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[IPFire-SCM] [git.ipfire.org] IPFire 3.x development tree branch, master, updated. 572b430895e61e9500891fe2ef851ede8e61508e
by git＠ipfire.org 01 Aug '12

01 Aug '12

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "IPFire 3.x development tree". The branch, master has been updated via 572b430895e61e9500891fe2ef851ede8e61508e (commit) from 0a57d68881fb3189391c1ffce83b19d2db90df75 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 572b430895e61e9500891fe2ef851ede8e61508e Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Wed Aug 1 14:42:28 2012 +0200 kernel: Update to 3.4.6. RC_MAP has been disabled because of compiler errors on armv5tel. On armv5tel, there is also setting KALLSYMS_EXTRA_PASS=1 required in order to build the kernel. ----------------------------------------------------------------------- Summary of changes: kernel/config-generic | 2 +- kernel/kernel.nm | 13 +- ...h => grsecurity-2.9.1-3.4.6-201207281946.patch} | 3040 ++++++++++++++------ 3 files changed, 2242 insertions(+), 813 deletions(-) rename kernel/patches/{grsecurity-2.9.1-3.4.4-201206251759.patch => grsecurity-2.9.1-3.4.6-201207281946.patch} (97%) Difference in files: diff --git a/kernel/config-generic b/kernel/config-generic index 044a46c..202a0a1 100644 --- a/kernel/config-generic +++ b/kernel/config-generic @@ -2306,7 +2306,7 @@ CONFIG_VIDEO_SAA7146=m CONFIG_VIDEO_SAA7146_VV=m CONFIG_RC_CORE=m CONFIG_LIRC=m -CONFIG_RC_MAP=m +# CONFIG_RC_MAP is not set CONFIG_IR_NEC_DECODER=m CONFIG_IR_RC5_DECODER=m CONFIG_IR_RC6_DECODER=m diff --git a/kernel/kernel.nm b/kernel/kernel.nm index c2e98d5..c5afa3c 100644 --- a/kernel/kernel.nm +++ b/kernel/kernel.nm @@ -4,8 +4,8 @@ ############################################################################### name = kernel -version = 3.4.4 -release = 3 +version = 3.4.6 +release = 1 thisapp = linux-%{version} maintainer = Michael Tremer <michael.tremer(a)ipfire.org> @@ -64,6 +64,9 @@ build # Should we build cpupower? build_cpupower = 1 + # Arguments that are passed to the kernel build command. + kernel_build_flags = + kernel_target = bzImage if "%{DISTRO_ARCH}" == "i686" # Build a default and legacy kernel for the @@ -98,6 +101,9 @@ build # ARM does not support cpupower. build_cpupower = 0 + + # http://lists.infradead.org/pipermail/linux-arm-kernel/2012-March/091404.html + kernel_build_flags = KALLSYMS_EXTRA_PASS=1 end if "%{DISTRO_ARCH}" == "armv7hl" @@ -213,7 +219,8 @@ build # Run the build. make ARCH=%{kernel_arch} oldnoconfig >/dev/null - make ARCH=%{kernel_arch} CC="gcc -fno-PIE" %{kernel_target} modules %{PARALLELISMFLAGS} + make ARCH=%{kernel_arch} CC="gcc -fno-PIE" %{kernel_target} modules \ + %{kernel_build_flags} %{PARALLELISMFLAGS} # Install the results. mkdir -pv %{BUILDROOT}/boot %{BUILDROOT}/lib/modules/${fullversion} diff --git a/kernel/patches/grsecurity-2.9.1-3.4.4-201206251759.patch b/kernel/patches/grsecurity-2.9.1-3.4.4-201206251759.patch deleted file mode 100644 index 083b3e1..0000000 --- a/kernel/patches/grsecurity-2.9.1-3.4.4-201206251759.patch +++ /dev/null @@ -1,84866 +0,0 @@ -diff --git a/Documentation/dontdiff b/Documentation/dontdiff -index b4a898f..a0e01d0 100644 ---- a/Documentation/dontdiff -+++ b/Documentation/dontdiff -@@ -2,9 +2,11 @@ - *.aux - *.bin - *.bz2 -+*.c.[012]*.* - *.cis - *.cpio - *.csp -+*.dbg - *.dsp - *.dvi - *.elf -@@ -14,6 +16,7 @@ - *.gcov - *.gen.S - *.gif -+*.gmo - *.grep - *.grp - *.gz -@@ -48,9 +51,11 @@ - *.tab.h - *.tex - *.ver -+*.vim - *.xml - *.xz - *_MODULES -+*_reg_safe.h - *_vga16.c - *~ - \#*# -@@ -69,6 +74,7 @@ Image - Module.markers - Module.symvers - PENDING -+PERF* - SCCS - System.map* - TAGS -@@ -80,6 +86,7 @@ aic7*seq.h* - aicasm - aicdb.h* - altivec*.c -+ashldi3.S - asm-offsets.h - asm_offsets.h - autoconf.h* -@@ -92,19 +99,24 @@ bounds.h - bsetup - btfixupprep - build -+builtin-policy.h - bvmlinux - bzImage* - capability_names.h - capflags.c - classlist.h* -+clut_vga16.c -+common-cmds.h - comp*.log - compile.h* - conf - config - config-* - config_data.h* -+config.c - config.mak - config.mak.autogen -+config.tmp - conmakehash - consolemap_deftbl.c* - cpustr.h -@@ -115,9 +127,11 @@ devlist.h* - dnotify_test - docproc - dslm -+dtc-lexer.lex.c - elf2ecoff - elfconfig.h* - evergreen_reg_safe.h -+exception_policy.conf - fixdep - flask.h - fore200e_mkfirm -@@ -125,12 +139,15 @@ fore200e_pca_fw.c* - gconf - gconf.glade.h - gen-devlist -+gen-kdb_cmds.c - gen_crc32table - gen_init_cpio - generated - genheaders - genksyms - *_gray256.c -+hash -+hid-example - hpet_example - hugepage-mmap - hugepage-shm -@@ -145,7 +162,7 @@ int32.c - int4.c - int8.c - kallsyms --kconfig -+kern_constants.h - keywords.c - ksym.c* - ksym.h* -@@ -153,7 +170,7 @@ kxgettext - lkc_defs.h - lex.c - lex.*.c --linux -+lib1funcs.S - logo_*.c - logo_*_clut224.c - logo_*_mono.c -@@ -164,14 +181,15 @@ machtypes.h - map - map_hugetlb - maui_boot.h --media - mconf -+mdp - miboot* - mk_elfconfig - mkboot - mkbugboot - mkcpustr - mkdep -+mkpiggy - mkprep - mkregtable - mktables -@@ -188,6 +206,7 @@ oui.c* - page-types - parse.c - parse.h -+parse-events* - patches* - pca200e.bin - pca200e_ecd.bin2 -@@ -197,6 +216,7 @@ perf-archive - piggyback - piggy.gzip - piggy.S -+pmu-* - pnmtologo - ppc_defs.h* - pss_boot.h -@@ -207,6 +227,7 @@ r300_reg_safe.h - r420_reg_safe.h - r600_reg_safe.h - recordmcount -+regdb.c - relocs - rlim_names.h - rn50_reg_safe.h -@@ -216,7 +237,9 @@ series - setup - setup.bin - setup.elf -+size_overflow_hash.h - sImage -+slabinfo - sm_tbl* - split-include - syscalltab.h -@@ -227,6 +250,7 @@ tftpboot.img - timeconst.h - times.h* - trix_boot.h -+user_constants.h - utsrelease.h* - vdso-syms.lds - vdso.lds -@@ -238,13 +262,17 @@ vdso32.lds - vdso32.so.dbg - vdso64.lds - vdso64.so.dbg -+vdsox32.lds -+vdsox32-syms.lds - version.h* - vmImage - vmlinux - vmlinux-* - vmlinux.aout - vmlinux.bin.all -+vmlinux.bin.bz2 - vmlinux.lds -+vmlinux.relocs - vmlinuz - voffset.h - vsyscall.lds -@@ -252,9 +280,11 @@ vsyscall_32.lds - wanxlfw.inc - uImage - unifdef -+utsrelease.h - wakeup.bin - wakeup.elf - wakeup.lds - zImage* - zconf.hash.c -+zconf.lex.c - zoffset.h -diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt -index c1601e5..08557ce 100644 ---- a/Documentation/kernel-parameters.txt -+++ b/Documentation/kernel-parameters.txt -@@ -2021,6 +2021,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted. - the specified number of seconds. This is to be used if - your oopses keep scrolling off the screen. - -+ pax_nouderef [X86] disables UDEREF. Most likely needed under certain -+ virtualization environments that don't cope well with the -+ expand down segment used by UDEREF on X86-32 or the frequent -+ page table updates on X86-64. -+ -+ pax_softmode= 0/1 to disable/enable PaX softmode on boot already. -+ - pcbit= [HW,ISDN] - - pcd. [PARIDE] -diff --git a/Makefile b/Makefile -index 058320d..817f7ad 100644 ---- a/Makefile -+++ b/Makefile -@@ -245,8 +245,9 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ - - HOSTCC = gcc - HOSTCXX = g++ --HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer --HOSTCXXFLAGS = -O2 -+HOSTCFLAGS = -Wall -W -Wmissing-prototypes -Wstrict-prototypes -Wno-unused-parameter -Wno-missing-field-initializers -O2 -fomit-frame-pointer -fno-delete-null-pointer-checks -+HOSTCLFAGS += $(call cc-option, -Wno-empty-body) -+HOSTCXXFLAGS = -O2 -Wall -W -fno-delete-null-pointer-checks - - # Decide whether to build built-in, modular, or both. - # Normally, just do built-in. -@@ -407,8 +408,8 @@ export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exc - # Rules shared between *config targets and build targets - - # Basic helpers built in scripts/ --PHONY += scripts_basic --scripts_basic: -+PHONY += scripts_basic gcc-plugins -+scripts_basic: gcc-plugins - $(Q)$(MAKE) $(build)=scripts/basic - $(Q)rm -f .tmp_quiet_recordmcount - -@@ -564,6 +565,56 @@ else - KBUILD_CFLAGS += -O2 - endif - -+ifndef DISABLE_PAX_PLUGINS -+PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(HOSTCC)" "$(HOSTCXX)" "$(CC)") -+ifneq ($(PLUGINCC),) -+ifndef DISABLE_PAX_CONSTIFY_PLUGIN -+ifndef CONFIG_UML -+CONSTIFY_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/constify_plugin.so -DCONSTIFY_PLUGIN -+endif -+endif -+ifdef CONFIG_PAX_MEMORY_STACKLEAK -+STACKLEAK_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/stackleak_plugin.so -DSTACKLEAK_PLUGIN -+STACKLEAK_PLUGIN_CFLAGS += -fplugin-arg-stackleak_plugin-track-lowest-sp=100 -+endif -+ifdef CONFIG_KALLOCSTAT_PLUGIN -+KALLOCSTAT_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/kallocstat_plugin.so -+endif -+ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+KERNEXEC_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/kernexec_plugin.so -+KERNEXEC_PLUGIN_CFLAGS += -fplugin-arg-kernexec_plugin-method=$(CONFIG_PAX_KERNEXEC_PLUGIN_METHOD) -DKERNEXEC_PLUGIN -+KERNEXEC_PLUGIN_AFLAGS := -DKERNEXEC_PLUGIN -+endif -+ifdef CONFIG_CHECKER_PLUGIN -+ifeq ($(call cc-ifversion, -ge, 0406, y), y) -+CHECKER_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/checker_plugin.so -DCHECKER_PLUGIN -+endif -+endif -+COLORIZE_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/colorize_plugin.so -+ifdef CONFIG_PAX_SIZE_OVERFLOW -+SIZE_OVERFLOW_PLUGIN := -fplugin=$(objtree)/tools/gcc/size_overflow_plugin.so -DSIZE_OVERFLOW_PLUGIN -+endif -+GCC_PLUGINS_CFLAGS := $(CONSTIFY_PLUGIN_CFLAGS) $(STACKLEAK_PLUGIN_CFLAGS) $(KALLOCSTAT_PLUGIN_CFLAGS) -+GCC_PLUGINS_CFLAGS += $(KERNEXEC_PLUGIN_CFLAGS) $(CHECKER_PLUGIN_CFLAGS) $(COLORIZE_PLUGIN_CFLAGS) $(SIZE_OVERFLOW_PLUGIN) -+GCC_PLUGINS_AFLAGS := $(KERNEXEC_PLUGIN_AFLAGS) -+export PLUGINCC CONSTIFY_PLUGIN STACKLEAK_PLUGIN KERNEXEC_PLUGIN CHECKER_PLUGIN SIZE_OVERFLOW_PLUGIN -+ifeq ($(KBUILD_EXTMOD),) -+gcc-plugins: -+ $(Q)$(MAKE) $(build)=tools/gcc -+else -+gcc-plugins: ; -+endif -+else -+gcc-plugins: -+ifeq ($(call cc-ifversion, -ge, 0405, y), y) -+ $(error Your gcc installation does not support plugins. If the necessary headers for plugin support are missing, they should be installed. On Debian, apt-get install gcc-<ver>-plugin-dev. If you choose to ignore this error and lessen the improvements provided by this patch, re-run make with the DISABLE_PAX_PLUGINS=y argument.)) -+else -+ $(Q)echo "warning, your gcc version does not support plugins, you should upgrade it to gcc 4.5 at least" -+endif -+ $(Q)echo "PAX_MEMORY_STACKLEAK and other features will be less secure" -+endif -+endif -+ - include $(srctree)/arch/$(SRCARCH)/Makefile - - ifneq ($(CONFIG_FRAME_WARN),0) -@@ -708,7 +759,7 @@ export mod_strip_cmd - - - ifeq ($(KBUILD_EXTMOD),) --core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ -+core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ grsecurity/ - - vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ - $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ -@@ -932,6 +983,8 @@ vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE - - # The actual objects are generated when descending, - # make sure no implicit rule kicks in -+$(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) -+$(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) - $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; - - # Handle descending into subdirectories listed in $(vmlinux-dirs) -@@ -941,7 +994,7 @@ $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; - # Error messages still appears in the original language - - PHONY += $(vmlinux-dirs) --$(vmlinux-dirs): prepare scripts -+$(vmlinux-dirs): gcc-plugins prepare scripts - $(Q)$(MAKE) $(build)=$@ - - # Store (new) KERNELRELASE string in include/config/kernel.release -@@ -985,6 +1038,7 @@ prepare0: archprepare FORCE - $(Q)$(MAKE) $(build)=. - - # All the preparing.. -+prepare: KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS)) - prepare: prepare0 - - # Generate some files -@@ -1092,6 +1146,8 @@ all: modules - # using awk while concatenating to the final file. - - PHONY += modules -+modules: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) -+modules: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) - modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin - $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order - @$(kecho) ' Building modules, stage 2.'; -@@ -1107,7 +1163,7 @@ modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) - - # Target to prepare building external modules - PHONY += modules_prepare --modules_prepare: prepare scripts -+modules_prepare: gcc-plugins prepare scripts - - # Target to install modules - PHONY += modules_install -@@ -1166,7 +1222,7 @@ CLEAN_FILES += vmlinux System.map \ - MRPROPER_DIRS += include/config usr/include include/generated \ - arch/*/include/generated - MRPROPER_FILES += .config .config.old .version .old_version \ -- include/linux/version.h \ -+ include/linux/version.h tools/gcc/size_overflow_hash.h\ - Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS - - # clean - Delete most, but leave enough to build external modules -@@ -1204,6 +1260,7 @@ distclean: mrproper - $ -name '*.orig' -o -name '*.rej' -o -name '*~' \ - -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ - -o -name '.*.rej' \ -+ -o -name '.*.rej' -o -name '*.so' \ - -o -name '*%' -o -name '.*.cmd' -o -name 'core' $ \ - -type f -print | xargs rm -f - -@@ -1364,6 +1421,8 @@ PHONY += $(module-dirs) modules - $(module-dirs): crmodverdir $(objtree)/Module.symvers - $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) - -+modules: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) -+modules: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) - modules: $(module-dirs) - @$(kecho) ' Building modules, stage 2.'; - $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost -@@ -1490,17 +1549,21 @@ else - target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) - endif - --%.s: %.c prepare scripts FORCE -+%.s: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) -+%.s: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) -+%.s: %.c gcc-plugins prepare scripts FORCE - $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) - %.i: %.c prepare scripts FORCE - $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) --%.o: %.c prepare scripts FORCE -+%.o: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) -+%.o: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) -+%.o: %.c gcc-plugins prepare scripts FORCE - $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) - %.lst: %.c prepare scripts FORCE - $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) --%.s: %.S prepare scripts FORCE -+%.s: %.S gcc-plugins prepare scripts FORCE - $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) --%.o: %.S prepare scripts FORCE -+%.o: %.S gcc-plugins prepare scripts FORCE - $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) - %.symtypes: %.c prepare scripts FORCE - $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) -@@ -1510,11 +1573,15 @@ endif - $(cmd_crmodverdir) - $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ - $(build)=$(build-dir) --%/: prepare scripts FORCE -+%/: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) -+%/: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) -+%/: gcc-plugins prepare scripts FORCE - $(cmd_crmodverdir) - $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ - $(build)=$(build-dir) --%.ko: prepare scripts FORCE -+%.ko: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) -+%.ko: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) -+%.ko: gcc-plugins prepare scripts FORCE - $(cmd_crmodverdir) - $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ - $(build)=$(build-dir) $(@:.ko=.o) -diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h -index 3bb7ffe..347a54c 100644 ---- a/arch/alpha/include/asm/atomic.h -+++ b/arch/alpha/include/asm/atomic.h -@@ -250,6 +250,16 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u) - #define atomic_dec(v) atomic_sub(1,(v)) - #define atomic64_dec(v) atomic64_sub(1,(v)) - -+#define atomic64_read_unchecked(v) atomic64_read(v) -+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i)) -+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v)) -+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v)) -+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v)) -+#define atomic64_inc_unchecked(v) atomic64_inc(v) -+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v) -+#define atomic64_dec_unchecked(v) atomic64_dec(v) -+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n)) -+ - #define smp_mb__before_atomic_dec() smp_mb() - #define smp_mb__after_atomic_dec() smp_mb() - #define smp_mb__before_atomic_inc() smp_mb() -diff --git a/arch/alpha/include/asm/cache.h b/arch/alpha/include/asm/cache.h -index ad368a9..fbe0f25 100644 ---- a/arch/alpha/include/asm/cache.h -+++ b/arch/alpha/include/asm/cache.h -@@ -4,19 +4,19 @@ - #ifndef __ARCH_ALPHA_CACHE_H - #define __ARCH_ALPHA_CACHE_H - -+#include <linux/const.h> - - /* Bytes per L1 (data) cache line. */ - #if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EV6) --# define L1_CACHE_BYTES 64 - # define L1_CACHE_SHIFT 6 - #else - /* Both EV4 and EV5 are write-through, read-allocate, - direct-mapped, physical. - */ --# define L1_CACHE_BYTES 32 - # define L1_CACHE_SHIFT 5 - #endif - -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - #define SMP_CACHE_BYTES L1_CACHE_BYTES - - #endif -diff --git a/arch/alpha/include/asm/elf.h b/arch/alpha/include/asm/elf.h -index 968d999..d36b2df 100644 ---- a/arch/alpha/include/asm/elf.h -+++ b/arch/alpha/include/asm/elf.h -@@ -91,6 +91,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; - - #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x1000000) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (current->personality & ADDR_LIMIT_32BIT ? 0x10000 : 0x120000000UL) -+ -+#define PAX_DELTA_MMAP_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 28) -+#define PAX_DELTA_STACK_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 19) -+#endif -+ - /* $0 is set by ld.so to a pointer to a function which might be - registered using atexit. This provides a mean for the dynamic - linker to call DT_FINI functions for shared libraries that have -diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h -index bc2a0da..8ad11ee 100644 ---- a/arch/alpha/include/asm/pgalloc.h -+++ b/arch/alpha/include/asm/pgalloc.h -@@ -29,6 +29,12 @@ pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd) - pgd_set(pgd, pmd); - } - -+static inline void -+pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd) -+{ -+ pgd_populate(mm, pgd, pmd); -+} -+ - extern pgd_t *pgd_alloc(struct mm_struct *mm); - - static inline void -diff --git a/arch/alpha/include/asm/pgtable.h b/arch/alpha/include/asm/pgtable.h -index 81a4342..348b927 100644 ---- a/arch/alpha/include/asm/pgtable.h -+++ b/arch/alpha/include/asm/pgtable.h -@@ -102,6 +102,17 @@ struct vm_area_struct; - #define PAGE_SHARED __pgprot(_PAGE_VALID | __ACCESS_BITS) - #define PAGE_COPY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW) - #define PAGE_READONLY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOE) -+# define PAGE_COPY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE) -+# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE) -+#else -+# define PAGE_SHARED_NOEXEC PAGE_SHARED -+# define PAGE_COPY_NOEXEC PAGE_COPY -+# define PAGE_READONLY_NOEXEC PAGE_READONLY -+#endif -+ - #define PAGE_KERNEL __pgprot(_PAGE_VALID | _PAGE_ASM | _PAGE_KRE | _PAGE_KWE) - - #define _PAGE_NORMAL(x) __pgprot(_PAGE_VALID | __ACCESS_BITS | (x)) -diff --git a/arch/alpha/kernel/module.c b/arch/alpha/kernel/module.c -index 2fd00b7..cfd5069 100644 ---- a/arch/alpha/kernel/module.c -+++ b/arch/alpha/kernel/module.c -@@ -160,7 +160,7 @@ apply_relocate_add(Elf64_Shdr *sechdrs, const char *strtab, - - /* The small sections were sorted to the end of the segment. - The following should definitely cover them. */ -- gp = (u64)me->module_core + me->core_size - 0x8000; -+ gp = (u64)me->module_core_rw + me->core_size_rw - 0x8000; - got = sechdrs[me->arch.gotsecindex].sh_addr; - - for (i = 0; i < n; i++) { -diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c -index 49ee319..9ee7d14 100644 ---- a/arch/alpha/kernel/osf_sys.c -+++ b/arch/alpha/kernel/osf_sys.c -@@ -1146,7 +1146,7 @@ arch_get_unmapped_area_1(unsigned long addr, unsigned long len, - /* At this point: (!vma || addr < vma->vm_end). */ - if (limit - len < addr) - return -ENOMEM; -- if (!vma || addr + len <= vma->vm_start) -+ if (check_heap_stack_gap(vma, addr, len)) - return addr; - addr = vma->vm_end; - vma = vma->vm_next; -@@ -1182,6 +1182,10 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, - merely specific addresses, but regions of memory -- perhaps - this feature should be incorporated into all ports? */ - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(current->mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit); - if (addr != (unsigned long) -ENOMEM) -@@ -1189,8 +1193,8 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, - } - - /* Next, try allocating at TASK_UNMAPPED_BASE. */ -- addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE), -- len, limit); -+ addr = arch_get_unmapped_area_1 (PAGE_ALIGN(current->mm->mmap_base), len, limit); -+ - if (addr != (unsigned long) -ENOMEM) - return addr; - -diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c -index 5eecab1..609abc0 100644 ---- a/arch/alpha/mm/fault.c -+++ b/arch/alpha/mm/fault.c -@@ -53,6 +53,124 @@ __load_new_mm_context(struct mm_struct *next_mm) - __reload_thread(pcb); - } - -+#ifdef CONFIG_PAX_PAGEEXEC -+/* -+ * PaX: decide what to do with offenders (regs->pc = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when patched PLT trampoline was detected -+ * 3 when unpatched PLT trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ -+#ifdef CONFIG_PAX_EMUPLT -+ int err; -+ -+ do { /* PaX: patched PLT emulation #1 */ -+ unsigned int ldah, ldq, jmp; -+ -+ err = get_user(ldah, (unsigned int *)regs->pc); -+ err |= get_user(ldq, (unsigned int *)(regs->pc+4)); -+ err |= get_user(jmp, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((ldah & 0xFFFF0000U) == 0x277B0000U && -+ (ldq & 0xFFFF0000U) == 0xA77B0000U && -+ jmp == 0x6BFB0000U) -+ { -+ unsigned long r27, addr; -+ unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16; -+ unsigned long addrl = ldq | 0xFFFFFFFFFFFF0000UL; -+ -+ addr = regs->r27 + ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL); -+ err = get_user(r27, (unsigned long *)addr); -+ if (err) -+ break; -+ -+ regs->r27 = r27; -+ regs->pc = r27; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #2 */ -+ unsigned int ldah, lda, br; -+ -+ err = get_user(ldah, (unsigned int *)regs->pc); -+ err |= get_user(lda, (unsigned int *)(regs->pc+4)); -+ err |= get_user(br, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((ldah & 0xFFFF0000U) == 0x277B0000U && -+ (lda & 0xFFFF0000U) == 0xA77B0000U && -+ (br & 0xFFE00000U) == 0xC3E00000U) -+ { -+ unsigned long addr = br | 0xFFFFFFFFFFE00000UL; -+ unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16; -+ unsigned long addrl = lda | 0xFFFFFFFFFFFF0000UL; -+ -+ regs->r27 += ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL); -+ regs->pc += 12 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2); -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation */ -+ unsigned int br; -+ -+ err = get_user(br, (unsigned int *)regs->pc); -+ -+ if (!err && (br & 0xFFE00000U) == 0xC3800000U) { -+ unsigned int br2, ldq, nop, jmp; -+ unsigned long addr = br | 0xFFFFFFFFFFE00000UL, resolver; -+ -+ addr = regs->pc + 4 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2); -+ err = get_user(br2, (unsigned int *)addr); -+ err |= get_user(ldq, (unsigned int *)(addr+4)); -+ err |= get_user(nop, (unsigned int *)(addr+8)); -+ err |= get_user(jmp, (unsigned int *)(addr+12)); -+ err |= get_user(resolver, (unsigned long *)(addr+16)); -+ -+ if (err) -+ break; -+ -+ if (br2 == 0xC3600000U && -+ ldq == 0xA77B000CU && -+ nop == 0x47FF041FU && -+ jmp == 0x6B7B0000U) -+ { -+ regs->r28 = regs->pc+4; -+ regs->r27 = addr+16; -+ regs->pc = resolver; -+ return 3; -+ } -+ } -+ } while (0); -+#endif -+ -+ return 1; -+} -+ -+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif - - /* - * This routine handles page faults. It determines the address, -@@ -130,8 +248,29 @@ do_page_fault(unsigned long address, unsigned long mmcsr, - good_area: - si_code = SEGV_ACCERR; - if (cause < 0) { -- if (!(vma->vm_flags & VM_EXEC)) -+ if (!(vma->vm_flags & VM_EXEC)) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->pc) -+ goto bad_area; -+ -+ up_read(&mm->mmap_sem); -+ switch (pax_handle_fetch_fault(regs)) { -+ -+#ifdef CONFIG_PAX_EMUPLT -+ case 2: -+ case 3: -+ return; -+#endif -+ -+ } -+ pax_report_fault(regs, (void *)regs->pc, (void *)rdusp()); -+ do_group_exit(SIGKILL); -+#else - goto bad_area; -+#endif -+ -+ } - } else if (!cause) { - /* Allow reads even for write-only mappings */ - if (!(vma->vm_flags & (VM_READ | VM_WRITE))) -diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h -index 68374ba..cff7196 100644 ---- a/arch/arm/include/asm/atomic.h -+++ b/arch/arm/include/asm/atomic.h -@@ -17,17 +17,35 @@ - #include <asm/barrier.h> - #include <asm/cmpxchg.h> - -+#ifdef CONFIG_GENERIC_ATOMIC64 -+#include <asm-generic/atomic64.h> -+#endif -+ - #define ATOMIC_INIT(i) { (i) } - - #ifdef __KERNEL__ - -+#define _ASM_EXTABLE(from, to) \ -+" .pushsection __ex_table,\"a\"\n"\ -+" .align 3\n" \ -+" .long " #from ", " #to"\n" \ -+" .popsection" -+ - /* - * On ARM, ordinary assignment (str instruction) doesn't clear the local - * strex/ldrex monitor on some implementations. The reason we can use it for - * atomic_set() is the clrex or dummy strex done on every exception return. - */ - #define atomic_read(v) (*(volatile int *)&(v)->counter) -+static inline int atomic_read_unchecked(const atomic_unchecked_t *v) -+{ -+ return v->counter; -+} - #define atomic_set(v,i) (((v)->counter) = (i)) -+static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i) -+{ -+ v->counter = i; -+} - - #if __LINUX_ARM_ARCH__ >= 6 - -@@ -42,6 +60,35 @@ static inline void atomic_add(int i, atomic_t *v) - int result; - - __asm__ __volatile__("@ atomic_add\n" -+"1: ldrex %1, [%3]\n" -+" adds %0, %1, %4\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+" bvc 3f\n" -+"2: bkpt 0xf103\n" -+"3:\n" -+#endif -+ -+" strex %1, %0, [%3]\n" -+" teq %1, #0\n" -+" bne 1b" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+"\n4:\n" -+ _ASM_EXTABLE(2b, 4b) -+#endif -+ -+ : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) -+ : "r" (&v->counter), "Ir" (i) -+ : "cc"); -+} -+ -+static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v) -+{ -+ unsigned long tmp; -+ int result; -+ -+ __asm__ __volatile__("@ atomic_add_unchecked\n" - "1: ldrex %0, [%3]\n" - " add %0, %0, %4\n" - " strex %1, %0, [%3]\n" -@@ -60,6 +107,42 @@ static inline int atomic_add_return(int i, atomic_t *v) - smp_mb(); - - __asm__ __volatile__("@ atomic_add_return\n" -+"1: ldrex %1, [%3]\n" -+" adds %0, %1, %4\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+" bvc 3f\n" -+" mov %0, %1\n" -+"2: bkpt 0xf103\n" -+"3:\n" -+#endif -+ -+" strex %1, %0, [%3]\n" -+" teq %1, #0\n" -+" bne 1b" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+"\n4:\n" -+ _ASM_EXTABLE(2b, 4b) -+#endif -+ -+ : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) -+ : "r" (&v->counter), "Ir" (i) -+ : "cc"); -+ -+ smp_mb(); -+ -+ return result; -+} -+ -+static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v) -+{ -+ unsigned long tmp; -+ int result; -+ -+ smp_mb(); -+ -+ __asm__ __volatile__("@ atomic_add_return_unchecked\n" - "1: ldrex %0, [%3]\n" - " add %0, %0, %4\n" - " strex %1, %0, [%3]\n" -@@ -80,6 +163,35 @@ static inline void atomic_sub(int i, atomic_t *v) - int result; - - __asm__ __volatile__("@ atomic_sub\n" -+"1: ldrex %1, [%3]\n" -+" subs %0, %1, %4\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+" bvc 3f\n" -+"2: bkpt 0xf103\n" -+"3:\n" -+#endif -+ -+" strex %1, %0, [%3]\n" -+" teq %1, #0\n" -+" bne 1b" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+"\n4:\n" -+ _ASM_EXTABLE(2b, 4b) -+#endif -+ -+ : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) -+ : "r" (&v->counter), "Ir" (i) -+ : "cc"); -+} -+ -+static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v) -+{ -+ unsigned long tmp; -+ int result; -+ -+ __asm__ __volatile__("@ atomic_sub_unchecked\n" - "1: ldrex %0, [%3]\n" - " sub %0, %0, %4\n" - " strex %1, %0, [%3]\n" -@@ -98,11 +210,25 @@ static inline int atomic_sub_return(int i, atomic_t *v) - smp_mb(); - - __asm__ __volatile__("@ atomic_sub_return\n" --"1: ldrex %0, [%3]\n" --" sub %0, %0, %4\n" -+"1: ldrex %1, [%3]\n" -+" sub %0, %1, %4\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+" bvc 3f\n" -+" mov %0, %1\n" -+"2: bkpt 0xf103\n" -+"3:\n" -+#endif -+ - " strex %1, %0, [%3]\n" - " teq %1, #0\n" - " bne 1b" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+"\n4:\n" -+ _ASM_EXTABLE(2b, 4b) -+#endif -+ - : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) - : "r" (&v->counter), "Ir" (i) - : "cc"); -@@ -134,6 +260,28 @@ static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new) - return oldval; - } - -+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *ptr, int old, int new) -+{ -+ unsigned long oldval, res; -+ -+ smp_mb(); -+ -+ do { -+ __asm__ __volatile__("@ atomic_cmpxchg_unchecked\n" -+ "ldrex %1, [%3]\n" -+ "mov %0, #0\n" -+ "teq %1, %4\n" -+ "strexeq %0, %5, [%3]\n" -+ : "=&r" (res), "=&r" (oldval), "+Qo" (ptr->counter) -+ : "r" (&ptr->counter), "Ir" (old), "r" (new) -+ : "cc"); -+ } while (res); -+ -+ smp_mb(); -+ -+ return oldval; -+} -+ - static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) - { - unsigned long tmp, tmp2; -@@ -167,7 +315,17 @@ static inline int atomic_add_return(int i, atomic_t *v) - - return val; - } -+ -+static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v) -+{ -+ return atomic_add_return(i, v); -+} -+ - #define atomic_add(i, v) (void) atomic_add_return(i, v) -+static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v) -+{ -+ (void) atomic_add_return(i, v); -+} - - static inline int atomic_sub_return(int i, atomic_t *v) - { -@@ -182,6 +340,10 @@ static inline int atomic_sub_return(int i, atomic_t *v) - return val; - } - #define atomic_sub(i, v) (void) atomic_sub_return(i, v) -+static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v) -+{ -+ (void) atomic_sub_return(i, v); -+} - - static inline int atomic_cmpxchg(atomic_t *v, int old, int new) - { -@@ -197,6 +359,11 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new) - return ret; - } - -+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new) -+{ -+ return atomic_cmpxchg(v, old, new); -+} -+ - static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) - { - unsigned long flags; -@@ -209,6 +376,10 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) - #endif /* __LINUX_ARM_ARCH__ */ - - #define atomic_xchg(v, new) (xchg(&((v)->counter), new)) -+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new) -+{ -+ return xchg(&v->counter, new); -+} - - static inline int __atomic_add_unless(atomic_t *v, int a, int u) - { -@@ -221,11 +392,27 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u) - } - - #define atomic_inc(v) atomic_add(1, v) -+static inline void atomic_inc_unchecked(atomic_unchecked_t *v) -+{ -+ atomic_add_unchecked(1, v); -+} - #define atomic_dec(v) atomic_sub(1, v) -+static inline void atomic_dec_unchecked(atomic_unchecked_t *v) -+{ -+ atomic_sub_unchecked(1, v); -+} - - #define atomic_inc_and_test(v) (atomic_add_return(1, v) == 0) -+static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v) -+{ -+ return atomic_add_return_unchecked(1, v) == 0; -+} - #define atomic_dec_and_test(v) (atomic_sub_return(1, v) == 0) - #define atomic_inc_return(v) (atomic_add_return(1, v)) -+static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v) -+{ -+ return atomic_add_return_unchecked(1, v); -+} - #define atomic_dec_return(v) (atomic_sub_return(1, v)) - #define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0) - -@@ -241,6 +428,14 @@ typedef struct { - u64 __aligned(8) counter; - } atomic64_t; - -+#ifdef CONFIG_PAX_REFCOUNT -+typedef struct { -+ u64 __aligned(8) counter; -+} atomic64_unchecked_t; -+#else -+typedef atomic64_t atomic64_unchecked_t; -+#endif -+ - #define ATOMIC64_INIT(i) { (i) } - - static inline u64 atomic64_read(atomic64_t *v) -@@ -256,6 +451,19 @@ static inline u64 atomic64_read(atomic64_t *v) - return result; - } - -+static inline u64 atomic64_read_unchecked(atomic64_unchecked_t *v) -+{ -+ u64 result; -+ -+ __asm__ __volatile__("@ atomic64_read_unchecked\n" -+" ldrexd %0, %H0, [%1]" -+ : "=&r" (result) -+ : "r" (&v->counter), "Qo" (v->counter) -+ ); -+ -+ return result; -+} -+ - static inline void atomic64_set(atomic64_t *v, u64 i) - { - u64 tmp; -@@ -270,6 +478,20 @@ static inline void atomic64_set(atomic64_t *v, u64 i) - : "cc"); - } - -+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, u64 i) -+{ -+ u64 tmp; -+ -+ __asm__ __volatile__("@ atomic64_set_unchecked\n" -+"1: ldrexd %0, %H0, [%2]\n" -+" strexd %0, %3, %H3, [%2]\n" -+" teq %0, #0\n" -+" bne 1b" -+ : "=&r" (tmp), "=Qo" (v->counter) -+ : "r" (&v->counter), "r" (i) -+ : "cc"); -+} -+ - static inline void atomic64_add(u64 i, atomic64_t *v) - { - u64 result; -@@ -278,6 +500,36 @@ static inline void atomic64_add(u64 i, atomic64_t *v) - __asm__ __volatile__("@ atomic64_add\n" - "1: ldrexd %0, %H0, [%3]\n" - " adds %0, %0, %4\n" -+" adcs %H0, %H0, %H4\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+" bvc 3f\n" -+"2: bkpt 0xf103\n" -+"3:\n" -+#endif -+ -+" strexd %1, %0, %H0, [%3]\n" -+" teq %1, #0\n" -+" bne 1b" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+"\n4:\n" -+ _ASM_EXTABLE(2b, 4b) -+#endif -+ -+ : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) -+ : "r" (&v->counter), "r" (i) -+ : "cc"); -+} -+ -+static inline void atomic64_add_unchecked(u64 i, atomic64_unchecked_t *v) -+{ -+ u64 result; -+ unsigned long tmp; -+ -+ __asm__ __volatile__("@ atomic64_add_unchecked\n" -+"1: ldrexd %0, %H0, [%3]\n" -+" adds %0, %0, %4\n" - " adc %H0, %H0, %H4\n" - " strexd %1, %0, %H0, [%3]\n" - " teq %1, #0\n" -@@ -289,12 +541,49 @@ static inline void atomic64_add(u64 i, atomic64_t *v) - - static inline u64 atomic64_add_return(u64 i, atomic64_t *v) - { -- u64 result; -- unsigned long tmp; -+ u64 result, tmp; - - smp_mb(); - - __asm__ __volatile__("@ atomic64_add_return\n" -+"1: ldrexd %1, %H1, [%3]\n" -+" adds %0, %1, %4\n" -+" adcs %H0, %H1, %H4\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+" bvc 3f\n" -+" mov %0, %1\n" -+" mov %H0, %H1\n" -+"2: bkpt 0xf103\n" -+"3:\n" -+#endif -+ -+" strexd %1, %0, %H0, [%3]\n" -+" teq %1, #0\n" -+" bne 1b" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+"\n4:\n" -+ _ASM_EXTABLE(2b, 4b) -+#endif -+ -+ : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) -+ : "r" (&v->counter), "r" (i) -+ : "cc"); -+ -+ smp_mb(); -+ -+ return result; -+} -+ -+static inline u64 atomic64_add_return_unchecked(u64 i, atomic64_unchecked_t *v) -+{ -+ u64 result; -+ unsigned long tmp; -+ -+ smp_mb(); -+ -+ __asm__ __volatile__("@ atomic64_add_return_unchecked\n" - "1: ldrexd %0, %H0, [%3]\n" - " adds %0, %0, %4\n" - " adc %H0, %H0, %H4\n" -@@ -318,6 +607,36 @@ static inline void atomic64_sub(u64 i, atomic64_t *v) - __asm__ __volatile__("@ atomic64_sub\n" - "1: ldrexd %0, %H0, [%3]\n" - " subs %0, %0, %4\n" -+" sbcs %H0, %H0, %H4\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+" bvc 3f\n" -+"2: bkpt 0xf103\n" -+"3:\n" -+#endif -+ -+" strexd %1, %0, %H0, [%3]\n" -+" teq %1, #0\n" -+" bne 1b" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+"\n4:\n" -+ _ASM_EXTABLE(2b, 4b) -+#endif -+ -+ : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) -+ : "r" (&v->counter), "r" (i) -+ : "cc"); -+} -+ -+static inline void atomic64_sub_unchecked(u64 i, atomic64_unchecked_t *v) -+{ -+ u64 result; -+ unsigned long tmp; -+ -+ __asm__ __volatile__("@ atomic64_sub_unchecked\n" -+"1: ldrexd %0, %H0, [%3]\n" -+" subs %0, %0, %4\n" - " sbc %H0, %H0, %H4\n" - " strexd %1, %0, %H0, [%3]\n" - " teq %1, #0\n" -@@ -329,18 +648,32 @@ static inline void atomic64_sub(u64 i, atomic64_t *v) - - static inline u64 atomic64_sub_return(u64 i, atomic64_t *v) - { -- u64 result; -- unsigned long tmp; -+ u64 result, tmp; - - smp_mb(); - - __asm__ __volatile__("@ atomic64_sub_return\n" --"1: ldrexd %0, %H0, [%3]\n" --" subs %0, %0, %4\n" --" sbc %H0, %H0, %H4\n" -+"1: ldrexd %1, %H1, [%3]\n" -+" subs %0, %1, %4\n" -+" sbc %H0, %H1, %H4\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+" bvc 3f\n" -+" mov %0, %1\n" -+" mov %H0, %H1\n" -+"2: bkpt 0xf103\n" -+"3:\n" -+#endif -+ - " strexd %1, %0, %H0, [%3]\n" - " teq %1, #0\n" - " bne 1b" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+"\n4:\n" -+ _ASM_EXTABLE(2b, 4b) -+#endif -+ - : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) - : "r" (&v->counter), "r" (i) - : "cc"); -@@ -374,6 +707,30 @@ static inline u64 atomic64_cmpxchg(atomic64_t *ptr, u64 old, u64 new) - return oldval; - } - -+static inline u64 atomic64_cmpxchg_unchecked(atomic64_unchecked_t *ptr, u64 old, u64 new) -+{ -+ u64 oldval; -+ unsigned long res; -+ -+ smp_mb(); -+ -+ do { -+ __asm__ __volatile__("@ atomic64_cmpxchg_unchecked\n" -+ "ldrexd %1, %H1, [%3]\n" -+ "mov %0, #0\n" -+ "teq %1, %4\n" -+ "teqeq %H1, %H4\n" -+ "strexdeq %0, %5, %H5, [%3]" -+ : "=&r" (res), "=&r" (oldval), "+Qo" (ptr->counter) -+ : "r" (&ptr->counter), "r" (old), "r" (new) -+ : "cc"); -+ } while (res); -+ -+ smp_mb(); -+ -+ return oldval; -+} -+ - static inline u64 atomic64_xchg(atomic64_t *ptr, u64 new) - { - u64 result; -@@ -397,21 +754,34 @@ static inline u64 atomic64_xchg(atomic64_t *ptr, u64 new) - - static inline u64 atomic64_dec_if_positive(atomic64_t *v) - { -- u64 result; -- unsigned long tmp; -+ u64 result, tmp; - - smp_mb(); - - __asm__ __volatile__("@ atomic64_dec_if_positive\n" --"1: ldrexd %0, %H0, [%3]\n" --" subs %0, %0, #1\n" --" sbc %H0, %H0, #0\n" -+"1: ldrexd %1, %H1, [%3]\n" -+" subs %0, %1, #1\n" -+" sbc %H0, %H1, #0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+" bvc 3f\n" -+" mov %0, %1\n" -+" mov %H0, %H1\n" -+"2: bkpt 0xf103\n" -+"3:\n" -+#endif -+ - " teq %H0, #0\n" --" bmi 2f\n" -+" bmi 4f\n" - " strexd %1, %0, %H0, [%3]\n" - " teq %1, #0\n" - " bne 1b\n" --"2:" -+"4:\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ _ASM_EXTABLE(2b, 4b) -+#endif -+ - : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) - : "r" (&v->counter) - : "cc"); -@@ -434,13 +804,25 @@ static inline int atomic64_add_unless(atomic64_t *v, u64 a, u64 u) - " teq %0, %5\n" - " teqeq %H0, %H5\n" - " moveq %1, #0\n" --" beq 2f\n" -+" beq 4f\n" - " adds %0, %0, %6\n" - " adc %H0, %H0, %H6\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+" bvc 3f\n" -+"2: bkpt 0xf103\n" -+"3:\n" -+#endif -+ - " strexd %2, %0, %H0, [%4]\n" - " teq %2, #0\n" - " bne 1b\n" --"2:" -+"4:\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ _ASM_EXTABLE(2b, 4b) -+#endif -+ - : "=&r" (val), "+r" (ret), "=&r" (tmp), "+Qo" (v->counter) - : "r" (&v->counter), "r" (u), "r" (a) - : "cc"); -@@ -453,10 +835,13 @@ static inline int atomic64_add_unless(atomic64_t *v, u64 a, u64 u) - - #define atomic64_add_negative(a, v) (atomic64_add_return((a), (v)) < 0) - #define atomic64_inc(v) atomic64_add(1LL, (v)) -+#define atomic64_inc_unchecked(v) atomic64_add_unchecked(1LL, (v)) - #define atomic64_inc_return(v) atomic64_add_return(1LL, (v)) -+#define atomic64_inc_return_unchecked(v) atomic64_add_return_unchecked(1LL, (v)) - #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0) - #define atomic64_sub_and_test(a, v) (atomic64_sub_return((a), (v)) == 0) - #define atomic64_dec(v) atomic64_sub(1LL, (v)) -+#define atomic64_dec_unchecked(v) atomic64_sub_unchecked(1LL, (v)) - #define atomic64_dec_return(v) atomic64_sub_return(1LL, (v)) - #define atomic64_dec_and_test(v) (atomic64_dec_return((v)) == 0) - #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1LL, 0LL) -diff --git a/arch/arm/include/asm/cache.h b/arch/arm/include/asm/cache.h -index 75fe66b..2255c86 100644 ---- a/arch/arm/include/asm/cache.h -+++ b/arch/arm/include/asm/cache.h -@@ -4,8 +4,10 @@ - #ifndef __ASMARM_CACHE_H - #define __ASMARM_CACHE_H - -+#include <linux/const.h> -+ - #define L1_CACHE_SHIFT CONFIG_ARM_L1_CACHE_SHIFT --#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - /* - * Memory returned by kmalloc() may be used for DMA, so we must make -diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h -index 1252a26..9dc17b5 100644 ---- a/arch/arm/include/asm/cacheflush.h -+++ b/arch/arm/include/asm/cacheflush.h -@@ -108,7 +108,7 @@ struct cpu_cache_fns { - void (*dma_unmap_area)(const void *, size_t, int); - - void (*dma_flush_range)(const void *, const void *); --}; -+} __no_const; - - /* - * Select the calling method -diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h -index d41d7cb..9bea5e0 100644 ---- a/arch/arm/include/asm/cmpxchg.h -+++ b/arch/arm/include/asm/cmpxchg.h -@@ -102,6 +102,8 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size - - #define xchg(ptr,x) \ - ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) -+#define xchg_unchecked(ptr,x) \ -+ ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) - - #include <asm-generic/cmpxchg-local.h> - -diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h -index 38050b1..9d90e8b 100644 ---- a/arch/arm/include/asm/elf.h -+++ b/arch/arm/include/asm/elf.h -@@ -116,7 +116,14 @@ int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs); - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - --#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) -+#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) -+ -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE 0x00008000UL -+ -+#define PAX_DELTA_MMAP_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10) -+#define PAX_DELTA_STACK_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10) -+#endif - - /* When the program starts, a1 contains a pointer to a function to be - registered with atexit, as per the SVR4 ABI. A value of 0 means we -@@ -126,8 +133,4 @@ int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs); - extern void elf_set_personality(const struct elf32_hdr *); - #define SET_PERSONALITY(ex) elf_set_personality(&(ex)) - --struct mm_struct; --extern unsigned long arch_randomize_brk(struct mm_struct *mm); --#define arch_randomize_brk arch_randomize_brk -- - #endif -diff --git a/arch/arm/include/asm/kmap_types.h b/arch/arm/include/asm/kmap_types.h -index e51b1e8..32a3113 100644 ---- a/arch/arm/include/asm/kmap_types.h -+++ b/arch/arm/include/asm/kmap_types.h -@@ -21,6 +21,7 @@ enum km_type { - KM_L1_CACHE, - KM_L2_CACHE, - KM_KDB, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff --git a/arch/arm/include/asm/outercache.h b/arch/arm/include/asm/outercache.h -index 53426c6..c7baff3 100644 ---- a/arch/arm/include/asm/outercache.h -+++ b/arch/arm/include/asm/outercache.h -@@ -35,7 +35,7 @@ struct outer_cache_fns { - #endif - void (*set_debug)(unsigned long); - void (*resume)(void); --}; -+} __no_const; - - #ifdef CONFIG_OUTER_CACHE - -diff --git a/arch/arm/include/asm/page.h b/arch/arm/include/asm/page.h -index 5838361..da6e813 100644 ---- a/arch/arm/include/asm/page.h -+++ b/arch/arm/include/asm/page.h -@@ -123,7 +123,7 @@ struct cpu_user_fns { - void (*cpu_clear_user_highpage)(struct page *page, unsigned long vaddr); - void (*cpu_copy_user_highpage)(struct page *to, struct page *from, - unsigned long vaddr, struct vm_area_struct *vma); --}; -+} __no_const; - - #ifdef MULTI_USER - extern struct cpu_user_fns cpu_user; -diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h -index 943504f..bf8d667 100644 ---- a/arch/arm/include/asm/pgalloc.h -+++ b/arch/arm/include/asm/pgalloc.h -@@ -43,6 +43,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) - set_pud(pud, __pud(__pa(pmd) | PMD_TYPE_TABLE)); - } - -+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) -+{ -+ pud_populate(mm, pud, pmd); -+} -+ - #else /* !CONFIG_ARM_LPAE */ - - /* -@@ -51,6 +56,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) - #define pmd_alloc_one(mm,addr) ({ BUG(); ((pmd_t *)2); }) - #define pmd_free(mm, pmd) do { } while (0) - #define pud_populate(mm,pmd,pte) BUG() -+#define pud_populate_kernel(mm,pmd,pte) BUG() - - #endif /* CONFIG_ARM_LPAE */ - -diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h -index 0f04d84..2be5648 100644 ---- a/arch/arm/include/asm/thread_info.h -+++ b/arch/arm/include/asm/thread_info.h -@@ -148,6 +148,12 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *, - #define TIF_NOTIFY_RESUME 2 /* callback before returning to user */ - #define TIF_SYSCALL_TRACE 8 - #define TIF_SYSCALL_AUDIT 9 -+ -+/* within 8 bits of TIF_SYSCALL_TRACE -+ to meet flexible second operand requirements -+*/ -+#define TIF_GRSEC_SETXID 10 -+ - #define TIF_POLLING_NRFLAG 16 - #define TIF_USING_IWMMXT 17 - #define TIF_MEMDIE 18 /* is terminating due to OOM killer */ -@@ -163,9 +169,11 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *, - #define _TIF_USING_IWMMXT (1 << TIF_USING_IWMMXT) - #define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK) - #define _TIF_SECCOMP (1 << TIF_SECCOMP) -+#define _TIF_GRSEC_SETXID (1 << TIF_GRSEC_SETXID) - - /* Checks for any syscall work in entry-common.S */ --#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT) -+#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \ -+ _TIF_GRSEC_SETXID) - - /* - * Change these and you break ASM code in entry-common.S -diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h -index 71f6536..602f279 100644 ---- a/arch/arm/include/asm/uaccess.h -+++ b/arch/arm/include/asm/uaccess.h -@@ -22,6 +22,8 @@ - #define VERIFY_READ 0 - #define VERIFY_WRITE 1 - -+extern void check_object_size(const void *ptr, unsigned long n, bool to); -+ - /* - * The exception table consists of pairs of addresses: the first is the - * address of an instruction that is allowed to fault, and the second is -@@ -387,8 +389,23 @@ do { \ - - - #ifdef CONFIG_MMU --extern unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n); --extern unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n); -+extern unsigned long __must_check ___copy_from_user(void *to, const void __user *from, unsigned long n); -+extern unsigned long __must_check ___copy_to_user(void __user *to, const void *from, unsigned long n); -+ -+static inline unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n) -+{ -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); -+ return ___copy_from_user(to, from, n); -+} -+ -+static inline unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n) -+{ -+ if (!__builtin_constant_p(n)) -+ check_object_size(from, n, true); -+ return ___copy_to_user(to, from, n); -+} -+ - extern unsigned long __must_check __copy_to_user_std(void __user *to, const void *from, unsigned long n); - extern unsigned long __must_check __clear_user(void __user *addr, unsigned long n); - extern unsigned long __must_check __clear_user_std(void __user *addr, unsigned long n); -@@ -403,6 +420,9 @@ extern unsigned long __must_check __strnlen_user(const char __user *s, long n); - - static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - if (access_ok(VERIFY_READ, from, n)) - n = __copy_from_user(to, from, n); - else /* security hole - plug it */ -@@ -412,6 +432,9 @@ static inline unsigned long __must_check copy_from_user(void *to, const void __u - - static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - if (access_ok(VERIFY_WRITE, to, n)) - n = __copy_to_user(to, from, n); - return n; -diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c -index b57c75e..ed2d6b2 100644 ---- a/arch/arm/kernel/armksyms.c -+++ b/arch/arm/kernel/armksyms.c -@@ -94,8 +94,8 @@ EXPORT_SYMBOL(__strncpy_from_user); - #ifdef CONFIG_MMU - EXPORT_SYMBOL(copy_page); - --EXPORT_SYMBOL(__copy_from_user); --EXPORT_SYMBOL(__copy_to_user); -+EXPORT_SYMBOL(___copy_from_user); -+EXPORT_SYMBOL(___copy_to_user); - EXPORT_SYMBOL(__clear_user); - - EXPORT_SYMBOL(__get_user_1); -diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c -index 2b7b017..c380fa2 100644 ---- a/arch/arm/kernel/process.c -+++ b/arch/arm/kernel/process.c -@@ -28,7 +28,6 @@ - #include <linux/tick.h> - #include <linux/utsname.h> - #include <linux/uaccess.h> --#include <linux/random.h> - #include <linux/hw_breakpoint.h> - #include <linux/cpuidle.h> - -@@ -275,9 +274,10 @@ void machine_power_off(void) - machine_shutdown(); - if (pm_power_off) - pm_power_off(); -+ BUG(); - } - --void machine_restart(char *cmd) -+__noreturn void machine_restart(char *cmd) - { - machine_shutdown(); - -@@ -519,12 +519,6 @@ unsigned long get_wchan(struct task_struct *p) - return 0; - } - --unsigned long arch_randomize_brk(struct mm_struct *mm) --{ -- unsigned long range_end = mm->brk + 0x02000000; -- return randomize_range(mm->brk, range_end, 0) ? : mm->brk; --} -- - #ifdef CONFIG_MMU - /* - * The vectors page is always readable from user space for the -diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c -index 9650c14..ae30cdd 100644 ---- a/arch/arm/kernel/ptrace.c -+++ b/arch/arm/kernel/ptrace.c -@@ -906,10 +906,19 @@ long arch_ptrace(struct task_struct *child, long request, - return ret; - } - -+#ifdef CONFIG_GRKERNSEC_SETXID -+extern void gr_delayed_cred_worker(void); -+#endif -+ - asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno) - { - unsigned long ip; - -+#ifdef CONFIG_GRKERNSEC_SETXID -+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID))) -+ gr_delayed_cred_worker(); -+#endif -+ - if (why) - audit_syscall_exit(regs); - else -diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c -index ebfac78..cbea9c0 100644 ---- a/arch/arm/kernel/setup.c -+++ b/arch/arm/kernel/setup.c -@@ -111,13 +111,13 @@ struct processor processor __read_mostly; - struct cpu_tlb_fns cpu_tlb __read_mostly; - #endif - #ifdef MULTI_USER --struct cpu_user_fns cpu_user __read_mostly; -+struct cpu_user_fns cpu_user __read_only; - #endif - #ifdef MULTI_CACHE --struct cpu_cache_fns cpu_cache __read_mostly; -+struct cpu_cache_fns cpu_cache __read_only; - #endif - #ifdef CONFIG_OUTER_CACHE --struct outer_cache_fns outer_cache __read_mostly; -+struct outer_cache_fns outer_cache __read_only; - EXPORT_SYMBOL(outer_cache); - #endif - -diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c -index 63d402f..db1d714 100644 ---- a/arch/arm/kernel/traps.c -+++ b/arch/arm/kernel/traps.c -@@ -264,6 +264,8 @@ static int __die(const char *str, int err, struct thread_info *thread, struct pt - - static DEFINE_RAW_SPINLOCK(die_lock); - -+extern void gr_handle_kernel_exploit(void); -+ - /* - * This function is protected against re-entrancy. - */ -@@ -296,6 +298,9 @@ void die(const char *str, struct pt_regs *regs, int err) - panic("Fatal exception in interrupt"); - if (panic_on_oops) - panic("Fatal exception"); -+ -+ gr_handle_kernel_exploit(); -+ - if (ret != NOTIFY_STOP) - do_exit(SIGSEGV); - } -diff --git a/arch/arm/lib/copy_from_user.S b/arch/arm/lib/copy_from_user.S -index 66a477a..bee61d3 100644 ---- a/arch/arm/lib/copy_from_user.S -+++ b/arch/arm/lib/copy_from_user.S -@@ -16,7 +16,7 @@ - /* - * Prototype: - * -- * size_t __copy_from_user(void *to, const void *from, size_t n) -+ * size_t ___copy_from_user(void *to, const void *from, size_t n) - * - * Purpose: - * -@@ -84,11 +84,11 @@ - - .text - --ENTRY(__copy_from_user) -+ENTRY(___copy_from_user) - - #include "copy_template.S" - --ENDPROC(__copy_from_user) -+ENDPROC(___copy_from_user) - - .pushsection .fixup,"ax" - .align 0 -diff --git a/arch/arm/lib/copy_page.S b/arch/arm/lib/copy_page.S -index 6ee2f67..d1cce76 100644 ---- a/arch/arm/lib/copy_page.S -+++ b/arch/arm/lib/copy_page.S -@@ -10,6 +10,7 @@ - * ASM optimised string functions - */ - #include <linux/linkage.h> -+#include <linux/const.h> - #include <asm/assembler.h> - #include <asm/asm-offsets.h> - #include <asm/cache.h> -diff --git a/arch/arm/lib/copy_to_user.S b/arch/arm/lib/copy_to_user.S -index d066df6..df28194 100644 ---- a/arch/arm/lib/copy_to_user.S -+++ b/arch/arm/lib/copy_to_user.S -@@ -16,7 +16,7 @@ - /* - * Prototype: - * -- * size_t __copy_to_user(void *to, const void *from, size_t n) -+ * size_t ___copy_to_user(void *to, const void *from, size_t n) - * - * Purpose: - * -@@ -88,11 +88,11 @@ - .text - - ENTRY(__copy_to_user_std) --WEAK(__copy_to_user) -+WEAK(___copy_to_user) - - #include "copy_template.S" - --ENDPROC(__copy_to_user) -+ENDPROC(___copy_to_user) - ENDPROC(__copy_to_user_std) - - .pushsection .fixup,"ax" -diff --git a/arch/arm/lib/uaccess.S b/arch/arm/lib/uaccess.S -index 5c908b1..e712687 100644 ---- a/arch/arm/lib/uaccess.S -+++ b/arch/arm/lib/uaccess.S -@@ -20,7 +20,7 @@ - - #define PAGE_SHIFT 12 - --/* Prototype: int __copy_to_user(void *to, const char *from, size_t n) -+/* Prototype: int ___copy_to_user(void *to, const char *from, size_t n) - * Purpose : copy a block to user memory from kernel memory - * Params : to - user memory - * : from - kernel memory -@@ -40,7 +40,7 @@ USER( TUSER( strgtb) r3, [r0], #1) @ May fault - sub r2, r2, ip - b .Lc2u_dest_aligned - --ENTRY(__copy_to_user) -+ENTRY(___copy_to_user) - stmfd sp!, {r2, r4 - r7, lr} - cmp r2, #4 - blt .Lc2u_not_enough -@@ -278,14 +278,14 @@ USER( TUSER( strgeb) r3, [r0], #1) @ May fault - ldrgtb r3, [r1], #0 - USER( TUSER( strgtb) r3, [r0], #1) @ May fault - b .Lc2u_finished --ENDPROC(__copy_to_user) -+ENDPROC(___copy_to_user) - - .pushsection .fixup,"ax" - .align 0 - 9001: ldmfd sp!, {r0, r4 - r7, pc} - .popsection - --/* Prototype: unsigned long __copy_from_user(void *to,const void *from,unsigned long n); -+/* Prototype: unsigned long ___copy_from_user(void *to,const void *from,unsigned long n); - * Purpose : copy a block from user memory to kernel memory - * Params : to - kernel memory - * : from - user memory -@@ -304,7 +304,7 @@ USER( TUSER( ldrgtb) r3, [r1], #1) @ May fault - sub r2, r2, ip - b .Lcfu_dest_aligned - --ENTRY(__copy_from_user) -+ENTRY(___copy_from_user) - stmfd sp!, {r0, r2, r4 - r7, lr} - cmp r2, #4 - blt .Lcfu_not_enough -@@ -544,7 +544,7 @@ USER( TUSER( ldrgeb) r3, [r1], #1) @ May fault - USER( TUSER( ldrgtb) r3, [r1], #1) @ May fault - strgtb r3, [r0], #1 - b .Lcfu_finished --ENDPROC(__copy_from_user) -+ENDPROC(___copy_from_user) - - .pushsection .fixup,"ax" - .align 0 -diff --git a/arch/arm/lib/uaccess_with_memcpy.c b/arch/arm/lib/uaccess_with_memcpy.c -index 025f742..8432b08 100644 ---- a/arch/arm/lib/uaccess_with_memcpy.c -+++ b/arch/arm/lib/uaccess_with_memcpy.c -@@ -104,7 +104,7 @@ out: - } - - unsigned long --__copy_to_user(void __user *to, const void *from, unsigned long n) -+___copy_to_user(void __user *to, const void *from, unsigned long n) - { - /* - * This test is stubbed out of the main function above to keep -diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c -index 518091c..eae9a76 100644 ---- a/arch/arm/mach-omap2/board-n8x0.c -+++ b/arch/arm/mach-omap2/board-n8x0.c -@@ -596,7 +596,7 @@ static int n8x0_menelaus_late_init(struct device *dev) - } - #endif - --static struct menelaus_platform_data n8x0_menelaus_platform_data __initdata = { -+static struct menelaus_platform_data n8x0_menelaus_platform_data __initconst = { - .late_init = n8x0_menelaus_late_init, - }; - -diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c -index 5bb4835..4760f68 100644 ---- a/arch/arm/mm/fault.c -+++ b/arch/arm/mm/fault.c -@@ -174,6 +174,13 @@ __do_user_fault(struct task_struct *tsk, unsigned long addr, - } - #endif - -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (fsr & FSR_LNX_PF) { -+ pax_report_fault(regs, (void *)regs->ARM_pc, (void *)regs->ARM_sp); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ - tsk->thread.address = addr; - tsk->thread.error_code = fsr; - tsk->thread.trap_no = 14; -@@ -397,6 +404,33 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) - } - #endif /* CONFIG_MMU */ - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) -+{ -+ long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 20; i++) { -+ unsigned char c; -+ if (get_user(c, (__force unsigned char __user *)pc+i)) -+ printk(KERN_CONT "?? "); -+ else -+ printk(KERN_CONT "%02x ", c); -+ } -+ printk("\n"); -+ -+ printk(KERN_ERR "PAX: bytes at SP-4: "); -+ for (i = -1; i < 20; i++) { -+ unsigned long c; -+ if (get_user(c, (__force unsigned long __user *)sp+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08lx ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - /* - * First Level Translation Fault Handler - * -@@ -577,6 +611,20 @@ do_PrefetchAbort(unsigned long addr, unsigned int ifsr, struct pt_regs *regs) - const struct fsr_info *inf = ifsr_info + fsr_fs(ifsr); - struct siginfo info; - -+#ifdef CONFIG_PAX_REFCOUNT -+ if (fsr_fs(ifsr) == 2) { -+ unsigned int bkpt; -+ -+ if (!probe_kernel_address((unsigned int *)addr, bkpt) && bkpt == 0xe12f1073) { -+ current->thread.error_code = ifsr; -+ current->thread.trap_no = 0; -+ pax_report_refcount_overflow(regs); -+ fixup_exception(regs); -+ return; -+ } -+ } -+#endif -+ - if (!inf->fn(addr, ifsr | FSR_LNX_PF, regs)) - return; - -diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c -index ce8cb19..3ec539d 100644 ---- a/arch/arm/mm/mmap.c -+++ b/arch/arm/mm/mmap.c -@@ -93,6 +93,10 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, - if (len > TASK_SIZE) - return -ENOMEM; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - if (do_align) - addr = COLOUR_ALIGN(addr, pgoff); -@@ -100,15 +104,14 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, - addr = PAGE_ALIGN(addr); - - vma = find_vma(mm, addr); -- if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len)) - return addr; - } - if (len > mm->cached_hole_size) { -- start_addr = addr = mm->free_area_cache; -+ start_addr = addr = mm->free_area_cache; - } else { -- start_addr = addr = mm->mmap_base; -- mm->cached_hole_size = 0; -+ start_addr = addr = mm->mmap_base; -+ mm->cached_hole_size = 0; - } - - full_search: -@@ -124,14 +127,14 @@ full_search: - * Start a new search - just in case we missed - * some holes. - */ -- if (start_addr != TASK_UNMAPPED_BASE) { -- start_addr = addr = TASK_UNMAPPED_BASE; -+ if (start_addr != mm->mmap_base) { -+ start_addr = addr = mm->mmap_base; - mm->cached_hole_size = 0; - goto full_search; - } - return -ENOMEM; - } -- if (!vma || addr + len <= vma->vm_start) { -+ if (check_heap_stack_gap(vma, addr, len)) { - /* - * Remember the place where we stopped the search: - */ -@@ -266,10 +269,22 @@ void arch_pick_mmap_layout(struct mm_struct *mm) - - if (mmap_is_legacy()) { - mm->mmap_base = TASK_UNMAPPED_BASE + random_factor; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } else { - mm->mmap_base = mmap_base(random_factor); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area_topdown; - mm->unmap_area = arch_unmap_area_topdown; - } -diff --git a/arch/arm/plat-orion/include/plat/addr-map.h b/arch/arm/plat-orion/include/plat/addr-map.h -index fd556f7..af2e7d2 100644 ---- a/arch/arm/plat-orion/include/plat/addr-map.h -+++ b/arch/arm/plat-orion/include/plat/addr-map.h -@@ -26,7 +26,7 @@ struct orion_addr_map_cfg { - value in bridge_virt_base */ - void __iomem *(*win_cfg_base) (const struct orion_addr_map_cfg *cfg, - const int win); --}; -+} __no_const; - - /* - * Information needed to setup one address mapping. -diff --git a/arch/arm/plat-samsung/include/plat/dma-ops.h b/arch/arm/plat-samsung/include/plat/dma-ops.h -index 71a6827..e7fbc23 100644 ---- a/arch/arm/plat-samsung/include/plat/dma-ops.h -+++ b/arch/arm/plat-samsung/include/plat/dma-ops.h -@@ -43,7 +43,7 @@ struct samsung_dma_ops { - int (*started)(unsigned ch); - int (*flush)(unsigned ch); - int (*stop)(unsigned ch); --}; -+} __no_const; - - extern void *samsung_dmadev_get_ops(void); - extern void *s3c_dma_get_ops(void); -diff --git a/arch/arm/plat-samsung/include/plat/ehci.h b/arch/arm/plat-samsung/include/plat/ehci.h -index 5f28cae..3d23723 100644 ---- a/arch/arm/plat-samsung/include/plat/ehci.h -+++ b/arch/arm/plat-samsung/include/plat/ehci.h -@@ -14,7 +14,7 @@ - struct s5p_ehci_platdata { - int (*phy_init)(struct platform_device *pdev, int type); - int (*phy_exit)(struct platform_device *pdev, int type); --}; -+} __no_const; - - extern void s5p_ehci_set_platdata(struct s5p_ehci_platdata *pd); - -diff --git a/arch/avr32/include/asm/cache.h b/arch/avr32/include/asm/cache.h -index c3a58a1..78fbf54 100644 ---- a/arch/avr32/include/asm/cache.h -+++ b/arch/avr32/include/asm/cache.h -@@ -1,8 +1,10 @@ - #ifndef __ASM_AVR32_CACHE_H - #define __ASM_AVR32_CACHE_H - -+#include <linux/const.h> -+ - #define L1_CACHE_SHIFT 5 --#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - /* - * Memory returned by kmalloc() may be used for DMA, so we must make -diff --git a/arch/avr32/include/asm/elf.h b/arch/avr32/include/asm/elf.h -index 3b3159b..425ea94 100644 ---- a/arch/avr32/include/asm/elf.h -+++ b/arch/avr32/include/asm/elf.h -@@ -84,8 +84,14 @@ typedef struct user_fpu_struct elf_fpregset_t; - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - --#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) -+#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE 0x00001000UL -+ -+#define PAX_DELTA_MMAP_LEN 15 -+#define PAX_DELTA_STACK_LEN 15 -+#endif - - /* This yields a mask that user programs can use to figure out what - instruction set this CPU supports. This could be done in user space, -diff --git a/arch/avr32/include/asm/kmap_types.h b/arch/avr32/include/asm/kmap_types.h -index b7f5c68..556135c 100644 ---- a/arch/avr32/include/asm/kmap_types.h -+++ b/arch/avr32/include/asm/kmap_types.h -@@ -22,7 +22,8 @@ D(10) KM_IRQ0, - D(11) KM_IRQ1, - D(12) KM_SOFTIRQ0, - D(13) KM_SOFTIRQ1, --D(14) KM_TYPE_NR -+D(14) KM_CLEARPAGE, -+D(15) KM_TYPE_NR - }; - - #undef D -diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c -index f7040a1..db9f300 100644 ---- a/arch/avr32/mm/fault.c -+++ b/arch/avr32/mm/fault.c -@@ -41,6 +41,23 @@ static inline int notify_page_fault(struct pt_regs *regs, int trap) - - int exception_trace = 1; - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 20; i++) { -+ unsigned char c; -+ if (get_user(c, (unsigned char *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%02x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - /* - * This routine handles page faults. It determines the address and the - * problem, and then passes it off to one of the appropriate routines. -@@ -156,6 +173,16 @@ bad_area: - up_read(&mm->mmap_sem); - - if (user_mode(regs)) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (mm->pax_flags & MF_PAX_PAGEEXEC) { -+ if (ecr == ECR_PROTECTION_X || ecr == ECR_TLB_MISS_X) { -+ pax_report_fault(regs, (void *)regs->pc, (void *)regs->sp); -+ do_group_exit(SIGKILL); -+ } -+ } -+#endif -+ - if (exception_trace && printk_ratelimit()) - printk("%s%s[%d]: segfault at %08lx pc %08lx " - "sp %08lx ecr %lu\n", -diff --git a/arch/blackfin/include/asm/cache.h b/arch/blackfin/include/asm/cache.h -index 568885a..f8008df 100644 ---- a/arch/blackfin/include/asm/cache.h -+++ b/arch/blackfin/include/asm/cache.h -@@ -7,6 +7,7 @@ - #ifndef __ARCH_BLACKFIN_CACHE_H - #define __ARCH_BLACKFIN_CACHE_H - -+#include <linux/const.h> - #include <linux/linkage.h> /* for asmlinkage */ - - /* -@@ -14,7 +15,7 @@ - * Blackfin loads 32 bytes for cache - */ - #define L1_CACHE_SHIFT 5 --#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - #define SMP_CACHE_BYTES L1_CACHE_BYTES - - #define ARCH_DMA_MINALIGN L1_CACHE_BYTES -diff --git a/arch/cris/include/arch-v10/arch/cache.h b/arch/cris/include/arch-v10/arch/cache.h -index aea2718..3639a60 100644 ---- a/arch/cris/include/arch-v10/arch/cache.h -+++ b/arch/cris/include/arch-v10/arch/cache.h -@@ -1,8 +1,9 @@ - #ifndef _ASM_ARCH_CACHE_H - #define _ASM_ARCH_CACHE_H - -+#include <linux/const.h> - /* Etrax 100LX have 32-byte cache-lines. */ --#define L1_CACHE_BYTES 32 - #define L1_CACHE_SHIFT 5 -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - #endif /* _ASM_ARCH_CACHE_H */ -diff --git a/arch/cris/include/arch-v32/arch/cache.h b/arch/cris/include/arch-v32/arch/cache.h -index 1de779f..336fad3 100644 ---- a/arch/cris/include/arch-v32/arch/cache.h -+++ b/arch/cris/include/arch-v32/arch/cache.h -@@ -1,11 +1,12 @@ - #ifndef _ASM_CRIS_ARCH_CACHE_H - #define _ASM_CRIS_ARCH_CACHE_H - -+#include <linux/const.h> - #include <arch/hwregs/dma.h> - - /* A cache-line is 32 bytes. */ --#define L1_CACHE_BYTES 32 - #define L1_CACHE_SHIFT 5 -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - #define __read_mostly __attribute__((__section__(".data.read_mostly"))) - -diff --git a/arch/frv/include/asm/atomic.h b/arch/frv/include/asm/atomic.h -index b86329d..6709906 100644 ---- a/arch/frv/include/asm/atomic.h -+++ b/arch/frv/include/asm/atomic.h -@@ -186,6 +186,16 @@ static inline void atomic64_dec(atomic64_t *v) - #define atomic64_cmpxchg(v, old, new) (__cmpxchg_64(old, new, &(v)->counter)) - #define atomic64_xchg(v, new) (__xchg_64(new, &(v)->counter)) - -+#define atomic64_read_unchecked(v) atomic64_read(v) -+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i)) -+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v)) -+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v)) -+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v)) -+#define atomic64_inc_unchecked(v) atomic64_inc(v) -+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v) -+#define atomic64_dec_unchecked(v) atomic64_dec(v) -+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n)) -+ - static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u) - { - int c, old; -diff --git a/arch/frv/include/asm/cache.h b/arch/frv/include/asm/cache.h -index 2797163..c2a401d 100644 ---- a/arch/frv/include/asm/cache.h -+++ b/arch/frv/include/asm/cache.h -@@ -12,10 +12,11 @@ - #ifndef __ASM_CACHE_H - #define __ASM_CACHE_H - -+#include <linux/const.h> - - /* bytes per L1 cache line */ - #define L1_CACHE_SHIFT (CONFIG_FRV_L1_CACHE_SHIFT) --#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - #define __cacheline_aligned __attribute__((aligned(L1_CACHE_BYTES))) - #define ____cacheline_aligned __attribute__((aligned(L1_CACHE_BYTES))) -diff --git a/arch/frv/include/asm/kmap_types.h b/arch/frv/include/asm/kmap_types.h -index f8e16b2..c73ff79 100644 ---- a/arch/frv/include/asm/kmap_types.h -+++ b/arch/frv/include/asm/kmap_types.h -@@ -23,6 +23,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff --git a/arch/frv/mm/elf-fdpic.c b/arch/frv/mm/elf-fdpic.c -index 385fd30..6c3d97e 100644 ---- a/arch/frv/mm/elf-fdpic.c -+++ b/arch/frv/mm/elf-fdpic.c -@@ -73,8 +73,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi - if (addr) { - addr = PAGE_ALIGN(addr); - vma = find_vma(current->mm, addr); -- if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len)) - goto success; - } - -@@ -89,7 +88,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi - for (; vma; vma = vma->vm_next) { - if (addr > limit) - break; -- if (addr + len <= vma->vm_start) -+ if (check_heap_stack_gap(vma, addr, len)) - goto success; - addr = vma->vm_end; - } -@@ -104,7 +103,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi - for (; vma; vma = vma->vm_next) { - if (addr > limit) - break; -- if (addr + len <= vma->vm_start) -+ if (check_heap_stack_gap(vma, addr, len)) - goto success; - addr = vma->vm_end; - } -diff --git a/arch/h8300/include/asm/cache.h b/arch/h8300/include/asm/cache.h -index c635028..6d9445a 100644 ---- a/arch/h8300/include/asm/cache.h -+++ b/arch/h8300/include/asm/cache.h -@@ -1,8 +1,10 @@ - #ifndef __ARCH_H8300_CACHE_H - #define __ARCH_H8300_CACHE_H - -+#include <linux/const.h> -+ - /* bytes per L1 cache line */ --#define L1_CACHE_BYTES 4 -+#define L1_CACHE_BYTES _AC(4,UL) - - /* m68k-elf-gcc 2.95.2 doesn't like these */ - -diff --git a/arch/hexagon/include/asm/cache.h b/arch/hexagon/include/asm/cache.h -index 0f01de2..d37d309 100644 ---- a/arch/hexagon/include/asm/cache.h -+++ b/arch/hexagon/include/asm/cache.h -@@ -21,9 +21,11 @@ - #ifndef __ASM_CACHE_H - #define __ASM_CACHE_H - -+#include <linux/const.h> -+ - /* Bytes per L1 cache line */ --#define L1_CACHE_SHIFT (5) --#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+#define L1_CACHE_SHIFT 5 -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - #define __cacheline_aligned __aligned(L1_CACHE_BYTES) - #define ____cacheline_aligned __aligned(L1_CACHE_BYTES) -diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h -index 7d91166..88ab87e 100644 ---- a/arch/ia64/include/asm/atomic.h -+++ b/arch/ia64/include/asm/atomic.h -@@ -208,6 +208,16 @@ atomic64_add_negative (__s64 i, atomic64_t *v) - #define atomic64_inc(v) atomic64_add(1, (v)) - #define atomic64_dec(v) atomic64_sub(1, (v)) - -+#define atomic64_read_unchecked(v) atomic64_read(v) -+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i)) -+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v)) -+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v)) -+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v)) -+#define atomic64_inc_unchecked(v) atomic64_inc(v) -+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v) -+#define atomic64_dec_unchecked(v) atomic64_dec(v) -+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n)) -+ - /* Atomic operations are already serializing */ - #define smp_mb__before_atomic_dec() barrier() - #define smp_mb__after_atomic_dec() barrier() -diff --git a/arch/ia64/include/asm/cache.h b/arch/ia64/include/asm/cache.h -index 988254a..e1ee885 100644 ---- a/arch/ia64/include/asm/cache.h -+++ b/arch/ia64/include/asm/cache.h -@@ -1,6 +1,7 @@ - #ifndef _ASM_IA64_CACHE_H - #define _ASM_IA64_CACHE_H - -+#include <linux/const.h> - - /* - * Copyright (C) 1998-2000 Hewlett-Packard Co -@@ -9,7 +10,7 @@ - - /* Bytes per L1 (data) cache line. */ - #define L1_CACHE_SHIFT CONFIG_IA64_L1_CACHE_SHIFT --#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - #ifdef CONFIG_SMP - # define SMP_CACHE_SHIFT L1_CACHE_SHIFT -diff --git a/arch/ia64/include/asm/elf.h b/arch/ia64/include/asm/elf.h -index b5298eb..67c6e62 100644 ---- a/arch/ia64/include/asm/elf.h -+++ b/arch/ia64/include/asm/elf.h -@@ -42,6 +42,13 @@ - */ - #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x800000000UL) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (current->personality == PER_LINUX32 ? 0x08048000UL : 0x4000000000000000UL) -+ -+#define PAX_DELTA_MMAP_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13) -+#define PAX_DELTA_STACK_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13) -+#endif -+ - #define PT_IA_64_UNWIND 0x70000001 - - /* IA-64 relocations: */ -diff --git a/arch/ia64/include/asm/pgalloc.h b/arch/ia64/include/asm/pgalloc.h -index 96a8d92..617a1cf 100644 ---- a/arch/ia64/include/asm/pgalloc.h -+++ b/arch/ia64/include/asm/pgalloc.h -@@ -39,6 +39,12 @@ pgd_populate(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud) - pgd_val(*pgd_entry) = __pa(pud); - } - -+static inline void -+pgd_populate_kernel(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud) -+{ -+ pgd_populate(mm, pgd_entry, pud); -+} -+ - static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) - { - return quicklist_alloc(0, GFP_KERNEL, NULL); -@@ -57,6 +63,12 @@ pud_populate(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd) - pud_val(*pud_entry) = __pa(pmd); - } - -+static inline void -+pud_populate_kernel(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd) -+{ -+ pud_populate(mm, pud_entry, pmd); -+} -+ - static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) - { - return quicklist_alloc(0, GFP_KERNEL, NULL); -diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h -index 815810c..d60bd4c 100644 ---- a/arch/ia64/include/asm/pgtable.h -+++ b/arch/ia64/include/asm/pgtable.h -@@ -12,7 +12,7 @@ - * David Mosberger-Tang <davidm(a)hpl.hp.com> - */ - -- -+#include <linux/const.h> - #include <asm/mman.h> - #include <asm/page.h> - #include <asm/processor.h> -@@ -142,6 +142,17 @@ - #define PAGE_READONLY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) - #define PAGE_COPY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) - #define PAGE_COPY_EXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RX) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+# define PAGE_SHARED_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RW) -+# define PAGE_READONLY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) -+# define PAGE_COPY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) -+#else -+# define PAGE_SHARED_NOEXEC PAGE_SHARED -+# define PAGE_READONLY_NOEXEC PAGE_READONLY -+# define PAGE_COPY_NOEXEC PAGE_COPY -+#endif -+ - #define PAGE_GATE __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_X_RX) - #define PAGE_KERNEL __pgprot(__DIRTY_BITS | _PAGE_PL_0 | _PAGE_AR_RWX) - #define PAGE_KERNELRX __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_RX) -diff --git a/arch/ia64/include/asm/spinlock.h b/arch/ia64/include/asm/spinlock.h -index 54ff557..70c88b7 100644 ---- a/arch/ia64/include/asm/spinlock.h -+++ b/arch/ia64/include/asm/spinlock.h -@@ -71,7 +71,7 @@ static __always_inline void __ticket_spin_unlock(arch_spinlock_t *lock) - unsigned short *p = (unsigned short *)&lock->lock + 1, tmp; - - asm volatile ("ld2.bias %0=[%1]" : "=r"(tmp) : "r"(p)); -- ACCESS_ONCE(*p) = (tmp + 2) & ~1; -+ ACCESS_ONCE_RW(*p) = (tmp + 2) & ~1; - } - - static __always_inline void __ticket_spin_unlock_wait(arch_spinlock_t *lock) -diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h -index 449c8c0..432a3d2 100644 ---- a/arch/ia64/include/asm/uaccess.h -+++ b/arch/ia64/include/asm/uaccess.h -@@ -257,7 +257,7 @@ __copy_from_user (void *to, const void __user *from, unsigned long count) - const void *__cu_from = (from); \ - long __cu_len = (n); \ - \ -- if (__access_ok(__cu_to, __cu_len, get_fs())) \ -+ if (__cu_len > 0 && __cu_len <= INT_MAX && __access_ok(__cu_to, __cu_len, get_fs())) \ - __cu_len = __copy_user(__cu_to, (__force void __user *) __cu_from, __cu_len); \ - __cu_len; \ - }) -@@ -269,7 +269,7 @@ __copy_from_user (void *to, const void __user *from, unsigned long count) - long __cu_len = (n); \ - \ - __chk_user_ptr(__cu_from); \ -- if (__access_ok(__cu_from, __cu_len, get_fs())) \ -+ if (__cu_len > 0 && __cu_len <= INT_MAX && __access_ok(__cu_from, __cu_len, get_fs())) \ - __cu_len = __copy_user((__force void __user *) __cu_to, __cu_from, __cu_len); \ - __cu_len; \ - }) -diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c -index 24603be..948052d 100644 ---- a/arch/ia64/kernel/module.c -+++ b/arch/ia64/kernel/module.c -@@ -307,8 +307,7 @@ plt_target (struct plt_entry *plt) - void - module_free (struct module *mod, void *module_region) - { -- if (mod && mod->arch.init_unw_table && -- module_region == mod->module_init) { -+ if (mod && mod->arch.init_unw_table && module_region == mod->module_init_rx) { - unw_remove_unwind_table(mod->arch.init_unw_table); - mod->arch.init_unw_table = NULL; - } -@@ -494,15 +493,39 @@ module_frob_arch_sections (Elf_Ehdr *ehdr, Elf_Shdr *sechdrs, char *secstrings, - } - - static inline int -+in_init_rx (const struct module *mod, uint64_t addr) -+{ -+ return addr - (uint64_t) mod->module_init_rx < mod->init_size_rx; -+} -+ -+static inline int -+in_init_rw (const struct module *mod, uint64_t addr) -+{ -+ return addr - (uint64_t) mod->module_init_rw < mod->init_size_rw; -+} -+ -+static inline int - in_init (const struct module *mod, uint64_t addr) - { -- return addr - (uint64_t) mod->module_init < mod->init_size; -+ return in_init_rx(mod, addr) || in_init_rw(mod, addr); -+} -+ -+static inline int -+in_core_rx (const struct module *mod, uint64_t addr) -+{ -+ return addr - (uint64_t) mod->module_core_rx < mod->core_size_rx; -+} -+ -+static inline int -+in_core_rw (const struct module *mod, uint64_t addr) -+{ -+ return addr - (uint64_t) mod->module_core_rw < mod->core_size_rw; - } - - static inline int - in_core (const struct module *mod, uint64_t addr) - { -- return addr - (uint64_t) mod->module_core < mod->core_size; -+ return in_core_rx(mod, addr) || in_core_rw(mod, addr); - } - - static inline int -@@ -685,7 +708,14 @@ do_reloc (struct module *mod, uint8_t r_type, Elf64_Sym *sym, uint64_t addend, - break; - - case RV_BDREL: -- val -= (uint64_t) (in_init(mod, val) ? mod->module_init : mod->module_core); -+ if (in_init_rx(mod, val)) -+ val -= (uint64_t) mod->module_init_rx; -+ else if (in_init_rw(mod, val)) -+ val -= (uint64_t) mod->module_init_rw; -+ else if (in_core_rx(mod, val)) -+ val -= (uint64_t) mod->module_core_rx; -+ else if (in_core_rw(mod, val)) -+ val -= (uint64_t) mod->module_core_rw; - break; - - case RV_LTV: -@@ -820,15 +850,15 @@ apply_relocate_add (Elf64_Shdr *sechdrs, const char *strtab, unsigned int symind - * addresses have been selected... - */ - uint64_t gp; -- if (mod->core_size > MAX_LTOFF) -+ if (mod->core_size_rx + mod->core_size_rw > MAX_LTOFF) - /* - * This takes advantage of fact that SHF_ARCH_SMALL gets allocated - * at the end of the module. - */ -- gp = mod->core_size - MAX_LTOFF / 2; -+ gp = mod->core_size_rx + mod->core_size_rw - MAX_LTOFF / 2; - else -- gp = mod->core_size / 2; -- gp = (uint64_t) mod->module_core + ((gp + 7) & -8); -+ gp = (mod->core_size_rx + mod->core_size_rw) / 2; -+ gp = (uint64_t) mod->module_core_rx + ((gp + 7) & -8); - mod->arch.gp = gp; - DEBUGP("%s: placing gp at 0x%lx\n", __func__, gp); - } -diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c -index 609d500..7dde2a8 100644 ---- a/arch/ia64/kernel/sys_ia64.c -+++ b/arch/ia64/kernel/sys_ia64.c -@@ -43,6 +43,13 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len - if (REGION_NUMBER(addr) == RGN_HPAGE) - addr = 0; - #endif -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ addr = mm->free_area_cache; -+ else -+#endif -+ - if (!addr) - addr = mm->free_area_cache; - -@@ -61,14 +68,14 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len - for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { - /* At this point: (!vma || addr < vma->vm_end). */ - if (TASK_SIZE - len < addr || RGN_MAP_LIMIT - len < REGION_OFFSET(addr)) { -- if (start_addr != TASK_UNMAPPED_BASE) { -+ if (start_addr != mm->mmap_base) { - /* Start a new search --- just in case we missed some holes. */ -- addr = TASK_UNMAPPED_BASE; -+ addr = mm->mmap_base; - goto full_search; - } - return -ENOMEM; - } -- if (!vma || addr + len <= vma->vm_start) { -+ if (check_heap_stack_gap(vma, addr, len)) { - /* Remember the address where we stopped this search: */ - mm->free_area_cache = addr + len; - return addr; -diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S -index 0ccb28f..8992469 100644 ---- a/arch/ia64/kernel/vmlinux.lds.S -+++ b/arch/ia64/kernel/vmlinux.lds.S -@@ -198,7 +198,7 @@ SECTIONS { - /* Per-cpu data: */ - . = ALIGN(PERCPU_PAGE_SIZE); - PERCPU_VADDR(SMP_CACHE_BYTES, PERCPU_ADDR, :percpu) -- __phys_per_cpu_start = __per_cpu_load; -+ __phys_per_cpu_start = per_cpu_load; - /* - * ensure percpu data fits - * into percpu page size -diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c -index 02d29c2..ea893df 100644 ---- a/arch/ia64/mm/fault.c -+++ b/arch/ia64/mm/fault.c -@@ -72,6 +72,23 @@ mapped_kernel_page_is_present (unsigned long address) - return pte_present(pte); - } - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 8; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - void __kprobes - ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *regs) - { -@@ -145,9 +162,23 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re - mask = ( (((isr >> IA64_ISR_X_BIT) & 1UL) << VM_EXEC_BIT) - | (((isr >> IA64_ISR_W_BIT) & 1UL) << VM_WRITE_BIT)); - -- if ((vma->vm_flags & mask) != mask) -+ if ((vma->vm_flags & mask) != mask) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!(vma->vm_flags & VM_EXEC) && (mask & VM_EXEC)) { -+ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->cr_iip) -+ goto bad_area; -+ -+ up_read(&mm->mmap_sem); -+ pax_report_fault(regs, (void *)regs->cr_iip, (void *)regs->r12); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ - goto bad_area; - -+ } -+ - /* - * If for any reason at all we couldn't handle the fault, make - * sure we exit gracefully rather than endlessly redo the -diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c -index 5ca674b..e0e1b70 100644 ---- a/arch/ia64/mm/hugetlbpage.c -+++ b/arch/ia64/mm/hugetlbpage.c -@@ -171,7 +171,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u - /* At this point: (!vmm || addr < vmm->vm_end). */ - if (REGION_OFFSET(addr) + len > RGN_MAP_LIMIT) - return -ENOMEM; -- if (!vmm || (addr + len) <= vmm->vm_start) -+ if (check_heap_stack_gap(vmm, addr, len)) - return addr; - addr = ALIGN(vmm->vm_end, HPAGE_SIZE); - } -diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c -index 0eab454..bd794f2 100644 ---- a/arch/ia64/mm/init.c -+++ b/arch/ia64/mm/init.c -@@ -120,6 +120,19 @@ ia64_init_addr_space (void) - vma->vm_start = current->thread.rbs_bot & PAGE_MASK; - vma->vm_end = vma->vm_start + PAGE_SIZE; - vma->vm_flags = VM_DATA_DEFAULT_FLAGS|VM_GROWSUP|VM_ACCOUNT; -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (current->mm->pax_flags & MF_PAX_PAGEEXEC) { -+ vma->vm_flags &= ~VM_EXEC; -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (current->mm->pax_flags & MF_PAX_MPROTECT) -+ vma->vm_flags &= ~VM_MAYEXEC; -+#endif -+ -+ } -+#endif -+ - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); - down_write(&current->mm->mmap_sem); - if (insert_vm_struct(current->mm, vma)) { -diff --git a/arch/m32r/include/asm/cache.h b/arch/m32r/include/asm/cache.h -index 40b3ee9..8c2c112 100644 ---- a/arch/m32r/include/asm/cache.h -+++ b/arch/m32r/include/asm/cache.h -@@ -1,8 +1,10 @@ - #ifndef _ASM_M32R_CACHE_H - #define _ASM_M32R_CACHE_H - -+#include <linux/const.h> -+ - /* L1 cache line size */ - #define L1_CACHE_SHIFT 4 --#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - #endif /* _ASM_M32R_CACHE_H */ -diff --git a/arch/m32r/lib/usercopy.c b/arch/m32r/lib/usercopy.c -index 82abd15..d95ae5d 100644 ---- a/arch/m32r/lib/usercopy.c -+++ b/arch/m32r/lib/usercopy.c -@@ -14,6 +14,9 @@ - unsigned long - __generic_copy_to_user(void __user *to, const void *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - prefetch(from); - if (access_ok(VERIFY_WRITE, to, n)) - __copy_user(to,from,n); -@@ -23,6 +26,9 @@ __generic_copy_to_user(void __user *to, const void *from, unsigned long n) - unsigned long - __generic_copy_from_user(void *to, const void __user *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - prefetchw(to); - if (access_ok(VERIFY_READ, from, n)) - __copy_user_zeroing(to,from,n); -diff --git a/arch/m68k/include/asm/cache.h b/arch/m68k/include/asm/cache.h -index 0395c51..5f26031 100644 ---- a/arch/m68k/include/asm/cache.h -+++ b/arch/m68k/include/asm/cache.h -@@ -4,9 +4,11 @@ - #ifndef __ARCH_M68K_CACHE_H - #define __ARCH_M68K_CACHE_H - -+#include <linux/const.h> -+ - /* bytes per L1 cache line */ - #define L1_CACHE_SHIFT 4 --#define L1_CACHE_BYTES (1<< L1_CACHE_SHIFT) -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - #define ARCH_DMA_MINALIGN L1_CACHE_BYTES - -diff --git a/arch/microblaze/include/asm/cache.h b/arch/microblaze/include/asm/cache.h -index 4efe96a..60e8699 100644 ---- a/arch/microblaze/include/asm/cache.h -+++ b/arch/microblaze/include/asm/cache.h -@@ -13,11 +13,12 @@ - #ifndef _ASM_MICROBLAZE_CACHE_H - #define _ASM_MICROBLAZE_CACHE_H - -+#include <linux/const.h> - #include <asm/registers.h> - - #define L1_CACHE_SHIFT 5 - /* word-granular cache in microblaze */ --#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - #define SMP_CACHE_BYTES L1_CACHE_BYTES - -diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h -index 3f4c5cb..3439c6e 100644 ---- a/arch/mips/include/asm/atomic.h -+++ b/arch/mips/include/asm/atomic.h -@@ -21,6 +21,10 @@ - #include <asm/cmpxchg.h> - #include <asm/war.h> - -+#ifdef CONFIG_GENERIC_ATOMIC64 -+#include <asm-generic/atomic64.h> -+#endif -+ - #define ATOMIC_INIT(i) { (i) } - - /* -@@ -765,6 +769,16 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u) - */ - #define atomic64_add_negative(i, v) (atomic64_add_return(i, (v)) < 0) - -+#define atomic64_read_unchecked(v) atomic64_read(v) -+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i)) -+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v)) -+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v)) -+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v)) -+#define atomic64_inc_unchecked(v) atomic64_inc(v) -+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v) -+#define atomic64_dec_unchecked(v) atomic64_dec(v) -+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n)) -+ - #endif /* CONFIG_64BIT */ - - /* -diff --git a/arch/mips/include/asm/cache.h b/arch/mips/include/asm/cache.h -index b4db69f..8f3b093 100644 ---- a/arch/mips/include/asm/cache.h -+++ b/arch/mips/include/asm/cache.h -@@ -9,10 +9,11 @@ - #ifndef _ASM_CACHE_H - #define _ASM_CACHE_H - -+#include <linux/const.h> - #include <kmalloc.h> - - #define L1_CACHE_SHIFT CONFIG_MIPS_L1_CACHE_SHIFT --#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - #define SMP_CACHE_SHIFT L1_CACHE_SHIFT - #define SMP_CACHE_BYTES L1_CACHE_BYTES -diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h -index 455c0ac..ad65fbe 100644 ---- a/arch/mips/include/asm/elf.h -+++ b/arch/mips/include/asm/elf.h -@@ -372,13 +372,16 @@ extern const char *__elf_platform; - #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) - #endif - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL) -+ -+#define PAX_DELTA_MMAP_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#define PAX_DELTA_STACK_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#endif -+ - #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 - struct linux_binprm; - extern int arch_setup_additional_pages(struct linux_binprm *bprm, - int uses_interp); - --struct mm_struct; --extern unsigned long arch_randomize_brk(struct mm_struct *mm); --#define arch_randomize_brk arch_randomize_brk -- - #endif /* _ASM_ELF_H */ -diff --git a/arch/mips/include/asm/exec.h b/arch/mips/include/asm/exec.h -index c1f6afa..38cc6e9 100644 ---- a/arch/mips/include/asm/exec.h -+++ b/arch/mips/include/asm/exec.h -@@ -12,6 +12,6 @@ - #ifndef _ASM_EXEC_H - #define _ASM_EXEC_H - --extern unsigned long arch_align_stack(unsigned long sp); -+#define arch_align_stack(x) ((x) & ~0xfUL) - - #endif /* _ASM_EXEC_H */ -diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h -index da9bd7d..91aa7ab 100644 ---- a/arch/mips/include/asm/page.h -+++ b/arch/mips/include/asm/page.h -@@ -98,7 +98,7 @@ extern void copy_user_highpage(struct page *to, struct page *from, - #ifdef CONFIG_CPU_MIPS32 - typedef struct { unsigned long pte_low, pte_high; } pte_t; - #define pte_val(x) ((x).pte_low | ((unsigned long long)(x).pte_high << 32)) -- #define __pte(x) ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; }) -+ #define __pte(x) ({ pte_t __pte = {(x), (x) >> 32}; __pte; }) - #else - typedef struct { unsigned long long pte; } pte_t; - #define pte_val(x) ((x).pte) -diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h -index 881d18b..cea38bc 100644 ---- a/arch/mips/include/asm/pgalloc.h -+++ b/arch/mips/include/asm/pgalloc.h -@@ -37,6 +37,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) - { - set_pud(pud, __pud((unsigned long)pmd)); - } -+ -+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) -+{ -+ pud_populate(mm, pud, pmd); -+} - #endif - - /* -diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h -index 0d85d8e..ec71487 100644 ---- a/arch/mips/include/asm/thread_info.h -+++ b/arch/mips/include/asm/thread_info.h -@@ -123,6 +123,8 @@ register struct thread_info *__current_thread_info __asm__("$28"); - #define TIF_32BIT_ADDR 23 /* 32-bit address space (o32/n32) */ - #define TIF_FPUBOUND 24 /* thread bound to FPU-full CPU set */ - #define TIF_LOAD_WATCH 25 /* If set, load watch registers */ -+/* li takes a 32bit immediate */ -+#define TIF_GRSEC_SETXID 29 /* update credentials on syscall entry/exit */ - #define TIF_SYSCALL_TRACE 31 /* syscall trace active */ - - #ifdef CONFIG_MIPS32_O32 -@@ -146,15 +148,18 @@ register struct thread_info *__current_thread_info __asm__("$28"); - #define _TIF_32BIT_ADDR (1<<TIF_32BIT_ADDR) - #define _TIF_FPUBOUND (1<<TIF_FPUBOUND) - #define _TIF_LOAD_WATCH (1<<TIF_LOAD_WATCH) -+#define _TIF_GRSEC_SETXID (1<<TIF_GRSEC_SETXID) -+ -+#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_GRSEC_SETXID) - - /* work to do in syscall_trace_leave() */ --#define _TIF_WORK_SYSCALL_EXIT (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT) -+#define _TIF_WORK_SYSCALL_EXIT (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_GRSEC_SETXID) - - /* work to do on interrupt/exception return */ - #define _TIF_WORK_MASK (0x0000ffef & \ - ~(_TIF_SECCOMP | _TIF_SYSCALL_AUDIT)) - /* work to do on any return to u-space */ --#define _TIF_ALLWORK_MASK (0x8000ffff & ~_TIF_SECCOMP) -+#define _TIF_ALLWORK_MASK ((0x8000ffff & ~_TIF_SECCOMP) | _TIF_GRSEC_SETXID) - - #endif /* __KERNEL__ */ - -diff --git a/arch/mips/kernel/binfmt_elfn32.c b/arch/mips/kernel/binfmt_elfn32.c -index 9fdd8bc..4bd7f1a 100644 ---- a/arch/mips/kernel/binfmt_elfn32.c -+++ b/arch/mips/kernel/binfmt_elfn32.c -@@ -50,6 +50,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; - #undef ELF_ET_DYN_BASE - #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL) -+ -+#define PAX_DELTA_MMAP_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#define PAX_DELTA_STACK_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#endif -+ - #include <asm/processor.h> - #include <linux/module.h> - #include <linux/elfcore.h> -diff --git a/arch/mips/kernel/binfmt_elfo32.c b/arch/mips/kernel/binfmt_elfo32.c -index ff44823..97f8906 100644 ---- a/arch/mips/kernel/binfmt_elfo32.c -+++ b/arch/mips/kernel/binfmt_elfo32.c -@@ -52,6 +52,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; - #undef ELF_ET_DYN_BASE - #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL) -+ -+#define PAX_DELTA_MMAP_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#define PAX_DELTA_STACK_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#endif -+ - #include <asm/processor.h> - - /* -diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c -index e9a5fd7..378809a 100644 ---- a/arch/mips/kernel/process.c -+++ b/arch/mips/kernel/process.c -@@ -480,15 +480,3 @@ unsigned long get_wchan(struct task_struct *task) - out: - return pc; - } -- --/* -- * Don't forget that the stack pointer must be aligned on a 8 bytes -- * boundary for 32-bits ABI and 16 bytes for 64-bits ABI. -- */ --unsigned long arch_align_stack(unsigned long sp) --{ -- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) -- sp -= get_random_int() & ~PAGE_MASK; -- -- return sp & ALMASK; --} -diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c -index 7c24c29..e2f1981 100644 ---- a/arch/mips/kernel/ptrace.c -+++ b/arch/mips/kernel/ptrace.c -@@ -528,6 +528,10 @@ static inline int audit_arch(void) - return arch; - } - -+#ifdef CONFIG_GRKERNSEC_SETXID -+extern void gr_delayed_cred_worker(void); -+#endif -+ - /* - * Notification of system call entry/exit - * - triggered by current->work.syscall_trace -@@ -537,6 +541,11 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs) - /* do the secure computing check first */ - secure_computing(regs->regs[2]); - -+#ifdef CONFIG_GRKERNSEC_SETXID -+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID))) -+ gr_delayed_cred_worker(); -+#endif -+ - if (!(current->ptrace & PT_PTRACED)) - goto out; - -diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S -index a632bc1..0b77c7c 100644 ---- a/arch/mips/kernel/scall32-o32.S -+++ b/arch/mips/kernel/scall32-o32.S -@@ -52,7 +52,7 @@ NESTED(handle_sys, PT_SIZE, sp) - - stack_done: - lw t0, TI_FLAGS($28) # syscall tracing enabled? -- li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT -+ li t1, _TIF_SYSCALL_WORK - and t0, t1 - bnez t0, syscall_trace_entry # -> yes - -diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S -index 3b5a5e9..e1ee86d 100644 ---- a/arch/mips/kernel/scall64-64.S -+++ b/arch/mips/kernel/scall64-64.S -@@ -54,7 +54,7 @@ NESTED(handle_sys64, PT_SIZE, sp) - - sd a3, PT_R26(sp) # save a3 for syscall restarting - -- li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT -+ li t1, _TIF_SYSCALL_WORK - LONG_L t0, TI_FLAGS($28) # syscall tracing enabled? - and t0, t1, t0 - bnez t0, syscall_trace_entry -diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S -index 6be6f70..1859577 100644 ---- a/arch/mips/kernel/scall64-n32.S -+++ b/arch/mips/kernel/scall64-n32.S -@@ -53,7 +53,7 @@ NESTED(handle_sysn32, PT_SIZE, sp) - - sd a3, PT_R26(sp) # save a3 for syscall restarting - -- li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT -+ li t1, _TIF_SYSCALL_WORK - LONG_L t0, TI_FLAGS($28) # syscall tracing enabled? - and t0, t1, t0 - bnez t0, n32_syscall_trace_entry -diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S -index 5422855..74e63a3 100644 ---- a/arch/mips/kernel/scall64-o32.S -+++ b/arch/mips/kernel/scall64-o32.S -@@ -81,7 +81,7 @@ NESTED(handle_sys, PT_SIZE, sp) - PTR 4b, bad_stack - .previous - -- li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT -+ li t1, _TIF_SYSCALL_WORK - LONG_L t0, TI_FLAGS($28) # syscall tracing enabled? - and t0, t1, t0 - bnez t0, trace_a_syscall -diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c -index c14f6df..537e729 100644 ---- a/arch/mips/mm/fault.c -+++ b/arch/mips/mm/fault.c -@@ -27,6 +27,23 @@ - #include <asm/highmem.h> /* For VMALLOC_END */ - #include <linux/kdebug.h> - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - /* - * This routine handles page faults. It determines the address, - * and the problem, and then passes it off to one of the appropriate -diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c -index 302d779..7d35bf8 100644 ---- a/arch/mips/mm/mmap.c -+++ b/arch/mips/mm/mmap.c -@@ -95,6 +95,11 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp, - do_color_align = 1; - - /* requesting a specific address */ -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(current->mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); -@@ -102,8 +107,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp, - addr = PAGE_ALIGN(addr); - - vma = find_vma(mm, addr); -- if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vmm, addr, len)) - return addr; - } - -@@ -118,7 +122,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp, - /* At this point: (!vma || addr < vma->vm_end). */ - if (TASK_SIZE - len < addr) - return -ENOMEM; -- if (!vma || addr + len <= vma->vm_start) -+ if (check_heap_stack_gap(vmm, addr, len)) - return addr; - addr = vma->vm_end; - if (do_color_align) -@@ -145,7 +149,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp, - /* make sure it can fit in the remaining address space */ - if (likely(addr > len)) { - vma = find_vma(mm, addr - len); -- if (!vma || addr <= vma->vm_start) { -+ if (check_heap_stack_gap(vmm, addr - len, len)) - /* cache the address as a hint for next time */ - return mm->free_area_cache = addr - len; - } -@@ -165,7 +169,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp, - * return with success: - */ - vma = find_vma(mm, addr); -- if (likely(!vma || addr + len <= vma->vm_start)) { -+ if (check_heap_stack_gap(vmm, addr, len)) { - /* cache the address as a hint for next time */ - return mm->free_area_cache = addr; - } -@@ -242,30 +246,3 @@ void arch_pick_mmap_layout(struct mm_struct *mm) - mm->unmap_area = arch_unmap_area_topdown; - } - } -- --static inline unsigned long brk_rnd(void) --{ -- unsigned long rnd = get_random_int(); -- -- rnd = rnd << PAGE_SHIFT; -- /* 8MB for 32bit, 256MB for 64bit */ -- if (TASK_IS_32BIT_ADDR) -- rnd = rnd & 0x7ffffful; -- else -- rnd = rnd & 0xffffffful; -- -- return rnd; --} -- --unsigned long arch_randomize_brk(struct mm_struct *mm) --{ -- unsigned long base = mm->brk; -- unsigned long ret; -- -- ret = PAGE_ALIGN(base + brk_rnd()); -- -- if (ret < mm->brk) -- return mm->brk; -- -- return ret; --} -diff --git a/arch/mn10300/proc-mn103e010/include/proc/cache.h b/arch/mn10300/proc-mn103e010/include/proc/cache.h -index 967d144..db12197 100644 ---- a/arch/mn10300/proc-mn103e010/include/proc/cache.h -+++ b/arch/mn10300/proc-mn103e010/include/proc/cache.h -@@ -11,12 +11,14 @@ - #ifndef _ASM_PROC_CACHE_H - #define _ASM_PROC_CACHE_H - -+#include <linux/const.h> -+ - /* L1 cache */ - - #define L1_CACHE_NWAYS 4 /* number of ways in caches */ - #define L1_CACHE_NENTRIES 256 /* number of entries in each way */ --#define L1_CACHE_BYTES 16 /* bytes per entry */ - #define L1_CACHE_SHIFT 4 /* shift for bytes per entry */ -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) /* bytes per entry */ - #define L1_CACHE_WAYDISP 0x1000 /* displacement of one way from the next */ - - #define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */ -diff --git a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h b/arch/mn10300/proc-mn2ws0050/include/proc/cache.h -index bcb5df2..84fabd2 100644 ---- a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h -+++ b/arch/mn10300/proc-mn2ws0050/include/proc/cache.h -@@ -16,13 +16,15 @@ - #ifndef _ASM_PROC_CACHE_H - #define _ASM_PROC_CACHE_H - -+#include <linux/const.h> -+ - /* - * L1 cache - */ - #define L1_CACHE_NWAYS 4 /* number of ways in caches */ - #define L1_CACHE_NENTRIES 128 /* number of entries in each way */ --#define L1_CACHE_BYTES 32 /* bytes per entry */ - #define L1_CACHE_SHIFT 5 /* shift for bytes per entry */ -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) /* bytes per entry */ - #define L1_CACHE_WAYDISP 0x1000 /* distance from one way to the next */ - - #define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */ -diff --git a/arch/openrisc/include/asm/cache.h b/arch/openrisc/include/asm/cache.h -index 4ce7a01..449202a 100644 ---- a/arch/openrisc/include/asm/cache.h -+++ b/arch/openrisc/include/asm/cache.h -@@ -19,11 +19,13 @@ - #ifndef __ASM_OPENRISC_CACHE_H - #define __ASM_OPENRISC_CACHE_H - -+#include <linux/const.h> -+ - /* FIXME: How can we replace these with values from the CPU... - * they shouldn't be hard-coded! - */ - --#define L1_CACHE_BYTES 16 - #define L1_CACHE_SHIFT 4 -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - #endif /* __ASM_OPENRISC_CACHE_H */ -diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h -index 6c6defc..d30653d 100644 ---- a/arch/parisc/include/asm/atomic.h -+++ b/arch/parisc/include/asm/atomic.h -@@ -229,6 +229,16 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u) - - #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) - -+#define atomic64_read_unchecked(v) atomic64_read(v) -+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i)) -+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v)) -+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v)) -+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v)) -+#define atomic64_inc_unchecked(v) atomic64_inc(v) -+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v) -+#define atomic64_dec_unchecked(v) atomic64_dec(v) -+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n)) -+ - #endif /* !CONFIG_64BIT */ - - -diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h -index 47f11c7..3420df2 100644 ---- a/arch/parisc/include/asm/cache.h -+++ b/arch/parisc/include/asm/cache.h -@@ -5,6 +5,7 @@ - #ifndef __ARCH_PARISC_CACHE_H - #define __ARCH_PARISC_CACHE_H - -+#include <linux/const.h> - - /* - * PA 2.0 processors have 64-byte cachelines; PA 1.1 processors have -@@ -15,13 +16,13 @@ - * just ruin performance. - */ - #ifdef CONFIG_PA20 --#define L1_CACHE_BYTES 64 - #define L1_CACHE_SHIFT 6 - #else --#define L1_CACHE_BYTES 32 - #define L1_CACHE_SHIFT 5 - #endif - -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) -+ - #ifndef __ASSEMBLY__ - - #define SMP_CACHE_BYTES L1_CACHE_BYTES -diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h -index 19f6cb1..6c78cf2 100644 ---- a/arch/parisc/include/asm/elf.h -+++ b/arch/parisc/include/asm/elf.h -@@ -342,6 +342,13 @@ struct pt_regs; /* forward declaration... */ - - #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x01000000) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE 0x10000UL -+ -+#define PAX_DELTA_MMAP_LEN 16 -+#define PAX_DELTA_STACK_LEN 16 -+#endif -+ - /* This yields a mask that user programs can use to figure out what - instruction set this CPU supports. This could be done in user space, - but it's not easy, and we've already done it here. */ -diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h -index fc987a1..6e068ef 100644 ---- a/arch/parisc/include/asm/pgalloc.h -+++ b/arch/parisc/include/asm/pgalloc.h -@@ -61,6 +61,11 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd) - (__u32)(__pa((unsigned long)pmd) >> PxD_VALUE_SHIFT)); - } - -+static inline void pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd) -+{ -+ pgd_populate(mm, pgd, pmd); -+} -+ - static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) - { - pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT, -@@ -93,6 +98,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) - #define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); }) - #define pmd_free(mm, x) do { } while (0) - #define pgd_populate(mm, pmd, pte) BUG() -+#define pgd_populate_kernel(mm, pmd, pte) BUG() - - #endif - -diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h -index ee99f23..802b0a1 100644 ---- a/arch/parisc/include/asm/pgtable.h -+++ b/arch/parisc/include/asm/pgtable.h -@@ -212,6 +212,17 @@ struct vm_area_struct; - #define PAGE_EXECREAD __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_EXEC |_PAGE_ACCESSED) - #define PAGE_COPY PAGE_EXECREAD - #define PAGE_RWX __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_EXEC |_PAGE_ACCESSED) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_ACCESSED) -+# define PAGE_COPY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED) -+# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED) -+#else -+# define PAGE_SHARED_NOEXEC PAGE_SHARED -+# define PAGE_COPY_NOEXEC PAGE_COPY -+# define PAGE_READONLY_NOEXEC PAGE_READONLY -+#endif -+ - #define PAGE_KERNEL __pgprot(_PAGE_KERNEL) - #define PAGE_KERNEL_EXEC __pgprot(_PAGE_KERNEL_EXEC) - #define PAGE_KERNEL_RWX __pgprot(_PAGE_KERNEL_RWX) -diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h -index 9ac0660..6ed15c4 100644 ---- a/arch/parisc/include/asm/uaccess.h -+++ b/arch/parisc/include/asm/uaccess.h -@@ -252,10 +252,10 @@ static inline unsigned long __must_check copy_from_user(void *to, - const void __user *from, - unsigned long n) - { -- int sz = __compiletime_object_size(to); -+ size_t sz = __compiletime_object_size(to); - int ret = -EFAULT; - -- if (likely(sz == -1 || !__builtin_constant_p(n) || sz >= n)) -+ if (likely(sz == (size_t)-1 || !__builtin_constant_p(n) || sz >= n)) - ret = __copy_from_user(to, from, n); - else - copy_from_user_overflow(); -diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c -index 5e34ccf..672bc9c 100644 ---- a/arch/parisc/kernel/module.c -+++ b/arch/parisc/kernel/module.c -@@ -98,16 +98,38 @@ - - /* three functions to determine where in the module core - * or init pieces the location is */ -+static inline int in_init_rx(struct module *me, void *loc) -+{ -+ return (loc >= me->module_init_rx && -+ loc < (me->module_init_rx + me->init_size_rx)); -+} -+ -+static inline int in_init_rw(struct module *me, void *loc) -+{ -+ return (loc >= me->module_init_rw && -+ loc < (me->module_init_rw + me->init_size_rw)); -+} -+ - static inline int in_init(struct module *me, void *loc) - { -- return (loc >= me->module_init && -- loc <= (me->module_init + me->init_size)); -+ return in_init_rx(me, loc) || in_init_rw(me, loc); -+} -+ -+static inline int in_core_rx(struct module *me, void *loc) -+{ -+ return (loc >= me->module_core_rx && -+ loc < (me->module_core_rx + me->core_size_rx)); -+} -+ -+static inline int in_core_rw(struct module *me, void *loc) -+{ -+ return (loc >= me->module_core_rw && -+ loc < (me->module_core_rw + me->core_size_rw)); - } - - static inline int in_core(struct module *me, void *loc) - { -- return (loc >= me->module_core && -- loc <= (me->module_core + me->core_size)); -+ return in_core_rx(me, loc) || in_core_rw(me, loc); - } - - static inline int in_local(struct module *me, void *loc) -@@ -373,13 +395,13 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr, - } - - /* align things a bit */ -- me->core_size = ALIGN(me->core_size, 16); -- me->arch.got_offset = me->core_size; -- me->core_size += gots * sizeof(struct got_entry); -+ me->core_size_rw = ALIGN(me->core_size_rw, 16); -+ me->arch.got_offset = me->core_size_rw; -+ me->core_size_rw += gots * sizeof(struct got_entry); - -- me->core_size = ALIGN(me->core_size, 16); -- me->arch.fdesc_offset = me->core_size; -- me->core_size += fdescs * sizeof(Elf_Fdesc); -+ me->core_size_rw = ALIGN(me->core_size_rw, 16); -+ me->arch.fdesc_offset = me->core_size_rw; -+ me->core_size_rw += fdescs * sizeof(Elf_Fdesc); - - me->arch.got_max = gots; - me->arch.fdesc_max = fdescs; -@@ -397,7 +419,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend) - - BUG_ON(value == 0); - -- got = me->module_core + me->arch.got_offset; -+ got = me->module_core_rw + me->arch.got_offset; - for (i = 0; got[i].addr; i++) - if (got[i].addr == value) - goto out; -@@ -415,7 +437,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend) - #ifdef CONFIG_64BIT - static Elf_Addr get_fdesc(struct module *me, unsigned long value) - { -- Elf_Fdesc *fdesc = me->module_core + me->arch.fdesc_offset; -+ Elf_Fdesc *fdesc = me->module_core_rw + me->arch.fdesc_offset; - - if (!value) { - printk(KERN_ERR "%s: zero OPD requested!\n", me->name); -@@ -433,7 +455,7 @@ static Elf_Addr get_fdesc(struct module *me, unsigned long value) - - /* Create new one */ - fdesc->addr = value; -- fdesc->gp = (Elf_Addr)me->module_core + me->arch.got_offset; -+ fdesc->gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset; - return (Elf_Addr)fdesc; - } - #endif /* CONFIG_64BIT */ -@@ -845,7 +867,7 @@ register_unwind_table(struct module *me, - - table = (unsigned char *)sechdrs[me->arch.unwind_section].sh_addr; - end = table + sechdrs[me->arch.unwind_section].sh_size; -- gp = (Elf_Addr)me->module_core + me->arch.got_offset; -+ gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset; - - DEBUGP("register_unwind_table(), sect = %d at 0x%p - 0x%p (gp=0x%lx)\n", - me->arch.unwind_section, table, end, gp); -diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c -index c9b9322..02d8940 100644 ---- a/arch/parisc/kernel/sys_parisc.c -+++ b/arch/parisc/kernel/sys_parisc.c -@@ -43,7 +43,7 @@ static unsigned long get_unshared_area(unsigned long addr, unsigned long len) - /* At this point: (!vma || addr < vma->vm_end). */ - if (TASK_SIZE - len < addr) - return -ENOMEM; -- if (!vma || addr + len <= vma->vm_start) -+ if (check_heap_stack_gap(vma, addr, len)) - return addr; - addr = vma->vm_end; - } -@@ -79,7 +79,7 @@ static unsigned long get_shared_area(struct address_space *mapping, - /* At this point: (!vma || addr < vma->vm_end). */ - if (TASK_SIZE - len < addr) - return -ENOMEM; -- if (!vma || addr + len <= vma->vm_start) -+ if (check_heap_stack_gap(vma, addr, len)) - return addr; - addr = DCACHE_ALIGN(vma->vm_end - offset) + offset; - if (addr < vma->vm_end) /* handle wraparound */ -@@ -98,7 +98,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, - if (flags & MAP_FIXED) - return addr; - if (!addr) -- addr = TASK_UNMAPPED_BASE; -+ addr = current->mm->mmap_base; - - if (filp) { - addr = get_shared_area(filp->f_mapping, addr, len, pgoff); -diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c -index 45ba99f..8e22c33 100644 ---- a/arch/parisc/kernel/traps.c -+++ b/arch/parisc/kernel/traps.c -@@ -732,9 +732,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs) - - down_read(&current->mm->mmap_sem); - vma = find_vma(current->mm,regs->iaoq[0]); -- if (vma && (regs->iaoq[0] >= vma->vm_start) -- && (vma->vm_flags & VM_EXEC)) { -- -+ if (vma && (regs->iaoq[0] >= vma->vm_start)) { - fault_address = regs->iaoq[0]; - fault_space = regs->iasq[0]; - -diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c -index 18162ce..94de376 100644 ---- a/arch/parisc/mm/fault.c -+++ b/arch/parisc/mm/fault.c -@@ -15,6 +15,7 @@ - #include <linux/sched.h> - #include <linux/interrupt.h> - #include <linux/module.h> -+#include <linux/unistd.h> - - #include <asm/uaccess.h> - #include <asm/traps.h> -@@ -52,7 +53,7 @@ DEFINE_PER_CPU(struct exception_data, exception_data); - static unsigned long - parisc_acctyp(unsigned long code, unsigned int inst) - { -- if (code == 6 || code == 16) -+ if (code == 6 || code == 7 || code == 16) - return VM_EXEC; - - switch (inst & 0xf0000000) { -@@ -138,6 +139,116 @@ parisc_acctyp(unsigned long code, unsigned int inst) - } - #endif - -+#ifdef CONFIG_PAX_PAGEEXEC -+/* -+ * PaX: decide what to do with offenders (instruction_pointer(regs) = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when rt_sigreturn trampoline was detected -+ * 3 when unpatched PLT trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ -+#ifdef CONFIG_PAX_EMUPLT -+ int err; -+ -+ do { /* PaX: unpatched PLT emulation */ -+ unsigned int bl, depwi; -+ -+ err = get_user(bl, (unsigned int *)instruction_pointer(regs)); -+ err |= get_user(depwi, (unsigned int *)(instruction_pointer(regs)+4)); -+ -+ if (err) -+ break; -+ -+ if (bl == 0xEA9F1FDDU && depwi == 0xD6801C1EU) { -+ unsigned int ldw, bv, ldw2, addr = instruction_pointer(regs)-12; -+ -+ err = get_user(ldw, (unsigned int *)addr); -+ err |= get_user(bv, (unsigned int *)(addr+4)); -+ err |= get_user(ldw2, (unsigned int *)(addr+8)); -+ -+ if (err) -+ break; -+ -+ if (ldw == 0x0E801096U && -+ bv == 0xEAC0C000U && -+ ldw2 == 0x0E881095U) -+ { -+ unsigned int resolver, map; -+ -+ err = get_user(resolver, (unsigned int *)(instruction_pointer(regs)+8)); -+ err |= get_user(map, (unsigned int *)(instruction_pointer(regs)+12)); -+ if (err) -+ break; -+ -+ regs->gr[20] = instruction_pointer(regs)+8; -+ regs->gr[21] = map; -+ regs->gr[22] = resolver; -+ regs->iaoq[0] = resolver | 3UL; -+ regs->iaoq[1] = regs->iaoq[0] + 4; -+ return 3; -+ } -+ } -+ } while (0); -+#endif -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ -+#ifndef CONFIG_PAX_EMUSIGRT -+ if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP)) -+ return 1; -+#endif -+ -+ do { /* PaX: rt_sigreturn emulation */ -+ unsigned int ldi1, ldi2, bel, nop; -+ -+ err = get_user(ldi1, (unsigned int *)instruction_pointer(regs)); -+ err |= get_user(ldi2, (unsigned int *)(instruction_pointer(regs)+4)); -+ err |= get_user(bel, (unsigned int *)(instruction_pointer(regs)+8)); -+ err |= get_user(nop, (unsigned int *)(instruction_pointer(regs)+12)); -+ -+ if (err) -+ break; -+ -+ if ((ldi1 == 0x34190000U || ldi1 == 0x34190002U) && -+ ldi2 == 0x3414015AU && -+ bel == 0xE4008200U && -+ nop == 0x08000240U) -+ { -+ regs->gr[25] = (ldi1 & 2) >> 1; -+ regs->gr[20] = __NR_rt_sigreturn; -+ regs->gr[31] = regs->iaoq[1] + 16; -+ regs->sr[0] = regs->iasq[1]; -+ regs->iaoq[0] = 0x100UL; -+ regs->iaoq[1] = regs->iaoq[0] + 4; -+ regs->iasq[0] = regs->sr[2]; -+ regs->iasq[1] = regs->sr[2]; -+ return 2; -+ } -+ } while (0); -+#endif -+ -+ return 1; -+} -+ -+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - int fixup_exception(struct pt_regs *regs) - { - const struct exception_table_entry *fix; -@@ -192,8 +303,33 @@ good_area: - - acc_type = parisc_acctyp(code,regs->iir); - -- if ((vma->vm_flags & acc_type) != acc_type) -+ if ((vma->vm_flags & acc_type) != acc_type) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && (acc_type & VM_EXEC) && -+ (address & ~3UL) == instruction_pointer(regs)) -+ { -+ up_read(&mm->mmap_sem); -+ switch (pax_handle_fetch_fault(regs)) { -+ -+#ifdef CONFIG_PAX_EMUPLT -+ case 3: -+ return; -+#endif -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ case 2: -+ return; -+#endif -+ -+ } -+ pax_report_fault(regs, (void *)instruction_pointer(regs), (void *)regs->gr[30]); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ - goto bad_area; -+ } - - /* - * If for any reason at all we couldn't handle the fault, make -diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h -index da29032..f76c24c 100644 ---- a/arch/powerpc/include/asm/atomic.h -+++ b/arch/powerpc/include/asm/atomic.h -@@ -522,6 +522,16 @@ static __inline__ long atomic64_inc_not_zero(atomic64_t *v) - return t1; - } - -+#define atomic64_read_unchecked(v) atomic64_read(v) -+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i)) -+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v)) -+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v)) -+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v)) -+#define atomic64_inc_unchecked(v) atomic64_inc(v) -+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v) -+#define atomic64_dec_unchecked(v) atomic64_dec(v) -+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n)) -+ - #endif /* __powerpc64__ */ - - #endif /* __KERNEL__ */ -diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h -index 9e495c9..b6878e5 100644 ---- a/arch/powerpc/include/asm/cache.h -+++ b/arch/powerpc/include/asm/cache.h -@@ -3,6 +3,7 @@ - - #ifdef __KERNEL__ - -+#include <linux/const.h> - - /* bytes per L1 cache line */ - #if defined(CONFIG_8xx) || defined(CONFIG_403GCX) -@@ -22,7 +23,7 @@ - #define L1_CACHE_SHIFT 7 - #endif - --#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - #define SMP_CACHE_BYTES L1_CACHE_BYTES - -diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h -index 3bf9cca..e7457d0 100644 ---- a/arch/powerpc/include/asm/elf.h -+++ b/arch/powerpc/include/asm/elf.h -@@ -178,8 +178,19 @@ typedef elf_fpreg_t elf_vsrreghalf_t32[ELF_NVSRHALFREG]; - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - --extern unsigned long randomize_et_dyn(unsigned long base); --#define ELF_ET_DYN_BASE (randomize_et_dyn(0x20000000)) -+#define ELF_ET_DYN_BASE (0x20000000) -+ -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (0x10000000UL) -+ -+#ifdef __powerpc64__ -+#define PAX_DELTA_MMAP_LEN (is_32bit_task() ? 16 : 28) -+#define PAX_DELTA_STACK_LEN (is_32bit_task() ? 16 : 28) -+#else -+#define PAX_DELTA_MMAP_LEN 15 -+#define PAX_DELTA_STACK_LEN 15 -+#endif -+#endif - - /* - * Our registers are always unsigned longs, whether we're a 32 bit -@@ -274,9 +285,6 @@ extern int arch_setup_additional_pages(struct linux_binprm *bprm, - (0x7ff >> (PAGE_SHIFT - 12)) : \ - (0x3ffff >> (PAGE_SHIFT - 12))) - --extern unsigned long arch_randomize_brk(struct mm_struct *mm); --#define arch_randomize_brk arch_randomize_brk -- - #endif /* __KERNEL__ */ - - /* -diff --git a/arch/powerpc/include/asm/exec.h b/arch/powerpc/include/asm/exec.h -index 8196e9c..d83a9f3 100644 ---- a/arch/powerpc/include/asm/exec.h -+++ b/arch/powerpc/include/asm/exec.h -@@ -4,6 +4,6 @@ - #ifndef _ASM_POWERPC_EXEC_H - #define _ASM_POWERPC_EXEC_H - --extern unsigned long arch_align_stack(unsigned long sp); -+#define arch_align_stack(x) ((x) & ~0xfUL) - - #endif /* _ASM_POWERPC_EXEC_H */ -diff --git a/arch/powerpc/include/asm/kmap_types.h b/arch/powerpc/include/asm/kmap_types.h -index bca8fdc..61e9580 100644 ---- a/arch/powerpc/include/asm/kmap_types.h -+++ b/arch/powerpc/include/asm/kmap_types.h -@@ -27,6 +27,7 @@ enum km_type { - KM_PPC_SYNC_PAGE, - KM_PPC_SYNC_ICACHE, - KM_KDB, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff --git a/arch/powerpc/include/asm/mman.h b/arch/powerpc/include/asm/mman.h -index d4a7f64..451de1c 100644 ---- a/arch/powerpc/include/asm/mman.h -+++ b/arch/powerpc/include/asm/mman.h -@@ -44,7 +44,7 @@ static inline unsigned long arch_calc_vm_prot_bits(unsigned long prot) - } - #define arch_calc_vm_prot_bits(prot) arch_calc_vm_prot_bits(prot) - --static inline pgprot_t arch_vm_get_page_prot(unsigned long vm_flags) -+static inline pgprot_t arch_vm_get_page_prot(vm_flags_t vm_flags) - { - return (vm_flags & VM_SAO) ? __pgprot(_PAGE_SAO) : __pgprot(0); - } -diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h -index f072e97..b436dee 100644 ---- a/arch/powerpc/include/asm/page.h -+++ b/arch/powerpc/include/asm/page.h -@@ -220,8 +220,9 @@ extern long long virt_phys_offset; - * and needs to be executable. This means the whole heap ends - * up being executable. - */ --#define VM_DATA_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \ -- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) -+#define VM_DATA_DEFAULT_FLAGS32 \ -+ (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \ -+ VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - - #define VM_DATA_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) -@@ -249,6 +250,9 @@ extern long long virt_phys_offset; - #define is_kernel_addr(x) ((x) >= PAGE_OFFSET) - #endif - -+#define ktla_ktva(addr) (addr) -+#define ktva_ktla(addr) (addr) -+ - /* - * Use the top bit of the higher-level page table entries to indicate whether - * the entries we point to contain hugepages. This works because we know that -diff --git a/arch/powerpc/include/asm/page_64.h b/arch/powerpc/include/asm/page_64.h -index fed85e6..da5c71b 100644 ---- a/arch/powerpc/include/asm/page_64.h -+++ b/arch/powerpc/include/asm/page_64.h -@@ -146,15 +146,18 @@ do { \ - * stack by default, so in the absence of a PT_GNU_STACK program header - * we turn execute permission off. - */ --#define VM_STACK_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \ -- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) -+#define VM_STACK_DEFAULT_FLAGS32 \ -+ (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \ -+ VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - - #define VM_STACK_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - -+#ifndef CONFIG_PAX_PAGEEXEC - #define VM_STACK_DEFAULT_FLAGS \ - (is_32bit_task() ? \ - VM_STACK_DEFAULT_FLAGS32 : VM_STACK_DEFAULT_FLAGS64) -+#endif - - #include <asm-generic/getorder.h> - -diff --git a/arch/powerpc/include/asm/pgalloc-64.h b/arch/powerpc/include/asm/pgalloc-64.h -index 292725c..f87ae14 100644 ---- a/arch/powerpc/include/asm/pgalloc-64.h -+++ b/arch/powerpc/include/asm/pgalloc-64.h -@@ -50,6 +50,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) - #ifndef CONFIG_PPC_64K_PAGES - - #define pgd_populate(MM, PGD, PUD) pgd_set(PGD, PUD) -+#define pgd_populate_kernel(MM, PGD, PUD) pgd_populate((MM), (PGD), (PUD)) - - static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) - { -@@ -67,6 +68,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) - pud_set(pud, (unsigned long)pmd); - } - -+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) -+{ -+ pud_populate(mm, pud, pmd); -+} -+ - #define pmd_populate(mm, pmd, pte_page) \ - pmd_populate_kernel(mm, pmd, page_address(pte_page)) - #define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, (unsigned long)(pte)) -@@ -76,6 +82,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) - #else /* CONFIG_PPC_64K_PAGES */ - - #define pud_populate(mm, pud, pmd) pud_set(pud, (unsigned long)pmd) -+#define pud_populate_kernel(mm, pud, pmd) pud_populate((mm), (pud), (pmd)) - - static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, - pte_t *pte) -diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h -index 2e0e411..7899c68 100644 ---- a/arch/powerpc/include/asm/pgtable.h -+++ b/arch/powerpc/include/asm/pgtable.h -@@ -2,6 +2,7 @@ - #define _ASM_POWERPC_PGTABLE_H - #ifdef __KERNEL__ - -+#include <linux/const.h> - #ifndef __ASSEMBLY__ - #include <asm/processor.h> /* For TASK_SIZE */ - #include <asm/mmu.h> -diff --git a/arch/powerpc/include/asm/pte-hash32.h b/arch/powerpc/include/asm/pte-hash32.h -index 4aad413..85d86bf 100644 ---- a/arch/powerpc/include/asm/pte-hash32.h -+++ b/arch/powerpc/include/asm/pte-hash32.h -@@ -21,6 +21,7 @@ - #define _PAGE_FILE 0x004 /* when !present: nonlinear file mapping */ - #define _PAGE_USER 0x004 /* usermode access allowed */ - #define _PAGE_GUARDED 0x008 /* G: prohibit speculative access */ -+#define _PAGE_EXEC _PAGE_GUARDED - #define _PAGE_COHERENT 0x010 /* M: enforce memory coherence (SMP systems) */ - #define _PAGE_NO_CACHE 0x020 /* I: cache inhibit */ - #define _PAGE_WRITETHRU 0x040 /* W: cache write-through */ -diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h -index 9d7f0fb..a28fe69 100644 ---- a/arch/powerpc/include/asm/reg.h -+++ b/arch/powerpc/include/asm/reg.h -@@ -212,6 +212,7 @@ - #define SPRN_DBCR 0x136 /* e300 Data Breakpoint Control Reg */ - #define SPRN_DSISR 0x012 /* Data Storage Interrupt Status Register */ - #define DSISR_NOHPTE 0x40000000 /* no translation found */ -+#define DSISR_GUARDED 0x10000000 /* fetch from guarded storage */ - #define DSISR_PROTFAULT 0x08000000 /* protection fault */ - #define DSISR_ISSTORE 0x02000000 /* access was a store */ - #define DSISR_DABRMATCH 0x00400000 /* hit data breakpoint */ -diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h -index 4a741c7..c8162227b 100644 ---- a/arch/powerpc/include/asm/thread_info.h -+++ b/arch/powerpc/include/asm/thread_info.h -@@ -104,12 +104,14 @@ static inline struct thread_info *current_thread_info(void) - #define TIF_PERFMON_CTXSW 6 /* perfmon needs ctxsw calls */ - #define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */ - #define TIF_SINGLESTEP 8 /* singlestepping active */ --#define TIF_MEMDIE 9 /* is terminating due to OOM killer */ - #define TIF_SECCOMP 10 /* secure computing */ - #define TIF_RESTOREALL 11 /* Restore all regs (implies NOERROR) */ - #define TIF_NOERROR 12 /* Force successful syscall return */ - #define TIF_NOTIFY_RESUME 13 /* callback before returning to user */ - #define TIF_SYSCALL_TRACEPOINT 15 /* syscall tracepoint instrumentation */ -+#define TIF_MEMDIE 16 /* is terminating due to OOM killer */ -+/* mask must be expressable within 16 bits to satisfy 'andi' instruction reqs */ -+#define TIF_GRSEC_SETXID 9 /* update credentials on syscall entry/exit */ - - /* as above, but as bit values */ - #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) -@@ -127,8 +129,11 @@ static inline struct thread_info *current_thread_info(void) - #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) - #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT) - #define _TIF_RUNLATCH (1<<TIF_RUNLATCH) -+#define _TIF_GRSEC_SETXID (1<<TIF_GRSEC_SETXID) -+ - #define _TIF_SYSCALL_T_OR_A (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \ -- _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT) -+ _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT \ -+ _TIF_GRSEC_SETXID) - - #define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \ - _TIF_NOTIFY_RESUME) -diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h -index bd0fb84..a42a14b 100644 ---- a/arch/powerpc/include/asm/uaccess.h -+++ b/arch/powerpc/include/asm/uaccess.h -@@ -13,6 +13,8 @@ - #define VERIFY_READ 0 - #define VERIFY_WRITE 1 - -+extern void check_object_size(const void *ptr, unsigned long n, bool to); -+ - /* - * The fs value determines whether argument validity checking should be - * performed or not. If get_fs() == USER_DS, checking is performed, with -@@ -327,52 +329,6 @@ do { \ - extern unsigned long __copy_tofrom_user(void __user *to, - const void __user *from, unsigned long size); - --#ifndef __powerpc64__ -- --static inline unsigned long copy_from_user(void *to, -- const void __user *from, unsigned long n) --{ -- unsigned long over; -- -- if (access_ok(VERIFY_READ, from, n)) -- return __copy_tofrom_user((__force void __user *)to, from, n); -- if ((unsigned long)from < TASK_SIZE) { -- over = (unsigned long)from + n - TASK_SIZE; -- return __copy_tofrom_user((__force void __user *)to, from, -- n - over) + over; -- } -- return n; --} -- --static inline unsigned long copy_to_user(void __user *to, -- const void *from, unsigned long n) --{ -- unsigned long over; -- -- if (access_ok(VERIFY_WRITE, to, n)) -- return __copy_tofrom_user(to, (__force void __user *)from, n); -- if ((unsigned long)to < TASK_SIZE) { -- over = (unsigned long)to + n - TASK_SIZE; -- return __copy_tofrom_user(to, (__force void __user *)from, -- n - over) + over; -- } -- return n; --} -- --#else /* __powerpc64__ */ -- --#define __copy_in_user(to, from, size) \ -- __copy_tofrom_user((to), (from), (size)) -- --extern unsigned long copy_from_user(void *to, const void __user *from, -- unsigned long n); --extern unsigned long copy_to_user(void __user *to, const void *from, -- unsigned long n); --extern unsigned long copy_in_user(void __user *to, const void __user *from, -- unsigned long n); -- --#endif /* __powerpc64__ */ -- - static inline unsigned long __copy_from_user_inatomic(void *to, - const void __user *from, unsigned long n) - { -@@ -396,6 +352,10 @@ static inline unsigned long __copy_from_user_inatomic(void *to, - if (ret == 0) - return 0; - } -+ -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); -+ - return __copy_tofrom_user((__force void __user *)to, from, n); - } - -@@ -422,6 +382,10 @@ static inline unsigned long __copy_to_user_inatomic(void __user *to, - if (ret == 0) - return 0; - } -+ -+ if (!__builtin_constant_p(n)) -+ check_object_size(from, n, true); -+ - return __copy_tofrom_user(to, (__force const void __user *)from, n); - } - -@@ -439,6 +403,92 @@ static inline unsigned long __copy_to_user(void __user *to, - return __copy_to_user_inatomic(to, from, size); - } - -+#ifndef __powerpc64__ -+ -+static inline unsigned long __must_check copy_from_user(void *to, -+ const void __user *from, unsigned long n) -+{ -+ unsigned long over; -+ -+ if ((long)n < 0) -+ return n; -+ -+ if (access_ok(VERIFY_READ, from, n)) { -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); -+ return __copy_tofrom_user((__force void __user *)to, from, n); -+ } -+ if ((unsigned long)from < TASK_SIZE) { -+ over = (unsigned long)from + n - TASK_SIZE; -+ if (!__builtin_constant_p(n - over)) -+ check_object_size(to, n - over, false); -+ return __copy_tofrom_user((__force void __user *)to, from, -+ n - over) + over; -+ } -+ return n; -+} -+ -+static inline unsigned long __must_check copy_to_user(void __user *to, -+ const void *from, unsigned long n) -+{ -+ unsigned long over; -+ -+ if ((long)n < 0) -+ return n; -+ -+ if (access_ok(VERIFY_WRITE, to, n)) { -+ if (!__builtin_constant_p(n)) -+ check_object_size(from, n, true); -+ return __copy_tofrom_user(to, (__force void __user *)from, n); -+ } -+ if ((unsigned long)to < TASK_SIZE) { -+ over = (unsigned long)to + n - TASK_SIZE; -+ if (!__builtin_constant_p(n)) -+ check_object_size(from, n - over, true); -+ return __copy_tofrom_user(to, (__force void __user *)from, -+ n - over) + over; -+ } -+ return n; -+} -+ -+#else /* __powerpc64__ */ -+ -+#define __copy_in_user(to, from, size) \ -+ __copy_tofrom_user((to), (from), (size)) -+ -+static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n) -+{ -+ if ((long)n < 0 || n > INT_MAX) -+ return n; -+ -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); -+ -+ if (likely(access_ok(VERIFY_READ, from, n))) -+ n = __copy_from_user(to, from, n); -+ else -+ memset(to, 0, n); -+ return n; -+} -+ -+static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n) -+{ -+ if ((long)n < 0 || n > INT_MAX) -+ return n; -+ -+ if (likely(access_ok(VERIFY_WRITE, to, n))) { -+ if (!__builtin_constant_p(n)) -+ check_object_size(from, n, true); -+ n = __copy_to_user(to, from, n); -+ } -+ return n; -+} -+ -+extern unsigned long copy_in_user(void __user *to, const void __user *from, -+ unsigned long n); -+ -+#endif /* __powerpc64__ */ -+ - extern unsigned long __clear_user(void __user *addr, unsigned long size); - - static inline unsigned long clear_user(void __user *addr, unsigned long size) -diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S -index 7215cc2..a9730c1 100644 ---- a/arch/powerpc/kernel/exceptions-64e.S -+++ b/arch/powerpc/kernel/exceptions-64e.S -@@ -661,6 +661,7 @@ storage_fault_common: - std r14,_DAR(r1) - std r15,_DSISR(r1) - addi r3,r1,STACK_FRAME_OVERHEAD -+ bl .save_nvgprs - mr r4,r14 - mr r5,r15 - ld r14,PACA_EXGEN+EX_R14(r13) -@@ -669,8 +670,7 @@ storage_fault_common: - cmpdi r3,0 - bne- 1f - b .ret_from_except_lite --1: bl .save_nvgprs -- mr r5,r3 -+1: mr r5,r3 - addi r3,r1,STACK_FRAME_OVERHEAD - ld r4,_DAR(r1) - bl .bad_page_fault -diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S -index 8f880bc..c5bd2f3 100644 ---- a/arch/powerpc/kernel/exceptions-64s.S -+++ b/arch/powerpc/kernel/exceptions-64s.S -@@ -890,10 +890,10 @@ handle_page_fault: - 11: ld r4,_DAR(r1) - ld r5,_DSISR(r1) - addi r3,r1,STACK_FRAME_OVERHEAD -+ bl .save_nvgprs - bl .do_page_fault - cmpdi r3,0 - beq+ 12f -- bl .save_nvgprs - mr r5,r3 - addi r3,r1,STACK_FRAME_OVERHEAD - lwz r4,_DAR(r1) -diff --git a/arch/powerpc/kernel/module_32.c b/arch/powerpc/kernel/module_32.c -index 2e3200c..72095ce 100644 ---- a/arch/powerpc/kernel/module_32.c -+++ b/arch/powerpc/kernel/module_32.c -@@ -162,7 +162,7 @@ int module_frob_arch_sections(Elf32_Ehdr *hdr, - me->arch.core_plt_section = i; - } - if (!me->arch.core_plt_section || !me->arch.init_plt_section) { -- printk("Module doesn't contain .plt or .init.plt sections.\n"); -+ printk("Module %s doesn't contain .plt or .init.plt sections.\n", me->name); - return -ENOEXEC; - } - -@@ -192,11 +192,16 @@ static uint32_t do_plt_call(void *location, - - DEBUGP("Doing plt for call to 0x%x at 0x%x\n", val, (unsigned int)location); - /* Init, or core PLT? */ -- if (location >= mod->module_core -- && location < mod->module_core + mod->core_size) -+ if ((location >= mod->module_core_rx && location < mod->module_core_rx + mod->core_size_rx) || -+ (location >= mod->module_core_rw && location < mod->module_core_rw + mod->core_size_rw)) - entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr; -- else -+ else if ((location >= mod->module_init_rx && location < mod->module_init_rx + mod->init_size_rx) || -+ (location >= mod->module_init_rw && location < mod->module_init_rw + mod->init_size_rw)) - entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr; -+ else { -+ printk(KERN_ERR "%s: invalid R_PPC_REL24 entry found\n", mod->name); -+ return ~0UL; -+ } - - /* Find this entry, or if that fails, the next avail. entry */ - while (entry->jump[0]) { -diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c -index 4937c96..70714b7 100644 ---- a/arch/powerpc/kernel/process.c -+++ b/arch/powerpc/kernel/process.c -@@ -681,8 +681,8 @@ void show_regs(struct pt_regs * regs) - * Lookup NIP late so we have the best change of getting the - * above info out without failing - */ -- printk("NIP ["REG"] %pS\n", regs->nip, (void *)regs->nip); -- printk("LR ["REG"] %pS\n", regs->link, (void *)regs->link); -+ printk("NIP ["REG"] %pA\n", regs->nip, (void *)regs->nip); -+ printk("LR ["REG"] %pA\n", regs->link, (void *)regs->link); - #endif - show_stack(current, (unsigned long *) regs->gpr[1]); - if (!user_mode(regs)) -@@ -1186,10 +1186,10 @@ void show_stack(struct task_struct *tsk, unsigned long *stack) - newsp = stack[0]; - ip = stack[STACK_FRAME_LR_SAVE]; - if (!firstframe || ip != lr) { -- printk("["REG"] ["REG"] %pS", sp, ip, (void *)ip); -+ printk("["REG"] ["REG"] %pA", sp, ip, (void *)ip); - #ifdef CONFIG_FUNCTION_GRAPH_TRACER - if ((ip == rth || ip == mrth) && curr_frame >= 0) { -- printk(" (%pS)", -+ printk(" (%pA)", - (void *)current->ret_stack[curr_frame].ret); - curr_frame--; - } -@@ -1209,7 +1209,7 @@ void show_stack(struct task_struct *tsk, unsigned long *stack) - struct pt_regs *regs = (struct pt_regs *) - (sp + STACK_FRAME_OVERHEAD); - lr = regs->link; -- printk("--- Exception: %lx at %pS\n LR = %pS\n", -+ printk("--- Exception: %lx at %pA\n LR = %pA\n", - regs->trap, (void *)regs->nip, (void *)lr); - firstframe = 1; - } -@@ -1282,58 +1282,3 @@ void thread_info_cache_init(void) - } - - #endif /* THREAD_SHIFT < PAGE_SHIFT */ -- --unsigned long arch_align_stack(unsigned long sp) --{ -- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) -- sp -= get_random_int() & ~PAGE_MASK; -- return sp & ~0xf; --} -- --static inline unsigned long brk_rnd(void) --{ -- unsigned long rnd = 0; -- -- /* 8MB for 32bit, 1GB for 64bit */ -- if (is_32bit_task()) -- rnd = (long)(get_random_int() % (1<<(23-PAGE_SHIFT))); -- else -- rnd = (long)(get_random_int() % (1<<(30-PAGE_SHIFT))); -- -- return rnd << PAGE_SHIFT; --} -- --unsigned long arch_randomize_brk(struct mm_struct *mm) --{ -- unsigned long base = mm->brk; -- unsigned long ret; -- --#ifdef CONFIG_PPC_STD_MMU_64 -- /* -- * If we are using 1TB segments and we are allowed to randomise -- * the heap, we can put it above 1TB so it is backed by a 1TB -- * segment. Otherwise the heap will be in the bottom 1TB -- * which always uses 256MB segments and this may result in a -- * performance penalty. -- */ -- if (!is_32bit_task() && (mmu_highuser_ssize == MMU_SEGSIZE_1T)) -- base = max_t(unsigned long, mm->brk, 1UL << SID_SHIFT_1T); --#endif -- -- ret = PAGE_ALIGN(base + brk_rnd()); -- -- if (ret < mm->brk) -- return mm->brk; -- -- return ret; --} -- --unsigned long randomize_et_dyn(unsigned long base) --{ -- unsigned long ret = PAGE_ALIGN(base + brk_rnd()); -- -- if (ret < base) -- return base; -- -- return ret; --} -diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c -index 8d8e028..c2aeb50 100644 ---- a/arch/powerpc/kernel/ptrace.c -+++ b/arch/powerpc/kernel/ptrace.c -@@ -1702,6 +1702,10 @@ long arch_ptrace(struct task_struct *child, long request, - return ret; - } - -+#ifdef CONFIG_GRKERNSEC_SETXID -+extern void gr_delayed_cred_worker(void); -+#endif -+ - /* - * We must return the syscall number to actually look up in the table. - * This can be -1L to skip running any syscall at all. -@@ -1712,6 +1716,11 @@ long do_syscall_trace_enter(struct pt_regs *regs) - - secure_computing(regs->gpr[0]); - -+#ifdef CONFIG_GRKERNSEC_SETXID -+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID))) -+ gr_delayed_cred_worker(); -+#endif -+ - if (test_thread_flag(TIF_SYSCALL_TRACE) && - tracehook_report_syscall_entry(regs)) - /* -@@ -1746,6 +1755,11 @@ void do_syscall_trace_leave(struct pt_regs *regs) - { - int step; - -+#ifdef CONFIG_GRKERNSEC_SETXID -+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID))) -+ gr_delayed_cred_worker(); -+#endif -+ - audit_syscall_exit(regs); - - if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT))) -diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c -index 45eb998..0cb36bc 100644 ---- a/arch/powerpc/kernel/signal_32.c -+++ b/arch/powerpc/kernel/signal_32.c -@@ -861,7 +861,7 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka, - /* Save user registers on the stack */ - frame = &rt_sf->uc.uc_mcontext; - addr = frame; -- if (vdso32_rt_sigtramp && current->mm->context.vdso_base) { -+ if (vdso32_rt_sigtramp && current->mm->context.vdso_base != ~0UL) { - if (save_user_regs(regs, frame, 0, 1)) - goto badframe; - regs->link = current->mm->context.vdso_base + vdso32_rt_sigtramp; -diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c -index 2692efd..6673d2e 100644 ---- a/arch/powerpc/kernel/signal_64.c -+++ b/arch/powerpc/kernel/signal_64.c -@@ -430,7 +430,7 @@ int handle_rt_signal64(int signr, struct k_sigaction *ka, siginfo_t *info, - current->thread.fpscr.val = 0; - - /* Set up to return from userspace. */ -- if (vdso64_rt_sigtramp && current->mm->context.vdso_base) { -+ if (vdso64_rt_sigtramp && current->mm->context.vdso_base != ~0UL) { - regs->link = current->mm->context.vdso_base + vdso64_rt_sigtramp; - } else { - err |= setup_trampoline(__NR_rt_sigreturn, &frame->tramp[0]); -diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c -index 1589723..cefe690 100644 ---- a/arch/powerpc/kernel/traps.c -+++ b/arch/powerpc/kernel/traps.c -@@ -133,6 +133,8 @@ static unsigned __kprobes long oops_begin(struct pt_regs *regs) - return flags; - } - -+extern void gr_handle_kernel_exploit(void); -+ - static void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, - int signr) - { -@@ -182,6 +184,9 @@ static void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, - panic("Fatal exception in interrupt"); - if (panic_on_oops) - panic("Fatal exception"); -+ -+ gr_handle_kernel_exploit(); -+ - do_exit(signr); - } - -diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c -index 9eb5b9b..e45498a 100644 ---- a/arch/powerpc/kernel/vdso.c -+++ b/arch/powerpc/kernel/vdso.c -@@ -34,6 +34,7 @@ - #include <asm/firmware.h> - #include <asm/vdso.h> - #include <asm/vdso_datapage.h> -+#include <asm/mman.h> - - #include "setup.h" - -@@ -218,7 +219,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) - vdso_base = VDSO32_MBASE; - #endif - -- current->mm->context.vdso_base = 0; -+ current->mm->context.vdso_base = ~0UL; - - /* vDSO has a problem and was disabled, just don't "enable" it for the - * process -@@ -238,7 +239,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) - vdso_base = get_unmapped_area(NULL, vdso_base, - (vdso_pages << PAGE_SHIFT) + - ((VDSO_ALIGNMENT - 1) & PAGE_MASK), -- 0, 0); -+ 0, MAP_PRIVATE | MAP_EXECUTABLE); - if (IS_ERR_VALUE(vdso_base)) { - rc = vdso_base; - goto fail_mmapsem; -diff --git a/arch/powerpc/lib/usercopy_64.c b/arch/powerpc/lib/usercopy_64.c -index 5eea6f3..5d10396 100644 ---- a/arch/powerpc/lib/usercopy_64.c -+++ b/arch/powerpc/lib/usercopy_64.c -@@ -9,22 +9,6 @@ - #include <linux/module.h> - #include <asm/uaccess.h> - --unsigned long copy_from_user(void *to, const void __user *from, unsigned long n) --{ -- if (likely(access_ok(VERIFY_READ, from, n))) -- n = __copy_from_user(to, from, n); -- else -- memset(to, 0, n); -- return n; --} -- --unsigned long copy_to_user(void __user *to, const void *from, unsigned long n) --{ -- if (likely(access_ok(VERIFY_WRITE, to, n))) -- n = __copy_to_user(to, from, n); -- return n; --} -- - unsigned long copy_in_user(void __user *to, const void __user *from, - unsigned long n) - { -@@ -35,7 +19,5 @@ unsigned long copy_in_user(void __user *to, const void __user *from, - return n; - } - --EXPORT_SYMBOL(copy_from_user); --EXPORT_SYMBOL(copy_to_user); - EXPORT_SYMBOL(copy_in_user); - -diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c -index 08ffcf5..a0ab912 100644 ---- a/arch/powerpc/mm/fault.c -+++ b/arch/powerpc/mm/fault.c -@@ -32,6 +32,10 @@ - #include <linux/perf_event.h> - #include <linux/magic.h> - #include <linux/ratelimit.h> -+#include <linux/slab.h> -+#include <linux/pagemap.h> -+#include <linux/compiler.h> -+#include <linux/unistd.h> - - #include <asm/firmware.h> - #include <asm/page.h> -@@ -68,6 +72,33 @@ static inline int notify_page_fault(struct pt_regs *regs) - } - #endif - -+#ifdef CONFIG_PAX_PAGEEXEC -+/* -+ * PaX: decide what to do with offenders (regs->nip = fault address) -+ * -+ * returns 1 when task should be killed -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ return 1; -+} -+ -+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int __user *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - /* - * Check whether the instruction at regs->nip is a store using - * an update addressing form which will update r1. -@@ -215,7 +246,7 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address, - * indicate errors in DSISR but can validly be set in SRR1. - */ - if (trap == 0x400) -- error_code &= 0x48200000; -+ error_code &= 0x58200000; - else - is_write = error_code & DSISR_ISSTORE; - #else -@@ -366,7 +397,7 @@ good_area: - * "undefined". Of those that can be set, this is the only - * one which seems bad. - */ -- if (error_code & 0x10000000) -+ if (error_code & DSISR_GUARDED) - /* Guarded storage error. */ - goto bad_area; - #endif /* CONFIG_8xx */ -@@ -381,7 +412,7 @@ good_area: - * processors use the same I/D cache coherency mechanism - * as embedded. - */ -- if (error_code & DSISR_PROTFAULT) -+ if (error_code & (DSISR_PROTFAULT | DSISR_GUARDED)) - goto bad_area; - #endif /* CONFIG_PPC_STD_MMU */ - -@@ -463,6 +494,23 @@ bad_area: - bad_area_nosemaphore: - /* User mode accesses cause a SIGSEGV */ - if (user_mode(regs)) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (mm->pax_flags & MF_PAX_PAGEEXEC) { -+#ifdef CONFIG_PPC_STD_MMU -+ if (is_exec && (error_code & (DSISR_PROTFAULT | DSISR_GUARDED))) { -+#else -+ if (is_exec && regs->nip == address) { -+#endif -+ switch (pax_handle_fetch_fault(regs)) { -+ } -+ -+ pax_report_fault(regs, (void *)regs->nip, (void *)regs->gpr[PT_R1]); -+ do_group_exit(SIGKILL); -+ } -+ } -+#endif -+ - _exception(SIGSEGV, regs, code, address); - return 0; - } -diff --git a/arch/powerpc/mm/mmap_64.c b/arch/powerpc/mm/mmap_64.c -index 67a42ed..1c7210c 100644 ---- a/arch/powerpc/mm/mmap_64.c -+++ b/arch/powerpc/mm/mmap_64.c -@@ -91,10 +91,22 @@ void arch_pick_mmap_layout(struct mm_struct *mm) - */ - if (mmap_is_legacy()) { - mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } else { - mm->mmap_base = mmap_base(); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area_topdown; - mm->unmap_area = arch_unmap_area_topdown; - } -diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c -index 73709f7..6b90313 100644 ---- a/arch/powerpc/mm/slice.c -+++ b/arch/powerpc/mm/slice.c -@@ -98,7 +98,7 @@ static int slice_area_is_free(struct mm_struct *mm, unsigned long addr, - if ((mm->task_size - len) < addr) - return 0; - vma = find_vma(mm, addr); -- return (!vma || (addr + len) <= vma->vm_start); -+ return check_heap_stack_gap(vma, addr, len); - } - - static int slice_low_has_vma(struct mm_struct *mm, unsigned long slice) -@@ -256,7 +256,7 @@ full_search: - addr = _ALIGN_UP(addr + 1, 1ul << SLICE_HIGH_SHIFT); - continue; - } -- if (!vma || addr + len <= vma->vm_start) { -+ if (check_heap_stack_gap(vma, addr, len)) { - /* - * Remember the place where we stopped the search: - */ -@@ -313,10 +313,14 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm, - } - } - -- addr = mm->mmap_base; -- while (addr > len) { -+ if (mm->mmap_base < len) -+ addr = -ENOMEM; -+ else -+ addr = mm->mmap_base - len; -+ -+ while (!IS_ERR_VALUE(addr)) { - /* Go down by chunk size */ -- addr = _ALIGN_DOWN(addr - len, 1ul << pshift); -+ addr = _ALIGN_DOWN(addr, 1ul << pshift); - - /* Check for hit with different page size */ - mask = slice_range_to_mask(addr, len); -@@ -336,7 +340,7 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm, - * return with success: - */ - vma = find_vma(mm, addr); -- if (!vma || (addr + len) <= vma->vm_start) { -+ if (check_heap_stack_gap(vma, addr, len)) { - /* remember the address as a hint for next time */ - if (use_cache) - mm->free_area_cache = addr; -@@ -348,7 +352,7 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm, - mm->cached_hole_size = vma->vm_start - addr; - - /* try just below the current vma->vm_start */ -- addr = vma->vm_start; -+ addr = skip_heap_stack_gap(vma, len); - } - - /* -@@ -426,6 +430,11 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len, - if (fixed && addr > (mm->task_size - len)) - return -EINVAL; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!fixed && (mm->pax_flags & MF_PAX_RANDMMAP)) -+ addr = 0; -+#endif -+ - /* If hint, make sure it matches our alignment restrictions */ - if (!fixed && addr) { - addr = _ALIGN_UP(addr, 1ul << pshift); -diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h -index 748347b..81bc6c7 100644 ---- a/arch/s390/include/asm/atomic.h -+++ b/arch/s390/include/asm/atomic.h -@@ -326,6 +326,16 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v) - #define atomic64_dec_and_test(_v) (atomic64_sub_return(1, _v) == 0) - #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) - -+#define atomic64_read_unchecked(v) atomic64_read(v) -+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i)) -+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v)) -+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v)) -+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v)) -+#define atomic64_inc_unchecked(v) atomic64_inc(v) -+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v) -+#define atomic64_dec_unchecked(v) atomic64_dec(v) -+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n)) -+ - #define smp_mb__before_atomic_dec() smp_mb() - #define smp_mb__after_atomic_dec() smp_mb() - #define smp_mb__before_atomic_inc() smp_mb() -diff --git a/arch/s390/include/asm/cache.h b/arch/s390/include/asm/cache.h -index 2a30d5a..5e5586f 100644 ---- a/arch/s390/include/asm/cache.h -+++ b/arch/s390/include/asm/cache.h -@@ -11,8 +11,10 @@ - #ifndef __ARCH_S390_CACHE_H - #define __ARCH_S390_CACHE_H - --#define L1_CACHE_BYTES 256 -+#include <linux/const.h> -+ - #define L1_CACHE_SHIFT 8 -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - #define NET_SKB_PAD 32 - - #define __read_mostly __attribute__((__section__(".data..read_mostly"))) -diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h -index c4ee39f..352881b 100644 ---- a/arch/s390/include/asm/elf.h -+++ b/arch/s390/include/asm/elf.h -@@ -161,8 +161,14 @@ extern unsigned int vdso_enabled; - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - --extern unsigned long randomize_et_dyn(unsigned long base); --#define ELF_ET_DYN_BASE (randomize_et_dyn(STACK_TOP / 3 * 2)) -+#define ELF_ET_DYN_BASE (STACK_TOP / 3 * 2) -+ -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_31BIT) ? 0x10000UL : 0x80000000UL) -+ -+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_31BIT) ? 15 : 26) -+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_31BIT) ? 15 : 26) -+#endif - - /* This yields a mask that user programs can use to figure out what - instruction set this CPU supports. */ -@@ -210,7 +216,4 @@ struct linux_binprm; - #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 - int arch_setup_additional_pages(struct linux_binprm *, int); - --extern unsigned long arch_randomize_brk(struct mm_struct *mm); --#define arch_randomize_brk arch_randomize_brk -- - #endif -diff --git a/arch/s390/include/asm/exec.h b/arch/s390/include/asm/exec.h -index c4a93d6..4d2a9b4 100644 ---- a/arch/s390/include/asm/exec.h -+++ b/arch/s390/include/asm/exec.h -@@ -7,6 +7,6 @@ - #ifndef __ASM_EXEC_H - #define __ASM_EXEC_H - --extern unsigned long arch_align_stack(unsigned long sp); -+#define arch_align_stack(x) ((x) & ~0xfUL) - - #endif /* __ASM_EXEC_H */ -diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h -index 8f2cada..43072c1 100644 ---- a/arch/s390/include/asm/uaccess.h -+++ b/arch/s390/include/asm/uaccess.h -@@ -236,6 +236,10 @@ static inline unsigned long __must_check - copy_to_user(void __user *to, const void *from, unsigned long n) - { - might_fault(); -+ -+ if ((long)n < 0) -+ return n; -+ - if (access_ok(VERIFY_WRITE, to, n)) - n = __copy_to_user(to, from, n); - return n; -@@ -261,6 +265,9 @@ copy_to_user(void __user *to, const void *from, unsigned long n) - static inline unsigned long __must_check - __copy_from_user(void *to, const void __user *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - if (__builtin_constant_p(n) && (n <= 256)) - return uaccess.copy_from_user_small(n, from, to); - else -@@ -292,10 +299,14 @@ __compiletime_warning("copy_from_user() buffer size is not provably correct") - static inline unsigned long __must_check - copy_from_user(void *to, const void __user *from, unsigned long n) - { -- unsigned int sz = __compiletime_object_size(to); -+ size_t sz = __compiletime_object_size(to); - - might_fault(); -- if (unlikely(sz != -1 && sz < n)) { -+ -+ if ((long)n < 0) -+ return n; -+ -+ if (unlikely(sz != (size_t)-1 && sz < n)) { - copy_from_user_overflow(); - return n; - } -diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c -index dfcb343..eda788a 100644 ---- a/arch/s390/kernel/module.c -+++ b/arch/s390/kernel/module.c -@@ -161,11 +161,11 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs, - - /* Increase core size by size of got & plt and set start - offsets for got and plt. */ -- me->core_size = ALIGN(me->core_size, 4); -- me->arch.got_offset = me->core_size; -- me->core_size += me->arch.got_size; -- me->arch.plt_offset = me->core_size; -- me->core_size += me->arch.plt_size; -+ me->core_size_rw = ALIGN(me->core_size_rw, 4); -+ me->arch.got_offset = me->core_size_rw; -+ me->core_size_rw += me->arch.got_size; -+ me->arch.plt_offset = me->core_size_rx; -+ me->core_size_rx += me->arch.plt_size; - return 0; - } - -@@ -242,7 +242,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab, - if (info->got_initialized == 0) { - Elf_Addr *gotent; - -- gotent = me->module_core + me->arch.got_offset + -+ gotent = me->module_core_rw + me->arch.got_offset + - info->got_offset; - *gotent = val; - info->got_initialized = 1; -@@ -266,7 +266,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab, - else if (r_type == R_390_GOTENT || - r_type == R_390_GOTPLTENT) - *(unsigned int *) loc = -- (val + (Elf_Addr) me->module_core - loc) >> 1; -+ (val + (Elf_Addr) me->module_core_rw - loc) >> 1; - else if (r_type == R_390_GOT64 || - r_type == R_390_GOTPLT64) - *(unsigned long *) loc = val; -@@ -280,7 +280,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab, - case R_390_PLTOFF64: /* 16 bit offset from GOT to PLT. */ - if (info->plt_initialized == 0) { - unsigned int *ip; -- ip = me->module_core + me->arch.plt_offset + -+ ip = me->module_core_rx + me->arch.plt_offset + - info->plt_offset; - #ifndef CONFIG_64BIT - ip[0] = 0x0d105810; /* basr 1,0; l 1,6(1); br 1 */ -@@ -305,7 +305,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab, - val - loc + 0xffffUL < 0x1ffffeUL) || - (r_type == R_390_PLT32DBL && - val - loc + 0xffffffffULL < 0x1fffffffeULL))) -- val = (Elf_Addr) me->module_core + -+ val = (Elf_Addr) me->module_core_rx + - me->arch.plt_offset + - info->plt_offset; - val += rela->r_addend - loc; -@@ -327,7 +327,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab, - case R_390_GOTOFF32: /* 32 bit offset to GOT. */ - case R_390_GOTOFF64: /* 64 bit offset to GOT. */ - val = val + rela->r_addend - -- ((Elf_Addr) me->module_core + me->arch.got_offset); -+ ((Elf_Addr) me->module_core_rw + me->arch.got_offset); - if (r_type == R_390_GOTOFF16) - *(unsigned short *) loc = val; - else if (r_type == R_390_GOTOFF32) -@@ -337,7 +337,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab, - break; - case R_390_GOTPC: /* 32 bit PC relative offset to GOT. */ - case R_390_GOTPCDBL: /* 32 bit PC rel. off. to GOT shifted by 1. */ -- val = (Elf_Addr) me->module_core + me->arch.got_offset + -+ val = (Elf_Addr) me->module_core_rw + me->arch.got_offset + - rela->r_addend - loc; - if (r_type == R_390_GOTPC) - *(unsigned int *) loc = val; -diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c -index 60055ce..ee4b252 100644 ---- a/arch/s390/kernel/process.c -+++ b/arch/s390/kernel/process.c -@@ -316,39 +316,3 @@ unsigned long get_wchan(struct task_struct *p) - } - return 0; - } -- --unsigned long arch_align_stack(unsigned long sp) --{ -- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) -- sp -= get_random_int() & ~PAGE_MASK; -- return sp & ~0xf; --} -- --static inline unsigned long brk_rnd(void) --{ -- /* 8MB for 32bit, 1GB for 64bit */ -- if (is_32bit_task()) -- return (get_random_int() & 0x7ffUL) << PAGE_SHIFT; -- else -- return (get_random_int() & 0x3ffffUL) << PAGE_SHIFT; --} -- --unsigned long arch_randomize_brk(struct mm_struct *mm) --{ -- unsigned long ret = PAGE_ALIGN(mm->brk + brk_rnd()); -- -- if (ret < mm->brk) -- return mm->brk; -- return ret; --} -- --unsigned long randomize_et_dyn(unsigned long base) --{ -- unsigned long ret = PAGE_ALIGN(base + brk_rnd()); -- -- if (!(current->flags & PF_RANDOMIZE)) -- return base; -- if (ret < base) -- return base; -- return ret; --} -diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c -index 2857c48..d047481 100644 ---- a/arch/s390/mm/mmap.c -+++ b/arch/s390/mm/mmap.c -@@ -92,10 +92,22 @@ void arch_pick_mmap_layout(struct mm_struct *mm) - */ - if (mmap_is_legacy()) { - mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } else { - mm->mmap_base = mmap_base(); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area_topdown; - mm->unmap_area = arch_unmap_area_topdown; - } -@@ -166,10 +178,22 @@ void arch_pick_mmap_layout(struct mm_struct *mm) - */ - if (mmap_is_legacy()) { - mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ - mm->get_unmapped_area = s390_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } else { - mm->mmap_base = mmap_base(); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; -+#endif -+ - mm->get_unmapped_area = s390_get_unmapped_area_topdown; - mm->unmap_area = arch_unmap_area_topdown; - } -diff --git a/arch/score/include/asm/cache.h b/arch/score/include/asm/cache.h -index ae3d59f..f65f075 100644 ---- a/arch/score/include/asm/cache.h -+++ b/arch/score/include/asm/cache.h -@@ -1,7 +1,9 @@ - #ifndef _ASM_SCORE_CACHE_H - #define _ASM_SCORE_CACHE_H - -+#include <linux/const.h> -+ - #define L1_CACHE_SHIFT 4 --#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - #endif /* _ASM_SCORE_CACHE_H */ -diff --git a/arch/score/include/asm/exec.h b/arch/score/include/asm/exec.h -index f9f3cd5..58ff438 100644 ---- a/arch/score/include/asm/exec.h -+++ b/arch/score/include/asm/exec.h -@@ -1,6 +1,6 @@ - #ifndef _ASM_SCORE_EXEC_H - #define _ASM_SCORE_EXEC_H - --extern unsigned long arch_align_stack(unsigned long sp); -+#define arch_align_stack(x) (x) - - #endif /* _ASM_SCORE_EXEC_H */ -diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c -index 2707023..1c2a3b7 100644 ---- a/arch/score/kernel/process.c -+++ b/arch/score/kernel/process.c -@@ -159,8 +159,3 @@ unsigned long get_wchan(struct task_struct *task) - - return task_pt_regs(task)->cp0_epc; - } -- --unsigned long arch_align_stack(unsigned long sp) --{ -- return sp; --} -diff --git a/arch/sh/include/asm/cache.h b/arch/sh/include/asm/cache.h -index ef9e555..331bd29 100644 ---- a/arch/sh/include/asm/cache.h -+++ b/arch/sh/include/asm/cache.h -@@ -9,10 +9,11 @@ - #define __ASM_SH_CACHE_H - #ifdef __KERNEL__ - -+#include <linux/const.h> - #include <linux/init.h> - #include <cpu/cache.h> - --#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - #define __read_mostly __attribute__((__section__(".data..read_mostly"))) - -diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c -index afeb710..d1d1289 100644 ---- a/arch/sh/mm/mmap.c -+++ b/arch/sh/mm/mmap.c -@@ -74,8 +74,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, - addr = PAGE_ALIGN(addr); - - vma = find_vma(mm, addr); -- if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len)) - return addr; - } - -@@ -106,7 +105,7 @@ full_search: - } - return -ENOMEM; - } -- if (likely(!vma || addr + len <= vma->vm_start)) { -+ if (likely(check_heap_stack_gap(vma, addr, len))) { - /* - * Remember the place where we stopped the search: - */ -@@ -157,8 +156,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - addr = PAGE_ALIGN(addr); - - vma = find_vma(mm, addr); -- if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len)) - return addr; - } - -@@ -179,7 +177,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - /* make sure it can fit in the remaining address space */ - if (likely(addr > len)) { - vma = find_vma(mm, addr-len); -- if (!vma || addr <= vma->vm_start) { -+ if (check_heap_stack_gap(vma, addr - len, len)) { - /* remember the address as a hint for next time */ - return (mm->free_area_cache = addr-len); - } -@@ -188,18 +186,18 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - if (unlikely(mm->mmap_base < len)) - goto bottomup; - -- addr = mm->mmap_base-len; -- if (do_colour_align) -- addr = COLOUR_ALIGN_DOWN(addr, pgoff); -+ addr = mm->mmap_base - len; - - do { -+ if (do_colour_align) -+ addr = COLOUR_ALIGN_DOWN(addr, pgoff); - /* - * Lookup failure means no vma is above this address, - * else if new region fits below vma->vm_start, - * return with success: - */ - vma = find_vma(mm, addr); -- if (likely(!vma || addr+len <= vma->vm_start)) { -+ if (likely(check_heap_stack_gap(vma, addr, len))) { - /* remember the address as a hint for next time */ - return (mm->free_area_cache = addr); - } -@@ -209,10 +207,8 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - mm->cached_hole_size = vma->vm_start - addr; - - /* try just below the current vma->vm_start */ -- addr = vma->vm_start-len; -- if (do_colour_align) -- addr = COLOUR_ALIGN_DOWN(addr, pgoff); -- } while (likely(len < vma->vm_start)); -+ addr = skip_heap_stack_gap(vma, len); -+ } while (!IS_ERR_VALUE(addr)); - - bottomup: - /* -diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile -index eddcfb3..b117d90 100644 ---- a/arch/sparc/Makefile -+++ b/arch/sparc/Makefile -@@ -75,7 +75,7 @@ drivers-$(CONFIG_OPROFILE) += arch/sparc/oprofile/ - # Export what is needed by arch/sparc/boot/Makefile - export VMLINUX_INIT VMLINUX_MAIN - VMLINUX_INIT := $(head-y) $(init-y) --VMLINUX_MAIN := $(core-y) kernel/ mm/ fs/ ipc/ security/ crypto/ block/ -+VMLINUX_MAIN := $(core-y) kernel/ mm/ fs/ ipc/ security/ crypto/ block/ grsecurity/ - VMLINUX_MAIN += $(patsubst %/, %/lib.a, $(libs-y)) $(libs-y) - VMLINUX_MAIN += $(drivers-y) $(net-y) - -diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h -index ce35a1c..2e7b8f9 100644 ---- a/arch/sparc/include/asm/atomic_64.h -+++ b/arch/sparc/include/asm/atomic_64.h -@@ -14,18 +14,40 @@ - #define ATOMIC64_INIT(i) { (i) } - - #define atomic_read(v) (*(volatile int *)&(v)->counter) -+static inline int atomic_read_unchecked(const atomic_unchecked_t *v) -+{ -+ return v->counter; -+} - #define atomic64_read(v) (*(volatile long *)&(v)->counter) -+static inline long atomic64_read_unchecked(const atomic64_unchecked_t *v) -+{ -+ return v->counter; -+} - - #define atomic_set(v, i) (((v)->counter) = i) -+static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i) -+{ -+ v->counter = i; -+} - #define atomic64_set(v, i) (((v)->counter) = i) -+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i) -+{ -+ v->counter = i; -+} - - extern void atomic_add(int, atomic_t *); -+extern void atomic_add_unchecked(int, atomic_unchecked_t *); - extern void atomic64_add(long, atomic64_t *); -+extern void atomic64_add_unchecked(long, atomic64_unchecked_t *); - extern void atomic_sub(int, atomic_t *); -+extern void atomic_sub_unchecked(int, atomic_unchecked_t *); - extern void atomic64_sub(long, atomic64_t *); -+extern void atomic64_sub_unchecked(long, atomic64_unchecked_t *); - - extern int atomic_add_ret(int, atomic_t *); -+extern int atomic_add_ret_unchecked(int, atomic_unchecked_t *); - extern long atomic64_add_ret(long, atomic64_t *); -+extern long atomic64_add_ret_unchecked(long, atomic64_unchecked_t *); - extern int atomic_sub_ret(int, atomic_t *); - extern long atomic64_sub_ret(long, atomic64_t *); - -@@ -33,13 +55,29 @@ extern long atomic64_sub_ret(long, atomic64_t *); - #define atomic64_dec_return(v) atomic64_sub_ret(1, v) - - #define atomic_inc_return(v) atomic_add_ret(1, v) -+static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v) -+{ -+ return atomic_add_ret_unchecked(1, v); -+} - #define atomic64_inc_return(v) atomic64_add_ret(1, v) -+static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v) -+{ -+ return atomic64_add_ret_unchecked(1, v); -+} - - #define atomic_sub_return(i, v) atomic_sub_ret(i, v) - #define atomic64_sub_return(i, v) atomic64_sub_ret(i, v) - - #define atomic_add_return(i, v) atomic_add_ret(i, v) -+static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v) -+{ -+ return atomic_add_ret_unchecked(i, v); -+} - #define atomic64_add_return(i, v) atomic64_add_ret(i, v) -+static inline long atomic64_add_return_unchecked(long i, atomic64_unchecked_t *v) -+{ -+ return atomic64_add_ret_unchecked(i, v); -+} - - /* - * atomic_inc_and_test - increment and test -@@ -50,6 +88,10 @@ extern long atomic64_sub_ret(long, atomic64_t *); - * other cases. - */ - #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0) -+static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v) -+{ -+ return atomic_inc_return_unchecked(v) == 0; -+} - #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0) - - #define atomic_sub_and_test(i, v) (atomic_sub_ret(i, v) == 0) -@@ -59,25 +101,60 @@ extern long atomic64_sub_ret(long, atomic64_t *); - #define atomic64_dec_and_test(v) (atomic64_sub_ret(1, v) == 0) - - #define atomic_inc(v) atomic_add(1, v) -+static inline void atomic_inc_unchecked(atomic_unchecked_t *v) -+{ -+ atomic_add_unchecked(1, v); -+} - #define atomic64_inc(v) atomic64_add(1, v) -+static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v) -+{ -+ atomic64_add_unchecked(1, v); -+} - - #define atomic_dec(v) atomic_sub(1, v) -+static inline void atomic_dec_unchecked(atomic_unchecked_t *v) -+{ -+ atomic_sub_unchecked(1, v); -+} - #define atomic64_dec(v) atomic64_sub(1, v) -+static inline void atomic64_dec_unchecked(atomic64_unchecked_t *v) -+{ -+ atomic64_sub_unchecked(1, v); -+} - - #define atomic_add_negative(i, v) (atomic_add_ret(i, v) < 0) - #define atomic64_add_negative(i, v) (atomic64_add_ret(i, v) < 0) - - #define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n))) -+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new) -+{ -+ return cmpxchg(&v->counter, old, new); -+} - #define atomic_xchg(v, new) (xchg(&((v)->counter), new)) -+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new) -+{ -+ return xchg(&v->counter, new); -+} - - static inline int __atomic_add_unless(atomic_t *v, int a, int u) - { -- int c, old; -+ int c, old, new; - c = atomic_read(v); - for (;;) { -- if (unlikely(c == (u))) -+ if (unlikely(c == u)) - break; -- old = atomic_cmpxchg((v), c, c + (a)); -+ -+ asm volatile("addcc %2, %0, %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "tvs %%icc, 6\n" -+#endif -+ -+ : "=r" (new) -+ : "0" (c), "ir" (a) -+ : "cc"); -+ -+ old = atomic_cmpxchg(v, c, new); - if (likely(old == c)) - break; - c = old; -@@ -88,20 +165,35 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u) - #define atomic64_cmpxchg(v, o, n) \ - ((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n))) - #define atomic64_xchg(v, new) (xchg(&((v)->counter), new)) -+static inline long atomic64_xchg_unchecked(atomic64_unchecked_t *v, long new) -+{ -+ return xchg(&v->counter, new); -+} - - static inline long atomic64_add_unless(atomic64_t *v, long a, long u) - { -- long c, old; -+ long c, old, new; - c = atomic64_read(v); - for (;;) { -- if (unlikely(c == (u))) -+ if (unlikely(c == u)) - break; -- old = atomic64_cmpxchg((v), c, c + (a)); -+ -+ asm volatile("addcc %2, %0, %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "tvs %%xcc, 6\n" -+#endif -+ -+ : "=r" (new) -+ : "0" (c), "ir" (a) -+ : "cc"); -+ -+ old = atomic64_cmpxchg(v, c, new); - if (likely(old == c)) - break; - c = old; - } -- return c != (u); -+ return c != u; - } - - #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) -diff --git a/arch/sparc/include/asm/cache.h b/arch/sparc/include/asm/cache.h -index 69358b5..9d0d492 100644 ---- a/arch/sparc/include/asm/cache.h -+++ b/arch/sparc/include/asm/cache.h -@@ -7,10 +7,12 @@ - #ifndef _SPARC_CACHE_H - #define _SPARC_CACHE_H - -+#include <linux/const.h> -+ - #define ARCH_SLAB_MINALIGN __alignof__(unsigned long long) - - #define L1_CACHE_SHIFT 5 --#define L1_CACHE_BYTES 32 -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - #ifdef CONFIG_SPARC32 - #define SMP_CACHE_BYTES_SHIFT 5 -diff --git a/arch/sparc/include/asm/elf_32.h b/arch/sparc/include/asm/elf_32.h -index 4269ca6..e3da77f 100644 ---- a/arch/sparc/include/asm/elf_32.h -+++ b/arch/sparc/include/asm/elf_32.h -@@ -114,6 +114,13 @@ typedef struct { - - #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE 0x10000UL -+ -+#define PAX_DELTA_MMAP_LEN 16 -+#define PAX_DELTA_STACK_LEN 16 -+#endif -+ - /* This yields a mask that user programs can use to figure out what - instruction set this cpu supports. This can NOT be done in userspace - on Sparc. */ -diff --git a/arch/sparc/include/asm/elf_64.h b/arch/sparc/include/asm/elf_64.h -index 7df8b7f..4946269 100644 ---- a/arch/sparc/include/asm/elf_64.h -+++ b/arch/sparc/include/asm/elf_64.h -@@ -180,6 +180,13 @@ typedef struct { - #define ELF_ET_DYN_BASE 0x0000010000000000UL - #define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT) ? 0x10000UL : 0x100000UL) -+ -+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT) ? 14 : 28) -+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT) ? 15 : 29) -+#endif -+ - extern unsigned long sparc64_elf_hwcap; - #define ELF_HWCAP sparc64_elf_hwcap - -diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h -index ca2b344..c6084f89 100644 ---- a/arch/sparc/include/asm/pgalloc_32.h -+++ b/arch/sparc/include/asm/pgalloc_32.h -@@ -37,6 +37,7 @@ BTFIXUPDEF_CALL(void, free_pgd_fast, pgd_t *) - BTFIXUPDEF_CALL(void, pgd_set, pgd_t *, pmd_t *) - #define pgd_set(pgdp,pmdp) BTFIXUP_CALL(pgd_set)(pgdp,pmdp) - #define pgd_populate(MM, PGD, PMD) pgd_set(PGD, PMD) -+#define pgd_populate_kernel(MM, PGD, PMD) pgd_populate((MM), (PGD), (PMD)) - - BTFIXUPDEF_CALL(pmd_t *, pmd_alloc_one, struct mm_struct *, unsigned long) - #define pmd_alloc_one(mm, address) BTFIXUP_CALL(pmd_alloc_one)(mm, address) -diff --git a/arch/sparc/include/asm/pgalloc_64.h b/arch/sparc/include/asm/pgalloc_64.h -index 40b2d7a..22a665b 100644 ---- a/arch/sparc/include/asm/pgalloc_64.h -+++ b/arch/sparc/include/asm/pgalloc_64.h -@@ -26,6 +26,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) - } - - #define pud_populate(MM, PUD, PMD) pud_set(PUD, PMD) -+#define pud_populate_kernel(MM, PUD, PMD) pud_populate((MM), (PUD), (PMD)) - - static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) - { -diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h -index 3d71018..48a11c5 100644 ---- a/arch/sparc/include/asm/pgtable_32.h -+++ b/arch/sparc/include/asm/pgtable_32.h -@@ -45,6 +45,13 @@ BTFIXUPDEF_SIMM13(user_ptrs_per_pgd) - BTFIXUPDEF_INT(page_none) - BTFIXUPDEF_INT(page_copy) - BTFIXUPDEF_INT(page_readonly) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+BTFIXUPDEF_INT(page_shared_noexec) -+BTFIXUPDEF_INT(page_copy_noexec) -+BTFIXUPDEF_INT(page_readonly_noexec) -+#endif -+ - BTFIXUPDEF_INT(page_kernel) - - #define PMD_SHIFT SUN4C_PMD_SHIFT -@@ -66,6 +73,16 @@ extern pgprot_t PAGE_SHARED; - #define PAGE_COPY __pgprot(BTFIXUP_INT(page_copy)) - #define PAGE_READONLY __pgprot(BTFIXUP_INT(page_readonly)) - -+#ifdef CONFIG_PAX_PAGEEXEC -+extern pgprot_t PAGE_SHARED_NOEXEC; -+# define PAGE_COPY_NOEXEC __pgprot(BTFIXUP_INT(page_copy_noexec)) -+# define PAGE_READONLY_NOEXEC __pgprot(BTFIXUP_INT(page_readonly_noexec)) -+#else -+# define PAGE_SHARED_NOEXEC PAGE_SHARED -+# define PAGE_COPY_NOEXEC PAGE_COPY -+# define PAGE_READONLY_NOEXEC PAGE_READONLY -+#endif -+ - extern unsigned long page_kernel; - - #ifdef MODULE -diff --git a/arch/sparc/include/asm/pgtsrmmu.h b/arch/sparc/include/asm/pgtsrmmu.h -index f6ae2b2..b03ffc7 100644 ---- a/arch/sparc/include/asm/pgtsrmmu.h -+++ b/arch/sparc/include/asm/pgtsrmmu.h -@@ -115,6 +115,13 @@ - SRMMU_EXEC | SRMMU_REF) - #define SRMMU_PAGE_RDONLY __pgprot(SRMMU_VALID | SRMMU_CACHE | \ - SRMMU_EXEC | SRMMU_REF) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+#define SRMMU_PAGE_SHARED_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_WRITE | SRMMU_REF) -+#define SRMMU_PAGE_COPY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF) -+#define SRMMU_PAGE_RDONLY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF) -+#endif -+ - #define SRMMU_PAGE_KERNEL __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_PRIV | \ - SRMMU_DIRTY | SRMMU_REF) - -diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h -index 9689176..63c18ea 100644 ---- a/arch/sparc/include/asm/spinlock_64.h -+++ b/arch/sparc/include/asm/spinlock_64.h -@@ -92,14 +92,19 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long fla - - /* Multi-reader locks, these are much saner than the 32-bit Sparc ones... */ - --static void inline arch_read_lock(arch_rwlock_t *lock) -+static inline void arch_read_lock(arch_rwlock_t *lock) - { - unsigned long tmp1, tmp2; - - __asm__ __volatile__ ( - "1: ldsw [%2], %0\n" - " brlz,pn %0, 2f\n" --"4: add %0, 1, %1\n" -+"4: addcc %0, 1, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+" tvs %%icc, 6\n" -+#endif -+ - " cas [%2], %0, %1\n" - " cmp %0, %1\n" - " bne,pn %%icc, 1b\n" -@@ -112,10 +117,10 @@ static void inline arch_read_lock(arch_rwlock_t *lock) - " .previous" - : "=&r" (tmp1), "=&r" (tmp2) - : "r" (lock) -- : "memory"); -+ : "memory", "cc"); - } - --static int inline arch_read_trylock(arch_rwlock_t *lock) -+static inline int arch_read_trylock(arch_rwlock_t *lock) - { - int tmp1, tmp2; - -@@ -123,7 +128,12 @@ static int inline arch_read_trylock(arch_rwlock_t *lock) - "1: ldsw [%2], %0\n" - " brlz,a,pn %0, 2f\n" - " mov 0, %0\n" --" add %0, 1, %1\n" -+" addcc %0, 1, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+" tvs %%icc, 6\n" -+#endif -+ - " cas [%2], %0, %1\n" - " cmp %0, %1\n" - " bne,pn %%icc, 1b\n" -@@ -136,13 +146,18 @@ static int inline arch_read_trylock(arch_rwlock_t *lock) - return tmp1; - } - --static void inline arch_read_unlock(arch_rwlock_t *lock) -+static inline void arch_read_unlock(arch_rwlock_t *lock) - { - unsigned long tmp1, tmp2; - - __asm__ __volatile__( - "1: lduw [%2], %0\n" --" sub %0, 1, %1\n" -+" subcc %0, 1, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+" tvs %%icc, 6\n" -+#endif -+ - " cas [%2], %0, %1\n" - " cmp %0, %1\n" - " bne,pn %%xcc, 1b\n" -@@ -152,7 +167,7 @@ static void inline arch_read_unlock(arch_rwlock_t *lock) - : "memory"); - } - --static void inline arch_write_lock(arch_rwlock_t *lock) -+static inline void arch_write_lock(arch_rwlock_t *lock) - { - unsigned long mask, tmp1, tmp2; - -@@ -177,7 +192,7 @@ static void inline arch_write_lock(arch_rwlock_t *lock) - : "memory"); - } - --static void inline arch_write_unlock(arch_rwlock_t *lock) -+static inline void arch_write_unlock(arch_rwlock_t *lock) - { - __asm__ __volatile__( - " stw %%g0, [%0]" -@@ -186,7 +201,7 @@ static void inline arch_write_unlock(arch_rwlock_t *lock) - : "memory"); - } - --static int inline arch_write_trylock(arch_rwlock_t *lock) -+static inline int arch_write_trylock(arch_rwlock_t *lock) - { - unsigned long mask, tmp1, tmp2, result; - -diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h -index c2a1080..21ed218 100644 ---- a/arch/sparc/include/asm/thread_info_32.h -+++ b/arch/sparc/include/asm/thread_info_32.h -@@ -50,6 +50,8 @@ struct thread_info { - unsigned long w_saved; - - struct restart_block restart_block; -+ -+ unsigned long lowest_stack; - }; - - /* -diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h -index 01d057f..13a7d2f 100644 ---- a/arch/sparc/include/asm/thread_info_64.h -+++ b/arch/sparc/include/asm/thread_info_64.h -@@ -63,6 +63,8 @@ struct thread_info { - struct pt_regs *kern_una_regs; - unsigned int kern_una_insn; - -+ unsigned long lowest_stack; -+ - unsigned long fpregs[0] __attribute__ ((aligned(64))); - }; - -@@ -214,10 +216,11 @@ register struct thread_info *current_thread_info_reg asm("g6"); - #define TIF_UNALIGNED 5 /* allowed to do unaligned accesses */ - /* flag bit 6 is available */ - #define TIF_32BIT 7 /* 32-bit binary */ --/* flag bit 8 is available */ -+#define TIF_GRSEC_SETXID 8 /* update credentials on syscall entry/exit */ - #define TIF_SECCOMP 9 /* secure computing */ - #define TIF_SYSCALL_AUDIT 10 /* syscall auditing active */ - #define TIF_SYSCALL_TRACEPOINT 11 /* syscall tracepoint instrumentation */ -+ - /* NOTE: Thread flags >= 12 should be ones we have no interest - * in using in assembly, else we can't use the mask as - * an immediate value in instructions such as andcc. -@@ -236,12 +239,18 @@ register struct thread_info *current_thread_info_reg asm("g6"); - #define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT) - #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT) - #define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG) -+#define _TIF_GRSEC_SETXID (1<<TIF_GRSEC_SETXID) - - #define _TIF_USER_WORK_MASK ((0xff << TI_FLAG_WSAVED_SHIFT) | \ - _TIF_DO_NOTIFY_RESUME_MASK | \ - _TIF_NEED_RESCHED) - #define _TIF_DO_NOTIFY_RESUME_MASK (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING) - -+#define _TIF_WORK_SYSCALL \ -+ (_TIF_SYSCALL_TRACE | _TIF_SECCOMP | _TIF_SYSCALL_AUDIT | \ -+ _TIF_SYSCALL_TRACEPOINT | _TIF_GRSEC_SETXID) -+ -+ - /* - * Thread-synchronous status. - * -diff --git a/arch/sparc/include/asm/uaccess.h b/arch/sparc/include/asm/uaccess.h -index e88fbe5..96b0ce5 100644 ---- a/arch/sparc/include/asm/uaccess.h -+++ b/arch/sparc/include/asm/uaccess.h -@@ -1,5 +1,13 @@ - #ifndef ___ASM_SPARC_UACCESS_H - #define ___ASM_SPARC_UACCESS_H -+ -+#ifdef __KERNEL__ -+#ifndef __ASSEMBLY__ -+#include <linux/types.h> -+extern void check_object_size(const void *ptr, unsigned long n, bool to); -+#endif -+#endif -+ - #if defined(__sparc__) && defined(__arch64__) - #include <asm/uaccess_64.h> - #else -diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h -index 8303ac4..07f333d 100644 ---- a/arch/sparc/include/asm/uaccess_32.h -+++ b/arch/sparc/include/asm/uaccess_32.h -@@ -249,27 +249,46 @@ extern unsigned long __copy_user(void __user *to, const void __user *from, unsig - - static inline unsigned long copy_to_user(void __user *to, const void *from, unsigned long n) - { -- if (n && __access_ok((unsigned long) to, n)) -+ if ((long)n < 0) -+ return n; -+ -+ if (n && __access_ok((unsigned long) to, n)) { -+ if (!__builtin_constant_p(n)) -+ check_object_size(from, n, true); - return __copy_user(to, (__force void __user *) from, n); -- else -+ } else - return n; - } - - static inline unsigned long __copy_to_user(void __user *to, const void *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ -+ if (!__builtin_constant_p(n)) -+ check_object_size(from, n, true); -+ - return __copy_user(to, (__force void __user *) from, n); - } - - static inline unsigned long copy_from_user(void *to, const void __user *from, unsigned long n) - { -- if (n && __access_ok((unsigned long) from, n)) -+ if ((long)n < 0) -+ return n; -+ -+ if (n && __access_ok((unsigned long) from, n)) { -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); - return __copy_user((__force void __user *) to, from, n); -- else -+ } else - return n; - } - - static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - return __copy_user((__force void __user *) to, from, n); - } - -diff --git a/arch/sparc/include/asm/uaccess_64.h b/arch/sparc/include/asm/uaccess_64.h -index a1091afb..380228e 100644 ---- a/arch/sparc/include/asm/uaccess_64.h -+++ b/arch/sparc/include/asm/uaccess_64.h -@@ -10,6 +10,7 @@ - #include <linux/compiler.h> - #include <linux/string.h> - #include <linux/thread_info.h> -+#include <linux/kernel.h> - #include <asm/asi.h> - #include <asm/spitfire.h> - #include <asm-generic/uaccess-unaligned.h> -@@ -212,8 +213,15 @@ extern unsigned long copy_from_user_fixup(void *to, const void __user *from, - static inline unsigned long __must_check - copy_from_user(void *to, const void __user *from, unsigned long size) - { -- unsigned long ret = ___copy_from_user(to, from, size); -+ unsigned long ret; - -+ if ((long)size < 0 || size > INT_MAX) -+ return size; -+ -+ if (!__builtin_constant_p(size)) -+ check_object_size(to, size, false); -+ -+ ret = ___copy_from_user(to, from, size); - if (unlikely(ret)) - ret = copy_from_user_fixup(to, from, size); - -@@ -229,8 +237,15 @@ extern unsigned long copy_to_user_fixup(void __user *to, const void *from, - static inline unsigned long __must_check - copy_to_user(void __user *to, const void *from, unsigned long size) - { -- unsigned long ret = ___copy_to_user(to, from, size); -+ unsigned long ret; - -+ if ((long)size < 0 || size > INT_MAX) -+ return size; -+ -+ if (!__builtin_constant_p(size)) -+ check_object_size(from, size, true); -+ -+ ret = ___copy_to_user(to, from, size); - if (unlikely(ret)) - ret = copy_to_user_fixup(to, from, size); - return ret; -diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile -index cb85458..e063f17 100644 ---- a/arch/sparc/kernel/Makefile -+++ b/arch/sparc/kernel/Makefile -@@ -3,7 +3,7 @@ - # - - asflags-y := -ansi --ccflags-y := -Werror -+#ccflags-y := -Werror - - extra-y := head_$(BITS).o - extra-y += init_task.o -diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c -index efa0754..74b03fe 100644 ---- a/arch/sparc/kernel/process_32.c -+++ b/arch/sparc/kernel/process_32.c -@@ -200,7 +200,7 @@ void __show_backtrace(unsigned long fp) - rw->ins[4], rw->ins[5], - rw->ins[6], - rw->ins[7]); -- printk("%pS\n", (void *) rw->ins[7]); -+ printk("%pA\n", (void *) rw->ins[7]); - rw = (struct reg_window32 *) rw->ins[6]; - } - spin_unlock_irqrestore(&sparc_backtrace_lock, flags); -@@ -267,14 +267,14 @@ void show_regs(struct pt_regs *r) - - printk("PSR: %08lx PC: %08lx NPC: %08lx Y: %08lx %s\n", - r->psr, r->pc, r->npc, r->y, print_tainted()); -- printk("PC: <%pS>\n", (void *) r->pc); -+ printk("PC: <%pA>\n", (void *) r->pc); - printk("%%G: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n", - r->u_regs[0], r->u_regs[1], r->u_regs[2], r->u_regs[3], - r->u_regs[4], r->u_regs[5], r->u_regs[6], r->u_regs[7]); - printk("%%O: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n", - r->u_regs[8], r->u_regs[9], r->u_regs[10], r->u_regs[11], - r->u_regs[12], r->u_regs[13], r->u_regs[14], r->u_regs[15]); -- printk("RPC: <%pS>\n", (void *) r->u_regs[15]); -+ printk("RPC: <%pA>\n", (void *) r->u_regs[15]); - - printk("%%L: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n", - rw->locals[0], rw->locals[1], rw->locals[2], rw->locals[3], -@@ -309,7 +309,7 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp) - rw = (struct reg_window32 *) fp; - pc = rw->ins[7]; - printk("[%08lx : ", pc); -- printk("%pS ] ", (void *) pc); -+ printk("%pA ] ", (void *) pc); - fp = rw->ins[6]; - } while (++count < 16); - printk("\n"); -diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c -index aff0c72..9067b39 100644 ---- a/arch/sparc/kernel/process_64.c -+++ b/arch/sparc/kernel/process_64.c -@@ -179,14 +179,14 @@ static void show_regwindow(struct pt_regs *regs) - printk("i4: %016lx i5: %016lx i6: %016lx i7: %016lx\n", - rwk->ins[4], rwk->ins[5], rwk->ins[6], rwk->ins[7]); - if (regs->tstate & TSTATE_PRIV) -- printk("I7: <%pS>\n", (void *) rwk->ins[7]); -+ printk("I7: <%pA>\n", (void *) rwk->ins[7]); - } - - void show_regs(struct pt_regs *regs) - { - printk("TSTATE: %016lx TPC: %016lx TNPC: %016lx Y: %08x %s\n", regs->tstate, - regs->tpc, regs->tnpc, regs->y, print_tainted()); -- printk("TPC: <%pS>\n", (void *) regs->tpc); -+ printk("TPC: <%pA>\n", (void *) regs->tpc); - printk("g0: %016lx g1: %016lx g2: %016lx g3: %016lx\n", - regs->u_regs[0], regs->u_regs[1], regs->u_regs[2], - regs->u_regs[3]); -@@ -199,7 +199,7 @@ void show_regs(struct pt_regs *regs) - printk("o4: %016lx o5: %016lx sp: %016lx ret_pc: %016lx\n", - regs->u_regs[12], regs->u_regs[13], regs->u_regs[14], - regs->u_regs[15]); -- printk("RPC: <%pS>\n", (void *) regs->u_regs[15]); -+ printk("RPC: <%pA>\n", (void *) regs->u_regs[15]); - show_regwindow(regs); - show_stack(current, (unsigned long *) regs->u_regs[UREG_FP]); - } -@@ -284,7 +284,7 @@ void arch_trigger_all_cpu_backtrace(void) - ((tp && tp->task) ? tp->task->pid : -1)); - - if (gp->tstate & TSTATE_PRIV) { -- printk(" TPC[%pS] O7[%pS] I7[%pS] RPC[%pS]\n", -+ printk(" TPC[%pA] O7[%pA] I7[%pA] RPC[%pA]\n", - (void *) gp->tpc, - (void *) gp->o7, - (void *) gp->i7, -diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c -index 6f97c07..b1300ec 100644 ---- a/arch/sparc/kernel/ptrace_64.c -+++ b/arch/sparc/kernel/ptrace_64.c -@@ -1057,6 +1057,10 @@ long arch_ptrace(struct task_struct *child, long request, - return ret; - } - -+#ifdef CONFIG_GRKERNSEC_SETXID -+extern void gr_delayed_cred_worker(void); -+#endif -+ - asmlinkage int syscall_trace_enter(struct pt_regs *regs) - { - int ret = 0; -@@ -1064,6 +1068,11 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs) - /* do the secure computing check first */ - secure_computing(regs->u_regs[UREG_G1]); - -+#ifdef CONFIG_GRKERNSEC_SETXID -+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID))) -+ gr_delayed_cred_worker(); -+#endif -+ - if (test_thread_flag(TIF_SYSCALL_TRACE)) - ret = tracehook_report_syscall_entry(regs); - -@@ -1084,6 +1093,11 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs) - - asmlinkage void syscall_trace_leave(struct pt_regs *regs) - { -+#ifdef CONFIG_GRKERNSEC_SETXID -+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID))) -+ gr_delayed_cred_worker(); -+#endif -+ - audit_syscall_exit(regs); - - if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT))) -diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c -index 42b282f..28ce9f2 100644 ---- a/arch/sparc/kernel/sys_sparc_32.c -+++ b/arch/sparc/kernel/sys_sparc_32.c -@@ -56,7 +56,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi - if (ARCH_SUN4C && len > 0x20000000) - return -ENOMEM; - if (!addr) -- addr = TASK_UNMAPPED_BASE; -+ addr = current->mm->mmap_base; - - if (flags & MAP_SHARED) - addr = COLOUR_ALIGN(addr); -@@ -71,7 +71,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi - } - if (TASK_SIZE - PAGE_SIZE - len < addr) - return -ENOMEM; -- if (!vmm || addr + len <= vmm->vm_start) -+ if (check_heap_stack_gap(vmm, addr, len)) - return addr; - addr = vmm->vm_end; - if (flags & MAP_SHARED) -diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c -index 3ee51f1..2ba4913 100644 ---- a/arch/sparc/kernel/sys_sparc_64.c -+++ b/arch/sparc/kernel/sys_sparc_64.c -@@ -124,7 +124,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi - /* We do not accept a shared mapping if it would violate - * cache aliasing constraints. - */ -- if ((flags & MAP_SHARED) && -+ if ((filp || (flags & MAP_SHARED)) && - ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))) - return -EINVAL; - return addr; -@@ -139,6 +139,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi - if (filp || (flags & MAP_SHARED)) - do_color_align = 1; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); -@@ -146,15 +150,14 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi - addr = PAGE_ALIGN(addr); - - vma = find_vma(mm, addr); -- if (task_size - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len)) - return addr; - } - - if (len > mm->cached_hole_size) { -- start_addr = addr = mm->free_area_cache; -+ start_addr = addr = mm->free_area_cache; - } else { -- start_addr = addr = TASK_UNMAPPED_BASE; -+ start_addr = addr = mm->mmap_base; - mm->cached_hole_size = 0; - } - -@@ -174,14 +177,14 @@ full_search: - vma = find_vma(mm, VA_EXCLUDE_END); - } - if (unlikely(task_size < addr)) { -- if (start_addr != TASK_UNMAPPED_BASE) { -- start_addr = addr = TASK_UNMAPPED_BASE; -+ if (start_addr != mm->mmap_base) { -+ start_addr = addr = mm->mmap_base; - mm->cached_hole_size = 0; - goto full_search; - } - return -ENOMEM; - } -- if (likely(!vma || addr + len <= vma->vm_start)) { -+ if (likely(check_heap_stack_gap(vma, addr, len))) { - /* - * Remember the place where we stopped the search: - */ -@@ -215,7 +218,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - /* We do not accept a shared mapping if it would violate - * cache aliasing constraints. - */ -- if ((flags & MAP_SHARED) && -+ if ((filp || (flags & MAP_SHARED)) && - ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))) - return -EINVAL; - return addr; -@@ -236,8 +239,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - addr = PAGE_ALIGN(addr); - - vma = find_vma(mm, addr); -- if (task_size - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len)) - return addr; - } - -@@ -258,7 +260,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - /* make sure it can fit in the remaining address space */ - if (likely(addr > len)) { - vma = find_vma(mm, addr-len); -- if (!vma || addr <= vma->vm_start) { -+ if (check_heap_stack_gap(vma, addr - len, len)) { - /* remember the address as a hint for next time */ - return (mm->free_area_cache = addr-len); - } -@@ -267,18 +269,18 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - if (unlikely(mm->mmap_base < len)) - goto bottomup; - -- addr = mm->mmap_base-len; -- if (do_color_align) -- addr = COLOUR_ALIGN_DOWN(addr, pgoff); -+ addr = mm->mmap_base - len; - - do { -+ if (do_color_align) -+ addr = COLOUR_ALIGN_DOWN(addr, pgoff); - /* - * Lookup failure means no vma is above this address, - * else if new region fits below vma->vm_start, - * return with success: - */ - vma = find_vma(mm, addr); -- if (likely(!vma || addr+len <= vma->vm_start)) { -+ if (likely(check_heap_stack_gap(vma, addr, len))) { - /* remember the address as a hint for next time */ - return (mm->free_area_cache = addr); - } -@@ -288,10 +290,8 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - mm->cached_hole_size = vma->vm_start - addr; - - /* try just below the current vma->vm_start */ -- addr = vma->vm_start-len; -- if (do_color_align) -- addr = COLOUR_ALIGN_DOWN(addr, pgoff); -- } while (likely(len < vma->vm_start)); -+ addr = skip_heap_stack_gap(vma, len); -+ } while (!IS_ERR_VALUE(addr)); - - bottomup: - /* -@@ -390,6 +390,12 @@ void arch_pick_mmap_layout(struct mm_struct *mm) - gap == RLIM_INFINITY || - sysctl_legacy_va_layout) { - mm->mmap_base = TASK_UNMAPPED_BASE + random_factor; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } else { -@@ -402,6 +408,12 @@ void arch_pick_mmap_layout(struct mm_struct *mm) - gap = (task_size / 6 * 5); - - mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area_topdown; - mm->unmap_area = arch_unmap_area_topdown; - } -diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S -index 1d7e274..b39c527 100644 ---- a/arch/sparc/kernel/syscalls.S -+++ b/arch/sparc/kernel/syscalls.S -@@ -62,7 +62,7 @@ sys32_rt_sigreturn: - #endif - .align 32 - 1: ldx [%g6 + TI_FLAGS], %l5 -- andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0 -+ andcc %l5, _TIF_WORK_SYSCALL, %g0 - be,pt %icc, rtrap - nop - call syscall_trace_leave -@@ -179,7 +179,7 @@ linux_sparc_syscall32: - - srl %i5, 0, %o5 ! IEU1 - srl %i2, 0, %o2 ! IEU0 Group -- andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0 -+ andcc %l0, _TIF_WORK_SYSCALL, %g0 - bne,pn %icc, linux_syscall_trace32 ! CTI - mov %i0, %l5 ! IEU1 - call %l7 ! CTI Group brk forced -@@ -202,7 +202,7 @@ linux_sparc_syscall: - - mov %i3, %o3 ! IEU1 - mov %i4, %o4 ! IEU0 Group -- andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0 -+ andcc %l0, _TIF_WORK_SYSCALL, %g0 - bne,pn %icc, linux_syscall_trace ! CTI Group - mov %i0, %l5 ! IEU0 - 2: call %l7 ! CTI Group brk forced -@@ -226,7 +226,7 @@ ret_sys_call: - - cmp %o0, -ERESTART_RESTARTBLOCK - bgeu,pn %xcc, 1f -- andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %l6 -+ andcc %l0, _TIF_WORK_SYSCALL, %l6 - 80: - /* System call success, clear Carry condition code. */ - andn %g3, %g2, %g3 -@@ -241,7 +241,7 @@ ret_sys_call: - /* System call failure, set Carry condition code. - * Also, get abs(errno) to return to the process. - */ -- andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %l6 -+ andcc %l0, _TIF_WORK_SYSCALL, %l6 - sub %g0, %o0, %o0 - or %g3, %g2, %g3 - stx %o0, [%sp + PTREGS_OFF + PT_V9_I0] -diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c -index d2de213..6b22bc3 100644 ---- a/arch/sparc/kernel/traps_32.c -+++ b/arch/sparc/kernel/traps_32.c -@@ -44,6 +44,8 @@ static void instruction_dump(unsigned long *pc) - #define __SAVE __asm__ __volatile__("save %sp, -0x40, %sp\n\t") - #define __RESTORE __asm__ __volatile__("restore %g0, %g0, %g0\n\t") - -+extern void gr_handle_kernel_exploit(void); -+ - void die_if_kernel(char *str, struct pt_regs *regs) - { - static int die_counter; -@@ -76,15 +78,17 @@ void die_if_kernel(char *str, struct pt_regs *regs) - count++ < 30 && - (((unsigned long) rw) >= PAGE_OFFSET) && - !(((unsigned long) rw) & 0x7)) { -- printk("Caller[%08lx]: %pS\n", rw->ins[7], -+ printk("Caller[%08lx]: %pA\n", rw->ins[7], - (void *) rw->ins[7]); - rw = (struct reg_window32 *)rw->ins[6]; - } - } - printk("Instruction DUMP:"); - instruction_dump ((unsigned long *) regs->pc); -- if(regs->psr & PSR_PS) -+ if(regs->psr & PSR_PS) { -+ gr_handle_kernel_exploit(); - do_exit(SIGKILL); -+ } - do_exit(SIGSEGV); - } - -diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c -index c72fdf5..743a344 100644 ---- a/arch/sparc/kernel/traps_64.c -+++ b/arch/sparc/kernel/traps_64.c -@@ -75,7 +75,7 @@ static void dump_tl1_traplog(struct tl1_traplog *p) - i + 1, - p->trapstack[i].tstate, p->trapstack[i].tpc, - p->trapstack[i].tnpc, p->trapstack[i].tt); -- printk("TRAPLOG: TPC<%pS>\n", (void *) p->trapstack[i].tpc); -+ printk("TRAPLOG: TPC<%pA>\n", (void *) p->trapstack[i].tpc); - } - } - -@@ -95,6 +95,12 @@ void bad_trap(struct pt_regs *regs, long lvl) - - lvl -= 0x100; - if (regs->tstate & TSTATE_PRIV) { -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ if (lvl == 6) -+ pax_report_refcount_overflow(regs); -+#endif -+ - sprintf(buffer, "Kernel bad sw trap %lx", lvl); - die_if_kernel(buffer, regs); - } -@@ -113,11 +119,16 @@ void bad_trap(struct pt_regs *regs, long lvl) - void bad_trap_tl1(struct pt_regs *regs, long lvl) - { - char buffer[32]; -- -+ - if (notify_die(DIE_TRAP_TL1, "bad trap tl1", regs, - 0, lvl, SIGTRAP) == NOTIFY_STOP) - return; - -+#ifdef CONFIG_PAX_REFCOUNT -+ if (lvl == 6) -+ pax_report_refcount_overflow(regs); -+#endif -+ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - - sprintf (buffer, "Bad trap %lx at tl>0", lvl); -@@ -1141,7 +1152,7 @@ static void cheetah_log_errors(struct pt_regs *regs, struct cheetah_err_info *in - regs->tpc, regs->tnpc, regs->u_regs[UREG_I7], regs->tstate); - printk("%s" "ERROR(%d): ", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id()); -- printk("TPC<%pS>\n", (void *) regs->tpc); -+ printk("TPC<%pA>\n", (void *) regs->tpc); - printk("%s" "ERROR(%d): M_SYND(%lx), E_SYND(%lx)%s%s\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - (afsr & CHAFSR_M_SYNDROME) >> CHAFSR_M_SYNDROME_SHIFT, -@@ -1748,7 +1759,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs) - smp_processor_id(), - (type & 0x1) ? 'I' : 'D', - regs->tpc); -- printk(KERN_EMERG "TPC<%pS>\n", (void *) regs->tpc); -+ printk(KERN_EMERG "TPC<%pA>\n", (void *) regs->tpc); - panic("Irrecoverable Cheetah+ parity error."); - } - -@@ -1756,7 +1767,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs) - smp_processor_id(), - (type & 0x1) ? 'I' : 'D', - regs->tpc); -- printk(KERN_WARNING "TPC<%pS>\n", (void *) regs->tpc); -+ printk(KERN_WARNING "TPC<%pA>\n", (void *) regs->tpc); - } - - struct sun4v_error_entry { -@@ -1963,9 +1974,9 @@ void sun4v_itlb_error_report(struct pt_regs *regs, int tl) - - printk(KERN_EMERG "SUN4V-ITLB: Error at TPC[%lx], tl %d\n", - regs->tpc, tl); -- printk(KERN_EMERG "SUN4V-ITLB: TPC<%pS>\n", (void *) regs->tpc); -+ printk(KERN_EMERG "SUN4V-ITLB: TPC<%pA>\n", (void *) regs->tpc); - printk(KERN_EMERG "SUN4V-ITLB: O7[%lx]\n", regs->u_regs[UREG_I7]); -- printk(KERN_EMERG "SUN4V-ITLB: O7<%pS>\n", -+ printk(KERN_EMERG "SUN4V-ITLB: O7<%pA>\n", - (void *) regs->u_regs[UREG_I7]); - printk(KERN_EMERG "SUN4V-ITLB: vaddr[%lx] ctx[%lx] " - "pte[%lx] error[%lx]\n", -@@ -1987,9 +1998,9 @@ void sun4v_dtlb_error_report(struct pt_regs *regs, int tl) - - printk(KERN_EMERG "SUN4V-DTLB: Error at TPC[%lx], tl %d\n", - regs->tpc, tl); -- printk(KERN_EMERG "SUN4V-DTLB: TPC<%pS>\n", (void *) regs->tpc); -+ printk(KERN_EMERG "SUN4V-DTLB: TPC<%pA>\n", (void *) regs->tpc); - printk(KERN_EMERG "SUN4V-DTLB: O7[%lx]\n", regs->u_regs[UREG_I7]); -- printk(KERN_EMERG "SUN4V-DTLB: O7<%pS>\n", -+ printk(KERN_EMERG "SUN4V-DTLB: O7<%pA>\n", - (void *) regs->u_regs[UREG_I7]); - printk(KERN_EMERG "SUN4V-DTLB: vaddr[%lx] ctx[%lx] " - "pte[%lx] error[%lx]\n", -@@ -2195,13 +2206,13 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp) - fp = (unsigned long)sf->fp + STACK_BIAS; - } - -- printk(" [%016lx] %pS\n", pc, (void *) pc); -+ printk(" [%016lx] %pA\n", pc, (void *) pc); - #ifdef CONFIG_FUNCTION_GRAPH_TRACER - if ((pc + 8UL) == (unsigned long) &return_to_handler) { - int index = tsk->curr_ret_stack; - if (tsk->ret_stack && index >= graph) { - pc = tsk->ret_stack[index - graph].ret; -- printk(" [%016lx] %pS\n", pc, (void *) pc); -+ printk(" [%016lx] %pA\n", pc, (void *) pc); - graph++; - } - } -@@ -2226,6 +2237,8 @@ static inline struct reg_window *kernel_stack_up(struct reg_window *rw) - return (struct reg_window *) (fp + STACK_BIAS); - } - -+extern void gr_handle_kernel_exploit(void); -+ - void die_if_kernel(char *str, struct pt_regs *regs) - { - static int die_counter; -@@ -2254,7 +2267,7 @@ void die_if_kernel(char *str, struct pt_regs *regs) - while (rw && - count++ < 30 && - kstack_valid(tp, (unsigned long) rw)) { -- printk("Caller[%016lx]: %pS\n", rw->ins[7], -+ printk("Caller[%016lx]: %pA\n", rw->ins[7], - (void *) rw->ins[7]); - - rw = kernel_stack_up(rw); -@@ -2267,8 +2280,10 @@ void die_if_kernel(char *str, struct pt_regs *regs) - } - user_instruction_dump ((unsigned int __user *) regs->tpc); - } -- if (regs->tstate & TSTATE_PRIV) -+ if (regs->tstate & TSTATE_PRIV) { -+ gr_handle_kernel_exploit(); - do_exit(SIGKILL); -+ } - do_exit(SIGSEGV); - } - EXPORT_SYMBOL(die_if_kernel); -diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c -index dae85bc..af1e19d 100644 ---- a/arch/sparc/kernel/unaligned_64.c -+++ b/arch/sparc/kernel/unaligned_64.c -@@ -279,7 +279,7 @@ static void log_unaligned(struct pt_regs *regs) - static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5); - - if (__ratelimit(&ratelimit)) { -- printk("Kernel unaligned access at TPC[%lx] %pS\n", -+ printk("Kernel unaligned access at TPC[%lx] %pA\n", - regs->tpc, (void *) regs->tpc); - } - } -diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile -index a3fc437..fea9957 100644 ---- a/arch/sparc/lib/Makefile -+++ b/arch/sparc/lib/Makefile -@@ -2,7 +2,7 @@ - # - - asflags-y := -ansi -DST_DIV0=0x02 --ccflags-y := -Werror -+#ccflags-y := -Werror - - lib-$(CONFIG_SPARC32) += mul.o rem.o sdiv.o udiv.o umul.o urem.o ashrdi3.o - lib-$(CONFIG_SPARC32) += memcpy.o memset.o -diff --git a/arch/sparc/lib/atomic_64.S b/arch/sparc/lib/atomic_64.S -index 59186e0..f747d7a 100644 ---- a/arch/sparc/lib/atomic_64.S -+++ b/arch/sparc/lib/atomic_64.S -@@ -18,7 +18,12 @@ - atomic_add: /* %o0 = increment, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) - 1: lduw [%o1], %g1 -- add %g1, %o0, %g7 -+ addcc %g1, %o0, %g7 -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ tvs %icc, 6 -+#endif -+ - cas [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %icc, BACKOFF_LABEL(2f, 1b) -@@ -28,12 +33,32 @@ atomic_add: /* %o0 = increment, %o1 = atomic_ptr */ - 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic_add, .-atomic_add - -+ .globl atomic_add_unchecked -+ .type atomic_add_unchecked,#function -+atomic_add_unchecked: /* %o0 = increment, %o1 = atomic_ptr */ -+ BACKOFF_SETUP(%o2) -+1: lduw [%o1], %g1 -+ add %g1, %o0, %g7 -+ cas [%o1], %g1, %g7 -+ cmp %g1, %g7 -+ bne,pn %icc, 2f -+ nop -+ retl -+ nop -+2: BACKOFF_SPIN(%o2, %o3, 1b) -+ .size atomic_add_unchecked, .-atomic_add_unchecked -+ - .globl atomic_sub - .type atomic_sub,#function - atomic_sub: /* %o0 = decrement, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) - 1: lduw [%o1], %g1 -- sub %g1, %o0, %g7 -+ subcc %g1, %o0, %g7 -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ tvs %icc, 6 -+#endif -+ - cas [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %icc, BACKOFF_LABEL(2f, 1b) -@@ -43,12 +68,32 @@ atomic_sub: /* %o0 = decrement, %o1 = atomic_ptr */ - 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic_sub, .-atomic_sub - -+ .globl atomic_sub_unchecked -+ .type atomic_sub_unchecked,#function -+atomic_sub_unchecked: /* %o0 = decrement, %o1 = atomic_ptr */ -+ BACKOFF_SETUP(%o2) -+1: lduw [%o1], %g1 -+ sub %g1, %o0, %g7 -+ cas [%o1], %g1, %g7 -+ cmp %g1, %g7 -+ bne,pn %icc, 2f -+ nop -+ retl -+ nop -+2: BACKOFF_SPIN(%o2, %o3, 1b) -+ .size atomic_sub_unchecked, .-atomic_sub_unchecked -+ - .globl atomic_add_ret - .type atomic_add_ret,#function - atomic_add_ret: /* %o0 = increment, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) - 1: lduw [%o1], %g1 -- add %g1, %o0, %g7 -+ addcc %g1, %o0, %g7 -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ tvs %icc, 6 -+#endif -+ - cas [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %icc, BACKOFF_LABEL(2f, 1b) -@@ -58,12 +103,33 @@ atomic_add_ret: /* %o0 = increment, %o1 = atomic_ptr */ - 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic_add_ret, .-atomic_add_ret - -+ .globl atomic_add_ret_unchecked -+ .type atomic_add_ret_unchecked,#function -+atomic_add_ret_unchecked: /* %o0 = increment, %o1 = atomic_ptr */ -+ BACKOFF_SETUP(%o2) -+1: lduw [%o1], %g1 -+ addcc %g1, %o0, %g7 -+ cas [%o1], %g1, %g7 -+ cmp %g1, %g7 -+ bne,pn %icc, 2f -+ add %g7, %o0, %g7 -+ sra %g7, 0, %o0 -+ retl -+ nop -+2: BACKOFF_SPIN(%o2, %o3, 1b) -+ .size atomic_add_ret_unchecked, .-atomic_add_ret_unchecked -+ - .globl atomic_sub_ret - .type atomic_sub_ret,#function - atomic_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) - 1: lduw [%o1], %g1 -- sub %g1, %o0, %g7 -+ subcc %g1, %o0, %g7 -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ tvs %icc, 6 -+#endif -+ - cas [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %icc, BACKOFF_LABEL(2f, 1b) -@@ -78,7 +144,12 @@ atomic_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */ - atomic64_add: /* %o0 = increment, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) - 1: ldx [%o1], %g1 -- add %g1, %o0, %g7 -+ addcc %g1, %o0, %g7 -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ tvs %xcc, 6 -+#endif -+ - casx [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %xcc, BACKOFF_LABEL(2f, 1b) -@@ -88,12 +159,32 @@ atomic64_add: /* %o0 = increment, %o1 = atomic_ptr */ - 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic64_add, .-atomic64_add - -+ .globl atomic64_add_unchecked -+ .type atomic64_add_unchecked,#function -+atomic64_add_unchecked: /* %o0 = increment, %o1 = atomic_ptr */ -+ BACKOFF_SETUP(%o2) -+1: ldx [%o1], %g1 -+ addcc %g1, %o0, %g7 -+ casx [%o1], %g1, %g7 -+ cmp %g1, %g7 -+ bne,pn %xcc, 2f -+ nop -+ retl -+ nop -+2: BACKOFF_SPIN(%o2, %o3, 1b) -+ .size atomic64_add_unchecked, .-atomic64_add_unchecked -+ - .globl atomic64_sub - .type atomic64_sub,#function - atomic64_sub: /* %o0 = decrement, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) - 1: ldx [%o1], %g1 -- sub %g1, %o0, %g7 -+ subcc %g1, %o0, %g7 -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ tvs %xcc, 6 -+#endif -+ - casx [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %xcc, BACKOFF_LABEL(2f, 1b) -@@ -103,12 +194,32 @@ atomic64_sub: /* %o0 = decrement, %o1 = atomic_ptr */ - 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic64_sub, .-atomic64_sub - -+ .globl atomic64_sub_unchecked -+ .type atomic64_sub_unchecked,#function -+atomic64_sub_unchecked: /* %o0 = decrement, %o1 = atomic_ptr */ -+ BACKOFF_SETUP(%o2) -+1: ldx [%o1], %g1 -+ subcc %g1, %o0, %g7 -+ casx [%o1], %g1, %g7 -+ cmp %g1, %g7 -+ bne,pn %xcc, 2f -+ nop -+ retl -+ nop -+2: BACKOFF_SPIN(%o2, %o3, 1b) -+ .size atomic64_sub_unchecked, .-atomic64_sub_unchecked -+ - .globl atomic64_add_ret - .type atomic64_add_ret,#function - atomic64_add_ret: /* %o0 = increment, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) - 1: ldx [%o1], %g1 -- add %g1, %o0, %g7 -+ addcc %g1, %o0, %g7 -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ tvs %xcc, 6 -+#endif -+ - casx [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %xcc, BACKOFF_LABEL(2f, 1b) -@@ -118,12 +229,33 @@ atomic64_add_ret: /* %o0 = increment, %o1 = atomic_ptr */ - 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic64_add_ret, .-atomic64_add_ret - -+ .globl atomic64_add_ret_unchecked -+ .type atomic64_add_ret_unchecked,#function -+atomic64_add_ret_unchecked: /* %o0 = increment, %o1 = atomic_ptr */ -+ BACKOFF_SETUP(%o2) -+1: ldx [%o1], %g1 -+ addcc %g1, %o0, %g7 -+ casx [%o1], %g1, %g7 -+ cmp %g1, %g7 -+ bne,pn %xcc, 2f -+ add %g7, %o0, %g7 -+ mov %g7, %o0 -+ retl -+ nop -+2: BACKOFF_SPIN(%o2, %o3, 1b) -+ .size atomic64_add_ret_unchecked, .-atomic64_add_ret_unchecked -+ - .globl atomic64_sub_ret - .type atomic64_sub_ret,#function - atomic64_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) - 1: ldx [%o1], %g1 -- sub %g1, %o0, %g7 -+ subcc %g1, %o0, %g7 -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ tvs %xcc, 6 -+#endif -+ - casx [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %xcc, BACKOFF_LABEL(2f, 1b) -diff --git a/arch/sparc/lib/ksyms.c b/arch/sparc/lib/ksyms.c -index f73c224..662af10 100644 ---- a/arch/sparc/lib/ksyms.c -+++ b/arch/sparc/lib/ksyms.c -@@ -136,12 +136,18 @@ EXPORT_SYMBOL(__downgrade_write); - - /* Atomic counter implementation. */ - EXPORT_SYMBOL(atomic_add); -+EXPORT_SYMBOL(atomic_add_unchecked); - EXPORT_SYMBOL(atomic_add_ret); -+EXPORT_SYMBOL(atomic_add_ret_unchecked); - EXPORT_SYMBOL(atomic_sub); -+EXPORT_SYMBOL(atomic_sub_unchecked); - EXPORT_SYMBOL(atomic_sub_ret); - EXPORT_SYMBOL(atomic64_add); -+EXPORT_SYMBOL(atomic64_add_unchecked); - EXPORT_SYMBOL(atomic64_add_ret); -+EXPORT_SYMBOL(atomic64_add_ret_unchecked); - EXPORT_SYMBOL(atomic64_sub); -+EXPORT_SYMBOL(atomic64_sub_unchecked); - EXPORT_SYMBOL(atomic64_sub_ret); - - /* Atomic bit operations. */ -diff --git a/arch/sparc/mm/Makefile b/arch/sparc/mm/Makefile -index 301421c..e2535d1 100644 ---- a/arch/sparc/mm/Makefile -+++ b/arch/sparc/mm/Makefile -@@ -2,7 +2,7 @@ - # - - asflags-y := -ansi --ccflags-y := -Werror -+#ccflags-y := -Werror - - obj-$(CONFIG_SPARC64) += ultra.o tlb.o tsb.o gup.o - obj-y += fault_$(BITS).o -diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c -index df3155a..eb708b8 100644 ---- a/arch/sparc/mm/fault_32.c -+++ b/arch/sparc/mm/fault_32.c -@@ -21,6 +21,9 @@ - #include <linux/perf_event.h> - #include <linux/interrupt.h> - #include <linux/kdebug.h> -+#include <linux/slab.h> -+#include <linux/pagemap.h> -+#include <linux/compiler.h> - - #include <asm/page.h> - #include <asm/pgtable.h> -@@ -207,6 +210,268 @@ static unsigned long compute_si_addr(struct pt_regs *regs, int text_fault) - return safe_compute_effective_address(regs, insn); - } - -+#ifdef CONFIG_PAX_PAGEEXEC -+#ifdef CONFIG_PAX_DLRESOLVE -+static void pax_emuplt_close(struct vm_area_struct *vma) -+{ -+ vma->vm_mm->call_dl_resolve = 0UL; -+} -+ -+static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf) -+{ -+ unsigned int *kaddr; -+ -+ vmf->page = alloc_page(GFP_HIGHUSER); -+ if (!vmf->page) -+ return VM_FAULT_OOM; -+ -+ kaddr = kmap(vmf->page); -+ memset(kaddr, 0, PAGE_SIZE); -+ kaddr[0] = 0x9DE3BFA8U; /* save */ -+ flush_dcache_page(vmf->page); -+ kunmap(vmf->page); -+ return VM_FAULT_MAJOR; -+} -+ -+static const struct vm_operations_struct pax_vm_ops = { -+ .close = pax_emuplt_close, -+ .fault = pax_emuplt_fault -+}; -+ -+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr) -+{ -+ int ret; -+ -+ INIT_LIST_HEAD(&vma->anon_vma_chain); -+ vma->vm_mm = current->mm; -+ vma->vm_start = addr; -+ vma->vm_end = addr + PAGE_SIZE; -+ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC; -+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); -+ vma->vm_ops = &pax_vm_ops; -+ -+ ret = insert_vm_struct(current->mm, vma); -+ if (ret) -+ return ret; -+ -+ ++current->mm->total_vm; -+ return 0; -+} -+#endif -+ -+/* -+ * PaX: decide what to do with offenders (regs->pc = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when patched PLT trampoline was detected -+ * 3 when unpatched PLT trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ -+#ifdef CONFIG_PAX_EMUPLT -+ int err; -+ -+ do { /* PaX: patched PLT emulation #1 */ -+ unsigned int sethi1, sethi2, jmpl; -+ -+ err = get_user(sethi1, (unsigned int *)regs->pc); -+ err |= get_user(sethi2, (unsigned int *)(regs->pc+4)); -+ err |= get_user(jmpl, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi1 & 0xFFC00000U) == 0x03000000U && -+ (sethi2 & 0xFFC00000U) == 0x03000000U && -+ (jmpl & 0xFFFFE000U) == 0x81C06000U) -+ { -+ unsigned int addr; -+ -+ regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10; -+ addr = regs->u_regs[UREG_G1]; -+ addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U); -+ regs->pc = addr; -+ regs->npc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ { /* PaX: patched PLT emulation #2 */ -+ unsigned int ba; -+ -+ err = get_user(ba, (unsigned int *)regs->pc); -+ -+ if (!err && (ba & 0xFFC00000U) == 0x30800000U) { -+ unsigned int addr; -+ -+ addr = regs->pc + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2); -+ regs->pc = addr; -+ regs->npc = addr+4; -+ return 2; -+ } -+ } -+ -+ do { /* PaX: patched PLT emulation #3 */ -+ unsigned int sethi, jmpl, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->pc); -+ err |= get_user(jmpl, (unsigned int *)(regs->pc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ (jmpl & 0xFFFFE000U) == 0x81C06000U && -+ nop == 0x01000000U) -+ { -+ unsigned int addr; -+ -+ addr = (sethi & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G1] = addr; -+ addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U); -+ regs->pc = addr; -+ regs->npc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation step 1 */ -+ unsigned int sethi, ba, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->pc); -+ err |= get_user(ba, (unsigned int *)(regs->pc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) && -+ nop == 0x01000000U) -+ { -+ unsigned int addr, save, call; -+ -+ if ((ba & 0xFFC00000U) == 0x30800000U) -+ addr = regs->pc + 4 + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2); -+ else -+ addr = regs->pc + 4 + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2); -+ -+ err = get_user(save, (unsigned int *)addr); -+ err |= get_user(call, (unsigned int *)(addr+4)); -+ err |= get_user(nop, (unsigned int *)(addr+8)); -+ if (err) -+ break; -+ -+#ifdef CONFIG_PAX_DLRESOLVE -+ if (save == 0x9DE3BFA8U && -+ (call & 0xC0000000U) == 0x40000000U && -+ nop == 0x01000000U) -+ { -+ struct vm_area_struct *vma; -+ unsigned long call_dl_resolve; -+ -+ down_read(&current->mm->mmap_sem); -+ call_dl_resolve = current->mm->call_dl_resolve; -+ up_read(&current->mm->mmap_sem); -+ if (likely(call_dl_resolve)) -+ goto emulate; -+ -+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); -+ -+ down_write(&current->mm->mmap_sem); -+ if (current->mm->call_dl_resolve) { -+ call_dl_resolve = current->mm->call_dl_resolve; -+ up_write(&current->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ goto emulate; -+ } -+ -+ call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE); -+ if (!vma || (call_dl_resolve & ~PAGE_MASK)) { -+ up_write(&current->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ if (pax_insert_vma(vma, call_dl_resolve)) { -+ up_write(&current->mm->mmap_sem); -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ current->mm->call_dl_resolve = call_dl_resolve; -+ up_write(&current->mm->mmap_sem); -+ -+emulate: -+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10; -+ regs->pc = call_dl_resolve; -+ regs->npc = addr+4; -+ return 3; -+ } -+#endif -+ -+ /* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */ -+ if ((save & 0xFFC00000U) == 0x05000000U && -+ (call & 0xFFFFE000U) == 0x85C0A000U && -+ nop == 0x01000000U) -+ { -+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G2] = addr + 4; -+ addr = (save & 0x003FFFFFU) << 10; -+ addr += (((call | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U); -+ regs->pc = addr; -+ regs->npc = addr+4; -+ return 3; -+ } -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation step 2 */ -+ unsigned int save, call, nop; -+ -+ err = get_user(save, (unsigned int *)(regs->pc-4)); -+ err |= get_user(call, (unsigned int *)regs->pc); -+ err |= get_user(nop, (unsigned int *)(regs->pc+4)); -+ if (err) -+ break; -+ -+ if (save == 0x9DE3BFA8U && -+ (call & 0xC0000000U) == 0x40000000U && -+ nop == 0x01000000U) -+ { -+ unsigned int dl_resolve = regs->pc + ((((call | 0xC0000000U) ^ 0x20000000U) + 0x20000000U) << 2); -+ -+ regs->u_regs[UREG_RETPC] = regs->pc; -+ regs->pc = dl_resolve; -+ regs->npc = dl_resolve+4; -+ return 3; -+ } -+ } while (0); -+#endif -+ -+ return 1; -+} -+ -+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 8; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - static noinline void do_fault_siginfo(int code, int sig, struct pt_regs *regs, - int text_fault) - { -@@ -282,6 +547,24 @@ good_area: - if(!(vma->vm_flags & VM_WRITE)) - goto bad_area; - } else { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && text_fault && !(vma->vm_flags & VM_EXEC)) { -+ up_read(&mm->mmap_sem); -+ switch (pax_handle_fetch_fault(regs)) { -+ -+#ifdef CONFIG_PAX_EMUPLT -+ case 2: -+ case 3: -+ return; -+#endif -+ -+ } -+ pax_report_fault(regs, (void *)regs->pc, (void *)regs->u_regs[UREG_FP]); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ - /* Allow reads even for write-only mappings */ - if(!(vma->vm_flags & (VM_READ | VM_EXEC))) - goto bad_area; -diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c -index 1fe0429..aee2e87 100644 ---- a/arch/sparc/mm/fault_64.c -+++ b/arch/sparc/mm/fault_64.c -@@ -21,6 +21,9 @@ - #include <linux/kprobes.h> - #include <linux/kdebug.h> - #include <linux/percpu.h> -+#include <linux/slab.h> -+#include <linux/pagemap.h> -+#include <linux/compiler.h> - - #include <asm/page.h> - #include <asm/pgtable.h> -@@ -74,7 +77,7 @@ static void __kprobes bad_kernel_pc(struct pt_regs *regs, unsigned long vaddr) - printk(KERN_CRIT "OOPS: Bogus kernel PC [%016lx] in fault handler\n", - regs->tpc); - printk(KERN_CRIT "OOPS: RPC [%016lx]\n", regs->u_regs[15]); -- printk("OOPS: RPC <%pS>\n", (void *) regs->u_regs[15]); -+ printk("OOPS: RPC <%pA>\n", (void *) regs->u_regs[15]); - printk(KERN_CRIT "OOPS: Fault was to vaddr[%lx]\n", vaddr); - dump_stack(); - unhandled_fault(regs->tpc, current, regs); -@@ -272,6 +275,457 @@ static void noinline __kprobes bogus_32bit_fault_address(struct pt_regs *regs, - show_regs(regs); - } - -+#ifdef CONFIG_PAX_PAGEEXEC -+#ifdef CONFIG_PAX_DLRESOLVE -+static void pax_emuplt_close(struct vm_area_struct *vma) -+{ -+ vma->vm_mm->call_dl_resolve = 0UL; -+} -+ -+static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf) -+{ -+ unsigned int *kaddr; -+ -+ vmf->page = alloc_page(GFP_HIGHUSER); -+ if (!vmf->page) -+ return VM_FAULT_OOM; -+ -+ kaddr = kmap(vmf->page); -+ memset(kaddr, 0, PAGE_SIZE); -+ kaddr[0] = 0x9DE3BFA8U; /* save */ -+ flush_dcache_page(vmf->page); -+ kunmap(vmf->page); -+ return VM_FAULT_MAJOR; -+} -+ -+static const struct vm_operations_struct pax_vm_ops = { -+ .close = pax_emuplt_close, -+ .fault = pax_emuplt_fault -+}; -+ -+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr) -+{ -+ int ret; -+ -+ INIT_LIST_HEAD(&vma->anon_vma_chain); -+ vma->vm_mm = current->mm; -+ vma->vm_start = addr; -+ vma->vm_end = addr + PAGE_SIZE; -+ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC; -+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); -+ vma->vm_ops = &pax_vm_ops; -+ -+ ret = insert_vm_struct(current->mm, vma); -+ if (ret) -+ return ret; -+ -+ ++current->mm->total_vm; -+ return 0; -+} -+#endif -+ -+/* -+ * PaX: decide what to do with offenders (regs->tpc = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when patched PLT trampoline was detected -+ * 3 when unpatched PLT trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ -+#ifdef CONFIG_PAX_EMUPLT -+ int err; -+ -+ do { /* PaX: patched PLT emulation #1 */ -+ unsigned int sethi1, sethi2, jmpl; -+ -+ err = get_user(sethi1, (unsigned int *)regs->tpc); -+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi1 & 0xFFC00000U) == 0x03000000U && -+ (sethi2 & 0xFFC00000U) == 0x03000000U && -+ (jmpl & 0xFFFFE000U) == 0x81C06000U) -+ { -+ unsigned long addr; -+ -+ regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10; -+ addr = regs->u_regs[UREG_G1]; -+ addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL); -+ -+ if (test_thread_flag(TIF_32BIT)) -+ addr &= 0xFFFFFFFFUL; -+ -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ { /* PaX: patched PLT emulation #2 */ -+ unsigned int ba; -+ -+ err = get_user(ba, (unsigned int *)regs->tpc); -+ -+ if (!err && (ba & 0xFFC00000U) == 0x30800000U) { -+ unsigned long addr; -+ -+ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2); -+ -+ if (test_thread_flag(TIF_32BIT)) -+ addr &= 0xFFFFFFFFUL; -+ -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } -+ -+ do { /* PaX: patched PLT emulation #3 */ -+ unsigned int sethi, jmpl, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->tpc); -+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ (jmpl & 0xFFFFE000U) == 0x81C06000U && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ -+ addr = (sethi & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G1] = addr; -+ addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL); -+ -+ if (test_thread_flag(TIF_32BIT)) -+ addr &= 0xFFFFFFFFUL; -+ -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #4 */ -+ unsigned int sethi, mov1, call, mov2; -+ -+ err = get_user(sethi, (unsigned int *)regs->tpc); -+ err |= get_user(mov1, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(call, (unsigned int *)(regs->tpc+8)); -+ err |= get_user(mov2, (unsigned int *)(regs->tpc+12)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ mov1 == 0x8210000FU && -+ (call & 0xC0000000U) == 0x40000000U && -+ mov2 == 0x9E100001U) -+ { -+ unsigned long addr; -+ -+ regs->u_regs[UREG_G1] = regs->u_regs[UREG_RETPC]; -+ addr = regs->tpc + 4 + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2); -+ -+ if (test_thread_flag(TIF_32BIT)) -+ addr &= 0xFFFFFFFFUL; -+ -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #5 */ -+ unsigned int sethi, sethi1, sethi2, or1, or2, sllx, jmpl, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->tpc); -+ err |= get_user(sethi1, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+8)); -+ err |= get_user(or1, (unsigned int *)(regs->tpc+12)); -+ err |= get_user(or2, (unsigned int *)(regs->tpc+16)); -+ err |= get_user(sllx, (unsigned int *)(regs->tpc+20)); -+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+24)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+28)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ (sethi1 & 0xFFC00000U) == 0x03000000U && -+ (sethi2 & 0xFFC00000U) == 0x0B000000U && -+ (or1 & 0xFFFFE000U) == 0x82106000U && -+ (or2 & 0xFFFFE000U) == 0x8A116000U && -+ sllx == 0x83287020U && -+ jmpl == 0x81C04005U && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ -+ regs->u_regs[UREG_G1] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU); -+ regs->u_regs[UREG_G1] <<= 32; -+ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU); -+ addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5]; -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #6 */ -+ unsigned int sethi, sethi1, sethi2, sllx, or, jmpl, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->tpc); -+ err |= get_user(sethi1, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+8)); -+ err |= get_user(sllx, (unsigned int *)(regs->tpc+12)); -+ err |= get_user(or, (unsigned int *)(regs->tpc+16)); -+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+20)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+24)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ (sethi1 & 0xFFC00000U) == 0x03000000U && -+ (sethi2 & 0xFFC00000U) == 0x0B000000U && -+ sllx == 0x83287020U && -+ (or & 0xFFFFE000U) == 0x8A116000U && -+ jmpl == 0x81C04005U && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ -+ regs->u_regs[UREG_G1] = (sethi1 & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G1] <<= 32; -+ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or & 0x3FFU); -+ addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5]; -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation step 1 */ -+ unsigned int sethi, ba, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->tpc); -+ err |= get_user(ba, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ unsigned int save, call; -+ unsigned int sethi1, sethi2, or1, or2, sllx, add, jmpl; -+ -+ if ((ba & 0xFFC00000U) == 0x30800000U) -+ addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2); -+ else -+ addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2); -+ -+ if (test_thread_flag(TIF_32BIT)) -+ addr &= 0xFFFFFFFFUL; -+ -+ err = get_user(save, (unsigned int *)addr); -+ err |= get_user(call, (unsigned int *)(addr+4)); -+ err |= get_user(nop, (unsigned int *)(addr+8)); -+ if (err) -+ break; -+ -+#ifdef CONFIG_PAX_DLRESOLVE -+ if (save == 0x9DE3BFA8U && -+ (call & 0xC0000000U) == 0x40000000U && -+ nop == 0x01000000U) -+ { -+ struct vm_area_struct *vma; -+ unsigned long call_dl_resolve; -+ -+ down_read(&current->mm->mmap_sem); -+ call_dl_resolve = current->mm->call_dl_resolve; -+ up_read(&current->mm->mmap_sem); -+ if (likely(call_dl_resolve)) -+ goto emulate; -+ -+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); -+ -+ down_write(&current->mm->mmap_sem); -+ if (current->mm->call_dl_resolve) { -+ call_dl_resolve = current->mm->call_dl_resolve; -+ up_write(&current->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ goto emulate; -+ } -+ -+ call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE); -+ if (!vma || (call_dl_resolve & ~PAGE_MASK)) { -+ up_write(&current->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ if (pax_insert_vma(vma, call_dl_resolve)) { -+ up_write(&current->mm->mmap_sem); -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ current->mm->call_dl_resolve = call_dl_resolve; -+ up_write(&current->mm->mmap_sem); -+ -+emulate: -+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10; -+ regs->tpc = call_dl_resolve; -+ regs->tnpc = addr+4; -+ return 3; -+ } -+#endif -+ -+ /* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */ -+ if ((save & 0xFFC00000U) == 0x05000000U && -+ (call & 0xFFFFE000U) == 0x85C0A000U && -+ nop == 0x01000000U) -+ { -+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G2] = addr + 4; -+ addr = (save & 0x003FFFFFU) << 10; -+ addr += (((call | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL); -+ -+ if (test_thread_flag(TIF_32BIT)) -+ addr &= 0xFFFFFFFFUL; -+ -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 3; -+ } -+ -+ /* PaX: 64-bit PLT stub */ -+ err = get_user(sethi1, (unsigned int *)addr); -+ err |= get_user(sethi2, (unsigned int *)(addr+4)); -+ err |= get_user(or1, (unsigned int *)(addr+8)); -+ err |= get_user(or2, (unsigned int *)(addr+12)); -+ err |= get_user(sllx, (unsigned int *)(addr+16)); -+ err |= get_user(add, (unsigned int *)(addr+20)); -+ err |= get_user(jmpl, (unsigned int *)(addr+24)); -+ err |= get_user(nop, (unsigned int *)(addr+28)); -+ if (err) -+ break; -+ -+ if ((sethi1 & 0xFFC00000U) == 0x09000000U && -+ (sethi2 & 0xFFC00000U) == 0x0B000000U && -+ (or1 & 0xFFFFE000U) == 0x88112000U && -+ (or2 & 0xFFFFE000U) == 0x8A116000U && -+ sllx == 0x89293020U && -+ add == 0x8A010005U && -+ jmpl == 0x89C14000U && -+ nop == 0x01000000U) -+ { -+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G4] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU); -+ regs->u_regs[UREG_G4] <<= 32; -+ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU); -+ regs->u_regs[UREG_G5] += regs->u_regs[UREG_G4]; -+ regs->u_regs[UREG_G4] = addr + 24; -+ addr = regs->u_regs[UREG_G5]; -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 3; -+ } -+ } -+ } while (0); -+ -+#ifdef CONFIG_PAX_DLRESOLVE -+ do { /* PaX: unpatched PLT emulation step 2 */ -+ unsigned int save, call, nop; -+ -+ err = get_user(save, (unsigned int *)(regs->tpc-4)); -+ err |= get_user(call, (unsigned int *)regs->tpc); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+4)); -+ if (err) -+ break; -+ -+ if (save == 0x9DE3BFA8U && -+ (call & 0xC0000000U) == 0x40000000U && -+ nop == 0x01000000U) -+ { -+ unsigned long dl_resolve = regs->tpc + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2); -+ -+ if (test_thread_flag(TIF_32BIT)) -+ dl_resolve &= 0xFFFFFFFFUL; -+ -+ regs->u_regs[UREG_RETPC] = regs->tpc; -+ regs->tpc = dl_resolve; -+ regs->tnpc = dl_resolve+4; -+ return 3; -+ } -+ } while (0); -+#endif -+ -+ do { /* PaX: patched PLT emulation #7, must be AFTER the unpatched PLT emulation */ -+ unsigned int sethi, ba, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->tpc); -+ err |= get_user(ba, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ (ba & 0xFFF00000U) == 0x30600000U && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ -+ addr = (sethi & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G1] = addr; -+ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2); -+ -+ if (test_thread_flag(TIF_32BIT)) -+ addr &= 0xFFFFFFFFUL; -+ -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+#endif -+ -+ return 1; -+} -+ -+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 8; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs) - { - struct mm_struct *mm = current->mm; -@@ -343,6 +797,29 @@ retry: - if (!vma) - goto bad_area; - -+#ifdef CONFIG_PAX_PAGEEXEC -+ /* PaX: detect ITLB misses on non-exec pages */ -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && vma->vm_start <= address && -+ !(vma->vm_flags & VM_EXEC) && (fault_code & FAULT_CODE_ITLB)) -+ { -+ if (address != regs->tpc) -+ goto good_area; -+ -+ up_read(&mm->mmap_sem); -+ switch (pax_handle_fetch_fault(regs)) { -+ -+#ifdef CONFIG_PAX_EMUPLT -+ case 2: -+ case 3: -+ return; -+#endif -+ -+ } -+ pax_report_fault(regs, (void *)regs->tpc, (void *)(regs->u_regs[UREG_FP] + STACK_BIAS)); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ - /* Pure DTLB misses do not tell us whether the fault causing - * load/store/atomic was a write or not, it only says that there - * was no match. So in such a case we (carefully) read the -diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c -index 07e1453..0a7d9e9 100644 ---- a/arch/sparc/mm/hugetlbpage.c -+++ b/arch/sparc/mm/hugetlbpage.c -@@ -67,7 +67,7 @@ full_search: - } - return -ENOMEM; - } -- if (likely(!vma || addr + len <= vma->vm_start)) { -+ if (likely(check_heap_stack_gap(vma, addr, len))) { - /* - * Remember the place where we stopped the search: - */ -@@ -106,7 +106,7 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - /* make sure it can fit in the remaining address space */ - if (likely(addr > len)) { - vma = find_vma(mm, addr-len); -- if (!vma || addr <= vma->vm_start) { -+ if (check_heap_stack_gap(vma, addr - len, len)) { - /* remember the address as a hint for next time */ - return (mm->free_area_cache = addr-len); - } -@@ -115,16 +115,17 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - if (unlikely(mm->mmap_base < len)) - goto bottomup; - -- addr = (mm->mmap_base-len) & HPAGE_MASK; -+ addr = mm->mmap_base - len; - - do { -+ addr &= HPAGE_MASK; - /* - * Lookup failure means no vma is above this address, - * else if new region fits below vma->vm_start, - * return with success: - */ - vma = find_vma(mm, addr); -- if (likely(!vma || addr+len <= vma->vm_start)) { -+ if (likely(check_heap_stack_gap(vma, addr, len))) { - /* remember the address as a hint for next time */ - return (mm->free_area_cache = addr); - } -@@ -134,8 +135,8 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - mm->cached_hole_size = vma->vm_start - addr; - - /* try just below the current vma->vm_start */ -- addr = (vma->vm_start-len) & HPAGE_MASK; -- } while (likely(len < vma->vm_start)); -+ addr = skip_heap_stack_gap(vma, len); -+ } while (!IS_ERR_VALUE(addr)); - - bottomup: - /* -@@ -181,8 +182,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr, - if (addr) { - addr = ALIGN(addr, HPAGE_SIZE); - vma = find_vma(mm, addr); -- if (task_size - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len)) - return addr; - } - if (mm->get_unmapped_area == arch_get_unmapped_area) -diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c -index c5f9021..7591bae 100644 ---- a/arch/sparc/mm/init_32.c -+++ b/arch/sparc/mm/init_32.c -@@ -315,6 +315,9 @@ extern void device_scan(void); - pgprot_t PAGE_SHARED __read_mostly; - EXPORT_SYMBOL(PAGE_SHARED); - -+pgprot_t PAGE_SHARED_NOEXEC __read_mostly; -+EXPORT_SYMBOL(PAGE_SHARED_NOEXEC); -+ - void __init paging_init(void) - { - switch(sparc_cpu_model) { -@@ -343,17 +346,17 @@ void __init paging_init(void) - - /* Initialize the protection map with non-constant, MMU dependent values. */ - protection_map[0] = PAGE_NONE; -- protection_map[1] = PAGE_READONLY; -- protection_map[2] = PAGE_COPY; -- protection_map[3] = PAGE_COPY; -+ protection_map[1] = PAGE_READONLY_NOEXEC; -+ protection_map[2] = PAGE_COPY_NOEXEC; -+ protection_map[3] = PAGE_COPY_NOEXEC; - protection_map[4] = PAGE_READONLY; - protection_map[5] = PAGE_READONLY; - protection_map[6] = PAGE_COPY; - protection_map[7] = PAGE_COPY; - protection_map[8] = PAGE_NONE; -- protection_map[9] = PAGE_READONLY; -- protection_map[10] = PAGE_SHARED; -- protection_map[11] = PAGE_SHARED; -+ protection_map[9] = PAGE_READONLY_NOEXEC; -+ protection_map[10] = PAGE_SHARED_NOEXEC; -+ protection_map[11] = PAGE_SHARED_NOEXEC; - protection_map[12] = PAGE_READONLY; - protection_map[13] = PAGE_READONLY; - protection_map[14] = PAGE_SHARED; -diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c -index cbef74e..c38fead 100644 ---- a/arch/sparc/mm/srmmu.c -+++ b/arch/sparc/mm/srmmu.c -@@ -2200,6 +2200,13 @@ void __init ld_mmu_srmmu(void) - PAGE_SHARED = pgprot_val(SRMMU_PAGE_SHARED); - BTFIXUPSET_INT(page_copy, pgprot_val(SRMMU_PAGE_COPY)); - BTFIXUPSET_INT(page_readonly, pgprot_val(SRMMU_PAGE_RDONLY)); -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ PAGE_SHARED_NOEXEC = pgprot_val(SRMMU_PAGE_SHARED_NOEXEC); -+ BTFIXUPSET_INT(page_copy_noexec, pgprot_val(SRMMU_PAGE_COPY_NOEXEC)); -+ BTFIXUPSET_INT(page_readonly_noexec, pgprot_val(SRMMU_PAGE_RDONLY_NOEXEC)); -+#endif -+ - BTFIXUPSET_INT(page_kernel, pgprot_val(SRMMU_PAGE_KERNEL)); - page_kernel = pgprot_val(SRMMU_PAGE_KERNEL); - -diff --git a/arch/tile/include/asm/atomic_64.h b/arch/tile/include/asm/atomic_64.h -index f4500c6..889656c 100644 ---- a/arch/tile/include/asm/atomic_64.h -+++ b/arch/tile/include/asm/atomic_64.h -@@ -143,6 +143,16 @@ static inline long atomic64_add_unless(atomic64_t *v, long a, long u) - - #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) - -+#define atomic64_read_unchecked(v) atomic64_read(v) -+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i)) -+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v)) -+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v)) -+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v)) -+#define atomic64_inc_unchecked(v) atomic64_inc(v) -+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v) -+#define atomic64_dec_unchecked(v) atomic64_dec(v) -+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n)) -+ - /* Atomic dec and inc don't implement barrier, so provide them if needed. */ - #define smp_mb__before_atomic_dec() smp_mb() - #define smp_mb__after_atomic_dec() smp_mb() -diff --git a/arch/tile/include/asm/cache.h b/arch/tile/include/asm/cache.h -index 392e533..536b092 100644 ---- a/arch/tile/include/asm/cache.h -+++ b/arch/tile/include/asm/cache.h -@@ -15,11 +15,12 @@ - #ifndef _ASM_TILE_CACHE_H - #define _ASM_TILE_CACHE_H - -+#include <linux/const.h> - #include <arch/chip.h> - - /* bytes per L1 data cache line */ - #define L1_CACHE_SHIFT CHIP_L1D_LOG_LINE_SIZE() --#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - /* bytes per L2 cache line */ - #define L2_CACHE_SHIFT CHIP_L2_LOG_LINE_SIZE() -diff --git a/arch/tile/include/asm/uaccess.h b/arch/tile/include/asm/uaccess.h -index ef34d2c..d6ce60c 100644 ---- a/arch/tile/include/asm/uaccess.h -+++ b/arch/tile/include/asm/uaccess.h -@@ -361,9 +361,9 @@ static inline unsigned long __must_check copy_from_user(void *to, - const void __user *from, - unsigned long n) - { -- int sz = __compiletime_object_size(to); -+ size_t sz = __compiletime_object_size(to); - -- if (likely(sz == -1 || sz >= n)) -+ if (likely(sz == (size_t)-1 || sz >= n)) - n = _copy_from_user(to, from, n); - else - copy_from_user_overflow(); -diff --git a/arch/um/Makefile b/arch/um/Makefile -index 55c0661..86ad413 100644 ---- a/arch/um/Makefile -+++ b/arch/um/Makefile -@@ -62,6 +62,10 @@ USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -D__KERNEL__,,\ - $(patsubst -I%,,$(KBUILD_CFLAGS)))) $(ARCH_INCLUDE) $(MODE_INCLUDE) \ - $(filter -I%,$(CFLAGS)) -D_FILE_OFFSET_BITS=64 -idirafter include - -+ifdef CONSTIFY_PLUGIN -+USER_CFLAGS += $(CONSTIFY_PLUGIN) -fplugin-arg-constify_plugin-no-constify -+endif -+ - #This will adjust *FLAGS accordingly to the platform. - include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS) - -diff --git a/arch/um/include/asm/cache.h b/arch/um/include/asm/cache.h -index 19e1bdd..3665b77 100644 ---- a/arch/um/include/asm/cache.h -+++ b/arch/um/include/asm/cache.h -@@ -1,6 +1,7 @@ - #ifndef __UM_CACHE_H - #define __UM_CACHE_H - -+#include <linux/const.h> - - #if defined(CONFIG_UML_X86) && !defined(CONFIG_64BIT) - # define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT) -@@ -12,6 +13,6 @@ - # define L1_CACHE_SHIFT 5 - #endif - --#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - #endif -diff --git a/arch/um/include/asm/kmap_types.h b/arch/um/include/asm/kmap_types.h -index 6c03acd..a5e0215 100644 ---- a/arch/um/include/asm/kmap_types.h -+++ b/arch/um/include/asm/kmap_types.h -@@ -23,6 +23,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff --git a/arch/um/include/asm/page.h b/arch/um/include/asm/page.h -index 7cfc3ce..cbd1a58 100644 ---- a/arch/um/include/asm/page.h -+++ b/arch/um/include/asm/page.h -@@ -14,6 +14,9 @@ - #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) - #define PAGE_MASK (~(PAGE_SIZE-1)) - -+#define ktla_ktva(addr) (addr) -+#define ktva_ktla(addr) (addr) -+ - #ifndef __ASSEMBLY__ - - struct page; -diff --git a/arch/um/include/asm/pgtable-3level.h b/arch/um/include/asm/pgtable-3level.h -index 0032f92..cd151e0 100644 ---- a/arch/um/include/asm/pgtable-3level.h -+++ b/arch/um/include/asm/pgtable-3level.h -@@ -58,6 +58,7 @@ - #define pud_present(x) (pud_val(x) & _PAGE_PRESENT) - #define pud_populate(mm, pud, pmd) \ - set_pud(pud, __pud(_PAGE_TABLE + __pa(pmd))) -+#define pud_populate_kernel(mm, pud, pmd) pud_populate((mm), (pud), (pmd)) - - #ifdef CONFIG_64BIT - #define set_pud(pudptr, pudval) set_64bit((u64 *) (pudptr), pud_val(pudval)) -diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c -index 2b73ded..804f540 100644 ---- a/arch/um/kernel/process.c -+++ b/arch/um/kernel/process.c -@@ -404,22 +404,6 @@ int singlestepping(void * t) - return 2; - } - --/* -- * Only x86 and x86_64 have an arch_align_stack(). -- * All other arches have "#define arch_align_stack(x) (x)" -- * in their asm/system.h -- * As this is included in UML from asm-um/system-generic.h, -- * we can use it to behave as the subarch does. -- */ --#ifndef arch_align_stack --unsigned long arch_align_stack(unsigned long sp) --{ -- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) -- sp -= get_random_int() % 8192; -- return sp & ~0xf; --} --#endif -- - unsigned long get_wchan(struct task_struct *p) - { - unsigned long stack_page, sp, ip; -diff --git a/arch/unicore32/include/asm/cache.h b/arch/unicore32/include/asm/cache.h -index ad8f795..2c7eec6 100644 ---- a/arch/unicore32/include/asm/cache.h -+++ b/arch/unicore32/include/asm/cache.h -@@ -12,8 +12,10 @@ - #ifndef __UNICORE_CACHE_H__ - #define __UNICORE_CACHE_H__ - --#define L1_CACHE_SHIFT (5) --#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+#include <linux/const.h> -+ -+#define L1_CACHE_SHIFT 5 -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - /* - * Memory returned by kmalloc() may be used for DMA, so we must make -diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig -index c9866b0..fe53aef 100644 ---- a/arch/x86/Kconfig -+++ b/arch/x86/Kconfig -@@ -229,7 +229,7 @@ config X86_HT - - config X86_32_LAZY_GS - def_bool y -- depends on X86_32 && !CC_STACKPROTECTOR -+ depends on X86_32 && !CC_STACKPROTECTOR && !PAX_MEMORY_UDEREF - - config ARCH_HWEIGHT_CFLAGS - string -@@ -1042,7 +1042,7 @@ choice - - config NOHIGHMEM - bool "off" -- depends on !X86_NUMAQ -+ depends on !X86_NUMAQ && !(PAX_PAGEEXEC && PAX_ENABLE_PAE) - ---help--- - Linux can use up to 64 Gigabytes of physical memory on x86 systems. - However, the address space of 32-bit x86 processors is only 4 -@@ -1079,7 +1079,7 @@ config NOHIGHMEM - - config HIGHMEM4G - bool "4GB" -- depends on !X86_NUMAQ -+ depends on !X86_NUMAQ && !(PAX_PAGEEXEC && PAX_ENABLE_PAE) - ---help--- - Select this if you have a 32-bit processor and between 1 and 4 - gigabytes of physical RAM. -@@ -1133,7 +1133,7 @@ config PAGE_OFFSET - hex - default 0xB0000000 if VMSPLIT_3G_OPT - default 0x80000000 if VMSPLIT_2G -- default 0x78000000 if VMSPLIT_2G_OPT -+ default 0x70000000 if VMSPLIT_2G_OPT - default 0x40000000 if VMSPLIT_1G - default 0xC0000000 - depends on X86_32 -@@ -1523,6 +1523,7 @@ config SECCOMP - - config CC_STACKPROTECTOR - bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)" -+ depends on X86_64 || !PAX_MEMORY_UDEREF - ---help--- - This option turns on the -fstack-protector GCC feature. This - feature puts, at the beginning of functions, a canary value on -@@ -1580,6 +1581,7 @@ config KEXEC_JUMP - config PHYSICAL_START - hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP) - default "0x1000000" -+ range 0x400000 0x40000000 - ---help--- - This gives the physical address where the kernel is loaded. - -@@ -1643,6 +1645,7 @@ config X86_NEED_RELOCS - config PHYSICAL_ALIGN - hex "Alignment value to which kernel should be aligned" if X86_32 - default "0x1000000" -+ range 0x400000 0x1000000 if PAX_KERNEXEC - range 0x2000 0x1000000 - ---help--- - This value puts the alignment restrictions on physical address -@@ -1674,9 +1677,10 @@ config HOTPLUG_CPU - Say N if you want to disable CPU hotplug. - - config COMPAT_VDSO -- def_bool y -+ def_bool n - prompt "Compat VDSO support" - depends on X86_32 || IA32_EMULATION -+ depends on !PAX_NOEXEC && !PAX_MEMORY_UDEREF - ---help--- - Map the 32-bit VDSO to the predictable old-style address too. - -diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu -index 706e12e..62e4feb 100644 ---- a/arch/x86/Kconfig.cpu -+++ b/arch/x86/Kconfig.cpu -@@ -334,7 +334,7 @@ config X86_PPRO_FENCE - - config X86_F00F_BUG - def_bool y -- depends on M586MMX || M586TSC || M586 || M486 || M386 -+ depends on (M586MMX || M586TSC || M586 || M486 || M386) && !PAX_KERNEXEC - - config X86_INVD_BUG - def_bool y -@@ -358,7 +358,7 @@ config X86_POPAD_OK - - config X86_ALIGNMENT_16 - def_bool y -- depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1 -+ depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK8 || MK7 || MK6 || MCORE2 || MPENTIUM4 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1 - - config X86_INTEL_USERCOPY - def_bool y -@@ -404,7 +404,7 @@ config X86_CMPXCHG64 - # generates cmov. - config X86_CMOV - def_bool y -- depends on (MK8 || MK7 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX) -+ depends on (MK8 || MK7 || MCORE2 || MPSC || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX) - - config X86_MINIMUM_CPU_FAMILY - int -diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug -index e46c214..ab62fd1 100644 ---- a/arch/x86/Kconfig.debug -+++ b/arch/x86/Kconfig.debug -@@ -84,7 +84,7 @@ config X86_PTDUMP - config DEBUG_RODATA - bool "Write protect kernel read-only data structures" - default y -- depends on DEBUG_KERNEL -+ depends on DEBUG_KERNEL && BROKEN - ---help--- - Mark the kernel read-only data as write-protected in the pagetables, - in order to catch accidental (and incorrect) writes to such const -@@ -102,7 +102,7 @@ config DEBUG_RODATA_TEST - - config DEBUG_SET_MODULE_RONX - bool "Set loadable kernel module data as NX and text as RO" -- depends on MODULES -+ depends on MODULES && BROKEN - ---help--- - This option helps catch unintended modifications to loadable - kernel module's text and read-only data. It also prevents execution -@@ -275,7 +275,7 @@ config OPTIMIZE_INLINING - - config DEBUG_STRICT_USER_COPY_CHECKS - bool "Strict copy size checks" -- depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING -+ depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING && !PAX_SIZE_OVERFLOW - ---help--- - Enabling this option turns a certain set of sanity checks for user - copy operations into compile time failures. -diff --git a/arch/x86/Makefile b/arch/x86/Makefile -index b1c611e..2c1a823 100644 ---- a/arch/x86/Makefile -+++ b/arch/x86/Makefile -@@ -46,6 +46,7 @@ else - UTS_MACHINE := x86_64 - CHECKFLAGS += -D__x86_64__ -m64 - -+ biarch := $(call cc-option,-m64) - KBUILD_AFLAGS += -m64 - KBUILD_CFLAGS += -m64 - -@@ -222,3 +223,12 @@ define archhelp - echo ' FDARGS="..." arguments for the booted kernel' - echo ' FDINITRD=file initrd for the booted kernel' - endef -+ -+define OLD_LD -+ -+*** ${VERSION}.${PATCHLEVEL} PaX kernels no longer build correctly with old versions of binutils. -+*** Please upgrade your binutils to 2.18 or newer -+endef -+ -+archprepare: -+ $(if $(LDFLAGS_BUILD_ID),,$(error $(OLD_LD))) -diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile -index 5a747dd..ff7b12c 100644 ---- a/arch/x86/boot/Makefile -+++ b/arch/x86/boot/Makefile -@@ -64,6 +64,9 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \ - $(call cc-option, -fno-stack-protector) \ - $(call cc-option, -mpreferred-stack-boundary=2) - KBUILD_CFLAGS += $(call cc-option, -m32) -+ifdef CONSTIFY_PLUGIN -+KBUILD_CFLAGS += $(CONSTIFY_PLUGIN) -fplugin-arg-constify_plugin-no-constify -+endif - KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ - GCOV_PROFILE := n - -diff --git a/arch/x86/boot/bitops.h b/arch/x86/boot/bitops.h -index 878e4b9..20537ab 100644 ---- a/arch/x86/boot/bitops.h -+++ b/arch/x86/boot/bitops.h -@@ -26,7 +26,7 @@ static inline int variable_test_bit(int nr, const void *addr) - u8 v; - const u32 *p = (const u32 *)addr; - -- asm("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr)); -+ asm volatile("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr)); - return v; - } - -@@ -37,7 +37,7 @@ static inline int variable_test_bit(int nr, const void *addr) - - static inline void set_bit(int nr, void *addr) - { -- asm("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr)); -+ asm volatile("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr)); - } - - #endif /* BOOT_BITOPS_H */ -diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h -index 18997e5..83d9c67 100644 ---- a/arch/x86/boot/boot.h -+++ b/arch/x86/boot/boot.h -@@ -85,7 +85,7 @@ static inline void io_delay(void) - static inline u16 ds(void) - { - u16 seg; -- asm("movw %%ds,%0" : "=rm" (seg)); -+ asm volatile("movw %%ds,%0" : "=rm" (seg)); - return seg; - } - -@@ -181,7 +181,7 @@ static inline void wrgs32(u32 v, addr_t addr) - static inline int memcmp(const void *s1, const void *s2, size_t len) - { - u8 diff; -- asm("repe; cmpsb; setnz %0" -+ asm volatile("repe; cmpsb; setnz %0" - : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len)); - return diff; - } -diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile -index e398bb5..3a382ca 100644 ---- a/arch/x86/boot/compressed/Makefile -+++ b/arch/x86/boot/compressed/Makefile -@@ -14,6 +14,9 @@ cflags-$(CONFIG_X86_64) := -mcmodel=small - KBUILD_CFLAGS += $(cflags-y) - KBUILD_CFLAGS += $(call cc-option,-ffreestanding) - KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) -+ifdef CONSTIFY_PLUGIN -+KBUILD_CFLAGS += $(CONSTIFY_PLUGIN) -fplugin-arg-constify_plugin-no-constify -+endif - - KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ - GCOV_PROFILE := n -diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c -index 0cdfc0d..6e79437 100644 ---- a/arch/x86/boot/compressed/eboot.c -+++ b/arch/x86/boot/compressed/eboot.c -@@ -122,7 +122,6 @@ again: - *addr = max_addr; - } - --free_pool: - efi_call_phys1(sys_table->boottime->free_pool, map); - - fail: -@@ -186,7 +185,6 @@ static efi_status_t low_alloc(unsigned long size, unsigned long align, - if (i == map_size / desc_size) - status = EFI_NOT_FOUND; - --free_pool: - efi_call_phys1(sys_table->boottime->free_pool, map); - fail: - return status; -diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S -index c85e3ac..6f5aa80 100644 ---- a/arch/x86/boot/compressed/head_32.S -+++ b/arch/x86/boot/compressed/head_32.S -@@ -106,7 +106,7 @@ preferred_addr: - notl %eax - andl %eax, %ebx - #else -- movl $LOAD_PHYSICAL_ADDR, %ebx -+ movl $____LOAD_PHYSICAL_ADDR, %ebx - #endif - - /* Target address to relocate to for decompression */ -@@ -192,7 +192,7 @@ relocated: - * and where it was actually loaded. - */ - movl %ebp, %ebx -- subl $LOAD_PHYSICAL_ADDR, %ebx -+ subl $____LOAD_PHYSICAL_ADDR, %ebx - jz 2f /* Nothing to be done if loaded at compiled addr. */ - /* - * Process relocations. -@@ -200,8 +200,7 @@ relocated: - - 1: subl $4, %edi - movl (%edi), %ecx -- testl %ecx, %ecx -- jz 2f -+ jecxz 2f - addl %ebx, -__PAGE_OFFSET(%ebx, %ecx) - jmp 1b - 2: -diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S -index 87e03a1..0d94c76 100644 ---- a/arch/x86/boot/compressed/head_64.S -+++ b/arch/x86/boot/compressed/head_64.S -@@ -91,7 +91,7 @@ ENTRY(startup_32) - notl %eax - andl %eax, %ebx - #else -- movl $LOAD_PHYSICAL_ADDR, %ebx -+ movl $____LOAD_PHYSICAL_ADDR, %ebx - #endif - - /* Target address to relocate to for decompression */ -@@ -263,7 +263,7 @@ preferred_addr: - notq %rax - andq %rax, %rbp - #else -- movq $LOAD_PHYSICAL_ADDR, %rbp -+ movq $____LOAD_PHYSICAL_ADDR, %rbp - #endif - - /* Target address to relocate to for decompression */ -diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c -index 7116dcb..d9ae1d7 100644 ---- a/arch/x86/boot/compressed/misc.c -+++ b/arch/x86/boot/compressed/misc.c -@@ -310,7 +310,7 @@ static void parse_elf(void *output) - case PT_LOAD: - #ifdef CONFIG_RELOCATABLE - dest = output; -- dest += (phdr->p_paddr - LOAD_PHYSICAL_ADDR); -+ dest += (phdr->p_paddr - ____LOAD_PHYSICAL_ADDR); - #else - dest = (void *)(phdr->p_paddr); - #endif -@@ -365,7 +365,7 @@ asmlinkage void decompress_kernel(void *rmode, memptr heap, - error("Destination address too large"); - #endif - #ifndef CONFIG_RELOCATABLE -- if ((unsigned long)output != LOAD_PHYSICAL_ADDR) -+ if ((unsigned long)output != ____LOAD_PHYSICAL_ADDR) - error("Wrong destination address"); - #endif - -diff --git a/arch/x86/boot/cpucheck.c b/arch/x86/boot/cpucheck.c -index 4d3ff03..e4972ff 100644 ---- a/arch/x86/boot/cpucheck.c -+++ b/arch/x86/boot/cpucheck.c -@@ -74,7 +74,7 @@ static int has_fpu(void) - u16 fcw = -1, fsw = -1; - u32 cr0; - -- asm("movl %%cr0,%0" : "=r" (cr0)); -+ asm volatile("movl %%cr0,%0" : "=r" (cr0)); - if (cr0 & (X86_CR0_EM|X86_CR0_TS)) { - cr0 &= ~(X86_CR0_EM|X86_CR0_TS); - asm volatile("movl %0,%%cr0" : : "r" (cr0)); -@@ -90,7 +90,7 @@ static int has_eflag(u32 mask) - { - u32 f0, f1; - -- asm("pushfl ; " -+ asm volatile("pushfl ; " - "pushfl ; " - "popl %0 ; " - "movl %0,%1 ; " -@@ -115,7 +115,7 @@ static void get_flags(void) - set_bit(X86_FEATURE_FPU, cpu.flags); - - if (has_eflag(X86_EFLAGS_ID)) { -- asm("cpuid" -+ asm volatile("cpuid" - : "=a" (max_intel_level), - "=b" (cpu_vendor[0]), - "=d" (cpu_vendor[1]), -@@ -124,7 +124,7 @@ static void get_flags(void) - - if (max_intel_level >= 0x00000001 && - max_intel_level <= 0x0000ffff) { -- asm("cpuid" -+ asm volatile("cpuid" - : "=a" (tfms), - "=c" (cpu.flags[4]), - "=d" (cpu.flags[0]) -@@ -136,7 +136,7 @@ static void get_flags(void) - cpu.model += ((tfms >> 16) & 0xf) << 4; - } - -- asm("cpuid" -+ asm volatile("cpuid" - : "=a" (max_amd_level) - : "a" (0x80000000) - : "ebx", "ecx", "edx"); -@@ -144,7 +144,7 @@ static void get_flags(void) - if (max_amd_level >= 0x80000001 && - max_amd_level <= 0x8000ffff) { - u32 eax = 0x80000001; -- asm("cpuid" -+ asm volatile("cpuid" - : "+a" (eax), - "=c" (cpu.flags[6]), - "=d" (cpu.flags[1]) -@@ -203,9 +203,9 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr) - u32 ecx = MSR_K7_HWCR; - u32 eax, edx; - -- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); -+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); - eax &= ~(1 << 15); -- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); -+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); - - get_flags(); /* Make sure it really did something */ - err = check_flags(); -@@ -218,9 +218,9 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr) - u32 ecx = MSR_VIA_FCR; - u32 eax, edx; - -- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); -+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); - eax |= (1<<1)|(1<<7); -- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); -+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); - - set_bit(X86_FEATURE_CX8, cpu.flags); - err = check_flags(); -@@ -231,12 +231,12 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr) - u32 eax, edx; - u32 level = 1; - -- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); -- asm("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx)); -- asm("cpuid" -+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); -+ asm volatile("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx)); -+ asm volatile("cpuid" - : "+a" (level), "=d" (cpu.flags[0]) - : : "ecx", "ebx"); -- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); -+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); - - err = check_flags(); - } -diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S -index f1bbeeb..aff09cb 100644 ---- a/arch/x86/boot/header.S -+++ b/arch/x86/boot/header.S -@@ -372,7 +372,7 @@ setup_data: .quad 0 # 64-bit physical pointer to - # single linked list of - # struct setup_data - --pref_address: .quad LOAD_PHYSICAL_ADDR # preferred load addr -+pref_address: .quad ____LOAD_PHYSICAL_ADDR # preferred load addr - - #define ZO_INIT_SIZE (ZO__end - ZO_startup_32 + ZO_z_extract_offset) - #define VO_INIT_SIZE (VO__end - VO__text) -diff --git a/arch/x86/boot/memory.c b/arch/x86/boot/memory.c -index db75d07..8e6d0af 100644 ---- a/arch/x86/boot/memory.c -+++ b/arch/x86/boot/memory.c -@@ -19,7 +19,7 @@ - - static int detect_memory_e820(void) - { -- int count = 0; -+ unsigned int count = 0; - struct biosregs ireg, oreg; - struct e820entry *desc = boot_params.e820_map; - static struct e820entry buf; /* static so it is zeroed */ -diff --git a/arch/x86/boot/video-vesa.c b/arch/x86/boot/video-vesa.c -index 11e8c6e..fdbb1ed 100644 ---- a/arch/x86/boot/video-vesa.c -+++ b/arch/x86/boot/video-vesa.c -@@ -200,6 +200,7 @@ static void vesa_store_pm_info(void) - - boot_params.screen_info.vesapm_seg = oreg.es; - boot_params.screen_info.vesapm_off = oreg.di; -+ boot_params.screen_info.vesapm_size = oreg.cx; - } - - /* -diff --git a/arch/x86/boot/video.c b/arch/x86/boot/video.c -index 43eda28..5ab5fdb 100644 ---- a/arch/x86/boot/video.c -+++ b/arch/x86/boot/video.c -@@ -96,7 +96,7 @@ static void store_mode_params(void) - static unsigned int get_entry(void) - { - char entry_buf[4]; -- int i, len = 0; -+ unsigned int i, len = 0; - int key; - unsigned int v; - -diff --git a/arch/x86/crypto/aes-x86_64-asm_64.S b/arch/x86/crypto/aes-x86_64-asm_64.S -index 5b577d5..3c1fed4 100644 ---- a/arch/x86/crypto/aes-x86_64-asm_64.S -+++ b/arch/x86/crypto/aes-x86_64-asm_64.S -@@ -8,6 +8,8 @@ - * including this sentence is retained in full. - */ - -+#include <asm/alternative-asm.h> -+ - .extern crypto_ft_tab - .extern crypto_it_tab - .extern crypto_fl_tab -@@ -71,6 +73,8 @@ FUNC: movq r1,r2; \ - je B192; \ - leaq 32(r9),r9; - -+#define ret pax_force_retaddr 0, 1; ret -+ - #define epilogue(r1,r2,r3,r4,r5,r6,r7,r8,r9) \ - movq r1,r2; \ - movq r3,r4; \ -diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S -index 3470624..201259d 100644 ---- a/arch/x86/crypto/aesni-intel_asm.S -+++ b/arch/x86/crypto/aesni-intel_asm.S -@@ -31,6 +31,7 @@ - - #include <linux/linkage.h> - #include <asm/inst.h> -+#include <asm/alternative-asm.h> - - #ifdef __x86_64__ - .data -@@ -1436,7 +1437,9 @@ _return_T_done_decrypt: - pop %r14 - pop %r13 - pop %r12 -+ pax_force_retaddr 0, 1 - ret -+ENDPROC(aesni_gcm_dec) - - - /***************************************************************************** -@@ -1699,7 +1702,9 @@ _return_T_done_encrypt: - pop %r14 - pop %r13 - pop %r12 -+ pax_force_retaddr 0, 1 - ret -+ENDPROC(aesni_gcm_enc) - - #endif - -@@ -1714,6 +1719,7 @@ _key_expansion_256a: - pxor %xmm1, %xmm0 - movaps %xmm0, (TKEYP) - add $0x10, TKEYP -+ pax_force_retaddr_bts - ret - - .align 4 -@@ -1738,6 +1744,7 @@ _key_expansion_192a: - shufps $0b01001110, %xmm2, %xmm1 - movaps %xmm1, 0x10(TKEYP) - add $0x20, TKEYP -+ pax_force_retaddr_bts - ret - - .align 4 -@@ -1757,6 +1764,7 @@ _key_expansion_192b: - - movaps %xmm0, (TKEYP) - add $0x10, TKEYP -+ pax_force_retaddr_bts - ret - - .align 4 -@@ -1769,6 +1777,7 @@ _key_expansion_256b: - pxor %xmm1, %xmm2 - movaps %xmm2, (TKEYP) - add $0x10, TKEYP -+ pax_force_retaddr_bts - ret - - /* -@@ -1881,7 +1890,9 @@ ENTRY(aesni_set_key) - #ifndef __x86_64__ - popl KEYP - #endif -+ pax_force_retaddr 0, 1 - ret -+ENDPROC(aesni_set_key) - - /* - * void aesni_enc(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src) -@@ -1902,7 +1913,9 @@ ENTRY(aesni_enc) - popl KLEN - popl KEYP - #endif -+ pax_force_retaddr 0, 1 - ret -+ENDPROC(aesni_enc) - - /* - * _aesni_enc1: internal ABI -@@ -1959,6 +1972,7 @@ _aesni_enc1: - AESENC KEY STATE - movaps 0x70(TKEYP), KEY - AESENCLAST KEY STATE -+ pax_force_retaddr_bts - ret - - /* -@@ -2067,6 +2081,7 @@ _aesni_enc4: - AESENCLAST KEY STATE2 - AESENCLAST KEY STATE3 - AESENCLAST KEY STATE4 -+ pax_force_retaddr_bts - ret - - /* -@@ -2089,7 +2104,9 @@ ENTRY(aesni_dec) - popl KLEN - popl KEYP - #endif -+ pax_force_retaddr 0, 1 - ret -+ENDPROC(aesni_dec) - - /* - * _aesni_dec1: internal ABI -@@ -2146,6 +2163,7 @@ _aesni_dec1: - AESDEC KEY STATE - movaps 0x70(TKEYP), KEY - AESDECLAST KEY STATE -+ pax_force_retaddr_bts - ret - - /* -@@ -2254,6 +2272,7 @@ _aesni_dec4: - AESDECLAST KEY STATE2 - AESDECLAST KEY STATE3 - AESDECLAST KEY STATE4 -+ pax_force_retaddr_bts - ret - - /* -@@ -2311,7 +2330,9 @@ ENTRY(aesni_ecb_enc) - popl KEYP - popl LEN - #endif -+ pax_force_retaddr 0, 1 - ret -+ENDPROC(aesni_ecb_enc) - - /* - * void aesni_ecb_dec(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src, -@@ -2369,7 +2390,9 @@ ENTRY(aesni_ecb_dec) - popl KEYP - popl LEN - #endif -+ pax_force_retaddr 0, 1 - ret -+ENDPROC(aesni_ecb_dec) - - /* - * void aesni_cbc_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src, -@@ -2410,7 +2433,9 @@ ENTRY(aesni_cbc_enc) - popl LEN - popl IVP - #endif -+ pax_force_retaddr 0, 1 - ret -+ENDPROC(aesni_cbc_enc) - - /* - * void aesni_cbc_dec(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src, -@@ -2500,7 +2525,9 @@ ENTRY(aesni_cbc_dec) - popl LEN - popl IVP - #endif -+ pax_force_retaddr 0, 1 - ret -+ENDPROC(aesni_cbc_dec) - - #ifdef __x86_64__ - .align 16 -@@ -2526,6 +2553,7 @@ _aesni_inc_init: - mov $1, TCTR_LOW - MOVQ_R64_XMM TCTR_LOW INC - MOVQ_R64_XMM CTR TCTR_LOW -+ pax_force_retaddr_bts - ret - - /* -@@ -2554,6 +2582,7 @@ _aesni_inc: - .Linc_low: - movaps CTR, IV - PSHUFB_XMM BSWAP_MASK IV -+ pax_force_retaddr_bts - ret - - /* -@@ -2614,5 +2643,7 @@ ENTRY(aesni_ctr_enc) - .Lctr_enc_ret: - movups IV, (IVP) - .Lctr_enc_just_ret: -+ pax_force_retaddr 0, 1 - ret -+ENDPROC(aesni_ctr_enc) - #endif -diff --git a/arch/x86/crypto/blowfish-x86_64-asm_64.S b/arch/x86/crypto/blowfish-x86_64-asm_64.S -index 391d245..67f35c2 100644 ---- a/arch/x86/crypto/blowfish-x86_64-asm_64.S -+++ b/arch/x86/crypto/blowfish-x86_64-asm_64.S -@@ -20,6 +20,8 @@ - * - */ - -+#include <asm/alternative-asm.h> -+ - .file "blowfish-x86_64-asm.S" - .text - -@@ -151,9 +153,11 @@ __blowfish_enc_blk: - jnz __enc_xor; - - write_block(); -+ pax_force_retaddr 0, 1 - ret; - __enc_xor: - xor_block(); -+ pax_force_retaddr 0, 1 - ret; - - .align 8 -@@ -188,6 +192,7 @@ blowfish_dec_blk: - - movq %r11, %rbp; - -+ pax_force_retaddr 0, 1 - ret; - - /********************************************************************** -@@ -342,6 +347,7 @@ __blowfish_enc_blk_4way: - - popq %rbx; - popq %rbp; -+ pax_force_retaddr 0, 1 - ret; - - __enc_xor4: -@@ -349,6 +355,7 @@ __enc_xor4: - - popq %rbx; - popq %rbp; -+ pax_force_retaddr 0, 1 - ret; - - .align 8 -@@ -386,5 +393,6 @@ blowfish_dec_blk_4way: - popq %rbx; - popq %rbp; - -+ pax_force_retaddr 0, 1 - ret; - -diff --git a/arch/x86/crypto/camellia-x86_64-asm_64.S b/arch/x86/crypto/camellia-x86_64-asm_64.S -index 0b33743..7a56206 100644 ---- a/arch/x86/crypto/camellia-x86_64-asm_64.S -+++ b/arch/x86/crypto/camellia-x86_64-asm_64.S -@@ -20,6 +20,8 @@ - * - */ - -+#include <asm/alternative-asm.h> -+ - .file "camellia-x86_64-asm_64.S" - .text - -@@ -229,12 +231,14 @@ __enc_done: - enc_outunpack(mov, RT1); - - movq RRBP, %rbp; -+ pax_force_retaddr 0, 1 - ret; - - __enc_xor: - enc_outunpack(xor, RT1); - - movq RRBP, %rbp; -+ pax_force_retaddr 0, 1 - ret; - - .global camellia_dec_blk; -@@ -275,6 +279,7 @@ __dec_rounds16: - dec_outunpack(); - - movq RRBP, %rbp; -+ pax_force_retaddr 0, 1 - ret; - - /********************************************************************** -@@ -468,6 +473,7 @@ __enc2_done: - - movq RRBP, %rbp; - popq %rbx; -+ pax_force_retaddr 0, 1 - ret; - - __enc2_xor: -@@ -475,6 +481,7 @@ __enc2_xor: - - movq RRBP, %rbp; - popq %rbx; -+ pax_force_retaddr 0, 1 - ret; - - .global camellia_dec_blk_2way; -@@ -517,4 +524,5 @@ __dec2_rounds16: - - movq RRBP, %rbp; - movq RXOR, %rbx; -+ pax_force_retaddr 0, 1 - ret; -diff --git a/arch/x86/crypto/salsa20-x86_64-asm_64.S b/arch/x86/crypto/salsa20-x86_64-asm_64.S -index 6214a9b..1f4fc9a 100644 ---- a/arch/x86/crypto/salsa20-x86_64-asm_64.S -+++ b/arch/x86/crypto/salsa20-x86_64-asm_64.S -@@ -1,3 +1,5 @@ -+#include <asm/alternative-asm.h> -+ - # enter ECRYPT_encrypt_bytes - .text - .p2align 5 -@@ -790,6 +792,7 @@ ECRYPT_encrypt_bytes: - add %r11,%rsp - mov %rdi,%rax - mov %rsi,%rdx -+ pax_force_retaddr 0, 1 - ret - # bytesatleast65: - ._bytesatleast65: -@@ -891,6 +894,7 @@ ECRYPT_keysetup: - add %r11,%rsp - mov %rdi,%rax - mov %rsi,%rdx -+ pax_force_retaddr - ret - # enter ECRYPT_ivsetup - .text -@@ -917,4 +921,5 @@ ECRYPT_ivsetup: - add %r11,%rsp - mov %rdi,%rax - mov %rsi,%rdx -+ pax_force_retaddr - ret -diff --git a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S -index 3ee1ff0..cbc568b 100644 ---- a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S -+++ b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S -@@ -24,6 +24,8 @@ - * - */ - -+#include <asm/alternative-asm.h> -+ - .file "serpent-sse2-x86_64-asm_64.S" - .text - -@@ -692,12 +694,14 @@ __serpent_enc_blk_8way: - write_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2); - write_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2); - -+ pax_force_retaddr - ret; - - __enc_xor8: - xor_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2); - xor_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2); - -+ pax_force_retaddr - ret; - - .align 8 -@@ -755,4 +759,5 @@ serpent_dec_blk_8way: - write_blocks(%rsi, RC1, RD1, RB1, RE1, RK0, RK1, RK2); - write_blocks(%rax, RC2, RD2, RB2, RE2, RK0, RK1, RK2); - -+ pax_force_retaddr - ret; -diff --git a/arch/x86/crypto/sha1_ssse3_asm.S b/arch/x86/crypto/sha1_ssse3_asm.S -index b2c2f57..8470cab 100644 ---- a/arch/x86/crypto/sha1_ssse3_asm.S -+++ b/arch/x86/crypto/sha1_ssse3_asm.S -@@ -28,6 +28,8 @@ - * (at your option) any later version. - */ - -+#include <asm/alternative-asm.h> -+ - #define CTX %rdi // arg1 - #define BUF %rsi // arg2 - #define CNT %rdx // arg3 -@@ -104,6 +106,7 @@ - pop %r12 - pop %rbp - pop %rbx -+ pax_force_retaddr 0, 1 - ret - - .size \name, .-\name -diff --git a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S -index 5b012a2..36d5364 100644 ---- a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S -+++ b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S -@@ -20,6 +20,8 @@ - * - */ - -+#include <asm/alternative-asm.h> -+ - .file "twofish-x86_64-asm-3way.S" - .text - -@@ -260,6 +262,7 @@ __twofish_enc_blk_3way: - popq %r13; - popq %r14; - popq %r15; -+ pax_force_retaddr 0, 1 - ret; - - __enc_xor3: -@@ -271,6 +274,7 @@ __enc_xor3: - popq %r13; - popq %r14; - popq %r15; -+ pax_force_retaddr 0, 1 - ret; - - .global twofish_dec_blk_3way -@@ -312,5 +316,6 @@ twofish_dec_blk_3way: - popq %r13; - popq %r14; - popq %r15; -+ pax_force_retaddr 0, 1 - ret; - -diff --git a/arch/x86/crypto/twofish-x86_64-asm_64.S b/arch/x86/crypto/twofish-x86_64-asm_64.S -index 7bcf3fc..f53832f 100644 ---- a/arch/x86/crypto/twofish-x86_64-asm_64.S -+++ b/arch/x86/crypto/twofish-x86_64-asm_64.S -@@ -21,6 +21,7 @@ - .text - - #include <asm/asm-offsets.h> -+#include <asm/alternative-asm.h> - - #define a_offset 0 - #define b_offset 4 -@@ -268,6 +269,7 @@ twofish_enc_blk: - - popq R1 - movq $1,%rax -+ pax_force_retaddr 0, 1 - ret - - twofish_dec_blk: -@@ -319,4 +321,5 @@ twofish_dec_blk: - - popq R1 - movq $1,%rax -+ pax_force_retaddr 0, 1 - ret -diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c -index 07b3a68..bd2a388 100644 ---- a/arch/x86/ia32/ia32_aout.c -+++ b/arch/x86/ia32/ia32_aout.c -@@ -159,6 +159,8 @@ static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file, - unsigned long dump_start, dump_size; - struct user32 dump; - -+ memset(&dump, 0, sizeof(dump)); -+ - fs = get_fs(); - set_fs(KERNEL_DS); - has_dumped = 1; -diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c -index a69245b..6d145f4 100644 ---- a/arch/x86/ia32/ia32_signal.c -+++ b/arch/x86/ia32/ia32_signal.c -@@ -168,7 +168,7 @@ asmlinkage long sys32_sigaltstack(const stack_ia32_t __user *uss_ptr, - } - seg = get_fs(); - set_fs(KERNEL_DS); -- ret = do_sigaltstack(uss_ptr ? &uss : NULL, &uoss, regs->sp); -+ ret = do_sigaltstack(uss_ptr ? (const stack_t __force_user *)&uss : NULL, (stack_t __force_user *)&uoss, regs->sp); - set_fs(seg); - if (ret >= 0 && uoss_ptr) { - if (!access_ok(VERIFY_WRITE, uoss_ptr, sizeof(stack_ia32_t))) -@@ -369,7 +369,7 @@ static int ia32_setup_sigcontext(struct sigcontext_ia32 __user *sc, - */ - static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, - size_t frame_size, -- void **fpstate) -+ void __user **fpstate) - { - unsigned long sp; - -@@ -390,7 +390,7 @@ static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, - - if (used_math()) { - sp = sp - sig_xstate_ia32_size; -- *fpstate = (struct _fpstate_ia32 *) sp; -+ *fpstate = (struct _fpstate_ia32 __user *) sp; - if (save_i387_xstate_ia32(*fpstate) < 0) - return (void __user *) -1L; - } -@@ -398,7 +398,7 @@ static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, - sp -= frame_size; - /* Align the stack pointer according to the i386 ABI, - * i.e. so that on function entry ((sp + 4) & 15) == 0. */ -- sp = ((sp + 4) & -16ul) - 4; -+ sp = ((sp - 12) & -16ul) - 4; - return (void __user *) sp; - } - -@@ -456,7 +456,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka, - * These are actually not used anymore, but left because some - * gdb versions depend on them as a marker. - */ -- put_user_ex(*((u64 *)&code), (u64 *)frame->retcode); -+ put_user_ex(*((const u64 *)&code), (u64 __user *)frame->retcode); - } put_user_catch(err); - - if (err) -@@ -498,7 +498,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, - 0xb8, - __NR_ia32_rt_sigreturn, - 0x80cd, -- 0, -+ 0 - }; - - frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate); -@@ -528,16 +528,18 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, - - if (ka->sa.sa_flags & SA_RESTORER) - restorer = ka->sa.sa_restorer; -+ else if (current->mm->context.vdso) -+ /* Return stub is in 32bit vsyscall page */ -+ restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn); - else -- restorer = VDSO32_SYMBOL(current->mm->context.vdso, -- rt_sigreturn); -+ restorer = &frame->retcode; - put_user_ex(ptr_to_compat(restorer), &frame->pretcode); - - /* - * Not actually used anymore, but left because some gdb - * versions need it. - */ -- put_user_ex(*((u64 *)&code), (u64 *)frame->retcode); -+ put_user_ex(*((const u64 *)&code), (u64 __user *)frame->retcode); - } put_user_catch(err); - - if (err) -diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S -index e3e7340..05ed805 100644 ---- a/arch/x86/ia32/ia32entry.S -+++ b/arch/x86/ia32/ia32entry.S -@@ -13,8 +13,10 @@ - #include <asm/thread_info.h> - #include <asm/segment.h> - #include <asm/irqflags.h> -+#include <asm/pgtable.h> - #include <linux/linkage.h> - #include <linux/err.h> -+#include <asm/alternative-asm.h> - - /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */ - #include <linux/elf-em.h> -@@ -94,6 +96,32 @@ ENTRY(native_irq_enable_sysexit) - ENDPROC(native_irq_enable_sysexit) - #endif - -+ .macro pax_enter_kernel_user -+ pax_set_fptr_mask -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ call pax_enter_kernel_user -+#endif -+ .endm -+ -+ .macro pax_exit_kernel_user -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ call pax_exit_kernel_user -+#endif -+#ifdef CONFIG_PAX_RANDKSTACK -+ pushq %rax -+ pushq %r11 -+ call pax_randomize_kstack -+ popq %r11 -+ popq %rax -+#endif -+ .endm -+ -+.macro pax_erase_kstack -+#ifdef CONFIG_PAX_MEMORY_STACKLEAK -+ call pax_erase_kstack -+#endif -+.endm -+ - /* - * 32bit SYSENTER instruction entry. - * -@@ -120,12 +148,6 @@ ENTRY(ia32_sysenter_target) - CFI_REGISTER rsp,rbp - SWAPGS_UNSAFE_STACK - movq PER_CPU_VAR(kernel_stack), %rsp -- addq $(KERNEL_STACK_OFFSET),%rsp -- /* -- * No need to follow this irqs on/off section: the syscall -- * disabled irqs, here we enable it straight after entry: -- */ -- ENABLE_INTERRUPTS(CLBR_NONE) - movl %ebp,%ebp /* zero extension */ - pushq_cfi $__USER32_DS - /*CFI_REL_OFFSET ss,0*/ -@@ -133,24 +155,39 @@ ENTRY(ia32_sysenter_target) - CFI_REL_OFFSET rsp,0 - pushfq_cfi - /*CFI_REL_OFFSET rflags,0*/ -- movl TI_sysenter_return+THREAD_INFO(%rsp,3*8-KERNEL_STACK_OFFSET),%r10d -- CFI_REGISTER rip,r10 -+ orl $X86_EFLAGS_IF,(%rsp) -+ GET_THREAD_INFO(%r11) -+ movl TI_sysenter_return(%r11), %r11d -+ CFI_REGISTER rip,r11 - pushq_cfi $__USER32_CS - /*CFI_REL_OFFSET cs,0*/ - movl %eax, %eax -- pushq_cfi %r10 -+ pushq_cfi %r11 - CFI_REL_OFFSET rip,0 - pushq_cfi %rax - cld - SAVE_ARGS 0,1,0 -+ pax_enter_kernel_user -+ /* -+ * No need to follow this irqs on/off section: the syscall -+ * disabled irqs, here we enable it straight after entry: -+ */ -+ ENABLE_INTERRUPTS(CLBR_NONE) - /* no need to do an access_ok check here because rbp has been - 32bit zero extended */ -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ mov $PAX_USER_SHADOW_BASE,%r11 -+ add %r11,%rbp -+#endif -+ - 1: movl (%rbp),%ebp - .section __ex_table,"a" - .quad 1b,ia32_badarg - .previous -- orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET) -- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) -+ GET_THREAD_INFO(%r11) -+ orl $TS_COMPAT,TI_status(%r11) -+ testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11) - CFI_REMEMBER_STATE - jnz sysenter_tracesys - cmpq $(IA32_NR_syscalls-1),%rax -@@ -160,12 +197,15 @@ sysenter_do_call: - sysenter_dispatch: - call *ia32_sys_call_table(,%rax,8) - movq %rax,RAX-ARGOFFSET(%rsp) -+ GET_THREAD_INFO(%r11) - DISABLE_INTERRUPTS(CLBR_NONE) - TRACE_IRQS_OFF -- testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) -+ testl $_TIF_ALLWORK_MASK,TI_flags(%r11) - jnz sysexit_audit - sysexit_from_sys_call: -- andl $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET) -+ pax_exit_kernel_user -+ pax_erase_kstack -+ andl $~TS_COMPAT,TI_status(%r11) - /* clear IF, that popfq doesn't enable interrupts early */ - andl $~0x200,EFLAGS-R11(%rsp) - movl RIP-R11(%rsp),%edx /* User %eip */ -@@ -191,6 +231,9 @@ sysexit_from_sys_call: - movl %eax,%esi /* 2nd arg: syscall number */ - movl $AUDIT_ARCH_I386,%edi /* 1st arg: audit arch */ - call __audit_syscall_entry -+ -+ pax_erase_kstack -+ - movl RAX-ARGOFFSET(%rsp),%eax /* reload syscall number */ - cmpq $(IA32_NR_syscalls-1),%rax - ja ia32_badsys -@@ -202,7 +245,7 @@ sysexit_from_sys_call: - .endm - - .macro auditsys_exit exit -- testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) -+ testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11) - jnz ia32_ret_from_sys_call - TRACE_IRQS_ON - sti -@@ -213,11 +256,12 @@ sysexit_from_sys_call: - 1: setbe %al /* 1 if error, 0 if not */ - movzbl %al,%edi /* zero-extend that into %edi */ - call __audit_syscall_exit -+ GET_THREAD_INFO(%r11) - movq RAX-ARGOFFSET(%rsp),%rax /* reload syscall return value */ - movl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),%edi - cli - TRACE_IRQS_OFF -- testl %edi,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) -+ testl %edi,TI_flags(%r11) - jz \exit - CLEAR_RREGS -ARGOFFSET - jmp int_with_check -@@ -235,7 +279,7 @@ sysexit_audit: - - sysenter_tracesys: - #ifdef CONFIG_AUDITSYSCALL -- testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) -+ testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11) - jz sysenter_auditsys - #endif - SAVE_REST -@@ -243,6 +287,9 @@ sysenter_tracesys: - movq $-ENOSYS,RAX(%rsp)/* ptrace can change this for a bad syscall */ - movq %rsp,%rdi /* &pt_regs -> arg1 */ - call syscall_trace_enter -+ -+ pax_erase_kstack -+ - LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */ - RESTORE_REST - cmpq $(IA32_NR_syscalls-1),%rax -@@ -274,19 +321,20 @@ ENDPROC(ia32_sysenter_target) - ENTRY(ia32_cstar_target) - CFI_STARTPROC32 simple - CFI_SIGNAL_FRAME -- CFI_DEF_CFA rsp,KERNEL_STACK_OFFSET -+ CFI_DEF_CFA rsp,0 - CFI_REGISTER rip,rcx - /*CFI_REGISTER rflags,r11*/ - SWAPGS_UNSAFE_STACK - movl %esp,%r8d - CFI_REGISTER rsp,r8 - movq PER_CPU_VAR(kernel_stack),%rsp -+ SAVE_ARGS 8*6,0,0 -+ pax_enter_kernel_user - /* - * No need to follow this irqs on/off section: the syscall - * disabled irqs and here we enable it straight after entry: - */ - ENABLE_INTERRUPTS(CLBR_NONE) -- SAVE_ARGS 8,0,0 - movl %eax,%eax /* zero extension */ - movq %rax,ORIG_RAX-ARGOFFSET(%rsp) - movq %rcx,RIP-ARGOFFSET(%rsp) -@@ -302,12 +350,19 @@ ENTRY(ia32_cstar_target) - /* no need to do an access_ok check here because r8 has been - 32bit zero extended */ - /* hardware stack frame is complete now */ -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ mov $PAX_USER_SHADOW_BASE,%r11 -+ add %r11,%r8 -+#endif -+ - 1: movl (%r8),%r9d - .section __ex_table,"a" - .quad 1b,ia32_badarg - .previous -- orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET) -- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) -+ GET_THREAD_INFO(%r11) -+ orl $TS_COMPAT,TI_status(%r11) -+ testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11) - CFI_REMEMBER_STATE - jnz cstar_tracesys - cmpq $IA32_NR_syscalls-1,%rax -@@ -317,12 +372,15 @@ cstar_do_call: - cstar_dispatch: - call *ia32_sys_call_table(,%rax,8) - movq %rax,RAX-ARGOFFSET(%rsp) -+ GET_THREAD_INFO(%r11) - DISABLE_INTERRUPTS(CLBR_NONE) - TRACE_IRQS_OFF -- testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) -+ testl $_TIF_ALLWORK_MASK,TI_flags(%r11) - jnz sysretl_audit - sysretl_from_sys_call: -- andl $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET) -+ pax_exit_kernel_user -+ pax_erase_kstack -+ andl $~TS_COMPAT,TI_status(%r11) - RESTORE_ARGS 0,-ARG_SKIP,0,0,0 - movl RIP-ARGOFFSET(%rsp),%ecx - CFI_REGISTER rip,rcx -@@ -350,7 +408,7 @@ sysretl_audit: - - cstar_tracesys: - #ifdef CONFIG_AUDITSYSCALL -- testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) -+ testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11) - jz cstar_auditsys - #endif - xchgl %r9d,%ebp -@@ -359,6 +417,9 @@ cstar_tracesys: - movq $-ENOSYS,RAX(%rsp) /* ptrace can change this for a bad syscall */ - movq %rsp,%rdi /* &pt_regs -> arg1 */ - call syscall_trace_enter -+ -+ pax_erase_kstack -+ - LOAD_ARGS32 ARGOFFSET, 1 /* reload args from stack in case ptrace changed it */ - RESTORE_REST - xchgl %ebp,%r9d -@@ -404,19 +465,21 @@ ENTRY(ia32_syscall) - CFI_REL_OFFSET rip,RIP-RIP - PARAVIRT_ADJUST_EXCEPTION_FRAME - SWAPGS -- /* -- * No need to follow this irqs on/off section: the syscall -- * disabled irqs and here we enable it straight after entry: -- */ -- ENABLE_INTERRUPTS(CLBR_NONE) - movl %eax,%eax - pushq_cfi %rax - cld - /* note the registers are not zero extended to the sf. - this could be a problem. */ - SAVE_ARGS 0,1,0 -- orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET) -- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) -+ pax_enter_kernel_user -+ /* -+ * No need to follow this irqs on/off section: the syscall -+ * disabled irqs and here we enable it straight after entry: -+ */ -+ ENABLE_INTERRUPTS(CLBR_NONE) -+ GET_THREAD_INFO(%r11) -+ orl $TS_COMPAT,TI_status(%r11) -+ testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11) - jnz ia32_tracesys - cmpq $(IA32_NR_syscalls-1),%rax - ja ia32_badsys -@@ -435,6 +498,9 @@ ia32_tracesys: - movq $-ENOSYS,RAX(%rsp) /* ptrace can change this for a bad syscall */ - movq %rsp,%rdi /* &pt_regs -> arg1 */ - call syscall_trace_enter -+ -+ pax_erase_kstack -+ - LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */ - RESTORE_REST - cmpq $(IA32_NR_syscalls-1),%rax -diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c -index aec2202..f76174e 100644 ---- a/arch/x86/ia32/sys_ia32.c -+++ b/arch/x86/ia32/sys_ia32.c -@@ -69,8 +69,8 @@ asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long offset_low, - */ - static int cp_stat64(struct stat64 __user *ubuf, struct kstat *stat) - { -- typeof(ubuf->st_uid) uid = 0; -- typeof(ubuf->st_gid) gid = 0; -+ typeof(((struct stat64 *)0)->st_uid) uid = 0; -+ typeof(((struct stat64 *)0)->st_gid) gid = 0; - SET_UID(uid, stat->uid); - SET_GID(gid, stat->gid); - if (!access_ok(VERIFY_WRITE, ubuf, sizeof(struct stat64)) || -@@ -292,7 +292,7 @@ asmlinkage long sys32_alarm(unsigned int seconds) - return alarm_setitimer(seconds); - } - --asmlinkage long sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr, -+asmlinkage long sys32_waitpid(compat_pid_t pid, unsigned int __user *stat_addr, - int options) - { - return compat_sys_wait4(pid, stat_addr, options, NULL); -@@ -313,7 +313,7 @@ asmlinkage long sys32_sched_rr_get_interval(compat_pid_t pid, - mm_segment_t old_fs = get_fs(); - - set_fs(KERNEL_DS); -- ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t); -+ ret = sys_sched_rr_get_interval(pid, (struct timespec __force_user *)&t); - set_fs(old_fs); - if (put_compat_timespec(&t, interval)) - return -EFAULT; -@@ -329,7 +329,7 @@ asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set, - mm_segment_t old_fs = get_fs(); - - set_fs(KERNEL_DS); -- ret = sys_rt_sigpending((sigset_t __user *)&s, sigsetsize); -+ ret = sys_rt_sigpending((sigset_t __force_user *)&s, sigsetsize); - set_fs(old_fs); - if (!ret) { - switch (_NSIG_WORDS) { -@@ -354,7 +354,7 @@ asmlinkage long sys32_rt_sigqueueinfo(int pid, int sig, - if (copy_siginfo_from_user32(&info, uinfo)) - return -EFAULT; - set_fs(KERNEL_DS); -- ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *)&info); -+ ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __force_user *)&info); - set_fs(old_fs); - return ret; - } -@@ -399,7 +399,7 @@ asmlinkage long sys32_sendfile(int out_fd, int in_fd, - return -EFAULT; - - set_fs(KERNEL_DS); -- ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL, -+ ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __force_user *)&of : NULL, - count); - set_fs(old_fs); - -diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h -index 952bd01..7692c6f 100644 ---- a/arch/x86/include/asm/alternative-asm.h -+++ b/arch/x86/include/asm/alternative-asm.h -@@ -15,6 +15,45 @@ - .endm - #endif - -+#ifdef KERNEXEC_PLUGIN -+ .macro pax_force_retaddr_bts rip=0 -+ btsq $63,\rip(%rsp) -+ .endm -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS -+ .macro pax_force_retaddr rip=0, reload=0 -+ btsq $63,\rip(%rsp) -+ .endm -+ .macro pax_force_fptr ptr -+ btsq $63,\ptr -+ .endm -+ .macro pax_set_fptr_mask -+ .endm -+#endif -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR -+ .macro pax_force_retaddr rip=0, reload=0 -+ .if \reload -+ pax_set_fptr_mask -+ .endif -+ orq %r10,\rip(%rsp) -+ .endm -+ .macro pax_force_fptr ptr -+ orq %r10,\ptr -+ .endm -+ .macro pax_set_fptr_mask -+ movabs $0x8000000000000000,%r10 -+ .endm -+#endif -+#else -+ .macro pax_force_retaddr rip=0, reload=0 -+ .endm -+ .macro pax_force_fptr ptr -+ .endm -+ .macro pax_force_retaddr_bts rip=0 -+ .endm -+ .macro pax_set_fptr_mask -+ .endm -+#endif -+ - .macro altinstruction_entry orig alt feature orig_len alt_len - .long \orig - . - .long \alt - . -diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h -index 49331be..9706065 100644 ---- a/arch/x86/include/asm/alternative.h -+++ b/arch/x86/include/asm/alternative.h -@@ -89,7 +89,7 @@ static inline int alternatives_text_reserved(void *start, void *end) - ".section .discard,\"aw\",@progbits\n" \ - " .byte 0xff + (664f-663f) - (662b-661b)\n" /* rlen <= slen */ \ - ".previous\n" \ -- ".section .altinstr_replacement, \"ax\"\n" \ -+ ".section .altinstr_replacement, \"a\"\n" \ - "663:\n\t" newinstr "\n664:\n" /* replacement */ \ - ".previous" - -diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h -index d854101..f6ea947 100644 ---- a/arch/x86/include/asm/apic.h -+++ b/arch/x86/include/asm/apic.h -@@ -44,7 +44,7 @@ static inline void generic_apic_probe(void) - - #ifdef CONFIG_X86_LOCAL_APIC - --extern unsigned int apic_verbosity; -+extern int apic_verbosity; - extern int local_apic_timer_c2_ok; - - extern int disable_apic; -diff --git a/arch/x86/include/asm/apm.h b/arch/x86/include/asm/apm.h -index 20370c6..a2eb9b0 100644 ---- a/arch/x86/include/asm/apm.h -+++ b/arch/x86/include/asm/apm.h -@@ -34,7 +34,7 @@ static inline void apm_bios_call_asm(u32 func, u32 ebx_in, u32 ecx_in, - __asm__ __volatile__(APM_DO_ZERO_SEGS - "pushl %%edi\n\t" - "pushl %%ebp\n\t" -- "lcall *%%cs:apm_bios_entry\n\t" -+ "lcall *%%ss:apm_bios_entry\n\t" - "setc %%al\n\t" - "popl %%ebp\n\t" - "popl %%edi\n\t" -@@ -58,7 +58,7 @@ static inline u8 apm_bios_call_simple_asm(u32 func, u32 ebx_in, - __asm__ __volatile__(APM_DO_ZERO_SEGS - "pushl %%edi\n\t" - "pushl %%ebp\n\t" -- "lcall *%%cs:apm_bios_entry\n\t" -+ "lcall *%%ss:apm_bios_entry\n\t" - "setc %%bl\n\t" - "popl %%ebp\n\t" - "popl %%edi\n\t" -diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h -index 58cb6d4..ca9010d 100644 ---- a/arch/x86/include/asm/atomic.h -+++ b/arch/x86/include/asm/atomic.h -@@ -22,7 +22,18 @@ - */ - static inline int atomic_read(const atomic_t *v) - { -- return (*(volatile int *)&(v)->counter); -+ return (*(volatile const int *)&(v)->counter); -+} -+ -+/** -+ * atomic_read_unchecked - read atomic variable -+ * @v: pointer of type atomic_unchecked_t -+ * -+ * Atomically reads the value of @v. -+ */ -+static inline int atomic_read_unchecked(const atomic_unchecked_t *v) -+{ -+ return (*(volatile const int *)&(v)->counter); - } - - /** -@@ -38,6 +49,18 @@ static inline void atomic_set(atomic_t *v, int i) - } - - /** -+ * atomic_set_unchecked - set atomic variable -+ * @v: pointer of type atomic_unchecked_t -+ * @i: required value -+ * -+ * Atomically sets the value of @v to @i. -+ */ -+static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i) -+{ -+ v->counter = i; -+} -+ -+/** - * atomic_add - add integer to atomic variable - * @i: integer value to add - * @v: pointer of type atomic_t -@@ -46,7 +69,29 @@ static inline void atomic_set(atomic_t *v, int i) - */ - static inline void atomic_add(int i, atomic_t *v) - { -- asm volatile(LOCK_PREFIX "addl %1,%0" -+ asm volatile(LOCK_PREFIX "addl %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subl %1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "+m" (v->counter) -+ : "ir" (i)); -+} -+ -+/** -+ * atomic_add_unchecked - add integer to atomic variable -+ * @i: integer value to add -+ * @v: pointer of type atomic_unchecked_t -+ * -+ * Atomically adds @i to @v. -+ */ -+static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v) -+{ -+ asm volatile(LOCK_PREFIX "addl %1,%0\n" - : "+m" (v->counter) - : "ir" (i)); - } -@@ -60,7 +105,29 @@ static inline void atomic_add(int i, atomic_t *v) - */ - static inline void atomic_sub(int i, atomic_t *v) - { -- asm volatile(LOCK_PREFIX "subl %1,%0" -+ asm volatile(LOCK_PREFIX "subl %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addl %1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "+m" (v->counter) -+ : "ir" (i)); -+} -+ -+/** -+ * atomic_sub_unchecked - subtract integer from atomic variable -+ * @i: integer value to subtract -+ * @v: pointer of type atomic_unchecked_t -+ * -+ * Atomically subtracts @i from @v. -+ */ -+static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v) -+{ -+ asm volatile(LOCK_PREFIX "subl %1,%0\n" - : "+m" (v->counter) - : "ir" (i)); - } -@@ -78,7 +145,16 @@ static inline int atomic_sub_and_test(int i, atomic_t *v) - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "subl %2,%0; sete %1" -+ asm volatile(LOCK_PREFIX "subl %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addl %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "+m" (v->counter), "=qm" (c) - : "ir" (i) : "memory"); - return c; -@@ -92,7 +168,27 @@ static inline int atomic_sub_and_test(int i, atomic_t *v) - */ - static inline void atomic_inc(atomic_t *v) - { -- asm volatile(LOCK_PREFIX "incl %0" -+ asm volatile(LOCK_PREFIX "incl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "decl %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "+m" (v->counter)); -+} -+ -+/** -+ * atomic_inc_unchecked - increment atomic variable -+ * @v: pointer of type atomic_unchecked_t -+ * -+ * Atomically increments @v by 1. -+ */ -+static inline void atomic_inc_unchecked(atomic_unchecked_t *v) -+{ -+ asm volatile(LOCK_PREFIX "incl %0\n" - : "+m" (v->counter)); - } - -@@ -104,7 +200,27 @@ static inline void atomic_inc(atomic_t *v) - */ - static inline void atomic_dec(atomic_t *v) - { -- asm volatile(LOCK_PREFIX "decl %0" -+ asm volatile(LOCK_PREFIX "decl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "incl %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "+m" (v->counter)); -+} -+ -+/** -+ * atomic_dec_unchecked - decrement atomic variable -+ * @v: pointer of type atomic_unchecked_t -+ * -+ * Atomically decrements @v by 1. -+ */ -+static inline void atomic_dec_unchecked(atomic_unchecked_t *v) -+{ -+ asm volatile(LOCK_PREFIX "decl %0\n" - : "+m" (v->counter)); - } - -@@ -120,7 +236,16 @@ static inline int atomic_dec_and_test(atomic_t *v) - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "decl %0; sete %1" -+ asm volatile(LOCK_PREFIX "decl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "incl %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "+m" (v->counter), "=qm" (c) - : : "memory"); - return c != 0; -@@ -138,7 +263,35 @@ static inline int atomic_inc_and_test(atomic_t *v) - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "incl %0; sete %1" -+ asm volatile(LOCK_PREFIX "incl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "decl %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" -+ : "+m" (v->counter), "=qm" (c) -+ : : "memory"); -+ return c != 0; -+} -+ -+/** -+ * atomic_inc_and_test_unchecked - increment and test -+ * @v: pointer of type atomic_unchecked_t -+ * -+ * Atomically increments @v by 1 -+ * and returns true if the result is zero, or false for all -+ * other cases. -+ */ -+static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v) -+{ -+ unsigned char c; -+ -+ asm volatile(LOCK_PREFIX "incl %0\n" -+ "sete %1\n" - : "+m" (v->counter), "=qm" (c) - : : "memory"); - return c != 0; -@@ -157,7 +310,16 @@ static inline int atomic_add_negative(int i, atomic_t *v) - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "addl %2,%0; sets %1" -+ asm volatile(LOCK_PREFIX "addl %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subl %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sets %1\n" - : "+m" (v->counter), "=qm" (c) - : "ir" (i) : "memory"); - return c; -@@ -179,7 +341,7 @@ static inline int atomic_add_return(int i, atomic_t *v) - goto no_xadd; - #endif - /* Modern 486+ processor */ -- return i + xadd(&v->counter, i); -+ return i + xadd_check_overflow(&v->counter, i); - - #ifdef CONFIG_M386 - no_xadd: /* Legacy 386 processor */ -@@ -192,6 +354,34 @@ no_xadd: /* Legacy 386 processor */ - } - - /** -+ * atomic_add_return_unchecked - add integer and return -+ * @i: integer value to add -+ * @v: pointer of type atomic_unchecked_t -+ * -+ * Atomically adds @i to @v and returns @i + @v -+ */ -+static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v) -+{ -+#ifdef CONFIG_M386 -+ int __i; -+ unsigned long flags; -+ if (unlikely(boot_cpu_data.x86 <= 3)) -+ goto no_xadd; -+#endif -+ /* Modern 486+ processor */ -+ return i + xadd(&v->counter, i); -+ -+#ifdef CONFIG_M386 -+no_xadd: /* Legacy 386 processor */ -+ raw_local_irq_save(flags); -+ __i = atomic_read_unchecked(v); -+ atomic_set_unchecked(v, i + __i); -+ raw_local_irq_restore(flags); -+ return i + __i; -+#endif -+} -+ -+/** - * atomic_sub_return - subtract integer and return - * @v: pointer of type atomic_t - * @i: integer value to subtract -@@ -204,6 +394,10 @@ static inline int atomic_sub_return(int i, atomic_t *v) - } - - #define atomic_inc_return(v) (atomic_add_return(1, v)) -+static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v) -+{ -+ return atomic_add_return_unchecked(1, v); -+} - #define atomic_dec_return(v) (atomic_sub_return(1, v)) - - static inline int atomic_cmpxchg(atomic_t *v, int old, int new) -@@ -211,11 +405,21 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new) - return cmpxchg(&v->counter, old, new); - } - -+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new) -+{ -+ return cmpxchg(&v->counter, old, new); -+} -+ - static inline int atomic_xchg(atomic_t *v, int new) - { - return xchg(&v->counter, new); - } - -+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new) -+{ -+ return xchg(&v->counter, new); -+} -+ - /** - * __atomic_add_unless - add unless the number is already a given value - * @v: pointer of type atomic_t -@@ -227,12 +431,25 @@ static inline int atomic_xchg(atomic_t *v, int new) - */ - static inline int __atomic_add_unless(atomic_t *v, int a, int u) - { -- int c, old; -+ int c, old, new; - c = atomic_read(v); - for (;;) { -- if (unlikely(c == (u))) -+ if (unlikely(c == u)) - break; -- old = atomic_cmpxchg((v), c, c + (a)); -+ -+ asm volatile("addl %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "subl %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=r" (new) -+ : "0" (c), "ir" (a)); -+ -+ old = atomic_cmpxchg(v, c, new); - if (likely(old == c)) - break; - c = old; -@@ -240,6 +457,48 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u) - return c; - } - -+/** -+ * atomic_inc_not_zero_hint - increment if not null -+ * @v: pointer of type atomic_t -+ * @hint: probable value of the atomic before the increment -+ * -+ * This version of atomic_inc_not_zero() gives a hint of probable -+ * value of the atomic. This helps processor to not read the memory -+ * before doing the atomic read/modify/write cycle, lowering -+ * number of bus transactions on some arches. -+ * -+ * Returns: 0 if increment was not done, 1 otherwise. -+ */ -+#define atomic_inc_not_zero_hint atomic_inc_not_zero_hint -+static inline int atomic_inc_not_zero_hint(atomic_t *v, int hint) -+{ -+ int val, c = hint, new; -+ -+ /* sanity test, should be removed by compiler if hint is a constant */ -+ if (!hint) -+ return __atomic_add_unless(v, 1, 0); -+ -+ do { -+ asm volatile("incl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "decl %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=r" (new) -+ : "0" (c)); -+ -+ val = atomic_cmpxchg(v, c, new); -+ if (val == c) -+ return 1; -+ c = val; -+ } while (c); -+ -+ return 0; -+} - - /* - * atomic_dec_if_positive - decrement by 1 if old value positive -diff --git a/arch/x86/include/asm/atomic64_32.h b/arch/x86/include/asm/atomic64_32.h -index 1981199..36b9dfb 100644 ---- a/arch/x86/include/asm/atomic64_32.h -+++ b/arch/x86/include/asm/atomic64_32.h -@@ -12,6 +12,14 @@ typedef struct { - u64 __aligned(8) counter; - } atomic64_t; - -+#ifdef CONFIG_PAX_REFCOUNT -+typedef struct { -+ u64 __aligned(8) counter; -+} atomic64_unchecked_t; -+#else -+typedef atomic64_t atomic64_unchecked_t; -+#endif -+ - #define ATOMIC64_INIT(val) { (val) } - - #define __ATOMIC64_DECL(sym) void atomic64_##sym(atomic64_t *, ...) -@@ -37,21 +45,31 @@ typedef struct { - ATOMIC64_DECL_ONE(sym##_386) - - ATOMIC64_DECL_ONE(add_386); -+ATOMIC64_DECL_ONE(add_unchecked_386); - ATOMIC64_DECL_ONE(sub_386); -+ATOMIC64_DECL_ONE(sub_unchecked_386); - ATOMIC64_DECL_ONE(inc_386); -+ATOMIC64_DECL_ONE(inc_unchecked_386); - ATOMIC64_DECL_ONE(dec_386); -+ATOMIC64_DECL_ONE(dec_unchecked_386); - #endif - - #define alternative_atomic64(f, out, in...) \ - __alternative_atomic64(f, f, ASM_OUTPUT2(out), ## in) - - ATOMIC64_DECL(read); -+ATOMIC64_DECL(read_unchecked); - ATOMIC64_DECL(set); -+ATOMIC64_DECL(set_unchecked); - ATOMIC64_DECL(xchg); - ATOMIC64_DECL(add_return); -+ATOMIC64_DECL(add_return_unchecked); - ATOMIC64_DECL(sub_return); -+ATOMIC64_DECL(sub_return_unchecked); - ATOMIC64_DECL(inc_return); -+ATOMIC64_DECL(inc_return_unchecked); - ATOMIC64_DECL(dec_return); -+ATOMIC64_DECL(dec_return_unchecked); - ATOMIC64_DECL(dec_if_positive); - ATOMIC64_DECL(inc_not_zero); - ATOMIC64_DECL(add_unless); -@@ -77,6 +95,21 @@ static inline long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n - } - - /** -+ * atomic64_cmpxchg_unchecked - cmpxchg atomic64 variable -+ * @p: pointer to type atomic64_unchecked_t -+ * @o: expected value -+ * @n: new value -+ * -+ * Atomically sets @v to @n if it was equal to @o and returns -+ * the old value. -+ */ -+ -+static inline long long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long long o, long long n) -+{ -+ return cmpxchg64(&v->counter, o, n); -+} -+ -+/** - * atomic64_xchg - xchg atomic64 variable - * @v: pointer to type atomic64_t - * @n: value to assign -@@ -112,6 +145,22 @@ static inline void atomic64_set(atomic64_t *v, long long i) - } - - /** -+ * atomic64_set_unchecked - set atomic64 variable -+ * @v: pointer to type atomic64_unchecked_t -+ * @n: value to assign -+ * -+ * Atomically sets the value of @v to @n. -+ */ -+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long long i) -+{ -+ unsigned high = (unsigned)(i >> 32); -+ unsigned low = (unsigned)i; -+ alternative_atomic64(set, /* no output */, -+ "S" (v), "b" (low), "c" (high) -+ : "eax", "edx", "memory"); -+} -+ -+/** - * atomic64_read - read atomic64 variable - * @v: pointer to type atomic64_t - * -@@ -125,6 +174,19 @@ static inline long long atomic64_read(const atomic64_t *v) - } - - /** -+ * atomic64_read_unchecked - read atomic64 variable -+ * @v: pointer to type atomic64_unchecked_t -+ * -+ * Atomically reads the value of @v and returns it. -+ */ -+static inline long long atomic64_read_unchecked(atomic64_unchecked_t *v) -+{ -+ long long r; -+ alternative_atomic64(read, "=&A" (r), "c" (v) : "memory"); -+ return r; -+ } -+ -+/** - * atomic64_add_return - add and return - * @i: integer value to add - * @v: pointer to type atomic64_t -@@ -139,6 +201,21 @@ static inline long long atomic64_add_return(long long i, atomic64_t *v) - return i; - } - -+/** -+ * atomic64_add_return_unchecked - add and return -+ * @i: integer value to add -+ * @v: pointer to type atomic64_unchecked_t -+ * -+ * Atomically adds @i to @v and returns @i + *@v -+ */ -+static inline long long atomic64_add_return_unchecked(long long i, atomic64_unchecked_t *v) -+{ -+ alternative_atomic64(add_return_unchecked, -+ ASM_OUTPUT2("+A" (i), "+c" (v)), -+ ASM_NO_INPUT_CLOBBER("memory")); -+ return i; -+} -+ - /* - * Other variants with different arithmetic operators: - */ -@@ -158,6 +235,14 @@ static inline long long atomic64_inc_return(atomic64_t *v) - return a; - } - -+static inline long long atomic64_inc_return_unchecked(atomic64_unchecked_t *v) -+{ -+ long long a; -+ alternative_atomic64(inc_return_unchecked, "=&A" (a), -+ "S" (v) : "memory", "ecx"); -+ return a; -+} -+ - static inline long long atomic64_dec_return(atomic64_t *v) - { - long long a; -@@ -182,6 +267,21 @@ static inline long long atomic64_add(long long i, atomic64_t *v) - } - - /** -+ * atomic64_add_unchecked - add integer to atomic64 variable -+ * @i: integer value to add -+ * @v: pointer to type atomic64_unchecked_t -+ * -+ * Atomically adds @i to @v. -+ */ -+static inline long long atomic64_add_unchecked(long long i, atomic64_unchecked_t *v) -+{ -+ __alternative_atomic64(add_unchecked, add_return_unchecked, -+ ASM_OUTPUT2("+A" (i), "+c" (v)), -+ ASM_NO_INPUT_CLOBBER("memory")); -+ return i; -+} -+ -+/** - * atomic64_sub - subtract the atomic64 variable - * @i: integer value to subtract - * @v: pointer to type atomic64_t -diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h -index 0e1cbfc..5623683 100644 ---- a/arch/x86/include/asm/atomic64_64.h -+++ b/arch/x86/include/asm/atomic64_64.h -@@ -18,7 +18,19 @@ - */ - static inline long atomic64_read(const atomic64_t *v) - { -- return (*(volatile long *)&(v)->counter); -+ return (*(volatile const long *)&(v)->counter); -+} -+ -+/** -+ * atomic64_read_unchecked - read atomic64 variable -+ * @v: pointer of type atomic64_unchecked_t -+ * -+ * Atomically reads the value of @v. -+ * Doesn't imply a read memory barrier. -+ */ -+static inline long atomic64_read_unchecked(const atomic64_unchecked_t *v) -+{ -+ return (*(volatile const long *)&(v)->counter); - } - - /** -@@ -34,6 +46,18 @@ static inline void atomic64_set(atomic64_t *v, long i) - } - - /** -+ * atomic64_set_unchecked - set atomic64 variable -+ * @v: pointer to type atomic64_unchecked_t -+ * @i: required value -+ * -+ * Atomically sets the value of @v to @i. -+ */ -+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i) -+{ -+ v->counter = i; -+} -+ -+/** - * atomic64_add - add integer to atomic64 variable - * @i: integer value to add - * @v: pointer to type atomic64_t -@@ -42,6 +66,28 @@ static inline void atomic64_set(atomic64_t *v, long i) - */ - static inline void atomic64_add(long i, atomic64_t *v) - { -+ asm volatile(LOCK_PREFIX "addq %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subq %1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=m" (v->counter) -+ : "er" (i), "m" (v->counter)); -+} -+ -+/** -+ * atomic64_add_unchecked - add integer to atomic64 variable -+ * @i: integer value to add -+ * @v: pointer to type atomic64_unchecked_t -+ * -+ * Atomically adds @i to @v. -+ */ -+static inline void atomic64_add_unchecked(long i, atomic64_unchecked_t *v) -+{ - asm volatile(LOCK_PREFIX "addq %1,%0" - : "=m" (v->counter) - : "er" (i), "m" (v->counter)); -@@ -56,7 +102,29 @@ static inline void atomic64_add(long i, atomic64_t *v) - */ - static inline void atomic64_sub(long i, atomic64_t *v) - { -- asm volatile(LOCK_PREFIX "subq %1,%0" -+ asm volatile(LOCK_PREFIX "subq %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addq %1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=m" (v->counter) -+ : "er" (i), "m" (v->counter)); -+} -+ -+/** -+ * atomic64_sub_unchecked - subtract the atomic64 variable -+ * @i: integer value to subtract -+ * @v: pointer to type atomic64_unchecked_t -+ * -+ * Atomically subtracts @i from @v. -+ */ -+static inline void atomic64_sub_unchecked(long i, atomic64_unchecked_t *v) -+{ -+ asm volatile(LOCK_PREFIX "subq %1,%0\n" - : "=m" (v->counter) - : "er" (i), "m" (v->counter)); - } -@@ -74,7 +142,16 @@ static inline int atomic64_sub_and_test(long i, atomic64_t *v) - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "subq %2,%0; sete %1" -+ asm volatile(LOCK_PREFIX "subq %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addq %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "=m" (v->counter), "=qm" (c) - : "er" (i), "m" (v->counter) : "memory"); - return c; -@@ -88,6 +165,27 @@ static inline int atomic64_sub_and_test(long i, atomic64_t *v) - */ - static inline void atomic64_inc(atomic64_t *v) - { -+ asm volatile(LOCK_PREFIX "incq %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "decq %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=m" (v->counter) -+ : "m" (v->counter)); -+} -+ -+/** -+ * atomic64_inc_unchecked - increment atomic64 variable -+ * @v: pointer to type atomic64_unchecked_t -+ * -+ * Atomically increments @v by 1. -+ */ -+static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v) -+{ - asm volatile(LOCK_PREFIX "incq %0" - : "=m" (v->counter) - : "m" (v->counter)); -@@ -101,7 +199,28 @@ static inline void atomic64_inc(atomic64_t *v) - */ - static inline void atomic64_dec(atomic64_t *v) - { -- asm volatile(LOCK_PREFIX "decq %0" -+ asm volatile(LOCK_PREFIX "decq %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "incq %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=m" (v->counter) -+ : "m" (v->counter)); -+} -+ -+/** -+ * atomic64_dec_unchecked - decrement atomic64 variable -+ * @v: pointer to type atomic64_t -+ * -+ * Atomically decrements @v by 1. -+ */ -+static inline void atomic64_dec_unchecked(atomic64_unchecked_t *v) -+{ -+ asm volatile(LOCK_PREFIX "decq %0\n" - : "=m" (v->counter) - : "m" (v->counter)); - } -@@ -118,7 +237,16 @@ static inline int atomic64_dec_and_test(atomic64_t *v) - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "decq %0; sete %1" -+ asm volatile(LOCK_PREFIX "decq %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "incq %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "=m" (v->counter), "=qm" (c) - : "m" (v->counter) : "memory"); - return c != 0; -@@ -136,7 +264,16 @@ static inline int atomic64_inc_and_test(atomic64_t *v) - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "incq %0; sete %1" -+ asm volatile(LOCK_PREFIX "incq %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "decq %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "=m" (v->counter), "=qm" (c) - : "m" (v->counter) : "memory"); - return c != 0; -@@ -155,7 +292,16 @@ static inline int atomic64_add_negative(long i, atomic64_t *v) - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "addq %2,%0; sets %1" -+ asm volatile(LOCK_PREFIX "addq %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subq %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sets %1\n" - : "=m" (v->counter), "=qm" (c) - : "er" (i), "m" (v->counter) : "memory"); - return c; -@@ -170,6 +316,18 @@ static inline int atomic64_add_negative(long i, atomic64_t *v) - */ - static inline long atomic64_add_return(long i, atomic64_t *v) - { -+ return i + xadd_check_overflow(&v->counter, i); -+} -+ -+/** -+ * atomic64_add_return_unchecked - add and return -+ * @i: integer value to add -+ * @v: pointer to type atomic64_unchecked_t -+ * -+ * Atomically adds @i to @v and returns @i + @v -+ */ -+static inline long atomic64_add_return_unchecked(long i, atomic64_unchecked_t *v) -+{ - return i + xadd(&v->counter, i); - } - -@@ -179,6 +337,10 @@ static inline long atomic64_sub_return(long i, atomic64_t *v) - } - - #define atomic64_inc_return(v) (atomic64_add_return(1, (v))) -+static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v) -+{ -+ return atomic64_add_return_unchecked(1, v); -+} - #define atomic64_dec_return(v) (atomic64_sub_return(1, (v))) - - static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new) -@@ -186,6 +348,11 @@ static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new) - return cmpxchg(&v->counter, old, new); - } - -+static inline long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long old, long new) -+{ -+ return cmpxchg(&v->counter, old, new); -+} -+ - static inline long atomic64_xchg(atomic64_t *v, long new) - { - return xchg(&v->counter, new); -@@ -202,17 +369,30 @@ static inline long atomic64_xchg(atomic64_t *v, long new) - */ - static inline int atomic64_add_unless(atomic64_t *v, long a, long u) - { -- long c, old; -+ long c, old, new; - c = atomic64_read(v); - for (;;) { -- if (unlikely(c == (u))) -+ if (unlikely(c == u)) - break; -- old = atomic64_cmpxchg((v), c, c + (a)); -+ -+ asm volatile("add %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "sub %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=r" (new) -+ : "0" (c), "ir" (a)); -+ -+ old = atomic64_cmpxchg(v, c, new); - if (likely(old == c)) - break; - c = old; - } -- return c != (u); -+ return c != u; - } - - #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) -diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h -index b97596e..9bd48b06 100644 ---- a/arch/x86/include/asm/bitops.h -+++ b/arch/x86/include/asm/bitops.h -@@ -38,7 +38,7 @@ - * a mask operation on a byte. - */ - #define IS_IMMEDIATE(nr) (__builtin_constant_p(nr)) --#define CONST_MASK_ADDR(nr, addr) BITOP_ADDR((void *)(addr) + ((nr)>>3)) -+#define CONST_MASK_ADDR(nr, addr) BITOP_ADDR((volatile void *)(addr) + ((nr)>>3)) - #define CONST_MASK(nr) (1 << ((nr) & 7)) - - /** -diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h -index 5e1a2ee..c9f9533 100644 ---- a/arch/x86/include/asm/boot.h -+++ b/arch/x86/include/asm/boot.h -@@ -11,10 +11,15 @@ - #include <asm/pgtable_types.h> - - /* Physical address where kernel should be loaded. */ --#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \ -+#define ____LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \ - + (CONFIG_PHYSICAL_ALIGN - 1)) \ - & ~(CONFIG_PHYSICAL_ALIGN - 1)) - -+#ifndef __ASSEMBLY__ -+extern unsigned char __LOAD_PHYSICAL_ADDR[]; -+#define LOAD_PHYSICAL_ADDR ((unsigned long)__LOAD_PHYSICAL_ADDR) -+#endif -+ - /* Minimum kernel alignment, as a power of two */ - #ifdef CONFIG_X86_64 - #define MIN_KERNEL_ALIGN_LG2 PMD_SHIFT -diff --git a/arch/x86/include/asm/cache.h b/arch/x86/include/asm/cache.h -index 48f99f1..d78ebf9 100644 ---- a/arch/x86/include/asm/cache.h -+++ b/arch/x86/include/asm/cache.h -@@ -5,12 +5,13 @@ - - /* L1 cache line size */ - #define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT) --#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - #define __read_mostly __attribute__((__section__(".data..read_mostly"))) -+#define __read_only __attribute__((__section__(".data..read_only"))) - - #define INTERNODE_CACHE_SHIFT CONFIG_X86_INTERNODE_CACHE_SHIFT --#define INTERNODE_CACHE_BYTES (1 << INTERNODE_CACHE_SHIFT) -+#define INTERNODE_CACHE_BYTES (_AC(1,UL) << INTERNODE_CACHE_SHIFT) - - #ifdef CONFIG_X86_VSMP - #ifdef CONFIG_SMP -diff --git a/arch/x86/include/asm/cacheflush.h b/arch/x86/include/asm/cacheflush.h -index 9863ee3..4a1f8e1 100644 ---- a/arch/x86/include/asm/cacheflush.h -+++ b/arch/x86/include/asm/cacheflush.h -@@ -27,7 +27,7 @@ static inline unsigned long get_page_memtype(struct page *pg) - unsigned long pg_flags = pg->flags & _PGMT_MASK; - - if (pg_flags == _PGMT_DEFAULT) -- return -1; -+ return ~0UL; - else if (pg_flags == _PGMT_WC) - return _PAGE_CACHE_WC; - else if (pg_flags == _PGMT_UC_MINUS) -diff --git a/arch/x86/include/asm/checksum_32.h b/arch/x86/include/asm/checksum_32.h -index 46fc474..b02b0f9 100644 ---- a/arch/x86/include/asm/checksum_32.h -+++ b/arch/x86/include/asm/checksum_32.h -@@ -31,6 +31,14 @@ asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst, - int len, __wsum sum, - int *src_err_ptr, int *dst_err_ptr); - -+asmlinkage __wsum csum_partial_copy_generic_to_user(const void *src, void *dst, -+ int len, __wsum sum, -+ int *src_err_ptr, int *dst_err_ptr); -+ -+asmlinkage __wsum csum_partial_copy_generic_from_user(const void *src, void *dst, -+ int len, __wsum sum, -+ int *src_err_ptr, int *dst_err_ptr); -+ - /* - * Note: when you get a NULL pointer exception here this means someone - * passed in an incorrect kernel address to one of these functions. -@@ -50,7 +58,7 @@ static inline __wsum csum_partial_copy_from_user(const void __user *src, - int *err_ptr) - { - might_sleep(); -- return csum_partial_copy_generic((__force void *)src, dst, -+ return csum_partial_copy_generic_from_user((__force void *)src, dst, - len, sum, err_ptr, NULL); - } - -@@ -178,7 +186,7 @@ static inline __wsum csum_and_copy_to_user(const void *src, - { - might_sleep(); - if (access_ok(VERIFY_WRITE, dst, len)) -- return csum_partial_copy_generic(src, (__force void *)dst, -+ return csum_partial_copy_generic_to_user(src, (__force void *)dst, - len, sum, NULL, err_ptr); - - if (len) -diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h -index 99480e5..d81165b 100644 ---- a/arch/x86/include/asm/cmpxchg.h -+++ b/arch/x86/include/asm/cmpxchg.h -@@ -14,8 +14,12 @@ extern void __cmpxchg_wrong_size(void) - __compiletime_error("Bad argument size for cmpxchg"); - extern void __xadd_wrong_size(void) - __compiletime_error("Bad argument size for xadd"); -+extern void __xadd_check_overflow_wrong_size(void) -+ __compiletime_error("Bad argument size for xadd_check_overflow"); - extern void __add_wrong_size(void) - __compiletime_error("Bad argument size for add"); -+extern void __add_check_overflow_wrong_size(void) -+ __compiletime_error("Bad argument size for add_check_overflow"); - - /* - * Constants for operation sizes. On 32-bit, the 64-bit size it set to -@@ -67,6 +71,34 @@ extern void __add_wrong_size(void) - __ret; \ - }) - -+#define __xchg_op_check_overflow(ptr, arg, op, lock) \ -+ ({ \ -+ __typeof__ (*(ptr)) __ret = (arg); \ -+ switch (sizeof(*(ptr))) { \ -+ case __X86_CASE_L: \ -+ asm volatile (lock #op "l %0, %1\n" \ -+ "jno 0f\n" \ -+ "mov %0,%1\n" \ -+ "int $4\n0:\n" \ -+ _ASM_EXTABLE(0b, 0b) \ -+ : "+r" (__ret), "+m" (*(ptr)) \ -+ : : "memory", "cc"); \ -+ break; \ -+ case __X86_CASE_Q: \ -+ asm volatile (lock #op "q %q0, %1\n" \ -+ "jno 0f\n" \ -+ "mov %0,%1\n" \ -+ "int $4\n0:\n" \ -+ _ASM_EXTABLE(0b, 0b) \ -+ : "+r" (__ret), "+m" (*(ptr)) \ -+ : : "memory", "cc"); \ -+ break; \ -+ default: \ -+ __ ## op ## _check_overflow_wrong_size(); \ -+ } \ -+ __ret; \ -+ }) -+ - /* - * Note: no "lock" prefix even on SMP: xchg always implies lock anyway. - * Since this is generally used to protect other memory information, we -@@ -167,6 +199,9 @@ extern void __add_wrong_size(void) - #define xadd_sync(ptr, inc) __xadd((ptr), (inc), "lock; ") - #define xadd_local(ptr, inc) __xadd((ptr), (inc), "") - -+#define __xadd_check_overflow(ptr, inc, lock) __xchg_op_check_overflow((ptr), (inc), xadd, lock) -+#define xadd_check_overflow(ptr, inc) __xadd_check_overflow((ptr), (inc), LOCK_PREFIX) -+ - #define __add(ptr, inc, lock) \ - ({ \ - __typeof__ (*(ptr)) __ret = (inc); \ -diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h -index 340ee49..4238ced 100644 ---- a/arch/x86/include/asm/cpufeature.h -+++ b/arch/x86/include/asm/cpufeature.h -@@ -371,7 +371,7 @@ static __always_inline __pure bool __static_cpu_has(u16 bit) - ".section .discard,\"aw\",@progbits\n" - " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */ - ".previous\n" -- ".section .altinstr_replacement,\"ax\"\n" -+ ".section .altinstr_replacement,\"a\"\n" - "3: movb $1,%0\n" - "4:\n" - ".previous\n" -diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h -index e95822d..a90010e 100644 ---- a/arch/x86/include/asm/desc.h -+++ b/arch/x86/include/asm/desc.h -@@ -4,6 +4,7 @@ - #include <asm/desc_defs.h> - #include <asm/ldt.h> - #include <asm/mmu.h> -+#include <asm/pgtable.h> - - #include <linux/smp.h> - -@@ -16,6 +17,7 @@ static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *in - - desc->type = (info->read_exec_only ^ 1) << 1; - desc->type |= info->contents << 2; -+ desc->type |= info->seg_not_present ^ 1; - - desc->s = 1; - desc->dpl = 0x3; -@@ -34,19 +36,14 @@ static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *in - } - - extern struct desc_ptr idt_descr; --extern gate_desc idt_table[]; - extern struct desc_ptr nmi_idt_descr; --extern gate_desc nmi_idt_table[]; -- --struct gdt_page { -- struct desc_struct gdt[GDT_ENTRIES]; --} __attribute__((aligned(PAGE_SIZE))); -- --DECLARE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page); -+extern gate_desc idt_table[256]; -+extern gate_desc nmi_idt_table[256]; - -+extern struct desc_struct cpu_gdt_table[NR_CPUS][PAGE_SIZE / sizeof(struct desc_struct)]; - static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu) - { -- return per_cpu(gdt_page, cpu).gdt; -+ return cpu_gdt_table[cpu]; - } - - #ifdef CONFIG_X86_64 -@@ -71,8 +68,14 @@ static inline void pack_gate(gate_desc *gate, unsigned char type, - unsigned long base, unsigned dpl, unsigned flags, - unsigned short seg) - { -- gate->a = (seg << 16) | (base & 0xffff); -- gate->b = (base & 0xffff0000) | (((0x80 | type | (dpl << 5)) & 0xff) << 8); -+ gate->gate.offset_low = base; -+ gate->gate.seg = seg; -+ gate->gate.reserved = 0; -+ gate->gate.type = type; -+ gate->gate.s = 0; -+ gate->gate.dpl = dpl; -+ gate->gate.p = 1; -+ gate->gate.offset_high = base >> 16; - } - - #endif -@@ -117,12 +120,16 @@ static inline void paravirt_free_ldt(struct desc_struct *ldt, unsigned entries) - - static inline void native_write_idt_entry(gate_desc *idt, int entry, const gate_desc *gate) - { -+ pax_open_kernel(); - memcpy(&idt[entry], gate, sizeof(*gate)); -+ pax_close_kernel(); - } - - static inline void native_write_ldt_entry(struct desc_struct *ldt, int entry, const void *desc) - { -+ pax_open_kernel(); - memcpy(&ldt[entry], desc, 8); -+ pax_close_kernel(); - } - - static inline void -@@ -136,7 +143,9 @@ native_write_gdt_entry(struct desc_struct *gdt, int entry, const void *desc, int - default: size = sizeof(*gdt); break; - } - -+ pax_open_kernel(); - memcpy(&gdt[entry], desc, size); -+ pax_close_kernel(); - } - - static inline void pack_descriptor(struct desc_struct *desc, unsigned long base, -@@ -209,7 +218,9 @@ static inline void native_set_ldt(const void *addr, unsigned int entries) - - static inline void native_load_tr_desc(void) - { -+ pax_open_kernel(); - asm volatile("ltr %w0"::"q" (GDT_ENTRY_TSS*8)); -+ pax_close_kernel(); - } - - static inline void native_load_gdt(const struct desc_ptr *dtr) -@@ -246,8 +257,10 @@ static inline void native_load_tls(struct thread_struct *t, unsigned int cpu) - struct desc_struct *gdt = get_cpu_gdt_table(cpu); - unsigned int i; - -+ pax_open_kernel(); - for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++) - gdt[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i]; -+ pax_close_kernel(); - } - - #define _LDT_empty(info) \ -@@ -310,7 +323,7 @@ static inline void set_desc_limit(struct desc_struct *desc, unsigned long limit) - } - - #ifdef CONFIG_X86_64 --static inline void set_nmi_gate(int gate, void *addr) -+static inline void set_nmi_gate(int gate, const void *addr) - { - gate_desc s; - -@@ -319,7 +332,7 @@ static inline void set_nmi_gate(int gate, void *addr) - } - #endif - --static inline void _set_gate(int gate, unsigned type, void *addr, -+static inline void _set_gate(int gate, unsigned type, const void *addr, - unsigned dpl, unsigned ist, unsigned seg) - { - gate_desc s; -@@ -338,7 +351,7 @@ static inline void _set_gate(int gate, unsigned type, void *addr, - * Pentium F0 0F bugfix can have resulted in the mapped - * IDT being write-protected. - */ --static inline void set_intr_gate(unsigned int n, void *addr) -+static inline void set_intr_gate(unsigned int n, const void *addr) - { - BUG_ON((unsigned)n > 0xFF); - _set_gate(n, GATE_INTERRUPT, addr, 0, 0, __KERNEL_CS); -@@ -368,19 +381,19 @@ static inline void alloc_intr_gate(unsigned int n, void *addr) - /* - * This routine sets up an interrupt gate at directory privilege level 3. - */ --static inline void set_system_intr_gate(unsigned int n, void *addr) -+static inline void set_system_intr_gate(unsigned int n, const void *addr) - { - BUG_ON((unsigned)n > 0xFF); - _set_gate(n, GATE_INTERRUPT, addr, 0x3, 0, __KERNEL_CS); - } - --static inline void set_system_trap_gate(unsigned int n, void *addr) -+static inline void set_system_trap_gate(unsigned int n, const void *addr) - { - BUG_ON((unsigned)n > 0xFF); - _set_gate(n, GATE_TRAP, addr, 0x3, 0, __KERNEL_CS); - } - --static inline void set_trap_gate(unsigned int n, void *addr) -+static inline void set_trap_gate(unsigned int n, const void *addr) - { - BUG_ON((unsigned)n > 0xFF); - _set_gate(n, GATE_TRAP, addr, 0, 0, __KERNEL_CS); -@@ -389,19 +402,31 @@ static inline void set_trap_gate(unsigned int n, void *addr) - static inline void set_task_gate(unsigned int n, unsigned int gdt_entry) - { - BUG_ON((unsigned)n > 0xFF); -- _set_gate(n, GATE_TASK, (void *)0, 0, 0, (gdt_entry<<3)); -+ _set_gate(n, GATE_TASK, (const void *)0, 0, 0, (gdt_entry<<3)); - } - --static inline void set_intr_gate_ist(int n, void *addr, unsigned ist) -+static inline void set_intr_gate_ist(int n, const void *addr, unsigned ist) - { - BUG_ON((unsigned)n > 0xFF); - _set_gate(n, GATE_INTERRUPT, addr, 0, ist, __KERNEL_CS); - } - --static inline void set_system_intr_gate_ist(int n, void *addr, unsigned ist) -+static inline void set_system_intr_gate_ist(int n, const void *addr, unsigned ist) - { - BUG_ON((unsigned)n > 0xFF); - _set_gate(n, GATE_INTERRUPT, addr, 0x3, ist, __KERNEL_CS); - } - -+#ifdef CONFIG_X86_32 -+static inline void set_user_cs(unsigned long base, unsigned long limit, int cpu) -+{ -+ struct desc_struct d; -+ -+ if (likely(limit)) -+ limit = (limit - 1UL) >> PAGE_SHIFT; -+ pack_descriptor(&d, base, limit, 0xFB, 0xC); -+ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_DEFAULT_USER_CS, &d, DESCTYPE_S); -+} -+#endif -+ - #endif /* _ASM_X86_DESC_H */ -diff --git a/arch/x86/include/asm/desc_defs.h b/arch/x86/include/asm/desc_defs.h -index 278441f..b95a174 100644 ---- a/arch/x86/include/asm/desc_defs.h -+++ b/arch/x86/include/asm/desc_defs.h -@@ -31,6 +31,12 @@ struct desc_struct { - unsigned base1: 8, type: 4, s: 1, dpl: 2, p: 1; - unsigned limit: 4, avl: 1, l: 1, d: 1, g: 1, base2: 8; - }; -+ struct { -+ u16 offset_low; -+ u16 seg; -+ unsigned reserved: 8, type: 4, s: 1, dpl: 2, p: 1; -+ unsigned offset_high: 16; -+ } gate; - }; - } __attribute__((packed)); - -diff --git a/arch/x86/include/asm/e820.h b/arch/x86/include/asm/e820.h -index 3778256..c5d4fce 100644 ---- a/arch/x86/include/asm/e820.h -+++ b/arch/x86/include/asm/e820.h -@@ -69,7 +69,7 @@ struct e820map { - #define ISA_START_ADDRESS 0xa0000 - #define ISA_END_ADDRESS 0x100000 - --#define BIOS_BEGIN 0x000a0000 -+#define BIOS_BEGIN 0x000c0000 - #define BIOS_END 0x00100000 - - #define BIOS_ROM_BASE 0xffe00000 -diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h -index 5939f44..f8845f6 100644 ---- a/arch/x86/include/asm/elf.h -+++ b/arch/x86/include/asm/elf.h -@@ -243,7 +243,25 @@ extern int force_personality32; - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - -+#ifdef CONFIG_PAX_SEGMEXEC -+#define ELF_ET_DYN_BASE ((current->mm->pax_flags & MF_PAX_SEGMEXEC) ? SEGMEXEC_TASK_SIZE/3*2 : TASK_SIZE/3*2) -+#else - #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) -+#endif -+ -+#ifdef CONFIG_PAX_ASLR -+#ifdef CONFIG_X86_32 -+#define PAX_ELF_ET_DYN_BASE 0x10000000UL -+ -+#define PAX_DELTA_MMAP_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16) -+#define PAX_DELTA_STACK_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16) -+#else -+#define PAX_ELF_ET_DYN_BASE 0x400000UL -+ -+#define PAX_DELTA_MMAP_LEN ((test_thread_flag(TIF_ADDR32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3) -+#define PAX_DELTA_STACK_LEN ((test_thread_flag(TIF_ADDR32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3) -+#endif -+#endif - - /* This yields a mask that user programs can use to figure out what - instruction set this CPU supports. This could be done in user space, -@@ -296,16 +314,12 @@ do { \ - - #define ARCH_DLINFO \ - do { \ -- if (vdso_enabled) \ -- NEW_AUX_ENT(AT_SYSINFO_EHDR, \ -- (unsigned long)current->mm->context.vdso); \ -+ NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso); \ - } while (0) - - #define ARCH_DLINFO_X32 \ - do { \ -- if (vdso_enabled) \ -- NEW_AUX_ENT(AT_SYSINFO_EHDR, \ -- (unsigned long)current->mm->context.vdso); \ -+ NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso); \ - } while (0) - - #define AT_SYSINFO 32 -@@ -320,7 +334,7 @@ else \ - - #endif /* !CONFIG_X86_32 */ - --#define VDSO_CURRENT_BASE ((unsigned long)current->mm->context.vdso) -+#define VDSO_CURRENT_BASE (current->mm->context.vdso) - - #define VDSO_ENTRY \ - ((unsigned long)VDSO32_SYMBOL(VDSO_CURRENT_BASE, vsyscall)) -@@ -336,9 +350,6 @@ extern int x32_setup_additional_pages(struct linux_binprm *bprm, - extern int syscall32_setup_pages(struct linux_binprm *, int exstack); - #define compat_arch_setup_additional_pages syscall32_setup_pages - --extern unsigned long arch_randomize_brk(struct mm_struct *mm); --#define arch_randomize_brk arch_randomize_brk -- - /* - * True on X86_32 or when emulating IA32 on X86_64 - */ -diff --git a/arch/x86/include/asm/emergency-restart.h b/arch/x86/include/asm/emergency-restart.h -index cc70c1c..d96d011 100644 ---- a/arch/x86/include/asm/emergency-restart.h -+++ b/arch/x86/include/asm/emergency-restart.h -@@ -15,6 +15,6 @@ enum reboot_type { - - extern enum reboot_type reboot_type; - --extern void machine_emergency_restart(void); -+extern void machine_emergency_restart(void) __noreturn; - - #endif /* _ASM_X86_EMERGENCY_RESTART_H */ -diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h -index 4fa8815..71b121a 100644 ---- a/arch/x86/include/asm/fpu-internal.h -+++ b/arch/x86/include/asm/fpu-internal.h -@@ -86,6 +86,11 @@ static inline int fxrstor_checking(struct i387_fxsave_struct *fx) - { - int err; - -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ if ((unsigned long)fx < PAX_USER_SHADOW_BASE) -+ fx = (struct i387_fxsave_struct __user *)((void *)fx + PAX_USER_SHADOW_BASE); -+#endif -+ - /* See comment in fxsave() below. */ - #ifdef CONFIG_AS_FXSAVEQ - asm volatile("1: fxrstorq %[fx]\n\t" -@@ -115,6 +120,11 @@ static inline int fxsave_user(struct i387_fxsave_struct __user *fx) - { - int err; - -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ if ((unsigned long)fx < PAX_USER_SHADOW_BASE) -+ fx = (struct i387_fxsave_struct __user *)((void __user *)fx + PAX_USER_SHADOW_BASE); -+#endif -+ - /* - * Clear the bytes not touched by the fxsave and reserved - * for the SW usage. -@@ -271,7 +281,7 @@ static inline int restore_fpu_checking(struct task_struct *tsk) - "emms\n\t" /* clear stack tags */ - "fildl %P[addr]", /* set F?P to defined value */ - X86_FEATURE_FXSAVE_LEAK, -- [addr] "m" (tsk->thread.fpu.has_fpu)); -+ [addr] "m" (init_tss[smp_processor_id()].x86_tss.sp0)); - - return fpu_restore_checking(&tsk->thread.fpu); - } -diff --git a/arch/x86/include/asm/futex.h b/arch/x86/include/asm/futex.h -index 71ecbcb..bac10b7 100644 ---- a/arch/x86/include/asm/futex.h -+++ b/arch/x86/include/asm/futex.h -@@ -11,16 +11,18 @@ - #include <asm/processor.h> - - #define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \ -+ typecheck(u32 __user *, uaddr); \ - asm volatile("1:\t" insn "\n" \ - "2:\t.section .fixup,\"ax\"\n" \ - "3:\tmov\t%3, %1\n" \ - "\tjmp\t2b\n" \ - "\t.previous\n" \ - _ASM_EXTABLE(1b, 3b) \ -- : "=r" (oldval), "=r" (ret), "+m" (*uaddr) \ -+ : "=r" (oldval), "=r" (ret), "+m" (*(u32 __user *)____m(uaddr))\ - : "i" (-EFAULT), "0" (oparg), "1" (0)) - - #define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \ -+ typecheck(u32 __user *, uaddr); \ - asm volatile("1:\tmovl %2, %0\n" \ - "\tmovl\t%0, %3\n" \ - "\t" insn "\n" \ -@@ -33,7 +35,7 @@ - _ASM_EXTABLE(1b, 4b) \ - _ASM_EXTABLE(2b, 4b) \ - : "=&a" (oldval), "=&r" (ret), \ -- "+m" (*uaddr), "=&r" (tem) \ -+ "+m" (*(u32 __user *)____m(uaddr)), "=&r" (tem) \ - : "r" (oparg), "i" (-EFAULT), "1" (0)) - - static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr) -@@ -60,10 +62,10 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr) - - switch (op) { - case FUTEX_OP_SET: -- __futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg); -+ __futex_atomic_op1(__copyuser_seg"xchgl %0, %2", ret, oldval, uaddr, oparg); - break; - case FUTEX_OP_ADD: -- __futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, oldval, -+ __futex_atomic_op1(LOCK_PREFIX __copyuser_seg"xaddl %0, %2", ret, oldval, - uaddr, oparg); - break; - case FUTEX_OP_OR: -@@ -122,13 +124,13 @@ static inline int futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, - if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32))) - return -EFAULT; - -- asm volatile("1:\t" LOCK_PREFIX "cmpxchgl %4, %2\n" -+ asm volatile("1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgl %4, %2\n" - "2:\t.section .fixup, \"ax\"\n" - "3:\tmov %3, %0\n" - "\tjmp 2b\n" - "\t.previous\n" - _ASM_EXTABLE(1b, 3b) -- : "+r" (ret), "=a" (oldval), "+m" (*uaddr) -+ : "+r" (ret), "=a" (oldval), "+m" (*(u32 __user *)____m(uaddr)) - : "i" (-EFAULT), "r" (newval), "1" (oldval) - : "memory" - ); -diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h -index eb92a6e..b98b2f4 100644 ---- a/arch/x86/include/asm/hw_irq.h -+++ b/arch/x86/include/asm/hw_irq.h -@@ -136,8 +136,8 @@ extern void setup_ioapic_dest(void); - extern void enable_IO_APIC(void); - - /* Statistics */ --extern atomic_t irq_err_count; --extern atomic_t irq_mis_count; -+extern atomic_unchecked_t irq_err_count; -+extern atomic_unchecked_t irq_mis_count; - - /* EISA */ - extern void eisa_set_level_irq(unsigned int irq); -diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h -index d8e8eef..99f81ae 100644 ---- a/arch/x86/include/asm/io.h -+++ b/arch/x86/include/asm/io.h -@@ -194,6 +194,17 @@ extern void set_iounmap_nonlazy(void); - - #include <linux/vmalloc.h> - -+#define ARCH_HAS_VALID_PHYS_ADDR_RANGE -+static inline int valid_phys_addr_range(unsigned long addr, size_t count) -+{ -+ return ((addr + count + PAGE_SIZE - 1) >> PAGE_SHIFT) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0; -+} -+ -+static inline int valid_mmap_phys_addr_range(unsigned long pfn, size_t count) -+{ -+ return (pfn + (count >> PAGE_SHIFT)) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0; -+} -+ - /* - * Convert a virtual cached pointer to an uncached pointer - */ -diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h -index bba3cf8..06bc8da 100644 ---- a/arch/x86/include/asm/irqflags.h -+++ b/arch/x86/include/asm/irqflags.h -@@ -141,6 +141,11 @@ static inline notrace unsigned long arch_local_irq_save(void) - sti; \ - sysexit - -+#define GET_CR0_INTO_RDI mov %cr0, %rdi -+#define SET_RDI_INTO_CR0 mov %rdi, %cr0 -+#define GET_CR3_INTO_RDI mov %cr3, %rdi -+#define SET_RDI_INTO_CR3 mov %rdi, %cr3 -+ - #else - #define INTERRUPT_RETURN iret - #define ENABLE_INTERRUPTS_SYSEXIT sti; sysexit -diff --git a/arch/x86/include/asm/kprobes.h b/arch/x86/include/asm/kprobes.h -index 5478825..839e88c 100644 ---- a/arch/x86/include/asm/kprobes.h -+++ b/arch/x86/include/asm/kprobes.h -@@ -37,13 +37,8 @@ typedef u8 kprobe_opcode_t; - #define RELATIVEJUMP_SIZE 5 - #define RELATIVECALL_OPCODE 0xe8 - #define RELATIVE_ADDR_SIZE 4 --#define MAX_STACK_SIZE 64 --#define MIN_STACK_SIZE(ADDR) \ -- (((MAX_STACK_SIZE) < (((unsigned long)current_thread_info()) + \ -- THREAD_SIZE - (unsigned long)(ADDR))) \ -- ? (MAX_STACK_SIZE) \ -- : (((unsigned long)current_thread_info()) + \ -- THREAD_SIZE - (unsigned long)(ADDR))) -+#define MAX_STACK_SIZE 64UL -+#define MIN_STACK_SIZE(ADDR) min(MAX_STACK_SIZE, current->thread.sp0 - (unsigned long)(ADDR)) - - #define flush_insn_slot(p) do { } while (0) - -diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h -index e216ba0..453f6ec 100644 ---- a/arch/x86/include/asm/kvm_host.h -+++ b/arch/x86/include/asm/kvm_host.h -@@ -679,7 +679,7 @@ struct kvm_x86_ops { - int (*check_intercept)(struct kvm_vcpu *vcpu, - struct x86_instruction_info *info, - enum x86_intercept_stage stage); --}; -+} __do_const; - - struct kvm_arch_async_pf { - u32 token; -diff --git a/arch/x86/include/asm/local.h b/arch/x86/include/asm/local.h -index c8bed0d..e5721fa 100644 ---- a/arch/x86/include/asm/local.h -+++ b/arch/x86/include/asm/local.h -@@ -17,26 +17,58 @@ typedef struct { - - static inline void local_inc(local_t *l) - { -- asm volatile(_ASM_INC "%0" -+ asm volatile(_ASM_INC "%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ _ASM_DEC "%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+m" (l->a.counter)); - } - - static inline void local_dec(local_t *l) - { -- asm volatile(_ASM_DEC "%0" -+ asm volatile(_ASM_DEC "%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ _ASM_INC "%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+m" (l->a.counter)); - } - - static inline void local_add(long i, local_t *l) - { -- asm volatile(_ASM_ADD "%1,%0" -+ asm volatile(_ASM_ADD "%1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ _ASM_SUB "%1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+m" (l->a.counter) - : "ir" (i)); - } - - static inline void local_sub(long i, local_t *l) - { -- asm volatile(_ASM_SUB "%1,%0" -+ asm volatile(_ASM_SUB "%1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ _ASM_ADD "%1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+m" (l->a.counter) - : "ir" (i)); - } -@@ -54,7 +86,16 @@ static inline int local_sub_and_test(long i, local_t *l) - { - unsigned char c; - -- asm volatile(_ASM_SUB "%2,%0; sete %1" -+ asm volatile(_ASM_SUB "%2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ _ASM_ADD "%2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "+m" (l->a.counter), "=qm" (c) - : "ir" (i) : "memory"); - return c; -@@ -72,7 +113,16 @@ static inline int local_dec_and_test(local_t *l) - { - unsigned char c; - -- asm volatile(_ASM_DEC "%0; sete %1" -+ asm volatile(_ASM_DEC "%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ _ASM_INC "%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "+m" (l->a.counter), "=qm" (c) - : : "memory"); - return c != 0; -@@ -90,7 +140,16 @@ static inline int local_inc_and_test(local_t *l) - { - unsigned char c; - -- asm volatile(_ASM_INC "%0; sete %1" -+ asm volatile(_ASM_INC "%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ _ASM_DEC "%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "+m" (l->a.counter), "=qm" (c) - : : "memory"); - return c != 0; -@@ -109,7 +168,16 @@ static inline int local_add_negative(long i, local_t *l) - { - unsigned char c; - -- asm volatile(_ASM_ADD "%2,%0; sets %1" -+ asm volatile(_ASM_ADD "%2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ _ASM_SUB "%2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sets %1\n" - : "+m" (l->a.counter), "=qm" (c) - : "ir" (i) : "memory"); - return c; -@@ -132,7 +200,15 @@ static inline long local_add_return(long i, local_t *l) - #endif - /* Modern 486+ processor */ - __i = i; -- asm volatile(_ASM_XADD "%0, %1;" -+ asm volatile(_ASM_XADD "%0, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ _ASM_MOV "%0,%1\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+r" (i), "+m" (l->a.counter) - : : "memory"); - return i + __i; -diff --git a/arch/x86/include/asm/mman.h b/arch/x86/include/asm/mman.h -index 593e51d..fa69c9a 100644 ---- a/arch/x86/include/asm/mman.h -+++ b/arch/x86/include/asm/mman.h -@@ -5,4 +5,14 @@ - - #include <asm-generic/mman.h> - -+#ifdef __KERNEL__ -+#ifndef __ASSEMBLY__ -+#ifdef CONFIG_X86_32 -+#define arch_mmap_check i386_mmap_check -+int i386_mmap_check(unsigned long addr, unsigned long len, -+ unsigned long flags); -+#endif -+#endif -+#endif -+ - #endif /* _ASM_X86_MMAN_H */ -diff --git a/arch/x86/include/asm/mmu.h b/arch/x86/include/asm/mmu.h -index 5f55e69..e20bfb1 100644 ---- a/arch/x86/include/asm/mmu.h -+++ b/arch/x86/include/asm/mmu.h -@@ -9,7 +9,7 @@ - * we put the segment information here. - */ - typedef struct { -- void *ldt; -+ struct desc_struct *ldt; - int size; - - #ifdef CONFIG_X86_64 -@@ -18,7 +18,19 @@ typedef struct { - #endif - - struct mutex lock; -- void *vdso; -+ unsigned long vdso; -+ -+#ifdef CONFIG_X86_32 -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ unsigned long user_cs_base; -+ unsigned long user_cs_limit; -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP) -+ cpumask_t cpu_user_cs_mask; -+#endif -+ -+#endif -+#endif - } mm_context_t; - - #ifdef CONFIG_SMP -diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h -index 6902152..da4283a 100644 ---- a/arch/x86/include/asm/mmu_context.h -+++ b/arch/x86/include/asm/mmu_context.h -@@ -24,6 +24,18 @@ void destroy_context(struct mm_struct *mm); - - static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) - { -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ unsigned int i; -+ pgd_t *pgd; -+ -+ pax_open_kernel(); -+ pgd = get_cpu_pgd(smp_processor_id()); -+ for (i = USER_PGD_PTRS; i < 2 * USER_PGD_PTRS; ++i) -+ set_pgd_batched(pgd+i, native_make_pgd(0)); -+ pax_close_kernel(); -+#endif -+ - #ifdef CONFIG_SMP - if (percpu_read(cpu_tlbstate.state) == TLBSTATE_OK) - percpu_write(cpu_tlbstate.state, TLBSTATE_LAZY); -@@ -34,16 +46,30 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, - struct task_struct *tsk) - { - unsigned cpu = smp_processor_id(); -+#if defined(CONFIG_X86_32) && defined(CONFIG_SMP) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)) -+ int tlbstate = TLBSTATE_OK; -+#endif - - if (likely(prev != next)) { - #ifdef CONFIG_SMP -+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)) -+ tlbstate = percpu_read(cpu_tlbstate.state); -+#endif - percpu_write(cpu_tlbstate.state, TLBSTATE_OK); - percpu_write(cpu_tlbstate.active_mm, next); - #endif - cpumask_set_cpu(cpu, mm_cpumask(next)); - - /* Re-load page tables */ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ pax_open_kernel(); -+ __clone_user_pgds(get_cpu_pgd(cpu), next->pgd); -+ __shadow_user_pgds(get_cpu_pgd(cpu) + USER_PGD_PTRS, next->pgd); -+ pax_close_kernel(); -+ load_cr3(get_cpu_pgd(cpu)); -+#else - load_cr3(next->pgd); -+#endif - - /* stop flush ipis for the previous mm */ - cpumask_clear_cpu(cpu, mm_cpumask(prev)); -@@ -53,9 +79,38 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, - */ - if (unlikely(prev->context.ldt != next->context.ldt)) - load_LDT_nolock(&next->context); -- } -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP) -+ if (!(__supported_pte_mask & _PAGE_NX)) { -+ smp_mb__before_clear_bit(); -+ cpu_clear(cpu, prev->context.cpu_user_cs_mask); -+ smp_mb__after_clear_bit(); -+ cpu_set(cpu, next->context.cpu_user_cs_mask); -+ } -+#endif -+ -+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)) -+ if (unlikely(prev->context.user_cs_base != next->context.user_cs_base || -+ prev->context.user_cs_limit != next->context.user_cs_limit)) -+ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu); - #ifdef CONFIG_SMP -+ else if (unlikely(tlbstate != TLBSTATE_OK)) -+ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu); -+#endif -+#endif -+ -+ } - else { -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ pax_open_kernel(); -+ __clone_user_pgds(get_cpu_pgd(cpu), next->pgd); -+ __shadow_user_pgds(get_cpu_pgd(cpu) + USER_PGD_PTRS, next->pgd); -+ pax_close_kernel(); -+ load_cr3(get_cpu_pgd(cpu)); -+#endif -+ -+#ifdef CONFIG_SMP - percpu_write(cpu_tlbstate.state, TLBSTATE_OK); - BUG_ON(percpu_read(cpu_tlbstate.active_mm) != next); - -@@ -64,11 +119,28 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, - * tlb flush IPI delivery. We must reload CR3 - * to make sure to use no freed page tables. - */ -+ -+#ifndef CONFIG_PAX_PER_CPU_PGD - load_cr3(next->pgd); -+#endif -+ - load_LDT_nolock(&next->context); -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) -+ if (!(__supported_pte_mask & _PAGE_NX)) -+ cpu_set(cpu, next->context.cpu_user_cs_mask); -+#endif -+ -+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)) -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!((next->pax_flags & MF_PAX_PAGEEXEC) && (__supported_pte_mask & _PAGE_NX))) -+#endif -+ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu); -+#endif -+ - } -+#endif - } --#endif - } - - #define activate_mm(prev, next) \ -diff --git a/arch/x86/include/asm/module.h b/arch/x86/include/asm/module.h -index 9eae775..c914fea 100644 ---- a/arch/x86/include/asm/module.h -+++ b/arch/x86/include/asm/module.h -@@ -5,6 +5,7 @@ - - #ifdef CONFIG_X86_64 - /* X86_64 does not define MODULE_PROC_FAMILY */ -+#define MODULE_PROC_FAMILY "" - #elif defined CONFIG_M386 - #define MODULE_PROC_FAMILY "386 " - #elif defined CONFIG_M486 -@@ -59,8 +60,20 @@ - #error unknown processor family - #endif - --#ifdef CONFIG_X86_32 --# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS -+#define MODULE_PAX_KERNEXEC "KERNEXEC_BTS " -+#elif defined(CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR) -+#define MODULE_PAX_KERNEXEC "KERNEXEC_OR " -+#else -+#define MODULE_PAX_KERNEXEC "" - #endif - -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+#define MODULE_PAX_UDEREF "UDEREF " -+#else -+#define MODULE_PAX_UDEREF "" -+#endif -+ -+#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_PAX_KERNEXEC MODULE_PAX_UDEREF -+ - #endif /* _ASM_X86_MODULE_H */ -diff --git a/arch/x86/include/asm/page_64_types.h b/arch/x86/include/asm/page_64_types.h -index 7639dbf..e08a58c 100644 ---- a/arch/x86/include/asm/page_64_types.h -+++ b/arch/x86/include/asm/page_64_types.h -@@ -56,7 +56,7 @@ void copy_page(void *to, void *from); - - /* duplicated to the one in bootmem.h */ - extern unsigned long max_pfn; --extern unsigned long phys_base; -+extern const unsigned long phys_base; - - extern unsigned long __phys_addr(unsigned long); - #define __phys_reloc_hide(x) (x) -diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h -index aa0f913..0c5bc6a 100644 ---- a/arch/x86/include/asm/paravirt.h -+++ b/arch/x86/include/asm/paravirt.h -@@ -668,6 +668,18 @@ static inline void set_pgd(pgd_t *pgdp, pgd_t pgd) - val); - } - -+static inline void set_pgd_batched(pgd_t *pgdp, pgd_t pgd) -+{ -+ pgdval_t val = native_pgd_val(pgd); -+ -+ if (sizeof(pgdval_t) > sizeof(long)) -+ PVOP_VCALL3(pv_mmu_ops.set_pgd_batched, pgdp, -+ val, (u64)val >> 32); -+ else -+ PVOP_VCALL2(pv_mmu_ops.set_pgd_batched, pgdp, -+ val); -+} -+ - static inline void pgd_clear(pgd_t *pgdp) - { - set_pgd(pgdp, __pgd(0)); -@@ -749,6 +761,21 @@ static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx, - pv_mmu_ops.set_fixmap(idx, phys, flags); - } - -+#ifdef CONFIG_PAX_KERNEXEC -+static inline unsigned long pax_open_kernel(void) -+{ -+ return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_open_kernel); -+} -+ -+static inline unsigned long pax_close_kernel(void) -+{ -+ return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_close_kernel); -+} -+#else -+static inline unsigned long pax_open_kernel(void) { return 0; } -+static inline unsigned long pax_close_kernel(void) { return 0; } -+#endif -+ - #if defined(CONFIG_SMP) && defined(CONFIG_PARAVIRT_SPINLOCKS) - - static inline int arch_spin_is_locked(struct arch_spinlock *lock) -@@ -965,7 +992,7 @@ extern void default_banner(void); - - #define PARA_PATCH(struct, off) ((PARAVIRT_PATCH_##struct + (off)) / 4) - #define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .long, 4) --#define PARA_INDIRECT(addr) *%cs:addr -+#define PARA_INDIRECT(addr) *%ss:addr - #endif - - #define INTERRUPT_RETURN \ -@@ -1042,6 +1069,21 @@ extern void default_banner(void); - PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_irq_enable_sysexit), \ - CLBR_NONE, \ - jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_irq_enable_sysexit)) -+ -+#define GET_CR0_INTO_RDI \ -+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0); \ -+ mov %rax,%rdi -+ -+#define SET_RDI_INTO_CR0 \ -+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0) -+ -+#define GET_CR3_INTO_RDI \ -+ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_read_cr3); \ -+ mov %rax,%rdi -+ -+#define SET_RDI_INTO_CR3 \ -+ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_write_cr3) -+ - #endif /* CONFIG_X86_32 */ - - #endif /* __ASSEMBLY__ */ -diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h -index 8e8b9a4..f07d725 100644 ---- a/arch/x86/include/asm/paravirt_types.h -+++ b/arch/x86/include/asm/paravirt_types.h -@@ -84,20 +84,20 @@ struct pv_init_ops { - */ - unsigned (*patch)(u8 type, u16 clobber, void *insnbuf, - unsigned long addr, unsigned len); --}; -+} __no_const; - - - struct pv_lazy_ops { - /* Set deferred update mode, used for batching operations. */ - void (*enter)(void); - void (*leave)(void); --}; -+} __no_const; - - struct pv_time_ops { - unsigned long long (*sched_clock)(void); - unsigned long long (*steal_clock)(int cpu); - unsigned long (*get_tsc_khz)(void); --}; -+} __no_const; - - struct pv_cpu_ops { - /* hooks for various privileged instructions */ -@@ -193,7 +193,7 @@ struct pv_cpu_ops { - - void (*start_context_switch)(struct task_struct *prev); - void (*end_context_switch)(struct task_struct *next); --}; -+} __no_const; - - struct pv_irq_ops { - /* -@@ -224,7 +224,7 @@ struct pv_apic_ops { - unsigned long start_eip, - unsigned long start_esp); - #endif --}; -+} __no_const; - - struct pv_mmu_ops { - unsigned long (*read_cr2)(void); -@@ -313,6 +313,7 @@ struct pv_mmu_ops { - struct paravirt_callee_save make_pud; - - void (*set_pgd)(pgd_t *pudp, pgd_t pgdval); -+ void (*set_pgd_batched)(pgd_t *pudp, pgd_t pgdval); - #endif /* PAGETABLE_LEVELS == 4 */ - #endif /* PAGETABLE_LEVELS >= 3 */ - -@@ -324,6 +325,12 @@ struct pv_mmu_ops { - an mfn. We can tell which is which from the index. */ - void (*set_fixmap)(unsigned /* enum fixed_addresses */ idx, - phys_addr_t phys, pgprot_t flags); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long (*pax_open_kernel)(void); -+ unsigned long (*pax_close_kernel)(void); -+#endif -+ - }; - - struct arch_spinlock; -@@ -334,7 +341,7 @@ struct pv_lock_ops { - void (*spin_lock_flags)(struct arch_spinlock *lock, unsigned long flags); - int (*spin_trylock)(struct arch_spinlock *lock); - void (*spin_unlock)(struct arch_spinlock *lock); --}; -+} __no_const; - - /* This contains all the paravirt structures: we get a convenient - * number for each function using the offset which we use to indicate -diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h -index b4389a4..7024269 100644 ---- a/arch/x86/include/asm/pgalloc.h -+++ b/arch/x86/include/asm/pgalloc.h -@@ -63,6 +63,13 @@ static inline void pmd_populate_kernel(struct mm_struct *mm, - pmd_t *pmd, pte_t *pte) - { - paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT); -+ set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE)); -+} -+ -+static inline void pmd_populate_user(struct mm_struct *mm, -+ pmd_t *pmd, pte_t *pte) -+{ -+ paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT); - set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE)); - } - -@@ -99,12 +106,22 @@ static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, - - #ifdef CONFIG_X86_PAE - extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd); -+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd) -+{ -+ pud_populate(mm, pudp, pmd); -+} - #else /* !CONFIG_X86_PAE */ - static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) - { - paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT); - set_pud(pud, __pud(_PAGE_TABLE | __pa(pmd))); - } -+ -+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) -+{ -+ paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT); -+ set_pud(pud, __pud(_KERNPG_TABLE | __pa(pmd))); -+} - #endif /* CONFIG_X86_PAE */ - - #if PAGETABLE_LEVELS > 3 -@@ -114,6 +131,12 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud) - set_pgd(pgd, __pgd(_PAGE_TABLE | __pa(pud))); - } - -+static inline void pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pud_t *pud) -+{ -+ paravirt_alloc_pud(mm, __pa(pud) >> PAGE_SHIFT); -+ set_pgd(pgd, __pgd(_KERNPG_TABLE | __pa(pud))); -+} -+ - static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) - { - return (pud_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT); -diff --git a/arch/x86/include/asm/pgtable-2level.h b/arch/x86/include/asm/pgtable-2level.h -index 98391db..8f6984e 100644 ---- a/arch/x86/include/asm/pgtable-2level.h -+++ b/arch/x86/include/asm/pgtable-2level.h -@@ -18,7 +18,9 @@ static inline void native_set_pte(pte_t *ptep , pte_t pte) - - static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) - { -+ pax_open_kernel(); - *pmdp = pmd; -+ pax_close_kernel(); - } - - static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte) -diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h -index effff47..bbb8295 100644 ---- a/arch/x86/include/asm/pgtable-3level.h -+++ b/arch/x86/include/asm/pgtable-3level.h -@@ -31,6 +31,56 @@ static inline void native_set_pte(pte_t *ptep, pte_t pte) - ptep->pte_low = pte.pte_low; - } - -+#define __HAVE_ARCH_READ_PMD_ATOMIC -+/* -+ * pte_offset_map_lock on 32bit PAE kernels was reading the pmd_t with -+ * a "*pmdp" dereference done by gcc. Problem is, in certain places -+ * where pte_offset_map_lock is called, concurrent page faults are -+ * allowed, if the mmap_sem is hold for reading. An example is mincore -+ * vs page faults vs MADV_DONTNEED. On the page fault side -+ * pmd_populate rightfully does a set_64bit, but if we're reading the -+ * pmd_t with a "*pmdp" on the mincore side, a SMP race can happen -+ * because gcc will not read the 64bit of the pmd atomically. To fix -+ * this all places running pmd_offset_map_lock() while holding the -+ * mmap_sem in read mode, shall read the pmdp pointer using this -+ * function to know if the pmd is null nor not, and in turn to know if -+ * they can run pmd_offset_map_lock or pmd_trans_huge or other pmd -+ * operations. -+ * -+ * Without THP if the mmap_sem is hold for reading, the -+ * pmd can only transition from null to not null while read_pmd_atomic runs. -+ * So there's no need of literally reading it atomically. -+ * -+ * With THP if the mmap_sem is hold for reading, the pmd can become -+ * THP or null or point to a pte (and in turn become "stable") at any -+ * time under read_pmd_atomic, so it's mandatory to read it atomically -+ * with cmpxchg8b. -+ */ -+#ifndef CONFIG_TRANSPARENT_HUGEPAGE -+static inline pmd_t read_pmd_atomic(pmd_t *pmdp) -+{ -+ pmdval_t ret; -+ u32 *tmp = (u32 *)pmdp; -+ -+ ret = (pmdval_t) (*tmp); -+ if (ret) { -+ /* -+ * If the low part is null, we must not read the high part -+ * or we can end up with a partial pmd. -+ */ -+ smp_rmb(); -+ ret |= ((pmdval_t)*(tmp + 1)) << 32; -+ } -+ -+ return __pmd(ret); -+} -+#else /* CONFIG_TRANSPARENT_HUGEPAGE */ -+static inline pmd_t read_pmd_atomic(pmd_t *pmdp) -+{ -+ return __pmd(atomic64_read((atomic64_t *)pmdp)); -+} -+#endif /* CONFIG_TRANSPARENT_HUGEPAGE */ -+ - static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte) - { - set_64bit((unsigned long long *)(ptep), native_pte_val(pte)); -@@ -38,12 +88,16 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte) - - static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) - { -+ pax_open_kernel(); - set_64bit((unsigned long long *)(pmdp), native_pmd_val(pmd)); -+ pax_close_kernel(); - } - - static inline void native_set_pud(pud_t *pudp, pud_t pud) - { -+ pax_open_kernel(); - set_64bit((unsigned long long *)(pudp), native_pud_val(pud)); -+ pax_close_kernel(); - } - - /* -diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h -index 49afb3f..91a8c63 100644 ---- a/arch/x86/include/asm/pgtable.h -+++ b/arch/x86/include/asm/pgtable.h -@@ -44,6 +44,7 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page); - - #ifndef __PAGETABLE_PUD_FOLDED - #define set_pgd(pgdp, pgd) native_set_pgd(pgdp, pgd) -+#define set_pgd_batched(pgdp, pgd) native_set_pgd_batched(pgdp, pgd) - #define pgd_clear(pgd) native_pgd_clear(pgd) - #endif - -@@ -81,12 +82,51 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page); - - #define arch_end_context_switch(prev) do {} while(0) - -+#define pax_open_kernel() native_pax_open_kernel() -+#define pax_close_kernel() native_pax_close_kernel() - #endif /* CONFIG_PARAVIRT */ - -+#define __HAVE_ARCH_PAX_OPEN_KERNEL -+#define __HAVE_ARCH_PAX_CLOSE_KERNEL -+ -+#ifdef CONFIG_PAX_KERNEXEC -+static inline unsigned long native_pax_open_kernel(void) -+{ -+ unsigned long cr0; -+ -+ preempt_disable(); -+ barrier(); -+ cr0 = read_cr0() ^ X86_CR0_WP; -+ BUG_ON(unlikely(cr0 & X86_CR0_WP)); -+ write_cr0(cr0); -+ return cr0 ^ X86_CR0_WP; -+} -+ -+static inline unsigned long native_pax_close_kernel(void) -+{ -+ unsigned long cr0; -+ -+ cr0 = read_cr0() ^ X86_CR0_WP; -+ BUG_ON(unlikely(!(cr0 & X86_CR0_WP))); -+ write_cr0(cr0); -+ barrier(); -+ preempt_enable_no_resched(); -+ return cr0 ^ X86_CR0_WP; -+} -+#else -+static inline unsigned long native_pax_open_kernel(void) { return 0; } -+static inline unsigned long native_pax_close_kernel(void) { return 0; } -+#endif -+ - /* - * The following only work if pte_present() is true. - * Undefined behaviour if not.. - */ -+static inline int pte_user(pte_t pte) -+{ -+ return pte_val(pte) & _PAGE_USER; -+} -+ - static inline int pte_dirty(pte_t pte) - { - return pte_flags(pte) & _PAGE_DIRTY; -@@ -196,9 +236,29 @@ static inline pte_t pte_wrprotect(pte_t pte) - return pte_clear_flags(pte, _PAGE_RW); - } - -+static inline pte_t pte_mkread(pte_t pte) -+{ -+ return __pte(pte_val(pte) | _PAGE_USER); -+} -+ - static inline pte_t pte_mkexec(pte_t pte) - { -- return pte_clear_flags(pte, _PAGE_NX); -+#ifdef CONFIG_X86_PAE -+ if (__supported_pte_mask & _PAGE_NX) -+ return pte_clear_flags(pte, _PAGE_NX); -+ else -+#endif -+ return pte_set_flags(pte, _PAGE_USER); -+} -+ -+static inline pte_t pte_exprotect(pte_t pte) -+{ -+#ifdef CONFIG_X86_PAE -+ if (__supported_pte_mask & _PAGE_NX) -+ return pte_set_flags(pte, _PAGE_NX); -+ else -+#endif -+ return pte_clear_flags(pte, _PAGE_USER); - } - - static inline pte_t pte_mkdirty(pte_t pte) -@@ -390,6 +450,15 @@ pte_t *populate_extra_pte(unsigned long vaddr); - #endif - - #ifndef __ASSEMBLY__ -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+extern pgd_t cpu_pgd[NR_CPUS][PTRS_PER_PGD]; -+static inline pgd_t *get_cpu_pgd(unsigned int cpu) -+{ -+ return cpu_pgd[cpu]; -+} -+#endif -+ - #include <linux/mm_types.h> - - static inline int pte_none(pte_t pte) -@@ -560,7 +629,7 @@ static inline pud_t *pud_offset(pgd_t *pgd, unsigned long address) - - static inline int pgd_bad(pgd_t pgd) - { -- return (pgd_flags(pgd) & ~_PAGE_USER) != _KERNPG_TABLE; -+ return (pgd_flags(pgd) & ~(_PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE; - } - - static inline int pgd_none(pgd_t pgd) -@@ -583,7 +652,12 @@ static inline int pgd_none(pgd_t pgd) - * pgd_offset() returns a (pgd_t *) - * pgd_index() is used get the offset into the pgd page's array of pgd_t's; - */ --#define pgd_offset(mm, address) ((mm)->pgd + pgd_index((address))) -+#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+#define pgd_offset_cpu(cpu, address) (get_cpu_pgd(cpu) + pgd_index(address)) -+#endif -+ - /* - * a shortcut which implies the use of the kernel's pgd, instead - * of a process's -@@ -594,6 +668,20 @@ static inline int pgd_none(pgd_t pgd) - #define KERNEL_PGD_BOUNDARY pgd_index(PAGE_OFFSET) - #define KERNEL_PGD_PTRS (PTRS_PER_PGD - KERNEL_PGD_BOUNDARY) - -+#ifdef CONFIG_X86_32 -+#define USER_PGD_PTRS KERNEL_PGD_BOUNDARY -+#else -+#define TASK_SIZE_MAX_SHIFT CONFIG_TASK_SIZE_MAX_SHIFT -+#define USER_PGD_PTRS (_AC(1,UL) << (TASK_SIZE_MAX_SHIFT - PGDIR_SHIFT)) -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+#define PAX_USER_SHADOW_BASE (_AC(1,UL) << TASK_SIZE_MAX_SHIFT) -+#else -+#define PAX_USER_SHADOW_BASE (_AC(0,UL)) -+#endif -+ -+#endif -+ - #ifndef __ASSEMBLY__ - - extern int direct_gbpages; -@@ -758,11 +846,23 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm, - * dst and src can be on the same page, but the range must not overlap, - * and must not cross a page boundary. - */ --static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count) -+static inline void clone_pgd_range(pgd_t *dst, const pgd_t *src, int count) - { -- memcpy(dst, src, count * sizeof(pgd_t)); -+ pax_open_kernel(); -+ while (count--) -+ *dst++ = *src++; -+ pax_close_kernel(); - } - -+#ifdef CONFIG_PAX_PER_CPU_PGD -+extern void __clone_user_pgds(pgd_t *dst, const pgd_t *src); -+#endif -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+extern void __shadow_user_pgds(pgd_t *dst, const pgd_t *src); -+#else -+static inline void __shadow_user_pgds(pgd_t *dst, const pgd_t *src) {} -+#endif - - #include <asm-generic/pgtable.h> - #endif /* __ASSEMBLY__ */ -diff --git a/arch/x86/include/asm/pgtable_32.h b/arch/x86/include/asm/pgtable_32.h -index 0c92113..34a77c6 100644 ---- a/arch/x86/include/asm/pgtable_32.h -+++ b/arch/x86/include/asm/pgtable_32.h -@@ -25,9 +25,6 @@ - struct mm_struct; - struct vm_area_struct; - --extern pgd_t swapper_pg_dir[1024]; --extern pgd_t initial_page_table[1024]; -- - static inline void pgtable_cache_init(void) { } - static inline void check_pgt_cache(void) { } - void paging_init(void); -@@ -48,6 +45,12 @@ extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t); - # include <asm/pgtable-2level.h> - #endif - -+extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; -+extern pgd_t initial_page_table[PTRS_PER_PGD]; -+#ifdef CONFIG_X86_PAE -+extern pmd_t swapper_pm_dir[PTRS_PER_PGD][PTRS_PER_PMD]; -+#endif -+ - #if defined(CONFIG_HIGHPTE) - #define pte_offset_map(dir, address) \ - ((pte_t *)kmap_atomic(pmd_page(*(dir))) + \ -@@ -62,7 +65,9 @@ extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t); - /* Clear a kernel PTE and flush it from the TLB */ - #define kpte_clear_flush(ptep, vaddr) \ - do { \ -+ pax_open_kernel(); \ - pte_clear(&init_mm, (vaddr), (ptep)); \ -+ pax_close_kernel(); \ - __flush_tlb_one((vaddr)); \ - } while (0) - -@@ -74,6 +79,9 @@ do { \ - - #endif /* !__ASSEMBLY__ */ - -+#define HAVE_ARCH_UNMAPPED_AREA -+#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN -+ - /* - * kern_addr_valid() is (1) for FLATMEM and (0) for - * SPARSEMEM and DISCONTIGMEM -diff --git a/arch/x86/include/asm/pgtable_32_types.h b/arch/x86/include/asm/pgtable_32_types.h -index ed5903b..c7fe163 100644 ---- a/arch/x86/include/asm/pgtable_32_types.h -+++ b/arch/x86/include/asm/pgtable_32_types.h -@@ -8,7 +8,7 @@ - */ - #ifdef CONFIG_X86_PAE - # include <asm/pgtable-3level_types.h> --# define PMD_SIZE (1UL << PMD_SHIFT) -+# define PMD_SIZE (_AC(1, UL) << PMD_SHIFT) - # define PMD_MASK (~(PMD_SIZE - 1)) - #else - # include <asm/pgtable-2level_types.h> -@@ -46,6 +46,19 @@ extern bool __vmalloc_start_set; /* set once high_memory is set */ - # define VMALLOC_END (FIXADDR_START - 2 * PAGE_SIZE) - #endif - -+#ifdef CONFIG_PAX_KERNEXEC -+#ifndef __ASSEMBLY__ -+extern unsigned char MODULES_EXEC_VADDR[]; -+extern unsigned char MODULES_EXEC_END[]; -+#endif -+#include <asm/boot.h> -+#define ktla_ktva(addr) (addr + LOAD_PHYSICAL_ADDR + PAGE_OFFSET) -+#define ktva_ktla(addr) (addr - LOAD_PHYSICAL_ADDR - PAGE_OFFSET) -+#else -+#define ktla_ktva(addr) (addr) -+#define ktva_ktla(addr) (addr) -+#endif -+ - #define MODULES_VADDR VMALLOC_START - #define MODULES_END VMALLOC_END - #define MODULES_LEN (MODULES_VADDR - MODULES_END) -diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h -index 975f709..9f779c9 100644 ---- a/arch/x86/include/asm/pgtable_64.h -+++ b/arch/x86/include/asm/pgtable_64.h -@@ -16,10 +16,14 @@ - - extern pud_t level3_kernel_pgt[512]; - extern pud_t level3_ident_pgt[512]; -+extern pud_t level3_vmalloc_start_pgt[512]; -+extern pud_t level3_vmalloc_end_pgt[512]; -+extern pud_t level3_vmemmap_pgt[512]; -+extern pud_t level2_vmemmap_pgt[512]; - extern pmd_t level2_kernel_pgt[512]; - extern pmd_t level2_fixmap_pgt[512]; --extern pmd_t level2_ident_pgt[512]; --extern pgd_t init_level4_pgt[]; -+extern pmd_t level2_ident_pgt[512*2]; -+extern pgd_t init_level4_pgt[512]; - - #define swapper_pg_dir init_level4_pgt - -@@ -61,7 +65,9 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte) - - static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) - { -+ pax_open_kernel(); - *pmdp = pmd; -+ pax_close_kernel(); - } - - static inline void native_pmd_clear(pmd_t *pmd) -@@ -97,7 +103,9 @@ static inline pmd_t native_pmdp_get_and_clear(pmd_t *xp) - - static inline void native_set_pud(pud_t *pudp, pud_t pud) - { -+ pax_open_kernel(); - *pudp = pud; -+ pax_close_kernel(); - } - - static inline void native_pud_clear(pud_t *pud) -@@ -107,6 +115,13 @@ static inline void native_pud_clear(pud_t *pud) - - static inline void native_set_pgd(pgd_t *pgdp, pgd_t pgd) - { -+ pax_open_kernel(); -+ *pgdp = pgd; -+ pax_close_kernel(); -+} -+ -+static inline void native_set_pgd_batched(pgd_t *pgdp, pgd_t pgd) -+{ - *pgdp = pgd; - } - -diff --git a/arch/x86/include/asm/pgtable_64_types.h b/arch/x86/include/asm/pgtable_64_types.h -index 766ea16..5b96cb3 100644 ---- a/arch/x86/include/asm/pgtable_64_types.h -+++ b/arch/x86/include/asm/pgtable_64_types.h -@@ -59,5 +59,10 @@ typedef struct { pteval_t pte; } pte_t; - #define MODULES_VADDR _AC(0xffffffffa0000000, UL) - #define MODULES_END _AC(0xffffffffff000000, UL) - #define MODULES_LEN (MODULES_END - MODULES_VADDR) -+#define MODULES_EXEC_VADDR MODULES_VADDR -+#define MODULES_EXEC_END MODULES_END -+ -+#define ktla_ktva(addr) (addr) -+#define ktva_ktla(addr) (addr) - - #endif /* _ASM_X86_PGTABLE_64_DEFS_H */ -diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h -index 013286a..8b42f4f 100644 ---- a/arch/x86/include/asm/pgtable_types.h -+++ b/arch/x86/include/asm/pgtable_types.h -@@ -16,13 +16,12 @@ - #define _PAGE_BIT_PSE 7 /* 4 MB (or 2MB) page */ - #define _PAGE_BIT_PAT 7 /* on 4KB pages */ - #define _PAGE_BIT_GLOBAL 8 /* Global TLB entry PPro+ */ --#define _PAGE_BIT_UNUSED1 9 /* available for programmer */ -+#define _PAGE_BIT_SPECIAL 9 /* special mappings, no associated struct page */ - #define _PAGE_BIT_IOMAP 10 /* flag used to indicate IO mapping */ - #define _PAGE_BIT_HIDDEN 11 /* hidden by kmemcheck */ - #define _PAGE_BIT_PAT_LARGE 12 /* On 2MB or 1GB pages */ --#define _PAGE_BIT_SPECIAL _PAGE_BIT_UNUSED1 --#define _PAGE_BIT_CPA_TEST _PAGE_BIT_UNUSED1 --#define _PAGE_BIT_SPLITTING _PAGE_BIT_UNUSED1 /* only valid on a PSE pmd */ -+#define _PAGE_BIT_CPA_TEST _PAGE_BIT_SPECIAL -+#define _PAGE_BIT_SPLITTING _PAGE_BIT_SPECIAL /* only valid on a PSE pmd */ - #define _PAGE_BIT_NX 63 /* No execute: only valid after cpuid check */ - - /* If _PAGE_BIT_PRESENT is clear, we use these: */ -@@ -40,7 +39,6 @@ - #define _PAGE_DIRTY (_AT(pteval_t, 1) << _PAGE_BIT_DIRTY) - #define _PAGE_PSE (_AT(pteval_t, 1) << _PAGE_BIT_PSE) - #define _PAGE_GLOBAL (_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL) --#define _PAGE_UNUSED1 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1) - #define _PAGE_IOMAP (_AT(pteval_t, 1) << _PAGE_BIT_IOMAP) - #define _PAGE_PAT (_AT(pteval_t, 1) << _PAGE_BIT_PAT) - #define _PAGE_PAT_LARGE (_AT(pteval_t, 1) << _PAGE_BIT_PAT_LARGE) -@@ -57,8 +55,10 @@ - - #if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) - #define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_NX) --#else -+#elif defined(CONFIG_KMEMCHECK) - #define _PAGE_NX (_AT(pteval_t, 0)) -+#else -+#define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_HIDDEN) - #endif - - #define _PAGE_FILE (_AT(pteval_t, 1) << _PAGE_BIT_FILE) -@@ -96,6 +96,9 @@ - #define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_ACCESSED) - -+#define PAGE_READONLY_NOEXEC PAGE_READONLY -+#define PAGE_SHARED_NOEXEC PAGE_SHARED -+ - #define __PAGE_KERNEL_EXEC \ - (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL) - #define __PAGE_KERNEL (__PAGE_KERNEL_EXEC | _PAGE_NX) -@@ -106,7 +109,7 @@ - #define __PAGE_KERNEL_WC (__PAGE_KERNEL | _PAGE_CACHE_WC) - #define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT) - #define __PAGE_KERNEL_UC_MINUS (__PAGE_KERNEL | _PAGE_PCD) --#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RX | _PAGE_USER) -+#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RO | _PAGE_USER) - #define __PAGE_KERNEL_VVAR (__PAGE_KERNEL_RO | _PAGE_USER) - #define __PAGE_KERNEL_VVAR_NOCACHE (__PAGE_KERNEL_VVAR | _PAGE_PCD | _PAGE_PWT) - #define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE) -@@ -168,8 +171,8 @@ - * bits are combined, this will alow user to access the high address mapped - * VDSO in the presence of CONFIG_COMPAT_VDSO - */ --#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */ --#define PDE_IDENT_ATTR 0x067 /* PRESENT+RW+USER+DIRTY+ACCESSED */ -+#define PTE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */ -+#define PDE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */ - #define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */ - #endif - -@@ -207,7 +210,17 @@ static inline pgdval_t pgd_flags(pgd_t pgd) - { - return native_pgd_val(pgd) & PTE_FLAGS_MASK; - } -+#endif - -+#if PAGETABLE_LEVELS == 3 -+#include <asm-generic/pgtable-nopud.h> -+#endif -+ -+#if PAGETABLE_LEVELS == 2 -+#include <asm-generic/pgtable-nopmd.h> -+#endif -+ -+#ifndef __ASSEMBLY__ - #if PAGETABLE_LEVELS > 3 - typedef struct { pudval_t pud; } pud_t; - -@@ -221,8 +234,6 @@ static inline pudval_t native_pud_val(pud_t pud) - return pud.pud; - } - #else --#include <asm-generic/pgtable-nopud.h> -- - static inline pudval_t native_pud_val(pud_t pud) - { - return native_pgd_val(pud.pgd); -@@ -242,8 +253,6 @@ static inline pmdval_t native_pmd_val(pmd_t pmd) - return pmd.pmd; - } - #else --#include <asm-generic/pgtable-nopmd.h> -- - static inline pmdval_t native_pmd_val(pmd_t pmd) - { - return native_pgd_val(pmd.pud.pgd); -@@ -283,7 +292,6 @@ typedef struct page *pgtable_t; - - extern pteval_t __supported_pte_mask; - extern void set_nx(void); --extern int nx_enabled; - - #define pgprot_writecombine pgprot_writecombine - extern pgprot_t pgprot_writecombine(pgprot_t prot); -diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h -index 4fa7dcc..764e33a 100644 ---- a/arch/x86/include/asm/processor.h -+++ b/arch/x86/include/asm/processor.h -@@ -276,7 +276,7 @@ struct tss_struct { - - } ____cacheline_aligned; - --DECLARE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss); -+extern struct tss_struct init_tss[NR_CPUS]; - - /* - * Save the original ist values for checking stack pointers during debugging -@@ -807,11 +807,18 @@ static inline void spin_lock_prefetch(const void *x) - */ - #define TASK_SIZE PAGE_OFFSET - #define TASK_SIZE_MAX TASK_SIZE -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+#define SEGMEXEC_TASK_SIZE (TASK_SIZE / 2) -+#define STACK_TOP ((current->mm->pax_flags & MF_PAX_SEGMEXEC)?SEGMEXEC_TASK_SIZE:TASK_SIZE) -+#else - #define STACK_TOP TASK_SIZE --#define STACK_TOP_MAX STACK_TOP -+#endif -+ -+#define STACK_TOP_MAX TASK_SIZE - - #define INIT_THREAD { \ -- .sp0 = sizeof(init_stack) + (long)&init_stack, \ -+ .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \ - .vm86_info = NULL, \ - .sysenter_cs = __KERNEL_CS, \ - .io_bitmap_ptr = NULL, \ -@@ -825,7 +832,7 @@ static inline void spin_lock_prefetch(const void *x) - */ - #define INIT_TSS { \ - .x86_tss = { \ -- .sp0 = sizeof(init_stack) + (long)&init_stack, \ -+ .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \ - .ss0 = __KERNEL_DS, \ - .ss1 = __KERNEL_CS, \ - .io_bitmap_base = INVALID_IO_BITMAP_OFFSET, \ -@@ -836,11 +843,7 @@ static inline void spin_lock_prefetch(const void *x) - extern unsigned long thread_saved_pc(struct task_struct *tsk); - - #define THREAD_SIZE_LONGS (THREAD_SIZE/sizeof(unsigned long)) --#define KSTK_TOP(info) \ --({ \ -- unsigned long *__ptr = (unsigned long *)(info); \ -- (unsigned long)(&__ptr[THREAD_SIZE_LONGS]); \ --}) -+#define KSTK_TOP(info) ((container_of(info, struct task_struct, tinfo))->thread.sp0) - - /* - * The below -8 is to reserve 8 bytes on top of the ring0 stack. -@@ -855,7 +858,7 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk); - #define task_pt_regs(task) \ - ({ \ - struct pt_regs *__regs__; \ -- __regs__ = (struct pt_regs *)(KSTK_TOP(task_stack_page(task))-8); \ -+ __regs__ = (struct pt_regs *)((task)->thread.sp0); \ - __regs__ - 1; \ - }) - -@@ -865,13 +868,13 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk); - /* - * User space process size. 47bits minus one guard page. - */ --#define TASK_SIZE_MAX ((1UL << 47) - PAGE_SIZE) -+#define TASK_SIZE_MAX ((1UL << TASK_SIZE_MAX_SHIFT) - PAGE_SIZE) - - /* This decides where the kernel will search for a free chunk of vm - * space during mmap's. - */ - #define IA32_PAGE_OFFSET ((current->personality & ADDR_LIMIT_3GB) ? \ -- 0xc0000000 : 0xFFFFe000) -+ 0xc0000000 : 0xFFFFf000) - - #define TASK_SIZE (test_thread_flag(TIF_ADDR32) ? \ - IA32_PAGE_OFFSET : TASK_SIZE_MAX) -@@ -882,11 +885,11 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk); - #define STACK_TOP_MAX TASK_SIZE_MAX - - #define INIT_THREAD { \ -- .sp0 = (unsigned long)&init_stack + sizeof(init_stack) \ -+ .sp0 = (unsigned long)&init_stack + sizeof(init_stack) - 16 \ - } - - #define INIT_TSS { \ -- .x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \ -+ .x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) - 16 \ - } - - /* -@@ -914,6 +917,10 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_ip, - */ - #define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3)) - -+#ifdef CONFIG_PAX_SEGMEXEC -+#define SEGMEXEC_TASK_UNMAPPED_BASE (PAGE_ALIGN(SEGMEXEC_TASK_SIZE / 3)) -+#endif -+ - #define KSTK_EIP(task) (task_pt_regs(task)->ip) - - /* Get/set a process' ability to use the timestamp counter instruction */ -@@ -976,12 +983,12 @@ extern bool cpu_has_amd_erratum(const int *); - - void cpu_idle_wait(void); - --extern unsigned long arch_align_stack(unsigned long sp); -+#define arch_align_stack(x) ((x) & ~0xfUL) - extern void free_init_pages(char *what, unsigned long begin, unsigned long end); - - void default_idle(void); - bool set_pm_idle_to_default(void); - --void stop_this_cpu(void *dummy); -+void stop_this_cpu(void *dummy) __noreturn; - - #endif /* _ASM_X86_PROCESSOR_H */ -diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h -index dcfde52..dbfea06 100644 ---- a/arch/x86/include/asm/ptrace.h -+++ b/arch/x86/include/asm/ptrace.h -@@ -155,28 +155,29 @@ static inline unsigned long regs_return_value(struct pt_regs *regs) - } - - /* -- * user_mode_vm(regs) determines whether a register set came from user mode. -+ * user_mode(regs) determines whether a register set came from user mode. - * This is true if V8086 mode was enabled OR if the register set was from - * protected mode with RPL-3 CS value. This tricky test checks that with - * one comparison. Many places in the kernel can bypass this full check -- * if they have already ruled out V8086 mode, so user_mode(regs) can be used. -+ * if they have already ruled out V8086 mode, so user_mode_novm(regs) can -+ * be used. - */ --static inline int user_mode(struct pt_regs *regs) -+static inline int user_mode_novm(struct pt_regs *regs) - { - #ifdef CONFIG_X86_32 - return (regs->cs & SEGMENT_RPL_MASK) == USER_RPL; - #else -- return !!(regs->cs & 3); -+ return !!(regs->cs & SEGMENT_RPL_MASK); - #endif - } - --static inline int user_mode_vm(struct pt_regs *regs) -+static inline int user_mode(struct pt_regs *regs) - { - #ifdef CONFIG_X86_32 - return ((regs->cs & SEGMENT_RPL_MASK) | (regs->flags & X86_VM_MASK)) >= - USER_RPL; - #else -- return user_mode(regs); -+ return user_mode_novm(regs); - #endif - } - -@@ -192,15 +193,16 @@ static inline int v8086_mode(struct pt_regs *regs) - #ifdef CONFIG_X86_64 - static inline bool user_64bit_mode(struct pt_regs *regs) - { -+ unsigned long cs = regs->cs & 0xffff; - #ifndef CONFIG_PARAVIRT - /* - * On non-paravirt systems, this is the only long mode CPL 3 - * selector. We do not allow long mode selectors in the LDT. - */ -- return regs->cs == __USER_CS; -+ return cs == __USER_CS; - #else - /* Headers are too twisted for this to go in paravirt.h. */ -- return regs->cs == __USER_CS || regs->cs == pv_info.extra_user_64bit_cs; -+ return cs == __USER_CS || cs == pv_info.extra_user_64bit_cs; - #endif - } - #endif -diff --git a/arch/x86/include/asm/reboot.h b/arch/x86/include/asm/reboot.h -index 92f29706..a79cbbb 100644 ---- a/arch/x86/include/asm/reboot.h -+++ b/arch/x86/include/asm/reboot.h -@@ -6,19 +6,19 @@ - struct pt_regs; - - struct machine_ops { -- void (*restart)(char *cmd); -- void (*halt)(void); -- void (*power_off)(void); -+ void (* __noreturn restart)(char *cmd); -+ void (* __noreturn halt)(void); -+ void (* __noreturn power_off)(void); - void (*shutdown)(void); - void (*crash_shutdown)(struct pt_regs *); -- void (*emergency_restart)(void); --}; -+ void (* __noreturn emergency_restart)(void); -+} __no_const; - - extern struct machine_ops machine_ops; - - void native_machine_crash_shutdown(struct pt_regs *regs); - void native_machine_shutdown(void); --void machine_real_restart(unsigned int type); -+void machine_real_restart(unsigned int type) __noreturn; - /* These must match dispatch_table in reboot_32.S */ - #define MRR_BIOS 0 - #define MRR_APM 1 -diff --git a/arch/x86/include/asm/rwsem.h b/arch/x86/include/asm/rwsem.h -index 2dbe4a7..ce1db00 100644 ---- a/arch/x86/include/asm/rwsem.h -+++ b/arch/x86/include/asm/rwsem.h -@@ -64,6 +64,14 @@ static inline void __down_read(struct rw_semaphore *sem) - { - asm volatile("# beginning down_read\n\t" - LOCK_PREFIX _ASM_INC "(%1)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX _ASM_DEC "(%1)\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - /* adds 0x00000001 */ - " jns 1f\n" - " call call_rwsem_down_read_failed\n" -@@ -85,6 +93,14 @@ static inline int __down_read_trylock(struct rw_semaphore *sem) - "1:\n\t" - " mov %1,%2\n\t" - " add %3,%2\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "sub %3,%2\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - " jle 2f\n\t" - LOCK_PREFIX " cmpxchg %2,%0\n\t" - " jnz 1b\n\t" -@@ -104,6 +120,14 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass) - long tmp; - asm volatile("# beginning down_write\n\t" - LOCK_PREFIX " xadd %1,(%2)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "mov %1,(%2)\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - /* adds 0xffff0001, returns the old value */ - " test %1,%1\n\t" - /* was the count 0 before? */ -@@ -141,6 +165,14 @@ static inline void __up_read(struct rw_semaphore *sem) - long tmp; - asm volatile("# beginning __up_read\n\t" - LOCK_PREFIX " xadd %1,(%2)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "mov %1,(%2)\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - /* subtracts 1, returns the old value */ - " jns 1f\n\t" - " call call_rwsem_wake\n" /* expects old value in %edx */ -@@ -159,6 +191,14 @@ static inline void __up_write(struct rw_semaphore *sem) - long tmp; - asm volatile("# beginning __up_write\n\t" - LOCK_PREFIX " xadd %1,(%2)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "mov %1,(%2)\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - /* subtracts 0xffff0001, returns the old value */ - " jns 1f\n\t" - " call call_rwsem_wake\n" /* expects old value in %edx */ -@@ -176,6 +216,14 @@ static inline void __downgrade_write(struct rw_semaphore *sem) - { - asm volatile("# beginning __downgrade_write\n\t" - LOCK_PREFIX _ASM_ADD "%2,(%1)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX _ASM_SUB "%2,(%1)\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - /* - * transitions 0xZZZZ0001 -> 0xYYYY0001 (i386) - * 0xZZZZZZZZ00000001 -> 0xYYYYYYYY00000001 (x86_64) -@@ -194,7 +242,15 @@ static inline void __downgrade_write(struct rw_semaphore *sem) - */ - static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem) - { -- asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0" -+ asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX _ASM_SUB "%1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+m" (sem->count) - : "er" (delta)); - } -@@ -204,7 +260,7 @@ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem) - */ - static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem) - { -- return delta + xadd(&sem->count, delta); -+ return delta + xadd_check_overflow(&sem->count, delta); - } - - #endif /* __KERNEL__ */ -diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h -index 1654662..5af4157 100644 ---- a/arch/x86/include/asm/segment.h -+++ b/arch/x86/include/asm/segment.h -@@ -64,10 +64,15 @@ - * 26 - ESPFIX small SS - * 27 - per-cpu [ offset to per-cpu data area ] - * 28 - stack_canary-20 [ for stack protector ] -- * 29 - unused -- * 30 - unused -+ * 29 - PCI BIOS CS -+ * 30 - PCI BIOS DS - * 31 - TSS for double fault handler - */ -+#define GDT_ENTRY_KERNEXEC_EFI_CS (1) -+#define GDT_ENTRY_KERNEXEC_EFI_DS (2) -+#define __KERNEXEC_EFI_CS (GDT_ENTRY_KERNEXEC_EFI_CS*8) -+#define __KERNEXEC_EFI_DS (GDT_ENTRY_KERNEXEC_EFI_DS*8) -+ - #define GDT_ENTRY_TLS_MIN 6 - #define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1) - -@@ -79,6 +84,8 @@ - - #define GDT_ENTRY_KERNEL_CS (GDT_ENTRY_KERNEL_BASE+0) - -+#define GDT_ENTRY_KERNEXEC_KERNEL_CS (4) -+ - #define GDT_ENTRY_KERNEL_DS (GDT_ENTRY_KERNEL_BASE+1) - - #define GDT_ENTRY_TSS (GDT_ENTRY_KERNEL_BASE+4) -@@ -104,6 +111,12 @@ - #define __KERNEL_STACK_CANARY 0 - #endif - -+#define GDT_ENTRY_PCIBIOS_CS (GDT_ENTRY_KERNEL_BASE+17) -+#define __PCIBIOS_CS (GDT_ENTRY_PCIBIOS_CS * 8) -+ -+#define GDT_ENTRY_PCIBIOS_DS (GDT_ENTRY_KERNEL_BASE+18) -+#define __PCIBIOS_DS (GDT_ENTRY_PCIBIOS_DS * 8) -+ - #define GDT_ENTRY_DOUBLEFAULT_TSS 31 - - /* -@@ -141,7 +154,7 @@ - */ - - /* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */ --#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8) -+#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xFFFCU) == PNP_CS32 || ((x) & 0xFFFCU) == PNP_CS16) - - - #else -@@ -165,6 +178,8 @@ - #define __USER32_CS (GDT_ENTRY_DEFAULT_USER32_CS*8+3) - #define __USER32_DS __USER_DS - -+#define GDT_ENTRY_KERNEXEC_KERNEL_CS 7 -+ - #define GDT_ENTRY_TSS 8 /* needs two entries */ - #define GDT_ENTRY_LDT 10 /* needs two entries */ - #define GDT_ENTRY_TLS_MIN 12 -@@ -185,6 +200,7 @@ - #endif - - #define __KERNEL_CS (GDT_ENTRY_KERNEL_CS*8) -+#define __KERNEXEC_KERNEL_CS (GDT_ENTRY_KERNEXEC_KERNEL_CS*8) - #define __KERNEL_DS (GDT_ENTRY_KERNEL_DS*8) - #define __USER_DS (GDT_ENTRY_DEFAULT_USER_DS*8+3) - #define __USER_CS (GDT_ENTRY_DEFAULT_USER_CS*8+3) -@@ -263,7 +279,7 @@ static inline unsigned long get_limit(unsigned long segment) - { - unsigned long __limit; - asm("lsll %1,%0" : "=r" (__limit) : "r" (segment)); -- return __limit + 1; -+ return __limit; - } - - #endif /* !__ASSEMBLY__ */ -diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h -index 0434c40..1714bf0 100644 ---- a/arch/x86/include/asm/smp.h -+++ b/arch/x86/include/asm/smp.h -@@ -36,7 +36,7 @@ DECLARE_PER_CPU(cpumask_var_t, cpu_core_map); - /* cpus sharing the last level cache: */ - DECLARE_PER_CPU(cpumask_var_t, cpu_llc_shared_map); - DECLARE_PER_CPU(u16, cpu_llc_id); --DECLARE_PER_CPU(int, cpu_number); -+DECLARE_PER_CPU(unsigned int, cpu_number); - - static inline struct cpumask *cpu_sibling_mask(int cpu) - { -@@ -77,7 +77,7 @@ struct smp_ops { - - void (*send_call_func_ipi)(const struct cpumask *mask); - void (*send_call_func_single_ipi)(int cpu); --}; -+} __no_const; - - /* Globals due to paravirt */ - extern void set_cpu_sibling_map(int cpu); -@@ -192,14 +192,8 @@ extern unsigned disabled_cpus __cpuinitdata; - extern int safe_smp_processor_id(void); - - #elif defined(CONFIG_X86_64_SMP) --#define raw_smp_processor_id() (percpu_read(cpu_number)) -- --#define stack_smp_processor_id() \ --({ \ -- struct thread_info *ti; \ -- __asm__("andq %%rsp,%0; ":"=r" (ti) : "0" (CURRENT_MASK)); \ -- ti->cpu; \ --}) -+#define raw_smp_processor_id() (percpu_read(cpu_number)) -+#define stack_smp_processor_id() raw_smp_processor_id() - #define safe_smp_processor_id() smp_processor_id() - - #endif -diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h -index 76bfa2c..12d3fe7 100644 ---- a/arch/x86/include/asm/spinlock.h -+++ b/arch/x86/include/asm/spinlock.h -@@ -175,6 +175,14 @@ static inline int arch_write_can_lock(arch_rwlock_t *lock) - static inline void arch_read_lock(arch_rwlock_t *rw) - { - asm volatile(LOCK_PREFIX READ_LOCK_SIZE(dec) " (%0)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX READ_LOCK_SIZE(inc) " (%0)\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - "jns 1f\n" - "call __read_lock_failed\n\t" - "1:\n" -@@ -184,6 +192,14 @@ static inline void arch_read_lock(arch_rwlock_t *rw) - static inline void arch_write_lock(arch_rwlock_t *rw) - { - asm volatile(LOCK_PREFIX WRITE_LOCK_SUB(%1) "(%0)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX WRITE_LOCK_ADD(%1) "(%0)\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - "jz 1f\n" - "call __write_lock_failed\n\t" - "1:\n" -@@ -213,13 +229,29 @@ static inline int arch_write_trylock(arch_rwlock_t *lock) - - static inline void arch_read_unlock(arch_rwlock_t *rw) - { -- asm volatile(LOCK_PREFIX READ_LOCK_SIZE(inc) " %0" -+ asm volatile(LOCK_PREFIX READ_LOCK_SIZE(inc) " %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX READ_LOCK_SIZE(dec) " %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - :"+m" (rw->lock) : : "memory"); - } - - static inline void arch_write_unlock(arch_rwlock_t *rw) - { -- asm volatile(LOCK_PREFIX WRITE_LOCK_ADD(%1) "%0" -+ asm volatile(LOCK_PREFIX WRITE_LOCK_ADD(%1) "%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX WRITE_LOCK_SUB(%1) "%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+m" (rw->write) : "i" (RW_LOCK_BIAS) : "memory"); - } - -diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h -index b5d9533..41655fa 100644 ---- a/arch/x86/include/asm/stackprotector.h -+++ b/arch/x86/include/asm/stackprotector.h -@@ -47,7 +47,7 @@ - * head_32 for boot CPU and setup_per_cpu_areas() for others. - */ - #define GDT_STACK_CANARY_INIT \ -- [GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x18), -+ [GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x17), - - /* - * Initialize the stackprotector canary value. -@@ -112,7 +112,7 @@ static inline void setup_stack_canary_segment(int cpu) - - static inline void load_stack_canary_segment(void) - { --#ifdef CONFIG_X86_32 -+#if defined(CONFIG_X86_32) && !defined(CONFIG_PAX_MEMORY_UDEREF) - asm volatile ("mov %0, %%gs" : : "r" (0)); - #endif - } -diff --git a/arch/x86/include/asm/stacktrace.h b/arch/x86/include/asm/stacktrace.h -index 70bbe39..4ae2bd4 100644 ---- a/arch/x86/include/asm/stacktrace.h -+++ b/arch/x86/include/asm/stacktrace.h -@@ -11,28 +11,20 @@ - - extern int kstack_depth_to_print; - --struct thread_info; -+struct task_struct; - struct stacktrace_ops; - --typedef unsigned long (*walk_stack_t)(struct thread_info *tinfo, -- unsigned long *stack, -- unsigned long bp, -- const struct stacktrace_ops *ops, -- void *data, -- unsigned long *end, -- int *graph); -+typedef unsigned long walk_stack_t(struct task_struct *task, -+ void *stack_start, -+ unsigned long *stack, -+ unsigned long bp, -+ const struct stacktrace_ops *ops, -+ void *data, -+ unsigned long *end, -+ int *graph); - --extern unsigned long --print_context_stack(struct thread_info *tinfo, -- unsigned long *stack, unsigned long bp, -- const struct stacktrace_ops *ops, void *data, -- unsigned long *end, int *graph); -- --extern unsigned long --print_context_stack_bp(struct thread_info *tinfo, -- unsigned long *stack, unsigned long bp, -- const struct stacktrace_ops *ops, void *data, -- unsigned long *end, int *graph); -+extern walk_stack_t print_context_stack; -+extern walk_stack_t print_context_stack_bp; - - /* Generic stack tracer with callbacks */ - -@@ -40,7 +32,7 @@ struct stacktrace_ops { - void (*address)(void *data, unsigned long address, int reliable); - /* On negative return stop dumping */ - int (*stack)(void *data, char *name); -- walk_stack_t walk_stack; -+ walk_stack_t *walk_stack; - }; - - void dump_trace(struct task_struct *tsk, struct pt_regs *regs, -diff --git a/arch/x86/include/asm/switch_to.h b/arch/x86/include/asm/switch_to.h -index 4ec45b3..a4f0a8a 100644 ---- a/arch/x86/include/asm/switch_to.h -+++ b/arch/x86/include/asm/switch_to.h -@@ -108,7 +108,7 @@ do { \ - "call __switch_to\n\t" \ - "movq "__percpu_arg([current_task])",%%rsi\n\t" \ - __switch_canary \ -- "movq %P[thread_info](%%rsi),%%r8\n\t" \ -+ "movq "__percpu_arg([thread_info])",%%r8\n\t" \ - "movq %%rax,%%rdi\n\t" \ - "testl %[_tif_fork],%P[ti_flags](%%r8)\n\t" \ - "jnz ret_from_fork\n\t" \ -@@ -119,7 +119,7 @@ do { \ - [threadrsp] "i" (offsetof(struct task_struct, thread.sp)), \ - [ti_flags] "i" (offsetof(struct thread_info, flags)), \ - [_tif_fork] "i" (_TIF_FORK), \ -- [thread_info] "i" (offsetof(struct task_struct, stack)), \ -+ [thread_info] "m" (current_tinfo), \ - [current_task] "m" (current_task) \ - __switch_canary_iparam \ - : "memory", "cc" __EXTRA_CLOBBER) -diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h -index 3fda9db4..4ca1c61 100644 ---- a/arch/x86/include/asm/sys_ia32.h -+++ b/arch/x86/include/asm/sys_ia32.h -@@ -40,7 +40,7 @@ asmlinkage long sys32_sigaction(int, struct old_sigaction32 __user *, - struct old_sigaction32 __user *); - asmlinkage long sys32_alarm(unsigned int); - --asmlinkage long sys32_waitpid(compat_pid_t, unsigned int *, int); -+asmlinkage long sys32_waitpid(compat_pid_t, unsigned int __user *, int); - asmlinkage long sys32_sysfs(int, u32, u32); - - asmlinkage long sys32_sched_rr_get_interval(compat_pid_t, -diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h -index ad6df8c..5e0cf6e 100644 ---- a/arch/x86/include/asm/thread_info.h -+++ b/arch/x86/include/asm/thread_info.h -@@ -10,6 +10,7 @@ - #include <linux/compiler.h> - #include <asm/page.h> - #include <asm/types.h> -+#include <asm/percpu.h> - - /* - * low level task data that entry.S needs immediate access to -@@ -24,7 +25,6 @@ struct exec_domain; - #include <linux/atomic.h> - - struct thread_info { -- struct task_struct *task; /* main task structure */ - struct exec_domain *exec_domain; /* execution domain */ - __u32 flags; /* low level flags */ - __u32 status; /* thread synchronous flags */ -@@ -34,19 +34,13 @@ struct thread_info { - mm_segment_t addr_limit; - struct restart_block restart_block; - void __user *sysenter_return; --#ifdef CONFIG_X86_32 -- unsigned long previous_esp; /* ESP of the previous stack in -- case of nested (IRQ) stacks -- */ -- __u8 supervisor_stack[0]; --#endif -+ unsigned long lowest_stack; - unsigned int sig_on_uaccess_error:1; - unsigned int uaccess_err:1; /* uaccess failed */ - }; - --#define INIT_THREAD_INFO(tsk) \ -+#define INIT_THREAD_INFO \ - { \ -- .task = &tsk, \ - .exec_domain = &default_exec_domain, \ - .flags = 0, \ - .cpu = 0, \ -@@ -57,7 +51,7 @@ struct thread_info { - }, \ - } - --#define init_thread_info (init_thread_union.thread_info) -+#define init_thread_info (init_thread_union.stack) - #define init_stack (init_thread_union.stack) - - #else /* !__ASSEMBLY__ */ -@@ -97,6 +91,7 @@ struct thread_info { - #define TIF_SYSCALL_TRACEPOINT 28 /* syscall tracepoint instrumentation */ - #define TIF_ADDR32 29 /* 32-bit address space on 64 bits */ - #define TIF_X32 30 /* 32-bit native x86-64 binary */ -+#define TIF_GRSEC_SETXID 31 /* update credentials on syscall entry/exit */ - - #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) - #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) -@@ -120,16 +115,18 @@ struct thread_info { - #define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT) - #define _TIF_ADDR32 (1 << TIF_ADDR32) - #define _TIF_X32 (1 << TIF_X32) -+#define _TIF_GRSEC_SETXID (1 << TIF_GRSEC_SETXID) - - /* work to do in syscall_trace_enter() */ - #define _TIF_WORK_SYSCALL_ENTRY \ - (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | _TIF_SYSCALL_AUDIT | \ -- _TIF_SECCOMP | _TIF_SINGLESTEP | _TIF_SYSCALL_TRACEPOINT) -+ _TIF_SECCOMP | _TIF_SINGLESTEP | _TIF_SYSCALL_TRACEPOINT | \ -+ _TIF_GRSEC_SETXID) - - /* work to do in syscall_trace_leave() */ - #define _TIF_WORK_SYSCALL_EXIT \ - (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP | \ -- _TIF_SYSCALL_TRACEPOINT) -+ _TIF_SYSCALL_TRACEPOINT | _TIF_GRSEC_SETXID) - - /* work to do on interrupt/exception return */ - #define _TIF_WORK_MASK \ -@@ -139,7 +136,8 @@ struct thread_info { - - /* work to do on any return to user space */ - #define _TIF_ALLWORK_MASK \ -- ((0x0000FFFF & ~_TIF_SECCOMP) | _TIF_SYSCALL_TRACEPOINT) -+ ((0x0000FFFF & ~_TIF_SECCOMP) | _TIF_SYSCALL_TRACEPOINT | \ -+ _TIF_GRSEC_SETXID) - - /* Only used for 64 bit */ - #define _TIF_DO_NOTIFY_MASK \ -@@ -173,45 +171,40 @@ struct thread_info { - ret; \ - }) - --#ifdef CONFIG_X86_32 -- --#define STACK_WARN (THREAD_SIZE/8) --/* -- * macros/functions for gaining access to the thread information structure -- * -- * preempt_count needs to be 1 initially, until the scheduler is functional. -- */ --#ifndef __ASSEMBLY__ -- -- --/* how to get the current stack pointer from C */ --register unsigned long current_stack_pointer asm("esp") __used; -- --/* how to get the thread information struct from C */ --static inline struct thread_info *current_thread_info(void) --{ -- return (struct thread_info *) -- (current_stack_pointer & ~(THREAD_SIZE - 1)); --} -- --#else /* !__ASSEMBLY__ */ -- -+#ifdef __ASSEMBLY__ - /* how to get the thread information struct from ASM */ - #define GET_THREAD_INFO(reg) \ -- movl $-THREAD_SIZE, reg; \ -- andl %esp, reg -+ mov PER_CPU_VAR(current_tinfo), reg - - /* use this one if reg already contains %esp */ --#define GET_THREAD_INFO_WITH_ESP(reg) \ -- andl $-THREAD_SIZE, reg -+#define GET_THREAD_INFO_WITH_ESP(reg) GET_THREAD_INFO(reg) -+#else -+/* how to get the thread information struct from C */ -+DECLARE_PER_CPU(struct thread_info *, current_tinfo); -+ -+static __always_inline struct thread_info *current_thread_info(void) -+{ -+ return percpu_read_stable(current_tinfo); -+} -+#endif -+ -+#ifdef CONFIG_X86_32 -+ -+#define STACK_WARN (THREAD_SIZE/8) -+/* -+ * macros/functions for gaining access to the thread information structure -+ * -+ * preempt_count needs to be 1 initially, until the scheduler is functional. -+ */ -+#ifndef __ASSEMBLY__ -+ -+/* how to get the current stack pointer from C */ -+register unsigned long current_stack_pointer asm("esp") __used; - - #endif - - #else /* X86_32 */ - --#include <asm/percpu.h> --#define KERNEL_STACK_OFFSET (5*8) -- - /* - * macros/functions for gaining access to the thread information structure - * preempt_count needs to be 1 initially, until the scheduler is functional. -@@ -219,27 +212,8 @@ static inline struct thread_info *current_thread_info(void) - #ifndef __ASSEMBLY__ - DECLARE_PER_CPU(unsigned long, kernel_stack); - --static inline struct thread_info *current_thread_info(void) --{ -- struct thread_info *ti; -- ti = (void *)(percpu_read_stable(kernel_stack) + -- KERNEL_STACK_OFFSET - THREAD_SIZE); -- return ti; --} -- --#else /* !__ASSEMBLY__ */ -- --/* how to get the thread information struct from ASM */ --#define GET_THREAD_INFO(reg) \ -- movq PER_CPU_VAR(kernel_stack),reg ; \ -- subq $(THREAD_SIZE-KERNEL_STACK_OFFSET),reg -- --/* -- * Same if PER_CPU_VAR(kernel_stack) is, perhaps with some offset, already in -- * a certain register (to be used in assembler memory operands). -- */ --#define THREAD_INFO(reg, off) KERNEL_STACK_OFFSET+(off)-THREAD_SIZE(reg) -- -+/* how to get the current stack pointer from C */ -+register unsigned long current_stack_pointer asm("rsp") __used; - #endif - - #endif /* !X86_32 */ -@@ -285,5 +259,16 @@ extern void arch_task_cache_init(void); - extern void free_thread_info(struct thread_info *ti); - extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src); - #define arch_task_cache_init arch_task_cache_init -+ -+#define __HAVE_THREAD_FUNCTIONS -+#define task_thread_info(task) (&(task)->tinfo) -+#define task_stack_page(task) ((task)->stack) -+#define setup_thread_stack(p, org) do {} while (0) -+#define end_of_stack(p) ((unsigned long *)task_stack_page(p) + 1) -+ -+#define __HAVE_ARCH_TASK_STRUCT_ALLOCATOR -+extern struct task_struct *alloc_task_struct_node(int node); -+extern void free_task_struct(struct task_struct *); -+ - #endif - #endif /* _ASM_X86_THREAD_INFO_H */ -diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h -index e054459..14bc8a7 100644 ---- a/arch/x86/include/asm/uaccess.h -+++ b/arch/x86/include/asm/uaccess.h -@@ -7,12 +7,15 @@ - #include <linux/compiler.h> - #include <linux/thread_info.h> - #include <linux/string.h> -+#include <linux/sched.h> - #include <asm/asm.h> - #include <asm/page.h> - - #define VERIFY_READ 0 - #define VERIFY_WRITE 1 - -+extern void check_object_size(const void *ptr, unsigned long n, bool to); -+ - /* - * The fs value determines whether argument validity checking should be - * performed or not. If get_fs() == USER_DS, checking is performed, with -@@ -28,7 +31,12 @@ - - #define get_ds() (KERNEL_DS) - #define get_fs() (current_thread_info()->addr_limit) -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF) -+void __set_fs(mm_segment_t x); -+void set_fs(mm_segment_t x); -+#else - #define set_fs(x) (current_thread_info()->addr_limit = (x)) -+#endif - - #define segment_eq(a, b) ((a).seg == (b).seg) - -@@ -76,7 +84,33 @@ - * checks that the pointer is in the user space range - after calling - * this function, memory access functions may still return -EFAULT. - */ --#define access_ok(type, addr, size) (likely(__range_not_ok(addr, size) == 0)) -+#define __access_ok(type, addr, size) (likely(__range_not_ok(addr, size) == 0)) -+#define access_ok(type, addr, size) \ -+({ \ -+ long __size = size; \ -+ unsigned long __addr = (unsigned long)addr; \ -+ unsigned long __addr_ao = __addr & PAGE_MASK; \ -+ unsigned long __end_ao = __addr + __size - 1; \ -+ bool __ret_ao = __range_not_ok(__addr, __size) == 0; \ -+ if (__ret_ao && unlikely((__end_ao ^ __addr_ao) & PAGE_MASK)) { \ -+ while(__addr_ao <= __end_ao) { \ -+ char __c_ao; \ -+ __addr_ao += PAGE_SIZE; \ -+ if (__size > PAGE_SIZE) \ -+ cond_resched(); \ -+ if (__get_user(__c_ao, (char __user *)__addr)) \ -+ break; \ -+ if (type != VERIFY_WRITE) { \ -+ __addr = __addr_ao; \ -+ continue; \ -+ } \ -+ if (__put_user(__c_ao, (char __user *)__addr)) \ -+ break; \ -+ __addr = __addr_ao; \ -+ } \ -+ } \ -+ __ret_ao; \ -+}) - - /* - * The exception table consists of pairs of addresses: the first is the -@@ -182,12 +216,20 @@ extern int __get_user_bad(void); - asm volatile("call __put_user_" #size : "=a" (__ret_pu) \ - : "0" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx") - -- -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF) -+#define __copyuser_seg "gs;" -+#define __COPYUSER_SET_ES "pushl %%gs; popl %%es\n" -+#define __COPYUSER_RESTORE_ES "pushl %%ss; popl %%es\n" -+#else -+#define __copyuser_seg -+#define __COPYUSER_SET_ES -+#define __COPYUSER_RESTORE_ES -+#endif - - #ifdef CONFIG_X86_32 - #define __put_user_asm_u64(x, addr, err, errret) \ -- asm volatile("1: movl %%eax,0(%2)\n" \ -- "2: movl %%edx,4(%2)\n" \ -+ asm volatile("1: "__copyuser_seg"movl %%eax,0(%2)\n" \ -+ "2: "__copyuser_seg"movl %%edx,4(%2)\n" \ - "3:\n" \ - ".section .fixup,\"ax\"\n" \ - "4: movl %3,%0\n" \ -@@ -199,8 +241,8 @@ extern int __get_user_bad(void); - : "A" (x), "r" (addr), "i" (errret), "0" (err)) - - #define __put_user_asm_ex_u64(x, addr) \ -- asm volatile("1: movl %%eax,0(%1)\n" \ -- "2: movl %%edx,4(%1)\n" \ -+ asm volatile("1: "__copyuser_seg"movl %%eax,0(%1)\n" \ -+ "2: "__copyuser_seg"movl %%edx,4(%1)\n" \ - "3:\n" \ - _ASM_EXTABLE(1b, 2b - 1b) \ - _ASM_EXTABLE(2b, 3b - 2b) \ -@@ -252,7 +294,7 @@ extern void __put_user_8(void); - __typeof__(*(ptr)) __pu_val; \ - __chk_user_ptr(ptr); \ - might_fault(); \ -- __pu_val = x; \ -+ __pu_val = (x); \ - switch (sizeof(*(ptr))) { \ - case 1: \ - __put_user_x(1, __pu_val, ptr, __ret_pu); \ -@@ -373,7 +415,7 @@ do { \ - } while (0) - - #define __get_user_asm(x, addr, err, itype, rtype, ltype, errret) \ -- asm volatile("1: mov"itype" %2,%"rtype"1\n" \ -+ asm volatile("1: "__copyuser_seg"mov"itype" %2,%"rtype"1\n"\ - "2:\n" \ - ".section .fixup,\"ax\"\n" \ - "3: mov %3,%0\n" \ -@@ -381,7 +423,7 @@ do { \ - " jmp 2b\n" \ - ".previous\n" \ - _ASM_EXTABLE(1b, 3b) \ -- : "=r" (err), ltype(x) \ -+ : "=r" (err), ltype (x) \ - : "m" (__m(addr)), "i" (errret), "0" (err)) - - #define __get_user_size_ex(x, ptr, size) \ -@@ -406,7 +448,7 @@ do { \ - } while (0) - - #define __get_user_asm_ex(x, addr, itype, rtype, ltype) \ -- asm volatile("1: mov"itype" %1,%"rtype"0\n" \ -+ asm volatile("1: "__copyuser_seg"mov"itype" %1,%"rtype"0\n"\ - "2:\n" \ - _ASM_EXTABLE(1b, 2b - 1b) \ - : ltype(x) : "m" (__m(addr))) -@@ -423,13 +465,24 @@ do { \ - int __gu_err; \ - unsigned long __gu_val; \ - __get_user_size(__gu_val, (ptr), (size), __gu_err, -EFAULT); \ -- (x) = (__force __typeof__(*(ptr)))__gu_val; \ -+ (x) = (__typeof__(*(ptr)))__gu_val; \ - __gu_err; \ - }) - - /* FIXME: this hack is definitely wrong -AK */ - struct __large_struct { unsigned long buf[100]; }; --#define __m(x) (*(struct __large_struct __user *)(x)) -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+#define ____m(x) \ -+({ \ -+ unsigned long ____x = (unsigned long)(x); \ -+ if (____x < PAX_USER_SHADOW_BASE) \ -+ ____x += PAX_USER_SHADOW_BASE; \ -+ (void __user *)____x; \ -+}) -+#else -+#define ____m(x) (x) -+#endif -+#define __m(x) (*(struct __large_struct __user *)____m(x)) - - /* - * Tell gcc we read from memory instead of writing: this is because -@@ -437,7 +490,7 @@ struct __large_struct { unsigned long buf[100]; }; - * aliasing issues. - */ - #define __put_user_asm(x, addr, err, itype, rtype, ltype, errret) \ -- asm volatile("1: mov"itype" %"rtype"1,%2\n" \ -+ asm volatile("1: "__copyuser_seg"mov"itype" %"rtype"1,%2\n"\ - "2:\n" \ - ".section .fixup,\"ax\"\n" \ - "3: mov %3,%0\n" \ -@@ -445,10 +498,10 @@ struct __large_struct { unsigned long buf[100]; }; - ".previous\n" \ - _ASM_EXTABLE(1b, 3b) \ - : "=r"(err) \ -- : ltype(x), "m" (__m(addr)), "i" (errret), "0" (err)) -+ : ltype (x), "m" (__m(addr)), "i" (errret), "0" (err)) - - #define __put_user_asm_ex(x, addr, itype, rtype, ltype) \ -- asm volatile("1: mov"itype" %"rtype"0,%1\n" \ -+ asm volatile("1: "__copyuser_seg"mov"itype" %"rtype"0,%1\n"\ - "2:\n" \ - _ASM_EXTABLE(1b, 2b - 1b) \ - : : ltype(x), "m" (__m(addr))) -@@ -487,8 +540,12 @@ struct __large_struct { unsigned long buf[100]; }; - * On error, the variable @x is set to zero. - */ - -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+#define __get_user(x, ptr) get_user((x), (ptr)) -+#else - #define __get_user(x, ptr) \ - __get_user_nocheck((x), (ptr), sizeof(*(ptr))) -+#endif - - /** - * __put_user: - Write a simple value into user space, with less checking. -@@ -510,8 +567,12 @@ struct __large_struct { unsigned long buf[100]; }; - * Returns zero on success, or -EFAULT on error. - */ - -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+#define __put_user(x, ptr) put_user((x), (ptr)) -+#else - #define __put_user(x, ptr) \ - __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr))) -+#endif - - #define __get_user_unaligned __get_user - #define __put_user_unaligned __put_user -@@ -529,7 +590,7 @@ struct __large_struct { unsigned long buf[100]; }; - #define get_user_ex(x, ptr) do { \ - unsigned long __gue_val; \ - __get_user_size_ex((__gue_val), (ptr), (sizeof(*(ptr)))); \ -- (x) = (__force __typeof__(*(ptr)))__gue_val; \ -+ (x) = (__typeof__(*(ptr)))__gue_val; \ - } while (0) - - #ifdef CONFIG_X86_WP_WORKS_OK -diff --git a/arch/x86/include/asm/uaccess_32.h b/arch/x86/include/asm/uaccess_32.h -index 8084bc7..3d6ec37 100644 ---- a/arch/x86/include/asm/uaccess_32.h -+++ b/arch/x86/include/asm/uaccess_32.h -@@ -11,15 +11,15 @@ - #include <asm/page.h> - - unsigned long __must_check __copy_to_user_ll -- (void __user *to, const void *from, unsigned long n); -+ (void __user *to, const void *from, unsigned long n) __size_overflow(3); - unsigned long __must_check __copy_from_user_ll -- (void *to, const void __user *from, unsigned long n); -+ (void *to, const void __user *from, unsigned long n) __size_overflow(3); - unsigned long __must_check __copy_from_user_ll_nozero -- (void *to, const void __user *from, unsigned long n); -+ (void *to, const void __user *from, unsigned long n) __size_overflow(3); - unsigned long __must_check __copy_from_user_ll_nocache -- (void *to, const void __user *from, unsigned long n); -+ (void *to, const void __user *from, unsigned long n) __size_overflow(3); - unsigned long __must_check __copy_from_user_ll_nocache_nozero -- (void *to, const void __user *from, unsigned long n); -+ (void *to, const void __user *from, unsigned long n) __size_overflow(3); - - /** - * __copy_to_user_inatomic: - Copy a block of data into user space, with less checking. -@@ -43,6 +43,9 @@ unsigned long __must_check __copy_from_user_ll_nocache_nozero - static __always_inline unsigned long __must_check - __copy_to_user_inatomic(void __user *to, const void *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - if (__builtin_constant_p(n)) { - unsigned long ret; - -@@ -61,6 +64,8 @@ __copy_to_user_inatomic(void __user *to, const void *from, unsigned long n) - return ret; - } - } -+ if (!__builtin_constant_p(n)) -+ check_object_size(from, n, true); - return __copy_to_user_ll(to, from, n); - } - -@@ -82,12 +87,16 @@ static __always_inline unsigned long __must_check - __copy_to_user(void __user *to, const void *from, unsigned long n) - { - might_fault(); -+ - return __copy_to_user_inatomic(to, from, n); - } - - static __always_inline unsigned long - __copy_from_user_inatomic(void *to, const void __user *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - /* Avoid zeroing the tail if the copy fails.. - * If 'n' is constant and 1, 2, or 4, we do still zero on a failure, - * but as the zeroing behaviour is only significant when n is not -@@ -137,6 +146,10 @@ static __always_inline unsigned long - __copy_from_user(void *to, const void __user *from, unsigned long n) - { - might_fault(); -+ -+ if ((long)n < 0) -+ return n; -+ - if (__builtin_constant_p(n)) { - unsigned long ret; - -@@ -152,6 +165,8 @@ __copy_from_user(void *to, const void __user *from, unsigned long n) - return ret; - } - } -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); - return __copy_from_user_ll(to, from, n); - } - -@@ -159,6 +174,10 @@ static __always_inline unsigned long __copy_from_user_nocache(void *to, - const void __user *from, unsigned long n) - { - might_fault(); -+ -+ if ((long)n < 0) -+ return n; -+ - if (__builtin_constant_p(n)) { - unsigned long ret; - -@@ -181,15 +200,19 @@ static __always_inline unsigned long - __copy_from_user_inatomic_nocache(void *to, const void __user *from, - unsigned long n) - { -- return __copy_from_user_ll_nocache_nozero(to, from, n); -+ if ((long)n < 0) -+ return n; -+ -+ return __copy_from_user_ll_nocache_nozero(to, from, n); - } - --unsigned long __must_check copy_to_user(void __user *to, -- const void *from, unsigned long n); --unsigned long __must_check _copy_from_user(void *to, -- const void __user *from, -- unsigned long n); -- -+extern void copy_to_user_overflow(void) -+#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS -+ __compiletime_error("copy_to_user() buffer size is not provably correct") -+#else -+ __compiletime_warning("copy_to_user() buffer size is not provably correct") -+#endif -+; - - extern void copy_from_user_overflow(void) - #ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS -@@ -199,17 +222,61 @@ extern void copy_from_user_overflow(void) - #endif - ; - --static inline unsigned long __must_check copy_from_user(void *to, -- const void __user *from, -- unsigned long n) -+/** -+ * copy_to_user: - Copy a block of data into user space. -+ * @to: Destination address, in user space. -+ * @from: Source address, in kernel space. -+ * @n: Number of bytes to copy. -+ * -+ * Context: User context only. This function may sleep. -+ * -+ * Copy data from kernel space to user space. -+ * -+ * Returns number of bytes that could not be copied. -+ * On success, this will be zero. -+ */ -+static inline unsigned long __must_check -+copy_to_user(void __user *to, const void *from, unsigned long n) - { -- int sz = __compiletime_object_size(to); -+ size_t sz = __compiletime_object_size(from); - -- if (likely(sz == -1 || sz >= n)) -- n = _copy_from_user(to, from, n); -- else -+ if (unlikely(sz != (size_t)-1 && sz < n)) -+ copy_to_user_overflow(); -+ else if (access_ok(VERIFY_WRITE, to, n)) -+ n = __copy_to_user(to, from, n); -+ return n; -+} -+ -+/** -+ * copy_from_user: - Copy a block of data from user space. -+ * @to: Destination address, in kernel space. -+ * @from: Source address, in user space. -+ * @n: Number of bytes to copy. -+ * -+ * Context: User context only. This function may sleep. -+ * -+ * Copy data from user space to kernel space. -+ * -+ * Returns number of bytes that could not be copied. -+ * On success, this will be zero. -+ * -+ * If some data could not be copied, this function will pad the copied -+ * data to the requested size using zero bytes. -+ */ -+static inline unsigned long __must_check -+copy_from_user(void *to, const void __user *from, unsigned long n) -+{ -+ size_t sz = __compiletime_object_size(to); -+ -+ if (unlikely(sz != (size_t)-1 && sz < n)) - copy_from_user_overflow(); -- -+ else if (access_ok(VERIFY_READ, from, n)) -+ n = __copy_from_user(to, from, n); -+ else if ((long)n > 0) { -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); -+ memset(to, 0, n); -+ } - return n; - } - -@@ -230,7 +297,7 @@ static inline unsigned long __must_check copy_from_user(void *to, - #define strlen_user(str) strnlen_user(str, LONG_MAX) - - long strnlen_user(const char __user *str, long n); --unsigned long __must_check clear_user(void __user *mem, unsigned long len); --unsigned long __must_check __clear_user(void __user *mem, unsigned long len); -+unsigned long __must_check clear_user(void __user *mem, unsigned long len) __size_overflow(2); -+unsigned long __must_check __clear_user(void __user *mem, unsigned long len) __size_overflow(2); - - #endif /* _ASM_X86_UACCESS_32_H */ -diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h -index fcd4b6f..ef04f8f 100644 ---- a/arch/x86/include/asm/uaccess_64.h -+++ b/arch/x86/include/asm/uaccess_64.h -@@ -10,6 +10,9 @@ - #include <asm/alternative.h> - #include <asm/cpufeature.h> - #include <asm/page.h> -+#include <asm/pgtable.h> -+ -+#define set_fs(x) (current_thread_info()->addr_limit = (x)) - - /* - * Copy To/From Userspace -@@ -17,12 +20,14 @@ - - /* Handles exceptions in both to and from, but doesn't do access_ok */ - __must_check unsigned long --copy_user_generic_string(void *to, const void *from, unsigned len); -+copy_user_generic_string(void *to, const void *from, unsigned long len) __size_overflow(3); - __must_check unsigned long --copy_user_generic_unrolled(void *to, const void *from, unsigned len); -+copy_user_generic_unrolled(void *to, const void *from, unsigned long len) __size_overflow(3); - - static __always_inline __must_check unsigned long --copy_user_generic(void *to, const void *from, unsigned len) -+copy_user_generic(void *to, const void *from, unsigned long len) __size_overflow(3); -+static __always_inline __must_check unsigned long -+copy_user_generic(void *to, const void *from, unsigned long len) - { - unsigned ret; - -@@ -32,142 +37,238 @@ copy_user_generic(void *to, const void *from, unsigned len) - ASM_OUTPUT2("=a" (ret), "=D" (to), "=S" (from), - "=d" (len)), - "1" (to), "2" (from), "3" (len) -- : "memory", "rcx", "r8", "r9", "r10", "r11"); -+ : "memory", "rcx", "r8", "r9", "r11"); - return ret; - } - -+static __always_inline __must_check unsigned long -+__copy_to_user(void __user *to, const void *from, unsigned long len) __size_overflow(3); -+static __always_inline __must_check unsigned long -+__copy_from_user(void *to, const void __user *from, unsigned long len) __size_overflow(3); - __must_check unsigned long --_copy_to_user(void __user *to, const void *from, unsigned len); --__must_check unsigned long --_copy_from_user(void *to, const void __user *from, unsigned len); --__must_check unsigned long --copy_in_user(void __user *to, const void __user *from, unsigned len); -+copy_in_user(void __user *to, const void __user *from, unsigned long len) __size_overflow(3); -+ -+extern void copy_to_user_overflow(void) -+#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS -+ __compiletime_error("copy_to_user() buffer size is not provably correct") -+#else -+ __compiletime_warning("copy_to_user() buffer size is not provably correct") -+#endif -+; -+ -+extern void copy_from_user_overflow(void) -+#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS -+ __compiletime_error("copy_from_user() buffer size is not provably correct") -+#else -+ __compiletime_warning("copy_from_user() buffer size is not provably correct") -+#endif -+; - - static inline unsigned long __must_check copy_from_user(void *to, - const void __user *from, - unsigned long n) - { -- int sz = __compiletime_object_size(to); -- - might_fault(); -- if (likely(sz == -1 || sz >= n)) -- n = _copy_from_user(to, from, n); --#ifdef CONFIG_DEBUG_VM -- else -- WARN(1, "Buffer overflow detected!\n"); --#endif -+ -+ if (access_ok(VERIFY_READ, from, n)) -+ n = __copy_from_user(to, from, n); -+ else if (n < INT_MAX) { -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); -+ memset(to, 0, n); -+ } - return n; - } - - static __always_inline __must_check --int copy_to_user(void __user *dst, const void *src, unsigned size) -+int copy_to_user(void __user *dst, const void *src, unsigned long size) - { - might_fault(); - -- return _copy_to_user(dst, src, size); -+ if (access_ok(VERIFY_WRITE, dst, size)) -+ size = __copy_to_user(dst, src, size); -+ return size; - } - - static __always_inline __must_check --int __copy_from_user(void *dst, const void __user *src, unsigned size) -+unsigned long __copy_from_user(void *dst, const void __user *src, unsigned long size) - { -- int ret = 0; -+ size_t sz = __compiletime_object_size(dst); -+ unsigned ret = 0; - - might_fault(); -- if (!__builtin_constant_p(size)) -- return copy_user_generic(dst, (__force void *)src, size); -+ -+ if (size > INT_MAX) -+ return size; -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if (!__access_ok(VERIFY_READ, src, size)) -+ return size; -+#endif -+ -+ if (unlikely(sz != (size_t)-1 && sz < size)) { -+ copy_from_user_overflow(); -+ return size; -+ } -+ -+ if (!__builtin_constant_p(size)) { -+ check_object_size(dst, size, false); -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)src < PAX_USER_SHADOW_BASE) -+ src += PAX_USER_SHADOW_BASE; -+#endif -+ -+ return copy_user_generic(dst, (__force_kernel const void *)src, size); -+ } - switch (size) { -- case 1:__get_user_asm(*(u8 *)dst, (u8 __user *)src, -+ case 1:__get_user_asm(*(u8 *)dst, (const u8 __user *)src, - ret, "b", "b", "=q", 1); - return ret; -- case 2:__get_user_asm(*(u16 *)dst, (u16 __user *)src, -+ case 2:__get_user_asm(*(u16 *)dst, (const u16 __user *)src, - ret, "w", "w", "=r", 2); - return ret; -- case 4:__get_user_asm(*(u32 *)dst, (u32 __user *)src, -+ case 4:__get_user_asm(*(u32 *)dst, (const u32 __user *)src, - ret, "l", "k", "=r", 4); - return ret; -- case 8:__get_user_asm(*(u64 *)dst, (u64 __user *)src, -+ case 8:__get_user_asm(*(u64 *)dst, (const u64 __user *)src, - ret, "q", "", "=r", 8); - return ret; - case 10: -- __get_user_asm(*(u64 *)dst, (u64 __user *)src, -+ __get_user_asm(*(u64 *)dst, (const u64 __user *)src, - ret, "q", "", "=r", 10); - if (unlikely(ret)) - return ret; - __get_user_asm(*(u16 *)(8 + (char *)dst), -- (u16 __user *)(8 + (char __user *)src), -+ (const u16 __user *)(8 + (const char __user *)src), - ret, "w", "w", "=r", 2); - return ret; - case 16: -- __get_user_asm(*(u64 *)dst, (u64 __user *)src, -+ __get_user_asm(*(u64 *)dst, (const u64 __user *)src, - ret, "q", "", "=r", 16); - if (unlikely(ret)) - return ret; - __get_user_asm(*(u64 *)(8 + (char *)dst), -- (u64 __user *)(8 + (char __user *)src), -+ (const u64 __user *)(8 + (const char __user *)src), - ret, "q", "", "=r", 8); - return ret; - default: -- return copy_user_generic(dst, (__force void *)src, size); -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)src < PAX_USER_SHADOW_BASE) -+ src += PAX_USER_SHADOW_BASE; -+#endif -+ -+ return copy_user_generic(dst, (__force_kernel const void *)src, size); - } - } - - static __always_inline __must_check --int __copy_to_user(void __user *dst, const void *src, unsigned size) -+unsigned long __copy_to_user(void __user *dst, const void *src, unsigned long size) - { -- int ret = 0; -+ size_t sz = __compiletime_object_size(src); -+ unsigned ret = 0; - - might_fault(); -- if (!__builtin_constant_p(size)) -- return copy_user_generic((__force void *)dst, src, size); -+ -+ if (size > INT_MAX) -+ return size; -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if (!__access_ok(VERIFY_WRITE, dst, size)) -+ return size; -+#endif -+ -+ if (unlikely(sz != (size_t)-1 && sz < size)) { -+ copy_to_user_overflow(); -+ return size; -+ } -+ -+ if (!__builtin_constant_p(size)) { -+ check_object_size(src, size, true); -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)dst < PAX_USER_SHADOW_BASE) -+ dst += PAX_USER_SHADOW_BASE; -+#endif -+ -+ return copy_user_generic((__force_kernel void *)dst, src, size); -+ } - switch (size) { -- case 1:__put_user_asm(*(u8 *)src, (u8 __user *)dst, -+ case 1:__put_user_asm(*(const u8 *)src, (u8 __user *)dst, - ret, "b", "b", "iq", 1); - return ret; -- case 2:__put_user_asm(*(u16 *)src, (u16 __user *)dst, -+ case 2:__put_user_asm(*(const u16 *)src, (u16 __user *)dst, - ret, "w", "w", "ir", 2); - return ret; -- case 4:__put_user_asm(*(u32 *)src, (u32 __user *)dst, -+ case 4:__put_user_asm(*(const u32 *)src, (u32 __user *)dst, - ret, "l", "k", "ir", 4); - return ret; -- case 8:__put_user_asm(*(u64 *)src, (u64 __user *)dst, -+ case 8:__put_user_asm(*(const u64 *)src, (u64 __user *)dst, - ret, "q", "", "er", 8); - return ret; - case 10: -- __put_user_asm(*(u64 *)src, (u64 __user *)dst, -+ __put_user_asm(*(const u64 *)src, (u64 __user *)dst, - ret, "q", "", "er", 10); - if (unlikely(ret)) - return ret; - asm("":::"memory"); -- __put_user_asm(4[(u16 *)src], 4 + (u16 __user *)dst, -+ __put_user_asm(4[(const u16 *)src], 4 + (u16 __user *)dst, - ret, "w", "w", "ir", 2); - return ret; - case 16: -- __put_user_asm(*(u64 *)src, (u64 __user *)dst, -+ __put_user_asm(*(const u64 *)src, (u64 __user *)dst, - ret, "q", "", "er", 16); - if (unlikely(ret)) - return ret; - asm("":::"memory"); -- __put_user_asm(1[(u64 *)src], 1 + (u64 __user *)dst, -+ __put_user_asm(1[(const u64 *)src], 1 + (u64 __user *)dst, - ret, "q", "", "er", 8); - return ret; - default: -- return copy_user_generic((__force void *)dst, src, size); -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)dst < PAX_USER_SHADOW_BASE) -+ dst += PAX_USER_SHADOW_BASE; -+#endif -+ -+ return copy_user_generic((__force_kernel void *)dst, src, size); - } - } - - static __always_inline __must_check --int __copy_in_user(void __user *dst, const void __user *src, unsigned size) -+unsigned long __copy_in_user(void __user *dst, const void __user *src, unsigned long size) - { -- int ret = 0; -+ unsigned ret = 0; - - might_fault(); -- if (!__builtin_constant_p(size)) -- return copy_user_generic((__force void *)dst, -- (__force void *)src, size); -+ -+ if (size > INT_MAX) -+ return size; -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if (!__access_ok(VERIFY_READ, src, size)) -+ return size; -+ if (!__access_ok(VERIFY_WRITE, dst, size)) -+ return size; -+#endif -+ -+ if (!__builtin_constant_p(size)) { -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)src < PAX_USER_SHADOW_BASE) -+ src += PAX_USER_SHADOW_BASE; -+ if ((unsigned long)dst < PAX_USER_SHADOW_BASE) -+ dst += PAX_USER_SHADOW_BASE; -+#endif -+ -+ return copy_user_generic((__force_kernel void *)dst, -+ (__force_kernel const void *)src, size); -+ } - switch (size) { - case 1: { - u8 tmp; -- __get_user_asm(tmp, (u8 __user *)src, -+ __get_user_asm(tmp, (const u8 __user *)src, - ret, "b", "b", "=q", 1); - if (likely(!ret)) - __put_user_asm(tmp, (u8 __user *)dst, -@@ -176,7 +277,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size) - } - case 2: { - u16 tmp; -- __get_user_asm(tmp, (u16 __user *)src, -+ __get_user_asm(tmp, (const u16 __user *)src, - ret, "w", "w", "=r", 2); - if (likely(!ret)) - __put_user_asm(tmp, (u16 __user *)dst, -@@ -186,7 +287,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size) - - case 4: { - u32 tmp; -- __get_user_asm(tmp, (u32 __user *)src, -+ __get_user_asm(tmp, (const u32 __user *)src, - ret, "l", "k", "=r", 4); - if (likely(!ret)) - __put_user_asm(tmp, (u32 __user *)dst, -@@ -195,7 +296,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size) - } - case 8: { - u64 tmp; -- __get_user_asm(tmp, (u64 __user *)src, -+ __get_user_asm(tmp, (const u64 __user *)src, - ret, "q", "", "=r", 8); - if (likely(!ret)) - __put_user_asm(tmp, (u64 __user *)dst, -@@ -203,47 +304,92 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size) - return ret; - } - default: -- return copy_user_generic((__force void *)dst, -- (__force void *)src, size); -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)src < PAX_USER_SHADOW_BASE) -+ src += PAX_USER_SHADOW_BASE; -+ if ((unsigned long)dst < PAX_USER_SHADOW_BASE) -+ dst += PAX_USER_SHADOW_BASE; -+#endif -+ -+ return copy_user_generic((__force_kernel void *)dst, -+ (__force_kernel const void *)src, size); - } - } - - __must_check long strnlen_user(const char __user *str, long n); - __must_check long __strnlen_user(const char __user *str, long n); - __must_check long strlen_user(const char __user *str); --__must_check unsigned long clear_user(void __user *mem, unsigned long len); --__must_check unsigned long __clear_user(void __user *mem, unsigned long len); -+__must_check unsigned long clear_user(void __user *mem, unsigned long len) __size_overflow(2); -+__must_check unsigned long __clear_user(void __user *mem, unsigned long len) __size_overflow(2); - - static __must_check __always_inline int --__copy_from_user_inatomic(void *dst, const void __user *src, unsigned size) -+__copy_from_user_inatomic(void *dst, const void __user *src, unsigned long size) - { -- return copy_user_generic(dst, (__force const void *)src, size); -+ if (size > INT_MAX) -+ return size; -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if (!__access_ok(VERIFY_READ, src, size)) -+ return size; -+ -+ if ((unsigned long)src < PAX_USER_SHADOW_BASE) -+ src += PAX_USER_SHADOW_BASE; -+#endif -+ -+ return copy_user_generic(dst, (__force_kernel const void *)src, size); - } - --static __must_check __always_inline int --__copy_to_user_inatomic(void __user *dst, const void *src, unsigned size) -+static __must_check __always_inline unsigned long -+__copy_to_user_inatomic(void __user *dst, const void *src, unsigned long size) - { -- return copy_user_generic((__force void *)dst, src, size); -+ if (size > INT_MAX) -+ return size; -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if (!__access_ok(VERIFY_WRITE, dst, size)) -+ return size; -+ -+ if ((unsigned long)dst < PAX_USER_SHADOW_BASE) -+ dst += PAX_USER_SHADOW_BASE; -+#endif -+ -+ return copy_user_generic((__force_kernel void *)dst, src, size); - } - --extern long __copy_user_nocache(void *dst, const void __user *src, -- unsigned size, int zerorest); -+extern unsigned long __copy_user_nocache(void *dst, const void __user *src, -+ unsigned long size, int zerorest) __size_overflow(3); - --static inline int --__copy_from_user_nocache(void *dst, const void __user *src, unsigned size) -+static inline unsigned long __copy_from_user_nocache(void *dst, const void __user *src, unsigned long size) - { - might_sleep(); -+ -+ if (size > INT_MAX) -+ return size; -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if (!__access_ok(VERIFY_READ, src, size)) -+ return size; -+#endif -+ - return __copy_user_nocache(dst, src, size, 1); - } - --static inline int --__copy_from_user_inatomic_nocache(void *dst, const void __user *src, -- unsigned size) -+static inline unsigned long __copy_from_user_inatomic_nocache(void *dst, const void __user *src, -+ unsigned long size) - { -+ if (size > INT_MAX) -+ return size; -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if (!__access_ok(VERIFY_READ, src, size)) -+ return size; -+#endif -+ - return __copy_user_nocache(dst, src, size, 0); - } - --unsigned long --copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest); -+extern unsigned long -+copy_user_handle_tail(char __user *to, char __user *from, unsigned long len, unsigned zerorest) __size_overflow(3); - - #endif /* _ASM_X86_UACCESS_64_H */ -diff --git a/arch/x86/include/asm/vdso.h b/arch/x86/include/asm/vdso.h -index bb05228..d763d5b 100644 ---- a/arch/x86/include/asm/vdso.h -+++ b/arch/x86/include/asm/vdso.h -@@ -11,7 +11,7 @@ extern const char VDSO32_PRELINK[]; - #define VDSO32_SYMBOL(base, name) \ - ({ \ - extern const char VDSO32_##name[]; \ -- (void *)(VDSO32_##name - VDSO32_PRELINK + (unsigned long)(base)); \ -+ (void __user *)(VDSO32_##name - VDSO32_PRELINK + (unsigned long)(base)); \ - }) - #endif - -diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h -index 764b66a..ad3cfc8 100644 ---- a/arch/x86/include/asm/x86_init.h -+++ b/arch/x86/include/asm/x86_init.h -@@ -29,7 +29,7 @@ struct x86_init_mpparse { - void (*mpc_oem_bus_info)(struct mpc_bus *m, char *name); - void (*find_smp_config)(void); - void (*get_smp_config)(unsigned int early); --}; -+} __no_const; - - /** - * struct x86_init_resources - platform specific resource related ops -@@ -43,7 +43,7 @@ struct x86_init_resources { - void (*probe_roms)(void); - void (*reserve_resources)(void); - char *(*memory_setup)(void); --}; -+} __no_const; - - /** - * struct x86_init_irqs - platform specific interrupt setup -@@ -56,7 +56,7 @@ struct x86_init_irqs { - void (*pre_vector_init)(void); - void (*intr_init)(void); - void (*trap_init)(void); --}; -+} __no_const; - - /** - * struct x86_init_oem - oem platform specific customizing functions -@@ -66,7 +66,7 @@ struct x86_init_irqs { - struct x86_init_oem { - void (*arch_setup)(void); - void (*banner)(void); --}; -+} __no_const; - - /** - * struct x86_init_mapping - platform specific initial kernel pagetable setup -@@ -77,7 +77,7 @@ struct x86_init_oem { - */ - struct x86_init_mapping { - void (*pagetable_reserve)(u64 start, u64 end); --}; -+} __no_const; - - /** - * struct x86_init_paging - platform specific paging functions -@@ -87,7 +87,7 @@ struct x86_init_mapping { - struct x86_init_paging { - void (*pagetable_setup_start)(pgd_t *base); - void (*pagetable_setup_done)(pgd_t *base); --}; -+} __no_const; - - /** - * struct x86_init_timers - platform specific timer setup -@@ -102,7 +102,7 @@ struct x86_init_timers { - void (*tsc_pre_init)(void); - void (*timer_init)(void); - void (*wallclock_init)(void); --}; -+} __no_const; - - /** - * struct x86_init_iommu - platform specific iommu setup -@@ -110,7 +110,7 @@ struct x86_init_timers { - */ - struct x86_init_iommu { - int (*iommu_init)(void); --}; -+} __no_const; - - /** - * struct x86_init_pci - platform specific pci init functions -@@ -124,7 +124,7 @@ struct x86_init_pci { - int (*init)(void); - void (*init_irq)(void); - void (*fixup_irqs)(void); --}; -+} __no_const; - - /** - * struct x86_init_ops - functions for platform specific setup -@@ -140,7 +140,7 @@ struct x86_init_ops { - struct x86_init_timers timers; - struct x86_init_iommu iommu; - struct x86_init_pci pci; --}; -+} __no_const; - - /** - * struct x86_cpuinit_ops - platform specific cpu hotplug setups -@@ -151,7 +151,7 @@ struct x86_cpuinit_ops { - void (*setup_percpu_clockev)(void); - void (*early_percpu_clock_init)(void); - void (*fixup_cpu_id)(struct cpuinfo_x86 *c, int node); --}; -+} __no_const; - - /** - * struct x86_platform_ops - platform specific runtime functions -@@ -177,7 +177,7 @@ struct x86_platform_ops { - int (*i8042_detect)(void); - void (*save_sched_clock_state)(void); - void (*restore_sched_clock_state)(void); --}; -+} __no_const; - - struct pci_dev; - -@@ -186,7 +186,7 @@ struct x86_msi_ops { - void (*teardown_msi_irq)(unsigned int irq); - void (*teardown_msi_irqs)(struct pci_dev *dev); - void (*restore_msi_irqs)(struct pci_dev *dev, int irq); --}; -+} __no_const; - - extern struct x86_init_ops x86_init; - extern struct x86_cpuinit_ops x86_cpuinit; -diff --git a/arch/x86/include/asm/xsave.h b/arch/x86/include/asm/xsave.h -index c6ce245..ffbdab7 100644 ---- a/arch/x86/include/asm/xsave.h -+++ b/arch/x86/include/asm/xsave.h -@@ -65,6 +65,11 @@ static inline int xsave_user(struct xsave_struct __user *buf) - { - int err; - -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ if ((unsigned long)buf < PAX_USER_SHADOW_BASE) -+ buf = (struct xsave_struct __user *)((void __user*)buf + PAX_USER_SHADOW_BASE); -+#endif -+ - /* - * Clear the xsave header first, so that reserved fields are - * initialized to zero. -@@ -96,10 +101,15 @@ static inline int xsave_user(struct xsave_struct __user *buf) - static inline int xrestore_user(struct xsave_struct __user *buf, u64 mask) - { - int err; -- struct xsave_struct *xstate = ((__force struct xsave_struct *)buf); -+ struct xsave_struct *xstate = ((__force_kernel struct xsave_struct *)buf); - u32 lmask = mask; - u32 hmask = mask >> 32; - -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ if ((unsigned long)xstate < PAX_USER_SHADOW_BASE) -+ xstate = (struct xsave_struct *)((void *)xstate + PAX_USER_SHADOW_BASE); -+#endif -+ - __asm__ __volatile__("1: .byte " REX_PREFIX "0x0f,0xae,0x2f\n" - "2:\n" - ".section .fixup,\"ax\"\n" -diff --git a/arch/x86/kernel/acpi/realmode/Makefile b/arch/x86/kernel/acpi/realmode/Makefile -index 6a564ac..9b1340c 100644 ---- a/arch/x86/kernel/acpi/realmode/Makefile -+++ b/arch/x86/kernel/acpi/realmode/Makefile -@@ -41,6 +41,9 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D_WAKEUP -D__KERNEL__ \ - $(call cc-option, -fno-stack-protector) \ - $(call cc-option, -mpreferred-stack-boundary=2) - KBUILD_CFLAGS += $(call cc-option, -m32) -+ifdef CONSTIFY_PLUGIN -+KBUILD_CFLAGS += $(CONSTIFY_PLUGIN) -fplugin-arg-constify_plugin-no-constify -+endif - KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ - GCOV_PROFILE := n - -diff --git a/arch/x86/kernel/acpi/realmode/wakeup.S b/arch/x86/kernel/acpi/realmode/wakeup.S -index b4fd836..4358fe3 100644 ---- a/arch/x86/kernel/acpi/realmode/wakeup.S -+++ b/arch/x86/kernel/acpi/realmode/wakeup.S -@@ -108,6 +108,9 @@ wakeup_code: - /* Do any other stuff... */ - - #ifndef CONFIG_64BIT -+ /* Recheck NX bit overrides (64bit path does this in trampoline */ -+ call verify_cpu -+ - /* This could also be done in C code... */ - movl pmode_cr3, %eax - movl %eax, %cr3 -@@ -131,6 +134,7 @@ wakeup_code: - movl pmode_cr0, %eax - movl %eax, %cr0 - jmp pmode_return -+# include "../../verify_cpu.S" - #else - pushw $0 - pushw trampoline_segment -diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c -index 146a49c..1b5338b 100644 ---- a/arch/x86/kernel/acpi/sleep.c -+++ b/arch/x86/kernel/acpi/sleep.c -@@ -98,8 +98,12 @@ int acpi_suspend_lowlevel(void) - header->trampoline_segment = trampoline_address() >> 4; - #ifdef CONFIG_SMP - stack_start = (unsigned long)temp_stack + sizeof(temp_stack); -+ -+ pax_open_kernel(); - early_gdt_descr.address = - (unsigned long)get_cpu_gdt_table(smp_processor_id()); -+ pax_close_kernel(); -+ - initial_gs = per_cpu_offset(smp_processor_id()); - #endif - initial_code = (unsigned long)wakeup_long64; -diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S -index 7261083..5c12053 100644 ---- a/arch/x86/kernel/acpi/wakeup_32.S -+++ b/arch/x86/kernel/acpi/wakeup_32.S -@@ -30,13 +30,11 @@ wakeup_pmode_return: - # and restore the stack ... but you need gdt for this to work - movl saved_context_esp, %esp - -- movl %cs:saved_magic, %eax -- cmpl $0x12345678, %eax -+ cmpl $0x12345678, saved_magic - jne bogus_magic - - # jump to place where we left off -- movl saved_eip, %eax -- jmp *%eax -+ jmp *(saved_eip) - - bogus_magic: - jmp bogus_magic -diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c -index 1f84794..e23f862 100644 ---- a/arch/x86/kernel/alternative.c -+++ b/arch/x86/kernel/alternative.c -@@ -276,6 +276,13 @@ void __init_or_module apply_alternatives(struct alt_instr *start, - */ - for (a = start; a < end; a++) { - instr = (u8 *)&a->instr_offset + a->instr_offset; -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ instr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR; -+ if (instr < (u8 *)_text || (u8 *)_einittext <= instr) -+ instr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR; -+#endif -+ - replacement = (u8 *)&a->repl_offset + a->repl_offset; - BUG_ON(a->replacementlen > a->instrlen); - BUG_ON(a->instrlen > sizeof(insnbuf)); -@@ -307,10 +314,16 @@ static void alternatives_smp_lock(const s32 *start, const s32 *end, - for (poff = start; poff < end; poff++) { - u8 *ptr = (u8 *)poff + *poff; - -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ ptr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR; -+ if (ptr < (u8 *)_text || (u8 *)_einittext <= ptr) -+ ptr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR; -+#endif -+ - if (!*poff || ptr < text || ptr >= text_end) - continue; - /* turn DS segment override prefix into lock prefix */ -- if (*ptr == 0x3e) -+ if (*ktla_ktva(ptr) == 0x3e) - text_poke(ptr, ((unsigned char []){0xf0}), 1); - }; - mutex_unlock(&text_mutex); -@@ -328,10 +341,16 @@ static void alternatives_smp_unlock(const s32 *start, const s32 *end, - for (poff = start; poff < end; poff++) { - u8 *ptr = (u8 *)poff + *poff; - -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ ptr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR; -+ if (ptr < (u8 *)_text || (u8 *)_einittext <= ptr) -+ ptr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR; -+#endif -+ - if (!*poff || ptr < text || ptr >= text_end) - continue; - /* turn lock prefix into DS segment override prefix */ -- if (*ptr == 0xf0) -+ if (*ktla_ktva(ptr) == 0xf0) - text_poke(ptr, ((unsigned char []){0x3E}), 1); - }; - mutex_unlock(&text_mutex); -@@ -500,7 +519,7 @@ void __init_or_module apply_paravirt(struct paravirt_patch_site *start, - - BUG_ON(p->len > MAX_PATCH_LEN); - /* prep the buffer with the original instructions */ -- memcpy(insnbuf, p->instr, p->len); -+ memcpy(insnbuf, ktla_ktva(p->instr), p->len); - used = pv_init_ops.patch(p->instrtype, p->clobbers, insnbuf, - (unsigned long)p->instr, p->len); - -@@ -568,7 +587,7 @@ void __init alternative_instructions(void) - if (smp_alt_once) - free_init_pages("SMP alternatives", - (unsigned long)__smp_locks, -- (unsigned long)__smp_locks_end); -+ PAGE_ALIGN((unsigned long)__smp_locks_end)); - - restart_nmi(); - } -@@ -585,13 +604,17 @@ void __init alternative_instructions(void) - * instructions. And on the local CPU you need to be protected again NMI or MCE - * handlers seeing an inconsistent instruction while you patch. - */ --void *__init_or_module text_poke_early(void *addr, const void *opcode, -+void *__kprobes text_poke_early(void *addr, const void *opcode, - size_t len) - { - unsigned long flags; - local_irq_save(flags); -- memcpy(addr, opcode, len); -+ -+ pax_open_kernel(); -+ memcpy(ktla_ktva(addr), opcode, len); - sync_core(); -+ pax_close_kernel(); -+ - local_irq_restore(flags); - /* Could also do a CLFLUSH here to speed up CPU recovery; but - that causes hangs on some VIA CPUs. */ -@@ -613,36 +636,22 @@ void *__init_or_module text_poke_early(void *addr, const void *opcode, - */ - void *__kprobes text_poke(void *addr, const void *opcode, size_t len) - { -- unsigned long flags; -- char *vaddr; -+ unsigned char *vaddr = ktla_ktva(addr); - struct page *pages[2]; -- int i; -+ size_t i; - - if (!core_kernel_text((unsigned long)addr)) { -- pages[0] = vmalloc_to_page(addr); -- pages[1] = vmalloc_to_page(addr + PAGE_SIZE); -+ pages[0] = vmalloc_to_page(vaddr); -+ pages[1] = vmalloc_to_page(vaddr + PAGE_SIZE); - } else { -- pages[0] = virt_to_page(addr); -+ pages[0] = virt_to_page(vaddr); - WARN_ON(!PageReserved(pages[0])); -- pages[1] = virt_to_page(addr + PAGE_SIZE); -+ pages[1] = virt_to_page(vaddr + PAGE_SIZE); - } - BUG_ON(!pages[0]); -- local_irq_save(flags); -- set_fixmap(FIX_TEXT_POKE0, page_to_phys(pages[0])); -- if (pages[1]) -- set_fixmap(FIX_TEXT_POKE1, page_to_phys(pages[1])); -- vaddr = (char *)fix_to_virt(FIX_TEXT_POKE0); -- memcpy(&vaddr[(unsigned long)addr & ~PAGE_MASK], opcode, len); -- clear_fixmap(FIX_TEXT_POKE0); -- if (pages[1]) -- clear_fixmap(FIX_TEXT_POKE1); -- local_flush_tlb(); -- sync_core(); -- /* Could also do a CLFLUSH here to speed up CPU recovery; but -- that causes hangs on some VIA CPUs. */ -+ text_poke_early(addr, opcode, len); - for (i = 0; i < len; i++) -- BUG_ON(((char *)addr)[i] != ((char *)opcode)[i]); -- local_irq_restore(flags); -+ BUG_ON((vaddr)[i] != ((const unsigned char *)opcode)[i]); - return addr; - } - -diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c -index edc2448..553e7c5 100644 ---- a/arch/x86/kernel/apic/apic.c -+++ b/arch/x86/kernel/apic/apic.c -@@ -184,7 +184,7 @@ int first_system_vector = 0xfe; - /* - * Debug level, exported for io_apic.c - */ --unsigned int apic_verbosity; -+int apic_verbosity; - - int pic_mode; - -@@ -1917,7 +1917,7 @@ void smp_error_interrupt(struct pt_regs *regs) - apic_write(APIC_ESR, 0); - v1 = apic_read(APIC_ESR); - ack_APIC_irq(); -- atomic_inc(&irq_err_count); -+ atomic_inc_unchecked(&irq_err_count); - - apic_printk(APIC_DEBUG, KERN_DEBUG "APIC error on CPU%d: %02x(%02x)", - smp_processor_id(), v0 , v1); -diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c -index e88300d..cd5a87a 100644 ---- a/arch/x86/kernel/apic/io_apic.c -+++ b/arch/x86/kernel/apic/io_apic.c -@@ -83,7 +83,9 @@ static struct io_apic_ops io_apic_ops = { - - void __init set_io_apic_ops(const struct io_apic_ops *ops) - { -- io_apic_ops = *ops; -+ pax_open_kernel(); -+ memcpy((void*)&io_apic_ops, ops, sizeof io_apic_ops); -+ pax_close_kernel(); - } - - /* -@@ -1135,7 +1137,7 @@ int IO_APIC_get_PCI_irq_vector(int bus, int slot, int pin, - } - EXPORT_SYMBOL(IO_APIC_get_PCI_irq_vector); - --void lock_vector_lock(void) -+void lock_vector_lock(void) __acquires(vector_lock) - { - /* Used to the online set of cpus does not change - * during assign_irq_vector. -@@ -1143,7 +1145,7 @@ void lock_vector_lock(void) - raw_spin_lock(&vector_lock); - } - --void unlock_vector_lock(void) -+void unlock_vector_lock(void) __releases(vector_lock) - { - raw_spin_unlock(&vector_lock); - } -@@ -2549,7 +2551,7 @@ static void ack_apic_edge(struct irq_data *data) - ack_APIC_irq(); - } - --atomic_t irq_mis_count; -+atomic_unchecked_t irq_mis_count; - - #ifdef CONFIG_GENERIC_PENDING_IRQ - static inline bool ioapic_irqd_mask(struct irq_data *data, struct irq_cfg *cfg) -@@ -2667,7 +2669,7 @@ static void ack_apic_level(struct irq_data *data) - * at the cpu. - */ - if (!(v & (1 << (i & 0x1f)))) { -- atomic_inc(&irq_mis_count); -+ atomic_inc_unchecked(&irq_mis_count); - - eoi_ioapic_irq(irq, cfg); - } -diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c -index 459e78c..f037006 100644 ---- a/arch/x86/kernel/apm_32.c -+++ b/arch/x86/kernel/apm_32.c -@@ -410,7 +410,7 @@ static DEFINE_MUTEX(apm_mutex); - * This is for buggy BIOS's that refer to (real mode) segment 0x40 - * even though they are called in protected mode. - */ --static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092, -+static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093, - (unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1); - - static const char driver_version[] = "1.16ac"; /* no spaces */ -@@ -588,7 +588,10 @@ static long __apm_bios_call(void *_call) - BUG_ON(cpu != 0); - gdt = get_cpu_gdt_table(cpu); - save_desc_40 = gdt[0x40 / 8]; -+ -+ pax_open_kernel(); - gdt[0x40 / 8] = bad_bios_desc; -+ pax_close_kernel(); - - apm_irq_save(flags); - APM_DO_SAVE_SEGS; -@@ -597,7 +600,11 @@ static long __apm_bios_call(void *_call) - &call->esi); - APM_DO_RESTORE_SEGS; - apm_irq_restore(flags); -+ -+ pax_open_kernel(); - gdt[0x40 / 8] = save_desc_40; -+ pax_close_kernel(); -+ - put_cpu(); - - return call->eax & 0xff; -@@ -664,7 +671,10 @@ static long __apm_bios_call_simple(void *_call) - BUG_ON(cpu != 0); - gdt = get_cpu_gdt_table(cpu); - save_desc_40 = gdt[0x40 / 8]; -+ -+ pax_open_kernel(); - gdt[0x40 / 8] = bad_bios_desc; -+ pax_close_kernel(); - - apm_irq_save(flags); - APM_DO_SAVE_SEGS; -@@ -672,7 +682,11 @@ static long __apm_bios_call_simple(void *_call) - &call->eax); - APM_DO_RESTORE_SEGS; - apm_irq_restore(flags); -+ -+ pax_open_kernel(); - gdt[0x40 / 8] = save_desc_40; -+ pax_close_kernel(); -+ - put_cpu(); - return error; - } -@@ -2345,12 +2359,15 @@ static int __init apm_init(void) - * code to that CPU. - */ - gdt = get_cpu_gdt_table(0); -+ -+ pax_open_kernel(); - set_desc_base(&gdt[APM_CS >> 3], - (unsigned long)__va((unsigned long)apm_info.bios.cseg << 4)); - set_desc_base(&gdt[APM_CS_16 >> 3], - (unsigned long)__va((unsigned long)apm_info.bios.cseg_16 << 4)); - set_desc_base(&gdt[APM_DS >> 3], - (unsigned long)__va((unsigned long)apm_info.bios.dseg << 4)); -+ pax_close_kernel(); - - proc_create("apm", 0, NULL, &apm_file_ops); - -diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c -index 68de2dc..1f3c720 100644 ---- a/arch/x86/kernel/asm-offsets.c -+++ b/arch/x86/kernel/asm-offsets.c -@@ -33,6 +33,8 @@ void common(void) { - OFFSET(TI_status, thread_info, status); - OFFSET(TI_addr_limit, thread_info, addr_limit); - OFFSET(TI_preempt_count, thread_info, preempt_count); -+ OFFSET(TI_lowest_stack, thread_info, lowest_stack); -+ DEFINE(TI_task_thread_sp0, offsetof(struct task_struct, thread.sp0) - offsetof(struct task_struct, tinfo)); - - BLANK(); - OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx); -@@ -53,8 +55,26 @@ void common(void) { - OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit); - OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0); - OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ OFFSET(PV_CPU_write_cr0, pv_cpu_ops, write_cr0); - #endif - -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ OFFSET(PV_MMU_read_cr3, pv_mmu_ops, read_cr3); -+ OFFSET(PV_MMU_write_cr3, pv_mmu_ops, write_cr3); -+#ifdef CONFIG_X86_64 -+ OFFSET(PV_MMU_set_pgd_batched, pv_mmu_ops, set_pgd_batched); -+#endif -+#endif -+ -+#endif -+ -+ BLANK(); -+ DEFINE(PAGE_SIZE_asm, PAGE_SIZE); -+ DEFINE(PAGE_SHIFT_asm, PAGE_SHIFT); -+ DEFINE(THREAD_SIZE_asm, THREAD_SIZE); -+ - #ifdef CONFIG_XEN - BLANK(); - OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask); -diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c -index 1b4754f..fbb4227 100644 ---- a/arch/x86/kernel/asm-offsets_64.c -+++ b/arch/x86/kernel/asm-offsets_64.c -@@ -76,6 +76,7 @@ int main(void) - BLANK(); - #undef ENTRY - -+ DEFINE(TSS_size, sizeof(struct tss_struct)); - OFFSET(TSS_ist, tss_struct, x86_tss.ist); - BLANK(); - -diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile -index 6ab6aa2..8f71507 100644 ---- a/arch/x86/kernel/cpu/Makefile -+++ b/arch/x86/kernel/cpu/Makefile -@@ -8,10 +8,6 @@ CFLAGS_REMOVE_common.o = -pg - CFLAGS_REMOVE_perf_event.o = -pg - endif - --# Make sure load_percpu_segment has no stackprotector --nostackp := $(call cc-option, -fno-stack-protector) --CFLAGS_common.o := $(nostackp) -- - obj-y := intel_cacheinfo.o scattered.o topology.o - obj-y += proc.o capflags.o powerflags.o common.o - obj-y += vmware.o hypervisor.o sched.o mshyperv.o -diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c -index 146bb62..ac9c74a 100644 ---- a/arch/x86/kernel/cpu/amd.c -+++ b/arch/x86/kernel/cpu/amd.c -@@ -691,7 +691,7 @@ static unsigned int __cpuinit amd_size_cache(struct cpuinfo_x86 *c, - unsigned int size) - { - /* AMD errata T13 (order #21922) */ -- if ((c->x86 == 6)) { -+ if (c->x86 == 6) { - /* Duron Rev A0 */ - if (c->x86_model == 3 && c->x86_mask == 0) - size = 64; -diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c -index cf79302..b1b28ae 100644 ---- a/arch/x86/kernel/cpu/common.c -+++ b/arch/x86/kernel/cpu/common.c -@@ -86,60 +86,6 @@ static const struct cpu_dev __cpuinitconst default_cpu = { - - static const struct cpu_dev *this_cpu __cpuinitdata = &default_cpu; - --DEFINE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page) = { .gdt = { --#ifdef CONFIG_X86_64 -- /* -- * We need valid kernel segments for data and code in long mode too -- * IRET will check the segment types kkeil 2000/10/28 -- * Also sysret mandates a special GDT layout -- * -- * TLS descriptors are currently at a different place compared to i386. -- * Hopefully nobody expects them at a fixed place (Wine?) -- */ -- [GDT_ENTRY_KERNEL32_CS] = GDT_ENTRY_INIT(0xc09b, 0, 0xfffff), -- [GDT_ENTRY_KERNEL_CS] = GDT_ENTRY_INIT(0xa09b, 0, 0xfffff), -- [GDT_ENTRY_KERNEL_DS] = GDT_ENTRY_INIT(0xc093, 0, 0xfffff), -- [GDT_ENTRY_DEFAULT_USER32_CS] = GDT_ENTRY_INIT(0xc0fb, 0, 0xfffff), -- [GDT_ENTRY_DEFAULT_USER_DS] = GDT_ENTRY_INIT(0xc0f3, 0, 0xfffff), -- [GDT_ENTRY_DEFAULT_USER_CS] = GDT_ENTRY_INIT(0xa0fb, 0, 0xfffff), --#else -- [GDT_ENTRY_KERNEL_CS] = GDT_ENTRY_INIT(0xc09a, 0, 0xfffff), -- [GDT_ENTRY_KERNEL_DS] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff), -- [GDT_ENTRY_DEFAULT_USER_CS] = GDT_ENTRY_INIT(0xc0fa, 0, 0xfffff), -- [GDT_ENTRY_DEFAULT_USER_DS] = GDT_ENTRY_INIT(0xc0f2, 0, 0xfffff), -- /* -- * Segments used for calling PnP BIOS have byte granularity. -- * They code segments and data segments have fixed 64k limits, -- * the transfer segment sizes are set at run time. -- */ -- /* 32-bit code */ -- [GDT_ENTRY_PNPBIOS_CS32] = GDT_ENTRY_INIT(0x409a, 0, 0xffff), -- /* 16-bit code */ -- [GDT_ENTRY_PNPBIOS_CS16] = GDT_ENTRY_INIT(0x009a, 0, 0xffff), -- /* 16-bit data */ -- [GDT_ENTRY_PNPBIOS_DS] = GDT_ENTRY_INIT(0x0092, 0, 0xffff), -- /* 16-bit data */ -- [GDT_ENTRY_PNPBIOS_TS1] = GDT_ENTRY_INIT(0x0092, 0, 0), -- /* 16-bit data */ -- [GDT_ENTRY_PNPBIOS_TS2] = GDT_ENTRY_INIT(0x0092, 0, 0), -- /* -- * The APM segments have byte granularity and their bases -- * are set at run time. All have 64k limits. -- */ -- /* 32-bit code */ -- [GDT_ENTRY_APMBIOS_BASE] = GDT_ENTRY_INIT(0x409a, 0, 0xffff), -- /* 16-bit code */ -- [GDT_ENTRY_APMBIOS_BASE+1] = GDT_ENTRY_INIT(0x009a, 0, 0xffff), -- /* data */ -- [GDT_ENTRY_APMBIOS_BASE+2] = GDT_ENTRY_INIT(0x4092, 0, 0xffff), -- -- [GDT_ENTRY_ESPFIX_SS] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff), -- [GDT_ENTRY_PERCPU] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff), -- GDT_STACK_CANARY_INIT --#endif --} }; --EXPORT_PER_CPU_SYMBOL_GPL(gdt_page); -- - static int __init x86_xsave_setup(char *s) - { - setup_clear_cpu_cap(X86_FEATURE_XSAVE); -@@ -374,7 +320,7 @@ void switch_to_new_gdt(int cpu) - { - struct desc_ptr gdt_descr; - -- gdt_descr.address = (long)get_cpu_gdt_table(cpu); -+ gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu); - gdt_descr.size = GDT_SIZE - 1; - load_gdt(&gdt_descr); - /* Reload the per-cpu base */ -@@ -841,6 +787,10 @@ static void __cpuinit identify_cpu(struct cpuinfo_x86 *c) - /* Filter out anything that depends on CPUID levels we don't have */ - filter_cpuid_features(c, true); - -+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)) -+ setup_clear_cpu_cap(X86_FEATURE_SEP); -+#endif -+ - /* If the model name is still unset, do table lookup. */ - if (!c->x86_model_id[0]) { - const char *p; -@@ -1021,10 +971,12 @@ static __init int setup_disablecpuid(char *arg) - } - __setup("clearcpuid=", setup_disablecpuid); - -+DEFINE_PER_CPU(struct thread_info *, current_tinfo) = &init_task.tinfo; -+EXPORT_PER_CPU_SYMBOL(current_tinfo); -+ - #ifdef CONFIG_X86_64 - struct desc_ptr idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) idt_table }; --struct desc_ptr nmi_idt_descr = { NR_VECTORS * 16 - 1, -- (unsigned long) nmi_idt_table }; -+struct desc_ptr nmi_idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) nmi_idt_table }; - - DEFINE_PER_CPU_FIRST(union irq_stack_union, - irq_stack_union) __aligned(PAGE_SIZE); -@@ -1038,7 +990,7 @@ DEFINE_PER_CPU(struct task_struct *, current_task) ____cacheline_aligned = - EXPORT_PER_CPU_SYMBOL(current_task); - - DEFINE_PER_CPU(unsigned long, kernel_stack) = -- (unsigned long)&init_thread_union - KERNEL_STACK_OFFSET + THREAD_SIZE; -+ (unsigned long)&init_thread_union - 16 + THREAD_SIZE; - EXPORT_PER_CPU_SYMBOL(kernel_stack); - - DEFINE_PER_CPU(char *, irq_stack_ptr) = -@@ -1126,7 +1078,7 @@ struct pt_regs * __cpuinit idle_regs(struct pt_regs *regs) - { - memset(regs, 0, sizeof(struct pt_regs)); - regs->fs = __KERNEL_PERCPU; -- regs->gs = __KERNEL_STACK_CANARY; -+ savesegment(gs, regs->gs); - - return regs; - } -@@ -1181,7 +1133,7 @@ void __cpuinit cpu_init(void) - int i; - - cpu = stack_smp_processor_id(); -- t = &per_cpu(init_tss, cpu); -+ t = init_tss + cpu; - oist = &per_cpu(orig_ist, cpu); - - #ifdef CONFIG_NUMA -@@ -1207,7 +1159,7 @@ void __cpuinit cpu_init(void) - switch_to_new_gdt(cpu); - loadsegment(fs, 0); - -- load_idt((const struct desc_ptr *)&idt_descr); -+ load_idt(&idt_descr); - - memset(me->thread.tls_array, 0, GDT_ENTRY_TLS_ENTRIES * 8); - syscall_init(); -@@ -1216,7 +1168,6 @@ void __cpuinit cpu_init(void) - wrmsrl(MSR_KERNEL_GS_BASE, 0); - barrier(); - -- x86_configure_nx(); - if (cpu != 0) - enable_x2apic(); - -@@ -1272,7 +1223,7 @@ void __cpuinit cpu_init(void) - { - int cpu = smp_processor_id(); - struct task_struct *curr = current; -- struct tss_struct *t = &per_cpu(init_tss, cpu); -+ struct tss_struct *t = init_tss + cpu; - struct thread_struct *thread = &curr->thread; - - if (cpumask_test_and_set_cpu(cpu, cpu_initialized_mask)) { -diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c -index 3e6ff6c..54b4992 100644 ---- a/arch/x86/kernel/cpu/intel.c -+++ b/arch/x86/kernel/cpu/intel.c -@@ -174,7 +174,7 @@ static void __cpuinit trap_init_f00f_bug(void) - * Update the IDT descriptor and reload the IDT so that - * it uses the read-only mapped virtual address. - */ -- idt_descr.address = fix_to_virt(FIX_F00F_IDT); -+ idt_descr.address = (struct desc_struct *)fix_to_virt(FIX_F00F_IDT); - load_idt(&idt_descr); - } - #endif -diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c -index 61604ae..98250a5 100644 ---- a/arch/x86/kernel/cpu/mcheck/mce.c -+++ b/arch/x86/kernel/cpu/mcheck/mce.c -@@ -42,6 +42,7 @@ - #include <asm/processor.h> - #include <asm/mce.h> - #include <asm/msr.h> -+#include <asm/local.h> - - #include "mce-internal.h" - -@@ -250,7 +251,7 @@ static void print_mce(struct mce *m) - !(m->mcgstatus & MCG_STATUS_EIPV) ? " !INEXACT!" : "", - m->cs, m->ip); - -- if (m->cs == __KERNEL_CS) -+ if (m->cs == __KERNEL_CS || m->cs == __KERNEXEC_KERNEL_CS) - print_symbol("{%s}", m->ip); - pr_cont("\n"); - } -@@ -283,10 +284,10 @@ static void print_mce(struct mce *m) - - #define PANIC_TIMEOUT 5 /* 5 seconds */ - --static atomic_t mce_paniced; -+static atomic_unchecked_t mce_paniced; - - static int fake_panic; --static atomic_t mce_fake_paniced; -+static atomic_unchecked_t mce_fake_paniced; - - /* Panic in progress. Enable interrupts and wait for final IPI */ - static void wait_for_panic(void) -@@ -310,7 +311,7 @@ static void mce_panic(char *msg, struct mce *final, char *exp) - /* - * Make sure only one CPU runs in machine check panic - */ -- if (atomic_inc_return(&mce_paniced) > 1) -+ if (atomic_inc_return_unchecked(&mce_paniced) > 1) - wait_for_panic(); - barrier(); - -@@ -318,7 +319,7 @@ static void mce_panic(char *msg, struct mce *final, char *exp) - console_verbose(); - } else { - /* Don't log too much for fake panic */ -- if (atomic_inc_return(&mce_fake_paniced) > 1) -+ if (atomic_inc_return_unchecked(&mce_fake_paniced) > 1) - return; - } - /* First print corrected ones that are still unlogged */ -@@ -684,7 +685,7 @@ static int mce_timed_out(u64 *t) - * might have been modified by someone else. - */ - rmb(); -- if (atomic_read(&mce_paniced)) -+ if (atomic_read_unchecked(&mce_paniced)) - wait_for_panic(); - if (!monarch_timeout) - goto out; -@@ -1535,7 +1536,7 @@ static void unexpected_machine_check(struct pt_regs *regs, long error_code) - } - - /* Call the installed machine check handler for this CPU setup. */ --void (*machine_check_vector)(struct pt_regs *, long error_code) = -+void (*machine_check_vector)(struct pt_regs *, long error_code) __read_only = - unexpected_machine_check; - - /* -@@ -1558,7 +1559,9 @@ void __cpuinit mcheck_cpu_init(struct cpuinfo_x86 *c) - return; - } - -+ pax_open_kernel(); - machine_check_vector = do_machine_check; -+ pax_close_kernel(); - - __mcheck_cpu_init_generic(); - __mcheck_cpu_init_vendor(c); -@@ -1572,7 +1575,7 @@ void __cpuinit mcheck_cpu_init(struct cpuinfo_x86 *c) - */ - - static DEFINE_SPINLOCK(mce_chrdev_state_lock); --static int mce_chrdev_open_count; /* #times opened */ -+static local_t mce_chrdev_open_count; /* #times opened */ - static int mce_chrdev_open_exclu; /* already open exclusive? */ - - static int mce_chrdev_open(struct inode *inode, struct file *file) -@@ -1580,7 +1583,7 @@ static int mce_chrdev_open(struct inode *inode, struct file *file) - spin_lock(&mce_chrdev_state_lock); - - if (mce_chrdev_open_exclu || -- (mce_chrdev_open_count && (file->f_flags & O_EXCL))) { -+ (local_read(&mce_chrdev_open_count) && (file->f_flags & O_EXCL))) { - spin_unlock(&mce_chrdev_state_lock); - - return -EBUSY; -@@ -1588,7 +1591,7 @@ static int mce_chrdev_open(struct inode *inode, struct file *file) - - if (file->f_flags & O_EXCL) - mce_chrdev_open_exclu = 1; -- mce_chrdev_open_count++; -+ local_inc(&mce_chrdev_open_count); - - spin_unlock(&mce_chrdev_state_lock); - -@@ -1599,7 +1602,7 @@ static int mce_chrdev_release(struct inode *inode, struct file *file) - { - spin_lock(&mce_chrdev_state_lock); - -- mce_chrdev_open_count--; -+ local_dec(&mce_chrdev_open_count); - mce_chrdev_open_exclu = 0; - - spin_unlock(&mce_chrdev_state_lock); -@@ -2324,7 +2327,7 @@ struct dentry *mce_get_debugfs_dir(void) - static void mce_reset(void) - { - cpu_missing = 0; -- atomic_set(&mce_fake_paniced, 0); -+ atomic_set_unchecked(&mce_fake_paniced, 0); - atomic_set(&mce_executing, 0); - atomic_set(&mce_callin, 0); - atomic_set(&global_nwo, 0); -diff --git a/arch/x86/kernel/cpu/mcheck/p5.c b/arch/x86/kernel/cpu/mcheck/p5.c -index 2d5454c..51987eb 100644 ---- a/arch/x86/kernel/cpu/mcheck/p5.c -+++ b/arch/x86/kernel/cpu/mcheck/p5.c -@@ -11,6 +11,7 @@ - #include <asm/processor.h> - #include <asm/mce.h> - #include <asm/msr.h> -+#include <asm/pgtable.h> - - /* By default disabled */ - int mce_p5_enabled __read_mostly; -@@ -49,7 +50,9 @@ void intel_p5_mcheck_init(struct cpuinfo_x86 *c) - if (!cpu_has(c, X86_FEATURE_MCE)) - return; - -+ pax_open_kernel(); - machine_check_vector = pentium_machine_check; -+ pax_close_kernel(); - /* Make sure the vector pointer is visible before we enable MCEs: */ - wmb(); - -diff --git a/arch/x86/kernel/cpu/mcheck/winchip.c b/arch/x86/kernel/cpu/mcheck/winchip.c -index 2d7998f..17c9de1 100644 ---- a/arch/x86/kernel/cpu/mcheck/winchip.c -+++ b/arch/x86/kernel/cpu/mcheck/winchip.c -@@ -10,6 +10,7 @@ - #include <asm/processor.h> - #include <asm/mce.h> - #include <asm/msr.h> -+#include <asm/pgtable.h> - - /* Machine check handler for WinChip C6: */ - static void winchip_machine_check(struct pt_regs *regs, long error_code) -@@ -23,7 +24,9 @@ void winchip_mcheck_init(struct cpuinfo_x86 *c) - { - u32 lo, hi; - -+ pax_open_kernel(); - machine_check_vector = winchip_machine_check; -+ pax_close_kernel(); - /* Make sure the vector pointer is visible before we enable MCEs: */ - wmb(); - -diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c -index 6b96110..0da73eb 100644 ---- a/arch/x86/kernel/cpu/mtrr/main.c -+++ b/arch/x86/kernel/cpu/mtrr/main.c -@@ -62,7 +62,7 @@ static DEFINE_MUTEX(mtrr_mutex); - u64 size_or_mask, size_and_mask; - static bool mtrr_aps_delayed_init; - --static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM]; -+static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM] __read_only; - - const struct mtrr_ops *mtrr_if; - -diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.h b/arch/x86/kernel/cpu/mtrr/mtrr.h -index df5e41f..816c719 100644 ---- a/arch/x86/kernel/cpu/mtrr/mtrr.h -+++ b/arch/x86/kernel/cpu/mtrr/mtrr.h -@@ -25,7 +25,7 @@ struct mtrr_ops { - int (*validate_add_page)(unsigned long base, unsigned long size, - unsigned int type); - int (*have_wrcomb)(void); --}; -+} __do_const; - - extern int generic_get_free_region(unsigned long base, unsigned long size, - int replace_reg); -diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c -index bb8e034..fb9020b 100644 ---- a/arch/x86/kernel/cpu/perf_event.c -+++ b/arch/x86/kernel/cpu/perf_event.c -@@ -1835,7 +1835,7 @@ perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs) - break; - - perf_callchain_store(entry, frame.return_address); -- fp = frame.next_frame; -+ fp = (const void __force_user *)frame.next_frame; - } - } - -diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c -index 13ad899..f642b9a 100644 ---- a/arch/x86/kernel/crash.c -+++ b/arch/x86/kernel/crash.c -@@ -36,10 +36,8 @@ static void kdump_nmi_callback(int cpu, struct pt_regs *regs) - { - #ifdef CONFIG_X86_32 - struct pt_regs fixed_regs; --#endif - --#ifdef CONFIG_X86_32 -- if (!user_mode_vm(regs)) { -+ if (!user_mode(regs)) { - crash_fixup_ss_esp(&fixed_regs, regs); - regs = &fixed_regs; - } -diff --git a/arch/x86/kernel/doublefault_32.c b/arch/x86/kernel/doublefault_32.c -index 37250fe..bf2ec74 100644 ---- a/arch/x86/kernel/doublefault_32.c -+++ b/arch/x86/kernel/doublefault_32.c -@@ -11,7 +11,7 @@ - - #define DOUBLEFAULT_STACKSIZE (1024) - static unsigned long doublefault_stack[DOUBLEFAULT_STACKSIZE]; --#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE) -+#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE-2) - - #define ptr_ok(x) ((x) > PAGE_OFFSET && (x) < PAGE_OFFSET + MAXMEM) - -@@ -21,7 +21,7 @@ static void doublefault_fn(void) - unsigned long gdt, tss; - - store_gdt(&gdt_desc); -- gdt = gdt_desc.address; -+ gdt = (unsigned long)gdt_desc.address; - - printk(KERN_EMERG "PANIC: double fault, gdt at %08lx [%d bytes]\n", gdt, gdt_desc.size); - -@@ -58,10 +58,10 @@ struct tss_struct doublefault_tss __cacheline_aligned = { - /* 0x2 bit is always set */ - .flags = X86_EFLAGS_SF | 0x2, - .sp = STACK_START, -- .es = __USER_DS, -+ .es = __KERNEL_DS, - .cs = __KERNEL_CS, - .ss = __KERNEL_DS, -- .ds = __USER_DS, -+ .ds = __KERNEL_DS, - .fs = __KERNEL_PERCPU, - - .__cr3 = __pa_nodebug(swapper_pg_dir), -diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c -index 1b81839..0b4e7b0 100644 ---- a/arch/x86/kernel/dumpstack.c -+++ b/arch/x86/kernel/dumpstack.c -@@ -2,6 +2,9 @@ - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs - */ -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+#define __INCLUDED_BY_HIDESYM 1 -+#endif - #include <linux/kallsyms.h> - #include <linux/kprobes.h> - #include <linux/uaccess.h> -@@ -35,16 +38,14 @@ void printk_address(unsigned long address, int reliable) - static void - print_ftrace_graph_addr(unsigned long addr, void *data, - const struct stacktrace_ops *ops, -- struct thread_info *tinfo, int *graph) -+ struct task_struct *task, int *graph) - { -- struct task_struct *task; - unsigned long ret_addr; - int index; - - if (addr != (unsigned long)return_to_handler) - return; - -- task = tinfo->task; - index = task->curr_ret_stack; - - if (!task->ret_stack || index < *graph) -@@ -61,7 +62,7 @@ print_ftrace_graph_addr(unsigned long addr, void *data, - static inline void - print_ftrace_graph_addr(unsigned long addr, void *data, - const struct stacktrace_ops *ops, -- struct thread_info *tinfo, int *graph) -+ struct task_struct *task, int *graph) - { } - #endif - -@@ -72,10 +73,8 @@ print_ftrace_graph_addr(unsigned long addr, void *data, - * severe exception (double fault, nmi, stack fault, debug, mce) hardware stack - */ - --static inline int valid_stack_ptr(struct thread_info *tinfo, -- void *p, unsigned int size, void *end) -+static inline int valid_stack_ptr(void *t, void *p, unsigned int size, void *end) - { -- void *t = tinfo; - if (end) { - if (p < end && p >= (end-THREAD_SIZE)) - return 1; -@@ -86,14 +85,14 @@ static inline int valid_stack_ptr(struct thread_info *tinfo, - } - - unsigned long --print_context_stack(struct thread_info *tinfo, -+print_context_stack(struct task_struct *task, void *stack_start, - unsigned long *stack, unsigned long bp, - const struct stacktrace_ops *ops, void *data, - unsigned long *end, int *graph) - { - struct stack_frame *frame = (struct stack_frame *)bp; - -- while (valid_stack_ptr(tinfo, stack, sizeof(*stack), end)) { -+ while (valid_stack_ptr(stack_start, stack, sizeof(*stack), end)) { - unsigned long addr; - - addr = *stack; -@@ -105,7 +104,7 @@ print_context_stack(struct thread_info *tinfo, - } else { - ops->address(data, addr, 0); - } -- print_ftrace_graph_addr(addr, data, ops, tinfo, graph); -+ print_ftrace_graph_addr(addr, data, ops, task, graph); - } - stack++; - } -@@ -114,7 +113,7 @@ print_context_stack(struct thread_info *tinfo, - EXPORT_SYMBOL_GPL(print_context_stack); - - unsigned long --print_context_stack_bp(struct thread_info *tinfo, -+print_context_stack_bp(struct task_struct *task, void *stack_start, - unsigned long *stack, unsigned long bp, - const struct stacktrace_ops *ops, void *data, - unsigned long *end, int *graph) -@@ -122,7 +121,7 @@ print_context_stack_bp(struct thread_info *tinfo, - struct stack_frame *frame = (struct stack_frame *)bp; - unsigned long *ret_addr = &frame->return_address; - -- while (valid_stack_ptr(tinfo, ret_addr, sizeof(*ret_addr), end)) { -+ while (valid_stack_ptr(stack_start, ret_addr, sizeof(*ret_addr), end)) { - unsigned long addr = *ret_addr; - - if (!__kernel_text_address(addr)) -@@ -131,7 +130,7 @@ print_context_stack_bp(struct thread_info *tinfo, - ops->address(data, addr, 1); - frame = frame->next_frame; - ret_addr = &frame->return_address; -- print_ftrace_graph_addr(addr, data, ops, tinfo, graph); -+ print_ftrace_graph_addr(addr, data, ops, task, graph); - } - - return (unsigned long)frame; -@@ -189,7 +188,7 @@ void dump_stack(void) - - bp = stack_frame(current, NULL); - printk("Pid: %d, comm: %.20s %s %s %.*s\n", -- current->pid, current->comm, print_tainted(), -+ task_pid_nr(current), current->comm, print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); -@@ -225,6 +224,8 @@ unsigned __kprobes long oops_begin(void) - } - EXPORT_SYMBOL_GPL(oops_begin); - -+extern void gr_handle_kernel_exploit(void); -+ - void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr) - { - if (regs && kexec_should_crash(current)) -@@ -246,7 +247,10 @@ void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr) - panic("Fatal exception in interrupt"); - if (panic_on_oops) - panic("Fatal exception"); -- do_exit(signr); -+ -+ gr_handle_kernel_exploit(); -+ -+ do_group_exit(signr); - } - - int __kprobes __die(const char *str, struct pt_regs *regs, long err) -@@ -273,7 +277,7 @@ int __kprobes __die(const char *str, struct pt_regs *regs, long err) - - show_registers(regs); - #ifdef CONFIG_X86_32 -- if (user_mode_vm(regs)) { -+ if (user_mode(regs)) { - sp = regs->sp; - ss = regs->ss & 0xffff; - } else { -@@ -301,7 +305,7 @@ void die(const char *str, struct pt_regs *regs, long err) - unsigned long flags = oops_begin(); - int sig = SIGSEGV; - -- if (!user_mode_vm(regs)) -+ if (!user_mode(regs)) - report_bug(regs->ip, regs); - - if (__die(str, regs, err)) -diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c -index 88ec912..e95e935 100644 ---- a/arch/x86/kernel/dumpstack_32.c -+++ b/arch/x86/kernel/dumpstack_32.c -@@ -38,15 +38,13 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, - bp = stack_frame(task, regs); - - for (;;) { -- struct thread_info *context; -+ void *stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1)); - -- context = (struct thread_info *) -- ((unsigned long)stack & (~(THREAD_SIZE - 1))); -- bp = ops->walk_stack(context, stack, bp, ops, data, NULL, &graph); -+ bp = ops->walk_stack(task, stack_start, stack, bp, ops, data, NULL, &graph); - -- stack = (unsigned long *)context->previous_esp; -- if (!stack) -+ if (stack_start == task_stack_page(task)) - break; -+ stack = *(unsigned long **)stack_start; - if (ops->stack(data, "IRQ") < 0) - break; - touch_nmi_watchdog(); -@@ -87,7 +85,7 @@ void show_registers(struct pt_regs *regs) - int i; - - print_modules(); -- __show_regs(regs, !user_mode_vm(regs)); -+ __show_regs(regs, !user_mode(regs)); - - printk(KERN_EMERG "Process %.*s (pid: %d, ti=%p task=%p task.ti=%p)\n", - TASK_COMM_LEN, current->comm, task_pid_nr(current), -@@ -96,21 +94,22 @@ void show_registers(struct pt_regs *regs) - * When in-kernel, we also print out the stack and code at the - * time of the fault.. - */ -- if (!user_mode_vm(regs)) { -+ if (!user_mode(regs)) { - unsigned int code_prologue = code_bytes * 43 / 64; - unsigned int code_len = code_bytes; - unsigned char c; - u8 *ip; -+ unsigned long cs_base = get_desc_base(&get_cpu_gdt_table(smp_processor_id())[(0xffff & regs->cs) >> 3]); - - printk(KERN_EMERG "Stack:\n"); - show_stack_log_lvl(NULL, regs, &regs->sp, 0, KERN_EMERG); - - printk(KERN_EMERG "Code: "); - -- ip = (u8 *)regs->ip - code_prologue; -+ ip = (u8 *)regs->ip - code_prologue + cs_base; - if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) { - /* try starting at IP */ -- ip = (u8 *)regs->ip; -+ ip = (u8 *)regs->ip + cs_base; - code_len = code_len - code_prologue + 1; - } - for (i = 0; i < code_len; i++, ip++) { -@@ -119,7 +118,7 @@ void show_registers(struct pt_regs *regs) - printk(KERN_CONT " Bad EIP value."); - break; - } -- if (ip == (u8 *)regs->ip) -+ if (ip == (u8 *)regs->ip + cs_base) - printk(KERN_CONT "<%02x> ", c); - else - printk(KERN_CONT "%02x ", c); -@@ -132,6 +131,7 @@ int is_valid_bugaddr(unsigned long ip) - { - unsigned short ud2; - -+ ip = ktla_ktva(ip); - if (ip < PAGE_OFFSET) - return 0; - if (probe_kernel_address((unsigned short *)ip, ud2)) -@@ -139,3 +139,15 @@ int is_valid_bugaddr(unsigned long ip) - - return ud2 == 0x0b0f; - } -+ -+#ifdef CONFIG_PAX_MEMORY_STACKLEAK -+void pax_check_alloca(unsigned long size) -+{ -+ unsigned long sp = (unsigned long)&sp, stack_left; -+ -+ /* all kernel stacks are of the same size */ -+ stack_left = sp & (THREAD_SIZE - 1); -+ BUG_ON(stack_left < 256 || size >= stack_left - 256); -+} -+EXPORT_SYMBOL(pax_check_alloca); -+#endif -diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c -index 17107bd..9623722 100644 ---- a/arch/x86/kernel/dumpstack_64.c -+++ b/arch/x86/kernel/dumpstack_64.c -@@ -119,9 +119,9 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, - unsigned long *irq_stack_end = - (unsigned long *)per_cpu(irq_stack_ptr, cpu); - unsigned used = 0; -- struct thread_info *tinfo; - int graph = 0; - unsigned long dummy; -+ void *stack_start; - - if (!task) - task = current; -@@ -142,10 +142,10 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, - * current stack address. If the stacks consist of nested - * exceptions - */ -- tinfo = task_thread_info(task); - for (;;) { - char *id; - unsigned long *estack_end; -+ - estack_end = in_exception_stack(cpu, (unsigned long)stack, - &used, &id); - -@@ -153,7 +153,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, - if (ops->stack(data, id) < 0) - break; - -- bp = ops->walk_stack(tinfo, stack, bp, ops, -+ bp = ops->walk_stack(task, estack_end - EXCEPTION_STKSZ, stack, bp, ops, - data, estack_end, &graph); - ops->stack(data, "<EOE>"); - /* -@@ -161,6 +161,8 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, - * second-to-last pointer (index -2 to end) in the - * exception stack: - */ -+ if ((u16)estack_end[-1] != __KERNEL_DS) -+ goto out; - stack = (unsigned long *) estack_end[-2]; - continue; - } -@@ -172,7 +174,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, - if (in_irq_stack(stack, irq_stack, irq_stack_end)) { - if (ops->stack(data, "IRQ") < 0) - break; -- bp = ops->walk_stack(tinfo, stack, bp, -+ bp = ops->walk_stack(task, irq_stack, stack, bp, - ops, data, irq_stack_end, &graph); - /* - * We link to the next stack (which would be -@@ -191,7 +193,9 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, - /* - * This handles the process stack: - */ -- bp = ops->walk_stack(tinfo, stack, bp, ops, data, NULL, &graph); -+ stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1)); -+ bp = ops->walk_stack(task, stack_start, stack, bp, ops, data, NULL, &graph); -+out: - put_cpu(); - } - EXPORT_SYMBOL(dump_trace); -@@ -305,3 +309,50 @@ int is_valid_bugaddr(unsigned long ip) - - return ud2 == 0x0b0f; - } -+ -+#ifdef CONFIG_PAX_MEMORY_STACKLEAK -+void pax_check_alloca(unsigned long size) -+{ -+ unsigned long sp = (unsigned long)&sp, stack_start, stack_end; -+ unsigned cpu, used; -+ char *id; -+ -+ /* check the process stack first */ -+ stack_start = (unsigned long)task_stack_page(current); -+ stack_end = stack_start + THREAD_SIZE; -+ if (likely(stack_start <= sp && sp < stack_end)) { -+ unsigned long stack_left = sp & (THREAD_SIZE - 1); -+ BUG_ON(stack_left < 256 || size >= stack_left - 256); -+ return; -+ } -+ -+ cpu = get_cpu(); -+ -+ /* check the irq stacks */ -+ stack_end = (unsigned long)per_cpu(irq_stack_ptr, cpu); -+ stack_start = stack_end - IRQ_STACK_SIZE; -+ if (stack_start <= sp && sp < stack_end) { -+ unsigned long stack_left = sp & (IRQ_STACK_SIZE - 1); -+ put_cpu(); -+ BUG_ON(stack_left < 256 || size >= stack_left - 256); -+ return; -+ } -+ -+ /* check the exception stacks */ -+ used = 0; -+ stack_end = (unsigned long)in_exception_stack(cpu, sp, &used, &id); -+ stack_start = stack_end - EXCEPTION_STKSZ; -+ if (stack_end && stack_start <= sp && sp < stack_end) { -+ unsigned long stack_left = sp & (EXCEPTION_STKSZ - 1); -+ put_cpu(); -+ BUG_ON(stack_left < 256 || size >= stack_left - 256); -+ return; -+ } -+ -+ put_cpu(); -+ -+ /* unknown stack */ -+ BUG(); -+} -+EXPORT_SYMBOL(pax_check_alloca); -+#endif -diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c -index 9b9f18b..9fcaa04 100644 ---- a/arch/x86/kernel/early_printk.c -+++ b/arch/x86/kernel/early_printk.c -@@ -7,6 +7,7 @@ - #include <linux/pci_regs.h> - #include <linux/pci_ids.h> - #include <linux/errno.h> -+#include <linux/sched.h> - #include <asm/io.h> - #include <asm/processor.h> - #include <asm/fcntl.h> -diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S -index 7b784f4..db6b628 100644 ---- a/arch/x86/kernel/entry_32.S -+++ b/arch/x86/kernel/entry_32.S -@@ -179,13 +179,146 @@ - /*CFI_REL_OFFSET gs, PT_GS*/ - .endm - .macro SET_KERNEL_GS reg -+ -+#ifdef CONFIG_CC_STACKPROTECTOR - movl $(__KERNEL_STACK_CANARY), \reg -+#elif defined(CONFIG_PAX_MEMORY_UDEREF) -+ movl $(__USER_DS), \reg -+#else -+ xorl \reg, \reg -+#endif -+ - movl \reg, %gs - .endm - - #endif /* CONFIG_X86_32_LAZY_GS */ - --.macro SAVE_ALL -+.macro pax_enter_kernel -+#ifdef CONFIG_PAX_KERNEXEC -+ call pax_enter_kernel -+#endif -+.endm -+ -+.macro pax_exit_kernel -+#ifdef CONFIG_PAX_KERNEXEC -+ call pax_exit_kernel -+#endif -+.endm -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ENTRY(pax_enter_kernel) -+#ifdef CONFIG_PARAVIRT -+ pushl %eax -+ pushl %ecx -+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0) -+ mov %eax, %esi -+#else -+ mov %cr0, %esi -+#endif -+ bts $16, %esi -+ jnc 1f -+ mov %cs, %esi -+ cmp $__KERNEL_CS, %esi -+ jz 3f -+ ljmp $__KERNEL_CS, $3f -+1: ljmp $__KERNEXEC_KERNEL_CS, $2f -+2: -+#ifdef CONFIG_PARAVIRT -+ mov %esi, %eax -+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0) -+#else -+ mov %esi, %cr0 -+#endif -+3: -+#ifdef CONFIG_PARAVIRT -+ popl %ecx -+ popl %eax -+#endif -+ ret -+ENDPROC(pax_enter_kernel) -+ -+ENTRY(pax_exit_kernel) -+#ifdef CONFIG_PARAVIRT -+ pushl %eax -+ pushl %ecx -+#endif -+ mov %cs, %esi -+ cmp $__KERNEXEC_KERNEL_CS, %esi -+ jnz 2f -+#ifdef CONFIG_PARAVIRT -+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0); -+ mov %eax, %esi -+#else -+ mov %cr0, %esi -+#endif -+ btr $16, %esi -+ ljmp $__KERNEL_CS, $1f -+1: -+#ifdef CONFIG_PARAVIRT -+ mov %esi, %eax -+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0); -+#else -+ mov %esi, %cr0 -+#endif -+2: -+#ifdef CONFIG_PARAVIRT -+ popl %ecx -+ popl %eax -+#endif -+ ret -+ENDPROC(pax_exit_kernel) -+#endif -+ -+.macro pax_erase_kstack -+#ifdef CONFIG_PAX_MEMORY_STACKLEAK -+ call pax_erase_kstack -+#endif -+.endm -+ -+#ifdef CONFIG_PAX_MEMORY_STACKLEAK -+/* -+ * ebp: thread_info -+ * ecx, edx: can be clobbered -+ */ -+ENTRY(pax_erase_kstack) -+ pushl %edi -+ pushl %eax -+ -+ mov TI_lowest_stack(%ebp), %edi -+ mov $-0xBEEF, %eax -+ std -+ -+1: mov %edi, %ecx -+ and $THREAD_SIZE_asm - 1, %ecx -+ shr $2, %ecx -+ repne scasl -+ jecxz 2f -+ -+ cmp $2*16, %ecx -+ jc 2f -+ -+ mov $2*16, %ecx -+ repe scasl -+ jecxz 2f -+ jne 1b -+ -+2: cld -+ mov %esp, %ecx -+ sub %edi, %ecx -+ shr $2, %ecx -+ rep stosl -+ -+ mov TI_task_thread_sp0(%ebp), %edi -+ sub $128, %edi -+ mov %edi, TI_lowest_stack(%ebp) -+ -+ popl %eax -+ popl %edi -+ ret -+ENDPROC(pax_erase_kstack) -+#endif -+ -+.macro __SAVE_ALL _DS - cld - PUSH_GS - pushl_cfi %fs -@@ -208,7 +341,7 @@ - CFI_REL_OFFSET ecx, 0 - pushl_cfi %ebx - CFI_REL_OFFSET ebx, 0 -- movl $(__USER_DS), %edx -+ movl $\_DS, %edx - movl %edx, %ds - movl %edx, %es - movl $(__KERNEL_PERCPU), %edx -@@ -216,6 +349,15 @@ - SET_KERNEL_GS %edx - .endm - -+.macro SAVE_ALL -+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF) -+ __SAVE_ALL __KERNEL_DS -+ pax_enter_kernel -+#else -+ __SAVE_ALL __USER_DS -+#endif -+.endm -+ - .macro RESTORE_INT_REGS - popl_cfi %ebx - CFI_RESTORE ebx -@@ -301,7 +443,7 @@ ENTRY(ret_from_fork) - popfl_cfi - jmp syscall_exit - CFI_ENDPROC --END(ret_from_fork) -+ENDPROC(ret_from_fork) - - /* - * Interrupt exit functions should be protected against kprobes -@@ -335,7 +477,15 @@ resume_userspace_sig: - andl $SEGMENT_RPL_MASK, %eax - #endif - cmpl $USER_RPL, %eax -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ jae resume_userspace -+ -+ pax_exit_kernel -+ jmp resume_kernel -+#else - jb resume_kernel # not returning to v8086 or userspace -+#endif - - ENTRY(resume_userspace) - LOCKDEP_SYS_EXIT -@@ -347,8 +497,8 @@ ENTRY(resume_userspace) - andl $_TIF_WORK_MASK, %ecx # is there any work to be done on - # int/exception return? - jne work_pending -- jmp restore_all --END(ret_from_exception) -+ jmp restore_all_pax -+ENDPROC(ret_from_exception) - - #ifdef CONFIG_PREEMPT - ENTRY(resume_kernel) -@@ -363,7 +513,7 @@ need_resched: - jz restore_all - call preempt_schedule_irq - jmp need_resched --END(resume_kernel) -+ENDPROC(resume_kernel) - #endif - CFI_ENDPROC - /* -@@ -397,23 +547,34 @@ sysenter_past_esp: - /*CFI_REL_OFFSET cs, 0*/ - /* - * Push current_thread_info()->sysenter_return to the stack. -- * A tiny bit of offset fixup is necessary - 4*4 means the 4 words -- * pushed above; +8 corresponds to copy_thread's esp0 setting. - */ -- pushl_cfi ((TI_sysenter_return)-THREAD_SIZE+8+4*4)(%esp) -+ pushl_cfi $0 - CFI_REL_OFFSET eip, 0 - - pushl_cfi %eax - SAVE_ALL -+ GET_THREAD_INFO(%ebp) -+ movl TI_sysenter_return(%ebp),%ebp -+ movl %ebp,PT_EIP(%esp) - ENABLE_INTERRUPTS(CLBR_NONE) - - /* - * Load the potential sixth argument from user stack. - * Careful about security. - */ -+ movl PT_OLDESP(%esp),%ebp -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ mov PT_OLDSS(%esp),%ds -+1: movl %ds:(%ebp),%ebp -+ push %ss -+ pop %ds -+#else - cmpl $__PAGE_OFFSET-3,%ebp - jae syscall_fault - 1: movl (%ebp),%ebp -+#endif -+ - movl %ebp,PT_EBP(%esp) - .section __ex_table,"a" - .align 4 -@@ -436,12 +597,24 @@ sysenter_do_call: - testl $_TIF_ALLWORK_MASK, %ecx - jne sysexit_audit - sysenter_exit: -+ -+#ifdef CONFIG_PAX_RANDKSTACK -+ pushl_cfi %eax -+ movl %esp, %eax -+ call pax_randomize_kstack -+ popl_cfi %eax -+#endif -+ -+ pax_erase_kstack -+ - /* if something modifies registers it must also disable sysexit */ - movl PT_EIP(%esp), %edx - movl PT_OLDESP(%esp), %ecx - xorl %ebp,%ebp - TRACE_IRQS_ON - 1: mov PT_FS(%esp), %fs -+2: mov PT_DS(%esp), %ds -+3: mov PT_ES(%esp), %es - PTGS_TO_GS - ENABLE_INTERRUPTS_SYSEXIT - -@@ -458,6 +631,9 @@ sysenter_audit: - movl %eax,%edx /* 2nd arg: syscall number */ - movl $AUDIT_ARCH_I386,%eax /* 1st arg: audit arch */ - call __audit_syscall_entry -+ -+ pax_erase_kstack -+ - pushl_cfi %ebx - movl PT_EAX(%esp),%eax /* reload syscall number */ - jmp sysenter_do_call -@@ -483,11 +659,17 @@ sysexit_audit: - - CFI_ENDPROC - .pushsection .fixup,"ax" --2: movl $0,PT_FS(%esp) -+4: movl $0,PT_FS(%esp) -+ jmp 1b -+5: movl $0,PT_DS(%esp) -+ jmp 1b -+6: movl $0,PT_ES(%esp) - jmp 1b - .section __ex_table,"a" - .align 4 -- .long 1b,2b -+ .long 1b,4b -+ .long 2b,5b -+ .long 3b,6b - .popsection - PTGS_TO_GS_EX - ENDPROC(ia32_sysenter_target) -@@ -520,6 +702,15 @@ syscall_exit: - testl $_TIF_ALLWORK_MASK, %ecx # current->work - jne syscall_exit_work - -+restore_all_pax: -+ -+#ifdef CONFIG_PAX_RANDKSTACK -+ movl %esp, %eax -+ call pax_randomize_kstack -+#endif -+ -+ pax_erase_kstack -+ - restore_all: - TRACE_IRQS_IRET - restore_all_notrace: -@@ -579,14 +770,34 @@ ldt_ss: - * compensating for the offset by changing to the ESPFIX segment with - * a base address that matches for the difference. - */ --#define GDT_ESPFIX_SS PER_CPU_VAR(gdt_page) + (GDT_ENTRY_ESPFIX_SS * 8) -+#define GDT_ESPFIX_SS (GDT_ENTRY_ESPFIX_SS * 8)(%ebx) - mov %esp, %edx /* load kernel esp */ - mov PT_OLDESP(%esp), %eax /* load userspace esp */ - mov %dx, %ax /* eax: new kernel esp */ - sub %eax, %edx /* offset (low word is 0) */ -+#ifdef CONFIG_SMP -+ movl PER_CPU_VAR(cpu_number), %ebx -+ shll $PAGE_SHIFT_asm, %ebx -+ addl $cpu_gdt_table, %ebx -+#else -+ movl $cpu_gdt_table, %ebx -+#endif - shr $16, %edx -- mov %dl, GDT_ESPFIX_SS + 4 /* bits 16..23 */ -- mov %dh, GDT_ESPFIX_SS + 7 /* bits 24..31 */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ mov %cr0, %esi -+ btr $16, %esi -+ mov %esi, %cr0 -+#endif -+ -+ mov %dl, 4 + GDT_ESPFIX_SS /* bits 16..23 */ -+ mov %dh, 7 + GDT_ESPFIX_SS /* bits 24..31 */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ bts $16, %esi -+ mov %esi, %cr0 -+#endif -+ - pushl_cfi $__ESPFIX_SS - pushl_cfi %eax /* new kernel esp */ - /* Disable interrupts, but do not irqtrace this section: we -@@ -615,38 +826,30 @@ work_resched: - movl TI_flags(%ebp), %ecx - andl $_TIF_WORK_MASK, %ecx # is there any work to be done other - # than syscall tracing? -- jz restore_all -+ jz restore_all_pax - testb $_TIF_NEED_RESCHED, %cl - jnz work_resched - - work_notifysig: # deal with pending signals and - # notify-resume requests -+ movl %esp, %eax - #ifdef CONFIG_VM86 - testl $X86_EFLAGS_VM, PT_EFLAGS(%esp) -- movl %esp, %eax -- jne work_notifysig_v86 # returning to kernel-space or -+ jz 1f # returning to kernel-space or - # vm86-space -- TRACE_IRQS_ON -- ENABLE_INTERRUPTS(CLBR_NONE) -- xorl %edx, %edx -- call do_notify_resume -- jmp resume_userspace_sig - -- ALIGN --work_notifysig_v86: - pushl_cfi %ecx # save ti_flags for do_notify_resume - call save_v86_state # %eax contains pt_regs pointer - popl_cfi %ecx - movl %eax, %esp --#else -- movl %esp, %eax -+1: - #endif - TRACE_IRQS_ON - ENABLE_INTERRUPTS(CLBR_NONE) - xorl %edx, %edx - call do_notify_resume - jmp resume_userspace_sig --END(work_pending) -+ENDPROC(work_pending) - - # perform syscall exit tracing - ALIGN -@@ -654,11 +857,14 @@ syscall_trace_entry: - movl $-ENOSYS,PT_EAX(%esp) - movl %esp, %eax - call syscall_trace_enter -+ -+ pax_erase_kstack -+ - /* What it returned is what we'll actually use. */ - cmpl $(NR_syscalls), %eax - jnae syscall_call - jmp syscall_exit --END(syscall_trace_entry) -+ENDPROC(syscall_trace_entry) - - # perform syscall exit tracing - ALIGN -@@ -671,20 +877,24 @@ syscall_exit_work: - movl %esp, %eax - call syscall_trace_leave - jmp resume_userspace --END(syscall_exit_work) -+ENDPROC(syscall_exit_work) - CFI_ENDPROC - - RING0_INT_FRAME # can't unwind into user space anyway - syscall_fault: -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ push %ss -+ pop %ds -+#endif - GET_THREAD_INFO(%ebp) - movl $-EFAULT,PT_EAX(%esp) - jmp resume_userspace --END(syscall_fault) -+ENDPROC(syscall_fault) - - syscall_badsys: - movl $-ENOSYS,PT_EAX(%esp) - jmp resume_userspace --END(syscall_badsys) -+ENDPROC(syscall_badsys) - CFI_ENDPROC - /* - * End of kprobes section -@@ -756,6 +966,36 @@ ENTRY(ptregs_clone) - CFI_ENDPROC - ENDPROC(ptregs_clone) - -+ ALIGN; -+ENTRY(kernel_execve) -+ CFI_STARTPROC -+ pushl_cfi %ebp -+ sub $PT_OLDSS+4,%esp -+ pushl_cfi %edi -+ pushl_cfi %ecx -+ pushl_cfi %eax -+ lea 3*4(%esp),%edi -+ mov $PT_OLDSS/4+1,%ecx -+ xorl %eax,%eax -+ rep stosl -+ popl_cfi %eax -+ popl_cfi %ecx -+ popl_cfi %edi -+ movl $X86_EFLAGS_IF,PT_EFLAGS(%esp) -+ pushl_cfi %esp -+ call sys_execve -+ add $4,%esp -+ CFI_ADJUST_CFA_OFFSET -4 -+ GET_THREAD_INFO(%ebp) -+ test %eax,%eax -+ jz syscall_exit -+ add $PT_OLDSS+4,%esp -+ CFI_ADJUST_CFA_OFFSET -PT_OLDSS-4 -+ popl_cfi %ebp -+ ret -+ CFI_ENDPROC -+ENDPROC(kernel_execve) -+ - .macro FIXUP_ESPFIX_STACK - /* - * Switch back for ESPFIX stack to the normal zerobased stack -@@ -765,8 +1005,15 @@ ENDPROC(ptregs_clone) - * normal stack and adjusts ESP with the matching offset. - */ - /* fixup the stack */ -- mov GDT_ESPFIX_SS + 4, %al /* bits 16..23 */ -- mov GDT_ESPFIX_SS + 7, %ah /* bits 24..31 */ -+#ifdef CONFIG_SMP -+ movl PER_CPU_VAR(cpu_number), %ebx -+ shll $PAGE_SHIFT_asm, %ebx -+ addl $cpu_gdt_table, %ebx -+#else -+ movl $cpu_gdt_table, %ebx -+#endif -+ mov 4 + GDT_ESPFIX_SS, %al /* bits 16..23 */ -+ mov 7 + GDT_ESPFIX_SS, %ah /* bits 24..31 */ - shl $16, %eax - addl %esp, %eax /* the adjusted stack pointer */ - pushl_cfi $__KERNEL_DS -@@ -819,7 +1066,7 @@ vector=vector+1 - .endr - 2: jmp common_interrupt - .endr --END(irq_entries_start) -+ENDPROC(irq_entries_start) - - .previous - END(interrupt) -@@ -867,7 +1114,7 @@ ENTRY(coprocessor_error) - pushl_cfi $do_coprocessor_error - jmp error_code - CFI_ENDPROC --END(coprocessor_error) -+ENDPROC(coprocessor_error) - - ENTRY(simd_coprocessor_error) - RING0_INT_FRAME -@@ -888,7 +1135,7 @@ ENTRY(simd_coprocessor_error) - #endif - jmp error_code - CFI_ENDPROC --END(simd_coprocessor_error) -+ENDPROC(simd_coprocessor_error) - - ENTRY(device_not_available) - RING0_INT_FRAME -@@ -896,7 +1143,7 @@ ENTRY(device_not_available) - pushl_cfi $do_device_not_available - jmp error_code - CFI_ENDPROC --END(device_not_available) -+ENDPROC(device_not_available) - - #ifdef CONFIG_PARAVIRT - ENTRY(native_iret) -@@ -905,12 +1152,12 @@ ENTRY(native_iret) - .align 4 - .long native_iret, iret_exc - .previous --END(native_iret) -+ENDPROC(native_iret) - - ENTRY(native_irq_enable_sysexit) - sti - sysexit --END(native_irq_enable_sysexit) -+ENDPROC(native_irq_enable_sysexit) - #endif - - ENTRY(overflow) -@@ -919,7 +1166,7 @@ ENTRY(overflow) - pushl_cfi $do_overflow - jmp error_code - CFI_ENDPROC --END(overflow) -+ENDPROC(overflow) - - ENTRY(bounds) - RING0_INT_FRAME -@@ -927,7 +1174,7 @@ ENTRY(bounds) - pushl_cfi $do_bounds - jmp error_code - CFI_ENDPROC --END(bounds) -+ENDPROC(bounds) - - ENTRY(invalid_op) - RING0_INT_FRAME -@@ -935,7 +1182,7 @@ ENTRY(invalid_op) - pushl_cfi $do_invalid_op - jmp error_code - CFI_ENDPROC --END(invalid_op) -+ENDPROC(invalid_op) - - ENTRY(coprocessor_segment_overrun) - RING0_INT_FRAME -@@ -943,35 +1190,35 @@ ENTRY(coprocessor_segment_overrun) - pushl_cfi $do_coprocessor_segment_overrun - jmp error_code - CFI_ENDPROC --END(coprocessor_segment_overrun) -+ENDPROC(coprocessor_segment_overrun) - - ENTRY(invalid_TSS) - RING0_EC_FRAME - pushl_cfi $do_invalid_TSS - jmp error_code - CFI_ENDPROC --END(invalid_TSS) -+ENDPROC(invalid_TSS) - - ENTRY(segment_not_present) - RING0_EC_FRAME - pushl_cfi $do_segment_not_present - jmp error_code - CFI_ENDPROC --END(segment_not_present) -+ENDPROC(segment_not_present) - - ENTRY(stack_segment) - RING0_EC_FRAME - pushl_cfi $do_stack_segment - jmp error_code - CFI_ENDPROC --END(stack_segment) -+ENDPROC(stack_segment) - - ENTRY(alignment_check) - RING0_EC_FRAME - pushl_cfi $do_alignment_check - jmp error_code - CFI_ENDPROC --END(alignment_check) -+ENDPROC(alignment_check) - - ENTRY(divide_error) - RING0_INT_FRAME -@@ -979,7 +1226,7 @@ ENTRY(divide_error) - pushl_cfi $do_divide_error - jmp error_code - CFI_ENDPROC --END(divide_error) -+ENDPROC(divide_error) - - #ifdef CONFIG_X86_MCE - ENTRY(machine_check) -@@ -988,7 +1235,7 @@ ENTRY(machine_check) - pushl_cfi machine_check_vector - jmp error_code - CFI_ENDPROC --END(machine_check) -+ENDPROC(machine_check) - #endif - - ENTRY(spurious_interrupt_bug) -@@ -997,7 +1244,7 @@ ENTRY(spurious_interrupt_bug) - pushl_cfi $do_spurious_interrupt_bug - jmp error_code - CFI_ENDPROC --END(spurious_interrupt_bug) -+ENDPROC(spurious_interrupt_bug) - /* - * End of kprobes section - */ -@@ -1112,7 +1359,7 @@ BUILD_INTERRUPT3(xen_hvm_callback_vector, XEN_HVM_EVTCHN_CALLBACK, - - ENTRY(mcount) - ret --END(mcount) -+ENDPROC(mcount) - - ENTRY(ftrace_caller) - cmpl $0, function_trace_stop -@@ -1141,7 +1388,7 @@ ftrace_graph_call: - .globl ftrace_stub - ftrace_stub: - ret --END(ftrace_caller) -+ENDPROC(ftrace_caller) - - #else /* ! CONFIG_DYNAMIC_FTRACE */ - -@@ -1177,7 +1424,7 @@ trace: - popl %ecx - popl %eax - jmp ftrace_stub --END(mcount) -+ENDPROC(mcount) - #endif /* CONFIG_DYNAMIC_FTRACE */ - #endif /* CONFIG_FUNCTION_TRACER */ - -@@ -1198,7 +1445,7 @@ ENTRY(ftrace_graph_caller) - popl %ecx - popl %eax - ret --END(ftrace_graph_caller) -+ENDPROC(ftrace_graph_caller) - - .globl return_to_handler - return_to_handler: -@@ -1253,15 +1500,18 @@ error_code: - movl $-1, PT_ORIG_EAX(%esp) # no syscall to restart - REG_TO_PTGS %ecx - SET_KERNEL_GS %ecx -- movl $(__USER_DS), %ecx -+ movl $(__KERNEL_DS), %ecx - movl %ecx, %ds - movl %ecx, %es -+ -+ pax_enter_kernel -+ - TRACE_IRQS_OFF - movl %esp,%eax # pt_regs pointer - call *%edi - jmp ret_from_exception - CFI_ENDPROC --END(page_fault) -+ENDPROC(page_fault) - - /* - * Debug traps and NMI can happen at the one SYSENTER instruction -@@ -1303,7 +1553,7 @@ debug_stack_correct: - call do_debug - jmp ret_from_exception - CFI_ENDPROC --END(debug) -+ENDPROC(debug) - - /* - * NMI is doubly nasty. It can happen _while_ we're handling -@@ -1340,6 +1590,9 @@ nmi_stack_correct: - xorl %edx,%edx # zero error code - movl %esp,%eax # pt_regs pointer - call do_nmi -+ -+ pax_exit_kernel -+ - jmp restore_all_notrace - CFI_ENDPROC - -@@ -1376,12 +1629,15 @@ nmi_espfix_stack: - FIXUP_ESPFIX_STACK # %eax == %esp - xorl %edx,%edx # zero error code - call do_nmi -+ -+ pax_exit_kernel -+ - RESTORE_REGS - lss 12+4(%esp), %esp # back to espfix stack - CFI_ADJUST_CFA_OFFSET -24 - jmp irq_return - CFI_ENDPROC --END(nmi) -+ENDPROC(nmi) - - ENTRY(int3) - RING0_INT_FRAME -@@ -1393,14 +1649,14 @@ ENTRY(int3) - call do_int3 - jmp ret_from_exception - CFI_ENDPROC --END(int3) -+ENDPROC(int3) - - ENTRY(general_protection) - RING0_EC_FRAME - pushl_cfi $do_general_protection - jmp error_code - CFI_ENDPROC --END(general_protection) -+ENDPROC(general_protection) - - #ifdef CONFIG_KVM_GUEST - ENTRY(async_page_fault) -@@ -1408,7 +1664,7 @@ ENTRY(async_page_fault) - pushl_cfi $do_async_page_fault - jmp error_code - CFI_ENDPROC --END(async_page_fault) -+ENDPROC(async_page_fault) - #endif - - /* -diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S -index cdc79b5..4710a75 100644 ---- a/arch/x86/kernel/entry_64.S -+++ b/arch/x86/kernel/entry_64.S -@@ -56,6 +56,8 @@ - #include <asm/ftrace.h> - #include <asm/percpu.h> - #include <linux/err.h> -+#include <asm/pgtable.h> -+#include <asm/alternative-asm.h> - - /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */ - #include <linux/elf-em.h> -@@ -69,8 +71,9 @@ - #ifdef CONFIG_FUNCTION_TRACER - #ifdef CONFIG_DYNAMIC_FTRACE - ENTRY(mcount) -+ pax_force_retaddr - retq --END(mcount) -+ENDPROC(mcount) - - ENTRY(ftrace_caller) - cmpl $0, function_trace_stop -@@ -93,8 +96,9 @@ GLOBAL(ftrace_graph_call) - #endif - - GLOBAL(ftrace_stub) -+ pax_force_retaddr - retq --END(ftrace_caller) -+ENDPROC(ftrace_caller) - - #else /* ! CONFIG_DYNAMIC_FTRACE */ - ENTRY(mcount) -@@ -113,6 +117,7 @@ ENTRY(mcount) - #endif - - GLOBAL(ftrace_stub) -+ pax_force_retaddr - retq - - trace: -@@ -122,12 +127,13 @@ trace: - movq 8(%rbp), %rsi - subq $MCOUNT_INSN_SIZE, %rdi - -+ pax_force_fptr ftrace_trace_function - call *ftrace_trace_function - - MCOUNT_RESTORE_FRAME - - jmp ftrace_stub --END(mcount) -+ENDPROC(mcount) - #endif /* CONFIG_DYNAMIC_FTRACE */ - #endif /* CONFIG_FUNCTION_TRACER */ - -@@ -147,8 +153,9 @@ ENTRY(ftrace_graph_caller) - - MCOUNT_RESTORE_FRAME - -+ pax_force_retaddr - retq --END(ftrace_graph_caller) -+ENDPROC(ftrace_graph_caller) - - GLOBAL(return_to_handler) - subq $24, %rsp -@@ -164,6 +171,7 @@ GLOBAL(return_to_handler) - movq 8(%rsp), %rdx - movq (%rsp), %rax - addq $24, %rsp -+ pax_force_fptr %rdi - jmp *%rdi - #endif - -@@ -179,6 +187,282 @@ ENTRY(native_usergs_sysret64) - ENDPROC(native_usergs_sysret64) - #endif /* CONFIG_PARAVIRT */ - -+ .macro ljmpq sel, off -+#if defined(CONFIG_MPSC) || defined(CONFIG_MCORE2) || defined (CONFIG_MATOM) -+ .byte 0x48; ljmp *1234f(%rip) -+ .pushsection .rodata -+ .align 16 -+ 1234: .quad \off; .word \sel -+ .popsection -+#else -+ pushq $\sel -+ pushq $\off -+ lretq -+#endif -+ .endm -+ -+ .macro pax_enter_kernel -+ pax_set_fptr_mask -+#ifdef CONFIG_PAX_KERNEXEC -+ call pax_enter_kernel -+#endif -+ .endm -+ -+ .macro pax_exit_kernel -+#ifdef CONFIG_PAX_KERNEXEC -+ call pax_exit_kernel -+#endif -+ .endm -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ENTRY(pax_enter_kernel) -+ pushq %rdi -+ -+#ifdef CONFIG_PARAVIRT -+ PV_SAVE_REGS(CLBR_RDI) -+#endif -+ -+ GET_CR0_INTO_RDI -+ bts $16,%rdi -+ jnc 3f -+ mov %cs,%edi -+ cmp $__KERNEL_CS,%edi -+ jnz 2f -+1: -+ -+#ifdef CONFIG_PARAVIRT -+ PV_RESTORE_REGS(CLBR_RDI) -+#endif -+ -+ popq %rdi -+ pax_force_retaddr -+ retq -+ -+2: ljmpq __KERNEL_CS,1f -+3: ljmpq __KERNEXEC_KERNEL_CS,4f -+4: SET_RDI_INTO_CR0 -+ jmp 1b -+ENDPROC(pax_enter_kernel) -+ -+ENTRY(pax_exit_kernel) -+ pushq %rdi -+ -+#ifdef CONFIG_PARAVIRT -+ PV_SAVE_REGS(CLBR_RDI) -+#endif -+ -+ mov %cs,%rdi -+ cmp $__KERNEXEC_KERNEL_CS,%edi -+ jz 2f -+1: -+ -+#ifdef CONFIG_PARAVIRT -+ PV_RESTORE_REGS(CLBR_RDI); -+#endif -+ -+ popq %rdi -+ pax_force_retaddr -+ retq -+ -+2: GET_CR0_INTO_RDI -+ btr $16,%rdi -+ ljmpq __KERNEL_CS,3f -+3: SET_RDI_INTO_CR0 -+ jmp 1b -+#ifdef CONFIG_PARAVIRT -+ PV_RESTORE_REGS(CLBR_RDI); -+#endif -+ -+ popq %rdi -+ pax_force_retaddr -+ retq -+ENDPROC(pax_exit_kernel) -+#endif -+ -+ .macro pax_enter_kernel_user -+ pax_set_fptr_mask -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ call pax_enter_kernel_user -+#endif -+ .endm -+ -+ .macro pax_exit_kernel_user -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ call pax_exit_kernel_user -+#endif -+#ifdef CONFIG_PAX_RANDKSTACK -+ pushq %rax -+ call pax_randomize_kstack -+ popq %rax -+#endif -+ .endm -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ENTRY(pax_enter_kernel_user) -+ pushq %rdi -+ pushq %rbx -+ -+#ifdef CONFIG_PARAVIRT -+ PV_SAVE_REGS(CLBR_RDI) -+#endif -+ -+ GET_CR3_INTO_RDI -+ mov %rdi,%rbx -+ add $__START_KERNEL_map,%rbx -+ sub phys_base(%rip),%rbx -+ -+#ifdef CONFIG_PARAVIRT -+ pushq %rdi -+ cmpl $0, pv_info+PARAVIRT_enabled -+ jz 1f -+ i = 0 -+ .rept USER_PGD_PTRS -+ mov i*8(%rbx),%rsi -+ mov $0,%sil -+ lea i*8(%rbx),%rdi -+ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched) -+ i = i + 1 -+ .endr -+ jmp 2f -+1: -+#endif -+ -+ i = 0 -+ .rept USER_PGD_PTRS -+ movb $0,i*8(%rbx) -+ i = i + 1 -+ .endr -+ -+#ifdef CONFIG_PARAVIRT -+2: popq %rdi -+#endif -+ SET_RDI_INTO_CR3 -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ GET_CR0_INTO_RDI -+ bts $16,%rdi -+ SET_RDI_INTO_CR0 -+#endif -+ -+#ifdef CONFIG_PARAVIRT -+ PV_RESTORE_REGS(CLBR_RDI) -+#endif -+ -+ popq %rbx -+ popq %rdi -+ pax_force_retaddr -+ retq -+ENDPROC(pax_enter_kernel_user) -+ -+ENTRY(pax_exit_kernel_user) -+ push %rdi -+ -+#ifdef CONFIG_PARAVIRT -+ pushq %rbx -+ PV_SAVE_REGS(CLBR_RDI) -+#endif -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ GET_CR0_INTO_RDI -+ btr $16,%rdi -+ SET_RDI_INTO_CR0 -+#endif -+ -+ GET_CR3_INTO_RDI -+ add $__START_KERNEL_map,%rdi -+ sub phys_base(%rip),%rdi -+ -+#ifdef CONFIG_PARAVIRT -+ cmpl $0, pv_info+PARAVIRT_enabled -+ jz 1f -+ mov %rdi,%rbx -+ i = 0 -+ .rept USER_PGD_PTRS -+ mov i*8(%rbx),%rsi -+ mov $0x67,%sil -+ lea i*8(%rbx),%rdi -+ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched) -+ i = i + 1 -+ .endr -+ jmp 2f -+1: -+#endif -+ -+ i = 0 -+ .rept USER_PGD_PTRS -+ movb $0x67,i*8(%rdi) -+ i = i + 1 -+ .endr -+ -+#ifdef CONFIG_PARAVIRT -+2: PV_RESTORE_REGS(CLBR_RDI) -+ popq %rbx -+#endif -+ -+ popq %rdi -+ pax_force_retaddr -+ retq -+ENDPROC(pax_exit_kernel_user) -+#endif -+ -+.macro pax_erase_kstack -+#ifdef CONFIG_PAX_MEMORY_STACKLEAK -+ call pax_erase_kstack -+#endif -+.endm -+ -+#ifdef CONFIG_PAX_MEMORY_STACKLEAK -+/* -+ * r11: thread_info -+ * rcx, rdx: can be clobbered -+ */ -+ENTRY(pax_erase_kstack) -+ pushq %rdi -+ pushq %rax -+ pushq %r11 -+ -+ GET_THREAD_INFO(%r11) -+ mov TI_lowest_stack(%r11), %rdi -+ mov $-0xBEEF, %rax -+ std -+ -+1: mov %edi, %ecx -+ and $THREAD_SIZE_asm - 1, %ecx -+ shr $3, %ecx -+ repne scasq -+ jecxz 2f -+ -+ cmp $2*8, %ecx -+ jc 2f -+ -+ mov $2*8, %ecx -+ repe scasq -+ jecxz 2f -+ jne 1b -+ -+2: cld -+ mov %esp, %ecx -+ sub %edi, %ecx -+ -+ cmp $THREAD_SIZE_asm, %rcx -+ jb 3f -+ ud2 -+3: -+ -+ shr $3, %ecx -+ rep stosq -+ -+ mov TI_task_thread_sp0(%r11), %rdi -+ sub $256, %rdi -+ mov %rdi, TI_lowest_stack(%r11) -+ -+ popq %r11 -+ popq %rax -+ popq %rdi -+ pax_force_retaddr -+ ret -+ENDPROC(pax_erase_kstack) -+#endif - - .macro TRACE_IRQS_IRETQ offset=ARGOFFSET - #ifdef CONFIG_TRACE_IRQFLAGS -@@ -232,8 +516,8 @@ ENDPROC(native_usergs_sysret64) - .endm - - .macro UNFAKE_STACK_FRAME -- addq $8*6, %rsp -- CFI_ADJUST_CFA_OFFSET -(6*8) -+ addq $8*6 + ARG_SKIP, %rsp -+ CFI_ADJUST_CFA_OFFSET -(6*8 + ARG_SKIP) - .endm - - /* -@@ -320,7 +604,7 @@ ENDPROC(native_usergs_sysret64) - movq %rsp, %rsi - - leaq -RBP(%rsp),%rdi /* arg1 for handler */ -- testl $3, CS-RBP(%rsi) -+ testb $3, CS-RBP(%rsi) - je 1f - SWAPGS - /* -@@ -355,9 +639,10 @@ ENTRY(save_rest) - movq_cfi r15, R15+16 - movq %r11, 8(%rsp) /* return address */ - FIXUP_TOP_OF_STACK %r11, 16 -+ pax_force_retaddr - ret - CFI_ENDPROC --END(save_rest) -+ENDPROC(save_rest) - - /* save complete stack frame */ - .pushsection .kprobes.text, "ax" -@@ -386,9 +671,10 @@ ENTRY(save_paranoid) - js 1f /* negative -> in kernel */ - SWAPGS - xorl %ebx,%ebx --1: ret -+1: pax_force_retaddr_bts -+ ret - CFI_ENDPROC --END(save_paranoid) -+ENDPROC(save_paranoid) - .popsection - - /* -@@ -410,7 +696,7 @@ ENTRY(ret_from_fork) - - RESTORE_REST - -- testl $3, CS-ARGOFFSET(%rsp) # from kernel_thread? -+ testb $3, CS-ARGOFFSET(%rsp) # from kernel_thread? - jz retint_restore_args - - testl $_TIF_IA32, TI_flags(%rcx) # 32-bit compat task needs IRET -@@ -420,7 +706,7 @@ ENTRY(ret_from_fork) - jmp ret_from_sys_call # go to the SYSRET fastpath - - CFI_ENDPROC --END(ret_from_fork) -+ENDPROC(ret_from_fork) - - /* - * System call entry. Up to 6 arguments in registers are supported. -@@ -456,7 +742,7 @@ END(ret_from_fork) - ENTRY(system_call) - CFI_STARTPROC simple - CFI_SIGNAL_FRAME -- CFI_DEF_CFA rsp,KERNEL_STACK_OFFSET -+ CFI_DEF_CFA rsp,0 - CFI_REGISTER rip,rcx - /*CFI_REGISTER rflags,r11*/ - SWAPGS_UNSAFE_STACK -@@ -469,16 +755,18 @@ GLOBAL(system_call_after_swapgs) - - movq %rsp,PER_CPU_VAR(old_rsp) - movq PER_CPU_VAR(kernel_stack),%rsp -+ SAVE_ARGS 8*6,0 -+ pax_enter_kernel_user - /* - * No need to follow this irqs off/on section - it's straight - * and short: - */ - ENABLE_INTERRUPTS(CLBR_NONE) -- SAVE_ARGS 8,0 - movq %rax,ORIG_RAX-ARGOFFSET(%rsp) - movq %rcx,RIP-ARGOFFSET(%rsp) - CFI_REL_OFFSET rip,RIP-ARGOFFSET -- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) -+ GET_THREAD_INFO(%rcx) -+ testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%rcx) - jnz tracesys - system_call_fastpath: - #if __SYSCALL_MASK == ~0 -@@ -488,7 +776,7 @@ system_call_fastpath: - cmpl $__NR_syscall_max,%eax - #endif - ja badsys -- movq %r10,%rcx -+ movq R10-ARGOFFSET(%rsp),%rcx - call *sys_call_table(,%rax,8) # XXX: rip relative - movq %rax,RAX-ARGOFFSET(%rsp) - /* -@@ -502,10 +790,13 @@ sysret_check: - LOCKDEP_SYS_EXIT - DISABLE_INTERRUPTS(CLBR_NONE) - TRACE_IRQS_OFF -- movl TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET),%edx -+ GET_THREAD_INFO(%rcx) -+ movl TI_flags(%rcx),%edx - andl %edi,%edx - jnz sysret_careful - CFI_REMEMBER_STATE -+ pax_exit_kernel_user -+ pax_erase_kstack - /* - * sysretq will re-enable interrupts: - */ -@@ -557,14 +848,18 @@ badsys: - * jump back to the normal fast path. - */ - auditsys: -- movq %r10,%r9 /* 6th arg: 4th syscall arg */ -+ movq R10-ARGOFFSET(%rsp),%r9 /* 6th arg: 4th syscall arg */ - movq %rdx,%r8 /* 5th arg: 3rd syscall arg */ - movq %rsi,%rcx /* 4th arg: 2nd syscall arg */ - movq %rdi,%rdx /* 3rd arg: 1st syscall arg */ - movq %rax,%rsi /* 2nd arg: syscall number */ - movl $AUDIT_ARCH_X86_64,%edi /* 1st arg: audit arch */ - call __audit_syscall_entry -+ -+ pax_erase_kstack -+ - LOAD_ARGS 0 /* reload call-clobbered registers */ -+ pax_set_fptr_mask - jmp system_call_fastpath - - /* -@@ -585,7 +880,7 @@ sysret_audit: - /* Do syscall tracing */ - tracesys: - #ifdef CONFIG_AUDITSYSCALL -- testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) -+ testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%rcx) - jz auditsys - #endif - SAVE_REST -@@ -593,12 +888,16 @@ tracesys: - FIXUP_TOP_OF_STACK %rdi - movq %rsp,%rdi - call syscall_trace_enter -+ -+ pax_erase_kstack -+ - /* - * Reload arg registers from stack in case ptrace changed them. - * We don't reload %rax because syscall_trace_enter() returned - * the value it wants us to use in the table lookup. - */ - LOAD_ARGS ARGOFFSET, 1 -+ pax_set_fptr_mask - RESTORE_REST - #if __SYSCALL_MASK == ~0 - cmpq $__NR_syscall_max,%rax -@@ -607,7 +906,7 @@ tracesys: - cmpl $__NR_syscall_max,%eax - #endif - ja int_ret_from_sys_call /* RAX(%rsp) set to -ENOSYS above */ -- movq %r10,%rcx /* fixup for C */ -+ movq R10-ARGOFFSET(%rsp),%rcx /* fixup for C */ - call *sys_call_table(,%rax,8) - movq %rax,RAX-ARGOFFSET(%rsp) - /* Use IRET because user could have changed frame */ -@@ -628,6 +927,7 @@ GLOBAL(int_with_check) - andl %edi,%edx - jnz int_careful - andl $~TS_COMPAT,TI_status(%rcx) -+ pax_erase_kstack - jmp retint_swapgs - - /* Either reschedule or signal or syscall exit tracking needed. */ -@@ -674,7 +974,7 @@ int_restore_rest: - TRACE_IRQS_OFF - jmp int_with_check - CFI_ENDPROC --END(system_call) -+ENDPROC(system_call) - - /* - * Certain special system calls that need to save a complete full stack frame. -@@ -690,7 +990,7 @@ ENTRY(\label) - call \func - jmp ptregscall_common - CFI_ENDPROC --END(\label) -+ENDPROC(\label) - .endm - - PTREGSCALL stub_clone, sys_clone, %r8 -@@ -708,9 +1008,10 @@ ENTRY(ptregscall_common) - movq_cfi_restore R12+8, r12 - movq_cfi_restore RBP+8, rbp - movq_cfi_restore RBX+8, rbx -+ pax_force_retaddr - ret $REST_SKIP /* pop extended registers */ - CFI_ENDPROC --END(ptregscall_common) -+ENDPROC(ptregscall_common) - - ENTRY(stub_execve) - CFI_STARTPROC -@@ -725,7 +1026,7 @@ ENTRY(stub_execve) - RESTORE_REST - jmp int_ret_from_sys_call - CFI_ENDPROC --END(stub_execve) -+ENDPROC(stub_execve) - - /* - * sigreturn is special because it needs to restore all registers on return. -@@ -743,7 +1044,7 @@ ENTRY(stub_rt_sigreturn) - RESTORE_REST - jmp int_ret_from_sys_call - CFI_ENDPROC --END(stub_rt_sigreturn) -+ENDPROC(stub_rt_sigreturn) - - #ifdef CONFIG_X86_X32_ABI - PTREGSCALL stub_x32_sigaltstack, sys32_sigaltstack, %rdx -@@ -812,7 +1113,7 @@ vector=vector+1 - 2: jmp common_interrupt - .endr - CFI_ENDPROC --END(irq_entries_start) -+ENDPROC(irq_entries_start) - - .previous - END(interrupt) -@@ -832,6 +1133,16 @@ END(interrupt) - subq $ORIG_RAX-RBP, %rsp - CFI_ADJUST_CFA_OFFSET ORIG_RAX-RBP - SAVE_ARGS_IRQ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ testb $3, CS(%rdi) -+ jnz 1f -+ pax_enter_kernel -+ jmp 2f -+1: pax_enter_kernel_user -+2: -+#else -+ pax_enter_kernel -+#endif - call \func - .endm - -@@ -863,7 +1174,7 @@ ret_from_intr: - - exit_intr: - GET_THREAD_INFO(%rcx) -- testl $3,CS-ARGOFFSET(%rsp) -+ testb $3,CS-ARGOFFSET(%rsp) - je retint_kernel - - /* Interrupt came from user space */ -@@ -885,12 +1196,15 @@ retint_swapgs: /* return to user-space */ - * The iretq could re-enable interrupts: - */ - DISABLE_INTERRUPTS(CLBR_ANY) -+ pax_exit_kernel_user - TRACE_IRQS_IRETQ - SWAPGS - jmp restore_args - - retint_restore_args: /* return to kernel space */ - DISABLE_INTERRUPTS(CLBR_ANY) -+ pax_exit_kernel -+ pax_force_retaddr RIP-ARGOFFSET - /* - * The iretq could re-enable interrupts: - */ -@@ -979,7 +1293,7 @@ ENTRY(retint_kernel) - #endif - - CFI_ENDPROC --END(common_interrupt) -+ENDPROC(common_interrupt) - /* - * End of kprobes section - */ -@@ -996,7 +1310,7 @@ ENTRY(\sym) - interrupt \do_sym - jmp ret_from_intr - CFI_ENDPROC --END(\sym) -+ENDPROC(\sym) - .endm - - #ifdef CONFIG_SMP -@@ -1069,12 +1383,22 @@ ENTRY(\sym) - CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15 - call error_entry - DEFAULT_FRAME 0 -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ testb $3, CS(%rsp) -+ jnz 1f -+ pax_enter_kernel -+ jmp 2f -+1: pax_enter_kernel_user -+2: -+#else -+ pax_enter_kernel -+#endif - movq %rsp,%rdi /* pt_regs pointer */ - xorl %esi,%esi /* no error code */ - call \do_sym - jmp error_exit /* %ebx: no swapgs flag */ - CFI_ENDPROC --END(\sym) -+ENDPROC(\sym) - .endm - - .macro paranoidzeroentry sym do_sym -@@ -1086,15 +1410,25 @@ ENTRY(\sym) - CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15 - call save_paranoid - TRACE_IRQS_OFF -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ testb $3, CS(%rsp) -+ jnz 1f -+ pax_enter_kernel -+ jmp 2f -+1: pax_enter_kernel_user -+2: -+#else -+ pax_enter_kernel -+#endif - movq %rsp,%rdi /* pt_regs pointer */ - xorl %esi,%esi /* no error code */ - call \do_sym - jmp paranoid_exit /* %ebx: no swapgs flag */ - CFI_ENDPROC --END(\sym) -+ENDPROC(\sym) - .endm - --#define INIT_TSS_IST(x) PER_CPU_VAR(init_tss) + (TSS_ist + ((x) - 1) * 8) -+#define INIT_TSS_IST(x) (TSS_ist + ((x) - 1) * 8)(%r12) - .macro paranoidzeroentry_ist sym do_sym ist - ENTRY(\sym) - INTR_FRAME -@@ -1104,14 +1438,30 @@ ENTRY(\sym) - CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15 - call save_paranoid - TRACE_IRQS_OFF -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ testb $3, CS(%rsp) -+ jnz 1f -+ pax_enter_kernel -+ jmp 2f -+1: pax_enter_kernel_user -+2: -+#else -+ pax_enter_kernel -+#endif - movq %rsp,%rdi /* pt_regs pointer */ - xorl %esi,%esi /* no error code */ -+#ifdef CONFIG_SMP -+ imul $TSS_size, PER_CPU_VAR(cpu_number), %r12d -+ lea init_tss(%r12), %r12 -+#else -+ lea init_tss(%rip), %r12 -+#endif - subq $EXCEPTION_STKSZ, INIT_TSS_IST(\ist) - call \do_sym - addq $EXCEPTION_STKSZ, INIT_TSS_IST(\ist) - jmp paranoid_exit /* %ebx: no swapgs flag */ - CFI_ENDPROC --END(\sym) -+ENDPROC(\sym) - .endm - - .macro errorentry sym do_sym -@@ -1122,13 +1472,23 @@ ENTRY(\sym) - CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15 - call error_entry - DEFAULT_FRAME 0 -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ testb $3, CS(%rsp) -+ jnz 1f -+ pax_enter_kernel -+ jmp 2f -+1: pax_enter_kernel_user -+2: -+#else -+ pax_enter_kernel -+#endif - movq %rsp,%rdi /* pt_regs pointer */ - movq ORIG_RAX(%rsp),%rsi /* get error code */ - movq $-1,ORIG_RAX(%rsp) /* no syscall to restart */ - call \do_sym - jmp error_exit /* %ebx: no swapgs flag */ - CFI_ENDPROC --END(\sym) -+ENDPROC(\sym) - .endm - - /* error code is on the stack already */ -@@ -1141,13 +1501,23 @@ ENTRY(\sym) - call save_paranoid - DEFAULT_FRAME 0 - TRACE_IRQS_OFF -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ testb $3, CS(%rsp) -+ jnz 1f -+ pax_enter_kernel -+ jmp 2f -+1: pax_enter_kernel_user -+2: -+#else -+ pax_enter_kernel -+#endif - movq %rsp,%rdi /* pt_regs pointer */ - movq ORIG_RAX(%rsp),%rsi /* get error code */ - movq $-1,ORIG_RAX(%rsp) /* no syscall to restart */ - call \do_sym - jmp paranoid_exit /* %ebx: no swapgs flag */ - CFI_ENDPROC --END(\sym) -+ENDPROC(\sym) - .endm - - zeroentry divide_error do_divide_error -@@ -1177,9 +1547,10 @@ gs_change: - 2: mfence /* workaround */ - SWAPGS - popfq_cfi -+ pax_force_retaddr - ret - CFI_ENDPROC --END(native_load_gs_index) -+ENDPROC(native_load_gs_index) - - .section __ex_table,"a" - .align 8 -@@ -1201,13 +1572,14 @@ ENTRY(kernel_thread_helper) - * Here we are in the child and the registers are set as they were - * at kernel_thread() invocation in the parent. - */ -+ pax_force_fptr %rsi - call *%rsi - # exit - mov %eax, %edi - call do_exit - ud2 # padding for call trace - CFI_ENDPROC --END(kernel_thread_helper) -+ENDPROC(kernel_thread_helper) - - /* - * execve(). This function needs to use IRET, not SYSRET, to set up all state properly. -@@ -1234,11 +1606,11 @@ ENTRY(kernel_execve) - RESTORE_REST - testq %rax,%rax - je int_ret_from_sys_call -- RESTORE_ARGS - UNFAKE_STACK_FRAME -+ pax_force_retaddr - ret - CFI_ENDPROC --END(kernel_execve) -+ENDPROC(kernel_execve) - - /* Call softirq on interrupt stack. Interrupts are off. */ - ENTRY(call_softirq) -@@ -1256,9 +1628,10 @@ ENTRY(call_softirq) - CFI_DEF_CFA_REGISTER rsp - CFI_ADJUST_CFA_OFFSET -8 - decl PER_CPU_VAR(irq_count) -+ pax_force_retaddr - ret - CFI_ENDPROC --END(call_softirq) -+ENDPROC(call_softirq) - - #ifdef CONFIG_XEN - zeroentry xen_hypervisor_callback xen_do_hypervisor_callback -@@ -1296,7 +1669,7 @@ ENTRY(xen_do_hypervisor_callback) # do_hypervisor_callback(struct *pt_regs) - decl PER_CPU_VAR(irq_count) - jmp error_exit - CFI_ENDPROC --END(xen_do_hypervisor_callback) -+ENDPROC(xen_do_hypervisor_callback) - - /* - * Hypervisor uses this for application faults while it executes. -@@ -1355,7 +1728,7 @@ ENTRY(xen_failsafe_callback) - SAVE_ALL - jmp error_exit - CFI_ENDPROC --END(xen_failsafe_callback) -+ENDPROC(xen_failsafe_callback) - - apicinterrupt XEN_HVM_EVTCHN_CALLBACK \ - xen_hvm_callback_vector xen_evtchn_do_upcall -@@ -1404,16 +1777,31 @@ ENTRY(paranoid_exit) - TRACE_IRQS_OFF - testl %ebx,%ebx /* swapgs needed? */ - jnz paranoid_restore -- testl $3,CS(%rsp) -+ testb $3,CS(%rsp) - jnz paranoid_userspace -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pax_exit_kernel -+ TRACE_IRQS_IRETQ 0 -+ SWAPGS_UNSAFE_STACK -+ RESTORE_ALL 8 -+ pax_force_retaddr_bts -+ jmp irq_return -+#endif - paranoid_swapgs: -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pax_exit_kernel_user -+#else -+ pax_exit_kernel -+#endif - TRACE_IRQS_IRETQ 0 - SWAPGS_UNSAFE_STACK - RESTORE_ALL 8 - jmp irq_return - paranoid_restore: -+ pax_exit_kernel - TRACE_IRQS_IRETQ 0 - RESTORE_ALL 8 -+ pax_force_retaddr_bts - jmp irq_return - paranoid_userspace: - GET_THREAD_INFO(%rcx) -@@ -1442,7 +1830,7 @@ paranoid_schedule: - TRACE_IRQS_OFF - jmp paranoid_userspace - CFI_ENDPROC --END(paranoid_exit) -+ENDPROC(paranoid_exit) - - /* - * Exception entry point. This expects an error code/orig_rax on the stack. -@@ -1469,12 +1857,13 @@ ENTRY(error_entry) - movq_cfi r14, R14+8 - movq_cfi r15, R15+8 - xorl %ebx,%ebx -- testl $3,CS+8(%rsp) -+ testb $3,CS+8(%rsp) - je error_kernelspace - error_swapgs: - SWAPGS - error_sti: - TRACE_IRQS_OFF -+ pax_force_retaddr_bts - ret - - /* -@@ -1501,7 +1890,7 @@ bstep_iret: - movq %rcx,RIP+8(%rsp) - jmp error_swapgs - CFI_ENDPROC --END(error_entry) -+ENDPROC(error_entry) - - - /* ebx: no swapgs flag (1: don't need swapgs, 0: need it) */ -@@ -1521,7 +1910,7 @@ ENTRY(error_exit) - jnz retint_careful - jmp retint_swapgs - CFI_ENDPROC --END(error_exit) -+ENDPROC(error_exit) - - /* - * Test if a given stack is an NMI stack or not. -@@ -1579,9 +1968,11 @@ ENTRY(nmi) - * If %cs was not the kernel segment, then the NMI triggered in user - * space, which means it is definitely not nested. - */ -+ cmpl $__KERNEXEC_KERNEL_CS, 16(%rsp) -+ je 1f - cmpl $__KERNEL_CS, 16(%rsp) - jne first_nmi -- -+1: - /* - * Check the special variable on the stack to see if NMIs are - * executing. -@@ -1728,6 +2119,16 @@ end_repeat_nmi: - */ - call save_paranoid - DEFAULT_FRAME 0 -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ testb $3, CS(%rsp) -+ jnz 1f -+ pax_enter_kernel -+ jmp 2f -+1: pax_enter_kernel_user -+2: -+#else -+ pax_enter_kernel -+#endif - /* paranoidentry do_nmi, 0; without TRACE_IRQS_OFF */ - movq %rsp,%rdi - movq $-1,%rsi -@@ -1735,21 +2136,32 @@ end_repeat_nmi: - testl %ebx,%ebx /* swapgs needed? */ - jnz nmi_restore - nmi_swapgs: -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pax_exit_kernel_user -+#else -+ pax_exit_kernel -+#endif - SWAPGS_UNSAFE_STACK -+ RESTORE_ALL 8 -+ /* Clear the NMI executing stack variable */ -+ movq $0, 10*8(%rsp) -+ jmp irq_return - nmi_restore: -+ pax_exit_kernel - RESTORE_ALL 8 -+ pax_force_retaddr_bts - /* Clear the NMI executing stack variable */ - movq $0, 10*8(%rsp) - jmp irq_return - CFI_ENDPROC --END(nmi) -+ENDPROC(nmi) - - ENTRY(ignore_sysret) - CFI_STARTPROC - mov $-ENOSYS,%eax - sysret - CFI_ENDPROC --END(ignore_sysret) -+ENDPROC(ignore_sysret) - - /* - * End of kprobes section -diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c -index c9a281f..ce2f317 100644 ---- a/arch/x86/kernel/ftrace.c -+++ b/arch/x86/kernel/ftrace.c -@@ -126,7 +126,7 @@ static void *mod_code_ip; /* holds the IP to write to */ - static const void *mod_code_newcode; /* holds the text to write to the IP */ - - static unsigned nmi_wait_count; --static atomic_t nmi_update_count = ATOMIC_INIT(0); -+static atomic_unchecked_t nmi_update_count = ATOMIC_INIT(0); - - int ftrace_arch_read_dyn_info(char *buf, int size) - { -@@ -134,7 +134,7 @@ int ftrace_arch_read_dyn_info(char *buf, int size) - - r = snprintf(buf, size, "%u %u", - nmi_wait_count, -- atomic_read(&nmi_update_count)); -+ atomic_read_unchecked(&nmi_update_count)); - return r; - } - -@@ -177,8 +177,10 @@ void ftrace_nmi_enter(void) - - if (atomic_inc_return(&nmi_running) & MOD_CODE_WRITE_FLAG) { - smp_rmb(); -+ pax_open_kernel(); - ftrace_mod_code(); -- atomic_inc(&nmi_update_count); -+ pax_close_kernel(); -+ atomic_inc_unchecked(&nmi_update_count); - } - /* Must have previous changes seen before executions */ - smp_mb(); -@@ -271,6 +273,8 @@ ftrace_modify_code(unsigned long ip, unsigned const char *old_code, - { - unsigned char replaced[MCOUNT_INSN_SIZE]; - -+ ip = ktla_ktva(ip); -+ - /* - * Note: Due to modules and __init, code can - * disappear and change, we need to protect against faulting -@@ -327,7 +331,7 @@ int ftrace_update_ftrace_func(ftrace_func_t func) - unsigned char old[MCOUNT_INSN_SIZE], *new; - int ret; - -- memcpy(old, &ftrace_call, MCOUNT_INSN_SIZE); -+ memcpy(old, (void *)ktla_ktva((unsigned long)ftrace_call), MCOUNT_INSN_SIZE); - new = ftrace_call_replace(ip, (unsigned long)func); - ret = ftrace_modify_code(ip, old, new); - -@@ -353,6 +357,8 @@ static int ftrace_mod_jmp(unsigned long ip, - { - unsigned char code[MCOUNT_INSN_SIZE]; - -+ ip = ktla_ktva(ip); -+ - if (probe_kernel_read(code, (void *)ip, MCOUNT_INSN_SIZE)) - return -EFAULT; - -diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c -index 51ff186..9e77418 100644 ---- a/arch/x86/kernel/head32.c -+++ b/arch/x86/kernel/head32.c -@@ -19,6 +19,7 @@ - #include <asm/io_apic.h> - #include <asm/bios_ebda.h> - #include <asm/tlbflush.h> -+#include <asm/boot.h> - - static void __init i386_default_early_setup(void) - { -@@ -31,8 +32,7 @@ static void __init i386_default_early_setup(void) - - void __init i386_start_kernel(void) - { -- memblock_reserve(__pa_symbol(&_text), -- __pa_symbol(&__bss_stop) - __pa_symbol(&_text)); -+ memblock_reserve(LOAD_PHYSICAL_ADDR, __pa_symbol(&__bss_stop) - LOAD_PHYSICAL_ADDR); - - #ifdef CONFIG_BLK_DEV_INITRD - /* Reserve INITRD */ -diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S -index ce0be7c..c41476e 100644 ---- a/arch/x86/kernel/head_32.S -+++ b/arch/x86/kernel/head_32.S -@@ -25,6 +25,12 @@ - /* Physical address */ - #define pa(X) ((X) - __PAGE_OFFSET) - -+#ifdef CONFIG_PAX_KERNEXEC -+#define ta(X) (X) -+#else -+#define ta(X) ((X) - __PAGE_OFFSET) -+#endif -+ - /* - * References to members of the new_cpu_data structure. - */ -@@ -54,11 +60,7 @@ - * and small than max_low_pfn, otherwise will waste some page table entries - */ - --#if PTRS_PER_PMD > 1 --#define PAGE_TABLE_SIZE(pages) (((pages) / PTRS_PER_PMD) + PTRS_PER_PGD) --#else --#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PGD) --#endif -+#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PTE) - - /* Number of possible pages in the lowmem region */ - LOWMEM_PAGES = (((1<<32) - __PAGE_OFFSET) >> PAGE_SHIFT) -@@ -77,6 +79,12 @@ INIT_MAP_SIZE = PAGE_TABLE_SIZE(KERNEL_PAGES) * PAGE_SIZE - RESERVE_BRK(pagetables, INIT_MAP_SIZE) - - /* -+ * Real beginning of normal "text" segment -+ */ -+ENTRY(stext) -+ENTRY(_stext) -+ -+/* - * 32-bit kernel entrypoint; only used by the boot CPU. On entry, - * %esi points to the real-mode code as a 32-bit pointer. - * CS and DS must be 4 GB flat segments, but we don't depend on -@@ -84,6 +92,13 @@ RESERVE_BRK(pagetables, INIT_MAP_SIZE) - * can. - */ - __HEAD -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ jmp startup_32 -+/* PaX: fill first page in .text with int3 to catch NULL derefs in kernel mode */ -+.fill PAGE_SIZE-5,1,0xcc -+#endif -+ - ENTRY(startup_32) - movl pa(stack_start),%ecx - -@@ -105,6 +120,57 @@ ENTRY(startup_32) - 2: - leal -__PAGE_OFFSET(%ecx),%esp - -+#ifdef CONFIG_SMP -+ movl $pa(cpu_gdt_table),%edi -+ movl $__per_cpu_load,%eax -+ movw %ax,__KERNEL_PERCPU + 2(%edi) -+ rorl $16,%eax -+ movb %al,__KERNEL_PERCPU + 4(%edi) -+ movb %ah,__KERNEL_PERCPU + 7(%edi) -+ movl $__per_cpu_end - 1,%eax -+ subl $__per_cpu_start,%eax -+ movw %ax,__KERNEL_PERCPU + 0(%edi) -+#endif -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ movl $NR_CPUS,%ecx -+ movl $pa(cpu_gdt_table),%edi -+1: -+ movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c09700),GDT_ENTRY_KERNEL_DS * 8 + 4(%edi) -+ movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0fb00),GDT_ENTRY_DEFAULT_USER_CS * 8 + 4(%edi) -+ movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0f300),GDT_ENTRY_DEFAULT_USER_DS * 8 + 4(%edi) -+ addl $PAGE_SIZE_asm,%edi -+ loop 1b -+#endif -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ movl $pa(boot_gdt),%edi -+ movl $__LOAD_PHYSICAL_ADDR,%eax -+ movw %ax,__BOOT_CS + 2(%edi) -+ rorl $16,%eax -+ movb %al,__BOOT_CS + 4(%edi) -+ movb %ah,__BOOT_CS + 7(%edi) -+ rorl $16,%eax -+ -+ ljmp $(__BOOT_CS),$1f -+1: -+ -+ movl $NR_CPUS,%ecx -+ movl $pa(cpu_gdt_table),%edi -+ addl $__PAGE_OFFSET,%eax -+1: -+ movw %ax,__KERNEL_CS + 2(%edi) -+ movw %ax,__KERNEXEC_KERNEL_CS + 2(%edi) -+ rorl $16,%eax -+ movb %al,__KERNEL_CS + 4(%edi) -+ movb %al,__KERNEXEC_KERNEL_CS + 4(%edi) -+ movb %ah,__KERNEL_CS + 7(%edi) -+ movb %ah,__KERNEXEC_KERNEL_CS + 7(%edi) -+ rorl $16,%eax -+ addl $PAGE_SIZE_asm,%edi -+ loop 1b -+#endif -+ - /* - * Clear BSS first so that there are no surprises... - */ -@@ -195,8 +261,11 @@ ENTRY(startup_32) - movl %eax, pa(max_pfn_mapped) - - /* Do early initialization of the fixmap area */ -- movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax -- movl %eax,pa(initial_pg_pmd+0x1000*KPMDS-8) -+#ifdef CONFIG_COMPAT_VDSO -+ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_pg_pmd+0x1000*KPMDS-8) -+#else -+ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_pg_pmd+0x1000*KPMDS-8) -+#endif - #else /* Not PAE */ - - page_pde_offset = (__PAGE_OFFSET >> 20); -@@ -226,8 +295,11 @@ page_pde_offset = (__PAGE_OFFSET >> 20); - movl %eax, pa(max_pfn_mapped) - - /* Do early initialization of the fixmap area */ -- movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax -- movl %eax,pa(initial_page_table+0xffc) -+#ifdef CONFIG_COMPAT_VDSO -+ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_page_table+0xffc) -+#else -+ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_page_table+0xffc) -+#endif - #endif - - #ifdef CONFIG_PARAVIRT -@@ -241,9 +313,7 @@ page_pde_offset = (__PAGE_OFFSET >> 20); - cmpl $num_subarch_entries, %eax - jae bad_subarch - -- movl pa(subarch_entries)(,%eax,4), %eax -- subl $__PAGE_OFFSET, %eax -- jmp *%eax -+ jmp *pa(subarch_entries)(,%eax,4) - - bad_subarch: - WEAK(lguest_entry) -@@ -255,10 +325,10 @@ WEAK(xen_entry) - __INITDATA - - subarch_entries: -- .long default_entry /* normal x86/PC */ -- .long lguest_entry /* lguest hypervisor */ -- .long xen_entry /* Xen hypervisor */ -- .long default_entry /* Moorestown MID */ -+ .long ta(default_entry) /* normal x86/PC */ -+ .long ta(lguest_entry) /* lguest hypervisor */ -+ .long ta(xen_entry) /* Xen hypervisor */ -+ .long ta(default_entry) /* Moorestown MID */ - num_subarch_entries = (. - subarch_entries) / 4 - .previous - #else -@@ -312,6 +382,7 @@ default_entry: - orl %edx,%eax - movl %eax,%cr4 - -+#ifdef CONFIG_X86_PAE - testb $X86_CR4_PAE, %al # check if PAE is enabled - jz 6f - -@@ -340,6 +411,9 @@ default_entry: - /* Make changes effective */ - wrmsr - -+ btsl $_PAGE_BIT_NX-32,pa(__supported_pte_mask+4) -+#endif -+ - 6: - - /* -@@ -443,7 +517,7 @@ is386: movl $2,%ecx # set MP - 1: movl $(__KERNEL_DS),%eax # reload all the segment registers - movl %eax,%ss # after changing gdt. - -- movl $(__USER_DS),%eax # DS/ES contains default USER segment -+# movl $(__KERNEL_DS),%eax # DS/ES contains default KERNEL segment - movl %eax,%ds - movl %eax,%es - -@@ -457,15 +531,22 @@ is386: movl $2,%ecx # set MP - */ - cmpb $0,ready - jne 1f -- movl $gdt_page,%eax -+ movl $cpu_gdt_table,%eax - movl $stack_canary,%ecx -+#ifdef CONFIG_SMP -+ addl $__per_cpu_load,%ecx -+#endif - movw %cx, 8 * GDT_ENTRY_STACK_CANARY + 2(%eax) - shrl $16, %ecx - movb %cl, 8 * GDT_ENTRY_STACK_CANARY + 4(%eax) - movb %ch, 8 * GDT_ENTRY_STACK_CANARY + 7(%eax) - 1: --#endif - movl $(__KERNEL_STACK_CANARY),%eax -+#elif defined(CONFIG_PAX_MEMORY_UDEREF) -+ movl $(__USER_DS),%eax -+#else -+ xorl %eax,%eax -+#endif - movl %eax,%gs - - xorl %eax,%eax # Clear LDT -@@ -558,22 +639,22 @@ early_page_fault: - jmp early_fault - - early_fault: -- cld - #ifdef CONFIG_PRINTK -+ cmpl $1,%ss:early_recursion_flag -+ je hlt_loop -+ incl %ss:early_recursion_flag -+ cld - pusha - movl $(__KERNEL_DS),%eax - movl %eax,%ds - movl %eax,%es -- cmpl $2,early_recursion_flag -- je hlt_loop -- incl early_recursion_flag - movl %cr2,%eax - pushl %eax - pushl %edx /* trapno */ - pushl $fault_msg - call printk -+; call dump_stack - #endif -- call dump_stack - hlt_loop: - hlt - jmp hlt_loop -@@ -581,8 +662,11 @@ hlt_loop: - /* This is the default interrupt "handler" :-) */ - ALIGN - ignore_int: -- cld - #ifdef CONFIG_PRINTK -+ cmpl $2,%ss:early_recursion_flag -+ je hlt_loop -+ incl %ss:early_recursion_flag -+ cld - pushl %eax - pushl %ecx - pushl %edx -@@ -591,9 +675,6 @@ ignore_int: - movl $(__KERNEL_DS),%eax - movl %eax,%ds - movl %eax,%es -- cmpl $2,early_recursion_flag -- je hlt_loop -- incl early_recursion_flag - pushl 16(%esp) - pushl 24(%esp) - pushl 32(%esp) -@@ -622,29 +703,43 @@ ENTRY(initial_code) - /* - * BSS section - */ --__PAGE_ALIGNED_BSS -- .align PAGE_SIZE - #ifdef CONFIG_X86_PAE -+.section .initial_pg_pmd,"a",@progbits - initial_pg_pmd: - .fill 1024*KPMDS,4,0 - #else -+.section .initial_page_table,"a",@progbits - ENTRY(initial_page_table) - .fill 1024,4,0 - #endif -+.section .initial_pg_fixmap,"a",@progbits - initial_pg_fixmap: - .fill 1024,4,0 -+.section .empty_zero_page,"a",@progbits - ENTRY(empty_zero_page) - .fill 4096,1,0 -+.section .swapper_pg_dir,"a",@progbits - ENTRY(swapper_pg_dir) -+#ifdef CONFIG_X86_PAE -+ .fill 4,8,0 -+#else - .fill 1024,4,0 -+#endif -+ -+/* -+ * The IDT has to be page-aligned to simplify the Pentium -+ * F0 0F bug workaround.. We have a special link segment -+ * for this. -+ */ -+.section .idt,"a",@progbits -+ENTRY(idt_table) -+ .fill 256,8,0 - - /* - * This starts the data section. - */ - #ifdef CONFIG_X86_PAE --__PAGE_ALIGNED_DATA -- /* Page-aligned for the benefit of paravirt? */ -- .align PAGE_SIZE -+.section .initial_page_table,"a",@progbits - ENTRY(initial_page_table) - .long pa(initial_pg_pmd+PGD_IDENT_ATTR),0 /* low identity map */ - # if KPMDS == 3 -@@ -663,18 +758,27 @@ ENTRY(initial_page_table) - # error "Kernel PMDs should be 1, 2 or 3" - # endif - .align PAGE_SIZE /* needs to be page-sized too */ -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ENTRY(cpu_pgd) -+ .rept NR_CPUS -+ .fill 4,8,0 -+ .endr -+#endif -+ - #endif - - .data - .balign 4 - ENTRY(stack_start) -- .long init_thread_union+THREAD_SIZE -+ .long init_thread_union+THREAD_SIZE-8 - -+ready: .byte 0 -+ -+.section .rodata,"a",@progbits - early_recursion_flag: - .long 0 - --ready: .byte 0 -- - int_msg: - .asciz "Unknown interrupt or fault at: %p %p %p\n" - -@@ -707,7 +811,7 @@ fault_msg: - .word 0 # 32 bit align gdt_desc.address - boot_gdt_descr: - .word __BOOT_DS+7 -- .long boot_gdt - __PAGE_OFFSET -+ .long pa(boot_gdt) - - .word 0 # 32-bit align idt_desc.address - idt_descr: -@@ -718,7 +822,7 @@ idt_descr: - .word 0 # 32 bit align gdt_desc.address - ENTRY(early_gdt_descr) - .word GDT_ENTRIES*8-1 -- .long gdt_page /* Overwritten for secondary CPUs */ -+ .long cpu_gdt_table /* Overwritten for secondary CPUs */ - - /* - * The boot_gdt must mirror the equivalent in setup.S and is -@@ -727,5 +831,65 @@ ENTRY(early_gdt_descr) - .align L1_CACHE_BYTES - ENTRY(boot_gdt) - .fill GDT_ENTRY_BOOT_CS,8,0 -- .quad 0x00cf9a000000ffff /* kernel 4GB code at 0x00000000 */ -- .quad 0x00cf92000000ffff /* kernel 4GB data at 0x00000000 */ -+ .quad 0x00cf9b000000ffff /* kernel 4GB code at 0x00000000 */ -+ .quad 0x00cf93000000ffff /* kernel 4GB data at 0x00000000 */ -+ -+ .align PAGE_SIZE_asm -+ENTRY(cpu_gdt_table) -+ .rept NR_CPUS -+ .quad 0x0000000000000000 /* NULL descriptor */ -+ .quad 0x0000000000000000 /* 0x0b reserved */ -+ .quad 0x0000000000000000 /* 0x13 reserved */ -+ .quad 0x0000000000000000 /* 0x1b reserved */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ .quad 0x00cf9b000000ffff /* 0x20 alternate kernel 4GB code at 0x00000000 */ -+#else -+ .quad 0x0000000000000000 /* 0x20 unused */ -+#endif -+ -+ .quad 0x0000000000000000 /* 0x28 unused */ -+ .quad 0x0000000000000000 /* 0x33 TLS entry 1 */ -+ .quad 0x0000000000000000 /* 0x3b TLS entry 2 */ -+ .quad 0x0000000000000000 /* 0x43 TLS entry 3 */ -+ .quad 0x0000000000000000 /* 0x4b reserved */ -+ .quad 0x0000000000000000 /* 0x53 reserved */ -+ .quad 0x0000000000000000 /* 0x5b reserved */ -+ -+ .quad 0x00cf9b000000ffff /* 0x60 kernel 4GB code at 0x00000000 */ -+ .quad 0x00cf93000000ffff /* 0x68 kernel 4GB data at 0x00000000 */ -+ .quad 0x00cffb000000ffff /* 0x73 user 4GB code at 0x00000000 */ -+ .quad 0x00cff3000000ffff /* 0x7b user 4GB data at 0x00000000 */ -+ -+ .quad 0x0000000000000000 /* 0x80 TSS descriptor */ -+ .quad 0x0000000000000000 /* 0x88 LDT descriptor */ -+ -+ /* -+ * Segments used for calling PnP BIOS have byte granularity. -+ * The code segments and data segments have fixed 64k limits, -+ * the transfer segment sizes are set at run time. -+ */ -+ .quad 0x00409b000000ffff /* 0x90 32-bit code */ -+ .quad 0x00009b000000ffff /* 0x98 16-bit code */ -+ .quad 0x000093000000ffff /* 0xa0 16-bit data */ -+ .quad 0x0000930000000000 /* 0xa8 16-bit data */ -+ .quad 0x0000930000000000 /* 0xb0 16-bit data */ -+ -+ /* -+ * The APM segments have byte granularity and their bases -+ * are set at run time. All have 64k limits. -+ */ -+ .quad 0x00409b000000ffff /* 0xb8 APM CS code */ -+ .quad 0x00009b000000ffff /* 0xc0 APM CS 16 code (16 bit) */ -+ .quad 0x004093000000ffff /* 0xc8 APM DS data */ -+ -+ .quad 0x00c0930000000000 /* 0xd0 - ESPFIX SS */ -+ .quad 0x0040930000000000 /* 0xd8 - PERCPU */ -+ .quad 0x0040910000000017 /* 0xe0 - STACK_CANARY */ -+ .quad 0x0000000000000000 /* 0xe8 - PCIBIOS_CS */ -+ .quad 0x0000000000000000 /* 0xf0 - PCIBIOS_DS */ -+ .quad 0x0000000000000000 /* 0xf8 - GDT entry 31: double-fault TSS */ -+ -+ /* Be sure this is zeroed to avoid false validations in Xen */ -+ .fill PAGE_SIZE_asm - GDT_SIZE,1,0 -+ .endr -diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S -index 40f4eb3..6d24d9d 100644 ---- a/arch/x86/kernel/head_64.S -+++ b/arch/x86/kernel/head_64.S -@@ -19,6 +19,8 @@ - #include <asm/cache.h> - #include <asm/processor-flags.h> - #include <asm/percpu.h> -+#include <asm/cpufeature.h> -+#include <asm/alternative-asm.h> - - #ifdef CONFIG_PARAVIRT - #include <asm/asm-offsets.h> -@@ -38,6 +40,12 @@ L4_PAGE_OFFSET = pgd_index(__PAGE_OFFSET) - L3_PAGE_OFFSET = pud_index(__PAGE_OFFSET) - L4_START_KERNEL = pgd_index(__START_KERNEL_map) - L3_START_KERNEL = pud_index(__START_KERNEL_map) -+L4_VMALLOC_START = pgd_index(VMALLOC_START) -+L3_VMALLOC_START = pud_index(VMALLOC_START) -+L4_VMALLOC_END = pgd_index(VMALLOC_END) -+L3_VMALLOC_END = pud_index(VMALLOC_END) -+L4_VMEMMAP_START = pgd_index(VMEMMAP_START) -+L3_VMEMMAP_START = pud_index(VMEMMAP_START) - - .text - __HEAD -@@ -85,35 +93,23 @@ startup_64: - */ - addq %rbp, init_level4_pgt + 0(%rip) - addq %rbp, init_level4_pgt + (L4_PAGE_OFFSET*8)(%rip) -+ addq %rbp, init_level4_pgt + (L4_VMALLOC_START*8)(%rip) -+ addq %rbp, init_level4_pgt + (L4_VMALLOC_END*8)(%rip) -+ addq %rbp, init_level4_pgt + (L4_VMEMMAP_START*8)(%rip) - addq %rbp, init_level4_pgt + (L4_START_KERNEL*8)(%rip) - - addq %rbp, level3_ident_pgt + 0(%rip) -+#ifndef CONFIG_XEN -+ addq %rbp, level3_ident_pgt + 8(%rip) -+#endif - -- addq %rbp, level3_kernel_pgt + (510*8)(%rip) -- addq %rbp, level3_kernel_pgt + (511*8)(%rip) -+ addq %rbp, level3_vmemmap_pgt + (L3_VMEMMAP_START*8)(%rip) -+ -+ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8)(%rip) -+ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8+8)(%rip) - - addq %rbp, level2_fixmap_pgt + (506*8)(%rip) -- -- /* Add an Identity mapping if I am above 1G */ -- leaq _text(%rip), %rdi -- andq $PMD_PAGE_MASK, %rdi -- -- movq %rdi, %rax -- shrq $PUD_SHIFT, %rax -- andq $(PTRS_PER_PUD - 1), %rax -- jz ident_complete -- -- leaq (level2_spare_pgt - __START_KERNEL_map + _KERNPG_TABLE)(%rbp), %rdx -- leaq level3_ident_pgt(%rip), %rbx -- movq %rdx, 0(%rbx, %rax, 8) -- -- movq %rdi, %rax -- shrq $PMD_SHIFT, %rax -- andq $(PTRS_PER_PMD - 1), %rax -- leaq __PAGE_KERNEL_IDENT_LARGE_EXEC(%rdi), %rdx -- leaq level2_spare_pgt(%rip), %rbx -- movq %rdx, 0(%rbx, %rax, 8) --ident_complete: -+ addq %rbp, level2_fixmap_pgt + (507*8)(%rip) - - /* - * Fixup the kernel text+data virtual addresses. Note that -@@ -160,8 +156,8 @@ ENTRY(secondary_startup_64) - * after the boot processor executes this code. - */ - -- /* Enable PAE mode and PGE */ -- movl $(X86_CR4_PAE | X86_CR4_PGE), %eax -+ /* Enable PAE mode and PSE/PGE */ -+ movl $(X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE), %eax - movq %rax, %cr4 - - /* Setup early boot stage 4 level pagetables. */ -@@ -183,9 +179,17 @@ ENTRY(secondary_startup_64) - movl $MSR_EFER, %ecx - rdmsr - btsl $_EFER_SCE, %eax /* Enable System Call */ -- btl $20,%edi /* No Execute supported? */ -+ btl $(X86_FEATURE_NX & 31),%edi /* No Execute supported? */ - jnc 1f - btsl $_EFER_NX, %eax -+ leaq init_level4_pgt(%rip), %rdi -+#ifndef CONFIG_EFI -+ btsq $_PAGE_BIT_NX, 8*L4_PAGE_OFFSET(%rdi) -+#endif -+ btsq $_PAGE_BIT_NX, 8*L4_VMALLOC_START(%rdi) -+ btsq $_PAGE_BIT_NX, 8*L4_VMALLOC_END(%rdi) -+ btsq $_PAGE_BIT_NX, 8*L4_VMEMMAP_START(%rdi) -+ btsq $_PAGE_BIT_NX, __supported_pte_mask(%rip) - 1: wrmsr /* Make changes effective */ - - /* Setup cr0 */ -@@ -247,6 +251,7 @@ ENTRY(secondary_startup_64) - * jump. In addition we need to ensure %cs is set so we make this - * a far return. - */ -+ pax_set_fptr_mask - movq initial_code(%rip),%rax - pushq $0 # fake return address to stop unwinder - pushq $__KERNEL_CS # set correct cs -@@ -269,7 +274,7 @@ ENTRY(secondary_startup_64) - bad_address: - jmp bad_address - -- .section ".init.text","ax" -+ __INIT - #ifdef CONFIG_EARLY_PRINTK - .globl early_idt_handlers - early_idt_handlers: -@@ -314,18 +319,23 @@ ENTRY(early_idt_handler) - #endif /* EARLY_PRINTK */ - 1: hlt - jmp 1b -+ .previous - - #ifdef CONFIG_EARLY_PRINTK -+ __INITDATA - early_recursion_flag: - .long 0 -+ .previous - -+ .section .rodata,"a",@progbits - early_idt_msg: - .asciz "PANIC: early exception %02lx rip %lx:%lx error %lx cr2 %lx\n" - early_idt_ripmsg: - .asciz "RIP %s\n" -+ .previous - #endif /* CONFIG_EARLY_PRINTK */ -- .previous - -+ .section .rodata,"a",@progbits - #define NEXT_PAGE(name) \ - .balign PAGE_SIZE; \ - ENTRY(name) -@@ -338,7 +348,6 @@ ENTRY(name) - i = i + 1 ; \ - .endr - -- .data - /* - * This default setting generates an ident mapping at address 0x100000 - * and a mapping for the kernel that precisely maps virtual address -@@ -349,13 +358,41 @@ NEXT_PAGE(init_level4_pgt) - .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE - .org init_level4_pgt + L4_PAGE_OFFSET*8, 0 - .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE -+ .org init_level4_pgt + L4_VMALLOC_START*8, 0 -+ .quad level3_vmalloc_start_pgt - __START_KERNEL_map + _KERNPG_TABLE -+ .org init_level4_pgt + L4_VMALLOC_END*8, 0 -+ .quad level3_vmalloc_end_pgt - __START_KERNEL_map + _KERNPG_TABLE -+ .org init_level4_pgt + L4_VMEMMAP_START*8, 0 -+ .quad level3_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE - .org init_level4_pgt + L4_START_KERNEL*8, 0 - /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */ - .quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE - -+#ifdef CONFIG_PAX_PER_CPU_PGD -+NEXT_PAGE(cpu_pgd) -+ .rept NR_CPUS -+ .fill 512,8,0 -+ .endr -+#endif -+ - NEXT_PAGE(level3_ident_pgt) - .quad level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE -+#ifdef CONFIG_XEN - .fill 511,8,0 -+#else -+ .quad level2_ident_pgt + PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE -+ .fill 510,8,0 -+#endif -+ -+NEXT_PAGE(level3_vmalloc_start_pgt) -+ .fill 512,8,0 -+ -+NEXT_PAGE(level3_vmalloc_end_pgt) -+ .fill 512,8,0 -+ -+NEXT_PAGE(level3_vmemmap_pgt) -+ .fill L3_VMEMMAP_START,8,0 -+ .quad level2_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE - - NEXT_PAGE(level3_kernel_pgt) - .fill L3_START_KERNEL,8,0 -@@ -363,20 +400,23 @@ NEXT_PAGE(level3_kernel_pgt) - .quad level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE - .quad level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE - -+NEXT_PAGE(level2_vmemmap_pgt) -+ .fill 512,8,0 -+ - NEXT_PAGE(level2_fixmap_pgt) -- .fill 506,8,0 -- .quad level1_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE -- /* 8MB reserved for vsyscalls + a 2MB hole = 4 + 1 entries */ -- .fill 5,8,0 -+ .fill 507,8,0 -+ .quad level1_vsyscall_pgt - __START_KERNEL_map + _PAGE_TABLE -+ /* 6MB reserved for vsyscalls + a 2MB hole = 3 + 1 entries */ -+ .fill 4,8,0 - --NEXT_PAGE(level1_fixmap_pgt) -+NEXT_PAGE(level1_vsyscall_pgt) - .fill 512,8,0 - --NEXT_PAGE(level2_ident_pgt) -- /* Since I easily can, map the first 1G. -+ /* Since I easily can, map the first 2G. - * Don't set NX because code runs from these pages. - */ -- PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, PTRS_PER_PMD) -+NEXT_PAGE(level2_ident_pgt) -+ PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, 2*PTRS_PER_PMD) - - NEXT_PAGE(level2_kernel_pgt) - /* -@@ -389,37 +429,59 @@ NEXT_PAGE(level2_kernel_pgt) - * If you want to increase this then increase MODULES_VADDR - * too.) - */ -- PMDS(0, __PAGE_KERNEL_LARGE_EXEC, -- KERNEL_IMAGE_SIZE/PMD_SIZE) -- --NEXT_PAGE(level2_spare_pgt) -- .fill 512, 8, 0 -+ PMDS(0, __PAGE_KERNEL_LARGE_EXEC, KERNEL_IMAGE_SIZE/PMD_SIZE) - - #undef PMDS - #undef NEXT_PAGE - -- .data -+ .align PAGE_SIZE -+ENTRY(cpu_gdt_table) -+ .rept NR_CPUS -+ .quad 0x0000000000000000 /* NULL descriptor */ -+ .quad 0x00cf9b000000ffff /* __KERNEL32_CS */ -+ .quad 0x00af9b000000ffff /* __KERNEL_CS */ -+ .quad 0x00cf93000000ffff /* __KERNEL_DS */ -+ .quad 0x00cffb000000ffff /* __USER32_CS */ -+ .quad 0x00cff3000000ffff /* __USER_DS, __USER32_DS */ -+ .quad 0x00affb000000ffff /* __USER_CS */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ .quad 0x00af9b000000ffff /* __KERNEXEC_KERNEL_CS */ -+#else -+ .quad 0x0 /* unused */ -+#endif -+ -+ .quad 0,0 /* TSS */ -+ .quad 0,0 /* LDT */ -+ .quad 0,0,0 /* three TLS descriptors */ -+ .quad 0x0000f40000000000 /* node/CPU stored in limit */ -+ /* asm/segment.h:GDT_ENTRIES must match this */ -+ -+ /* zero the remaining page */ -+ .fill PAGE_SIZE / 8 - GDT_ENTRIES,8,0 -+ .endr -+ - .align 16 - .globl early_gdt_descr - early_gdt_descr: - .word GDT_ENTRIES*8-1 - early_gdt_descr_base: -- .quad INIT_PER_CPU_VAR(gdt_page) -+ .quad cpu_gdt_table - - ENTRY(phys_base) - /* This must match the first entry in level2_kernel_pgt */ - .quad 0x0000000000000000 - - #include "../../x86/xen/xen-head.S" -- -- .section .bss, "aw", @nobits -+ -+ .section .rodata,"a",@progbits - .align L1_CACHE_BYTES - ENTRY(idt_table) -- .skip IDT_ENTRIES * 16 -+ .fill 512,8,0 - - .align L1_CACHE_BYTES - ENTRY(nmi_idt_table) -- .skip IDT_ENTRIES * 16 -+ .fill 512,8,0 - - __PAGE_ALIGNED_BSS - .align PAGE_SIZE -diff --git a/arch/x86/kernel/i386_ksyms_32.c b/arch/x86/kernel/i386_ksyms_32.c -index 9c3bd4a..e1d9b35 100644 ---- a/arch/x86/kernel/i386_ksyms_32.c -+++ b/arch/x86/kernel/i386_ksyms_32.c -@@ -20,8 +20,12 @@ extern void cmpxchg8b_emu(void); - EXPORT_SYMBOL(cmpxchg8b_emu); - #endif - -+EXPORT_SYMBOL_GPL(cpu_gdt_table); -+ - /* Networking helper routines. */ - EXPORT_SYMBOL(csum_partial_copy_generic); -+EXPORT_SYMBOL(csum_partial_copy_generic_to_user); -+EXPORT_SYMBOL(csum_partial_copy_generic_from_user); - - EXPORT_SYMBOL(__get_user_1); - EXPORT_SYMBOL(__get_user_2); -@@ -36,3 +40,7 @@ EXPORT_SYMBOL(strstr); - - EXPORT_SYMBOL(csum_partial); - EXPORT_SYMBOL(empty_zero_page); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+EXPORT_SYMBOL(__LOAD_PHYSICAL_ADDR); -+#endif -diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c -index 2d6e649..df6e1af 100644 ---- a/arch/x86/kernel/i387.c -+++ b/arch/x86/kernel/i387.c -@@ -59,7 +59,7 @@ static inline bool interrupted_kernel_fpu_idle(void) - static inline bool interrupted_user_mode(void) - { - struct pt_regs *regs = get_irq_regs(); -- return regs && user_mode_vm(regs); -+ return regs && user_mode(regs); - } - - /* -diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c -index 36d1853..bf25736 100644 ---- a/arch/x86/kernel/i8259.c -+++ b/arch/x86/kernel/i8259.c -@@ -209,7 +209,7 @@ spurious_8259A_irq: - "spurious 8259A interrupt: IRQ%d.\n", irq); - spurious_irq_mask |= irqmask; - } -- atomic_inc(&irq_err_count); -+ atomic_inc_unchecked(&irq_err_count); - /* - * Theoretically we do not have to handle this IRQ, - * but in Linux this does not cause problems and is -diff --git a/arch/x86/kernel/init_task.c b/arch/x86/kernel/init_task.c -index 43e9ccf..44ccf6f 100644 ---- a/arch/x86/kernel/init_task.c -+++ b/arch/x86/kernel/init_task.c -@@ -20,8 +20,7 @@ static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); - * way process stacks are handled. This is done by having a special - * "init_task" linker map entry.. - */ --union thread_union init_thread_union __init_task_data = -- { INIT_THREAD_INFO(init_task) }; -+union thread_union init_thread_union __init_task_data; - - /* - * Initial task structure. -@@ -38,5 +37,5 @@ EXPORT_SYMBOL(init_task); - * section. Since TSS's are completely CPU-local, we want them - * on exact cacheline boundaries, to eliminate cacheline ping-pong. - */ --DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS; -- -+struct tss_struct init_tss[NR_CPUS] ____cacheline_internodealigned_in_smp = { [0 ... NR_CPUS-1] = INIT_TSS }; -+EXPORT_SYMBOL(init_tss); -diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c -index 8c96897..be66bfa 100644 ---- a/arch/x86/kernel/ioport.c -+++ b/arch/x86/kernel/ioport.c -@@ -6,6 +6,7 @@ - #include <linux/sched.h> - #include <linux/kernel.h> - #include <linux/capability.h> -+#include <linux/security.h> - #include <linux/errno.h> - #include <linux/types.h> - #include <linux/ioport.h> -@@ -28,6 +29,12 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on) - - if ((from + num <= from) || (from + num > IO_BITMAP_BITS)) - return -EINVAL; -+#ifdef CONFIG_GRKERNSEC_IO -+ if (turn_on && grsec_disable_privio) { -+ gr_handle_ioperm(); -+ return -EPERM; -+ } -+#endif - if (turn_on && !capable(CAP_SYS_RAWIO)) - return -EPERM; - -@@ -54,7 +61,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on) - * because the ->io_bitmap_max value must match the bitmap - * contents: - */ -- tss = &per_cpu(init_tss, get_cpu()); -+ tss = init_tss + get_cpu(); - - if (turn_on) - bitmap_clear(t->io_bitmap_ptr, from, num); -@@ -102,6 +109,12 @@ long sys_iopl(unsigned int level, struct pt_regs *regs) - return -EINVAL; - /* Trying to gain more privileges? */ - if (level > old) { -+#ifdef CONFIG_GRKERNSEC_IO -+ if (grsec_disable_privio) { -+ gr_handle_iopl(); -+ return -EPERM; -+ } -+#endif - if (!capable(CAP_SYS_RAWIO)) - return -EPERM; - } -diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c -index 3dafc60..aa8e9c4 100644 ---- a/arch/x86/kernel/irq.c -+++ b/arch/x86/kernel/irq.c -@@ -18,7 +18,7 @@ - #include <asm/mce.h> - #include <asm/hw_irq.h> - --atomic_t irq_err_count; -+atomic_unchecked_t irq_err_count; - - /* Function pointer for generic interrupt vector handling */ - void (*x86_platform_ipi_callback)(void) = NULL; -@@ -121,9 +121,9 @@ int arch_show_interrupts(struct seq_file *p, int prec) - seq_printf(p, "%10u ", per_cpu(mce_poll_count, j)); - seq_printf(p, " Machine check polls\n"); - #endif -- seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count)); -+ seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read_unchecked(&irq_err_count)); - #if defined(CONFIG_X86_IO_APIC) -- seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read(&irq_mis_count)); -+ seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read_unchecked(&irq_mis_count)); - #endif - return 0; - } -@@ -164,10 +164,10 @@ u64 arch_irq_stat_cpu(unsigned int cpu) - - u64 arch_irq_stat(void) - { -- u64 sum = atomic_read(&irq_err_count); -+ u64 sum = atomic_read_unchecked(&irq_err_count); - - #ifdef CONFIG_X86_IO_APIC -- sum += atomic_read(&irq_mis_count); -+ sum += atomic_read_unchecked(&irq_mis_count); - #endif - return sum; - } -diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c -index 58b7f27..e112d08 100644 ---- a/arch/x86/kernel/irq_32.c -+++ b/arch/x86/kernel/irq_32.c -@@ -39,7 +39,7 @@ static int check_stack_overflow(void) - __asm__ __volatile__("andl %%esp,%0" : - "=r" (sp) : "0" (THREAD_SIZE - 1)); - -- return sp < (sizeof(struct thread_info) + STACK_WARN); -+ return sp < STACK_WARN; - } - - static void print_stack_overflow(void) -@@ -59,8 +59,8 @@ static inline void print_stack_overflow(void) { } - * per-CPU IRQ handling contexts (thread information and stack) - */ - union irq_ctx { -- struct thread_info tinfo; -- u32 stack[THREAD_SIZE/sizeof(u32)]; -+ unsigned long previous_esp; -+ u32 stack[THREAD_SIZE/sizeof(u32)]; - } __attribute__((aligned(THREAD_SIZE))); - - static DEFINE_PER_CPU(union irq_ctx *, hardirq_ctx); -@@ -80,10 +80,9 @@ static void call_on_stack(void *func, void *stack) - static inline int - execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq) - { -- union irq_ctx *curctx, *irqctx; -+ union irq_ctx *irqctx; - u32 *isp, arg1, arg2; - -- curctx = (union irq_ctx *) current_thread_info(); - irqctx = __this_cpu_read(hardirq_ctx); - - /* -@@ -92,16 +91,16 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq) - * handler) we can't do that and just have to keep using the - * current stack (which is the irq stack already after all) - */ -- if (unlikely(curctx == irqctx)) -+ if (unlikely((void *)current_stack_pointer - (void *)irqctx < THREAD_SIZE)) - return 0; - - /* build the stack frame on the IRQ stack */ -- isp = (u32 *) ((char *)irqctx + sizeof(*irqctx)); -- irqctx->tinfo.task = curctx->tinfo.task; -- irqctx->tinfo.previous_esp = current_stack_pointer; -+ isp = (u32 *) ((char *)irqctx + sizeof(*irqctx) - 8); -+ irqctx->previous_esp = current_stack_pointer; - -- /* Copy the preempt_count so that the [soft]irq checks work. */ -- irqctx->tinfo.preempt_count = curctx->tinfo.preempt_count; -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ __set_fs(MAKE_MM_SEG(0)); -+#endif - - if (unlikely(overflow)) - call_on_stack(print_stack_overflow, isp); -@@ -113,6 +112,11 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq) - : "0" (irq), "1" (desc), "2" (isp), - "D" (desc->handle_irq) - : "memory", "cc", "ecx"); -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ __set_fs(current_thread_info()->addr_limit); -+#endif -+ - return 1; - } - -@@ -121,29 +125,11 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq) - */ - void __cpuinit irq_ctx_init(int cpu) - { -- union irq_ctx *irqctx; -- - if (per_cpu(hardirq_ctx, cpu)) - return; - -- irqctx = page_address(alloc_pages_node(cpu_to_node(cpu), -- THREAD_FLAGS, -- THREAD_ORDER)); -- memset(&irqctx->tinfo, 0, sizeof(struct thread_info)); -- irqctx->tinfo.cpu = cpu; -- irqctx->tinfo.preempt_count = HARDIRQ_OFFSET; -- irqctx->tinfo.addr_limit = MAKE_MM_SEG(0); -- -- per_cpu(hardirq_ctx, cpu) = irqctx; -- -- irqctx = page_address(alloc_pages_node(cpu_to_node(cpu), -- THREAD_FLAGS, -- THREAD_ORDER)); -- memset(&irqctx->tinfo, 0, sizeof(struct thread_info)); -- irqctx->tinfo.cpu = cpu; -- irqctx->tinfo.addr_limit = MAKE_MM_SEG(0); -- -- per_cpu(softirq_ctx, cpu) = irqctx; -+ per_cpu(hardirq_ctx, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREAD_FLAGS, THREAD_ORDER)); -+ per_cpu(softirq_ctx, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREAD_FLAGS, THREAD_ORDER)); - - printk(KERN_DEBUG "CPU %u irqstacks, hard=%p soft=%p\n", - cpu, per_cpu(hardirq_ctx, cpu), per_cpu(softirq_ctx, cpu)); -@@ -152,7 +138,6 @@ void __cpuinit irq_ctx_init(int cpu) - asmlinkage void do_softirq(void) - { - unsigned long flags; -- struct thread_info *curctx; - union irq_ctx *irqctx; - u32 *isp; - -@@ -162,15 +147,22 @@ asmlinkage void do_softirq(void) - local_irq_save(flags); - - if (local_softirq_pending()) { -- curctx = current_thread_info(); - irqctx = __this_cpu_read(softirq_ctx); -- irqctx->tinfo.task = curctx->task; -- irqctx->tinfo.previous_esp = current_stack_pointer; -+ irqctx->previous_esp = current_stack_pointer; - - /* build the stack frame on the softirq stack */ -- isp = (u32 *) ((char *)irqctx + sizeof(*irqctx)); -+ isp = (u32 *) ((char *)irqctx + sizeof(*irqctx) - 8); -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ __set_fs(MAKE_MM_SEG(0)); -+#endif - - call_on_stack(__do_softirq, isp); -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ __set_fs(current_thread_info()->addr_limit); -+#endif -+ - /* - * Shouldn't happen, we returned above if in_interrupt(): - */ -@@ -191,7 +183,7 @@ bool handle_irq(unsigned irq, struct pt_regs *regs) - if (unlikely(!desc)) - return false; - -- if (user_mode_vm(regs) || !execute_on_irq_stack(overflow, desc, irq)) { -+ if (user_mode(regs) || !execute_on_irq_stack(overflow, desc, irq)) { - if (unlikely(overflow)) - print_stack_overflow(); - desc->handle_irq(irq, desc); -diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c -index d04d3ec..ea4b374 100644 ---- a/arch/x86/kernel/irq_64.c -+++ b/arch/x86/kernel/irq_64.c -@@ -44,7 +44,7 @@ static inline void stack_overflow_check(struct pt_regs *regs) - u64 estack_top, estack_bottom; - u64 curbase = (u64)task_stack_page(current); - -- if (user_mode_vm(regs)) -+ if (user_mode(regs)) - return; - - if (regs->sp >= curbase + sizeof(struct thread_info) + -diff --git a/arch/x86/kernel/kdebugfs.c b/arch/x86/kernel/kdebugfs.c -index 1d5d31e..ab846ed 100644 ---- a/arch/x86/kernel/kdebugfs.c -+++ b/arch/x86/kernel/kdebugfs.c -@@ -28,6 +28,8 @@ struct setup_data_node { - }; - - static ssize_t setup_data_read(struct file *file, char __user *user_buf, -+ size_t count, loff_t *ppos) __size_overflow(3); -+static ssize_t setup_data_read(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos) - { - struct setup_data_node *node = file->private_data; -diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c -index 8bfb614..2b3b35f 100644 ---- a/arch/x86/kernel/kgdb.c -+++ b/arch/x86/kernel/kgdb.c -@@ -127,11 +127,11 @@ char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs) - #ifdef CONFIG_X86_32 - switch (regno) { - case GDB_SS: -- if (!user_mode_vm(regs)) -+ if (!user_mode(regs)) - *(unsigned long *)mem = __KERNEL_DS; - break; - case GDB_SP: -- if (!user_mode_vm(regs)) -+ if (!user_mode(regs)) - *(unsigned long *)mem = kernel_stack_pointer(regs); - break; - case GDB_GS: -@@ -476,12 +476,12 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code, - case 'k': - /* clear the trace bit */ - linux_regs->flags &= ~X86_EFLAGS_TF; -- atomic_set(&kgdb_cpu_doing_single_step, -1); -+ atomic_set_unchecked(&kgdb_cpu_doing_single_step, -1); - - /* set the trace bit if we're stepping */ - if (remcomInBuffer[0] == 's') { - linux_regs->flags |= X86_EFLAGS_TF; -- atomic_set(&kgdb_cpu_doing_single_step, -+ atomic_set_unchecked(&kgdb_cpu_doing_single_step, - raw_smp_processor_id()); - } - -@@ -546,7 +546,7 @@ static int __kgdb_notify(struct die_args *args, unsigned long cmd) - - switch (cmd) { - case DIE_DEBUG: -- if (atomic_read(&kgdb_cpu_doing_single_step) != -1) { -+ if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1) { - if (user_mode(regs)) - return single_step_cont(regs, args); - break; -diff --git a/arch/x86/kernel/kprobes-opt.c b/arch/x86/kernel/kprobes-opt.c -index c5e410e..da6aaf9 100644 ---- a/arch/x86/kernel/kprobes-opt.c -+++ b/arch/x86/kernel/kprobes-opt.c -@@ -338,7 +338,7 @@ int __kprobes arch_prepare_optimized_kprobe(struct optimized_kprobe *op) - * Verify if the address gap is in 2GB range, because this uses - * a relative jump. - */ -- rel = (long)op->optinsn.insn - (long)op->kp.addr + RELATIVEJUMP_SIZE; -+ rel = (long)op->optinsn.insn - ktla_ktva((long)op->kp.addr) + RELATIVEJUMP_SIZE; - if (abs(rel) > 0x7fffffff) - return -ERANGE; - -@@ -359,11 +359,11 @@ int __kprobes arch_prepare_optimized_kprobe(struct optimized_kprobe *op) - synthesize_set_arg1(buf + TMPL_MOVE_IDX, (unsigned long)op); - - /* Set probe function call */ -- synthesize_relcall(buf + TMPL_CALL_IDX, optimized_callback); -+ synthesize_relcall(buf + TMPL_CALL_IDX, ktla_ktva(optimized_callback)); - - /* Set returning jmp instruction at the tail of out-of-line buffer */ - synthesize_reljump(buf + TMPL_END_IDX + op->optinsn.size, -- (u8 *)op->kp.addr + op->optinsn.size); -+ (u8 *)ktla_ktva(op->kp.addr) + op->optinsn.size); - - flush_icache_range((unsigned long) buf, - (unsigned long) buf + TMPL_END_IDX + -@@ -385,7 +385,7 @@ static void __kprobes setup_optimize_kprobe(struct text_poke_param *tprm, - ((long)op->kp.addr + RELATIVEJUMP_SIZE)); - - /* Backup instructions which will be replaced by jump address */ -- memcpy(op->optinsn.copied_insn, op->kp.addr + INT3_SIZE, -+ memcpy(op->optinsn.copied_insn, ktla_ktva(op->kp.addr) + INT3_SIZE, - RELATIVE_ADDR_SIZE); - - insn_buf[0] = RELATIVEJUMP_OPCODE; -diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c -index e213fc8..d783ba4 100644 ---- a/arch/x86/kernel/kprobes.c -+++ b/arch/x86/kernel/kprobes.c -@@ -120,8 +120,11 @@ static void __kprobes __synthesize_relative_insn(void *from, void *to, u8 op) - } __attribute__((packed)) *insn; - - insn = (struct __arch_relative_insn *)from; -+ -+ pax_open_kernel(); - insn->raddr = (s32)((long)(to) - ((long)(from) + 5)); - insn->op = op; -+ pax_close_kernel(); - } - - /* Insert a jump instruction at address 'from', which jumps to address 'to'.*/ -@@ -164,7 +167,7 @@ int __kprobes can_boost(kprobe_opcode_t *opcodes) - kprobe_opcode_t opcode; - kprobe_opcode_t *orig_opcodes = opcodes; - -- if (search_exception_tables((unsigned long)opcodes)) -+ if (search_exception_tables(ktva_ktla((unsigned long)opcodes))) - return 0; /* Page fault may occur on this address. */ - - retry: -@@ -332,7 +335,9 @@ int __kprobes __copy_instruction(u8 *dest, u8 *src) - /* Another subsystem puts a breakpoint, failed to recover */ - if (insn.opcode.bytes[0] == BREAKPOINT_INSTRUCTION) - return 0; -+ pax_open_kernel(); - memcpy(dest, insn.kaddr, insn.length); -+ pax_close_kernel(); - - #ifdef CONFIG_X86_64 - if (insn_rip_relative(&insn)) { -@@ -355,7 +360,9 @@ int __kprobes __copy_instruction(u8 *dest, u8 *src) - newdisp = (u8 *) src + (s64) insn.displacement.value - (u8 *) dest; - BUG_ON((s64) (s32) newdisp != newdisp); /* Sanity check. */ - disp = (u8 *) dest + insn_offset_displacement(&insn); -+ pax_open_kernel(); - *(s32 *) disp = (s32) newdisp; -+ pax_close_kernel(); - } - #endif - return insn.length; -@@ -485,7 +492,7 @@ setup_singlestep(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *k - * nor set current_kprobe, because it doesn't use single - * stepping. - */ -- regs->ip = (unsigned long)p->ainsn.insn; -+ regs->ip = ktva_ktla((unsigned long)p->ainsn.insn); - preempt_enable_no_resched(); - return; - } -@@ -504,7 +511,7 @@ setup_singlestep(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *k - if (p->opcode == BREAKPOINT_INSTRUCTION) - regs->ip = (unsigned long)p->addr; - else -- regs->ip = (unsigned long)p->ainsn.insn; -+ regs->ip = ktva_ktla((unsigned long)p->ainsn.insn); - } - - /* -@@ -583,7 +590,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs) - setup_singlestep(p, regs, kcb, 0); - return 1; - } -- } else if (*addr != BREAKPOINT_INSTRUCTION) { -+ } else if (*(kprobe_opcode_t *)ktla_ktva((unsigned long)addr) != BREAKPOINT_INSTRUCTION) { - /* - * The breakpoint instruction was removed right - * after we hit it. Another cpu has removed -@@ -628,6 +635,9 @@ static void __used __kprobes kretprobe_trampoline_holder(void) - " movq %rax, 152(%rsp)\n" - RESTORE_REGS_STRING - " popfq\n" -+#ifdef KERNEXEC_PLUGIN -+ " btsq $63,(%rsp)\n" -+#endif - #else - " pushf\n" - SAVE_REGS_STRING -@@ -765,7 +775,7 @@ static void __kprobes - resume_execution(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *kcb) - { - unsigned long *tos = stack_addr(regs); -- unsigned long copy_ip = (unsigned long)p->ainsn.insn; -+ unsigned long copy_ip = ktva_ktla((unsigned long)p->ainsn.insn); - unsigned long orig_ip = (unsigned long)p->addr; - kprobe_opcode_t *insn = p->ainsn.insn; - -@@ -947,7 +957,7 @@ kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, void *d - struct die_args *args = data; - int ret = NOTIFY_DONE; - -- if (args->regs && user_mode_vm(args->regs)) -+ if (args->regs && user_mode(args->regs)) - return ret; - - switch (val) { -diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c -index ebc9873..1b9724b 100644 ---- a/arch/x86/kernel/ldt.c -+++ b/arch/x86/kernel/ldt.c -@@ -66,13 +66,13 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload) - if (reload) { - #ifdef CONFIG_SMP - preempt_disable(); -- load_LDT(pc); -+ load_LDT_nolock(pc); - if (!cpumask_equal(mm_cpumask(current->mm), - cpumask_of(smp_processor_id()))) - smp_call_function(flush_ldt, current->mm, 1); - preempt_enable(); - #else -- load_LDT(pc); -+ load_LDT_nolock(pc); - #endif - } - if (oldsize) { -@@ -94,7 +94,7 @@ static inline int copy_ldt(mm_context_t *new, mm_context_t *old) - return err; - - for (i = 0; i < old->size; i++) -- write_ldt_entry(new->ldt, i, old->ldt + i * LDT_ENTRY_SIZE); -+ write_ldt_entry(new->ldt, i, old->ldt + i); - return 0; - } - -@@ -115,6 +115,24 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm) - retval = copy_ldt(&mm->context, &old_mm->context); - mutex_unlock(&old_mm->context.lock); - } -+ -+ if (tsk == current) { -+ mm->context.vdso = 0; -+ -+#ifdef CONFIG_X86_32 -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ mm->context.user_cs_base = 0UL; -+ mm->context.user_cs_limit = ~0UL; -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP) -+ cpus_clear(mm->context.cpu_user_cs_mask); -+#endif -+ -+#endif -+#endif -+ -+ } -+ - return retval; - } - -@@ -229,6 +247,13 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode) - } - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (ldt_info.contents & MODIFY_LDT_CONTENTS_CODE)) { -+ error = -EINVAL; -+ goto out_unlock; -+ } -+#endif -+ - fill_ldt(&ldt, &ldt_info); - if (oldmode) - ldt.avl = 0; -diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c -index 5b19e4d..6476a76 100644 ---- a/arch/x86/kernel/machine_kexec_32.c -+++ b/arch/x86/kernel/machine_kexec_32.c -@@ -26,7 +26,7 @@ - #include <asm/cacheflush.h> - #include <asm/debugreg.h> - --static void set_idt(void *newidt, __u16 limit) -+static void set_idt(struct desc_struct *newidt, __u16 limit) - { - struct desc_ptr curidt; - -@@ -38,7 +38,7 @@ static void set_idt(void *newidt, __u16 limit) - } - - --static void set_gdt(void *newgdt, __u16 limit) -+static void set_gdt(struct desc_struct *newgdt, __u16 limit) - { - struct desc_ptr curgdt; - -@@ -216,7 +216,7 @@ void machine_kexec(struct kimage *image) - } - - control_page = page_address(image->control_code_page); -- memcpy(control_page, relocate_kernel, KEXEC_CONTROL_CODE_MAX_SIZE); -+ memcpy(control_page, (void *)ktla_ktva((unsigned long)relocate_kernel), KEXEC_CONTROL_CODE_MAX_SIZE); - - relocate_kernel_ptr = control_page; - page_list[PA_CONTROL_PAGE] = __pa(control_page); -diff --git a/arch/x86/kernel/microcode_intel.c b/arch/x86/kernel/microcode_intel.c -index 0327e2b..e43737b 100644 ---- a/arch/x86/kernel/microcode_intel.c -+++ b/arch/x86/kernel/microcode_intel.c -@@ -430,13 +430,13 @@ static enum ucode_state request_microcode_fw(int cpu, struct device *device) - - static int get_ucode_user(void *to, const void *from, size_t n) - { -- return copy_from_user(to, from, n); -+ return copy_from_user(to, (const void __force_user *)from, n); - } - - static enum ucode_state - request_microcode_user(int cpu, const void __user *buf, size_t size) - { -- return generic_load_microcode(cpu, (void *)buf, size, &get_ucode_user); -+ return generic_load_microcode(cpu, (__force_kernel void *)buf, size, &get_ucode_user); - } - - static void microcode_fini_cpu(int cpu) -diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c -index f21fd94..61565cd 100644 ---- a/arch/x86/kernel/module.c -+++ b/arch/x86/kernel/module.c -@@ -35,15 +35,60 @@ - #define DEBUGP(fmt...) - #endif - --void *module_alloc(unsigned long size) -+static inline void *__module_alloc(unsigned long size, pgprot_t prot) - { -- if (PAGE_ALIGN(size) > MODULES_LEN) -+ if (size == 0 || PAGE_ALIGN(size) > MODULES_LEN) - return NULL; - return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END, -- GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC, -+ GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, prot, - -1, __builtin_return_address(0)); - } - -+void *module_alloc(unsigned long size) -+{ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ return __module_alloc(size, PAGE_KERNEL); -+#else -+ return __module_alloc(size, PAGE_KERNEL_EXEC); -+#endif -+ -+} -+ -+#ifdef CONFIG_PAX_KERNEXEC -+#ifdef CONFIG_X86_32 -+void *module_alloc_exec(unsigned long size) -+{ -+ struct vm_struct *area; -+ -+ if (size == 0) -+ return NULL; -+ -+ area = __get_vm_area(size, VM_ALLOC, (unsigned long)&MODULES_EXEC_VADDR, (unsigned long)&MODULES_EXEC_END); -+ return area ? area->addr : NULL; -+} -+EXPORT_SYMBOL(module_alloc_exec); -+ -+void module_free_exec(struct module *mod, void *module_region) -+{ -+ vunmap(module_region); -+} -+EXPORT_SYMBOL(module_free_exec); -+#else -+void module_free_exec(struct module *mod, void *module_region) -+{ -+ module_free(mod, module_region); -+} -+EXPORT_SYMBOL(module_free_exec); -+ -+void *module_alloc_exec(unsigned long size) -+{ -+ return __module_alloc(size, PAGE_KERNEL_RX); -+} -+EXPORT_SYMBOL(module_alloc_exec); -+#endif -+#endif -+ - #ifdef CONFIG_X86_32 - int apply_relocate(Elf32_Shdr *sechdrs, - const char *strtab, -@@ -54,14 +99,16 @@ int apply_relocate(Elf32_Shdr *sechdrs, - unsigned int i; - Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr; - Elf32_Sym *sym; -- uint32_t *location; -+ uint32_t *plocation, location; - - DEBUGP("Applying relocate section %u to %u\n", relsec, - sechdrs[relsec].sh_info); - for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { - /* This is where to make the change */ -- location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr -- + rel[i].r_offset; -+ plocation = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr + rel[i].r_offset; -+ location = (uint32_t)plocation; -+ if (sechdrs[sechdrs[relsec].sh_info].sh_flags & SHF_EXECINSTR) -+ plocation = ktla_ktva((void *)plocation); - /* This is the symbol it is referring to. Note that all - undefined symbols have been resolved. */ - sym = (Elf32_Sym *)sechdrs[symindex].sh_addr -@@ -70,11 +117,15 @@ int apply_relocate(Elf32_Shdr *sechdrs, - switch (ELF32_R_TYPE(rel[i].r_info)) { - case R_386_32: - /* We add the value into the location given */ -- *location += sym->st_value; -+ pax_open_kernel(); -+ *plocation += sym->st_value; -+ pax_close_kernel(); - break; - case R_386_PC32: - /* Add the value, subtract its postition */ -- *location += sym->st_value - (uint32_t)location; -+ pax_open_kernel(); -+ *plocation += sym->st_value - location; -+ pax_close_kernel(); - break; - default: - printk(KERN_ERR "module %s: Unknown relocation: %u\n", -@@ -119,21 +170,30 @@ int apply_relocate_add(Elf64_Shdr *sechdrs, - case R_X86_64_NONE: - break; - case R_X86_64_64: -+ pax_open_kernel(); - *(u64 *)loc = val; -+ pax_close_kernel(); - break; - case R_X86_64_32: -+ pax_open_kernel(); - *(u32 *)loc = val; -+ pax_close_kernel(); - if (val != *(u32 *)loc) - goto overflow; - break; - case R_X86_64_32S: -+ pax_open_kernel(); - *(s32 *)loc = val; -+ pax_close_kernel(); - if ((s64)val != *(s32 *)loc) - goto overflow; - break; - case R_X86_64_PC32: - val -= (u64)loc; -+ pax_open_kernel(); - *(u32 *)loc = val; -+ pax_close_kernel(); -+ - #if 0 - if ((s64)val != *(s32 *)loc) - goto overflow; -diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c -index 32856fa..ce95eaa 100644 ---- a/arch/x86/kernel/nmi.c -+++ b/arch/x86/kernel/nmi.c -@@ -507,6 +507,17 @@ static inline void nmi_nesting_postprocess(void) - dotraplinkage notrace __kprobes void - do_nmi(struct pt_regs *regs, long error_code) - { -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ if (!user_mode(regs)) { -+ unsigned long cs = regs->cs & 0xFFFF; -+ unsigned long ip = ktva_ktla(regs->ip); -+ -+ if ((cs == __KERNEL_CS || cs == __KERNEXEC_KERNEL_CS) && ip <= (unsigned long)_etext) -+ regs->ip = ip; -+ } -+#endif -+ - nmi_nesting_preprocess(regs); - - nmi_enter(); -diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c -index 676b8c7..870ba04 100644 ---- a/arch/x86/kernel/paravirt-spinlocks.c -+++ b/arch/x86/kernel/paravirt-spinlocks.c -@@ -13,7 +13,7 @@ default_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags) - arch_spin_lock(lock); - } - --struct pv_lock_ops pv_lock_ops = { -+struct pv_lock_ops pv_lock_ops __read_only = { - #ifdef CONFIG_SMP - .spin_is_locked = __ticket_spin_is_locked, - .spin_is_contended = __ticket_spin_is_contended, -diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c -index ab13760..01218e0 100644 ---- a/arch/x86/kernel/paravirt.c -+++ b/arch/x86/kernel/paravirt.c -@@ -55,6 +55,9 @@ u64 _paravirt_ident_64(u64 x) - { - return x; - } -+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE) -+PV_CALLEE_SAVE_REGS_THUNK(_paravirt_ident_64); -+#endif - - void __init default_banner(void) - { -@@ -147,15 +150,19 @@ unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf, - if (opfunc == NULL) - /* If there's no function, patch it with a ud2a (BUG) */ - ret = paravirt_patch_insns(insnbuf, len, ud2a, ud2a+sizeof(ud2a)); -- else if (opfunc == _paravirt_nop) -+ else if (opfunc == (void *)_paravirt_nop) - /* If the operation is a nop, then nop the callsite */ - ret = paravirt_patch_nop(); - - /* identity functions just return their single argument */ -- else if (opfunc == _paravirt_ident_32) -+ else if (opfunc == (void *)_paravirt_ident_32) - ret = paravirt_patch_ident_32(insnbuf, len); -- else if (opfunc == _paravirt_ident_64) -+ else if (opfunc == (void *)_paravirt_ident_64) - ret = paravirt_patch_ident_64(insnbuf, len); -+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE) -+ else if (opfunc == (void *)__raw_callee_save__paravirt_ident_64) -+ ret = paravirt_patch_ident_64(insnbuf, len); -+#endif - - else if (type == PARAVIRT_PATCH(pv_cpu_ops.iret) || - type == PARAVIRT_PATCH(pv_cpu_ops.irq_enable_sysexit) || -@@ -180,7 +187,7 @@ unsigned paravirt_patch_insns(void *insnbuf, unsigned len, - if (insn_len > len || start == NULL) - insn_len = len; - else -- memcpy(insnbuf, start, insn_len); -+ memcpy(insnbuf, ktla_ktva(start), insn_len); - - return insn_len; - } -@@ -304,7 +311,7 @@ void arch_flush_lazy_mmu_mode(void) - preempt_enable(); - } - --struct pv_info pv_info = { -+struct pv_info pv_info __read_only = { - .name = "bare hardware", - .paravirt_enabled = 0, - .kernel_rpl = 0, -@@ -315,16 +322,16 @@ struct pv_info pv_info = { - #endif - }; - --struct pv_init_ops pv_init_ops = { -+struct pv_init_ops pv_init_ops __read_only = { - .patch = native_patch, - }; - --struct pv_time_ops pv_time_ops = { -+struct pv_time_ops pv_time_ops __read_only = { - .sched_clock = native_sched_clock, - .steal_clock = native_steal_clock, - }; - --struct pv_irq_ops pv_irq_ops = { -+struct pv_irq_ops pv_irq_ops __read_only = { - .save_fl = __PV_IS_CALLEE_SAVE(native_save_fl), - .restore_fl = __PV_IS_CALLEE_SAVE(native_restore_fl), - .irq_disable = __PV_IS_CALLEE_SAVE(native_irq_disable), -@@ -336,7 +343,7 @@ struct pv_irq_ops pv_irq_ops = { - #endif - }; - --struct pv_cpu_ops pv_cpu_ops = { -+struct pv_cpu_ops pv_cpu_ops __read_only = { - .cpuid = native_cpuid, - .get_debugreg = native_get_debugreg, - .set_debugreg = native_set_debugreg, -@@ -397,21 +404,26 @@ struct pv_cpu_ops pv_cpu_ops = { - .end_context_switch = paravirt_nop, - }; - --struct pv_apic_ops pv_apic_ops = { -+struct pv_apic_ops pv_apic_ops __read_only = { - #ifdef CONFIG_X86_LOCAL_APIC - .startup_ipi_hook = paravirt_nop, - #endif - }; - --#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE) -+#ifdef CONFIG_X86_32 -+#ifdef CONFIG_X86_PAE -+/* 64-bit pagetable entries */ -+#define PTE_IDENT PV_CALLEE_SAVE(_paravirt_ident_64) -+#else - /* 32-bit pagetable entries */ - #define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_32) -+#endif - #else - /* 64-bit pagetable entries */ - #define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_64) - #endif - --struct pv_mmu_ops pv_mmu_ops = { -+struct pv_mmu_ops pv_mmu_ops __read_only = { - - .read_cr2 = native_read_cr2, - .write_cr2 = native_write_cr2, -@@ -461,6 +473,7 @@ struct pv_mmu_ops pv_mmu_ops = { - .make_pud = PTE_IDENT, - - .set_pgd = native_set_pgd, -+ .set_pgd_batched = native_set_pgd_batched, - #endif - #endif /* PAGETABLE_LEVELS >= 3 */ - -@@ -480,6 +493,12 @@ struct pv_mmu_ops pv_mmu_ops = { - }, - - .set_fixmap = native_set_fixmap, -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ .pax_open_kernel = native_pax_open_kernel, -+ .pax_close_kernel = native_pax_close_kernel, -+#endif -+ - }; - - EXPORT_SYMBOL_GPL(pv_time_ops); -diff --git a/arch/x86/kernel/pci-iommu_table.c b/arch/x86/kernel/pci-iommu_table.c -index 35ccf75..7a15747 100644 ---- a/arch/x86/kernel/pci-iommu_table.c -+++ b/arch/x86/kernel/pci-iommu_table.c -@@ -2,7 +2,7 @@ - #include <asm/iommu_table.h> - #include <linux/string.h> - #include <linux/kallsyms.h> -- -+#include <linux/sched.h> - - #define DEBUG 1 - -diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c -index 1d92a5a..7bc8c29 100644 ---- a/arch/x86/kernel/process.c -+++ b/arch/x86/kernel/process.c -@@ -69,16 +69,33 @@ void free_thread_xstate(struct task_struct *tsk) - - void free_thread_info(struct thread_info *ti) - { -- free_thread_xstate(ti->task); - free_pages((unsigned long)ti, THREAD_ORDER); - } - -+static struct kmem_cache *task_struct_cachep; -+ - void arch_task_cache_init(void) - { -- task_xstate_cachep = -- kmem_cache_create("task_xstate", xstate_size, -+ /* create a slab on which task_structs can be allocated */ -+ task_struct_cachep = -+ kmem_cache_create("task_struct", sizeof(struct task_struct), -+ ARCH_MIN_TASKALIGN, SLAB_PANIC | SLAB_NOTRACK, NULL); -+ -+ task_xstate_cachep = -+ kmem_cache_create("task_xstate", xstate_size, - __alignof__(union thread_xstate), -- SLAB_PANIC | SLAB_NOTRACK, NULL); -+ SLAB_PANIC | SLAB_NOTRACK | SLAB_USERCOPY, NULL); -+} -+ -+struct task_struct *alloc_task_struct_node(int node) -+{ -+ return kmem_cache_alloc_node(task_struct_cachep, GFP_KERNEL, node); -+} -+ -+void free_task_struct(struct task_struct *task) -+{ -+ free_thread_xstate(task); -+ kmem_cache_free(task_struct_cachep, task); - } - - /* -@@ -91,7 +108,7 @@ void exit_thread(void) - unsigned long *bp = t->io_bitmap_ptr; - - if (bp) { -- struct tss_struct *tss = &per_cpu(init_tss, get_cpu()); -+ struct tss_struct *tss = init_tss + get_cpu(); - - t->io_bitmap_ptr = NULL; - clear_thread_flag(TIF_IO_BITMAP); -@@ -127,7 +144,7 @@ void show_regs_common(void) - - printk(KERN_CONT "\n"); - printk(KERN_DEFAULT "Pid: %d, comm: %.20s %s %s %.*s", -- current->pid, current->comm, print_tainted(), -+ task_pid_nr(current), current->comm, print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); -@@ -141,6 +158,9 @@ void flush_thread(void) - { - struct task_struct *tsk = current; - -+#if defined(CONFIG_X86_32) && !defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_PAX_MEMORY_UDEREF) -+ loadsegment(gs, 0); -+#endif - flush_ptrace_hw_breakpoint(tsk); - memset(tsk->thread.tls_array, 0, sizeof(tsk->thread.tls_array)); - /* -@@ -303,10 +323,10 @@ int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags) - regs.di = (unsigned long) arg; - - #ifdef CONFIG_X86_32 -- regs.ds = __USER_DS; -- regs.es = __USER_DS; -+ regs.ds = __KERNEL_DS; -+ regs.es = __KERNEL_DS; - regs.fs = __KERNEL_PERCPU; -- regs.gs = __KERNEL_STACK_CANARY; -+ savesegment(gs, regs.gs); - #else - regs.ss = __KERNEL_DS; - #endif -@@ -392,7 +412,7 @@ static void __exit_idle(void) - void exit_idle(void) - { - /* idle loop has pid 0 */ -- if (current->pid) -+ if (task_pid_nr(current)) - return; - __exit_idle(); - } -@@ -501,7 +521,7 @@ bool set_pm_idle_to_default(void) - - return ret; - } --void stop_this_cpu(void *dummy) -+__noreturn void stop_this_cpu(void *dummy) - { - local_irq_disable(); - /* -@@ -743,16 +763,37 @@ static int __init idle_setup(char *str) - } - early_param("idle", idle_setup); - --unsigned long arch_align_stack(unsigned long sp) -+#ifdef CONFIG_PAX_RANDKSTACK -+void pax_randomize_kstack(struct pt_regs *regs) - { -- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) -- sp -= get_random_int() % 8192; -- return sp & ~0xf; --} -+ struct thread_struct *thread = &current->thread; -+ unsigned long time; - --unsigned long arch_randomize_brk(struct mm_struct *mm) --{ -- unsigned long range_end = mm->brk + 0x02000000; -- return randomize_range(mm->brk, range_end, 0) ? : mm->brk; --} -+ if (!randomize_va_space) -+ return; -+ -+ if (v8086_mode(regs)) -+ return; - -+ rdtscl(time); -+ -+ /* P4 seems to return a 0 LSB, ignore it */ -+#ifdef CONFIG_MPENTIUM4 -+ time &= 0x3EUL; -+ time <<= 2; -+#elif defined(CONFIG_X86_64) -+ time &= 0xFUL; -+ time <<= 4; -+#else -+ time &= 0x1FUL; -+ time <<= 3; -+#endif -+ -+ thread->sp0 ^= time; -+ load_sp0(init_tss + smp_processor_id(), thread); -+ -+#ifdef CONFIG_X86_64 -+ percpu_write(kernel_stack, thread->sp0); -+#endif -+} -+#endif -diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c -index ae68473..7b0bb71 100644 ---- a/arch/x86/kernel/process_32.c -+++ b/arch/x86/kernel/process_32.c -@@ -64,6 +64,7 @@ asmlinkage void ret_from_fork(void) __asm__("ret_from_fork"); - unsigned long thread_saved_pc(struct task_struct *tsk) - { - return ((unsigned long *)tsk->thread.sp)[3]; -+//XXX return tsk->thread.eip; - } - - void __show_regs(struct pt_regs *regs, int all) -@@ -73,15 +74,14 @@ void __show_regs(struct pt_regs *regs, int all) - unsigned long sp; - unsigned short ss, gs; - -- if (user_mode_vm(regs)) { -+ if (user_mode(regs)) { - sp = regs->sp; - ss = regs->ss & 0xffff; -- gs = get_user_gs(regs); - } else { - sp = kernel_stack_pointer(regs); - savesegment(ss, ss); -- savesegment(gs, gs); - } -+ gs = get_user_gs(regs); - - show_regs_common(); - -@@ -143,13 +143,14 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, - struct task_struct *tsk; - int err; - -- childregs = task_pt_regs(p); -+ childregs = task_stack_page(p) + THREAD_SIZE - sizeof(struct pt_regs) - 8; - *childregs = *regs; - childregs->ax = 0; - childregs->sp = sp; - - p->thread.sp = (unsigned long) childregs; - p->thread.sp0 = (unsigned long) (childregs+1); -+ p->tinfo.lowest_stack = (unsigned long)task_stack_page(p); - - p->thread.ip = (unsigned long) ret_from_fork; - -@@ -240,7 +241,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) - struct thread_struct *prev = &prev_p->thread, - *next = &next_p->thread; - int cpu = smp_processor_id(); -- struct tss_struct *tss = &per_cpu(init_tss, cpu); -+ struct tss_struct *tss = init_tss + cpu; - fpu_switch_t fpu; - - /* never put a printk in __switch_to... printk() calls wake_up*() indirectly */ -@@ -264,6 +265,10 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) - */ - lazy_save_gs(prev->gs); - -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ __set_fs(task_thread_info(next_p)->addr_limit); -+#endif -+ - /* - * Load the per-thread Thread-Local Storage descriptor. - */ -@@ -294,6 +299,9 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) - */ - arch_end_context_switch(next_p); - -+ percpu_write(current_task, next_p); -+ percpu_write(current_tinfo, &next_p->tinfo); -+ - /* - * Restore %gs if needed (which is common) - */ -@@ -302,8 +310,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) - - switch_fpu_finish(next_p, fpu); - -- percpu_write(current_task, next_p); -- - return prev_p; - } - -@@ -333,4 +339,3 @@ unsigned long get_wchan(struct task_struct *p) - } while (count++ < 16); - return 0; - } -- -diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c -index 43d8b48..c45d566 100644 ---- a/arch/x86/kernel/process_64.c -+++ b/arch/x86/kernel/process_64.c -@@ -162,8 +162,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, - struct pt_regs *childregs; - struct task_struct *me = current; - -- childregs = ((struct pt_regs *) -- (THREAD_SIZE + task_stack_page(p))) - 1; -+ childregs = task_stack_page(p) + THREAD_SIZE - sizeof(struct pt_regs) - 16; - *childregs = *regs; - - childregs->ax = 0; -@@ -175,6 +174,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, - p->thread.sp = (unsigned long) childregs; - p->thread.sp0 = (unsigned long) (childregs+1); - p->thread.usersp = me->thread.usersp; -+ p->tinfo.lowest_stack = (unsigned long)task_stack_page(p); - - set_tsk_thread_flag(p, TIF_FORK); - -@@ -280,7 +280,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) - struct thread_struct *prev = &prev_p->thread; - struct thread_struct *next = &next_p->thread; - int cpu = smp_processor_id(); -- struct tss_struct *tss = &per_cpu(init_tss, cpu); -+ struct tss_struct *tss = init_tss + cpu; - unsigned fsindex, gsindex; - fpu_switch_t fpu; - -@@ -362,10 +362,9 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) - prev->usersp = percpu_read(old_rsp); - percpu_write(old_rsp, next->usersp); - percpu_write(current_task, next_p); -+ percpu_write(current_tinfo, &next_p->tinfo); - -- percpu_write(kernel_stack, -- (unsigned long)task_stack_page(next_p) + -- THREAD_SIZE - KERNEL_STACK_OFFSET); -+ percpu_write(kernel_stack, next->sp0); - - /* - * Now maybe reload the debug registers and handle I/O bitmaps -@@ -434,12 +433,11 @@ unsigned long get_wchan(struct task_struct *p) - if (!p || p == current || p->state == TASK_RUNNING) - return 0; - stack = (unsigned long)task_stack_page(p); -- if (p->thread.sp < stack || p->thread.sp >= stack+THREAD_SIZE) -+ if (p->thread.sp < stack || p->thread.sp > stack+THREAD_SIZE-16-sizeof(u64)) - return 0; - fp = *(u64 *)(p->thread.sp); - do { -- if (fp < (unsigned long)stack || -- fp >= (unsigned long)stack+THREAD_SIZE) -+ if (fp < stack || fp > stack+THREAD_SIZE-16-sizeof(u64)) - return 0; - ip = *(u64 *)(fp+8); - if (!in_sched_functions(ip)) -diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c -index cf11783..e7ce551 100644 ---- a/arch/x86/kernel/ptrace.c -+++ b/arch/x86/kernel/ptrace.c -@@ -824,7 +824,7 @@ long arch_ptrace(struct task_struct *child, long request, - unsigned long addr, unsigned long data) - { - int ret; -- unsigned long __user *datap = (unsigned long __user *)data; -+ unsigned long __user *datap = (__force unsigned long __user *)data; - - switch (request) { - /* read the word at location addr in the USER area. */ -@@ -909,14 +909,14 @@ long arch_ptrace(struct task_struct *child, long request, - if ((int) addr < 0) - return -EIO; - ret = do_get_thread_area(child, addr, -- (struct user_desc __user *)data); -+ (__force struct user_desc __user *) data); - break; - - case PTRACE_SET_THREAD_AREA: - if ((int) addr < 0) - return -EIO; - ret = do_set_thread_area(child, addr, -- (struct user_desc __user *)data, 0); -+ (__force struct user_desc __user *) data, 0); - break; - #endif - -@@ -1426,7 +1426,7 @@ static void fill_sigtrap_info(struct task_struct *tsk, - memset(info, 0, sizeof(*info)); - info->si_signo = SIGTRAP; - info->si_code = si_code; -- info->si_addr = user_mode_vm(regs) ? (void __user *)regs->ip : NULL; -+ info->si_addr = user_mode(regs) ? (__force void __user *)regs->ip : NULL; - } - - void user_single_step_siginfo(struct task_struct *tsk, -@@ -1455,6 +1455,10 @@ void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, - # define IS_IA32 0 - #endif - -+#ifdef CONFIG_GRKERNSEC_SETXID -+extern void gr_delayed_cred_worker(void); -+#endif -+ - /* - * We must return the syscall number to actually look up in the table. - * This can be -1L to skip running any syscall at all. -@@ -1463,6 +1467,11 @@ long syscall_trace_enter(struct pt_regs *regs) - { - long ret = 0; - -+#ifdef CONFIG_GRKERNSEC_SETXID -+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID))) -+ gr_delayed_cred_worker(); -+#endif -+ - /* - * If we stepped into a sysenter/syscall insn, it trapped in - * kernel mode; do_debug() cleared TF and set TIF_SINGLESTEP. -@@ -1506,6 +1515,11 @@ void syscall_trace_leave(struct pt_regs *regs) - { - bool step; - -+#ifdef CONFIG_GRKERNSEC_SETXID -+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID))) -+ gr_delayed_cred_worker(); -+#endif -+ - audit_syscall_exit(regs); - - if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT))) -diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c -index 42eb330..139955c 100644 ---- a/arch/x86/kernel/pvclock.c -+++ b/arch/x86/kernel/pvclock.c -@@ -81,11 +81,11 @@ unsigned long pvclock_tsc_khz(struct pvclock_vcpu_time_info *src) - return pv_tsc_khz; - } - --static atomic64_t last_value = ATOMIC64_INIT(0); -+static atomic64_unchecked_t last_value = ATOMIC64_INIT(0); - - void pvclock_resume(void) - { -- atomic64_set(&last_value, 0); -+ atomic64_set_unchecked(&last_value, 0); - } - - cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src) -@@ -121,11 +121,11 @@ cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src) - * updating at the same time, and one of them could be slightly behind, - * making the assumption that last_value always go forward fail to hold. - */ -- last = atomic64_read(&last_value); -+ last = atomic64_read_unchecked(&last_value); - do { - if (ret < last) - return last; -- last = atomic64_cmpxchg(&last_value, last, ret); -+ last = atomic64_cmpxchg_unchecked(&last_value, last, ret); - } while (unlikely(last != ret)); - - return ret; -diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c -index d840e69..98e9581 100644 ---- a/arch/x86/kernel/reboot.c -+++ b/arch/x86/kernel/reboot.c -@@ -35,7 +35,7 @@ void (*pm_power_off)(void); - EXPORT_SYMBOL(pm_power_off); - - static const struct desc_ptr no_idt = {}; --static int reboot_mode; -+static unsigned short reboot_mode; - enum reboot_type reboot_type = BOOT_ACPI; - int reboot_force; - -@@ -335,13 +335,17 @@ core_initcall(reboot_init); - extern const unsigned char machine_real_restart_asm[]; - extern const u64 machine_real_restart_gdt[3]; - --void machine_real_restart(unsigned int type) -+__noreturn void machine_real_restart(unsigned int type) - { - void *restart_va; - unsigned long restart_pa; -- void (*restart_lowmem)(unsigned int); -+ void (* __noreturn restart_lowmem)(unsigned int); - u64 *lowmem_gdt; - -+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)) -+ struct desc_struct *gdt; -+#endif -+ - local_irq_disable(); - - /* Write zero to CMOS register number 0x0f, which the BIOS POST -@@ -367,14 +371,14 @@ void machine_real_restart(unsigned int type) - boot)". This seems like a fairly standard thing that gets set by - REBOOT.COM programs, and the previous reset routine did this - too. */ -- *((unsigned short *)0x472) = reboot_mode; -+ *(unsigned short *)(__va(0x472)) = reboot_mode; - - /* Patch the GDT in the low memory trampoline */ - lowmem_gdt = TRAMPOLINE_SYM(machine_real_restart_gdt); - - restart_va = TRAMPOLINE_SYM(machine_real_restart_asm); - restart_pa = virt_to_phys(restart_va); -- restart_lowmem = (void (*)(unsigned int))restart_pa; -+ restart_lowmem = (void *)restart_pa; - - /* GDT[0]: GDT self-pointer */ - lowmem_gdt[0] = -@@ -385,7 +389,33 @@ void machine_real_restart(unsigned int type) - GDT_ENTRY(0x009b, restart_pa, 0xffff); - - /* Jump to the identity-mapped low memory code */ -+ -+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)) -+ gdt = get_cpu_gdt_table(smp_processor_id()); -+ pax_open_kernel(); -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ gdt[GDT_ENTRY_KERNEL_DS].type = 3; -+ gdt[GDT_ENTRY_KERNEL_DS].limit = 0xf; -+ asm("mov %0, %%ds; mov %0, %%es; mov %0, %%ss" : : "r" (__KERNEL_DS) : "memory"); -+#endif -+#ifdef CONFIG_PAX_KERNEXEC -+ gdt[GDT_ENTRY_KERNEL_CS].base0 = 0; -+ gdt[GDT_ENTRY_KERNEL_CS].base1 = 0; -+ gdt[GDT_ENTRY_KERNEL_CS].base2 = 0; -+ gdt[GDT_ENTRY_KERNEL_CS].limit0 = 0xffff; -+ gdt[GDT_ENTRY_KERNEL_CS].limit = 0xf; -+ gdt[GDT_ENTRY_KERNEL_CS].g = 1; -+#endif -+ pax_close_kernel(); -+#endif -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ asm volatile("push %0; push %1; lret\n" : : "i" (__KERNEL_CS), "rm" (restart_lowmem), "a" (type)); -+ unreachable(); -+#else - restart_lowmem(type); -+#endif -+ - } - #ifdef CONFIG_APM_MODULE - EXPORT_SYMBOL(machine_real_restart); -@@ -556,7 +586,7 @@ void __attribute__((weak)) mach_reboot_fixups(void) - * try to force a triple fault and then cycle between hitting the keyboard - * controller and doing that - */ --static void native_machine_emergency_restart(void) -+__noreturn static void native_machine_emergency_restart(void) - { - int i; - int attempt = 0; -@@ -680,13 +710,13 @@ void native_machine_shutdown(void) - #endif - } - --static void __machine_emergency_restart(int emergency) -+static __noreturn void __machine_emergency_restart(int emergency) - { - reboot_emergency = emergency; - machine_ops.emergency_restart(); - } - --static void native_machine_restart(char *__unused) -+static __noreturn void native_machine_restart(char *__unused) - { - printk("machine restart\n"); - -@@ -695,7 +725,7 @@ static void native_machine_restart(char *__unused) - __machine_emergency_restart(0); - } - --static void native_machine_halt(void) -+static __noreturn void native_machine_halt(void) - { - /* stop other cpus and apics */ - machine_shutdown(); -@@ -706,7 +736,7 @@ static void native_machine_halt(void) - stop_this_cpu(NULL); - } - --static void native_machine_power_off(void) -+__noreturn static void native_machine_power_off(void) - { - if (pm_power_off) { - if (!reboot_force) -@@ -715,6 +745,7 @@ static void native_machine_power_off(void) - } - /* a fallback in case there is no PM info available */ - tboot_shutdown(TB_SHUTDOWN_HALT); -+ unreachable(); - } - - struct machine_ops machine_ops = { -diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S -index 7a6f3b3..bed145d7 100644 ---- a/arch/x86/kernel/relocate_kernel_64.S -+++ b/arch/x86/kernel/relocate_kernel_64.S -@@ -11,6 +11,7 @@ - #include <asm/kexec.h> - #include <asm/processor-flags.h> - #include <asm/pgtable_types.h> -+#include <asm/alternative-asm.h> - - /* - * Must be relocatable PIC code callable as a C function -@@ -160,13 +161,14 @@ identity_mapped: - xorq %rbp, %rbp - xorq %r8, %r8 - xorq %r9, %r9 -- xorq %r10, %r9 -+ xorq %r10, %r10 - xorq %r11, %r11 - xorq %r12, %r12 - xorq %r13, %r13 - xorq %r14, %r14 - xorq %r15, %r15 - -+ pax_force_retaddr 0, 1 - ret - - 1: -diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c -index 1a29015..712f324 100644 ---- a/arch/x86/kernel/setup.c -+++ b/arch/x86/kernel/setup.c -@@ -447,7 +447,7 @@ static void __init parse_setup_data(void) - - switch (data->type) { - case SETUP_E820_EXT: -- parse_e820_ext(data); -+ parse_e820_ext((struct setup_data __force_kernel *)data); - break; - case SETUP_DTB: - add_dtb(pa_data); -@@ -639,7 +639,7 @@ static void __init trim_bios_range(void) - * area (640->1Mb) as ram even though it is not. - * take them out. - */ -- e820_remove_range(BIOS_BEGIN, BIOS_END - BIOS_BEGIN, E820_RAM, 1); -+ e820_remove_range(ISA_START_ADDRESS, ISA_END_ADDRESS - ISA_START_ADDRESS, E820_RAM, 1); - sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map); - } - -@@ -763,14 +763,14 @@ void __init setup_arch(char **cmdline_p) - - if (!boot_params.hdr.root_flags) - root_mountflags &= ~MS_RDONLY; -- init_mm.start_code = (unsigned long) _text; -- init_mm.end_code = (unsigned long) _etext; -+ init_mm.start_code = ktla_ktva((unsigned long) _text); -+ init_mm.end_code = ktla_ktva((unsigned long) _etext); - init_mm.end_data = (unsigned long) _edata; - init_mm.brk = _brk_end; - -- code_resource.start = virt_to_phys(_text); -- code_resource.end = virt_to_phys(_etext)-1; -- data_resource.start = virt_to_phys(_etext); -+ code_resource.start = virt_to_phys(ktla_ktva(_text)); -+ code_resource.end = virt_to_phys(ktla_ktva(_etext))-1; -+ data_resource.start = virt_to_phys(_sdata); - data_resource.end = virt_to_phys(_edata)-1; - bss_resource.start = virt_to_phys(&__bss_start); - bss_resource.end = virt_to_phys(&__bss_stop)-1; -diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c -index 5a98aa2..2f9288d 100644 ---- a/arch/x86/kernel/setup_percpu.c -+++ b/arch/x86/kernel/setup_percpu.c -@@ -21,19 +21,17 @@ - #include <asm/cpu.h> - #include <asm/stackprotector.h> - --DEFINE_PER_CPU(int, cpu_number); -+#ifdef CONFIG_SMP -+DEFINE_PER_CPU(unsigned int, cpu_number); - EXPORT_PER_CPU_SYMBOL(cpu_number); -+#endif - --#ifdef CONFIG_X86_64 - #define BOOT_PERCPU_OFFSET ((unsigned long)__per_cpu_load) --#else --#define BOOT_PERCPU_OFFSET 0 --#endif - - DEFINE_PER_CPU(unsigned long, this_cpu_off) = BOOT_PERCPU_OFFSET; - EXPORT_PER_CPU_SYMBOL(this_cpu_off); - --unsigned long __per_cpu_offset[NR_CPUS] __read_mostly = { -+unsigned long __per_cpu_offset[NR_CPUS] __read_only = { - [0 ... NR_CPUS-1] = BOOT_PERCPU_OFFSET, - }; - EXPORT_SYMBOL(__per_cpu_offset); -@@ -155,10 +153,10 @@ static inline void setup_percpu_segment(int cpu) - { - #ifdef CONFIG_X86_32 - struct desc_struct gdt; -+ unsigned long base = per_cpu_offset(cpu); - -- pack_descriptor(&gdt, per_cpu_offset(cpu), 0xFFFFF, -- 0x2 | DESCTYPE_S, 0x8); -- gdt.s = 1; -+ pack_descriptor(&gdt, base, (VMALLOC_END - base - 1) >> PAGE_SHIFT, -+ 0x83 | DESCTYPE_S, 0xC); - write_gdt_entry(get_cpu_gdt_table(cpu), - GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S); - #endif -@@ -219,6 +217,11 @@ void __init setup_per_cpu_areas(void) - /* alrighty, percpu areas up and running */ - delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start; - for_each_possible_cpu(cpu) { -+#ifdef CONFIG_CC_STACKPROTECTOR -+#ifdef CONFIG_X86_32 -+ unsigned long canary = per_cpu(stack_canary.canary, cpu); -+#endif -+#endif - per_cpu_offset(cpu) = delta + pcpu_unit_offsets[cpu]; - per_cpu(this_cpu_off, cpu) = per_cpu_offset(cpu); - per_cpu(cpu_number, cpu) = cpu; -@@ -259,6 +262,12 @@ void __init setup_per_cpu_areas(void) - */ - set_cpu_numa_node(cpu, early_cpu_to_node(cpu)); - #endif -+#ifdef CONFIG_CC_STACKPROTECTOR -+#ifdef CONFIG_X86_32 -+ if (!cpu) -+ per_cpu(stack_canary.canary, cpu) = canary; -+#endif -+#endif - /* - * Up to this point, the boot CPU has been using .init.data - * area. Reload any changed state for the boot CPU. -diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c -index 115eac4..c0591d5 100644 ---- a/arch/x86/kernel/signal.c -+++ b/arch/x86/kernel/signal.c -@@ -190,7 +190,7 @@ static unsigned long align_sigframe(unsigned long sp) - * Align the stack pointer according to the i386 ABI, - * i.e. so that on function entry ((sp + 4) & 15) == 0. - */ -- sp = ((sp + 4) & -16ul) - 4; -+ sp = ((sp - 12) & -16ul) - 4; - #else /* !CONFIG_X86_32 */ - sp = round_down(sp, 16) - 8; - #endif -@@ -241,11 +241,11 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size, - * Return an always-bogus address instead so we will die with SIGSEGV. - */ - if (onsigstack && !likely(on_sig_stack(sp))) -- return (void __user *)-1L; -+ return (__force void __user *)-1L; - - /* save i387 state */ - if (used_math() && save_i387_xstate(*fpstate) < 0) -- return (void __user *)-1L; -+ return (__force void __user *)-1L; - - return (void __user *)sp; - } -@@ -300,9 +300,9 @@ __setup_frame(int sig, struct k_sigaction *ka, sigset_t *set, - } - - if (current->mm->context.vdso) -- restorer = VDSO32_SYMBOL(current->mm->context.vdso, sigreturn); -+ restorer = (__force void __user *)VDSO32_SYMBOL(current->mm->context.vdso, sigreturn); - else -- restorer = &frame->retcode; -+ restorer = (void __user *)&frame->retcode; - if (ka->sa.sa_flags & SA_RESTORER) - restorer = ka->sa.sa_restorer; - -@@ -316,7 +316,7 @@ __setup_frame(int sig, struct k_sigaction *ka, sigset_t *set, - * reasons and because gdb uses it as a signature to notice - * signal handler stack frames. - */ -- err |= __put_user(*((u64 *)&retcode), (u64 *)frame->retcode); -+ err |= __put_user(*((u64 *)&retcode), (u64 __user *)frame->retcode); - - if (err) - return -EFAULT; -@@ -370,7 +370,10 @@ static int __setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, - err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); - - /* Set up to return from userspace. */ -- restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn); -+ if (current->mm->context.vdso) -+ restorer = (__force void __user *)VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn); -+ else -+ restorer = (void __user *)&frame->retcode; - if (ka->sa.sa_flags & SA_RESTORER) - restorer = ka->sa.sa_restorer; - put_user_ex(restorer, &frame->pretcode); -@@ -382,7 +385,7 @@ static int __setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, - * reasons and because gdb uses it as a signature to notice - * signal handler stack frames. - */ -- put_user_ex(*((u64 *)&rt_retcode), (u64 *)frame->retcode); -+ put_user_ex(*((u64 *)&rt_retcode), (u64 __user *)frame->retcode); - } put_user_catch(err); - - if (err) -@@ -773,7 +776,7 @@ static void do_signal(struct pt_regs *regs) - * X86_32: vm86 regs switched out by assembly code before reaching - * here, so testing against kernel CS suffices. - */ -- if (!user_mode(regs)) -+ if (!user_mode_novm(regs)) - return; - - signr = get_signal_to_deliver(&info, &ka, regs, NULL); -diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c -index 6e1e406..edfb7cb 100644 ---- a/arch/x86/kernel/smpboot.c -+++ b/arch/x86/kernel/smpboot.c -@@ -699,17 +699,20 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu) - set_idle_for_cpu(cpu, c_idle.idle); - do_rest: - per_cpu(current_task, cpu) = c_idle.idle; -+ per_cpu(current_tinfo, cpu) = &c_idle.idle->tinfo; - #ifdef CONFIG_X86_32 - /* Stack for startup_32 can be just as for start_secondary onwards */ - irq_ctx_init(cpu); - #else - clear_tsk_thread_flag(c_idle.idle, TIF_FORK); - initial_gs = per_cpu_offset(cpu); -- per_cpu(kernel_stack, cpu) = -- (unsigned long)task_stack_page(c_idle.idle) - -- KERNEL_STACK_OFFSET + THREAD_SIZE; -+ per_cpu(kernel_stack, cpu) = (unsigned long)task_stack_page(c_idle.idle) - 16 + THREAD_SIZE; - #endif -+ -+ pax_open_kernel(); - early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu); -+ pax_close_kernel(); -+ - initial_code = (unsigned long)start_secondary; - stack_start = c_idle.idle->thread.sp; - -@@ -851,6 +854,12 @@ int __cpuinit native_cpu_up(unsigned int cpu) - - per_cpu(cpu_state, cpu) = CPU_UP_PREPARE; - -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ clone_pgd_range(get_cpu_pgd(cpu) + KERNEL_PGD_BOUNDARY, -+ swapper_pg_dir + KERNEL_PGD_BOUNDARY, -+ KERNEL_PGD_PTRS); -+#endif -+ - err = do_boot_cpu(apicid, cpu); - if (err) { - pr_debug("do_boot_cpu failed %d\n", err); -diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c -index c346d11..d43b163 100644 ---- a/arch/x86/kernel/step.c -+++ b/arch/x86/kernel/step.c -@@ -27,10 +27,10 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re - struct desc_struct *desc; - unsigned long base; - -- seg &= ~7UL; -+ seg >>= 3; - - mutex_lock(&child->mm->context.lock); -- if (unlikely((seg >> 3) >= child->mm->context.size)) -+ if (unlikely(seg >= child->mm->context.size)) - addr = -1L; /* bogus selector, access would fault */ - else { - desc = child->mm->context.ldt + seg; -@@ -42,7 +42,8 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re - addr += base; - } - mutex_unlock(&child->mm->context.lock); -- } -+ } else if (seg == __KERNEL_CS || seg == __KERNEXEC_KERNEL_CS) -+ addr = ktla_ktva(addr); - - return addr; - } -@@ -53,6 +54,9 @@ static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs) - unsigned char opcode[15]; - unsigned long addr = convert_ip_to_linear(child, regs); - -+ if (addr == -EINVAL) -+ return 0; -+ - copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0); - for (i = 0; i < copied; i++) { - switch (opcode[i]) { -diff --git a/arch/x86/kernel/sys_i386_32.c b/arch/x86/kernel/sys_i386_32.c -index 0b0cb5f..db6b9ed 100644 ---- a/arch/x86/kernel/sys_i386_32.c -+++ b/arch/x86/kernel/sys_i386_32.c -@@ -24,17 +24,224 @@ - - #include <asm/syscalls.h> - --/* -- * Do a system call from kernel instead of calling sys_execve so we -- * end up with proper pt_regs. -- */ --int kernel_execve(const char *filename, -- const char *const argv[], -- const char *const envp[]) -+int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags) - { -- long __res; -- asm volatile ("int $0x80" -- : "=a" (__res) -- : "0" (__NR_execve), "b" (filename), "c" (argv), "d" (envp) : "memory"); -- return __res; -+ unsigned long pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ if (len > pax_task_size || addr > pax_task_size - len) -+ return -EINVAL; -+ -+ return 0; -+} -+ -+unsigned long -+arch_get_unmapped_area(struct file *filp, unsigned long addr, -+ unsigned long len, unsigned long pgoff, unsigned long flags) -+{ -+ struct mm_struct *mm = current->mm; -+ struct vm_area_struct *vma; -+ unsigned long start_addr, pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ pax_task_size -= PAGE_SIZE; -+ -+ if (len > pax_task_size) -+ return -ENOMEM; -+ -+ if (flags & MAP_FIXED) -+ return addr; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ -+ if (addr) { -+ addr = PAGE_ALIGN(addr); -+ if (pax_task_size - len >= addr) { -+ vma = find_vma(mm, addr); -+ if (check_heap_stack_gap(vma, addr, len)) -+ return addr; -+ } -+ } -+ if (len > mm->cached_hole_size) { -+ start_addr = addr = mm->free_area_cache; -+ } else { -+ start_addr = addr = mm->mmap_base; -+ mm->cached_hole_size = 0; -+ } -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE) && start_addr >= mm->mmap_base) { -+ start_addr = 0x00110000UL; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ start_addr += mm->delta_mmap & 0x03FFF000UL; -+#endif -+ -+ if (mm->start_brk <= start_addr && start_addr < mm->mmap_base) -+ start_addr = addr = mm->mmap_base; -+ else -+ addr = start_addr; -+ } -+#endif -+ -+full_search: -+ for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { -+ /* At this point: (!vma || addr < vma->vm_end). */ -+ if (pax_task_size - len < addr) { -+ /* -+ * Start a new search - just in case we missed -+ * some holes. -+ */ -+ if (start_addr != mm->mmap_base) { -+ start_addr = addr = mm->mmap_base; -+ mm->cached_hole_size = 0; -+ goto full_search; -+ } -+ return -ENOMEM; -+ } -+ if (check_heap_stack_gap(vma, addr, len)) -+ break; -+ if (addr + mm->cached_hole_size < vma->vm_start) -+ mm->cached_hole_size = vma->vm_start - addr; -+ addr = vma->vm_end; -+ if (mm->start_brk <= addr && addr < mm->mmap_base) { -+ start_addr = addr = mm->mmap_base; -+ mm->cached_hole_size = 0; -+ goto full_search; -+ } -+ } -+ -+ /* -+ * Remember the place where we stopped the search: -+ */ -+ mm->free_area_cache = addr + len; -+ return addr; -+} -+ -+unsigned long -+arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, -+ const unsigned long len, const unsigned long pgoff, -+ const unsigned long flags) -+{ -+ struct vm_area_struct *vma; -+ struct mm_struct *mm = current->mm; -+ unsigned long base = mm->mmap_base, addr = addr0, pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ pax_task_size -= PAGE_SIZE; -+ -+ /* requested length too big for entire address space */ -+ if (len > pax_task_size) -+ return -ENOMEM; -+ -+ if (flags & MAP_FIXED) -+ return addr; -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE)) -+ goto bottomup; -+#endif -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ -+ /* requesting a specific address */ -+ if (addr) { -+ addr = PAGE_ALIGN(addr); -+ if (pax_task_size - len >= addr) { -+ vma = find_vma(mm, addr); -+ if (check_heap_stack_gap(vma, addr, len)) -+ return addr; -+ } -+ } -+ -+ /* check if free_area_cache is useful for us */ -+ if (len <= mm->cached_hole_size) { -+ mm->cached_hole_size = 0; -+ mm->free_area_cache = mm->mmap_base; -+ } -+ -+ /* either no address requested or can't fit in requested address hole */ -+ addr = mm->free_area_cache; -+ -+ /* make sure it can fit in the remaining address space */ -+ if (addr > len) { -+ vma = find_vma(mm, addr-len); -+ if (check_heap_stack_gap(vma, addr - len, len)) -+ /* remember the address as a hint for next time */ -+ return (mm->free_area_cache = addr-len); -+ } -+ -+ if (mm->mmap_base < len) -+ goto bottomup; -+ -+ addr = mm->mmap_base-len; -+ -+ do { -+ /* -+ * Lookup failure means no vma is above this address, -+ * else if new region fits below vma->vm_start, -+ * return with success: -+ */ -+ vma = find_vma(mm, addr); -+ if (check_heap_stack_gap(vma, addr, len)) -+ /* remember the address as a hint for next time */ -+ return (mm->free_area_cache = addr); -+ -+ /* remember the largest hole we saw so far */ -+ if (addr + mm->cached_hole_size < vma->vm_start) -+ mm->cached_hole_size = vma->vm_start - addr; -+ -+ /* try just below the current vma->vm_start */ -+ addr = skip_heap_stack_gap(vma, len); -+ } while (!IS_ERR_VALUE(addr)); -+ -+bottomup: -+ /* -+ * A failed mmap() very likely causes application failure, -+ * so fall back to the bottom-up function here. This scenario -+ * can happen with large stack limits and large mmap() -+ * allocations. -+ */ -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ mm->mmap_base = SEGMEXEC_TASK_UNMAPPED_BASE; -+ else -+#endif -+ -+ mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ -+ mm->free_area_cache = mm->mmap_base; -+ mm->cached_hole_size = ~0UL; -+ addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags); -+ /* -+ * Restore the topdown base: -+ */ -+ mm->mmap_base = base; -+ mm->free_area_cache = base; -+ mm->cached_hole_size = ~0UL; -+ -+ return addr; - } -diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c -index b4d3c39..82bb73b 100644 ---- a/arch/x86/kernel/sys_x86_64.c -+++ b/arch/x86/kernel/sys_x86_64.c -@@ -95,8 +95,8 @@ out: - return error; - } - --static void find_start_end(unsigned long flags, unsigned long *begin, -- unsigned long *end) -+static void find_start_end(struct mm_struct *mm, unsigned long flags, -+ unsigned long *begin, unsigned long *end) - { - if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT)) { - unsigned long new_begin; -@@ -115,7 +115,7 @@ static void find_start_end(unsigned long flags, unsigned long *begin, - *begin = new_begin; - } - } else { -- *begin = TASK_UNMAPPED_BASE; -+ *begin = mm->mmap_base; - *end = TASK_SIZE; - } - } -@@ -132,16 +132,19 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, - if (flags & MAP_FIXED) - return addr; - -- find_start_end(flags, &begin, &end); -+ find_start_end(mm, flags, &begin, &end); - - if (len > end) - return -ENOMEM; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - addr = PAGE_ALIGN(addr); - vma = find_vma(mm, addr); -- if (end - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ if (end - len >= addr && check_heap_stack_gap(vma, addr, len)) - return addr; - } - if (((flags & MAP_32BIT) || test_thread_flag(TIF_ADDR32)) -@@ -172,7 +175,7 @@ full_search: - } - return -ENOMEM; - } -- if (!vma || addr + len <= vma->vm_start) { -+ if (check_heap_stack_gap(vma, addr, len)) { - /* - * Remember the place where we stopped the search: - */ -@@ -195,7 +198,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - { - struct vm_area_struct *vma; - struct mm_struct *mm = current->mm; -- unsigned long addr = addr0, start_addr; -+ unsigned long base = mm->mmap_base, addr = addr0, start_addr; - - /* requested length too big for entire address space */ - if (len > TASK_SIZE) -@@ -208,13 +211,18 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT)) - goto bottomup; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - /* requesting a specific address */ - if (addr) { - addr = PAGE_ALIGN(addr); -- vma = find_vma(mm, addr); -- if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -- return addr; -+ if (TASK_SIZE - len >= addr) { -+ vma = find_vma(mm, addr); -+ if (check_heap_stack_gap(vma, addr, len)) -+ return addr; -+ } - } - - /* check if free_area_cache is useful for us */ -@@ -240,7 +248,7 @@ try_again: - * return with success: - */ - vma = find_vma(mm, addr); -- if (!vma || addr+len <= vma->vm_start) -+ if (check_heap_stack_gap(vma, addr, len)) - /* remember the address as a hint for next time */ - return mm->free_area_cache = addr; - -@@ -249,8 +257,8 @@ try_again: - mm->cached_hole_size = vma->vm_start - addr; - - /* try just below the current vma->vm_start */ -- addr = vma->vm_start-len; -- } while (len < vma->vm_start); -+ addr = skip_heap_stack_gap(vma, len); -+ } while (!IS_ERR_VALUE(addr)); - - fail: - /* -@@ -270,13 +278,21 @@ bottomup: - * can happen with large stack limits and large mmap() - * allocations. - */ -+ mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ -+ mm->free_area_cache = mm->mmap_base; - mm->cached_hole_size = ~0UL; -- mm->free_area_cache = TASK_UNMAPPED_BASE; - addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags); - /* - * Restore the topdown base: - */ -- mm->free_area_cache = mm->mmap_base; -+ mm->mmap_base = base; -+ mm->free_area_cache = base; - mm->cached_hole_size = ~0UL; - - return addr; -diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c -index 6410744..79758f0 100644 ---- a/arch/x86/kernel/tboot.c -+++ b/arch/x86/kernel/tboot.c -@@ -219,7 +219,7 @@ static int tboot_setup_sleep(void) - - void tboot_shutdown(u32 shutdown_type) - { -- void (*shutdown)(void); -+ void (* __noreturn shutdown)(void); - - if (!tboot_enabled()) - return; -@@ -241,7 +241,7 @@ void tboot_shutdown(u32 shutdown_type) - - switch_to_tboot_pt(); - -- shutdown = (void(*)(void))(unsigned long)tboot->shutdown_entry; -+ shutdown = (void *)tboot->shutdown_entry; - shutdown(); - - /* should not reach here */ -@@ -299,7 +299,7 @@ static int tboot_sleep(u8 sleep_state, u32 pm1a_control, u32 pm1b_control) - return 0; - } - --static atomic_t ap_wfs_count; -+static atomic_unchecked_t ap_wfs_count; - - static int tboot_wait_for_aps(int num_aps) - { -@@ -323,9 +323,9 @@ static int __cpuinit tboot_cpu_callback(struct notifier_block *nfb, - { - switch (action) { - case CPU_DYING: -- atomic_inc(&ap_wfs_count); -+ atomic_inc_unchecked(&ap_wfs_count); - if (num_online_cpus() == 1) -- if (tboot_wait_for_aps(atomic_read(&ap_wfs_count))) -+ if (tboot_wait_for_aps(atomic_read_unchecked(&ap_wfs_count))) - return NOTIFY_BAD; - break; - } -@@ -344,7 +344,7 @@ static __init int tboot_late_init(void) - - tboot_create_trampoline(); - -- atomic_set(&ap_wfs_count, 0); -+ atomic_set_unchecked(&ap_wfs_count, 0); - register_hotcpu_notifier(&tboot_cpu_notifier); - - acpi_os_set_prepare_sleep(&tboot_sleep); -diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c -index c6eba2b..3303326 100644 ---- a/arch/x86/kernel/time.c -+++ b/arch/x86/kernel/time.c -@@ -31,9 +31,9 @@ unsigned long profile_pc(struct pt_regs *regs) - { - unsigned long pc = instruction_pointer(regs); - -- if (!user_mode_vm(regs) && in_lock_functions(pc)) { -+ if (!user_mode(regs) && in_lock_functions(pc)) { - #ifdef CONFIG_FRAME_POINTER -- return *(unsigned long *)(regs->bp + sizeof(long)); -+ return ktla_ktva(*(unsigned long *)(regs->bp + sizeof(long))); - #else - unsigned long *sp = - (unsigned long *)kernel_stack_pointer(regs); -@@ -42,11 +42,17 @@ unsigned long profile_pc(struct pt_regs *regs) - * or above a saved flags. Eflags has bits 22-31 zero, - * kernel addresses don't. - */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ return ktla_ktva(sp[0]); -+#else - if (sp[0] >> 22) - return sp[0]; - if (sp[1] >> 22) - return sp[1]; - #endif -+ -+#endif - } - return pc; - } -diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c -index 9d9d2f9..ed344e4 100644 ---- a/arch/x86/kernel/tls.c -+++ b/arch/x86/kernel/tls.c -@@ -84,6 +84,11 @@ int do_set_thread_area(struct task_struct *p, int idx, - if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX) - return -EINVAL; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((p->mm->pax_flags & MF_PAX_SEGMEXEC) && (info.contents & MODIFY_LDT_CONTENTS_CODE)) -+ return -EINVAL; -+#endif -+ - set_tls_desc(p, idx, &info, 1); - - return 0; -diff --git a/arch/x86/kernel/trampoline_32.S b/arch/x86/kernel/trampoline_32.S -index 451c0a7..e57f551 100644 ---- a/arch/x86/kernel/trampoline_32.S -+++ b/arch/x86/kernel/trampoline_32.S -@@ -32,6 +32,12 @@ - #include <asm/segment.h> - #include <asm/page_types.h> - -+#ifdef CONFIG_PAX_KERNEXEC -+#define ta(X) (X) -+#else -+#define ta(X) ((X) - __PAGE_OFFSET) -+#endif -+ - #ifdef CONFIG_SMP - - .section ".x86_trampoline","a" -@@ -62,7 +68,7 @@ r_base = . - inc %ax # protected mode (PE) bit - lmsw %ax # into protected mode - # flush prefetch and jump to startup_32_smp in arch/i386/kernel/head.S -- ljmpl $__BOOT_CS, $(startup_32_smp-__PAGE_OFFSET) -+ ljmpl $__BOOT_CS, $ta(startup_32_smp) - - # These need to be in the same 64K segment as the above; - # hence we don't use the boot_gdt_descr defined in head.S -diff --git a/arch/x86/kernel/trampoline_64.S b/arch/x86/kernel/trampoline_64.S -index 09ff517..df19fbff 100644 ---- a/arch/x86/kernel/trampoline_64.S -+++ b/arch/x86/kernel/trampoline_64.S -@@ -90,7 +90,7 @@ startup_32: - movl $__KERNEL_DS, %eax # Initialize the %ds segment register - movl %eax, %ds - -- movl $X86_CR4_PAE, %eax -+ movl $(X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE), %eax - movl %eax, %cr4 # Enable PAE mode - - # Setup trampoline 4 level pagetables -@@ -138,7 +138,7 @@ tidt: - # so the kernel can live anywhere - .balign 4 - tgdt: -- .short tgdt_end - tgdt # gdt limit -+ .short tgdt_end - tgdt - 1 # gdt limit - .long tgdt - r_base - .short 0 - .quad 0x00cf9b000000ffff # __KERNEL32_CS -diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c -index ff9281f1..30cb4ac 100644 ---- a/arch/x86/kernel/traps.c -+++ b/arch/x86/kernel/traps.c -@@ -70,12 +70,6 @@ asmlinkage int system_call(void); - - /* Do we ignore FPU interrupts ? */ - char ignore_fpu_irq; -- --/* -- * The IDT has to be page-aligned to simplify the Pentium -- * F0 0F bug workaround. -- */ --gate_desc idt_table[NR_VECTORS] __page_aligned_data = { { { { 0, 0 } } }, }; - #endif - - DECLARE_BITMAP(used_vectors, NR_VECTORS); -@@ -108,13 +102,13 @@ static inline void preempt_conditional_cli(struct pt_regs *regs) - } - - static void __kprobes --do_trap(int trapnr, int signr, char *str, struct pt_regs *regs, -+do_trap(int trapnr, int signr, const char *str, struct pt_regs *regs, - long error_code, siginfo_t *info) - { - struct task_struct *tsk = current; - - #ifdef CONFIG_X86_32 -- if (regs->flags & X86_VM_MASK) { -+ if (v8086_mode(regs)) { - /* - * traps 0, 1, 3, 4, and 5 should be forwarded to vm86. - * On nmi (interrupt 2), do_trap should not be called. -@@ -125,7 +119,7 @@ do_trap(int trapnr, int signr, char *str, struct pt_regs *regs, - } - #endif - -- if (!user_mode(regs)) -+ if (!user_mode_novm(regs)) - goto kernel_trap; - - #ifdef CONFIG_X86_32 -@@ -148,7 +142,7 @@ trap_signal: - printk_ratelimit()) { - printk(KERN_INFO - "%s[%d] trap %s ip:%lx sp:%lx error:%lx", -- tsk->comm, tsk->pid, str, -+ tsk->comm, task_pid_nr(tsk), str, - regs->ip, regs->sp, error_code); - print_vma_addr(" in ", regs->ip); - printk("\n"); -@@ -165,8 +159,20 @@ kernel_trap: - if (!fixup_exception(regs)) { - tsk->thread.error_code = error_code; - tsk->thread.trap_nr = trapnr; -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ if (trapnr == 12 && ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS)) -+ str = "PAX: suspicious stack segment fault"; -+#endif -+ - die(str, regs, error_code); - } -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ if (trapnr == 4) -+ pax_report_refcount_overflow(regs); -+#endif -+ - return; - - #ifdef CONFIG_X86_32 -@@ -259,14 +265,30 @@ do_general_protection(struct pt_regs *regs, long error_code) - conditional_sti(regs); - - #ifdef CONFIG_X86_32 -- if (regs->flags & X86_VM_MASK) -+ if (v8086_mode(regs)) - goto gp_in_vm86; - #endif - - tsk = current; -- if (!user_mode(regs)) -+ if (!user_mode_novm(regs)) - goto gp_in_kernel; - -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) -+ if (!(__supported_pte_mask & _PAGE_NX) && tsk->mm && (tsk->mm->pax_flags & MF_PAX_PAGEEXEC)) { -+ struct mm_struct *mm = tsk->mm; -+ unsigned long limit; -+ -+ down_write(&mm->mmap_sem); -+ limit = mm->context.user_cs_limit; -+ if (limit < TASK_SIZE) { -+ track_exec_limit(mm, limit, TASK_SIZE, VM_EXEC); -+ up_write(&mm->mmap_sem); -+ return; -+ } -+ up_write(&mm->mmap_sem); -+ } -+#endif -+ - tsk->thread.error_code = error_code; - tsk->thread.trap_nr = X86_TRAP_GP; - -@@ -299,6 +321,13 @@ gp_in_kernel: - if (notify_die(DIE_GPF, "general protection fault", regs, error_code, - X86_TRAP_GP, SIGSEGV) == NOTIFY_STOP) - return; -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ if ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS) -+ die("PAX: suspicious general protection fault", regs, error_code); -+ else -+#endif -+ - die("general protection fault", regs, error_code); - } - -@@ -425,7 +454,7 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code) - /* It's safe to allow irq's after DR6 has been saved */ - preempt_conditional_sti(regs); - -- if (regs->flags & X86_VM_MASK) { -+ if (v8086_mode(regs)) { - handle_vm86_trap((struct kernel_vm86_regs *) regs, error_code, - X86_TRAP_DB); - preempt_conditional_cli(regs); -@@ -440,7 +469,7 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code) - * We already checked v86 mode above, so we can check for kernel mode - * by just checking the CPL of CS. - */ -- if ((dr6 & DR_STEP) && !user_mode(regs)) { -+ if ((dr6 & DR_STEP) && !user_mode_novm(regs)) { - tsk->thread.debugreg6 &= ~DR_STEP; - set_tsk_thread_flag(tsk, TIF_SINGLESTEP); - regs->flags &= ~X86_EFLAGS_TF; -@@ -471,7 +500,7 @@ void math_error(struct pt_regs *regs, int error_code, int trapnr) - return; - conditional_sti(regs); - -- if (!user_mode_vm(regs)) -+ if (!user_mode(regs)) - { - if (!fixup_exception(regs)) { - task->thread.error_code = error_code; -diff --git a/arch/x86/kernel/verify_cpu.S b/arch/x86/kernel/verify_cpu.S -index b9242ba..50c5edd 100644 ---- a/arch/x86/kernel/verify_cpu.S -+++ b/arch/x86/kernel/verify_cpu.S -@@ -20,6 +20,7 @@ - * arch/x86/boot/compressed/head_64.S: Boot cpu verification - * arch/x86/kernel/trampoline_64.S: secondary processor verification - * arch/x86/kernel/head_32.S: processor startup -+ * arch/x86/kernel/acpi/realmode/wakeup.S: 32bit processor resume - * - * verify_cpu, returns the status of longmode and SSE in register %eax. - * 0: Success 1: Failure -diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c -index 255f58a..5e91150 100644 ---- a/arch/x86/kernel/vm86_32.c -+++ b/arch/x86/kernel/vm86_32.c -@@ -41,6 +41,7 @@ - #include <linux/ptrace.h> - #include <linux/audit.h> - #include <linux/stddef.h> -+#include <linux/grsecurity.h> - - #include <asm/uaccess.h> - #include <asm/io.h> -@@ -148,7 +149,7 @@ struct pt_regs *save_v86_state(struct kernel_vm86_regs *regs) - do_exit(SIGSEGV); - } - -- tss = &per_cpu(init_tss, get_cpu()); -+ tss = init_tss + get_cpu(); - current->thread.sp0 = current->thread.saved_sp0; - current->thread.sysenter_cs = __KERNEL_CS; - load_sp0(tss, &current->thread); -@@ -210,6 +211,13 @@ int sys_vm86old(struct vm86_struct __user *v86, struct pt_regs *regs) - struct task_struct *tsk; - int tmp, ret = -EPERM; - -+#ifdef CONFIG_GRKERNSEC_VM86 -+ if (!capable(CAP_SYS_RAWIO)) { -+ gr_handle_vm86(); -+ goto out; -+ } -+#endif -+ - tsk = current; - if (tsk->thread.saved_sp0) - goto out; -@@ -240,6 +248,14 @@ int sys_vm86(unsigned long cmd, unsigned long arg, struct pt_regs *regs) - int tmp, ret; - struct vm86plus_struct __user *v86; - -+#ifdef CONFIG_GRKERNSEC_VM86 -+ if (!capable(CAP_SYS_RAWIO)) { -+ gr_handle_vm86(); -+ ret = -EPERM; -+ goto out; -+ } -+#endif -+ - tsk = current; - switch (cmd) { - case VM86_REQUEST_IRQ: -@@ -326,7 +342,7 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk - tsk->thread.saved_fs = info->regs32->fs; - tsk->thread.saved_gs = get_user_gs(info->regs32); - -- tss = &per_cpu(init_tss, get_cpu()); -+ tss = init_tss + get_cpu(); - tsk->thread.sp0 = (unsigned long) &info->VM86_TSS_ESP0; - if (cpu_has_sep) - tsk->thread.sysenter_cs = 0; -@@ -533,7 +549,7 @@ static void do_int(struct kernel_vm86_regs *regs, int i, - goto cannot_handle; - if (i == 0x21 && is_revectored(AH(regs), &KVM86->int21_revectored)) - goto cannot_handle; -- intr_ptr = (unsigned long __user *) (i << 2); -+ intr_ptr = (__force unsigned long __user *) (i << 2); - if (get_user(segoffs, intr_ptr)) - goto cannot_handle; - if ((segoffs >> 16) == BIOSSEG) -diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S -index 0f703f1..9e15f64 100644 ---- a/arch/x86/kernel/vmlinux.lds.S -+++ b/arch/x86/kernel/vmlinux.lds.S -@@ -26,6 +26,13 @@ - #include <asm/page_types.h> - #include <asm/cache.h> - #include <asm/boot.h> -+#include <asm/segment.h> -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+#define __KERNEL_TEXT_OFFSET (LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR) -+#else -+#define __KERNEL_TEXT_OFFSET 0 -+#endif - - #undef i386 /* in case the preprocessor is a 32bit one */ - -@@ -69,30 +76,43 @@ jiffies_64 = jiffies; - - PHDRS { - text PT_LOAD FLAGS(5); /* R_E */ -+#ifdef CONFIG_X86_32 -+ module PT_LOAD FLAGS(5); /* R_E */ -+#endif -+#ifdef CONFIG_XEN -+ rodata PT_LOAD FLAGS(5); /* R_E */ -+#else -+ rodata PT_LOAD FLAGS(4); /* R__ */ -+#endif - data PT_LOAD FLAGS(6); /* RW_ */ --#ifdef CONFIG_X86_64 -+ init.begin PT_LOAD FLAGS(6); /* RW_ */ - #ifdef CONFIG_SMP - percpu PT_LOAD FLAGS(6); /* RW_ */ - #endif -+ text.init PT_LOAD FLAGS(5); /* R_E */ -+ text.exit PT_LOAD FLAGS(5); /* R_E */ - init PT_LOAD FLAGS(7); /* RWE */ --#endif - note PT_NOTE FLAGS(0); /* ___ */ - } - - SECTIONS - { - #ifdef CONFIG_X86_32 -- . = LOAD_OFFSET + LOAD_PHYSICAL_ADDR; -- phys_startup_32 = startup_32 - LOAD_OFFSET; -+ . = LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR; - #else -- . = __START_KERNEL; -- phys_startup_64 = startup_64 - LOAD_OFFSET; -+ . = __START_KERNEL; - #endif - - /* Text and read-only data */ -- .text : AT(ADDR(.text) - LOAD_OFFSET) { -- _text = .; -+ .text (. - __KERNEL_TEXT_OFFSET): AT(ADDR(.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) { - /* bootstrapping code */ -+#ifdef CONFIG_X86_32 -+ phys_startup_32 = startup_32 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET; -+#else -+ phys_startup_64 = startup_64 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET; -+#endif -+ __LOAD_PHYSICAL_ADDR = . - LOAD_OFFSET + __KERNEL_TEXT_OFFSET; -+ _text = .; - HEAD_TEXT - #ifdef CONFIG_X86_32 - . = ALIGN(PAGE_SIZE); -@@ -108,13 +128,47 @@ SECTIONS - IRQENTRY_TEXT - *(.fixup) - *(.gnu.warning) -- /* End of text section */ -- _etext = .; - } :text = 0x9090 - -- NOTES :text :note -+ . += __KERNEL_TEXT_OFFSET; - -- EXCEPTION_TABLE(16) :text = 0x9090 -+#ifdef CONFIG_X86_32 -+ . = ALIGN(PAGE_SIZE); -+ .module.text : AT(ADDR(.module.text) - LOAD_OFFSET) { -+ -+#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_MODULES) -+ MODULES_EXEC_VADDR = .; -+ BYTE(0) -+ . += (CONFIG_PAX_KERNEXEC_MODULE_TEXT * 1024 * 1024); -+ . = ALIGN(HPAGE_SIZE); -+ MODULES_EXEC_END = . - 1; -+#endif -+ -+ } :module -+#endif -+ -+ .text.end : AT(ADDR(.text.end) - LOAD_OFFSET) { -+ /* End of text section */ -+ _etext = . - __KERNEL_TEXT_OFFSET; -+ } -+ -+#ifdef CONFIG_X86_32 -+ . = ALIGN(PAGE_SIZE); -+ .rodata.page_aligned : AT(ADDR(.rodata.page_aligned) - LOAD_OFFSET) { -+ *(.idt) -+ . = ALIGN(PAGE_SIZE); -+ *(.empty_zero_page) -+ *(.initial_pg_fixmap) -+ *(.initial_pg_pmd) -+ *(.initial_page_table) -+ *(.swapper_pg_dir) -+ } :rodata -+#endif -+ -+ . = ALIGN(PAGE_SIZE); -+ NOTES :rodata :note -+ -+ EXCEPTION_TABLE(16) :rodata - - #if defined(CONFIG_DEBUG_RODATA) - /* .text should occupy whole number of pages */ -@@ -126,16 +180,20 @@ SECTIONS - - /* Data */ - .data : AT(ADDR(.data) - LOAD_OFFSET) { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ . = ALIGN(HPAGE_SIZE); -+#else -+ . = ALIGN(PAGE_SIZE); -+#endif -+ - /* Start of data section */ - _sdata = .; - - /* init_task */ - INIT_TASK_DATA(THREAD_SIZE) - --#ifdef CONFIG_X86_32 -- /* 32 bit has nosave before _edata */ - NOSAVE_DATA --#endif - - PAGE_ALIGNED_DATA(PAGE_SIZE) - -@@ -176,12 +234,19 @@ SECTIONS - #endif /* CONFIG_X86_64 */ - - /* Init code and data - will be freed after init */ -- . = ALIGN(PAGE_SIZE); - .init.begin : AT(ADDR(.init.begin) - LOAD_OFFSET) { -+ BYTE(0) -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ . = ALIGN(HPAGE_SIZE); -+#else -+ . = ALIGN(PAGE_SIZE); -+#endif -+ - __init_begin = .; /* paired with __init_end */ -- } -+ } :init.begin - --#if defined(CONFIG_X86_64) && defined(CONFIG_SMP) -+#ifdef CONFIG_SMP - /* - * percpu offsets are zero-based on SMP. PERCPU_VADDR() changes the - * output PHDR, so the next output section - .init.text - should -@@ -190,12 +255,27 @@ SECTIONS - PERCPU_VADDR(INTERNODE_CACHE_BYTES, 0, :percpu) - #endif - -- INIT_TEXT_SECTION(PAGE_SIZE) --#ifdef CONFIG_X86_64 -- :init --#endif -+ . = ALIGN(PAGE_SIZE); -+ init_begin = .; -+ .init.text (. - __KERNEL_TEXT_OFFSET): AT(init_begin - LOAD_OFFSET) { -+ VMLINUX_SYMBOL(_sinittext) = .; -+ INIT_TEXT -+ VMLINUX_SYMBOL(_einittext) = .; -+ . = ALIGN(PAGE_SIZE); -+ } :text.init - -- INIT_DATA_SECTION(16) -+ /* -+ * .exit.text is discard at runtime, not link time, to deal with -+ * references from .altinstructions and .eh_frame -+ */ -+ .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) { -+ EXIT_TEXT -+ . = ALIGN(16); -+ } :text.exit -+ . = init_begin + SIZEOF(.init.text) + SIZEOF(.exit.text); -+ -+ . = ALIGN(PAGE_SIZE); -+ INIT_DATA_SECTION(16) :init - - /* - * Code and data for a variety of lowlevel trampolines, to be -@@ -269,19 +349,12 @@ SECTIONS - } - - . = ALIGN(8); -- /* -- * .exit.text is discard at runtime, not link time, to deal with -- * references from .altinstructions and .eh_frame -- */ -- .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { -- EXIT_TEXT -- } - - .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { - EXIT_DATA - } - --#if !defined(CONFIG_X86_64) || !defined(CONFIG_SMP) -+#ifndef CONFIG_SMP - PERCPU_SECTION(INTERNODE_CACHE_BYTES) - #endif - -@@ -300,16 +373,10 @@ SECTIONS - .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) { - __smp_locks = .; - *(.smp_locks) -- . = ALIGN(PAGE_SIZE); - __smp_locks_end = .; -+ . = ALIGN(PAGE_SIZE); - } - --#ifdef CONFIG_X86_64 -- .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { -- NOSAVE_DATA -- } --#endif -- - /* BSS */ - . = ALIGN(PAGE_SIZE); - .bss : AT(ADDR(.bss) - LOAD_OFFSET) { -@@ -325,6 +392,7 @@ SECTIONS - __brk_base = .; - . += 64 * 1024; /* 64k alignment slop space */ - *(.brk_reservation) /* areas brk users have reserved */ -+ . = ALIGN(HPAGE_SIZE); - __brk_limit = .; - } - -@@ -351,13 +419,12 @@ SECTIONS - * for the boot processor. - */ - #define INIT_PER_CPU(x) init_per_cpu__##x = x + __per_cpu_load --INIT_PER_CPU(gdt_page); - INIT_PER_CPU(irq_stack_union); - - /* - * Build-time check on the image size: - */ --. = ASSERT((_end - _text <= KERNEL_IMAGE_SIZE), -+. = ASSERT((_end - _text - __KERNEL_TEXT_OFFSET <= KERNEL_IMAGE_SIZE), - "kernel image bigger than KERNEL_IMAGE_SIZE"); - - #ifdef CONFIG_SMP -diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c -index 7515cf0..331a1a0 100644 ---- a/arch/x86/kernel/vsyscall_64.c -+++ b/arch/x86/kernel/vsyscall_64.c -@@ -54,15 +54,13 @@ - DEFINE_VVAR(int, vgetcpu_mode); - DEFINE_VVAR(struct vsyscall_gtod_data, vsyscall_gtod_data); - --static enum { EMULATE, NATIVE, NONE } vsyscall_mode = EMULATE; -+static enum { EMULATE, NONE } vsyscall_mode = EMULATE; - - static int __init vsyscall_setup(char *str) - { - if (str) { - if (!strcmp("emulate", str)) - vsyscall_mode = EMULATE; -- else if (!strcmp("native", str)) -- vsyscall_mode = NATIVE; - else if (!strcmp("none", str)) - vsyscall_mode = NONE; - else -@@ -206,7 +204,7 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address) - - tsk = current; - if (seccomp_mode(&tsk->seccomp)) -- do_exit(SIGKILL); -+ do_group_exit(SIGKILL); - - /* - * With a real vsyscall, page faults cause SIGSEGV. We want to -@@ -278,8 +276,7 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address) - return true; - - sigsegv: -- force_sig(SIGSEGV, current); -- return true; -+ do_group_exit(SIGKILL); - } - - /* -@@ -332,10 +329,7 @@ void __init map_vsyscall(void) - extern char __vvar_page; - unsigned long physaddr_vvar_page = __pa_symbol(&__vvar_page); - -- __set_fixmap(VSYSCALL_FIRST_PAGE, physaddr_vsyscall, -- vsyscall_mode == NATIVE -- ? PAGE_KERNEL_VSYSCALL -- : PAGE_KERNEL_VVAR); -+ __set_fixmap(VSYSCALL_FIRST_PAGE, physaddr_vsyscall, PAGE_KERNEL_VVAR); - BUILD_BUG_ON((unsigned long)__fix_to_virt(VSYSCALL_FIRST_PAGE) != - (unsigned long)VSYSCALL_START); - -diff --git a/arch/x86/kernel/x8664_ksyms_64.c b/arch/x86/kernel/x8664_ksyms_64.c -index 9796c2f..f686fbf 100644 ---- a/arch/x86/kernel/x8664_ksyms_64.c -+++ b/arch/x86/kernel/x8664_ksyms_64.c -@@ -29,8 +29,6 @@ EXPORT_SYMBOL(__put_user_8); - EXPORT_SYMBOL(copy_user_generic_string); - EXPORT_SYMBOL(copy_user_generic_unrolled); - EXPORT_SYMBOL(__copy_user_nocache); --EXPORT_SYMBOL(_copy_from_user); --EXPORT_SYMBOL(_copy_to_user); - - EXPORT_SYMBOL(copy_page); - EXPORT_SYMBOL(clear_page); -diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c -index e62728e..5fc3a07 100644 ---- a/arch/x86/kernel/xsave.c -+++ b/arch/x86/kernel/xsave.c -@@ -131,7 +131,7 @@ int check_for_xstate(struct i387_fxsave_struct __user *buf, - fx_sw_user->xstate_size > fx_sw_user->extended_size) - return -EINVAL; - -- err = __get_user(magic2, (__u32 *) (((void *)fpstate) + -+ err = __get_user(magic2, (__u32 __user *) (((void __user *)fpstate) + - fx_sw_user->extended_size - - FP_XSTATE_MAGIC2_SIZE)); - if (err) -@@ -267,7 +267,7 @@ fx_only: - * the other extended state. - */ - xrstor_state(init_xstate_buf, pcntxt_mask & ~XSTATE_FPSSE); -- return fxrstor_checking((__force struct i387_fxsave_struct *)buf); -+ return fxrstor_checking((struct i387_fxsave_struct __force_kernel *)buf); - } - - /* -@@ -296,7 +296,7 @@ int restore_i387_xstate(void __user *buf) - if (use_xsave()) - err = restore_user_xstate(buf); - else -- err = fxrstor_checking((__force struct i387_fxsave_struct *) -+ err = fxrstor_checking((struct i387_fxsave_struct __force_kernel *) - buf); - if (unlikely(err)) { - /* -diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c -index 9fed5be..18fd595 100644 ---- a/arch/x86/kvm/cpuid.c -+++ b/arch/x86/kvm/cpuid.c -@@ -124,15 +124,20 @@ int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu, - struct kvm_cpuid2 *cpuid, - struct kvm_cpuid_entry2 __user *entries) - { -- int r; -+ int r, i; - - r = -E2BIG; - if (cpuid->nent > KVM_MAX_CPUID_ENTRIES) - goto out; - r = -EFAULT; -- if (copy_from_user(&vcpu->arch.cpuid_entries, entries, -- cpuid->nent * sizeof(struct kvm_cpuid_entry2))) -+ if (!access_ok(VERIFY_READ, entries, cpuid->nent * sizeof(struct kvm_cpuid_entry2))) - goto out; -+ for (i = 0; i < cpuid->nent; ++i) { -+ struct kvm_cpuid_entry2 cpuid_entry; -+ if (__copy_from_user(&cpuid_entry, entries + i, sizeof(cpuid_entry))) -+ goto out; -+ vcpu->arch.cpuid_entries[i] = cpuid_entry; -+ } - vcpu->arch.cpuid_nent = cpuid->nent; - kvm_apic_set_version(vcpu); - kvm_x86_ops->cpuid_update(vcpu); -@@ -147,15 +152,19 @@ int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu, - struct kvm_cpuid2 *cpuid, - struct kvm_cpuid_entry2 __user *entries) - { -- int r; -+ int r, i; - - r = -E2BIG; - if (cpuid->nent < vcpu->arch.cpuid_nent) - goto out; - r = -EFAULT; -- if (copy_to_user(entries, &vcpu->arch.cpuid_entries, -- vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2))) -+ if (!access_ok(VERIFY_WRITE, entries, vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2))) - goto out; -+ for (i = 0; i < vcpu->arch.cpuid_nent; ++i) { -+ struct kvm_cpuid_entry2 cpuid_entry = vcpu->arch.cpuid_entries[i]; -+ if (__copy_to_user(entries + i, &cpuid_entry, sizeof(cpuid_entry))) -+ goto out; -+ } - return 0; - - out: -diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c -index 8375622..b7bca1a 100644 ---- a/arch/x86/kvm/emulate.c -+++ b/arch/x86/kvm/emulate.c -@@ -252,6 +252,7 @@ struct gprefix { - - #define ____emulate_2op(ctxt, _op, _x, _y, _suffix, _dsttype) \ - do { \ -+ unsigned long _tmp; \ - __asm__ __volatile__ ( \ - _PRE_EFLAGS("0", "4", "2") \ - _op _suffix " %"_x"3,%1; " \ -@@ -266,8 +267,6 @@ struct gprefix { - /* Raw emulation: instruction has two explicit operands. */ - #define __emulate_2op_nobyte(ctxt,_op,_wx,_wy,_lx,_ly,_qx,_qy) \ - do { \ -- unsigned long _tmp; \ -- \ - switch ((ctxt)->dst.bytes) { \ - case 2: \ - ____emulate_2op(ctxt,_op,_wx,_wy,"w",u16); \ -@@ -283,7 +282,6 @@ struct gprefix { - - #define __emulate_2op(ctxt,_op,_bx,_by,_wx,_wy,_lx,_ly,_qx,_qy) \ - do { \ -- unsigned long _tmp; \ - switch ((ctxt)->dst.bytes) { \ - case 1: \ - ____emulate_2op(ctxt,_op,_bx,_by,"b",u8); \ -diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c -index 8584322..17d5955 100644 ---- a/arch/x86/kvm/lapic.c -+++ b/arch/x86/kvm/lapic.c -@@ -54,7 +54,7 @@ - #define APIC_BUS_CYCLE_NS 1 - - /* #define apic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg) */ --#define apic_debug(fmt, arg...) -+#define apic_debug(fmt, arg...) do {} while (0) - - #define APIC_LVT_NUM 6 - /* 14 is the version for Xeon and Pentium 8.4.8*/ -diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h -index df5a703..63748a7 100644 ---- a/arch/x86/kvm/paging_tmpl.h -+++ b/arch/x86/kvm/paging_tmpl.h -@@ -197,7 +197,7 @@ retry_walk: - if (unlikely(kvm_is_error_hva(host_addr))) - goto error; - -- ptep_user = (pt_element_t __user *)((void *)host_addr + offset); -+ ptep_user = (pt_element_t __force_user *)((void *)host_addr + offset); - if (unlikely(__copy_from_user(&pte, ptep_user, sizeof(pte)))) - goto error; - -diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c -index e334389..6839087 100644 ---- a/arch/x86/kvm/svm.c -+++ b/arch/x86/kvm/svm.c -@@ -3509,7 +3509,11 @@ static void reload_tss(struct kvm_vcpu *vcpu) - int cpu = raw_smp_processor_id(); - - struct svm_cpu_data *sd = per_cpu(svm_data, cpu); -+ -+ pax_open_kernel(); - sd->tss_desc->type = 9; /* available 32/64-bit TSS */ -+ pax_close_kernel(); -+ - load_TR_desc(); - } - -@@ -3887,6 +3891,10 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu) - #endif - #endif - -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ __set_fs(current_thread_info()->addr_limit); -+#endif -+ - reload_tss(vcpu); - - local_irq_disable(); -diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c -index 4ff0ab9..2ff68d3 100644 ---- a/arch/x86/kvm/vmx.c -+++ b/arch/x86/kvm/vmx.c -@@ -1303,7 +1303,11 @@ static void reload_tss(void) - struct desc_struct *descs; - - descs = (void *)gdt->address; -+ -+ pax_open_kernel(); - descs[GDT_ENTRY_TSS].type = 9; /* available TSS */ -+ pax_close_kernel(); -+ - load_TR_desc(); - } - -@@ -2625,8 +2629,11 @@ static __init int hardware_setup(void) - if (!cpu_has_vmx_flexpriority()) - flexpriority_enabled = 0; - -- if (!cpu_has_vmx_tpr_shadow()) -- kvm_x86_ops->update_cr8_intercept = NULL; -+ if (!cpu_has_vmx_tpr_shadow()) { -+ pax_open_kernel(); -+ *(void **)&kvm_x86_ops->update_cr8_intercept = NULL; -+ pax_close_kernel(); -+ } - - if (enable_ept && !cpu_has_vmx_ept_2m_page()) - kvm_disable_largepages(); -@@ -3642,7 +3649,7 @@ static void vmx_set_constant_host_state(void) - vmcs_writel(HOST_IDTR_BASE, dt.address); /* 22.2.4 */ - - asm("mov $.Lkvm_vmx_return, %0" : "=r"(tmpl)); -- vmcs_writel(HOST_RIP, tmpl); /* 22.2.5 */ -+ vmcs_writel(HOST_RIP, ktla_ktva(tmpl)); /* 22.2.5 */ - - rdmsr(MSR_IA32_SYSENTER_CS, low32, high32); - vmcs_write32(HOST_IA32_SYSENTER_CS, low32); -@@ -6180,6 +6187,12 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu) - "jmp .Lkvm_vmx_return \n\t" - ".Llaunched: " __ex(ASM_VMX_VMRESUME) "\n\t" - ".Lkvm_vmx_return: " -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ "ljmp %[cs],$.Lkvm_vmx_return2\n\t" -+ ".Lkvm_vmx_return2: " -+#endif -+ - /* Save guest registers, load host registers, keep flags */ - "mov %0, %c[wordsize](%%"R"sp) \n\t" - "pop %0 \n\t" -@@ -6228,6 +6241,11 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu) - #endif - [cr2]"i"(offsetof(struct vcpu_vmx, vcpu.arch.cr2)), - [wordsize]"i"(sizeof(ulong)) -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ ,[cs]"i"(__KERNEL_CS) -+#endif -+ - : "cc", "memory" - , R"ax", R"bx", R"di", R"si" - #ifdef CONFIG_X86_64 -@@ -6256,7 +6274,16 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu) - } - } - -- asm("mov %0, %%ds; mov %0, %%es" : : "r"(__USER_DS)); -+ asm("mov %0, %%ds; mov %0, %%es; mov %0, %%ss" : : "r"(__KERNEL_DS)); -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ loadsegment(fs, __KERNEL_PERCPU); -+#endif -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ __set_fs(current_thread_info()->addr_limit); -+#endif -+ - vmx->loaded_vmcs->launched = 1; - - vmx->exit_reason = vmcs_read32(VM_EXIT_REASON); -diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c -index 185a2b8..866d2a6 100644 ---- a/arch/x86/kvm/x86.c -+++ b/arch/x86/kvm/x86.c -@@ -1357,8 +1357,8 @@ static int xen_hvm_config(struct kvm_vcpu *vcpu, u64 data) - { - struct kvm *kvm = vcpu->kvm; - int lm = is_long_mode(vcpu); -- u8 *blob_addr = lm ? (u8 *)(long)kvm->arch.xen_hvm_config.blob_addr_64 -- : (u8 *)(long)kvm->arch.xen_hvm_config.blob_addr_32; -+ u8 __user *blob_addr = lm ? (u8 __user *)(long)kvm->arch.xen_hvm_config.blob_addr_64 -+ : (u8 __user *)(long)kvm->arch.xen_hvm_config.blob_addr_32; - u8 blob_size = lm ? kvm->arch.xen_hvm_config.blob_size_64 - : kvm->arch.xen_hvm_config.blob_size_32; - u32 page_num = data & ~PAGE_MASK; -@@ -2213,6 +2213,8 @@ long kvm_arch_dev_ioctl(struct file *filp, - if (n < msr_list.nmsrs) - goto out; - r = -EFAULT; -+ if (num_msrs_to_save > ARRAY_SIZE(msrs_to_save)) -+ goto out; - if (copy_to_user(user_msr_list->indices, &msrs_to_save, - num_msrs_to_save * sizeof(u32))) - goto out; -@@ -2338,7 +2340,7 @@ static int kvm_vcpu_ioctl_set_lapic(struct kvm_vcpu *vcpu, - static int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, - struct kvm_interrupt *irq) - { -- if (irq->irq < 0 || irq->irq >= 256) -+ if (irq->irq >= 256) - return -EINVAL; - if (irqchip_in_kernel(vcpu->kvm)) - return -ENXIO; -@@ -4860,7 +4862,7 @@ static void kvm_set_mmio_spte_mask(void) - kvm_mmu_set_mmio_spte_mask(mask); - } - --int kvm_arch_init(void *opaque) -+int kvm_arch_init(const void *opaque) - { - int r; - struct kvm_x86_ops *ops = (struct kvm_x86_ops *)opaque; -diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c -index 642d880..44e0f3f 100644 ---- a/arch/x86/lguest/boot.c -+++ b/arch/x86/lguest/boot.c -@@ -1200,9 +1200,10 @@ static __init int early_put_chars(u32 vtermno, const char *buf, int count) - * Rebooting also tells the Host we're finished, but the RESTART flag tells the - * Launcher to reboot us. - */ --static void lguest_restart(char *reason) -+static __noreturn void lguest_restart(char *reason) - { - hcall(LHCALL_SHUTDOWN, __pa(reason), LGUEST_SHUTDOWN_RESTART, 0, 0); -+ BUG(); - } - - /*G:050 -diff --git a/arch/x86/lib/atomic64_386_32.S b/arch/x86/lib/atomic64_386_32.S -index 00933d5..3a64af9 100644 ---- a/arch/x86/lib/atomic64_386_32.S -+++ b/arch/x86/lib/atomic64_386_32.S -@@ -48,6 +48,10 @@ BEGIN(read) - movl (v), %eax - movl 4(v), %edx - RET_ENDP -+BEGIN(read_unchecked) -+ movl (v), %eax -+ movl 4(v), %edx -+RET_ENDP - #undef v - - #define v %esi -@@ -55,6 +59,10 @@ BEGIN(set) - movl %ebx, (v) - movl %ecx, 4(v) - RET_ENDP -+BEGIN(set_unchecked) -+ movl %ebx, (v) -+ movl %ecx, 4(v) -+RET_ENDP - #undef v - - #define v %esi -@@ -70,6 +78,20 @@ RET_ENDP - BEGIN(add) - addl %eax, (v) - adcl %edx, 4(v) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ jno 0f -+ subl %eax, (v) -+ sbbl %edx, 4(v) -+ int $4 -+0: -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+RET_ENDP -+BEGIN(add_unchecked) -+ addl %eax, (v) -+ adcl %edx, 4(v) - RET_ENDP - #undef v - -@@ -77,6 +99,24 @@ RET_ENDP - BEGIN(add_return) - addl (v), %eax - adcl 4(v), %edx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 2f) -+#endif -+ -+ movl %eax, (v) -+ movl %edx, 4(v) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+2: -+#endif -+ -+RET_ENDP -+BEGIN(add_return_unchecked) -+ addl (v), %eax -+ adcl 4(v), %edx - movl %eax, (v) - movl %edx, 4(v) - RET_ENDP -@@ -86,6 +126,20 @@ RET_ENDP - BEGIN(sub) - subl %eax, (v) - sbbl %edx, 4(v) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ jno 0f -+ addl %eax, (v) -+ adcl %edx, 4(v) -+ int $4 -+0: -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+RET_ENDP -+BEGIN(sub_unchecked) -+ subl %eax, (v) -+ sbbl %edx, 4(v) - RET_ENDP - #undef v - -@@ -96,6 +150,27 @@ BEGIN(sub_return) - sbbl $0, %edx - addl (v), %eax - adcl 4(v), %edx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 2f) -+#endif -+ -+ movl %eax, (v) -+ movl %edx, 4(v) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+2: -+#endif -+ -+RET_ENDP -+BEGIN(sub_return_unchecked) -+ negl %edx -+ negl %eax -+ sbbl $0, %edx -+ addl (v), %eax -+ adcl 4(v), %edx - movl %eax, (v) - movl %edx, 4(v) - RET_ENDP -@@ -105,6 +180,20 @@ RET_ENDP - BEGIN(inc) - addl $1, (v) - adcl $0, 4(v) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ jno 0f -+ subl $1, (v) -+ sbbl $0, 4(v) -+ int $4 -+0: -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+RET_ENDP -+BEGIN(inc_unchecked) -+ addl $1, (v) -+ adcl $0, 4(v) - RET_ENDP - #undef v - -@@ -114,6 +203,26 @@ BEGIN(inc_return) - movl 4(v), %edx - addl $1, %eax - adcl $0, %edx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 2f) -+#endif -+ -+ movl %eax, (v) -+ movl %edx, 4(v) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+2: -+#endif -+ -+RET_ENDP -+BEGIN(inc_return_unchecked) -+ movl (v), %eax -+ movl 4(v), %edx -+ addl $1, %eax -+ adcl $0, %edx - movl %eax, (v) - movl %edx, 4(v) - RET_ENDP -@@ -123,6 +232,20 @@ RET_ENDP - BEGIN(dec) - subl $1, (v) - sbbl $0, 4(v) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ jno 0f -+ addl $1, (v) -+ adcl $0, 4(v) -+ int $4 -+0: -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+RET_ENDP -+BEGIN(dec_unchecked) -+ subl $1, (v) -+ sbbl $0, 4(v) - RET_ENDP - #undef v - -@@ -132,6 +255,26 @@ BEGIN(dec_return) - movl 4(v), %edx - subl $1, %eax - sbbl $0, %edx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 2f) -+#endif -+ -+ movl %eax, (v) -+ movl %edx, 4(v) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+2: -+#endif -+ -+RET_ENDP -+BEGIN(dec_return_unchecked) -+ movl (v), %eax -+ movl 4(v), %edx -+ subl $1, %eax -+ sbbl $0, %edx - movl %eax, (v) - movl %edx, 4(v) - RET_ENDP -@@ -143,6 +286,13 @@ BEGIN(add_unless) - adcl %edx, %edi - addl (v), %eax - adcl 4(v), %edx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 2f) -+#endif -+ - cmpl %eax, %ecx - je 3f - 1: -@@ -168,6 +318,13 @@ BEGIN(inc_not_zero) - 1: - addl $1, %eax - adcl $0, %edx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 2f) -+#endif -+ - movl %eax, (v) - movl %edx, 4(v) - movl $1, %eax -@@ -186,6 +343,13 @@ BEGIN(dec_if_positive) - movl 4(v), %edx - subl $1, %eax - sbbl $0, %edx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 1f) -+#endif -+ - js 1f - movl %eax, (v) - movl %edx, 4(v) -diff --git a/arch/x86/lib/atomic64_cx8_32.S b/arch/x86/lib/atomic64_cx8_32.S -index f5cc9eb..51fa319 100644 ---- a/arch/x86/lib/atomic64_cx8_32.S -+++ b/arch/x86/lib/atomic64_cx8_32.S -@@ -35,10 +35,20 @@ ENTRY(atomic64_read_cx8) - CFI_STARTPROC - - read64 %ecx -+ pax_force_retaddr - ret - CFI_ENDPROC - ENDPROC(atomic64_read_cx8) - -+ENTRY(atomic64_read_unchecked_cx8) -+ CFI_STARTPROC -+ -+ read64 %ecx -+ pax_force_retaddr -+ ret -+ CFI_ENDPROC -+ENDPROC(atomic64_read_unchecked_cx8) -+ - ENTRY(atomic64_set_cx8) - CFI_STARTPROC - -@@ -48,10 +58,25 @@ ENTRY(atomic64_set_cx8) - cmpxchg8b (%esi) - jne 1b - -+ pax_force_retaddr - ret - CFI_ENDPROC - ENDPROC(atomic64_set_cx8) - -+ENTRY(atomic64_set_unchecked_cx8) -+ CFI_STARTPROC -+ -+1: -+/* we don't need LOCK_PREFIX since aligned 64-bit writes -+ * are atomic on 586 and newer */ -+ cmpxchg8b (%esi) -+ jne 1b -+ -+ pax_force_retaddr -+ ret -+ CFI_ENDPROC -+ENDPROC(atomic64_set_unchecked_cx8) -+ - ENTRY(atomic64_xchg_cx8) - CFI_STARTPROC - -@@ -60,12 +85,13 @@ ENTRY(atomic64_xchg_cx8) - cmpxchg8b (%esi) - jne 1b - -+ pax_force_retaddr - ret - CFI_ENDPROC - ENDPROC(atomic64_xchg_cx8) - --.macro addsub_return func ins insc --ENTRY(atomic64_\func\()_return_cx8) -+.macro addsub_return func ins insc unchecked="" -+ENTRY(atomic64_\func\()_return\unchecked\()_cx8) - CFI_STARTPROC - SAVE ebp - SAVE ebx -@@ -82,27 +108,44 @@ ENTRY(atomic64_\func\()_return_cx8) - movl %edx, %ecx - \ins\()l %esi, %ebx - \insc\()l %edi, %ecx -+ -+.ifb \unchecked -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+2: -+ _ASM_EXTABLE(2b, 3f) -+#endif -+.endif -+ - LOCK_PREFIX - cmpxchg8b (%ebp) - jne 1b -- --10: - movl %ebx, %eax - movl %ecx, %edx -+ -+.ifb \unchecked -+#ifdef CONFIG_PAX_REFCOUNT -+3: -+#endif -+.endif -+ - RESTORE edi - RESTORE esi - RESTORE ebx - RESTORE ebp -+ pax_force_retaddr - ret - CFI_ENDPROC --ENDPROC(atomic64_\func\()_return_cx8) -+ENDPROC(atomic64_\func\()_return\unchecked\()_cx8) - .endm - - addsub_return add add adc - addsub_return sub sub sbb -+addsub_return add add adc _unchecked -+addsub_return sub sub sbb _unchecked - --.macro incdec_return func ins insc --ENTRY(atomic64_\func\()_return_cx8) -+.macro incdec_return func ins insc unchecked="" -+ENTRY(atomic64_\func\()_return\unchecked\()_cx8) - CFI_STARTPROC - SAVE ebx - -@@ -112,21 +155,39 @@ ENTRY(atomic64_\func\()_return_cx8) - movl %edx, %ecx - \ins\()l $1, %ebx - \insc\()l $0, %ecx -+ -+.ifb \unchecked -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+2: -+ _ASM_EXTABLE(2b, 3f) -+#endif -+.endif -+ - LOCK_PREFIX - cmpxchg8b (%esi) - jne 1b - --10: - movl %ebx, %eax - movl %ecx, %edx -+ -+.ifb \unchecked -+#ifdef CONFIG_PAX_REFCOUNT -+3: -+#endif -+.endif -+ - RESTORE ebx -+ pax_force_retaddr - ret - CFI_ENDPROC --ENDPROC(atomic64_\func\()_return_cx8) -+ENDPROC(atomic64_\func\()_return\unchecked\()_cx8) - .endm - - incdec_return inc add adc - incdec_return dec sub sbb -+incdec_return inc add adc _unchecked -+incdec_return dec sub sbb _unchecked - - ENTRY(atomic64_dec_if_positive_cx8) - CFI_STARTPROC -@@ -138,6 +199,13 @@ ENTRY(atomic64_dec_if_positive_cx8) - movl %edx, %ecx - subl $1, %ebx - sbb $0, %ecx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 2f) -+#endif -+ - js 2f - LOCK_PREFIX - cmpxchg8b (%esi) -@@ -147,6 +215,7 @@ ENTRY(atomic64_dec_if_positive_cx8) - movl %ebx, %eax - movl %ecx, %edx - RESTORE ebx -+ pax_force_retaddr - ret - CFI_ENDPROC - ENDPROC(atomic64_dec_if_positive_cx8) -@@ -171,6 +240,13 @@ ENTRY(atomic64_add_unless_cx8) - movl %edx, %ecx - addl %ebp, %ebx - adcl %edi, %ecx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 3f) -+#endif -+ - LOCK_PREFIX - cmpxchg8b (%esi) - jne 1b -@@ -181,6 +257,7 @@ ENTRY(atomic64_add_unless_cx8) - CFI_ADJUST_CFA_OFFSET -8 - RESTORE ebx - RESTORE ebp -+ pax_force_retaddr - ret - 4: - cmpl %edx, 4(%esp) -@@ -203,6 +280,13 @@ ENTRY(atomic64_inc_not_zero_cx8) - xorl %ecx, %ecx - addl $1, %ebx - adcl %edx, %ecx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 3f) -+#endif -+ - LOCK_PREFIX - cmpxchg8b (%esi) - jne 1b -@@ -210,6 +294,7 @@ ENTRY(atomic64_inc_not_zero_cx8) - movl $1, %eax - 3: - RESTORE ebx -+ pax_force_retaddr - ret - CFI_ENDPROC - ENDPROC(atomic64_inc_not_zero_cx8) -diff --git a/arch/x86/lib/checksum_32.S b/arch/x86/lib/checksum_32.S -index 78d16a5..fbcf666 100644 ---- a/arch/x86/lib/checksum_32.S -+++ b/arch/x86/lib/checksum_32.S -@@ -28,7 +28,8 @@ - #include <linux/linkage.h> - #include <asm/dwarf2.h> - #include <asm/errno.h> -- -+#include <asm/segment.h> -+ - /* - * computes a partial checksum, e.g. for TCP/UDP fragments - */ -@@ -296,9 +297,24 @@ unsigned int csum_partial_copy_generic (const char *src, char *dst, - - #define ARGBASE 16 - #define FP 12 -- --ENTRY(csum_partial_copy_generic) -+ -+ENTRY(csum_partial_copy_generic_to_user) - CFI_STARTPROC -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pushl_cfi %gs -+ popl_cfi %es -+ jmp csum_partial_copy_generic -+#endif -+ -+ENTRY(csum_partial_copy_generic_from_user) -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pushl_cfi %gs -+ popl_cfi %ds -+#endif -+ -+ENTRY(csum_partial_copy_generic) - subl $4,%esp - CFI_ADJUST_CFA_OFFSET 4 - pushl_cfi %edi -@@ -320,7 +336,7 @@ ENTRY(csum_partial_copy_generic) - jmp 4f - SRC(1: movw (%esi), %bx ) - addl $2, %esi --DST( movw %bx, (%edi) ) -+DST( movw %bx, %es:(%edi) ) - addl $2, %edi - addw %bx, %ax - adcl $0, %eax -@@ -332,30 +348,30 @@ DST( movw %bx, (%edi) ) - SRC(1: movl (%esi), %ebx ) - SRC( movl 4(%esi), %edx ) - adcl %ebx, %eax --DST( movl %ebx, (%edi) ) -+DST( movl %ebx, %es:(%edi) ) - adcl %edx, %eax --DST( movl %edx, 4(%edi) ) -+DST( movl %edx, %es:4(%edi) ) - - SRC( movl 8(%esi), %ebx ) - SRC( movl 12(%esi), %edx ) - adcl %ebx, %eax --DST( movl %ebx, 8(%edi) ) -+DST( movl %ebx, %es:8(%edi) ) - adcl %edx, %eax --DST( movl %edx, 12(%edi) ) -+DST( movl %edx, %es:12(%edi) ) - - SRC( movl 16(%esi), %ebx ) - SRC( movl 20(%esi), %edx ) - adcl %ebx, %eax --DST( movl %ebx, 16(%edi) ) -+DST( movl %ebx, %es:16(%edi) ) - adcl %edx, %eax --DST( movl %edx, 20(%edi) ) -+DST( movl %edx, %es:20(%edi) ) - - SRC( movl 24(%esi), %ebx ) - SRC( movl 28(%esi), %edx ) - adcl %ebx, %eax --DST( movl %ebx, 24(%edi) ) -+DST( movl %ebx, %es:24(%edi) ) - adcl %edx, %eax --DST( movl %edx, 28(%edi) ) -+DST( movl %edx, %es:28(%edi) ) - - lea 32(%esi), %esi - lea 32(%edi), %edi -@@ -369,7 +385,7 @@ DST( movl %edx, 28(%edi) ) - shrl $2, %edx # This clears CF - SRC(3: movl (%esi), %ebx ) - adcl %ebx, %eax --DST( movl %ebx, (%edi) ) -+DST( movl %ebx, %es:(%edi) ) - lea 4(%esi), %esi - lea 4(%edi), %edi - dec %edx -@@ -381,12 +397,12 @@ DST( movl %ebx, (%edi) ) - jb 5f - SRC( movw (%esi), %cx ) - leal 2(%esi), %esi --DST( movw %cx, (%edi) ) -+DST( movw %cx, %es:(%edi) ) - leal 2(%edi), %edi - je 6f - shll $16,%ecx - SRC(5: movb (%esi), %cl ) --DST( movb %cl, (%edi) ) -+DST( movb %cl, %es:(%edi) ) - 6: addl %ecx, %eax - adcl $0, %eax - 7: -@@ -397,7 +413,7 @@ DST( movb %cl, (%edi) ) - - 6001: - movl ARGBASE+20(%esp), %ebx # src_err_ptr -- movl $-EFAULT, (%ebx) -+ movl $-EFAULT, %ss:(%ebx) - - # zero the complete destination - computing the rest - # is too much work -@@ -410,11 +426,15 @@ DST( movb %cl, (%edi) ) - - 6002: - movl ARGBASE+24(%esp), %ebx # dst_err_ptr -- movl $-EFAULT,(%ebx) -+ movl $-EFAULT,%ss:(%ebx) - jmp 5000b - - .previous - -+ pushl_cfi %ss -+ popl_cfi %ds -+ pushl_cfi %ss -+ popl_cfi %es - popl_cfi %ebx - CFI_RESTORE ebx - popl_cfi %esi -@@ -424,26 +444,43 @@ DST( movb %cl, (%edi) ) - popl_cfi %ecx # equivalent to addl $4,%esp - ret - CFI_ENDPROC --ENDPROC(csum_partial_copy_generic) -+ENDPROC(csum_partial_copy_generic_to_user) - - #else - - /* Version for PentiumII/PPro */ - - #define ROUND1(x) \ -+ nop; nop; nop; \ - SRC(movl x(%esi), %ebx ) ; \ - addl %ebx, %eax ; \ -- DST(movl %ebx, x(%edi) ) ; -+ DST(movl %ebx, %es:x(%edi)) ; - - #define ROUND(x) \ -+ nop; nop; nop; \ - SRC(movl x(%esi), %ebx ) ; \ - adcl %ebx, %eax ; \ -- DST(movl %ebx, x(%edi) ) ; -+ DST(movl %ebx, %es:x(%edi)) ; - - #define ARGBASE 12 -- --ENTRY(csum_partial_copy_generic) -+ -+ENTRY(csum_partial_copy_generic_to_user) - CFI_STARTPROC -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pushl_cfi %gs -+ popl_cfi %es -+ jmp csum_partial_copy_generic -+#endif -+ -+ENTRY(csum_partial_copy_generic_from_user) -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pushl_cfi %gs -+ popl_cfi %ds -+#endif -+ -+ENTRY(csum_partial_copy_generic) - pushl_cfi %ebx - CFI_REL_OFFSET ebx, 0 - pushl_cfi %edi -@@ -464,7 +501,7 @@ ENTRY(csum_partial_copy_generic) - subl %ebx, %edi - lea -1(%esi),%edx - andl $-32,%edx -- lea 3f(%ebx,%ebx), %ebx -+ lea 3f(%ebx,%ebx,2), %ebx - testl %esi, %esi - jmp *%ebx - 1: addl $64,%esi -@@ -485,19 +522,19 @@ ENTRY(csum_partial_copy_generic) - jb 5f - SRC( movw (%esi), %dx ) - leal 2(%esi), %esi --DST( movw %dx, (%edi) ) -+DST( movw %dx, %es:(%edi) ) - leal 2(%edi), %edi - je 6f - shll $16,%edx - 5: - SRC( movb (%esi), %dl ) --DST( movb %dl, (%edi) ) -+DST( movb %dl, %es:(%edi) ) - 6: addl %edx, %eax - adcl $0, %eax - 7: - .section .fixup, "ax" - 6001: movl ARGBASE+20(%esp), %ebx # src_err_ptr -- movl $-EFAULT, (%ebx) -+ movl $-EFAULT, %ss:(%ebx) - # zero the complete destination (computing the rest is too much work) - movl ARGBASE+8(%esp),%edi # dst - movl ARGBASE+12(%esp),%ecx # len -@@ -505,10 +542,17 @@ DST( movb %dl, (%edi) ) - rep; stosb - jmp 7b - 6002: movl ARGBASE+24(%esp), %ebx # dst_err_ptr -- movl $-EFAULT, (%ebx) -+ movl $-EFAULT, %ss:(%ebx) - jmp 7b - .previous - -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pushl_cfi %ss -+ popl_cfi %ds -+ pushl_cfi %ss -+ popl_cfi %es -+#endif -+ - popl_cfi %esi - CFI_RESTORE esi - popl_cfi %edi -@@ -517,7 +561,7 @@ DST( movb %dl, (%edi) ) - CFI_RESTORE ebx - ret - CFI_ENDPROC --ENDPROC(csum_partial_copy_generic) -+ENDPROC(csum_partial_copy_generic_to_user) - - #undef ROUND - #undef ROUND1 -diff --git a/arch/x86/lib/clear_page_64.S b/arch/x86/lib/clear_page_64.S -index f2145cf..cea889d 100644 ---- a/arch/x86/lib/clear_page_64.S -+++ b/arch/x86/lib/clear_page_64.S -@@ -11,6 +11,7 @@ ENTRY(clear_page_c) - movl $4096/8,%ecx - xorl %eax,%eax - rep stosq -+ pax_force_retaddr - ret - CFI_ENDPROC - ENDPROC(clear_page_c) -@@ -20,6 +21,7 @@ ENTRY(clear_page_c_e) - movl $4096,%ecx - xorl %eax,%eax - rep stosb -+ pax_force_retaddr - ret - CFI_ENDPROC - ENDPROC(clear_page_c_e) -@@ -43,6 +45,7 @@ ENTRY(clear_page) - leaq 64(%rdi),%rdi - jnz .Lloop - nop -+ pax_force_retaddr - ret - CFI_ENDPROC - .Lclear_page_end: -@@ -58,7 +61,7 @@ ENDPROC(clear_page) - - #include <asm/cpufeature.h> - -- .section .altinstr_replacement,"ax" -+ .section .altinstr_replacement,"a" - 1: .byte 0xeb /* jmp <disp8> */ - .byte (clear_page_c - clear_page) - (2f - 1b) /* offset */ - 2: .byte 0xeb /* jmp <disp8> */ -diff --git a/arch/x86/lib/cmpxchg16b_emu.S b/arch/x86/lib/cmpxchg16b_emu.S -index 1e572c5..2a162cd 100644 ---- a/arch/x86/lib/cmpxchg16b_emu.S -+++ b/arch/x86/lib/cmpxchg16b_emu.S -@@ -53,11 +53,13 @@ this_cpu_cmpxchg16b_emu: - - popf - mov $1, %al -+ pax_force_retaddr - ret - - not_same: - popf - xor %al,%al -+ pax_force_retaddr - ret - - CFI_ENDPROC -diff --git a/arch/x86/lib/copy_page_64.S b/arch/x86/lib/copy_page_64.S -index 6b34d04..dccb07f 100644 ---- a/arch/x86/lib/copy_page_64.S -+++ b/arch/x86/lib/copy_page_64.S -@@ -9,6 +9,7 @@ copy_page_c: - CFI_STARTPROC - movl $4096/8,%ecx - rep movsq -+ pax_force_retaddr - ret - CFI_ENDPROC - ENDPROC(copy_page_c) -@@ -20,12 +21,14 @@ ENDPROC(copy_page_c) - - ENTRY(copy_page) - CFI_STARTPROC -- subq $2*8,%rsp -- CFI_ADJUST_CFA_OFFSET 2*8 -+ subq $3*8,%rsp -+ CFI_ADJUST_CFA_OFFSET 3*8 - movq %rbx,(%rsp) - CFI_REL_OFFSET rbx, 0 - movq %r12,1*8(%rsp) - CFI_REL_OFFSET r12, 1*8 -+ movq %r13,2*8(%rsp) -+ CFI_REL_OFFSET r13, 2*8 - - movl $(4096/64)-5,%ecx - .p2align 4 -@@ -37,7 +40,7 @@ ENTRY(copy_page) - movq 16 (%rsi), %rdx - movq 24 (%rsi), %r8 - movq 32 (%rsi), %r9 -- movq 40 (%rsi), %r10 -+ movq 40 (%rsi), %r13 - movq 48 (%rsi), %r11 - movq 56 (%rsi), %r12 - -@@ -48,7 +51,7 @@ ENTRY(copy_page) - movq %rdx, 16 (%rdi) - movq %r8, 24 (%rdi) - movq %r9, 32 (%rdi) -- movq %r10, 40 (%rdi) -+ movq %r13, 40 (%rdi) - movq %r11, 48 (%rdi) - movq %r12, 56 (%rdi) - -@@ -67,7 +70,7 @@ ENTRY(copy_page) - movq 16 (%rsi), %rdx - movq 24 (%rsi), %r8 - movq 32 (%rsi), %r9 -- movq 40 (%rsi), %r10 -+ movq 40 (%rsi), %r13 - movq 48 (%rsi), %r11 - movq 56 (%rsi), %r12 - -@@ -76,7 +79,7 @@ ENTRY(copy_page) - movq %rdx, 16 (%rdi) - movq %r8, 24 (%rdi) - movq %r9, 32 (%rdi) -- movq %r10, 40 (%rdi) -+ movq %r13, 40 (%rdi) - movq %r11, 48 (%rdi) - movq %r12, 56 (%rdi) - -@@ -89,8 +92,11 @@ ENTRY(copy_page) - CFI_RESTORE rbx - movq 1*8(%rsp),%r12 - CFI_RESTORE r12 -- addq $2*8,%rsp -- CFI_ADJUST_CFA_OFFSET -2*8 -+ movq 2*8(%rsp),%r13 -+ CFI_RESTORE r13 -+ addq $3*8,%rsp -+ CFI_ADJUST_CFA_OFFSET -3*8 -+ pax_force_retaddr - ret - .Lcopy_page_end: - CFI_ENDPROC -@@ -101,7 +107,7 @@ ENDPROC(copy_page) - - #include <asm/cpufeature.h> - -- .section .altinstr_replacement,"ax" -+ .section .altinstr_replacement,"a" - 1: .byte 0xeb /* jmp <disp8> */ - .byte (copy_page_c - copy_page) - (2f - 1b) /* offset */ - 2: -diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S -index 0248402..821c786 100644 ---- a/arch/x86/lib/copy_user_64.S -+++ b/arch/x86/lib/copy_user_64.S -@@ -16,6 +16,7 @@ - #include <asm/thread_info.h> - #include <asm/cpufeature.h> - #include <asm/alternative-asm.h> -+#include <asm/pgtable.h> - - /* - * By placing feature2 after feature1 in altinstructions section, we logically -@@ -29,7 +30,7 @@ - .byte 0xe9 /* 32bit jump */ - .long \orig-1f /* by default jump to orig */ - 1: -- .section .altinstr_replacement,"ax" -+ .section .altinstr_replacement,"a" - 2: .byte 0xe9 /* near jump with 32bit immediate */ - .long \alt1-1b /* offset */ /* or alternatively to alt1 */ - 3: .byte 0xe9 /* near jump with 32bit immediate */ -@@ -71,47 +72,20 @@ - #endif - .endm - --/* Standard copy_to_user with segment limit checking */ --ENTRY(_copy_to_user) -- CFI_STARTPROC -- GET_THREAD_INFO(%rax) -- movq %rdi,%rcx -- addq %rdx,%rcx -- jc bad_to_user -- cmpq TI_addr_limit(%rax),%rcx -- ja bad_to_user -- ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS, \ -- copy_user_generic_unrolled,copy_user_generic_string, \ -- copy_user_enhanced_fast_string -- CFI_ENDPROC --ENDPROC(_copy_to_user) -- --/* Standard copy_from_user with segment limit checking */ --ENTRY(_copy_from_user) -- CFI_STARTPROC -- GET_THREAD_INFO(%rax) -- movq %rsi,%rcx -- addq %rdx,%rcx -- jc bad_from_user -- cmpq TI_addr_limit(%rax),%rcx -- ja bad_from_user -- ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS, \ -- copy_user_generic_unrolled,copy_user_generic_string, \ -- copy_user_enhanced_fast_string -- CFI_ENDPROC --ENDPROC(_copy_from_user) -- - .section .fixup,"ax" - /* must zero dest */ - ENTRY(bad_from_user) - bad_from_user: - CFI_STARTPROC -+ testl %edx,%edx -+ js bad_to_user - movl %edx,%ecx - xorl %eax,%eax - rep - stosb - bad_to_user: - movl %edx,%eax -+ pax_force_retaddr - ret - CFI_ENDPROC - ENDPROC(bad_from_user) -@@ -141,19 +115,19 @@ ENTRY(copy_user_generic_unrolled) - jz 17f - 1: movq (%rsi),%r8 - 2: movq 1*8(%rsi),%r9 --3: movq 2*8(%rsi),%r10 -+3: movq 2*8(%rsi),%rax - 4: movq 3*8(%rsi),%r11 - 5: movq %r8,(%rdi) - 6: movq %r9,1*8(%rdi) --7: movq %r10,2*8(%rdi) -+7: movq %rax,2*8(%rdi) - 8: movq %r11,3*8(%rdi) - 9: movq 4*8(%rsi),%r8 - 10: movq 5*8(%rsi),%r9 --11: movq 6*8(%rsi),%r10 -+11: movq 6*8(%rsi),%rax - 12: movq 7*8(%rsi),%r11 - 13: movq %r8,4*8(%rdi) - 14: movq %r9,5*8(%rdi) --15: movq %r10,6*8(%rdi) -+15: movq %rax,6*8(%rdi) - 16: movq %r11,7*8(%rdi) - leaq 64(%rsi),%rsi - leaq 64(%rdi),%rdi -@@ -179,6 +153,7 @@ ENTRY(copy_user_generic_unrolled) - decl %ecx - jnz 21b - 23: xor %eax,%eax -+ pax_force_retaddr - ret - - .section .fixup,"ax" -@@ -251,6 +226,7 @@ ENTRY(copy_user_generic_string) - 3: rep - movsb - 4: xorl %eax,%eax -+ pax_force_retaddr - ret - - .section .fixup,"ax" -@@ -287,6 +263,7 @@ ENTRY(copy_user_enhanced_fast_string) - 1: rep - movsb - 2: xorl %eax,%eax -+ pax_force_retaddr - ret - - .section .fixup,"ax" -diff --git a/arch/x86/lib/copy_user_nocache_64.S b/arch/x86/lib/copy_user_nocache_64.S -index cb0c112..e3a6895 100644 ---- a/arch/x86/lib/copy_user_nocache_64.S -+++ b/arch/x86/lib/copy_user_nocache_64.S -@@ -8,12 +8,14 @@ - - #include <linux/linkage.h> - #include <asm/dwarf2.h> -+#include <asm/alternative-asm.h> - - #define FIX_ALIGNMENT 1 - - #include <asm/current.h> - #include <asm/asm-offsets.h> - #include <asm/thread_info.h> -+#include <asm/pgtable.h> - - .macro ALIGN_DESTINATION - #ifdef FIX_ALIGNMENT -@@ -50,6 +52,15 @@ - */ - ENTRY(__copy_user_nocache) - CFI_STARTPROC -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ mov $PAX_USER_SHADOW_BASE,%rcx -+ cmp %rcx,%rsi -+ jae 1f -+ add %rcx,%rsi -+1: -+#endif -+ - cmpl $8,%edx - jb 20f /* less then 8 bytes, go to byte copy loop */ - ALIGN_DESTINATION -@@ -59,19 +70,19 @@ ENTRY(__copy_user_nocache) - jz 17f - 1: movq (%rsi),%r8 - 2: movq 1*8(%rsi),%r9 --3: movq 2*8(%rsi),%r10 -+3: movq 2*8(%rsi),%rax - 4: movq 3*8(%rsi),%r11 - 5: movnti %r8,(%rdi) - 6: movnti %r9,1*8(%rdi) --7: movnti %r10,2*8(%rdi) -+7: movnti %rax,2*8(%rdi) - 8: movnti %r11,3*8(%rdi) - 9: movq 4*8(%rsi),%r8 - 10: movq 5*8(%rsi),%r9 --11: movq 6*8(%rsi),%r10 -+11: movq 6*8(%rsi),%rax - 12: movq 7*8(%rsi),%r11 - 13: movnti %r8,4*8(%rdi) - 14: movnti %r9,5*8(%rdi) --15: movnti %r10,6*8(%rdi) -+15: movnti %rax,6*8(%rdi) - 16: movnti %r11,7*8(%rdi) - leaq 64(%rsi),%rsi - leaq 64(%rdi),%rdi -@@ -98,6 +109,7 @@ ENTRY(__copy_user_nocache) - jnz 21b - 23: xorl %eax,%eax - sfence -+ pax_force_retaddr - ret - - .section .fixup,"ax" -diff --git a/arch/x86/lib/csum-copy_64.S b/arch/x86/lib/csum-copy_64.S -index fb903b7..c92b7f7 100644 ---- a/arch/x86/lib/csum-copy_64.S -+++ b/arch/x86/lib/csum-copy_64.S -@@ -8,6 +8,7 @@ - #include <linux/linkage.h> - #include <asm/dwarf2.h> - #include <asm/errno.h> -+#include <asm/alternative-asm.h> - - /* - * Checksum copy with exception handling. -@@ -228,6 +229,7 @@ ENTRY(csum_partial_copy_generic) - CFI_RESTORE rbp - addq $7*8, %rsp - CFI_ADJUST_CFA_OFFSET -7*8 -+ pax_force_retaddr 0, 1 - ret - CFI_RESTORE_STATE - -diff --git a/arch/x86/lib/csum-wrappers_64.c b/arch/x86/lib/csum-wrappers_64.c -index 459b58a..9570bc7 100644 ---- a/arch/x86/lib/csum-wrappers_64.c -+++ b/arch/x86/lib/csum-wrappers_64.c -@@ -52,7 +52,13 @@ csum_partial_copy_from_user(const void __user *src, void *dst, - len -= 2; - } - } -- isum = csum_partial_copy_generic((__force const void *)src, -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)src < PAX_USER_SHADOW_BASE) -+ src += PAX_USER_SHADOW_BASE; -+#endif -+ -+ isum = csum_partial_copy_generic((const void __force_kernel *)src, - dst, len, isum, errp, NULL); - if (unlikely(*errp)) - goto out_err; -@@ -105,7 +111,13 @@ csum_partial_copy_to_user(const void *src, void __user *dst, - } - - *errp = 0; -- return csum_partial_copy_generic(src, (void __force *)dst, -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)dst < PAX_USER_SHADOW_BASE) -+ dst += PAX_USER_SHADOW_BASE; -+#endif -+ -+ return csum_partial_copy_generic(src, (void __force_kernel *)dst, - len, isum, NULL, errp); - } - EXPORT_SYMBOL(csum_partial_copy_to_user); -diff --git a/arch/x86/lib/getuser.S b/arch/x86/lib/getuser.S -index 51f1504..ddac4c1 100644 ---- a/arch/x86/lib/getuser.S -+++ b/arch/x86/lib/getuser.S -@@ -33,15 +33,38 @@ - #include <asm/asm-offsets.h> - #include <asm/thread_info.h> - #include <asm/asm.h> -+#include <asm/segment.h> -+#include <asm/pgtable.h> -+#include <asm/alternative-asm.h> -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF) -+#define __copyuser_seg gs; -+#else -+#define __copyuser_seg -+#endif - - .text - ENTRY(__get_user_1) - CFI_STARTPROC -+ -+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) - GET_THREAD_INFO(%_ASM_DX) - cmp TI_addr_limit(%_ASM_DX),%_ASM_AX - jae bad_get_user --1: movzb (%_ASM_AX),%edx -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ mov $PAX_USER_SHADOW_BASE,%_ASM_DX -+ cmp %_ASM_DX,%_ASM_AX -+ jae 1234f -+ add %_ASM_DX,%_ASM_AX -+1234: -+#endif -+ -+#endif -+ -+1: __copyuser_seg movzb (%_ASM_AX),%edx - xor %eax,%eax -+ pax_force_retaddr - ret - CFI_ENDPROC - ENDPROC(__get_user_1) -@@ -49,12 +72,26 @@ ENDPROC(__get_user_1) - ENTRY(__get_user_2) - CFI_STARTPROC - add $1,%_ASM_AX -+ -+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) - jc bad_get_user - GET_THREAD_INFO(%_ASM_DX) - cmp TI_addr_limit(%_ASM_DX),%_ASM_AX - jae bad_get_user --2: movzwl -1(%_ASM_AX),%edx -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ mov $PAX_USER_SHADOW_BASE,%_ASM_DX -+ cmp %_ASM_DX,%_ASM_AX -+ jae 1234f -+ add %_ASM_DX,%_ASM_AX -+1234: -+#endif -+ -+#endif -+ -+2: __copyuser_seg movzwl -1(%_ASM_AX),%edx - xor %eax,%eax -+ pax_force_retaddr - ret - CFI_ENDPROC - ENDPROC(__get_user_2) -@@ -62,12 +99,26 @@ ENDPROC(__get_user_2) - ENTRY(__get_user_4) - CFI_STARTPROC - add $3,%_ASM_AX -+ -+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) - jc bad_get_user - GET_THREAD_INFO(%_ASM_DX) - cmp TI_addr_limit(%_ASM_DX),%_ASM_AX - jae bad_get_user --3: mov -3(%_ASM_AX),%edx -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ mov $PAX_USER_SHADOW_BASE,%_ASM_DX -+ cmp %_ASM_DX,%_ASM_AX -+ jae 1234f -+ add %_ASM_DX,%_ASM_AX -+1234: -+#endif -+ -+#endif -+ -+3: __copyuser_seg mov -3(%_ASM_AX),%edx - xor %eax,%eax -+ pax_force_retaddr - ret - CFI_ENDPROC - ENDPROC(__get_user_4) -@@ -80,8 +131,18 @@ ENTRY(__get_user_8) - GET_THREAD_INFO(%_ASM_DX) - cmp TI_addr_limit(%_ASM_DX),%_ASM_AX - jae bad_get_user -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ mov $PAX_USER_SHADOW_BASE,%_ASM_DX -+ cmp %_ASM_DX,%_ASM_AX -+ jae 1234f -+ add %_ASM_DX,%_ASM_AX -+1234: -+#endif -+ - 4: movq -7(%_ASM_AX),%_ASM_DX - xor %eax,%eax -+ pax_force_retaddr - ret - CFI_ENDPROC - ENDPROC(__get_user_8) -@@ -91,6 +152,7 @@ bad_get_user: - CFI_STARTPROC - xor %edx,%edx - mov $(-EFAULT),%_ASM_AX -+ pax_force_retaddr - ret - CFI_ENDPROC - END(bad_get_user) -diff --git a/arch/x86/lib/insn.c b/arch/x86/lib/insn.c -index b1e6c4b..21ae8fc 100644 ---- a/arch/x86/lib/insn.c -+++ b/arch/x86/lib/insn.c -@@ -21,6 +21,11 @@ - #include <linux/string.h> - #include <asm/inat.h> - #include <asm/insn.h> -+#ifdef __KERNEL__ -+#include <asm/pgtable_types.h> -+#else -+#define ktla_ktva(addr) addr -+#endif - - /* Verify next sizeof(t) bytes can be on the same instruction */ - #define validate_next(t, insn, n) \ -@@ -49,8 +54,8 @@ - void insn_init(struct insn *insn, const void *kaddr, int x86_64) - { - memset(insn, 0, sizeof(*insn)); -- insn->kaddr = kaddr; -- insn->next_byte = kaddr; -+ insn->kaddr = ktla_ktva(kaddr); -+ insn->next_byte = ktla_ktva(kaddr); - insn->x86_64 = x86_64 ? 1 : 0; - insn->opnd_bytes = 4; - if (x86_64) -diff --git a/arch/x86/lib/iomap_copy_64.S b/arch/x86/lib/iomap_copy_64.S -index 05a95e7..326f2fa 100644 ---- a/arch/x86/lib/iomap_copy_64.S -+++ b/arch/x86/lib/iomap_copy_64.S -@@ -17,6 +17,7 @@ - - #include <linux/linkage.h> - #include <asm/dwarf2.h> -+#include <asm/alternative-asm.h> - - /* - * override generic version in lib/iomap_copy.c -@@ -25,6 +26,7 @@ ENTRY(__iowrite32_copy) - CFI_STARTPROC - movl %edx,%ecx - rep movsd -+ pax_force_retaddr - ret - CFI_ENDPROC - ENDPROC(__iowrite32_copy) -diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S -index 1c273be..da9cc0e 100644 ---- a/arch/x86/lib/memcpy_64.S -+++ b/arch/x86/lib/memcpy_64.S -@@ -33,6 +33,7 @@ - rep movsq - movl %edx, %ecx - rep movsb -+ pax_force_retaddr - ret - .Lmemcpy_e: - .previous -@@ -49,6 +50,7 @@ - movq %rdi, %rax - movq %rdx, %rcx - rep movsb -+ pax_force_retaddr - ret - .Lmemcpy_e_e: - .previous -@@ -76,13 +78,13 @@ ENTRY(memcpy) - */ - movq 0*8(%rsi), %r8 - movq 1*8(%rsi), %r9 -- movq 2*8(%rsi), %r10 -+ movq 2*8(%rsi), %rcx - movq 3*8(%rsi), %r11 - leaq 4*8(%rsi), %rsi - - movq %r8, 0*8(%rdi) - movq %r9, 1*8(%rdi) -- movq %r10, 2*8(%rdi) -+ movq %rcx, 2*8(%rdi) - movq %r11, 3*8(%rdi) - leaq 4*8(%rdi), %rdi - jae .Lcopy_forward_loop -@@ -105,12 +107,12 @@ ENTRY(memcpy) - subq $0x20, %rdx - movq -1*8(%rsi), %r8 - movq -2*8(%rsi), %r9 -- movq -3*8(%rsi), %r10 -+ movq -3*8(%rsi), %rcx - movq -4*8(%rsi), %r11 - leaq -4*8(%rsi), %rsi - movq %r8, -1*8(%rdi) - movq %r9, -2*8(%rdi) -- movq %r10, -3*8(%rdi) -+ movq %rcx, -3*8(%rdi) - movq %r11, -4*8(%rdi) - leaq -4*8(%rdi), %rdi - jae .Lcopy_backward_loop -@@ -130,12 +132,13 @@ ENTRY(memcpy) - */ - movq 0*8(%rsi), %r8 - movq 1*8(%rsi), %r9 -- movq -2*8(%rsi, %rdx), %r10 -+ movq -2*8(%rsi, %rdx), %rcx - movq -1*8(%rsi, %rdx), %r11 - movq %r8, 0*8(%rdi) - movq %r9, 1*8(%rdi) -- movq %r10, -2*8(%rdi, %rdx) -+ movq %rcx, -2*8(%rdi, %rdx) - movq %r11, -1*8(%rdi, %rdx) -+ pax_force_retaddr - retq - .p2align 4 - .Lless_16bytes: -@@ -148,6 +151,7 @@ ENTRY(memcpy) - movq -1*8(%rsi, %rdx), %r9 - movq %r8, 0*8(%rdi) - movq %r9, -1*8(%rdi, %rdx) -+ pax_force_retaddr - retq - .p2align 4 - .Lless_8bytes: -@@ -161,6 +165,7 @@ ENTRY(memcpy) - movl -4(%rsi, %rdx), %r8d - movl %ecx, (%rdi) - movl %r8d, -4(%rdi, %rdx) -+ pax_force_retaddr - retq - .p2align 4 - .Lless_3bytes: -@@ -179,6 +184,7 @@ ENTRY(memcpy) - movb %cl, (%rdi) - - .Lend: -+ pax_force_retaddr - retq - CFI_ENDPROC - ENDPROC(memcpy) -diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S -index ee16461..c39c199 100644 ---- a/arch/x86/lib/memmove_64.S -+++ b/arch/x86/lib/memmove_64.S -@@ -61,13 +61,13 @@ ENTRY(memmove) - 5: - sub $0x20, %rdx - movq 0*8(%rsi), %r11 -- movq 1*8(%rsi), %r10 -+ movq 1*8(%rsi), %rcx - movq 2*8(%rsi), %r9 - movq 3*8(%rsi), %r8 - leaq 4*8(%rsi), %rsi - - movq %r11, 0*8(%rdi) -- movq %r10, 1*8(%rdi) -+ movq %rcx, 1*8(%rdi) - movq %r9, 2*8(%rdi) - movq %r8, 3*8(%rdi) - leaq 4*8(%rdi), %rdi -@@ -81,10 +81,10 @@ ENTRY(memmove) - 4: - movq %rdx, %rcx - movq -8(%rsi, %rdx), %r11 -- lea -8(%rdi, %rdx), %r10 -+ lea -8(%rdi, %rdx), %r9 - shrq $3, %rcx - rep movsq -- movq %r11, (%r10) -+ movq %r11, (%r9) - jmp 13f - .Lmemmove_end_forward: - -@@ -95,14 +95,14 @@ ENTRY(memmove) - 7: - movq %rdx, %rcx - movq (%rsi), %r11 -- movq %rdi, %r10 -+ movq %rdi, %r9 - leaq -8(%rsi, %rdx), %rsi - leaq -8(%rdi, %rdx), %rdi - shrq $3, %rcx - std - rep movsq - cld -- movq %r11, (%r10) -+ movq %r11, (%r9) - jmp 13f - - /* -@@ -127,13 +127,13 @@ ENTRY(memmove) - 8: - subq $0x20, %rdx - movq -1*8(%rsi), %r11 -- movq -2*8(%rsi), %r10 -+ movq -2*8(%rsi), %rcx - movq -3*8(%rsi), %r9 - movq -4*8(%rsi), %r8 - leaq -4*8(%rsi), %rsi - - movq %r11, -1*8(%rdi) -- movq %r10, -2*8(%rdi) -+ movq %rcx, -2*8(%rdi) - movq %r9, -3*8(%rdi) - movq %r8, -4*8(%rdi) - leaq -4*8(%rdi), %rdi -@@ -151,11 +151,11 @@ ENTRY(memmove) - * Move data from 16 bytes to 31 bytes. - */ - movq 0*8(%rsi), %r11 -- movq 1*8(%rsi), %r10 -+ movq 1*8(%rsi), %rcx - movq -2*8(%rsi, %rdx), %r9 - movq -1*8(%rsi, %rdx), %r8 - movq %r11, 0*8(%rdi) -- movq %r10, 1*8(%rdi) -+ movq %rcx, 1*8(%rdi) - movq %r9, -2*8(%rdi, %rdx) - movq %r8, -1*8(%rdi, %rdx) - jmp 13f -@@ -167,9 +167,9 @@ ENTRY(memmove) - * Move data from 8 bytes to 15 bytes. - */ - movq 0*8(%rsi), %r11 -- movq -1*8(%rsi, %rdx), %r10 -+ movq -1*8(%rsi, %rdx), %r9 - movq %r11, 0*8(%rdi) -- movq %r10, -1*8(%rdi, %rdx) -+ movq %r9, -1*8(%rdi, %rdx) - jmp 13f - 10: - cmpq $4, %rdx -@@ -178,9 +178,9 @@ ENTRY(memmove) - * Move data from 4 bytes to 7 bytes. - */ - movl (%rsi), %r11d -- movl -4(%rsi, %rdx), %r10d -+ movl -4(%rsi, %rdx), %r9d - movl %r11d, (%rdi) -- movl %r10d, -4(%rdi, %rdx) -+ movl %r9d, -4(%rdi, %rdx) - jmp 13f - 11: - cmp $2, %rdx -@@ -189,9 +189,9 @@ ENTRY(memmove) - * Move data from 2 bytes to 3 bytes. - */ - movw (%rsi), %r11w -- movw -2(%rsi, %rdx), %r10w -+ movw -2(%rsi, %rdx), %r9w - movw %r11w, (%rdi) -- movw %r10w, -2(%rdi, %rdx) -+ movw %r9w, -2(%rdi, %rdx) - jmp 13f - 12: - cmp $1, %rdx -@@ -202,6 +202,7 @@ ENTRY(memmove) - movb (%rsi), %r11b - movb %r11b, (%rdi) - 13: -+ pax_force_retaddr - retq - CFI_ENDPROC - -@@ -210,6 +211,7 @@ ENTRY(memmove) - /* Forward moving data. */ - movq %rdx, %rcx - rep movsb -+ pax_force_retaddr - retq - .Lmemmove_end_forward_efs: - .previous -diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S -index 2dcb380..963660a 100644 ---- a/arch/x86/lib/memset_64.S -+++ b/arch/x86/lib/memset_64.S -@@ -30,6 +30,7 @@ - movl %edx,%ecx - rep stosb - movq %r9,%rax -+ pax_force_retaddr - ret - .Lmemset_e: - .previous -@@ -52,6 +53,7 @@ - movq %rdx,%rcx - rep stosb - movq %r9,%rax -+ pax_force_retaddr - ret - .Lmemset_e_e: - .previous -@@ -59,7 +61,7 @@ - ENTRY(memset) - ENTRY(__memset) - CFI_STARTPROC -- movq %rdi,%r10 -+ movq %rdi,%r11 - - /* expand byte value */ - movzbl %sil,%ecx -@@ -117,7 +119,8 @@ ENTRY(__memset) - jnz .Lloop_1 - - .Lende: -- movq %r10,%rax -+ movq %r11,%rax -+ pax_force_retaddr - ret - - CFI_RESTORE_STATE -diff --git a/arch/x86/lib/mmx_32.c b/arch/x86/lib/mmx_32.c -index c9f2d9b..e7fd2c0 100644 ---- a/arch/x86/lib/mmx_32.c -+++ b/arch/x86/lib/mmx_32.c -@@ -29,6 +29,7 @@ void *_mmx_memcpy(void *to, const void *from, size_t len) - { - void *p; - int i; -+ unsigned long cr0; - - if (unlikely(in_interrupt())) - return __memcpy(to, from, len); -@@ -39,44 +40,72 @@ void *_mmx_memcpy(void *to, const void *from, size_t len) - kernel_fpu_begin(); - - __asm__ __volatile__ ( -- "1: prefetch (%0)\n" /* This set is 28 bytes */ -- " prefetch 64(%0)\n" -- " prefetch 128(%0)\n" -- " prefetch 192(%0)\n" -- " prefetch 256(%0)\n" -+ "1: prefetch (%1)\n" /* This set is 28 bytes */ -+ " prefetch 64(%1)\n" -+ " prefetch 128(%1)\n" -+ " prefetch 192(%1)\n" -+ " prefetch 256(%1)\n" - "2: \n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ "3: \n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" - _ASM_EXTABLE(1b, 3b) -- : : "r" (from)); -+ : "=&r" (cr0) : "r" (from) : "ax"); - - for ( ; i > 5; i--) { - __asm__ __volatile__ ( -- "1: prefetch 320(%0)\n" -- "2: movq (%0), %%mm0\n" -- " movq 8(%0), %%mm1\n" -- " movq 16(%0), %%mm2\n" -- " movq 24(%0), %%mm3\n" -- " movq %%mm0, (%1)\n" -- " movq %%mm1, 8(%1)\n" -- " movq %%mm2, 16(%1)\n" -- " movq %%mm3, 24(%1)\n" -- " movq 32(%0), %%mm0\n" -- " movq 40(%0), %%mm1\n" -- " movq 48(%0), %%mm2\n" -- " movq 56(%0), %%mm3\n" -- " movq %%mm0, 32(%1)\n" -- " movq %%mm1, 40(%1)\n" -- " movq %%mm2, 48(%1)\n" -- " movq %%mm3, 56(%1)\n" -+ "1: prefetch 320(%1)\n" -+ "2: movq (%1), %%mm0\n" -+ " movq 8(%1), %%mm1\n" -+ " movq 16(%1), %%mm2\n" -+ " movq 24(%1), %%mm3\n" -+ " movq %%mm0, (%2)\n" -+ " movq %%mm1, 8(%2)\n" -+ " movq %%mm2, 16(%2)\n" -+ " movq %%mm3, 24(%2)\n" -+ " movq 32(%1), %%mm0\n" -+ " movq 40(%1), %%mm1\n" -+ " movq 48(%1), %%mm2\n" -+ " movq 56(%1), %%mm3\n" -+ " movq %%mm0, 32(%2)\n" -+ " movq %%mm1, 40(%2)\n" -+ " movq %%mm2, 48(%2)\n" -+ " movq %%mm3, 56(%2)\n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ "3:\n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" - _ASM_EXTABLE(1b, 3b) -- : : "r" (from), "r" (to) : "memory"); -+ : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax"); - - from += 64; - to += 64; -@@ -158,6 +187,7 @@ static void fast_clear_page(void *page) - static void fast_copy_page(void *to, void *from) - { - int i; -+ unsigned long cr0; - - kernel_fpu_begin(); - -@@ -166,42 +196,70 @@ static void fast_copy_page(void *to, void *from) - * but that is for later. -AV - */ - __asm__ __volatile__( -- "1: prefetch (%0)\n" -- " prefetch 64(%0)\n" -- " prefetch 128(%0)\n" -- " prefetch 192(%0)\n" -- " prefetch 256(%0)\n" -+ "1: prefetch (%1)\n" -+ " prefetch 64(%1)\n" -+ " prefetch 128(%1)\n" -+ " prefetch 192(%1)\n" -+ " prefetch 256(%1)\n" - "2: \n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ "3: \n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" -- _ASM_EXTABLE(1b, 3b) : : "r" (from)); -+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax"); - - for (i = 0; i < (4096-320)/64; i++) { - __asm__ __volatile__ ( -- "1: prefetch 320(%0)\n" -- "2: movq (%0), %%mm0\n" -- " movntq %%mm0, (%1)\n" -- " movq 8(%0), %%mm1\n" -- " movntq %%mm1, 8(%1)\n" -- " movq 16(%0), %%mm2\n" -- " movntq %%mm2, 16(%1)\n" -- " movq 24(%0), %%mm3\n" -- " movntq %%mm3, 24(%1)\n" -- " movq 32(%0), %%mm4\n" -- " movntq %%mm4, 32(%1)\n" -- " movq 40(%0), %%mm5\n" -- " movntq %%mm5, 40(%1)\n" -- " movq 48(%0), %%mm6\n" -- " movntq %%mm6, 48(%1)\n" -- " movq 56(%0), %%mm7\n" -- " movntq %%mm7, 56(%1)\n" -+ "1: prefetch 320(%1)\n" -+ "2: movq (%1), %%mm0\n" -+ " movntq %%mm0, (%2)\n" -+ " movq 8(%1), %%mm1\n" -+ " movntq %%mm1, 8(%2)\n" -+ " movq 16(%1), %%mm2\n" -+ " movntq %%mm2, 16(%2)\n" -+ " movq 24(%1), %%mm3\n" -+ " movntq %%mm3, 24(%2)\n" -+ " movq 32(%1), %%mm4\n" -+ " movntq %%mm4, 32(%2)\n" -+ " movq 40(%1), %%mm5\n" -+ " movntq %%mm5, 40(%2)\n" -+ " movq 48(%1), %%mm6\n" -+ " movntq %%mm6, 48(%2)\n" -+ " movq 56(%1), %%mm7\n" -+ " movntq %%mm7, 56(%2)\n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ "3:\n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" -- _ASM_EXTABLE(1b, 3b) : : "r" (from), "r" (to) : "memory"); -+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax"); - - from += 64; - to += 64; -@@ -280,47 +338,76 @@ static void fast_clear_page(void *page) - static void fast_copy_page(void *to, void *from) - { - int i; -+ unsigned long cr0; - - kernel_fpu_begin(); - - __asm__ __volatile__ ( -- "1: prefetch (%0)\n" -- " prefetch 64(%0)\n" -- " prefetch 128(%0)\n" -- " prefetch 192(%0)\n" -- " prefetch 256(%0)\n" -+ "1: prefetch (%1)\n" -+ " prefetch 64(%1)\n" -+ " prefetch 128(%1)\n" -+ " prefetch 192(%1)\n" -+ " prefetch 256(%1)\n" - "2: \n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ "3: \n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" -- _ASM_EXTABLE(1b, 3b) : : "r" (from)); -+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax"); - - for (i = 0; i < 4096/64; i++) { - __asm__ __volatile__ ( -- "1: prefetch 320(%0)\n" -- "2: movq (%0), %%mm0\n" -- " movq 8(%0), %%mm1\n" -- " movq 16(%0), %%mm2\n" -- " movq 24(%0), %%mm3\n" -- " movq %%mm0, (%1)\n" -- " movq %%mm1, 8(%1)\n" -- " movq %%mm2, 16(%1)\n" -- " movq %%mm3, 24(%1)\n" -- " movq 32(%0), %%mm0\n" -- " movq 40(%0), %%mm1\n" -- " movq 48(%0), %%mm2\n" -- " movq 56(%0), %%mm3\n" -- " movq %%mm0, 32(%1)\n" -- " movq %%mm1, 40(%1)\n" -- " movq %%mm2, 48(%1)\n" -- " movq %%mm3, 56(%1)\n" -+ "1: prefetch 320(%1)\n" -+ "2: movq (%1), %%mm0\n" -+ " movq 8(%1), %%mm1\n" -+ " movq 16(%1), %%mm2\n" -+ " movq 24(%1), %%mm3\n" -+ " movq %%mm0, (%2)\n" -+ " movq %%mm1, 8(%2)\n" -+ " movq %%mm2, 16(%2)\n" -+ " movq %%mm3, 24(%2)\n" -+ " movq 32(%1), %%mm0\n" -+ " movq 40(%1), %%mm1\n" -+ " movq 48(%1), %%mm2\n" -+ " movq 56(%1), %%mm3\n" -+ " movq %%mm0, 32(%2)\n" -+ " movq %%mm1, 40(%2)\n" -+ " movq %%mm2, 48(%2)\n" -+ " movq %%mm3, 56(%2)\n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ "3:\n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" - _ASM_EXTABLE(1b, 3b) -- : : "r" (from), "r" (to) : "memory"); -+ : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax"); - - from += 64; - to += 64; -diff --git a/arch/x86/lib/msr-reg.S b/arch/x86/lib/msr-reg.S -index 69fa106..adda88b 100644 ---- a/arch/x86/lib/msr-reg.S -+++ b/arch/x86/lib/msr-reg.S -@@ -3,6 +3,7 @@ - #include <asm/dwarf2.h> - #include <asm/asm.h> - #include <asm/msr.h> -+#include <asm/alternative-asm.h> - - #ifdef CONFIG_X86_64 - /* -@@ -16,7 +17,7 @@ ENTRY(native_\op\()_safe_regs) - CFI_STARTPROC - pushq_cfi %rbx - pushq_cfi %rbp -- movq %rdi, %r10 /* Save pointer */ -+ movq %rdi, %r9 /* Save pointer */ - xorl %r11d, %r11d /* Return value */ - movl (%rdi), %eax - movl 4(%rdi), %ecx -@@ -27,16 +28,17 @@ ENTRY(native_\op\()_safe_regs) - movl 28(%rdi), %edi - CFI_REMEMBER_STATE - 1: \op --2: movl %eax, (%r10) -+2: movl %eax, (%r9) - movl %r11d, %eax /* Return value */ -- movl %ecx, 4(%r10) -- movl %edx, 8(%r10) -- movl %ebx, 12(%r10) -- movl %ebp, 20(%r10) -- movl %esi, 24(%r10) -- movl %edi, 28(%r10) -+ movl %ecx, 4(%r9) -+ movl %edx, 8(%r9) -+ movl %ebx, 12(%r9) -+ movl %ebp, 20(%r9) -+ movl %esi, 24(%r9) -+ movl %edi, 28(%r9) - popq_cfi %rbp - popq_cfi %rbx -+ pax_force_retaddr - ret - 3: - CFI_RESTORE_STATE -diff --git a/arch/x86/lib/putuser.S b/arch/x86/lib/putuser.S -index 36b0d15..d381858 100644 ---- a/arch/x86/lib/putuser.S -+++ b/arch/x86/lib/putuser.S -@@ -15,7 +15,9 @@ - #include <asm/thread_info.h> - #include <asm/errno.h> - #include <asm/asm.h> -- -+#include <asm/segment.h> -+#include <asm/pgtable.h> -+#include <asm/alternative-asm.h> - - /* - * __put_user_X -@@ -29,52 +31,119 @@ - * as they get called from within inline assembly. - */ - --#define ENTER CFI_STARTPROC ; \ -- GET_THREAD_INFO(%_ASM_BX) --#define EXIT ret ; \ -+#define ENTER CFI_STARTPROC -+#define EXIT pax_force_retaddr; ret ; \ - CFI_ENDPROC - -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+#define _DEST %_ASM_CX,%_ASM_BX -+#else -+#define _DEST %_ASM_CX -+#endif -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF) -+#define __copyuser_seg gs; -+#else -+#define __copyuser_seg -+#endif -+ - .text - ENTRY(__put_user_1) - ENTER -+ -+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) -+ GET_THREAD_INFO(%_ASM_BX) - cmp TI_addr_limit(%_ASM_BX),%_ASM_CX - jae bad_put_user --1: movb %al,(%_ASM_CX) -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ mov $PAX_USER_SHADOW_BASE,%_ASM_BX -+ cmp %_ASM_BX,%_ASM_CX -+ jb 1234f -+ xor %ebx,%ebx -+1234: -+#endif -+ -+#endif -+ -+1: __copyuser_seg movb %al,(_DEST) - xor %eax,%eax - EXIT - ENDPROC(__put_user_1) - - ENTRY(__put_user_2) - ENTER -+ -+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) -+ GET_THREAD_INFO(%_ASM_BX) - mov TI_addr_limit(%_ASM_BX),%_ASM_BX - sub $1,%_ASM_BX - cmp %_ASM_BX,%_ASM_CX - jae bad_put_user --2: movw %ax,(%_ASM_CX) -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ mov $PAX_USER_SHADOW_BASE,%_ASM_BX -+ cmp %_ASM_BX,%_ASM_CX -+ jb 1234f -+ xor %ebx,%ebx -+1234: -+#endif -+ -+#endif -+ -+2: __copyuser_seg movw %ax,(_DEST) - xor %eax,%eax - EXIT - ENDPROC(__put_user_2) - - ENTRY(__put_user_4) - ENTER -+ -+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) -+ GET_THREAD_INFO(%_ASM_BX) - mov TI_addr_limit(%_ASM_BX),%_ASM_BX - sub $3,%_ASM_BX - cmp %_ASM_BX,%_ASM_CX - jae bad_put_user --3: movl %eax,(%_ASM_CX) -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ mov $PAX_USER_SHADOW_BASE,%_ASM_BX -+ cmp %_ASM_BX,%_ASM_CX -+ jb 1234f -+ xor %ebx,%ebx -+1234: -+#endif -+ -+#endif -+ -+3: __copyuser_seg movl %eax,(_DEST) - xor %eax,%eax - EXIT - ENDPROC(__put_user_4) - - ENTRY(__put_user_8) - ENTER -+ -+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) -+ GET_THREAD_INFO(%_ASM_BX) - mov TI_addr_limit(%_ASM_BX),%_ASM_BX - sub $7,%_ASM_BX - cmp %_ASM_BX,%_ASM_CX - jae bad_put_user --4: mov %_ASM_AX,(%_ASM_CX) -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ mov $PAX_USER_SHADOW_BASE,%_ASM_BX -+ cmp %_ASM_BX,%_ASM_CX -+ jb 1234f -+ xor %ebx,%ebx -+1234: -+#endif -+ -+#endif -+ -+4: __copyuser_seg mov %_ASM_AX,(_DEST) - #ifdef CONFIG_X86_32 --5: movl %edx,4(%_ASM_CX) -+5: __copyuser_seg movl %edx,4(_DEST) - #endif - xor %eax,%eax - EXIT -diff --git a/arch/x86/lib/rwlock.S b/arch/x86/lib/rwlock.S -index 1cad221..de671ee 100644 ---- a/arch/x86/lib/rwlock.S -+++ b/arch/x86/lib/rwlock.S -@@ -16,13 +16,34 @@ ENTRY(__write_lock_failed) - FRAME - 0: LOCK_PREFIX - WRITE_LOCK_ADD($RW_LOCK_BIAS) (%__lock_ptr) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ jno 1234f -+ LOCK_PREFIX -+ WRITE_LOCK_SUB($RW_LOCK_BIAS) (%__lock_ptr) -+ int $4 -+1234: -+ _ASM_EXTABLE(1234b, 1234b) -+#endif -+ - 1: rep; nop - cmpl $WRITE_LOCK_CMP, (%__lock_ptr) - jne 1b - LOCK_PREFIX - WRITE_LOCK_SUB($RW_LOCK_BIAS) (%__lock_ptr) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ jno 1234f -+ LOCK_PREFIX -+ WRITE_LOCK_ADD($RW_LOCK_BIAS) (%__lock_ptr) -+ int $4 -+1234: -+ _ASM_EXTABLE(1234b, 1234b) -+#endif -+ - jnz 0b - ENDFRAME -+ pax_force_retaddr - ret - CFI_ENDPROC - END(__write_lock_failed) -@@ -32,13 +53,34 @@ ENTRY(__read_lock_failed) - FRAME - 0: LOCK_PREFIX - READ_LOCK_SIZE(inc) (%__lock_ptr) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ jno 1234f -+ LOCK_PREFIX -+ READ_LOCK_SIZE(dec) (%__lock_ptr) -+ int $4 -+1234: -+ _ASM_EXTABLE(1234b, 1234b) -+#endif -+ - 1: rep; nop - READ_LOCK_SIZE(cmp) $1, (%__lock_ptr) - js 1b - LOCK_PREFIX - READ_LOCK_SIZE(dec) (%__lock_ptr) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ jno 1234f -+ LOCK_PREFIX -+ READ_LOCK_SIZE(inc) (%__lock_ptr) -+ int $4 -+1234: -+ _ASM_EXTABLE(1234b, 1234b) -+#endif -+ - js 0b - ENDFRAME -+ pax_force_retaddr - ret - CFI_ENDPROC - END(__read_lock_failed) -diff --git a/arch/x86/lib/rwsem.S b/arch/x86/lib/rwsem.S -index 5dff5f0..cadebf4 100644 ---- a/arch/x86/lib/rwsem.S -+++ b/arch/x86/lib/rwsem.S -@@ -94,6 +94,7 @@ ENTRY(call_rwsem_down_read_failed) - __ASM_SIZE(pop,_cfi) %__ASM_REG(dx) - CFI_RESTORE __ASM_REG(dx) - restore_common_regs -+ pax_force_retaddr - ret - CFI_ENDPROC - ENDPROC(call_rwsem_down_read_failed) -@@ -104,6 +105,7 @@ ENTRY(call_rwsem_down_write_failed) - movq %rax,%rdi - call rwsem_down_write_failed - restore_common_regs -+ pax_force_retaddr - ret - CFI_ENDPROC - ENDPROC(call_rwsem_down_write_failed) -@@ -117,7 +119,8 @@ ENTRY(call_rwsem_wake) - movq %rax,%rdi - call rwsem_wake - restore_common_regs --1: ret -+1: pax_force_retaddr -+ ret - CFI_ENDPROC - ENDPROC(call_rwsem_wake) - -@@ -131,6 +134,7 @@ ENTRY(call_rwsem_downgrade_wake) - __ASM_SIZE(pop,_cfi) %__ASM_REG(dx) - CFI_RESTORE __ASM_REG(dx) - restore_common_regs -+ pax_force_retaddr - ret - CFI_ENDPROC - ENDPROC(call_rwsem_downgrade_wake) -diff --git a/arch/x86/lib/thunk_64.S b/arch/x86/lib/thunk_64.S -index a63efd6..ccecad8 100644 ---- a/arch/x86/lib/thunk_64.S -+++ b/arch/x86/lib/thunk_64.S -@@ -8,6 +8,7 @@ - #include <linux/linkage.h> - #include <asm/dwarf2.h> - #include <asm/calling.h> -+#include <asm/alternative-asm.h> - - /* rdi: arg1 ... normal C conventions. rax is saved/restored. */ - .macro THUNK name, func, put_ret_addr_in_rdi=0 -@@ -41,5 +42,6 @@ - SAVE_ARGS - restore: - RESTORE_ARGS -+ pax_force_retaddr - ret - CFI_ENDPROC -diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c -index ef2a6a5..3b28862 100644 ---- a/arch/x86/lib/usercopy_32.c -+++ b/arch/x86/lib/usercopy_32.c -@@ -41,10 +41,12 @@ do { \ - int __d0; \ - might_fault(); \ - __asm__ __volatile__( \ -+ __COPYUSER_SET_ES \ - "0: rep; stosl\n" \ - " movl %2,%0\n" \ - "1: rep; stosb\n" \ - "2:\n" \ -+ __COPYUSER_RESTORE_ES \ - ".section .fixup,\"ax\"\n" \ - "3: lea 0(%2,%0,4),%0\n" \ - " jmp 2b\n" \ -@@ -113,6 +115,7 @@ long strnlen_user(const char __user *s, long n) - might_fault(); - - __asm__ __volatile__( -+ __COPYUSER_SET_ES - " testl %0, %0\n" - " jz 3f\n" - " andl %0,%%ecx\n" -@@ -121,6 +124,7 @@ long strnlen_user(const char __user *s, long n) - " subl %%ecx,%0\n" - " addl %0,%%eax\n" - "1:\n" -+ __COPYUSER_RESTORE_ES - ".section .fixup,\"ax\"\n" - "2: xorl %%eax,%%eax\n" - " jmp 1b\n" -@@ -140,7 +144,7 @@ EXPORT_SYMBOL(strnlen_user); - - #ifdef CONFIG_X86_INTEL_USERCOPY - static unsigned long --__copy_user_intel(void __user *to, const void *from, unsigned long size) -+__generic_copy_to_user_intel(void __user *to, const void *from, unsigned long size) - { - int d0, d1; - __asm__ __volatile__( -@@ -152,36 +156,36 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size) - " .align 2,0x90\n" - "3: movl 0(%4), %%eax\n" - "4: movl 4(%4), %%edx\n" -- "5: movl %%eax, 0(%3)\n" -- "6: movl %%edx, 4(%3)\n" -+ "5: "__copyuser_seg" movl %%eax, 0(%3)\n" -+ "6: "__copyuser_seg" movl %%edx, 4(%3)\n" - "7: movl 8(%4), %%eax\n" - "8: movl 12(%4),%%edx\n" -- "9: movl %%eax, 8(%3)\n" -- "10: movl %%edx, 12(%3)\n" -+ "9: "__copyuser_seg" movl %%eax, 8(%3)\n" -+ "10: "__copyuser_seg" movl %%edx, 12(%3)\n" - "11: movl 16(%4), %%eax\n" - "12: movl 20(%4), %%edx\n" -- "13: movl %%eax, 16(%3)\n" -- "14: movl %%edx, 20(%3)\n" -+ "13: "__copyuser_seg" movl %%eax, 16(%3)\n" -+ "14: "__copyuser_seg" movl %%edx, 20(%3)\n" - "15: movl 24(%4), %%eax\n" - "16: movl 28(%4), %%edx\n" -- "17: movl %%eax, 24(%3)\n" -- "18: movl %%edx, 28(%3)\n" -+ "17: "__copyuser_seg" movl %%eax, 24(%3)\n" -+ "18: "__copyuser_seg" movl %%edx, 28(%3)\n" - "19: movl 32(%4), %%eax\n" - "20: movl 36(%4), %%edx\n" -- "21: movl %%eax, 32(%3)\n" -- "22: movl %%edx, 36(%3)\n" -+ "21: "__copyuser_seg" movl %%eax, 32(%3)\n" -+ "22: "__copyuser_seg" movl %%edx, 36(%3)\n" - "23: movl 40(%4), %%eax\n" - "24: movl 44(%4), %%edx\n" -- "25: movl %%eax, 40(%3)\n" -- "26: movl %%edx, 44(%3)\n" -+ "25: "__copyuser_seg" movl %%eax, 40(%3)\n" -+ "26: "__copyuser_seg" movl %%edx, 44(%3)\n" - "27: movl 48(%4), %%eax\n" - "28: movl 52(%4), %%edx\n" -- "29: movl %%eax, 48(%3)\n" -- "30: movl %%edx, 52(%3)\n" -+ "29: "__copyuser_seg" movl %%eax, 48(%3)\n" -+ "30: "__copyuser_seg" movl %%edx, 52(%3)\n" - "31: movl 56(%4), %%eax\n" - "32: movl 60(%4), %%edx\n" -- "33: movl %%eax, 56(%3)\n" -- "34: movl %%edx, 60(%3)\n" -+ "33: "__copyuser_seg" movl %%eax, 56(%3)\n" -+ "34: "__copyuser_seg" movl %%edx, 60(%3)\n" - " addl $-64, %0\n" - " addl $64, %4\n" - " addl $64, %3\n" -@@ -191,10 +195,12 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size) - " shrl $2, %0\n" - " andl $3, %%eax\n" - " cld\n" -+ __COPYUSER_SET_ES - "99: rep; movsl\n" - "36: movl %%eax, %0\n" - "37: rep; movsb\n" - "100:\n" -+ __COPYUSER_RESTORE_ES - ".section .fixup,\"ax\"\n" - "101: lea 0(%%eax,%0,4),%0\n" - " jmp 100b\n" -@@ -247,46 +253,155 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size) - } - - static unsigned long -+__generic_copy_from_user_intel(void *to, const void __user *from, unsigned long size) -+{ -+ int d0, d1; -+ __asm__ __volatile__( -+ " .align 2,0x90\n" -+ "1: "__copyuser_seg" movl 32(%4), %%eax\n" -+ " cmpl $67, %0\n" -+ " jbe 3f\n" -+ "2: "__copyuser_seg" movl 64(%4), %%eax\n" -+ " .align 2,0x90\n" -+ "3: "__copyuser_seg" movl 0(%4), %%eax\n" -+ "4: "__copyuser_seg" movl 4(%4), %%edx\n" -+ "5: movl %%eax, 0(%3)\n" -+ "6: movl %%edx, 4(%3)\n" -+ "7: "__copyuser_seg" movl 8(%4), %%eax\n" -+ "8: "__copyuser_seg" movl 12(%4),%%edx\n" -+ "9: movl %%eax, 8(%3)\n" -+ "10: movl %%edx, 12(%3)\n" -+ "11: "__copyuser_seg" movl 16(%4), %%eax\n" -+ "12: "__copyuser_seg" movl 20(%4), %%edx\n" -+ "13: movl %%eax, 16(%3)\n" -+ "14: movl %%edx, 20(%3)\n" -+ "15: "__copyuser_seg" movl 24(%4), %%eax\n" -+ "16: "__copyuser_seg" movl 28(%4), %%edx\n" -+ "17: movl %%eax, 24(%3)\n" -+ "18: movl %%edx, 28(%3)\n" -+ "19: "__copyuser_seg" movl 32(%4), %%eax\n" -+ "20: "__copyuser_seg" movl 36(%4), %%edx\n" -+ "21: movl %%eax, 32(%3)\n" -+ "22: movl %%edx, 36(%3)\n" -+ "23: "__copyuser_seg" movl 40(%4), %%eax\n" -+ "24: "__copyuser_seg" movl 44(%4), %%edx\n" -+ "25: movl %%eax, 40(%3)\n" -+ "26: movl %%edx, 44(%3)\n" -+ "27: "__copyuser_seg" movl 48(%4), %%eax\n" -+ "28: "__copyuser_seg" movl 52(%4), %%edx\n" -+ "29: movl %%eax, 48(%3)\n" -+ "30: movl %%edx, 52(%3)\n" -+ "31: "__copyuser_seg" movl 56(%4), %%eax\n" -+ "32: "__copyuser_seg" movl 60(%4), %%edx\n" -+ "33: movl %%eax, 56(%3)\n" -+ "34: movl %%edx, 60(%3)\n" -+ " addl $-64, %0\n" -+ " addl $64, %4\n" -+ " addl $64, %3\n" -+ " cmpl $63, %0\n" -+ " ja 1b\n" -+ "35: movl %0, %%eax\n" -+ " shrl $2, %0\n" -+ " andl $3, %%eax\n" -+ " cld\n" -+ "99: rep; "__copyuser_seg" movsl\n" -+ "36: movl %%eax, %0\n" -+ "37: rep; "__copyuser_seg" movsb\n" -+ "100:\n" -+ ".section .fixup,\"ax\"\n" -+ "101: lea 0(%%eax,%0,4),%0\n" -+ " jmp 100b\n" -+ ".previous\n" -+ ".section __ex_table,\"a\"\n" -+ " .align 4\n" -+ " .long 1b,100b\n" -+ " .long 2b,100b\n" -+ " .long 3b,100b\n" -+ " .long 4b,100b\n" -+ " .long 5b,100b\n" -+ " .long 6b,100b\n" -+ " .long 7b,100b\n" -+ " .long 8b,100b\n" -+ " .long 9b,100b\n" -+ " .long 10b,100b\n" -+ " .long 11b,100b\n" -+ " .long 12b,100b\n" -+ " .long 13b,100b\n" -+ " .long 14b,100b\n" -+ " .long 15b,100b\n" -+ " .long 16b,100b\n" -+ " .long 17b,100b\n" -+ " .long 18b,100b\n" -+ " .long 19b,100b\n" -+ " .long 20b,100b\n" -+ " .long 21b,100b\n" -+ " .long 22b,100b\n" -+ " .long 23b,100b\n" -+ " .long 24b,100b\n" -+ " .long 25b,100b\n" -+ " .long 26b,100b\n" -+ " .long 27b,100b\n" -+ " .long 28b,100b\n" -+ " .long 29b,100b\n" -+ " .long 30b,100b\n" -+ " .long 31b,100b\n" -+ " .long 32b,100b\n" -+ " .long 33b,100b\n" -+ " .long 34b,100b\n" -+ " .long 35b,100b\n" -+ " .long 36b,100b\n" -+ " .long 37b,100b\n" -+ " .long 99b,101b\n" -+ ".previous" -+ : "=&c"(size), "=&D" (d0), "=&S" (d1) -+ : "1"(to), "2"(from), "0"(size) -+ : "eax", "edx", "memory"); -+ return size; -+} -+ -+static unsigned long -+__copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size) __size_overflow(3); -+static unsigned long - __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size) - { - int d0, d1; - __asm__ __volatile__( - " .align 2,0x90\n" -- "0: movl 32(%4), %%eax\n" -+ "0: "__copyuser_seg" movl 32(%4), %%eax\n" - " cmpl $67, %0\n" - " jbe 2f\n" -- "1: movl 64(%4), %%eax\n" -+ "1: "__copyuser_seg" movl 64(%4), %%eax\n" - " .align 2,0x90\n" -- "2: movl 0(%4), %%eax\n" -- "21: movl 4(%4), %%edx\n" -+ "2: "__copyuser_seg" movl 0(%4), %%eax\n" -+ "21: "__copyuser_seg" movl 4(%4), %%edx\n" - " movl %%eax, 0(%3)\n" - " movl %%edx, 4(%3)\n" -- "3: movl 8(%4), %%eax\n" -- "31: movl 12(%4),%%edx\n" -+ "3: "__copyuser_seg" movl 8(%4), %%eax\n" -+ "31: "__copyuser_seg" movl 12(%4),%%edx\n" - " movl %%eax, 8(%3)\n" - " movl %%edx, 12(%3)\n" -- "4: movl 16(%4), %%eax\n" -- "41: movl 20(%4), %%edx\n" -+ "4: "__copyuser_seg" movl 16(%4), %%eax\n" -+ "41: "__copyuser_seg" movl 20(%4), %%edx\n" - " movl %%eax, 16(%3)\n" - " movl %%edx, 20(%3)\n" -- "10: movl 24(%4), %%eax\n" -- "51: movl 28(%4), %%edx\n" -+ "10: "__copyuser_seg" movl 24(%4), %%eax\n" -+ "51: "__copyuser_seg" movl 28(%4), %%edx\n" - " movl %%eax, 24(%3)\n" - " movl %%edx, 28(%3)\n" -- "11: movl 32(%4), %%eax\n" -- "61: movl 36(%4), %%edx\n" -+ "11: "__copyuser_seg" movl 32(%4), %%eax\n" -+ "61: "__copyuser_seg" movl 36(%4), %%edx\n" - " movl %%eax, 32(%3)\n" - " movl %%edx, 36(%3)\n" -- "12: movl 40(%4), %%eax\n" -- "71: movl 44(%4), %%edx\n" -+ "12: "__copyuser_seg" movl 40(%4), %%eax\n" -+ "71: "__copyuser_seg" movl 44(%4), %%edx\n" - " movl %%eax, 40(%3)\n" - " movl %%edx, 44(%3)\n" -- "13: movl 48(%4), %%eax\n" -- "81: movl 52(%4), %%edx\n" -+ "13: "__copyuser_seg" movl 48(%4), %%eax\n" -+ "81: "__copyuser_seg" movl 52(%4), %%edx\n" - " movl %%eax, 48(%3)\n" - " movl %%edx, 52(%3)\n" -- "14: movl 56(%4), %%eax\n" -- "91: movl 60(%4), %%edx\n" -+ "14: "__copyuser_seg" movl 56(%4), %%eax\n" -+ "91: "__copyuser_seg" movl 60(%4), %%edx\n" - " movl %%eax, 56(%3)\n" - " movl %%edx, 60(%3)\n" - " addl $-64, %0\n" -@@ -298,9 +413,9 @@ __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size) - " shrl $2, %0\n" - " andl $3, %%eax\n" - " cld\n" -- "6: rep; movsl\n" -+ "6: rep; "__copyuser_seg" movsl\n" - " movl %%eax,%0\n" -- "7: rep; movsb\n" -+ "7: rep; "__copyuser_seg" movsb\n" - "8:\n" - ".section .fixup,\"ax\"\n" - "9: lea 0(%%eax,%0,4),%0\n" -@@ -347,47 +462,49 @@ __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size) - */ - - static unsigned long __copy_user_zeroing_intel_nocache(void *to, -+ const void __user *from, unsigned long size) __size_overflow(3); -+static unsigned long __copy_user_zeroing_intel_nocache(void *to, - const void __user *from, unsigned long size) - { - int d0, d1; - - __asm__ __volatile__( - " .align 2,0x90\n" -- "0: movl 32(%4), %%eax\n" -+ "0: "__copyuser_seg" movl 32(%4), %%eax\n" - " cmpl $67, %0\n" - " jbe 2f\n" -- "1: movl 64(%4), %%eax\n" -+ "1: "__copyuser_seg" movl 64(%4), %%eax\n" - " .align 2,0x90\n" -- "2: movl 0(%4), %%eax\n" -- "21: movl 4(%4), %%edx\n" -+ "2: "__copyuser_seg" movl 0(%4), %%eax\n" -+ "21: "__copyuser_seg" movl 4(%4), %%edx\n" - " movnti %%eax, 0(%3)\n" - " movnti %%edx, 4(%3)\n" -- "3: movl 8(%4), %%eax\n" -- "31: movl 12(%4),%%edx\n" -+ "3: "__copyuser_seg" movl 8(%4), %%eax\n" -+ "31: "__copyuser_seg" movl 12(%4),%%edx\n" - " movnti %%eax, 8(%3)\n" - " movnti %%edx, 12(%3)\n" -- "4: movl 16(%4), %%eax\n" -- "41: movl 20(%4), %%edx\n" -+ "4: "__copyuser_seg" movl 16(%4), %%eax\n" -+ "41: "__copyuser_seg" movl 20(%4), %%edx\n" - " movnti %%eax, 16(%3)\n" - " movnti %%edx, 20(%3)\n" -- "10: movl 24(%4), %%eax\n" -- "51: movl 28(%4), %%edx\n" -+ "10: "__copyuser_seg" movl 24(%4), %%eax\n" -+ "51: "__copyuser_seg" movl 28(%4), %%edx\n" - " movnti %%eax, 24(%3)\n" - " movnti %%edx, 28(%3)\n" -- "11: movl 32(%4), %%eax\n" -- "61: movl 36(%4), %%edx\n" -+ "11: "__copyuser_seg" movl 32(%4), %%eax\n" -+ "61: "__copyuser_seg" movl 36(%4), %%edx\n" - " movnti %%eax, 32(%3)\n" - " movnti %%edx, 36(%3)\n" -- "12: movl 40(%4), %%eax\n" -- "71: movl 44(%4), %%edx\n" -+ "12: "__copyuser_seg" movl 40(%4), %%eax\n" -+ "71: "__copyuser_seg" movl 44(%4), %%edx\n" - " movnti %%eax, 40(%3)\n" - " movnti %%edx, 44(%3)\n" -- "13: movl 48(%4), %%eax\n" -- "81: movl 52(%4), %%edx\n" -+ "13: "__copyuser_seg" movl 48(%4), %%eax\n" -+ "81: "__copyuser_seg" movl 52(%4), %%edx\n" - " movnti %%eax, 48(%3)\n" - " movnti %%edx, 52(%3)\n" -- "14: movl 56(%4), %%eax\n" -- "91: movl 60(%4), %%edx\n" -+ "14: "__copyuser_seg" movl 56(%4), %%eax\n" -+ "91: "__copyuser_seg" movl 60(%4), %%edx\n" - " movnti %%eax, 56(%3)\n" - " movnti %%edx, 60(%3)\n" - " addl $-64, %0\n" -@@ -400,9 +517,9 @@ static unsigned long __copy_user_zeroing_intel_nocache(void *to, - " shrl $2, %0\n" - " andl $3, %%eax\n" - " cld\n" -- "6: rep; movsl\n" -+ "6: rep; "__copyuser_seg" movsl\n" - " movl %%eax,%0\n" -- "7: rep; movsb\n" -+ "7: rep; "__copyuser_seg" movsb\n" - "8:\n" - ".section .fixup,\"ax\"\n" - "9: lea 0(%%eax,%0,4),%0\n" -@@ -444,47 +561,49 @@ static unsigned long __copy_user_zeroing_intel_nocache(void *to, - } - - static unsigned long __copy_user_intel_nocache(void *to, -+ const void __user *from, unsigned long size) __size_overflow(3); -+static unsigned long __copy_user_intel_nocache(void *to, - const void __user *from, unsigned long size) - { - int d0, d1; - - __asm__ __volatile__( - " .align 2,0x90\n" -- "0: movl 32(%4), %%eax\n" -+ "0: "__copyuser_seg" movl 32(%4), %%eax\n" - " cmpl $67, %0\n" - " jbe 2f\n" -- "1: movl 64(%4), %%eax\n" -+ "1: "__copyuser_seg" movl 64(%4), %%eax\n" - " .align 2,0x90\n" -- "2: movl 0(%4), %%eax\n" -- "21: movl 4(%4), %%edx\n" -+ "2: "__copyuser_seg" movl 0(%4), %%eax\n" -+ "21: "__copyuser_seg" movl 4(%4), %%edx\n" - " movnti %%eax, 0(%3)\n" - " movnti %%edx, 4(%3)\n" -- "3: movl 8(%4), %%eax\n" -- "31: movl 12(%4),%%edx\n" -+ "3: "__copyuser_seg" movl 8(%4), %%eax\n" -+ "31: "__copyuser_seg" movl 12(%4),%%edx\n" - " movnti %%eax, 8(%3)\n" - " movnti %%edx, 12(%3)\n" -- "4: movl 16(%4), %%eax\n" -- "41: movl 20(%4), %%edx\n" -+ "4: "__copyuser_seg" movl 16(%4), %%eax\n" -+ "41: "__copyuser_seg" movl 20(%4), %%edx\n" - " movnti %%eax, 16(%3)\n" - " movnti %%edx, 20(%3)\n" -- "10: movl 24(%4), %%eax\n" -- "51: movl 28(%4), %%edx\n" -+ "10: "__copyuser_seg" movl 24(%4), %%eax\n" -+ "51: "__copyuser_seg" movl 28(%4), %%edx\n" - " movnti %%eax, 24(%3)\n" - " movnti %%edx, 28(%3)\n" -- "11: movl 32(%4), %%eax\n" -- "61: movl 36(%4), %%edx\n" -+ "11: "__copyuser_seg" movl 32(%4), %%eax\n" -+ "61: "__copyuser_seg" movl 36(%4), %%edx\n" - " movnti %%eax, 32(%3)\n" - " movnti %%edx, 36(%3)\n" -- "12: movl 40(%4), %%eax\n" -- "71: movl 44(%4), %%edx\n" -+ "12: "__copyuser_seg" movl 40(%4), %%eax\n" -+ "71: "__copyuser_seg" movl 44(%4), %%edx\n" - " movnti %%eax, 40(%3)\n" - " movnti %%edx, 44(%3)\n" -- "13: movl 48(%4), %%eax\n" -- "81: movl 52(%4), %%edx\n" -+ "13: "__copyuser_seg" movl 48(%4), %%eax\n" -+ "81: "__copyuser_seg" movl 52(%4), %%edx\n" - " movnti %%eax, 48(%3)\n" - " movnti %%edx, 52(%3)\n" -- "14: movl 56(%4), %%eax\n" -- "91: movl 60(%4), %%edx\n" -+ "14: "__copyuser_seg" movl 56(%4), %%eax\n" -+ "91: "__copyuser_seg" movl 60(%4), %%edx\n" - " movnti %%eax, 56(%3)\n" - " movnti %%edx, 60(%3)\n" - " addl $-64, %0\n" -@@ -497,9 +616,9 @@ static unsigned long __copy_user_intel_nocache(void *to, - " shrl $2, %0\n" - " andl $3, %%eax\n" - " cld\n" -- "6: rep; movsl\n" -+ "6: rep; "__copyuser_seg" movsl\n" - " movl %%eax,%0\n" -- "7: rep; movsb\n" -+ "7: rep; "__copyuser_seg" movsb\n" - "8:\n" - ".section .fixup,\"ax\"\n" - "9: lea 0(%%eax,%0,4),%0\n" -@@ -542,32 +661,36 @@ static unsigned long __copy_user_intel_nocache(void *to, - */ - unsigned long __copy_user_zeroing_intel(void *to, const void __user *from, - unsigned long size); --unsigned long __copy_user_intel(void __user *to, const void *from, -+unsigned long __generic_copy_to_user_intel(void __user *to, const void *from, -+ unsigned long size); -+unsigned long __generic_copy_from_user_intel(void *to, const void __user *from, - unsigned long size); - unsigned long __copy_user_zeroing_intel_nocache(void *to, - const void __user *from, unsigned long size); - #endif /* CONFIG_X86_INTEL_USERCOPY */ - - /* Generic arbitrary sized copy. */ --#define __copy_user(to, from, size) \ -+#define __copy_user(to, from, size, prefix, set, restore) \ - do { \ - int __d0, __d1, __d2; \ - __asm__ __volatile__( \ -+ set \ - " cmp $7,%0\n" \ - " jbe 1f\n" \ - " movl %1,%0\n" \ - " negl %0\n" \ - " andl $7,%0\n" \ - " subl %0,%3\n" \ -- "4: rep; movsb\n" \ -+ "4: rep; "prefix"movsb\n" \ - " movl %3,%0\n" \ - " shrl $2,%0\n" \ - " andl $3,%3\n" \ - " .align 2,0x90\n" \ -- "0: rep; movsl\n" \ -+ "0: rep; "prefix"movsl\n" \ - " movl %3,%0\n" \ -- "1: rep; movsb\n" \ -+ "1: rep; "prefix"movsb\n" \ - "2:\n" \ -+ restore \ - ".section .fixup,\"ax\"\n" \ - "5: addl %3,%0\n" \ - " jmp 2b\n" \ -@@ -595,14 +718,14 @@ do { \ - " negl %0\n" \ - " andl $7,%0\n" \ - " subl %0,%3\n" \ -- "4: rep; movsb\n" \ -+ "4: rep; "__copyuser_seg"movsb\n" \ - " movl %3,%0\n" \ - " shrl $2,%0\n" \ - " andl $3,%3\n" \ - " .align 2,0x90\n" \ -- "0: rep; movsl\n" \ -+ "0: rep; "__copyuser_seg"movsl\n" \ - " movl %3,%0\n" \ -- "1: rep; movsb\n" \ -+ "1: rep; "__copyuser_seg"movsb\n" \ - "2:\n" \ - ".section .fixup,\"ax\"\n" \ - "5: addl %3,%0\n" \ -@@ -688,9 +811,9 @@ survive: - } - #endif - if (movsl_is_ok(to, from, n)) -- __copy_user(to, from, n); -+ __copy_user(to, from, n, "", __COPYUSER_SET_ES, __COPYUSER_RESTORE_ES); - else -- n = __copy_user_intel(to, from, n); -+ n = __generic_copy_to_user_intel(to, from, n); - return n; - } - EXPORT_SYMBOL(__copy_to_user_ll); -@@ -710,10 +833,9 @@ unsigned long __copy_from_user_ll_nozero(void *to, const void __user *from, - unsigned long n) - { - if (movsl_is_ok(to, from, n)) -- __copy_user(to, from, n); -+ __copy_user(to, from, n, __copyuser_seg, "", ""); - else -- n = __copy_user_intel((void __user *)to, -- (const void *)from, n); -+ n = __generic_copy_from_user_intel(to, from, n); - return n; - } - EXPORT_SYMBOL(__copy_from_user_ll_nozero); -@@ -740,65 +862,50 @@ unsigned long __copy_from_user_ll_nocache_nozero(void *to, const void __user *fr - if (n > 64 && cpu_has_xmm2) - n = __copy_user_intel_nocache(to, from, n); - else -- __copy_user(to, from, n); -+ __copy_user(to, from, n, __copyuser_seg, "", ""); - #else -- __copy_user(to, from, n); -+ __copy_user(to, from, n, __copyuser_seg, "", ""); - #endif - return n; - } - EXPORT_SYMBOL(__copy_from_user_ll_nocache_nozero); - --/** -- * copy_to_user: - Copy a block of data into user space. -- * @to: Destination address, in user space. -- * @from: Source address, in kernel space. -- * @n: Number of bytes to copy. -- * -- * Context: User context only. This function may sleep. -- * -- * Copy data from kernel space to user space. -- * -- * Returns number of bytes that could not be copied. -- * On success, this will be zero. -- */ --unsigned long --copy_to_user(void __user *to, const void *from, unsigned long n) --{ -- if (access_ok(VERIFY_WRITE, to, n)) -- n = __copy_to_user(to, from, n); -- return n; --} --EXPORT_SYMBOL(copy_to_user); -- --/** -- * copy_from_user: - Copy a block of data from user space. -- * @to: Destination address, in kernel space. -- * @from: Source address, in user space. -- * @n: Number of bytes to copy. -- * -- * Context: User context only. This function may sleep. -- * -- * Copy data from user space to kernel space. -- * -- * Returns number of bytes that could not be copied. -- * On success, this will be zero. -- * -- * If some data could not be copied, this function will pad the copied -- * data to the requested size using zero bytes. -- */ --unsigned long --_copy_from_user(void *to, const void __user *from, unsigned long n) --{ -- if (access_ok(VERIFY_READ, from, n)) -- n = __copy_from_user(to, from, n); -- else -- memset(to, 0, n); -- return n; --} --EXPORT_SYMBOL(_copy_from_user); -- - void copy_from_user_overflow(void) - { - WARN(1, "Buffer overflow detected!\n"); - } - EXPORT_SYMBOL(copy_from_user_overflow); -+ -+void copy_to_user_overflow(void) -+{ -+ WARN(1, "Buffer overflow detected!\n"); -+} -+EXPORT_SYMBOL(copy_to_user_overflow); -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+void __set_fs(mm_segment_t x) -+{ -+ switch (x.seg) { -+ case 0: -+ loadsegment(gs, 0); -+ break; -+ case TASK_SIZE_MAX: -+ loadsegment(gs, __USER_DS); -+ break; -+ case -1UL: -+ loadsegment(gs, __KERNEL_DS); -+ break; -+ default: -+ BUG(); -+ } -+ return; -+} -+EXPORT_SYMBOL(__set_fs); -+ -+void set_fs(mm_segment_t x) -+{ -+ current_thread_info()->addr_limit = x; -+ __set_fs(x); -+} -+EXPORT_SYMBOL(set_fs); -+#endif -diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c -index 0d0326f..6a6155b 100644 ---- a/arch/x86/lib/usercopy_64.c -+++ b/arch/x86/lib/usercopy_64.c -@@ -16,6 +16,12 @@ unsigned long __clear_user(void __user *addr, unsigned long size) - { - long __d0; - might_fault(); -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)addr < PAX_USER_SHADOW_BASE) -+ addr += PAX_USER_SHADOW_BASE; -+#endif -+ - /* no memory constraint because it doesn't change any memory gcc knows - about */ - asm volatile( -@@ -100,12 +106,20 @@ long strlen_user(const char __user *s) - } - EXPORT_SYMBOL(strlen_user); - --unsigned long copy_in_user(void __user *to, const void __user *from, unsigned len) -+unsigned long copy_in_user(void __user *to, const void __user *from, unsigned long len) - { -- if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len)) { -- return copy_user_generic((__force void *)to, (__force void *)from, len); -- } -- return len; -+ if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len)) { -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)to < PAX_USER_SHADOW_BASE) -+ to += PAX_USER_SHADOW_BASE; -+ if ((unsigned long)from < PAX_USER_SHADOW_BASE) -+ from += PAX_USER_SHADOW_BASE; -+#endif -+ -+ return copy_user_generic((void __force_kernel *)to, (void __force_kernel *)from, len); -+ } -+ return len; - } - EXPORT_SYMBOL(copy_in_user); - -@@ -115,7 +129,7 @@ EXPORT_SYMBOL(copy_in_user); - * it is not necessary to optimize tail handling. - */ - unsigned long --copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest) -+copy_user_handle_tail(char __user *to, char __user *from, unsigned long len, unsigned zerorest) - { - char c; - unsigned zero_len; -@@ -132,3 +146,15 @@ copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest) - break; - return len; - } -+ -+void copy_from_user_overflow(void) -+{ -+ WARN(1, "Buffer overflow detected!\n"); -+} -+EXPORT_SYMBOL(copy_from_user_overflow); -+ -+void copy_to_user_overflow(void) -+{ -+ WARN(1, "Buffer overflow detected!\n"); -+} -+EXPORT_SYMBOL(copy_to_user_overflow); -diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c -index 1fb85db..8b3540b 100644 ---- a/arch/x86/mm/extable.c -+++ b/arch/x86/mm/extable.c -@@ -8,7 +8,7 @@ int fixup_exception(struct pt_regs *regs) - const struct exception_table_entry *fixup; - - #ifdef CONFIG_PNPBIOS -- if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs))) { -+ if (unlikely(!v8086_mode(regs) && SEGMENT_IS_PNP_CODE(regs->cs))) { - extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp; - extern u32 pnp_bios_is_utter_crap; - pnp_bios_is_utter_crap = 1; -diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c -index 3ecfd1a..304d554 100644 ---- a/arch/x86/mm/fault.c -+++ b/arch/x86/mm/fault.c -@@ -13,11 +13,18 @@ - #include <linux/perf_event.h> /* perf_sw_event */ - #include <linux/hugetlb.h> /* hstate_index_to_shift */ - #include <linux/prefetch.h> /* prefetchw */ -+#include <linux/unistd.h> -+#include <linux/compiler.h> - - #include <asm/traps.h> /* dotraplinkage, ... */ - #include <asm/pgalloc.h> /* pgd_*(), ... */ - #include <asm/kmemcheck.h> /* kmemcheck_*(), ... */ - #include <asm/fixmap.h> /* VSYSCALL_START */ -+#include <asm/tlbflush.h> -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+#include <asm/stacktrace.h> -+#endif - - /* - * Page fault error code bits: -@@ -55,7 +62,7 @@ static inline int __kprobes notify_page_fault(struct pt_regs *regs) - int ret = 0; - - /* kprobe_running() needs smp_processor_id() */ -- if (kprobes_built_in() && !user_mode_vm(regs)) { -+ if (kprobes_built_in() && !user_mode(regs)) { - preempt_disable(); - if (kprobe_running() && kprobe_fault_handler(regs, 14)) - ret = 1; -@@ -116,7 +123,10 @@ check_prefetch_opcode(struct pt_regs *regs, unsigned char *instr, - return !instr_lo || (instr_lo>>1) == 1; - case 0x00: - /* Prefetch instruction is 0x0F0D or 0x0F18 */ -- if (probe_kernel_address(instr, opcode)) -+ if (user_mode(regs)) { -+ if (__copy_from_user_inatomic(&opcode, (unsigned char __force_user *)(instr), 1)) -+ return 0; -+ } else if (probe_kernel_address(instr, opcode)) - return 0; - - *prefetch = (instr_lo == 0xF) && -@@ -150,7 +160,10 @@ is_prefetch(struct pt_regs *regs, unsigned long error_code, unsigned long addr) - while (instr < max_instr) { - unsigned char opcode; - -- if (probe_kernel_address(instr, opcode)) -+ if (user_mode(regs)) { -+ if (__copy_from_user_inatomic(&opcode, (unsigned char __force_user *)(instr), 1)) -+ break; -+ } else if (probe_kernel_address(instr, opcode)) - break; - - instr++; -@@ -181,6 +194,34 @@ force_sig_info_fault(int si_signo, int si_code, unsigned long address, - force_sig_info(si_signo, &info, tsk); - } - -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+static bool pax_is_fetch_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address); -+#endif -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+static int pax_handle_fetch_fault(struct pt_regs *regs); -+#endif -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+static inline pmd_t * pax_get_pmd(struct mm_struct *mm, unsigned long address) -+{ -+ pgd_t *pgd; -+ pud_t *pud; -+ pmd_t *pmd; -+ -+ pgd = pgd_offset(mm, address); -+ if (!pgd_present(*pgd)) -+ return NULL; -+ pud = pud_offset(pgd, address); -+ if (!pud_present(*pud)) -+ return NULL; -+ pmd = pmd_offset(pud, address); -+ if (!pmd_present(*pmd)) -+ return NULL; -+ return pmd; -+} -+#endif -+ - DEFINE_SPINLOCK(pgd_lock); - LIST_HEAD(pgd_list); - -@@ -231,10 +272,22 @@ void vmalloc_sync_all(void) - for (address = VMALLOC_START & PMD_MASK; - address >= TASK_SIZE && address < FIXADDR_TOP; - address += PMD_SIZE) { -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ unsigned long cpu; -+#else - struct page *page; -+#endif - - spin_lock(&pgd_lock); -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ for (cpu = 0; cpu < nr_cpu_ids; ++cpu) { -+ pgd_t *pgd = get_cpu_pgd(cpu); -+ pmd_t *ret; -+#else - list_for_each_entry(page, &pgd_list, lru) { -+ pgd_t *pgd = page_address(page); - spinlock_t *pgt_lock; - pmd_t *ret; - -@@ -242,8 +295,13 @@ void vmalloc_sync_all(void) - pgt_lock = &pgd_page_get_mm(page)->page_table_lock; - - spin_lock(pgt_lock); -- ret = vmalloc_sync_one(page_address(page), address); -+#endif -+ -+ ret = vmalloc_sync_one(pgd, address); -+ -+#ifndef CONFIG_PAX_PER_CPU_PGD - spin_unlock(pgt_lock); -+#endif - - if (!ret) - break; -@@ -277,6 +335,11 @@ static noinline __kprobes int vmalloc_fault(unsigned long address) - * an interrupt in the middle of a task switch.. - */ - pgd_paddr = read_cr3(); -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ BUG_ON(__pa(get_cpu_pgd(smp_processor_id())) != (pgd_paddr & PHYSICAL_PAGE_MASK)); -+#endif -+ - pmd_k = vmalloc_sync_one(__va(pgd_paddr), address); - if (!pmd_k) - return -1; -@@ -372,7 +435,14 @@ static noinline __kprobes int vmalloc_fault(unsigned long address) - * happen within a race in page table update. In the later - * case just flush: - */ -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ BUG_ON(__pa(get_cpu_pgd(smp_processor_id())) != (read_cr3() & PHYSICAL_PAGE_MASK)); -+ pgd = pgd_offset_cpu(smp_processor_id(), address); -+#else - pgd = pgd_offset(current->active_mm, address); -+#endif -+ - pgd_ref = pgd_offset_k(address); - if (pgd_none(*pgd_ref)) - return -1; -@@ -540,7 +610,7 @@ static int is_errata93(struct pt_regs *regs, unsigned long address) - static int is_errata100(struct pt_regs *regs, unsigned long address) - { - #ifdef CONFIG_X86_64 -- if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) && (address >> 32)) -+ if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) && (address >> 32)) - return 1; - #endif - return 0; -@@ -567,7 +637,7 @@ static int is_f00f_bug(struct pt_regs *regs, unsigned long address) - } - - static const char nx_warning[] = KERN_CRIT --"kernel tried to execute NX-protected page - exploit attempt? (uid: %d)\n"; -+"kernel tried to execute NX-protected page - exploit attempt? (uid: %d, task: %s, pid: %d)\n"; - - static void - show_fault_oops(struct pt_regs *regs, unsigned long error_code, -@@ -576,15 +646,26 @@ show_fault_oops(struct pt_regs *regs, unsigned long error_code, - if (!oops_may_print()) - return; - -- if (error_code & PF_INSTR) { -+ if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR)) { - unsigned int level; - - pte_t *pte = lookup_address(address, &level); - - if (pte && pte_present(*pte) && !pte_exec(*pte)) -- printk(nx_warning, current_uid()); -+ printk(nx_warning, current_uid(), current->comm, task_pid_nr(current)); - } - -+#ifdef CONFIG_PAX_KERNEXEC -+ if (init_mm.start_code <= address && address < init_mm.end_code) { -+ if (current->signal->curr_ip) -+ printk(KERN_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", -+ &current->signal->curr_ip, current->comm, task_pid_nr(current), current_uid(), current_euid()); -+ else -+ printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", -+ current->comm, task_pid_nr(current), current_uid(), current_euid()); -+ } -+#endif -+ - printk(KERN_ALERT "BUG: unable to handle kernel "); - if (address < PAGE_SIZE) - printk(KERN_CONT "NULL pointer dereference"); -@@ -748,6 +829,21 @@ __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code, - } - #endif - -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ if (pax_is_fetch_fault(regs, error_code, address)) { -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ switch (pax_handle_fetch_fault(regs)) { -+ case 2: -+ return; -+ } -+#endif -+ -+ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ - if (unlikely(show_unhandled_signals)) - show_signal_msg(regs, error_code, address, tsk); - -@@ -844,7 +940,7 @@ do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address, - if (fault & (VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE)) { - printk(KERN_ERR - "MCE: Killing %s:%d due to hardware memory corruption fault at %lx\n", -- tsk->comm, tsk->pid, address); -+ tsk->comm, task_pid_nr(tsk), address); - code = BUS_MCEERR_AR; - } - #endif -@@ -900,6 +996,99 @@ static int spurious_fault_check(unsigned long error_code, pte_t *pte) - return 1; - } - -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) -+static int pax_handle_pageexec_fault(struct pt_regs *regs, struct mm_struct *mm, unsigned long address, unsigned long error_code) -+{ -+ pte_t *pte; -+ pmd_t *pmd; -+ spinlock_t *ptl; -+ unsigned char pte_mask; -+ -+ if ((__supported_pte_mask & _PAGE_NX) || (error_code & (PF_PROT|PF_USER)) != (PF_PROT|PF_USER) || v8086_mode(regs) || -+ !(mm->pax_flags & MF_PAX_PAGEEXEC)) -+ return 0; -+ -+ /* PaX: it's our fault, let's handle it if we can */ -+ -+ /* PaX: take a look at read faults before acquiring any locks */ -+ if (unlikely(!(error_code & PF_WRITE) && (regs->ip == address))) { -+ /* instruction fetch attempt from a protected page in user mode */ -+ up_read(&mm->mmap_sem); -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ switch (pax_handle_fetch_fault(regs)) { -+ case 2: -+ return 1; -+ } -+#endif -+ -+ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp); -+ do_group_exit(SIGKILL); -+ } -+ -+ pmd = pax_get_pmd(mm, address); -+ if (unlikely(!pmd)) -+ return 0; -+ -+ pte = pte_offset_map_lock(mm, pmd, address, &ptl); -+ if (unlikely(!(pte_val(*pte) & _PAGE_PRESENT) || pte_user(*pte))) { -+ pte_unmap_unlock(pte, ptl); -+ return 0; -+ } -+ -+ if (unlikely((error_code & PF_WRITE) && !pte_write(*pte))) { -+ /* write attempt to a protected page in user mode */ -+ pte_unmap_unlock(pte, ptl); -+ return 0; -+ } -+ -+#ifdef CONFIG_SMP -+ if (likely(address > get_limit(regs->cs) && cpu_isset(smp_processor_id(), mm->context.cpu_user_cs_mask))) -+#else -+ if (likely(address > get_limit(regs->cs))) -+#endif -+ { -+ set_pte(pte, pte_mkread(*pte)); -+ __flush_tlb_one(address); -+ pte_unmap_unlock(pte, ptl); -+ up_read(&mm->mmap_sem); -+ return 1; -+ } -+ -+ pte_mask = _PAGE_ACCESSED | _PAGE_USER | ((error_code & PF_WRITE) << (_PAGE_BIT_DIRTY-1)); -+ -+ /* -+ * PaX: fill DTLB with user rights and retry -+ */ -+ __asm__ __volatile__ ( -+ "orb %2,(%1)\n" -+#if defined(CONFIG_M586) || defined(CONFIG_M586TSC) -+/* -+ * PaX: let this uncommented 'invlpg' remind us on the behaviour of Intel's -+ * (and AMD's) TLBs. namely, they do not cache PTEs that would raise *any* -+ * page fault when examined during a TLB load attempt. this is true not only -+ * for PTEs holding a non-present entry but also present entries that will -+ * raise a page fault (such as those set up by PaX, or the copy-on-write -+ * mechanism). in effect it means that we do *not* need to flush the TLBs -+ * for our target pages since their PTEs are simply not in the TLBs at all. -+ -+ * the best thing in omitting it is that we gain around 15-20% speed in the -+ * fast path of the page fault handler and can get rid of tracing since we -+ * can no longer flush unintended entries. -+ */ -+ "invlpg (%0)\n" -+#endif -+ __copyuser_seg"testb $0,(%0)\n" -+ "xorb %3,(%1)\n" -+ : -+ : "r" (address), "r" (pte), "q" (pte_mask), "i" (_PAGE_USER) -+ : "memory", "cc"); -+ pte_unmap_unlock(pte, ptl); -+ up_read(&mm->mmap_sem); -+ return 1; -+} -+#endif -+ - /* - * Handle a spurious fault caused by a stale TLB entry. - * -@@ -972,6 +1161,9 @@ int show_unhandled_signals = 1; - static inline int - access_error(unsigned long error_code, struct vm_area_struct *vma) - { -+ if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR) && !(vma->vm_flags & VM_EXEC)) -+ return 1; -+ - if (error_code & PF_WRITE) { - /* write, present and write, not present: */ - if (unlikely(!(vma->vm_flags & VM_WRITE))) -@@ -1005,18 +1197,33 @@ do_page_fault(struct pt_regs *regs, unsigned long error_code) - { - struct vm_area_struct *vma; - struct task_struct *tsk; -- unsigned long address; - struct mm_struct *mm; - int fault; - int write = error_code & PF_WRITE; - unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE | - (write ? FAULT_FLAG_WRITE : 0); - -- tsk = current; -- mm = tsk->mm; -- - /* Get the faulting address: */ -- address = read_cr2(); -+ unsigned long address = read_cr2(); -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ if (!user_mode(regs) && address < 2 * PAX_USER_SHADOW_BASE) { -+ if (!search_exception_tables(regs->ip)) { -+ printk(KERN_ERR "PAX: please report this to pageexec(a)freemail.hu\n"); -+ bad_area_nosemaphore(regs, error_code, address); -+ return; -+ } -+ if (address < PAX_USER_SHADOW_BASE) { -+ printk(KERN_ERR "PAX: please report this to pageexec(a)freemail.hu\n"); -+ printk(KERN_ERR "PAX: faulting IP: %pS\n", (void *)regs->ip); -+ show_trace_log_lvl(NULL, NULL, (void *)regs->sp, regs->bp, KERN_ERR); -+ } else -+ address -= PAX_USER_SHADOW_BASE; -+ } -+#endif -+ -+ tsk = current; -+ mm = tsk->mm; - - /* - * Detect and handle instructions that would cause a page fault for -@@ -1077,7 +1284,7 @@ do_page_fault(struct pt_regs *regs, unsigned long error_code) - * User-mode registers count as a user access even for any - * potential system fault or CPU buglet: - */ -- if (user_mode_vm(regs)) { -+ if (user_mode(regs)) { - local_irq_enable(); - error_code |= PF_USER; - } else { -@@ -1132,6 +1339,11 @@ retry: - might_sleep(); - } - -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) -+ if (pax_handle_pageexec_fault(regs, mm, address, error_code)) -+ return; -+#endif -+ - vma = find_vma(mm, address); - if (unlikely(!vma)) { - bad_area(regs, error_code, address); -@@ -1143,18 +1355,24 @@ retry: - bad_area(regs, error_code, address); - return; - } -- if (error_code & PF_USER) { -- /* -- * Accessing the stack below %sp is always a bug. -- * The large cushion allows instructions like enter -- * and pusha to work. ("enter $65535, $31" pushes -- * 32 pointers and then decrements %sp by 65535.) -- */ -- if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < regs->sp)) { -- bad_area(regs, error_code, address); -- return; -- } -+ /* -+ * Accessing the stack below %sp is always a bug. -+ * The large cushion allows instructions like enter -+ * and pusha to work. ("enter $65535, $31" pushes -+ * 32 pointers and then decrements %sp by 65535.) -+ */ -+ if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < task_pt_regs(tsk)->sp)) { -+ bad_area(regs, error_code, address); -+ return; - } -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (unlikely((mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end - SEGMEXEC_TASK_SIZE - 1 < address - SEGMEXEC_TASK_SIZE - 1)) { -+ bad_area(regs, error_code, address); -+ return; -+ } -+#endif -+ - if (unlikely(expand_stack(vma, address))) { - bad_area(regs, error_code, address); - return; -@@ -1209,3 +1427,292 @@ good_area: - - up_read(&mm->mmap_sem); - } -+ -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+static bool pax_is_fetch_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address) -+{ -+ struct mm_struct *mm = current->mm; -+ unsigned long ip = regs->ip; -+ -+ if (v8086_mode(regs)) -+ ip = ((regs->cs & 0xffff) << 4) + (ip & 0xffff); -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (mm->pax_flags & MF_PAX_PAGEEXEC) { -+ if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR)) -+ return true; -+ if (!(error_code & (PF_PROT | PF_WRITE)) && ip == address) -+ return true; -+ return false; -+ } -+#endif -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) { -+ if (!(error_code & (PF_PROT | PF_WRITE)) && (ip + SEGMEXEC_TASK_SIZE == address)) -+ return true; -+ return false; -+ } -+#endif -+ -+ return false; -+} -+#endif -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+static int pax_handle_fetch_fault_32(struct pt_regs *regs) -+{ -+ int err; -+ -+ do { /* PaX: libffi trampoline emulation */ -+ unsigned char mov, jmp; -+ unsigned int addr1, addr2; -+ -+#ifdef CONFIG_X86_64 -+ if ((regs->ip + 9) >> 32) -+ break; -+#endif -+ -+ err = get_user(mov, (unsigned char __user *)regs->ip); -+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1)); -+ err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5)); -+ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6)); -+ -+ if (err) -+ break; -+ -+ if (mov == 0xB8 && jmp == 0xE9) { -+ regs->ax = addr1; -+ regs->ip = (unsigned int)(regs->ip + addr2 + 10); -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: gcc trampoline emulation #1 */ -+ unsigned char mov1, mov2; -+ unsigned short jmp; -+ unsigned int addr1, addr2; -+ -+#ifdef CONFIG_X86_64 -+ if ((regs->ip + 11) >> 32) -+ break; -+#endif -+ -+ err = get_user(mov1, (unsigned char __user *)regs->ip); -+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1)); -+ err |= get_user(mov2, (unsigned char __user *)(regs->ip + 5)); -+ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6)); -+ err |= get_user(jmp, (unsigned short __user *)(regs->ip + 10)); -+ -+ if (err) -+ break; -+ -+ if (mov1 == 0xB9 && mov2 == 0xB8 && jmp == 0xE0FF) { -+ regs->cx = addr1; -+ regs->ax = addr2; -+ regs->ip = addr2; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: gcc trampoline emulation #2 */ -+ unsigned char mov, jmp; -+ unsigned int addr1, addr2; -+ -+#ifdef CONFIG_X86_64 -+ if ((regs->ip + 9) >> 32) -+ break; -+#endif -+ -+ err = get_user(mov, (unsigned char __user *)regs->ip); -+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1)); -+ err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5)); -+ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6)); -+ -+ if (err) -+ break; -+ -+ if (mov == 0xB9 && jmp == 0xE9) { -+ regs->cx = addr1; -+ regs->ip = (unsigned int)(regs->ip + addr2 + 10); -+ return 2; -+ } -+ } while (0); -+ -+ return 1; /* PaX in action */ -+} -+ -+#ifdef CONFIG_X86_64 -+static int pax_handle_fetch_fault_64(struct pt_regs *regs) -+{ -+ int err; -+ -+ do { /* PaX: libffi trampoline emulation */ -+ unsigned short mov1, mov2, jmp1; -+ unsigned char stcclc, jmp2; -+ unsigned long addr1, addr2; -+ -+ err = get_user(mov1, (unsigned short __user *)regs->ip); -+ err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2)); -+ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10)); -+ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12)); -+ err |= get_user(stcclc, (unsigned char __user *)(regs->ip + 20)); -+ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 21)); -+ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 23)); -+ -+ if (err) -+ break; -+ -+ if (mov1 == 0xBB49 && mov2 == 0xBA49 && (stcclc == 0xF8 || stcclc == 0xF9) && jmp1 == 0xFF49 && jmp2 == 0xE3) { -+ regs->r11 = addr1; -+ regs->r10 = addr2; -+ if (stcclc == 0xF8) -+ regs->flags &= ~X86_EFLAGS_CF; -+ else -+ regs->flags |= X86_EFLAGS_CF; -+ regs->ip = addr1; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: gcc trampoline emulation #1 */ -+ unsigned short mov1, mov2, jmp1; -+ unsigned char jmp2; -+ unsigned int addr1; -+ unsigned long addr2; -+ -+ err = get_user(mov1, (unsigned short __user *)regs->ip); -+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 2)); -+ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 6)); -+ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 8)); -+ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 16)); -+ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 18)); -+ -+ if (err) -+ break; -+ -+ if (mov1 == 0xBB41 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) { -+ regs->r11 = addr1; -+ regs->r10 = addr2; -+ regs->ip = addr1; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: gcc trampoline emulation #2 */ -+ unsigned short mov1, mov2, jmp1; -+ unsigned char jmp2; -+ unsigned long addr1, addr2; -+ -+ err = get_user(mov1, (unsigned short __user *)regs->ip); -+ err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2)); -+ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10)); -+ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12)); -+ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 20)); -+ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 22)); -+ -+ if (err) -+ break; -+ -+ if (mov1 == 0xBB49 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) { -+ regs->r11 = addr1; -+ regs->r10 = addr2; -+ regs->ip = addr1; -+ return 2; -+ } -+ } while (0); -+ -+ return 1; /* PaX in action */ -+} -+#endif -+ -+/* -+ * PaX: decide what to do with offenders (regs->ip = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when gcc trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ if (v8086_mode(regs)) -+ return 1; -+ -+ if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP)) -+ return 1; -+ -+#ifdef CONFIG_X86_32 -+ return pax_handle_fetch_fault_32(regs); -+#else -+ if (regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) -+ return pax_handle_fetch_fault_32(regs); -+ else -+ return pax_handle_fetch_fault_64(regs); -+#endif -+} -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) -+{ -+ long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 20; i++) { -+ unsigned char c; -+ if (get_user(c, (unsigned char __force_user *)pc+i)) -+ printk(KERN_CONT "?? "); -+ else -+ printk(KERN_CONT "%02x ", c); -+ } -+ printk("\n"); -+ -+ printk(KERN_ERR "PAX: bytes at SP-%lu: ", (unsigned long)sizeof(long)); -+ for (i = -1; i < 80 / (long)sizeof(long); i++) { -+ unsigned long c; -+ if (get_user(c, (unsigned long __force_user *)sp+i)) { -+#ifdef CONFIG_X86_32 -+ printk(KERN_CONT "???????? "); -+#else -+ if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))) -+ printk(KERN_CONT "???????? ???????? "); -+ else -+ printk(KERN_CONT "???????????????? "); -+#endif -+ } else { -+#ifdef CONFIG_X86_64 -+ if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))) { -+ printk(KERN_CONT "%08x ", (unsigned int)c); -+ printk(KERN_CONT "%08x ", (unsigned int)(c >> 32)); -+ } else -+#endif -+ printk(KERN_CONT "%0*lx ", 2 * (int)sizeof(long), c); -+ } -+ } -+ printk("\n"); -+} -+#endif -+ -+/** -+ * probe_kernel_write(): safely attempt to write to a location -+ * @dst: address to write to -+ * @src: pointer to the data that shall be written -+ * @size: size of the data chunk -+ * -+ * Safely write to address @dst from the buffer at @src. If a kernel fault -+ * happens, handle that and return -EFAULT. -+ */ -+long notrace probe_kernel_write(void *dst, const void *src, size_t size) -+{ -+ long ret; -+ mm_segment_t old_fs = get_fs(); -+ -+ set_fs(KERNEL_DS); -+ pagefault_disable(); -+ pax_open_kernel(); -+ ret = __copy_to_user_inatomic((void __force_user *)dst, src, size); -+ pax_close_kernel(); -+ pagefault_enable(); -+ set_fs(old_fs); -+ -+ return ret ? -EFAULT : 0; -+} -diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c -index dd74e46..7d26398 100644 ---- a/arch/x86/mm/gup.c -+++ b/arch/x86/mm/gup.c -@@ -255,7 +255,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write, - addr = start; - len = (unsigned long) nr_pages << PAGE_SHIFT; - end = start + len; -- if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ, -+ if (unlikely(!__access_ok(write ? VERIFY_WRITE : VERIFY_READ, - (void __user *)start, len))) - return 0; - -diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c -index 6f31ee5..8ee4164 100644 ---- a/arch/x86/mm/highmem_32.c -+++ b/arch/x86/mm/highmem_32.c -@@ -44,7 +44,11 @@ void *kmap_atomic_prot(struct page *page, pgprot_t prot) - idx = type + KM_TYPE_NR*smp_processor_id(); - vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); - BUG_ON(!pte_none(*(kmap_pte-idx))); -+ -+ pax_open_kernel(); - set_pte(kmap_pte-idx, mk_pte(page, prot)); -+ pax_close_kernel(); -+ - arch_flush_lazy_mmu_mode(); - - return (void *)vaddr; -diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c -index f6679a7..8f795a3 100644 ---- a/arch/x86/mm/hugetlbpage.c -+++ b/arch/x86/mm/hugetlbpage.c -@@ -266,13 +266,20 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file, - struct hstate *h = hstate_file(file); - struct mm_struct *mm = current->mm; - struct vm_area_struct *vma; -- unsigned long start_addr; -+ unsigned long start_addr, pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ pax_task_size -= PAGE_SIZE; - - if (len > mm->cached_hole_size) { -- start_addr = mm->free_area_cache; -+ start_addr = mm->free_area_cache; - } else { -- start_addr = TASK_UNMAPPED_BASE; -- mm->cached_hole_size = 0; -+ start_addr = mm->mmap_base; -+ mm->cached_hole_size = 0; - } - - full_search: -@@ -280,26 +287,27 @@ full_search: - - for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { - /* At this point: (!vma || addr < vma->vm_end). */ -- if (TASK_SIZE - len < addr) { -+ if (pax_task_size - len < addr) { - /* - * Start a new search - just in case we missed - * some holes. - */ -- if (start_addr != TASK_UNMAPPED_BASE) { -- start_addr = TASK_UNMAPPED_BASE; -+ if (start_addr != mm->mmap_base) { -+ start_addr = mm->mmap_base; - mm->cached_hole_size = 0; - goto full_search; - } - return -ENOMEM; - } -- if (!vma || addr + len <= vma->vm_start) { -- mm->free_area_cache = addr + len; -- return addr; -- } -+ if (check_heap_stack_gap(vma, addr, len)) -+ break; - if (addr + mm->cached_hole_size < vma->vm_start) - mm->cached_hole_size = vma->vm_start - addr; - addr = ALIGN(vma->vm_end, huge_page_size(h)); - } -+ -+ mm->free_area_cache = addr + len; -+ return addr; - } - - static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file, -@@ -310,9 +318,8 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file, - struct mm_struct *mm = current->mm; - struct vm_area_struct *vma; - unsigned long base = mm->mmap_base; -- unsigned long addr = addr0; -+ unsigned long addr; - unsigned long largest_hole = mm->cached_hole_size; -- unsigned long start_addr; - - /* don't allow allocations above current base */ - if (mm->free_area_cache > base) -@@ -322,16 +329,15 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file, - largest_hole = 0; - mm->free_area_cache = base; - } --try_again: -- start_addr = mm->free_area_cache; - - /* make sure it can fit in the remaining address space */ - if (mm->free_area_cache < len) - goto fail; - - /* either no address requested or can't fit in requested address hole */ -- addr = (mm->free_area_cache - len) & huge_page_mask(h); -+ addr = mm->free_area_cache - len; - do { -+ addr &= huge_page_mask(h); - /* - * Lookup failure means no vma is above this address, - * i.e. return with success: -@@ -340,10 +346,10 @@ try_again: - if (!vma) - return addr; - -- if (addr + len <= vma->vm_start) { -+ if (check_heap_stack_gap(vma, addr, len)) { - /* remember the address as a hint for next time */ -- mm->cached_hole_size = largest_hole; -- return (mm->free_area_cache = addr); -+ mm->cached_hole_size = largest_hole; -+ return (mm->free_area_cache = addr); - } else if (mm->free_area_cache == vma->vm_end) { - /* pull free_area_cache down to the first hole */ - mm->free_area_cache = vma->vm_start; -@@ -352,29 +358,34 @@ try_again: - - /* remember the largest hole we saw so far */ - if (addr + largest_hole < vma->vm_start) -- largest_hole = vma->vm_start - addr; -+ largest_hole = vma->vm_start - addr; - - /* try just below the current vma->vm_start */ -- addr = (vma->vm_start - len) & huge_page_mask(h); -- } while (len <= vma->vm_start); -+ addr = skip_heap_stack_gap(vma, len); -+ } while (!IS_ERR_VALUE(addr)); - - fail: - /* -- * if hint left us with no space for the requested -- * mapping then try again: -- */ -- if (start_addr != base) { -- mm->free_area_cache = base; -- largest_hole = 0; -- goto try_again; -- } -- /* - * A failed mmap() very likely causes application failure, - * so fall back to the bottom-up function here. This scenario - * can happen with large stack limits and large mmap() - * allocations. - */ -- mm->free_area_cache = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ mm->mmap_base = SEGMEXEC_TASK_UNMAPPED_BASE; -+ else -+#endif -+ -+ mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ -+ mm->free_area_cache = mm->mmap_base; - mm->cached_hole_size = ~0UL; - addr = hugetlb_get_unmapped_area_bottomup(file, addr0, - len, pgoff, flags); -@@ -382,6 +393,7 @@ fail: - /* - * Restore the topdown base: - */ -+ mm->mmap_base = base; - mm->free_area_cache = base; - mm->cached_hole_size = ~0UL; - -@@ -395,10 +407,19 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr, - struct hstate *h = hstate_file(file); - struct mm_struct *mm = current->mm; - struct vm_area_struct *vma; -+ unsigned long pax_task_size = TASK_SIZE; - - if (len & ~huge_page_mask(h)) - return -EINVAL; -- if (len > TASK_SIZE) -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ pax_task_size -= PAGE_SIZE; -+ -+ if (len > pax_task_size) - return -ENOMEM; - - if (flags & MAP_FIXED) { -@@ -410,8 +431,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr, - if (addr) { - addr = ALIGN(addr, huge_page_size(h)); - vma = find_vma(mm, addr); -- if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ if (pax_task_size - len >= addr && check_heap_stack_gap(vma, addr, len)) - return addr; - } - if (mm->get_unmapped_area == arch_get_unmapped_area) -diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c -index 4f0cec7..00976ce 100644 ---- a/arch/x86/mm/init.c -+++ b/arch/x86/mm/init.c -@@ -16,6 +16,8 @@ - #include <asm/tlb.h> - #include <asm/proto.h> - #include <asm/dma.h> /* for MAX_DMA_PFN */ -+#include <asm/desc.h> -+#include <asm/bios_ebda.h> - - unsigned long __initdata pgt_buf_start; - unsigned long __meminitdata pgt_buf_end; -@@ -32,7 +34,7 @@ int direct_gbpages - static void __init find_early_table_space(unsigned long end, int use_pse, - int use_gbpages) - { -- unsigned long puds, pmds, ptes, tables, start = 0, good_end = end; -+ unsigned long puds, pmds, ptes, tables, start = 0x100000, good_end = end; - phys_addr_t base; - - puds = (end + PUD_SIZE - 1) >> PUD_SHIFT; -@@ -311,10 +313,37 @@ unsigned long __init_refok init_memory_mapping(unsigned long start, - * Access has to be given to non-kernel-ram areas as well, these contain the PCI - * mmio resources as well as potential bios/acpi data regions. - */ -+ -+#ifdef CONFIG_GRKERNSEC_KMEM -+static unsigned int ebda_start __read_only; -+static unsigned int ebda_end __read_only; -+#endif -+ - int devmem_is_allowed(unsigned long pagenr) - { -+#ifdef CONFIG_GRKERNSEC_KMEM -+ /* allow BDA */ -+ if (!pagenr) -+ return 1; -+ /* allow EBDA */ -+ if (pagenr >= ebda_start && pagenr < ebda_end) -+ return 1; -+#else -+ if (!pagenr) -+ return 1; -+#ifdef CONFIG_VM86 -+ if (pagenr < (ISA_START_ADDRESS >> PAGE_SHIFT)) -+ return 1; -+#endif -+#endif -+ -+ if ((ISA_START_ADDRESS >> PAGE_SHIFT) <= pagenr && pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT)) -+ return 1; -+#ifdef CONFIG_GRKERNSEC_KMEM -+ /* throw out everything else below 1MB */ - if (pagenr <= 256) -- return 1; -+ return 0; -+#endif - if (iomem_is_exclusive(pagenr << PAGE_SHIFT)) - return 0; - if (!page_is_ram(pagenr)) -@@ -371,8 +400,116 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end) - #endif - } - -+#ifdef CONFIG_GRKERNSEC_KMEM -+static inline void gr_init_ebda(void) -+{ -+ unsigned int ebda_addr; -+ unsigned int ebda_size = 0; -+ -+ ebda_addr = get_bios_ebda(); -+ if (ebda_addr) { -+ ebda_size = *(unsigned char *)phys_to_virt(ebda_addr); -+ ebda_size <<= 10; -+ } -+ if (ebda_addr && ebda_size) { -+ ebda_start = ebda_addr >> PAGE_SHIFT; -+ ebda_end = min((unsigned int)PAGE_ALIGN(ebda_addr + ebda_size), (unsigned int)0xa0000) >> PAGE_SHIFT; -+ } else { -+ ebda_start = 0x9f000 >> PAGE_SHIFT; -+ ebda_end = 0xa0000 >> PAGE_SHIFT; -+ } -+} -+#else -+static inline void gr_init_ebda(void) { } -+#endif -+ - void free_initmem(void) - { -+#ifdef CONFIG_PAX_KERNEXEC -+#ifdef CONFIG_X86_32 -+ /* PaX: limit KERNEL_CS to actual size */ -+ unsigned long addr, limit; -+ struct desc_struct d; -+ int cpu; -+#else -+ pgd_t *pgd; -+ pud_t *pud; -+ pmd_t *pmd; -+ unsigned long addr, end; -+#endif -+#endif -+ -+ gr_init_ebda(); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+#ifdef CONFIG_X86_32 -+ limit = paravirt_enabled() ? ktva_ktla(0xffffffff) : (unsigned long)&_etext; -+ limit = (limit - 1UL) >> PAGE_SHIFT; -+ -+ memset(__LOAD_PHYSICAL_ADDR + PAGE_OFFSET, POISON_FREE_INITMEM, PAGE_SIZE); -+ for (cpu = 0; cpu < nr_cpu_ids; cpu++) { -+ pack_descriptor(&d, get_desc_base(&get_cpu_gdt_table(cpu)[GDT_ENTRY_KERNEL_CS]), limit, 0x9B, 0xC); -+ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEL_CS, &d, DESCTYPE_S); -+ } -+ -+ /* PaX: make KERNEL_CS read-only */ -+ addr = PFN_ALIGN(ktla_ktva((unsigned long)&_text)); -+ if (!paravirt_enabled()) -+ set_memory_ro(addr, (PFN_ALIGN(_sdata) - addr) >> PAGE_SHIFT); -+/* -+ for (addr = ktla_ktva((unsigned long)&_text); addr < (unsigned long)&_sdata; addr += PMD_SIZE) { -+ pgd = pgd_offset_k(addr); -+ pud = pud_offset(pgd, addr); -+ pmd = pmd_offset(pud, addr); -+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW)); -+ } -+*/ -+#ifdef CONFIG_X86_PAE -+ set_memory_nx(PFN_ALIGN(__init_begin), (PFN_ALIGN(__init_end) - PFN_ALIGN(__init_begin)) >> PAGE_SHIFT); -+/* -+ for (addr = (unsigned long)&__init_begin; addr < (unsigned long)&__init_end; addr += PMD_SIZE) { -+ pgd = pgd_offset_k(addr); -+ pud = pud_offset(pgd, addr); -+ pmd = pmd_offset(pud, addr); -+ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask))); -+ } -+*/ -+#endif -+ -+#ifdef CONFIG_MODULES -+ set_memory_4k((unsigned long)MODULES_EXEC_VADDR, (MODULES_EXEC_END - MODULES_EXEC_VADDR) >> PAGE_SHIFT); -+#endif -+ -+#else -+ /* PaX: make kernel code/rodata read-only, rest non-executable */ -+ for (addr = __START_KERNEL_map; addr < __START_KERNEL_map + KERNEL_IMAGE_SIZE; addr += PMD_SIZE) { -+ pgd = pgd_offset_k(addr); -+ pud = pud_offset(pgd, addr); -+ pmd = pmd_offset(pud, addr); -+ if (!pmd_present(*pmd)) -+ continue; -+ if ((unsigned long)_text <= addr && addr < (unsigned long)_sdata) -+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW)); -+ else -+ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask))); -+ } -+ -+ addr = (unsigned long)__va(__pa(__START_KERNEL_map)); -+ end = addr + KERNEL_IMAGE_SIZE; -+ for (; addr < end; addr += PMD_SIZE) { -+ pgd = pgd_offset_k(addr); -+ pud = pud_offset(pgd, addr); -+ pmd = pmd_offset(pud, addr); -+ if (!pmd_present(*pmd)) -+ continue; -+ if ((unsigned long)__va(__pa(_text)) <= addr && addr < (unsigned long)__va(__pa(_sdata))) -+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW)); -+ } -+#endif -+ -+ flush_tlb_all(); -+#endif -+ - free_init_pages("unused kernel memory", - (unsigned long)(&__init_begin), - (unsigned long)(&__init_end)); -diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c -index 575d86f..4987469 100644 ---- a/arch/x86/mm/init_32.c -+++ b/arch/x86/mm/init_32.c -@@ -73,36 +73,6 @@ static __init void *alloc_low_page(void) - } - - /* -- * Creates a middle page table and puts a pointer to it in the -- * given global directory entry. This only returns the gd entry -- * in non-PAE compilation mode, since the middle layer is folded. -- */ --static pmd_t * __init one_md_table_init(pgd_t *pgd) --{ -- pud_t *pud; -- pmd_t *pmd_table; -- --#ifdef CONFIG_X86_PAE -- if (!(pgd_val(*pgd) & _PAGE_PRESENT)) { -- if (after_bootmem) -- pmd_table = (pmd_t *)alloc_bootmem_pages(PAGE_SIZE); -- else -- pmd_table = (pmd_t *)alloc_low_page(); -- paravirt_alloc_pmd(&init_mm, __pa(pmd_table) >> PAGE_SHIFT); -- set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT)); -- pud = pud_offset(pgd, 0); -- BUG_ON(pmd_table != pmd_offset(pud, 0)); -- -- return pmd_table; -- } --#endif -- pud = pud_offset(pgd, 0); -- pmd_table = pmd_offset(pud, 0); -- -- return pmd_table; --} -- --/* - * Create a page table and place a pointer to it in a middle page - * directory entry: - */ -@@ -122,13 +92,28 @@ static pte_t * __init one_page_table_init(pmd_t *pmd) - page_table = (pte_t *)alloc_low_page(); - - paravirt_alloc_pte(&init_mm, __pa(page_table) >> PAGE_SHIFT); -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ set_pmd(pmd, __pmd(__pa(page_table) | _KERNPG_TABLE)); -+#else - set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE)); -+#endif - BUG_ON(page_table != pte_offset_kernel(pmd, 0)); - } - - return pte_offset_kernel(pmd, 0); - } - -+static pmd_t * __init one_md_table_init(pgd_t *pgd) -+{ -+ pud_t *pud; -+ pmd_t *pmd_table; -+ -+ pud = pud_offset(pgd, 0); -+ pmd_table = pmd_offset(pud, 0); -+ -+ return pmd_table; -+} -+ - pmd_t * __init populate_extra_pmd(unsigned long vaddr) - { - int pgd_idx = pgd_index(vaddr); -@@ -202,6 +187,7 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base) - int pgd_idx, pmd_idx; - unsigned long vaddr; - pgd_t *pgd; -+ pud_t *pud; - pmd_t *pmd; - pte_t *pte = NULL; - -@@ -211,8 +197,13 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base) - pgd = pgd_base + pgd_idx; - - for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd++, pgd_idx++) { -- pmd = one_md_table_init(pgd); -- pmd = pmd + pmd_index(vaddr); -+ pud = pud_offset(pgd, vaddr); -+ pmd = pmd_offset(pud, vaddr); -+ -+#ifdef CONFIG_X86_PAE -+ paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT); -+#endif -+ - for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end); - pmd++, pmd_idx++) { - pte = page_table_kmap_check(one_page_table_init(pmd), -@@ -224,11 +215,20 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base) - } - } - --static inline int is_kernel_text(unsigned long addr) -+static inline int is_kernel_text(unsigned long start, unsigned long end) - { -- if (addr >= (unsigned long)_text && addr <= (unsigned long)__init_end) -- return 1; -- return 0; -+ if ((start > ktla_ktva((unsigned long)_etext) || -+ end <= ktla_ktva((unsigned long)_stext)) && -+ (start > ktla_ktva((unsigned long)_einittext) || -+ end <= ktla_ktva((unsigned long)_sinittext)) && -+ -+#ifdef CONFIG_ACPI_SLEEP -+ (start > (unsigned long)__va(acpi_wakeup_address) + 0x4000 || end <= (unsigned long)__va(acpi_wakeup_address)) && -+#endif -+ -+ (start > (unsigned long)__va(0xfffff) || end <= (unsigned long)__va(0xc0000))) -+ return 0; -+ return 1; - } - - /* -@@ -245,9 +245,10 @@ kernel_physical_mapping_init(unsigned long start, - unsigned long last_map_addr = end; - unsigned long start_pfn, end_pfn; - pgd_t *pgd_base = swapper_pg_dir; -- int pgd_idx, pmd_idx, pte_ofs; -+ unsigned int pgd_idx, pmd_idx, pte_ofs; - unsigned long pfn; - pgd_t *pgd; -+ pud_t *pud; - pmd_t *pmd; - pte_t *pte; - unsigned pages_2m, pages_4k; -@@ -280,8 +281,13 @@ repeat: - pfn = start_pfn; - pgd_idx = pgd_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET); - pgd = pgd_base + pgd_idx; -- for (; pgd_idx < PTRS_PER_PGD; pgd++, pgd_idx++) { -- pmd = one_md_table_init(pgd); -+ for (; pgd_idx < PTRS_PER_PGD && pfn < max_low_pfn; pgd++, pgd_idx++) { -+ pud = pud_offset(pgd, 0); -+ pmd = pmd_offset(pud, 0); -+ -+#ifdef CONFIG_X86_PAE -+ paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT); -+#endif - - if (pfn >= end_pfn) - continue; -@@ -293,14 +299,13 @@ repeat: - #endif - for (; pmd_idx < PTRS_PER_PMD && pfn < end_pfn; - pmd++, pmd_idx++) { -- unsigned int addr = pfn * PAGE_SIZE + PAGE_OFFSET; -+ unsigned long address = pfn * PAGE_SIZE + PAGE_OFFSET; - - /* - * Map with big pages if possible, otherwise - * create normal page tables: - */ - if (use_pse) { -- unsigned int addr2; - pgprot_t prot = PAGE_KERNEL_LARGE; - /* - * first pass will use the same initial -@@ -310,11 +315,7 @@ repeat: - __pgprot(PTE_IDENT_ATTR | - _PAGE_PSE); - -- addr2 = (pfn + PTRS_PER_PTE-1) * PAGE_SIZE + -- PAGE_OFFSET + PAGE_SIZE-1; -- -- if (is_kernel_text(addr) || -- is_kernel_text(addr2)) -+ if (is_kernel_text(address, address + PMD_SIZE)) - prot = PAGE_KERNEL_LARGE_EXEC; - - pages_2m++; -@@ -331,7 +332,7 @@ repeat: - pte_ofs = pte_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET); - pte += pte_ofs; - for (; pte_ofs < PTRS_PER_PTE && pfn < end_pfn; -- pte++, pfn++, pte_ofs++, addr += PAGE_SIZE) { -+ pte++, pfn++, pte_ofs++, address += PAGE_SIZE) { - pgprot_t prot = PAGE_KERNEL; - /* - * first pass will use the same initial -@@ -339,7 +340,7 @@ repeat: - */ - pgprot_t init_prot = __pgprot(PTE_IDENT_ATTR); - -- if (is_kernel_text(addr)) -+ if (is_kernel_text(address, address + PAGE_SIZE)) - prot = PAGE_KERNEL_EXEC; - - pages_4k++; -@@ -465,7 +466,7 @@ void __init native_pagetable_setup_start(pgd_t *base) - - pud = pud_offset(pgd, va); - pmd = pmd_offset(pud, va); -- if (!pmd_present(*pmd)) -+ if (!pmd_present(*pmd) || pmd_huge(*pmd)) - break; - - pte = pte_offset_kernel(pmd, va); -@@ -517,12 +518,10 @@ void __init early_ioremap_page_table_range_init(void) - - static void __init pagetable_init(void) - { -- pgd_t *pgd_base = swapper_pg_dir; -- -- permanent_kmaps_init(pgd_base); -+ permanent_kmaps_init(swapper_pg_dir); - } - --pteval_t __supported_pte_mask __read_mostly = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP); -+pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP); - EXPORT_SYMBOL_GPL(__supported_pte_mask); - - /* user-defined highmem size */ -@@ -734,6 +733,12 @@ void __init mem_init(void) - - pci_iommu_alloc(); - -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ clone_pgd_range(get_cpu_pgd(0) + KERNEL_PGD_BOUNDARY, -+ swapper_pg_dir + KERNEL_PGD_BOUNDARY, -+ KERNEL_PGD_PTRS); -+#endif -+ - #ifdef CONFIG_FLATMEM - BUG_ON(!mem_map); - #endif -@@ -760,7 +765,7 @@ void __init mem_init(void) - reservedpages++; - - codesize = (unsigned long) &_etext - (unsigned long) &_text; -- datasize = (unsigned long) &_edata - (unsigned long) &_etext; -+ datasize = (unsigned long) &_edata - (unsigned long) &_sdata; - initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; - - printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, " -@@ -801,10 +806,10 @@ void __init mem_init(void) - ((unsigned long)&__init_end - - (unsigned long)&__init_begin) >> 10, - -- (unsigned long)&_etext, (unsigned long)&_edata, -- ((unsigned long)&_edata - (unsigned long)&_etext) >> 10, -+ (unsigned long)&_sdata, (unsigned long)&_edata, -+ ((unsigned long)&_edata - (unsigned long)&_sdata) >> 10, - -- (unsigned long)&_text, (unsigned long)&_etext, -+ ktla_ktva((unsigned long)&_text), ktla_ktva((unsigned long)&_etext), - ((unsigned long)&_etext - (unsigned long)&_text) >> 10); - - /* -@@ -882,6 +887,7 @@ void set_kernel_text_rw(void) - if (!kernel_set_to_readonly) - return; - -+ start = ktla_ktva(start); - pr_debug("Set kernel text: %lx - %lx for read write\n", - start, start+size); - -@@ -896,6 +902,7 @@ void set_kernel_text_ro(void) - if (!kernel_set_to_readonly) - return; - -+ start = ktla_ktva(start); - pr_debug("Set kernel text: %lx - %lx for read only\n", - start, start+size); - -@@ -924,6 +931,7 @@ void mark_rodata_ro(void) - unsigned long start = PFN_ALIGN(_text); - unsigned long size = PFN_ALIGN(_etext) - start; - -+ start = ktla_ktva(start); - set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT); - printk(KERN_INFO "Write protecting the kernel text: %luk\n", - size >> 10); -diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c -index fc18be0..e539653 100644 ---- a/arch/x86/mm/init_64.c -+++ b/arch/x86/mm/init_64.c -@@ -74,7 +74,7 @@ early_param("gbpages", parse_direct_gbpages_on); - * around without checking the pgd every time. - */ - --pteval_t __supported_pte_mask __read_mostly = ~_PAGE_IOMAP; -+pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_IOMAP); - EXPORT_SYMBOL_GPL(__supported_pte_mask); - - int force_personality32; -@@ -107,12 +107,22 @@ void sync_global_pgds(unsigned long start, unsigned long end) - - for (address = start; address <= end; address += PGDIR_SIZE) { - const pgd_t *pgd_ref = pgd_offset_k(address); -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ unsigned long cpu; -+#else - struct page *page; -+#endif - - if (pgd_none(*pgd_ref)) - continue; - - spin_lock(&pgd_lock); -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ for (cpu = 0; cpu < nr_cpu_ids; ++cpu) { -+ pgd_t *pgd = pgd_offset_cpu(cpu, address); -+#else - list_for_each_entry(page, &pgd_list, lru) { - pgd_t *pgd; - spinlock_t *pgt_lock; -@@ -121,6 +131,7 @@ void sync_global_pgds(unsigned long start, unsigned long end) - /* the pgt_lock only for Xen */ - pgt_lock = &pgd_page_get_mm(page)->page_table_lock; - spin_lock(pgt_lock); -+#endif - - if (pgd_none(*pgd)) - set_pgd(pgd, *pgd_ref); -@@ -128,7 +139,10 @@ void sync_global_pgds(unsigned long start, unsigned long end) - BUG_ON(pgd_page_vaddr(*pgd) - != pgd_page_vaddr(*pgd_ref)); - -+#ifndef CONFIG_PAX_PER_CPU_PGD - spin_unlock(pgt_lock); -+#endif -+ - } - spin_unlock(&pgd_lock); - } -@@ -161,7 +175,7 @@ static pud_t *fill_pud(pgd_t *pgd, unsigned long vaddr) - { - if (pgd_none(*pgd)) { - pud_t *pud = (pud_t *)spp_getpage(); -- pgd_populate(&init_mm, pgd, pud); -+ pgd_populate_kernel(&init_mm, pgd, pud); - if (pud != pud_offset(pgd, 0)) - printk(KERN_ERR "PAGETABLE BUG #00! %p <-> %p\n", - pud, pud_offset(pgd, 0)); -@@ -173,7 +187,7 @@ static pmd_t *fill_pmd(pud_t *pud, unsigned long vaddr) - { - if (pud_none(*pud)) { - pmd_t *pmd = (pmd_t *) spp_getpage(); -- pud_populate(&init_mm, pud, pmd); -+ pud_populate_kernel(&init_mm, pud, pmd); - if (pmd != pmd_offset(pud, 0)) - printk(KERN_ERR "PAGETABLE BUG #01! %p <-> %p\n", - pmd, pmd_offset(pud, 0)); -@@ -202,7 +216,9 @@ void set_pte_vaddr_pud(pud_t *pud_page, unsigned long vaddr, pte_t new_pte) - pmd = fill_pmd(pud, vaddr); - pte = fill_pte(pmd, vaddr); - -+ pax_open_kernel(); - set_pte(pte, new_pte); -+ pax_close_kernel(); - - /* - * It's enough to flush this one mapping. -@@ -261,14 +277,12 @@ static void __init __init_extra_mapping(unsigned long phys, unsigned long size, - pgd = pgd_offset_k((unsigned long)__va(phys)); - if (pgd_none(*pgd)) { - pud = (pud_t *) spp_getpage(); -- set_pgd(pgd, __pgd(__pa(pud) | _KERNPG_TABLE | -- _PAGE_USER)); -+ set_pgd(pgd, __pgd(__pa(pud) | _PAGE_TABLE)); - } - pud = pud_offset(pgd, (unsigned long)__va(phys)); - if (pud_none(*pud)) { - pmd = (pmd_t *) spp_getpage(); -- set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE | -- _PAGE_USER)); -+ set_pud(pud, __pud(__pa(pmd) | _PAGE_TABLE)); - } - pmd = pmd_offset(pud, phys); - BUG_ON(!pmd_none(*pmd)); -@@ -329,7 +343,7 @@ static __ref void *alloc_low_page(unsigned long *phys) - if (pfn >= pgt_buf_top) - panic("alloc_low_page: ran out of memory"); - -- adr = early_memremap(pfn * PAGE_SIZE, PAGE_SIZE); -+ adr = (void __force_kernel *)early_memremap(pfn * PAGE_SIZE, PAGE_SIZE); - clear_page(adr); - *phys = pfn * PAGE_SIZE; - return adr; -@@ -345,7 +359,7 @@ static __ref void *map_low_page(void *virt) - - phys = __pa(virt); - left = phys & (PAGE_SIZE - 1); -- adr = early_memremap(phys & PAGE_MASK, PAGE_SIZE); -+ adr = (void __force_kernel *)early_memremap(phys & PAGE_MASK, PAGE_SIZE); - adr = (void *)(((unsigned long)adr) | left); - - return adr; -@@ -545,7 +559,7 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end, - unmap_low_page(pmd); - - spin_lock(&init_mm.page_table_lock); -- pud_populate(&init_mm, pud, __va(pmd_phys)); -+ pud_populate_kernel(&init_mm, pud, __va(pmd_phys)); - spin_unlock(&init_mm.page_table_lock); - } - __flush_tlb_all(); -@@ -591,7 +605,7 @@ kernel_physical_mapping_init(unsigned long start, - unmap_low_page(pud); - - spin_lock(&init_mm.page_table_lock); -- pgd_populate(&init_mm, pgd, __va(pud_phys)); -+ pgd_populate_kernel(&init_mm, pgd, __va(pud_phys)); - spin_unlock(&init_mm.page_table_lock); - pgd_changed = true; - } -@@ -683,6 +697,12 @@ void __init mem_init(void) - - pci_iommu_alloc(); - -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ clone_pgd_range(get_cpu_pgd(0) + KERNEL_PGD_BOUNDARY, -+ swapper_pg_dir + KERNEL_PGD_BOUNDARY, -+ KERNEL_PGD_PTRS); -+#endif -+ - /* clear_bss() already clear the empty_zero_page */ - - reservedpages = 0; -@@ -843,8 +863,8 @@ int kern_addr_valid(unsigned long addr) - static struct vm_area_struct gate_vma = { - .vm_start = VSYSCALL_START, - .vm_end = VSYSCALL_START + (VSYSCALL_MAPPED_PAGES * PAGE_SIZE), -- .vm_page_prot = PAGE_READONLY_EXEC, -- .vm_flags = VM_READ | VM_EXEC -+ .vm_page_prot = PAGE_READONLY, -+ .vm_flags = VM_READ - }; - - struct vm_area_struct *get_gate_vma(struct mm_struct *mm) -@@ -878,7 +898,7 @@ int in_gate_area_no_mm(unsigned long addr) - - const char *arch_vma_name(struct vm_area_struct *vma) - { -- if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso) -+ if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso) - return "[vdso]"; - if (vma == &gate_vma) - return "[vsyscall]"; -diff --git a/arch/x86/mm/iomap_32.c b/arch/x86/mm/iomap_32.c -index 7b179b4..6bd1777 100644 ---- a/arch/x86/mm/iomap_32.c -+++ b/arch/x86/mm/iomap_32.c -@@ -64,7 +64,11 @@ void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot) - type = kmap_atomic_idx_push(); - idx = type + KM_TYPE_NR * smp_processor_id(); - vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); -+ -+ pax_open_kernel(); - set_pte(kmap_pte - idx, pfn_pte(pfn, prot)); -+ pax_close_kernel(); -+ - arch_flush_lazy_mmu_mode(); - - return (void *)vaddr; -diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c -index be1ef57..55f0160 100644 ---- a/arch/x86/mm/ioremap.c -+++ b/arch/x86/mm/ioremap.c -@@ -97,7 +97,7 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr, - for (pfn = phys_addr >> PAGE_SHIFT; pfn <= last_pfn; pfn++) { - int is_ram = page_is_ram(pfn); - -- if (is_ram && pfn_valid(pfn) && !PageReserved(pfn_to_page(pfn))) -+ if (is_ram && pfn_valid(pfn) && (pfn >= 0x100 || !PageReserved(pfn_to_page(pfn)))) - return NULL; - WARN_ON_ONCE(is_ram); - } -@@ -315,6 +315,9 @@ void *xlate_dev_mem_ptr(unsigned long phys) - - /* If page is RAM, we can use __va. Otherwise ioremap and unmap. */ - if (page_is_ram(start >> PAGE_SHIFT)) -+#ifdef CONFIG_HIGHMEM -+ if ((start >> PAGE_SHIFT) < max_low_pfn) -+#endif - return __va(phys); - - addr = (void __force *)ioremap_cache(start, PAGE_SIZE); -@@ -344,7 +347,7 @@ static int __init early_ioremap_debug_setup(char *str) - early_param("early_ioremap_debug", early_ioremap_debug_setup); - - static __initdata int after_paging_init; --static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss; -+static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __read_only __aligned(PAGE_SIZE); - - static inline pmd_t * __init early_ioremap_pmd(unsigned long addr) - { -@@ -381,8 +384,7 @@ void __init early_ioremap_init(void) - slot_virt[i] = __fix_to_virt(FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*i); - - pmd = early_ioremap_pmd(fix_to_virt(FIX_BTMAP_BEGIN)); -- memset(bm_pte, 0, sizeof(bm_pte)); -- pmd_populate_kernel(&init_mm, pmd, bm_pte); -+ pmd_populate_user(&init_mm, pmd, bm_pte); - - /* - * The boot-ioremap range spans multiple pmds, for which -diff --git a/arch/x86/mm/kmemcheck/kmemcheck.c b/arch/x86/mm/kmemcheck/kmemcheck.c -index d87dd6d..bf3fa66 100644 ---- a/arch/x86/mm/kmemcheck/kmemcheck.c -+++ b/arch/x86/mm/kmemcheck/kmemcheck.c -@@ -622,9 +622,9 @@ bool kmemcheck_fault(struct pt_regs *regs, unsigned long address, - * memory (e.g. tracked pages)? For now, we need this to avoid - * invoking kmemcheck for PnP BIOS calls. - */ -- if (regs->flags & X86_VM_MASK) -+ if (v8086_mode(regs)) - return false; -- if (regs->cs != __KERNEL_CS) -+ if (regs->cs != __KERNEL_CS && regs->cs != __KERNEXEC_KERNEL_CS) - return false; - - pte = kmemcheck_pte_lookup(address); -diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c -index 845df68..1d8d29f 100644 ---- a/arch/x86/mm/mmap.c -+++ b/arch/x86/mm/mmap.c -@@ -52,7 +52,7 @@ static unsigned int stack_maxrandom_size(void) - * Leave an at least ~128 MB hole with possible stack randomization. - */ - #define MIN_GAP (128*1024*1024UL + stack_maxrandom_size()) --#define MAX_GAP (TASK_SIZE/6*5) -+#define MAX_GAP (pax_task_size/6*5) - - static int mmap_is_legacy(void) - { -@@ -82,27 +82,40 @@ static unsigned long mmap_rnd(void) - return rnd << PAGE_SHIFT; - } - --static unsigned long mmap_base(void) -+static unsigned long mmap_base(struct mm_struct *mm) - { - unsigned long gap = rlimit(RLIMIT_STACK); -+ unsigned long pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif - - if (gap < MIN_GAP) - gap = MIN_GAP; - else if (gap > MAX_GAP) - gap = MAX_GAP; - -- return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd()); -+ return PAGE_ALIGN(pax_task_size - gap - mmap_rnd()); - } - - /* - * Bottom-up (legacy) layout on X86_32 did not support randomization, X86_64 - * does, but not when emulating X86_32 - */ --static unsigned long mmap_legacy_base(void) -+static unsigned long mmap_legacy_base(struct mm_struct *mm) - { -- if (mmap_is_ia32()) -+ if (mmap_is_ia32()) { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ return SEGMEXEC_TASK_UNMAPPED_BASE; -+ else -+#endif -+ - return TASK_UNMAPPED_BASE; -- else -+ } else - return TASK_UNMAPPED_BASE + mmap_rnd(); - } - -@@ -113,11 +126,23 @@ static unsigned long mmap_legacy_base(void) - void arch_pick_mmap_layout(struct mm_struct *mm) - { - if (mmap_is_legacy()) { -- mm->mmap_base = mmap_legacy_base(); -+ mm->mmap_base = mmap_legacy_base(mm); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } else { -- mm->mmap_base = mmap_base(); -+ mm->mmap_base = mmap_base(mm); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area_topdown; - mm->unmap_area = arch_unmap_area_topdown; - } -diff --git a/arch/x86/mm/mmio-mod.c b/arch/x86/mm/mmio-mod.c -index dc0b727..dc9d71a 100644 ---- a/arch/x86/mm/mmio-mod.c -+++ b/arch/x86/mm/mmio-mod.c -@@ -194,7 +194,7 @@ static void pre(struct kmmio_probe *p, struct pt_regs *regs, - break; - default: - { -- unsigned char *ip = (unsigned char *)instptr; -+ unsigned char *ip = (unsigned char *)ktla_ktva(instptr); - my_trace->opcode = MMIO_UNKNOWN_OP; - my_trace->width = 0; - my_trace->value = (*ip) << 16 | *(ip + 1) << 8 | -@@ -234,7 +234,7 @@ static void post(struct kmmio_probe *p, unsigned long condition, - static void ioremap_trace_core(resource_size_t offset, unsigned long size, - void __iomem *addr) - { -- static atomic_t next_id; -+ static atomic_unchecked_t next_id; - struct remap_trace *trace = kmalloc(sizeof(*trace), GFP_KERNEL); - /* These are page-unaligned. */ - struct mmiotrace_map map = { -@@ -258,7 +258,7 @@ static void ioremap_trace_core(resource_size_t offset, unsigned long size, - .private = trace - }, - .phys = offset, -- .id = atomic_inc_return(&next_id) -+ .id = atomic_inc_return_unchecked(&next_id) - }; - map.map_id = trace->id; - -diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c -index b008656..773eac2 100644 ---- a/arch/x86/mm/pageattr-test.c -+++ b/arch/x86/mm/pageattr-test.c -@@ -36,7 +36,7 @@ enum { - - static int pte_testbit(pte_t pte) - { -- return pte_flags(pte) & _PAGE_UNUSED1; -+ return pte_flags(pte) & _PAGE_CPA_TEST; - } - - struct split_state { -diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c -index e1ebde3..b1e1db38 100644 ---- a/arch/x86/mm/pageattr.c -+++ b/arch/x86/mm/pageattr.c -@@ -261,7 +261,7 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address, - */ - #ifdef CONFIG_PCI_BIOS - if (pcibios_enabled && within(pfn, BIOS_BEGIN >> PAGE_SHIFT, BIOS_END >> PAGE_SHIFT)) -- pgprot_val(forbidden) |= _PAGE_NX; -+ pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask; - #endif - - /* -@@ -269,9 +269,10 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address, - * Does not cover __inittext since that is gone later on. On - * 64bit we do not enforce !NX on the low mapping - */ -- if (within(address, (unsigned long)_text, (unsigned long)_etext)) -- pgprot_val(forbidden) |= _PAGE_NX; -+ if (within(address, ktla_ktva((unsigned long)_text), ktla_ktva((unsigned long)_etext))) -+ pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask; - -+#ifdef CONFIG_DEBUG_RODATA - /* - * The .rodata section needs to be read-only. Using the pfn - * catches all aliases. -@@ -279,6 +280,7 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address, - if (within(pfn, __pa((unsigned long)__start_rodata) >> PAGE_SHIFT, - __pa((unsigned long)__end_rodata) >> PAGE_SHIFT)) - pgprot_val(forbidden) |= _PAGE_RW; -+#endif - - #if defined(CONFIG_X86_64) && defined(CONFIG_DEBUG_RODATA) - /* -@@ -317,6 +319,13 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address, - } - #endif - -+#ifdef CONFIG_PAX_KERNEXEC -+ if (within(pfn, __pa((unsigned long)&_text), __pa((unsigned long)&_sdata))) { -+ pgprot_val(forbidden) |= _PAGE_RW; -+ pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask; -+ } -+#endif -+ - prot = __pgprot(pgprot_val(prot) & ~pgprot_val(forbidden)); - - return prot; -@@ -369,23 +378,37 @@ EXPORT_SYMBOL_GPL(lookup_address); - static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte) - { - /* change init_mm */ -+ pax_open_kernel(); - set_pte_atomic(kpte, pte); -+ - #ifdef CONFIG_X86_32 - if (!SHARED_KERNEL_PMD) { -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ unsigned long cpu; -+#else - struct page *page; -+#endif - -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ for (cpu = 0; cpu < nr_cpu_ids; ++cpu) { -+ pgd_t *pgd = get_cpu_pgd(cpu); -+#else - list_for_each_entry(page, &pgd_list, lru) { -- pgd_t *pgd; -+ pgd_t *pgd = (pgd_t *)page_address(page); -+#endif -+ - pud_t *pud; - pmd_t *pmd; - -- pgd = (pgd_t *)page_address(page) + pgd_index(address); -+ pgd += pgd_index(address); - pud = pud_offset(pgd, address); - pmd = pmd_offset(pud, address); - set_pte_atomic((pte_t *)pmd, pte); - } - } - #endif -+ pax_close_kernel(); - } - - static int -diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c -index f6ff57b..481690f 100644 ---- a/arch/x86/mm/pat.c -+++ b/arch/x86/mm/pat.c -@@ -361,7 +361,7 @@ int free_memtype(u64 start, u64 end) - - if (!entry) { - printk(KERN_INFO "%s:%d freeing invalid memtype %Lx-%Lx\n", -- current->comm, current->pid, start, end); -+ current->comm, task_pid_nr(current), start, end); - return -EINVAL; - } - -@@ -492,8 +492,8 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size) - while (cursor < to) { - if (!devmem_is_allowed(pfn)) { - printk(KERN_INFO -- "Program %s tried to access /dev/mem between %Lx->%Lx.\n", -- current->comm, from, to); -+ "Program %s tried to access /dev/mem between %Lx->%Lx (%Lx).\n", -+ current->comm, from, to, cursor); - return 0; - } - cursor += PAGE_SIZE; -@@ -557,7 +557,7 @@ int kernel_map_sync_memtype(u64 base, unsigned long size, unsigned long flags) - printk(KERN_INFO - "%s:%d ioremap_change_attr failed %s " - "for %Lx-%Lx\n", -- current->comm, current->pid, -+ current->comm, task_pid_nr(current), - cattr_name(flags), - base, (unsigned long long)(base + size)); - return -EINVAL; -@@ -593,7 +593,7 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot, - if (want_flags != flags) { - printk(KERN_WARNING - "%s:%d map pfn RAM range req %s for %Lx-%Lx, got %s\n", -- current->comm, current->pid, -+ current->comm, task_pid_nr(current), - cattr_name(want_flags), - (unsigned long long)paddr, - (unsigned long long)(paddr + size), -@@ -615,7 +615,7 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot, - free_memtype(paddr, paddr + size); - printk(KERN_ERR "%s:%d map pfn expected mapping type %s" - " for %Lx-%Lx, got %s\n", -- current->comm, current->pid, -+ current->comm, task_pid_nr(current), - cattr_name(want_flags), - (unsigned long long)paddr, - (unsigned long long)(paddr + size), -diff --git a/arch/x86/mm/pf_in.c b/arch/x86/mm/pf_in.c -index 9f0614d..92ae64a 100644 ---- a/arch/x86/mm/pf_in.c -+++ b/arch/x86/mm/pf_in.c -@@ -148,7 +148,7 @@ enum reason_type get_ins_type(unsigned long ins_addr) - int i; - enum reason_type rv = OTHERS; - -- p = (unsigned char *)ins_addr; -+ p = (unsigned char *)ktla_ktva(ins_addr); - p += skip_prefix(p, &prf); - p += get_opcode(p, &opcode); - -@@ -168,7 +168,7 @@ static unsigned int get_ins_reg_width(unsigned long ins_addr) - struct prefix_bits prf; - int i; - -- p = (unsigned char *)ins_addr; -+ p = (unsigned char *)ktla_ktva(ins_addr); - p += skip_prefix(p, &prf); - p += get_opcode(p, &opcode); - -@@ -191,7 +191,7 @@ unsigned int get_ins_mem_width(unsigned long ins_addr) - struct prefix_bits prf; - int i; - -- p = (unsigned char *)ins_addr; -+ p = (unsigned char *)ktla_ktva(ins_addr); - p += skip_prefix(p, &prf); - p += get_opcode(p, &opcode); - -@@ -415,7 +415,7 @@ unsigned long get_ins_reg_val(unsigned long ins_addr, struct pt_regs *regs) - struct prefix_bits prf; - int i; - -- p = (unsigned char *)ins_addr; -+ p = (unsigned char *)ktla_ktva(ins_addr); - p += skip_prefix(p, &prf); - p += get_opcode(p, &opcode); - for (i = 0; i < ARRAY_SIZE(reg_rop); i++) -@@ -470,7 +470,7 @@ unsigned long get_ins_imm_val(unsigned long ins_addr) - struct prefix_bits prf; - int i; - -- p = (unsigned char *)ins_addr; -+ p = (unsigned char *)ktla_ktva(ins_addr); - p += skip_prefix(p, &prf); - p += get_opcode(p, &opcode); - for (i = 0; i < ARRAY_SIZE(imm_wop); i++) -diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c -index 8573b83..4f3ed7e 100644 ---- a/arch/x86/mm/pgtable.c -+++ b/arch/x86/mm/pgtable.c -@@ -84,10 +84,64 @@ static inline void pgd_list_del(pgd_t *pgd) - list_del(&page->lru); - } - --#define UNSHARED_PTRS_PER_PGD \ -- (SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD) -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+pgdval_t clone_pgd_mask __read_only = ~_PAGE_PRESENT; - -+void __shadow_user_pgds(pgd_t *dst, const pgd_t *src) -+{ -+ unsigned int count = USER_PGD_PTRS; - -+ while (count--) -+ *dst++ = __pgd((pgd_val(*src++) | (_PAGE_NX & __supported_pte_mask)) & ~_PAGE_USER); -+} -+#endif -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+void __clone_user_pgds(pgd_t *dst, const pgd_t *src) -+{ -+ unsigned int count = USER_PGD_PTRS; -+ -+ while (count--) { -+ pgd_t pgd; -+ -+#ifdef CONFIG_X86_64 -+ pgd = __pgd(pgd_val(*src++) | _PAGE_USER); -+#else -+ pgd = *src++; -+#endif -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ pgd = __pgd(pgd_val(pgd) & clone_pgd_mask); -+#endif -+ -+ *dst++ = pgd; -+ } -+ -+} -+#endif -+ -+#ifdef CONFIG_X86_64 -+#define pxd_t pud_t -+#define pyd_t pgd_t -+#define paravirt_release_pxd(pfn) paravirt_release_pud(pfn) -+#define pxd_free(mm, pud) pud_free((mm), (pud)) -+#define pyd_populate(mm, pgd, pud) pgd_populate((mm), (pgd), (pud)) -+#define pyd_offset(mm, address) pgd_offset((mm), (address)) -+#define PYD_SIZE PGDIR_SIZE -+#else -+#define pxd_t pmd_t -+#define pyd_t pud_t -+#define paravirt_release_pxd(pfn) paravirt_release_pmd(pfn) -+#define pxd_free(mm, pud) pmd_free((mm), (pud)) -+#define pyd_populate(mm, pgd, pud) pud_populate((mm), (pgd), (pud)) -+#define pyd_offset(mm, address) pud_offset((mm), (address)) -+#define PYD_SIZE PUD_SIZE -+#endif -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+static inline void pgd_ctor(struct mm_struct *mm, pgd_t *pgd) {} -+static inline void pgd_dtor(pgd_t *pgd) {} -+#else - static void pgd_set_mm(pgd_t *pgd, struct mm_struct *mm) - { - BUILD_BUG_ON(sizeof(virt_to_page(pgd)->index) < sizeof(mm)); -@@ -128,6 +182,7 @@ static void pgd_dtor(pgd_t *pgd) - pgd_list_del(pgd); - spin_unlock(&pgd_lock); - } -+#endif - - /* - * List of all pgd's needed for non-PAE so it can invalidate entries -@@ -140,7 +195,7 @@ static void pgd_dtor(pgd_t *pgd) - * -- wli - */ - --#ifdef CONFIG_X86_PAE -+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE) - /* - * In PAE mode, we need to do a cr3 reload (=tlb flush) when - * updating the top-level pagetable entries to guarantee the -@@ -152,7 +207,7 @@ static void pgd_dtor(pgd_t *pgd) - * not shared between pagetables (!SHARED_KERNEL_PMDS), we allocate - * and initialize the kernel pmds here. - */ --#define PREALLOCATED_PMDS UNSHARED_PTRS_PER_PGD -+#define PREALLOCATED_PXDS (SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD) - - void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd) - { -@@ -170,36 +225,38 @@ void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd) - */ - flush_tlb_mm(mm); - } -+#elif defined(CONFIG_X86_64) && defined(CONFIG_PAX_PER_CPU_PGD) -+#define PREALLOCATED_PXDS USER_PGD_PTRS - #else /* !CONFIG_X86_PAE */ - - /* No need to prepopulate any pagetable entries in non-PAE modes. */ --#define PREALLOCATED_PMDS 0 -+#define PREALLOCATED_PXDS 0 - - #endif /* CONFIG_X86_PAE */ - --static void free_pmds(pmd_t *pmds[]) -+static void free_pxds(pxd_t *pxds[]) - { - int i; - -- for(i = 0; i < PREALLOCATED_PMDS; i++) -- if (pmds[i]) -- free_page((unsigned long)pmds[i]); -+ for(i = 0; i < PREALLOCATED_PXDS; i++) -+ if (pxds[i]) -+ free_page((unsigned long)pxds[i]); - } - --static int preallocate_pmds(pmd_t *pmds[]) -+static int preallocate_pxds(pxd_t *pxds[]) - { - int i; - bool failed = false; - -- for(i = 0; i < PREALLOCATED_PMDS; i++) { -- pmd_t *pmd = (pmd_t *)__get_free_page(PGALLOC_GFP); -- if (pmd == NULL) -+ for(i = 0; i < PREALLOCATED_PXDS; i++) { -+ pxd_t *pxd = (pxd_t *)__get_free_page(PGALLOC_GFP); -+ if (pxd == NULL) - failed = true; -- pmds[i] = pmd; -+ pxds[i] = pxd; - } - - if (failed) { -- free_pmds(pmds); -+ free_pxds(pxds); - return -ENOMEM; - } - -@@ -212,51 +269,55 @@ static int preallocate_pmds(pmd_t *pmds[]) - * preallocate which never got a corresponding vma will need to be - * freed manually. - */ --static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp) -+static void pgd_mop_up_pxds(struct mm_struct *mm, pgd_t *pgdp) - { - int i; - -- for(i = 0; i < PREALLOCATED_PMDS; i++) { -+ for(i = 0; i < PREALLOCATED_PXDS; i++) { - pgd_t pgd = pgdp[i]; - - if (pgd_val(pgd) != 0) { -- pmd_t *pmd = (pmd_t *)pgd_page_vaddr(pgd); -+ pxd_t *pxd = (pxd_t *)pgd_page_vaddr(pgd); - -- pgdp[i] = native_make_pgd(0); -+ set_pgd(pgdp + i, native_make_pgd(0)); - -- paravirt_release_pmd(pgd_val(pgd) >> PAGE_SHIFT); -- pmd_free(mm, pmd); -+ paravirt_release_pxd(pgd_val(pgd) >> PAGE_SHIFT); -+ pxd_free(mm, pxd); - } - } - } - --static void pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmds[]) -+static void pgd_prepopulate_pxd(struct mm_struct *mm, pgd_t *pgd, pxd_t *pxds[]) - { -- pud_t *pud; -+ pyd_t *pyd; - unsigned long addr; - int i; - -- if (PREALLOCATED_PMDS == 0) /* Work around gcc-3.4.x bug */ -+ if (PREALLOCATED_PXDS == 0) /* Work around gcc-3.4.x bug */ - return; - -- pud = pud_offset(pgd, 0); -+#ifdef CONFIG_X86_64 -+ pyd = pyd_offset(mm, 0L); -+#else -+ pyd = pyd_offset(pgd, 0L); -+#endif - -- for (addr = i = 0; i < PREALLOCATED_PMDS; -- i++, pud++, addr += PUD_SIZE) { -- pmd_t *pmd = pmds[i]; -+ for (addr = i = 0; i < PREALLOCATED_PXDS; -+ i++, pyd++, addr += PYD_SIZE) { -+ pxd_t *pxd = pxds[i]; - - if (i >= KERNEL_PGD_BOUNDARY) -- memcpy(pmd, (pmd_t *)pgd_page_vaddr(swapper_pg_dir[i]), -- sizeof(pmd_t) * PTRS_PER_PMD); -+ memcpy(pxd, (pxd_t *)pgd_page_vaddr(swapper_pg_dir[i]), -+ sizeof(pxd_t) * PTRS_PER_PMD); - -- pud_populate(mm, pud, pmd); -+ pyd_populate(mm, pyd, pxd); - } - } - - pgd_t *pgd_alloc(struct mm_struct *mm) - { - pgd_t *pgd; -- pmd_t *pmds[PREALLOCATED_PMDS]; -+ pxd_t *pxds[PREALLOCATED_PXDS]; - - pgd = (pgd_t *)__get_free_page(PGALLOC_GFP); - -@@ -265,11 +326,11 @@ pgd_t *pgd_alloc(struct mm_struct *mm) - - mm->pgd = pgd; - -- if (preallocate_pmds(pmds) != 0) -+ if (preallocate_pxds(pxds) != 0) - goto out_free_pgd; - - if (paravirt_pgd_alloc(mm) != 0) -- goto out_free_pmds; -+ goto out_free_pxds; - - /* - * Make sure that pre-populating the pmds is atomic with -@@ -279,14 +340,14 @@ pgd_t *pgd_alloc(struct mm_struct *mm) - spin_lock(&pgd_lock); - - pgd_ctor(mm, pgd); -- pgd_prepopulate_pmd(mm, pgd, pmds); -+ pgd_prepopulate_pxd(mm, pgd, pxds); - - spin_unlock(&pgd_lock); - - return pgd; - --out_free_pmds: -- free_pmds(pmds); -+out_free_pxds: -+ free_pxds(pxds); - out_free_pgd: - free_page((unsigned long)pgd); - out: -@@ -295,7 +356,7 @@ out: - - void pgd_free(struct mm_struct *mm, pgd_t *pgd) - { -- pgd_mop_up_pmds(mm, pgd); -+ pgd_mop_up_pxds(mm, pgd); - pgd_dtor(pgd); - paravirt_pgd_free(mm, pgd); - free_page((unsigned long)pgd); -diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c -index a69bcb8..19068ab 100644 ---- a/arch/x86/mm/pgtable_32.c -+++ b/arch/x86/mm/pgtable_32.c -@@ -47,10 +47,13 @@ void set_pte_vaddr(unsigned long vaddr, pte_t pteval) - return; - } - pte = pte_offset_kernel(pmd, vaddr); -+ -+ pax_open_kernel(); - if (pte_val(pteval)) - set_pte_at(&init_mm, vaddr, pte, pteval); - else - pte_clear(&init_mm, vaddr, pte); -+ pax_close_kernel(); - - /* - * It's enough to flush this one mapping. -diff --git a/arch/x86/mm/setup_nx.c b/arch/x86/mm/setup_nx.c -index 410531d..0f16030 100644 ---- a/arch/x86/mm/setup_nx.c -+++ b/arch/x86/mm/setup_nx.c -@@ -5,8 +5,10 @@ - #include <asm/pgtable.h> - #include <asm/proto.h> - -+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) - static int disable_nx __cpuinitdata; - -+#ifndef CONFIG_PAX_PAGEEXEC - /* - * noexec = on|off - * -@@ -28,12 +30,17 @@ static int __init noexec_setup(char *str) - return 0; - } - early_param("noexec", noexec_setup); -+#endif -+ -+#endif - - void __cpuinit x86_configure_nx(void) - { -+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) - if (cpu_has_nx && !disable_nx) - __supported_pte_mask |= _PAGE_NX; - else -+#endif - __supported_pte_mask &= ~_PAGE_NX; - } - -diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c -index d6c0418..06a0ad5 100644 ---- a/arch/x86/mm/tlb.c -+++ b/arch/x86/mm/tlb.c -@@ -65,7 +65,11 @@ void leave_mm(int cpu) - BUG(); - cpumask_clear_cpu(cpu, - mm_cpumask(percpu_read(cpu_tlbstate.active_mm))); -+ -+#ifndef CONFIG_PAX_PER_CPU_PGD - load_cr3(swapper_pg_dir); -+#endif -+ - } - EXPORT_SYMBOL_GPL(leave_mm); - -diff --git a/arch/x86/net/bpf_jit.S b/arch/x86/net/bpf_jit.S -index 877b9a1..a8ecf42 100644 ---- a/arch/x86/net/bpf_jit.S -+++ b/arch/x86/net/bpf_jit.S -@@ -9,6 +9,7 @@ - */ - #include <linux/linkage.h> - #include <asm/dwarf2.h> -+#include <asm/alternative-asm.h> - - /* - * Calling convention : -@@ -35,6 +36,7 @@ sk_load_word_positive_offset: - jle bpf_slow_path_word - mov (SKBDATA,%rsi),%eax - bswap %eax /* ntohl() */ -+ pax_force_retaddr - ret - - sk_load_half: -@@ -52,6 +54,7 @@ sk_load_half_positive_offset: - jle bpf_slow_path_half - movzwl (SKBDATA,%rsi),%eax - rol $8,%ax # ntohs() -+ pax_force_retaddr - ret - - sk_load_byte: -@@ -66,6 +69,7 @@ sk_load_byte_positive_offset: - cmp %esi,%r9d /* if (offset >= hlen) goto bpf_slow_path_byte */ - jle bpf_slow_path_byte - movzbl (SKBDATA,%rsi),%eax -+ pax_force_retaddr - ret - - /** -@@ -87,6 +91,7 @@ sk_load_byte_msh_positive_offset: - movzbl (SKBDATA,%rsi),%ebx - and $15,%bl - shl $2,%bl -+ pax_force_retaddr - ret - - /* rsi contains offset and can be scratched */ -@@ -109,6 +114,7 @@ bpf_slow_path_word: - js bpf_error - mov -12(%rbp),%eax - bswap %eax -+ pax_force_retaddr - ret - - bpf_slow_path_half: -@@ -117,12 +123,14 @@ bpf_slow_path_half: - mov -12(%rbp),%ax - rol $8,%ax - movzwl %ax,%eax -+ pax_force_retaddr - ret - - bpf_slow_path_byte: - bpf_slow_path_common(1) - js bpf_error - movzbl -12(%rbp),%eax -+ pax_force_retaddr - ret - - bpf_slow_path_byte_msh: -@@ -133,6 +141,7 @@ bpf_slow_path_byte_msh: - and $15,%al - shl $2,%al - xchg %eax,%ebx -+ pax_force_retaddr - ret - - #define sk_negative_common(SIZE) \ -@@ -157,6 +166,7 @@ sk_load_word_negative_offset: - sk_negative_common(4) - mov (%rax), %eax - bswap %eax -+ pax_force_retaddr - ret - - bpf_slow_path_half_neg: -@@ -168,6 +178,7 @@ sk_load_half_negative_offset: - mov (%rax),%ax - rol $8,%ax - movzwl %ax,%eax -+ pax_force_retaddr - ret - - bpf_slow_path_byte_neg: -@@ -177,6 +188,7 @@ sk_load_byte_negative_offset: - .globl sk_load_byte_negative_offset - sk_negative_common(1) - movzbl (%rax), %eax -+ pax_force_retaddr - ret - - bpf_slow_path_byte_msh_neg: -@@ -190,6 +202,7 @@ sk_load_byte_msh_negative_offset: - and $15,%al - shl $2,%al - xchg %eax,%ebx -+ pax_force_retaddr - ret - - bpf_error: -@@ -197,4 +210,5 @@ bpf_error: - xor %eax,%eax - mov -8(%rbp),%rbx - leaveq -+ pax_force_retaddr - ret -diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c -index 0597f95..a12c36e 100644 ---- a/arch/x86/net/bpf_jit_comp.c -+++ b/arch/x86/net/bpf_jit_comp.c -@@ -120,6 +120,11 @@ static inline void bpf_flush_icache(void *start, void *end) - set_fs(old_fs); - } - -+struct bpf_jit_work { -+ struct work_struct work; -+ void *image; -+}; -+ - #define CHOOSE_LOAD_FUNC(K, func) \ - ((int)K < 0 ? ((int)K >= SKF_LL_OFF ? func##_negative_offset : func) : func##_positive_offset) - -@@ -146,6 +151,10 @@ void bpf_jit_compile(struct sk_filter *fp) - if (addrs == NULL) - return; - -+ fp->work = kmalloc(sizeof(*fp->work), GFP_KERNEL); -+ if (!fp->work) -+ goto out; -+ - /* Before first pass, make a rough estimation of addrs[] - * each bpf instruction is translated to less than 64 bytes - */ -@@ -589,17 +598,18 @@ cond_branch: f_offset = addrs[i + filter[i].jf] - addrs[i]; - break; - default: - /* hmm, too complex filter, give up with jit compiler */ -- goto out; -+ goto error; - } - ilen = prog - temp; - if (image) { - if (unlikely(proglen + ilen > oldproglen)) { - pr_err("bpb_jit_compile fatal error\n"); -- kfree(addrs); -- module_free(NULL, image); -- return; -+ module_free_exec(NULL, image); -+ goto error; - } -+ pax_open_kernel(); - memcpy(image + proglen, temp, ilen); -+ pax_close_kernel(); - } - proglen += ilen; - addrs[i] = proglen; -@@ -620,11 +630,9 @@ cond_branch: f_offset = addrs[i + filter[i].jf] - addrs[i]; - break; - } - if (proglen == oldproglen) { -- image = module_alloc(max_t(unsigned int, -- proglen, -- sizeof(struct work_struct))); -+ image = module_alloc_exec(proglen); - if (!image) -- goto out; -+ goto error; - } - oldproglen = proglen; - } -@@ -640,7 +648,10 @@ cond_branch: f_offset = addrs[i + filter[i].jf] - addrs[i]; - bpf_flush_icache(image, image + proglen); - - fp->bpf_func = (void *)image; -- } -+ } else -+error: -+ kfree(fp->work); -+ - out: - kfree(addrs); - return; -@@ -648,18 +659,20 @@ out: - - static void jit_free_defer(struct work_struct *arg) - { -- module_free(NULL, arg); -+ module_free_exec(NULL, ((struct bpf_jit_work *)arg)->image); -+ kfree(arg); - } - - /* run from softirq, we must use a work_struct to call -- * module_free() from process context -+ * module_free_exec() from process context - */ - void bpf_jit_free(struct sk_filter *fp) - { - if (fp->bpf_func != sk_run_filter) { -- struct work_struct *work = (struct work_struct *)fp->bpf_func; -+ struct work_struct *work = &fp->work->work; - - INIT_WORK(work, jit_free_defer); -+ fp->work->image = fp->bpf_func; - schedule_work(work); - } - } -diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c -index d6aa6e8..266395a 100644 ---- a/arch/x86/oprofile/backtrace.c -+++ b/arch/x86/oprofile/backtrace.c -@@ -46,11 +46,11 @@ dump_user_backtrace_32(struct stack_frame_ia32 *head) - struct stack_frame_ia32 *fp; - unsigned long bytes; - -- bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead)); -+ bytes = copy_from_user_nmi(bufhead, (const char __force_user *)head, sizeof(bufhead)); - if (bytes != sizeof(bufhead)) - return NULL; - -- fp = (struct stack_frame_ia32 *) compat_ptr(bufhead[0].next_frame); -+ fp = (struct stack_frame_ia32 __force_kernel *) compat_ptr(bufhead[0].next_frame); - - oprofile_add_trace(bufhead[0].return_address); - -@@ -92,7 +92,7 @@ static struct stack_frame *dump_user_backtrace(struct stack_frame *head) - struct stack_frame bufhead[2]; - unsigned long bytes; - -- bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead)); -+ bytes = copy_from_user_nmi(bufhead, (const char __force_user *)head, sizeof(bufhead)); - if (bytes != sizeof(bufhead)) - return NULL; - -@@ -111,7 +111,7 @@ x86_backtrace(struct pt_regs * const regs, unsigned int depth) - { - struct stack_frame *head = (struct stack_frame *)frame_pointer(regs); - -- if (!user_mode_vm(regs)) { -+ if (!user_mode(regs)) { - unsigned long stack = kernel_stack_pointer(regs); - if (depth) - dump_trace(NULL, regs, (unsigned long *)stack, 0, -diff --git a/arch/x86/pci/mrst.c b/arch/x86/pci/mrst.c -index 140942f..8a5cc55 100644 ---- a/arch/x86/pci/mrst.c -+++ b/arch/x86/pci/mrst.c -@@ -238,7 +238,9 @@ int __init pci_mrst_init(void) - printk(KERN_INFO "Intel MID platform detected, using MID PCI ops\n"); - pci_mmcfg_late_init(); - pcibios_enable_irq = mrst_pci_irq_enable; -- pci_root_ops = pci_mrst_ops; -+ pax_open_kernel(); -+ memcpy((void *)&pci_root_ops, &pci_mrst_ops, sizeof(pci_mrst_ops)); -+ pax_close_kernel(); - pci_soc_mode = 1; - /* Continue with standard init */ - return 1; -diff --git a/arch/x86/pci/pcbios.c b/arch/x86/pci/pcbios.c -index da8fe05..7ee6704 100644 ---- a/arch/x86/pci/pcbios.c -+++ b/arch/x86/pci/pcbios.c -@@ -79,50 +79,93 @@ union bios32 { - static struct { - unsigned long address; - unsigned short segment; --} bios32_indirect = { 0, __KERNEL_CS }; -+} bios32_indirect __read_only = { 0, __PCIBIOS_CS }; - - /* - * Returns the entry point for the given service, NULL on error - */ - --static unsigned long bios32_service(unsigned long service) -+static unsigned long __devinit bios32_service(unsigned long service) - { - unsigned char return_code; /* %al */ - unsigned long address; /* %ebx */ - unsigned long length; /* %ecx */ - unsigned long entry; /* %edx */ - unsigned long flags; -+ struct desc_struct d, *gdt; - - local_irq_save(flags); -- __asm__("lcall *(%%edi); cld" -+ -+ gdt = get_cpu_gdt_table(smp_processor_id()); -+ -+ pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x9B, 0xC); -+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S); -+ pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x93, 0xC); -+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S); -+ -+ __asm__("movw %w7, %%ds; lcall *(%%edi); push %%ss; pop %%ds; cld" - : "=a" (return_code), - "=b" (address), - "=c" (length), - "=d" (entry) - : "0" (service), - "1" (0), -- "D" (&bios32_indirect)); -+ "D" (&bios32_indirect), -+ "r"(__PCIBIOS_DS) -+ : "memory"); -+ -+ pax_open_kernel(); -+ gdt[GDT_ENTRY_PCIBIOS_CS].a = 0; -+ gdt[GDT_ENTRY_PCIBIOS_CS].b = 0; -+ gdt[GDT_ENTRY_PCIBIOS_DS].a = 0; -+ gdt[GDT_ENTRY_PCIBIOS_DS].b = 0; -+ pax_close_kernel(); -+ - local_irq_restore(flags); - - switch (return_code) { -- case 0: -- return address + entry; -- case 0x80: /* Not present */ -- printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service); -- return 0; -- default: /* Shouldn't happen */ -- printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n", -- service, return_code); -+ case 0: { -+ int cpu; -+ unsigned char flags; -+ -+ printk(KERN_INFO "bios32_service: base:%08lx length:%08lx entry:%08lx\n", address, length, entry); -+ if (address >= 0xFFFF0 || length > 0x100000 - address || length <= entry) { -+ printk(KERN_WARNING "bios32_service: not valid\n"); - return 0; -+ } -+ address = address + PAGE_OFFSET; -+ length += 16UL; /* some BIOSs underreport this... */ -+ flags = 4; -+ if (length >= 64*1024*1024) { -+ length >>= PAGE_SHIFT; -+ flags |= 8; -+ } -+ -+ for (cpu = 0; cpu < nr_cpu_ids; cpu++) { -+ gdt = get_cpu_gdt_table(cpu); -+ pack_descriptor(&d, address, length, 0x9b, flags); -+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S); -+ pack_descriptor(&d, address, length, 0x93, flags); -+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S); -+ } -+ return entry; -+ } -+ case 0x80: /* Not present */ -+ printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service); -+ return 0; -+ default: /* Shouldn't happen */ -+ printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n", -+ service, return_code); -+ return 0; - } - } - - static struct { - unsigned long address; - unsigned short segment; --} pci_indirect = { 0, __KERNEL_CS }; -+} pci_indirect __read_only = { 0, __PCIBIOS_CS }; - --static int pci_bios_present; -+static int pci_bios_present __read_only; - - static int __devinit check_pcibios(void) - { -@@ -131,11 +174,13 @@ static int __devinit check_pcibios(void) - unsigned long flags, pcibios_entry; - - if ((pcibios_entry = bios32_service(PCI_SERVICE))) { -- pci_indirect.address = pcibios_entry + PAGE_OFFSET; -+ pci_indirect.address = pcibios_entry; - - local_irq_save(flags); -- __asm__( -- "lcall *(%%edi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%edi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -144,7 +189,8 @@ static int __devinit check_pcibios(void) - "=b" (ebx), - "=c" (ecx) - : "1" (PCIBIOS_PCI_BIOS_PRESENT), -- "D" (&pci_indirect) -+ "D" (&pci_indirect), -+ "r" (__PCIBIOS_DS) - : "memory"); - local_irq_restore(flags); - -@@ -189,7 +235,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus, - - switch (len) { - case 1: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -198,7 +247,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus, - : "1" (PCIBIOS_READ_CONFIG_BYTE), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - /* - * Zero-extend the result beyond 8 bits, do not trust the - * BIOS having done it: -@@ -206,7 +256,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus, - *value &= 0xff; - break; - case 2: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -215,7 +268,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus, - : "1" (PCIBIOS_READ_CONFIG_WORD), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - /* - * Zero-extend the result beyond 16 bits, do not trust the - * BIOS having done it: -@@ -223,7 +277,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus, - *value &= 0xffff; - break; - case 4: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -232,7 +289,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus, - : "1" (PCIBIOS_READ_CONFIG_DWORD), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - break; - } - -@@ -256,7 +314,10 @@ static int pci_bios_write(unsigned int seg, unsigned int bus, - - switch (len) { - case 1: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -265,10 +326,14 @@ static int pci_bios_write(unsigned int seg, unsigned int bus, - "c" (value), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - break; - case 2: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -277,10 +342,14 @@ static int pci_bios_write(unsigned int seg, unsigned int bus, - "c" (value), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - break; - case 4: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -289,7 +358,8 @@ static int pci_bios_write(unsigned int seg, unsigned int bus, - "c" (value), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - break; - } - -@@ -394,10 +464,13 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void) - - DBG("PCI: Fetching IRQ routing table... "); - __asm__("push %%es\n\t" -+ "movw %w8, %%ds\n\t" - "push %%ds\n\t" - "pop %%es\n\t" -- "lcall *(%%esi); cld\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" - "pop %%es\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -408,7 +481,8 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void) - "1" (0), - "D" ((long) &opt), - "S" (&pci_indirect), -- "m" (opt) -+ "m" (opt), -+ "r" (__PCIBIOS_DS) - : "memory"); - DBG("OK ret=%d, size=%d, map=%x\n", ret, opt.size, map); - if (ret & 0xff00) -@@ -432,7 +506,10 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq) - { - int ret; - -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w5, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -440,7 +517,8 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq) - : "0" (PCIBIOS_SET_PCI_HW_INT), - "b" ((dev->bus->number << 8) | dev->devfn), - "c" ((irq << 8) | (pin + 10)), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - return !(ret & 0xff00); - } - EXPORT_SYMBOL(pcibios_set_irq_routing); -diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c -index 40e4469..1ab536e 100644 ---- a/arch/x86/platform/efi/efi_32.c -+++ b/arch/x86/platform/efi/efi_32.c -@@ -44,11 +44,22 @@ void efi_call_phys_prelog(void) - { - struct desc_ptr gdt_descr; - -+#ifdef CONFIG_PAX_KERNEXEC -+ struct desc_struct d; -+#endif -+ - local_irq_save(efi_rt_eflags); - - load_cr3(initial_page_table); - __flush_tlb_all(); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pack_descriptor(&d, 0, 0xFFFFF, 0x9B, 0xC); -+ write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_CS, &d, DESCTYPE_S); -+ pack_descriptor(&d, 0, 0xFFFFF, 0x93, 0xC); -+ write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_DS, &d, DESCTYPE_S); -+#endif -+ - gdt_descr.address = __pa(get_cpu_gdt_table(0)); - gdt_descr.size = GDT_SIZE - 1; - load_gdt(&gdt_descr); -@@ -58,6 +69,14 @@ void efi_call_phys_epilog(void) - { - struct desc_ptr gdt_descr; - -+#ifdef CONFIG_PAX_KERNEXEC -+ struct desc_struct d; -+ -+ memset(&d, 0, sizeof d); -+ write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_CS, &d, DESCTYPE_S); -+ write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_DS, &d, DESCTYPE_S); -+#endif -+ - gdt_descr.address = (unsigned long)get_cpu_gdt_table(0); - gdt_descr.size = GDT_SIZE - 1; - load_gdt(&gdt_descr); -diff --git a/arch/x86/platform/efi/efi_stub_32.S b/arch/x86/platform/efi/efi_stub_32.S -index fbe66e6..c5c0dd2 100644 ---- a/arch/x86/platform/efi/efi_stub_32.S -+++ b/arch/x86/platform/efi/efi_stub_32.S -@@ -6,7 +6,9 @@ - */ - - #include <linux/linkage.h> -+#include <linux/init.h> - #include <asm/page_types.h> -+#include <asm/segment.h> - - /* - * efi_call_phys(void *, ...) is a function with variable parameters. -@@ -20,7 +22,7 @@ - * service functions will comply with gcc calling convention, too. - */ - --.text -+__INIT - ENTRY(efi_call_phys) - /* - * 0. The function can only be called in Linux kernel. So CS has been -@@ -36,9 +38,11 @@ ENTRY(efi_call_phys) - * The mapping of lower virtual memory has been created in prelog and - * epilog. - */ -- movl $1f, %edx -- subl $__PAGE_OFFSET, %edx -- jmp *%edx -+ movl $(__KERNEXEC_EFI_DS), %edx -+ mov %edx, %ds -+ mov %edx, %es -+ mov %edx, %ss -+ ljmp $(__KERNEXEC_EFI_CS),$1f-__PAGE_OFFSET - 1: - - /* -@@ -47,14 +51,8 @@ ENTRY(efi_call_phys) - * parameter 2, ..., param n. To make things easy, we save the return - * address of efi_call_phys in a global variable. - */ -- popl %edx -- movl %edx, saved_return_addr -- /* get the function pointer into ECX*/ -- popl %ecx -- movl %ecx, efi_rt_function_ptr -- movl $2f, %edx -- subl $__PAGE_OFFSET, %edx -- pushl %edx -+ popl (saved_return_addr) -+ popl (efi_rt_function_ptr) - - /* - * 3. Clear PG bit in %CR0. -@@ -73,9 +71,8 @@ ENTRY(efi_call_phys) - /* - * 5. Call the physical function. - */ -- jmp *%ecx -+ call *(efi_rt_function_ptr-__PAGE_OFFSET) - --2: - /* - * 6. After EFI runtime service returns, control will return to - * following instruction. We'd better readjust stack pointer first. -@@ -88,35 +85,32 @@ ENTRY(efi_call_phys) - movl %cr0, %edx - orl $0x80000000, %edx - movl %edx, %cr0 -- jmp 1f --1: -+ - /* - * 8. Now restore the virtual mode from flat mode by - * adding EIP with PAGE_OFFSET. - */ -- movl $1f, %edx -- jmp *%edx -+ ljmp $(__KERNEL_CS),$1f+__PAGE_OFFSET - 1: -+ movl $(__KERNEL_DS), %edx -+ mov %edx, %ds -+ mov %edx, %es -+ mov %edx, %ss - - /* - * 9. Balance the stack. And because EAX contain the return value, - * we'd better not clobber it. - */ -- leal efi_rt_function_ptr, %edx -- movl (%edx), %ecx -- pushl %ecx -+ pushl (efi_rt_function_ptr) - - /* -- * 10. Push the saved return address onto the stack and return. -+ * 10. Return to the saved return address. - */ -- leal saved_return_addr, %edx -- movl (%edx), %ecx -- pushl %ecx -- ret -+ jmpl *(saved_return_addr) - ENDPROC(efi_call_phys) - .previous - --.data -+__INITDATA - saved_return_addr: - .long 0 - efi_rt_function_ptr: -diff --git a/arch/x86/platform/efi/efi_stub_64.S b/arch/x86/platform/efi/efi_stub_64.S -index 4c07cca..2c8427d 100644 ---- a/arch/x86/platform/efi/efi_stub_64.S -+++ b/arch/x86/platform/efi/efi_stub_64.S -@@ -7,6 +7,7 @@ - */ - - #include <linux/linkage.h> -+#include <asm/alternative-asm.h> - - #define SAVE_XMM \ - mov %rsp, %rax; \ -@@ -40,6 +41,7 @@ ENTRY(efi_call0) - call *%rdi - addq $32, %rsp - RESTORE_XMM -+ pax_force_retaddr 0, 1 - ret - ENDPROC(efi_call0) - -@@ -50,6 +52,7 @@ ENTRY(efi_call1) - call *%rdi - addq $32, %rsp - RESTORE_XMM -+ pax_force_retaddr 0, 1 - ret - ENDPROC(efi_call1) - -@@ -60,6 +63,7 @@ ENTRY(efi_call2) - call *%rdi - addq $32, %rsp - RESTORE_XMM -+ pax_force_retaddr 0, 1 - ret - ENDPROC(efi_call2) - -@@ -71,6 +75,7 @@ ENTRY(efi_call3) - call *%rdi - addq $32, %rsp - RESTORE_XMM -+ pax_force_retaddr 0, 1 - ret - ENDPROC(efi_call3) - -@@ -83,6 +88,7 @@ ENTRY(efi_call4) - call *%rdi - addq $32, %rsp - RESTORE_XMM -+ pax_force_retaddr 0, 1 - ret - ENDPROC(efi_call4) - -@@ -96,6 +102,7 @@ ENTRY(efi_call5) - call *%rdi - addq $48, %rsp - RESTORE_XMM -+ pax_force_retaddr 0, 1 - ret - ENDPROC(efi_call5) - -@@ -112,5 +119,6 @@ ENTRY(efi_call6) - call *%rdi - addq $48, %rsp - RESTORE_XMM -+ pax_force_retaddr 0, 1 - ret - ENDPROC(efi_call6) -diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c -index e31bcd8..f12dc46 100644 ---- a/arch/x86/platform/mrst/mrst.c -+++ b/arch/x86/platform/mrst/mrst.c -@@ -78,13 +78,15 @@ struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX]; - EXPORT_SYMBOL_GPL(sfi_mrtc_array); - int sfi_mrtc_num; - --static void mrst_power_off(void) -+static __noreturn void mrst_power_off(void) - { -+ BUG(); - } - --static void mrst_reboot(void) -+static __noreturn void mrst_reboot(void) - { - intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0); -+ BUG(); - } - - /* parse all the mtimer info to a static mtimer array */ -diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c -index 218cdb1..fd55c08 100644 ---- a/arch/x86/power/cpu.c -+++ b/arch/x86/power/cpu.c -@@ -132,7 +132,7 @@ static void do_fpu_end(void) - static void fix_processor_context(void) - { - int cpu = smp_processor_id(); -- struct tss_struct *t = &per_cpu(init_tss, cpu); -+ struct tss_struct *t = init_tss + cpu; - - set_tss_desc(cpu, t); /* - * This just modifies memory; should not be -@@ -142,7 +142,9 @@ static void fix_processor_context(void) - */ - - #ifdef CONFIG_X86_64 -+ pax_open_kernel(); - get_cpu_gdt_table(cpu)[GDT_ENTRY_TSS].type = 9; -+ pax_close_kernel(); - - syscall_init(); /* This sets MSR_*STAR and related */ - #endif -diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c -index b685296..e00eb65 100644 ---- a/arch/x86/tools/relocs.c -+++ b/arch/x86/tools/relocs.c -@@ -12,10 +12,13 @@ - #include <regex.h> - #include <tools/le_byteshift.h> - -+#include "../../../include/generated/autoconf.h" -+ - static void die(char *fmt, ...); - - #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) - static Elf32_Ehdr ehdr; -+static Elf32_Phdr *phdr; - static unsigned long reloc_count, reloc_idx; - static unsigned long *relocs; - static unsigned long reloc16_count, reloc16_idx; -@@ -323,9 +326,39 @@ static void read_ehdr(FILE *fp) - } - } - -+static void read_phdrs(FILE *fp) -+{ -+ unsigned int i; -+ -+ phdr = calloc(ehdr.e_phnum, sizeof(Elf32_Phdr)); -+ if (!phdr) { -+ die("Unable to allocate %d program headers\n", -+ ehdr.e_phnum); -+ } -+ if (fseek(fp, ehdr.e_phoff, SEEK_SET) < 0) { -+ die("Seek to %d failed: %s\n", -+ ehdr.e_phoff, strerror(errno)); -+ } -+ if (fread(phdr, sizeof(*phdr), ehdr.e_phnum, fp) != ehdr.e_phnum) { -+ die("Cannot read ELF program headers: %s\n", -+ strerror(errno)); -+ } -+ for(i = 0; i < ehdr.e_phnum; i++) { -+ phdr[i].p_type = elf32_to_cpu(phdr[i].p_type); -+ phdr[i].p_offset = elf32_to_cpu(phdr[i].p_offset); -+ phdr[i].p_vaddr = elf32_to_cpu(phdr[i].p_vaddr); -+ phdr[i].p_paddr = elf32_to_cpu(phdr[i].p_paddr); -+ phdr[i].p_filesz = elf32_to_cpu(phdr[i].p_filesz); -+ phdr[i].p_memsz = elf32_to_cpu(phdr[i].p_memsz); -+ phdr[i].p_flags = elf32_to_cpu(phdr[i].p_flags); -+ phdr[i].p_align = elf32_to_cpu(phdr[i].p_align); -+ } -+ -+} -+ - static void read_shdrs(FILE *fp) - { -- int i; -+ unsigned int i; - Elf32_Shdr shdr; - - secs = calloc(ehdr.e_shnum, sizeof(struct section)); -@@ -360,7 +393,7 @@ static void read_shdrs(FILE *fp) - - static void read_strtabs(FILE *fp) - { -- int i; -+ unsigned int i; - for (i = 0; i < ehdr.e_shnum; i++) { - struct section *sec = &secs[i]; - if (sec->shdr.sh_type != SHT_STRTAB) { -@@ -385,7 +418,7 @@ static void read_strtabs(FILE *fp) - - static void read_symtabs(FILE *fp) - { -- int i,j; -+ unsigned int i,j; - for (i = 0; i < ehdr.e_shnum; i++) { - struct section *sec = &secs[i]; - if (sec->shdr.sh_type != SHT_SYMTAB) { -@@ -418,7 +451,9 @@ static void read_symtabs(FILE *fp) - - static void read_relocs(FILE *fp) - { -- int i,j; -+ unsigned int i,j; -+ uint32_t base; -+ - for (i = 0; i < ehdr.e_shnum; i++) { - struct section *sec = &secs[i]; - if (sec->shdr.sh_type != SHT_REL) { -@@ -438,9 +473,22 @@ static void read_relocs(FILE *fp) - die("Cannot read symbol table: %s\n", - strerror(errno)); - } -+ base = 0; -+ -+#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_X86_32) -+ for (j = 0; j < ehdr.e_phnum; j++) { -+ if (phdr[j].p_type != PT_LOAD ) -+ continue; -+ if (secs[sec->shdr.sh_info].shdr.sh_offset < phdr[j].p_offset || secs[sec->shdr.sh_info].shdr.sh_offset >= phdr[j].p_offset + phdr[j].p_filesz) -+ continue; -+ base = CONFIG_PAGE_OFFSET + phdr[j].p_paddr - phdr[j].p_vaddr; -+ break; -+ } -+#endif -+ - for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Rel); j++) { - Elf32_Rel *rel = &sec->reltab[j]; -- rel->r_offset = elf32_to_cpu(rel->r_offset); -+ rel->r_offset = elf32_to_cpu(rel->r_offset) + base; - rel->r_info = elf32_to_cpu(rel->r_info); - } - } -@@ -449,13 +497,13 @@ static void read_relocs(FILE *fp) - - static void print_absolute_symbols(void) - { -- int i; -+ unsigned int i; - printf("Absolute symbols\n"); - printf(" Num: Value Size Type Bind Visibility Name\n"); - for (i = 0; i < ehdr.e_shnum; i++) { - struct section *sec = &secs[i]; - char *sym_strtab; -- int j; -+ unsigned int j; - - if (sec->shdr.sh_type != SHT_SYMTAB) { - continue; -@@ -482,14 +530,14 @@ static void print_absolute_symbols(void) - - static void print_absolute_relocs(void) - { -- int i, printed = 0; -+ unsigned int i, printed = 0; - - for (i = 0; i < ehdr.e_shnum; i++) { - struct section *sec = &secs[i]; - struct section *sec_applies, *sec_symtab; - char *sym_strtab; - Elf32_Sym *sh_symtab; -- int j; -+ unsigned int j; - if (sec->shdr.sh_type != SHT_REL) { - continue; - } -@@ -551,13 +599,13 @@ static void print_absolute_relocs(void) - static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym), - int use_real_mode) - { -- int i; -+ unsigned int i; - /* Walk through the relocations */ - for (i = 0; i < ehdr.e_shnum; i++) { - char *sym_strtab; - Elf32_Sym *sh_symtab; - struct section *sec_applies, *sec_symtab; -- int j; -+ unsigned int j; - struct section *sec = &secs[i]; - - if (sec->shdr.sh_type != SHT_REL) { -@@ -581,6 +629,22 @@ static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym), - sym = &sh_symtab[ELF32_R_SYM(rel->r_info)]; - r_type = ELF32_R_TYPE(rel->r_info); - -+ /* Don't relocate actual per-cpu variables, they are absolute indices, not addresses */ -+ if (!strcmp(sec_name(sym->st_shndx), ".data..percpu") && strcmp(sym_name(sym_strtab, sym), "__per_cpu_load")) -+ continue; -+ -+#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_X86_32) -+ /* Don't relocate actual code, they are relocated implicitly by the base address of KERNEL_CS */ -+ if (!strcmp(sec_name(sym->st_shndx), ".module.text") && !strcmp(sym_name(sym_strtab, sym), "_etext")) -+ continue; -+ if (!strcmp(sec_name(sym->st_shndx), ".init.text")) -+ continue; -+ if (!strcmp(sec_name(sym->st_shndx), ".exit.text")) -+ continue; -+ if (!strcmp(sec_name(sym->st_shndx), ".text") && strcmp(sym_name(sym_strtab, sym), "__LOAD_PHYSICAL_ADDR")) -+ continue; -+#endif -+ - shn_abs = sym->st_shndx == SHN_ABS; - - switch (r_type) { -@@ -674,7 +738,7 @@ static int write32(unsigned int v, FILE *f) - - static void emit_relocs(int as_text, int use_real_mode) - { -- int i; -+ unsigned int i; - /* Count how many relocations I have and allocate space for them. */ - reloc_count = 0; - walk_relocs(count_reloc, use_real_mode); -@@ -801,6 +865,7 @@ int main(int argc, char **argv) - fname, strerror(errno)); - } - read_ehdr(fp); -+ read_phdrs(fp); - read_shdrs(fp); - read_strtabs(fp); - read_symtabs(fp); -diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile -index fd14be1..e3c79c0 100644 ---- a/arch/x86/vdso/Makefile -+++ b/arch/x86/vdso/Makefile -@@ -181,7 +181,7 @@ quiet_cmd_vdso = VDSO $@ - -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^) && \ - sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@' - --VDSO_LDFLAGS = -fPIC -shared $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) -+VDSO_LDFLAGS = -fPIC -shared -Wl,--no-undefined $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) - GCOV_PROFILE := n - - # -diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c -index 66e6d93..587f435 100644 ---- a/arch/x86/vdso/vdso32-setup.c -+++ b/arch/x86/vdso/vdso32-setup.c -@@ -25,6 +25,7 @@ - #include <asm/tlbflush.h> - #include <asm/vdso.h> - #include <asm/proto.h> -+#include <asm/mman.h> - - enum { - VDSO_DISABLED = 0, -@@ -226,7 +227,7 @@ static inline void map_compat_vdso(int map) - void enable_sep_cpu(void) - { - int cpu = get_cpu(); -- struct tss_struct *tss = &per_cpu(init_tss, cpu); -+ struct tss_struct *tss = init_tss + cpu; - - if (!boot_cpu_has(X86_FEATURE_SEP)) { - put_cpu(); -@@ -249,7 +250,7 @@ static int __init gate_vma_init(void) - gate_vma.vm_start = FIXADDR_USER_START; - gate_vma.vm_end = FIXADDR_USER_END; - gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC; -- gate_vma.vm_page_prot = __P101; -+ gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags); - - return 0; - } -@@ -330,14 +331,14 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) - if (compat) - addr = VDSO_HIGH_BASE; - else { -- addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0); -+ addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, MAP_EXECUTABLE); - if (IS_ERR_VALUE(addr)) { - ret = addr; - goto up_fail; - } - } - -- current->mm->context.vdso = (void *)addr; -+ current->mm->context.vdso = addr; - - if (compat_uses_vma || !compat) { - /* -@@ -353,11 +354,11 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) - } - - current_thread_info()->sysenter_return = -- VDSO32_SYMBOL(addr, SYSENTER_RETURN); -+ (__force void __user *)VDSO32_SYMBOL(addr, SYSENTER_RETURN); - - up_fail: - if (ret) -- current->mm->context.vdso = NULL; -+ current->mm->context.vdso = 0; - - up_write(&mm->mmap_sem); - -@@ -404,8 +405,14 @@ __initcall(ia32_binfmt_init); - - const char *arch_vma_name(struct vm_area_struct *vma) - { -- if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso) -+ if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso) - return "[vdso]"; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma->vm_mm && vma->vm_mirror && vma->vm_mirror->vm_start == vma->vm_mm->context.vdso) -+ return "[vdso]"; -+#endif -+ - return NULL; - } - -@@ -415,7 +422,7 @@ struct vm_area_struct *get_gate_vma(struct mm_struct *mm) - * Check to see if the corresponding task was created in compat vdso - * mode. - */ -- if (mm && mm->context.vdso == (void *)VDSO_HIGH_BASE) -+ if (mm && mm->context.vdso == VDSO_HIGH_BASE) - return &gate_vma; - return NULL; - } -diff --git a/arch/x86/vdso/vma.c b/arch/x86/vdso/vma.c -index 00aaf04..4a26505 100644 ---- a/arch/x86/vdso/vma.c -+++ b/arch/x86/vdso/vma.c -@@ -16,8 +16,6 @@ - #include <asm/vdso.h> - #include <asm/page.h> - --unsigned int __read_mostly vdso_enabled = 1; -- - extern char vdso_start[], vdso_end[]; - extern unsigned short vdso_sync_cpuid; - -@@ -141,7 +139,6 @@ static unsigned long vdso_addr(unsigned long start, unsigned len) - * unaligned here as a result of stack start randomization. - */ - addr = PAGE_ALIGN(addr); -- addr = align_addr(addr, NULL, ALIGN_VDSO); - - return addr; - } -@@ -154,30 +151,31 @@ static int setup_additional_pages(struct linux_binprm *bprm, - unsigned size) - { - struct mm_struct *mm = current->mm; -- unsigned long addr; -+ unsigned long addr = 0; - int ret; - -- if (!vdso_enabled) -- return 0; -- - down_write(&mm->mmap_sem); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - addr = vdso_addr(mm->start_stack, size); -+ addr = align_addr(addr, NULL, ALIGN_VDSO); - addr = get_unmapped_area(NULL, addr, size, 0, 0); - if (IS_ERR_VALUE(addr)) { - ret = addr; - goto up_fail; - } - -- current->mm->context.vdso = (void *)addr; -+ mm->context.vdso = addr; - - ret = install_special_mapping(mm, addr, size, - VM_READ|VM_EXEC| - VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC, - pages); -- if (ret) { -- current->mm->context.vdso = NULL; -- goto up_fail; -- } -+ if (ret) -+ mm->context.vdso = 0; - - up_fail: - up_write(&mm->mmap_sem); -@@ -197,10 +195,3 @@ int x32_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) - vdsox32_size); - } - #endif -- --static __init int vdso_setup(char *s) --{ -- vdso_enabled = simple_strtoul(s, NULL, 0); -- return 0; --} --__setup("vdso=", vdso_setup); -diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c -index 40edfc3..b4d80ac 100644 ---- a/arch/x86/xen/enlighten.c -+++ b/arch/x86/xen/enlighten.c -@@ -95,8 +95,6 @@ EXPORT_SYMBOL_GPL(xen_start_info); - - struct shared_info xen_dummy_shared_info; - --void *xen_initial_gdt; -- - RESERVE_BRK(shared_info_page_brk, PAGE_SIZE); - __read_mostly int xen_have_vector_callback; - EXPORT_SYMBOL_GPL(xen_have_vector_callback); -@@ -1165,30 +1163,30 @@ static const struct pv_apic_ops xen_apic_ops __initconst = { - #endif - }; - --static void xen_reboot(int reason) -+static __noreturn void xen_reboot(int reason) - { - struct sched_shutdown r = { .reason = reason }; - -- if (HYPERVISOR_sched_op(SCHEDOP_shutdown, &r)) -- BUG(); -+ HYPERVISOR_sched_op(SCHEDOP_shutdown, &r); -+ BUG(); - } - --static void xen_restart(char *msg) -+static __noreturn void xen_restart(char *msg) - { - xen_reboot(SHUTDOWN_reboot); - } - --static void xen_emergency_restart(void) -+static __noreturn void xen_emergency_restart(void) - { - xen_reboot(SHUTDOWN_reboot); - } - --static void xen_machine_halt(void) -+static __noreturn void xen_machine_halt(void) - { - xen_reboot(SHUTDOWN_poweroff); - } - --static void xen_machine_power_off(void) -+static __noreturn void xen_machine_power_off(void) - { - if (pm_power_off) - pm_power_off(); -@@ -1291,7 +1289,17 @@ asmlinkage void __init xen_start_kernel(void) - __userpte_alloc_gfp &= ~__GFP_HIGHMEM; - - /* Work out if we support NX */ -- x86_configure_nx(); -+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) -+ if ((cpuid_eax(0x80000000) & 0xffff0000) == 0x80000000 && -+ (cpuid_edx(0x80000001) & (1U << (X86_FEATURE_NX & 31)))) { -+ unsigned l, h; -+ -+ __supported_pte_mask |= _PAGE_NX; -+ rdmsr(MSR_EFER, l, h); -+ l |= EFER_NX; -+ wrmsr(MSR_EFER, l, h); -+ } -+#endif - - xen_setup_features(); - -@@ -1322,13 +1330,6 @@ asmlinkage void __init xen_start_kernel(void) - - machine_ops = xen_machine_ops; - -- /* -- * The only reliable way to retain the initial address of the -- * percpu gdt_page is to remember it here, so we can go and -- * mark it RW later, when the initial percpu area is freed. -- */ -- xen_initial_gdt = &per_cpu(gdt_page, 0); -- - xen_smp_init(); - - #ifdef CONFIG_ACPI_NUMA -diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c -index 69f5857..0699dc5 100644 ---- a/arch/x86/xen/mmu.c -+++ b/arch/x86/xen/mmu.c -@@ -1738,6 +1738,9 @@ pgd_t * __init xen_setup_kernel_pagetable(pgd_t *pgd, - convert_pfn_mfn(init_level4_pgt); - convert_pfn_mfn(level3_ident_pgt); - convert_pfn_mfn(level3_kernel_pgt); -+ convert_pfn_mfn(level3_vmalloc_start_pgt); -+ convert_pfn_mfn(level3_vmalloc_end_pgt); -+ convert_pfn_mfn(level3_vmemmap_pgt); - - l3 = m2v(pgd[pgd_index(__START_KERNEL_map)].pgd); - l2 = m2v(l3[pud_index(__START_KERNEL_map)].pud); -@@ -1756,7 +1759,11 @@ pgd_t * __init xen_setup_kernel_pagetable(pgd_t *pgd, - set_page_prot(init_level4_pgt, PAGE_KERNEL_RO); - set_page_prot(level3_ident_pgt, PAGE_KERNEL_RO); - set_page_prot(level3_kernel_pgt, PAGE_KERNEL_RO); -+ set_page_prot(level3_vmalloc_start_pgt, PAGE_KERNEL_RO); -+ set_page_prot(level3_vmalloc_end_pgt, PAGE_KERNEL_RO); -+ set_page_prot(level3_vmemmap_pgt, PAGE_KERNEL_RO); - set_page_prot(level3_user_vsyscall, PAGE_KERNEL_RO); -+ set_page_prot(level2_vmemmap_pgt, PAGE_KERNEL_RO); - set_page_prot(level2_kernel_pgt, PAGE_KERNEL_RO); - set_page_prot(level2_fixmap_pgt, PAGE_KERNEL_RO); - -@@ -1964,6 +1971,7 @@ static void __init xen_post_allocator_init(void) - pv_mmu_ops.set_pud = xen_set_pud; - #if PAGETABLE_LEVELS == 4 - pv_mmu_ops.set_pgd = xen_set_pgd; -+ pv_mmu_ops.set_pgd_batched = xen_set_pgd; - #endif - - /* This will work as long as patching hasn't happened yet -@@ -2045,6 +2053,7 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = { - .pud_val = PV_CALLEE_SAVE(xen_pud_val), - .make_pud = PV_CALLEE_SAVE(xen_make_pud), - .set_pgd = xen_set_pgd_hyper, -+ .set_pgd_batched = xen_set_pgd_hyper, - - .alloc_pud = xen_alloc_pmd_init, - .release_pud = xen_release_pmd_init, -diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c -index 0503c0c..ceb2d16 100644 ---- a/arch/x86/xen/smp.c -+++ b/arch/x86/xen/smp.c -@@ -215,11 +215,6 @@ static void __init xen_smp_prepare_boot_cpu(void) - { - BUG_ON(smp_processor_id() != 0); - native_smp_prepare_boot_cpu(); -- -- /* We've switched to the "real" per-cpu gdt, so make sure the -- old memory can be recycled */ -- make_lowmem_page_readwrite(xen_initial_gdt); -- - xen_filter_cpu_maps(); - xen_setup_vcpu_info_placement(); - } -@@ -296,12 +291,12 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle) - gdt = get_cpu_gdt_table(cpu); - - ctxt->flags = VGCF_IN_KERNEL; -- ctxt->user_regs.ds = __USER_DS; -- ctxt->user_regs.es = __USER_DS; -+ ctxt->user_regs.ds = __KERNEL_DS; -+ ctxt->user_regs.es = __KERNEL_DS; - ctxt->user_regs.ss = __KERNEL_DS; - #ifdef CONFIG_X86_32 - ctxt->user_regs.fs = __KERNEL_PERCPU; -- ctxt->user_regs.gs = __KERNEL_STACK_CANARY; -+ savesegment(gs, ctxt->user_regs.gs); - #else - ctxt->gs_base_kernel = per_cpu_offset(cpu); - #endif -@@ -352,13 +347,12 @@ static int __cpuinit xen_cpu_up(unsigned int cpu) - int rc; - - per_cpu(current_task, cpu) = idle; -+ per_cpu(current_tinfo, cpu) = &idle->tinfo; - #ifdef CONFIG_X86_32 - irq_ctx_init(cpu); - #else - clear_tsk_thread_flag(idle, TIF_FORK); -- per_cpu(kernel_stack, cpu) = -- (unsigned long)task_stack_page(idle) - -- KERNEL_STACK_OFFSET + THREAD_SIZE; -+ per_cpu(kernel_stack, cpu) = (unsigned long)task_stack_page(idle) - 16 + THREAD_SIZE; - #endif - xen_setup_runstate_info(cpu); - xen_setup_timer(cpu); -diff --git a/arch/x86/xen/xen-asm_32.S b/arch/x86/xen/xen-asm_32.S -index b040b0e..8cc4fe0 100644 ---- a/arch/x86/xen/xen-asm_32.S -+++ b/arch/x86/xen/xen-asm_32.S -@@ -83,14 +83,14 @@ ENTRY(xen_iret) - ESP_OFFSET=4 # bytes pushed onto stack - - /* -- * Store vcpu_info pointer for easy access. Do it this way to -- * avoid having to reload %fs -+ * Store vcpu_info pointer for easy access. - */ - #ifdef CONFIG_SMP -- GET_THREAD_INFO(%eax) -- movl TI_cpu(%eax), %eax -- movl __per_cpu_offset(,%eax,4), %eax -- mov xen_vcpu(%eax), %eax -+ push %fs -+ mov $(__KERNEL_PERCPU), %eax -+ mov %eax, %fs -+ mov PER_CPU_VAR(xen_vcpu), %eax -+ pop %fs - #else - movl xen_vcpu, %eax - #endif -diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S -index aaa7291..3f77960 100644 ---- a/arch/x86/xen/xen-head.S -+++ b/arch/x86/xen/xen-head.S -@@ -19,6 +19,17 @@ ENTRY(startup_xen) - #ifdef CONFIG_X86_32 - mov %esi,xen_start_info - mov $init_thread_union+THREAD_SIZE,%esp -+#ifdef CONFIG_SMP -+ movl $cpu_gdt_table,%edi -+ movl $__per_cpu_load,%eax -+ movw %ax,__KERNEL_PERCPU + 2(%edi) -+ rorl $16,%eax -+ movb %al,__KERNEL_PERCPU + 4(%edi) -+ movb %ah,__KERNEL_PERCPU + 7(%edi) -+ movl $__per_cpu_end - 1,%eax -+ subl $__per_cpu_start,%eax -+ movw %ax,__KERNEL_PERCPU + 0(%edi) -+#endif - #else - mov %rsi,xen_start_info - mov $init_thread_union+THREAD_SIZE,%rsp -diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h -index b095739..8c17bcd 100644 ---- a/arch/x86/xen/xen-ops.h -+++ b/arch/x86/xen/xen-ops.h -@@ -10,8 +10,6 @@ - extern const char xen_hypervisor_callback[]; - extern const char xen_failsafe_callback[]; - --extern void *xen_initial_gdt; -- - struct trap_info; - void xen_copy_trap_info(struct trap_info *traps); - -diff --git a/arch/xtensa/variants/dc232b/include/variant/core.h b/arch/xtensa/variants/dc232b/include/variant/core.h -index 525bd3d..ef888b1 100644 ---- a/arch/xtensa/variants/dc232b/include/variant/core.h -+++ b/arch/xtensa/variants/dc232b/include/variant/core.h -@@ -119,9 +119,9 @@ - ----------------------------------------------------------------------*/ - - #define XCHAL_ICACHE_LINESIZE 32 /* I-cache line size in bytes */ --#define XCHAL_DCACHE_LINESIZE 32 /* D-cache line size in bytes */ - #define XCHAL_ICACHE_LINEWIDTH 5 /* log2(I line size in bytes) */ - #define XCHAL_DCACHE_LINEWIDTH 5 /* log2(D line size in bytes) */ -+#define XCHAL_DCACHE_LINESIZE (_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH) /* D-cache line size in bytes */ - - #define XCHAL_ICACHE_SIZE 16384 /* I-cache size in bytes or 0 */ - #define XCHAL_DCACHE_SIZE 16384 /* D-cache size in bytes or 0 */ -diff --git a/arch/xtensa/variants/fsf/include/variant/core.h b/arch/xtensa/variants/fsf/include/variant/core.h -index 2f33760..835e50a 100644 ---- a/arch/xtensa/variants/fsf/include/variant/core.h -+++ b/arch/xtensa/variants/fsf/include/variant/core.h -@@ -11,6 +11,7 @@ - #ifndef _XTENSA_CORE_H - #define _XTENSA_CORE_H - -+#include <linux/const.h> - - /**************************************************************************** - Parameters Useful for Any Code, USER or PRIVILEGED -@@ -112,9 +113,9 @@ - ----------------------------------------------------------------------*/ - - #define XCHAL_ICACHE_LINESIZE 16 /* I-cache line size in bytes */ --#define XCHAL_DCACHE_LINESIZE 16 /* D-cache line size in bytes */ - #define XCHAL_ICACHE_LINEWIDTH 4 /* log2(I line size in bytes) */ - #define XCHAL_DCACHE_LINEWIDTH 4 /* log2(D line size in bytes) */ -+#define XCHAL_DCACHE_LINESIZE (_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH) /* D-cache line size in bytes */ - - #define XCHAL_ICACHE_SIZE 8192 /* I-cache size in bytes or 0 */ - #define XCHAL_DCACHE_SIZE 8192 /* D-cache size in bytes or 0 */ -diff --git a/arch/xtensa/variants/s6000/include/variant/core.h b/arch/xtensa/variants/s6000/include/variant/core.h -index af00795..2bb8105 100644 ---- a/arch/xtensa/variants/s6000/include/variant/core.h -+++ b/arch/xtensa/variants/s6000/include/variant/core.h -@@ -11,6 +11,7 @@ - #ifndef _XTENSA_CORE_CONFIGURATION_H - #define _XTENSA_CORE_CONFIGURATION_H - -+#include <linux/const.h> - - /**************************************************************************** - Parameters Useful for Any Code, USER or PRIVILEGED -@@ -118,9 +119,9 @@ - ----------------------------------------------------------------------*/ - - #define XCHAL_ICACHE_LINESIZE 16 /* I-cache line size in bytes */ --#define XCHAL_DCACHE_LINESIZE 16 /* D-cache line size in bytes */ - #define XCHAL_ICACHE_LINEWIDTH 4 /* log2(I line size in bytes) */ - #define XCHAL_DCACHE_LINEWIDTH 4 /* log2(D line size in bytes) */ -+#define XCHAL_DCACHE_LINESIZE (_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH) /* D-cache line size in bytes */ - - #define XCHAL_ICACHE_SIZE 32768 /* I-cache size in bytes or 0 */ - #define XCHAL_DCACHE_SIZE 32768 /* D-cache size in bytes or 0 */ -diff --git a/block/blk-iopoll.c b/block/blk-iopoll.c -index 58916af..9cb880b 100644 ---- a/block/blk-iopoll.c -+++ b/block/blk-iopoll.c -@@ -77,7 +77,7 @@ void blk_iopoll_complete(struct blk_iopoll *iopoll) - } - EXPORT_SYMBOL(blk_iopoll_complete); - --static void blk_iopoll_softirq(struct softirq_action *h) -+static void blk_iopoll_softirq(void) - { - struct list_head *list = &__get_cpu_var(blk_cpu_iopoll); - int rearm = 0, budget = blk_iopoll_budget; -diff --git a/block/blk-map.c b/block/blk-map.c -index 623e1cd..ca1e109 100644 ---- a/block/blk-map.c -+++ b/block/blk-map.c -@@ -302,7 +302,7 @@ int blk_rq_map_kern(struct request_queue *q, struct request *rq, void *kbuf, - if (!len || !kbuf) - return -EINVAL; - -- do_copy = !blk_rq_aligned(q, addr, len) || object_is_on_stack(kbuf); -+ do_copy = !blk_rq_aligned(q, addr, len) || object_starts_on_stack(kbuf); - if (do_copy) - bio = bio_copy_kern(q, kbuf, len, gfp_mask, reading); - else -diff --git a/block/blk-softirq.c b/block/blk-softirq.c -index 467c8de..4bddc6d 100644 ---- a/block/blk-softirq.c -+++ b/block/blk-softirq.c -@@ -18,7 +18,7 @@ static DEFINE_PER_CPU(struct list_head, blk_cpu_done); - * Softirq action handler - move entries to local list and loop over them - * while passing them to the queue registered handler. - */ --static void blk_done_softirq(struct softirq_action *h) -+static void blk_done_softirq(void) - { - struct list_head *cpu_list, local_list; - -diff --git a/block/bsg.c b/block/bsg.c -index ff64ae3..593560c 100644 ---- a/block/bsg.c -+++ b/block/bsg.c -@@ -176,16 +176,24 @@ static int blk_fill_sgv4_hdr_rq(struct request_queue *q, struct request *rq, - struct sg_io_v4 *hdr, struct bsg_device *bd, - fmode_t has_write_perm) - { -+ unsigned char tmpcmd[sizeof(rq->__cmd)]; -+ unsigned char *cmdptr; -+ - if (hdr->request_len > BLK_MAX_CDB) { - rq->cmd = kzalloc(hdr->request_len, GFP_KERNEL); - if (!rq->cmd) - return -ENOMEM; -- } -+ cmdptr = rq->cmd; -+ } else -+ cmdptr = tmpcmd; - -- if (copy_from_user(rq->cmd, (void __user *)(unsigned long)hdr->request, -+ if (copy_from_user(cmdptr, (void __user *)(unsigned long)hdr->request, - hdr->request_len)) - return -EFAULT; - -+ if (cmdptr != rq->cmd) -+ memcpy(rq->cmd, cmdptr, hdr->request_len); -+ - if (hdr->subprotocol == BSG_SUB_PROTOCOL_SCSI_CMD) { - if (blk_verify_command(rq->cmd, has_write_perm)) - return -EPERM; -diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c -index 7c668c8..db3521c 100644 ---- a/block/compat_ioctl.c -+++ b/block/compat_ioctl.c -@@ -340,7 +340,7 @@ static int compat_fd_ioctl(struct block_device *bdev, fmode_t mode, - err |= __get_user(f->spec1, &uf->spec1); - err |= __get_user(f->fmt_gap, &uf->fmt_gap); - err |= __get_user(name, &uf->name); -- f->name = compat_ptr(name); -+ f->name = (void __force_kernel *)compat_ptr(name); - if (err) { - err = -EFAULT; - goto out; -diff --git a/block/partitions/efi.c b/block/partitions/efi.c -index 6296b40..417c00f 100644 ---- a/block/partitions/efi.c -+++ b/block/partitions/efi.c -@@ -234,14 +234,14 @@ static gpt_entry *alloc_read_gpt_entries(struct parsed_partitions *state, - if (!gpt) - return NULL; - -+ if (!le32_to_cpu(gpt->num_partition_entries)) -+ return NULL; -+ pte = kcalloc(le32_to_cpu(gpt->num_partition_entries), le32_to_cpu(gpt->sizeof_partition_entry), GFP_KERNEL); -+ if (!pte) -+ return NULL; -+ - count = le32_to_cpu(gpt->num_partition_entries) * - le32_to_cpu(gpt->sizeof_partition_entry); -- if (!count) -- return NULL; -- pte = kzalloc(count, GFP_KERNEL); -- if (!pte) -- return NULL; -- - if (read_lba(state, le64_to_cpu(gpt->partition_entry_lba), - (u8 *) pte, - count) < count) { -diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c -index 260fa80..e8f3caf 100644 ---- a/block/scsi_ioctl.c -+++ b/block/scsi_ioctl.c -@@ -223,8 +223,20 @@ EXPORT_SYMBOL(blk_verify_command); - static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq, - struct sg_io_hdr *hdr, fmode_t mode) - { -- if (copy_from_user(rq->cmd, hdr->cmdp, hdr->cmd_len)) -+ unsigned char tmpcmd[sizeof(rq->__cmd)]; -+ unsigned char *cmdptr; -+ -+ if (rq->cmd != rq->__cmd) -+ cmdptr = rq->cmd; -+ else -+ cmdptr = tmpcmd; -+ -+ if (copy_from_user(cmdptr, hdr->cmdp, hdr->cmd_len)) - return -EFAULT; -+ -+ if (cmdptr != rq->cmd) -+ memcpy(rq->cmd, cmdptr, hdr->cmd_len); -+ - if (blk_verify_command(rq->cmd, mode & FMODE_WRITE)) - return -EPERM; - -@@ -433,6 +445,8 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode, - int err; - unsigned int in_len, out_len, bytes, opcode, cmdlen; - char *buffer = NULL, sense[SCSI_SENSE_BUFFERSIZE]; -+ unsigned char tmpcmd[sizeof(rq->__cmd)]; -+ unsigned char *cmdptr; - - if (!sic) - return -EINVAL; -@@ -466,9 +480,18 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode, - */ - err = -EFAULT; - rq->cmd_len = cmdlen; -- if (copy_from_user(rq->cmd, sic->data, cmdlen)) -+ -+ if (rq->cmd != rq->__cmd) -+ cmdptr = rq->cmd; -+ else -+ cmdptr = tmpcmd; -+ -+ if (copy_from_user(cmdptr, sic->data, cmdlen)) - goto error; - -+ if (rq->cmd != cmdptr) -+ memcpy(rq->cmd, cmdptr, cmdlen); -+ - if (in_len && copy_from_user(buffer, sic->data + cmdlen, in_len)) - goto error; - -diff --git a/crypto/cryptd.c b/crypto/cryptd.c -index 671d4d6..5f24030 100644 ---- a/crypto/cryptd.c -+++ b/crypto/cryptd.c -@@ -63,7 +63,7 @@ struct cryptd_blkcipher_ctx { - - struct cryptd_blkcipher_request_ctx { - crypto_completion_t complete; --}; -+} __no_const; - - struct cryptd_hash_ctx { - struct crypto_shash *child; -@@ -80,7 +80,7 @@ struct cryptd_aead_ctx { - - struct cryptd_aead_request_ctx { - crypto_completion_t complete; --}; -+} __no_const; - - static void cryptd_queue_worker(struct work_struct *work); - -diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c -index e6defd8..c26a225 100644 ---- a/drivers/acpi/apei/cper.c -+++ b/drivers/acpi/apei/cper.c -@@ -38,12 +38,12 @@ - */ - u64 cper_next_record_id(void) - { -- static atomic64_t seq; -+ static atomic64_unchecked_t seq; - -- if (!atomic64_read(&seq)) -- atomic64_set(&seq, ((u64)get_seconds()) << 32); -+ if (!atomic64_read_unchecked(&seq)) -+ atomic64_set_unchecked(&seq, ((u64)get_seconds()) << 32); - -- return atomic64_inc_return(&seq); -+ return atomic64_inc_return_unchecked(&seq); - } - EXPORT_SYMBOL_GPL(cper_next_record_id); - -diff --git a/drivers/acpi/ec_sys.c b/drivers/acpi/ec_sys.c -index 7586544..636a2f0 100644 ---- a/drivers/acpi/ec_sys.c -+++ b/drivers/acpi/ec_sys.c -@@ -12,6 +12,7 @@ - #include <linux/acpi.h> - #include <linux/debugfs.h> - #include <linux/module.h> -+#include <linux/uaccess.h> - #include "internal.h" - - MODULE_AUTHOR("Thomas Renninger <trenn(a)suse.de>"); -@@ -34,7 +35,7 @@ static ssize_t acpi_ec_read_io(struct file *f, char __user *buf, - * struct acpi_ec *ec = ((struct seq_file *)f->private_data)->private; - */ - unsigned int size = EC_SPACE_SIZE; -- u8 *data = (u8 *) buf; -+ u8 data; - loff_t init_off = *off; - int err = 0; - -@@ -47,9 +48,11 @@ static ssize_t acpi_ec_read_io(struct file *f, char __user *buf, - size = count; - - while (size) { -- err = ec_read(*off, &data[*off - init_off]); -+ err = ec_read(*off, &data); - if (err) - return err; -+ if (put_user(data, &buf[*off - init_off])) -+ return -EFAULT; - *off += 1; - size--; - } -@@ -65,7 +68,6 @@ static ssize_t acpi_ec_write_io(struct file *f, const char __user *buf, - - unsigned int size = count; - loff_t init_off = *off; -- u8 *data = (u8 *) buf; - int err = 0; - - if (*off >= EC_SPACE_SIZE) -@@ -76,7 +78,9 @@ static ssize_t acpi_ec_write_io(struct file *f, const char __user *buf, - } - - while (size) { -- u8 byte_write = data[*off - init_off]; -+ u8 byte_write; -+ if (get_user(byte_write, &buf[*off - init_off])) -+ return -EFAULT; - err = ec_write(*off, byte_write); - if (err) - return err; -diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c -index 251c7b62..000462d 100644 ---- a/drivers/acpi/proc.c -+++ b/drivers/acpi/proc.c -@@ -343,19 +343,13 @@ acpi_system_write_wakeup_device(struct file *file, - size_t count, loff_t * ppos) - { - struct list_head *node, *next; -- char strbuf[5]; -- char str[5] = ""; -- unsigned int len = count; -+ char strbuf[5] = {0}; - -- if (len > 4) -- len = 4; -- if (len < 0) -+ if (count > 4) -+ count = 4; -+ if (copy_from_user(strbuf, buffer, count)) - return -EFAULT; -- -- if (copy_from_user(strbuf, buffer, len)) -- return -EFAULT; -- strbuf[len] = '\0'; -- sscanf(strbuf, "%s", str); -+ strbuf[count] = '\0'; - - mutex_lock(&acpi_device_lock); - list_for_each_safe(node, next, &acpi_wakeup_device_list) { -@@ -364,7 +358,7 @@ acpi_system_write_wakeup_device(struct file *file, - if (!dev->wakeup.flags.valid) - continue; - -- if (!strncmp(dev->pnp.bus_id, str, 4)) { -+ if (!strncmp(dev->pnp.bus_id, strbuf, 4)) { - if (device_can_wakeup(&dev->dev)) { - bool enable = !device_may_wakeup(&dev->dev); - device_set_wakeup_enable(&dev->dev, enable); -diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c -index 0734086..3ad3e4c 100644 ---- a/drivers/acpi/processor_driver.c -+++ b/drivers/acpi/processor_driver.c -@@ -556,7 +556,7 @@ static int __cpuinit acpi_processor_add(struct acpi_device *device) - return 0; - #endif - -- BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0)); -+ BUG_ON(pr->id >= nr_cpu_ids); - - /* - * Buggy BIOS check -diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c -index d31ee55..8363a8b 100644 ---- a/drivers/ata/libata-core.c -+++ b/drivers/ata/libata-core.c -@@ -4742,7 +4742,7 @@ void ata_qc_free(struct ata_queued_cmd *qc) - struct ata_port *ap; - unsigned int tag; - -- WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */ -+ BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */ - ap = qc->ap; - - qc->flags = 0; -@@ -4758,7 +4758,7 @@ void __ata_qc_complete(struct ata_queued_cmd *qc) - struct ata_port *ap; - struct ata_link *link; - -- WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */ -+ BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */ - WARN_ON_ONCE(!(qc->flags & ATA_QCFLAG_ACTIVE)); - ap = qc->ap; - link = qc->dev->link; -@@ -5822,6 +5822,7 @@ static void ata_finalize_port_ops(struct ata_port_operations *ops) - return; - - spin_lock(&lock); -+ pax_open_kernel(); - - for (cur = ops->inherits; cur; cur = cur->inherits) { - void **inherit = (void **)cur; -@@ -5835,8 +5836,9 @@ static void ata_finalize_port_ops(struct ata_port_operations *ops) - if (IS_ERR(*pp)) - *pp = NULL; - -- ops->inherits = NULL; -+ *(struct ata_port_operations **)&ops->inherits = NULL; - -+ pax_close_kernel(); - spin_unlock(&lock); - } - -diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c -index 3239517..343b5f6 100644 ---- a/drivers/ata/pata_arasan_cf.c -+++ b/drivers/ata/pata_arasan_cf.c -@@ -862,7 +862,9 @@ static int __devinit arasan_cf_probe(struct platform_device *pdev) - /* Handle platform specific quirks */ - if (pdata->quirk) { - if (pdata->quirk & CF_BROKEN_PIO) { -- ap->ops->set_piomode = NULL; -+ pax_open_kernel(); -+ *(void **)&ap->ops->set_piomode = NULL; -+ pax_close_kernel(); - ap->pio_mask = 0; - } - if (pdata->quirk & CF_BROKEN_MWDMA) -diff --git a/drivers/atm/adummy.c b/drivers/atm/adummy.c -index f9b983a..887b9d8 100644 ---- a/drivers/atm/adummy.c -+++ b/drivers/atm/adummy.c -@@ -114,7 +114,7 @@ adummy_send(struct atm_vcc *vcc, struct sk_buff *skb) - vcc->pop(vcc, skb); - else - dev_kfree_skb_any(skb); -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - - return 0; - } -diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c -index f8f41e0..1f987dd 100644 ---- a/drivers/atm/ambassador.c -+++ b/drivers/atm/ambassador.c -@@ -454,7 +454,7 @@ static void tx_complete (amb_dev * dev, tx_out * tx) { - PRINTD (DBG_FLOW|DBG_TX, "tx_complete %p %p", dev, tx); - - // VC layer stats -- atomic_inc(&ATM_SKB(skb)->vcc->stats->tx); -+ atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx); - - // free the descriptor - kfree (tx_descr); -@@ -495,7 +495,7 @@ static void rx_complete (amb_dev * dev, rx_out * rx) { - dump_skb ("<<<", vc, skb); - - // VC layer stats -- atomic_inc(&atm_vcc->stats->rx); -+ atomic_inc_unchecked(&atm_vcc->stats->rx); - __net_timestamp(skb); - // end of our responsibility - atm_vcc->push (atm_vcc, skb); -@@ -510,7 +510,7 @@ static void rx_complete (amb_dev * dev, rx_out * rx) { - } else { - PRINTK (KERN_INFO, "dropped over-size frame"); - // should we count this? -- atomic_inc(&atm_vcc->stats->rx_drop); -+ atomic_inc_unchecked(&atm_vcc->stats->rx_drop); - } - - } else { -@@ -1338,7 +1338,7 @@ static int amb_send (struct atm_vcc * atm_vcc, struct sk_buff * skb) { - } - - if (check_area (skb->data, skb->len)) { -- atomic_inc(&atm_vcc->stats->tx_err); -+ atomic_inc_unchecked(&atm_vcc->stats->tx_err); - return -ENOMEM; // ? - } - -diff --git a/drivers/atm/atmtcp.c b/drivers/atm/atmtcp.c -index b22d71c..d6e1049 100644 ---- a/drivers/atm/atmtcp.c -+++ b/drivers/atm/atmtcp.c -@@ -207,7 +207,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb) - if (vcc->pop) vcc->pop(vcc,skb); - else dev_kfree_skb(skb); - if (dev_data) return 0; -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - return -ENOLINK; - } - size = skb->len+sizeof(struct atmtcp_hdr); -@@ -215,7 +215,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb) - if (!new_skb) { - if (vcc->pop) vcc->pop(vcc,skb); - else dev_kfree_skb(skb); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - return -ENOBUFS; - } - hdr = (void *) skb_put(new_skb,sizeof(struct atmtcp_hdr)); -@@ -226,8 +226,8 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb) - if (vcc->pop) vcc->pop(vcc,skb); - else dev_kfree_skb(skb); - out_vcc->push(out_vcc,new_skb); -- atomic_inc(&vcc->stats->tx); -- atomic_inc(&out_vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->tx); -+ atomic_inc_unchecked(&out_vcc->stats->rx); - return 0; - } - -@@ -301,7 +301,7 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb) - out_vcc = find_vcc(dev, ntohs(hdr->vpi), ntohs(hdr->vci)); - read_unlock(&vcc_sklist_lock); - if (!out_vcc) { -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - goto done; - } - skb_pull(skb,sizeof(struct atmtcp_hdr)); -@@ -313,8 +313,8 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb) - __net_timestamp(new_skb); - skb_copy_from_linear_data(skb, skb_put(new_skb, skb->len), skb->len); - out_vcc->push(out_vcc,new_skb); -- atomic_inc(&vcc->stats->tx); -- atomic_inc(&out_vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->tx); -+ atomic_inc_unchecked(&out_vcc->stats->rx); - done: - if (vcc->pop) vcc->pop(vcc,skb); - else dev_kfree_skb(skb); -diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c -index 2059ee4..faf51c7 100644 ---- a/drivers/atm/eni.c -+++ b/drivers/atm/eni.c -@@ -522,7 +522,7 @@ static int rx_aal0(struct atm_vcc *vcc) - DPRINTK(DEV_LABEL "(itf %d): trashing empty cell\n", - vcc->dev->number); - length = 0; -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - } - else { - length = ATM_CELL_SIZE-1; /* no HEC */ -@@ -577,7 +577,7 @@ static int rx_aal5(struct atm_vcc *vcc) - size); - } - eff = length = 0; -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - } - else { - size = (descr & MID_RED_COUNT)*(ATM_CELL_PAYLOAD >> 2); -@@ -594,7 +594,7 @@ static int rx_aal5(struct atm_vcc *vcc) - "(VCI=%d,length=%ld,size=%ld (descr 0x%lx))\n", - vcc->dev->number,vcc->vci,length,size << 2,descr); - length = eff = 0; -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - } - } - skb = eff ? atm_alloc_charge(vcc,eff << 2,GFP_ATOMIC) : NULL; -@@ -767,7 +767,7 @@ rx_dequeued++; - vcc->push(vcc,skb); - pushed++; - } -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - wake_up(&eni_dev->rx_wait); - } -@@ -1227,7 +1227,7 @@ static void dequeue_tx(struct atm_dev *dev) - PCI_DMA_TODEVICE); - if (vcc->pop) vcc->pop(vcc,skb); - else dev_kfree_skb_irq(skb); -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - wake_up(&eni_dev->tx_wait); - dma_complete++; - } -@@ -1567,7 +1567,7 @@ tx_complete++; - /*--------------------------------- entries ---------------------------------*/ - - --static const char *media_name[] __devinitdata = { -+static const char *media_name[] __devinitconst = { - "MMF", "SMF", "MMF", "03?", /* 0- 3 */ - "UTP", "05?", "06?", "07?", /* 4- 7 */ - "TAXI","09?", "10?", "11?", /* 8-11 */ -diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c -index 86fed1b..6dc4721 100644 ---- a/drivers/atm/firestream.c -+++ b/drivers/atm/firestream.c -@@ -749,7 +749,7 @@ static void process_txdone_queue (struct fs_dev *dev, struct queue *q) - } - } - -- atomic_inc(&ATM_SKB(skb)->vcc->stats->tx); -+ atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx); - - fs_dprintk (FS_DEBUG_TXMEM, "i"); - fs_dprintk (FS_DEBUG_ALLOC, "Free t-skb: %p\n", skb); -@@ -816,7 +816,7 @@ static void process_incoming (struct fs_dev *dev, struct queue *q) - #endif - skb_put (skb, qe->p1 & 0xffff); - ATM_SKB(skb)->vcc = atm_vcc; -- atomic_inc(&atm_vcc->stats->rx); -+ atomic_inc_unchecked(&atm_vcc->stats->rx); - __net_timestamp(skb); - fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p (pushed)\n", skb); - atm_vcc->push (atm_vcc, skb); -@@ -837,12 +837,12 @@ static void process_incoming (struct fs_dev *dev, struct queue *q) - kfree (pe); - } - if (atm_vcc) -- atomic_inc(&atm_vcc->stats->rx_drop); -+ atomic_inc_unchecked(&atm_vcc->stats->rx_drop); - break; - case 0x1f: /* Reassembly abort: no buffers. */ - /* Silently increment error counter. */ - if (atm_vcc) -- atomic_inc(&atm_vcc->stats->rx_drop); -+ atomic_inc_unchecked(&atm_vcc->stats->rx_drop); - break; - default: /* Hmm. Haven't written the code to handle the others yet... -- REW */ - printk (KERN_WARNING "Don't know what to do with RX status %x: %s.\n", -diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c -index 361f5ae..7fc552d 100644 ---- a/drivers/atm/fore200e.c -+++ b/drivers/atm/fore200e.c -@@ -933,9 +933,9 @@ fore200e_tx_irq(struct fore200e* fore200e) - #endif - /* check error condition */ - if (*entry->status & STATUS_ERROR) -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - else -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - } - } - -@@ -1084,7 +1084,7 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp - if (skb == NULL) { - DPRINTK(2, "unable to alloc new skb, rx PDU length = %d\n", pdu_len); - -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - return -ENOMEM; - } - -@@ -1127,14 +1127,14 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp - - dev_kfree_skb_any(skb); - -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - return -ENOMEM; - } - - ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0); - - vcc->push(vcc, skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - - ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0); - -@@ -1212,7 +1212,7 @@ fore200e_rx_irq(struct fore200e* fore200e) - DPRINTK(2, "damaged PDU on %d.%d.%d\n", - fore200e->atm_dev->number, - entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - } - } - -@@ -1657,7 +1657,7 @@ fore200e_send(struct atm_vcc *vcc, struct sk_buff *skb) - goto retry_here; - } - -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - - fore200e->tx_sat++; - DPRINTK(2, "tx queue of device %s is saturated, PDU dropped - heartbeat is %08x\n", -diff --git a/drivers/atm/he.c b/drivers/atm/he.c -index b182c2f..1c6fa8a 100644 ---- a/drivers/atm/he.c -+++ b/drivers/atm/he.c -@@ -1709,7 +1709,7 @@ he_service_rbrq(struct he_dev *he_dev, int group) - - if (RBRQ_HBUF_ERR(he_dev->rbrq_head)) { - hprintk("HBUF_ERR! (cid 0x%x)\n", cid); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - goto return_host_buffers; - } - -@@ -1736,7 +1736,7 @@ he_service_rbrq(struct he_dev *he_dev, int group) - RBRQ_LEN_ERR(he_dev->rbrq_head) - ? "LEN_ERR" : "", - vcc->vpi, vcc->vci); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - goto return_host_buffers; - } - -@@ -1788,7 +1788,7 @@ he_service_rbrq(struct he_dev *he_dev, int group) - vcc->push(vcc, skb); - spin_lock(&he_dev->global_lock); - -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - - return_host_buffers: - ++pdus_assembled; -@@ -2114,7 +2114,7 @@ __enqueue_tpd(struct he_dev *he_dev, struct he_tpd *tpd, unsigned cid) - tpd->vcc->pop(tpd->vcc, tpd->skb); - else - dev_kfree_skb_any(tpd->skb); -- atomic_inc(&tpd->vcc->stats->tx_err); -+ atomic_inc_unchecked(&tpd->vcc->stats->tx_err); - } - pci_pool_free(he_dev->tpd_pool, tpd, TPD_ADDR(tpd->status)); - return; -@@ -2526,7 +2526,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb) - vcc->pop(vcc, skb); - else - dev_kfree_skb_any(skb); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - return -EINVAL; - } - -@@ -2537,7 +2537,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb) - vcc->pop(vcc, skb); - else - dev_kfree_skb_any(skb); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - return -EINVAL; - } - #endif -@@ -2549,7 +2549,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb) - vcc->pop(vcc, skb); - else - dev_kfree_skb_any(skb); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - spin_unlock_irqrestore(&he_dev->global_lock, flags); - return -ENOMEM; - } -@@ -2591,7 +2591,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb) - vcc->pop(vcc, skb); - else - dev_kfree_skb_any(skb); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - spin_unlock_irqrestore(&he_dev->global_lock, flags); - return -ENOMEM; - } -@@ -2622,7 +2622,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb) - __enqueue_tpd(he_dev, tpd, cid); - spin_unlock_irqrestore(&he_dev->global_lock, flags); - -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - - return 0; - } -diff --git a/drivers/atm/horizon.c b/drivers/atm/horizon.c -index 75fd691..2d20b14 100644 ---- a/drivers/atm/horizon.c -+++ b/drivers/atm/horizon.c -@@ -1034,7 +1034,7 @@ static void rx_schedule (hrz_dev * dev, int irq) { - { - struct atm_vcc * vcc = ATM_SKB(skb)->vcc; - // VC layer stats -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - __net_timestamp(skb); - // end of our responsibility - vcc->push (vcc, skb); -@@ -1186,7 +1186,7 @@ static void tx_schedule (hrz_dev * const dev, int irq) { - dev->tx_iovec = NULL; - - // VC layer stats -- atomic_inc(&ATM_SKB(skb)->vcc->stats->tx); -+ atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx); - - // free the skb - hrz_kfree_skb (skb); -diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c -index 1c05212..c28e200 100644 ---- a/drivers/atm/idt77252.c -+++ b/drivers/atm/idt77252.c -@@ -812,7 +812,7 @@ drain_scq(struct idt77252_dev *card, struct vc_map *vc) - else - dev_kfree_skb(skb); - -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - } - - atomic_dec(&scq->used); -@@ -1075,13 +1075,13 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe) - if ((sb = dev_alloc_skb(64)) == NULL) { - printk("%s: Can't allocate buffers for aal0.\n", - card->name); -- atomic_add(i, &vcc->stats->rx_drop); -+ atomic_add_unchecked(i, &vcc->stats->rx_drop); - break; - } - if (!atm_charge(vcc, sb->truesize)) { - RXPRINTK("%s: atm_charge() dropped aal0 packets.\n", - card->name); -- atomic_add(i - 1, &vcc->stats->rx_drop); -+ atomic_add_unchecked(i - 1, &vcc->stats->rx_drop); - dev_kfree_skb(sb); - break; - } -@@ -1098,7 +1098,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe) - ATM_SKB(sb)->vcc = vcc; - __net_timestamp(sb); - vcc->push(vcc, sb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - - cell += ATM_CELL_PAYLOAD; - } -@@ -1135,13 +1135,13 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe) - "(CDC: %08x)\n", - card->name, len, rpp->len, readl(SAR_REG_CDC)); - recycle_rx_pool_skb(card, rpp); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - return; - } - if (stat & SAR_RSQE_CRC) { - RXPRINTK("%s: AAL5 CRC error.\n", card->name); - recycle_rx_pool_skb(card, rpp); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - return; - } - if (skb_queue_len(&rpp->queue) > 1) { -@@ -1152,7 +1152,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe) - RXPRINTK("%s: Can't alloc RX skb.\n", - card->name); - recycle_rx_pool_skb(card, rpp); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - return; - } - if (!atm_charge(vcc, skb->truesize)) { -@@ -1171,7 +1171,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe) - __net_timestamp(skb); - - vcc->push(vcc, skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - - return; - } -@@ -1193,7 +1193,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe) - __net_timestamp(skb); - - vcc->push(vcc, skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - - if (skb->truesize > SAR_FB_SIZE_3) - add_rx_skb(card, 3, SAR_FB_SIZE_3, 1); -@@ -1304,14 +1304,14 @@ idt77252_rx_raw(struct idt77252_dev *card) - if (vcc->qos.aal != ATM_AAL0) { - RPRINTK("%s: raw cell for non AAL0 vc %u.%u\n", - card->name, vpi, vci); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - goto drop; - } - - if ((sb = dev_alloc_skb(64)) == NULL) { - printk("%s: Can't allocate buffers for AAL0.\n", - card->name); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - goto drop; - } - -@@ -1330,7 +1330,7 @@ idt77252_rx_raw(struct idt77252_dev *card) - ATM_SKB(sb)->vcc = vcc; - __net_timestamp(sb); - vcc->push(vcc, sb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - - drop: - skb_pull(queue, 64); -@@ -1955,13 +1955,13 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam) - - if (vc == NULL) { - printk("%s: NULL connection in send().\n", card->name); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb(skb); - return -EINVAL; - } - if (!test_bit(VCF_TX, &vc->flags)) { - printk("%s: Trying to transmit on a non-tx VC.\n", card->name); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb(skb); - return -EINVAL; - } -@@ -1973,14 +1973,14 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam) - break; - default: - printk("%s: Unsupported AAL: %d\n", card->name, vcc->qos.aal); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb(skb); - return -EINVAL; - } - - if (skb_shinfo(skb)->nr_frags != 0) { - printk("%s: No scatter-gather yet.\n", card->name); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb(skb); - return -EINVAL; - } -@@ -1988,7 +1988,7 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam) - - err = queue_skb(card, vc, skb, oam); - if (err) { -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb(skb); - return err; - } -@@ -2011,7 +2011,7 @@ idt77252_send_oam(struct atm_vcc *vcc, void *cell, int flags) - skb = dev_alloc_skb(64); - if (!skb) { - printk("%s: Out of memory in send_oam().\n", card->name); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - return -ENOMEM; - } - atomic_add(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc); -diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c -index d438601..8b98495 100644 ---- a/drivers/atm/iphase.c -+++ b/drivers/atm/iphase.c -@@ -1145,7 +1145,7 @@ static int rx_pkt(struct atm_dev *dev) - status = (u_short) (buf_desc_ptr->desc_mode); - if (status & (RX_CER | RX_PTE | RX_OFL)) - { -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - IF_ERR(printk("IA: bad packet, dropping it");) - if (status & RX_CER) { - IF_ERR(printk(" cause: packet CRC error\n");) -@@ -1168,7 +1168,7 @@ static int rx_pkt(struct atm_dev *dev) - len = dma_addr - buf_addr; - if (len > iadev->rx_buf_sz) { - printk("Over %d bytes sdu received, dropped!!!\n", iadev->rx_buf_sz); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - goto out_free_desc; - } - -@@ -1318,7 +1318,7 @@ static void rx_dle_intr(struct atm_dev *dev) - ia_vcc = INPH_IA_VCC(vcc); - if (ia_vcc == NULL) - { -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - atm_return(vcc, skb->truesize); - dev_kfree_skb_any(skb); - goto INCR_DLE; -@@ -1330,7 +1330,7 @@ static void rx_dle_intr(struct atm_dev *dev) - if ((length > iadev->rx_buf_sz) || (length > - (skb->len - sizeof(struct cpcs_trailer)))) - { -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - IF_ERR(printk("rx_dle_intr: Bad AAL5 trailer %d (skb len %d)", - length, skb->len);) - atm_return(vcc, skb->truesize); -@@ -1346,7 +1346,7 @@ static void rx_dle_intr(struct atm_dev *dev) - - IF_RX(printk("rx_dle_intr: skb push");) - vcc->push(vcc,skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - iadev->rx_pkt_cnt++; - } - INCR_DLE: -@@ -2826,15 +2826,15 @@ static int ia_ioctl(struct atm_dev *dev, unsigned int cmd, void __user *arg) - { - struct k_sonet_stats *stats; - stats = &PRIV(_ia_dev[board])->sonet_stats; -- printk("section_bip: %d\n", atomic_read(&stats->section_bip)); -- printk("line_bip : %d\n", atomic_read(&stats->line_bip)); -- printk("path_bip : %d\n", atomic_read(&stats->path_bip)); -- printk("line_febe : %d\n", atomic_read(&stats->line_febe)); -- printk("path_febe : %d\n", atomic_read(&stats->path_febe)); -- printk("corr_hcs : %d\n", atomic_read(&stats->corr_hcs)); -- printk("uncorr_hcs : %d\n", atomic_read(&stats->uncorr_hcs)); -- printk("tx_cells : %d\n", atomic_read(&stats->tx_cells)); -- printk("rx_cells : %d\n", atomic_read(&stats->rx_cells)); -+ printk("section_bip: %d\n", atomic_read_unchecked(&stats->section_bip)); -+ printk("line_bip : %d\n", atomic_read_unchecked(&stats->line_bip)); -+ printk("path_bip : %d\n", atomic_read_unchecked(&stats->path_bip)); -+ printk("line_febe : %d\n", atomic_read_unchecked(&stats->line_febe)); -+ printk("path_febe : %d\n", atomic_read_unchecked(&stats->path_febe)); -+ printk("corr_hcs : %d\n", atomic_read_unchecked(&stats->corr_hcs)); -+ printk("uncorr_hcs : %d\n", atomic_read_unchecked(&stats->uncorr_hcs)); -+ printk("tx_cells : %d\n", atomic_read_unchecked(&stats->tx_cells)); -+ printk("rx_cells : %d\n", atomic_read_unchecked(&stats->rx_cells)); - } - ia_cmds.status = 0; - break; -@@ -2939,7 +2939,7 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) { - if ((desc == 0) || (desc > iadev->num_tx_desc)) - { - IF_ERR(printk(DEV_LABEL "invalid desc for send: %d\n", desc);) -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - if (vcc->pop) - vcc->pop(vcc, skb); - else -@@ -3044,14 +3044,14 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) { - ATM_DESC(skb) = vcc->vci; - skb_queue_tail(&iadev->tx_dma_q, skb); - -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - iadev->tx_pkt_cnt++; - /* Increment transaction counter */ - writel(2, iadev->dma+IPHASE5575_TX_COUNTER); - - #if 0 - /* add flow control logic */ -- if (atomic_read(&vcc->stats->tx) % 20 == 0) { -+ if (atomic_read_unchecked(&vcc->stats->tx) % 20 == 0) { - if (iavcc->vc_desc_cnt > 10) { - vcc->tx_quota = vcc->tx_quota * 3 / 4; - printk("Tx1: vcc->tx_quota = %d \n", (u32)vcc->tx_quota ); -diff --git a/drivers/atm/lanai.c b/drivers/atm/lanai.c -index 68c7588..7036683 100644 ---- a/drivers/atm/lanai.c -+++ b/drivers/atm/lanai.c -@@ -1303,7 +1303,7 @@ static void lanai_send_one_aal5(struct lanai_dev *lanai, - vcc_tx_add_aal5_trailer(lvcc, skb->len, 0, 0); - lanai_endtx(lanai, lvcc); - lanai_free_skb(lvcc->tx.atmvcc, skb); -- atomic_inc(&lvcc->tx.atmvcc->stats->tx); -+ atomic_inc_unchecked(&lvcc->tx.atmvcc->stats->tx); - } - - /* Try to fill the buffer - don't call unless there is backlog */ -@@ -1426,7 +1426,7 @@ static void vcc_rx_aal5(struct lanai_vcc *lvcc, int endptr) - ATM_SKB(skb)->vcc = lvcc->rx.atmvcc; - __net_timestamp(skb); - lvcc->rx.atmvcc->push(lvcc->rx.atmvcc, skb); -- atomic_inc(&lvcc->rx.atmvcc->stats->rx); -+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx); - out: - lvcc->rx.buf.ptr = end; - cardvcc_write(lvcc, endptr, vcc_rxreadptr); -@@ -1667,7 +1667,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s) - DPRINTK("(itf %d) got RX service entry 0x%X for non-AAL5 " - "vcc %d\n", lanai->number, (unsigned int) s, vci); - lanai->stats.service_rxnotaal5++; -- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err); -+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err); - return 0; - } - if (likely(!(s & (SERVICE_TRASH | SERVICE_STREAM | SERVICE_CRCERR)))) { -@@ -1679,7 +1679,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s) - int bytes; - read_unlock(&vcc_sklist_lock); - DPRINTK("got trashed rx pdu on vci %d\n", vci); -- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err); -+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err); - lvcc->stats.x.aal5.service_trash++; - bytes = (SERVICE_GET_END(s) * 16) - - (((unsigned long) lvcc->rx.buf.ptr) - -@@ -1691,7 +1691,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s) - } - if (s & SERVICE_STREAM) { - read_unlock(&vcc_sklist_lock); -- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err); -+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err); - lvcc->stats.x.aal5.service_stream++; - printk(KERN_ERR DEV_LABEL "(itf %d): Got AAL5 stream " - "PDU on VCI %d!\n", lanai->number, vci); -@@ -1699,7 +1699,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s) - return 0; - } - DPRINTK("got rx crc error on vci %d\n", vci); -- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err); -+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err); - lvcc->stats.x.aal5.service_rxcrc++; - lvcc->rx.buf.ptr = &lvcc->rx.buf.start[SERVICE_GET_END(s) * 4]; - cardvcc_write(lvcc, SERVICE_GET_END(s), vcc_rxreadptr); -diff --git a/drivers/atm/nicstar.c b/drivers/atm/nicstar.c -index 1c70c45..300718d 100644 ---- a/drivers/atm/nicstar.c -+++ b/drivers/atm/nicstar.c -@@ -1654,7 +1654,7 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb) - if ((vc = (vc_map *) vcc->dev_data) == NULL) { - printk("nicstar%d: vcc->dev_data == NULL on ns_send().\n", - card->index); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb_any(skb); - return -EINVAL; - } -@@ -1662,7 +1662,7 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb) - if (!vc->tx) { - printk("nicstar%d: Trying to transmit on a non-tx VC.\n", - card->index); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb_any(skb); - return -EINVAL; - } -@@ -1670,14 +1670,14 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb) - if (vcc->qos.aal != ATM_AAL5 && vcc->qos.aal != ATM_AAL0) { - printk("nicstar%d: Only AAL0 and AAL5 are supported.\n", - card->index); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb_any(skb); - return -EINVAL; - } - - if (skb_shinfo(skb)->nr_frags != 0) { - printk("nicstar%d: No scatter-gather yet.\n", card->index); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb_any(skb); - return -EINVAL; - } -@@ -1725,11 +1725,11 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb) - } - - if (push_scqe(card, vc, scq, &scqe, skb) != 0) { -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb_any(skb); - return -EIO; - } -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - - return 0; - } -@@ -2046,14 +2046,14 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) - printk - ("nicstar%d: Can't allocate buffers for aal0.\n", - card->index); -- atomic_add(i, &vcc->stats->rx_drop); -+ atomic_add_unchecked(i, &vcc->stats->rx_drop); - break; - } - if (!atm_charge(vcc, sb->truesize)) { - RXPRINTK - ("nicstar%d: atm_charge() dropped aal0 packets.\n", - card->index); -- atomic_add(i - 1, &vcc->stats->rx_drop); /* already increased by 1 */ -+ atomic_add_unchecked(i - 1, &vcc->stats->rx_drop); /* already increased by 1 */ - dev_kfree_skb_any(sb); - break; - } -@@ -2068,7 +2068,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) - ATM_SKB(sb)->vcc = vcc; - __net_timestamp(sb); - vcc->push(vcc, sb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - cell += ATM_CELL_PAYLOAD; - } - -@@ -2085,7 +2085,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) - if (iovb == NULL) { - printk("nicstar%d: Out of iovec buffers.\n", - card->index); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - recycle_rx_buf(card, skb); - return; - } -@@ -2109,7 +2109,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) - small or large buffer itself. */ - } else if (NS_PRV_IOVCNT(iovb) >= NS_MAX_IOVECS) { - printk("nicstar%d: received too big AAL5 SDU.\n", card->index); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data, - NS_MAX_IOVECS); - NS_PRV_IOVCNT(iovb) = 0; -@@ -2129,7 +2129,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) - ("nicstar%d: Expected a small buffer, and this is not one.\n", - card->index); - which_list(card, skb); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - recycle_rx_buf(card, skb); - vc->rx_iov = NULL; - recycle_iov_buf(card, iovb); -@@ -2142,7 +2142,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) - ("nicstar%d: Expected a large buffer, and this is not one.\n", - card->index); - which_list(card, skb); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data, - NS_PRV_IOVCNT(iovb)); - vc->rx_iov = NULL; -@@ -2165,7 +2165,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) - printk(" - PDU size mismatch.\n"); - else - printk(".\n"); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data, - NS_PRV_IOVCNT(iovb)); - vc->rx_iov = NULL; -@@ -2179,7 +2179,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) - /* skb points to a small buffer */ - if (!atm_charge(vcc, skb->truesize)) { - push_rxbufs(card, skb); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - } else { - skb_put(skb, len); - dequeue_sm_buf(card, skb); -@@ -2189,7 +2189,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) - ATM_SKB(skb)->vcc = vcc; - __net_timestamp(skb); - vcc->push(vcc, skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - } else if (NS_PRV_IOVCNT(iovb) == 2) { /* One small plus one large buffer */ - struct sk_buff *sb; -@@ -2200,7 +2200,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) - if (len <= NS_SMBUFSIZE) { - if (!atm_charge(vcc, sb->truesize)) { - push_rxbufs(card, sb); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - } else { - skb_put(sb, len); - dequeue_sm_buf(card, sb); -@@ -2210,7 +2210,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) - ATM_SKB(sb)->vcc = vcc; - __net_timestamp(sb); - vcc->push(vcc, sb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - - push_rxbufs(card, skb); -@@ -2219,7 +2219,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) - - if (!atm_charge(vcc, skb->truesize)) { - push_rxbufs(card, skb); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - } else { - dequeue_lg_buf(card, skb); - #ifdef NS_USE_DESTRUCTORS -@@ -2232,7 +2232,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) - ATM_SKB(skb)->vcc = vcc; - __net_timestamp(skb); - vcc->push(vcc, skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - - push_rxbufs(card, sb); -@@ -2253,7 +2253,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) - printk - ("nicstar%d: Out of huge buffers.\n", - card->index); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - recycle_iovec_rx_bufs(card, - (struct iovec *) - iovb->data, -@@ -2304,7 +2304,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) - card->hbpool.count++; - } else - dev_kfree_skb_any(hb); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - } else { - /* Copy the small buffer to the huge buffer */ - sb = (struct sk_buff *)iov->iov_base; -@@ -2341,7 +2341,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) - #endif /* NS_USE_DESTRUCTORS */ - __net_timestamp(hb); - vcc->push(vcc, hb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - } - -diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c -index 9851093..adb2b1e 100644 ---- a/drivers/atm/solos-pci.c -+++ b/drivers/atm/solos-pci.c -@@ -714,7 +714,7 @@ void solos_bh(unsigned long card_arg) - } - atm_charge(vcc, skb->truesize); - vcc->push(vcc, skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - break; - - case PKT_STATUS: -@@ -1009,7 +1009,7 @@ static uint32_t fpga_tx(struct solos_card *card) - vcc = SKB_CB(oldskb)->vcc; - - if (vcc) { -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - solos_pop(vcc, oldskb); - } else - dev_kfree_skb_irq(oldskb); -diff --git a/drivers/atm/suni.c b/drivers/atm/suni.c -index 0215934..ce9f5b1 100644 ---- a/drivers/atm/suni.c -+++ b/drivers/atm/suni.c -@@ -49,8 +49,8 @@ static DEFINE_SPINLOCK(sunis_lock); - - - #define ADD_LIMITED(s,v) \ -- atomic_add((v),&stats->s); \ -- if (atomic_read(&stats->s) < 0) atomic_set(&stats->s,INT_MAX); -+ atomic_add_unchecked((v),&stats->s); \ -+ if (atomic_read_unchecked(&stats->s) < 0) atomic_set_unchecked(&stats->s,INT_MAX); - - - static void suni_hz(unsigned long from_timer) -diff --git a/drivers/atm/uPD98402.c b/drivers/atm/uPD98402.c -index 5120a96..e2572bd 100644 ---- a/drivers/atm/uPD98402.c -+++ b/drivers/atm/uPD98402.c -@@ -42,7 +42,7 @@ static int fetch_stats(struct atm_dev *dev,struct sonet_stats __user *arg,int ze - struct sonet_stats tmp; - int error = 0; - -- atomic_add(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs); -+ atomic_add_unchecked(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs); - sonet_copy_stats(&PRIV(dev)->sonet_stats,&tmp); - if (arg) error = copy_to_user(arg,&tmp,sizeof(tmp)); - if (zero && !error) { -@@ -161,9 +161,9 @@ static int uPD98402_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg) - - - #define ADD_LIMITED(s,v) \ -- { atomic_add(GET(v),&PRIV(dev)->sonet_stats.s); \ -- if (atomic_read(&PRIV(dev)->sonet_stats.s) < 0) \ -- atomic_set(&PRIV(dev)->sonet_stats.s,INT_MAX); } -+ { atomic_add_unchecked(GET(v),&PRIV(dev)->sonet_stats.s); \ -+ if (atomic_read_unchecked(&PRIV(dev)->sonet_stats.s) < 0) \ -+ atomic_set_unchecked(&PRIV(dev)->sonet_stats.s,INT_MAX); } - - - static void stat_event(struct atm_dev *dev) -@@ -194,7 +194,7 @@ static void uPD98402_int(struct atm_dev *dev) - if (reason & uPD98402_INT_PFM) stat_event(dev); - if (reason & uPD98402_INT_PCO) { - (void) GET(PCOCR); /* clear interrupt cause */ -- atomic_add(GET(HECCT), -+ atomic_add_unchecked(GET(HECCT), - &PRIV(dev)->sonet_stats.uncorr_hcs); - } - if ((reason & uPD98402_INT_RFO) && -@@ -222,9 +222,9 @@ static int uPD98402_start(struct atm_dev *dev) - PUT(~(uPD98402_INT_PFM | uPD98402_INT_ALM | uPD98402_INT_RFO | - uPD98402_INT_LOS),PIMR); /* enable them */ - (void) fetch_stats(dev,NULL,1); /* clear kernel counters */ -- atomic_set(&PRIV(dev)->sonet_stats.corr_hcs,-1); -- atomic_set(&PRIV(dev)->sonet_stats.tx_cells,-1); -- atomic_set(&PRIV(dev)->sonet_stats.rx_cells,-1); -+ atomic_set_unchecked(&PRIV(dev)->sonet_stats.corr_hcs,-1); -+ atomic_set_unchecked(&PRIV(dev)->sonet_stats.tx_cells,-1); -+ atomic_set_unchecked(&PRIV(dev)->sonet_stats.rx_cells,-1); - return 0; - } - -diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c -index abe4e20..83c4727 100644 ---- a/drivers/atm/zatm.c -+++ b/drivers/atm/zatm.c -@@ -459,7 +459,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]); - } - if (!size) { - dev_kfree_skb_irq(skb); -- if (vcc) atomic_inc(&vcc->stats->rx_err); -+ if (vcc) atomic_inc_unchecked(&vcc->stats->rx_err); - continue; - } - if (!atm_charge(vcc,skb->truesize)) { -@@ -469,7 +469,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]); - skb->len = size; - ATM_SKB(skb)->vcc = vcc; - vcc->push(vcc,skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - zout(pos & 0xffff,MTA(mbx)); - #if 0 /* probably a stupid idea */ -@@ -733,7 +733,7 @@ if (*ZATM_PRV_DSC(skb) != (uPD98401_TXPD_V | uPD98401_TXPD_DP | - skb_queue_head(&zatm_vcc->backlog,skb); - break; - } -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - wake_up(&zatm_vcc->tx_wait); - } - -diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c -index 8493536..31adee0 100644 ---- a/drivers/base/devtmpfs.c -+++ b/drivers/base/devtmpfs.c -@@ -368,7 +368,7 @@ int devtmpfs_mount(const char *mntdir) - if (!thread) - return 0; - -- err = sys_mount("devtmpfs", (char *)mntdir, "devtmpfs", MS_SILENT, NULL); -+ err = sys_mount((char __force_user *)"devtmpfs", (char __force_user *)mntdir, (char __force_user *)"devtmpfs", MS_SILENT, NULL); - if (err) - printk(KERN_INFO "devtmpfs: error mounting %i\n", err); - else -diff --git a/drivers/base/node.c b/drivers/base/node.c -index 90aa2a1..af1a177 100644 ---- a/drivers/base/node.c -+++ b/drivers/base/node.c -@@ -592,11 +592,9 @@ static ssize_t print_nodes_state(enum node_states state, char *buf) - { - int n; - -- n = nodelist_scnprintf(buf, PAGE_SIZE, node_states[state]); -- if (n > 0 && PAGE_SIZE > n + 1) { -- *(buf + n++) = '\n'; -- *(buf + n++) = '\0'; -- } -+ n = nodelist_scnprintf(buf, PAGE_SIZE-2, node_states[state]); -+ buf[n++] = '\n'; -+ buf[n] = '\0'; - return n; - } - -diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c -index 2a3e581..3d6a73f 100644 ---- a/drivers/base/power/wakeup.c -+++ b/drivers/base/power/wakeup.c -@@ -30,14 +30,14 @@ bool events_check_enabled; - * They need to be modified together atomically, so it's better to use one - * atomic variable to hold them both. - */ --static atomic_t combined_event_count = ATOMIC_INIT(0); -+static atomic_unchecked_t combined_event_count = ATOMIC_INIT(0); - - #define IN_PROGRESS_BITS (sizeof(int) * 4) - #define MAX_IN_PROGRESS ((1 << IN_PROGRESS_BITS) - 1) - - static void split_counters(unsigned int *cnt, unsigned int *inpr) - { -- unsigned int comb = atomic_read(&combined_event_count); -+ unsigned int comb = atomic_read_unchecked(&combined_event_count); - - *cnt = (comb >> IN_PROGRESS_BITS); - *inpr = comb & MAX_IN_PROGRESS; -@@ -379,7 +379,7 @@ static void wakeup_source_activate(struct wakeup_source *ws) - ws->last_time = ktime_get(); - - /* Increment the counter of events in progress. */ -- atomic_inc(&combined_event_count); -+ atomic_inc_unchecked(&combined_event_count); - } - - /** -@@ -475,7 +475,7 @@ static void wakeup_source_deactivate(struct wakeup_source *ws) - * Increment the counter of registered wakeup events and decrement the - * couter of wakeup events in progress simultaneously. - */ -- atomic_add(MAX_IN_PROGRESS, &combined_event_count); -+ atomic_add_unchecked(MAX_IN_PROGRESS, &combined_event_count); - } - - /** -diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c -index b0f553b..77b928b 100644 ---- a/drivers/block/cciss.c -+++ b/drivers/block/cciss.c -@@ -1198,6 +1198,8 @@ static int cciss_ioctl32_passthru(struct block_device *bdev, fmode_t mode, - int err; - u32 cp; - -+ memset(&arg64, 0, sizeof(arg64)); -+ - err = 0; - err |= - copy_from_user(&arg64.LUN_info, &arg32->LUN_info, -@@ -3007,7 +3009,7 @@ static void start_io(ctlr_info_t *h) - while (!list_empty(&h->reqQ)) { - c = list_entry(h->reqQ.next, CommandList_struct, list); - /* can't do anything if fifo is full */ -- if ((h->access.fifo_full(h))) { -+ if ((h->access->fifo_full(h))) { - dev_warn(&h->pdev->dev, "fifo full\n"); - break; - } -@@ -3017,7 +3019,7 @@ static void start_io(ctlr_info_t *h) - h->Qdepth--; - - /* Tell the controller execute command */ -- h->access.submit_command(h, c); -+ h->access->submit_command(h, c); - - /* Put job onto the completed Q */ - addQ(&h->cmpQ, c); -@@ -3443,17 +3445,17 @@ startio: - - static inline unsigned long get_next_completion(ctlr_info_t *h) - { -- return h->access.command_completed(h); -+ return h->access->command_completed(h); - } - - static inline int interrupt_pending(ctlr_info_t *h) - { -- return h->access.intr_pending(h); -+ return h->access->intr_pending(h); - } - - static inline long interrupt_not_for_us(ctlr_info_t *h) - { -- return ((h->access.intr_pending(h) == 0) || -+ return ((h->access->intr_pending(h) == 0) || - (h->interrupts_enabled == 0)); - } - -@@ -3486,7 +3488,7 @@ static inline u32 next_command(ctlr_info_t *h) - u32 a; - - if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant))) -- return h->access.command_completed(h); -+ return h->access->command_completed(h); - - if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) { - a = *(h->reply_pool_head); /* Next cmd in ring buffer */ -@@ -4044,7 +4046,7 @@ static void __devinit cciss_put_controller_into_performant_mode(ctlr_info_t *h) - trans_support & CFGTBL_Trans_use_short_tags); - - /* Change the access methods to the performant access methods */ -- h->access = SA5_performant_access; -+ h->access = &SA5_performant_access; - h->transMethod = CFGTBL_Trans_Performant; - - return; -@@ -4316,7 +4318,7 @@ static int __devinit cciss_pci_init(ctlr_info_t *h) - if (prod_index < 0) - return -ENODEV; - h->product_name = products[prod_index].product_name; -- h->access = *(products[prod_index].access); -+ h->access = products[prod_index].access; - - if (cciss_board_disabled(h)) { - dev_warn(&h->pdev->dev, "controller appears to be disabled\n"); -@@ -5041,7 +5043,7 @@ reinit_after_soft_reset: - } - - /* make sure the board interrupts are off */ -- h->access.set_intr_mask(h, CCISS_INTR_OFF); -+ h->access->set_intr_mask(h, CCISS_INTR_OFF); - rc = cciss_request_irq(h, do_cciss_msix_intr, do_cciss_intx); - if (rc) - goto clean2; -@@ -5093,7 +5095,7 @@ reinit_after_soft_reset: - * fake ones to scoop up any residual completions. - */ - spin_lock_irqsave(&h->lock, flags); -- h->access.set_intr_mask(h, CCISS_INTR_OFF); -+ h->access->set_intr_mask(h, CCISS_INTR_OFF); - spin_unlock_irqrestore(&h->lock, flags); - free_irq(h->intr[h->intr_mode], h); - rc = cciss_request_irq(h, cciss_msix_discard_completions, -@@ -5113,9 +5115,9 @@ reinit_after_soft_reset: - dev_info(&h->pdev->dev, "Board READY.\n"); - dev_info(&h->pdev->dev, - "Waiting for stale completions to drain.\n"); -- h->access.set_intr_mask(h, CCISS_INTR_ON); -+ h->access->set_intr_mask(h, CCISS_INTR_ON); - msleep(10000); -- h->access.set_intr_mask(h, CCISS_INTR_OFF); -+ h->access->set_intr_mask(h, CCISS_INTR_OFF); - - rc = controller_reset_failed(h->cfgtable); - if (rc) -@@ -5138,7 +5140,7 @@ reinit_after_soft_reset: - cciss_scsi_setup(h); - - /* Turn the interrupts on so we can service requests */ -- h->access.set_intr_mask(h, CCISS_INTR_ON); -+ h->access->set_intr_mask(h, CCISS_INTR_ON); - - /* Get the firmware version */ - inq_buff = kzalloc(sizeof(InquiryData_struct), GFP_KERNEL); -@@ -5211,7 +5213,7 @@ static void cciss_shutdown(struct pci_dev *pdev) - kfree(flush_buf); - if (return_code != IO_OK) - dev_warn(&h->pdev->dev, "Error flushing cache\n"); -- h->access.set_intr_mask(h, CCISS_INTR_OFF); -+ h->access->set_intr_mask(h, CCISS_INTR_OFF); - free_irq(h->intr[h->intr_mode], h); - } - -diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h -index 7fda30e..eb5dfe0 100644 ---- a/drivers/block/cciss.h -+++ b/drivers/block/cciss.h -@@ -101,7 +101,7 @@ struct ctlr_info - /* information about each logical volume */ - drive_info_struct *drv[CISS_MAX_LUN]; - -- struct access_method access; -+ struct access_method *access; - - /* queue and queue Info */ - struct list_head reqQ; -diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c -index 9125bbe..eede5c8 100644 ---- a/drivers/block/cpqarray.c -+++ b/drivers/block/cpqarray.c -@@ -404,7 +404,7 @@ static int __devinit cpqarray_register_ctlr( int i, struct pci_dev *pdev) - if (register_blkdev(COMPAQ_SMART2_MAJOR+i, hba[i]->devname)) { - goto Enomem4; - } -- hba[i]->access.set_intr_mask(hba[i], 0); -+ hba[i]->access->set_intr_mask(hba[i], 0); - if (request_irq(hba[i]->intr, do_ida_intr, - IRQF_DISABLED|IRQF_SHARED, hba[i]->devname, hba[i])) - { -@@ -459,7 +459,7 @@ static int __devinit cpqarray_register_ctlr( int i, struct pci_dev *pdev) - add_timer(&hba[i]->timer); - - /* Enable IRQ now that spinlock and rate limit timer are set up */ -- hba[i]->access.set_intr_mask(hba[i], FIFO_NOT_EMPTY); -+ hba[i]->access->set_intr_mask(hba[i], FIFO_NOT_EMPTY); - - for(j=0; j<NWD; j++) { - struct gendisk *disk = ida_gendisk[i][j]; -@@ -694,7 +694,7 @@ DBGINFO( - for(i=0; i<NR_PRODUCTS; i++) { - if (board_id == products[i].board_id) { - c->product_name = products[i].product_name; -- c->access = *(products[i].access); -+ c->access = products[i].access; - break; - } - } -@@ -792,7 +792,7 @@ static int __devinit cpqarray_eisa_detect(void) - hba[ctlr]->intr = intr; - sprintf(hba[ctlr]->devname, "ida%d", nr_ctlr); - hba[ctlr]->product_name = products[j].product_name; -- hba[ctlr]->access = *(products[j].access); -+ hba[ctlr]->access = products[j].access; - hba[ctlr]->ctlr = ctlr; - hba[ctlr]->board_id = board_id; - hba[ctlr]->pci_dev = NULL; /* not PCI */ -@@ -980,7 +980,7 @@ static void start_io(ctlr_info_t *h) - - while((c = h->reqQ) != NULL) { - /* Can't do anything if we're busy */ -- if (h->access.fifo_full(h) == 0) -+ if (h->access->fifo_full(h) == 0) - return; - - /* Get the first entry from the request Q */ -@@ -988,7 +988,7 @@ static void start_io(ctlr_info_t *h) - h->Qdepth--; - - /* Tell the controller to do our bidding */ -- h->access.submit_command(h, c); -+ h->access->submit_command(h, c); - - /* Get onto the completion Q */ - addQ(&h->cmpQ, c); -@@ -1050,7 +1050,7 @@ static irqreturn_t do_ida_intr(int irq, void *dev_id) - unsigned long flags; - __u32 a,a1; - -- istat = h->access.intr_pending(h); -+ istat = h->access->intr_pending(h); - /* Is this interrupt for us? */ - if (istat == 0) - return IRQ_NONE; -@@ -1061,7 +1061,7 @@ static irqreturn_t do_ida_intr(int irq, void *dev_id) - */ - spin_lock_irqsave(IDA_LOCK(h->ctlr), flags); - if (istat & FIFO_NOT_EMPTY) { -- while((a = h->access.command_completed(h))) { -+ while((a = h->access->command_completed(h))) { - a1 = a; a &= ~3; - if ((c = h->cmpQ) == NULL) - { -@@ -1449,11 +1449,11 @@ static int sendcmd( - /* - * Disable interrupt - */ -- info_p->access.set_intr_mask(info_p, 0); -+ info_p->access->set_intr_mask(info_p, 0); - /* Make sure there is room in the command FIFO */ - /* Actually it should be completely empty at this time. */ - for (i = 200000; i > 0; i--) { -- temp = info_p->access.fifo_full(info_p); -+ temp = info_p->access->fifo_full(info_p); - if (temp != 0) { - break; - } -@@ -1466,7 +1466,7 @@ DBG( - /* - * Send the cmd - */ -- info_p->access.submit_command(info_p, c); -+ info_p->access->submit_command(info_p, c); - complete = pollcomplete(ctlr); - - pci_unmap_single(info_p->pci_dev, (dma_addr_t) c->req.sg[0].addr, -@@ -1549,9 +1549,9 @@ static int revalidate_allvol(ctlr_info_t *host) - * we check the new geometry. Then turn interrupts back on when - * we're done. - */ -- host->access.set_intr_mask(host, 0); -+ host->access->set_intr_mask(host, 0); - getgeometry(ctlr); -- host->access.set_intr_mask(host, FIFO_NOT_EMPTY); -+ host->access->set_intr_mask(host, FIFO_NOT_EMPTY); - - for(i=0; i<NWD; i++) { - struct gendisk *disk = ida_gendisk[ctlr][i]; -@@ -1591,7 +1591,7 @@ static int pollcomplete(int ctlr) - /* Wait (up to 2 seconds) for a command to complete */ - - for (i = 200000; i > 0; i--) { -- done = hba[ctlr]->access.command_completed(hba[ctlr]); -+ done = hba[ctlr]->access->command_completed(hba[ctlr]); - if (done == 0) { - udelay(10); /* a short fixed delay */ - } else -diff --git a/drivers/block/cpqarray.h b/drivers/block/cpqarray.h -index be73e9d..7fbf140 100644 ---- a/drivers/block/cpqarray.h -+++ b/drivers/block/cpqarray.h -@@ -99,7 +99,7 @@ struct ctlr_info { - drv_info_t drv[NWD]; - struct proc_dir_entry *proc; - -- struct access_method access; -+ struct access_method *access; - - cmdlist_t *reqQ; - cmdlist_t *cmpQ; -diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h -index 8d68056..e67050f 100644 ---- a/drivers/block/drbd/drbd_int.h -+++ b/drivers/block/drbd/drbd_int.h -@@ -736,7 +736,7 @@ struct drbd_request; - struct drbd_epoch { - struct list_head list; - unsigned int barrier_nr; -- atomic_t epoch_size; /* increased on every request added. */ -+ atomic_unchecked_t epoch_size; /* increased on every request added. */ - atomic_t active; /* increased on every req. added, and dec on every finished. */ - unsigned long flags; - }; -@@ -1108,7 +1108,7 @@ struct drbd_conf { - void *int_dig_in; - void *int_dig_vv; - wait_queue_head_t seq_wait; -- atomic_t packet_seq; -+ atomic_unchecked_t packet_seq; - unsigned int peer_seq; - spinlock_t peer_seq_lock; - unsigned int minor; -@@ -1617,30 +1617,30 @@ static inline int drbd_setsockopt(struct socket *sock, int level, int optname, - - static inline void drbd_tcp_cork(struct socket *sock) - { -- int __user val = 1; -+ int val = 1; - (void) drbd_setsockopt(sock, SOL_TCP, TCP_CORK, -- (char __user *)&val, sizeof(val)); -+ (char __force_user *)&val, sizeof(val)); - } - - static inline void drbd_tcp_uncork(struct socket *sock) - { -- int __user val = 0; -+ int val = 0; - (void) drbd_setsockopt(sock, SOL_TCP, TCP_CORK, -- (char __user *)&val, sizeof(val)); -+ (char __force_user *)&val, sizeof(val)); - } - - static inline void drbd_tcp_nodelay(struct socket *sock) - { -- int __user val = 1; -+ int val = 1; - (void) drbd_setsockopt(sock, SOL_TCP, TCP_NODELAY, -- (char __user *)&val, sizeof(val)); -+ (char __force_user *)&val, sizeof(val)); - } - - static inline void drbd_tcp_quickack(struct socket *sock) - { -- int __user val = 2; -+ int val = 2; - (void) drbd_setsockopt(sock, SOL_TCP, TCP_QUICKACK, -- (char __user *)&val, sizeof(val)); -+ (char __force_user *)&val, sizeof(val)); - } - - void drbd_bump_write_ordering(struct drbd_conf *mdev, enum write_ordering_e wo); -diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c -index 211fc44..c5116f1 100644 ---- a/drivers/block/drbd/drbd_main.c -+++ b/drivers/block/drbd/drbd_main.c -@@ -2397,7 +2397,7 @@ static int _drbd_send_ack(struct drbd_conf *mdev, enum drbd_packets cmd, - p.sector = sector; - p.block_id = block_id; - p.blksize = blksize; -- p.seq_num = cpu_to_be32(atomic_add_return(1, &mdev->packet_seq)); -+ p.seq_num = cpu_to_be32(atomic_add_return_unchecked(1, &mdev->packet_seq)); - - if (!mdev->meta.socket || mdev->state.conn < C_CONNECTED) - return false; -@@ -2696,7 +2696,7 @@ int drbd_send_dblock(struct drbd_conf *mdev, struct drbd_request *req) - p.sector = cpu_to_be64(req->sector); - p.block_id = (unsigned long)req; - p.seq_num = cpu_to_be32(req->seq_num = -- atomic_add_return(1, &mdev->packet_seq)); -+ atomic_add_return_unchecked(1, &mdev->packet_seq)); - - dp_flags = bio_flags_to_wire(mdev, req->master_bio->bi_rw); - -@@ -2981,7 +2981,7 @@ void drbd_init_set_defaults(struct drbd_conf *mdev) - atomic_set(&mdev->unacked_cnt, 0); - atomic_set(&mdev->local_cnt, 0); - atomic_set(&mdev->net_cnt, 0); -- atomic_set(&mdev->packet_seq, 0); -+ atomic_set_unchecked(&mdev->packet_seq, 0); - atomic_set(&mdev->pp_in_use, 0); - atomic_set(&mdev->pp_in_use_by_net, 0); - atomic_set(&mdev->rs_sect_in, 0); -@@ -3063,8 +3063,8 @@ void drbd_mdev_cleanup(struct drbd_conf *mdev) - mdev->receiver.t_state); - - /* no need to lock it, I'm the only thread alive */ -- if (atomic_read(&mdev->current_epoch->epoch_size) != 0) -- dev_err(DEV, "epoch_size:%d\n", atomic_read(&mdev->current_epoch->epoch_size)); -+ if (atomic_read_unchecked(&mdev->current_epoch->epoch_size) != 0) -+ dev_err(DEV, "epoch_size:%d\n", atomic_read_unchecked(&mdev->current_epoch->epoch_size)); - mdev->al_writ_cnt = - mdev->bm_writ_cnt = - mdev->read_cnt = -diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c -index 946166e..356b39a 100644 ---- a/drivers/block/drbd/drbd_nl.c -+++ b/drivers/block/drbd/drbd_nl.c -@@ -2359,7 +2359,7 @@ static void drbd_connector_callback(struct cn_msg *req, struct netlink_skb_parms - module_put(THIS_MODULE); - } - --static atomic_t drbd_nl_seq = ATOMIC_INIT(2); /* two. */ -+static atomic_unchecked_t drbd_nl_seq = ATOMIC_INIT(2); /* two. */ - - static unsigned short * - __tl_add_blob(unsigned short *tl, enum drbd_tags tag, const void *data, -@@ -2430,7 +2430,7 @@ void drbd_bcast_state(struct drbd_conf *mdev, union drbd_state state) - cn_reply->id.idx = CN_IDX_DRBD; - cn_reply->id.val = CN_VAL_DRBD; - -- cn_reply->seq = atomic_add_return(1, &drbd_nl_seq); -+ cn_reply->seq = atomic_add_return_unchecked(1, &drbd_nl_seq); - cn_reply->ack = 0; /* not used here. */ - cn_reply->len = sizeof(struct drbd_nl_cfg_reply) + - (int)((char *)tl - (char *)reply->tag_list); -@@ -2462,7 +2462,7 @@ void drbd_bcast_ev_helper(struct drbd_conf *mdev, char *helper_name) - cn_reply->id.idx = CN_IDX_DRBD; - cn_reply->id.val = CN_VAL_DRBD; - -- cn_reply->seq = atomic_add_return(1, &drbd_nl_seq); -+ cn_reply->seq = atomic_add_return_unchecked(1, &drbd_nl_seq); - cn_reply->ack = 0; /* not used here. */ - cn_reply->len = sizeof(struct drbd_nl_cfg_reply) + - (int)((char *)tl - (char *)reply->tag_list); -@@ -2540,7 +2540,7 @@ void drbd_bcast_ee(struct drbd_conf *mdev, - cn_reply->id.idx = CN_IDX_DRBD; - cn_reply->id.val = CN_VAL_DRBD; - -- cn_reply->seq = atomic_add_return(1,&drbd_nl_seq); -+ cn_reply->seq = atomic_add_return_unchecked(1,&drbd_nl_seq); - cn_reply->ack = 0; // not used here. - cn_reply->len = sizeof(struct drbd_nl_cfg_reply) + - (int)((char*)tl - (char*)reply->tag_list); -@@ -2579,7 +2579,7 @@ void drbd_bcast_sync_progress(struct drbd_conf *mdev) - cn_reply->id.idx = CN_IDX_DRBD; - cn_reply->id.val = CN_VAL_DRBD; - -- cn_reply->seq = atomic_add_return(1, &drbd_nl_seq); -+ cn_reply->seq = atomic_add_return_unchecked(1, &drbd_nl_seq); - cn_reply->ack = 0; /* not used here. */ - cn_reply->len = sizeof(struct drbd_nl_cfg_reply) + - (int)((char *)tl - (char *)reply->tag_list); -diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c -index 43beaca..4a5b1dd 100644 ---- a/drivers/block/drbd/drbd_receiver.c -+++ b/drivers/block/drbd/drbd_receiver.c -@@ -894,7 +894,7 @@ retry: - sock->sk->sk_sndtimeo = mdev->net_conf->timeout*HZ/10; - sock->sk->sk_rcvtimeo = MAX_SCHEDULE_TIMEOUT; - -- atomic_set(&mdev->packet_seq, 0); -+ atomic_set_unchecked(&mdev->packet_seq, 0); - mdev->peer_seq = 0; - - drbd_thread_start(&mdev->asender); -@@ -985,7 +985,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_conf *mdev, - do { - next_epoch = NULL; - -- epoch_size = atomic_read(&epoch->epoch_size); -+ epoch_size = atomic_read_unchecked(&epoch->epoch_size); - - switch (ev & ~EV_CLEANUP) { - case EV_PUT: -@@ -1020,7 +1020,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_conf *mdev, - rv = FE_DESTROYED; - } else { - epoch->flags = 0; -- atomic_set(&epoch->epoch_size, 0); -+ atomic_set_unchecked(&epoch->epoch_size, 0); - /* atomic_set(&epoch->active, 0); is already zero */ - if (rv == FE_STILL_LIVE) - rv = FE_RECYCLED; -@@ -1191,14 +1191,14 @@ static int receive_Barrier(struct drbd_conf *mdev, enum drbd_packets cmd, unsign - drbd_wait_ee_list_empty(mdev, &mdev->active_ee); - drbd_flush(mdev); - -- if (atomic_read(&mdev->current_epoch->epoch_size)) { -+ if (atomic_read_unchecked(&mdev->current_epoch->epoch_size)) { - epoch = kmalloc(sizeof(struct drbd_epoch), GFP_NOIO); - if (epoch) - break; - } - - epoch = mdev->current_epoch; -- wait_event(mdev->ee_wait, atomic_read(&epoch->epoch_size) == 0); -+ wait_event(mdev->ee_wait, atomic_read_unchecked(&epoch->epoch_size) == 0); - - D_ASSERT(atomic_read(&epoch->active) == 0); - D_ASSERT(epoch->flags == 0); -@@ -1210,11 +1210,11 @@ static int receive_Barrier(struct drbd_conf *mdev, enum drbd_packets cmd, unsign - } - - epoch->flags = 0; -- atomic_set(&epoch->epoch_size, 0); -+ atomic_set_unchecked(&epoch->epoch_size, 0); - atomic_set(&epoch->active, 0); - - spin_lock(&mdev->epoch_lock); -- if (atomic_read(&mdev->current_epoch->epoch_size)) { -+ if (atomic_read_unchecked(&mdev->current_epoch->epoch_size)) { - list_add(&epoch->list, &mdev->current_epoch->list); - mdev->current_epoch = epoch; - mdev->epochs++; -@@ -1663,7 +1663,7 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned - spin_unlock(&mdev->peer_seq_lock); - - drbd_send_ack_dp(mdev, P_NEG_ACK, p, data_size); -- atomic_inc(&mdev->current_epoch->epoch_size); -+ atomic_inc_unchecked(&mdev->current_epoch->epoch_size); - return drbd_drain_block(mdev, data_size); - } - -@@ -1689,7 +1689,7 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned - - spin_lock(&mdev->epoch_lock); - e->epoch = mdev->current_epoch; -- atomic_inc(&e->epoch->epoch_size); -+ atomic_inc_unchecked(&e->epoch->epoch_size); - atomic_inc(&e->epoch->active); - spin_unlock(&mdev->epoch_lock); - -@@ -3885,7 +3885,7 @@ static void drbd_disconnect(struct drbd_conf *mdev) - D_ASSERT(list_empty(&mdev->done_ee)); - - /* ok, no more ee's on the fly, it is safe to reset the epoch_size */ -- atomic_set(&mdev->current_epoch->epoch_size, 0); -+ atomic_set_unchecked(&mdev->current_epoch->epoch_size, 0); - D_ASSERT(list_empty(&mdev->current_epoch->list)); - } - -diff --git a/drivers/block/loop.c b/drivers/block/loop.c -index bbca966..65e37dd 100644 ---- a/drivers/block/loop.c -+++ b/drivers/block/loop.c -@@ -226,7 +226,7 @@ static int __do_lo_send_write(struct file *file, - mm_segment_t old_fs = get_fs(); - - set_fs(get_ds()); -- bw = file->f_op->write(file, buf, len, &pos); -+ bw = file->f_op->write(file, (const char __force_user *)buf, len, &pos); - set_fs(old_fs); - if (likely(bw == len)) - return 0; -diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig -index ee94686..3e09ad3 100644 ---- a/drivers/char/Kconfig -+++ b/drivers/char/Kconfig -@@ -8,7 +8,8 @@ source "drivers/tty/Kconfig" - - config DEVKMEM - bool "/dev/kmem virtual device support" -- default y -+ default n -+ depends on !GRKERNSEC_KMEM - help - Say Y here if you want to support the /dev/kmem device. The - /dev/kmem device is rarely used, but can be used for certain -@@ -581,6 +582,7 @@ config DEVPORT - bool - depends on !M68K - depends on ISA || PCI -+ depends on !GRKERNSEC_KMEM - default y - - source "drivers/s390/char/Kconfig" -diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c -index 2e04433..22afc64 100644 ---- a/drivers/char/agp/frontend.c -+++ b/drivers/char/agp/frontend.c -@@ -817,7 +817,7 @@ static int agpioc_reserve_wrap(struct agp_file_private *priv, void __user *arg) - if (copy_from_user(&reserve, arg, sizeof(struct agp_region))) - return -EFAULT; - -- if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment)) -+ if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment_priv)) - return -EFAULT; - - client = agp_find_client_by_pid(reserve.pid); -diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c -index 21cb980..f15107c 100644 ---- a/drivers/char/genrtc.c -+++ b/drivers/char/genrtc.c -@@ -272,6 +272,7 @@ static int gen_rtc_ioctl(struct file *file, - switch (cmd) { - - case RTC_PLL_GET: -+ memset(&pll, 0, sizeof(pll)); - if (get_rtc_pll(&pll)) - return -EINVAL; - else -diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c -index dfd7876..c0b0885 100644 ---- a/drivers/char/hpet.c -+++ b/drivers/char/hpet.c -@@ -571,7 +571,7 @@ static inline unsigned long hpet_time_div(struct hpets *hpets, - } - - static int --hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg, -+hpet_ioctl_common(struct hpet_dev *devp, unsigned int cmd, unsigned long arg, - struct hpet_info *info) - { - struct hpet_timer __iomem *timer; -diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c -index 2c29942..604c5ba 100644 ---- a/drivers/char/ipmi/ipmi_msghandler.c -+++ b/drivers/char/ipmi/ipmi_msghandler.c -@@ -420,7 +420,7 @@ struct ipmi_smi { - struct proc_dir_entry *proc_dir; - char proc_dir_name[10]; - -- atomic_t stats[IPMI_NUM_STATS]; -+ atomic_unchecked_t stats[IPMI_NUM_STATS]; - - /* - * run_to_completion duplicate of smb_info, smi_info -@@ -453,9 +453,9 @@ static DEFINE_MUTEX(smi_watchers_mutex); - - - #define ipmi_inc_stat(intf, stat) \ -- atomic_inc(&(intf)->stats[IPMI_STAT_ ## stat]) -+ atomic_inc_unchecked(&(intf)->stats[IPMI_STAT_ ## stat]) - #define ipmi_get_stat(intf, stat) \ -- ((unsigned int) atomic_read(&(intf)->stats[IPMI_STAT_ ## stat])) -+ ((unsigned int) atomic_read_unchecked(&(intf)->stats[IPMI_STAT_ ## stat])) - - static int is_lan_addr(struct ipmi_addr *addr) - { -@@ -2884,7 +2884,7 @@ int ipmi_register_smi(struct ipmi_smi_handlers *handlers, - INIT_LIST_HEAD(&intf->cmd_rcvrs); - init_waitqueue_head(&intf->waitq); - for (i = 0; i < IPMI_NUM_STATS; i++) -- atomic_set(&intf->stats[i], 0); -+ atomic_set_unchecked(&intf->stats[i], 0); - - intf->proc_dir = NULL; - -diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c -index 1e638ff..a869ef5 100644 ---- a/drivers/char/ipmi/ipmi_si_intf.c -+++ b/drivers/char/ipmi/ipmi_si_intf.c -@@ -275,7 +275,7 @@ struct smi_info { - unsigned char slave_addr; - - /* Counters and things for the proc filesystem. */ -- atomic_t stats[SI_NUM_STATS]; -+ atomic_unchecked_t stats[SI_NUM_STATS]; - - struct task_struct *thread; - -@@ -284,9 +284,9 @@ struct smi_info { - }; - - #define smi_inc_stat(smi, stat) \ -- atomic_inc(&(smi)->stats[SI_STAT_ ## stat]) -+ atomic_inc_unchecked(&(smi)->stats[SI_STAT_ ## stat]) - #define smi_get_stat(smi, stat) \ -- ((unsigned int) atomic_read(&(smi)->stats[SI_STAT_ ## stat])) -+ ((unsigned int) atomic_read_unchecked(&(smi)->stats[SI_STAT_ ## stat])) - - #define SI_MAX_PARMS 4 - -@@ -3209,7 +3209,7 @@ static int try_smi_init(struct smi_info *new_smi) - atomic_set(&new_smi->req_events, 0); - new_smi->run_to_completion = 0; - for (i = 0; i < SI_NUM_STATS; i++) -- atomic_set(&new_smi->stats[i], 0); -+ atomic_set_unchecked(&new_smi->stats[i], 0); - - new_smi->interrupt_disabled = 1; - atomic_set(&new_smi->stop_operation, 0); -diff --git a/drivers/char/mbcs.c b/drivers/char/mbcs.c -index 47ff7e4..0c7d340 100644 ---- a/drivers/char/mbcs.c -+++ b/drivers/char/mbcs.c -@@ -799,7 +799,7 @@ static int mbcs_remove(struct cx_dev *dev) - return 0; - } - --static const struct cx_device_id __devinitdata mbcs_id_table[] = { -+static const struct cx_device_id __devinitconst mbcs_id_table[] = { - { - .part_num = MBCS_PART_NUM, - .mfg_num = MBCS_MFG_NUM, -diff --git a/drivers/char/mem.c b/drivers/char/mem.c -index d6e9d08..4493e89 100644 ---- a/drivers/char/mem.c -+++ b/drivers/char/mem.c -@@ -18,6 +18,7 @@ - #include <linux/raw.h> - #include <linux/tty.h> - #include <linux/capability.h> -+#include <linux/security.h> - #include <linux/ptrace.h> - #include <linux/device.h> - #include <linux/highmem.h> -@@ -35,6 +36,10 @@ - # include <linux/efi.h> - #endif - -+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC) -+extern const struct file_operations grsec_fops; -+#endif -+ - static inline unsigned long size_inside_page(unsigned long start, - unsigned long size) - { -@@ -66,9 +71,13 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size) - - while (cursor < to) { - if (!devmem_is_allowed(pfn)) { -+#ifdef CONFIG_GRKERNSEC_KMEM -+ gr_handle_mem_readwrite(from, to); -+#else - printk(KERN_INFO - "Program %s tried to access /dev/mem between %Lx->%Lx.\n", - current->comm, from, to); -+#endif - return 0; - } - cursor += PAGE_SIZE; -@@ -76,6 +85,11 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size) - } - return 1; - } -+#elif defined(CONFIG_GRKERNSEC_KMEM) -+static inline int range_is_allowed(unsigned long pfn, unsigned long size) -+{ -+ return 0; -+} - #else - static inline int range_is_allowed(unsigned long pfn, unsigned long size) - { -@@ -118,6 +132,7 @@ static ssize_t read_mem(struct file *file, char __user *buf, - - while (count > 0) { - unsigned long remaining; -+ char *temp; - - sz = size_inside_page(p, count); - -@@ -133,7 +148,23 @@ static ssize_t read_mem(struct file *file, char __user *buf, - if (!ptr) - return -EFAULT; - -- remaining = copy_to_user(buf, ptr, sz); -+#ifdef CONFIG_PAX_USERCOPY -+ temp = kmalloc(sz, GFP_KERNEL); -+ if (!temp) { -+ unxlate_dev_mem_ptr(p, ptr); -+ return -ENOMEM; -+ } -+ memcpy(temp, ptr, sz); -+#else -+ temp = ptr; -+#endif -+ -+ remaining = copy_to_user(buf, temp, sz); -+ -+#ifdef CONFIG_PAX_USERCOPY -+ kfree(temp); -+#endif -+ - unxlate_dev_mem_ptr(p, ptr); - if (remaining) - return -EFAULT; -@@ -396,9 +427,8 @@ static ssize_t read_kmem(struct file *file, char __user *buf, - size_t count, loff_t *ppos) - { - unsigned long p = *ppos; -- ssize_t low_count, read, sz; -+ ssize_t low_count, read, sz, err = 0; - char * kbuf; /* k-addr because vread() takes vmlist_lock rwlock */ -- int err = 0; - - read = 0; - if (p < (unsigned long) high_memory) { -@@ -420,6 +450,8 @@ static ssize_t read_kmem(struct file *file, char __user *buf, - } - #endif - while (low_count > 0) { -+ char *temp; -+ - sz = size_inside_page(p, low_count); - - /* -@@ -429,7 +461,22 @@ static ssize_t read_kmem(struct file *file, char __user *buf, - */ - kbuf = xlate_dev_kmem_ptr((char *)p); - -- if (copy_to_user(buf, kbuf, sz)) -+#ifdef CONFIG_PAX_USERCOPY -+ temp = kmalloc(sz, GFP_KERNEL); -+ if (!temp) -+ return -ENOMEM; -+ memcpy(temp, kbuf, sz); -+#else -+ temp = kbuf; -+#endif -+ -+ err = copy_to_user(buf, temp, sz); -+ -+#ifdef CONFIG_PAX_USERCOPY -+ kfree(temp); -+#endif -+ -+ if (err) - return -EFAULT; - buf += sz; - p += sz; -@@ -867,6 +914,9 @@ static const struct memdev { - #ifdef CONFIG_CRASH_DUMP - [12] = { "oldmem", 0, &oldmem_fops, NULL }, - #endif -+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC) -+ [13] = { "grsec",S_IRUSR | S_IWUGO, &grsec_fops, NULL }, -+#endif - }; - - static int memory_open(struct inode *inode, struct file *filp) -diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c -index 9df78e2..01ba9ae 100644 ---- a/drivers/char/nvram.c -+++ b/drivers/char/nvram.c -@@ -247,7 +247,7 @@ static ssize_t nvram_read(struct file *file, char __user *buf, - - spin_unlock_irq(&rtc_lock); - -- if (copy_to_user(buf, contents, tmp - contents)) -+ if (tmp - contents > sizeof(contents) || copy_to_user(buf, contents, tmp - contents)) - return -EFAULT; - - *ppos = i; -diff --git a/drivers/char/random.c b/drivers/char/random.c -index 4ec04a7..4a092ed 100644 ---- a/drivers/char/random.c -+++ b/drivers/char/random.c -@@ -261,8 +261,13 @@ - /* - * Configuration information - */ -+#ifdef CONFIG_GRKERNSEC_RANDNET -+#define INPUT_POOL_WORDS 512 -+#define OUTPUT_POOL_WORDS 128 -+#else - #define INPUT_POOL_WORDS 128 - #define OUTPUT_POOL_WORDS 32 -+#endif - #define SEC_XFER_SIZE 512 - #define EXTRACT_SIZE 10 - -@@ -300,10 +305,17 @@ static struct poolinfo { - int poolwords; - int tap1, tap2, tap3, tap4, tap5; - } poolinfo_table[] = { -+#ifdef CONFIG_GRKERNSEC_RANDNET -+ /* x^512 + x^411 + x^308 + x^208 +x^104 + x + 1 -- 225 */ -+ { 512, 411, 308, 208, 104, 1 }, -+ /* x^128 + x^103 + x^76 + x^51 + x^25 + x + 1 -- 105 */ -+ { 128, 103, 76, 51, 25, 1 }, -+#else - /* x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 -- 105 */ - { 128, 103, 76, 51, 25, 1 }, - /* x^32 + x^26 + x^20 + x^14 + x^7 + x + 1 -- 15 */ - { 32, 26, 20, 14, 7, 1 }, -+#endif - #if 0 - /* x^2048 + x^1638 + x^1231 + x^819 + x^411 + x + 1 -- 115 */ - { 2048, 1638, 1231, 819, 411, 1 }, -@@ -913,7 +925,7 @@ static ssize_t extract_entropy_user(struct entropy_store *r, void __user *buf, - - extract_buf(r, tmp); - i = min_t(int, nbytes, EXTRACT_SIZE); -- if (copy_to_user(buf, tmp, i)) { -+ if (i > sizeof(tmp) || copy_to_user(buf, tmp, i)) { - ret = -EFAULT; - break; - } -@@ -1238,7 +1250,7 @@ EXPORT_SYMBOL(generate_random_uuid); - #include <linux/sysctl.h> - - static int min_read_thresh = 8, min_write_thresh; --static int max_read_thresh = INPUT_POOL_WORDS * 32; -+static int max_read_thresh = OUTPUT_POOL_WORDS * 32; - static int max_write_thresh = INPUT_POOL_WORDS * 32; - static char sysctl_bootid[16]; - -diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c -index 45713f0..8286d21 100644 ---- a/drivers/char/sonypi.c -+++ b/drivers/char/sonypi.c -@@ -54,6 +54,7 @@ - - #include <asm/uaccess.h> - #include <asm/io.h> -+#include <asm/local.h> - - #include <linux/sonypi.h> - -@@ -490,7 +491,7 @@ static struct sonypi_device { - spinlock_t fifo_lock; - wait_queue_head_t fifo_proc_list; - struct fasync_struct *fifo_async; -- int open_count; -+ local_t open_count; - int model; - struct input_dev *input_jog_dev; - struct input_dev *input_key_dev; -@@ -897,7 +898,7 @@ static int sonypi_misc_fasync(int fd, struct file *filp, int on) - static int sonypi_misc_release(struct inode *inode, struct file *file) - { - mutex_lock(&sonypi_device.lock); -- sonypi_device.open_count--; -+ local_dec(&sonypi_device.open_count); - mutex_unlock(&sonypi_device.lock); - return 0; - } -@@ -906,9 +907,9 @@ static int sonypi_misc_open(struct inode *inode, struct file *file) - { - mutex_lock(&sonypi_device.lock); - /* Flush input queue on first open */ -- if (!sonypi_device.open_count) -+ if (!local_read(&sonypi_device.open_count)) - kfifo_reset(&sonypi_device.fifo); -- sonypi_device.open_count++; -+ local_inc(&sonypi_device.open_count); - mutex_unlock(&sonypi_device.lock); - - return 0; -diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c -index ad7c732..5aa8054 100644 ---- a/drivers/char/tpm/tpm.c -+++ b/drivers/char/tpm/tpm.c -@@ -415,7 +415,7 @@ static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf, - chip->vendor.req_complete_val) - goto out_recv; - -- if ((status == chip->vendor.req_canceled)) { -+ if (status == chip->vendor.req_canceled) { - dev_err(chip->dev, "Operation Canceled\n"); - rc = -ECANCELED; - goto out; -diff --git a/drivers/char/tpm/tpm_bios.c b/drivers/char/tpm/tpm_bios.c -index 0636520..169c1d0 100644 ---- a/drivers/char/tpm/tpm_bios.c -+++ b/drivers/char/tpm/tpm_bios.c -@@ -173,7 +173,7 @@ static void *tpm_bios_measurements_start(struct seq_file *m, loff_t *pos) - event = addr; - - if ((event->event_type == 0 && event->event_size == 0) || -- ((addr + sizeof(struct tcpa_event) + event->event_size) >= limit)) -+ (event->event_size >= limit - addr - sizeof(struct tcpa_event))) - return NULL; - - return addr; -@@ -198,7 +198,7 @@ static void *tpm_bios_measurements_next(struct seq_file *m, void *v, - return NULL; - - if ((event->event_type == 0 && event->event_size == 0) || -- ((v + sizeof(struct tcpa_event) + event->event_size) >= limit)) -+ (event->event_size >= limit - v - sizeof(struct tcpa_event))) - return NULL; - - (*pos)++; -@@ -291,7 +291,8 @@ static int tpm_binary_bios_measurements_show(struct seq_file *m, void *v) - int i; - - for (i = 0; i < sizeof(struct tcpa_event) + event->event_size; i++) -- seq_putc(m, data[i]); -+ if (!seq_putc(m, data[i])) -+ return -EFAULT; - - return 0; - } -@@ -410,8 +411,13 @@ static int read_log(struct tpm_bios_log *log) - log->bios_event_log_end = log->bios_event_log + len; - - virt = acpi_os_map_memory(start, len); -+ if (!virt) { -+ kfree(log->bios_event_log); -+ log->bios_event_log = NULL; -+ return -EFAULT; -+ } - -- memcpy(log->bios_event_log, virt, len); -+ memcpy(log->bios_event_log, (const char __force_kernel *)virt, len); - - acpi_os_unmap_memory(virt, len); - return 0; -diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c -index cdf2f54..e55c197 100644 ---- a/drivers/char/virtio_console.c -+++ b/drivers/char/virtio_console.c -@@ -563,7 +563,7 @@ static ssize_t fill_readbuf(struct port *port, char *out_buf, size_t out_count, - if (to_user) { - ssize_t ret; - -- ret = copy_to_user(out_buf, buf->buf + buf->offset, out_count); -+ ret = copy_to_user((char __force_user *)out_buf, buf->buf + buf->offset, out_count); - if (ret) - return -EFAULT; - } else { -@@ -662,7 +662,7 @@ static ssize_t port_fops_read(struct file *filp, char __user *ubuf, - if (!port_has_data(port) && !port->host_connected) - return 0; - -- return fill_readbuf(port, ubuf, count, true); -+ return fill_readbuf(port, (char __force_kernel *)ubuf, count, true); - } - - static ssize_t port_fops_write(struct file *filp, const char __user *ubuf, -diff --git a/drivers/edac/edac_pci_sysfs.c b/drivers/edac/edac_pci_sysfs.c -index 97f5064..202b6e6 100644 ---- a/drivers/edac/edac_pci_sysfs.c -+++ b/drivers/edac/edac_pci_sysfs.c -@@ -26,8 +26,8 @@ static int edac_pci_log_pe = 1; /* log PCI parity errors */ - static int edac_pci_log_npe = 1; /* log PCI non-parity error errors */ - static int edac_pci_poll_msec = 1000; /* one second workq period */ - --static atomic_t pci_parity_count = ATOMIC_INIT(0); --static atomic_t pci_nonparity_count = ATOMIC_INIT(0); -+static atomic_unchecked_t pci_parity_count = ATOMIC_INIT(0); -+static atomic_unchecked_t pci_nonparity_count = ATOMIC_INIT(0); - - static struct kobject *edac_pci_top_main_kobj; - static atomic_t edac_pci_sysfs_refcount = ATOMIC_INIT(0); -@@ -582,7 +582,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev) - edac_printk(KERN_CRIT, EDAC_PCI, - "Signaled System Error on %s\n", - pci_name(dev)); -- atomic_inc(&pci_nonparity_count); -+ atomic_inc_unchecked(&pci_nonparity_count); - } - - if (status & (PCI_STATUS_PARITY)) { -@@ -590,7 +590,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev) - "Master Data Parity Error on %s\n", - pci_name(dev)); - -- atomic_inc(&pci_parity_count); -+ atomic_inc_unchecked(&pci_parity_count); - } - - if (status & (PCI_STATUS_DETECTED_PARITY)) { -@@ -598,7 +598,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev) - "Detected Parity Error on %s\n", - pci_name(dev)); - -- atomic_inc(&pci_parity_count); -+ atomic_inc_unchecked(&pci_parity_count); - } - } - -@@ -619,7 +619,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev) - edac_printk(KERN_CRIT, EDAC_PCI, "Bridge " - "Signaled System Error on %s\n", - pci_name(dev)); -- atomic_inc(&pci_nonparity_count); -+ atomic_inc_unchecked(&pci_nonparity_count); - } - - if (status & (PCI_STATUS_PARITY)) { -@@ -627,7 +627,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev) - "Master Data Parity Error on " - "%s\n", pci_name(dev)); - -- atomic_inc(&pci_parity_count); -+ atomic_inc_unchecked(&pci_parity_count); - } - - if (status & (PCI_STATUS_DETECTED_PARITY)) { -@@ -635,7 +635,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev) - "Detected Parity Error on %s\n", - pci_name(dev)); - -- atomic_inc(&pci_parity_count); -+ atomic_inc_unchecked(&pci_parity_count); - } - } - } -@@ -677,7 +677,7 @@ void edac_pci_do_parity_check(void) - if (!check_pci_errors) - return; - -- before_count = atomic_read(&pci_parity_count); -+ before_count = atomic_read_unchecked(&pci_parity_count); - - /* scan all PCI devices looking for a Parity Error on devices and - * bridges. -@@ -689,7 +689,7 @@ void edac_pci_do_parity_check(void) - /* Only if operator has selected panic on PCI Error */ - if (edac_pci_get_panic_on_pe()) { - /* If the count is different 'after' from 'before' */ -- if (before_count != atomic_read(&pci_parity_count)) -+ if (before_count != atomic_read_unchecked(&pci_parity_count)) - panic("EDAC: PCI Parity Error"); - } - } -diff --git a/drivers/edac/mce_amd.h b/drivers/edac/mce_amd.h -index c6074c5..88a9e2e 100644 ---- a/drivers/edac/mce_amd.h -+++ b/drivers/edac/mce_amd.h -@@ -82,7 +82,7 @@ extern const char * const ii_msgs[]; - struct amd_decoder_ops { - bool (*dc_mce)(u16, u8); - bool (*ic_mce)(u16, u8); --}; -+} __no_const; - - void amd_report_gart_errors(bool); - void amd_register_ecc_decoder(void (*f)(int, struct mce *)); -diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c -index cc595eb..4ec702a 100644 ---- a/drivers/firewire/core-card.c -+++ b/drivers/firewire/core-card.c -@@ -679,7 +679,7 @@ void fw_card_release(struct kref *kref) - - void fw_core_remove_card(struct fw_card *card) - { -- struct fw_card_driver dummy_driver = dummy_driver_template; -+ fw_card_driver_no_const dummy_driver = dummy_driver_template; - - card->driver->update_phy_reg(card, 4, - PHY_LINK_ACTIVE | PHY_CONTENDER, 0); -diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c -index 2e6b245..c3857d9 100644 ---- a/drivers/firewire/core-cdev.c -+++ b/drivers/firewire/core-cdev.c -@@ -1341,8 +1341,7 @@ static int init_iso_resource(struct client *client, - int ret; - - if ((request->channels == 0 && request->bandwidth == 0) || -- request->bandwidth > BANDWIDTH_AVAILABLE_INITIAL || -- request->bandwidth < 0) -+ request->bandwidth > BANDWIDTH_AVAILABLE_INITIAL) - return -EINVAL; - - r = kmalloc(sizeof(*r), GFP_KERNEL); -diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c -index dea2dcc..a4fb978 100644 ---- a/drivers/firewire/core-transaction.c -+++ b/drivers/firewire/core-transaction.c -@@ -37,6 +37,7 @@ - #include <linux/timer.h> - #include <linux/types.h> - #include <linux/workqueue.h> -+#include <linux/sched.h> - - #include <asm/byteorder.h> - -diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h -index 9047f55..e47c7ff 100644 ---- a/drivers/firewire/core.h -+++ b/drivers/firewire/core.h -@@ -110,6 +110,7 @@ struct fw_card_driver { - - int (*stop_iso)(struct fw_iso_context *ctx); - }; -+typedef struct fw_card_driver __no_const fw_card_driver_no_const; - - void fw_card_initialize(struct fw_card *card, - const struct fw_card_driver *driver, struct device *device); -diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c -index 153980b..4b4d046 100644 ---- a/drivers/firmware/dmi_scan.c -+++ b/drivers/firmware/dmi_scan.c -@@ -449,11 +449,6 @@ void __init dmi_scan_machine(void) - } - } - else { -- /* -- * no iounmap() for that ioremap(); it would be a no-op, but -- * it's so early in setup that sucker gets confused into doing -- * what it shouldn't if we actually call it. -- */ - p = dmi_ioremap(0xF0000, 0x10000); - if (p == NULL) - goto error; -@@ -723,7 +718,7 @@ int dmi_walk(void (*decode)(const struct dmi_header *, void *), - if (buf == NULL) - return -1; - -- dmi_table(buf, dmi_len, dmi_num, decode, private_data); -+ dmi_table((char __force_kernel *)buf, dmi_len, dmi_num, decode, private_data); - - iounmap(buf); - return 0; -diff --git a/drivers/gpio/gpio-vr41xx.c b/drivers/gpio/gpio-vr41xx.c -index 82d5c20..44a7177 100644 ---- a/drivers/gpio/gpio-vr41xx.c -+++ b/drivers/gpio/gpio-vr41xx.c -@@ -204,7 +204,7 @@ static int giu_get_irq(unsigned int irq) - printk(KERN_ERR "spurious GIU interrupt: %04x(%04x),%04x(%04x)\n", - maskl, pendl, maskh, pendh); - -- atomic_inc(&irq_err_count); -+ atomic_inc_unchecked(&irq_err_count); - - return -EINVAL; - } -diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c -index 8111889..367b253 100644 ---- a/drivers/gpu/drm/drm_crtc_helper.c -+++ b/drivers/gpu/drm/drm_crtc_helper.c -@@ -286,7 +286,7 @@ static bool drm_encoder_crtc_ok(struct drm_encoder *encoder, - struct drm_crtc *tmp; - int crtc_mask = 1; - -- WARN(!crtc, "checking null crtc?\n"); -+ BUG_ON(!crtc); - - dev = crtc->dev; - -diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c -index 6116e3b..c29dd16 100644 ---- a/drivers/gpu/drm/drm_drv.c -+++ b/drivers/gpu/drm/drm_drv.c -@@ -316,7 +316,7 @@ module_exit(drm_core_exit); - /** - * Copy and IOCTL return string to user space - */ --static int drm_copy_field(char *buf, size_t *buf_len, const char *value) -+static int drm_copy_field(char __user *buf, size_t *buf_len, const char *value) - { - int len; - -@@ -399,7 +399,7 @@ long drm_ioctl(struct file *filp, - return -ENODEV; - - atomic_inc(&dev->ioctl_count); -- atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]); -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_IOCTLS]); - ++file_priv->ioctl_count; - - DRM_DEBUG("pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%lx, auth=%d\n", -diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c -index 123de28..43a0897 100644 ---- a/drivers/gpu/drm/drm_fops.c -+++ b/drivers/gpu/drm/drm_fops.c -@@ -71,7 +71,7 @@ static int drm_setup(struct drm_device * dev) - } - - for (i = 0; i < ARRAY_SIZE(dev->counts); i++) -- atomic_set(&dev->counts[i], 0); -+ atomic_set_unchecked(&dev->counts[i], 0); - - dev->sigdata.lock = NULL; - -@@ -138,8 +138,8 @@ int drm_open(struct inode *inode, struct file *filp) - - retcode = drm_open_helper(inode, filp, dev); - if (!retcode) { -- atomic_inc(&dev->counts[_DRM_STAT_OPENS]); -- if (!dev->open_count++) -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_OPENS]); -+ if (local_inc_return(&dev->open_count) == 1) - retcode = drm_setup(dev); - } - if (!retcode) { -@@ -482,7 +482,7 @@ int drm_release(struct inode *inode, struct file *filp) - - mutex_lock(&drm_global_mutex); - -- DRM_DEBUG("open_count = %d\n", dev->open_count); -+ DRM_DEBUG("open_count = %ld\n", local_read(&dev->open_count)); - - if (dev->driver->preclose) - dev->driver->preclose(dev, file_priv); -@@ -491,10 +491,10 @@ int drm_release(struct inode *inode, struct file *filp) - * Begin inline drm_release - */ - -- DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n", -+ DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %ld\n", - task_pid_nr(current), - (long)old_encode_dev(file_priv->minor->device), -- dev->open_count); -+ local_read(&dev->open_count)); - - /* Release any auth tokens that might point to this file_priv, - (do that under the drm_global_mutex) */ -@@ -584,8 +584,8 @@ int drm_release(struct inode *inode, struct file *filp) - * End inline drm_release - */ - -- atomic_inc(&dev->counts[_DRM_STAT_CLOSES]); -- if (!--dev->open_count) { -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_CLOSES]); -+ if (local_dec_and_test(&dev->open_count)) { - if (atomic_read(&dev->ioctl_count)) { - DRM_ERROR("Device busy: %d\n", - atomic_read(&dev->ioctl_count)); -diff --git a/drivers/gpu/drm/drm_global.c b/drivers/gpu/drm/drm_global.c -index c87dc96..326055d 100644 ---- a/drivers/gpu/drm/drm_global.c -+++ b/drivers/gpu/drm/drm_global.c -@@ -36,7 +36,7 @@ - struct drm_global_item { - struct mutex mutex; - void *object; -- int refcount; -+ atomic_t refcount; - }; - - static struct drm_global_item glob[DRM_GLOBAL_NUM]; -@@ -49,7 +49,7 @@ void drm_global_init(void) - struct drm_global_item *item = &glob[i]; - mutex_init(&item->mutex); - item->object = NULL; -- item->refcount = 0; -+ atomic_set(&item->refcount, 0); - } - } - -@@ -59,7 +59,7 @@ void drm_global_release(void) - for (i = 0; i < DRM_GLOBAL_NUM; ++i) { - struct drm_global_item *item = &glob[i]; - BUG_ON(item->object != NULL); -- BUG_ON(item->refcount != 0); -+ BUG_ON(atomic_read(&item->refcount) != 0); - } - } - -@@ -70,7 +70,7 @@ int drm_global_item_ref(struct drm_global_reference *ref) - void *object; - - mutex_lock(&item->mutex); -- if (item->refcount == 0) { -+ if (atomic_read(&item->refcount) == 0) { - item->object = kzalloc(ref->size, GFP_KERNEL); - if (unlikely(item->object == NULL)) { - ret = -ENOMEM; -@@ -83,7 +83,7 @@ int drm_global_item_ref(struct drm_global_reference *ref) - goto out_err; - - } -- ++item->refcount; -+ atomic_inc(&item->refcount); - ref->object = item->object; - object = item->object; - mutex_unlock(&item->mutex); -@@ -100,9 +100,9 @@ void drm_global_item_unref(struct drm_global_reference *ref) - struct drm_global_item *item = &glob[ref->global_type]; - - mutex_lock(&item->mutex); -- BUG_ON(item->refcount == 0); -+ BUG_ON(atomic_read(&item->refcount) == 0); - BUG_ON(ref->object != item->object); -- if (--item->refcount == 0) { -+ if (atomic_dec_and_test(&item->refcount)) { - ref->release(ref); - item->object = NULL; - } -diff --git a/drivers/gpu/drm/drm_info.c b/drivers/gpu/drm/drm_info.c -index ab1162d..42587b2 100644 ---- a/drivers/gpu/drm/drm_info.c -+++ b/drivers/gpu/drm/drm_info.c -@@ -75,10 +75,14 @@ int drm_vm_info(struct seq_file *m, void *data) - struct drm_local_map *map; - struct drm_map_list *r_list; - -- /* Hardcoded from _DRM_FRAME_BUFFER, -- _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and -- _DRM_SCATTER_GATHER and _DRM_CONSISTENT */ -- const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" }; -+ static const char * const types[] = { -+ [_DRM_FRAME_BUFFER] = "FB", -+ [_DRM_REGISTERS] = "REG", -+ [_DRM_SHM] = "SHM", -+ [_DRM_AGP] = "AGP", -+ [_DRM_SCATTER_GATHER] = "SG", -+ [_DRM_CONSISTENT] = "PCI", -+ [_DRM_GEM] = "GEM" }; - const char *type; - int i; - -@@ -89,7 +93,7 @@ int drm_vm_info(struct seq_file *m, void *data) - map = r_list->map; - if (!map) - continue; -- if (map->type < 0 || map->type > 5) -+ if (map->type >= ARRAY_SIZE(types)) - type = "??"; - else - type = types[map->type]; -@@ -290,7 +294,11 @@ int drm_vma_info(struct seq_file *m, void *data) - vma->vm_flags & VM_MAYSHARE ? 's' : 'p', - vma->vm_flags & VM_LOCKED ? 'l' : '-', - vma->vm_flags & VM_IO ? 'i' : '-', -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ 0); -+#else - vma->vm_pgoff); -+#endif - - #if defined(__i386__) - pgprot = pgprot_val(vma->vm_page_prot); -diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c -index 637fcc3..e890b33 100644 ---- a/drivers/gpu/drm/drm_ioc32.c -+++ b/drivers/gpu/drm/drm_ioc32.c -@@ -457,7 +457,7 @@ static int compat_drm_infobufs(struct file *file, unsigned int cmd, - request = compat_alloc_user_space(nbytes); - if (!access_ok(VERIFY_WRITE, request, nbytes)) - return -EFAULT; -- list = (struct drm_buf_desc *) (request + 1); -+ list = (struct drm_buf_desc __user *) (request + 1); - - if (__put_user(count, &request->count) - || __put_user(list, &request->list)) -@@ -518,7 +518,7 @@ static int compat_drm_mapbufs(struct file *file, unsigned int cmd, - request = compat_alloc_user_space(nbytes); - if (!access_ok(VERIFY_WRITE, request, nbytes)) - return -EFAULT; -- list = (struct drm_buf_pub *) (request + 1); -+ list = (struct drm_buf_pub __user *) (request + 1); - - if (__put_user(count, &request->count) - || __put_user(list, &request->list)) -diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c -index cf85155..f2665cb 100644 ---- a/drivers/gpu/drm/drm_ioctl.c -+++ b/drivers/gpu/drm/drm_ioctl.c -@@ -252,7 +252,7 @@ int drm_getstats(struct drm_device *dev, void *data, - stats->data[i].value = - (file_priv->master->lock.hw_lock ? file_priv->master->lock.hw_lock->lock : 0); - else -- stats->data[i].value = atomic_read(&dev->counts[i]); -+ stats->data[i].value = atomic_read_unchecked(&dev->counts[i]); - stats->data[i].type = dev->types[i]; - } - -diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c -index c79c713..2048588 100644 ---- a/drivers/gpu/drm/drm_lock.c -+++ b/drivers/gpu/drm/drm_lock.c -@@ -90,7 +90,7 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv) - if (drm_lock_take(&master->lock, lock->context)) { - master->lock.file_priv = file_priv; - master->lock.lock_time = jiffies; -- atomic_inc(&dev->counts[_DRM_STAT_LOCKS]); -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_LOCKS]); - break; /* Got lock */ - } - -@@ -161,7 +161,7 @@ int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv) - return -EINVAL; - } - -- atomic_inc(&dev->counts[_DRM_STAT_UNLOCKS]); -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_UNLOCKS]); - - if (drm_lock_free(&master->lock, lock->context)) { - /* FIXME: Should really bail out here. */ -diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c -index aa454f8..6d38580 100644 ---- a/drivers/gpu/drm/drm_stub.c -+++ b/drivers/gpu/drm/drm_stub.c -@@ -512,7 +512,7 @@ void drm_unplug_dev(struct drm_device *dev) - - drm_device_set_unplugged(dev); - -- if (dev->open_count == 0) { -+ if (local_read(&dev->open_count) == 0) { - drm_put_dev(dev); - } - mutex_unlock(&drm_global_mutex); -diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c -index f920fb5..001c52d 100644 ---- a/drivers/gpu/drm/i810/i810_dma.c -+++ b/drivers/gpu/drm/i810/i810_dma.c -@@ -945,8 +945,8 @@ static int i810_dma_vertex(struct drm_device *dev, void *data, - dma->buflist[vertex->idx], - vertex->discard, vertex->used); - -- atomic_add(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]); -- atomic_inc(&dev->counts[_DRM_STAT_DMA]); -+ atomic_add_unchecked(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]); -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_DMA]); - sarea_priv->last_enqueue = dev_priv->counter - 1; - sarea_priv->last_dispatch = (int)hw_status[5]; - -@@ -1106,8 +1106,8 @@ static int i810_dma_mc(struct drm_device *dev, void *data, - i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used, - mc->last_render); - -- atomic_add(mc->used, &dev->counts[_DRM_STAT_SECONDARY]); -- atomic_inc(&dev->counts[_DRM_STAT_DMA]); -+ atomic_add_unchecked(mc->used, &dev->counts[_DRM_STAT_SECONDARY]); -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_DMA]); - sarea_priv->last_enqueue = dev_priv->counter - 1; - sarea_priv->last_dispatch = (int)hw_status[5]; - -diff --git a/drivers/gpu/drm/i810/i810_drv.h b/drivers/gpu/drm/i810/i810_drv.h -index c9339f4..f5e1b9d 100644 ---- a/drivers/gpu/drm/i810/i810_drv.h -+++ b/drivers/gpu/drm/i810/i810_drv.h -@@ -108,8 +108,8 @@ typedef struct drm_i810_private { - int page_flipping; - - wait_queue_head_t irq_queue; -- atomic_t irq_received; -- atomic_t irq_emitted; -+ atomic_unchecked_t irq_received; -+ atomic_unchecked_t irq_emitted; - - int front_offset; - } drm_i810_private_t; -diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c -index e6162a1..b2ff486 100644 ---- a/drivers/gpu/drm/i915/i915_debugfs.c -+++ b/drivers/gpu/drm/i915/i915_debugfs.c -@@ -500,7 +500,7 @@ static int i915_interrupt_info(struct seq_file *m, void *data) - I915_READ(GTIMR)); - } - seq_printf(m, "Interrupts received: %d\n", -- atomic_read(&dev_priv->irq_received)); -+ atomic_read_unchecked(&dev_priv->irq_received)); - for (i = 0; i < I915_NUM_RINGS; i++) { - if (IS_GEN6(dev) || IS_GEN7(dev)) { - seq_printf(m, "Graphics Interrupt mask (%s): %08x\n", -@@ -1313,7 +1313,7 @@ static int i915_opregion(struct seq_file *m, void *unused) - return ret; - - if (opregion->header) -- seq_write(m, opregion->header, OPREGION_SIZE); -+ seq_write(m, (const void __force_kernel *)opregion->header, OPREGION_SIZE); - - mutex_unlock(&dev->struct_mutex); - -diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c -index ba60f3c..e2dff7f 100644 ---- a/drivers/gpu/drm/i915/i915_dma.c -+++ b/drivers/gpu/drm/i915/i915_dma.c -@@ -1178,7 +1178,7 @@ static bool i915_switcheroo_can_switch(struct pci_dev *pdev) - bool can_switch; - - spin_lock(&dev->count_lock); -- can_switch = (dev->open_count == 0); -+ can_switch = (local_read(&dev->open_count) == 0); - spin_unlock(&dev->count_lock); - return can_switch; - } -diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h -index 5fabc6c..0b08aa1 100644 ---- a/drivers/gpu/drm/i915/i915_drv.h -+++ b/drivers/gpu/drm/i915/i915_drv.h -@@ -240,7 +240,7 @@ struct drm_i915_display_funcs { - /* render clock increase/decrease */ - /* display clock increase/decrease */ - /* pll clock increase/decrease */ --}; -+} __no_const; - - struct intel_device_info { - u8 gen; -@@ -350,7 +350,7 @@ typedef struct drm_i915_private { - int current_page; - int page_flipping; - -- atomic_t irq_received; -+ atomic_unchecked_t irq_received; - - /* protects the irq masks */ - spinlock_t irq_lock; -@@ -937,7 +937,7 @@ struct drm_i915_gem_object { - * will be page flipped away on the next vblank. When it - * reaches 0, dev_priv->pending_flip_queue will be woken up. - */ -- atomic_t pending_flip; -+ atomic_unchecked_t pending_flip; - }; - - #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base) -@@ -1359,7 +1359,7 @@ extern int intel_setup_gmbus(struct drm_device *dev); - extern void intel_teardown_gmbus(struct drm_device *dev); - extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed); - extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit); --extern inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter) -+static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter) - { - return container_of(adapter, struct intel_gmbus, adapter)->force_bit; - } -diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c -index de43194..a14c4cc 100644 ---- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c -+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c -@@ -189,7 +189,7 @@ i915_gem_object_set_to_gpu_domain(struct drm_i915_gem_object *obj, - i915_gem_clflush_object(obj); - - if (obj->base.pending_write_domain) -- cd->flips |= atomic_read(&obj->pending_flip); -+ cd->flips |= atomic_read_unchecked(&obj->pending_flip); - - /* The actual obj->write_domain will be updated with - * pending_write_domain after we emit the accumulated flush for all -@@ -933,9 +933,9 @@ i915_gem_check_execbuffer(struct drm_i915_gem_execbuffer2 *exec) - - static int - validate_exec_list(struct drm_i915_gem_exec_object2 *exec, -- int count) -+ unsigned int count) - { -- int i; -+ unsigned int i; - - for (i = 0; i < count; i++) { - char __user *ptr = (char __user *)(uintptr_t)exec[i].relocs_ptr; -diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c -index f57e5cf..c82f79d 100644 ---- a/drivers/gpu/drm/i915/i915_irq.c -+++ b/drivers/gpu/drm/i915/i915_irq.c -@@ -472,7 +472,7 @@ static irqreturn_t ivybridge_irq_handler(DRM_IRQ_ARGS) - u32 de_iir, gt_iir, de_ier, pch_iir, pm_iir; - struct drm_i915_master_private *master_priv; - -- atomic_inc(&dev_priv->irq_received); -+ atomic_inc_unchecked(&dev_priv->irq_received); - - /* disable master interrupt before clearing iir */ - de_ier = I915_READ(DEIER); -@@ -563,7 +563,7 @@ static irqreturn_t ironlake_irq_handler(DRM_IRQ_ARGS) - struct drm_i915_master_private *master_priv; - u32 bsd_usr_interrupt = GT_BSD_USER_INTERRUPT; - -- atomic_inc(&dev_priv->irq_received); -+ atomic_inc_unchecked(&dev_priv->irq_received); - - if (IS_GEN6(dev)) - bsd_usr_interrupt = GT_GEN6_BSD_USER_INTERRUPT; -@@ -1292,7 +1292,7 @@ static irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS) - int ret = IRQ_NONE, pipe; - bool blc_event = false; - -- atomic_inc(&dev_priv->irq_received); -+ atomic_inc_unchecked(&dev_priv->irq_received); - - iir = I915_READ(IIR); - -@@ -1803,7 +1803,7 @@ static void ironlake_irq_preinstall(struct drm_device *dev) - { - drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - -- atomic_set(&dev_priv->irq_received, 0); -+ atomic_set_unchecked(&dev_priv->irq_received, 0); - - INIT_WORK(&dev_priv->hotplug_work, i915_hotplug_work_func); - INIT_WORK(&dev_priv->error_work, i915_error_work_func); -@@ -1980,7 +1980,7 @@ static void i915_driver_irq_preinstall(struct drm_device * dev) - drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - int pipe; - -- atomic_set(&dev_priv->irq_received, 0); -+ atomic_set_unchecked(&dev_priv->irq_received, 0); - - INIT_WORK(&dev_priv->hotplug_work, i915_hotplug_work_func); - INIT_WORK(&dev_priv->error_work, i915_error_work_func); -diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c -index d4d162f..e80037c 100644 ---- a/drivers/gpu/drm/i915/intel_display.c -+++ b/drivers/gpu/drm/i915/intel_display.c -@@ -2254,7 +2254,7 @@ intel_finish_fb(struct drm_framebuffer *old_fb) - - wait_event(dev_priv->pending_flip_queue, - atomic_read(&dev_priv->mm.wedged) || -- atomic_read(&obj->pending_flip) == 0); -+ atomic_read_unchecked(&obj->pending_flip) == 0); - - /* Big Hammer, we also need to ensure that any pending - * MI_WAIT_FOR_EVENT inside a user batch buffer on the -@@ -2919,7 +2919,7 @@ static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) - obj = to_intel_framebuffer(crtc->fb)->obj; - dev_priv = crtc->dev->dev_private; - wait_event(dev_priv->pending_flip_queue, -- atomic_read(&obj->pending_flip) == 0); -+ atomic_read_unchecked(&obj->pending_flip) == 0); - } - - static bool intel_crtc_driving_pch(struct drm_crtc *crtc) -@@ -7286,7 +7286,7 @@ static void do_intel_finish_page_flip(struct drm_device *dev, - - atomic_clear_mask(1 << intel_crtc->plane, - &obj->pending_flip.counter); -- if (atomic_read(&obj->pending_flip) == 0) -+ if (atomic_read_unchecked(&obj->pending_flip) == 0) - wake_up(&dev_priv->pending_flip_queue); - - schedule_work(&work->work); -@@ -7582,7 +7582,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, - /* Block clients from rendering to the new back buffer until - * the flip occurs and the object is no longer visible. - */ -- atomic_add(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); -+ atomic_add_unchecked(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); - - ret = dev_priv->display.queue_flip(dev, crtc, fb, obj); - if (ret) -@@ -7596,7 +7596,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, - return 0; - - cleanup_pending: -- atomic_sub(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); -+ atomic_sub_unchecked(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); - drm_gem_object_unreference(&work->old_fb_obj->base); - drm_gem_object_unreference(&obj->base); - mutex_unlock(&dev->struct_mutex); -diff --git a/drivers/gpu/drm/mga/mga_drv.h b/drivers/gpu/drm/mga/mga_drv.h -index 54558a0..2d97005 100644 ---- a/drivers/gpu/drm/mga/mga_drv.h -+++ b/drivers/gpu/drm/mga/mga_drv.h -@@ -120,9 +120,9 @@ typedef struct drm_mga_private { - u32 clear_cmd; - u32 maccess; - -- atomic_t vbl_received; /**< Number of vblanks received. */ -+ atomic_unchecked_t vbl_received; /**< Number of vblanks received. */ - wait_queue_head_t fence_queue; -- atomic_t last_fence_retired; -+ atomic_unchecked_t last_fence_retired; - u32 next_fence_to_post; - - unsigned int fb_cpp; -diff --git a/drivers/gpu/drm/mga/mga_irq.c b/drivers/gpu/drm/mga/mga_irq.c -index 2581202..f230a8d9 100644 ---- a/drivers/gpu/drm/mga/mga_irq.c -+++ b/drivers/gpu/drm/mga/mga_irq.c -@@ -44,7 +44,7 @@ u32 mga_get_vblank_counter(struct drm_device *dev, int crtc) - if (crtc != 0) - return 0; - -- return atomic_read(&dev_priv->vbl_received); -+ return atomic_read_unchecked(&dev_priv->vbl_received); - } - - -@@ -60,7 +60,7 @@ irqreturn_t mga_driver_irq_handler(DRM_IRQ_ARGS) - /* VBLANK interrupt */ - if (status & MGA_VLINEPEN) { - MGA_WRITE(MGA_ICLEAR, MGA_VLINEICLR); -- atomic_inc(&dev_priv->vbl_received); -+ atomic_inc_unchecked(&dev_priv->vbl_received); - drm_handle_vblank(dev, 0); - handled = 1; - } -@@ -79,7 +79,7 @@ irqreturn_t mga_driver_irq_handler(DRM_IRQ_ARGS) - if ((prim_start & ~0x03) != (prim_end & ~0x03)) - MGA_WRITE(MGA_PRIMEND, prim_end); - -- atomic_inc(&dev_priv->last_fence_retired); -+ atomic_inc_unchecked(&dev_priv->last_fence_retired); - DRM_WAKEUP(&dev_priv->fence_queue); - handled = 1; - } -@@ -130,7 +130,7 @@ int mga_driver_fence_wait(struct drm_device *dev, unsigned int *sequence) - * using fences. - */ - DRM_WAIT_ON(ret, dev_priv->fence_queue, 3 * DRM_HZ, -- (((cur_fence = atomic_read(&dev_priv->last_fence_retired)) -+ (((cur_fence = atomic_read_unchecked(&dev_priv->last_fence_retired)) - - *sequence) <= (1 << 23))); - - *sequence = cur_fence; -diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c -index 0be4a81..7464804 100644 ---- a/drivers/gpu/drm/nouveau/nouveau_bios.c -+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c -@@ -5329,7 +5329,7 @@ parse_bit_U_tbl_entry(struct drm_device *dev, struct nvbios *bios, - struct bit_table { - const char id; - int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *); --}; -+} __no_const; - - #define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry }) - -diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h -index 3aef353..0ad1322 100644 ---- a/drivers/gpu/drm/nouveau/nouveau_drv.h -+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h -@@ -240,7 +240,7 @@ struct nouveau_channel { - struct list_head pending; - uint32_t sequence; - uint32_t sequence_ack; -- atomic_t last_sequence_irq; -+ atomic_unchecked_t last_sequence_irq; - struct nouveau_vma vma; - } fence; - -@@ -321,7 +321,7 @@ struct nouveau_exec_engine { - u32 handle, u16 class); - void (*set_tile_region)(struct drm_device *dev, int i); - void (*tlb_flush)(struct drm_device *, int engine); --}; -+} __no_const; - - struct nouveau_instmem_engine { - void *priv; -@@ -343,13 +343,13 @@ struct nouveau_instmem_engine { - struct nouveau_mc_engine { - int (*init)(struct drm_device *dev); - void (*takedown)(struct drm_device *dev); --}; -+} __no_const; - - struct nouveau_timer_engine { - int (*init)(struct drm_device *dev); - void (*takedown)(struct drm_device *dev); - uint64_t (*read)(struct drm_device *dev); --}; -+} __no_const; - - struct nouveau_fb_engine { - int num_tiles; -@@ -590,7 +590,7 @@ struct nouveau_vram_engine { - void (*put)(struct drm_device *, struct nouveau_mem **); - - bool (*flags_valid)(struct drm_device *, u32 tile_flags); --}; -+} __no_const; - - struct nouveau_engine { - struct nouveau_instmem_engine instmem; -@@ -739,7 +739,7 @@ struct drm_nouveau_private { - struct drm_global_reference mem_global_ref; - struct ttm_bo_global_ref bo_global_ref; - struct ttm_bo_device bdev; -- atomic_t validate_sequence; -+ atomic_unchecked_t validate_sequence; - } ttm; - - struct { -diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c -index c1dc20f..4df673c 100644 ---- a/drivers/gpu/drm/nouveau/nouveau_fence.c -+++ b/drivers/gpu/drm/nouveau/nouveau_fence.c -@@ -85,7 +85,7 @@ nouveau_fence_update(struct nouveau_channel *chan) - if (USE_REFCNT(dev)) - sequence = nvchan_rd32(chan, 0x48); - else -- sequence = atomic_read(&chan->fence.last_sequence_irq); -+ sequence = atomic_read_unchecked(&chan->fence.last_sequence_irq); - - if (chan->fence.sequence_ack == sequence) - goto out; -@@ -538,7 +538,7 @@ nouveau_fence_channel_init(struct nouveau_channel *chan) - return ret; - } - -- atomic_set(&chan->fence.last_sequence_irq, 0); -+ atomic_set_unchecked(&chan->fence.last_sequence_irq, 0); - return 0; - } - -diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c -index ed52a6f..484acdc 100644 ---- a/drivers/gpu/drm/nouveau/nouveau_gem.c -+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c -@@ -314,7 +314,7 @@ validate_init(struct nouveau_channel *chan, struct drm_file *file_priv, - int trycnt = 0; - int ret, i; - -- sequence = atomic_add_return(1, &dev_priv->ttm.validate_sequence); -+ sequence = atomic_add_return_unchecked(1, &dev_priv->ttm.validate_sequence); - retry: - if (++trycnt > 100000) { - NV_ERROR(dev, "%s failed and gave up.\n", __func__); -diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c -index c2a8511..4b996f9 100644 ---- a/drivers/gpu/drm/nouveau/nouveau_state.c -+++ b/drivers/gpu/drm/nouveau/nouveau_state.c -@@ -588,7 +588,7 @@ static bool nouveau_switcheroo_can_switch(struct pci_dev *pdev) - bool can_switch; - - spin_lock(&dev->count_lock); -- can_switch = (dev->open_count == 0); -+ can_switch = (local_read(&dev->open_count) == 0); - spin_unlock(&dev->count_lock); - return can_switch; - } -diff --git a/drivers/gpu/drm/nouveau/nv04_graph.c b/drivers/gpu/drm/nouveau/nv04_graph.c -index dbdea8e..cd6eeeb 100644 ---- a/drivers/gpu/drm/nouveau/nv04_graph.c -+++ b/drivers/gpu/drm/nouveau/nv04_graph.c -@@ -554,7 +554,7 @@ static int - nv04_graph_mthd_set_ref(struct nouveau_channel *chan, - u32 class, u32 mthd, u32 data) - { -- atomic_set(&chan->fence.last_sequence_irq, data); -+ atomic_set_unchecked(&chan->fence.last_sequence_irq, data); - return 0; - } - -diff --git a/drivers/gpu/drm/nouveau/nv50_sor.c b/drivers/gpu/drm/nouveau/nv50_sor.c -index 2746402..c8dc4a4 100644 ---- a/drivers/gpu/drm/nouveau/nv50_sor.c -+++ b/drivers/gpu/drm/nouveau/nv50_sor.c -@@ -304,7 +304,7 @@ nv50_sor_dpms(struct drm_encoder *encoder, int mode) - } - - if (nv_encoder->dcb->type == OUTPUT_DP) { -- struct dp_train_func func = { -+ static struct dp_train_func func = { - .link_set = nv50_sor_dp_link_set, - .train_set = nv50_sor_dp_train_set, - .train_adj = nv50_sor_dp_train_adj -diff --git a/drivers/gpu/drm/nouveau/nvd0_display.c b/drivers/gpu/drm/nouveau/nvd0_display.c -index 0247250..d2f6aaf 100644 ---- a/drivers/gpu/drm/nouveau/nvd0_display.c -+++ b/drivers/gpu/drm/nouveau/nvd0_display.c -@@ -1366,7 +1366,7 @@ nvd0_sor_dpms(struct drm_encoder *encoder, int mode) - nv_wait(dev, 0x61c030 + (or * 0x0800), 0x10000000, 0x00000000); - - if (nv_encoder->dcb->type == OUTPUT_DP) { -- struct dp_train_func func = { -+ static struct dp_train_func func = { - .link_set = nvd0_sor_dp_link_set, - .train_set = nvd0_sor_dp_train_set, - .train_adj = nvd0_sor_dp_train_adj -diff --git a/drivers/gpu/drm/r128/r128_cce.c b/drivers/gpu/drm/r128/r128_cce.c -index bcac90b..53bfc76 100644 ---- a/drivers/gpu/drm/r128/r128_cce.c -+++ b/drivers/gpu/drm/r128/r128_cce.c -@@ -378,7 +378,7 @@ static int r128_do_init_cce(struct drm_device *dev, drm_r128_init_t *init) - - /* GH: Simple idle check. - */ -- atomic_set(&dev_priv->idle_count, 0); -+ atomic_set_unchecked(&dev_priv->idle_count, 0); - - /* We don't support anything other than bus-mastering ring mode, - * but the ring can be in either AGP or PCI space for the ring -diff --git a/drivers/gpu/drm/r128/r128_drv.h b/drivers/gpu/drm/r128/r128_drv.h -index 930c71b..499aded 100644 ---- a/drivers/gpu/drm/r128/r128_drv.h -+++ b/drivers/gpu/drm/r128/r128_drv.h -@@ -90,14 +90,14 @@ typedef struct drm_r128_private { - int is_pci; - unsigned long cce_buffers_offset; - -- atomic_t idle_count; -+ atomic_unchecked_t idle_count; - - int page_flipping; - int current_page; - u32 crtc_offset; - u32 crtc_offset_cntl; - -- atomic_t vbl_received; -+ atomic_unchecked_t vbl_received; - - u32 color_fmt; - unsigned int front_offset; -diff --git a/drivers/gpu/drm/r128/r128_irq.c b/drivers/gpu/drm/r128/r128_irq.c -index 429d5a0..7e899ed 100644 ---- a/drivers/gpu/drm/r128/r128_irq.c -+++ b/drivers/gpu/drm/r128/r128_irq.c -@@ -42,7 +42,7 @@ u32 r128_get_vblank_counter(struct drm_device *dev, int crtc) - if (crtc != 0) - return 0; - -- return atomic_read(&dev_priv->vbl_received); -+ return atomic_read_unchecked(&dev_priv->vbl_received); - } - - irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS) -@@ -56,7 +56,7 @@ irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS) - /* VBLANK interrupt */ - if (status & R128_CRTC_VBLANK_INT) { - R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK); -- atomic_inc(&dev_priv->vbl_received); -+ atomic_inc_unchecked(&dev_priv->vbl_received); - drm_handle_vblank(dev, 0); - return IRQ_HANDLED; - } -diff --git a/drivers/gpu/drm/r128/r128_state.c b/drivers/gpu/drm/r128/r128_state.c -index a9e33ce..09edd4b 100644 ---- a/drivers/gpu/drm/r128/r128_state.c -+++ b/drivers/gpu/drm/r128/r128_state.c -@@ -321,10 +321,10 @@ static void r128_clear_box(drm_r128_private_t *dev_priv, - - static void r128_cce_performance_boxes(drm_r128_private_t *dev_priv) - { -- if (atomic_read(&dev_priv->idle_count) == 0) -+ if (atomic_read_unchecked(&dev_priv->idle_count) == 0) - r128_clear_box(dev_priv, 64, 4, 8, 8, 0, 255, 0); - else -- atomic_set(&dev_priv->idle_count, 0); -+ atomic_set_unchecked(&dev_priv->idle_count, 0); - } - - #endif -diff --git a/drivers/gpu/drm/radeon/mkregtable.c b/drivers/gpu/drm/radeon/mkregtable.c -index 5a82b6b..9e69c73 100644 ---- a/drivers/gpu/drm/radeon/mkregtable.c -+++ b/drivers/gpu/drm/radeon/mkregtable.c -@@ -637,14 +637,14 @@ static int parser_auth(struct table *t, const char *filename) - regex_t mask_rex; - regmatch_t match[4]; - char buf[1024]; -- size_t end; -+ long end; - int len; - int done = 0; - int r; - unsigned o; - struct offset *offset; - char last_reg_s[10]; -- int last_reg; -+ unsigned long last_reg; - - if (regcomp - (&mask_rex, "(0x[0-9a-fA-F]*) *([_a-zA-Z0-9]*)", REG_EXTENDED)) { -diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h -index 138b952..d74f9cb 100644 ---- a/drivers/gpu/drm/radeon/radeon.h -+++ b/drivers/gpu/drm/radeon/radeon.h -@@ -253,7 +253,7 @@ struct radeon_fence_driver { - uint32_t scratch_reg; - uint64_t gpu_addr; - volatile uint32_t *cpu_addr; -- atomic_t seq; -+ atomic_unchecked_t seq; - uint32_t last_seq; - unsigned long last_jiffies; - unsigned long last_timeout; -@@ -753,7 +753,7 @@ struct r600_blit_cp_primitives { - int x2, int y2); - void (*draw_auto)(struct radeon_device *rdev); - void (*set_default_state)(struct radeon_device *rdev); --}; -+} __no_const; - - struct r600_blit { - struct mutex mutex; -@@ -1246,7 +1246,7 @@ struct radeon_asic { - u32 (*page_flip)(struct radeon_device *rdev, int crtc, u64 crtc_base); - void (*post_page_flip)(struct radeon_device *rdev, int crtc); - } pflip; --}; -+} __no_const; - - /* - * Asic structures -diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c -index 5992502..c19c633 100644 ---- a/drivers/gpu/drm/radeon/radeon_device.c -+++ b/drivers/gpu/drm/radeon/radeon_device.c -@@ -691,7 +691,7 @@ static bool radeon_switcheroo_can_switch(struct pci_dev *pdev) - bool can_switch; - - spin_lock(&dev->count_lock); -- can_switch = (dev->open_count == 0); -+ can_switch = (local_read(&dev->open_count) == 0); - spin_unlock(&dev->count_lock); - return can_switch; - } -diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h -index a1b59ca..86f2d44 100644 ---- a/drivers/gpu/drm/radeon/radeon_drv.h -+++ b/drivers/gpu/drm/radeon/radeon_drv.h -@@ -255,7 +255,7 @@ typedef struct drm_radeon_private { - - /* SW interrupt */ - wait_queue_head_t swi_queue; -- atomic_t swi_emitted; -+ atomic_unchecked_t swi_emitted; - int vblank_crtc; - uint32_t irq_enable_reg; - uint32_t r500_disp_irq_reg; -diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c -index 4bd36a3..e66fe9c 100644 ---- a/drivers/gpu/drm/radeon/radeon_fence.c -+++ b/drivers/gpu/drm/radeon/radeon_fence.c -@@ -70,7 +70,7 @@ int radeon_fence_emit(struct radeon_device *rdev, struct radeon_fence *fence) - write_unlock_irqrestore(&rdev->fence_lock, irq_flags); - return 0; - } -- fence->seq = atomic_add_return(1, &rdev->fence_drv[fence->ring].seq); -+ fence->seq = atomic_add_return_unchecked(1, &rdev->fence_drv[fence->ring].seq); - if (!rdev->ring[fence->ring].ready) - /* FIXME: cp is not running assume everythings is done right - * away -@@ -405,7 +405,7 @@ int radeon_fence_driver_start_ring(struct radeon_device *rdev, int ring) - } - rdev->fence_drv[ring].cpu_addr = &rdev->wb.wb[index/4]; - rdev->fence_drv[ring].gpu_addr = rdev->wb.gpu_addr + index; -- radeon_fence_write(rdev, atomic_read(&rdev->fence_drv[ring].seq), ring); -+ radeon_fence_write(rdev, atomic_read_unchecked(&rdev->fence_drv[ring].seq), ring); - rdev->fence_drv[ring].initialized = true; - DRM_INFO("fence driver on ring %d use gpu addr 0x%08Lx and cpu addr 0x%p\n", - ring, rdev->fence_drv[ring].gpu_addr, rdev->fence_drv[ring].cpu_addr); -@@ -418,7 +418,7 @@ static void radeon_fence_driver_init_ring(struct radeon_device *rdev, int ring) - rdev->fence_drv[ring].scratch_reg = -1; - rdev->fence_drv[ring].cpu_addr = NULL; - rdev->fence_drv[ring].gpu_addr = 0; -- atomic_set(&rdev->fence_drv[ring].seq, 0); -+ atomic_set_unchecked(&rdev->fence_drv[ring].seq, 0); - INIT_LIST_HEAD(&rdev->fence_drv[ring].created); - INIT_LIST_HEAD(&rdev->fence_drv[ring].emitted); - INIT_LIST_HEAD(&rdev->fence_drv[ring].signaled); -diff --git a/drivers/gpu/drm/radeon/radeon_ioc32.c b/drivers/gpu/drm/radeon/radeon_ioc32.c -index 48b7cea..342236f 100644 ---- a/drivers/gpu/drm/radeon/radeon_ioc32.c -+++ b/drivers/gpu/drm/radeon/radeon_ioc32.c -@@ -359,7 +359,7 @@ static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd, - request = compat_alloc_user_space(sizeof(*request)); - if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) - || __put_user(req32.param, &request->param) -- || __put_user((void __user *)(unsigned long)req32.value, -+ || __put_user((unsigned long)req32.value, - &request->value)) - return -EFAULT; - -diff --git a/drivers/gpu/drm/radeon/radeon_irq.c b/drivers/gpu/drm/radeon/radeon_irq.c -index 00da384..32f972d 100644 ---- a/drivers/gpu/drm/radeon/radeon_irq.c -+++ b/drivers/gpu/drm/radeon/radeon_irq.c -@@ -225,8 +225,8 @@ static int radeon_emit_irq(struct drm_device * dev) - unsigned int ret; - RING_LOCALS; - -- atomic_inc(&dev_priv->swi_emitted); -- ret = atomic_read(&dev_priv->swi_emitted); -+ atomic_inc_unchecked(&dev_priv->swi_emitted); -+ ret = atomic_read_unchecked(&dev_priv->swi_emitted); - - BEGIN_RING(4); - OUT_RING_REG(RADEON_LAST_SWI_REG, ret); -@@ -352,7 +352,7 @@ int radeon_driver_irq_postinstall(struct drm_device *dev) - drm_radeon_private_t *dev_priv = - (drm_radeon_private_t *) dev->dev_private; - -- atomic_set(&dev_priv->swi_emitted, 0); -+ atomic_set_unchecked(&dev_priv->swi_emitted, 0); - DRM_INIT_WAITQUEUE(&dev_priv->swi_queue); - - dev->max_vblank_count = 0x001fffff; -diff --git a/drivers/gpu/drm/radeon/radeon_state.c b/drivers/gpu/drm/radeon/radeon_state.c -index e8422ae..d22d4a8 100644 ---- a/drivers/gpu/drm/radeon/radeon_state.c -+++ b/drivers/gpu/drm/radeon/radeon_state.c -@@ -2168,7 +2168,7 @@ static int radeon_cp_clear(struct drm_device *dev, void *data, struct drm_file * - if (sarea_priv->nbox > RADEON_NR_SAREA_CLIPRECTS) - sarea_priv->nbox = RADEON_NR_SAREA_CLIPRECTS; - -- if (DRM_COPY_FROM_USER(&depth_boxes, clear->depth_boxes, -+ if (sarea_priv->nbox > RADEON_NR_SAREA_CLIPRECTS || DRM_COPY_FROM_USER(&depth_boxes, clear->depth_boxes, - sarea_priv->nbox * sizeof(depth_boxes[0]))) - return -EFAULT; - -@@ -3031,7 +3031,7 @@ static int radeon_cp_getparam(struct drm_device *dev, void *data, struct drm_fil - { - drm_radeon_private_t *dev_priv = dev->dev_private; - drm_radeon_getparam_t *param = data; -- int value; -+ int value = 0; - - DRM_DEBUG("pid=%d\n", DRM_CURRENTPID); - -diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c -index f493c64..524ab6b 100644 ---- a/drivers/gpu/drm/radeon/radeon_ttm.c -+++ b/drivers/gpu/drm/radeon/radeon_ttm.c -@@ -843,8 +843,10 @@ int radeon_mmap(struct file *filp, struct vm_area_struct *vma) - } - if (unlikely(ttm_vm_ops == NULL)) { - ttm_vm_ops = vma->vm_ops; -- radeon_ttm_vm_ops = *ttm_vm_ops; -- radeon_ttm_vm_ops.fault = &radeon_ttm_fault; -+ pax_open_kernel(); -+ memcpy((void *)&radeon_ttm_vm_ops, ttm_vm_ops, sizeof(radeon_ttm_vm_ops)); -+ *(void **)&radeon_ttm_vm_ops.fault = &radeon_ttm_fault; -+ pax_close_kernel(); - } - vma->vm_ops = &radeon_ttm_vm_ops; - return 0; -diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c -index f2c3b9d..d5a376b 100644 ---- a/drivers/gpu/drm/radeon/rs690.c -+++ b/drivers/gpu/drm/radeon/rs690.c -@@ -304,9 +304,11 @@ void rs690_crtc_bandwidth_compute(struct radeon_device *rdev, - if (rdev->pm.max_bandwidth.full > rdev->pm.sideport_bandwidth.full && - rdev->pm.sideport_bandwidth.full) - rdev->pm.max_bandwidth = rdev->pm.sideport_bandwidth; -- read_delay_latency.full = dfixed_const(370 * 800 * 1000); -+ read_delay_latency.full = dfixed_const(800 * 1000); - read_delay_latency.full = dfixed_div(read_delay_latency, - rdev->pm.igp_sideport_mclk); -+ a.full = dfixed_const(370); -+ read_delay_latency.full = dfixed_mul(read_delay_latency, a); - } else { - if (rdev->pm.max_bandwidth.full > rdev->pm.k8_bandwidth.full && - rdev->pm.k8_bandwidth.full) -diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c -index ebc6fac..a8313ed 100644 ---- a/drivers/gpu/drm/ttm/ttm_page_alloc.c -+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c -@@ -394,9 +394,9 @@ static int ttm_pool_get_num_unused_pages(void) - static int ttm_pool_mm_shrink(struct shrinker *shrink, - struct shrink_control *sc) - { -- static atomic_t start_pool = ATOMIC_INIT(0); -+ static atomic_unchecked_t start_pool = ATOMIC_INIT(0); - unsigned i; -- unsigned pool_offset = atomic_add_return(1, &start_pool); -+ unsigned pool_offset = atomic_add_return_unchecked(1, &start_pool); - struct ttm_page_pool *pool; - int shrink_pages = sc->nr_to_scan; - -diff --git a/drivers/gpu/drm/via/via_drv.h b/drivers/gpu/drm/via/via_drv.h -index 88edacc..1e5412b 100644 ---- a/drivers/gpu/drm/via/via_drv.h -+++ b/drivers/gpu/drm/via/via_drv.h -@@ -51,7 +51,7 @@ typedef struct drm_via_ring_buffer { - typedef uint32_t maskarray_t[5]; - - typedef struct drm_via_irq { -- atomic_t irq_received; -+ atomic_unchecked_t irq_received; - uint32_t pending_mask; - uint32_t enable_mask; - wait_queue_head_t irq_queue; -@@ -75,7 +75,7 @@ typedef struct drm_via_private { - struct timeval last_vblank; - int last_vblank_valid; - unsigned usec_per_vblank; -- atomic_t vbl_received; -+ atomic_unchecked_t vbl_received; - drm_via_state_t hc_state; - char pci_buf[VIA_PCI_BUF_SIZE]; - const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE]; -diff --git a/drivers/gpu/drm/via/via_irq.c b/drivers/gpu/drm/via/via_irq.c -index d391f48..10c8ca3 100644 ---- a/drivers/gpu/drm/via/via_irq.c -+++ b/drivers/gpu/drm/via/via_irq.c -@@ -102,7 +102,7 @@ u32 via_get_vblank_counter(struct drm_device *dev, int crtc) - if (crtc != 0) - return 0; - -- return atomic_read(&dev_priv->vbl_received); -+ return atomic_read_unchecked(&dev_priv->vbl_received); - } - - irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS) -@@ -117,8 +117,8 @@ irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS) - - status = VIA_READ(VIA_REG_INTERRUPT); - if (status & VIA_IRQ_VBLANK_PENDING) { -- atomic_inc(&dev_priv->vbl_received); -- if (!(atomic_read(&dev_priv->vbl_received) & 0x0F)) { -+ atomic_inc_unchecked(&dev_priv->vbl_received); -+ if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0x0F)) { - do_gettimeofday(&cur_vblank); - if (dev_priv->last_vblank_valid) { - dev_priv->usec_per_vblank = -@@ -128,7 +128,7 @@ irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS) - dev_priv->last_vblank = cur_vblank; - dev_priv->last_vblank_valid = 1; - } -- if (!(atomic_read(&dev_priv->vbl_received) & 0xFF)) { -+ if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0xFF)) { - DRM_DEBUG("US per vblank is: %u\n", - dev_priv->usec_per_vblank); - } -@@ -138,7 +138,7 @@ irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS) - - for (i = 0; i < dev_priv->num_irqs; ++i) { - if (status & cur_irq->pending_mask) { -- atomic_inc(&cur_irq->irq_received); -+ atomic_inc_unchecked(&cur_irq->irq_received); - DRM_WAKEUP(&cur_irq->irq_queue); - handled = 1; - if (dev_priv->irq_map[drm_via_irq_dma0_td] == i) -@@ -243,11 +243,11 @@ via_driver_irq_wait(struct drm_device *dev, unsigned int irq, int force_sequence - DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * DRM_HZ, - ((VIA_READ(masks[irq][2]) & masks[irq][3]) == - masks[irq][4])); -- cur_irq_sequence = atomic_read(&cur_irq->irq_received); -+ cur_irq_sequence = atomic_read_unchecked(&cur_irq->irq_received); - } else { - DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * DRM_HZ, - (((cur_irq_sequence = -- atomic_read(&cur_irq->irq_received)) - -+ atomic_read_unchecked(&cur_irq->irq_received)) - - *sequence) <= (1 << 23))); - } - *sequence = cur_irq_sequence; -@@ -285,7 +285,7 @@ void via_driver_irq_preinstall(struct drm_device *dev) - } - - for (i = 0; i < dev_priv->num_irqs; ++i) { -- atomic_set(&cur_irq->irq_received, 0); -+ atomic_set_unchecked(&cur_irq->irq_received, 0); - cur_irq->enable_mask = dev_priv->irq_masks[i][0]; - cur_irq->pending_mask = dev_priv->irq_masks[i][1]; - DRM_INIT_WAITQUEUE(&cur_irq->irq_queue); -@@ -367,7 +367,7 @@ int via_wait_irq(struct drm_device *dev, void *data, struct drm_file *file_priv) - switch (irqwait->request.type & ~VIA_IRQ_FLAGS_MASK) { - case VIA_IRQ_RELATIVE: - irqwait->request.sequence += -- atomic_read(&cur_irq->irq_received); -+ atomic_read_unchecked(&cur_irq->irq_received); - irqwait->request.type &= ~_DRM_VBLANK_RELATIVE; - case VIA_IRQ_ABSOLUTE: - break; -diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h -index d0f2c07..9ebd9c3 100644 ---- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h -+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h -@@ -263,7 +263,7 @@ struct vmw_private { - * Fencing and IRQs. - */ - -- atomic_t marker_seq; -+ atomic_unchecked_t marker_seq; - wait_queue_head_t fence_queue; - wait_queue_head_t fifo_queue; - int fence_queue_waiters; /* Protected by hw_mutex */ -diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c -index a0c2f12..68ae6cb 100644 ---- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c -+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c -@@ -137,7 +137,7 @@ int vmw_fifo_init(struct vmw_private *dev_priv, struct vmw_fifo_state *fifo) - (unsigned int) min, - (unsigned int) fifo->capabilities); - -- atomic_set(&dev_priv->marker_seq, dev_priv->last_read_seqno); -+ atomic_set_unchecked(&dev_priv->marker_seq, dev_priv->last_read_seqno); - iowrite32(dev_priv->last_read_seqno, fifo_mem + SVGA_FIFO_FENCE); - vmw_marker_queue_init(&fifo->marker_queue); - return vmw_fifo_send_fence(dev_priv, &dummy); -@@ -355,7 +355,7 @@ void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes) - if (reserveable) - iowrite32(bytes, fifo_mem + - SVGA_FIFO_RESERVED); -- return fifo_mem + (next_cmd >> 2); -+ return (__le32 __force_kernel *)fifo_mem + (next_cmd >> 2); - } else { - need_bounce = true; - } -@@ -475,7 +475,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno) - - fm = vmw_fifo_reserve(dev_priv, bytes); - if (unlikely(fm == NULL)) { -- *seqno = atomic_read(&dev_priv->marker_seq); -+ *seqno = atomic_read_unchecked(&dev_priv->marker_seq); - ret = -ENOMEM; - (void)vmw_fallback_wait(dev_priv, false, true, *seqno, - false, 3*HZ); -@@ -483,7 +483,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno) - } - - do { -- *seqno = atomic_add_return(1, &dev_priv->marker_seq); -+ *seqno = atomic_add_return_unchecked(1, &dev_priv->marker_seq); - } while (*seqno == 0); - - if (!(fifo_state->capabilities & SVGA_FIFO_CAP_FENCE)) { -diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c -index cabc95f..14b3d77 100644 ---- a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c -+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c -@@ -107,7 +107,7 @@ bool vmw_seqno_passed(struct vmw_private *dev_priv, - * emitted. Then the fence is stale and signaled. - */ - -- ret = ((atomic_read(&dev_priv->marker_seq) - seqno) -+ ret = ((atomic_read_unchecked(&dev_priv->marker_seq) - seqno) - > VMW_FENCE_WRAP); - - return ret; -@@ -138,7 +138,7 @@ int vmw_fallback_wait(struct vmw_private *dev_priv, - - if (fifo_idle) - down_read(&fifo_state->rwsem); -- signal_seq = atomic_read(&dev_priv->marker_seq); -+ signal_seq = atomic_read_unchecked(&dev_priv->marker_seq); - ret = 0; - - for (;;) { -diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c -index 8a8725c..afed796 100644 ---- a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c -+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c -@@ -151,7 +151,7 @@ int vmw_wait_lag(struct vmw_private *dev_priv, - while (!vmw_lag_lt(queue, us)) { - spin_lock(&queue->lock); - if (list_empty(&queue->head)) -- seqno = atomic_read(&dev_priv->marker_seq); -+ seqno = atomic_read_unchecked(&dev_priv->marker_seq); - else { - marker = list_first_entry(&queue->head, - struct vmw_marker, head); -diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c -index 4da66b4..e948655 100644 ---- a/drivers/hid/hid-core.c -+++ b/drivers/hid/hid-core.c -@@ -2063,7 +2063,7 @@ static bool hid_ignore(struct hid_device *hdev) - - int hid_add_device(struct hid_device *hdev) - { -- static atomic_t id = ATOMIC_INIT(0); -+ static atomic_unchecked_t id = ATOMIC_INIT(0); - int ret; - - if (WARN_ON(hdev->status & HID_STAT_ADDED)) -@@ -2078,7 +2078,7 @@ int hid_add_device(struct hid_device *hdev) - /* XXX hack, any other cleaner solution after the driver core - * is converted to allow more than 20 bytes as the device name? */ - dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus, -- hdev->vendor, hdev->product, atomic_inc_return(&id)); -+ hdev->vendor, hdev->product, atomic_inc_return_unchecked(&id)); - - hid_debug_register(hdev, dev_name(&hdev->dev)); - ret = device_add(&hdev->dev); -diff --git a/drivers/hid/hid-wiimote-debug.c b/drivers/hid/hid-wiimote-debug.c -index eec3291..8ed706b 100644 ---- a/drivers/hid/hid-wiimote-debug.c -+++ b/drivers/hid/hid-wiimote-debug.c -@@ -66,7 +66,7 @@ static ssize_t wiidebug_eeprom_read(struct file *f, char __user *u, size_t s, - else if (size == 0) - return -EIO; - -- if (copy_to_user(u, buf, size)) -+ if (size > sizeof(buf) || copy_to_user(u, buf, size)) - return -EFAULT; - - *off += size; -diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c -index b1ec0e2..c295a61 100644 ---- a/drivers/hid/usbhid/hiddev.c -+++ b/drivers/hid/usbhid/hiddev.c -@@ -624,7 +624,7 @@ static long hiddev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) - break; - - case HIDIOCAPPLICATION: -- if (arg < 0 || arg >= hid->maxapplication) -+ if (arg >= hid->maxapplication) - break; - - for (i = 0; i < hid->maxcollection; i++) -diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c -index 4065374..10ed7dc 100644 ---- a/drivers/hv/channel.c -+++ b/drivers/hv/channel.c -@@ -400,8 +400,8 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer, - int ret = 0; - int t; - -- next_gpadl_handle = atomic_read(&vmbus_connection.next_gpadl_handle); -- atomic_inc(&vmbus_connection.next_gpadl_handle); -+ next_gpadl_handle = atomic_read_unchecked(&vmbus_connection.next_gpadl_handle); -+ atomic_inc_unchecked(&vmbus_connection.next_gpadl_handle); - - ret = create_gpadl_header(kbuffer, size, &msginfo, &msgcount); - if (ret) -diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c -index 15956bd..ea34398 100644 ---- a/drivers/hv/hv.c -+++ b/drivers/hv/hv.c -@@ -132,7 +132,7 @@ static u64 do_hypercall(u64 control, void *input, void *output) - u64 output_address = (output) ? virt_to_phys(output) : 0; - u32 output_address_hi = output_address >> 32; - u32 output_address_lo = output_address & 0xFFFFFFFF; -- void *hypercall_page = hv_context.hypercall_page; -+ void *hypercall_page = ktva_ktla(hv_context.hypercall_page); - - __asm__ __volatile__ ("call *%8" : "=d"(hv_status_hi), - "=a"(hv_status_lo) : "d" (control_hi), -diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h -index 699f0d8..f4f19250 100644 ---- a/drivers/hv/hyperv_vmbus.h -+++ b/drivers/hv/hyperv_vmbus.h -@@ -555,7 +555,7 @@ enum vmbus_connect_state { - struct vmbus_connection { - enum vmbus_connect_state conn_state; - -- atomic_t next_gpadl_handle; -+ atomic_unchecked_t next_gpadl_handle; - - /* - * Represents channel interrupts. Each bit position represents a -diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c -index a220e57..428f54d 100644 ---- a/drivers/hv/vmbus_drv.c -+++ b/drivers/hv/vmbus_drv.c -@@ -663,10 +663,10 @@ int vmbus_device_register(struct hv_device *child_device_obj) - { - int ret = 0; - -- static atomic_t device_num = ATOMIC_INIT(0); -+ static atomic_unchecked_t device_num = ATOMIC_INIT(0); - - dev_set_name(&child_device_obj->device, "vmbus_0_%d", -- atomic_inc_return(&device_num)); -+ atomic_inc_return_unchecked(&device_num)); - - child_device_obj->device.bus = &hv_bus; - child_device_obj->device.parent = &hv_acpi_dev->dev; -diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c -index 9140236..ceaef4e 100644 ---- a/drivers/hwmon/acpi_power_meter.c -+++ b/drivers/hwmon/acpi_power_meter.c -@@ -316,8 +316,6 @@ static ssize_t set_trip(struct device *dev, struct device_attribute *devattr, - return res; - - temp /= 1000; -- if (temp < 0) -- return -EINVAL; - - mutex_lock(&resource->lock); - resource->trip[attr->index - 7] = temp; -diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c -index 8b011d0..3de24a1 100644 ---- a/drivers/hwmon/sht15.c -+++ b/drivers/hwmon/sht15.c -@@ -166,7 +166,7 @@ struct sht15_data { - int supply_uV; - bool supply_uV_valid; - struct work_struct update_supply_work; -- atomic_t interrupt_handled; -+ atomic_unchecked_t interrupt_handled; - }; - - /** -@@ -509,13 +509,13 @@ static int sht15_measurement(struct sht15_data *data, - return ret; - - gpio_direction_input(data->pdata->gpio_data); -- atomic_set(&data->interrupt_handled, 0); -+ atomic_set_unchecked(&data->interrupt_handled, 0); - - enable_irq(gpio_to_irq(data->pdata->gpio_data)); - if (gpio_get_value(data->pdata->gpio_data) == 0) { - disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data)); - /* Only relevant if the interrupt hasn't occurred. */ -- if (!atomic_read(&data->interrupt_handled)) -+ if (!atomic_read_unchecked(&data->interrupt_handled)) - schedule_work(&data->read_work); - } - ret = wait_event_timeout(data->wait_queue, -@@ -782,7 +782,7 @@ static irqreturn_t sht15_interrupt_fired(int irq, void *d) - - /* First disable the interrupt */ - disable_irq_nosync(irq); -- atomic_inc(&data->interrupt_handled); -+ atomic_inc_unchecked(&data->interrupt_handled); - /* Then schedule a reading work struct */ - if (data->state != SHT15_READING_NOTHING) - schedule_work(&data->read_work); -@@ -804,11 +804,11 @@ static void sht15_bh_read_data(struct work_struct *work_s) - * If not, then start the interrupt again - care here as could - * have gone low in meantime so verify it hasn't! - */ -- atomic_set(&data->interrupt_handled, 0); -+ atomic_set_unchecked(&data->interrupt_handled, 0); - enable_irq(gpio_to_irq(data->pdata->gpio_data)); - /* If still not occurred or another handler was scheduled */ - if (gpio_get_value(data->pdata->gpio_data) -- || atomic_read(&data->interrupt_handled)) -+ || atomic_read_unchecked(&data->interrupt_handled)) - return; - } - -diff --git a/drivers/i2c/busses/i2c-amd756-s4882.c b/drivers/i2c/busses/i2c-amd756-s4882.c -index 378fcb5..5e91fa8 100644 ---- a/drivers/i2c/busses/i2c-amd756-s4882.c -+++ b/drivers/i2c/busses/i2c-amd756-s4882.c -@@ -43,7 +43,7 @@ - extern struct i2c_adapter amd756_smbus; - - static struct i2c_adapter *s4882_adapter; --static struct i2c_algorithm *s4882_algo; -+static i2c_algorithm_no_const *s4882_algo; - - /* Wrapper access functions for multiplexed SMBus */ - static DEFINE_MUTEX(amd756_lock); -diff --git a/drivers/i2c/busses/i2c-nforce2-s4985.c b/drivers/i2c/busses/i2c-nforce2-s4985.c -index 29015eb..af2d8e9 100644 ---- a/drivers/i2c/busses/i2c-nforce2-s4985.c -+++ b/drivers/i2c/busses/i2c-nforce2-s4985.c -@@ -41,7 +41,7 @@ - extern struct i2c_adapter *nforce2_smbus; - - static struct i2c_adapter *s4985_adapter; --static struct i2c_algorithm *s4985_algo; -+static i2c_algorithm_no_const *s4985_algo; - - /* Wrapper access functions for multiplexed SMBus */ - static DEFINE_MUTEX(nforce2_lock); -diff --git a/drivers/i2c/i2c-mux.c b/drivers/i2c/i2c-mux.c -index d7a4833..7fae376 100644 ---- a/drivers/i2c/i2c-mux.c -+++ b/drivers/i2c/i2c-mux.c -@@ -28,7 +28,7 @@ - /* multiplexer per channel data */ - struct i2c_mux_priv { - struct i2c_adapter adap; -- struct i2c_algorithm algo; -+ i2c_algorithm_no_const algo; - - struct i2c_adapter *parent; - void *mux_dev; /* the mux chip/device */ -diff --git a/drivers/ide/aec62xx.c b/drivers/ide/aec62xx.c -index 57d00ca..0145194 100644 ---- a/drivers/ide/aec62xx.c -+++ b/drivers/ide/aec62xx.c -@@ -181,7 +181,7 @@ static const struct ide_port_ops atp86x_port_ops = { - .cable_detect = atp86x_cable_detect, - }; - --static const struct ide_port_info aec62xx_chipsets[] __devinitdata = { -+static const struct ide_port_info aec62xx_chipsets[] __devinitconst = { - { /* 0: AEC6210 */ - .name = DRV_NAME, - .init_chipset = init_chipset_aec62xx, -diff --git a/drivers/ide/alim15x3.c b/drivers/ide/alim15x3.c -index 2c8016a..911a27c 100644 ---- a/drivers/ide/alim15x3.c -+++ b/drivers/ide/alim15x3.c -@@ -512,7 +512,7 @@ static const struct ide_dma_ops ali_dma_ops = { - .dma_sff_read_status = ide_dma_sff_read_status, - }; - --static const struct ide_port_info ali15x3_chipset __devinitdata = { -+static const struct ide_port_info ali15x3_chipset __devinitconst = { - .name = DRV_NAME, - .init_chipset = init_chipset_ali15x3, - .init_hwif = init_hwif_ali15x3, -diff --git a/drivers/ide/amd74xx.c b/drivers/ide/amd74xx.c -index 3747b25..56fc995 100644 ---- a/drivers/ide/amd74xx.c -+++ b/drivers/ide/amd74xx.c -@@ -223,7 +223,7 @@ static const struct ide_port_ops amd_port_ops = { - .udma_mask = udma, \ - } - --static const struct ide_port_info amd74xx_chipsets[] __devinitdata = { -+static const struct ide_port_info amd74xx_chipsets[] __devinitconst = { - /* 0: AMD7401 */ DECLARE_AMD_DEV(0x00, ATA_UDMA2), - /* 1: AMD7409 */ DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA4), - /* 2: AMD7411/7441 */ DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA5), -diff --git a/drivers/ide/atiixp.c b/drivers/ide/atiixp.c -index 15f0ead..cb43480 100644 ---- a/drivers/ide/atiixp.c -+++ b/drivers/ide/atiixp.c -@@ -139,7 +139,7 @@ static const struct ide_port_ops atiixp_port_ops = { - .cable_detect = atiixp_cable_detect, - }; - --static const struct ide_port_info atiixp_pci_info[] __devinitdata = { -+static const struct ide_port_info atiixp_pci_info[] __devinitconst = { - { /* 0: IXP200/300/400/700 */ - .name = DRV_NAME, - .enablebits = {{0x48,0x01,0x00}, {0x48,0x08,0x00}}, -diff --git a/drivers/ide/cmd64x.c b/drivers/ide/cmd64x.c -index 5f80312..d1fc438 100644 ---- a/drivers/ide/cmd64x.c -+++ b/drivers/ide/cmd64x.c -@@ -327,7 +327,7 @@ static const struct ide_dma_ops cmd646_rev1_dma_ops = { - .dma_sff_read_status = ide_dma_sff_read_status, - }; - --static const struct ide_port_info cmd64x_chipsets[] __devinitdata = { -+static const struct ide_port_info cmd64x_chipsets[] __devinitconst = { - { /* 0: CMD643 */ - .name = DRV_NAME, - .init_chipset = init_chipset_cmd64x, -diff --git a/drivers/ide/cs5520.c b/drivers/ide/cs5520.c -index 2c1e5f7..1444762 100644 ---- a/drivers/ide/cs5520.c -+++ b/drivers/ide/cs5520.c -@@ -94,7 +94,7 @@ static const struct ide_port_ops cs5520_port_ops = { - .set_dma_mode = cs5520_set_dma_mode, - }; - --static const struct ide_port_info cyrix_chipset __devinitdata = { -+static const struct ide_port_info cyrix_chipset __devinitconst = { - .name = DRV_NAME, - .enablebits = { { 0x60, 0x01, 0x01 }, { 0x60, 0x02, 0x02 } }, - .port_ops = &cs5520_port_ops, -diff --git a/drivers/ide/cs5530.c b/drivers/ide/cs5530.c -index 4dc4eb9..49b40ad 100644 ---- a/drivers/ide/cs5530.c -+++ b/drivers/ide/cs5530.c -@@ -245,7 +245,7 @@ static const struct ide_port_ops cs5530_port_ops = { - .udma_filter = cs5530_udma_filter, - }; - --static const struct ide_port_info cs5530_chipset __devinitdata = { -+static const struct ide_port_info cs5530_chipset __devinitconst = { - .name = DRV_NAME, - .init_chipset = init_chipset_cs5530, - .init_hwif = init_hwif_cs5530, -diff --git a/drivers/ide/cs5535.c b/drivers/ide/cs5535.c -index 5059faf..18d4c85 100644 ---- a/drivers/ide/cs5535.c -+++ b/drivers/ide/cs5535.c -@@ -170,7 +170,7 @@ static const struct ide_port_ops cs5535_port_ops = { - .cable_detect = cs5535_cable_detect, - }; - --static const struct ide_port_info cs5535_chipset __devinitdata = { -+static const struct ide_port_info cs5535_chipset __devinitconst = { - .name = DRV_NAME, - .port_ops = &cs5535_port_ops, - .host_flags = IDE_HFLAG_SINGLE | IDE_HFLAG_POST_SET_MODE, -diff --git a/drivers/ide/cy82c693.c b/drivers/ide/cy82c693.c -index 847553f..3ffb49d 100644 ---- a/drivers/ide/cy82c693.c -+++ b/drivers/ide/cy82c693.c -@@ -163,7 +163,7 @@ static const struct ide_port_ops cy82c693_port_ops = { - .set_dma_mode = cy82c693_set_dma_mode, - }; - --static const struct ide_port_info cy82c693_chipset __devinitdata = { -+static const struct ide_port_info cy82c693_chipset __devinitconst = { - .name = DRV_NAME, - .init_iops = init_iops_cy82c693, - .port_ops = &cy82c693_port_ops, -diff --git a/drivers/ide/hpt366.c b/drivers/ide/hpt366.c -index 58c51cd..4aec3b8 100644 ---- a/drivers/ide/hpt366.c -+++ b/drivers/ide/hpt366.c -@@ -443,7 +443,7 @@ static struct hpt_timings hpt37x_timings = { - } - }; - --static const struct hpt_info hpt36x __devinitdata = { -+static const struct hpt_info hpt36x __devinitconst = { - .chip_name = "HPT36x", - .chip_type = HPT36x, - .udma_mask = HPT366_ALLOW_ATA66_3 ? (HPT366_ALLOW_ATA66_4 ? ATA_UDMA4 : ATA_UDMA3) : ATA_UDMA2, -@@ -451,7 +451,7 @@ static const struct hpt_info hpt36x __devinitdata = { - .timings = &hpt36x_timings - }; - --static const struct hpt_info hpt370 __devinitdata = { -+static const struct hpt_info hpt370 __devinitconst = { - .chip_name = "HPT370", - .chip_type = HPT370, - .udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4, -@@ -459,7 +459,7 @@ static const struct hpt_info hpt370 __devinitdata = { - .timings = &hpt37x_timings - }; - --static const struct hpt_info hpt370a __devinitdata = { -+static const struct hpt_info hpt370a __devinitconst = { - .chip_name = "HPT370A", - .chip_type = HPT370A, - .udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4, -@@ -467,7 +467,7 @@ static const struct hpt_info hpt370a __devinitdata = { - .timings = &hpt37x_timings - }; - --static const struct hpt_info hpt374 __devinitdata = { -+static const struct hpt_info hpt374 __devinitconst = { - .chip_name = "HPT374", - .chip_type = HPT374, - .udma_mask = ATA_UDMA5, -@@ -475,7 +475,7 @@ static const struct hpt_info hpt374 __devinitdata = { - .timings = &hpt37x_timings - }; - --static const struct hpt_info hpt372 __devinitdata = { -+static const struct hpt_info hpt372 __devinitconst = { - .chip_name = "HPT372", - .chip_type = HPT372, - .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, -@@ -483,7 +483,7 @@ static const struct hpt_info hpt372 __devinitdata = { - .timings = &hpt37x_timings - }; - --static const struct hpt_info hpt372a __devinitdata = { -+static const struct hpt_info hpt372a __devinitconst = { - .chip_name = "HPT372A", - .chip_type = HPT372A, - .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, -@@ -491,7 +491,7 @@ static const struct hpt_info hpt372a __devinitdata = { - .timings = &hpt37x_timings - }; - --static const struct hpt_info hpt302 __devinitdata = { -+static const struct hpt_info hpt302 __devinitconst = { - .chip_name = "HPT302", - .chip_type = HPT302, - .udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, -@@ -499,7 +499,7 @@ static const struct hpt_info hpt302 __devinitdata = { - .timings = &hpt37x_timings - }; - --static const struct hpt_info hpt371 __devinitdata = { -+static const struct hpt_info hpt371 __devinitconst = { - .chip_name = "HPT371", - .chip_type = HPT371, - .udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, -@@ -507,7 +507,7 @@ static const struct hpt_info hpt371 __devinitdata = { - .timings = &hpt37x_timings - }; - --static const struct hpt_info hpt372n __devinitdata = { -+static const struct hpt_info hpt372n __devinitconst = { - .chip_name = "HPT372N", - .chip_type = HPT372N, - .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, -@@ -515,7 +515,7 @@ static const struct hpt_info hpt372n __devinitdata = { - .timings = &hpt37x_timings - }; - --static const struct hpt_info hpt302n __devinitdata = { -+static const struct hpt_info hpt302n __devinitconst = { - .chip_name = "HPT302N", - .chip_type = HPT302N, - .udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, -@@ -523,7 +523,7 @@ static const struct hpt_info hpt302n __devinitdata = { - .timings = &hpt37x_timings - }; - --static const struct hpt_info hpt371n __devinitdata = { -+static const struct hpt_info hpt371n __devinitconst = { - .chip_name = "HPT371N", - .chip_type = HPT371N, - .udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, -@@ -1361,7 +1361,7 @@ static const struct ide_dma_ops hpt36x_dma_ops = { - .dma_sff_read_status = ide_dma_sff_read_status, - }; - --static const struct ide_port_info hpt366_chipsets[] __devinitdata = { -+static const struct ide_port_info hpt366_chipsets[] __devinitconst = { - { /* 0: HPT36x */ - .name = DRV_NAME, - .init_chipset = init_chipset_hpt366, -diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c -index 8126824..55a2798 100644 ---- a/drivers/ide/ide-cd.c -+++ b/drivers/ide/ide-cd.c -@@ -768,7 +768,7 @@ static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) - alignment = queue_dma_alignment(q) | q->dma_pad_mask; - if ((unsigned long)buf & alignment - || blk_rq_bytes(rq) & q->dma_pad_mask -- || object_is_on_stack(buf)) -+ || object_starts_on_stack(buf)) - drive->dma = 0; - } - } -diff --git a/drivers/ide/ide-pci-generic.c b/drivers/ide/ide-pci-generic.c -index 7f56b73..dab5b67 100644 ---- a/drivers/ide/ide-pci-generic.c -+++ b/drivers/ide/ide-pci-generic.c -@@ -53,7 +53,7 @@ static const struct ide_port_ops netcell_port_ops = { - .udma_mask = ATA_UDMA6, \ - } - --static const struct ide_port_info generic_chipsets[] __devinitdata = { -+static const struct ide_port_info generic_chipsets[] __devinitconst = { - /* 0: Unknown */ - DECLARE_GENERIC_PCI_DEV(0), - -diff --git a/drivers/ide/it8172.c b/drivers/ide/it8172.c -index 560e66d..d5dd180 100644 ---- a/drivers/ide/it8172.c -+++ b/drivers/ide/it8172.c -@@ -115,7 +115,7 @@ static const struct ide_port_ops it8172_port_ops = { - .set_dma_mode = it8172_set_dma_mode, - }; - --static const struct ide_port_info it8172_port_info __devinitdata = { -+static const struct ide_port_info it8172_port_info __devinitconst = { - .name = DRV_NAME, - .port_ops = &it8172_port_ops, - .enablebits = { {0x41, 0x80, 0x80}, {0x00, 0x00, 0x00} }, -diff --git a/drivers/ide/it8213.c b/drivers/ide/it8213.c -index 46816ba..1847aeb 100644 ---- a/drivers/ide/it8213.c -+++ b/drivers/ide/it8213.c -@@ -156,7 +156,7 @@ static const struct ide_port_ops it8213_port_ops = { - .cable_detect = it8213_cable_detect, - }; - --static const struct ide_port_info it8213_chipset __devinitdata = { -+static const struct ide_port_info it8213_chipset __devinitconst = { - .name = DRV_NAME, - .enablebits = { {0x41, 0x80, 0x80} }, - .port_ops = &it8213_port_ops, -diff --git a/drivers/ide/it821x.c b/drivers/ide/it821x.c -index 2e3169f..c5611db 100644 ---- a/drivers/ide/it821x.c -+++ b/drivers/ide/it821x.c -@@ -630,7 +630,7 @@ static const struct ide_port_ops it821x_port_ops = { - .cable_detect = it821x_cable_detect, - }; - --static const struct ide_port_info it821x_chipset __devinitdata = { -+static const struct ide_port_info it821x_chipset __devinitconst = { - .name = DRV_NAME, - .init_chipset = init_chipset_it821x, - .init_hwif = init_hwif_it821x, -diff --git a/drivers/ide/jmicron.c b/drivers/ide/jmicron.c -index 74c2c4a..efddd7d 100644 ---- a/drivers/ide/jmicron.c -+++ b/drivers/ide/jmicron.c -@@ -102,7 +102,7 @@ static const struct ide_port_ops jmicron_port_ops = { - .cable_detect = jmicron_cable_detect, - }; - --static const struct ide_port_info jmicron_chipset __devinitdata = { -+static const struct ide_port_info jmicron_chipset __devinitconst = { - .name = DRV_NAME, - .enablebits = { { 0x40, 0x01, 0x01 }, { 0x40, 0x10, 0x10 } }, - .port_ops = &jmicron_port_ops, -diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c -index 95327a2..73f78d8 100644 ---- a/drivers/ide/ns87415.c -+++ b/drivers/ide/ns87415.c -@@ -293,7 +293,7 @@ static const struct ide_dma_ops ns87415_dma_ops = { - .dma_sff_read_status = superio_dma_sff_read_status, - }; - --static const struct ide_port_info ns87415_chipset __devinitdata = { -+static const struct ide_port_info ns87415_chipset __devinitconst = { - .name = DRV_NAME, - .init_hwif = init_hwif_ns87415, - .tp_ops = &ns87415_tp_ops, -diff --git a/drivers/ide/opti621.c b/drivers/ide/opti621.c -index 1a53a4c..39edc66 100644 ---- a/drivers/ide/opti621.c -+++ b/drivers/ide/opti621.c -@@ -131,7 +131,7 @@ static const struct ide_port_ops opti621_port_ops = { - .set_pio_mode = opti621_set_pio_mode, - }; - --static const struct ide_port_info opti621_chipset __devinitdata = { -+static const struct ide_port_info opti621_chipset __devinitconst = { - .name = DRV_NAME, - .enablebits = { {0x45, 0x80, 0x00}, {0x40, 0x08, 0x00} }, - .port_ops = &opti621_port_ops, -diff --git a/drivers/ide/pdc202xx_new.c b/drivers/ide/pdc202xx_new.c -index 9546fe2..2e5ceb6 100644 ---- a/drivers/ide/pdc202xx_new.c -+++ b/drivers/ide/pdc202xx_new.c -@@ -465,7 +465,7 @@ static const struct ide_port_ops pdcnew_port_ops = { - .udma_mask = udma, \ - } - --static const struct ide_port_info pdcnew_chipsets[] __devinitdata = { -+static const struct ide_port_info pdcnew_chipsets[] __devinitconst = { - /* 0: PDC202{68,70} */ DECLARE_PDCNEW_DEV(ATA_UDMA5), - /* 1: PDC202{69,71,75,76,77} */ DECLARE_PDCNEW_DEV(ATA_UDMA6), - }; -diff --git a/drivers/ide/pdc202xx_old.c b/drivers/ide/pdc202xx_old.c -index 3a35ec6..5634510 100644 ---- a/drivers/ide/pdc202xx_old.c -+++ b/drivers/ide/pdc202xx_old.c -@@ -270,7 +270,7 @@ static const struct ide_dma_ops pdc2026x_dma_ops = { - .max_sectors = sectors, \ - } - --static const struct ide_port_info pdc202xx_chipsets[] __devinitdata = { -+static const struct ide_port_info pdc202xx_chipsets[] __devinitconst = { - { /* 0: PDC20246 */ - .name = DRV_NAME, - .init_chipset = init_chipset_pdc202xx, -diff --git a/drivers/ide/piix.c b/drivers/ide/piix.c -index 1892e81..fe0fd60 100644 ---- a/drivers/ide/piix.c -+++ b/drivers/ide/piix.c -@@ -344,7 +344,7 @@ static const struct ide_port_ops ich_port_ops = { - .udma_mask = udma, \ - } - --static const struct ide_port_info piix_pci_info[] __devinitdata = { -+static const struct ide_port_info piix_pci_info[] __devinitconst = { - /* 0: MPIIX */ - { /* - * MPIIX actually has only a single IDE channel mapped to -diff --git a/drivers/ide/rz1000.c b/drivers/ide/rz1000.c -index a6414a8..c04173e 100644 ---- a/drivers/ide/rz1000.c -+++ b/drivers/ide/rz1000.c -@@ -38,7 +38,7 @@ static int __devinit rz1000_disable_readahead(struct pci_dev *dev) - } - } - --static const struct ide_port_info rz1000_chipset __devinitdata = { -+static const struct ide_port_info rz1000_chipset __devinitconst = { - .name = DRV_NAME, - .host_flags = IDE_HFLAG_NO_DMA, - }; -diff --git a/drivers/ide/sc1200.c b/drivers/ide/sc1200.c -index 356b9b5..d4758eb 100644 ---- a/drivers/ide/sc1200.c -+++ b/drivers/ide/sc1200.c -@@ -291,7 +291,7 @@ static const struct ide_dma_ops sc1200_dma_ops = { - .dma_sff_read_status = ide_dma_sff_read_status, - }; - --static const struct ide_port_info sc1200_chipset __devinitdata = { -+static const struct ide_port_info sc1200_chipset __devinitconst = { - .name = DRV_NAME, - .port_ops = &sc1200_port_ops, - .dma_ops = &sc1200_dma_ops, -diff --git a/drivers/ide/scc_pata.c b/drivers/ide/scc_pata.c -index b7f5b0c..9701038 100644 ---- a/drivers/ide/scc_pata.c -+++ b/drivers/ide/scc_pata.c -@@ -811,7 +811,7 @@ static const struct ide_dma_ops scc_dma_ops = { - .dma_sff_read_status = scc_dma_sff_read_status, - }; - --static const struct ide_port_info scc_chipset __devinitdata = { -+static const struct ide_port_info scc_chipset __devinitconst = { - .name = "sccIDE", - .init_iops = init_iops_scc, - .init_dma = scc_init_dma, -diff --git a/drivers/ide/serverworks.c b/drivers/ide/serverworks.c -index 35fb8da..24d72ef 100644 ---- a/drivers/ide/serverworks.c -+++ b/drivers/ide/serverworks.c -@@ -337,7 +337,7 @@ static const struct ide_port_ops svwks_port_ops = { - .cable_detect = svwks_cable_detect, - }; - --static const struct ide_port_info serverworks_chipsets[] __devinitdata = { -+static const struct ide_port_info serverworks_chipsets[] __devinitconst = { - { /* 0: OSB4 */ - .name = DRV_NAME, - .init_chipset = init_chipset_svwks, -diff --git a/drivers/ide/siimage.c b/drivers/ide/siimage.c -index ddeda44..46f7e30 100644 ---- a/drivers/ide/siimage.c -+++ b/drivers/ide/siimage.c -@@ -719,7 +719,7 @@ static const struct ide_dma_ops sil_dma_ops = { - .udma_mask = ATA_UDMA6, \ - } - --static const struct ide_port_info siimage_chipsets[] __devinitdata = { -+static const struct ide_port_info siimage_chipsets[] __devinitconst = { - /* 0: SiI680 */ DECLARE_SII_DEV(&sil_pata_port_ops), - /* 1: SiI3112 */ DECLARE_SII_DEV(&sil_sata_port_ops) - }; -diff --git a/drivers/ide/sis5513.c b/drivers/ide/sis5513.c -index 4a00225..09e61b4 100644 ---- a/drivers/ide/sis5513.c -+++ b/drivers/ide/sis5513.c -@@ -563,7 +563,7 @@ static const struct ide_port_ops sis_ata133_port_ops = { - .cable_detect = sis_cable_detect, - }; - --static const struct ide_port_info sis5513_chipset __devinitdata = { -+static const struct ide_port_info sis5513_chipset __devinitconst = { - .name = DRV_NAME, - .init_chipset = init_chipset_sis5513, - .enablebits = { {0x4a, 0x02, 0x02}, {0x4a, 0x04, 0x04} }, -diff --git a/drivers/ide/sl82c105.c b/drivers/ide/sl82c105.c -index f21dc2a..d051cd2 100644 ---- a/drivers/ide/sl82c105.c -+++ b/drivers/ide/sl82c105.c -@@ -299,7 +299,7 @@ static const struct ide_dma_ops sl82c105_dma_ops = { - .dma_sff_read_status = ide_dma_sff_read_status, - }; - --static const struct ide_port_info sl82c105_chipset __devinitdata = { -+static const struct ide_port_info sl82c105_chipset __devinitconst = { - .name = DRV_NAME, - .init_chipset = init_chipset_sl82c105, - .enablebits = {{0x40,0x01,0x01}, {0x40,0x10,0x10}}, -diff --git a/drivers/ide/slc90e66.c b/drivers/ide/slc90e66.c -index 864ffe0..863a5e9 100644 ---- a/drivers/ide/slc90e66.c -+++ b/drivers/ide/slc90e66.c -@@ -132,7 +132,7 @@ static const struct ide_port_ops slc90e66_port_ops = { - .cable_detect = slc90e66_cable_detect, - }; - --static const struct ide_port_info slc90e66_chipset __devinitdata = { -+static const struct ide_port_info slc90e66_chipset __devinitconst = { - .name = DRV_NAME, - .enablebits = { {0x41, 0x80, 0x80}, {0x43, 0x80, 0x80} }, - .port_ops = &slc90e66_port_ops, -diff --git a/drivers/ide/tc86c001.c b/drivers/ide/tc86c001.c -index 4799d5c..1794678 100644 ---- a/drivers/ide/tc86c001.c -+++ b/drivers/ide/tc86c001.c -@@ -192,7 +192,7 @@ static const struct ide_dma_ops tc86c001_dma_ops = { - .dma_sff_read_status = ide_dma_sff_read_status, - }; - --static const struct ide_port_info tc86c001_chipset __devinitdata = { -+static const struct ide_port_info tc86c001_chipset __devinitconst = { - .name = DRV_NAME, - .init_hwif = init_hwif_tc86c001, - .port_ops = &tc86c001_port_ops, -diff --git a/drivers/ide/triflex.c b/drivers/ide/triflex.c -index 281c914..55ce1b8 100644 ---- a/drivers/ide/triflex.c -+++ b/drivers/ide/triflex.c -@@ -92,7 +92,7 @@ static const struct ide_port_ops triflex_port_ops = { - .set_dma_mode = triflex_set_mode, - }; - --static const struct ide_port_info triflex_device __devinitdata = { -+static const struct ide_port_info triflex_device __devinitconst = { - .name = DRV_NAME, - .enablebits = {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}}, - .port_ops = &triflex_port_ops, -diff --git a/drivers/ide/trm290.c b/drivers/ide/trm290.c -index 4b42ca0..e494a98 100644 ---- a/drivers/ide/trm290.c -+++ b/drivers/ide/trm290.c -@@ -324,7 +324,7 @@ static struct ide_dma_ops trm290_dma_ops = { - .dma_check = trm290_dma_check, - }; - --static const struct ide_port_info trm290_chipset __devinitdata = { -+static const struct ide_port_info trm290_chipset __devinitconst = { - .name = DRV_NAME, - .init_hwif = init_hwif_trm290, - .tp_ops = &trm290_tp_ops, -diff --git a/drivers/ide/via82cxxx.c b/drivers/ide/via82cxxx.c -index f46f49c..eb77678 100644 ---- a/drivers/ide/via82cxxx.c -+++ b/drivers/ide/via82cxxx.c -@@ -403,7 +403,7 @@ static const struct ide_port_ops via_port_ops = { - .cable_detect = via82cxxx_cable_detect, - }; - --static const struct ide_port_info via82cxxx_chipset __devinitdata = { -+static const struct ide_port_info via82cxxx_chipset __devinitconst = { - .name = DRV_NAME, - .init_chipset = init_chipset_via82cxxx, - .enablebits = { { 0x40, 0x02, 0x02 }, { 0x40, 0x01, 0x01 } }, -diff --git a/drivers/ieee802154/fakehard.c b/drivers/ieee802154/fakehard.c -index 73d4531..c90cd2d 100644 ---- a/drivers/ieee802154/fakehard.c -+++ b/drivers/ieee802154/fakehard.c -@@ -386,7 +386,7 @@ static int __devinit ieee802154fake_probe(struct platform_device *pdev) - phy->transmit_power = 0xbf; - - dev->netdev_ops = &fake_ops; -- dev->ml_priv = &fake_mlme; -+ dev->ml_priv = (void *)&fake_mlme; - - priv = netdev_priv(dev); - priv->phy = phy; -diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c -index c889aae..6cf5aa7 100644 ---- a/drivers/infiniband/core/cm.c -+++ b/drivers/infiniband/core/cm.c -@@ -114,7 +114,7 @@ static char const counter_group_names[CM_COUNTER_GROUPS] - - struct cm_counter_group { - struct kobject obj; -- atomic_long_t counter[CM_ATTR_COUNT]; -+ atomic_long_unchecked_t counter[CM_ATTR_COUNT]; - }; - - struct cm_counter_attribute { -@@ -1394,7 +1394,7 @@ static void cm_dup_req_handler(struct cm_work *work, - struct ib_mad_send_buf *msg = NULL; - int ret; - -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_REQ_COUNTER]); - - /* Quick state check to discard duplicate REQs. */ -@@ -1778,7 +1778,7 @@ static void cm_dup_rep_handler(struct cm_work *work) - if (!cm_id_priv) - return; - -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_REP_COUNTER]); - ret = cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg); - if (ret) -@@ -1945,7 +1945,7 @@ static int cm_rtu_handler(struct cm_work *work) - if (cm_id_priv->id.state != IB_CM_REP_SENT && - cm_id_priv->id.state != IB_CM_MRA_REP_RCVD) { - spin_unlock_irq(&cm_id_priv->lock); -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_RTU_COUNTER]); - goto out; - } -@@ -2128,7 +2128,7 @@ static int cm_dreq_handler(struct cm_work *work) - cm_id_priv = cm_acquire_id(dreq_msg->remote_comm_id, - dreq_msg->local_comm_id); - if (!cm_id_priv) { -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_DREQ_COUNTER]); - cm_issue_drep(work->port, work->mad_recv_wc); - return -EINVAL; -@@ -2153,7 +2153,7 @@ static int cm_dreq_handler(struct cm_work *work) - case IB_CM_MRA_REP_RCVD: - break; - case IB_CM_TIMEWAIT: -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_DREQ_COUNTER]); - if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg)) - goto unlock; -@@ -2167,7 +2167,7 @@ static int cm_dreq_handler(struct cm_work *work) - cm_free_msg(msg); - goto deref; - case IB_CM_DREQ_RCVD: -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_DREQ_COUNTER]); - goto unlock; - default: -@@ -2534,7 +2534,7 @@ static int cm_mra_handler(struct cm_work *work) - ib_modify_mad(cm_id_priv->av.port->mad_agent, - cm_id_priv->msg, timeout)) { - if (cm_id_priv->id.lap_state == IB_CM_MRA_LAP_RCVD) -- atomic_long_inc(&work->port-> -+ atomic_long_inc_unchecked(&work->port-> - counter_group[CM_RECV_DUPLICATES]. - counter[CM_MRA_COUNTER]); - goto out; -@@ -2543,7 +2543,7 @@ static int cm_mra_handler(struct cm_work *work) - break; - case IB_CM_MRA_REQ_RCVD: - case IB_CM_MRA_REP_RCVD: -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_MRA_COUNTER]); - /* fall through */ - default: -@@ -2705,7 +2705,7 @@ static int cm_lap_handler(struct cm_work *work) - case IB_CM_LAP_IDLE: - break; - case IB_CM_MRA_LAP_SENT: -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_LAP_COUNTER]); - if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg)) - goto unlock; -@@ -2721,7 +2721,7 @@ static int cm_lap_handler(struct cm_work *work) - cm_free_msg(msg); - goto deref; - case IB_CM_LAP_RCVD: -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_LAP_COUNTER]); - goto unlock; - default: -@@ -3005,7 +3005,7 @@ static int cm_sidr_req_handler(struct cm_work *work) - cur_cm_id_priv = cm_insert_remote_sidr(cm_id_priv); - if (cur_cm_id_priv) { - spin_unlock_irq(&cm.lock); -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_SIDR_REQ_COUNTER]); - goto out; /* Duplicate message. */ - } -@@ -3217,10 +3217,10 @@ static void cm_send_handler(struct ib_mad_agent *mad_agent, - if (!msg->context[0] && (attr_index != CM_REJ_COUNTER)) - msg->retries = 1; - -- atomic_long_add(1 + msg->retries, -+ atomic_long_add_unchecked(1 + msg->retries, - &port->counter_group[CM_XMIT].counter[attr_index]); - if (msg->retries) -- atomic_long_add(msg->retries, -+ atomic_long_add_unchecked(msg->retries, - &port->counter_group[CM_XMIT_RETRIES]. - counter[attr_index]); - -@@ -3430,7 +3430,7 @@ static void cm_recv_handler(struct ib_mad_agent *mad_agent, - } - - attr_id = be16_to_cpu(mad_recv_wc->recv_buf.mad->mad_hdr.attr_id); -- atomic_long_inc(&port->counter_group[CM_RECV]. -+ atomic_long_inc_unchecked(&port->counter_group[CM_RECV]. - counter[attr_id - CM_ATTR_ID_OFFSET]); - - work = kmalloc(sizeof *work + sizeof(struct ib_sa_path_rec) * paths, -@@ -3635,7 +3635,7 @@ static ssize_t cm_show_counter(struct kobject *obj, struct attribute *attr, - cm_attr = container_of(attr, struct cm_counter_attribute, attr); - - return sprintf(buf, "%ld\n", -- atomic_long_read(&group->counter[cm_attr->index])); -+ atomic_long_read_unchecked(&group->counter[cm_attr->index])); - } - - static const struct sysfs_ops cm_counter_ops = { -diff --git a/drivers/infiniband/core/fmr_pool.c b/drivers/infiniband/core/fmr_pool.c -index 176c8f9..2627b62 100644 ---- a/drivers/infiniband/core/fmr_pool.c -+++ b/drivers/infiniband/core/fmr_pool.c -@@ -98,8 +98,8 @@ struct ib_fmr_pool { - - struct task_struct *thread; - -- atomic_t req_ser; -- atomic_t flush_ser; -+ atomic_unchecked_t req_ser; -+ atomic_unchecked_t flush_ser; - - wait_queue_head_t force_wait; - }; -@@ -180,10 +180,10 @@ static int ib_fmr_cleanup_thread(void *pool_ptr) - struct ib_fmr_pool *pool = pool_ptr; - - do { -- if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) < 0) { -+ if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) < 0) { - ib_fmr_batch_release(pool); - -- atomic_inc(&pool->flush_ser); -+ atomic_inc_unchecked(&pool->flush_ser); - wake_up_interruptible(&pool->force_wait); - - if (pool->flush_function) -@@ -191,7 +191,7 @@ static int ib_fmr_cleanup_thread(void *pool_ptr) - } - - set_current_state(TASK_INTERRUPTIBLE); -- if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) >= 0 && -+ if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) >= 0 && - !kthread_should_stop()) - schedule(); - __set_current_state(TASK_RUNNING); -@@ -283,8 +283,8 @@ struct ib_fmr_pool *ib_create_fmr_pool(struct ib_pd *pd, - pool->dirty_watermark = params->dirty_watermark; - pool->dirty_len = 0; - spin_lock_init(&pool->pool_lock); -- atomic_set(&pool->req_ser, 0); -- atomic_set(&pool->flush_ser, 0); -+ atomic_set_unchecked(&pool->req_ser, 0); -+ atomic_set_unchecked(&pool->flush_ser, 0); - init_waitqueue_head(&pool->force_wait); - - pool->thread = kthread_run(ib_fmr_cleanup_thread, -@@ -412,11 +412,11 @@ int ib_flush_fmr_pool(struct ib_fmr_pool *pool) - } - spin_unlock_irq(&pool->pool_lock); - -- serial = atomic_inc_return(&pool->req_ser); -+ serial = atomic_inc_return_unchecked(&pool->req_ser); - wake_up_process(pool->thread); - - if (wait_event_interruptible(pool->force_wait, -- atomic_read(&pool->flush_ser) - serial >= 0)) -+ atomic_read_unchecked(&pool->flush_ser) - serial >= 0)) - return -EINTR; - - return 0; -@@ -526,7 +526,7 @@ int ib_fmr_pool_unmap(struct ib_pool_fmr *fmr) - } else { - list_add_tail(&fmr->list, &pool->dirty_list); - if (++pool->dirty_len >= pool->dirty_watermark) { -- atomic_inc(&pool->req_ser); -+ atomic_inc_unchecked(&pool->req_ser); - wake_up_process(pool->thread); - } - } -diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c -index 40c8353..946b0e4 100644 ---- a/drivers/infiniband/hw/cxgb4/mem.c -+++ b/drivers/infiniband/hw/cxgb4/mem.c -@@ -122,7 +122,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry, - int err; - struct fw_ri_tpte tpt; - u32 stag_idx; -- static atomic_t key; -+ static atomic_unchecked_t key; - - if (c4iw_fatal_error(rdev)) - return -EIO; -@@ -135,7 +135,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry, - &rdev->resource.tpt_fifo_lock); - if (!stag_idx) - return -ENOMEM; -- *stag = (stag_idx << 8) | (atomic_inc_return(&key) & 0xff); -+ *stag = (stag_idx << 8) | (atomic_inc_return_unchecked(&key) & 0xff); - } - PDBG("%s stag_state 0x%0x type 0x%0x pdid 0x%0x, stag_idx 0x%x\n", - __func__, stag_state, type, pdid, stag_idx); -diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c -index 79b3dbc..96e5fcc 100644 ---- a/drivers/infiniband/hw/ipath/ipath_rc.c -+++ b/drivers/infiniband/hw/ipath/ipath_rc.c -@@ -1868,7 +1868,7 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr, - struct ib_atomic_eth *ateth; - struct ipath_ack_entry *e; - u64 vaddr; -- atomic64_t *maddr; -+ atomic64_unchecked_t *maddr; - u64 sdata; - u32 rkey; - u8 next; -@@ -1903,11 +1903,11 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr, - IB_ACCESS_REMOTE_ATOMIC))) - goto nack_acc_unlck; - /* Perform atomic OP and save result. */ -- maddr = (atomic64_t *) qp->r_sge.sge.vaddr; -+ maddr = (atomic64_unchecked_t *) qp->r_sge.sge.vaddr; - sdata = be64_to_cpu(ateth->swap_data); - e = &qp->s_ack_queue[qp->r_head_ack_queue]; - e->atomic_data = (opcode == OP(FETCH_ADD)) ? -- (u64) atomic64_add_return(sdata, maddr) - sdata : -+ (u64) atomic64_add_return_unchecked(sdata, maddr) - sdata : - (u64) cmpxchg((u64 *) qp->r_sge.sge.vaddr, - be64_to_cpu(ateth->compare_data), - sdata); -diff --git a/drivers/infiniband/hw/ipath/ipath_ruc.c b/drivers/infiniband/hw/ipath/ipath_ruc.c -index 1f95bba..9530f87 100644 ---- a/drivers/infiniband/hw/ipath/ipath_ruc.c -+++ b/drivers/infiniband/hw/ipath/ipath_ruc.c -@@ -266,7 +266,7 @@ static void ipath_ruc_loopback(struct ipath_qp *sqp) - unsigned long flags; - struct ib_wc wc; - u64 sdata; -- atomic64_t *maddr; -+ atomic64_unchecked_t *maddr; - enum ib_wc_status send_status; - - /* -@@ -382,11 +382,11 @@ again: - IB_ACCESS_REMOTE_ATOMIC))) - goto acc_err; - /* Perform atomic OP and save result. */ -- maddr = (atomic64_t *) qp->r_sge.sge.vaddr; -+ maddr = (atomic64_unchecked_t *) qp->r_sge.sge.vaddr; - sdata = wqe->wr.wr.atomic.compare_add; - *(u64 *) sqp->s_sge.sge.vaddr = - (wqe->wr.opcode == IB_WR_ATOMIC_FETCH_AND_ADD) ? -- (u64) atomic64_add_return(sdata, maddr) - sdata : -+ (u64) atomic64_add_return_unchecked(sdata, maddr) - sdata : - (u64) cmpxchg((u64 *) qp->r_sge.sge.vaddr, - sdata, wqe->wr.wr.atomic.swap); - goto send_comp; -diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c -index 7140199..da60063 100644 ---- a/drivers/infiniband/hw/nes/nes.c -+++ b/drivers/infiniband/hw/nes/nes.c -@@ -103,7 +103,7 @@ MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes"); - LIST_HEAD(nes_adapter_list); - static LIST_HEAD(nes_dev_list); - --atomic_t qps_destroyed; -+atomic_unchecked_t qps_destroyed; - - static unsigned int ee_flsh_adapter; - static unsigned int sysfs_nonidx_addr; -@@ -272,7 +272,7 @@ static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_r - struct nes_qp *nesqp = cqp_request->cqp_callback_pointer; - struct nes_adapter *nesadapter = nesdev->nesadapter; - -- atomic_inc(&qps_destroyed); -+ atomic_inc_unchecked(&qps_destroyed); - - /* Free the control structures */ - -diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h -index c438e46..ca30356 100644 ---- a/drivers/infiniband/hw/nes/nes.h -+++ b/drivers/infiniband/hw/nes/nes.h -@@ -178,17 +178,17 @@ extern unsigned int nes_debug_level; - extern unsigned int wqm_quanta; - extern struct list_head nes_adapter_list; - --extern atomic_t cm_connects; --extern atomic_t cm_accepts; --extern atomic_t cm_disconnects; --extern atomic_t cm_closes; --extern atomic_t cm_connecteds; --extern atomic_t cm_connect_reqs; --extern atomic_t cm_rejects; --extern atomic_t mod_qp_timouts; --extern atomic_t qps_created; --extern atomic_t qps_destroyed; --extern atomic_t sw_qps_destroyed; -+extern atomic_unchecked_t cm_connects; -+extern atomic_unchecked_t cm_accepts; -+extern atomic_unchecked_t cm_disconnects; -+extern atomic_unchecked_t cm_closes; -+extern atomic_unchecked_t cm_connecteds; -+extern atomic_unchecked_t cm_connect_reqs; -+extern atomic_unchecked_t cm_rejects; -+extern atomic_unchecked_t mod_qp_timouts; -+extern atomic_unchecked_t qps_created; -+extern atomic_unchecked_t qps_destroyed; -+extern atomic_unchecked_t sw_qps_destroyed; - extern u32 mh_detected; - extern u32 mh_pauses_sent; - extern u32 cm_packets_sent; -@@ -197,16 +197,16 @@ extern u32 cm_packets_created; - extern u32 cm_packets_received; - extern u32 cm_packets_dropped; - extern u32 cm_packets_retrans; --extern atomic_t cm_listens_created; --extern atomic_t cm_listens_destroyed; -+extern atomic_unchecked_t cm_listens_created; -+extern atomic_unchecked_t cm_listens_destroyed; - extern u32 cm_backlog_drops; --extern atomic_t cm_loopbacks; --extern atomic_t cm_nodes_created; --extern atomic_t cm_nodes_destroyed; --extern atomic_t cm_accel_dropped_pkts; --extern atomic_t cm_resets_recvd; --extern atomic_t pau_qps_created; --extern atomic_t pau_qps_destroyed; -+extern atomic_unchecked_t cm_loopbacks; -+extern atomic_unchecked_t cm_nodes_created; -+extern atomic_unchecked_t cm_nodes_destroyed; -+extern atomic_unchecked_t cm_accel_dropped_pkts; -+extern atomic_unchecked_t cm_resets_recvd; -+extern atomic_unchecked_t pau_qps_created; -+extern atomic_unchecked_t pau_qps_destroyed; - - extern u32 int_mod_timer_init; - extern u32 int_mod_cq_depth_256; -diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c -index 71edfbb..15b62ae 100644 ---- a/drivers/infiniband/hw/nes/nes_cm.c -+++ b/drivers/infiniband/hw/nes/nes_cm.c -@@ -68,14 +68,14 @@ u32 cm_packets_dropped; - u32 cm_packets_retrans; - u32 cm_packets_created; - u32 cm_packets_received; --atomic_t cm_listens_created; --atomic_t cm_listens_destroyed; -+atomic_unchecked_t cm_listens_created; -+atomic_unchecked_t cm_listens_destroyed; - u32 cm_backlog_drops; --atomic_t cm_loopbacks; --atomic_t cm_nodes_created; --atomic_t cm_nodes_destroyed; --atomic_t cm_accel_dropped_pkts; --atomic_t cm_resets_recvd; -+atomic_unchecked_t cm_loopbacks; -+atomic_unchecked_t cm_nodes_created; -+atomic_unchecked_t cm_nodes_destroyed; -+atomic_unchecked_t cm_accel_dropped_pkts; -+atomic_unchecked_t cm_resets_recvd; - - static inline int mini_cm_accelerated(struct nes_cm_core *, struct nes_cm_node *); - static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *, struct nes_vnic *, struct nes_cm_info *); -@@ -148,13 +148,13 @@ static struct nes_cm_ops nes_cm_api = { - - static struct nes_cm_core *g_cm_core; - --atomic_t cm_connects; --atomic_t cm_accepts; --atomic_t cm_disconnects; --atomic_t cm_closes; --atomic_t cm_connecteds; --atomic_t cm_connect_reqs; --atomic_t cm_rejects; -+atomic_unchecked_t cm_connects; -+atomic_unchecked_t cm_accepts; -+atomic_unchecked_t cm_disconnects; -+atomic_unchecked_t cm_closes; -+atomic_unchecked_t cm_connecteds; -+atomic_unchecked_t cm_connect_reqs; -+atomic_unchecked_t cm_rejects; - - int nes_add_ref_cm_node(struct nes_cm_node *cm_node) - { -@@ -1279,7 +1279,7 @@ static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core, - kfree(listener); - listener = NULL; - ret = 0; -- atomic_inc(&cm_listens_destroyed); -+ atomic_inc_unchecked(&cm_listens_destroyed); - } else { - spin_unlock_irqrestore(&cm_core->listen_list_lock, flags); - } -@@ -1482,7 +1482,7 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core, - cm_node->rem_mac); - - add_hte_node(cm_core, cm_node); -- atomic_inc(&cm_nodes_created); -+ atomic_inc_unchecked(&cm_nodes_created); - - return cm_node; - } -@@ -1540,7 +1540,7 @@ static int rem_ref_cm_node(struct nes_cm_core *cm_core, - } - - atomic_dec(&cm_core->node_cnt); -- atomic_inc(&cm_nodes_destroyed); -+ atomic_inc_unchecked(&cm_nodes_destroyed); - nesqp = cm_node->nesqp; - if (nesqp) { - nesqp->cm_node = NULL; -@@ -1604,7 +1604,7 @@ static int process_options(struct nes_cm_node *cm_node, u8 *optionsloc, - - static void drop_packet(struct sk_buff *skb) - { -- atomic_inc(&cm_accel_dropped_pkts); -+ atomic_inc_unchecked(&cm_accel_dropped_pkts); - dev_kfree_skb_any(skb); - } - -@@ -1667,7 +1667,7 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, - { - - int reset = 0; /* whether to send reset in case of err.. */ -- atomic_inc(&cm_resets_recvd); -+ atomic_inc_unchecked(&cm_resets_recvd); - nes_debug(NES_DBG_CM, "Received Reset, cm_node = %p, state = %u." - " refcnt=%d\n", cm_node, cm_node->state, - atomic_read(&cm_node->ref_count)); -@@ -2308,7 +2308,7 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core, - rem_ref_cm_node(cm_node->cm_core, cm_node); - return NULL; - } -- atomic_inc(&cm_loopbacks); -+ atomic_inc_unchecked(&cm_loopbacks); - loopbackremotenode->loopbackpartner = cm_node; - loopbackremotenode->tcp_cntxt.rcv_wscale = - NES_CM_DEFAULT_RCV_WND_SCALE; -@@ -2583,7 +2583,7 @@ static int mini_cm_recv_pkt(struct nes_cm_core *cm_core, - nes_queue_mgt_skbs(skb, nesvnic, cm_node->nesqp); - else { - rem_ref_cm_node(cm_core, cm_node); -- atomic_inc(&cm_accel_dropped_pkts); -+ atomic_inc_unchecked(&cm_accel_dropped_pkts); - dev_kfree_skb_any(skb); - } - break; -@@ -2890,7 +2890,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp) - - if ((cm_id) && (cm_id->event_handler)) { - if (issue_disconn) { -- atomic_inc(&cm_disconnects); -+ atomic_inc_unchecked(&cm_disconnects); - cm_event.event = IW_CM_EVENT_DISCONNECT; - cm_event.status = disconn_status; - cm_event.local_addr = cm_id->local_addr; -@@ -2912,7 +2912,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp) - } - - if (issue_close) { -- atomic_inc(&cm_closes); -+ atomic_inc_unchecked(&cm_closes); - nes_disconnect(nesqp, 1); - - cm_id->provider_data = nesqp; -@@ -3048,7 +3048,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) - - nes_debug(NES_DBG_CM, "QP%u, cm_node=%p, jiffies = %lu listener = %p\n", - nesqp->hwqp.qp_id, cm_node, jiffies, cm_node->listener); -- atomic_inc(&cm_accepts); -+ atomic_inc_unchecked(&cm_accepts); - - nes_debug(NES_DBG_CM, "netdev refcnt = %u.\n", - netdev_refcnt_read(nesvnic->netdev)); -@@ -3250,7 +3250,7 @@ int nes_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len) - struct nes_cm_core *cm_core; - u8 *start_buff; - -- atomic_inc(&cm_rejects); -+ atomic_inc_unchecked(&cm_rejects); - cm_node = (struct nes_cm_node *)cm_id->provider_data; - loopback = cm_node->loopbackpartner; - cm_core = cm_node->cm_core; -@@ -3310,7 +3310,7 @@ int nes_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) - ntohl(cm_id->local_addr.sin_addr.s_addr), - ntohs(cm_id->local_addr.sin_port)); - -- atomic_inc(&cm_connects); -+ atomic_inc_unchecked(&cm_connects); - nesqp->active_conn = 1; - - /* cache the cm_id in the qp */ -@@ -3416,7 +3416,7 @@ int nes_create_listen(struct iw_cm_id *cm_id, int backlog) - g_cm_core->api->stop_listener(g_cm_core, (void *)cm_node); - return err; - } -- atomic_inc(&cm_listens_created); -+ atomic_inc_unchecked(&cm_listens_created); - } - - cm_id->add_ref(cm_id); -@@ -3517,7 +3517,7 @@ static void cm_event_connected(struct nes_cm_event *event) - - if (nesqp->destroyed) - return; -- atomic_inc(&cm_connecteds); -+ atomic_inc_unchecked(&cm_connecteds); - nes_debug(NES_DBG_CM, "QP%u attempting to connect to 0x%08X:0x%04X on" - " local port 0x%04X. jiffies = %lu.\n", - nesqp->hwqp.qp_id, -@@ -3704,7 +3704,7 @@ static void cm_event_reset(struct nes_cm_event *event) - - cm_id->add_ref(cm_id); - ret = cm_id->event_handler(cm_id, &cm_event); -- atomic_inc(&cm_closes); -+ atomic_inc_unchecked(&cm_closes); - cm_event.event = IW_CM_EVENT_CLOSE; - cm_event.status = 0; - cm_event.provider_data = cm_id->provider_data; -@@ -3740,7 +3740,7 @@ static void cm_event_mpa_req(struct nes_cm_event *event) - return; - cm_id = cm_node->cm_id; - -- atomic_inc(&cm_connect_reqs); -+ atomic_inc_unchecked(&cm_connect_reqs); - nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n", - cm_node, cm_id, jiffies); - -@@ -3780,7 +3780,7 @@ static void cm_event_mpa_reject(struct nes_cm_event *event) - return; - cm_id = cm_node->cm_id; - -- atomic_inc(&cm_connect_reqs); -+ atomic_inc_unchecked(&cm_connect_reqs); - nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n", - cm_node, cm_id, jiffies); - -diff --git a/drivers/infiniband/hw/nes/nes_mgt.c b/drivers/infiniband/hw/nes/nes_mgt.c -index 3ba7be3..c81f6ff 100644 ---- a/drivers/infiniband/hw/nes/nes_mgt.c -+++ b/drivers/infiniband/hw/nes/nes_mgt.c -@@ -40,8 +40,8 @@ - #include "nes.h" - #include "nes_mgt.h" - --atomic_t pau_qps_created; --atomic_t pau_qps_destroyed; -+atomic_unchecked_t pau_qps_created; -+atomic_unchecked_t pau_qps_destroyed; - - static void nes_replenish_mgt_rq(struct nes_vnic_mgt *mgtvnic) - { -@@ -621,7 +621,7 @@ void nes_destroy_pau_qp(struct nes_device *nesdev, struct nes_qp *nesqp) - { - struct sk_buff *skb; - unsigned long flags; -- atomic_inc(&pau_qps_destroyed); -+ atomic_inc_unchecked(&pau_qps_destroyed); - - /* Free packets that have not yet been forwarded */ - /* Lock is acquired by skb_dequeue when removing the skb */ -@@ -812,7 +812,7 @@ static void nes_mgt_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq * - cq->cq_vbase[head].cqe_words[NES_NIC_CQE_HASH_RCVNXT]); - skb_queue_head_init(&nesqp->pau_list); - spin_lock_init(&nesqp->pau_lock); -- atomic_inc(&pau_qps_created); -+ atomic_inc_unchecked(&pau_qps_created); - nes_change_quad_hash(nesdev, mgtvnic->nesvnic, nesqp); - } - -diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c -index f3a3ecf..57d311d 100644 ---- a/drivers/infiniband/hw/nes/nes_nic.c -+++ b/drivers/infiniband/hw/nes/nes_nic.c -@@ -1277,39 +1277,39 @@ static void nes_netdev_get_ethtool_stats(struct net_device *netdev, - target_stat_values[++index] = mh_detected; - target_stat_values[++index] = mh_pauses_sent; - target_stat_values[++index] = nesvnic->endnode_ipv4_tcp_retransmits; -- target_stat_values[++index] = atomic_read(&cm_connects); -- target_stat_values[++index] = atomic_read(&cm_accepts); -- target_stat_values[++index] = atomic_read(&cm_disconnects); -- target_stat_values[++index] = atomic_read(&cm_connecteds); -- target_stat_values[++index] = atomic_read(&cm_connect_reqs); -- target_stat_values[++index] = atomic_read(&cm_rejects); -- target_stat_values[++index] = atomic_read(&mod_qp_timouts); -- target_stat_values[++index] = atomic_read(&qps_created); -- target_stat_values[++index] = atomic_read(&sw_qps_destroyed); -- target_stat_values[++index] = atomic_read(&qps_destroyed); -- target_stat_values[++index] = atomic_read(&cm_closes); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_connects); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_accepts); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_disconnects); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_connecteds); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_connect_reqs); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_rejects); -+ target_stat_values[++index] = atomic_read_unchecked(&mod_qp_timouts); -+ target_stat_values[++index] = atomic_read_unchecked(&qps_created); -+ target_stat_values[++index] = atomic_read_unchecked(&sw_qps_destroyed); -+ target_stat_values[++index] = atomic_read_unchecked(&qps_destroyed); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_closes); - target_stat_values[++index] = cm_packets_sent; - target_stat_values[++index] = cm_packets_bounced; - target_stat_values[++index] = cm_packets_created; - target_stat_values[++index] = cm_packets_received; - target_stat_values[++index] = cm_packets_dropped; - target_stat_values[++index] = cm_packets_retrans; -- target_stat_values[++index] = atomic_read(&cm_listens_created); -- target_stat_values[++index] = atomic_read(&cm_listens_destroyed); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_listens_created); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_listens_destroyed); - target_stat_values[++index] = cm_backlog_drops; -- target_stat_values[++index] = atomic_read(&cm_loopbacks); -- target_stat_values[++index] = atomic_read(&cm_nodes_created); -- target_stat_values[++index] = atomic_read(&cm_nodes_destroyed); -- target_stat_values[++index] = atomic_read(&cm_accel_dropped_pkts); -- target_stat_values[++index] = atomic_read(&cm_resets_recvd); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_loopbacks); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_created); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_destroyed); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_accel_dropped_pkts); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_resets_recvd); - target_stat_values[++index] = nesadapter->free_4kpbl; - target_stat_values[++index] = nesadapter->free_256pbl; - target_stat_values[++index] = int_mod_timer_init; - target_stat_values[++index] = nesvnic->lro_mgr.stats.aggregated; - target_stat_values[++index] = nesvnic->lro_mgr.stats.flushed; - target_stat_values[++index] = nesvnic->lro_mgr.stats.no_desc; -- target_stat_values[++index] = atomic_read(&pau_qps_created); -- target_stat_values[++index] = atomic_read(&pau_qps_destroyed); -+ target_stat_values[++index] = atomic_read_unchecked(&pau_qps_created); -+ target_stat_values[++index] = atomic_read_unchecked(&pau_qps_destroyed); - } - - /** -diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c -index 8b8812d..a5e1133 100644 ---- a/drivers/infiniband/hw/nes/nes_verbs.c -+++ b/drivers/infiniband/hw/nes/nes_verbs.c -@@ -46,9 +46,9 @@ - - #include <rdma/ib_umem.h> - --atomic_t mod_qp_timouts; --atomic_t qps_created; --atomic_t sw_qps_destroyed; -+atomic_unchecked_t mod_qp_timouts; -+atomic_unchecked_t qps_created; -+atomic_unchecked_t sw_qps_destroyed; - - static void nes_unregister_ofa_device(struct nes_ib_device *nesibdev); - -@@ -1131,7 +1131,7 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd, - if (init_attr->create_flags) - return ERR_PTR(-EINVAL); - -- atomic_inc(&qps_created); -+ atomic_inc_unchecked(&qps_created); - switch (init_attr->qp_type) { - case IB_QPT_RC: - if (nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) { -@@ -1460,7 +1460,7 @@ static int nes_destroy_qp(struct ib_qp *ibqp) - struct iw_cm_event cm_event; - int ret = 0; - -- atomic_inc(&sw_qps_destroyed); -+ atomic_inc_unchecked(&sw_qps_destroyed); - nesqp->destroyed = 1; - - /* Blow away the connection if it exists. */ -diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h -index 6b811e3..f8acf88 100644 ---- a/drivers/infiniband/hw/qib/qib.h -+++ b/drivers/infiniband/hw/qib/qib.h -@@ -51,6 +51,7 @@ - #include <linux/completion.h> - #include <linux/kref.h> - #include <linux/sched.h> -+#include <linux/slab.h> - - #include "qib_common.h" - #include "qib_verbs.h" -diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c -index da739d9..da1c7f4 100644 ---- a/drivers/input/gameport/gameport.c -+++ b/drivers/input/gameport/gameport.c -@@ -487,14 +487,14 @@ EXPORT_SYMBOL(gameport_set_phys); - */ - static void gameport_init_port(struct gameport *gameport) - { -- static atomic_t gameport_no = ATOMIC_INIT(0); -+ static atomic_unchecked_t gameport_no = ATOMIC_INIT(0); - - __module_get(THIS_MODULE); - - mutex_init(&gameport->drv_mutex); - device_initialize(&gameport->dev); - dev_set_name(&gameport->dev, "gameport%lu", -- (unsigned long)atomic_inc_return(&gameport_no) - 1); -+ (unsigned long)atomic_inc_return_unchecked(&gameport_no) - 1); - gameport->dev.bus = &gameport_bus; - gameport->dev.release = gameport_release_port; - if (gameport->parent) -diff --git a/drivers/input/input.c b/drivers/input/input.c -index 8921c61..f5cd63d 100644 ---- a/drivers/input/input.c -+++ b/drivers/input/input.c -@@ -1814,7 +1814,7 @@ static void input_cleanse_bitmasks(struct input_dev *dev) - */ - int input_register_device(struct input_dev *dev) - { -- static atomic_t input_no = ATOMIC_INIT(0); -+ static atomic_unchecked_t input_no = ATOMIC_INIT(0); - struct input_handler *handler; - const char *path; - int error; -@@ -1851,7 +1851,7 @@ int input_register_device(struct input_dev *dev) - dev->setkeycode = input_default_setkeycode; - - dev_set_name(&dev->dev, "input%ld", -- (unsigned long) atomic_inc_return(&input_no) - 1); -+ (unsigned long) atomic_inc_return_unchecked(&input_no) - 1); - - error = device_add(&dev->dev); - if (error) -diff --git a/drivers/input/joystick/sidewinder.c b/drivers/input/joystick/sidewinder.c -index b8d8611..7a4a04b 100644 ---- a/drivers/input/joystick/sidewinder.c -+++ b/drivers/input/joystick/sidewinder.c -@@ -30,6 +30,7 @@ - #include <linux/kernel.h> - #include <linux/module.h> - #include <linux/slab.h> -+#include <linux/sched.h> - #include <linux/init.h> - #include <linux/input.h> - #include <linux/gameport.h> -diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c -index fd7a0d5..a4af10c 100644 ---- a/drivers/input/joystick/xpad.c -+++ b/drivers/input/joystick/xpad.c -@@ -710,7 +710,7 @@ static void xpad_led_set(struct led_classdev *led_cdev, - - static int xpad_led_probe(struct usb_xpad *xpad) - { -- static atomic_t led_seq = ATOMIC_INIT(0); -+ static atomic_unchecked_t led_seq = ATOMIC_INIT(0); - long led_no; - struct xpad_led *led; - struct led_classdev *led_cdev; -@@ -723,7 +723,7 @@ static int xpad_led_probe(struct usb_xpad *xpad) - if (!led) - return -ENOMEM; - -- led_no = (long)atomic_inc_return(&led_seq) - 1; -+ led_no = (long)atomic_inc_return_unchecked(&led_seq) - 1; - - snprintf(led->name, sizeof(led->name), "xpad%ld", led_no); - led->xpad = xpad; -diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c -index 0110b5a..d3ad144 100644 ---- a/drivers/input/mousedev.c -+++ b/drivers/input/mousedev.c -@@ -763,7 +763,7 @@ static ssize_t mousedev_read(struct file *file, char __user *buffer, - - spin_unlock_irq(&client->packet_lock); - -- if (copy_to_user(buffer, data, count)) -+ if (count > sizeof(data) || copy_to_user(buffer, data, count)) - return -EFAULT; - - return count; -diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c -index d0f7533..fb8215b 100644 ---- a/drivers/input/serio/serio.c -+++ b/drivers/input/serio/serio.c -@@ -496,7 +496,7 @@ static void serio_release_port(struct device *dev) - */ - static void serio_init_port(struct serio *serio) - { -- static atomic_t serio_no = ATOMIC_INIT(0); -+ static atomic_unchecked_t serio_no = ATOMIC_INIT(0); - - __module_get(THIS_MODULE); - -@@ -507,7 +507,7 @@ static void serio_init_port(struct serio *serio) - mutex_init(&serio->drv_mutex); - device_initialize(&serio->dev); - dev_set_name(&serio->dev, "serio%ld", -- (long)atomic_inc_return(&serio_no) - 1); -+ (long)atomic_inc_return_unchecked(&serio_no) - 1); - serio->dev.bus = &serio_bus; - serio->dev.release = serio_release_port; - serio->dev.groups = serio_device_attr_groups; -diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c -index b902794..fc7b85b 100644 ---- a/drivers/isdn/capi/capi.c -+++ b/drivers/isdn/capi/capi.c -@@ -83,8 +83,8 @@ struct capiminor { - - struct capi20_appl *ap; - u32 ncci; -- atomic_t datahandle; -- atomic_t msgid; -+ atomic_unchecked_t datahandle; -+ atomic_unchecked_t msgid; - - struct tty_port port; - int ttyinstop; -@@ -397,7 +397,7 @@ gen_data_b3_resp_for(struct capiminor *mp, struct sk_buff *skb) - capimsg_setu16(s, 2, mp->ap->applid); - capimsg_setu8 (s, 4, CAPI_DATA_B3); - capimsg_setu8 (s, 5, CAPI_RESP); -- capimsg_setu16(s, 6, atomic_inc_return(&mp->msgid)); -+ capimsg_setu16(s, 6, atomic_inc_return_unchecked(&mp->msgid)); - capimsg_setu32(s, 8, mp->ncci); - capimsg_setu16(s, 12, datahandle); - } -@@ -518,14 +518,14 @@ static void handle_minor_send(struct capiminor *mp) - mp->outbytes -= len; - spin_unlock_bh(&mp->outlock); - -- datahandle = atomic_inc_return(&mp->datahandle); -+ datahandle = atomic_inc_return_unchecked(&mp->datahandle); - skb_push(skb, CAPI_DATA_B3_REQ_LEN); - memset(skb->data, 0, CAPI_DATA_B3_REQ_LEN); - capimsg_setu16(skb->data, 0, CAPI_DATA_B3_REQ_LEN); - capimsg_setu16(skb->data, 2, mp->ap->applid); - capimsg_setu8 (skb->data, 4, CAPI_DATA_B3); - capimsg_setu8 (skb->data, 5, CAPI_REQ); -- capimsg_setu16(skb->data, 6, atomic_inc_return(&mp->msgid)); -+ capimsg_setu16(skb->data, 6, atomic_inc_return_unchecked(&mp->msgid)); - capimsg_setu32(skb->data, 8, mp->ncci); /* NCCI */ - capimsg_setu32(skb->data, 12, (u32)(long)skb->data);/* Data32 */ - capimsg_setu16(skb->data, 16, len); /* Data length */ -diff --git a/drivers/isdn/hardware/avm/b1.c b/drivers/isdn/hardware/avm/b1.c -index 821f7ac..28d4030 100644 ---- a/drivers/isdn/hardware/avm/b1.c -+++ b/drivers/isdn/hardware/avm/b1.c -@@ -176,7 +176,7 @@ int b1_load_t4file(avmcard *card, capiloaddatapart *t4file) - } - if (left) { - if (t4file->user) { -- if (copy_from_user(buf, dp, left)) -+ if (left > sizeof buf || copy_from_user(buf, dp, left)) - return -EFAULT; - } else { - memcpy(buf, dp, left); -@@ -224,7 +224,7 @@ int b1_load_config(avmcard *card, capiloaddatapart *config) - } - if (left) { - if (config->user) { -- if (copy_from_user(buf, dp, left)) -+ if (left > sizeof buf || copy_from_user(buf, dp, left)) - return -EFAULT; - } else { - memcpy(buf, dp, left); -diff --git a/drivers/isdn/hardware/eicon/divasync.h b/drivers/isdn/hardware/eicon/divasync.h -index dd6b53a..19d9ee6 100644 ---- a/drivers/isdn/hardware/eicon/divasync.h -+++ b/drivers/isdn/hardware/eicon/divasync.h -@@ -146,7 +146,7 @@ typedef struct _diva_didd_add_adapter { - } diva_didd_add_adapter_t; - typedef struct _diva_didd_remove_adapter { - IDI_CALL p_request; --} diva_didd_remove_adapter_t; -+} __no_const diva_didd_remove_adapter_t; - typedef struct _diva_didd_read_adapter_array { - void *buffer; - dword length; -diff --git a/drivers/isdn/hardware/eicon/xdi_adapter.h b/drivers/isdn/hardware/eicon/xdi_adapter.h -index d303e65..28bcb7b 100644 ---- a/drivers/isdn/hardware/eicon/xdi_adapter.h -+++ b/drivers/isdn/hardware/eicon/xdi_adapter.h -@@ -44,7 +44,7 @@ typedef struct _xdi_mbox_t { - typedef struct _diva_os_idi_adapter_interface { - diva_init_card_proc_t cleanup_adapter_proc; - diva_cmd_card_proc_t cmd_proc; --} diva_os_idi_adapter_interface_t; -+} __no_const diva_os_idi_adapter_interface_t; - - typedef struct _diva_os_xdi_adapter { - struct list_head link; -diff --git a/drivers/isdn/icn/icn.c b/drivers/isdn/icn/icn.c -index e74df7c..03a03ba 100644 ---- a/drivers/isdn/icn/icn.c -+++ b/drivers/isdn/icn/icn.c -@@ -1045,7 +1045,7 @@ icn_writecmd(const u_char *buf, int len, int user, icn_card *card) - if (count > len) - count = len; - if (user) { -- if (copy_from_user(msg, buf, count)) -+ if (count > sizeof msg || copy_from_user(msg, buf, count)) - return -EFAULT; - } else - memcpy(msg, buf, count); -diff --git a/drivers/leds/leds-mc13783.c b/drivers/leds/leds-mc13783.c -index 8bc4915..4cc6a2e 100644 ---- a/drivers/leds/leds-mc13783.c -+++ b/drivers/leds/leds-mc13783.c -@@ -280,7 +280,7 @@ static int __devinit mc13783_led_probe(struct platform_device *pdev) - return -EINVAL; - } - -- led = kzalloc(sizeof(*led) * pdata->num_leds, GFP_KERNEL); -+ led = kcalloc(pdata->num_leds, sizeof(*led), GFP_KERNEL); - if (led == NULL) { - dev_err(&pdev->dev, "failed to alloc memory\n"); - return -ENOMEM; -diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c -index b5fdcb7..5b6c59f 100644 ---- a/drivers/lguest/core.c -+++ b/drivers/lguest/core.c -@@ -92,9 +92,17 @@ static __init int map_switcher(void) - * it's worked so far. The end address needs +1 because __get_vm_area - * allocates an extra guard page, so we need space for that. - */ -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE, -+ VM_ALLOC | VM_KERNEXEC, SWITCHER_ADDR, SWITCHER_ADDR -+ + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE); -+#else - switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE, - VM_ALLOC, SWITCHER_ADDR, SWITCHER_ADDR - + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE); -+#endif -+ - if (!switcher_vma) { - err = -ENOMEM; - printk("lguest: could not map switcher pages high\n"); -@@ -119,7 +127,7 @@ static __init int map_switcher(void) - * Now the Switcher is mapped at the right address, we can't fail! - * Copy in the compiled-in Switcher code (from x86/switcher_32.S). - */ -- memcpy(switcher_vma->addr, start_switcher_text, -+ memcpy(switcher_vma->addr, ktla_ktva(start_switcher_text), - end_switcher_text - start_switcher_text); - - printk(KERN_INFO "lguest: mapped switcher at %p\n", -diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c -index 3980903..ce25c5e 100644 ---- a/drivers/lguest/x86/core.c -+++ b/drivers/lguest/x86/core.c -@@ -59,7 +59,7 @@ static struct { - /* Offset from where switcher.S was compiled to where we've copied it */ - static unsigned long switcher_offset(void) - { -- return SWITCHER_ADDR - (unsigned long)start_switcher_text; -+ return SWITCHER_ADDR - (unsigned long)ktla_ktva(start_switcher_text); - } - - /* This cpu's struct lguest_pages. */ -@@ -100,7 +100,13 @@ static void copy_in_guest_info(struct lg_cpu *cpu, struct lguest_pages *pages) - * These copies are pretty cheap, so we do them unconditionally: */ - /* Save the current Host top-level page directory. - */ -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ pages->state.host_cr3 = read_cr3(); -+#else - pages->state.host_cr3 = __pa(current->mm->pgd); -+#endif -+ - /* - * Set up the Guest's page tables to see this CPU's pages (and no - * other CPU's pages). -@@ -472,7 +478,7 @@ void __init lguest_arch_host_init(void) - * compiled-in switcher code and the high-mapped copy we just made. - */ - for (i = 0; i < IDT_ENTRIES; i++) -- default_idt_entries[i] += switcher_offset(); -+ default_idt_entries[i] = ktla_ktva(default_idt_entries[i]) + switcher_offset(); - - /* - * Set up the Switcher's per-cpu areas. -@@ -555,7 +561,7 @@ void __init lguest_arch_host_init(void) - * it will be undisturbed when we switch. To change %cs and jump we - * need this structure to feed to Intel's "lcall" instruction. - */ -- lguest_entry.offset = (long)switch_to_guest + switcher_offset(); -+ lguest_entry.offset = (long)ktla_ktva(switch_to_guest) + switcher_offset(); - lguest_entry.segment = LGUEST_CS; - - /* -diff --git a/drivers/lguest/x86/switcher_32.S b/drivers/lguest/x86/switcher_32.S -index 40634b0..4f5855e 100644 ---- a/drivers/lguest/x86/switcher_32.S -+++ b/drivers/lguest/x86/switcher_32.S -@@ -87,6 +87,7 @@ - #include <asm/page.h> - #include <asm/segment.h> - #include <asm/lguest.h> -+#include <asm/processor-flags.h> - - // We mark the start of the code to copy - // It's placed in .text tho it's never run here -@@ -149,6 +150,13 @@ ENTRY(switch_to_guest) - // Changes type when we load it: damn Intel! - // For after we switch over our page tables - // That entry will be read-only: we'd crash. -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ mov %cr0, %edx -+ xor $X86_CR0_WP, %edx -+ mov %edx, %cr0 -+#endif -+ - movl $(GDT_ENTRY_TSS*8), %edx - ltr %dx - -@@ -157,9 +165,15 @@ ENTRY(switch_to_guest) - // Let's clear it again for our return. - // The GDT descriptor of the Host - // Points to the table after two "size" bytes -- movl (LGUEST_PAGES_host_gdt_desc+2)(%eax), %edx -+ movl (LGUEST_PAGES_host_gdt_desc+2)(%eax), %eax - // Clear "used" from type field (byte 5, bit 2) -- andb $0xFD, (GDT_ENTRY_TSS*8 + 5)(%edx) -+ andb $0xFD, (GDT_ENTRY_TSS*8 + 5)(%eax) -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ mov %cr0, %eax -+ xor $X86_CR0_WP, %eax -+ mov %eax, %cr0 -+#endif - - // Once our page table's switched, the Guest is live! - // The Host fades as we run this final step. -@@ -295,13 +309,12 @@ deliver_to_host: - // I consulted gcc, and it gave - // These instructions, which I gladly credit: - leal (%edx,%ebx,8), %eax -- movzwl (%eax),%edx -- movl 4(%eax), %eax -- xorw %ax, %ax -- orl %eax, %edx -+ movl 4(%eax), %edx -+ movw (%eax), %dx - // Now the address of the handler's in %edx - // We call it now: its "iret" drops us home. -- jmp *%edx -+ ljmp $__KERNEL_CS, $1f -+1: jmp *%edx - - // Every interrupt can come to us here - // But we must truly tell each apart. -diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c -index 20e5c2c..9e849a9 100644 ---- a/drivers/macintosh/macio_asic.c -+++ b/drivers/macintosh/macio_asic.c -@@ -748,7 +748,7 @@ static void __devexit macio_pci_remove(struct pci_dev* pdev) - * MacIO is matched against any Apple ID, it's probe() function - * will then decide wether it applies or not - */ --static const struct pci_device_id __devinitdata pci_ids [] = { { -+static const struct pci_device_id __devinitconst pci_ids [] = { { - .vendor = PCI_VENDOR_ID_APPLE, - .device = PCI_ANY_ID, - .subvendor = PCI_ANY_ID, -diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c -index 17e2b47..bcbeec4 100644 ---- a/drivers/md/bitmap.c -+++ b/drivers/md/bitmap.c -@@ -1823,7 +1823,7 @@ void bitmap_status(struct seq_file *seq, struct bitmap *bitmap) - chunk_kb ? "KB" : "B"); - if (bitmap->file) { - seq_printf(seq, ", file: "); -- seq_path(seq, &bitmap->file->f_path, " \t\n"); -+ seq_path(seq, &bitmap->file->f_path, " \t\n\\"); - } - - seq_printf(seq, "\n"); -diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c -index a1a3e6d..1918bfc 100644 ---- a/drivers/md/dm-ioctl.c -+++ b/drivers/md/dm-ioctl.c -@@ -1590,7 +1590,7 @@ static int validate_params(uint cmd, struct dm_ioctl *param) - cmd == DM_LIST_VERSIONS_CMD) - return 0; - -- if ((cmd == DM_DEV_CREATE_CMD)) { -+ if (cmd == DM_DEV_CREATE_CMD) { - if (!*param->name) { - DMWARN("name not supplied when creating device"); - return -EINVAL; -diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c -index d039de8..0cf5b87 100644 ---- a/drivers/md/dm-raid1.c -+++ b/drivers/md/dm-raid1.c -@@ -40,7 +40,7 @@ enum dm_raid1_error { - - struct mirror { - struct mirror_set *ms; -- atomic_t error_count; -+ atomic_unchecked_t error_count; - unsigned long error_type; - struct dm_dev *dev; - sector_t offset; -@@ -185,7 +185,7 @@ static struct mirror *get_valid_mirror(struct mirror_set *ms) - struct mirror *m; - - for (m = ms->mirror; m < ms->mirror + ms->nr_mirrors; m++) -- if (!atomic_read(&m->error_count)) -+ if (!atomic_read_unchecked(&m->error_count)) - return m; - - return NULL; -@@ -217,7 +217,7 @@ static void fail_mirror(struct mirror *m, enum dm_raid1_error error_type) - * simple way to tell if a device has encountered - * errors. - */ -- atomic_inc(&m->error_count); -+ atomic_inc_unchecked(&m->error_count); - - if (test_and_set_bit(error_type, &m->error_type)) - return; -@@ -408,7 +408,7 @@ static struct mirror *choose_mirror(struct mirror_set *ms, sector_t sector) - struct mirror *m = get_default_mirror(ms); - - do { -- if (likely(!atomic_read(&m->error_count))) -+ if (likely(!atomic_read_unchecked(&m->error_count))) - return m; - - if (m-- == ms->mirror) -@@ -422,7 +422,7 @@ static int default_ok(struct mirror *m) - { - struct mirror *default_mirror = get_default_mirror(m->ms); - -- return !atomic_read(&default_mirror->error_count); -+ return !atomic_read_unchecked(&default_mirror->error_count); - } - - static int mirror_available(struct mirror_set *ms, struct bio *bio) -@@ -559,7 +559,7 @@ static void do_reads(struct mirror_set *ms, struct bio_list *reads) - */ - if (likely(region_in_sync(ms, region, 1))) - m = choose_mirror(ms, bio->bi_sector); -- else if (m && atomic_read(&m->error_count)) -+ else if (m && atomic_read_unchecked(&m->error_count)) - m = NULL; - - if (likely(m)) -@@ -938,7 +938,7 @@ static int get_mirror(struct mirror_set *ms, struct dm_target *ti, - } - - ms->mirror[mirror].ms = ms; -- atomic_set(&(ms->mirror[mirror].error_count), 0); -+ atomic_set_unchecked(&(ms->mirror[mirror].error_count), 0); - ms->mirror[mirror].error_type = 0; - ms->mirror[mirror].offset = offset; - -@@ -1351,7 +1351,7 @@ static void mirror_resume(struct dm_target *ti) - */ - static char device_status_char(struct mirror *m) - { -- if (!atomic_read(&(m->error_count))) -+ if (!atomic_read_unchecked(&(m->error_count))) - return 'A'; - - return (test_bit(DM_RAID1_FLUSH_ERROR, &(m->error_type))) ? 'F' : -diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c -index 35c94ff..20d4c17 100644 ---- a/drivers/md/dm-stripe.c -+++ b/drivers/md/dm-stripe.c -@@ -20,7 +20,7 @@ struct stripe { - struct dm_dev *dev; - sector_t physical_start; - -- atomic_t error_count; -+ atomic_unchecked_t error_count; - }; - - struct stripe_c { -@@ -193,7 +193,7 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv) - kfree(sc); - return r; - } -- atomic_set(&(sc->stripe[i].error_count), 0); -+ atomic_set_unchecked(&(sc->stripe[i].error_count), 0); - } - - ti->private = sc; -@@ -315,7 +315,7 @@ static int stripe_status(struct dm_target *ti, - DMEMIT("%d ", sc->stripes); - for (i = 0; i < sc->stripes; i++) { - DMEMIT("%s ", sc->stripe[i].dev->name); -- buffer[i] = atomic_read(&(sc->stripe[i].error_count)) ? -+ buffer[i] = atomic_read_unchecked(&(sc->stripe[i].error_count)) ? - 'D' : 'A'; - } - buffer[i] = '\0'; -@@ -362,8 +362,8 @@ static int stripe_end_io(struct dm_target *ti, struct bio *bio, - */ - for (i = 0; i < sc->stripes; i++) - if (!strcmp(sc->stripe[i].dev->name, major_minor)) { -- atomic_inc(&(sc->stripe[i].error_count)); -- if (atomic_read(&(sc->stripe[i].error_count)) < -+ atomic_inc_unchecked(&(sc->stripe[i].error_count)); -+ if (atomic_read_unchecked(&(sc->stripe[i].error_count)) < - DM_IO_ERROR_THRESHOLD) - schedule_work(&sc->trigger_event); - } -diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c -index 2e227fb..44ead1f 100644 ---- a/drivers/md/dm-table.c -+++ b/drivers/md/dm-table.c -@@ -390,7 +390,7 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev, - if (!dev_size) - return 0; - -- if ((start >= dev_size) || (start + len > dev_size)) { -+ if ((start >= dev_size) || (len > dev_size - start)) { - DMWARN("%s: %s too small for target: " - "start=%llu, len=%llu, dev_size=%llu", - dm_device_name(ti->table->md), bdevname(bdev, b), -diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c -index 737d388..811ad5a 100644 ---- a/drivers/md/dm-thin-metadata.c -+++ b/drivers/md/dm-thin-metadata.c -@@ -432,7 +432,7 @@ static int init_pmd(struct dm_pool_metadata *pmd, - - pmd->info.tm = tm; - pmd->info.levels = 2; -- pmd->info.value_type.context = pmd->data_sm; -+ pmd->info.value_type.context = (dm_space_map_no_const *)pmd->data_sm; - pmd->info.value_type.size = sizeof(__le64); - pmd->info.value_type.inc = data_block_inc; - pmd->info.value_type.dec = data_block_dec; -@@ -451,7 +451,7 @@ static int init_pmd(struct dm_pool_metadata *pmd, - - pmd->bl_info.tm = tm; - pmd->bl_info.levels = 1; -- pmd->bl_info.value_type.context = pmd->data_sm; -+ pmd->bl_info.value_type.context = (dm_space_map_no_const *)pmd->data_sm; - pmd->bl_info.value_type.size = sizeof(__le64); - pmd->bl_info.value_type.inc = data_block_inc; - pmd->bl_info.value_type.dec = data_block_dec; -diff --git a/drivers/md/dm.c b/drivers/md/dm.c -index e24143c..ce2f21a1 100644 ---- a/drivers/md/dm.c -+++ b/drivers/md/dm.c -@@ -176,9 +176,9 @@ struct mapped_device { - /* - * Event handling. - */ -- atomic_t event_nr; -+ atomic_unchecked_t event_nr; - wait_queue_head_t eventq; -- atomic_t uevent_seq; -+ atomic_unchecked_t uevent_seq; - struct list_head uevent_list; - spinlock_t uevent_lock; /* Protect access to uevent_list */ - -@@ -1845,8 +1845,8 @@ static struct mapped_device *alloc_dev(int minor) - rwlock_init(&md->map_lock); - atomic_set(&md->holders, 1); - atomic_set(&md->open_count, 0); -- atomic_set(&md->event_nr, 0); -- atomic_set(&md->uevent_seq, 0); -+ atomic_set_unchecked(&md->event_nr, 0); -+ atomic_set_unchecked(&md->uevent_seq, 0); - INIT_LIST_HEAD(&md->uevent_list); - spin_lock_init(&md->uevent_lock); - -@@ -1980,7 +1980,7 @@ static void event_callback(void *context) - - dm_send_uevents(&uevents, &disk_to_dev(md->disk)->kobj); - -- atomic_inc(&md->event_nr); -+ atomic_inc_unchecked(&md->event_nr); - wake_up(&md->eventq); - } - -@@ -2622,18 +2622,18 @@ int dm_kobject_uevent(struct mapped_device *md, enum kobject_action action, - - uint32_t dm_next_uevent_seq(struct mapped_device *md) - { -- return atomic_add_return(1, &md->uevent_seq); -+ return atomic_add_return_unchecked(1, &md->uevent_seq); - } - - uint32_t dm_get_event_nr(struct mapped_device *md) - { -- return atomic_read(&md->event_nr); -+ return atomic_read_unchecked(&md->event_nr); - } - - int dm_wait_event(struct mapped_device *md, int event_nr) - { - return wait_event_interruptible(md->eventq, -- (event_nr != atomic_read(&md->event_nr))); -+ (event_nr != atomic_read_unchecked(&md->event_nr))); - } - - void dm_uevent_add(struct mapped_device *md, struct list_head *elist) -diff --git a/drivers/md/md.c b/drivers/md/md.c -index 2b30ffd..bf789ce 100644 ---- a/drivers/md/md.c -+++ b/drivers/md/md.c -@@ -277,10 +277,10 @@ EXPORT_SYMBOL_GPL(md_trim_bio); - * start build, activate spare - */ - static DECLARE_WAIT_QUEUE_HEAD(md_event_waiters); --static atomic_t md_event_count; -+static atomic_unchecked_t md_event_count; - void md_new_event(struct mddev *mddev) - { -- atomic_inc(&md_event_count); -+ atomic_inc_unchecked(&md_event_count); - wake_up(&md_event_waiters); - } - EXPORT_SYMBOL_GPL(md_new_event); -@@ -290,7 +290,7 @@ EXPORT_SYMBOL_GPL(md_new_event); - */ - static void md_new_event_inintr(struct mddev *mddev) - { -- atomic_inc(&md_event_count); -+ atomic_inc_unchecked(&md_event_count); - wake_up(&md_event_waiters); - } - -@@ -1526,7 +1526,7 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_ - - rdev->preferred_minor = 0xffff; - rdev->data_offset = le64_to_cpu(sb->data_offset); -- atomic_set(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read)); -+ atomic_set_unchecked(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read)); - - rdev->sb_size = le32_to_cpu(sb->max_dev) * 2 + 256; - bmask = queue_logical_block_size(rdev->bdev->bd_disk->queue)-1; -@@ -1745,7 +1745,7 @@ static void super_1_sync(struct mddev *mddev, struct md_rdev *rdev) - else - sb->resync_offset = cpu_to_le64(0); - -- sb->cnt_corrected_read = cpu_to_le32(atomic_read(&rdev->corrected_errors)); -+ sb->cnt_corrected_read = cpu_to_le32(atomic_read_unchecked(&rdev->corrected_errors)); - - sb->raid_disks = cpu_to_le32(mddev->raid_disks); - sb->size = cpu_to_le64(mddev->dev_sectors); -@@ -2691,7 +2691,7 @@ __ATTR(state, S_IRUGO|S_IWUSR, state_show, state_store); - static ssize_t - errors_show(struct md_rdev *rdev, char *page) - { -- return sprintf(page, "%d\n", atomic_read(&rdev->corrected_errors)); -+ return sprintf(page, "%d\n", atomic_read_unchecked(&rdev->corrected_errors)); - } - - static ssize_t -@@ -2700,7 +2700,7 @@ errors_store(struct md_rdev *rdev, const char *buf, size_t len) - char *e; - unsigned long n = simple_strtoul(buf, &e, 10); - if (*buf && (*e == 0 || *e == '\n')) { -- atomic_set(&rdev->corrected_errors, n); -+ atomic_set_unchecked(&rdev->corrected_errors, n); - return len; - } - return -EINVAL; -@@ -3086,8 +3086,8 @@ int md_rdev_init(struct md_rdev *rdev) - rdev->sb_loaded = 0; - rdev->bb_page = NULL; - atomic_set(&rdev->nr_pending, 0); -- atomic_set(&rdev->read_errors, 0); -- atomic_set(&rdev->corrected_errors, 0); -+ atomic_set_unchecked(&rdev->read_errors, 0); -+ atomic_set_unchecked(&rdev->corrected_errors, 0); - - INIT_LIST_HEAD(&rdev->same_set); - init_waitqueue_head(&rdev->blocked_wait); -@@ -6738,7 +6738,7 @@ static int md_seq_show(struct seq_file *seq, void *v) - - spin_unlock(&pers_lock); - seq_printf(seq, "\n"); -- seq->poll_event = atomic_read(&md_event_count); -+ seq->poll_event = atomic_read_unchecked(&md_event_count); - return 0; - } - if (v == (void*)2) { -@@ -6841,7 +6841,7 @@ static int md_seq_open(struct inode *inode, struct file *file) - return error; - - seq = file->private_data; -- seq->poll_event = atomic_read(&md_event_count); -+ seq->poll_event = atomic_read_unchecked(&md_event_count); - return error; - } - -@@ -6855,7 +6855,7 @@ static unsigned int mdstat_poll(struct file *filp, poll_table *wait) - /* always allow read */ - mask = POLLIN | POLLRDNORM; - -- if (seq->poll_event != atomic_read(&md_event_count)) -+ if (seq->poll_event != atomic_read_unchecked(&md_event_count)) - mask |= POLLERR | POLLPRI; - return mask; - } -@@ -6899,7 +6899,7 @@ static int is_mddev_idle(struct mddev *mddev, int init) - struct gendisk *disk = rdev->bdev->bd_contains->bd_disk; - curr_events = (int)part_stat_read(&disk->part0, sectors[0]) + - (int)part_stat_read(&disk->part0, sectors[1]) - -- atomic_read(&disk->sync_io); -+ atomic_read_unchecked(&disk->sync_io); - /* sync IO will cause sync_io to increase before the disk_stats - * as sync_io is counted when a request starts, and - * disk_stats is counted when it completes. -diff --git a/drivers/md/md.h b/drivers/md/md.h -index 1c2063c..9639970 100644 ---- a/drivers/md/md.h -+++ b/drivers/md/md.h -@@ -93,13 +93,13 @@ struct md_rdev { - * only maintained for arrays that - * support hot removal - */ -- atomic_t read_errors; /* number of consecutive read errors that -+ atomic_unchecked_t read_errors; /* number of consecutive read errors that - * we have tried to ignore. - */ - struct timespec last_read_error; /* monotonic time since our - * last read error - */ -- atomic_t corrected_errors; /* number of corrected read errors, -+ atomic_unchecked_t corrected_errors; /* number of corrected read errors, - * for reporting to userspace and storing - * in superblock. - */ -@@ -429,7 +429,7 @@ static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev) - - static inline void md_sync_acct(struct block_device *bdev, unsigned long nr_sectors) - { -- atomic_add(nr_sectors, &bdev->bd_contains->bd_disk->sync_io); -+ atomic_add_unchecked(nr_sectors, &bdev->bd_contains->bd_disk->sync_io); - } - - struct md_personality -diff --git a/drivers/md/persistent-data/dm-space-map-checker.c b/drivers/md/persistent-data/dm-space-map-checker.c -index 50ed53b..4f29d7d 100644 ---- a/drivers/md/persistent-data/dm-space-map-checker.c -+++ b/drivers/md/persistent-data/dm-space-map-checker.c -@@ -159,7 +159,7 @@ static void ca_destroy(struct count_array *ca) - /*----------------------------------------------------------------*/ - - struct sm_checker { -- struct dm_space_map sm; -+ dm_space_map_no_const sm; - - struct count_array old_counts; - struct count_array counts; -diff --git a/drivers/md/persistent-data/dm-space-map-disk.c b/drivers/md/persistent-data/dm-space-map-disk.c -index fc469ba..2d91555 100644 ---- a/drivers/md/persistent-data/dm-space-map-disk.c -+++ b/drivers/md/persistent-data/dm-space-map-disk.c -@@ -23,7 +23,7 @@ - * Space map interface. - */ - struct sm_disk { -- struct dm_space_map sm; -+ dm_space_map_no_const sm; - - struct ll_disk ll; - struct ll_disk old_ll; -diff --git a/drivers/md/persistent-data/dm-space-map-metadata.c b/drivers/md/persistent-data/dm-space-map-metadata.c -index e89ae5e..062e4c2 100644 ---- a/drivers/md/persistent-data/dm-space-map-metadata.c -+++ b/drivers/md/persistent-data/dm-space-map-metadata.c -@@ -43,7 +43,7 @@ struct block_op { - }; - - struct sm_metadata { -- struct dm_space_map sm; -+ dm_space_map_no_const sm; - - struct ll_disk ll; - struct ll_disk old_ll; -diff --git a/drivers/md/persistent-data/dm-space-map.h b/drivers/md/persistent-data/dm-space-map.h -index 1cbfc6b..56e1dbb 100644 ---- a/drivers/md/persistent-data/dm-space-map.h -+++ b/drivers/md/persistent-data/dm-space-map.h -@@ -60,6 +60,7 @@ struct dm_space_map { - int (*root_size)(struct dm_space_map *sm, size_t *result); - int (*copy_root)(struct dm_space_map *sm, void *copy_to_here_le, size_t len); - }; -+typedef struct dm_space_map __no_const dm_space_map_no_const; - - /*----------------------------------------------------------------*/ - -diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c -index d7e9577..faa512f2 100644 ---- a/drivers/md/raid1.c -+++ b/drivers/md/raid1.c -@@ -1688,7 +1688,7 @@ static int fix_sync_read_error(struct r1bio *r1_bio) - if (r1_sync_page_io(rdev, sect, s, - bio->bi_io_vec[idx].bv_page, - READ) != 0) -- atomic_add(s, &rdev->corrected_errors); -+ atomic_add_unchecked(s, &rdev->corrected_errors); - } - sectors -= s; - sect += s; -@@ -1902,7 +1902,7 @@ static void fix_read_error(struct r1conf *conf, int read_disk, - test_bit(In_sync, &rdev->flags)) { - if (r1_sync_page_io(rdev, sect, s, - conf->tmppage, READ)) { -- atomic_add(s, &rdev->corrected_errors); -+ atomic_add_unchecked(s, &rdev->corrected_errors); - printk(KERN_INFO - "md/raid1:%s: read error corrected " - "(%d sectors at %llu on %s)\n", -diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c -index d037adb..ed17dc9 100644 ---- a/drivers/md/raid10.c -+++ b/drivers/md/raid10.c -@@ -1684,7 +1684,7 @@ static void end_sync_read(struct bio *bio, int error) - /* The write handler will notice the lack of - * R10BIO_Uptodate and record any errors etc - */ -- atomic_add(r10_bio->sectors, -+ atomic_add_unchecked(r10_bio->sectors, - &conf->mirrors[d].rdev->corrected_errors); - - /* for reconstruct, we always reschedule after a read. -@@ -2033,7 +2033,7 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev) - { - struct timespec cur_time_mon; - unsigned long hours_since_last; -- unsigned int read_errors = atomic_read(&rdev->read_errors); -+ unsigned int read_errors = atomic_read_unchecked(&rdev->read_errors); - - ktime_get_ts(&cur_time_mon); - -@@ -2055,9 +2055,9 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev) - * overflowing the shift of read_errors by hours_since_last. - */ - if (hours_since_last >= 8 * sizeof(read_errors)) -- atomic_set(&rdev->read_errors, 0); -+ atomic_set_unchecked(&rdev->read_errors, 0); - else -- atomic_set(&rdev->read_errors, read_errors >> hours_since_last); -+ atomic_set_unchecked(&rdev->read_errors, read_errors >> hours_since_last); - } - - static int r10_sync_page_io(struct md_rdev *rdev, sector_t sector, -@@ -2111,8 +2111,8 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10 - return; - - check_decay_read_errors(mddev, rdev); -- atomic_inc(&rdev->read_errors); -- if (atomic_read(&rdev->read_errors) > max_read_errors) { -+ atomic_inc_unchecked(&rdev->read_errors); -+ if (atomic_read_unchecked(&rdev->read_errors) > max_read_errors) { - char b[BDEVNAME_SIZE]; - bdevname(rdev->bdev, b); - -@@ -2120,7 +2120,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10 - "md/raid10:%s: %s: Raid device exceeded " - "read_error threshold [cur %d:max %d]\n", - mdname(mddev), b, -- atomic_read(&rdev->read_errors), max_read_errors); -+ atomic_read_unchecked(&rdev->read_errors), max_read_errors); - printk(KERN_NOTICE - "md/raid10:%s: %s: Failing raid device\n", - mdname(mddev), b); -@@ -2271,7 +2271,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10 - (unsigned long long)( - sect + rdev->data_offset), - bdevname(rdev->bdev, b)); -- atomic_add(s, &rdev->corrected_errors); -+ atomic_add_unchecked(s, &rdev->corrected_errors); - } - - rdev_dec_pending(rdev, mddev); -diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c -index f351422..85c01bb 100644 ---- a/drivers/md/raid5.c -+++ b/drivers/md/raid5.c -@@ -1686,18 +1686,18 @@ static void raid5_end_read_request(struct bio * bi, int error) - (unsigned long long)(sh->sector - + rdev->data_offset), - bdevname(rdev->bdev, b)); -- atomic_add(STRIPE_SECTORS, &rdev->corrected_errors); -+ atomic_add_unchecked(STRIPE_SECTORS, &rdev->corrected_errors); - clear_bit(R5_ReadError, &sh->dev[i].flags); - clear_bit(R5_ReWrite, &sh->dev[i].flags); - } -- if (atomic_read(&rdev->read_errors)) -- atomic_set(&rdev->read_errors, 0); -+ if (atomic_read_unchecked(&rdev->read_errors)) -+ atomic_set_unchecked(&rdev->read_errors, 0); - } else { - const char *bdn = bdevname(rdev->bdev, b); - int retry = 0; - - clear_bit(R5_UPTODATE, &sh->dev[i].flags); -- atomic_inc(&rdev->read_errors); -+ atomic_inc_unchecked(&rdev->read_errors); - if (test_bit(R5_ReadRepl, &sh->dev[i].flags)) - printk_ratelimited( - KERN_WARNING -@@ -1726,7 +1726,7 @@ static void raid5_end_read_request(struct bio * bi, int error) - (unsigned long long)(sh->sector - + rdev->data_offset), - bdn); -- else if (atomic_read(&rdev->read_errors) -+ else if (atomic_read_unchecked(&rdev->read_errors) - > conf->max_nr_stripes) - printk(KERN_WARNING - "md/raid:%s: Too many read errors, failing device %s.\n", -diff --git a/drivers/media/dvb/ddbridge/ddbridge-core.c b/drivers/media/dvb/ddbridge/ddbridge-core.c -index d88c4aa..17c80b1 100644 ---- a/drivers/media/dvb/ddbridge/ddbridge-core.c -+++ b/drivers/media/dvb/ddbridge/ddbridge-core.c -@@ -1679,7 +1679,7 @@ static struct ddb_info ddb_v6 = { - .subvendor = _subvend, .subdevice = _subdev, \ - .driver_data = (unsigned long)&_driverdata } - --static const struct pci_device_id ddb_id_tbl[] __devinitdata = { -+static const struct pci_device_id ddb_id_tbl[] __devinitconst = { - DDB_ID(DDVID, 0x0002, DDVID, 0x0001, ddb_octopus), - DDB_ID(DDVID, 0x0003, DDVID, 0x0001, ddb_octopus), - DDB_ID(DDVID, 0x0003, DDVID, 0x0002, ddb_octopus_le), -diff --git a/drivers/media/dvb/dvb-core/dvb_demux.h b/drivers/media/dvb/dvb-core/dvb_demux.h -index a7d876f..8c21b61 100644 ---- a/drivers/media/dvb/dvb-core/dvb_demux.h -+++ b/drivers/media/dvb/dvb-core/dvb_demux.h -@@ -73,7 +73,7 @@ struct dvb_demux_feed { - union { - dmx_ts_cb ts; - dmx_section_cb sec; -- } cb; -+ } __no_const cb; - - struct dvb_demux *demux; - void *priv; -diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c -index 00a6732..70a682e 100644 ---- a/drivers/media/dvb/dvb-core/dvbdev.c -+++ b/drivers/media/dvb/dvb-core/dvbdev.c -@@ -192,7 +192,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev, - const struct dvb_device *template, void *priv, int type) - { - struct dvb_device *dvbdev; -- struct file_operations *dvbdevfops; -+ file_operations_no_const *dvbdevfops; - struct device *clsdev; - int minor; - int id; -diff --git a/drivers/media/dvb/dvb-usb/cxusb.c b/drivers/media/dvb/dvb-usb/cxusb.c -index 3940bb0..fb3952a 100644 ---- a/drivers/media/dvb/dvb-usb/cxusb.c -+++ b/drivers/media/dvb/dvb-usb/cxusb.c -@@ -1068,7 +1068,7 @@ static struct dib0070_config dib7070p_dib0070_config = { - - struct dib0700_adapter_state { - int (*set_param_save) (struct dvb_frontend *); --}; -+} __no_const; - - static int dib7070_set_param_override(struct dvb_frontend *fe) - { -diff --git a/drivers/media/dvb/dvb-usb/dw2102.c b/drivers/media/dvb/dvb-usb/dw2102.c -index 451c5a7..649f711 100644 ---- a/drivers/media/dvb/dvb-usb/dw2102.c -+++ b/drivers/media/dvb/dvb-usb/dw2102.c -@@ -95,7 +95,7 @@ struct su3000_state { - - struct s6x0_state { - int (*old_set_voltage)(struct dvb_frontend *f, fe_sec_voltage_t v); --}; -+} __no_const; - - /* debug */ - static int dvb_usb_dw2102_debug; -diff --git a/drivers/media/dvb/frontends/dib3000.h b/drivers/media/dvb/frontends/dib3000.h -index 404f63a..4796533 100644 ---- a/drivers/media/dvb/frontends/dib3000.h -+++ b/drivers/media/dvb/frontends/dib3000.h -@@ -39,7 +39,7 @@ struct dib_fe_xfer_ops - int (*fifo_ctrl)(struct dvb_frontend *fe, int onoff); - int (*pid_ctrl)(struct dvb_frontend *fe, int index, int pid, int onoff); - int (*tuner_pass_ctrl)(struct dvb_frontend *fe, int onoff, u8 pll_ctrl); --}; -+} __no_const; - - #if defined(CONFIG_DVB_DIB3000MB) || (defined(CONFIG_DVB_DIB3000MB_MODULE) && defined(MODULE)) - extern struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config, -diff --git a/drivers/media/dvb/ngene/ngene-cards.c b/drivers/media/dvb/ngene/ngene-cards.c -index 7539a5d..06531a6 100644 ---- a/drivers/media/dvb/ngene/ngene-cards.c -+++ b/drivers/media/dvb/ngene/ngene-cards.c -@@ -478,7 +478,7 @@ static struct ngene_info ngene_info_m780 = { - - /****************************************************************************/ - --static const struct pci_device_id ngene_id_tbl[] __devinitdata = { -+static const struct pci_device_id ngene_id_tbl[] __devinitconst = { - NGENE_ID(0x18c3, 0xabc3, ngene_info_cineS2), - NGENE_ID(0x18c3, 0xabc4, ngene_info_cineS2), - NGENE_ID(0x18c3, 0xdb01, ngene_info_satixS2), -diff --git a/drivers/media/radio/radio-cadet.c b/drivers/media/radio/radio-cadet.c -index 16a089f..1661b11 100644 ---- a/drivers/media/radio/radio-cadet.c -+++ b/drivers/media/radio/radio-cadet.c -@@ -326,6 +326,8 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo - unsigned char readbuf[RDS_BUFFER]; - int i = 0; - -+ if (count > RDS_BUFFER) -+ return -EFAULT; - mutex_lock(&dev->lock); - if (dev->rdsstat == 0) { - dev->rdsstat = 1; -@@ -347,7 +349,7 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo - readbuf[i++] = dev->rdsbuf[dev->rdsout++]; - mutex_unlock(&dev->lock); - -- if (copy_to_user(data, readbuf, i)) -+ if (i > sizeof(readbuf) || copy_to_user(data, readbuf, i)) - return -EFAULT; - return i; - } -diff --git a/drivers/media/video/au0828/au0828.h b/drivers/media/video/au0828/au0828.h -index 9cde353..8c6a1c3 100644 ---- a/drivers/media/video/au0828/au0828.h -+++ b/drivers/media/video/au0828/au0828.h -@@ -191,7 +191,7 @@ struct au0828_dev { - - /* I2C */ - struct i2c_adapter i2c_adap; -- struct i2c_algorithm i2c_algo; -+ i2c_algorithm_no_const i2c_algo; - struct i2c_client i2c_client; - u32 i2c_rc; - -diff --git a/drivers/media/video/cx88/cx88-alsa.c b/drivers/media/video/cx88/cx88-alsa.c -index 04bf662..e0ac026 100644 ---- a/drivers/media/video/cx88/cx88-alsa.c -+++ b/drivers/media/video/cx88/cx88-alsa.c -@@ -766,7 +766,7 @@ static struct snd_kcontrol_new snd_cx88_alc_switch = { - * Only boards with eeprom and byte 1 at eeprom=1 have it - */ - --static const struct pci_device_id const cx88_audio_pci_tbl[] __devinitdata = { -+static const struct pci_device_id const cx88_audio_pci_tbl[] __devinitconst = { - {0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, - {0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, - {0, } -diff --git a/drivers/media/video/omap/omap_vout.c b/drivers/media/video/omap/omap_vout.c -index 88cf9d9..bbc4b2c 100644 ---- a/drivers/media/video/omap/omap_vout.c -+++ b/drivers/media/video/omap/omap_vout.c -@@ -64,7 +64,6 @@ enum omap_vout_channels { - OMAP_VIDEO2, - }; - --static struct videobuf_queue_ops video_vbq_ops; - /* Variables configurable through module params*/ - static u32 video1_numbuffers = 3; - static u32 video2_numbuffers = 3; -@@ -1000,6 +999,12 @@ static int omap_vout_open(struct file *file) - { - struct videobuf_queue *q; - struct omap_vout_device *vout = NULL; -+ static struct videobuf_queue_ops video_vbq_ops = { -+ .buf_setup = omap_vout_buffer_setup, -+ .buf_prepare = omap_vout_buffer_prepare, -+ .buf_release = omap_vout_buffer_release, -+ .buf_queue = omap_vout_buffer_queue, -+ }; - - vout = video_drvdata(file); - v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__); -@@ -1017,10 +1022,6 @@ static int omap_vout_open(struct file *file) - vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; - - q = &vout->vbq; -- video_vbq_ops.buf_setup = omap_vout_buffer_setup; -- video_vbq_ops.buf_prepare = omap_vout_buffer_prepare; -- video_vbq_ops.buf_release = omap_vout_buffer_release; -- video_vbq_ops.buf_queue = omap_vout_buffer_queue; - spin_lock_init(&vout->vbq_lock); - - videobuf_queue_dma_contig_init(q, &video_vbq_ops, q->dev, -diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h -index 305e6aa..0143317 100644 ---- a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h -+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h -@@ -196,7 +196,7 @@ struct pvr2_hdw { - - /* I2C stuff */ - struct i2c_adapter i2c_adap; -- struct i2c_algorithm i2c_algo; -+ i2c_algorithm_no_const i2c_algo; - pvr2_i2c_func i2c_func[PVR2_I2C_FUNC_CNT]; - int i2c_cx25840_hack_state; - int i2c_linked; -diff --git a/drivers/media/video/timblogiw.c b/drivers/media/video/timblogiw.c -index 02194c0..091733b 100644 ---- a/drivers/media/video/timblogiw.c -+++ b/drivers/media/video/timblogiw.c -@@ -745,7 +745,7 @@ static int timblogiw_mmap(struct file *file, struct vm_area_struct *vma) - - /* Platform device functions */ - --static __devinitconst struct v4l2_ioctl_ops timblogiw_ioctl_ops = { -+static __devinitconst v4l2_ioctl_ops_no_const timblogiw_ioctl_ops = { - .vidioc_querycap = timblogiw_querycap, - .vidioc_enum_fmt_vid_cap = timblogiw_enum_fmt, - .vidioc_g_fmt_vid_cap = timblogiw_g_fmt, -@@ -767,7 +767,7 @@ static __devinitconst struct v4l2_ioctl_ops timblogiw_ioctl_ops = { - .vidioc_enum_framesizes = timblogiw_enum_framesizes, - }; - --static __devinitconst struct v4l2_file_operations timblogiw_fops = { -+static __devinitconst v4l2_file_operations_no_const timblogiw_fops = { - .owner = THIS_MODULE, - .open = timblogiw_open, - .release = timblogiw_close, -diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c -index a5c591f..db692a3 100644 ---- a/drivers/message/fusion/mptbase.c -+++ b/drivers/message/fusion/mptbase.c -@@ -6754,8 +6754,13 @@ static int mpt_iocinfo_proc_show(struct seq_file *m, void *v) - seq_printf(m, " MaxChainDepth = 0x%02x frames\n", ioc->facts.MaxChainDepth); - seq_printf(m, " MinBlockSize = 0x%02x bytes\n", 4*ioc->facts.BlockSize); - -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ seq_printf(m, " RequestFrames @ 0x%p (Dma @ 0x%p)\n", NULL, NULL); -+#else - seq_printf(m, " RequestFrames @ 0x%p (Dma @ 0x%p)\n", - (void *)ioc->req_frames, (void *)(ulong)ioc->req_frames_dma); -+#endif -+ - /* - * Rounding UP to nearest 4-kB boundary here... - */ -diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c -index 551262e..7551198 100644 ---- a/drivers/message/fusion/mptsas.c -+++ b/drivers/message/fusion/mptsas.c -@@ -446,6 +446,23 @@ mptsas_is_end_device(struct mptsas_devinfo * attached) - return 0; - } - -+static inline void -+mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy) -+{ -+ if (phy_info->port_details) { -+ phy_info->port_details->rphy = rphy; -+ dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n", -+ ioc->name, rphy)); -+ } -+ -+ if (rphy) { -+ dsaswideprintk(ioc, dev_printk(KERN_DEBUG, -+ &rphy->dev, MYIOC_s_FMT "add:", ioc->name)); -+ dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n", -+ ioc->name, rphy, rphy->dev.release)); -+ } -+} -+ - /* no mutex */ - static void - mptsas_port_delete(MPT_ADAPTER *ioc, struct mptsas_portinfo_details * port_details) -@@ -484,23 +501,6 @@ mptsas_get_rphy(struct mptsas_phyinfo *phy_info) - return NULL; - } - --static inline void --mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy) --{ -- if (phy_info->port_details) { -- phy_info->port_details->rphy = rphy; -- dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n", -- ioc->name, rphy)); -- } -- -- if (rphy) { -- dsaswideprintk(ioc, dev_printk(KERN_DEBUG, -- &rphy->dev, MYIOC_s_FMT "add:", ioc->name)); -- dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n", -- ioc->name, rphy, rphy->dev.release)); -- } --} -- - static inline struct sas_port * - mptsas_get_port(struct mptsas_phyinfo *phy_info) - { -diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c -index 0c3ced7..1fe34ec 100644 ---- a/drivers/message/fusion/mptscsih.c -+++ b/drivers/message/fusion/mptscsih.c -@@ -1270,15 +1270,16 @@ mptscsih_info(struct Scsi_Host *SChost) - - h = shost_priv(SChost); - -- if (h) { -- if (h->info_kbuf == NULL) -- if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL) -- return h->info_kbuf; -- h->info_kbuf[0] = '\0'; -+ if (!h) -+ return NULL; - -- mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0); -- h->info_kbuf[size-1] = '\0'; -- } -+ if (h->info_kbuf == NULL) -+ if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL) -+ return h->info_kbuf; -+ h->info_kbuf[0] = '\0'; -+ -+ mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0); -+ h->info_kbuf[size-1] = '\0'; - - return h->info_kbuf; - } -diff --git a/drivers/message/i2o/i2o_proc.c b/drivers/message/i2o/i2o_proc.c -index 6d115c7..58ff7fd 100644 ---- a/drivers/message/i2o/i2o_proc.c -+++ b/drivers/message/i2o/i2o_proc.c -@@ -255,13 +255,6 @@ static char *scsi_devices[] = { - "Array Controller Device" - }; - --static char *chtostr(u8 * chars, int n) --{ -- char tmp[256]; -- tmp[0] = 0; -- return strncat(tmp, (char *)chars, n); --} -- - static int i2o_report_query_status(struct seq_file *seq, int block_status, - char *group) - { -@@ -838,8 +831,7 @@ static int i2o_seq_show_ddm_table(struct seq_file *seq, void *v) - - seq_printf(seq, "%-#7x", ddm_table.i2o_vendor_id); - seq_printf(seq, "%-#8x", ddm_table.module_id); -- seq_printf(seq, "%-29s", -- chtostr(ddm_table.module_name_version, 28)); -+ seq_printf(seq, "%-.28s", ddm_table.module_name_version); - seq_printf(seq, "%9d ", ddm_table.data_size); - seq_printf(seq, "%8d", ddm_table.code_size); - -@@ -940,8 +932,8 @@ static int i2o_seq_show_drivers_stored(struct seq_file *seq, void *v) - - seq_printf(seq, "%-#7x", dst->i2o_vendor_id); - seq_printf(seq, "%-#8x", dst->module_id); -- seq_printf(seq, "%-29s", chtostr(dst->module_name_version, 28)); -- seq_printf(seq, "%-9s", chtostr(dst->date, 8)); -+ seq_printf(seq, "%-.28s", dst->module_name_version); -+ seq_printf(seq, "%-.8s", dst->date); - seq_printf(seq, "%8d ", dst->module_size); - seq_printf(seq, "%8d ", dst->mpb_size); - seq_printf(seq, "0x%04x", dst->module_flags); -@@ -1272,14 +1264,10 @@ static int i2o_seq_show_dev_identity(struct seq_file *seq, void *v) - seq_printf(seq, "Device Class : %s\n", i2o_get_class_name(work16[0])); - seq_printf(seq, "Owner TID : %0#5x\n", work16[2]); - seq_printf(seq, "Parent TID : %0#5x\n", work16[3]); -- seq_printf(seq, "Vendor info : %s\n", -- chtostr((u8 *) (work32 + 2), 16)); -- seq_printf(seq, "Product info : %s\n", -- chtostr((u8 *) (work32 + 6), 16)); -- seq_printf(seq, "Description : %s\n", -- chtostr((u8 *) (work32 + 10), 16)); -- seq_printf(seq, "Product rev. : %s\n", -- chtostr((u8 *) (work32 + 14), 8)); -+ seq_printf(seq, "Vendor info : %.16s\n", (u8 *) (work32 + 2)); -+ seq_printf(seq, "Product info : %.16s\n", (u8 *) (work32 + 6)); -+ seq_printf(seq, "Description : %.16s\n", (u8 *) (work32 + 10)); -+ seq_printf(seq, "Product rev. : %.8s\n", (u8 *) (work32 + 14)); - - seq_printf(seq, "Serial number : "); - print_serial_number(seq, (u8 *) (work32 + 16), -@@ -1324,10 +1312,8 @@ static int i2o_seq_show_ddm_identity(struct seq_file *seq, void *v) - } - - seq_printf(seq, "Registering DDM TID : 0x%03x\n", result.ddm_tid); -- seq_printf(seq, "Module name : %s\n", -- chtostr(result.module_name, 24)); -- seq_printf(seq, "Module revision : %s\n", -- chtostr(result.module_rev, 8)); -+ seq_printf(seq, "Module name : %.24s\n", result.module_name); -+ seq_printf(seq, "Module revision : %.8s\n", result.module_rev); - - seq_printf(seq, "Serial number : "); - print_serial_number(seq, result.serial_number, sizeof(result) - 36); -@@ -1358,14 +1344,10 @@ static int i2o_seq_show_uinfo(struct seq_file *seq, void *v) - return 0; - } - -- seq_printf(seq, "Device name : %s\n", -- chtostr(result.device_name, 64)); -- seq_printf(seq, "Service name : %s\n", -- chtostr(result.service_name, 64)); -- seq_printf(seq, "Physical name : %s\n", -- chtostr(result.physical_location, 64)); -- seq_printf(seq, "Instance number : %s\n", -- chtostr(result.instance_number, 4)); -+ seq_printf(seq, "Device name : %.64s\n", result.device_name); -+ seq_printf(seq, "Service name : %.64s\n", result.service_name); -+ seq_printf(seq, "Physical name : %.64s\n", result.physical_location); -+ seq_printf(seq, "Instance number : %.4s\n", result.instance_number); - - return 0; - } -diff --git a/drivers/message/i2o/iop.c b/drivers/message/i2o/iop.c -index a8c08f3..155fe3d 100644 ---- a/drivers/message/i2o/iop.c -+++ b/drivers/message/i2o/iop.c -@@ -111,10 +111,10 @@ u32 i2o_cntxt_list_add(struct i2o_controller * c, void *ptr) - - spin_lock_irqsave(&c->context_list_lock, flags); - -- if (unlikely(atomic_inc_and_test(&c->context_list_counter))) -- atomic_inc(&c->context_list_counter); -+ if (unlikely(atomic_inc_and_test_unchecked(&c->context_list_counter))) -+ atomic_inc_unchecked(&c->context_list_counter); - -- entry->context = atomic_read(&c->context_list_counter); -+ entry->context = atomic_read_unchecked(&c->context_list_counter); - - list_add(&entry->list, &c->context_list); - -@@ -1077,7 +1077,7 @@ struct i2o_controller *i2o_iop_alloc(void) - - #if BITS_PER_LONG == 64 - spin_lock_init(&c->context_list_lock); -- atomic_set(&c->context_list_counter, 0); -+ atomic_set_unchecked(&c->context_list_counter, 0); - INIT_LIST_HEAD(&c->context_list); - #endif - -diff --git a/drivers/mfd/abx500-core.c b/drivers/mfd/abx500-core.c -index 7ce65f4..e66e9bc 100644 ---- a/drivers/mfd/abx500-core.c -+++ b/drivers/mfd/abx500-core.c -@@ -15,7 +15,7 @@ static LIST_HEAD(abx500_list); - - struct abx500_device_entry { - struct list_head list; -- struct abx500_ops ops; -+ abx500_ops_no_const ops; - struct device *dev; - }; - -diff --git a/drivers/mfd/janz-cmodio.c b/drivers/mfd/janz-cmodio.c -index a9223ed..4127b13 100644 ---- a/drivers/mfd/janz-cmodio.c -+++ b/drivers/mfd/janz-cmodio.c -@@ -13,6 +13,7 @@ - - #include <linux/kernel.h> - #include <linux/module.h> -+#include <linux/slab.h> - #include <linux/init.h> - #include <linux/pci.h> - #include <linux/interrupt.h> -diff --git a/drivers/misc/lis3lv02d/lis3lv02d.c b/drivers/misc/lis3lv02d/lis3lv02d.c -index a981e2a..5ca0c8b 100644 ---- a/drivers/misc/lis3lv02d/lis3lv02d.c -+++ b/drivers/misc/lis3lv02d/lis3lv02d.c -@@ -466,7 +466,7 @@ static irqreturn_t lis302dl_interrupt(int irq, void *data) - * the lid is closed. This leads to interrupts as soon as a little move - * is done. - */ -- atomic_inc(&lis3->count); -+ atomic_inc_unchecked(&lis3->count); - - wake_up_interruptible(&lis3->misc_wait); - kill_fasync(&lis3->async_queue, SIGIO, POLL_IN); -@@ -552,7 +552,7 @@ static int lis3lv02d_misc_open(struct inode *inode, struct file *file) - if (lis3->pm_dev) - pm_runtime_get_sync(lis3->pm_dev); - -- atomic_set(&lis3->count, 0); -+ atomic_set_unchecked(&lis3->count, 0); - return 0; - } - -@@ -585,7 +585,7 @@ static ssize_t lis3lv02d_misc_read(struct file *file, char __user *buf, - add_wait_queue(&lis3->misc_wait, &wait); - while (true) { - set_current_state(TASK_INTERRUPTIBLE); -- data = atomic_xchg(&lis3->count, 0); -+ data = atomic_xchg_unchecked(&lis3->count, 0); - if (data) - break; - -@@ -626,7 +626,7 @@ static unsigned int lis3lv02d_misc_poll(struct file *file, poll_table *wait) - struct lis3lv02d, miscdev); - - poll_wait(file, &lis3->misc_wait, wait); -- if (atomic_read(&lis3->count)) -+ if (atomic_read_unchecked(&lis3->count)) - return POLLIN | POLLRDNORM; - return 0; - } -diff --git a/drivers/misc/lis3lv02d/lis3lv02d.h b/drivers/misc/lis3lv02d/lis3lv02d.h -index 2b1482a..5d33616 100644 ---- a/drivers/misc/lis3lv02d/lis3lv02d.h -+++ b/drivers/misc/lis3lv02d/lis3lv02d.h -@@ -266,7 +266,7 @@ struct lis3lv02d { - struct input_polled_dev *idev; /* input device */ - struct platform_device *pdev; /* platform device */ - struct regulator_bulk_data regulators[2]; -- atomic_t count; /* interrupt count after last read */ -+ atomic_unchecked_t count; /* interrupt count after last read */ - union axis_conversion ac; /* hw -> logical axis */ - int mapped_btns[3]; - -diff --git a/drivers/misc/sgi-gru/gruhandles.c b/drivers/misc/sgi-gru/gruhandles.c -index 2f30bad..c4c13d0 100644 ---- a/drivers/misc/sgi-gru/gruhandles.c -+++ b/drivers/misc/sgi-gru/gruhandles.c -@@ -44,8 +44,8 @@ static void update_mcs_stats(enum mcs_op op, unsigned long clks) - unsigned long nsec; - - nsec = CLKS2NSEC(clks); -- atomic_long_inc(&mcs_op_statistics[op].count); -- atomic_long_add(nsec, &mcs_op_statistics[op].total); -+ atomic_long_inc_unchecked(&mcs_op_statistics[op].count); -+ atomic_long_add_unchecked(nsec, &mcs_op_statistics[op].total); - if (mcs_op_statistics[op].max < nsec) - mcs_op_statistics[op].max = nsec; - } -diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c -index 950dbe9..eeef0f8 100644 ---- a/drivers/misc/sgi-gru/gruprocfs.c -+++ b/drivers/misc/sgi-gru/gruprocfs.c -@@ -32,9 +32,9 @@ - - #define printstat(s, f) printstat_val(s, &gru_stats.f, #f) - --static void printstat_val(struct seq_file *s, atomic_long_t *v, char *id) -+static void printstat_val(struct seq_file *s, atomic_long_unchecked_t *v, char *id) - { -- unsigned long val = atomic_long_read(v); -+ unsigned long val = atomic_long_read_unchecked(v); - - seq_printf(s, "%16lu %s\n", val, id); - } -@@ -134,8 +134,8 @@ static int mcs_statistics_show(struct seq_file *s, void *p) - - seq_printf(s, "%-20s%12s%12s%12s\n", "#id", "count", "aver-clks", "max-clks"); - for (op = 0; op < mcsop_last; op++) { -- count = atomic_long_read(&mcs_op_statistics[op].count); -- total = atomic_long_read(&mcs_op_statistics[op].total); -+ count = atomic_long_read_unchecked(&mcs_op_statistics[op].count); -+ total = atomic_long_read_unchecked(&mcs_op_statistics[op].total); - max = mcs_op_statistics[op].max; - seq_printf(s, "%-20s%12ld%12ld%12ld\n", id[op], count, - count ? total / count : 0, max); -diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h -index 5c3ce24..4915ccb 100644 ---- a/drivers/misc/sgi-gru/grutables.h -+++ b/drivers/misc/sgi-gru/grutables.h -@@ -167,82 +167,82 @@ extern unsigned int gru_max_gids; - * GRU statistics. - */ - struct gru_stats_s { -- atomic_long_t vdata_alloc; -- atomic_long_t vdata_free; -- atomic_long_t gts_alloc; -- atomic_long_t gts_free; -- atomic_long_t gms_alloc; -- atomic_long_t gms_free; -- atomic_long_t gts_double_allocate; -- atomic_long_t assign_context; -- atomic_long_t assign_context_failed; -- atomic_long_t free_context; -- atomic_long_t load_user_context; -- atomic_long_t load_kernel_context; -- atomic_long_t lock_kernel_context; -- atomic_long_t unlock_kernel_context; -- atomic_long_t steal_user_context; -- atomic_long_t steal_kernel_context; -- atomic_long_t steal_context_failed; -- atomic_long_t nopfn; -- atomic_long_t asid_new; -- atomic_long_t asid_next; -- atomic_long_t asid_wrap; -- atomic_long_t asid_reuse; -- atomic_long_t intr; -- atomic_long_t intr_cbr; -- atomic_long_t intr_tfh; -- atomic_long_t intr_spurious; -- atomic_long_t intr_mm_lock_failed; -- atomic_long_t call_os; -- atomic_long_t call_os_wait_queue; -- atomic_long_t user_flush_tlb; -- atomic_long_t user_unload_context; -- atomic_long_t user_exception; -- atomic_long_t set_context_option; -- atomic_long_t check_context_retarget_intr; -- atomic_long_t check_context_unload; -- atomic_long_t tlb_dropin; -- atomic_long_t tlb_preload_page; -- atomic_long_t tlb_dropin_fail_no_asid; -- atomic_long_t tlb_dropin_fail_upm; -- atomic_long_t tlb_dropin_fail_invalid; -- atomic_long_t tlb_dropin_fail_range_active; -- atomic_long_t tlb_dropin_fail_idle; -- atomic_long_t tlb_dropin_fail_fmm; -- atomic_long_t tlb_dropin_fail_no_exception; -- atomic_long_t tfh_stale_on_fault; -- atomic_long_t mmu_invalidate_range; -- atomic_long_t mmu_invalidate_page; -- atomic_long_t flush_tlb; -- atomic_long_t flush_tlb_gru; -- atomic_long_t flush_tlb_gru_tgh; -- atomic_long_t flush_tlb_gru_zero_asid; -+ atomic_long_unchecked_t vdata_alloc; -+ atomic_long_unchecked_t vdata_free; -+ atomic_long_unchecked_t gts_alloc; -+ atomic_long_unchecked_t gts_free; -+ atomic_long_unchecked_t gms_alloc; -+ atomic_long_unchecked_t gms_free; -+ atomic_long_unchecked_t gts_double_allocate; -+ atomic_long_unchecked_t assign_context; -+ atomic_long_unchecked_t assign_context_failed; -+ atomic_long_unchecked_t free_context; -+ atomic_long_unchecked_t load_user_context; -+ atomic_long_unchecked_t load_kernel_context; -+ atomic_long_unchecked_t lock_kernel_context; -+ atomic_long_unchecked_t unlock_kernel_context; -+ atomic_long_unchecked_t steal_user_context; -+ atomic_long_unchecked_t steal_kernel_context; -+ atomic_long_unchecked_t steal_context_failed; -+ atomic_long_unchecked_t nopfn; -+ atomic_long_unchecked_t asid_new; -+ atomic_long_unchecked_t asid_next; -+ atomic_long_unchecked_t asid_wrap; -+ atomic_long_unchecked_t asid_reuse; -+ atomic_long_unchecked_t intr; -+ atomic_long_unchecked_t intr_cbr; -+ atomic_long_unchecked_t intr_tfh; -+ atomic_long_unchecked_t intr_spurious; -+ atomic_long_unchecked_t intr_mm_lock_failed; -+ atomic_long_unchecked_t call_os; -+ atomic_long_unchecked_t call_os_wait_queue; -+ atomic_long_unchecked_t user_flush_tlb; -+ atomic_long_unchecked_t user_unload_context; -+ atomic_long_unchecked_t user_exception; -+ atomic_long_unchecked_t set_context_option; -+ atomic_long_unchecked_t check_context_retarget_intr; -+ atomic_long_unchecked_t check_context_unload; -+ atomic_long_unchecked_t tlb_dropin; -+ atomic_long_unchecked_t tlb_preload_page; -+ atomic_long_unchecked_t tlb_dropin_fail_no_asid; -+ atomic_long_unchecked_t tlb_dropin_fail_upm; -+ atomic_long_unchecked_t tlb_dropin_fail_invalid; -+ atomic_long_unchecked_t tlb_dropin_fail_range_active; -+ atomic_long_unchecked_t tlb_dropin_fail_idle; -+ atomic_long_unchecked_t tlb_dropin_fail_fmm; -+ atomic_long_unchecked_t tlb_dropin_fail_no_exception; -+ atomic_long_unchecked_t tfh_stale_on_fault; -+ atomic_long_unchecked_t mmu_invalidate_range; -+ atomic_long_unchecked_t mmu_invalidate_page; -+ atomic_long_unchecked_t flush_tlb; -+ atomic_long_unchecked_t flush_tlb_gru; -+ atomic_long_unchecked_t flush_tlb_gru_tgh; -+ atomic_long_unchecked_t flush_tlb_gru_zero_asid; - -- atomic_long_t copy_gpa; -- atomic_long_t read_gpa; -+ atomic_long_unchecked_t copy_gpa; -+ atomic_long_unchecked_t read_gpa; - -- atomic_long_t mesq_receive; -- atomic_long_t mesq_receive_none; -- atomic_long_t mesq_send; -- atomic_long_t mesq_send_failed; -- atomic_long_t mesq_noop; -- atomic_long_t mesq_send_unexpected_error; -- atomic_long_t mesq_send_lb_overflow; -- atomic_long_t mesq_send_qlimit_reached; -- atomic_long_t mesq_send_amo_nacked; -- atomic_long_t mesq_send_put_nacked; -- atomic_long_t mesq_page_overflow; -- atomic_long_t mesq_qf_locked; -- atomic_long_t mesq_qf_noop_not_full; -- atomic_long_t mesq_qf_switch_head_failed; -- atomic_long_t mesq_qf_unexpected_error; -- atomic_long_t mesq_noop_unexpected_error; -- atomic_long_t mesq_noop_lb_overflow; -- atomic_long_t mesq_noop_qlimit_reached; -- atomic_long_t mesq_noop_amo_nacked; -- atomic_long_t mesq_noop_put_nacked; -- atomic_long_t mesq_noop_page_overflow; -+ atomic_long_unchecked_t mesq_receive; -+ atomic_long_unchecked_t mesq_receive_none; -+ atomic_long_unchecked_t mesq_send; -+ atomic_long_unchecked_t mesq_send_failed; -+ atomic_long_unchecked_t mesq_noop; -+ atomic_long_unchecked_t mesq_send_unexpected_error; -+ atomic_long_unchecked_t mesq_send_lb_overflow; -+ atomic_long_unchecked_t mesq_send_qlimit_reached; -+ atomic_long_unchecked_t mesq_send_amo_nacked; -+ atomic_long_unchecked_t mesq_send_put_nacked; -+ atomic_long_unchecked_t mesq_page_overflow; -+ atomic_long_unchecked_t mesq_qf_locked; -+ atomic_long_unchecked_t mesq_qf_noop_not_full; -+ atomic_long_unchecked_t mesq_qf_switch_head_failed; -+ atomic_long_unchecked_t mesq_qf_unexpected_error; -+ atomic_long_unchecked_t mesq_noop_unexpected_error; -+ atomic_long_unchecked_t mesq_noop_lb_overflow; -+ atomic_long_unchecked_t mesq_noop_qlimit_reached; -+ atomic_long_unchecked_t mesq_noop_amo_nacked; -+ atomic_long_unchecked_t mesq_noop_put_nacked; -+ atomic_long_unchecked_t mesq_noop_page_overflow; - - }; - -@@ -251,8 +251,8 @@ enum mcs_op {cchop_allocate, cchop_start, cchop_interrupt, cchop_interrupt_sync, - tghop_invalidate, mcsop_last}; - - struct mcs_op_statistic { -- atomic_long_t count; -- atomic_long_t total; -+ atomic_long_unchecked_t count; -+ atomic_long_unchecked_t total; - unsigned long max; - }; - -@@ -275,7 +275,7 @@ extern struct mcs_op_statistic mcs_op_statistics[mcsop_last]; - - #define STAT(id) do { \ - if (gru_options & OPT_STATS) \ -- atomic_long_inc(&gru_stats.id); \ -+ atomic_long_inc_unchecked(&gru_stats.id); \ - } while (0) - - #ifdef CONFIG_SGI_GRU_DEBUG -diff --git a/drivers/misc/sgi-xp/xp.h b/drivers/misc/sgi-xp/xp.h -index c862cd4..0d176fe 100644 ---- a/drivers/misc/sgi-xp/xp.h -+++ b/drivers/misc/sgi-xp/xp.h -@@ -288,7 +288,7 @@ struct xpc_interface { - xpc_notify_func, void *); - void (*received) (short, int, void *); - enum xp_retval (*partid_to_nasids) (short, void *); --}; -+} __no_const; - - extern struct xpc_interface xpc_interface; - -diff --git a/drivers/misc/sgi-xp/xpc.h b/drivers/misc/sgi-xp/xpc.h -index b94d5f7..7f494c5 100644 ---- a/drivers/misc/sgi-xp/xpc.h -+++ b/drivers/misc/sgi-xp/xpc.h -@@ -835,6 +835,7 @@ struct xpc_arch_operations { - void (*received_payload) (struct xpc_channel *, void *); - void (*notify_senders_of_disconnect) (struct xpc_channel *); - }; -+typedef struct xpc_arch_operations __no_const xpc_arch_operations_no_const; - - /* struct xpc_partition act_state values (for XPC HB) */ - -@@ -876,7 +877,7 @@ extern struct xpc_registration xpc_registrations[]; - /* found in xpc_main.c */ - extern struct device *xpc_part; - extern struct device *xpc_chan; --extern struct xpc_arch_operations xpc_arch_ops; -+extern xpc_arch_operations_no_const xpc_arch_ops; - extern int xpc_disengage_timelimit; - extern int xpc_disengage_timedout; - extern int xpc_activate_IRQ_rcvd; -diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c -index 8d082b4..aa749ae 100644 ---- a/drivers/misc/sgi-xp/xpc_main.c -+++ b/drivers/misc/sgi-xp/xpc_main.c -@@ -162,7 +162,7 @@ static struct notifier_block xpc_die_notifier = { - .notifier_call = xpc_system_die, - }; - --struct xpc_arch_operations xpc_arch_ops; -+xpc_arch_operations_no_const xpc_arch_ops; - - /* - * Timer function to enforce the timelimit on the partition disengage. -diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c -index 69ef0be..f3ef91e 100644 ---- a/drivers/mmc/host/sdhci-pci.c -+++ b/drivers/mmc/host/sdhci-pci.c -@@ -652,7 +652,7 @@ static const struct sdhci_pci_fixes sdhci_via = { - .probe = via_probe, - }; - --static const struct pci_device_id pci_ids[] __devinitdata = { -+static const struct pci_device_id pci_ids[] __devinitconst = { - { - .vendor = PCI_VENDOR_ID_RICOH, - .device = PCI_DEVICE_ID_RICOH_R5C822, -diff --git a/drivers/mtd/devices/doc2000.c b/drivers/mtd/devices/doc2000.c -index a4eb8b5..8c0628f 100644 ---- a/drivers/mtd/devices/doc2000.c -+++ b/drivers/mtd/devices/doc2000.c -@@ -753,7 +753,7 @@ static int doc_write(struct mtd_info *mtd, loff_t to, size_t len, - - /* The ECC will not be calculated correctly if less than 512 is written */ - /* DBB- -- if (len != 0x200 && eccbuf) -+ if (len != 0x200) - printk(KERN_WARNING - "ECC needs a full sector write (adr: %lx size %lx)\n", - (long) to, (long) len); -diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c -index a9e57d6..c6d8731 100644 ---- a/drivers/mtd/nand/denali.c -+++ b/drivers/mtd/nand/denali.c -@@ -26,6 +26,7 @@ - #include <linux/pci.h> - #include <linux/mtd/mtd.h> - #include <linux/module.h> -+#include <linux/slab.h> - - #include "denali.h" - -diff --git a/drivers/mtd/nftlmount.c b/drivers/mtd/nftlmount.c -index 51b9d6a..52af9a7 100644 ---- a/drivers/mtd/nftlmount.c -+++ b/drivers/mtd/nftlmount.c -@@ -24,6 +24,7 @@ - #include <asm/errno.h> - #include <linux/delay.h> - #include <linux/slab.h> -+#include <linux/sched.h> - #include <linux/mtd/mtd.h> - #include <linux/mtd/nand.h> - #include <linux/mtd/nftl.h> -diff --git a/drivers/net/ethernet/atheros/atlx/atl2.c b/drivers/net/ethernet/atheros/atlx/atl2.c -index 6762dc4..9956862 100644 ---- a/drivers/net/ethernet/atheros/atlx/atl2.c -+++ b/drivers/net/ethernet/atheros/atlx/atl2.c -@@ -2859,7 +2859,7 @@ static void atl2_force_ps(struct atl2_hw *hw) - */ - - #define ATL2_PARAM(X, desc) \ -- static const int __devinitdata X[ATL2_MAX_NIC + 1] = ATL2_PARAM_INIT; \ -+ static const int __devinitconst X[ATL2_MAX_NIC + 1] = ATL2_PARAM_INIT; \ - MODULE_PARM(X, "1-" __MODULE_STRING(ATL2_MAX_NIC) "i"); \ - MODULE_PARM_DESC(X, desc); - #else -diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h -index 61a7670..7da6e34 100644 ---- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h -+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h -@@ -483,7 +483,7 @@ struct bnx2x_rx_mode_obj { - - int (*wait_comp)(struct bnx2x *bp, - struct bnx2x_rx_mode_ramrod_params *p); --}; -+} __no_const; - - /********************** Set multicast group ***********************************/ - -diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h -index 93865f8..5448741 100644 ---- a/drivers/net/ethernet/broadcom/tg3.h -+++ b/drivers/net/ethernet/broadcom/tg3.h -@@ -140,6 +140,7 @@ - #define CHIPREV_ID_5750_A0 0x4000 - #define CHIPREV_ID_5750_A1 0x4001 - #define CHIPREV_ID_5750_A3 0x4003 -+#define CHIPREV_ID_5750_C1 0x4201 - #define CHIPREV_ID_5750_C2 0x4202 - #define CHIPREV_ID_5752_A0_HW 0x5000 - #define CHIPREV_ID_5752_A0 0x6000 -diff --git a/drivers/net/ethernet/chelsio/cxgb3/l2t.h b/drivers/net/ethernet/chelsio/cxgb3/l2t.h -index c4e8643..0979484 100644 ---- a/drivers/net/ethernet/chelsio/cxgb3/l2t.h -+++ b/drivers/net/ethernet/chelsio/cxgb3/l2t.h -@@ -87,7 +87,7 @@ typedef void (*arp_failure_handler_func)(struct t3cdev * dev, - */ - struct l2t_skb_cb { - arp_failure_handler_func arp_failure_handler; --}; -+} __no_const; - - #define L2T_SKB_CB(skb) ((struct l2t_skb_cb *)(skb)->cb) - -diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c -index 18b106c..2b38d36 100644 ---- a/drivers/net/ethernet/dec/tulip/de4x5.c -+++ b/drivers/net/ethernet/dec/tulip/de4x5.c -@@ -5388,7 +5388,7 @@ de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) - for (i=0; i<ETH_ALEN; i++) { - tmp.addr[i] = dev->dev_addr[i]; - } -- if (copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT; -+ if (ioc->len > sizeof tmp.addr || copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT; - break; - - case DE4X5_SET_HWADDR: /* Set the hardware address */ -@@ -5428,7 +5428,7 @@ de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) - spin_lock_irqsave(&lp->lock, flags); - memcpy(&statbuf, &lp->pktStats, ioc->len); - spin_unlock_irqrestore(&lp->lock, flags); -- if (copy_to_user(ioc->data, &statbuf, ioc->len)) -+ if (ioc->len > sizeof statbuf || copy_to_user(ioc->data, &statbuf, ioc->len)) - return -EFAULT; - break; - } -diff --git a/drivers/net/ethernet/dec/tulip/eeprom.c b/drivers/net/ethernet/dec/tulip/eeprom.c -index ed7d1dc..d426748 100644 ---- a/drivers/net/ethernet/dec/tulip/eeprom.c -+++ b/drivers/net/ethernet/dec/tulip/eeprom.c -@@ -79,7 +79,7 @@ static struct eeprom_fixup eeprom_fixups[] __devinitdata = { - {NULL}}; - - --static const char *block_name[] __devinitdata = { -+static const char *block_name[] __devinitconst = { - "21140 non-MII", - "21140 MII PHY", - "21142 Serial PHY", -diff --git a/drivers/net/ethernet/dec/tulip/winbond-840.c b/drivers/net/ethernet/dec/tulip/winbond-840.c -index 2ac6fff..2d127d0 100644 ---- a/drivers/net/ethernet/dec/tulip/winbond-840.c -+++ b/drivers/net/ethernet/dec/tulip/winbond-840.c -@@ -236,7 +236,7 @@ struct pci_id_info { - int drv_flags; /* Driver use, intended as capability flags. */ - }; - --static const struct pci_id_info pci_id_tbl[] __devinitdata = { -+static const struct pci_id_info pci_id_tbl[] __devinitconst = { - { /* Sometime a Level-One switch card. */ - "Winbond W89c840", CanHaveMII | HasBrokenTx | FDXOnNoMII}, - { "Winbond W89c840", CanHaveMII | HasBrokenTx}, -diff --git a/drivers/net/ethernet/dlink/sundance.c b/drivers/net/ethernet/dlink/sundance.c -index d783f4f..97fa1b0 100644 ---- a/drivers/net/ethernet/dlink/sundance.c -+++ b/drivers/net/ethernet/dlink/sundance.c -@@ -218,7 +218,7 @@ enum { - struct pci_id_info { - const char *name; - }; --static const struct pci_id_info pci_id_tbl[] __devinitdata = { -+static const struct pci_id_info pci_id_tbl[] __devinitconst = { - {"D-Link DFE-550TX FAST Ethernet Adapter"}, - {"D-Link DFE-550FX 100Mbps Fiber-optics Adapter"}, - {"D-Link DFE-580TX 4 port Server Adapter"}, -diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c -index 528a886..e6a98a3 100644 ---- a/drivers/net/ethernet/emulex/benet/be_main.c -+++ b/drivers/net/ethernet/emulex/benet/be_main.c -@@ -403,7 +403,7 @@ static void accumulate_16bit_val(u32 *acc, u16 val) - - if (wrapped) - newacc += 65536; -- ACCESS_ONCE(*acc) = newacc; -+ ACCESS_ONCE_RW(*acc) = newacc; - } - - void be_parse_stats(struct be_adapter *adapter) -diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c -index 16b0704..d2c07d7 100644 ---- a/drivers/net/ethernet/faraday/ftgmac100.c -+++ b/drivers/net/ethernet/faraday/ftgmac100.c -@@ -31,6 +31,8 @@ - #include <linux/netdevice.h> - #include <linux/phy.h> - #include <linux/platform_device.h> -+#include <linux/interrupt.h> -+#include <linux/irqreturn.h> - #include <net/ip.h> - - #include "ftgmac100.h" -diff --git a/drivers/net/ethernet/faraday/ftmac100.c b/drivers/net/ethernet/faraday/ftmac100.c -index 829b109..4ae5f6a 100644 ---- a/drivers/net/ethernet/faraday/ftmac100.c -+++ b/drivers/net/ethernet/faraday/ftmac100.c -@@ -31,6 +31,8 @@ - #include <linux/module.h> - #include <linux/netdevice.h> - #include <linux/platform_device.h> -+#include <linux/interrupt.h> -+#include <linux/irqreturn.h> - - #include "ftmac100.h" - -diff --git a/drivers/net/ethernet/fealnx.c b/drivers/net/ethernet/fealnx.c -index 1637b98..c42f87b 100644 ---- a/drivers/net/ethernet/fealnx.c -+++ b/drivers/net/ethernet/fealnx.c -@@ -150,7 +150,7 @@ struct chip_info { - int flags; - }; - --static const struct chip_info skel_netdrv_tbl[] __devinitdata = { -+static const struct chip_info skel_netdrv_tbl[] __devinitconst = { - { "100/10M Ethernet PCI Adapter", HAS_MII_XCVR }, - { "100/10M Ethernet PCI Adapter", HAS_CHIP_XCVR }, - { "1000/100/10M Ethernet PCI Adapter", HAS_MII_XCVR }, -diff --git a/drivers/net/ethernet/intel/e1000e/e1000.h b/drivers/net/ethernet/intel/e1000e/e1000.h -index b83897f..b2d970f 100644 ---- a/drivers/net/ethernet/intel/e1000e/e1000.h -+++ b/drivers/net/ethernet/intel/e1000e/e1000.h -@@ -181,7 +181,7 @@ struct e1000_info; - #define E1000_TXDCTL_DMA_BURST_ENABLE \ - (E1000_TXDCTL_GRAN | /* set descriptor granularity */ \ - E1000_TXDCTL_COUNT_DESC | \ -- (5 << 16) | /* wthresh must be +1 more than desired */\ -+ (1 << 16) | /* wthresh must be +1 more than desired */\ - (1 << 8) | /* hthresh */ \ - 0x1f) /* pthresh */ - -diff --git a/drivers/net/ethernet/intel/e1000e/hw.h b/drivers/net/ethernet/intel/e1000e/hw.h -index f82ecf5..7d59ecb 100644 ---- a/drivers/net/ethernet/intel/e1000e/hw.h -+++ b/drivers/net/ethernet/intel/e1000e/hw.h -@@ -784,6 +784,7 @@ struct e1000_mac_operations { - void (*config_collision_dist)(struct e1000_hw *); - s32 (*read_mac_addr)(struct e1000_hw *); - }; -+typedef struct e1000_mac_operations __no_const e1000_mac_operations_no_const; - - /* - * When to use various PHY register access functions: -@@ -824,6 +825,7 @@ struct e1000_phy_operations { - void (*power_up)(struct e1000_hw *); - void (*power_down)(struct e1000_hw *); - }; -+typedef struct e1000_phy_operations __no_const e1000_phy_operations_no_const; - - /* Function pointers for the NVM. */ - struct e1000_nvm_operations { -@@ -836,9 +838,10 @@ struct e1000_nvm_operations { - s32 (*validate)(struct e1000_hw *); - s32 (*write)(struct e1000_hw *, u16, u16, u16 *); - }; -+typedef struct e1000_nvm_operations __no_const e1000_nvm_operations_no_const; - - struct e1000_mac_info { -- struct e1000_mac_operations ops; -+ e1000_mac_operations_no_const ops; - u8 addr[ETH_ALEN]; - u8 perm_addr[ETH_ALEN]; - -@@ -879,7 +882,7 @@ struct e1000_mac_info { - }; - - struct e1000_phy_info { -- struct e1000_phy_operations ops; -+ e1000_phy_operations_no_const ops; - - enum e1000_phy_type type; - -@@ -913,7 +916,7 @@ struct e1000_phy_info { - }; - - struct e1000_nvm_info { -- struct e1000_nvm_operations ops; -+ e1000_nvm_operations_no_const ops; - - enum e1000_nvm_type type; - enum e1000_nvm_override override; -diff --git a/drivers/net/ethernet/intel/igb/e1000_hw.h b/drivers/net/ethernet/intel/igb/e1000_hw.h -index f67cbd3..cef9e3d 100644 ---- a/drivers/net/ethernet/intel/igb/e1000_hw.h -+++ b/drivers/net/ethernet/intel/igb/e1000_hw.h -@@ -314,6 +314,7 @@ struct e1000_mac_operations { - s32 (*read_mac_addr)(struct e1000_hw *); - s32 (*get_speed_and_duplex)(struct e1000_hw *, u16 *, u16 *); - }; -+typedef struct e1000_mac_operations __no_const e1000_mac_operations_no_const; - - struct e1000_phy_operations { - s32 (*acquire)(struct e1000_hw *); -@@ -330,6 +331,7 @@ struct e1000_phy_operations { - s32 (*set_d3_lplu_state)(struct e1000_hw *, bool); - s32 (*write_reg)(struct e1000_hw *, u32, u16); - }; -+typedef struct e1000_phy_operations __no_const e1000_phy_operations_no_const; - - struct e1000_nvm_operations { - s32 (*acquire)(struct e1000_hw *); -@@ -339,6 +341,7 @@ struct e1000_nvm_operations { - s32 (*update)(struct e1000_hw *); - s32 (*validate)(struct e1000_hw *); - }; -+typedef struct e1000_nvm_operations __no_const e1000_nvm_operations_no_const; - - struct e1000_info { - s32 (*get_invariants)(struct e1000_hw *); -@@ -350,7 +353,7 @@ struct e1000_info { - extern const struct e1000_info e1000_82575_info; - - struct e1000_mac_info { -- struct e1000_mac_operations ops; -+ e1000_mac_operations_no_const ops; - - u8 addr[6]; - u8 perm_addr[6]; -@@ -388,7 +391,7 @@ struct e1000_mac_info { - }; - - struct e1000_phy_info { -- struct e1000_phy_operations ops; -+ e1000_phy_operations_no_const ops; - - enum e1000_phy_type type; - -@@ -423,7 +426,7 @@ struct e1000_phy_info { - }; - - struct e1000_nvm_info { -- struct e1000_nvm_operations ops; -+ e1000_nvm_operations_no_const ops; - enum e1000_nvm_type type; - enum e1000_nvm_override override; - -@@ -468,6 +471,7 @@ struct e1000_mbx_operations { - s32 (*check_for_ack)(struct e1000_hw *, u16); - s32 (*check_for_rst)(struct e1000_hw *, u16); - }; -+typedef struct e1000_mbx_operations __no_const e1000_mbx_operations_no_const; - - struct e1000_mbx_stats { - u32 msgs_tx; -@@ -479,7 +483,7 @@ struct e1000_mbx_stats { - }; - - struct e1000_mbx_info { -- struct e1000_mbx_operations ops; -+ e1000_mbx_operations_no_const ops; - struct e1000_mbx_stats stats; - u32 timeout; - u32 usec_delay; -diff --git a/drivers/net/ethernet/intel/igbvf/vf.h b/drivers/net/ethernet/intel/igbvf/vf.h -index 57db3c6..aa825fc 100644 ---- a/drivers/net/ethernet/intel/igbvf/vf.h -+++ b/drivers/net/ethernet/intel/igbvf/vf.h -@@ -189,9 +189,10 @@ struct e1000_mac_operations { - s32 (*read_mac_addr)(struct e1000_hw *); - s32 (*set_vfta)(struct e1000_hw *, u16, bool); - }; -+typedef struct e1000_mac_operations __no_const e1000_mac_operations_no_const; - - struct e1000_mac_info { -- struct e1000_mac_operations ops; -+ e1000_mac_operations_no_const ops; - u8 addr[6]; - u8 perm_addr[6]; - -@@ -213,6 +214,7 @@ struct e1000_mbx_operations { - s32 (*check_for_ack)(struct e1000_hw *); - s32 (*check_for_rst)(struct e1000_hw *); - }; -+typedef struct e1000_mbx_operations __no_const e1000_mbx_operations_no_const; - - struct e1000_mbx_stats { - u32 msgs_tx; -@@ -224,7 +226,7 @@ struct e1000_mbx_stats { - }; - - struct e1000_mbx_info { -- struct e1000_mbx_operations ops; -+ e1000_mbx_operations_no_const ops; - struct e1000_mbx_stats stats; - u32 timeout; - u32 usec_delay; -diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h -index 8636e83..ab9bbc3 100644 ---- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h -+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h -@@ -2710,6 +2710,7 @@ struct ixgbe_eeprom_operations { - s32 (*update_checksum)(struct ixgbe_hw *); - u16 (*calc_checksum)(struct ixgbe_hw *); - }; -+typedef struct ixgbe_eeprom_operations __no_const ixgbe_eeprom_operations_no_const; - - struct ixgbe_mac_operations { - s32 (*init_hw)(struct ixgbe_hw *); -@@ -2773,6 +2774,7 @@ struct ixgbe_mac_operations { - /* Manageability interface */ - s32 (*set_fw_drv_ver)(struct ixgbe_hw *, u8, u8, u8, u8); - }; -+typedef struct ixgbe_mac_operations __no_const ixgbe_mac_operations_no_const; - - struct ixgbe_phy_operations { - s32 (*identify)(struct ixgbe_hw *); -@@ -2792,9 +2794,10 @@ struct ixgbe_phy_operations { - s32 (*write_i2c_eeprom)(struct ixgbe_hw *, u8, u8); - s32 (*check_overtemp)(struct ixgbe_hw *); - }; -+typedef struct ixgbe_phy_operations __no_const ixgbe_phy_operations_no_const; - - struct ixgbe_eeprom_info { -- struct ixgbe_eeprom_operations ops; -+ ixgbe_eeprom_operations_no_const ops; - enum ixgbe_eeprom_type type; - u32 semaphore_delay; - u16 word_size; -@@ -2804,7 +2807,7 @@ struct ixgbe_eeprom_info { - - #define IXGBE_FLAGS_DOUBLE_RESET_REQUIRED 0x01 - struct ixgbe_mac_info { -- struct ixgbe_mac_operations ops; -+ ixgbe_mac_operations_no_const ops; - enum ixgbe_mac_type type; - u8 addr[ETH_ALEN]; - u8 perm_addr[ETH_ALEN]; -@@ -2832,7 +2835,7 @@ struct ixgbe_mac_info { - }; - - struct ixgbe_phy_info { -- struct ixgbe_phy_operations ops; -+ ixgbe_phy_operations_no_const ops; - struct mdio_if_info mdio; - enum ixgbe_phy_type type; - u32 id; -@@ -2860,6 +2863,7 @@ struct ixgbe_mbx_operations { - s32 (*check_for_ack)(struct ixgbe_hw *, u16); - s32 (*check_for_rst)(struct ixgbe_hw *, u16); - }; -+typedef struct ixgbe_mbx_operations __no_const ixgbe_mbx_operations_no_const; - - struct ixgbe_mbx_stats { - u32 msgs_tx; -@@ -2871,7 +2875,7 @@ struct ixgbe_mbx_stats { - }; - - struct ixgbe_mbx_info { -- struct ixgbe_mbx_operations ops; -+ ixgbe_mbx_operations_no_const ops; - struct ixgbe_mbx_stats stats; - u32 timeout; - u32 usec_delay; -diff --git a/drivers/net/ethernet/intel/ixgbevf/vf.h b/drivers/net/ethernet/intel/ixgbevf/vf.h -index 25c951d..cc7cf33 100644 ---- a/drivers/net/ethernet/intel/ixgbevf/vf.h -+++ b/drivers/net/ethernet/intel/ixgbevf/vf.h -@@ -70,6 +70,7 @@ struct ixgbe_mac_operations { - s32 (*clear_vfta)(struct ixgbe_hw *); - s32 (*set_vfta)(struct ixgbe_hw *, u32, u32, bool); - }; -+typedef struct ixgbe_mac_operations __no_const ixgbe_mac_operations_no_const; - - enum ixgbe_mac_type { - ixgbe_mac_unknown = 0, -@@ -79,7 +80,7 @@ enum ixgbe_mac_type { - }; - - struct ixgbe_mac_info { -- struct ixgbe_mac_operations ops; -+ ixgbe_mac_operations_no_const ops; - u8 addr[6]; - u8 perm_addr[6]; - -@@ -103,6 +104,7 @@ struct ixgbe_mbx_operations { - s32 (*check_for_ack)(struct ixgbe_hw *); - s32 (*check_for_rst)(struct ixgbe_hw *); - }; -+typedef struct ixgbe_mbx_operations __no_const ixgbe_mbx_operations_no_const; - - struct ixgbe_mbx_stats { - u32 msgs_tx; -@@ -114,7 +116,7 @@ struct ixgbe_mbx_stats { - }; - - struct ixgbe_mbx_info { -- struct ixgbe_mbx_operations ops; -+ ixgbe_mbx_operations_no_const ops; - struct ixgbe_mbx_stats stats; - u32 timeout; - u32 udelay; -diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c -index 8bb05b4..074796f 100644 ---- a/drivers/net/ethernet/mellanox/mlx4/main.c -+++ b/drivers/net/ethernet/mellanox/mlx4/main.c -@@ -41,6 +41,7 @@ - #include <linux/slab.h> - #include <linux/io-mapping.h> - #include <linux/delay.h> -+#include <linux/sched.h> - - #include <linux/mlx4/device.h> - #include <linux/mlx4/doorbell.h> -diff --git a/drivers/net/ethernet/neterion/vxge/vxge-config.h b/drivers/net/ethernet/neterion/vxge/vxge-config.h -index 5046a64..71ca936 100644 ---- a/drivers/net/ethernet/neterion/vxge/vxge-config.h -+++ b/drivers/net/ethernet/neterion/vxge/vxge-config.h -@@ -514,7 +514,7 @@ struct vxge_hw_uld_cbs { - void (*link_down)(struct __vxge_hw_device *devh); - void (*crit_err)(struct __vxge_hw_device *devh, - enum vxge_hw_event type, u64 ext_data); --}; -+} __no_const; - - /* - * struct __vxge_hw_blockpool_entry - Block private data structure -diff --git a/drivers/net/ethernet/neterion/vxge/vxge-traffic.h b/drivers/net/ethernet/neterion/vxge/vxge-traffic.h -index 4a518a3..936b334 100644 ---- a/drivers/net/ethernet/neterion/vxge/vxge-traffic.h -+++ b/drivers/net/ethernet/neterion/vxge/vxge-traffic.h -@@ -2088,7 +2088,7 @@ struct vxge_hw_mempool_cbs { - struct vxge_hw_mempool_dma *dma_object, - u32 index, - u32 is_last); --}; -+} __no_const; - - #define VXGE_HW_VIRTUAL_PATH_HANDLE(vpath) \ - ((struct __vxge_hw_vpath_handle *)(vpath)->vpath_handles.next) -diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c -index ce6b44d..74f10c2 100644 ---- a/drivers/net/ethernet/realtek/r8169.c -+++ b/drivers/net/ethernet/realtek/r8169.c -@@ -708,17 +708,17 @@ struct rtl8169_private { - struct mdio_ops { - void (*write)(void __iomem *, int, int); - int (*read)(void __iomem *, int); -- } mdio_ops; -+ } __no_const mdio_ops; - - struct pll_power_ops { - void (*down)(struct rtl8169_private *); - void (*up)(struct rtl8169_private *); -- } pll_power_ops; -+ } __no_const pll_power_ops; - - struct jumbo_ops { - void (*enable)(struct rtl8169_private *); - void (*disable)(struct rtl8169_private *); -- } jumbo_ops; -+ } __no_const jumbo_ops; - - int (*set_speed)(struct net_device *, u8 aneg, u16 sp, u8 dpx, u32 adv); - int (*get_settings)(struct net_device *, struct ethtool_cmd *); -diff --git a/drivers/net/ethernet/sis/sis190.c b/drivers/net/ethernet/sis/sis190.c -index a9deda8..5507c31 100644 ---- a/drivers/net/ethernet/sis/sis190.c -+++ b/drivers/net/ethernet/sis/sis190.c -@@ -1620,7 +1620,7 @@ static int __devinit sis190_get_mac_addr_from_eeprom(struct pci_dev *pdev, - static int __devinit sis190_get_mac_addr_from_apc(struct pci_dev *pdev, - struct net_device *dev) - { -- static const u16 __devinitdata ids[] = { 0x0965, 0x0966, 0x0968 }; -+ static const u16 __devinitconst ids[] = { 0x0965, 0x0966, 0x0968 }; - struct sis190_private *tp = netdev_priv(dev); - struct pci_dev *isa_bridge; - u8 reg, tmp8; -diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c -index c07cfe9..81cbf7e 100644 ---- a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c -+++ b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c -@@ -140,8 +140,8 @@ void dwmac_mmc_ctrl(void __iomem *ioaddr, unsigned int mode) - - writel(value, ioaddr + MMC_CNTRL); - -- pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n", -- MMC_CNTRL, value); -+// pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n", -+// MMC_CNTRL, value); - } - - /* To mask all all interrupts.*/ -diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c -index 48d56da..a27e46c 100644 ---- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c -+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c -@@ -1584,7 +1584,7 @@ static const struct file_operations stmmac_rings_status_fops = { - .open = stmmac_sysfs_ring_open, - .read = seq_read, - .llseek = seq_lseek, -- .release = seq_release, -+ .release = single_release, - }; - - static int stmmac_sysfs_dma_cap_read(struct seq_file *seq, void *v) -@@ -1656,7 +1656,7 @@ static const struct file_operations stmmac_dma_cap_fops = { - .open = stmmac_sysfs_dma_cap_open, - .read = seq_read, - .llseek = seq_lseek, -- .release = seq_release, -+ .release = single_release, - }; - - static int stmmac_init_fs(struct net_device *dev) -diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h -index c358245..8c1de63 100644 ---- a/drivers/net/hyperv/hyperv_net.h -+++ b/drivers/net/hyperv/hyperv_net.h -@@ -98,7 +98,7 @@ struct rndis_device { - - enum rndis_device_state state; - bool link_state; -- atomic_t new_req_id; -+ atomic_unchecked_t new_req_id; - - spinlock_t request_lock; - struct list_head req_list; -diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c -index d6be64b..5d97e3b 100644 ---- a/drivers/net/hyperv/rndis_filter.c -+++ b/drivers/net/hyperv/rndis_filter.c -@@ -97,7 +97,7 @@ static struct rndis_request *get_rndis_request(struct rndis_device *dev, - * template - */ - set = &rndis_msg->msg.set_req; -- set->req_id = atomic_inc_return(&dev->new_req_id); -+ set->req_id = atomic_inc_return_unchecked(&dev->new_req_id); - - /* Add to the request list */ - spin_lock_irqsave(&dev->request_lock, flags); -@@ -648,7 +648,7 @@ static void rndis_filter_halt_device(struct rndis_device *dev) - - /* Setup the rndis set */ - halt = &request->request_msg.msg.halt_req; -- halt->req_id = atomic_inc_return(&dev->new_req_id); -+ halt->req_id = atomic_inc_return_unchecked(&dev->new_req_id); - - /* Ignore return since this msg is optional. */ - rndis_filter_send_request(dev, request); -diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c -index cb8fd50..003ec38 100644 ---- a/drivers/net/macvtap.c -+++ b/drivers/net/macvtap.c -@@ -528,6 +528,8 @@ static int zerocopy_sg_from_iovec(struct sk_buff *skb, const struct iovec *from, - } - base = (unsigned long)from->iov_base + offset1; - size = ((base & ~PAGE_MASK) + len + ~PAGE_MASK) >> PAGE_SHIFT; -+ if (i + size >= MAX_SKB_FRAGS) -+ return -EFAULT; - num_pages = get_user_pages_fast(base, size, 0, &page[i]); - if ((num_pages != size) || - (num_pages > MAX_SKB_FRAGS - skb_shinfo(skb)->nr_frags)) -diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c -index 21d7151..8034208 100644 ---- a/drivers/net/ppp/ppp_generic.c -+++ b/drivers/net/ppp/ppp_generic.c -@@ -986,7 +986,6 @@ ppp_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) - void __user *addr = (void __user *) ifr->ifr_ifru.ifru_data; - struct ppp_stats stats; - struct ppp_comp_stats cstats; -- char *vers; - - switch (cmd) { - case SIOCGPPPSTATS: -@@ -1008,8 +1007,7 @@ ppp_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) - break; - - case SIOCGPPPVER: -- vers = PPP_VERSION; -- if (copy_to_user(addr, vers, strlen(vers) + 1)) -+ if (copy_to_user(addr, PPP_VERSION, sizeof(PPP_VERSION))) - break; - err = 0; - break; -diff --git a/drivers/net/tokenring/abyss.c b/drivers/net/tokenring/abyss.c -index b715e6b..6d2490f 100644 ---- a/drivers/net/tokenring/abyss.c -+++ b/drivers/net/tokenring/abyss.c -@@ -450,10 +450,12 @@ static struct pci_driver abyss_driver = { - - static int __init abyss_init (void) - { -- abyss_netdev_ops = tms380tr_netdev_ops; -+ pax_open_kernel(); -+ memcpy((void *)&abyss_netdev_ops, &tms380tr_netdev_ops, sizeof(tms380tr_netdev_ops)); - -- abyss_netdev_ops.ndo_open = abyss_open; -- abyss_netdev_ops.ndo_stop = abyss_close; -+ *(void **)&abyss_netdev_ops.ndo_open = abyss_open; -+ *(void **)&abyss_netdev_ops.ndo_stop = abyss_close; -+ pax_close_kernel(); - - return pci_register_driver(&abyss_driver); - } -diff --git a/drivers/net/tokenring/madgemc.c b/drivers/net/tokenring/madgemc.c -index 28adcdf..ae82f35 100644 ---- a/drivers/net/tokenring/madgemc.c -+++ b/drivers/net/tokenring/madgemc.c -@@ -742,9 +742,11 @@ static struct mca_driver madgemc_driver = { - - static int __init madgemc_init (void) - { -- madgemc_netdev_ops = tms380tr_netdev_ops; -- madgemc_netdev_ops.ndo_open = madgemc_open; -- madgemc_netdev_ops.ndo_stop = madgemc_close; -+ pax_open_kernel(); -+ memcpy((void *)&madgemc_netdev_ops, &tms380tr_netdev_ops, sizeof(tms380tr_netdev_ops)); -+ *(void **)&madgemc_netdev_ops.ndo_open = madgemc_open; -+ *(void **)&madgemc_netdev_ops.ndo_stop = madgemc_close; -+ pax_close_kernel(); - - return mca_register_driver (&madgemc_driver); - } -diff --git a/drivers/net/tokenring/proteon.c b/drivers/net/tokenring/proteon.c -index 62d90e4..9d84237 100644 ---- a/drivers/net/tokenring/proteon.c -+++ b/drivers/net/tokenring/proteon.c -@@ -352,9 +352,11 @@ static int __init proteon_init(void) - struct platform_device *pdev; - int i, num = 0, err = 0; - -- proteon_netdev_ops = tms380tr_netdev_ops; -- proteon_netdev_ops.ndo_open = proteon_open; -- proteon_netdev_ops.ndo_stop = tms380tr_close; -+ pax_open_kernel(); -+ memcpy((void *)&proteon_netdev_ops, &tms380tr_netdev_ops, sizeof(tms380tr_netdev_ops)); -+ *(void **)&proteon_netdev_ops.ndo_open = proteon_open; -+ *(void **)&proteon_netdev_ops.ndo_stop = tms380tr_close; -+ pax_close_kernel(); - - err = platform_driver_register(&proteon_driver); - if (err) -diff --git a/drivers/net/tokenring/skisa.c b/drivers/net/tokenring/skisa.c -index ee11e93..c8f19c7 100644 ---- a/drivers/net/tokenring/skisa.c -+++ b/drivers/net/tokenring/skisa.c -@@ -362,9 +362,11 @@ static int __init sk_isa_init(void) - struct platform_device *pdev; - int i, num = 0, err = 0; - -- sk_isa_netdev_ops = tms380tr_netdev_ops; -- sk_isa_netdev_ops.ndo_open = sk_isa_open; -- sk_isa_netdev_ops.ndo_stop = tms380tr_close; -+ pax_open_kernel(); -+ memcpy((void *)&sk_isa_netdev_ops, &tms380tr_netdev_ops, sizeof(tms380tr_netdev_ops)); -+ *(void **)&sk_isa_netdev_ops.ndo_open = sk_isa_open; -+ *(void **)&sk_isa_netdev_ops.ndo_stop = tms380tr_close; -+ pax_close_kernel(); - - err = platform_driver_register(&sk_isa_driver); - if (err) -diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c -index 2d2a688..35f2372 100644 ---- a/drivers/net/usb/hso.c -+++ b/drivers/net/usb/hso.c -@@ -71,7 +71,7 @@ - #include <asm/byteorder.h> - #include <linux/serial_core.h> - #include <linux/serial.h> -- -+#include <asm/local.h> - - #define MOD_AUTHOR "Option Wireless" - #define MOD_DESCRIPTION "USB High Speed Option driver" -@@ -257,7 +257,7 @@ struct hso_serial { - - /* from usb_serial_port */ - struct tty_struct *tty; -- int open_count; -+ local_t open_count; - spinlock_t serial_lock; - - int (*write_data) (struct hso_serial *serial); -@@ -1190,7 +1190,7 @@ static void put_rxbuf_data_and_resubmit_ctrl_urb(struct hso_serial *serial) - struct urb *urb; - - urb = serial->rx_urb[0]; -- if (serial->open_count > 0) { -+ if (local_read(&serial->open_count) > 0) { - count = put_rxbuf_data(urb, serial); - if (count == -1) - return; -@@ -1226,7 +1226,7 @@ static void hso_std_serial_read_bulk_callback(struct urb *urb) - DUMP1(urb->transfer_buffer, urb->actual_length); - - /* Anyone listening? */ -- if (serial->open_count == 0) -+ if (local_read(&serial->open_count) == 0) - return; - - if (status == 0) { -@@ -1311,8 +1311,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp) - spin_unlock_irq(&serial->serial_lock); - - /* check for port already opened, if not set the termios */ -- serial->open_count++; -- if (serial->open_count == 1) { -+ if (local_inc_return(&serial->open_count) == 1) { - serial->rx_state = RX_IDLE; - /* Force default termio settings */ - _hso_serial_set_termios(tty, NULL); -@@ -1324,7 +1323,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp) - result = hso_start_serial_device(serial->parent, GFP_KERNEL); - if (result) { - hso_stop_serial_device(serial->parent); -- serial->open_count--; -+ local_dec(&serial->open_count); - kref_put(&serial->parent->ref, hso_serial_ref_free); - } - } else { -@@ -1361,10 +1360,10 @@ static void hso_serial_close(struct tty_struct *tty, struct file *filp) - - /* reset the rts and dtr */ - /* do the actual close */ -- serial->open_count--; -+ local_dec(&serial->open_count); - -- if (serial->open_count <= 0) { -- serial->open_count = 0; -+ if (local_read(&serial->open_count) <= 0) { -+ local_set(&serial->open_count, 0); - spin_lock_irq(&serial->serial_lock); - if (serial->tty == tty) { - serial->tty->driver_data = NULL; -@@ -1446,7 +1445,7 @@ static void hso_serial_set_termios(struct tty_struct *tty, struct ktermios *old) - - /* the actual setup */ - spin_lock_irqsave(&serial->serial_lock, flags); -- if (serial->open_count) -+ if (local_read(&serial->open_count)) - _hso_serial_set_termios(tty, old); - else - tty->termios = old; -@@ -1905,7 +1904,7 @@ static void intr_callback(struct urb *urb) - D1("Pending read interrupt on port %d\n", i); - spin_lock(&serial->serial_lock); - if (serial->rx_state == RX_IDLE && -- serial->open_count > 0) { -+ local_read(&serial->open_count) > 0) { - /* Setup and send a ctrl req read on - * port i */ - if (!serial->rx_urb_filled[0]) { -@@ -3098,7 +3097,7 @@ static int hso_resume(struct usb_interface *iface) - /* Start all serial ports */ - for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) { - if (serial_table[i] && (serial_table[i]->interface == iface)) { -- if (dev2ser(serial_table[i])->open_count) { -+ if (local_read(&dev2ser(serial_table[i])->open_count)) { - result = - hso_start_serial_device(serial_table[i], GFP_NOIO); - hso_kick_transmit(dev2ser(serial_table[i])); -diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h -index c54b7d37..af1f359 100644 ---- a/drivers/net/wireless/ath/ath.h -+++ b/drivers/net/wireless/ath/ath.h -@@ -119,6 +119,7 @@ struct ath_ops { - void (*write_flush) (void *); - u32 (*rmw)(void *, u32 reg_offset, u32 set, u32 clr); - }; -+typedef struct ath_ops __no_const ath_ops_no_const; - - struct ath_common; - struct ath_bus_ops; -diff --git a/drivers/net/wireless/ath/ath9k/ar9002_mac.c b/drivers/net/wireless/ath/ath9k/ar9002_mac.c -index aa2abaf..5f5152d 100644 ---- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c -+++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c -@@ -183,8 +183,8 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i) - ads->ds_txstatus6 = ads->ds_txstatus7 = 0; - ads->ds_txstatus8 = ads->ds_txstatus9 = 0; - -- ACCESS_ONCE(ads->ds_link) = i->link; -- ACCESS_ONCE(ads->ds_data) = i->buf_addr[0]; -+ ACCESS_ONCE_RW(ads->ds_link) = i->link; -+ ACCESS_ONCE_RW(ads->ds_data) = i->buf_addr[0]; - - ctl1 = i->buf_len[0] | (i->is_last ? 0 : AR_TxMore); - ctl6 = SM(i->keytype, AR_EncrType); -@@ -198,26 +198,26 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i) - - if ((i->is_first || i->is_last) && - i->aggr != AGGR_BUF_MIDDLE && i->aggr != AGGR_BUF_LAST) { -- ACCESS_ONCE(ads->ds_ctl2) = set11nTries(i->rates, 0) -+ ACCESS_ONCE_RW(ads->ds_ctl2) = set11nTries(i->rates, 0) - | set11nTries(i->rates, 1) - | set11nTries(i->rates, 2) - | set11nTries(i->rates, 3) - | (i->dur_update ? AR_DurUpdateEna : 0) - | SM(0, AR_BurstDur); - -- ACCESS_ONCE(ads->ds_ctl3) = set11nRate(i->rates, 0) -+ ACCESS_ONCE_RW(ads->ds_ctl3) = set11nRate(i->rates, 0) - | set11nRate(i->rates, 1) - | set11nRate(i->rates, 2) - | set11nRate(i->rates, 3); - } else { -- ACCESS_ONCE(ads->ds_ctl2) = 0; -- ACCESS_ONCE(ads->ds_ctl3) = 0; -+ ACCESS_ONCE_RW(ads->ds_ctl2) = 0; -+ ACCESS_ONCE_RW(ads->ds_ctl3) = 0; - } - - if (!i->is_first) { -- ACCESS_ONCE(ads->ds_ctl0) = 0; -- ACCESS_ONCE(ads->ds_ctl1) = ctl1; -- ACCESS_ONCE(ads->ds_ctl6) = ctl6; -+ ACCESS_ONCE_RW(ads->ds_ctl0) = 0; -+ ACCESS_ONCE_RW(ads->ds_ctl1) = ctl1; -+ ACCESS_ONCE_RW(ads->ds_ctl6) = ctl6; - return; - } - -@@ -242,7 +242,7 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i) - break; - } - -- ACCESS_ONCE(ads->ds_ctl0) = (i->pkt_len & AR_FrameLen) -+ ACCESS_ONCE_RW(ads->ds_ctl0) = (i->pkt_len & AR_FrameLen) - | (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0) - | SM(i->txpower, AR_XmitPower) - | (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0) -@@ -252,19 +252,19 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i) - | (i->flags & ATH9K_TXDESC_RTSENA ? AR_RTSEnable : - (i->flags & ATH9K_TXDESC_CTSENA ? AR_CTSEnable : 0)); - -- ACCESS_ONCE(ads->ds_ctl1) = ctl1; -- ACCESS_ONCE(ads->ds_ctl6) = ctl6; -+ ACCESS_ONCE_RW(ads->ds_ctl1) = ctl1; -+ ACCESS_ONCE_RW(ads->ds_ctl6) = ctl6; - - if (i->aggr == AGGR_BUF_MIDDLE || i->aggr == AGGR_BUF_LAST) - return; - -- ACCESS_ONCE(ads->ds_ctl4) = set11nPktDurRTSCTS(i->rates, 0) -+ ACCESS_ONCE_RW(ads->ds_ctl4) = set11nPktDurRTSCTS(i->rates, 0) - | set11nPktDurRTSCTS(i->rates, 1); - -- ACCESS_ONCE(ads->ds_ctl5) = set11nPktDurRTSCTS(i->rates, 2) -+ ACCESS_ONCE_RW(ads->ds_ctl5) = set11nPktDurRTSCTS(i->rates, 2) - | set11nPktDurRTSCTS(i->rates, 3); - -- ACCESS_ONCE(ads->ds_ctl7) = set11nRateFlags(i->rates, 0) -+ ACCESS_ONCE_RW(ads->ds_ctl7) = set11nRateFlags(i->rates, 0) - | set11nRateFlags(i->rates, 1) - | set11nRateFlags(i->rates, 2) - | set11nRateFlags(i->rates, 3) -diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c -index a66a13b..0ef399e 100644 ---- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c -+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c -@@ -39,47 +39,47 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i) - (i->qcu << AR_TxQcuNum_S) | desc_len; - - checksum += val; -- ACCESS_ONCE(ads->info) = val; -+ ACCESS_ONCE_RW(ads->info) = val; - - checksum += i->link; -- ACCESS_ONCE(ads->link) = i->link; -+ ACCESS_ONCE_RW(ads->link) = i->link; - - checksum += i->buf_addr[0]; -- ACCESS_ONCE(ads->data0) = i->buf_addr[0]; -+ ACCESS_ONCE_RW(ads->data0) = i->buf_addr[0]; - checksum += i->buf_addr[1]; -- ACCESS_ONCE(ads->data1) = i->buf_addr[1]; -+ ACCESS_ONCE_RW(ads->data1) = i->buf_addr[1]; - checksum += i->buf_addr[2]; -- ACCESS_ONCE(ads->data2) = i->buf_addr[2]; -+ ACCESS_ONCE_RW(ads->data2) = i->buf_addr[2]; - checksum += i->buf_addr[3]; -- ACCESS_ONCE(ads->data3) = i->buf_addr[3]; -+ ACCESS_ONCE_RW(ads->data3) = i->buf_addr[3]; - - checksum += (val = (i->buf_len[0] << AR_BufLen_S) & AR_BufLen); -- ACCESS_ONCE(ads->ctl3) = val; -+ ACCESS_ONCE_RW(ads->ctl3) = val; - checksum += (val = (i->buf_len[1] << AR_BufLen_S) & AR_BufLen); -- ACCESS_ONCE(ads->ctl5) = val; -+ ACCESS_ONCE_RW(ads->ctl5) = val; - checksum += (val = (i->buf_len[2] << AR_BufLen_S) & AR_BufLen); -- ACCESS_ONCE(ads->ctl7) = val; -+ ACCESS_ONCE_RW(ads->ctl7) = val; - checksum += (val = (i->buf_len[3] << AR_BufLen_S) & AR_BufLen); -- ACCESS_ONCE(ads->ctl9) = val; -+ ACCESS_ONCE_RW(ads->ctl9) = val; - - checksum = (u16) (((checksum & 0xffff) + (checksum >> 16)) & 0xffff); -- ACCESS_ONCE(ads->ctl10) = checksum; -+ ACCESS_ONCE_RW(ads->ctl10) = checksum; - - if (i->is_first || i->is_last) { -- ACCESS_ONCE(ads->ctl13) = set11nTries(i->rates, 0) -+ ACCESS_ONCE_RW(ads->ctl13) = set11nTries(i->rates, 0) - | set11nTries(i->rates, 1) - | set11nTries(i->rates, 2) - | set11nTries(i->rates, 3) - | (i->dur_update ? AR_DurUpdateEna : 0) - | SM(0, AR_BurstDur); - -- ACCESS_ONCE(ads->ctl14) = set11nRate(i->rates, 0) -+ ACCESS_ONCE_RW(ads->ctl14) = set11nRate(i->rates, 0) - | set11nRate(i->rates, 1) - | set11nRate(i->rates, 2) - | set11nRate(i->rates, 3); - } else { -- ACCESS_ONCE(ads->ctl13) = 0; -- ACCESS_ONCE(ads->ctl14) = 0; -+ ACCESS_ONCE_RW(ads->ctl13) = 0; -+ ACCESS_ONCE_RW(ads->ctl14) = 0; - } - - ads->ctl20 = 0; -@@ -89,17 +89,17 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i) - - ctl17 = SM(i->keytype, AR_EncrType); - if (!i->is_first) { -- ACCESS_ONCE(ads->ctl11) = 0; -- ACCESS_ONCE(ads->ctl12) = i->is_last ? 0 : AR_TxMore; -- ACCESS_ONCE(ads->ctl15) = 0; -- ACCESS_ONCE(ads->ctl16) = 0; -- ACCESS_ONCE(ads->ctl17) = ctl17; -- ACCESS_ONCE(ads->ctl18) = 0; -- ACCESS_ONCE(ads->ctl19) = 0; -+ ACCESS_ONCE_RW(ads->ctl11) = 0; -+ ACCESS_ONCE_RW(ads->ctl12) = i->is_last ? 0 : AR_TxMore; -+ ACCESS_ONCE_RW(ads->ctl15) = 0; -+ ACCESS_ONCE_RW(ads->ctl16) = 0; -+ ACCESS_ONCE_RW(ads->ctl17) = ctl17; -+ ACCESS_ONCE_RW(ads->ctl18) = 0; -+ ACCESS_ONCE_RW(ads->ctl19) = 0; - return; - } - -- ACCESS_ONCE(ads->ctl11) = (i->pkt_len & AR_FrameLen) -+ ACCESS_ONCE_RW(ads->ctl11) = (i->pkt_len & AR_FrameLen) - | (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0) - | SM(i->txpower, AR_XmitPower) - | (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0) -@@ -135,22 +135,22 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i) - val = (i->flags & ATH9K_TXDESC_PAPRD) >> ATH9K_TXDESC_PAPRD_S; - ctl12 |= SM(val, AR_PAPRDChainMask); - -- ACCESS_ONCE(ads->ctl12) = ctl12; -- ACCESS_ONCE(ads->ctl17) = ctl17; -+ ACCESS_ONCE_RW(ads->ctl12) = ctl12; -+ ACCESS_ONCE_RW(ads->ctl17) = ctl17; - -- ACCESS_ONCE(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0) -+ ACCESS_ONCE_RW(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0) - | set11nPktDurRTSCTS(i->rates, 1); - -- ACCESS_ONCE(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2) -+ ACCESS_ONCE_RW(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2) - | set11nPktDurRTSCTS(i->rates, 3); - -- ACCESS_ONCE(ads->ctl18) = set11nRateFlags(i->rates, 0) -+ ACCESS_ONCE_RW(ads->ctl18) = set11nRateFlags(i->rates, 0) - | set11nRateFlags(i->rates, 1) - | set11nRateFlags(i->rates, 2) - | set11nRateFlags(i->rates, 3) - | SM(i->rtscts_rate, AR_RTSCTSRate); - -- ACCESS_ONCE(ads->ctl19) = AR_Not_Sounding; -+ ACCESS_ONCE_RW(ads->ctl19) = AR_Not_Sounding; - } - - static u16 ar9003_calc_ptr_chksum(struct ar9003_txc *ads) -diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h -index e88f182..4e57f5d 100644 ---- a/drivers/net/wireless/ath/ath9k/hw.h -+++ b/drivers/net/wireless/ath/ath9k/hw.h -@@ -614,7 +614,7 @@ struct ath_hw_private_ops { - - /* ANI */ - void (*ani_cache_ini_regs)(struct ath_hw *ah); --}; -+} __no_const; - - /** - * struct ath_hw_ops - callbacks used by hardware code and driver code -@@ -644,7 +644,7 @@ struct ath_hw_ops { - void (*antdiv_comb_conf_set)(struct ath_hw *ah, - struct ath_hw_antcomb_conf *antconf); - --}; -+} __no_const; - - struct ath_nf_limits { - s16 max; -@@ -664,7 +664,7 @@ enum ath_cal_list { - #define AH_FASTCC 0x4 - - struct ath_hw { -- struct ath_ops reg_ops; -+ ath_ops_no_const reg_ops; - - struct ieee80211_hw *hw; - struct ath_common common; -diff --git a/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_int.h b/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_int.h -index af00e2c..ab04d34 100644 ---- a/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_int.h -+++ b/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_int.h -@@ -545,7 +545,7 @@ struct phy_func_ptr { - void (*carrsuppr)(struct brcms_phy *); - s32 (*rxsigpwr)(struct brcms_phy *, s32); - void (*detach)(struct brcms_phy *); --}; -+} __no_const; - - struct brcms_phy { - struct brcms_phy_pub pubpi_ro; -diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c -index faec404..a5277f1 100644 ---- a/drivers/net/wireless/iwlegacy/3945-mac.c -+++ b/drivers/net/wireless/iwlegacy/3945-mac.c -@@ -3611,7 +3611,9 @@ il3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) - */ - if (il3945_mod_params.disable_hw_scan) { - D_INFO("Disabling hw_scan\n"); -- il3945_mac_ops.hw_scan = NULL; -+ pax_open_kernel(); -+ *(void **)&il3945_mac_ops.hw_scan = NULL; -+ pax_close_kernel(); - } - - D_INFO("*** LOAD DRIVER ***\n"); -diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c -index b7ce6a6..5649756 100644 ---- a/drivers/net/wireless/mac80211_hwsim.c -+++ b/drivers/net/wireless/mac80211_hwsim.c -@@ -1721,9 +1721,11 @@ static int __init init_mac80211_hwsim(void) - return -EINVAL; - - if (fake_hw_scan) { -- mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan; -- mac80211_hwsim_ops.sw_scan_start = NULL; -- mac80211_hwsim_ops.sw_scan_complete = NULL; -+ pax_open_kernel(); -+ *(void **)&mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan; -+ *(void **)&mac80211_hwsim_ops.sw_scan_start = NULL; -+ *(void **)&mac80211_hwsim_ops.sw_scan_complete = NULL; -+ pax_close_kernel(); - } - - spin_lock_init(&hwsim_radio_lock); -diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h -index 35225e9..95e6bf9 100644 ---- a/drivers/net/wireless/mwifiex/main.h -+++ b/drivers/net/wireless/mwifiex/main.h -@@ -537,7 +537,7 @@ struct mwifiex_if_ops { - void (*cleanup_mpa_buf) (struct mwifiex_adapter *); - int (*cmdrsp_complete) (struct mwifiex_adapter *, struct sk_buff *); - int (*event_complete) (struct mwifiex_adapter *, struct sk_buff *); --}; -+} __no_const; - - struct mwifiex_adapter { - u8 iface_type; -diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c -index d66e298..55b0a89 100644 ---- a/drivers/net/wireless/rndis_wlan.c -+++ b/drivers/net/wireless/rndis_wlan.c -@@ -1278,7 +1278,7 @@ static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold) - - netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold); - -- if (rts_threshold < 0 || rts_threshold > 2347) -+ if (rts_threshold > 2347) - rts_threshold = 2347; - - tmp = cpu_to_le32(rts_threshold); -diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h -index c264dfa..08ee30e 100644 ---- a/drivers/net/wireless/rt2x00/rt2x00.h -+++ b/drivers/net/wireless/rt2x00/rt2x00.h -@@ -396,7 +396,7 @@ struct rt2x00_intf { - * for hardware which doesn't support hardware - * sequence counting. - */ -- atomic_t seqno; -+ atomic_unchecked_t seqno; - }; - - static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif) -diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c -index 50f92d5..f3afc41 100644 ---- a/drivers/net/wireless/rt2x00/rt2x00queue.c -+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c -@@ -229,9 +229,9 @@ static void rt2x00queue_create_tx_descriptor_seq(struct rt2x00_dev *rt2x00dev, - * sequence counter given by mac80211. - */ - if (test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags)) -- seqno = atomic_add_return(0x10, &intf->seqno); -+ seqno = atomic_add_return_unchecked(0x10, &intf->seqno); - else -- seqno = atomic_read(&intf->seqno); -+ seqno = atomic_read_unchecked(&intf->seqno); - - hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); - hdr->seq_ctrl |= cpu_to_le16(seqno); -diff --git a/drivers/net/wireless/wl1251/wl1251.h b/drivers/net/wireless/wl1251/wl1251.h -index 9d8f581..0f6589e 100644 ---- a/drivers/net/wireless/wl1251/wl1251.h -+++ b/drivers/net/wireless/wl1251/wl1251.h -@@ -266,7 +266,7 @@ struct wl1251_if_operations { - void (*reset)(struct wl1251 *wl); - void (*enable_irq)(struct wl1251 *wl); - void (*disable_irq)(struct wl1251 *wl); --}; -+} __no_const; - - struct wl1251 { - struct ieee80211_hw *hw; -diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c -index f34b5b2..b5abb9f 100644 ---- a/drivers/oprofile/buffer_sync.c -+++ b/drivers/oprofile/buffer_sync.c -@@ -343,7 +343,7 @@ static void add_data(struct op_entry *entry, struct mm_struct *mm) - if (cookie == NO_COOKIE) - offset = pc; - if (cookie == INVALID_COOKIE) { -- atomic_inc(&oprofile_stats.sample_lost_no_mapping); -+ atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping); - offset = pc; - } - if (cookie != last_cookie) { -@@ -387,14 +387,14 @@ add_sample(struct mm_struct *mm, struct op_sample *s, int in_kernel) - /* add userspace sample */ - - if (!mm) { -- atomic_inc(&oprofile_stats.sample_lost_no_mm); -+ atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mm); - return 0; - } - - cookie = lookup_dcookie(mm, s->eip, &offset); - - if (cookie == INVALID_COOKIE) { -- atomic_inc(&oprofile_stats.sample_lost_no_mapping); -+ atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping); - return 0; - } - -@@ -563,7 +563,7 @@ void sync_buffer(int cpu) - /* ignore backtraces if failed to add a sample */ - if (state == sb_bt_start) { - state = sb_bt_ignore; -- atomic_inc(&oprofile_stats.bt_lost_no_mapping); -+ atomic_inc_unchecked(&oprofile_stats.bt_lost_no_mapping); - } - } - release_mm(mm); -diff --git a/drivers/oprofile/event_buffer.c b/drivers/oprofile/event_buffer.c -index c0cc4e7..44d4e54 100644 ---- a/drivers/oprofile/event_buffer.c -+++ b/drivers/oprofile/event_buffer.c -@@ -53,7 +53,7 @@ void add_event_entry(unsigned long value) - } - - if (buffer_pos == buffer_size) { -- atomic_inc(&oprofile_stats.event_lost_overflow); -+ atomic_inc_unchecked(&oprofile_stats.event_lost_overflow); - return; - } - -diff --git a/drivers/oprofile/oprof.c b/drivers/oprofile/oprof.c -index ed2c3ec..deda85a 100644 ---- a/drivers/oprofile/oprof.c -+++ b/drivers/oprofile/oprof.c -@@ -110,7 +110,7 @@ static void switch_worker(struct work_struct *work) - if (oprofile_ops.switch_events()) - return; - -- atomic_inc(&oprofile_stats.multiplex_counter); -+ atomic_inc_unchecked(&oprofile_stats.multiplex_counter); - start_switch_worker(); - } - -diff --git a/drivers/oprofile/oprofile_stats.c b/drivers/oprofile/oprofile_stats.c -index 917d28e..d62d981 100644 ---- a/drivers/oprofile/oprofile_stats.c -+++ b/drivers/oprofile/oprofile_stats.c -@@ -30,11 +30,11 @@ void oprofile_reset_stats(void) - cpu_buf->sample_invalid_eip = 0; - } - -- atomic_set(&oprofile_stats.sample_lost_no_mm, 0); -- atomic_set(&oprofile_stats.sample_lost_no_mapping, 0); -- atomic_set(&oprofile_stats.event_lost_overflow, 0); -- atomic_set(&oprofile_stats.bt_lost_no_mapping, 0); -- atomic_set(&oprofile_stats.multiplex_counter, 0); -+ atomic_set_unchecked(&oprofile_stats.sample_lost_no_mm, 0); -+ atomic_set_unchecked(&oprofile_stats.sample_lost_no_mapping, 0); -+ atomic_set_unchecked(&oprofile_stats.event_lost_overflow, 0); -+ atomic_set_unchecked(&oprofile_stats.bt_lost_no_mapping, 0); -+ atomic_set_unchecked(&oprofile_stats.multiplex_counter, 0); - } - - -diff --git a/drivers/oprofile/oprofile_stats.h b/drivers/oprofile/oprofile_stats.h -index 38b6fc0..b5cbfce 100644 ---- a/drivers/oprofile/oprofile_stats.h -+++ b/drivers/oprofile/oprofile_stats.h -@@ -13,11 +13,11 @@ - #include <linux/atomic.h> - - struct oprofile_stat_struct { -- atomic_t sample_lost_no_mm; -- atomic_t sample_lost_no_mapping; -- atomic_t bt_lost_no_mapping; -- atomic_t event_lost_overflow; -- atomic_t multiplex_counter; -+ atomic_unchecked_t sample_lost_no_mm; -+ atomic_unchecked_t sample_lost_no_mapping; -+ atomic_unchecked_t bt_lost_no_mapping; -+ atomic_unchecked_t event_lost_overflow; -+ atomic_unchecked_t multiplex_counter; - }; - - extern struct oprofile_stat_struct oprofile_stats; -diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c -index 849357c..b83c1e0 100644 ---- a/drivers/oprofile/oprofilefs.c -+++ b/drivers/oprofile/oprofilefs.c -@@ -185,7 +185,7 @@ static const struct file_operations atomic_ro_fops = { - - - int oprofilefs_create_ro_atomic(struct super_block *sb, struct dentry *root, -- char const *name, atomic_t *val) -+ char const *name, atomic_unchecked_t *val) - { - return __oprofilefs_create_file(sb, root, name, - &atomic_ro_fops, 0444, val); -diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c -index 3f56bc0..707d642 100644 ---- a/drivers/parport/procfs.c -+++ b/drivers/parport/procfs.c -@@ -64,7 +64,7 @@ static int do_active_device(ctl_table *table, int write, - - *ppos += len; - -- return copy_to_user(result, buffer, len) ? -EFAULT : 0; -+ return (len > sizeof buffer || copy_to_user(result, buffer, len)) ? -EFAULT : 0; - } - - #ifdef CONFIG_PARPORT_1284 -@@ -106,7 +106,7 @@ static int do_autoprobe(ctl_table *table, int write, - - *ppos += len; - -- return copy_to_user (result, buffer, len) ? -EFAULT : 0; -+ return (len > sizeof buffer || copy_to_user (result, buffer, len)) ? -EFAULT : 0; - } - #endif /* IEEE1284.3 support. */ - -diff --git a/drivers/pci/hotplug/cpci_hotplug.h b/drivers/pci/hotplug/cpci_hotplug.h -index 9fff878..ad0ad53 100644 ---- a/drivers/pci/hotplug/cpci_hotplug.h -+++ b/drivers/pci/hotplug/cpci_hotplug.h -@@ -59,7 +59,7 @@ struct cpci_hp_controller_ops { - int (*hardware_test) (struct slot* slot, u32 value); - u8 (*get_power) (struct slot* slot); - int (*set_power) (struct slot* slot, int value); --}; -+} __no_const; - - struct cpci_hp_controller { - unsigned int irq; -diff --git a/drivers/pci/hotplug/cpqphp_nvram.c b/drivers/pci/hotplug/cpqphp_nvram.c -index 76ba8a1..20ca857 100644 ---- a/drivers/pci/hotplug/cpqphp_nvram.c -+++ b/drivers/pci/hotplug/cpqphp_nvram.c -@@ -428,9 +428,13 @@ static u32 store_HRT (void __iomem *rom_start) - - void compaq_nvram_init (void __iomem *rom_start) - { -+ -+#ifndef CONFIG_PAX_KERNEXEC - if (rom_start) { - compaq_int15_entry_point = (rom_start + ROM_INT15_PHY_ADDR - ROM_PHY_ADDR); - } -+#endif -+ - dbg("int15 entry = %p\n", compaq_int15_entry_point); - - /* initialize our int15 lock */ -diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c -index b500840..d7159d3 100644 ---- a/drivers/pci/pcie/aspm.c -+++ b/drivers/pci/pcie/aspm.c -@@ -27,9 +27,9 @@ - #define MODULE_PARAM_PREFIX "pcie_aspm." - - /* Note: those are not register definitions */ --#define ASPM_STATE_L0S_UP (1) /* Upstream direction L0s state */ --#define ASPM_STATE_L0S_DW (2) /* Downstream direction L0s state */ --#define ASPM_STATE_L1 (4) /* L1 state */ -+#define ASPM_STATE_L0S_UP (1U) /* Upstream direction L0s state */ -+#define ASPM_STATE_L0S_DW (2U) /* Downstream direction L0s state */ -+#define ASPM_STATE_L1 (4U) /* L1 state */ - #define ASPM_STATE_L0S (ASPM_STATE_L0S_UP | ASPM_STATE_L0S_DW) - #define ASPM_STATE_ALL (ASPM_STATE_L0S | ASPM_STATE_L1) - -diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c -index 5e1ca3c..08082fe 100644 ---- a/drivers/pci/probe.c -+++ b/drivers/pci/probe.c -@@ -215,7 +215,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type, - u16 orig_cmd; - struct pci_bus_region region; - -- mask = type ? PCI_ROM_ADDRESS_MASK : ~0; -+ mask = type ? (u32)PCI_ROM_ADDRESS_MASK : ~0; - - if (!dev->mmio_always_on) { - pci_read_config_word(dev, PCI_COMMAND, &orig_cmd); -diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c -index 27911b5..5b6db88 100644 ---- a/drivers/pci/proc.c -+++ b/drivers/pci/proc.c -@@ -476,7 +476,16 @@ static const struct file_operations proc_bus_pci_dev_operations = { - static int __init pci_proc_init(void) - { - struct pci_dev *dev = NULL; -+ -+#ifdef CONFIG_GRKERNSEC_PROC_ADD -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR, NULL); -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL); -+#endif -+#else - proc_bus_pci_dir = proc_mkdir("bus/pci", NULL); -+#endif - proc_create("devices", 0, proc_bus_pci_dir, - &proc_bus_pci_dev_operations); - proc_initialized = 1; -diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c -index d68c000..f6094ca 100644 ---- a/drivers/platform/x86/thinkpad_acpi.c -+++ b/drivers/platform/x86/thinkpad_acpi.c -@@ -2094,7 +2094,7 @@ static int hotkey_mask_get(void) - return 0; - } - --void static hotkey_mask_warn_incomplete_mask(void) -+static void hotkey_mask_warn_incomplete_mask(void) - { - /* log only what the user can fix... */ - const u32 wantedmask = hotkey_driver_mask & -@@ -2325,11 +2325,6 @@ static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m) - } - } - --static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, -- struct tp_nvram_state *newn, -- const u32 event_mask) --{ -- - #define TPACPI_COMPARE_KEY(__scancode, __member) \ - do { \ - if ((event_mask & (1 << __scancode)) && \ -@@ -2343,36 +2338,42 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, - tpacpi_hotkey_send_key(__scancode); \ - } while (0) - -- void issue_volchange(const unsigned int oldvol, -- const unsigned int newvol) -- { -- unsigned int i = oldvol; -+static void issue_volchange(const unsigned int oldvol, -+ const unsigned int newvol, -+ const u32 event_mask) -+{ -+ unsigned int i = oldvol; - -- while (i > newvol) { -- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); -- i--; -- } -- while (i < newvol) { -- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); -- i++; -- } -+ while (i > newvol) { -+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); -+ i--; - } -+ while (i < newvol) { -+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); -+ i++; -+ } -+} - -- void issue_brightnesschange(const unsigned int oldbrt, -- const unsigned int newbrt) -- { -- unsigned int i = oldbrt; -+static void issue_brightnesschange(const unsigned int oldbrt, -+ const unsigned int newbrt, -+ const u32 event_mask) -+{ -+ unsigned int i = oldbrt; - -- while (i > newbrt) { -- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); -- i--; -- } -- while (i < newbrt) { -- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); -- i++; -- } -+ while (i > newbrt) { -+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); -+ i--; -+ } -+ while (i < newbrt) { -+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); -+ i++; - } -+} - -+static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, -+ struct tp_nvram_state *newn, -+ const u32 event_mask) -+{ - TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); - TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); - TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); -@@ -2406,7 +2407,7 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, - oldn->volume_level != newn->volume_level) { - /* recently muted, or repeated mute keypress, or - * multiple presses ending in mute */ -- issue_volchange(oldn->volume_level, newn->volume_level); -+ issue_volchange(oldn->volume_level, newn->volume_level, event_mask); - TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); - } - } else { -@@ -2416,7 +2417,7 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, - TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); - } - if (oldn->volume_level != newn->volume_level) { -- issue_volchange(oldn->volume_level, newn->volume_level); -+ issue_volchange(oldn->volume_level, newn->volume_level, event_mask); - } else if (oldn->volume_toggle != newn->volume_toggle) { - /* repeated vol up/down keypress at end of scale ? */ - if (newn->volume_level == 0) -@@ -2429,7 +2430,8 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, - /* handle brightness */ - if (oldn->brightness_level != newn->brightness_level) { - issue_brightnesschange(oldn->brightness_level, -- newn->brightness_level); -+ newn->brightness_level, -+ event_mask); - } else if (oldn->brightness_toggle != newn->brightness_toggle) { - /* repeated key presses that didn't change state */ - if (newn->brightness_level == 0) -@@ -2438,10 +2440,10 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, - && !tp_features.bright_unkfw) - TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); - } -+} - - #undef TPACPI_COMPARE_KEY - #undef TPACPI_MAY_SEND_KEY --} - - /* - * Polling driver -diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c -index 769d265..a3a05ca 100644 ---- a/drivers/pnp/pnpbios/bioscalls.c -+++ b/drivers/pnp/pnpbios/bioscalls.c -@@ -58,7 +58,7 @@ do { \ - set_desc_limit(&gdt[(selname) >> 3], (size) - 1); \ - } while(0) - --static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092, -+static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093, - (unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1); - - /* -@@ -95,7 +95,10 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3, - - cpu = get_cpu(); - save_desc_40 = get_cpu_gdt_table(cpu)[0x40 / 8]; -+ -+ pax_open_kernel(); - get_cpu_gdt_table(cpu)[0x40 / 8] = bad_bios_desc; -+ pax_close_kernel(); - - /* On some boxes IRQ's during PnP BIOS calls are deadly. */ - spin_lock_irqsave(&pnp_bios_lock, flags); -@@ -133,7 +136,10 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3, - :"memory"); - spin_unlock_irqrestore(&pnp_bios_lock, flags); - -+ pax_open_kernel(); - get_cpu_gdt_table(cpu)[0x40 / 8] = save_desc_40; -+ pax_close_kernel(); -+ - put_cpu(); - - /* If we get here and this is set then the PnP BIOS faulted on us. */ -@@ -467,7 +473,7 @@ int pnp_bios_read_escd(char *data, u32 nvram_base) - return status; - } - --void pnpbios_calls_init(union pnp_bios_install_struct *header) -+void __init pnpbios_calls_init(union pnp_bios_install_struct *header) - { - int i; - -@@ -475,6 +481,8 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header) - pnp_bios_callpoint.offset = header->fields.pm16offset; - pnp_bios_callpoint.segment = PNP_CS16; - -+ pax_open_kernel(); -+ - for_each_possible_cpu(i) { - struct desc_struct *gdt = get_cpu_gdt_table(i); - if (!gdt) -@@ -486,4 +494,6 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header) - set_desc_base(&gdt[GDT_ENTRY_PNPBIOS_DS], - (unsigned long)__va(header->fields.pm16dseg)); - } -+ -+ pax_close_kernel(); - } -diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c -index b0ecacb..7c9da2e 100644 ---- a/drivers/pnp/resource.c -+++ b/drivers/pnp/resource.c -@@ -360,7 +360,7 @@ int pnp_check_irq(struct pnp_dev *dev, struct resource *res) - return 1; - - /* check if the resource is valid */ -- if (*irq < 0 || *irq > 15) -+ if (*irq > 15) - return 0; - - /* check if the resource is reserved */ -@@ -424,7 +424,7 @@ int pnp_check_dma(struct pnp_dev *dev, struct resource *res) - return 1; - - /* check if the resource is valid */ -- if (*dma < 0 || *dma == 4 || *dma > 7) -+ if (*dma == 4 || *dma > 7) - return 0; - - /* check if the resource is reserved */ -diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c -index 222ccd8..6275fa5 100644 ---- a/drivers/power/bq27x00_battery.c -+++ b/drivers/power/bq27x00_battery.c -@@ -72,7 +72,7 @@ - struct bq27x00_device_info; - struct bq27x00_access_methods { - int (*read)(struct bq27x00_device_info *di, u8 reg, bool single); --}; -+} __no_const; - - enum bq27x00_chip { BQ27000, BQ27500 }; - -diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c -index 4c5b053..104263e 100644 ---- a/drivers/regulator/max8660.c -+++ b/drivers/regulator/max8660.c -@@ -385,8 +385,10 @@ static int __devinit max8660_probe(struct i2c_client *client, - max8660->shadow_regs[MAX8660_OVER1] = 5; - } else { - /* Otherwise devices can be toggled via software */ -- max8660_dcdc_ops.enable = max8660_dcdc_enable; -- max8660_dcdc_ops.disable = max8660_dcdc_disable; -+ pax_open_kernel(); -+ *(void **)&max8660_dcdc_ops.enable = max8660_dcdc_enable; -+ *(void **)&max8660_dcdc_ops.disable = max8660_dcdc_disable; -+ pax_close_kernel(); - } - - /* -diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c -index 845aa22..99ec402 100644 ---- a/drivers/regulator/mc13892-regulator.c -+++ b/drivers/regulator/mc13892-regulator.c -@@ -574,10 +574,12 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev) - } - mc13xxx_unlock(mc13892); - -- mc13892_regulators[MC13892_VCAM].desc.ops->set_mode -+ pax_open_kernel(); -+ *(void **)&mc13892_regulators[MC13892_VCAM].desc.ops->set_mode - = mc13892_vcam_set_mode; -- mc13892_regulators[MC13892_VCAM].desc.ops->get_mode -+ *(void **)&mc13892_regulators[MC13892_VCAM].desc.ops->get_mode - = mc13892_vcam_get_mode; -+ pax_close_kernel(); - - mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13892_regulators, - ARRAY_SIZE(mc13892_regulators)); -diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c -index cace6d3..f623fda 100644 ---- a/drivers/rtc/rtc-dev.c -+++ b/drivers/rtc/rtc-dev.c -@@ -14,6 +14,7 @@ - #include <linux/module.h> - #include <linux/rtc.h> - #include <linux/sched.h> -+#include <linux/grsecurity.h> - #include "rtc-core.h" - - static dev_t rtc_devt; -@@ -345,6 +346,8 @@ static long rtc_dev_ioctl(struct file *file, - if (copy_from_user(&tm, uarg, sizeof(tm))) - return -EFAULT; - -+ gr_log_timechange(); -+ - return rtc_set_time(rtc, &tm); - - case RTC_PIE_ON: -diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h -index 3fcf627..f334910 100644 ---- a/drivers/scsi/aacraid/aacraid.h -+++ b/drivers/scsi/aacraid/aacraid.h -@@ -492,7 +492,7 @@ struct adapter_ops - int (*adapter_scsi)(struct fib * fib, struct scsi_cmnd * cmd); - /* Administrative operations */ - int (*adapter_comm)(struct aac_dev * dev, int comm); --}; -+} __no_const; - - /* - * Define which interrupt handler needs to be installed -diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c -index 0d279c44..3d25a97 100644 ---- a/drivers/scsi/aacraid/linit.c -+++ b/drivers/scsi/aacraid/linit.c -@@ -93,7 +93,7 @@ static DECLARE_PCI_DEVICE_TABLE(aac_pci_tbl) = { - #elif defined(__devinitconst) - static const struct pci_device_id aac_pci_tbl[] __devinitconst = { - #else --static const struct pci_device_id aac_pci_tbl[] __devinitdata = { -+static const struct pci_device_id aac_pci_tbl[] __devinitconst = { - #endif - { 0x1028, 0x0001, 0x1028, 0x0001, 0, 0, 0 }, /* PERC 2/Si (Iguana/PERC2Si) */ - { 0x1028, 0x0002, 0x1028, 0x0002, 0, 0, 1 }, /* PERC 3/Di (Opal/PERC3Di) */ -diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c -index ff80552..1c4120c 100644 ---- a/drivers/scsi/aic94xx/aic94xx_init.c -+++ b/drivers/scsi/aic94xx/aic94xx_init.c -@@ -1012,7 +1012,7 @@ static struct sas_domain_function_template aic94xx_transport_functions = { - .lldd_ata_set_dmamode = asd_set_dmamode, - }; - --static const struct pci_device_id aic94xx_pci_table[] __devinitdata = { -+static const struct pci_device_id aic94xx_pci_table[] __devinitconst = { - {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1}, - {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1}, - {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1}, -diff --git a/drivers/scsi/bfa/bfa.h b/drivers/scsi/bfa/bfa.h -index 4ad7e36..d004679 100644 ---- a/drivers/scsi/bfa/bfa.h -+++ b/drivers/scsi/bfa/bfa.h -@@ -196,7 +196,7 @@ struct bfa_hwif_s { - u32 *end); - int cpe_vec_q0; - int rme_vec_q0; --}; -+} __no_const; - typedef void (*bfa_cb_iocfc_t) (void *cbarg, enum bfa_status status); - - struct bfa_faa_cbfn_s { -diff --git a/drivers/scsi/bfa/bfa_fcpim.c b/drivers/scsi/bfa/bfa_fcpim.c -index f0f80e2..8ec946b 100644 ---- a/drivers/scsi/bfa/bfa_fcpim.c -+++ b/drivers/scsi/bfa/bfa_fcpim.c -@@ -3715,7 +3715,7 @@ bfa_fcp_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg, - - bfa_iotag_attach(fcp); - -- fcp->itn_arr = (struct bfa_itn_s *) bfa_mem_kva_curp(fcp); -+ fcp->itn_arr = (bfa_itn_s_no_const *) bfa_mem_kva_curp(fcp); - bfa_mem_kva_curp(fcp) = (u8 *)fcp->itn_arr + - (fcp->num_itns * sizeof(struct bfa_itn_s)); - memset(fcp->itn_arr, 0, -@@ -3773,7 +3773,7 @@ bfa_itn_create(struct bfa_s *bfa, struct bfa_rport_s *rport, - void (*isr)(struct bfa_s *bfa, struct bfi_msg_s *m)) - { - struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa); -- struct bfa_itn_s *itn; -+ bfa_itn_s_no_const *itn; - - itn = BFA_ITN_FROM_TAG(fcp, rport->rport_tag); - itn->isr = isr; -diff --git a/drivers/scsi/bfa/bfa_fcpim.h b/drivers/scsi/bfa/bfa_fcpim.h -index 36f26da..38a34a8 100644 ---- a/drivers/scsi/bfa/bfa_fcpim.h -+++ b/drivers/scsi/bfa/bfa_fcpim.h -@@ -37,6 +37,7 @@ struct bfa_iotag_s { - struct bfa_itn_s { - bfa_isr_func_t isr; - }; -+typedef struct bfa_itn_s __no_const bfa_itn_s_no_const; - - void bfa_itn_create(struct bfa_s *bfa, struct bfa_rport_s *rport, - void (*isr)(struct bfa_s *bfa, struct bfi_msg_s *m)); -@@ -147,7 +148,7 @@ struct bfa_fcp_mod_s { - struct list_head iotag_tio_free_q; /* free IO resources */ - struct list_head iotag_unused_q; /* unused IO resources*/ - struct bfa_iotag_s *iotag_arr; -- struct bfa_itn_s *itn_arr; -+ bfa_itn_s_no_const *itn_arr; - int num_ioim_reqs; - int num_fwtio_reqs; - int num_itns; -diff --git a/drivers/scsi/bfa/bfa_ioc.h b/drivers/scsi/bfa/bfa_ioc.h -index 1a99d4b..e85d64b 100644 ---- a/drivers/scsi/bfa/bfa_ioc.h -+++ b/drivers/scsi/bfa/bfa_ioc.h -@@ -258,7 +258,7 @@ struct bfa_ioc_cbfn_s { - bfa_ioc_disable_cbfn_t disable_cbfn; - bfa_ioc_hbfail_cbfn_t hbfail_cbfn; - bfa_ioc_reset_cbfn_t reset_cbfn; --}; -+} __no_const; - - /* - * IOC event notification mechanism. -@@ -346,7 +346,7 @@ struct bfa_ioc_hwif_s { - void (*ioc_sync_ack) (struct bfa_ioc_s *ioc); - bfa_boolean_t (*ioc_sync_complete) (struct bfa_ioc_s *ioc); - bfa_boolean_t (*ioc_lpu_read_stat) (struct bfa_ioc_s *ioc); --}; -+} __no_const; - - /* - * Queue element to wait for room in request queue. FIFO order is -diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c -index a3a056a..b9bbc2f 100644 ---- a/drivers/scsi/hosts.c -+++ b/drivers/scsi/hosts.c -@@ -42,7 +42,7 @@ - #include "scsi_logging.h" - - --static atomic_t scsi_host_next_hn; /* host_no for next new host */ -+static atomic_unchecked_t scsi_host_next_hn; /* host_no for next new host */ - - - static void scsi_host_cls_release(struct device *dev) -@@ -360,7 +360,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize) - * subtract one because we increment first then return, but we need to - * know what the next host number was before increment - */ -- shost->host_no = atomic_inc_return(&scsi_host_next_hn) - 1; -+ shost->host_no = atomic_inc_return_unchecked(&scsi_host_next_hn) - 1; - shost->dma_channel = 0xff; - - /* These three are default values which can be overridden */ -diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c -index 500e20d..ebd3059 100644 ---- a/drivers/scsi/hpsa.c -+++ b/drivers/scsi/hpsa.c -@@ -521,7 +521,7 @@ static inline u32 next_command(struct ctlr_info *h) - u32 a; - - if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant))) -- return h->access.command_completed(h); -+ return h->access->command_completed(h); - - if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) { - a = *(h->reply_pool_head); /* Next cmd in ring buffer */ -@@ -3002,7 +3002,7 @@ static void start_io(struct ctlr_info *h) - while (!list_empty(&h->reqQ)) { - c = list_entry(h->reqQ.next, struct CommandList, list); - /* can't do anything if fifo is full */ -- if ((h->access.fifo_full(h))) { -+ if ((h->access->fifo_full(h))) { - dev_warn(&h->pdev->dev, "fifo full\n"); - break; - } -@@ -3012,7 +3012,7 @@ static void start_io(struct ctlr_info *h) - h->Qdepth--; - - /* Tell the controller execute command */ -- h->access.submit_command(h, c); -+ h->access->submit_command(h, c); - - /* Put job onto the completed Q */ - addQ(&h->cmpQ, c); -@@ -3021,17 +3021,17 @@ static void start_io(struct ctlr_info *h) - - static inline unsigned long get_next_completion(struct ctlr_info *h) - { -- return h->access.command_completed(h); -+ return h->access->command_completed(h); - } - - static inline bool interrupt_pending(struct ctlr_info *h) - { -- return h->access.intr_pending(h); -+ return h->access->intr_pending(h); - } - - static inline long interrupt_not_for_us(struct ctlr_info *h) - { -- return (h->access.intr_pending(h) == 0) || -+ return (h->access->intr_pending(h) == 0) || - (h->interrupts_enabled == 0); - } - -@@ -3930,7 +3930,7 @@ static int __devinit hpsa_pci_init(struct ctlr_info *h) - if (prod_index < 0) - return -ENODEV; - h->product_name = products[prod_index].product_name; -- h->access = *(products[prod_index].access); -+ h->access = products[prod_index].access; - - if (hpsa_board_disabled(h->pdev)) { - dev_warn(&h->pdev->dev, "controller appears to be disabled\n"); -@@ -4175,7 +4175,7 @@ static void controller_lockup_detected(struct ctlr_info *h) - - assert_spin_locked(&lockup_detector_lock); - remove_ctlr_from_lockup_detector_list(h); -- h->access.set_intr_mask(h, HPSA_INTR_OFF); -+ h->access->set_intr_mask(h, HPSA_INTR_OFF); - spin_lock_irqsave(&h->lock, flags); - h->lockup_detected = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET); - spin_unlock_irqrestore(&h->lock, flags); -@@ -4355,7 +4355,7 @@ reinit_after_soft_reset: - } - - /* make sure the board interrupts are off */ -- h->access.set_intr_mask(h, HPSA_INTR_OFF); -+ h->access->set_intr_mask(h, HPSA_INTR_OFF); - - if (hpsa_request_irq(h, do_hpsa_intr_msi, do_hpsa_intr_intx)) - goto clean2; -@@ -4389,7 +4389,7 @@ reinit_after_soft_reset: - * fake ones to scoop up any residual completions. - */ - spin_lock_irqsave(&h->lock, flags); -- h->access.set_intr_mask(h, HPSA_INTR_OFF); -+ h->access->set_intr_mask(h, HPSA_INTR_OFF); - spin_unlock_irqrestore(&h->lock, flags); - free_irq(h->intr[h->intr_mode], h); - rc = hpsa_request_irq(h, hpsa_msix_discard_completions, -@@ -4408,9 +4408,9 @@ reinit_after_soft_reset: - dev_info(&h->pdev->dev, "Board READY.\n"); - dev_info(&h->pdev->dev, - "Waiting for stale completions to drain.\n"); -- h->access.set_intr_mask(h, HPSA_INTR_ON); -+ h->access->set_intr_mask(h, HPSA_INTR_ON); - msleep(10000); -- h->access.set_intr_mask(h, HPSA_INTR_OFF); -+ h->access->set_intr_mask(h, HPSA_INTR_OFF); - - rc = controller_reset_failed(h->cfgtable); - if (rc) -@@ -4431,7 +4431,7 @@ reinit_after_soft_reset: - } - - /* Turn the interrupts on so we can service requests */ -- h->access.set_intr_mask(h, HPSA_INTR_ON); -+ h->access->set_intr_mask(h, HPSA_INTR_ON); - - hpsa_hba_inquiry(h); - hpsa_register_scsi(h); /* hook ourselves into SCSI subsystem */ -@@ -4483,7 +4483,7 @@ static void hpsa_shutdown(struct pci_dev *pdev) - * To write all data in the battery backed cache to disks - */ - hpsa_flush_cache(h); -- h->access.set_intr_mask(h, HPSA_INTR_OFF); -+ h->access->set_intr_mask(h, HPSA_INTR_OFF); - free_irq(h->intr[h->intr_mode], h); - #ifdef CONFIG_PCI_MSI - if (h->msix_vector) -@@ -4657,7 +4657,7 @@ static __devinit void hpsa_enter_performant_mode(struct ctlr_info *h, - return; - } - /* Change the access methods to the performant access methods */ -- h->access = SA5_performant_access; -+ h->access = &SA5_performant_access; - h->transMethod = CFGTBL_Trans_Performant; - } - -diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h -index 7b28d54..952f23a 100644 ---- a/drivers/scsi/hpsa.h -+++ b/drivers/scsi/hpsa.h -@@ -72,7 +72,7 @@ struct ctlr_info { - unsigned int msix_vector; - unsigned int msi_vector; - int intr_mode; /* either PERF_MODE_INT or SIMPLE_MODE_INT */ -- struct access_method access; -+ struct access_method *access; - - /* queue and queue Info */ - struct list_head reqQ; -diff --git a/drivers/scsi/ips.h b/drivers/scsi/ips.h -index f2df059..a3a9930 100644 ---- a/drivers/scsi/ips.h -+++ b/drivers/scsi/ips.h -@@ -1027,7 +1027,7 @@ typedef struct { - int (*intr)(struct ips_ha *); - void (*enableint)(struct ips_ha *); - uint32_t (*statupd)(struct ips_ha *); --} ips_hw_func_t; -+} __no_const ips_hw_func_t; - - typedef struct ips_ha { - uint8_t ha_id[IPS_MAX_CHANNELS+1]; -diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c -index aceffad..c35c08d 100644 ---- a/drivers/scsi/libfc/fc_exch.c -+++ b/drivers/scsi/libfc/fc_exch.c -@@ -105,12 +105,12 @@ struct fc_exch_mgr { - * all together if not used XXX - */ - struct { -- atomic_t no_free_exch; -- atomic_t no_free_exch_xid; -- atomic_t xid_not_found; -- atomic_t xid_busy; -- atomic_t seq_not_found; -- atomic_t non_bls_resp; -+ atomic_unchecked_t no_free_exch; -+ atomic_unchecked_t no_free_exch_xid; -+ atomic_unchecked_t xid_not_found; -+ atomic_unchecked_t xid_busy; -+ atomic_unchecked_t seq_not_found; -+ atomic_unchecked_t non_bls_resp; - } stats; - }; - -@@ -719,7 +719,7 @@ static struct fc_exch *fc_exch_em_alloc(struct fc_lport *lport, - /* allocate memory for exchange */ - ep = mempool_alloc(mp->ep_pool, GFP_ATOMIC); - if (!ep) { -- atomic_inc(&mp->stats.no_free_exch); -+ atomic_inc_unchecked(&mp->stats.no_free_exch); - goto out; - } - memset(ep, 0, sizeof(*ep)); -@@ -780,7 +780,7 @@ out: - return ep; - err: - spin_unlock_bh(&pool->lock); -- atomic_inc(&mp->stats.no_free_exch_xid); -+ atomic_inc_unchecked(&mp->stats.no_free_exch_xid); - mempool_free(ep, mp->ep_pool); - return NULL; - } -@@ -923,7 +923,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport, - xid = ntohs(fh->fh_ox_id); /* we originated exch */ - ep = fc_exch_find(mp, xid); - if (!ep) { -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - reject = FC_RJT_OX_ID; - goto out; - } -@@ -953,7 +953,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport, - ep = fc_exch_find(mp, xid); - if ((f_ctl & FC_FC_FIRST_SEQ) && fc_sof_is_init(fr_sof(fp))) { - if (ep) { -- atomic_inc(&mp->stats.xid_busy); -+ atomic_inc_unchecked(&mp->stats.xid_busy); - reject = FC_RJT_RX_ID; - goto rel; - } -@@ -964,7 +964,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport, - } - xid = ep->xid; /* get our XID */ - } else if (!ep) { -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - reject = FC_RJT_RX_ID; /* XID not found */ - goto out; - } -@@ -981,7 +981,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport, - } else { - sp = &ep->seq; - if (sp->id != fh->fh_seq_id) { -- atomic_inc(&mp->stats.seq_not_found); -+ atomic_inc_unchecked(&mp->stats.seq_not_found); - if (f_ctl & FC_FC_END_SEQ) { - /* - * Update sequence_id based on incoming last -@@ -1431,22 +1431,22 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp) - - ep = fc_exch_find(mp, ntohs(fh->fh_ox_id)); - if (!ep) { -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - goto out; - } - if (ep->esb_stat & ESB_ST_COMPLETE) { -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - goto rel; - } - if (ep->rxid == FC_XID_UNKNOWN) - ep->rxid = ntohs(fh->fh_rx_id); - if (ep->sid != 0 && ep->sid != ntoh24(fh->fh_d_id)) { -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - goto rel; - } - if (ep->did != ntoh24(fh->fh_s_id) && - ep->did != FC_FID_FLOGI) { -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - goto rel; - } - sof = fr_sof(fp); -@@ -1455,7 +1455,7 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp) - sp->ssb_stat |= SSB_ST_RESP; - sp->id = fh->fh_seq_id; - } else if (sp->id != fh->fh_seq_id) { -- atomic_inc(&mp->stats.seq_not_found); -+ atomic_inc_unchecked(&mp->stats.seq_not_found); - goto rel; - } - -@@ -1519,9 +1519,9 @@ static void fc_exch_recv_resp(struct fc_exch_mgr *mp, struct fc_frame *fp) - sp = fc_seq_lookup_orig(mp, fp); /* doesn't hold sequence */ - - if (!sp) -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - else -- atomic_inc(&mp->stats.non_bls_resp); -+ atomic_inc_unchecked(&mp->stats.non_bls_resp); - - fc_frame_free(fp); - } -diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c -index 441d88a..689ad71 100644 ---- a/drivers/scsi/libsas/sas_ata.c -+++ b/drivers/scsi/libsas/sas_ata.c -@@ -529,7 +529,7 @@ static struct ata_port_operations sas_sata_ops = { - .postreset = ata_std_postreset, - .error_handler = ata_std_error_handler, - .post_internal_cmd = sas_ata_post_internal, -- .qc_defer = ata_std_qc_defer, -+ .qc_defer = ata_std_qc_defer, - .qc_prep = ata_noop_qc_prep, - .qc_issue = sas_ata_qc_issue, - .qc_fill_rtf = sas_ata_qc_fill_rtf, -diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h -index 3a1ffdd..8eb7c71 100644 ---- a/drivers/scsi/lpfc/lpfc.h -+++ b/drivers/scsi/lpfc/lpfc.h -@@ -413,7 +413,7 @@ struct lpfc_vport { - struct dentry *debug_nodelist; - struct dentry *vport_debugfs_root; - struct lpfc_debugfs_trc *disc_trc; -- atomic_t disc_trc_cnt; -+ atomic_unchecked_t disc_trc_cnt; - #endif - uint8_t stat_data_enabled; - uint8_t stat_data_blocked; -@@ -826,8 +826,8 @@ struct lpfc_hba { - struct timer_list fabric_block_timer; - unsigned long bit_flags; - #define FABRIC_COMANDS_BLOCKED 0 -- atomic_t num_rsrc_err; -- atomic_t num_cmd_success; -+ atomic_unchecked_t num_rsrc_err; -+ atomic_unchecked_t num_cmd_success; - unsigned long last_rsrc_error_time; - unsigned long last_ramp_down_time; - unsigned long last_ramp_up_time; -@@ -863,7 +863,7 @@ struct lpfc_hba { - - struct dentry *debug_slow_ring_trc; - struct lpfc_debugfs_trc *slow_ring_trc; -- atomic_t slow_ring_trc_cnt; -+ atomic_unchecked_t slow_ring_trc_cnt; - /* iDiag debugfs sub-directory */ - struct dentry *idiag_root; - struct dentry *idiag_pci_cfg; -diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c -index af04b0d..8f1a97e 100644 ---- a/drivers/scsi/lpfc/lpfc_debugfs.c -+++ b/drivers/scsi/lpfc/lpfc_debugfs.c -@@ -106,7 +106,7 @@ MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, - - #include <linux/debugfs.h> - --static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); -+static atomic_unchecked_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); - static unsigned long lpfc_debugfs_start_time = 0L; - - /* iDiag */ -@@ -147,7 +147,7 @@ lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) - lpfc_debugfs_enable = 0; - - len = 0; -- index = (atomic_read(&vport->disc_trc_cnt) + 1) & -+ index = (atomic_read_unchecked(&vport->disc_trc_cnt) + 1) & - (lpfc_debugfs_max_disc_trc - 1); - for (i = index; i < lpfc_debugfs_max_disc_trc; i++) { - dtp = vport->disc_trc + i; -@@ -213,7 +213,7 @@ lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) - lpfc_debugfs_enable = 0; - - len = 0; -- index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) & -+ index = (atomic_read_unchecked(&phba->slow_ring_trc_cnt) + 1) & - (lpfc_debugfs_max_slow_ring_trc - 1); - for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) { - dtp = phba->slow_ring_trc + i; -@@ -636,14 +636,14 @@ lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, - !vport || !vport->disc_trc) - return; - -- index = atomic_inc_return(&vport->disc_trc_cnt) & -+ index = atomic_inc_return_unchecked(&vport->disc_trc_cnt) & - (lpfc_debugfs_max_disc_trc - 1); - dtp = vport->disc_trc + index; - dtp->fmt = fmt; - dtp->data1 = data1; - dtp->data2 = data2; - dtp->data3 = data3; -- dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); -+ dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt); - dtp->jif = jiffies; - #endif - return; -@@ -674,14 +674,14 @@ lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, - !phba || !phba->slow_ring_trc) - return; - -- index = atomic_inc_return(&phba->slow_ring_trc_cnt) & -+ index = atomic_inc_return_unchecked(&phba->slow_ring_trc_cnt) & - (lpfc_debugfs_max_slow_ring_trc - 1); - dtp = phba->slow_ring_trc + index; - dtp->fmt = fmt; - dtp->data1 = data1; - dtp->data2 = data2; - dtp->data3 = data3; -- dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); -+ dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt); - dtp->jif = jiffies; - #endif - return; -@@ -4090,7 +4090,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) - "slow_ring buffer\n"); - goto debug_failed; - } -- atomic_set(&phba->slow_ring_trc_cnt, 0); -+ atomic_set_unchecked(&phba->slow_ring_trc_cnt, 0); - memset(phba->slow_ring_trc, 0, - (sizeof(struct lpfc_debugfs_trc) * - lpfc_debugfs_max_slow_ring_trc)); -@@ -4136,7 +4136,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) - "buffer\n"); - goto debug_failed; - } -- atomic_set(&vport->disc_trc_cnt, 0); -+ atomic_set_unchecked(&vport->disc_trc_cnt, 0); - - snprintf(name, sizeof(name), "discovery_trace"); - vport->debug_disc_trc = -diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c -index 9598fdc..7e9f3d9 100644 ---- a/drivers/scsi/lpfc/lpfc_init.c -+++ b/drivers/scsi/lpfc/lpfc_init.c -@@ -10266,8 +10266,10 @@ lpfc_init(void) - "misc_register returned with status %d", error); - - if (lpfc_enable_npiv) { -- lpfc_transport_functions.vport_create = lpfc_vport_create; -- lpfc_transport_functions.vport_delete = lpfc_vport_delete; -+ pax_open_kernel(); -+ *(void **)&lpfc_transport_functions.vport_create = lpfc_vport_create; -+ *(void **)&lpfc_transport_functions.vport_delete = lpfc_vport_delete; -+ pax_close_kernel(); - } - lpfc_transport_template = - fc_attach_transport(&lpfc_transport_functions); -diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c -index 88f3a83..686d3fa 100644 ---- a/drivers/scsi/lpfc/lpfc_scsi.c -+++ b/drivers/scsi/lpfc/lpfc_scsi.c -@@ -311,7 +311,7 @@ lpfc_rampdown_queue_depth(struct lpfc_hba *phba) - uint32_t evt_posted; - - spin_lock_irqsave(&phba->hbalock, flags); -- atomic_inc(&phba->num_rsrc_err); -+ atomic_inc_unchecked(&phba->num_rsrc_err); - phba->last_rsrc_error_time = jiffies; - - if ((phba->last_ramp_down_time + QUEUE_RAMP_DOWN_INTERVAL) > jiffies) { -@@ -352,7 +352,7 @@ lpfc_rampup_queue_depth(struct lpfc_vport *vport, - unsigned long flags; - struct lpfc_hba *phba = vport->phba; - uint32_t evt_posted; -- atomic_inc(&phba->num_cmd_success); -+ atomic_inc_unchecked(&phba->num_cmd_success); - - if (vport->cfg_lun_queue_depth <= queue_depth) - return; -@@ -396,8 +396,8 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba) - unsigned long num_rsrc_err, num_cmd_success; - int i; - -- num_rsrc_err = atomic_read(&phba->num_rsrc_err); -- num_cmd_success = atomic_read(&phba->num_cmd_success); -+ num_rsrc_err = atomic_read_unchecked(&phba->num_rsrc_err); -+ num_cmd_success = atomic_read_unchecked(&phba->num_cmd_success); - - vports = lpfc_create_vport_work_array(phba); - if (vports != NULL) -@@ -417,8 +417,8 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba) - } - } - lpfc_destroy_vport_work_array(phba, vports); -- atomic_set(&phba->num_rsrc_err, 0); -- atomic_set(&phba->num_cmd_success, 0); -+ atomic_set_unchecked(&phba->num_rsrc_err, 0); -+ atomic_set_unchecked(&phba->num_cmd_success, 0); - } - - /** -@@ -452,8 +452,8 @@ lpfc_ramp_up_queue_handler(struct lpfc_hba *phba) - } - } - lpfc_destroy_vport_work_array(phba, vports); -- atomic_set(&phba->num_rsrc_err, 0); -- atomic_set(&phba->num_cmd_success, 0); -+ atomic_set_unchecked(&phba->num_rsrc_err, 0); -+ atomic_set_unchecked(&phba->num_cmd_success, 0); - } - - /** -diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c -index ea8a0b4..812a124 100644 ---- a/drivers/scsi/pmcraid.c -+++ b/drivers/scsi/pmcraid.c -@@ -200,8 +200,8 @@ static int pmcraid_slave_alloc(struct scsi_device *scsi_dev) - res->scsi_dev = scsi_dev; - scsi_dev->hostdata = res; - res->change_detected = 0; -- atomic_set(&res->read_failures, 0); -- atomic_set(&res->write_failures, 0); -+ atomic_set_unchecked(&res->read_failures, 0); -+ atomic_set_unchecked(&res->write_failures, 0); - rc = 0; - } - spin_unlock_irqrestore(&pinstance->resource_lock, lock_flags); -@@ -2676,9 +2676,9 @@ static int pmcraid_error_handler(struct pmcraid_cmd *cmd) - - /* If this was a SCSI read/write command keep count of errors */ - if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_READ_CMD) -- atomic_inc(&res->read_failures); -+ atomic_inc_unchecked(&res->read_failures); - else if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_WRITE_CMD) -- atomic_inc(&res->write_failures); -+ atomic_inc_unchecked(&res->write_failures); - - if (!RES_IS_GSCSI(res->cfg_entry) && - masked_ioasc != PMCRAID_IOASC_HW_DEVICE_BUS_STATUS_ERROR) { -@@ -3534,7 +3534,7 @@ static int pmcraid_queuecommand_lck( - * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses - * hrrq_id assigned here in queuecommand - */ -- ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) % -+ ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) % - pinstance->num_hrrq; - cmd->cmd_done = pmcraid_io_done; - -@@ -3859,7 +3859,7 @@ static long pmcraid_ioctl_passthrough( - * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses - * hrrq_id assigned here in queuecommand - */ -- ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) % -+ ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) % - pinstance->num_hrrq; - - if (request_size) { -@@ -4497,7 +4497,7 @@ static void pmcraid_worker_function(struct work_struct *workp) - - pinstance = container_of(workp, struct pmcraid_instance, worker_q); - /* add resources only after host is added into system */ -- if (!atomic_read(&pinstance->expose_resources)) -+ if (!atomic_read_unchecked(&pinstance->expose_resources)) - return; - - fw_version = be16_to_cpu(pinstance->inq_data->fw_version); -@@ -5331,8 +5331,8 @@ static int __devinit pmcraid_init_instance( - init_waitqueue_head(&pinstance->reset_wait_q); - - atomic_set(&pinstance->outstanding_cmds, 0); -- atomic_set(&pinstance->last_message_id, 0); -- atomic_set(&pinstance->expose_resources, 0); -+ atomic_set_unchecked(&pinstance->last_message_id, 0); -+ atomic_set_unchecked(&pinstance->expose_resources, 0); - - INIT_LIST_HEAD(&pinstance->free_res_q); - INIT_LIST_HEAD(&pinstance->used_res_q); -@@ -6047,7 +6047,7 @@ static int __devinit pmcraid_probe( - /* Schedule worker thread to handle CCN and take care of adding and - * removing devices to OS - */ -- atomic_set(&pinstance->expose_resources, 1); -+ atomic_set_unchecked(&pinstance->expose_resources, 1); - schedule_work(&pinstance->worker_q); - return rc; - -diff --git a/drivers/scsi/pmcraid.h b/drivers/scsi/pmcraid.h -index e1d150f..6c6df44 100644 ---- a/drivers/scsi/pmcraid.h -+++ b/drivers/scsi/pmcraid.h -@@ -748,7 +748,7 @@ struct pmcraid_instance { - struct pmcraid_isr_param hrrq_vector[PMCRAID_NUM_MSIX_VECTORS]; - - /* Message id as filled in last fired IOARCB, used to identify HRRQ */ -- atomic_t last_message_id; -+ atomic_unchecked_t last_message_id; - - /* configuration table */ - struct pmcraid_config_table *cfg_table; -@@ -777,7 +777,7 @@ struct pmcraid_instance { - atomic_t outstanding_cmds; - - /* should add/delete resources to mid-layer now ?*/ -- atomic_t expose_resources; -+ atomic_unchecked_t expose_resources; - - - -@@ -813,8 +813,8 @@ struct pmcraid_resource_entry { - struct pmcraid_config_table_entry_ext cfg_entry_ext; - }; - struct scsi_device *scsi_dev; /* Link scsi_device structure */ -- atomic_t read_failures; /* count of failed READ commands */ -- atomic_t write_failures; /* count of failed WRITE commands */ -+ atomic_unchecked_t read_failures; /* count of failed READ commands */ -+ atomic_unchecked_t write_failures; /* count of failed WRITE commands */ - - /* To indicate add/delete/modify during CCN */ - u8 change_detected; -diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h -index a244303..6015eb7 100644 ---- a/drivers/scsi/qla2xxx/qla_def.h -+++ b/drivers/scsi/qla2xxx/qla_def.h -@@ -2264,7 +2264,7 @@ struct isp_operations { - int (*start_scsi) (srb_t *); - int (*abort_isp) (struct scsi_qla_host *); - int (*iospace_config)(struct qla_hw_data*); --}; -+} __no_const; - - /* MSI-X Support *************************************************************/ - -diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h -index 7f2492e..5113877 100644 ---- a/drivers/scsi/qla4xxx/ql4_def.h -+++ b/drivers/scsi/qla4xxx/ql4_def.h -@@ -268,7 +268,7 @@ struct ddb_entry { - * (4000 only) */ - atomic_t relogin_timer; /* Max Time to wait for - * relogin to complete */ -- atomic_t relogin_retry_count; /* Num of times relogin has been -+ atomic_unchecked_t relogin_retry_count; /* Num of times relogin has been - * retried */ - uint32_t default_time2wait; /* Default Min time between - * relogins (+aens) */ -diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c -index ee47820..a83b1f4 100644 ---- a/drivers/scsi/qla4xxx/ql4_os.c -+++ b/drivers/scsi/qla4xxx/ql4_os.c -@@ -2551,12 +2551,12 @@ static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) - */ - if (!iscsi_is_session_online(cls_sess)) { - /* Reset retry relogin timer */ -- atomic_inc(&ddb_entry->relogin_retry_count); -+ atomic_inc_unchecked(&ddb_entry->relogin_retry_count); - DEBUG2(ql4_printk(KERN_INFO, ha, - "%s: index[%d] relogin timed out-retrying" - " relogin (%d), retry (%d)\n", __func__, - ddb_entry->fw_ddb_index, -- atomic_read(&ddb_entry->relogin_retry_count), -+ atomic_read_unchecked(&ddb_entry->relogin_retry_count), - ddb_entry->default_time2wait + 4)); - set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); - atomic_set(&ddb_entry->retry_relogin_timer, -@@ -4453,7 +4453,7 @@ static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, - - atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); - atomic_set(&ddb_entry->relogin_timer, 0); -- atomic_set(&ddb_entry->relogin_retry_count, 0); -+ atomic_set_unchecked(&ddb_entry->relogin_retry_count, 0); - def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); - ddb_entry->default_relogin_timeout = - (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? -diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c -index 07322ec..91ccc23 100644 ---- a/drivers/scsi/scsi.c -+++ b/drivers/scsi/scsi.c -@@ -655,7 +655,7 @@ int scsi_dispatch_cmd(struct scsi_cmnd *cmd) - unsigned long timeout; - int rtn = 0; - -- atomic_inc(&cmd->device->iorequest_cnt); -+ atomic_inc_unchecked(&cmd->device->iorequest_cnt); - - /* check if the device is still usable */ - if (unlikely(cmd->device->sdev_state == SDEV_DEL)) { -diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c -index 4037fd5..a19fcc7 100644 ---- a/drivers/scsi/scsi_lib.c -+++ b/drivers/scsi/scsi_lib.c -@@ -1415,7 +1415,7 @@ static void scsi_kill_request(struct request *req, struct request_queue *q) - shost = sdev->host; - scsi_init_cmd_errh(cmd); - cmd->result = DID_NO_CONNECT << 16; -- atomic_inc(&cmd->device->iorequest_cnt); -+ atomic_inc_unchecked(&cmd->device->iorequest_cnt); - - /* - * SCSI request completion path will do scsi_device_unbusy(), -@@ -1441,9 +1441,9 @@ static void scsi_softirq_done(struct request *rq) - - INIT_LIST_HEAD(&cmd->eh_entry); - -- atomic_inc(&cmd->device->iodone_cnt); -+ atomic_inc_unchecked(&cmd->device->iodone_cnt); - if (cmd->result) -- atomic_inc(&cmd->device->ioerr_cnt); -+ atomic_inc_unchecked(&cmd->device->ioerr_cnt); - - disposition = scsi_decide_disposition(cmd); - if (disposition != SUCCESS && -diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c -index 04c2a27..9d8bd66 100644 ---- a/drivers/scsi/scsi_sysfs.c -+++ b/drivers/scsi/scsi_sysfs.c -@@ -660,7 +660,7 @@ show_iostat_##field(struct device *dev, struct device_attribute *attr, \ - char *buf) \ - { \ - struct scsi_device *sdev = to_scsi_device(dev); \ -- unsigned long long count = atomic_read(&sdev->field); \ -+ unsigned long long count = atomic_read_unchecked(&sdev->field); \ - return snprintf(buf, 20, "0x%llx\n", count); \ - } \ - static DEVICE_ATTR(field, S_IRUGO, show_iostat_##field, NULL) -diff --git a/drivers/scsi/scsi_tgt_lib.c b/drivers/scsi/scsi_tgt_lib.c -index 84a1fdf..693b0d6 100644 ---- a/drivers/scsi/scsi_tgt_lib.c -+++ b/drivers/scsi/scsi_tgt_lib.c -@@ -362,7 +362,7 @@ static int scsi_map_user_pages(struct scsi_tgt_cmd *tcmd, struct scsi_cmnd *cmd, - int err; - - dprintk("%lx %u\n", uaddr, len); -- err = blk_rq_map_user(q, rq, NULL, (void *)uaddr, len, GFP_KERNEL); -+ err = blk_rq_map_user(q, rq, NULL, (void __user *)uaddr, len, GFP_KERNEL); - if (err) { - /* - * TODO: need to fixup sg_tablesize, max_segment_size, -diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c -index 80fbe2a..efa223b 100644 ---- a/drivers/scsi/scsi_transport_fc.c -+++ b/drivers/scsi/scsi_transport_fc.c -@@ -498,7 +498,7 @@ static DECLARE_TRANSPORT_CLASS(fc_vport_class, - * Netlink Infrastructure - */ - --static atomic_t fc_event_seq; -+static atomic_unchecked_t fc_event_seq; - - /** - * fc_get_event_number - Obtain the next sequential FC event number -@@ -511,7 +511,7 @@ static atomic_t fc_event_seq; - u32 - fc_get_event_number(void) - { -- return atomic_add_return(1, &fc_event_seq); -+ return atomic_add_return_unchecked(1, &fc_event_seq); - } - EXPORT_SYMBOL(fc_get_event_number); - -@@ -659,7 +659,7 @@ static __init int fc_transport_init(void) - { - int error; - -- atomic_set(&fc_event_seq, 0); -+ atomic_set_unchecked(&fc_event_seq, 0); - - error = transport_class_register(&fc_host_class); - if (error) -@@ -849,7 +849,7 @@ static int fc_str_to_dev_loss(const char *buf, unsigned long *val) - char *cp; - - *val = simple_strtoul(buf, &cp, 0); -- if ((*cp && (*cp != '\n')) || (*val < 0)) -+ if (*cp && (*cp != '\n')) - return -EINVAL; - /* - * Check for overflow; dev_loss_tmo is u32 -diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c -index 1cf640e..78e9014 100644 ---- a/drivers/scsi/scsi_transport_iscsi.c -+++ b/drivers/scsi/scsi_transport_iscsi.c -@@ -79,7 +79,7 @@ struct iscsi_internal { - struct transport_container session_cont; - }; - --static atomic_t iscsi_session_nr; /* sysfs session id for next new session */ -+static atomic_unchecked_t iscsi_session_nr; /* sysfs session id for next new session */ - static struct workqueue_struct *iscsi_eh_timer_workq; - - static DEFINE_IDA(iscsi_sess_ida); -@@ -1064,7 +1064,7 @@ int iscsi_add_session(struct iscsi_cls_session *session, unsigned int target_id) - int err; - - ihost = shost->shost_data; -- session->sid = atomic_add_return(1, &iscsi_session_nr); -+ session->sid = atomic_add_return_unchecked(1, &iscsi_session_nr); - - if (target_id == ISCSI_MAX_TARGET) { - id = ida_simple_get(&iscsi_sess_ida, 0, 0, GFP_KERNEL); -@@ -2940,7 +2940,7 @@ static __init int iscsi_transport_init(void) - printk(KERN_INFO "Loading iSCSI transport class v%s.\n", - ISCSI_TRANSPORT_VERSION); - -- atomic_set(&iscsi_session_nr, 0); -+ atomic_set_unchecked(&iscsi_session_nr, 0); - - err = class_register(&iscsi_transport_class); - if (err) -diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c -index 21a045e..ec89e03 100644 ---- a/drivers/scsi/scsi_transport_srp.c -+++ b/drivers/scsi/scsi_transport_srp.c -@@ -33,7 +33,7 @@ - #include "scsi_transport_srp_internal.h" - - struct srp_host_attrs { -- atomic_t next_port_id; -+ atomic_unchecked_t next_port_id; - }; - #define to_srp_host_attrs(host) ((struct srp_host_attrs *)(host)->shost_data) - -@@ -62,7 +62,7 @@ static int srp_host_setup(struct transport_container *tc, struct device *dev, - struct Scsi_Host *shost = dev_to_shost(dev); - struct srp_host_attrs *srp_host = to_srp_host_attrs(shost); - -- atomic_set(&srp_host->next_port_id, 0); -+ atomic_set_unchecked(&srp_host->next_port_id, 0); - return 0; - } - -@@ -211,7 +211,7 @@ struct srp_rport *srp_rport_add(struct Scsi_Host *shost, - memcpy(rport->port_id, ids->port_id, sizeof(rport->port_id)); - rport->roles = ids->roles; - -- id = atomic_inc_return(&to_srp_host_attrs(shost)->next_port_id); -+ id = atomic_inc_return_unchecked(&to_srp_host_attrs(shost)->next_port_id); - dev_set_name(&rport->dev, "port-%d:%d", shost->host_no, id); - - transport_setup_device(&rport->dev); -diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c -index eacd46b..e3f4d62 100644 ---- a/drivers/scsi/sg.c -+++ b/drivers/scsi/sg.c -@@ -1077,7 +1077,7 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) - sdp->disk->disk_name, - MKDEV(SCSI_GENERIC_MAJOR, sdp->index), - NULL, -- (char *)arg); -+ (char __user *)arg); - case BLKTRACESTART: - return blk_trace_startstop(sdp->device->request_queue, 1); - case BLKTRACESTOP: -@@ -2312,7 +2312,7 @@ struct sg_proc_leaf { - const struct file_operations * fops; - }; - --static struct sg_proc_leaf sg_proc_leaf_arr[] = { -+static const struct sg_proc_leaf sg_proc_leaf_arr[] = { - {"allow_dio", &adio_fops}, - {"debug", &debug_fops}, - {"def_reserved_size", &dressz_fops}, -@@ -2332,7 +2332,7 @@ sg_proc_init(void) - if (!sg_proc_sgp) - return 1; - for (k = 0; k < num_leaves; ++k) { -- struct sg_proc_leaf *leaf = &sg_proc_leaf_arr[k]; -+ const struct sg_proc_leaf *leaf = &sg_proc_leaf_arr[k]; - umode_t mask = leaf->fops->write ? S_IRUGO | S_IWUSR : S_IRUGO; - proc_create(leaf->name, mask, sg_proc_sgp, leaf->fops); - } -diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c -index 3d8f662..070f1a5 100644 ---- a/drivers/spi/spi.c -+++ b/drivers/spi/spi.c -@@ -1361,7 +1361,7 @@ int spi_bus_unlock(struct spi_master *master) - EXPORT_SYMBOL_GPL(spi_bus_unlock); - - /* portable code must never pass more than 32 bytes */ --#define SPI_BUFSIZ max(32,SMP_CACHE_BYTES) -+#define SPI_BUFSIZ max(32UL,SMP_CACHE_BYTES) - - static u8 *buf; - -diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c -index d91751f..a3a9e36 100644 ---- a/drivers/staging/octeon/ethernet-rx.c -+++ b/drivers/staging/octeon/ethernet-rx.c -@@ -421,11 +421,11 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget) - /* Increment RX stats for virtual ports */ - if (work->ipprt >= CVMX_PIP_NUM_INPUT_PORTS) { - #ifdef CONFIG_64BIT -- atomic64_add(1, (atomic64_t *)&priv->stats.rx_packets); -- atomic64_add(skb->len, (atomic64_t *)&priv->stats.rx_bytes); -+ atomic64_add_unchecked(1, (atomic64_unchecked_t *)&priv->stats.rx_packets); -+ atomic64_add_unchecked(skb->len, (atomic64_unchecked_t *)&priv->stats.rx_bytes); - #else -- atomic_add(1, (atomic_t *)&priv->stats.rx_packets); -- atomic_add(skb->len, (atomic_t *)&priv->stats.rx_bytes); -+ atomic_add_unchecked(1, (atomic_unchecked_t *)&priv->stats.rx_packets); -+ atomic_add_unchecked(skb->len, (atomic_unchecked_t *)&priv->stats.rx_bytes); - #endif - } - netif_receive_skb(skb); -@@ -437,9 +437,9 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget) - dev->name); - */ - #ifdef CONFIG_64BIT -- atomic64_add(1, (atomic64_t *)&priv->stats.rx_dropped); -+ atomic64_unchecked_add(1, (atomic64_unchecked_t *)&priv->stats.rx_dropped); - #else -- atomic_add(1, (atomic_t *)&priv->stats.rx_dropped); -+ atomic_add_unchecked(1, (atomic_unchecked_t *)&priv->stats.rx_dropped); - #endif - dev_kfree_skb_irq(skb); - } -diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c -index 60cba81..71eb239 100644 ---- a/drivers/staging/octeon/ethernet.c -+++ b/drivers/staging/octeon/ethernet.c -@@ -259,11 +259,11 @@ static struct net_device_stats *cvm_oct_common_get_stats(struct net_device *dev) - * since the RX tasklet also increments it. - */ - #ifdef CONFIG_64BIT -- atomic64_add(rx_status.dropped_packets, -- (atomic64_t *)&priv->stats.rx_dropped); -+ atomic64_add_unchecked(rx_status.dropped_packets, -+ (atomic64_unchecked_t *)&priv->stats.rx_dropped); - #else -- atomic_add(rx_status.dropped_packets, -- (atomic_t *)&priv->stats.rx_dropped); -+ atomic_add_unchecked(rx_status.dropped_packets, -+ (atomic_unchecked_t *)&priv->stats.rx_dropped); - #endif - } - -diff --git a/drivers/staging/rtl8712/rtl871x_io.h b/drivers/staging/rtl8712/rtl871x_io.h -index d3d8727..f9327bb8 100644 ---- a/drivers/staging/rtl8712/rtl871x_io.h -+++ b/drivers/staging/rtl8712/rtl871x_io.h -@@ -108,7 +108,7 @@ struct _io_ops { - u8 *pmem); - u32 (*_write_port)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, - u8 *pmem); --}; -+} __no_const; - - struct io_req { - struct list_head list; -diff --git a/drivers/staging/sbe-2t3e3/netdev.c b/drivers/staging/sbe-2t3e3/netdev.c -index c7b5e8b..783d6cb 100644 ---- a/drivers/staging/sbe-2t3e3/netdev.c -+++ b/drivers/staging/sbe-2t3e3/netdev.c -@@ -51,7 +51,7 @@ int t3e3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) - t3e3_if_config(sc, cmd_2t3e3, (char *)&param, &resp, &rlen); - - if (rlen) -- if (copy_to_user(data, &resp, rlen)) -+ if (rlen > sizeof resp || copy_to_user(data, &resp, rlen)) - return -EFAULT; - - return 0; -diff --git a/drivers/staging/speakup/speakup_soft.c b/drivers/staging/speakup/speakup_soft.c -index 42cdafe..2769103 100644 ---- a/drivers/staging/speakup/speakup_soft.c -+++ b/drivers/staging/speakup/speakup_soft.c -@@ -241,11 +241,11 @@ static ssize_t softsynth_read(struct file *fp, char *buf, size_t count, - break; - } else if (!initialized) { - if (*init) { -- ch = *init; - init++; - } else { - initialized = 1; - } -+ ch = *init; - } else { - ch = synth_buffer_getc(); - } -diff --git a/drivers/staging/usbip/usbip_common.h b/drivers/staging/usbip/usbip_common.h -index c7b888c..c94be93 100644 ---- a/drivers/staging/usbip/usbip_common.h -+++ b/drivers/staging/usbip/usbip_common.h -@@ -289,7 +289,7 @@ struct usbip_device { - void (*shutdown)(struct usbip_device *); - void (*reset)(struct usbip_device *); - void (*unusable)(struct usbip_device *); -- } eh_ops; -+ } __no_const eh_ops; - }; - - /* usbip_common.c */ -diff --git a/drivers/staging/usbip/vhci.h b/drivers/staging/usbip/vhci.h -index 88b3298..3783eee 100644 ---- a/drivers/staging/usbip/vhci.h -+++ b/drivers/staging/usbip/vhci.h -@@ -88,7 +88,7 @@ struct vhci_hcd { - unsigned resuming:1; - unsigned long re_timeout; - -- atomic_t seqnum; -+ atomic_unchecked_t seqnum; - - /* - * NOTE: -diff --git a/drivers/staging/usbip/vhci_hcd.c b/drivers/staging/usbip/vhci_hcd.c -index dca9bf1..80735c9 100644 ---- a/drivers/staging/usbip/vhci_hcd.c -+++ b/drivers/staging/usbip/vhci_hcd.c -@@ -488,7 +488,7 @@ static void vhci_tx_urb(struct urb *urb) - return; - } - -- priv->seqnum = atomic_inc_return(&the_controller->seqnum); -+ priv->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum); - if (priv->seqnum == 0xffff) - dev_info(&urb->dev->dev, "seqnum max\n"); - -@@ -740,7 +740,7 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) - return -ENOMEM; - } - -- unlink->seqnum = atomic_inc_return(&the_controller->seqnum); -+ unlink->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum); - if (unlink->seqnum == 0xffff) - pr_info("seqnum max\n"); - -@@ -928,7 +928,7 @@ static int vhci_start(struct usb_hcd *hcd) - vdev->rhport = rhport; - } - -- atomic_set(&vhci->seqnum, 0); -+ atomic_set_unchecked(&vhci->seqnum, 0); - spin_lock_init(&vhci->lock); - - hcd->power_budget = 0; /* no limit */ -diff --git a/drivers/staging/usbip/vhci_rx.c b/drivers/staging/usbip/vhci_rx.c -index f5fba732..210a16c 100644 ---- a/drivers/staging/usbip/vhci_rx.c -+++ b/drivers/staging/usbip/vhci_rx.c -@@ -77,7 +77,7 @@ static void vhci_recv_ret_submit(struct vhci_device *vdev, - if (!urb) { - pr_err("cannot find a urb of seqnum %u\n", pdu->base.seqnum); - pr_info("max seqnum %d\n", -- atomic_read(&the_controller->seqnum)); -+ atomic_read_unchecked(&the_controller->seqnum)); - usbip_event_add(ud, VDEV_EVENT_ERROR_TCP); - return; - } -diff --git a/drivers/staging/vt6655/hostap.c b/drivers/staging/vt6655/hostap.c -index 7735027..30eed13 100644 ---- a/drivers/staging/vt6655/hostap.c -+++ b/drivers/staging/vt6655/hostap.c -@@ -79,14 +79,13 @@ static int msglevel =MSG_LEVEL_INFO; - * - */ - -+static net_device_ops_no_const apdev_netdev_ops; -+ - static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked) - { - PSDevice apdev_priv; - struct net_device *dev = pDevice->dev; - int ret; -- const struct net_device_ops apdev_netdev_ops = { -- .ndo_start_xmit = pDevice->tx_80211, -- }; - - DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name); - -@@ -98,6 +97,8 @@ static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked) - *apdev_priv = *pDevice; - memcpy(pDevice->apdev->dev_addr, dev->dev_addr, ETH_ALEN); - -+ /* only half broken now */ -+ apdev_netdev_ops.ndo_start_xmit = pDevice->tx_80211; - pDevice->apdev->netdev_ops = &apdev_netdev_ops; - - pDevice->apdev->type = ARPHRD_IEEE80211; -diff --git a/drivers/staging/vt6656/hostap.c b/drivers/staging/vt6656/hostap.c -index 51b5adf..098e320 100644 ---- a/drivers/staging/vt6656/hostap.c -+++ b/drivers/staging/vt6656/hostap.c -@@ -80,14 +80,13 @@ static int msglevel =MSG_LEVEL_INFO; - * - */ - -+static net_device_ops_no_const apdev_netdev_ops; -+ - static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked) - { - PSDevice apdev_priv; - struct net_device *dev = pDevice->dev; - int ret; -- const struct net_device_ops apdev_netdev_ops = { -- .ndo_start_xmit = pDevice->tx_80211, -- }; - - DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name); - -@@ -99,6 +98,8 @@ static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked) - *apdev_priv = *pDevice; - memcpy(pDevice->apdev->dev_addr, dev->dev_addr, ETH_ALEN); - -+ /* only half broken now */ -+ apdev_netdev_ops.ndo_start_xmit = pDevice->tx_80211; - pDevice->apdev->netdev_ops = &apdev_netdev_ops; - - pDevice->apdev->type = ARPHRD_IEEE80211; -diff --git a/drivers/staging/wlan-ng/hfa384x_usb.c b/drivers/staging/wlan-ng/hfa384x_usb.c -index 7843dfd..3db105f 100644 ---- a/drivers/staging/wlan-ng/hfa384x_usb.c -+++ b/drivers/staging/wlan-ng/hfa384x_usb.c -@@ -204,7 +204,7 @@ static void unlocked_usbctlx_complete(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx); - - struct usbctlx_completor { - int (*complete) (struct usbctlx_completor *); --}; -+} __no_const; - - static int - hfa384x_usbctlx_complete_sync(hfa384x_t *hw, -diff --git a/drivers/staging/zcache/tmem.c b/drivers/staging/zcache/tmem.c -index 1ca66ea..76f1343 100644 ---- a/drivers/staging/zcache/tmem.c -+++ b/drivers/staging/zcache/tmem.c -@@ -39,7 +39,7 @@ - * A tmem host implementation must use this function to register callbacks - * for memory allocation. - */ --static struct tmem_hostops tmem_hostops; -+static tmem_hostops_no_const tmem_hostops; - - static void tmem_objnode_tree_init(void); - -@@ -53,7 +53,7 @@ void tmem_register_hostops(struct tmem_hostops *m) - * A tmem host implementation must use this function to register - * callbacks for a page-accessible memory (PAM) implementation - */ --static struct tmem_pamops tmem_pamops; -+static tmem_pamops_no_const tmem_pamops; - - void tmem_register_pamops(struct tmem_pamops *m) - { -diff --git a/drivers/staging/zcache/tmem.h b/drivers/staging/zcache/tmem.h -index 0d4aa82..f7832d4 100644 ---- a/drivers/staging/zcache/tmem.h -+++ b/drivers/staging/zcache/tmem.h -@@ -180,6 +180,7 @@ struct tmem_pamops { - void (*new_obj)(struct tmem_obj *); - int (*replace_in_obj)(void *, struct tmem_obj *); - }; -+typedef struct tmem_pamops __no_const tmem_pamops_no_const; - extern void tmem_register_pamops(struct tmem_pamops *m); - - /* memory allocation methods provided by the host implementation */ -@@ -189,6 +190,7 @@ struct tmem_hostops { - struct tmem_objnode *(*objnode_alloc)(struct tmem_pool *); - void (*objnode_free)(struct tmem_objnode *, struct tmem_pool *); - }; -+typedef struct tmem_hostops __no_const tmem_hostops_no_const; - extern void tmem_register_hostops(struct tmem_hostops *m); - - /* core tmem accessor functions */ -diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c -index f015839..b15dfc4 100644 ---- a/drivers/target/target_core_tmr.c -+++ b/drivers/target/target_core_tmr.c -@@ -327,7 +327,7 @@ static void core_tmr_drain_task_list( - cmd->se_tfo->get_task_tag(cmd), cmd->pr_res_key, - cmd->t_task_list_num, - atomic_read(&cmd->t_task_cdbs_left), -- atomic_read(&cmd->t_task_cdbs_sent), -+ atomic_read_unchecked(&cmd->t_task_cdbs_sent), - (cmd->transport_state & CMD_T_ACTIVE) != 0, - (cmd->transport_state & CMD_T_STOP) != 0, - (cmd->transport_state & CMD_T_SENT) != 0); -diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c -index 443704f..92d3517 100644 ---- a/drivers/target/target_core_transport.c -+++ b/drivers/target/target_core_transport.c -@@ -1355,7 +1355,7 @@ struct se_device *transport_add_device_to_core_hba( - spin_lock_init(&dev->se_port_lock); - spin_lock_init(&dev->se_tmr_lock); - spin_lock_init(&dev->qf_cmd_lock); -- atomic_set(&dev->dev_ordered_id, 0); -+ atomic_set_unchecked(&dev->dev_ordered_id, 0); - - se_dev_set_default_attribs(dev, dev_limits); - -@@ -1542,7 +1542,7 @@ static int transport_check_alloc_task_attr(struct se_cmd *cmd) - * Used to determine when ORDERED commands should go from - * Dormant to Active status. - */ -- cmd->se_ordered_id = atomic_inc_return(&cmd->se_dev->dev_ordered_id); -+ cmd->se_ordered_id = atomic_inc_return_unchecked(&cmd->se_dev->dev_ordered_id); - smp_mb__after_atomic_inc(); - pr_debug("Allocated se_ordered_id: %u for Task Attr: 0x%02x on %s\n", - cmd->se_ordered_id, cmd->sam_task_attr, -@@ -1956,7 +1956,7 @@ void transport_generic_request_failure(struct se_cmd *cmd) - " CMD_T_ACTIVE: %d CMD_T_STOP: %d CMD_T_SENT: %d\n", - cmd->t_task_list_num, - atomic_read(&cmd->t_task_cdbs_left), -- atomic_read(&cmd->t_task_cdbs_sent), -+ atomic_read_unchecked(&cmd->t_task_cdbs_sent), - atomic_read(&cmd->t_task_cdbs_ex_left), - (cmd->transport_state & CMD_T_ACTIVE) != 0, - (cmd->transport_state & CMD_T_STOP) != 0, -@@ -2216,9 +2216,9 @@ check_depth: - cmd = task->task_se_cmd; - spin_lock_irqsave(&cmd->t_state_lock, flags); - task->task_flags |= (TF_ACTIVE | TF_SENT); -- atomic_inc(&cmd->t_task_cdbs_sent); -+ atomic_inc_unchecked(&cmd->t_task_cdbs_sent); - -- if (atomic_read(&cmd->t_task_cdbs_sent) == -+ if (atomic_read_unchecked(&cmd->t_task_cdbs_sent) == - cmd->t_task_list_num) - cmd->transport_state |= CMD_T_SENT; - -diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c -index 3436436..772237b 100644 ---- a/drivers/tty/hvc/hvcs.c -+++ b/drivers/tty/hvc/hvcs.c -@@ -83,6 +83,7 @@ - #include <asm/hvcserver.h> - #include <asm/uaccess.h> - #include <asm/vio.h> -+#include <asm/local.h> - - /* - * 1.3.0 -> 1.3.1 In hvcs_open memset(..,0x00,..) instead of memset(..,0x3F,00). -@@ -270,7 +271,7 @@ struct hvcs_struct { - unsigned int index; - - struct tty_struct *tty; -- int open_count; -+ local_t open_count; - - /* - * Used to tell the driver kernel_thread what operations need to take -@@ -422,7 +423,7 @@ static ssize_t hvcs_vterm_state_store(struct device *dev, struct device_attribut - - spin_lock_irqsave(&hvcsd->lock, flags); - -- if (hvcsd->open_count > 0) { -+ if (local_read(&hvcsd->open_count) > 0) { - spin_unlock_irqrestore(&hvcsd->lock, flags); - printk(KERN_INFO "HVCS: vterm state unchanged. " - "The hvcs device node is still in use.\n"); -@@ -1138,7 +1139,7 @@ static int hvcs_open(struct tty_struct *tty, struct file *filp) - if ((retval = hvcs_partner_connect(hvcsd))) - goto error_release; - -- hvcsd->open_count = 1; -+ local_set(&hvcsd->open_count, 1); - hvcsd->tty = tty; - tty->driver_data = hvcsd; - -@@ -1172,7 +1173,7 @@ fast_open: - - spin_lock_irqsave(&hvcsd->lock, flags); - kref_get(&hvcsd->kref); -- hvcsd->open_count++; -+ local_inc(&hvcsd->open_count); - hvcsd->todo_mask |= HVCS_SCHED_READ; - spin_unlock_irqrestore(&hvcsd->lock, flags); - -@@ -1216,7 +1217,7 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp) - hvcsd = tty->driver_data; - - spin_lock_irqsave(&hvcsd->lock, flags); -- if (--hvcsd->open_count == 0) { -+ if (local_dec_and_test(&hvcsd->open_count)) { - - vio_disable_interrupts(hvcsd->vdev); - -@@ -1242,10 +1243,10 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp) - free_irq(irq, hvcsd); - kref_put(&hvcsd->kref, destroy_hvcs_struct); - return; -- } else if (hvcsd->open_count < 0) { -+ } else if (local_read(&hvcsd->open_count) < 0) { - printk(KERN_ERR "HVCS: vty-server@%X open_count: %d" - " is missmanaged.\n", -- hvcsd->vdev->unit_address, hvcsd->open_count); -+ hvcsd->vdev->unit_address, local_read(&hvcsd->open_count)); - } - - spin_unlock_irqrestore(&hvcsd->lock, flags); -@@ -1261,7 +1262,7 @@ static void hvcs_hangup(struct tty_struct * tty) - - spin_lock_irqsave(&hvcsd->lock, flags); - /* Preserve this so that we know how many kref refs to put */ -- temp_open_count = hvcsd->open_count; -+ temp_open_count = local_read(&hvcsd->open_count); - - /* - * Don't kref put inside the spinlock because the destruction -@@ -1276,7 +1277,7 @@ static void hvcs_hangup(struct tty_struct * tty) - hvcsd->tty->driver_data = NULL; - hvcsd->tty = NULL; - -- hvcsd->open_count = 0; -+ local_set(&hvcsd->open_count, 0); - - /* This will drop any buffered data on the floor which is OK in a hangup - * scenario. */ -@@ -1347,7 +1348,7 @@ static int hvcs_write(struct tty_struct *tty, - * the middle of a write operation? This is a crummy place to do this - * but we want to keep it all in the spinlock. - */ -- if (hvcsd->open_count <= 0) { -+ if (local_read(&hvcsd->open_count) <= 0) { - spin_unlock_irqrestore(&hvcsd->lock, flags); - return -ENODEV; - } -@@ -1421,7 +1422,7 @@ static int hvcs_write_room(struct tty_struct *tty) - { - struct hvcs_struct *hvcsd = tty->driver_data; - -- if (!hvcsd || hvcsd->open_count <= 0) -+ if (!hvcsd || local_read(&hvcsd->open_count) <= 0) - return 0; - - return HVCS_BUFF_LEN - hvcsd->chars_in_buffer; -diff --git a/drivers/tty/ipwireless/tty.c b/drivers/tty/ipwireless/tty.c -index 4daf962..b4a2281 100644 ---- a/drivers/tty/ipwireless/tty.c -+++ b/drivers/tty/ipwireless/tty.c -@@ -29,6 +29,7 @@ - #include <linux/tty_driver.h> - #include <linux/tty_flip.h> - #include <linux/uaccess.h> -+#include <asm/local.h> - - #include "tty.h" - #include "network.h" -@@ -51,7 +52,7 @@ struct ipw_tty { - int tty_type; - struct ipw_network *network; - struct tty_struct *linux_tty; -- int open_count; -+ local_t open_count; - unsigned int control_lines; - struct mutex ipw_tty_mutex; - int tx_bytes_queued; -@@ -117,10 +118,10 @@ static int ipw_open(struct tty_struct *linux_tty, struct file *filp) - mutex_unlock(&tty->ipw_tty_mutex); - return -ENODEV; - } -- if (tty->open_count == 0) -+ if (local_read(&tty->open_count) == 0) - tty->tx_bytes_queued = 0; - -- tty->open_count++; -+ local_inc(&tty->open_count); - - tty->linux_tty = linux_tty; - linux_tty->driver_data = tty; -@@ -136,9 +137,7 @@ static int ipw_open(struct tty_struct *linux_tty, struct file *filp) - - static void do_ipw_close(struct ipw_tty *tty) - { -- tty->open_count--; -- -- if (tty->open_count == 0) { -+ if (local_dec_return(&tty->open_count) == 0) { - struct tty_struct *linux_tty = tty->linux_tty; - - if (linux_tty != NULL) { -@@ -159,7 +158,7 @@ static void ipw_hangup(struct tty_struct *linux_tty) - return; - - mutex_lock(&tty->ipw_tty_mutex); -- if (tty->open_count == 0) { -+ if (local_read(&tty->open_count) == 0) { - mutex_unlock(&tty->ipw_tty_mutex); - return; - } -@@ -188,7 +187,7 @@ void ipwireless_tty_received(struct ipw_tty *tty, unsigned char *data, - return; - } - -- if (!tty->open_count) { -+ if (!local_read(&tty->open_count)) { - mutex_unlock(&tty->ipw_tty_mutex); - return; - } -@@ -230,7 +229,7 @@ static int ipw_write(struct tty_struct *linux_tty, - return -ENODEV; - - mutex_lock(&tty->ipw_tty_mutex); -- if (!tty->open_count) { -+ if (!local_read(&tty->open_count)) { - mutex_unlock(&tty->ipw_tty_mutex); - return -EINVAL; - } -@@ -270,7 +269,7 @@ static int ipw_write_room(struct tty_struct *linux_tty) - if (!tty) - return -ENODEV; - -- if (!tty->open_count) -+ if (!local_read(&tty->open_count)) - return -EINVAL; - - room = IPWIRELESS_TX_QUEUE_SIZE - tty->tx_bytes_queued; -@@ -312,7 +311,7 @@ static int ipw_chars_in_buffer(struct tty_struct *linux_tty) - if (!tty) - return 0; - -- if (!tty->open_count) -+ if (!local_read(&tty->open_count)) - return 0; - - return tty->tx_bytes_queued; -@@ -393,7 +392,7 @@ static int ipw_tiocmget(struct tty_struct *linux_tty) - if (!tty) - return -ENODEV; - -- if (!tty->open_count) -+ if (!local_read(&tty->open_count)) - return -EINVAL; - - return get_control_lines(tty); -@@ -409,7 +408,7 @@ ipw_tiocmset(struct tty_struct *linux_tty, - if (!tty) - return -ENODEV; - -- if (!tty->open_count) -+ if (!local_read(&tty->open_count)) - return -EINVAL; - - return set_control_lines(tty, set, clear); -@@ -423,7 +422,7 @@ static int ipw_ioctl(struct tty_struct *linux_tty, - if (!tty) - return -ENODEV; - -- if (!tty->open_count) -+ if (!local_read(&tty->open_count)) - return -EINVAL; - - /* FIXME: Exactly how is the tty object locked here .. */ -@@ -572,7 +571,7 @@ void ipwireless_tty_free(struct ipw_tty *tty) - against a parallel ioctl etc */ - mutex_lock(&ttyj->ipw_tty_mutex); - } -- while (ttyj->open_count) -+ while (local_read(&ttyj->open_count)) - do_ipw_close(ttyj); - ipwireless_disassociate_network_ttys(network, - ttyj->channel_idx); -diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c -index c43b683..0a88f1c 100644 ---- a/drivers/tty/n_gsm.c -+++ b/drivers/tty/n_gsm.c -@@ -1629,7 +1629,7 @@ static struct gsm_dlci *gsm_dlci_alloc(struct gsm_mux *gsm, int addr) - kref_init(&dlci->ref); - mutex_init(&dlci->mutex); - dlci->fifo = &dlci->_fifo; -- if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL) < 0) { -+ if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL)) { - kfree(dlci); - return NULL; - } -diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c -index 94b6eda..15f7cec 100644 ---- a/drivers/tty/n_tty.c -+++ b/drivers/tty/n_tty.c -@@ -2122,6 +2122,7 @@ void n_tty_inherit_ops(struct tty_ldisc_ops *ops) - { - *ops = tty_ldisc_N_TTY; - ops->owner = NULL; -- ops->refcount = ops->flags = 0; -+ atomic_set(&ops->refcount, 0); -+ ops->flags = 0; - } - EXPORT_SYMBOL_GPL(n_tty_inherit_ops); -diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c -index eeae7fa..177a743 100644 ---- a/drivers/tty/pty.c -+++ b/drivers/tty/pty.c -@@ -707,8 +707,10 @@ static void __init unix98_pty_init(void) - panic("Couldn't register Unix98 pts driver"); - - /* Now create the /dev/ptmx special device */ -+ pax_open_kernel(); - tty_default_fops(&ptmx_fops); -- ptmx_fops.open = ptmx_open; -+ *(void **)&ptmx_fops.open = ptmx_open; -+ pax_close_kernel(); - - cdev_init(&ptmx_cdev, &ptmx_fops); - if (cdev_add(&ptmx_cdev, MKDEV(TTYAUX_MAJOR, 2), 1) || -diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c -index 2b42a01..32a2ed3 100644 ---- a/drivers/tty/serial/kgdboc.c -+++ b/drivers/tty/serial/kgdboc.c -@@ -24,8 +24,9 @@ - #define MAX_CONFIG_LEN 40 - - static struct kgdb_io kgdboc_io_ops; -+static struct kgdb_io kgdboc_io_ops_console; - --/* -1 = init not run yet, 0 = unconfigured, 1 = configured. */ -+/* -1 = init not run yet, 0 = unconfigured, 1/2 = configured. */ - static int configured = -1; - - static char config[MAX_CONFIG_LEN]; -@@ -148,6 +149,8 @@ static void cleanup_kgdboc(void) - kgdboc_unregister_kbd(); - if (configured == 1) - kgdb_unregister_io_module(&kgdboc_io_ops); -+ else if (configured == 2) -+ kgdb_unregister_io_module(&kgdboc_io_ops_console); - } - - static int configure_kgdboc(void) -@@ -157,13 +160,13 @@ static int configure_kgdboc(void) - int err; - char *cptr = config; - struct console *cons; -+ int is_console = 0; - - err = kgdboc_option_setup(config); - if (err || !strlen(config) || isspace(config[0])) - goto noconfig; - - err = -ENODEV; -- kgdboc_io_ops.is_console = 0; - kgdb_tty_driver = NULL; - - kgdboc_use_kms = 0; -@@ -184,7 +187,7 @@ static int configure_kgdboc(void) - int idx; - if (cons->device && cons->device(cons, &idx) == p && - idx == tty_line) { -- kgdboc_io_ops.is_console = 1; -+ is_console = 1; - break; - } - cons = cons->next; -@@ -194,12 +197,16 @@ static int configure_kgdboc(void) - kgdb_tty_line = tty_line; - - do_register: -- err = kgdb_register_io_module(&kgdboc_io_ops); -+ if (is_console) { -+ err = kgdb_register_io_module(&kgdboc_io_ops_console); -+ configured = 2; -+ } else { -+ err = kgdb_register_io_module(&kgdboc_io_ops); -+ configured = 1; -+ } - if (err) - goto noconfig; - -- configured = 1; -- - return 0; - - noconfig: -@@ -213,7 +220,7 @@ noconfig: - static int __init init_kgdboc(void) - { - /* Already configured? */ -- if (configured == 1) -+ if (configured >= 1) - return 0; - - return configure_kgdboc(); -@@ -262,7 +269,7 @@ static int param_set_kgdboc_var(const char *kmessage, struct kernel_param *kp) - if (config[len - 1] == '\n') - config[len - 1] = '\0'; - -- if (configured == 1) -+ if (configured >= 1) - cleanup_kgdboc(); - - /* Go and configure with the new params. */ -@@ -302,6 +309,15 @@ static struct kgdb_io kgdboc_io_ops = { - .post_exception = kgdboc_post_exp_handler, - }; - -+static struct kgdb_io kgdboc_io_ops_console = { -+ .name = "kgdboc", -+ .read_char = kgdboc_get_char, -+ .write_char = kgdboc_put_char, -+ .pre_exception = kgdboc_pre_exp_handler, -+ .post_exception = kgdboc_post_exp_handler, -+ .is_console = 1 -+}; -+ - #ifdef CONFIG_KGDB_SERIAL_CONSOLE - /* This is only available if kgdboc is a built in for early debugging */ - static int __init kgdboc_early_init(char *opt) -diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c -index 05728894..b9d44c6 100644 ---- a/drivers/tty/sysrq.c -+++ b/drivers/tty/sysrq.c -@@ -865,7 +865,7 @@ EXPORT_SYMBOL(unregister_sysrq_key); - static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf, - size_t count, loff_t *ppos) - { -- if (count) { -+ if (count && capable(CAP_SYS_ADMIN)) { - char c; - - if (get_user(c, buf)) -diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c -index d939bd7..33d92cd 100644 ---- a/drivers/tty/tty_io.c -+++ b/drivers/tty/tty_io.c -@@ -3278,7 +3278,7 @@ EXPORT_SYMBOL_GPL(get_current_tty); - - void tty_default_fops(struct file_operations *fops) - { -- *fops = tty_fops; -+ memcpy((void *)fops, &tty_fops, sizeof(tty_fops)); - } - - /* -diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c -index 24b95db..9c078d0 100644 ---- a/drivers/tty/tty_ldisc.c -+++ b/drivers/tty/tty_ldisc.c -@@ -57,7 +57,7 @@ static void put_ldisc(struct tty_ldisc *ld) - if (atomic_dec_and_lock(&ld->users, &tty_ldisc_lock)) { - struct tty_ldisc_ops *ldo = ld->ops; - -- ldo->refcount--; -+ atomic_dec(&ldo->refcount); - module_put(ldo->owner); - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - -@@ -92,7 +92,7 @@ int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc) - spin_lock_irqsave(&tty_ldisc_lock, flags); - tty_ldiscs[disc] = new_ldisc; - new_ldisc->num = disc; -- new_ldisc->refcount = 0; -+ atomic_set(&new_ldisc->refcount, 0); - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - - return ret; -@@ -120,7 +120,7 @@ int tty_unregister_ldisc(int disc) - return -EINVAL; - - spin_lock_irqsave(&tty_ldisc_lock, flags); -- if (tty_ldiscs[disc]->refcount) -+ if (atomic_read(&tty_ldiscs[disc]->refcount)) - ret = -EBUSY; - else - tty_ldiscs[disc] = NULL; -@@ -141,7 +141,7 @@ static struct tty_ldisc_ops *get_ldops(int disc) - if (ldops) { - ret = ERR_PTR(-EAGAIN); - if (try_module_get(ldops->owner)) { -- ldops->refcount++; -+ atomic_inc(&ldops->refcount); - ret = ldops; - } - } -@@ -154,7 +154,7 @@ static void put_ldops(struct tty_ldisc_ops *ldops) - unsigned long flags; - - spin_lock_irqsave(&tty_ldisc_lock, flags); -- ldops->refcount--; -+ atomic_dec(&ldops->refcount); - module_put(ldops->owner); - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - } -diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c -index 3b0c4e3..f98a992 100644 ---- a/drivers/tty/vt/keyboard.c -+++ b/drivers/tty/vt/keyboard.c -@@ -663,6 +663,16 @@ static void k_spec(struct vc_data *vc, unsigned char value, char up_flag) - kbd->kbdmode == VC_OFF) && - value != KVAL(K_SAK)) - return; /* SAK is allowed even in raw mode */ -+ -+#if defined(CONFIG_GRKERNSEC_PROC) || defined(CONFIG_GRKERNSEC_PROC_MEMMAP) -+ { -+ void *func = fn_handler[value]; -+ if (func == fn_show_state || func == fn_show_ptregs || -+ func == fn_show_mem) -+ return; -+ } -+#endif -+ - fn_handler[value](vc); - } - -@@ -1812,9 +1822,6 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm, - if (copy_from_user(&tmp, user_kbe, sizeof(struct kbentry))) - return -EFAULT; - -- if (!capable(CAP_SYS_TTY_CONFIG)) -- perm = 0; -- - switch (cmd) { - case KDGKBENT: - /* Ensure another thread doesn't free it under us */ -@@ -1829,6 +1836,9 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm, - spin_unlock_irqrestore(&kbd_event_lock, flags); - return put_user(val, &user_kbe->kb_value); - case KDSKBENT: -+ if (!capable(CAP_SYS_TTY_CONFIG)) -+ perm = 0; -+ - if (!perm) - return -EPERM; - if (!i && v == K_NOSUCHMAP) { -@@ -1919,9 +1929,6 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm) - int i, j, k; - int ret; - -- if (!capable(CAP_SYS_TTY_CONFIG)) -- perm = 0; -- - kbs = kmalloc(sizeof(*kbs), GFP_KERNEL); - if (!kbs) { - ret = -ENOMEM; -@@ -1955,6 +1962,9 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm) - kfree(kbs); - return ((p && *p) ? -EOVERFLOW : 0); - case KDSKBSENT: -+ if (!capable(CAP_SYS_TTY_CONFIG)) -+ perm = 0; -+ - if (!perm) { - ret = -EPERM; - goto reterr; -diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c -index a783d53..cb30d94 100644 ---- a/drivers/uio/uio.c -+++ b/drivers/uio/uio.c -@@ -25,6 +25,7 @@ - #include <linux/kobject.h> - #include <linux/cdev.h> - #include <linux/uio_driver.h> -+#include <asm/local.h> - - #define UIO_MAX_DEVICES (1U << MINORBITS) - -@@ -32,10 +33,10 @@ struct uio_device { - struct module *owner; - struct device *dev; - int minor; -- atomic_t event; -+ atomic_unchecked_t event; - struct fasync_struct *async_queue; - wait_queue_head_t wait; -- int vma_count; -+ local_t vma_count; - struct uio_info *info; - struct kobject *map_dir; - struct kobject *portio_dir; -@@ -242,7 +243,7 @@ static ssize_t show_event(struct device *dev, - struct device_attribute *attr, char *buf) - { - struct uio_device *idev = dev_get_drvdata(dev); -- return sprintf(buf, "%u\n", (unsigned int)atomic_read(&idev->event)); -+ return sprintf(buf, "%u\n", (unsigned int)atomic_read_unchecked(&idev->event)); - } - - static struct device_attribute uio_class_attributes[] = { -@@ -408,7 +409,7 @@ void uio_event_notify(struct uio_info *info) - { - struct uio_device *idev = info->uio_dev; - -- atomic_inc(&idev->event); -+ atomic_inc_unchecked(&idev->event); - wake_up_interruptible(&idev->wait); - kill_fasync(&idev->async_queue, SIGIO, POLL_IN); - } -@@ -461,7 +462,7 @@ static int uio_open(struct inode *inode, struct file *filep) - } - - listener->dev = idev; -- listener->event_count = atomic_read(&idev->event); -+ listener->event_count = atomic_read_unchecked(&idev->event); - filep->private_data = listener; - - if (idev->info->open) { -@@ -512,7 +513,7 @@ static unsigned int uio_poll(struct file *filep, poll_table *wait) - return -EIO; - - poll_wait(filep, &idev->wait, wait); -- if (listener->event_count != atomic_read(&idev->event)) -+ if (listener->event_count != atomic_read_unchecked(&idev->event)) - return POLLIN | POLLRDNORM; - return 0; - } -@@ -537,7 +538,7 @@ static ssize_t uio_read(struct file *filep, char __user *buf, - do { - set_current_state(TASK_INTERRUPTIBLE); - -- event_count = atomic_read(&idev->event); -+ event_count = atomic_read_unchecked(&idev->event); - if (event_count != listener->event_count) { - if (copy_to_user(buf, &event_count, count)) - retval = -EFAULT; -@@ -606,13 +607,13 @@ static int uio_find_mem_index(struct vm_area_struct *vma) - static void uio_vma_open(struct vm_area_struct *vma) - { - struct uio_device *idev = vma->vm_private_data; -- idev->vma_count++; -+ local_inc(&idev->vma_count); - } - - static void uio_vma_close(struct vm_area_struct *vma) - { - struct uio_device *idev = vma->vm_private_data; -- idev->vma_count--; -+ local_dec(&idev->vma_count); - } - - static int uio_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf) -@@ -821,7 +822,7 @@ int __uio_register_device(struct module *owner, - idev->owner = owner; - idev->info = info; - init_waitqueue_head(&idev->wait); -- atomic_set(&idev->event, 0); -+ atomic_set_unchecked(&idev->event, 0); - - ret = uio_get_minor(idev); - if (ret) -diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c -index 98b89fe..aff824e 100644 ---- a/drivers/usb/atm/cxacru.c -+++ b/drivers/usb/atm/cxacru.c -@@ -473,7 +473,7 @@ static ssize_t cxacru_sysfs_store_adsl_config(struct device *dev, - ret = sscanf(buf + pos, "%x=%x%n", &index, &value, &tmp); - if (ret < 2) - return -EINVAL; -- if (index < 0 || index > 0x7f) -+ if (index > 0x7f) - return -EINVAL; - pos += tmp; - -diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c -index d3448ca..d2864ca 100644 ---- a/drivers/usb/atm/usbatm.c -+++ b/drivers/usb/atm/usbatm.c -@@ -333,7 +333,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char - if (printk_ratelimit()) - atm_warn(instance, "%s: OAM not supported (vpi %d, vci %d)!\n", - __func__, vpi, vci); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - return; - } - -@@ -361,7 +361,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char - if (length > ATM_MAX_AAL5_PDU) { - atm_rldbg(instance, "%s: bogus length %u (vcc: 0x%p)!\n", - __func__, length, vcc); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - goto out; - } - -@@ -370,14 +370,14 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char - if (sarb->len < pdu_length) { - atm_rldbg(instance, "%s: bogus pdu_length %u (sarb->len: %u, vcc: 0x%p)!\n", - __func__, pdu_length, sarb->len, vcc); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - goto out; - } - - if (crc32_be(~0, skb_tail_pointer(sarb) - pdu_length, pdu_length) != 0xc704dd7b) { - atm_rldbg(instance, "%s: packet failed crc check (vcc: 0x%p)!\n", - __func__, vcc); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - goto out; - } - -@@ -387,7 +387,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char - if (printk_ratelimit()) - atm_err(instance, "%s: no memory for skb (length: %u)!\n", - __func__, length); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - goto out; - } - -@@ -412,7 +412,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char - - vcc->push(vcc, skb); - -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - out: - skb_trim(sarb, 0); - } -@@ -615,7 +615,7 @@ static void usbatm_tx_process(unsigned long data) - struct atm_vcc *vcc = UDSL_SKB(skb)->atm.vcc; - - usbatm_pop(vcc, skb); -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - - skb = skb_dequeue(&instance->sndqueue); - } -@@ -773,11 +773,11 @@ static int usbatm_atm_proc_read(struct atm_dev *atm_dev, loff_t * pos, char *pag - if (!left--) - return sprintf(page, - "AAL5: tx %d ( %d err ), rx %d ( %d err, %d drop )\n", -- atomic_read(&atm_dev->stats.aal5.tx), -- atomic_read(&atm_dev->stats.aal5.tx_err), -- atomic_read(&atm_dev->stats.aal5.rx), -- atomic_read(&atm_dev->stats.aal5.rx_err), -- atomic_read(&atm_dev->stats.aal5.rx_drop)); -+ atomic_read_unchecked(&atm_dev->stats.aal5.tx), -+ atomic_read_unchecked(&atm_dev->stats.aal5.tx_err), -+ atomic_read_unchecked(&atm_dev->stats.aal5.rx), -+ atomic_read_unchecked(&atm_dev->stats.aal5.rx_err), -+ atomic_read_unchecked(&atm_dev->stats.aal5.rx_drop)); - - if (!left--) { - if (instance->disconnected) -diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c -index d956965..4179a77 100644 ---- a/drivers/usb/core/devices.c -+++ b/drivers/usb/core/devices.c -@@ -126,7 +126,7 @@ static const char format_endpt[] = - * time it gets called. - */ - static struct device_connect_event { -- atomic_t count; -+ atomic_unchecked_t count; - wait_queue_head_t wait; - } device_event = { - .count = ATOMIC_INIT(1), -@@ -164,7 +164,7 @@ static const struct class_info clas_info[] = { - - void usbfs_conn_disc_event(void) - { -- atomic_add(2, &device_event.count); -+ atomic_add_unchecked(2, &device_event.count); - wake_up(&device_event.wait); - } - -@@ -648,7 +648,7 @@ static unsigned int usb_device_poll(struct file *file, - - poll_wait(file, &device_event.wait, wait); - -- event_count = atomic_read(&device_event.count); -+ event_count = atomic_read_unchecked(&device_event.count); - if (file->f_version != event_count) { - file->f_version = event_count; - return POLLIN | POLLRDNORM; -diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c -index 1fc8f12..20647c1 100644 ---- a/drivers/usb/early/ehci-dbgp.c -+++ b/drivers/usb/early/ehci-dbgp.c -@@ -97,7 +97,8 @@ static inline u32 dbgp_len_update(u32 x, u32 len) - - #ifdef CONFIG_KGDB - static struct kgdb_io kgdbdbgp_io_ops; --#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops) -+static struct kgdb_io kgdbdbgp_io_ops_console; -+#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops || dbg_io_ops == &kgdbdbgp_io_ops_console) - #else - #define dbgp_kgdb_mode (0) - #endif -@@ -1035,6 +1036,13 @@ static struct kgdb_io kgdbdbgp_io_ops = { - .write_char = kgdbdbgp_write_char, - }; - -+static struct kgdb_io kgdbdbgp_io_ops_console = { -+ .name = "kgdbdbgp", -+ .read_char = kgdbdbgp_read_char, -+ .write_char = kgdbdbgp_write_char, -+ .is_console = 1 -+}; -+ - static int kgdbdbgp_wait_time; - - static int __init kgdbdbgp_parse_config(char *str) -@@ -1050,8 +1058,10 @@ static int __init kgdbdbgp_parse_config(char *str) - ptr++; - kgdbdbgp_wait_time = simple_strtoul(ptr, &ptr, 10); - } -- kgdb_register_io_module(&kgdbdbgp_io_ops); -- kgdbdbgp_io_ops.is_console = early_dbgp_console.index != -1; -+ if (early_dbgp_console.index != -1) -+ kgdb_register_io_module(&kgdbdbgp_io_ops_console); -+ else -+ kgdb_register_io_module(&kgdbdbgp_io_ops); - - return 0; - } -diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h -index d6bea3e..60b250e 100644 ---- a/drivers/usb/wusbcore/wa-hc.h -+++ b/drivers/usb/wusbcore/wa-hc.h -@@ -192,7 +192,7 @@ struct wahc { - struct list_head xfer_delayed_list; - spinlock_t xfer_list_lock; - struct work_struct xfer_work; -- atomic_t xfer_id_count; -+ atomic_unchecked_t xfer_id_count; - }; - - -@@ -246,7 +246,7 @@ static inline void wa_init(struct wahc *wa) - INIT_LIST_HEAD(&wa->xfer_delayed_list); - spin_lock_init(&wa->xfer_list_lock); - INIT_WORK(&wa->xfer_work, wa_urb_enqueue_run); -- atomic_set(&wa->xfer_id_count, 1); -+ atomic_set_unchecked(&wa->xfer_id_count, 1); - } - - /** -diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c -index 57c01ab..8a05959 100644 ---- a/drivers/usb/wusbcore/wa-xfer.c -+++ b/drivers/usb/wusbcore/wa-xfer.c -@@ -296,7 +296,7 @@ out: - */ - static void wa_xfer_id_init(struct wa_xfer *xfer) - { -- xfer->id = atomic_add_return(1, &xfer->wa->xfer_id_count); -+ xfer->id = atomic_add_return_unchecked(1, &xfer->wa->xfer_id_count); - } - - /* -diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c -index 51e4c1e..9d87e2a 100644 ---- a/drivers/vhost/vhost.c -+++ b/drivers/vhost/vhost.c -@@ -632,7 +632,7 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m) - return 0; - } - --static long vhost_set_vring(struct vhost_dev *d, int ioctl, void __user *argp) -+static long vhost_set_vring(struct vhost_dev *d, unsigned int ioctl, void __user *argp) - { - struct file *eventfp, *filep = NULL, - *pollstart = NULL, *pollstop = NULL; -diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c -index b0b2ac3..89a4399 100644 ---- a/drivers/video/aty/aty128fb.c -+++ b/drivers/video/aty/aty128fb.c -@@ -148,7 +148,7 @@ enum { - }; - - /* Must match above enum */ --static const char *r128_family[] __devinitdata = { -+static const char *r128_family[] __devinitconst = { - "AGP", - "PCI", - "PRO AGP", -diff --git a/drivers/video/fbcmap.c b/drivers/video/fbcmap.c -index 5c3960d..15cf8fc 100644 ---- a/drivers/video/fbcmap.c -+++ b/drivers/video/fbcmap.c -@@ -285,8 +285,7 @@ int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *info) - rc = -ENODEV; - goto out; - } -- if (cmap->start < 0 || (!info->fbops->fb_setcolreg && -- !info->fbops->fb_setcmap)) { -+ if (!info->fbops->fb_setcolreg && !info->fbops->fb_setcmap) { - rc = -EINVAL; - goto out1; - } -diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c -index c6ce416..3b9b642 100644 ---- a/drivers/video/fbmem.c -+++ b/drivers/video/fbmem.c -@@ -428,7 +428,7 @@ static void fb_do_show_logo(struct fb_info *info, struct fb_image *image, - image->dx += image->width + 8; - } - } else if (rotate == FB_ROTATE_UD) { -- for (x = 0; x < num && image->dx >= 0; x++) { -+ for (x = 0; x < num && (__s32)image->dx >= 0; x++) { - info->fbops->fb_imageblit(info, image); - image->dx -= image->width + 8; - } -@@ -440,7 +440,7 @@ static void fb_do_show_logo(struct fb_info *info, struct fb_image *image, - image->dy += image->height + 8; - } - } else if (rotate == FB_ROTATE_CCW) { -- for (x = 0; x < num && image->dy >= 0; x++) { -+ for (x = 0; x < num && (__s32)image->dy >= 0; x++) { - info->fbops->fb_imageblit(info, image); - image->dy -= image->height + 8; - } -@@ -1157,7 +1157,7 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd, - return -EFAULT; - if (con2fb.console < 1 || con2fb.console > MAX_NR_CONSOLES) - return -EINVAL; -- if (con2fb.framebuffer < 0 || con2fb.framebuffer >= FB_MAX) -+ if (con2fb.framebuffer >= FB_MAX) - return -EINVAL; - if (!registered_fb[con2fb.framebuffer]) - request_module("fb%d", con2fb.framebuffer); -diff --git a/drivers/video/geode/gx1fb_core.c b/drivers/video/geode/gx1fb_core.c -index 5a5d092..265c5ed 100644 ---- a/drivers/video/geode/gx1fb_core.c -+++ b/drivers/video/geode/gx1fb_core.c -@@ -29,7 +29,7 @@ static int crt_option = 1; - static char panel_option[32] = ""; - - /* Modes relevant to the GX1 (taken from modedb.c) */ --static const struct fb_videomode __devinitdata gx1_modedb[] = { -+static const struct fb_videomode __devinitconst gx1_modedb[] = { - /* 640x480-60 VESA */ - { NULL, 60, 640, 480, 39682, 48, 16, 33, 10, 96, 2, - 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, -diff --git a/drivers/video/gxt4500.c b/drivers/video/gxt4500.c -index 0fad23f..0e9afa4 100644 ---- a/drivers/video/gxt4500.c -+++ b/drivers/video/gxt4500.c -@@ -156,7 +156,7 @@ struct gxt4500_par { - static char *mode_option; - - /* default mode: 1280x1024 @ 60 Hz, 8 bpp */ --static const struct fb_videomode defaultmode __devinitdata = { -+static const struct fb_videomode defaultmode __devinitconst = { - .refresh = 60, - .xres = 1280, - .yres = 1024, -@@ -581,7 +581,7 @@ static int gxt4500_blank(int blank, struct fb_info *info) - return 0; - } - --static const struct fb_fix_screeninfo gxt4500_fix __devinitdata = { -+static const struct fb_fix_screeninfo gxt4500_fix __devinitconst = { - .id = "IBM GXT4500P", - .type = FB_TYPE_PACKED_PIXELS, - .visual = FB_VISUAL_PSEUDOCOLOR, -diff --git a/drivers/video/i810/i810_accel.c b/drivers/video/i810/i810_accel.c -index 7672d2e..b56437f 100644 ---- a/drivers/video/i810/i810_accel.c -+++ b/drivers/video/i810/i810_accel.c -@@ -73,6 +73,7 @@ static inline int wait_for_space(struct fb_info *info, u32 space) - } - } - printk("ringbuffer lockup!!!\n"); -+ printk("head:%u tail:%u iring.size:%u space:%u\n", head, tail, par->iring.size, space); - i810_report_error(mmio); - par->dev_flags |= LOCKUP; - info->pixmap.scan_align = 1; -diff --git a/drivers/video/i810/i810_main.c b/drivers/video/i810/i810_main.c -index b83f361..2b05a91 100644 ---- a/drivers/video/i810/i810_main.c -+++ b/drivers/video/i810/i810_main.c -@@ -97,7 +97,7 @@ static int i810fb_blank (int blank_mode, struct fb_info *info); - static void i810fb_release_resource (struct fb_info *info, struct i810fb_par *par); - - /* PCI */ --static const char *i810_pci_list[] __devinitdata = { -+static const char *i810_pci_list[] __devinitconst = { - "Intel(R) 810 Framebuffer Device" , - "Intel(R) 810-DC100 Framebuffer Device" , - "Intel(R) 810E Framebuffer Device" , -diff --git a/drivers/video/jz4740_fb.c b/drivers/video/jz4740_fb.c -index de36693..3c63fc2 100644 ---- a/drivers/video/jz4740_fb.c -+++ b/drivers/video/jz4740_fb.c -@@ -136,7 +136,7 @@ struct jzfb { - uint32_t pseudo_palette[16]; - }; - --static const struct fb_fix_screeninfo jzfb_fix __devinitdata = { -+static const struct fb_fix_screeninfo jzfb_fix __devinitconst = { - .id = "JZ4740 FB", - .type = FB_TYPE_PACKED_PIXELS, - .visual = FB_VISUAL_TRUECOLOR, -diff --git a/drivers/video/logo/logo_linux_clut224.ppm b/drivers/video/logo/logo_linux_clut224.ppm -index 3c14e43..eafa544 100644 ---- a/drivers/video/logo/logo_linux_clut224.ppm -+++ b/drivers/video/logo/logo_linux_clut224.ppm -@@ -1,1604 +1,1123 @@ - P3 --# Standard 224-color Linux logo - 80 80 - 255 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 6 6 6 6 6 6 10 10 10 10 10 10 -- 10 10 10 6 6 6 6 6 6 6 6 6 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 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4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 5 5 5 4 3 3 5 5 5 4 0 0 6 6 6 -+6 6 6 4 0 0 6 6 6 6 6 6 4 0 0 6 6 6 -+4 3 3 5 5 5 5 5 5 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 5 5 5 4 3 3 5 5 5 6 6 6 4 3 3 -+4 3 3 6 6 6 6 6 6 4 3 3 6 6 6 4 3 3 -+5 5 5 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 5 5 5 4 3 3 6 6 6 -+5 5 5 4 3 3 4 3 3 4 3 3 5 5 5 5 5 5 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 4 3 3 -+5 5 5 4 3 3 5 5 5 5 5 5 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 -diff --git a/drivers/video/udlfb.c b/drivers/video/udlfb.c -index a159b63..4ab532d 100644 ---- a/drivers/video/udlfb.c -+++ b/drivers/video/udlfb.c -@@ -620,11 +620,11 @@ int dlfb_handle_damage(struct dlfb_data *dev, int x, int y, - dlfb_urb_completion(urb); - - error: -- atomic_add(bytes_sent, &dev->bytes_sent); -- atomic_add(bytes_identical, &dev->bytes_identical); -- atomic_add(width*height*2, &dev->bytes_rendered); -+ atomic_add_unchecked(bytes_sent, &dev->bytes_sent); -+ atomic_add_unchecked(bytes_identical, &dev->bytes_identical); -+ atomic_add_unchecked(width*height*2, &dev->bytes_rendered); - end_cycles = get_cycles(); -- atomic_add(((unsigned int) ((end_cycles - start_cycles) -+ atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles) - >> 10)), /* Kcycles */ - &dev->cpu_kcycles_used); - -@@ -745,11 +745,11 @@ static void dlfb_dpy_deferred_io(struct fb_info *info, - dlfb_urb_completion(urb); - - error: -- atomic_add(bytes_sent, &dev->bytes_sent); -- atomic_add(bytes_identical, &dev->bytes_identical); -- atomic_add(bytes_rendered, &dev->bytes_rendered); -+ atomic_add_unchecked(bytes_sent, &dev->bytes_sent); -+ atomic_add_unchecked(bytes_identical, &dev->bytes_identical); -+ atomic_add_unchecked(bytes_rendered, &dev->bytes_rendered); - end_cycles = get_cycles(); -- atomic_add(((unsigned int) ((end_cycles - start_cycles) -+ atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles) - >> 10)), /* Kcycles */ - &dev->cpu_kcycles_used); - } -@@ -1373,7 +1373,7 @@ static ssize_t metrics_bytes_rendered_show(struct device *fbdev, - struct fb_info *fb_info = dev_get_drvdata(fbdev); - struct dlfb_data *dev = fb_info->par; - return snprintf(buf, PAGE_SIZE, "%u\n", -- atomic_read(&dev->bytes_rendered)); -+ atomic_read_unchecked(&dev->bytes_rendered)); - } - - static ssize_t metrics_bytes_identical_show(struct device *fbdev, -@@ -1381,7 +1381,7 @@ static ssize_t metrics_bytes_identical_show(struct device *fbdev, - struct fb_info *fb_info = dev_get_drvdata(fbdev); - struct dlfb_data *dev = fb_info->par; - return snprintf(buf, PAGE_SIZE, "%u\n", -- atomic_read(&dev->bytes_identical)); -+ atomic_read_unchecked(&dev->bytes_identical)); - } - - static ssize_t metrics_bytes_sent_show(struct device *fbdev, -@@ -1389,7 +1389,7 @@ static ssize_t metrics_bytes_sent_show(struct device *fbdev, - struct fb_info *fb_info = dev_get_drvdata(fbdev); - struct dlfb_data *dev = fb_info->par; - return snprintf(buf, PAGE_SIZE, "%u\n", -- atomic_read(&dev->bytes_sent)); -+ atomic_read_unchecked(&dev->bytes_sent)); - } - - static ssize_t metrics_cpu_kcycles_used_show(struct device *fbdev, -@@ -1397,7 +1397,7 @@ static ssize_t metrics_cpu_kcycles_used_show(struct device *fbdev, - struct fb_info *fb_info = dev_get_drvdata(fbdev); - struct dlfb_data *dev = fb_info->par; - return snprintf(buf, PAGE_SIZE, "%u\n", -- atomic_read(&dev->cpu_kcycles_used)); -+ atomic_read_unchecked(&dev->cpu_kcycles_used)); - } - - static ssize_t edid_show( -@@ -1457,10 +1457,10 @@ static ssize_t metrics_reset_store(struct device *fbdev, - struct fb_info *fb_info = dev_get_drvdata(fbdev); - struct dlfb_data *dev = fb_info->par; - -- atomic_set(&dev->bytes_rendered, 0); -- atomic_set(&dev->bytes_identical, 0); -- atomic_set(&dev->bytes_sent, 0); -- atomic_set(&dev->cpu_kcycles_used, 0); -+ atomic_set_unchecked(&dev->bytes_rendered, 0); -+ atomic_set_unchecked(&dev->bytes_identical, 0); -+ atomic_set_unchecked(&dev->bytes_sent, 0); -+ atomic_set_unchecked(&dev->cpu_kcycles_used, 0); - - return count; - } -diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c -index b0e2a42..e2df3ad 100644 ---- a/drivers/video/uvesafb.c -+++ b/drivers/video/uvesafb.c -@@ -19,6 +19,7 @@ - #include <linux/io.h> - #include <linux/mutex.h> - #include <linux/slab.h> -+#include <linux/moduleloader.h> - #include <video/edid.h> - #include <video/uvesafb.h> - #ifdef CONFIG_X86 -@@ -569,10 +570,32 @@ static int __devinit uvesafb_vbe_getpmi(struct uvesafb_ktask *task, - if ((task->t.regs.eax & 0xffff) != 0x4f || task->t.regs.es < 0xc000) { - par->pmi_setpal = par->ypan = 0; - } else { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+#ifdef CONFIG_MODULES -+ par->pmi_code = module_alloc_exec((u16)task->t.regs.ecx); -+#endif -+ if (!par->pmi_code) { -+ par->pmi_setpal = par->ypan = 0; -+ return 0; -+ } -+#endif -+ - par->pmi_base = (u16 *)phys_to_virt(((u32)task->t.regs.es << 4) - + task->t.regs.edi); -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) -+ pax_open_kernel(); -+ memcpy(par->pmi_code, par->pmi_base, (u16)task->t.regs.ecx); -+ pax_close_kernel(); -+ -+ par->pmi_start = ktva_ktla(par->pmi_code + par->pmi_base[1]); -+ par->pmi_pal = ktva_ktla(par->pmi_code + par->pmi_base[2]); -+#else - par->pmi_start = (u8 *)par->pmi_base + par->pmi_base[1]; - par->pmi_pal = (u8 *)par->pmi_base + par->pmi_base[2]; -+#endif -+ - printk(KERN_INFO "uvesafb: protected mode interface info at " - "%04x:%04x\n", - (u16)task->t.regs.es, (u16)task->t.regs.edi); -@@ -816,13 +839,14 @@ static int __devinit uvesafb_vbe_init(struct fb_info *info) - par->ypan = ypan; - - if (par->pmi_setpal || par->ypan) { -+#if !defined(CONFIG_MODULES) || !defined(CONFIG_PAX_KERNEXEC) - if (__supported_pte_mask & _PAGE_NX) { - par->pmi_setpal = par->ypan = 0; - printk(KERN_WARNING "uvesafb: NX protection is actively." - "We have better not to use the PMI.\n"); -- } else { -+ } else -+#endif - uvesafb_vbe_getpmi(task, par); -- } - } - #else - /* The protected mode interface is not available on non-x86. */ -@@ -1836,6 +1860,11 @@ out: - if (par->vbe_modes) - kfree(par->vbe_modes); - -+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) -+ if (par->pmi_code) -+ module_free_exec(NULL, par->pmi_code); -+#endif -+ - framebuffer_release(info); - return err; - } -@@ -1862,6 +1891,12 @@ static int uvesafb_remove(struct platform_device *dev) - kfree(par->vbe_state_orig); - if (par->vbe_state_saved) - kfree(par->vbe_state_saved); -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) -+ if (par->pmi_code) -+ module_free_exec(NULL, par->pmi_code); -+#endif -+ - } - - framebuffer_release(info); -diff --git a/drivers/video/vesafb.c b/drivers/video/vesafb.c -index 501b340..86bd4cf 100644 ---- a/drivers/video/vesafb.c -+++ b/drivers/video/vesafb.c -@@ -9,6 +9,7 @@ - */ - - #include <linux/module.h> -+#include <linux/moduleloader.h> - #include <linux/kernel.h> - #include <linux/errno.h> - #include <linux/string.h> -@@ -52,8 +53,8 @@ static int vram_remap __initdata; /* Set amount of memory to be used */ - static int vram_total __initdata; /* Set total amount of memory */ - static int pmi_setpal __read_mostly = 1; /* pmi for palette changes ??? */ - static int ypan __read_mostly; /* 0..nothing, 1..ypan, 2..ywrap */ --static void (*pmi_start)(void) __read_mostly; --static void (*pmi_pal) (void) __read_mostly; -+static void (*pmi_start)(void) __read_only; -+static void (*pmi_pal) (void) __read_only; - static int depth __read_mostly; - static int vga_compat __read_mostly; - /* --------------------------------------------------------------------- */ -@@ -233,6 +234,7 @@ static int __init vesafb_probe(struct platform_device *dev) - unsigned int size_vmode; - unsigned int size_remap; - unsigned int size_total; -+ void *pmi_code = NULL; - - if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB) - return -ENODEV; -@@ -275,10 +277,6 @@ static int __init vesafb_probe(struct platform_device *dev) - size_remap = size_total; - vesafb_fix.smem_len = size_remap; - --#ifndef __i386__ -- screen_info.vesapm_seg = 0; --#endif -- - if (!request_mem_region(vesafb_fix.smem_start, size_total, "vesafb")) { - printk(KERN_WARNING - "vesafb: cannot reserve video memory at 0x%lx\n", -@@ -307,9 +305,21 @@ static int __init vesafb_probe(struct platform_device *dev) - printk(KERN_INFO "vesafb: mode is %dx%dx%d, linelength=%d, pages=%d\n", - vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel, vesafb_fix.line_length, screen_info.pages); - -+#ifdef __i386__ -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) -+ pmi_code = module_alloc_exec(screen_info.vesapm_size); -+ if (!pmi_code) -+#elif !defined(CONFIG_PAX_KERNEXEC) -+ if (0) -+#endif -+ -+#endif -+ screen_info.vesapm_seg = 0; -+ - if (screen_info.vesapm_seg) { -- printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x\n", -- screen_info.vesapm_seg,screen_info.vesapm_off); -+ printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x %04x bytes\n", -+ screen_info.vesapm_seg,screen_info.vesapm_off,screen_info.vesapm_size); - } - - if (screen_info.vesapm_seg < 0xc000) -@@ -317,9 +327,25 @@ static int __init vesafb_probe(struct platform_device *dev) - - if (ypan || pmi_setpal) { - unsigned short *pmi_base; -+ - pmi_base = (unsigned short*)phys_to_virt(((unsigned long)screen_info.vesapm_seg << 4) + screen_info.vesapm_off); -- pmi_start = (void*)((char*)pmi_base + pmi_base[1]); -- pmi_pal = (void*)((char*)pmi_base + pmi_base[2]); -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) -+ pax_open_kernel(); -+ memcpy(pmi_code, pmi_base, screen_info.vesapm_size); -+#else -+ pmi_code = pmi_base; -+#endif -+ -+ pmi_start = (void*)((char*)pmi_code + pmi_base[1]); -+ pmi_pal = (void*)((char*)pmi_code + pmi_base[2]); -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) -+ pmi_start = ktva_ktla(pmi_start); -+ pmi_pal = ktva_ktla(pmi_pal); -+ pax_close_kernel(); -+#endif -+ - printk(KERN_INFO "vesafb: pmi: set display start = %p, set palette = %p\n",pmi_start,pmi_pal); - if (pmi_base[3]) { - printk(KERN_INFO "vesafb: pmi: ports = "); -@@ -488,6 +514,11 @@ static int __init vesafb_probe(struct platform_device *dev) - info->node, info->fix.id); - return 0; - err: -+ -+#if defined(__i386__) && defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) -+ module_free_exec(NULL, pmi_code); -+#endif -+ - if (info->screen_base) - iounmap(info->screen_base); - framebuffer_release(info); -diff --git a/drivers/video/via/via_clock.h b/drivers/video/via/via_clock.h -index 88714ae..16c2e11 100644 ---- a/drivers/video/via/via_clock.h -+++ b/drivers/video/via/via_clock.h -@@ -56,7 +56,7 @@ struct via_clock { - - void (*set_engine_pll_state)(u8 state); - void (*set_engine_pll)(struct via_pll_config config); --}; -+} __no_const; - - - static inline u32 get_pll_internal_frequency(u32 ref_freq, -diff --git a/drivers/xen/xen-pciback/conf_space.h b/drivers/xen/xen-pciback/conf_space.h -index e56c934..fc22f4b 100644 ---- a/drivers/xen/xen-pciback/conf_space.h -+++ b/drivers/xen/xen-pciback/conf_space.h -@@ -44,15 +44,15 @@ struct config_field { - struct { - conf_dword_write write; - conf_dword_read read; -- } dw; -+ } __no_const dw; - struct { - conf_word_write write; - conf_word_read read; -- } w; -+ } __no_const w; - struct { - conf_byte_write write; - conf_byte_read read; -- } b; -+ } __no_const b; - } u; - struct list_head list; - }; -diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c -index 014c8dd..6f3dfe6 100644 ---- a/fs/9p/vfs_inode.c -+++ b/fs/9p/vfs_inode.c -@@ -1303,7 +1303,7 @@ static void *v9fs_vfs_follow_link(struct dentry *dentry, struct nameidata *nd) - void - v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p) - { -- char *s = nd_get_link(nd); -+ const char *s = nd_get_link(nd); - - p9_debug(P9_DEBUG_VFS, " %s %s\n", - dentry->d_name.name, IS_ERR(s) ? "<error>" : s); -diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt -index e95d1b6..3454244 100644 ---- a/fs/Kconfig.binfmt -+++ b/fs/Kconfig.binfmt -@@ -89,7 +89,7 @@ config HAVE_AOUT - - config BINFMT_AOUT - tristate "Kernel support for a.out and ECOFF binaries" -- depends on HAVE_AOUT -+ depends on HAVE_AOUT && BROKEN - ---help--- - A.out (Assembler.OUTput) is a set of formats for libraries and - executables used in the earliest versions of UNIX. Linux used -diff --git a/fs/aio.c b/fs/aio.c -index e7f2fad..15ad8a4 100644 ---- a/fs/aio.c -+++ b/fs/aio.c -@@ -118,7 +118,7 @@ static int aio_setup_ring(struct kioctx *ctx) - size += sizeof(struct io_event) * nr_events; - nr_pages = (size + PAGE_SIZE-1) >> PAGE_SHIFT; - -- if (nr_pages < 0) -+ if (nr_pages <= 0) - return -EINVAL; - - nr_events = (PAGE_SIZE * nr_pages - sizeof(struct aio_ring)) / sizeof(struct io_event); -@@ -1440,18 +1440,19 @@ static ssize_t aio_fsync(struct kiocb *iocb) - static ssize_t aio_setup_vectored_rw(int type, struct kiocb *kiocb, bool compat) - { - ssize_t ret; -+ struct iovec iovstack; - - #ifdef CONFIG_COMPAT - if (compat) - ret = compat_rw_copy_check_uvector(type, - (struct compat_iovec __user *)kiocb->ki_buf, -- kiocb->ki_nbytes, 1, &kiocb->ki_inline_vec, -+ kiocb->ki_nbytes, 1, &iovstack, - &kiocb->ki_iovec, 1); - else - #endif - ret = rw_copy_check_uvector(type, - (struct iovec __user *)kiocb->ki_buf, -- kiocb->ki_nbytes, 1, &kiocb->ki_inline_vec, -+ kiocb->ki_nbytes, 1, &iovstack, - &kiocb->ki_iovec, 1); - if (ret < 0) - goto out; -@@ -1460,6 +1461,10 @@ static ssize_t aio_setup_vectored_rw(int type, struct kiocb *kiocb, bool compat) - if (ret < 0) - goto out; - -+ if (kiocb->ki_iovec == &iovstack) { -+ kiocb->ki_inline_vec = iovstack; -+ kiocb->ki_iovec = &kiocb->ki_inline_vec; -+ } - kiocb->ki_nr_segs = kiocb->ki_nbytes; - kiocb->ki_cur_seg = 0; - /* ki_nbytes/left now reflect bytes instead of segs */ -diff --git a/fs/attr.c b/fs/attr.c -index d94d1b6..f9bccd6 100644 ---- a/fs/attr.c -+++ b/fs/attr.c -@@ -99,6 +99,7 @@ int inode_newsize_ok(const struct inode *inode, loff_t offset) - unsigned long limit; - - limit = rlimit(RLIMIT_FSIZE); -+ gr_learn_resource(current, RLIMIT_FSIZE, (unsigned long)offset, 1); - if (limit != RLIM_INFINITY && offset > limit) - goto out_sig; - if (offset > inode->i_sb->s_maxbytes) -diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c -index da8876d..9f3e6d8 100644 ---- a/fs/autofs4/waitq.c -+++ b/fs/autofs4/waitq.c -@@ -61,7 +61,7 @@ static int autofs4_write(struct autofs_sb_info *sbi, - { - unsigned long sigpipe, flags; - mm_segment_t fs; -- const char *data = (const char *)addr; -+ const char __user *data = (const char __force_user *)addr; - ssize_t wr = 0; - - sigpipe = sigismember(&current->pending.signal, SIGPIPE); -diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c -index e18da23..affc30e 100644 ---- a/fs/befs/linuxvfs.c -+++ b/fs/befs/linuxvfs.c -@@ -502,7 +502,7 @@ static void befs_put_link(struct dentry *dentry, struct nameidata *nd, void *p) - { - befs_inode_info *befs_ino = BEFS_I(dentry->d_inode); - if (befs_ino->i_flags & BEFS_LONG_SYMLINK) { -- char *link = nd_get_link(nd); -+ const char *link = nd_get_link(nd); - if (!IS_ERR(link)) - kfree(link); - } -diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c -index d146e18..12d1bd1 100644 ---- a/fs/binfmt_aout.c -+++ b/fs/binfmt_aout.c -@@ -16,6 +16,7 @@ - #include <linux/string.h> - #include <linux/fs.h> - #include <linux/file.h> -+#include <linux/security.h> - #include <linux/stat.h> - #include <linux/fcntl.h> - #include <linux/ptrace.h> -@@ -83,6 +84,8 @@ static int aout_core_dump(struct coredump_params *cprm) - #endif - # define START_STACK(u) ((void __user *)u.start_stack) - -+ memset(&dump, 0, sizeof(dump)); -+ - fs = get_fs(); - set_fs(KERNEL_DS); - has_dumped = 1; -@@ -94,10 +97,12 @@ static int aout_core_dump(struct coredump_params *cprm) - - /* If the size of the dump file exceeds the rlimit, then see what would happen - if we wrote the stack, but not the data area. */ -+ gr_learn_resource(current, RLIMIT_CORE, (dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE, 1); - if ((dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE > cprm->limit) - dump.u_dsize = 0; - - /* Make sure we have enough room to write the stack and data areas. */ -+ gr_learn_resource(current, RLIMIT_CORE, (dump.u_ssize + 1) * PAGE_SIZE, 1); - if ((dump.u_ssize + 1) * PAGE_SIZE > cprm->limit) - dump.u_ssize = 0; - -@@ -231,6 +236,8 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs) - rlim = rlimit(RLIMIT_DATA); - if (rlim >= RLIM_INFINITY) - rlim = ~0; -+ -+ gr_learn_resource(current, RLIMIT_DATA, ex.a_data + ex.a_bss, 1); - if (ex.a_data + ex.a_bss > rlim) - return -ENOMEM; - -@@ -265,6 +272,27 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs) - - install_exec_creds(bprm); - -+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR) -+ current->mm->pax_flags = 0UL; -+#endif -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!(N_FLAGS(ex) & F_PAX_PAGEEXEC)) { -+ current->mm->pax_flags |= MF_PAX_PAGEEXEC; -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ if (N_FLAGS(ex) & F_PAX_EMUTRAMP) -+ current->mm->pax_flags |= MF_PAX_EMUTRAMP; -+#endif -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (!(N_FLAGS(ex) & F_PAX_MPROTECT)) -+ current->mm->pax_flags |= MF_PAX_MPROTECT; -+#endif -+ -+ } -+#endif -+ - if (N_MAGIC(ex) == OMAGIC) { - unsigned long text_addr, map_size; - loff_t pos; -@@ -330,7 +358,7 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs) - } - - error = vm_mmap(bprm->file, N_DATADDR(ex), ex.a_data, -- PROT_READ | PROT_WRITE | PROT_EXEC, -+ PROT_READ | PROT_WRITE, - MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE, - fd_offset + ex.a_text); - if (error != N_DATADDR(ex)) { -diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c -index 16f7354..185d8dc 100644 ---- a/fs/binfmt_elf.c -+++ b/fs/binfmt_elf.c -@@ -32,6 +32,7 @@ - #include <linux/elf.h> - #include <linux/utsname.h> - #include <linux/coredump.h> -+#include <linux/xattr.h> - #include <asm/uaccess.h> - #include <asm/param.h> - #include <asm/page.h> -@@ -52,6 +53,10 @@ static int elf_core_dump(struct coredump_params *cprm); - #define elf_core_dump NULL - #endif - -+#ifdef CONFIG_PAX_MPROTECT -+static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags); -+#endif -+ - #if ELF_EXEC_PAGESIZE > PAGE_SIZE - #define ELF_MIN_ALIGN ELF_EXEC_PAGESIZE - #else -@@ -71,6 +76,11 @@ static struct linux_binfmt elf_format = { - .load_binary = load_elf_binary, - .load_shlib = load_elf_library, - .core_dump = elf_core_dump, -+ -+#ifdef CONFIG_PAX_MPROTECT -+ .handle_mprotect= elf_handle_mprotect, -+#endif -+ - .min_coredump = ELF_EXEC_PAGESIZE, - }; - -@@ -78,6 +88,8 @@ static struct linux_binfmt elf_format = { - - static int set_brk(unsigned long start, unsigned long end) - { -+ unsigned long e = end; -+ - start = ELF_PAGEALIGN(start); - end = ELF_PAGEALIGN(end); - if (end > start) { -@@ -86,7 +98,7 @@ static int set_brk(unsigned long start, unsigned long end) - if (BAD_ADDR(addr)) - return addr; - } -- current->mm->start_brk = current->mm->brk = end; -+ current->mm->start_brk = current->mm->brk = e; - return 0; - } - -@@ -147,12 +159,13 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec, - elf_addr_t __user *u_rand_bytes; - const char *k_platform = ELF_PLATFORM; - const char *k_base_platform = ELF_BASE_PLATFORM; -- unsigned char k_rand_bytes[16]; -+ u32 k_rand_bytes[4]; - int items; - elf_addr_t *elf_info; - int ei_index = 0; - const struct cred *cred = current_cred(); - struct vm_area_struct *vma; -+ unsigned long saved_auxv[AT_VECTOR_SIZE]; - - /* - * In some cases (e.g. Hyper-Threading), we want to avoid L1 -@@ -194,8 +207,12 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec, - * Generate 16 random bytes for userspace PRNG seeding. - */ - get_random_bytes(k_rand_bytes, sizeof(k_rand_bytes)); -- u_rand_bytes = (elf_addr_t __user *) -- STACK_ALLOC(p, sizeof(k_rand_bytes)); -+ srandom32(k_rand_bytes[0] ^ random32()); -+ srandom32(k_rand_bytes[1] ^ random32()); -+ srandom32(k_rand_bytes[2] ^ random32()); -+ srandom32(k_rand_bytes[3] ^ random32()); -+ p = STACK_ROUND(p, sizeof(k_rand_bytes)); -+ u_rand_bytes = (elf_addr_t __user *) p; - if (__copy_to_user(u_rand_bytes, k_rand_bytes, sizeof(k_rand_bytes))) - return -EFAULT; - -@@ -307,9 +324,11 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec, - return -EFAULT; - current->mm->env_end = p; - -+ memcpy(saved_auxv, elf_info, ei_index * sizeof(elf_addr_t)); -+ - /* Put the elf_info on the stack in the right place. */ - sp = (elf_addr_t __user *)envp + 1; -- if (copy_to_user(sp, elf_info, ei_index * sizeof(elf_addr_t))) -+ if (copy_to_user(sp, saved_auxv, ei_index * sizeof(elf_addr_t))) - return -EFAULT; - return 0; - } -@@ -380,10 +399,10 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex, - { - struct elf_phdr *elf_phdata; - struct elf_phdr *eppnt; -- unsigned long load_addr = 0; -+ unsigned long load_addr = 0, pax_task_size = TASK_SIZE; - int load_addr_set = 0; - unsigned long last_bss = 0, elf_bss = 0; -- unsigned long error = ~0UL; -+ unsigned long error = -EINVAL; - unsigned long total_size; - int retval, i, size; - -@@ -429,6 +448,11 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex, - goto out_close; - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ - eppnt = elf_phdata; - for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) { - if (eppnt->p_type == PT_LOAD) { -@@ -472,8 +496,8 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex, - k = load_addr + eppnt->p_vaddr; - if (BAD_ADDR(k) || - eppnt->p_filesz > eppnt->p_memsz || -- eppnt->p_memsz > TASK_SIZE || -- TASK_SIZE - eppnt->p_memsz < k) { -+ eppnt->p_memsz > pax_task_size || -+ pax_task_size - eppnt->p_memsz < k) { - error = -ENOMEM; - goto out_close; - } -@@ -525,6 +549,351 @@ out: - return error; - } - -+#if defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS) || defined(CONFIG_PAX_XATTR_PAX_FLAGS) -+static unsigned long pax_parse_pt_pax_softmode(const struct elf_phdr * const elf_phdata) -+{ -+ unsigned long pax_flags = 0UL; -+ -+#ifdef CONFIG_PAX_PT_PAX_FLAGS -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (elf_phdata->p_flags & PF_PAGEEXEC) -+ pax_flags |= MF_PAX_PAGEEXEC; -+#endif -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (elf_phdata->p_flags & PF_SEGMEXEC) -+ pax_flags |= MF_PAX_SEGMEXEC; -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC) -+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { -+ if ((__supported_pte_mask & _PAGE_NX)) -+ pax_flags &= ~MF_PAX_SEGMEXEC; -+ else -+ pax_flags &= ~MF_PAX_PAGEEXEC; -+ } -+#endif -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ if (elf_phdata->p_flags & PF_EMUTRAMP) -+ pax_flags |= MF_PAX_EMUTRAMP; -+#endif -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (elf_phdata->p_flags & PF_MPROTECT) -+ pax_flags |= MF_PAX_MPROTECT; -+#endif -+ -+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK) -+ if (randomize_va_space && (elf_phdata->p_flags & PF_RANDMMAP)) -+ pax_flags |= MF_PAX_RANDMMAP; -+#endif -+ -+#endif -+ -+ return pax_flags; -+} -+ -+static unsigned long pax_parse_pt_pax_hardmode(const struct elf_phdr * const elf_phdata) -+{ -+ unsigned long pax_flags = 0UL; -+ -+#ifdef CONFIG_PAX_PT_PAX_FLAGS -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!(elf_phdata->p_flags & PF_NOPAGEEXEC)) -+ pax_flags |= MF_PAX_PAGEEXEC; -+#endif -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (!(elf_phdata->p_flags & PF_NOSEGMEXEC)) -+ pax_flags |= MF_PAX_SEGMEXEC; -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC) -+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { -+ if ((__supported_pte_mask & _PAGE_NX)) -+ pax_flags &= ~MF_PAX_SEGMEXEC; -+ else -+ pax_flags &= ~MF_PAX_PAGEEXEC; -+ } -+#endif -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ if (!(elf_phdata->p_flags & PF_NOEMUTRAMP)) -+ pax_flags |= MF_PAX_EMUTRAMP; -+#endif -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (!(elf_phdata->p_flags & PF_NOMPROTECT)) -+ pax_flags |= MF_PAX_MPROTECT; -+#endif -+ -+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK) -+ if (randomize_va_space && !(elf_phdata->p_flags & PF_NORANDMMAP)) -+ pax_flags |= MF_PAX_RANDMMAP; -+#endif -+ -+#endif -+ -+ return pax_flags; -+} -+ -+static unsigned long pax_parse_ei_pax(const struct elfhdr * const elf_ex) -+{ -+ unsigned long pax_flags = 0UL; -+ -+#ifdef CONFIG_PAX_EI_PAX -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_PAGEEXEC)) -+ pax_flags |= MF_PAX_PAGEEXEC; -+#endif -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_SEGMEXEC)) -+ pax_flags |= MF_PAX_SEGMEXEC; -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC) -+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { -+ if ((__supported_pte_mask & _PAGE_NX)) -+ pax_flags &= ~MF_PAX_SEGMEXEC; -+ else -+ pax_flags &= ~MF_PAX_PAGEEXEC; -+ } -+#endif -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && (elf_ex->e_ident[EI_PAX] & EF_PAX_EMUTRAMP)) -+ pax_flags |= MF_PAX_EMUTRAMP; -+#endif -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && !(elf_ex->e_ident[EI_PAX] & EF_PAX_MPROTECT)) -+ pax_flags |= MF_PAX_MPROTECT; -+#endif -+ -+#ifdef CONFIG_PAX_ASLR -+ if (randomize_va_space && !(elf_ex->e_ident[EI_PAX] & EF_PAX_RANDMMAP)) -+ pax_flags |= MF_PAX_RANDMMAP; -+#endif -+ -+#else -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ pax_flags |= MF_PAX_PAGEEXEC; -+#endif -+ -+#ifdef CONFIG_PAX_MPROTECT -+ pax_flags |= MF_PAX_MPROTECT; -+#endif -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ pax_flags |= MF_PAX_RANDMMAP; -+#endif -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (!(pax_flags & MF_PAX_PAGEEXEC) || !(__supported_pte_mask & _PAGE_NX)) { -+ pax_flags &= ~MF_PAX_PAGEEXEC; -+ pax_flags |= MF_PAX_SEGMEXEC; -+ } -+#endif -+ -+#endif -+ -+ return pax_flags; -+} -+ -+static unsigned long pax_parse_pt_pax(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata) -+{ -+ -+#ifdef CONFIG_PAX_PT_PAX_FLAGS -+ unsigned long i; -+ -+ for (i = 0UL; i < elf_ex->e_phnum; i++) -+ if (elf_phdata[i].p_type == PT_PAX_FLAGS) { -+ if (((elf_phdata[i].p_flags & PF_PAGEEXEC) && (elf_phdata[i].p_flags & PF_NOPAGEEXEC)) || -+ ((elf_phdata[i].p_flags & PF_SEGMEXEC) && (elf_phdata[i].p_flags & PF_NOSEGMEXEC)) || -+ ((elf_phdata[i].p_flags & PF_EMUTRAMP) && (elf_phdata[i].p_flags & PF_NOEMUTRAMP)) || -+ ((elf_phdata[i].p_flags & PF_MPROTECT) && (elf_phdata[i].p_flags & PF_NOMPROTECT)) || -+ ((elf_phdata[i].p_flags & PF_RANDMMAP) && (elf_phdata[i].p_flags & PF_NORANDMMAP))) -+ return ~0UL; -+ -+#ifdef CONFIG_PAX_SOFTMODE -+ if (pax_softmode) -+ return pax_parse_pt_pax_softmode(&elf_phdata[i]); -+ else -+#endif -+ -+ return pax_parse_pt_pax_hardmode(&elf_phdata[i]); -+ break; -+ } -+#endif -+ -+ return ~0UL; -+} -+ -+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS -+static unsigned long pax_parse_xattr_pax_softmode(unsigned long pax_flags_softmode) -+{ -+ unsigned long pax_flags = 0UL; -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (pax_flags_softmode & MF_PAX_PAGEEXEC) -+ pax_flags |= MF_PAX_PAGEEXEC; -+#endif -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (pax_flags_softmode & MF_PAX_SEGMEXEC) -+ pax_flags |= MF_PAX_SEGMEXEC; -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC) -+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { -+ if ((__supported_pte_mask & _PAGE_NX)) -+ pax_flags &= ~MF_PAX_SEGMEXEC; -+ else -+ pax_flags &= ~MF_PAX_PAGEEXEC; -+ } -+#endif -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ if (pax_flags_softmode & MF_PAX_EMUTRAMP) -+ pax_flags |= MF_PAX_EMUTRAMP; -+#endif -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (pax_flags_softmode & MF_PAX_MPROTECT) -+ pax_flags |= MF_PAX_MPROTECT; -+#endif -+ -+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK) -+ if (randomize_va_space && (pax_flags_softmode & MF_PAX_RANDMMAP)) -+ pax_flags |= MF_PAX_RANDMMAP; -+#endif -+ -+ return pax_flags; -+} -+ -+static unsigned long pax_parse_xattr_pax_hardmode(unsigned long pax_flags_hardmode) -+{ -+ unsigned long pax_flags = 0UL; -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!(pax_flags_hardmode & MF_PAX_PAGEEXEC)) -+ pax_flags |= MF_PAX_PAGEEXEC; -+#endif -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (!(pax_flags_hardmode & MF_PAX_SEGMEXEC)) -+ pax_flags |= MF_PAX_SEGMEXEC; -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC) -+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { -+ if ((__supported_pte_mask & _PAGE_NX)) -+ pax_flags &= ~MF_PAX_SEGMEXEC; -+ else -+ pax_flags &= ~MF_PAX_PAGEEXEC; -+ } -+#endif -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ if (!(pax_flags_hardmode & MF_PAX_EMUTRAMP)) -+ pax_flags |= MF_PAX_EMUTRAMP; -+#endif -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (!(pax_flags_hardmode & MF_PAX_MPROTECT)) -+ pax_flags |= MF_PAX_MPROTECT; -+#endif -+ -+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK) -+ if (randomize_va_space && !(pax_flags_hardmode & MF_PAX_RANDMMAP)) -+ pax_flags |= MF_PAX_RANDMMAP; -+#endif -+ -+ return pax_flags; -+} -+#endif -+ -+static unsigned long pax_parse_xattr_pax(struct file * const file) -+{ -+ -+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS -+ ssize_t xattr_size, i; -+ unsigned char xattr_value[5]; -+ unsigned long pax_flags_hardmode = 0UL, pax_flags_softmode = 0UL; -+ -+ xattr_size = vfs_getxattr(file->f_path.dentry, XATTR_NAME_PAX_FLAGS, xattr_value, sizeof xattr_value); -+ if (xattr_size <= 0) -+ return ~0UL; -+ -+ for (i = 0; i < xattr_size; i++) -+ switch (xattr_value[i]) { -+ default: -+ return ~0UL; -+ -+#define parse_flag(option1, option2, flag) \ -+ case option1: \ -+ pax_flags_hardmode |= MF_PAX_##flag; \ -+ break; \ -+ case option2: \ -+ pax_flags_softmode |= MF_PAX_##flag; \ -+ break; -+ -+ parse_flag('p', 'P', PAGEEXEC); -+ parse_flag('e', 'E', EMUTRAMP); -+ parse_flag('m', 'M', MPROTECT); -+ parse_flag('r', 'R', RANDMMAP); -+ parse_flag('s', 'S', SEGMEXEC); -+ -+#undef parse_flag -+ } -+ -+ if (pax_flags_hardmode & pax_flags_softmode) -+ return ~0UL; -+ -+#ifdef CONFIG_PAX_SOFTMODE -+ if (pax_softmode) -+ return pax_parse_xattr_pax_softmode(pax_flags_softmode); -+ else -+#endif -+ -+ return pax_parse_xattr_pax_hardmode(pax_flags_hardmode); -+#else -+ return ~0UL; -+#endif -+ -+} -+ -+static long pax_parse_pax_flags(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata, struct file * const file) -+{ -+ unsigned long pax_flags, pt_pax_flags, xattr_pax_flags; -+ -+ pax_flags = pax_parse_ei_pax(elf_ex); -+ pt_pax_flags = pax_parse_pt_pax(elf_ex, elf_phdata); -+ xattr_pax_flags = pax_parse_xattr_pax(file); -+ -+ if (pt_pax_flags == ~0UL) -+ pt_pax_flags = xattr_pax_flags; -+ else if (xattr_pax_flags == ~0UL) -+ xattr_pax_flags = pt_pax_flags; -+ if (pt_pax_flags != xattr_pax_flags) -+ return -EINVAL; -+ if (pt_pax_flags != ~0UL) -+ pax_flags = pt_pax_flags; -+ -+ if (0 > pax_check_flags(&pax_flags)) -+ return -EINVAL; -+ -+ current->mm->pax_flags = pax_flags; -+ return 0; -+} -+#endif -+ - /* - * These are the functions used to load ELF style executables and shared - * libraries. There is no binary dependent code anywhere else. -@@ -541,6 +910,11 @@ static unsigned long randomize_stack_top(unsigned long stack_top) - { - unsigned int random_variable = 0; - -+#ifdef CONFIG_PAX_RANDUSTACK -+ if (randomize_va_space) -+ return stack_top - current->mm->delta_stack; -+#endif -+ - if ((current->flags & PF_RANDOMIZE) && - !(current->personality & ADDR_NO_RANDOMIZE)) { - random_variable = get_random_int() & STACK_RND_MASK; -@@ -559,7 +933,7 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) - unsigned long load_addr = 0, load_bias = 0; - int load_addr_set = 0; - char * elf_interpreter = NULL; -- unsigned long error; -+ unsigned long error = 0; - struct elf_phdr *elf_ppnt, *elf_phdata; - unsigned long elf_bss, elf_brk; - int retval, i; -@@ -569,11 +943,11 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) - unsigned long start_code, end_code, start_data, end_data; - unsigned long reloc_func_desc __maybe_unused = 0; - int executable_stack = EXSTACK_DEFAULT; -- unsigned long def_flags = 0; - struct { - struct elfhdr elf_ex; - struct elfhdr interp_elf_ex; - } *loc; -+ unsigned long pax_task_size = TASK_SIZE; - - loc = kmalloc(sizeof(*loc), GFP_KERNEL); - if (!loc) { -@@ -709,11 +1083,81 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) - goto out_free_dentry; - - /* OK, This is the point of no return */ -- current->mm->def_flags = def_flags; -+ -+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR) -+ current->mm->pax_flags = 0UL; -+#endif -+ -+#ifdef CONFIG_PAX_DLRESOLVE -+ current->mm->call_dl_resolve = 0UL; -+#endif -+ -+#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT) -+ current->mm->call_syscall = 0UL; -+#endif -+ -+#ifdef CONFIG_PAX_ASLR -+ current->mm->delta_mmap = 0UL; -+ current->mm->delta_stack = 0UL; -+#endif -+ -+ current->mm->def_flags = 0; -+ -+#if defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS) || defined(CONFIG_PAX_XATTR_PAX_FLAGS) -+ if (0 > pax_parse_pax_flags(&loc->elf_ex, elf_phdata, bprm->file)) { -+ send_sig(SIGKILL, current, 0); -+ goto out_free_dentry; -+ } -+#endif -+ -+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS -+ pax_set_initial_flags(bprm); -+#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS) -+ if (pax_set_initial_flags_func) -+ (pax_set_initial_flags_func)(bprm); -+#endif -+ -+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT -+ if ((current->mm->pax_flags & MF_PAX_PAGEEXEC) && !(__supported_pte_mask & _PAGE_NX)) { -+ current->mm->context.user_cs_limit = PAGE_SIZE; -+ current->mm->def_flags |= VM_PAGEEXEC; -+ } -+#endif -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) { -+ current->mm->context.user_cs_base = SEGMEXEC_TASK_SIZE; -+ current->mm->context.user_cs_limit = TASK_SIZE-SEGMEXEC_TASK_SIZE; -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+ current->mm->def_flags |= VM_NOHUGEPAGE; -+ } -+#endif -+ -+#if defined(CONFIG_ARCH_TRACK_EXEC_LIMIT) || defined(CONFIG_PAX_SEGMEXEC) -+ if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { -+ set_user_cs(current->mm->context.user_cs_base, current->mm->context.user_cs_limit, get_cpu()); -+ put_cpu(); -+ } -+#endif - - /* Do this immediately, since STACK_TOP as used in setup_arg_pages - may depend on the personality. */ - SET_PERSONALITY(loc->elf_ex); -+ -+#ifdef CONFIG_PAX_ASLR -+ if (current->mm->pax_flags & MF_PAX_RANDMMAP) { -+ current->mm->delta_mmap = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN)-1)) << PAGE_SHIFT; -+ current->mm->delta_stack = (pax_get_random_long() & ((1UL << PAX_DELTA_STACK_LEN)-1)) << PAGE_SHIFT; -+ } -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { -+ executable_stack = EXSTACK_DISABLE_X; -+ current->personality &= ~READ_IMPLIES_EXEC; -+ } else -+#endif -+ - if (elf_read_implies_exec(loc->elf_ex, executable_stack)) - current->personality |= READ_IMPLIES_EXEC; - -@@ -804,6 +1248,20 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) - #else - load_bias = ELF_PAGESTART(ELF_ET_DYN_BASE - vaddr); - #endif -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ /* PaX: randomize base address at the default exe base if requested */ -+ if ((current->mm->pax_flags & MF_PAX_RANDMMAP) && elf_interpreter) { -+#ifdef CONFIG_SPARC64 -+ load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << (PAGE_SHIFT+1); -+#else -+ load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << PAGE_SHIFT; -+#endif -+ load_bias = ELF_PAGESTART(PAX_ELF_ET_DYN_BASE - vaddr + load_bias); -+ elf_flags |= MAP_FIXED; -+ } -+#endif -+ - } - - error = elf_map(bprm->file, load_bias + vaddr, elf_ppnt, -@@ -836,9 +1294,9 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) - * allowed task size. Note that p_filesz must always be - * <= p_memsz so it is only necessary to check p_memsz. - */ -- if (BAD_ADDR(k) || elf_ppnt->p_filesz > elf_ppnt->p_memsz || -- elf_ppnt->p_memsz > TASK_SIZE || -- TASK_SIZE - elf_ppnt->p_memsz < k) { -+ if (k >= pax_task_size || elf_ppnt->p_filesz > elf_ppnt->p_memsz || -+ elf_ppnt->p_memsz > pax_task_size || -+ pax_task_size - elf_ppnt->p_memsz < k) { - /* set_brk can never work. Avoid overflows. */ - send_sig(SIGKILL, current, 0); - retval = -EINVAL; -@@ -877,11 +1335,40 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) - goto out_free_dentry; - } - if (likely(elf_bss != elf_brk) && unlikely(padzero(elf_bss))) { -- send_sig(SIGSEGV, current, 0); -- retval = -EFAULT; /* Nobody gets to see this, but.. */ -- goto out_free_dentry; -+ /* -+ * This bss-zeroing can fail if the ELF -+ * file specifies odd protections. So -+ * we don't check the return value -+ */ - } - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (current->mm->pax_flags & MF_PAX_RANDMMAP) { -+ unsigned long start, size; -+ -+ start = ELF_PAGEALIGN(elf_brk); -+ size = PAGE_SIZE + ((pax_get_random_long() & ((1UL << 22) - 1UL)) << 4); -+ down_write(&current->mm->mmap_sem); -+ retval = -ENOMEM; -+ if (!find_vma_intersection(current->mm, start, start + size + PAGE_SIZE)) { -+ unsigned long prot = PROT_NONE; -+ -+ current->mm->brk_gap = PAGE_ALIGN(size) >> PAGE_SHIFT; -+// if (current->personality & ADDR_NO_RANDOMIZE) -+// prot = PROT_READ; -+ start = do_mmap(NULL, start, size, prot, MAP_ANONYMOUS | MAP_FIXED | MAP_PRIVATE, 0); -+ retval = IS_ERR_VALUE(start) ? start : 0; -+ } -+ up_write(&current->mm->mmap_sem); -+ if (retval == 0) -+ retval = set_brk(start + size, start + size + PAGE_SIZE); -+ if (retval < 0) { -+ send_sig(SIGKILL, current, 0); -+ goto out_free_dentry; -+ } -+ } -+#endif -+ - if (elf_interpreter) { - unsigned long uninitialized_var(interp_map_addr); - -@@ -1109,7 +1596,7 @@ static bool always_dump_vma(struct vm_area_struct *vma) - * Decide what to dump of a segment, part, all or none. - */ - static unsigned long vma_dump_size(struct vm_area_struct *vma, -- unsigned long mm_flags) -+ unsigned long mm_flags, long signr) - { - #define FILTER(type) (mm_flags & (1UL << MMF_DUMP_##type)) - -@@ -1146,7 +1633,7 @@ static unsigned long vma_dump_size(struct vm_area_struct *vma, - if (vma->vm_file == NULL) - return 0; - -- if (FILTER(MAPPED_PRIVATE)) -+ if (signr == SIGKILL || FILTER(MAPPED_PRIVATE)) - goto whole; - - /* -@@ -1368,9 +1855,9 @@ static void fill_auxv_note(struct memelfnote *note, struct mm_struct *mm) - { - elf_addr_t *auxv = (elf_addr_t *) mm->saved_auxv; - int i = 0; -- do -+ do { - i += 2; -- while (auxv[i - 2] != AT_NULL); -+ } while (auxv[i - 2] != AT_NULL); - fill_note(note, "CORE", NT_AUXV, i * sizeof(elf_addr_t), auxv); - } - -@@ -1892,14 +2379,14 @@ static void fill_extnum_info(struct elfhdr *elf, struct elf_shdr *shdr4extnum, - } - - static size_t elf_core_vma_data_size(struct vm_area_struct *gate_vma, -- unsigned long mm_flags) -+ struct coredump_params *cprm) - { - struct vm_area_struct *vma; - size_t size = 0; - - for (vma = first_vma(current, gate_vma); vma != NULL; - vma = next_vma(vma, gate_vma)) -- size += vma_dump_size(vma, mm_flags); -+ size += vma_dump_size(vma, cprm->mm_flags, cprm->signr); - return size; - } - -@@ -1993,7 +2480,7 @@ static int elf_core_dump(struct coredump_params *cprm) - - dataoff = offset = roundup(offset, ELF_EXEC_PAGESIZE); - -- offset += elf_core_vma_data_size(gate_vma, cprm->mm_flags); -+ offset += elf_core_vma_data_size(gate_vma, cprm); - offset += elf_core_extra_data_size(); - e_shoff = offset; - -@@ -2007,10 +2494,12 @@ static int elf_core_dump(struct coredump_params *cprm) - offset = dataoff; - - size += sizeof(*elf); -+ gr_learn_resource(current, RLIMIT_CORE, size, 1); - if (size > cprm->limit || !dump_write(cprm->file, elf, sizeof(*elf))) - goto end_coredump; - - size += sizeof(*phdr4note); -+ gr_learn_resource(current, RLIMIT_CORE, size, 1); - if (size > cprm->limit - || !dump_write(cprm->file, phdr4note, sizeof(*phdr4note))) - goto end_coredump; -@@ -2024,7 +2513,7 @@ static int elf_core_dump(struct coredump_params *cprm) - phdr.p_offset = offset; - phdr.p_vaddr = vma->vm_start; - phdr.p_paddr = 0; -- phdr.p_filesz = vma_dump_size(vma, cprm->mm_flags); -+ phdr.p_filesz = vma_dump_size(vma, cprm->mm_flags, cprm->signr); - phdr.p_memsz = vma->vm_end - vma->vm_start; - offset += phdr.p_filesz; - phdr.p_flags = vma->vm_flags & VM_READ ? PF_R : 0; -@@ -2035,6 +2524,7 @@ static int elf_core_dump(struct coredump_params *cprm) - phdr.p_align = ELF_EXEC_PAGESIZE; - - size += sizeof(phdr); -+ gr_learn_resource(current, RLIMIT_CORE, size, 1); - if (size > cprm->limit - || !dump_write(cprm->file, &phdr, sizeof(phdr))) - goto end_coredump; -@@ -2059,7 +2549,7 @@ static int elf_core_dump(struct coredump_params *cprm) - unsigned long addr; - unsigned long end; - -- end = vma->vm_start + vma_dump_size(vma, cprm->mm_flags); -+ end = vma->vm_start + vma_dump_size(vma, cprm->mm_flags, cprm->signr); - - for (addr = vma->vm_start; addr < end; addr += PAGE_SIZE) { - struct page *page; -@@ -2068,6 +2558,7 @@ static int elf_core_dump(struct coredump_params *cprm) - page = get_dump_page(addr); - if (page) { - void *kaddr = kmap(page); -+ gr_learn_resource(current, RLIMIT_CORE, size + PAGE_SIZE, 1); - stop = ((size += PAGE_SIZE) > cprm->limit) || - !dump_write(cprm->file, kaddr, - PAGE_SIZE); -@@ -2085,6 +2576,7 @@ static int elf_core_dump(struct coredump_params *cprm) - - if (e_phnum == PN_XNUM) { - size += sizeof(*shdr4extnum); -+ gr_learn_resource(current, RLIMIT_CORE, size, 1); - if (size > cprm->limit - || !dump_write(cprm->file, shdr4extnum, - sizeof(*shdr4extnum))) -@@ -2105,6 +2597,97 @@ out: - - #endif /* CONFIG_ELF_CORE */ - -+#ifdef CONFIG_PAX_MPROTECT -+/* PaX: non-PIC ELF libraries need relocations on their executable segments -+ * therefore we'll grant them VM_MAYWRITE once during their life. Similarly -+ * we'll remove VM_MAYWRITE for good on RELRO segments. -+ * -+ * The checks favour ld-linux.so behaviour which operates on a per ELF segment -+ * basis because we want to allow the common case and not the special ones. -+ */ -+static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags) -+{ -+ struct elfhdr elf_h; -+ struct elf_phdr elf_p; -+ unsigned long i; -+ unsigned long oldflags; -+ bool is_textrel_rw, is_textrel_rx, is_relro; -+ -+ if (!(vma->vm_mm->pax_flags & MF_PAX_MPROTECT)) -+ return; -+ -+ oldflags = vma->vm_flags & (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ); -+ newflags &= VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ; -+ -+#ifdef CONFIG_PAX_ELFRELOCS -+ /* possible TEXTREL */ -+ is_textrel_rw = vma->vm_file && !vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYREAD | VM_EXEC | VM_READ) && newflags == (VM_WRITE | VM_READ); -+ is_textrel_rx = vma->vm_file && vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_WRITE | VM_READ) && newflags == (VM_EXEC | VM_READ); -+#else -+ is_textrel_rw = false; -+ is_textrel_rx = false; -+#endif -+ -+ /* possible RELRO */ -+ is_relro = vma->vm_file && vma->anon_vma && oldflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ) && newflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ); -+ -+ if (!is_textrel_rw && !is_textrel_rx && !is_relro) -+ return; -+ -+ if (sizeof(elf_h) != kernel_read(vma->vm_file, 0UL, (char *)&elf_h, sizeof(elf_h)) || -+ memcmp(elf_h.e_ident, ELFMAG, SELFMAG) || -+ -+#ifdef CONFIG_PAX_ETEXECRELOCS -+ ((is_textrel_rw || is_textrel_rx) && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) || -+#else -+ ((is_textrel_rw || is_textrel_rx) && elf_h.e_type != ET_DYN) || -+#endif -+ -+ (is_relro && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) || -+ !elf_check_arch(&elf_h) || -+ elf_h.e_phentsize != sizeof(struct elf_phdr) || -+ elf_h.e_phnum > 65536UL / sizeof(struct elf_phdr)) -+ return; -+ -+ for (i = 0UL; i < elf_h.e_phnum; i++) { -+ if (sizeof(elf_p) != kernel_read(vma->vm_file, elf_h.e_phoff + i*sizeof(elf_p), (char *)&elf_p, sizeof(elf_p))) -+ return; -+ switch (elf_p.p_type) { -+ case PT_DYNAMIC: -+ if (!is_textrel_rw && !is_textrel_rx) -+ continue; -+ i = 0UL; -+ while ((i+1) * sizeof(elf_dyn) <= elf_p.p_filesz) { -+ elf_dyn dyn; -+ -+ if (sizeof(dyn) != kernel_read(vma->vm_file, elf_p.p_offset + i*sizeof(dyn), (char *)&dyn, sizeof(dyn))) -+ return; -+ if (dyn.d_tag == DT_NULL) -+ return; -+ if (dyn.d_tag == DT_TEXTREL || (dyn.d_tag == DT_FLAGS && (dyn.d_un.d_val & DF_TEXTREL))) { -+ gr_log_textrel(vma); -+ if (is_textrel_rw) -+ vma->vm_flags |= VM_MAYWRITE; -+ else -+ /* PaX: disallow write access after relocs are done, hopefully noone else needs it... */ -+ vma->vm_flags &= ~VM_MAYWRITE; -+ return; -+ } -+ i++; -+ } -+ return; -+ -+ case PT_GNU_RELRO: -+ if (!is_relro) -+ continue; -+ if ((elf_p.p_offset >> PAGE_SHIFT) == vma->vm_pgoff && ELF_PAGEALIGN(elf_p.p_memsz) == vma->vm_end - vma->vm_start) -+ vma->vm_flags &= ~VM_MAYWRITE; -+ return; -+ } -+ } -+} -+#endif -+ - static int __init init_elf_binfmt(void) - { - register_binfmt(&elf_format); -diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c -index 6b2daf9..a70dccb 100644 ---- a/fs/binfmt_flat.c -+++ b/fs/binfmt_flat.c -@@ -562,7 +562,9 @@ static int load_flat_file(struct linux_binprm * bprm, - realdatastart = (unsigned long) -ENOMEM; - printk("Unable to allocate RAM for process data, errno %d\n", - (int)-realdatastart); -+ down_write(&current->mm->mmap_sem); - do_munmap(current->mm, textpos, text_len); -+ up_write(&current->mm->mmap_sem); - ret = realdatastart; - goto err; - } -@@ -586,8 +588,10 @@ static int load_flat_file(struct linux_binprm * bprm, - } - if (IS_ERR_VALUE(result)) { - printk("Unable to read data+bss, errno %d\n", (int)-result); -+ down_write(&current->mm->mmap_sem); - do_munmap(current->mm, textpos, text_len); - do_munmap(current->mm, realdatastart, len); -+ up_write(&current->mm->mmap_sem); - ret = result; - goto err; - } -@@ -654,8 +658,10 @@ static int load_flat_file(struct linux_binprm * bprm, - } - if (IS_ERR_VALUE(result)) { - printk("Unable to read code+data+bss, errno %d\n",(int)-result); -+ down_write(&current->mm->mmap_sem); - do_munmap(current->mm, textpos, text_len + data_len + extra + - MAX_SHARED_LIBS * sizeof(unsigned long)); -+ up_write(&current->mm->mmap_sem); - ret = result; - goto err; - } -diff --git a/fs/bio.c b/fs/bio.c -index 84da885..2149cd9 100644 ---- a/fs/bio.c -+++ b/fs/bio.c -@@ -838,7 +838,7 @@ struct bio *bio_copy_user_iov(struct request_queue *q, - /* - * Overflow, abort - */ -- if (end < start) -+ if (end < start || end - start > INT_MAX - nr_pages) - return ERR_PTR(-EINVAL); - - nr_pages += end - start; -@@ -1234,7 +1234,7 @@ static void bio_copy_kern_endio(struct bio *bio, int err) - const int read = bio_data_dir(bio) == READ; - struct bio_map_data *bmd = bio->bi_private; - int i; -- char *p = bmd->sgvecs[0].iov_base; -+ char *p = (char __force_kernel *)bmd->sgvecs[0].iov_base; - - __bio_for_each_segment(bvec, bio, i, 0) { - char *addr = page_address(bvec->bv_page); -diff --git a/fs/block_dev.c b/fs/block_dev.c -index ba11c30..623d736 100644 ---- a/fs/block_dev.c -+++ b/fs/block_dev.c -@@ -704,7 +704,7 @@ static bool bd_may_claim(struct block_device *bdev, struct block_device *whole, - else if (bdev->bd_contains == bdev) - return true; /* is a whole device which isn't held */ - -- else if (whole->bd_holder == bd_may_claim) -+ else if (whole->bd_holder == (void *)bd_may_claim) - return true; /* is a partition of a device that is being partitioned */ - else if (whole->bd_holder != NULL) - return false; /* is a partition of a held device */ -diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c -index c053e90..e5f1afc 100644 ---- a/fs/btrfs/check-integrity.c -+++ b/fs/btrfs/check-integrity.c -@@ -156,7 +156,7 @@ struct btrfsic_block { - union { - bio_end_io_t *bio; - bh_end_io_t *bh; -- } orig_bio_bh_end_io; -+ } __no_const orig_bio_bh_end_io; - int submit_bio_bh_rw; - u64 flush_gen; /* only valid if !never_written */ - }; -diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c -index 4106264..8157ede 100644 ---- a/fs/btrfs/ctree.c -+++ b/fs/btrfs/ctree.c -@@ -513,9 +513,12 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans, - free_extent_buffer(buf); - add_root_to_dirty_list(root); - } else { -- if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID) -- parent_start = parent->start; -- else -+ if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID) { -+ if (parent) -+ parent_start = parent->start; -+ else -+ parent_start = 0; -+ } else - parent_start = 0; - - WARN_ON(trans->transid != btrfs_header_generation(parent)); -diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c -index 0df0d1f..4bdcbfe 100644 ---- a/fs/btrfs/inode.c -+++ b/fs/btrfs/inode.c -@@ -7074,7 +7074,7 @@ fail: - return -ENOMEM; - } - --static int btrfs_getattr(struct vfsmount *mnt, -+int btrfs_getattr(struct vfsmount *mnt, - struct dentry *dentry, struct kstat *stat) - { - struct inode *inode = dentry->d_inode; -@@ -7088,6 +7088,14 @@ static int btrfs_getattr(struct vfsmount *mnt, - return 0; - } - -+EXPORT_SYMBOL(btrfs_getattr); -+ -+dev_t get_btrfs_dev_from_inode(struct inode *inode) -+{ -+ return BTRFS_I(inode)->root->anon_dev; -+} -+EXPORT_SYMBOL(get_btrfs_dev_from_inode); -+ - /* - * If a file is moved, it will inherit the cow and compression flags of the new - * directory. -diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c -index 14f8e1f..ab8d81f 100644 ---- a/fs/btrfs/ioctl.c -+++ b/fs/btrfs/ioctl.c -@@ -2882,9 +2882,12 @@ long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg) - for (i = 0; i < num_types; i++) { - struct btrfs_space_info *tmp; - -+ /* Don't copy in more than we allocated */ - if (!slot_count) - break; - -+ slot_count--; -+ - info = NULL; - rcu_read_lock(); - list_for_each_entry_rcu(tmp, &root->fs_info->space_info, -@@ -2906,15 +2909,12 @@ long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg) - memcpy(dest, &space, sizeof(space)); - dest++; - space_args.total_spaces++; -- slot_count--; - } -- if (!slot_count) -- break; - } - up_read(&info->groups_sem); - } - -- user_dest = (struct btrfs_ioctl_space_info *) -+ user_dest = (struct btrfs_ioctl_space_info __user *) - (arg + sizeof(struct btrfs_ioctl_space_args)); - - if (copy_to_user(user_dest, dest_orig, alloc_size)) -diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c -index 646ee21..f020f87 100644 ---- a/fs/btrfs/relocation.c -+++ b/fs/btrfs/relocation.c -@@ -1268,7 +1268,7 @@ static int __update_reloc_root(struct btrfs_root *root, int del) - } - spin_unlock(&rc->reloc_root_tree.lock); - -- BUG_ON((struct btrfs_root *)node->data != root); -+ BUG_ON(!node || (struct btrfs_root *)node->data != root); - - if (!del) { - spin_lock(&rc->reloc_root_tree.lock); -diff --git a/fs/cachefiles/bind.c b/fs/cachefiles/bind.c -index 622f469..e8d2d55 100644 ---- a/fs/cachefiles/bind.c -+++ b/fs/cachefiles/bind.c -@@ -39,13 +39,11 @@ int cachefiles_daemon_bind(struct cachefiles_cache *cache, char *args) - args); - - /* start by checking things over */ -- ASSERT(cache->fstop_percent >= 0 && -- cache->fstop_percent < cache->fcull_percent && -+ ASSERT(cache->fstop_percent < cache->fcull_percent && - cache->fcull_percent < cache->frun_percent && - cache->frun_percent < 100); - -- ASSERT(cache->bstop_percent >= 0 && -- cache->bstop_percent < cache->bcull_percent && -+ ASSERT(cache->bstop_percent < cache->bcull_percent && - cache->bcull_percent < cache->brun_percent && - cache->brun_percent < 100); - -diff --git a/fs/cachefiles/daemon.c b/fs/cachefiles/daemon.c -index 0a1467b..6a53245 100644 ---- a/fs/cachefiles/daemon.c -+++ b/fs/cachefiles/daemon.c -@@ -196,7 +196,7 @@ static ssize_t cachefiles_daemon_read(struct file *file, char __user *_buffer, - if (n > buflen) - return -EMSGSIZE; - -- if (copy_to_user(_buffer, buffer, n) != 0) -+ if (n > sizeof(buffer) || copy_to_user(_buffer, buffer, n) != 0) - return -EFAULT; - - return n; -@@ -222,7 +222,7 @@ static ssize_t cachefiles_daemon_write(struct file *file, - if (test_bit(CACHEFILES_DEAD, &cache->flags)) - return -EIO; - -- if (datalen < 0 || datalen > PAGE_SIZE - 1) -+ if (datalen > PAGE_SIZE - 1) - return -EOPNOTSUPP; - - /* drag the command string into the kernel so we can parse it */ -@@ -386,7 +386,7 @@ static int cachefiles_daemon_fstop(struct cachefiles_cache *cache, char *args) - if (args[0] != '%' || args[1] != '\0') - return -EINVAL; - -- if (fstop < 0 || fstop >= cache->fcull_percent) -+ if (fstop >= cache->fcull_percent) - return cachefiles_daemon_range_error(cache, args); - - cache->fstop_percent = fstop; -@@ -458,7 +458,7 @@ static int cachefiles_daemon_bstop(struct cachefiles_cache *cache, char *args) - if (args[0] != '%' || args[1] != '\0') - return -EINVAL; - -- if (bstop < 0 || bstop >= cache->bcull_percent) -+ if (bstop >= cache->bcull_percent) - return cachefiles_daemon_range_error(cache, args); - - cache->bstop_percent = bstop; -diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h -index bd6bc1b..b627b53 100644 ---- a/fs/cachefiles/internal.h -+++ b/fs/cachefiles/internal.h -@@ -57,7 +57,7 @@ struct cachefiles_cache { - wait_queue_head_t daemon_pollwq; /* poll waitqueue for daemon */ - struct rb_root active_nodes; /* active nodes (can't be culled) */ - rwlock_t active_lock; /* lock for active_nodes */ -- atomic_t gravecounter; /* graveyard uniquifier */ -+ atomic_unchecked_t gravecounter; /* graveyard uniquifier */ - unsigned frun_percent; /* when to stop culling (% files) */ - unsigned fcull_percent; /* when to start culling (% files) */ - unsigned fstop_percent; /* when to stop allocating (% files) */ -@@ -169,19 +169,19 @@ extern int cachefiles_check_in_use(struct cachefiles_cache *cache, - * proc.c - */ - #ifdef CONFIG_CACHEFILES_HISTOGRAM --extern atomic_t cachefiles_lookup_histogram[HZ]; --extern atomic_t cachefiles_mkdir_histogram[HZ]; --extern atomic_t cachefiles_create_histogram[HZ]; -+extern atomic_unchecked_t cachefiles_lookup_histogram[HZ]; -+extern atomic_unchecked_t cachefiles_mkdir_histogram[HZ]; -+extern atomic_unchecked_t cachefiles_create_histogram[HZ]; - - extern int __init cachefiles_proc_init(void); - extern void cachefiles_proc_cleanup(void); - static inline --void cachefiles_hist(atomic_t histogram[], unsigned long start_jif) -+void cachefiles_hist(atomic_unchecked_t histogram[], unsigned long start_jif) - { - unsigned long jif = jiffies - start_jif; - if (jif >= HZ) - jif = HZ - 1; -- atomic_inc(&histogram[jif]); -+ atomic_inc_unchecked(&histogram[jif]); - } - - #else -diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c -index 7f0771d..87d4f36 100644 ---- a/fs/cachefiles/namei.c -+++ b/fs/cachefiles/namei.c -@@ -318,7 +318,7 @@ try_again: - /* first step is to make up a grave dentry in the graveyard */ - sprintf(nbuffer, "%08x%08x", - (uint32_t) get_seconds(), -- (uint32_t) atomic_inc_return(&cache->gravecounter)); -+ (uint32_t) atomic_inc_return_unchecked(&cache->gravecounter)); - - /* do the multiway lock magic */ - trap = lock_rename(cache->graveyard, dir); -diff --git a/fs/cachefiles/proc.c b/fs/cachefiles/proc.c -index eccd339..4c1d995 100644 ---- a/fs/cachefiles/proc.c -+++ b/fs/cachefiles/proc.c -@@ -14,9 +14,9 @@ - #include <linux/seq_file.h> - #include "internal.h" - --atomic_t cachefiles_lookup_histogram[HZ]; --atomic_t cachefiles_mkdir_histogram[HZ]; --atomic_t cachefiles_create_histogram[HZ]; -+atomic_unchecked_t cachefiles_lookup_histogram[HZ]; -+atomic_unchecked_t cachefiles_mkdir_histogram[HZ]; -+atomic_unchecked_t cachefiles_create_histogram[HZ]; - - /* - * display the latency histogram -@@ -35,9 +35,9 @@ static int cachefiles_histogram_show(struct seq_file *m, void *v) - return 0; - default: - index = (unsigned long) v - 3; -- x = atomic_read(&cachefiles_lookup_histogram[index]); -- y = atomic_read(&cachefiles_mkdir_histogram[index]); -- z = atomic_read(&cachefiles_create_histogram[index]); -+ x = atomic_read_unchecked(&cachefiles_lookup_histogram[index]); -+ y = atomic_read_unchecked(&cachefiles_mkdir_histogram[index]); -+ z = atomic_read_unchecked(&cachefiles_create_histogram[index]); - if (x == 0 && y == 0 && z == 0) - return 0; - -diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c -index 0e3c092..818480e 100644 ---- a/fs/cachefiles/rdwr.c -+++ b/fs/cachefiles/rdwr.c -@@ -945,7 +945,7 @@ int cachefiles_write_page(struct fscache_storage *op, struct page *page) - old_fs = get_fs(); - set_fs(KERNEL_DS); - ret = file->f_op->write( -- file, (const void __user *) data, len, &pos); -+ file, (const void __force_user *) data, len, &pos); - set_fs(old_fs); - kunmap(page); - if (ret != len) -diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c -index 3e8094b..cb3ff3d 100644 ---- a/fs/ceph/dir.c -+++ b/fs/ceph/dir.c -@@ -244,7 +244,7 @@ static int ceph_readdir(struct file *filp, void *dirent, filldir_t filldir) - struct ceph_fs_client *fsc = ceph_inode_to_client(inode); - struct ceph_mds_client *mdsc = fsc->mdsc; - unsigned frag = fpos_frag(filp->f_pos); -- int off = fpos_off(filp->f_pos); -+ unsigned int off = fpos_off(filp->f_pos); - int err; - u32 ftype; - struct ceph_mds_reply_info_parsed *rinfo; -@@ -598,7 +598,7 @@ static struct dentry *ceph_lookup(struct inode *dir, struct dentry *dentry, - if (nd && - (nd->flags & LOOKUP_OPEN) && - !(nd->intent.open.flags & O_CREAT)) { -- int mode = nd->intent.open.create_mode & ~current->fs->umask; -+ int mode = nd->intent.open.create_mode & ~current_umask(); - return ceph_lookup_open(dir, dentry, nd, mode, 1); - } - -diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c -index 2704646..c581c91 100644 ---- a/fs/cifs/cifs_debug.c -+++ b/fs/cifs/cifs_debug.c -@@ -265,8 +265,8 @@ static ssize_t cifs_stats_proc_write(struct file *file, - - if (c == '1' || c == 'y' || c == 'Y' || c == '0') { - #ifdef CONFIG_CIFS_STATS2 -- atomic_set(&totBufAllocCount, 0); -- atomic_set(&totSmBufAllocCount, 0); -+ atomic_set_unchecked(&totBufAllocCount, 0); -+ atomic_set_unchecked(&totSmBufAllocCount, 0); - #endif /* CONFIG_CIFS_STATS2 */ - spin_lock(&cifs_tcp_ses_lock); - list_for_each(tmp1, &cifs_tcp_ses_list) { -@@ -279,25 +279,25 @@ static ssize_t cifs_stats_proc_write(struct file *file, - tcon = list_entry(tmp3, - struct cifs_tcon, - tcon_list); -- atomic_set(&tcon->num_smbs_sent, 0); -- atomic_set(&tcon->num_writes, 0); -- atomic_set(&tcon->num_reads, 0); -- atomic_set(&tcon->num_oplock_brks, 0); -- atomic_set(&tcon->num_opens, 0); -- atomic_set(&tcon->num_posixopens, 0); -- atomic_set(&tcon->num_posixmkdirs, 0); -- atomic_set(&tcon->num_closes, 0); -- atomic_set(&tcon->num_deletes, 0); -- atomic_set(&tcon->num_mkdirs, 0); -- atomic_set(&tcon->num_rmdirs, 0); -- atomic_set(&tcon->num_renames, 0); -- atomic_set(&tcon->num_t2renames, 0); -- atomic_set(&tcon->num_ffirst, 0); -- atomic_set(&tcon->num_fnext, 0); -- atomic_set(&tcon->num_fclose, 0); -- atomic_set(&tcon->num_hardlinks, 0); -- atomic_set(&tcon->num_symlinks, 0); -- atomic_set(&tcon->num_locks, 0); -+ atomic_set_unchecked(&tcon->num_smbs_sent, 0); -+ atomic_set_unchecked(&tcon->num_writes, 0); -+ atomic_set_unchecked(&tcon->num_reads, 0); -+ atomic_set_unchecked(&tcon->num_oplock_brks, 0); -+ atomic_set_unchecked(&tcon->num_opens, 0); -+ atomic_set_unchecked(&tcon->num_posixopens, 0); -+ atomic_set_unchecked(&tcon->num_posixmkdirs, 0); -+ atomic_set_unchecked(&tcon->num_closes, 0); -+ atomic_set_unchecked(&tcon->num_deletes, 0); -+ atomic_set_unchecked(&tcon->num_mkdirs, 0); -+ atomic_set_unchecked(&tcon->num_rmdirs, 0); -+ atomic_set_unchecked(&tcon->num_renames, 0); -+ atomic_set_unchecked(&tcon->num_t2renames, 0); -+ atomic_set_unchecked(&tcon->num_ffirst, 0); -+ atomic_set_unchecked(&tcon->num_fnext, 0); -+ atomic_set_unchecked(&tcon->num_fclose, 0); -+ atomic_set_unchecked(&tcon->num_hardlinks, 0); -+ atomic_set_unchecked(&tcon->num_symlinks, 0); -+ atomic_set_unchecked(&tcon->num_locks, 0); - } - } - } -@@ -327,8 +327,8 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v) - smBufAllocCount.counter, cifs_min_small); - #ifdef CONFIG_CIFS_STATS2 - seq_printf(m, "Total Large %d Small %d Allocations\n", -- atomic_read(&totBufAllocCount), -- atomic_read(&totSmBufAllocCount)); -+ atomic_read_unchecked(&totBufAllocCount), -+ atomic_read_unchecked(&totSmBufAllocCount)); - #endif /* CONFIG_CIFS_STATS2 */ - - seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount)); -@@ -357,41 +357,41 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v) - if (tcon->need_reconnect) - seq_puts(m, "\tDISCONNECTED "); - seq_printf(m, "\nSMBs: %d Oplock Breaks: %d", -- atomic_read(&tcon->num_smbs_sent), -- atomic_read(&tcon->num_oplock_brks)); -+ atomic_read_unchecked(&tcon->num_smbs_sent), -+ atomic_read_unchecked(&tcon->num_oplock_brks)); - seq_printf(m, "\nReads: %d Bytes: %lld", -- atomic_read(&tcon->num_reads), -+ atomic_read_unchecked(&tcon->num_reads), - (long long)(tcon->bytes_read)); - seq_printf(m, "\nWrites: %d Bytes: %lld", -- atomic_read(&tcon->num_writes), -+ atomic_read_unchecked(&tcon->num_writes), - (long long)(tcon->bytes_written)); - seq_printf(m, "\nFlushes: %d", -- atomic_read(&tcon->num_flushes)); -+ atomic_read_unchecked(&tcon->num_flushes)); - seq_printf(m, "\nLocks: %d HardLinks: %d " - "Symlinks: %d", -- atomic_read(&tcon->num_locks), -- atomic_read(&tcon->num_hardlinks), -- atomic_read(&tcon->num_symlinks)); -+ atomic_read_unchecked(&tcon->num_locks), -+ atomic_read_unchecked(&tcon->num_hardlinks), -+ atomic_read_unchecked(&tcon->num_symlinks)); - seq_printf(m, "\nOpens: %d Closes: %d " - "Deletes: %d", -- atomic_read(&tcon->num_opens), -- atomic_read(&tcon->num_closes), -- atomic_read(&tcon->num_deletes)); -+ atomic_read_unchecked(&tcon->num_opens), -+ atomic_read_unchecked(&tcon->num_closes), -+ atomic_read_unchecked(&tcon->num_deletes)); - seq_printf(m, "\nPosix Opens: %d " - "Posix Mkdirs: %d", -- atomic_read(&tcon->num_posixopens), -- atomic_read(&tcon->num_posixmkdirs)); -+ atomic_read_unchecked(&tcon->num_posixopens), -+ atomic_read_unchecked(&tcon->num_posixmkdirs)); - seq_printf(m, "\nMkdirs: %d Rmdirs: %d", -- atomic_read(&tcon->num_mkdirs), -- atomic_read(&tcon->num_rmdirs)); -+ atomic_read_unchecked(&tcon->num_mkdirs), -+ atomic_read_unchecked(&tcon->num_rmdirs)); - seq_printf(m, "\nRenames: %d T2 Renames %d", -- atomic_read(&tcon->num_renames), -- atomic_read(&tcon->num_t2renames)); -+ atomic_read_unchecked(&tcon->num_renames), -+ atomic_read_unchecked(&tcon->num_t2renames)); - seq_printf(m, "\nFindFirst: %d FNext %d " - "FClose %d", -- atomic_read(&tcon->num_ffirst), -- atomic_read(&tcon->num_fnext), -- atomic_read(&tcon->num_fclose)); -+ atomic_read_unchecked(&tcon->num_ffirst), -+ atomic_read_unchecked(&tcon->num_fnext), -+ atomic_read_unchecked(&tcon->num_fclose)); - } - } - } -diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c -index 541ef81..a78deb8 100644 ---- a/fs/cifs/cifsfs.c -+++ b/fs/cifs/cifsfs.c -@@ -985,7 +985,7 @@ cifs_init_request_bufs(void) - cifs_req_cachep = kmem_cache_create("cifs_request", - CIFSMaxBufSize + - MAX_CIFS_HDR_SIZE, 0, -- SLAB_HWCACHE_ALIGN, NULL); -+ SLAB_HWCACHE_ALIGN | SLAB_USERCOPY, NULL); - if (cifs_req_cachep == NULL) - return -ENOMEM; - -@@ -1012,7 +1012,7 @@ cifs_init_request_bufs(void) - efficient to alloc 1 per page off the slab compared to 17K (5page) - alloc of large cifs buffers even when page debugging is on */ - cifs_sm_req_cachep = kmem_cache_create("cifs_small_rq", -- MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN, -+ MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN | SLAB_USERCOPY, - NULL); - if (cifs_sm_req_cachep == NULL) { - mempool_destroy(cifs_req_poolp); -@@ -1097,8 +1097,8 @@ init_cifs(void) - atomic_set(&bufAllocCount, 0); - atomic_set(&smBufAllocCount, 0); - #ifdef CONFIG_CIFS_STATS2 -- atomic_set(&totBufAllocCount, 0); -- atomic_set(&totSmBufAllocCount, 0); -+ atomic_set_unchecked(&totBufAllocCount, 0); -+ atomic_set_unchecked(&totSmBufAllocCount, 0); - #endif /* CONFIG_CIFS_STATS2 */ - - atomic_set(&midCount, 0); -diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h -index 73fea28..b996b84 100644 ---- a/fs/cifs/cifsglob.h -+++ b/fs/cifs/cifsglob.h -@@ -439,28 +439,28 @@ struct cifs_tcon { - __u16 Flags; /* optional support bits */ - enum statusEnum tidStatus; - #ifdef CONFIG_CIFS_STATS -- atomic_t num_smbs_sent; -- atomic_t num_writes; -- atomic_t num_reads; -- atomic_t num_flushes; -- atomic_t num_oplock_brks; -- atomic_t num_opens; -- atomic_t num_closes; -- atomic_t num_deletes; -- atomic_t num_mkdirs; -- atomic_t num_posixopens; -- atomic_t num_posixmkdirs; -- atomic_t num_rmdirs; -- atomic_t num_renames; -- atomic_t num_t2renames; -- atomic_t num_ffirst; -- atomic_t num_fnext; -- atomic_t num_fclose; -- atomic_t num_hardlinks; -- atomic_t num_symlinks; -- atomic_t num_locks; -- atomic_t num_acl_get; -- atomic_t num_acl_set; -+ atomic_unchecked_t num_smbs_sent; -+ atomic_unchecked_t num_writes; -+ atomic_unchecked_t num_reads; -+ atomic_unchecked_t num_flushes; -+ atomic_unchecked_t num_oplock_brks; -+ atomic_unchecked_t num_opens; -+ atomic_unchecked_t num_closes; -+ atomic_unchecked_t num_deletes; -+ atomic_unchecked_t num_mkdirs; -+ atomic_unchecked_t num_posixopens; -+ atomic_unchecked_t num_posixmkdirs; -+ atomic_unchecked_t num_rmdirs; -+ atomic_unchecked_t num_renames; -+ atomic_unchecked_t num_t2renames; -+ atomic_unchecked_t num_ffirst; -+ atomic_unchecked_t num_fnext; -+ atomic_unchecked_t num_fclose; -+ atomic_unchecked_t num_hardlinks; -+ atomic_unchecked_t num_symlinks; -+ atomic_unchecked_t num_locks; -+ atomic_unchecked_t num_acl_get; -+ atomic_unchecked_t num_acl_set; - #ifdef CONFIG_CIFS_STATS2 - unsigned long long time_writes; - unsigned long long time_reads; -@@ -677,7 +677,7 @@ convert_delimiter(char *path, char delim) - } - - #ifdef CONFIG_CIFS_STATS --#define cifs_stats_inc atomic_inc -+#define cifs_stats_inc atomic_inc_unchecked - - static inline void cifs_stats_bytes_written(struct cifs_tcon *tcon, - unsigned int bytes) -@@ -1036,8 +1036,8 @@ GLOBAL_EXTERN atomic_t tconInfoReconnectCount; - /* Various Debug counters */ - GLOBAL_EXTERN atomic_t bufAllocCount; /* current number allocated */ - #ifdef CONFIG_CIFS_STATS2 --GLOBAL_EXTERN atomic_t totBufAllocCount; /* total allocated over all time */ --GLOBAL_EXTERN atomic_t totSmBufAllocCount; -+GLOBAL_EXTERN atomic_unchecked_t totBufAllocCount; /* total allocated over all time */ -+GLOBAL_EXTERN atomic_unchecked_t totSmBufAllocCount; - #endif - GLOBAL_EXTERN atomic_t smBufAllocCount; - GLOBAL_EXTERN atomic_t midCount; -diff --git a/fs/cifs/link.c b/fs/cifs/link.c -index 6b0e064..94e6c3c 100644 ---- a/fs/cifs/link.c -+++ b/fs/cifs/link.c -@@ -600,7 +600,7 @@ symlink_exit: - - void cifs_put_link(struct dentry *direntry, struct nameidata *nd, void *cookie) - { -- char *p = nd_get_link(nd); -+ const char *p = nd_get_link(nd); - if (!IS_ERR(p)) - kfree(p); - } -diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c -index c29d1aa..58018da 100644 ---- a/fs/cifs/misc.c -+++ b/fs/cifs/misc.c -@@ -156,7 +156,7 @@ cifs_buf_get(void) - memset(ret_buf, 0, sizeof(struct smb_hdr) + 3); - atomic_inc(&bufAllocCount); - #ifdef CONFIG_CIFS_STATS2 -- atomic_inc(&totBufAllocCount); -+ atomic_inc_unchecked(&totBufAllocCount); - #endif /* CONFIG_CIFS_STATS2 */ - } - -@@ -191,7 +191,7 @@ cifs_small_buf_get(void) - /* memset(ret_buf, 0, sizeof(struct smb_hdr) + 27);*/ - atomic_inc(&smBufAllocCount); - #ifdef CONFIG_CIFS_STATS2 -- atomic_inc(&totSmBufAllocCount); -+ atomic_inc_unchecked(&totSmBufAllocCount); - #endif /* CONFIG_CIFS_STATS2 */ - - } -diff --git a/fs/coda/cache.c b/fs/coda/cache.c -index 6901578..d402eb5 100644 ---- a/fs/coda/cache.c -+++ b/fs/coda/cache.c -@@ -24,7 +24,7 @@ - #include "coda_linux.h" - #include "coda_cache.h" - --static atomic_t permission_epoch = ATOMIC_INIT(0); -+static atomic_unchecked_t permission_epoch = ATOMIC_INIT(0); - - /* replace or extend an acl cache hit */ - void coda_cache_enter(struct inode *inode, int mask) -@@ -32,7 +32,7 @@ void coda_cache_enter(struct inode *inode, int mask) - struct coda_inode_info *cii = ITOC(inode); - - spin_lock(&cii->c_lock); -- cii->c_cached_epoch = atomic_read(&permission_epoch); -+ cii->c_cached_epoch = atomic_read_unchecked(&permission_epoch); - if (cii->c_uid != current_fsuid()) { - cii->c_uid = current_fsuid(); - cii->c_cached_perm = mask; -@@ -46,14 +46,14 @@ void coda_cache_clear_inode(struct inode *inode) - { - struct coda_inode_info *cii = ITOC(inode); - spin_lock(&cii->c_lock); -- cii->c_cached_epoch = atomic_read(&permission_epoch) - 1; -+ cii->c_cached_epoch = atomic_read_unchecked(&permission_epoch) - 1; - spin_unlock(&cii->c_lock); - } - - /* remove all acl caches */ - void coda_cache_clear_all(struct super_block *sb) - { -- atomic_inc(&permission_epoch); -+ atomic_inc_unchecked(&permission_epoch); - } - - -@@ -66,7 +66,7 @@ int coda_cache_check(struct inode *inode, int mask) - spin_lock(&cii->c_lock); - hit = (mask & cii->c_cached_perm) == mask && - cii->c_uid == current_fsuid() && -- cii->c_cached_epoch == atomic_read(&permission_epoch); -+ cii->c_cached_epoch == atomic_read_unchecked(&permission_epoch); - spin_unlock(&cii->c_lock); - - return hit; -diff --git a/fs/compat.c b/fs/compat.c -index f2944ac..62845d2 100644 ---- a/fs/compat.c -+++ b/fs/compat.c -@@ -490,7 +490,7 @@ compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p) - - set_fs(KERNEL_DS); - /* The __user pointer cast is valid because of the set_fs() */ -- ret = sys_io_setup(nr_reqs, (aio_context_t __user *) &ctx64); -+ ret = sys_io_setup(nr_reqs, (aio_context_t __force_user *) &ctx64); - set_fs(oldfs); - /* truncating is ok because it's a user address */ - if (!ret) -@@ -548,7 +548,7 @@ ssize_t compat_rw_copy_check_uvector(int type, - goto out; - - ret = -EINVAL; -- if (nr_segs > UIO_MAXIOV || nr_segs < 0) -+ if (nr_segs > UIO_MAXIOV) - goto out; - if (nr_segs > fast_segs) { - ret = -ENOMEM; -@@ -831,6 +831,7 @@ struct compat_old_linux_dirent { - - struct compat_readdir_callback { - struct compat_old_linux_dirent __user *dirent; -+ struct file * file; - int result; - }; - -@@ -848,6 +849,10 @@ static int compat_fillonedir(void *__buf, const char *name, int namlen, - buf->result = -EOVERFLOW; - return -EOVERFLOW; - } -+ -+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino)) -+ return 0; -+ - buf->result++; - dirent = buf->dirent; - if (!access_ok(VERIFY_WRITE, dirent, -@@ -880,6 +885,7 @@ asmlinkage long compat_sys_old_readdir(unsigned int fd, - - buf.result = 0; - buf.dirent = dirent; -+ buf.file = file; - - error = vfs_readdir(file, compat_fillonedir, &buf); - if (buf.result) -@@ -900,6 +906,7 @@ struct compat_linux_dirent { - struct compat_getdents_callback { - struct compat_linux_dirent __user *current_dir; - struct compat_linux_dirent __user *previous; -+ struct file * file; - int count; - int error; - }; -@@ -921,6 +928,10 @@ static int compat_filldir(void *__buf, const char *name, int namlen, - buf->error = -EOVERFLOW; - return -EOVERFLOW; - } -+ -+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino)) -+ return 0; -+ - dirent = buf->previous; - if (dirent) { - if (__put_user(offset, &dirent->d_off)) -@@ -968,6 +979,7 @@ asmlinkage long compat_sys_getdents(unsigned int fd, - buf.previous = NULL; - buf.count = count; - buf.error = 0; -+ buf.file = file; - - error = vfs_readdir(file, compat_filldir, &buf); - if (error >= 0) -@@ -989,6 +1001,7 @@ out: - struct compat_getdents_callback64 { - struct linux_dirent64 __user *current_dir; - struct linux_dirent64 __user *previous; -+ struct file * file; - int count; - int error; - }; -@@ -1005,6 +1018,10 @@ static int compat_filldir64(void * __buf, const char * name, int namlen, loff_t - buf->error = -EINVAL; /* only used if we fail.. */ - if (reclen > buf->count) - return -EINVAL; -+ -+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino)) -+ return 0; -+ - dirent = buf->previous; - - if (dirent) { -@@ -1056,13 +1073,14 @@ asmlinkage long compat_sys_getdents64(unsigned int fd, - buf.previous = NULL; - buf.count = count; - buf.error = 0; -+ buf.file = file; - - error = vfs_readdir(file, compat_filldir64, &buf); - if (error >= 0) - error = buf.error; - lastdirent = buf.previous; - if (lastdirent) { -- typeof(lastdirent->d_off) d_off = file->f_pos; -+ typeof(((struct linux_dirent64 *)0)->d_off) d_off = file->f_pos; - if (__put_user_unaligned(d_off, &lastdirent->d_off)) - error = -EFAULT; - else -diff --git a/fs/compat_binfmt_elf.c b/fs/compat_binfmt_elf.c -index 112e45a..b59845b 100644 ---- a/fs/compat_binfmt_elf.c -+++ b/fs/compat_binfmt_elf.c -@@ -30,11 +30,13 @@ - #undef elf_phdr - #undef elf_shdr - #undef elf_note -+#undef elf_dyn - #undef elf_addr_t - #define elfhdr elf32_hdr - #define elf_phdr elf32_phdr - #define elf_shdr elf32_shdr - #define elf_note elf32_note -+#define elf_dyn Elf32_Dyn - #define elf_addr_t Elf32_Addr - - /* -diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c -index debdfe0..75d31d4 100644 ---- a/fs/compat_ioctl.c -+++ b/fs/compat_ioctl.c -@@ -210,6 +210,8 @@ static int do_video_set_spu_palette(unsigned int fd, unsigned int cmd, - - err = get_user(palp, &up->palette); - err |= get_user(length, &up->length); -+ if (err) -+ return -EFAULT; - - up_native = compat_alloc_user_space(sizeof(struct video_spu_palette)); - err = put_user(compat_ptr(palp), &up_native->palette); -@@ -621,7 +623,7 @@ static int serial_struct_ioctl(unsigned fd, unsigned cmd, - return -EFAULT; - if (__get_user(udata, &ss32->iomem_base)) - return -EFAULT; -- ss.iomem_base = compat_ptr(udata); -+ ss.iomem_base = (unsigned char __force_kernel *)compat_ptr(udata); - if (__get_user(ss.iomem_reg_shift, &ss32->iomem_reg_shift) || - __get_user(ss.port_high, &ss32->port_high)) - return -EFAULT; -@@ -796,7 +798,7 @@ static int compat_ioctl_preallocate(struct file *file, - copy_in_user(&p->l_len, &p32->l_len, sizeof(s64)) || - copy_in_user(&p->l_sysid, &p32->l_sysid, sizeof(s32)) || - copy_in_user(&p->l_pid, &p32->l_pid, sizeof(u32)) || -- copy_in_user(&p->l_pad, &p32->l_pad, 4*sizeof(u32))) -+ copy_in_user(p->l_pad, &p32->l_pad, 4*sizeof(u32))) - return -EFAULT; - - return ioctl_preallocate(file, p); -@@ -1610,8 +1612,8 @@ asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd, - static int __init init_sys32_ioctl_cmp(const void *p, const void *q) - { - unsigned int a, b; -- a = *(unsigned int *)p; -- b = *(unsigned int *)q; -+ a = *(const unsigned int *)p; -+ b = *(const unsigned int *)q; - if (a > b) - return 1; - if (a < b) -diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c -index 7e6c52d..94bc756 100644 ---- a/fs/configfs/dir.c -+++ b/fs/configfs/dir.c -@@ -1564,7 +1564,8 @@ static int configfs_readdir(struct file * filp, void * dirent, filldir_t filldir - } - for (p=q->next; p!= &parent_sd->s_children; p=p->next) { - struct configfs_dirent *next; -- const char * name; -+ const unsigned char * name; -+ char d_name[sizeof(next->s_dentry->d_iname)]; - int len; - struct inode *inode = NULL; - -@@ -1574,7 +1575,12 @@ static int configfs_readdir(struct file * filp, void * dirent, filldir_t filldir - continue; - - name = configfs_get_name(next); -- len = strlen(name); -+ if (next->s_dentry && name == next->s_dentry->d_iname) { -+ len = next->s_dentry->d_name.len; -+ memcpy(d_name, name, len); -+ name = d_name; -+ } else -+ len = strlen(name); - - /* - * We'll have a dentry and an inode for -diff --git a/fs/dcache.c b/fs/dcache.c -index b80531c..8ca7e2d 100644 ---- a/fs/dcache.c -+++ b/fs/dcache.c -@@ -3084,7 +3084,7 @@ void __init vfs_caches_init(unsigned long mempages) - mempages -= reserve; - - names_cachep = kmem_cache_create("names_cache", PATH_MAX, 0, -- SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL); -+ SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_USERCOPY, NULL); - - dcache_init(); - inode_init(); -diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c -index b80bc84..0d46d1a 100644 ---- a/fs/debugfs/inode.c -+++ b/fs/debugfs/inode.c -@@ -408,7 +408,11 @@ EXPORT_SYMBOL_GPL(debugfs_create_file); - struct dentry *debugfs_create_dir(const char *name, struct dentry *parent) - { - return debugfs_create_file(name, -+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT -+ S_IFDIR | S_IRWXU, -+#else - S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO, -+#endif - parent, NULL, NULL); - } - EXPORT_SYMBOL_GPL(debugfs_create_dir); -diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c -index ab35b11..b30af66 100644 ---- a/fs/ecryptfs/inode.c -+++ b/fs/ecryptfs/inode.c -@@ -672,7 +672,7 @@ static int ecryptfs_readlink_lower(struct dentry *dentry, char **buf, - old_fs = get_fs(); - set_fs(get_ds()); - rc = lower_dentry->d_inode->i_op->readlink(lower_dentry, -- (char __user *)lower_buf, -+ (char __force_user *)lower_buf, - lower_bufsiz); - set_fs(old_fs); - if (rc < 0) -@@ -718,7 +718,7 @@ static void *ecryptfs_follow_link(struct dentry *dentry, struct nameidata *nd) - } - old_fs = get_fs(); - set_fs(get_ds()); -- rc = dentry->d_inode->i_op->readlink(dentry, (char __user *)buf, len); -+ rc = dentry->d_inode->i_op->readlink(dentry, (char __force_user *)buf, len); - set_fs(old_fs); - if (rc < 0) { - kfree(buf); -@@ -733,7 +733,7 @@ out: - static void - ecryptfs_put_link(struct dentry *dentry, struct nameidata *nd, void *ptr) - { -- char *buf = nd_get_link(nd); -+ const char *buf = nd_get_link(nd); - if (!IS_ERR(buf)) { - /* Free the char* */ - kfree(buf); -diff --git a/fs/ecryptfs/miscdev.c b/fs/ecryptfs/miscdev.c -index 3a06f40..f7af544 100644 ---- a/fs/ecryptfs/miscdev.c -+++ b/fs/ecryptfs/miscdev.c -@@ -345,7 +345,7 @@ check_list: - goto out_unlock_msg_ctx; - i = PKT_TYPE_SIZE + PKT_CTR_SIZE; - if (msg_ctx->msg) { -- if (copy_to_user(&buf[i], packet_length, packet_length_size)) -+ if (packet_length_size > sizeof(packet_length) || copy_to_user(&buf[i], packet_length, packet_length_size)) - goto out_unlock_msg_ctx; - i += packet_length_size; - if (copy_to_user(&buf[i], msg_ctx->msg, msg_ctx->msg_size)) -diff --git a/fs/ecryptfs/read_write.c b/fs/ecryptfs/read_write.c -index b2a34a1..162fa69 100644 ---- a/fs/ecryptfs/read_write.c -+++ b/fs/ecryptfs/read_write.c -@@ -48,7 +48,7 @@ int ecryptfs_write_lower(struct inode *ecryptfs_inode, char *data, - return -EIO; - fs_save = get_fs(); - set_fs(get_ds()); -- rc = vfs_write(lower_file, data, size, &offset); -+ rc = vfs_write(lower_file, (const char __force_user *)data, size, &offset); - set_fs(fs_save); - mark_inode_dirty_sync(ecryptfs_inode); - return rc; -@@ -244,7 +244,7 @@ int ecryptfs_read_lower(char *data, loff_t offset, size_t size, - return -EIO; - fs_save = get_fs(); - set_fs(get_ds()); -- rc = vfs_read(lower_file, data, size, &offset); -+ rc = vfs_read(lower_file, (char __force_user *)data, size, &offset); - set_fs(fs_save); - return rc; - } -diff --git a/fs/exec.c b/fs/exec.c -index b1fd202..582240d 100644 ---- a/fs/exec.c -+++ b/fs/exec.c -@@ -55,6 +55,15 @@ - #include <linux/pipe_fs_i.h> - #include <linux/oom.h> - #include <linux/compat.h> -+#include <linux/random.h> -+#include <linux/seq_file.h> -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#include <linux/kallsyms.h> -+#include <linux/kdebug.h> -+#endif -+ -+#include <trace/events/fs.h> - - #include <asm/uaccess.h> - #include <asm/mmu_context.h> -@@ -66,6 +75,18 @@ - - #include <trace/events/sched.h> - -+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS -+void __weak pax_set_initial_flags(struct linux_binprm *bprm) -+{ -+ WARN_ONCE(1, "PAX: PAX_HAVE_ACL_FLAGS was enabled without providing the pax_set_initial_flags callback, this is probably not what you wanted.\n"); -+} -+#endif -+ -+#ifdef CONFIG_PAX_HOOK_ACL_FLAGS -+void (*pax_set_initial_flags_func)(struct linux_binprm *bprm); -+EXPORT_SYMBOL(pax_set_initial_flags_func); -+#endif -+ - int core_uses_pid; - char core_pattern[CORENAME_MAX_SIZE] = "core"; - unsigned int core_pipe_limit; -@@ -75,7 +96,7 @@ struct core_name { - char *corename; - int used, size; - }; --static atomic_t call_count = ATOMIC_INIT(1); -+static atomic_unchecked_t call_count = ATOMIC_INIT(1); - - /* The maximal length of core_pattern is also specified in sysctl.c */ - -@@ -191,18 +212,10 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos, - int write) - { - struct page *page; -- int ret; - --#ifdef CONFIG_STACK_GROWSUP -- if (write) { -- ret = expand_downwards(bprm->vma, pos); -- if (ret < 0) -- return NULL; -- } --#endif -- ret = get_user_pages(current, bprm->mm, pos, -- 1, write, 1, &page, NULL); -- if (ret <= 0) -+ if (0 > expand_downwards(bprm->vma, pos)) -+ return NULL; -+ if (0 >= get_user_pages(current, bprm->mm, pos, 1, write, 1, &page, NULL)) - return NULL; - - if (write) { -@@ -218,6 +231,17 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos, - if (size <= ARG_MAX) - return page; - -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ // only allow 512KB for argv+env on suid/sgid binaries -+ // to prevent easy ASLR exhaustion -+ if (((bprm->cred->euid != current_euid()) || -+ (bprm->cred->egid != current_egid())) && -+ (size > (512 * 1024))) { -+ put_page(page); -+ return NULL; -+ } -+#endif -+ - /* - * Limit to 1/4-th the stack size for the argv+env strings. - * This ensures that: -@@ -277,6 +301,11 @@ static int __bprm_mm_init(struct linux_binprm *bprm) - vma->vm_end = STACK_TOP_MAX; - vma->vm_start = vma->vm_end - PAGE_SIZE; - vma->vm_flags = VM_STACK_FLAGS | VM_STACK_INCOMPLETE_SETUP; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ vma->vm_flags &= ~(VM_EXEC | VM_MAYEXEC); -+#endif -+ - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); - INIT_LIST_HEAD(&vma->anon_vma_chain); - -@@ -291,6 +320,12 @@ static int __bprm_mm_init(struct linux_binprm *bprm) - mm->stack_vm = mm->total_vm = 1; - up_write(&mm->mmap_sem); - bprm->p = vma->vm_end - sizeof(void *); -+ -+#ifdef CONFIG_PAX_RANDUSTACK -+ if (randomize_va_space) -+ bprm->p ^= random32() & ~PAGE_MASK; -+#endif -+ - return 0; - err: - up_write(&mm->mmap_sem); -@@ -399,19 +434,7 @@ err: - return err; - } - --struct user_arg_ptr { --#ifdef CONFIG_COMPAT -- bool is_compat; --#endif -- union { -- const char __user *const __user *native; --#ifdef CONFIG_COMPAT -- compat_uptr_t __user *compat; --#endif -- } ptr; --}; -- --static const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr) -+const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr) - { - const char __user *native; - -@@ -420,14 +443,14 @@ static const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr) - compat_uptr_t compat; - - if (get_user(compat, argv.ptr.compat + nr)) -- return ERR_PTR(-EFAULT); -+ return (const char __force_user *)ERR_PTR(-EFAULT); - - return compat_ptr(compat); - } - #endif - - if (get_user(native, argv.ptr.native + nr)) -- return ERR_PTR(-EFAULT); -+ return (const char __force_user *)ERR_PTR(-EFAULT); - - return native; - } -@@ -446,7 +469,7 @@ static int count(struct user_arg_ptr argv, int max) - if (!p) - break; - -- if (IS_ERR(p)) -+ if (IS_ERR((const char __force_kernel *)p)) - return -EFAULT; - - if (i++ >= max) -@@ -480,7 +503,7 @@ static int copy_strings(int argc, struct user_arg_ptr argv, - - ret = -EFAULT; - str = get_user_arg_ptr(argv, argc); -- if (IS_ERR(str)) -+ if (IS_ERR((const char __force_kernel *)str)) - goto out; - - len = strnlen_user(str, MAX_ARG_STRLEN); -@@ -562,7 +585,7 @@ int copy_strings_kernel(int argc, const char *const *__argv, - int r; - mm_segment_t oldfs = get_fs(); - struct user_arg_ptr argv = { -- .ptr.native = (const char __user *const __user *)__argv, -+ .ptr.native = (const char __force_user *const __force_user *)__argv, - }; - - set_fs(KERNEL_DS); -@@ -597,7 +620,8 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift) - unsigned long new_end = old_end - shift; - struct mmu_gather tlb; - -- BUG_ON(new_start > new_end); -+ if (new_start >= new_end || new_start < mmap_min_addr) -+ return -ENOMEM; - - /* - * ensure there are no vmas between where we want to go -@@ -606,6 +630,10 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift) - if (vma != find_vma(mm, new_start)) - return -EFAULT; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ BUG_ON(pax_find_mirror_vma(vma)); -+#endif -+ - /* - * cover the whole range: [new_start, old_end) - */ -@@ -686,10 +714,6 @@ int setup_arg_pages(struct linux_binprm *bprm, - stack_top = arch_align_stack(stack_top); - stack_top = PAGE_ALIGN(stack_top); - -- if (unlikely(stack_top < mmap_min_addr) || -- unlikely(vma->vm_end - vma->vm_start >= stack_top - mmap_min_addr)) -- return -ENOMEM; -- - stack_shift = vma->vm_end - stack_top; - - bprm->p -= stack_shift; -@@ -701,8 +725,28 @@ int setup_arg_pages(struct linux_binprm *bprm, - bprm->exec -= stack_shift; - - down_write(&mm->mmap_sem); -+ -+ /* Move stack pages down in memory. */ -+ if (stack_shift) { -+ ret = shift_arg_pages(vma, stack_shift); -+ if (ret) -+ goto out_unlock; -+ } -+ - vm_flags = VM_STACK_FLAGS; - -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { -+ vm_flags &= ~VM_EXEC; -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (mm->pax_flags & MF_PAX_MPROTECT) -+ vm_flags &= ~VM_MAYEXEC; -+#endif -+ -+ } -+#endif -+ - /* - * Adjust stack execute permissions; explicitly enable for - * EXSTACK_ENABLE_X, disable for EXSTACK_DISABLE_X and leave alone -@@ -721,13 +765,6 @@ int setup_arg_pages(struct linux_binprm *bprm, - goto out_unlock; - BUG_ON(prev != vma); - -- /* Move stack pages down in memory. */ -- if (stack_shift) { -- ret = shift_arg_pages(vma, stack_shift); -- if (ret) -- goto out_unlock; -- } -- - /* mprotect_fixup is overkill to remove the temporary stack flags */ - vma->vm_flags &= ~VM_STACK_INCOMPLETE_SETUP; - -@@ -785,6 +822,8 @@ struct file *open_exec(const char *name) - - fsnotify_open(file); - -+ trace_open_exec(name); -+ - err = deny_write_access(file); - if (err) - goto exit; -@@ -808,7 +847,7 @@ int kernel_read(struct file *file, loff_t offset, - old_fs = get_fs(); - set_fs(get_ds()); - /* The cast to a user pointer is valid due to the set_fs() */ -- result = vfs_read(file, (void __user *)addr, count, &pos); -+ result = vfs_read(file, (void __force_user *)addr, count, &pos); - set_fs(old_fs); - return result; - } -@@ -1254,7 +1293,7 @@ static int check_unsafe_exec(struct linux_binprm *bprm) - } - rcu_read_unlock(); - -- if (p->fs->users > n_fs) { -+ if (atomic_read(&p->fs->users) > n_fs) { - bprm->unsafe |= LSM_UNSAFE_SHARE; - } else { - res = -EAGAIN; -@@ -1451,6 +1490,28 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs) - - EXPORT_SYMBOL(search_binary_handler); - -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+static DEFINE_PER_CPU(u64, exec_counter); -+static int __init init_exec_counters(void) -+{ -+ unsigned int cpu; -+ -+ for_each_possible_cpu(cpu) { -+ per_cpu(exec_counter, cpu) = (u64)cpu; -+ } -+ -+ return 0; -+} -+early_initcall(init_exec_counters); -+static inline void increment_exec_counter(void) -+{ -+ BUILD_BUG_ON(NR_CPUS > (1 << 16)); -+ current->exec_id = this_cpu_add_return(exec_counter, 1 << 16); -+} -+#else -+static inline void increment_exec_counter(void) {} -+#endif -+ - /* - * sys_execve() executes a new program. - */ -@@ -1459,6 +1520,11 @@ static int do_execve_common(const char *filename, - struct user_arg_ptr envp, - struct pt_regs *regs) - { -+#ifdef CONFIG_GRKERNSEC -+ struct file *old_exec_file; -+ struct acl_subject_label *old_acl; -+ struct rlimit old_rlim[RLIM_NLIMITS]; -+#endif - struct linux_binprm *bprm; - struct file *file; - struct files_struct *displaced; -@@ -1466,6 +1532,8 @@ static int do_execve_common(const char *filename, - int retval; - const struct cred *cred = current_cred(); - -+ gr_learn_resource(current, RLIMIT_NPROC, atomic_read(&current->cred->user->processes), 1); -+ - /* - * We move the actual failure in case of RLIMIT_NPROC excess from - * set*uid() to execve() because too many poorly written programs -@@ -1506,12 +1574,27 @@ static int do_execve_common(const char *filename, - if (IS_ERR(file)) - goto out_unmark; - -+ if (gr_ptrace_readexec(file, bprm->unsafe)) { -+ retval = -EPERM; -+ goto out_file; -+ } -+ - sched_exec(); - - bprm->file = file; - bprm->filename = filename; - bprm->interp = filename; - -+ if (gr_process_user_ban()) { -+ retval = -EPERM; -+ goto out_file; -+ } -+ -+ if (!gr_acl_handle_execve(file->f_dentry, file->f_vfsmnt)) { -+ retval = -EACCES; -+ goto out_file; -+ } -+ - retval = bprm_mm_init(bprm); - if (retval) - goto out_file; -@@ -1528,24 +1611,65 @@ static int do_execve_common(const char *filename, - if (retval < 0) - goto out; - -+#ifdef CONFIG_GRKERNSEC -+ old_acl = current->acl; -+ memcpy(old_rlim, current->signal->rlim, sizeof(old_rlim)); -+ old_exec_file = current->exec_file; -+ get_file(file); -+ current->exec_file = file; -+#endif -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ /* limit suid stack to 8MB -+ we saved the old limits above and will restore them if this exec fails -+ */ -+ if (((bprm->cred->euid != current_euid()) || (bprm->cred->egid != current_egid())) && -+ (old_rlim[RLIMIT_STACK].rlim_cur > (8 * 1024 * 1024))) -+ current->signal->rlim[RLIMIT_STACK].rlim_cur = 8 * 1024 * 1024; -+#endif -+ -+ if (!gr_tpe_allow(file)) { -+ retval = -EACCES; -+ goto out_fail; -+ } -+ -+ if (gr_check_crash_exec(file)) { -+ retval = -EACCES; -+ goto out_fail; -+ } -+ -+ retval = gr_set_proc_label(file->f_dentry, file->f_vfsmnt, -+ bprm->unsafe); -+ if (retval < 0) -+ goto out_fail; -+ - retval = copy_strings_kernel(1, &bprm->filename, bprm); - if (retval < 0) -- goto out; -+ goto out_fail; - - bprm->exec = bprm->p; - retval = copy_strings(bprm->envc, envp, bprm); - if (retval < 0) -- goto out; -+ goto out_fail; - - retval = copy_strings(bprm->argc, argv, bprm); - if (retval < 0) -- goto out; -+ goto out_fail; -+ -+ gr_log_chroot_exec(file->f_dentry, file->f_vfsmnt); -+ -+ gr_handle_exec_args(bprm, argv); - - retval = search_binary_handler(bprm,regs); - if (retval < 0) -- goto out; -+ goto out_fail; -+#ifdef CONFIG_GRKERNSEC -+ if (old_exec_file) -+ fput(old_exec_file); -+#endif - - /* execve succeeded */ -+ -+ increment_exec_counter(); - current->fs->in_exec = 0; - current->in_execve = 0; - acct_update_integrals(current); -@@ -1554,6 +1678,14 @@ static int do_execve_common(const char *filename, - put_files_struct(displaced); - return retval; - -+out_fail: -+#ifdef CONFIG_GRKERNSEC -+ current->acl = old_acl; -+ memcpy(current->signal->rlim, old_rlim, sizeof(old_rlim)); -+ fput(current->exec_file); -+ current->exec_file = old_exec_file; -+#endif -+ - out: - if (bprm->mm) { - acct_arg_size(bprm, 0); -@@ -1627,7 +1759,7 @@ static int expand_corename(struct core_name *cn) - { - char *old_corename = cn->corename; - -- cn->size = CORENAME_MAX_SIZE * atomic_inc_return(&call_count); -+ cn->size = CORENAME_MAX_SIZE * atomic_inc_return_unchecked(&call_count); - cn->corename = krealloc(old_corename, cn->size, GFP_KERNEL); - - if (!cn->corename) { -@@ -1724,7 +1856,7 @@ static int format_corename(struct core_name *cn, long signr) - int pid_in_pattern = 0; - int err = 0; - -- cn->size = CORENAME_MAX_SIZE * atomic_read(&call_count); -+ cn->size = CORENAME_MAX_SIZE * atomic_read_unchecked(&call_count); - cn->corename = kmalloc(cn->size, GFP_KERNEL); - cn->used = 0; - -@@ -1821,6 +1953,228 @@ out: - return ispipe; - } - -+int pax_check_flags(unsigned long *flags) -+{ -+ int retval = 0; -+ -+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_SEGMEXEC) -+ if (*flags & MF_PAX_SEGMEXEC) -+ { -+ *flags &= ~MF_PAX_SEGMEXEC; -+ retval = -EINVAL; -+ } -+#endif -+ -+ if ((*flags & MF_PAX_PAGEEXEC) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ && (*flags & MF_PAX_SEGMEXEC) -+#endif -+ -+ ) -+ { -+ *flags &= ~MF_PAX_PAGEEXEC; -+ retval = -EINVAL; -+ } -+ -+ if ((*flags & MF_PAX_MPROTECT) -+ -+#ifdef CONFIG_PAX_MPROTECT -+ && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) -+#endif -+ -+ ) -+ { -+ *flags &= ~MF_PAX_MPROTECT; -+ retval = -EINVAL; -+ } -+ -+ if ((*flags & MF_PAX_EMUTRAMP) -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) -+#endif -+ -+ ) -+ { -+ *flags &= ~MF_PAX_EMUTRAMP; -+ retval = -EINVAL; -+ } -+ -+ return retval; -+} -+ -+EXPORT_SYMBOL(pax_check_flags); -+ -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+void pax_report_fault(struct pt_regs *regs, void *pc, void *sp) -+{ -+ struct task_struct *tsk = current; -+ struct mm_struct *mm = current->mm; -+ char *buffer_exec = (char *)__get_free_page(GFP_KERNEL); -+ char *buffer_fault = (char *)__get_free_page(GFP_KERNEL); -+ char *path_exec = NULL; -+ char *path_fault = NULL; -+ unsigned long start = 0UL, end = 0UL, offset = 0UL; -+ -+ if (buffer_exec && buffer_fault) { -+ struct vm_area_struct *vma, *vma_exec = NULL, *vma_fault = NULL; -+ -+ down_read(&mm->mmap_sem); -+ vma = mm->mmap; -+ while (vma && (!vma_exec || !vma_fault)) { -+ if ((vma->vm_flags & VM_EXECUTABLE) && vma->vm_file) -+ vma_exec = vma; -+ if (vma->vm_start <= (unsigned long)pc && (unsigned long)pc < vma->vm_end) -+ vma_fault = vma; -+ vma = vma->vm_next; -+ } -+ if (vma_exec) { -+ path_exec = d_path(&vma_exec->vm_file->f_path, buffer_exec, PAGE_SIZE); -+ if (IS_ERR(path_exec)) -+ path_exec = "<path too long>"; -+ else { -+ path_exec = mangle_path(buffer_exec, path_exec, "\t\n\\"); -+ if (path_exec) { -+ *path_exec = 0; -+ path_exec = buffer_exec; -+ } else -+ path_exec = "<path too long>"; -+ } -+ } -+ if (vma_fault) { -+ start = vma_fault->vm_start; -+ end = vma_fault->vm_end; -+ offset = vma_fault->vm_pgoff << PAGE_SHIFT; -+ if (vma_fault->vm_file) { -+ path_fault = d_path(&vma_fault->vm_file->f_path, buffer_fault, PAGE_SIZE); -+ if (IS_ERR(path_fault)) -+ path_fault = "<path too long>"; -+ else { -+ path_fault = mangle_path(buffer_fault, path_fault, "\t\n\\"); -+ if (path_fault) { -+ *path_fault = 0; -+ path_fault = buffer_fault; -+ } else -+ path_fault = "<path too long>"; -+ } -+ } else -+ path_fault = "<anonymous mapping>"; -+ } -+ up_read(&mm->mmap_sem); -+ } -+ if (tsk->signal->curr_ip) -+ printk(KERN_ERR "PAX: From %pI4: execution attempt in: %s, %08lx-%08lx %08lx\n", &tsk->signal->curr_ip, path_fault, start, end, offset); -+ else -+ printk(KERN_ERR "PAX: execution attempt in: %s, %08lx-%08lx %08lx\n", path_fault, start, end, offset); -+ printk(KERN_ERR "PAX: terminating task: %s(%s):%d, uid/euid: %u/%u, " -+ "PC: %p, SP: %p\n", path_exec, tsk->comm, task_pid_nr(tsk), -+ task_uid(tsk), task_euid(tsk), pc, sp); -+ free_page((unsigned long)buffer_exec); -+ free_page((unsigned long)buffer_fault); -+ pax_report_insns(regs, pc, sp); -+ do_coredump(SIGKILL, SIGKILL, regs); -+} -+#endif -+ -+#ifdef CONFIG_PAX_REFCOUNT -+void pax_report_refcount_overflow(struct pt_regs *regs) -+{ -+ if (current->signal->curr_ip) -+ printk(KERN_ERR "PAX: From %pI4: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n", -+ &current->signal->curr_ip, current->comm, task_pid_nr(current), current_uid(), current_euid()); -+ else -+ printk(KERN_ERR "PAX: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n", -+ current->comm, task_pid_nr(current), current_uid(), current_euid()); -+ print_symbol(KERN_ERR "PAX: refcount overflow occured at: %s\n", instruction_pointer(regs)); -+ show_regs(regs); -+ force_sig_info(SIGKILL, SEND_SIG_FORCED, current); -+} -+#endif -+ -+#ifdef CONFIG_PAX_USERCOPY -+/* 0: not at all, 1: fully, 2: fully inside frame, -1: partially (implies an error) */ -+int object_is_on_stack(const void *obj, unsigned long len) -+{ -+ const void * const stack = task_stack_page(current); -+ const void * const stackend = stack + THREAD_SIZE; -+ -+#if defined(CONFIG_FRAME_POINTER) && defined(CONFIG_X86) -+ const void *frame = NULL; -+ const void *oldframe; -+#endif -+ -+ if (obj + len < obj) -+ return -1; -+ -+ if (obj + len <= stack || stackend <= obj) -+ return 0; -+ -+ if (obj < stack || stackend < obj + len) -+ return -1; -+ -+#if defined(CONFIG_FRAME_POINTER) && defined(CONFIG_X86) -+ oldframe = __builtin_frame_address(1); -+ if (oldframe) -+ frame = __builtin_frame_address(2); -+ /* -+ low ----------------------------------------------> high -+ [saved bp][saved ip][args][local vars][saved bp][saved ip] -+ ^----------------^ -+ allow copies only within here -+ */ -+ while (stack <= frame && frame < stackend) { -+ /* if obj + len extends past the last frame, this -+ check won't pass and the next frame will be 0, -+ causing us to bail out and correctly report -+ the copy as invalid -+ */ -+ if (obj + len <= frame) -+ return obj >= oldframe + 2 * sizeof(void *) ? 2 : -1; -+ oldframe = frame; -+ frame = *(const void * const *)frame; -+ } -+ return -1; -+#else -+ return 1; -+#endif -+} -+ -+__noreturn void pax_report_usercopy(const void *ptr, unsigned long len, bool to, const char *type) -+{ -+ if (current->signal->curr_ip) -+ printk(KERN_ERR "PAX: From %pI4: kernel memory %s attempt detected %s %p (%s) (%lu bytes)\n", -+ &current->signal->curr_ip, to ? "leak" : "overwrite", to ? "from" : "to", ptr, type ? : "unknown", len); -+ else -+ printk(KERN_ERR "PAX: kernel memory %s attempt detected %s %p (%s) (%lu bytes)\n", -+ to ? "leak" : "overwrite", to ? "from" : "to", ptr, type ? : "unknown", len); -+ dump_stack(); -+ gr_handle_kernel_exploit(); -+ do_group_exit(SIGKILL); -+} -+#endif -+ -+#ifdef CONFIG_PAX_MEMORY_STACKLEAK -+void pax_track_stack(void) -+{ -+ unsigned long sp = (unsigned long)&sp; -+ if (sp < current_thread_info()->lowest_stack && -+ sp > (unsigned long)task_stack_page(current)) -+ current_thread_info()->lowest_stack = sp; -+} -+EXPORT_SYMBOL(pax_track_stack); -+#endif -+ -+#ifdef CONFIG_PAX_SIZE_OVERFLOW -+void report_size_overflow(const char *file, unsigned int line, const char *func) -+{ -+ printk(KERN_ERR "PAX: size overflow detected in function %s %s:%u\n", func, file, line); -+ dump_stack(); -+ do_group_exit(SIGKILL); -+} -+EXPORT_SYMBOL(report_size_overflow); -+#endif -+ - static int zap_process(struct task_struct *start, int exit_code) - { - struct task_struct *t; -@@ -2018,17 +2372,17 @@ static void wait_for_dump_helpers(struct file *file) - pipe = file->f_path.dentry->d_inode->i_pipe; - - pipe_lock(pipe); -- pipe->readers++; -- pipe->writers--; -+ atomic_inc(&pipe->readers); -+ atomic_dec(&pipe->writers); - -- while ((pipe->readers > 1) && (!signal_pending(current))) { -+ while ((atomic_read(&pipe->readers) > 1) && (!signal_pending(current))) { - wake_up_interruptible_sync(&pipe->wait); - kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN); - pipe_wait(pipe); - } - -- pipe->readers--; -- pipe->writers++; -+ atomic_dec(&pipe->readers); -+ atomic_inc(&pipe->writers); - pipe_unlock(pipe); - - } -@@ -2089,7 +2443,7 @@ void do_coredump(long signr, int exit_code, struct pt_regs *regs) - int retval = 0; - int flag = 0; - int ispipe; -- static atomic_t core_dump_count = ATOMIC_INIT(0); -+ static atomic_unchecked_t core_dump_count = ATOMIC_INIT(0); - struct coredump_params cprm = { - .signr = signr, - .regs = regs, -@@ -2104,6 +2458,9 @@ void do_coredump(long signr, int exit_code, struct pt_regs *regs) - - audit_core_dumps(signr); - -+ if (signr == SIGSEGV || signr == SIGBUS || signr == SIGKILL || signr == SIGILL) -+ gr_handle_brute_attach(current, cprm.mm_flags); -+ - binfmt = mm->binfmt; - if (!binfmt || !binfmt->core_dump) - goto fail; -@@ -2171,7 +2528,7 @@ void do_coredump(long signr, int exit_code, struct pt_regs *regs) - } - cprm.limit = RLIM_INFINITY; - -- dump_count = atomic_inc_return(&core_dump_count); -+ dump_count = atomic_inc_return_unchecked(&core_dump_count); - if (core_pipe_limit && (core_pipe_limit < dump_count)) { - printk(KERN_WARNING "Pid %d(%s) over core_pipe_limit\n", - task_tgid_vnr(current), current->comm); -@@ -2198,6 +2555,8 @@ void do_coredump(long signr, int exit_code, struct pt_regs *regs) - } else { - struct inode *inode; - -+ gr_learn_resource(current, RLIMIT_CORE, binfmt->min_coredump, 1); -+ - if (cprm.limit < binfmt->min_coredump) - goto fail_unlock; - -@@ -2241,7 +2600,7 @@ close_fail: - filp_close(cprm.file, NULL); - fail_dropcount: - if (ispipe) -- atomic_dec(&core_dump_count); -+ atomic_dec_unchecked(&core_dump_count); - fail_unlock: - kfree(cn.corename); - fail_corename: -@@ -2260,7 +2619,7 @@ fail: - */ - int dump_write(struct file *file, const void *addr, int nr) - { -- return access_ok(VERIFY_READ, addr, nr) && file->f_op->write(file, addr, nr, &file->f_pos) == nr; -+ return access_ok(VERIFY_READ, addr, nr) && file->f_op->write(file, (const char __force_user *)addr, nr, &file->f_pos) == nr; - } - EXPORT_SYMBOL(dump_write); - -diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c -index a8cbe1b..fed04cb 100644 ---- a/fs/ext2/balloc.c -+++ b/fs/ext2/balloc.c -@@ -1192,7 +1192,7 @@ static int ext2_has_free_blocks(struct ext2_sb_info *sbi) - - free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter); - root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count); -- if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) && -+ if (free_blocks < root_blocks + 1 && !capable_nolog(CAP_SYS_RESOURCE) && - sbi->s_resuid != current_fsuid() && - (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) { - return 0; -diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c -index baac1b1..1499b62 100644 ---- a/fs/ext3/balloc.c -+++ b/fs/ext3/balloc.c -@@ -1438,9 +1438,10 @@ static int ext3_has_free_blocks(struct ext3_sb_info *sbi, int use_reservation) - - free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter); - root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count); -- if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) && -+ if (free_blocks < root_blocks + 1 && - !use_reservation && sbi->s_resuid != current_fsuid() && -- (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) { -+ (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid)) && -+ !capable_nolog(CAP_SYS_RESOURCE)) { - return 0; - } - return 1; -diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c -index 8da837b..ed3835b 100644 ---- a/fs/ext4/balloc.c -+++ b/fs/ext4/balloc.c -@@ -463,8 +463,8 @@ static int ext4_has_free_clusters(struct ext4_sb_info *sbi, - /* Hm, nope. Are (enough) root reserved clusters available? */ - if (sbi->s_resuid == current_fsuid() || - ((sbi->s_resgid != 0) && in_group_p(sbi->s_resgid)) || -- capable(CAP_SYS_RESOURCE) || -- (flags & EXT4_MB_USE_ROOT_BLOCKS)) { -+ (flags & EXT4_MB_USE_ROOT_BLOCKS) || -+ capable_nolog(CAP_SYS_RESOURCE)) { - - if (free_clusters >= (nclusters + dirty_clusters)) - return 1; -diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h -index 0e01e90..ae2bd5e 100644 ---- a/fs/ext4/ext4.h -+++ b/fs/ext4/ext4.h -@@ -1225,19 +1225,19 @@ struct ext4_sb_info { - unsigned long s_mb_last_start; - - /* stats for buddy allocator */ -- atomic_t s_bal_reqs; /* number of reqs with len > 1 */ -- atomic_t s_bal_success; /* we found long enough chunks */ -- atomic_t s_bal_allocated; /* in blocks */ -- atomic_t s_bal_ex_scanned; /* total extents scanned */ -- atomic_t s_bal_goals; /* goal hits */ -- atomic_t s_bal_breaks; /* too long searches */ -- atomic_t s_bal_2orders; /* 2^order hits */ -+ atomic_unchecked_t s_bal_reqs; /* number of reqs with len > 1 */ -+ atomic_unchecked_t s_bal_success; /* we found long enough chunks */ -+ atomic_unchecked_t s_bal_allocated; /* in blocks */ -+ atomic_unchecked_t s_bal_ex_scanned; /* total extents scanned */ -+ atomic_unchecked_t s_bal_goals; /* goal hits */ -+ atomic_unchecked_t s_bal_breaks; /* too long searches */ -+ atomic_unchecked_t s_bal_2orders; /* 2^order hits */ - spinlock_t s_bal_lock; - unsigned long s_mb_buddies_generated; - unsigned long long s_mb_generation_time; -- atomic_t s_mb_lost_chunks; -- atomic_t s_mb_preallocated; -- atomic_t s_mb_discarded; -+ atomic_unchecked_t s_mb_lost_chunks; -+ atomic_unchecked_t s_mb_preallocated; -+ atomic_unchecked_t s_mb_discarded; - atomic_t s_lock_busy; - - /* locality groups */ -diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c -index 6b0a57e..1955a44 100644 ---- a/fs/ext4/mballoc.c -+++ b/fs/ext4/mballoc.c -@@ -1747,7 +1747,7 @@ void ext4_mb_simple_scan_group(struct ext4_allocation_context *ac, - BUG_ON(ac->ac_b_ex.fe_len != ac->ac_g_ex.fe_len); - - if (EXT4_SB(sb)->s_mb_stats) -- atomic_inc(&EXT4_SB(sb)->s_bal_2orders); -+ atomic_inc_unchecked(&EXT4_SB(sb)->s_bal_2orders); - - break; - } -@@ -2041,7 +2041,7 @@ repeat: - ac->ac_status = AC_STATUS_CONTINUE; - ac->ac_flags |= EXT4_MB_HINT_FIRST; - cr = 3; -- atomic_inc(&sbi->s_mb_lost_chunks); -+ atomic_inc_unchecked(&sbi->s_mb_lost_chunks); - goto repeat; - } - } -@@ -2545,25 +2545,25 @@ int ext4_mb_release(struct super_block *sb) - if (sbi->s_mb_stats) { - ext4_msg(sb, KERN_INFO, - "mballoc: %u blocks %u reqs (%u success)", -- atomic_read(&sbi->s_bal_allocated), -- atomic_read(&sbi->s_bal_reqs), -- atomic_read(&sbi->s_bal_success)); -+ atomic_read_unchecked(&sbi->s_bal_allocated), -+ atomic_read_unchecked(&sbi->s_bal_reqs), -+ atomic_read_unchecked(&sbi->s_bal_success)); - ext4_msg(sb, KERN_INFO, - "mballoc: %u extents scanned, %u goal hits, " - "%u 2^N hits, %u breaks, %u lost", -- atomic_read(&sbi->s_bal_ex_scanned), -- atomic_read(&sbi->s_bal_goals), -- atomic_read(&sbi->s_bal_2orders), -- atomic_read(&sbi->s_bal_breaks), -- atomic_read(&sbi->s_mb_lost_chunks)); -+ atomic_read_unchecked(&sbi->s_bal_ex_scanned), -+ atomic_read_unchecked(&sbi->s_bal_goals), -+ atomic_read_unchecked(&sbi->s_bal_2orders), -+ atomic_read_unchecked(&sbi->s_bal_breaks), -+ atomic_read_unchecked(&sbi->s_mb_lost_chunks)); - ext4_msg(sb, KERN_INFO, - "mballoc: %lu generated and it took %Lu", - sbi->s_mb_buddies_generated, - sbi->s_mb_generation_time); - ext4_msg(sb, KERN_INFO, - "mballoc: %u preallocated, %u discarded", -- atomic_read(&sbi->s_mb_preallocated), -- atomic_read(&sbi->s_mb_discarded)); -+ atomic_read_unchecked(&sbi->s_mb_preallocated), -+ atomic_read_unchecked(&sbi->s_mb_discarded)); - } - - free_percpu(sbi->s_locality_groups); -@@ -3045,16 +3045,16 @@ static void ext4_mb_collect_stats(struct ext4_allocation_context *ac) - struct ext4_sb_info *sbi = EXT4_SB(ac->ac_sb); - - if (sbi->s_mb_stats && ac->ac_g_ex.fe_len > 1) { -- atomic_inc(&sbi->s_bal_reqs); -- atomic_add(ac->ac_b_ex.fe_len, &sbi->s_bal_allocated); -+ atomic_inc_unchecked(&sbi->s_bal_reqs); -+ atomic_add_unchecked(ac->ac_b_ex.fe_len, &sbi->s_bal_allocated); - if (ac->ac_b_ex.fe_len >= ac->ac_o_ex.fe_len) -- atomic_inc(&sbi->s_bal_success); -- atomic_add(ac->ac_found, &sbi->s_bal_ex_scanned); -+ atomic_inc_unchecked(&sbi->s_bal_success); -+ atomic_add_unchecked(ac->ac_found, &sbi->s_bal_ex_scanned); - if (ac->ac_g_ex.fe_start == ac->ac_b_ex.fe_start && - ac->ac_g_ex.fe_group == ac->ac_b_ex.fe_group) -- atomic_inc(&sbi->s_bal_goals); -+ atomic_inc_unchecked(&sbi->s_bal_goals); - if (ac->ac_found > sbi->s_mb_max_to_scan) -- atomic_inc(&sbi->s_bal_breaks); -+ atomic_inc_unchecked(&sbi->s_bal_breaks); - } - - if (ac->ac_op == EXT4_MB_HISTORY_ALLOC) -@@ -3458,7 +3458,7 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac) - trace_ext4_mb_new_inode_pa(ac, pa); - - ext4_mb_use_inode_pa(ac, pa); -- atomic_add(pa->pa_free, &sbi->s_mb_preallocated); -+ atomic_add_unchecked(pa->pa_free, &sbi->s_mb_preallocated); - - ei = EXT4_I(ac->ac_inode); - grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group); -@@ -3518,7 +3518,7 @@ ext4_mb_new_group_pa(struct ext4_allocation_context *ac) - trace_ext4_mb_new_group_pa(ac, pa); - - ext4_mb_use_group_pa(ac, pa); -- atomic_add(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated); -+ atomic_add_unchecked(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated); - - grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group); - lg = ac->ac_lg; -@@ -3607,7 +3607,7 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh, - * from the bitmap and continue. - */ - } -- atomic_add(free, &sbi->s_mb_discarded); -+ atomic_add_unchecked(free, &sbi->s_mb_discarded); - - return err; - } -@@ -3625,7 +3625,7 @@ ext4_mb_release_group_pa(struct ext4_buddy *e4b, - ext4_get_group_no_and_offset(sb, pa->pa_pstart, &group, &bit); - BUG_ON(group != e4b->bd_group && pa->pa_len != 0); - mb_free_blocks(pa->pa_inode, e4b, bit, pa->pa_len); -- atomic_add(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded); -+ atomic_add_unchecked(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded); - trace_ext4_mballoc_discard(sb, NULL, group, bit, pa->pa_len); - - return 0; -diff --git a/fs/fcntl.c b/fs/fcntl.c -index 75e7c1f..1eb3e4d 100644 ---- a/fs/fcntl.c -+++ b/fs/fcntl.c -@@ -224,6 +224,11 @@ int __f_setown(struct file *filp, struct pid *pid, enum pid_type type, - if (err) - return err; - -+ if (gr_handle_chroot_fowner(pid, type)) -+ return -ENOENT; -+ if (gr_check_protected_task_fowner(pid, type)) -+ return -EACCES; -+ - f_modown(filp, pid, type, force); - return 0; - } -@@ -266,7 +271,7 @@ pid_t f_getown(struct file *filp) - - static int f_setown_ex(struct file *filp, unsigned long arg) - { -- struct f_owner_ex * __user owner_p = (void * __user)arg; -+ struct f_owner_ex __user *owner_p = (void __user *)arg; - struct f_owner_ex owner; - struct pid *pid; - int type; -@@ -306,7 +311,7 @@ static int f_setown_ex(struct file *filp, unsigned long arg) - - static int f_getown_ex(struct file *filp, unsigned long arg) - { -- struct f_owner_ex * __user owner_p = (void * __user)arg; -+ struct f_owner_ex __user *owner_p = (void __user *)arg; - struct f_owner_ex owner; - int ret = 0; - -@@ -348,6 +353,7 @@ static long do_fcntl(int fd, unsigned int cmd, unsigned long arg, - switch (cmd) { - case F_DUPFD: - case F_DUPFD_CLOEXEC: -+ gr_learn_resource(current, RLIMIT_NOFILE, arg, 0); - if (arg >= rlimit(RLIMIT_NOFILE)) - break; - err = alloc_fd(arg, cmd == F_DUPFD_CLOEXEC ? O_CLOEXEC : 0); -diff --git a/fs/fifo.c b/fs/fifo.c -index b1a524d..4ee270e 100644 ---- a/fs/fifo.c -+++ b/fs/fifo.c -@@ -58,10 +58,10 @@ static int fifo_open(struct inode *inode, struct file *filp) - */ - filp->f_op = &read_pipefifo_fops; - pipe->r_counter++; -- if (pipe->readers++ == 0) -+ if (atomic_inc_return(&pipe->readers) == 1) - wake_up_partner(inode); - -- if (!pipe->writers) { -+ if (!atomic_read(&pipe->writers)) { - if ((filp->f_flags & O_NONBLOCK)) { - /* suppress POLLHUP until we have - * seen a writer */ -@@ -81,15 +81,15 @@ static int fifo_open(struct inode *inode, struct file *filp) - * errno=ENXIO when there is no process reading the FIFO. - */ - ret = -ENXIO; -- if ((filp->f_flags & O_NONBLOCK) && !pipe->readers) -+ if ((filp->f_flags & O_NONBLOCK) && !atomic_read(&pipe->readers)) - goto err; - - filp->f_op = &write_pipefifo_fops; - pipe->w_counter++; -- if (!pipe->writers++) -+ if (atomic_inc_return(&pipe->writers) == 1) - wake_up_partner(inode); - -- if (!pipe->readers) { -+ if (!atomic_read(&pipe->readers)) { - wait_for_partner(inode, &pipe->r_counter); - if (signal_pending(current)) - goto err_wr; -@@ -105,11 +105,11 @@ static int fifo_open(struct inode *inode, struct file *filp) - */ - filp->f_op = &rdwr_pipefifo_fops; - -- pipe->readers++; -- pipe->writers++; -+ atomic_inc(&pipe->readers); -+ atomic_inc(&pipe->writers); - pipe->r_counter++; - pipe->w_counter++; -- if (pipe->readers == 1 || pipe->writers == 1) -+ if (atomic_read(&pipe->readers) == 1 || atomic_read(&pipe->writers) == 1) - wake_up_partner(inode); - break; - -@@ -123,19 +123,19 @@ static int fifo_open(struct inode *inode, struct file *filp) - return 0; - - err_rd: -- if (!--pipe->readers) -+ if (atomic_dec_and_test(&pipe->readers)) - wake_up_interruptible(&pipe->wait); - ret = -ERESTARTSYS; - goto err; - - err_wr: -- if (!--pipe->writers) -+ if (atomic_dec_and_test(&pipe->writers)) - wake_up_interruptible(&pipe->wait); - ret = -ERESTARTSYS; - goto err; - - err: -- if (!pipe->readers && !pipe->writers) -+ if (!atomic_read(&pipe->readers) && !atomic_read(&pipe->writers)) - free_pipe_info(inode); - - err_nocleanup: -diff --git a/fs/file.c b/fs/file.c -index ba3f605..fade102 100644 ---- a/fs/file.c -+++ b/fs/file.c -@@ -15,6 +15,7 @@ - #include <linux/slab.h> - #include <linux/vmalloc.h> - #include <linux/file.h> -+#include <linux/security.h> - #include <linux/fdtable.h> - #include <linux/bitops.h> - #include <linux/interrupt.h> -@@ -255,6 +256,7 @@ int expand_files(struct files_struct *files, int nr) - * N.B. For clone tasks sharing a files structure, this test - * will limit the total number of files that can be opened. - */ -+ gr_learn_resource(current, RLIMIT_NOFILE, nr, 0); - if (nr >= rlimit(RLIMIT_NOFILE)) - return -EMFILE; - -diff --git a/fs/filesystems.c b/fs/filesystems.c -index 96f2428..f5eeb8e 100644 ---- a/fs/filesystems.c -+++ b/fs/filesystems.c -@@ -273,7 +273,12 @@ struct file_system_type *get_fs_type(const char *name) - int len = dot ? dot - name : strlen(name); - - fs = __get_fs_type(name, len); -+ -+#ifdef CONFIG_GRKERNSEC_MODHARDEN -+ if (!fs && (___request_module(true, "grsec_modharden_fs", "%.*s", len, name) == 0)) -+#else - if (!fs && (request_module("%.*s", len, name) == 0)) -+#endif - fs = __get_fs_type(name, len); - - if (dot && fs && !(fs->fs_flags & FS_HAS_SUBTYPE)) { -diff --git a/fs/fs_struct.c b/fs/fs_struct.c -index e159e68..e7d2a6f 100644 ---- a/fs/fs_struct.c -+++ b/fs/fs_struct.c -@@ -4,6 +4,7 @@ - #include <linux/path.h> - #include <linux/slab.h> - #include <linux/fs_struct.h> -+#include <linux/grsecurity.h> - #include "internal.h" - - static inline void path_get_longterm(struct path *path) -@@ -31,6 +32,7 @@ void set_fs_root(struct fs_struct *fs, struct path *path) - write_seqcount_begin(&fs->seq); - old_root = fs->root; - fs->root = *path; -+ gr_set_chroot_entries(current, path); - write_seqcount_end(&fs->seq); - spin_unlock(&fs->lock); - if (old_root.dentry) -@@ -65,6 +67,17 @@ static inline int replace_path(struct path *p, const struct path *old, const str - return 1; - } - -+static inline int replace_root_path(struct task_struct *task, struct path *p, const struct path *old, struct path *new) -+{ -+ if (likely(p->dentry != old->dentry || p->mnt != old->mnt)) -+ return 0; -+ *p = *new; -+ -+ gr_set_chroot_entries(task, new); -+ -+ return 1; -+} -+ - void chroot_fs_refs(struct path *old_root, struct path *new_root) - { - struct task_struct *g, *p; -@@ -79,7 +92,7 @@ void chroot_fs_refs(struct path *old_root, struct path *new_root) - int hits = 0; - spin_lock(&fs->lock); - write_seqcount_begin(&fs->seq); -- hits += replace_path(&fs->root, old_root, new_root); -+ hits += replace_root_path(p, &fs->root, old_root, new_root); - hits += replace_path(&fs->pwd, old_root, new_root); - write_seqcount_end(&fs->seq); - while (hits--) { -@@ -111,7 +124,8 @@ void exit_fs(struct task_struct *tsk) - task_lock(tsk); - spin_lock(&fs->lock); - tsk->fs = NULL; -- kill = !--fs->users; -+ gr_clear_chroot_entries(tsk); -+ kill = !atomic_dec_return(&fs->users); - spin_unlock(&fs->lock); - task_unlock(tsk); - if (kill) -@@ -124,7 +138,7 @@ struct fs_struct *copy_fs_struct(struct fs_struct *old) - struct fs_struct *fs = kmem_cache_alloc(fs_cachep, GFP_KERNEL); - /* We don't need to lock fs - think why ;-) */ - if (fs) { -- fs->users = 1; -+ atomic_set(&fs->users, 1); - fs->in_exec = 0; - spin_lock_init(&fs->lock); - seqcount_init(&fs->seq); -@@ -133,6 +147,9 @@ struct fs_struct *copy_fs_struct(struct fs_struct *old) - spin_lock(&old->lock); - fs->root = old->root; - path_get_longterm(&fs->root); -+ /* instead of calling gr_set_chroot_entries here, -+ we call it from every caller of this function -+ */ - fs->pwd = old->pwd; - path_get_longterm(&fs->pwd); - spin_unlock(&old->lock); -@@ -151,8 +168,9 @@ int unshare_fs_struct(void) - - task_lock(current); - spin_lock(&fs->lock); -- kill = !--fs->users; -+ kill = !atomic_dec_return(&fs->users); - current->fs = new_fs; -+ gr_set_chroot_entries(current, &new_fs->root); - spin_unlock(&fs->lock); - task_unlock(current); - -@@ -165,13 +183,13 @@ EXPORT_SYMBOL_GPL(unshare_fs_struct); - - int current_umask(void) - { -- return current->fs->umask; -+ return current->fs->umask | gr_acl_umask(); - } - EXPORT_SYMBOL(current_umask); - - /* to be mentioned only in INIT_TASK */ - struct fs_struct init_fs = { -- .users = 1, -+ .users = ATOMIC_INIT(1), - .lock = __SPIN_LOCK_UNLOCKED(init_fs.lock), - .seq = SEQCNT_ZERO, - .umask = 0022, -@@ -187,12 +205,13 @@ void daemonize_fs_struct(void) - task_lock(current); - - spin_lock(&init_fs.lock); -- init_fs.users++; -+ atomic_inc(&init_fs.users); - spin_unlock(&init_fs.lock); - - spin_lock(&fs->lock); - current->fs = &init_fs; -- kill = !--fs->users; -+ gr_set_chroot_entries(current, &current->fs->root); -+ kill = !atomic_dec_return(&fs->users); - spin_unlock(&fs->lock); - - task_unlock(current); -diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c -index 9905350..02eaec4 100644 ---- a/fs/fscache/cookie.c -+++ b/fs/fscache/cookie.c -@@ -68,11 +68,11 @@ struct fscache_cookie *__fscache_acquire_cookie( - parent ? (char *) parent->def->name : "<no-parent>", - def->name, netfs_data); - -- fscache_stat(&fscache_n_acquires); -+ fscache_stat_unchecked(&fscache_n_acquires); - - /* if there's no parent cookie, then we don't create one here either */ - if (!parent) { -- fscache_stat(&fscache_n_acquires_null); -+ fscache_stat_unchecked(&fscache_n_acquires_null); - _leave(" [no parent]"); - return NULL; - } -@@ -87,7 +87,7 @@ struct fscache_cookie *__fscache_acquire_cookie( - /* allocate and initialise a cookie */ - cookie = kmem_cache_alloc(fscache_cookie_jar, GFP_KERNEL); - if (!cookie) { -- fscache_stat(&fscache_n_acquires_oom); -+ fscache_stat_unchecked(&fscache_n_acquires_oom); - _leave(" [ENOMEM]"); - return NULL; - } -@@ -109,13 +109,13 @@ struct fscache_cookie *__fscache_acquire_cookie( - - switch (cookie->def->type) { - case FSCACHE_COOKIE_TYPE_INDEX: -- fscache_stat(&fscache_n_cookie_index); -+ fscache_stat_unchecked(&fscache_n_cookie_index); - break; - case FSCACHE_COOKIE_TYPE_DATAFILE: -- fscache_stat(&fscache_n_cookie_data); -+ fscache_stat_unchecked(&fscache_n_cookie_data); - break; - default: -- fscache_stat(&fscache_n_cookie_special); -+ fscache_stat_unchecked(&fscache_n_cookie_special); - break; - } - -@@ -126,13 +126,13 @@ struct fscache_cookie *__fscache_acquire_cookie( - if (fscache_acquire_non_index_cookie(cookie) < 0) { - atomic_dec(&parent->n_children); - __fscache_cookie_put(cookie); -- fscache_stat(&fscache_n_acquires_nobufs); -+ fscache_stat_unchecked(&fscache_n_acquires_nobufs); - _leave(" = NULL"); - return NULL; - } - } - -- fscache_stat(&fscache_n_acquires_ok); -+ fscache_stat_unchecked(&fscache_n_acquires_ok); - _leave(" = %p", cookie); - return cookie; - } -@@ -168,7 +168,7 @@ static int fscache_acquire_non_index_cookie(struct fscache_cookie *cookie) - cache = fscache_select_cache_for_object(cookie->parent); - if (!cache) { - up_read(&fscache_addremove_sem); -- fscache_stat(&fscache_n_acquires_no_cache); -+ fscache_stat_unchecked(&fscache_n_acquires_no_cache); - _leave(" = -ENOMEDIUM [no cache]"); - return -ENOMEDIUM; - } -@@ -256,12 +256,12 @@ static int fscache_alloc_object(struct fscache_cache *cache, - object = cache->ops->alloc_object(cache, cookie); - fscache_stat_d(&fscache_n_cop_alloc_object); - if (IS_ERR(object)) { -- fscache_stat(&fscache_n_object_no_alloc); -+ fscache_stat_unchecked(&fscache_n_object_no_alloc); - ret = PTR_ERR(object); - goto error; - } - -- fscache_stat(&fscache_n_object_alloc); -+ fscache_stat_unchecked(&fscache_n_object_alloc); - - object->debug_id = atomic_inc_return(&fscache_object_debug_id); - -@@ -377,10 +377,10 @@ void __fscache_update_cookie(struct fscache_cookie *cookie) - struct fscache_object *object; - struct hlist_node *_p; - -- fscache_stat(&fscache_n_updates); -+ fscache_stat_unchecked(&fscache_n_updates); - - if (!cookie) { -- fscache_stat(&fscache_n_updates_null); -+ fscache_stat_unchecked(&fscache_n_updates_null); - _leave(" [no cookie]"); - return; - } -@@ -414,12 +414,12 @@ void __fscache_relinquish_cookie(struct fscache_cookie *cookie, int retire) - struct fscache_object *object; - unsigned long event; - -- fscache_stat(&fscache_n_relinquishes); -+ fscache_stat_unchecked(&fscache_n_relinquishes); - if (retire) -- fscache_stat(&fscache_n_relinquishes_retire); -+ fscache_stat_unchecked(&fscache_n_relinquishes_retire); - - if (!cookie) { -- fscache_stat(&fscache_n_relinquishes_null); -+ fscache_stat_unchecked(&fscache_n_relinquishes_null); - _leave(" [no cookie]"); - return; - } -@@ -435,7 +435,7 @@ void __fscache_relinquish_cookie(struct fscache_cookie *cookie, int retire) - - /* wait for the cookie to finish being instantiated (or to fail) */ - if (test_bit(FSCACHE_COOKIE_CREATING, &cookie->flags)) { -- fscache_stat(&fscache_n_relinquishes_waitcrt); -+ fscache_stat_unchecked(&fscache_n_relinquishes_waitcrt); - wait_on_bit(&cookie->flags, FSCACHE_COOKIE_CREATING, - fscache_wait_bit, TASK_UNINTERRUPTIBLE); - } -diff --git a/fs/fscache/internal.h b/fs/fscache/internal.h -index f6aad48..88dcf26 100644 ---- a/fs/fscache/internal.h -+++ b/fs/fscache/internal.h -@@ -144,94 +144,94 @@ extern void fscache_proc_cleanup(void); - extern atomic_t fscache_n_ops_processed[FSCACHE_MAX_THREADS]; - extern atomic_t fscache_n_objs_processed[FSCACHE_MAX_THREADS]; - --extern atomic_t fscache_n_op_pend; --extern atomic_t fscache_n_op_run; --extern atomic_t fscache_n_op_enqueue; --extern atomic_t fscache_n_op_deferred_release; --extern atomic_t fscache_n_op_release; --extern atomic_t fscache_n_op_gc; --extern atomic_t fscache_n_op_cancelled; --extern atomic_t fscache_n_op_rejected; -+extern atomic_unchecked_t fscache_n_op_pend; -+extern atomic_unchecked_t fscache_n_op_run; -+extern atomic_unchecked_t fscache_n_op_enqueue; -+extern atomic_unchecked_t fscache_n_op_deferred_release; -+extern atomic_unchecked_t fscache_n_op_release; -+extern atomic_unchecked_t fscache_n_op_gc; -+extern atomic_unchecked_t fscache_n_op_cancelled; -+extern atomic_unchecked_t fscache_n_op_rejected; - --extern atomic_t fscache_n_attr_changed; --extern atomic_t fscache_n_attr_changed_ok; --extern atomic_t fscache_n_attr_changed_nobufs; --extern atomic_t fscache_n_attr_changed_nomem; --extern atomic_t fscache_n_attr_changed_calls; -+extern atomic_unchecked_t fscache_n_attr_changed; -+extern atomic_unchecked_t fscache_n_attr_changed_ok; -+extern atomic_unchecked_t fscache_n_attr_changed_nobufs; -+extern atomic_unchecked_t fscache_n_attr_changed_nomem; -+extern atomic_unchecked_t fscache_n_attr_changed_calls; - --extern atomic_t fscache_n_allocs; --extern atomic_t fscache_n_allocs_ok; --extern atomic_t fscache_n_allocs_wait; --extern atomic_t fscache_n_allocs_nobufs; --extern atomic_t fscache_n_allocs_intr; --extern atomic_t fscache_n_allocs_object_dead; --extern atomic_t fscache_n_alloc_ops; --extern atomic_t fscache_n_alloc_op_waits; -+extern atomic_unchecked_t fscache_n_allocs; -+extern atomic_unchecked_t fscache_n_allocs_ok; -+extern atomic_unchecked_t fscache_n_allocs_wait; -+extern atomic_unchecked_t fscache_n_allocs_nobufs; -+extern atomic_unchecked_t fscache_n_allocs_intr; -+extern atomic_unchecked_t fscache_n_allocs_object_dead; -+extern atomic_unchecked_t fscache_n_alloc_ops; -+extern atomic_unchecked_t fscache_n_alloc_op_waits; - --extern atomic_t fscache_n_retrievals; --extern atomic_t fscache_n_retrievals_ok; --extern atomic_t fscache_n_retrievals_wait; --extern atomic_t fscache_n_retrievals_nodata; --extern atomic_t fscache_n_retrievals_nobufs; --extern atomic_t fscache_n_retrievals_intr; --extern atomic_t fscache_n_retrievals_nomem; --extern atomic_t fscache_n_retrievals_object_dead; --extern atomic_t fscache_n_retrieval_ops; --extern atomic_t fscache_n_retrieval_op_waits; -+extern atomic_unchecked_t fscache_n_retrievals; -+extern atomic_unchecked_t fscache_n_retrievals_ok; -+extern atomic_unchecked_t fscache_n_retrievals_wait; -+extern atomic_unchecked_t fscache_n_retrievals_nodata; -+extern atomic_unchecked_t fscache_n_retrievals_nobufs; -+extern atomic_unchecked_t fscache_n_retrievals_intr; -+extern atomic_unchecked_t fscache_n_retrievals_nomem; -+extern atomic_unchecked_t fscache_n_retrievals_object_dead; -+extern atomic_unchecked_t fscache_n_retrieval_ops; -+extern atomic_unchecked_t fscache_n_retrieval_op_waits; - --extern atomic_t fscache_n_stores; --extern atomic_t fscache_n_stores_ok; --extern atomic_t fscache_n_stores_again; --extern atomic_t fscache_n_stores_nobufs; --extern atomic_t fscache_n_stores_oom; --extern atomic_t fscache_n_store_ops; --extern atomic_t fscache_n_store_calls; --extern atomic_t fscache_n_store_pages; --extern atomic_t fscache_n_store_radix_deletes; --extern atomic_t fscache_n_store_pages_over_limit; -+extern atomic_unchecked_t fscache_n_stores; -+extern atomic_unchecked_t fscache_n_stores_ok; -+extern atomic_unchecked_t fscache_n_stores_again; -+extern atomic_unchecked_t fscache_n_stores_nobufs; -+extern atomic_unchecked_t fscache_n_stores_oom; -+extern atomic_unchecked_t fscache_n_store_ops; -+extern atomic_unchecked_t fscache_n_store_calls; -+extern atomic_unchecked_t fscache_n_store_pages; -+extern atomic_unchecked_t fscache_n_store_radix_deletes; -+extern atomic_unchecked_t fscache_n_store_pages_over_limit; - --extern atomic_t fscache_n_store_vmscan_not_storing; --extern atomic_t fscache_n_store_vmscan_gone; --extern atomic_t fscache_n_store_vmscan_busy; --extern atomic_t fscache_n_store_vmscan_cancelled; -+extern atomic_unchecked_t fscache_n_store_vmscan_not_storing; -+extern atomic_unchecked_t fscache_n_store_vmscan_gone; -+extern atomic_unchecked_t fscache_n_store_vmscan_busy; -+extern atomic_unchecked_t fscache_n_store_vmscan_cancelled; - --extern atomic_t fscache_n_marks; --extern atomic_t fscache_n_uncaches; -+extern atomic_unchecked_t fscache_n_marks; -+extern atomic_unchecked_t fscache_n_uncaches; - --extern atomic_t fscache_n_acquires; --extern atomic_t fscache_n_acquires_null; --extern atomic_t fscache_n_acquires_no_cache; --extern atomic_t fscache_n_acquires_ok; --extern atomic_t fscache_n_acquires_nobufs; --extern atomic_t fscache_n_acquires_oom; -+extern atomic_unchecked_t fscache_n_acquires; -+extern atomic_unchecked_t fscache_n_acquires_null; -+extern atomic_unchecked_t fscache_n_acquires_no_cache; -+extern atomic_unchecked_t fscache_n_acquires_ok; -+extern atomic_unchecked_t fscache_n_acquires_nobufs; -+extern atomic_unchecked_t fscache_n_acquires_oom; - --extern atomic_t fscache_n_updates; --extern atomic_t fscache_n_updates_null; --extern atomic_t fscache_n_updates_run; -+extern atomic_unchecked_t fscache_n_updates; -+extern atomic_unchecked_t fscache_n_updates_null; -+extern atomic_unchecked_t fscache_n_updates_run; - --extern atomic_t fscache_n_relinquishes; --extern atomic_t fscache_n_relinquishes_null; --extern atomic_t fscache_n_relinquishes_waitcrt; --extern atomic_t fscache_n_relinquishes_retire; -+extern atomic_unchecked_t fscache_n_relinquishes; -+extern atomic_unchecked_t fscache_n_relinquishes_null; -+extern atomic_unchecked_t fscache_n_relinquishes_waitcrt; -+extern atomic_unchecked_t fscache_n_relinquishes_retire; - --extern atomic_t fscache_n_cookie_index; --extern atomic_t fscache_n_cookie_data; --extern atomic_t fscache_n_cookie_special; -+extern atomic_unchecked_t fscache_n_cookie_index; -+extern atomic_unchecked_t fscache_n_cookie_data; -+extern atomic_unchecked_t fscache_n_cookie_special; - --extern atomic_t fscache_n_object_alloc; --extern atomic_t fscache_n_object_no_alloc; --extern atomic_t fscache_n_object_lookups; --extern atomic_t fscache_n_object_lookups_negative; --extern atomic_t fscache_n_object_lookups_positive; --extern atomic_t fscache_n_object_lookups_timed_out; --extern atomic_t fscache_n_object_created; --extern atomic_t fscache_n_object_avail; --extern atomic_t fscache_n_object_dead; -+extern atomic_unchecked_t fscache_n_object_alloc; -+extern atomic_unchecked_t fscache_n_object_no_alloc; -+extern atomic_unchecked_t fscache_n_object_lookups; -+extern atomic_unchecked_t fscache_n_object_lookups_negative; -+extern atomic_unchecked_t fscache_n_object_lookups_positive; -+extern atomic_unchecked_t fscache_n_object_lookups_timed_out; -+extern atomic_unchecked_t fscache_n_object_created; -+extern atomic_unchecked_t fscache_n_object_avail; -+extern atomic_unchecked_t fscache_n_object_dead; - --extern atomic_t fscache_n_checkaux_none; --extern atomic_t fscache_n_checkaux_okay; --extern atomic_t fscache_n_checkaux_update; --extern atomic_t fscache_n_checkaux_obsolete; -+extern atomic_unchecked_t fscache_n_checkaux_none; -+extern atomic_unchecked_t fscache_n_checkaux_okay; -+extern atomic_unchecked_t fscache_n_checkaux_update; -+extern atomic_unchecked_t fscache_n_checkaux_obsolete; - - extern atomic_t fscache_n_cop_alloc_object; - extern atomic_t fscache_n_cop_lookup_object; -@@ -255,6 +255,11 @@ static inline void fscache_stat(atomic_t *stat) - atomic_inc(stat); - } - -+static inline void fscache_stat_unchecked(atomic_unchecked_t *stat) -+{ -+ atomic_inc_unchecked(stat); -+} -+ - static inline void fscache_stat_d(atomic_t *stat) - { - atomic_dec(stat); -@@ -267,6 +272,7 @@ extern const struct file_operations fscache_stats_fops; - - #define __fscache_stat(stat) (NULL) - #define fscache_stat(stat) do {} while (0) -+#define fscache_stat_unchecked(stat) do {} while (0) - #define fscache_stat_d(stat) do {} while (0) - #endif - -diff --git a/fs/fscache/object.c b/fs/fscache/object.c -index b6b897c..0ffff9c 100644 ---- a/fs/fscache/object.c -+++ b/fs/fscache/object.c -@@ -128,7 +128,7 @@ static void fscache_object_state_machine(struct fscache_object *object) - /* update the object metadata on disk */ - case FSCACHE_OBJECT_UPDATING: - clear_bit(FSCACHE_OBJECT_EV_UPDATE, &object->events); -- fscache_stat(&fscache_n_updates_run); -+ fscache_stat_unchecked(&fscache_n_updates_run); - fscache_stat(&fscache_n_cop_update_object); - object->cache->ops->update_object(object); - fscache_stat_d(&fscache_n_cop_update_object); -@@ -217,7 +217,7 @@ static void fscache_object_state_machine(struct fscache_object *object) - spin_lock(&object->lock); - object->state = FSCACHE_OBJECT_DEAD; - spin_unlock(&object->lock); -- fscache_stat(&fscache_n_object_dead); -+ fscache_stat_unchecked(&fscache_n_object_dead); - goto terminal_transit; - - /* handle the parent cache of this object being withdrawn from -@@ -232,7 +232,7 @@ static void fscache_object_state_machine(struct fscache_object *object) - spin_lock(&object->lock); - object->state = FSCACHE_OBJECT_DEAD; - spin_unlock(&object->lock); -- fscache_stat(&fscache_n_object_dead); -+ fscache_stat_unchecked(&fscache_n_object_dead); - goto terminal_transit; - - /* complain about the object being woken up once it is -@@ -461,7 +461,7 @@ static void fscache_lookup_object(struct fscache_object *object) - parent->cookie->def->name, cookie->def->name, - object->cache->tag->name); - -- fscache_stat(&fscache_n_object_lookups); -+ fscache_stat_unchecked(&fscache_n_object_lookups); - fscache_stat(&fscache_n_cop_lookup_object); - ret = object->cache->ops->lookup_object(object); - fscache_stat_d(&fscache_n_cop_lookup_object); -@@ -472,7 +472,7 @@ static void fscache_lookup_object(struct fscache_object *object) - if (ret == -ETIMEDOUT) { - /* probably stuck behind another object, so move this one to - * the back of the queue */ -- fscache_stat(&fscache_n_object_lookups_timed_out); -+ fscache_stat_unchecked(&fscache_n_object_lookups_timed_out); - set_bit(FSCACHE_OBJECT_EV_REQUEUE, &object->events); - } - -@@ -495,7 +495,7 @@ void fscache_object_lookup_negative(struct fscache_object *object) - - spin_lock(&object->lock); - if (object->state == FSCACHE_OBJECT_LOOKING_UP) { -- fscache_stat(&fscache_n_object_lookups_negative); -+ fscache_stat_unchecked(&fscache_n_object_lookups_negative); - - /* transit here to allow write requests to begin stacking up - * and read requests to begin returning ENODATA */ -@@ -541,7 +541,7 @@ void fscache_obtained_object(struct fscache_object *object) - * result, in which case there may be data available */ - spin_lock(&object->lock); - if (object->state == FSCACHE_OBJECT_LOOKING_UP) { -- fscache_stat(&fscache_n_object_lookups_positive); -+ fscache_stat_unchecked(&fscache_n_object_lookups_positive); - - clear_bit(FSCACHE_COOKIE_NO_DATA_YET, &cookie->flags); - -@@ -555,7 +555,7 @@ void fscache_obtained_object(struct fscache_object *object) - set_bit(FSCACHE_OBJECT_EV_REQUEUE, &object->events); - } else { - ASSERTCMP(object->state, ==, FSCACHE_OBJECT_CREATING); -- fscache_stat(&fscache_n_object_created); -+ fscache_stat_unchecked(&fscache_n_object_created); - - object->state = FSCACHE_OBJECT_AVAILABLE; - spin_unlock(&object->lock); -@@ -602,7 +602,7 @@ static void fscache_object_available(struct fscache_object *object) - fscache_enqueue_dependents(object); - - fscache_hist(fscache_obj_instantiate_histogram, object->lookup_jif); -- fscache_stat(&fscache_n_object_avail); -+ fscache_stat_unchecked(&fscache_n_object_avail); - - _leave(""); - } -@@ -861,7 +861,7 @@ enum fscache_checkaux fscache_check_aux(struct fscache_object *object, - enum fscache_checkaux result; - - if (!object->cookie->def->check_aux) { -- fscache_stat(&fscache_n_checkaux_none); -+ fscache_stat_unchecked(&fscache_n_checkaux_none); - return FSCACHE_CHECKAUX_OKAY; - } - -@@ -870,17 +870,17 @@ enum fscache_checkaux fscache_check_aux(struct fscache_object *object, - switch (result) { - /* entry okay as is */ - case FSCACHE_CHECKAUX_OKAY: -- fscache_stat(&fscache_n_checkaux_okay); -+ fscache_stat_unchecked(&fscache_n_checkaux_okay); - break; - - /* entry requires update */ - case FSCACHE_CHECKAUX_NEEDS_UPDATE: -- fscache_stat(&fscache_n_checkaux_update); -+ fscache_stat_unchecked(&fscache_n_checkaux_update); - break; - - /* entry requires deletion */ - case FSCACHE_CHECKAUX_OBSOLETE: -- fscache_stat(&fscache_n_checkaux_obsolete); -+ fscache_stat_unchecked(&fscache_n_checkaux_obsolete); - break; - - default: -diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c -index 30afdfa..2256596 100644 ---- a/fs/fscache/operation.c -+++ b/fs/fscache/operation.c -@@ -17,7 +17,7 @@ - #include <linux/slab.h> - #include "internal.h" - --atomic_t fscache_op_debug_id; -+atomic_unchecked_t fscache_op_debug_id; - EXPORT_SYMBOL(fscache_op_debug_id); - - /** -@@ -38,7 +38,7 @@ void fscache_enqueue_operation(struct fscache_operation *op) - ASSERTCMP(op->object->state, >=, FSCACHE_OBJECT_AVAILABLE); - ASSERTCMP(atomic_read(&op->usage), >, 0); - -- fscache_stat(&fscache_n_op_enqueue); -+ fscache_stat_unchecked(&fscache_n_op_enqueue); - switch (op->flags & FSCACHE_OP_TYPE) { - case FSCACHE_OP_ASYNC: - _debug("queue async"); -@@ -69,7 +69,7 @@ static void fscache_run_op(struct fscache_object *object, - wake_up_bit(&op->flags, FSCACHE_OP_WAITING); - if (op->processor) - fscache_enqueue_operation(op); -- fscache_stat(&fscache_n_op_run); -+ fscache_stat_unchecked(&fscache_n_op_run); - } - - /* -@@ -98,11 +98,11 @@ int fscache_submit_exclusive_op(struct fscache_object *object, - if (object->n_ops > 1) { - atomic_inc(&op->usage); - list_add_tail(&op->pend_link, &object->pending_ops); -- fscache_stat(&fscache_n_op_pend); -+ fscache_stat_unchecked(&fscache_n_op_pend); - } else if (!list_empty(&object->pending_ops)) { - atomic_inc(&op->usage); - list_add_tail(&op->pend_link, &object->pending_ops); -- fscache_stat(&fscache_n_op_pend); -+ fscache_stat_unchecked(&fscache_n_op_pend); - fscache_start_operations(object); - } else { - ASSERTCMP(object->n_in_progress, ==, 0); -@@ -118,7 +118,7 @@ int fscache_submit_exclusive_op(struct fscache_object *object, - object->n_exclusive++; /* reads and writes must wait */ - atomic_inc(&op->usage); - list_add_tail(&op->pend_link, &object->pending_ops); -- fscache_stat(&fscache_n_op_pend); -+ fscache_stat_unchecked(&fscache_n_op_pend); - ret = 0; - } else { - /* not allowed to submit ops in any other state */ -@@ -203,11 +203,11 @@ int fscache_submit_op(struct fscache_object *object, - if (object->n_exclusive > 0) { - atomic_inc(&op->usage); - list_add_tail(&op->pend_link, &object->pending_ops); -- fscache_stat(&fscache_n_op_pend); -+ fscache_stat_unchecked(&fscache_n_op_pend); - } else if (!list_empty(&object->pending_ops)) { - atomic_inc(&op->usage); - list_add_tail(&op->pend_link, &object->pending_ops); -- fscache_stat(&fscache_n_op_pend); -+ fscache_stat_unchecked(&fscache_n_op_pend); - fscache_start_operations(object); - } else { - ASSERTCMP(object->n_exclusive, ==, 0); -@@ -219,12 +219,12 @@ int fscache_submit_op(struct fscache_object *object, - object->n_ops++; - atomic_inc(&op->usage); - list_add_tail(&op->pend_link, &object->pending_ops); -- fscache_stat(&fscache_n_op_pend); -+ fscache_stat_unchecked(&fscache_n_op_pend); - ret = 0; - } else if (object->state == FSCACHE_OBJECT_DYING || - object->state == FSCACHE_OBJECT_LC_DYING || - object->state == FSCACHE_OBJECT_WITHDRAWING) { -- fscache_stat(&fscache_n_op_rejected); -+ fscache_stat_unchecked(&fscache_n_op_rejected); - ret = -ENOBUFS; - } else if (!test_bit(FSCACHE_IOERROR, &object->cache->flags)) { - fscache_report_unexpected_submission(object, op, ostate); -@@ -294,7 +294,7 @@ int fscache_cancel_op(struct fscache_operation *op) - - ret = -EBUSY; - if (!list_empty(&op->pend_link)) { -- fscache_stat(&fscache_n_op_cancelled); -+ fscache_stat_unchecked(&fscache_n_op_cancelled); - list_del_init(&op->pend_link); - object->n_ops--; - if (test_bit(FSCACHE_OP_EXCLUSIVE, &op->flags)) -@@ -331,7 +331,7 @@ void fscache_put_operation(struct fscache_operation *op) - if (test_and_set_bit(FSCACHE_OP_DEAD, &op->flags)) - BUG(); - -- fscache_stat(&fscache_n_op_release); -+ fscache_stat_unchecked(&fscache_n_op_release); - - if (op->release) { - op->release(op); -@@ -348,7 +348,7 @@ void fscache_put_operation(struct fscache_operation *op) - * lock, and defer it otherwise */ - if (!spin_trylock(&object->lock)) { - _debug("defer put"); -- fscache_stat(&fscache_n_op_deferred_release); -+ fscache_stat_unchecked(&fscache_n_op_deferred_release); - - cache = object->cache; - spin_lock(&cache->op_gc_list_lock); -@@ -410,7 +410,7 @@ void fscache_operation_gc(struct work_struct *work) - - _debug("GC DEFERRED REL OBJ%x OP%x", - object->debug_id, op->debug_id); -- fscache_stat(&fscache_n_op_gc); -+ fscache_stat_unchecked(&fscache_n_op_gc); - - ASSERTCMP(atomic_read(&op->usage), ==, 0); - -diff --git a/fs/fscache/page.c b/fs/fscache/page.c -index 3f7a59b..cf196cc 100644 ---- a/fs/fscache/page.c -+++ b/fs/fscache/page.c -@@ -60,7 +60,7 @@ bool __fscache_maybe_release_page(struct fscache_cookie *cookie, - val = radix_tree_lookup(&cookie->stores, page->index); - if (!val) { - rcu_read_unlock(); -- fscache_stat(&fscache_n_store_vmscan_not_storing); -+ fscache_stat_unchecked(&fscache_n_store_vmscan_not_storing); - __fscache_uncache_page(cookie, page); - return true; - } -@@ -90,11 +90,11 @@ bool __fscache_maybe_release_page(struct fscache_cookie *cookie, - spin_unlock(&cookie->stores_lock); - - if (xpage) { -- fscache_stat(&fscache_n_store_vmscan_cancelled); -- fscache_stat(&fscache_n_store_radix_deletes); -+ fscache_stat_unchecked(&fscache_n_store_vmscan_cancelled); -+ fscache_stat_unchecked(&fscache_n_store_radix_deletes); - ASSERTCMP(xpage, ==, page); - } else { -- fscache_stat(&fscache_n_store_vmscan_gone); -+ fscache_stat_unchecked(&fscache_n_store_vmscan_gone); - } - - wake_up_bit(&cookie->flags, 0); -@@ -107,7 +107,7 @@ page_busy: - /* we might want to wait here, but that could deadlock the allocator as - * the work threads writing to the cache may all end up sleeping - * on memory allocation */ -- fscache_stat(&fscache_n_store_vmscan_busy); -+ fscache_stat_unchecked(&fscache_n_store_vmscan_busy); - return false; - } - EXPORT_SYMBOL(__fscache_maybe_release_page); -@@ -131,7 +131,7 @@ static void fscache_end_page_write(struct fscache_object *object, - FSCACHE_COOKIE_STORING_TAG); - if (!radix_tree_tag_get(&cookie->stores, page->index, - FSCACHE_COOKIE_PENDING_TAG)) { -- fscache_stat(&fscache_n_store_radix_deletes); -+ fscache_stat_unchecked(&fscache_n_store_radix_deletes); - xpage = radix_tree_delete(&cookie->stores, page->index); - } - spin_unlock(&cookie->stores_lock); -@@ -152,7 +152,7 @@ static void fscache_attr_changed_op(struct fscache_operation *op) - - _enter("{OBJ%x OP%x}", object->debug_id, op->debug_id); - -- fscache_stat(&fscache_n_attr_changed_calls); -+ fscache_stat_unchecked(&fscache_n_attr_changed_calls); - - if (fscache_object_is_active(object)) { - fscache_stat(&fscache_n_cop_attr_changed); -@@ -177,11 +177,11 @@ int __fscache_attr_changed(struct fscache_cookie *cookie) - - ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX); - -- fscache_stat(&fscache_n_attr_changed); -+ fscache_stat_unchecked(&fscache_n_attr_changed); - - op = kzalloc(sizeof(*op), GFP_KERNEL); - if (!op) { -- fscache_stat(&fscache_n_attr_changed_nomem); -+ fscache_stat_unchecked(&fscache_n_attr_changed_nomem); - _leave(" = -ENOMEM"); - return -ENOMEM; - } -@@ -199,7 +199,7 @@ int __fscache_attr_changed(struct fscache_cookie *cookie) - if (fscache_submit_exclusive_op(object, op) < 0) - goto nobufs; - spin_unlock(&cookie->lock); -- fscache_stat(&fscache_n_attr_changed_ok); -+ fscache_stat_unchecked(&fscache_n_attr_changed_ok); - fscache_put_operation(op); - _leave(" = 0"); - return 0; -@@ -207,7 +207,7 @@ int __fscache_attr_changed(struct fscache_cookie *cookie) - nobufs: - spin_unlock(&cookie->lock); - kfree(op); -- fscache_stat(&fscache_n_attr_changed_nobufs); -+ fscache_stat_unchecked(&fscache_n_attr_changed_nobufs); - _leave(" = %d", -ENOBUFS); - return -ENOBUFS; - } -@@ -243,7 +243,7 @@ static struct fscache_retrieval *fscache_alloc_retrieval( - /* allocate a retrieval operation and attempt to submit it */ - op = kzalloc(sizeof(*op), GFP_NOIO); - if (!op) { -- fscache_stat(&fscache_n_retrievals_nomem); -+ fscache_stat_unchecked(&fscache_n_retrievals_nomem); - return NULL; - } - -@@ -271,13 +271,13 @@ static int fscache_wait_for_deferred_lookup(struct fscache_cookie *cookie) - return 0; - } - -- fscache_stat(&fscache_n_retrievals_wait); -+ fscache_stat_unchecked(&fscache_n_retrievals_wait); - - jif = jiffies; - if (wait_on_bit(&cookie->flags, FSCACHE_COOKIE_LOOKING_UP, - fscache_wait_bit_interruptible, - TASK_INTERRUPTIBLE) != 0) { -- fscache_stat(&fscache_n_retrievals_intr); -+ fscache_stat_unchecked(&fscache_n_retrievals_intr); - _leave(" = -ERESTARTSYS"); - return -ERESTARTSYS; - } -@@ -295,8 +295,8 @@ static int fscache_wait_for_deferred_lookup(struct fscache_cookie *cookie) - */ - static int fscache_wait_for_retrieval_activation(struct fscache_object *object, - struct fscache_retrieval *op, -- atomic_t *stat_op_waits, -- atomic_t *stat_object_dead) -+ atomic_unchecked_t *stat_op_waits, -+ atomic_unchecked_t *stat_object_dead) - { - int ret; - -@@ -304,7 +304,7 @@ static int fscache_wait_for_retrieval_activation(struct fscache_object *object, - goto check_if_dead; - - _debug(">>> WT"); -- fscache_stat(stat_op_waits); -+ fscache_stat_unchecked(stat_op_waits); - if (wait_on_bit(&op->op.flags, FSCACHE_OP_WAITING, - fscache_wait_bit_interruptible, - TASK_INTERRUPTIBLE) < 0) { -@@ -321,7 +321,7 @@ static int fscache_wait_for_retrieval_activation(struct fscache_object *object, - - check_if_dead: - if (unlikely(fscache_object_is_dead(object))) { -- fscache_stat(stat_object_dead); -+ fscache_stat_unchecked(stat_object_dead); - return -ENOBUFS; - } - return 0; -@@ -348,7 +348,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie, - - _enter("%p,%p,,,", cookie, page); - -- fscache_stat(&fscache_n_retrievals); -+ fscache_stat_unchecked(&fscache_n_retrievals); - - if (hlist_empty(&cookie->backing_objects)) - goto nobufs; -@@ -381,7 +381,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie, - goto nobufs_unlock; - spin_unlock(&cookie->lock); - -- fscache_stat(&fscache_n_retrieval_ops); -+ fscache_stat_unchecked(&fscache_n_retrieval_ops); - - /* pin the netfs read context in case we need to do the actual netfs - * read because we've encountered a cache read failure */ -@@ -411,15 +411,15 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie, - - error: - if (ret == -ENOMEM) -- fscache_stat(&fscache_n_retrievals_nomem); -+ fscache_stat_unchecked(&fscache_n_retrievals_nomem); - else if (ret == -ERESTARTSYS) -- fscache_stat(&fscache_n_retrievals_intr); -+ fscache_stat_unchecked(&fscache_n_retrievals_intr); - else if (ret == -ENODATA) -- fscache_stat(&fscache_n_retrievals_nodata); -+ fscache_stat_unchecked(&fscache_n_retrievals_nodata); - else if (ret < 0) -- fscache_stat(&fscache_n_retrievals_nobufs); -+ fscache_stat_unchecked(&fscache_n_retrievals_nobufs); - else -- fscache_stat(&fscache_n_retrievals_ok); -+ fscache_stat_unchecked(&fscache_n_retrievals_ok); - - fscache_put_retrieval(op); - _leave(" = %d", ret); -@@ -429,7 +429,7 @@ nobufs_unlock: - spin_unlock(&cookie->lock); - kfree(op); - nobufs: -- fscache_stat(&fscache_n_retrievals_nobufs); -+ fscache_stat_unchecked(&fscache_n_retrievals_nobufs); - _leave(" = -ENOBUFS"); - return -ENOBUFS; - } -@@ -467,7 +467,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie, - - _enter("%p,,%d,,,", cookie, *nr_pages); - -- fscache_stat(&fscache_n_retrievals); -+ fscache_stat_unchecked(&fscache_n_retrievals); - - if (hlist_empty(&cookie->backing_objects)) - goto nobufs; -@@ -497,7 +497,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie, - goto nobufs_unlock; - spin_unlock(&cookie->lock); - -- fscache_stat(&fscache_n_retrieval_ops); -+ fscache_stat_unchecked(&fscache_n_retrieval_ops); - - /* pin the netfs read context in case we need to do the actual netfs - * read because we've encountered a cache read failure */ -@@ -527,15 +527,15 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie, - - error: - if (ret == -ENOMEM) -- fscache_stat(&fscache_n_retrievals_nomem); -+ fscache_stat_unchecked(&fscache_n_retrievals_nomem); - else if (ret == -ERESTARTSYS) -- fscache_stat(&fscache_n_retrievals_intr); -+ fscache_stat_unchecked(&fscache_n_retrievals_intr); - else if (ret == -ENODATA) -- fscache_stat(&fscache_n_retrievals_nodata); -+ fscache_stat_unchecked(&fscache_n_retrievals_nodata); - else if (ret < 0) -- fscache_stat(&fscache_n_retrievals_nobufs); -+ fscache_stat_unchecked(&fscache_n_retrievals_nobufs); - else -- fscache_stat(&fscache_n_retrievals_ok); -+ fscache_stat_unchecked(&fscache_n_retrievals_ok); - - fscache_put_retrieval(op); - _leave(" = %d", ret); -@@ -545,7 +545,7 @@ nobufs_unlock: - spin_unlock(&cookie->lock); - kfree(op); - nobufs: -- fscache_stat(&fscache_n_retrievals_nobufs); -+ fscache_stat_unchecked(&fscache_n_retrievals_nobufs); - _leave(" = -ENOBUFS"); - return -ENOBUFS; - } -@@ -569,7 +569,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie, - - _enter("%p,%p,,,", cookie, page); - -- fscache_stat(&fscache_n_allocs); -+ fscache_stat_unchecked(&fscache_n_allocs); - - if (hlist_empty(&cookie->backing_objects)) - goto nobufs; -@@ -595,7 +595,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie, - goto nobufs_unlock; - spin_unlock(&cookie->lock); - -- fscache_stat(&fscache_n_alloc_ops); -+ fscache_stat_unchecked(&fscache_n_alloc_ops); - - ret = fscache_wait_for_retrieval_activation( - object, op, -@@ -611,11 +611,11 @@ int __fscache_alloc_page(struct fscache_cookie *cookie, - - error: - if (ret == -ERESTARTSYS) -- fscache_stat(&fscache_n_allocs_intr); -+ fscache_stat_unchecked(&fscache_n_allocs_intr); - else if (ret < 0) -- fscache_stat(&fscache_n_allocs_nobufs); -+ fscache_stat_unchecked(&fscache_n_allocs_nobufs); - else -- fscache_stat(&fscache_n_allocs_ok); -+ fscache_stat_unchecked(&fscache_n_allocs_ok); - - fscache_put_retrieval(op); - _leave(" = %d", ret); -@@ -625,7 +625,7 @@ nobufs_unlock: - spin_unlock(&cookie->lock); - kfree(op); - nobufs: -- fscache_stat(&fscache_n_allocs_nobufs); -+ fscache_stat_unchecked(&fscache_n_allocs_nobufs); - _leave(" = -ENOBUFS"); - return -ENOBUFS; - } -@@ -666,7 +666,7 @@ static void fscache_write_op(struct fscache_operation *_op) - - spin_lock(&cookie->stores_lock); - -- fscache_stat(&fscache_n_store_calls); -+ fscache_stat_unchecked(&fscache_n_store_calls); - - /* find a page to store */ - page = NULL; -@@ -677,7 +677,7 @@ static void fscache_write_op(struct fscache_operation *_op) - page = results[0]; - _debug("gang %d [%lx]", n, page->index); - if (page->index > op->store_limit) { -- fscache_stat(&fscache_n_store_pages_over_limit); -+ fscache_stat_unchecked(&fscache_n_store_pages_over_limit); - goto superseded; - } - -@@ -689,7 +689,7 @@ static void fscache_write_op(struct fscache_operation *_op) - spin_unlock(&cookie->stores_lock); - spin_unlock(&object->lock); - -- fscache_stat(&fscache_n_store_pages); -+ fscache_stat_unchecked(&fscache_n_store_pages); - fscache_stat(&fscache_n_cop_write_page); - ret = object->cache->ops->write_page(op, page); - fscache_stat_d(&fscache_n_cop_write_page); -@@ -757,7 +757,7 @@ int __fscache_write_page(struct fscache_cookie *cookie, - ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX); - ASSERT(PageFsCache(page)); - -- fscache_stat(&fscache_n_stores); -+ fscache_stat_unchecked(&fscache_n_stores); - - op = kzalloc(sizeof(*op), GFP_NOIO); - if (!op) -@@ -808,7 +808,7 @@ int __fscache_write_page(struct fscache_cookie *cookie, - spin_unlock(&cookie->stores_lock); - spin_unlock(&object->lock); - -- op->op.debug_id = atomic_inc_return(&fscache_op_debug_id); -+ op->op.debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id); - op->store_limit = object->store_limit; - - if (fscache_submit_op(object, &op->op) < 0) -@@ -816,8 +816,8 @@ int __fscache_write_page(struct fscache_cookie *cookie, - - spin_unlock(&cookie->lock); - radix_tree_preload_end(); -- fscache_stat(&fscache_n_store_ops); -- fscache_stat(&fscache_n_stores_ok); -+ fscache_stat_unchecked(&fscache_n_store_ops); -+ fscache_stat_unchecked(&fscache_n_stores_ok); - - /* the work queue now carries its own ref on the object */ - fscache_put_operation(&op->op); -@@ -825,14 +825,14 @@ int __fscache_write_page(struct fscache_cookie *cookie, - return 0; - - already_queued: -- fscache_stat(&fscache_n_stores_again); -+ fscache_stat_unchecked(&fscache_n_stores_again); - already_pending: - spin_unlock(&cookie->stores_lock); - spin_unlock(&object->lock); - spin_unlock(&cookie->lock); - radix_tree_preload_end(); - kfree(op); -- fscache_stat(&fscache_n_stores_ok); -+ fscache_stat_unchecked(&fscache_n_stores_ok); - _leave(" = 0"); - return 0; - -@@ -851,14 +851,14 @@ nobufs: - spin_unlock(&cookie->lock); - radix_tree_preload_end(); - kfree(op); -- fscache_stat(&fscache_n_stores_nobufs); -+ fscache_stat_unchecked(&fscache_n_stores_nobufs); - _leave(" = -ENOBUFS"); - return -ENOBUFS; - - nomem_free: - kfree(op); - nomem: -- fscache_stat(&fscache_n_stores_oom); -+ fscache_stat_unchecked(&fscache_n_stores_oom); - _leave(" = -ENOMEM"); - return -ENOMEM; - } -@@ -876,7 +876,7 @@ void __fscache_uncache_page(struct fscache_cookie *cookie, struct page *page) - ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX); - ASSERTCMP(page, !=, NULL); - -- fscache_stat(&fscache_n_uncaches); -+ fscache_stat_unchecked(&fscache_n_uncaches); - - /* cache withdrawal may beat us to it */ - if (!PageFsCache(page)) -@@ -929,7 +929,7 @@ void fscache_mark_pages_cached(struct fscache_retrieval *op, - unsigned long loop; - - #ifdef CONFIG_FSCACHE_STATS -- atomic_add(pagevec->nr, &fscache_n_marks); -+ atomic_add_unchecked(pagevec->nr, &fscache_n_marks); - #endif - - for (loop = 0; loop < pagevec->nr; loop++) { -diff --git a/fs/fscache/stats.c b/fs/fscache/stats.c -index 4765190..2a067f2 100644 ---- a/fs/fscache/stats.c -+++ b/fs/fscache/stats.c -@@ -18,95 +18,95 @@ - /* - * operation counters - */ --atomic_t fscache_n_op_pend; --atomic_t fscache_n_op_run; --atomic_t fscache_n_op_enqueue; --atomic_t fscache_n_op_requeue; --atomic_t fscache_n_op_deferred_release; --atomic_t fscache_n_op_release; --atomic_t fscache_n_op_gc; --atomic_t fscache_n_op_cancelled; --atomic_t fscache_n_op_rejected; -+atomic_unchecked_t fscache_n_op_pend; -+atomic_unchecked_t fscache_n_op_run; -+atomic_unchecked_t fscache_n_op_enqueue; -+atomic_unchecked_t fscache_n_op_requeue; -+atomic_unchecked_t fscache_n_op_deferred_release; -+atomic_unchecked_t fscache_n_op_release; -+atomic_unchecked_t fscache_n_op_gc; -+atomic_unchecked_t fscache_n_op_cancelled; -+atomic_unchecked_t fscache_n_op_rejected; - --atomic_t fscache_n_attr_changed; --atomic_t fscache_n_attr_changed_ok; --atomic_t fscache_n_attr_changed_nobufs; --atomic_t fscache_n_attr_changed_nomem; --atomic_t fscache_n_attr_changed_calls; -+atomic_unchecked_t fscache_n_attr_changed; -+atomic_unchecked_t fscache_n_attr_changed_ok; -+atomic_unchecked_t fscache_n_attr_changed_nobufs; -+atomic_unchecked_t fscache_n_attr_changed_nomem; -+atomic_unchecked_t fscache_n_attr_changed_calls; - --atomic_t fscache_n_allocs; --atomic_t fscache_n_allocs_ok; --atomic_t fscache_n_allocs_wait; --atomic_t fscache_n_allocs_nobufs; --atomic_t fscache_n_allocs_intr; --atomic_t fscache_n_allocs_object_dead; --atomic_t fscache_n_alloc_ops; --atomic_t fscache_n_alloc_op_waits; -+atomic_unchecked_t fscache_n_allocs; -+atomic_unchecked_t fscache_n_allocs_ok; -+atomic_unchecked_t fscache_n_allocs_wait; -+atomic_unchecked_t fscache_n_allocs_nobufs; -+atomic_unchecked_t fscache_n_allocs_intr; -+atomic_unchecked_t fscache_n_allocs_object_dead; -+atomic_unchecked_t fscache_n_alloc_ops; -+atomic_unchecked_t fscache_n_alloc_op_waits; - --atomic_t fscache_n_retrievals; --atomic_t fscache_n_retrievals_ok; --atomic_t fscache_n_retrievals_wait; --atomic_t fscache_n_retrievals_nodata; --atomic_t fscache_n_retrievals_nobufs; --atomic_t fscache_n_retrievals_intr; --atomic_t fscache_n_retrievals_nomem; --atomic_t fscache_n_retrievals_object_dead; --atomic_t fscache_n_retrieval_ops; --atomic_t fscache_n_retrieval_op_waits; -+atomic_unchecked_t fscache_n_retrievals; -+atomic_unchecked_t fscache_n_retrievals_ok; -+atomic_unchecked_t fscache_n_retrievals_wait; -+atomic_unchecked_t fscache_n_retrievals_nodata; -+atomic_unchecked_t fscache_n_retrievals_nobufs; -+atomic_unchecked_t fscache_n_retrievals_intr; -+atomic_unchecked_t fscache_n_retrievals_nomem; -+atomic_unchecked_t fscache_n_retrievals_object_dead; -+atomic_unchecked_t fscache_n_retrieval_ops; -+atomic_unchecked_t fscache_n_retrieval_op_waits; - --atomic_t fscache_n_stores; --atomic_t fscache_n_stores_ok; --atomic_t fscache_n_stores_again; --atomic_t fscache_n_stores_nobufs; --atomic_t fscache_n_stores_oom; --atomic_t fscache_n_store_ops; --atomic_t fscache_n_store_calls; --atomic_t fscache_n_store_pages; --atomic_t fscache_n_store_radix_deletes; --atomic_t fscache_n_store_pages_over_limit; -+atomic_unchecked_t fscache_n_stores; -+atomic_unchecked_t fscache_n_stores_ok; -+atomic_unchecked_t fscache_n_stores_again; -+atomic_unchecked_t fscache_n_stores_nobufs; -+atomic_unchecked_t fscache_n_stores_oom; -+atomic_unchecked_t fscache_n_store_ops; -+atomic_unchecked_t fscache_n_store_calls; -+atomic_unchecked_t fscache_n_store_pages; -+atomic_unchecked_t fscache_n_store_radix_deletes; -+atomic_unchecked_t fscache_n_store_pages_over_limit; - --atomic_t fscache_n_store_vmscan_not_storing; --atomic_t fscache_n_store_vmscan_gone; --atomic_t fscache_n_store_vmscan_busy; --atomic_t fscache_n_store_vmscan_cancelled; -+atomic_unchecked_t fscache_n_store_vmscan_not_storing; -+atomic_unchecked_t fscache_n_store_vmscan_gone; -+atomic_unchecked_t fscache_n_store_vmscan_busy; -+atomic_unchecked_t fscache_n_store_vmscan_cancelled; - --atomic_t fscache_n_marks; --atomic_t fscache_n_uncaches; -+atomic_unchecked_t fscache_n_marks; -+atomic_unchecked_t fscache_n_uncaches; - --atomic_t fscache_n_acquires; --atomic_t fscache_n_acquires_null; --atomic_t fscache_n_acquires_no_cache; --atomic_t fscache_n_acquires_ok; --atomic_t fscache_n_acquires_nobufs; --atomic_t fscache_n_acquires_oom; -+atomic_unchecked_t fscache_n_acquires; -+atomic_unchecked_t fscache_n_acquires_null; -+atomic_unchecked_t fscache_n_acquires_no_cache; -+atomic_unchecked_t fscache_n_acquires_ok; -+atomic_unchecked_t fscache_n_acquires_nobufs; -+atomic_unchecked_t fscache_n_acquires_oom; - --atomic_t fscache_n_updates; --atomic_t fscache_n_updates_null; --atomic_t fscache_n_updates_run; -+atomic_unchecked_t fscache_n_updates; -+atomic_unchecked_t fscache_n_updates_null; -+atomic_unchecked_t fscache_n_updates_run; - --atomic_t fscache_n_relinquishes; --atomic_t fscache_n_relinquishes_null; --atomic_t fscache_n_relinquishes_waitcrt; --atomic_t fscache_n_relinquishes_retire; -+atomic_unchecked_t fscache_n_relinquishes; -+atomic_unchecked_t fscache_n_relinquishes_null; -+atomic_unchecked_t fscache_n_relinquishes_waitcrt; -+atomic_unchecked_t fscache_n_relinquishes_retire; - --atomic_t fscache_n_cookie_index; --atomic_t fscache_n_cookie_data; --atomic_t fscache_n_cookie_special; -+atomic_unchecked_t fscache_n_cookie_index; -+atomic_unchecked_t fscache_n_cookie_data; -+atomic_unchecked_t fscache_n_cookie_special; - --atomic_t fscache_n_object_alloc; --atomic_t fscache_n_object_no_alloc; --atomic_t fscache_n_object_lookups; --atomic_t fscache_n_object_lookups_negative; --atomic_t fscache_n_object_lookups_positive; --atomic_t fscache_n_object_lookups_timed_out; --atomic_t fscache_n_object_created; --atomic_t fscache_n_object_avail; --atomic_t fscache_n_object_dead; -+atomic_unchecked_t fscache_n_object_alloc; -+atomic_unchecked_t fscache_n_object_no_alloc; -+atomic_unchecked_t fscache_n_object_lookups; -+atomic_unchecked_t fscache_n_object_lookups_negative; -+atomic_unchecked_t fscache_n_object_lookups_positive; -+atomic_unchecked_t fscache_n_object_lookups_timed_out; -+atomic_unchecked_t fscache_n_object_created; -+atomic_unchecked_t fscache_n_object_avail; -+atomic_unchecked_t fscache_n_object_dead; - --atomic_t fscache_n_checkaux_none; --atomic_t fscache_n_checkaux_okay; --atomic_t fscache_n_checkaux_update; --atomic_t fscache_n_checkaux_obsolete; -+atomic_unchecked_t fscache_n_checkaux_none; -+atomic_unchecked_t fscache_n_checkaux_okay; -+atomic_unchecked_t fscache_n_checkaux_update; -+atomic_unchecked_t fscache_n_checkaux_obsolete; - - atomic_t fscache_n_cop_alloc_object; - atomic_t fscache_n_cop_lookup_object; -@@ -133,113 +133,113 @@ static int fscache_stats_show(struct seq_file *m, void *v) - seq_puts(m, "FS-Cache statistics\n"); - - seq_printf(m, "Cookies: idx=%u dat=%u spc=%u\n", -- atomic_read(&fscache_n_cookie_index), -- atomic_read(&fscache_n_cookie_data), -- atomic_read(&fscache_n_cookie_special)); -+ atomic_read_unchecked(&fscache_n_cookie_index), -+ atomic_read_unchecked(&fscache_n_cookie_data), -+ atomic_read_unchecked(&fscache_n_cookie_special)); - - seq_printf(m, "Objects: alc=%u nal=%u avl=%u ded=%u\n", -- atomic_read(&fscache_n_object_alloc), -- atomic_read(&fscache_n_object_no_alloc), -- atomic_read(&fscache_n_object_avail), -- atomic_read(&fscache_n_object_dead)); -+ atomic_read_unchecked(&fscache_n_object_alloc), -+ atomic_read_unchecked(&fscache_n_object_no_alloc), -+ atomic_read_unchecked(&fscache_n_object_avail), -+ atomic_read_unchecked(&fscache_n_object_dead)); - seq_printf(m, "ChkAux : non=%u ok=%u upd=%u obs=%u\n", -- atomic_read(&fscache_n_checkaux_none), -- atomic_read(&fscache_n_checkaux_okay), -- atomic_read(&fscache_n_checkaux_update), -- atomic_read(&fscache_n_checkaux_obsolete)); -+ atomic_read_unchecked(&fscache_n_checkaux_none), -+ atomic_read_unchecked(&fscache_n_checkaux_okay), -+ atomic_read_unchecked(&fscache_n_checkaux_update), -+ atomic_read_unchecked(&fscache_n_checkaux_obsolete)); - - seq_printf(m, "Pages : mrk=%u unc=%u\n", -- atomic_read(&fscache_n_marks), -- atomic_read(&fscache_n_uncaches)); -+ atomic_read_unchecked(&fscache_n_marks), -+ atomic_read_unchecked(&fscache_n_uncaches)); - - seq_printf(m, "Acquire: n=%u nul=%u noc=%u ok=%u nbf=%u" - " oom=%u\n", -- atomic_read(&fscache_n_acquires), -- atomic_read(&fscache_n_acquires_null), -- atomic_read(&fscache_n_acquires_no_cache), -- atomic_read(&fscache_n_acquires_ok), -- atomic_read(&fscache_n_acquires_nobufs), -- atomic_read(&fscache_n_acquires_oom)); -+ atomic_read_unchecked(&fscache_n_acquires), -+ atomic_read_unchecked(&fscache_n_acquires_null), -+ atomic_read_unchecked(&fscache_n_acquires_no_cache), -+ atomic_read_unchecked(&fscache_n_acquires_ok), -+ atomic_read_unchecked(&fscache_n_acquires_nobufs), -+ atomic_read_unchecked(&fscache_n_acquires_oom)); - - seq_printf(m, "Lookups: n=%u neg=%u pos=%u crt=%u tmo=%u\n", -- atomic_read(&fscache_n_object_lookups), -- atomic_read(&fscache_n_object_lookups_negative), -- atomic_read(&fscache_n_object_lookups_positive), -- atomic_read(&fscache_n_object_created), -- atomic_read(&fscache_n_object_lookups_timed_out)); -+ atomic_read_unchecked(&fscache_n_object_lookups), -+ atomic_read_unchecked(&fscache_n_object_lookups_negative), -+ atomic_read_unchecked(&fscache_n_object_lookups_positive), -+ atomic_read_unchecked(&fscache_n_object_created), -+ atomic_read_unchecked(&fscache_n_object_lookups_timed_out)); - - seq_printf(m, "Updates: n=%u nul=%u run=%u\n", -- atomic_read(&fscache_n_updates), -- atomic_read(&fscache_n_updates_null), -- atomic_read(&fscache_n_updates_run)); -+ atomic_read_unchecked(&fscache_n_updates), -+ atomic_read_unchecked(&fscache_n_updates_null), -+ atomic_read_unchecked(&fscache_n_updates_run)); - - seq_printf(m, "Relinqs: n=%u nul=%u wcr=%u rtr=%u\n", -- atomic_read(&fscache_n_relinquishes), -- atomic_read(&fscache_n_relinquishes_null), -- atomic_read(&fscache_n_relinquishes_waitcrt), -- atomic_read(&fscache_n_relinquishes_retire)); -+ atomic_read_unchecked(&fscache_n_relinquishes), -+ atomic_read_unchecked(&fscache_n_relinquishes_null), -+ atomic_read_unchecked(&fscache_n_relinquishes_waitcrt), -+ atomic_read_unchecked(&fscache_n_relinquishes_retire)); - - seq_printf(m, "AttrChg: n=%u ok=%u nbf=%u oom=%u run=%u\n", -- atomic_read(&fscache_n_attr_changed), -- atomic_read(&fscache_n_attr_changed_ok), -- atomic_read(&fscache_n_attr_changed_nobufs), -- atomic_read(&fscache_n_attr_changed_nomem), -- atomic_read(&fscache_n_attr_changed_calls)); -+ atomic_read_unchecked(&fscache_n_attr_changed), -+ atomic_read_unchecked(&fscache_n_attr_changed_ok), -+ atomic_read_unchecked(&fscache_n_attr_changed_nobufs), -+ atomic_read_unchecked(&fscache_n_attr_changed_nomem), -+ atomic_read_unchecked(&fscache_n_attr_changed_calls)); - - seq_printf(m, "Allocs : n=%u ok=%u wt=%u nbf=%u int=%u\n", -- atomic_read(&fscache_n_allocs), -- atomic_read(&fscache_n_allocs_ok), -- atomic_read(&fscache_n_allocs_wait), -- atomic_read(&fscache_n_allocs_nobufs), -- atomic_read(&fscache_n_allocs_intr)); -+ atomic_read_unchecked(&fscache_n_allocs), -+ atomic_read_unchecked(&fscache_n_allocs_ok), -+ atomic_read_unchecked(&fscache_n_allocs_wait), -+ atomic_read_unchecked(&fscache_n_allocs_nobufs), -+ atomic_read_unchecked(&fscache_n_allocs_intr)); - seq_printf(m, "Allocs : ops=%u owt=%u abt=%u\n", -- atomic_read(&fscache_n_alloc_ops), -- atomic_read(&fscache_n_alloc_op_waits), -- atomic_read(&fscache_n_allocs_object_dead)); -+ atomic_read_unchecked(&fscache_n_alloc_ops), -+ atomic_read_unchecked(&fscache_n_alloc_op_waits), -+ atomic_read_unchecked(&fscache_n_allocs_object_dead)); - - seq_printf(m, "Retrvls: n=%u ok=%u wt=%u nod=%u nbf=%u" - " int=%u oom=%u\n", -- atomic_read(&fscache_n_retrievals), -- atomic_read(&fscache_n_retrievals_ok), -- atomic_read(&fscache_n_retrievals_wait), -- atomic_read(&fscache_n_retrievals_nodata), -- atomic_read(&fscache_n_retrievals_nobufs), -- atomic_read(&fscache_n_retrievals_intr), -- atomic_read(&fscache_n_retrievals_nomem)); -+ atomic_read_unchecked(&fscache_n_retrievals), -+ atomic_read_unchecked(&fscache_n_retrievals_ok), -+ atomic_read_unchecked(&fscache_n_retrievals_wait), -+ atomic_read_unchecked(&fscache_n_retrievals_nodata), -+ atomic_read_unchecked(&fscache_n_retrievals_nobufs), -+ atomic_read_unchecked(&fscache_n_retrievals_intr), -+ atomic_read_unchecked(&fscache_n_retrievals_nomem)); - seq_printf(m, "Retrvls: ops=%u owt=%u abt=%u\n", -- atomic_read(&fscache_n_retrieval_ops), -- atomic_read(&fscache_n_retrieval_op_waits), -- atomic_read(&fscache_n_retrievals_object_dead)); -+ atomic_read_unchecked(&fscache_n_retrieval_ops), -+ atomic_read_unchecked(&fscache_n_retrieval_op_waits), -+ atomic_read_unchecked(&fscache_n_retrievals_object_dead)); - - seq_printf(m, "Stores : n=%u ok=%u agn=%u nbf=%u oom=%u\n", -- atomic_read(&fscache_n_stores), -- atomic_read(&fscache_n_stores_ok), -- atomic_read(&fscache_n_stores_again), -- atomic_read(&fscache_n_stores_nobufs), -- atomic_read(&fscache_n_stores_oom)); -+ atomic_read_unchecked(&fscache_n_stores), -+ atomic_read_unchecked(&fscache_n_stores_ok), -+ atomic_read_unchecked(&fscache_n_stores_again), -+ atomic_read_unchecked(&fscache_n_stores_nobufs), -+ atomic_read_unchecked(&fscache_n_stores_oom)); - seq_printf(m, "Stores : ops=%u run=%u pgs=%u rxd=%u olm=%u\n", -- atomic_read(&fscache_n_store_ops), -- atomic_read(&fscache_n_store_calls), -- atomic_read(&fscache_n_store_pages), -- atomic_read(&fscache_n_store_radix_deletes), -- atomic_read(&fscache_n_store_pages_over_limit)); -+ atomic_read_unchecked(&fscache_n_store_ops), -+ atomic_read_unchecked(&fscache_n_store_calls), -+ atomic_read_unchecked(&fscache_n_store_pages), -+ atomic_read_unchecked(&fscache_n_store_radix_deletes), -+ atomic_read_unchecked(&fscache_n_store_pages_over_limit)); - - seq_printf(m, "VmScan : nos=%u gon=%u bsy=%u can=%u\n", -- atomic_read(&fscache_n_store_vmscan_not_storing), -- atomic_read(&fscache_n_store_vmscan_gone), -- atomic_read(&fscache_n_store_vmscan_busy), -- atomic_read(&fscache_n_store_vmscan_cancelled)); -+ atomic_read_unchecked(&fscache_n_store_vmscan_not_storing), -+ atomic_read_unchecked(&fscache_n_store_vmscan_gone), -+ atomic_read_unchecked(&fscache_n_store_vmscan_busy), -+ atomic_read_unchecked(&fscache_n_store_vmscan_cancelled)); - - seq_printf(m, "Ops : pend=%u run=%u enq=%u can=%u rej=%u\n", -- atomic_read(&fscache_n_op_pend), -- atomic_read(&fscache_n_op_run), -- atomic_read(&fscache_n_op_enqueue), -- atomic_read(&fscache_n_op_cancelled), -- atomic_read(&fscache_n_op_rejected)); -+ atomic_read_unchecked(&fscache_n_op_pend), -+ atomic_read_unchecked(&fscache_n_op_run), -+ atomic_read_unchecked(&fscache_n_op_enqueue), -+ atomic_read_unchecked(&fscache_n_op_cancelled), -+ atomic_read_unchecked(&fscache_n_op_rejected)); - seq_printf(m, "Ops : dfr=%u rel=%u gc=%u\n", -- atomic_read(&fscache_n_op_deferred_release), -- atomic_read(&fscache_n_op_release), -- atomic_read(&fscache_n_op_gc)); -+ atomic_read_unchecked(&fscache_n_op_deferred_release), -+ atomic_read_unchecked(&fscache_n_op_release), -+ atomic_read_unchecked(&fscache_n_op_gc)); - - seq_printf(m, "CacheOp: alo=%d luo=%d luc=%d gro=%d\n", - atomic_read(&fscache_n_cop_alloc_object), -diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c -index 3426521..3b75162 100644 ---- a/fs/fuse/cuse.c -+++ b/fs/fuse/cuse.c -@@ -587,10 +587,12 @@ static int __init cuse_init(void) - INIT_LIST_HEAD(&cuse_conntbl[i]); - - /* inherit and extend fuse_dev_operations */ -- cuse_channel_fops = fuse_dev_operations; -- cuse_channel_fops.owner = THIS_MODULE; -- cuse_channel_fops.open = cuse_channel_open; -- cuse_channel_fops.release = cuse_channel_release; -+ pax_open_kernel(); -+ memcpy((void *)&cuse_channel_fops, &fuse_dev_operations, sizeof(fuse_dev_operations)); -+ *(void **)&cuse_channel_fops.owner = THIS_MODULE; -+ *(void **)&cuse_channel_fops.open = cuse_channel_open; -+ *(void **)&cuse_channel_fops.release = cuse_channel_release; -+ pax_close_kernel(); - - cuse_class = class_create(THIS_MODULE, "cuse"); - if (IS_ERR(cuse_class)) -diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c -index 7df2b5e..5804aa7 100644 ---- a/fs/fuse/dev.c -+++ b/fs/fuse/dev.c -@@ -1242,7 +1242,7 @@ static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos, - ret = 0; - pipe_lock(pipe); - -- if (!pipe->readers) { -+ if (!atomic_read(&pipe->readers)) { - send_sig(SIGPIPE, current, 0); - if (!ret) - ret = -EPIPE; -diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c -index bc43832..0cfe5a6 100644 ---- a/fs/fuse/dir.c -+++ b/fs/fuse/dir.c -@@ -1181,7 +1181,7 @@ static char *read_link(struct dentry *dentry) - return link; - } - --static void free_link(char *link) -+static void free_link(const char *link) - { - if (!IS_ERR(link)) - free_page((unsigned long) link); -diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c -index a9ba244..d9df391 100644 ---- a/fs/gfs2/inode.c -+++ b/fs/gfs2/inode.c -@@ -1496,7 +1496,7 @@ out: - - static void gfs2_put_link(struct dentry *dentry, struct nameidata *nd, void *p) - { -- char *s = nd_get_link(nd); -+ const char *s = nd_get_link(nd); - if (!IS_ERR(s)) - kfree(s); - } -diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c -index 001ef01..f7d5f07 100644 ---- a/fs/hugetlbfs/inode.c -+++ b/fs/hugetlbfs/inode.c -@@ -920,7 +920,7 @@ static struct file_system_type hugetlbfs_fs_type = { - .kill_sb = kill_litter_super, - }; - --static struct vfsmount *hugetlbfs_vfsmount; -+struct vfsmount *hugetlbfs_vfsmount; - - static int can_do_hugetlb_shm(void) - { -diff --git a/fs/inode.c b/fs/inode.c -index 9f4f5fe..6214688 100644 ---- a/fs/inode.c -+++ b/fs/inode.c -@@ -860,8 +860,8 @@ unsigned int get_next_ino(void) - - #ifdef CONFIG_SMP - if (unlikely((res & (LAST_INO_BATCH-1)) == 0)) { -- static atomic_t shared_last_ino; -- int next = atomic_add_return(LAST_INO_BATCH, &shared_last_ino); -+ static atomic_unchecked_t shared_last_ino; -+ int next = atomic_add_return_unchecked(LAST_INO_BATCH, &shared_last_ino); - - res = next - LAST_INO_BATCH; - } -diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c -index 4a6cf28..d3a29d3 100644 ---- a/fs/jffs2/erase.c -+++ b/fs/jffs2/erase.c -@@ -452,7 +452,8 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb - struct jffs2_unknown_node marker = { - .magic = cpu_to_je16(JFFS2_MAGIC_BITMASK), - .nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER), -- .totlen = cpu_to_je32(c->cleanmarker_size) -+ .totlen = cpu_to_je32(c->cleanmarker_size), -+ .hdr_crc = cpu_to_je32(0) - }; - - jffs2_prealloc_raw_node_refs(c, jeb, 1); -diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c -index 74d9be1..d5dd140 100644 ---- a/fs/jffs2/wbuf.c -+++ b/fs/jffs2/wbuf.c -@@ -1022,7 +1022,8 @@ static const struct jffs2_unknown_node oob_cleanmarker = - { - .magic = constant_cpu_to_je16(JFFS2_MAGIC_BITMASK), - .nodetype = constant_cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER), -- .totlen = constant_cpu_to_je32(8) -+ .totlen = constant_cpu_to_je32(8), -+ .hdr_crc = constant_cpu_to_je32(0) - }; - - /* -diff --git a/fs/jfs/super.c b/fs/jfs/super.c -index 4a82950..bcaa0cb 100644 ---- a/fs/jfs/super.c -+++ b/fs/jfs/super.c -@@ -801,7 +801,7 @@ static int __init init_jfs_fs(void) - - jfs_inode_cachep = - kmem_cache_create("jfs_ip", sizeof(struct jfs_inode_info), 0, -- SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD, -+ SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD|SLAB_USERCOPY, - init_once); - if (jfs_inode_cachep == NULL) - return -ENOMEM; -diff --git a/fs/libfs.c b/fs/libfs.c -index 18d08f5..fe3dc64 100644 ---- a/fs/libfs.c -+++ b/fs/libfs.c -@@ -165,6 +165,9 @@ int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir) - - for (p=q->next; p != &dentry->d_subdirs; p=p->next) { - struct dentry *next; -+ char d_name[sizeof(next->d_iname)]; -+ const unsigned char *name; -+ - next = list_entry(p, struct dentry, d_u.d_child); - spin_lock_nested(&next->d_lock, DENTRY_D_LOCK_NESTED); - if (!simple_positive(next)) { -@@ -174,7 +177,12 @@ int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir) - - spin_unlock(&next->d_lock); - spin_unlock(&dentry->d_lock); -- if (filldir(dirent, next->d_name.name, -+ name = next->d_name.name; -+ if (name == next->d_iname) { -+ memcpy(d_name, name, next->d_name.len); -+ name = d_name; -+ } -+ if (filldir(dirent, name, - next->d_name.len, filp->f_pos, - next->d_inode->i_ino, - dt_type(next->d_inode)) < 0) -diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c -index 8392cb8..80d6193 100644 ---- a/fs/lockd/clntproc.c -+++ b/fs/lockd/clntproc.c -@@ -36,11 +36,11 @@ static const struct rpc_call_ops nlmclnt_cancel_ops; - /* - * Cookie counter for NLM requests - */ --static atomic_t nlm_cookie = ATOMIC_INIT(0x1234); -+static atomic_unchecked_t nlm_cookie = ATOMIC_INIT(0x1234); - - void nlmclnt_next_cookie(struct nlm_cookie *c) - { -- u32 cookie = atomic_inc_return(&nlm_cookie); -+ u32 cookie = atomic_inc_return_unchecked(&nlm_cookie); - - memcpy(c->data, &cookie, 4); - c->len=4; -diff --git a/fs/locks.c b/fs/locks.c -index 0d68f1f..f216b79 100644 ---- a/fs/locks.c -+++ b/fs/locks.c -@@ -2075,16 +2075,16 @@ void locks_remove_flock(struct file *filp) - return; - - if (filp->f_op && filp->f_op->flock) { -- struct file_lock fl = { -+ struct file_lock flock = { - .fl_pid = current->tgid, - .fl_file = filp, - .fl_flags = FL_FLOCK, - .fl_type = F_UNLCK, - .fl_end = OFFSET_MAX, - }; -- filp->f_op->flock(filp, F_SETLKW, &fl); -- if (fl.fl_ops && fl.fl_ops->fl_release_private) -- fl.fl_ops->fl_release_private(&fl); -+ filp->f_op->flock(filp, F_SETLKW, &flock); -+ if (flock.fl_ops && flock.fl_ops->fl_release_private) -+ flock.fl_ops->fl_release_private(&flock); - } - - lock_flocks(); -diff --git a/fs/namei.c b/fs/namei.c -index c427919..e37fd3f 100644 ---- a/fs/namei.c -+++ b/fs/namei.c -@@ -278,16 +278,32 @@ int generic_permission(struct inode *inode, int mask) - if (ret != -EACCES) - return ret; - -+#ifdef CONFIG_GRKERNSEC -+ /* we'll block if we have to log due to a denied capability use */ -+ if (mask & MAY_NOT_BLOCK) -+ return -ECHILD; -+#endif -+ - if (S_ISDIR(inode->i_mode)) { - /* DACs are overridable for directories */ -- if (ns_capable(inode_userns(inode), CAP_DAC_OVERRIDE)) -- return 0; - if (!(mask & MAY_WRITE)) -- if (ns_capable(inode_userns(inode), CAP_DAC_READ_SEARCH)) -+ if (ns_capable_nolog(inode_userns(inode), CAP_DAC_OVERRIDE) || -+ ns_capable(inode_userns(inode), CAP_DAC_READ_SEARCH)) - return 0; -+ if (ns_capable(inode_userns(inode), CAP_DAC_OVERRIDE)) -+ return 0; - return -EACCES; - } - /* -+ * Searching includes executable on directories, else just read. -+ */ -+ mask &= MAY_READ | MAY_WRITE | MAY_EXEC; -+ if (mask == MAY_READ) -+ if (ns_capable_nolog(inode_userns(inode), CAP_DAC_OVERRIDE) || -+ ns_capable(inode_userns(inode), CAP_DAC_READ_SEARCH)) -+ return 0; -+ -+ /* - * Read/write DACs are always overridable. - * Executable DACs are overridable when there is - * at least one exec bit set. -@@ -296,14 +312,6 @@ int generic_permission(struct inode *inode, int mask) - if (ns_capable(inode_userns(inode), CAP_DAC_OVERRIDE)) - return 0; - -- /* -- * Searching includes executable on directories, else just read. -- */ -- mask &= MAY_READ | MAY_WRITE | MAY_EXEC; -- if (mask == MAY_READ) -- if (ns_capable(inode_userns(inode), CAP_DAC_READ_SEARCH)) -- return 0; -- - return -EACCES; - } - -@@ -652,11 +660,19 @@ follow_link(struct path *link, struct nameidata *nd, void **p) - return error; - } - -+ if (gr_handle_follow_link(dentry->d_parent->d_inode, -+ dentry->d_inode, dentry, nd->path.mnt)) { -+ error = -EACCES; -+ *p = ERR_PTR(error); /* no ->put_link(), please */ -+ path_put(&nd->path); -+ return error; -+ } -+ - nd->last_type = LAST_BIND; - *p = dentry->d_inode->i_op->follow_link(dentry, nd); - error = PTR_ERR(*p); - if (!IS_ERR(*p)) { -- char *s = nd_get_link(nd); -+ const char *s = nd_get_link(nd); - error = 0; - if (s) - error = __vfs_follow_link(nd, s); -@@ -1753,6 +1769,21 @@ static int path_lookupat(int dfd, const char *name, - if (!err) - err = complete_walk(nd); - -+ if (!(nd->flags & LOOKUP_PARENT)) { -+#ifdef CONFIG_GRKERNSEC -+ if (flags & LOOKUP_RCU) { -+ if (!err) -+ path_put(&nd->path); -+ err = -ECHILD; -+ } else -+#endif -+ if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) { -+ if (!err) -+ path_put(&nd->path); -+ err = -ENOENT; -+ } -+ } -+ - if (!err && nd->flags & LOOKUP_DIRECTORY) { - if (!nd->inode->i_op->lookup) { - path_put(&nd->path); -@@ -1780,6 +1811,15 @@ static int do_path_lookup(int dfd, const char *name, - retval = path_lookupat(dfd, name, flags | LOOKUP_REVAL, nd); - - if (likely(!retval)) { -+ if (*name != '/' && nd->path.dentry && nd->inode) { -+#ifdef CONFIG_GRKERNSEC -+ if (flags & LOOKUP_RCU) -+ return -ECHILD; -+#endif -+ if (!gr_chroot_fchdir(nd->path.dentry, nd->path.mnt)) -+ return -ENOENT; -+ } -+ - if (unlikely(!audit_dummy_context())) { - if (nd->path.dentry && nd->inode) - audit_inode(name, nd->path.dentry); -@@ -2126,6 +2166,13 @@ static int may_open(struct path *path, int acc_mode, int flag) - if (flag & O_NOATIME && !inode_owner_or_capable(inode)) - return -EPERM; - -+ if (gr_handle_rofs_blockwrite(dentry, path->mnt, acc_mode)) -+ return -EPERM; -+ if (gr_handle_rawio(inode)) -+ return -EPERM; -+ if (!gr_acl_handle_open(dentry, path->mnt, acc_mode)) -+ return -EACCES; -+ - return 0; - } - -@@ -2187,6 +2234,16 @@ static struct file *do_last(struct nameidata *nd, struct path *path, - error = complete_walk(nd); - if (error) - return ERR_PTR(error); -+#ifdef CONFIG_GRKERNSEC -+ if (nd->flags & LOOKUP_RCU) { -+ error = -ECHILD; -+ goto exit; -+ } -+#endif -+ if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) { -+ error = -ENOENT; -+ goto exit; -+ } - audit_inode(pathname, nd->path.dentry); - if (open_flag & O_CREAT) { - error = -EISDIR; -@@ -2197,6 +2254,16 @@ static struct file *do_last(struct nameidata *nd, struct path *path, - error = complete_walk(nd); - if (error) - return ERR_PTR(error); -+#ifdef CONFIG_GRKERNSEC -+ if (nd->flags & LOOKUP_RCU) { -+ error = -ECHILD; -+ goto exit; -+ } -+#endif -+ if (!gr_acl_handle_hidden_file(dir, nd->path.mnt)) { -+ error = -ENOENT; -+ goto exit; -+ } - audit_inode(pathname, dir); - goto ok; - } -@@ -2218,6 +2285,16 @@ static struct file *do_last(struct nameidata *nd, struct path *path, - error = complete_walk(nd); - if (error) - return ERR_PTR(error); -+#ifdef CONFIG_GRKERNSEC -+ if (nd->flags & LOOKUP_RCU) { -+ error = -ECHILD; -+ goto exit; -+ } -+#endif -+ if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) { -+ error = -ENOENT; -+ goto exit; -+ } - - error = -ENOTDIR; - if (nd->flags & LOOKUP_DIRECTORY) { -@@ -2258,6 +2335,12 @@ static struct file *do_last(struct nameidata *nd, struct path *path, - /* Negative dentry, just create the file */ - if (!dentry->d_inode) { - umode_t mode = op->mode; -+ -+ if (!gr_acl_handle_creat(path->dentry, nd->path.dentry, path->mnt, open_flag, acc_mode, mode)) { -+ error = -EACCES; -+ goto exit_mutex_unlock; -+ } -+ - if (!IS_POSIXACL(dir->d_inode)) - mode &= ~current_umask(); - /* -@@ -2281,6 +2364,8 @@ static struct file *do_last(struct nameidata *nd, struct path *path, - error = vfs_create(dir->d_inode, dentry, mode, nd); - if (error) - goto exit_mutex_unlock; -+ else -+ gr_handle_create(path->dentry, path->mnt); - mutex_unlock(&dir->d_inode->i_mutex); - dput(nd->path.dentry); - nd->path.dentry = dentry; -@@ -2290,6 +2375,19 @@ static struct file *do_last(struct nameidata *nd, struct path *path, - /* - * It already exists. - */ -+ -+ if (!gr_acl_handle_hidden_file(dentry, nd->path.mnt)) { -+ error = -ENOENT; -+ goto exit_mutex_unlock; -+ } -+ -+ /* only check if O_CREAT is specified, all other checks need to go -+ into may_open */ -+ if (gr_handle_fifo(path->dentry, path->mnt, dir, open_flag, acc_mode)) { -+ error = -EACCES; -+ goto exit_mutex_unlock; -+ } -+ - mutex_unlock(&dir->d_inode->i_mutex); - audit_inode(pathname, path->dentry); - -@@ -2502,6 +2600,11 @@ struct dentry *kern_path_create(int dfd, const char *pathname, struct path *path - *path = nd.path; - return dentry; - eexist: -+ if (!gr_acl_handle_hidden_file(dentry, nd.path.mnt)) { -+ dput(dentry); -+ dentry = ERR_PTR(-ENOENT); -+ goto fail; -+ } - dput(dentry); - dentry = ERR_PTR(-EEXIST); - fail: -@@ -2524,6 +2627,20 @@ struct dentry *user_path_create(int dfd, const char __user *pathname, struct pat - } - EXPORT_SYMBOL(user_path_create); - -+static struct dentry *user_path_create_with_name(int dfd, const char __user *pathname, struct path *path, char **to, int is_dir) -+{ -+ char *tmp = getname(pathname); -+ struct dentry *res; -+ if (IS_ERR(tmp)) -+ return ERR_CAST(tmp); -+ res = kern_path_create(dfd, tmp, path, is_dir); -+ if (IS_ERR(res)) -+ putname(tmp); -+ else -+ *to = tmp; -+ return res; -+} -+ - int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev) - { - int error = may_create(dir, dentry); -@@ -2591,6 +2708,17 @@ SYSCALL_DEFINE4(mknodat, int, dfd, const char __user *, filename, umode_t, mode, - error = mnt_want_write(path.mnt); - if (error) - goto out_dput; -+ -+ if (gr_handle_chroot_mknod(dentry, path.mnt, mode)) { -+ error = -EPERM; -+ goto out_drop_write; -+ } -+ -+ if (!gr_acl_handle_mknod(dentry, path.dentry, path.mnt, mode)) { -+ error = -EACCES; -+ goto out_drop_write; -+ } -+ - error = security_path_mknod(&path, dentry, mode, dev); - if (error) - goto out_drop_write; -@@ -2608,6 +2736,9 @@ SYSCALL_DEFINE4(mknodat, int, dfd, const char __user *, filename, umode_t, mode, - } - out_drop_write: - mnt_drop_write(path.mnt); -+ -+ if (!error) -+ gr_handle_create(dentry, path.mnt); - out_dput: - dput(dentry); - mutex_unlock(&path.dentry->d_inode->i_mutex); -@@ -2661,12 +2792,21 @@ SYSCALL_DEFINE3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode) - error = mnt_want_write(path.mnt); - if (error) - goto out_dput; -+ -+ if (!gr_acl_handle_mkdir(dentry, path.dentry, path.mnt)) { -+ error = -EACCES; -+ goto out_drop_write; -+ } -+ - error = security_path_mkdir(&path, dentry, mode); - if (error) - goto out_drop_write; - error = vfs_mkdir(path.dentry->d_inode, dentry, mode); - out_drop_write: - mnt_drop_write(path.mnt); -+ -+ if (!error) -+ gr_handle_create(dentry, path.mnt); - out_dput: - dput(dentry); - mutex_unlock(&path.dentry->d_inode->i_mutex); -@@ -2746,6 +2886,8 @@ static long do_rmdir(int dfd, const char __user *pathname) - char * name; - struct dentry *dentry; - struct nameidata nd; -+ ino_t saved_ino = 0; -+ dev_t saved_dev = 0; - - error = user_path_parent(dfd, pathname, &nd, &name); - if (error) -@@ -2774,6 +2916,15 @@ static long do_rmdir(int dfd, const char __user *pathname) - error = -ENOENT; - goto exit3; - } -+ -+ saved_ino = dentry->d_inode->i_ino; -+ saved_dev = gr_get_dev_from_dentry(dentry); -+ -+ if (!gr_acl_handle_rmdir(dentry, nd.path.mnt)) { -+ error = -EACCES; -+ goto exit3; -+ } -+ - error = mnt_want_write(nd.path.mnt); - if (error) - goto exit3; -@@ -2781,6 +2932,8 @@ static long do_rmdir(int dfd, const char __user *pathname) - if (error) - goto exit4; - error = vfs_rmdir(nd.path.dentry->d_inode, dentry); -+ if (!error && (saved_dev || saved_ino)) -+ gr_handle_delete(saved_ino, saved_dev); - exit4: - mnt_drop_write(nd.path.mnt); - exit3: -@@ -2843,6 +2996,8 @@ static long do_unlinkat(int dfd, const char __user *pathname) - struct dentry *dentry; - struct nameidata nd; - struct inode *inode = NULL; -+ ino_t saved_ino = 0; -+ dev_t saved_dev = 0; - - error = user_path_parent(dfd, pathname, &nd, &name); - if (error) -@@ -2865,6 +3020,16 @@ static long do_unlinkat(int dfd, const char __user *pathname) - if (!inode) - goto slashes; - ihold(inode); -+ -+ if (inode->i_nlink <= 1) { -+ saved_ino = inode->i_ino; -+ saved_dev = gr_get_dev_from_dentry(dentry); -+ } -+ if (!gr_acl_handle_unlink(dentry, nd.path.mnt)) { -+ error = -EACCES; -+ goto exit2; -+ } -+ - error = mnt_want_write(nd.path.mnt); - if (error) - goto exit2; -@@ -2872,6 +3037,8 @@ static long do_unlinkat(int dfd, const char __user *pathname) - if (error) - goto exit3; - error = vfs_unlink(nd.path.dentry->d_inode, dentry); -+ if (!error && (saved_ino || saved_dev)) -+ gr_handle_delete(saved_ino, saved_dev); - exit3: - mnt_drop_write(nd.path.mnt); - exit2: -@@ -2947,10 +3114,18 @@ SYSCALL_DEFINE3(symlinkat, const char __user *, oldname, - error = mnt_want_write(path.mnt); - if (error) - goto out_dput; -+ -+ if (!gr_acl_handle_symlink(dentry, path.dentry, path.mnt, from)) { -+ error = -EACCES; -+ goto out_drop_write; -+ } -+ - error = security_path_symlink(&path, dentry, from); - if (error) - goto out_drop_write; - error = vfs_symlink(path.dentry->d_inode, dentry, from); -+ if (!error) -+ gr_handle_create(dentry, path.mnt); - out_drop_write: - mnt_drop_write(path.mnt); - out_dput: -@@ -3025,6 +3200,7 @@ SYSCALL_DEFINE5(linkat, int, olddfd, const char __user *, oldname, - { - struct dentry *new_dentry; - struct path old_path, new_path; -+ char *to = NULL; - int how = 0; - int error; - -@@ -3048,7 +3224,7 @@ SYSCALL_DEFINE5(linkat, int, olddfd, const char __user *, oldname, - if (error) - return error; - -- new_dentry = user_path_create(newdfd, newname, &new_path, 0); -+ new_dentry = user_path_create_with_name(newdfd, newname, &new_path, &to, 0); - error = PTR_ERR(new_dentry); - if (IS_ERR(new_dentry)) - goto out; -@@ -3059,13 +3235,30 @@ SYSCALL_DEFINE5(linkat, int, olddfd, const char __user *, oldname, - error = mnt_want_write(new_path.mnt); - if (error) - goto out_dput; -+ -+ if (gr_handle_hardlink(old_path.dentry, old_path.mnt, -+ old_path.dentry->d_inode, -+ old_path.dentry->d_inode->i_mode, to)) { -+ error = -EACCES; -+ goto out_drop_write; -+ } -+ -+ if (!gr_acl_handle_link(new_dentry, new_path.dentry, new_path.mnt, -+ old_path.dentry, old_path.mnt, to)) { -+ error = -EACCES; -+ goto out_drop_write; -+ } -+ - error = security_path_link(old_path.dentry, &new_path, new_dentry); - if (error) - goto out_drop_write; - error = vfs_link(old_path.dentry, new_path.dentry->d_inode, new_dentry); -+ if (!error) -+ gr_handle_create(new_dentry, new_path.mnt); - out_drop_write: - mnt_drop_write(new_path.mnt); - out_dput: -+ putname(to); - dput(new_dentry); - mutex_unlock(&new_path.dentry->d_inode->i_mutex); - path_put(&new_path); -@@ -3299,6 +3492,12 @@ SYSCALL_DEFINE4(renameat, int, olddfd, const char __user *, oldname, - if (new_dentry == trap) - goto exit5; - -+ error = gr_acl_handle_rename(new_dentry, new_dir, newnd.path.mnt, -+ old_dentry, old_dir->d_inode, oldnd.path.mnt, -+ to); -+ if (error) -+ goto exit5; -+ - error = mnt_want_write(oldnd.path.mnt); - if (error) - goto exit5; -@@ -3308,6 +3507,9 @@ SYSCALL_DEFINE4(renameat, int, olddfd, const char __user *, oldname, - goto exit6; - error = vfs_rename(old_dir->d_inode, old_dentry, - new_dir->d_inode, new_dentry); -+ if (!error) -+ gr_handle_rename(old_dir->d_inode, new_dir->d_inode, old_dentry, -+ new_dentry, oldnd.path.mnt, new_dentry->d_inode ? 1 : 0); - exit6: - mnt_drop_write(oldnd.path.mnt); - exit5: -@@ -3333,6 +3535,8 @@ SYSCALL_DEFINE2(rename, const char __user *, oldname, const char __user *, newna - - int vfs_readlink(struct dentry *dentry, char __user *buffer, int buflen, const char *link) - { -+ char tmpbuf[64]; -+ const char *newlink; - int len; - - len = PTR_ERR(link); -@@ -3342,7 +3546,14 @@ int vfs_readlink(struct dentry *dentry, char __user *buffer, int buflen, const c - len = strlen(link); - if (len > (unsigned) buflen) - len = buflen; -- if (copy_to_user(buffer, link, len)) -+ -+ if (len < sizeof(tmpbuf)) { -+ memcpy(tmpbuf, link, len); -+ newlink = tmpbuf; -+ } else -+ newlink = link; -+ -+ if (copy_to_user(buffer, newlink, len)) - len = -EFAULT; - out: - return len; -diff --git a/fs/namespace.c b/fs/namespace.c -index 4e46539..b28253c 100644 ---- a/fs/namespace.c -+++ b/fs/namespace.c -@@ -1156,6 +1156,9 @@ static int do_umount(struct mount *mnt, int flags) - if (!(sb->s_flags & MS_RDONLY)) - retval = do_remount_sb(sb, MS_RDONLY, NULL, 0); - up_write(&sb->s_umount); -+ -+ gr_log_remount(mnt->mnt_devname, retval); -+ - return retval; - } - -@@ -1175,6 +1178,9 @@ static int do_umount(struct mount *mnt, int flags) - br_write_unlock(vfsmount_lock); - up_write(&namespace_sem); - release_mounts(&umount_list); -+ -+ gr_log_unmount(mnt->mnt_devname, retval); -+ - return retval; - } - -@@ -2176,6 +2182,16 @@ long do_mount(char *dev_name, char *dir_name, char *type_page, - MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT | - MS_STRICTATIME); - -+ if (gr_handle_rofs_mount(path.dentry, path.mnt, mnt_flags)) { -+ retval = -EPERM; -+ goto dput_out; -+ } -+ -+ if (gr_handle_chroot_mount(path.dentry, path.mnt, dev_name)) { -+ retval = -EPERM; -+ goto dput_out; -+ } -+ - if (flags & MS_REMOUNT) - retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags, - data_page); -@@ -2190,6 +2206,9 @@ long do_mount(char *dev_name, char *dir_name, char *type_page, - dev_name, data_page); - dput_out: - path_put(&path); -+ -+ gr_log_mount(dev_name, dir_name, retval); -+ - return retval; - } - -@@ -2471,6 +2490,11 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root, - if (error) - goto out2; - -+ if (gr_handle_chroot_pivot()) { -+ error = -EPERM; -+ goto out2; -+ } -+ - get_fs_root(current->fs, &root); - error = lock_mount(&old); - if (error) -diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c -index e8bbfa5..864f936 100644 ---- a/fs/nfs/inode.c -+++ b/fs/nfs/inode.c -@@ -152,7 +152,7 @@ static void nfs_zap_caches_locked(struct inode *inode) - nfsi->attrtimeo = NFS_MINATTRTIMEO(inode); - nfsi->attrtimeo_timestamp = jiffies; - -- memset(NFS_COOKIEVERF(inode), 0, sizeof(NFS_COOKIEVERF(inode))); -+ memset(NFS_COOKIEVERF(inode), 0, sizeof(NFS_I(inode)->cookieverf)); - if (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)) - nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL|NFS_INO_REVAL_PAGECACHE; - else -@@ -1005,16 +1005,16 @@ static int nfs_size_need_update(const struct inode *inode, const struct nfs_fatt - return nfs_size_to_loff_t(fattr->size) > i_size_read(inode); - } - --static atomic_long_t nfs_attr_generation_counter; -+static atomic_long_unchecked_t nfs_attr_generation_counter; - - static unsigned long nfs_read_attr_generation_counter(void) - { -- return atomic_long_read(&nfs_attr_generation_counter); -+ return atomic_long_read_unchecked(&nfs_attr_generation_counter); - } - - unsigned long nfs_inc_attr_generation_counter(void) - { -- return atomic_long_inc_return(&nfs_attr_generation_counter); -+ return atomic_long_inc_return_unchecked(&nfs_attr_generation_counter); - } - - void nfs_fattr_init(struct nfs_fattr *fattr) -diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c -index 5686661..80a9a3a 100644 ---- a/fs/nfsd/vfs.c -+++ b/fs/nfsd/vfs.c -@@ -933,7 +933,7 @@ nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file, - } else { - oldfs = get_fs(); - set_fs(KERNEL_DS); -- host_err = vfs_readv(file, (struct iovec __user *)vec, vlen, &offset); -+ host_err = vfs_readv(file, (struct iovec __force_user *)vec, vlen, &offset); - set_fs(oldfs); - } - -@@ -1037,7 +1037,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file, - - /* Write the data. */ - oldfs = get_fs(); set_fs(KERNEL_DS); -- host_err = vfs_writev(file, (struct iovec __user *)vec, vlen, &offset); -+ host_err = vfs_writev(file, (struct iovec __force_user *)vec, vlen, &offset); - set_fs(oldfs); - if (host_err < 0) - goto out_nfserr; -@@ -1573,7 +1573,7 @@ nfsd_readlink(struct svc_rqst *rqstp, struct svc_fh *fhp, char *buf, int *lenp) - */ - - oldfs = get_fs(); set_fs(KERNEL_DS); -- host_err = inode->i_op->readlink(path.dentry, buf, *lenp); -+ host_err = inode->i_op->readlink(path.dentry, (char __force_user *)buf, *lenp); - set_fs(oldfs); - - if (host_err < 0) -diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c -index 3568c8a..e0240d8 100644 ---- a/fs/notify/fanotify/fanotify_user.c -+++ b/fs/notify/fanotify/fanotify_user.c -@@ -278,7 +278,8 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group, - goto out_close_fd; - - ret = -EFAULT; -- if (copy_to_user(buf, &fanotify_event_metadata, -+ if (fanotify_event_metadata.event_len > sizeof fanotify_event_metadata || -+ copy_to_user(buf, &fanotify_event_metadata, - fanotify_event_metadata.event_len)) - goto out_kill_access_response; - -diff --git a/fs/notify/notification.c b/fs/notify/notification.c -index c887b13..0fdf472 100644 ---- a/fs/notify/notification.c -+++ b/fs/notify/notification.c -@@ -57,7 +57,7 @@ static struct kmem_cache *fsnotify_event_holder_cachep; - * get set to 0 so it will never get 'freed' - */ - static struct fsnotify_event *q_overflow_event; --static atomic_t fsnotify_sync_cookie = ATOMIC_INIT(0); -+static atomic_unchecked_t fsnotify_sync_cookie = ATOMIC_INIT(0); - - /** - * fsnotify_get_cookie - return a unique cookie for use in synchronizing events. -@@ -65,7 +65,7 @@ static atomic_t fsnotify_sync_cookie = ATOMIC_INIT(0); - */ - u32 fsnotify_get_cookie(void) - { -- return atomic_inc_return(&fsnotify_sync_cookie); -+ return atomic_inc_return_unchecked(&fsnotify_sync_cookie); - } - EXPORT_SYMBOL_GPL(fsnotify_get_cookie); - -diff --git a/fs/ntfs/dir.c b/fs/ntfs/dir.c -index 99e3610..02c1068 100644 ---- a/fs/ntfs/dir.c -+++ b/fs/ntfs/dir.c -@@ -1329,7 +1329,7 @@ find_next_index_buffer: - ia = (INDEX_ALLOCATION*)(kaddr + (ia_pos & ~PAGE_CACHE_MASK & - ~(s64)(ndir->itype.index.block_size - 1))); - /* Bounds checks. */ -- if (unlikely((u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE)) { -+ if (unlikely(!kaddr || (u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE)) { - ntfs_error(sb, "Out of bounds check failed. Corrupt directory " - "inode 0x%lx or driver bug.", vdir->i_ino); - goto err_out; -diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c -index 8639169..76697aa 100644 ---- a/fs/ntfs/file.c -+++ b/fs/ntfs/file.c -@@ -2229,6 +2229,6 @@ const struct inode_operations ntfs_file_inode_ops = { - #endif /* NTFS_RW */ - }; - --const struct file_operations ntfs_empty_file_ops = {}; -+const struct file_operations ntfs_empty_file_ops __read_only; - --const struct inode_operations ntfs_empty_inode_ops = {}; -+const struct inode_operations ntfs_empty_inode_ops __read_only; -diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c -index 210c352..a174f83 100644 ---- a/fs/ocfs2/localalloc.c -+++ b/fs/ocfs2/localalloc.c -@@ -1283,7 +1283,7 @@ static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb, - goto bail; - } - -- atomic_inc(&osb->alloc_stats.moves); -+ atomic_inc_unchecked(&osb->alloc_stats.moves); - - bail: - if (handle) -diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h -index d355e6e..578d905 100644 ---- a/fs/ocfs2/ocfs2.h -+++ b/fs/ocfs2/ocfs2.h -@@ -235,11 +235,11 @@ enum ocfs2_vol_state - - struct ocfs2_alloc_stats - { -- atomic_t moves; -- atomic_t local_data; -- atomic_t bitmap_data; -- atomic_t bg_allocs; -- atomic_t bg_extends; -+ atomic_unchecked_t moves; -+ atomic_unchecked_t local_data; -+ atomic_unchecked_t bitmap_data; -+ atomic_unchecked_t bg_allocs; -+ atomic_unchecked_t bg_extends; - }; - - enum ocfs2_local_alloc_state -diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c -index f169da4..9112253 100644 ---- a/fs/ocfs2/suballoc.c -+++ b/fs/ocfs2/suballoc.c -@@ -872,7 +872,7 @@ static int ocfs2_reserve_suballoc_bits(struct ocfs2_super *osb, - mlog_errno(status); - goto bail; - } -- atomic_inc(&osb->alloc_stats.bg_extends); -+ atomic_inc_unchecked(&osb->alloc_stats.bg_extends); - - /* You should never ask for this much metadata */ - BUG_ON(bits_wanted > -@@ -2008,7 +2008,7 @@ int ocfs2_claim_metadata(handle_t *handle, - mlog_errno(status); - goto bail; - } -- atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs); -+ atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs); - - *suballoc_loc = res.sr_bg_blkno; - *suballoc_bit_start = res.sr_bit_offset; -@@ -2172,7 +2172,7 @@ int ocfs2_claim_new_inode_at_loc(handle_t *handle, - trace_ocfs2_claim_new_inode_at_loc((unsigned long long)di_blkno, - res->sr_bits); - -- atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs); -+ atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs); - - BUG_ON(res->sr_bits != 1); - -@@ -2214,7 +2214,7 @@ int ocfs2_claim_new_inode(handle_t *handle, - mlog_errno(status); - goto bail; - } -- atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs); -+ atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs); - - BUG_ON(res.sr_bits != 1); - -@@ -2318,7 +2318,7 @@ int __ocfs2_claim_clusters(handle_t *handle, - cluster_start, - num_clusters); - if (!status) -- atomic_inc(&osb->alloc_stats.local_data); -+ atomic_inc_unchecked(&osb->alloc_stats.local_data); - } else { - if (min_clusters > (osb->bitmap_cpg - 1)) { - /* The only paths asking for contiguousness -@@ -2344,7 +2344,7 @@ int __ocfs2_claim_clusters(handle_t *handle, - ocfs2_desc_bitmap_to_cluster_off(ac->ac_inode, - res.sr_bg_blkno, - res.sr_bit_offset); -- atomic_inc(&osb->alloc_stats.bitmap_data); -+ atomic_inc_unchecked(&osb->alloc_stats.bitmap_data); - *num_clusters = res.sr_bits; - } - } -diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c -index 68f4541..89cfe6a 100644 ---- a/fs/ocfs2/super.c -+++ b/fs/ocfs2/super.c -@@ -301,11 +301,11 @@ static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len) - "%10s => GlobalAllocs: %d LocalAllocs: %d " - "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n", - "Stats", -- atomic_read(&osb->alloc_stats.bitmap_data), -- atomic_read(&osb->alloc_stats.local_data), -- atomic_read(&osb->alloc_stats.bg_allocs), -- atomic_read(&osb->alloc_stats.moves), -- atomic_read(&osb->alloc_stats.bg_extends)); -+ atomic_read_unchecked(&osb->alloc_stats.bitmap_data), -+ atomic_read_unchecked(&osb->alloc_stats.local_data), -+ atomic_read_unchecked(&osb->alloc_stats.bg_allocs), -+ atomic_read_unchecked(&osb->alloc_stats.moves), -+ atomic_read_unchecked(&osb->alloc_stats.bg_extends)); - - out += snprintf(buf + out, len - out, - "%10s => State: %u Descriptor: %llu Size: %u bits " -@@ -2116,11 +2116,11 @@ static int ocfs2_initialize_super(struct super_block *sb, - spin_lock_init(&osb->osb_xattr_lock); - ocfs2_init_steal_slots(osb); - -- atomic_set(&osb->alloc_stats.moves, 0); -- atomic_set(&osb->alloc_stats.local_data, 0); -- atomic_set(&osb->alloc_stats.bitmap_data, 0); -- atomic_set(&osb->alloc_stats.bg_allocs, 0); -- atomic_set(&osb->alloc_stats.bg_extends, 0); -+ atomic_set_unchecked(&osb->alloc_stats.moves, 0); -+ atomic_set_unchecked(&osb->alloc_stats.local_data, 0); -+ atomic_set_unchecked(&osb->alloc_stats.bitmap_data, 0); -+ atomic_set_unchecked(&osb->alloc_stats.bg_allocs, 0); -+ atomic_set_unchecked(&osb->alloc_stats.bg_extends, 0); - - /* Copy the blockcheck stats from the superblock probe */ - osb->osb_ecc_stats = *stats; -diff --git a/fs/ocfs2/symlink.c b/fs/ocfs2/symlink.c -index 5d22872..523db20 100644 ---- a/fs/ocfs2/symlink.c -+++ b/fs/ocfs2/symlink.c -@@ -142,7 +142,7 @@ bail: - - static void ocfs2_fast_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie) - { -- char *link = nd_get_link(nd); -+ const char *link = nd_get_link(nd); - if (!IS_ERR(link)) - kfree(link); - } -diff --git a/fs/open.c b/fs/open.c -index 5720854..ccfe124 100644 ---- a/fs/open.c -+++ b/fs/open.c -@@ -31,6 +31,8 @@ - #include <linux/ima.h> - #include <linux/dnotify.h> - -+#define CREATE_TRACE_POINTS -+#include <trace/events/fs.h> - #include "internal.h" - - int do_truncate(struct dentry *dentry, loff_t length, unsigned int time_attrs, -@@ -112,6 +114,10 @@ static long do_sys_truncate(const char __user *pathname, loff_t length) - error = locks_verify_truncate(inode, NULL, length); - if (!error) - error = security_path_truncate(&path); -+ -+ if (!error && !gr_acl_handle_truncate(path.dentry, path.mnt)) -+ error = -EACCES; -+ - if (!error) - error = do_truncate(path.dentry, length, 0, NULL); - -@@ -358,6 +364,9 @@ SYSCALL_DEFINE3(faccessat, int, dfd, const char __user *, filename, int, mode) - if (__mnt_is_readonly(path.mnt)) - res = -EROFS; - -+ if (!res && !gr_acl_handle_access(path.dentry, path.mnt, mode)) -+ res = -EACCES; -+ - out_path_release: - path_put(&path); - out: -@@ -384,6 +393,8 @@ SYSCALL_DEFINE1(chdir, const char __user *, filename) - if (error) - goto dput_and_out; - -+ gr_log_chdir(path.dentry, path.mnt); -+ - set_fs_pwd(current->fs, &path); - - dput_and_out: -@@ -410,6 +421,13 @@ SYSCALL_DEFINE1(fchdir, unsigned int, fd) - goto out_putf; - - error = inode_permission(inode, MAY_EXEC | MAY_CHDIR); -+ -+ if (!error && !gr_chroot_fchdir(file->f_path.dentry, file->f_path.mnt)) -+ error = -EPERM; -+ -+ if (!error) -+ gr_log_chdir(file->f_path.dentry, file->f_path.mnt); -+ - if (!error) - set_fs_pwd(current->fs, &file->f_path); - out_putf: -@@ -438,7 +456,13 @@ SYSCALL_DEFINE1(chroot, const char __user *, filename) - if (error) - goto dput_and_out; - -+ if (gr_handle_chroot_chroot(path.dentry, path.mnt)) -+ goto dput_and_out; -+ - set_fs_root(current->fs, &path); -+ -+ gr_handle_chroot_chdir(&path); -+ - error = 0; - dput_and_out: - path_put(&path); -@@ -456,6 +480,16 @@ static int chmod_common(struct path *path, umode_t mode) - if (error) - return error; - mutex_lock(&inode->i_mutex); -+ -+ if (!gr_acl_handle_chmod(path->dentry, path->mnt, &mode)) { -+ error = -EACCES; -+ goto out_unlock; -+ } -+ if (gr_handle_chroot_chmod(path->dentry, path->mnt, mode)) { -+ error = -EACCES; -+ goto out_unlock; -+ } -+ - error = security_path_chmod(path, mode); - if (error) - goto out_unlock; -@@ -506,6 +540,9 @@ static int chown_common(struct path *path, uid_t user, gid_t group) - int error; - struct iattr newattrs; - -+ if (!gr_acl_handle_chown(path->dentry, path->mnt)) -+ return -EACCES; -+ - newattrs.ia_valid = ATTR_CTIME; - if (user != (uid_t) -1) { - newattrs.ia_valid |= ATTR_UID; -@@ -987,6 +1024,7 @@ long do_sys_open(int dfd, const char __user *filename, int flags, umode_t mode) - } else { - fsnotify_open(f); - fd_install(fd, f); -+ trace_do_sys_open(tmp, flags, mode); - } - } - putname(tmp); -diff --git a/fs/pipe.c b/fs/pipe.c -index fec5e4a..f4210f9 100644 ---- a/fs/pipe.c -+++ b/fs/pipe.c -@@ -438,9 +438,9 @@ redo: - } - if (bufs) /* More to do? */ - continue; -- if (!pipe->writers) -+ if (!atomic_read(&pipe->writers)) - break; -- if (!pipe->waiting_writers) { -+ if (!atomic_read(&pipe->waiting_writers)) { - /* syscall merging: Usually we must not sleep - * if O_NONBLOCK is set, or if we got some data. - * But if a writer sleeps in kernel space, then -@@ -504,7 +504,7 @@ pipe_write(struct kiocb *iocb, const struct iovec *_iov, - mutex_lock(&inode->i_mutex); - pipe = inode->i_pipe; - -- if (!pipe->readers) { -+ if (!atomic_read(&pipe->readers)) { - send_sig(SIGPIPE, current, 0); - ret = -EPIPE; - goto out; -@@ -553,7 +553,7 @@ redo1: - for (;;) { - int bufs; - -- if (!pipe->readers) { -+ if (!atomic_read(&pipe->readers)) { - send_sig(SIGPIPE, current, 0); - if (!ret) - ret = -EPIPE; -@@ -644,9 +644,9 @@ redo2: - kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN); - do_wakeup = 0; - } -- pipe->waiting_writers++; -+ atomic_inc(&pipe->waiting_writers); - pipe_wait(pipe); -- pipe->waiting_writers--; -+ atomic_dec(&pipe->waiting_writers); - } - out: - mutex_unlock(&inode->i_mutex); -@@ -713,7 +713,7 @@ pipe_poll(struct file *filp, poll_table *wait) - mask = 0; - if (filp->f_mode & FMODE_READ) { - mask = (nrbufs > 0) ? POLLIN | POLLRDNORM : 0; -- if (!pipe->writers && filp->f_version != pipe->w_counter) -+ if (!atomic_read(&pipe->writers) && filp->f_version != pipe->w_counter) - mask |= POLLHUP; - } - -@@ -723,7 +723,7 @@ pipe_poll(struct file *filp, poll_table *wait) - * Most Unices do not set POLLERR for FIFOs but on Linux they - * behave exactly like pipes for poll(). - */ -- if (!pipe->readers) -+ if (!atomic_read(&pipe->readers)) - mask |= POLLERR; - } - -@@ -737,10 +737,10 @@ pipe_release(struct inode *inode, int decr, int decw) - - mutex_lock(&inode->i_mutex); - pipe = inode->i_pipe; -- pipe->readers -= decr; -- pipe->writers -= decw; -+ atomic_sub(decr, &pipe->readers); -+ atomic_sub(decw, &pipe->writers); - -- if (!pipe->readers && !pipe->writers) { -+ if (!atomic_read(&pipe->readers) && !atomic_read(&pipe->writers)) { - free_pipe_info(inode); - } else { - wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM | POLLERR | POLLHUP); -@@ -830,7 +830,7 @@ pipe_read_open(struct inode *inode, struct file *filp) - - if (inode->i_pipe) { - ret = 0; -- inode->i_pipe->readers++; -+ atomic_inc(&inode->i_pipe->readers); - } - - mutex_unlock(&inode->i_mutex); -@@ -847,7 +847,7 @@ pipe_write_open(struct inode *inode, struct file *filp) - - if (inode->i_pipe) { - ret = 0; -- inode->i_pipe->writers++; -+ atomic_inc(&inode->i_pipe->writers); - } - - mutex_unlock(&inode->i_mutex); -@@ -865,9 +865,9 @@ pipe_rdwr_open(struct inode *inode, struct file *filp) - if (inode->i_pipe) { - ret = 0; - if (filp->f_mode & FMODE_READ) -- inode->i_pipe->readers++; -+ atomic_inc(&inode->i_pipe->readers); - if (filp->f_mode & FMODE_WRITE) -- inode->i_pipe->writers++; -+ atomic_inc(&inode->i_pipe->writers); - } - - mutex_unlock(&inode->i_mutex); -@@ -959,7 +959,7 @@ void free_pipe_info(struct inode *inode) - inode->i_pipe = NULL; - } - --static struct vfsmount *pipe_mnt __read_mostly; -+struct vfsmount *pipe_mnt __read_mostly; - - /* - * pipefs_dname() is called from d_path(). -@@ -989,7 +989,8 @@ static struct inode * get_pipe_inode(void) - goto fail_iput; - inode->i_pipe = pipe; - -- pipe->readers = pipe->writers = 1; -+ atomic_set(&pipe->readers, 1); -+ atomic_set(&pipe->writers, 1); - inode->i_fop = &rdwr_pipefifo_fops; - - /* -diff --git a/fs/proc/Kconfig b/fs/proc/Kconfig -index 15af622..0e9f4467 100644 ---- a/fs/proc/Kconfig -+++ b/fs/proc/Kconfig -@@ -30,12 +30,12 @@ config PROC_FS - - config PROC_KCORE - bool "/proc/kcore support" if !ARM -- depends on PROC_FS && MMU -+ depends on PROC_FS && MMU && !GRKERNSEC_PROC_ADD - - config PROC_VMCORE - bool "/proc/vmcore support" -- depends on PROC_FS && CRASH_DUMP -- default y -+ depends on PROC_FS && CRASH_DUMP && !GRKERNSEC -+ default n - help - Exports the dump image of crashed kernel in ELF format. - -@@ -59,8 +59,8 @@ config PROC_SYSCTL - limited in memory. - - config PROC_PAGE_MONITOR -- default y -- depends on PROC_FS && MMU -+ default n -+ depends on PROC_FS && MMU && !GRKERNSEC - bool "Enable /proc page monitoring" if EXPERT - help - Various /proc files exist to monitor process memory utilization: -diff --git a/fs/proc/array.c b/fs/proc/array.c -index f9bd395..acb7847 100644 ---- a/fs/proc/array.c -+++ b/fs/proc/array.c -@@ -60,6 +60,7 @@ - #include <linux/tty.h> - #include <linux/string.h> - #include <linux/mman.h> -+#include <linux/grsecurity.h> - #include <linux/proc_fs.h> - #include <linux/ioport.h> - #include <linux/uaccess.h> -@@ -337,6 +338,21 @@ static void task_cpus_allowed(struct seq_file *m, struct task_struct *task) - seq_putc(m, '\n'); - } - -+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR) -+static inline void task_pax(struct seq_file *m, struct task_struct *p) -+{ -+ if (p->mm) -+ seq_printf(m, "PaX:\t%c%c%c%c%c\n", -+ p->mm->pax_flags & MF_PAX_PAGEEXEC ? 'P' : 'p', -+ p->mm->pax_flags & MF_PAX_EMUTRAMP ? 'E' : 'e', -+ p->mm->pax_flags & MF_PAX_MPROTECT ? 'M' : 'm', -+ p->mm->pax_flags & MF_PAX_RANDMMAP ? 'R' : 'r', -+ p->mm->pax_flags & MF_PAX_SEGMEXEC ? 'S' : 's'); -+ else -+ seq_printf(m, "PaX:\t-----\n"); -+} -+#endif -+ - int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, - struct pid *pid, struct task_struct *task) - { -@@ -354,9 +370,24 @@ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, - task_cpus_allowed(m, task); - cpuset_task_status_allowed(m, task); - task_context_switch_counts(m, task); -+ -+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR) -+ task_pax(m, task); -+#endif -+ -+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC) -+ task_grsec_rbac(m, task); -+#endif -+ - return 0; - } - -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \ -+ (_mm->pax_flags & MF_PAX_RANDMMAP || \ -+ _mm->pax_flags & MF_PAX_SEGMEXEC)) -+#endif -+ - static int do_task_stat(struct seq_file *m, struct pid_namespace *ns, - struct pid *pid, struct task_struct *task, int whole) - { -@@ -378,6 +409,13 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns, - char tcomm[sizeof(task->comm)]; - unsigned long flags; - -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ if (current->exec_id != m->exec_id) { -+ gr_log_badprocpid("stat"); -+ return 0; -+ } -+#endif -+ - state = *get_task_state(task); - vsize = eip = esp = 0; - permitted = ptrace_may_access(task, PTRACE_MODE_READ | PTRACE_MODE_NOAUDIT); -@@ -449,6 +487,19 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns, - gtime = task->gtime; - } - -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ if (PAX_RAND_FLAGS(mm)) { -+ eip = 0; -+ esp = 0; -+ wchan = 0; -+ } -+#endif -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ wchan = 0; -+ eip =0; -+ esp =0; -+#endif -+ - /* scale priority and nice values from timeslices to -20..20 */ - /* to make it look like a "normal" Unix priority/nice value */ - priority = task_prio(task); -@@ -485,9 +536,15 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns, - seq_put_decimal_ull(m, ' ', vsize); - seq_put_decimal_ll(m, ' ', mm ? get_mm_rss(mm) : 0); - seq_put_decimal_ull(m, ' ', rsslim); -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->start_code : 1) : 0)); -+ seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->end_code : 1) : 0)); -+ seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 0 : ((permitted && mm) ? mm->start_stack : 0)); -+#else - seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->start_code : 1) : 0); - seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->end_code : 1) : 0); - seq_put_decimal_ull(m, ' ', (permitted && mm) ? mm->start_stack : 0); -+#endif - seq_put_decimal_ull(m, ' ', esp); - seq_put_decimal_ull(m, ' ', eip); - /* The signal information here is obsolete. -@@ -508,9 +565,15 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns, - seq_put_decimal_ull(m, ' ', delayacct_blkio_ticks(task)); - seq_put_decimal_ull(m, ' ', cputime_to_clock_t(gtime)); - seq_put_decimal_ll(m, ' ', cputime_to_clock_t(cgtime)); -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 0 : ((mm && permitted) ? mm->start_data : 0)); -+ seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 0 : ((mm && permitted) ? mm->end_data : 0)); -+ seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 0 : ((mm && permitted) ? mm->start_brk : 0)); -+#else - seq_put_decimal_ull(m, ' ', (mm && permitted) ? mm->start_data : 0); - seq_put_decimal_ull(m, ' ', (mm && permitted) ? mm->end_data : 0); - seq_put_decimal_ull(m, ' ', (mm && permitted) ? mm->start_brk : 0); -+#endif - seq_putc(m, '\n'); - if (mm) - mmput(mm); -@@ -533,8 +596,15 @@ int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns, - struct pid *pid, struct task_struct *task) - { - unsigned long size = 0, resident = 0, shared = 0, text = 0, data = 0; -- struct mm_struct *mm = get_task_mm(task); -+ struct mm_struct *mm; - -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ if (current->exec_id != m->exec_id) { -+ gr_log_badprocpid("statm"); -+ return 0; -+ } -+#endif -+ mm = get_task_mm(task); - if (mm) { - size = task_statm(mm, &shared, &text, &data, &resident); - mmput(mm); -@@ -556,3 +626,18 @@ int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns, - - return 0; - } -+ -+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR -+int proc_pid_ipaddr(struct task_struct *task, char *buffer) -+{ -+ u32 curr_ip = 0; -+ unsigned long flags; -+ -+ if (lock_task_sighand(task, &flags)) { -+ curr_ip = task->signal->curr_ip; -+ unlock_task_sighand(task, &flags); -+ } -+ -+ return sprintf(buffer, "%pI4\n", &curr_ip); -+} -+#endif -diff --git a/fs/proc/base.c b/fs/proc/base.c -index 9fc77b4..04761b8 100644 ---- a/fs/proc/base.c -+++ b/fs/proc/base.c -@@ -109,6 +109,14 @@ struct pid_entry { - union proc_op op; - }; - -+struct getdents_callback { -+ struct linux_dirent __user * current_dir; -+ struct linux_dirent __user * previous; -+ struct file * file; -+ int count; -+ int error; -+}; -+ - #define NOD(NAME, MODE, IOP, FOP, OP) { \ - .name = (NAME), \ - .len = sizeof(NAME) - 1, \ -@@ -213,6 +221,9 @@ static int proc_pid_cmdline(struct task_struct *task, char * buffer) - if (!mm->arg_end) - goto out_mm; /* Shh! No looking before we're done */ - -+ if (gr_acl_handle_procpidmem(task)) -+ goto out_mm; -+ - len = mm->arg_end - mm->arg_start; - - if (len > PAGE_SIZE) -@@ -240,12 +251,28 @@ out: - return res; - } - -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \ -+ (_mm->pax_flags & MF_PAX_RANDMMAP || \ -+ _mm->pax_flags & MF_PAX_SEGMEXEC)) -+#endif -+ - static int proc_pid_auxv(struct task_struct *task, char *buffer) - { - struct mm_struct *mm = mm_for_maps(task); - int res = PTR_ERR(mm); - if (mm && !IS_ERR(mm)) { - unsigned int nwords = 0; -+ -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ /* allow if we're currently ptracing this task */ -+ if (PAX_RAND_FLAGS(mm) && -+ (!(task->ptrace & PT_PTRACED) || (task->parent != current))) { -+ mmput(mm); -+ return 0; -+ } -+#endif -+ - do { - nwords += 2; - } while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */ -@@ -259,7 +286,7 @@ static int proc_pid_auxv(struct task_struct *task, char *buffer) - } - - --#ifdef CONFIG_KALLSYMS -+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM) - /* - * Provides a wchan file via kallsyms in a proper one-value-per-file format. - * Returns the resolved symbol. If that fails, simply return the address. -@@ -298,7 +325,7 @@ static void unlock_trace(struct task_struct *task) - mutex_unlock(&task->signal->cred_guard_mutex); - } - --#ifdef CONFIG_STACKTRACE -+#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM) - - #define MAX_STACK_TRACE_DEPTH 64 - -@@ -489,7 +516,7 @@ static int proc_pid_limits(struct task_struct *task, char *buffer) - return count; - } - --#ifdef CONFIG_HAVE_ARCH_TRACEHOOK -+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP) - static int proc_pid_syscall(struct task_struct *task, char *buffer) - { - long nr; -@@ -518,7 +545,7 @@ static int proc_pid_syscall(struct task_struct *task, char *buffer) - /************************************************************************/ - - /* permission checks */ --static int proc_fd_access_allowed(struct inode *inode) -+static int proc_fd_access_allowed(struct inode *inode, unsigned int log) - { - struct task_struct *task; - int allowed = 0; -@@ -528,7 +555,10 @@ static int proc_fd_access_allowed(struct inode *inode) - */ - task = get_proc_task(inode); - if (task) { -- allowed = ptrace_may_access(task, PTRACE_MODE_READ); -+ if (log) -+ allowed = ptrace_may_access(task, PTRACE_MODE_READ); -+ else -+ allowed = ptrace_may_access(task, PTRACE_MODE_READ | PTRACE_MODE_NOAUDIT); - put_task_struct(task); - } - return allowed; -@@ -566,10 +596,35 @@ static bool has_pid_permissions(struct pid_namespace *pid, - struct task_struct *task, - int hide_pid_min) - { -+ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task)) -+ return false; -+ -+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ rcu_read_lock(); -+ { -+ const struct cred *tmpcred = current_cred(); -+ const struct cred *cred = __task_cred(task); -+ -+ if (!tmpcred->uid || (tmpcred->uid == cred->uid) -+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP -+ || in_group_p(CONFIG_GRKERNSEC_PROC_GID) -+#endif -+ ) { -+ rcu_read_unlock(); -+ return true; -+ } -+ } -+ rcu_read_unlock(); -+ -+ if (!pid->hide_pid) -+ return false; -+#endif -+ - if (pid->hide_pid < hide_pid_min) - return true; - if (in_group_p(pid->pid_gid)) - return true; -+ - return ptrace_may_access(task, PTRACE_MODE_READ); - } - -@@ -587,7 +642,11 @@ static int proc_pid_permission(struct inode *inode, int mask) - put_task_struct(task); - - if (!has_perms) { -+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ { -+#else - if (pid->hide_pid == 2) { -+#endif - /* - * Let's make getdents(), stat(), and open() - * consistent with each other. If a process -@@ -702,6 +761,10 @@ static int mem_open(struct inode* inode, struct file* file) - file->f_mode |= FMODE_UNSIGNED_OFFSET; - file->private_data = mm; - -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ file->f_version = current->exec_id; -+#endif -+ - return 0; - } - -@@ -713,6 +776,17 @@ static ssize_t mem_rw(struct file *file, char __user *buf, - ssize_t copied; - char *page; - -+#ifdef CONFIG_GRKERNSEC -+ if (write) -+ return -EPERM; -+#endif -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ if (file->f_version != current->exec_id) { -+ gr_log_badprocpid("mem"); -+ return 0; -+ } -+#endif -+ - if (!mm) - return 0; - -@@ -813,6 +887,9 @@ static ssize_t environ_read(struct file *file, char __user *buf, - if (!task) - goto out_no_task; - -+ if (gr_acl_handle_procpidmem(task)) -+ goto out; -+ - ret = -ENOMEM; - page = (char *)__get_free_page(GFP_TEMPORARY); - if (!page) -@@ -1433,7 +1510,7 @@ static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd) - path_put(&nd->path); - - /* Are we allowed to snoop on the tasks file descriptors? */ -- if (!proc_fd_access_allowed(inode)) -+ if (!proc_fd_access_allowed(inode, 0)) - goto out; - - error = PROC_I(inode)->op.proc_get_link(dentry, &nd->path); -@@ -1472,8 +1549,18 @@ static int proc_pid_readlink(struct dentry * dentry, char __user * buffer, int b - struct path path; - - /* Are we allowed to snoop on the tasks file descriptors? */ -- if (!proc_fd_access_allowed(inode)) -- goto out; -+ /* logging this is needed for learning on chromium to work properly, -+ but we don't want to flood the logs from 'ps' which does a readlink -+ on /proc/fd/2 of tasks in the listing, nor do we want 'ps' to learn -+ CAP_SYS_PTRACE as it's not necessary for its basic functionality -+ */ -+ if (dentry->d_name.name[0] == '2' && dentry->d_name.name[1] == '\0') { -+ if (!proc_fd_access_allowed(inode,0)) -+ goto out; -+ } else { -+ if (!proc_fd_access_allowed(inode,1)) -+ goto out; -+ } - - error = PROC_I(inode)->op.proc_get_link(dentry, &path); - if (error) -@@ -1538,7 +1625,11 @@ struct inode *proc_pid_make_inode(struct super_block * sb, struct task_struct *t - rcu_read_lock(); - cred = __task_cred(task); - inode->i_uid = cred->euid; -+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP -+ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID; -+#else - inode->i_gid = cred->egid; -+#endif - rcu_read_unlock(); - } - security_task_to_inode(task, inode); -@@ -1574,10 +1665,19 @@ int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) - return -ENOENT; - } - if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) || -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) || -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) || -+#endif - task_dumpable(task)) { - cred = __task_cred(task); - stat->uid = cred->euid; -+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP -+ stat->gid = CONFIG_GRKERNSEC_PROC_GID; -+#else - stat->gid = cred->egid; -+#endif - } - } - rcu_read_unlock(); -@@ -1615,11 +1715,20 @@ int pid_revalidate(struct dentry *dentry, struct nameidata *nd) - - if (task) { - if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) || -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) || -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) || -+#endif - task_dumpable(task)) { - rcu_read_lock(); - cred = __task_cred(task); - inode->i_uid = cred->euid; -+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP -+ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID; -+#else - inode->i_gid = cred->egid; -+#endif - rcu_read_unlock(); - } else { - inode->i_uid = 0; -@@ -1737,7 +1846,8 @@ static int proc_fd_info(struct inode *inode, struct path *path, char *info) - int fd = proc_fd(inode); - - if (task) { -- files = get_files_struct(task); -+ if (!gr_acl_handle_procpidmem(task)) -+ files = get_files_struct(task); - put_task_struct(task); - } - if (files) { -@@ -2338,11 +2448,21 @@ static const struct file_operations proc_map_files_operations = { - */ - static int proc_fd_permission(struct inode *inode, int mask) - { -+ struct task_struct *task; - int rv = generic_permission(inode, mask); -- if (rv == 0) -- return 0; -+ - if (task_pid(current) == proc_pid(inode)) - rv = 0; -+ -+ task = get_proc_task(inode); -+ if (task == NULL) -+ return rv; -+ -+ if (gr_acl_handle_procpidmem(task)) -+ rv = -EACCES; -+ -+ put_task_struct(task); -+ - return rv; - } - -@@ -2452,6 +2572,9 @@ static struct dentry *proc_pident_lookup(struct inode *dir, - if (!task) - goto out_no_task; - -+ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task)) -+ goto out; -+ - /* - * Yes, it does not scale. And it should not. Don't add - * new entries into /proc/<tgid>/ without very good reasons. -@@ -2496,6 +2619,9 @@ static int proc_pident_readdir(struct file *filp, - if (!task) - goto out_no_task; - -+ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task)) -+ goto out; -+ - ret = 0; - i = filp->f_pos; - switch (i) { -@@ -2766,7 +2892,7 @@ static void *proc_self_follow_link(struct dentry *dentry, struct nameidata *nd) - static void proc_self_put_link(struct dentry *dentry, struct nameidata *nd, - void *cookie) - { -- char *s = nd_get_link(nd); -+ const char *s = nd_get_link(nd); - if (!IS_ERR(s)) - __putname(s); - } -@@ -2967,7 +3093,7 @@ static const struct pid_entry tgid_base_stuff[] = { - REG("autogroup", S_IRUGO|S_IWUSR, proc_pid_sched_autogroup_operations), - #endif - REG("comm", S_IRUGO|S_IWUSR, proc_pid_set_comm_operations), --#ifdef CONFIG_HAVE_ARCH_TRACEHOOK -+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP) - INF("syscall", S_IRUGO, proc_pid_syscall), - #endif - INF("cmdline", S_IRUGO, proc_pid_cmdline), -@@ -2992,10 +3118,10 @@ static const struct pid_entry tgid_base_stuff[] = { - #ifdef CONFIG_SECURITY - DIR("attr", S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations), - #endif --#ifdef CONFIG_KALLSYMS -+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM) - INF("wchan", S_IRUGO, proc_pid_wchan), - #endif --#ifdef CONFIG_STACKTRACE -+#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM) - ONE("stack", S_IRUGO, proc_pid_stack), - #endif - #ifdef CONFIG_SCHEDSTATS -@@ -3029,6 +3155,9 @@ static const struct pid_entry tgid_base_stuff[] = { - #ifdef CONFIG_HARDWALL - INF("hardwall", S_IRUGO, proc_pid_hardwall), - #endif -+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR -+ INF("ipaddr", S_IRUSR, proc_pid_ipaddr), -+#endif - }; - - static int proc_tgid_base_readdir(struct file * filp, -@@ -3155,7 +3284,14 @@ static struct dentry *proc_pid_instantiate(struct inode *dir, - if (!inode) - goto out; - -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ inode->i_mode = S_IFDIR|S_IRUSR|S_IXUSR; -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID; -+ inode->i_mode = S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP; -+#else - inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO; -+#endif - inode->i_op = &proc_tgid_base_inode_operations; - inode->i_fop = &proc_tgid_base_operations; - inode->i_flags|=S_IMMUTABLE; -@@ -3197,7 +3333,11 @@ struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct - if (!task) - goto out; - -+ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task)) -+ goto out_put_task; -+ - result = proc_pid_instantiate(dir, dentry, task, NULL); -+out_put_task: - put_task_struct(task); - out: - return result; -@@ -3260,6 +3400,8 @@ static int proc_pid_fill_cache(struct file *filp, void *dirent, filldir_t filldi - static int fake_filldir(void *buf, const char *name, int namelen, - loff_t offset, u64 ino, unsigned d_type) - { -+ struct getdents_callback * __buf = (struct getdents_callback *) buf; -+ __buf->error = -EINVAL; - return 0; - } - -@@ -3326,7 +3468,7 @@ static const struct pid_entry tid_base_stuff[] = { - REG("sched", S_IRUGO|S_IWUSR, proc_pid_sched_operations), - #endif - REG("comm", S_IRUGO|S_IWUSR, proc_pid_set_comm_operations), --#ifdef CONFIG_HAVE_ARCH_TRACEHOOK -+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP) - INF("syscall", S_IRUGO, proc_pid_syscall), - #endif - INF("cmdline", S_IRUGO, proc_pid_cmdline), -@@ -3350,10 +3492,10 @@ static const struct pid_entry tid_base_stuff[] = { - #ifdef CONFIG_SECURITY - DIR("attr", S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations), - #endif --#ifdef CONFIG_KALLSYMS -+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM) - INF("wchan", S_IRUGO, proc_pid_wchan), - #endif --#ifdef CONFIG_STACKTRACE -+#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM) - ONE("stack", S_IRUGO, proc_pid_stack), - #endif - #ifdef CONFIG_SCHEDSTATS -diff --git a/fs/proc/cmdline.c b/fs/proc/cmdline.c -index 82676e3..5f8518a 100644 ---- a/fs/proc/cmdline.c -+++ b/fs/proc/cmdline.c -@@ -23,7 +23,11 @@ static const struct file_operations cmdline_proc_fops = { - - static int __init proc_cmdline_init(void) - { -+#ifdef CONFIG_GRKERNSEC_PROC_ADD -+ proc_create_grsec("cmdline", 0, NULL, &cmdline_proc_fops); -+#else - proc_create("cmdline", 0, NULL, &cmdline_proc_fops); -+#endif - return 0; - } - module_init(proc_cmdline_init); -diff --git a/fs/proc/devices.c b/fs/proc/devices.c -index b143471..bb105e5 100644 ---- a/fs/proc/devices.c -+++ b/fs/proc/devices.c -@@ -64,7 +64,11 @@ static const struct file_operations proc_devinfo_operations = { - - static int __init proc_devices_init(void) - { -+#ifdef CONFIG_GRKERNSEC_PROC_ADD -+ proc_create_grsec("devices", 0, NULL, &proc_devinfo_operations); -+#else - proc_create("devices", 0, NULL, &proc_devinfo_operations); -+#endif - return 0; - } - module_init(proc_devices_init); -diff --git a/fs/proc/inode.c b/fs/proc/inode.c -index 205c922..2ee4c57 100644 ---- a/fs/proc/inode.c -+++ b/fs/proc/inode.c -@@ -21,11 +21,17 @@ - #include <linux/seq_file.h> - #include <linux/slab.h> - #include <linux/mount.h> -+#include <linux/grsecurity.h> - - #include <asm/uaccess.h> - - #include "internal.h" - -+#ifdef CONFIG_PROC_SYSCTL -+extern const struct inode_operations proc_sys_inode_operations; -+extern const struct inode_operations proc_sys_dir_operations; -+#endif -+ - static void proc_evict_inode(struct inode *inode) - { - struct proc_dir_entry *de; -@@ -51,6 +57,13 @@ static void proc_evict_inode(struct inode *inode) - ns_ops = PROC_I(inode)->ns_ops; - if (ns_ops && ns_ops->put) - ns_ops->put(PROC_I(inode)->ns); -+ -+#ifdef CONFIG_PROC_SYSCTL -+ if (inode->i_op == &proc_sys_inode_operations || -+ inode->i_op == &proc_sys_dir_operations) -+ gr_handle_delete(inode->i_ino, inode->i_sb->s_dev); -+#endif -+ - } - - static struct kmem_cache * proc_inode_cachep; -@@ -456,7 +469,11 @@ struct inode *proc_get_inode(struct super_block *sb, struct proc_dir_entry *de) - if (de->mode) { - inode->i_mode = de->mode; - inode->i_uid = de->uid; -+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP -+ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID; -+#else - inode->i_gid = de->gid; -+#endif - } - if (de->size) - inode->i_size = de->size; -diff --git a/fs/proc/internal.h b/fs/proc/internal.h -index 5f79bb8..eeccee4 100644 ---- a/fs/proc/internal.h -+++ b/fs/proc/internal.h -@@ -54,6 +54,9 @@ extern int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, - struct pid *pid, struct task_struct *task); - extern int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns, - struct pid *pid, struct task_struct *task); -+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR -+extern int proc_pid_ipaddr(struct task_struct *task, char *buffer); -+#endif - extern loff_t mem_lseek(struct file *file, loff_t offset, int orig); - - extern const struct file_operations proc_pid_maps_operations; -diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c -index 86c67ee..cdca321 100644 ---- a/fs/proc/kcore.c -+++ b/fs/proc/kcore.c -@@ -480,9 +480,10 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos) - * the addresses in the elf_phdr on our list. - */ - start = kc_offset_to_vaddr(*fpos - elf_buflen); -- if ((tsz = (PAGE_SIZE - (start & ~PAGE_MASK))) > buflen) -+ tsz = PAGE_SIZE - (start & ~PAGE_MASK); -+ if (tsz > buflen) - tsz = buflen; -- -+ - while (buflen) { - struct kcore_list *m; - -@@ -511,20 +512,23 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos) - kfree(elf_buf); - } else { - if (kern_addr_valid(start)) { -- unsigned long n; -+ char *elf_buf; -+ mm_segment_t oldfs; - -- n = copy_to_user(buffer, (char *)start, tsz); -- /* -- * We cannot distinguish between fault on source -- * and fault on destination. When this happens -- * we clear too and hope it will trigger the -- * EFAULT again. -- */ -- if (n) { -- if (clear_user(buffer + tsz - n, -- n)) -+ elf_buf = kmalloc(tsz, GFP_KERNEL); -+ if (!elf_buf) -+ return -ENOMEM; -+ oldfs = get_fs(); -+ set_fs(KERNEL_DS); -+ if (!__copy_from_user(elf_buf, (const void __user *)start, tsz)) { -+ set_fs(oldfs); -+ if (copy_to_user(buffer, elf_buf, tsz)) { -+ kfree(elf_buf); - return -EFAULT; -+ } - } -+ set_fs(oldfs); -+ kfree(elf_buf); - } else { - if (clear_user(buffer, tsz)) - return -EFAULT; -@@ -544,6 +548,9 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos) - - static int open_kcore(struct inode *inode, struct file *filp) - { -+#if defined(CONFIG_GRKERNSEC_PROC_ADD) || defined(CONFIG_GRKERNSEC_HIDESYM) -+ return -EPERM; -+#endif - if (!capable(CAP_SYS_RAWIO)) - return -EPERM; - if (kcore_need_update) -diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c -index 80e4645..53e5fcf 100644 ---- a/fs/proc/meminfo.c -+++ b/fs/proc/meminfo.c -@@ -158,7 +158,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v) - vmi.used >> 10, - vmi.largest_chunk >> 10 - #ifdef CONFIG_MEMORY_FAILURE -- ,atomic_long_read(&mce_bad_pages) << (PAGE_SHIFT - 10) -+ ,atomic_long_read_unchecked(&mce_bad_pages) << (PAGE_SHIFT - 10) - #endif - #ifdef CONFIG_TRANSPARENT_HUGEPAGE - ,K(global_page_state(NR_ANON_TRANSPARENT_HUGEPAGES) * -diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c -index b1822dd..df622cb 100644 ---- a/fs/proc/nommu.c -+++ b/fs/proc/nommu.c -@@ -66,7 +66,7 @@ static int nommu_region_show(struct seq_file *m, struct vm_region *region) - if (len < 1) - len = 1; - seq_printf(m, "%*c", len, ' '); -- seq_path(m, &file->f_path, ""); -+ seq_path(m, &file->f_path, "\n\\"); - } - - seq_putc(m, '\n'); -diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c -index 06e1cc1..177cd98 100644 ---- a/fs/proc/proc_net.c -+++ b/fs/proc/proc_net.c -@@ -105,6 +105,17 @@ static struct net *get_proc_task_net(struct inode *dir) - struct task_struct *task; - struct nsproxy *ns; - struct net *net = NULL; -+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ const struct cred *cred = current_cred(); -+#endif -+ -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ if (cred->fsuid) -+ return net; -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ if (cred->fsuid && !in_group_p(CONFIG_GRKERNSEC_PROC_GID)) -+ return net; -+#endif - - rcu_read_lock(); - task = pid_task(proc_pid(dir), PIDTYPE_PID); -diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c -index 21d836f..bebf3ee 100644 ---- a/fs/proc/proc_sysctl.c -+++ b/fs/proc/proc_sysctl.c -@@ -12,11 +12,15 @@ - #include <linux/module.h> - #include "internal.h" - -+extern int gr_handle_chroot_sysctl(const int op); -+extern int gr_handle_sysctl_mod(const char *dirname, const char *name, -+ const int op); -+ - static const struct dentry_operations proc_sys_dentry_operations; - static const struct file_operations proc_sys_file_operations; --static const struct inode_operations proc_sys_inode_operations; -+const struct inode_operations proc_sys_inode_operations; - static const struct file_operations proc_sys_dir_file_operations; --static const struct inode_operations proc_sys_dir_operations; -+const struct inode_operations proc_sys_dir_operations; - - void proc_sys_poll_notify(struct ctl_table_poll *poll) - { -@@ -470,8 +474,14 @@ static struct dentry *proc_sys_lookup(struct inode *dir, struct dentry *dentry, - - err = NULL; - d_set_d_op(dentry, &proc_sys_dentry_operations); -+ -+ gr_handle_proc_create(dentry, inode); -+ - d_add(dentry, inode); - -+ if (!gr_acl_handle_hidden_file(dentry, nd->path.mnt)) -+ err = ERR_PTR(-ENOENT); -+ - out: - sysctl_head_finish(head); - return err; -@@ -483,18 +493,20 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf, - struct inode *inode = filp->f_path.dentry->d_inode; - struct ctl_table_header *head = grab_header(inode); - struct ctl_table *table = PROC_I(inode)->sysctl_entry; -+ int op = write ? MAY_WRITE : MAY_READ; - ssize_t error; - size_t res; - - if (IS_ERR(head)) - return PTR_ERR(head); - -+ - /* - * At this point we know that the sysctl was not unregistered - * and won't be until we finish. - */ - error = -EPERM; -- if (sysctl_perm(head->root, table, write ? MAY_WRITE : MAY_READ)) -+ if (sysctl_perm(head->root, table, op)) - goto out; - - /* if that can happen at all, it should be -EINVAL, not -EISDIR */ -@@ -502,6 +514,22 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf, - if (!table->proc_handler) - goto out; - -+#ifdef CONFIG_GRKERNSEC -+ error = -EPERM; -+ if (gr_handle_chroot_sysctl(op)) -+ goto out; -+ dget(filp->f_path.dentry); -+ if (gr_handle_sysctl_mod(filp->f_path.dentry->d_parent->d_name.name, table->procname, op)) { -+ dput(filp->f_path.dentry); -+ goto out; -+ } -+ dput(filp->f_path.dentry); -+ if (!gr_acl_handle_open(filp->f_path.dentry, filp->f_path.mnt, op)) -+ goto out; -+ if (write && !capable(CAP_SYS_ADMIN)) -+ goto out; -+#endif -+ - /* careful: calling conventions are nasty here */ - res = count; - error = table->proc_handler(table, write, buf, &res, ppos); -@@ -599,6 +627,9 @@ static int proc_sys_fill_cache(struct file *filp, void *dirent, - return -ENOMEM; - } else { - d_set_d_op(child, &proc_sys_dentry_operations); -+ -+ gr_handle_proc_create(child, inode); -+ - d_add(child, inode); - } - } else { -@@ -642,6 +673,9 @@ static int scan(struct ctl_table_header *head, ctl_table *table, - if ((*pos)++ < file->f_pos) - return 0; - -+ if (!gr_acl_handle_hidden_file(file->f_path.dentry, file->f_path.mnt)) -+ return 0; -+ - if (unlikely(S_ISLNK(table->mode))) - res = proc_sys_link_fill_cache(file, dirent, filldir, head, table); - else -@@ -759,6 +793,9 @@ static int proc_sys_getattr(struct vfsmount *mnt, struct dentry *dentry, struct - if (IS_ERR(head)) - return PTR_ERR(head); - -+ if (table && !gr_acl_handle_hidden_file(dentry, mnt)) -+ return -ENOENT; -+ - generic_fillattr(inode, stat); - if (table) - stat->mode = (stat->mode & S_IFMT) | table->mode; -@@ -781,13 +818,13 @@ static const struct file_operations proc_sys_dir_file_operations = { - .llseek = generic_file_llseek, - }; - --static const struct inode_operations proc_sys_inode_operations = { -+const struct inode_operations proc_sys_inode_operations = { - .permission = proc_sys_permission, - .setattr = proc_sys_setattr, - .getattr = proc_sys_getattr, - }; - --static const struct inode_operations proc_sys_dir_operations = { -+const struct inode_operations proc_sys_dir_operations = { - .lookup = proc_sys_lookup, - .permission = proc_sys_permission, - .setattr = proc_sys_setattr, -diff --git a/fs/proc/root.c b/fs/proc/root.c -index eed44bf..abeb499 100644 ---- a/fs/proc/root.c -+++ b/fs/proc/root.c -@@ -188,7 +188,15 @@ void __init proc_root_init(void) - #ifdef CONFIG_PROC_DEVICETREE - proc_device_tree_init(); - #endif -+#ifdef CONFIG_GRKERNSEC_PROC_ADD -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ proc_mkdir_mode("bus", S_IRUSR | S_IXUSR, NULL); -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ proc_mkdir_mode("bus", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL); -+#endif -+#else - proc_mkdir("bus", NULL); -+#endif - proc_sys_init(); - } - -diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c -index 7faaf2a..096c28b 100644 ---- a/fs/proc/task_mmu.c -+++ b/fs/proc/task_mmu.c -@@ -11,12 +11,19 @@ - #include <linux/rmap.h> - #include <linux/swap.h> - #include <linux/swapops.h> -+#include <linux/grsecurity.h> - - #include <asm/elf.h> - #include <asm/uaccess.h> - #include <asm/tlbflush.h> - #include "internal.h" - -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \ -+ (_mm->pax_flags & MF_PAX_RANDMMAP || \ -+ _mm->pax_flags & MF_PAX_SEGMEXEC)) -+#endif -+ - void task_mem(struct seq_file *m, struct mm_struct *mm) - { - unsigned long data, text, lib, swap; -@@ -52,8 +59,13 @@ void task_mem(struct seq_file *m, struct mm_struct *mm) - "VmExe:\t%8lu kB\n" - "VmLib:\t%8lu kB\n" - "VmPTE:\t%8lu kB\n" -- "VmSwap:\t%8lu kB\n", -- hiwater_vm << (PAGE_SHIFT-10), -+ "VmSwap:\t%8lu kB\n" -+ -+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT -+ "CsBase:\t%8lx\nCsLim:\t%8lx\n" -+#endif -+ -+ ,hiwater_vm << (PAGE_SHIFT-10), - (total_vm - mm->reserved_vm) << (PAGE_SHIFT-10), - mm->locked_vm << (PAGE_SHIFT-10), - mm->pinned_vm << (PAGE_SHIFT-10), -@@ -62,7 +74,19 @@ void task_mem(struct seq_file *m, struct mm_struct *mm) - data << (PAGE_SHIFT-10), - mm->stack_vm << (PAGE_SHIFT-10), text, lib, - (PTRS_PER_PTE*sizeof(pte_t)*mm->nr_ptes) >> 10, -- swap << (PAGE_SHIFT-10)); -+ swap << (PAGE_SHIFT-10) -+ -+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ , PAX_RAND_FLAGS(mm) ? 0 : mm->context.user_cs_base -+ , PAX_RAND_FLAGS(mm) ? 0 : mm->context.user_cs_limit -+#else -+ , mm->context.user_cs_base -+ , mm->context.user_cs_limit -+#endif -+#endif -+ -+ ); - } - - unsigned long task_vsize(struct mm_struct *mm) -@@ -231,13 +255,13 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid) - pgoff = ((loff_t)vma->vm_pgoff) << PAGE_SHIFT; - } - -- /* We don't show the stack guard page in /proc/maps */ -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ start = PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_start; -+ end = PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_end; -+#else - start = vma->vm_start; -- if (stack_guard_page_start(vma, start)) -- start += PAGE_SIZE; - end = vma->vm_end; -- if (stack_guard_page_end(vma, end)) -- end -= PAGE_SIZE; -+#endif - - seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n", - start, -@@ -246,7 +270,11 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid) - flags & VM_WRITE ? 'w' : '-', - flags & VM_EXEC ? 'x' : '-', - flags & VM_MAYSHARE ? 's' : 'p', -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ PAX_RAND_FLAGS(mm) ? 0UL : pgoff, -+#else - pgoff, -+#endif - MAJOR(dev), MINOR(dev), ino, &len); - - /* -@@ -255,7 +283,7 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid) - */ - if (file) { - pad_len_spaces(m, len); -- seq_path(m, &file->f_path, "\n"); -+ seq_path(m, &file->f_path, "\n\\"); - goto done; - } - -@@ -281,8 +309,9 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid) - * Thread stack in /proc/PID/task/TID/maps or - * the main process stack. - */ -- if (!is_pid || (vma->vm_start <= mm->start_stack && -- vma->vm_end >= mm->start_stack)) { -+ if (!is_pid || (vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP)) || -+ (vma->vm_start <= mm->start_stack && -+ vma->vm_end >= mm->start_stack)) { - name = "[stack]"; - } else { - /* Thread stack in /proc/PID/maps */ -@@ -306,6 +335,13 @@ static int show_map(struct seq_file *m, void *v, int is_pid) - struct proc_maps_private *priv = m->private; - struct task_struct *task = priv->task; - -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ if (current->exec_id != m->exec_id) { -+ gr_log_badprocpid("maps"); -+ return 0; -+ } -+#endif -+ - show_map_vma(m, vma, is_pid); - - if (m->count < m->size) /* vma is copied successfully */ -@@ -482,12 +518,23 @@ static int show_smap(struct seq_file *m, void *v, int is_pid) - .private = &mss, - }; - -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ if (current->exec_id != m->exec_id) { -+ gr_log_badprocpid("smaps"); -+ return 0; -+ } -+#endif - memset(&mss, 0, sizeof mss); -- mss.vma = vma; -- /* mmap_sem is held in m_start */ -- if (vma->vm_mm && !is_vm_hugetlb_page(vma)) -- walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk); -- -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ if (!PAX_RAND_FLAGS(vma->vm_mm)) { -+#endif -+ mss.vma = vma; -+ /* mmap_sem is held in m_start */ -+ if (vma->vm_mm && !is_vm_hugetlb_page(vma)) -+ walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk); -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ } -+#endif - show_map_vma(m, vma, is_pid); - - seq_printf(m, -@@ -505,7 +552,11 @@ static int show_smap(struct seq_file *m, void *v, int is_pid) - "KernelPageSize: %8lu kB\n" - "MMUPageSize: %8lu kB\n" - "Locked: %8lu kB\n", -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : (vma->vm_end - vma->vm_start) >> 10, -+#else - (vma->vm_end - vma->vm_start) >> 10, -+#endif - mss.resident >> 10, - (unsigned long)(mss.pss >> (10 + PSS_SHIFT)), - mss.shared_clean >> 10, -@@ -1138,6 +1189,13 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid) - int n; - char buffer[50]; - -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ if (current->exec_id != m->exec_id) { -+ gr_log_badprocpid("numa_maps"); -+ return 0; -+ } -+#endif -+ - if (!mm) - return 0; - -@@ -1155,11 +1213,15 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid) - mpol_to_str(buffer, sizeof(buffer), pol, 0); - mpol_cond_put(pol); - -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ seq_printf(m, "%08lx %s", PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : vma->vm_start, buffer); -+#else - seq_printf(m, "%08lx %s", vma->vm_start, buffer); -+#endif - - if (file) { - seq_printf(m, " file="); -- seq_path(m, &file->f_path, "\n\t= "); -+ seq_path(m, &file->f_path, "\n\t\\= "); - } else if (vma->vm_start <= mm->brk && vma->vm_end >= mm->start_brk) { - seq_printf(m, " heap"); - } else { -diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c -index 74fe164..899e77b 100644 ---- a/fs/proc/task_nommu.c -+++ b/fs/proc/task_nommu.c -@@ -51,7 +51,7 @@ void task_mem(struct seq_file *m, struct mm_struct *mm) - else - bytes += kobjsize(mm); - -- if (current->fs && current->fs->users > 1) -+ if (current->fs && atomic_read(&current->fs->users) > 1) - sbytes += kobjsize(current->fs); - else - bytes += kobjsize(current->fs); -@@ -168,7 +168,7 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma, - - if (file) { - pad_len_spaces(m, len); -- seq_path(m, &file->f_path, ""); -+ seq_path(m, &file->f_path, "\n\\"); - } else if (mm) { - pid_t tid = vm_is_stack(priv->task, vma, is_pid); - -diff --git a/fs/quota/netlink.c b/fs/quota/netlink.c -index d67908b..d13f6a6 100644 ---- a/fs/quota/netlink.c -+++ b/fs/quota/netlink.c -@@ -33,7 +33,7 @@ static struct genl_family quota_genl_family = { - void quota_send_warning(short type, unsigned int id, dev_t dev, - const char warntype) - { -- static atomic_t seq; -+ static atomic_unchecked_t seq; - struct sk_buff *skb; - void *msg_head; - int ret; -@@ -49,7 +49,7 @@ void quota_send_warning(short type, unsigned int id, dev_t dev, - "VFS: Not enough memory to send quota warning.\n"); - return; - } -- msg_head = genlmsg_put(skb, 0, atomic_add_return(1, &seq), -+ msg_head = genlmsg_put(skb, 0, atomic_add_return_unchecked(1, &seq), - &quota_genl_family, 0, QUOTA_NL_C_WARNING); - if (!msg_head) { - printk(KERN_ERR -diff --git a/fs/readdir.c b/fs/readdir.c -index cc0a822..43cb195 100644 ---- a/fs/readdir.c -+++ b/fs/readdir.c -@@ -17,6 +17,7 @@ - #include <linux/security.h> - #include <linux/syscalls.h> - #include <linux/unistd.h> -+#include <linux/namei.h> - - #include <asm/uaccess.h> - -@@ -67,6 +68,7 @@ struct old_linux_dirent { - - struct readdir_callback { - struct old_linux_dirent __user * dirent; -+ struct file * file; - int result; - }; - -@@ -84,6 +86,10 @@ static int fillonedir(void * __buf, const char * name, int namlen, loff_t offset - buf->result = -EOVERFLOW; - return -EOVERFLOW; - } -+ -+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino)) -+ return 0; -+ - buf->result++; - dirent = buf->dirent; - if (!access_ok(VERIFY_WRITE, dirent, -@@ -116,6 +122,7 @@ SYSCALL_DEFINE3(old_readdir, unsigned int, fd, - - buf.result = 0; - buf.dirent = dirent; -+ buf.file = file; - - error = vfs_readdir(file, fillonedir, &buf); - if (buf.result) -@@ -142,6 +149,7 @@ struct linux_dirent { - struct getdents_callback { - struct linux_dirent __user * current_dir; - struct linux_dirent __user * previous; -+ struct file * file; - int count; - int error; - }; -@@ -163,6 +171,10 @@ static int filldir(void * __buf, const char * name, int namlen, loff_t offset, - buf->error = -EOVERFLOW; - return -EOVERFLOW; - } -+ -+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino)) -+ return 0; -+ - dirent = buf->previous; - if (dirent) { - if (__put_user(offset, &dirent->d_off)) -@@ -210,6 +222,7 @@ SYSCALL_DEFINE3(getdents, unsigned int, fd, - buf.previous = NULL; - buf.count = count; - buf.error = 0; -+ buf.file = file; - - error = vfs_readdir(file, filldir, &buf); - if (error >= 0) -@@ -229,6 +242,7 @@ out: - struct getdents_callback64 { - struct linux_dirent64 __user * current_dir; - struct linux_dirent64 __user * previous; -+ struct file *file; - int count; - int error; - }; -@@ -244,6 +258,10 @@ static int filldir64(void * __buf, const char * name, int namlen, loff_t offset, - buf->error = -EINVAL; /* only used if we fail.. */ - if (reclen > buf->count) - return -EINVAL; -+ -+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino)) -+ return 0; -+ - dirent = buf->previous; - if (dirent) { - if (__put_user(offset, &dirent->d_off)) -@@ -291,6 +309,7 @@ SYSCALL_DEFINE3(getdents64, unsigned int, fd, - - buf.current_dir = dirent; - buf.previous = NULL; -+ buf.file = file; - buf.count = count; - buf.error = 0; - -@@ -299,7 +318,7 @@ SYSCALL_DEFINE3(getdents64, unsigned int, fd, - error = buf.error; - lastdirent = buf.previous; - if (lastdirent) { -- typeof(lastdirent->d_off) d_off = file->f_pos; -+ typeof(((struct linux_dirent64 *)0)->d_off) d_off = file->f_pos; - if (__put_user(d_off, &lastdirent->d_off)) - error = -EFAULT; - else -diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c -index 2b7882b..1c5ef48 100644 ---- a/fs/reiserfs/do_balan.c -+++ b/fs/reiserfs/do_balan.c -@@ -2051,7 +2051,7 @@ void do_balance(struct tree_balance *tb, /* tree_balance structure */ - return; - } - -- atomic_inc(&(fs_generation(tb->tb_sb))); -+ atomic_inc_unchecked(&(fs_generation(tb->tb_sb))); - do_balance_starts(tb); - - /* balance leaf returns 0 except if combining L R and S into -diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c -index 2c1ade6..8c59d8d 100644 ---- a/fs/reiserfs/procfs.c -+++ b/fs/reiserfs/procfs.c -@@ -112,7 +112,7 @@ static int show_super(struct seq_file *m, struct super_block *sb) - "SMALL_TAILS " : "NO_TAILS ", - replay_only(sb) ? "REPLAY_ONLY " : "", - convert_reiserfs(sb) ? "CONV " : "", -- atomic_read(&r->s_generation_counter), -+ atomic_read_unchecked(&r->s_generation_counter), - SF(s_disk_reads), SF(s_disk_writes), SF(s_fix_nodes), - SF(s_do_balance), SF(s_unneeded_left_neighbor), - SF(s_good_search_by_key_reada), SF(s_bmaps), -diff --git a/fs/reiserfs/reiserfs.h b/fs/reiserfs/reiserfs.h -index a59d271..e12d1cf 100644 ---- a/fs/reiserfs/reiserfs.h -+++ b/fs/reiserfs/reiserfs.h -@@ -453,7 +453,7 @@ struct reiserfs_sb_info { - /* Comment? -Hans */ - wait_queue_head_t s_wait; - /* To be obsoleted soon by per buffer seals.. -Hans */ -- atomic_t s_generation_counter; // increased by one every time the -+ atomic_unchecked_t s_generation_counter; // increased by one every time the - // tree gets re-balanced - unsigned long s_properties; /* File system properties. Currently holds - on-disk FS format */ -@@ -1973,7 +1973,7 @@ static inline loff_t max_reiserfs_offset(struct inode *inode) - #define REISERFS_USER_MEM 1 /* reiserfs user memory mode */ - - #define fs_generation(s) (REISERFS_SB(s)->s_generation_counter) --#define get_generation(s) atomic_read (&fs_generation(s)) -+#define get_generation(s) atomic_read_unchecked (&fs_generation(s)) - #define FILESYSTEM_CHANGED_TB(tb) (get_generation((tb)->tb_sb) != (tb)->fs_gen) - #define __fs_changed(gen,s) (gen != get_generation (s)) - #define fs_changed(gen,s) \ -diff --git a/fs/select.c b/fs/select.c -index 17d33d0..da0bf5c 100644 ---- a/fs/select.c -+++ b/fs/select.c -@@ -20,6 +20,7 @@ - #include <linux/export.h> - #include <linux/slab.h> - #include <linux/poll.h> -+#include <linux/security.h> - #include <linux/personality.h> /* for STICKY_TIMEOUTS */ - #include <linux/file.h> - #include <linux/fdtable.h> -@@ -833,6 +834,7 @@ int do_sys_poll(struct pollfd __user *ufds, unsigned int nfds, - struct poll_list *walk = head; - unsigned long todo = nfds; - -+ gr_learn_resource(current, RLIMIT_NOFILE, nfds, 1); - if (nfds > rlimit(RLIMIT_NOFILE)) - return -EINVAL; - -diff --git a/fs/seq_file.c b/fs/seq_file.c -index 0cbd049..cab1127 100644 ---- a/fs/seq_file.c -+++ b/fs/seq_file.c -@@ -9,6 +9,7 @@ - #include <linux/export.h> - #include <linux/seq_file.h> - #include <linux/slab.h> -+#include <linux/sched.h> - - #include <asm/uaccess.h> - #include <asm/page.h> -@@ -56,6 +57,9 @@ int seq_open(struct file *file, const struct seq_operations *op) - memset(p, 0, sizeof(*p)); - mutex_init(&p->lock); - p->op = op; -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ p->exec_id = current->exec_id; -+#endif - - /* - * Wrappers around seq_open(e.g. swaps_open) need to be -@@ -567,7 +571,7 @@ static void single_stop(struct seq_file *p, void *v) - int single_open(struct file *file, int (*show)(struct seq_file *, void *), - void *data) - { -- struct seq_operations *op = kmalloc(sizeof(*op), GFP_KERNEL); -+ seq_operations_no_const *op = kmalloc(sizeof(*op), GFP_KERNEL); - int res = -ENOMEM; - - if (op) { -diff --git a/fs/splice.c b/fs/splice.c -index f847684..156619e 100644 ---- a/fs/splice.c -+++ b/fs/splice.c -@@ -194,7 +194,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe, - pipe_lock(pipe); - - for (;;) { -- if (!pipe->readers) { -+ if (!atomic_read(&pipe->readers)) { - send_sig(SIGPIPE, current, 0); - if (!ret) - ret = -EPIPE; -@@ -248,9 +248,9 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe, - do_wakeup = 0; - } - -- pipe->waiting_writers++; -+ atomic_inc(&pipe->waiting_writers); - pipe_wait(pipe); -- pipe->waiting_writers--; -+ atomic_dec(&pipe->waiting_writers); - } - - pipe_unlock(pipe); -@@ -560,7 +560,7 @@ static ssize_t kernel_readv(struct file *file, const struct iovec *vec, - old_fs = get_fs(); - set_fs(get_ds()); - /* The cast to a user pointer is valid due to the set_fs() */ -- res = vfs_readv(file, (const struct iovec __user *)vec, vlen, &pos); -+ res = vfs_readv(file, (const struct iovec __force_user *)vec, vlen, &pos); - set_fs(old_fs); - - return res; -@@ -575,7 +575,7 @@ static ssize_t kernel_write(struct file *file, const char *buf, size_t count, - old_fs = get_fs(); - set_fs(get_ds()); - /* The cast to a user pointer is valid due to the set_fs() */ -- res = vfs_write(file, (const char __user *)buf, count, &pos); -+ res = vfs_write(file, (const char __force_user *)buf, count, &pos); - set_fs(old_fs); - - return res; -@@ -626,7 +626,7 @@ ssize_t default_file_splice_read(struct file *in, loff_t *ppos, - goto err; - - this_len = min_t(size_t, len, PAGE_CACHE_SIZE - offset); -- vec[i].iov_base = (void __user *) page_address(page); -+ vec[i].iov_base = (void __force_user *) page_address(page); - vec[i].iov_len = this_len; - spd.pages[i] = page; - spd.nr_pages++; -@@ -845,10 +845,10 @@ EXPORT_SYMBOL(splice_from_pipe_feed); - int splice_from_pipe_next(struct pipe_inode_info *pipe, struct splice_desc *sd) - { - while (!pipe->nrbufs) { -- if (!pipe->writers) -+ if (!atomic_read(&pipe->writers)) - return 0; - -- if (!pipe->waiting_writers && sd->num_spliced) -+ if (!atomic_read(&pipe->waiting_writers) && sd->num_spliced) - return 0; - - if (sd->flags & SPLICE_F_NONBLOCK) -@@ -1181,7 +1181,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd, - * out of the pipe right after the splice_to_pipe(). So set - * PIPE_READERS appropriately. - */ -- pipe->readers = 1; -+ atomic_set(&pipe->readers, 1); - - current->splice_pipe = pipe; - } -@@ -1733,9 +1733,9 @@ static int ipipe_prep(struct pipe_inode_info *pipe, unsigned int flags) - ret = -ERESTARTSYS; - break; - } -- if (!pipe->writers) -+ if (!atomic_read(&pipe->writers)) - break; -- if (!pipe->waiting_writers) { -+ if (!atomic_read(&pipe->waiting_writers)) { - if (flags & SPLICE_F_NONBLOCK) { - ret = -EAGAIN; - break; -@@ -1767,7 +1767,7 @@ static int opipe_prep(struct pipe_inode_info *pipe, unsigned int flags) - pipe_lock(pipe); - - while (pipe->nrbufs >= pipe->buffers) { -- if (!pipe->readers) { -+ if (!atomic_read(&pipe->readers)) { - send_sig(SIGPIPE, current, 0); - ret = -EPIPE; - break; -@@ -1780,9 +1780,9 @@ static int opipe_prep(struct pipe_inode_info *pipe, unsigned int flags) - ret = -ERESTARTSYS; - break; - } -- pipe->waiting_writers++; -+ atomic_inc(&pipe->waiting_writers); - pipe_wait(pipe); -- pipe->waiting_writers--; -+ atomic_dec(&pipe->waiting_writers); - } - - pipe_unlock(pipe); -@@ -1818,14 +1818,14 @@ retry: - pipe_double_lock(ipipe, opipe); - - do { -- if (!opipe->readers) { -+ if (!atomic_read(&opipe->readers)) { - send_sig(SIGPIPE, current, 0); - if (!ret) - ret = -EPIPE; - break; - } - -- if (!ipipe->nrbufs && !ipipe->writers) -+ if (!ipipe->nrbufs && !atomic_read(&ipipe->writers)) - break; - - /* -@@ -1922,7 +1922,7 @@ static int link_pipe(struct pipe_inode_info *ipipe, - pipe_double_lock(ipipe, opipe); - - do { -- if (!opipe->readers) { -+ if (!atomic_read(&opipe->readers)) { - send_sig(SIGPIPE, current, 0); - if (!ret) - ret = -EPIPE; -@@ -1967,7 +1967,7 @@ static int link_pipe(struct pipe_inode_info *ipipe, - * return EAGAIN if we have the potential of some data in the - * future, otherwise just return 0 - */ -- if (!ret && ipipe->waiting_writers && (flags & SPLICE_F_NONBLOCK)) -+ if (!ret && atomic_read(&ipipe->waiting_writers) && (flags & SPLICE_F_NONBLOCK)) - ret = -EAGAIN; - - pipe_unlock(ipipe); -diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c -index 35a36d3..23424b2 100644 ---- a/fs/sysfs/dir.c -+++ b/fs/sysfs/dir.c -@@ -657,6 +657,18 @@ static int create_dir(struct kobject *kobj, struct sysfs_dirent *parent_sd, - struct sysfs_dirent *sd; - int rc; - -+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT -+ const char *parent_name = parent_sd->s_name; -+ -+ mode = S_IFDIR | S_IRWXU; -+ -+ if ((!strcmp(parent_name, "") && (!strcmp(name, "devices") || !strcmp(name, "fs"))) || -+ (!strcmp(parent_name, "devices") && !strcmp(name, "system")) || -+ (!strcmp(parent_name, "fs") && (!strcmp(name, "selinux") || !strcmp(name, "fuse"))) || -+ (!strcmp(parent_name, "system") && !strcmp(name, "cpu"))) -+ mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO; -+#endif -+ - /* allocate */ - sd = sysfs_new_dirent(name, mode, SYSFS_DIR); - if (!sd) -diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c -index 00012e3..8392349 100644 ---- a/fs/sysfs/file.c -+++ b/fs/sysfs/file.c -@@ -37,7 +37,7 @@ static DEFINE_SPINLOCK(sysfs_open_dirent_lock); - - struct sysfs_open_dirent { - atomic_t refcnt; -- atomic_t event; -+ atomic_unchecked_t event; - wait_queue_head_t poll; - struct list_head buffers; /* goes through sysfs_buffer.list */ - }; -@@ -81,7 +81,7 @@ static int fill_read_buffer(struct dentry * dentry, struct sysfs_buffer * buffer - if (!sysfs_get_active(attr_sd)) - return -ENODEV; - -- buffer->event = atomic_read(&attr_sd->s_attr.open->event); -+ buffer->event = atomic_read_unchecked(&attr_sd->s_attr.open->event); - count = ops->show(kobj, attr_sd->s_attr.attr, buffer->page); - - sysfs_put_active(attr_sd); -@@ -287,7 +287,7 @@ static int sysfs_get_open_dirent(struct sysfs_dirent *sd, - return -ENOMEM; - - atomic_set(&new_od->refcnt, 0); -- atomic_set(&new_od->event, 1); -+ atomic_set_unchecked(&new_od->event, 1); - init_waitqueue_head(&new_od->poll); - INIT_LIST_HEAD(&new_od->buffers); - goto retry; -@@ -432,7 +432,7 @@ static unsigned int sysfs_poll(struct file *filp, poll_table *wait) - - sysfs_put_active(attr_sd); - -- if (buffer->event != atomic_read(&od->event)) -+ if (buffer->event != atomic_read_unchecked(&od->event)) - goto trigger; - - return DEFAULT_POLLMASK; -@@ -451,7 +451,7 @@ void sysfs_notify_dirent(struct sysfs_dirent *sd) - - od = sd->s_attr.open; - if (od) { -- atomic_inc(&od->event); -+ atomic_inc_unchecked(&od->event); - wake_up_interruptible(&od->poll); - } - -diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c -index a7ac78f..02158e1 100644 ---- a/fs/sysfs/symlink.c -+++ b/fs/sysfs/symlink.c -@@ -286,7 +286,7 @@ static void *sysfs_follow_link(struct dentry *dentry, struct nameidata *nd) - - static void sysfs_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie) - { -- char *page = nd_get_link(nd); -+ const char *page = nd_get_link(nd); - if (!IS_ERR(page)) - free_page((unsigned long)page); - } -diff --git a/fs/udf/misc.c b/fs/udf/misc.c -index c175b4d..8f36a16 100644 ---- a/fs/udf/misc.c -+++ b/fs/udf/misc.c -@@ -289,7 +289,7 @@ void udf_new_tag(char *data, uint16_t ident, uint16_t version, uint16_t snum, - - u8 udf_tag_checksum(const struct tag *t) - { -- u8 *data = (u8 *)t; -+ const u8 *data = (const u8 *)t; - u8 checksum = 0; - int i; - for (i = 0; i < sizeof(struct tag); ++i) -diff --git a/fs/utimes.c b/fs/utimes.c -index ba653f3..06ea4b1 100644 ---- a/fs/utimes.c -+++ b/fs/utimes.c -@@ -1,6 +1,7 @@ - #include <linux/compiler.h> - #include <linux/file.h> - #include <linux/fs.h> -+#include <linux/security.h> - #include <linux/linkage.h> - #include <linux/mount.h> - #include <linux/namei.h> -@@ -101,6 +102,12 @@ static int utimes_common(struct path *path, struct timespec *times) - goto mnt_drop_write_and_out; - } - } -+ -+ if (!gr_acl_handle_utime(path->dentry, path->mnt)) { -+ error = -EACCES; -+ goto mnt_drop_write_and_out; -+ } -+ - mutex_lock(&inode->i_mutex); - error = notify_change(path->dentry, &newattrs); - mutex_unlock(&inode->i_mutex); -diff --git a/fs/xattr.c b/fs/xattr.c -index 3c8c1cc..a83c398 100644 ---- a/fs/xattr.c -+++ b/fs/xattr.c -@@ -316,7 +316,7 @@ EXPORT_SYMBOL_GPL(vfs_removexattr); - * Extended attribute SET operations - */ - static long --setxattr(struct dentry *d, const char __user *name, const void __user *value, -+setxattr(struct path *path, const char __user *name, const void __user *value, - size_t size, int flags) - { - int error; -@@ -349,7 +349,12 @@ setxattr(struct dentry *d, const char __user *name, const void __user *value, - } - } - -- error = vfs_setxattr(d, kname, kvalue, size, flags); -+ if (!gr_acl_handle_setxattr(path->dentry, path->mnt)) { -+ error = -EACCES; -+ goto out; -+ } -+ -+ error = vfs_setxattr(path->dentry, kname, kvalue, size, flags); - out: - if (vvalue) - vfree(vvalue); -@@ -370,7 +375,7 @@ SYSCALL_DEFINE5(setxattr, const char __user *, pathname, - return error; - error = mnt_want_write(path.mnt); - if (!error) { -- error = setxattr(path.dentry, name, value, size, flags); -+ error = setxattr(&path, name, value, size, flags); - mnt_drop_write(path.mnt); - } - path_put(&path); -@@ -389,7 +394,7 @@ SYSCALL_DEFINE5(lsetxattr, const char __user *, pathname, - return error; - error = mnt_want_write(path.mnt); - if (!error) { -- error = setxattr(path.dentry, name, value, size, flags); -+ error = setxattr(&path, name, value, size, flags); - mnt_drop_write(path.mnt); - } - path_put(&path); -@@ -400,17 +405,15 @@ SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name, - const void __user *,value, size_t, size, int, flags) - { - struct file *f; -- struct dentry *dentry; - int error = -EBADF; - - f = fget(fd); - if (!f) - return error; -- dentry = f->f_path.dentry; -- audit_inode(NULL, dentry); -+ audit_inode(NULL, f->f_path.dentry); - error = mnt_want_write_file(f); - if (!error) { -- error = setxattr(dentry, name, value, size, flags); -+ error = setxattr(&f->f_path, name, value, size, flags); - mnt_drop_write_file(f); - } - fput(f); -diff --git a/fs/xattr_acl.c b/fs/xattr_acl.c -index 69d06b0..c0996e5 100644 ---- a/fs/xattr_acl.c -+++ b/fs/xattr_acl.c -@@ -17,8 +17,8 @@ - struct posix_acl * - posix_acl_from_xattr(const void *value, size_t size) - { -- posix_acl_xattr_header *header = (posix_acl_xattr_header *)value; -- posix_acl_xattr_entry *entry = (posix_acl_xattr_entry *)(header+1), *end; -+ const posix_acl_xattr_header *header = (const posix_acl_xattr_header *)value; -+ const posix_acl_xattr_entry *entry = (const posix_acl_xattr_entry *)(header+1), *end; - int count; - struct posix_acl *acl; - struct posix_acl_entry *acl_e; -diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c -index 85e7e32..5344e52 100644 ---- a/fs/xfs/xfs_bmap.c -+++ b/fs/xfs/xfs_bmap.c -@@ -190,7 +190,7 @@ xfs_bmap_validate_ret( - int nmap, - int ret_nmap); - #else --#define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap) -+#define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap) do {} while (0) - #endif /* DEBUG */ - - STATIC int -diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c -index 79d05e8..e3e5861 100644 ---- a/fs/xfs/xfs_dir2_sf.c -+++ b/fs/xfs/xfs_dir2_sf.c -@@ -852,7 +852,15 @@ xfs_dir2_sf_getdents( - } - - ino = xfs_dir2_sfe_get_ino(sfp, sfep); -- if (filldir(dirent, (char *)sfep->name, sfep->namelen, -+ if (dp->i_df.if_u1.if_data == dp->i_df.if_u2.if_inline_data) { -+ char name[sfep->namelen]; -+ memcpy(name, sfep->name, sfep->namelen); -+ if (filldir(dirent, name, sfep->namelen, -+ off & 0x7fffffff, ino, DT_UNKNOWN)) { -+ *offset = off & 0x7fffffff; -+ return 0; -+ } -+ } else if (filldir(dirent, (char *)sfep->name, sfep->namelen, - off & 0x7fffffff, ino, DT_UNKNOWN)) { - *offset = off & 0x7fffffff; - return 0; -diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c -index 91f8ff5..0ce68f9 100644 ---- a/fs/xfs/xfs_ioctl.c -+++ b/fs/xfs/xfs_ioctl.c -@@ -128,7 +128,7 @@ xfs_find_handle( - } - - error = -EFAULT; -- if (copy_to_user(hreq->ohandle, &handle, hsize) || -+ if (hsize > sizeof handle || copy_to_user(hreq->ohandle, &handle, hsize) || - copy_to_user(hreq->ohandlen, &hsize, sizeof(__s32))) - goto out_put; - -diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c -index 3011b87..1ab03e9 100644 ---- a/fs/xfs/xfs_iops.c -+++ b/fs/xfs/xfs_iops.c -@@ -397,7 +397,7 @@ xfs_vn_put_link( - struct nameidata *nd, - void *p) - { -- char *s = nd_get_link(nd); -+ const char *s = nd_get_link(nd); - - if (!IS_ERR(s)) - kfree(s); -diff --git a/grsecurity/Kconfig b/grsecurity/Kconfig -new file mode 100644 -index 0000000..2d6e3a8 ---- /dev/null -+++ b/grsecurity/Kconfig -@@ -0,0 +1,915 @@ -+# -+# grecurity configuration -+# -+menu "Memory Protections" -+depends on GRKERNSEC -+ -+config GRKERNSEC_KMEM -+ bool "Deny reading/writing to /dev/kmem, /dev/mem, and /dev/port" -+ default y if GRKERNSEC_CONFIG_AUTO -+ select STRICT_DEVMEM if (X86 || ARM || TILE || S390) -+ help -+ If you say Y here, /dev/kmem and /dev/mem won't be allowed to -+ be written to or read from to modify or leak the contents of the running -+ kernel. /dev/port will also not be allowed to be opened. If you have module -+ support disabled, enabling this will close up four ways that are -+ currently used to insert malicious code into the running kernel. -+ Even with all these features enabled, we still highly recommend that -+ you use the RBAC system, as it is still possible for an attacker to -+ modify the running kernel through privileged I/O granted by ioperm/iopl. -+ If you are not using XFree86, you may be able to stop this additional -+ case by enabling the 'Disable privileged I/O' option. Though nothing -+ legitimately writes to /dev/kmem, XFree86 does need to write to /dev/mem, -+ but only to video memory, which is the only writing we allow in this -+ case. If /dev/kmem or /dev/mem are mmaped without PROT_WRITE, they will -+ not be allowed to mprotect it with PROT_WRITE later. -+ It is highly recommended that you say Y here if you meet all the -+ conditions above. -+ -+config GRKERNSEC_VM86 -+ bool "Restrict VM86 mode" -+ default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER) -+ depends on X86_32 -+ -+ help -+ If you say Y here, only processes with CAP_SYS_RAWIO will be able to -+ make use of a special execution mode on 32bit x86 processors called -+ Virtual 8086 (VM86) mode. XFree86 may need vm86 mode for certain -+ video cards and will still work with this option enabled. The purpose -+ of the option is to prevent exploitation of emulation errors in -+ virtualization of vm86 mode like the one discovered in VMWare in 2009. -+ Nearly all users should be able to enable this option. -+ -+config GRKERNSEC_IO -+ bool "Disable privileged I/O" -+ default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER) -+ depends on X86 -+ select RTC_CLASS -+ select RTC_INTF_DEV -+ select RTC_DRV_CMOS -+ -+ help -+ If you say Y here, all ioperm and iopl calls will return an error. -+ Ioperm and iopl can be used to modify the running kernel. -+ Unfortunately, some programs need this access to operate properly, -+ the most notable of which are XFree86 and hwclock. hwclock can be -+ remedied by having RTC support in the kernel, so real-time -+ clock support is enabled if this option is enabled, to ensure -+ that hwclock operates correctly. XFree86 still will not -+ operate correctly with this option enabled, so DO NOT CHOOSE Y -+ IF YOU USE XFree86. If you use XFree86 and you still want to -+ protect your kernel against modification, use the RBAC system. -+ -+config GRKERNSEC_PROC_MEMMAP -+ bool "Harden ASLR against information leaks and entropy reduction" -+ default y if (GRKERNSEC_CONFIG_AUTO || PAX_NOEXEC || PAX_ASLR) -+ depends on PAX_NOEXEC || PAX_ASLR -+ help -+ If you say Y here, the /proc/<pid>/maps and /proc/<pid>/stat files will -+ give no information about the addresses of its mappings if -+ PaX features that rely on random addresses are enabled on the task. -+ In addition to sanitizing this information and disabling other -+ dangerous sources of information, this option causes reads of sensitive -+ /proc/<pid> entries where the file descriptor was opened in a different -+ task than the one performing the read. Such attempts are logged. -+ This option also limits argv/env strings for suid/sgid binaries -+ to 512KB to prevent a complete exhaustion of the stack entropy provided -+ by ASLR. Finally, it places an 8MB stack resource limit on suid/sgid -+ binaries to prevent alternative mmap layouts from being abused. -+ -+ If you use PaX it is essential that you say Y here as it closes up -+ several holes that make full ASLR useless locally. -+ -+config GRKERNSEC_BRUTE -+ bool "Deter exploit bruteforcing" -+ default y if GRKERNSEC_CONFIG_AUTO -+ help -+ If you say Y here, attempts to bruteforce exploits against forking -+ daemons such as apache or sshd, as well as against suid/sgid binaries -+ will be deterred. When a child of a forking daemon is killed by PaX -+ or crashes due to an illegal instruction or other suspicious signal, -+ the parent process will be delayed 30 seconds upon every subsequent -+ fork until the administrator is able to assess the situation and -+ restart the daemon. -+ In the suid/sgid case, the attempt is logged, the user has all their -+ processes terminated, and they are prevented from executing any further -+ processes for 15 minutes. -+ It is recommended that you also enable signal logging in the auditing -+ section so that logs are generated when a process triggers a suspicious -+ signal. -+ If the sysctl option is enabled, a sysctl option with name -+ "deter_bruteforce" is created. -+ -+ -+config GRKERNSEC_MODHARDEN -+ bool "Harden module auto-loading" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on MODULES -+ help -+ If you say Y here, module auto-loading in response to use of some -+ feature implemented by an unloaded module will be restricted to -+ root users. Enabling this option helps defend against attacks -+ by unprivileged users who abuse the auto-loading behavior to -+ cause a vulnerable module to load that is then exploited. -+ -+ If this option prevents a legitimate use of auto-loading for a -+ non-root user, the administrator can execute modprobe manually -+ with the exact name of the module mentioned in the alert log. -+ Alternatively, the administrator can add the module to the list -+ of modules loaded at boot by modifying init scripts. -+ -+ Modification of init scripts will most likely be needed on -+ Ubuntu servers with encrypted home directory support enabled, -+ as the first non-root user logging in will cause the ecb(aes), -+ ecb(aes)-all, cbc(aes), and cbc(aes)-all modules to be loaded. -+ -+config GRKERNSEC_HIDESYM -+ bool "Hide kernel symbols" -+ default y if GRKERNSEC_CONFIG_AUTO -+ help -+ If you say Y here, getting information on loaded modules, and -+ displaying all kernel symbols through a syscall will be restricted -+ to users with CAP_SYS_MODULE. For software compatibility reasons, -+ /proc/kallsyms will be restricted to the root user. The RBAC -+ system can hide that entry even from root. -+ -+ This option also prevents leaking of kernel addresses through -+ several /proc entries. -+ -+ Note that this option is only effective provided the following -+ conditions are met: -+ 1) The kernel using grsecurity is not precompiled by some distribution -+ 2) You have also enabled GRKERNSEC_DMESG -+ 3) You are using the RBAC system and hiding other files such as your -+ kernel image and System.map. Alternatively, enabling this option -+ causes the permissions on /boot, /lib/modules, and the kernel -+ source directory to change at compile time to prevent -+ reading by non-root users. -+ If the above conditions are met, this option will aid in providing a -+ useful protection against local kernel exploitation of overflows -+ and arbitrary read/write vulnerabilities. -+ -+config GRKERNSEC_KERN_LOCKOUT -+ bool "Active kernel exploit response" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on X86 || ARM || PPC || SPARC -+ help -+ If you say Y here, when a PaX alert is triggered due to suspicious -+ activity in the kernel (from KERNEXEC/UDEREF/USERCOPY) -+ or an OOPS occurs due to bad memory accesses, instead of just -+ terminating the offending process (and potentially allowing -+ a subsequent exploit from the same user), we will take one of two -+ actions: -+ If the user was root, we will panic the system -+ If the user was non-root, we will log the attempt, terminate -+ all processes owned by the user, then prevent them from creating -+ any new processes until the system is restarted -+ This deters repeated kernel exploitation/bruteforcing attempts -+ and is useful for later forensics. -+ -+endmenu -+menu "Role Based Access Control Options" -+depends on GRKERNSEC -+ -+config GRKERNSEC_RBAC_DEBUG -+ bool -+ -+config GRKERNSEC_NO_RBAC -+ bool "Disable RBAC system" -+ help -+ If you say Y here, the /dev/grsec device will be removed from the kernel, -+ preventing the RBAC system from being enabled. You should only say Y -+ here if you have no intention of using the RBAC system, so as to prevent -+ an attacker with root access from misusing the RBAC system to hide files -+ and processes when loadable module support and /dev/[k]mem have been -+ locked down. -+ -+config GRKERNSEC_ACL_HIDEKERN -+ bool "Hide kernel processes" -+ help -+ If you say Y here, all kernel threads will be hidden to all -+ processes but those whose subject has the "view hidden processes" -+ flag. -+ -+config GRKERNSEC_ACL_MAXTRIES -+ int "Maximum tries before password lockout" -+ default 3 -+ help -+ This option enforces the maximum number of times a user can attempt -+ to authorize themselves with the grsecurity RBAC system before being -+ denied the ability to attempt authorization again for a specified time. -+ The lower the number, the harder it will be to brute-force a password. -+ -+config GRKERNSEC_ACL_TIMEOUT -+ int "Time to wait after max password tries, in seconds" -+ default 30 -+ help -+ This option specifies the time the user must wait after attempting to -+ authorize to the RBAC system with the maximum number of invalid -+ passwords. The higher the number, the harder it will be to brute-force -+ a password. -+ -+endmenu -+menu "Filesystem Protections" -+depends on GRKERNSEC -+ -+config GRKERNSEC_PROC -+ bool "Proc restrictions" -+ default y if GRKERNSEC_CONFIG_AUTO -+ help -+ If you say Y here, the permissions of the /proc filesystem -+ will be altered to enhance system security and privacy. You MUST -+ choose either a user only restriction or a user and group restriction. -+ Depending upon the option you choose, you can either restrict users to -+ see only the processes they themselves run, or choose a group that can -+ view all processes and files normally restricted to root if you choose -+ the "restrict to user only" option. NOTE: If you're running identd or -+ ntpd as a non-root user, you will have to run it as the group you -+ specify here. -+ -+config GRKERNSEC_PROC_USER -+ bool "Restrict /proc to user only" -+ depends on GRKERNSEC_PROC -+ help -+ If you say Y here, non-root users will only be able to view their own -+ processes, and restricts them from viewing network-related information, -+ and viewing kernel symbol and module information. -+ -+config GRKERNSEC_PROC_USERGROUP -+ bool "Allow special group" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on GRKERNSEC_PROC && !GRKERNSEC_PROC_USER -+ help -+ If you say Y here, you will be able to select a group that will be -+ able to view all processes and network-related information. If you've -+ enabled GRKERNSEC_HIDESYM, kernel and symbol information may still -+ remain hidden. This option is useful if you want to run identd as -+ a non-root user. -+ -+config GRKERNSEC_PROC_GID -+ int "GID for special group" -+ depends on GRKERNSEC_PROC_USERGROUP -+ default 1001 -+ -+config GRKERNSEC_PROC_ADD -+ bool "Additional restrictions" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on GRKERNSEC_PROC_USER || GRKERNSEC_PROC_USERGROUP -+ help -+ If you say Y here, additional restrictions will be placed on -+ /proc that keep normal users from viewing device information and -+ slabinfo information that could be useful for exploits. -+ -+config GRKERNSEC_LINK -+ bool "Linking restrictions" -+ default y if GRKERNSEC_CONFIG_AUTO -+ help -+ If you say Y here, /tmp race exploits will be prevented, since users -+ will no longer be able to follow symlinks owned by other users in -+ world-writable +t directories (e.g. /tmp), unless the owner of the -+ symlink is the owner of the directory. users will also not be -+ able to hardlink to files they do not own. If the sysctl option is -+ enabled, a sysctl option with name "linking_restrictions" is created. -+ -+config GRKERNSEC_FIFO -+ bool "FIFO restrictions" -+ default y if GRKERNSEC_CONFIG_AUTO -+ help -+ If you say Y here, users will not be able to write to FIFOs they don't -+ own in world-writable +t directories (e.g. /tmp), unless the owner of -+ the FIFO is the same owner of the directory it's held in. If the sysctl -+ option is enabled, a sysctl option with name "fifo_restrictions" is -+ created. -+ -+config GRKERNSEC_SYSFS_RESTRICT -+ bool "Sysfs/debugfs restriction" -+ default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER) -+ depends on SYSFS -+ help -+ If you say Y here, sysfs (the pseudo-filesystem mounted at /sys) and -+ any filesystem normally mounted under it (e.g. debugfs) will be -+ mostly accessible only by root. These filesystems generally provide access -+ to hardware and debug information that isn't appropriate for unprivileged -+ users of the system. Sysfs and debugfs have also become a large source -+ of new vulnerabilities, ranging from infoleaks to local compromise. -+ There has been very little oversight with an eye toward security involved -+ in adding new exporters of information to these filesystems, so their -+ use is discouraged. -+ For reasons of compatibility, a few directories have been whitelisted -+ for access by non-root users: -+ /sys/fs/selinux -+ /sys/fs/fuse -+ /sys/devices/system/cpu -+ -+config GRKERNSEC_ROFS -+ bool "Runtime read-only mount protection" -+ help -+ If you say Y here, a sysctl option with name "romount_protect" will -+ be created. By setting this option to 1 at runtime, filesystems -+ will be protected in the following ways: -+ * No new writable mounts will be allowed -+ * Existing read-only mounts won't be able to be remounted read/write -+ * Write operations will be denied on all block devices -+ This option acts independently of grsec_lock: once it is set to 1, -+ it cannot be turned off. Therefore, please be mindful of the resulting -+ behavior if this option is enabled in an init script on a read-only -+ filesystem. This feature is mainly intended for secure embedded systems. -+ -+config GRKERNSEC_CHROOT -+ bool "Chroot jail restrictions" -+ default y if GRKERNSEC_CONFIG_AUTO -+ help -+ If you say Y here, you will be able to choose several options that will -+ make breaking out of a chrooted jail much more difficult. If you -+ encounter no software incompatibilities with the following options, it -+ is recommended that you enable each one. -+ -+config GRKERNSEC_CHROOT_MOUNT -+ bool "Deny mounts" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, processes inside a chroot will not be able to -+ mount or remount filesystems. If the sysctl option is enabled, a -+ sysctl option with name "chroot_deny_mount" is created. -+ -+config GRKERNSEC_CHROOT_DOUBLE -+ bool "Deny double-chroots" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, processes inside a chroot will not be able to chroot -+ again outside the chroot. This is a widely used method of breaking -+ out of a chroot jail and should not be allowed. If the sysctl -+ option is enabled, a sysctl option with name -+ "chroot_deny_chroot" is created. -+ -+config GRKERNSEC_CHROOT_PIVOT -+ bool "Deny pivot_root in chroot" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, processes inside a chroot will not be able to use -+ a function called pivot_root() that was introduced in Linux 2.3.41. It -+ works similar to chroot in that it changes the root filesystem. This -+ function could be misused in a chrooted process to attempt to break out -+ of the chroot, and therefore should not be allowed. If the sysctl -+ option is enabled, a sysctl option with name "chroot_deny_pivot" is -+ created. -+ -+config GRKERNSEC_CHROOT_CHDIR -+ bool "Enforce chdir(\"/\") on all chroots" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, the current working directory of all newly-chrooted -+ applications will be set to the the root directory of the chroot. -+ The man page on chroot(2) states: -+ Note that this call does not change the current working -+ directory, so that `.' can be outside the tree rooted at -+ `/'. In particular, the super-user can escape from a -+ `chroot jail' by doing `mkdir foo; chroot foo; cd ..'. -+ -+ It is recommended that you say Y here, since it's not known to break -+ any software. If the sysctl option is enabled, a sysctl option with -+ name "chroot_enforce_chdir" is created. -+ -+config GRKERNSEC_CHROOT_CHMOD -+ bool "Deny (f)chmod +s" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, processes inside a chroot will not be able to chmod -+ or fchmod files to make them have suid or sgid bits. This protects -+ against another published method of breaking a chroot. If the sysctl -+ option is enabled, a sysctl option with name "chroot_deny_chmod" is -+ created. -+ -+config GRKERNSEC_CHROOT_FCHDIR -+ bool "Deny fchdir out of chroot" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, a well-known method of breaking chroots by fchdir'ing -+ to a file descriptor of the chrooting process that points to a directory -+ outside the filesystem will be stopped. If the sysctl option -+ is enabled, a sysctl option with name "chroot_deny_fchdir" is created. -+ -+config GRKERNSEC_CHROOT_MKNOD -+ bool "Deny mknod" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, processes inside a chroot will not be allowed to -+ mknod. The problem with using mknod inside a chroot is that it -+ would allow an attacker to create a device entry that is the same -+ as one on the physical root of your system, which could range from -+ anything from the console device to a device for your harddrive (which -+ they could then use to wipe the drive or steal data). It is recommended -+ that you say Y here, unless you run into software incompatibilities. -+ If the sysctl option is enabled, a sysctl option with name -+ "chroot_deny_mknod" is created. -+ -+config GRKERNSEC_CHROOT_SHMAT -+ bool "Deny shmat() out of chroot" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, processes inside a chroot will not be able to attach -+ to shared memory segments that were created outside of the chroot jail. -+ It is recommended that you say Y here. If the sysctl option is enabled, -+ a sysctl option with name "chroot_deny_shmat" is created. -+ -+config GRKERNSEC_CHROOT_UNIX -+ bool "Deny access to abstract AF_UNIX sockets out of chroot" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, processes inside a chroot will not be able to -+ connect to abstract (meaning not belonging to a filesystem) Unix -+ domain sockets that were bound outside of a chroot. It is recommended -+ that you say Y here. If the sysctl option is enabled, a sysctl option -+ with name "chroot_deny_unix" is created. -+ -+config GRKERNSEC_CHROOT_FINDTASK -+ bool "Protect outside processes" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, processes inside a chroot will not be able to -+ kill, send signals with fcntl, ptrace, capget, getpgid, setpgid, -+ getsid, or view any process outside of the chroot. If the sysctl -+ option is enabled, a sysctl option with name "chroot_findtask" is -+ created. -+ -+config GRKERNSEC_CHROOT_NICE -+ bool "Restrict priority changes" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, processes inside a chroot will not be able to raise -+ the priority of processes in the chroot, or alter the priority of -+ processes outside the chroot. This provides more security than simply -+ removing CAP_SYS_NICE from the process' capability set. If the -+ sysctl option is enabled, a sysctl option with name "chroot_restrict_nice" -+ is created. -+ -+config GRKERNSEC_CHROOT_SYSCTL -+ bool "Deny sysctl writes" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, an attacker in a chroot will not be able to -+ write to sysctl entries, either by sysctl(2) or through a /proc -+ interface. It is strongly recommended that you say Y here. If the -+ sysctl option is enabled, a sysctl option with name -+ "chroot_deny_sysctl" is created. -+ -+config GRKERNSEC_CHROOT_CAPS -+ bool "Capability restrictions" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, the capabilities on all processes within a -+ chroot jail will be lowered to stop module insertion, raw i/o, -+ system and net admin tasks, rebooting the system, modifying immutable -+ files, modifying IPC owned by another, and changing the system time. -+ This is left an option because it can break some apps. Disable this -+ if your chrooted apps are having problems performing those kinds of -+ tasks. If the sysctl option is enabled, a sysctl option with -+ name "chroot_caps" is created. -+ -+endmenu -+menu "Kernel Auditing" -+depends on GRKERNSEC -+ -+config GRKERNSEC_AUDIT_GROUP -+ bool "Single group for auditing" -+ help -+ If you say Y here, the exec, chdir, and (un)mount logging features -+ will only operate on a group you specify. This option is recommended -+ if you only want to watch certain users instead of having a large -+ amount of logs from the entire system. If the sysctl option is enabled, -+ a sysctl option with name "audit_group" is created. -+ -+config GRKERNSEC_AUDIT_GID -+ int "GID for auditing" -+ depends on GRKERNSEC_AUDIT_GROUP -+ default 1007 -+ -+config GRKERNSEC_EXECLOG -+ bool "Exec logging" -+ help -+ If you say Y here, all execve() calls will be logged (since the -+ other exec*() calls are frontends to execve(), all execution -+ will be logged). Useful for shell-servers that like to keep track -+ of their users. If the sysctl option is enabled, a sysctl option with -+ name "exec_logging" is created. -+ WARNING: This option when enabled will produce a LOT of logs, especially -+ on an active system. -+ -+config GRKERNSEC_RESLOG -+ bool "Resource logging" -+ default y if GRKERNSEC_CONFIG_AUTO -+ help -+ If you say Y here, all attempts to overstep resource limits will -+ be logged with the resource name, the requested size, and the current -+ limit. It is highly recommended that you say Y here. If the sysctl -+ option is enabled, a sysctl option with name "resource_logging" is -+ created. If the RBAC system is enabled, the sysctl value is ignored. -+ -+config GRKERNSEC_CHROOT_EXECLOG -+ bool "Log execs within chroot" -+ help -+ If you say Y here, all executions inside a chroot jail will be logged -+ to syslog. This can cause a large amount of logs if certain -+ applications (eg. djb's daemontools) are installed on the system, and -+ is therefore left as an option. If the sysctl option is enabled, a -+ sysctl option with name "chroot_execlog" is created. -+ -+config GRKERNSEC_AUDIT_PTRACE -+ bool "Ptrace logging" -+ help -+ If you say Y here, all attempts to attach to a process via ptrace -+ will be logged. If the sysctl option is enabled, a sysctl option -+ with name "audit_ptrace" is created. -+ -+config GRKERNSEC_AUDIT_CHDIR -+ bool "Chdir logging" -+ help -+ If you say Y here, all chdir() calls will be logged. If the sysctl -+ option is enabled, a sysctl option with name "audit_chdir" is created. -+ -+config GRKERNSEC_AUDIT_MOUNT -+ bool "(Un)Mount logging" -+ help -+ If you say Y here, all mounts and unmounts will be logged. If the -+ sysctl option is enabled, a sysctl option with name "audit_mount" is -+ created. -+ -+config GRKERNSEC_SIGNAL -+ bool "Signal logging" -+ default y if GRKERNSEC_CONFIG_AUTO -+ help -+ If you say Y here, certain important signals will be logged, such as -+ SIGSEGV, which will as a result inform you of when a error in a program -+ occurred, which in some cases could mean a possible exploit attempt. -+ If the sysctl option is enabled, a sysctl option with name -+ "signal_logging" is created. -+ -+config GRKERNSEC_FORKFAIL -+ bool "Fork failure logging" -+ help -+ If you say Y here, all failed fork() attempts will be logged. -+ This could suggest a fork bomb, or someone attempting to overstep -+ their process limit. If the sysctl option is enabled, a sysctl option -+ with name "forkfail_logging" is created. -+ -+config GRKERNSEC_TIME -+ bool "Time change logging" -+ default y if GRKERNSEC_CONFIG_AUTO -+ help -+ If you say Y here, any changes of the system clock will be logged. -+ If the sysctl option is enabled, a sysctl option with name -+ "timechange_logging" is created. -+ -+config GRKERNSEC_PROC_IPADDR -+ bool "/proc/<pid>/ipaddr support" -+ default y if GRKERNSEC_CONFIG_AUTO -+ help -+ If you say Y here, a new entry will be added to each /proc/<pid> -+ directory that contains the IP address of the person using the task. -+ The IP is carried across local TCP and AF_UNIX stream sockets. -+ This information can be useful for IDS/IPSes to perform remote response -+ to a local attack. The entry is readable by only the owner of the -+ process (and root if he has CAP_DAC_OVERRIDE, which can be removed via -+ the RBAC system), and thus does not create privacy concerns. -+ -+config GRKERNSEC_RWXMAP_LOG -+ bool 'Denied RWX mmap/mprotect logging' -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on PAX_MPROTECT && !PAX_EMUPLT && !PAX_EMUSIGRT -+ help -+ If you say Y here, calls to mmap() and mprotect() with explicit -+ usage of PROT_WRITE and PROT_EXEC together will be logged when -+ denied by the PAX_MPROTECT feature. If the sysctl option is -+ enabled, a sysctl option with name "rwxmap_logging" is created. -+ -+config GRKERNSEC_AUDIT_TEXTREL -+ bool 'ELF text relocations logging (READ HELP)' -+ depends on PAX_MPROTECT -+ help -+ If you say Y here, text relocations will be logged with the filename -+ of the offending library or binary. The purpose of the feature is -+ to help Linux distribution developers get rid of libraries and -+ binaries that need text relocations which hinder the future progress -+ of PaX. Only Linux distribution developers should say Y here, and -+ never on a production machine, as this option creates an information -+ leak that could aid an attacker in defeating the randomization of -+ a single memory region. If the sysctl option is enabled, a sysctl -+ option with name "audit_textrel" is created. -+ -+endmenu -+ -+menu "Executable Protections" -+depends on GRKERNSEC -+ -+config GRKERNSEC_DMESG -+ bool "Dmesg(8) restriction" -+ default y if GRKERNSEC_CONFIG_AUTO -+ help -+ If you say Y here, non-root users will not be able to use dmesg(8) -+ to view up to the last 4kb of messages in the kernel's log buffer. -+ The kernel's log buffer often contains kernel addresses and other -+ identifying information useful to an attacker in fingerprinting a -+ system for a targeted exploit. -+ If the sysctl option is enabled, a sysctl option with name "dmesg" is -+ created. -+ -+config GRKERNSEC_HARDEN_PTRACE -+ bool "Deter ptrace-based process snooping" -+ default y if GRKERNSEC_CONFIG_AUTO -+ help -+ If you say Y here, TTY sniffers and other malicious monitoring -+ programs implemented through ptrace will be defeated. If you -+ have been using the RBAC system, this option has already been -+ enabled for several years for all users, with the ability to make -+ fine-grained exceptions. -+ -+ This option only affects the ability of non-root users to ptrace -+ processes that are not a descendent of the ptracing process. -+ This means that strace ./binary and gdb ./binary will still work, -+ but attaching to arbitrary processes will not. If the sysctl -+ option is enabled, a sysctl option with name "harden_ptrace" is -+ created. -+ -+config GRKERNSEC_PTRACE_READEXEC -+ bool "Require read access to ptrace sensitive binaries" -+ default y if GRKERNSEC_CONFIG_AUTO -+ help -+ If you say Y here, unprivileged users will not be able to ptrace unreadable -+ binaries. This option is useful in environments that -+ remove the read bits (e.g. file mode 4711) from suid binaries to -+ prevent infoleaking of their contents. This option adds -+ consistency to the use of that file mode, as the binary could normally -+ be read out when run without privileges while ptracing. -+ -+ If the sysctl option is enabled, a sysctl option with name "ptrace_readexec" -+ is created. -+ -+config GRKERNSEC_SETXID -+ bool "Enforce consistent multithreaded privileges" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on (X86 || SPARC64 || PPC || ARM || MIPS) -+ help -+ If you say Y here, a change from a root uid to a non-root uid -+ in a multithreaded application will cause the resulting uids, -+ gids, supplementary groups, and capabilities in that thread -+ to be propagated to the other threads of the process. In most -+ cases this is unnecessary, as glibc will emulate this behavior -+ on behalf of the application. Other libcs do not act in the -+ same way, allowing the other threads of the process to continue -+ running with root privileges. If the sysctl option is enabled, -+ a sysctl option with name "consistent_setxid" is created. -+ -+config GRKERNSEC_TPE -+ bool "Trusted Path Execution (TPE)" -+ default y if GRKERNSEC_CONFIG_AUTO -+ help -+ If you say Y here, you will be able to choose a gid to add to the -+ supplementary groups of users you want to mark as "untrusted." -+ These users will not be able to execute any files that are not in -+ root-owned directories writable only by root. If the sysctl option -+ is enabled, a sysctl option with name "tpe" is created. -+ -+config GRKERNSEC_TPE_ALL -+ bool "Partially restrict all non-root users" -+ depends on GRKERNSEC_TPE -+ help -+ If you say Y here, all non-root users will be covered under -+ a weaker TPE restriction. This is separate from, and in addition to, -+ the main TPE options that you have selected elsewhere. Thus, if a -+ "trusted" GID is chosen, this restriction applies to even that GID. -+ Under this restriction, all non-root users will only be allowed to -+ execute files in directories they own that are not group or -+ world-writable, or in directories owned by root and writable only by -+ root. If the sysctl option is enabled, a sysctl option with name -+ "tpe_restrict_all" is created. -+ -+config GRKERNSEC_TPE_INVERT -+ bool "Invert GID option" -+ depends on GRKERNSEC_TPE -+ help -+ If you say Y here, the group you specify in the TPE configuration will -+ decide what group TPE restrictions will be *disabled* for. This -+ option is useful if you want TPE restrictions to be applied to most -+ users on the system. If the sysctl option is enabled, a sysctl option -+ with name "tpe_invert" is created. Unlike other sysctl options, this -+ entry will default to on for backward-compatibility. -+ -+config GRKERNSEC_TPE_GID -+ int "GID for untrusted users" -+ depends on GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT -+ default 1005 -+ help -+ Setting this GID determines what group TPE restrictions will be -+ *enabled* for. If the sysctl option is enabled, a sysctl option -+ with name "tpe_gid" is created. -+ -+config GRKERNSEC_TPE_GID -+ int "GID for trusted users" -+ depends on GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT -+ default 1005 -+ help -+ Setting this GID determines what group TPE restrictions will be -+ *disabled* for. If the sysctl option is enabled, a sysctl option -+ with name "tpe_gid" is created. -+ -+endmenu -+menu "Network Protections" -+depends on GRKERNSEC -+ -+config GRKERNSEC_RANDNET -+ bool "Larger entropy pools" -+ default y if GRKERNSEC_CONFIG_AUTO -+ help -+ If you say Y here, the entropy pools used for many features of Linux -+ and grsecurity will be doubled in size. Since several grsecurity -+ features use additional randomness, it is recommended that you say Y -+ here. Saying Y here has a similar effect as modifying -+ /proc/sys/kernel/random/poolsize. -+ -+config GRKERNSEC_BLACKHOLE -+ bool "TCP/UDP blackhole and LAST_ACK DoS prevention" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on NET -+ help -+ If you say Y here, neither TCP resets nor ICMP -+ destination-unreachable packets will be sent in response to packets -+ sent to ports for which no associated listening process exists. -+ This feature supports both IPV4 and IPV6 and exempts the -+ loopback interface from blackholing. Enabling this feature -+ makes a host more resilient to DoS attacks and reduces network -+ visibility against scanners. -+ -+ The blackhole feature as-implemented is equivalent to the FreeBSD -+ blackhole feature, as it prevents RST responses to all packets, not -+ just SYNs. Under most application behavior this causes no -+ problems, but applications (like haproxy) may not close certain -+ connections in a way that cleanly terminates them on the remote -+ end, leaving the remote host in LAST_ACK state. Because of this -+ side-effect and to prevent intentional LAST_ACK DoSes, this -+ feature also adds automatic mitigation against such attacks. -+ The mitigation drastically reduces the amount of time a socket -+ can spend in LAST_ACK state. If you're using haproxy and not -+ all servers it connects to have this option enabled, consider -+ disabling this feature on the haproxy host. -+ -+ If the sysctl option is enabled, two sysctl options with names -+ "ip_blackhole" and "lastack_retries" will be created. -+ While "ip_blackhole" takes the standard zero/non-zero on/off -+ toggle, "lastack_retries" uses the same kinds of values as -+ "tcp_retries1" and "tcp_retries2". The default value of 4 -+ prevents a socket from lasting more than 45 seconds in LAST_ACK -+ state. -+ -+config GRKERNSEC_SOCKET -+ bool "Socket restrictions" -+ depends on NET -+ help -+ If you say Y here, you will be able to choose from several options. -+ If you assign a GID on your system and add it to the supplementary -+ groups of users you want to restrict socket access to, this patch -+ will perform up to three things, based on the option(s) you choose. -+ -+config GRKERNSEC_SOCKET_ALL -+ bool "Deny any sockets to group" -+ depends on GRKERNSEC_SOCKET -+ help -+ If you say Y here, you will be able to choose a GID of whose users will -+ be unable to connect to other hosts from your machine or run server -+ applications from your machine. If the sysctl option is enabled, a -+ sysctl option with name "socket_all" is created. -+ -+config GRKERNSEC_SOCKET_ALL_GID -+ int "GID to deny all sockets for" -+ depends on GRKERNSEC_SOCKET_ALL -+ default 1004 -+ help -+ Here you can choose the GID to disable socket access for. Remember to -+ add the users you want socket access disabled for to the GID -+ specified here. If the sysctl option is enabled, a sysctl option -+ with name "socket_all_gid" is created. -+ -+config GRKERNSEC_SOCKET_CLIENT -+ bool "Deny client sockets to group" -+ depends on GRKERNSEC_SOCKET -+ help -+ If you say Y here, you will be able to choose a GID of whose users will -+ be unable to connect to other hosts from your machine, but will be -+ able to run servers. If this option is enabled, all users in the group -+ you specify will have to use passive mode when initiating ftp transfers -+ from the shell on your machine. If the sysctl option is enabled, a -+ sysctl option with name "socket_client" is created. -+ -+config GRKERNSEC_SOCKET_CLIENT_GID -+ int "GID to deny client sockets for" -+ depends on GRKERNSEC_SOCKET_CLIENT -+ default 1003 -+ help -+ Here you can choose the GID to disable client socket access for. -+ Remember to add the users you want client socket access disabled for to -+ the GID specified here. If the sysctl option is enabled, a sysctl -+ option with name "socket_client_gid" is created. -+ -+config GRKERNSEC_SOCKET_SERVER -+ bool "Deny server sockets to group" -+ depends on GRKERNSEC_SOCKET -+ help -+ If you say Y here, you will be able to choose a GID of whose users will -+ be unable to run server applications from your machine. If the sysctl -+ option is enabled, a sysctl option with name "socket_server" is created. -+ -+config GRKERNSEC_SOCKET_SERVER_GID -+ int "GID to deny server sockets for" -+ depends on GRKERNSEC_SOCKET_SERVER -+ default 1002 -+ help -+ Here you can choose the GID to disable server socket access for. -+ Remember to add the users you want server socket access disabled for to -+ the GID specified here. If the sysctl option is enabled, a sysctl -+ option with name "socket_server_gid" is created. -+ -+endmenu -+menu "Sysctl Support" -+depends on GRKERNSEC && SYSCTL -+ -+config GRKERNSEC_SYSCTL -+ bool "Sysctl support" -+ default y if GRKERNSEC_CONFIG_AUTO -+ help -+ If you say Y here, you will be able to change the options that -+ grsecurity runs with at bootup, without having to recompile your -+ kernel. You can echo values to files in /proc/sys/kernel/grsecurity -+ to enable (1) or disable (0) various features. All the sysctl entries -+ are mutable until the "grsec_lock" entry is set to a non-zero value. -+ All features enabled in the kernel configuration are disabled at boot -+ if you do not say Y to the "Turn on features by default" option. -+ All options should be set at startup, and the grsec_lock entry should -+ be set to a non-zero value after all the options are set. -+ *THIS IS EXTREMELY IMPORTANT* -+ -+config GRKERNSEC_SYSCTL_DISTRO -+ bool "Extra sysctl support for distro makers (READ HELP)" -+ depends on GRKERNSEC_SYSCTL && GRKERNSEC_IO -+ help -+ If you say Y here, additional sysctl options will be created -+ for features that affect processes running as root. Therefore, -+ it is critical when using this option that the grsec_lock entry be -+ enabled after boot. Only distros with prebuilt kernel packages -+ with this option enabled that can ensure grsec_lock is enabled -+ after boot should use this option. -+ *Failure to set grsec_lock after boot makes all grsec features -+ this option covers useless* -+ -+ Currently this option creates the following sysctl entries: -+ "Disable Privileged I/O": "disable_priv_io" -+ -+config GRKERNSEC_SYSCTL_ON -+ bool "Turn on features by default" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on GRKERNSEC_SYSCTL -+ help -+ If you say Y here, instead of having all features enabled in the -+ kernel configuration disabled at boot time, the features will be -+ enabled at boot time. It is recommended you say Y here unless -+ there is some reason you would want all sysctl-tunable features to -+ be disabled by default. As mentioned elsewhere, it is important -+ to enable the grsec_lock entry once you have finished modifying -+ the sysctl entries. -+ -+endmenu -+menu "Logging Options" -+depends on GRKERNSEC -+ -+config GRKERNSEC_FLOODTIME -+ int "Seconds in between log messages (minimum)" -+ default 10 -+ help -+ This option allows you to enforce the number of seconds between -+ grsecurity log messages. The default should be suitable for most -+ people, however, if you choose to change it, choose a value small enough -+ to allow informative logs to be produced, but large enough to -+ prevent flooding. -+ -+config GRKERNSEC_FLOODBURST -+ int "Number of messages in a burst (maximum)" -+ default 6 -+ help -+ This option allows you to choose the maximum number of messages allowed -+ within the flood time interval you chose in a separate option. The -+ default should be suitable for most people, however if you find that -+ many of your logs are being interpreted as flooding, you may want to -+ raise this value. -+ -+endmenu -diff --git a/grsecurity/Makefile b/grsecurity/Makefile -new file mode 100644 -index 0000000..1b9afa9 ---- /dev/null -+++ b/grsecurity/Makefile -@@ -0,0 +1,38 @@ -+# grsecurity's ACL system was originally written in 2001 by Michael Dalton -+# during 2001-2009 it has been completely redesigned by Brad Spengler -+# into an RBAC system -+# -+# All code in this directory and various hooks inserted throughout the kernel -+# are copyright Brad Spengler - Open Source Security, Inc., and released -+# under the GPL v2 or higher -+ -+KBUILD_CFLAGS += -Werror -+ -+obj-y = grsec_chdir.o grsec_chroot.o grsec_exec.o grsec_fifo.o grsec_fork.o \ -+ grsec_mount.o grsec_sig.o grsec_sysctl.o \ -+ grsec_time.o grsec_tpe.o grsec_link.o grsec_pax.o grsec_ptrace.o -+ -+obj-$(CONFIG_GRKERNSEC) += grsec_init.o grsum.o gracl.o gracl_segv.o \ -+ gracl_cap.o gracl_alloc.o gracl_shm.o grsec_mem.o gracl_fs.o \ -+ gracl_learn.o grsec_log.o -+obj-$(CONFIG_GRKERNSEC_RESLOG) += gracl_res.o -+ -+ifdef CONFIG_NET -+obj-y += grsec_sock.o -+obj-$(CONFIG_GRKERNSEC) += gracl_ip.o -+endif -+ -+ifndef CONFIG_GRKERNSEC -+obj-y += grsec_disabled.o -+endif -+ -+ifdef CONFIG_GRKERNSEC_HIDESYM -+extra-y := grsec_hidesym.o -+$(obj)/grsec_hidesym.o: -+ @-chmod -f 500 /boot -+ @-chmod -f 500 /lib/modules -+ @-chmod -f 500 /lib64/modules -+ @-chmod -f 500 /lib32/modules -+ @-chmod -f 700 . -+ @echo ' grsec: protected kernel image paths' -+endif -diff --git a/grsecurity/gracl.c b/grsecurity/gracl.c -new file mode 100644 -index 0000000..00b6c54 ---- /dev/null -+++ b/grsecurity/gracl.c -@@ -0,0 +1,4012 @@ -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/sched.h> -+#include <linux/mm.h> -+#include <linux/file.h> -+#include <linux/fs.h> -+#include <linux/namei.h> -+#include <linux/mount.h> -+#include <linux/tty.h> -+#include <linux/proc_fs.h> -+#include <linux/lglock.h> -+#include <linux/slab.h> -+#include <linux/vmalloc.h> -+#include <linux/types.h> -+#include <linux/sysctl.h> -+#include <linux/netdevice.h> -+#include <linux/ptrace.h> -+#include <linux/gracl.h> -+#include <linux/gralloc.h> -+#include <linux/security.h> -+#include <linux/grinternal.h> -+#include <linux/pid_namespace.h> -+#include <linux/fdtable.h> -+#include <linux/percpu.h> -+#include "../fs/mount.h" -+ -+#include <asm/uaccess.h> -+#include <asm/errno.h> -+#include <asm/mman.h> -+ -+static struct acl_role_db acl_role_set; -+static struct name_db name_set; -+static struct inodev_db inodev_set; -+ -+/* for keeping track of userspace pointers used for subjects, so we -+ can share references in the kernel as well -+*/ -+ -+static struct path real_root; -+ -+static struct acl_subj_map_db subj_map_set; -+ -+static struct acl_role_label *default_role; -+ -+static struct acl_role_label *role_list; -+ -+static u16 acl_sp_role_value; -+ -+extern char *gr_shared_page[4]; -+static DEFINE_MUTEX(gr_dev_mutex); -+DEFINE_RWLOCK(gr_inode_lock); -+ -+struct gr_arg *gr_usermode; -+ -+static unsigned int gr_status __read_only = GR_STATUS_INIT; -+ -+extern int chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum); -+extern void gr_clear_learn_entries(void); -+ -+#ifdef CONFIG_GRKERNSEC_RESLOG -+extern void gr_log_resource(const struct task_struct *task, -+ const int res, const unsigned long wanted, const int gt); -+#endif -+ -+unsigned char *gr_system_salt; -+unsigned char *gr_system_sum; -+ -+static struct sprole_pw **acl_special_roles = NULL; -+static __u16 num_sprole_pws = 0; -+ -+static struct acl_role_label *kernel_role = NULL; -+ -+static unsigned int gr_auth_attempts = 0; -+static unsigned long gr_auth_expires = 0UL; -+ -+#ifdef CONFIG_NET -+extern struct vfsmount *sock_mnt; -+#endif -+ -+extern struct vfsmount *pipe_mnt; -+extern struct vfsmount *shm_mnt; -+#ifdef CONFIG_HUGETLBFS -+extern struct vfsmount *hugetlbfs_vfsmount; -+#endif -+ -+static struct acl_object_label *fakefs_obj_rw; -+static struct acl_object_label *fakefs_obj_rwx; -+ -+extern int gr_init_uidset(void); -+extern void gr_free_uidset(void); -+extern void gr_remove_uid(uid_t uid); -+extern int gr_find_uid(uid_t uid); -+ -+DECLARE_BRLOCK(vfsmount_lock); -+ -+__inline__ int -+gr_acl_is_enabled(void) -+{ -+ return (gr_status & GR_READY); -+} -+ -+#ifdef CONFIG_BTRFS_FS -+extern dev_t get_btrfs_dev_from_inode(struct inode *inode); -+extern int btrfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat); -+#endif -+ -+static inline dev_t __get_dev(const struct dentry *dentry) -+{ -+#ifdef CONFIG_BTRFS_FS -+ if (dentry->d_inode->i_op && dentry->d_inode->i_op->getattr == &btrfs_getattr) -+ return get_btrfs_dev_from_inode(dentry->d_inode); -+ else -+#endif -+ return dentry->d_inode->i_sb->s_dev; -+} -+ -+dev_t gr_get_dev_from_dentry(struct dentry *dentry) -+{ -+ return __get_dev(dentry); -+} -+ -+static char gr_task_roletype_to_char(struct task_struct *task) -+{ -+ switch (task->role->roletype & -+ (GR_ROLE_DEFAULT | GR_ROLE_USER | GR_ROLE_GROUP | -+ GR_ROLE_SPECIAL)) { -+ case GR_ROLE_DEFAULT: -+ return 'D'; -+ case GR_ROLE_USER: -+ return 'U'; -+ case GR_ROLE_GROUP: -+ return 'G'; -+ case GR_ROLE_SPECIAL: -+ return 'S'; -+ } -+ -+ return 'X'; -+} -+ -+char gr_roletype_to_char(void) -+{ -+ return gr_task_roletype_to_char(current); -+} -+ -+__inline__ int -+gr_acl_tpe_check(void) -+{ -+ if (unlikely(!(gr_status & GR_READY))) -+ return 0; -+ if (current->role->roletype & GR_ROLE_TPE) -+ return 1; -+ else -+ return 0; -+} -+ -+int -+gr_handle_rawio(const struct inode *inode) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS -+ if (inode && S_ISBLK(inode->i_mode) && -+ grsec_enable_chroot_caps && proc_is_chrooted(current) && -+ !capable(CAP_SYS_RAWIO)) -+ return 1; -+#endif -+ return 0; -+} -+ -+static int -+gr_streq(const char *a, const char *b, const unsigned int lena, const unsigned int lenb) -+{ -+ if (likely(lena != lenb)) -+ return 0; -+ -+ return !memcmp(a, b, lena); -+} -+ -+static int prepend(char **buffer, int *buflen, const char *str, int namelen) -+{ -+ *buflen -= namelen; -+ if (*buflen < 0) -+ return -ENAMETOOLONG; -+ *buffer -= namelen; -+ memcpy(*buffer, str, namelen); -+ return 0; -+} -+ -+static int prepend_name(char **buffer, int *buflen, struct qstr *name) -+{ -+ return prepend(buffer, buflen, name->name, name->len); -+} -+ -+static int prepend_path(const struct path *path, struct path *root, -+ char **buffer, int *buflen) -+{ -+ struct dentry *dentry = path->dentry; -+ struct vfsmount *vfsmnt = path->mnt; -+ struct mount *mnt = real_mount(vfsmnt); -+ bool slash = false; -+ int error = 0; -+ -+ while (dentry != root->dentry || vfsmnt != root->mnt) { -+ struct dentry * parent; -+ -+ if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) { -+ /* Global root? */ -+ if (!mnt_has_parent(mnt)) { -+ goto out; -+ } -+ dentry = mnt->mnt_mountpoint; -+ mnt = mnt->mnt_parent; -+ vfsmnt = &mnt->mnt; -+ continue; -+ } -+ parent = dentry->d_parent; -+ prefetch(parent); -+ spin_lock(&dentry->d_lock); -+ error = prepend_name(buffer, buflen, &dentry->d_name); -+ spin_unlock(&dentry->d_lock); -+ if (!error) -+ error = prepend(buffer, buflen, "/", 1); -+ if (error) -+ break; -+ -+ slash = true; -+ dentry = parent; -+ } -+ -+out: -+ if (!error && !slash) -+ error = prepend(buffer, buflen, "/", 1); -+ -+ return error; -+} -+ -+/* this must be called with vfsmount_lock and rename_lock held */ -+ -+static char *__our_d_path(const struct path *path, struct path *root, -+ char *buf, int buflen) -+{ -+ char *res = buf + buflen; -+ int error; -+ -+ prepend(&res, &buflen, "\0", 1); -+ error = prepend_path(path, root, &res, &buflen); -+ if (error) -+ return ERR_PTR(error); -+ -+ return res; -+} -+ -+static char * -+gen_full_path(struct path *path, struct path *root, char *buf, int buflen) -+{ -+ char *retval; -+ -+ retval = __our_d_path(path, root, buf, buflen); -+ if (unlikely(IS_ERR(retval))) -+ retval = strcpy(buf, "<path too long>"); -+ else if (unlikely(retval[1] == '/' && retval[2] == '\0')) -+ retval[1] = '\0'; -+ -+ return retval; -+} -+ -+static char * -+__d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt, -+ char *buf, int buflen) -+{ -+ struct path path; -+ char *res; -+ -+ path.dentry = (struct dentry *)dentry; -+ path.mnt = (struct vfsmount *)vfsmnt; -+ -+ /* we can use real_root.dentry, real_root.mnt, because this is only called -+ by the RBAC system */ -+ res = gen_full_path(&path, &real_root, buf, buflen); -+ -+ return res; -+} -+ -+static char * -+d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt, -+ char *buf, int buflen) -+{ -+ char *res; -+ struct path path; -+ struct path root; -+ struct task_struct *reaper = init_pid_ns.child_reaper; -+ -+ path.dentry = (struct dentry *)dentry; -+ path.mnt = (struct vfsmount *)vfsmnt; -+ -+ /* we can't use real_root.dentry, real_root.mnt, because they belong only to the RBAC system */ -+ get_fs_root(reaper->fs, &root); -+ -+ write_seqlock(&rename_lock); -+ br_read_lock(vfsmount_lock); -+ res = gen_full_path(&path, &root, buf, buflen); -+ br_read_unlock(vfsmount_lock); -+ write_sequnlock(&rename_lock); -+ -+ path_put(&root); -+ return res; -+} -+ -+static char * -+gr_to_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ char *ret; -+ write_seqlock(&rename_lock); -+ br_read_lock(vfsmount_lock); -+ ret = __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()), -+ PAGE_SIZE); -+ br_read_unlock(vfsmount_lock); -+ write_sequnlock(&rename_lock); -+ return ret; -+} -+ -+static char * -+gr_to_proc_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ char *ret; -+ char *buf; -+ int buflen; -+ -+ write_seqlock(&rename_lock); -+ br_read_lock(vfsmount_lock); -+ buf = per_cpu_ptr(gr_shared_page[0], smp_processor_id()); -+ ret = __d_real_path(dentry, mnt, buf, PAGE_SIZE - 6); -+ buflen = (int)(ret - buf); -+ if (buflen >= 5) -+ prepend(&ret, &buflen, "/proc", 5); -+ else -+ ret = strcpy(buf, "<path too long>"); -+ br_read_unlock(vfsmount_lock); -+ write_sequnlock(&rename_lock); -+ return ret; -+} -+ -+char * -+gr_to_filename_nolock(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()), -+ PAGE_SIZE); -+} -+ -+char * -+gr_to_filename(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()), -+ PAGE_SIZE); -+} -+ -+char * -+gr_to_filename1(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[1], smp_processor_id()), -+ PAGE_SIZE); -+} -+ -+char * -+gr_to_filename2(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[2], smp_processor_id()), -+ PAGE_SIZE); -+} -+ -+char * -+gr_to_filename3(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[3], smp_processor_id()), -+ PAGE_SIZE); -+} -+ -+__inline__ __u32 -+to_gr_audit(const __u32 reqmode) -+{ -+ /* masks off auditable permission flags, then shifts them to create -+ auditing flags, and adds the special case of append auditing if -+ we're requesting write */ -+ return (((reqmode & ~GR_AUDITS) << 10) | ((reqmode & GR_WRITE) ? GR_AUDIT_APPEND : 0)); -+} -+ -+struct acl_subject_label * -+lookup_subject_map(const struct acl_subject_label *userp) -+{ -+ unsigned int index = shash(userp, subj_map_set.s_size); -+ struct subject_map *match; -+ -+ match = subj_map_set.s_hash[index]; -+ -+ while (match && match->user != userp) -+ match = match->next; -+ -+ if (match != NULL) -+ return match->kernel; -+ else -+ return NULL; -+} -+ -+static void -+insert_subj_map_entry(struct subject_map *subjmap) -+{ -+ unsigned int index = shash(subjmap->user, subj_map_set.s_size); -+ struct subject_map **curr; -+ -+ subjmap->prev = NULL; -+ -+ curr = &subj_map_set.s_hash[index]; -+ if (*curr != NULL) -+ (*curr)->prev = subjmap; -+ -+ subjmap->next = *curr; -+ *curr = subjmap; -+ -+ return; -+} -+ -+static struct acl_role_label * -+lookup_acl_role_label(const struct task_struct *task, const uid_t uid, -+ const gid_t gid) -+{ -+ unsigned int index = rhash(uid, GR_ROLE_USER, acl_role_set.r_size); -+ struct acl_role_label *match; -+ struct role_allowed_ip *ipp; -+ unsigned int x; -+ u32 curr_ip = task->signal->curr_ip; -+ -+ task->signal->saved_ip = curr_ip; -+ -+ match = acl_role_set.r_hash[index]; -+ -+ while (match) { -+ if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_USER)) == (GR_ROLE_DOMAIN | GR_ROLE_USER)) { -+ for (x = 0; x < match->domain_child_num; x++) { -+ if (match->domain_children[x] == uid) -+ goto found; -+ } -+ } else if (match->uidgid == uid && match->roletype & GR_ROLE_USER) -+ break; -+ match = match->next; -+ } -+found: -+ if (match == NULL) { -+ try_group: -+ index = rhash(gid, GR_ROLE_GROUP, acl_role_set.r_size); -+ match = acl_role_set.r_hash[index]; -+ -+ while (match) { -+ if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) == (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) { -+ for (x = 0; x < match->domain_child_num; x++) { -+ if (match->domain_children[x] == gid) -+ goto found2; -+ } -+ } else if (match->uidgid == gid && match->roletype & GR_ROLE_GROUP) -+ break; -+ match = match->next; -+ } -+found2: -+ if (match == NULL) -+ match = default_role; -+ if (match->allowed_ips == NULL) -+ return match; -+ else { -+ for (ipp = match->allowed_ips; ipp; ipp = ipp->next) { -+ if (likely -+ ((ntohl(curr_ip) & ipp->netmask) == -+ (ntohl(ipp->addr) & ipp->netmask))) -+ return match; -+ } -+ match = default_role; -+ } -+ } else if (match->allowed_ips == NULL) { -+ return match; -+ } else { -+ for (ipp = match->allowed_ips; ipp; ipp = ipp->next) { -+ if (likely -+ ((ntohl(curr_ip) & ipp->netmask) == -+ (ntohl(ipp->addr) & ipp->netmask))) -+ return match; -+ } -+ goto try_group; -+ } -+ -+ return match; -+} -+ -+struct acl_subject_label * -+lookup_acl_subj_label(const ino_t ino, const dev_t dev, -+ const struct acl_role_label *role) -+{ -+ unsigned int index = fhash(ino, dev, role->subj_hash_size); -+ struct acl_subject_label *match; -+ -+ match = role->subj_hash[index]; -+ -+ while (match && (match->inode != ino || match->device != dev || -+ (match->mode & GR_DELETED))) { -+ match = match->next; -+ } -+ -+ if (match && !(match->mode & GR_DELETED)) -+ return match; -+ else -+ return NULL; -+} -+ -+struct acl_subject_label * -+lookup_acl_subj_label_deleted(const ino_t ino, const dev_t dev, -+ const struct acl_role_label *role) -+{ -+ unsigned int index = fhash(ino, dev, role->subj_hash_size); -+ struct acl_subject_label *match; -+ -+ match = role->subj_hash[index]; -+ -+ while (match && (match->inode != ino || match->device != dev || -+ !(match->mode & GR_DELETED))) { -+ match = match->next; -+ } -+ -+ if (match && (match->mode & GR_DELETED)) -+ return match; -+ else -+ return NULL; -+} -+ -+static struct acl_object_label * -+lookup_acl_obj_label(const ino_t ino, const dev_t dev, -+ const struct acl_subject_label *subj) -+{ -+ unsigned int index = fhash(ino, dev, subj->obj_hash_size); -+ struct acl_object_label *match; -+ -+ match = subj->obj_hash[index]; -+ -+ while (match && (match->inode != ino || match->device != dev || -+ (match->mode & GR_DELETED))) { -+ match = match->next; -+ } -+ -+ if (match && !(match->mode & GR_DELETED)) -+ return match; -+ else -+ return NULL; -+} -+ -+static struct acl_object_label * -+lookup_acl_obj_label_create(const ino_t ino, const dev_t dev, -+ const struct acl_subject_label *subj) -+{ -+ unsigned int index = fhash(ino, dev, subj->obj_hash_size); -+ struct acl_object_label *match; -+ -+ match = subj->obj_hash[index]; -+ -+ while (match && (match->inode != ino || match->device != dev || -+ !(match->mode & GR_DELETED))) { -+ match = match->next; -+ } -+ -+ if (match && (match->mode & GR_DELETED)) -+ return match; -+ -+ match = subj->obj_hash[index]; -+ -+ while (match && (match->inode != ino || match->device != dev || -+ (match->mode & GR_DELETED))) { -+ match = match->next; -+ } -+ -+ if (match && !(match->mode & GR_DELETED)) -+ return match; -+ else -+ return NULL; -+} -+ -+static struct name_entry * -+lookup_name_entry(const char *name) -+{ -+ unsigned int len = strlen(name); -+ unsigned int key = full_name_hash(name, len); -+ unsigned int index = key % name_set.n_size; -+ struct name_entry *match; -+ -+ match = name_set.n_hash[index]; -+ -+ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len))) -+ match = match->next; -+ -+ return match; -+} -+ -+static struct name_entry * -+lookup_name_entry_create(const char *name) -+{ -+ unsigned int len = strlen(name); -+ unsigned int key = full_name_hash(name, len); -+ unsigned int index = key % name_set.n_size; -+ struct name_entry *match; -+ -+ match = name_set.n_hash[index]; -+ -+ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) || -+ !match->deleted)) -+ match = match->next; -+ -+ if (match && match->deleted) -+ return match; -+ -+ match = name_set.n_hash[index]; -+ -+ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) || -+ match->deleted)) -+ match = match->next; -+ -+ if (match && !match->deleted) -+ return match; -+ else -+ return NULL; -+} -+ -+static struct inodev_entry * -+lookup_inodev_entry(const ino_t ino, const dev_t dev) -+{ -+ unsigned int index = fhash(ino, dev, inodev_set.i_size); -+ struct inodev_entry *match; -+ -+ match = inodev_set.i_hash[index]; -+ -+ while (match && (match->nentry->inode != ino || match->nentry->device != dev)) -+ match = match->next; -+ -+ return match; -+} -+ -+static void -+insert_inodev_entry(struct inodev_entry *entry) -+{ -+ unsigned int index = fhash(entry->nentry->inode, entry->nentry->device, -+ inodev_set.i_size); -+ struct inodev_entry **curr; -+ -+ entry->prev = NULL; -+ -+ curr = &inodev_set.i_hash[index]; -+ if (*curr != NULL) -+ (*curr)->prev = entry; -+ -+ entry->next = *curr; -+ *curr = entry; -+ -+ return; -+} -+ -+static void -+__insert_acl_role_label(struct acl_role_label *role, uid_t uidgid) -+{ -+ unsigned int index = -+ rhash(uidgid, role->roletype & (GR_ROLE_USER | GR_ROLE_GROUP), acl_role_set.r_size); -+ struct acl_role_label **curr; -+ struct acl_role_label *tmp, *tmp2; -+ -+ curr = &acl_role_set.r_hash[index]; -+ -+ /* simple case, slot is empty, just set it to our role */ -+ if (*curr == NULL) { -+ *curr = role; -+ } else { -+ /* example: -+ 1 -> 2 -> 3 (adding 2 -> 3 to here) -+ 2 -> 3 -+ */ -+ /* first check to see if we can already be reached via this slot */ -+ tmp = *curr; -+ while (tmp && tmp != role) -+ tmp = tmp->next; -+ if (tmp == role) { -+ /* we don't need to add ourselves to this slot's chain */ -+ return; -+ } -+ /* we need to add ourselves to this chain, two cases */ -+ if (role->next == NULL) { -+ /* simple case, append the current chain to our role */ -+ role->next = *curr; -+ *curr = role; -+ } else { -+ /* 1 -> 2 -> 3 -> 4 -+ 2 -> 3 -> 4 -+ 3 -> 4 (adding 1 -> 2 -> 3 -> 4 to here) -+ */ -+ /* trickier case: walk our role's chain until we find -+ the role for the start of the current slot's chain */ -+ tmp = role; -+ tmp2 = *curr; -+ while (tmp->next && tmp->next != tmp2) -+ tmp = tmp->next; -+ if (tmp->next == tmp2) { -+ /* from example above, we found 3, so just -+ replace this slot's chain with ours */ -+ *curr = role; -+ } else { -+ /* we didn't find a subset of our role's chain -+ in the current slot's chain, so append their -+ chain to ours, and set us as the first role in -+ the slot's chain -+ -+ we could fold this case with the case above, -+ but making it explicit for clarity -+ */ -+ tmp->next = tmp2; -+ *curr = role; -+ } -+ } -+ } -+ -+ return; -+} -+ -+static void -+insert_acl_role_label(struct acl_role_label *role) -+{ -+ int i; -+ -+ if (role_list == NULL) { -+ role_list = role; -+ role->prev = NULL; -+ } else { -+ role->prev = role_list; -+ role_list = role; -+ } -+ -+ /* used for hash chains */ -+ role->next = NULL; -+ -+ if (role->roletype & GR_ROLE_DOMAIN) { -+ for (i = 0; i < role->domain_child_num; i++) -+ __insert_acl_role_label(role, role->domain_children[i]); -+ } else -+ __insert_acl_role_label(role, role->uidgid); -+} -+ -+static int -+insert_name_entry(char *name, const ino_t inode, const dev_t device, __u8 deleted) -+{ -+ struct name_entry **curr, *nentry; -+ struct inodev_entry *ientry; -+ unsigned int len = strlen(name); -+ unsigned int key = full_name_hash(name, len); -+ unsigned int index = key % name_set.n_size; -+ -+ curr = &name_set.n_hash[index]; -+ -+ while (*curr && ((*curr)->key != key || !gr_streq((*curr)->name, name, (*curr)->len, len))) -+ curr = &((*curr)->next); -+ -+ if (*curr != NULL) -+ return 1; -+ -+ nentry = acl_alloc(sizeof (struct name_entry)); -+ if (nentry == NULL) -+ return 0; -+ ientry = acl_alloc(sizeof (struct inodev_entry)); -+ if (ientry == NULL) -+ return 0; -+ ientry->nentry = nentry; -+ -+ nentry->key = key; -+ nentry->name = name; -+ nentry->inode = inode; -+ nentry->device = device; -+ nentry->len = len; -+ nentry->deleted = deleted; -+ -+ nentry->prev = NULL; -+ curr = &name_set.n_hash[index]; -+ if (*curr != NULL) -+ (*curr)->prev = nentry; -+ nentry->next = *curr; -+ *curr = nentry; -+ -+ /* insert us into the table searchable by inode/dev */ -+ insert_inodev_entry(ientry); -+ -+ return 1; -+} -+ -+static void -+insert_acl_obj_label(struct acl_object_label *obj, -+ struct acl_subject_label *subj) -+{ -+ unsigned int index = -+ fhash(obj->inode, obj->device, subj->obj_hash_size); -+ struct acl_object_label **curr; -+ -+ -+ obj->prev = NULL; -+ -+ curr = &subj->obj_hash[index]; -+ if (*curr != NULL) -+ (*curr)->prev = obj; -+ -+ obj->next = *curr; -+ *curr = obj; -+ -+ return; -+} -+ -+static void -+insert_acl_subj_label(struct acl_subject_label *obj, -+ struct acl_role_label *role) -+{ -+ unsigned int index = fhash(obj->inode, obj->device, role->subj_hash_size); -+ struct acl_subject_label **curr; -+ -+ obj->prev = NULL; -+ -+ curr = &role->subj_hash[index]; -+ if (*curr != NULL) -+ (*curr)->prev = obj; -+ -+ obj->next = *curr; -+ *curr = obj; -+ -+ return; -+} -+ -+/* allocating chained hash tables, so optimal size is where lambda ~ 1 */ -+ -+static void * -+create_table(__u32 * len, int elementsize) -+{ -+ unsigned int table_sizes[] = { -+ 7, 13, 31, 61, 127, 251, 509, 1021, 2039, 4093, 8191, 16381, -+ 32749, 65521, 131071, 262139, 524287, 1048573, 2097143, -+ 4194301, 8388593, 16777213, 33554393, 67108859 -+ }; -+ void *newtable = NULL; -+ unsigned int pwr = 0; -+ -+ while ((pwr < ((sizeof (table_sizes) / sizeof (table_sizes[0])) - 1)) && -+ table_sizes[pwr] <= *len) -+ pwr++; -+ -+ if (table_sizes[pwr] <= *len || (table_sizes[pwr] > ULONG_MAX / elementsize)) -+ return newtable; -+ -+ if ((table_sizes[pwr] * elementsize) <= PAGE_SIZE) -+ newtable = -+ kmalloc(table_sizes[pwr] * elementsize, GFP_KERNEL); -+ else -+ newtable = vmalloc(table_sizes[pwr] * elementsize); -+ -+ *len = table_sizes[pwr]; -+ -+ return newtable; -+} -+ -+static int -+init_variables(const struct gr_arg *arg) -+{ -+ struct task_struct *reaper = init_pid_ns.child_reaper; -+ unsigned int stacksize; -+ -+ subj_map_set.s_size = arg->role_db.num_subjects; -+ acl_role_set.r_size = arg->role_db.num_roles + arg->role_db.num_domain_children; -+ name_set.n_size = arg->role_db.num_objects; -+ inodev_set.i_size = arg->role_db.num_objects; -+ -+ if (!subj_map_set.s_size || !acl_role_set.r_size || -+ !name_set.n_size || !inodev_set.i_size) -+ return 1; -+ -+ if (!gr_init_uidset()) -+ return 1; -+ -+ /* set up the stack that holds allocation info */ -+ -+ stacksize = arg->role_db.num_pointers + 5; -+ -+ if (!acl_alloc_stack_init(stacksize)) -+ return 1; -+ -+ /* grab reference for the real root dentry and vfsmount */ -+ get_fs_root(reaper->fs, &real_root); -+ -+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG -+ printk(KERN_ALERT "Obtained real root device=%d, inode=%lu\n", __get_dev(real_root.dentry), real_root.dentry->d_inode->i_ino); -+#endif -+ -+ fakefs_obj_rw = acl_alloc(sizeof(struct acl_object_label)); -+ if (fakefs_obj_rw == NULL) -+ return 1; -+ fakefs_obj_rw->mode = GR_FIND | GR_READ | GR_WRITE; -+ -+ fakefs_obj_rwx = acl_alloc(sizeof(struct acl_object_label)); -+ if (fakefs_obj_rwx == NULL) -+ return 1; -+ fakefs_obj_rwx->mode = GR_FIND | GR_READ | GR_WRITE | GR_EXEC; -+ -+ subj_map_set.s_hash = -+ (struct subject_map **) create_table(&subj_map_set.s_size, sizeof(void *)); -+ acl_role_set.r_hash = -+ (struct acl_role_label **) create_table(&acl_role_set.r_size, sizeof(void *)); -+ name_set.n_hash = (struct name_entry **) create_table(&name_set.n_size, sizeof(void *)); -+ inodev_set.i_hash = -+ (struct inodev_entry **) create_table(&inodev_set.i_size, sizeof(void *)); -+ -+ if (!subj_map_set.s_hash || !acl_role_set.r_hash || -+ !name_set.n_hash || !inodev_set.i_hash) -+ return 1; -+ -+ memset(subj_map_set.s_hash, 0, -+ sizeof(struct subject_map *) * subj_map_set.s_size); -+ memset(acl_role_set.r_hash, 0, -+ sizeof (struct acl_role_label *) * acl_role_set.r_size); -+ memset(name_set.n_hash, 0, -+ sizeof (struct name_entry *) * name_set.n_size); -+ memset(inodev_set.i_hash, 0, -+ sizeof (struct inodev_entry *) * inodev_set.i_size); -+ -+ return 0; -+} -+ -+/* free information not needed after startup -+ currently contains user->kernel pointer mappings for subjects -+*/ -+ -+static void -+free_init_variables(void) -+{ -+ __u32 i; -+ -+ if (subj_map_set.s_hash) { -+ for (i = 0; i < subj_map_set.s_size; i++) { -+ if (subj_map_set.s_hash[i]) { -+ kfree(subj_map_set.s_hash[i]); -+ subj_map_set.s_hash[i] = NULL; -+ } -+ } -+ -+ if ((subj_map_set.s_size * sizeof (struct subject_map *)) <= -+ PAGE_SIZE) -+ kfree(subj_map_set.s_hash); -+ else -+ vfree(subj_map_set.s_hash); -+ } -+ -+ return; -+} -+ -+static void -+free_variables(void) -+{ -+ struct acl_subject_label *s; -+ struct acl_role_label *r; -+ struct task_struct *task, *task2; -+ unsigned int x; -+ -+ gr_clear_learn_entries(); -+ -+ read_lock(&tasklist_lock); -+ do_each_thread(task2, task) { -+ task->acl_sp_role = 0; -+ task->acl_role_id = 0; -+ task->acl = NULL; -+ task->role = NULL; -+ } while_each_thread(task2, task); -+ read_unlock(&tasklist_lock); -+ -+ /* release the reference to the real root dentry and vfsmount */ -+ path_put(&real_root); -+ memset(&real_root, 0, sizeof(real_root)); -+ -+ /* free all object hash tables */ -+ -+ FOR_EACH_ROLE_START(r) -+ if (r->subj_hash == NULL) -+ goto next_role; -+ FOR_EACH_SUBJECT_START(r, s, x) -+ if (s->obj_hash == NULL) -+ break; -+ if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE) -+ kfree(s->obj_hash); -+ else -+ vfree(s->obj_hash); -+ FOR_EACH_SUBJECT_END(s, x) -+ FOR_EACH_NESTED_SUBJECT_START(r, s) -+ if (s->obj_hash == NULL) -+ break; -+ if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE) -+ kfree(s->obj_hash); -+ else -+ vfree(s->obj_hash); -+ FOR_EACH_NESTED_SUBJECT_END(s) -+ if ((r->subj_hash_size * sizeof (struct acl_subject_label *)) <= PAGE_SIZE) -+ kfree(r->subj_hash); -+ else -+ vfree(r->subj_hash); -+ r->subj_hash = NULL; -+next_role: -+ FOR_EACH_ROLE_END(r) -+ -+ acl_free_all(); -+ -+ if (acl_role_set.r_hash) { -+ if ((acl_role_set.r_size * sizeof (struct acl_role_label *)) <= -+ PAGE_SIZE) -+ kfree(acl_role_set.r_hash); -+ else -+ vfree(acl_role_set.r_hash); -+ } -+ if (name_set.n_hash) { -+ if ((name_set.n_size * sizeof (struct name_entry *)) <= -+ PAGE_SIZE) -+ kfree(name_set.n_hash); -+ else -+ vfree(name_set.n_hash); -+ } -+ -+ if (inodev_set.i_hash) { -+ if ((inodev_set.i_size * sizeof (struct inodev_entry *)) <= -+ PAGE_SIZE) -+ kfree(inodev_set.i_hash); -+ else -+ vfree(inodev_set.i_hash); -+ } -+ -+ gr_free_uidset(); -+ -+ memset(&name_set, 0, sizeof (struct name_db)); -+ memset(&inodev_set, 0, sizeof (struct inodev_db)); -+ memset(&acl_role_set, 0, sizeof (struct acl_role_db)); -+ memset(&subj_map_set, 0, sizeof (struct acl_subj_map_db)); -+ -+ default_role = NULL; -+ kernel_role = NULL; -+ role_list = NULL; -+ -+ return; -+} -+ -+static __u32 -+count_user_objs(struct acl_object_label *userp) -+{ -+ struct acl_object_label o_tmp; -+ __u32 num = 0; -+ -+ while (userp) { -+ if (copy_from_user(&o_tmp, userp, -+ sizeof (struct acl_object_label))) -+ break; -+ -+ userp = o_tmp.prev; -+ num++; -+ } -+ -+ return num; -+} -+ -+static struct acl_subject_label * -+do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role); -+ -+static int -+copy_user_glob(struct acl_object_label *obj) -+{ -+ struct acl_object_label *g_tmp, **guser; -+ unsigned int len; -+ char *tmp; -+ -+ if (obj->globbed == NULL) -+ return 0; -+ -+ guser = &obj->globbed; -+ while (*guser) { -+ g_tmp = (struct acl_object_label *) -+ acl_alloc(sizeof (struct acl_object_label)); -+ if (g_tmp == NULL) -+ return -ENOMEM; -+ -+ if (copy_from_user(g_tmp, *guser, -+ sizeof (struct acl_object_label))) -+ return -EFAULT; -+ -+ len = strnlen_user(g_tmp->filename, PATH_MAX); -+ -+ if (!len || len >= PATH_MAX) -+ return -EINVAL; -+ -+ if ((tmp = (char *) acl_alloc(len)) == NULL) -+ return -ENOMEM; -+ -+ if (copy_from_user(tmp, g_tmp->filename, len)) -+ return -EFAULT; -+ tmp[len-1] = '\0'; -+ g_tmp->filename = tmp; -+ -+ *guser = g_tmp; -+ guser = &(g_tmp->next); -+ } -+ -+ return 0; -+} -+ -+static int -+copy_user_objs(struct acl_object_label *userp, struct acl_subject_label *subj, -+ struct acl_role_label *role) -+{ -+ struct acl_object_label *o_tmp; -+ unsigned int len; -+ int ret; -+ char *tmp; -+ -+ while (userp) { -+ if ((o_tmp = (struct acl_object_label *) -+ acl_alloc(sizeof (struct acl_object_label))) == NULL) -+ return -ENOMEM; -+ -+ if (copy_from_user(o_tmp, userp, -+ sizeof (struct acl_object_label))) -+ return -EFAULT; -+ -+ userp = o_tmp->prev; -+ -+ len = strnlen_user(o_tmp->filename, PATH_MAX); -+ -+ if (!len || len >= PATH_MAX) -+ return -EINVAL; -+ -+ if ((tmp = (char *) acl_alloc(len)) == NULL) -+ return -ENOMEM; -+ -+ if (copy_from_user(tmp, o_tmp->filename, len)) -+ return -EFAULT; -+ tmp[len-1] = '\0'; -+ o_tmp->filename = tmp; -+ -+ insert_acl_obj_label(o_tmp, subj); -+ if (!insert_name_entry(o_tmp->filename, o_tmp->inode, -+ o_tmp->device, (o_tmp->mode & GR_DELETED) ? 1 : 0)) -+ return -ENOMEM; -+ -+ ret = copy_user_glob(o_tmp); -+ if (ret) -+ return ret; -+ -+ if (o_tmp->nested) { -+ o_tmp->nested = do_copy_user_subj(o_tmp->nested, role); -+ if (IS_ERR(o_tmp->nested)) -+ return PTR_ERR(o_tmp->nested); -+ -+ /* insert into nested subject list */ -+ o_tmp->nested->next = role->hash->first; -+ role->hash->first = o_tmp->nested; -+ } -+ } -+ -+ return 0; -+} -+ -+static __u32 -+count_user_subjs(struct acl_subject_label *userp) -+{ -+ struct acl_subject_label s_tmp; -+ __u32 num = 0; -+ -+ while (userp) { -+ if (copy_from_user(&s_tmp, userp, -+ sizeof (struct acl_subject_label))) -+ break; -+ -+ userp = s_tmp.prev; -+ /* do not count nested subjects against this count, since -+ they are not included in the hash table, but are -+ attached to objects. We have already counted -+ the subjects in userspace for the allocation -+ stack -+ */ -+ if (!(s_tmp.mode & GR_NESTED)) -+ num++; -+ } -+ -+ return num; -+} -+ -+static int -+copy_user_allowedips(struct acl_role_label *rolep) -+{ -+ struct role_allowed_ip *ruserip, *rtmp = NULL, *rlast; -+ -+ ruserip = rolep->allowed_ips; -+ -+ while (ruserip) { -+ rlast = rtmp; -+ -+ if ((rtmp = (struct role_allowed_ip *) -+ acl_alloc(sizeof (struct role_allowed_ip))) == NULL) -+ return -ENOMEM; -+ -+ if (copy_from_user(rtmp, ruserip, -+ sizeof (struct role_allowed_ip))) -+ return -EFAULT; -+ -+ ruserip = rtmp->prev; -+ -+ if (!rlast) { -+ rtmp->prev = NULL; -+ rolep->allowed_ips = rtmp; -+ } else { -+ rlast->next = rtmp; -+ rtmp->prev = rlast; -+ } -+ -+ if (!ruserip) -+ rtmp->next = NULL; -+ } -+ -+ return 0; -+} -+ -+static int -+copy_user_transitions(struct acl_role_label *rolep) -+{ -+ struct role_transition *rusertp, *rtmp = NULL, *rlast; -+ -+ unsigned int len; -+ char *tmp; -+ -+ rusertp = rolep->transitions; -+ -+ while (rusertp) { -+ rlast = rtmp; -+ -+ if ((rtmp = (struct role_transition *) -+ acl_alloc(sizeof (struct role_transition))) == NULL) -+ return -ENOMEM; -+ -+ if (copy_from_user(rtmp, rusertp, -+ sizeof (struct role_transition))) -+ return -EFAULT; -+ -+ rusertp = rtmp->prev; -+ -+ len = strnlen_user(rtmp->rolename, GR_SPROLE_LEN); -+ -+ if (!len || len >= GR_SPROLE_LEN) -+ return -EINVAL; -+ -+ if ((tmp = (char *) acl_alloc(len)) == NULL) -+ return -ENOMEM; -+ -+ if (copy_from_user(tmp, rtmp->rolename, len)) -+ return -EFAULT; -+ tmp[len-1] = '\0'; -+ rtmp->rolename = tmp; -+ -+ if (!rlast) { -+ rtmp->prev = NULL; -+ rolep->transitions = rtmp; -+ } else { -+ rlast->next = rtmp; -+ rtmp->prev = rlast; -+ } -+ -+ if (!rusertp) -+ rtmp->next = NULL; -+ } -+ -+ return 0; -+} -+ -+static struct acl_subject_label * -+do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role) -+{ -+ struct acl_subject_label *s_tmp = NULL, *s_tmp2; -+ unsigned int len; -+ char *tmp; -+ __u32 num_objs; -+ struct acl_ip_label **i_tmp, *i_utmp2; -+ struct gr_hash_struct ghash; -+ struct subject_map *subjmap; -+ unsigned int i_num; -+ int err; -+ -+ s_tmp = lookup_subject_map(userp); -+ -+ /* we've already copied this subject into the kernel, just return -+ the reference to it, and don't copy it over again -+ */ -+ if (s_tmp) -+ return(s_tmp); -+ -+ if ((s_tmp = (struct acl_subject_label *) -+ acl_alloc(sizeof (struct acl_subject_label))) == NULL) -+ return ERR_PTR(-ENOMEM); -+ -+ subjmap = (struct subject_map *)kmalloc(sizeof (struct subject_map), GFP_KERNEL); -+ if (subjmap == NULL) -+ return ERR_PTR(-ENOMEM); -+ -+ subjmap->user = userp; -+ subjmap->kernel = s_tmp; -+ insert_subj_map_entry(subjmap); -+ -+ if (copy_from_user(s_tmp, userp, -+ sizeof (struct acl_subject_label))) -+ return ERR_PTR(-EFAULT); -+ -+ len = strnlen_user(s_tmp->filename, PATH_MAX); -+ -+ if (!len || len >= PATH_MAX) -+ return ERR_PTR(-EINVAL); -+ -+ if ((tmp = (char *) acl_alloc(len)) == NULL) -+ return ERR_PTR(-ENOMEM); -+ -+ if (copy_from_user(tmp, s_tmp->filename, len)) -+ return ERR_PTR(-EFAULT); -+ tmp[len-1] = '\0'; -+ s_tmp->filename = tmp; -+ -+ if (!strcmp(s_tmp->filename, "/")) -+ role->root_label = s_tmp; -+ -+ if (copy_from_user(&ghash, s_tmp->hash, sizeof(struct gr_hash_struct))) -+ return ERR_PTR(-EFAULT); -+ -+ /* copy user and group transition tables */ -+ -+ if (s_tmp->user_trans_num) { -+ uid_t *uidlist; -+ -+ uidlist = (uid_t *)acl_alloc_num(s_tmp->user_trans_num, sizeof(uid_t)); -+ if (uidlist == NULL) -+ return ERR_PTR(-ENOMEM); -+ if (copy_from_user(uidlist, s_tmp->user_transitions, s_tmp->user_trans_num * sizeof(uid_t))) -+ return ERR_PTR(-EFAULT); -+ -+ s_tmp->user_transitions = uidlist; -+ } -+ -+ if (s_tmp->group_trans_num) { -+ gid_t *gidlist; -+ -+ gidlist = (gid_t *)acl_alloc_num(s_tmp->group_trans_num, sizeof(gid_t)); -+ if (gidlist == NULL) -+ return ERR_PTR(-ENOMEM); -+ if (copy_from_user(gidlist, s_tmp->group_transitions, s_tmp->group_trans_num * sizeof(gid_t))) -+ return ERR_PTR(-EFAULT); -+ -+ s_tmp->group_transitions = gidlist; -+ } -+ -+ /* set up object hash table */ -+ num_objs = count_user_objs(ghash.first); -+ -+ s_tmp->obj_hash_size = num_objs; -+ s_tmp->obj_hash = -+ (struct acl_object_label **) -+ create_table(&(s_tmp->obj_hash_size), sizeof(void *)); -+ -+ if (!s_tmp->obj_hash) -+ return ERR_PTR(-ENOMEM); -+ -+ memset(s_tmp->obj_hash, 0, -+ s_tmp->obj_hash_size * -+ sizeof (struct acl_object_label *)); -+ -+ /* add in objects */ -+ err = copy_user_objs(ghash.first, s_tmp, role); -+ -+ if (err) -+ return ERR_PTR(err); -+ -+ /* set pointer for parent subject */ -+ if (s_tmp->parent_subject) { -+ s_tmp2 = do_copy_user_subj(s_tmp->parent_subject, role); -+ -+ if (IS_ERR(s_tmp2)) -+ return s_tmp2; -+ -+ s_tmp->parent_subject = s_tmp2; -+ } -+ -+ /* add in ip acls */ -+ -+ if (!s_tmp->ip_num) { -+ s_tmp->ips = NULL; -+ goto insert; -+ } -+ -+ i_tmp = -+ (struct acl_ip_label **) acl_alloc_num(s_tmp->ip_num, -+ sizeof (struct acl_ip_label *)); -+ -+ if (!i_tmp) -+ return ERR_PTR(-ENOMEM); -+ -+ for (i_num = 0; i_num < s_tmp->ip_num; i_num++) { -+ *(i_tmp + i_num) = -+ (struct acl_ip_label *) -+ acl_alloc(sizeof (struct acl_ip_label)); -+ if (!*(i_tmp + i_num)) -+ return ERR_PTR(-ENOMEM); -+ -+ if (copy_from_user -+ (&i_utmp2, s_tmp->ips + i_num, -+ sizeof (struct acl_ip_label *))) -+ return ERR_PTR(-EFAULT); -+ -+ if (copy_from_user -+ (*(i_tmp + i_num), i_utmp2, -+ sizeof (struct acl_ip_label))) -+ return ERR_PTR(-EFAULT); -+ -+ if ((*(i_tmp + i_num))->iface == NULL) -+ continue; -+ -+ len = strnlen_user((*(i_tmp + i_num))->iface, IFNAMSIZ); -+ if (!len || len >= IFNAMSIZ) -+ return ERR_PTR(-EINVAL); -+ tmp = acl_alloc(len); -+ if (tmp == NULL) -+ return ERR_PTR(-ENOMEM); -+ if (copy_from_user(tmp, (*(i_tmp + i_num))->iface, len)) -+ return ERR_PTR(-EFAULT); -+ (*(i_tmp + i_num))->iface = tmp; -+ } -+ -+ s_tmp->ips = i_tmp; -+ -+insert: -+ if (!insert_name_entry(s_tmp->filename, s_tmp->inode, -+ s_tmp->device, (s_tmp->mode & GR_DELETED) ? 1 : 0)) -+ return ERR_PTR(-ENOMEM); -+ -+ return s_tmp; -+} -+ -+static int -+copy_user_subjs(struct acl_subject_label *userp, struct acl_role_label *role) -+{ -+ struct acl_subject_label s_pre; -+ struct acl_subject_label * ret; -+ int err; -+ -+ while (userp) { -+ if (copy_from_user(&s_pre, userp, -+ sizeof (struct acl_subject_label))) -+ return -EFAULT; -+ -+ /* do not add nested subjects here, add -+ while parsing objects -+ */ -+ -+ if (s_pre.mode & GR_NESTED) { -+ userp = s_pre.prev; -+ continue; -+ } -+ -+ ret = do_copy_user_subj(userp, role); -+ -+ err = PTR_ERR(ret); -+ if (IS_ERR(ret)) -+ return err; -+ -+ insert_acl_subj_label(ret, role); -+ -+ userp = s_pre.prev; -+ } -+ -+ return 0; -+} -+ -+static int -+copy_user_acl(struct gr_arg *arg) -+{ -+ struct acl_role_label *r_tmp = NULL, **r_utmp, *r_utmp2; -+ struct sprole_pw *sptmp; -+ struct gr_hash_struct *ghash; -+ uid_t *domainlist; -+ unsigned int r_num; -+ unsigned int len; -+ char *tmp; -+ int err = 0; -+ __u16 i; -+ __u32 num_subjs; -+ -+ /* we need a default and kernel role */ -+ if (arg->role_db.num_roles < 2) -+ return -EINVAL; -+ -+ /* copy special role authentication info from userspace */ -+ -+ num_sprole_pws = arg->num_sprole_pws; -+ acl_special_roles = (struct sprole_pw **) acl_alloc_num(num_sprole_pws, sizeof(struct sprole_pw *)); -+ -+ if (!acl_special_roles && num_sprole_pws) -+ return -ENOMEM; -+ -+ for (i = 0; i < num_sprole_pws; i++) { -+ sptmp = (struct sprole_pw *) acl_alloc(sizeof(struct sprole_pw)); -+ if (!sptmp) -+ return -ENOMEM; -+ if (copy_from_user(sptmp, arg->sprole_pws + i, -+ sizeof (struct sprole_pw))) -+ return -EFAULT; -+ -+ len = strnlen_user(sptmp->rolename, GR_SPROLE_LEN); -+ -+ if (!len || len >= GR_SPROLE_LEN) -+ return -EINVAL; -+ -+ if ((tmp = (char *) acl_alloc(len)) == NULL) -+ return -ENOMEM; -+ -+ if (copy_from_user(tmp, sptmp->rolename, len)) -+ return -EFAULT; -+ -+ tmp[len-1] = '\0'; -+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG -+ printk(KERN_ALERT "Copying special role %s\n", tmp); -+#endif -+ sptmp->rolename = tmp; -+ acl_special_roles[i] = sptmp; -+ } -+ -+ r_utmp = (struct acl_role_label **) arg->role_db.r_table; -+ -+ for (r_num = 0; r_num < arg->role_db.num_roles; r_num++) { -+ r_tmp = acl_alloc(sizeof (struct acl_role_label)); -+ -+ if (!r_tmp) -+ return -ENOMEM; -+ -+ if (copy_from_user(&r_utmp2, r_utmp + r_num, -+ sizeof (struct acl_role_label *))) -+ return -EFAULT; -+ -+ if (copy_from_user(r_tmp, r_utmp2, -+ sizeof (struct acl_role_label))) -+ return -EFAULT; -+ -+ len = strnlen_user(r_tmp->rolename, GR_SPROLE_LEN); -+ -+ if (!len || len >= PATH_MAX) -+ return -EINVAL; -+ -+ if ((tmp = (char *) acl_alloc(len)) == NULL) -+ return -ENOMEM; -+ -+ if (copy_from_user(tmp, r_tmp->rolename, len)) -+ return -EFAULT; -+ -+ tmp[len-1] = '\0'; -+ r_tmp->rolename = tmp; -+ -+ if (!strcmp(r_tmp->rolename, "default") -+ && (r_tmp->roletype & GR_ROLE_DEFAULT)) { -+ default_role = r_tmp; -+ } else if (!strcmp(r_tmp->rolename, ":::kernel:::")) { -+ kernel_role = r_tmp; -+ } -+ -+ if ((ghash = (struct gr_hash_struct *) acl_alloc(sizeof(struct gr_hash_struct))) == NULL) -+ return -ENOMEM; -+ -+ if (copy_from_user(ghash, r_tmp->hash, sizeof(struct gr_hash_struct))) -+ return -EFAULT; -+ -+ r_tmp->hash = ghash; -+ -+ num_subjs = count_user_subjs(r_tmp->hash->first); -+ -+ r_tmp->subj_hash_size = num_subjs; -+ r_tmp->subj_hash = -+ (struct acl_subject_label **) -+ create_table(&(r_tmp->subj_hash_size), sizeof(void *)); -+ -+ if (!r_tmp->subj_hash) -+ return -ENOMEM; -+ -+ err = copy_user_allowedips(r_tmp); -+ if (err) -+ return err; -+ -+ /* copy domain info */ -+ if (r_tmp->domain_children != NULL) { -+ domainlist = acl_alloc_num(r_tmp->domain_child_num, sizeof(uid_t)); -+ if (domainlist == NULL) -+ return -ENOMEM; -+ -+ if (copy_from_user(domainlist, r_tmp->domain_children, r_tmp->domain_child_num * sizeof(uid_t))) -+ return -EFAULT; -+ -+ r_tmp->domain_children = domainlist; -+ } -+ -+ err = copy_user_transitions(r_tmp); -+ if (err) -+ return err; -+ -+ memset(r_tmp->subj_hash, 0, -+ r_tmp->subj_hash_size * -+ sizeof (struct acl_subject_label *)); -+ -+ err = copy_user_subjs(r_tmp->hash->first, r_tmp); -+ -+ if (err) -+ return err; -+ -+ /* set nested subject list to null */ -+ r_tmp->hash->first = NULL; -+ -+ insert_acl_role_label(r_tmp); -+ } -+ -+ if (default_role == NULL || kernel_role == NULL) -+ return -EINVAL; -+ -+ return err; -+} -+ -+static int -+gracl_init(struct gr_arg *args) -+{ -+ int error = 0; -+ -+ memcpy(gr_system_salt, args->salt, GR_SALT_LEN); -+ memcpy(gr_system_sum, args->sum, GR_SHA_LEN); -+ -+ if (init_variables(args)) { -+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_INITF_ACL_MSG, GR_VERSION); -+ error = -ENOMEM; -+ free_variables(); -+ goto out; -+ } -+ -+ error = copy_user_acl(args); -+ free_init_variables(); -+ if (error) { -+ free_variables(); -+ goto out; -+ } -+ -+ if ((error = gr_set_acls(0))) { -+ free_variables(); -+ goto out; -+ } -+ -+ pax_open_kernel(); -+ gr_status |= GR_READY; -+ pax_close_kernel(); -+ -+ out: -+ return error; -+} -+ -+/* derived from glibc fnmatch() 0: match, 1: no match*/ -+ -+static int -+glob_match(const char *p, const char *n) -+{ -+ char c; -+ -+ while ((c = *p++) != '\0') { -+ switch (c) { -+ case '?': -+ if (*n == '\0') -+ return 1; -+ else if (*n == '/') -+ return 1; -+ break; -+ case '\\': -+ if (*n != c) -+ return 1; -+ break; -+ case '*': -+ for (c = *p++; c == '?' || c == '*'; c = *p++) { -+ if (*n == '/') -+ return 1; -+ else if (c == '?') { -+ if (*n == '\0') -+ return 1; -+ else -+ ++n; -+ } -+ } -+ if (c == '\0') { -+ return 0; -+ } else { -+ const char *endp; -+ -+ if ((endp = strchr(n, '/')) == NULL) -+ endp = n + strlen(n); -+ -+ if (c == '[') { -+ for (--p; n < endp; ++n) -+ if (!glob_match(p, n)) -+ return 0; -+ } else if (c == '/') { -+ while (*n != '\0' && *n != '/') -+ ++n; -+ if (*n == '/' && !glob_match(p, n + 1)) -+ return 0; -+ } else { -+ for (--p; n < endp; ++n) -+ if (*n == c && !glob_match(p, n)) -+ return 0; -+ } -+ -+ return 1; -+ } -+ case '[': -+ { -+ int not; -+ char cold; -+ -+ if (*n == '\0' || *n == '/') -+ return 1; -+ -+ not = (*p == '!' || *p == '^'); -+ if (not) -+ ++p; -+ -+ c = *p++; -+ for (;;) { -+ unsigned char fn = (unsigned char)*n; -+ -+ if (c == '\0') -+ return 1; -+ else { -+ if (c == fn) -+ goto matched; -+ cold = c; -+ c = *p++; -+ -+ if (c == '-' && *p != ']') { -+ unsigned char cend = *p++; -+ -+ if (cend == '\0') -+ return 1; -+ -+ if (cold <= fn && fn <= cend) -+ goto matched; -+ -+ c = *p++; -+ } -+ } -+ -+ if (c == ']') -+ break; -+ } -+ if (!not) -+ return 1; -+ break; -+ matched: -+ while (c != ']') { -+ if (c == '\0') -+ return 1; -+ -+ c = *p++; -+ } -+ if (not) -+ return 1; -+ } -+ break; -+ default: -+ if (c != *n) -+ return 1; -+ } -+ -+ ++n; -+ } -+ -+ if (*n == '\0') -+ return 0; -+ -+ if (*n == '/') -+ return 0; -+ -+ return 1; -+} -+ -+static struct acl_object_label * -+chk_glob_label(struct acl_object_label *globbed, -+ const struct dentry *dentry, const struct vfsmount *mnt, char **path) -+{ -+ struct acl_object_label *tmp; -+ -+ if (*path == NULL) -+ *path = gr_to_filename_nolock(dentry, mnt); -+ -+ tmp = globbed; -+ -+ while (tmp) { -+ if (!glob_match(tmp->filename, *path)) -+ return tmp; -+ tmp = tmp->next; -+ } -+ -+ return NULL; -+} -+ -+static struct acl_object_label * -+__full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt, -+ const ino_t curr_ino, const dev_t curr_dev, -+ const struct acl_subject_label *subj, char **path, const int checkglob) -+{ -+ struct acl_subject_label *tmpsubj; -+ struct acl_object_label *retval; -+ struct acl_object_label *retval2; -+ -+ tmpsubj = (struct acl_subject_label *) subj; -+ read_lock(&gr_inode_lock); -+ do { -+ retval = lookup_acl_obj_label(curr_ino, curr_dev, tmpsubj); -+ if (retval) { -+ if (checkglob && retval->globbed) { -+ retval2 = chk_glob_label(retval->globbed, orig_dentry, orig_mnt, path); -+ if (retval2) -+ retval = retval2; -+ } -+ break; -+ } -+ } while ((tmpsubj = tmpsubj->parent_subject)); -+ read_unlock(&gr_inode_lock); -+ -+ return retval; -+} -+ -+static __inline__ struct acl_object_label * -+full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt, -+ struct dentry *curr_dentry, -+ const struct acl_subject_label *subj, char **path, const int checkglob) -+{ -+ int newglob = checkglob; -+ ino_t inode; -+ dev_t device; -+ -+ /* if we aren't checking a subdirectory of the original path yet, don't do glob checking -+ as we don't want a / * rule to match instead of the / object -+ don't do this for create lookups that call this function though, since they're looking up -+ on the parent and thus need globbing checks on all paths -+ */ -+ if (orig_dentry == curr_dentry && newglob != GR_CREATE_GLOB) -+ newglob = GR_NO_GLOB; -+ -+ spin_lock(&curr_dentry->d_lock); -+ inode = curr_dentry->d_inode->i_ino; -+ device = __get_dev(curr_dentry); -+ spin_unlock(&curr_dentry->d_lock); -+ -+ return __full_lookup(orig_dentry, orig_mnt, inode, device, subj, path, newglob); -+} -+ -+static struct acl_object_label * -+__chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt, -+ const struct acl_subject_label *subj, char *path, const int checkglob) -+{ -+ struct dentry *dentry = (struct dentry *) l_dentry; -+ struct vfsmount *mnt = (struct vfsmount *) l_mnt; -+ struct mount *real_mnt = real_mount(mnt); -+ struct acl_object_label *retval; -+ struct dentry *parent; -+ -+ write_seqlock(&rename_lock); -+ br_read_lock(vfsmount_lock); -+ -+ if (unlikely((mnt == shm_mnt && dentry->d_inode->i_nlink == 0) || mnt == pipe_mnt || -+#ifdef CONFIG_NET -+ mnt == sock_mnt || -+#endif -+#ifdef CONFIG_HUGETLBFS -+ (mnt == hugetlbfs_vfsmount && dentry->d_inode->i_nlink == 0) || -+#endif -+ /* ignore Eric Biederman */ -+ IS_PRIVATE(l_dentry->d_inode))) { -+ retval = (subj->mode & GR_SHMEXEC) ? fakefs_obj_rwx : fakefs_obj_rw; -+ goto out; -+ } -+ -+ for (;;) { -+ if (dentry == real_root.dentry && mnt == real_root.mnt) -+ break; -+ -+ if (dentry == mnt->mnt_root || IS_ROOT(dentry)) { -+ if (!mnt_has_parent(real_mnt)) -+ break; -+ -+ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob); -+ if (retval != NULL) -+ goto out; -+ -+ dentry = real_mnt->mnt_mountpoint; -+ real_mnt = real_mnt->mnt_parent; -+ mnt = &real_mnt->mnt; -+ continue; -+ } -+ -+ parent = dentry->d_parent; -+ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob); -+ if (retval != NULL) -+ goto out; -+ -+ dentry = parent; -+ } -+ -+ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob); -+ -+ /* real_root is pinned so we don't have to hold a reference */ -+ if (retval == NULL) -+ retval = full_lookup(l_dentry, l_mnt, real_root.dentry, subj, &path, checkglob); -+out: -+ br_read_unlock(vfsmount_lock); -+ write_sequnlock(&rename_lock); -+ -+ BUG_ON(retval == NULL); -+ -+ return retval; -+} -+ -+static __inline__ struct acl_object_label * -+chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt, -+ const struct acl_subject_label *subj) -+{ -+ char *path = NULL; -+ return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_REG_GLOB); -+} -+ -+static __inline__ struct acl_object_label * -+chk_obj_label_noglob(const struct dentry *l_dentry, const struct vfsmount *l_mnt, -+ const struct acl_subject_label *subj) -+{ -+ char *path = NULL; -+ return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_NO_GLOB); -+} -+ -+static __inline__ struct acl_object_label * -+chk_obj_create_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt, -+ const struct acl_subject_label *subj, char *path) -+{ -+ return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_CREATE_GLOB); -+} -+ -+static struct acl_subject_label * -+chk_subj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt, -+ const struct acl_role_label *role) -+{ -+ struct dentry *dentry = (struct dentry *) l_dentry; -+ struct vfsmount *mnt = (struct vfsmount *) l_mnt; -+ struct mount *real_mnt = real_mount(mnt); -+ struct acl_subject_label *retval; -+ struct dentry *parent; -+ -+ write_seqlock(&rename_lock); -+ br_read_lock(vfsmount_lock); -+ -+ for (;;) { -+ if (dentry == real_root.dentry && mnt == real_root.mnt) -+ break; -+ if (dentry == mnt->mnt_root || IS_ROOT(dentry)) { -+ if (!mnt_has_parent(real_mnt)) -+ break; -+ -+ spin_lock(&dentry->d_lock); -+ read_lock(&gr_inode_lock); -+ retval = -+ lookup_acl_subj_label(dentry->d_inode->i_ino, -+ __get_dev(dentry), role); -+ read_unlock(&gr_inode_lock); -+ spin_unlock(&dentry->d_lock); -+ if (retval != NULL) -+ goto out; -+ -+ dentry = real_mnt->mnt_mountpoint; -+ real_mnt = real_mnt->mnt_parent; -+ mnt = &real_mnt->mnt; -+ continue; -+ } -+ -+ spin_lock(&dentry->d_lock); -+ read_lock(&gr_inode_lock); -+ retval = lookup_acl_subj_label(dentry->d_inode->i_ino, -+ __get_dev(dentry), role); -+ read_unlock(&gr_inode_lock); -+ parent = dentry->d_parent; -+ spin_unlock(&dentry->d_lock); -+ -+ if (retval != NULL) -+ goto out; -+ -+ dentry = parent; -+ } -+ -+ spin_lock(&dentry->d_lock); -+ read_lock(&gr_inode_lock); -+ retval = lookup_acl_subj_label(dentry->d_inode->i_ino, -+ __get_dev(dentry), role); -+ read_unlock(&gr_inode_lock); -+ spin_unlock(&dentry->d_lock); -+ -+ if (unlikely(retval == NULL)) { -+ /* real_root is pinned, we don't need to hold a reference */ -+ read_lock(&gr_inode_lock); -+ retval = lookup_acl_subj_label(real_root.dentry->d_inode->i_ino, -+ __get_dev(real_root.dentry), role); -+ read_unlock(&gr_inode_lock); -+ } -+out: -+ br_read_unlock(vfsmount_lock); -+ write_sequnlock(&rename_lock); -+ -+ BUG_ON(retval == NULL); -+ -+ return retval; -+} -+ -+static void -+gr_log_learn(const struct dentry *dentry, const struct vfsmount *mnt, const __u32 mode) -+{ -+ struct task_struct *task = current; -+ const struct cred *cred = current_cred(); -+ -+ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, task->role->roletype, -+ cred->uid, cred->gid, task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry, -+ task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename, -+ 1UL, 1UL, gr_to_filename(dentry, mnt), (unsigned long) mode, &task->signal->saved_ip); -+ -+ return; -+} -+ -+static void -+gr_log_learn_id_change(const char type, const unsigned int real, -+ const unsigned int effective, const unsigned int fs) -+{ -+ struct task_struct *task = current; -+ const struct cred *cred = current_cred(); -+ -+ security_learn(GR_ID_LEARN_MSG, task->role->rolename, task->role->roletype, -+ cred->uid, cred->gid, task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry, -+ task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename, -+ type, real, effective, fs, &task->signal->saved_ip); -+ -+ return; -+} -+ -+__u32 -+gr_search_file(const struct dentry * dentry, const __u32 mode, -+ const struct vfsmount * mnt) -+{ -+ __u32 retval = mode; -+ struct acl_subject_label *curracl; -+ struct acl_object_label *currobj; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return (mode & ~GR_AUDITS); -+ -+ curracl = current->acl; -+ -+ currobj = chk_obj_label(dentry, mnt, curracl); -+ retval = currobj->mode & mode; -+ -+ /* if we're opening a specified transfer file for writing -+ (e.g. /dev/initctl), then transfer our role to init -+ */ -+ if (unlikely(currobj->mode & GR_INIT_TRANSFER && retval & GR_WRITE && -+ current->role->roletype & GR_ROLE_PERSIST)) { -+ struct task_struct *task = init_pid_ns.child_reaper; -+ -+ if (task->role != current->role) { -+ task->acl_sp_role = 0; -+ task->acl_role_id = current->acl_role_id; -+ task->role = current->role; -+ rcu_read_lock(); -+ read_lock(&grsec_exec_file_lock); -+ gr_apply_subject_to_task(task); -+ read_unlock(&grsec_exec_file_lock); -+ rcu_read_unlock(); -+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_INIT_TRANSFER_MSG); -+ } -+ } -+ -+ if (unlikely -+ ((curracl->mode & (GR_LEARN | GR_INHERITLEARN)) && !(mode & GR_NOPTRACE) -+ && (retval != (mode & ~(GR_AUDITS | GR_SUPPRESS))))) { -+ __u32 new_mode = mode; -+ -+ new_mode &= ~(GR_AUDITS | GR_SUPPRESS); -+ -+ retval = new_mode; -+ -+ if (new_mode & GR_EXEC && curracl->mode & GR_INHERITLEARN) -+ new_mode |= GR_INHERIT; -+ -+ if (!(mode & GR_NOLEARN)) -+ gr_log_learn(dentry, mnt, new_mode); -+ } -+ -+ return retval; -+} -+ -+struct acl_object_label *gr_get_create_object(const struct dentry *new_dentry, -+ const struct dentry *parent, -+ const struct vfsmount *mnt) -+{ -+ struct name_entry *match; -+ struct acl_object_label *matchpo; -+ struct acl_subject_label *curracl; -+ char *path; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return NULL; -+ -+ preempt_disable(); -+ path = gr_to_filename_rbac(new_dentry, mnt); -+ match = lookup_name_entry_create(path); -+ -+ curracl = current->acl; -+ -+ if (match) { -+ read_lock(&gr_inode_lock); -+ matchpo = lookup_acl_obj_label_create(match->inode, match->device, curracl); -+ read_unlock(&gr_inode_lock); -+ -+ if (matchpo) { -+ preempt_enable(); -+ return matchpo; -+ } -+ } -+ -+ // lookup parent -+ -+ matchpo = chk_obj_create_label(parent, mnt, curracl, path); -+ -+ preempt_enable(); -+ return matchpo; -+} -+ -+__u32 -+gr_check_create(const struct dentry * new_dentry, const struct dentry * parent, -+ const struct vfsmount * mnt, const __u32 mode) -+{ -+ struct acl_object_label *matchpo; -+ __u32 retval; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return (mode & ~GR_AUDITS); -+ -+ matchpo = gr_get_create_object(new_dentry, parent, mnt); -+ -+ retval = matchpo->mode & mode; -+ -+ if ((retval != (mode & ~(GR_AUDITS | GR_SUPPRESS))) -+ && (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))) { -+ __u32 new_mode = mode; -+ -+ new_mode &= ~(GR_AUDITS | GR_SUPPRESS); -+ -+ gr_log_learn(new_dentry, mnt, new_mode); -+ return new_mode; -+ } -+ -+ return retval; -+} -+ -+__u32 -+gr_check_link(const struct dentry * new_dentry, -+ const struct dentry * parent_dentry, -+ const struct vfsmount * parent_mnt, -+ const struct dentry * old_dentry, const struct vfsmount * old_mnt) -+{ -+ struct acl_object_label *obj; -+ __u32 oldmode, newmode; -+ __u32 needmode; -+ __u32 checkmodes = GR_FIND | GR_APPEND | GR_WRITE | GR_EXEC | GR_SETID | GR_READ | -+ GR_DELETE | GR_INHERIT; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return (GR_CREATE | GR_LINK); -+ -+ obj = chk_obj_label(old_dentry, old_mnt, current->acl); -+ oldmode = obj->mode; -+ -+ obj = gr_get_create_object(new_dentry, parent_dentry, parent_mnt); -+ newmode = obj->mode; -+ -+ needmode = newmode & checkmodes; -+ -+ // old name for hardlink must have at least the permissions of the new name -+ if ((oldmode & needmode) != needmode) -+ goto bad; -+ -+ // if old name had restrictions/auditing, make sure the new name does as well -+ needmode = oldmode & (GR_NOPTRACE | GR_PTRACERD | GR_INHERIT | GR_AUDITS); -+ -+ // don't allow hardlinking of suid/sgid files without permission -+ if (old_dentry->d_inode->i_mode & (S_ISUID | S_ISGID)) -+ needmode |= GR_SETID; -+ -+ if ((newmode & needmode) != needmode) -+ goto bad; -+ -+ // enforce minimum permissions -+ if ((newmode & (GR_CREATE | GR_LINK)) == (GR_CREATE | GR_LINK)) -+ return newmode; -+bad: -+ needmode = oldmode; -+ if (old_dentry->d_inode->i_mode & (S_ISUID | S_ISGID)) -+ needmode |= GR_SETID; -+ -+ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) { -+ gr_log_learn(old_dentry, old_mnt, needmode | GR_CREATE | GR_LINK); -+ return (GR_CREATE | GR_LINK); -+ } else if (newmode & GR_SUPPRESS) -+ return GR_SUPPRESS; -+ else -+ return 0; -+} -+ -+int -+gr_check_hidden_task(const struct task_struct *task) -+{ -+ if (unlikely(!(gr_status & GR_READY))) -+ return 0; -+ -+ if (!(task->acl->mode & GR_PROCFIND) && !(current->acl->mode & GR_VIEW)) -+ return 1; -+ -+ return 0; -+} -+ -+int -+gr_check_protected_task(const struct task_struct *task) -+{ -+ if (unlikely(!(gr_status & GR_READY) || !task)) -+ return 0; -+ -+ if ((task->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) && -+ task->acl != current->acl) -+ return 1; -+ -+ return 0; -+} -+ -+int -+gr_check_protected_task_fowner(struct pid *pid, enum pid_type type) -+{ -+ struct task_struct *p; -+ int ret = 0; -+ -+ if (unlikely(!(gr_status & GR_READY) || !pid)) -+ return ret; -+ -+ read_lock(&tasklist_lock); -+ do_each_pid_task(pid, type, p) { -+ if ((p->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) && -+ p->acl != current->acl) { -+ ret = 1; -+ goto out; -+ } -+ } while_each_pid_task(pid, type, p); -+out: -+ read_unlock(&tasklist_lock); -+ -+ return ret; -+} -+ -+void -+gr_copy_label(struct task_struct *tsk) -+{ -+ /* plain copying of fields is already done by dup_task_struct */ -+ tsk->signal->used_accept = 0; -+ tsk->acl_sp_role = 0; -+ //tsk->acl_role_id = current->acl_role_id; -+ //tsk->acl = current->acl; -+ //tsk->role = current->role; -+ tsk->signal->curr_ip = current->signal->curr_ip; -+ tsk->signal->saved_ip = current->signal->saved_ip; -+ if (current->exec_file) -+ get_file(current->exec_file); -+ //tsk->exec_file = current->exec_file; -+ //tsk->is_writable = current->is_writable; -+ if (unlikely(current->signal->used_accept)) { -+ current->signal->curr_ip = 0; -+ current->signal->saved_ip = 0; -+ } -+ -+ return; -+} -+ -+static void -+gr_set_proc_res(struct task_struct *task) -+{ -+ struct acl_subject_label *proc; -+ unsigned short i; -+ -+ proc = task->acl; -+ -+ if (proc->mode & (GR_LEARN | GR_INHERITLEARN)) -+ return; -+ -+ for (i = 0; i < RLIM_NLIMITS; i++) { -+ if (!(proc->resmask & (1 << i))) -+ continue; -+ -+ task->signal->rlim[i].rlim_cur = proc->res[i].rlim_cur; -+ task->signal->rlim[i].rlim_max = proc->res[i].rlim_max; -+ } -+ -+ return; -+} -+ -+extern int __gr_process_user_ban(struct user_struct *user); -+ -+int -+gr_check_user_change(int real, int effective, int fs) -+{ -+ unsigned int i; -+ __u16 num; -+ uid_t *uidlist; -+ int curuid; -+ int realok = 0; -+ int effectiveok = 0; -+ int fsok = 0; -+ -+#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT) || defined(CONFIG_GRKERNSEC_BRUTE) -+ struct user_struct *user; -+ -+ if (real == -1) -+ goto skipit; -+ -+ user = find_user(real); -+ if (user == NULL) -+ goto skipit; -+ -+ if (__gr_process_user_ban(user)) { -+ /* for find_user */ -+ free_uid(user); -+ return 1; -+ } -+ -+ /* for find_user */ -+ free_uid(user); -+ -+skipit: -+#endif -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return 0; -+ -+ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) -+ gr_log_learn_id_change('u', real, effective, fs); -+ -+ num = current->acl->user_trans_num; -+ uidlist = current->acl->user_transitions; -+ -+ if (uidlist == NULL) -+ return 0; -+ -+ if (real == -1) -+ realok = 1; -+ if (effective == -1) -+ effectiveok = 1; -+ if (fs == -1) -+ fsok = 1; -+ -+ if (current->acl->user_trans_type & GR_ID_ALLOW) { -+ for (i = 0; i < num; i++) { -+ curuid = (int)uidlist[i]; -+ if (real == curuid) -+ realok = 1; -+ if (effective == curuid) -+ effectiveok = 1; -+ if (fs == curuid) -+ fsok = 1; -+ } -+ } else if (current->acl->user_trans_type & GR_ID_DENY) { -+ for (i = 0; i < num; i++) { -+ curuid = (int)uidlist[i]; -+ if (real == curuid) -+ break; -+ if (effective == curuid) -+ break; -+ if (fs == curuid) -+ break; -+ } -+ /* not in deny list */ -+ if (i == num) { -+ realok = 1; -+ effectiveok = 1; -+ fsok = 1; -+ } -+ } -+ -+ if (realok && effectiveok && fsok) -+ return 0; -+ else { -+ gr_log_int(GR_DONT_AUDIT, GR_USRCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : fs) : effective) : real); -+ return 1; -+ } -+} -+ -+int -+gr_check_group_change(int real, int effective, int fs) -+{ -+ unsigned int i; -+ __u16 num; -+ gid_t *gidlist; -+ int curgid; -+ int realok = 0; -+ int effectiveok = 0; -+ int fsok = 0; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return 0; -+ -+ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) -+ gr_log_learn_id_change('g', real, effective, fs); -+ -+ num = current->acl->group_trans_num; -+ gidlist = current->acl->group_transitions; -+ -+ if (gidlist == NULL) -+ return 0; -+ -+ if (real == -1) -+ realok = 1; -+ if (effective == -1) -+ effectiveok = 1; -+ if (fs == -1) -+ fsok = 1; -+ -+ if (current->acl->group_trans_type & GR_ID_ALLOW) { -+ for (i = 0; i < num; i++) { -+ curgid = (int)gidlist[i]; -+ if (real == curgid) -+ realok = 1; -+ if (effective == curgid) -+ effectiveok = 1; -+ if (fs == curgid) -+ fsok = 1; -+ } -+ } else if (current->acl->group_trans_type & GR_ID_DENY) { -+ for (i = 0; i < num; i++) { -+ curgid = (int)gidlist[i]; -+ if (real == curgid) -+ break; -+ if (effective == curgid) -+ break; -+ if (fs == curgid) -+ break; -+ } -+ /* not in deny list */ -+ if (i == num) { -+ realok = 1; -+ effectiveok = 1; -+ fsok = 1; -+ } -+ } -+ -+ if (realok && effectiveok && fsok) -+ return 0; -+ else { -+ gr_log_int(GR_DONT_AUDIT, GR_GRPCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : fs) : effective) : real); -+ return 1; -+ } -+} -+ -+extern int gr_acl_is_capable(const int cap); -+ -+void -+gr_set_role_label(struct task_struct *task, const uid_t uid, const uid_t gid) -+{ -+ struct acl_role_label *role = task->role; -+ struct acl_subject_label *subj = NULL; -+ struct acl_object_label *obj; -+ struct file *filp; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return; -+ -+ filp = task->exec_file; -+ -+ /* kernel process, we'll give them the kernel role */ -+ if (unlikely(!filp)) { -+ task->role = kernel_role; -+ task->acl = kernel_role->root_label; -+ return; -+ } else if (!task->role || !(task->role->roletype & GR_ROLE_SPECIAL)) -+ role = lookup_acl_role_label(task, uid, gid); -+ -+ /* don't change the role if we're not a privileged process */ -+ if (role && task->role != role && -+ (((role->roletype & GR_ROLE_USER) && !gr_acl_is_capable(CAP_SETUID)) || -+ ((role->roletype & GR_ROLE_GROUP) && !gr_acl_is_capable(CAP_SETGID)))) -+ return; -+ -+ /* perform subject lookup in possibly new role -+ we can use this result below in the case where role == task->role -+ */ -+ subj = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, role); -+ -+ /* if we changed uid/gid, but result in the same role -+ and are using inheritance, don't lose the inherited subject -+ if current subject is other than what normal lookup -+ would result in, we arrived via inheritance, don't -+ lose subject -+ */ -+ if (role != task->role || (!(task->acl->mode & GR_INHERITLEARN) && -+ (subj == task->acl))) -+ task->acl = subj; -+ -+ task->role = role; -+ -+ task->is_writable = 0; -+ -+ /* ignore additional mmap checks for processes that are writable -+ by the default ACL */ -+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label); -+ if (unlikely(obj->mode & GR_WRITE)) -+ task->is_writable = 1; -+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label); -+ if (unlikely(obj->mode & GR_WRITE)) -+ task->is_writable = 1; -+ -+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG -+ printk(KERN_ALERT "Set role label for (%s:%d): role:%s, subject:%s\n", task->comm, task->pid, task->role->rolename, task->acl->filename); -+#endif -+ -+ gr_set_proc_res(task); -+ -+ return; -+} -+ -+int -+gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt, -+ const int unsafe_flags) -+{ -+ struct task_struct *task = current; -+ struct acl_subject_label *newacl; -+ struct acl_object_label *obj; -+ __u32 retmode; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return 0; -+ -+ newacl = chk_subj_label(dentry, mnt, task->role); -+ -+ /* special handling for if we did an strace -f -p <pid> from an admin role, where pid then -+ did an exec -+ */ -+ rcu_read_lock(); -+ read_lock(&tasklist_lock); -+ if (task->ptrace && task->parent && ((task->parent->role->roletype & GR_ROLE_GOD) || -+ (task->parent->acl->mode & GR_POVERRIDE))) { -+ read_unlock(&tasklist_lock); -+ rcu_read_unlock(); -+ goto skip_check; -+ } -+ read_unlock(&tasklist_lock); -+ rcu_read_unlock(); -+ -+ if (unsafe_flags && !(task->acl->mode & GR_POVERRIDE) && (task->acl != newacl) && -+ !(task->role->roletype & GR_ROLE_GOD) && -+ !gr_search_file(dentry, GR_PTRACERD, mnt) && -+ !(task->acl->mode & (GR_LEARN | GR_INHERITLEARN))) { -+ if (unsafe_flags & LSM_UNSAFE_SHARE) -+ gr_log_fs_generic(GR_DONT_AUDIT, GR_UNSAFESHARE_EXEC_ACL_MSG, dentry, mnt); -+ else -+ gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_EXEC_ACL_MSG, dentry, mnt); -+ return -EACCES; -+ } -+ -+skip_check: -+ -+ obj = chk_obj_label(dentry, mnt, task->acl); -+ retmode = obj->mode & (GR_INHERIT | GR_AUDIT_INHERIT); -+ -+ if (!(task->acl->mode & GR_INHERITLEARN) && -+ ((newacl->mode & GR_LEARN) || !(retmode & GR_INHERIT))) { -+ if (obj->nested) -+ task->acl = obj->nested; -+ else -+ task->acl = newacl; -+ } else if (retmode & GR_INHERIT && retmode & GR_AUDIT_INHERIT) -+ gr_log_str_fs(GR_DO_AUDIT, GR_INHERIT_ACL_MSG, task->acl->filename, dentry, mnt); -+ -+ task->is_writable = 0; -+ -+ /* ignore additional mmap checks for processes that are writable -+ by the default ACL */ -+ obj = chk_obj_label(dentry, mnt, default_role->root_label); -+ if (unlikely(obj->mode & GR_WRITE)) -+ task->is_writable = 1; -+ obj = chk_obj_label(dentry, mnt, task->role->root_label); -+ if (unlikely(obj->mode & GR_WRITE)) -+ task->is_writable = 1; -+ -+ gr_set_proc_res(task); -+ -+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG -+ printk(KERN_ALERT "Set subject label for (%s:%d): role:%s, subject:%s\n", task->comm, task->pid, task->role->rolename, task->acl->filename); -+#endif -+ return 0; -+} -+ -+/* always called with valid inodev ptr */ -+static void -+do_handle_delete(struct inodev_entry *inodev, const ino_t ino, const dev_t dev) -+{ -+ struct acl_object_label *matchpo; -+ struct acl_subject_label *matchps; -+ struct acl_subject_label *subj; -+ struct acl_role_label *role; -+ unsigned int x; -+ -+ FOR_EACH_ROLE_START(role) -+ FOR_EACH_SUBJECT_START(role, subj, x) -+ if ((matchpo = lookup_acl_obj_label(ino, dev, subj)) != NULL) -+ matchpo->mode |= GR_DELETED; -+ FOR_EACH_SUBJECT_END(subj,x) -+ FOR_EACH_NESTED_SUBJECT_START(role, subj) -+ if (subj->inode == ino && subj->device == dev) -+ subj->mode |= GR_DELETED; -+ FOR_EACH_NESTED_SUBJECT_END(subj) -+ if ((matchps = lookup_acl_subj_label(ino, dev, role)) != NULL) -+ matchps->mode |= GR_DELETED; -+ FOR_EACH_ROLE_END(role) -+ -+ inodev->nentry->deleted = 1; -+ -+ return; -+} -+ -+void -+gr_handle_delete(const ino_t ino, const dev_t dev) -+{ -+ struct inodev_entry *inodev; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return; -+ -+ write_lock(&gr_inode_lock); -+ inodev = lookup_inodev_entry(ino, dev); -+ if (inodev != NULL) -+ do_handle_delete(inodev, ino, dev); -+ write_unlock(&gr_inode_lock); -+ -+ return; -+} -+ -+static void -+update_acl_obj_label(const ino_t oldinode, const dev_t olddevice, -+ const ino_t newinode, const dev_t newdevice, -+ struct acl_subject_label *subj) -+{ -+ unsigned int index = fhash(oldinode, olddevice, subj->obj_hash_size); -+ struct acl_object_label *match; -+ -+ match = subj->obj_hash[index]; -+ -+ while (match && (match->inode != oldinode || -+ match->device != olddevice || -+ !(match->mode & GR_DELETED))) -+ match = match->next; -+ -+ if (match && (match->inode == oldinode) -+ && (match->device == olddevice) -+ && (match->mode & GR_DELETED)) { -+ if (match->prev == NULL) { -+ subj->obj_hash[index] = match->next; -+ if (match->next != NULL) -+ match->next->prev = NULL; -+ } else { -+ match->prev->next = match->next; -+ if (match->next != NULL) -+ match->next->prev = match->prev; -+ } -+ match->prev = NULL; -+ match->next = NULL; -+ match->inode = newinode; -+ match->device = newdevice; -+ match->mode &= ~GR_DELETED; -+ -+ insert_acl_obj_label(match, subj); -+ } -+ -+ return; -+} -+ -+static void -+update_acl_subj_label(const ino_t oldinode, const dev_t olddevice, -+ const ino_t newinode, const dev_t newdevice, -+ struct acl_role_label *role) -+{ -+ unsigned int index = fhash(oldinode, olddevice, role->subj_hash_size); -+ struct acl_subject_label *match; -+ -+ match = role->subj_hash[index]; -+ -+ while (match && (match->inode != oldinode || -+ match->device != olddevice || -+ !(match->mode & GR_DELETED))) -+ match = match->next; -+ -+ if (match && (match->inode == oldinode) -+ && (match->device == olddevice) -+ && (match->mode & GR_DELETED)) { -+ if (match->prev == NULL) { -+ role->subj_hash[index] = match->next; -+ if (match->next != NULL) -+ match->next->prev = NULL; -+ } else { -+ match->prev->next = match->next; -+ if (match->next != NULL) -+ match->next->prev = match->prev; -+ } -+ match->prev = NULL; -+ match->next = NULL; -+ match->inode = newinode; -+ match->device = newdevice; -+ match->mode &= ~GR_DELETED; -+ -+ insert_acl_subj_label(match, role); -+ } -+ -+ return; -+} -+ -+static void -+update_inodev_entry(const ino_t oldinode, const dev_t olddevice, -+ const ino_t newinode, const dev_t newdevice) -+{ -+ unsigned int index = fhash(oldinode, olddevice, inodev_set.i_size); -+ struct inodev_entry *match; -+ -+ match = inodev_set.i_hash[index]; -+ -+ while (match && (match->nentry->inode != oldinode || -+ match->nentry->device != olddevice || !match->nentry->deleted)) -+ match = match->next; -+ -+ if (match && (match->nentry->inode == oldinode) -+ && (match->nentry->device == olddevice) && -+ match->nentry->deleted) { -+ if (match->prev == NULL) { -+ inodev_set.i_hash[index] = match->next; -+ if (match->next != NULL) -+ match->next->prev = NULL; -+ } else { -+ match->prev->next = match->next; -+ if (match->next != NULL) -+ match->next->prev = match->prev; -+ } -+ match->prev = NULL; -+ match->next = NULL; -+ match->nentry->inode = newinode; -+ match->nentry->device = newdevice; -+ match->nentry->deleted = 0; -+ -+ insert_inodev_entry(match); -+ } -+ -+ return; -+} -+ -+static void -+__do_handle_create(const struct name_entry *matchn, ino_t ino, dev_t dev) -+{ -+ struct acl_subject_label *subj; -+ struct acl_role_label *role; -+ unsigned int x; -+ -+ FOR_EACH_ROLE_START(role) -+ update_acl_subj_label(matchn->inode, matchn->device, ino, dev, role); -+ -+ FOR_EACH_NESTED_SUBJECT_START(role, subj) -+ if ((subj->inode == ino) && (subj->device == dev)) { -+ subj->inode = ino; -+ subj->device = dev; -+ } -+ FOR_EACH_NESTED_SUBJECT_END(subj) -+ FOR_EACH_SUBJECT_START(role, subj, x) -+ update_acl_obj_label(matchn->inode, matchn->device, -+ ino, dev, subj); -+ FOR_EACH_SUBJECT_END(subj,x) -+ FOR_EACH_ROLE_END(role) -+ -+ update_inodev_entry(matchn->inode, matchn->device, ino, dev); -+ -+ return; -+} -+ -+static void -+do_handle_create(const struct name_entry *matchn, const struct dentry *dentry, -+ const struct vfsmount *mnt) -+{ -+ ino_t ino = dentry->d_inode->i_ino; -+ dev_t dev = __get_dev(dentry); -+ -+ __do_handle_create(matchn, ino, dev); -+ -+ return; -+} -+ -+void -+gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ struct name_entry *matchn; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return; -+ -+ preempt_disable(); -+ matchn = lookup_name_entry(gr_to_filename_rbac(dentry, mnt)); -+ -+ if (unlikely((unsigned long)matchn)) { -+ write_lock(&gr_inode_lock); -+ do_handle_create(matchn, dentry, mnt); -+ write_unlock(&gr_inode_lock); -+ } -+ preempt_enable(); -+ -+ return; -+} -+ -+void -+gr_handle_proc_create(const struct dentry *dentry, const struct inode *inode) -+{ -+ struct name_entry *matchn; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return; -+ -+ preempt_disable(); -+ matchn = lookup_name_entry(gr_to_proc_filename_rbac(dentry, init_pid_ns.proc_mnt)); -+ -+ if (unlikely((unsigned long)matchn)) { -+ write_lock(&gr_inode_lock); -+ __do_handle_create(matchn, inode->i_ino, inode->i_sb->s_dev); -+ write_unlock(&gr_inode_lock); -+ } -+ preempt_enable(); -+ -+ return; -+} -+ -+void -+gr_handle_rename(struct inode *old_dir, struct inode *new_dir, -+ struct dentry *old_dentry, -+ struct dentry *new_dentry, -+ struct vfsmount *mnt, const __u8 replace) -+{ -+ struct name_entry *matchn; -+ struct inodev_entry *inodev; -+ struct inode *inode = new_dentry->d_inode; -+ ino_t old_ino = old_dentry->d_inode->i_ino; -+ dev_t old_dev = __get_dev(old_dentry); -+ -+ /* vfs_rename swaps the name and parent link for old_dentry and -+ new_dentry -+ at this point, old_dentry has the new name, parent link, and inode -+ for the renamed file -+ if a file is being replaced by a rename, new_dentry has the inode -+ and name for the replaced file -+ */ -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return; -+ -+ preempt_disable(); -+ matchn = lookup_name_entry(gr_to_filename_rbac(old_dentry, mnt)); -+ -+ /* we wouldn't have to check d_inode if it weren't for -+ NFS silly-renaming -+ */ -+ -+ write_lock(&gr_inode_lock); -+ if (unlikely(replace && inode)) { -+ ino_t new_ino = inode->i_ino; -+ dev_t new_dev = __get_dev(new_dentry); -+ -+ inodev = lookup_inodev_entry(new_ino, new_dev); -+ if (inodev != NULL && ((inode->i_nlink <= 1) || S_ISDIR(inode->i_mode))) -+ do_handle_delete(inodev, new_ino, new_dev); -+ } -+ -+ inodev = lookup_inodev_entry(old_ino, old_dev); -+ if (inodev != NULL && ((old_dentry->d_inode->i_nlink <= 1) || S_ISDIR(old_dentry->d_inode->i_mode))) -+ do_handle_delete(inodev, old_ino, old_dev); -+ -+ if (unlikely((unsigned long)matchn)) -+ do_handle_create(matchn, old_dentry, mnt); -+ -+ write_unlock(&gr_inode_lock); -+ preempt_enable(); -+ -+ return; -+} -+ -+static int -+lookup_special_role_auth(__u16 mode, const char *rolename, unsigned char **salt, -+ unsigned char **sum) -+{ -+ struct acl_role_label *r; -+ struct role_allowed_ip *ipp; -+ struct role_transition *trans; -+ unsigned int i; -+ int found = 0; -+ u32 curr_ip = current->signal->curr_ip; -+ -+ current->signal->saved_ip = curr_ip; -+ -+ /* check transition table */ -+ -+ for (trans = current->role->transitions; trans; trans = trans->next) { -+ if (!strcmp(rolename, trans->rolename)) { -+ found = 1; -+ break; -+ } -+ } -+ -+ if (!found) -+ return 0; -+ -+ /* handle special roles that do not require authentication -+ and check ip */ -+ -+ FOR_EACH_ROLE_START(r) -+ if (!strcmp(rolename, r->rolename) && -+ (r->roletype & GR_ROLE_SPECIAL)) { -+ found = 0; -+ if (r->allowed_ips != NULL) { -+ for (ipp = r->allowed_ips; ipp; ipp = ipp->next) { -+ if ((ntohl(curr_ip) & ipp->netmask) == -+ (ntohl(ipp->addr) & ipp->netmask)) -+ found = 1; -+ } -+ } else -+ found = 2; -+ if (!found) -+ return 0; -+ -+ if (((mode == GR_SPROLE) && (r->roletype & GR_ROLE_NOPW)) || -+ ((mode == GR_SPROLEPAM) && (r->roletype & GR_ROLE_PAM))) { -+ *salt = NULL; -+ *sum = NULL; -+ return 1; -+ } -+ } -+ FOR_EACH_ROLE_END(r) -+ -+ for (i = 0; i < num_sprole_pws; i++) { -+ if (!strcmp(rolename, acl_special_roles[i]->rolename)) { -+ *salt = acl_special_roles[i]->salt; -+ *sum = acl_special_roles[i]->sum; -+ return 1; -+ } -+ } -+ -+ return 0; -+} -+ -+static void -+assign_special_role(char *rolename) -+{ -+ struct acl_object_label *obj; -+ struct acl_role_label *r; -+ struct acl_role_label *assigned = NULL; -+ struct task_struct *tsk; -+ struct file *filp; -+ -+ FOR_EACH_ROLE_START(r) -+ if (!strcmp(rolename, r->rolename) && -+ (r->roletype & GR_ROLE_SPECIAL)) { -+ assigned = r; -+ break; -+ } -+ FOR_EACH_ROLE_END(r) -+ -+ if (!assigned) -+ return; -+ -+ read_lock(&tasklist_lock); -+ read_lock(&grsec_exec_file_lock); -+ -+ tsk = current->real_parent; -+ if (tsk == NULL) -+ goto out_unlock; -+ -+ filp = tsk->exec_file; -+ if (filp == NULL) -+ goto out_unlock; -+ -+ tsk->is_writable = 0; -+ -+ tsk->acl_sp_role = 1; -+ tsk->acl_role_id = ++acl_sp_role_value; -+ tsk->role = assigned; -+ tsk->acl = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role); -+ -+ /* ignore additional mmap checks for processes that are writable -+ by the default ACL */ -+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label); -+ if (unlikely(obj->mode & GR_WRITE)) -+ tsk->is_writable = 1; -+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role->root_label); -+ if (unlikely(obj->mode & GR_WRITE)) -+ tsk->is_writable = 1; -+ -+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG -+ printk(KERN_ALERT "Assigning special role:%s subject:%s to process (%s:%d)\n", tsk->role->rolename, tsk->acl->filename, tsk->comm, tsk->pid); -+#endif -+ -+out_unlock: -+ read_unlock(&grsec_exec_file_lock); -+ read_unlock(&tasklist_lock); -+ return; -+} -+ -+int gr_check_secure_terminal(struct task_struct *task) -+{ -+ struct task_struct *p, *p2, *p3; -+ struct files_struct *files; -+ struct fdtable *fdt; -+ struct file *our_file = NULL, *file; -+ int i; -+ -+ if (task->signal->tty == NULL) -+ return 1; -+ -+ files = get_files_struct(task); -+ if (files != NULL) { -+ rcu_read_lock(); -+ fdt = files_fdtable(files); -+ for (i=0; i < fdt->max_fds; i++) { -+ file = fcheck_files(files, i); -+ if (file && (our_file == NULL) && (file->private_data == task->signal->tty)) { -+ get_file(file); -+ our_file = file; -+ } -+ } -+ rcu_read_unlock(); -+ put_files_struct(files); -+ } -+ -+ if (our_file == NULL) -+ return 1; -+ -+ read_lock(&tasklist_lock); -+ do_each_thread(p2, p) { -+ files = get_files_struct(p); -+ if (files == NULL || -+ (p->signal && p->signal->tty == task->signal->tty)) { -+ if (files != NULL) -+ put_files_struct(files); -+ continue; -+ } -+ rcu_read_lock(); -+ fdt = files_fdtable(files); -+ for (i=0; i < fdt->max_fds; i++) { -+ file = fcheck_files(files, i); -+ if (file && S_ISCHR(file->f_path.dentry->d_inode->i_mode) && -+ file->f_path.dentry->d_inode->i_rdev == our_file->f_path.dentry->d_inode->i_rdev) { -+ p3 = task; -+ while (p3->pid > 0) { -+ if (p3 == p) -+ break; -+ p3 = p3->real_parent; -+ } -+ if (p3 == p) -+ break; -+ gr_log_ttysniff(GR_DONT_AUDIT_GOOD, GR_TTYSNIFF_ACL_MSG, p); -+ gr_handle_alertkill(p); -+ rcu_read_unlock(); -+ put_files_struct(files); -+ read_unlock(&tasklist_lock); -+ fput(our_file); -+ return 0; -+ } -+ } -+ rcu_read_unlock(); -+ put_files_struct(files); -+ } while_each_thread(p2, p); -+ read_unlock(&tasklist_lock); -+ -+ fput(our_file); -+ return 1; -+} -+ -+ssize_t -+write_grsec_handler(struct file *file, const char * buf, size_t count, loff_t *ppos) -+{ -+ struct gr_arg_wrapper uwrap; -+ unsigned char *sprole_salt = NULL; -+ unsigned char *sprole_sum = NULL; -+ int error = sizeof (struct gr_arg_wrapper); -+ int error2 = 0; -+ -+ mutex_lock(&gr_dev_mutex); -+ -+ if ((gr_status & GR_READY) && !(current->acl->mode & GR_KERNELAUTH)) { -+ error = -EPERM; -+ goto out; -+ } -+ -+ if (count != sizeof (struct gr_arg_wrapper)) { -+ gr_log_int_int(GR_DONT_AUDIT_GOOD, GR_DEV_ACL_MSG, (int)count, (int)sizeof(struct gr_arg_wrapper)); -+ error = -EINVAL; -+ goto out; -+ } -+ -+ -+ if (gr_auth_expires && time_after_eq(get_seconds(), gr_auth_expires)) { -+ gr_auth_expires = 0; -+ gr_auth_attempts = 0; -+ } -+ -+ if (copy_from_user(&uwrap, buf, sizeof (struct gr_arg_wrapper))) { -+ error = -EFAULT; -+ goto out; -+ } -+ -+ if ((uwrap.version != GRSECURITY_VERSION) || (uwrap.size != sizeof(struct gr_arg))) { -+ error = -EINVAL; -+ goto out; -+ } -+ -+ if (copy_from_user(gr_usermode, uwrap.arg, sizeof (struct gr_arg))) { -+ error = -EFAULT; -+ goto out; -+ } -+ -+ if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_SPROLEPAM && -+ gr_auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES && -+ time_after(gr_auth_expires, get_seconds())) { -+ error = -EBUSY; -+ goto out; -+ } -+ -+ /* if non-root trying to do anything other than use a special role, -+ do not attempt authentication, do not count towards authentication -+ locking -+ */ -+ -+ if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_STATUS && -+ gr_usermode->mode != GR_UNSPROLE && gr_usermode->mode != GR_SPROLEPAM && -+ current_uid()) { -+ error = -EPERM; -+ goto out; -+ } -+ -+ /* ensure pw and special role name are null terminated */ -+ -+ gr_usermode->pw[GR_PW_LEN - 1] = '\0'; -+ gr_usermode->sp_role[GR_SPROLE_LEN - 1] = '\0'; -+ -+ /* Okay. -+ * We have our enough of the argument structure..(we have yet -+ * to copy_from_user the tables themselves) . Copy the tables -+ * only if we need them, i.e. for loading operations. */ -+ -+ switch (gr_usermode->mode) { -+ case GR_STATUS: -+ if (gr_status & GR_READY) { -+ error = 1; -+ if (!gr_check_secure_terminal(current)) -+ error = 3; -+ } else -+ error = 2; -+ goto out; -+ case GR_SHUTDOWN: -+ if ((gr_status & GR_READY) -+ && !(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) { -+ pax_open_kernel(); -+ gr_status &= ~GR_READY; -+ pax_close_kernel(); -+ -+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTS_ACL_MSG); -+ free_variables(); -+ memset(gr_usermode, 0, sizeof (struct gr_arg)); -+ memset(gr_system_salt, 0, GR_SALT_LEN); -+ memset(gr_system_sum, 0, GR_SHA_LEN); -+ } else if (gr_status & GR_READY) { -+ gr_log_noargs(GR_DONT_AUDIT, GR_SHUTF_ACL_MSG); -+ error = -EPERM; -+ } else { -+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTI_ACL_MSG); -+ error = -EAGAIN; -+ } -+ break; -+ case GR_ENABLE: -+ if (!(gr_status & GR_READY) && !(error2 = gracl_init(gr_usermode))) -+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_ENABLE_ACL_MSG, GR_VERSION); -+ else { -+ if (gr_status & GR_READY) -+ error = -EAGAIN; -+ else -+ error = error2; -+ gr_log_str(GR_DONT_AUDIT, GR_ENABLEF_ACL_MSG, GR_VERSION); -+ } -+ break; -+ case GR_RELOAD: -+ if (!(gr_status & GR_READY)) { -+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOADI_ACL_MSG, GR_VERSION); -+ error = -EAGAIN; -+ } else if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) { -+ preempt_disable(); -+ -+ pax_open_kernel(); -+ gr_status &= ~GR_READY; -+ pax_close_kernel(); -+ -+ free_variables(); -+ if (!(error2 = gracl_init(gr_usermode))) { -+ preempt_enable(); -+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOAD_ACL_MSG, GR_VERSION); -+ } else { -+ preempt_enable(); -+ error = error2; -+ gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION); -+ } -+ } else { -+ gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION); -+ error = -EPERM; -+ } -+ break; -+ case GR_SEGVMOD: -+ if (unlikely(!(gr_status & GR_READY))) { -+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODI_ACL_MSG); -+ error = -EAGAIN; -+ break; -+ } -+ -+ if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) { -+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODS_ACL_MSG); -+ if (gr_usermode->segv_device && gr_usermode->segv_inode) { -+ struct acl_subject_label *segvacl; -+ segvacl = -+ lookup_acl_subj_label(gr_usermode->segv_inode, -+ gr_usermode->segv_device, -+ current->role); -+ if (segvacl) { -+ segvacl->crashes = 0; -+ segvacl->expires = 0; -+ } -+ } else if (gr_find_uid(gr_usermode->segv_uid) >= 0) { -+ gr_remove_uid(gr_usermode->segv_uid); -+ } -+ } else { -+ gr_log_noargs(GR_DONT_AUDIT, GR_SEGVMODF_ACL_MSG); -+ error = -EPERM; -+ } -+ break; -+ case GR_SPROLE: -+ case GR_SPROLEPAM: -+ if (unlikely(!(gr_status & GR_READY))) { -+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SPROLEI_ACL_MSG); -+ error = -EAGAIN; -+ break; -+ } -+ -+ if (current->role->expires && time_after_eq(get_seconds(), current->role->expires)) { -+ current->role->expires = 0; -+ current->role->auth_attempts = 0; -+ } -+ -+ if (current->role->auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES && -+ time_after(current->role->expires, get_seconds())) { -+ error = -EBUSY; -+ goto out; -+ } -+ -+ if (lookup_special_role_auth -+ (gr_usermode->mode, gr_usermode->sp_role, &sprole_salt, &sprole_sum) -+ && ((!sprole_salt && !sprole_sum) -+ || !(chkpw(gr_usermode, sprole_salt, sprole_sum)))) { -+ char *p = ""; -+ assign_special_role(gr_usermode->sp_role); -+ read_lock(&tasklist_lock); -+ if (current->real_parent) -+ p = current->real_parent->role->rolename; -+ read_unlock(&tasklist_lock); -+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLES_ACL_MSG, -+ p, acl_sp_role_value); -+ } else { -+ gr_log_str(GR_DONT_AUDIT, GR_SPROLEF_ACL_MSG, gr_usermode->sp_role); -+ error = -EPERM; -+ if(!(current->role->auth_attempts++)) -+ current->role->expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT; -+ -+ goto out; -+ } -+ break; -+ case GR_UNSPROLE: -+ if (unlikely(!(gr_status & GR_READY))) { -+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_UNSPROLEI_ACL_MSG); -+ error = -EAGAIN; -+ break; -+ } -+ -+ if (current->role->roletype & GR_ROLE_SPECIAL) { -+ char *p = ""; -+ int i = 0; -+ -+ read_lock(&tasklist_lock); -+ if (current->real_parent) { -+ p = current->real_parent->role->rolename; -+ i = current->real_parent->acl_role_id; -+ } -+ read_unlock(&tasklist_lock); -+ -+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_UNSPROLES_ACL_MSG, p, i); -+ gr_set_acls(1); -+ } else { -+ error = -EPERM; -+ goto out; -+ } -+ break; -+ default: -+ gr_log_int(GR_DONT_AUDIT, GR_INVMODE_ACL_MSG, gr_usermode->mode); -+ error = -EINVAL; -+ break; -+ } -+ -+ if (error != -EPERM) -+ goto out; -+ -+ if(!(gr_auth_attempts++)) -+ gr_auth_expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT; -+ -+ out: -+ mutex_unlock(&gr_dev_mutex); -+ return error; -+} -+ -+/* must be called with -+ rcu_read_lock(); -+ read_lock(&tasklist_lock); -+ read_lock(&grsec_exec_file_lock); -+*/ -+int gr_apply_subject_to_task(struct task_struct *task) -+{ -+ struct acl_object_label *obj; -+ char *tmpname; -+ struct acl_subject_label *tmpsubj; -+ struct file *filp; -+ struct name_entry *nmatch; -+ -+ filp = task->exec_file; -+ if (filp == NULL) -+ return 0; -+ -+ /* the following is to apply the correct subject -+ on binaries running when the RBAC system -+ is enabled, when the binaries have been -+ replaced or deleted since their execution -+ ----- -+ when the RBAC system starts, the inode/dev -+ from exec_file will be one the RBAC system -+ is unaware of. It only knows the inode/dev -+ of the present file on disk, or the absence -+ of it. -+ */ -+ preempt_disable(); -+ tmpname = gr_to_filename_rbac(filp->f_path.dentry, filp->f_path.mnt); -+ -+ nmatch = lookup_name_entry(tmpname); -+ preempt_enable(); -+ tmpsubj = NULL; -+ if (nmatch) { -+ if (nmatch->deleted) -+ tmpsubj = lookup_acl_subj_label_deleted(nmatch->inode, nmatch->device, task->role); -+ else -+ tmpsubj = lookup_acl_subj_label(nmatch->inode, nmatch->device, task->role); -+ if (tmpsubj != NULL) -+ task->acl = tmpsubj; -+ } -+ if (tmpsubj == NULL) -+ task->acl = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, -+ task->role); -+ if (task->acl) { -+ task->is_writable = 0; -+ /* ignore additional mmap checks for processes that are writable -+ by the default ACL */ -+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label); -+ if (unlikely(obj->mode & GR_WRITE)) -+ task->is_writable = 1; -+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label); -+ if (unlikely(obj->mode & GR_WRITE)) -+ task->is_writable = 1; -+ -+ gr_set_proc_res(task); -+ -+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG -+ printk(KERN_ALERT "gr_set_acls for (%s:%d): role:%s, subject:%s\n", task->comm, task->pid, task->role->rolename, task->acl->filename); -+#endif -+ } else { -+ return 1; -+ } -+ -+ return 0; -+} -+ -+int -+gr_set_acls(const int type) -+{ -+ struct task_struct *task, *task2; -+ struct acl_role_label *role = current->role; -+ __u16 acl_role_id = current->acl_role_id; -+ const struct cred *cred; -+ int ret; -+ -+ rcu_read_lock(); -+ read_lock(&tasklist_lock); -+ read_lock(&grsec_exec_file_lock); -+ do_each_thread(task2, task) { -+ /* check to see if we're called from the exit handler, -+ if so, only replace ACLs that have inherited the admin -+ ACL */ -+ -+ if (type && (task->role != role || -+ task->acl_role_id != acl_role_id)) -+ continue; -+ -+ task->acl_role_id = 0; -+ task->acl_sp_role = 0; -+ -+ if (task->exec_file) { -+ cred = __task_cred(task); -+ task->role = lookup_acl_role_label(task, cred->uid, cred->gid); -+ ret = gr_apply_subject_to_task(task); -+ if (ret) { -+ read_unlock(&grsec_exec_file_lock); -+ read_unlock(&tasklist_lock); -+ rcu_read_unlock(); -+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_DEFACL_MSG, task->comm, task->pid); -+ return ret; -+ } -+ } else { -+ // it's a kernel process -+ task->role = kernel_role; -+ task->acl = kernel_role->root_label; -+#ifdef CONFIG_GRKERNSEC_ACL_HIDEKERN -+ task->acl->mode &= ~GR_PROCFIND; -+#endif -+ } -+ } while_each_thread(task2, task); -+ read_unlock(&grsec_exec_file_lock); -+ read_unlock(&tasklist_lock); -+ rcu_read_unlock(); -+ -+ return 0; -+} -+ -+void -+gr_learn_resource(const struct task_struct *task, -+ const int res, const unsigned long wanted, const int gt) -+{ -+ struct acl_subject_label *acl; -+ const struct cred *cred; -+ -+ if (unlikely((gr_status & GR_READY) && -+ task->acl && (task->acl->mode & (GR_LEARN | GR_INHERITLEARN)))) -+ goto skip_reslog; -+ -+#ifdef CONFIG_GRKERNSEC_RESLOG -+ gr_log_resource(task, res, wanted, gt); -+#endif -+ skip_reslog: -+ -+ if (unlikely(!(gr_status & GR_READY) || !wanted || res >= GR_NLIMITS)) -+ return; -+ -+ acl = task->acl; -+ -+ if (likely(!acl || !(acl->mode & (GR_LEARN | GR_INHERITLEARN)) || -+ !(acl->resmask & (1 << (unsigned short) res)))) -+ return; -+ -+ if (wanted >= acl->res[res].rlim_cur) { -+ unsigned long res_add; -+ -+ res_add = wanted; -+ switch (res) { -+ case RLIMIT_CPU: -+ res_add += GR_RLIM_CPU_BUMP; -+ break; -+ case RLIMIT_FSIZE: -+ res_add += GR_RLIM_FSIZE_BUMP; -+ break; -+ case RLIMIT_DATA: -+ res_add += GR_RLIM_DATA_BUMP; -+ break; -+ case RLIMIT_STACK: -+ res_add += GR_RLIM_STACK_BUMP; -+ break; -+ case RLIMIT_CORE: -+ res_add += GR_RLIM_CORE_BUMP; -+ break; -+ case RLIMIT_RSS: -+ res_add += GR_RLIM_RSS_BUMP; -+ break; -+ case RLIMIT_NPROC: -+ res_add += GR_RLIM_NPROC_BUMP; -+ break; -+ case RLIMIT_NOFILE: -+ res_add += GR_RLIM_NOFILE_BUMP; -+ break; -+ case RLIMIT_MEMLOCK: -+ res_add += GR_RLIM_MEMLOCK_BUMP; -+ break; -+ case RLIMIT_AS: -+ res_add += GR_RLIM_AS_BUMP; -+ break; -+ case RLIMIT_LOCKS: -+ res_add += GR_RLIM_LOCKS_BUMP; -+ break; -+ case RLIMIT_SIGPENDING: -+ res_add += GR_RLIM_SIGPENDING_BUMP; -+ break; -+ case RLIMIT_MSGQUEUE: -+ res_add += GR_RLIM_MSGQUEUE_BUMP; -+ break; -+ case RLIMIT_NICE: -+ res_add += GR_RLIM_NICE_BUMP; -+ break; -+ case RLIMIT_RTPRIO: -+ res_add += GR_RLIM_RTPRIO_BUMP; -+ break; -+ case RLIMIT_RTTIME: -+ res_add += GR_RLIM_RTTIME_BUMP; -+ break; -+ } -+ -+ acl->res[res].rlim_cur = res_add; -+ -+ if (wanted > acl->res[res].rlim_max) -+ acl->res[res].rlim_max = res_add; -+ -+ /* only log the subject filename, since resource logging is supported for -+ single-subject learning only */ -+ rcu_read_lock(); -+ cred = __task_cred(task); -+ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, -+ task->role->roletype, cred->uid, cred->gid, acl->filename, -+ acl->filename, acl->res[res].rlim_cur, acl->res[res].rlim_max, -+ "", (unsigned long) res, &task->signal->saved_ip); -+ rcu_read_unlock(); -+ } -+ -+ return; -+} -+ -+#if defined(CONFIG_PAX_HAVE_ACL_FLAGS) && (defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)) -+void -+pax_set_initial_flags(struct linux_binprm *bprm) -+{ -+ struct task_struct *task = current; -+ struct acl_subject_label *proc; -+ unsigned long flags; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return; -+ -+ flags = pax_get_flags(task); -+ -+ proc = task->acl; -+ -+ if (proc->pax_flags & GR_PAX_DISABLE_PAGEEXEC) -+ flags &= ~MF_PAX_PAGEEXEC; -+ if (proc->pax_flags & GR_PAX_DISABLE_SEGMEXEC) -+ flags &= ~MF_PAX_SEGMEXEC; -+ if (proc->pax_flags & GR_PAX_DISABLE_RANDMMAP) -+ flags &= ~MF_PAX_RANDMMAP; -+ if (proc->pax_flags & GR_PAX_DISABLE_EMUTRAMP) -+ flags &= ~MF_PAX_EMUTRAMP; -+ if (proc->pax_flags & GR_PAX_DISABLE_MPROTECT) -+ flags &= ~MF_PAX_MPROTECT; -+ -+ if (proc->pax_flags & GR_PAX_ENABLE_PAGEEXEC) -+ flags |= MF_PAX_PAGEEXEC; -+ if (proc->pax_flags & GR_PAX_ENABLE_SEGMEXEC) -+ flags |= MF_PAX_SEGMEXEC; -+ if (proc->pax_flags & GR_PAX_ENABLE_RANDMMAP) -+ flags |= MF_PAX_RANDMMAP; -+ if (proc->pax_flags & GR_PAX_ENABLE_EMUTRAMP) -+ flags |= MF_PAX_EMUTRAMP; -+ if (proc->pax_flags & GR_PAX_ENABLE_MPROTECT) -+ flags |= MF_PAX_MPROTECT; -+ -+ pax_set_flags(task, flags); -+ -+ return; -+} -+#endif -+ -+int -+gr_handle_proc_ptrace(struct task_struct *task) -+{ -+ struct file *filp; -+ struct task_struct *tmp = task; -+ struct task_struct *curtemp = current; -+ __u32 retmode; -+ -+#ifndef CONFIG_GRKERNSEC_HARDEN_PTRACE -+ if (unlikely(!(gr_status & GR_READY))) -+ return 0; -+#endif -+ -+ read_lock(&tasklist_lock); -+ read_lock(&grsec_exec_file_lock); -+ filp = task->exec_file; -+ -+ while (tmp->pid > 0) { -+ if (tmp == curtemp) -+ break; -+ tmp = tmp->real_parent; -+ } -+ -+ if (!filp || (tmp->pid == 0 && ((grsec_enable_harden_ptrace && current_uid() && !(gr_status & GR_READY)) || -+ ((gr_status & GR_READY) && !(current->acl->mode & GR_RELAXPTRACE))))) { -+ read_unlock(&grsec_exec_file_lock); -+ read_unlock(&tasklist_lock); -+ return 1; -+ } -+ -+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE -+ if (!(gr_status & GR_READY)) { -+ read_unlock(&grsec_exec_file_lock); -+ read_unlock(&tasklist_lock); -+ return 0; -+ } -+#endif -+ -+ retmode = gr_search_file(filp->f_path.dentry, GR_NOPTRACE, filp->f_path.mnt); -+ read_unlock(&grsec_exec_file_lock); -+ read_unlock(&tasklist_lock); -+ -+ if (retmode & GR_NOPTRACE) -+ return 1; -+ -+ if (!(current->acl->mode & GR_POVERRIDE) && !(current->role->roletype & GR_ROLE_GOD) -+ && (current->acl != task->acl || (current->acl != current->role->root_label -+ && current->pid != task->pid))) -+ return 1; -+ -+ return 0; -+} -+ -+void task_grsec_rbac(struct seq_file *m, struct task_struct *p) -+{ -+ if (unlikely(!(gr_status & GR_READY))) -+ return; -+ -+ if (!(current->role->roletype & GR_ROLE_GOD)) -+ return; -+ -+ seq_printf(m, "RBAC:\t%.64s:%c:%.950s\n", -+ p->role->rolename, gr_task_roletype_to_char(p), -+ p->acl->filename); -+} -+ -+int -+gr_handle_ptrace(struct task_struct *task, const long request) -+{ -+ struct task_struct *tmp = task; -+ struct task_struct *curtemp = current; -+ __u32 retmode; -+ -+#ifndef CONFIG_GRKERNSEC_HARDEN_PTRACE -+ if (unlikely(!(gr_status & GR_READY))) -+ return 0; -+#endif -+ if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) { -+ read_lock(&tasklist_lock); -+ while (tmp->pid > 0) { -+ if (tmp == curtemp) -+ break; -+ tmp = tmp->real_parent; -+ } -+ -+ if (tmp->pid == 0 && ((grsec_enable_harden_ptrace && current_uid() && !(gr_status & GR_READY)) || -+ ((gr_status & GR_READY) && !(current->acl->mode & GR_RELAXPTRACE)))) { -+ read_unlock(&tasklist_lock); -+ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task); -+ return 1; -+ } -+ read_unlock(&tasklist_lock); -+ } -+ -+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE -+ if (!(gr_status & GR_READY)) -+ return 0; -+#endif -+ -+ read_lock(&grsec_exec_file_lock); -+ if (unlikely(!task->exec_file)) { -+ read_unlock(&grsec_exec_file_lock); -+ return 0; -+ } -+ -+ retmode = gr_search_file(task->exec_file->f_path.dentry, GR_PTRACERD | GR_NOPTRACE, task->exec_file->f_path.mnt); -+ read_unlock(&grsec_exec_file_lock); -+ -+ if (retmode & GR_NOPTRACE) { -+ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task); -+ return 1; -+ } -+ -+ if (retmode & GR_PTRACERD) { -+ switch (request) { -+ case PTRACE_SEIZE: -+ case PTRACE_POKETEXT: -+ case PTRACE_POKEDATA: -+ case PTRACE_POKEUSR: -+#if !defined(CONFIG_PPC32) && !defined(CONFIG_PPC64) && !defined(CONFIG_PARISC) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64) -+ case PTRACE_SETREGS: -+ case PTRACE_SETFPREGS: -+#endif -+#ifdef CONFIG_X86 -+ case PTRACE_SETFPXREGS: -+#endif -+#ifdef CONFIG_ALTIVEC -+ case PTRACE_SETVRREGS: -+#endif -+ return 1; -+ default: -+ return 0; -+ } -+ } else if (!(current->acl->mode & GR_POVERRIDE) && -+ !(current->role->roletype & GR_ROLE_GOD) && -+ (current->acl != task->acl)) { -+ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task); -+ return 1; -+ } -+ -+ return 0; -+} -+ -+static int is_writable_mmap(const struct file *filp) -+{ -+ struct task_struct *task = current; -+ struct acl_object_label *obj, *obj2; -+ -+ if (gr_status & GR_READY && !(task->acl->mode & GR_OVERRIDE) && -+ !task->is_writable && S_ISREG(filp->f_path.dentry->d_inode->i_mode) && (filp->f_path.mnt != shm_mnt || (filp->f_path.dentry->d_inode->i_nlink > 0))) { -+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label); -+ obj2 = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, -+ task->role->root_label); -+ if (unlikely((obj->mode & GR_WRITE) || (obj2->mode & GR_WRITE))) { -+ gr_log_fs_generic(GR_DONT_AUDIT, GR_WRITLIB_ACL_MSG, filp->f_path.dentry, filp->f_path.mnt); -+ return 1; -+ } -+ } -+ return 0; -+} -+ -+int -+gr_acl_handle_mmap(const struct file *file, const unsigned long prot) -+{ -+ __u32 mode; -+ -+ if (unlikely(!file || !(prot & PROT_EXEC))) -+ return 1; -+ -+ if (is_writable_mmap(file)) -+ return 0; -+ -+ mode = -+ gr_search_file(file->f_path.dentry, -+ GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS, -+ file->f_path.mnt); -+ -+ if (!gr_tpe_allow(file)) -+ return 0; -+ -+ if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) { -+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt); -+ return 0; -+ } else if (unlikely(!(mode & GR_EXEC))) { -+ return 0; -+ } else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) { -+ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt); -+ return 1; -+ } -+ -+ return 1; -+} -+ -+int -+gr_acl_handle_mprotect(const struct file *file, const unsigned long prot) -+{ -+ __u32 mode; -+ -+ if (unlikely(!file || !(prot & PROT_EXEC))) -+ return 1; -+ -+ if (is_writable_mmap(file)) -+ return 0; -+ -+ mode = -+ gr_search_file(file->f_path.dentry, -+ GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS, -+ file->f_path.mnt); -+ -+ if (!gr_tpe_allow(file)) -+ return 0; -+ -+ if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) { -+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt); -+ return 0; -+ } else if (unlikely(!(mode & GR_EXEC))) { -+ return 0; -+ } else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) { -+ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt); -+ return 1; -+ } -+ -+ return 1; -+} -+ -+void -+gr_acl_handle_psacct(struct task_struct *task, const long code) -+{ -+ unsigned long runtime; -+ unsigned long cputime; -+ unsigned int wday, cday; -+ __u8 whr, chr; -+ __u8 wmin, cmin; -+ __u8 wsec, csec; -+ struct timespec timeval; -+ -+ if (unlikely(!(gr_status & GR_READY) || !task->acl || -+ !(task->acl->mode & GR_PROCACCT))) -+ return; -+ -+ do_posix_clock_monotonic_gettime(&timeval); -+ runtime = timeval.tv_sec - task->start_time.tv_sec; -+ wday = runtime / (3600 * 24); -+ runtime -= wday * (3600 * 24); -+ whr = runtime / 3600; -+ runtime -= whr * 3600; -+ wmin = runtime / 60; -+ runtime -= wmin * 60; -+ wsec = runtime; -+ -+ cputime = (task->utime + task->stime) / HZ; -+ cday = cputime / (3600 * 24); -+ cputime -= cday * (3600 * 24); -+ chr = cputime / 3600; -+ cputime -= chr * 3600; -+ cmin = cputime / 60; -+ cputime -= cmin * 60; -+ csec = cputime; -+ -+ gr_log_procacct(GR_DO_AUDIT, GR_ACL_PROCACCT_MSG, task, wday, whr, wmin, wsec, cday, chr, cmin, csec, code); -+ -+ return; -+} -+ -+void gr_set_kernel_label(struct task_struct *task) -+{ -+ if (gr_status & GR_READY) { -+ task->role = kernel_role; -+ task->acl = kernel_role->root_label; -+ } -+ return; -+} -+ -+#ifdef CONFIG_TASKSTATS -+int gr_is_taskstats_denied(int pid) -+{ -+ struct task_struct *task; -+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ const struct cred *cred; -+#endif -+ int ret = 0; -+ -+ /* restrict taskstats viewing to un-chrooted root users -+ who have the 'view' subject flag if the RBAC system is enabled -+ */ -+ -+ rcu_read_lock(); -+ read_lock(&tasklist_lock); -+ task = find_task_by_vpid(pid); -+ if (task) { -+#ifdef CONFIG_GRKERNSEC_CHROOT -+ if (proc_is_chrooted(task)) -+ ret = -EACCES; -+#endif -+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ cred = __task_cred(task); -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ if (cred->uid != 0) -+ ret = -EACCES; -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ if (cred->uid != 0 && !groups_search(cred->group_info, CONFIG_GRKERNSEC_PROC_GID)) -+ ret = -EACCES; -+#endif -+#endif -+ if (gr_status & GR_READY) { -+ if (!(task->acl->mode & GR_VIEW)) -+ ret = -EACCES; -+ } -+ } else -+ ret = -ENOENT; -+ -+ read_unlock(&tasklist_lock); -+ rcu_read_unlock(); -+ -+ return ret; -+} -+#endif -+ -+/* AUXV entries are filled via a descendant of search_binary_handler -+ after we've already applied the subject for the target -+*/ -+int gr_acl_enable_at_secure(void) -+{ -+ if (unlikely(!(gr_status & GR_READY))) -+ return 0; -+ -+ if (current->acl->mode & GR_ATSECURE) -+ return 1; -+ -+ return 0; -+} -+ -+int gr_acl_handle_filldir(const struct file *file, const char *name, const unsigned int namelen, const ino_t ino) -+{ -+ struct task_struct *task = current; -+ struct dentry *dentry = file->f_path.dentry; -+ struct vfsmount *mnt = file->f_path.mnt; -+ struct acl_object_label *obj, *tmp; -+ struct acl_subject_label *subj; -+ unsigned int bufsize; -+ int is_not_root; -+ char *path; -+ dev_t dev = __get_dev(dentry); -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return 1; -+ -+ if (task->acl->mode & (GR_LEARN | GR_INHERITLEARN)) -+ return 1; -+ -+ /* ignore Eric Biederman */ -+ if (IS_PRIVATE(dentry->d_inode)) -+ return 1; -+ -+ subj = task->acl; -+ do { -+ obj = lookup_acl_obj_label(ino, dev, subj); -+ if (obj != NULL) -+ return (obj->mode & GR_FIND) ? 1 : 0; -+ } while ((subj = subj->parent_subject)); -+ -+ /* this is purely an optimization since we're looking for an object -+ for the directory we're doing a readdir on -+ if it's possible for any globbed object to match the entry we're -+ filling into the directory, then the object we find here will be -+ an anchor point with attached globbed objects -+ */ -+ obj = chk_obj_label_noglob(dentry, mnt, task->acl); -+ if (obj->globbed == NULL) -+ return (obj->mode & GR_FIND) ? 1 : 0; -+ -+ is_not_root = ((obj->filename[0] == '/') && -+ (obj->filename[1] == '\0')) ? 0 : 1; -+ bufsize = PAGE_SIZE - namelen - is_not_root; -+ -+ /* check bufsize > PAGE_SIZE || bufsize == 0 */ -+ if (unlikely((bufsize - 1) > (PAGE_SIZE - 1))) -+ return 1; -+ -+ preempt_disable(); -+ path = d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()), -+ bufsize); -+ -+ bufsize = strlen(path); -+ -+ /* if base is "/", don't append an additional slash */ -+ if (is_not_root) -+ *(path + bufsize) = '/'; -+ memcpy(path + bufsize + is_not_root, name, namelen); -+ *(path + bufsize + namelen + is_not_root) = '\0'; -+ -+ tmp = obj->globbed; -+ while (tmp) { -+ if (!glob_match(tmp->filename, path)) { -+ preempt_enable(); -+ return (tmp->mode & GR_FIND) ? 1 : 0; -+ } -+ tmp = tmp->next; -+ } -+ preempt_enable(); -+ return (obj->mode & GR_FIND) ? 1 : 0; -+} -+ -+#ifdef CONFIG_NETFILTER_XT_MATCH_GRADM_MODULE -+EXPORT_SYMBOL(gr_acl_is_enabled); -+#endif -+EXPORT_SYMBOL(gr_learn_resource); -+EXPORT_SYMBOL(gr_set_kernel_label); -+#ifdef CONFIG_SECURITY -+EXPORT_SYMBOL(gr_check_user_change); -+EXPORT_SYMBOL(gr_check_group_change); -+#endif -+ -diff --git a/grsecurity/gracl_alloc.c b/grsecurity/gracl_alloc.c -new file mode 100644 -index 0000000..34fefda ---- /dev/null -+++ b/grsecurity/gracl_alloc.c -@@ -0,0 +1,105 @@ -+#include <linux/kernel.h> -+#include <linux/mm.h> -+#include <linux/slab.h> -+#include <linux/vmalloc.h> -+#include <linux/gracl.h> -+#include <linux/grsecurity.h> -+ -+static unsigned long alloc_stack_next = 1; -+static unsigned long alloc_stack_size = 1; -+static void **alloc_stack; -+ -+static __inline__ int -+alloc_pop(void) -+{ -+ if (alloc_stack_next == 1) -+ return 0; -+ -+ kfree(alloc_stack[alloc_stack_next - 2]); -+ -+ alloc_stack_next--; -+ -+ return 1; -+} -+ -+static __inline__ int -+alloc_push(void *buf) -+{ -+ if (alloc_stack_next >= alloc_stack_size) -+ return 1; -+ -+ alloc_stack[alloc_stack_next - 1] = buf; -+ -+ alloc_stack_next++; -+ -+ return 0; -+} -+ -+void * -+acl_alloc(unsigned long len) -+{ -+ void *ret = NULL; -+ -+ if (!len || len > PAGE_SIZE) -+ goto out; -+ -+ ret = kmalloc(len, GFP_KERNEL); -+ -+ if (ret) { -+ if (alloc_push(ret)) { -+ kfree(ret); -+ ret = NULL; -+ } -+ } -+ -+out: -+ return ret; -+} -+ -+void * -+acl_alloc_num(unsigned long num, unsigned long len) -+{ -+ if (!len || (num > (PAGE_SIZE / len))) -+ return NULL; -+ -+ return acl_alloc(num * len); -+} -+ -+void -+acl_free_all(void) -+{ -+ if (gr_acl_is_enabled() || !alloc_stack) -+ return; -+ -+ while (alloc_pop()) ; -+ -+ if (alloc_stack) { -+ if ((alloc_stack_size * sizeof (void *)) <= PAGE_SIZE) -+ kfree(alloc_stack); -+ else -+ vfree(alloc_stack); -+ } -+ -+ alloc_stack = NULL; -+ alloc_stack_size = 1; -+ alloc_stack_next = 1; -+ -+ return; -+} -+ -+int -+acl_alloc_stack_init(unsigned long size) -+{ -+ if ((size * sizeof (void *)) <= PAGE_SIZE) -+ alloc_stack = -+ (void **) kmalloc(size * sizeof (void *), GFP_KERNEL); -+ else -+ alloc_stack = (void **) vmalloc(size * sizeof (void *)); -+ -+ alloc_stack_size = size; -+ -+ if (!alloc_stack) -+ return 0; -+ else -+ return 1; -+} -diff --git a/grsecurity/gracl_cap.c b/grsecurity/gracl_cap.c -new file mode 100644 -index 0000000..6d21049 ---- /dev/null -+++ b/grsecurity/gracl_cap.c -@@ -0,0 +1,110 @@ -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/sched.h> -+#include <linux/gracl.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+extern const char *captab_log[]; -+extern int captab_log_entries; -+ -+int gr_task_acl_is_capable(const struct task_struct *task, const struct cred *cred, const int cap) -+{ -+ struct acl_subject_label *curracl; -+ kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set; -+ kernel_cap_t cap_audit = __cap_empty_set; -+ -+ if (!gr_acl_is_enabled()) -+ return 1; -+ -+ curracl = task->acl; -+ -+ cap_drop = curracl->cap_lower; -+ cap_mask = curracl->cap_mask; -+ cap_audit = curracl->cap_invert_audit; -+ -+ while ((curracl = curracl->parent_subject)) { -+ /* if the cap isn't specified in the current computed mask but is specified in the -+ current level subject, and is lowered in the current level subject, then add -+ it to the set of dropped capabilities -+ otherwise, add the current level subject's mask to the current computed mask -+ */ -+ if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) { -+ cap_raise(cap_mask, cap); -+ if (cap_raised(curracl->cap_lower, cap)) -+ cap_raise(cap_drop, cap); -+ if (cap_raised(curracl->cap_invert_audit, cap)) -+ cap_raise(cap_audit, cap); -+ } -+ } -+ -+ if (!cap_raised(cap_drop, cap)) { -+ if (cap_raised(cap_audit, cap)) -+ gr_log_cap(GR_DO_AUDIT, GR_CAP_ACL_MSG2, task, captab_log[cap]); -+ return 1; -+ } -+ -+ curracl = task->acl; -+ -+ if ((curracl->mode & (GR_LEARN | GR_INHERITLEARN)) -+ && cap_raised(cred->cap_effective, cap)) { -+ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, -+ task->role->roletype, cred->uid, -+ cred->gid, task->exec_file ? -+ gr_to_filename(task->exec_file->f_path.dentry, -+ task->exec_file->f_path.mnt) : curracl->filename, -+ curracl->filename, 0UL, -+ 0UL, "", (unsigned long) cap, &task->signal->saved_ip); -+ return 1; -+ } -+ -+ if ((cap >= 0) && (cap < captab_log_entries) && cap_raised(cred->cap_effective, cap) && !cap_raised(cap_audit, cap)) -+ gr_log_cap(GR_DONT_AUDIT, GR_CAP_ACL_MSG, task, captab_log[cap]); -+ -+ return 0; -+} -+ -+int -+gr_acl_is_capable(const int cap) -+{ -+ return gr_task_acl_is_capable(current, current_cred(), cap); -+} -+ -+int gr_task_acl_is_capable_nolog(const struct task_struct *task, const int cap) -+{ -+ struct acl_subject_label *curracl; -+ kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set; -+ -+ if (!gr_acl_is_enabled()) -+ return 1; -+ -+ curracl = task->acl; -+ -+ cap_drop = curracl->cap_lower; -+ cap_mask = curracl->cap_mask; -+ -+ while ((curracl = curracl->parent_subject)) { -+ /* if the cap isn't specified in the current computed mask but is specified in the -+ current level subject, and is lowered in the current level subject, then add -+ it to the set of dropped capabilities -+ otherwise, add the current level subject's mask to the current computed mask -+ */ -+ if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) { -+ cap_raise(cap_mask, cap); -+ if (cap_raised(curracl->cap_lower, cap)) -+ cap_raise(cap_drop, cap); -+ } -+ } -+ -+ if (!cap_raised(cap_drop, cap)) -+ return 1; -+ -+ return 0; -+} -+ -+int -+gr_acl_is_capable_nolog(const int cap) -+{ -+ return gr_task_acl_is_capable_nolog(current, cap); -+} -+ -diff --git a/grsecurity/gracl_fs.c b/grsecurity/gracl_fs.c -new file mode 100644 -index 0000000..88d0e87 ---- /dev/null -+++ b/grsecurity/gracl_fs.c -@@ -0,0 +1,435 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/types.h> -+#include <linux/fs.h> -+#include <linux/file.h> -+#include <linux/stat.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+#include <linux/gracl.h> -+ -+umode_t -+gr_acl_umask(void) -+{ -+ if (unlikely(!gr_acl_is_enabled())) -+ return 0; -+ -+ return current->role->umask; -+} -+ -+__u32 -+gr_acl_handle_hidden_file(const struct dentry * dentry, -+ const struct vfsmount * mnt) -+{ -+ __u32 mode; -+ -+ if (unlikely(!dentry->d_inode)) -+ return GR_FIND; -+ -+ mode = -+ gr_search_file(dentry, GR_FIND | GR_AUDIT_FIND | GR_SUPPRESS, mnt); -+ -+ if (unlikely(mode & GR_FIND && mode & GR_AUDIT_FIND)) { -+ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt); -+ return mode; -+ } else if (unlikely(!(mode & GR_FIND) && !(mode & GR_SUPPRESS))) { -+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt); -+ return 0; -+ } else if (unlikely(!(mode & GR_FIND))) -+ return 0; -+ -+ return GR_FIND; -+} -+ -+__u32 -+gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt, -+ int acc_mode) -+{ -+ __u32 reqmode = GR_FIND; -+ __u32 mode; -+ -+ if (unlikely(!dentry->d_inode)) -+ return reqmode; -+ -+ if (acc_mode & MAY_APPEND) -+ reqmode |= GR_APPEND; -+ else if (acc_mode & MAY_WRITE) -+ reqmode |= GR_WRITE; -+ if ((acc_mode & MAY_READ) && !S_ISDIR(dentry->d_inode->i_mode)) -+ reqmode |= GR_READ; -+ -+ mode = -+ gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS, -+ mnt); -+ -+ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) { -+ gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt, -+ reqmode & GR_READ ? " reading" : "", -+ reqmode & GR_WRITE ? " writing" : reqmode & -+ GR_APPEND ? " appending" : ""); -+ return reqmode; -+ } else -+ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS))) -+ { -+ gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt, -+ reqmode & GR_READ ? " reading" : "", -+ reqmode & GR_WRITE ? " writing" : reqmode & -+ GR_APPEND ? " appending" : ""); -+ return 0; -+ } else if (unlikely((mode & reqmode) != reqmode)) -+ return 0; -+ -+ return reqmode; -+} -+ -+__u32 -+gr_acl_handle_creat(const struct dentry * dentry, -+ const struct dentry * p_dentry, -+ const struct vfsmount * p_mnt, int open_flags, int acc_mode, -+ const int imode) -+{ -+ __u32 reqmode = GR_WRITE | GR_CREATE; -+ __u32 mode; -+ -+ if (acc_mode & MAY_APPEND) -+ reqmode |= GR_APPEND; -+ // if a directory was required or the directory already exists, then -+ // don't count this open as a read -+ if ((acc_mode & MAY_READ) && -+ !((open_flags & O_DIRECTORY) || (dentry->d_inode && S_ISDIR(dentry->d_inode->i_mode)))) -+ reqmode |= GR_READ; -+ if ((open_flags & O_CREAT) && (imode & (S_ISUID | S_ISGID))) -+ reqmode |= GR_SETID; -+ -+ mode = -+ gr_check_create(dentry, p_dentry, p_mnt, -+ reqmode | to_gr_audit(reqmode) | GR_SUPPRESS); -+ -+ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) { -+ gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt, -+ reqmode & GR_READ ? " reading" : "", -+ reqmode & GR_WRITE ? " writing" : reqmode & -+ GR_APPEND ? " appending" : ""); -+ return reqmode; -+ } else -+ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS))) -+ { -+ gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt, -+ reqmode & GR_READ ? " reading" : "", -+ reqmode & GR_WRITE ? " writing" : reqmode & -+ GR_APPEND ? " appending" : ""); -+ return 0; -+ } else if (unlikely((mode & reqmode) != reqmode)) -+ return 0; -+ -+ return reqmode; -+} -+ -+__u32 -+gr_acl_handle_access(const struct dentry * dentry, const struct vfsmount * mnt, -+ const int fmode) -+{ -+ __u32 mode, reqmode = GR_FIND; -+ -+ if ((fmode & S_IXOTH) && !S_ISDIR(dentry->d_inode->i_mode)) -+ reqmode |= GR_EXEC; -+ if (fmode & S_IWOTH) -+ reqmode |= GR_WRITE; -+ if (fmode & S_IROTH) -+ reqmode |= GR_READ; -+ -+ mode = -+ gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS, -+ mnt); -+ -+ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) { -+ gr_log_fs_rbac_mode3(GR_DO_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt, -+ reqmode & GR_READ ? " reading" : "", -+ reqmode & GR_WRITE ? " writing" : "", -+ reqmode & GR_EXEC ? " executing" : ""); -+ return reqmode; -+ } else -+ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS))) -+ { -+ gr_log_fs_rbac_mode3(GR_DONT_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt, -+ reqmode & GR_READ ? " reading" : "", -+ reqmode & GR_WRITE ? " writing" : "", -+ reqmode & GR_EXEC ? " executing" : ""); -+ return 0; -+ } else if (unlikely((mode & reqmode) != reqmode)) -+ return 0; -+ -+ return reqmode; -+} -+ -+static __u32 generic_fs_handler(const struct dentry *dentry, const struct vfsmount *mnt, __u32 reqmode, const char *fmt) -+{ -+ __u32 mode; -+ -+ mode = gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS, mnt); -+ -+ if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) { -+ gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, dentry, mnt); -+ return mode; -+ } else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) { -+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, dentry, mnt); -+ return 0; -+ } else if (unlikely((mode & (reqmode)) != (reqmode))) -+ return 0; -+ -+ return (reqmode); -+} -+ -+__u32 -+gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt) -+{ -+ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_RMDIR_ACL_MSG); -+} -+ -+__u32 -+gr_acl_handle_unlink(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_UNLINK_ACL_MSG); -+} -+ -+__u32 -+gr_acl_handle_truncate(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_TRUNCATE_ACL_MSG); -+} -+ -+__u32 -+gr_acl_handle_utime(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_ATIME_ACL_MSG); -+} -+ -+__u32 -+gr_acl_handle_chmod(const struct dentry *dentry, const struct vfsmount *mnt, -+ umode_t *modeptr) -+{ -+ umode_t mode; -+ -+ *modeptr &= ~gr_acl_umask(); -+ mode = *modeptr; -+ -+ if (unlikely(dentry->d_inode && S_ISSOCK(dentry->d_inode->i_mode))) -+ return 1; -+ -+ if (unlikely(mode & (S_ISUID | S_ISGID))) { -+ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_SETID, -+ GR_CHMOD_ACL_MSG); -+ } else { -+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHMOD_ACL_MSG); -+ } -+} -+ -+__u32 -+gr_acl_handle_chown(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHOWN_ACL_MSG); -+} -+ -+__u32 -+gr_acl_handle_setxattr(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_SETXATTR_ACL_MSG); -+} -+ -+__u32 -+gr_acl_handle_execve(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return generic_fs_handler(dentry, mnt, GR_EXEC, GR_EXEC_ACL_MSG); -+} -+ -+__u32 -+gr_acl_handle_unix(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return generic_fs_handler(dentry, mnt, GR_READ | GR_WRITE, -+ GR_UNIXCONNECT_ACL_MSG); -+} -+ -+/* hardlinks require at minimum create and link permission, -+ any additional privilege required is based on the -+ privilege of the file being linked to -+*/ -+__u32 -+gr_acl_handle_link(const struct dentry * new_dentry, -+ const struct dentry * parent_dentry, -+ const struct vfsmount * parent_mnt, -+ const struct dentry * old_dentry, -+ const struct vfsmount * old_mnt, const char *to) -+{ -+ __u32 mode; -+ __u32 needmode = GR_CREATE | GR_LINK; -+ __u32 needaudit = GR_AUDIT_CREATE | GR_AUDIT_LINK; -+ -+ mode = -+ gr_check_link(new_dentry, parent_dentry, parent_mnt, old_dentry, -+ old_mnt); -+ -+ if (unlikely(((mode & needmode) == needmode) && (mode & needaudit))) { -+ gr_log_fs_rbac_str(GR_DO_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to); -+ return mode; -+ } else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) { -+ gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to); -+ return 0; -+ } else if (unlikely((mode & needmode) != needmode)) -+ return 0; -+ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_symlink(const struct dentry * new_dentry, -+ const struct dentry * parent_dentry, -+ const struct vfsmount * parent_mnt, const char *from) -+{ -+ __u32 needmode = GR_WRITE | GR_CREATE; -+ __u32 mode; -+ -+ mode = -+ gr_check_create(new_dentry, parent_dentry, parent_mnt, -+ GR_CREATE | GR_AUDIT_CREATE | -+ GR_WRITE | GR_AUDIT_WRITE | GR_SUPPRESS); -+ -+ if (unlikely(mode & GR_WRITE && mode & GR_AUDITS)) { -+ gr_log_fs_str_rbac(GR_DO_AUDIT, GR_SYMLINK_ACL_MSG, from, new_dentry, parent_mnt); -+ return mode; -+ } else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) { -+ gr_log_fs_str_rbac(GR_DONT_AUDIT, GR_SYMLINK_ACL_MSG, from, new_dentry, parent_mnt); -+ return 0; -+ } else if (unlikely((mode & needmode) != needmode)) -+ return 0; -+ -+ return (GR_WRITE | GR_CREATE); -+} -+ -+static __u32 generic_fs_create_handler(const struct dentry *new_dentry, const struct dentry *parent_dentry, const struct vfsmount *parent_mnt, __u32 reqmode, const char *fmt) -+{ -+ __u32 mode; -+ -+ mode = gr_check_create(new_dentry, parent_dentry, parent_mnt, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS); -+ -+ if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) { -+ gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, new_dentry, parent_mnt); -+ return mode; -+ } else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) { -+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, new_dentry, parent_mnt); -+ return 0; -+ } else if (unlikely((mode & (reqmode)) != (reqmode))) -+ return 0; -+ -+ return (reqmode); -+} -+ -+__u32 -+gr_acl_handle_mknod(const struct dentry * new_dentry, -+ const struct dentry * parent_dentry, -+ const struct vfsmount * parent_mnt, -+ const int mode) -+{ -+ __u32 reqmode = GR_WRITE | GR_CREATE; -+ if (unlikely(mode & (S_ISUID | S_ISGID))) -+ reqmode |= GR_SETID; -+ -+ return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt, -+ reqmode, GR_MKNOD_ACL_MSG); -+} -+ -+__u32 -+gr_acl_handle_mkdir(const struct dentry *new_dentry, -+ const struct dentry *parent_dentry, -+ const struct vfsmount *parent_mnt) -+{ -+ return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt, -+ GR_WRITE | GR_CREATE, GR_MKDIR_ACL_MSG); -+} -+ -+#define RENAME_CHECK_SUCCESS(old, new) \ -+ (((old & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)) && \ -+ ((new & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ))) -+ -+int -+gr_acl_handle_rename(struct dentry *new_dentry, -+ struct dentry *parent_dentry, -+ const struct vfsmount *parent_mnt, -+ struct dentry *old_dentry, -+ struct inode *old_parent_inode, -+ struct vfsmount *old_mnt, const char *newname) -+{ -+ __u32 comp1, comp2; -+ int error = 0; -+ -+ if (unlikely(!gr_acl_is_enabled())) -+ return 0; -+ -+ if (!new_dentry->d_inode) { -+ comp1 = gr_check_create(new_dentry, parent_dentry, parent_mnt, -+ GR_READ | GR_WRITE | GR_CREATE | GR_AUDIT_READ | -+ GR_AUDIT_WRITE | GR_AUDIT_CREATE | GR_SUPPRESS); -+ comp2 = gr_search_file(old_dentry, GR_READ | GR_WRITE | -+ GR_DELETE | GR_AUDIT_DELETE | -+ GR_AUDIT_READ | GR_AUDIT_WRITE | -+ GR_SUPPRESS, old_mnt); -+ } else { -+ comp1 = gr_search_file(new_dentry, GR_READ | GR_WRITE | -+ GR_CREATE | GR_DELETE | -+ GR_AUDIT_CREATE | GR_AUDIT_DELETE | -+ GR_AUDIT_READ | GR_AUDIT_WRITE | -+ GR_SUPPRESS, parent_mnt); -+ comp2 = -+ gr_search_file(old_dentry, -+ GR_READ | GR_WRITE | GR_AUDIT_READ | -+ GR_DELETE | GR_AUDIT_DELETE | -+ GR_AUDIT_WRITE | GR_SUPPRESS, old_mnt); -+ } -+ -+ if (RENAME_CHECK_SUCCESS(comp1, comp2) && -+ ((comp1 & GR_AUDITS) || (comp2 & GR_AUDITS))) -+ gr_log_fs_rbac_str(GR_DO_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname); -+ else if (!RENAME_CHECK_SUCCESS(comp1, comp2) && !(comp1 & GR_SUPPRESS) -+ && !(comp2 & GR_SUPPRESS)) { -+ gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname); -+ error = -EACCES; -+ } else if (unlikely(!RENAME_CHECK_SUCCESS(comp1, comp2))) -+ error = -EACCES; -+ -+ return error; -+} -+ -+void -+gr_acl_handle_exit(void) -+{ -+ u16 id; -+ char *rolename; -+ struct file *exec_file; -+ -+ if (unlikely(current->acl_sp_role && gr_acl_is_enabled() && -+ !(current->role->roletype & GR_ROLE_PERSIST))) { -+ id = current->acl_role_id; -+ rolename = current->role->rolename; -+ gr_set_acls(1); -+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLEL_ACL_MSG, rolename, id); -+ } -+ -+ write_lock(&grsec_exec_file_lock); -+ exec_file = current->exec_file; -+ current->exec_file = NULL; -+ write_unlock(&grsec_exec_file_lock); -+ -+ if (exec_file) -+ fput(exec_file); -+} -+ -+int -+gr_acl_handle_procpidmem(const struct task_struct *task) -+{ -+ if (unlikely(!gr_acl_is_enabled())) -+ return 0; -+ -+ if (task != current && task->acl->mode & GR_PROTPROCFD) -+ return -EACCES; -+ -+ return 0; -+} -diff --git a/grsecurity/gracl_ip.c b/grsecurity/gracl_ip.c -new file mode 100644 -index 0000000..58800a7 ---- /dev/null -+++ b/grsecurity/gracl_ip.c -@@ -0,0 +1,384 @@ -+#include <linux/kernel.h> -+#include <asm/uaccess.h> -+#include <asm/errno.h> -+#include <net/sock.h> -+#include <linux/file.h> -+#include <linux/fs.h> -+#include <linux/net.h> -+#include <linux/in.h> -+#include <linux/skbuff.h> -+#include <linux/ip.h> -+#include <linux/udp.h> -+#include <linux/types.h> -+#include <linux/sched.h> -+#include <linux/netdevice.h> -+#include <linux/inetdevice.h> -+#include <linux/gracl.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+#define GR_BIND 0x01 -+#define GR_CONNECT 0x02 -+#define GR_INVERT 0x04 -+#define GR_BINDOVERRIDE 0x08 -+#define GR_CONNECTOVERRIDE 0x10 -+#define GR_SOCK_FAMILY 0x20 -+ -+static const char * gr_protocols[IPPROTO_MAX] = { -+ "ip", "icmp", "igmp", "ggp", "ipencap", "st", "tcp", "cbt", -+ "egp", "igp", "bbn-rcc", "nvp", "pup", "argus", "emcon", "xnet", -+ "chaos", "udp", "mux", "dcn", "hmp", "prm", "xns-idp", "trunk-1", -+ "trunk-2", "leaf-1", "leaf-2", "rdp", "irtp", "iso-tp4", "netblt", "mfe-nsp", -+ "merit-inp", "sep", "3pc", "idpr", "xtp", "ddp", "idpr-cmtp", "tp++", -+ "il", "ipv6", "sdrp", "ipv6-route", "ipv6-frag", "idrp", "rsvp", "gre", -+ "mhrp", "bna", "ipv6-crypt", "ipv6-auth", "i-nlsp", "swipe", "narp", "mobile", -+ "tlsp", "skip", "ipv6-icmp", "ipv6-nonxt", "ipv6-opts", "unknown:61", "cftp", "unknown:63", -+ "sat-expak", "kryptolan", "rvd", "ippc", "unknown:68", "sat-mon", "visa", "ipcv", -+ "cpnx", "cphb", "wsn", "pvp", "br-sat-mon", "sun-nd", "wb-mon", "wb-expak", -+ "iso-ip", "vmtp", "secure-vmtp", "vines", "ttp", "nfsnet-igp", "dgp", "tcf", -+ "eigrp", "ospf", "sprite-rpc", "larp", "mtp", "ax.25", "ipip", "micp", -+ "scc-sp", "etherip", "encap", "unknown:99", "gmtp", "ifmp", "pnni", "pim", -+ "aris", "scps", "qnx", "a/n", "ipcomp", "snp", "compaq-peer", "ipx-in-ip", -+ "vrrp", "pgm", "unknown:114", "l2tp", "ddx", "iatp", "stp", "srp", -+ "uti", "smp", "sm", "ptp", "isis", "fire", "crtp", "crdup", -+ "sscopmce", "iplt", "sps", "pipe", "sctp", "fc", "unkown:134", "unknown:135", -+ "unknown:136", "unknown:137", "unknown:138", "unknown:139", "unknown:140", "unknown:141", "unknown:142", "unknown:143", -+ "unknown:144", "unknown:145", "unknown:146", "unknown:147", "unknown:148", "unknown:149", "unknown:150", "unknown:151", -+ "unknown:152", "unknown:153", "unknown:154", "unknown:155", "unknown:156", "unknown:157", "unknown:158", "unknown:159", -+ "unknown:160", "unknown:161", "unknown:162", "unknown:163", "unknown:164", "unknown:165", "unknown:166", "unknown:167", -+ "unknown:168", "unknown:169", "unknown:170", "unknown:171", "unknown:172", "unknown:173", "unknown:174", "unknown:175", -+ "unknown:176", "unknown:177", "unknown:178", "unknown:179", "unknown:180", "unknown:181", "unknown:182", "unknown:183", -+ "unknown:184", "unknown:185", "unknown:186", "unknown:187", "unknown:188", "unknown:189", "unknown:190", "unknown:191", -+ "unknown:192", "unknown:193", "unknown:194", "unknown:195", "unknown:196", "unknown:197", "unknown:198", "unknown:199", -+ "unknown:200", "unknown:201", "unknown:202", "unknown:203", "unknown:204", "unknown:205", "unknown:206", "unknown:207", -+ "unknown:208", "unknown:209", "unknown:210", "unknown:211", "unknown:212", "unknown:213", "unknown:214", "unknown:215", -+ "unknown:216", "unknown:217", "unknown:218", "unknown:219", "unknown:220", "unknown:221", "unknown:222", "unknown:223", -+ "unknown:224", "unknown:225", "unknown:226", "unknown:227", "unknown:228", "unknown:229", "unknown:230", "unknown:231", -+ "unknown:232", "unknown:233", "unknown:234", "unknown:235", "unknown:236", "unknown:237", "unknown:238", "unknown:239", -+ "unknown:240", "unknown:241", "unknown:242", "unknown:243", "unknown:244", "unknown:245", "unknown:246", "unknown:247", -+ "unknown:248", "unknown:249", "unknown:250", "unknown:251", "unknown:252", "unknown:253", "unknown:254", "unknown:255", -+ }; -+ -+static const char * gr_socktypes[SOCK_MAX] = { -+ "unknown:0", "stream", "dgram", "raw", "rdm", "seqpacket", "unknown:6", -+ "unknown:7", "unknown:8", "unknown:9", "packet" -+ }; -+ -+static const char * gr_sockfamilies[AF_MAX+1] = { -+ "unspec", "unix", "inet", "ax25", "ipx", "appletalk", "netrom", "bridge", "atmpvc", "x25", -+ "inet6", "rose", "decnet", "netbeui", "security", "key", "netlink", "packet", "ash", -+ "econet", "atmsvc", "rds", "sna", "irda", "ppox", "wanpipe", "llc", "fam_27", "fam_28", -+ "tipc", "bluetooth", "iucv", "rxrpc", "isdn", "phonet", "ieee802154", "ciaf" -+ }; -+ -+const char * -+gr_proto_to_name(unsigned char proto) -+{ -+ return gr_protocols[proto]; -+} -+ -+const char * -+gr_socktype_to_name(unsigned char type) -+{ -+ return gr_socktypes[type]; -+} -+ -+const char * -+gr_sockfamily_to_name(unsigned char family) -+{ -+ return gr_sockfamilies[family]; -+} -+ -+int -+gr_search_socket(const int domain, const int type, const int protocol) -+{ -+ struct acl_subject_label *curr; -+ const struct cred *cred = current_cred(); -+ -+ if (unlikely(!gr_acl_is_enabled())) -+ goto exit; -+ -+ if ((domain < 0) || (type < 0) || (protocol < 0) || -+ (domain >= AF_MAX) || (type >= SOCK_MAX) || (protocol >= IPPROTO_MAX)) -+ goto exit; // let the kernel handle it -+ -+ curr = current->acl; -+ -+ if (curr->sock_families[domain / 32] & (1 << (domain % 32))) { -+ /* the family is allowed, if this is PF_INET allow it only if -+ the extra sock type/protocol checks pass */ -+ if (domain == PF_INET) -+ goto inet_check; -+ goto exit; -+ } else { -+ if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) { -+ __u32 fakeip = 0; -+ security_learn(GR_IP_LEARN_MSG, current->role->rolename, -+ current->role->roletype, cred->uid, -+ cred->gid, current->exec_file ? -+ gr_to_filename(current->exec_file->f_path.dentry, -+ current->exec_file->f_path.mnt) : -+ curr->filename, curr->filename, -+ &fakeip, domain, 0, 0, GR_SOCK_FAMILY, -+ &current->signal->saved_ip); -+ goto exit; -+ } -+ goto exit_fail; -+ } -+ -+inet_check: -+ /* the rest of this checking is for IPv4 only */ -+ if (!curr->ips) -+ goto exit; -+ -+ if ((curr->ip_type & (1 << type)) && -+ (curr->ip_proto[protocol / 32] & (1 << (protocol % 32)))) -+ goto exit; -+ -+ if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) { -+ /* we don't place acls on raw sockets , and sometimes -+ dgram/ip sockets are opened for ioctl and not -+ bind/connect, so we'll fake a bind learn log */ -+ if (type == SOCK_RAW || type == SOCK_PACKET) { -+ __u32 fakeip = 0; -+ security_learn(GR_IP_LEARN_MSG, current->role->rolename, -+ current->role->roletype, cred->uid, -+ cred->gid, current->exec_file ? -+ gr_to_filename(current->exec_file->f_path.dentry, -+ current->exec_file->f_path.mnt) : -+ curr->filename, curr->filename, -+ &fakeip, 0, type, -+ protocol, GR_CONNECT, &current->signal->saved_ip); -+ } else if ((type == SOCK_DGRAM) && (protocol == IPPROTO_IP)) { -+ __u32 fakeip = 0; -+ security_learn(GR_IP_LEARN_MSG, current->role->rolename, -+ current->role->roletype, cred->uid, -+ cred->gid, current->exec_file ? -+ gr_to_filename(current->exec_file->f_path.dentry, -+ current->exec_file->f_path.mnt) : -+ curr->filename, curr->filename, -+ &fakeip, 0, type, -+ protocol, GR_BIND, &current->signal->saved_ip); -+ } -+ /* we'll log when they use connect or bind */ -+ goto exit; -+ } -+ -+exit_fail: -+ if (domain == PF_INET) -+ gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, gr_sockfamily_to_name(domain), -+ gr_socktype_to_name(type), gr_proto_to_name(protocol)); -+ else -+ gr_log_str2_int(GR_DONT_AUDIT, GR_SOCK_NOINET_MSG, gr_sockfamily_to_name(domain), -+ gr_socktype_to_name(type), protocol); -+ -+ return 0; -+exit: -+ return 1; -+} -+ -+int check_ip_policy(struct acl_ip_label *ip, __u32 ip_addr, __u16 ip_port, __u8 protocol, const int mode, const int type, __u32 our_addr, __u32 our_netmask) -+{ -+ if ((ip->mode & mode) && -+ (ip_port >= ip->low) && -+ (ip_port <= ip->high) && -+ ((ntohl(ip_addr) & our_netmask) == -+ (ntohl(our_addr) & our_netmask)) -+ && (ip->proto[protocol / 32] & (1 << (protocol % 32))) -+ && (ip->type & (1 << type))) { -+ if (ip->mode & GR_INVERT) -+ return 2; // specifically denied -+ else -+ return 1; // allowed -+ } -+ -+ return 0; // not specifically allowed, may continue parsing -+} -+ -+static int -+gr_search_connectbind(const int full_mode, struct sock *sk, -+ struct sockaddr_in *addr, const int type) -+{ -+ char iface[IFNAMSIZ] = {0}; -+ struct acl_subject_label *curr; -+ struct acl_ip_label *ip; -+ struct inet_sock *isk; -+ struct net_device *dev; -+ struct in_device *idev; -+ unsigned long i; -+ int ret; -+ int mode = full_mode & (GR_BIND | GR_CONNECT); -+ __u32 ip_addr = 0; -+ __u32 our_addr; -+ __u32 our_netmask; -+ char *p; -+ __u16 ip_port = 0; -+ const struct cred *cred = current_cred(); -+ -+ if (unlikely(!gr_acl_is_enabled() || sk->sk_family != PF_INET)) -+ return 0; -+ -+ curr = current->acl; -+ isk = inet_sk(sk); -+ -+ /* INADDR_ANY overriding for binds, inaddr_any_override is already in network order */ -+ if ((full_mode & GR_BINDOVERRIDE) && addr->sin_addr.s_addr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0) -+ addr->sin_addr.s_addr = curr->inaddr_any_override; -+ if ((full_mode & GR_CONNECT) && isk->inet_saddr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0) { -+ struct sockaddr_in saddr; -+ int err; -+ -+ saddr.sin_family = AF_INET; -+ saddr.sin_addr.s_addr = curr->inaddr_any_override; -+ saddr.sin_port = isk->inet_sport; -+ -+ err = security_socket_bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in)); -+ if (err) -+ return err; -+ -+ err = sk->sk_socket->ops->bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in)); -+ if (err) -+ return err; -+ } -+ -+ if (!curr->ips) -+ return 0; -+ -+ ip_addr = addr->sin_addr.s_addr; -+ ip_port = ntohs(addr->sin_port); -+ -+ if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) { -+ security_learn(GR_IP_LEARN_MSG, current->role->rolename, -+ current->role->roletype, cred->uid, -+ cred->gid, current->exec_file ? -+ gr_to_filename(current->exec_file->f_path.dentry, -+ current->exec_file->f_path.mnt) : -+ curr->filename, curr->filename, -+ &ip_addr, ip_port, type, -+ sk->sk_protocol, mode, &current->signal->saved_ip); -+ return 0; -+ } -+ -+ for (i = 0; i < curr->ip_num; i++) { -+ ip = *(curr->ips + i); -+ if (ip->iface != NULL) { -+ strncpy(iface, ip->iface, IFNAMSIZ - 1); -+ p = strchr(iface, ':'); -+ if (p != NULL) -+ *p = '\0'; -+ dev = dev_get_by_name(sock_net(sk), iface); -+ if (dev == NULL) -+ continue; -+ idev = in_dev_get(dev); -+ if (idev == NULL) { -+ dev_put(dev); -+ continue; -+ } -+ rcu_read_lock(); -+ for_ifa(idev) { -+ if (!strcmp(ip->iface, ifa->ifa_label)) { -+ our_addr = ifa->ifa_address; -+ our_netmask = 0xffffffff; -+ ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask); -+ if (ret == 1) { -+ rcu_read_unlock(); -+ in_dev_put(idev); -+ dev_put(dev); -+ return 0; -+ } else if (ret == 2) { -+ rcu_read_unlock(); -+ in_dev_put(idev); -+ dev_put(dev); -+ goto denied; -+ } -+ } -+ } endfor_ifa(idev); -+ rcu_read_unlock(); -+ in_dev_put(idev); -+ dev_put(dev); -+ } else { -+ our_addr = ip->addr; -+ our_netmask = ip->netmask; -+ ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask); -+ if (ret == 1) -+ return 0; -+ else if (ret == 2) -+ goto denied; -+ } -+ } -+ -+denied: -+ if (mode == GR_BIND) -+ gr_log_int5_str2(GR_DONT_AUDIT, GR_BIND_ACL_MSG, &ip_addr, ip_port, gr_socktype_to_name(type), gr_proto_to_name(sk->sk_protocol)); -+ else if (mode == GR_CONNECT) -+ gr_log_int5_str2(GR_DONT_AUDIT, GR_CONNECT_ACL_MSG, &ip_addr, ip_port, gr_socktype_to_name(type), gr_proto_to_name(sk->sk_protocol)); -+ -+ return -EACCES; -+} -+ -+int -+gr_search_connect(struct socket *sock, struct sockaddr_in *addr) -+{ -+ /* always allow disconnection of dgram sockets with connect */ -+ if (addr->sin_family == AF_UNSPEC) -+ return 0; -+ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sock->sk, addr, sock->type); -+} -+ -+int -+gr_search_bind(struct socket *sock, struct sockaddr_in *addr) -+{ -+ return gr_search_connectbind(GR_BIND | GR_BINDOVERRIDE, sock->sk, addr, sock->type); -+} -+ -+int gr_search_listen(struct socket *sock) -+{ -+ struct sock *sk = sock->sk; -+ struct sockaddr_in addr; -+ -+ addr.sin_addr.s_addr = inet_sk(sk)->inet_saddr; -+ addr.sin_port = inet_sk(sk)->inet_sport; -+ -+ return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type); -+} -+ -+int gr_search_accept(struct socket *sock) -+{ -+ struct sock *sk = sock->sk; -+ struct sockaddr_in addr; -+ -+ addr.sin_addr.s_addr = inet_sk(sk)->inet_saddr; -+ addr.sin_port = inet_sk(sk)->inet_sport; -+ -+ return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type); -+} -+ -+int -+gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr) -+{ -+ if (addr) -+ return gr_search_connectbind(GR_CONNECT, sk, addr, SOCK_DGRAM); -+ else { -+ struct sockaddr_in sin; -+ const struct inet_sock *inet = inet_sk(sk); -+ -+ sin.sin_addr.s_addr = inet->inet_daddr; -+ sin.sin_port = inet->inet_dport; -+ -+ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM); -+ } -+} -+ -+int -+gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb) -+{ -+ struct sockaddr_in sin; -+ -+ if (unlikely(skb->len < sizeof (struct udphdr))) -+ return 0; // skip this packet -+ -+ sin.sin_addr.s_addr = ip_hdr(skb)->saddr; -+ sin.sin_port = udp_hdr(skb)->source; -+ -+ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM); -+} -diff --git a/grsecurity/gracl_learn.c b/grsecurity/gracl_learn.c -new file mode 100644 -index 0000000..25f54ef ---- /dev/null -+++ b/grsecurity/gracl_learn.c -@@ -0,0 +1,207 @@ -+#include <linux/kernel.h> -+#include <linux/mm.h> -+#include <linux/sched.h> -+#include <linux/poll.h> -+#include <linux/string.h> -+#include <linux/file.h> -+#include <linux/types.h> -+#include <linux/vmalloc.h> -+#include <linux/grinternal.h> -+ -+extern ssize_t write_grsec_handler(struct file * file, const char __user * buf, -+ size_t count, loff_t *ppos); -+extern int gr_acl_is_enabled(void); -+ -+static DECLARE_WAIT_QUEUE_HEAD(learn_wait); -+static int gr_learn_attached; -+ -+/* use a 512k buffer */ -+#define LEARN_BUFFER_SIZE (512 * 1024) -+ -+static DEFINE_SPINLOCK(gr_learn_lock); -+static DEFINE_MUTEX(gr_learn_user_mutex); -+ -+/* we need to maintain two buffers, so that the kernel context of grlearn -+ uses a semaphore around the userspace copying, and the other kernel contexts -+ use a spinlock when copying into the buffer, since they cannot sleep -+*/ -+static char *learn_buffer; -+static char *learn_buffer_user; -+static int learn_buffer_len; -+static int learn_buffer_user_len; -+ -+static ssize_t -+read_learn(struct file *file, char __user * buf, size_t count, loff_t * ppos) -+{ -+ DECLARE_WAITQUEUE(wait, current); -+ ssize_t retval = 0; -+ -+ add_wait_queue(&learn_wait, &wait); -+ set_current_state(TASK_INTERRUPTIBLE); -+ do { -+ mutex_lock(&gr_learn_user_mutex); -+ spin_lock(&gr_learn_lock); -+ if (learn_buffer_len) -+ break; -+ spin_unlock(&gr_learn_lock); -+ mutex_unlock(&gr_learn_user_mutex); -+ if (file->f_flags & O_NONBLOCK) { -+ retval = -EAGAIN; -+ goto out; -+ } -+ if (signal_pending(current)) { -+ retval = -ERESTARTSYS; -+ goto out; -+ } -+ -+ schedule(); -+ } while (1); -+ -+ memcpy(learn_buffer_user, learn_buffer, learn_buffer_len); -+ learn_buffer_user_len = learn_buffer_len; -+ retval = learn_buffer_len; -+ learn_buffer_len = 0; -+ -+ spin_unlock(&gr_learn_lock); -+ -+ if (copy_to_user(buf, learn_buffer_user, learn_buffer_user_len)) -+ retval = -EFAULT; -+ -+ mutex_unlock(&gr_learn_user_mutex); -+out: -+ set_current_state(TASK_RUNNING); -+ remove_wait_queue(&learn_wait, &wait); -+ return retval; -+} -+ -+static unsigned int -+poll_learn(struct file * file, poll_table * wait) -+{ -+ poll_wait(file, &learn_wait, wait); -+ -+ if (learn_buffer_len) -+ return (POLLIN | POLLRDNORM); -+ -+ return 0; -+} -+ -+void -+gr_clear_learn_entries(void) -+{ -+ char *tmp; -+ -+ mutex_lock(&gr_learn_user_mutex); -+ spin_lock(&gr_learn_lock); -+ tmp = learn_buffer; -+ learn_buffer = NULL; -+ spin_unlock(&gr_learn_lock); -+ if (tmp) -+ vfree(tmp); -+ if (learn_buffer_user != NULL) { -+ vfree(learn_buffer_user); -+ learn_buffer_user = NULL; -+ } -+ learn_buffer_len = 0; -+ mutex_unlock(&gr_learn_user_mutex); -+ -+ return; -+} -+ -+void -+gr_add_learn_entry(const char *fmt, ...) -+{ -+ va_list args; -+ unsigned int len; -+ -+ if (!gr_learn_attached) -+ return; -+ -+ spin_lock(&gr_learn_lock); -+ -+ /* leave a gap at the end so we know when it's "full" but don't have to -+ compute the exact length of the string we're trying to append -+ */ -+ if (learn_buffer_len > LEARN_BUFFER_SIZE - 16384) { -+ spin_unlock(&gr_learn_lock); -+ wake_up_interruptible(&learn_wait); -+ return; -+ } -+ if (learn_buffer == NULL) { -+ spin_unlock(&gr_learn_lock); -+ return; -+ } -+ -+ va_start(args, fmt); -+ len = vsnprintf(learn_buffer + learn_buffer_len, LEARN_BUFFER_SIZE - learn_buffer_len, fmt, args); -+ va_end(args); -+ -+ learn_buffer_len += len + 1; -+ -+ spin_unlock(&gr_learn_lock); -+ wake_up_interruptible(&learn_wait); -+ -+ return; -+} -+ -+static int -+open_learn(struct inode *inode, struct file *file) -+{ -+ if (file->f_mode & FMODE_READ && gr_learn_attached) -+ return -EBUSY; -+ if (file->f_mode & FMODE_READ) { -+ int retval = 0; -+ mutex_lock(&gr_learn_user_mutex); -+ if (learn_buffer == NULL) -+ learn_buffer = vmalloc(LEARN_BUFFER_SIZE); -+ if (learn_buffer_user == NULL) -+ learn_buffer_user = vmalloc(LEARN_BUFFER_SIZE); -+ if (learn_buffer == NULL) { -+ retval = -ENOMEM; -+ goto out_error; -+ } -+ if (learn_buffer_user == NULL) { -+ retval = -ENOMEM; -+ goto out_error; -+ } -+ learn_buffer_len = 0; -+ learn_buffer_user_len = 0; -+ gr_learn_attached = 1; -+out_error: -+ mutex_unlock(&gr_learn_user_mutex); -+ return retval; -+ } -+ return 0; -+} -+ -+static int -+close_learn(struct inode *inode, struct file *file) -+{ -+ if (file->f_mode & FMODE_READ) { -+ char *tmp = NULL; -+ mutex_lock(&gr_learn_user_mutex); -+ spin_lock(&gr_learn_lock); -+ tmp = learn_buffer; -+ learn_buffer = NULL; -+ spin_unlock(&gr_learn_lock); -+ if (tmp) -+ vfree(tmp); -+ if (learn_buffer_user != NULL) { -+ vfree(learn_buffer_user); -+ learn_buffer_user = NULL; -+ } -+ learn_buffer_len = 0; -+ learn_buffer_user_len = 0; -+ gr_learn_attached = 0; -+ mutex_unlock(&gr_learn_user_mutex); -+ } -+ -+ return 0; -+} -+ -+const struct file_operations grsec_fops = { -+ .read = read_learn, -+ .write = write_grsec_handler, -+ .open = open_learn, -+ .release = close_learn, -+ .poll = poll_learn, -+}; -diff --git a/grsecurity/gracl_res.c b/grsecurity/gracl_res.c -new file mode 100644 -index 0000000..39645c9 ---- /dev/null -+++ b/grsecurity/gracl_res.c -@@ -0,0 +1,68 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/gracl.h> -+#include <linux/grinternal.h> -+ -+static const char *restab_log[] = { -+ [RLIMIT_CPU] = "RLIMIT_CPU", -+ [RLIMIT_FSIZE] = "RLIMIT_FSIZE", -+ [RLIMIT_DATA] = "RLIMIT_DATA", -+ [RLIMIT_STACK] = "RLIMIT_STACK", -+ [RLIMIT_CORE] = "RLIMIT_CORE", -+ [RLIMIT_RSS] = "RLIMIT_RSS", -+ [RLIMIT_NPROC] = "RLIMIT_NPROC", -+ [RLIMIT_NOFILE] = "RLIMIT_NOFILE", -+ [RLIMIT_MEMLOCK] = "RLIMIT_MEMLOCK", -+ [RLIMIT_AS] = "RLIMIT_AS", -+ [RLIMIT_LOCKS] = "RLIMIT_LOCKS", -+ [RLIMIT_SIGPENDING] = "RLIMIT_SIGPENDING", -+ [RLIMIT_MSGQUEUE] = "RLIMIT_MSGQUEUE", -+ [RLIMIT_NICE] = "RLIMIT_NICE", -+ [RLIMIT_RTPRIO] = "RLIMIT_RTPRIO", -+ [RLIMIT_RTTIME] = "RLIMIT_RTTIME", -+ [GR_CRASH_RES] = "RLIMIT_CRASH" -+}; -+ -+void -+gr_log_resource(const struct task_struct *task, -+ const int res, const unsigned long wanted, const int gt) -+{ -+ const struct cred *cred; -+ unsigned long rlim; -+ -+ if (!gr_acl_is_enabled() && !grsec_resource_logging) -+ return; -+ -+ // not yet supported resource -+ if (unlikely(!restab_log[res])) -+ return; -+ -+ if (res == RLIMIT_CPU || res == RLIMIT_RTTIME) -+ rlim = task_rlimit_max(task, res); -+ else -+ rlim = task_rlimit(task, res); -+ -+ if (likely((rlim == RLIM_INFINITY) || (gt && wanted <= rlim) || (!gt && wanted < rlim))) -+ return; -+ -+ rcu_read_lock(); -+ cred = __task_cred(task); -+ -+ if (res == RLIMIT_NPROC && -+ (cap_raised(cred->cap_effective, CAP_SYS_ADMIN) || -+ cap_raised(cred->cap_effective, CAP_SYS_RESOURCE))) -+ goto out_rcu_unlock; -+ else if (res == RLIMIT_MEMLOCK && -+ cap_raised(cred->cap_effective, CAP_IPC_LOCK)) -+ goto out_rcu_unlock; -+ else if (res == RLIMIT_NICE && cap_raised(cred->cap_effective, CAP_SYS_NICE)) -+ goto out_rcu_unlock; -+ rcu_read_unlock(); -+ -+ gr_log_res_ulong2_str(GR_DONT_AUDIT, GR_RESOURCE_MSG, task, wanted, restab_log[res], rlim); -+ -+ return; -+out_rcu_unlock: -+ rcu_read_unlock(); -+ return; -+} -diff --git a/grsecurity/gracl_segv.c b/grsecurity/gracl_segv.c -new file mode 100644 -index 0000000..5556be3 ---- /dev/null -+++ b/grsecurity/gracl_segv.c -@@ -0,0 +1,299 @@ -+#include <linux/kernel.h> -+#include <linux/mm.h> -+#include <asm/uaccess.h> -+#include <asm/errno.h> -+#include <asm/mman.h> -+#include <net/sock.h> -+#include <linux/file.h> -+#include <linux/fs.h> -+#include <linux/net.h> -+#include <linux/in.h> -+#include <linux/slab.h> -+#include <linux/types.h> -+#include <linux/sched.h> -+#include <linux/timer.h> -+#include <linux/gracl.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+static struct crash_uid *uid_set; -+static unsigned short uid_used; -+static DEFINE_SPINLOCK(gr_uid_lock); -+extern rwlock_t gr_inode_lock; -+extern struct acl_subject_label * -+ lookup_acl_subj_label(const ino_t inode, const dev_t dev, -+ struct acl_role_label *role); -+ -+#ifdef CONFIG_BTRFS_FS -+extern dev_t get_btrfs_dev_from_inode(struct inode *inode); -+extern int btrfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat); -+#endif -+ -+static inline dev_t __get_dev(const struct dentry *dentry) -+{ -+#ifdef CONFIG_BTRFS_FS -+ if (dentry->d_inode->i_op && dentry->d_inode->i_op->getattr == &btrfs_getattr) -+ return get_btrfs_dev_from_inode(dentry->d_inode); -+ else -+#endif -+ return dentry->d_inode->i_sb->s_dev; -+} -+ -+int -+gr_init_uidset(void) -+{ -+ uid_set = -+ kmalloc(GR_UIDTABLE_MAX * sizeof (struct crash_uid), GFP_KERNEL); -+ uid_used = 0; -+ -+ return uid_set ? 1 : 0; -+} -+ -+void -+gr_free_uidset(void) -+{ -+ if (uid_set) -+ kfree(uid_set); -+ -+ return; -+} -+ -+int -+gr_find_uid(const uid_t uid) -+{ -+ struct crash_uid *tmp = uid_set; -+ uid_t buid; -+ int low = 0, high = uid_used - 1, mid; -+ -+ while (high >= low) { -+ mid = (low + high) >> 1; -+ buid = tmp[mid].uid; -+ if (buid == uid) -+ return mid; -+ if (buid > uid) -+ high = mid - 1; -+ if (buid < uid) -+ low = mid + 1; -+ } -+ -+ return -1; -+} -+ -+static __inline__ void -+gr_insertsort(void) -+{ -+ unsigned short i, j; -+ struct crash_uid index; -+ -+ for (i = 1; i < uid_used; i++) { -+ index = uid_set[i]; -+ j = i; -+ while ((j > 0) && uid_set[j - 1].uid > index.uid) { -+ uid_set[j] = uid_set[j - 1]; -+ j--; -+ } -+ uid_set[j] = index; -+ } -+ -+ return; -+} -+ -+static __inline__ void -+gr_insert_uid(const uid_t uid, const unsigned long expires) -+{ -+ int loc; -+ -+ if (uid_used == GR_UIDTABLE_MAX) -+ return; -+ -+ loc = gr_find_uid(uid); -+ -+ if (loc >= 0) { -+ uid_set[loc].expires = expires; -+ return; -+ } -+ -+ uid_set[uid_used].uid = uid; -+ uid_set[uid_used].expires = expires; -+ uid_used++; -+ -+ gr_insertsort(); -+ -+ return; -+} -+ -+void -+gr_remove_uid(const unsigned short loc) -+{ -+ unsigned short i; -+ -+ for (i = loc + 1; i < uid_used; i++) -+ uid_set[i - 1] = uid_set[i]; -+ -+ uid_used--; -+ -+ return; -+} -+ -+int -+gr_check_crash_uid(const uid_t uid) -+{ -+ int loc; -+ int ret = 0; -+ -+ if (unlikely(!gr_acl_is_enabled())) -+ return 0; -+ -+ spin_lock(&gr_uid_lock); -+ loc = gr_find_uid(uid); -+ -+ if (loc < 0) -+ goto out_unlock; -+ -+ if (time_before_eq(uid_set[loc].expires, get_seconds())) -+ gr_remove_uid(loc); -+ else -+ ret = 1; -+ -+out_unlock: -+ spin_unlock(&gr_uid_lock); -+ return ret; -+} -+ -+static __inline__ int -+proc_is_setxid(const struct cred *cred) -+{ -+ if (cred->uid != cred->euid || cred->uid != cred->suid || -+ cred->uid != cred->fsuid) -+ return 1; -+ if (cred->gid != cred->egid || cred->gid != cred->sgid || -+ cred->gid != cred->fsgid) -+ return 1; -+ -+ return 0; -+} -+ -+extern int gr_fake_force_sig(int sig, struct task_struct *t); -+ -+void -+gr_handle_crash(struct task_struct *task, const int sig) -+{ -+ struct acl_subject_label *curr; -+ struct task_struct *tsk, *tsk2; -+ const struct cred *cred; -+ const struct cred *cred2; -+ -+ if (sig != SIGSEGV && sig != SIGKILL && sig != SIGBUS && sig != SIGILL) -+ return; -+ -+ if (unlikely(!gr_acl_is_enabled())) -+ return; -+ -+ curr = task->acl; -+ -+ if (!(curr->resmask & (1 << GR_CRASH_RES))) -+ return; -+ -+ if (time_before_eq(curr->expires, get_seconds())) { -+ curr->expires = 0; -+ curr->crashes = 0; -+ } -+ -+ curr->crashes++; -+ -+ if (!curr->expires) -+ curr->expires = get_seconds() + curr->res[GR_CRASH_RES].rlim_max; -+ -+ if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) && -+ time_after(curr->expires, get_seconds())) { -+ rcu_read_lock(); -+ cred = __task_cred(task); -+ if (cred->uid && proc_is_setxid(cred)) { -+ gr_log_crash1(GR_DONT_AUDIT, GR_SEGVSTART_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max); -+ spin_lock(&gr_uid_lock); -+ gr_insert_uid(cred->uid, curr->expires); -+ spin_unlock(&gr_uid_lock); -+ curr->expires = 0; -+ curr->crashes = 0; -+ read_lock(&tasklist_lock); -+ do_each_thread(tsk2, tsk) { -+ cred2 = __task_cred(tsk); -+ if (tsk != task && cred2->uid == cred->uid) -+ gr_fake_force_sig(SIGKILL, tsk); -+ } while_each_thread(tsk2, tsk); -+ read_unlock(&tasklist_lock); -+ } else { -+ gr_log_crash2(GR_DONT_AUDIT, GR_SEGVNOSUID_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max); -+ read_lock(&tasklist_lock); -+ read_lock(&grsec_exec_file_lock); -+ do_each_thread(tsk2, tsk) { -+ if (likely(tsk != task)) { -+ // if this thread has the same subject as the one that triggered -+ // RES_CRASH and it's the same binary, kill it -+ if (tsk->acl == task->acl && tsk->exec_file == task->exec_file) -+ gr_fake_force_sig(SIGKILL, tsk); -+ } -+ } while_each_thread(tsk2, tsk); -+ read_unlock(&grsec_exec_file_lock); -+ read_unlock(&tasklist_lock); -+ } -+ rcu_read_unlock(); -+ } -+ -+ return; -+} -+ -+int -+gr_check_crash_exec(const struct file *filp) -+{ -+ struct acl_subject_label *curr; -+ -+ if (unlikely(!gr_acl_is_enabled())) -+ return 0; -+ -+ read_lock(&gr_inode_lock); -+ curr = lookup_acl_subj_label(filp->f_path.dentry->d_inode->i_ino, -+ __get_dev(filp->f_path.dentry), -+ current->role); -+ read_unlock(&gr_inode_lock); -+ -+ if (!curr || !(curr->resmask & (1 << GR_CRASH_RES)) || -+ (!curr->crashes && !curr->expires)) -+ return 0; -+ -+ if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) && -+ time_after(curr->expires, get_seconds())) -+ return 1; -+ else if (time_before_eq(curr->expires, get_seconds())) { -+ curr->crashes = 0; -+ curr->expires = 0; -+ } -+ -+ return 0; -+} -+ -+void -+gr_handle_alertkill(struct task_struct *task) -+{ -+ struct acl_subject_label *curracl; -+ __u32 curr_ip; -+ struct task_struct *p, *p2; -+ -+ if (unlikely(!gr_acl_is_enabled())) -+ return; -+ -+ curracl = task->acl; -+ curr_ip = task->signal->curr_ip; -+ -+ if ((curracl->mode & GR_KILLIPPROC) && curr_ip) { -+ read_lock(&tasklist_lock); -+ do_each_thread(p2, p) { -+ if (p->signal->curr_ip == curr_ip) -+ gr_fake_force_sig(SIGKILL, p); -+ } while_each_thread(p2, p); -+ read_unlock(&tasklist_lock); -+ } else if (curracl->mode & GR_KILLPROC) -+ gr_fake_force_sig(SIGKILL, task); -+ -+ return; -+} -diff --git a/grsecurity/gracl_shm.c b/grsecurity/gracl_shm.c -new file mode 100644 -index 0000000..9d83a69 ---- /dev/null -+++ b/grsecurity/gracl_shm.c -@@ -0,0 +1,40 @@ -+#include <linux/kernel.h> -+#include <linux/mm.h> -+#include <linux/sched.h> -+#include <linux/file.h> -+#include <linux/ipc.h> -+#include <linux/gracl.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+int -+gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid, -+ const time_t shm_createtime, const uid_t cuid, const int shmid) -+{ -+ struct task_struct *task; -+ -+ if (!gr_acl_is_enabled()) -+ return 1; -+ -+ rcu_read_lock(); -+ read_lock(&tasklist_lock); -+ -+ task = find_task_by_vpid(shm_cprid); -+ -+ if (unlikely(!task)) -+ task = find_task_by_vpid(shm_lapid); -+ -+ if (unlikely(task && (time_before_eq((unsigned long)task->start_time.tv_sec, (unsigned long)shm_createtime) || -+ (task->pid == shm_lapid)) && -+ (task->acl->mode & GR_PROTSHM) && -+ (task->acl != current->acl))) { -+ read_unlock(&tasklist_lock); -+ rcu_read_unlock(); -+ gr_log_int3(GR_DONT_AUDIT, GR_SHMAT_ACL_MSG, cuid, shm_cprid, shmid); -+ return 0; -+ } -+ read_unlock(&tasklist_lock); -+ rcu_read_unlock(); -+ -+ return 1; -+} -diff --git a/grsecurity/grsec_chdir.c b/grsecurity/grsec_chdir.c -new file mode 100644 -index 0000000..bc0be01 ---- /dev/null -+++ b/grsecurity/grsec_chdir.c -@@ -0,0 +1,19 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/fs.h> -+#include <linux/file.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+void -+gr_log_chdir(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR -+ if ((grsec_enable_chdir && grsec_enable_group && -+ in_group_p(grsec_audit_gid)) || (grsec_enable_chdir && -+ !grsec_enable_group)) { -+ gr_log_fs_generic(GR_DO_AUDIT, GR_CHDIR_AUDIT_MSG, dentry, mnt); -+ } -+#endif -+ return; -+} -diff --git a/grsecurity/grsec_chroot.c b/grsecurity/grsec_chroot.c -new file mode 100644 -index 0000000..9807ee2 ---- /dev/null -+++ b/grsecurity/grsec_chroot.c -@@ -0,0 +1,368 @@ -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/sched.h> -+#include <linux/file.h> -+#include <linux/fs.h> -+#include <linux/mount.h> -+#include <linux/types.h> -+#include "../fs/mount.h" -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+void gr_set_chroot_entries(struct task_struct *task, struct path *path) -+{ -+#ifdef CONFIG_GRKERNSEC -+ if (task->pid > 1 && path->dentry != init_task.fs->root.dentry && -+ path->dentry != task->nsproxy->mnt_ns->root->mnt.mnt_root) -+ task->gr_is_chrooted = 1; -+ else -+ task->gr_is_chrooted = 0; -+ -+ task->gr_chroot_dentry = path->dentry; -+#endif -+ return; -+} -+ -+void gr_clear_chroot_entries(struct task_struct *task) -+{ -+#ifdef CONFIG_GRKERNSEC -+ task->gr_is_chrooted = 0; -+ task->gr_chroot_dentry = NULL; -+#endif -+ return; -+} -+ -+int -+gr_handle_chroot_unix(const pid_t pid) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX -+ struct task_struct *p; -+ -+ if (unlikely(!grsec_enable_chroot_unix)) -+ return 1; -+ -+ if (likely(!proc_is_chrooted(current))) -+ return 1; -+ -+ rcu_read_lock(); -+ read_lock(&tasklist_lock); -+ p = find_task_by_vpid_unrestricted(pid); -+ if (unlikely(p && !have_same_root(current, p))) { -+ read_unlock(&tasklist_lock); -+ rcu_read_unlock(); -+ gr_log_noargs(GR_DONT_AUDIT, GR_UNIX_CHROOT_MSG); -+ return 0; -+ } -+ read_unlock(&tasklist_lock); -+ rcu_read_unlock(); -+#endif -+ return 1; -+} -+ -+int -+gr_handle_chroot_nice(void) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE -+ if (grsec_enable_chroot_nice && proc_is_chrooted(current)) { -+ gr_log_noargs(GR_DONT_AUDIT, GR_NICE_CHROOT_MSG); -+ return -EPERM; -+ } -+#endif -+ return 0; -+} -+ -+int -+gr_handle_chroot_setpriority(struct task_struct *p, const int niceval) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE -+ if (grsec_enable_chroot_nice && (niceval < task_nice(p)) -+ && proc_is_chrooted(current)) { -+ gr_log_str_int(GR_DONT_AUDIT, GR_PRIORITY_CHROOT_MSG, p->comm, p->pid); -+ return -EACCES; -+ } -+#endif -+ return 0; -+} -+ -+int -+gr_handle_chroot_rawio(const struct inode *inode) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS -+ if (grsec_enable_chroot_caps && proc_is_chrooted(current) && -+ inode && S_ISBLK(inode->i_mode) && !capable(CAP_SYS_RAWIO)) -+ return 1; -+#endif -+ return 0; -+} -+ -+int -+gr_handle_chroot_fowner(struct pid *pid, enum pid_type type) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK -+ struct task_struct *p; -+ int ret = 0; -+ if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || !pid) -+ return ret; -+ -+ read_lock(&tasklist_lock); -+ do_each_pid_task(pid, type, p) { -+ if (!have_same_root(current, p)) { -+ ret = 1; -+ goto out; -+ } -+ } while_each_pid_task(pid, type, p); -+out: -+ read_unlock(&tasklist_lock); -+ return ret; -+#endif -+ return 0; -+} -+ -+int -+gr_pid_is_chrooted(struct task_struct *p) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK -+ if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || p == NULL) -+ return 0; -+ -+ if ((p->exit_state & (EXIT_ZOMBIE | EXIT_DEAD)) || -+ !have_same_root(current, p)) { -+ return 1; -+ } -+#endif -+ return 0; -+} -+ -+EXPORT_SYMBOL(gr_pid_is_chrooted); -+ -+#if defined(CONFIG_GRKERNSEC_CHROOT_DOUBLE) || defined(CONFIG_GRKERNSEC_CHROOT_FCHDIR) -+int gr_is_outside_chroot(const struct dentry *u_dentry, const struct vfsmount *u_mnt) -+{ -+ struct path path, currentroot; -+ int ret = 0; -+ -+ path.dentry = (struct dentry *)u_dentry; -+ path.mnt = (struct vfsmount *)u_mnt; -+ get_fs_root(current->fs, &currentroot); -+ if (path_is_under(&path, &currentroot)) -+ ret = 1; -+ path_put(&currentroot); -+ -+ return ret; -+} -+#endif -+ -+int -+gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR -+ if (!grsec_enable_chroot_fchdir) -+ return 1; -+ -+ if (!proc_is_chrooted(current)) -+ return 1; -+ else if (!gr_is_outside_chroot(u_dentry, u_mnt)) { -+ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_FCHDIR_MSG, u_dentry, u_mnt); -+ return 0; -+ } -+#endif -+ return 1; -+} -+ -+int -+gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid, -+ const time_t shm_createtime) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT -+ struct task_struct *p; -+ time_t starttime; -+ -+ if (unlikely(!grsec_enable_chroot_shmat)) -+ return 1; -+ -+ if (likely(!proc_is_chrooted(current))) -+ return 1; -+ -+ rcu_read_lock(); -+ read_lock(&tasklist_lock); -+ -+ if ((p = find_task_by_vpid_unrestricted(shm_cprid))) { -+ starttime = p->start_time.tv_sec; -+ if (time_before_eq((unsigned long)starttime, (unsigned long)shm_createtime)) { -+ if (have_same_root(current, p)) { -+ goto allow; -+ } else { -+ read_unlock(&tasklist_lock); -+ rcu_read_unlock(); -+ gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG); -+ return 0; -+ } -+ } -+ /* creator exited, pid reuse, fall through to next check */ -+ } -+ if ((p = find_task_by_vpid_unrestricted(shm_lapid))) { -+ if (unlikely(!have_same_root(current, p))) { -+ read_unlock(&tasklist_lock); -+ rcu_read_unlock(); -+ gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG); -+ return 0; -+ } -+ } -+ -+allow: -+ read_unlock(&tasklist_lock); -+ rcu_read_unlock(); -+#endif -+ return 1; -+} -+ -+void -+gr_log_chroot_exec(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG -+ if (grsec_enable_chroot_execlog && proc_is_chrooted(current)) -+ gr_log_fs_generic(GR_DO_AUDIT, GR_EXEC_CHROOT_MSG, dentry, mnt); -+#endif -+ return; -+} -+ -+int -+gr_handle_chroot_mknod(const struct dentry *dentry, -+ const struct vfsmount *mnt, const int mode) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD -+ if (grsec_enable_chroot_mknod && !S_ISFIFO(mode) && !S_ISREG(mode) && -+ proc_is_chrooted(current)) { -+ gr_log_fs_generic(GR_DONT_AUDIT, GR_MKNOD_CHROOT_MSG, dentry, mnt); -+ return -EPERM; -+ } -+#endif -+ return 0; -+} -+ -+int -+gr_handle_chroot_mount(const struct dentry *dentry, -+ const struct vfsmount *mnt, const char *dev_name) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT -+ if (grsec_enable_chroot_mount && proc_is_chrooted(current)) { -+ gr_log_str_fs(GR_DONT_AUDIT, GR_MOUNT_CHROOT_MSG, dev_name ? dev_name : "none", dentry, mnt); -+ return -EPERM; -+ } -+#endif -+ return 0; -+} -+ -+int -+gr_handle_chroot_pivot(void) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT -+ if (grsec_enable_chroot_pivot && proc_is_chrooted(current)) { -+ gr_log_noargs(GR_DONT_AUDIT, GR_PIVOT_CHROOT_MSG); -+ return -EPERM; -+ } -+#endif -+ return 0; -+} -+ -+int -+gr_handle_chroot_chroot(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE -+ if (grsec_enable_chroot_double && proc_is_chrooted(current) && -+ !gr_is_outside_chroot(dentry, mnt)) { -+ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_CHROOT_MSG, dentry, mnt); -+ return -EPERM; -+ } -+#endif -+ return 0; -+} -+ -+extern const char *captab_log[]; -+extern int captab_log_entries; -+ -+int -+gr_task_chroot_is_capable(const struct task_struct *task, const struct cred *cred, const int cap) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS -+ if (grsec_enable_chroot_caps && proc_is_chrooted(task)) { -+ kernel_cap_t chroot_caps = GR_CHROOT_CAPS; -+ if (cap_raised(chroot_caps, cap)) { -+ if (cap_raised(cred->cap_effective, cap) && cap < captab_log_entries) { -+ gr_log_cap(GR_DONT_AUDIT, GR_CAP_CHROOT_MSG, task, captab_log[cap]); -+ } -+ return 0; -+ } -+ } -+#endif -+ return 1; -+} -+ -+int -+gr_chroot_is_capable(const int cap) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS -+ return gr_task_chroot_is_capable(current, current_cred(), cap); -+#endif -+ return 1; -+} -+ -+int -+gr_task_chroot_is_capable_nolog(const struct task_struct *task, const int cap) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS -+ if (grsec_enable_chroot_caps && proc_is_chrooted(task)) { -+ kernel_cap_t chroot_caps = GR_CHROOT_CAPS; -+ if (cap_raised(chroot_caps, cap)) { -+ return 0; -+ } -+ } -+#endif -+ return 1; -+} -+ -+int -+gr_chroot_is_capable_nolog(const int cap) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS -+ return gr_task_chroot_is_capable_nolog(current, cap); -+#endif -+ return 1; -+} -+ -+int -+gr_handle_chroot_sysctl(const int op) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL -+ if (grsec_enable_chroot_sysctl && (op & MAY_WRITE) && -+ proc_is_chrooted(current)) -+ return -EACCES; -+#endif -+ return 0; -+} -+ -+void -+gr_handle_chroot_chdir(struct path *path) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR -+ if (grsec_enable_chroot_chdir) -+ set_fs_pwd(current->fs, path); -+#endif -+ return; -+} -+ -+int -+gr_handle_chroot_chmod(const struct dentry *dentry, -+ const struct vfsmount *mnt, const int mode) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD -+ /* allow chmod +s on directories, but not files */ -+ if (grsec_enable_chroot_chmod && !S_ISDIR(dentry->d_inode->i_mode) && -+ ((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))) && -+ proc_is_chrooted(current)) { -+ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHMOD_CHROOT_MSG, dentry, mnt); -+ return -EPERM; -+ } -+#endif -+ return 0; -+} -diff --git a/grsecurity/grsec_disabled.c b/grsecurity/grsec_disabled.c -new file mode 100644 -index 0000000..213ad8b ---- /dev/null -+++ b/grsecurity/grsec_disabled.c -@@ -0,0 +1,437 @@ -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/sched.h> -+#include <linux/file.h> -+#include <linux/fs.h> -+#include <linux/kdev_t.h> -+#include <linux/net.h> -+#include <linux/in.h> -+#include <linux/ip.h> -+#include <linux/skbuff.h> -+#include <linux/sysctl.h> -+ -+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS -+void -+pax_set_initial_flags(struct linux_binprm *bprm) -+{ -+ return; -+} -+#endif -+ -+#ifdef CONFIG_SYSCTL -+__u32 -+gr_handle_sysctl(const struct ctl_table * table, const int op) -+{ -+ return 0; -+} -+#endif -+ -+#ifdef CONFIG_TASKSTATS -+int gr_is_taskstats_denied(int pid) -+{ -+ return 0; -+} -+#endif -+ -+int -+gr_acl_is_enabled(void) -+{ -+ return 0; -+} -+ -+void -+gr_handle_proc_create(const struct dentry *dentry, const struct inode *inode) -+{ -+ return; -+} -+ -+int -+gr_handle_rawio(const struct inode *inode) -+{ -+ return 0; -+} -+ -+void -+gr_acl_handle_psacct(struct task_struct *task, const long code) -+{ -+ return; -+} -+ -+int -+gr_handle_ptrace(struct task_struct *task, const long request) -+{ -+ return 0; -+} -+ -+int -+gr_handle_proc_ptrace(struct task_struct *task) -+{ -+ return 0; -+} -+ -+void -+gr_learn_resource(const struct task_struct *task, -+ const int res, const unsigned long wanted, const int gt) -+{ -+ return; -+} -+ -+int -+gr_set_acls(const int type) -+{ -+ return 0; -+} -+ -+int -+gr_check_hidden_task(const struct task_struct *tsk) -+{ -+ return 0; -+} -+ -+int -+gr_check_protected_task(const struct task_struct *task) -+{ -+ return 0; -+} -+ -+int -+gr_check_protected_task_fowner(struct pid *pid, enum pid_type type) -+{ -+ return 0; -+} -+ -+void -+gr_copy_label(struct task_struct *tsk) -+{ -+ return; -+} -+ -+void -+gr_set_pax_flags(struct task_struct *task) -+{ -+ return; -+} -+ -+int -+gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt, -+ const int unsafe_share) -+{ -+ return 0; -+} -+ -+void -+gr_handle_delete(const ino_t ino, const dev_t dev) -+{ -+ return; -+} -+ -+void -+gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return; -+} -+ -+void -+gr_handle_crash(struct task_struct *task, const int sig) -+{ -+ return; -+} -+ -+int -+gr_check_crash_exec(const struct file *filp) -+{ -+ return 0; -+} -+ -+int -+gr_check_crash_uid(const uid_t uid) -+{ -+ return 0; -+} -+ -+void -+gr_handle_rename(struct inode *old_dir, struct inode *new_dir, -+ struct dentry *old_dentry, -+ struct dentry *new_dentry, -+ struct vfsmount *mnt, const __u8 replace) -+{ -+ return; -+} -+ -+int -+gr_search_socket(const int family, const int type, const int protocol) -+{ -+ return 1; -+} -+ -+int -+gr_search_connectbind(const int mode, const struct socket *sock, -+ const struct sockaddr_in *addr) -+{ -+ return 0; -+} -+ -+void -+gr_handle_alertkill(struct task_struct *task) -+{ -+ return; -+} -+ -+__u32 -+gr_acl_handle_execve(const struct dentry * dentry, const struct vfsmount * mnt) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_hidden_file(const struct dentry * dentry, -+ const struct vfsmount * mnt) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt, -+ int acc_mode) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_unlink(const struct dentry * dentry, const struct vfsmount * mnt) -+{ -+ return 1; -+} -+ -+int -+gr_acl_handle_mmap(const struct file *file, const unsigned long prot, -+ unsigned int *vm_flags) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_truncate(const struct dentry * dentry, -+ const struct vfsmount * mnt) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_utime(const struct dentry * dentry, const struct vfsmount * mnt) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_access(const struct dentry * dentry, -+ const struct vfsmount * mnt, const int fmode) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_chmod(const struct dentry * dentry, const struct vfsmount * mnt, -+ umode_t *mode) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_chown(const struct dentry * dentry, const struct vfsmount * mnt) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_setxattr(const struct dentry * dentry, const struct vfsmount * mnt) -+{ -+ return 1; -+} -+ -+void -+grsecurity_init(void) -+{ -+ return; -+} -+ -+umode_t gr_acl_umask(void) -+{ -+ return 0; -+} -+ -+__u32 -+gr_acl_handle_mknod(const struct dentry * new_dentry, -+ const struct dentry * parent_dentry, -+ const struct vfsmount * parent_mnt, -+ const int mode) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_mkdir(const struct dentry * new_dentry, -+ const struct dentry * parent_dentry, -+ const struct vfsmount * parent_mnt) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_symlink(const struct dentry * new_dentry, -+ const struct dentry * parent_dentry, -+ const struct vfsmount * parent_mnt, const char *from) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_link(const struct dentry * new_dentry, -+ const struct dentry * parent_dentry, -+ const struct vfsmount * parent_mnt, -+ const struct dentry * old_dentry, -+ const struct vfsmount * old_mnt, const char *to) -+{ -+ return 1; -+} -+ -+int -+gr_acl_handle_rename(const struct dentry *new_dentry, -+ const struct dentry *parent_dentry, -+ const struct vfsmount *parent_mnt, -+ const struct dentry *old_dentry, -+ const struct inode *old_parent_inode, -+ const struct vfsmount *old_mnt, const char *newname) -+{ -+ return 0; -+} -+ -+int -+gr_acl_handle_filldir(const struct file *file, const char *name, -+ const int namelen, const ino_t ino) -+{ -+ return 1; -+} -+ -+int -+gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid, -+ const time_t shm_createtime, const uid_t cuid, const int shmid) -+{ -+ return 1; -+} -+ -+int -+gr_search_bind(const struct socket *sock, const struct sockaddr_in *addr) -+{ -+ return 0; -+} -+ -+int -+gr_search_accept(const struct socket *sock) -+{ -+ return 0; -+} -+ -+int -+gr_search_listen(const struct socket *sock) -+{ -+ return 0; -+} -+ -+int -+gr_search_connect(const struct socket *sock, const struct sockaddr_in *addr) -+{ -+ return 0; -+} -+ -+__u32 -+gr_acl_handle_unix(const struct dentry * dentry, const struct vfsmount * mnt) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_creat(const struct dentry * dentry, -+ const struct dentry * p_dentry, -+ const struct vfsmount * p_mnt, int open_flags, int acc_mode, -+ const int imode) -+{ -+ return 1; -+} -+ -+void -+gr_acl_handle_exit(void) -+{ -+ return; -+} -+ -+int -+gr_acl_handle_mprotect(const struct file *file, const unsigned long prot) -+{ -+ return 1; -+} -+ -+void -+gr_set_role_label(const uid_t uid, const gid_t gid) -+{ -+ return; -+} -+ -+int -+gr_acl_handle_procpidmem(const struct task_struct *task) -+{ -+ return 0; -+} -+ -+int -+gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb) -+{ -+ return 0; -+} -+ -+int -+gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr) -+{ -+ return 0; -+} -+ -+void -+gr_set_kernel_label(struct task_struct *task) -+{ -+ return; -+} -+ -+int -+gr_check_user_change(int real, int effective, int fs) -+{ -+ return 0; -+} -+ -+int -+gr_check_group_change(int real, int effective, int fs) -+{ -+ return 0; -+} -+ -+int gr_acl_enable_at_secure(void) -+{ -+ return 0; -+} -+ -+dev_t gr_get_dev_from_dentry(struct dentry *dentry) -+{ -+ return dentry->d_inode->i_sb->s_dev; -+} -+ -+EXPORT_SYMBOL(gr_learn_resource); -+EXPORT_SYMBOL(gr_set_kernel_label); -+#ifdef CONFIG_SECURITY -+EXPORT_SYMBOL(gr_check_user_change); -+EXPORT_SYMBOL(gr_check_group_change); -+#endif -diff --git a/grsecurity/grsec_exec.c b/grsecurity/grsec_exec.c -new file mode 100644 -index 0000000..abfa971 ---- /dev/null -+++ b/grsecurity/grsec_exec.c -@@ -0,0 +1,174 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/file.h> -+#include <linux/binfmts.h> -+#include <linux/fs.h> -+#include <linux/types.h> -+#include <linux/grdefs.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+#include <linux/capability.h> -+#include <linux/module.h> -+ -+#include <asm/uaccess.h> -+ -+#ifdef CONFIG_GRKERNSEC_EXECLOG -+static char gr_exec_arg_buf[132]; -+static DEFINE_MUTEX(gr_exec_arg_mutex); -+#endif -+ -+extern const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr); -+ -+void -+gr_handle_exec_args(struct linux_binprm *bprm, struct user_arg_ptr argv) -+{ -+#ifdef CONFIG_GRKERNSEC_EXECLOG -+ char *grarg = gr_exec_arg_buf; -+ unsigned int i, x, execlen = 0; -+ char c; -+ -+ if (!((grsec_enable_execlog && grsec_enable_group && -+ in_group_p(grsec_audit_gid)) -+ || (grsec_enable_execlog && !grsec_enable_group))) -+ return; -+ -+ mutex_lock(&gr_exec_arg_mutex); -+ memset(grarg, 0, sizeof(gr_exec_arg_buf)); -+ -+ for (i = 0; i < bprm->argc && execlen < 128; i++) { -+ const char __user *p; -+ unsigned int len; -+ -+ p = get_user_arg_ptr(argv, i); -+ if (IS_ERR(p)) -+ goto log; -+ -+ len = strnlen_user(p, 128 - execlen); -+ if (len > 128 - execlen) -+ len = 128 - execlen; -+ else if (len > 0) -+ len--; -+ if (copy_from_user(grarg + execlen, p, len)) -+ goto log; -+ -+ /* rewrite unprintable characters */ -+ for (x = 0; x < len; x++) { -+ c = *(grarg + execlen + x); -+ if (c < 32 || c > 126) -+ *(grarg + execlen + x) = ' '; -+ } -+ -+ execlen += len; -+ *(grarg + execlen) = ' '; -+ *(grarg + execlen + 1) = '\0'; -+ execlen++; -+ } -+ -+ log: -+ gr_log_fs_str(GR_DO_AUDIT, GR_EXEC_AUDIT_MSG, bprm->file->f_path.dentry, -+ bprm->file->f_path.mnt, grarg); -+ mutex_unlock(&gr_exec_arg_mutex); -+#endif -+ return; -+} -+ -+#ifdef CONFIG_GRKERNSEC -+extern int gr_acl_is_capable(const int cap); -+extern int gr_acl_is_capable_nolog(const int cap); -+extern int gr_task_acl_is_capable(const struct task_struct *task, const struct cred *cred, const int cap); -+extern int gr_task_acl_is_capable_nolog(const struct task_struct *task, const int cap); -+extern int gr_chroot_is_capable(const int cap); -+extern int gr_chroot_is_capable_nolog(const int cap); -+extern int gr_task_chroot_is_capable(const struct task_struct *task, const struct cred *cred, const int cap); -+extern int gr_task_chroot_is_capable_nolog(const struct task_struct *task, const int cap); -+#endif -+ -+const char *captab_log[] = { -+ "CAP_CHOWN", -+ "CAP_DAC_OVERRIDE", -+ "CAP_DAC_READ_SEARCH", -+ "CAP_FOWNER", -+ "CAP_FSETID", -+ "CAP_KILL", -+ "CAP_SETGID", -+ "CAP_SETUID", -+ "CAP_SETPCAP", -+ "CAP_LINUX_IMMUTABLE", -+ "CAP_NET_BIND_SERVICE", -+ "CAP_NET_BROADCAST", -+ "CAP_NET_ADMIN", -+ "CAP_NET_RAW", -+ "CAP_IPC_LOCK", -+ "CAP_IPC_OWNER", -+ "CAP_SYS_MODULE", -+ "CAP_SYS_RAWIO", -+ "CAP_SYS_CHROOT", -+ "CAP_SYS_PTRACE", -+ "CAP_SYS_PACCT", -+ "CAP_SYS_ADMIN", -+ "CAP_SYS_BOOT", -+ "CAP_SYS_NICE", -+ "CAP_SYS_RESOURCE", -+ "CAP_SYS_TIME", -+ "CAP_SYS_TTY_CONFIG", -+ "CAP_MKNOD", -+ "CAP_LEASE", -+ "CAP_AUDIT_WRITE", -+ "CAP_AUDIT_CONTROL", -+ "CAP_SETFCAP", -+ "CAP_MAC_OVERRIDE", -+ "CAP_MAC_ADMIN", -+ "CAP_SYSLOG", -+ "CAP_WAKE_ALARM" -+}; -+ -+int captab_log_entries = sizeof(captab_log)/sizeof(captab_log[0]); -+ -+int gr_is_capable(const int cap) -+{ -+#ifdef CONFIG_GRKERNSEC -+ if (gr_acl_is_capable(cap) && gr_chroot_is_capable(cap)) -+ return 1; -+ return 0; -+#else -+ return 1; -+#endif -+} -+ -+int gr_task_is_capable(const struct task_struct *task, const struct cred *cred, const int cap) -+{ -+#ifdef CONFIG_GRKERNSEC -+ if (gr_task_acl_is_capable(task, cred, cap) && gr_task_chroot_is_capable(task, cred, cap)) -+ return 1; -+ return 0; -+#else -+ return 1; -+#endif -+} -+ -+int gr_is_capable_nolog(const int cap) -+{ -+#ifdef CONFIG_GRKERNSEC -+ if (gr_acl_is_capable_nolog(cap) && gr_chroot_is_capable_nolog(cap)) -+ return 1; -+ return 0; -+#else -+ return 1; -+#endif -+} -+ -+int gr_task_is_capable_nolog(const struct task_struct *task, const int cap) -+{ -+#ifdef CONFIG_GRKERNSEC -+ if (gr_task_acl_is_capable_nolog(task, cap) && gr_task_chroot_is_capable_nolog(task, cap)) -+ return 1; -+ return 0; -+#else -+ return 1; -+#endif -+} -+ -+EXPORT_SYMBOL(gr_is_capable); -+EXPORT_SYMBOL(gr_is_capable_nolog); -+EXPORT_SYMBOL(gr_task_is_capable); -+EXPORT_SYMBOL(gr_task_is_capable_nolog); -diff --git a/grsecurity/grsec_fifo.c b/grsecurity/grsec_fifo.c -new file mode 100644 -index 0000000..d3ee748 ---- /dev/null -+++ b/grsecurity/grsec_fifo.c -@@ -0,0 +1,24 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/fs.h> -+#include <linux/file.h> -+#include <linux/grinternal.h> -+ -+int -+gr_handle_fifo(const struct dentry *dentry, const struct vfsmount *mnt, -+ const struct dentry *dir, const int flag, const int acc_mode) -+{ -+#ifdef CONFIG_GRKERNSEC_FIFO -+ const struct cred *cred = current_cred(); -+ -+ if (grsec_enable_fifo && S_ISFIFO(dentry->d_inode->i_mode) && -+ !(flag & O_EXCL) && (dir->d_inode->i_mode & S_ISVTX) && -+ (dentry->d_inode->i_uid != dir->d_inode->i_uid) && -+ (cred->fsuid != dentry->d_inode->i_uid)) { -+ if (!inode_permission(dentry->d_inode, acc_mode)) -+ gr_log_fs_int2(GR_DONT_AUDIT, GR_FIFO_MSG, dentry, mnt, dentry->d_inode->i_uid, dentry->d_inode->i_gid); -+ return -EACCES; -+ } -+#endif -+ return 0; -+} -diff --git a/grsecurity/grsec_fork.c b/grsecurity/grsec_fork.c -new file mode 100644 -index 0000000..8ca18bf ---- /dev/null -+++ b/grsecurity/grsec_fork.c -@@ -0,0 +1,23 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+#include <linux/errno.h> -+ -+void -+gr_log_forkfail(const int retval) -+{ -+#ifdef CONFIG_GRKERNSEC_FORKFAIL -+ if (grsec_enable_forkfail && (retval == -EAGAIN || retval == -ENOMEM)) { -+ switch (retval) { -+ case -EAGAIN: -+ gr_log_str(GR_DONT_AUDIT, GR_FAILFORK_MSG, "EAGAIN"); -+ break; -+ case -ENOMEM: -+ gr_log_str(GR_DONT_AUDIT, GR_FAILFORK_MSG, "ENOMEM"); -+ break; -+ } -+ } -+#endif -+ return; -+} -diff --git a/grsecurity/grsec_init.c b/grsecurity/grsec_init.c -new file mode 100644 -index 0000000..01ddde4 ---- /dev/null -+++ b/grsecurity/grsec_init.c -@@ -0,0 +1,277 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/mm.h> -+#include <linux/gracl.h> -+#include <linux/slab.h> -+#include <linux/vmalloc.h> -+#include <linux/percpu.h> -+#include <linux/module.h> -+ -+int grsec_enable_ptrace_readexec; -+int grsec_enable_setxid; -+int grsec_enable_brute; -+int grsec_enable_link; -+int grsec_enable_dmesg; -+int grsec_enable_harden_ptrace; -+int grsec_enable_fifo; -+int grsec_enable_execlog; -+int grsec_enable_signal; -+int grsec_enable_forkfail; -+int grsec_enable_audit_ptrace; -+int grsec_enable_time; -+int grsec_enable_audit_textrel; -+int grsec_enable_group; -+int grsec_audit_gid; -+int grsec_enable_chdir; -+int grsec_enable_mount; -+int grsec_enable_rofs; -+int grsec_enable_chroot_findtask; -+int grsec_enable_chroot_mount; -+int grsec_enable_chroot_shmat; -+int grsec_enable_chroot_fchdir; -+int grsec_enable_chroot_double; -+int grsec_enable_chroot_pivot; -+int grsec_enable_chroot_chdir; -+int grsec_enable_chroot_chmod; -+int grsec_enable_chroot_mknod; -+int grsec_enable_chroot_nice; -+int grsec_enable_chroot_execlog; -+int grsec_enable_chroot_caps; -+int grsec_enable_chroot_sysctl; -+int grsec_enable_chroot_unix; -+int grsec_enable_tpe; -+int grsec_tpe_gid; -+int grsec_enable_blackhole; -+#ifdef CONFIG_IPV6_MODULE -+EXPORT_SYMBOL(grsec_enable_blackhole); -+#endif -+int grsec_lastack_retries; -+int grsec_enable_tpe_all; -+int grsec_enable_tpe_invert; -+int grsec_enable_socket_all; -+int grsec_socket_all_gid; -+int grsec_enable_socket_client; -+int grsec_socket_client_gid; -+int grsec_enable_socket_server; -+int grsec_socket_server_gid; -+int grsec_resource_logging; -+int grsec_disable_privio; -+int grsec_enable_log_rwxmaps; -+int grsec_lock; -+ -+DEFINE_SPINLOCK(grsec_alert_lock); -+unsigned long grsec_alert_wtime = 0; -+unsigned long grsec_alert_fyet = 0; -+ -+DEFINE_SPINLOCK(grsec_audit_lock); -+ -+DEFINE_RWLOCK(grsec_exec_file_lock); -+ -+char *gr_shared_page[4]; -+ -+char *gr_alert_log_fmt; -+char *gr_audit_log_fmt; -+char *gr_alert_log_buf; -+char *gr_audit_log_buf; -+ -+extern struct gr_arg *gr_usermode; -+extern unsigned char *gr_system_salt; -+extern unsigned char *gr_system_sum; -+ -+void __init -+grsecurity_init(void) -+{ -+ int j; -+ /* create the per-cpu shared pages */ -+ -+#ifdef CONFIG_X86 -+ memset((char *)(0x41a + PAGE_OFFSET), 0, 36); -+#endif -+ -+ for (j = 0; j < 4; j++) { -+ gr_shared_page[j] = (char *)__alloc_percpu(PAGE_SIZE, __alignof__(unsigned long long)); -+ if (gr_shared_page[j] == NULL) { -+ panic("Unable to allocate grsecurity shared page"); -+ return; -+ } -+ } -+ -+ /* allocate log buffers */ -+ gr_alert_log_fmt = kmalloc(512, GFP_KERNEL); -+ if (!gr_alert_log_fmt) { -+ panic("Unable to allocate grsecurity alert log format buffer"); -+ return; -+ } -+ gr_audit_log_fmt = kmalloc(512, GFP_KERNEL); -+ if (!gr_audit_log_fmt) { -+ panic("Unable to allocate grsecurity audit log format buffer"); -+ return; -+ } -+ gr_alert_log_buf = (char *) get_zeroed_page(GFP_KERNEL); -+ if (!gr_alert_log_buf) { -+ panic("Unable to allocate grsecurity alert log buffer"); -+ return; -+ } -+ gr_audit_log_buf = (char *) get_zeroed_page(GFP_KERNEL); -+ if (!gr_audit_log_buf) { -+ panic("Unable to allocate grsecurity audit log buffer"); -+ return; -+ } -+ -+ /* allocate memory for authentication structure */ -+ gr_usermode = kmalloc(sizeof(struct gr_arg), GFP_KERNEL); -+ gr_system_salt = kmalloc(GR_SALT_LEN, GFP_KERNEL); -+ gr_system_sum = kmalloc(GR_SHA_LEN, GFP_KERNEL); -+ -+ if (!gr_usermode || !gr_system_salt || !gr_system_sum) { -+ panic("Unable to allocate grsecurity authentication structure"); -+ return; -+ } -+ -+ -+#ifdef CONFIG_GRKERNSEC_IO -+#if !defined(CONFIG_GRKERNSEC_SYSCTL_DISTRO) -+ grsec_disable_privio = 1; -+#elif defined(CONFIG_GRKERNSEC_SYSCTL_ON) -+ grsec_disable_privio = 1; -+#else -+ grsec_disable_privio = 0; -+#endif -+#endif -+ -+#ifdef CONFIG_GRKERNSEC_TPE_INVERT -+ /* for backward compatibility, tpe_invert always defaults to on if -+ enabled in the kernel -+ */ -+ grsec_enable_tpe_invert = 1; -+#endif -+ -+#if !defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_SYSCTL_ON) -+#ifndef CONFIG_GRKERNSEC_SYSCTL -+ grsec_lock = 1; -+#endif -+ -+#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL -+ grsec_enable_audit_textrel = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG -+ grsec_enable_log_rwxmaps = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP -+ grsec_enable_group = 1; -+ grsec_audit_gid = CONFIG_GRKERNSEC_AUDIT_GID; -+#endif -+#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC -+ grsec_enable_ptrace_readexec = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR -+ grsec_enable_chdir = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE -+ grsec_enable_harden_ptrace = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT -+ grsec_enable_mount = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_LINK -+ grsec_enable_link = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_BRUTE -+ grsec_enable_brute = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_DMESG -+ grsec_enable_dmesg = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+ grsec_enable_blackhole = 1; -+ grsec_lastack_retries = 4; -+#endif -+#ifdef CONFIG_GRKERNSEC_FIFO -+ grsec_enable_fifo = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_EXECLOG -+ grsec_enable_execlog = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_SETXID -+ grsec_enable_setxid = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_SIGNAL -+ grsec_enable_signal = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_FORKFAIL -+ grsec_enable_forkfail = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_TIME -+ grsec_enable_time = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_RESLOG -+ grsec_resource_logging = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK -+ grsec_enable_chroot_findtask = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX -+ grsec_enable_chroot_unix = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT -+ grsec_enable_chroot_mount = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR -+ grsec_enable_chroot_fchdir = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT -+ grsec_enable_chroot_shmat = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE -+ grsec_enable_audit_ptrace = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE -+ grsec_enable_chroot_double = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT -+ grsec_enable_chroot_pivot = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR -+ grsec_enable_chroot_chdir = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD -+ grsec_enable_chroot_chmod = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD -+ grsec_enable_chroot_mknod = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE -+ grsec_enable_chroot_nice = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG -+ grsec_enable_chroot_execlog = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS -+ grsec_enable_chroot_caps = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL -+ grsec_enable_chroot_sysctl = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_TPE -+ grsec_enable_tpe = 1; -+ grsec_tpe_gid = CONFIG_GRKERNSEC_TPE_GID; -+#ifdef CONFIG_GRKERNSEC_TPE_ALL -+ grsec_enable_tpe_all = 1; -+#endif -+#endif -+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL -+ grsec_enable_socket_all = 1; -+ grsec_socket_all_gid = CONFIG_GRKERNSEC_SOCKET_ALL_GID; -+#endif -+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT -+ grsec_enable_socket_client = 1; -+ grsec_socket_client_gid = CONFIG_GRKERNSEC_SOCKET_CLIENT_GID; -+#endif -+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER -+ grsec_enable_socket_server = 1; -+ grsec_socket_server_gid = CONFIG_GRKERNSEC_SOCKET_SERVER_GID; -+#endif -+#endif -+ -+ return; -+} -diff --git a/grsecurity/grsec_link.c b/grsecurity/grsec_link.c -new file mode 100644 -index 0000000..3efe141 ---- /dev/null -+++ b/grsecurity/grsec_link.c -@@ -0,0 +1,43 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/fs.h> -+#include <linux/file.h> -+#include <linux/grinternal.h> -+ -+int -+gr_handle_follow_link(const struct inode *parent, -+ const struct inode *inode, -+ const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+#ifdef CONFIG_GRKERNSEC_LINK -+ const struct cred *cred = current_cred(); -+ -+ if (grsec_enable_link && S_ISLNK(inode->i_mode) && -+ (parent->i_mode & S_ISVTX) && (parent->i_uid != inode->i_uid) && -+ (parent->i_mode & S_IWOTH) && (cred->fsuid != inode->i_uid)) { -+ gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid); -+ return -EACCES; -+ } -+#endif -+ return 0; -+} -+ -+int -+gr_handle_hardlink(const struct dentry *dentry, -+ const struct vfsmount *mnt, -+ struct inode *inode, const int mode, const char *to) -+{ -+#ifdef CONFIG_GRKERNSEC_LINK -+ const struct cred *cred = current_cred(); -+ -+ if (grsec_enable_link && cred->fsuid != inode->i_uid && -+ (!S_ISREG(mode) || (mode & S_ISUID) || -+ ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) || -+ (inode_permission(inode, MAY_READ | MAY_WRITE))) && -+ !capable(CAP_FOWNER) && cred->uid) { -+ gr_log_fs_int2_str(GR_DONT_AUDIT, GR_HARDLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid, to); -+ return -EPERM; -+ } -+#endif -+ return 0; -+} -diff --git a/grsecurity/grsec_log.c b/grsecurity/grsec_log.c -new file mode 100644 -index 0000000..a45d2e9 ---- /dev/null -+++ b/grsecurity/grsec_log.c -@@ -0,0 +1,322 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/file.h> -+#include <linux/tty.h> -+#include <linux/fs.h> -+#include <linux/grinternal.h> -+ -+#ifdef CONFIG_TREE_PREEMPT_RCU -+#define DISABLE_PREEMPT() preempt_disable() -+#define ENABLE_PREEMPT() preempt_enable() -+#else -+#define DISABLE_PREEMPT() -+#define ENABLE_PREEMPT() -+#endif -+ -+#define BEGIN_LOCKS(x) \ -+ DISABLE_PREEMPT(); \ -+ rcu_read_lock(); \ -+ read_lock(&tasklist_lock); \ -+ read_lock(&grsec_exec_file_lock); \ -+ if (x != GR_DO_AUDIT) \ -+ spin_lock(&grsec_alert_lock); \ -+ else \ -+ spin_lock(&grsec_audit_lock) -+ -+#define END_LOCKS(x) \ -+ if (x != GR_DO_AUDIT) \ -+ spin_unlock(&grsec_alert_lock); \ -+ else \ -+ spin_unlock(&grsec_audit_lock); \ -+ read_unlock(&grsec_exec_file_lock); \ -+ read_unlock(&tasklist_lock); \ -+ rcu_read_unlock(); \ -+ ENABLE_PREEMPT(); \ -+ if (x == GR_DONT_AUDIT) \ -+ gr_handle_alertkill(current) -+ -+enum { -+ FLOODING, -+ NO_FLOODING -+}; -+ -+extern char *gr_alert_log_fmt; -+extern char *gr_audit_log_fmt; -+extern char *gr_alert_log_buf; -+extern char *gr_audit_log_buf; -+ -+static int gr_log_start(int audit) -+{ -+ char *loglevel = (audit == GR_DO_AUDIT) ? KERN_INFO : KERN_ALERT; -+ char *fmt = (audit == GR_DO_AUDIT) ? gr_audit_log_fmt : gr_alert_log_fmt; -+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf; -+#if (CONFIG_GRKERNSEC_FLOODTIME > 0 && CONFIG_GRKERNSEC_FLOODBURST > 0) -+ unsigned long curr_secs = get_seconds(); -+ -+ if (audit == GR_DO_AUDIT) -+ goto set_fmt; -+ -+ if (!grsec_alert_wtime || time_after(curr_secs, grsec_alert_wtime + CONFIG_GRKERNSEC_FLOODTIME)) { -+ grsec_alert_wtime = curr_secs; -+ grsec_alert_fyet = 0; -+ } else if (time_before_eq(curr_secs, grsec_alert_wtime + CONFIG_GRKERNSEC_FLOODTIME) -+ && (grsec_alert_fyet < CONFIG_GRKERNSEC_FLOODBURST)) { -+ grsec_alert_fyet++; -+ } else if (grsec_alert_fyet == CONFIG_GRKERNSEC_FLOODBURST) { -+ grsec_alert_wtime = curr_secs; -+ grsec_alert_fyet++; -+ printk(KERN_ALERT "grsec: more alerts, logging disabled for %d seconds\n", CONFIG_GRKERNSEC_FLOODTIME); -+ return FLOODING; -+ } -+ else return FLOODING; -+ -+set_fmt: -+#endif -+ memset(buf, 0, PAGE_SIZE); -+ if (current->signal->curr_ip && gr_acl_is_enabled()) { -+ sprintf(fmt, "%s%s", loglevel, "grsec: From %pI4: (%.64s:%c:%.950s) "); -+ snprintf(buf, PAGE_SIZE - 1, fmt, &current->signal->curr_ip, current->role->rolename, gr_roletype_to_char(), current->acl->filename); -+ } else if (current->signal->curr_ip) { -+ sprintf(fmt, "%s%s", loglevel, "grsec: From %pI4: "); -+ snprintf(buf, PAGE_SIZE - 1, fmt, &current->signal->curr_ip); -+ } else if (gr_acl_is_enabled()) { -+ sprintf(fmt, "%s%s", loglevel, "grsec: (%.64s:%c:%.950s) "); -+ snprintf(buf, PAGE_SIZE - 1, fmt, current->role->rolename, gr_roletype_to_char(), current->acl->filename); -+ } else { -+ sprintf(fmt, "%s%s", loglevel, "grsec: "); -+ strcpy(buf, fmt); -+ } -+ -+ return NO_FLOODING; -+} -+ -+static void gr_log_middle(int audit, const char *msg, va_list ap) -+ __attribute__ ((format (printf, 2, 0))); -+ -+static void gr_log_middle(int audit, const char *msg, va_list ap) -+{ -+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf; -+ unsigned int len = strlen(buf); -+ -+ vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap); -+ -+ return; -+} -+ -+static void gr_log_middle_varargs(int audit, const char *msg, ...) -+ __attribute__ ((format (printf, 2, 3))); -+ -+static void gr_log_middle_varargs(int audit, const char *msg, ...) -+{ -+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf; -+ unsigned int len = strlen(buf); -+ va_list ap; -+ -+ va_start(ap, msg); -+ vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap); -+ va_end(ap); -+ -+ return; -+} -+ -+static void gr_log_end(int audit, int append_default) -+{ -+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf; -+ -+ if (append_default) { -+ unsigned int len = strlen(buf); -+ snprintf(buf + len, PAGE_SIZE - len - 1, DEFAULTSECMSG, DEFAULTSECARGS(current, current_cred(), __task_cred(current->real_parent))); -+ } -+ -+ printk("%s\n", buf); -+ -+ return; -+} -+ -+void gr_log_varargs(int audit, const char *msg, int argtypes, ...) -+{ -+ int logtype; -+ char *result = (audit == GR_DO_AUDIT) ? "successful" : "denied"; -+ char *str1 = NULL, *str2 = NULL, *str3 = NULL; -+ void *voidptr = NULL; -+ int num1 = 0, num2 = 0; -+ unsigned long ulong1 = 0, ulong2 = 0; -+ struct dentry *dentry = NULL; -+ struct vfsmount *mnt = NULL; -+ struct file *file = NULL; -+ struct task_struct *task = NULL; -+ const struct cred *cred, *pcred; -+ va_list ap; -+ -+ BEGIN_LOCKS(audit); -+ logtype = gr_log_start(audit); -+ if (logtype == FLOODING) { -+ END_LOCKS(audit); -+ return; -+ } -+ va_start(ap, argtypes); -+ switch (argtypes) { -+ case GR_TTYSNIFF: -+ task = va_arg(ap, struct task_struct *); -+ gr_log_middle_varargs(audit, msg, &task->signal->curr_ip, gr_task_fullpath0(task), task->comm, task->pid, gr_parent_task_fullpath0(task), task->real_parent->comm, task->real_parent->pid); -+ break; -+ case GR_SYSCTL_HIDDEN: -+ str1 = va_arg(ap, char *); -+ gr_log_middle_varargs(audit, msg, result, str1); -+ break; -+ case GR_RBAC: -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt)); -+ break; -+ case GR_RBAC_STR: -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ str1 = va_arg(ap, char *); -+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1); -+ break; -+ case GR_STR_RBAC: -+ str1 = va_arg(ap, char *); -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ gr_log_middle_varargs(audit, msg, result, str1, gr_to_filename(dentry, mnt)); -+ break; -+ case GR_RBAC_MODE2: -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ str1 = va_arg(ap, char *); -+ str2 = va_arg(ap, char *); -+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2); -+ break; -+ case GR_RBAC_MODE3: -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ str1 = va_arg(ap, char *); -+ str2 = va_arg(ap, char *); -+ str3 = va_arg(ap, char *); -+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2, str3); -+ break; -+ case GR_FILENAME: -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt)); -+ break; -+ case GR_STR_FILENAME: -+ str1 = va_arg(ap, char *); -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ gr_log_middle_varargs(audit, msg, str1, gr_to_filename(dentry, mnt)); -+ break; -+ case GR_FILENAME_STR: -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ str1 = va_arg(ap, char *); -+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), str1); -+ break; -+ case GR_FILENAME_TWO_INT: -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ num1 = va_arg(ap, int); -+ num2 = va_arg(ap, int); -+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2); -+ break; -+ case GR_FILENAME_TWO_INT_STR: -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ num1 = va_arg(ap, int); -+ num2 = va_arg(ap, int); -+ str1 = va_arg(ap, char *); -+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2, str1); -+ break; -+ case GR_TEXTREL: -+ file = va_arg(ap, struct file *); -+ ulong1 = va_arg(ap, unsigned long); -+ ulong2 = va_arg(ap, unsigned long); -+ gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>", ulong1, ulong2); -+ break; -+ case GR_PTRACE: -+ task = va_arg(ap, struct task_struct *); -+ gr_log_middle_varargs(audit, msg, task->exec_file ? gr_to_filename(task->exec_file->f_path.dentry, task->exec_file->f_path.mnt) : "(none)", task->comm, task->pid); -+ break; -+ case GR_RESOURCE: -+ task = va_arg(ap, struct task_struct *); -+ cred = __task_cred(task); -+ pcred = __task_cred(task->real_parent); -+ ulong1 = va_arg(ap, unsigned long); -+ str1 = va_arg(ap, char *); -+ ulong2 = va_arg(ap, unsigned long); -+ gr_log_middle_varargs(audit, msg, ulong1, str1, ulong2, gr_task_fullpath(task), task->comm, task->pid, cred->uid, cred->euid, cred->gid, cred->egid, gr_parent_task_fullpath(task), task->real_parent->comm, task->real_parent->pid, pcred->uid, pcred->euid, pcred->gid, pcred->egid); -+ break; -+ case GR_CAP: -+ task = va_arg(ap, struct task_struct *); -+ cred = __task_cred(task); -+ pcred = __task_cred(task->real_parent); -+ str1 = va_arg(ap, char *); -+ gr_log_middle_varargs(audit, msg, str1, gr_task_fullpath(task), task->comm, task->pid, cred->uid, cred->euid, cred->gid, cred->egid, gr_parent_task_fullpath(task), task->real_parent->comm, task->real_parent->pid, pcred->uid, pcred->euid, pcred->gid, pcred->egid); -+ break; -+ case GR_SIG: -+ str1 = va_arg(ap, char *); -+ voidptr = va_arg(ap, void *); -+ gr_log_middle_varargs(audit, msg, str1, voidptr); -+ break; -+ case GR_SIG2: -+ task = va_arg(ap, struct task_struct *); -+ cred = __task_cred(task); -+ pcred = __task_cred(task->real_parent); -+ num1 = va_arg(ap, int); -+ gr_log_middle_varargs(audit, msg, num1, gr_task_fullpath0(task), task->comm, task->pid, cred->uid, cred->euid, cred->gid, cred->egid, gr_parent_task_fullpath0(task), task->real_parent->comm, task->real_parent->pid, pcred->uid, pcred->euid, pcred->gid, pcred->egid); -+ break; -+ case GR_CRASH1: -+ task = va_arg(ap, struct task_struct *); -+ cred = __task_cred(task); -+ pcred = __task_cred(task->real_parent); -+ ulong1 = va_arg(ap, unsigned long); -+ gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task->pid, cred->uid, cred->euid, cred->gid, cred->egid, gr_parent_task_fullpath(task), task->real_parent->comm, task->real_parent->pid, pcred->uid, pcred->euid, pcred->gid, pcred->egid, cred->uid, ulong1); -+ break; -+ case GR_CRASH2: -+ task = va_arg(ap, struct task_struct *); -+ cred = __task_cred(task); -+ pcred = __task_cred(task->real_parent); -+ ulong1 = va_arg(ap, unsigned long); -+ gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task->pid, cred->uid, cred->euid, cred->gid, cred->egid, gr_parent_task_fullpath(task), task->real_parent->comm, task->real_parent->pid, pcred->uid, pcred->euid, pcred->gid, pcred->egid, ulong1); -+ break; -+ case GR_RWXMAP: -+ file = va_arg(ap, struct file *); -+ gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>"); -+ break; -+ case GR_PSACCT: -+ { -+ unsigned int wday, cday; -+ __u8 whr, chr; -+ __u8 wmin, cmin; -+ __u8 wsec, csec; -+ char cur_tty[64] = { 0 }; -+ char parent_tty[64] = { 0 }; -+ -+ task = va_arg(ap, struct task_struct *); -+ wday = va_arg(ap, unsigned int); -+ cday = va_arg(ap, unsigned int); -+ whr = va_arg(ap, int); -+ chr = va_arg(ap, int); -+ wmin = va_arg(ap, int); -+ cmin = va_arg(ap, int); -+ wsec = va_arg(ap, int); -+ csec = va_arg(ap, int); -+ ulong1 = va_arg(ap, unsigned long); -+ cred = __task_cred(task); -+ pcred = __task_cred(task->real_parent); -+ -+ gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task->pid, &task->signal->curr_ip, tty_name(task->signal->tty, cur_tty), cred->uid, cred->euid, cred->gid, cred->egid, wday, whr, wmin, wsec, cday, chr, cmin, csec, (task->flags & PF_SIGNALED) ? "killed by signal" : "exited", ulong1, gr_parent_task_fullpath(task), task->real_parent->comm, task->real_parent->pid, &task->real_parent->signal->curr_ip, tty_name(task->real_parent->signal->tty, parent_tty), pcred->uid, pcred->euid, pcred->gid, pcred->egid); -+ } -+ break; -+ default: -+ gr_log_middle(audit, msg, ap); -+ } -+ va_end(ap); -+ // these don't need DEFAULTSECARGS printed on the end -+ if (argtypes == GR_CRASH1 || argtypes == GR_CRASH2) -+ gr_log_end(audit, 0); -+ else -+ gr_log_end(audit, 1); -+ END_LOCKS(audit); -+} -diff --git a/grsecurity/grsec_mem.c b/grsecurity/grsec_mem.c -new file mode 100644 -index 0000000..f536303 ---- /dev/null -+++ b/grsecurity/grsec_mem.c -@@ -0,0 +1,40 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/mm.h> -+#include <linux/mman.h> -+#include <linux/grinternal.h> -+ -+void -+gr_handle_ioperm(void) -+{ -+ gr_log_noargs(GR_DONT_AUDIT, GR_IOPERM_MSG); -+ return; -+} -+ -+void -+gr_handle_iopl(void) -+{ -+ gr_log_noargs(GR_DONT_AUDIT, GR_IOPL_MSG); -+ return; -+} -+ -+void -+gr_handle_mem_readwrite(u64 from, u64 to) -+{ -+ gr_log_two_u64(GR_DONT_AUDIT, GR_MEM_READWRITE_MSG, from, to); -+ return; -+} -+ -+void -+gr_handle_vm86(void) -+{ -+ gr_log_noargs(GR_DONT_AUDIT, GR_VM86_MSG); -+ return; -+} -+ -+void -+gr_log_badprocpid(const char *entry) -+{ -+ gr_log_str(GR_DONT_AUDIT, GR_BADPROCPID_MSG, entry); -+ return; -+} -diff --git a/grsecurity/grsec_mount.c b/grsecurity/grsec_mount.c -new file mode 100644 -index 0000000..2131422 ---- /dev/null -+++ b/grsecurity/grsec_mount.c -@@ -0,0 +1,62 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/mount.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+void -+gr_log_remount(const char *devname, const int retval) -+{ -+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT -+ if (grsec_enable_mount && (retval >= 0)) -+ gr_log_str(GR_DO_AUDIT, GR_REMOUNT_AUDIT_MSG, devname ? devname : "none"); -+#endif -+ return; -+} -+ -+void -+gr_log_unmount(const char *devname, const int retval) -+{ -+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT -+ if (grsec_enable_mount && (retval >= 0)) -+ gr_log_str(GR_DO_AUDIT, GR_UNMOUNT_AUDIT_MSG, devname ? devname : "none"); -+#endif -+ return; -+} -+ -+void -+gr_log_mount(const char *from, const char *to, const int retval) -+{ -+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT -+ if (grsec_enable_mount && (retval >= 0)) -+ gr_log_str_str(GR_DO_AUDIT, GR_MOUNT_AUDIT_MSG, from ? from : "none", to); -+#endif -+ return; -+} -+ -+int -+gr_handle_rofs_mount(struct dentry *dentry, struct vfsmount *mnt, int mnt_flags) -+{ -+#ifdef CONFIG_GRKERNSEC_ROFS -+ if (grsec_enable_rofs && !(mnt_flags & MNT_READONLY)) { -+ gr_log_fs_generic(GR_DO_AUDIT, GR_ROFS_MOUNT_MSG, dentry, mnt); -+ return -EPERM; -+ } else -+ return 0; -+#endif -+ return 0; -+} -+ -+int -+gr_handle_rofs_blockwrite(struct dentry *dentry, struct vfsmount *mnt, int acc_mode) -+{ -+#ifdef CONFIG_GRKERNSEC_ROFS -+ if (grsec_enable_rofs && (acc_mode & MAY_WRITE) && -+ dentry->d_inode && S_ISBLK(dentry->d_inode->i_mode)) { -+ gr_log_fs_generic(GR_DO_AUDIT, GR_ROFS_BLOCKWRITE_MSG, dentry, mnt); -+ return -EPERM; -+ } else -+ return 0; -+#endif -+ return 0; -+} -diff --git a/grsecurity/grsec_pax.c b/grsecurity/grsec_pax.c -new file mode 100644 -index 0000000..a3b12a0 ---- /dev/null -+++ b/grsecurity/grsec_pax.c -@@ -0,0 +1,36 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/mm.h> -+#include <linux/file.h> -+#include <linux/grinternal.h> -+#include <linux/grsecurity.h> -+ -+void -+gr_log_textrel(struct vm_area_struct * vma) -+{ -+#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL -+ if (grsec_enable_audit_textrel) -+ gr_log_textrel_ulong_ulong(GR_DO_AUDIT, GR_TEXTREL_AUDIT_MSG, vma->vm_file, vma->vm_start, vma->vm_pgoff); -+#endif -+ return; -+} -+ -+void -+gr_log_rwxmmap(struct file *file) -+{ -+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG -+ if (grsec_enable_log_rwxmaps) -+ gr_log_rwxmap(GR_DONT_AUDIT, GR_RWXMMAP_MSG, file); -+#endif -+ return; -+} -+ -+void -+gr_log_rwxmprotect(struct file *file) -+{ -+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG -+ if (grsec_enable_log_rwxmaps) -+ gr_log_rwxmap(GR_DONT_AUDIT, GR_RWXMPROTECT_MSG, file); -+#endif -+ return; -+} -diff --git a/grsecurity/grsec_ptrace.c b/grsecurity/grsec_ptrace.c -new file mode 100644 -index 0000000..f7f29aa ---- /dev/null -+++ b/grsecurity/grsec_ptrace.c -@@ -0,0 +1,30 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/grinternal.h> -+#include <linux/security.h> -+ -+void -+gr_audit_ptrace(struct task_struct *task) -+{ -+#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE -+ if (grsec_enable_audit_ptrace) -+ gr_log_ptrace(GR_DO_AUDIT, GR_PTRACE_AUDIT_MSG, task); -+#endif -+ return; -+} -+ -+int -+gr_ptrace_readexec(struct file *file, int unsafe_flags) -+{ -+#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC -+ const struct dentry *dentry = file->f_path.dentry; -+ const struct vfsmount *mnt = file->f_path.mnt; -+ -+ if (grsec_enable_ptrace_readexec && (unsafe_flags & LSM_UNSAFE_PTRACE) && -+ (inode_permission(dentry->d_inode, MAY_READ) || !gr_acl_handle_open(dentry, mnt, MAY_READ))) { -+ gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_READEXEC_MSG, dentry, mnt); -+ return -EACCES; -+ } -+#endif -+ return 0; -+} -diff --git a/grsecurity/grsec_sig.c b/grsecurity/grsec_sig.c -new file mode 100644 -index 0000000..7a5b2de ---- /dev/null -+++ b/grsecurity/grsec_sig.c -@@ -0,0 +1,207 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/delay.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+#include <linux/hardirq.h> -+ -+char *signames[] = { -+ [SIGSEGV] = "Segmentation fault", -+ [SIGILL] = "Illegal instruction", -+ [SIGABRT] = "Abort", -+ [SIGBUS] = "Invalid alignment/Bus error" -+}; -+ -+void -+gr_log_signal(const int sig, const void *addr, const struct task_struct *t) -+{ -+#ifdef CONFIG_GRKERNSEC_SIGNAL -+ if (grsec_enable_signal && ((sig == SIGSEGV) || (sig == SIGILL) || -+ (sig == SIGABRT) || (sig == SIGBUS))) { -+ if (t->pid == current->pid) { -+ gr_log_sig_addr(GR_DONT_AUDIT_GOOD, GR_UNISIGLOG_MSG, signames[sig], addr); -+ } else { -+ gr_log_sig_task(GR_DONT_AUDIT_GOOD, GR_DUALSIGLOG_MSG, t, sig); -+ } -+ } -+#endif -+ return; -+} -+ -+int -+gr_handle_signal(const struct task_struct *p, const int sig) -+{ -+#ifdef CONFIG_GRKERNSEC -+ /* ignore the 0 signal for protected task checks */ -+ if (current->pid > 1 && sig && gr_check_protected_task(p)) { -+ gr_log_sig_task(GR_DONT_AUDIT, GR_SIG_ACL_MSG, p, sig); -+ return -EPERM; -+ } else if (gr_pid_is_chrooted((struct task_struct *)p)) { -+ return -EPERM; -+ } -+#endif -+ return 0; -+} -+ -+#ifdef CONFIG_GRKERNSEC -+extern int specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t); -+ -+int gr_fake_force_sig(int sig, struct task_struct *t) -+{ -+ unsigned long int flags; -+ int ret, blocked, ignored; -+ struct k_sigaction *action; -+ -+ spin_lock_irqsave(&t->sighand->siglock, flags); -+ action = &t->sighand->action[sig-1]; -+ ignored = action->sa.sa_handler == SIG_IGN; -+ blocked = sigismember(&t->blocked, sig); -+ if (blocked || ignored) { -+ action->sa.sa_handler = SIG_DFL; -+ if (blocked) { -+ sigdelset(&t->blocked, sig); -+ recalc_sigpending_and_wake(t); -+ } -+ } -+ if (action->sa.sa_handler == SIG_DFL) -+ t->signal->flags &= ~SIGNAL_UNKILLABLE; -+ ret = specific_send_sig_info(sig, SEND_SIG_PRIV, t); -+ -+ spin_unlock_irqrestore(&t->sighand->siglock, flags); -+ -+ return ret; -+} -+#endif -+ -+#ifdef CONFIG_GRKERNSEC_BRUTE -+#define GR_USER_BAN_TIME (15 * 60) -+ -+static int __get_dumpable(unsigned long mm_flags) -+{ -+ int ret; -+ -+ ret = mm_flags & MMF_DUMPABLE_MASK; -+ return (ret >= 2) ? 2 : ret; -+} -+#endif -+ -+void gr_handle_brute_attach(struct task_struct *p, unsigned long mm_flags) -+{ -+#ifdef CONFIG_GRKERNSEC_BRUTE -+ uid_t uid = 0; -+ -+ if (!grsec_enable_brute) -+ return; -+ -+ rcu_read_lock(); -+ read_lock(&tasklist_lock); -+ read_lock(&grsec_exec_file_lock); -+ if (p->real_parent && p->real_parent->exec_file == p->exec_file) -+ p->real_parent->brute = 1; -+ else { -+ const struct cred *cred = __task_cred(p), *cred2; -+ struct task_struct *tsk, *tsk2; -+ -+ if (!__get_dumpable(mm_flags) && cred->uid) { -+ struct user_struct *user; -+ -+ uid = cred->uid; -+ -+ /* this is put upon execution past expiration */ -+ user = find_user(uid); -+ if (user == NULL) -+ goto unlock; -+ user->banned = 1; -+ user->ban_expires = get_seconds() + GR_USER_BAN_TIME; -+ if (user->ban_expires == ~0UL) -+ user->ban_expires--; -+ -+ do_each_thread(tsk2, tsk) { -+ cred2 = __task_cred(tsk); -+ if (tsk != p && cred2->uid == uid) -+ gr_fake_force_sig(SIGKILL, tsk); -+ } while_each_thread(tsk2, tsk); -+ } -+ } -+unlock: -+ read_unlock(&grsec_exec_file_lock); -+ read_unlock(&tasklist_lock); -+ rcu_read_unlock(); -+ -+ if (uid) -+ printk(KERN_ALERT "grsec: bruteforce prevention initiated against uid %u, banning for %d minutes\n", uid, GR_USER_BAN_TIME / 60); -+ -+#endif -+ return; -+} -+ -+void gr_handle_brute_check(void) -+{ -+#ifdef CONFIG_GRKERNSEC_BRUTE -+ if (current->brute) -+ msleep(30 * 1000); -+#endif -+ return; -+} -+ -+void gr_handle_kernel_exploit(void) -+{ -+#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT -+ const struct cred *cred; -+ struct task_struct *tsk, *tsk2; -+ struct user_struct *user; -+ uid_t uid; -+ -+ if (in_irq() || in_serving_softirq() || in_nmi()) -+ panic("grsec: halting the system due to suspicious kernel crash caused in interrupt context"); -+ -+ uid = current_uid(); -+ -+ if (uid == 0) -+ panic("grsec: halting the system due to suspicious kernel crash caused by root"); -+ else { -+ /* kill all the processes of this user, hold a reference -+ to their creds struct, and prevent them from creating -+ another process until system reset -+ */ -+ printk(KERN_ALERT "grsec: banning user with uid %u until system restart for suspicious kernel crash\n", uid); -+ /* we intentionally leak this ref */ -+ user = get_uid(current->cred->user); -+ if (user) { -+ user->banned = 1; -+ user->ban_expires = ~0UL; -+ } -+ -+ read_lock(&tasklist_lock); -+ do_each_thread(tsk2, tsk) { -+ cred = __task_cred(tsk); -+ if (cred->uid == uid) -+ gr_fake_force_sig(SIGKILL, tsk); -+ } while_each_thread(tsk2, tsk); -+ read_unlock(&tasklist_lock); -+ } -+#endif -+} -+ -+int __gr_process_user_ban(struct user_struct *user) -+{ -+#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT) || defined(CONFIG_GRKERNSEC_BRUTE) -+ if (unlikely(user->banned)) { -+ if (user->ban_expires != ~0UL && time_after_eq(get_seconds(), user->ban_expires)) { -+ user->banned = 0; -+ user->ban_expires = 0; -+ free_uid(user); -+ } else -+ return -EPERM; -+ } -+#endif -+ return 0; -+} -+ -+int gr_process_user_ban(void) -+{ -+#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT) || defined(CONFIG_GRKERNSEC_BRUTE) -+ return __gr_process_user_ban(current->cred->user); -+#endif -+ return 0; -+} -diff --git a/grsecurity/grsec_sock.c b/grsecurity/grsec_sock.c -new file mode 100644 -index 0000000..4030d57 ---- /dev/null -+++ b/grsecurity/grsec_sock.c -@@ -0,0 +1,244 @@ -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/sched.h> -+#include <linux/file.h> -+#include <linux/net.h> -+#include <linux/in.h> -+#include <linux/ip.h> -+#include <net/sock.h> -+#include <net/inet_sock.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+#include <linux/gracl.h> -+ -+extern int gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb); -+extern int gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr); -+ -+EXPORT_SYMBOL(gr_search_udp_recvmsg); -+EXPORT_SYMBOL(gr_search_udp_sendmsg); -+ -+#ifdef CONFIG_UNIX_MODULE -+EXPORT_SYMBOL(gr_acl_handle_unix); -+EXPORT_SYMBOL(gr_acl_handle_mknod); -+EXPORT_SYMBOL(gr_handle_chroot_unix); -+EXPORT_SYMBOL(gr_handle_create); -+#endif -+ -+#ifdef CONFIG_GRKERNSEC -+#define gr_conn_table_size 32749 -+struct conn_table_entry { -+ struct conn_table_entry *next; -+ struct signal_struct *sig; -+}; -+ -+struct conn_table_entry *gr_conn_table[gr_conn_table_size]; -+DEFINE_SPINLOCK(gr_conn_table_lock); -+ -+extern const char * gr_socktype_to_name(unsigned char type); -+extern const char * gr_proto_to_name(unsigned char proto); -+extern const char * gr_sockfamily_to_name(unsigned char family); -+ -+static __inline__ int -+conn_hash(__u32 saddr, __u32 daddr, __u16 sport, __u16 dport, unsigned int size) -+{ -+ return ((daddr + saddr + (sport << 8) + (dport << 16)) % size); -+} -+ -+static __inline__ int -+conn_match(const struct signal_struct *sig, __u32 saddr, __u32 daddr, -+ __u16 sport, __u16 dport) -+{ -+ if (unlikely(sig->gr_saddr == saddr && sig->gr_daddr == daddr && -+ sig->gr_sport == sport && sig->gr_dport == dport)) -+ return 1; -+ else -+ return 0; -+} -+ -+static void gr_add_to_task_ip_table_nolock(struct signal_struct *sig, struct conn_table_entry *newent) -+{ -+ struct conn_table_entry **match; -+ unsigned int index; -+ -+ index = conn_hash(sig->gr_saddr, sig->gr_daddr, -+ sig->gr_sport, sig->gr_dport, -+ gr_conn_table_size); -+ -+ newent->sig = sig; -+ -+ match = &gr_conn_table[index]; -+ newent->next = *match; -+ *match = newent; -+ -+ return; -+} -+ -+static void gr_del_task_from_ip_table_nolock(struct signal_struct *sig) -+{ -+ struct conn_table_entry *match, *last = NULL; -+ unsigned int index; -+ -+ index = conn_hash(sig->gr_saddr, sig->gr_daddr, -+ sig->gr_sport, sig->gr_dport, -+ gr_conn_table_size); -+ -+ match = gr_conn_table[index]; -+ while (match && !conn_match(match->sig, -+ sig->gr_saddr, sig->gr_daddr, sig->gr_sport, -+ sig->gr_dport)) { -+ last = match; -+ match = match->next; -+ } -+ -+ if (match) { -+ if (last) -+ last->next = match->next; -+ else -+ gr_conn_table[index] = NULL; -+ kfree(match); -+ } -+ -+ return; -+} -+ -+static struct signal_struct * gr_lookup_task_ip_table(__u32 saddr, __u32 daddr, -+ __u16 sport, __u16 dport) -+{ -+ struct conn_table_entry *match; -+ unsigned int index; -+ -+ index = conn_hash(saddr, daddr, sport, dport, gr_conn_table_size); -+ -+ match = gr_conn_table[index]; -+ while (match && !conn_match(match->sig, saddr, daddr, sport, dport)) -+ match = match->next; -+ -+ if (match) -+ return match->sig; -+ else -+ return NULL; -+} -+ -+#endif -+ -+void gr_update_task_in_ip_table(struct task_struct *task, const struct inet_sock *inet) -+{ -+#ifdef CONFIG_GRKERNSEC -+ struct signal_struct *sig = task->signal; -+ struct conn_table_entry *newent; -+ -+ newent = kmalloc(sizeof(struct conn_table_entry), GFP_ATOMIC); -+ if (newent == NULL) -+ return; -+ /* no bh lock needed since we are called with bh disabled */ -+ spin_lock(&gr_conn_table_lock); -+ gr_del_task_from_ip_table_nolock(sig); -+ sig->gr_saddr = inet->inet_rcv_saddr; -+ sig->gr_daddr = inet->inet_daddr; -+ sig->gr_sport = inet->inet_sport; -+ sig->gr_dport = inet->inet_dport; -+ gr_add_to_task_ip_table_nolock(sig, newent); -+ spin_unlock(&gr_conn_table_lock); -+#endif -+ return; -+} -+ -+void gr_del_task_from_ip_table(struct task_struct *task) -+{ -+#ifdef CONFIG_GRKERNSEC -+ spin_lock_bh(&gr_conn_table_lock); -+ gr_del_task_from_ip_table_nolock(task->signal); -+ spin_unlock_bh(&gr_conn_table_lock); -+#endif -+ return; -+} -+ -+void -+gr_attach_curr_ip(const struct sock *sk) -+{ -+#ifdef CONFIG_GRKERNSEC -+ struct signal_struct *p, *set; -+ const struct inet_sock *inet = inet_sk(sk); -+ -+ if (unlikely(sk->sk_protocol != IPPROTO_TCP)) -+ return; -+ -+ set = current->signal; -+ -+ spin_lock_bh(&gr_conn_table_lock); -+ p = gr_lookup_task_ip_table(inet->inet_daddr, inet->inet_rcv_saddr, -+ inet->inet_dport, inet->inet_sport); -+ if (unlikely(p != NULL)) { -+ set->curr_ip = p->curr_ip; -+ set->used_accept = 1; -+ gr_del_task_from_ip_table_nolock(p); -+ spin_unlock_bh(&gr_conn_table_lock); -+ return; -+ } -+ spin_unlock_bh(&gr_conn_table_lock); -+ -+ set->curr_ip = inet->inet_daddr; -+ set->used_accept = 1; -+#endif -+ return; -+} -+ -+int -+gr_handle_sock_all(const int family, const int type, const int protocol) -+{ -+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL -+ if (grsec_enable_socket_all && in_group_p(grsec_socket_all_gid) && -+ (family != AF_UNIX)) { -+ if (family == AF_INET) -+ gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, gr_sockfamily_to_name(family), gr_socktype_to_name(type), gr_proto_to_name(protocol)); -+ else -+ gr_log_str2_int(GR_DONT_AUDIT, GR_SOCK_NOINET_MSG, gr_sockfamily_to_name(family), gr_socktype_to_name(type), protocol); -+ return -EACCES; -+ } -+#endif -+ return 0; -+} -+ -+int -+gr_handle_sock_server(const struct sockaddr *sck) -+{ -+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER -+ if (grsec_enable_socket_server && -+ in_group_p(grsec_socket_server_gid) && -+ sck && (sck->sa_family != AF_UNIX) && -+ (sck->sa_family != AF_LOCAL)) { -+ gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG); -+ return -EACCES; -+ } -+#endif -+ return 0; -+} -+ -+int -+gr_handle_sock_server_other(const struct sock *sck) -+{ -+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER -+ if (grsec_enable_socket_server && -+ in_group_p(grsec_socket_server_gid) && -+ sck && (sck->sk_family != AF_UNIX) && -+ (sck->sk_family != AF_LOCAL)) { -+ gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG); -+ return -EACCES; -+ } -+#endif -+ return 0; -+} -+ -+int -+gr_handle_sock_client(const struct sockaddr *sck) -+{ -+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT -+ if (grsec_enable_socket_client && in_group_p(grsec_socket_client_gid) && -+ sck && (sck->sa_family != AF_UNIX) && -+ (sck->sa_family != AF_LOCAL)) { -+ gr_log_noargs(GR_DONT_AUDIT, GR_CONNECT_MSG); -+ return -EACCES; -+ } -+#endif -+ return 0; -+} -diff --git a/grsecurity/grsec_sysctl.c b/grsecurity/grsec_sysctl.c -new file mode 100644 -index 0000000..8316f6f ---- /dev/null -+++ b/grsecurity/grsec_sysctl.c -@@ -0,0 +1,453 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/sysctl.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+int -+gr_handle_sysctl_mod(const char *dirname, const char *name, const int op) -+{ -+#ifdef CONFIG_GRKERNSEC_SYSCTL -+ if (dirname == NULL || name == NULL) -+ return 0; -+ if (!strcmp(dirname, "grsecurity") && grsec_lock && (op & MAY_WRITE)) { -+ gr_log_str(GR_DONT_AUDIT, GR_SYSCTL_MSG, name); -+ return -EACCES; -+ } -+#endif -+ return 0; -+} -+ -+#ifdef CONFIG_GRKERNSEC_ROFS -+static int __maybe_unused one = 1; -+#endif -+ -+#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_ROFS) -+struct ctl_table grsecurity_table[] = { -+#ifdef CONFIG_GRKERNSEC_SYSCTL -+#ifdef CONFIG_GRKERNSEC_SYSCTL_DISTRO -+#ifdef CONFIG_GRKERNSEC_IO -+ { -+ .procname = "disable_priv_io", -+ .data = &grsec_disable_privio, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#endif -+#ifdef CONFIG_GRKERNSEC_LINK -+ { -+ .procname = "linking_restrictions", -+ .data = &grsec_enable_link, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_BRUTE -+ { -+ .procname = "deter_bruteforce", -+ .data = &grsec_enable_brute, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_FIFO -+ { -+ .procname = "fifo_restrictions", -+ .data = &grsec_enable_fifo, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC -+ { -+ .procname = "ptrace_readexec", -+ .data = &grsec_enable_ptrace_readexec, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_SETXID -+ { -+ .procname = "consistent_setxid", -+ .data = &grsec_enable_setxid, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+ { -+ .procname = "ip_blackhole", -+ .data = &grsec_enable_blackhole, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+ { -+ .procname = "lastack_retries", -+ .data = &grsec_lastack_retries, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_EXECLOG -+ { -+ .procname = "exec_logging", -+ .data = &grsec_enable_execlog, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG -+ { -+ .procname = "rwxmap_logging", -+ .data = &grsec_enable_log_rwxmaps, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_SIGNAL -+ { -+ .procname = "signal_logging", -+ .data = &grsec_enable_signal, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_FORKFAIL -+ { -+ .procname = "forkfail_logging", -+ .data = &grsec_enable_forkfail, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_TIME -+ { -+ .procname = "timechange_logging", -+ .data = &grsec_enable_time, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT -+ { -+ .procname = "chroot_deny_shmat", -+ .data = &grsec_enable_chroot_shmat, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX -+ { -+ .procname = "chroot_deny_unix", -+ .data = &grsec_enable_chroot_unix, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT -+ { -+ .procname = "chroot_deny_mount", -+ .data = &grsec_enable_chroot_mount, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR -+ { -+ .procname = "chroot_deny_fchdir", -+ .data = &grsec_enable_chroot_fchdir, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE -+ { -+ .procname = "chroot_deny_chroot", -+ .data = &grsec_enable_chroot_double, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT -+ { -+ .procname = "chroot_deny_pivot", -+ .data = &grsec_enable_chroot_pivot, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR -+ { -+ .procname = "chroot_enforce_chdir", -+ .data = &grsec_enable_chroot_chdir, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD -+ { -+ .procname = "chroot_deny_chmod", -+ .data = &grsec_enable_chroot_chmod, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD -+ { -+ .procname = "chroot_deny_mknod", -+ .data = &grsec_enable_chroot_mknod, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE -+ { -+ .procname = "chroot_restrict_nice", -+ .data = &grsec_enable_chroot_nice, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG -+ { -+ .procname = "chroot_execlog", -+ .data = &grsec_enable_chroot_execlog, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS -+ { -+ .procname = "chroot_caps", -+ .data = &grsec_enable_chroot_caps, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL -+ { -+ .procname = "chroot_deny_sysctl", -+ .data = &grsec_enable_chroot_sysctl, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_TPE -+ { -+ .procname = "tpe", -+ .data = &grsec_enable_tpe, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+ { -+ .procname = "tpe_gid", -+ .data = &grsec_tpe_gid, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_TPE_INVERT -+ { -+ .procname = "tpe_invert", -+ .data = &grsec_enable_tpe_invert, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_TPE_ALL -+ { -+ .procname = "tpe_restrict_all", -+ .data = &grsec_enable_tpe_all, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL -+ { -+ .procname = "socket_all", -+ .data = &grsec_enable_socket_all, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+ { -+ .procname = "socket_all_gid", -+ .data = &grsec_socket_all_gid, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT -+ { -+ .procname = "socket_client", -+ .data = &grsec_enable_socket_client, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+ { -+ .procname = "socket_client_gid", -+ .data = &grsec_socket_client_gid, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER -+ { -+ .procname = "socket_server", -+ .data = &grsec_enable_socket_server, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+ { -+ .procname = "socket_server_gid", -+ .data = &grsec_socket_server_gid, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP -+ { -+ .procname = "audit_group", -+ .data = &grsec_enable_group, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+ { -+ .procname = "audit_gid", -+ .data = &grsec_audit_gid, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR -+ { -+ .procname = "audit_chdir", -+ .data = &grsec_enable_chdir, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT -+ { -+ .procname = "audit_mount", -+ .data = &grsec_enable_mount, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL -+ { -+ .procname = "audit_textrel", -+ .data = &grsec_enable_audit_textrel, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_DMESG -+ { -+ .procname = "dmesg", -+ .data = &grsec_enable_dmesg, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK -+ { -+ .procname = "chroot_findtask", -+ .data = &grsec_enable_chroot_findtask, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_RESLOG -+ { -+ .procname = "resource_logging", -+ .data = &grsec_resource_logging, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE -+ { -+ .procname = "audit_ptrace", -+ .data = &grsec_enable_audit_ptrace, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE -+ { -+ .procname = "harden_ptrace", -+ .data = &grsec_enable_harden_ptrace, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+ { -+ .procname = "grsec_lock", -+ .data = &grsec_lock, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_ROFS -+ { -+ .procname = "romount_protect", -+ .data = &grsec_enable_rofs, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec_minmax, -+ .extra1 = &one, -+ .extra2 = &one, -+ }, -+#endif -+ { } -+}; -+#endif -diff --git a/grsecurity/grsec_time.c b/grsecurity/grsec_time.c -new file mode 100644 -index 0000000..0dc13c3 ---- /dev/null -+++ b/grsecurity/grsec_time.c -@@ -0,0 +1,16 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/grinternal.h> -+#include <linux/module.h> -+ -+void -+gr_log_timechange(void) -+{ -+#ifdef CONFIG_GRKERNSEC_TIME -+ if (grsec_enable_time) -+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_TIME_MSG); -+#endif -+ return; -+} -+ -+EXPORT_SYMBOL(gr_log_timechange); -diff --git a/grsecurity/grsec_tpe.c b/grsecurity/grsec_tpe.c -new file mode 100644 -index 0000000..07e0dc0 ---- /dev/null -+++ b/grsecurity/grsec_tpe.c -@@ -0,0 +1,73 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/file.h> -+#include <linux/fs.h> -+#include <linux/grinternal.h> -+ -+extern int gr_acl_tpe_check(void); -+ -+int -+gr_tpe_allow(const struct file *file) -+{ -+#ifdef CONFIG_GRKERNSEC -+ struct inode *inode = file->f_path.dentry->d_parent->d_inode; -+ const struct cred *cred = current_cred(); -+ char *msg = NULL; -+ char *msg2 = NULL; -+ -+ // never restrict root -+ if (!cred->uid) -+ return 1; -+ -+ if (grsec_enable_tpe) { -+#ifdef CONFIG_GRKERNSEC_TPE_INVERT -+ if (grsec_enable_tpe_invert && !in_group_p(grsec_tpe_gid)) -+ msg = "not being in trusted group"; -+ else if (!grsec_enable_tpe_invert && in_group_p(grsec_tpe_gid)) -+ msg = "being in untrusted group"; -+#else -+ if (in_group_p(grsec_tpe_gid)) -+ msg = "being in untrusted group"; -+#endif -+ } -+ if (!msg && gr_acl_tpe_check()) -+ msg = "being in untrusted role"; -+ -+ // not in any affected group/role -+ if (!msg) -+ goto next_check; -+ -+ if (inode->i_uid) -+ msg2 = "file in non-root-owned directory"; -+ else if (inode->i_mode & S_IWOTH) -+ msg2 = "file in world-writable directory"; -+ else if (inode->i_mode & S_IWGRP) -+ msg2 = "file in group-writable directory"; -+ -+ if (msg && msg2) { -+ char fullmsg[70] = {0}; -+ snprintf(fullmsg, sizeof(fullmsg)-1, "%s and %s", msg, msg2); -+ gr_log_str_fs(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, fullmsg, file->f_path.dentry, file->f_path.mnt); -+ return 0; -+ } -+ msg = NULL; -+next_check: -+#ifdef CONFIG_GRKERNSEC_TPE_ALL -+ if (!grsec_enable_tpe || !grsec_enable_tpe_all) -+ return 1; -+ -+ if (inode->i_uid && (inode->i_uid != cred->uid)) -+ msg = "directory not owned by user"; -+ else if (inode->i_mode & S_IWOTH) -+ msg = "file in world-writable directory"; -+ else if (inode->i_mode & S_IWGRP) -+ msg = "file in group-writable directory"; -+ -+ if (msg) { -+ gr_log_str_fs(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, msg, file->f_path.dentry, file->f_path.mnt); -+ return 0; -+ } -+#endif -+#endif -+ return 1; -+} -diff --git a/grsecurity/grsum.c b/grsecurity/grsum.c -new file mode 100644 -index 0000000..9f7b1ac ---- /dev/null -+++ b/grsecurity/grsum.c -@@ -0,0 +1,61 @@ -+#include <linux/err.h> -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/mm.h> -+#include <linux/scatterlist.h> -+#include <linux/crypto.h> -+#include <linux/gracl.h> -+ -+ -+#if !defined(CONFIG_CRYPTO) || defined(CONFIG_CRYPTO_MODULE) || !defined(CONFIG_CRYPTO_SHA256) || defined(CONFIG_CRYPTO_SHA256_MODULE) -+#error "crypto and sha256 must be built into the kernel" -+#endif -+ -+int -+chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum) -+{ -+ char *p; -+ struct crypto_hash *tfm; -+ struct hash_desc desc; -+ struct scatterlist sg; -+ unsigned char temp_sum[GR_SHA_LEN]; -+ volatile int retval = 0; -+ volatile int dummy = 0; -+ unsigned int i; -+ -+ sg_init_table(&sg, 1); -+ -+ tfm = crypto_alloc_hash("sha256", 0, CRYPTO_ALG_ASYNC); -+ if (IS_ERR(tfm)) { -+ /* should never happen, since sha256 should be built in */ -+ return 1; -+ } -+ -+ desc.tfm = tfm; -+ desc.flags = 0; -+ -+ crypto_hash_init(&desc); -+ -+ p = salt; -+ sg_set_buf(&sg, p, GR_SALT_LEN); -+ crypto_hash_update(&desc, &sg, sg.length); -+ -+ p = entry->pw; -+ sg_set_buf(&sg, p, strlen(p)); -+ -+ crypto_hash_update(&desc, &sg, sg.length); -+ -+ crypto_hash_final(&desc, temp_sum); -+ -+ memset(entry->pw, 0, GR_PW_LEN); -+ -+ for (i = 0; i < GR_SHA_LEN; i++) -+ if (sum[i] != temp_sum[i]) -+ retval = 1; -+ else -+ dummy = 1; // waste a cycle -+ -+ crypto_free_hash(tfm); -+ -+ return retval; -+} -diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h -index f1c8ca6..b5c1cc7 100644 ---- a/include/acpi/acpi_bus.h -+++ b/include/acpi/acpi_bus.h -@@ -107,7 +107,7 @@ struct acpi_device_ops { - acpi_op_bind bind; - acpi_op_unbind unbind; - acpi_op_notify notify; --}; -+} __no_const; - - #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */ - -diff --git a/include/asm-generic/atomic-long.h b/include/asm-generic/atomic-long.h -index b7babf0..71e4e74 100644 ---- a/include/asm-generic/atomic-long.h -+++ b/include/asm-generic/atomic-long.h -@@ -22,6 +22,12 @@ - - typedef atomic64_t atomic_long_t; - -+#ifdef CONFIG_PAX_REFCOUNT -+typedef atomic64_unchecked_t atomic_long_unchecked_t; -+#else -+typedef atomic64_t atomic_long_unchecked_t; -+#endif -+ - #define ATOMIC_LONG_INIT(i) ATOMIC64_INIT(i) - - static inline long atomic_long_read(atomic_long_t *l) -@@ -31,6 +37,15 @@ static inline long atomic_long_read(atomic_long_t *l) - return (long)atomic64_read(v); - } - -+#ifdef CONFIG_PAX_REFCOUNT -+static inline long atomic_long_read_unchecked(atomic_long_unchecked_t *l) -+{ -+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l; -+ -+ return (long)atomic64_read_unchecked(v); -+} -+#endif -+ - static inline void atomic_long_set(atomic_long_t *l, long i) - { - atomic64_t *v = (atomic64_t *)l; -@@ -38,6 +53,15 @@ static inline void atomic_long_set(atomic_long_t *l, long i) - atomic64_set(v, i); - } - -+#ifdef CONFIG_PAX_REFCOUNT -+static inline void atomic_long_set_unchecked(atomic_long_unchecked_t *l, long i) -+{ -+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l; -+ -+ atomic64_set_unchecked(v, i); -+} -+#endif -+ - static inline void atomic_long_inc(atomic_long_t *l) - { - atomic64_t *v = (atomic64_t *)l; -@@ -45,6 +69,15 @@ static inline void atomic_long_inc(atomic_long_t *l) - atomic64_inc(v); - } - -+#ifdef CONFIG_PAX_REFCOUNT -+static inline void atomic_long_inc_unchecked(atomic_long_unchecked_t *l) -+{ -+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l; -+ -+ atomic64_inc_unchecked(v); -+} -+#endif -+ - static inline void atomic_long_dec(atomic_long_t *l) - { - atomic64_t *v = (atomic64_t *)l; -@@ -52,6 +85,15 @@ static inline void atomic_long_dec(atomic_long_t *l) - atomic64_dec(v); - } - -+#ifdef CONFIG_PAX_REFCOUNT -+static inline void atomic_long_dec_unchecked(atomic_long_unchecked_t *l) -+{ -+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l; -+ -+ atomic64_dec_unchecked(v); -+} -+#endif -+ - static inline void atomic_long_add(long i, atomic_long_t *l) - { - atomic64_t *v = (atomic64_t *)l; -@@ -59,6 +101,15 @@ static inline void atomic_long_add(long i, atomic_long_t *l) - atomic64_add(i, v); - } - -+#ifdef CONFIG_PAX_REFCOUNT -+static inline void atomic_long_add_unchecked(long i, atomic_long_unchecked_t *l) -+{ -+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l; -+ -+ atomic64_add_unchecked(i, v); -+} -+#endif -+ - static inline void atomic_long_sub(long i, atomic_long_t *l) - { - atomic64_t *v = (atomic64_t *)l; -@@ -66,6 +117,15 @@ static inline void atomic_long_sub(long i, atomic_long_t *l) - atomic64_sub(i, v); - } - -+#ifdef CONFIG_PAX_REFCOUNT -+static inline void atomic_long_sub_unchecked(long i, atomic_long_unchecked_t *l) -+{ -+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l; -+ -+ atomic64_sub_unchecked(i, v); -+} -+#endif -+ - static inline int atomic_long_sub_and_test(long i, atomic_long_t *l) - { - atomic64_t *v = (atomic64_t *)l; -@@ -115,6 +175,15 @@ static inline long atomic_long_inc_return(atomic_long_t *l) - return (long)atomic64_inc_return(v); - } - -+#ifdef CONFIG_PAX_REFCOUNT -+static inline long atomic_long_inc_return_unchecked(atomic_long_unchecked_t *l) -+{ -+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l; -+ -+ return (long)atomic64_inc_return_unchecked(v); -+} -+#endif -+ - static inline long atomic_long_dec_return(atomic_long_t *l) - { - atomic64_t *v = (atomic64_t *)l; -@@ -140,6 +209,12 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u) - - typedef atomic_t atomic_long_t; - -+#ifdef CONFIG_PAX_REFCOUNT -+typedef atomic_unchecked_t atomic_long_unchecked_t; -+#else -+typedef atomic_t atomic_long_unchecked_t; -+#endif -+ - #define ATOMIC_LONG_INIT(i) ATOMIC_INIT(i) - static inline long atomic_long_read(atomic_long_t *l) - { -@@ -148,6 +223,15 @@ static inline long atomic_long_read(atomic_long_t *l) - return (long)atomic_read(v); - } - -+#ifdef CONFIG_PAX_REFCOUNT -+static inline long atomic_long_read_unchecked(atomic_long_unchecked_t *l) -+{ -+ atomic_unchecked_t *v = (atomic_unchecked_t *)l; -+ -+ return (long)atomic_read_unchecked(v); -+} -+#endif -+ - static inline void atomic_long_set(atomic_long_t *l, long i) - { - atomic_t *v = (atomic_t *)l; -@@ -155,6 +239,15 @@ static inline void atomic_long_set(atomic_long_t *l, long i) - atomic_set(v, i); - } - -+#ifdef CONFIG_PAX_REFCOUNT -+static inline void atomic_long_set_unchecked(atomic_long_unchecked_t *l, long i) -+{ -+ atomic_unchecked_t *v = (atomic_unchecked_t *)l; -+ -+ atomic_set_unchecked(v, i); -+} -+#endif -+ - static inline void atomic_long_inc(atomic_long_t *l) - { - atomic_t *v = (atomic_t *)l; -@@ -162,6 +255,15 @@ static inline void atomic_long_inc(atomic_long_t *l) - atomic_inc(v); - } - -+#ifdef CONFIG_PAX_REFCOUNT -+static inline void atomic_long_inc_unchecked(atomic_long_unchecked_t *l) -+{ -+ atomic_unchecked_t *v = (atomic_unchecked_t *)l; -+ -+ atomic_inc_unchecked(v); -+} -+#endif -+ - static inline void atomic_long_dec(atomic_long_t *l) - { - atomic_t *v = (atomic_t *)l; -@@ -169,6 +271,15 @@ static inline void atomic_long_dec(atomic_long_t *l) - atomic_dec(v); - } - -+#ifdef CONFIG_PAX_REFCOUNT -+static inline void atomic_long_dec_unchecked(atomic_long_unchecked_t *l) -+{ -+ atomic_unchecked_t *v = (atomic_unchecked_t *)l; -+ -+ atomic_dec_unchecked(v); -+} -+#endif -+ - static inline void atomic_long_add(long i, atomic_long_t *l) - { - atomic_t *v = (atomic_t *)l; -@@ -176,6 +287,15 @@ static inline void atomic_long_add(long i, atomic_long_t *l) - atomic_add(i, v); - } - -+#ifdef CONFIG_PAX_REFCOUNT -+static inline void atomic_long_add_unchecked(long i, atomic_long_unchecked_t *l) -+{ -+ atomic_unchecked_t *v = (atomic_unchecked_t *)l; -+ -+ atomic_add_unchecked(i, v); -+} -+#endif -+ - static inline void atomic_long_sub(long i, atomic_long_t *l) - { - atomic_t *v = (atomic_t *)l; -@@ -183,6 +303,15 @@ static inline void atomic_long_sub(long i, atomic_long_t *l) - atomic_sub(i, v); - } - -+#ifdef CONFIG_PAX_REFCOUNT -+static inline void atomic_long_sub_unchecked(long i, atomic_long_unchecked_t *l) -+{ -+ atomic_unchecked_t *v = (atomic_unchecked_t *)l; -+ -+ atomic_sub_unchecked(i, v); -+} -+#endif -+ - static inline int atomic_long_sub_and_test(long i, atomic_long_t *l) - { - atomic_t *v = (atomic_t *)l; -@@ -232,6 +361,15 @@ static inline long atomic_long_inc_return(atomic_long_t *l) - return (long)atomic_inc_return(v); - } - -+#ifdef CONFIG_PAX_REFCOUNT -+static inline long atomic_long_inc_return_unchecked(atomic_long_unchecked_t *l) -+{ -+ atomic_unchecked_t *v = (atomic_unchecked_t *)l; -+ -+ return (long)atomic_inc_return_unchecked(v); -+} -+#endif -+ - static inline long atomic_long_dec_return(atomic_long_t *l) - { - atomic_t *v = (atomic_t *)l; -@@ -255,4 +393,49 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u) - - #endif /* BITS_PER_LONG == 64 */ - -+#ifdef CONFIG_PAX_REFCOUNT -+static inline void pax_refcount_needs_these_functions(void) -+{ -+ atomic_read_unchecked((atomic_unchecked_t *)NULL); -+ atomic_set_unchecked((atomic_unchecked_t *)NULL, 0); -+ atomic_add_unchecked(0, (atomic_unchecked_t *)NULL); -+ atomic_sub_unchecked(0, (atomic_unchecked_t *)NULL); -+ atomic_inc_unchecked((atomic_unchecked_t *)NULL); -+ (void)atomic_inc_and_test_unchecked((atomic_unchecked_t *)NULL); -+ atomic_inc_return_unchecked((atomic_unchecked_t *)NULL); -+ atomic_add_return_unchecked(0, (atomic_unchecked_t *)NULL); -+ atomic_dec_unchecked((atomic_unchecked_t *)NULL); -+ atomic_cmpxchg_unchecked((atomic_unchecked_t *)NULL, 0, 0); -+ (void)atomic_xchg_unchecked((atomic_unchecked_t *)NULL, 0); -+ -+ atomic_long_read_unchecked((atomic_long_unchecked_t *)NULL); -+ atomic_long_set_unchecked((atomic_long_unchecked_t *)NULL, 0); -+ atomic_long_add_unchecked(0, (atomic_long_unchecked_t *)NULL); -+ atomic_long_sub_unchecked(0, (atomic_long_unchecked_t *)NULL); -+ atomic_long_inc_unchecked((atomic_long_unchecked_t *)NULL); -+ atomic_long_inc_return_unchecked((atomic_long_unchecked_t *)NULL); -+ atomic_long_dec_unchecked((atomic_long_unchecked_t *)NULL); -+} -+#else -+#define atomic_read_unchecked(v) atomic_read(v) -+#define atomic_set_unchecked(v, i) atomic_set((v), (i)) -+#define atomic_add_unchecked(i, v) atomic_add((i), (v)) -+#define atomic_sub_unchecked(i, v) atomic_sub((i), (v)) -+#define atomic_inc_unchecked(v) atomic_inc(v) -+#define atomic_inc_and_test_unchecked(v) atomic_inc_and_test(v) -+#define atomic_inc_return_unchecked(v) atomic_inc_return(v) -+#define atomic_add_return_unchecked(i, v) atomic_add_return((i), (v)) -+#define atomic_dec_unchecked(v) atomic_dec(v) -+#define atomic_cmpxchg_unchecked(v, o, n) atomic_cmpxchg((v), (o), (n)) -+#define atomic_xchg_unchecked(v, i) atomic_xchg((v), (i)) -+ -+#define atomic_long_read_unchecked(v) atomic_long_read(v) -+#define atomic_long_set_unchecked(v, i) atomic_long_set((v), (i)) -+#define atomic_long_add_unchecked(i, v) atomic_long_add((i), (v)) -+#define atomic_long_sub_unchecked(i, v) atomic_long_sub((i), (v)) -+#define atomic_long_inc_unchecked(v) atomic_long_inc(v) -+#define atomic_long_inc_return_unchecked(v) atomic_long_inc_return(v) -+#define atomic_long_dec_unchecked(v) atomic_long_dec(v) -+#endif -+ - #endif /* _ASM_GENERIC_ATOMIC_LONG_H */ -diff --git a/include/asm-generic/atomic64.h b/include/asm-generic/atomic64.h -index b18ce4f..2ee2843 100644 ---- a/include/asm-generic/atomic64.h -+++ b/include/asm-generic/atomic64.h -@@ -16,6 +16,8 @@ typedef struct { - long long counter; - } atomic64_t; - -+typedef atomic64_t atomic64_unchecked_t; -+ - #define ATOMIC64_INIT(i) { (i) } - - extern long long atomic64_read(const atomic64_t *v); -@@ -39,4 +41,14 @@ extern int atomic64_add_unless(atomic64_t *v, long long a, long long u); - #define atomic64_dec_and_test(v) (atomic64_dec_return((v)) == 0) - #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1LL, 0LL) - -+#define atomic64_read_unchecked(v) atomic64_read(v) -+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i)) -+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v)) -+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v)) -+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v)) -+#define atomic64_inc_unchecked(v) atomic64_inc(v) -+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v) -+#define atomic64_dec_unchecked(v) atomic64_dec(v) -+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n)) -+ - #endif /* _ASM_GENERIC_ATOMIC64_H */ -diff --git a/include/asm-generic/cache.h b/include/asm-generic/cache.h -index 1bfcfe5..e04c5c9 100644 ---- a/include/asm-generic/cache.h -+++ b/include/asm-generic/cache.h -@@ -6,7 +6,7 @@ - * cache lines need to provide their own cache.h. - */ - --#define L1_CACHE_SHIFT 5 --#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+#define L1_CACHE_SHIFT 5UL -+#define L1_CACHE_BYTES (1UL << L1_CACHE_SHIFT) - - #endif /* __ASM_GENERIC_CACHE_H */ -diff --git a/include/asm-generic/emergency-restart.h b/include/asm-generic/emergency-restart.h -index 0d68a1e..b74a761 100644 ---- a/include/asm-generic/emergency-restart.h -+++ b/include/asm-generic/emergency-restart.h -@@ -1,7 +1,7 @@ - #ifndef _ASM_GENERIC_EMERGENCY_RESTART_H - #define _ASM_GENERIC_EMERGENCY_RESTART_H - --static inline void machine_emergency_restart(void) -+static inline __noreturn void machine_emergency_restart(void) - { - machine_restart(NULL); - } -diff --git a/include/asm-generic/kmap_types.h b/include/asm-generic/kmap_types.h -index 0232ccb..13d9165 100644 ---- a/include/asm-generic/kmap_types.h -+++ b/include/asm-generic/kmap_types.h -@@ -29,10 +29,11 @@ KMAP_D(16) KM_IRQ_PTE, - KMAP_D(17) KM_NMI, - KMAP_D(18) KM_NMI_PTE, - KMAP_D(19) KM_KDB, -+KMAP_D(20) KM_CLEARPAGE, - /* - * Remember to update debug_kmap_atomic() when adding new kmap types! - */ --KMAP_D(20) KM_TYPE_NR -+KMAP_D(21) KM_TYPE_NR - }; - - #undef KMAP_D -diff --git a/include/asm-generic/local.h b/include/asm-generic/local.h -index 9ceb03b..2efbcbd 100644 ---- a/include/asm-generic/local.h -+++ b/include/asm-generic/local.h -@@ -39,6 +39,7 @@ typedef struct - #define local_add_return(i, l) atomic_long_add_return((i), (&(l)->a)) - #define local_sub_return(i, l) atomic_long_sub_return((i), (&(l)->a)) - #define local_inc_return(l) atomic_long_inc_return(&(l)->a) -+#define local_dec_return(l) atomic_long_dec_return(&(l)->a) - - #define local_cmpxchg(l, o, n) atomic_long_cmpxchg((&(l)->a), (o), (n)) - #define local_xchg(l, n) atomic_long_xchg((&(l)->a), (n)) -diff --git a/include/asm-generic/pgtable-nopmd.h b/include/asm-generic/pgtable-nopmd.h -index 725612b..9cc513a 100644 ---- a/include/asm-generic/pgtable-nopmd.h -+++ b/include/asm-generic/pgtable-nopmd.h -@@ -1,14 +1,19 @@ - #ifndef _PGTABLE_NOPMD_H - #define _PGTABLE_NOPMD_H - --#ifndef __ASSEMBLY__ -- - #include <asm-generic/pgtable-nopud.h> - --struct mm_struct; -- - #define __PAGETABLE_PMD_FOLDED - -+#define PMD_SHIFT PUD_SHIFT -+#define PTRS_PER_PMD 1 -+#define PMD_SIZE (_AC(1,UL) << PMD_SHIFT) -+#define PMD_MASK (~(PMD_SIZE-1)) -+ -+#ifndef __ASSEMBLY__ -+ -+struct mm_struct; -+ - /* - * Having the pmd type consist of a pud gets the size right, and allows - * us to conceptually access the pud entry that this pmd is folded into -@@ -16,11 +21,6 @@ struct mm_struct; - */ - typedef struct { pud_t pud; } pmd_t; - --#define PMD_SHIFT PUD_SHIFT --#define PTRS_PER_PMD 1 --#define PMD_SIZE (1UL << PMD_SHIFT) --#define PMD_MASK (~(PMD_SIZE-1)) -- - /* - * The "pud_xxx()" functions here are trivial for a folded two-level - * setup: the pmd is never bad, and a pmd always exists (as it's folded -diff --git a/include/asm-generic/pgtable-nopud.h b/include/asm-generic/pgtable-nopud.h -index 810431d..0ec4804f 100644 ---- a/include/asm-generic/pgtable-nopud.h -+++ b/include/asm-generic/pgtable-nopud.h -@@ -1,10 +1,15 @@ - #ifndef _PGTABLE_NOPUD_H - #define _PGTABLE_NOPUD_H - --#ifndef __ASSEMBLY__ -- - #define __PAGETABLE_PUD_FOLDED - -+#define PUD_SHIFT PGDIR_SHIFT -+#define PTRS_PER_PUD 1 -+#define PUD_SIZE (_AC(1,UL) << PUD_SHIFT) -+#define PUD_MASK (~(PUD_SIZE-1)) -+ -+#ifndef __ASSEMBLY__ -+ - /* - * Having the pud type consist of a pgd gets the size right, and allows - * us to conceptually access the pgd entry that this pud is folded into -@@ -12,11 +17,6 @@ - */ - typedef struct { pgd_t pgd; } pud_t; - --#define PUD_SHIFT PGDIR_SHIFT --#define PTRS_PER_PUD 1 --#define PUD_SIZE (1UL << PUD_SHIFT) --#define PUD_MASK (~(PUD_SIZE-1)) -- - /* - * The "pgd_xxx()" functions here are trivial for a folded two-level - * setup: the pud is never bad, and a pud always exists (as it's folded -@@ -29,6 +29,7 @@ static inline void pgd_clear(pgd_t *pgd) { } - #define pud_ERROR(pud) (pgd_ERROR((pud).pgd)) - - #define pgd_populate(mm, pgd, pud) do { } while (0) -+#define pgd_populate_kernel(mm, pgd, pud) do { } while (0) - /* - * (puds are folded into pgds so this doesn't get actually called, - * but the define is needed for a generic inline function.) -diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h -index 125c54e..e95c18e 100644 ---- a/include/asm-generic/pgtable.h -+++ b/include/asm-generic/pgtable.h -@@ -446,6 +446,18 @@ static inline int pmd_write(pmd_t pmd) - #endif /* __HAVE_ARCH_PMD_WRITE */ - #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ - -+#ifndef __HAVE_ARCH_READ_PMD_ATOMIC -+static inline pmd_t read_pmd_atomic(pmd_t *pmdp) -+{ -+ /* -+ * Depend on compiler for an atomic pmd read. NOTE: this is -+ * only going to work, if the pmdval_t isn't larger than -+ * an unsigned long. -+ */ -+ return *pmdp; -+} -+#endif /* __HAVE_ARCH_READ_PMD_ATOMIC */ -+ - /* - * This function is meant to be used by sites walking pagetables with - * the mmap_sem hold in read mode to protect against MADV_DONTNEED and -@@ -459,11 +471,17 @@ static inline int pmd_write(pmd_t pmd) - * undefined so behaving like if the pmd was none is safe (because it - * can return none anyway). The compiler level barrier() is critically - * important to compute the two checks atomically on the same pmdval. -+ * -+ * For 32bit kernels with a 64bit large pmd_t this automatically takes -+ * care of reading the pmd atomically to avoid SMP race conditions -+ * against pmd_populate() when the mmap_sem is hold for reading by the -+ * caller (a special atomic read not done by "gcc" as in the generic -+ * version above, is also needed when THP is disabled because the page -+ * fault can populate the pmd from under us). - */ - static inline int pmd_none_or_trans_huge_or_clear_bad(pmd_t *pmd) - { -- /* depend on compiler for an atomic pmd read */ -- pmd_t pmdval = *pmd; -+ pmd_t pmdval = read_pmd_atomic(pmd); - /* - * The barrier will stabilize the pmdval in a register or on - * the stack so that it will stop changing under the code. -@@ -503,6 +521,14 @@ static inline int pmd_trans_unstable(pmd_t *pmd) - #endif - } - -+#ifndef __HAVE_ARCH_PAX_OPEN_KERNEL -+static inline unsigned long pax_open_kernel(void) { return 0; } -+#endif -+ -+#ifndef __HAVE_ARCH_PAX_CLOSE_KERNEL -+static inline unsigned long pax_close_kernel(void) { return 0; } -+#endif -+ - #endif /* CONFIG_MMU */ - - #endif /* !__ASSEMBLY__ */ -diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h -index 8aeadf6..f1dc019 100644 ---- a/include/asm-generic/vmlinux.lds.h -+++ b/include/asm-generic/vmlinux.lds.h -@@ -218,6 +218,7 @@ - .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start_rodata) = .; \ - *(.rodata) *(.rodata.*) \ -+ *(.data..read_only) \ - *(__vermagic) /* Kernel version magic */ \ - . = ALIGN(8); \ - VMLINUX_SYMBOL(__start___tracepoints_ptrs) = .; \ -@@ -716,17 +717,18 @@ - * section in the linker script will go there too. @phdr should have - * a leading colon. - * -- * Note that this macros defines __per_cpu_load as an absolute symbol. -+ * Note that this macros defines per_cpu_load as an absolute symbol. - * If there is no need to put the percpu section at a predetermined - * address, use PERCPU_SECTION. - */ - #define PERCPU_VADDR(cacheline, vaddr, phdr) \ -- VMLINUX_SYMBOL(__per_cpu_load) = .; \ -- .data..percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load) \ -+ per_cpu_load = .; \ -+ .data..percpu vaddr : AT(VMLINUX_SYMBOL(per_cpu_load) \ - - LOAD_OFFSET) { \ -+ VMLINUX_SYMBOL(__per_cpu_load) = . + per_cpu_load; \ - PERCPU_INPUT(cacheline) \ - } phdr \ -- . = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data..percpu); -+ . = VMLINUX_SYMBOL(per_cpu_load) + SIZEOF(.data..percpu); - - /** - * PERCPU_SECTION - define output section for percpu area, simple version -diff --git a/include/drm/drmP.h b/include/drm/drmP.h -index dd73104..fde86bd 100644 ---- a/include/drm/drmP.h -+++ b/include/drm/drmP.h -@@ -72,6 +72,7 @@ - #include <linux/workqueue.h> - #include <linux/poll.h> - #include <asm/pgalloc.h> -+#include <asm/local.h> - #include "drm.h" - - #include <linux/idr.h> -@@ -1074,7 +1075,7 @@ struct drm_device { - - /** \name Usage Counters */ - /*@{ */ -- int open_count; /**< Outstanding files open */ -+ local_t open_count; /**< Outstanding files open */ - atomic_t ioctl_count; /**< Outstanding IOCTLs pending */ - atomic_t vma_count; /**< Outstanding vma areas open */ - int buf_use; /**< Buffers in use -- cannot alloc */ -@@ -1085,7 +1086,7 @@ struct drm_device { - /*@{ */ - unsigned long counters; - enum drm_stat_type types[15]; -- atomic_t counts[15]; -+ atomic_unchecked_t counts[15]; - /*@} */ - - struct list_head filelist; -diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h -index 37515d1..34fa8b0 100644 ---- a/include/drm/drm_crtc_helper.h -+++ b/include/drm/drm_crtc_helper.h -@@ -74,7 +74,7 @@ struct drm_crtc_helper_funcs { - - /* disable crtc when not in use - more explicit than dpms off */ - void (*disable)(struct drm_crtc *crtc); --}; -+} __no_const; - - struct drm_encoder_helper_funcs { - void (*dpms)(struct drm_encoder *encoder, int mode); -@@ -95,7 +95,7 @@ struct drm_encoder_helper_funcs { - struct drm_connector *connector); - /* disable encoder when not in use - more explicit than dpms off */ - void (*disable)(struct drm_encoder *encoder); --}; -+} __no_const; - - struct drm_connector_helper_funcs { - int (*get_modes)(struct drm_connector *connector); -diff --git a/include/drm/ttm/ttm_memory.h b/include/drm/ttm/ttm_memory.h -index d6d1da4..fdd1ac5 100644 ---- a/include/drm/ttm/ttm_memory.h -+++ b/include/drm/ttm/ttm_memory.h -@@ -48,7 +48,7 @@ - - struct ttm_mem_shrink { - int (*do_shrink) (struct ttm_mem_shrink *); --}; -+} __no_const; - - /** - * struct ttm_mem_global - Global memory accounting structure. -diff --git a/include/linux/a.out.h b/include/linux/a.out.h -index e86dfca..40cc55f 100644 ---- a/include/linux/a.out.h -+++ b/include/linux/a.out.h -@@ -39,6 +39,14 @@ enum machine_type { - M_MIPS2 = 152 /* MIPS R6000/R4000 binary */ - }; - -+/* Constants for the N_FLAGS field */ -+#define F_PAX_PAGEEXEC 1 /* Paging based non-executable pages */ -+#define F_PAX_EMUTRAMP 2 /* Emulate trampolines */ -+#define F_PAX_MPROTECT 4 /* Restrict mprotect() */ -+#define F_PAX_RANDMMAP 8 /* Randomize mmap() base */ -+/*#define F_PAX_RANDEXEC 16*/ /* Randomize ET_EXEC base */ -+#define F_PAX_SEGMEXEC 32 /* Segmentation based non-executable pages */ -+ - #if !defined (N_MAGIC) - #define N_MAGIC(exec) ((exec).a_info & 0xffff) - #endif -diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h -index 06fd4bb..1caec0d 100644 ---- a/include/linux/atmdev.h -+++ b/include/linux/atmdev.h -@@ -237,7 +237,7 @@ struct compat_atm_iobuf { - #endif - - struct k_atm_aal_stats { --#define __HANDLE_ITEM(i) atomic_t i -+#define __HANDLE_ITEM(i) atomic_unchecked_t i - __AAL_STAT_ITEMS - #undef __HANDLE_ITEM - }; -diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h -index 366422b..1fa7f84 100644 ---- a/include/linux/binfmts.h -+++ b/include/linux/binfmts.h -@@ -89,6 +89,7 @@ struct linux_binfmt { - int (*load_binary)(struct linux_binprm *, struct pt_regs * regs); - int (*load_shlib)(struct file *); - int (*core_dump)(struct coredump_params *cprm); -+ void (*handle_mprotect)(struct vm_area_struct *vma, unsigned long newflags); - unsigned long min_coredump; /* minimal dump size */ - }; - -diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h -index 4d4ac24..2c3ccce 100644 ---- a/include/linux/blkdev.h -+++ b/include/linux/blkdev.h -@@ -1376,7 +1376,7 @@ struct block_device_operations { - /* this callback is with swap_lock and sometimes page table lock held */ - void (*swap_slot_free_notify) (struct block_device *, unsigned long); - struct module *owner; --}; -+} __do_const; - - extern int __blkdev_driver_ioctl(struct block_device *, fmode_t, unsigned int, - unsigned long); -diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h -index 4d1a074..88f929a 100644 ---- a/include/linux/blktrace_api.h -+++ b/include/linux/blktrace_api.h -@@ -162,7 +162,7 @@ struct blk_trace { - struct dentry *dir; - struct dentry *dropped_file; - struct dentry *msg_file; -- atomic_t dropped; -+ atomic_unchecked_t dropped; - }; - - extern int blk_trace_ioctl(struct block_device *, unsigned, char __user *); -diff --git a/include/linux/byteorder/little_endian.h b/include/linux/byteorder/little_endian.h -index 83195fb..0b0f77d 100644 ---- a/include/linux/byteorder/little_endian.h -+++ b/include/linux/byteorder/little_endian.h -@@ -42,51 +42,51 @@ - - static inline __le64 __cpu_to_le64p(const __u64 *p) - { -- return (__force __le64)*p; -+ return (__force const __le64)*p; - } - static inline __u64 __le64_to_cpup(const __le64 *p) - { -- return (__force __u64)*p; -+ return (__force const __u64)*p; - } - static inline __le32 __cpu_to_le32p(const __u32 *p) - { -- return (__force __le32)*p; -+ return (__force const __le32)*p; - } - static inline __u32 __le32_to_cpup(const __le32 *p) - { -- return (__force __u32)*p; -+ return (__force const __u32)*p; - } - static inline __le16 __cpu_to_le16p(const __u16 *p) - { -- return (__force __le16)*p; -+ return (__force const __le16)*p; - } - static inline __u16 __le16_to_cpup(const __le16 *p) - { -- return (__force __u16)*p; -+ return (__force const __u16)*p; - } - static inline __be64 __cpu_to_be64p(const __u64 *p) - { -- return (__force __be64)__swab64p(p); -+ return (__force const __be64)__swab64p(p); - } - static inline __u64 __be64_to_cpup(const __be64 *p) - { -- return __swab64p((__u64 *)p); -+ return __swab64p((const __u64 *)p); - } - static inline __be32 __cpu_to_be32p(const __u32 *p) - { -- return (__force __be32)__swab32p(p); -+ return (__force const __be32)__swab32p(p); - } - static inline __u32 __be32_to_cpup(const __be32 *p) - { -- return __swab32p((__u32 *)p); -+ return __swab32p((const __u32 *)p); - } - static inline __be16 __cpu_to_be16p(const __u16 *p) - { -- return (__force __be16)__swab16p(p); -+ return (__force const __be16)__swab16p(p); - } - static inline __u16 __be16_to_cpup(const __be16 *p) - { -- return __swab16p((__u16 *)p); -+ return __swab16p((const __u16 *)p); - } - #define __cpu_to_le64s(x) do { (void)(x); } while (0) - #define __le64_to_cpus(x) do { (void)(x); } while (0) -diff --git a/include/linux/cache.h b/include/linux/cache.h -index 4c57065..4307975 100644 ---- a/include/linux/cache.h -+++ b/include/linux/cache.h -@@ -16,6 +16,10 @@ - #define __read_mostly - #endif - -+#ifndef __read_only -+#define __read_only __read_mostly -+#endif -+ - #ifndef ____cacheline_aligned - #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES))) - #endif -diff --git a/include/linux/capability.h b/include/linux/capability.h -index 12d52de..b5f7fa7 100644 ---- a/include/linux/capability.h -+++ b/include/linux/capability.h -@@ -548,6 +548,8 @@ extern bool has_ns_capability_noaudit(struct task_struct *t, - extern bool capable(int cap); - extern bool ns_capable(struct user_namespace *ns, int cap); - extern bool nsown_capable(int cap); -+extern bool capable_nolog(int cap); -+extern bool ns_capable_nolog(struct user_namespace *ns, int cap); - - /* audit system wants to get cap info from files as well */ - extern int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data *cpu_caps); -diff --git a/include/linux/cleancache.h b/include/linux/cleancache.h -index 42e55de..1cd0e66 100644 ---- a/include/linux/cleancache.h -+++ b/include/linux/cleancache.h -@@ -31,7 +31,7 @@ struct cleancache_ops { - void (*invalidate_page)(int, struct cleancache_filekey, pgoff_t); - void (*invalidate_inode)(int, struct cleancache_filekey); - void (*invalidate_fs)(int); --}; -+} __no_const; - - extern struct cleancache_ops - cleancache_register_ops(struct cleancache_ops *ops); -diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h -index 2f40791..a62d196 100644 ---- a/include/linux/compiler-gcc4.h -+++ b/include/linux/compiler-gcc4.h -@@ -32,6 +32,16 @@ - #define __linktime_error(message) __attribute__((__error__(message))) - - #if __GNUC_MINOR__ >= 5 -+ -+#ifdef CONSTIFY_PLUGIN -+#define __no_const __attribute__((no_const)) -+#define __do_const __attribute__((do_const)) -+#endif -+ -+#ifdef SIZE_OVERFLOW_PLUGIN -+#define __size_overflow(...) __attribute__((size_overflow(__VA_ARGS__))) -+#endif -+ - /* - * Mark a position in code as unreachable. This can be used to - * suppress control flow warnings after asm blocks that transfer -@@ -47,6 +57,11 @@ - #define __noclone __attribute__((__noclone__)) - - #endif -+ -+#define __alloc_size(...) __attribute((alloc_size(__VA_ARGS__))) -+#define __bos(ptr, arg) __builtin_object_size((ptr), (arg)) -+#define __bos0(ptr) __bos((ptr), 0) -+#define __bos1(ptr) __bos((ptr), 1) - #endif - - #if __GNUC_MINOR__ > 0 -diff --git a/include/linux/compiler.h b/include/linux/compiler.h -index 923d093..726c17f 100644 ---- a/include/linux/compiler.h -+++ b/include/linux/compiler.h -@@ -5,31 +5,62 @@ - - #ifdef __CHECKER__ - # define __user __attribute__((noderef, address_space(1))) -+# define __force_user __force __user - # define __kernel __attribute__((address_space(0))) -+# define __force_kernel __force __kernel - # define __safe __attribute__((safe)) - # define __force __attribute__((force)) - # define __nocast __attribute__((nocast)) - # define __iomem __attribute__((noderef, address_space(2))) -+# define __force_iomem __force __iomem - # define __acquires(x) __attribute__((context(x,0,1))) - # define __releases(x) __attribute__((context(x,1,0))) - # define __acquire(x) __context__(x,1) - # define __release(x) __context__(x,-1) - # define __cond_lock(x,c) ((c) ? ({ __acquire(x); 1; }) : 0) - # define __percpu __attribute__((noderef, address_space(3))) -+# define __force_percpu __force __percpu - #ifdef CONFIG_SPARSE_RCU_POINTER - # define __rcu __attribute__((noderef, address_space(4))) -+# define __force_rcu __force __rcu - #else - # define __rcu -+# define __force_rcu - #endif - extern void __chk_user_ptr(const volatile void __user *); - extern void __chk_io_ptr(const volatile void __iomem *); -+#elif defined(CHECKER_PLUGIN) -+//# define __user -+//# define __force_user -+//# define __kernel -+//# define __force_kernel -+# define __safe -+# define __force -+# define __nocast -+# define __iomem -+# define __force_iomem -+# define __chk_user_ptr(x) (void)0 -+# define __chk_io_ptr(x) (void)0 -+# define __builtin_warning(x, y...) (1) -+# define __acquires(x) -+# define __releases(x) -+# define __acquire(x) (void)0 -+# define __release(x) (void)0 -+# define __cond_lock(x,c) (c) -+# define __percpu -+# define __force_percpu -+# define __rcu -+# define __force_rcu - #else - # define __user -+# define __force_user - # define __kernel -+# define __force_kernel - # define __safe - # define __force - # define __nocast - # define __iomem -+# define __force_iomem - # define __chk_user_ptr(x) (void)0 - # define __chk_io_ptr(x) (void)0 - # define __builtin_warning(x, y...) (1) -@@ -39,7 +70,9 @@ extern void __chk_io_ptr(const volatile void __iomem *); - # define __release(x) (void)0 - # define __cond_lock(x,c) (c) - # define __percpu -+# define __force_percpu - # define __rcu -+# define __force_rcu - #endif - - #ifdef __KERNEL__ -@@ -264,6 +297,18 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect); - # define __attribute_const__ /* unimplemented */ - #endif - -+#ifndef __no_const -+# define __no_const -+#endif -+ -+#ifndef __do_const -+# define __do_const -+#endif -+ -+#ifndef __size_overflow -+# define __size_overflow(...) -+#endif -+ - /* - * Tell gcc if a function is cold. The compiler will assume any path - * directly leading to the call is unlikely. -@@ -273,6 +318,22 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect); - #define __cold - #endif - -+#ifndef __alloc_size -+#define __alloc_size(...) -+#endif -+ -+#ifndef __bos -+#define __bos(ptr, arg) -+#endif -+ -+#ifndef __bos0 -+#define __bos0(ptr) -+#endif -+ -+#ifndef __bos1 -+#define __bos1(ptr) -+#endif -+ - /* Simple shorthand for a section definition */ - #ifndef __section - # define __section(S) __attribute__ ((__section__(#S))) -@@ -308,6 +369,7 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect); - * use is to mediate communication between process-level code and irq/NMI - * handlers, all running on the same CPU. - */ --#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x)) -+#define ACCESS_ONCE(x) (*(volatile const typeof(x) *)&(x)) -+#define ACCESS_ONCE_RW(x) (*(volatile typeof(x) *)&(x)) - - #endif /* __LINUX_COMPILER_H */ -diff --git a/include/linux/cred.h b/include/linux/cred.h -index adadf71..6af5560 100644 ---- a/include/linux/cred.h -+++ b/include/linux/cred.h -@@ -207,6 +207,9 @@ static inline void validate_creds_for_do_exit(struct task_struct *tsk) - static inline void validate_process_creds(void) - { - } -+static inline void validate_task_creds(struct task_struct *task) -+{ -+} - #endif - - /** -diff --git a/include/linux/crypto.h b/include/linux/crypto.h -index b92eadf..b4ecdc1 100644 ---- a/include/linux/crypto.h -+++ b/include/linux/crypto.h -@@ -373,7 +373,7 @@ struct cipher_tfm { - const u8 *key, unsigned int keylen); - void (*cit_encrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); - void (*cit_decrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); --}; -+} __no_const; - - struct hash_tfm { - int (*init)(struct hash_desc *desc); -@@ -394,13 +394,13 @@ struct compress_tfm { - int (*cot_decompress)(struct crypto_tfm *tfm, - const u8 *src, unsigned int slen, - u8 *dst, unsigned int *dlen); --}; -+} __no_const; - - struct rng_tfm { - int (*rng_gen_random)(struct crypto_rng *tfm, u8 *rdata, - unsigned int dlen); - int (*rng_reset)(struct crypto_rng *tfm, u8 *seed, unsigned int slen); --}; -+} __no_const; - - #define crt_ablkcipher crt_u.ablkcipher - #define crt_aead crt_u.aead -diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h -index 7925bf0..d5143d2 100644 ---- a/include/linux/decompress/mm.h -+++ b/include/linux/decompress/mm.h -@@ -77,7 +77,7 @@ static void free(void *where) - * warnings when not needed (indeed large_malloc / large_free are not - * needed by inflate */ - --#define malloc(a) kmalloc(a, GFP_KERNEL) -+#define malloc(a) kmalloc((a), GFP_KERNEL) - #define free(a) kfree(a) - - #define large_malloc(a) vmalloc(a) -diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h -index dfc099e..e583e66 100644 ---- a/include/linux/dma-mapping.h -+++ b/include/linux/dma-mapping.h -@@ -51,7 +51,7 @@ struct dma_map_ops { - u64 (*get_required_mask)(struct device *dev); - #endif - int is_phys; --}; -+} __do_const; - - #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) - -diff --git a/include/linux/efi.h b/include/linux/efi.h -index ec45ccd..9923c32 100644 ---- a/include/linux/efi.h -+++ b/include/linux/efi.h -@@ -635,7 +635,7 @@ struct efivar_operations { - efi_get_variable_t *get_variable; - efi_get_next_variable_t *get_next_variable; - efi_set_variable_t *set_variable; --}; -+} __no_const; - - struct efivars { - /* -diff --git a/include/linux/elf.h b/include/linux/elf.h -index 999b4f5..57753b4 100644 ---- a/include/linux/elf.h -+++ b/include/linux/elf.h -@@ -40,6 +40,17 @@ typedef __s64 Elf64_Sxword; - #define PT_GNU_EH_FRAME 0x6474e550 - - #define PT_GNU_STACK (PT_LOOS + 0x474e551) -+#define PT_GNU_RELRO (PT_LOOS + 0x474e552) -+ -+#define PT_PAX_FLAGS (PT_LOOS + 0x5041580) -+ -+/* Constants for the e_flags field */ -+#define EF_PAX_PAGEEXEC 1 /* Paging based non-executable pages */ -+#define EF_PAX_EMUTRAMP 2 /* Emulate trampolines */ -+#define EF_PAX_MPROTECT 4 /* Restrict mprotect() */ -+#define EF_PAX_RANDMMAP 8 /* Randomize mmap() base */ -+/*#define EF_PAX_RANDEXEC 16*/ /* Randomize ET_EXEC base */ -+#define EF_PAX_SEGMEXEC 32 /* Segmentation based non-executable pages */ - - /* - * Extended Numbering -@@ -97,6 +108,8 @@ typedef __s64 Elf64_Sxword; - #define DT_DEBUG 21 - #define DT_TEXTREL 22 - #define DT_JMPREL 23 -+#define DT_FLAGS 30 -+ #define DF_TEXTREL 0x00000004 - #define DT_ENCODING 32 - #define OLD_DT_LOOS 0x60000000 - #define DT_LOOS 0x6000000d -@@ -243,6 +256,19 @@ typedef struct elf64_hdr { - #define PF_W 0x2 - #define PF_X 0x1 - -+#define PF_PAGEEXEC (1U << 4) /* Enable PAGEEXEC */ -+#define PF_NOPAGEEXEC (1U << 5) /* Disable PAGEEXEC */ -+#define PF_SEGMEXEC (1U << 6) /* Enable SEGMEXEC */ -+#define PF_NOSEGMEXEC (1U << 7) /* Disable SEGMEXEC */ -+#define PF_MPROTECT (1U << 8) /* Enable MPROTECT */ -+#define PF_NOMPROTECT (1U << 9) /* Disable MPROTECT */ -+/*#define PF_RANDEXEC (1U << 10)*/ /* Enable RANDEXEC */ -+/*#define PF_NORANDEXEC (1U << 11)*/ /* Disable RANDEXEC */ -+#define PF_EMUTRAMP (1U << 12) /* Enable EMUTRAMP */ -+#define PF_NOEMUTRAMP (1U << 13) /* Disable EMUTRAMP */ -+#define PF_RANDMMAP (1U << 14) /* Enable RANDMMAP */ -+#define PF_NORANDMMAP (1U << 15) /* Disable RANDMMAP */ -+ - typedef struct elf32_phdr{ - Elf32_Word p_type; - Elf32_Off p_offset; -@@ -335,6 +361,8 @@ typedef struct elf64_shdr { - #define EI_OSABI 7 - #define EI_PAD 8 - -+#define EI_PAX 14 -+ - #define ELFMAG0 0x7f /* EI_MAG */ - #define ELFMAG1 'E' - #define ELFMAG2 'L' -@@ -421,6 +449,7 @@ extern Elf32_Dyn _DYNAMIC []; - #define elf_note elf32_note - #define elf_addr_t Elf32_Off - #define Elf_Half Elf32_Half -+#define elf_dyn Elf32_Dyn - - #else - -@@ -431,6 +460,7 @@ extern Elf64_Dyn _DYNAMIC []; - #define elf_note elf64_note - #define elf_addr_t Elf64_Off - #define Elf_Half Elf64_Half -+#define elf_dyn Elf64_Dyn - - #endif - -diff --git a/include/linux/filter.h b/include/linux/filter.h -index 8eeb205..d59bfa2 100644 ---- a/include/linux/filter.h -+++ b/include/linux/filter.h -@@ -134,6 +134,7 @@ struct sock_fprog { /* Required for SO_ATTACH_FILTER. */ - - struct sk_buff; - struct sock; -+struct bpf_jit_work; - - struct sk_filter - { -@@ -141,6 +142,9 @@ struct sk_filter - unsigned int len; /* Number of filter blocks */ - unsigned int (*bpf_func)(const struct sk_buff *skb, - const struct sock_filter *filter); -+#ifdef CONFIG_BPF_JIT -+ struct bpf_jit_work *work; -+#endif - struct rcu_head rcu; - struct sock_filter insns[0]; - }; -diff --git a/include/linux/firewire.h b/include/linux/firewire.h -index cdc9b71..ce69fb5 100644 ---- a/include/linux/firewire.h -+++ b/include/linux/firewire.h -@@ -413,7 +413,7 @@ struct fw_iso_context { - union { - fw_iso_callback_t sc; - fw_iso_mc_callback_t mc; -- } callback; -+ } __no_const callback; - void *callback_data; - }; - -diff --git a/include/linux/fs.h b/include/linux/fs.h -index 25c40b9..1bfd4f4 100644 ---- a/include/linux/fs.h -+++ b/include/linux/fs.h -@@ -1634,7 +1634,8 @@ struct file_operations { - int (*setlease)(struct file *, long, struct file_lock **); - long (*fallocate)(struct file *file, int mode, loff_t offset, - loff_t len); --}; -+} __do_const; -+typedef struct file_operations __no_const file_operations_no_const; - - struct inode_operations { - struct dentry * (*lookup) (struct inode *,struct dentry *, struct nameidata *); -diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h -index 003dc0f..3c4ea97 100644 ---- a/include/linux/fs_struct.h -+++ b/include/linux/fs_struct.h -@@ -6,7 +6,7 @@ - #include <linux/seqlock.h> - - struct fs_struct { -- int users; -+ atomic_t users; - spinlock_t lock; - seqcount_t seq; - int umask; -diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h -index ce31408..b1ad003 100644 ---- a/include/linux/fscache-cache.h -+++ b/include/linux/fscache-cache.h -@@ -102,7 +102,7 @@ struct fscache_operation { - fscache_operation_release_t release; - }; - --extern atomic_t fscache_op_debug_id; -+extern atomic_unchecked_t fscache_op_debug_id; - extern void fscache_op_work_func(struct work_struct *work); - - extern void fscache_enqueue_operation(struct fscache_operation *); -@@ -122,7 +122,7 @@ static inline void fscache_operation_init(struct fscache_operation *op, - { - INIT_WORK(&op->work, fscache_op_work_func); - atomic_set(&op->usage, 1); -- op->debug_id = atomic_inc_return(&fscache_op_debug_id); -+ op->debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id); - op->processor = processor; - op->release = release; - INIT_LIST_HEAD(&op->pend_link); -diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h -index a6dfe69..569586df 100644 ---- a/include/linux/fsnotify.h -+++ b/include/linux/fsnotify.h -@@ -315,7 +315,7 @@ static inline void fsnotify_change(struct dentry *dentry, unsigned int ia_valid) - */ - static inline const unsigned char *fsnotify_oldname_init(const unsigned char *name) - { -- return kstrdup(name, GFP_KERNEL); -+ return (const unsigned char *)kstrdup((const char *)name, GFP_KERNEL); - } - - /* -diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h -index 91d0e0a3..035666b 100644 ---- a/include/linux/fsnotify_backend.h -+++ b/include/linux/fsnotify_backend.h -@@ -105,6 +105,7 @@ struct fsnotify_ops { - void (*freeing_mark)(struct fsnotify_mark *mark, struct fsnotify_group *group); - void (*free_event_priv)(struct fsnotify_event_private_data *priv); - }; -+typedef struct fsnotify_ops __no_const fsnotify_ops_no_const; - - /* - * A group is a "thing" that wants to receive notification about filesystem -diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h -index 176a939..1462211 100644 ---- a/include/linux/ftrace_event.h -+++ b/include/linux/ftrace_event.h -@@ -97,7 +97,7 @@ struct trace_event_functions { - trace_print_func raw; - trace_print_func hex; - trace_print_func binary; --}; -+} __no_const; - - struct trace_event { - struct hlist_node node; -@@ -263,7 +263,7 @@ extern int trace_define_field(struct ftrace_event_call *call, const char *type, - extern int trace_add_event_call(struct ftrace_event_call *call); - extern void trace_remove_event_call(struct ftrace_event_call *call); - --#define is_signed_type(type) (((type)(-1)) < 0) -+#define is_signed_type(type) (((type)(-1)) < (type)1) - - int trace_set_clr_event(const char *system, const char *event, int set); - -diff --git a/include/linux/genhd.h b/include/linux/genhd.h -index 017a7fb..33a8507 100644 ---- a/include/linux/genhd.h -+++ b/include/linux/genhd.h -@@ -185,7 +185,7 @@ struct gendisk { - struct kobject *slave_dir; - - struct timer_rand_state *random; -- atomic_t sync_io; /* RAID */ -+ atomic_unchecked_t sync_io; /* RAID */ - struct disk_events *ev; - #ifdef CONFIG_BLK_DEV_INTEGRITY - struct blk_integrity *integrity; -diff --git a/include/linux/gracl.h b/include/linux/gracl.h -new file mode 100644 -index 0000000..c938b1f ---- /dev/null -+++ b/include/linux/gracl.h -@@ -0,0 +1,319 @@ -+#ifndef GR_ACL_H -+#define GR_ACL_H -+ -+#include <linux/grdefs.h> -+#include <linux/resource.h> -+#include <linux/capability.h> -+#include <linux/dcache.h> -+#include <asm/resource.h> -+ -+/* Major status information */ -+ -+#define GR_VERSION "grsecurity 2.9.1" -+#define GRSECURITY_VERSION 0x2901 -+ -+enum { -+ GR_SHUTDOWN = 0, -+ GR_ENABLE = 1, -+ GR_SPROLE = 2, -+ GR_RELOAD = 3, -+ GR_SEGVMOD = 4, -+ GR_STATUS = 5, -+ GR_UNSPROLE = 6, -+ GR_PASSSET = 7, -+ GR_SPROLEPAM = 8, -+}; -+ -+/* Password setup definitions -+ * kernel/grhash.c */ -+enum { -+ GR_PW_LEN = 128, -+ GR_SALT_LEN = 16, -+ GR_SHA_LEN = 32, -+}; -+ -+enum { -+ GR_SPROLE_LEN = 64, -+}; -+ -+enum { -+ GR_NO_GLOB = 0, -+ GR_REG_GLOB, -+ GR_CREATE_GLOB -+}; -+ -+#define GR_NLIMITS 32 -+ -+/* Begin Data Structures */ -+ -+struct sprole_pw { -+ unsigned char *rolename; -+ unsigned char salt[GR_SALT_LEN]; -+ unsigned char sum[GR_SHA_LEN]; /* 256-bit SHA hash of the password */ -+}; -+ -+struct name_entry { -+ __u32 key; -+ ino_t inode; -+ dev_t device; -+ char *name; -+ __u16 len; -+ __u8 deleted; -+ struct name_entry *prev; -+ struct name_entry *next; -+}; -+ -+struct inodev_entry { -+ struct name_entry *nentry; -+ struct inodev_entry *prev; -+ struct inodev_entry *next; -+}; -+ -+struct acl_role_db { -+ struct acl_role_label **r_hash; -+ __u32 r_size; -+}; -+ -+struct inodev_db { -+ struct inodev_entry **i_hash; -+ __u32 i_size; -+}; -+ -+struct name_db { -+ struct name_entry **n_hash; -+ __u32 n_size; -+}; -+ -+struct crash_uid { -+ uid_t uid; -+ unsigned long expires; -+}; -+ -+struct gr_hash_struct { -+ void **table; -+ void **nametable; -+ void *first; -+ __u32 table_size; -+ __u32 used_size; -+ int type; -+}; -+ -+/* Userspace Grsecurity ACL data structures */ -+ -+struct acl_subject_label { -+ char *filename; -+ ino_t inode; -+ dev_t device; -+ __u32 mode; -+ kernel_cap_t cap_mask; -+ kernel_cap_t cap_lower; -+ kernel_cap_t cap_invert_audit; -+ -+ struct rlimit res[GR_NLIMITS]; -+ __u32 resmask; -+ -+ __u8 user_trans_type; -+ __u8 group_trans_type; -+ uid_t *user_transitions; -+ gid_t *group_transitions; -+ __u16 user_trans_num; -+ __u16 group_trans_num; -+ -+ __u32 sock_families[2]; -+ __u32 ip_proto[8]; -+ __u32 ip_type; -+ struct acl_ip_label **ips; -+ __u32 ip_num; -+ __u32 inaddr_any_override; -+ -+ __u32 crashes; -+ unsigned long expires; -+ -+ struct acl_subject_label *parent_subject; -+ struct gr_hash_struct *hash; -+ struct acl_subject_label *prev; -+ struct acl_subject_label *next; -+ -+ struct acl_object_label **obj_hash; -+ __u32 obj_hash_size; -+ __u16 pax_flags; -+}; -+ -+struct role_allowed_ip { -+ __u32 addr; -+ __u32 netmask; -+ -+ struct role_allowed_ip *prev; -+ struct role_allowed_ip *next; -+}; -+ -+struct role_transition { -+ char *rolename; -+ -+ struct role_transition *prev; -+ struct role_transition *next; -+}; -+ -+struct acl_role_label { -+ char *rolename; -+ uid_t uidgid; -+ __u16 roletype; -+ -+ __u16 auth_attempts; -+ unsigned long expires; -+ -+ struct acl_subject_label *root_label; -+ struct gr_hash_struct *hash; -+ -+ struct acl_role_label *prev; -+ struct acl_role_label *next; -+ -+ struct role_transition *transitions; -+ struct role_allowed_ip *allowed_ips; -+ uid_t *domain_children; -+ __u16 domain_child_num; -+ -+ umode_t umask; -+ -+ struct acl_subject_label **subj_hash; -+ __u32 subj_hash_size; -+}; -+ -+struct user_acl_role_db { -+ struct acl_role_label **r_table; -+ __u32 num_pointers; /* Number of allocations to track */ -+ __u32 num_roles; /* Number of roles */ -+ __u32 num_domain_children; /* Number of domain children */ -+ __u32 num_subjects; /* Number of subjects */ -+ __u32 num_objects; /* Number of objects */ -+}; -+ -+struct acl_object_label { -+ char *filename; -+ ino_t inode; -+ dev_t device; -+ __u32 mode; -+ -+ struct acl_subject_label *nested; -+ struct acl_object_label *globbed; -+ -+ /* next two structures not used */ -+ -+ struct acl_object_label *prev; -+ struct acl_object_label *next; -+}; -+ -+struct acl_ip_label { -+ char *iface; -+ __u32 addr; -+ __u32 netmask; -+ __u16 low, high; -+ __u8 mode; -+ __u32 type; -+ __u32 proto[8]; -+ -+ /* next two structures not used */ -+ -+ struct acl_ip_label *prev; -+ struct acl_ip_label *next; -+}; -+ -+struct gr_arg { -+ struct user_acl_role_db role_db; -+ unsigned char pw[GR_PW_LEN]; -+ unsigned char salt[GR_SALT_LEN]; -+ unsigned char sum[GR_SHA_LEN]; -+ unsigned char sp_role[GR_SPROLE_LEN]; -+ struct sprole_pw *sprole_pws; -+ dev_t segv_device; -+ ino_t segv_inode; -+ uid_t segv_uid; -+ __u16 num_sprole_pws; -+ __u16 mode; -+}; -+ -+struct gr_arg_wrapper { -+ struct gr_arg *arg; -+ __u32 version; -+ __u32 size; -+}; -+ -+struct subject_map { -+ struct acl_subject_label *user; -+ struct acl_subject_label *kernel; -+ struct subject_map *prev; -+ struct subject_map *next; -+}; -+ -+struct acl_subj_map_db { -+ struct subject_map **s_hash; -+ __u32 s_size; -+}; -+ -+/* End Data Structures Section */ -+ -+/* Hash functions generated by empirical testing by Brad Spengler -+ Makes good use of the low bits of the inode. Generally 0-1 times -+ in loop for successful match. 0-3 for unsuccessful match. -+ Shift/add algorithm with modulus of table size and an XOR*/ -+ -+static __inline__ unsigned int -+rhash(const uid_t uid, const __u16 type, const unsigned int sz) -+{ -+ return ((((uid + type) << (16 + type)) ^ uid) % sz); -+} -+ -+ static __inline__ unsigned int -+shash(const struct acl_subject_label *userp, const unsigned int sz) -+{ -+ return ((const unsigned long)userp % sz); -+} -+ -+static __inline__ unsigned int -+fhash(const ino_t ino, const dev_t dev, const unsigned int sz) -+{ -+ return (((ino + dev) ^ ((ino << 13) + (ino << 23) + (dev << 9))) % sz); -+} -+ -+static __inline__ unsigned int -+nhash(const char *name, const __u16 len, const unsigned int sz) -+{ -+ return full_name_hash((const unsigned char *)name, len) % sz; -+} -+ -+#define FOR_EACH_ROLE_START(role) \ -+ role = role_list; \ -+ while (role) { -+ -+#define FOR_EACH_ROLE_END(role) \ -+ role = role->prev; \ -+ } -+ -+#define FOR_EACH_SUBJECT_START(role,subj,iter) \ -+ subj = NULL; \ -+ iter = 0; \ -+ while (iter < role->subj_hash_size) { \ -+ if (subj == NULL) \ -+ subj = role->subj_hash[iter]; \ -+ if (subj == NULL) { \ -+ iter++; \ -+ continue; \ -+ } -+ -+#define FOR_EACH_SUBJECT_END(subj,iter) \ -+ subj = subj->next; \ -+ if (subj == NULL) \ -+ iter++; \ -+ } -+ -+ -+#define FOR_EACH_NESTED_SUBJECT_START(role,subj) \ -+ subj = role->hash->first; \ -+ while (subj != NULL) { -+ -+#define FOR_EACH_NESTED_SUBJECT_END(subj) \ -+ subj = subj->next; \ -+ } -+ -+#endif -+ -diff --git a/include/linux/gralloc.h b/include/linux/gralloc.h -new file mode 100644 -index 0000000..323ecf2 ---- /dev/null -+++ b/include/linux/gralloc.h -@@ -0,0 +1,9 @@ -+#ifndef __GRALLOC_H -+#define __GRALLOC_H -+ -+void acl_free_all(void); -+int acl_alloc_stack_init(unsigned long size); -+void *acl_alloc(unsigned long len); -+void *acl_alloc_num(unsigned long num, unsigned long len); -+ -+#endif -diff --git a/include/linux/grdefs.h b/include/linux/grdefs.h -new file mode 100644 -index 0000000..b30e9bc ---- /dev/null -+++ b/include/linux/grdefs.h -@@ -0,0 +1,140 @@ -+#ifndef GRDEFS_H -+#define GRDEFS_H -+ -+/* Begin grsecurity status declarations */ -+ -+enum { -+ GR_READY = 0x01, -+ GR_STATUS_INIT = 0x00 // disabled state -+}; -+ -+/* Begin ACL declarations */ -+ -+/* Role flags */ -+ -+enum { -+ GR_ROLE_USER = 0x0001, -+ GR_ROLE_GROUP = 0x0002, -+ GR_ROLE_DEFAULT = 0x0004, -+ GR_ROLE_SPECIAL = 0x0008, -+ GR_ROLE_AUTH = 0x0010, -+ GR_ROLE_NOPW = 0x0020, -+ GR_ROLE_GOD = 0x0040, -+ GR_ROLE_LEARN = 0x0080, -+ GR_ROLE_TPE = 0x0100, -+ GR_ROLE_DOMAIN = 0x0200, -+ GR_ROLE_PAM = 0x0400, -+ GR_ROLE_PERSIST = 0x0800 -+}; -+ -+/* ACL Subject and Object mode flags */ -+enum { -+ GR_DELETED = 0x80000000 -+}; -+ -+/* ACL Object-only mode flags */ -+enum { -+ GR_READ = 0x00000001, -+ GR_APPEND = 0x00000002, -+ GR_WRITE = 0x00000004, -+ GR_EXEC = 0x00000008, -+ GR_FIND = 0x00000010, -+ GR_INHERIT = 0x00000020, -+ GR_SETID = 0x00000040, -+ GR_CREATE = 0x00000080, -+ GR_DELETE = 0x00000100, -+ GR_LINK = 0x00000200, -+ GR_AUDIT_READ = 0x00000400, -+ GR_AUDIT_APPEND = 0x00000800, -+ GR_AUDIT_WRITE = 0x00001000, -+ GR_AUDIT_EXEC = 0x00002000, -+ GR_AUDIT_FIND = 0x00004000, -+ GR_AUDIT_INHERIT= 0x00008000, -+ GR_AUDIT_SETID = 0x00010000, -+ GR_AUDIT_CREATE = 0x00020000, -+ GR_AUDIT_DELETE = 0x00040000, -+ GR_AUDIT_LINK = 0x00080000, -+ GR_PTRACERD = 0x00100000, -+ GR_NOPTRACE = 0x00200000, -+ GR_SUPPRESS = 0x00400000, -+ GR_NOLEARN = 0x00800000, -+ GR_INIT_TRANSFER= 0x01000000 -+}; -+ -+#define GR_AUDITS (GR_AUDIT_READ | GR_AUDIT_WRITE | GR_AUDIT_APPEND | GR_AUDIT_EXEC | \ -+ GR_AUDIT_FIND | GR_AUDIT_INHERIT | GR_AUDIT_SETID | \ -+ GR_AUDIT_CREATE | GR_AUDIT_DELETE | GR_AUDIT_LINK) -+ -+/* ACL subject-only mode flags */ -+enum { -+ GR_KILL = 0x00000001, -+ GR_VIEW = 0x00000002, -+ GR_PROTECTED = 0x00000004, -+ GR_LEARN = 0x00000008, -+ GR_OVERRIDE = 0x00000010, -+ /* just a placeholder, this mode is only used in userspace */ -+ GR_DUMMY = 0x00000020, -+ GR_PROTSHM = 0x00000040, -+ GR_KILLPROC = 0x00000080, -+ GR_KILLIPPROC = 0x00000100, -+ /* just a placeholder, this mode is only used in userspace */ -+ GR_NOTROJAN = 0x00000200, -+ GR_PROTPROCFD = 0x00000400, -+ GR_PROCACCT = 0x00000800, -+ GR_RELAXPTRACE = 0x00001000, -+ GR_NESTED = 0x00002000, -+ GR_INHERITLEARN = 0x00004000, -+ GR_PROCFIND = 0x00008000, -+ GR_POVERRIDE = 0x00010000, -+ GR_KERNELAUTH = 0x00020000, -+ GR_ATSECURE = 0x00040000, -+ GR_SHMEXEC = 0x00080000 -+}; -+ -+enum { -+ GR_PAX_ENABLE_SEGMEXEC = 0x0001, -+ GR_PAX_ENABLE_PAGEEXEC = 0x0002, -+ GR_PAX_ENABLE_MPROTECT = 0x0004, -+ GR_PAX_ENABLE_RANDMMAP = 0x0008, -+ GR_PAX_ENABLE_EMUTRAMP = 0x0010, -+ GR_PAX_DISABLE_SEGMEXEC = 0x0100, -+ GR_PAX_DISABLE_PAGEEXEC = 0x0200, -+ GR_PAX_DISABLE_MPROTECT = 0x0400, -+ GR_PAX_DISABLE_RANDMMAP = 0x0800, -+ GR_PAX_DISABLE_EMUTRAMP = 0x1000, -+}; -+ -+enum { -+ GR_ID_USER = 0x01, -+ GR_ID_GROUP = 0x02, -+}; -+ -+enum { -+ GR_ID_ALLOW = 0x01, -+ GR_ID_DENY = 0x02, -+}; -+ -+#define GR_CRASH_RES 31 -+#define GR_UIDTABLE_MAX 500 -+ -+/* begin resource learning section */ -+enum { -+ GR_RLIM_CPU_BUMP = 60, -+ GR_RLIM_FSIZE_BUMP = 50000, -+ GR_RLIM_DATA_BUMP = 10000, -+ GR_RLIM_STACK_BUMP = 1000, -+ GR_RLIM_CORE_BUMP = 10000, -+ GR_RLIM_RSS_BUMP = 500000, -+ GR_RLIM_NPROC_BUMP = 1, -+ GR_RLIM_NOFILE_BUMP = 5, -+ GR_RLIM_MEMLOCK_BUMP = 50000, -+ GR_RLIM_AS_BUMP = 500000, -+ GR_RLIM_LOCKS_BUMP = 2, -+ GR_RLIM_SIGPENDING_BUMP = 5, -+ GR_RLIM_MSGQUEUE_BUMP = 10000, -+ GR_RLIM_NICE_BUMP = 1, -+ GR_RLIM_RTPRIO_BUMP = 1, -+ GR_RLIM_RTTIME_BUMP = 1000000 -+}; -+ -+#endif -diff --git a/include/linux/grinternal.h b/include/linux/grinternal.h -new file mode 100644 -index 0000000..da390f1 ---- /dev/null -+++ b/include/linux/grinternal.h -@@ -0,0 +1,221 @@ -+#ifndef __GRINTERNAL_H -+#define __GRINTERNAL_H -+ -+#ifdef CONFIG_GRKERNSEC -+ -+#include <linux/fs.h> -+#include <linux/mnt_namespace.h> -+#include <linux/nsproxy.h> -+#include <linux/gracl.h> -+#include <linux/grdefs.h> -+#include <linux/grmsg.h> -+ -+void gr_add_learn_entry(const char *fmt, ...) -+ __attribute__ ((format (printf, 1, 2))); -+__u32 gr_search_file(const struct dentry *dentry, const __u32 mode, -+ const struct vfsmount *mnt); -+__u32 gr_check_create(const struct dentry *new_dentry, -+ const struct dentry *parent, -+ const struct vfsmount *mnt, const __u32 mode); -+int gr_check_protected_task(const struct task_struct *task); -+__u32 to_gr_audit(const __u32 reqmode); -+int gr_set_acls(const int type); -+int gr_apply_subject_to_task(struct task_struct *task); -+int gr_acl_is_enabled(void); -+char gr_roletype_to_char(void); -+ -+void gr_handle_alertkill(struct task_struct *task); -+char *gr_to_filename(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+char *gr_to_filename1(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+char *gr_to_filename2(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+char *gr_to_filename3(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+ -+extern int grsec_enable_ptrace_readexec; -+extern int grsec_enable_harden_ptrace; -+extern int grsec_enable_link; -+extern int grsec_enable_fifo; -+extern int grsec_enable_execve; -+extern int grsec_enable_shm; -+extern int grsec_enable_execlog; -+extern int grsec_enable_signal; -+extern int grsec_enable_audit_ptrace; -+extern int grsec_enable_forkfail; -+extern int grsec_enable_time; -+extern int grsec_enable_rofs; -+extern int grsec_enable_chroot_shmat; -+extern int grsec_enable_chroot_mount; -+extern int grsec_enable_chroot_double; -+extern int grsec_enable_chroot_pivot; -+extern int grsec_enable_chroot_chdir; -+extern int grsec_enable_chroot_chmod; -+extern int grsec_enable_chroot_mknod; -+extern int grsec_enable_chroot_fchdir; -+extern int grsec_enable_chroot_nice; -+extern int grsec_enable_chroot_execlog; -+extern int grsec_enable_chroot_caps; -+extern int grsec_enable_chroot_sysctl; -+extern int grsec_enable_chroot_unix; -+extern int grsec_enable_tpe; -+extern int grsec_tpe_gid; -+extern int grsec_enable_tpe_all; -+extern int grsec_enable_tpe_invert; -+extern int grsec_enable_socket_all; -+extern int grsec_socket_all_gid; -+extern int grsec_enable_socket_client; -+extern int grsec_socket_client_gid; -+extern int grsec_enable_socket_server; -+extern int grsec_socket_server_gid; -+extern int grsec_audit_gid; -+extern int grsec_enable_group; -+extern int grsec_enable_audit_textrel; -+extern int grsec_enable_log_rwxmaps; -+extern int grsec_enable_mount; -+extern int grsec_enable_chdir; -+extern int grsec_resource_logging; -+extern int grsec_enable_blackhole; -+extern int grsec_lastack_retries; -+extern int grsec_enable_brute; -+extern int grsec_lock; -+ -+extern spinlock_t grsec_alert_lock; -+extern unsigned long grsec_alert_wtime; -+extern unsigned long grsec_alert_fyet; -+ -+extern spinlock_t grsec_audit_lock; -+ -+extern rwlock_t grsec_exec_file_lock; -+ -+#define gr_task_fullpath(tsk) ((tsk)->exec_file ? \ -+ gr_to_filename2((tsk)->exec_file->f_path.dentry, \ -+ (tsk)->exec_file->f_vfsmnt) : "/") -+ -+#define gr_parent_task_fullpath(tsk) ((tsk)->real_parent->exec_file ? \ -+ gr_to_filename3((tsk)->real_parent->exec_file->f_path.dentry, \ -+ (tsk)->real_parent->exec_file->f_vfsmnt) : "/") -+ -+#define gr_task_fullpath0(tsk) ((tsk)->exec_file ? \ -+ gr_to_filename((tsk)->exec_file->f_path.dentry, \ -+ (tsk)->exec_file->f_vfsmnt) : "/") -+ -+#define gr_parent_task_fullpath0(tsk) ((tsk)->real_parent->exec_file ? \ -+ gr_to_filename1((tsk)->real_parent->exec_file->f_path.dentry, \ -+ (tsk)->real_parent->exec_file->f_vfsmnt) : "/") -+ -+#define proc_is_chrooted(tsk_a) ((tsk_a)->gr_is_chrooted) -+ -+#define have_same_root(tsk_a,tsk_b) ((tsk_a)->gr_chroot_dentry == (tsk_b)->gr_chroot_dentry) -+ -+#define DEFAULTSECARGS(task, cred, pcred) gr_task_fullpath(task), (task)->comm, \ -+ (task)->pid, (cred)->uid, \ -+ (cred)->euid, (cred)->gid, (cred)->egid, \ -+ gr_parent_task_fullpath(task), \ -+ (task)->real_parent->comm, (task)->real_parent->pid, \ -+ (pcred)->uid, (pcred)->euid, \ -+ (pcred)->gid, (pcred)->egid -+ -+#define GR_CHROOT_CAPS {{ \ -+ CAP_TO_MASK(CAP_LINUX_IMMUTABLE) | CAP_TO_MASK(CAP_NET_ADMIN) | \ -+ CAP_TO_MASK(CAP_SYS_MODULE) | CAP_TO_MASK(CAP_SYS_RAWIO) | \ -+ CAP_TO_MASK(CAP_SYS_PACCT) | CAP_TO_MASK(CAP_SYS_ADMIN) | \ -+ CAP_TO_MASK(CAP_SYS_BOOT) | CAP_TO_MASK(CAP_SYS_TIME) | \ -+ CAP_TO_MASK(CAP_NET_RAW) | CAP_TO_MASK(CAP_SYS_TTY_CONFIG) | \ -+ CAP_TO_MASK(CAP_IPC_OWNER) | CAP_TO_MASK(CAP_SETFCAP), \ -+ CAP_TO_MASK(CAP_SYSLOG) | CAP_TO_MASK(CAP_MAC_ADMIN) }} -+ -+#define security_learn(normal_msg,args...) \ -+({ \ -+ read_lock(&grsec_exec_file_lock); \ -+ gr_add_learn_entry(normal_msg "\n", ## args); \ -+ read_unlock(&grsec_exec_file_lock); \ -+}) -+ -+enum { -+ GR_DO_AUDIT, -+ GR_DONT_AUDIT, -+ /* used for non-audit messages that we shouldn't kill the task on */ -+ GR_DONT_AUDIT_GOOD -+}; -+ -+enum { -+ GR_TTYSNIFF, -+ GR_RBAC, -+ GR_RBAC_STR, -+ GR_STR_RBAC, -+ GR_RBAC_MODE2, -+ GR_RBAC_MODE3, -+ GR_FILENAME, -+ GR_SYSCTL_HIDDEN, -+ GR_NOARGS, -+ GR_ONE_INT, -+ GR_ONE_INT_TWO_STR, -+ GR_ONE_STR, -+ GR_STR_INT, -+ GR_TWO_STR_INT, -+ GR_TWO_INT, -+ GR_TWO_U64, -+ GR_THREE_INT, -+ GR_FIVE_INT_TWO_STR, -+ GR_TWO_STR, -+ GR_THREE_STR, -+ GR_FOUR_STR, -+ GR_STR_FILENAME, -+ GR_FILENAME_STR, -+ GR_FILENAME_TWO_INT, -+ GR_FILENAME_TWO_INT_STR, -+ GR_TEXTREL, -+ GR_PTRACE, -+ GR_RESOURCE, -+ GR_CAP, -+ GR_SIG, -+ GR_SIG2, -+ GR_CRASH1, -+ GR_CRASH2, -+ GR_PSACCT, -+ GR_RWXMAP -+}; -+ -+#define gr_log_hidden_sysctl(audit, msg, str) gr_log_varargs(audit, msg, GR_SYSCTL_HIDDEN, str) -+#define gr_log_ttysniff(audit, msg, task) gr_log_varargs(audit, msg, GR_TTYSNIFF, task) -+#define gr_log_fs_rbac_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_RBAC, dentry, mnt) -+#define gr_log_fs_rbac_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_RBAC_STR, dentry, mnt, str) -+#define gr_log_fs_str_rbac(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_RBAC, str, dentry, mnt) -+#define gr_log_fs_rbac_mode2(audit, msg, dentry, mnt, str1, str2) gr_log_varargs(audit, msg, GR_RBAC_MODE2, dentry, mnt, str1, str2) -+#define gr_log_fs_rbac_mode3(audit, msg, dentry, mnt, str1, str2, str3) gr_log_varargs(audit, msg, GR_RBAC_MODE3, dentry, mnt, str1, str2, str3) -+#define gr_log_fs_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_FILENAME, dentry, mnt) -+#define gr_log_noargs(audit, msg) gr_log_varargs(audit, msg, GR_NOARGS) -+#define gr_log_int(audit, msg, num) gr_log_varargs(audit, msg, GR_ONE_INT, num) -+#define gr_log_int_str2(audit, msg, num, str1, str2) gr_log_varargs(audit, msg, GR_ONE_INT_TWO_STR, num, str1, str2) -+#define gr_log_str(audit, msg, str) gr_log_varargs(audit, msg, GR_ONE_STR, str) -+#define gr_log_str_int(audit, msg, str, num) gr_log_varargs(audit, msg, GR_STR_INT, str, num) -+#define gr_log_int_int(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_INT, num1, num2) -+#define gr_log_two_u64(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_U64, num1, num2) -+#define gr_log_int3(audit, msg, num1, num2, num3) gr_log_varargs(audit, msg, GR_THREE_INT, num1, num2, num3) -+#define gr_log_int5_str2(audit, msg, num1, num2, str1, str2) gr_log_varargs(audit, msg, GR_FIVE_INT_TWO_STR, num1, num2, str1, str2) -+#define gr_log_str_str(audit, msg, str1, str2) gr_log_varargs(audit, msg, GR_TWO_STR, str1, str2) -+#define gr_log_str2_int(audit, msg, str1, str2, num) gr_log_varargs(audit, msg, GR_TWO_STR_INT, str1, str2, num) -+#define gr_log_str3(audit, msg, str1, str2, str3) gr_log_varargs(audit, msg, GR_THREE_STR, str1, str2, str3) -+#define gr_log_str4(audit, msg, str1, str2, str3, str4) gr_log_varargs(audit, msg, GR_FOUR_STR, str1, str2, str3, str4) -+#define gr_log_str_fs(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_FILENAME, str, dentry, mnt) -+#define gr_log_fs_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_FILENAME_STR, dentry, mnt, str) -+#define gr_log_fs_int2(audit, msg, dentry, mnt, num1, num2) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT, dentry, mnt, num1, num2) -+#define gr_log_fs_int2_str(audit, msg, dentry, mnt, num1, num2, str) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT_STR, dentry, mnt, num1, num2, str) -+#define gr_log_textrel_ulong_ulong(audit, msg, file, ulong1, ulong2) gr_log_varargs(audit, msg, GR_TEXTREL, file, ulong1, ulong2) -+#define gr_log_ptrace(audit, msg, task) gr_log_varargs(audit, msg, GR_PTRACE, task) -+#define gr_log_res_ulong2_str(audit, msg, task, ulong1, str, ulong2) gr_log_varargs(audit, msg, GR_RESOURCE, task, ulong1, str, ulong2) -+#define gr_log_cap(audit, msg, task, str) gr_log_varargs(audit, msg, GR_CAP, task, str) -+#define gr_log_sig_addr(audit, msg, str, addr) gr_log_varargs(audit, msg, GR_SIG, str, addr) -+#define gr_log_sig_task(audit, msg, task, num) gr_log_varargs(audit, msg, GR_SIG2, task, num) -+#define gr_log_crash1(audit, msg, task, ulong) gr_log_varargs(audit, msg, GR_CRASH1, task, ulong) -+#define gr_log_crash2(audit, msg, task, ulong1) gr_log_varargs(audit, msg, GR_CRASH2, task, ulong1) -+#define gr_log_procacct(audit, msg, task, num1, num2, num3, num4, num5, num6, num7, num8, num9) gr_log_varargs(audit, msg, GR_PSACCT, task, num1, num2, num3, num4, num5, num6, num7, num8, num9) -+#define gr_log_rwxmap(audit, msg, str) gr_log_varargs(audit, msg, GR_RWXMAP, str) -+ -+void gr_log_varargs(int audit, const char *msg, int argtypes, ...); -+ -+#endif -+ -+#endif -diff --git a/include/linux/grmsg.h b/include/linux/grmsg.h -new file mode 100644 -index 0000000..ae576a1 ---- /dev/null -+++ b/include/linux/grmsg.h -@@ -0,0 +1,109 @@ -+#define DEFAULTSECMSG "%.256s[%.16s:%d] uid/euid:%u/%u gid/egid:%u/%u, parent %.256s[%.16s:%d] uid/euid:%u/%u gid/egid:%u/%u" -+#define GR_ACL_PROCACCT_MSG "%.256s[%.16s:%d] IP:%pI4 TTY:%.64s uid/euid:%u/%u gid/egid:%u/%u run time:[%ud %uh %um %us] cpu time:[%ud %uh %um %us] %s with exit code %ld, parent %.256s[%.16s:%d] IP:%pI4 TTY:%.64s uid/euid:%u/%u gid/egid:%u/%u" -+#define GR_PTRACE_ACL_MSG "denied ptrace of %.950s(%.16s:%d) by " -+#define GR_STOPMOD_MSG "denied modification of module state by " -+#define GR_ROFS_BLOCKWRITE_MSG "denied write to block device %.950s by " -+#define GR_ROFS_MOUNT_MSG "denied writable mount of %.950s by " -+#define GR_IOPERM_MSG "denied use of ioperm() by " -+#define GR_IOPL_MSG "denied use of iopl() by " -+#define GR_SHMAT_ACL_MSG "denied attach of shared memory of UID %u, PID %d, ID %u by " -+#define GR_UNIX_CHROOT_MSG "denied connect() to abstract AF_UNIX socket outside of chroot by " -+#define GR_SHMAT_CHROOT_MSG "denied attach of shared memory outside of chroot by " -+#define GR_MEM_READWRITE_MSG "denied access of range %Lx -> %Lx in /dev/mem by " -+#define GR_SYMLINK_MSG "not following symlink %.950s owned by %d.%d by " -+#define GR_LEARN_AUDIT_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%lu\t%lu\t%.4095s\t%lu\t%pI4" -+#define GR_ID_LEARN_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%c\t%d\t%d\t%d\t%pI4" -+#define GR_HIDDEN_ACL_MSG "%s access to hidden file %.950s by " -+#define GR_OPEN_ACL_MSG "%s open of %.950s for%s%s by " -+#define GR_CREATE_ACL_MSG "%s create of %.950s for%s%s by " -+#define GR_FIFO_MSG "denied writing FIFO %.950s of %d.%d by " -+#define GR_MKNOD_CHROOT_MSG "denied mknod of %.950s from chroot by " -+#define GR_MKNOD_ACL_MSG "%s mknod of %.950s by " -+#define GR_UNIXCONNECT_ACL_MSG "%s connect() to the unix domain socket %.950s by " -+#define GR_TTYSNIFF_ACL_MSG "terminal being sniffed by IP:%pI4 %.480s[%.16s:%d], parent %.480s[%.16s:%d] against " -+#define GR_MKDIR_ACL_MSG "%s mkdir of %.950s by " -+#define GR_RMDIR_ACL_MSG "%s rmdir of %.950s by " -+#define GR_UNLINK_ACL_MSG "%s unlink of %.950s by " -+#define GR_SYMLINK_ACL_MSG "%s symlink from %.480s to %.480s by " -+#define GR_HARDLINK_MSG "denied hardlink of %.930s (owned by %d.%d) to %.30s for " -+#define GR_LINK_ACL_MSG "%s link of %.480s to %.480s by " -+#define GR_INHERIT_ACL_MSG "successful inherit of %.480s's ACL for %.480s by " -+#define GR_RENAME_ACL_MSG "%s rename of %.480s to %.480s by " -+#define GR_UNSAFESHARE_EXEC_ACL_MSG "denied exec with cloned fs of %.950s by " -+#define GR_PTRACE_EXEC_ACL_MSG "denied ptrace of %.950s by " -+#define GR_EXEC_ACL_MSG "%s execution of %.950s by " -+#define GR_EXEC_TPE_MSG "denied untrusted exec (due to %.70s) of %.950s by " -+#define GR_SEGVSTART_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning uid %u from login for %lu seconds" -+#define GR_SEGVNOSUID_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning execution for %lu seconds" -+#define GR_MOUNT_CHROOT_MSG "denied mount of %.256s as %.930s from chroot by " -+#define GR_PIVOT_CHROOT_MSG "denied pivot_root from chroot by " -+#define GR_TRUNCATE_ACL_MSG "%s truncate of %.950s by " -+#define GR_ATIME_ACL_MSG "%s access time change of %.950s by " -+#define GR_ACCESS_ACL_MSG "%s access of %.950s for%s%s%s by " -+#define GR_CHROOT_CHROOT_MSG "denied double chroot to %.950s by " -+#define GR_CHMOD_CHROOT_MSG "denied chmod +s of %.950s by " -+#define GR_CHMOD_ACL_MSG "%s chmod of %.950s by " -+#define GR_CHROOT_FCHDIR_MSG "denied fchdir outside of chroot to %.950s by " -+#define GR_CHOWN_ACL_MSG "%s chown of %.950s by " -+#define GR_SETXATTR_ACL_MSG "%s setting extended attributes of %.950s by " -+#define GR_WRITLIB_ACL_MSG "denied load of writable library %.950s by " -+#define GR_INITF_ACL_MSG "init_variables() failed %s by " -+#define GR_DISABLED_ACL_MSG "Error loading %s, trying to run kernel with acls disabled. To disable acls at startup use <kernel image name> gracl=off from your boot loader" -+#define GR_DEV_ACL_MSG "/dev/grsec: %d bytes sent %d required, being fed garbage by " -+#define GR_SHUTS_ACL_MSG "shutdown auth success for " -+#define GR_SHUTF_ACL_MSG "shutdown auth failure for " -+#define GR_SHUTI_ACL_MSG "ignoring shutdown for disabled RBAC system for " -+#define GR_SEGVMODS_ACL_MSG "segvmod auth success for " -+#define GR_SEGVMODF_ACL_MSG "segvmod auth failure for " -+#define GR_SEGVMODI_ACL_MSG "ignoring segvmod for disabled RBAC system for " -+#define GR_ENABLE_ACL_MSG "%s RBAC system loaded by " -+#define GR_ENABLEF_ACL_MSG "unable to load %s for " -+#define GR_RELOADI_ACL_MSG "ignoring reload request for disabled RBAC system" -+#define GR_RELOAD_ACL_MSG "%s RBAC system reloaded by " -+#define GR_RELOADF_ACL_MSG "failed reload of %s for " -+#define GR_SPROLEI_ACL_MSG "ignoring change to special role for disabled RBAC system for " -+#define GR_SPROLES_ACL_MSG "successful change to special role %s (id %d) by " -+#define GR_SPROLEL_ACL_MSG "special role %s (id %d) exited by " -+#define GR_SPROLEF_ACL_MSG "special role %s failure for " -+#define GR_UNSPROLEI_ACL_MSG "ignoring unauth of special role for disabled RBAC system for " -+#define GR_UNSPROLES_ACL_MSG "successful unauth of special role %s (id %d) by " -+#define GR_INVMODE_ACL_MSG "invalid mode %d by " -+#define GR_PRIORITY_CHROOT_MSG "denied priority change of process (%.16s:%d) by " -+#define GR_FAILFORK_MSG "failed fork with errno %s by " -+#define GR_NICE_CHROOT_MSG "denied priority change by " -+#define GR_UNISIGLOG_MSG "%.32s occurred at %p in " -+#define GR_DUALSIGLOG_MSG "signal %d sent to " DEFAULTSECMSG " by " -+#define GR_SIG_ACL_MSG "denied send of signal %d to protected task " DEFAULTSECMSG " by " -+#define GR_SYSCTL_MSG "denied modification of grsecurity sysctl value : %.32s by " -+#define GR_SYSCTL_ACL_MSG "%s sysctl of %.950s for%s%s by " -+#define GR_TIME_MSG "time set by " -+#define GR_DEFACL_MSG "fatal: unable to find subject for (%.16s:%d), loaded by " -+#define GR_MMAP_ACL_MSG "%s executable mmap of %.950s by " -+#define GR_MPROTECT_ACL_MSG "%s executable mprotect of %.950s by " -+#define GR_SOCK_MSG "denied socket(%.16s,%.16s,%.16s) by " -+#define GR_SOCK_NOINET_MSG "denied socket(%.16s,%.16s,%d) by " -+#define GR_BIND_MSG "denied bind() by " -+#define GR_CONNECT_MSG "denied connect() by " -+#define GR_BIND_ACL_MSG "denied bind() to %pI4 port %u sock type %.16s protocol %.16s by " -+#define GR_CONNECT_ACL_MSG "denied connect() to %pI4 port %u sock type %.16s protocol %.16s by " -+#define GR_IP_LEARN_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%pI4\t%u\t%u\t%u\t%u\t%pI4" -+#define GR_EXEC_CHROOT_MSG "exec of %.980s within chroot by process " -+#define GR_CAP_ACL_MSG "use of %s denied for " -+#define GR_CAP_CHROOT_MSG "use of %s in chroot denied for " -+#define GR_CAP_ACL_MSG2 "use of %s permitted for " -+#define GR_USRCHANGE_ACL_MSG "change to uid %u denied for " -+#define GR_GRPCHANGE_ACL_MSG "change to gid %u denied for " -+#define GR_REMOUNT_AUDIT_MSG "remount of %.256s by " -+#define GR_UNMOUNT_AUDIT_MSG "unmount of %.256s by " -+#define GR_MOUNT_AUDIT_MSG "mount of %.256s to %.256s by " -+#define GR_CHDIR_AUDIT_MSG "chdir to %.980s by " -+#define GR_EXEC_AUDIT_MSG "exec of %.930s (%.128s) by " -+#define GR_RESOURCE_MSG "denied resource overstep by requesting %lu for %.16s against limit %lu for " -+#define GR_RWXMMAP_MSG "denied RWX mmap of %.950s by " -+#define GR_RWXMPROTECT_MSG "denied RWX mprotect of %.950s by " -+#define GR_TEXTREL_AUDIT_MSG "text relocation in %s, VMA:0x%08lx 0x%08lx by " -+#define GR_VM86_MSG "denied use of vm86 by " -+#define GR_PTRACE_AUDIT_MSG "process %.950s(%.16s:%d) attached to via ptrace by " -+#define GR_PTRACE_READEXEC_MSG "denied ptrace of unreadable binary %.950s by " -+#define GR_INIT_TRANSFER_MSG "persistent special role transferred privilege to init by " -+#define GR_BADPROCPID_MSG "denied read of sensitive /proc/pid/%s entry via fd passed across exec by " -diff --git a/include/linux/grsecurity.h b/include/linux/grsecurity.h -new file mode 100644 -index 0000000..acd05db ---- /dev/null -+++ b/include/linux/grsecurity.h -@@ -0,0 +1,232 @@ -+#ifndef GR_SECURITY_H -+#define GR_SECURITY_H -+#include <linux/fs.h> -+#include <linux/fs_struct.h> -+#include <linux/binfmts.h> -+#include <linux/gracl.h> -+ -+/* notify of brain-dead configs */ -+#if defined(CONFIG_GRKERNSEC_PROC_USER) && defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+#error "CONFIG_GRKERNSEC_PROC_USER and CONFIG_GRKERNSEC_PROC_USERGROUP cannot both be enabled." -+#endif -+#if defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_PAGEEXEC) && !defined(CONFIG_PAX_SEGMEXEC) && !defined(CONFIG_PAX_KERNEXEC) -+#error "CONFIG_PAX_NOEXEC enabled, but PAGEEXEC, SEGMEXEC, and KERNEXEC are disabled." -+#endif -+#if defined(CONFIG_PAX_ASLR) && !defined(CONFIG_PAX_RANDKSTACK) && !defined(CONFIG_PAX_RANDUSTACK) && !defined(CONFIG_PAX_RANDMMAP) -+#error "CONFIG_PAX_ASLR enabled, but RANDKSTACK, RANDUSTACK, and RANDMMAP are disabled." -+#endif -+#if defined(CONFIG_PAX) && !defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_ASLR) -+#error "CONFIG_PAX enabled, but no PaX options are enabled." -+#endif -+ -+#include <linux/compat.h> -+ -+struct user_arg_ptr { -+#ifdef CONFIG_COMPAT -+ bool is_compat; -+#endif -+ union { -+ const char __user *const __user *native; -+#ifdef CONFIG_COMPAT -+ compat_uptr_t __user *compat; -+#endif -+ } ptr; -+}; -+ -+void gr_handle_brute_attach(struct task_struct *p, unsigned long mm_flags); -+void gr_handle_brute_check(void); -+void gr_handle_kernel_exploit(void); -+int gr_process_user_ban(void); -+ -+char gr_roletype_to_char(void); -+ -+int gr_acl_enable_at_secure(void); -+ -+int gr_check_user_change(int real, int effective, int fs); -+int gr_check_group_change(int real, int effective, int fs); -+ -+void gr_del_task_from_ip_table(struct task_struct *p); -+ -+int gr_pid_is_chrooted(struct task_struct *p); -+int gr_handle_chroot_fowner(struct pid *pid, enum pid_type type); -+int gr_handle_chroot_nice(void); -+int gr_handle_chroot_sysctl(const int op); -+int gr_handle_chroot_setpriority(struct task_struct *p, -+ const int niceval); -+int gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt); -+int gr_handle_chroot_chroot(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+void gr_handle_chroot_chdir(struct path *path); -+int gr_handle_chroot_chmod(const struct dentry *dentry, -+ const struct vfsmount *mnt, const int mode); -+int gr_handle_chroot_mknod(const struct dentry *dentry, -+ const struct vfsmount *mnt, const int mode); -+int gr_handle_chroot_mount(const struct dentry *dentry, -+ const struct vfsmount *mnt, -+ const char *dev_name); -+int gr_handle_chroot_pivot(void); -+int gr_handle_chroot_unix(const pid_t pid); -+ -+int gr_handle_rawio(const struct inode *inode); -+ -+void gr_handle_ioperm(void); -+void gr_handle_iopl(void); -+ -+umode_t gr_acl_umask(void); -+ -+int gr_tpe_allow(const struct file *file); -+ -+void gr_set_chroot_entries(struct task_struct *task, struct path *path); -+void gr_clear_chroot_entries(struct task_struct *task); -+ -+void gr_log_forkfail(const int retval); -+void gr_log_timechange(void); -+void gr_log_signal(const int sig, const void *addr, const struct task_struct *t); -+void gr_log_chdir(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+void gr_log_chroot_exec(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+void gr_handle_exec_args(struct linux_binprm *bprm, struct user_arg_ptr argv); -+void gr_log_remount(const char *devname, const int retval); -+void gr_log_unmount(const char *devname, const int retval); -+void gr_log_mount(const char *from, const char *to, const int retval); -+void gr_log_textrel(struct vm_area_struct *vma); -+void gr_log_rwxmmap(struct file *file); -+void gr_log_rwxmprotect(struct file *file); -+ -+int gr_handle_follow_link(const struct inode *parent, -+ const struct inode *inode, -+ const struct dentry *dentry, -+ const struct vfsmount *mnt); -+int gr_handle_fifo(const struct dentry *dentry, -+ const struct vfsmount *mnt, -+ const struct dentry *dir, const int flag, -+ const int acc_mode); -+int gr_handle_hardlink(const struct dentry *dentry, -+ const struct vfsmount *mnt, -+ struct inode *inode, -+ const int mode, const char *to); -+ -+int gr_is_capable(const int cap); -+int gr_is_capable_nolog(const int cap); -+int gr_task_is_capable(const struct task_struct *task, const struct cred *cred, const int cap); -+int gr_task_is_capable_nolog(const struct task_struct *task, const int cap); -+ -+void gr_learn_resource(const struct task_struct *task, const int limit, -+ const unsigned long wanted, const int gt); -+void gr_copy_label(struct task_struct *tsk); -+void gr_handle_crash(struct task_struct *task, const int sig); -+int gr_handle_signal(const struct task_struct *p, const int sig); -+int gr_check_crash_uid(const uid_t uid); -+int gr_check_protected_task(const struct task_struct *task); -+int gr_check_protected_task_fowner(struct pid *pid, enum pid_type type); -+int gr_acl_handle_mmap(const struct file *file, -+ const unsigned long prot); -+int gr_acl_handle_mprotect(const struct file *file, -+ const unsigned long prot); -+int gr_check_hidden_task(const struct task_struct *tsk); -+__u32 gr_acl_handle_truncate(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+__u32 gr_acl_handle_utime(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+__u32 gr_acl_handle_access(const struct dentry *dentry, -+ const struct vfsmount *mnt, const int fmode); -+__u32 gr_acl_handle_chmod(const struct dentry *dentry, -+ const struct vfsmount *mnt, umode_t *mode); -+__u32 gr_acl_handle_chown(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+__u32 gr_acl_handle_setxattr(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+int gr_handle_ptrace(struct task_struct *task, const long request); -+int gr_handle_proc_ptrace(struct task_struct *task); -+__u32 gr_acl_handle_execve(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+int gr_check_crash_exec(const struct file *filp); -+int gr_acl_is_enabled(void); -+void gr_set_kernel_label(struct task_struct *task); -+void gr_set_role_label(struct task_struct *task, const uid_t uid, -+ const gid_t gid); -+int gr_set_proc_label(const struct dentry *dentry, -+ const struct vfsmount *mnt, -+ const int unsafe_flags); -+__u32 gr_acl_handle_hidden_file(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+__u32 gr_acl_handle_open(const struct dentry *dentry, -+ const struct vfsmount *mnt, int acc_mode); -+__u32 gr_acl_handle_creat(const struct dentry *dentry, -+ const struct dentry *p_dentry, -+ const struct vfsmount *p_mnt, -+ int open_flags, int acc_mode, const int imode); -+void gr_handle_create(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+void gr_handle_proc_create(const struct dentry *dentry, -+ const struct inode *inode); -+__u32 gr_acl_handle_mknod(const struct dentry *new_dentry, -+ const struct dentry *parent_dentry, -+ const struct vfsmount *parent_mnt, -+ const int mode); -+__u32 gr_acl_handle_mkdir(const struct dentry *new_dentry, -+ const struct dentry *parent_dentry, -+ const struct vfsmount *parent_mnt); -+__u32 gr_acl_handle_rmdir(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+void gr_handle_delete(const ino_t ino, const dev_t dev); -+__u32 gr_acl_handle_unlink(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+__u32 gr_acl_handle_symlink(const struct dentry *new_dentry, -+ const struct dentry *parent_dentry, -+ const struct vfsmount *parent_mnt, -+ const char *from); -+__u32 gr_acl_handle_link(const struct dentry *new_dentry, -+ const struct dentry *parent_dentry, -+ const struct vfsmount *parent_mnt, -+ const struct dentry *old_dentry, -+ const struct vfsmount *old_mnt, const char *to); -+int gr_acl_handle_rename(struct dentry *new_dentry, -+ struct dentry *parent_dentry, -+ const struct vfsmount *parent_mnt, -+ struct dentry *old_dentry, -+ struct inode *old_parent_inode, -+ struct vfsmount *old_mnt, const char *newname); -+void gr_handle_rename(struct inode *old_dir, struct inode *new_dir, -+ struct dentry *old_dentry, -+ struct dentry *new_dentry, -+ struct vfsmount *mnt, const __u8 replace); -+__u32 gr_check_link(const struct dentry *new_dentry, -+ const struct dentry *parent_dentry, -+ const struct vfsmount *parent_mnt, -+ const struct dentry *old_dentry, -+ const struct vfsmount *old_mnt); -+int gr_acl_handle_filldir(const struct file *file, const char *name, -+ const unsigned int namelen, const ino_t ino); -+ -+__u32 gr_acl_handle_unix(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+void gr_acl_handle_exit(void); -+void gr_acl_handle_psacct(struct task_struct *task, const long code); -+int gr_acl_handle_procpidmem(const struct task_struct *task); -+int gr_handle_rofs_mount(struct dentry *dentry, struct vfsmount *mnt, int mnt_flags); -+int gr_handle_rofs_blockwrite(struct dentry *dentry, struct vfsmount *mnt, int acc_mode); -+void gr_audit_ptrace(struct task_struct *task); -+dev_t gr_get_dev_from_dentry(struct dentry *dentry); -+ -+int gr_ptrace_readexec(struct file *file, int unsafe_flags); -+ -+#ifdef CONFIG_GRKERNSEC -+void task_grsec_rbac(struct seq_file *m, struct task_struct *p); -+void gr_handle_vm86(void); -+void gr_handle_mem_readwrite(u64 from, u64 to); -+ -+void gr_log_badprocpid(const char *entry); -+ -+extern int grsec_enable_dmesg; -+extern int grsec_disable_privio; -+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK -+extern int grsec_enable_chroot_findtask; -+#endif -+#ifdef CONFIG_GRKERNSEC_SETXID -+extern int grsec_enable_setxid; -+#endif -+#endif -+ -+#endif -diff --git a/include/linux/grsock.h b/include/linux/grsock.h -new file mode 100644 -index 0000000..e7ffaaf ---- /dev/null -+++ b/include/linux/grsock.h -@@ -0,0 +1,19 @@ -+#ifndef __GRSOCK_H -+#define __GRSOCK_H -+ -+extern void gr_attach_curr_ip(const struct sock *sk); -+extern int gr_handle_sock_all(const int family, const int type, -+ const int protocol); -+extern int gr_handle_sock_server(const struct sockaddr *sck); -+extern int gr_handle_sock_server_other(const struct sock *sck); -+extern int gr_handle_sock_client(const struct sockaddr *sck); -+extern int gr_search_connect(struct socket * sock, -+ struct sockaddr_in * addr); -+extern int gr_search_bind(struct socket * sock, -+ struct sockaddr_in * addr); -+extern int gr_search_listen(struct socket * sock); -+extern int gr_search_accept(struct socket * sock); -+extern int gr_search_socket(const int domain, const int type, -+ const int protocol); -+ -+#endif -diff --git a/include/linux/hid.h b/include/linux/hid.h -index 3a95da6..51986f1 100644 ---- a/include/linux/hid.h -+++ b/include/linux/hid.h -@@ -696,7 +696,7 @@ struct hid_ll_driver { - unsigned int code, int value); - - int (*parse)(struct hid_device *hdev); --}; -+} __no_const; - - #define PM_HINT_FULLON 1<<5 - #define PM_HINT_NORMAL 1<<1 -diff --git a/include/linux/highmem.h b/include/linux/highmem.h -index d3999b4..1304cb4 100644 ---- a/include/linux/highmem.h -+++ b/include/linux/highmem.h -@@ -221,6 +221,18 @@ static inline void clear_highpage(struct page *page) - kunmap_atomic(kaddr); - } - -+static inline void sanitize_highpage(struct page *page) -+{ -+ void *kaddr; -+ unsigned long flags; -+ -+ local_irq_save(flags); -+ kaddr = kmap_atomic(page); -+ clear_page(kaddr); -+ kunmap_atomic(kaddr); -+ local_irq_restore(flags); -+} -+ - static inline void zero_user_segments(struct page *page, - unsigned start1, unsigned end1, - unsigned start2, unsigned end2) -diff --git a/include/linux/i2c.h b/include/linux/i2c.h -index 195d8b3..e20cfab 100644 ---- a/include/linux/i2c.h -+++ b/include/linux/i2c.h -@@ -365,6 +365,7 @@ struct i2c_algorithm { - /* To determine what the adapter supports */ - u32 (*functionality) (struct i2c_adapter *); - }; -+typedef struct i2c_algorithm __no_const i2c_algorithm_no_const; - - /* - * i2c_adapter is the structure used to identify a physical i2c bus along -diff --git a/include/linux/i2o.h b/include/linux/i2o.h -index d23c3c2..eb63c81 100644 ---- a/include/linux/i2o.h -+++ b/include/linux/i2o.h -@@ -565,7 +565,7 @@ struct i2o_controller { - struct i2o_device *exec; /* Executive */ - #if BITS_PER_LONG == 64 - spinlock_t context_list_lock; /* lock for context_list */ -- atomic_t context_list_counter; /* needed for unique contexts */ -+ atomic_unchecked_t context_list_counter; /* needed for unique contexts */ - struct list_head context_list; /* list of context id's - and pointers */ - #endif -diff --git a/include/linux/if_team.h b/include/linux/if_team.h -index 58404b0..439ed95 100644 ---- a/include/linux/if_team.h -+++ b/include/linux/if_team.h -@@ -64,6 +64,7 @@ struct team_mode_ops { - void (*port_leave)(struct team *team, struct team_port *port); - void (*port_change_mac)(struct team *team, struct team_port *port); - }; -+typedef struct team_mode_ops __no_const team_mode_ops_no_const; - - enum team_option_type { - TEAM_OPTION_TYPE_U32, -@@ -112,7 +113,7 @@ struct team { - struct list_head option_list; - - const struct team_mode *mode; -- struct team_mode_ops ops; -+ team_mode_ops_no_const ops; - long mode_priv[TEAM_MODE_PRIV_LONGS]; - }; - -diff --git a/include/linux/init.h b/include/linux/init.h -index 6b95109..4aca62c 100644 ---- a/include/linux/init.h -+++ b/include/linux/init.h -@@ -294,13 +294,13 @@ void __init parse_early_options(char *cmdline); - - /* Each module must use one module_init(). */ - #define module_init(initfn) \ -- static inline initcall_t __inittest(void) \ -+ static inline __used initcall_t __inittest(void) \ - { return initfn; } \ - int init_module(void) __attribute__((alias(#initfn))); - - /* This is only required if you want to be unloadable. */ - #define module_exit(exitfn) \ -- static inline exitcall_t __exittest(void) \ -+ static inline __used exitcall_t __exittest(void) \ - { return exitfn; } \ - void cleanup_module(void) __attribute__((alias(#exitfn))); - -diff --git a/include/linux/init_task.h b/include/linux/init_task.h -index e4baff5..83bb175 100644 ---- a/include/linux/init_task.h -+++ b/include/linux/init_task.h -@@ -134,6 +134,12 @@ extern struct cred init_cred; - - #define INIT_TASK_COMM "swapper" - -+#ifdef CONFIG_X86 -+#define INIT_TASK_THREAD_INFO .tinfo = INIT_THREAD_INFO, -+#else -+#define INIT_TASK_THREAD_INFO -+#endif -+ - /* - * INIT_TASK is used to set up the first task table, touch at - * your own risk!. Base=0, limit=0x1fffff (=2MB) -@@ -172,6 +178,7 @@ extern struct cred init_cred; - RCU_INIT_POINTER(.cred, &init_cred), \ - .comm = INIT_TASK_COMM, \ - .thread = INIT_THREAD, \ -+ INIT_TASK_THREAD_INFO \ - .fs = &init_fs, \ - .files = &init_files, \ - .signal = &init_signals, \ -diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h -index e6ca56d..8583707 100644 ---- a/include/linux/intel-iommu.h -+++ b/include/linux/intel-iommu.h -@@ -296,7 +296,7 @@ struct iommu_flush { - u8 fm, u64 type); - void (*flush_iotlb)(struct intel_iommu *iommu, u16 did, u64 addr, - unsigned int size_order, u64 type); --}; -+} __no_const; - - enum { - SR_DMAR_FECTL_REG, -diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h -index 2aea5d2..0b82f0c 100644 ---- a/include/linux/interrupt.h -+++ b/include/linux/interrupt.h -@@ -439,7 +439,7 @@ enum - /* map softirq index to softirq name. update 'softirq_to_name' in - * kernel/softirq.c when adding a new softirq. - */ --extern char *softirq_to_name[NR_SOFTIRQS]; -+extern const char * const softirq_to_name[NR_SOFTIRQS]; - - /* softirq mask and active fields moved to irq_cpustat_t in - * asm/hardirq.h to get better cache usage. KAO -@@ -447,12 +447,12 @@ extern char *softirq_to_name[NR_SOFTIRQS]; - - struct softirq_action - { -- void (*action)(struct softirq_action *); -+ void (*action)(void); - }; - - asmlinkage void do_softirq(void); - asmlinkage void __do_softirq(void); --extern void open_softirq(int nr, void (*action)(struct softirq_action *)); -+extern void open_softirq(int nr, void (*action)(void)); - extern void softirq_init(void); - extern void __raise_softirq_irqoff(unsigned int nr); - -diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h -index 3875719..4cd454c 100644 ---- a/include/linux/kallsyms.h -+++ b/include/linux/kallsyms.h -@@ -15,7 +15,8 @@ - - struct module; - --#ifdef CONFIG_KALLSYMS -+#if !defined(__INCLUDED_BY_HIDESYM) || !defined(CONFIG_KALLSYMS) -+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM) - /* Lookup the address for a symbol. Returns 0 if not found. */ - unsigned long kallsyms_lookup_name(const char *name); - -@@ -99,6 +100,16 @@ static inline int lookup_symbol_attrs(unsigned long addr, unsigned long *size, u - /* Stupid that this does nothing, but I didn't create this mess. */ - #define __print_symbol(fmt, addr) - #endif /*CONFIG_KALLSYMS*/ -+#else /* when included by kallsyms.c, vsnprintf.c, or -+ arch/x86/kernel/dumpstack.c, with HIDESYM enabled */ -+extern void __print_symbol(const char *fmt, unsigned long address); -+extern int sprint_backtrace(char *buffer, unsigned long address); -+extern int sprint_symbol(char *buffer, unsigned long address); -+const char *kallsyms_lookup(unsigned long addr, -+ unsigned long *symbolsize, -+ unsigned long *offset, -+ char **modname, char *namebuf); -+#endif - - /* This macro allows us to keep printk typechecking */ - static __printf(1, 2) -diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h -index c4d2fc1..5df9c19 100644 ---- a/include/linux/kgdb.h -+++ b/include/linux/kgdb.h -@@ -53,7 +53,7 @@ extern int kgdb_connected; - extern int kgdb_io_module_registered; - - extern atomic_t kgdb_setting_breakpoint; --extern atomic_t kgdb_cpu_doing_single_step; -+extern atomic_unchecked_t kgdb_cpu_doing_single_step; - - extern struct task_struct *kgdb_usethread; - extern struct task_struct *kgdb_contthread; -@@ -252,7 +252,7 @@ struct kgdb_arch { - void (*disable_hw_break)(struct pt_regs *regs); - void (*remove_all_hw_break)(void); - void (*correct_hw_break)(void); --}; -+} __do_const; - - /** - * struct kgdb_io - Describe the interface for an I/O driver to talk with KGDB. -@@ -277,7 +277,7 @@ struct kgdb_io { - void (*pre_exception) (void); - void (*post_exception) (void); - int is_console; --}; -+} __do_const; - - extern struct kgdb_arch arch_kgdb_ops; - -diff --git a/include/linux/kmod.h b/include/linux/kmod.h -index dd99c32..da06047 100644 ---- a/include/linux/kmod.h -+++ b/include/linux/kmod.h -@@ -34,6 +34,8 @@ extern char modprobe_path[]; /* for sysctl */ - * usually useless though. */ - extern __printf(2, 3) - int __request_module(bool wait, const char *name, ...); -+extern __printf(3, 4) -+int ___request_module(bool wait, char *param_name, const char *name, ...); - #define request_module(mod...) __request_module(true, mod) - #define request_module_nowait(mod...) __request_module(false, mod) - #define try_then_request_module(x, mod...) \ -diff --git a/include/linux/kref.h b/include/linux/kref.h -index 9c07dce..a92fa71 100644 ---- a/include/linux/kref.h -+++ b/include/linux/kref.h -@@ -63,7 +63,7 @@ static inline void kref_get(struct kref *kref) - static inline int kref_sub(struct kref *kref, unsigned int count, - void (*release)(struct kref *kref)) - { -- WARN_ON(release == NULL); -+ BUG_ON(release == NULL); - - if (atomic_sub_and_test((int) count, &kref->refcount)) { - release(kref); -diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h -index 72cbf08..dd0201d 100644 ---- a/include/linux/kvm_host.h -+++ b/include/linux/kvm_host.h -@@ -322,7 +322,7 @@ void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); - void vcpu_load(struct kvm_vcpu *vcpu); - void vcpu_put(struct kvm_vcpu *vcpu); - --int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, -+int kvm_init(const void *opaque, unsigned vcpu_size, unsigned vcpu_align, - struct module *module); - void kvm_exit(void); - -@@ -486,7 +486,7 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, - struct kvm_guest_debug *dbg); - int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run); - --int kvm_arch_init(void *opaque); -+int kvm_arch_init(const void *opaque); - void kvm_arch_exit(void); - - int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu); -diff --git a/include/linux/libata.h b/include/linux/libata.h -index 6e887c7..4539601 100644 ---- a/include/linux/libata.h -+++ b/include/linux/libata.h -@@ -910,7 +910,7 @@ struct ata_port_operations { - * fields must be pointers. - */ - const struct ata_port_operations *inherits; --}; -+} __do_const; - - struct ata_port_info { - unsigned long flags; -diff --git a/include/linux/mca.h b/include/linux/mca.h -index 3797270..7765ede 100644 ---- a/include/linux/mca.h -+++ b/include/linux/mca.h -@@ -80,7 +80,7 @@ struct mca_bus_accessor_functions { - int region); - void * (*mca_transform_memory)(struct mca_device *, - void *memory); --}; -+} __no_const; - - struct mca_bus { - u64 default_dma_mask; -diff --git a/include/linux/memory.h b/include/linux/memory.h -index 1ac7f6e..a5794d0 100644 ---- a/include/linux/memory.h -+++ b/include/linux/memory.h -@@ -143,7 +143,7 @@ struct memory_accessor { - size_t count); - ssize_t (*write)(struct memory_accessor *, const char *buf, - off_t offset, size_t count); --}; -+} __no_const; - - /* - * Kernel text modification mutex, used for code patching. Users of this lock -diff --git a/include/linux/mfd/abx500.h b/include/linux/mfd/abx500.h -index ee96cd5..7823c3a 100644 ---- a/include/linux/mfd/abx500.h -+++ b/include/linux/mfd/abx500.h -@@ -455,6 +455,7 @@ struct abx500_ops { - int (*event_registers_startup_state_get) (struct device *, u8 *); - int (*startup_irq_enabled) (struct device *, unsigned int); - }; -+typedef struct abx500_ops __no_const abx500_ops_no_const; - - int abx500_register_ops(struct device *core_dev, struct abx500_ops *ops); - void abx500_remove_ops(struct device *dev); -diff --git a/include/linux/mfd/abx500/ux500_chargalg.h b/include/linux/mfd/abx500/ux500_chargalg.h -index 9b07725..3d55001 100644 ---- a/include/linux/mfd/abx500/ux500_chargalg.h -+++ b/include/linux/mfd/abx500/ux500_chargalg.h -@@ -19,7 +19,7 @@ struct ux500_charger_ops { - int (*enable) (struct ux500_charger *, int, int, int); - int (*kick_wd) (struct ux500_charger *); - int (*update_curr) (struct ux500_charger *, int); --}; -+} __no_const; - - /** - * struct ux500_charger - power supply ux500 charger sub class -diff --git a/include/linux/mm.h b/include/linux/mm.h -index 74aa71b..4ae97ba 100644 ---- a/include/linux/mm.h -+++ b/include/linux/mm.h -@@ -116,7 +116,14 @@ extern unsigned int kobjsize(const void *objp); - - #define VM_CAN_NONLINEAR 0x08000000 /* Has ->fault & does nonlinear pages */ - #define VM_MIXEDMAP 0x10000000 /* Can contain "struct page" and pure PFN pages */ -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32) -+#define VM_SAO 0x00000000 /* Strong Access Ordering (powerpc) */ -+#define VM_PAGEEXEC 0x20000000 /* vma->vm_page_prot needs special handling */ -+#else - #define VM_SAO 0x20000000 /* Strong Access Ordering (powerpc) */ -+#endif -+ - #define VM_PFN_AT_MMAP 0x40000000 /* PFNMAP vma that is fully mapped at mmap time */ - #define VM_MERGEABLE 0x80000000 /* KSM may merge identical pages */ - -@@ -1013,34 +1020,6 @@ int set_page_dirty(struct page *page); - int set_page_dirty_lock(struct page *page); - int clear_page_dirty_for_io(struct page *page); - --/* Is the vma a continuation of the stack vma above it? */ --static inline int vma_growsdown(struct vm_area_struct *vma, unsigned long addr) --{ -- return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN); --} -- --static inline int stack_guard_page_start(struct vm_area_struct *vma, -- unsigned long addr) --{ -- return (vma->vm_flags & VM_GROWSDOWN) && -- (vma->vm_start == addr) && -- !vma_growsdown(vma->vm_prev, addr); --} -- --/* Is the vma a continuation of the stack vma below it? */ --static inline int vma_growsup(struct vm_area_struct *vma, unsigned long addr) --{ -- return vma && (vma->vm_start == addr) && (vma->vm_flags & VM_GROWSUP); --} -- --static inline int stack_guard_page_end(struct vm_area_struct *vma, -- unsigned long addr) --{ -- return (vma->vm_flags & VM_GROWSUP) && -- (vma->vm_end == addr) && -- !vma_growsup(vma->vm_next, addr); --} -- - extern pid_t - vm_is_stack(struct task_struct *task, struct vm_area_struct *vma, int in_group); - -@@ -1139,6 +1118,15 @@ static inline void sync_mm_rss(struct mm_struct *mm) - } - #endif - -+#ifdef CONFIG_MMU -+pgprot_t vm_get_page_prot(vm_flags_t vm_flags); -+#else -+static inline pgprot_t vm_get_page_prot(vm_flags_t vm_flags) -+{ -+ return __pgprot(0); -+} -+#endif -+ - int vma_wants_writenotify(struct vm_area_struct *vma); - - extern pte_t *__get_locked_pte(struct mm_struct *mm, unsigned long addr, -@@ -1157,8 +1145,15 @@ static inline int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, - { - return 0; - } -+ -+static inline int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, -+ unsigned long address) -+{ -+ return 0; -+} - #else - int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address); -+int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address); - #endif - - #ifdef __PAGETABLE_PMD_FOLDED -@@ -1167,8 +1162,15 @@ static inline int __pmd_alloc(struct mm_struct *mm, pud_t *pud, - { - return 0; - } -+ -+static inline int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, -+ unsigned long address) -+{ -+ return 0; -+} - #else - int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address); -+int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address); - #endif - - int __pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma, -@@ -1186,11 +1188,23 @@ static inline pud_t *pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long a - NULL: pud_offset(pgd, address); - } - -+static inline pud_t *pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address) -+{ -+ return (unlikely(pgd_none(*pgd)) && __pud_alloc_kernel(mm, pgd, address))? -+ NULL: pud_offset(pgd, address); -+} -+ - static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address) - { - return (unlikely(pud_none(*pud)) && __pmd_alloc(mm, pud, address))? - NULL: pmd_offset(pud, address); - } -+ -+static inline pmd_t *pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address) -+{ -+ return (unlikely(pud_none(*pud)) && __pmd_alloc_kernel(mm, pud, address))? -+ NULL: pmd_offset(pud, address); -+} - #endif /* CONFIG_MMU && !__ARCH_HAS_4LEVEL_HACK */ - - #if USE_SPLIT_PTLOCKS -@@ -1400,6 +1414,7 @@ extern unsigned long do_mmap(struct file *, unsigned long, - unsigned long, unsigned long, - unsigned long, unsigned long); - extern int do_munmap(struct mm_struct *, unsigned long, size_t); -+extern int __do_munmap(struct mm_struct *, unsigned long, size_t); - - /* These take the mm semaphore themselves */ - extern unsigned long vm_brk(unsigned long, unsigned long); -@@ -1462,6 +1477,10 @@ extern struct vm_area_struct * find_vma(struct mm_struct * mm, unsigned long add - extern struct vm_area_struct * find_vma_prev(struct mm_struct * mm, unsigned long addr, - struct vm_area_struct **pprev); - -+extern struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma); -+extern __must_check long pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma); -+extern void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl); -+ - /* Look up the first VMA which intersects the interval start_addr..end_addr-1, - NULL if none. Assume start_addr < end_addr. */ - static inline struct vm_area_struct * find_vma_intersection(struct mm_struct * mm, unsigned long start_addr, unsigned long end_addr) -@@ -1490,15 +1509,6 @@ static inline struct vm_area_struct *find_exact_vma(struct mm_struct *mm, - return vma; - } - --#ifdef CONFIG_MMU --pgprot_t vm_get_page_prot(unsigned long vm_flags); --#else --static inline pgprot_t vm_get_page_prot(unsigned long vm_flags) --{ -- return __pgprot(0); --} --#endif -- - struct vm_area_struct *find_extend_vma(struct mm_struct *, unsigned long addr); - int remap_pfn_range(struct vm_area_struct *, unsigned long addr, - unsigned long pfn, unsigned long size, pgprot_t); -@@ -1602,7 +1612,7 @@ extern int unpoison_memory(unsigned long pfn); - extern int sysctl_memory_failure_early_kill; - extern int sysctl_memory_failure_recovery; - extern void shake_page(struct page *p, int access); --extern atomic_long_t mce_bad_pages; -+extern atomic_long_unchecked_t mce_bad_pages; - extern int soft_offline_page(struct page *page, int flags); - - extern void dump_page(struct page *page); -@@ -1633,5 +1643,11 @@ static inline unsigned int debug_guardpage_minorder(void) { return 0; } - static inline bool page_is_guard(struct page *page) { return false; } - #endif /* CONFIG_DEBUG_PAGEALLOC */ - -+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT -+extern void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot); -+#else -+static inline void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot) {} -+#endif -+ - #endif /* __KERNEL__ */ - #endif /* _LINUX_MM_H */ -diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h -index 3cc3062..efeaeb7 100644 ---- a/include/linux/mm_types.h -+++ b/include/linux/mm_types.h -@@ -252,6 +252,8 @@ struct vm_area_struct { - #ifdef CONFIG_NUMA - struct mempolicy *vm_policy; /* NUMA policy for the VMA */ - #endif -+ -+ struct vm_area_struct *vm_mirror;/* PaX: mirror vma or NULL */ - }; - - struct core_thread { -@@ -326,7 +328,7 @@ struct mm_struct { - unsigned long def_flags; - unsigned long nr_ptes; /* Page table pages */ - unsigned long start_code, end_code, start_data, end_data; -- unsigned long start_brk, brk, start_stack; -+ unsigned long brk_gap, start_brk, brk, start_stack; - unsigned long arg_start, arg_end, env_start, env_end; - - unsigned long saved_auxv[AT_VECTOR_SIZE]; /* for /proc/PID/auxv */ -@@ -388,6 +390,24 @@ struct mm_struct { - #ifdef CONFIG_CPUMASK_OFFSTACK - struct cpumask cpumask_allocation; - #endif -+ -+#if defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS) || defined(CONFIG_PAX_XATTR_PAX_FLAGS) || defined(CONFIG_PAX_HAVE_ACL_FLAGS) || defined(CONFIG_PAX_HOOK_ACL_FLAGS) -+ unsigned long pax_flags; -+#endif -+ -+#ifdef CONFIG_PAX_DLRESOLVE -+ unsigned long call_dl_resolve; -+#endif -+ -+#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT) -+ unsigned long call_syscall; -+#endif -+ -+#ifdef CONFIG_PAX_ASLR -+ unsigned long delta_mmap; /* randomized offset */ -+ unsigned long delta_stack; /* randomized offset */ -+#endif -+ - }; - - static inline void mm_init_cpumask(struct mm_struct *mm) -diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h -index 1d1b1e1..2a13c78 100644 ---- a/include/linux/mmu_notifier.h -+++ b/include/linux/mmu_notifier.h -@@ -255,12 +255,12 @@ static inline void mmu_notifier_mm_destroy(struct mm_struct *mm) - */ - #define ptep_clear_flush_notify(__vma, __address, __ptep) \ - ({ \ -- pte_t __pte; \ -+ pte_t ___pte; \ - struct vm_area_struct *___vma = __vma; \ - unsigned long ___address = __address; \ -- __pte = ptep_clear_flush(___vma, ___address, __ptep); \ -+ ___pte = ptep_clear_flush(___vma, ___address, __ptep); \ - mmu_notifier_invalidate_page(___vma->vm_mm, ___address); \ -- __pte; \ -+ ___pte; \ - }) - - #define pmdp_clear_flush_notify(__vma, __address, __pmdp) \ -diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h -index dff7115..0e001c8 100644 ---- a/include/linux/mmzone.h -+++ b/include/linux/mmzone.h -@@ -380,7 +380,7 @@ struct zone { - unsigned long flags; /* zone flags, see below */ - - /* Zone statistics */ -- atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS]; -+ atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS]; - - /* - * The target ratio of ACTIVE_ANON to INACTIVE_ANON pages on -diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h -index 501da4c..ba79bb4 100644 ---- a/include/linux/mod_devicetable.h -+++ b/include/linux/mod_devicetable.h -@@ -12,7 +12,7 @@ - typedef unsigned long kernel_ulong_t; - #endif - --#define PCI_ANY_ID (~0) -+#define PCI_ANY_ID ((__u16)~0) - - struct pci_device_id { - __u32 vendor, device; /* Vendor and device ID or PCI_ANY_ID*/ -@@ -131,7 +131,7 @@ struct usb_device_id { - #define USB_DEVICE_ID_MATCH_INT_SUBCLASS 0x0100 - #define USB_DEVICE_ID_MATCH_INT_PROTOCOL 0x0200 - --#define HID_ANY_ID (~0) -+#define HID_ANY_ID (~0U) - - struct hid_device_id { - __u16 bus; -diff --git a/include/linux/module.h b/include/linux/module.h -index fbcafe2..e5d9587 100644 ---- a/include/linux/module.h -+++ b/include/linux/module.h -@@ -17,6 +17,7 @@ - #include <linux/moduleparam.h> - #include <linux/tracepoint.h> - #include <linux/export.h> -+#include <linux/fs.h> - - #include <linux/percpu.h> - #include <asm/module.h> -@@ -273,19 +274,16 @@ struct module - int (*init)(void); - - /* If this is non-NULL, vfree after init() returns */ -- void *module_init; -+ void *module_init_rx, *module_init_rw; - - /* Here is the actual code + data, vfree'd on unload. */ -- void *module_core; -+ void *module_core_rx, *module_core_rw; - - /* Here are the sizes of the init and core sections */ -- unsigned int init_size, core_size; -+ unsigned int init_size_rw, core_size_rw; - - /* The size of the executable code in each section. */ -- unsigned int init_text_size, core_text_size; -- -- /* Size of RO sections of the module (text+rodata) */ -- unsigned int init_ro_size, core_ro_size; -+ unsigned int init_size_rx, core_size_rx; - - /* Arch-specific module values */ - struct mod_arch_specific arch; -@@ -341,6 +339,10 @@ struct module - #ifdef CONFIG_EVENT_TRACING - struct ftrace_event_call **trace_events; - unsigned int num_trace_events; -+ struct file_operations trace_id; -+ struct file_operations trace_enable; -+ struct file_operations trace_format; -+ struct file_operations trace_filter; - #endif - #ifdef CONFIG_FTRACE_MCOUNT_RECORD - unsigned int num_ftrace_callsites; -@@ -388,16 +390,46 @@ bool is_module_address(unsigned long addr); - bool is_module_percpu_address(unsigned long addr); - bool is_module_text_address(unsigned long addr); - -+static inline int within_module_range(unsigned long addr, void *start, unsigned long size) -+{ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ if (ktla_ktva(addr) >= (unsigned long)start && -+ ktla_ktva(addr) < (unsigned long)start + size) -+ return 1; -+#endif -+ -+ return ((void *)addr >= start && (void *)addr < start + size); -+} -+ -+static inline int within_module_core_rx(unsigned long addr, struct module *mod) -+{ -+ return within_module_range(addr, mod->module_core_rx, mod->core_size_rx); -+} -+ -+static inline int within_module_core_rw(unsigned long addr, struct module *mod) -+{ -+ return within_module_range(addr, mod->module_core_rw, mod->core_size_rw); -+} -+ -+static inline int within_module_init_rx(unsigned long addr, struct module *mod) -+{ -+ return within_module_range(addr, mod->module_init_rx, mod->init_size_rx); -+} -+ -+static inline int within_module_init_rw(unsigned long addr, struct module *mod) -+{ -+ return within_module_range(addr, mod->module_init_rw, mod->init_size_rw); -+} -+ - static inline int within_module_core(unsigned long addr, struct module *mod) - { -- return (unsigned long)mod->module_core <= addr && -- addr < (unsigned long)mod->module_core + mod->core_size; -+ return within_module_core_rx(addr, mod) || within_module_core_rw(addr, mod); - } - - static inline int within_module_init(unsigned long addr, struct module *mod) - { -- return (unsigned long)mod->module_init <= addr && -- addr < (unsigned long)mod->module_init + mod->init_size; -+ return within_module_init_rx(addr, mod) || within_module_init_rw(addr, mod); - } - - /* Search for module by name: must hold module_mutex. */ -diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h -index b2be02e..72d2f78 100644 ---- a/include/linux/moduleloader.h -+++ b/include/linux/moduleloader.h -@@ -23,11 +23,23 @@ unsigned int arch_mod_section_prepend(struct module *mod, unsigned int section); - - /* Allocator used for allocating struct module, core sections and init - sections. Returns NULL on failure. */ --void *module_alloc(unsigned long size); -+void *module_alloc(unsigned long size) __size_overflow(1); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+void *module_alloc_exec(unsigned long size) __size_overflow(1); -+#else -+#define module_alloc_exec(x) module_alloc(x) -+#endif - - /* Free memory returned from module_alloc. */ - void module_free(struct module *mod, void *module_region); - -+#ifdef CONFIG_PAX_KERNEXEC -+void module_free_exec(struct module *mod, void *module_region); -+#else -+#define module_free_exec(x, y) module_free((x), (y)) -+#endif -+ - /* Apply the given relocation to the (simplified) ELF. Return -error - or 0. */ - int apply_relocate(Elf_Shdr *sechdrs, -diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h -index 944bc18..042d291 100644 ---- a/include/linux/moduleparam.h -+++ b/include/linux/moduleparam.h -@@ -286,7 +286,7 @@ static inline void __kernel_param_unlock(void) - * @len is usually just sizeof(string). - */ - #define module_param_string(name, string, len, perm) \ -- static const struct kparam_string __param_string_##name \ -+ static const struct kparam_string __param_string_##name __used \ - = { len, string }; \ - __module_param_call(MODULE_PARAM_PREFIX, name, \ - &param_ops_string, \ -@@ -424,7 +424,7 @@ extern int param_set_bint(const char *val, const struct kernel_param *kp); - */ - #define module_param_array_named(name, array, type, nump, perm) \ - param_check_##type(name, &(array)[0]); \ -- static const struct kparam_array __param_arr_##name \ -+ static const struct kparam_array __param_arr_##name __used \ - = { .max = ARRAY_SIZE(array), .num = nump, \ - .ops = &param_ops_##type, \ - .elemsize = sizeof(array[0]), .elem = array }; \ -diff --git a/include/linux/namei.h b/include/linux/namei.h -index ffc0213..2c1f2cb 100644 ---- a/include/linux/namei.h -+++ b/include/linux/namei.h -@@ -24,7 +24,7 @@ struct nameidata { - unsigned seq; - int last_type; - unsigned depth; -- char *saved_names[MAX_NESTED_LINKS + 1]; -+ const char *saved_names[MAX_NESTED_LINKS + 1]; - - /* Intent data */ - union { -@@ -94,12 +94,12 @@ extern int follow_up(struct path *); - extern struct dentry *lock_rename(struct dentry *, struct dentry *); - extern void unlock_rename(struct dentry *, struct dentry *); - --static inline void nd_set_link(struct nameidata *nd, char *path) -+static inline void nd_set_link(struct nameidata *nd, const char *path) - { - nd->saved_names[nd->depth] = path; - } - --static inline char *nd_get_link(struct nameidata *nd) -+static inline const char *nd_get_link(const struct nameidata *nd) - { - return nd->saved_names[nd->depth]; - } -diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h -index 33900a5..2072000 100644 ---- a/include/linux/netdevice.h -+++ b/include/linux/netdevice.h -@@ -1003,6 +1003,7 @@ struct net_device_ops { - int (*ndo_neigh_construct)(struct neighbour *n); - void (*ndo_neigh_destroy)(struct neighbour *n); - }; -+typedef struct net_device_ops __no_const net_device_ops_no_const; - - /* - * The DEVICE structure. -@@ -1064,7 +1065,7 @@ struct net_device { - int iflink; - - struct net_device_stats stats; -- atomic_long_t rx_dropped; /* dropped packets by core network -+ atomic_long_unchecked_t rx_dropped; /* dropped packets by core network - * Do not use this in drivers. - */ - -diff --git a/include/linux/netfilter/xt_gradm.h b/include/linux/netfilter/xt_gradm.h -new file mode 100644 -index 0000000..33f4af8 ---- /dev/null -+++ b/include/linux/netfilter/xt_gradm.h -@@ -0,0 +1,9 @@ -+#ifndef _LINUX_NETFILTER_XT_GRADM_H -+#define _LINUX_NETFILTER_XT_GRADM_H 1 -+ -+struct xt_gradm_mtinfo { -+ __u16 flags; -+ __u16 invflags; -+}; -+ -+#endif -diff --git a/include/linux/of_pdt.h b/include/linux/of_pdt.h -index c65a18a..0c05f3a 100644 ---- a/include/linux/of_pdt.h -+++ b/include/linux/of_pdt.h -@@ -32,7 +32,7 @@ struct of_pdt_ops { - - /* return 0 on success; fill in 'len' with number of bytes in path */ - int (*pkg2path)(phandle node, char *buf, const int buflen, int *len); --}; -+} __no_const; - - extern void *prom_early_alloc(unsigned long size); - -diff --git a/include/linux/oprofile.h b/include/linux/oprofile.h -index a4c5624..79d6d88 100644 ---- a/include/linux/oprofile.h -+++ b/include/linux/oprofile.h -@@ -139,9 +139,9 @@ int oprofilefs_create_ulong(struct super_block * sb, struct dentry * root, - int oprofilefs_create_ro_ulong(struct super_block * sb, struct dentry * root, - char const * name, ulong * val); - --/** Create a file for read-only access to an atomic_t. */ -+/** Create a file for read-only access to an atomic_unchecked_t. */ - int oprofilefs_create_ro_atomic(struct super_block * sb, struct dentry * root, -- char const * name, atomic_t * val); -+ char const * name, atomic_unchecked_t * val); - - /** create a directory */ - struct dentry * oprofilefs_mkdir(struct super_block * sb, struct dentry * root, -diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h -index ddbb6a9..be1680e 100644 ---- a/include/linux/perf_event.h -+++ b/include/linux/perf_event.h -@@ -879,8 +879,8 @@ struct perf_event { - - enum perf_event_active_state state; - unsigned int attach_state; -- local64_t count; -- atomic64_t child_count; -+ local64_t count; /* PaX: fix it one day */ -+ atomic64_unchecked_t child_count; - - /* - * These are the total time in nanoseconds that the event -@@ -931,8 +931,8 @@ struct perf_event { - * These accumulate total time (in nanoseconds) that children - * events have been enabled and running, respectively. - */ -- atomic64_t child_total_time_enabled; -- atomic64_t child_total_time_running; -+ atomic64_unchecked_t child_total_time_enabled; -+ atomic64_unchecked_t child_total_time_running; - - /* - * Protect attach/detach and child_list: -diff --git a/include/linux/personality.h b/include/linux/personality.h -index 8fc7dd1a..c19d89e 100644 ---- a/include/linux/personality.h -+++ b/include/linux/personality.h -@@ -44,6 +44,7 @@ enum { - #define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC | \ - ADDR_NO_RANDOMIZE | \ - ADDR_COMPAT_LAYOUT | \ -+ ADDR_LIMIT_3GB | \ - MMAP_PAGE_ZERO) - - /* -diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h -index e1ac1ce..0675fed 100644 ---- a/include/linux/pipe_fs_i.h -+++ b/include/linux/pipe_fs_i.h -@@ -45,9 +45,9 @@ struct pipe_buffer { - struct pipe_inode_info { - wait_queue_head_t wait; - unsigned int nrbufs, curbuf, buffers; -- unsigned int readers; -- unsigned int writers; -- unsigned int waiting_writers; -+ atomic_t readers; -+ atomic_t writers; -+ atomic_t waiting_writers; - unsigned int r_counter; - unsigned int w_counter; - struct page *tmp_page; -diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h -index 609daae..5392427 100644 ---- a/include/linux/pm_runtime.h -+++ b/include/linux/pm_runtime.h -@@ -97,7 +97,7 @@ static inline bool pm_runtime_callbacks_present(struct device *dev) - - static inline void pm_runtime_mark_last_busy(struct device *dev) - { -- ACCESS_ONCE(dev->power.last_busy) = jiffies; -+ ACCESS_ONCE_RW(dev->power.last_busy) = jiffies; - } - - #else /* !CONFIG_PM_RUNTIME */ -diff --git a/include/linux/poison.h b/include/linux/poison.h -index 2110a81..13a11bb 100644 ---- a/include/linux/poison.h -+++ b/include/linux/poison.h -@@ -19,8 +19,8 @@ - * under normal circumstances, used to verify that nobody uses - * non-initialized list entries. - */ --#define LIST_POISON1 ((void *) 0x00100100 + POISON_POINTER_DELTA) --#define LIST_POISON2 ((void *) 0x00200200 + POISON_POINTER_DELTA) -+#define LIST_POISON1 ((void *) (long)0xFFFFFF01) -+#define LIST_POISON2 ((void *) (long)0xFFFFFF02) - - /********** include/linux/timer.h **********/ - /* -diff --git a/include/linux/preempt.h b/include/linux/preempt.h -index 5a710b9..0b0dab9 100644 ---- a/include/linux/preempt.h -+++ b/include/linux/preempt.h -@@ -126,7 +126,7 @@ struct preempt_ops { - void (*sched_in)(struct preempt_notifier *notifier, int cpu); - void (*sched_out)(struct preempt_notifier *notifier, - struct task_struct *next); --}; -+} __no_const; - - /** - * preempt_notifier - key for installing preemption notifiers -diff --git a/include/linux/printk.h b/include/linux/printk.h -index 0525927..a5388b6 100644 ---- a/include/linux/printk.h -+++ b/include/linux/printk.h -@@ -94,6 +94,8 @@ void early_printk(const char *fmt, ...); - extern int printk_needs_cpu(int cpu); - extern void printk_tick(void); - -+extern int kptr_restrict; -+ - #ifdef CONFIG_PRINTK - asmlinkage __printf(1, 0) - int vprintk(const char *fmt, va_list args); -@@ -117,7 +119,6 @@ extern bool printk_timed_ratelimit(unsigned long *caller_jiffies, - - extern int printk_delay_msec; - extern int dmesg_restrict; --extern int kptr_restrict; - - void log_buf_kexec_setup(void); - void __init setup_log_buf(int early); -diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h -index 85c5073..51fac8b 100644 ---- a/include/linux/proc_fs.h -+++ b/include/linux/proc_fs.h -@@ -155,6 +155,18 @@ static inline struct proc_dir_entry *proc_create(const char *name, umode_t mode, - return proc_create_data(name, mode, parent, proc_fops, NULL); - } - -+static inline struct proc_dir_entry *proc_create_grsec(const char *name, umode_t mode, -+ struct proc_dir_entry *parent, const struct file_operations *proc_fops) -+{ -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ return proc_create_data(name, S_IRUSR, parent, proc_fops, NULL); -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ return proc_create_data(name, S_IRUSR | S_IRGRP, parent, proc_fops, NULL); -+#else -+ return proc_create_data(name, mode, parent, proc_fops, NULL); -+#endif -+} -+ - static inline struct proc_dir_entry *create_proc_read_entry(const char *name, - umode_t mode, struct proc_dir_entry *base, - read_proc_t *read_proc, void * data) -@@ -258,7 +270,7 @@ union proc_op { - int (*proc_show)(struct seq_file *m, - struct pid_namespace *ns, struct pid *pid, - struct task_struct *task); --}; -+} __no_const; - - struct ctl_table_header; - struct ctl_table; -diff --git a/include/linux/random.h b/include/linux/random.h -index 8f74538..02a1012 100644 ---- a/include/linux/random.h -+++ b/include/linux/random.h -@@ -69,12 +69,17 @@ void srandom32(u32 seed); - - u32 prandom32(struct rnd_state *); - -+static inline unsigned long pax_get_random_long(void) -+{ -+ return random32() + (sizeof(long) > 4 ? (unsigned long)random32() << 32 : 0); -+} -+ - /* - * Handle minimum values for seeds - */ - static inline u32 __seed(u32 x, u32 m) - { -- return (x < m) ? x + m : x; -+ return (x <= m) ? x + m + 1 : x; - } - - /** -diff --git a/include/linux/reboot.h b/include/linux/reboot.h -index e0879a7..a12f962 100644 ---- a/include/linux/reboot.h -+++ b/include/linux/reboot.h -@@ -52,9 +52,9 @@ extern int unregister_reboot_notifier(struct notifier_block *); - * Architecture-specific implementations of sys_reboot commands. - */ - --extern void machine_restart(char *cmd); --extern void machine_halt(void); --extern void machine_power_off(void); -+extern void machine_restart(char *cmd) __noreturn; -+extern void machine_halt(void) __noreturn; -+extern void machine_power_off(void) __noreturn; - - extern void machine_shutdown(void); - struct pt_regs; -@@ -65,9 +65,9 @@ extern void machine_crash_shutdown(struct pt_regs *); - */ - - extern void kernel_restart_prepare(char *cmd); --extern void kernel_restart(char *cmd); --extern void kernel_halt(void); --extern void kernel_power_off(void); -+extern void kernel_restart(char *cmd) __noreturn; -+extern void kernel_halt(void) __noreturn; -+extern void kernel_power_off(void) __noreturn; - - extern int C_A_D; /* for sysctl */ - void ctrl_alt_del(void); -@@ -81,7 +81,7 @@ extern int orderly_poweroff(bool force); - * Emergency restart, callable from an interrupt handler. - */ - --extern void emergency_restart(void); -+extern void emergency_restart(void) __noreturn; - #include <asm/emergency-restart.h> - - #endif -diff --git a/include/linux/relay.h b/include/linux/relay.h -index 91cacc3..b55ff74 100644 ---- a/include/linux/relay.h -+++ b/include/linux/relay.h -@@ -160,7 +160,7 @@ struct rchan_callbacks - * The callback should return 0 if successful, negative if not. - */ - int (*remove_buf_file)(struct dentry *dentry); --}; -+} __no_const; - - /* - * CONFIG_RELAY kernel API, kernel/relay.c -diff --git a/include/linux/rfkill.h b/include/linux/rfkill.h -index 6fdf027..ff72610 100644 ---- a/include/linux/rfkill.h -+++ b/include/linux/rfkill.h -@@ -147,6 +147,7 @@ struct rfkill_ops { - void (*query)(struct rfkill *rfkill, void *data); - int (*set_block)(void *data, bool blocked); - }; -+typedef struct rfkill_ops __no_const rfkill_ops_no_const; - - #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) - /** -diff --git a/include/linux/rio.h b/include/linux/rio.h -index 4d50611..c6858a2 100644 ---- a/include/linux/rio.h -+++ b/include/linux/rio.h -@@ -315,7 +315,7 @@ struct rio_ops { - int mbox, void *buffer, size_t len); - int (*add_inb_buffer)(struct rio_mport *mport, int mbox, void *buf); - void *(*get_inb_message)(struct rio_mport *mport, int mbox); --}; -+} __no_const; - - #define RIO_RESOURCE_MEM 0x00000100 - #define RIO_RESOURCE_DOORBELL 0x00000200 -diff --git a/include/linux/rmap.h b/include/linux/rmap.h -index fd07c45..4676b8e 100644 ---- a/include/linux/rmap.h -+++ b/include/linux/rmap.h -@@ -119,9 +119,9 @@ static inline void anon_vma_unlock(struct anon_vma *anon_vma) - void anon_vma_init(void); /* create anon_vma_cachep */ - int anon_vma_prepare(struct vm_area_struct *); - void unlink_anon_vmas(struct vm_area_struct *); --int anon_vma_clone(struct vm_area_struct *, struct vm_area_struct *); -+int anon_vma_clone(struct vm_area_struct *, const struct vm_area_struct *); - void anon_vma_moveto_tail(struct vm_area_struct *); --int anon_vma_fork(struct vm_area_struct *, struct vm_area_struct *); -+int anon_vma_fork(struct vm_area_struct *, const struct vm_area_struct *); - - static inline void anon_vma_merge(struct vm_area_struct *vma, - struct vm_area_struct *next) -diff --git a/include/linux/sched.h b/include/linux/sched.h -index 81a173c..85ccd8f 100644 ---- a/include/linux/sched.h -+++ b/include/linux/sched.h -@@ -100,6 +100,7 @@ struct bio_list; - struct fs_struct; - struct perf_event_context; - struct blk_plug; -+struct linux_binprm; - - /* - * List of flags we want to share for kernel threads, -@@ -382,10 +383,13 @@ struct user_namespace; - #define DEFAULT_MAX_MAP_COUNT (USHRT_MAX - MAPCOUNT_ELF_CORE_MARGIN) - - extern int sysctl_max_map_count; -+extern unsigned long sysctl_heap_stack_gap; - - #include <linux/aio.h> - - #ifdef CONFIG_MMU -+extern bool check_heap_stack_gap(const struct vm_area_struct *vma, unsigned long addr, unsigned long len); -+extern unsigned long skip_heap_stack_gap(const struct vm_area_struct *vma, unsigned long len); - extern void arch_pick_mmap_layout(struct mm_struct *mm); - extern unsigned long - arch_get_unmapped_area(struct file *, unsigned long, unsigned long, -@@ -643,6 +647,17 @@ struct signal_struct { - #ifdef CONFIG_TASKSTATS - struct taskstats *stats; - #endif -+ -+#ifdef CONFIG_GRKERNSEC -+ u32 curr_ip; -+ u32 saved_ip; -+ u32 gr_saddr; -+ u32 gr_daddr; -+ u16 gr_sport; -+ u16 gr_dport; -+ u8 used_accept:1; -+#endif -+ - #ifdef CONFIG_AUDIT - unsigned audit_tty; - struct tty_audit_buf *tty_audit_buf; -@@ -726,6 +741,11 @@ struct user_struct { - struct key *session_keyring; /* UID's default session keyring */ - #endif - -+#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT) || defined(CONFIG_GRKERNSEC_BRUTE) -+ unsigned int banned; -+ unsigned long ban_expires; -+#endif -+ - /* Hash table maintenance information */ - struct hlist_node uidhash_node; - uid_t uid; -@@ -1386,8 +1406,8 @@ struct task_struct { - struct list_head thread_group; - - struct completion *vfork_done; /* for vfork() */ -- int __user *set_child_tid; /* CLONE_CHILD_SETTID */ -- int __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */ -+ pid_t __user *set_child_tid; /* CLONE_CHILD_SETTID */ -+ pid_t __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */ - - cputime_t utime, stime, utimescaled, stimescaled; - cputime_t gtime; -@@ -1403,13 +1423,6 @@ struct task_struct { - struct task_cputime cputime_expires; - struct list_head cpu_timers[3]; - --/* process credentials */ -- const struct cred __rcu *real_cred; /* objective and real subjective task -- * credentials (COW) */ -- const struct cred __rcu *cred; /* effective (overridable) subjective task -- * credentials (COW) */ -- struct cred *replacement_session_keyring; /* for KEYCTL_SESSION_TO_PARENT */ -- - char comm[TASK_COMM_LEN]; /* executable name excluding path - - access with [gs]et_task_comm (which lock - it with task_lock()) -@@ -1426,8 +1439,16 @@ struct task_struct { - #endif - /* CPU-specific state of this task */ - struct thread_struct thread; -+/* thread_info moved to task_struct */ -+#ifdef CONFIG_X86 -+ struct thread_info tinfo; -+#endif - /* filesystem information */ - struct fs_struct *fs; -+ -+ const struct cred __rcu *cred; /* effective (overridable) subjective task -+ * credentials (COW) */ -+ - /* open file information */ - struct files_struct *files; - /* namespaces */ -@@ -1469,6 +1490,11 @@ struct task_struct { - struct rt_mutex_waiter *pi_blocked_on; - #endif - -+/* process credentials */ -+ const struct cred __rcu *real_cred; /* objective and real subjective task -+ * credentials (COW) */ -+ struct cred *replacement_session_keyring; /* for KEYCTL_SESSION_TO_PARENT */ -+ - #ifdef CONFIG_DEBUG_MUTEXES - /* mutex deadlock detection */ - struct mutex_waiter *blocked_on; -@@ -1585,6 +1611,27 @@ struct task_struct { - unsigned long default_timer_slack_ns; - - struct list_head *scm_work_list; -+ -+#ifdef CONFIG_GRKERNSEC -+ /* grsecurity */ -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ u64 exec_id; -+#endif -+#ifdef CONFIG_GRKERNSEC_SETXID -+ const struct cred *delayed_cred; -+#endif -+ struct dentry *gr_chroot_dentry; -+ struct acl_subject_label *acl; -+ struct acl_role_label *role; -+ struct file *exec_file; -+ u16 acl_role_id; -+ /* is this the task that authenticated to the special role */ -+ u8 acl_sp_role; -+ u8 is_writable; -+ u8 brute; -+ u8 gr_is_chrooted; -+#endif -+ - #ifdef CONFIG_FUNCTION_GRAPH_TRACER - /* Index of current stored address in ret_stack */ - int curr_ret_stack; -@@ -1619,6 +1666,51 @@ struct task_struct { - #endif - }; - -+#define MF_PAX_PAGEEXEC 0x01000000 /* Paging based non-executable pages */ -+#define MF_PAX_EMUTRAMP 0x02000000 /* Emulate trampolines */ -+#define MF_PAX_MPROTECT 0x04000000 /* Restrict mprotect() */ -+#define MF_PAX_RANDMMAP 0x08000000 /* Randomize mmap() base */ -+/*#define MF_PAX_RANDEXEC 0x10000000*/ /* Randomize ET_EXEC base */ -+#define MF_PAX_SEGMEXEC 0x20000000 /* Segmentation based non-executable pages */ -+ -+#ifdef CONFIG_PAX_SOFTMODE -+extern int pax_softmode; -+#endif -+ -+extern int pax_check_flags(unsigned long *); -+ -+/* if tsk != current then task_lock must be held on it */ -+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR) -+static inline unsigned long pax_get_flags(struct task_struct *tsk) -+{ -+ if (likely(tsk->mm)) -+ return tsk->mm->pax_flags; -+ else -+ return 0UL; -+} -+ -+/* if tsk != current then task_lock must be held on it */ -+static inline long pax_set_flags(struct task_struct *tsk, unsigned long flags) -+{ -+ if (likely(tsk->mm)) { -+ tsk->mm->pax_flags = flags; -+ return 0; -+ } -+ return -EINVAL; -+} -+#endif -+ -+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS -+extern void pax_set_initial_flags(struct linux_binprm *bprm); -+#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS) -+extern void (*pax_set_initial_flags_func)(struct linux_binprm *bprm); -+#endif -+ -+extern void pax_report_fault(struct pt_regs *regs, void *pc, void *sp); -+extern void pax_report_insns(struct pt_regs *regs, void *pc, void *sp); -+extern void pax_report_refcount_overflow(struct pt_regs *regs); -+extern __noreturn void pax_report_usercopy(const void *ptr, unsigned long len, bool to, const char *type); -+ - /* Future-safe accessor for struct task_struct's cpus_allowed. */ - #define tsk_cpus_allowed(tsk) (&(tsk)->cpus_allowed) - -@@ -2138,7 +2230,9 @@ void yield(void); - extern struct exec_domain default_exec_domain; - - union thread_union { -+#ifndef CONFIG_X86 - struct thread_info thread_info; -+#endif - unsigned long stack[THREAD_SIZE/sizeof(long)]; - }; - -@@ -2171,6 +2265,7 @@ extern struct pid_namespace init_pid_ns; - */ - - extern struct task_struct *find_task_by_vpid(pid_t nr); -+extern struct task_struct *find_task_by_vpid_unrestricted(pid_t nr); - extern struct task_struct *find_task_by_pid_ns(pid_t nr, - struct pid_namespace *ns); - -@@ -2314,7 +2409,7 @@ extern void __cleanup_sighand(struct sighand_struct *); - extern void exit_itimers(struct signal_struct *); - extern void flush_itimer_signals(void); - --extern void do_group_exit(int); -+extern __noreturn void do_group_exit(int); - - extern void daemonize(const char *, ...); - extern int allow_signal(int); -@@ -2515,13 +2610,17 @@ static inline unsigned long *end_of_stack(struct task_struct *p) - - #endif - --static inline int object_is_on_stack(void *obj) -+static inline int object_starts_on_stack(void *obj) - { -- void *stack = task_stack_page(current); -+ const void *stack = task_stack_page(current); - - return (obj >= stack) && (obj < (stack + THREAD_SIZE)); - } - -+#ifdef CONFIG_PAX_USERCOPY -+extern int object_is_on_stack(const void *obj, unsigned long len); -+#endif -+ - extern void thread_info_cache_init(void); - - #ifdef CONFIG_DEBUG_STACK_USAGE -diff --git a/include/linux/screen_info.h b/include/linux/screen_info.h -index 899fbb4..1cb4138 100644 ---- a/include/linux/screen_info.h -+++ b/include/linux/screen_info.h -@@ -43,7 +43,8 @@ struct screen_info { - __u16 pages; /* 0x32 */ - __u16 vesa_attributes; /* 0x34 */ - __u32 capabilities; /* 0x36 */ -- __u8 _reserved[6]; /* 0x3a */ -+ __u16 vesapm_size; /* 0x3a */ -+ __u8 _reserved[4]; /* 0x3c */ - } __attribute__((packed)); - - #define VIDEO_TYPE_MDA 0x10 /* Monochrome Text Display */ -diff --git a/include/linux/security.h b/include/linux/security.h -index 673afbb..2b7454b 100644 ---- a/include/linux/security.h -+++ b/include/linux/security.h -@@ -26,6 +26,7 @@ - #include <linux/capability.h> - #include <linux/slab.h> - #include <linux/err.h> -+#include <linux/grsecurity.h> - - struct linux_binprm; - struct cred; -diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h -index fc61854..d7c490b 100644 ---- a/include/linux/seq_file.h -+++ b/include/linux/seq_file.h -@@ -25,6 +25,9 @@ struct seq_file { - struct mutex lock; - const struct seq_operations *op; - int poll_event; -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ u64 exec_id; -+#endif - void *private; - }; - -@@ -34,6 +37,7 @@ struct seq_operations { - void * (*next) (struct seq_file *m, void *v, loff_t *pos); - int (*show) (struct seq_file *m, void *v); - }; -+typedef struct seq_operations __no_const seq_operations_no_const; - - #define SEQ_SKIP 1 - -diff --git a/include/linux/shm.h b/include/linux/shm.h -index 92808b8..c28cac4 100644 ---- a/include/linux/shm.h -+++ b/include/linux/shm.h -@@ -98,6 +98,10 @@ struct shmid_kernel /* private to the kernel */ - - /* The task created the shm object. NULL if the task is dead. */ - struct task_struct *shm_creator; -+#ifdef CONFIG_GRKERNSEC -+ time_t shm_createtime; -+ pid_t shm_lapid; -+#endif - }; - - /* shm_mode upper byte flags */ -diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h -index c168907..c7756db 100644 ---- a/include/linux/skbuff.h -+++ b/include/linux/skbuff.h -@@ -666,7 +666,7 @@ static inline struct skb_shared_hwtstamps *skb_hwtstamps(struct sk_buff *skb) - */ - static inline int skb_queue_empty(const struct sk_buff_head *list) - { -- return list->next == (struct sk_buff *)list; -+ return list->next == (const struct sk_buff *)list; - } - - /** -@@ -679,7 +679,7 @@ static inline int skb_queue_empty(const struct sk_buff_head *list) - static inline bool skb_queue_is_last(const struct sk_buff_head *list, - const struct sk_buff *skb) - { -- return skb->next == (struct sk_buff *)list; -+ return skb->next == (const struct sk_buff *)list; - } - - /** -@@ -692,7 +692,7 @@ static inline bool skb_queue_is_last(const struct sk_buff_head *list, - static inline bool skb_queue_is_first(const struct sk_buff_head *list, - const struct sk_buff *skb) - { -- return skb->prev == (struct sk_buff *)list; -+ return skb->prev == (const struct sk_buff *)list; - } - - /** -@@ -1587,7 +1587,7 @@ static inline int pskb_network_may_pull(struct sk_buff *skb, unsigned int len) - * NET_IP_ALIGN(2) + ethernet_header(14) + IP_header(20/40) + ports(8) - */ - #ifndef NET_SKB_PAD --#define NET_SKB_PAD max(32, L1_CACHE_BYTES) -+#define NET_SKB_PAD max(_AC(32,UL), L1_CACHE_BYTES) - #endif - - extern int ___pskb_trim(struct sk_buff *skb, unsigned int len); -diff --git a/include/linux/slab.h b/include/linux/slab.h -index a595dce..c403597 100644 ---- a/include/linux/slab.h -+++ b/include/linux/slab.h -@@ -11,12 +11,20 @@ - - #include <linux/gfp.h> - #include <linux/types.h> -+#include <linux/err.h> - - /* - * Flags to pass to kmem_cache_create(). - * The ones marked DEBUG are only valid if CONFIG_SLAB_DEBUG is set. - */ - #define SLAB_DEBUG_FREE 0x00000100UL /* DEBUG: Perform (expensive) checks on free */ -+ -+#ifdef CONFIG_PAX_USERCOPY -+#define SLAB_USERCOPY 0x00000200UL /* PaX: Allow copying objs to/from userland */ -+#else -+#define SLAB_USERCOPY 0x00000000UL -+#endif -+ - #define SLAB_RED_ZONE 0x00000400UL /* DEBUG: Red zone objs in a cache */ - #define SLAB_POISON 0x00000800UL /* DEBUG: Poison objects */ - #define SLAB_HWCACHE_ALIGN 0x00002000UL /* Align objs on cache lines */ -@@ -87,10 +95,13 @@ - * ZERO_SIZE_PTR can be passed to kfree though in the same way that NULL can. - * Both make kfree a no-op. - */ --#define ZERO_SIZE_PTR ((void *)16) -+#define ZERO_SIZE_PTR \ -+({ \ -+ BUILD_BUG_ON(!(MAX_ERRNO & ~PAGE_MASK));\ -+ (void *)(-MAX_ERRNO-1L); \ -+}) - --#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) <= \ -- (unsigned long)ZERO_SIZE_PTR) -+#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) - 1 >= (unsigned long)ZERO_SIZE_PTR - 1) - - /* - * struct kmem_cache related prototypes -@@ -161,6 +172,7 @@ void * __must_check krealloc(const void *, size_t, gfp_t); - void kfree(const void *); - void kzfree(const void *); - size_t ksize(const void *); -+void check_object_size(const void *ptr, unsigned long n, bool to); - - /* - * Allocator specific definitions. These are mainly used to establish optimized -@@ -240,6 +252,7 @@ size_t ksize(const void *); - * for general use, and so are not documented here. For a full list of - * potential flags, always refer to linux/gfp.h. - */ -+static void *kmalloc_array(size_t n, size_t size, gfp_t flags) __size_overflow(1, 2); - static inline void *kmalloc_array(size_t n, size_t size, gfp_t flags) - { - if (size != 0 && n > ULONG_MAX / size) -@@ -298,7 +311,7 @@ static inline void *kmem_cache_alloc_node(struct kmem_cache *cachep, - */ - #if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB) || \ - (defined(CONFIG_SLAB) && defined(CONFIG_TRACING)) --extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long); -+extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long) __size_overflow(1); - #define kmalloc_track_caller(size, flags) \ - __kmalloc_track_caller(size, flags, _RET_IP_) - #else -@@ -317,7 +330,7 @@ extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long); - */ - #if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB) || \ - (defined(CONFIG_SLAB) && defined(CONFIG_TRACING)) --extern void *__kmalloc_node_track_caller(size_t, gfp_t, int, unsigned long); -+extern void *__kmalloc_node_track_caller(size_t, gfp_t, int, unsigned long) __size_overflow(1); - #define kmalloc_node_track_caller(size, flags, node) \ - __kmalloc_node_track_caller(size, flags, node, \ - _RET_IP_) -diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h -index fbd1117..d4d8ef8 100644 ---- a/include/linux/slab_def.h -+++ b/include/linux/slab_def.h -@@ -66,10 +66,10 @@ struct kmem_cache { - unsigned long node_allocs; - unsigned long node_frees; - unsigned long node_overflow; -- atomic_t allochit; -- atomic_t allocmiss; -- atomic_t freehit; -- atomic_t freemiss; -+ atomic_unchecked_t allochit; -+ atomic_unchecked_t allocmiss; -+ atomic_unchecked_t freehit; -+ atomic_unchecked_t freemiss; - - /* - * If debugging is enabled, then the allocator can add additional -@@ -107,7 +107,7 @@ struct cache_sizes { - extern struct cache_sizes malloc_sizes[]; - - void *kmem_cache_alloc(struct kmem_cache *, gfp_t); --void *__kmalloc(size_t size, gfp_t flags); -+void *__kmalloc(size_t size, gfp_t flags) __size_overflow(1); - - #ifdef CONFIG_TRACING - extern void *kmem_cache_alloc_trace(size_t size, -@@ -160,7 +160,7 @@ found: - } - - #ifdef CONFIG_NUMA --extern void *__kmalloc_node(size_t size, gfp_t flags, int node); -+extern void *__kmalloc_node(size_t size, gfp_t flags, int node) __size_overflow(1); - extern void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node); - - #ifdef CONFIG_TRACING -diff --git a/include/linux/slob_def.h b/include/linux/slob_def.h -index 0ec00b3..39cb7fc 100644 ---- a/include/linux/slob_def.h -+++ b/include/linux/slob_def.h -@@ -9,7 +9,7 @@ static __always_inline void *kmem_cache_alloc(struct kmem_cache *cachep, - return kmem_cache_alloc_node(cachep, flags, -1); - } - --void *__kmalloc_node(size_t size, gfp_t flags, int node); -+void *__kmalloc_node(size_t size, gfp_t flags, int node) __size_overflow(1); - - static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node) - { -@@ -29,6 +29,7 @@ static __always_inline void *kmalloc(size_t size, gfp_t flags) - return __kmalloc_node(size, flags, -1); - } - -+static __always_inline void *__kmalloc(size_t size, gfp_t flags) __size_overflow(1); - static __always_inline void *__kmalloc(size_t size, gfp_t flags) - { - return kmalloc(size, flags); -diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h -index c2f8c8b..be9e036 100644 ---- a/include/linux/slub_def.h -+++ b/include/linux/slub_def.h -@@ -92,7 +92,7 @@ struct kmem_cache { - struct kmem_cache_order_objects max; - struct kmem_cache_order_objects min; - gfp_t allocflags; /* gfp flags to use on each alloc */ -- int refcount; /* Refcount for slab cache destroy */ -+ atomic_t refcount; /* Refcount for slab cache destroy */ - void (*ctor)(void *); - int inuse; /* Offset to metadata */ - int align; /* Alignment */ -@@ -153,6 +153,7 @@ extern struct kmem_cache *kmalloc_caches[SLUB_PAGE_SHIFT]; - * Sorry that the following has to be that ugly but some versions of GCC - * have trouble with constant propagation and loops. - */ -+static __always_inline int kmalloc_index(size_t size) __size_overflow(1); - static __always_inline int kmalloc_index(size_t size) - { - if (!size) -@@ -218,7 +219,7 @@ static __always_inline struct kmem_cache *kmalloc_slab(size_t size) - } - - void *kmem_cache_alloc(struct kmem_cache *, gfp_t); --void *__kmalloc(size_t size, gfp_t flags); -+void *__kmalloc(size_t size, gfp_t flags) __alloc_size(1) __size_overflow(1); - - static __always_inline void * - kmalloc_order(size_t size, gfp_t flags, unsigned int order) -@@ -259,6 +260,7 @@ kmalloc_order_trace(size_t size, gfp_t flags, unsigned int order) - } - #endif - -+static __always_inline void *kmalloc_large(size_t size, gfp_t flags) __size_overflow(1); - static __always_inline void *kmalloc_large(size_t size, gfp_t flags) - { - unsigned int order = get_order(size); -@@ -284,7 +286,7 @@ static __always_inline void *kmalloc(size_t size, gfp_t flags) - } - - #ifdef CONFIG_NUMA --void *__kmalloc_node(size_t size, gfp_t flags, int node); -+void *__kmalloc_node(size_t size, gfp_t flags, int node) __size_overflow(1); - void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node); - - #ifdef CONFIG_TRACING -diff --git a/include/linux/sonet.h b/include/linux/sonet.h -index de8832d..0147b46 100644 ---- a/include/linux/sonet.h -+++ b/include/linux/sonet.h -@@ -61,7 +61,7 @@ struct sonet_stats { - #include <linux/atomic.h> - - struct k_sonet_stats { --#define __HANDLE_ITEM(i) atomic_t i -+#define __HANDLE_ITEM(i) atomic_unchecked_t i - __SONET_ITEMS - #undef __HANDLE_ITEM - }; -diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h -index 523547e..2cb7140 100644 ---- a/include/linux/sunrpc/clnt.h -+++ b/include/linux/sunrpc/clnt.h -@@ -174,9 +174,9 @@ static inline unsigned short rpc_get_port(const struct sockaddr *sap) - { - switch (sap->sa_family) { - case AF_INET: -- return ntohs(((struct sockaddr_in *)sap)->sin_port); -+ return ntohs(((const struct sockaddr_in *)sap)->sin_port); - case AF_INET6: -- return ntohs(((struct sockaddr_in6 *)sap)->sin6_port); -+ return ntohs(((const struct sockaddr_in6 *)sap)->sin6_port); - } - return 0; - } -@@ -209,7 +209,7 @@ static inline bool __rpc_cmp_addr4(const struct sockaddr *sap1, - static inline bool __rpc_copy_addr4(struct sockaddr *dst, - const struct sockaddr *src) - { -- const struct sockaddr_in *ssin = (struct sockaddr_in *) src; -+ const struct sockaddr_in *ssin = (const struct sockaddr_in *) src; - struct sockaddr_in *dsin = (struct sockaddr_in *) dst; - - dsin->sin_family = ssin->sin_family; -@@ -312,7 +312,7 @@ static inline u32 rpc_get_scope_id(const struct sockaddr *sa) - if (sa->sa_family != AF_INET6) - return 0; - -- return ((struct sockaddr_in6 *) sa)->sin6_scope_id; -+ return ((const struct sockaddr_in6 *) sa)->sin6_scope_id; - } - - #endif /* __KERNEL__ */ -diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h -index dc0c3cc..8503fb6 100644 ---- a/include/linux/sunrpc/sched.h -+++ b/include/linux/sunrpc/sched.h -@@ -106,6 +106,7 @@ struct rpc_call_ops { - void (*rpc_count_stats)(struct rpc_task *, void *); - void (*rpc_release)(void *); - }; -+typedef struct rpc_call_ops __no_const rpc_call_ops_no_const; - - struct rpc_task_setup { - struct rpc_task *task; -diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h -index 0b8e3e6..33e0a01 100644 ---- a/include/linux/sunrpc/svc_rdma.h -+++ b/include/linux/sunrpc/svc_rdma.h -@@ -53,15 +53,15 @@ extern unsigned int svcrdma_ord; - extern unsigned int svcrdma_max_requests; - extern unsigned int svcrdma_max_req_size; - --extern atomic_t rdma_stat_recv; --extern atomic_t rdma_stat_read; --extern atomic_t rdma_stat_write; --extern atomic_t rdma_stat_sq_starve; --extern atomic_t rdma_stat_rq_starve; --extern atomic_t rdma_stat_rq_poll; --extern atomic_t rdma_stat_rq_prod; --extern atomic_t rdma_stat_sq_poll; --extern atomic_t rdma_stat_sq_prod; -+extern atomic_unchecked_t rdma_stat_recv; -+extern atomic_unchecked_t rdma_stat_read; -+extern atomic_unchecked_t rdma_stat_write; -+extern atomic_unchecked_t rdma_stat_sq_starve; -+extern atomic_unchecked_t rdma_stat_rq_starve; -+extern atomic_unchecked_t rdma_stat_rq_poll; -+extern atomic_unchecked_t rdma_stat_rq_prod; -+extern atomic_unchecked_t rdma_stat_sq_poll; -+extern atomic_unchecked_t rdma_stat_sq_prod; - - #define RPCRDMA_VERSION 1 - -diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h -index c34b4c8..a65b67d 100644 ---- a/include/linux/sysctl.h -+++ b/include/linux/sysctl.h -@@ -155,7 +155,11 @@ enum - KERN_PANIC_ON_NMI=76, /* int: whether we will panic on an unrecovered */ - }; - -- -+#ifdef CONFIG_PAX_SOFTMODE -+enum { -+ PAX_SOFTMODE=1 /* PaX: disable/enable soft mode */ -+}; -+#endif - - /* CTL_VM names: */ - enum -@@ -948,6 +952,8 @@ typedef int proc_handler (struct ctl_table *ctl, int write, - - extern int proc_dostring(struct ctl_table *, int, - void __user *, size_t *, loff_t *); -+extern int proc_dostring_modpriv(struct ctl_table *, int, -+ void __user *, size_t *, loff_t *); - extern int proc_dointvec(struct ctl_table *, int, - void __user *, size_t *, loff_t *); - extern int proc_dointvec_minmax(struct ctl_table *, int, -diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h -index ff7dc08..893e1bd 100644 ---- a/include/linux/tty_ldisc.h -+++ b/include/linux/tty_ldisc.h -@@ -148,7 +148,7 @@ struct tty_ldisc_ops { - - struct module *owner; - -- int refcount; -+ atomic_t refcount; - }; - - struct tty_ldisc { -diff --git a/include/linux/types.h b/include/linux/types.h -index 7f480db..175c256 100644 ---- a/include/linux/types.h -+++ b/include/linux/types.h -@@ -220,10 +220,26 @@ typedef struct { - int counter; - } atomic_t; - -+#ifdef CONFIG_PAX_REFCOUNT -+typedef struct { -+ int counter; -+} atomic_unchecked_t; -+#else -+typedef atomic_t atomic_unchecked_t; -+#endif -+ - #ifdef CONFIG_64BIT - typedef struct { - long counter; - } atomic64_t; -+ -+#ifdef CONFIG_PAX_REFCOUNT -+typedef struct { -+ long counter; -+} atomic64_unchecked_t; -+#else -+typedef atomic64_t atomic64_unchecked_t; -+#endif - #endif - - struct list_head { -diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h -index 5ca0951..ab496a5 100644 ---- a/include/linux/uaccess.h -+++ b/include/linux/uaccess.h -@@ -76,11 +76,11 @@ static inline unsigned long __copy_from_user_nocache(void *to, - long ret; \ - mm_segment_t old_fs = get_fs(); \ - \ -- set_fs(KERNEL_DS); \ - pagefault_disable(); \ -- ret = __copy_from_user_inatomic(&(retval), (__force typeof(retval) __user *)(addr), sizeof(retval)); \ -- pagefault_enable(); \ -+ set_fs(KERNEL_DS); \ -+ ret = __copy_from_user_inatomic(&(retval), (typeof(retval) __force_user *)(addr), sizeof(retval)); \ - set_fs(old_fs); \ -+ pagefault_enable(); \ - ret; \ - }) - -diff --git a/include/linux/unaligned/access_ok.h b/include/linux/unaligned/access_ok.h -index 99c1b4d..bb94261 100644 ---- a/include/linux/unaligned/access_ok.h -+++ b/include/linux/unaligned/access_ok.h -@@ -6,32 +6,32 @@ - - static inline u16 get_unaligned_le16(const void *p) - { -- return le16_to_cpup((__le16 *)p); -+ return le16_to_cpup((const __le16 *)p); - } - - static inline u32 get_unaligned_le32(const void *p) - { -- return le32_to_cpup((__le32 *)p); -+ return le32_to_cpup((const __le32 *)p); - } - - static inline u64 get_unaligned_le64(const void *p) - { -- return le64_to_cpup((__le64 *)p); -+ return le64_to_cpup((const __le64 *)p); - } - - static inline u16 get_unaligned_be16(const void *p) - { -- return be16_to_cpup((__be16 *)p); -+ return be16_to_cpup((const __be16 *)p); - } - - static inline u32 get_unaligned_be32(const void *p) - { -- return be32_to_cpup((__be32 *)p); -+ return be32_to_cpup((const __be32 *)p); - } - - static inline u64 get_unaligned_be64(const void *p) - { -- return be64_to_cpup((__be64 *)p); -+ return be64_to_cpup((const __be64 *)p); - } - - static inline void put_unaligned_le16(u16 val, void *p) -diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h -index 547e59c..db6ad19 100644 ---- a/include/linux/usb/renesas_usbhs.h -+++ b/include/linux/usb/renesas_usbhs.h -@@ -39,7 +39,7 @@ enum { - */ - struct renesas_usbhs_driver_callback { - int (*notify_hotplug)(struct platform_device *pdev); --}; -+} __no_const; - - /* - * callback functions for platform -@@ -97,7 +97,7 @@ struct renesas_usbhs_platform_callback { - * VBUS control is needed for Host - */ - int (*set_vbus)(struct platform_device *pdev, int enable); --}; -+} __no_const; - - /* - * parameters for renesas usbhs -diff --git a/include/linux/vermagic.h b/include/linux/vermagic.h -index 6f8fbcf..8259001 100644 ---- a/include/linux/vermagic.h -+++ b/include/linux/vermagic.h -@@ -25,9 +25,35 @@ - #define MODULE_ARCH_VERMAGIC "" - #endif - -+#ifdef CONFIG_PAX_REFCOUNT -+#define MODULE_PAX_REFCOUNT "REFCOUNT " -+#else -+#define MODULE_PAX_REFCOUNT "" -+#endif -+ -+#ifdef CONSTIFY_PLUGIN -+#define MODULE_CONSTIFY_PLUGIN "CONSTIFY_PLUGIN " -+#else -+#define MODULE_CONSTIFY_PLUGIN "" -+#endif -+ -+#ifdef STACKLEAK_PLUGIN -+#define MODULE_STACKLEAK_PLUGIN "STACKLEAK_PLUGIN " -+#else -+#define MODULE_STACKLEAK_PLUGIN "" -+#endif -+ -+#ifdef CONFIG_GRKERNSEC -+#define MODULE_GRSEC "GRSEC " -+#else -+#define MODULE_GRSEC "" -+#endif -+ - #define VERMAGIC_STRING \ - UTS_RELEASE " " \ - MODULE_VERMAGIC_SMP MODULE_VERMAGIC_PREEMPT \ - MODULE_VERMAGIC_MODULE_UNLOAD MODULE_VERMAGIC_MODVERSIONS \ -- MODULE_ARCH_VERMAGIC -+ MODULE_ARCH_VERMAGIC \ -+ MODULE_PAX_REFCOUNT MODULE_CONSTIFY_PLUGIN MODULE_STACKLEAK_PLUGIN \ -+ MODULE_GRSEC - -diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h -index dcdfc2b..ec79ab5 100644 ---- a/include/linux/vmalloc.h -+++ b/include/linux/vmalloc.h -@@ -14,6 +14,11 @@ struct vm_area_struct; /* vma defining user mapping in mm_types.h */ - #define VM_USERMAP 0x00000008 /* suitable for remap_vmalloc_range */ - #define VM_VPAGES 0x00000010 /* buffer for pages was vmalloc'ed */ - #define VM_UNLIST 0x00000020 /* vm_struct is not listed in vmlist */ -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC) -+#define VM_KERNEXEC 0x00000040 /* allocate from executable kernel memory range */ -+#endif -+ - /* bits [20..32] reserved for arch specific ioremap internals */ - - /* -@@ -62,7 +67,7 @@ extern void *vmalloc_32_user(unsigned long size); - extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot); - extern void *__vmalloc_node_range(unsigned long size, unsigned long align, - unsigned long start, unsigned long end, gfp_t gfp_mask, -- pgprot_t prot, int node, void *caller); -+ pgprot_t prot, int node, void *caller) __size_overflow(1); - extern void vfree(const void *addr); - - extern void *vmap(struct page **pages, unsigned int count, -@@ -123,8 +128,8 @@ extern struct vm_struct *alloc_vm_area(size_t size, pte_t **ptes); - extern void free_vm_area(struct vm_struct *area); - - /* for /dev/kmem */ --extern long vread(char *buf, char *addr, unsigned long count); --extern long vwrite(char *buf, char *addr, unsigned long count); -+extern long vread(char *buf, char *addr, unsigned long count) __size_overflow(3); -+extern long vwrite(char *buf, char *addr, unsigned long count) __size_overflow(3); - - /* - * Internals. Dont't use.. -diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h -index 65efb92..137adbb 100644 ---- a/include/linux/vmstat.h -+++ b/include/linux/vmstat.h -@@ -87,18 +87,18 @@ static inline void vm_events_fold_cpu(int cpu) - /* - * Zone based page accounting with per cpu differentials. - */ --extern atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS]; -+extern atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS]; - - static inline void zone_page_state_add(long x, struct zone *zone, - enum zone_stat_item item) - { -- atomic_long_add(x, &zone->vm_stat[item]); -- atomic_long_add(x, &vm_stat[item]); -+ atomic_long_add_unchecked(x, &zone->vm_stat[item]); -+ atomic_long_add_unchecked(x, &vm_stat[item]); - } - - static inline unsigned long global_page_state(enum zone_stat_item item) - { -- long x = atomic_long_read(&vm_stat[item]); -+ long x = atomic_long_read_unchecked(&vm_stat[item]); - #ifdef CONFIG_SMP - if (x < 0) - x = 0; -@@ -109,7 +109,7 @@ static inline unsigned long global_page_state(enum zone_stat_item item) - static inline unsigned long zone_page_state(struct zone *zone, - enum zone_stat_item item) - { -- long x = atomic_long_read(&zone->vm_stat[item]); -+ long x = atomic_long_read_unchecked(&zone->vm_stat[item]); - #ifdef CONFIG_SMP - if (x < 0) - x = 0; -@@ -126,7 +126,7 @@ static inline unsigned long zone_page_state(struct zone *zone, - static inline unsigned long zone_page_state_snapshot(struct zone *zone, - enum zone_stat_item item) - { -- long x = atomic_long_read(&zone->vm_stat[item]); -+ long x = atomic_long_read_unchecked(&zone->vm_stat[item]); - - #ifdef CONFIG_SMP - int cpu; -@@ -221,8 +221,8 @@ static inline void __mod_zone_page_state(struct zone *zone, - - static inline void __inc_zone_state(struct zone *zone, enum zone_stat_item item) - { -- atomic_long_inc(&zone->vm_stat[item]); -- atomic_long_inc(&vm_stat[item]); -+ atomic_long_inc_unchecked(&zone->vm_stat[item]); -+ atomic_long_inc_unchecked(&vm_stat[item]); - } - - static inline void __inc_zone_page_state(struct page *page, -@@ -233,8 +233,8 @@ static inline void __inc_zone_page_state(struct page *page, - - static inline void __dec_zone_state(struct zone *zone, enum zone_stat_item item) - { -- atomic_long_dec(&zone->vm_stat[item]); -- atomic_long_dec(&vm_stat[item]); -+ atomic_long_dec_unchecked(&zone->vm_stat[item]); -+ atomic_long_dec_unchecked(&vm_stat[item]); - } - - static inline void __dec_zone_page_state(struct page *page, -diff --git a/include/linux/xattr.h b/include/linux/xattr.h -index e5d1220..ef6e406 100644 ---- a/include/linux/xattr.h -+++ b/include/linux/xattr.h -@@ -57,6 +57,11 @@ - #define XATTR_POSIX_ACL_DEFAULT "posix_acl_default" - #define XATTR_NAME_POSIX_ACL_DEFAULT XATTR_SYSTEM_PREFIX XATTR_POSIX_ACL_DEFAULT - -+/* User namespace */ -+#define XATTR_PAX_PREFIX XATTR_USER_PREFIX "pax." -+#define XATTR_PAX_FLAGS_SUFFIX "flags" -+#define XATTR_NAME_PAX_FLAGS XATTR_PAX_PREFIX XATTR_PAX_FLAGS_SUFFIX -+ - #ifdef __KERNEL__ - - #include <linux/types.h> -diff --git a/include/media/saa7146_vv.h b/include/media/saa7146_vv.h -index 4aeff96..b378cdc 100644 ---- a/include/media/saa7146_vv.h -+++ b/include/media/saa7146_vv.h -@@ -163,7 +163,7 @@ struct saa7146_ext_vv - int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *); - - /* the extension can override this */ -- struct v4l2_ioctl_ops ops; -+ v4l2_ioctl_ops_no_const ops; - /* pointer to the saa7146 core ops */ - const struct v4l2_ioctl_ops *core_ops; - -diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h -index 96d2221..2292f89 100644 ---- a/include/media/v4l2-dev.h -+++ b/include/media/v4l2-dev.h -@@ -56,7 +56,7 @@ int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority local); - - - struct v4l2_file_operations { -- struct module *owner; -+ struct module * const owner; - ssize_t (*read) (struct file *, char __user *, size_t, loff_t *); - ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *); - unsigned int (*poll) (struct file *, struct poll_table_struct *); -@@ -71,6 +71,7 @@ struct v4l2_file_operations { - int (*open) (struct file *); - int (*release) (struct file *); - }; -+typedef struct v4l2_file_operations __no_const v4l2_file_operations_no_const; - - /* - * Newer version of video_device, handled by videodev2.c -diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h -index 3cb939c..f23c6bb 100644 ---- a/include/media/v4l2-ioctl.h -+++ b/include/media/v4l2-ioctl.h -@@ -281,7 +281,7 @@ struct v4l2_ioctl_ops { - long (*vidioc_default) (struct file *file, void *fh, - bool valid_prio, int cmd, void *arg); - }; -- -+typedef struct v4l2_ioctl_ops __no_const v4l2_ioctl_ops_no_const; - - /* v4l debugging and diagnostics */ - -diff --git a/include/net/caif/caif_hsi.h b/include/net/caif/caif_hsi.h -index 6db8ecf..8c23861 100644 ---- a/include/net/caif/caif_hsi.h -+++ b/include/net/caif/caif_hsi.h -@@ -98,7 +98,7 @@ struct cfhsi_drv { - void (*rx_done_cb) (struct cfhsi_drv *drv); - void (*wake_up_cb) (struct cfhsi_drv *drv); - void (*wake_down_cb) (struct cfhsi_drv *drv); --}; -+} __no_const; - - /* Structure implemented by HSI device. */ - struct cfhsi_dev { -diff --git a/include/net/caif/cfctrl.h b/include/net/caif/cfctrl.h -index 9e5425b..8136ffc 100644 ---- a/include/net/caif/cfctrl.h -+++ b/include/net/caif/cfctrl.h -@@ -52,7 +52,7 @@ struct cfctrl_rsp { - void (*radioset_rsp)(void); - void (*reject_rsp)(struct cflayer *layer, u8 linkid, - struct cflayer *client_layer); --}; -+} __no_const; - - /* Link Setup Parameters for CAIF-Links. */ - struct cfctrl_link_param { -@@ -101,8 +101,8 @@ struct cfctrl_request_info { - struct cfctrl { - struct cfsrvl serv; - struct cfctrl_rsp res; -- atomic_t req_seq_no; -- atomic_t rsp_seq_no; -+ atomic_unchecked_t req_seq_no; -+ atomic_unchecked_t rsp_seq_no; - struct list_head list; - /* Protects from simultaneous access to first_req list */ - spinlock_t info_list_lock; -diff --git a/include/net/flow.h b/include/net/flow.h -index 6c469db..7743b8e 100644 ---- a/include/net/flow.h -+++ b/include/net/flow.h -@@ -221,6 +221,6 @@ extern struct flow_cache_object *flow_cache_lookup( - - extern void flow_cache_flush(void); - extern void flow_cache_flush_deferred(void); --extern atomic_t flow_cache_genid; -+extern atomic_unchecked_t flow_cache_genid; - - #endif -diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h -index b94765e..053f68b 100644 ---- a/include/net/inetpeer.h -+++ b/include/net/inetpeer.h -@@ -48,8 +48,8 @@ struct inet_peer { - */ - union { - struct { -- atomic_t rid; /* Frag reception counter */ -- atomic_t ip_id_count; /* IP ID for the next packet */ -+ atomic_unchecked_t rid; /* Frag reception counter */ -+ atomic_unchecked_t ip_id_count; /* IP ID for the next packet */ - __u32 tcp_ts; - __u32 tcp_ts_stamp; - }; -@@ -115,11 +115,11 @@ static inline int inet_getid(struct inet_peer *p, int more) - more++; - inet_peer_refcheck(p); - do { -- old = atomic_read(&p->ip_id_count); -+ old = atomic_read_unchecked(&p->ip_id_count); - new = old + more; - if (!new) - new = 1; -- } while (atomic_cmpxchg(&p->ip_id_count, old, new) != old); -+ } while (atomic_cmpxchg_unchecked(&p->ip_id_count, old, new) != old); - return new; - } - -diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h -index 10422ef..662570f 100644 ---- a/include/net/ip_fib.h -+++ b/include/net/ip_fib.h -@@ -146,7 +146,7 @@ extern __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh); - - #define FIB_RES_SADDR(net, res) \ - ((FIB_RES_NH(res).nh_saddr_genid == \ -- atomic_read(&(net)->ipv4.dev_addr_genid)) ? \ -+ atomic_read_unchecked(&(net)->ipv4.dev_addr_genid)) ? \ - FIB_RES_NH(res).nh_saddr : \ - fib_info_update_nh_saddr((net), &FIB_RES_NH(res))) - #define FIB_RES_GW(res) (FIB_RES_NH(res).nh_gw) -diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h -index 72522f0..6f03a2b 100644 ---- a/include/net/ip_vs.h -+++ b/include/net/ip_vs.h -@@ -510,7 +510,7 @@ struct ip_vs_conn { - struct ip_vs_conn *control; /* Master control connection */ - atomic_t n_control; /* Number of controlled ones */ - struct ip_vs_dest *dest; /* real server */ -- atomic_t in_pkts; /* incoming packet counter */ -+ atomic_unchecked_t in_pkts; /* incoming packet counter */ - - /* packet transmitter for different forwarding methods. If it - mangles the packet, it must return NF_DROP or better NF_STOLEN, -@@ -648,7 +648,7 @@ struct ip_vs_dest { - __be16 port; /* port number of the server */ - union nf_inet_addr addr; /* IP address of the server */ - volatile unsigned flags; /* dest status flags */ -- atomic_t conn_flags; /* flags to copy to conn */ -+ atomic_unchecked_t conn_flags; /* flags to copy to conn */ - atomic_t weight; /* server weight */ - - atomic_t refcnt; /* reference counter */ -diff --git a/include/net/irda/ircomm_core.h b/include/net/irda/ircomm_core.h -index 69b610a..fe3962c 100644 ---- a/include/net/irda/ircomm_core.h -+++ b/include/net/irda/ircomm_core.h -@@ -51,7 +51,7 @@ typedef struct { - int (*connect_response)(struct ircomm_cb *, struct sk_buff *); - int (*disconnect_request)(struct ircomm_cb *, struct sk_buff *, - struct ircomm_info *); --} call_t; -+} __no_const call_t; - - struct ircomm_cb { - irda_queue_t queue; -diff --git a/include/net/irda/ircomm_tty.h b/include/net/irda/ircomm_tty.h -index 59ba38bc..d515662 100644 ---- a/include/net/irda/ircomm_tty.h -+++ b/include/net/irda/ircomm_tty.h -@@ -35,6 +35,7 @@ - #include <linux/termios.h> - #include <linux/timer.h> - #include <linux/tty.h> /* struct tty_struct */ -+#include <asm/local.h> - - #include <net/irda/irias_object.h> - #include <net/irda/ircomm_core.h> -@@ -105,8 +106,8 @@ struct ircomm_tty_cb { - unsigned short close_delay; - unsigned short closing_wait; /* time to wait before closing */ - -- int open_count; -- int blocked_open; /* # of blocked opens */ -+ local_t open_count; -+ local_t blocked_open; /* # of blocked opens */ - - /* Protect concurent access to : - * o self->open_count -diff --git a/include/net/iucv/af_iucv.h b/include/net/iucv/af_iucv.h -index cc7c197..9f2da2a 100644 ---- a/include/net/iucv/af_iucv.h -+++ b/include/net/iucv/af_iucv.h -@@ -141,7 +141,7 @@ struct iucv_sock { - struct iucv_sock_list { - struct hlist_head head; - rwlock_t lock; -- atomic_t autobind_name; -+ atomic_unchecked_t autobind_name; - }; - - unsigned int iucv_sock_poll(struct file *file, struct socket *sock, -diff --git a/include/net/neighbour.h b/include/net/neighbour.h -index 34c996f..bb3b4d4 100644 ---- a/include/net/neighbour.h -+++ b/include/net/neighbour.h -@@ -123,7 +123,7 @@ struct neigh_ops { - void (*error_report)(struct neighbour *, struct sk_buff *); - int (*output)(struct neighbour *, struct sk_buff *); - int (*connected_output)(struct neighbour *, struct sk_buff *); --}; -+} __do_const; - - struct pneigh_entry { - struct pneigh_entry *next; -diff --git a/include/net/netlink.h b/include/net/netlink.h -index f394fe5..fd073f9 100644 ---- a/include/net/netlink.h -+++ b/include/net/netlink.h -@@ -534,7 +534,7 @@ static inline void *nlmsg_get_pos(struct sk_buff *skb) - static inline void nlmsg_trim(struct sk_buff *skb, const void *mark) - { - if (mark) -- skb_trim(skb, (unsigned char *) mark - skb->data); -+ skb_trim(skb, (const unsigned char *) mark - skb->data); - } - - /** -diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h -index bbd023a..97c6d0d 100644 ---- a/include/net/netns/ipv4.h -+++ b/include/net/netns/ipv4.h -@@ -57,8 +57,8 @@ struct netns_ipv4 { - unsigned int sysctl_ping_group_range[2]; - long sysctl_tcp_mem[3]; - -- atomic_t rt_genid; -- atomic_t dev_addr_genid; -+ atomic_unchecked_t rt_genid; -+ atomic_unchecked_t dev_addr_genid; - - #ifdef CONFIG_IP_MROUTE - #ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES -diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h -index a2ef814..31a8e3f 100644 ---- a/include/net/sctp/sctp.h -+++ b/include/net/sctp/sctp.h -@@ -318,9 +318,9 @@ do { \ - - #else /* SCTP_DEBUG */ - --#define SCTP_DEBUG_PRINTK(whatever...) --#define SCTP_DEBUG_PRINTK_CONT(fmt, args...) --#define SCTP_DEBUG_PRINTK_IPADDR(whatever...) -+#define SCTP_DEBUG_PRINTK(whatever...) do {} while (0) -+#define SCTP_DEBUG_PRINTK_CONT(fmt, args...) do {} while (0) -+#define SCTP_DEBUG_PRINTK_IPADDR(whatever...) do {} while (0) - #define SCTP_ENABLE_DEBUG - #define SCTP_DISABLE_DEBUG - #define SCTP_ASSERT(expr, str, func) -diff --git a/include/net/sock.h b/include/net/sock.h -index 5a0a58a..2e3d4d0 100644 ---- a/include/net/sock.h -+++ b/include/net/sock.h -@@ -302,7 +302,7 @@ struct sock { - #ifdef CONFIG_RPS - __u32 sk_rxhash; - #endif -- atomic_t sk_drops; -+ atomic_unchecked_t sk_drops; - int sk_rcvbuf; - - struct sk_filter __rcu *sk_filter; -@@ -1691,7 +1691,7 @@ static inline void sk_nocaps_add(struct sock *sk, netdev_features_t flags) - } - - static inline int skb_do_copy_data_nocache(struct sock *sk, struct sk_buff *skb, -- char __user *from, char *to, -+ char __user *from, unsigned char *to, - int copy, int offset) - { - if (skb->ip_summed == CHECKSUM_NONE) { -diff --git a/include/net/tcp.h b/include/net/tcp.h -index f75a04d..702cf06 100644 ---- a/include/net/tcp.h -+++ b/include/net/tcp.h -@@ -1425,7 +1425,7 @@ struct tcp_seq_afinfo { - char *name; - sa_family_t family; - const struct file_operations *seq_fops; -- struct seq_operations seq_ops; -+ seq_operations_no_const seq_ops; - }; - - struct tcp_iter_state { -diff --git a/include/net/udp.h b/include/net/udp.h -index 5d606d9..e879f7b 100644 ---- a/include/net/udp.h -+++ b/include/net/udp.h -@@ -244,7 +244,7 @@ struct udp_seq_afinfo { - sa_family_t family; - struct udp_table *udp_table; - const struct file_operations *seq_fops; -- struct seq_operations seq_ops; -+ seq_operations_no_const seq_ops; - }; - - struct udp_iter_state { -diff --git a/include/net/xfrm.h b/include/net/xfrm.h -index 96239e7..c85b032 100644 ---- a/include/net/xfrm.h -+++ b/include/net/xfrm.h -@@ -505,7 +505,7 @@ struct xfrm_policy { - struct timer_list timer; - - struct flow_cache_object flo; -- atomic_t genid; -+ atomic_unchecked_t genid; - u32 priority; - u32 index; - struct xfrm_mark mark; -diff --git a/include/rdma/iw_cm.h b/include/rdma/iw_cm.h -index 1a046b1..ee0bef0 100644 ---- a/include/rdma/iw_cm.h -+++ b/include/rdma/iw_cm.h -@@ -122,7 +122,7 @@ struct iw_cm_verbs { - int backlog); - - int (*destroy_listen)(struct iw_cm_id *cm_id); --}; -+} __no_const; - - /** - * iw_create_cm_id - Create an IW CM identifier. -diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h -index 8f9dfba..610ab6c 100644 ---- a/include/scsi/libfc.h -+++ b/include/scsi/libfc.h -@@ -756,6 +756,7 @@ struct libfc_function_template { - */ - void (*disc_stop_final) (struct fc_lport *); - }; -+typedef struct libfc_function_template __no_const libfc_function_template_no_const; - - /** - * struct fc_disc - Discovery context -@@ -861,7 +862,7 @@ struct fc_lport { - struct fc_vport *vport; - - /* Operational Information */ -- struct libfc_function_template tt; -+ libfc_function_template_no_const tt; - u8 link_up; - u8 qfull; - enum fc_lport_state state; -diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h -index 6efb2e1..cdad57f 100644 ---- a/include/scsi/scsi_device.h -+++ b/include/scsi/scsi_device.h -@@ -162,9 +162,9 @@ struct scsi_device { - unsigned int max_device_blocked; /* what device_blocked counts down from */ - #define SCSI_DEFAULT_DEVICE_BLOCKED 3 - -- atomic_t iorequest_cnt; -- atomic_t iodone_cnt; -- atomic_t ioerr_cnt; -+ atomic_unchecked_t iorequest_cnt; -+ atomic_unchecked_t iodone_cnt; -+ atomic_unchecked_t ioerr_cnt; - - struct device sdev_gendev, - sdev_dev; -diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h -index 719faf1..d1154d4 100644 ---- a/include/scsi/scsi_transport_fc.h -+++ b/include/scsi/scsi_transport_fc.h -@@ -739,7 +739,7 @@ struct fc_function_template { - unsigned long show_host_system_hostname:1; - - unsigned long disable_target_scan:1; --}; -+} __do_const; - - - /** -diff --git a/include/sound/ak4xxx-adda.h b/include/sound/ak4xxx-adda.h -index 030b87c..98a6954 100644 ---- a/include/sound/ak4xxx-adda.h -+++ b/include/sound/ak4xxx-adda.h -@@ -35,7 +35,7 @@ struct snd_ak4xxx_ops { - void (*write)(struct snd_akm4xxx *ak, int chip, unsigned char reg, - unsigned char val); - void (*set_rate_val)(struct snd_akm4xxx *ak, unsigned int rate); --}; -+} __no_const; - - #define AK4XXX_IMAGE_SIZE (AK4XXX_MAX_CHIPS * 16) /* 64 bytes */ - -diff --git a/include/sound/hwdep.h b/include/sound/hwdep.h -index 8c05e47..2b5df97 100644 ---- a/include/sound/hwdep.h -+++ b/include/sound/hwdep.h -@@ -49,7 +49,7 @@ struct snd_hwdep_ops { - struct snd_hwdep_dsp_status *status); - int (*dsp_load)(struct snd_hwdep *hw, - struct snd_hwdep_dsp_image *image); --}; -+} __no_const; - - struct snd_hwdep { - struct snd_card *card; -diff --git a/include/sound/info.h b/include/sound/info.h -index 9ca1a49..aba1728 100644 ---- a/include/sound/info.h -+++ b/include/sound/info.h -@@ -44,7 +44,7 @@ struct snd_info_entry_text { - struct snd_info_buffer *buffer); - void (*write)(struct snd_info_entry *entry, - struct snd_info_buffer *buffer); --}; -+} __no_const; - - struct snd_info_entry_ops { - int (*open)(struct snd_info_entry *entry, -diff --git a/include/sound/pcm.h b/include/sound/pcm.h -index 0d11128..814178e 100644 ---- a/include/sound/pcm.h -+++ b/include/sound/pcm.h -@@ -81,6 +81,7 @@ struct snd_pcm_ops { - int (*mmap)(struct snd_pcm_substream *substream, struct vm_area_struct *vma); - int (*ack)(struct snd_pcm_substream *substream); - }; -+typedef struct snd_pcm_ops __no_const snd_pcm_ops_no_const; - - /* - * -diff --git a/include/sound/sb16_csp.h b/include/sound/sb16_csp.h -index af1b49e..a5d55a5 100644 ---- a/include/sound/sb16_csp.h -+++ b/include/sound/sb16_csp.h -@@ -146,7 +146,7 @@ struct snd_sb_csp_ops { - int (*csp_start) (struct snd_sb_csp * p, int sample_width, int channels); - int (*csp_stop) (struct snd_sb_csp * p); - int (*csp_qsound_transfer) (struct snd_sb_csp * p); --}; -+} __no_const; - - /* - * CSP private data -diff --git a/include/sound/soc.h b/include/sound/soc.h -index 2ebf787..0276839 100644 ---- a/include/sound/soc.h -+++ b/include/sound/soc.h -@@ -711,7 +711,7 @@ struct snd_soc_platform_driver { - /* platform IO - used for platform DAPM */ - unsigned int (*read)(struct snd_soc_platform *, unsigned int); - int (*write)(struct snd_soc_platform *, unsigned int, unsigned int); --}; -+} __do_const; - - struct snd_soc_platform { - const char *name; -@@ -887,7 +887,7 @@ struct snd_soc_pcm_runtime { - struct snd_soc_dai_link *dai_link; - struct mutex pcm_mutex; - enum snd_soc_pcm_subclass pcm_subclass; -- struct snd_pcm_ops ops; -+ snd_pcm_ops_no_const ops; - - unsigned int complete:1; - unsigned int dev_registered:1; -diff --git a/include/sound/ymfpci.h b/include/sound/ymfpci.h -index 4119966..1a4671c 100644 ---- a/include/sound/ymfpci.h -+++ b/include/sound/ymfpci.h -@@ -358,7 +358,7 @@ struct snd_ymfpci { - spinlock_t reg_lock; - spinlock_t voice_lock; - wait_queue_head_t interrupt_sleep; -- atomic_t interrupt_sleep_count; -+ atomic_unchecked_t interrupt_sleep_count; - struct snd_info_entry *proc_entry; - const struct firmware *dsp_microcode; - const struct firmware *controller_microcode; -diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h -index aaccc5f..092d568 100644 ---- a/include/target/target_core_base.h -+++ b/include/target/target_core_base.h -@@ -447,7 +447,7 @@ struct t10_reservation_ops { - int (*t10_seq_non_holder)(struct se_cmd *, unsigned char *, u32); - int (*t10_pr_register)(struct se_cmd *); - int (*t10_pr_clear)(struct se_cmd *); --}; -+} __no_const; - - struct t10_reservation { - /* Reservation effects all target ports */ -@@ -576,7 +576,7 @@ struct se_cmd { - atomic_t t_se_count; - atomic_t t_task_cdbs_left; - atomic_t t_task_cdbs_ex_left; -- atomic_t t_task_cdbs_sent; -+ atomic_unchecked_t t_task_cdbs_sent; - unsigned int transport_state; - #define CMD_T_ABORTED (1 << 0) - #define CMD_T_ACTIVE (1 << 1) -@@ -802,7 +802,7 @@ struct se_device { - spinlock_t stats_lock; - /* Active commands on this virtual SE device */ - atomic_t simple_cmds; -- atomic_t dev_ordered_id; -+ atomic_unchecked_t dev_ordered_id; - atomic_t execute_tasks; - atomic_t dev_ordered_sync; - atomic_t dev_qf_count; -diff --git a/include/trace/events/fs.h b/include/trace/events/fs.h -new file mode 100644 -index 0000000..2efe49d ---- /dev/null -+++ b/include/trace/events/fs.h -@@ -0,0 +1,53 @@ -+#undef TRACE_SYSTEM -+#define TRACE_SYSTEM fs -+ -+#if !defined(_TRACE_FS_H) || defined(TRACE_HEADER_MULTI_READ) -+#define _TRACE_FS_H -+ -+#include <linux/fs.h> -+#include <linux/tracepoint.h> -+ -+TRACE_EVENT(do_sys_open, -+ -+ TP_PROTO(char *filename, int flags, int mode), -+ -+ TP_ARGS(filename, flags, mode), -+ -+ TP_STRUCT__entry( -+ __string( filename, filename ) -+ __field( int, flags ) -+ __field( int, mode ) -+ ), -+ -+ TP_fast_assign( -+ __assign_str(filename, filename); -+ __entry->flags = flags; -+ __entry->mode = mode; -+ ), -+ -+ TP_printk("\"%s\" %x %o", -+ __get_str(filename), __entry->flags, __entry->mode) -+); -+ -+TRACE_EVENT(open_exec, -+ -+ TP_PROTO(const char *filename), -+ -+ TP_ARGS(filename), -+ -+ TP_STRUCT__entry( -+ __string( filename, filename ) -+ ), -+ -+ TP_fast_assign( -+ __assign_str(filename, filename); -+ ), -+ -+ TP_printk("\"%s\"", -+ __get_str(filename)) -+); -+ -+#endif /* _TRACE_FS_H */ -+ -+/* This part must be outside protection */ -+#include <trace/define_trace.h> -diff --git a/include/trace/events/irq.h b/include/trace/events/irq.h -index 1c09820..7f5ec79 100644 ---- a/include/trace/events/irq.h -+++ b/include/trace/events/irq.h -@@ -36,7 +36,7 @@ struct softirq_action; - */ - TRACE_EVENT(irq_handler_entry, - -- TP_PROTO(int irq, struct irqaction *action), -+ TP_PROTO(int irq, const struct irqaction *action), - - TP_ARGS(irq, action), - -@@ -66,7 +66,7 @@ TRACE_EVENT(irq_handler_entry, - */ - TRACE_EVENT(irq_handler_exit, - -- TP_PROTO(int irq, struct irqaction *action, int ret), -+ TP_PROTO(int irq, const struct irqaction *action, int ret), - - TP_ARGS(irq, action, ret), - -diff --git a/include/video/udlfb.h b/include/video/udlfb.h -index f9466fa..f4e2b81 100644 ---- a/include/video/udlfb.h -+++ b/include/video/udlfb.h -@@ -53,10 +53,10 @@ struct dlfb_data { - u32 pseudo_palette[256]; - int blank_mode; /*one of FB_BLANK_ */ - /* blit-only rendering path metrics, exposed through sysfs */ -- atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */ -- atomic_t bytes_identical; /* saved effort with backbuffer comparison */ -- atomic_t bytes_sent; /* to usb, after compression including overhead */ -- atomic_t cpu_kcycles_used; /* transpired during pixel processing */ -+ atomic_unchecked_t bytes_rendered; /* raw pixel-bytes driver asked to render */ -+ atomic_unchecked_t bytes_identical; /* saved effort with backbuffer comparison */ -+ atomic_unchecked_t bytes_sent; /* to usb, after compression including overhead */ -+ atomic_unchecked_t cpu_kcycles_used; /* transpired during pixel processing */ - }; - - #define NR_USB_REQUEST_I2C_SUB_IO 0x02 -diff --git a/include/video/uvesafb.h b/include/video/uvesafb.h -index 0993a22..32ba2fe 100644 ---- a/include/video/uvesafb.h -+++ b/include/video/uvesafb.h -@@ -177,6 +177,7 @@ struct uvesafb_par { - u8 ypan; /* 0 - nothing, 1 - ypan, 2 - ywrap */ - u8 pmi_setpal; /* PMI for palette changes */ - u16 *pmi_base; /* protected mode interface location */ -+ u8 *pmi_code; /* protected mode code location */ - void *pmi_start; - void *pmi_pal; - u8 *vbe_state_orig; /* -diff --git a/init/Kconfig b/init/Kconfig -index 6cfd71d..73cb68d 100644 ---- a/init/Kconfig -+++ b/init/Kconfig -@@ -790,6 +790,7 @@ endif # CGROUPS - - config CHECKPOINT_RESTORE - bool "Checkpoint/restore support" if EXPERT -+ depends on !GRKERNSEC - default n - help - Enables additional kernel features in a sake of checkpoint/restore. -@@ -1240,7 +1241,7 @@ config SLUB_DEBUG - - config COMPAT_BRK - bool "Disable heap randomization" -- default y -+ default n - help - Randomizing heap placement makes heap exploits harder, but it - also breaks ancient binaries (including anything libc5 based). -diff --git a/init/do_mounts.c b/init/do_mounts.c -index 42b0707..c06eef4 100644 ---- a/init/do_mounts.c -+++ b/init/do_mounts.c -@@ -326,11 +326,11 @@ static void __init get_fs_names(char *page) - static int __init do_mount_root(char *name, char *fs, int flags, void *data) - { - struct super_block *s; -- int err = sys_mount(name, "/root", fs, flags, data); -+ int err = sys_mount((char __force_user *)name, (char __force_user *)"/root", (char __force_user *)fs, flags, (void __force_user *)data); - if (err) - return err; - -- sys_chdir((const char __user __force *)"/root"); -+ sys_chdir((const char __force_user *)"/root"); - s = current->fs->pwd.dentry->d_sb; - ROOT_DEV = s->s_dev; - printk(KERN_INFO -@@ -450,18 +450,18 @@ void __init change_floppy(char *fmt, ...) - va_start(args, fmt); - vsprintf(buf, fmt, args); - va_end(args); -- fd = sys_open("/dev/root", O_RDWR | O_NDELAY, 0); -+ fd = sys_open((char __user *)"/dev/root", O_RDWR | O_NDELAY, 0); - if (fd >= 0) { - sys_ioctl(fd, FDEJECT, 0); - sys_close(fd); - } - printk(KERN_NOTICE "VFS: Insert %s and press ENTER\n", buf); -- fd = sys_open("/dev/console", O_RDWR, 0); -+ fd = sys_open((__force const char __user *)"/dev/console", O_RDWR, 0); - if (fd >= 0) { - sys_ioctl(fd, TCGETS, (long)&termios); - termios.c_lflag &= ~ICANON; - sys_ioctl(fd, TCSETSF, (long)&termios); -- sys_read(fd, &c, 1); -+ sys_read(fd, (char __user *)&c, 1); - termios.c_lflag |= ICANON; - sys_ioctl(fd, TCSETSF, (long)&termios); - sys_close(fd); -@@ -555,6 +555,6 @@ void __init prepare_namespace(void) - mount_root(); - out: - devtmpfs_mount("dev"); -- sys_mount(".", "/", NULL, MS_MOVE, NULL); -- sys_chroot((const char __user __force *)"."); -+ sys_mount((char __force_user *)".", (char __force_user *)"/", NULL, MS_MOVE, NULL); -+ sys_chroot((const char __force_user *)"."); - } -diff --git a/init/do_mounts.h b/init/do_mounts.h -index f5b978a..69dbfe8 100644 ---- a/init/do_mounts.h -+++ b/init/do_mounts.h -@@ -15,15 +15,15 @@ extern int root_mountflags; - - static inline int create_dev(char *name, dev_t dev) - { -- sys_unlink(name); -- return sys_mknod(name, S_IFBLK|0600, new_encode_dev(dev)); -+ sys_unlink((char __force_user *)name); -+ return sys_mknod((char __force_user *)name, S_IFBLK|0600, new_encode_dev(dev)); - } - - #if BITS_PER_LONG == 32 - static inline u32 bstat(char *name) - { - struct stat64 stat; -- if (sys_stat64(name, &stat) != 0) -+ if (sys_stat64((char __force_user *)name, (struct stat64 __force_user *)&stat) != 0) - return 0; - if (!S_ISBLK(stat.st_mode)) - return 0; -@@ -35,7 +35,7 @@ static inline u32 bstat(char *name) - static inline u32 bstat(char *name) - { - struct stat stat; -- if (sys_newstat(name, &stat) != 0) -+ if (sys_newstat((const char __force_user *)name, (struct stat __force_user *)&stat) != 0) - return 0; - if (!S_ISBLK(stat.st_mode)) - return 0; -diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c -index 9047330..de0d1fb 100644 ---- a/init/do_mounts_initrd.c -+++ b/init/do_mounts_initrd.c -@@ -43,13 +43,13 @@ static void __init handle_initrd(void) - create_dev("/dev/root.old", Root_RAM0); - /* mount initrd on rootfs' /root */ - mount_block_root("/dev/root.old", root_mountflags & ~MS_RDONLY); -- sys_mkdir("/old", 0700); -- root_fd = sys_open("/", 0, 0); -- old_fd = sys_open("/old", 0, 0); -+ sys_mkdir((const char __force_user *)"/old", 0700); -+ root_fd = sys_open((const char __force_user *)"/", 0, 0); -+ old_fd = sys_open((const char __force_user *)"/old", 0, 0); - /* move initrd over / and chdir/chroot in initrd root */ -- sys_chdir("/root"); -- sys_mount(".", "/", NULL, MS_MOVE, NULL); -- sys_chroot("."); -+ sys_chdir((const char __force_user *)"/root"); -+ sys_mount((char __force_user *)".", (char __force_user *)"/", NULL, MS_MOVE, NULL); -+ sys_chroot((const char __force_user *)"."); - - /* - * In case that a resume from disk is carried out by linuxrc or one of -@@ -66,15 +66,15 @@ static void __init handle_initrd(void) - - /* move initrd to rootfs' /old */ - sys_fchdir(old_fd); -- sys_mount("/", ".", NULL, MS_MOVE, NULL); -+ sys_mount((char __force_user *)"/", (char __force_user *)".", NULL, MS_MOVE, NULL); - /* switch root and cwd back to / of rootfs */ - sys_fchdir(root_fd); -- sys_chroot("."); -+ sys_chroot((const char __force_user *)"."); - sys_close(old_fd); - sys_close(root_fd); - - if (new_decode_dev(real_root_dev) == Root_RAM0) { -- sys_chdir("/old"); -+ sys_chdir((const char __force_user *)"/old"); - return; - } - -@@ -82,17 +82,17 @@ static void __init handle_initrd(void) - mount_root(); - - printk(KERN_NOTICE "Trying to move old root to /initrd ... "); -- error = sys_mount("/old", "/root/initrd", NULL, MS_MOVE, NULL); -+ error = sys_mount((char __force_user *)"/old", (char __force_user *)"/root/initrd", NULL, MS_MOVE, NULL); - if (!error) - printk("okay\n"); - else { -- int fd = sys_open("/dev/root.old", O_RDWR, 0); -+ int fd = sys_open((const char __force_user *)"/dev/root.old", O_RDWR, 0); - if (error == -ENOENT) - printk("/initrd does not exist. Ignored.\n"); - else - printk("failed\n"); - printk(KERN_NOTICE "Unmounting old root\n"); -- sys_umount("/old", MNT_DETACH); -+ sys_umount((char __force_user *)"/old", MNT_DETACH); - printk(KERN_NOTICE "Trying to free ramdisk memory ... "); - if (fd < 0) { - error = fd; -@@ -115,11 +115,11 @@ int __init initrd_load(void) - * mounted in the normal path. - */ - if (rd_load_image("/initrd.image") && ROOT_DEV != Root_RAM0) { -- sys_unlink("/initrd.image"); -+ sys_unlink((const char __force_user *)"/initrd.image"); - handle_initrd(); - return 1; - } - } -- sys_unlink("/initrd.image"); -+ sys_unlink((const char __force_user *)"/initrd.image"); - return 0; - } -diff --git a/init/do_mounts_md.c b/init/do_mounts_md.c -index 32c4799..c27ee74 100644 ---- a/init/do_mounts_md.c -+++ b/init/do_mounts_md.c -@@ -170,7 +170,7 @@ static void __init md_setup_drive(void) - partitioned ? "_d" : "", minor, - md_setup_args[ent].device_names); - -- fd = sys_open(name, 0, 0); -+ fd = sys_open((char __force_user *)name, 0, 0); - if (fd < 0) { - printk(KERN_ERR "md: open failed - cannot start " - "array %s\n", name); -@@ -233,7 +233,7 @@ static void __init md_setup_drive(void) - * array without it - */ - sys_close(fd); -- fd = sys_open(name, 0, 0); -+ fd = sys_open((char __force_user *)name, 0, 0); - sys_ioctl(fd, BLKRRPART, 0); - } - sys_close(fd); -@@ -283,7 +283,7 @@ static void __init autodetect_raid(void) - - wait_for_device_probe(); - -- fd = sys_open((const char __user __force *) "/dev/md0", 0, 0); -+ fd = sys_open((const char __force_user *) "/dev/md0", 0, 0); - if (fd >= 0) { - sys_ioctl(fd, RAID_AUTORUN, raid_autopart); - sys_close(fd); -diff --git a/init/initramfs.c b/init/initramfs.c -index 8216c30..25e8e32 100644 ---- a/init/initramfs.c -+++ b/init/initramfs.c -@@ -74,7 +74,7 @@ static void __init free_hash(void) - } - } - --static long __init do_utime(char __user *filename, time_t mtime) -+static long __init do_utime(__force char __user *filename, time_t mtime) - { - struct timespec t[2]; - -@@ -109,7 +109,7 @@ static void __init dir_utime(void) - struct dir_entry *de, *tmp; - list_for_each_entry_safe(de, tmp, &dir_list, list) { - list_del(&de->list); -- do_utime(de->name, de->mtime); -+ do_utime((char __force_user *)de->name, de->mtime); - kfree(de->name); - kfree(de); - } -@@ -271,7 +271,7 @@ static int __init maybe_link(void) - if (nlink >= 2) { - char *old = find_link(major, minor, ino, mode, collected); - if (old) -- return (sys_link(old, collected) < 0) ? -1 : 1; -+ return (sys_link((char __force_user *)old, (char __force_user *)collected) < 0) ? -1 : 1; - } - return 0; - } -@@ -280,11 +280,11 @@ static void __init clean_path(char *path, umode_t mode) - { - struct stat st; - -- if (!sys_newlstat(path, &st) && (st.st_mode^mode) & S_IFMT) { -+ if (!sys_newlstat((char __force_user *)path, (struct stat __force_user *)&st) && (st.st_mode^mode) & S_IFMT) { - if (S_ISDIR(st.st_mode)) -- sys_rmdir(path); -+ sys_rmdir((char __force_user *)path); - else -- sys_unlink(path); -+ sys_unlink((char __force_user *)path); - } - } - -@@ -305,7 +305,7 @@ static int __init do_name(void) - int openflags = O_WRONLY|O_CREAT; - if (ml != 1) - openflags |= O_TRUNC; -- wfd = sys_open(collected, openflags, mode); -+ wfd = sys_open((char __force_user *)collected, openflags, mode); - - if (wfd >= 0) { - sys_fchown(wfd, uid, gid); -@@ -317,17 +317,17 @@ static int __init do_name(void) - } - } - } else if (S_ISDIR(mode)) { -- sys_mkdir(collected, mode); -- sys_chown(collected, uid, gid); -- sys_chmod(collected, mode); -+ sys_mkdir((char __force_user *)collected, mode); -+ sys_chown((char __force_user *)collected, uid, gid); -+ sys_chmod((char __force_user *)collected, mode); - dir_add(collected, mtime); - } else if (S_ISBLK(mode) || S_ISCHR(mode) || - S_ISFIFO(mode) || S_ISSOCK(mode)) { - if (maybe_link() == 0) { -- sys_mknod(collected, mode, rdev); -- sys_chown(collected, uid, gid); -- sys_chmod(collected, mode); -- do_utime(collected, mtime); -+ sys_mknod((char __force_user *)collected, mode, rdev); -+ sys_chown((char __force_user *)collected, uid, gid); -+ sys_chmod((char __force_user *)collected, mode); -+ do_utime((char __force_user *)collected, mtime); - } - } - return 0; -@@ -336,15 +336,15 @@ static int __init do_name(void) - static int __init do_copy(void) - { - if (count >= body_len) { -- sys_write(wfd, victim, body_len); -+ sys_write(wfd, (char __force_user *)victim, body_len); - sys_close(wfd); -- do_utime(vcollected, mtime); -+ do_utime((char __force_user *)vcollected, mtime); - kfree(vcollected); - eat(body_len); - state = SkipIt; - return 0; - } else { -- sys_write(wfd, victim, count); -+ sys_write(wfd, (char __force_user *)victim, count); - body_len -= count; - eat(count); - return 1; -@@ -355,9 +355,9 @@ static int __init do_symlink(void) - { - collected[N_ALIGN(name_len) + body_len] = '\0'; - clean_path(collected, 0); -- sys_symlink(collected + N_ALIGN(name_len), collected); -- sys_lchown(collected, uid, gid); -- do_utime(collected, mtime); -+ sys_symlink((char __force_user *)collected + N_ALIGN(name_len), (char __force_user *)collected); -+ sys_lchown((char __force_user *)collected, uid, gid); -+ do_utime((char __force_user *)collected, mtime); - state = SkipIt; - next_state = Reset; - return 0; -diff --git a/init/main.c b/init/main.c -index b08c5f7..09f865e 100644 ---- a/init/main.c -+++ b/init/main.c -@@ -95,6 +95,8 @@ static inline void mark_rodata_ro(void) { } - extern void tc_init(void); - #endif - -+extern void grsecurity_init(void); -+ - /* - * Debug helper: via this flag we know that we are in 'early bootup code' - * where only the boot processor is running with IRQ disabled. This means -@@ -148,6 +150,49 @@ static int __init set_reset_devices(char *str) - - __setup("reset_devices", set_reset_devices); - -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+extern char pax_enter_kernel_user[]; -+extern char pax_exit_kernel_user[]; -+extern pgdval_t clone_pgd_mask; -+#endif -+ -+#if defined(CONFIG_X86) && defined(CONFIG_PAX_MEMORY_UDEREF) -+static int __init setup_pax_nouderef(char *str) -+{ -+#ifdef CONFIG_X86_32 -+ unsigned int cpu; -+ struct desc_struct *gdt; -+ -+ for (cpu = 0; cpu < nr_cpu_ids; cpu++) { -+ gdt = get_cpu_gdt_table(cpu); -+ gdt[GDT_ENTRY_KERNEL_DS].type = 3; -+ gdt[GDT_ENTRY_KERNEL_DS].limit = 0xf; -+ gdt[GDT_ENTRY_DEFAULT_USER_CS].limit = 0xf; -+ gdt[GDT_ENTRY_DEFAULT_USER_DS].limit = 0xf; -+ } -+ asm("mov %0, %%ds; mov %0, %%es; mov %0, %%ss" : : "r" (__KERNEL_DS) : "memory"); -+#else -+ memcpy(pax_enter_kernel_user, (unsigned char []){0xc3}, 1); -+ memcpy(pax_exit_kernel_user, (unsigned char []){0xc3}, 1); -+ clone_pgd_mask = ~(pgdval_t)0UL; -+#endif -+ -+ return 0; -+} -+early_param("pax_nouderef", setup_pax_nouderef); -+#endif -+ -+#ifdef CONFIG_PAX_SOFTMODE -+int pax_softmode; -+ -+static int __init setup_pax_softmode(char *str) -+{ -+ get_option(&str, &pax_softmode); -+ return 1; -+} -+__setup("pax_softmode=", setup_pax_softmode); -+#endif -+ - static const char * argv_init[MAX_INIT_ARGS+2] = { "init", NULL, }; - const char * envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, }; - static const char *panic_later, *panic_param; -@@ -674,6 +719,7 @@ int __init_or_module do_one_initcall(initcall_t fn) - { - int count = preempt_count(); - int ret; -+ const char *msg1 = "", *msg2 = ""; - - if (initcall_debug) - ret = do_one_initcall_debug(fn); -@@ -686,15 +732,15 @@ int __init_or_module do_one_initcall(initcall_t fn) - sprintf(msgbuf, "error code %d ", ret); - - if (preempt_count() != count) { -- strlcat(msgbuf, "preemption imbalance ", sizeof(msgbuf)); -+ msg1 = " preemption imbalance"; - preempt_count() = count; - } - if (irqs_disabled()) { -- strlcat(msgbuf, "disabled interrupts ", sizeof(msgbuf)); -+ msg2 = " disabled interrupts"; - local_irq_enable(); - } -- if (msgbuf[0]) { -- printk("initcall %pF returned with %s\n", fn, msgbuf); -+ if (msgbuf[0] || *msg1 || *msg2) { -+ printk("initcall %pF returned with %s%s%s\n", fn, msgbuf, msg1, msg2); - } - - return ret; -@@ -865,7 +911,7 @@ static int __init kernel_init(void * unused) - do_basic_setup(); - - /* Open the /dev/console on the rootfs, this should never fail */ -- if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0) -+ if (sys_open((const char __force_user *) "/dev/console", O_RDWR, 0) < 0) - printk(KERN_WARNING "Warning: unable to open an initial console.\n"); - - (void) sys_dup(0); -@@ -878,11 +924,13 @@ static int __init kernel_init(void * unused) - if (!ramdisk_execute_command) - ramdisk_execute_command = "/init"; - -- if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) { -+ if (sys_access((const char __force_user *) ramdisk_execute_command, 0) != 0) { - ramdisk_execute_command = NULL; - prepare_namespace(); - } - -+ grsecurity_init(); -+ - /* - * Ok, we have completed the initial bootup, and - * we're essentially up and running. Get rid of the -diff --git a/ipc/mqueue.c b/ipc/mqueue.c -index 28bd64d..c66b72a 100644 ---- a/ipc/mqueue.c -+++ b/ipc/mqueue.c -@@ -156,6 +156,7 @@ static struct inode *mqueue_get_inode(struct super_block *sb, - mq_bytes = (mq_msg_tblsz + - (info->attr.mq_maxmsg * info->attr.mq_msgsize)); - -+ gr_learn_resource(current, RLIMIT_MSGQUEUE, u->mq_bytes + mq_bytes, 1); - spin_lock(&mq_lock); - if (u->mq_bytes + mq_bytes < u->mq_bytes || - u->mq_bytes + mq_bytes > rlimit(RLIMIT_MSGQUEUE)) { -diff --git a/ipc/msg.c b/ipc/msg.c -index 7385de2..a8180e08 100644 ---- a/ipc/msg.c -+++ b/ipc/msg.c -@@ -309,18 +309,19 @@ static inline int msg_security(struct kern_ipc_perm *ipcp, int msgflg) - return security_msg_queue_associate(msq, msgflg); - } - -+static struct ipc_ops msg_ops = { -+ .getnew = newque, -+ .associate = msg_security, -+ .more_checks = NULL -+}; -+ - SYSCALL_DEFINE2(msgget, key_t, key, int, msgflg) - { - struct ipc_namespace *ns; -- struct ipc_ops msg_ops; - struct ipc_params msg_params; - - ns = current->nsproxy->ipc_ns; - -- msg_ops.getnew = newque; -- msg_ops.associate = msg_security; -- msg_ops.more_checks = NULL; -- - msg_params.key = key; - msg_params.flg = msgflg; - -diff --git a/ipc/sem.c b/ipc/sem.c -index 5215a81..cfc0cac 100644 ---- a/ipc/sem.c -+++ b/ipc/sem.c -@@ -364,10 +364,15 @@ static inline int sem_more_checks(struct kern_ipc_perm *ipcp, - return 0; - } - -+static struct ipc_ops sem_ops = { -+ .getnew = newary, -+ .associate = sem_security, -+ .more_checks = sem_more_checks -+}; -+ - SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg) - { - struct ipc_namespace *ns; -- struct ipc_ops sem_ops; - struct ipc_params sem_params; - - ns = current->nsproxy->ipc_ns; -@@ -375,10 +380,6 @@ SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg) - if (nsems < 0 || nsems > ns->sc_semmsl) - return -EINVAL; - -- sem_ops.getnew = newary; -- sem_ops.associate = sem_security; -- sem_ops.more_checks = sem_more_checks; -- - sem_params.key = key; - sem_params.flg = semflg; - sem_params.u.nsems = nsems; -diff --git a/ipc/shm.c b/ipc/shm.c -index 406c5b2..bc66d67 100644 ---- a/ipc/shm.c -+++ b/ipc/shm.c -@@ -69,6 +69,14 @@ static void shm_destroy (struct ipc_namespace *ns, struct shmid_kernel *shp); - static int sysvipc_shm_proc_show(struct seq_file *s, void *it); - #endif - -+#ifdef CONFIG_GRKERNSEC -+extern int gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid, -+ const time_t shm_createtime, const uid_t cuid, -+ const int shmid); -+extern int gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid, -+ const time_t shm_createtime); -+#endif -+ - void shm_init_ns(struct ipc_namespace *ns) - { - ns->shm_ctlmax = SHMMAX; -@@ -508,6 +516,14 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params) - shp->shm_lprid = 0; - shp->shm_atim = shp->shm_dtim = 0; - shp->shm_ctim = get_seconds(); -+#ifdef CONFIG_GRKERNSEC -+ { -+ struct timespec timeval; -+ do_posix_clock_monotonic_gettime(&timeval); -+ -+ shp->shm_createtime = timeval.tv_sec; -+ } -+#endif - shp->shm_segsz = size; - shp->shm_nattch = 0; - shp->shm_file = file; -@@ -559,18 +575,19 @@ static inline int shm_more_checks(struct kern_ipc_perm *ipcp, - return 0; - } - -+static struct ipc_ops shm_ops = { -+ .getnew = newseg, -+ .associate = shm_security, -+ .more_checks = shm_more_checks -+}; -+ - SYSCALL_DEFINE3(shmget, key_t, key, size_t, size, int, shmflg) - { - struct ipc_namespace *ns; -- struct ipc_ops shm_ops; - struct ipc_params shm_params; - - ns = current->nsproxy->ipc_ns; - -- shm_ops.getnew = newseg; -- shm_ops.associate = shm_security; -- shm_ops.more_checks = shm_more_checks; -- - shm_params.key = key; - shm_params.flg = shmflg; - shm_params.u.size = size; -@@ -988,6 +1005,12 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr) - f_mode = FMODE_READ | FMODE_WRITE; - } - if (shmflg & SHM_EXEC) { -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (current->mm->pax_flags & MF_PAX_MPROTECT) -+ goto out; -+#endif -+ - prot |= PROT_EXEC; - acc_mode |= S_IXUGO; - } -@@ -1011,9 +1034,21 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr) - if (err) - goto out_unlock; - -+#ifdef CONFIG_GRKERNSEC -+ if (!gr_handle_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime, -+ shp->shm_perm.cuid, shmid) || -+ !gr_chroot_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime)) { -+ err = -EACCES; -+ goto out_unlock; -+ } -+#endif -+ - path = shp->shm_file->f_path; - path_get(&path); - shp->shm_nattch++; -+#ifdef CONFIG_GRKERNSEC -+ shp->shm_lapid = current->pid; -+#endif - size = i_size_read(path.dentry->d_inode); - shm_unlock(shp); - -diff --git a/kernel/acct.c b/kernel/acct.c -index 02e6167..54824f7 100644 ---- a/kernel/acct.c -+++ b/kernel/acct.c -@@ -550,7 +550,7 @@ static void do_acct_process(struct bsd_acct_struct *acct, - */ - flim = current->signal->rlim[RLIMIT_FSIZE].rlim_cur; - current->signal->rlim[RLIMIT_FSIZE].rlim_cur = RLIM_INFINITY; -- file->f_op->write(file, (char *)&ac, -+ file->f_op->write(file, (char __force_user *)&ac, - sizeof(acct_t), &file->f_pos); - current->signal->rlim[RLIMIT_FSIZE].rlim_cur = flim; - set_fs(fs); -diff --git a/kernel/audit.c b/kernel/audit.c -index 1c7f2c6..9ba5359 100644 ---- a/kernel/audit.c -+++ b/kernel/audit.c -@@ -115,7 +115,7 @@ u32 audit_sig_sid = 0; - 3) suppressed due to audit_rate_limit - 4) suppressed due to audit_backlog_limit - */ --static atomic_t audit_lost = ATOMIC_INIT(0); -+static atomic_unchecked_t audit_lost = ATOMIC_INIT(0); - - /* The netlink socket. */ - static struct sock *audit_sock; -@@ -237,7 +237,7 @@ void audit_log_lost(const char *message) - unsigned long now; - int print; - -- atomic_inc(&audit_lost); -+ atomic_inc_unchecked(&audit_lost); - - print = (audit_failure == AUDIT_FAIL_PANIC || !audit_rate_limit); - -@@ -256,7 +256,7 @@ void audit_log_lost(const char *message) - printk(KERN_WARNING - "audit: audit_lost=%d audit_rate_limit=%d " - "audit_backlog_limit=%d\n", -- atomic_read(&audit_lost), -+ atomic_read_unchecked(&audit_lost), - audit_rate_limit, - audit_backlog_limit); - audit_panic(message); -@@ -689,7 +689,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh) - status_set.pid = audit_pid; - status_set.rate_limit = audit_rate_limit; - status_set.backlog_limit = audit_backlog_limit; -- status_set.lost = atomic_read(&audit_lost); -+ status_set.lost = atomic_read_unchecked(&audit_lost); - status_set.backlog = skb_queue_len(&audit_skb_queue); - audit_send_reply(NETLINK_CB(skb).pid, seq, AUDIT_GET, 0, 0, - &status_set, sizeof(status_set)); -diff --git a/kernel/auditsc.c b/kernel/auditsc.c -index af1de0f..06dfe57 100644 ---- a/kernel/auditsc.c -+++ b/kernel/auditsc.c -@@ -2288,7 +2288,7 @@ int auditsc_get_stamp(struct audit_context *ctx, - } - - /* global counter which is incremented every time something logs in */ --static atomic_t session_id = ATOMIC_INIT(0); -+static atomic_unchecked_t session_id = ATOMIC_INIT(0); - - /** - * audit_set_loginuid - set current task's audit_context loginuid -@@ -2312,7 +2312,7 @@ int audit_set_loginuid(uid_t loginuid) - return -EPERM; - #endif /* CONFIG_AUDIT_LOGINUID_IMMUTABLE */ - -- sessionid = atomic_inc_return(&session_id); -+ sessionid = atomic_inc_return_unchecked(&session_id); - if (context && context->in_syscall) { - struct audit_buffer *ab; - -diff --git a/kernel/capability.c b/kernel/capability.c -index 3f1adb6..c564db0 100644 ---- a/kernel/capability.c -+++ b/kernel/capability.c -@@ -202,6 +202,9 @@ SYSCALL_DEFINE2(capget, cap_user_header_t, header, cap_user_data_t, dataptr) - * before modification is attempted and the application - * fails. - */ -+ if (tocopy > ARRAY_SIZE(kdata)) -+ return -EFAULT; -+ - if (copy_to_user(dataptr, kdata, tocopy - * sizeof(struct __user_cap_data_struct))) { - return -EFAULT; -@@ -303,10 +306,11 @@ bool has_ns_capability(struct task_struct *t, - int ret; - - rcu_read_lock(); -- ret = security_capable(__task_cred(t), ns, cap); -+ ret = security_capable(__task_cred(t), ns, cap) == 0 && -+ gr_task_is_capable(t, __task_cred(t), cap); - rcu_read_unlock(); - -- return (ret == 0); -+ return ret; - } - - /** -@@ -343,10 +347,10 @@ bool has_ns_capability_noaudit(struct task_struct *t, - int ret; - - rcu_read_lock(); -- ret = security_capable_noaudit(__task_cred(t), ns, cap); -+ ret = security_capable_noaudit(__task_cred(t), ns, cap) == 0 && gr_task_is_capable_nolog(t, cap); - rcu_read_unlock(); - -- return (ret == 0); -+ return ret; - } - - /** -@@ -384,7 +388,7 @@ bool ns_capable(struct user_namespace *ns, int cap) - BUG(); - } - -- if (security_capable(current_cred(), ns, cap) == 0) { -+ if (security_capable(current_cred(), ns, cap) == 0 && gr_is_capable(cap)) { - current->flags |= PF_SUPERPRIV; - return true; - } -@@ -392,6 +396,21 @@ bool ns_capable(struct user_namespace *ns, int cap) - } - EXPORT_SYMBOL(ns_capable); - -+bool ns_capable_nolog(struct user_namespace *ns, int cap) -+{ -+ if (unlikely(!cap_valid(cap))) { -+ printk(KERN_CRIT "capable() called with invalid cap=%u\n", cap); -+ BUG(); -+ } -+ -+ if (security_capable(current_cred(), ns, cap) == 0 && gr_is_capable_nolog(cap)) { -+ current->flags |= PF_SUPERPRIV; -+ return true; -+ } -+ return false; -+} -+EXPORT_SYMBOL(ns_capable_nolog); -+ - /** - * capable - Determine if the current task has a superior capability in effect - * @cap: The capability to be tested for -@@ -408,6 +427,12 @@ bool capable(int cap) - } - EXPORT_SYMBOL(capable); - -+bool capable_nolog(int cap) -+{ -+ return ns_capable_nolog(&init_user_ns, cap); -+} -+EXPORT_SYMBOL(capable_nolog); -+ - /** - * nsown_capable - Check superior capability to one's own user_ns - * @cap: The capability in question -diff --git a/kernel/compat.c b/kernel/compat.c -index d2c67aa..a629b2e 100644 ---- a/kernel/compat.c -+++ b/kernel/compat.c -@@ -13,6 +13,7 @@ - - #include <linux/linkage.h> - #include <linux/compat.h> -+#include <linux/module.h> - #include <linux/errno.h> - #include <linux/time.h> - #include <linux/signal.h> -@@ -220,7 +221,7 @@ static long compat_nanosleep_restart(struct restart_block *restart) - mm_segment_t oldfs; - long ret; - -- restart->nanosleep.rmtp = (struct timespec __user *) &rmt; -+ restart->nanosleep.rmtp = (struct timespec __force_user *) &rmt; - oldfs = get_fs(); - set_fs(KERNEL_DS); - ret = hrtimer_nanosleep_restart(restart); -@@ -252,7 +253,7 @@ asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp, - oldfs = get_fs(); - set_fs(KERNEL_DS); - ret = hrtimer_nanosleep(&tu, -- rmtp ? (struct timespec __user *)&rmt : NULL, -+ rmtp ? (struct timespec __force_user *)&rmt : NULL, - HRTIMER_MODE_REL, CLOCK_MONOTONIC); - set_fs(oldfs); - -@@ -361,7 +362,7 @@ asmlinkage long compat_sys_sigpending(compat_old_sigset_t __user *set) - mm_segment_t old_fs = get_fs(); - - set_fs(KERNEL_DS); -- ret = sys_sigpending((old_sigset_t __user *) &s); -+ ret = sys_sigpending((old_sigset_t __force_user *) &s); - set_fs(old_fs); - if (ret == 0) - ret = put_user(s, set); -@@ -451,7 +452,7 @@ asmlinkage long compat_sys_old_getrlimit(unsigned int resource, - mm_segment_t old_fs = get_fs(); - - set_fs(KERNEL_DS); -- ret = sys_old_getrlimit(resource, &r); -+ ret = sys_old_getrlimit(resource, (struct rlimit __force_user *)&r); - set_fs(old_fs); - - if (!ret) { -@@ -523,7 +524,7 @@ asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru) - mm_segment_t old_fs = get_fs(); - - set_fs(KERNEL_DS); -- ret = sys_getrusage(who, (struct rusage __user *) &r); -+ ret = sys_getrusage(who, (struct rusage __force_user *) &r); - set_fs(old_fs); - - if (ret) -@@ -550,8 +551,8 @@ compat_sys_wait4(compat_pid_t pid, compat_uint_t __user *stat_addr, int options, - set_fs (KERNEL_DS); - ret = sys_wait4(pid, - (stat_addr ? -- (unsigned int __user *) &status : NULL), -- options, (struct rusage __user *) &r); -+ (unsigned int __force_user *) &status : NULL), -+ options, (struct rusage __force_user *) &r); - set_fs (old_fs); - - if (ret > 0) { -@@ -576,8 +577,8 @@ asmlinkage long compat_sys_waitid(int which, compat_pid_t pid, - memset(&info, 0, sizeof(info)); - - set_fs(KERNEL_DS); -- ret = sys_waitid(which, pid, (siginfo_t __user *)&info, options, -- uru ? (struct rusage __user *)&ru : NULL); -+ ret = sys_waitid(which, pid, (siginfo_t __force_user *)&info, options, -+ uru ? (struct rusage __force_user *)&ru : NULL); - set_fs(old_fs); - - if ((ret < 0) || (info.si_signo == 0)) -@@ -707,8 +708,8 @@ long compat_sys_timer_settime(timer_t timer_id, int flags, - oldfs = get_fs(); - set_fs(KERNEL_DS); - err = sys_timer_settime(timer_id, flags, -- (struct itimerspec __user *) &newts, -- (struct itimerspec __user *) &oldts); -+ (struct itimerspec __force_user *) &newts, -+ (struct itimerspec __force_user *) &oldts); - set_fs(oldfs); - if (!err && old && put_compat_itimerspec(old, &oldts)) - return -EFAULT; -@@ -725,7 +726,7 @@ long compat_sys_timer_gettime(timer_t timer_id, - oldfs = get_fs(); - set_fs(KERNEL_DS); - err = sys_timer_gettime(timer_id, -- (struct itimerspec __user *) &ts); -+ (struct itimerspec __force_user *) &ts); - set_fs(oldfs); - if (!err && put_compat_itimerspec(setting, &ts)) - return -EFAULT; -@@ -744,7 +745,7 @@ long compat_sys_clock_settime(clockid_t which_clock, - oldfs = get_fs(); - set_fs(KERNEL_DS); - err = sys_clock_settime(which_clock, -- (struct timespec __user *) &ts); -+ (struct timespec __force_user *) &ts); - set_fs(oldfs); - return err; - } -@@ -759,7 +760,7 @@ long compat_sys_clock_gettime(clockid_t which_clock, - oldfs = get_fs(); - set_fs(KERNEL_DS); - err = sys_clock_gettime(which_clock, -- (struct timespec __user *) &ts); -+ (struct timespec __force_user *) &ts); - set_fs(oldfs); - if (!err && put_compat_timespec(&ts, tp)) - return -EFAULT; -@@ -779,7 +780,7 @@ long compat_sys_clock_adjtime(clockid_t which_clock, - - oldfs = get_fs(); - set_fs(KERNEL_DS); -- ret = sys_clock_adjtime(which_clock, (struct timex __user *) &txc); -+ ret = sys_clock_adjtime(which_clock, (struct timex __force_user *) &txc); - set_fs(oldfs); - - err = compat_put_timex(utp, &txc); -@@ -799,7 +800,7 @@ long compat_sys_clock_getres(clockid_t which_clock, - oldfs = get_fs(); - set_fs(KERNEL_DS); - err = sys_clock_getres(which_clock, -- (struct timespec __user *) &ts); -+ (struct timespec __force_user *) &ts); - set_fs(oldfs); - if (!err && tp && put_compat_timespec(&ts, tp)) - return -EFAULT; -@@ -811,9 +812,9 @@ static long compat_clock_nanosleep_restart(struct restart_block *restart) - long err; - mm_segment_t oldfs; - struct timespec tu; -- struct compat_timespec *rmtp = restart->nanosleep.compat_rmtp; -+ struct compat_timespec __user *rmtp = restart->nanosleep.compat_rmtp; - -- restart->nanosleep.rmtp = (struct timespec __user *) &tu; -+ restart->nanosleep.rmtp = (struct timespec __force_user *) &tu; - oldfs = get_fs(); - set_fs(KERNEL_DS); - err = clock_nanosleep_restart(restart); -@@ -845,8 +846,8 @@ long compat_sys_clock_nanosleep(clockid_t which_clock, int flags, - oldfs = get_fs(); - set_fs(KERNEL_DS); - err = sys_clock_nanosleep(which_clock, flags, -- (struct timespec __user *) &in, -- (struct timespec __user *) &out); -+ (struct timespec __force_user *) &in, -+ (struct timespec __force_user *) &out); - set_fs(oldfs); - - if ((err == -ERESTART_RESTARTBLOCK) && rmtp && -diff --git a/kernel/configs.c b/kernel/configs.c -index 42e8fa0..9e7406b 100644 ---- a/kernel/configs.c -+++ b/kernel/configs.c -@@ -74,8 +74,19 @@ static int __init ikconfig_init(void) - struct proc_dir_entry *entry; - - /* create the current config file */ -+#if defined(CONFIG_GRKERNSEC_PROC_ADD) || defined(CONFIG_GRKERNSEC_HIDESYM) -+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_HIDESYM) -+ entry = proc_create("config.gz", S_IFREG | S_IRUSR, NULL, -+ &ikconfig_file_ops); -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ entry = proc_create("config.gz", S_IFREG | S_IRUSR | S_IRGRP, NULL, -+ &ikconfig_file_ops); -+#endif -+#else - entry = proc_create("config.gz", S_IFREG | S_IRUGO, NULL, - &ikconfig_file_ops); -+#endif -+ - if (!entry) - return -ENOMEM; - -diff --git a/kernel/cred.c b/kernel/cred.c -index e70683d..27761b6 100644 ---- a/kernel/cred.c -+++ b/kernel/cred.c -@@ -205,6 +205,15 @@ void exit_creds(struct task_struct *tsk) - validate_creds(cred); - put_cred(cred); - } -+ -+#ifdef CONFIG_GRKERNSEC_SETXID -+ cred = (struct cred *) tsk->delayed_cred; -+ if (cred) { -+ tsk->delayed_cred = NULL; -+ validate_creds(cred); -+ put_cred(cred); -+ } -+#endif - } - - /** -@@ -473,7 +482,7 @@ error_put: - * Always returns 0 thus allowing this function to be tail-called at the end - * of, say, sys_setgid(). - */ --int commit_creds(struct cred *new) -+static int __commit_creds(struct cred *new) - { - struct task_struct *task = current; - const struct cred *old = task->real_cred; -@@ -492,6 +501,8 @@ int commit_creds(struct cred *new) - - get_cred(new); /* we will require a ref for the subj creds too */ - -+ gr_set_role_label(task, new->uid, new->gid); -+ - /* dumpability changes */ - if (old->euid != new->euid || - old->egid != new->egid || -@@ -541,6 +552,101 @@ int commit_creds(struct cred *new) - put_cred(old); - return 0; - } -+#ifdef CONFIG_GRKERNSEC_SETXID -+extern int set_user(struct cred *new); -+ -+void gr_delayed_cred_worker(void) -+{ -+ const struct cred *new = current->delayed_cred; -+ struct cred *ncred; -+ -+ current->delayed_cred = NULL; -+ -+ if (current_uid() && new != NULL) { -+ // from doing get_cred on it when queueing this -+ put_cred(new); -+ return; -+ } else if (new == NULL) -+ return; -+ -+ ncred = prepare_creds(); -+ if (!ncred) -+ goto die; -+ // uids -+ ncred->uid = new->uid; -+ ncred->euid = new->euid; -+ ncred->suid = new->suid; -+ ncred->fsuid = new->fsuid; -+ // gids -+ ncred->gid = new->gid; -+ ncred->egid = new->egid; -+ ncred->sgid = new->sgid; -+ ncred->fsgid = new->fsgid; -+ // groups -+ if (set_groups(ncred, new->group_info) < 0) { -+ abort_creds(ncred); -+ goto die; -+ } -+ // caps -+ ncred->securebits = new->securebits; -+ ncred->cap_inheritable = new->cap_inheritable; -+ ncred->cap_permitted = new->cap_permitted; -+ ncred->cap_effective = new->cap_effective; -+ ncred->cap_bset = new->cap_bset; -+ -+ if (set_user(ncred)) { -+ abort_creds(ncred); -+ goto die; -+ } -+ -+ // from doing get_cred on it when queueing this -+ put_cred(new); -+ -+ __commit_creds(ncred); -+ return; -+die: -+ // from doing get_cred on it when queueing this -+ put_cred(new); -+ do_group_exit(SIGKILL); -+} -+#endif -+ -+int commit_creds(struct cred *new) -+{ -+#ifdef CONFIG_GRKERNSEC_SETXID -+ int ret; -+ int schedule_it = 0; -+ struct task_struct *t; -+ -+ /* we won't get called with tasklist_lock held for writing -+ and interrupts disabled as the cred struct in that case is -+ init_cred -+ */ -+ if (grsec_enable_setxid && !current_is_single_threaded() && -+ !current_uid() && new->uid) { -+ schedule_it = 1; -+ } -+ ret = __commit_creds(new); -+ if (schedule_it) { -+ rcu_read_lock(); -+ read_lock(&tasklist_lock); -+ for (t = next_thread(current); t != current; -+ t = next_thread(t)) { -+ if (t->delayed_cred == NULL) { -+ t->delayed_cred = get_cred(new); -+ set_tsk_thread_flag(t, TIF_GRSEC_SETXID); -+ set_tsk_need_resched(t); -+ } -+ } -+ read_unlock(&tasklist_lock); -+ rcu_read_unlock(); -+ } -+ return ret; -+#else -+ return __commit_creds(new); -+#endif -+} -+ - EXPORT_SYMBOL(commit_creds); - - /** -diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c -index 0557f24..1a00d9a 100644 ---- a/kernel/debug/debug_core.c -+++ b/kernel/debug/debug_core.c -@@ -122,7 +122,7 @@ static DEFINE_RAW_SPINLOCK(dbg_slave_lock); - */ - static atomic_t masters_in_kgdb; - static atomic_t slaves_in_kgdb; --static atomic_t kgdb_break_tasklet_var; -+static atomic_unchecked_t kgdb_break_tasklet_var; - atomic_t kgdb_setting_breakpoint; - - struct task_struct *kgdb_usethread; -@@ -132,7 +132,7 @@ int kgdb_single_step; - static pid_t kgdb_sstep_pid; - - /* to keep track of the CPU which is doing the single stepping*/ --atomic_t kgdb_cpu_doing_single_step = ATOMIC_INIT(-1); -+atomic_unchecked_t kgdb_cpu_doing_single_step = ATOMIC_INIT(-1); - - /* - * If you are debugging a problem where roundup (the collection of -@@ -540,7 +540,7 @@ return_normal: - * kernel will only try for the value of sstep_tries before - * giving up and continuing on. - */ -- if (atomic_read(&kgdb_cpu_doing_single_step) != -1 && -+ if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1 && - (kgdb_info[cpu].task && - kgdb_info[cpu].task->pid != kgdb_sstep_pid) && --sstep_tries) { - atomic_set(&kgdb_active, -1); -@@ -634,8 +634,8 @@ cpu_master_loop: - } - - kgdb_restore: -- if (atomic_read(&kgdb_cpu_doing_single_step) != -1) { -- int sstep_cpu = atomic_read(&kgdb_cpu_doing_single_step); -+ if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1) { -+ int sstep_cpu = atomic_read_unchecked(&kgdb_cpu_doing_single_step); - if (kgdb_info[sstep_cpu].task) - kgdb_sstep_pid = kgdb_info[sstep_cpu].task->pid; - else -@@ -861,18 +861,18 @@ static void kgdb_unregister_callbacks(void) - static void kgdb_tasklet_bpt(unsigned long ing) - { - kgdb_breakpoint(); -- atomic_set(&kgdb_break_tasklet_var, 0); -+ atomic_set_unchecked(&kgdb_break_tasklet_var, 0); - } - - static DECLARE_TASKLET(kgdb_tasklet_breakpoint, kgdb_tasklet_bpt, 0); - - void kgdb_schedule_breakpoint(void) - { -- if (atomic_read(&kgdb_break_tasklet_var) || -+ if (atomic_read_unchecked(&kgdb_break_tasklet_var) || - atomic_read(&kgdb_active) != -1 || - atomic_read(&kgdb_setting_breakpoint)) - return; -- atomic_inc(&kgdb_break_tasklet_var); -+ atomic_inc_unchecked(&kgdb_break_tasklet_var); - tasklet_schedule(&kgdb_tasklet_breakpoint); - } - EXPORT_SYMBOL_GPL(kgdb_schedule_breakpoint); -diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c -index 67b847d..93834dd 100644 ---- a/kernel/debug/kdb/kdb_main.c -+++ b/kernel/debug/kdb/kdb_main.c -@@ -1983,7 +1983,7 @@ static int kdb_lsmod(int argc, const char **argv) - list_for_each_entry(mod, kdb_modules, list) { - - kdb_printf("%-20s%8u 0x%p ", mod->name, -- mod->core_size, (void *)mod); -+ mod->core_size_rx + mod->core_size_rw, (void *)mod); - #ifdef CONFIG_MODULE_UNLOAD - kdb_printf("%4ld ", module_refcount(mod)); - #endif -@@ -1993,7 +1993,7 @@ static int kdb_lsmod(int argc, const char **argv) - kdb_printf(" (Loading)"); - else - kdb_printf(" (Live)"); -- kdb_printf(" 0x%p", mod->module_core); -+ kdb_printf(" 0x%p 0x%p", mod->module_core_rx, mod->module_core_rw); - - #ifdef CONFIG_MODULE_UNLOAD - { -diff --git a/kernel/events/core.c b/kernel/events/core.c -index fd126f8..70b755b 100644 ---- a/kernel/events/core.c -+++ b/kernel/events/core.c -@@ -181,7 +181,7 @@ int perf_proc_update_handler(struct ctl_table *table, int write, - return 0; - } - --static atomic64_t perf_event_id; -+static atomic64_unchecked_t perf_event_id; - - static void cpu_ctx_sched_out(struct perf_cpu_context *cpuctx, - enum event_type_t event_type); -@@ -2659,7 +2659,7 @@ static void __perf_event_read(void *info) - - static inline u64 perf_event_count(struct perf_event *event) - { -- return local64_read(&event->count) + atomic64_read(&event->child_count); -+ return local64_read(&event->count) + atomic64_read_unchecked(&event->child_count); - } - - static u64 perf_event_read(struct perf_event *event) -@@ -2983,9 +2983,9 @@ u64 perf_event_read_value(struct perf_event *event, u64 *enabled, u64 *running) - mutex_lock(&event->child_mutex); - total += perf_event_read(event); - *enabled += event->total_time_enabled + -- atomic64_read(&event->child_total_time_enabled); -+ atomic64_read_unchecked(&event->child_total_time_enabled); - *running += event->total_time_running + -- atomic64_read(&event->child_total_time_running); -+ atomic64_read_unchecked(&event->child_total_time_running); - - list_for_each_entry(child, &event->child_list, child_list) { - total += perf_event_read(child); -@@ -3393,10 +3393,10 @@ void perf_event_update_userpage(struct perf_event *event) - userpg->offset -= local64_read(&event->hw.prev_count); - - userpg->time_enabled = enabled + -- atomic64_read(&event->child_total_time_enabled); -+ atomic64_read_unchecked(&event->child_total_time_enabled); - - userpg->time_running = running + -- atomic64_read(&event->child_total_time_running); -+ atomic64_read_unchecked(&event->child_total_time_running); - - arch_perf_update_userpage(userpg, now); - -@@ -3829,11 +3829,11 @@ static void perf_output_read_one(struct perf_output_handle *handle, - values[n++] = perf_event_count(event); - if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) { - values[n++] = enabled + -- atomic64_read(&event->child_total_time_enabled); -+ atomic64_read_unchecked(&event->child_total_time_enabled); - } - if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) { - values[n++] = running + -- atomic64_read(&event->child_total_time_running); -+ atomic64_read_unchecked(&event->child_total_time_running); - } - if (read_format & PERF_FORMAT_ID) - values[n++] = primary_event_id(event); -@@ -4511,12 +4511,12 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event) - * need to add enough zero bytes after the string to handle - * the 64bit alignment we do later. - */ -- buf = kzalloc(PATH_MAX + sizeof(u64), GFP_KERNEL); -+ buf = kzalloc(PATH_MAX, GFP_KERNEL); - if (!buf) { - name = strncpy(tmp, "//enomem", sizeof(tmp)); - goto got_name; - } -- name = d_path(&file->f_path, buf, PATH_MAX); -+ name = d_path(&file->f_path, buf, PATH_MAX - sizeof(u64)); - if (IS_ERR(name)) { - name = strncpy(tmp, "//toolong", sizeof(tmp)); - goto got_name; -@@ -5929,7 +5929,7 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu, - event->parent = parent_event; - - event->ns = get_pid_ns(current->nsproxy->pid_ns); -- event->id = atomic64_inc_return(&perf_event_id); -+ event->id = atomic64_inc_return_unchecked(&perf_event_id); - - event->state = PERF_EVENT_STATE_INACTIVE; - -@@ -6491,10 +6491,10 @@ static void sync_child_event(struct perf_event *child_event, - /* - * Add back the child's count to the parent's count: - */ -- atomic64_add(child_val, &parent_event->child_count); -- atomic64_add(child_event->total_time_enabled, -+ atomic64_add_unchecked(child_val, &parent_event->child_count); -+ atomic64_add_unchecked(child_event->total_time_enabled, - &parent_event->child_total_time_enabled); -- atomic64_add(child_event->total_time_running, -+ atomic64_add_unchecked(child_event->total_time_running, - &parent_event->child_total_time_running); - - /* -diff --git a/kernel/exit.c b/kernel/exit.c -index d8bd3b42..26bd8dc 100644 ---- a/kernel/exit.c -+++ b/kernel/exit.c -@@ -59,6 +59,10 @@ - #include <asm/pgtable.h> - #include <asm/mmu_context.h> - -+#ifdef CONFIG_GRKERNSEC -+extern rwlock_t grsec_exec_file_lock; -+#endif -+ - static void exit_mm(struct task_struct * tsk); - - static void __unhash_process(struct task_struct *p, bool group_dead) -@@ -170,6 +174,10 @@ void release_task(struct task_struct * p) - struct task_struct *leader; - int zap_leader; - repeat: -+#ifdef CONFIG_NET -+ gr_del_task_from_ip_table(p); -+#endif -+ - /* don't need to get the RCU readlock here - the process is dead and - * can't be modifying its own credentials. But shut RCU-lockdep up */ - rcu_read_lock(); -@@ -382,7 +390,7 @@ int allow_signal(int sig) - * know it'll be handled, so that they don't get converted to - * SIGKILL or just silently dropped. - */ -- current->sighand->action[(sig)-1].sa.sa_handler = (void __user *)2; -+ current->sighand->action[(sig)-1].sa.sa_handler = (__force void __user *)2; - recalc_sigpending(); - spin_unlock_irq(&current->sighand->siglock); - return 0; -@@ -418,6 +426,17 @@ void daemonize(const char *name, ...) - vsnprintf(current->comm, sizeof(current->comm), name, args); - va_end(args); - -+#ifdef CONFIG_GRKERNSEC -+ write_lock(&grsec_exec_file_lock); -+ if (current->exec_file) { -+ fput(current->exec_file); -+ current->exec_file = NULL; -+ } -+ write_unlock(&grsec_exec_file_lock); -+#endif -+ -+ gr_set_kernel_label(current); -+ - /* - * If we were started as result of loading a module, close all of the - * user space pages. We don't need them, and if we didn't close them -@@ -900,6 +919,8 @@ void do_exit(long code) - struct task_struct *tsk = current; - int group_dead; - -+ set_fs(USER_DS); -+ - profile_task_exit(tsk); - - WARN_ON(blk_needs_flush_plug(tsk)); -@@ -916,7 +937,6 @@ void do_exit(long code) - * mm_release()->clear_child_tid() from writing to a user-controlled - * kernel address. - */ -- set_fs(USER_DS); - - ptrace_event(PTRACE_EVENT_EXIT, code); - -@@ -977,6 +997,9 @@ void do_exit(long code) - tsk->exit_code = code; - taskstats_exit(tsk, group_dead); - -+ gr_acl_handle_psacct(tsk, code); -+ gr_acl_handle_exit(); -+ - exit_mm(tsk); - - if (group_dead) -@@ -1093,7 +1116,7 @@ SYSCALL_DEFINE1(exit, int, error_code) - * Take down every thread in the group. This is called by fatal signals - * as well as by sys_exit_group (below). - */ --void -+__noreturn void - do_group_exit(int exit_code) - { - struct signal_struct *sig = current->signal; -diff --git a/kernel/fork.c b/kernel/fork.c -index 8163333..efb4692 100644 ---- a/kernel/fork.c -+++ b/kernel/fork.c -@@ -286,7 +286,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig) - *stackend = STACK_END_MAGIC; /* for overflow detection */ - - #ifdef CONFIG_CC_STACKPROTECTOR -- tsk->stack_canary = get_random_int(); -+ tsk->stack_canary = pax_get_random_long(); - #endif - - /* -@@ -310,13 +310,78 @@ out: - } - - #ifdef CONFIG_MMU -+static struct vm_area_struct *dup_vma(struct mm_struct *mm, struct mm_struct *oldmm, struct vm_area_struct *mpnt) -+{ -+ struct vm_area_struct *tmp; -+ unsigned long charge; -+ struct mempolicy *pol; -+ struct file *file; -+ -+ charge = 0; -+ if (mpnt->vm_flags & VM_ACCOUNT) { -+ unsigned long len; -+ len = (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT; -+ if (security_vm_enough_memory_mm(oldmm, len)) /* sic */ -+ goto fail_nomem; -+ charge = len; -+ } -+ tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL); -+ if (!tmp) -+ goto fail_nomem; -+ *tmp = *mpnt; -+ tmp->vm_mm = mm; -+ INIT_LIST_HEAD(&tmp->anon_vma_chain); -+ pol = mpol_dup(vma_policy(mpnt)); -+ if (IS_ERR(pol)) -+ goto fail_nomem_policy; -+ vma_set_policy(tmp, pol); -+ if (anon_vma_fork(tmp, mpnt)) -+ goto fail_nomem_anon_vma_fork; -+ tmp->vm_flags &= ~VM_LOCKED; -+ tmp->vm_next = tmp->vm_prev = NULL; -+ tmp->vm_mirror = NULL; -+ file = tmp->vm_file; -+ if (file) { -+ struct inode *inode = file->f_path.dentry->d_inode; -+ struct address_space *mapping = file->f_mapping; -+ -+ get_file(file); -+ if (tmp->vm_flags & VM_DENYWRITE) -+ atomic_dec(&inode->i_writecount); -+ mutex_lock(&mapping->i_mmap_mutex); -+ if (tmp->vm_flags & VM_SHARED) -+ mapping->i_mmap_writable++; -+ flush_dcache_mmap_lock(mapping); -+ /* insert tmp into the share list, just after mpnt */ -+ vma_prio_tree_add(tmp, mpnt); -+ flush_dcache_mmap_unlock(mapping); -+ mutex_unlock(&mapping->i_mmap_mutex); -+ } -+ -+ /* -+ * Clear hugetlb-related page reserves for children. This only -+ * affects MAP_PRIVATE mappings. Faults generated by the child -+ * are not guaranteed to succeed, even if read-only -+ */ -+ if (is_vm_hugetlb_page(tmp)) -+ reset_vma_resv_huge_pages(tmp); -+ -+ return tmp; -+ -+fail_nomem_anon_vma_fork: -+ mpol_put(pol); -+fail_nomem_policy: -+ kmem_cache_free(vm_area_cachep, tmp); -+fail_nomem: -+ vm_unacct_memory(charge); -+ return NULL; -+} -+ - static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm) - { - struct vm_area_struct *mpnt, *tmp, *prev, **pprev; - struct rb_node **rb_link, *rb_parent; - int retval; -- unsigned long charge; -- struct mempolicy *pol; - - down_write(&oldmm->mmap_sem); - flush_cache_dup_mm(oldmm); -@@ -328,8 +393,8 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm) - mm->locked_vm = 0; - mm->mmap = NULL; - mm->mmap_cache = NULL; -- mm->free_area_cache = oldmm->mmap_base; -- mm->cached_hole_size = ~0UL; -+ mm->free_area_cache = oldmm->free_area_cache; -+ mm->cached_hole_size = oldmm->cached_hole_size; - mm->map_count = 0; - cpumask_clear(mm_cpumask(mm)); - mm->mm_rb = RB_ROOT; -@@ -345,8 +410,6 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm) - - prev = NULL; - for (mpnt = oldmm->mmap; mpnt; mpnt = mpnt->vm_next) { -- struct file *file; -- - if (mpnt->vm_flags & VM_DONTCOPY) { - long pages = vma_pages(mpnt); - mm->total_vm -= pages; -@@ -354,54 +417,11 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm) - -pages); - continue; - } -- charge = 0; -- if (mpnt->vm_flags & VM_ACCOUNT) { -- unsigned long len; -- len = (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT; -- if (security_vm_enough_memory_mm(oldmm, len)) /* sic */ -- goto fail_nomem; -- charge = len; -+ tmp = dup_vma(mm, oldmm, mpnt); -+ if (!tmp) { -+ retval = -ENOMEM; -+ goto out; - } -- tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL); -- if (!tmp) -- goto fail_nomem; -- *tmp = *mpnt; -- INIT_LIST_HEAD(&tmp->anon_vma_chain); -- pol = mpol_dup(vma_policy(mpnt)); -- retval = PTR_ERR(pol); -- if (IS_ERR(pol)) -- goto fail_nomem_policy; -- vma_set_policy(tmp, pol); -- tmp->vm_mm = mm; -- if (anon_vma_fork(tmp, mpnt)) -- goto fail_nomem_anon_vma_fork; -- tmp->vm_flags &= ~VM_LOCKED; -- tmp->vm_next = tmp->vm_prev = NULL; -- file = tmp->vm_file; -- if (file) { -- struct inode *inode = file->f_path.dentry->d_inode; -- struct address_space *mapping = file->f_mapping; -- -- get_file(file); -- if (tmp->vm_flags & VM_DENYWRITE) -- atomic_dec(&inode->i_writecount); -- mutex_lock(&mapping->i_mmap_mutex); -- if (tmp->vm_flags & VM_SHARED) -- mapping->i_mmap_writable++; -- flush_dcache_mmap_lock(mapping); -- /* insert tmp into the share list, just after mpnt */ -- vma_prio_tree_add(tmp, mpnt); -- flush_dcache_mmap_unlock(mapping); -- mutex_unlock(&mapping->i_mmap_mutex); -- } -- -- /* -- * Clear hugetlb-related page reserves for children. This only -- * affects MAP_PRIVATE mappings. Faults generated by the child -- * are not guaranteed to succeed, even if read-only -- */ -- if (is_vm_hugetlb_page(tmp)) -- reset_vma_resv_huge_pages(tmp); - - /* - * Link in the new vma and copy the page table entries. -@@ -424,6 +444,31 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm) - if (retval) - goto out; - } -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (oldmm->pax_flags & MF_PAX_SEGMEXEC) { -+ struct vm_area_struct *mpnt_m; -+ -+ for (mpnt = oldmm->mmap, mpnt_m = mm->mmap; mpnt; mpnt = mpnt->vm_next, mpnt_m = mpnt_m->vm_next) { -+ BUG_ON(!mpnt_m || mpnt_m->vm_mirror || mpnt->vm_mm != oldmm || mpnt_m->vm_mm != mm); -+ -+ if (!mpnt->vm_mirror) -+ continue; -+ -+ if (mpnt->vm_end <= SEGMEXEC_TASK_SIZE) { -+ BUG_ON(mpnt->vm_mirror->vm_mirror != mpnt); -+ mpnt->vm_mirror = mpnt_m; -+ } else { -+ BUG_ON(mpnt->vm_mirror->vm_mirror == mpnt || mpnt->vm_mirror->vm_mirror->vm_mm != mm); -+ mpnt_m->vm_mirror = mpnt->vm_mirror->vm_mirror; -+ mpnt_m->vm_mirror->vm_mirror = mpnt_m; -+ mpnt->vm_mirror->vm_mirror = mpnt; -+ } -+ } -+ BUG_ON(mpnt_m); -+ } -+#endif -+ - /* a new mm has just been created */ - arch_dup_mmap(oldmm, mm); - retval = 0; -@@ -432,14 +477,6 @@ out: - flush_tlb_mm(oldmm); - up_write(&oldmm->mmap_sem); - return retval; --fail_nomem_anon_vma_fork: -- mpol_put(pol); --fail_nomem_policy: -- kmem_cache_free(vm_area_cachep, tmp); --fail_nomem: -- retval = -ENOMEM; -- vm_unacct_memory(charge); -- goto out; - } - - static inline int mm_alloc_pgd(struct mm_struct *mm) -@@ -676,8 +713,8 @@ struct mm_struct *mm_access(struct task_struct *task, unsigned int mode) - return ERR_PTR(err); - - mm = get_task_mm(task); -- if (mm && mm != current->mm && -- !ptrace_may_access(task, mode)) { -+ if (mm && ((mm != current->mm && !ptrace_may_access(task, mode)) || -+ (mode == PTRACE_MODE_ATTACH && (gr_handle_proc_ptrace(task) || gr_acl_handle_procpidmem(task))))) { - mmput(mm); - mm = ERR_PTR(-EACCES); - } -@@ -899,13 +936,14 @@ static int copy_fs(unsigned long clone_flags, struct task_struct *tsk) - spin_unlock(&fs->lock); - return -EAGAIN; - } -- fs->users++; -+ atomic_inc(&fs->users); - spin_unlock(&fs->lock); - return 0; - } - tsk->fs = copy_fs_struct(fs); - if (!tsk->fs) - return -ENOMEM; -+ gr_set_chroot_entries(tsk, &tsk->fs->root); - return 0; - } - -@@ -1172,6 +1210,9 @@ static struct task_struct *copy_process(unsigned long clone_flags, - DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled); - #endif - retval = -EAGAIN; -+ -+ gr_learn_resource(p, RLIMIT_NPROC, atomic_read(&p->real_cred->user->processes), 0); -+ - if (atomic_read(&p->real_cred->user->processes) >= - task_rlimit(p, RLIMIT_NPROC)) { - if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE) && -@@ -1328,6 +1369,8 @@ static struct task_struct *copy_process(unsigned long clone_flags, - if (clone_flags & CLONE_THREAD) - p->tgid = current->tgid; - -+ gr_copy_label(p); -+ - p->set_child_tid = (clone_flags & CLONE_CHILD_SETTID) ? child_tidptr : NULL; - /* - * Clear TID on mm_release()? -@@ -1502,6 +1545,8 @@ bad_fork_cleanup_count: - bad_fork_free: - free_task(p); - fork_out: -+ gr_log_forkfail(retval); -+ - return ERR_PTR(retval); - } - -@@ -1602,6 +1647,8 @@ long do_fork(unsigned long clone_flags, - if (clone_flags & CLONE_PARENT_SETTID) - put_user(nr, parent_tidptr); - -+ gr_handle_brute_check(); -+ - if (clone_flags & CLONE_VFORK) { - p->vfork_done = &vfork; - init_completion(&vfork); -@@ -1700,7 +1747,7 @@ static int unshare_fs(unsigned long unshare_flags, struct fs_struct **new_fsp) - return 0; - - /* don't need lock here; in the worst case we'll do useless copy */ -- if (fs->users == 1) -+ if (atomic_read(&fs->users) == 1) - return 0; - - *new_fsp = copy_fs_struct(fs); -@@ -1789,7 +1836,8 @@ SYSCALL_DEFINE1(unshare, unsigned long, unshare_flags) - fs = current->fs; - spin_lock(&fs->lock); - current->fs = new_fs; -- if (--fs->users) -+ gr_set_chroot_entries(current, &current->fs->root); -+ if (atomic_dec_return(&fs->users)) - new_fs = NULL; - else - new_fs = fs; -diff --git a/kernel/futex.c b/kernel/futex.c -index e2b0fb9..db818ac 100644 ---- a/kernel/futex.c -+++ b/kernel/futex.c -@@ -54,6 +54,7 @@ - #include <linux/mount.h> - #include <linux/pagemap.h> - #include <linux/syscalls.h> -+#include <linux/ptrace.h> - #include <linux/signal.h> - #include <linux/export.h> - #include <linux/magic.h> -@@ -239,6 +240,11 @@ get_futex_key(u32 __user *uaddr, int fshared, union futex_key *key, int rw) - struct page *page, *page_head; - int err, ro = 0; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && address >= SEGMEXEC_TASK_SIZE) -+ return -EFAULT; -+#endif -+ - /* - * The futex address must be "naturally" aligned. - */ -@@ -2711,6 +2717,7 @@ static int __init futex_init(void) - { - u32 curval; - int i; -+ mm_segment_t oldfs; - - /* - * This will fail and we want it. Some arch implementations do -@@ -2722,8 +2729,11 @@ static int __init futex_init(void) - * implementation, the non-functional ones will return - * -ENOSYS. - */ -+ oldfs = get_fs(); -+ set_fs(USER_DS); - if (cmpxchg_futex_value_locked(&curval, NULL, 0, 0) == -EFAULT) - futex_cmpxchg_enabled = 1; -+ set_fs(oldfs); - - for (i = 0; i < ARRAY_SIZE(futex_queues); i++) { - plist_head_init(&futex_queues[i].chain); -diff --git a/kernel/gcov/base.c b/kernel/gcov/base.c -index 9b22d03..6295b62 100644 ---- a/kernel/gcov/base.c -+++ b/kernel/gcov/base.c -@@ -102,11 +102,6 @@ void gcov_enable_events(void) - } - - #ifdef CONFIG_MODULES --static inline int within(void *addr, void *start, unsigned long size) --{ -- return ((addr >= start) && (addr < start + size)); --} -- - /* Update list and generate events when modules are unloaded. */ - static int gcov_module_notifier(struct notifier_block *nb, unsigned long event, - void *data) -@@ -121,7 +116,7 @@ static int gcov_module_notifier(struct notifier_block *nb, unsigned long event, - prev = NULL; - /* Remove entries located in module from linked list. */ - for (info = gcov_info_head; info; info = info->next) { -- if (within(info, mod->module_core, mod->core_size)) { -+ if (within_module_core_rw((unsigned long)info, mod)) { - if (prev) - prev->next = info->next; - else -diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c -index ae34bf5..4e2f3d0 100644 ---- a/kernel/hrtimer.c -+++ b/kernel/hrtimer.c -@@ -1393,7 +1393,7 @@ void hrtimer_peek_ahead_timers(void) - local_irq_restore(flags); - } - --static void run_hrtimer_softirq(struct softirq_action *h) -+static void run_hrtimer_softirq(void) - { - hrtimer_peek_ahead_timers(); - } -diff --git a/kernel/jump_label.c b/kernel/jump_label.c -index 4304919..408c4c0 100644 ---- a/kernel/jump_label.c -+++ b/kernel/jump_label.c -@@ -13,6 +13,7 @@ - #include <linux/sort.h> - #include <linux/err.h> - #include <linux/static_key.h> -+#include <linux/mm.h> - - #ifdef HAVE_JUMP_LABEL - -@@ -50,7 +51,9 @@ jump_label_sort_entries(struct jump_entry *start, struct jump_entry *stop) - - size = (((unsigned long)stop - (unsigned long)start) - / sizeof(struct jump_entry)); -+ pax_open_kernel(); - sort(start, size, sizeof(struct jump_entry), jump_label_cmp, NULL); -+ pax_close_kernel(); - } - - static void jump_label_update(struct static_key *key, int enable); -@@ -356,10 +359,12 @@ static void jump_label_invalidate_module_init(struct module *mod) - struct jump_entry *iter_stop = iter_start + mod->num_jump_entries; - struct jump_entry *iter; - -+ pax_open_kernel(); - for (iter = iter_start; iter < iter_stop; iter++) { - if (within_module_init(iter->code, mod)) - iter->code = 0; - } -+ pax_close_kernel(); - } - - static int -diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c -index 079f1d3..a407562 100644 ---- a/kernel/kallsyms.c -+++ b/kernel/kallsyms.c -@@ -11,6 +11,9 @@ - * Changed the compression method from stem compression to "table lookup" - * compression (see scripts/kallsyms.c for a more complete description) - */ -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+#define __INCLUDED_BY_HIDESYM 1 -+#endif - #include <linux/kallsyms.h> - #include <linux/module.h> - #include <linux/init.h> -@@ -53,12 +56,33 @@ extern const unsigned long kallsyms_markers[] __attribute__((weak)); - - static inline int is_kernel_inittext(unsigned long addr) - { -+ if (system_state != SYSTEM_BOOTING) -+ return 0; -+ - if (addr >= (unsigned long)_sinittext - && addr <= (unsigned long)_einittext) - return 1; - return 0; - } - -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+#ifdef CONFIG_MODULES -+static inline int is_module_text(unsigned long addr) -+{ -+ if ((unsigned long)MODULES_EXEC_VADDR <= addr && addr <= (unsigned long)MODULES_EXEC_END) -+ return 1; -+ -+ addr = ktla_ktva(addr); -+ return (unsigned long)MODULES_EXEC_VADDR <= addr && addr <= (unsigned long)MODULES_EXEC_END; -+} -+#else -+static inline int is_module_text(unsigned long addr) -+{ -+ return 0; -+} -+#endif -+#endif -+ - static inline int is_kernel_text(unsigned long addr) - { - if ((addr >= (unsigned long)_stext && addr <= (unsigned long)_etext) || -@@ -69,13 +93,28 @@ static inline int is_kernel_text(unsigned long addr) - - static inline int is_kernel(unsigned long addr) - { -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ if (is_kernel_text(addr) || is_kernel_inittext(addr)) -+ return 1; -+ -+ if (ktla_ktva((unsigned long)_text) <= addr && addr < (unsigned long)_end) -+#else - if (addr >= (unsigned long)_stext && addr <= (unsigned long)_end) -+#endif -+ - return 1; - return in_gate_area_no_mm(addr); - } - - static int is_ksym_addr(unsigned long addr) - { -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ if (is_module_text(addr)) -+ return 0; -+#endif -+ - if (all_var) - return is_kernel(addr); - -@@ -454,7 +493,6 @@ static unsigned long get_ksymbol_core(struct kallsym_iter *iter) - - static void reset_iter(struct kallsym_iter *iter, loff_t new_pos) - { -- iter->name[0] = '\0'; - iter->nameoff = get_symbol_offset(new_pos); - iter->pos = new_pos; - } -@@ -502,6 +540,11 @@ static int s_show(struct seq_file *m, void *p) - { - struct kallsym_iter *iter = m->private; - -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ if (current_uid()) -+ return 0; -+#endif -+ - /* Some debugging symbols have no name. Ignore them. */ - if (!iter->name[0]) - return 0; -@@ -540,7 +583,7 @@ static int kallsyms_open(struct inode *inode, struct file *file) - struct kallsym_iter *iter; - int ret; - -- iter = kmalloc(sizeof(*iter), GFP_KERNEL); -+ iter = kzalloc(sizeof(*iter), GFP_KERNEL); - if (!iter) - return -ENOMEM; - reset_iter(iter, 0); -diff --git a/kernel/kexec.c b/kernel/kexec.c -index 4e2e472..cd0c7ae 100644 ---- a/kernel/kexec.c -+++ b/kernel/kexec.c -@@ -1046,7 +1046,8 @@ asmlinkage long compat_sys_kexec_load(unsigned long entry, - unsigned long flags) - { - struct compat_kexec_segment in; -- struct kexec_segment out, __user *ksegments; -+ struct kexec_segment out; -+ struct kexec_segment __user *ksegments; - unsigned long i, result; - - /* Don't allow clients that don't understand the native -diff --git a/kernel/kmod.c b/kernel/kmod.c -index 05698a7..a4c1e3a 100644 ---- a/kernel/kmod.c -+++ b/kernel/kmod.c -@@ -66,7 +66,7 @@ static void free_modprobe_argv(struct subprocess_info *info) - kfree(info->argv); - } - --static int call_modprobe(char *module_name, int wait) -+static int call_modprobe(char *module_name, char *module_param, int wait) - { - static char *envp[] = { - "HOME=/", -@@ -75,7 +75,7 @@ static int call_modprobe(char *module_name, int wait) - NULL - }; - -- char **argv = kmalloc(sizeof(char *[5]), GFP_KERNEL); -+ char **argv = kmalloc(sizeof(char *[6]), GFP_KERNEL); - if (!argv) - goto out; - -@@ -87,7 +87,8 @@ static int call_modprobe(char *module_name, int wait) - argv[1] = "-q"; - argv[2] = "--"; - argv[3] = module_name; /* check free_modprobe_argv() */ -- argv[4] = NULL; -+ argv[4] = module_param; -+ argv[5] = NULL; - - return call_usermodehelper_fns(modprobe_path, argv, envp, - wait | UMH_KILLABLE, NULL, free_modprobe_argv, NULL); -@@ -112,9 +113,8 @@ out: - * If module auto-loading support is disabled then this function - * becomes a no-operation. - */ --int __request_module(bool wait, const char *fmt, ...) -+static int ____request_module(bool wait, char *module_param, const char *fmt, va_list ap) - { -- va_list args; - char module_name[MODULE_NAME_LEN]; - unsigned int max_modprobes; - int ret; -@@ -122,9 +122,7 @@ int __request_module(bool wait, const char *fmt, ...) - #define MAX_KMOD_CONCURRENT 50 /* Completely arbitrary value - KAO */ - static int kmod_loop_msg; - -- va_start(args, fmt); -- ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, args); -- va_end(args); -+ ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, ap); - if (ret >= MODULE_NAME_LEN) - return -ENAMETOOLONG; - -@@ -132,6 +130,20 @@ int __request_module(bool wait, const char *fmt, ...) - if (ret) - return ret; - -+#ifdef CONFIG_GRKERNSEC_MODHARDEN -+ if (!current_uid()) { -+ /* hack to workaround consolekit/udisks stupidity */ -+ read_lock(&tasklist_lock); -+ if (!strcmp(current->comm, "mount") && -+ current->real_parent && !strncmp(current->real_parent->comm, "udisk", 5)) { -+ read_unlock(&tasklist_lock); -+ printk(KERN_ALERT "grsec: denied attempt to auto-load fs module %.64s by udisks\n", module_name); -+ return -EPERM; -+ } -+ read_unlock(&tasklist_lock); -+ } -+#endif -+ - /* If modprobe needs a service that is in a module, we get a recursive - * loop. Limit the number of running kmod threads to max_threads/2 or - * MAX_KMOD_CONCURRENT, whichever is the smaller. A cleaner method -@@ -160,11 +172,52 @@ int __request_module(bool wait, const char *fmt, ...) - - trace_module_request(module_name, wait, _RET_IP_); - -- ret = call_modprobe(module_name, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC); -+ ret = call_modprobe(module_name, module_param, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC); - - atomic_dec(&kmod_concurrent); - return ret; - } -+ -+int ___request_module(bool wait, char *module_param, const char *fmt, ...) -+{ -+ va_list args; -+ int ret; -+ -+ va_start(args, fmt); -+ ret = ____request_module(wait, module_param, fmt, args); -+ va_end(args); -+ -+ return ret; -+} -+ -+int __request_module(bool wait, const char *fmt, ...) -+{ -+ va_list args; -+ int ret; -+ -+#ifdef CONFIG_GRKERNSEC_MODHARDEN -+ if (current_uid()) { -+ char module_param[MODULE_NAME_LEN]; -+ -+ memset(module_param, 0, sizeof(module_param)); -+ -+ snprintf(module_param, sizeof(module_param) - 1, "grsec_modharden_normal%u_", current_uid()); -+ -+ va_start(args, fmt); -+ ret = ____request_module(wait, module_param, fmt, args); -+ va_end(args); -+ -+ return ret; -+ } -+#endif -+ -+ va_start(args, fmt); -+ ret = ____request_module(wait, NULL, fmt, args); -+ va_end(args); -+ -+ return ret; -+} -+ - EXPORT_SYMBOL(__request_module); - #endif /* CONFIG_MODULES */ - -@@ -267,7 +320,7 @@ static int wait_for_helper(void *data) - * - * Thus the __user pointer cast is valid here. - */ -- sys_wait4(pid, (int __user *)&ret, 0, NULL); -+ sys_wait4(pid, (int __force_user *)&ret, 0, NULL); - - /* - * If ret is 0, either ____call_usermodehelper failed and the -diff --git a/kernel/kprobes.c b/kernel/kprobes.c -index c62b854..cb67968 100644 ---- a/kernel/kprobes.c -+++ b/kernel/kprobes.c -@@ -185,7 +185,7 @@ static kprobe_opcode_t __kprobes *__get_insn_slot(struct kprobe_insn_cache *c) - * kernel image and loaded module images reside. This is required - * so x86_64 can correctly handle the %rip-relative fixups. - */ -- kip->insns = module_alloc(PAGE_SIZE); -+ kip->insns = module_alloc_exec(PAGE_SIZE); - if (!kip->insns) { - kfree(kip); - return NULL; -@@ -225,7 +225,7 @@ static int __kprobes collect_one_slot(struct kprobe_insn_page *kip, int idx) - */ - if (!list_is_singular(&kip->list)) { - list_del(&kip->list); -- module_free(NULL, kip->insns); -+ module_free_exec(NULL, kip->insns); - kfree(kip); - } - return 1; -@@ -1955,7 +1955,7 @@ static int __init init_kprobes(void) - { - int i, err = 0; - unsigned long offset = 0, size = 0; -- char *modname, namebuf[128]; -+ char *modname, namebuf[KSYM_NAME_LEN]; - const char *symbol_name; - void *addr; - struct kprobe_blackpoint *kb; -@@ -2081,7 +2081,7 @@ static int __kprobes show_kprobe_addr(struct seq_file *pi, void *v) - const char *sym = NULL; - unsigned int i = *(loff_t *) v; - unsigned long offset = 0; -- char *modname, namebuf[128]; -+ char *modname, namebuf[KSYM_NAME_LEN]; - - head = &kprobe_table[i]; - preempt_disable(); -diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c -index 4e316e1..5501eef 100644 ---- a/kernel/ksysfs.c -+++ b/kernel/ksysfs.c -@@ -47,6 +47,8 @@ static ssize_t uevent_helper_store(struct kobject *kobj, - { - if (count+1 > UEVENT_HELPER_PATH_LEN) - return -ENOENT; -+ if (!capable(CAP_SYS_ADMIN)) -+ return -EPERM; - memcpy(uevent_helper, buf, count); - uevent_helper[count] = '\0'; - if (count && uevent_helper[count-1] == '\n') -diff --git a/kernel/lockdep.c b/kernel/lockdep.c -index ea9ee45..67ebc8f 100644 ---- a/kernel/lockdep.c -+++ b/kernel/lockdep.c -@@ -590,6 +590,10 @@ static int static_obj(void *obj) - end = (unsigned long) &_end, - addr = (unsigned long) obj; - -+#ifdef CONFIG_PAX_KERNEXEC -+ start = ktla_ktva(start); -+#endif -+ - /* - * static variable? - */ -@@ -730,6 +734,7 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force) - if (!static_obj(lock->key)) { - debug_locks_off(); - printk("INFO: trying to register non-static key.\n"); -+ printk("lock:%pS key:%pS.\n", lock, lock->key); - printk("the code is fine but needs lockdep annotation.\n"); - printk("turning off the locking correctness validator.\n"); - dump_stack(); -@@ -3042,7 +3047,7 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass, - if (!class) - return 0; - } -- atomic_inc((atomic_t *)&class->ops); -+ atomic_inc_unchecked((atomic_unchecked_t *)&class->ops); - if (very_verbose(class)) { - printk("\nacquire class [%p] %s", class->key, class->name); - if (class->name_version > 1) -diff --git a/kernel/lockdep_proc.c b/kernel/lockdep_proc.c -index 91c32a0..b2c71c5 100644 ---- a/kernel/lockdep_proc.c -+++ b/kernel/lockdep_proc.c -@@ -39,7 +39,7 @@ static void l_stop(struct seq_file *m, void *v) - - static void print_name(struct seq_file *m, struct lock_class *class) - { -- char str[128]; -+ char str[KSYM_NAME_LEN]; - const char *name = class->name; - - if (!name) { -diff --git a/kernel/module.c b/kernel/module.c -index 78ac6ec..e87db0e 100644 ---- a/kernel/module.c -+++ b/kernel/module.c -@@ -58,6 +58,7 @@ - #include <linux/jump_label.h> - #include <linux/pfn.h> - #include <linux/bsearch.h> -+#include <linux/grsecurity.h> - - #define CREATE_TRACE_POINTS - #include <trace/events/module.h> -@@ -114,7 +115,8 @@ static BLOCKING_NOTIFIER_HEAD(module_notify_list); - - /* Bounds of module allocation, for speeding __module_address. - * Protected by module_mutex. */ --static unsigned long module_addr_min = -1UL, module_addr_max = 0; -+static unsigned long module_addr_min_rw = -1UL, module_addr_max_rw = 0; -+static unsigned long module_addr_min_rx = -1UL, module_addr_max_rx = 0; - - int register_module_notifier(struct notifier_block * nb) - { -@@ -278,7 +280,7 @@ bool each_symbol_section(bool (*fn)(const struct symsearch *arr, - return true; - - list_for_each_entry_rcu(mod, &modules, list) { -- struct symsearch arr[] = { -+ struct symsearch modarr[] = { - { mod->syms, mod->syms + mod->num_syms, mod->crcs, - NOT_GPL_ONLY, false }, - { mod->gpl_syms, mod->gpl_syms + mod->num_gpl_syms, -@@ -300,7 +302,7 @@ bool each_symbol_section(bool (*fn)(const struct symsearch *arr, - #endif - }; - -- if (each_symbol_in_section(arr, ARRAY_SIZE(arr), mod, fn, data)) -+ if (each_symbol_in_section(modarr, ARRAY_SIZE(modarr), mod, fn, data)) - return true; - } - return false; -@@ -432,7 +434,7 @@ static inline void __percpu *mod_percpu(struct module *mod) - static int percpu_modalloc(struct module *mod, - unsigned long size, unsigned long align) - { -- if (align > PAGE_SIZE) { -+ if (align-1 >= PAGE_SIZE) { - printk(KERN_WARNING "%s: per-cpu alignment %li > %li\n", - mod->name, align, PAGE_SIZE); - align = PAGE_SIZE; -@@ -1032,7 +1034,7 @@ struct module_attribute module_uevent = - static ssize_t show_coresize(struct module_attribute *mattr, - struct module_kobject *mk, char *buffer) - { -- return sprintf(buffer, "%u\n", mk->mod->core_size); -+ return sprintf(buffer, "%u\n", mk->mod->core_size_rx + mk->mod->core_size_rw); - } - - static struct module_attribute modinfo_coresize = -@@ -1041,7 +1043,7 @@ static struct module_attribute modinfo_coresize = - static ssize_t show_initsize(struct module_attribute *mattr, - struct module_kobject *mk, char *buffer) - { -- return sprintf(buffer, "%u\n", mk->mod->init_size); -+ return sprintf(buffer, "%u\n", mk->mod->init_size_rx + mk->mod->init_size_rw); - } - - static struct module_attribute modinfo_initsize = -@@ -1255,7 +1257,7 @@ resolve_symbol_wait(struct module *mod, - */ - #ifdef CONFIG_SYSFS - --#ifdef CONFIG_KALLSYMS -+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM) - static inline bool sect_empty(const Elf_Shdr *sect) - { - return !(sect->sh_flags & SHF_ALLOC) || sect->sh_size == 0; -@@ -1721,21 +1723,21 @@ static void set_section_ro_nx(void *base, - - static void unset_module_core_ro_nx(struct module *mod) - { -- set_page_attributes(mod->module_core + mod->core_text_size, -- mod->module_core + mod->core_size, -+ set_page_attributes(mod->module_core_rw, -+ mod->module_core_rw + mod->core_size_rw, - set_memory_x); -- set_page_attributes(mod->module_core, -- mod->module_core + mod->core_ro_size, -+ set_page_attributes(mod->module_core_rx, -+ mod->module_core_rx + mod->core_size_rx, - set_memory_rw); - } - - static void unset_module_init_ro_nx(struct module *mod) - { -- set_page_attributes(mod->module_init + mod->init_text_size, -- mod->module_init + mod->init_size, -+ set_page_attributes(mod->module_init_rw, -+ mod->module_init_rw + mod->init_size_rw, - set_memory_x); -- set_page_attributes(mod->module_init, -- mod->module_init + mod->init_ro_size, -+ set_page_attributes(mod->module_init_rx, -+ mod->module_init_rx + mod->init_size_rx, - set_memory_rw); - } - -@@ -1746,14 +1748,14 @@ void set_all_modules_text_rw(void) - - mutex_lock(&module_mutex); - list_for_each_entry_rcu(mod, &modules, list) { -- if ((mod->module_core) && (mod->core_text_size)) { -- set_page_attributes(mod->module_core, -- mod->module_core + mod->core_text_size, -+ if ((mod->module_core_rx) && (mod->core_size_rx)) { -+ set_page_attributes(mod->module_core_rx, -+ mod->module_core_rx + mod->core_size_rx, - set_memory_rw); - } -- if ((mod->module_init) && (mod->init_text_size)) { -- set_page_attributes(mod->module_init, -- mod->module_init + mod->init_text_size, -+ if ((mod->module_init_rx) && (mod->init_size_rx)) { -+ set_page_attributes(mod->module_init_rx, -+ mod->module_init_rx + mod->init_size_rx, - set_memory_rw); - } - } -@@ -1767,14 +1769,14 @@ void set_all_modules_text_ro(void) - - mutex_lock(&module_mutex); - list_for_each_entry_rcu(mod, &modules, list) { -- if ((mod->module_core) && (mod->core_text_size)) { -- set_page_attributes(mod->module_core, -- mod->module_core + mod->core_text_size, -+ if ((mod->module_core_rx) && (mod->core_size_rx)) { -+ set_page_attributes(mod->module_core_rx, -+ mod->module_core_rx + mod->core_size_rx, - set_memory_ro); - } -- if ((mod->module_init) && (mod->init_text_size)) { -- set_page_attributes(mod->module_init, -- mod->module_init + mod->init_text_size, -+ if ((mod->module_init_rx) && (mod->init_size_rx)) { -+ set_page_attributes(mod->module_init_rx, -+ mod->module_init_rx + mod->init_size_rx, - set_memory_ro); - } - } -@@ -1820,16 +1822,19 @@ static void free_module(struct module *mod) - - /* This may be NULL, but that's OK */ - unset_module_init_ro_nx(mod); -- module_free(mod, mod->module_init); -+ module_free(mod, mod->module_init_rw); -+ module_free_exec(mod, mod->module_init_rx); - kfree(mod->args); - percpu_modfree(mod); - - /* Free lock-classes: */ -- lockdep_free_key_range(mod->module_core, mod->core_size); -+ lockdep_free_key_range(mod->module_core_rx, mod->core_size_rx); -+ lockdep_free_key_range(mod->module_core_rw, mod->core_size_rw); - - /* Finally, free the core (containing the module structure) */ - unset_module_core_ro_nx(mod); -- module_free(mod, mod->module_core); -+ module_free_exec(mod, mod->module_core_rx); -+ module_free(mod, mod->module_core_rw); - - #ifdef CONFIG_MPU - update_protections(current->mm); -@@ -1899,9 +1904,31 @@ static int simplify_symbols(struct module *mod, const struct load_info *info) - int ret = 0; - const struct kernel_symbol *ksym; - -+#ifdef CONFIG_GRKERNSEC_MODHARDEN -+ int is_fs_load = 0; -+ int register_filesystem_found = 0; -+ char *p; -+ -+ p = strstr(mod->args, "grsec_modharden_fs"); -+ if (p) { -+ char *endptr = p + strlen("grsec_modharden_fs"); -+ /* copy \0 as well */ -+ memmove(p, endptr, strlen(mod->args) - (unsigned int)(endptr - mod->args) + 1); -+ is_fs_load = 1; -+ } -+#endif -+ - for (i = 1; i < symsec->sh_size / sizeof(Elf_Sym); i++) { - const char *name = info->strtab + sym[i].st_name; - -+#ifdef CONFIG_GRKERNSEC_MODHARDEN -+ /* it's a real shame this will never get ripped and copied -+ upstream! ;( -+ */ -+ if (is_fs_load && !strcmp(name, "register_filesystem")) -+ register_filesystem_found = 1; -+#endif -+ - switch (sym[i].st_shndx) { - case SHN_COMMON: - /* We compiled with -fno-common. These are not -@@ -1922,7 +1949,9 @@ static int simplify_symbols(struct module *mod, const struct load_info *info) - ksym = resolve_symbol_wait(mod, info, name); - /* Ok if resolved. */ - if (ksym && !IS_ERR(ksym)) { -+ pax_open_kernel(); - sym[i].st_value = ksym->value; -+ pax_close_kernel(); - break; - } - -@@ -1941,11 +1970,20 @@ static int simplify_symbols(struct module *mod, const struct load_info *info) - secbase = (unsigned long)mod_percpu(mod); - else - secbase = info->sechdrs[sym[i].st_shndx].sh_addr; -+ pax_open_kernel(); - sym[i].st_value += secbase; -+ pax_close_kernel(); - break; - } - } - -+#ifdef CONFIG_GRKERNSEC_MODHARDEN -+ if (is_fs_load && !register_filesystem_found) { -+ printk(KERN_ALERT "grsec: Denied attempt to load non-fs module %.64s through mount\n", mod->name); -+ ret = -EPERM; -+ } -+#endif -+ - return ret; - } - -@@ -2049,22 +2087,12 @@ static void layout_sections(struct module *mod, struct load_info *info) - || s->sh_entsize != ~0UL - || strstarts(sname, ".init")) - continue; -- s->sh_entsize = get_offset(mod, &mod->core_size, s, i); -+ if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC)) -+ s->sh_entsize = get_offset(mod, &mod->core_size_rw, s, i); -+ else -+ s->sh_entsize = get_offset(mod, &mod->core_size_rx, s, i); - pr_debug("\t%s\n", sname); - } -- switch (m) { -- case 0: /* executable */ -- mod->core_size = debug_align(mod->core_size); -- mod->core_text_size = mod->core_size; -- break; -- case 1: /* RO: text and ro-data */ -- mod->core_size = debug_align(mod->core_size); -- mod->core_ro_size = mod->core_size; -- break; -- case 3: /* whole core */ -- mod->core_size = debug_align(mod->core_size); -- break; -- } - } - - pr_debug("Init section allocation order:\n"); -@@ -2078,23 +2106,13 @@ static void layout_sections(struct module *mod, struct load_info *info) - || s->sh_entsize != ~0UL - || !strstarts(sname, ".init")) - continue; -- s->sh_entsize = (get_offset(mod, &mod->init_size, s, i) -- | INIT_OFFSET_MASK); -+ if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC)) -+ s->sh_entsize = get_offset(mod, &mod->init_size_rw, s, i); -+ else -+ s->sh_entsize = get_offset(mod, &mod->init_size_rx, s, i); -+ s->sh_entsize |= INIT_OFFSET_MASK; - pr_debug("\t%s\n", sname); - } -- switch (m) { -- case 0: /* executable */ -- mod->init_size = debug_align(mod->init_size); -- mod->init_text_size = mod->init_size; -- break; -- case 1: /* RO: text and ro-data */ -- mod->init_size = debug_align(mod->init_size); -- mod->init_ro_size = mod->init_size; -- break; -- case 3: /* whole init */ -- mod->init_size = debug_align(mod->init_size); -- break; -- } - } - } - -@@ -2266,7 +2284,7 @@ static void layout_symtab(struct module *mod, struct load_info *info) - - /* Put symbol section at end of init part of module. */ - symsect->sh_flags |= SHF_ALLOC; -- symsect->sh_entsize = get_offset(mod, &mod->init_size, symsect, -+ symsect->sh_entsize = get_offset(mod, &mod->init_size_rx, symsect, - info->index.sym) | INIT_OFFSET_MASK; - pr_debug("\t%s\n", info->secstrings + symsect->sh_name); - -@@ -2281,13 +2299,13 @@ static void layout_symtab(struct module *mod, struct load_info *info) - } - - /* Append room for core symbols at end of core part. */ -- info->symoffs = ALIGN(mod->core_size, symsect->sh_addralign ?: 1); -- info->stroffs = mod->core_size = info->symoffs + ndst * sizeof(Elf_Sym); -- mod->core_size += strtab_size; -+ info->symoffs = ALIGN(mod->core_size_rx, symsect->sh_addralign ?: 1); -+ info->stroffs = mod->core_size_rx = info->symoffs + ndst * sizeof(Elf_Sym); -+ mod->core_size_rx += strtab_size; - - /* Put string table section at end of init part of module. */ - strsect->sh_flags |= SHF_ALLOC; -- strsect->sh_entsize = get_offset(mod, &mod->init_size, strsect, -+ strsect->sh_entsize = get_offset(mod, &mod->init_size_rx, strsect, - info->index.str) | INIT_OFFSET_MASK; - pr_debug("\t%s\n", info->secstrings + strsect->sh_name); - } -@@ -2305,12 +2323,14 @@ static void add_kallsyms(struct module *mod, const struct load_info *info) - /* Make sure we get permanent strtab: don't use info->strtab. */ - mod->strtab = (void *)info->sechdrs[info->index.str].sh_addr; - -+ pax_open_kernel(); -+ - /* Set types up while we still have access to sections. */ - for (i = 0; i < mod->num_symtab; i++) - mod->symtab[i].st_info = elf_type(&mod->symtab[i], info); - -- mod->core_symtab = dst = mod->module_core + info->symoffs; -- mod->core_strtab = s = mod->module_core + info->stroffs; -+ mod->core_symtab = dst = mod->module_core_rx + info->symoffs; -+ mod->core_strtab = s = mod->module_core_rx + info->stroffs; - src = mod->symtab; - *dst = *src; - *s++ = 0; -@@ -2323,6 +2343,8 @@ static void add_kallsyms(struct module *mod, const struct load_info *info) - s += strlcpy(s, &mod->strtab[src->st_name], KSYM_NAME_LEN) + 1; - } - mod->core_num_syms = ndst; -+ -+ pax_close_kernel(); - } - #else - static inline void layout_symtab(struct module *mod, struct load_info *info) -@@ -2356,17 +2378,33 @@ void * __weak module_alloc(unsigned long size) - return size == 0 ? NULL : vmalloc_exec(size); - } - --static void *module_alloc_update_bounds(unsigned long size) -+static void *module_alloc_update_bounds_rw(unsigned long size) - { - void *ret = module_alloc(size); - - if (ret) { - mutex_lock(&module_mutex); - /* Update module bounds. */ -- if ((unsigned long)ret < module_addr_min) -- module_addr_min = (unsigned long)ret; -- if ((unsigned long)ret + size > module_addr_max) -- module_addr_max = (unsigned long)ret + size; -+ if ((unsigned long)ret < module_addr_min_rw) -+ module_addr_min_rw = (unsigned long)ret; -+ if ((unsigned long)ret + size > module_addr_max_rw) -+ module_addr_max_rw = (unsigned long)ret + size; -+ mutex_unlock(&module_mutex); -+ } -+ return ret; -+} -+ -+static void *module_alloc_update_bounds_rx(unsigned long size) -+{ -+ void *ret = module_alloc_exec(size); -+ -+ if (ret) { -+ mutex_lock(&module_mutex); -+ /* Update module bounds. */ -+ if ((unsigned long)ret < module_addr_min_rx) -+ module_addr_min_rx = (unsigned long)ret; -+ if ((unsigned long)ret + size > module_addr_max_rx) -+ module_addr_max_rx = (unsigned long)ret + size; - mutex_unlock(&module_mutex); - } - return ret; -@@ -2543,8 +2581,14 @@ static struct module *setup_load_info(struct load_info *info) - static int check_modinfo(struct module *mod, struct load_info *info) - { - const char *modmagic = get_modinfo(info, "vermagic"); -+ const char *license = get_modinfo(info, "license"); - int err; - -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR -+ if (!license || !license_is_gpl_compatible(license)) -+ return -ENOEXEC; -+#endif -+ - /* This is allowed: modprobe --force will invalidate it. */ - if (!modmagic) { - err = try_to_force_load(mod, "bad vermagic"); -@@ -2567,7 +2611,7 @@ static int check_modinfo(struct module *mod, struct load_info *info) - } - - /* Set up license info based on the info section */ -- set_license(mod, get_modinfo(info, "license")); -+ set_license(mod, license); - - return 0; - } -@@ -2661,7 +2705,7 @@ static int move_module(struct module *mod, struct load_info *info) - void *ptr; - - /* Do the allocs. */ -- ptr = module_alloc_update_bounds(mod->core_size); -+ ptr = module_alloc_update_bounds_rw(mod->core_size_rw); - /* - * The pointer to this block is stored in the module structure - * which is inside the block. Just mark it as not being a -@@ -2671,23 +2715,50 @@ static int move_module(struct module *mod, struct load_info *info) - if (!ptr) - return -ENOMEM; - -- memset(ptr, 0, mod->core_size); -- mod->module_core = ptr; -+ memset(ptr, 0, mod->core_size_rw); -+ mod->module_core_rw = ptr; - -- ptr = module_alloc_update_bounds(mod->init_size); -+ ptr = module_alloc_update_bounds_rw(mod->init_size_rw); - /* - * The pointer to this block is stored in the module structure - * which is inside the block. This block doesn't need to be - * scanned as it contains data and code that will be freed - * after the module is initialized. - */ -- kmemleak_ignore(ptr); -- if (!ptr && mod->init_size) { -- module_free(mod, mod->module_core); -+ kmemleak_not_leak(ptr); -+ if (!ptr && mod->init_size_rw) { -+ module_free(mod, mod->module_core_rw); - return -ENOMEM; - } -- memset(ptr, 0, mod->init_size); -- mod->module_init = ptr; -+ memset(ptr, 0, mod->init_size_rw); -+ mod->module_init_rw = ptr; -+ -+ ptr = module_alloc_update_bounds_rx(mod->core_size_rx); -+ kmemleak_not_leak(ptr); -+ if (!ptr) { -+ module_free(mod, mod->module_init_rw); -+ module_free(mod, mod->module_core_rw); -+ return -ENOMEM; -+ } -+ -+ pax_open_kernel(); -+ memset(ptr, 0, mod->core_size_rx); -+ pax_close_kernel(); -+ mod->module_core_rx = ptr; -+ -+ ptr = module_alloc_update_bounds_rx(mod->init_size_rx); -+ kmemleak_not_leak(ptr); -+ if (!ptr && mod->init_size_rx) { -+ module_free_exec(mod, mod->module_core_rx); -+ module_free(mod, mod->module_init_rw); -+ module_free(mod, mod->module_core_rw); -+ return -ENOMEM; -+ } -+ -+ pax_open_kernel(); -+ memset(ptr, 0, mod->init_size_rx); -+ pax_close_kernel(); -+ mod->module_init_rx = ptr; - - /* Transfer each section which specifies SHF_ALLOC */ - pr_debug("final section addresses:\n"); -@@ -2698,16 +2769,45 @@ static int move_module(struct module *mod, struct load_info *info) - if (!(shdr->sh_flags & SHF_ALLOC)) - continue; - -- if (shdr->sh_entsize & INIT_OFFSET_MASK) -- dest = mod->module_init -- + (shdr->sh_entsize & ~INIT_OFFSET_MASK); -- else -- dest = mod->module_core + shdr->sh_entsize; -+ if (shdr->sh_entsize & INIT_OFFSET_MASK) { -+ if ((shdr->sh_flags & SHF_WRITE) || !(shdr->sh_flags & SHF_ALLOC)) -+ dest = mod->module_init_rw -+ + (shdr->sh_entsize & ~INIT_OFFSET_MASK); -+ else -+ dest = mod->module_init_rx -+ + (shdr->sh_entsize & ~INIT_OFFSET_MASK); -+ } else { -+ if ((shdr->sh_flags & SHF_WRITE) || !(shdr->sh_flags & SHF_ALLOC)) -+ dest = mod->module_core_rw + shdr->sh_entsize; -+ else -+ dest = mod->module_core_rx + shdr->sh_entsize; -+ } -+ -+ if (shdr->sh_type != SHT_NOBITS) { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+#ifdef CONFIG_X86_64 -+ if ((shdr->sh_flags & SHF_WRITE) && (shdr->sh_flags & SHF_EXECINSTR)) -+ set_memory_x((unsigned long)dest, (shdr->sh_size + PAGE_SIZE) >> PAGE_SHIFT); -+#endif -+ if (!(shdr->sh_flags & SHF_WRITE) && (shdr->sh_flags & SHF_ALLOC)) { -+ pax_open_kernel(); -+ memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size); -+ pax_close_kernel(); -+ } else -+#endif - -- if (shdr->sh_type != SHT_NOBITS) - memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size); -+ } - /* Update sh_addr to point to copy in image. */ -- shdr->sh_addr = (unsigned long)dest; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ if (shdr->sh_flags & SHF_EXECINSTR) -+ shdr->sh_addr = ktva_ktla((unsigned long)dest); -+ else -+#endif -+ -+ shdr->sh_addr = (unsigned long)dest; - pr_debug("\t0x%lx %s\n", - (long)shdr->sh_addr, info->secstrings + shdr->sh_name); - } -@@ -2758,12 +2858,12 @@ static void flush_module_icache(const struct module *mod) - * Do it before processing of module parameters, so the module - * can provide parameter accessor functions of its own. - */ -- if (mod->module_init) -- flush_icache_range((unsigned long)mod->module_init, -- (unsigned long)mod->module_init -- + mod->init_size); -- flush_icache_range((unsigned long)mod->module_core, -- (unsigned long)mod->module_core + mod->core_size); -+ if (mod->module_init_rx) -+ flush_icache_range((unsigned long)mod->module_init_rx, -+ (unsigned long)mod->module_init_rx -+ + mod->init_size_rx); -+ flush_icache_range((unsigned long)mod->module_core_rx, -+ (unsigned long)mod->module_core_rx + mod->core_size_rx); - - set_fs(old_fs); - } -@@ -2833,8 +2933,10 @@ out: - static void module_deallocate(struct module *mod, struct load_info *info) - { - percpu_modfree(mod); -- module_free(mod, mod->module_init); -- module_free(mod, mod->module_core); -+ module_free_exec(mod, mod->module_init_rx); -+ module_free_exec(mod, mod->module_core_rx); -+ module_free(mod, mod->module_init_rw); -+ module_free(mod, mod->module_core_rw); - } - - int __weak module_finalize(const Elf_Ehdr *hdr, -@@ -2898,9 +3000,38 @@ static struct module *load_module(void __user *umod, - if (err) - goto free_unload; - -+ /* Now copy in args */ -+ mod->args = strndup_user(uargs, ~0UL >> 1); -+ if (IS_ERR(mod->args)) { -+ err = PTR_ERR(mod->args); -+ goto free_unload; -+ } -+ - /* Set up MODINFO_ATTR fields */ - setup_modinfo(mod, &info); - -+#ifdef CONFIG_GRKERNSEC_MODHARDEN -+ { -+ char *p, *p2; -+ -+ if (strstr(mod->args, "grsec_modharden_netdev")) { -+ printk(KERN_ALERT "grsec: denied auto-loading kernel module for a network device with CAP_SYS_MODULE (deprecated). Use CAP_NET_ADMIN and alias netdev-%.64s instead.", mod->name); -+ err = -EPERM; -+ goto free_modinfo; -+ } else if ((p = strstr(mod->args, "grsec_modharden_normal"))) { -+ p += strlen("grsec_modharden_normal"); -+ p2 = strstr(p, "_"); -+ if (p2) { -+ *p2 = '\0'; -+ printk(KERN_ALERT "grsec: denied kernel module auto-load of %.64s by uid %.9s\n", mod->name, p); -+ *p2 = '_'; -+ } -+ err = -EPERM; -+ goto free_modinfo; -+ } -+ } -+#endif -+ - /* Fix up syms, so that st_value is a pointer to location. */ - err = simplify_symbols(mod, &info); - if (err < 0) -@@ -2916,13 +3047,6 @@ static struct module *load_module(void __user *umod, - - flush_module_icache(mod); - -- /* Now copy in args */ -- mod->args = strndup_user(uargs, ~0UL >> 1); -- if (IS_ERR(mod->args)) { -- err = PTR_ERR(mod->args); -- goto free_arch_cleanup; -- } -- - /* Mark state as coming so strong_try_module_get() ignores us. */ - mod->state = MODULE_STATE_COMING; - -@@ -2980,11 +3104,10 @@ static struct module *load_module(void __user *umod, - unlock: - mutex_unlock(&module_mutex); - synchronize_sched(); -- kfree(mod->args); -- free_arch_cleanup: - module_arch_cleanup(mod); - free_modinfo: - free_modinfo(mod); -+ kfree(mod->args); - free_unload: - module_unload_free(mod); - free_module: -@@ -3025,16 +3148,16 @@ SYSCALL_DEFINE3(init_module, void __user *, umod, - MODULE_STATE_COMING, mod); - - /* Set RO and NX regions for core */ -- set_section_ro_nx(mod->module_core, -- mod->core_text_size, -- mod->core_ro_size, -- mod->core_size); -+ set_section_ro_nx(mod->module_core_rx, -+ mod->core_size_rx, -+ mod->core_size_rx, -+ mod->core_size_rx); - - /* Set RO and NX regions for init */ -- set_section_ro_nx(mod->module_init, -- mod->init_text_size, -- mod->init_ro_size, -- mod->init_size); -+ set_section_ro_nx(mod->module_init_rx, -+ mod->init_size_rx, -+ mod->init_size_rx, -+ mod->init_size_rx); - - do_mod_ctors(mod); - /* Start the module */ -@@ -3080,11 +3203,12 @@ SYSCALL_DEFINE3(init_module, void __user *, umod, - mod->strtab = mod->core_strtab; - #endif - unset_module_init_ro_nx(mod); -- module_free(mod, mod->module_init); -- mod->module_init = NULL; -- mod->init_size = 0; -- mod->init_ro_size = 0; -- mod->init_text_size = 0; -+ module_free(mod, mod->module_init_rw); -+ module_free_exec(mod, mod->module_init_rx); -+ mod->module_init_rw = NULL; -+ mod->module_init_rx = NULL; -+ mod->init_size_rw = 0; -+ mod->init_size_rx = 0; - mutex_unlock(&module_mutex); - - return 0; -@@ -3115,10 +3239,16 @@ static const char *get_ksymbol(struct module *mod, - unsigned long nextval; - - /* At worse, next value is at end of module */ -- if (within_module_init(addr, mod)) -- nextval = (unsigned long)mod->module_init+mod->init_text_size; -+ if (within_module_init_rx(addr, mod)) -+ nextval = (unsigned long)mod->module_init_rx+mod->init_size_rx; -+ else if (within_module_init_rw(addr, mod)) -+ nextval = (unsigned long)mod->module_init_rw+mod->init_size_rw; -+ else if (within_module_core_rx(addr, mod)) -+ nextval = (unsigned long)mod->module_core_rx+mod->core_size_rx; -+ else if (within_module_core_rw(addr, mod)) -+ nextval = (unsigned long)mod->module_core_rw+mod->core_size_rw; - else -- nextval = (unsigned long)mod->module_core+mod->core_text_size; -+ return NULL; - - /* Scan for closest preceding symbol, and next symbol. (ELF - starts real symbols at 1). */ -@@ -3353,7 +3483,7 @@ static int m_show(struct seq_file *m, void *p) - char buf[8]; - - seq_printf(m, "%s %u", -- mod->name, mod->init_size + mod->core_size); -+ mod->name, mod->init_size_rx + mod->init_size_rw + mod->core_size_rx + mod->core_size_rw); - print_unload_info(m, mod); - - /* Informative for users. */ -@@ -3362,7 +3492,7 @@ static int m_show(struct seq_file *m, void *p) - mod->state == MODULE_STATE_COMING ? "Loading": - "Live"); - /* Used by oprofile and other similar tools. */ -- seq_printf(m, " 0x%pK", mod->module_core); -+ seq_printf(m, " 0x%pK 0x%pK", mod->module_core_rx, mod->module_core_rw); - - /* Taints info */ - if (mod->taints) -@@ -3398,7 +3528,17 @@ static const struct file_operations proc_modules_operations = { - - static int __init proc_modules_init(void) - { -+#ifndef CONFIG_GRKERNSEC_HIDESYM -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ proc_create("modules", S_IRUSR, NULL, &proc_modules_operations); -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ proc_create("modules", S_IRUSR | S_IRGRP, NULL, &proc_modules_operations); -+#else - proc_create("modules", 0, NULL, &proc_modules_operations); -+#endif -+#else -+ proc_create("modules", S_IRUSR, NULL, &proc_modules_operations); -+#endif - return 0; - } - module_init(proc_modules_init); -@@ -3457,12 +3597,12 @@ struct module *__module_address(unsigned long addr) - { - struct module *mod; - -- if (addr < module_addr_min || addr > module_addr_max) -+ if ((addr < module_addr_min_rx || addr > module_addr_max_rx) && -+ (addr < module_addr_min_rw || addr > module_addr_max_rw)) - return NULL; - - list_for_each_entry_rcu(mod, &modules, list) -- if (within_module_core(addr, mod) -- || within_module_init(addr, mod)) -+ if (within_module_init(addr, mod) || within_module_core(addr, mod)) - return mod; - return NULL; - } -@@ -3496,11 +3636,20 @@ bool is_module_text_address(unsigned long addr) - */ - struct module *__module_text_address(unsigned long addr) - { -- struct module *mod = __module_address(addr); -+ struct module *mod; -+ -+#ifdef CONFIG_X86_32 -+ addr = ktla_ktva(addr); -+#endif -+ -+ if (addr < module_addr_min_rx || addr > module_addr_max_rx) -+ return NULL; -+ -+ mod = __module_address(addr); -+ - if (mod) { - /* Make sure it's within the text section. */ -- if (!within(addr, mod->module_init, mod->init_text_size) -- && !within(addr, mod->module_core, mod->core_text_size)) -+ if (!within_module_init_rx(addr, mod) && !within_module_core_rx(addr, mod)) - mod = NULL; - } - return mod; -diff --git a/kernel/mutex-debug.c b/kernel/mutex-debug.c -index 7e3443f..b2a1e6b 100644 ---- a/kernel/mutex-debug.c -+++ b/kernel/mutex-debug.c -@@ -49,21 +49,21 @@ void debug_mutex_free_waiter(struct mutex_waiter *waiter) - } - - void debug_mutex_add_waiter(struct mutex *lock, struct mutex_waiter *waiter, -- struct thread_info *ti) -+ struct task_struct *task) - { - SMP_DEBUG_LOCKS_WARN_ON(!spin_is_locked(&lock->wait_lock)); - - /* Mark the current thread as blocked on the lock: */ -- ti->task->blocked_on = waiter; -+ task->blocked_on = waiter; - } - - void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter, -- struct thread_info *ti) -+ struct task_struct *task) - { - DEBUG_LOCKS_WARN_ON(list_empty(&waiter->list)); -- DEBUG_LOCKS_WARN_ON(waiter->task != ti->task); -- DEBUG_LOCKS_WARN_ON(ti->task->blocked_on != waiter); -- ti->task->blocked_on = NULL; -+ DEBUG_LOCKS_WARN_ON(waiter->task != task); -+ DEBUG_LOCKS_WARN_ON(task->blocked_on != waiter); -+ task->blocked_on = NULL; - - list_del_init(&waiter->list); - waiter->task = NULL; -diff --git a/kernel/mutex-debug.h b/kernel/mutex-debug.h -index 0799fd3..d06ae3b 100644 ---- a/kernel/mutex-debug.h -+++ b/kernel/mutex-debug.h -@@ -20,9 +20,9 @@ extern void debug_mutex_wake_waiter(struct mutex *lock, - extern void debug_mutex_free_waiter(struct mutex_waiter *waiter); - extern void debug_mutex_add_waiter(struct mutex *lock, - struct mutex_waiter *waiter, -- struct thread_info *ti); -+ struct task_struct *task); - extern void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter, -- struct thread_info *ti); -+ struct task_struct *task); - extern void debug_mutex_unlock(struct mutex *lock); - extern void debug_mutex_init(struct mutex *lock, const char *name, - struct lock_class_key *key); -diff --git a/kernel/mutex.c b/kernel/mutex.c -index a307cc9..27fd2e9 100644 ---- a/kernel/mutex.c -+++ b/kernel/mutex.c -@@ -198,7 +198,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass, - spin_lock_mutex(&lock->wait_lock, flags); - - debug_mutex_lock_common(lock, &waiter); -- debug_mutex_add_waiter(lock, &waiter, task_thread_info(task)); -+ debug_mutex_add_waiter(lock, &waiter, task); - - /* add waiting tasks to the end of the waitqueue (FIFO): */ - list_add_tail(&waiter.list, &lock->wait_list); -@@ -227,8 +227,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass, - * TASK_UNINTERRUPTIBLE case.) - */ - if (unlikely(signal_pending_state(state, task))) { -- mutex_remove_waiter(lock, &waiter, -- task_thread_info(task)); -+ mutex_remove_waiter(lock, &waiter, task); - mutex_release(&lock->dep_map, 1, ip); - spin_unlock_mutex(&lock->wait_lock, flags); - -@@ -247,7 +246,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass, - done: - lock_acquired(&lock->dep_map, ip); - /* got the lock - rejoice! */ -- mutex_remove_waiter(lock, &waiter, current_thread_info()); -+ mutex_remove_waiter(lock, &waiter, task); - mutex_set_owner(lock); - - /* set it to 0 if there are no waiters left: */ -diff --git a/kernel/panic.c b/kernel/panic.c -index 9ed023b..e49543e 100644 ---- a/kernel/panic.c -+++ b/kernel/panic.c -@@ -402,7 +402,7 @@ static void warn_slowpath_common(const char *file, int line, void *caller, - const char *board; - - printk(KERN_WARNING "------------[ cut here ]------------\n"); -- printk(KERN_WARNING "WARNING: at %s:%d %pS()\n", file, line, caller); -+ printk(KERN_WARNING "WARNING: at %s:%d %pA()\n", file, line, caller); - board = dmi_get_system_info(DMI_PRODUCT_NAME); - if (board) - printk(KERN_WARNING "Hardware name: %s\n", board); -@@ -457,7 +457,8 @@ EXPORT_SYMBOL(warn_slowpath_null); - */ - void __stack_chk_fail(void) - { -- panic("stack-protector: Kernel stack is corrupted in: %p\n", -+ dump_stack(); -+ panic("stack-protector: Kernel stack is corrupted in: %pA\n", - __builtin_return_address(0)); - } - EXPORT_SYMBOL(__stack_chk_fail); -diff --git a/kernel/pid.c b/kernel/pid.c -index 9f08dfa..6765c40 100644 ---- a/kernel/pid.c -+++ b/kernel/pid.c -@@ -33,6 +33,7 @@ - #include <linux/rculist.h> - #include <linux/bootmem.h> - #include <linux/hash.h> -+#include <linux/security.h> - #include <linux/pid_namespace.h> - #include <linux/init_task.h> - #include <linux/syscalls.h> -@@ -45,7 +46,7 @@ struct pid init_struct_pid = INIT_STRUCT_PID; - - int pid_max = PID_MAX_DEFAULT; - --#define RESERVED_PIDS 300 -+#define RESERVED_PIDS 500 - - int pid_max_min = RESERVED_PIDS + 1; - int pid_max_max = PID_MAX_LIMIT; -@@ -420,10 +421,18 @@ EXPORT_SYMBOL(pid_task); - */ - struct task_struct *find_task_by_pid_ns(pid_t nr, struct pid_namespace *ns) - { -+ struct task_struct *task; -+ - rcu_lockdep_assert(rcu_read_lock_held(), - "find_task_by_pid_ns() needs rcu_read_lock()" - " protection"); -- return pid_task(find_pid_ns(nr, ns), PIDTYPE_PID); -+ -+ task = pid_task(find_pid_ns(nr, ns), PIDTYPE_PID); -+ -+ if (gr_pid_is_chrooted(task)) -+ return NULL; -+ -+ return task; - } - - struct task_struct *find_task_by_vpid(pid_t vnr) -@@ -431,6 +440,14 @@ struct task_struct *find_task_by_vpid(pid_t vnr) - return find_task_by_pid_ns(vnr, current->nsproxy->pid_ns); - } - -+struct task_struct *find_task_by_vpid_unrestricted(pid_t vnr) -+{ -+ rcu_lockdep_assert(rcu_read_lock_held(), -+ "find_task_by_pid_ns() needs rcu_read_lock()" -+ " protection"); -+ return pid_task(find_pid_ns(vnr, current->nsproxy->pid_ns), PIDTYPE_PID); -+} -+ - struct pid *get_task_pid(struct task_struct *task, enum pid_type type) - { - struct pid *pid; -diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c -index 125cb67..a4d1c30 100644 ---- a/kernel/posix-cpu-timers.c -+++ b/kernel/posix-cpu-timers.c -@@ -6,6 +6,7 @@ - #include <linux/posix-timers.h> - #include <linux/errno.h> - #include <linux/math64.h> -+#include <linux/security.h> - #include <asm/uaccess.h> - #include <linux/kernel_stat.h> - #include <trace/events/timer.h> -@@ -1578,14 +1579,14 @@ struct k_clock clock_posix_cpu = { - - static __init int init_posix_cpu_timers(void) - { -- struct k_clock process = { -+ static struct k_clock process = { - .clock_getres = process_cpu_clock_getres, - .clock_get = process_cpu_clock_get, - .timer_create = process_cpu_timer_create, - .nsleep = process_cpu_nsleep, - .nsleep_restart = process_cpu_nsleep_restart, - }; -- struct k_clock thread = { -+ static struct k_clock thread = { - .clock_getres = thread_cpu_clock_getres, - .clock_get = thread_cpu_clock_get, - .timer_create = thread_cpu_timer_create, -diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c -index 69185ae..cc2847a 100644 ---- a/kernel/posix-timers.c -+++ b/kernel/posix-timers.c -@@ -43,6 +43,7 @@ - #include <linux/idr.h> - #include <linux/posix-clock.h> - #include <linux/posix-timers.h> -+#include <linux/grsecurity.h> - #include <linux/syscalls.h> - #include <linux/wait.h> - #include <linux/workqueue.h> -@@ -129,7 +130,7 @@ static DEFINE_SPINLOCK(idr_lock); - * which we beg off on and pass to do_sys_settimeofday(). - */ - --static struct k_clock posix_clocks[MAX_CLOCKS]; -+static struct k_clock *posix_clocks[MAX_CLOCKS]; - - /* - * These ones are defined below. -@@ -227,7 +228,7 @@ static int posix_get_boottime(const clockid_t which_clock, struct timespec *tp) - */ - static __init int init_posix_timers(void) - { -- struct k_clock clock_realtime = { -+ static struct k_clock clock_realtime = { - .clock_getres = hrtimer_get_res, - .clock_get = posix_clock_realtime_get, - .clock_set = posix_clock_realtime_set, -@@ -239,7 +240,7 @@ static __init int init_posix_timers(void) - .timer_get = common_timer_get, - .timer_del = common_timer_del, - }; -- struct k_clock clock_monotonic = { -+ static struct k_clock clock_monotonic = { - .clock_getres = hrtimer_get_res, - .clock_get = posix_ktime_get_ts, - .nsleep = common_nsleep, -@@ -249,19 +250,19 @@ static __init int init_posix_timers(void) - .timer_get = common_timer_get, - .timer_del = common_timer_del, - }; -- struct k_clock clock_monotonic_raw = { -+ static struct k_clock clock_monotonic_raw = { - .clock_getres = hrtimer_get_res, - .clock_get = posix_get_monotonic_raw, - }; -- struct k_clock clock_realtime_coarse = { -+ static struct k_clock clock_realtime_coarse = { - .clock_getres = posix_get_coarse_res, - .clock_get = posix_get_realtime_coarse, - }; -- struct k_clock clock_monotonic_coarse = { -+ static struct k_clock clock_monotonic_coarse = { - .clock_getres = posix_get_coarse_res, - .clock_get = posix_get_monotonic_coarse, - }; -- struct k_clock clock_boottime = { -+ static struct k_clock clock_boottime = { - .clock_getres = hrtimer_get_res, - .clock_get = posix_get_boottime, - .nsleep = common_nsleep, -@@ -473,7 +474,7 @@ void posix_timers_register_clock(const clockid_t clock_id, - return; - } - -- posix_clocks[clock_id] = *new_clock; -+ posix_clocks[clock_id] = new_clock; - } - EXPORT_SYMBOL_GPL(posix_timers_register_clock); - -@@ -519,9 +520,9 @@ static struct k_clock *clockid_to_kclock(const clockid_t id) - return (id & CLOCKFD_MASK) == CLOCKFD ? - &clock_posix_dynamic : &clock_posix_cpu; - -- if (id >= MAX_CLOCKS || !posix_clocks[id].clock_getres) -+ if (id >= MAX_CLOCKS || !posix_clocks[id] || !posix_clocks[id]->clock_getres) - return NULL; -- return &posix_clocks[id]; -+ return posix_clocks[id]; - } - - static int common_timer_create(struct k_itimer *new_timer) -@@ -959,6 +960,13 @@ SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock, - if (copy_from_user(&new_tp, tp, sizeof (*tp))) - return -EFAULT; - -+ /* only the CLOCK_REALTIME clock can be set, all other clocks -+ have their clock_set fptr set to a nosettime dummy function -+ CLOCK_REALTIME has a NULL clock_set fptr which causes it to -+ call common_clock_set, which calls do_sys_settimeofday, which -+ we hook -+ */ -+ - return kc->clock_set(which_clock, &new_tp); - } - -diff --git a/kernel/power/poweroff.c b/kernel/power/poweroff.c -index d523593..68197a4 100644 ---- a/kernel/power/poweroff.c -+++ b/kernel/power/poweroff.c -@@ -37,7 +37,7 @@ static struct sysrq_key_op sysrq_poweroff_op = { - .enable_mask = SYSRQ_ENABLE_BOOT, - }; - --static int pm_sysrq_init(void) -+static int __init pm_sysrq_init(void) - { - register_sysrq_key('o', &sysrq_poweroff_op); - return 0; -diff --git a/kernel/power/process.c b/kernel/power/process.c -index 19db29f..33b52b6 100644 ---- a/kernel/power/process.c -+++ b/kernel/power/process.c -@@ -33,6 +33,7 @@ static int try_to_freeze_tasks(bool user_only) - u64 elapsed_csecs64; - unsigned int elapsed_csecs; - bool wakeup = false; -+ bool timedout = false; - - do_gettimeofday(&start); - -@@ -43,6 +44,8 @@ static int try_to_freeze_tasks(bool user_only) - - while (true) { - todo = 0; -+ if (time_after(jiffies, end_time)) -+ timedout = true; - read_lock(&tasklist_lock); - do_each_thread(g, p) { - if (p == current || !freeze_task(p)) -@@ -58,9 +61,13 @@ static int try_to_freeze_tasks(bool user_only) - * guaranteed that TASK_STOPPED/TRACED -> TASK_RUNNING - * transition can't race with task state testing here. - */ -- if (!task_is_stopped_or_traced(p) && -- !freezer_should_skip(p)) -+ if (!task_is_stopped_or_traced(p) && !freezer_should_skip(p)) { - todo++; -+ if (timedout) { -+ printk(KERN_ERR "Task refusing to freeze:\n"); -+ sched_show_task(p); -+ } -+ } - } while_each_thread(g, p); - read_unlock(&tasklist_lock); - -@@ -69,7 +76,7 @@ static int try_to_freeze_tasks(bool user_only) - todo += wq_busy; - } - -- if (!todo || time_after(jiffies, end_time)) -+ if (!todo || timedout) - break; - - if (pm_wakeup_pending()) { -diff --git a/kernel/printk.c b/kernel/printk.c -index b663c2c..1d6ba7a 100644 ---- a/kernel/printk.c -+++ b/kernel/printk.c -@@ -316,6 +316,11 @@ static int check_syslog_permissions(int type, bool from_file) - if (from_file && type != SYSLOG_ACTION_OPEN) - return 0; - -+#ifdef CONFIG_GRKERNSEC_DMESG -+ if (grsec_enable_dmesg && !capable(CAP_SYSLOG) && !capable_nolog(CAP_SYS_ADMIN)) -+ return -EPERM; -+#endif -+ - if (syslog_action_restricted(type)) { - if (capable(CAP_SYSLOG)) - return 0; -diff --git a/kernel/profile.c b/kernel/profile.c -index 76b8e77..a2930e8 100644 ---- a/kernel/profile.c -+++ b/kernel/profile.c -@@ -39,7 +39,7 @@ struct profile_hit { - /* Oprofile timer tick hook */ - static int (*timer_hook)(struct pt_regs *) __read_mostly; - --static atomic_t *prof_buffer; -+static atomic_unchecked_t *prof_buffer; - static unsigned long prof_len, prof_shift; - - int prof_on __read_mostly; -@@ -281,7 +281,7 @@ static void profile_flip_buffers(void) - hits[i].pc = 0; - continue; - } -- atomic_add(hits[i].hits, &prof_buffer[hits[i].pc]); -+ atomic_add_unchecked(hits[i].hits, &prof_buffer[hits[i].pc]); - hits[i].hits = hits[i].pc = 0; - } - } -@@ -342,9 +342,9 @@ static void do_profile_hits(int type, void *__pc, unsigned int nr_hits) - * Add the current hit(s) and flush the write-queue out - * to the global buffer: - */ -- atomic_add(nr_hits, &prof_buffer[pc]); -+ atomic_add_unchecked(nr_hits, &prof_buffer[pc]); - for (i = 0; i < NR_PROFILE_HIT; ++i) { -- atomic_add(hits[i].hits, &prof_buffer[hits[i].pc]); -+ atomic_add_unchecked(hits[i].hits, &prof_buffer[hits[i].pc]); - hits[i].pc = hits[i].hits = 0; - } - out: -@@ -419,7 +419,7 @@ static void do_profile_hits(int type, void *__pc, unsigned int nr_hits) - { - unsigned long pc; - pc = ((unsigned long)__pc - (unsigned long)_stext) >> prof_shift; -- atomic_add(nr_hits, &prof_buffer[min(pc, prof_len - 1)]); -+ atomic_add_unchecked(nr_hits, &prof_buffer[min(pc, prof_len - 1)]); - } - #endif /* !CONFIG_SMP */ - -@@ -517,7 +517,7 @@ read_profile(struct file *file, char __user *buf, size_t count, loff_t *ppos) - return -EFAULT; - buf++; p++; count--; read++; - } -- pnt = (char *)prof_buffer + p - sizeof(atomic_t); -+ pnt = (char *)prof_buffer + p - sizeof(atomic_unchecked_t); - if (copy_to_user(buf, (void *)pnt, count)) - return -EFAULT; - read += count; -@@ -548,7 +548,7 @@ static ssize_t write_profile(struct file *file, const char __user *buf, - } - #endif - profile_discard_flip_buffers(); -- memset(prof_buffer, 0, prof_len * sizeof(atomic_t)); -+ memset(prof_buffer, 0, prof_len * sizeof(atomic_unchecked_t)); - return count; - } - -diff --git a/kernel/ptrace.c b/kernel/ptrace.c -index ee8d49b..bd3d790 100644 ---- a/kernel/ptrace.c -+++ b/kernel/ptrace.c -@@ -280,7 +280,7 @@ static int ptrace_attach(struct task_struct *task, long request, - - if (seize) - flags |= PT_SEIZED; -- if (ns_capable(task_user_ns(task), CAP_SYS_PTRACE)) -+ if (ns_capable_nolog(task_user_ns(task), CAP_SYS_PTRACE)) - flags |= PT_PTRACE_CAP; - task->ptrace = flags; - -@@ -487,7 +487,7 @@ int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst - break; - return -EIO; - } -- if (copy_to_user(dst, buf, retval)) -+ if (retval > sizeof(buf) || copy_to_user(dst, buf, retval)) - return -EFAULT; - copied += retval; - src += retval; -@@ -672,7 +672,7 @@ int ptrace_request(struct task_struct *child, long request, - bool seized = child->ptrace & PT_SEIZED; - int ret = -EIO; - siginfo_t siginfo, *si; -- void __user *datavp = (void __user *) data; -+ void __user *datavp = (__force void __user *) data; - unsigned long __user *datalp = datavp; - unsigned long flags; - -@@ -874,14 +874,21 @@ SYSCALL_DEFINE4(ptrace, long, request, long, pid, unsigned long, addr, - goto out; - } - -+ if (gr_handle_ptrace(child, request)) { -+ ret = -EPERM; -+ goto out_put_task_struct; -+ } -+ - if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) { - ret = ptrace_attach(child, request, addr, data); - /* - * Some architectures need to do book-keeping after - * a ptrace attach. - */ -- if (!ret) -+ if (!ret) { - arch_ptrace_attach(child); -+ gr_audit_ptrace(child); -+ } - goto out_put_task_struct; - } - -@@ -907,7 +914,7 @@ int generic_ptrace_peekdata(struct task_struct *tsk, unsigned long addr, - copied = access_process_vm(tsk, addr, &tmp, sizeof(tmp), 0); - if (copied != sizeof(tmp)) - return -EIO; -- return put_user(tmp, (unsigned long __user *)data); -+ return put_user(tmp, (__force unsigned long __user *)data); - } - - int generic_ptrace_pokedata(struct task_struct *tsk, unsigned long addr, -@@ -1017,14 +1024,21 @@ asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid, - goto out; - } - -+ if (gr_handle_ptrace(child, request)) { -+ ret = -EPERM; -+ goto out_put_task_struct; -+ } -+ - if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) { - ret = ptrace_attach(child, request, addr, data); - /* - * Some architectures need to do book-keeping after - * a ptrace attach. - */ -- if (!ret) -+ if (!ret) { - arch_ptrace_attach(child); -+ gr_audit_ptrace(child); -+ } - goto out_put_task_struct; - } - -diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c -index 37a5444..eec170a 100644 ---- a/kernel/rcutiny.c -+++ b/kernel/rcutiny.c -@@ -46,7 +46,7 @@ - struct rcu_ctrlblk; - static void invoke_rcu_callbacks(void); - static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp); --static void rcu_process_callbacks(struct softirq_action *unused); -+static void rcu_process_callbacks(void); - static void __call_rcu(struct rcu_head *head, - void (*func)(struct rcu_head *rcu), - struct rcu_ctrlblk *rcp); -@@ -307,7 +307,7 @@ static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp) - rcu_is_callbacks_kthread())); - } - --static void rcu_process_callbacks(struct softirq_action *unused) -+static void rcu_process_callbacks(void) - { - __rcu_process_callbacks(&rcu_sched_ctrlblk); - __rcu_process_callbacks(&rcu_bh_ctrlblk); -diff --git a/kernel/rcutiny_plugin.h b/kernel/rcutiny_plugin.h -index 22ecea0..3789898 100644 ---- a/kernel/rcutiny_plugin.h -+++ b/kernel/rcutiny_plugin.h -@@ -955,7 +955,7 @@ static int rcu_kthread(void *arg) - have_rcu_kthread_work = morework; - local_irq_restore(flags); - if (work) -- rcu_process_callbacks(NULL); -+ rcu_process_callbacks(); - schedule_timeout_interruptible(1); /* Leave CPU for others. */ - } - -diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c -index a89b381..efdcad8 100644 ---- a/kernel/rcutorture.c -+++ b/kernel/rcutorture.c -@@ -158,12 +158,12 @@ static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_count) = - { 0 }; - static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_batch) = - { 0 }; --static atomic_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1]; --static atomic_t n_rcu_torture_alloc; --static atomic_t n_rcu_torture_alloc_fail; --static atomic_t n_rcu_torture_free; --static atomic_t n_rcu_torture_mberror; --static atomic_t n_rcu_torture_error; -+static atomic_unchecked_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1]; -+static atomic_unchecked_t n_rcu_torture_alloc; -+static atomic_unchecked_t n_rcu_torture_alloc_fail; -+static atomic_unchecked_t n_rcu_torture_free; -+static atomic_unchecked_t n_rcu_torture_mberror; -+static atomic_unchecked_t n_rcu_torture_error; - static long n_rcu_torture_boost_ktrerror; - static long n_rcu_torture_boost_rterror; - static long n_rcu_torture_boost_failure; -@@ -253,11 +253,11 @@ rcu_torture_alloc(void) - - spin_lock_bh(&rcu_torture_lock); - if (list_empty(&rcu_torture_freelist)) { -- atomic_inc(&n_rcu_torture_alloc_fail); -+ atomic_inc_unchecked(&n_rcu_torture_alloc_fail); - spin_unlock_bh(&rcu_torture_lock); - return NULL; - } -- atomic_inc(&n_rcu_torture_alloc); -+ atomic_inc_unchecked(&n_rcu_torture_alloc); - p = rcu_torture_freelist.next; - list_del_init(p); - spin_unlock_bh(&rcu_torture_lock); -@@ -270,7 +270,7 @@ rcu_torture_alloc(void) - static void - rcu_torture_free(struct rcu_torture *p) - { -- atomic_inc(&n_rcu_torture_free); -+ atomic_inc_unchecked(&n_rcu_torture_free); - spin_lock_bh(&rcu_torture_lock); - list_add_tail(&p->rtort_free, &rcu_torture_freelist); - spin_unlock_bh(&rcu_torture_lock); -@@ -390,7 +390,7 @@ rcu_torture_cb(struct rcu_head *p) - i = rp->rtort_pipe_count; - if (i > RCU_TORTURE_PIPE_LEN) - i = RCU_TORTURE_PIPE_LEN; -- atomic_inc(&rcu_torture_wcount[i]); -+ atomic_inc_unchecked(&rcu_torture_wcount[i]); - if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) { - rp->rtort_mbtest = 0; - rcu_torture_free(rp); -@@ -437,7 +437,7 @@ static void rcu_sync_torture_deferred_free(struct rcu_torture *p) - i = rp->rtort_pipe_count; - if (i > RCU_TORTURE_PIPE_LEN) - i = RCU_TORTURE_PIPE_LEN; -- atomic_inc(&rcu_torture_wcount[i]); -+ atomic_inc_unchecked(&rcu_torture_wcount[i]); - if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) { - rp->rtort_mbtest = 0; - list_del(&rp->rtort_free); -@@ -926,7 +926,7 @@ rcu_torture_writer(void *arg) - i = old_rp->rtort_pipe_count; - if (i > RCU_TORTURE_PIPE_LEN) - i = RCU_TORTURE_PIPE_LEN; -- atomic_inc(&rcu_torture_wcount[i]); -+ atomic_inc_unchecked(&rcu_torture_wcount[i]); - old_rp->rtort_pipe_count++; - cur_ops->deferred_free(old_rp); - } -@@ -1007,7 +1007,7 @@ static void rcu_torture_timer(unsigned long unused) - } - do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu); - if (p->rtort_mbtest == 0) -- atomic_inc(&n_rcu_torture_mberror); -+ atomic_inc_unchecked(&n_rcu_torture_mberror); - spin_lock(&rand_lock); - cur_ops->read_delay(&rand); - n_rcu_torture_timers++; -@@ -1071,7 +1071,7 @@ rcu_torture_reader(void *arg) - } - do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu); - if (p->rtort_mbtest == 0) -- atomic_inc(&n_rcu_torture_mberror); -+ atomic_inc_unchecked(&n_rcu_torture_mberror); - cur_ops->read_delay(&rand); - preempt_disable(); - pipe_count = p->rtort_pipe_count; -@@ -1133,10 +1133,10 @@ rcu_torture_printk(char *page) - rcu_torture_current, - rcu_torture_current_version, - list_empty(&rcu_torture_freelist), -- atomic_read(&n_rcu_torture_alloc), -- atomic_read(&n_rcu_torture_alloc_fail), -- atomic_read(&n_rcu_torture_free), -- atomic_read(&n_rcu_torture_mberror), -+ atomic_read_unchecked(&n_rcu_torture_alloc), -+ atomic_read_unchecked(&n_rcu_torture_alloc_fail), -+ atomic_read_unchecked(&n_rcu_torture_free), -+ atomic_read_unchecked(&n_rcu_torture_mberror), - n_rcu_torture_boost_ktrerror, - n_rcu_torture_boost_rterror, - n_rcu_torture_boost_failure, -@@ -1146,7 +1146,7 @@ rcu_torture_printk(char *page) - n_online_attempts, - n_offline_successes, - n_offline_attempts); -- if (atomic_read(&n_rcu_torture_mberror) != 0 || -+ if (atomic_read_unchecked(&n_rcu_torture_mberror) != 0 || - n_rcu_torture_boost_ktrerror != 0 || - n_rcu_torture_boost_rterror != 0 || - n_rcu_torture_boost_failure != 0) -@@ -1154,7 +1154,7 @@ rcu_torture_printk(char *page) - cnt += sprintf(&page[cnt], "\n%s%s ", torture_type, TORTURE_FLAG); - if (i > 1) { - cnt += sprintf(&page[cnt], "!!! "); -- atomic_inc(&n_rcu_torture_error); -+ atomic_inc_unchecked(&n_rcu_torture_error); - WARN_ON_ONCE(1); - } - cnt += sprintf(&page[cnt], "Reader Pipe: "); -@@ -1168,7 +1168,7 @@ rcu_torture_printk(char *page) - cnt += sprintf(&page[cnt], "Free-Block Circulation: "); - for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) { - cnt += sprintf(&page[cnt], " %d", -- atomic_read(&rcu_torture_wcount[i])); -+ atomic_read_unchecked(&rcu_torture_wcount[i])); - } - cnt += sprintf(&page[cnt], "\n"); - if (cur_ops->stats) -@@ -1676,7 +1676,7 @@ rcu_torture_cleanup(void) - - if (cur_ops->cleanup) - cur_ops->cleanup(); -- if (atomic_read(&n_rcu_torture_error)) -+ if (atomic_read_unchecked(&n_rcu_torture_error)) - rcu_torture_print_module_parms(cur_ops, "End of test: FAILURE"); - else if (n_online_successes != n_online_attempts || - n_offline_successes != n_offline_attempts) -@@ -1744,17 +1744,17 @@ rcu_torture_init(void) - - rcu_torture_current = NULL; - rcu_torture_current_version = 0; -- atomic_set(&n_rcu_torture_alloc, 0); -- atomic_set(&n_rcu_torture_alloc_fail, 0); -- atomic_set(&n_rcu_torture_free, 0); -- atomic_set(&n_rcu_torture_mberror, 0); -- atomic_set(&n_rcu_torture_error, 0); -+ atomic_set_unchecked(&n_rcu_torture_alloc, 0); -+ atomic_set_unchecked(&n_rcu_torture_alloc_fail, 0); -+ atomic_set_unchecked(&n_rcu_torture_free, 0); -+ atomic_set_unchecked(&n_rcu_torture_mberror, 0); -+ atomic_set_unchecked(&n_rcu_torture_error, 0); - n_rcu_torture_boost_ktrerror = 0; - n_rcu_torture_boost_rterror = 0; - n_rcu_torture_boost_failure = 0; - n_rcu_torture_boosts = 0; - for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) -- atomic_set(&rcu_torture_wcount[i], 0); -+ atomic_set_unchecked(&rcu_torture_wcount[i], 0); - for_each_possible_cpu(cpu) { - for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) { - per_cpu(rcu_torture_count, cpu)[i] = 0; -diff --git a/kernel/rcutree.c b/kernel/rcutree.c -index d0c5baf..109b2e7 100644 ---- a/kernel/rcutree.c -+++ b/kernel/rcutree.c -@@ -357,9 +357,9 @@ static void rcu_idle_enter_common(struct rcu_dynticks *rdtp, long long oldval) - rcu_prepare_for_idle(smp_processor_id()); - /* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */ - smp_mb__before_atomic_inc(); /* See above. */ -- atomic_inc(&rdtp->dynticks); -+ atomic_inc_unchecked(&rdtp->dynticks); - smp_mb__after_atomic_inc(); /* Force ordering with next sojourn. */ -- WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1); -+ WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks) & 0x1); - - /* - * The idle task is not permitted to enter the idle loop while -@@ -448,10 +448,10 @@ void rcu_irq_exit(void) - static void rcu_idle_exit_common(struct rcu_dynticks *rdtp, long long oldval) - { - smp_mb__before_atomic_inc(); /* Force ordering w/previous sojourn. */ -- atomic_inc(&rdtp->dynticks); -+ atomic_inc_unchecked(&rdtp->dynticks); - /* CPUs seeing atomic_inc() must see later RCU read-side crit sects */ - smp_mb__after_atomic_inc(); /* See above. */ -- WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1)); -+ WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1)); - rcu_cleanup_after_idle(smp_processor_id()); - trace_rcu_dyntick("End", oldval, rdtp->dynticks_nesting); - if (!is_idle_task(current)) { -@@ -545,14 +545,14 @@ void rcu_nmi_enter(void) - struct rcu_dynticks *rdtp = &__get_cpu_var(rcu_dynticks); - - if (rdtp->dynticks_nmi_nesting == 0 && -- (atomic_read(&rdtp->dynticks) & 0x1)) -+ (atomic_read_unchecked(&rdtp->dynticks) & 0x1)) - return; - rdtp->dynticks_nmi_nesting++; - smp_mb__before_atomic_inc(); /* Force delay from prior write. */ -- atomic_inc(&rdtp->dynticks); -+ atomic_inc_unchecked(&rdtp->dynticks); - /* CPUs seeing atomic_inc() must see later RCU read-side crit sects */ - smp_mb__after_atomic_inc(); /* See above. */ -- WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1)); -+ WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1)); - } - - /** -@@ -571,9 +571,9 @@ void rcu_nmi_exit(void) - return; - /* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */ - smp_mb__before_atomic_inc(); /* See above. */ -- atomic_inc(&rdtp->dynticks); -+ atomic_inc_unchecked(&rdtp->dynticks); - smp_mb__after_atomic_inc(); /* Force delay to next write. */ -- WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1); -+ WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks) & 0x1); - } - - #ifdef CONFIG_PROVE_RCU -@@ -589,7 +589,7 @@ int rcu_is_cpu_idle(void) - int ret; - - preempt_disable(); -- ret = (atomic_read(&__get_cpu_var(rcu_dynticks).dynticks) & 0x1) == 0; -+ ret = (atomic_read_unchecked(&__get_cpu_var(rcu_dynticks).dynticks) & 0x1) == 0; - preempt_enable(); - return ret; - } -@@ -659,7 +659,7 @@ int rcu_is_cpu_rrupt_from_idle(void) - */ - static int dyntick_save_progress_counter(struct rcu_data *rdp) - { -- rdp->dynticks_snap = atomic_add_return(0, &rdp->dynticks->dynticks); -+ rdp->dynticks_snap = atomic_add_return_unchecked(0, &rdp->dynticks->dynticks); - return (rdp->dynticks_snap & 0x1) == 0; - } - -@@ -674,7 +674,7 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp) - unsigned int curr; - unsigned int snap; - -- curr = (unsigned int)atomic_add_return(0, &rdp->dynticks->dynticks); -+ curr = (unsigned int)atomic_add_return_unchecked(0, &rdp->dynticks->dynticks); - snap = (unsigned int)rdp->dynticks_snap; - - /* -@@ -704,10 +704,10 @@ static int jiffies_till_stall_check(void) - * for CONFIG_RCU_CPU_STALL_TIMEOUT. - */ - if (till_stall_check < 3) { -- ACCESS_ONCE(rcu_cpu_stall_timeout) = 3; -+ ACCESS_ONCE_RW(rcu_cpu_stall_timeout) = 3; - till_stall_check = 3; - } else if (till_stall_check > 300) { -- ACCESS_ONCE(rcu_cpu_stall_timeout) = 300; -+ ACCESS_ONCE_RW(rcu_cpu_stall_timeout) = 300; - till_stall_check = 300; - } - return till_stall_check * HZ + RCU_STALL_DELAY_DELTA; -@@ -1766,7 +1766,7 @@ __rcu_process_callbacks(struct rcu_state *rsp, struct rcu_data *rdp) - /* - * Do RCU core processing for the current CPU. - */ --static void rcu_process_callbacks(struct softirq_action *unused) -+static void rcu_process_callbacks(void) - { - trace_rcu_utilization("Start RCU core"); - __rcu_process_callbacks(&rcu_sched_state, -@@ -1949,8 +1949,8 @@ void synchronize_rcu_bh(void) - } - EXPORT_SYMBOL_GPL(synchronize_rcu_bh); - --static atomic_t sync_sched_expedited_started = ATOMIC_INIT(0); --static atomic_t sync_sched_expedited_done = ATOMIC_INIT(0); -+static atomic_unchecked_t sync_sched_expedited_started = ATOMIC_INIT(0); -+static atomic_unchecked_t sync_sched_expedited_done = ATOMIC_INIT(0); - - static int synchronize_sched_expedited_cpu_stop(void *data) - { -@@ -2011,7 +2011,7 @@ void synchronize_sched_expedited(void) - int firstsnap, s, snap, trycount = 0; - - /* Note that atomic_inc_return() implies full memory barrier. */ -- firstsnap = snap = atomic_inc_return(&sync_sched_expedited_started); -+ firstsnap = snap = atomic_inc_return_unchecked(&sync_sched_expedited_started); - get_online_cpus(); - WARN_ON_ONCE(cpu_is_offline(raw_smp_processor_id())); - -@@ -2033,7 +2033,7 @@ void synchronize_sched_expedited(void) - } - - /* Check to see if someone else did our work for us. */ -- s = atomic_read(&sync_sched_expedited_done); -+ s = atomic_read_unchecked(&sync_sched_expedited_done); - if (UINT_CMP_GE((unsigned)s, (unsigned)firstsnap)) { - smp_mb(); /* ensure test happens before caller kfree */ - return; -@@ -2048,7 +2048,7 @@ void synchronize_sched_expedited(void) - * grace period works for us. - */ - get_online_cpus(); -- snap = atomic_read(&sync_sched_expedited_started); -+ snap = atomic_read_unchecked(&sync_sched_expedited_started); - smp_mb(); /* ensure read is before try_stop_cpus(). */ - } - -@@ -2059,12 +2059,12 @@ void synchronize_sched_expedited(void) - * than we did beat us to the punch. - */ - do { -- s = atomic_read(&sync_sched_expedited_done); -+ s = atomic_read_unchecked(&sync_sched_expedited_done); - if (UINT_CMP_GE((unsigned)s, (unsigned)snap)) { - smp_mb(); /* ensure test happens before caller kfree */ - break; - } -- } while (atomic_cmpxchg(&sync_sched_expedited_done, s, snap) != s); -+ } while (atomic_cmpxchg_unchecked(&sync_sched_expedited_done, s, snap) != s); - - put_online_cpus(); - } -@@ -2262,7 +2262,7 @@ rcu_boot_init_percpu_data(int cpu, struct rcu_state *rsp) - rdp->qlen = 0; - rdp->dynticks = &per_cpu(rcu_dynticks, cpu); - WARN_ON_ONCE(rdp->dynticks->dynticks_nesting != DYNTICK_TASK_EXIT_IDLE); -- WARN_ON_ONCE(atomic_read(&rdp->dynticks->dynticks) != 1); -+ WARN_ON_ONCE(atomic_read_unchecked(&rdp->dynticks->dynticks) != 1); - rdp->cpu = cpu; - rdp->rsp = rsp; - raw_spin_unlock_irqrestore(&rnp->lock, flags); -@@ -2290,8 +2290,8 @@ rcu_init_percpu_data(int cpu, struct rcu_state *rsp, int preemptible) - rdp->n_force_qs_snap = rsp->n_force_qs; - rdp->blimit = blimit; - rdp->dynticks->dynticks_nesting = DYNTICK_TASK_EXIT_IDLE; -- atomic_set(&rdp->dynticks->dynticks, -- (atomic_read(&rdp->dynticks->dynticks) & ~0x1) + 1); -+ atomic_set_unchecked(&rdp->dynticks->dynticks, -+ (atomic_read_unchecked(&rdp->dynticks->dynticks) & ~0x1) + 1); - rcu_prepare_for_idle_init(cpu); - raw_spin_unlock(&rnp->lock); /* irqs remain disabled. */ - -diff --git a/kernel/rcutree.h b/kernel/rcutree.h -index cdd1be0..5b2efb4 100644 ---- a/kernel/rcutree.h -+++ b/kernel/rcutree.h -@@ -87,7 +87,7 @@ struct rcu_dynticks { - long long dynticks_nesting; /* Track irq/process nesting level. */ - /* Process level is worth LLONG_MAX/2. */ - int dynticks_nmi_nesting; /* Track NMI nesting level. */ -- atomic_t dynticks; /* Even value for idle, else odd. */ -+ atomic_unchecked_t dynticks;/* Even value for idle, else odd. */ - }; - - /* RCU's kthread states for tracing. */ -diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h -index c023464..7f57225 100644 ---- a/kernel/rcutree_plugin.h -+++ b/kernel/rcutree_plugin.h -@@ -909,7 +909,7 @@ void synchronize_rcu_expedited(void) - - /* Clean up and exit. */ - smp_mb(); /* ensure expedited GP seen before counter increment. */ -- ACCESS_ONCE(sync_rcu_preempt_exp_count)++; -+ ACCESS_ONCE_RW(sync_rcu_preempt_exp_count)++; - unlock_mb_ret: - mutex_unlock(&sync_rcu_preempt_exp_mutex); - mb_ret: -diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c -index ed459ed..a03c3fa 100644 ---- a/kernel/rcutree_trace.c -+++ b/kernel/rcutree_trace.c -@@ -68,7 +68,7 @@ static void print_one_rcu_data(struct seq_file *m, struct rcu_data *rdp) - rdp->passed_quiesce, rdp->passed_quiesce_gpnum, - rdp->qs_pending); - seq_printf(m, " dt=%d/%llx/%d df=%lu", -- atomic_read(&rdp->dynticks->dynticks), -+ atomic_read_unchecked(&rdp->dynticks->dynticks), - rdp->dynticks->dynticks_nesting, - rdp->dynticks->dynticks_nmi_nesting, - rdp->dynticks_fqs); -@@ -140,7 +140,7 @@ static void print_one_rcu_data_csv(struct seq_file *m, struct rcu_data *rdp) - rdp->passed_quiesce, rdp->passed_quiesce_gpnum, - rdp->qs_pending); - seq_printf(m, ",%d,%llx,%d,%lu", -- atomic_read(&rdp->dynticks->dynticks), -+ atomic_read_unchecked(&rdp->dynticks->dynticks), - rdp->dynticks->dynticks_nesting, - rdp->dynticks->dynticks_nmi_nesting, - rdp->dynticks_fqs); -diff --git a/kernel/resource.c b/kernel/resource.c -index 7e8ea66..1efd11f 100644 ---- a/kernel/resource.c -+++ b/kernel/resource.c -@@ -141,8 +141,18 @@ static const struct file_operations proc_iomem_operations = { - - static int __init ioresources_init(void) - { -+#ifdef CONFIG_GRKERNSEC_PROC_ADD -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ proc_create("ioports", S_IRUSR, NULL, &proc_ioports_operations); -+ proc_create("iomem", S_IRUSR, NULL, &proc_iomem_operations); -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ proc_create("ioports", S_IRUSR | S_IRGRP, NULL, &proc_ioports_operations); -+ proc_create("iomem", S_IRUSR | S_IRGRP, NULL, &proc_iomem_operations); -+#endif -+#else - proc_create("ioports", 0, NULL, &proc_ioports_operations); - proc_create("iomem", 0, NULL, &proc_iomem_operations); -+#endif - return 0; - } - __initcall(ioresources_init); -diff --git a/kernel/rtmutex-tester.c b/kernel/rtmutex-tester.c -index 98ec494..4241d6d 100644 ---- a/kernel/rtmutex-tester.c -+++ b/kernel/rtmutex-tester.c -@@ -20,7 +20,7 @@ - #define MAX_RT_TEST_MUTEXES 8 - - static spinlock_t rttest_lock; --static atomic_t rttest_event; -+static atomic_unchecked_t rttest_event; - - struct test_thread_data { - int opcode; -@@ -61,7 +61,7 @@ static int handle_op(struct test_thread_data *td, int lockwakeup) - - case RTTEST_LOCKCONT: - td->mutexes[td->opdata] = 1; -- td->event = atomic_add_return(1, &rttest_event); -+ td->event = atomic_add_return_unchecked(1, &rttest_event); - return 0; - - case RTTEST_RESET: -@@ -74,7 +74,7 @@ static int handle_op(struct test_thread_data *td, int lockwakeup) - return 0; - - case RTTEST_RESETEVENT: -- atomic_set(&rttest_event, 0); -+ atomic_set_unchecked(&rttest_event, 0); - return 0; - - default: -@@ -91,9 +91,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup) - return ret; - - td->mutexes[id] = 1; -- td->event = atomic_add_return(1, &rttest_event); -+ td->event = atomic_add_return_unchecked(1, &rttest_event); - rt_mutex_lock(&mutexes[id]); -- td->event = atomic_add_return(1, &rttest_event); -+ td->event = atomic_add_return_unchecked(1, &rttest_event); - td->mutexes[id] = 4; - return 0; - -@@ -104,9 +104,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup) - return ret; - - td->mutexes[id] = 1; -- td->event = atomic_add_return(1, &rttest_event); -+ td->event = atomic_add_return_unchecked(1, &rttest_event); - ret = rt_mutex_lock_interruptible(&mutexes[id], 0); -- td->event = atomic_add_return(1, &rttest_event); -+ td->event = atomic_add_return_unchecked(1, &rttest_event); - td->mutexes[id] = ret ? 0 : 4; - return ret ? -EINTR : 0; - -@@ -115,9 +115,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup) - if (id < 0 || id >= MAX_RT_TEST_MUTEXES || td->mutexes[id] != 4) - return ret; - -- td->event = atomic_add_return(1, &rttest_event); -+ td->event = atomic_add_return_unchecked(1, &rttest_event); - rt_mutex_unlock(&mutexes[id]); -- td->event = atomic_add_return(1, &rttest_event); -+ td->event = atomic_add_return_unchecked(1, &rttest_event); - td->mutexes[id] = 0; - return 0; - -@@ -164,7 +164,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex) - break; - - td->mutexes[dat] = 2; -- td->event = atomic_add_return(1, &rttest_event); -+ td->event = atomic_add_return_unchecked(1, &rttest_event); - break; - - default: -@@ -184,7 +184,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex) - return; - - td->mutexes[dat] = 3; -- td->event = atomic_add_return(1, &rttest_event); -+ td->event = atomic_add_return_unchecked(1, &rttest_event); - break; - - case RTTEST_LOCKNOWAIT: -@@ -196,7 +196,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex) - return; - - td->mutexes[dat] = 1; -- td->event = atomic_add_return(1, &rttest_event); -+ td->event = atomic_add_return_unchecked(1, &rttest_event); - return; - - default: -diff --git a/kernel/sched/auto_group.c b/kernel/sched/auto_group.c -index 0984a21..939f183 100644 ---- a/kernel/sched/auto_group.c -+++ b/kernel/sched/auto_group.c -@@ -11,7 +11,7 @@ - - unsigned int __read_mostly sysctl_sched_autogroup_enabled = 1; - static struct autogroup autogroup_default; --static atomic_t autogroup_seq_nr; -+static atomic_unchecked_t autogroup_seq_nr; - - void __init autogroup_init(struct task_struct *init_task) - { -@@ -78,7 +78,7 @@ static inline struct autogroup *autogroup_create(void) - - kref_init(&ag->kref); - init_rwsem(&ag->lock); -- ag->id = atomic_inc_return(&autogroup_seq_nr); -+ ag->id = atomic_inc_return_unchecked(&autogroup_seq_nr); - ag->tg = tg; - #ifdef CONFIG_RT_GROUP_SCHED - /* -diff --git a/kernel/sched/core.c b/kernel/sched/core.c -index 2000e06..79cf3d8 100644 ---- a/kernel/sched/core.c -+++ b/kernel/sched/core.c -@@ -3907,6 +3907,8 @@ int can_nice(const struct task_struct *p, const int nice) - /* convert nice value [19,-20] to rlimit style value [1,40] */ - int nice_rlim = 20 - nice; - -+ gr_learn_resource(p, RLIMIT_NICE, nice_rlim, 1); -+ - return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) || - capable(CAP_SYS_NICE)); - } -@@ -3940,7 +3942,8 @@ SYSCALL_DEFINE1(nice, int, increment) - if (nice > 19) - nice = 19; - -- if (increment < 0 && !can_nice(current, nice)) -+ if (increment < 0 && (!can_nice(current, nice) || -+ gr_handle_chroot_nice())) - return -EPERM; - - retval = security_task_setnice(current, nice); -@@ -4097,6 +4100,7 @@ recheck: - unsigned long rlim_rtprio = - task_rlimit(p, RLIMIT_RTPRIO); - -+ gr_learn_resource(p, RLIMIT_RTPRIO, param->sched_priority, 1); - /* can't set/change the rt policy */ - if (policy != p->policy && !rlim_rtprio) - return -EPERM; -diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c -index e955364..eacd2a4 100644 ---- a/kernel/sched/fair.c -+++ b/kernel/sched/fair.c -@@ -5107,7 +5107,7 @@ static void nohz_idle_balance(int this_cpu, enum cpu_idle_type idle) { } - * run_rebalance_domains is triggered when needed from the scheduler tick. - * Also triggered for nohz idle balancing (with nohz_balancing_kick set). - */ --static void run_rebalance_domains(struct softirq_action *h) -+static void run_rebalance_domains(void) - { - int this_cpu = smp_processor_id(); - struct rq *this_rq = cpu_rq(this_cpu); -diff --git a/kernel/signal.c b/kernel/signal.c -index 17afcaf..4500b05 100644 ---- a/kernel/signal.c -+++ b/kernel/signal.c -@@ -47,12 +47,12 @@ static struct kmem_cache *sigqueue_cachep; - - int print_fatal_signals __read_mostly; - --static void __user *sig_handler(struct task_struct *t, int sig) -+static __sighandler_t sig_handler(struct task_struct *t, int sig) - { - return t->sighand->action[sig - 1].sa.sa_handler; - } - --static int sig_handler_ignored(void __user *handler, int sig) -+static int sig_handler_ignored(__sighandler_t handler, int sig) - { - /* Is it explicitly or implicitly ignored? */ - return handler == SIG_IGN || -@@ -61,7 +61,7 @@ static int sig_handler_ignored(void __user *handler, int sig) - - static int sig_task_ignored(struct task_struct *t, int sig, bool force) - { -- void __user *handler; -+ __sighandler_t handler; - - handler = sig_handler(t, sig); - -@@ -365,6 +365,9 @@ __sigqueue_alloc(int sig, struct task_struct *t, gfp_t flags, int override_rlimi - atomic_inc(&user->sigpending); - rcu_read_unlock(); - -+ if (!override_rlimit) -+ gr_learn_resource(t, RLIMIT_SIGPENDING, atomic_read(&user->sigpending), 1); -+ - if (override_rlimit || - atomic_read(&user->sigpending) <= - task_rlimit(t, RLIMIT_SIGPENDING)) { -@@ -489,7 +492,7 @@ flush_signal_handlers(struct task_struct *t, int force_default) - - int unhandled_signal(struct task_struct *tsk, int sig) - { -- void __user *handler = tsk->sighand->action[sig-1].sa.sa_handler; -+ __sighandler_t handler = tsk->sighand->action[sig-1].sa.sa_handler; - if (is_global_init(tsk)) - return 1; - if (handler != SIG_IGN && handler != SIG_DFL) -@@ -816,6 +819,13 @@ static int check_kill_permission(int sig, struct siginfo *info, - } - } - -+ /* allow glibc communication via tgkill to other threads in our -+ thread group */ -+ if ((info == SEND_SIG_NOINFO || info->si_code != SI_TKILL || -+ sig != (SIGRTMIN+1) || task_tgid_vnr(t) != info->si_pid) -+ && gr_handle_signal(t, sig)) -+ return -EPERM; -+ - return security_task_kill(t, info, sig, 0); - } - -@@ -1204,7 +1214,7 @@ __group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p) - return send_signal(sig, info, p, 1); - } - --static int -+int - specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t) - { - return send_signal(sig, info, t, 0); -@@ -1241,6 +1251,7 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t) - unsigned long int flags; - int ret, blocked, ignored; - struct k_sigaction *action; -+ int is_unhandled = 0; - - spin_lock_irqsave(&t->sighand->siglock, flags); - action = &t->sighand->action[sig-1]; -@@ -1255,9 +1266,18 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t) - } - if (action->sa.sa_handler == SIG_DFL) - t->signal->flags &= ~SIGNAL_UNKILLABLE; -+ if (action->sa.sa_handler == SIG_IGN || action->sa.sa_handler == SIG_DFL) -+ is_unhandled = 1; - ret = specific_send_sig_info(sig, info, t); - spin_unlock_irqrestore(&t->sighand->siglock, flags); - -+ /* only deal with unhandled signals, java etc trigger SIGSEGV during -+ normal operation */ -+ if (is_unhandled) { -+ gr_log_signal(sig, !is_si_special(info) ? info->si_addr : NULL, t); -+ gr_handle_crash(t, sig); -+ } -+ - return ret; - } - -@@ -1324,8 +1344,11 @@ int group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p) - ret = check_kill_permission(sig, info, p); - rcu_read_unlock(); - -- if (!ret && sig) -+ if (!ret && sig) { - ret = do_send_sig_info(sig, info, p, true); -+ if (!ret) -+ gr_log_signal(sig, !is_si_special(info) ? info->si_addr : NULL, p); -+ } - - return ret; - } -@@ -2840,7 +2863,15 @@ do_send_specific(pid_t tgid, pid_t pid, int sig, struct siginfo *info) - int error = -ESRCH; - - rcu_read_lock(); -- p = find_task_by_vpid(pid); -+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK -+ /* allow glibc communication via tgkill to other threads in our -+ thread group */ -+ if (grsec_enable_chroot_findtask && info->si_code == SI_TKILL && -+ sig == (SIGRTMIN+1) && tgid == info->si_pid) -+ p = find_task_by_vpid_unrestricted(pid); -+ else -+#endif -+ p = find_task_by_vpid(pid); - if (p && (tgid <= 0 || task_tgid_vnr(p) == tgid)) { - error = check_kill_permission(sig, info, p); - /* -diff --git a/kernel/smp.c b/kernel/smp.c -index 2f8b10e..a41bc14 100644 ---- a/kernel/smp.c -+++ b/kernel/smp.c -@@ -580,22 +580,22 @@ int smp_call_function(smp_call_func_t func, void *info, int wait) - } - EXPORT_SYMBOL(smp_call_function); - --void ipi_call_lock(void) -+void ipi_call_lock(void) __acquires(call_function.lock) - { - raw_spin_lock(&call_function.lock); - } - --void ipi_call_unlock(void) -+void ipi_call_unlock(void) __releases(call_function.lock) - { - raw_spin_unlock(&call_function.lock); - } - --void ipi_call_lock_irq(void) -+void ipi_call_lock_irq(void) __acquires(call_function.lock) - { - raw_spin_lock_irq(&call_function.lock); - } - --void ipi_call_unlock_irq(void) -+void ipi_call_unlock_irq(void) __releases(call_function.lock) - { - raw_spin_unlock_irq(&call_function.lock); - } -diff --git a/kernel/softirq.c b/kernel/softirq.c -index 671f959..91c51cb 100644 ---- a/kernel/softirq.c -+++ b/kernel/softirq.c -@@ -56,7 +56,7 @@ static struct softirq_action softirq_vec[NR_SOFTIRQS] __cacheline_aligned_in_smp - - DEFINE_PER_CPU(struct task_struct *, ksoftirqd); - --char *softirq_to_name[NR_SOFTIRQS] = { -+const char * const softirq_to_name[NR_SOFTIRQS] = { - "HI", "TIMER", "NET_TX", "NET_RX", "BLOCK", "BLOCK_IOPOLL", - "TASKLET", "SCHED", "HRTIMER", "RCU" - }; -@@ -235,7 +235,7 @@ restart: - kstat_incr_softirqs_this_cpu(vec_nr); - - trace_softirq_entry(vec_nr); -- h->action(h); -+ h->action(); - trace_softirq_exit(vec_nr); - if (unlikely(prev_count != preempt_count())) { - printk(KERN_ERR "huh, entered softirq %u %s %p" -@@ -381,9 +381,11 @@ void __raise_softirq_irqoff(unsigned int nr) - or_softirq_pending(1UL << nr); - } - --void open_softirq(int nr, void (*action)(struct softirq_action *)) -+void open_softirq(int nr, void (*action)(void)) - { -- softirq_vec[nr].action = action; -+ pax_open_kernel(); -+ *(void **)&softirq_vec[nr].action = action; -+ pax_close_kernel(); - } - - /* -@@ -437,7 +439,7 @@ void __tasklet_hi_schedule_first(struct tasklet_struct *t) - - EXPORT_SYMBOL(__tasklet_hi_schedule_first); - --static void tasklet_action(struct softirq_action *a) -+static void tasklet_action(void) - { - struct tasklet_struct *list; - -@@ -472,7 +474,7 @@ static void tasklet_action(struct softirq_action *a) - } - } - --static void tasklet_hi_action(struct softirq_action *a) -+static void tasklet_hi_action(void) - { - struct tasklet_struct *list; - -diff --git a/kernel/sys.c b/kernel/sys.c -index e7006eb..8fb7c51 100644 ---- a/kernel/sys.c -+++ b/kernel/sys.c -@@ -158,6 +158,12 @@ static int set_one_prio(struct task_struct *p, int niceval, int error) - error = -EACCES; - goto out; - } -+ -+ if (gr_handle_chroot_setpriority(p, niceval)) { -+ error = -EACCES; -+ goto out; -+ } -+ - no_nice = security_task_setnice(p, niceval); - if (no_nice) { - error = no_nice; -@@ -581,6 +587,9 @@ SYSCALL_DEFINE2(setregid, gid_t, rgid, gid_t, egid) - goto error; - } - -+ if (gr_check_group_change(new->gid, new->egid, -1)) -+ goto error; -+ - if (rgid != (gid_t) -1 || - (egid != (gid_t) -1 && egid != old->gid)) - new->sgid = new->egid; -@@ -610,6 +619,10 @@ SYSCALL_DEFINE1(setgid, gid_t, gid) - old = current_cred(); - - retval = -EPERM; -+ -+ if (gr_check_group_change(gid, gid, gid)) -+ goto error; -+ - if (nsown_capable(CAP_SETGID)) - new->gid = new->egid = new->sgid = new->fsgid = gid; - else if (gid == old->gid || gid == old->sgid) -@@ -627,7 +640,7 @@ error: - /* - * change the user struct in a credentials set to match the new UID - */ --static int set_user(struct cred *new) -+int set_user(struct cred *new) - { - struct user_struct *new_user; - -@@ -697,6 +710,9 @@ SYSCALL_DEFINE2(setreuid, uid_t, ruid, uid_t, euid) - goto error; - } - -+ if (gr_check_user_change(new->uid, new->euid, -1)) -+ goto error; -+ - if (new->uid != old->uid) { - retval = set_user(new); - if (retval < 0) -@@ -741,6 +757,12 @@ SYSCALL_DEFINE1(setuid, uid_t, uid) - old = current_cred(); - - retval = -EPERM; -+ -+ if (gr_check_crash_uid(uid)) -+ goto error; -+ if (gr_check_user_change(uid, uid, uid)) -+ goto error; -+ - if (nsown_capable(CAP_SETUID)) { - new->suid = new->uid = uid; - if (uid != old->uid) { -@@ -795,6 +817,9 @@ SYSCALL_DEFINE3(setresuid, uid_t, ruid, uid_t, euid, uid_t, suid) - goto error; - } - -+ if (gr_check_user_change(ruid, euid, -1)) -+ goto error; -+ - if (ruid != (uid_t) -1) { - new->uid = ruid; - if (ruid != old->uid) { -@@ -859,6 +884,9 @@ SYSCALL_DEFINE3(setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid) - goto error; - } - -+ if (gr_check_group_change(rgid, egid, -1)) -+ goto error; -+ - if (rgid != (gid_t) -1) - new->gid = rgid; - if (egid != (gid_t) -1) -@@ -905,6 +933,9 @@ SYSCALL_DEFINE1(setfsuid, uid_t, uid) - old = current_cred(); - old_fsuid = old->fsuid; - -+ if (gr_check_user_change(-1, -1, uid)) -+ goto error; -+ - if (uid == old->uid || uid == old->euid || - uid == old->suid || uid == old->fsuid || - nsown_capable(CAP_SETUID)) { -@@ -915,6 +946,7 @@ SYSCALL_DEFINE1(setfsuid, uid_t, uid) - } - } - -+error: - abort_creds(new); - return old_fsuid; - -@@ -941,12 +973,16 @@ SYSCALL_DEFINE1(setfsgid, gid_t, gid) - if (gid == old->gid || gid == old->egid || - gid == old->sgid || gid == old->fsgid || - nsown_capable(CAP_SETGID)) { -+ if (gr_check_group_change(-1, -1, gid)) -+ goto error; -+ - if (gid != old_fsgid) { - new->fsgid = gid; - goto change_okay; - } - } - -+error: - abort_creds(new); - return old_fsgid; - -@@ -1198,7 +1234,10 @@ static int override_release(char __user *release, int len) - } - v = ((LINUX_VERSION_CODE >> 8) & 0xff) + 40; - snprintf(buf, len, "2.6.%u%s", v, rest); -- ret = copy_to_user(release, buf, len); -+ if (len > sizeof(buf)) -+ ret = -EFAULT; -+ else -+ ret = copy_to_user(release, buf, len); - } - return ret; - } -@@ -1252,19 +1291,19 @@ SYSCALL_DEFINE1(olduname, struct oldold_utsname __user *, name) - return -EFAULT; - - down_read(&uts_sem); -- error = __copy_to_user(&name->sysname, &utsname()->sysname, -+ error = __copy_to_user(name->sysname, &utsname()->sysname, - __OLD_UTS_LEN); - error |= __put_user(0, name->sysname + __OLD_UTS_LEN); -- error |= __copy_to_user(&name->nodename, &utsname()->nodename, -+ error |= __copy_to_user(name->nodename, &utsname()->nodename, - __OLD_UTS_LEN); - error |= __put_user(0, name->nodename + __OLD_UTS_LEN); -- error |= __copy_to_user(&name->release, &utsname()->release, -+ error |= __copy_to_user(name->release, &utsname()->release, - __OLD_UTS_LEN); - error |= __put_user(0, name->release + __OLD_UTS_LEN); -- error |= __copy_to_user(&name->version, &utsname()->version, -+ error |= __copy_to_user(name->version, &utsname()->version, - __OLD_UTS_LEN); - error |= __put_user(0, name->version + __OLD_UTS_LEN); -- error |= __copy_to_user(&name->machine, &utsname()->machine, -+ error |= __copy_to_user(name->machine, &utsname()->machine, - __OLD_UTS_LEN); - error |= __put_user(0, name->machine + __OLD_UTS_LEN); - up_read(&uts_sem); -@@ -1847,7 +1886,7 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3, - error = get_dumpable(me->mm); - break; - case PR_SET_DUMPABLE: -- if (arg2 < 0 || arg2 > 1) { -+ if (arg2 > 1) { - error = -EINVAL; - break; - } -diff --git a/kernel/sysctl.c b/kernel/sysctl.c -index 4ab1187..0b75ced 100644 ---- a/kernel/sysctl.c -+++ b/kernel/sysctl.c -@@ -91,7 +91,6 @@ - - - #if defined(CONFIG_SYSCTL) -- - /* External variables not in a header file. */ - extern int sysctl_overcommit_memory; - extern int sysctl_overcommit_ratio; -@@ -169,10 +168,8 @@ static int proc_taint(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos); - #endif - --#ifdef CONFIG_PRINTK - static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos); --#endif - - #ifdef CONFIG_MAGIC_SYSRQ - /* Note: sysrq code uses it's own private copy */ -@@ -196,6 +193,8 @@ static int sysrq_sysctl_handler(ctl_table *table, int write, - - #endif - -+extern struct ctl_table grsecurity_table[]; -+ - static struct ctl_table kern_table[]; - static struct ctl_table vm_table[]; - static struct ctl_table fs_table[]; -@@ -210,6 +209,20 @@ extern struct ctl_table epoll_table[]; - int sysctl_legacy_va_layout; - #endif - -+#ifdef CONFIG_PAX_SOFTMODE -+static ctl_table pax_table[] = { -+ { -+ .procname = "softmode", -+ .data = &pax_softmode, -+ .maxlen = sizeof(unsigned int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+ -+ { } -+}; -+#endif -+ - /* The default sysctl tables: */ - - static struct ctl_table sysctl_base_table[] = { -@@ -256,6 +269,22 @@ static int max_extfrag_threshold = 1000; - #endif - - static struct ctl_table kern_table[] = { -+#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_ROFS) -+ { -+ .procname = "grsecurity", -+ .mode = 0500, -+ .child = grsecurity_table, -+ }, -+#endif -+ -+#ifdef CONFIG_PAX_SOFTMODE -+ { -+ .procname = "pax", -+ .mode = 0500, -+ .child = pax_table, -+ }, -+#endif -+ - { - .procname = "sched_child_runs_first", - .data = &sysctl_sched_child_runs_first, -@@ -540,7 +569,7 @@ static struct ctl_table kern_table[] = { - .data = &modprobe_path, - .maxlen = KMOD_PATH_LEN, - .mode = 0644, -- .proc_handler = proc_dostring, -+ .proc_handler = proc_dostring_modpriv, - }, - { - .procname = "modules_disabled", -@@ -707,16 +736,20 @@ static struct ctl_table kern_table[] = { - .extra1 = &zero, - .extra2 = &one, - }, -+#endif - { - .procname = "kptr_restrict", - .data = &kptr_restrict, - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec_minmax_sysadmin, -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ .extra1 = &two, -+#else - .extra1 = &zero, -+#endif - .extra2 = &two, - }, --#endif - { - .procname = "ngroups_max", - .data = &ngroups_max, -@@ -1215,6 +1248,13 @@ static struct ctl_table vm_table[] = { - .proc_handler = proc_dointvec_minmax, - .extra1 = &zero, - }, -+ { -+ .procname = "heap_stack_gap", -+ .data = &sysctl_heap_stack_gap, -+ .maxlen = sizeof(sysctl_heap_stack_gap), -+ .mode = 0644, -+ .proc_handler = proc_doulongvec_minmax, -+ }, - #else - { - .procname = "nr_trim_pages", -@@ -1645,6 +1685,16 @@ int proc_dostring(struct ctl_table *table, int write, - buffer, lenp, ppos); - } - -+int proc_dostring_modpriv(struct ctl_table *table, int write, -+ void __user *buffer, size_t *lenp, loff_t *ppos) -+{ -+ if (write && !capable(CAP_SYS_MODULE)) -+ return -EPERM; -+ -+ return _proc_do_string(table->data, table->maxlen, write, -+ buffer, lenp, ppos); -+} -+ - static size_t proc_skip_spaces(char **buf) - { - size_t ret; -@@ -1750,6 +1800,8 @@ static int proc_put_long(void __user **buf, size_t *size, unsigned long val, - len = strlen(tmp); - if (len > *size) - len = *size; -+ if (len > sizeof(tmp)) -+ len = sizeof(tmp); - if (copy_to_user(*buf, tmp, len)) - return -EFAULT; - *size -= len; -@@ -1942,7 +1994,6 @@ static int proc_taint(struct ctl_table *table, int write, - return err; - } - --#ifdef CONFIG_PRINTK - static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) - { -@@ -1951,7 +2002,6 @@ static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write, - - return proc_dointvec_minmax(table, write, buffer, lenp, ppos); - } --#endif - - struct do_proc_dointvec_minmax_conv_param { - int *min; -@@ -2066,8 +2116,11 @@ static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table, int - *i = val; - } else { - val = convdiv * (*i) / convmul; -- if (!first) -+ if (!first) { - err = proc_put_char(&buffer, &left, '\t'); -+ if (err) -+ break; -+ } - err = proc_put_long(&buffer, &left, val, false); - if (err) - break; -@@ -2459,6 +2512,12 @@ int proc_dostring(struct ctl_table *table, int write, - return -ENOSYS; - } - -+int proc_dostring_modpriv(struct ctl_table *table, int write, -+ void __user *buffer, size_t *lenp, loff_t *ppos) -+{ -+ return -ENOSYS; -+} -+ - int proc_dointvec(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) - { -@@ -2515,5 +2574,6 @@ EXPORT_SYMBOL(proc_dointvec_minmax); - EXPORT_SYMBOL(proc_dointvec_userhz_jiffies); - EXPORT_SYMBOL(proc_dointvec_ms_jiffies); - EXPORT_SYMBOL(proc_dostring); -+EXPORT_SYMBOL(proc_dostring_modpriv); - EXPORT_SYMBOL(proc_doulongvec_minmax); - EXPORT_SYMBOL(proc_doulongvec_ms_jiffies_minmax); -diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c -index a650694..aaeeb20 100644 ---- a/kernel/sysctl_binary.c -+++ b/kernel/sysctl_binary.c -@@ -989,7 +989,7 @@ static ssize_t bin_intvec(struct file *file, - int i; - - set_fs(KERNEL_DS); -- result = vfs_read(file, buffer, BUFSZ - 1, &pos); -+ result = vfs_read(file, (char __force_user *)buffer, BUFSZ - 1, &pos); - set_fs(old_fs); - if (result < 0) - goto out_kfree; -@@ -1034,7 +1034,7 @@ static ssize_t bin_intvec(struct file *file, - } - - set_fs(KERNEL_DS); -- result = vfs_write(file, buffer, str - buffer, &pos); -+ result = vfs_write(file, (const char __force_user *)buffer, str - buffer, &pos); - set_fs(old_fs); - if (result < 0) - goto out_kfree; -@@ -1067,7 +1067,7 @@ static ssize_t bin_ulongvec(struct file *file, - int i; - - set_fs(KERNEL_DS); -- result = vfs_read(file, buffer, BUFSZ - 1, &pos); -+ result = vfs_read(file, (char __force_user *)buffer, BUFSZ - 1, &pos); - set_fs(old_fs); - if (result < 0) - goto out_kfree; -@@ -1112,7 +1112,7 @@ static ssize_t bin_ulongvec(struct file *file, - } - - set_fs(KERNEL_DS); -- result = vfs_write(file, buffer, str - buffer, &pos); -+ result = vfs_write(file, (const char __force_user *)buffer, str - buffer, &pos); - set_fs(old_fs); - if (result < 0) - goto out_kfree; -@@ -1138,7 +1138,7 @@ static ssize_t bin_uuid(struct file *file, - int i; - - set_fs(KERNEL_DS); -- result = vfs_read(file, buf, sizeof(buf) - 1, &pos); -+ result = vfs_read(file, (char __force_user *)buf, sizeof(buf) - 1, &pos); - set_fs(old_fs); - if (result < 0) - goto out; -@@ -1185,7 +1185,7 @@ static ssize_t bin_dn_node_address(struct file *file, - __le16 dnaddr; - - set_fs(KERNEL_DS); -- result = vfs_read(file, buf, sizeof(buf) - 1, &pos); -+ result = vfs_read(file, (char __force_user *)buf, sizeof(buf) - 1, &pos); - set_fs(old_fs); - if (result < 0) - goto out; -@@ -1233,7 +1233,7 @@ static ssize_t bin_dn_node_address(struct file *file, - le16_to_cpu(dnaddr) & 0x3ff); - - set_fs(KERNEL_DS); -- result = vfs_write(file, buf, len, &pos); -+ result = vfs_write(file, (const char __force_user *)buf, len, &pos); - set_fs(old_fs); - if (result < 0) - goto out; -diff --git a/kernel/taskstats.c b/kernel/taskstats.c -index e660464..c8b9e67 100644 ---- a/kernel/taskstats.c -+++ b/kernel/taskstats.c -@@ -27,9 +27,12 @@ - #include <linux/cgroup.h> - #include <linux/fs.h> - #include <linux/file.h> -+#include <linux/grsecurity.h> - #include <net/genetlink.h> - #include <linux/atomic.h> - -+extern int gr_is_taskstats_denied(int pid); -+ - /* - * Maximum length of a cpumask that can be specified in - * the TASKSTATS_CMD_ATTR_REGISTER/DEREGISTER_CPUMASK attribute -@@ -556,6 +559,9 @@ err: - - static int taskstats_user_cmd(struct sk_buff *skb, struct genl_info *info) - { -+ if (gr_is_taskstats_denied(current->pid)) -+ return -EACCES; -+ - if (info->attrs[TASKSTATS_CMD_ATTR_REGISTER_CPUMASK]) - return cmd_attr_register_cpumask(info); - else if (info->attrs[TASKSTATS_CMD_ATTR_DEREGISTER_CPUMASK]) -diff --git a/kernel/time.c b/kernel/time.c -index ba744cf..267b7c5 100644 ---- a/kernel/time.c -+++ b/kernel/time.c -@@ -163,6 +163,11 @@ int do_sys_settimeofday(const struct timespec *tv, const struct timezone *tz) - return error; - - if (tz) { -+ /* we log in do_settimeofday called below, so don't log twice -+ */ -+ if (!tv) -+ gr_log_timechange(); -+ - sys_tz = *tz; - update_vsyscall_tz(); - if (firsttime) { -diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c -index 8a538c5..def79d4 100644 ---- a/kernel/time/alarmtimer.c -+++ b/kernel/time/alarmtimer.c -@@ -779,7 +779,7 @@ static int __init alarmtimer_init(void) - struct platform_device *pdev; - int error = 0; - int i; -- struct k_clock alarm_clock = { -+ static struct k_clock alarm_clock = { - .clock_getres = alarm_clock_getres, - .clock_get = alarm_clock_get, - .timer_create = alarm_timer_create, -diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c -index f113755..ec24223 100644 ---- a/kernel/time/tick-broadcast.c -+++ b/kernel/time/tick-broadcast.c -@@ -115,7 +115,7 @@ int tick_device_uses_broadcast(struct clock_event_device *dev, int cpu) - * then clear the broadcast bit. - */ - if (!(dev->features & CLOCK_EVT_FEAT_C3STOP)) { -- int cpu = smp_processor_id(); -+ cpu = smp_processor_id(); - - cpumask_clear_cpu(cpu, tick_get_broadcast_mask()); - tick_broadcast_clear_oneshot(cpu); -diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c -index d42574df..247414c 100644 ---- a/kernel/time/timekeeping.c -+++ b/kernel/time/timekeeping.c -@@ -14,6 +14,7 @@ - #include <linux/init.h> - #include <linux/mm.h> - #include <linux/sched.h> -+#include <linux/grsecurity.h> - #include <linux/syscore_ops.h> - #include <linux/clocksource.h> - #include <linux/jiffies.h> -@@ -373,6 +374,8 @@ int do_settimeofday(const struct timespec *tv) - if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) - return -EINVAL; - -+ gr_log_timechange(); -+ - write_seqlock_irqsave(&timekeeper.lock, flags); - - timekeeping_forward_now(); -diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c -index 3258455..f35227d 100644 ---- a/kernel/time/timer_list.c -+++ b/kernel/time/timer_list.c -@@ -38,12 +38,16 @@ DECLARE_PER_CPU(struct hrtimer_cpu_base, hrtimer_bases); - - static void print_name_offset(struct seq_file *m, void *sym) - { -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ SEQ_printf(m, "<%p>", NULL); -+#else - char symname[KSYM_NAME_LEN]; - - if (lookup_symbol_name((unsigned long)sym, symname) < 0) - SEQ_printf(m, "<%pK>", sym); - else - SEQ_printf(m, "%s", symname); -+#endif - } - - static void -@@ -112,7 +116,11 @@ next_one: - static void - print_base(struct seq_file *m, struct hrtimer_clock_base *base, u64 now) - { -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ SEQ_printf(m, " .base: %p\n", NULL); -+#else - SEQ_printf(m, " .base: %pK\n", base); -+#endif - SEQ_printf(m, " .index: %d\n", - base->index); - SEQ_printf(m, " .resolution: %Lu nsecs\n", -@@ -293,7 +301,11 @@ static int __init init_timer_list_procfs(void) - { - struct proc_dir_entry *pe; - -+#ifdef CONFIG_GRKERNSEC_PROC_ADD -+ pe = proc_create("timer_list", 0400, NULL, &timer_list_fops); -+#else - pe = proc_create("timer_list", 0444, NULL, &timer_list_fops); -+#endif - if (!pe) - return -ENOMEM; - return 0; -diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c -index 0b537f2..9e71eca 100644 ---- a/kernel/time/timer_stats.c -+++ b/kernel/time/timer_stats.c -@@ -116,7 +116,7 @@ static ktime_t time_start, time_stop; - static unsigned long nr_entries; - static struct entry entries[MAX_ENTRIES]; - --static atomic_t overflow_count; -+static atomic_unchecked_t overflow_count; - - /* - * The entries are in a hash-table, for fast lookup: -@@ -140,7 +140,7 @@ static void reset_entries(void) - nr_entries = 0; - memset(entries, 0, sizeof(entries)); - memset(tstat_hash_table, 0, sizeof(tstat_hash_table)); -- atomic_set(&overflow_count, 0); -+ atomic_set_unchecked(&overflow_count, 0); - } - - static struct entry *alloc_entry(void) -@@ -261,7 +261,7 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf, - if (likely(entry)) - entry->count++; - else -- atomic_inc(&overflow_count); -+ atomic_inc_unchecked(&overflow_count); - - out_unlock: - raw_spin_unlock_irqrestore(lock, flags); -@@ -269,12 +269,16 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf, - - static void print_name_offset(struct seq_file *m, unsigned long addr) - { -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ seq_printf(m, "<%p>", NULL); -+#else - char symname[KSYM_NAME_LEN]; - - if (lookup_symbol_name(addr, symname) < 0) - seq_printf(m, "<%p>", (void *)addr); - else - seq_printf(m, "%s", symname); -+#endif - } - - static int tstats_show(struct seq_file *m, void *v) -@@ -300,9 +304,9 @@ static int tstats_show(struct seq_file *m, void *v) - - seq_puts(m, "Timer Stats Version: v0.2\n"); - seq_printf(m, "Sample period: %ld.%03ld s\n", period.tv_sec, ms); -- if (atomic_read(&overflow_count)) -+ if (atomic_read_unchecked(&overflow_count)) - seq_printf(m, "Overflow: %d entries\n", -- atomic_read(&overflow_count)); -+ atomic_read_unchecked(&overflow_count)); - - for (i = 0; i < nr_entries; i++) { - entry = entries + i; -@@ -417,7 +421,11 @@ static int __init init_tstats_procfs(void) - { - struct proc_dir_entry *pe; - -+#ifdef CONFIG_GRKERNSEC_PROC_ADD -+ pe = proc_create("timer_stats", 0600, NULL, &tstats_fops); -+#else - pe = proc_create("timer_stats", 0644, NULL, &tstats_fops); -+#endif - if (!pe) - return -ENOMEM; - return 0; -diff --git a/kernel/timer.c b/kernel/timer.c -index a297ffc..5e16b0b 100644 ---- a/kernel/timer.c -+++ b/kernel/timer.c -@@ -1354,7 +1354,7 @@ void update_process_times(int user_tick) - /* - * This function runs timers and the timer-tq in bottom half context. - */ --static void run_timer_softirq(struct softirq_action *h) -+static void run_timer_softirq(void) - { - struct tvec_base *base = __this_cpu_read(tvec_bases); - -diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c -index c0bd030..62a1927 100644 ---- a/kernel/trace/blktrace.c -+++ b/kernel/trace/blktrace.c -@@ -317,7 +317,7 @@ static ssize_t blk_dropped_read(struct file *filp, char __user *buffer, - struct blk_trace *bt = filp->private_data; - char buf[16]; - -- snprintf(buf, sizeof(buf), "%u\n", atomic_read(&bt->dropped)); -+ snprintf(buf, sizeof(buf), "%u\n", atomic_read_unchecked(&bt->dropped)); - - return simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf)); - } -@@ -375,7 +375,7 @@ static int blk_subbuf_start_callback(struct rchan_buf *buf, void *subbuf, - return 1; - - bt = buf->chan->private_data; -- atomic_inc(&bt->dropped); -+ atomic_inc_unchecked(&bt->dropped); - return 0; - } - -@@ -476,7 +476,7 @@ int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev, - - bt->dir = dir; - bt->dev = dev; -- atomic_set(&bt->dropped, 0); -+ atomic_set_unchecked(&bt->dropped, 0); - - ret = -EIO; - bt->dropped_file = debugfs_create_file("dropped", 0444, dir, bt, -diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c -index 0fa92f6..89950b2 100644 ---- a/kernel/trace/ftrace.c -+++ b/kernel/trace/ftrace.c -@@ -1800,12 +1800,17 @@ ftrace_code_disable(struct module *mod, struct dyn_ftrace *rec) - if (unlikely(ftrace_disabled)) - return 0; - -+ ret = ftrace_arch_code_modify_prepare(); -+ FTRACE_WARN_ON(ret); -+ if (ret) -+ return 0; -+ - ret = ftrace_make_nop(mod, rec, MCOUNT_ADDR); -+ FTRACE_WARN_ON(ftrace_arch_code_modify_post_process()); - if (ret) { - ftrace_bug(ret, ip); -- return 0; - } -- return 1; -+ return ret ? 0 : 1; - } - - /* -@@ -2917,7 +2922,7 @@ static void ftrace_free_entry_rcu(struct rcu_head *rhp) - - int - register_ftrace_function_probe(char *glob, struct ftrace_probe_ops *ops, -- void *data) -+ void *data) - { - struct ftrace_func_probe *entry; - struct ftrace_page *pg; -diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c -index 464a96f..bc0bd88 100644 ---- a/kernel/trace/trace.c -+++ b/kernel/trace/trace.c -@@ -4312,10 +4312,9 @@ static const struct file_operations tracing_dyn_info_fops = { - }; - #endif - --static struct dentry *d_tracer; -- - struct dentry *tracing_init_dentry(void) - { -+ static struct dentry *d_tracer; - static int once; - - if (d_tracer) -@@ -4335,10 +4334,9 @@ struct dentry *tracing_init_dentry(void) - return d_tracer; - } - --static struct dentry *d_percpu; -- - struct dentry *tracing_dentry_percpu(void) - { -+ static struct dentry *d_percpu; - static int once; - struct dentry *d_tracer; - -diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c -index 29111da..d190fe2 100644 ---- a/kernel/trace/trace_events.c -+++ b/kernel/trace/trace_events.c -@@ -1308,10 +1308,6 @@ static LIST_HEAD(ftrace_module_file_list); - struct ftrace_module_file_ops { - struct list_head list; - struct module *mod; -- struct file_operations id; -- struct file_operations enable; -- struct file_operations format; -- struct file_operations filter; - }; - - static struct ftrace_module_file_ops * -@@ -1332,17 +1328,12 @@ trace_create_file_ops(struct module *mod) - - file_ops->mod = mod; - -- file_ops->id = ftrace_event_id_fops; -- file_ops->id.owner = mod; -- -- file_ops->enable = ftrace_enable_fops; -- file_ops->enable.owner = mod; -- -- file_ops->filter = ftrace_event_filter_fops; -- file_ops->filter.owner = mod; -- -- file_ops->format = ftrace_event_format_fops; -- file_ops->format.owner = mod; -+ pax_open_kernel(); -+ *(void **)&mod->trace_id.owner = mod; -+ *(void **)&mod->trace_enable.owner = mod; -+ *(void **)&mod->trace_filter.owner = mod; -+ *(void **)&mod->trace_format.owner = mod; -+ pax_close_kernel(); - - list_add(&file_ops->list, &ftrace_module_file_list); - -@@ -1366,8 +1357,8 @@ static void trace_module_add_events(struct module *mod) - - for_each_event(call, start, end) { - __trace_add_event_call(*call, mod, -- &file_ops->id, &file_ops->enable, -- &file_ops->filter, &file_ops->format); -+ &mod->trace_id, &mod->trace_enable, -+ &mod->trace_filter, &mod->trace_format); - } - } - -diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c -index 580a05e..9b31acb 100644 ---- a/kernel/trace/trace_kprobe.c -+++ b/kernel/trace/trace_kprobe.c -@@ -217,7 +217,7 @@ static __kprobes void FETCH_FUNC_NAME(memory, string)(struct pt_regs *regs, - long ret; - int maxlen = get_rloc_len(*(u32 *)dest); - u8 *dst = get_rloc_data(dest); -- u8 *src = addr; -+ const u8 __user *src = (const u8 __force_user *)addr; - mm_segment_t old_fs = get_fs(); - if (!maxlen) - return; -@@ -229,7 +229,7 @@ static __kprobes void FETCH_FUNC_NAME(memory, string)(struct pt_regs *regs, - pagefault_disable(); - do - ret = __copy_from_user_inatomic(dst++, src++, 1); -- while (dst[-1] && ret == 0 && src - (u8 *)addr < maxlen); -+ while (dst[-1] && ret == 0 && src - (const u8 __force_user *)addr < maxlen); - dst[-1] = '\0'; - pagefault_enable(); - set_fs(old_fs); -@@ -238,7 +238,7 @@ static __kprobes void FETCH_FUNC_NAME(memory, string)(struct pt_regs *regs, - ((u8 *)get_rloc_data(dest))[0] = '\0'; - *(u32 *)dest = make_data_rloc(0, get_rloc_offs(*(u32 *)dest)); - } else -- *(u32 *)dest = make_data_rloc(src - (u8 *)addr, -+ *(u32 *)dest = make_data_rloc(src - (const u8 __force_user *)addr, - get_rloc_offs(*(u32 *)dest)); - } - /* Return the length of string -- including null terminal byte */ -@@ -252,7 +252,7 @@ static __kprobes void FETCH_FUNC_NAME(memory, string_size)(struct pt_regs *regs, - set_fs(KERNEL_DS); - pagefault_disable(); - do { -- ret = __copy_from_user_inatomic(&c, (u8 *)addr + len, 1); -+ ret = __copy_from_user_inatomic(&c, (const u8 __force_user *)addr + len, 1); - len++; - } while (c && ret == 0 && len < MAX_STRING_SIZE); - pagefault_enable(); -diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c -index fd3c8aa..5f324a6 100644 ---- a/kernel/trace/trace_mmiotrace.c -+++ b/kernel/trace/trace_mmiotrace.c -@@ -24,7 +24,7 @@ struct header_iter { - static struct trace_array *mmio_trace_array; - static bool overrun_detected; - static unsigned long prev_overruns; --static atomic_t dropped_count; -+static atomic_unchecked_t dropped_count; - - static void mmio_reset_data(struct trace_array *tr) - { -@@ -127,7 +127,7 @@ static void mmio_close(struct trace_iterator *iter) - - static unsigned long count_overruns(struct trace_iterator *iter) - { -- unsigned long cnt = atomic_xchg(&dropped_count, 0); -+ unsigned long cnt = atomic_xchg_unchecked(&dropped_count, 0); - unsigned long over = ring_buffer_overruns(iter->tr->buffer); - - if (over > prev_overruns) -@@ -317,7 +317,7 @@ static void __trace_mmiotrace_rw(struct trace_array *tr, - event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_RW, - sizeof(*entry), 0, pc); - if (!event) { -- atomic_inc(&dropped_count); -+ atomic_inc_unchecked(&dropped_count); - return; - } - entry = ring_buffer_event_data(event); -@@ -347,7 +347,7 @@ static void __trace_mmiotrace_map(struct trace_array *tr, - event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_MAP, - sizeof(*entry), 0, pc); - if (!event) { -- atomic_inc(&dropped_count); -+ atomic_inc_unchecked(&dropped_count); - return; - } - entry = ring_buffer_event_data(event); -diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c -index df611a0..10d8b32 100644 ---- a/kernel/trace/trace_output.c -+++ b/kernel/trace/trace_output.c -@@ -278,7 +278,7 @@ int trace_seq_path(struct trace_seq *s, const struct path *path) - - p = d_path(path, s->buffer + s->len, PAGE_SIZE - s->len); - if (!IS_ERR(p)) { -- p = mangle_path(s->buffer + s->len, p, "\n"); -+ p = mangle_path(s->buffer + s->len, p, "\n\\"); - if (p) { - s->len = p - s->buffer; - return 1; -diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c -index d4545f4..a9010a1 100644 ---- a/kernel/trace/trace_stack.c -+++ b/kernel/trace/trace_stack.c -@@ -53,7 +53,7 @@ static inline void check_stack(void) - return; - - /* we do not handle interrupt stacks yet */ -- if (!object_is_on_stack(&this_size)) -+ if (!object_starts_on_stack(&this_size)) - return; - - local_irq_save(flags); -diff --git a/kernel/trace/trace_workqueue.c b/kernel/trace/trace_workqueue.c -index 209b379..7f76423 100644 ---- a/kernel/trace/trace_workqueue.c -+++ b/kernel/trace/trace_workqueue.c -@@ -22,7 +22,7 @@ struct cpu_workqueue_stats { - int cpu; - pid_t pid; - /* Can be inserted from interrupt or user context, need to be atomic */ -- atomic_t inserted; -+ atomic_unchecked_t inserted; - /* - * Don't need to be atomic, works are serialized in a single workqueue thread - * on a single CPU. -@@ -60,7 +60,7 @@ probe_workqueue_insertion(void *ignore, - spin_lock_irqsave(&workqueue_cpu_stat(cpu)->lock, flags); - list_for_each_entry(node, &workqueue_cpu_stat(cpu)->list, list) { - if (node->pid == wq_thread->pid) { -- atomic_inc(&node->inserted); -+ atomic_inc_unchecked(&node->inserted); - goto found; - } - } -@@ -210,7 +210,7 @@ static int workqueue_stat_show(struct seq_file *s, void *p) - tsk = get_pid_task(pid, PIDTYPE_PID); - if (tsk) { - seq_printf(s, "%3d %6d %6u %s\n", cws->cpu, -- atomic_read(&cws->inserted), cws->executed, -+ atomic_read_unchecked(&cws->inserted), cws->executed, - tsk->comm); - put_task_struct(tsk); - } -diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug -index 6777153..8519f60 100644 ---- a/lib/Kconfig.debug -+++ b/lib/Kconfig.debug -@@ -1132,6 +1132,7 @@ config LATENCYTOP - depends on DEBUG_KERNEL - depends on STACKTRACE_SUPPORT - depends on PROC_FS -+ depends on !GRKERNSEC_HIDESYM - select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND - select KALLSYMS - select KALLSYMS_ALL -diff --git a/lib/bitmap.c b/lib/bitmap.c -index b5a8b6a..a69623c 100644 ---- a/lib/bitmap.c -+++ b/lib/bitmap.c -@@ -421,7 +421,7 @@ int __bitmap_parse(const char *buf, unsigned int buflen, - { - int c, old_c, totaldigits, ndigits, nchunks, nbits; - u32 chunk; -- const char __user __force *ubuf = (const char __user __force *)buf; -+ const char __user *ubuf = (const char __force_user *)buf; - - bitmap_zero(maskp, nmaskbits); - -@@ -506,7 +506,7 @@ int bitmap_parse_user(const char __user *ubuf, - { - if (!access_ok(VERIFY_READ, ubuf, ulen)) - return -EFAULT; -- return __bitmap_parse((const char __force *)ubuf, -+ return __bitmap_parse((const char __force_kernel *)ubuf, - ulen, 1, maskp, nmaskbits); - - } -@@ -598,7 +598,7 @@ static int __bitmap_parselist(const char *buf, unsigned int buflen, - { - unsigned a, b; - int c, old_c, totaldigits; -- const char __user __force *ubuf = (const char __user __force *)buf; -+ const char __user *ubuf = (const char __force_user *)buf; - int exp_digit, in_range; - - totaldigits = c = 0; -@@ -698,7 +698,7 @@ int bitmap_parselist_user(const char __user *ubuf, - { - if (!access_ok(VERIFY_READ, ubuf, ulen)) - return -EFAULT; -- return __bitmap_parselist((const char __force *)ubuf, -+ return __bitmap_parselist((const char __force_kernel *)ubuf, - ulen, 1, maskp, nmaskbits); - } - EXPORT_SYMBOL(bitmap_parselist_user); -diff --git a/lib/bug.c b/lib/bug.c -index a28c141..2bd3d95 100644 ---- a/lib/bug.c -+++ b/lib/bug.c -@@ -133,6 +133,8 @@ enum bug_trap_type report_bug(unsigned long bugaddr, struct pt_regs *regs) - return BUG_TRAP_TYPE_NONE; - - bug = find_bug(bugaddr); -+ if (!bug) -+ return BUG_TRAP_TYPE_NONE; - - file = NULL; - line = 0; -diff --git a/lib/debugobjects.c b/lib/debugobjects.c -index 0ab9ae8..f01ceca 100644 ---- a/lib/debugobjects.c -+++ b/lib/debugobjects.c -@@ -288,7 +288,7 @@ static void debug_object_is_on_stack(void *addr, int onstack) - if (limit > 4) - return; - -- is_on_stack = object_is_on_stack(addr); -+ is_on_stack = object_starts_on_stack(addr); - if (is_on_stack == onstack) - return; - -diff --git a/lib/devres.c b/lib/devres.c -index 80b9c76..9e32279 100644 ---- a/lib/devres.c -+++ b/lib/devres.c -@@ -80,7 +80,7 @@ EXPORT_SYMBOL(devm_ioremap_nocache); - void devm_iounmap(struct device *dev, void __iomem *addr) - { - WARN_ON(devres_destroy(dev, devm_ioremap_release, devm_ioremap_match, -- (void *)addr)); -+ (void __force *)addr)); - iounmap(addr); - } - EXPORT_SYMBOL(devm_iounmap); -@@ -192,7 +192,7 @@ void devm_ioport_unmap(struct device *dev, void __iomem *addr) - { - ioport_unmap(addr); - WARN_ON(devres_destroy(dev, devm_ioport_map_release, -- devm_ioport_map_match, (void *)addr)); -+ devm_ioport_map_match, (void __force *)addr)); - } - EXPORT_SYMBOL(devm_ioport_unmap); - -diff --git a/lib/dma-debug.c b/lib/dma-debug.c -index 13ef233..5241683 100644 ---- a/lib/dma-debug.c -+++ b/lib/dma-debug.c -@@ -924,7 +924,7 @@ out: - - static void check_for_stack(struct device *dev, void *addr) - { -- if (object_is_on_stack(addr)) -+ if (object_starts_on_stack(addr)) - err_printk(dev, NULL, "DMA-API: device driver maps memory from" - "stack [addr=%p]\n", addr); - } -diff --git a/lib/extable.c b/lib/extable.c -index 4cac81e..63e9b8f 100644 ---- a/lib/extable.c -+++ b/lib/extable.c -@@ -13,6 +13,7 @@ - #include <linux/init.h> - #include <linux/sort.h> - #include <asm/uaccess.h> -+#include <asm/pgtable.h> - - #ifndef ARCH_HAS_SORT_EXTABLE - /* -@@ -36,8 +37,10 @@ static int cmp_ex(const void *a, const void *b) - void sort_extable(struct exception_table_entry *start, - struct exception_table_entry *finish) - { -+ pax_open_kernel(); - sort(start, finish - start, sizeof(struct exception_table_entry), - cmp_ex, NULL); -+ pax_close_kernel(); - } - - #ifdef CONFIG_MODULES -diff --git a/lib/inflate.c b/lib/inflate.c -index 013a761..c28f3fc 100644 ---- a/lib/inflate.c -+++ b/lib/inflate.c -@@ -269,7 +269,7 @@ static void free(void *where) - malloc_ptr = free_mem_ptr; - } - #else --#define malloc(a) kmalloc(a, GFP_KERNEL) -+#define malloc(a) kmalloc((a), GFP_KERNEL) - #define free(a) kfree(a) - #endif - -diff --git a/lib/ioremap.c b/lib/ioremap.c -index 0c9216c..863bd89 100644 ---- a/lib/ioremap.c -+++ b/lib/ioremap.c -@@ -38,7 +38,7 @@ static inline int ioremap_pmd_range(pud_t *pud, unsigned long addr, - unsigned long next; - - phys_addr -= addr; -- pmd = pmd_alloc(&init_mm, pud, addr); -+ pmd = pmd_alloc_kernel(&init_mm, pud, addr); - if (!pmd) - return -ENOMEM; - do { -@@ -56,7 +56,7 @@ static inline int ioremap_pud_range(pgd_t *pgd, unsigned long addr, - unsigned long next; - - phys_addr -= addr; -- pud = pud_alloc(&init_mm, pgd, addr); -+ pud = pud_alloc_kernel(&init_mm, pgd, addr); - if (!pud) - return -ENOMEM; - do { -diff --git a/lib/is_single_threaded.c b/lib/is_single_threaded.c -index bd2bea9..6b3c95e 100644 ---- a/lib/is_single_threaded.c -+++ b/lib/is_single_threaded.c -@@ -22,6 +22,9 @@ bool current_is_single_threaded(void) - struct task_struct *p, *t; - bool ret; - -+ if (!mm) -+ return true; -+ - if (atomic_read(&task->signal->live) != 1) - return false; - -diff --git a/lib/radix-tree.c b/lib/radix-tree.c -index 3ac50dc..240bb7e 100644 ---- a/lib/radix-tree.c -+++ b/lib/radix-tree.c -@@ -79,7 +79,7 @@ struct radix_tree_preload { - int nr; - struct radix_tree_node *nodes[RADIX_TREE_MAX_PATH]; - }; --static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads) = { 0, }; -+static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads); - - static inline void *ptr_to_indirect(void *ptr) - { -diff --git a/lib/vsprintf.c b/lib/vsprintf.c -index abbabec..362988d 100644 ---- a/lib/vsprintf.c -+++ b/lib/vsprintf.c -@@ -16,6 +16,9 @@ - * - scnprintf and vscnprintf - */ - -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+#define __INCLUDED_BY_HIDESYM 1 -+#endif - #include <stdarg.h> - #include <linux/module.h> /* for KSYM_SYMBOL_LEN */ - #include <linux/types.h> -@@ -433,7 +436,7 @@ char *symbol_string(char *buf, char *end, void *ptr, - char sym[KSYM_SYMBOL_LEN]; - if (ext == 'B') - sprint_backtrace(sym, value); -- else if (ext != 'f' && ext != 's') -+ else if (ext != 'f' && ext != 's' && ext != 'a') - sprint_symbol(sym, value); - else - kallsyms_lookup(value, NULL, NULL, NULL, sym); -@@ -809,7 +812,11 @@ char *netdev_feature_string(char *buf, char *end, const u8 *addr, - return number(buf, end, *(const netdev_features_t *)addr, spec); - } - -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+int kptr_restrict __read_mostly = 2; -+#else - int kptr_restrict __read_mostly; -+#endif - - /* - * Show a '%p' thing. A kernel extension is that the '%p' is followed -@@ -823,6 +830,8 @@ int kptr_restrict __read_mostly; - * - 'S' For symbolic direct pointers with offset - * - 's' For symbolic direct pointers without offset - * - 'B' For backtraced symbolic direct pointers with offset -+ * - 'A' For symbolic direct pointers with offset approved for use with GRKERNSEC_HIDESYM -+ * - 'a' For symbolic direct pointers without offset approved for use with GRKERNSEC_HIDESYM - * - 'R' For decoded struct resource, e.g., [mem 0x0-0x1f 64bit pref] - * - 'r' For raw struct resource, e.g., [mem 0x0-0x1f flags 0x201] - * - 'M' For a 6-byte MAC address, it prints the address in the -@@ -868,12 +877,12 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr, - { - if (!ptr && *fmt != 'K') { - /* -- * Print (null) with the same width as a pointer so it makes -+ * Print (nil) with the same width as a pointer so it makes - * tabular output look nice. - */ - if (spec.field_width == -1) - spec.field_width = 2 * sizeof(void *); -- return string(buf, end, "(null)", spec); -+ return string(buf, end, "(nil)", spec); - } - - switch (*fmt) { -@@ -883,6 +892,13 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr, - /* Fallthrough */ - case 'S': - case 's': -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ break; -+#else -+ return symbol_string(buf, end, ptr, spec, *fmt); -+#endif -+ case 'A': -+ case 'a': - case 'B': - return symbol_string(buf, end, ptr, spec, *fmt); - case 'R': -@@ -1653,11 +1669,11 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf) - typeof(type) value; \ - if (sizeof(type) == 8) { \ - args = PTR_ALIGN(args, sizeof(u32)); \ -- *(u32 *)&value = *(u32 *)args; \ -- *((u32 *)&value + 1) = *(u32 *)(args + 4); \ -+ *(u32 *)&value = *(const u32 *)args; \ -+ *((u32 *)&value + 1) = *(const u32 *)(args + 4); \ - } else { \ - args = PTR_ALIGN(args, sizeof(type)); \ -- value = *(typeof(type) *)args; \ -+ value = *(const typeof(type) *)args; \ - } \ - args += sizeof(type); \ - value; \ -@@ -1720,7 +1736,7 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf) - case FORMAT_TYPE_STR: { - const char *str_arg = args; - args += strlen(str_arg) + 1; -- str = string(str, end, (char *)str_arg, spec); -+ str = string(str, end, str_arg, spec); - break; - } - -diff --git a/localversion-grsec b/localversion-grsec -new file mode 100644 -index 0000000..7cd6065 ---- /dev/null -+++ b/localversion-grsec -@@ -0,0 +1 @@ -+-grsec -diff --git a/mm/Kconfig b/mm/Kconfig -index e338407..4210331 100644 ---- a/mm/Kconfig -+++ b/mm/Kconfig -@@ -247,10 +247,10 @@ config KSM - root has set /sys/kernel/mm/ksm/run to 1 (if CONFIG_SYSFS is set). - - config DEFAULT_MMAP_MIN_ADDR -- int "Low address space to protect from user allocation" -+ int "Low address space to protect from user allocation" - depends on MMU -- default 4096 -- help -+ default 65536 -+ help - This is the portion of low virtual memory which should be protected - from userspace allocation. Keeping a user from writing to low pages - can help reduce the impact of kernel NULL pointer bugs. -@@ -280,7 +280,7 @@ config MEMORY_FAILURE - - config HWPOISON_INJECT - tristate "HWPoison pages injector" -- depends on MEMORY_FAILURE && DEBUG_KERNEL && PROC_FS -+ depends on MEMORY_FAILURE && DEBUG_KERNEL && PROC_FS && !GRKERNSEC - select PROC_PAGE_MONITOR - - config NOMMU_INITIAL_TRIM_EXCESS -diff --git a/mm/filemap.c b/mm/filemap.c -index 79c4b2b..596b417 100644 ---- a/mm/filemap.c -+++ b/mm/filemap.c -@@ -1762,7 +1762,7 @@ int generic_file_mmap(struct file * file, struct vm_area_struct * vma) - struct address_space *mapping = file->f_mapping; - - if (!mapping->a_ops->readpage) -- return -ENOEXEC; -+ return -ENODEV; - file_accessed(file); - vma->vm_ops = &generic_file_vm_ops; - vma->vm_flags |= VM_CAN_NONLINEAR; -@@ -2168,6 +2168,7 @@ inline int generic_write_checks(struct file *file, loff_t *pos, size_t *count, i - *pos = i_size_read(inode); - - if (limit != RLIM_INFINITY) { -+ gr_learn_resource(current, RLIMIT_FSIZE,*pos, 0); - if (*pos >= limit) { - send_sig(SIGXFSZ, current, 0); - return -EFBIG; -diff --git a/mm/fremap.c b/mm/fremap.c -index 9ed4fd4..c42648d 100644 ---- a/mm/fremap.c -+++ b/mm/fremap.c -@@ -155,6 +155,11 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size, - retry: - vma = find_vma(mm, start); - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma && (mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_MAYEXEC)) -+ goto out; -+#endif -+ - /* - * Make sure the vma is shared, that it supports prefaulting, - * and that the remapped range is valid and fully within -diff --git a/mm/highmem.c b/mm/highmem.c -index 57d82c6..e9e0552 100644 ---- a/mm/highmem.c -+++ b/mm/highmem.c -@@ -125,9 +125,10 @@ static void flush_all_zero_pkmaps(void) - * So no dangers, even with speculative execution. - */ - page = pte_page(pkmap_page_table[i]); -+ pax_open_kernel(); - pte_clear(&init_mm, (unsigned long)page_address(page), - &pkmap_page_table[i]); -- -+ pax_close_kernel(); - set_page_address(page, NULL); - need_flush = 1; - } -@@ -186,9 +187,11 @@ start: - } - } - vaddr = PKMAP_ADDR(last_pkmap_nr); -+ -+ pax_open_kernel(); - set_pte_at(&init_mm, vaddr, - &(pkmap_page_table[last_pkmap_nr]), mk_pte(page, kmap_prot)); -- -+ pax_close_kernel(); - pkmap_count[last_pkmap_nr] = 1; - set_page_address(page, (void *)vaddr); - -diff --git a/mm/huge_memory.c b/mm/huge_memory.c -index f0e5306..cb9398e 100644 ---- a/mm/huge_memory.c -+++ b/mm/huge_memory.c -@@ -733,7 +733,7 @@ out: - * run pte_offset_map on the pmd, if an huge pmd could - * materialize from under us from a different thread. - */ -- if (unlikely(__pte_alloc(mm, vma, pmd, address))) -+ if (unlikely(pmd_none(*pmd) && __pte_alloc(mm, vma, pmd, address))) - return VM_FAULT_OOM; - /* if an huge pmd materialized from under us just retry later */ - if (unlikely(pmd_trans_huge(*pmd))) -diff --git a/mm/hugetlb.c b/mm/hugetlb.c -index 263e177..3f36aec 100644 ---- a/mm/hugetlb.c -+++ b/mm/hugetlb.c -@@ -2446,6 +2446,27 @@ static int unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma, - return 1; - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+static void pax_mirror_huge_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m) -+{ -+ struct mm_struct *mm = vma->vm_mm; -+ struct vm_area_struct *vma_m; -+ unsigned long address_m; -+ pte_t *ptep_m; -+ -+ vma_m = pax_find_mirror_vma(vma); -+ if (!vma_m) -+ return; -+ -+ BUG_ON(address >= SEGMEXEC_TASK_SIZE); -+ address_m = address + SEGMEXEC_TASK_SIZE; -+ ptep_m = huge_pte_offset(mm, address_m & HPAGE_MASK); -+ get_page(page_m); -+ hugepage_add_anon_rmap(page_m, vma_m, address_m); -+ set_huge_pte_at(mm, address_m, ptep_m, make_huge_pte(vma_m, page_m, 0)); -+} -+#endif -+ - /* - * Hugetlb_cow() should be called with page lock of the original hugepage held. - * Called with hugetlb_instantiation_mutex held and pte_page locked so we -@@ -2558,6 +2579,11 @@ retry_avoidcopy: - make_huge_pte(vma, new_page, 1)); - page_remove_rmap(old_page); - hugepage_add_new_anon_rmap(new_page, vma, address); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ pax_mirror_huge_pte(vma, address, new_page); -+#endif -+ - /* Make the old page be freed below */ - new_page = old_page; - mmu_notifier_invalidate_range_end(mm, -@@ -2712,6 +2738,10 @@ retry: - && (vma->vm_flags & VM_SHARED))); - set_huge_pte_at(mm, address, ptep, new_pte); - -+#ifdef CONFIG_PAX_SEGMEXEC -+ pax_mirror_huge_pte(vma, address, page); -+#endif -+ - if ((flags & FAULT_FLAG_WRITE) && !(vma->vm_flags & VM_SHARED)) { - /* Optimization, do the COW without a second fault */ - ret = hugetlb_cow(mm, vma, address, ptep, new_pte, page); -@@ -2741,6 +2771,10 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, - static DEFINE_MUTEX(hugetlb_instantiation_mutex); - struct hstate *h = hstate_vma(vma); - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m; -+#endif -+ - address &= huge_page_mask(h); - - ptep = huge_pte_offset(mm, address); -@@ -2754,6 +2788,26 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, - VM_FAULT_SET_HINDEX(h - hstates); - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+ vma_m = pax_find_mirror_vma(vma); -+ if (vma_m) { -+ unsigned long address_m; -+ -+ if (vma->vm_start > vma_m->vm_start) { -+ address_m = address; -+ address -= SEGMEXEC_TASK_SIZE; -+ vma = vma_m; -+ h = hstate_vma(vma); -+ } else -+ address_m = address + SEGMEXEC_TASK_SIZE; -+ -+ if (!huge_pte_alloc(mm, address_m, huge_page_size(h))) -+ return VM_FAULT_OOM; -+ address_m &= HPAGE_MASK; -+ unmap_hugepage_range(vma, address_m, address_m + HPAGE_SIZE, NULL); -+ } -+#endif -+ - ptep = huge_pte_alloc(mm, address, huge_page_size(h)); - if (!ptep) - return VM_FAULT_OOM; -diff --git a/mm/internal.h b/mm/internal.h -index 2189af4..f2ca332 100644 ---- a/mm/internal.h -+++ b/mm/internal.h -@@ -95,6 +95,7 @@ extern void putback_lru_page(struct page *page); - * in mm/page_alloc.c - */ - extern void __free_pages_bootmem(struct page *page, unsigned int order); -+extern void free_compound_page(struct page *page); - extern void prep_compound_page(struct page *page, unsigned long order); - #ifdef CONFIG_MEMORY_FAILURE - extern bool is_free_buddy_page(struct page *page); -diff --git a/mm/kmemleak.c b/mm/kmemleak.c -index 45eb621..6ccd8ea 100644 ---- a/mm/kmemleak.c -+++ b/mm/kmemleak.c -@@ -363,7 +363,7 @@ static void print_unreferenced(struct seq_file *seq, - - for (i = 0; i < object->trace_len; i++) { - void *ptr = (void *)object->trace[i]; -- seq_printf(seq, " [<%p>] %pS\n", ptr, ptr); -+ seq_printf(seq, " [<%p>] %pA\n", ptr, ptr); - } - } - -diff --git a/mm/maccess.c b/mm/maccess.c -index d53adf9..03a24bf 100644 ---- a/mm/maccess.c -+++ b/mm/maccess.c -@@ -26,7 +26,7 @@ long __probe_kernel_read(void *dst, const void *src, size_t size) - set_fs(KERNEL_DS); - pagefault_disable(); - ret = __copy_from_user_inatomic(dst, -- (__force const void __user *)src, size); -+ (const void __force_user *)src, size); - pagefault_enable(); - set_fs(old_fs); - -@@ -53,7 +53,7 @@ long __probe_kernel_write(void *dst, const void *src, size_t size) - - set_fs(KERNEL_DS); - pagefault_disable(); -- ret = __copy_to_user_inatomic((__force void __user *)dst, src, size); -+ ret = __copy_to_user_inatomic((void __force_user *)dst, src, size); - pagefault_enable(); - set_fs(old_fs); - -diff --git a/mm/madvise.c b/mm/madvise.c -index 1ccbba5..79e16f9 100644 ---- a/mm/madvise.c -+++ b/mm/madvise.c -@@ -45,6 +45,10 @@ static long madvise_behavior(struct vm_area_struct * vma, - pgoff_t pgoff; - unsigned long new_flags = vma->vm_flags; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m; -+#endif -+ - switch (behavior) { - case MADV_NORMAL: - new_flags = new_flags & ~VM_RAND_READ & ~VM_SEQ_READ; -@@ -116,6 +120,13 @@ success: - /* - * vm_flags is protected by the mmap_sem held in write mode. - */ -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ vma_m = pax_find_mirror_vma(vma); -+ if (vma_m) -+ vma_m->vm_flags = new_flags & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT); -+#endif -+ - vma->vm_flags = new_flags; - - out: -@@ -174,6 +185,11 @@ static long madvise_dontneed(struct vm_area_struct * vma, - struct vm_area_struct ** prev, - unsigned long start, unsigned long end) - { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m; -+#endif -+ - *prev = vma; - if (vma->vm_flags & (VM_LOCKED|VM_HUGETLB|VM_PFNMAP)) - return -EINVAL; -@@ -186,6 +202,21 @@ static long madvise_dontneed(struct vm_area_struct * vma, - zap_page_range(vma, start, end - start, &details); - } else - zap_page_range(vma, start, end - start, NULL); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ vma_m = pax_find_mirror_vma(vma); -+ if (vma_m) { -+ if (unlikely(vma->vm_flags & VM_NONLINEAR)) { -+ struct zap_details details = { -+ .nonlinear_vma = vma_m, -+ .last_index = ULONG_MAX, -+ }; -+ zap_page_range(vma, start + SEGMEXEC_TASK_SIZE, end - start, &details); -+ } else -+ zap_page_range(vma, start + SEGMEXEC_TASK_SIZE, end - start, NULL); -+ } -+#endif -+ - return 0; - } - -@@ -384,6 +415,16 @@ SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior) - if (end < start) - goto out; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) { -+ if (end > SEGMEXEC_TASK_SIZE) -+ goto out; -+ } else -+#endif -+ -+ if (end > TASK_SIZE) -+ goto out; -+ - error = 0; - if (end == start) - goto out; -diff --git a/mm/memory-failure.c b/mm/memory-failure.c -index 97cc273..6ed703f 100644 ---- a/mm/memory-failure.c -+++ b/mm/memory-failure.c -@@ -61,7 +61,7 @@ int sysctl_memory_failure_early_kill __read_mostly = 0; - - int sysctl_memory_failure_recovery __read_mostly = 1; - --atomic_long_t mce_bad_pages __read_mostly = ATOMIC_LONG_INIT(0); -+atomic_long_unchecked_t mce_bad_pages __read_mostly = ATOMIC_LONG_INIT(0); - - #if defined(CONFIG_HWPOISON_INJECT) || defined(CONFIG_HWPOISON_INJECT_MODULE) - -@@ -202,7 +202,7 @@ static int kill_proc(struct task_struct *t, unsigned long addr, int trapno, - pfn, t->comm, t->pid); - si.si_signo = SIGBUS; - si.si_errno = 0; -- si.si_addr = (void *)addr; -+ si.si_addr = (void __user *)addr; - #ifdef __ARCH_SI_TRAPNO - si.si_trapno = trapno; - #endif -@@ -1036,7 +1036,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags) - } - - nr_pages = 1 << compound_trans_order(hpage); -- atomic_long_add(nr_pages, &mce_bad_pages); -+ atomic_long_add_unchecked(nr_pages, &mce_bad_pages); - - /* - * We need/can do nothing about count=0 pages. -@@ -1066,7 +1066,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags) - if (!PageHWPoison(hpage) - || (hwpoison_filter(p) && TestClearPageHWPoison(p)) - || (p != hpage && TestSetPageHWPoison(hpage))) { -- atomic_long_sub(nr_pages, &mce_bad_pages); -+ atomic_long_sub_unchecked(nr_pages, &mce_bad_pages); - return 0; - } - set_page_hwpoison_huge_page(hpage); -@@ -1124,7 +1124,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags) - } - if (hwpoison_filter(p)) { - if (TestClearPageHWPoison(p)) -- atomic_long_sub(nr_pages, &mce_bad_pages); -+ atomic_long_sub_unchecked(nr_pages, &mce_bad_pages); - unlock_page(hpage); - put_page(hpage); - return 0; -@@ -1319,7 +1319,7 @@ int unpoison_memory(unsigned long pfn) - return 0; - } - if (TestClearPageHWPoison(p)) -- atomic_long_sub(nr_pages, &mce_bad_pages); -+ atomic_long_sub_unchecked(nr_pages, &mce_bad_pages); - pr_info("MCE: Software-unpoisoned free page %#lx\n", pfn); - return 0; - } -@@ -1333,7 +1333,7 @@ int unpoison_memory(unsigned long pfn) - */ - if (TestClearPageHWPoison(page)) { - pr_info("MCE: Software-unpoisoned page %#lx\n", pfn); -- atomic_long_sub(nr_pages, &mce_bad_pages); -+ atomic_long_sub_unchecked(nr_pages, &mce_bad_pages); - freeit = 1; - if (PageHuge(page)) - clear_page_hwpoison_huge_page(page); -@@ -1446,7 +1446,7 @@ static int soft_offline_huge_page(struct page *page, int flags) - } - done: - if (!PageHWPoison(hpage)) -- atomic_long_add(1 << compound_trans_order(hpage), &mce_bad_pages); -+ atomic_long_add_unchecked(1 << compound_trans_order(hpage), &mce_bad_pages); - set_page_hwpoison_huge_page(hpage); - dequeue_hwpoisoned_huge_page(hpage); - /* keep elevated page count for bad page */ -@@ -1577,7 +1577,7 @@ int soft_offline_page(struct page *page, int flags) - return ret; - - done: -- atomic_long_add(1, &mce_bad_pages); -+ atomic_long_add_unchecked(1, &mce_bad_pages); - SetPageHWPoison(page); - /* keep elevated page count for bad page */ - return ret; -diff --git a/mm/memory.c b/mm/memory.c -index 6105f47..3363489 100644 ---- a/mm/memory.c -+++ b/mm/memory.c -@@ -434,8 +434,12 @@ static inline void free_pmd_range(struct mmu_gather *tlb, pud_t *pud, - return; - - pmd = pmd_offset(pud, start); -+ -+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_PER_CPU_PGD) - pud_clear(pud); - pmd_free_tlb(tlb, pmd, start); -+#endif -+ - } - - static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd, -@@ -466,9 +470,12 @@ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd, - if (end - 1 > ceiling - 1) - return; - -+#if !defined(CONFIG_X86_64) || !defined(CONFIG_PAX_PER_CPU_PGD) - pud = pud_offset(pgd, start); - pgd_clear(pgd); - pud_free_tlb(tlb, pud, start); -+#endif -+ - } - - /* -@@ -1597,12 +1604,6 @@ no_page_table: - return page; - } - --static inline int stack_guard_page(struct vm_area_struct *vma, unsigned long addr) --{ -- return stack_guard_page_start(vma, addr) || -- stack_guard_page_end(vma, addr+PAGE_SIZE); --} -- - /** - * __get_user_pages() - pin user pages in memory - * @tsk: task_struct of target task -@@ -1675,10 +1676,10 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, - (VM_MAYREAD | VM_MAYWRITE) : (VM_READ | VM_WRITE); - i = 0; - -- do { -+ while (nr_pages) { - struct vm_area_struct *vma; - -- vma = find_extend_vma(mm, start); -+ vma = find_vma(mm, start); - if (!vma && in_gate_area(mm, start)) { - unsigned long pg = start & PAGE_MASK; - pgd_t *pgd; -@@ -1726,7 +1727,7 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, - goto next_page; - } - -- if (!vma || -+ if (!vma || start < vma->vm_start || - (vma->vm_flags & (VM_IO | VM_PFNMAP)) || - !(vm_flags & vma->vm_flags)) - return i ? : -EFAULT; -@@ -1753,11 +1754,6 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, - int ret; - unsigned int fault_flags = 0; - -- /* For mlock, just skip the stack guard page. */ -- if (foll_flags & FOLL_MLOCK) { -- if (stack_guard_page(vma, start)) -- goto next_page; -- } - if (foll_flags & FOLL_WRITE) - fault_flags |= FAULT_FLAG_WRITE; - if (nonblocking) -@@ -1831,7 +1827,7 @@ next_page: - start += PAGE_SIZE; - nr_pages--; - } while (nr_pages && start < vma->vm_end); -- } while (nr_pages); -+ } - return i; - } - EXPORT_SYMBOL(__get_user_pages); -@@ -2038,6 +2034,10 @@ static int insert_page(struct vm_area_struct *vma, unsigned long addr, - page_add_file_rmap(page); - set_pte_at(mm, addr, pte, mk_pte(page, prot)); - -+#ifdef CONFIG_PAX_SEGMEXEC -+ pax_mirror_file_pte(vma, addr, page, ptl); -+#endif -+ - retval = 0; - pte_unmap_unlock(pte, ptl); - return retval; -@@ -2072,10 +2072,22 @@ out: - int vm_insert_page(struct vm_area_struct *vma, unsigned long addr, - struct page *page) - { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m; -+#endif -+ - if (addr < vma->vm_start || addr >= vma->vm_end) - return -EFAULT; - if (!page_count(page)) - return -EINVAL; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ vma_m = pax_find_mirror_vma(vma); -+ if (vma_m) -+ vma_m->vm_flags |= VM_INSERTPAGE; -+#endif -+ - vma->vm_flags |= VM_INSERTPAGE; - return insert_page(vma, addr, page, vma->vm_page_prot); - } -@@ -2161,6 +2173,7 @@ int vm_insert_mixed(struct vm_area_struct *vma, unsigned long addr, - unsigned long pfn) - { - BUG_ON(!(vma->vm_flags & VM_MIXEDMAP)); -+ BUG_ON(vma->vm_mirror); - - if (addr < vma->vm_start || addr >= vma->vm_end) - return -EFAULT; -@@ -2368,7 +2381,9 @@ static int apply_to_pmd_range(struct mm_struct *mm, pud_t *pud, - - BUG_ON(pud_huge(*pud)); - -- pmd = pmd_alloc(mm, pud, addr); -+ pmd = (mm == &init_mm) ? -+ pmd_alloc_kernel(mm, pud, addr) : -+ pmd_alloc(mm, pud, addr); - if (!pmd) - return -ENOMEM; - do { -@@ -2388,7 +2403,9 @@ static int apply_to_pud_range(struct mm_struct *mm, pgd_t *pgd, - unsigned long next; - int err; - -- pud = pud_alloc(mm, pgd, addr); -+ pud = (mm == &init_mm) ? -+ pud_alloc_kernel(mm, pgd, addr) : -+ pud_alloc(mm, pgd, addr); - if (!pud) - return -ENOMEM; - do { -@@ -2476,6 +2493,186 @@ static inline void cow_user_page(struct page *dst, struct page *src, unsigned lo - copy_user_highpage(dst, src, va, vma); - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+static void pax_unmap_mirror_pte(struct vm_area_struct *vma, unsigned long address, pmd_t *pmd) -+{ -+ struct mm_struct *mm = vma->vm_mm; -+ spinlock_t *ptl; -+ pte_t *pte, entry; -+ -+ pte = pte_offset_map_lock(mm, pmd, address, &ptl); -+ entry = *pte; -+ if (!pte_present(entry)) { -+ if (!pte_none(entry)) { -+ BUG_ON(pte_file(entry)); -+ free_swap_and_cache(pte_to_swp_entry(entry)); -+ pte_clear_not_present_full(mm, address, pte, 0); -+ } -+ } else { -+ struct page *page; -+ -+ flush_cache_page(vma, address, pte_pfn(entry)); -+ entry = ptep_clear_flush(vma, address, pte); -+ BUG_ON(pte_dirty(entry)); -+ page = vm_normal_page(vma, address, entry); -+ if (page) { -+ update_hiwater_rss(mm); -+ if (PageAnon(page)) -+ dec_mm_counter_fast(mm, MM_ANONPAGES); -+ else -+ dec_mm_counter_fast(mm, MM_FILEPAGES); -+ page_remove_rmap(page); -+ page_cache_release(page); -+ } -+ } -+ pte_unmap_unlock(pte, ptl); -+} -+ -+/* PaX: if vma is mirrored, synchronize the mirror's PTE -+ * -+ * the ptl of the lower mapped page is held on entry and is not released on exit -+ * or inside to ensure atomic changes to the PTE states (swapout, mremap, munmap, etc) -+ */ -+static void pax_mirror_anon_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl) -+{ -+ struct mm_struct *mm = vma->vm_mm; -+ unsigned long address_m; -+ spinlock_t *ptl_m; -+ struct vm_area_struct *vma_m; -+ pmd_t *pmd_m; -+ pte_t *pte_m, entry_m; -+ -+ BUG_ON(!page_m || !PageAnon(page_m)); -+ -+ vma_m = pax_find_mirror_vma(vma); -+ if (!vma_m) -+ return; -+ -+ BUG_ON(!PageLocked(page_m)); -+ BUG_ON(address >= SEGMEXEC_TASK_SIZE); -+ address_m = address + SEGMEXEC_TASK_SIZE; -+ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m); -+ pte_m = pte_offset_map(pmd_m, address_m); -+ ptl_m = pte_lockptr(mm, pmd_m); -+ if (ptl != ptl_m) { -+ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING); -+ if (!pte_none(*pte_m)) -+ goto out; -+ } -+ -+ entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot); -+ page_cache_get(page_m); -+ page_add_anon_rmap(page_m, vma_m, address_m); -+ inc_mm_counter_fast(mm, MM_ANONPAGES); -+ set_pte_at(mm, address_m, pte_m, entry_m); -+ update_mmu_cache(vma_m, address_m, entry_m); -+out: -+ if (ptl != ptl_m) -+ spin_unlock(ptl_m); -+ pte_unmap(pte_m); -+ unlock_page(page_m); -+} -+ -+void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl) -+{ -+ struct mm_struct *mm = vma->vm_mm; -+ unsigned long address_m; -+ spinlock_t *ptl_m; -+ struct vm_area_struct *vma_m; -+ pmd_t *pmd_m; -+ pte_t *pte_m, entry_m; -+ -+ BUG_ON(!page_m || PageAnon(page_m)); -+ -+ vma_m = pax_find_mirror_vma(vma); -+ if (!vma_m) -+ return; -+ -+ BUG_ON(address >= SEGMEXEC_TASK_SIZE); -+ address_m = address + SEGMEXEC_TASK_SIZE; -+ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m); -+ pte_m = pte_offset_map(pmd_m, address_m); -+ ptl_m = pte_lockptr(mm, pmd_m); -+ if (ptl != ptl_m) { -+ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING); -+ if (!pte_none(*pte_m)) -+ goto out; -+ } -+ -+ entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot); -+ page_cache_get(page_m); -+ page_add_file_rmap(page_m); -+ inc_mm_counter_fast(mm, MM_FILEPAGES); -+ set_pte_at(mm, address_m, pte_m, entry_m); -+ update_mmu_cache(vma_m, address_m, entry_m); -+out: -+ if (ptl != ptl_m) -+ spin_unlock(ptl_m); -+ pte_unmap(pte_m); -+} -+ -+static void pax_mirror_pfn_pte(struct vm_area_struct *vma, unsigned long address, unsigned long pfn_m, spinlock_t *ptl) -+{ -+ struct mm_struct *mm = vma->vm_mm; -+ unsigned long address_m; -+ spinlock_t *ptl_m; -+ struct vm_area_struct *vma_m; -+ pmd_t *pmd_m; -+ pte_t *pte_m, entry_m; -+ -+ vma_m = pax_find_mirror_vma(vma); -+ if (!vma_m) -+ return; -+ -+ BUG_ON(address >= SEGMEXEC_TASK_SIZE); -+ address_m = address + SEGMEXEC_TASK_SIZE; -+ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m); -+ pte_m = pte_offset_map(pmd_m, address_m); -+ ptl_m = pte_lockptr(mm, pmd_m); -+ if (ptl != ptl_m) { -+ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING); -+ if (!pte_none(*pte_m)) -+ goto out; -+ } -+ -+ entry_m = pfn_pte(pfn_m, vma_m->vm_page_prot); -+ set_pte_at(mm, address_m, pte_m, entry_m); -+out: -+ if (ptl != ptl_m) -+ spin_unlock(ptl_m); -+ pte_unmap(pte_m); -+} -+ -+static void pax_mirror_pte(struct vm_area_struct *vma, unsigned long address, pte_t *pte, pmd_t *pmd, spinlock_t *ptl) -+{ -+ struct page *page_m; -+ pte_t entry; -+ -+ if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC)) -+ goto out; -+ -+ entry = *pte; -+ page_m = vm_normal_page(vma, address, entry); -+ if (!page_m) -+ pax_mirror_pfn_pte(vma, address, pte_pfn(entry), ptl); -+ else if (PageAnon(page_m)) { -+ if (pax_find_mirror_vma(vma)) { -+ pte_unmap_unlock(pte, ptl); -+ lock_page(page_m); -+ pte = pte_offset_map_lock(vma->vm_mm, pmd, address, &ptl); -+ if (pte_same(entry, *pte)) -+ pax_mirror_anon_pte(vma, address, page_m, ptl); -+ else -+ unlock_page(page_m); -+ } -+ } else -+ pax_mirror_file_pte(vma, address, page_m, ptl); -+ -+out: -+ pte_unmap_unlock(pte, ptl); -+} -+#endif -+ - /* - * This routine handles present pages, when users try to write - * to a shared page. It is done by copying the page to a new address -@@ -2687,6 +2884,12 @@ gotten: - */ - page_table = pte_offset_map_lock(mm, pmd, address, &ptl); - if (likely(pte_same(*page_table, orig_pte))) { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (pax_find_mirror_vma(vma)) -+ BUG_ON(!trylock_page(new_page)); -+#endif -+ - if (old_page) { - if (!PageAnon(old_page)) { - dec_mm_counter_fast(mm, MM_FILEPAGES); -@@ -2738,6 +2941,10 @@ gotten: - page_remove_rmap(old_page); - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+ pax_mirror_anon_pte(vma, address, new_page, ptl); -+#endif -+ - /* Free the old page.. */ - new_page = old_page; - ret |= VM_FAULT_WRITE; -@@ -3017,6 +3224,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma, - swap_free(entry); - if (vm_swap_full() || (vma->vm_flags & VM_LOCKED) || PageMlocked(page)) - try_to_free_swap(page); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((flags & FAULT_FLAG_WRITE) || !pax_find_mirror_vma(vma)) -+#endif -+ - unlock_page(page); - if (swapcache) { - /* -@@ -3040,6 +3252,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma, - - /* No need to invalidate - it was non-present before */ - update_mmu_cache(vma, address, page_table); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ pax_mirror_anon_pte(vma, address, page, ptl); -+#endif -+ - unlock: - pte_unmap_unlock(page_table, ptl); - out: -@@ -3059,40 +3276,6 @@ out_release: - } - - /* -- * This is like a special single-page "expand_{down|up}wards()", -- * except we must first make sure that 'address{-|+}PAGE_SIZE' -- * doesn't hit another vma. -- */ --static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned long address) --{ -- address &= PAGE_MASK; -- if ((vma->vm_flags & VM_GROWSDOWN) && address == vma->vm_start) { -- struct vm_area_struct *prev = vma->vm_prev; -- -- /* -- * Is there a mapping abutting this one below? -- * -- * That's only ok if it's the same stack mapping -- * that has gotten split.. -- */ -- if (prev && prev->vm_end == address) -- return prev->vm_flags & VM_GROWSDOWN ? 0 : -ENOMEM; -- -- expand_downwards(vma, address - PAGE_SIZE); -- } -- if ((vma->vm_flags & VM_GROWSUP) && address + PAGE_SIZE == vma->vm_end) { -- struct vm_area_struct *next = vma->vm_next; -- -- /* As VM_GROWSDOWN but s/below/above/ */ -- if (next && next->vm_start == address + PAGE_SIZE) -- return next->vm_flags & VM_GROWSUP ? 0 : -ENOMEM; -- -- expand_upwards(vma, address + PAGE_SIZE); -- } -- return 0; --} -- --/* - * We enter with non-exclusive mmap_sem (to exclude vma changes, - * but allow concurrent faults), and pte mapped but not yet locked. - * We return with mmap_sem still held, but pte unmapped and unlocked. -@@ -3101,27 +3284,23 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma, - unsigned long address, pte_t *page_table, pmd_t *pmd, - unsigned int flags) - { -- struct page *page; -+ struct page *page = NULL; - spinlock_t *ptl; - pte_t entry; - -- pte_unmap(page_table); -- -- /* Check if we need to add a guard page to the stack */ -- if (check_stack_guard_page(vma, address) < 0) -- return VM_FAULT_SIGBUS; -- -- /* Use the zero-page for reads */ - if (!(flags & FAULT_FLAG_WRITE)) { - entry = pte_mkspecial(pfn_pte(my_zero_pfn(address), - vma->vm_page_prot)); -- page_table = pte_offset_map_lock(mm, pmd, address, &ptl); -+ ptl = pte_lockptr(mm, pmd); -+ spin_lock(ptl); - if (!pte_none(*page_table)) - goto unlock; - goto setpte; - } - - /* Allocate our own private page. */ -+ pte_unmap(page_table); -+ - if (unlikely(anon_vma_prepare(vma))) - goto oom; - page = alloc_zeroed_user_highpage_movable(vma, address); -@@ -3140,6 +3319,11 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma, - if (!pte_none(*page_table)) - goto release; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (pax_find_mirror_vma(vma)) -+ BUG_ON(!trylock_page(page)); -+#endif -+ - inc_mm_counter_fast(mm, MM_ANONPAGES); - page_add_new_anon_rmap(page, vma, address); - setpte: -@@ -3147,6 +3331,12 @@ setpte: - - /* No need to invalidate - it was non-present before */ - update_mmu_cache(vma, address, page_table); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (page) -+ pax_mirror_anon_pte(vma, address, page, ptl); -+#endif -+ - unlock: - pte_unmap_unlock(page_table, ptl); - return 0; -@@ -3290,6 +3480,12 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma, - */ - /* Only go through if we didn't race with anybody else... */ - if (likely(pte_same(*page_table, orig_pte))) { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (anon && pax_find_mirror_vma(vma)) -+ BUG_ON(!trylock_page(page)); -+#endif -+ - flush_icache_page(vma, page); - entry = mk_pte(page, vma->vm_page_prot); - if (flags & FAULT_FLAG_WRITE) -@@ -3309,6 +3505,14 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma, - - /* no need to invalidate: a not-present page won't be cached */ - update_mmu_cache(vma, address, page_table); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (anon) -+ pax_mirror_anon_pte(vma, address, page, ptl); -+ else -+ pax_mirror_file_pte(vma, address, page, ptl); -+#endif -+ - } else { - if (cow_page) - mem_cgroup_uncharge_page(cow_page); -@@ -3462,6 +3666,12 @@ int handle_pte_fault(struct mm_struct *mm, - if (flags & FAULT_FLAG_WRITE) - flush_tlb_fix_spurious_fault(vma, address); - } -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ pax_mirror_pte(vma, address, pte, pmd, ptl); -+ return 0; -+#endif -+ - unlock: - pte_unmap_unlock(pte, ptl); - return 0; -@@ -3478,6 +3688,10 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma, - pmd_t *pmd; - pte_t *pte; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m; -+#endif -+ - __set_current_state(TASK_RUNNING); - - count_vm_event(PGFAULT); -@@ -3489,6 +3703,34 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma, - if (unlikely(is_vm_hugetlb_page(vma))) - return hugetlb_fault(mm, vma, address, flags); - -+#ifdef CONFIG_PAX_SEGMEXEC -+ vma_m = pax_find_mirror_vma(vma); -+ if (vma_m) { -+ unsigned long address_m; -+ pgd_t *pgd_m; -+ pud_t *pud_m; -+ pmd_t *pmd_m; -+ -+ if (vma->vm_start > vma_m->vm_start) { -+ address_m = address; -+ address -= SEGMEXEC_TASK_SIZE; -+ vma = vma_m; -+ } else -+ address_m = address + SEGMEXEC_TASK_SIZE; -+ -+ pgd_m = pgd_offset(mm, address_m); -+ pud_m = pud_alloc(mm, pgd_m, address_m); -+ if (!pud_m) -+ return VM_FAULT_OOM; -+ pmd_m = pmd_alloc(mm, pud_m, address_m); -+ if (!pmd_m) -+ return VM_FAULT_OOM; -+ if (!pmd_present(*pmd_m) && __pte_alloc(mm, vma_m, pmd_m, address_m)) -+ return VM_FAULT_OOM; -+ pax_unmap_mirror_pte(vma_m, address_m, pmd_m); -+ } -+#endif -+ - pgd = pgd_offset(mm, address); - pud = pud_alloc(mm, pgd, address); - if (!pud) -@@ -3518,7 +3760,7 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma, - * run pte_offset_map on the pmd, if an huge pmd could - * materialize from under us from a different thread. - */ -- if (unlikely(pmd_none(*pmd)) && __pte_alloc(mm, vma, pmd, address)) -+ if (unlikely(pmd_none(*pmd) && __pte_alloc(mm, vma, pmd, address))) - return VM_FAULT_OOM; - /* if an huge pmd materialized from under us just retry later */ - if (unlikely(pmd_trans_huge(*pmd))) -@@ -3555,6 +3797,23 @@ int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address) - spin_unlock(&mm->page_table_lock); - return 0; - } -+ -+int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address) -+{ -+ pud_t *new = pud_alloc_one(mm, address); -+ if (!new) -+ return -ENOMEM; -+ -+ smp_wmb(); /* See comment in __pte_alloc */ -+ -+ spin_lock(&mm->page_table_lock); -+ if (pgd_present(*pgd)) /* Another has populated it */ -+ pud_free(mm, new); -+ else -+ pgd_populate_kernel(mm, pgd, new); -+ spin_unlock(&mm->page_table_lock); -+ return 0; -+} - #endif /* __PAGETABLE_PUD_FOLDED */ - - #ifndef __PAGETABLE_PMD_FOLDED -@@ -3585,6 +3844,30 @@ int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address) - spin_unlock(&mm->page_table_lock); - return 0; - } -+ -+int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address) -+{ -+ pmd_t *new = pmd_alloc_one(mm, address); -+ if (!new) -+ return -ENOMEM; -+ -+ smp_wmb(); /* See comment in __pte_alloc */ -+ -+ spin_lock(&mm->page_table_lock); -+#ifndef __ARCH_HAS_4LEVEL_HACK -+ if (pud_present(*pud)) /* Another has populated it */ -+ pmd_free(mm, new); -+ else -+ pud_populate_kernel(mm, pud, new); -+#else -+ if (pgd_present(*pud)) /* Another has populated it */ -+ pmd_free(mm, new); -+ else -+ pgd_populate_kernel(mm, pud, new); -+#endif /* __ARCH_HAS_4LEVEL_HACK */ -+ spin_unlock(&mm->page_table_lock); -+ return 0; -+} - #endif /* __PAGETABLE_PMD_FOLDED */ - - int make_pages_present(unsigned long addr, unsigned long end) -@@ -3622,7 +3905,7 @@ static int __init gate_vma_init(void) - gate_vma.vm_start = FIXADDR_USER_START; - gate_vma.vm_end = FIXADDR_USER_END; - gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC; -- gate_vma.vm_page_prot = __P101; -+ gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags); - - return 0; - } -diff --git a/mm/mempolicy.c b/mm/mempolicy.c -index bf5b485..e44c2cb 100644 ---- a/mm/mempolicy.c -+++ b/mm/mempolicy.c -@@ -619,6 +619,10 @@ static int mbind_range(struct mm_struct *mm, unsigned long start, - unsigned long vmstart; - unsigned long vmend; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m; -+#endif -+ - vma = find_vma(mm, start); - if (!vma || vma->vm_start > start) - return -EFAULT; -@@ -672,6 +676,16 @@ static int mbind_range(struct mm_struct *mm, unsigned long start, - if (err) - goto out; - } -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ vma_m = pax_find_mirror_vma(vma); -+ if (vma_m && vma_m->vm_ops && vma_m->vm_ops->set_policy) { -+ err = vma_m->vm_ops->set_policy(vma_m, new_pol); -+ if (err) -+ goto out; -+ } -+#endif -+ - } - - out: -@@ -1105,6 +1119,17 @@ static long do_mbind(unsigned long start, unsigned long len, - - if (end < start) - return -EINVAL; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) { -+ if (end > SEGMEXEC_TASK_SIZE) -+ return -EINVAL; -+ } else -+#endif -+ -+ if (end > TASK_SIZE) -+ return -EINVAL; -+ - if (end == start) - return 0; - -@@ -1328,8 +1353,7 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode, - */ - tcred = __task_cred(task); - if (cred->euid != tcred->suid && cred->euid != tcred->uid && -- cred->uid != tcred->suid && cred->uid != tcred->uid && -- !capable(CAP_SYS_NICE)) { -+ cred->uid != tcred->suid && !capable(CAP_SYS_NICE)) { - rcu_read_unlock(); - err = -EPERM; - goto out_put; -@@ -1360,6 +1384,15 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode, - goto out; - } - -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ if (mm != current->mm && -+ (mm->pax_flags & MF_PAX_RANDMMAP || mm->pax_flags & MF_PAX_SEGMEXEC)) { -+ mmput(mm); -+ err = -EPERM; -+ goto out; -+ } -+#endif -+ - err = do_migrate_pages(mm, old, new, - capable(CAP_SYS_NICE) ? MPOL_MF_MOVE_ALL : MPOL_MF_MOVE); - -diff --git a/mm/mlock.c b/mm/mlock.c -index ef726e8..13e0901 100644 ---- a/mm/mlock.c -+++ b/mm/mlock.c -@@ -13,6 +13,7 @@ - #include <linux/pagemap.h> - #include <linux/mempolicy.h> - #include <linux/syscalls.h> -+#include <linux/security.h> - #include <linux/sched.h> - #include <linux/export.h> - #include <linux/rmap.h> -@@ -385,6 +386,9 @@ static int do_mlock(unsigned long start, size_t len, int on) - return -EINVAL; - if (end == start) - return 0; -+ if (end > TASK_SIZE) -+ return -EINVAL; -+ - vma = find_vma(current->mm, start); - if (!vma || vma->vm_start > start) - return -ENOMEM; -@@ -396,6 +400,11 @@ static int do_mlock(unsigned long start, size_t len, int on) - for (nstart = start ; ; ) { - vm_flags_t newflags; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE)) -+ break; -+#endif -+ - /* Here we know that vma->vm_start <= nstart < vma->vm_end. */ - - newflags = vma->vm_flags | VM_LOCKED; -@@ -501,6 +510,7 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len) - lock_limit >>= PAGE_SHIFT; - - /* check against resource limits */ -+ gr_learn_resource(current, RLIMIT_MEMLOCK, (current->mm->locked_vm << PAGE_SHIFT) + len, 1); - if ((locked <= lock_limit) || capable(CAP_IPC_LOCK)) - error = do_mlock(start, len, 1); - up_write(&current->mm->mmap_sem); -@@ -524,17 +534,23 @@ SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len) - static int do_mlockall(int flags) - { - struct vm_area_struct * vma, * prev = NULL; -- unsigned int def_flags = 0; - - if (flags & MCL_FUTURE) -- def_flags = VM_LOCKED; -- current->mm->def_flags = def_flags; -+ current->mm->def_flags |= VM_LOCKED; -+ else -+ current->mm->def_flags &= ~VM_LOCKED; - if (flags == MCL_FUTURE) - goto out; - - for (vma = current->mm->mmap; vma ; vma = prev->vm_next) { - vm_flags_t newflags; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE)) -+ break; -+#endif -+ -+ BUG_ON(vma->vm_end > TASK_SIZE); - newflags = vma->vm_flags | VM_LOCKED; - if (!(flags & MCL_CURRENT)) - newflags &= ~VM_LOCKED; -@@ -567,6 +583,7 @@ SYSCALL_DEFINE1(mlockall, int, flags) - lock_limit >>= PAGE_SHIFT; - - ret = -ENOMEM; -+ gr_learn_resource(current, RLIMIT_MEMLOCK, current->mm->total_vm << PAGE_SHIFT, 1); - if (!(flags & MCL_CURRENT) || (current->mm->total_vm <= lock_limit) || - capable(CAP_IPC_LOCK)) - ret = do_mlockall(flags); -diff --git a/mm/mmap.c b/mm/mmap.c -index 848ef52..d2b586c 100644 ---- a/mm/mmap.c -+++ b/mm/mmap.c -@@ -46,6 +46,16 @@ - #define arch_rebalance_pgtables(addr, len) (addr) - #endif - -+static inline void verify_mm_writelocked(struct mm_struct *mm) -+{ -+#if defined(CONFIG_DEBUG_VM) || defined(CONFIG_PAX) -+ if (unlikely(down_read_trylock(&mm->mmap_sem))) { -+ up_read(&mm->mmap_sem); -+ BUG(); -+ } -+#endif -+} -+ - static void unmap_region(struct mm_struct *mm, - struct vm_area_struct *vma, struct vm_area_struct *prev, - unsigned long start, unsigned long end); -@@ -71,22 +81,32 @@ static void unmap_region(struct mm_struct *mm, - * x: (no) no x: (no) yes x: (no) yes x: (yes) yes - * - */ --pgprot_t protection_map[16] = { -+pgprot_t protection_map[16] __read_only = { - __P000, __P001, __P010, __P011, __P100, __P101, __P110, __P111, - __S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111 - }; - --pgprot_t vm_get_page_prot(unsigned long vm_flags) -+pgprot_t vm_get_page_prot(vm_flags_t vm_flags) - { -- return __pgprot(pgprot_val(protection_map[vm_flags & -+ pgprot_t prot = __pgprot(pgprot_val(protection_map[vm_flags & - (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]) | - pgprot_val(arch_vm_get_page_prot(vm_flags))); -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32) -+ if (!(__supported_pte_mask & _PAGE_NX) && -+ (vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC && -+ (vm_flags & (VM_READ | VM_WRITE))) -+ prot = __pgprot(pte_val(pte_exprotect(__pte(pgprot_val(prot))))); -+#endif -+ -+ return prot; - } - EXPORT_SYMBOL(vm_get_page_prot); - - int sysctl_overcommit_memory __read_mostly = OVERCOMMIT_GUESS; /* heuristic overcommit */ - int sysctl_overcommit_ratio __read_mostly = 50; /* default is 50% */ - int sysctl_max_map_count __read_mostly = DEFAULT_MAX_MAP_COUNT; -+unsigned long sysctl_heap_stack_gap __read_mostly = 64*1024; - /* - * Make sure vm_committed_as in one cacheline and not cacheline shared with - * other variables. It can be updated by several CPUs frequently. -@@ -228,6 +248,7 @@ static struct vm_area_struct *remove_vma(struct vm_area_struct *vma) - struct vm_area_struct *next = vma->vm_next; - - might_sleep(); -+ BUG_ON(vma->vm_mirror); - if (vma->vm_ops && vma->vm_ops->close) - vma->vm_ops->close(vma); - if (vma->vm_file) { -@@ -274,6 +295,7 @@ SYSCALL_DEFINE1(brk, unsigned long, brk) - * not page aligned -Ram Gupta - */ - rlim = rlimit(RLIMIT_DATA); -+ gr_learn_resource(current, RLIMIT_DATA, (brk - mm->start_brk) + (mm->end_data - mm->start_data), 1); - if (rlim < RLIM_INFINITY && (brk - mm->start_brk) + - (mm->end_data - mm->start_data) > rlim) - goto out; -@@ -690,6 +712,12 @@ static int - can_vma_merge_before(struct vm_area_struct *vma, unsigned long vm_flags, - struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff) - { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_start == SEGMEXEC_TASK_SIZE) -+ return 0; -+#endif -+ - if (is_mergeable_vma(vma, file, vm_flags) && - is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) { - if (vma->vm_pgoff == vm_pgoff) -@@ -709,6 +737,12 @@ static int - can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags, - struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff) - { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end == SEGMEXEC_TASK_SIZE) -+ return 0; -+#endif -+ - if (is_mergeable_vma(vma, file, vm_flags) && - is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) { - pgoff_t vm_pglen; -@@ -751,13 +785,20 @@ can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags, - struct vm_area_struct *vma_merge(struct mm_struct *mm, - struct vm_area_struct *prev, unsigned long addr, - unsigned long end, unsigned long vm_flags, -- struct anon_vma *anon_vma, struct file *file, -+ struct anon_vma *anon_vma, struct file *file, - pgoff_t pgoff, struct mempolicy *policy) - { - pgoff_t pglen = (end - addr) >> PAGE_SHIFT; - struct vm_area_struct *area, *next; - int err; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE, end_m = end + SEGMEXEC_TASK_SIZE; -+ struct vm_area_struct *area_m = NULL, *next_m = NULL, *prev_m = NULL; -+ -+ BUG_ON((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE < end); -+#endif -+ - /* - * We later require that vma->vm_flags == vm_flags, - * so this tests vma->vm_flags & VM_SPECIAL, too. -@@ -773,6 +814,15 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm, - if (next && next->vm_end == end) /* cases 6, 7, 8 */ - next = next->vm_next; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (prev) -+ prev_m = pax_find_mirror_vma(prev); -+ if (area) -+ area_m = pax_find_mirror_vma(area); -+ if (next) -+ next_m = pax_find_mirror_vma(next); -+#endif -+ - /* - * Can it merge with the predecessor? - */ -@@ -792,9 +842,24 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm, - /* cases 1, 6 */ - err = vma_adjust(prev, prev->vm_start, - next->vm_end, prev->vm_pgoff, NULL); -- } else /* cases 2, 5, 7 */ -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (!err && prev_m) -+ err = vma_adjust(prev_m, prev_m->vm_start, -+ next_m->vm_end, prev_m->vm_pgoff, NULL); -+#endif -+ -+ } else { /* cases 2, 5, 7 */ - err = vma_adjust(prev, prev->vm_start, - end, prev->vm_pgoff, NULL); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (!err && prev_m) -+ err = vma_adjust(prev_m, prev_m->vm_start, -+ end_m, prev_m->vm_pgoff, NULL); -+#endif -+ -+ } - if (err) - return NULL; - khugepaged_enter_vma_merge(prev); -@@ -808,12 +873,27 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm, - mpol_equal(policy, vma_policy(next)) && - can_vma_merge_before(next, vm_flags, - anon_vma, file, pgoff+pglen)) { -- if (prev && addr < prev->vm_end) /* case 4 */ -+ if (prev && addr < prev->vm_end) { /* case 4 */ - err = vma_adjust(prev, prev->vm_start, - addr, prev->vm_pgoff, NULL); -- else /* cases 3, 8 */ -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (!err && prev_m) -+ err = vma_adjust(prev_m, prev_m->vm_start, -+ addr_m, prev_m->vm_pgoff, NULL); -+#endif -+ -+ } else { /* cases 3, 8 */ - err = vma_adjust(area, addr, next->vm_end, - next->vm_pgoff - pglen, NULL); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (!err && area_m) -+ err = vma_adjust(area_m, addr_m, next_m->vm_end, -+ next_m->vm_pgoff - pglen, NULL); -+#endif -+ -+ } - if (err) - return NULL; - khugepaged_enter_vma_merge(area); -@@ -922,14 +1002,11 @@ none: - void vm_stat_account(struct mm_struct *mm, unsigned long flags, - struct file *file, long pages) - { -- const unsigned long stack_flags -- = VM_STACK_FLAGS & (VM_GROWSUP|VM_GROWSDOWN); -- - if (file) { - mm->shared_vm += pages; - if ((flags & (VM_EXEC|VM_WRITE)) == VM_EXEC) - mm->exec_vm += pages; -- } else if (flags & stack_flags) -+ } else if (flags & (VM_GROWSUP|VM_GROWSDOWN)) - mm->stack_vm += pages; - if (flags & (VM_RESERVED|VM_IO)) - mm->reserved_vm += pages; -@@ -969,7 +1046,7 @@ static unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, - * (the exception is when the underlying filesystem is noexec - * mounted, in which case we dont add PROT_EXEC.) - */ -- if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC)) -+ if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC)) - if (!(file && (file->f_path.mnt->mnt_flags & MNT_NOEXEC))) - prot |= PROT_EXEC; - -@@ -995,7 +1072,7 @@ static unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, - /* Obtain the address to map to. we verify (or select) it and ensure - * that it represents a valid section of the address space. - */ -- addr = get_unmapped_area(file, addr, len, pgoff, flags); -+ addr = get_unmapped_area(file, addr, len, pgoff, flags | ((prot & PROT_EXEC) ? MAP_EXECUTABLE : 0)); - if (addr & ~PAGE_MASK) - return addr; - -@@ -1006,6 +1083,36 @@ static unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, - vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) | - mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC; - -+#ifdef CONFIG_PAX_MPROTECT -+ if (mm->pax_flags & MF_PAX_MPROTECT) { -+#ifndef CONFIG_PAX_MPROTECT_COMPAT -+ if ((vm_flags & (VM_WRITE | VM_EXEC)) == (VM_WRITE | VM_EXEC)) { -+ gr_log_rwxmmap(file); -+ -+#ifdef CONFIG_PAX_EMUPLT -+ vm_flags &= ~VM_EXEC; -+#else -+ return -EPERM; -+#endif -+ -+ } -+ -+ if (!(vm_flags & VM_EXEC)) -+ vm_flags &= ~VM_MAYEXEC; -+#else -+ if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC) -+ vm_flags &= ~(VM_EXEC | VM_MAYEXEC); -+#endif -+ else -+ vm_flags &= ~VM_MAYWRITE; -+ } -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32) -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && file) -+ vm_flags &= ~VM_PAGEEXEC; -+#endif -+ - if (flags & MAP_LOCKED) - if (!can_do_mlock()) - return -EPERM; -@@ -1017,6 +1124,7 @@ static unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, - locked += mm->locked_vm; - lock_limit = rlimit(RLIMIT_MEMLOCK); - lock_limit >>= PAGE_SHIFT; -+ gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1); - if (locked > lock_limit && !capable(CAP_IPC_LOCK)) - return -EAGAIN; - } -@@ -1087,6 +1195,9 @@ static unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, - if (error) - return error; - -+ if (!gr_acl_handle_mmap(file, prot)) -+ return -EACCES; -+ - return mmap_region(file, addr, len, flags, vm_flags, pgoff); - } - -@@ -1192,7 +1303,7 @@ int vma_wants_writenotify(struct vm_area_struct *vma) - vm_flags_t vm_flags = vma->vm_flags; - - /* If it was private or non-writable, the write bit is already clear */ -- if ((vm_flags & (VM_WRITE|VM_SHARED)) != ((VM_WRITE|VM_SHARED))) -+ if ((vm_flags & (VM_WRITE|VM_SHARED)) != (VM_WRITE|VM_SHARED)) - return 0; - - /* The backer wishes to know when pages are first written to? */ -@@ -1241,14 +1352,24 @@ unsigned long mmap_region(struct file *file, unsigned long addr, - unsigned long charged = 0; - struct inode *inode = file ? file->f_path.dentry->d_inode : NULL; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m = NULL; -+#endif -+ -+ /* -+ * mm->mmap_sem is required to protect against another thread -+ * changing the mappings in case we sleep. -+ */ -+ verify_mm_writelocked(mm); -+ - /* Clear old maps */ - error = -ENOMEM; --munmap_back: - vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent); - if (vma && vma->vm_start < addr + len) { - if (do_munmap(mm, addr, len)) - return -ENOMEM; -- goto munmap_back; -+ vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent); -+ BUG_ON(vma && vma->vm_start < addr + len); - } - - /* Check against address space limit. */ -@@ -1297,6 +1418,16 @@ munmap_back: - goto unacct_error; - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vm_flags & VM_EXEC)) { -+ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); -+ if (!vma_m) { -+ error = -ENOMEM; -+ goto free_vma; -+ } -+ } -+#endif -+ - vma->vm_mm = mm; - vma->vm_start = addr; - vma->vm_end = addr + len; -@@ -1321,6 +1452,19 @@ munmap_back: - error = file->f_op->mmap(file, vma); - if (error) - goto unmap_and_free_vma; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma_m && (vm_flags & VM_EXECUTABLE)) -+ added_exe_file_vma(mm); -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32) -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && !(vma->vm_flags & VM_SPECIAL)) { -+ vma->vm_flags |= VM_PAGEEXEC; -+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); -+ } -+#endif -+ - if (vm_flags & VM_EXECUTABLE) - added_exe_file_vma(mm); - -@@ -1358,6 +1502,11 @@ munmap_back: - vma_link(mm, vma, prev, rb_link, rb_parent); - file = vma->vm_file; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma_m) -+ BUG_ON(pax_mirror_vma(vma_m, vma)); -+#endif -+ - /* Once vma denies write, undo our temporary denial count */ - if (correct_wcount) - atomic_inc(&inode->i_writecount); -@@ -1366,6 +1515,7 @@ out: - - mm->total_vm += len >> PAGE_SHIFT; - vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT); -+ track_exec_limit(mm, addr, addr + len, vm_flags); - if (vm_flags & VM_LOCKED) { - if (!mlock_vma_pages_range(vma, addr, addr + len)) - mm->locked_vm += (len >> PAGE_SHIFT); -@@ -1383,6 +1533,12 @@ unmap_and_free_vma: - unmap_region(mm, vma, prev, vma->vm_start, vma->vm_end); - charged = 0; - free_vma: -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma_m) -+ kmem_cache_free(vm_area_cachep, vma_m); -+#endif -+ - kmem_cache_free(vm_area_cachep, vma); - unacct_error: - if (charged) -@@ -1390,6 +1546,44 @@ unacct_error: - return error; - } - -+bool check_heap_stack_gap(const struct vm_area_struct *vma, unsigned long addr, unsigned long len) -+{ -+ if (!vma) { -+#ifdef CONFIG_STACK_GROWSUP -+ if (addr > sysctl_heap_stack_gap) -+ vma = find_vma(current->mm, addr - sysctl_heap_stack_gap); -+ else -+ vma = find_vma(current->mm, 0); -+ if (vma && (vma->vm_flags & VM_GROWSUP)) -+ return false; -+#endif -+ return true; -+ } -+ -+ if (addr + len > vma->vm_start) -+ return false; -+ -+ if (vma->vm_flags & VM_GROWSDOWN) -+ return sysctl_heap_stack_gap <= vma->vm_start - addr - len; -+#ifdef CONFIG_STACK_GROWSUP -+ else if (vma->vm_prev && (vma->vm_prev->vm_flags & VM_GROWSUP)) -+ return addr - vma->vm_prev->vm_end <= sysctl_heap_stack_gap; -+#endif -+ -+ return true; -+} -+ -+unsigned long skip_heap_stack_gap(const struct vm_area_struct *vma, unsigned long len) -+{ -+ if (vma->vm_start < len) -+ return -ENOMEM; -+ if (!(vma->vm_flags & VM_GROWSDOWN)) -+ return vma->vm_start - len; -+ if (sysctl_heap_stack_gap <= vma->vm_start - len) -+ return vma->vm_start - len - sysctl_heap_stack_gap; -+ return -ENOMEM; -+} -+ - /* Get an address range which is currently unmapped. - * For shmat() with addr=0. - * -@@ -1416,18 +1610,23 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, - if (flags & MAP_FIXED) - return addr; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - addr = PAGE_ALIGN(addr); -- vma = find_vma(mm, addr); -- if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -- return addr; -+ if (TASK_SIZE - len >= addr) { -+ vma = find_vma(mm, addr); -+ if (check_heap_stack_gap(vma, addr, len)) -+ return addr; -+ } - } - if (len > mm->cached_hole_size) { -- start_addr = addr = mm->free_area_cache; -+ start_addr = addr = mm->free_area_cache; - } else { -- start_addr = addr = TASK_UNMAPPED_BASE; -- mm->cached_hole_size = 0; -+ start_addr = addr = mm->mmap_base; -+ mm->cached_hole_size = 0; - } - - full_search: -@@ -1438,34 +1637,40 @@ full_search: - * Start a new search - just in case we missed - * some holes. - */ -- if (start_addr != TASK_UNMAPPED_BASE) { -- addr = TASK_UNMAPPED_BASE; -- start_addr = addr; -+ if (start_addr != mm->mmap_base) { -+ start_addr = addr = mm->mmap_base; - mm->cached_hole_size = 0; - goto full_search; - } - return -ENOMEM; - } -- if (!vma || addr + len <= vma->vm_start) { -- /* -- * Remember the place where we stopped the search: -- */ -- mm->free_area_cache = addr + len; -- return addr; -- } -+ if (check_heap_stack_gap(vma, addr, len)) -+ break; - if (addr + mm->cached_hole_size < vma->vm_start) - mm->cached_hole_size = vma->vm_start - addr; - addr = vma->vm_end; - } -+ -+ /* -+ * Remember the place where we stopped the search: -+ */ -+ mm->free_area_cache = addr + len; -+ return addr; - } - #endif - - void arch_unmap_area(struct mm_struct *mm, unsigned long addr) - { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE <= addr) -+ return; -+#endif -+ - /* - * Is this a new hole at the lowest possible address? - */ -- if (addr >= TASK_UNMAPPED_BASE && addr < mm->free_area_cache) -+ if (addr >= mm->mmap_base && addr < mm->free_area_cache) - mm->free_area_cache = addr; - } - -@@ -1481,7 +1686,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - { - struct vm_area_struct *vma; - struct mm_struct *mm = current->mm; -- unsigned long addr = addr0, start_addr; -+ unsigned long base = mm->mmap_base, addr = addr0, start_addr; - - /* requested length too big for entire address space */ - if (len > TASK_SIZE) -@@ -1490,13 +1695,18 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - if (flags & MAP_FIXED) - return addr; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - /* requesting a specific address */ - if (addr) { - addr = PAGE_ALIGN(addr); -- vma = find_vma(mm, addr); -- if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -- return addr; -+ if (TASK_SIZE - len >= addr) { -+ vma = find_vma(mm, addr); -+ if (check_heap_stack_gap(vma, addr, len)) -+ return addr; -+ } - } - - /* check if free_area_cache is useful for us */ -@@ -1520,7 +1730,7 @@ try_again: - * return with success: - */ - vma = find_vma(mm, addr); -- if (!vma || addr+len <= vma->vm_start) -+ if (check_heap_stack_gap(vma, addr, len)) - /* remember the address as a hint for next time */ - return (mm->free_area_cache = addr); - -@@ -1529,8 +1739,8 @@ try_again: - mm->cached_hole_size = vma->vm_start - addr; - - /* try just below the current vma->vm_start */ -- addr = vma->vm_start-len; -- } while (len < vma->vm_start); -+ addr = skip_heap_stack_gap(vma, len); -+ } while (!IS_ERR_VALUE(addr)); - - fail: - /* -@@ -1553,13 +1763,21 @@ fail: - * can happen with large stack limits and large mmap() - * allocations. - */ -+ mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ -+ mm->free_area_cache = mm->mmap_base; - mm->cached_hole_size = ~0UL; -- mm->free_area_cache = TASK_UNMAPPED_BASE; - addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags); - /* - * Restore the topdown base: - */ -- mm->free_area_cache = mm->mmap_base; -+ mm->mmap_base = base; -+ mm->free_area_cache = base; - mm->cached_hole_size = ~0UL; - - return addr; -@@ -1568,6 +1786,12 @@ fail: - - void arch_unmap_area_topdown(struct mm_struct *mm, unsigned long addr) - { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE <= addr) -+ return; -+#endif -+ - /* - * Is this a new hole at the highest possible address? - */ -@@ -1575,8 +1799,10 @@ void arch_unmap_area_topdown(struct mm_struct *mm, unsigned long addr) - mm->free_area_cache = addr; - - /* dont allow allocations above current base */ -- if (mm->free_area_cache > mm->mmap_base) -+ if (mm->free_area_cache > mm->mmap_base) { - mm->free_area_cache = mm->mmap_base; -+ mm->cached_hole_size = ~0UL; -+ } - } - - unsigned long -@@ -1672,6 +1898,28 @@ find_vma_prev(struct mm_struct *mm, unsigned long addr, - return vma; - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma) -+{ -+ struct vm_area_struct *vma_m; -+ -+ BUG_ON(!vma || vma->vm_start >= vma->vm_end); -+ if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC)) { -+ BUG_ON(vma->vm_mirror); -+ return NULL; -+ } -+ BUG_ON(vma->vm_start < SEGMEXEC_TASK_SIZE && SEGMEXEC_TASK_SIZE < vma->vm_end); -+ vma_m = vma->vm_mirror; -+ BUG_ON(!vma_m || vma_m->vm_mirror != vma); -+ BUG_ON(vma->vm_file != vma_m->vm_file); -+ BUG_ON(vma->vm_end - vma->vm_start != vma_m->vm_end - vma_m->vm_start); -+ BUG_ON(vma->vm_pgoff != vma_m->vm_pgoff); -+ BUG_ON(vma->anon_vma != vma_m->anon_vma && vma->anon_vma->root != vma_m->anon_vma->root); -+ BUG_ON((vma->vm_flags ^ vma_m->vm_flags) & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED | VM_RESERVED)); -+ return vma_m; -+} -+#endif -+ - /* - * Verify that the stack growth is acceptable and - * update accounting. This is shared with both the -@@ -1688,6 +1936,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns - return -ENOMEM; - - /* Stack limit test */ -+ gr_learn_resource(current, RLIMIT_STACK, size, 1); - if (size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur)) - return -ENOMEM; - -@@ -1698,6 +1947,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns - locked = mm->locked_vm + grow; - limit = ACCESS_ONCE(rlim[RLIMIT_MEMLOCK].rlim_cur); - limit >>= PAGE_SHIFT; -+ gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1); - if (locked > limit && !capable(CAP_IPC_LOCK)) - return -ENOMEM; - } -@@ -1728,37 +1978,48 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns - * PA-RISC uses this for its stack; IA64 for its Register Backing Store. - * vma is the last one with address > vma->vm_end. Have to extend vma. - */ -+#ifndef CONFIG_IA64 -+static -+#endif - int expand_upwards(struct vm_area_struct *vma, unsigned long address) - { - int error; -+ bool locknext; - - if (!(vma->vm_flags & VM_GROWSUP)) - return -EFAULT; - -+ /* Also guard against wrapping around to address 0. */ -+ if (address < PAGE_ALIGN(address+1)) -+ address = PAGE_ALIGN(address+1); -+ else -+ return -ENOMEM; -+ - /* - * We must make sure the anon_vma is allocated - * so that the anon_vma locking is not a noop. - */ - if (unlikely(anon_vma_prepare(vma))) - return -ENOMEM; -+ locknext = vma->vm_next && (vma->vm_next->vm_flags & VM_GROWSDOWN); -+ if (locknext && anon_vma_prepare(vma->vm_next)) -+ return -ENOMEM; - vma_lock_anon_vma(vma); -+ if (locknext) -+ vma_lock_anon_vma(vma->vm_next); - - /* - * vma->vm_start/vm_end cannot change under us because the caller - * is required to hold the mmap_sem in read mode. We need the -- * anon_vma lock to serialize against concurrent expand_stacks. -- * Also guard against wrapping around to address 0. -+ * anon_vma locks to serialize against concurrent expand_stacks -+ * and expand_upwards. - */ -- if (address < PAGE_ALIGN(address+4)) -- address = PAGE_ALIGN(address+4); -- else { -- vma_unlock_anon_vma(vma); -- return -ENOMEM; -- } - error = 0; - - /* Somebody else might have raced and expanded it already */ -- if (address > vma->vm_end) { -+ if (vma->vm_next && (vma->vm_next->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)) && vma->vm_next->vm_start - address < sysctl_heap_stack_gap) -+ error = -ENOMEM; -+ else if (address > vma->vm_end && (!locknext || vma->vm_next->vm_start >= address)) { - unsigned long size, grow; - - size = address - vma->vm_start; -@@ -1773,6 +2034,8 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address) - } - } - } -+ if (locknext) -+ vma_unlock_anon_vma(vma->vm_next); - vma_unlock_anon_vma(vma); - khugepaged_enter_vma_merge(vma); - return error; -@@ -1786,6 +2049,8 @@ int expand_downwards(struct vm_area_struct *vma, - unsigned long address) - { - int error; -+ bool lockprev = false; -+ struct vm_area_struct *prev; - - /* - * We must make sure the anon_vma is allocated -@@ -1799,6 +2064,15 @@ int expand_downwards(struct vm_area_struct *vma, - if (error) - return error; - -+ prev = vma->vm_prev; -+#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64) -+ lockprev = prev && (prev->vm_flags & VM_GROWSUP); -+#endif -+ if (lockprev && anon_vma_prepare(prev)) -+ return -ENOMEM; -+ if (lockprev) -+ vma_lock_anon_vma(prev); -+ - vma_lock_anon_vma(vma); - - /* -@@ -1808,9 +2082,17 @@ int expand_downwards(struct vm_area_struct *vma, - */ - - /* Somebody else might have raced and expanded it already */ -- if (address < vma->vm_start) { -+ if (prev && (prev->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)) && address - prev->vm_end < sysctl_heap_stack_gap) -+ error = -ENOMEM; -+ else if (address < vma->vm_start && (!lockprev || prev->vm_end <= address)) { - unsigned long size, grow; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m; -+ -+ vma_m = pax_find_mirror_vma(vma); -+#endif -+ - size = vma->vm_end - address; - grow = (vma->vm_start - address) >> PAGE_SHIFT; - -@@ -1820,11 +2102,22 @@ int expand_downwards(struct vm_area_struct *vma, - if (!error) { - vma->vm_start = address; - vma->vm_pgoff -= grow; -+ track_exec_limit(vma->vm_mm, vma->vm_start, vma->vm_end, vma->vm_flags); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma_m) { -+ vma_m->vm_start -= grow << PAGE_SHIFT; -+ vma_m->vm_pgoff -= grow; -+ } -+#endif -+ - perf_event_mmap(vma); - } - } - } - vma_unlock_anon_vma(vma); -+ if (lockprev) -+ vma_unlock_anon_vma(prev); - khugepaged_enter_vma_merge(vma); - return error; - } -@@ -1894,6 +2187,13 @@ static void remove_vma_list(struct mm_struct *mm, struct vm_area_struct *vma) - do { - long nrpages = vma_pages(vma); - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE)) { -+ vma = remove_vma(vma); -+ continue; -+ } -+#endif -+ - mm->total_vm -= nrpages; - vm_stat_account(mm, vma->vm_flags, vma->vm_file, -nrpages); - vma = remove_vma(vma); -@@ -1939,6 +2239,16 @@ detach_vmas_to_be_unmapped(struct mm_struct *mm, struct vm_area_struct *vma, - insertion_point = (prev ? &prev->vm_next : &mm->mmap); - vma->vm_prev = NULL; - do { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma->vm_mirror) { -+ BUG_ON(!vma->vm_mirror->vm_mirror || vma->vm_mirror->vm_mirror != vma); -+ vma->vm_mirror->vm_mirror = NULL; -+ vma->vm_mirror->vm_flags &= ~VM_EXEC; -+ vma->vm_mirror = NULL; -+ } -+#endif -+ - rb_erase(&vma->vm_rb, &mm->mm_rb); - mm->map_count--; - tail_vma = vma; -@@ -1967,14 +2277,33 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma, - struct vm_area_struct *new; - int err = -ENOMEM; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m, *new_m = NULL; -+ unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE; -+#endif -+ - if (is_vm_hugetlb_page(vma) && (addr & - ~(huge_page_mask(hstate_vma(vma))))) - return -EINVAL; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ vma_m = pax_find_mirror_vma(vma); -+#endif -+ - new = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL); - if (!new) - goto out_err; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma_m) { -+ new_m = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL); -+ if (!new_m) { -+ kmem_cache_free(vm_area_cachep, new); -+ goto out_err; -+ } -+ } -+#endif -+ - /* most fields are the same, copy all, and then fixup */ - *new = *vma; - -@@ -1987,6 +2316,22 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma, - new->vm_pgoff += ((addr - vma->vm_start) >> PAGE_SHIFT); - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma_m) { -+ *new_m = *vma_m; -+ INIT_LIST_HEAD(&new_m->anon_vma_chain); -+ new_m->vm_mirror = new; -+ new->vm_mirror = new_m; -+ -+ if (new_below) -+ new_m->vm_end = addr_m; -+ else { -+ new_m->vm_start = addr_m; -+ new_m->vm_pgoff += ((addr_m - vma_m->vm_start) >> PAGE_SHIFT); -+ } -+ } -+#endif -+ - pol = mpol_dup(vma_policy(vma)); - if (IS_ERR(pol)) { - err = PTR_ERR(pol); -@@ -2012,6 +2357,42 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma, - else - err = vma_adjust(vma, vma->vm_start, addr, vma->vm_pgoff, new); - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (!err && vma_m) { -+ if (anon_vma_clone(new_m, vma_m)) -+ goto out_free_mpol; -+ -+ mpol_get(pol); -+ vma_set_policy(new_m, pol); -+ -+ if (new_m->vm_file) { -+ get_file(new_m->vm_file); -+ if (vma_m->vm_flags & VM_EXECUTABLE) -+ added_exe_file_vma(mm); -+ } -+ -+ if (new_m->vm_ops && new_m->vm_ops->open) -+ new_m->vm_ops->open(new_m); -+ -+ if (new_below) -+ err = vma_adjust(vma_m, addr_m, vma_m->vm_end, vma_m->vm_pgoff + -+ ((addr_m - new_m->vm_start) >> PAGE_SHIFT), new_m); -+ else -+ err = vma_adjust(vma_m, vma_m->vm_start, addr_m, vma_m->vm_pgoff, new_m); -+ -+ if (err) { -+ if (new_m->vm_ops && new_m->vm_ops->close) -+ new_m->vm_ops->close(new_m); -+ if (new_m->vm_file) { -+ if (vma_m->vm_flags & VM_EXECUTABLE) -+ removed_exe_file_vma(mm); -+ fput(new_m->vm_file); -+ } -+ mpol_put(pol); -+ } -+ } -+#endif -+ - /* Success. */ - if (!err) - return 0; -@@ -2024,10 +2405,18 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma, - removed_exe_file_vma(mm); - fput(new->vm_file); - } -- unlink_anon_vmas(new); - out_free_mpol: - mpol_put(pol); - out_free_vma: -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (new_m) { -+ unlink_anon_vmas(new_m); -+ kmem_cache_free(vm_area_cachep, new_m); -+ } -+#endif -+ -+ unlink_anon_vmas(new); - kmem_cache_free(vm_area_cachep, new); - out_err: - return err; -@@ -2040,6 +2429,15 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma, - int split_vma(struct mm_struct *mm, struct vm_area_struct *vma, - unsigned long addr, int new_below) - { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) { -+ BUG_ON(vma->vm_end > SEGMEXEC_TASK_SIZE); -+ if (mm->map_count >= sysctl_max_map_count-1) -+ return -ENOMEM; -+ } else -+#endif -+ - if (mm->map_count >= sysctl_max_map_count) - return -ENOMEM; - -@@ -2051,11 +2449,30 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma, - * work. This now handles partial unmappings. - * Jeremy Fitzhardinge <jeremy(a)goop.org> - */ -+#ifdef CONFIG_PAX_SEGMEXEC - int do_munmap(struct mm_struct *mm, unsigned long start, size_t len) - { -+ int ret = __do_munmap(mm, start, len); -+ if (ret || !(mm->pax_flags & MF_PAX_SEGMEXEC)) -+ return ret; -+ -+ return __do_munmap(mm, start + SEGMEXEC_TASK_SIZE, len); -+} -+ -+int __do_munmap(struct mm_struct *mm, unsigned long start, size_t len) -+#else -+int do_munmap(struct mm_struct *mm, unsigned long start, size_t len) -+#endif -+{ - unsigned long end; - struct vm_area_struct *vma, *prev, *last; - -+ /* -+ * mm->mmap_sem is required to protect against another thread -+ * changing the mappings in case we sleep. -+ */ -+ verify_mm_writelocked(mm); -+ - if ((start & ~PAGE_MASK) || start > TASK_SIZE || len > TASK_SIZE-start) - return -EINVAL; - -@@ -2130,6 +2547,8 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len) - /* Fix up all other VM information */ - remove_vma_list(mm, vma); - -+ track_exec_limit(mm, start, end, 0UL); -+ - return 0; - } - EXPORT_SYMBOL(do_munmap); -@@ -2139,6 +2558,13 @@ int vm_munmap(unsigned long start, size_t len) - int ret; - struct mm_struct *mm = current->mm; - -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && -+ (len > SEGMEXEC_TASK_SIZE || start > SEGMEXEC_TASK_SIZE-len)) -+ return -EINVAL; -+#endif -+ - down_write(&mm->mmap_sem); - ret = do_munmap(mm, start, len); - up_write(&mm->mmap_sem); -@@ -2152,16 +2578,6 @@ SYSCALL_DEFINE2(munmap, unsigned long, addr, size_t, len) - return vm_munmap(addr, len); - } - --static inline void verify_mm_writelocked(struct mm_struct *mm) --{ --#ifdef CONFIG_DEBUG_VM -- if (unlikely(down_read_trylock(&mm->mmap_sem))) { -- WARN_ON(1); -- up_read(&mm->mmap_sem); -- } --#endif --} -- - /* - * this is really a simplified "do_mmap". it only handles - * anonymous maps. eventually we may be able to do some -@@ -2175,6 +2591,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len) - struct rb_node ** rb_link, * rb_parent; - pgoff_t pgoff = addr >> PAGE_SHIFT; - int error; -+ unsigned long charged; - - len = PAGE_ALIGN(len); - if (!len) -@@ -2186,16 +2603,30 @@ static unsigned long do_brk(unsigned long addr, unsigned long len) - - flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags; - -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { -+ flags &= ~VM_EXEC; -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (mm->pax_flags & MF_PAX_MPROTECT) -+ flags &= ~VM_MAYEXEC; -+#endif -+ -+ } -+#endif -+ - error = get_unmapped_area(NULL, addr, len, 0, MAP_FIXED); - if (error & ~PAGE_MASK) - return error; - -+ charged = len >> PAGE_SHIFT; -+ - /* - * mlock MCL_FUTURE? - */ - if (mm->def_flags & VM_LOCKED) { - unsigned long locked, lock_limit; -- locked = len >> PAGE_SHIFT; -+ locked = charged; - locked += mm->locked_vm; - lock_limit = rlimit(RLIMIT_MEMLOCK); - lock_limit >>= PAGE_SHIFT; -@@ -2212,22 +2643,22 @@ static unsigned long do_brk(unsigned long addr, unsigned long len) - /* - * Clear old maps. this also does some error checking for us - */ -- munmap_back: - vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent); - if (vma && vma->vm_start < addr + len) { - if (do_munmap(mm, addr, len)) - return -ENOMEM; -- goto munmap_back; -- } -+ vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent); -+ BUG_ON(vma && vma->vm_start < addr + len); -+ } - - /* Check against address space limits *after* clearing old maps... */ -- if (!may_expand_vm(mm, len >> PAGE_SHIFT)) -+ if (!may_expand_vm(mm, charged)) - return -ENOMEM; - - if (mm->map_count > sysctl_max_map_count) - return -ENOMEM; - -- if (security_vm_enough_memory_mm(mm, len >> PAGE_SHIFT)) -+ if (security_vm_enough_memory_mm(mm, charged)) - return -ENOMEM; - - /* Can we just expand an old private anonymous mapping? */ -@@ -2241,7 +2672,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len) - */ - vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); - if (!vma) { -- vm_unacct_memory(len >> PAGE_SHIFT); -+ vm_unacct_memory(charged); - return -ENOMEM; - } - -@@ -2255,11 +2686,12 @@ static unsigned long do_brk(unsigned long addr, unsigned long len) - vma_link(mm, vma, prev, rb_link, rb_parent); - out: - perf_event_mmap(vma); -- mm->total_vm += len >> PAGE_SHIFT; -+ mm->total_vm += charged; - if (flags & VM_LOCKED) { - if (!mlock_vma_pages_range(vma, addr, addr + len)) -- mm->locked_vm += (len >> PAGE_SHIFT); -+ mm->locked_vm += charged; - } -+ track_exec_limit(mm, addr, addr + len, flags); - return addr; - } - -@@ -2315,8 +2747,10 @@ void exit_mmap(struct mm_struct *mm) - * Walk the list again, actually closing and freeing it, - * with preemption enabled, without holding any MM locks. - */ -- while (vma) -+ while (vma) { -+ vma->vm_mirror = NULL; - vma = remove_vma(vma); -+ } - - BUG_ON(mm->nr_ptes > (FIRST_USER_ADDRESS+PMD_SIZE-1)>>PMD_SHIFT); - } -@@ -2330,6 +2764,13 @@ int insert_vm_struct(struct mm_struct * mm, struct vm_area_struct * vma) - struct vm_area_struct * __vma, * prev; - struct rb_node ** rb_link, * rb_parent; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m = NULL; -+#endif -+ -+ if (security_file_mmap(NULL, 0, 0, 0, vma->vm_start, 1)) -+ return -EPERM; -+ - /* - * The vm_pgoff of a purely anonymous vma should be irrelevant - * until its first write fault, when page's anon_vma and index -@@ -2352,7 +2793,22 @@ int insert_vm_struct(struct mm_struct * mm, struct vm_area_struct * vma) - if ((vma->vm_flags & VM_ACCOUNT) && - security_vm_enough_memory_mm(mm, vma_pages(vma))) - return -ENOMEM; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_EXEC)) { -+ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); -+ if (!vma_m) -+ return -ENOMEM; -+ } -+#endif -+ - vma_link(mm, vma, prev, rb_link, rb_parent); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma_m) -+ BUG_ON(pax_mirror_vma(vma_m, vma)); -+#endif -+ - return 0; - } - -@@ -2371,6 +2827,8 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap, - struct mempolicy *pol; - bool faulted_in_anon_vma = true; - -+ BUG_ON(vma->vm_mirror); -+ - /* - * If anonymous vma has not yet been faulted, update new pgoff - * to match new location, to increase its chance of merging. -@@ -2438,6 +2896,39 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap, - return NULL; - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+long pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma) -+{ -+ struct vm_area_struct *prev_m; -+ struct rb_node **rb_link_m, *rb_parent_m; -+ struct mempolicy *pol_m; -+ -+ BUG_ON(!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC)); -+ BUG_ON(vma->vm_mirror || vma_m->vm_mirror); -+ BUG_ON(!mpol_equal(vma_policy(vma), vma_policy(vma_m))); -+ *vma_m = *vma; -+ INIT_LIST_HEAD(&vma_m->anon_vma_chain); -+ if (anon_vma_clone(vma_m, vma)) -+ return -ENOMEM; -+ pol_m = vma_policy(vma_m); -+ mpol_get(pol_m); -+ vma_set_policy(vma_m, pol_m); -+ vma_m->vm_start += SEGMEXEC_TASK_SIZE; -+ vma_m->vm_end += SEGMEXEC_TASK_SIZE; -+ vma_m->vm_flags &= ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED); -+ vma_m->vm_page_prot = vm_get_page_prot(vma_m->vm_flags); -+ if (vma_m->vm_file) -+ get_file(vma_m->vm_file); -+ if (vma_m->vm_ops && vma_m->vm_ops->open) -+ vma_m->vm_ops->open(vma_m); -+ find_vma_prepare(vma->vm_mm, vma_m->vm_start, &prev_m, &rb_link_m, &rb_parent_m); -+ vma_link(vma->vm_mm, vma_m, prev_m, rb_link_m, rb_parent_m); -+ vma_m->vm_mirror = vma; -+ vma->vm_mirror = vma_m; -+ return 0; -+} -+#endif -+ - /* - * Return true if the calling process may expand its vm space by the passed - * number of pages -@@ -2449,6 +2940,12 @@ int may_expand_vm(struct mm_struct *mm, unsigned long npages) - - lim = rlimit(RLIMIT_AS) >> PAGE_SHIFT; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ cur -= mm->brk_gap; -+#endif -+ -+ gr_learn_resource(current, RLIMIT_AS, (cur + npages) << PAGE_SHIFT, 1); - if (cur + npages > lim) - return 0; - return 1; -@@ -2519,6 +3016,22 @@ int install_special_mapping(struct mm_struct *mm, - vma->vm_start = addr; - vma->vm_end = addr + len; - -+#ifdef CONFIG_PAX_MPROTECT -+ if (mm->pax_flags & MF_PAX_MPROTECT) { -+#ifndef CONFIG_PAX_MPROTECT_COMPAT -+ if ((vm_flags & (VM_WRITE | VM_EXEC)) == (VM_WRITE | VM_EXEC)) -+ return -EPERM; -+ if (!(vm_flags & VM_EXEC)) -+ vm_flags &= ~VM_MAYEXEC; -+#else -+ if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC) -+ vm_flags &= ~(VM_EXEC | VM_MAYEXEC); -+#endif -+ else -+ vm_flags &= ~VM_MAYWRITE; -+ } -+#endif -+ - vma->vm_flags = vm_flags | mm->def_flags | VM_DONTEXPAND; - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); - -diff --git a/mm/mprotect.c b/mm/mprotect.c -index a409926..8b32e6d 100644 ---- a/mm/mprotect.c -+++ b/mm/mprotect.c -@@ -23,10 +23,17 @@ - #include <linux/mmu_notifier.h> - #include <linux/migrate.h> - #include <linux/perf_event.h> -+ -+#ifdef CONFIG_PAX_MPROTECT -+#include <linux/elf.h> -+#include <linux/binfmts.h> -+#endif -+ - #include <asm/uaccess.h> - #include <asm/pgtable.h> - #include <asm/cacheflush.h> - #include <asm/tlbflush.h> -+#include <asm/mmu_context.h> - - #ifndef pgprot_modify - static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot) -@@ -141,6 +148,48 @@ static void change_protection(struct vm_area_struct *vma, - flush_tlb_range(vma, start, end); - } - -+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT -+/* called while holding the mmap semaphor for writing except stack expansion */ -+void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot) -+{ -+ unsigned long oldlimit, newlimit = 0UL; -+ -+ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || (__supported_pte_mask & _PAGE_NX)) -+ return; -+ -+ spin_lock(&mm->page_table_lock); -+ oldlimit = mm->context.user_cs_limit; -+ if ((prot & VM_EXEC) && oldlimit < end) -+ /* USER_CS limit moved up */ -+ newlimit = end; -+ else if (!(prot & VM_EXEC) && start < oldlimit && oldlimit <= end) -+ /* USER_CS limit moved down */ -+ newlimit = start; -+ -+ if (newlimit) { -+ mm->context.user_cs_limit = newlimit; -+ -+#ifdef CONFIG_SMP -+ wmb(); -+ cpus_clear(mm->context.cpu_user_cs_mask); -+ cpu_set(smp_processor_id(), mm->context.cpu_user_cs_mask); -+#endif -+ -+ set_user_cs(mm->context.user_cs_base, mm->context.user_cs_limit, smp_processor_id()); -+ } -+ spin_unlock(&mm->page_table_lock); -+ if (newlimit == end) { -+ struct vm_area_struct *vma = find_vma(mm, oldlimit); -+ -+ for (; vma && vma->vm_start < end; vma = vma->vm_next) -+ if (is_vm_hugetlb_page(vma)) -+ hugetlb_change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot); -+ else -+ change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot, vma_wants_writenotify(vma)); -+ } -+} -+#endif -+ - int - mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev, - unsigned long start, unsigned long end, unsigned long newflags) -@@ -153,11 +202,29 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev, - int error; - int dirty_accountable = 0; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m = NULL; -+ unsigned long start_m, end_m; -+ -+ start_m = start + SEGMEXEC_TASK_SIZE; -+ end_m = end + SEGMEXEC_TASK_SIZE; -+#endif -+ - if (newflags == oldflags) { - *pprev = vma; - return 0; - } - -+ if (newflags & (VM_READ | VM_WRITE | VM_EXEC)) { -+ struct vm_area_struct *prev = vma->vm_prev, *next = vma->vm_next; -+ -+ if (next && (next->vm_flags & VM_GROWSDOWN) && sysctl_heap_stack_gap > next->vm_start - end) -+ return -ENOMEM; -+ -+ if (prev && (prev->vm_flags & VM_GROWSUP) && sysctl_heap_stack_gap > start - prev->vm_end) -+ return -ENOMEM; -+ } -+ - /* - * If we make a private mapping writable we increase our commit; - * but (without finer accounting) cannot reduce our commit if we -@@ -174,6 +241,42 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev, - } - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && ((oldflags ^ newflags) & VM_EXEC)) { -+ if (start != vma->vm_start) { -+ error = split_vma(mm, vma, start, 1); -+ if (error) -+ goto fail; -+ BUG_ON(!*pprev || (*pprev)->vm_next == vma); -+ *pprev = (*pprev)->vm_next; -+ } -+ -+ if (end != vma->vm_end) { -+ error = split_vma(mm, vma, end, 0); -+ if (error) -+ goto fail; -+ } -+ -+ if (pax_find_mirror_vma(vma)) { -+ error = __do_munmap(mm, start_m, end_m - start_m); -+ if (error) -+ goto fail; -+ } else { -+ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); -+ if (!vma_m) { -+ error = -ENOMEM; -+ goto fail; -+ } -+ vma->vm_flags = newflags; -+ error = pax_mirror_vma(vma_m, vma); -+ if (error) { -+ vma->vm_flags = oldflags; -+ goto fail; -+ } -+ } -+ } -+#endif -+ - /* - * First try to merge with previous and/or next vma. - */ -@@ -204,9 +307,21 @@ success: - * vm_flags and vm_page_prot are protected by the mmap_sem - * held in write mode. - */ -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (newflags & VM_EXEC) && ((vma->vm_flags ^ newflags) & VM_READ)) -+ pax_find_mirror_vma(vma)->vm_flags ^= VM_READ; -+#endif -+ - vma->vm_flags = newflags; -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (mm->binfmt && mm->binfmt->handle_mprotect) -+ mm->binfmt->handle_mprotect(vma, newflags); -+#endif -+ - vma->vm_page_prot = pgprot_modify(vma->vm_page_prot, -- vm_get_page_prot(newflags)); -+ vm_get_page_prot(vma->vm_flags)); - - if (vma_wants_writenotify(vma)) { - vma->vm_page_prot = vm_get_page_prot(newflags & ~VM_SHARED); -@@ -248,6 +363,17 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len, - end = start + len; - if (end <= start) - return -ENOMEM; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) { -+ if (end > SEGMEXEC_TASK_SIZE) -+ return -EINVAL; -+ } else -+#endif -+ -+ if (end > TASK_SIZE) -+ return -EINVAL; -+ - if (!arch_validate_prot(prot)) - return -EINVAL; - -@@ -255,7 +381,7 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len, - /* - * Does the application expect PROT_READ to imply PROT_EXEC: - */ -- if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC)) -+ if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC)) - prot |= PROT_EXEC; - - vm_flags = calc_vm_prot_bits(prot); -@@ -288,6 +414,11 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len, - if (start > vma->vm_start) - prev = vma; - -+#ifdef CONFIG_PAX_MPROTECT -+ if (current->mm->binfmt && current->mm->binfmt->handle_mprotect) -+ current->mm->binfmt->handle_mprotect(vma, vm_flags); -+#endif -+ - for (nstart = start ; ; ) { - unsigned long newflags; - -@@ -297,6 +428,14 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len, - - /* newflags >> 4 shift VM_MAY% in place of VM_% */ - if ((newflags & ~(newflags >> 4)) & (VM_READ | VM_WRITE | VM_EXEC)) { -+ if (prot & (PROT_WRITE | PROT_EXEC)) -+ gr_log_rwxmprotect(vma->vm_file); -+ -+ error = -EACCES; -+ goto out; -+ } -+ -+ if (!gr_acl_handle_mprotect(vma->vm_file, prot)) { - error = -EACCES; - goto out; - } -@@ -311,6 +450,9 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len, - error = mprotect_fixup(vma, &prev, nstart, tmp, newflags); - if (error) - goto out; -+ -+ track_exec_limit(current->mm, nstart, tmp, vm_flags); -+ - nstart = tmp; - - if (nstart < prev->vm_end) -diff --git a/mm/mremap.c b/mm/mremap.c -index db8d983..76506cb 100644 ---- a/mm/mremap.c -+++ b/mm/mremap.c -@@ -106,6 +106,12 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd, - continue; - pte = ptep_get_and_clear(mm, old_addr, old_pte); - pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr); -+ -+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT -+ if (!(__supported_pte_mask & _PAGE_NX) && (new_vma->vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC) -+ pte = pte_exprotect(pte); -+#endif -+ - set_pte_at(mm, new_addr, new_pte, pte); - } - -@@ -299,6 +305,11 @@ static struct vm_area_struct *vma_to_resize(unsigned long addr, - if (is_vm_hugetlb_page(vma)) - goto Einval; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (pax_find_mirror_vma(vma)) -+ goto Einval; -+#endif -+ - /* We can't remap across vm area boundaries */ - if (old_len > vma->vm_end - addr) - goto Efault; -@@ -355,20 +366,25 @@ static unsigned long mremap_to(unsigned long addr, - unsigned long ret = -EINVAL; - unsigned long charged = 0; - unsigned long map_flags; -+ unsigned long pax_task_size = TASK_SIZE; - - if (new_addr & ~PAGE_MASK) - goto out; - -- if (new_len > TASK_SIZE || new_addr > TASK_SIZE - new_len) -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ pax_task_size -= PAGE_SIZE; -+ -+ if (new_len > TASK_SIZE || new_addr > pax_task_size - new_len) - goto out; - - /* Check if the location we're moving into overlaps the - * old location at all, and fail if it does. - */ -- if ((new_addr <= addr) && (new_addr+new_len) > addr) -- goto out; -- -- if ((addr <= new_addr) && (addr+old_len) > new_addr) -+ if (addr + old_len > new_addr && new_addr + new_len > addr) - goto out; - - ret = security_file_mmap(NULL, 0, 0, 0, new_addr, 1); -@@ -440,6 +456,7 @@ unsigned long do_mremap(unsigned long addr, - struct vm_area_struct *vma; - unsigned long ret = -EINVAL; - unsigned long charged = 0; -+ unsigned long pax_task_size = TASK_SIZE; - - if (flags & ~(MREMAP_FIXED | MREMAP_MAYMOVE)) - goto out; -@@ -458,6 +475,17 @@ unsigned long do_mremap(unsigned long addr, - if (!new_len) - goto out; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ pax_task_size -= PAGE_SIZE; -+ -+ if (new_len > pax_task_size || addr > pax_task_size-new_len || -+ old_len > pax_task_size || addr > pax_task_size-old_len) -+ goto out; -+ - if (flags & MREMAP_FIXED) { - if (flags & MREMAP_MAYMOVE) - ret = mremap_to(addr, old_len, new_addr, new_len); -@@ -507,6 +535,7 @@ unsigned long do_mremap(unsigned long addr, - addr + new_len); - } - ret = addr; -+ track_exec_limit(vma->vm_mm, vma->vm_start, addr + new_len, vma->vm_flags); - goto out; - } - } -@@ -533,7 +562,13 @@ unsigned long do_mremap(unsigned long addr, - ret = security_file_mmap(NULL, 0, 0, 0, new_addr, 1); - if (ret) - goto out; -+ -+ map_flags = vma->vm_flags; - ret = move_vma(vma, addr, old_len, new_len, new_addr); -+ if (!(ret & ~PAGE_MASK)) { -+ track_exec_limit(current->mm, addr, addr + old_len, 0UL); -+ track_exec_limit(current->mm, new_addr, new_addr + new_len, map_flags); -+ } - } - out: - if (ret & ~PAGE_MASK) -diff --git a/mm/nommu.c b/mm/nommu.c -index bb8f4f0..40d3e02 100644 ---- a/mm/nommu.c -+++ b/mm/nommu.c -@@ -62,7 +62,6 @@ int sysctl_overcommit_memory = OVERCOMMIT_GUESS; /* heuristic overcommit */ - int sysctl_overcommit_ratio = 50; /* default is 50% */ - int sysctl_max_map_count = DEFAULT_MAX_MAP_COUNT; - int sysctl_nr_trim_pages = CONFIG_NOMMU_INITIAL_TRIM_EXCESS; --int heap_stack_gap = 0; - - atomic_long_t mmap_pages_allocated; - -@@ -827,15 +826,6 @@ struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr) - EXPORT_SYMBOL(find_vma); - - /* -- * find a VMA -- * - we don't extend stack VMAs under NOMMU conditions -- */ --struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr) --{ -- return find_vma(mm, addr); --} -- --/* - * expand a stack to a given address - * - not supported under NOMMU conditions - */ -@@ -1580,6 +1570,7 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma, - - /* most fields are the same, copy all, and then fixup */ - *new = *vma; -+ INIT_LIST_HEAD(&new->anon_vma_chain); - *region = *vma->vm_region; - new->vm_region = region; - -diff --git a/mm/page_alloc.c b/mm/page_alloc.c -index 918330f..ae99ae1 100644 ---- a/mm/page_alloc.c -+++ b/mm/page_alloc.c -@@ -335,7 +335,7 @@ out: - * This usage means that zero-order pages may not be compound. - */ - --static void free_compound_page(struct page *page) -+void free_compound_page(struct page *page) - { - __free_pages_ok(page, compound_order(page)); - } -@@ -692,6 +692,10 @@ static bool free_pages_prepare(struct page *page, unsigned int order) - int i; - int bad = 0; - -+#ifdef CONFIG_PAX_MEMORY_SANITIZE -+ unsigned long index = 1UL << order; -+#endif -+ - trace_mm_page_free(page, order); - kmemcheck_free_shadow(page, order); - -@@ -707,6 +711,12 @@ static bool free_pages_prepare(struct page *page, unsigned int order) - debug_check_no_obj_freed(page_address(page), - PAGE_SIZE << order); - } -+ -+#ifdef CONFIG_PAX_MEMORY_SANITIZE -+ for (; index; --index) -+ sanitize_highpage(page + index - 1); -+#endif -+ - arch_free_page(page, order); - kernel_map_pages(page, 1 << order, 0); - -@@ -830,8 +840,10 @@ static int prep_new_page(struct page *page, int order, gfp_t gfp_flags) - arch_alloc_page(page, order); - kernel_map_pages(page, 1 << order, 1); - -+#ifndef CONFIG_PAX_MEMORY_SANITIZE - if (gfp_flags & __GFP_ZERO) - prep_zero_page(page, order, gfp_flags); -+#endif - - if (order && (gfp_flags & __GFP_COMP)) - prep_compound_page(page, order); -@@ -3523,7 +3535,13 @@ static int pageblock_is_reserved(unsigned long start_pfn, unsigned long end_pfn) - unsigned long pfn; - - for (pfn = start_pfn; pfn < end_pfn; pfn++) { -+#ifdef CONFIG_X86_32 -+ /* boot failures in VMware 8 on 32bit vanilla since -+ this change */ -+ if (!pfn_valid(pfn) || PageReserved(pfn_to_page(pfn))) -+#else - if (!pfn_valid_within(pfn) || PageReserved(pfn_to_page(pfn))) -+#endif - return 1; - } - return 0; -diff --git a/mm/percpu.c b/mm/percpu.c -index bb4be74..a43ea85 100644 ---- a/mm/percpu.c -+++ b/mm/percpu.c -@@ -122,7 +122,7 @@ static unsigned int pcpu_low_unit_cpu __read_mostly; - static unsigned int pcpu_high_unit_cpu __read_mostly; - - /* the address of the first chunk which starts with the kernel static area */ --void *pcpu_base_addr __read_mostly; -+void *pcpu_base_addr __read_only; - EXPORT_SYMBOL_GPL(pcpu_base_addr); - - static const int *pcpu_unit_map __read_mostly; /* cpu -> unit */ -diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c -index c20ff48..137702a 100644 ---- a/mm/process_vm_access.c -+++ b/mm/process_vm_access.c -@@ -13,6 +13,7 @@ - #include <linux/uio.h> - #include <linux/sched.h> - #include <linux/highmem.h> -+#include <linux/security.h> - #include <linux/ptrace.h> - #include <linux/slab.h> - #include <linux/syscalls.h> -@@ -258,19 +259,19 @@ static ssize_t process_vm_rw_core(pid_t pid, const struct iovec *lvec, - size_t iov_l_curr_offset = 0; - ssize_t iov_len; - -+ return -ENOSYS; // PaX: until properly audited -+ - /* - * Work out how many pages of struct pages we're going to need - * when eventually calling get_user_pages - */ - for (i = 0; i < riovcnt; i++) { - iov_len = rvec[i].iov_len; -- if (iov_len > 0) { -- nr_pages_iov = ((unsigned long)rvec[i].iov_base -- + iov_len) -- / PAGE_SIZE - (unsigned long)rvec[i].iov_base -- / PAGE_SIZE + 1; -- nr_pages = max(nr_pages, nr_pages_iov); -- } -+ if (iov_len <= 0) -+ continue; -+ nr_pages_iov = ((unsigned long)rvec[i].iov_base + iov_len) / PAGE_SIZE - -+ (unsigned long)rvec[i].iov_base / PAGE_SIZE + 1; -+ nr_pages = max(nr_pages, nr_pages_iov); - } - - if (nr_pages == 0) -@@ -298,6 +299,11 @@ static ssize_t process_vm_rw_core(pid_t pid, const struct iovec *lvec, - goto free_proc_pages; - } - -+ if (gr_handle_ptrace(task, vm_write ? PTRACE_POKETEXT : PTRACE_ATTACH)) { -+ rc = -EPERM; -+ goto put_task_struct; -+ } -+ - mm = mm_access(task, PTRACE_MODE_ATTACH); - if (!mm || IS_ERR(mm)) { - rc = IS_ERR(mm) ? PTR_ERR(mm) : -ESRCH; -diff --git a/mm/rmap.c b/mm/rmap.c -index 5b5ad58..0f77903 100644 ---- a/mm/rmap.c -+++ b/mm/rmap.c -@@ -167,6 +167,10 @@ int anon_vma_prepare(struct vm_area_struct *vma) - struct anon_vma *anon_vma = vma->anon_vma; - struct anon_vma_chain *avc; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct anon_vma_chain *avc_m = NULL; -+#endif -+ - might_sleep(); - if (unlikely(!anon_vma)) { - struct mm_struct *mm = vma->vm_mm; -@@ -176,6 +180,12 @@ int anon_vma_prepare(struct vm_area_struct *vma) - if (!avc) - goto out_enomem; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ avc_m = anon_vma_chain_alloc(GFP_KERNEL); -+ if (!avc_m) -+ goto out_enomem_free_avc; -+#endif -+ - anon_vma = find_mergeable_anon_vma(vma); - allocated = NULL; - if (!anon_vma) { -@@ -189,6 +199,18 @@ int anon_vma_prepare(struct vm_area_struct *vma) - /* page_table_lock to protect against threads */ - spin_lock(&mm->page_table_lock); - if (likely(!vma->anon_vma)) { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m = pax_find_mirror_vma(vma); -+ -+ if (vma_m) { -+ BUG_ON(vma_m->anon_vma); -+ vma_m->anon_vma = anon_vma; -+ anon_vma_chain_link(vma_m, avc_m, anon_vma); -+ avc_m = NULL; -+ } -+#endif -+ - vma->anon_vma = anon_vma; - anon_vma_chain_link(vma, avc, anon_vma); - allocated = NULL; -@@ -199,12 +221,24 @@ int anon_vma_prepare(struct vm_area_struct *vma) - - if (unlikely(allocated)) - put_anon_vma(allocated); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (unlikely(avc_m)) -+ anon_vma_chain_free(avc_m); -+#endif -+ - if (unlikely(avc)) - anon_vma_chain_free(avc); - } - return 0; - - out_enomem_free_avc: -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (avc_m) -+ anon_vma_chain_free(avc_m); -+#endif -+ - anon_vma_chain_free(avc); - out_enomem: - return -ENOMEM; -@@ -240,7 +274,7 @@ static inline void unlock_anon_vma_root(struct anon_vma *root) - * Attach the anon_vmas from src to dst. - * Returns 0 on success, -ENOMEM on failure. - */ --int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src) -+int anon_vma_clone(struct vm_area_struct *dst, const struct vm_area_struct *src) - { - struct anon_vma_chain *avc, *pavc; - struct anon_vma *root = NULL; -@@ -318,7 +352,7 @@ void anon_vma_moveto_tail(struct vm_area_struct *dst) - * the corresponding VMA in the parent process is attached to. - * Returns 0 on success, non-zero on failure. - */ --int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma) -+int anon_vma_fork(struct vm_area_struct *vma, const struct vm_area_struct *pvma) - { - struct anon_vma_chain *avc; - struct anon_vma *anon_vma; -diff --git a/mm/shmem.c b/mm/shmem.c -index f99ff3e..faea8b6 100644 ---- a/mm/shmem.c -+++ b/mm/shmem.c -@@ -31,7 +31,7 @@ - #include <linux/export.h> - #include <linux/swap.h> - --static struct vfsmount *shm_mnt; -+struct vfsmount *shm_mnt; - - #ifdef CONFIG_SHMEM - /* -@@ -74,7 +74,7 @@ static struct vfsmount *shm_mnt; - #define BOGO_DIRENT_SIZE 20 - - /* Symlink up to this size is kmalloc'ed instead of using a swappable page */ --#define SHORT_SYMLINK_LEN 128 -+#define SHORT_SYMLINK_LEN 64 - - struct shmem_xattr { - struct list_head list; /* anchored by shmem_inode_info->xattr_list */ -@@ -2235,8 +2235,7 @@ int shmem_fill_super(struct super_block *sb, void *data, int silent) - int err = -ENOMEM; - - /* Round up to L1_CACHE_BYTES to resist false sharing */ -- sbinfo = kzalloc(max((int)sizeof(struct shmem_sb_info), -- L1_CACHE_BYTES), GFP_KERNEL); -+ sbinfo = kzalloc(max(sizeof(struct shmem_sb_info), L1_CACHE_BYTES), GFP_KERNEL); - if (!sbinfo) - return -ENOMEM; - -diff --git a/mm/slab.c b/mm/slab.c -index e901a36..ee8fe97 100644 ---- a/mm/slab.c -+++ b/mm/slab.c -@@ -153,7 +153,7 @@ - - /* Legal flag mask for kmem_cache_create(). */ - #if DEBUG --# define CREATE_MASK (SLAB_RED_ZONE | \ -+# define CREATE_MASK (SLAB_USERCOPY | SLAB_RED_ZONE | \ - SLAB_POISON | SLAB_HWCACHE_ALIGN | \ - SLAB_CACHE_DMA | \ - SLAB_STORE_USER | \ -@@ -161,7 +161,7 @@ - SLAB_DESTROY_BY_RCU | SLAB_MEM_SPREAD | \ - SLAB_DEBUG_OBJECTS | SLAB_NOLEAKTRACE | SLAB_NOTRACK) - #else --# define CREATE_MASK (SLAB_HWCACHE_ALIGN | \ -+# define CREATE_MASK (SLAB_USERCOPY | SLAB_HWCACHE_ALIGN | \ - SLAB_CACHE_DMA | \ - SLAB_RECLAIM_ACCOUNT | SLAB_PANIC | \ - SLAB_DESTROY_BY_RCU | SLAB_MEM_SPREAD | \ -@@ -290,7 +290,7 @@ struct kmem_list3 { - * Need this for bootstrapping a per node allocator. - */ - #define NUM_INIT_LISTS (3 * MAX_NUMNODES) --static struct kmem_list3 __initdata initkmem_list3[NUM_INIT_LISTS]; -+static struct kmem_list3 initkmem_list3[NUM_INIT_LISTS]; - #define CACHE_CACHE 0 - #define SIZE_AC MAX_NUMNODES - #define SIZE_L3 (2 * MAX_NUMNODES) -@@ -391,10 +391,10 @@ static void kmem_list3_init(struct kmem_list3 *parent) - if ((x)->max_freeable < i) \ - (x)->max_freeable = i; \ - } while (0) --#define STATS_INC_ALLOCHIT(x) atomic_inc(&(x)->allochit) --#define STATS_INC_ALLOCMISS(x) atomic_inc(&(x)->allocmiss) --#define STATS_INC_FREEHIT(x) atomic_inc(&(x)->freehit) --#define STATS_INC_FREEMISS(x) atomic_inc(&(x)->freemiss) -+#define STATS_INC_ALLOCHIT(x) atomic_inc_unchecked(&(x)->allochit) -+#define STATS_INC_ALLOCMISS(x) atomic_inc_unchecked(&(x)->allocmiss) -+#define STATS_INC_FREEHIT(x) atomic_inc_unchecked(&(x)->freehit) -+#define STATS_INC_FREEMISS(x) atomic_inc_unchecked(&(x)->freemiss) - #else - #define STATS_INC_ACTIVE(x) do { } while (0) - #define STATS_DEC_ACTIVE(x) do { } while (0) -@@ -542,7 +542,7 @@ static inline void *index_to_obj(struct kmem_cache *cache, struct slab *slab, - * reciprocal_divide(offset, cache->reciprocal_buffer_size) - */ - static inline unsigned int obj_to_index(const struct kmem_cache *cache, -- const struct slab *slab, void *obj) -+ const struct slab *slab, const void *obj) - { - u32 offset = (obj - slab->s_mem); - return reciprocal_divide(offset, cache->reciprocal_buffer_size); -@@ -568,7 +568,7 @@ struct cache_names { - static struct cache_names __initdata cache_names[] = { - #define CACHE(x) { .name = "size-" #x, .name_dma = "size-" #x "(DMA)" }, - #include <linux/kmalloc_sizes.h> -- {NULL,} -+ {NULL} - #undef CACHE - }; - -@@ -1588,7 +1588,7 @@ void __init kmem_cache_init(void) - sizes[INDEX_AC].cs_cachep = kmem_cache_create(names[INDEX_AC].name, - sizes[INDEX_AC].cs_size, - ARCH_KMALLOC_MINALIGN, -- ARCH_KMALLOC_FLAGS|SLAB_PANIC, -+ ARCH_KMALLOC_FLAGS|SLAB_PANIC|SLAB_USERCOPY, - NULL); - - if (INDEX_AC != INDEX_L3) { -@@ -1596,7 +1596,7 @@ void __init kmem_cache_init(void) - kmem_cache_create(names[INDEX_L3].name, - sizes[INDEX_L3].cs_size, - ARCH_KMALLOC_MINALIGN, -- ARCH_KMALLOC_FLAGS|SLAB_PANIC, -+ ARCH_KMALLOC_FLAGS|SLAB_PANIC|SLAB_USERCOPY, - NULL); - } - -@@ -1614,7 +1614,7 @@ void __init kmem_cache_init(void) - sizes->cs_cachep = kmem_cache_create(names->name, - sizes->cs_size, - ARCH_KMALLOC_MINALIGN, -- ARCH_KMALLOC_FLAGS|SLAB_PANIC, -+ ARCH_KMALLOC_FLAGS|SLAB_PANIC|SLAB_USERCOPY, - NULL); - } - #ifdef CONFIG_ZONE_DMA -@@ -4390,10 +4390,10 @@ static int s_show(struct seq_file *m, void *p) - } - /* cpu stats */ - { -- unsigned long allochit = atomic_read(&cachep->allochit); -- unsigned long allocmiss = atomic_read(&cachep->allocmiss); -- unsigned long freehit = atomic_read(&cachep->freehit); -- unsigned long freemiss = atomic_read(&cachep->freemiss); -+ unsigned long allochit = atomic_read_unchecked(&cachep->allochit); -+ unsigned long allocmiss = atomic_read_unchecked(&cachep->allocmiss); -+ unsigned long freehit = atomic_read_unchecked(&cachep->freehit); -+ unsigned long freemiss = atomic_read_unchecked(&cachep->freemiss); - - seq_printf(m, " : cpustat %6lu %6lu %6lu %6lu", - allochit, allocmiss, freehit, freemiss); -@@ -4652,13 +4652,62 @@ static int __init slab_proc_init(void) - { - proc_create("slabinfo",S_IWUSR|S_IRUSR,NULL,&proc_slabinfo_operations); - #ifdef CONFIG_DEBUG_SLAB_LEAK -- proc_create("slab_allocators", 0, NULL, &proc_slabstats_operations); -+ proc_create("slab_allocators", S_IRUSR, NULL, &proc_slabstats_operations); - #endif - return 0; - } - module_init(slab_proc_init); - #endif - -+void check_object_size(const void *ptr, unsigned long n, bool to) -+{ -+ -+#ifdef CONFIG_PAX_USERCOPY -+ struct page *page; -+ struct kmem_cache *cachep = NULL; -+ struct slab *slabp; -+ unsigned int objnr; -+ unsigned long offset; -+ const char *type; -+ -+ if (!n) -+ return; -+ -+ type = "<null>"; -+ if (ZERO_OR_NULL_PTR(ptr)) -+ goto report; -+ -+ if (!virt_addr_valid(ptr)) -+ return; -+ -+ page = virt_to_head_page(ptr); -+ -+ type = "<process stack>"; -+ if (!PageSlab(page)) { -+ if (object_is_on_stack(ptr, n) == -1) -+ goto report; -+ return; -+ } -+ -+ cachep = page_get_cache(page); -+ type = cachep->name; -+ if (!(cachep->flags & SLAB_USERCOPY)) -+ goto report; -+ -+ slabp = page_get_slab(page); -+ objnr = obj_to_index(cachep, slabp, ptr); -+ BUG_ON(objnr >= cachep->num); -+ offset = ptr - index_to_obj(cachep, slabp, objnr) - obj_offset(cachep); -+ if (offset <= obj_size(cachep) && n <= obj_size(cachep) - offset) -+ return; -+ -+report: -+ pax_report_usercopy(ptr, n, to, type); -+#endif -+ -+} -+EXPORT_SYMBOL(check_object_size); -+ - /** - * ksize - get the actual amount of memory allocated for a given object - * @objp: Pointer to the object -diff --git a/mm/slob.c b/mm/slob.c -index 8105be4..e045f96 100644 ---- a/mm/slob.c -+++ b/mm/slob.c -@@ -29,7 +29,7 @@ - * If kmalloc is asked for objects of PAGE_SIZE or larger, it calls - * alloc_pages() directly, allocating compound pages so the page order - * does not have to be separately tracked, and also stores the exact -- * allocation size in page->private so that it can be used to accurately -+ * allocation size in slob_page->size so that it can be used to accurately - * provide ksize(). These objects are detected in kfree() because slob_page() - * is false for them. - * -@@ -58,6 +58,7 @@ - */ - - #include <linux/kernel.h> -+#include <linux/sched.h> - #include <linux/slab.h> - #include <linux/mm.h> - #include <linux/swap.h> /* struct reclaim_state */ -@@ -102,7 +103,8 @@ struct slob_page { - unsigned long flags; /* mandatory */ - atomic_t _count; /* mandatory */ - slobidx_t units; /* free units left in page */ -- unsigned long pad[2]; -+ unsigned long pad[1]; -+ unsigned long size; /* size when >=PAGE_SIZE */ - slob_t *free; /* first free slob_t in page */ - struct list_head list; /* linked list of free pages */ - }; -@@ -135,7 +137,7 @@ static LIST_HEAD(free_slob_large); - */ - static inline int is_slob_page(struct slob_page *sp) - { -- return PageSlab((struct page *)sp); -+ return PageSlab((struct page *)sp) && !sp->size; - } - - static inline void set_slob_page(struct slob_page *sp) -@@ -150,7 +152,7 @@ static inline void clear_slob_page(struct slob_page *sp) - - static inline struct slob_page *slob_page(const void *addr) - { -- return (struct slob_page *)virt_to_page(addr); -+ return (struct slob_page *)virt_to_head_page(addr); - } - - /* -@@ -210,7 +212,7 @@ static void set_slob(slob_t *s, slobidx_t size, slob_t *next) - /* - * Return the size of a slob block. - */ --static slobidx_t slob_units(slob_t *s) -+static slobidx_t slob_units(const slob_t *s) - { - if (s->units > 0) - return s->units; -@@ -220,7 +222,7 @@ static slobidx_t slob_units(slob_t *s) - /* - * Return the next free slob block pointer after this one. - */ --static slob_t *slob_next(slob_t *s) -+static slob_t *slob_next(const slob_t *s) - { - slob_t *base = (slob_t *)((unsigned long)s & PAGE_MASK); - slobidx_t next; -@@ -235,7 +237,7 @@ static slob_t *slob_next(slob_t *s) - /* - * Returns true if s is the last free block in its page. - */ --static int slob_last(slob_t *s) -+static int slob_last(const slob_t *s) - { - return !((unsigned long)slob_next(s) & ~PAGE_MASK); - } -@@ -254,6 +256,7 @@ static void *slob_new_pages(gfp_t gfp, int order, int node) - if (!page) - return NULL; - -+ set_slob_page(page); - return page_address(page); - } - -@@ -370,11 +373,11 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node) - if (!b) - return NULL; - sp = slob_page(b); -- set_slob_page(sp); - - spin_lock_irqsave(&slob_lock, flags); - sp->units = SLOB_UNITS(PAGE_SIZE); - sp->free = b; -+ sp->size = 0; - INIT_LIST_HEAD(&sp->list); - set_slob(b, SLOB_UNITS(PAGE_SIZE), b + SLOB_UNITS(PAGE_SIZE)); - set_slob_page_free(sp, slob_list); -@@ -476,10 +479,9 @@ out: - * End of slob allocator proper. Begin kmem_cache_alloc and kmalloc frontend. - */ - --void *__kmalloc_node(size_t size, gfp_t gfp, int node) -+static void *__kmalloc_node_align(size_t size, gfp_t gfp, int node, int align) - { -- unsigned int *m; -- int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN); -+ slob_t *m; - void *ret; - - gfp &= gfp_allowed_mask; -@@ -494,7 +496,10 @@ void *__kmalloc_node(size_t size, gfp_t gfp, int node) - - if (!m) - return NULL; -- *m = size; -+ BUILD_BUG_ON(ARCH_KMALLOC_MINALIGN < 2 * SLOB_UNIT); -+ BUILD_BUG_ON(ARCH_SLAB_MINALIGN < 2 * SLOB_UNIT); -+ m[0].units = size; -+ m[1].units = align; - ret = (void *)m + align; - - trace_kmalloc_node(_RET_IP_, ret, -@@ -506,16 +511,25 @@ void *__kmalloc_node(size_t size, gfp_t gfp, int node) - gfp |= __GFP_COMP; - ret = slob_new_pages(gfp, order, node); - if (ret) { -- struct page *page; -- page = virt_to_page(ret); -- page->private = size; -+ struct slob_page *sp; -+ sp = slob_page(ret); -+ sp->size = size; - } - - trace_kmalloc_node(_RET_IP_, ret, - size, PAGE_SIZE << order, gfp, node); - } - -- kmemleak_alloc(ret, size, 1, gfp); -+ return ret; -+} -+ -+void *__kmalloc_node(size_t size, gfp_t gfp, int node) -+{ -+ int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN); -+ void *ret = __kmalloc_node_align(size, gfp, node, align); -+ -+ if (!ZERO_OR_NULL_PTR(ret)) -+ kmemleak_alloc(ret, size, 1, gfp); - return ret; - } - EXPORT_SYMBOL(__kmalloc_node); -@@ -533,13 +547,92 @@ void kfree(const void *block) - sp = slob_page(block); - if (is_slob_page(sp)) { - int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN); -- unsigned int *m = (unsigned int *)(block - align); -- slob_free(m, *m + align); -- } else -+ slob_t *m = (slob_t *)(block - align); -+ slob_free(m, m[0].units + align); -+ } else { -+ clear_slob_page(sp); -+ free_slob_page(sp); -+ sp->size = 0; - put_page(&sp->page); -+ } - } - EXPORT_SYMBOL(kfree); - -+void check_object_size(const void *ptr, unsigned long n, bool to) -+{ -+ -+#ifdef CONFIG_PAX_USERCOPY -+ struct slob_page *sp; -+ const slob_t *free; -+ const void *base; -+ unsigned long flags; -+ const char *type; -+ -+ if (!n) -+ return; -+ -+ type = "<null>"; -+ if (ZERO_OR_NULL_PTR(ptr)) -+ goto report; -+ -+ if (!virt_addr_valid(ptr)) -+ return; -+ -+ type = "<process stack>"; -+ sp = slob_page(ptr); -+ if (!PageSlab((struct page *)sp)) { -+ if (object_is_on_stack(ptr, n) == -1) -+ goto report; -+ return; -+ } -+ -+ type = "<slob>"; -+ if (sp->size) { -+ base = page_address(&sp->page); -+ if (base <= ptr && n <= sp->size - (ptr - base)) -+ return; -+ goto report; -+ } -+ -+ /* some tricky double walking to find the chunk */ -+ spin_lock_irqsave(&slob_lock, flags); -+ base = (void *)((unsigned long)ptr & PAGE_MASK); -+ free = sp->free; -+ -+ while (!slob_last(free) && (void *)free <= ptr) { -+ base = free + slob_units(free); -+ free = slob_next(free); -+ } -+ -+ while (base < (void *)free) { -+ slobidx_t m = ((slob_t *)base)[0].units, align = ((slob_t *)base)[1].units; -+ int size = SLOB_UNIT * SLOB_UNITS(m + align); -+ int offset; -+ -+ if (ptr < base + align) -+ break; -+ -+ offset = ptr - base - align; -+ if (offset >= m) { -+ base += size; -+ continue; -+ } -+ -+ if (n > m - offset) -+ break; -+ -+ spin_unlock_irqrestore(&slob_lock, flags); -+ return; -+ } -+ -+ spin_unlock_irqrestore(&slob_lock, flags); -+report: -+ pax_report_usercopy(ptr, n, to, type); -+#endif -+ -+} -+EXPORT_SYMBOL(check_object_size); -+ - /* can't use ksize for kmem_cache_alloc memory, only kmalloc */ - size_t ksize(const void *block) - { -@@ -552,10 +645,10 @@ size_t ksize(const void *block) - sp = slob_page(block); - if (is_slob_page(sp)) { - int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN); -- unsigned int *m = (unsigned int *)(block - align); -- return SLOB_UNITS(*m) * SLOB_UNIT; -+ slob_t *m = (slob_t *)(block - align); -+ return SLOB_UNITS(m[0].units) * SLOB_UNIT; - } else -- return sp->page.private; -+ return sp->size; - } - EXPORT_SYMBOL(ksize); - -@@ -571,8 +664,13 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size, - { - struct kmem_cache *c; - -+#ifdef CONFIG_PAX_USERCOPY -+ c = __kmalloc_node_align(sizeof(struct kmem_cache), -+ GFP_KERNEL, -1, ARCH_KMALLOC_MINALIGN); -+#else - c = slob_alloc(sizeof(struct kmem_cache), - GFP_KERNEL, ARCH_KMALLOC_MINALIGN, -1); -+#endif - - if (c) { - c->name = name; -@@ -614,17 +712,25 @@ void *kmem_cache_alloc_node(struct kmem_cache *c, gfp_t flags, int node) - - lockdep_trace_alloc(flags); - -+#ifdef CONFIG_PAX_USERCOPY -+ b = __kmalloc_node_align(c->size, flags, node, c->align); -+#else - if (c->size < PAGE_SIZE) { - b = slob_alloc(c->size, flags, c->align, node); - trace_kmem_cache_alloc_node(_RET_IP_, b, c->size, - SLOB_UNITS(c->size) * SLOB_UNIT, - flags, node); - } else { -+ struct slob_page *sp; -+ - b = slob_new_pages(flags, get_order(c->size), node); -+ sp = slob_page(b); -+ sp->size = c->size; - trace_kmem_cache_alloc_node(_RET_IP_, b, c->size, - PAGE_SIZE << get_order(c->size), - flags, node); - } -+#endif - - if (c->ctor) - c->ctor(b); -@@ -636,10 +742,16 @@ EXPORT_SYMBOL(kmem_cache_alloc_node); - - static void __kmem_cache_free(void *b, int size) - { -- if (size < PAGE_SIZE) -+ struct slob_page *sp = slob_page(b); -+ -+ if (is_slob_page(sp)) - slob_free(b, size); -- else -+ else { -+ clear_slob_page(sp); -+ free_slob_page(sp); -+ sp->size = 0; - slob_free_pages(b, get_order(size)); -+ } - } - - static void kmem_rcu_free(struct rcu_head *head) -@@ -652,17 +764,31 @@ static void kmem_rcu_free(struct rcu_head *head) - - void kmem_cache_free(struct kmem_cache *c, void *b) - { -+ int size = c->size; -+ -+#ifdef CONFIG_PAX_USERCOPY -+ if (size + c->align < PAGE_SIZE) { -+ size += c->align; -+ b -= c->align; -+ } -+#endif -+ - kmemleak_free_recursive(b, c->flags); - if (unlikely(c->flags & SLAB_DESTROY_BY_RCU)) { - struct slob_rcu *slob_rcu; -- slob_rcu = b + (c->size - sizeof(struct slob_rcu)); -- slob_rcu->size = c->size; -+ slob_rcu = b + (size - sizeof(struct slob_rcu)); -+ slob_rcu->size = size; - call_rcu(&slob_rcu->head, kmem_rcu_free); - } else { -- __kmem_cache_free(b, c->size); -+ __kmem_cache_free(b, size); - } - -+#ifdef CONFIG_PAX_USERCOPY -+ trace_kfree(_RET_IP_, b); -+#else - trace_kmem_cache_free(_RET_IP_, b); -+#endif -+ - } - EXPORT_SYMBOL(kmem_cache_free); - -diff --git a/mm/slub.c b/mm/slub.c -index 71de9b5..dd263c5 100644 ---- a/mm/slub.c -+++ b/mm/slub.c -@@ -209,7 +209,7 @@ struct track { - - enum track_item { TRACK_ALLOC, TRACK_FREE }; - --#ifdef CONFIG_SYSFS -+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD) - static int sysfs_slab_add(struct kmem_cache *); - static int sysfs_slab_alias(struct kmem_cache *, const char *); - static void sysfs_slab_remove(struct kmem_cache *); -@@ -538,7 +538,7 @@ static void print_track(const char *s, struct track *t) - if (!t->addr) - return; - -- printk(KERN_ERR "INFO: %s in %pS age=%lu cpu=%u pid=%d\n", -+ printk(KERN_ERR "INFO: %s in %pA age=%lu cpu=%u pid=%d\n", - s, (void *)t->addr, jiffies - t->when, t->cpu, t->pid); - #ifdef CONFIG_STACKTRACE - { -@@ -2603,6 +2603,8 @@ void kmem_cache_free(struct kmem_cache *s, void *x) - - page = virt_to_head_page(x); - -+ BUG_ON(!PageSlab(page)); -+ - slab_free(s, page, x, _RET_IP_); - - trace_kmem_cache_free(_RET_IP_, x); -@@ -2636,7 +2638,7 @@ static int slub_min_objects; - * Merge control. If this is set then no merging of slab caches will occur. - * (Could be removed. This was introduced to pacify the merge skeptics.) - */ --static int slub_nomerge; -+static int slub_nomerge = 1; - - /* - * Calculate the order of allocation given an slab object size. -@@ -3089,7 +3091,7 @@ static int kmem_cache_open(struct kmem_cache *s, - else - s->cpu_partial = 30; - -- s->refcount = 1; -+ atomic_set(&s->refcount, 1); - #ifdef CONFIG_NUMA - s->remote_node_defrag_ratio = 1000; - #endif -@@ -3193,8 +3195,7 @@ static inline int kmem_cache_close(struct kmem_cache *s) - void kmem_cache_destroy(struct kmem_cache *s) - { - down_write(&slub_lock); -- s->refcount--; -- if (!s->refcount) { -+ if (atomic_dec_and_test(&s->refcount)) { - list_del(&s->list); - up_write(&slub_lock); - if (kmem_cache_close(s)) { -@@ -3405,6 +3406,50 @@ void *__kmalloc_node(size_t size, gfp_t flags, int node) - EXPORT_SYMBOL(__kmalloc_node); - #endif - -+void check_object_size(const void *ptr, unsigned long n, bool to) -+{ -+ -+#ifdef CONFIG_PAX_USERCOPY -+ struct page *page; -+ struct kmem_cache *s = NULL; -+ unsigned long offset; -+ const char *type; -+ -+ if (!n) -+ return; -+ -+ type = "<null>"; -+ if (ZERO_OR_NULL_PTR(ptr)) -+ goto report; -+ -+ if (!virt_addr_valid(ptr)) -+ return; -+ -+ page = virt_to_head_page(ptr); -+ -+ type = "<process stack>"; -+ if (!PageSlab(page)) { -+ if (object_is_on_stack(ptr, n) == -1) -+ goto report; -+ return; -+ } -+ -+ s = page->slab; -+ type = s->name; -+ if (!(s->flags & SLAB_USERCOPY)) -+ goto report; -+ -+ offset = (ptr - page_address(page)) % s->size; -+ if (offset <= s->objsize && n <= s->objsize - offset) -+ return; -+ -+report: -+ pax_report_usercopy(ptr, n, to, type); -+#endif -+ -+} -+EXPORT_SYMBOL(check_object_size); -+ - size_t ksize(const void *object) - { - struct page *page; -@@ -3679,7 +3724,7 @@ static void __init kmem_cache_bootstrap_fixup(struct kmem_cache *s) - int node; - - list_add(&s->list, &slab_caches); -- s->refcount = -1; -+ atomic_set(&s->refcount, -1); - - for_each_node_state(node, N_NORMAL_MEMORY) { - struct kmem_cache_node *n = get_node(s, node); -@@ -3799,17 +3844,17 @@ void __init kmem_cache_init(void) - - /* Caches that are not of the two-to-the-power-of size */ - if (KMALLOC_MIN_SIZE <= 32) { -- kmalloc_caches[1] = create_kmalloc_cache("kmalloc-96", 96, 0); -+ kmalloc_caches[1] = create_kmalloc_cache("kmalloc-96", 96, SLAB_USERCOPY); - caches++; - } - - if (KMALLOC_MIN_SIZE <= 64) { -- kmalloc_caches[2] = create_kmalloc_cache("kmalloc-192", 192, 0); -+ kmalloc_caches[2] = create_kmalloc_cache("kmalloc-192", 192, SLAB_USERCOPY); - caches++; - } - - for (i = KMALLOC_SHIFT_LOW; i < SLUB_PAGE_SHIFT; i++) { -- kmalloc_caches[i] = create_kmalloc_cache("kmalloc", 1 << i, 0); -+ kmalloc_caches[i] = create_kmalloc_cache("kmalloc", 1 << i, SLAB_USERCOPY); - caches++; - } - -@@ -3877,7 +3922,7 @@ static int slab_unmergeable(struct kmem_cache *s) - /* - * We may have set a slab to be unmergeable during bootstrap. - */ -- if (s->refcount < 0) -+ if (atomic_read(&s->refcount) < 0) - return 1; - - return 0; -@@ -3936,7 +3981,7 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size, - down_write(&slub_lock); - s = find_mergeable(size, align, flags, name, ctor); - if (s) { -- s->refcount++; -+ atomic_inc(&s->refcount); - /* - * Adjust the object sizes so that we clear - * the complete object on kzalloc. -@@ -3945,7 +3990,7 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size, - s->inuse = max_t(int, s->inuse, ALIGN(size, sizeof(void *))); - - if (sysfs_slab_alias(s, name)) { -- s->refcount--; -+ atomic_dec(&s->refcount); - goto err; - } - up_write(&slub_lock); -@@ -4074,7 +4119,7 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags, - } - #endif - --#ifdef CONFIG_SYSFS -+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD) - static int count_inuse(struct page *page) - { - return page->inuse; -@@ -4461,12 +4506,12 @@ static void resiliency_test(void) - validate_slab_cache(kmalloc_caches[9]); - } - #else --#ifdef CONFIG_SYSFS -+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD) - static void resiliency_test(void) {}; - #endif - #endif - --#ifdef CONFIG_SYSFS -+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD) - enum slab_stat_type { - SL_ALL, /* All slabs */ - SL_PARTIAL, /* Only partially allocated slabs */ -@@ -4709,7 +4754,7 @@ SLAB_ATTR_RO(ctor); - - static ssize_t aliases_show(struct kmem_cache *s, char *buf) - { -- return sprintf(buf, "%d\n", s->refcount - 1); -+ return sprintf(buf, "%d\n", atomic_read(&s->refcount) - 1); - } - SLAB_ATTR_RO(aliases); - -@@ -5280,6 +5325,7 @@ static char *create_unique_id(struct kmem_cache *s) - return name; - } - -+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD) - static int sysfs_slab_add(struct kmem_cache *s) - { - int err; -@@ -5342,6 +5388,7 @@ static void sysfs_slab_remove(struct kmem_cache *s) - kobject_del(&s->kobj); - kobject_put(&s->kobj); - } -+#endif - - /* - * Need to buffer aliases during bootup until sysfs becomes -@@ -5355,6 +5402,7 @@ struct saved_alias { - - static struct saved_alias *alias_list; - -+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD) - static int sysfs_slab_alias(struct kmem_cache *s, const char *name) - { - struct saved_alias *al; -@@ -5377,6 +5425,7 @@ static int sysfs_slab_alias(struct kmem_cache *s, const char *name) - alias_list = al; - return 0; - } -+#endif - - static int __init slab_sysfs_init(void) - { -diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c -index 1b7e22a..3fcd4f3 100644 ---- a/mm/sparse-vmemmap.c -+++ b/mm/sparse-vmemmap.c -@@ -128,7 +128,7 @@ pud_t * __meminit vmemmap_pud_populate(pgd_t *pgd, unsigned long addr, int node) - void *p = vmemmap_alloc_block(PAGE_SIZE, node); - if (!p) - return NULL; -- pud_populate(&init_mm, pud, p); -+ pud_populate_kernel(&init_mm, pud, p); - } - return pud; - } -@@ -140,7 +140,7 @@ pgd_t * __meminit vmemmap_pgd_populate(unsigned long addr, int node) - void *p = vmemmap_alloc_block(PAGE_SIZE, node); - if (!p) - return NULL; -- pgd_populate(&init_mm, pgd, p); -+ pgd_populate_kernel(&init_mm, pgd, p); - } - return pgd; - } -diff --git a/mm/swap.c b/mm/swap.c -index 5c13f13..f1cfc13 100644 ---- a/mm/swap.c -+++ b/mm/swap.c -@@ -30,6 +30,7 @@ - #include <linux/backing-dev.h> - #include <linux/memcontrol.h> - #include <linux/gfp.h> -+#include <linux/hugetlb.h> - - #include "internal.h" - -@@ -70,6 +71,8 @@ static void __put_compound_page(struct page *page) - - __page_cache_release(page); - dtor = get_compound_page_dtor(page); -+ if (!PageHuge(page)) -+ BUG_ON(dtor != free_compound_page); - (*dtor)(page); - } - -diff --git a/mm/swapfile.c b/mm/swapfile.c -index 38186d9..bfba6d3 100644 ---- a/mm/swapfile.c -+++ b/mm/swapfile.c -@@ -61,7 +61,7 @@ static DEFINE_MUTEX(swapon_mutex); - - static DECLARE_WAIT_QUEUE_HEAD(proc_poll_wait); - /* Activity counter to indicate that a swapon or swapoff has occurred */ --static atomic_t proc_poll_event = ATOMIC_INIT(0); -+static atomic_unchecked_t proc_poll_event = ATOMIC_INIT(0); - - static inline unsigned char swap_count(unsigned char ent) - { -@@ -1671,7 +1671,7 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile) - } - filp_close(swap_file, NULL); - err = 0; -- atomic_inc(&proc_poll_event); -+ atomic_inc_unchecked(&proc_poll_event); - wake_up_interruptible(&proc_poll_wait); - - out_dput: -@@ -1687,8 +1687,8 @@ static unsigned swaps_poll(struct file *file, poll_table *wait) - - poll_wait(file, &proc_poll_wait, wait); - -- if (seq->poll_event != atomic_read(&proc_poll_event)) { -- seq->poll_event = atomic_read(&proc_poll_event); -+ if (seq->poll_event != atomic_read_unchecked(&proc_poll_event)) { -+ seq->poll_event = atomic_read_unchecked(&proc_poll_event); - return POLLIN | POLLRDNORM | POLLERR | POLLPRI; - } - -@@ -1786,7 +1786,7 @@ static int swaps_open(struct inode *inode, struct file *file) - return ret; - - seq = file->private_data; -- seq->poll_event = atomic_read(&proc_poll_event); -+ seq->poll_event = atomic_read_unchecked(&proc_poll_event); - return 0; - } - -@@ -2123,7 +2123,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags) - (p->flags & SWP_DISCARDABLE) ? "D" : ""); - - mutex_unlock(&swapon_mutex); -- atomic_inc(&proc_poll_event); -+ atomic_inc_unchecked(&proc_poll_event); - wake_up_interruptible(&proc_poll_wait); - - if (S_ISREG(inode->i_mode)) -diff --git a/mm/util.c b/mm/util.c -index ae962b3..0bba886 100644 ---- a/mm/util.c -+++ b/mm/util.c -@@ -284,6 +284,12 @@ done: - void arch_pick_mmap_layout(struct mm_struct *mm) - { - mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } -diff --git a/mm/vmalloc.c b/mm/vmalloc.c -index 1196c77..2e608e8 100644 ---- a/mm/vmalloc.c -+++ b/mm/vmalloc.c -@@ -39,8 +39,19 @@ static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end) - - pte = pte_offset_kernel(pmd, addr); - do { -- pte_t ptent = ptep_get_and_clear(&init_mm, addr, pte); -- WARN_ON(!pte_none(ptent) && !pte_present(ptent)); -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ if ((unsigned long)MODULES_EXEC_VADDR <= addr && addr < (unsigned long)MODULES_EXEC_END) { -+ BUG_ON(!pte_exec(*pte)); -+ set_pte_at(&init_mm, addr, pte, pfn_pte(__pa(addr) >> PAGE_SHIFT, PAGE_KERNEL_EXEC)); -+ continue; -+ } -+#endif -+ -+ { -+ pte_t ptent = ptep_get_and_clear(&init_mm, addr, pte); -+ WARN_ON(!pte_none(ptent) && !pte_present(ptent)); -+ } - } while (pte++, addr += PAGE_SIZE, addr != end); - } - -@@ -91,6 +102,7 @@ static int vmap_pte_range(pmd_t *pmd, unsigned long addr, - unsigned long end, pgprot_t prot, struct page **pages, int *nr) - { - pte_t *pte; -+ int ret = -ENOMEM; - - /* - * nr is a running index into the array which helps higher level -@@ -100,17 +112,30 @@ static int vmap_pte_range(pmd_t *pmd, unsigned long addr, - pte = pte_alloc_kernel(pmd, addr); - if (!pte) - return -ENOMEM; -+ -+ pax_open_kernel(); - do { - struct page *page = pages[*nr]; - -- if (WARN_ON(!pte_none(*pte))) -- return -EBUSY; -- if (WARN_ON(!page)) -- return -ENOMEM; -+#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ if (pgprot_val(prot) & _PAGE_NX) -+#endif -+ -+ if (WARN_ON(!pte_none(*pte))) { -+ ret = -EBUSY; -+ goto out; -+ } -+ if (WARN_ON(!page)) { -+ ret = -ENOMEM; -+ goto out; -+ } - set_pte_at(&init_mm, addr, pte, mk_pte(page, prot)); - (*nr)++; - } while (pte++, addr += PAGE_SIZE, addr != end); -- return 0; -+ ret = 0; -+out: -+ pax_close_kernel(); -+ return ret; - } - - static int vmap_pmd_range(pud_t *pud, unsigned long addr, -@@ -119,7 +144,7 @@ static int vmap_pmd_range(pud_t *pud, unsigned long addr, - pmd_t *pmd; - unsigned long next; - -- pmd = pmd_alloc(&init_mm, pud, addr); -+ pmd = pmd_alloc_kernel(&init_mm, pud, addr); - if (!pmd) - return -ENOMEM; - do { -@@ -136,7 +161,7 @@ static int vmap_pud_range(pgd_t *pgd, unsigned long addr, - pud_t *pud; - unsigned long next; - -- pud = pud_alloc(&init_mm, pgd, addr); -+ pud = pud_alloc_kernel(&init_mm, pgd, addr); - if (!pud) - return -ENOMEM; - do { -@@ -191,11 +216,20 @@ int is_vmalloc_or_module_addr(const void *x) - * and fall back on vmalloc() if that fails. Others - * just put it in the vmalloc space. - */ --#if defined(CONFIG_MODULES) && defined(MODULES_VADDR) -+#ifdef CONFIG_MODULES -+#ifdef MODULES_VADDR - unsigned long addr = (unsigned long)x; - if (addr >= MODULES_VADDR && addr < MODULES_END) - return 1; - #endif -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ if (x >= (const void *)MODULES_EXEC_VADDR && x < (const void *)MODULES_EXEC_END) -+ return 1; -+#endif -+ -+#endif -+ - return is_vmalloc_addr(x); - } - -@@ -216,8 +250,14 @@ struct page *vmalloc_to_page(const void *vmalloc_addr) - - if (!pgd_none(*pgd)) { - pud_t *pud = pud_offset(pgd, addr); -+#ifdef CONFIG_X86 -+ if (!pud_large(*pud)) -+#endif - if (!pud_none(*pud)) { - pmd_t *pmd = pmd_offset(pud, addr); -+#ifdef CONFIG_X86 -+ if (!pmd_large(*pmd)) -+#endif - if (!pmd_none(*pmd)) { - pte_t *ptep, pte; - -@@ -332,6 +372,10 @@ static void purge_vmap_area_lazy(void); - static struct vmap_area *alloc_vmap_area(unsigned long size, - unsigned long align, - unsigned long vstart, unsigned long vend, -+ int node, gfp_t gfp_mask) __size_overflow(1); -+static struct vmap_area *alloc_vmap_area(unsigned long size, -+ unsigned long align, -+ unsigned long vstart, unsigned long vend, - int node, gfp_t gfp_mask) - { - struct vmap_area *va; -@@ -1320,6 +1364,16 @@ static struct vm_struct *__get_vm_area_node(unsigned long size, - struct vm_struct *area; - - BUG_ON(in_interrupt()); -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC) -+ if (flags & VM_KERNEXEC) { -+ if (start != VMALLOC_START || end != VMALLOC_END) -+ return NULL; -+ start = (unsigned long)MODULES_EXEC_VADDR; -+ end = (unsigned long)MODULES_EXEC_END; -+ } -+#endif -+ - if (flags & VM_IOREMAP) { - int bit = fls(size); - -@@ -1552,6 +1606,11 @@ void *vmap(struct page **pages, unsigned int count, - if (count > totalram_pages) - return NULL; - -+#if defined(CONFIG_MODULES) && defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC) -+ if (!(pgprot_val(prot) & _PAGE_NX)) -+ flags |= VM_KERNEXEC; -+#endif -+ - area = get_vm_area_caller((count << PAGE_SHIFT), flags, - __builtin_return_address(0)); - if (!area) -@@ -1653,6 +1712,13 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align, - if (!size || (size >> PAGE_SHIFT) > totalram_pages) - goto fail; - -+#if defined(CONFIG_MODULES) && defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC) -+ if (!(pgprot_val(prot) & _PAGE_NX)) -+ area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNLIST | VM_KERNEXEC, -+ VMALLOC_START, VMALLOC_END, node, gfp_mask, caller); -+ else -+#endif -+ - area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNLIST, - start, end, node, gfp_mask, caller); - if (!area) -@@ -1826,10 +1892,9 @@ EXPORT_SYMBOL(vzalloc_node); - * For tight control over page level allocator and protection flags - * use __vmalloc() instead. - */ -- - void *vmalloc_exec(unsigned long size) - { -- return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC, -+ return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL_EXEC, - -1, __builtin_return_address(0)); - } - -@@ -2124,6 +2189,8 @@ int remap_vmalloc_range(struct vm_area_struct *vma, void *addr, - unsigned long uaddr = vma->vm_start; - unsigned long usize = vma->vm_end - vma->vm_start; - -+ BUG_ON(vma->vm_mirror); -+ - if ((PAGE_SIZE-1) & (unsigned long)addr) - return -EINVAL; - -@@ -2376,8 +2443,8 @@ struct vm_struct **pcpu_get_vm_areas(const unsigned long *offsets, - return NULL; - } - -- vms = kzalloc(sizeof(vms[0]) * nr_vms, GFP_KERNEL); -- vas = kzalloc(sizeof(vas[0]) * nr_vms, GFP_KERNEL); -+ vms = kcalloc(nr_vms, sizeof(vms[0]), GFP_KERNEL); -+ vas = kcalloc(nr_vms, sizeof(vas[0]), GFP_KERNEL); - if (!vas || !vms) - goto err_free2; - -diff --git a/mm/vmstat.c b/mm/vmstat.c -index 7db1b9b..e9f6b07 100644 ---- a/mm/vmstat.c -+++ b/mm/vmstat.c -@@ -78,7 +78,7 @@ void vm_events_fold_cpu(int cpu) - * - * vm_stat contains the global counters - */ --atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS] __cacheline_aligned_in_smp; -+atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS] __cacheline_aligned_in_smp; - EXPORT_SYMBOL(vm_stat); - - #ifdef CONFIG_SMP -@@ -454,7 +454,7 @@ void refresh_cpu_vm_stats(int cpu) - v = p->vm_stat_diff[i]; - p->vm_stat_diff[i] = 0; - local_irq_restore(flags); -- atomic_long_add(v, &zone->vm_stat[i]); -+ atomic_long_add_unchecked(v, &zone->vm_stat[i]); - global_diff[i] += v; - #ifdef CONFIG_NUMA - /* 3 seconds idle till flush */ -@@ -492,7 +492,7 @@ void refresh_cpu_vm_stats(int cpu) - - for (i = 0; i < NR_VM_ZONE_STAT_ITEMS; i++) - if (global_diff[i]) -- atomic_long_add(global_diff[i], &vm_stat[i]); -+ atomic_long_add_unchecked(global_diff[i], &vm_stat[i]); - } - - #endif -@@ -1208,10 +1208,20 @@ static int __init setup_vmstat(void) - start_cpu_timer(cpu); - #endif - #ifdef CONFIG_PROC_FS -- proc_create("buddyinfo", S_IRUGO, NULL, &fragmentation_file_operations); -- proc_create("pagetypeinfo", S_IRUGO, NULL, &pagetypeinfo_file_ops); -- proc_create("vmstat", S_IRUGO, NULL, &proc_vmstat_file_operations); -- proc_create("zoneinfo", S_IRUGO, NULL, &proc_zoneinfo_file_operations); -+ { -+ mode_t gr_mode = S_IRUGO; -+#ifdef CONFIG_GRKERNSEC_PROC_ADD -+ gr_mode = S_IRUSR; -+#endif -+ proc_create("buddyinfo", gr_mode, NULL, &fragmentation_file_operations); -+ proc_create("pagetypeinfo", gr_mode, NULL, &pagetypeinfo_file_ops); -+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP -+ proc_create("vmstat", gr_mode | S_IRGRP, NULL, &proc_vmstat_file_operations); -+#else -+ proc_create("vmstat", gr_mode, NULL, &proc_vmstat_file_operations); -+#endif -+ proc_create("zoneinfo", gr_mode, NULL, &proc_zoneinfo_file_operations); -+ } - #endif - return 0; - } -diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c -index efea35b..9c8dd0b 100644 ---- a/net/8021q/vlan.c -+++ b/net/8021q/vlan.c -@@ -554,8 +554,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg) - err = -EPERM; - if (!capable(CAP_NET_ADMIN)) - break; -- if ((args.u.name_type >= 0) && -- (args.u.name_type < VLAN_NAME_TYPE_HIGHEST)) { -+ if (args.u.name_type < VLAN_NAME_TYPE_HIGHEST) { - struct vlan_net *vn; - - vn = net_generic(net, vlan_net_id); -diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c -index fccae26..e7ece2f 100644 ---- a/net/9p/trans_fd.c -+++ b/net/9p/trans_fd.c -@@ -425,7 +425,7 @@ static int p9_fd_write(struct p9_client *client, void *v, int len) - oldfs = get_fs(); - set_fs(get_ds()); - /* The cast to a user pointer is valid due to the set_fs() */ -- ret = vfs_write(ts->wr, (__force void __user *)v, len, &ts->wr->f_pos); -+ ret = vfs_write(ts->wr, (void __force_user *)v, len, &ts->wr->f_pos); - set_fs(oldfs); - - if (ret <= 0 && ret != -ERESTARTSYS && ret != -EAGAIN) -diff --git a/net/atm/atm_misc.c b/net/atm/atm_misc.c -index 876fbe8..8bbea9f 100644 ---- a/net/atm/atm_misc.c -+++ b/net/atm/atm_misc.c -@@ -17,7 +17,7 @@ int atm_charge(struct atm_vcc *vcc, int truesize) - if (atomic_read(&sk_atm(vcc)->sk_rmem_alloc) <= sk_atm(vcc)->sk_rcvbuf) - return 1; - atm_return(vcc, truesize); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - return 0; - } - EXPORT_SYMBOL(atm_charge); -@@ -39,7 +39,7 @@ struct sk_buff *atm_alloc_charge(struct atm_vcc *vcc, int pdu_size, - } - } - atm_return(vcc, guess); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - return NULL; - } - EXPORT_SYMBOL(atm_alloc_charge); -@@ -86,7 +86,7 @@ EXPORT_SYMBOL(atm_pcr_goal); - - void sonet_copy_stats(struct k_sonet_stats *from, struct sonet_stats *to) - { --#define __HANDLE_ITEM(i) to->i = atomic_read(&from->i) -+#define __HANDLE_ITEM(i) to->i = atomic_read_unchecked(&from->i) - __SONET_ITEMS - #undef __HANDLE_ITEM - } -@@ -94,7 +94,7 @@ EXPORT_SYMBOL(sonet_copy_stats); - - void sonet_subtract_stats(struct k_sonet_stats *from, struct sonet_stats *to) - { --#define __HANDLE_ITEM(i) atomic_sub(to->i, &from->i) -+#define __HANDLE_ITEM(i) atomic_sub_unchecked(to->i,&from->i) - __SONET_ITEMS - #undef __HANDLE_ITEM - } -diff --git a/net/atm/lec.h b/net/atm/lec.h -index dfc0719..47c5322 100644 ---- a/net/atm/lec.h -+++ b/net/atm/lec.h -@@ -48,7 +48,7 @@ struct lane2_ops { - const u8 *tlvs, u32 sizeoftlvs); - void (*associate_indicator) (struct net_device *dev, const u8 *mac_addr, - const u8 *tlvs, u32 sizeoftlvs); --}; -+} __no_const; - - /* - * ATM LAN Emulation supports both LLC & Dix Ethernet EtherType -diff --git a/net/atm/mpc.h b/net/atm/mpc.h -index 0919a88..a23d54e 100644 ---- a/net/atm/mpc.h -+++ b/net/atm/mpc.h -@@ -33,7 +33,7 @@ struct mpoa_client { - struct mpc_parameters parameters; /* parameters for this client */ - - const struct net_device_ops *old_ops; -- struct net_device_ops new_ops; -+ net_device_ops_no_const new_ops; - }; - - -diff --git a/net/atm/proc.c b/net/atm/proc.c -index 0d020de..011c7bb 100644 ---- a/net/atm/proc.c -+++ b/net/atm/proc.c -@@ -45,9 +45,9 @@ static void add_stats(struct seq_file *seq, const char *aal, - const struct k_atm_aal_stats *stats) - { - seq_printf(seq, "%s ( %d %d %d %d %d )", aal, -- atomic_read(&stats->tx), atomic_read(&stats->tx_err), -- atomic_read(&stats->rx), atomic_read(&stats->rx_err), -- atomic_read(&stats->rx_drop)); -+ atomic_read_unchecked(&stats->tx),atomic_read_unchecked(&stats->tx_err), -+ atomic_read_unchecked(&stats->rx),atomic_read_unchecked(&stats->rx_err), -+ atomic_read_unchecked(&stats->rx_drop)); - } - - static void atm_dev_info(struct seq_file *seq, const struct atm_dev *dev) -diff --git a/net/atm/resources.c b/net/atm/resources.c -index 23f45ce..c748f1a 100644 ---- a/net/atm/resources.c -+++ b/net/atm/resources.c -@@ -160,7 +160,7 @@ EXPORT_SYMBOL(atm_dev_deregister); - static void copy_aal_stats(struct k_atm_aal_stats *from, - struct atm_aal_stats *to) - { --#define __HANDLE_ITEM(i) to->i = atomic_read(&from->i) -+#define __HANDLE_ITEM(i) to->i = atomic_read_unchecked(&from->i) - __AAL_STAT_ITEMS - #undef __HANDLE_ITEM - } -@@ -168,7 +168,7 @@ static void copy_aal_stats(struct k_atm_aal_stats *from, - static void subtract_aal_stats(struct k_atm_aal_stats *from, - struct atm_aal_stats *to) - { --#define __HANDLE_ITEM(i) atomic_sub(to->i, &from->i) -+#define __HANDLE_ITEM(i) atomic_sub_unchecked(to->i, &from->i) - __AAL_STAT_ITEMS - #undef __HANDLE_ITEM - } -diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c -index a6d5d63..1cc6c2b 100644 ---- a/net/batman-adv/bat_iv_ogm.c -+++ b/net/batman-adv/bat_iv_ogm.c -@@ -539,7 +539,7 @@ static void bat_iv_ogm_schedule(struct hard_iface *hard_iface, - - /* change sequence number to network order */ - batman_ogm_packet->seqno = -- htonl((uint32_t)atomic_read(&hard_iface->seqno)); -+ htonl((uint32_t)atomic_read_unchecked(&hard_iface->seqno)); - - batman_ogm_packet->ttvn = atomic_read(&bat_priv->ttvn); - batman_ogm_packet->tt_crc = htons((uint16_t) -@@ -559,7 +559,7 @@ static void bat_iv_ogm_schedule(struct hard_iface *hard_iface, - else - batman_ogm_packet->gw_flags = NO_FLAGS; - -- atomic_inc(&hard_iface->seqno); -+ atomic_inc_unchecked(&hard_iface->seqno); - - slide_own_bcast_window(hard_iface); - bat_iv_ogm_queue_add(bat_priv, hard_iface->packet_buff, -@@ -917,7 +917,7 @@ static void bat_iv_ogm_process(const struct ethhdr *ethhdr, - return; - - /* could be changed by schedule_own_packet() */ -- if_incoming_seqno = atomic_read(&if_incoming->seqno); -+ if_incoming_seqno = atomic_read_unchecked(&if_incoming->seqno); - - has_directlink_flag = (batman_ogm_packet->flags & DIRECTLINK ? 1 : 0); - -diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c -index 3778977..f6a9450 100644 ---- a/net/batman-adv/hard-interface.c -+++ b/net/batman-adv/hard-interface.c -@@ -328,8 +328,8 @@ int hardif_enable_interface(struct hard_iface *hard_iface, - hard_iface->batman_adv_ptype.dev = hard_iface->net_dev; - dev_add_pack(&hard_iface->batman_adv_ptype); - -- atomic_set(&hard_iface->seqno, 1); -- atomic_set(&hard_iface->frag_seqno, 1); -+ atomic_set_unchecked(&hard_iface->seqno, 1); -+ atomic_set_unchecked(&hard_iface->frag_seqno, 1); - bat_info(hard_iface->soft_iface, "Adding interface: %s\n", - hard_iface->net_dev->name); - -diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c -index a5590f4..8d31969 100644 ---- a/net/batman-adv/soft-interface.c -+++ b/net/batman-adv/soft-interface.c -@@ -645,7 +645,7 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface) - - /* set broadcast sequence number */ - bcast_packet->seqno = -- htonl(atomic_inc_return(&bat_priv->bcast_seqno)); -+ htonl(atomic_inc_return_unchecked(&bat_priv->bcast_seqno)); - - add_bcast_packet_to_list(bat_priv, skb, 1); - -@@ -841,7 +841,7 @@ struct net_device *softif_create(const char *name) - atomic_set(&bat_priv->batman_queue_left, BATMAN_QUEUE_LEN); - - atomic_set(&bat_priv->mesh_state, MESH_INACTIVE); -- atomic_set(&bat_priv->bcast_seqno, 1); -+ atomic_set_unchecked(&bat_priv->bcast_seqno, 1); - atomic_set(&bat_priv->ttvn, 0); - atomic_set(&bat_priv->tt_local_changes, 0); - atomic_set(&bat_priv->tt_ogm_append_cnt, 0); -diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h -index 302efb5..1590365 100644 ---- a/net/batman-adv/types.h -+++ b/net/batman-adv/types.h -@@ -38,8 +38,8 @@ struct hard_iface { - int16_t if_num; - char if_status; - struct net_device *net_dev; -- atomic_t seqno; -- atomic_t frag_seqno; -+ atomic_unchecked_t seqno; -+ atomic_unchecked_t frag_seqno; - unsigned char *packet_buff; - int packet_len; - struct kobject *hardif_obj; -@@ -155,7 +155,7 @@ struct bat_priv { - atomic_t orig_interval; /* uint */ - atomic_t hop_penalty; /* uint */ - atomic_t log_level; /* uint */ -- atomic_t bcast_seqno; -+ atomic_unchecked_t bcast_seqno; - atomic_t bcast_queue_left; - atomic_t batman_queue_left; - atomic_t ttvn; /* translation table version number */ -diff --git a/net/batman-adv/unicast.c b/net/batman-adv/unicast.c -index 676f6a6..3b4e668 100644 ---- a/net/batman-adv/unicast.c -+++ b/net/batman-adv/unicast.c -@@ -264,7 +264,7 @@ int frag_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv, - frag1->flags = UNI_FRAG_HEAD | large_tail; - frag2->flags = large_tail; - -- seqno = atomic_add_return(2, &hard_iface->frag_seqno); -+ seqno = atomic_add_return_unchecked(2, &hard_iface->frag_seqno); - frag1->seqno = htons(seqno - 1); - frag2->seqno = htons(seqno); - -diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c -index 5238b6b..c9798ce 100644 ---- a/net/bluetooth/hci_conn.c -+++ b/net/bluetooth/hci_conn.c -@@ -233,7 +233,7 @@ void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]) - memset(&cp, 0, sizeof(cp)); - - cp.handle = cpu_to_le16(conn->handle); -- memcpy(cp.ltk, ltk, sizeof(ltk)); -+ memcpy(cp.ltk, ltk, sizeof(cp.ltk)); - - hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp); - } -diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c -index 6f9c25b..d19fd66 100644 ---- a/net/bluetooth/l2cap_core.c -+++ b/net/bluetooth/l2cap_core.c -@@ -2466,8 +2466,10 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len, voi - break; - - case L2CAP_CONF_RFC: -- if (olen == sizeof(rfc)) -- memcpy(&rfc, (void *)val, olen); -+ if (olen != sizeof(rfc)) -+ break; -+ -+ memcpy(&rfc, (void *)val, olen); - - if (test_bit(CONF_STATE2_DEVICE, &chan->conf_state) && - rfc.mode != chan->mode) -@@ -2585,8 +2587,10 @@ static void l2cap_conf_rfc_get(struct l2cap_chan *chan, void *rsp, int len) - - switch (type) { - case L2CAP_CONF_RFC: -- if (olen == sizeof(rfc)) -- memcpy(&rfc, (void *)val, olen); -+ if (olen != sizeof(rfc)) -+ break; -+ -+ memcpy(&rfc, (void *)val, olen); - goto done; - } - } -diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c -index 5fe2ff3..10968b5 100644 ---- a/net/bridge/netfilter/ebtables.c -+++ b/net/bridge/netfilter/ebtables.c -@@ -1523,7 +1523,7 @@ static int do_ebt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len) - tmp.valid_hooks = t->table->valid_hooks; - } - mutex_unlock(&ebt_mutex); -- if (copy_to_user(user, &tmp, *len) != 0){ -+ if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0){ - BUGPRINT("c2u Didn't work\n"); - ret = -EFAULT; - break; -diff --git a/net/caif/cfctrl.c b/net/caif/cfctrl.c -index 5cf5222..6f704ad 100644 ---- a/net/caif/cfctrl.c -+++ b/net/caif/cfctrl.c -@@ -9,6 +9,7 @@ - #include <linux/stddef.h> - #include <linux/spinlock.h> - #include <linux/slab.h> -+#include <linux/sched.h> - #include <net/caif/caif_layer.h> - #include <net/caif/cfpkt.h> - #include <net/caif/cfctrl.h> -@@ -42,8 +43,8 @@ struct cflayer *cfctrl_create(void) - memset(&dev_info, 0, sizeof(dev_info)); - dev_info.id = 0xff; - cfsrvl_init(&this->serv, 0, &dev_info, false); -- atomic_set(&this->req_seq_no, 1); -- atomic_set(&this->rsp_seq_no, 1); -+ atomic_set_unchecked(&this->req_seq_no, 1); -+ atomic_set_unchecked(&this->rsp_seq_no, 1); - this->serv.layer.receive = cfctrl_recv; - sprintf(this->serv.layer.name, "ctrl"); - this->serv.layer.ctrlcmd = cfctrl_ctrlcmd; -@@ -129,8 +130,8 @@ static void cfctrl_insert_req(struct cfctrl *ctrl, - struct cfctrl_request_info *req) - { - spin_lock_bh(&ctrl->info_list_lock); -- atomic_inc(&ctrl->req_seq_no); -- req->sequence_no = atomic_read(&ctrl->req_seq_no); -+ atomic_inc_unchecked(&ctrl->req_seq_no); -+ req->sequence_no = atomic_read_unchecked(&ctrl->req_seq_no); - list_add_tail(&req->list, &ctrl->list); - spin_unlock_bh(&ctrl->info_list_lock); - } -@@ -148,7 +149,7 @@ static struct cfctrl_request_info *cfctrl_remove_req(struct cfctrl *ctrl, - if (p != first) - pr_warn("Requests are not received in order\n"); - -- atomic_set(&ctrl->rsp_seq_no, -+ atomic_set_unchecked(&ctrl->rsp_seq_no, - p->sequence_no); - list_del(&p->list); - goto out; -diff --git a/net/can/gw.c b/net/can/gw.c -index 3d79b12..8de85fa 100644 ---- a/net/can/gw.c -+++ b/net/can/gw.c -@@ -96,7 +96,7 @@ struct cf_mod { - struct { - void (*xor)(struct can_frame *cf, struct cgw_csum_xor *xor); - void (*crc8)(struct can_frame *cf, struct cgw_csum_crc8 *crc8); -- } csumfunc; -+ } __no_const csumfunc; - }; - - -diff --git a/net/compat.c b/net/compat.c -index e055708..3f80795 100644 ---- a/net/compat.c -+++ b/net/compat.c -@@ -71,9 +71,9 @@ int get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr __user *umsg) - __get_user(kmsg->msg_controllen, &umsg->msg_controllen) || - __get_user(kmsg->msg_flags, &umsg->msg_flags)) - return -EFAULT; -- kmsg->msg_name = compat_ptr(tmp1); -- kmsg->msg_iov = compat_ptr(tmp2); -- kmsg->msg_control = compat_ptr(tmp3); -+ kmsg->msg_name = (void __force_kernel *)compat_ptr(tmp1); -+ kmsg->msg_iov = (void __force_kernel *)compat_ptr(tmp2); -+ kmsg->msg_control = (void __force_kernel *)compat_ptr(tmp3); - return 0; - } - -@@ -85,7 +85,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov, - - if (kern_msg->msg_namelen) { - if (mode == VERIFY_READ) { -- int err = move_addr_to_kernel(kern_msg->msg_name, -+ int err = move_addr_to_kernel((void __force_user *)kern_msg->msg_name, - kern_msg->msg_namelen, - kern_address); - if (err < 0) -@@ -96,7 +96,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov, - kern_msg->msg_name = NULL; - - tot_len = iov_from_user_compat_to_kern(kern_iov, -- (struct compat_iovec __user *)kern_msg->msg_iov, -+ (struct compat_iovec __force_user *)kern_msg->msg_iov, - kern_msg->msg_iovlen); - if (tot_len >= 0) - kern_msg->msg_iov = kern_iov; -@@ -116,20 +116,20 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov, - - #define CMSG_COMPAT_FIRSTHDR(msg) \ - (((msg)->msg_controllen) >= sizeof(struct compat_cmsghdr) ? \ -- (struct compat_cmsghdr __user *)((msg)->msg_control) : \ -+ (struct compat_cmsghdr __force_user *)((msg)->msg_control) : \ - (struct compat_cmsghdr __user *)NULL) - - #define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \ - ((ucmlen) >= sizeof(struct compat_cmsghdr) && \ - (ucmlen) <= (unsigned long) \ - ((mhdr)->msg_controllen - \ -- ((char *)(ucmsg) - (char *)(mhdr)->msg_control))) -+ ((char __force_kernel *)(ucmsg) - (char *)(mhdr)->msg_control))) - - static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg, - struct compat_cmsghdr __user *cmsg, int cmsg_len) - { - char __user *ptr = (char __user *)cmsg + CMSG_COMPAT_ALIGN(cmsg_len); -- if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control) > -+ if ((unsigned long)(ptr + 1 - (char __force_user *)msg->msg_control) > - msg->msg_controllen) - return NULL; - return (struct compat_cmsghdr __user *)ptr; -@@ -219,7 +219,7 @@ Efault: - - int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data) - { -- struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control; -+ struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __force_user *) kmsg->msg_control; - struct compat_cmsghdr cmhdr; - int cmlen; - -@@ -275,7 +275,7 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat - - void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm) - { -- struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control; -+ struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __force_user *) kmsg->msg_control; - int fdmax = (kmsg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int); - int fdnum = scm->fp->count; - struct file **fp = scm->fp->fp; -@@ -372,7 +372,7 @@ static int do_set_sock_timeout(struct socket *sock, int level, - return -EFAULT; - old_fs = get_fs(); - set_fs(KERNEL_DS); -- err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime)); -+ err = sock_setsockopt(sock, level, optname, (char __force_user *)&ktime, sizeof(ktime)); - set_fs(old_fs); - - return err; -@@ -433,7 +433,7 @@ static int do_get_sock_timeout(struct socket *sock, int level, int optname, - len = sizeof(ktime); - old_fs = get_fs(); - set_fs(KERNEL_DS); -- err = sock_getsockopt(sock, level, optname, (char *) &ktime, &len); -+ err = sock_getsockopt(sock, level, optname, (char __force_user *) &ktime, (int __force_user *)&len); - set_fs(old_fs); - - if (!err) { -@@ -576,7 +576,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname, - case MCAST_JOIN_GROUP: - case MCAST_LEAVE_GROUP: - { -- struct compat_group_req __user *gr32 = (void *)optval; -+ struct compat_group_req __user *gr32 = (void __user *)optval; - struct group_req __user *kgr = - compat_alloc_user_space(sizeof(struct group_req)); - u32 interface; -@@ -597,7 +597,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname, - case MCAST_BLOCK_SOURCE: - case MCAST_UNBLOCK_SOURCE: - { -- struct compat_group_source_req __user *gsr32 = (void *)optval; -+ struct compat_group_source_req __user *gsr32 = (void __user *)optval; - struct group_source_req __user *kgsr = compat_alloc_user_space( - sizeof(struct group_source_req)); - u32 interface; -@@ -618,7 +618,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname, - } - case MCAST_MSFILTER: - { -- struct compat_group_filter __user *gf32 = (void *)optval; -+ struct compat_group_filter __user *gf32 = (void __user *)optval; - struct group_filter __user *kgf; - u32 interface, fmode, numsrc; - -@@ -656,7 +656,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname, - char __user *optval, int __user *optlen, - int (*getsockopt)(struct sock *, int, int, char __user *, int __user *)) - { -- struct compat_group_filter __user *gf32 = (void *)optval; -+ struct compat_group_filter __user *gf32 = (void __user *)optval; - struct group_filter __user *kgf; - int __user *koptlen; - u32 interface, fmode, numsrc; -diff --git a/net/core/datagram.c b/net/core/datagram.c -index e4fbfd6..6a6ac94 100644 ---- a/net/core/datagram.c -+++ b/net/core/datagram.c -@@ -290,7 +290,7 @@ int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags) - } - - kfree_skb(skb); -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - sk_mem_reclaim_partial(sk); - - return err; -diff --git a/net/core/dev.c b/net/core/dev.c -index 99e1d75..adf968a 100644 ---- a/net/core/dev.c -+++ b/net/core/dev.c -@@ -1136,9 +1136,13 @@ void dev_load(struct net *net, const char *name) - if (no_module && capable(CAP_NET_ADMIN)) - no_module = request_module("netdev-%s", name); - if (no_module && capable(CAP_SYS_MODULE)) { -+#ifdef CONFIG_GRKERNSEC_MODHARDEN -+ ___request_module(true, "grsec_modharden_netdev", "%s", name); -+#else - if (!request_module("%s", name)) - pr_err("Loading kernel module for a network device with CAP_SYS_MODULE (deprecated). Use CAP_NET_ADMIN and alias netdev-%s instead.\n", - name); -+#endif - } - } - EXPORT_SYMBOL(dev_load); -@@ -1602,7 +1606,7 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb) - { - if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY) { - if (skb_copy_ubufs(skb, GFP_ATOMIC)) { -- atomic_long_inc(&dev->rx_dropped); -+ atomic_long_inc_unchecked(&dev->rx_dropped); - kfree_skb(skb); - return NET_RX_DROP; - } -@@ -1612,7 +1616,7 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb) - nf_reset(skb); - - if (unlikely(!is_skb_forwardable(dev, skb))) { -- atomic_long_inc(&dev->rx_dropped); -+ atomic_long_inc_unchecked(&dev->rx_dropped); - kfree_skb(skb); - return NET_RX_DROP; - } -@@ -2042,7 +2046,7 @@ static int illegal_highdma(struct net_device *dev, struct sk_buff *skb) - - struct dev_gso_cb { - void (*destructor)(struct sk_buff *skb); --}; -+} __no_const; - - #define DEV_GSO_CB(skb) ((struct dev_gso_cb *)(skb)->cb) - -@@ -2898,7 +2902,7 @@ enqueue: - - local_irq_restore(flags); - -- atomic_long_inc(&skb->dev->rx_dropped); -+ atomic_long_inc_unchecked(&skb->dev->rx_dropped); - kfree_skb(skb); - return NET_RX_DROP; - } -@@ -2970,7 +2974,7 @@ int netif_rx_ni(struct sk_buff *skb) - } - EXPORT_SYMBOL(netif_rx_ni); - --static void net_tx_action(struct softirq_action *h) -+static void net_tx_action(void) - { - struct softnet_data *sd = &__get_cpu_var(softnet_data); - -@@ -3258,7 +3262,7 @@ ncls: - if (pt_prev) { - ret = pt_prev->func(skb, skb->dev, pt_prev, orig_dev); - } else { -- atomic_long_inc(&skb->dev->rx_dropped); -+ atomic_long_inc_unchecked(&skb->dev->rx_dropped); - kfree_skb(skb); - /* Jamal, now you will not able to escape explaining - * me how you were going to use this. :-) -@@ -3818,7 +3822,7 @@ void netif_napi_del(struct napi_struct *napi) - } - EXPORT_SYMBOL(netif_napi_del); - --static void net_rx_action(struct softirq_action *h) -+static void net_rx_action(void) - { - struct softnet_data *sd = &__get_cpu_var(softnet_data); - unsigned long time_limit = jiffies + 2; -@@ -4288,8 +4292,13 @@ static int ptype_seq_show(struct seq_file *seq, void *v) - else - seq_printf(seq, "%04x", ntohs(pt->type)); - -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ seq_printf(seq, " %-8s %p\n", -+ pt->dev ? pt->dev->name : "", NULL); -+#else - seq_printf(seq, " %-8s %pF\n", - pt->dev ? pt->dev->name : "", pt->func); -+#endif - } - - return 0; -@@ -5839,7 +5848,7 @@ struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev, - } else { - netdev_stats_to_stats64(storage, &dev->stats); - } -- storage->rx_dropped += atomic_long_read(&dev->rx_dropped); -+ storage->rx_dropped += atomic_long_read_unchecked(&dev->rx_dropped); - return storage; - } - EXPORT_SYMBOL(dev_get_stats); -diff --git a/net/core/flow.c b/net/core/flow.c -index e318c7e..168b1d0 100644 ---- a/net/core/flow.c -+++ b/net/core/flow.c -@@ -61,7 +61,7 @@ struct flow_cache { - struct timer_list rnd_timer; - }; - --atomic_t flow_cache_genid = ATOMIC_INIT(0); -+atomic_unchecked_t flow_cache_genid = ATOMIC_INIT(0); - EXPORT_SYMBOL(flow_cache_genid); - static struct flow_cache flow_cache_global; - static struct kmem_cache *flow_cachep __read_mostly; -@@ -86,7 +86,7 @@ static void flow_cache_new_hashrnd(unsigned long arg) - - static int flow_entry_valid(struct flow_cache_entry *fle) - { -- if (atomic_read(&flow_cache_genid) != fle->genid) -+ if (atomic_read_unchecked(&flow_cache_genid) != fle->genid) - return 0; - if (fle->object && !fle->object->ops->check(fle->object)) - return 0; -@@ -259,7 +259,7 @@ flow_cache_lookup(struct net *net, const struct flowi *key, u16 family, u8 dir, - hlist_add_head(&fle->u.hlist, &fcp->hash_table[hash]); - fcp->hash_count++; - } -- } else if (likely(fle->genid == atomic_read(&flow_cache_genid))) { -+ } else if (likely(fle->genid == atomic_read_unchecked(&flow_cache_genid))) { - flo = fle->object; - if (!flo) - goto ret_object; -@@ -280,7 +280,7 @@ nocache: - } - flo = resolver(net, key, family, dir, flo, ctx); - if (fle) { -- fle->genid = atomic_read(&flow_cache_genid); -+ fle->genid = atomic_read_unchecked(&flow_cache_genid); - if (!IS_ERR(flo)) - fle->object = flo; - else -diff --git a/net/core/iovec.c b/net/core/iovec.c -index 7e7aeb0..2a998cb 100644 ---- a/net/core/iovec.c -+++ b/net/core/iovec.c -@@ -42,7 +42,7 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a - if (m->msg_namelen) { - if (mode == VERIFY_READ) { - void __user *namep; -- namep = (void __user __force *) m->msg_name; -+ namep = (void __force_user *) m->msg_name; - err = move_addr_to_kernel(namep, m->msg_namelen, - address); - if (err < 0) -@@ -54,7 +54,7 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a - } - - size = m->msg_iovlen * sizeof(struct iovec); -- if (copy_from_user(iov, (void __user __force *) m->msg_iov, size)) -+ if (copy_from_user(iov, (void __force_user *) m->msg_iov, size)) - return -EFAULT; - - m->msg_iov = iov; -diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c -index 90430b7..0032ec0 100644 ---- a/net/core/rtnetlink.c -+++ b/net/core/rtnetlink.c -@@ -56,7 +56,7 @@ struct rtnl_link { - rtnl_doit_func doit; - rtnl_dumpit_func dumpit; - rtnl_calcit_func calcit; --}; -+} __no_const; - - static DEFINE_MUTEX(rtnl_mutex); - -diff --git a/net/core/scm.c b/net/core/scm.c -index 611c5ef..88f6d6d 100644 ---- a/net/core/scm.c -+++ b/net/core/scm.c -@@ -219,7 +219,7 @@ EXPORT_SYMBOL(__scm_send); - int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data) - { - struct cmsghdr __user *cm -- = (__force struct cmsghdr __user *)msg->msg_control; -+ = (struct cmsghdr __force_user *)msg->msg_control; - struct cmsghdr cmhdr; - int cmlen = CMSG_LEN(len); - int err; -@@ -242,7 +242,7 @@ int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data) - err = -EFAULT; - if (copy_to_user(cm, &cmhdr, sizeof cmhdr)) - goto out; -- if (copy_to_user(CMSG_DATA(cm), data, cmlen - sizeof(struct cmsghdr))) -+ if (copy_to_user((void __force_user *)CMSG_DATA((void __force_kernel *)cm), data, cmlen - sizeof(struct cmsghdr))) - goto out; - cmlen = CMSG_SPACE(len); - if (msg->msg_controllen < cmlen) -@@ -258,7 +258,7 @@ EXPORT_SYMBOL(put_cmsg); - void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm) - { - struct cmsghdr __user *cm -- = (__force struct cmsghdr __user*)msg->msg_control; -+ = (struct cmsghdr __force_user *)msg->msg_control; - - int fdmax = 0; - int fdnum = scm->fp->count; -@@ -278,7 +278,7 @@ void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm) - if (fdnum < fdmax) - fdmax = fdnum; - -- for (i=0, cmfptr=(__force int __user *)CMSG_DATA(cm); i<fdmax; -+ for (i=0, cmfptr=(int __force_user *)CMSG_DATA((void __force_kernel *)cm); i<fdmax; - i++, cmfptr++) - { - int new_fd; -diff --git a/net/core/sock.c b/net/core/sock.c -index b2e14c0..6651b32 100644 ---- a/net/core/sock.c -+++ b/net/core/sock.c -@@ -340,7 +340,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) - struct sk_buff_head *list = &sk->sk_receive_queue; - - if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf) { -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - trace_sock_rcvqueue_full(sk, skb); - return -ENOMEM; - } -@@ -350,7 +350,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) - return err; - - if (!sk_rmem_schedule(sk, skb->truesize)) { -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - return -ENOBUFS; - } - -@@ -370,7 +370,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) - skb_dst_force(skb); - - spin_lock_irqsave(&list->lock, flags); -- skb->dropcount = atomic_read(&sk->sk_drops); -+ skb->dropcount = atomic_read_unchecked(&sk->sk_drops); - __skb_queue_tail(list, skb); - spin_unlock_irqrestore(&list->lock, flags); - -@@ -390,7 +390,7 @@ int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested) - skb->dev = NULL; - - if (sk_rcvqueues_full(sk, skb)) { -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - goto discard_and_relse; - } - if (nested) -@@ -408,7 +408,7 @@ int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested) - mutex_release(&sk->sk_lock.dep_map, 1, _RET_IP_); - } else if (sk_add_backlog(sk, skb)) { - bh_unlock_sock(sk); -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - goto discard_and_relse; - } - -@@ -984,7 +984,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname, - if (len > sizeof(peercred)) - len = sizeof(peercred); - cred_to_ucred(sk->sk_peer_pid, sk->sk_peer_cred, &peercred); -- if (copy_to_user(optval, &peercred, len)) -+ if (len > sizeof(peercred) || copy_to_user(optval, &peercred, len)) - return -EFAULT; - goto lenout; - } -@@ -997,7 +997,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname, - return -ENOTCONN; - if (lv < len) - return -EINVAL; -- if (copy_to_user(optval, address, len)) -+ if (len > sizeof(address) || copy_to_user(optval, address, len)) - return -EFAULT; - goto lenout; - } -@@ -1043,7 +1043,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname, - - if (len > lv) - len = lv; -- if (copy_to_user(optval, &v, len)) -+ if (len > sizeof(v) || copy_to_user(optval, &v, len)) - return -EFAULT; - lenout: - if (put_user(len, optlen)) -@@ -2128,7 +2128,7 @@ void sock_init_data(struct socket *sock, struct sock *sk) - */ - smp_wmb(); - atomic_set(&sk->sk_refcnt, 1); -- atomic_set(&sk->sk_drops, 0); -+ atomic_set_unchecked(&sk->sk_drops, 0); - } - EXPORT_SYMBOL(sock_init_data); - -diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c -index b9868e1..849f809 100644 ---- a/net/core/sock_diag.c -+++ b/net/core/sock_diag.c -@@ -16,20 +16,27 @@ static DEFINE_MUTEX(sock_diag_table_mutex); - - int sock_diag_check_cookie(void *sk, __u32 *cookie) - { -+#ifndef CONFIG_GRKERNSEC_HIDESYM - if ((cookie[0] != INET_DIAG_NOCOOKIE || - cookie[1] != INET_DIAG_NOCOOKIE) && - ((u32)(unsigned long)sk != cookie[0] || - (u32)((((unsigned long)sk) >> 31) >> 1) != cookie[1])) - return -ESTALE; - else -+#endif - return 0; - } - EXPORT_SYMBOL_GPL(sock_diag_check_cookie); - - void sock_diag_save_cookie(void *sk, __u32 *cookie) - { -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ cookie[0] = 0; -+ cookie[1] = 0; -+#else - cookie[0] = (u32)(unsigned long)sk; - cookie[1] = (u32)(((unsigned long)sk >> 31) >> 1); -+#endif - } - EXPORT_SYMBOL_GPL(sock_diag_save_cookie); - -diff --git a/net/decnet/sysctl_net_decnet.c b/net/decnet/sysctl_net_decnet.c -index 02e75d1..9a57a7c 100644 ---- a/net/decnet/sysctl_net_decnet.c -+++ b/net/decnet/sysctl_net_decnet.c -@@ -174,7 +174,7 @@ static int dn_node_address_handler(ctl_table *table, int write, - - if (len > *lenp) len = *lenp; - -- if (copy_to_user(buffer, addr, len)) -+ if (len > sizeof addr || copy_to_user(buffer, addr, len)) - return -EFAULT; - - *lenp = len; -@@ -237,7 +237,7 @@ static int dn_def_dev_handler(ctl_table *table, int write, - - if (len > *lenp) len = *lenp; - -- if (copy_to_user(buffer, devname, len)) -+ if (len > sizeof devname || copy_to_user(buffer, devname, len)) - return -EFAULT; - - *lenp = len; -diff --git a/net/econet/Kconfig b/net/econet/Kconfig -index 39a2d29..f39c0fe 100644 ---- a/net/econet/Kconfig -+++ b/net/econet/Kconfig -@@ -4,7 +4,7 @@ - - config ECONET - tristate "Acorn Econet/AUN protocols (EXPERIMENTAL)" -- depends on EXPERIMENTAL && INET -+ depends on EXPERIMENTAL && INET && BROKEN - ---help--- - Econet is a fairly old and slow networking protocol mainly used by - Acorn computers to access file and print servers. It uses native -diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c -index cbe3a68..a879b75 100644 ---- a/net/ipv4/fib_frontend.c -+++ b/net/ipv4/fib_frontend.c -@@ -969,12 +969,12 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event, - #ifdef CONFIG_IP_ROUTE_MULTIPATH - fib_sync_up(dev); - #endif -- atomic_inc(&net->ipv4.dev_addr_genid); -+ atomic_inc_unchecked(&net->ipv4.dev_addr_genid); - rt_cache_flush(dev_net(dev), -1); - break; - case NETDEV_DOWN: - fib_del_ifaddr(ifa, NULL); -- atomic_inc(&net->ipv4.dev_addr_genid); -+ atomic_inc_unchecked(&net->ipv4.dev_addr_genid); - if (ifa->ifa_dev->ifa_list == NULL) { - /* Last address was deleted from this interface. - * Disable IP. -@@ -1010,7 +1010,7 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo - #ifdef CONFIG_IP_ROUTE_MULTIPATH - fib_sync_up(dev); - #endif -- atomic_inc(&net->ipv4.dev_addr_genid); -+ atomic_inc_unchecked(&net->ipv4.dev_addr_genid); - rt_cache_flush(dev_net(dev), -1); - break; - case NETDEV_DOWN: -diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c -index 8861f91..ab1e3c1 100644 ---- a/net/ipv4/fib_semantics.c -+++ b/net/ipv4/fib_semantics.c -@@ -698,7 +698,7 @@ __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh) - nh->nh_saddr = inet_select_addr(nh->nh_dev, - nh->nh_gw, - nh->nh_parent->fib_scope); -- nh->nh_saddr_genid = atomic_read(&net->ipv4.dev_addr_genid); -+ nh->nh_saddr_genid = atomic_read_unchecked(&net->ipv4.dev_addr_genid); - - return nh->nh_saddr; - } -diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c -index 984ec65..97ac518 100644 ---- a/net/ipv4/inet_hashtables.c -+++ b/net/ipv4/inet_hashtables.c -@@ -18,12 +18,15 @@ - #include <linux/sched.h> - #include <linux/slab.h> - #include <linux/wait.h> -+#include <linux/security.h> - - #include <net/inet_connection_sock.h> - #include <net/inet_hashtables.h> - #include <net/secure_seq.h> - #include <net/ip.h> - -+extern void gr_update_task_in_ip_table(struct task_struct *task, const struct inet_sock *inet); -+ - /* - * Allocate and initialize a new local port bind bucket. - * The bindhash mutex for snum's hash chain must be held here. -@@ -530,6 +533,8 @@ ok: - twrefcnt += inet_twsk_bind_unhash(tw, hinfo); - spin_unlock(&head->lock); - -+ gr_update_task_in_ip_table(current, inet_sk(sk)); -+ - if (tw) { - inet_twsk_deschedule(tw, death_row); - while (twrefcnt) { -diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c -index d4d61b6..b81aec8 100644 ---- a/net/ipv4/inetpeer.c -+++ b/net/ipv4/inetpeer.c -@@ -487,8 +487,8 @@ relookup: - if (p) { - p->daddr = *daddr; - atomic_set(&p->refcnt, 1); -- atomic_set(&p->rid, 0); -- atomic_set(&p->ip_id_count, -+ atomic_set_unchecked(&p->rid, 0); -+ atomic_set_unchecked(&p->ip_id_count, - (daddr->family == AF_INET) ? - secure_ip_id(daddr->addr.a4) : - secure_ipv6_id(daddr->addr.a6)); -diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c -index 3727e23..517f5df 100644 ---- a/net/ipv4/ip_fragment.c -+++ b/net/ipv4/ip_fragment.c -@@ -318,7 +318,7 @@ static inline int ip_frag_too_far(struct ipq *qp) - return 0; - - start = qp->rid; -- end = atomic_inc_return(&peer->rid); -+ end = atomic_inc_return_unchecked(&peer->rid); - qp->rid = end; - - rc = qp->q.fragments && (end - start) > max; -diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c -index 2fd0fba..83fac99 100644 ---- a/net/ipv4/ip_sockglue.c -+++ b/net/ipv4/ip_sockglue.c -@@ -1137,7 +1137,8 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname, - len = min_t(unsigned int, len, opt->optlen); - if (put_user(len, optlen)) - return -EFAULT; -- if (copy_to_user(optval, opt->__data, len)) -+ if ((len > (sizeof(optbuf) - sizeof(struct ip_options))) || -+ copy_to_user(optval, opt->__data, len)) - return -EFAULT; - return 0; - } -@@ -1268,7 +1269,7 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname, - if (sk->sk_type != SOCK_STREAM) - return -ENOPROTOOPT; - -- msg.msg_control = optval; -+ msg.msg_control = (void __force_kernel *)optval; - msg.msg_controllen = len; - msg.msg_flags = flags; - -diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c -index 92ac7e7..13f93d9 100644 ---- a/net/ipv4/ipconfig.c -+++ b/net/ipv4/ipconfig.c -@@ -321,7 +321,7 @@ static int __init ic_devinet_ioctl(unsigned int cmd, struct ifreq *arg) - - mm_segment_t oldfs = get_fs(); - set_fs(get_ds()); -- res = devinet_ioctl(&init_net, cmd, (struct ifreq __user *) arg); -+ res = devinet_ioctl(&init_net, cmd, (struct ifreq __force_user *) arg); - set_fs(oldfs); - return res; - } -@@ -332,7 +332,7 @@ static int __init ic_dev_ioctl(unsigned int cmd, struct ifreq *arg) - - mm_segment_t oldfs = get_fs(); - set_fs(get_ds()); -- res = dev_ioctl(&init_net, cmd, (struct ifreq __user *) arg); -+ res = dev_ioctl(&init_net, cmd, (struct ifreq __force_user *) arg); - set_fs(oldfs); - return res; - } -@@ -343,7 +343,7 @@ static int __init ic_route_ioctl(unsigned int cmd, struct rtentry *arg) - - mm_segment_t oldfs = get_fs(); - set_fs(get_ds()); -- res = ip_rt_ioctl(&init_net, cmd, (void __user *) arg); -+ res = ip_rt_ioctl(&init_net, cmd, (void __force_user *) arg); - set_fs(oldfs); - return res; - } -diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c -index 50009c7..5996a9f 100644 ---- a/net/ipv4/ping.c -+++ b/net/ipv4/ping.c -@@ -838,7 +838,7 @@ static void ping_format_sock(struct sock *sp, struct seq_file *f, - sk_rmem_alloc_get(sp), - 0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp), - atomic_read(&sp->sk_refcnt), sp, -- atomic_read(&sp->sk_drops), len); -+ atomic_read_unchecked(&sp->sk_drops), len); - } - - static int ping_seq_show(struct seq_file *seq, void *v) -diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c -index bbd604c..4d5469c 100644 ---- a/net/ipv4/raw.c -+++ b/net/ipv4/raw.c -@@ -304,7 +304,7 @@ static int raw_rcv_skb(struct sock * sk, struct sk_buff * skb) - int raw_rcv(struct sock *sk, struct sk_buff *skb) - { - if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb)) { -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - kfree_skb(skb); - return NET_RX_DROP; - } -@@ -740,16 +740,20 @@ static int raw_init(struct sock *sk) - - static int raw_seticmpfilter(struct sock *sk, char __user *optval, int optlen) - { -+ struct icmp_filter filter; -+ - if (optlen > sizeof(struct icmp_filter)) - optlen = sizeof(struct icmp_filter); -- if (copy_from_user(&raw_sk(sk)->filter, optval, optlen)) -+ if (copy_from_user(&filter, optval, optlen)) - return -EFAULT; -+ raw_sk(sk)->filter = filter; - return 0; - } - - static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *optlen) - { - int len, ret = -EFAULT; -+ struct icmp_filter filter; - - if (get_user(len, optlen)) - goto out; -@@ -759,8 +763,8 @@ static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *o - if (len > sizeof(struct icmp_filter)) - len = sizeof(struct icmp_filter); - ret = -EFAULT; -- if (put_user(len, optlen) || -- copy_to_user(optval, &raw_sk(sk)->filter, len)) -+ filter = raw_sk(sk)->filter; -+ if (put_user(len, optlen) || len > sizeof filter || copy_to_user(optval, &filter, len)) - goto out; - ret = 0; - out: return ret; -@@ -988,7 +992,13 @@ static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i) - sk_wmem_alloc_get(sp), - sk_rmem_alloc_get(sp), - 0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp), -- atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops)); -+ atomic_read(&sp->sk_refcnt), -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ NULL, -+#else -+ sp, -+#endif -+ atomic_read_unchecked(&sp->sk_drops)); - } - - static int raw_seq_show(struct seq_file *seq, void *v) -diff --git a/net/ipv4/route.c b/net/ipv4/route.c -index 167ea10..4b15883 100644 ---- a/net/ipv4/route.c -+++ b/net/ipv4/route.c -@@ -312,7 +312,7 @@ static inline unsigned int rt_hash(__be32 daddr, __be32 saddr, int idx, - - static inline int rt_genid(struct net *net) - { -- return atomic_read(&net->ipv4.rt_genid); -+ return atomic_read_unchecked(&net->ipv4.rt_genid); - } - - #ifdef CONFIG_PROC_FS -@@ -936,7 +936,7 @@ static void rt_cache_invalidate(struct net *net) - unsigned char shuffle; - - get_random_bytes(&shuffle, sizeof(shuffle)); -- atomic_add(shuffle + 1U, &net->ipv4.rt_genid); -+ atomic_add_unchecked(shuffle + 1U, &net->ipv4.rt_genid); - inetpeer_invalidate_tree(AF_INET); - } - -@@ -3009,7 +3009,7 @@ static int rt_fill_info(struct net *net, - error = rt->dst.error; - if (peer) { - inet_peer_refcheck(rt->peer); -- id = atomic_read(&peer->ip_id_count) & 0xffff; -+ id = atomic_read_unchecked(&peer->ip_id_count) & 0xffff; - if (peer->tcp_ts_stamp) { - ts = peer->tcp_ts; - tsage = get_seconds() - peer->tcp_ts_stamp; -diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c -index 0cb86ce..8e7fda8 100644 ---- a/net/ipv4/tcp_ipv4.c -+++ b/net/ipv4/tcp_ipv4.c -@@ -90,6 +90,10 @@ int sysctl_tcp_low_latency __read_mostly; - EXPORT_SYMBOL(sysctl_tcp_low_latency); - - -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+extern int grsec_enable_blackhole; -+#endif -+ - #ifdef CONFIG_TCP_MD5SIG - static int tcp_v4_md5_hash_hdr(char *md5_hash, const struct tcp_md5sig_key *key, - __be32 daddr, __be32 saddr, const struct tcphdr *th); -@@ -1641,6 +1645,9 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb) - return 0; - - reset: -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+ if (!grsec_enable_blackhole) -+#endif - tcp_v4_send_reset(rsk, skb); - discard: - kfree_skb(skb); -@@ -1703,12 +1710,19 @@ int tcp_v4_rcv(struct sk_buff *skb) - TCP_SKB_CB(skb)->sacked = 0; - - sk = __inet_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest); -- if (!sk) -+ if (!sk) { -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+ ret = 1; -+#endif - goto no_tcp_socket; -- -+ } - process: -- if (sk->sk_state == TCP_TIME_WAIT) -+ if (sk->sk_state == TCP_TIME_WAIT) { -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+ ret = 2; -+#endif - goto do_time_wait; -+ } - - if (unlikely(iph->ttl < inet_sk(sk)->min_ttl)) { - NET_INC_STATS_BH(net, LINUX_MIB_TCPMINTTLDROP); -@@ -1758,6 +1772,10 @@ no_tcp_socket: - bad_packet: - TCP_INC_STATS_BH(net, TCP_MIB_INERRS); - } else { -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+ if (!grsec_enable_blackhole || (ret == 1 && -+ (skb->dev->flags & IFF_LOOPBACK))) -+#endif - tcp_v4_send_reset(NULL, skb); - } - -@@ -2419,7 +2437,11 @@ static void get_openreq4(const struct sock *sk, const struct request_sock *req, - 0, /* non standard timer */ - 0, /* open_requests have no inode */ - atomic_read(&sk->sk_refcnt), -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ NULL, -+#else - req, -+#endif - len); - } - -@@ -2469,7 +2491,12 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i, int *len) - sock_i_uid(sk), - icsk->icsk_probes_out, - sock_i_ino(sk), -- atomic_read(&sk->sk_refcnt), sk, -+ atomic_read(&sk->sk_refcnt), -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ NULL, -+#else -+ sk, -+#endif - jiffies_to_clock_t(icsk->icsk_rto), - jiffies_to_clock_t(icsk->icsk_ack.ato), - (icsk->icsk_ack.quick << 1) | icsk->icsk_ack.pingpong, -@@ -2497,7 +2524,13 @@ static void get_timewait4_sock(const struct inet_timewait_sock *tw, - " %02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %pK%n", - i, src, srcp, dest, destp, tw->tw_substate, 0, 0, - 3, jiffies_to_clock_t(ttd), 0, 0, 0, 0, -- atomic_read(&tw->tw_refcnt), tw, len); -+ atomic_read(&tw->tw_refcnt), -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ NULL, -+#else -+ tw, -+#endif -+ len); - } - - #define TMPSZ 150 -diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c -index 3cabafb..640525b 100644 ---- a/net/ipv4/tcp_minisocks.c -+++ b/net/ipv4/tcp_minisocks.c -@@ -27,6 +27,10 @@ - #include <net/inet_common.h> - #include <net/xfrm.h> - -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+extern int grsec_enable_blackhole; -+#endif -+ - int sysctl_tcp_syncookies __read_mostly = 1; - EXPORT_SYMBOL(sysctl_tcp_syncookies); - -@@ -753,6 +757,10 @@ listen_overflow: - - embryonic_reset: - NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_EMBRYONICRSTS); -+ -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+ if (!grsec_enable_blackhole) -+#endif - if (!(flg & TCP_FLAG_RST)) - req->rsk_ops->send_reset(sk, skb); - -diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c -index a981cdc..48f4c3a 100644 ---- a/net/ipv4/tcp_probe.c -+++ b/net/ipv4/tcp_probe.c -@@ -204,7 +204,7 @@ static ssize_t tcpprobe_read(struct file *file, char __user *buf, - if (cnt + width >= len) - break; - -- if (copy_to_user(buf + cnt, tbuf, width)) -+ if (width > sizeof tbuf || copy_to_user(buf + cnt, tbuf, width)) - return -EFAULT; - cnt += width; - } -diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c -index 34d4a02..3b57f86 100644 ---- a/net/ipv4/tcp_timer.c -+++ b/net/ipv4/tcp_timer.c -@@ -22,6 +22,10 @@ - #include <linux/gfp.h> - #include <net/tcp.h> - -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+extern int grsec_lastack_retries; -+#endif -+ - int sysctl_tcp_syn_retries __read_mostly = TCP_SYN_RETRIES; - int sysctl_tcp_synack_retries __read_mostly = TCP_SYNACK_RETRIES; - int sysctl_tcp_keepalive_time __read_mostly = TCP_KEEPALIVE_TIME; -@@ -196,6 +200,13 @@ static int tcp_write_timeout(struct sock *sk) - } - } - -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+ if ((sk->sk_state == TCP_LAST_ACK) && -+ (grsec_lastack_retries > 0) && -+ (grsec_lastack_retries < retry_until)) -+ retry_until = grsec_lastack_retries; -+#endif -+ - if (retransmits_timed_out(sk, retry_until, - syn_set ? 0 : icsk->icsk_user_timeout, syn_set)) { - /* Has it gone just too far? */ -diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c -index fe14105..0618260 100644 ---- a/net/ipv4/udp.c -+++ b/net/ipv4/udp.c -@@ -87,6 +87,7 @@ - #include <linux/types.h> - #include <linux/fcntl.h> - #include <linux/module.h> -+#include <linux/security.h> - #include <linux/socket.h> - #include <linux/sockios.h> - #include <linux/igmp.h> -@@ -109,6 +110,10 @@ - #include <trace/events/udp.h> - #include "udp_impl.h" - -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+extern int grsec_enable_blackhole; -+#endif -+ - struct udp_table udp_table __read_mostly; - EXPORT_SYMBOL(udp_table); - -@@ -567,6 +572,9 @@ found: - return s; - } - -+extern int gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb); -+extern int gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr); -+ - /* - * This routine is called by the ICMP module when it gets some - * sort of error condition. If err < 0 then the socket should -@@ -858,9 +866,18 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, - dport = usin->sin_port; - if (dport == 0) - return -EINVAL; -+ -+ err = gr_search_udp_sendmsg(sk, usin); -+ if (err) -+ return err; - } else { - if (sk->sk_state != TCP_ESTABLISHED) - return -EDESTADDRREQ; -+ -+ err = gr_search_udp_sendmsg(sk, NULL); -+ if (err) -+ return err; -+ - daddr = inet->inet_daddr; - dport = inet->inet_dport; - /* Open fast path for connected socket. -@@ -1102,7 +1119,7 @@ static unsigned int first_packet_length(struct sock *sk) - udp_lib_checksum_complete(skb)) { - UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, - IS_UDPLITE(sk)); -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - __skb_unlink(skb, rcvq); - __skb_queue_tail(&list_kill, skb); - } -@@ -1188,6 +1205,10 @@ try_again: - if (!skb) - goto out; - -+ err = gr_search_udp_recvmsg(sk, skb); -+ if (err) -+ goto out_free; -+ - ulen = skb->len - sizeof(struct udphdr); - copied = len; - if (copied > ulen) -@@ -1489,7 +1510,7 @@ int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) - - drop: - UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite); -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - kfree_skb(skb); - return -1; - } -@@ -1508,7 +1529,7 @@ static void flush_stack(struct sock **stack, unsigned int count, - skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC); - - if (!skb1) { -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS, - IS_UDPLITE(sk)); - UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, -@@ -1677,6 +1698,9 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable, - goto csum_error; - - UDP_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE); -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+ if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK)) -+#endif - icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0); - - /* -@@ -2094,8 +2118,13 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f, - sk_wmem_alloc_get(sp), - sk_rmem_alloc_get(sp), - 0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp), -- atomic_read(&sp->sk_refcnt), sp, -- atomic_read(&sp->sk_drops), len); -+ atomic_read(&sp->sk_refcnt), -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ NULL, -+#else -+ sp, -+#endif -+ atomic_read_unchecked(&sp->sk_drops), len); - } - - int udp4_seq_show(struct seq_file *seq, void *v) -diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c -index 7d5cb97..c56564f 100644 ---- a/net/ipv6/addrconf.c -+++ b/net/ipv6/addrconf.c -@@ -2142,7 +2142,7 @@ int addrconf_set_dstaddr(struct net *net, void __user *arg) - p.iph.ihl = 5; - p.iph.protocol = IPPROTO_IPV6; - p.iph.ttl = 64; -- ifr.ifr_ifru.ifru_data = (__force void __user *)&p; -+ ifr.ifr_ifru.ifru_data = (void __force_user *)&p; - - if (ops->ndo_do_ioctl) { - mm_segment_t oldfs = get_fs(); -diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c -index 02dd203..e03fcc9 100644 ---- a/net/ipv6/inet6_connection_sock.c -+++ b/net/ipv6/inet6_connection_sock.c -@@ -178,7 +178,7 @@ void __inet6_csk_dst_store(struct sock *sk, struct dst_entry *dst, - #ifdef CONFIG_XFRM - { - struct rt6_info *rt = (struct rt6_info *)dst; -- rt->rt6i_flow_cache_genid = atomic_read(&flow_cache_genid); -+ rt->rt6i_flow_cache_genid = atomic_read_unchecked(&flow_cache_genid); - } - #endif - } -@@ -193,7 +193,7 @@ struct dst_entry *__inet6_csk_dst_check(struct sock *sk, u32 cookie) - #ifdef CONFIG_XFRM - if (dst) { - struct rt6_info *rt = (struct rt6_info *)dst; -- if (rt->rt6i_flow_cache_genid != atomic_read(&flow_cache_genid)) { -+ if (rt->rt6i_flow_cache_genid != atomic_read_unchecked(&flow_cache_genid)) { - __sk_dst_reset(sk); - dst = NULL; - } -diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c -index 63dd1f8..e7f53ca 100644 ---- a/net/ipv6/ipv6_sockglue.c -+++ b/net/ipv6/ipv6_sockglue.c -@@ -990,7 +990,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname, - if (sk->sk_type != SOCK_STREAM) - return -ENOPROTOOPT; - -- msg.msg_control = optval; -+ msg.msg_control = (void __force_kernel *)optval; - msg.msg_controllen = len; - msg.msg_flags = flags; - -diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c -index 5bddea7..82d9d67 100644 ---- a/net/ipv6/raw.c -+++ b/net/ipv6/raw.c -@@ -377,7 +377,7 @@ static inline int rawv6_rcv_skb(struct sock *sk, struct sk_buff *skb) - { - if ((raw6_sk(sk)->checksum || rcu_access_pointer(sk->sk_filter)) && - skb_checksum_complete(skb)) { -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - kfree_skb(skb); - return NET_RX_DROP; - } -@@ -405,7 +405,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb) - struct raw6_sock *rp = raw6_sk(sk); - - if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) { -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - kfree_skb(skb); - return NET_RX_DROP; - } -@@ -429,7 +429,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb) - - if (inet->hdrincl) { - if (skb_checksum_complete(skb)) { -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - kfree_skb(skb); - return NET_RX_DROP; - } -@@ -602,7 +602,7 @@ out: - return err; - } - --static int rawv6_send_hdrinc(struct sock *sk, void *from, int length, -+static int rawv6_send_hdrinc(struct sock *sk, void *from, unsigned int length, - struct flowi6 *fl6, struct dst_entry **dstp, - unsigned int flags) - { -@@ -914,12 +914,15 @@ do_confirm: - static int rawv6_seticmpfilter(struct sock *sk, int level, int optname, - char __user *optval, int optlen) - { -+ struct icmp6_filter filter; -+ - switch (optname) { - case ICMPV6_FILTER: - if (optlen > sizeof(struct icmp6_filter)) - optlen = sizeof(struct icmp6_filter); -- if (copy_from_user(&raw6_sk(sk)->filter, optval, optlen)) -+ if (copy_from_user(&filter, optval, optlen)) - return -EFAULT; -+ raw6_sk(sk)->filter = filter; - return 0; - default: - return -ENOPROTOOPT; -@@ -932,6 +935,7 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname, - char __user *optval, int __user *optlen) - { - int len; -+ struct icmp6_filter filter; - - switch (optname) { - case ICMPV6_FILTER: -@@ -943,7 +947,8 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname, - len = sizeof(struct icmp6_filter); - if (put_user(len, optlen)) - return -EFAULT; -- if (copy_to_user(optval, &raw6_sk(sk)->filter, len)) -+ filter = raw6_sk(sk)->filter; -+ if (len > sizeof filter || copy_to_user(optval, &filter, len)) - return -EFAULT; - return 0; - default: -@@ -1250,7 +1255,13 @@ static void raw6_sock_seq_show(struct seq_file *seq, struct sock *sp, int i) - 0, 0L, 0, - sock_i_uid(sp), 0, - sock_i_ino(sp), -- atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops)); -+ atomic_read(&sp->sk_refcnt), -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ NULL, -+#else -+ sp, -+#endif -+ atomic_read_unchecked(&sp->sk_drops)); - } - - static int raw6_seq_show(struct seq_file *seq, void *v) -diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c -index 98256cf..7f16dbd 100644 ---- a/net/ipv6/tcp_ipv6.c -+++ b/net/ipv6/tcp_ipv6.c -@@ -94,6 +94,10 @@ static struct tcp_md5sig_key *tcp_v6_md5_do_lookup(struct sock *sk, - } - #endif - -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+extern int grsec_enable_blackhole; -+#endif -+ - static void tcp_v6_hash(struct sock *sk) - { - if (sk->sk_state != TCP_CLOSE) { -@@ -1542,6 +1546,9 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb) - return 0; - - reset: -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+ if (!grsec_enable_blackhole) -+#endif - tcp_v6_send_reset(sk, skb); - discard: - if (opt_skb) -@@ -1623,12 +1630,20 @@ static int tcp_v6_rcv(struct sk_buff *skb) - TCP_SKB_CB(skb)->sacked = 0; - - sk = __inet6_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest); -- if (!sk) -+ if (!sk) { -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+ ret = 1; -+#endif - goto no_tcp_socket; -+ } - - process: -- if (sk->sk_state == TCP_TIME_WAIT) -+ if (sk->sk_state == TCP_TIME_WAIT) { -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+ ret = 2; -+#endif - goto do_time_wait; -+ } - - if (hdr->hop_limit < inet6_sk(sk)->min_hopcount) { - NET_INC_STATS_BH(net, LINUX_MIB_TCPMINTTLDROP); -@@ -1676,6 +1691,10 @@ no_tcp_socket: - bad_packet: - TCP_INC_STATS_BH(net, TCP_MIB_INERRS); - } else { -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+ if (!grsec_enable_blackhole || (ret == 1 && -+ (skb->dev->flags & IFF_LOOPBACK))) -+#endif - tcp_v6_send_reset(NULL, skb); - } - -@@ -1930,7 +1949,13 @@ static void get_openreq6(struct seq_file *seq, - uid, - 0, /* non standard timer */ - 0, /* open_requests have no inode */ -- 0, req); -+ 0, -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ NULL -+#else -+ req -+#endif -+ ); - } - - static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i) -@@ -1980,7 +2005,12 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i) - sock_i_uid(sp), - icsk->icsk_probes_out, - sock_i_ino(sp), -- atomic_read(&sp->sk_refcnt), sp, -+ atomic_read(&sp->sk_refcnt), -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ NULL, -+#else -+ sp, -+#endif - jiffies_to_clock_t(icsk->icsk_rto), - jiffies_to_clock_t(icsk->icsk_ack.ato), - (icsk->icsk_ack.quick << 1 ) | icsk->icsk_ack.pingpong, -@@ -2015,7 +2045,13 @@ static void get_timewait6_sock(struct seq_file *seq, - dest->s6_addr32[2], dest->s6_addr32[3], destp, - tw->tw_substate, 0, 0, - 3, jiffies_to_clock_t(ttd), 0, 0, 0, 0, -- atomic_read(&tw->tw_refcnt), tw); -+ atomic_read(&tw->tw_refcnt), -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ NULL -+#else -+ tw -+#endif -+ ); - } - - static int tcp6_seq_show(struct seq_file *seq, void *v) -diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c -index 37b0699..d323408 100644 ---- a/net/ipv6/udp.c -+++ b/net/ipv6/udp.c -@@ -50,6 +50,10 @@ - #include <linux/seq_file.h> - #include "udp_impl.h" - -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+extern int grsec_enable_blackhole; -+#endif -+ - int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2) - { - const struct in6_addr *sk_rcv_saddr6 = &inet6_sk(sk)->rcv_saddr; -@@ -551,7 +555,7 @@ int udpv6_queue_rcv_skb(struct sock * sk, struct sk_buff *skb) - - return 0; - drop: -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - drop_no_sk_drops_inc: - UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite); - kfree_skb(skb); -@@ -627,7 +631,7 @@ static void flush_stack(struct sock **stack, unsigned int count, - continue; - } - drop: -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - UDP6_INC_STATS_BH(sock_net(sk), - UDP_MIB_RCVBUFERRORS, IS_UDPLITE(sk)); - UDP6_INC_STATS_BH(sock_net(sk), -@@ -782,6 +786,9 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable, - UDP6_INC_STATS_BH(net, UDP_MIB_NOPORTS, - proto == IPPROTO_UDPLITE); - -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+ if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK)) -+#endif - icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0); - - kfree_skb(skb); -@@ -798,7 +805,7 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable, - if (!sock_owned_by_user(sk)) - udpv6_queue_rcv_skb(sk, skb); - else if (sk_add_backlog(sk, skb)) { -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - bh_unlock_sock(sk); - sock_put(sk); - goto discard; -@@ -1411,8 +1418,13 @@ static void udp6_sock_seq_show(struct seq_file *seq, struct sock *sp, int bucket - 0, 0L, 0, - sock_i_uid(sp), 0, - sock_i_ino(sp), -- atomic_read(&sp->sk_refcnt), sp, -- atomic_read(&sp->sk_drops)); -+ atomic_read(&sp->sk_refcnt), -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ NULL, -+#else -+ sp, -+#endif -+ atomic_read_unchecked(&sp->sk_drops)); - } - - int udp6_seq_show(struct seq_file *seq, void *v) -diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c -index 6b9d5a0..4dffaf1 100644 ---- a/net/irda/ircomm/ircomm_tty.c -+++ b/net/irda/ircomm/ircomm_tty.c -@@ -281,16 +281,16 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self, - add_wait_queue(&self->open_wait, &wait); - - IRDA_DEBUG(2, "%s(%d):block_til_ready before block on %s open_count=%d\n", -- __FILE__,__LINE__, tty->driver->name, self->open_count ); -+ __FILE__,__LINE__, tty->driver->name, local_read(&self->open_count) ); - - /* As far as I can see, we protect open_count - Jean II */ - spin_lock_irqsave(&self->spinlock, flags); - if (!tty_hung_up_p(filp)) { - extra_count = 1; -- self->open_count--; -+ local_dec(&self->open_count); - } - spin_unlock_irqrestore(&self->spinlock, flags); -- self->blocked_open++; -+ local_inc(&self->blocked_open); - - while (1) { - if (tty->termios->c_cflag & CBAUD) { -@@ -330,7 +330,7 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self, - } - - IRDA_DEBUG(1, "%s(%d):block_til_ready blocking on %s open_count=%d\n", -- __FILE__,__LINE__, tty->driver->name, self->open_count ); -+ __FILE__,__LINE__, tty->driver->name, local_read(&self->open_count) ); - - schedule(); - } -@@ -341,13 +341,13 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self, - if (extra_count) { - /* ++ is not atomic, so this should be protected - Jean II */ - spin_lock_irqsave(&self->spinlock, flags); -- self->open_count++; -+ local_inc(&self->open_count); - spin_unlock_irqrestore(&self->spinlock, flags); - } -- self->blocked_open--; -+ local_dec(&self->blocked_open); - - IRDA_DEBUG(1, "%s(%d):block_til_ready after blocking on %s open_count=%d\n", -- __FILE__,__LINE__, tty->driver->name, self->open_count); -+ __FILE__,__LINE__, tty->driver->name, local_read(&self->open_count)); - - if (!retval) - self->flags |= ASYNC_NORMAL_ACTIVE; -@@ -412,14 +412,14 @@ static int ircomm_tty_open(struct tty_struct *tty, struct file *filp) - } - /* ++ is not atomic, so this should be protected - Jean II */ - spin_lock_irqsave(&self->spinlock, flags); -- self->open_count++; -+ local_inc(&self->open_count); - - tty->driver_data = self; - self->tty = tty; - spin_unlock_irqrestore(&self->spinlock, flags); - - IRDA_DEBUG(1, "%s(), %s%d, count = %d\n", __func__ , tty->driver->name, -- self->line, self->open_count); -+ self->line, local_read(&self->open_count)); - - /* Not really used by us, but lets do it anyway */ - self->tty->low_latency = (self->flags & ASYNC_LOW_LATENCY) ? 1 : 0; -@@ -505,7 +505,7 @@ static void ircomm_tty_close(struct tty_struct *tty, struct file *filp) - return; - } - -- if ((tty->count == 1) && (self->open_count != 1)) { -+ if ((tty->count == 1) && (local_read(&self->open_count) != 1)) { - /* - * Uh, oh. tty->count is 1, which means that the tty - * structure will be freed. state->count should always -@@ -515,16 +515,16 @@ static void ircomm_tty_close(struct tty_struct *tty, struct file *filp) - */ - IRDA_DEBUG(0, "%s(), bad serial port count; " - "tty->count is 1, state->count is %d\n", __func__ , -- self->open_count); -- self->open_count = 1; -+ local_read(&self->open_count)); -+ local_set(&self->open_count, 1); - } - -- if (--self->open_count < 0) { -+ if (local_dec_return(&self->open_count) < 0) { - IRDA_ERROR("%s(), bad serial port count for ttys%d: %d\n", -- __func__, self->line, self->open_count); -- self->open_count = 0; -+ __func__, self->line, local_read(&self->open_count)); -+ local_set(&self->open_count, 0); - } -- if (self->open_count) { -+ if (local_read(&self->open_count)) { - spin_unlock_irqrestore(&self->spinlock, flags); - - IRDA_DEBUG(0, "%s(), open count > 0\n", __func__ ); -@@ -556,7 +556,7 @@ static void ircomm_tty_close(struct tty_struct *tty, struct file *filp) - tty->closing = 0; - self->tty = NULL; - -- if (self->blocked_open) { -+ if (local_read(&self->blocked_open)) { - if (self->close_delay) - schedule_timeout_interruptible(self->close_delay); - wake_up_interruptible(&self->open_wait); -@@ -1008,7 +1008,7 @@ static void ircomm_tty_hangup(struct tty_struct *tty) - spin_lock_irqsave(&self->spinlock, flags); - self->flags &= ~ASYNC_NORMAL_ACTIVE; - self->tty = NULL; -- self->open_count = 0; -+ local_set(&self->open_count, 0); - spin_unlock_irqrestore(&self->spinlock, flags); - - wake_up_interruptible(&self->open_wait); -@@ -1355,7 +1355,7 @@ static void ircomm_tty_line_info(struct ircomm_tty_cb *self, struct seq_file *m) - seq_putc(m, '\n'); - - seq_printf(m, "Role: %s\n", self->client ? "client" : "server"); -- seq_printf(m, "Open count: %d\n", self->open_count); -+ seq_printf(m, "Open count: %d\n", local_read(&self->open_count)); - seq_printf(m, "Max data size: %d\n", self->max_data_size); - seq_printf(m, "Max header size: %d\n", self->max_header_size); - -diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c -index 07d7d55..541de95 100644 ---- a/net/iucv/af_iucv.c -+++ b/net/iucv/af_iucv.c -@@ -783,10 +783,10 @@ static int iucv_sock_autobind(struct sock *sk) - - write_lock_bh(&iucv_sk_list.lock); - -- sprintf(name, "%08x", atomic_inc_return(&iucv_sk_list.autobind_name)); -+ sprintf(name, "%08x", atomic_inc_return_unchecked(&iucv_sk_list.autobind_name)); - while (__iucv_get_sock_by_name(name)) { - sprintf(name, "%08x", -- atomic_inc_return(&iucv_sk_list.autobind_name)); -+ atomic_inc_return_unchecked(&iucv_sk_list.autobind_name)); - } - - write_unlock_bh(&iucv_sk_list.lock); -diff --git a/net/key/af_key.c b/net/key/af_key.c -index 7e5d927..cdbb54e 100644 ---- a/net/key/af_key.c -+++ b/net/key/af_key.c -@@ -3016,10 +3016,10 @@ static int pfkey_send_policy_notify(struct xfrm_policy *xp, int dir, const struc - static u32 get_acqseq(void) - { - u32 res; -- static atomic_t acqseq; -+ static atomic_unchecked_t acqseq; - - do { -- res = atomic_inc_return(&acqseq); -+ res = atomic_inc_return_unchecked(&acqseq); - } while (!res); - return res; - } -diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h -index db8fae5..ff070cd 100644 ---- a/net/mac80211/ieee80211_i.h -+++ b/net/mac80211/ieee80211_i.h -@@ -28,6 +28,7 @@ - #include <net/ieee80211_radiotap.h> - #include <net/cfg80211.h> - #include <net/mac80211.h> -+#include <asm/local.h> - #include "key.h" - #include "sta_info.h" - -@@ -842,7 +843,7 @@ struct ieee80211_local { - /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */ - spinlock_t queue_stop_reason_lock; - -- int open_count; -+ local_t open_count; - int monitors, cooked_mntrs; - /* number of interfaces with corresponding FIF_ flags */ - int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll, -diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c -index 48f937e..4ccd7b8 100644 ---- a/net/mac80211/iface.c -+++ b/net/mac80211/iface.c -@@ -222,7 +222,7 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up) - break; - } - -- if (local->open_count == 0) { -+ if (local_read(&local->open_count) == 0) { - res = drv_start(local); - if (res) - goto err_del_bss; -@@ -246,7 +246,7 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up) - memcpy(dev->perm_addr, dev->dev_addr, ETH_ALEN); - - if (!is_valid_ether_addr(dev->dev_addr)) { -- if (!local->open_count) -+ if (!local_read(&local->open_count)) - drv_stop(local); - return -EADDRNOTAVAIL; - } -@@ -347,7 +347,7 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up) - mutex_unlock(&local->mtx); - - if (coming_up) -- local->open_count++; -+ local_inc(&local->open_count); - - if (hw_reconf_flags) - ieee80211_hw_config(local, hw_reconf_flags); -@@ -360,7 +360,7 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up) - err_del_interface: - drv_remove_interface(local, sdata); - err_stop: -- if (!local->open_count) -+ if (!local_read(&local->open_count)) - drv_stop(local); - err_del_bss: - sdata->bss = NULL; -@@ -491,7 +491,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, - } - - if (going_down) -- local->open_count--; -+ local_dec(&local->open_count); - - switch (sdata->vif.type) { - case NL80211_IFTYPE_AP_VLAN: -@@ -562,7 +562,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, - - ieee80211_recalc_ps(local, -1); - -- if (local->open_count == 0) { -+ if (local_read(&local->open_count) == 0) { - if (local->ops->napi_poll) - napi_disable(&local->napi); - ieee80211_clear_tx_pending(local); -diff --git a/net/mac80211/main.c b/net/mac80211/main.c -index 1633648..d45ebfa 100644 ---- a/net/mac80211/main.c -+++ b/net/mac80211/main.c -@@ -164,7 +164,7 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) - local->hw.conf.power_level = power; - } - -- if (changed && local->open_count) { -+ if (changed && local_read(&local->open_count)) { - ret = drv_config(local, changed); - /* - * Goal: -diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c -index ef8eba1..5c63952 100644 ---- a/net/mac80211/pm.c -+++ b/net/mac80211/pm.c -@@ -34,7 +34,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) - struct ieee80211_sub_if_data *sdata; - struct sta_info *sta; - -- if (!local->open_count) -+ if (!local_read(&local->open_count)) - goto suspend; - - ieee80211_scan_cancel(local); -@@ -72,7 +72,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) - cancel_work_sync(&local->dynamic_ps_enable_work); - del_timer_sync(&local->dynamic_ps_timer); - -- local->wowlan = wowlan && local->open_count; -+ local->wowlan = wowlan && local_read(&local->open_count); - if (local->wowlan) { - int err = drv_suspend(local, wowlan); - if (err < 0) { -@@ -128,7 +128,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) - } - - /* stop hardware - this must stop RX */ -- if (local->open_count) -+ if (local_read(&local->open_count)) - ieee80211_stop_device(local); - - suspend: -diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c -index 3313c11..bec9f17 100644 ---- a/net/mac80211/rate.c -+++ b/net/mac80211/rate.c -@@ -494,7 +494,7 @@ int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local, - - ASSERT_RTNL(); - -- if (local->open_count) -+ if (local_read(&local->open_count)) - return -EBUSY; - - if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) { -diff --git a/net/mac80211/rc80211_pid_debugfs.c b/net/mac80211/rc80211_pid_debugfs.c -index c97a065..ff61928 100644 ---- a/net/mac80211/rc80211_pid_debugfs.c -+++ b/net/mac80211/rc80211_pid_debugfs.c -@@ -193,7 +193,7 @@ static ssize_t rate_control_pid_events_read(struct file *file, char __user *buf, - - spin_unlock_irqrestore(&events->lock, status); - -- if (copy_to_user(buf, pb, p)) -+ if (p > sizeof(pb) || copy_to_user(buf, pb, p)) - return -EFAULT; - - return p; -diff --git a/net/mac80211/util.c b/net/mac80211/util.c -index eb9d7c0..d34b832 100644 ---- a/net/mac80211/util.c -+++ b/net/mac80211/util.c -@@ -1179,7 +1179,7 @@ int ieee80211_reconfig(struct ieee80211_local *local) - } - #endif - /* everything else happens only if HW was up & running */ -- if (!local->open_count) -+ if (!local_read(&local->open_count)) - goto wake_up; - - /* -diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig -index 0c6f67e..d02cdfc 100644 ---- a/net/netfilter/Kconfig -+++ b/net/netfilter/Kconfig -@@ -836,6 +836,16 @@ config NETFILTER_XT_MATCH_ESP - - To compile it as a module, choose M here. If unsure, say N. - -+config NETFILTER_XT_MATCH_GRADM -+ tristate '"gradm" match support' -+ depends on NETFILTER_XTABLES && NETFILTER_ADVANCED -+ depends on GRKERNSEC && !GRKERNSEC_NO_RBAC -+ ---help--- -+ The gradm match allows to match on grsecurity RBAC being enabled. -+ It is useful when iptables rules are applied early on bootup to -+ prevent connections to the machine (except from a trusted host) -+ while the RBAC system is disabled. -+ - config NETFILTER_XT_MATCH_HASHLIMIT - tristate '"hashlimit" match support' - depends on (IP6_NF_IPTABLES || IP6_NF_IPTABLES=n) -diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile -index ca36765..0882e7c 100644 ---- a/net/netfilter/Makefile -+++ b/net/netfilter/Makefile -@@ -86,6 +86,7 @@ obj-$(CONFIG_NETFILTER_XT_MATCH_DEVGROUP) += xt_devgroup.o - obj-$(CONFIG_NETFILTER_XT_MATCH_DSCP) += xt_dscp.o - obj-$(CONFIG_NETFILTER_XT_MATCH_ECN) += xt_ecn.o - obj-$(CONFIG_NETFILTER_XT_MATCH_ESP) += xt_esp.o -+obj-$(CONFIG_NETFILTER_XT_MATCH_GRADM) += xt_gradm.o - obj-$(CONFIG_NETFILTER_XT_MATCH_HASHLIMIT) += xt_hashlimit.o - obj-$(CONFIG_NETFILTER_XT_MATCH_HELPER) += xt_helper.o - obj-$(CONFIG_NETFILTER_XT_MATCH_HL) += xt_hl.o -diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c -index 29fa5ba..8debc79 100644 ---- a/net/netfilter/ipvs/ip_vs_conn.c -+++ b/net/netfilter/ipvs/ip_vs_conn.c -@@ -556,7 +556,7 @@ ip_vs_bind_dest(struct ip_vs_conn *cp, struct ip_vs_dest *dest) - /* Increase the refcnt counter of the dest */ - atomic_inc(&dest->refcnt); - -- conn_flags = atomic_read(&dest->conn_flags); -+ conn_flags = atomic_read_unchecked(&dest->conn_flags); - if (cp->protocol != IPPROTO_UDP) - conn_flags &= ~IP_VS_CONN_F_ONE_PACKET; - /* Bind with the destination and its corresponding transmitter */ -@@ -869,7 +869,7 @@ ip_vs_conn_new(const struct ip_vs_conn_param *p, - atomic_set(&cp->refcnt, 1); - - atomic_set(&cp->n_control, 0); -- atomic_set(&cp->in_pkts, 0); -+ atomic_set_unchecked(&cp->in_pkts, 0); - - atomic_inc(&ipvs->conn_count); - if (flags & IP_VS_CONN_F_NO_CPORT) -@@ -1149,7 +1149,7 @@ static inline int todrop_entry(struct ip_vs_conn *cp) - - /* Don't drop the entry if its number of incoming packets is not - located in [0, 8] */ -- i = atomic_read(&cp->in_pkts); -+ i = atomic_read_unchecked(&cp->in_pkts); - if (i > 8 || i < 0) return 0; - - if (!todrop_rate[i]) return 0; -diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c -index 00bdb1d..6725a48 100644 ---- a/net/netfilter/ipvs/ip_vs_core.c -+++ b/net/netfilter/ipvs/ip_vs_core.c -@@ -562,7 +562,7 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb, - ret = cp->packet_xmit(skb, cp, pd->pp); - /* do not touch skb anymore */ - -- atomic_inc(&cp->in_pkts); -+ atomic_inc_unchecked(&cp->in_pkts); - ip_vs_conn_put(cp); - return ret; - } -@@ -1611,7 +1611,7 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af) - if (cp->flags & IP_VS_CONN_F_ONE_PACKET) - pkts = sysctl_sync_threshold(ipvs); - else -- pkts = atomic_add_return(1, &cp->in_pkts); -+ pkts = atomic_add_return_unchecked(1, &cp->in_pkts); - - if ((ipvs->sync_state & IP_VS_STATE_MASTER) && - cp->protocol == IPPROTO_SCTP) { -diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c -index f558998..9cdff60 100644 ---- a/net/netfilter/ipvs/ip_vs_ctl.c -+++ b/net/netfilter/ipvs/ip_vs_ctl.c -@@ -788,7 +788,7 @@ __ip_vs_update_dest(struct ip_vs_service *svc, struct ip_vs_dest *dest, - ip_vs_rs_hash(ipvs, dest); - write_unlock_bh(&ipvs->rs_lock); - } -- atomic_set(&dest->conn_flags, conn_flags); -+ atomic_set_unchecked(&dest->conn_flags, conn_flags); - - /* bind the service */ - if (!dest->svc) { -@@ -2028,7 +2028,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v) - " %-7s %-6d %-10d %-10d\n", - &dest->addr.in6, - ntohs(dest->port), -- ip_vs_fwd_name(atomic_read(&dest->conn_flags)), -+ ip_vs_fwd_name(atomic_read_unchecked(&dest->conn_flags)), - atomic_read(&dest->weight), - atomic_read(&dest->activeconns), - atomic_read(&dest->inactconns)); -@@ -2039,7 +2039,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v) - "%-7s %-6d %-10d %-10d\n", - ntohl(dest->addr.ip), - ntohs(dest->port), -- ip_vs_fwd_name(atomic_read(&dest->conn_flags)), -+ ip_vs_fwd_name(atomic_read_unchecked(&dest->conn_flags)), - atomic_read(&dest->weight), - atomic_read(&dest->activeconns), - atomic_read(&dest->inactconns)); -@@ -2509,7 +2509,7 @@ __ip_vs_get_dest_entries(struct net *net, const struct ip_vs_get_dests *get, - - entry.addr = dest->addr.ip; - entry.port = dest->port; -- entry.conn_flags = atomic_read(&dest->conn_flags); -+ entry.conn_flags = atomic_read_unchecked(&dest->conn_flags); - entry.weight = atomic_read(&dest->weight); - entry.u_threshold = dest->u_threshold; - entry.l_threshold = dest->l_threshold; -@@ -3042,7 +3042,7 @@ static int ip_vs_genl_fill_dest(struct sk_buff *skb, struct ip_vs_dest *dest) - NLA_PUT_U16(skb, IPVS_DEST_ATTR_PORT, dest->port); - - NLA_PUT_U32(skb, IPVS_DEST_ATTR_FWD_METHOD, -- atomic_read(&dest->conn_flags) & IP_VS_CONN_F_FWD_MASK); -+ atomic_read_unchecked(&dest->conn_flags) & IP_VS_CONN_F_FWD_MASK); - NLA_PUT_U32(skb, IPVS_DEST_ATTR_WEIGHT, atomic_read(&dest->weight)); - NLA_PUT_U32(skb, IPVS_DEST_ATTR_U_THRESH, dest->u_threshold); - NLA_PUT_U32(skb, IPVS_DEST_ATTR_L_THRESH, dest->l_threshold); -diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c -index 8a0d6d6..90ec197 100644 ---- a/net/netfilter/ipvs/ip_vs_sync.c -+++ b/net/netfilter/ipvs/ip_vs_sync.c -@@ -649,7 +649,7 @@ control: - * i.e only increment in_pkts for Templates. - */ - if (cp->flags & IP_VS_CONN_F_TEMPLATE) { -- int pkts = atomic_add_return(1, &cp->in_pkts); -+ int pkts = atomic_add_return_unchecked(1, &cp->in_pkts); - - if (pkts % sysctl_sync_period(ipvs) != 1) - return; -@@ -795,7 +795,7 @@ static void ip_vs_proc_conn(struct net *net, struct ip_vs_conn_param *param, - - if (opt) - memcpy(&cp->in_seq, opt, sizeof(*opt)); -- atomic_set(&cp->in_pkts, sysctl_sync_threshold(ipvs)); -+ atomic_set_unchecked(&cp->in_pkts, sysctl_sync_threshold(ipvs)); - cp->state = state; - cp->old_state = cp->state; - /* -diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c -index 7fd66de..e6fb361 100644 ---- a/net/netfilter/ipvs/ip_vs_xmit.c -+++ b/net/netfilter/ipvs/ip_vs_xmit.c -@@ -1151,7 +1151,7 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp, - else - rc = NF_ACCEPT; - /* do not touch skb anymore */ -- atomic_inc(&cp->in_pkts); -+ atomic_inc_unchecked(&cp->in_pkts); - goto out; - } - -@@ -1272,7 +1272,7 @@ ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp, - else - rc = NF_ACCEPT; - /* do not touch skb anymore */ -- atomic_inc(&cp->in_pkts); -+ atomic_inc_unchecked(&cp->in_pkts); - goto out; - } - -diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c -index 66b2c54..c7884e3 100644 ---- a/net/netfilter/nfnetlink_log.c -+++ b/net/netfilter/nfnetlink_log.c -@@ -70,7 +70,7 @@ struct nfulnl_instance { - }; - - static DEFINE_SPINLOCK(instances_lock); --static atomic_t global_seq; -+static atomic_unchecked_t global_seq; - - #define INSTANCE_BUCKETS 16 - static struct hlist_head instance_table[INSTANCE_BUCKETS]; -@@ -502,7 +502,7 @@ __build_packet_message(struct nfulnl_instance *inst, - /* global sequence number */ - if (inst->flags & NFULNL_CFG_F_SEQ_GLOBAL) - NLA_PUT_BE32(inst->skb, NFULA_SEQ_GLOBAL, -- htonl(atomic_inc_return(&global_seq))); -+ htonl(atomic_inc_return_unchecked(&global_seq))); - - if (data_len) { - struct nlattr *nla; -diff --git a/net/netfilter/xt_gradm.c b/net/netfilter/xt_gradm.c -new file mode 100644 -index 0000000..6905327 ---- /dev/null -+++ b/net/netfilter/xt_gradm.c -@@ -0,0 +1,51 @@ -+/* -+ * gradm match for netfilter -+ * Copyright © Zbigniew Krzystolik, 2010 -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License; either version -+ * 2 or 3 as published by the Free Software Foundation. -+ */ -+#include <linux/module.h> -+#include <linux/moduleparam.h> -+#include <linux/skbuff.h> -+#include <linux/netfilter/x_tables.h> -+#include <linux/grsecurity.h> -+#include <linux/netfilter/xt_gradm.h> -+ -+static bool -+gradm_mt(const struct sk_buff *skb, struct xt_action_param *par) -+{ -+ const struct xt_gradm_mtinfo *info = par->matchinfo; -+ bool retval = false; -+ if (gr_acl_is_enabled()) -+ retval = true; -+ return retval ^ info->invflags; -+} -+ -+static struct xt_match gradm_mt_reg __read_mostly = { -+ .name = "gradm", -+ .revision = 0, -+ .family = NFPROTO_UNSPEC, -+ .match = gradm_mt, -+ .matchsize = XT_ALIGN(sizeof(struct xt_gradm_mtinfo)), -+ .me = THIS_MODULE, -+}; -+ -+static int __init gradm_mt_init(void) -+{ -+ return xt_register_match(&gradm_mt_reg); -+} -+ -+static void __exit gradm_mt_exit(void) -+{ -+ xt_unregister_match(&gradm_mt_reg); -+} -+ -+module_init(gradm_mt_init); -+module_exit(gradm_mt_exit); -+MODULE_AUTHOR("Zbigniew Krzystolik <zbyniu(a)destrukcja.pl>"); -+MODULE_DESCRIPTION("Xtables: Grsecurity RBAC match"); -+MODULE_LICENSE("GPL"); -+MODULE_ALIAS("ipt_gradm"); -+MODULE_ALIAS("ip6t_gradm"); -diff --git a/net/netfilter/xt_statistic.c b/net/netfilter/xt_statistic.c -index 4fe4fb4..87a89e5 100644 ---- a/net/netfilter/xt_statistic.c -+++ b/net/netfilter/xt_statistic.c -@@ -19,7 +19,7 @@ - #include <linux/module.h> - - struct xt_statistic_priv { -- atomic_t count; -+ atomic_unchecked_t count; - } ____cacheline_aligned_in_smp; - - MODULE_LICENSE("GPL"); -@@ -42,9 +42,9 @@ statistic_mt(const struct sk_buff *skb, struct xt_action_param *par) - break; - case XT_STATISTIC_MODE_NTH: - do { -- oval = atomic_read(&info->master->count); -+ oval = atomic_read_unchecked(&info->master->count); - nval = (oval == info->u.nth.every) ? 0 : oval + 1; -- } while (atomic_cmpxchg(&info->master->count, oval, nval) != oval); -+ } while (atomic_cmpxchg_unchecked(&info->master->count, oval, nval) != oval); - if (nval == 0) - ret = !ret; - break; -@@ -64,7 +64,7 @@ static int statistic_mt_check(const struct xt_mtchk_param *par) - info->master = kzalloc(sizeof(*info->master), GFP_KERNEL); - if (info->master == NULL) - return -ENOMEM; -- atomic_set(&info->master->count, info->u.nth.count); -+ atomic_set_unchecked(&info->master->count, info->u.nth.count); - - return 0; - } -diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c -index faa48f7..65f7f54 100644 ---- a/net/netlink/af_netlink.c -+++ b/net/netlink/af_netlink.c -@@ -741,7 +741,7 @@ static void netlink_overrun(struct sock *sk) - sk->sk_error_report(sk); - } - } -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - } - - static struct sock *netlink_getsockbypid(struct sock *ssk, u32 pid) -@@ -2013,7 +2013,7 @@ static int netlink_seq_show(struct seq_file *seq, void *v) - sk_wmem_alloc_get(s), - nlk->cb, - atomic_read(&s->sk_refcnt), -- atomic_read(&s->sk_drops), -+ atomic_read_unchecked(&s->sk_drops), - sock_i_ino(s) - ); - -diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c -index 06592d8..64860f6 100644 ---- a/net/netrom/af_netrom.c -+++ b/net/netrom/af_netrom.c -@@ -838,6 +838,7 @@ static int nr_getname(struct socket *sock, struct sockaddr *uaddr, - struct sock *sk = sock->sk; - struct nr_sock *nr = nr_sk(sk); - -+ memset(sax, 0, sizeof(*sax)); - lock_sock(sk); - if (peer != 0) { - if (sk->sk_state != TCP_ESTABLISHED) { -@@ -852,7 +853,6 @@ static int nr_getname(struct socket *sock, struct sockaddr *uaddr, - *uaddr_len = sizeof(struct full_sockaddr_ax25); - } else { - sax->fsa_ax25.sax25_family = AF_NETROM; -- sax->fsa_ax25.sax25_ndigis = 0; - sax->fsa_ax25.sax25_call = nr->source_addr; - *uaddr_len = sizeof(struct sockaddr_ax25); - } -diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c -index 4f2c0df..f0ff342 100644 ---- a/net/packet/af_packet.c -+++ b/net/packet/af_packet.c -@@ -1687,7 +1687,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev, - - spin_lock(&sk->sk_receive_queue.lock); - po->stats.tp_packets++; -- skb->dropcount = atomic_read(&sk->sk_drops); -+ skb->dropcount = atomic_read_unchecked(&sk->sk_drops); - __skb_queue_tail(&sk->sk_receive_queue, skb); - spin_unlock(&sk->sk_receive_queue.lock); - sk->sk_data_ready(sk, skb->len); -@@ -1696,7 +1696,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev, - drop_n_acct: - spin_lock(&sk->sk_receive_queue.lock); - po->stats.tp_drops++; -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - spin_unlock(&sk->sk_receive_queue.lock); - - drop_n_restore: -@@ -3294,7 +3294,7 @@ static int packet_getsockopt(struct socket *sock, int level, int optname, - case PACKET_HDRLEN: - if (len > sizeof(int)) - len = sizeof(int); -- if (copy_from_user(&val, optval, len)) -+ if (len > sizeof(val) || copy_from_user(&val, optval, len)) - return -EFAULT; - switch (val) { - case TPACKET_V1: -@@ -3344,7 +3344,7 @@ static int packet_getsockopt(struct socket *sock, int level, int optname, - - if (put_user(len, optlen)) - return -EFAULT; -- if (copy_to_user(optval, data, len)) -+ if (len > sizeof(st) || copy_to_user(optval, data, len)) - return -EFAULT; - return 0; - } -diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c -index d65f699..05aa6ce 100644 ---- a/net/phonet/af_phonet.c -+++ b/net/phonet/af_phonet.c -@@ -41,7 +41,7 @@ static struct phonet_protocol *phonet_proto_get(unsigned int protocol) - { - struct phonet_protocol *pp; - -- if (protocol >= PHONET_NPROTO) -+ if (protocol < 0 || protocol >= PHONET_NPROTO) - return NULL; - - rcu_read_lock(); -@@ -469,7 +469,7 @@ int __init_or_module phonet_proto_register(unsigned int protocol, - { - int err = 0; - -- if (protocol >= PHONET_NPROTO) -+ if (protocol < 0 || protocol >= PHONET_NPROTO) - return -EINVAL; - - err = proto_register(pp->prot, 1); -diff --git a/net/phonet/pep.c b/net/phonet/pep.c -index 9726fe6..fc4e3a4 100644 ---- a/net/phonet/pep.c -+++ b/net/phonet/pep.c -@@ -388,7 +388,7 @@ static int pipe_do_rcv(struct sock *sk, struct sk_buff *skb) - - case PNS_PEP_CTRL_REQ: - if (skb_queue_len(&pn->ctrlreq_queue) >= PNPIPE_CTRLREQ_MAX) { -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - break; - } - __skb_pull(skb, 4); -@@ -409,7 +409,7 @@ static int pipe_do_rcv(struct sock *sk, struct sk_buff *skb) - } - - if (pn->rx_credits == 0) { -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - err = -ENOBUFS; - break; - } -@@ -580,7 +580,7 @@ static int pipe_handler_do_rcv(struct sock *sk, struct sk_buff *skb) - } - - if (pn->rx_credits == 0) { -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - err = NET_RX_DROP; - break; - } -diff --git a/net/phonet/socket.c b/net/phonet/socket.c -index 4c7eff3..59c727f 100644 ---- a/net/phonet/socket.c -+++ b/net/phonet/socket.c -@@ -613,8 +613,13 @@ static int pn_sock_seq_show(struct seq_file *seq, void *v) - pn->resource, sk->sk_state, - sk_wmem_alloc_get(sk), sk_rmem_alloc_get(sk), - sock_i_uid(sk), sock_i_ino(sk), -- atomic_read(&sk->sk_refcnt), sk, -- atomic_read(&sk->sk_drops), &len); -+ atomic_read(&sk->sk_refcnt), -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ NULL, -+#else -+ sk, -+#endif -+ atomic_read_unchecked(&sk->sk_drops), &len); - } - seq_printf(seq, "%*s\n", 127 - len, ""); - return 0; -diff --git a/net/rds/cong.c b/net/rds/cong.c -index e5b65ac..f3b6fb7 100644 ---- a/net/rds/cong.c -+++ b/net/rds/cong.c -@@ -78,7 +78,7 @@ - * finds that the saved generation number is smaller than the global generation - * number, it wakes up the process. - */ --static atomic_t rds_cong_generation = ATOMIC_INIT(0); -+static atomic_unchecked_t rds_cong_generation = ATOMIC_INIT(0); - - /* - * Congestion monitoring -@@ -233,7 +233,7 @@ void rds_cong_map_updated(struct rds_cong_map *map, uint64_t portmask) - rdsdebug("waking map %p for %pI4\n", - map, &map->m_addr); - rds_stats_inc(s_cong_update_received); -- atomic_inc(&rds_cong_generation); -+ atomic_inc_unchecked(&rds_cong_generation); - if (waitqueue_active(&map->m_waitq)) - wake_up(&map->m_waitq); - if (waitqueue_active(&rds_poll_waitq)) -@@ -259,7 +259,7 @@ EXPORT_SYMBOL_GPL(rds_cong_map_updated); - - int rds_cong_updated_since(unsigned long *recent) - { -- unsigned long gen = atomic_read(&rds_cong_generation); -+ unsigned long gen = atomic_read_unchecked(&rds_cong_generation); - - if (likely(*recent == gen)) - return 0; -diff --git a/net/rds/ib.h b/net/rds/ib.h -index edfaaaf..8c89879 100644 ---- a/net/rds/ib.h -+++ b/net/rds/ib.h -@@ -128,7 +128,7 @@ struct rds_ib_connection { - /* sending acks */ - unsigned long i_ack_flags; - #ifdef KERNEL_HAS_ATOMIC64 -- atomic64_t i_ack_next; /* next ACK to send */ -+ atomic64_unchecked_t i_ack_next; /* next ACK to send */ - #else - spinlock_t i_ack_lock; /* protect i_ack_next */ - u64 i_ack_next; /* next ACK to send */ -diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c -index a1e1162..265e129 100644 ---- a/net/rds/ib_cm.c -+++ b/net/rds/ib_cm.c -@@ -718,7 +718,7 @@ void rds_ib_conn_shutdown(struct rds_connection *conn) - /* Clear the ACK state */ - clear_bit(IB_ACK_IN_FLIGHT, &ic->i_ack_flags); - #ifdef KERNEL_HAS_ATOMIC64 -- atomic64_set(&ic->i_ack_next, 0); -+ atomic64_set_unchecked(&ic->i_ack_next, 0); - #else - ic->i_ack_next = 0; - #endif -diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c -index 8d19491..05a3e65 100644 ---- a/net/rds/ib_recv.c -+++ b/net/rds/ib_recv.c -@@ -592,7 +592,7 @@ static u64 rds_ib_get_ack(struct rds_ib_connection *ic) - static void rds_ib_set_ack(struct rds_ib_connection *ic, u64 seq, - int ack_required) - { -- atomic64_set(&ic->i_ack_next, seq); -+ atomic64_set_unchecked(&ic->i_ack_next, seq); - if (ack_required) { - smp_mb__before_clear_bit(); - set_bit(IB_ACK_REQUESTED, &ic->i_ack_flags); -@@ -604,7 +604,7 @@ static u64 rds_ib_get_ack(struct rds_ib_connection *ic) - clear_bit(IB_ACK_REQUESTED, &ic->i_ack_flags); - smp_mb__after_clear_bit(); - -- return atomic64_read(&ic->i_ack_next); -+ return atomic64_read_unchecked(&ic->i_ack_next); - } - #endif - -diff --git a/net/rds/iw.h b/net/rds/iw.h -index 04ce3b1..48119a6 100644 ---- a/net/rds/iw.h -+++ b/net/rds/iw.h -@@ -134,7 +134,7 @@ struct rds_iw_connection { - /* sending acks */ - unsigned long i_ack_flags; - #ifdef KERNEL_HAS_ATOMIC64 -- atomic64_t i_ack_next; /* next ACK to send */ -+ atomic64_unchecked_t i_ack_next; /* next ACK to send */ - #else - spinlock_t i_ack_lock; /* protect i_ack_next */ - u64 i_ack_next; /* next ACK to send */ -diff --git a/net/rds/iw_cm.c b/net/rds/iw_cm.c -index a91e1db..cf3053f 100644 ---- a/net/rds/iw_cm.c -+++ b/net/rds/iw_cm.c -@@ -663,7 +663,7 @@ void rds_iw_conn_shutdown(struct rds_connection *conn) - /* Clear the ACK state */ - clear_bit(IB_ACK_IN_FLIGHT, &ic->i_ack_flags); - #ifdef KERNEL_HAS_ATOMIC64 -- atomic64_set(&ic->i_ack_next, 0); -+ atomic64_set_unchecked(&ic->i_ack_next, 0); - #else - ic->i_ack_next = 0; - #endif -diff --git a/net/rds/iw_recv.c b/net/rds/iw_recv.c -index 4503335..db566b4 100644 ---- a/net/rds/iw_recv.c -+++ b/net/rds/iw_recv.c -@@ -427,7 +427,7 @@ static u64 rds_iw_get_ack(struct rds_iw_connection *ic) - static void rds_iw_set_ack(struct rds_iw_connection *ic, u64 seq, - int ack_required) - { -- atomic64_set(&ic->i_ack_next, seq); -+ atomic64_set_unchecked(&ic->i_ack_next, seq); - if (ack_required) { - smp_mb__before_clear_bit(); - set_bit(IB_ACK_REQUESTED, &ic->i_ack_flags); -@@ -439,7 +439,7 @@ static u64 rds_iw_get_ack(struct rds_iw_connection *ic) - clear_bit(IB_ACK_REQUESTED, &ic->i_ack_flags); - smp_mb__after_clear_bit(); - -- return atomic64_read(&ic->i_ack_next); -+ return atomic64_read_unchecked(&ic->i_ack_next); - } - #endif - -diff --git a/net/rds/tcp.c b/net/rds/tcp.c -index edac9ef..16bcb98 100644 ---- a/net/rds/tcp.c -+++ b/net/rds/tcp.c -@@ -59,7 +59,7 @@ void rds_tcp_nonagle(struct socket *sock) - int val = 1; - - set_fs(KERNEL_DS); -- sock->ops->setsockopt(sock, SOL_TCP, TCP_NODELAY, (char __user *)&val, -+ sock->ops->setsockopt(sock, SOL_TCP, TCP_NODELAY, (char __force_user *)&val, - sizeof(val)); - set_fs(oldfs); - } -diff --git a/net/rds/tcp_send.c b/net/rds/tcp_send.c -index 1b4fd68..2234175 100644 ---- a/net/rds/tcp_send.c -+++ b/net/rds/tcp_send.c -@@ -43,7 +43,7 @@ static void rds_tcp_cork(struct socket *sock, int val) - - oldfs = get_fs(); - set_fs(KERNEL_DS); -- sock->ops->setsockopt(sock, SOL_TCP, TCP_CORK, (char __user *)&val, -+ sock->ops->setsockopt(sock, SOL_TCP, TCP_CORK, (char __force_user *)&val, - sizeof(val)); - set_fs(oldfs); - } -diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c -index 74c064c..fdec26f 100644 ---- a/net/rxrpc/af_rxrpc.c -+++ b/net/rxrpc/af_rxrpc.c -@@ -39,7 +39,7 @@ static const struct proto_ops rxrpc_rpc_ops; - __be32 rxrpc_epoch; - - /* current debugging ID */ --atomic_t rxrpc_debug_id; -+atomic_unchecked_t rxrpc_debug_id; - - /* count of skbs currently in use */ - atomic_t rxrpc_n_skbs; -diff --git a/net/rxrpc/ar-ack.c b/net/rxrpc/ar-ack.c -index c3126e8..21facc7 100644 ---- a/net/rxrpc/ar-ack.c -+++ b/net/rxrpc/ar-ack.c -@@ -175,7 +175,7 @@ static void rxrpc_resend(struct rxrpc_call *call) - - _enter("{%d,%d,%d,%d},", - call->acks_hard, call->acks_unacked, -- atomic_read(&call->sequence), -+ atomic_read_unchecked(&call->sequence), - CIRC_CNT(call->acks_head, call->acks_tail, call->acks_winsz)); - - stop = 0; -@@ -199,7 +199,7 @@ static void rxrpc_resend(struct rxrpc_call *call) - - /* each Tx packet has a new serial number */ - sp->hdr.serial = -- htonl(atomic_inc_return(&call->conn->serial)); -+ htonl(atomic_inc_return_unchecked(&call->conn->serial)); - - hdr = (struct rxrpc_header *) txb->head; - hdr->serial = sp->hdr.serial; -@@ -403,7 +403,7 @@ static void rxrpc_rotate_tx_window(struct rxrpc_call *call, u32 hard) - */ - static void rxrpc_clear_tx_window(struct rxrpc_call *call) - { -- rxrpc_rotate_tx_window(call, atomic_read(&call->sequence)); -+ rxrpc_rotate_tx_window(call, atomic_read_unchecked(&call->sequence)); - } - - /* -@@ -629,7 +629,7 @@ process_further: - - latest = ntohl(sp->hdr.serial); - hard = ntohl(ack.firstPacket); -- tx = atomic_read(&call->sequence); -+ tx = atomic_read_unchecked(&call->sequence); - - _proto("Rx ACK %%%u { m=%hu f=#%u p=#%u s=%%%u r=%s n=%u }", - latest, -@@ -1161,7 +1161,7 @@ void rxrpc_process_call(struct work_struct *work) - goto maybe_reschedule; - - send_ACK_with_skew: -- ack.maxSkew = htons(atomic_read(&call->conn->hi_serial) - -+ ack.maxSkew = htons(atomic_read_unchecked(&call->conn->hi_serial) - - ntohl(ack.serial)); - send_ACK: - mtu = call->conn->trans->peer->if_mtu; -@@ -1173,7 +1173,7 @@ send_ACK: - ackinfo.rxMTU = htonl(5692); - ackinfo.jumbo_max = htonl(4); - -- hdr.serial = htonl(atomic_inc_return(&call->conn->serial)); -+ hdr.serial = htonl(atomic_inc_return_unchecked(&call->conn->serial)); - _proto("Tx ACK %%%u { m=%hu f=#%u p=#%u s=%%%u r=%s n=%u }", - ntohl(hdr.serial), - ntohs(ack.maxSkew), -@@ -1191,7 +1191,7 @@ send_ACK: - send_message: - _debug("send message"); - -- hdr.serial = htonl(atomic_inc_return(&call->conn->serial)); -+ hdr.serial = htonl(atomic_inc_return_unchecked(&call->conn->serial)); - _proto("Tx %s %%%u", rxrpc_pkts[hdr.type], ntohl(hdr.serial)); - send_message_2: - -diff --git a/net/rxrpc/ar-call.c b/net/rxrpc/ar-call.c -index bf656c2..48f9d27 100644 ---- a/net/rxrpc/ar-call.c -+++ b/net/rxrpc/ar-call.c -@@ -83,7 +83,7 @@ static struct rxrpc_call *rxrpc_alloc_call(gfp_t gfp) - spin_lock_init(&call->lock); - rwlock_init(&call->state_lock); - atomic_set(&call->usage, 1); -- call->debug_id = atomic_inc_return(&rxrpc_debug_id); -+ call->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id); - call->state = RXRPC_CALL_CLIENT_SEND_REQUEST; - - memset(&call->sock_node, 0xed, sizeof(call->sock_node)); -diff --git a/net/rxrpc/ar-connection.c b/net/rxrpc/ar-connection.c -index 4106ca9..a338d7a 100644 ---- a/net/rxrpc/ar-connection.c -+++ b/net/rxrpc/ar-connection.c -@@ -206,7 +206,7 @@ static struct rxrpc_connection *rxrpc_alloc_connection(gfp_t gfp) - rwlock_init(&conn->lock); - spin_lock_init(&conn->state_lock); - atomic_set(&conn->usage, 1); -- conn->debug_id = atomic_inc_return(&rxrpc_debug_id); -+ conn->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id); - conn->avail_calls = RXRPC_MAXCALLS; - conn->size_align = 4; - conn->header_size = sizeof(struct rxrpc_header); -diff --git a/net/rxrpc/ar-connevent.c b/net/rxrpc/ar-connevent.c -index e7ed43a..6afa140 100644 ---- a/net/rxrpc/ar-connevent.c -+++ b/net/rxrpc/ar-connevent.c -@@ -109,7 +109,7 @@ static int rxrpc_abort_connection(struct rxrpc_connection *conn, - - len = iov[0].iov_len + iov[1].iov_len; - -- hdr.serial = htonl(atomic_inc_return(&conn->serial)); -+ hdr.serial = htonl(atomic_inc_return_unchecked(&conn->serial)); - _proto("Tx CONN ABORT %%%u { %d }", ntohl(hdr.serial), abort_code); - - ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 2, len); -diff --git a/net/rxrpc/ar-input.c b/net/rxrpc/ar-input.c -index 1a2b0633..e8d1382 100644 ---- a/net/rxrpc/ar-input.c -+++ b/net/rxrpc/ar-input.c -@@ -340,9 +340,9 @@ void rxrpc_fast_process_packet(struct rxrpc_call *call, struct sk_buff *skb) - /* track the latest serial number on this connection for ACK packet - * information */ - serial = ntohl(sp->hdr.serial); -- hi_serial = atomic_read(&call->conn->hi_serial); -+ hi_serial = atomic_read_unchecked(&call->conn->hi_serial); - while (serial > hi_serial) -- hi_serial = atomic_cmpxchg(&call->conn->hi_serial, hi_serial, -+ hi_serial = atomic_cmpxchg_unchecked(&call->conn->hi_serial, hi_serial, - serial); - - /* request ACK generation for any ACK or DATA packet that requests -diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h -index 8e22bd3..f66d1c0 100644 ---- a/net/rxrpc/ar-internal.h -+++ b/net/rxrpc/ar-internal.h -@@ -272,8 +272,8 @@ struct rxrpc_connection { - int error; /* error code for local abort */ - int debug_id; /* debug ID for printks */ - unsigned call_counter; /* call ID counter */ -- atomic_t serial; /* packet serial number counter */ -- atomic_t hi_serial; /* highest serial number received */ -+ atomic_unchecked_t serial; /* packet serial number counter */ -+ atomic_unchecked_t hi_serial; /* highest serial number received */ - u8 avail_calls; /* number of calls available */ - u8 size_align; /* data size alignment (for security) */ - u8 header_size; /* rxrpc + security header size */ -@@ -346,7 +346,7 @@ struct rxrpc_call { - spinlock_t lock; - rwlock_t state_lock; /* lock for state transition */ - atomic_t usage; -- atomic_t sequence; /* Tx data packet sequence counter */ -+ atomic_unchecked_t sequence; /* Tx data packet sequence counter */ - u32 abort_code; /* local/remote abort code */ - enum { /* current state of call */ - RXRPC_CALL_CLIENT_SEND_REQUEST, /* - client sending request phase */ -@@ -420,7 +420,7 @@ static inline void rxrpc_abort_call(struct rxrpc_call *call, u32 abort_code) - */ - extern atomic_t rxrpc_n_skbs; - extern __be32 rxrpc_epoch; --extern atomic_t rxrpc_debug_id; -+extern atomic_unchecked_t rxrpc_debug_id; - extern struct workqueue_struct *rxrpc_workqueue; - - /* -diff --git a/net/rxrpc/ar-local.c b/net/rxrpc/ar-local.c -index 87f7135..74d3703 100644 ---- a/net/rxrpc/ar-local.c -+++ b/net/rxrpc/ar-local.c -@@ -45,7 +45,7 @@ struct rxrpc_local *rxrpc_alloc_local(struct sockaddr_rxrpc *srx) - spin_lock_init(&local->lock); - rwlock_init(&local->services_lock); - atomic_set(&local->usage, 1); -- local->debug_id = atomic_inc_return(&rxrpc_debug_id); -+ local->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id); - memcpy(&local->srx, srx, sizeof(*srx)); - } - -diff --git a/net/rxrpc/ar-output.c b/net/rxrpc/ar-output.c -index 16ae887..d24f12b 100644 ---- a/net/rxrpc/ar-output.c -+++ b/net/rxrpc/ar-output.c -@@ -682,9 +682,9 @@ static int rxrpc_send_data(struct kiocb *iocb, - sp->hdr.cid = call->cid; - sp->hdr.callNumber = call->call_id; - sp->hdr.seq = -- htonl(atomic_inc_return(&call->sequence)); -+ htonl(atomic_inc_return_unchecked(&call->sequence)); - sp->hdr.serial = -- htonl(atomic_inc_return(&conn->serial)); -+ htonl(atomic_inc_return_unchecked(&conn->serial)); - sp->hdr.type = RXRPC_PACKET_TYPE_DATA; - sp->hdr.userStatus = 0; - sp->hdr.securityIndex = conn->security_ix; -diff --git a/net/rxrpc/ar-peer.c b/net/rxrpc/ar-peer.c -index 2754f09..b20e38f 100644 ---- a/net/rxrpc/ar-peer.c -+++ b/net/rxrpc/ar-peer.c -@@ -72,7 +72,7 @@ static struct rxrpc_peer *rxrpc_alloc_peer(struct sockaddr_rxrpc *srx, - INIT_LIST_HEAD(&peer->error_targets); - spin_lock_init(&peer->lock); - atomic_set(&peer->usage, 1); -- peer->debug_id = atomic_inc_return(&rxrpc_debug_id); -+ peer->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id); - memcpy(&peer->srx, srx, sizeof(*srx)); - - rxrpc_assess_MTU_size(peer); -diff --git a/net/rxrpc/ar-proc.c b/net/rxrpc/ar-proc.c -index 38047f7..9f48511 100644 ---- a/net/rxrpc/ar-proc.c -+++ b/net/rxrpc/ar-proc.c -@@ -164,8 +164,8 @@ static int rxrpc_connection_seq_show(struct seq_file *seq, void *v) - atomic_read(&conn->usage), - rxrpc_conn_states[conn->state], - key_serial(conn->key), -- atomic_read(&conn->serial), -- atomic_read(&conn->hi_serial)); -+ atomic_read_unchecked(&conn->serial), -+ atomic_read_unchecked(&conn->hi_serial)); - - return 0; - } -diff --git a/net/rxrpc/ar-transport.c b/net/rxrpc/ar-transport.c -index 92df566..87ec1bf 100644 ---- a/net/rxrpc/ar-transport.c -+++ b/net/rxrpc/ar-transport.c -@@ -47,7 +47,7 @@ static struct rxrpc_transport *rxrpc_alloc_transport(struct rxrpc_local *local, - spin_lock_init(&trans->client_lock); - rwlock_init(&trans->conn_lock); - atomic_set(&trans->usage, 1); -- trans->debug_id = atomic_inc_return(&rxrpc_debug_id); -+ trans->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id); - - if (peer->srx.transport.family == AF_INET) { - switch (peer->srx.transport_type) { -diff --git a/net/rxrpc/rxkad.c b/net/rxrpc/rxkad.c -index 7635107..4670276 100644 ---- a/net/rxrpc/rxkad.c -+++ b/net/rxrpc/rxkad.c -@@ -610,7 +610,7 @@ static int rxkad_issue_challenge(struct rxrpc_connection *conn) - - len = iov[0].iov_len + iov[1].iov_len; - -- hdr.serial = htonl(atomic_inc_return(&conn->serial)); -+ hdr.serial = htonl(atomic_inc_return_unchecked(&conn->serial)); - _proto("Tx CHALLENGE %%%u", ntohl(hdr.serial)); - - ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 2, len); -@@ -660,7 +660,7 @@ static int rxkad_send_response(struct rxrpc_connection *conn, - - len = iov[0].iov_len + iov[1].iov_len + iov[2].iov_len; - -- hdr->serial = htonl(atomic_inc_return(&conn->serial)); -+ hdr->serial = htonl(atomic_inc_return_unchecked(&conn->serial)); - _proto("Tx RESPONSE %%%u", ntohl(hdr->serial)); - - ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 3, len); -diff --git a/net/sctp/proc.c b/net/sctp/proc.c -index 1e2eee8..ce3967e 100644 ---- a/net/sctp/proc.c -+++ b/net/sctp/proc.c -@@ -319,7 +319,8 @@ static int sctp_assocs_seq_show(struct seq_file *seq, void *v) - seq_printf(seq, - "%8pK %8pK %-3d %-3d %-2d %-4d " - "%4d %8d %8d %7d %5lu %-5d %5d ", -- assoc, sk, sctp_sk(sk)->type, sk->sk_state, -+ assoc, sk, -+ sctp_sk(sk)->type, sk->sk_state, - assoc->state, hash, - assoc->assoc_id, - assoc->sndbuf_used, -diff --git a/net/sctp/socket.c b/net/sctp/socket.c -index 92ba71d..9a97902 100644 ---- a/net/sctp/socket.c -+++ b/net/sctp/socket.c -@@ -4569,7 +4569,7 @@ static int sctp_getsockopt_peer_addrs(struct sock *sk, int len, - addrlen = sctp_get_af_specific(temp.sa.sa_family)->sockaddr_len; - if (space_left < addrlen) - return -ENOMEM; -- if (copy_to_user(to, &temp, addrlen)) -+ if (addrlen > sizeof(temp) || copy_to_user(to, &temp, addrlen)) - return -EFAULT; - to += addrlen; - cnt++; -diff --git a/net/socket.c b/net/socket.c -index 851edcd..b786851 100644 ---- a/net/socket.c -+++ b/net/socket.c -@@ -88,6 +88,7 @@ - #include <linux/nsproxy.h> - #include <linux/magic.h> - #include <linux/slab.h> -+#include <linux/in.h> - - #include <asm/uaccess.h> - #include <asm/unistd.h> -@@ -105,6 +106,8 @@ - #include <linux/sockios.h> - #include <linux/atalk.h> - -+#include <linux/grsock.h> -+ - static int sock_no_open(struct inode *irrelevant, struct file *dontcare); - static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov, - unsigned long nr_segs, loff_t pos); -@@ -321,7 +324,7 @@ static struct dentry *sockfs_mount(struct file_system_type *fs_type, - &sockfs_dentry_operations, SOCKFS_MAGIC); - } - --static struct vfsmount *sock_mnt __read_mostly; -+struct vfsmount *sock_mnt __read_mostly; - - static struct file_system_type sock_fs_type = { - .name = "sockfs", -@@ -1207,6 +1210,8 @@ int __sock_create(struct net *net, int family, int type, int protocol, - return -EAFNOSUPPORT; - if (type < 0 || type >= SOCK_MAX) - return -EINVAL; -+ if (protocol < 0) -+ return -EINVAL; - - /* Compatibility. - -@@ -1339,6 +1344,16 @@ SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol) - if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK)) - flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK; - -+ if(!gr_search_socket(family, type, protocol)) { -+ retval = -EACCES; -+ goto out; -+ } -+ -+ if (gr_handle_sock_all(family, type, protocol)) { -+ retval = -EACCES; -+ goto out; -+ } -+ - retval = sock_create(family, type, protocol, &sock); - if (retval < 0) - goto out; -@@ -1451,6 +1466,14 @@ SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen) - if (sock) { - err = move_addr_to_kernel(umyaddr, addrlen, &address); - if (err >= 0) { -+ if (gr_handle_sock_server((struct sockaddr *)&address)) { -+ err = -EACCES; -+ goto error; -+ } -+ err = gr_search_bind(sock, (struct sockaddr_in *)&address); -+ if (err) -+ goto error; -+ - err = security_socket_bind(sock, - (struct sockaddr *)&address, - addrlen); -@@ -1459,6 +1482,7 @@ SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen) - (struct sockaddr *) - &address, addrlen); - } -+error: - fput_light(sock->file, fput_needed); - } - return err; -@@ -1482,10 +1506,20 @@ SYSCALL_DEFINE2(listen, int, fd, int, backlog) - if ((unsigned)backlog > somaxconn) - backlog = somaxconn; - -+ if (gr_handle_sock_server_other(sock->sk)) { -+ err = -EPERM; -+ goto error; -+ } -+ -+ err = gr_search_listen(sock); -+ if (err) -+ goto error; -+ - err = security_socket_listen(sock, backlog); - if (!err) - err = sock->ops->listen(sock, backlog); - -+error: - fput_light(sock->file, fput_needed); - } - return err; -@@ -1529,6 +1563,18 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr, - newsock->type = sock->type; - newsock->ops = sock->ops; - -+ if (gr_handle_sock_server_other(sock->sk)) { -+ err = -EPERM; -+ sock_release(newsock); -+ goto out_put; -+ } -+ -+ err = gr_search_accept(sock); -+ if (err) { -+ sock_release(newsock); -+ goto out_put; -+ } -+ - /* - * We don't need try_module_get here, as the listening socket (sock) - * has the protocol module (sock->ops->owner) held. -@@ -1567,6 +1613,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr, - fd_install(newfd, newfile); - err = newfd; - -+ gr_attach_curr_ip(newsock->sk); -+ - out_put: - fput_light(sock->file, fput_needed); - out: -@@ -1599,6 +1647,7 @@ SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr, - int, addrlen) - { - struct socket *sock; -+ struct sockaddr *sck; - struct sockaddr_storage address; - int err, fput_needed; - -@@ -1609,6 +1658,17 @@ SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr, - if (err < 0) - goto out_put; - -+ sck = (struct sockaddr *)&address; -+ -+ if (gr_handle_sock_client(sck)) { -+ err = -EACCES; -+ goto out_put; -+ } -+ -+ err = gr_search_connect(sock, (struct sockaddr_in *)sck); -+ if (err) -+ goto out_put; -+ - err = - security_socket_connect(sock, (struct sockaddr *)&address, addrlen); - if (err) -@@ -1966,7 +2026,7 @@ static int __sys_sendmsg(struct socket *sock, struct msghdr __user *msg, - * checking falls down on this. - */ - if (copy_from_user(ctl_buf, -- (void __user __force *)msg_sys->msg_control, -+ (void __force_user *)msg_sys->msg_control, - ctl_len)) - goto out_freectl; - msg_sys->msg_control = ctl_buf; -@@ -2136,7 +2196,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg, - * kernel msghdr to use the kernel address space) - */ - -- uaddr = (__force void __user *)msg_sys->msg_name; -+ uaddr = (void __force_user *)msg_sys->msg_name; - uaddr_len = COMPAT_NAMELEN(msg); - if (MSG_CMSG_COMPAT & flags) { - err = verify_compat_iovec(msg_sys, iov, &addr, VERIFY_WRITE); -@@ -2758,7 +2818,7 @@ static int ethtool_ioctl(struct net *net, struct compat_ifreq __user *ifr32) - } - - ifr = compat_alloc_user_space(buf_size); -- rxnfc = (void *)ifr + ALIGN(sizeof(struct ifreq), 8); -+ rxnfc = (void __user *)ifr + ALIGN(sizeof(struct ifreq), 8); - - if (copy_in_user(&ifr->ifr_name, &ifr32->ifr_name, IFNAMSIZ)) - return -EFAULT; -@@ -2782,12 +2842,12 @@ static int ethtool_ioctl(struct net *net, struct compat_ifreq __user *ifr32) - offsetof(struct ethtool_rxnfc, fs.ring_cookie)); - - if (copy_in_user(rxnfc, compat_rxnfc, -- (void *)(&rxnfc->fs.m_ext + 1) - -- (void *)rxnfc) || -+ (void __user *)(&rxnfc->fs.m_ext + 1) - -+ (void __user *)rxnfc) || - copy_in_user(&rxnfc->fs.ring_cookie, - &compat_rxnfc->fs.ring_cookie, -- (void *)(&rxnfc->fs.location + 1) - -- (void *)&rxnfc->fs.ring_cookie) || -+ (void __user *)(&rxnfc->fs.location + 1) - -+ (void __user *)&rxnfc->fs.ring_cookie) || - copy_in_user(&rxnfc->rule_cnt, &compat_rxnfc->rule_cnt, - sizeof(rxnfc->rule_cnt))) - return -EFAULT; -@@ -2799,12 +2859,12 @@ static int ethtool_ioctl(struct net *net, struct compat_ifreq __user *ifr32) - - if (convert_out) { - if (copy_in_user(compat_rxnfc, rxnfc, -- (const void *)(&rxnfc->fs.m_ext + 1) - -- (const void *)rxnfc) || -+ (const void __user *)(&rxnfc->fs.m_ext + 1) - -+ (const void __user *)rxnfc) || - copy_in_user(&compat_rxnfc->fs.ring_cookie, - &rxnfc->fs.ring_cookie, -- (const void *)(&rxnfc->fs.location + 1) - -- (const void *)&rxnfc->fs.ring_cookie) || -+ (const void __user *)(&rxnfc->fs.location + 1) - -+ (const void __user *)&rxnfc->fs.ring_cookie) || - copy_in_user(&compat_rxnfc->rule_cnt, &rxnfc->rule_cnt, - sizeof(rxnfc->rule_cnt))) - return -EFAULT; -@@ -2874,7 +2934,7 @@ static int bond_ioctl(struct net *net, unsigned int cmd, - old_fs = get_fs(); - set_fs(KERNEL_DS); - err = dev_ioctl(net, cmd, -- (struct ifreq __user __force *) &kifr); -+ (struct ifreq __force_user *) &kifr); - set_fs(old_fs); - - return err; -@@ -2983,7 +3043,7 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd, - - old_fs = get_fs(); - set_fs(KERNEL_DS); -- err = dev_ioctl(net, cmd, (void __user __force *)&ifr); -+ err = dev_ioctl(net, cmd, (void __force_user *)&ifr); - set_fs(old_fs); - - if (cmd == SIOCGIFMAP && !err) { -@@ -3088,7 +3148,7 @@ static int routing_ioctl(struct net *net, struct socket *sock, - ret |= __get_user(rtdev, &(ur4->rt_dev)); - if (rtdev) { - ret |= copy_from_user(devname, compat_ptr(rtdev), 15); -- r4.rt_dev = (char __user __force *)devname; -+ r4.rt_dev = (char __force_user *)devname; - devname[15] = 0; - } else - r4.rt_dev = NULL; -@@ -3314,8 +3374,8 @@ int kernel_getsockopt(struct socket *sock, int level, int optname, - int __user *uoptlen; - int err; - -- uoptval = (char __user __force *) optval; -- uoptlen = (int __user __force *) optlen; -+ uoptval = (char __force_user *) optval; -+ uoptlen = (int __force_user *) optlen; - - set_fs(KERNEL_DS); - if (level == SOL_SOCKET) -@@ -3335,7 +3395,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname, - char __user *uoptval; - int err; - -- uoptval = (char __user __force *) optval; -+ uoptval = (char __force_user *) optval; - - set_fs(KERNEL_DS); - if (level == SOL_SOCKET) -diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c -index 994cfea..5343b6b 100644 ---- a/net/sunrpc/sched.c -+++ b/net/sunrpc/sched.c -@@ -240,9 +240,9 @@ static int rpc_wait_bit_killable(void *word) - #ifdef RPC_DEBUG - static void rpc_task_set_debuginfo(struct rpc_task *task) - { -- static atomic_t rpc_pid; -+ static atomic_unchecked_t rpc_pid; - -- task->tk_pid = atomic_inc_return(&rpc_pid); -+ task->tk_pid = atomic_inc_return_unchecked(&rpc_pid); - } - #else - static inline void rpc_task_set_debuginfo(struct rpc_task *task) -diff --git a/net/sunrpc/xprtrdma/svc_rdma.c b/net/sunrpc/xprtrdma/svc_rdma.c -index 8343737..677025e 100644 ---- a/net/sunrpc/xprtrdma/svc_rdma.c -+++ b/net/sunrpc/xprtrdma/svc_rdma.c -@@ -62,15 +62,15 @@ unsigned int svcrdma_max_req_size = RPCRDMA_MAX_REQ_SIZE; - static unsigned int min_max_inline = 4096; - static unsigned int max_max_inline = 65536; - --atomic_t rdma_stat_recv; --atomic_t rdma_stat_read; --atomic_t rdma_stat_write; --atomic_t rdma_stat_sq_starve; --atomic_t rdma_stat_rq_starve; --atomic_t rdma_stat_rq_poll; --atomic_t rdma_stat_rq_prod; --atomic_t rdma_stat_sq_poll; --atomic_t rdma_stat_sq_prod; -+atomic_unchecked_t rdma_stat_recv; -+atomic_unchecked_t rdma_stat_read; -+atomic_unchecked_t rdma_stat_write; -+atomic_unchecked_t rdma_stat_sq_starve; -+atomic_unchecked_t rdma_stat_rq_starve; -+atomic_unchecked_t rdma_stat_rq_poll; -+atomic_unchecked_t rdma_stat_rq_prod; -+atomic_unchecked_t rdma_stat_sq_poll; -+atomic_unchecked_t rdma_stat_sq_prod; - - /* Temporary NFS request map and context caches */ - struct kmem_cache *svc_rdma_map_cachep; -@@ -110,7 +110,7 @@ static int read_reset_stat(ctl_table *table, int write, - len -= *ppos; - if (len > *lenp) - len = *lenp; -- if (len && copy_to_user(buffer, str_buf, len)) -+ if (len > sizeof str_buf || (len && copy_to_user(buffer, str_buf, len))) - return -EFAULT; - *lenp = len; - *ppos += len; -@@ -151,63 +151,63 @@ static ctl_table svcrdma_parm_table[] = { - { - .procname = "rdma_stat_read", - .data = &rdma_stat_read, -- .maxlen = sizeof(atomic_t), -+ .maxlen = sizeof(atomic_unchecked_t), - .mode = 0644, - .proc_handler = read_reset_stat, - }, - { - .procname = "rdma_stat_recv", - .data = &rdma_stat_recv, -- .maxlen = sizeof(atomic_t), -+ .maxlen = sizeof(atomic_unchecked_t), - .mode = 0644, - .proc_handler = read_reset_stat, - }, - { - .procname = "rdma_stat_write", - .data = &rdma_stat_write, -- .maxlen = sizeof(atomic_t), -+ .maxlen = sizeof(atomic_unchecked_t), - .mode = 0644, - .proc_handler = read_reset_stat, - }, - { - .procname = "rdma_stat_sq_starve", - .data = &rdma_stat_sq_starve, -- .maxlen = sizeof(atomic_t), -+ .maxlen = sizeof(atomic_unchecked_t), - .mode = 0644, - .proc_handler = read_reset_stat, - }, - { - .procname = "rdma_stat_rq_starve", - .data = &rdma_stat_rq_starve, -- .maxlen = sizeof(atomic_t), -+ .maxlen = sizeof(atomic_unchecked_t), - .mode = 0644, - .proc_handler = read_reset_stat, - }, - { - .procname = "rdma_stat_rq_poll", - .data = &rdma_stat_rq_poll, -- .maxlen = sizeof(atomic_t), -+ .maxlen = sizeof(atomic_unchecked_t), - .mode = 0644, - .proc_handler = read_reset_stat, - }, - { - .procname = "rdma_stat_rq_prod", - .data = &rdma_stat_rq_prod, -- .maxlen = sizeof(atomic_t), -+ .maxlen = sizeof(atomic_unchecked_t), - .mode = 0644, - .proc_handler = read_reset_stat, - }, - { - .procname = "rdma_stat_sq_poll", - .data = &rdma_stat_sq_poll, -- .maxlen = sizeof(atomic_t), -+ .maxlen = sizeof(atomic_unchecked_t), - .mode = 0644, - .proc_handler = read_reset_stat, - }, - { - .procname = "rdma_stat_sq_prod", - .data = &rdma_stat_sq_prod, -- .maxlen = sizeof(atomic_t), -+ .maxlen = sizeof(atomic_unchecked_t), - .mode = 0644, - .proc_handler = read_reset_stat, - }, -diff --git a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c -index 41cb63b..c4a1489 100644 ---- a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c -+++ b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c -@@ -501,7 +501,7 @@ next_sge: - svc_rdma_put_context(ctxt, 0); - goto out; - } -- atomic_inc(&rdma_stat_read); -+ atomic_inc_unchecked(&rdma_stat_read); - - if (read_wr.num_sge < chl_map->ch[ch_no].count) { - chl_map->ch[ch_no].count -= read_wr.num_sge; -@@ -611,7 +611,7 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp) - dto_q); - list_del_init(&ctxt->dto_q); - } else { -- atomic_inc(&rdma_stat_rq_starve); -+ atomic_inc_unchecked(&rdma_stat_rq_starve); - clear_bit(XPT_DATA, &xprt->xpt_flags); - ctxt = NULL; - } -@@ -631,7 +631,7 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp) - dprintk("svcrdma: processing ctxt=%p on xprt=%p, rqstp=%p, status=%d\n", - ctxt, rdma_xprt, rqstp, ctxt->wc_status); - BUG_ON(ctxt->wc_status != IB_WC_SUCCESS); -- atomic_inc(&rdma_stat_recv); -+ atomic_inc_unchecked(&rdma_stat_recv); - - /* Build up the XDR from the receive buffers. */ - rdma_build_arg_xdr(rqstp, ctxt, ctxt->byte_len); -diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c -index 42eb7ba..c887c45 100644 ---- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c -+++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c -@@ -362,7 +362,7 @@ static int send_write(struct svcxprt_rdma *xprt, struct svc_rqst *rqstp, - write_wr.wr.rdma.remote_addr = to; - - /* Post It */ -- atomic_inc(&rdma_stat_write); -+ atomic_inc_unchecked(&rdma_stat_write); - if (svc_rdma_send(xprt, &write_wr)) - goto err; - return 0; -diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c -index 73b428b..5f3f8f3 100644 ---- a/net/sunrpc/xprtrdma/svc_rdma_transport.c -+++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c -@@ -292,7 +292,7 @@ static void rq_cq_reap(struct svcxprt_rdma *xprt) - return; - - ib_req_notify_cq(xprt->sc_rq_cq, IB_CQ_NEXT_COMP); -- atomic_inc(&rdma_stat_rq_poll); -+ atomic_inc_unchecked(&rdma_stat_rq_poll); - - while ((ret = ib_poll_cq(xprt->sc_rq_cq, 1, &wc)) > 0) { - ctxt = (struct svc_rdma_op_ctxt *)(unsigned long)wc.wr_id; -@@ -314,7 +314,7 @@ static void rq_cq_reap(struct svcxprt_rdma *xprt) - } - - if (ctxt) -- atomic_inc(&rdma_stat_rq_prod); -+ atomic_inc_unchecked(&rdma_stat_rq_prod); - - set_bit(XPT_DATA, &xprt->sc_xprt.xpt_flags); - /* -@@ -386,7 +386,7 @@ static void sq_cq_reap(struct svcxprt_rdma *xprt) - return; - - ib_req_notify_cq(xprt->sc_sq_cq, IB_CQ_NEXT_COMP); -- atomic_inc(&rdma_stat_sq_poll); -+ atomic_inc_unchecked(&rdma_stat_sq_poll); - while ((ret = ib_poll_cq(cq, 1, &wc)) > 0) { - if (wc.status != IB_WC_SUCCESS) - /* Close the transport */ -@@ -404,7 +404,7 @@ static void sq_cq_reap(struct svcxprt_rdma *xprt) - } - - if (ctxt) -- atomic_inc(&rdma_stat_sq_prod); -+ atomic_inc_unchecked(&rdma_stat_sq_prod); - } - - static void sq_comp_handler(struct ib_cq *cq, void *cq_context) -@@ -1266,7 +1266,7 @@ int svc_rdma_send(struct svcxprt_rdma *xprt, struct ib_send_wr *wr) - spin_lock_bh(&xprt->sc_lock); - if (xprt->sc_sq_depth < atomic_read(&xprt->sc_sq_count) + wr_count) { - spin_unlock_bh(&xprt->sc_lock); -- atomic_inc(&rdma_stat_sq_starve); -+ atomic_inc_unchecked(&rdma_stat_sq_starve); - - /* See if we can opportunistically reap SQ WR to make room */ - sq_cq_reap(xprt); -diff --git a/net/sysctl_net.c b/net/sysctl_net.c -index c3e65ae..f512a2b 100644 ---- a/net/sysctl_net.c -+++ b/net/sysctl_net.c -@@ -47,7 +47,7 @@ static int net_ctl_permissions(struct ctl_table_root *root, - struct ctl_table *table) - { - /* Allow network administrator to have same access as root. */ -- if (capable(CAP_NET_ADMIN)) { -+ if (capable_nolog(CAP_NET_ADMIN)) { - int mode = (table->mode >> 6) & 7; - return (mode << 6) | (mode << 3) | mode; - } -diff --git a/net/tipc/link.c b/net/tipc/link.c -index b4b9b30..5b62131 100644 ---- a/net/tipc/link.c -+++ b/net/tipc/link.c -@@ -1203,7 +1203,7 @@ static int link_send_sections_long(struct tipc_port *sender, - struct tipc_msg fragm_hdr; - struct sk_buff *buf, *buf_chain, *prev; - u32 fragm_crs, fragm_rest, hsz, sect_rest; -- const unchar *sect_crs; -+ const unchar __user *sect_crs; - int curr_sect; - u32 fragm_no; - -@@ -1247,7 +1247,7 @@ again: - - if (!sect_rest) { - sect_rest = msg_sect[++curr_sect].iov_len; -- sect_crs = (const unchar *)msg_sect[curr_sect].iov_base; -+ sect_crs = (const unchar __user *)msg_sect[curr_sect].iov_base; - } - - if (sect_rest < fragm_rest) -@@ -1266,7 +1266,7 @@ error: - } - } else - skb_copy_to_linear_data_offset(buf, fragm_crs, -- sect_crs, sz); -+ (const void __force_kernel *)sect_crs, sz); - sect_crs += sz; - sect_rest -= sz; - fragm_crs += sz; -diff --git a/net/tipc/msg.c b/net/tipc/msg.c -index e3afe16..333ea83 100644 ---- a/net/tipc/msg.c -+++ b/net/tipc/msg.c -@@ -99,7 +99,7 @@ int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect, - msg_sect[cnt].iov_len); - else - skb_copy_to_linear_data_offset(*buf, pos, -- msg_sect[cnt].iov_base, -+ (const void __force_kernel *)msg_sect[cnt].iov_base, - msg_sect[cnt].iov_len); - pos += msg_sect[cnt].iov_len; - } -diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c -index b2964e9..fdf2e27 100644 ---- a/net/tipc/subscr.c -+++ b/net/tipc/subscr.c -@@ -101,7 +101,7 @@ static void subscr_send_event(struct tipc_subscription *sub, - { - struct iovec msg_sect; - -- msg_sect.iov_base = (void *)&sub->evt; -+ msg_sect.iov_base = (void __force_user *)&sub->evt; - msg_sect.iov_len = sizeof(struct tipc_event); - - sub->evt.event = htohl(event, sub->swap); -diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c -index d510353..26c8a32 100644 ---- a/net/unix/af_unix.c -+++ b/net/unix/af_unix.c -@@ -779,6 +779,12 @@ static struct sock *unix_find_other(struct net *net, - err = -ECONNREFUSED; - if (!S_ISSOCK(inode->i_mode)) - goto put_fail; -+ -+ if (!gr_acl_handle_unix(path.dentry, path.mnt)) { -+ err = -EACCES; -+ goto put_fail; -+ } -+ - u = unix_find_socket_byinode(inode); - if (!u) - goto put_fail; -@@ -799,6 +805,13 @@ static struct sock *unix_find_other(struct net *net, - if (u) { - struct dentry *dentry; - dentry = unix_sk(u)->path.dentry; -+ -+ if (!gr_handle_chroot_unix(pid_vnr(u->sk_peer_pid))) { -+ err = -EPERM; -+ sock_put(u); -+ goto fail; -+ } -+ - if (dentry) - touch_atime(&unix_sk(u)->path); - } else -@@ -881,11 +894,18 @@ static int unix_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) - err = security_path_mknod(&path, dentry, mode, 0); - if (err) - goto out_mknod_drop_write; -+ if (!gr_acl_handle_mknod(dentry, path.dentry, path.mnt, mode)) { -+ err = -EACCES; -+ goto out_mknod_drop_write; -+ } - err = vfs_mknod(path.dentry->d_inode, dentry, mode, 0); - out_mknod_drop_write: - mnt_drop_write(path.mnt); - if (err) - goto out_mknod_dput; -+ -+ gr_handle_create(dentry, path.mnt); -+ - mutex_unlock(&path.dentry->d_inode->i_mutex); - dput(path.dentry); - path.dentry = dentry; -diff --git a/net/wireless/core.h b/net/wireless/core.h -index 3ac2dd0..fbe533e 100644 ---- a/net/wireless/core.h -+++ b/net/wireless/core.h -@@ -27,7 +27,7 @@ struct cfg80211_registered_device { - struct mutex mtx; - - /* rfkill support */ -- struct rfkill_ops rfkill_ops; -+ rfkill_ops_no_const rfkill_ops; - struct rfkill *rfkill; - struct work_struct rfkill_sync; - -diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c -index af648e0..6185d3a 100644 ---- a/net/wireless/wext-core.c -+++ b/net/wireless/wext-core.c -@@ -747,8 +747,7 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd, - */ - - /* Support for very large requests */ -- if ((descr->flags & IW_DESCR_FLAG_NOMAX) && -- (user_length > descr->max_tokens)) { -+ if (user_length > descr->max_tokens) { - /* Allow userspace to GET more than max so - * we can support any size GET requests. - * There is still a limit : -ENOMEM. -@@ -787,22 +786,6 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd, - } - } - -- if (IW_IS_GET(cmd) && !(descr->flags & IW_DESCR_FLAG_NOMAX)) { -- /* -- * If this is a GET, but not NOMAX, it means that the extra -- * data is not bounded by userspace, but by max_tokens. Thus -- * set the length to max_tokens. This matches the extra data -- * allocation. -- * The driver should fill it with the number of tokens it -- * provided, and it may check iwp->length rather than having -- * knowledge of max_tokens. If the driver doesn't change the -- * iwp->length, this ioctl just copies back max_token tokens -- * filled with zeroes. Hopefully the driver isn't claiming -- * them to be valid data. -- */ -- iwp->length = descr->max_tokens; -- } -- - err = handler(dev, info, (union iwreq_data *) iwp, extra); - - iwp->length += essid_compat; -diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c -index a15d2a0..12142af 100644 ---- a/net/xfrm/xfrm_policy.c -+++ b/net/xfrm/xfrm_policy.c -@@ -299,7 +299,7 @@ static void xfrm_policy_kill(struct xfrm_policy *policy) - { - policy->walk.dead = 1; - -- atomic_inc(&policy->genid); -+ atomic_inc_unchecked(&policy->genid); - - if (del_timer(&policy->timer)) - xfrm_pol_put(policy); -@@ -583,7 +583,7 @@ int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl) - hlist_add_head(&policy->bydst, chain); - xfrm_pol_hold(policy); - net->xfrm.policy_count[dir]++; -- atomic_inc(&flow_cache_genid); -+ atomic_inc_unchecked(&flow_cache_genid); - if (delpol) - __xfrm_policy_unlink(delpol, dir); - policy->index = delpol ? delpol->index : xfrm_gen_index(net, dir); -@@ -1530,7 +1530,7 @@ free_dst: - goto out; - } - --static int inline -+static inline int - xfrm_dst_alloc_copy(void **target, const void *src, int size) - { - if (!*target) { -@@ -1542,7 +1542,7 @@ xfrm_dst_alloc_copy(void **target, const void *src, int size) - return 0; - } - --static int inline -+static inline int - xfrm_dst_update_parent(struct dst_entry *dst, const struct xfrm_selector *sel) - { - #ifdef CONFIG_XFRM_SUB_POLICY -@@ -1554,7 +1554,7 @@ xfrm_dst_update_parent(struct dst_entry *dst, const struct xfrm_selector *sel) - #endif - } - --static int inline -+static inline int - xfrm_dst_update_origin(struct dst_entry *dst, const struct flowi *fl) - { - #ifdef CONFIG_XFRM_SUB_POLICY -@@ -1648,7 +1648,7 @@ xfrm_resolve_and_create_bundle(struct xfrm_policy **pols, int num_pols, - - xdst->num_pols = num_pols; - memcpy(xdst->pols, pols, sizeof(struct xfrm_policy*) * num_pols); -- xdst->policy_genid = atomic_read(&pols[0]->genid); -+ xdst->policy_genid = atomic_read_unchecked(&pols[0]->genid); - - return xdst; - } -@@ -2348,7 +2348,7 @@ static int xfrm_bundle_ok(struct xfrm_dst *first) - if (xdst->xfrm_genid != dst->xfrm->genid) - return 0; - if (xdst->num_pols > 0 && -- xdst->policy_genid != atomic_read(&xdst->pols[0]->genid)) -+ xdst->policy_genid != atomic_read_unchecked(&xdst->pols[0]->genid)) - return 0; - - mtu = dst_mtu(dst->child); -@@ -2885,7 +2885,7 @@ static int xfrm_policy_migrate(struct xfrm_policy *pol, - sizeof(pol->xfrm_vec[i].saddr)); - pol->xfrm_vec[i].encap_family = mp->new_family; - /* flush bundles */ -- atomic_inc(&pol->genid); -+ atomic_inc_unchecked(&pol->genid); - } - } - -diff --git a/scripts/Makefile.build b/scripts/Makefile.build -index ff1720d..ed8475e 100644 ---- a/scripts/Makefile.build -+++ b/scripts/Makefile.build -@@ -111,7 +111,7 @@ endif - endif - - # Do not include host rules unless needed --ifneq ($(hostprogs-y)$(hostprogs-m),) -+ifneq ($(hostprogs-y)$(hostprogs-m)$(hostlibs-y)$(hostlibs-m)$(hostcxxlibs-y)$(hostcxxlibs-m),) - include scripts/Makefile.host - endif - -diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean -index 686cb0d..9d653bf 100644 ---- a/scripts/Makefile.clean -+++ b/scripts/Makefile.clean -@@ -43,7 +43,8 @@ subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn)) - __clean-files := $(extra-y) $(always) \ - $(targets) $(clean-files) \ - $(host-progs) \ -- $(hostprogs-y) $(hostprogs-m) $(hostprogs-) -+ $(hostprogs-y) $(hostprogs-m) $(hostprogs-) \ -+ $(hostlibs-y) $(hostlibs-m) $(hostlibs-) - - __clean-files := $(filter-out $(no-clean-files), $(__clean-files)) - -diff --git a/scripts/Makefile.host b/scripts/Makefile.host -index 1ac414f..38575f7 100644 ---- a/scripts/Makefile.host -+++ b/scripts/Makefile.host -@@ -31,6 +31,8 @@ - # Note: Shared libraries consisting of C++ files are not supported - - __hostprogs := $(sort $(hostprogs-y) $(hostprogs-m)) -+__hostlibs := $(sort $(hostlibs-y) $(hostlibs-m)) -+__hostcxxlibs := $(sort $(hostcxxlibs-y) $(hostcxxlibs-m)) - - # C code - # Executables compiled from a single .c file -@@ -54,11 +56,15 @@ host-cxxobjs := $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs))) - # Shared libaries (only .c supported) - # Shared libraries (.so) - all .so files referenced in "xxx-objs" - host-cshlib := $(sort $(filter %.so, $(host-cobjs))) -+host-cshlib += $(sort $(filter %.so, $(__hostlibs))) -+host-cxxshlib := $(sort $(filter %.so, $(__hostcxxlibs))) - # Remove .so files from "xxx-objs" - host-cobjs := $(filter-out %.so,$(host-cobjs)) -+host-cxxobjs := $(filter-out %.so,$(host-cxxobjs)) - --#Object (.o) files used by the shared libaries -+# Object (.o) files used by the shared libaries - host-cshobjs := $(sort $(foreach m,$(host-cshlib),$($(m:.so=-objs)))) -+host-cxxshobjs := $(sort $(foreach m,$(host-cxxshlib),$($(m:.so=-objs)))) - - # output directory for programs/.o files - # hostprogs-y := tools/build may have been specified. Retrieve directory -@@ -82,7 +88,9 @@ host-cobjs := $(addprefix $(obj)/,$(host-cobjs)) - host-cxxmulti := $(addprefix $(obj)/,$(host-cxxmulti)) - host-cxxobjs := $(addprefix $(obj)/,$(host-cxxobjs)) - host-cshlib := $(addprefix $(obj)/,$(host-cshlib)) -+host-cxxshlib := $(addprefix $(obj)/,$(host-cxxshlib)) - host-cshobjs := $(addprefix $(obj)/,$(host-cshobjs)) -+host-cxxshobjs := $(addprefix $(obj)/,$(host-cxxshobjs)) - host-objdirs := $(addprefix $(obj)/,$(host-objdirs)) - - obj-dirs += $(host-objdirs) -@@ -156,6 +164,13 @@ quiet_cmd_host-cshobjs = HOSTCC -fPIC $@ - $(host-cshobjs): $(obj)/%.o: $(src)/%.c FORCE - $(call if_changed_dep,host-cshobjs) - -+# Compile .c file, create position independent .o file -+# host-cxxshobjs -> .o -+quiet_cmd_host-cxxshobjs = HOSTCXX -fPIC $@ -+ cmd_host-cxxshobjs = $(HOSTCXX) $(hostcxx_flags) -fPIC -c -o $@ $< -+$(host-cxxshobjs): $(obj)/%.o: $(src)/%.c FORCE -+ $(call if_changed_dep,host-cxxshobjs) -+ - # Link a shared library, based on position independent .o files - # *.o -> .so shared library (host-cshlib) - quiet_cmd_host-cshlib = HOSTLLD -shared $@ -@@ -165,6 +180,15 @@ quiet_cmd_host-cshlib = HOSTLLD -shared $@ - $(host-cshlib): $(obj)/%: $(host-cshobjs) FORCE - $(call if_changed,host-cshlib) - -+# Link a shared library, based on position independent .o files -+# *.o -> .so shared library (host-cxxshlib) -+quiet_cmd_host-cxxshlib = HOSTLLD -shared $@ -+ cmd_host-cxxshlib = $(HOSTCXX) $(HOSTLDFLAGS) -shared -o $@ \ -+ $(addprefix $(obj)/,$($(@F:.so=-objs))) \ -+ $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F)) -+$(host-cxxshlib): $(obj)/%: $(host-cxxshobjs) FORCE -+ $(call if_changed,host-cxxshlib) -+ - targets += $(host-csingle) $(host-cmulti) $(host-cobjs)\ -- $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) -+ $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) $(host-cxxshlib) $(host-cxxshobjs) - -diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c -index cb1f50c..cef2a7c 100644 ---- a/scripts/basic/fixdep.c -+++ b/scripts/basic/fixdep.c -@@ -161,7 +161,7 @@ static unsigned int strhash(const char *str, unsigned int sz) - /* - * Lookup a value in the configuration string. - */ --static int is_defined_config(const char *name, int len, unsigned int hash) -+static int is_defined_config(const char *name, unsigned int len, unsigned int hash) - { - struct item *aux; - -@@ -211,10 +211,10 @@ static void clear_config(void) - /* - * Record the use of a CONFIG_* word. - */ --static void use_config(const char *m, int slen) -+static void use_config(const char *m, unsigned int slen) - { - unsigned int hash = strhash(m, slen); -- int c, i; -+ unsigned int c, i; - - if (is_defined_config(m, slen, hash)) - return; -@@ -235,9 +235,9 @@ static void use_config(const char *m, int slen) - - static void parse_config_file(const char *map, size_t len) - { -- const int *end = (const int *) (map + len); -+ const unsigned int *end = (const unsigned int *) (map + len); - /* start at +1, so that p can never be < map */ -- const int *m = (const int *) map + 1; -+ const unsigned int *m = (const unsigned int *) map + 1; - const char *p, *q; - - for (; m < end; m++) { -@@ -406,7 +406,7 @@ static void print_deps(void) - static void traps(void) - { - static char test[] __attribute__((aligned(sizeof(int)))) = "CONF"; -- int *p = (int *)test; -+ unsigned int *p = (unsigned int *)test; - - if (*p != INT_CONF) { - fprintf(stderr, "fixdep: sizeof(int) != 4 or wrong endianess? %#x\n", -diff --git a/scripts/gcc-plugin.sh b/scripts/gcc-plugin.sh -new file mode 100644 -index 0000000..008ac1a ---- /dev/null -+++ b/scripts/gcc-plugin.sh -@@ -0,0 +1,17 @@ -+#!/bin/bash -+plugincc=`$1 -x c -shared - -o /dev/null -I\`$3 -print-file-name=plugin\`/include 2>&1 <<EOF -+#include "gcc-plugin.h" -+#include "tree.h" -+#include "tm.h" -+#include "rtl.h" -+#ifdef ENABLE_BUILD_WITH_CXX -+#warning $2 -+#else -+#warning $1 -+#endif -+EOF` -+if [ $? -eq 0 ] -+then -+ [[ "$plugincc" =~ "$1" ]] && echo "$1" -+ [[ "$plugincc" =~ "$2" ]] && echo "$2" -+fi -diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c -index 44ddaa5..a3119bd 100644 ---- a/scripts/mod/file2alias.c -+++ b/scripts/mod/file2alias.c -@@ -128,7 +128,7 @@ static void device_id_check(const char *modname, const char *device_id, - unsigned long size, unsigned long id_size, - void *symval) - { -- int i; -+ unsigned int i; - - if (size % id_size || size < id_size) { - if (cross_build != 0) -@@ -158,7 +158,7 @@ static void device_id_check(const char *modname, const char *device_id, - /* USB is special because the bcdDevice can be matched against a numeric range */ - /* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipN" */ - static void do_usb_entry(struct usb_device_id *id, -- unsigned int bcdDevice_initial, int bcdDevice_initial_digits, -+ unsigned int bcdDevice_initial, unsigned int bcdDevice_initial_digits, - unsigned char range_lo, unsigned char range_hi, - unsigned char max, struct module *mod) - { -@@ -259,7 +259,7 @@ static void do_usb_entry_multi(struct usb_device_id *id, struct module *mod) - { - unsigned int devlo, devhi; - unsigned char chi, clo, max; -- int ndigits; -+ unsigned int ndigits; - - id->match_flags = TO_NATIVE(id->match_flags); - id->idVendor = TO_NATIVE(id->idVendor); -@@ -501,7 +501,7 @@ static void do_pnp_device_entry(void *symval, unsigned long size, - for (i = 0; i < count; i++) { - const char *id = (char *)devs[i].id; - char acpi_id[sizeof(devs[0].id)]; -- int j; -+ unsigned int j; - - buf_printf(&mod->dev_table_buf, - "MODULE_ALIAS(\"pnp:d%s*\");\n", id); -@@ -531,7 +531,7 @@ static void do_pnp_card_entries(void *symval, unsigned long size, - - for (j = 0; j < PNP_MAX_DEVICES; j++) { - const char *id = (char *)card->devs[j].id; -- int i2, j2; -+ unsigned int i2, j2; - int dup = 0; - - if (!id[0]) -@@ -557,7 +557,7 @@ static void do_pnp_card_entries(void *symval, unsigned long size, - /* add an individual alias for every device entry */ - if (!dup) { - char acpi_id[sizeof(card->devs[0].id)]; -- int k; -+ unsigned int k; - - buf_printf(&mod->dev_table_buf, - "MODULE_ALIAS(\"pnp:d%s*\");\n", id); -@@ -882,7 +882,7 @@ static void dmi_ascii_filter(char *d, const char *s) - static int do_dmi_entry(const char *filename, struct dmi_system_id *id, - char *alias) - { -- int i, j; -+ unsigned int i, j; - - sprintf(alias, "dmi*"); - -diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c -index c4e7d15..4241aef 100644 ---- a/scripts/mod/modpost.c -+++ b/scripts/mod/modpost.c -@@ -922,6 +922,7 @@ enum mismatch { - ANY_INIT_TO_ANY_EXIT, - ANY_EXIT_TO_ANY_INIT, - EXPORT_TO_INIT_EXIT, -+ DATA_TO_TEXT - }; - - struct sectioncheck { -@@ -1030,6 +1031,12 @@ const struct sectioncheck sectioncheck[] = { - .tosec = { INIT_SECTIONS, EXIT_SECTIONS, NULL }, - .mismatch = EXPORT_TO_INIT_EXIT, - .symbol_white_list = { DEFAULT_SYMBOL_WHITE_LIST, NULL }, -+}, -+/* Do not reference code from writable data */ -+{ -+ .fromsec = { DATA_SECTIONS, NULL }, -+ .tosec = { TEXT_SECTIONS, NULL }, -+ .mismatch = DATA_TO_TEXT - } - }; - -@@ -1152,10 +1159,10 @@ static Elf_Sym *find_elf_symbol(struct elf_info *elf, Elf64_Sword addr, - continue; - if (ELF_ST_TYPE(sym->st_info) == STT_SECTION) - continue; -- if (sym->st_value == addr) -- return sym; - /* Find a symbol nearby - addr are maybe negative */ - d = sym->st_value - addr; -+ if (d == 0) -+ return sym; - if (d < 0) - d = addr - sym->st_value; - if (d < distance) { -@@ -1434,6 +1441,14 @@ static void report_sec_mismatch(const char *modname, - tosym, prl_to, prl_to, tosym); - free(prl_to); - break; -+ case DATA_TO_TEXT: -+/* -+ fprintf(stderr, -+ "The variable %s references\n" -+ "the %s %s%s%s\n", -+ fromsym, to, sec2annotation(tosec), tosym, to_p); -+*/ -+ break; - } - fprintf(stderr, "\n"); - } -@@ -1668,7 +1683,7 @@ static void section_rel(const char *modname, struct elf_info *elf, - static void check_sec_ref(struct module *mod, const char *modname, - struct elf_info *elf) - { -- int i; -+ unsigned int i; - Elf_Shdr *sechdrs = elf->sechdrs; - - /* Walk through all sections */ -@@ -1766,7 +1781,7 @@ void __attribute__((format(printf, 2, 3))) buf_printf(struct buffer *buf, - va_end(ap); - } - --void buf_write(struct buffer *buf, const char *s, int len) -+void buf_write(struct buffer *buf, const char *s, unsigned int len) - { - if (buf->size - buf->pos < len) { - buf->size += len + SZ; -@@ -1984,7 +1999,7 @@ static void write_if_changed(struct buffer *b, const char *fname) - if (fstat(fileno(file), &st) < 0) - goto close_write; - -- if (st.st_size != b->pos) -+ if (st.st_size != (off_t)b->pos) - goto close_write; - - tmp = NOFAIL(malloc(b->pos)); -diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h -index 51207e4..f7d603d 100644 ---- a/scripts/mod/modpost.h -+++ b/scripts/mod/modpost.h -@@ -92,15 +92,15 @@ void *do_nofail(void *ptr, const char *expr); - - struct buffer { - char *p; -- int pos; -- int size; -+ unsigned int pos; -+ unsigned int size; - }; - - void __attribute__((format(printf, 2, 3))) - buf_printf(struct buffer *buf, const char *fmt, ...); - - void --buf_write(struct buffer *buf, const char *s, int len); -+buf_write(struct buffer *buf, const char *s, unsigned int len); - - struct module { - struct module *next; -diff --git a/scripts/mod/sumversion.c b/scripts/mod/sumversion.c -index 9dfcd6d..099068e 100644 ---- a/scripts/mod/sumversion.c -+++ b/scripts/mod/sumversion.c -@@ -470,7 +470,7 @@ static void write_version(const char *filename, const char *sum, - goto out; - } - -- if (write(fd, sum, strlen(sum)+1) != strlen(sum)+1) { -+ if (write(fd, sum, strlen(sum)+1) != (ssize_t)strlen(sum)+1) { - warn("writing sum in %s failed: %s\n", - filename, strerror(errno)); - goto out; -diff --git a/scripts/pnmtologo.c b/scripts/pnmtologo.c -index 5c11312..72742b5 100644 ---- a/scripts/pnmtologo.c -+++ b/scripts/pnmtologo.c -@@ -237,14 +237,14 @@ static void write_header(void) - fprintf(out, " * Linux logo %s\n", logoname); - fputs(" */\n\n", out); - fputs("#include <linux/linux_logo.h>\n\n", out); -- fprintf(out, "static unsigned char %s_data[] __initdata = {\n", -+ fprintf(out, "static unsigned char %s_data[] = {\n", - logoname); - } - - static void write_footer(void) - { - fputs("\n};\n\n", out); -- fprintf(out, "const struct linux_logo %s __initconst = {\n", logoname); -+ fprintf(out, "const struct linux_logo %s = {\n", logoname); - fprintf(out, "\t.type\t\t= %s,\n", logo_types[logo_type]); - fprintf(out, "\t.width\t\t= %d,\n", logo_width); - fprintf(out, "\t.height\t\t= %d,\n", logo_height); -@@ -374,7 +374,7 @@ static void write_logo_clut224(void) - fputs("\n};\n\n", out); - - /* write logo clut */ -- fprintf(out, "static unsigned char %s_clut[] __initdata = {\n", -+ fprintf(out, "static unsigned char %s_clut[] = {\n", - logoname); - write_hex_cnt = 0; - for (i = 0; i < logo_clutsize; i++) { -diff --git a/security/Kconfig b/security/Kconfig -index ccc61f8..3334dd6 100644 ---- a/security/Kconfig -+++ b/security/Kconfig -@@ -4,6 +4,849 @@ - - menu "Security options" - -+menu "Grsecurity" -+ -+config GRKERNSEC -+ bool "Grsecurity" -+ select CRYPTO -+ select CRYPTO_SHA256 -+ help -+ If you say Y here, you will be able to configure many features -+ that will enhance the security of your system. It is highly -+ recommended that you say Y here and read through the help -+ for each option so that you fully understand the features and -+ can evaluate their usefulness for your machine. -+ -+choice -+ prompt "Configuration Method" -+ depends on GRKERNSEC -+ default GRKERNSEC_CONFIG_CUSTOM -+ help -+ -+config GRKERNSEC_CONFIG_AUTO -+ bool "Automatic" -+ help -+ If you choose this configuration method, you'll be able to answer a small -+ number of simple questions about how you plan to use this kernel. -+ The settings of grsecurity and PaX will be automatically configured for -+ the highest commonly-used settings within the provided constraints. -+ -+ If you require additional configuration, custom changes can still be made -+ from the "custom configuration" menu. -+ -+config GRKERNSEC_CONFIG_CUSTOM -+ bool "Custom" -+ help -+ If you choose this configuration method, you'll be able to configure all -+ grsecurity and PaX settings manually. Via this method, no options are -+ automatically enabled. -+ -+endchoice -+ -+choice -+ prompt "Usage Type" -+ depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO) -+ default GRKERNSEC_CONFIG_SERVER -+ help -+ -+config GRKERNSEC_CONFIG_SERVER -+ bool "Server" -+ help -+ Choose this option if you plan to use this kernel on a server. -+ -+config GRKERNSEC_CONFIG_DESKTOP -+ bool "Desktop" -+ help -+ Choose this option if you plan to use this kernel on a desktop. -+ -+endchoice -+ -+choice -+ prompt "Virtualization Type" -+ depends on (GRKERNSEC && X86 && GRKERNSEC_CONFIG_AUTO) -+ default GRKERNSEC_CONFIG_VIRT_NONE -+ help -+ -+config GRKERNSEC_CONFIG_VIRT_NONE -+ bool "None" -+ help -+ Choose this option if this kernel will be run on bare metal. -+ -+config GRKERNSEC_CONFIG_VIRT_GUEST -+ bool "Guest" -+ help -+ Choose this option if this kernel will be run as a VM guest. -+ -+config GRKERNSEC_CONFIG_VIRT_HOST -+ bool "Host" -+ help -+ Choose this option if this kernel will be run as a VM host. -+ -+endchoice -+ -+choice -+ prompt "Virtualization Hardware" -+ depends on (GRKERNSEC && X86 && GRKERNSEC_CONFIG_AUTO && (GRKERNSEC_CONFIG_VIRT_GUEST || GRKERNSEC_CONFIG_VIRT_HOST)) -+ help -+ -+config GRKERNSEC_CONFIG_VIRT_EPT -+ bool "EPT/RVI Processor Support" -+ depends on X86 -+ help -+ Choose this option if your CPU supports the EPT or RVI features of 2nd-gen -+ hardware virtualization. This allows for additional kernel hardening protections -+ to operate without additional performance impact. -+ -+ To see if your Intel processor supports EPT, see: -+ http://ark.intel.com/Products/VirtualizationTechnology -+ (Most Core i3/5/7 support EPT) -+ -+ To see if your AMD processor supports RVI, see: -+ http://support.amd.com/us/kbarticles/Pages/GPU120AMDRVICPUsHyperVWin8.aspx -+ -+config GRKERNSEC_CONFIG_VIRT_SOFT -+ bool "First-gen/No Hardware Virtualization" -+ help -+ Choose this option if you use an Atom/Pentium/Core 2 processor that either doesn't -+ support hardware virtualization or doesn't support the EPT/RVI extensions. -+ -+endchoice -+ -+choice -+ prompt "Virtualization Software" -+ depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO && (GRKERNSEC_CONFIG_VIRT_GUEST || GRKERNSEC_CONFIG_VIRT_HOST)) -+ help -+ -+config GRKERNSEC_CONFIG_VIRT_XEN -+ bool "Xen" -+ help -+ Choose this option if this kernel is running as a Xen guest or host. -+ -+config GRKERNSEC_CONFIG_VIRT_VMWARE -+ bool "VMWare" -+ help -+ Choose this option if this kernel is running as a VMWare guest or host. -+ -+config GRKERNSEC_CONFIG_VIRT_KVM -+ bool "KVM" -+ help -+ Choose this option if this kernel is running as a KVM guest or host. -+ -+config GRKERNSEC_CONFIG_VIRT_VIRTUALBOX -+ bool "VirtualBox" -+ help -+ Choose this option if this kernel is running as a VirtualBox guest or host. -+ -+endchoice -+ -+choice -+ prompt "Required Priorities" -+ depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO) -+ default GRKERNSEC_CONFIG_PRIORITY_PERF -+ help -+ -+config GRKERNSEC_CONFIG_PRIORITY_PERF -+ bool "Performance" -+ help -+ Choose this option if performance is of highest priority for this deployment -+ of grsecurity. Features like UDEREF on a 64bit kernel, kernel stack clearing, -+ and freed memory sanitizing will be disabled. -+ -+config GRKERNSEC_CONFIG_PRIORITY_SECURITY -+ bool "Security" -+ help -+ Choose this option if security is of highest priority for this deployment of -+ grsecurity. UDEREF, kernel stack clearing, and freed memory sanitizing will -+ be enabled for this kernel. In a worst-case scenario, these features can -+ introduce a 20% performance hit (UDEREF on x64 contributing half of this hit). -+ -+endchoice -+ -+menu "Default Special Groups" -+depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO) -+ -+config GRKERNSEC_PROC_GID -+ int "GID exempted from /proc restrictions" -+ default 1001 -+ help -+ Setting this GID determines which group will be exempted from -+ grsecurity's /proc restrictions, allowing users of the specified -+ group to view network statistics and the existence of other users' -+ processes on the system. -+ -+config GRKERNSEC_TPE_GID -+ int "GID for untrusted users" -+ default 1005 -+ help -+ Setting this GID determines which group untrusted users should -+ be added to. These users will be placed under grsecurity's Trusted Path -+ Execution mechanism, preventing them from executing their own binaries. -+ The users will only be able to execute binaries in directories owned and -+ writable only by the root user. -+ -+endmenu -+ -+menu "Customize Configuration" -+depends on GRKERNSEC -+ -+menu "PaX" -+ -+ config ARCH_TRACK_EXEC_LIMIT -+ bool -+ -+ config PAX_KERNEXEC_PLUGIN -+ bool -+ -+ config PAX_PER_CPU_PGD -+ bool -+ -+ config TASK_SIZE_MAX_SHIFT -+ int -+ depends on X86_64 -+ default 47 if !PAX_PER_CPU_PGD -+ default 42 if PAX_PER_CPU_PGD -+ -+ config PAX_ENABLE_PAE -+ bool -+ default y if (X86_32 && (MPENTIUM4 || MK8 || MPSC || MCORE2 || MATOM)) -+ -+config PAX -+ bool "Enable various PaX features" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on GRKERNSEC && (ALPHA || ARM || AVR32 || IA64 || MIPS || PARISC || PPC || SPARC || X86) -+ help -+ This allows you to enable various PaX features. PaX adds -+ intrusion prevention mechanisms to the kernel that reduce -+ the risks posed by exploitable memory corruption bugs. -+ -+menu "PaX Control" -+ depends on PAX -+ -+config PAX_SOFTMODE -+ bool 'Support soft mode' -+ help -+ Enabling this option will allow you to run PaX in soft mode, that -+ is, PaX features will not be enforced by default, only on executables -+ marked explicitly. You must also enable PT_PAX_FLAGS or XATTR_PAX_FLAGS -+ support as they are the only way to mark executables for soft mode use. -+ -+ Soft mode can be activated by using the "pax_softmode=1" kernel command -+ line option on boot. Furthermore you can control various PaX features -+ at runtime via the entries in /proc/sys/kernel/pax. -+ -+config PAX_EI_PAX -+ bool 'Use legacy ELF header marking' -+ default y if GRKERNSEC_CONFIG_AUTO -+ help -+ Enabling this option will allow you to control PaX features on -+ a per executable basis via the 'chpax' utility available at -+ http://pax.grsecurity.net/. The control flags will be read from -+ an otherwise reserved part of the ELF header. This marking has -+ numerous drawbacks (no support for soft-mode, toolchain does not -+ know about the non-standard use of the ELF header) therefore it -+ has been deprecated in favour of PT_PAX_FLAGS and XATTR_PAX_FLAGS -+ support. -+ -+ If you have applications not marked by the PT_PAX_FLAGS ELF program -+ header and you cannot use XATTR_PAX_FLAGS then you MUST enable this -+ option otherwise they will not get any protection. -+ -+ Note that if you enable PT_PAX_FLAGS or XATTR_PAX_FLAGS marking -+ support as well, they will override the legacy EI_PAX marks. -+ -+config PAX_PT_PAX_FLAGS -+ bool 'Use ELF program header marking' -+ default y if GRKERNSEC_CONFIG_AUTO -+ help -+ Enabling this option will allow you to control PaX features on -+ a per executable basis via the 'paxctl' utility available at -+ http://pax.grsecurity.net/. The control flags will be read from -+ a PaX specific ELF program header (PT_PAX_FLAGS). This marking -+ has the benefits of supporting both soft mode and being fully -+ integrated into the toolchain (the binutils patch is available -+ from http://pax.grsecurity.net). -+ -+ If you have applications not marked by the PT_PAX_FLAGS ELF program -+ header then you MUST enable either XATTR_PAX_FLAGS or EI_PAX marking -+ support otherwise they will not get any protection. -+ -+ If you enable both PT_PAX_FLAGS and XATTR_PAX_FLAGS support then you -+ must make sure that the marks are the same if a binary has both marks. -+ -+ Note that if you enable the legacy EI_PAX marking support as well, -+ the EI_PAX marks will be overridden by the PT_PAX_FLAGS marks. -+ -+config PAX_XATTR_PAX_FLAGS -+ bool 'Use filesystem extended attributes marking' -+ default y if GRKERNSEC_CONFIG_AUTO -+ select CIFS_XATTR if CIFS -+ select EXT2_FS_XATTR if EXT2_FS -+ select EXT3_FS_XATTR if EXT3_FS -+ select EXT4_FS_XATTR if EXT4_FS -+ select JFFS2_FS_XATTR if JFFS2_FS -+ select REISERFS_FS_XATTR if REISERFS_FS -+ select SQUASHFS_XATTR if SQUASHFS -+ select TMPFS_XATTR if TMPFS -+ select UBIFS_FS_XATTR if UBIFS_FS -+ help -+ Enabling this option will allow you to control PaX features on -+ a per executable basis via the 'setfattr' utility. The control -+ flags will be read from the user.pax.flags extended attribute of -+ the file. This marking has the benefit of supporting binary-only -+ applications that self-check themselves (e.g., skype) and would -+ not tolerate chpax/paxctl changes. The main drawback is that -+ extended attributes are not supported by some filesystems (e.g., -+ isofs, udf, vfat) so copying files through such filesystems will -+ lose the extended attributes and these PaX markings. -+ -+ If you have applications not marked by the PT_PAX_FLAGS ELF program -+ header then you MUST enable either XATTR_PAX_FLAGS or EI_PAX marking -+ support otherwise they will not get any protection. -+ -+ If you enable both PT_PAX_FLAGS and XATTR_PAX_FLAGS support then you -+ must make sure that the marks are the same if a binary has both marks. -+ -+ Note that if you enable the legacy EI_PAX marking support as well, -+ the EI_PAX marks will be overridden by the XATTR_PAX_FLAGS marks. -+ -+choice -+ prompt 'MAC system integration' -+ default PAX_HAVE_ACL_FLAGS -+ help -+ Mandatory Access Control systems have the option of controlling -+ PaX flags on a per executable basis, choose the method supported -+ by your particular system. -+ -+ - "none": if your MAC system does not interact with PaX, -+ - "direct": if your MAC system defines pax_set_initial_flags() itself, -+ - "hook": if your MAC system uses the pax_set_initial_flags_func callback. -+ -+ NOTE: this option is for developers/integrators only. -+ -+ config PAX_NO_ACL_FLAGS -+ bool 'none' -+ -+ config PAX_HAVE_ACL_FLAGS -+ bool 'direct' -+ -+ config PAX_HOOK_ACL_FLAGS -+ bool 'hook' -+endchoice -+ -+endmenu -+ -+menu "Non-executable pages" -+ depends on PAX -+ -+config PAX_NOEXEC -+ bool "Enforce non-executable pages" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on ALPHA || (ARM && (CPU_V6 || CPU_V7)) || IA64 || MIPS || PARISC || PPC || S390 || SPARC || X86 -+ help -+ By design some architectures do not allow for protecting memory -+ pages against execution or even if they do, Linux does not make -+ use of this feature. In practice this means that if a page is -+ readable (such as the stack or heap) it is also executable. -+ -+ There is a well known exploit technique that makes use of this -+ fact and a common programming mistake where an attacker can -+ introduce code of his choice somewhere in the attacked program's -+ memory (typically the stack or the heap) and then execute it. -+ -+ If the attacked program was running with different (typically -+ higher) privileges than that of the attacker, then he can elevate -+ his own privilege level (e.g. get a root shell, write to files for -+ which he does not have write access to, etc). -+ -+ Enabling this option will let you choose from various features -+ that prevent the injection and execution of 'foreign' code in -+ a program. -+ -+ This will also break programs that rely on the old behaviour and -+ expect that dynamically allocated memory via the malloc() family -+ of functions is executable (which it is not). Notable examples -+ are the XFree86 4.x server, the java runtime and wine. -+ -+config PAX_PAGEEXEC -+ bool "Paging based non-executable pages" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on PAX_NOEXEC && (!X86_32 || M586 || M586TSC || M586MMX || M686 || MPENTIUMII || MPENTIUMIII || MPENTIUMM || MCORE2 || MATOM || MPENTIUM4 || MPSC || MK7 || MK8 || MWINCHIPC6 || MWINCHIP2 || MWINCHIP3D || MVIAC3_2 || MVIAC7) -+ select S390_SWITCH_AMODE if S390 -+ select S390_EXEC_PROTECT if S390 -+ select ARCH_TRACK_EXEC_LIMIT if X86_32 -+ help -+ This implementation is based on the paging feature of the CPU. -+ On i386 without hardware non-executable bit support there is a -+ variable but usually low performance impact, however on Intel's -+ P4 core based CPUs it is very high so you should not enable this -+ for kernels meant to be used on such CPUs. -+ -+ On alpha, avr32, ia64, parisc, sparc, sparc64, x86_64 and i386 -+ with hardware non-executable bit support there is no performance -+ impact, on ppc the impact is negligible. -+ -+ Note that several architectures require various emulations due to -+ badly designed userland ABIs, this will cause a performance impact -+ but will disappear as soon as userland is fixed. For example, ppc -+ userland MUST have been built with secure-plt by a recent toolchain. -+ -+config PAX_SEGMEXEC -+ bool "Segmentation based non-executable pages" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on PAX_NOEXEC && X86_32 -+ help -+ This implementation is based on the segmentation feature of the -+ CPU and has a very small performance impact, however applications -+ will be limited to a 1.5 GB address space instead of the normal -+ 3 GB. -+ -+config PAX_EMUTRAMP -+ bool "Emulate trampolines" if (PAX_PAGEEXEC || PAX_SEGMEXEC) && (PARISC || X86) -+ default y if PARISC -+ help -+ There are some programs and libraries that for one reason or -+ another attempt to execute special small code snippets from -+ non-executable memory pages. Most notable examples are the -+ signal handler return code generated by the kernel itself and -+ the GCC trampolines. -+ -+ If you enabled CONFIG_PAX_PAGEEXEC or CONFIG_PAX_SEGMEXEC then -+ such programs will no longer work under your kernel. -+ -+ As a remedy you can say Y here and use the 'chpax' or 'paxctl' -+ utilities to enable trampoline emulation for the affected programs -+ yet still have the protection provided by the non-executable pages. -+ -+ On parisc you MUST enable this option and EMUSIGRT as well, otherwise -+ your system will not even boot. -+ -+ Alternatively you can say N here and use the 'chpax' or 'paxctl' -+ utilities to disable CONFIG_PAX_PAGEEXEC and CONFIG_PAX_SEGMEXEC -+ for the affected files. -+ -+ NOTE: enabling this feature *may* open up a loophole in the -+ protection provided by non-executable pages that an attacker -+ could abuse. Therefore the best solution is to not have any -+ files on your system that would require this option. This can -+ be achieved by not using libc5 (which relies on the kernel -+ signal handler return code) and not using or rewriting programs -+ that make use of the nested function implementation of GCC. -+ Skilled users can just fix GCC itself so that it implements -+ nested function calls in a way that does not interfere with PaX. -+ -+config PAX_EMUSIGRT -+ bool "Automatically emulate sigreturn trampolines" -+ depends on PAX_EMUTRAMP && PARISC -+ default y -+ help -+ Enabling this option will have the kernel automatically detect -+ and emulate signal return trampolines executing on the stack -+ that would otherwise lead to task termination. -+ -+ This solution is intended as a temporary one for users with -+ legacy versions of libc (libc5, glibc 2.0, uClibc before 0.9.17, -+ Modula-3 runtime, etc) or executables linked to such, basically -+ everything that does not specify its own SA_RESTORER function in -+ normal executable memory like glibc 2.1+ does. -+ -+ On parisc you MUST enable this option, otherwise your system will -+ not even boot. -+ -+ NOTE: this feature cannot be disabled on a per executable basis -+ and since it *does* open up a loophole in the protection provided -+ by non-executable pages, the best solution is to not have any -+ files on your system that would require this option. -+ -+config PAX_MPROTECT -+ bool "Restrict mprotect()" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on (PAX_PAGEEXEC || PAX_SEGMEXEC) -+ help -+ Enabling this option will prevent programs from -+ - changing the executable status of memory pages that were -+ not originally created as executable, -+ - making read-only executable pages writable again, -+ - creating executable pages from anonymous memory, -+ - making read-only-after-relocations (RELRO) data pages writable again. -+ -+ You should say Y here to complete the protection provided by -+ the enforcement of non-executable pages. -+ -+ NOTE: you can use the 'chpax' or 'paxctl' utilities to control -+ this feature on a per file basis. -+ -+config PAX_MPROTECT_COMPAT -+ bool "Use legacy/compat protection demoting (read help)" -+ default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_DESKTOP) -+ depends on PAX_MPROTECT -+ help -+ The current implementation of PAX_MPROTECT denies RWX allocations/mprotects -+ by sending the proper error code to the application. For some broken -+ userland, this can cause problems with Python or other applications. The -+ current implementation however allows for applications like clamav to -+ detect if JIT compilation/execution is allowed and to fall back gracefully -+ to an interpreter-based mode if it does not. While we encourage everyone -+ to use the current implementation as-is and push upstream to fix broken -+ userland (note that the RWX logging option can assist with this), in some -+ environments this may not be possible. Having to disable MPROTECT -+ completely on certain binaries reduces the security benefit of PaX, -+ so this option is provided for those environments to revert to the old -+ behavior. -+ -+config PAX_ELFRELOCS -+ bool "Allow ELF text relocations (read help)" -+ depends on PAX_MPROTECT -+ default n -+ help -+ Non-executable pages and mprotect() restrictions are effective -+ in preventing the introduction of new executable code into an -+ attacked task's address space. There remain only two venues -+ for this kind of attack: if the attacker can execute already -+ existing code in the attacked task then he can either have it -+ create and mmap() a file containing his code or have it mmap() -+ an already existing ELF library that does not have position -+ independent code in it and use mprotect() on it to make it -+ writable and copy his code there. While protecting against -+ the former approach is beyond PaX, the latter can be prevented -+ by having only PIC ELF libraries on one's system (which do not -+ need to relocate their code). If you are sure this is your case, -+ as is the case with all modern Linux distributions, then leave -+ this option disabled. You should say 'n' here. -+ -+config PAX_ETEXECRELOCS -+ bool "Allow ELF ET_EXEC text relocations" -+ depends on PAX_MPROTECT && (ALPHA || IA64 || PARISC) -+ select PAX_ELFRELOCS -+ default y -+ help -+ On some architectures there are incorrectly created applications -+ that require text relocations and would not work without enabling -+ this option. If you are an alpha, ia64 or parisc user, you should -+ enable this option and disable it once you have made sure that -+ none of your applications need it. -+ -+config PAX_EMUPLT -+ bool "Automatically emulate ELF PLT" -+ depends on PAX_MPROTECT && (ALPHA || PARISC || SPARC) -+ default y -+ help -+ Enabling this option will have the kernel automatically detect -+ and emulate the Procedure Linkage Table entries in ELF files. -+ On some architectures such entries are in writable memory, and -+ become non-executable leading to task termination. Therefore -+ it is mandatory that you enable this option on alpha, parisc, -+ sparc and sparc64, otherwise your system would not even boot. -+ -+ NOTE: this feature *does* open up a loophole in the protection -+ provided by the non-executable pages, therefore the proper -+ solution is to modify the toolchain to produce a PLT that does -+ not need to be writable. -+ -+config PAX_DLRESOLVE -+ bool 'Emulate old glibc resolver stub' -+ depends on PAX_EMUPLT && SPARC -+ default n -+ help -+ This option is needed if userland has an old glibc (before 2.4) -+ that puts a 'save' instruction into the runtime generated resolver -+ stub that needs special emulation. -+ -+config PAX_KERNEXEC -+ bool "Enforce non-executable kernel pages" -+ default y if GRKERNSEC_CONFIG_AUTO && (GRKERNSEC_CONFIG_VIRT_NONE || (GRKERNSEC_CONFIG_VIRT_EPT && GRKERNSEC_CONFIG_VIRT_GUEST) || (GRKERNSEC_CONFIG_VIRT_EPT && GRKERNSEC_CONFIG_VIRT_KVM)) -+ depends on (PPC || X86) && (!X86_32 || X86_WP_WORKS_OK) && !XEN -+ select PAX_PER_CPU_PGD if X86_64 || (X86_32 && X86_PAE) -+ select PAX_KERNEXEC_PLUGIN if X86_64 -+ help -+ This is the kernel land equivalent of PAGEEXEC and MPROTECT, -+ that is, enabling this option will make it harder to inject -+ and execute 'foreign' code in kernel memory itself. -+ -+ Note that on x86_64 kernels there is a known regression when -+ this feature and KVM/VMX are both enabled in the host kernel. -+ -+choice -+ prompt "Return Address Instrumentation Method" -+ default PAX_KERNEXEC_PLUGIN_METHOD_BTS -+ depends on PAX_KERNEXEC_PLUGIN -+ help -+ Select the method used to instrument function pointer dereferences. -+ Note that binary modules cannot be instrumented by this approach. -+ -+ config PAX_KERNEXEC_PLUGIN_METHOD_BTS -+ bool "bts" -+ help -+ This method is compatible with binary only modules but has -+ a higher runtime overhead. -+ -+ config PAX_KERNEXEC_PLUGIN_METHOD_OR -+ bool "or" -+ depends on !PARAVIRT -+ help -+ This method is incompatible with binary only modules but has -+ a lower runtime overhead. -+endchoice -+ -+config PAX_KERNEXEC_PLUGIN_METHOD -+ string -+ default "bts" if PAX_KERNEXEC_PLUGIN_METHOD_BTS -+ default "or" if PAX_KERNEXEC_PLUGIN_METHOD_OR -+ default "" -+ -+config PAX_KERNEXEC_MODULE_TEXT -+ int "Minimum amount of memory reserved for module code" -+ default "4" if (!GRKERNSEC_CONFIG_AUTO || GRKERNSEC_CONFIG_SERVER) -+ default "12" if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_DESKTOP) -+ depends on PAX_KERNEXEC && X86_32 && MODULES -+ help -+ Due to implementation details the kernel must reserve a fixed -+ amount of memory for module code at compile time that cannot be -+ changed at runtime. Here you can specify the minimum amount -+ in MB that will be reserved. Due to the same implementation -+ details this size will always be rounded up to the next 2/4 MB -+ boundary (depends on PAE) so the actually available memory for -+ module code will usually be more than this minimum. -+ -+ The default 4 MB should be enough for most users but if you have -+ an excessive number of modules (e.g., most distribution configs -+ compile many drivers as modules) or use huge modules such as -+ nvidia's kernel driver, you will need to adjust this amount. -+ A good rule of thumb is to look at your currently loaded kernel -+ modules and add up their sizes. -+ -+endmenu -+ -+menu "Address Space Layout Randomization" -+ depends on PAX -+ -+config PAX_ASLR -+ bool "Address Space Layout Randomization" -+ default y if GRKERNSEC_CONFIG_AUTO -+ help -+ Many if not most exploit techniques rely on the knowledge of -+ certain addresses in the attacked program. The following options -+ will allow the kernel to apply a certain amount of randomization -+ to specific parts of the program thereby forcing an attacker to -+ guess them in most cases. Any failed guess will most likely crash -+ the attacked program which allows the kernel to detect such attempts -+ and react on them. PaX itself provides no reaction mechanisms, -+ instead it is strongly encouraged that you make use of Nergal's -+ segvguard (ftp://ftp.pl.openwall.com/misc/segvguard/) or grsecurity's -+ (http://www.grsecurity.net/) built-in crash detection features or -+ develop one yourself. -+ -+ By saying Y here you can choose to randomize the following areas: -+ - top of the task's kernel stack -+ - top of the task's userland stack -+ - base address for mmap() requests that do not specify one -+ (this includes all libraries) -+ - base address of the main executable -+ -+ It is strongly recommended to say Y here as address space layout -+ randomization has negligible impact on performance yet it provides -+ a very effective protection. -+ -+ NOTE: you can use the 'chpax' or 'paxctl' utilities to control -+ this feature on a per file basis. -+ -+config PAX_RANDKSTACK -+ bool "Randomize kernel stack base" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on X86_TSC && X86 -+ help -+ By saying Y here the kernel will randomize every task's kernel -+ stack on every system call. This will not only force an attacker -+ to guess it but also prevent him from making use of possible -+ leaked information about it. -+ -+ Since the kernel stack is a rather scarce resource, randomization -+ may cause unexpected stack overflows, therefore you should very -+ carefully test your system. Note that once enabled in the kernel -+ configuration, this feature cannot be disabled on a per file basis. -+ -+config PAX_RANDUSTACK -+ bool "Randomize user stack base" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on PAX_ASLR -+ help -+ By saying Y here the kernel will randomize every task's userland -+ stack. The randomization is done in two steps where the second -+ one may apply a big amount of shift to the top of the stack and -+ cause problems for programs that want to use lots of memory (more -+ than 2.5 GB if SEGMEXEC is not active, or 1.25 GB when it is). -+ For this reason the second step can be controlled by 'chpax' or -+ 'paxctl' on a per file basis. -+ -+config PAX_RANDMMAP -+ bool "Randomize mmap() base" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on PAX_ASLR -+ help -+ By saying Y here the kernel will use a randomized base address for -+ mmap() requests that do not specify one themselves. As a result -+ all dynamically loaded libraries will appear at random addresses -+ and therefore be harder to exploit by a technique where an attacker -+ attempts to execute library code for his purposes (e.g. spawn a -+ shell from an exploited program that is running at an elevated -+ privilege level). -+ -+ Furthermore, if a program is relinked as a dynamic ELF file, its -+ base address will be randomized as well, completing the full -+ randomization of the address space layout. Attacking such programs -+ becomes a guess game. You can find an example of doing this at -+ http://pax.grsecurity.net/et_dyn.tar.gz and practical samples at -+ http://www.grsecurity.net/grsec-gcc-specs.tar.gz . -+ -+ NOTE: you can use the 'chpax' or 'paxctl' utilities to control this -+ feature on a per file basis. -+ -+endmenu -+ -+menu "Miscellaneous hardening features" -+ -+config PAX_MEMORY_SANITIZE -+ bool "Sanitize all freed memory" -+ default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_PRIORITY_SECURITY) -+ depends on !HIBERNATION -+ help -+ By saying Y here the kernel will erase memory pages as soon as they -+ are freed. This in turn reduces the lifetime of data stored in the -+ pages, making it less likely that sensitive information such as -+ passwords, cryptographic secrets, etc stay in memory for too long. -+ -+ This is especially useful for programs whose runtime is short, long -+ lived processes and the kernel itself benefit from this as long as -+ they operate on whole memory pages and ensure timely freeing of pages -+ that may hold sensitive information. -+ -+ The tradeoff is performance impact, on a single CPU system kernel -+ compilation sees a 3% slowdown, other systems and workloads may vary -+ and you are advised to test this feature on your expected workload -+ before deploying it. -+ -+ Note that this feature does not protect data stored in live pages, -+ e.g., process memory swapped to disk may stay there for a long time. -+ -+config PAX_MEMORY_STACKLEAK -+ bool "Sanitize kernel stack" -+ default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_PRIORITY_SECURITY) -+ depends on X86 -+ help -+ By saying Y here the kernel will erase the kernel stack before it -+ returns from a system call. This in turn reduces the information -+ that a kernel stack leak bug can reveal. -+ -+ Note that such a bug can still leak information that was put on -+ the stack by the current system call (the one eventually triggering -+ the bug) but traces of earlier system calls on the kernel stack -+ cannot leak anymore. -+ -+ The tradeoff is performance impact: on a single CPU system kernel -+ compilation sees a 1% slowdown, other systems and workloads may vary -+ and you are advised to test this feature on your expected workload -+ before deploying it. -+ -+ Note: full support for this feature requires gcc with plugin support -+ so make sure your compiler is at least gcc 4.5.0. Using older gcc -+ versions means that functions with large enough stack frames may -+ leave uninitialized memory behind that may be exposed to a later -+ syscall leaking the stack. -+ -+config PAX_MEMORY_UDEREF -+ bool "Prevent invalid userland pointer dereference" -+ default y if GRKERNSEC_CONFIG_AUTO && (X86_32 || (X86_64 && GRKERNSEC_CONFIG_PRIORITY_SECURITY)) && (GRKERNSEC_CONFIG_VIRT_NONE || GRKERNSEC_CONFIG_VIRT_EPT) -+ depends on X86 && !UML_X86 && !XEN -+ select PAX_PER_CPU_PGD if X86_64 -+ help -+ By saying Y here the kernel will be prevented from dereferencing -+ userland pointers in contexts where the kernel expects only kernel -+ pointers. This is both a useful runtime debugging feature and a -+ security measure that prevents exploiting a class of kernel bugs. -+ -+ The tradeoff is that some virtualization solutions may experience -+ a huge slowdown and therefore you should not enable this feature -+ for kernels meant to run in such environments. Whether a given VM -+ solution is affected or not is best determined by simply trying it -+ out, the performance impact will be obvious right on boot as this -+ mechanism engages from very early on. A good rule of thumb is that -+ VMs running on CPUs without hardware virtualization support (i.e., -+ the majority of IA-32 CPUs) will likely experience the slowdown. -+ -+config PAX_REFCOUNT -+ bool "Prevent various kernel object reference counter overflows" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on GRKERNSEC && ((ARM && (CPU_32v6 || CPU_32v6K || CPU_32v7)) || SPARC64 || X86) -+ help -+ By saying Y here the kernel will detect and prevent overflowing -+ various (but not all) kinds of object reference counters. Such -+ overflows can normally occur due to bugs only and are often, if -+ not always, exploitable. -+ -+ The tradeoff is that data structures protected by an overflowed -+ refcount will never be freed and therefore will leak memory. Note -+ that this leak also happens even without this protection but in -+ that case the overflow can eventually trigger the freeing of the -+ data structure while it is still being used elsewhere, resulting -+ in the exploitable situation that this feature prevents. -+ -+ Since this has a negligible performance impact, you should enable -+ this feature. -+ -+config PAX_USERCOPY -+ bool "Harden heap object copies between kernel and userland" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on X86 || PPC || SPARC || ARM -+ depends on GRKERNSEC && (SLAB || SLUB || SLOB) -+ help -+ By saying Y here the kernel will enforce the size of heap objects -+ when they are copied in either direction between the kernel and -+ userland, even if only a part of the heap object is copied. -+ -+ Specifically, this checking prevents information leaking from the -+ kernel heap during kernel to userland copies (if the kernel heap -+ object is otherwise fully initialized) and prevents kernel heap -+ overflows during userland to kernel copies. -+ -+ Note that the current implementation provides the strictest bounds -+ checks for the SLUB allocator. -+ -+ Enabling this option also enables per-slab cache protection against -+ data in a given cache being copied into/out of via userland -+ accessors. Though the whitelist of regions will be reduced over -+ time, it notably protects important data structures like task structs. -+ -+ If frame pointers are enabled on x86, this option will also restrict -+ copies into and out of the kernel stack to local variables within a -+ single frame. -+ -+ Since this has a negligible performance impact, you should enable -+ this feature. -+ -+config PAX_SIZE_OVERFLOW -+ bool "Prevent various integer overflows in function size parameters" -+ default y if GRKERNSEC_CONFIG_AUTO -+ depends on X86 -+ help -+ By saying Y here the kernel recomputes expressions of function -+ arguments marked by a size_overflow attribute with double integer -+ precision (DImode/TImode for 32/64 bit integer types). -+ -+ The recomputed argument is checked against INT_MAX and an event -+ is logged on overflow and the triggering process is killed. -+ -+ Homepage: -+ http://www.grsecurity.net/~ephox/overflow_plugin/ -+ -+endmenu -+ -+endmenu -+ -+source grsecurity/Kconfig -+ -+endmenu -+ -+endmenu -+ - config KEYS - bool "Enable access key retention support" - help -@@ -169,7 +1012,7 @@ config INTEL_TXT - config LSM_MMAP_MIN_ADDR - int "Low address space for LSM to protect from user allocation" - depends on SECURITY && SECURITY_SELINUX -- default 32768 if ARM -+ default 32768 if ALPHA || ARM || PARISC || SPARC32 - default 65536 - help - This is the portion of low virtual memory which should be protected -diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c -index ad05d39..afffccb 100644 ---- a/security/apparmor/lsm.c -+++ b/security/apparmor/lsm.c -@@ -622,7 +622,7 @@ static int apparmor_task_setrlimit(struct task_struct *task, - return error; - } - --static struct security_operations apparmor_ops = { -+static struct security_operations apparmor_ops __read_only = { - .name = "apparmor", - - .ptrace_access_check = apparmor_ptrace_access_check, -diff --git a/security/commoncap.c b/security/commoncap.c -index 71a166a..851bb3e 100644 ---- a/security/commoncap.c -+++ b/security/commoncap.c -@@ -576,6 +576,9 @@ int cap_bprm_secureexec(struct linux_binprm *bprm) - { - const struct cred *cred = current_cred(); - -+ if (gr_acl_enable_at_secure()) -+ return 1; -+ - if (cred->uid != 0) { - if (bprm->cap_effective) - return 1; -diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h -index 3ccf7ac..d73ad64 100644 ---- a/security/integrity/ima/ima.h -+++ b/security/integrity/ima/ima.h -@@ -86,8 +86,8 @@ void ima_add_violation(struct inode *inode, const unsigned char *filename, - extern spinlock_t ima_queue_lock; - - struct ima_h_table { -- atomic_long_t len; /* number of stored measurements in the list */ -- atomic_long_t violations; -+ atomic_long_unchecked_t len; /* number of stored measurements in the list */ -+ atomic_long_unchecked_t violations; - struct hlist_head queue[IMA_MEASURE_HTABLE_SIZE]; - }; - extern struct ima_h_table ima_htable; -diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c -index 88a2788..581ab92 100644 ---- a/security/integrity/ima/ima_api.c -+++ b/security/integrity/ima/ima_api.c -@@ -75,7 +75,7 @@ void ima_add_violation(struct inode *inode, const unsigned char *filename, - int result; - - /* can overflow, only indicator */ -- atomic_long_inc(&ima_htable.violations); -+ atomic_long_inc_unchecked(&ima_htable.violations); - - entry = kmalloc(sizeof(*entry), GFP_KERNEL); - if (!entry) { -diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c -index e1aa2b4..52027bf 100644 ---- a/security/integrity/ima/ima_fs.c -+++ b/security/integrity/ima/ima_fs.c -@@ -28,12 +28,12 @@ - static int valid_policy = 1; - #define TMPBUFLEN 12 - static ssize_t ima_show_htable_value(char __user *buf, size_t count, -- loff_t *ppos, atomic_long_t *val) -+ loff_t *ppos, atomic_long_unchecked_t *val) - { - char tmpbuf[TMPBUFLEN]; - ssize_t len; - -- len = scnprintf(tmpbuf, TMPBUFLEN, "%li\n", atomic_long_read(val)); -+ len = scnprintf(tmpbuf, TMPBUFLEN, "%li\n", atomic_long_read_unchecked(val)); - return simple_read_from_buffer(buf, count, ppos, tmpbuf, len); - } - -diff --git a/security/integrity/ima/ima_queue.c b/security/integrity/ima/ima_queue.c -index 55a6271..ad829c3 100644 ---- a/security/integrity/ima/ima_queue.c -+++ b/security/integrity/ima/ima_queue.c -@@ -81,7 +81,7 @@ static int ima_add_digest_entry(struct ima_template_entry *entry) - INIT_LIST_HEAD(&qe->later); - list_add_tail_rcu(&qe->later, &ima_measurements); - -- atomic_long_inc(&ima_htable.len); -+ atomic_long_inc_unchecked(&ima_htable.len); - key = ima_hash_key(entry->digest); - hlist_add_head_rcu(&qe->hnext, &ima_htable.queue[key]); - return 0; -diff --git a/security/keys/compat.c b/security/keys/compat.c -index 4c48e13..7abdac9 100644 ---- a/security/keys/compat.c -+++ b/security/keys/compat.c -@@ -44,7 +44,7 @@ long compat_keyctl_instantiate_key_iov( - if (ret == 0) - goto no_payload_free; - -- ret = keyctl_instantiate_key_common(id, iov, ioc, ret, ringid); -+ ret = keyctl_instantiate_key_common(id, (const struct iovec __force_user *)iov, ioc, ret, ringid); - - if (iov != iovstack) - kfree(iov); -diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c -index fb767c6..b9c49c0 100644 ---- a/security/keys/keyctl.c -+++ b/security/keys/keyctl.c -@@ -935,7 +935,7 @@ static int keyctl_change_reqkey_auth(struct key *key) - /* - * Copy the iovec data from userspace - */ --static long copy_from_user_iovec(void *buffer, const struct iovec *iov, -+static long copy_from_user_iovec(void *buffer, const struct iovec __user *iov, - unsigned ioc) - { - for (; ioc > 0; ioc--) { -@@ -957,7 +957,7 @@ static long copy_from_user_iovec(void *buffer, const struct iovec *iov, - * If successful, 0 will be returned. - */ - long keyctl_instantiate_key_common(key_serial_t id, -- const struct iovec *payload_iov, -+ const struct iovec __user *payload_iov, - unsigned ioc, - size_t plen, - key_serial_t ringid) -@@ -1052,7 +1052,7 @@ long keyctl_instantiate_key(key_serial_t id, - [0].iov_len = plen - }; - -- return keyctl_instantiate_key_common(id, iov, 1, plen, ringid); -+ return keyctl_instantiate_key_common(id, (const struct iovec __force_user *)iov, 1, plen, ringid); - } - - return keyctl_instantiate_key_common(id, NULL, 0, 0, ringid); -@@ -1085,7 +1085,7 @@ long keyctl_instantiate_key_iov(key_serial_t id, - if (ret == 0) - goto no_payload_free; - -- ret = keyctl_instantiate_key_common(id, iov, ioc, ret, ringid); -+ ret = keyctl_instantiate_key_common(id, (const struct iovec __force_user *)iov, ioc, ret, ringid); - - if (iov != iovstack) - kfree(iov); -diff --git a/security/keys/keyring.c b/security/keys/keyring.c -index d605f75..2bc6be9 100644 ---- a/security/keys/keyring.c -+++ b/security/keys/keyring.c -@@ -214,15 +214,15 @@ static long keyring_read(const struct key *keyring, - ret = -EFAULT; - - for (loop = 0; loop < klist->nkeys; loop++) { -+ key_serial_t serial; - key = klist->keys[loop]; -+ serial = key->serial; - - tmp = sizeof(key_serial_t); - if (tmp > buflen) - tmp = buflen; - -- if (copy_to_user(buffer, -- &key->serial, -- tmp) != 0) -+ if (copy_to_user(buffer, &serial, tmp)) - goto error; - - buflen -= tmp; -diff --git a/security/min_addr.c b/security/min_addr.c -index f728728..6457a0c 100644 ---- a/security/min_addr.c -+++ b/security/min_addr.c -@@ -14,6 +14,7 @@ unsigned long dac_mmap_min_addr = CONFIG_DEFAULT_MMAP_MIN_ADDR; - */ - static void update_mmap_min_addr(void) - { -+#ifndef SPARC - #ifdef CONFIG_LSM_MMAP_MIN_ADDR - if (dac_mmap_min_addr > CONFIG_LSM_MMAP_MIN_ADDR) - mmap_min_addr = dac_mmap_min_addr; -@@ -22,6 +23,7 @@ static void update_mmap_min_addr(void) - #else - mmap_min_addr = dac_mmap_min_addr; - #endif -+#endif - } - - /* -diff --git a/security/security.c b/security/security.c -index bf619ff..8179030 100644 ---- a/security/security.c -+++ b/security/security.c -@@ -20,6 +20,7 @@ - #include <linux/ima.h> - #include <linux/evm.h> - #include <linux/fsnotify.h> -+#include <linux/mm.h> - #include <net/flow.h> - - #define MAX_LSM_EVM_XATTR 2 -@@ -28,8 +29,8 @@ - static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] = - CONFIG_DEFAULT_SECURITY; - --static struct security_operations *security_ops; --static struct security_operations default_security_ops = { -+static struct security_operations *security_ops __read_only; -+static struct security_operations default_security_ops __read_only = { - .name = "default", - }; - -@@ -70,7 +71,9 @@ int __init security_init(void) - - void reset_security_ops(void) - { -+ pax_open_kernel(); - security_ops = &default_security_ops; -+ pax_close_kernel(); - } - - /* Save user chosen LSM */ -diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c -index d85b793..a164832 100644 ---- a/security/selinux/hooks.c -+++ b/security/selinux/hooks.c -@@ -95,8 +95,6 @@ - - #define NUM_SEL_MNT_OPTS 5 - --extern struct security_operations *security_ops; -- - /* SECMARK reference count */ - static atomic_t selinux_secmark_refcount = ATOMIC_INIT(0); - -@@ -5520,7 +5518,7 @@ static int selinux_key_getsecurity(struct key *key, char **_buffer) - - #endif - --static struct security_operations selinux_ops = { -+static struct security_operations selinux_ops __read_only = { - .name = "selinux", - - .ptrace_access_check = selinux_ptrace_access_check, -diff --git a/security/selinux/include/xfrm.h b/security/selinux/include/xfrm.h -index c220f31..89fab3f 100644 ---- a/security/selinux/include/xfrm.h -+++ b/security/selinux/include/xfrm.h -@@ -50,7 +50,7 @@ int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall); - - static inline void selinux_xfrm_notify_policyload(void) - { -- atomic_inc(&flow_cache_genid); -+ atomic_inc_unchecked(&flow_cache_genid); - } - #else - static inline int selinux_xfrm_enabled(void) -diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c -index 45c32f0..0038be2 100644 ---- a/security/smack/smack_lsm.c -+++ b/security/smack/smack_lsm.c -@@ -3500,7 +3500,7 @@ static int smack_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) - return 0; - } - --struct security_operations smack_ops = { -+struct security_operations smack_ops __read_only = { - .name = "smack", - - .ptrace_access_check = smack_ptrace_access_check, -diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c -index 620d37c..e2ad89b 100644 ---- a/security/tomoyo/tomoyo.c -+++ b/security/tomoyo/tomoyo.c -@@ -501,7 +501,7 @@ static int tomoyo_socket_sendmsg(struct socket *sock, struct msghdr *msg, - * tomoyo_security_ops is a "struct security_operations" which is used for - * registering TOMOYO. - */ --static struct security_operations tomoyo_security_ops = { -+static struct security_operations tomoyo_security_ops __read_only = { - .name = "tomoyo", - .cred_alloc_blank = tomoyo_cred_alloc_blank, - .cred_prepare = tomoyo_cred_prepare, -diff --git a/security/yama/Kconfig b/security/yama/Kconfig -index 51d6709..1f3dbe2 100644 ---- a/security/yama/Kconfig -+++ b/security/yama/Kconfig -@@ -1,6 +1,6 @@ - config SECURITY_YAMA - bool "Yama support" -- depends on SECURITY -+ depends on SECURITY && !GRKERNSEC - select SECURITYFS - select SECURITY_PATH - default n -diff --git a/sound/aoa/codecs/onyx.c b/sound/aoa/codecs/onyx.c -index 270790d..c67dfcb 100644 ---- a/sound/aoa/codecs/onyx.c -+++ b/sound/aoa/codecs/onyx.c -@@ -54,7 +54,7 @@ struct onyx { - spdif_locked:1, - analog_locked:1, - original_mute:2; -- int open_count; -+ local_t open_count; - struct codec_info *codec_info; - - /* mutex serializes concurrent access to the device -@@ -753,7 +753,7 @@ static int onyx_open(struct codec_info_item *cii, - struct onyx *onyx = cii->codec_data; - - mutex_lock(&onyx->mutex); -- onyx->open_count++; -+ local_inc(&onyx->open_count); - mutex_unlock(&onyx->mutex); - - return 0; -@@ -765,8 +765,7 @@ static int onyx_close(struct codec_info_item *cii, - struct onyx *onyx = cii->codec_data; - - mutex_lock(&onyx->mutex); -- onyx->open_count--; -- if (!onyx->open_count) -+ if (local_dec_and_test(&onyx->open_count)) - onyx->spdif_locked = onyx->analog_locked = 0; - mutex_unlock(&onyx->mutex); - -diff --git a/sound/aoa/codecs/onyx.h b/sound/aoa/codecs/onyx.h -index ffd2025..df062c9 100644 ---- a/sound/aoa/codecs/onyx.h -+++ b/sound/aoa/codecs/onyx.h -@@ -11,6 +11,7 @@ - #include <linux/i2c.h> - #include <asm/pmac_low_i2c.h> - #include <asm/prom.h> -+#include <asm/local.h> - - /* PCM3052 register definitions */ - -diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c -index 08fde00..0bf641a 100644 ---- a/sound/core/oss/pcm_oss.c -+++ b/sound/core/oss/pcm_oss.c -@@ -1189,10 +1189,10 @@ snd_pcm_sframes_t snd_pcm_oss_write3(struct snd_pcm_substream *substream, const - if (in_kernel) { - mm_segment_t fs; - fs = snd_enter_user(); -- ret = snd_pcm_lib_write(substream, (void __force __user *)ptr, frames); -+ ret = snd_pcm_lib_write(substream, (void __force_user *)ptr, frames); - snd_leave_user(fs); - } else { -- ret = snd_pcm_lib_write(substream, (void __force __user *)ptr, frames); -+ ret = snd_pcm_lib_write(substream, (void __force_user *)ptr, frames); - } - if (ret != -EPIPE && ret != -ESTRPIPE) - break; -@@ -1234,10 +1234,10 @@ snd_pcm_sframes_t snd_pcm_oss_read3(struct snd_pcm_substream *substream, char *p - if (in_kernel) { - mm_segment_t fs; - fs = snd_enter_user(); -- ret = snd_pcm_lib_read(substream, (void __force __user *)ptr, frames); -+ ret = snd_pcm_lib_read(substream, (void __force_user *)ptr, frames); - snd_leave_user(fs); - } else { -- ret = snd_pcm_lib_read(substream, (void __force __user *)ptr, frames); -+ ret = snd_pcm_lib_read(substream, (void __force_user *)ptr, frames); - } - if (ret == -EPIPE) { - if (runtime->status->state == SNDRV_PCM_STATE_DRAINING) { -@@ -1337,7 +1337,7 @@ static ssize_t snd_pcm_oss_write2(struct snd_pcm_substream *substream, const cha - struct snd_pcm_plugin_channel *channels; - size_t oss_frame_bytes = (runtime->oss.plugin_first->src_width * runtime->oss.plugin_first->src_format.channels) / 8; - if (!in_kernel) { -- if (copy_from_user(runtime->oss.buffer, (const char __force __user *)buf, bytes)) -+ if (copy_from_user(runtime->oss.buffer, (const char __force_user *)buf, bytes)) - return -EFAULT; - buf = runtime->oss.buffer; - } -@@ -1407,7 +1407,7 @@ static ssize_t snd_pcm_oss_write1(struct snd_pcm_substream *substream, const cha - } - } else { - tmp = snd_pcm_oss_write2(substream, -- (const char __force *)buf, -+ (const char __force_kernel *)buf, - runtime->oss.period_bytes, 0); - if (tmp <= 0) - goto err; -@@ -1433,7 +1433,7 @@ static ssize_t snd_pcm_oss_read2(struct snd_pcm_substream *substream, char *buf, - struct snd_pcm_runtime *runtime = substream->runtime; - snd_pcm_sframes_t frames, frames1; - #ifdef CONFIG_SND_PCM_OSS_PLUGINS -- char __user *final_dst = (char __force __user *)buf; -+ char __user *final_dst = (char __force_user *)buf; - if (runtime->oss.plugin_first) { - struct snd_pcm_plugin_channel *channels; - size_t oss_frame_bytes = (runtime->oss.plugin_last->dst_width * runtime->oss.plugin_last->dst_format.channels) / 8; -@@ -1495,7 +1495,7 @@ static ssize_t snd_pcm_oss_read1(struct snd_pcm_substream *substream, char __use - xfer += tmp; - runtime->oss.buffer_used -= tmp; - } else { -- tmp = snd_pcm_oss_read2(substream, (char __force *)buf, -+ tmp = snd_pcm_oss_read2(substream, (char __force_kernel *)buf, - runtime->oss.period_bytes, 0); - if (tmp <= 0) - goto err; -@@ -1663,7 +1663,7 @@ static int snd_pcm_oss_sync(struct snd_pcm_oss_file *pcm_oss_file) - size1); - size1 /= runtime->channels; /* frames */ - fs = snd_enter_user(); -- snd_pcm_lib_write(substream, (void __force __user *)runtime->oss.buffer, size1); -+ snd_pcm_lib_write(substream, (void __force_user *)runtime->oss.buffer, size1); - snd_leave_user(fs); - } - } else if (runtime->access == SNDRV_PCM_ACCESS_RW_NONINTERLEAVED) { -diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c -index 91cdf94..4085161 100644 ---- a/sound/core/pcm_compat.c -+++ b/sound/core/pcm_compat.c -@@ -31,7 +31,7 @@ static int snd_pcm_ioctl_delay_compat(struct snd_pcm_substream *substream, - int err; - - fs = snd_enter_user(); -- err = snd_pcm_delay(substream, &delay); -+ err = snd_pcm_delay(substream, (snd_pcm_sframes_t __force_user *)&delay); - snd_leave_user(fs); - if (err < 0) - return err; -diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c -index 3fe99e6..26952e4 100644 ---- a/sound/core/pcm_native.c -+++ b/sound/core/pcm_native.c -@@ -2770,11 +2770,11 @@ int snd_pcm_kernel_ioctl(struct snd_pcm_substream *substream, - switch (substream->stream) { - case SNDRV_PCM_STREAM_PLAYBACK: - result = snd_pcm_playback_ioctl1(NULL, substream, cmd, -- (void __user *)arg); -+ (void __force_user *)arg); - break; - case SNDRV_PCM_STREAM_CAPTURE: - result = snd_pcm_capture_ioctl1(NULL, substream, cmd, -- (void __user *)arg); -+ (void __force_user *)arg); - break; - default: - result = -EINVAL; -diff --git a/sound/core/seq/seq_device.c b/sound/core/seq/seq_device.c -index 5cf8d65..912a79c 100644 ---- a/sound/core/seq/seq_device.c -+++ b/sound/core/seq/seq_device.c -@@ -64,7 +64,7 @@ struct ops_list { - int argsize; /* argument size */ - - /* operators */ -- struct snd_seq_dev_ops ops; -+ struct snd_seq_dev_ops *ops; - - /* registred devices */ - struct list_head dev_list; /* list of devices */ -@@ -333,7 +333,7 @@ int snd_seq_device_register_driver(char *id, struct snd_seq_dev_ops *entry, - - mutex_lock(&ops->reg_mutex); - /* copy driver operators */ -- ops->ops = *entry; -+ ops->ops = entry; - ops->driver |= DRIVER_LOADED; - ops->argsize = argsize; - -@@ -463,7 +463,7 @@ static int init_device(struct snd_seq_device *dev, struct ops_list *ops) - dev->name, ops->id, ops->argsize, dev->argsize); - return -EINVAL; - } -- if (ops->ops.init_device(dev) >= 0) { -+ if (ops->ops->init_device(dev) >= 0) { - dev->status = SNDRV_SEQ_DEVICE_REGISTERED; - ops->num_init_devices++; - } else { -@@ -490,7 +490,7 @@ static int free_device(struct snd_seq_device *dev, struct ops_list *ops) - dev->name, ops->id, ops->argsize, dev->argsize); - return -EINVAL; - } -- if ((result = ops->ops.free_device(dev)) >= 0 || result == -ENXIO) { -+ if ((result = ops->ops->free_device(dev)) >= 0 || result == -ENXIO) { - dev->status = SNDRV_SEQ_DEVICE_FREE; - dev->driver_data = NULL; - ops->num_init_devices--; -diff --git a/sound/drivers/mts64.c b/sound/drivers/mts64.c -index 621e60e..f4543f5 100644 ---- a/sound/drivers/mts64.c -+++ b/sound/drivers/mts64.c -@@ -29,6 +29,7 @@ - #include <sound/initval.h> - #include <sound/rawmidi.h> - #include <sound/control.h> -+#include <asm/local.h> - - #define CARD_NAME "Miditerminal 4140" - #define DRIVER_NAME "MTS64" -@@ -67,7 +68,7 @@ struct mts64 { - struct pardevice *pardev; - int pardev_claimed; - -- int open_count; -+ local_t open_count; - int current_midi_output_port; - int current_midi_input_port; - u8 mode[MTS64_NUM_INPUT_PORTS]; -@@ -697,7 +698,7 @@ static int snd_mts64_rawmidi_open(struct snd_rawmidi_substream *substream) - { - struct mts64 *mts = substream->rmidi->private_data; - -- if (mts->open_count == 0) { -+ if (local_read(&mts->open_count) == 0) { - /* We don't need a spinlock here, because this is just called - if the device has not been opened before. - So there aren't any IRQs from the device */ -@@ -705,7 +706,7 @@ static int snd_mts64_rawmidi_open(struct snd_rawmidi_substream *substream) - - msleep(50); - } -- ++(mts->open_count); -+ local_inc(&mts->open_count); - - return 0; - } -@@ -715,8 +716,7 @@ static int snd_mts64_rawmidi_close(struct snd_rawmidi_substream *substream) - struct mts64 *mts = substream->rmidi->private_data; - unsigned long flags; - -- --(mts->open_count); -- if (mts->open_count == 0) { -+ if (local_dec_return(&mts->open_count) == 0) { - /* We need the spinlock_irqsave here because we can still - have IRQs at this point */ - spin_lock_irqsave(&mts->lock, flags); -@@ -725,8 +725,8 @@ static int snd_mts64_rawmidi_close(struct snd_rawmidi_substream *substream) - - msleep(500); - -- } else if (mts->open_count < 0) -- mts->open_count = 0; -+ } else if (local_read(&mts->open_count) < 0) -+ local_set(&mts->open_count, 0); - - return 0; - } -diff --git a/sound/drivers/opl4/opl4_lib.c b/sound/drivers/opl4/opl4_lib.c -index b953fb4..1999c01 100644 ---- a/sound/drivers/opl4/opl4_lib.c -+++ b/sound/drivers/opl4/opl4_lib.c -@@ -29,7 +29,7 @@ MODULE_AUTHOR("Clemens Ladisch <clemens(a)ladisch.de>"); - MODULE_DESCRIPTION("OPL4 driver"); - MODULE_LICENSE("GPL"); - --static void inline snd_opl4_wait(struct snd_opl4 *opl4) -+static inline void snd_opl4_wait(struct snd_opl4 *opl4) - { - int timeout = 10; - while ((inb(opl4->fm_port) & OPL4_STATUS_BUSY) && --timeout > 0) -diff --git a/sound/drivers/portman2x4.c b/sound/drivers/portman2x4.c -index 3e32bd3..46fc152 100644 ---- a/sound/drivers/portman2x4.c -+++ b/sound/drivers/portman2x4.c -@@ -48,6 +48,7 @@ - #include <sound/initval.h> - #include <sound/rawmidi.h> - #include <sound/control.h> -+#include <asm/local.h> - - #define CARD_NAME "Portman 2x4" - #define DRIVER_NAME "portman" -@@ -85,7 +86,7 @@ struct portman { - struct pardevice *pardev; - int pardev_claimed; - -- int open_count; -+ local_t open_count; - int mode[PORTMAN_NUM_INPUT_PORTS]; - struct snd_rawmidi_substream *midi_input[PORTMAN_NUM_INPUT_PORTS]; - }; -diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c -index 87657dd..a8268d4 100644 ---- a/sound/firewire/amdtp.c -+++ b/sound/firewire/amdtp.c -@@ -371,7 +371,7 @@ static void queue_out_packet(struct amdtp_out_stream *s, unsigned int cycle) - ptr = s->pcm_buffer_pointer + data_blocks; - if (ptr >= pcm->runtime->buffer_size) - ptr -= pcm->runtime->buffer_size; -- ACCESS_ONCE(s->pcm_buffer_pointer) = ptr; -+ ACCESS_ONCE_RW(s->pcm_buffer_pointer) = ptr; - - s->pcm_period_pointer += data_blocks; - if (s->pcm_period_pointer >= pcm->runtime->period_size) { -@@ -511,7 +511,7 @@ EXPORT_SYMBOL(amdtp_out_stream_start); - */ - void amdtp_out_stream_update(struct amdtp_out_stream *s) - { -- ACCESS_ONCE(s->source_node_id_field) = -+ ACCESS_ONCE_RW(s->source_node_id_field) = - (fw_parent_device(s->unit)->card->node_id & 0x3f) << 24; - } - EXPORT_SYMBOL(amdtp_out_stream_update); -diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h -index 537a9cb..8e8c8e9 100644 ---- a/sound/firewire/amdtp.h -+++ b/sound/firewire/amdtp.h -@@ -146,7 +146,7 @@ static inline void amdtp_out_stream_pcm_prepare(struct amdtp_out_stream *s) - static inline void amdtp_out_stream_pcm_trigger(struct amdtp_out_stream *s, - struct snd_pcm_substream *pcm) - { -- ACCESS_ONCE(s->pcm) = pcm; -+ ACCESS_ONCE_RW(s->pcm) = pcm; - } - - /** -diff --git a/sound/firewire/isight.c b/sound/firewire/isight.c -index d428ffe..751ef78 100644 ---- a/sound/firewire/isight.c -+++ b/sound/firewire/isight.c -@@ -96,7 +96,7 @@ static void isight_update_pointers(struct isight *isight, unsigned int count) - ptr += count; - if (ptr >= runtime->buffer_size) - ptr -= runtime->buffer_size; -- ACCESS_ONCE(isight->buffer_pointer) = ptr; -+ ACCESS_ONCE_RW(isight->buffer_pointer) = ptr; - - isight->period_counter += count; - if (isight->period_counter >= runtime->period_size) { -@@ -307,7 +307,7 @@ static int isight_hw_params(struct snd_pcm_substream *substream, - if (err < 0) - return err; - -- ACCESS_ONCE(isight->pcm_active) = true; -+ ACCESS_ONCE_RW(isight->pcm_active) = true; - - return 0; - } -@@ -340,7 +340,7 @@ static int isight_hw_free(struct snd_pcm_substream *substream) - { - struct isight *isight = substream->private_data; - -- ACCESS_ONCE(isight->pcm_active) = false; -+ ACCESS_ONCE_RW(isight->pcm_active) = false; - - mutex_lock(&isight->mutex); - isight_stop_streaming(isight); -@@ -433,10 +433,10 @@ static int isight_trigger(struct snd_pcm_substream *substream, int cmd) - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: -- ACCESS_ONCE(isight->pcm_running) = true; -+ ACCESS_ONCE_RW(isight->pcm_running) = true; - break; - case SNDRV_PCM_TRIGGER_STOP: -- ACCESS_ONCE(isight->pcm_running) = false; -+ ACCESS_ONCE_RW(isight->pcm_running) = false; - break; - default: - return -EINVAL; -diff --git a/sound/isa/cmi8330.c b/sound/isa/cmi8330.c -index 7bd5e33..1fcab12 100644 ---- a/sound/isa/cmi8330.c -+++ b/sound/isa/cmi8330.c -@@ -172,7 +172,7 @@ struct snd_cmi8330 { - - struct snd_pcm *pcm; - struct snd_cmi8330_stream { -- struct snd_pcm_ops ops; -+ snd_pcm_ops_no_const ops; - snd_pcm_open_callback_t open; - void *private_data; /* sb or wss */ - } streams[2]; -diff --git a/sound/oss/sb_audio.c b/sound/oss/sb_audio.c -index 733b014..56ce96f 100644 ---- a/sound/oss/sb_audio.c -+++ b/sound/oss/sb_audio.c -@@ -901,7 +901,7 @@ sb16_copy_from_user(int dev, - buf16 = (signed short *)(localbuf + localoffs); - while (c) - { -- locallen = (c >= LBUFCOPYSIZE ? LBUFCOPYSIZE : c); -+ locallen = ((unsigned)c >= LBUFCOPYSIZE ? LBUFCOPYSIZE : c); - if (copy_from_user(lbuf8, - userbuf+useroffs + p, - locallen)) -diff --git a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c -index 09d4648..cf234c7 100644 ---- a/sound/oss/swarm_cs4297a.c -+++ b/sound/oss/swarm_cs4297a.c -@@ -2606,7 +2606,6 @@ static int __init cs4297a_init(void) - { - struct cs4297a_state *s; - u32 pwr, id; -- mm_segment_t fs; - int rval; - #ifndef CONFIG_BCM_CS4297A_CSWARM - u64 cfg; -@@ -2696,22 +2695,23 @@ static int __init cs4297a_init(void) - if (!rval) { - char *sb1250_duart_present; - -+#if 0 -+ mm_segment_t fs; - fs = get_fs(); - set_fs(KERNEL_DS); --#if 0 - val = SOUND_MASK_LINE; - mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long) &val); - for (i = 0; i < ARRAY_SIZE(initvol); i++) { - val = initvol[i].vol; - mixer_ioctl(s, initvol[i].mixch, (unsigned long) &val); - } -+ set_fs(fs); - // cs4297a_write_ac97(s, 0x18, 0x0808); - #else - // cs4297a_write_ac97(s, 0x5e, 0x180); - cs4297a_write_ac97(s, 0x02, 0x0808); - cs4297a_write_ac97(s, 0x18, 0x0808); - #endif -- set_fs(fs); - - list_add(&s->list, &cs4297a_devs); - -diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h -index 56b4f74..7cfd41a 100644 ---- a/sound/pci/hda/hda_codec.h -+++ b/sound/pci/hda/hda_codec.h -@@ -611,7 +611,7 @@ struct hda_bus_ops { - /* notify power-up/down from codec to controller */ - void (*pm_notify)(struct hda_bus *bus); - #endif --}; -+} __no_const; - - /* template to pass to the bus constructor */ - struct hda_bus_template { -@@ -713,6 +713,7 @@ struct hda_codec_ops { - #endif - void (*reboot_notify)(struct hda_codec *codec); - }; -+typedef struct hda_codec_ops __no_const hda_codec_ops_no_const; - - /* record for amp information cache */ - struct hda_cache_head { -@@ -743,7 +744,7 @@ struct hda_pcm_ops { - struct snd_pcm_substream *substream); - int (*cleanup)(struct hda_pcm_stream *info, struct hda_codec *codec, - struct snd_pcm_substream *substream); --}; -+} __no_const; - - /* PCM information for each substream */ - struct hda_pcm_stream { -@@ -801,7 +802,7 @@ struct hda_codec { - const char *modelname; /* model name for preset */ - - /* set by patch */ -- struct hda_codec_ops patch_ops; -+ hda_codec_ops_no_const patch_ops; - - /* PCM to create, set by patch_ops.build_pcms callback */ - unsigned int num_pcms; -diff --git a/sound/pci/ice1712/ice1712.h b/sound/pci/ice1712/ice1712.h -index 0da778a..bc38b84 100644 ---- a/sound/pci/ice1712/ice1712.h -+++ b/sound/pci/ice1712/ice1712.h -@@ -269,7 +269,7 @@ struct snd_ak4xxx_private { - unsigned int mask_flags; /* total mask bits */ - struct snd_akm4xxx_ops { - void (*set_rate_val)(struct snd_akm4xxx *ak, unsigned int rate); -- } ops; -+ } __no_const ops; - }; - - struct snd_ice1712_spdif { -@@ -285,7 +285,7 @@ struct snd_ice1712_spdif { - int (*default_put)(struct snd_ice1712 *, struct snd_ctl_elem_value *ucontrol); - void (*stream_get)(struct snd_ice1712 *, struct snd_ctl_elem_value *ucontrol); - int (*stream_put)(struct snd_ice1712 *, struct snd_ctl_elem_value *ucontrol); -- } ops; -+ } __no_const ops; - }; - - -diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c -index a8159b81..5f006a5 100644 ---- a/sound/pci/ymfpci/ymfpci_main.c -+++ b/sound/pci/ymfpci/ymfpci_main.c -@@ -203,8 +203,8 @@ static void snd_ymfpci_hw_stop(struct snd_ymfpci *chip) - if ((snd_ymfpci_readl(chip, YDSXGR_STATUS) & 2) == 0) - break; - } -- if (atomic_read(&chip->interrupt_sleep_count)) { -- atomic_set(&chip->interrupt_sleep_count, 0); -+ if (atomic_read_unchecked(&chip->interrupt_sleep_count)) { -+ atomic_set_unchecked(&chip->interrupt_sleep_count, 0); - wake_up(&chip->interrupt_sleep); - } - __end: -@@ -788,7 +788,7 @@ static void snd_ymfpci_irq_wait(struct snd_ymfpci *chip) - continue; - init_waitqueue_entry(&wait, current); - add_wait_queue(&chip->interrupt_sleep, &wait); -- atomic_inc(&chip->interrupt_sleep_count); -+ atomic_inc_unchecked(&chip->interrupt_sleep_count); - schedule_timeout_uninterruptible(msecs_to_jiffies(50)); - remove_wait_queue(&chip->interrupt_sleep, &wait); - } -@@ -826,8 +826,8 @@ static irqreturn_t snd_ymfpci_interrupt(int irq, void *dev_id) - snd_ymfpci_writel(chip, YDSXGR_MODE, mode); - spin_unlock(&chip->reg_lock); - -- if (atomic_read(&chip->interrupt_sleep_count)) { -- atomic_set(&chip->interrupt_sleep_count, 0); -+ if (atomic_read_unchecked(&chip->interrupt_sleep_count)) { -+ atomic_set_unchecked(&chip->interrupt_sleep_count, 0); - wake_up(&chip->interrupt_sleep); - } - } -@@ -2398,7 +2398,7 @@ int __devinit snd_ymfpci_create(struct snd_card *card, - spin_lock_init(&chip->reg_lock); - spin_lock_init(&chip->voice_lock); - init_waitqueue_head(&chip->interrupt_sleep); -- atomic_set(&chip->interrupt_sleep_count, 0); -+ atomic_set_unchecked(&chip->interrupt_sleep_count, 0); - chip->card = card; - chip->pci = pci; - chip->irq = -1; -diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c -index 0ad8dca..7186339 100644 ---- a/sound/soc/soc-pcm.c -+++ b/sound/soc/soc-pcm.c -@@ -641,7 +641,7 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) - struct snd_soc_platform *platform = rtd->platform; - struct snd_soc_dai *codec_dai = rtd->codec_dai; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; -- struct snd_pcm_ops *soc_pcm_ops = &rtd->ops; -+ snd_pcm_ops_no_const *soc_pcm_ops = &rtd->ops; - struct snd_pcm *pcm; - char new_name[64]; - int ret = 0, playback = 0, capture = 0; -diff --git a/sound/usb/card.h b/sound/usb/card.h -index da5fa1a..113cd02 100644 ---- a/sound/usb/card.h -+++ b/sound/usb/card.h -@@ -45,6 +45,7 @@ struct snd_urb_ops { - int (*prepare_sync)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u); - int (*retire_sync)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u); - }; -+typedef struct snd_urb_ops __no_const snd_urb_ops_no_const; - - struct snd_usb_substream { - struct snd_usb_stream *stream; -@@ -94,7 +95,7 @@ struct snd_usb_substream { - struct snd_pcm_hw_constraint_list rate_list; /* limited rates */ - spinlock_t lock; - -- struct snd_urb_ops ops; /* callbacks (must be filled at init) */ -+ snd_urb_ops_no_const ops; /* callbacks (must be filled at init) */ - int last_frame_number; /* stored frame number */ - int last_delay; /* stored delay */ - }; -diff --git a/tools/gcc/Makefile b/tools/gcc/Makefile -new file mode 100644 -index 0000000..f4f9986 ---- /dev/null -+++ b/tools/gcc/Makefile -@@ -0,0 +1,41 @@ -+#CC := gcc -+#PLUGIN_SOURCE_FILES := pax_plugin.c -+#PLUGIN_OBJECT_FILES := $(patsubst %.c,%.o,$(PLUGIN_SOURCE_FILES)) -+GCCPLUGINS_DIR := $(shell $(CC) -print-file-name=plugin) -+#CFLAGS += -I$(GCCPLUGINS_DIR)/include -fPIC -O2 -Wall -W -std=gnu99 -+ -+ifeq ($(PLUGINCC),$(HOSTCC)) -+HOSTLIBS := hostlibs -+HOST_EXTRACFLAGS += -I$(GCCPLUGINS_DIR)/include -I$(GCCPLUGINS_DIR)/include/c-family -std=gnu99 -ggdb -+else -+HOSTLIBS := hostcxxlibs -+HOST_EXTRACXXFLAGS += -I$(GCCPLUGINS_DIR)/include -I$(GCCPLUGINS_DIR)/include/c-family -std=gnu++98 -ggdb -Wno-unused-parameter -+endif -+ -+$(HOSTLIBS)-y := constify_plugin.so -+$(HOSTLIBS)-$(CONFIG_PAX_MEMORY_STACKLEAK) += stackleak_plugin.so -+$(HOSTLIBS)-$(CONFIG_KALLOCSTAT_PLUGIN) += kallocstat_plugin.so -+$(HOSTLIBS)-$(CONFIG_PAX_KERNEXEC_PLUGIN) += kernexec_plugin.so -+$(HOSTLIBS)-$(CONFIG_CHECKER_PLUGIN) += checker_plugin.so -+$(HOSTLIBS)-y += colorize_plugin.so -+$(HOSTLIBS)-$(CONFIG_PAX_SIZE_OVERFLOW) += size_overflow_plugin.so -+ -+always := $($(HOSTLIBS)-y) -+ -+constify_plugin-objs := constify_plugin.o -+stackleak_plugin-objs := stackleak_plugin.o -+kallocstat_plugin-objs := kallocstat_plugin.o -+kernexec_plugin-objs := kernexec_plugin.o -+checker_plugin-objs := checker_plugin.o -+colorize_plugin-objs := colorize_plugin.o -+size_overflow_plugin-objs := size_overflow_plugin.o -+ -+$(obj)/size_overflow_plugin.o: $(objtree)/$(obj)/size_overflow_hash.h -+ -+quiet_cmd_build_size_overflow_hash = GENHASH $@ -+ cmd_build_size_overflow_hash = \ -+ $(CONFIG_SHELL) $(srctree)/$(src)/generate_size_overflow_hash.sh -d $< -o $@ -+$(objtree)/$(obj)/size_overflow_hash.h: $(src)/size_overflow_hash.data FORCE -+ $(call if_changed,build_size_overflow_hash) -+ -+targets += size_overflow_hash.h -diff --git a/tools/gcc/checker_plugin.c b/tools/gcc/checker_plugin.c -new file mode 100644 -index 0000000..d41b5af ---- /dev/null -+++ b/tools/gcc/checker_plugin.c -@@ -0,0 +1,171 @@ -+/* -+ * Copyright 2011 by the PaX Team <pageexec(a)freemail.hu> -+ * Licensed under the GPL v2 -+ * -+ * Note: the choice of the license means that the compilation process is -+ * NOT 'eligible' as defined by gcc's library exception to the GPL v3, -+ * but for the kernel it doesn't matter since it doesn't link against -+ * any of the gcc libraries -+ * -+ * gcc plugin to implement various sparse (source code checker) features -+ * -+ * TODO: -+ * - define separate __iomem, __percpu and __rcu address spaces (lots of code to patch) -+ * -+ * BUGS: -+ * - none known -+ */ -+#include "gcc-plugin.h" -+#include "config.h" -+#include "system.h" -+#include "coretypes.h" -+#include "tree.h" -+#include "tree-pass.h" -+#include "flags.h" -+#include "intl.h" -+#include "toplev.h" -+#include "plugin.h" -+//#include "expr.h" where are you... -+#include "diagnostic.h" -+#include "plugin-version.h" -+#include "tm.h" -+#include "function.h" -+#include "basic-block.h" -+#include "gimple.h" -+#include "rtl.h" -+#include "emit-rtl.h" -+#include "tree-flow.h" -+#include "target.h" -+ -+extern void c_register_addr_space (const char *str, addr_space_t as); -+extern enum machine_mode default_addr_space_pointer_mode (addr_space_t); -+extern enum machine_mode default_addr_space_address_mode (addr_space_t); -+extern bool default_addr_space_valid_pointer_mode(enum machine_mode mode, addr_space_t as); -+extern bool default_addr_space_legitimate_address_p(enum machine_mode mode, rtx mem, bool strict, addr_space_t as); -+extern rtx default_addr_space_legitimize_address(rtx x, rtx oldx, enum machine_mode mode, addr_space_t as); -+ -+extern void print_gimple_stmt(FILE *, gimple, int, int); -+extern rtx emit_move_insn(rtx x, rtx y); -+ -+int plugin_is_GPL_compatible; -+ -+static struct plugin_info checker_plugin_info = { -+ .version = "201111150100", -+}; -+ -+#define ADDR_SPACE_KERNEL 0 -+#define ADDR_SPACE_FORCE_KERNEL 1 -+#define ADDR_SPACE_USER 2 -+#define ADDR_SPACE_FORCE_USER 3 -+#define ADDR_SPACE_IOMEM 0 -+#define ADDR_SPACE_FORCE_IOMEM 0 -+#define ADDR_SPACE_PERCPU 0 -+#define ADDR_SPACE_FORCE_PERCPU 0 -+#define ADDR_SPACE_RCU 0 -+#define ADDR_SPACE_FORCE_RCU 0 -+ -+static enum machine_mode checker_addr_space_pointer_mode(addr_space_t addrspace) -+{ -+ return default_addr_space_pointer_mode(ADDR_SPACE_GENERIC); -+} -+ -+static enum machine_mode checker_addr_space_address_mode(addr_space_t addrspace) -+{ -+ return default_addr_space_address_mode(ADDR_SPACE_GENERIC); -+} -+ -+static bool checker_addr_space_valid_pointer_mode(enum machine_mode mode, addr_space_t as) -+{ -+ return default_addr_space_valid_pointer_mode(mode, as); -+} -+ -+static bool checker_addr_space_legitimate_address_p(enum machine_mode mode, rtx mem, bool strict, addr_space_t as) -+{ -+ return default_addr_space_legitimate_address_p(mode, mem, strict, ADDR_SPACE_GENERIC); -+} -+ -+static rtx checker_addr_space_legitimize_address(rtx x, rtx oldx, enum machine_mode mode, addr_space_t as) -+{ -+ return default_addr_space_legitimize_address(x, oldx, mode, as); -+} -+ -+static bool checker_addr_space_subset_p(addr_space_t subset, addr_space_t superset) -+{ -+ if (subset == ADDR_SPACE_FORCE_KERNEL && superset == ADDR_SPACE_KERNEL) -+ return true; -+ -+ if (subset == ADDR_SPACE_FORCE_USER && superset == ADDR_SPACE_USER) -+ return true; -+ -+ if (subset == ADDR_SPACE_FORCE_IOMEM && superset == ADDR_SPACE_IOMEM) -+ return true; -+ -+ if (subset == ADDR_SPACE_KERNEL && superset == ADDR_SPACE_FORCE_USER) -+ return true; -+ -+ if (subset == ADDR_SPACE_KERNEL && superset == ADDR_SPACE_FORCE_IOMEM) -+ return true; -+ -+ if (subset == ADDR_SPACE_USER && superset == ADDR_SPACE_FORCE_KERNEL) -+ return true; -+ -+ if (subset == ADDR_SPACE_IOMEM && superset == ADDR_SPACE_FORCE_KERNEL) -+ return true; -+ -+ return subset == superset; -+} -+ -+static rtx checker_addr_space_convert(rtx op, tree from_type, tree to_type) -+{ -+// addr_space_t from_as = TYPE_ADDR_SPACE(TREE_TYPE(from_type)); -+// addr_space_t to_as = TYPE_ADDR_SPACE(TREE_TYPE(to_type)); -+ -+ return op; -+} -+ -+static void register_checker_address_spaces(void *event_data, void *data) -+{ -+ c_register_addr_space("__kernel", ADDR_SPACE_KERNEL); -+ c_register_addr_space("__force_kernel", ADDR_SPACE_FORCE_KERNEL); -+ c_register_addr_space("__user", ADDR_SPACE_USER); -+ c_register_addr_space("__force_user", ADDR_SPACE_FORCE_USER); -+// c_register_addr_space("__iomem", ADDR_SPACE_IOMEM); -+// c_register_addr_space("__force_iomem", ADDR_SPACE_FORCE_IOMEM); -+// c_register_addr_space("__percpu", ADDR_SPACE_PERCPU); -+// c_register_addr_space("__force_percpu", ADDR_SPACE_FORCE_PERCPU); -+// c_register_addr_space("__rcu", ADDR_SPACE_RCU); -+// c_register_addr_space("__force_rcu", ADDR_SPACE_FORCE_RCU); -+ -+ targetm.addr_space.pointer_mode = checker_addr_space_pointer_mode; -+ targetm.addr_space.address_mode = checker_addr_space_address_mode; -+ targetm.addr_space.valid_pointer_mode = checker_addr_space_valid_pointer_mode; -+ targetm.addr_space.legitimate_address_p = checker_addr_space_legitimate_address_p; -+// targetm.addr_space.legitimize_address = checker_addr_space_legitimize_address; -+ targetm.addr_space.subset_p = checker_addr_space_subset_p; -+ targetm.addr_space.convert = checker_addr_space_convert; -+} -+ -+int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version) -+{ -+ const char * const plugin_name = plugin_info->base_name; -+ const int argc = plugin_info->argc; -+ const struct plugin_argument * const argv = plugin_info->argv; -+ int i; -+ -+ if (!plugin_default_version_check(version, &gcc_version)) { -+ error(G_("incompatible gcc/plugin versions")); -+ return 1; -+ } -+ -+ register_callback(plugin_name, PLUGIN_INFO, NULL, &checker_plugin_info); -+ -+ for (i = 0; i < argc; ++i) -+ error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key); -+ -+ if (TARGET_64BIT == 0) -+ return 0; -+ -+ register_callback(plugin_name, PLUGIN_PRAGMAS, register_checker_address_spaces, NULL); -+ -+ return 0; -+} -diff --git a/tools/gcc/colorize_plugin.c b/tools/gcc/colorize_plugin.c -new file mode 100644 -index 0000000..7a5e311 ---- /dev/null -+++ b/tools/gcc/colorize_plugin.c -@@ -0,0 +1,148 @@ -+/* -+ * Copyright 2012 by PaX Team <pageexec(a)freemail.hu> -+ * Licensed under the GPL v2 -+ * -+ * Note: the choice of the license means that the compilation process is -+ * NOT 'eligible' as defined by gcc's library exception to the GPL v3, -+ * but for the kernel it doesn't matter since it doesn't link against -+ * any of the gcc libraries -+ * -+ * gcc plugin to colorize diagnostic output -+ * -+ */ -+ -+#include "gcc-plugin.h" -+#include "config.h" -+#include "system.h" -+#include "coretypes.h" -+#include "tree.h" -+#include "tree-pass.h" -+#include "flags.h" -+#include "intl.h" -+#include "toplev.h" -+#include "plugin.h" -+#include "diagnostic.h" -+#include "plugin-version.h" -+#include "tm.h" -+ -+int plugin_is_GPL_compatible; -+ -+static struct plugin_info colorize_plugin_info = { -+ .version = "201203092200", -+ .help = NULL, -+}; -+ -+#define GREEN "\033[32m\033[2m" -+#define LIGHTGREEN "\033[32m\033[1m" -+#define YELLOW "\033[33m\033[2m" -+#define LIGHTYELLOW "\033[33m\033[1m" -+#define RED "\033[31m\033[2m" -+#define LIGHTRED "\033[31m\033[1m" -+#define BLUE "\033[34m\033[2m" -+#define LIGHTBLUE "\033[34m\033[1m" -+#define BRIGHT "\033[m\033[1m" -+#define NORMAL "\033[m" -+ -+static diagnostic_starter_fn old_starter; -+static diagnostic_finalizer_fn old_finalizer; -+ -+static void start_colorize(diagnostic_context *context, diagnostic_info *diagnostic) -+{ -+ const char *color; -+ char *newprefix; -+ -+ switch (diagnostic->kind) { -+ case DK_NOTE: -+ color = LIGHTBLUE; -+ break; -+ -+ case DK_PEDWARN: -+ case DK_WARNING: -+ color = LIGHTYELLOW; -+ break; -+ -+ case DK_ERROR: -+ case DK_FATAL: -+ case DK_ICE: -+ case DK_PERMERROR: -+ case DK_SORRY: -+ color = LIGHTRED; -+ break; -+ -+ default: -+ color = NORMAL; -+ } -+ -+ old_starter(context, diagnostic); -+ if (-1 == asprintf(&newprefix, "%s%s" NORMAL, color, context->printer->prefix)) -+ return; -+ pp_destroy_prefix(context->printer); -+ pp_set_prefix(context->printer, newprefix); -+} -+ -+static void finalize_colorize(diagnostic_context *context, diagnostic_info *diagnostic) -+{ -+ old_finalizer(context, diagnostic); -+} -+ -+static void colorize_arm(void) -+{ -+ old_starter = diagnostic_starter(global_dc); -+ old_finalizer = diagnostic_finalizer(global_dc); -+ -+ diagnostic_starter(global_dc) = start_colorize; -+ diagnostic_finalizer(global_dc) = finalize_colorize; -+} -+ -+static unsigned int execute_colorize_rearm(void) -+{ -+ if (diagnostic_starter(global_dc) == start_colorize) -+ return 0; -+ -+ colorize_arm(); -+ return 0; -+} -+ -+struct simple_ipa_opt_pass pass_ipa_colorize_rearm = { -+ .pass = { -+ .type = SIMPLE_IPA_PASS, -+ .name = "colorize_rearm", -+ .gate = NULL, -+ .execute = execute_colorize_rearm, -+ .sub = NULL, -+ .next = NULL, -+ .static_pass_number = 0, -+ .tv_id = TV_NONE, -+ .properties_required = 0, -+ .properties_provided = 0, -+ .properties_destroyed = 0, -+ .todo_flags_start = 0, -+ .todo_flags_finish = 0 -+ } -+}; -+ -+static void colorize_start_unit(void *gcc_data, void *user_data) -+{ -+ colorize_arm(); -+} -+ -+int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version) -+{ -+ const char * const plugin_name = plugin_info->base_name; -+ struct register_pass_info colorize_rearm_pass_info = { -+ .pass = &pass_ipa_colorize_rearm.pass, -+ .reference_pass_name = "*free_lang_data", -+ .ref_pass_instance_number = 0, -+ .pos_op = PASS_POS_INSERT_AFTER -+ }; -+ -+ if (!plugin_default_version_check(version, &gcc_version)) { -+ error(G_("incompatible gcc/plugin versions")); -+ return 1; -+ } -+ -+ register_callback(plugin_name, PLUGIN_INFO, NULL, &colorize_plugin_info); -+ register_callback(plugin_name, PLUGIN_START_UNIT, &colorize_start_unit, NULL); -+ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &colorize_rearm_pass_info); -+ return 0; -+} -diff --git a/tools/gcc/constify_plugin.c b/tools/gcc/constify_plugin.c -new file mode 100644 -index 0000000..89b7f56 ---- /dev/null -+++ b/tools/gcc/constify_plugin.c -@@ -0,0 +1,328 @@ -+/* -+ * Copyright 2011 by Emese Revfy <re.emese(a)gmail.com> -+ * Copyright 2011 by PaX Team <pageexec(a)freemail.hu> -+ * Licensed under the GPL v2, or (at your option) v3 -+ * -+ * This gcc plugin constifies all structures which contain only function pointers or are explicitly marked for constification. -+ * -+ * Homepage: -+ * http://www.grsecurity.net/~ephox/const_plugin/ -+ * -+ * Usage: -+ * $ gcc -I`gcc -print-file-name=plugin`/include -fPIC -shared -O2 -o constify_plugin.so constify_plugin.c -+ * $ gcc -fplugin=constify_plugin.so test.c -O2 -+ */ -+ -+#include "gcc-plugin.h" -+#include "config.h" -+#include "system.h" -+#include "coretypes.h" -+#include "tree.h" -+#include "tree-pass.h" -+#include "flags.h" -+#include "intl.h" -+#include "toplev.h" -+#include "plugin.h" -+#include "diagnostic.h" -+#include "plugin-version.h" -+#include "tm.h" -+#include "function.h" -+#include "basic-block.h" -+#include "gimple.h" -+#include "rtl.h" -+#include "emit-rtl.h" -+#include "tree-flow.h" -+ -+#define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1(TYPE) -+ -+int plugin_is_GPL_compatible; -+ -+static struct plugin_info const_plugin_info = { -+ .version = "201205300030", -+ .help = "no-constify\tturn off constification\n", -+}; -+ -+static void deconstify_tree(tree node); -+ -+static void deconstify_type(tree type) -+{ -+ tree field; -+ -+ for (field = TYPE_FIELDS(type); field; field = TREE_CHAIN(field)) { -+ tree type = TREE_TYPE(field); -+ -+ if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE) -+ continue; -+ if (!TYPE_READONLY(type)) -+ continue; -+ -+ deconstify_tree(field); -+ } -+ TYPE_READONLY(type) = 0; -+ C_TYPE_FIELDS_READONLY(type) = 0; -+} -+ -+static void deconstify_tree(tree node) -+{ -+ tree old_type, new_type, field; -+ -+ old_type = TREE_TYPE(node); -+ -+ gcc_assert(TYPE_READONLY(old_type) && (TYPE_QUALS(old_type) & TYPE_QUAL_CONST)); -+ -+ new_type = build_qualified_type(old_type, TYPE_QUALS(old_type) & ~TYPE_QUAL_CONST); -+ TYPE_FIELDS(new_type) = copy_list(TYPE_FIELDS(new_type)); -+ for (field = TYPE_FIELDS(new_type); field; field = TREE_CHAIN(field)) -+ DECL_FIELD_CONTEXT(field) = new_type; -+ -+ deconstify_type(new_type); -+ -+ TREE_READONLY(node) = 0; -+ TREE_TYPE(node) = new_type; -+} -+ -+static tree handle_no_const_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs) -+{ -+ tree type; -+ -+ *no_add_attrs = true; -+ if (TREE_CODE(*node) == FUNCTION_DECL) { -+ error("%qE attribute does not apply to functions", name); -+ return NULL_TREE; -+ } -+ -+ if (TREE_CODE(*node) == VAR_DECL) { -+ error("%qE attribute does not apply to variables", name); -+ return NULL_TREE; -+ } -+ -+ if (TYPE_P(*node)) { -+ if (TREE_CODE(*node) == RECORD_TYPE || TREE_CODE(*node) == UNION_TYPE) -+ *no_add_attrs = false; -+ else -+ error("%qE attribute applies to struct and union types only", name); -+ return NULL_TREE; -+ } -+ -+ type = TREE_TYPE(*node); -+ -+ if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE) { -+ error("%qE attribute applies to struct and union types only", name); -+ return NULL_TREE; -+ } -+ -+ if (lookup_attribute(IDENTIFIER_POINTER(name), TYPE_ATTRIBUTES(type))) { -+ error("%qE attribute is already applied to the type", name); -+ return NULL_TREE; -+ } -+ -+ if (TREE_CODE(*node) == TYPE_DECL && !TYPE_READONLY(type)) { -+ error("%qE attribute used on type that is not constified", name); -+ return NULL_TREE; -+ } -+ -+ if (TREE_CODE(*node) == TYPE_DECL) { -+ deconstify_tree(*node); -+ return NULL_TREE; -+ } -+ -+ return NULL_TREE; -+} -+ -+static void constify_type(tree type) -+{ -+ TYPE_READONLY(type) = 1; -+ C_TYPE_FIELDS_READONLY(type) = 1; -+} -+ -+static tree handle_do_const_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs) -+{ -+ *no_add_attrs = true; -+ if (!TYPE_P(*node)) { -+ error("%qE attribute applies to types only", name); -+ return NULL_TREE; -+ } -+ -+ if (TREE_CODE(*node) != RECORD_TYPE && TREE_CODE(*node) != UNION_TYPE) { -+ error("%qE attribute applies to struct and union types only", name); -+ return NULL_TREE; -+ } -+ -+ *no_add_attrs = false; -+ constify_type(*node); -+ return NULL_TREE; -+} -+ -+static struct attribute_spec no_const_attr = { -+ .name = "no_const", -+ .min_length = 0, -+ .max_length = 0, -+ .decl_required = false, -+ .type_required = false, -+ .function_type_required = false, -+ .handler = handle_no_const_attribute, -+#if BUILDING_GCC_VERSION >= 4007 -+ .affects_type_identity = true -+#endif -+}; -+ -+static struct attribute_spec do_const_attr = { -+ .name = "do_const", -+ .min_length = 0, -+ .max_length = 0, -+ .decl_required = false, -+ .type_required = false, -+ .function_type_required = false, -+ .handler = handle_do_const_attribute, -+#if BUILDING_GCC_VERSION >= 4007 -+ .affects_type_identity = true -+#endif -+}; -+ -+static void register_attributes(void *event_data, void *data) -+{ -+ register_attribute(&no_const_attr); -+ register_attribute(&do_const_attr); -+} -+ -+static bool is_fptr(tree field) -+{ -+ tree ptr = TREE_TYPE(field); -+ -+ if (TREE_CODE(ptr) != POINTER_TYPE) -+ return false; -+ -+ return TREE_CODE(TREE_TYPE(ptr)) == FUNCTION_TYPE; -+} -+ -+static bool walk_struct(tree node) -+{ -+ tree field; -+ -+ if (TYPE_FIELDS(node) == NULL_TREE) -+ return false; -+ -+ if (lookup_attribute("no_const", TYPE_ATTRIBUTES(node))) { -+ gcc_assert(!TYPE_READONLY(node)); -+ deconstify_type(node); -+ return false; -+ } -+ -+ for (field = TYPE_FIELDS(node); field; field = TREE_CHAIN(field)) { -+ tree type = TREE_TYPE(field); -+ enum tree_code code = TREE_CODE(type); -+ if (code == RECORD_TYPE || code == UNION_TYPE) { -+ if (!(walk_struct(type))) -+ return false; -+ } else if (!is_fptr(field) && !TREE_READONLY(field)) -+ return false; -+ } -+ return true; -+} -+ -+static void finish_type(void *event_data, void *data) -+{ -+ tree type = (tree)event_data; -+ -+ if (type == NULL_TREE) -+ return; -+ -+ if (TYPE_READONLY(type)) -+ return; -+ -+ if (walk_struct(type)) -+ constify_type(type); -+} -+ -+static unsigned int check_local_variables(void); -+ -+struct gimple_opt_pass pass_local_variable = { -+ { -+ .type = GIMPLE_PASS, -+ .name = "check_local_variables", -+ .gate = NULL, -+ .execute = check_local_variables, -+ .sub = NULL, -+ .next = NULL, -+ .static_pass_number = 0, -+ .tv_id = TV_NONE, -+ .properties_required = 0, -+ .properties_provided = 0, -+ .properties_destroyed = 0, -+ .todo_flags_start = 0, -+ .todo_flags_finish = 0 -+ } -+}; -+ -+static unsigned int check_local_variables(void) -+{ -+ tree var; -+ referenced_var_iterator rvi; -+ -+#if BUILDING_GCC_VERSION == 4005 -+ FOR_EACH_REFERENCED_VAR(var, rvi) { -+#else -+ FOR_EACH_REFERENCED_VAR(cfun, var, rvi) { -+#endif -+ tree type = TREE_TYPE(var); -+ -+ if (!DECL_P(var) || TREE_STATIC(var) || DECL_EXTERNAL(var)) -+ continue; -+ -+ if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE) -+ continue; -+ -+ if (!TYPE_READONLY(type)) -+ continue; -+ -+// if (lookup_attribute("no_const", DECL_ATTRIBUTES(var))) -+// continue; -+ -+// if (lookup_attribute("no_const", TYPE_ATTRIBUTES(type))) -+// continue; -+ -+ if (walk_struct(type)) { -+ error_at(DECL_SOURCE_LOCATION(var), "constified variable %qE cannot be local", var); -+ return 1; -+ } -+ } -+ return 0; -+} -+ -+int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version) -+{ -+ const char * const plugin_name = plugin_info->base_name; -+ const int argc = plugin_info->argc; -+ const struct plugin_argument * const argv = plugin_info->argv; -+ int i; -+ bool constify = true; -+ -+ struct register_pass_info local_variable_pass_info = { -+ .pass = &pass_local_variable.pass, -+ .reference_pass_name = "*referenced_vars", -+ .ref_pass_instance_number = 0, -+ .pos_op = PASS_POS_INSERT_AFTER -+ }; -+ -+ if (!plugin_default_version_check(version, &gcc_version)) { -+ error(G_("incompatible gcc/plugin versions")); -+ return 1; -+ } -+ -+ for (i = 0; i < argc; ++i) { -+ if (!(strcmp(argv[i].key, "no-constify"))) { -+ constify = false; -+ continue; -+ } -+ error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key); -+ } -+ -+ register_callback(plugin_name, PLUGIN_INFO, NULL, &const_plugin_info); -+ if (constify) { -+ register_callback(plugin_name, PLUGIN_FINISH_TYPE, finish_type, NULL); -+ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &local_variable_pass_info); -+ } -+ register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL); -+ -+ return 0; -+} -diff --git a/tools/gcc/generate_size_overflow_hash.sh b/tools/gcc/generate_size_overflow_hash.sh -new file mode 100644 -index 0000000..a0fe8b2 ---- /dev/null -+++ b/tools/gcc/generate_size_overflow_hash.sh -@@ -0,0 +1,94 @@ -+#!/bin/bash -+ -+# This script generates the hash table (size_overflow_hash.h) for the size_overflow gcc plugin (size_overflow_plugin.c). -+ -+header1="size_overflow_hash.h" -+database="size_overflow_hash.data" -+n=65536 -+ -+usage() { -+cat <<EOF -+usage: $0 options -+OPTIONS: -+ -h|--help help -+ -o header file -+ -d database file -+ -n hash array size -+EOF -+ return 0 -+} -+ -+while true -+do -+ case "$1" in -+ -h|--help) usage && exit 0;; -+ -n) n=$2; shift 2;; -+ -o) header1="$2"; shift 2;; -+ -d) database="$2"; shift 2;; -+ --) shift 1; break ;; -+ *) break ;; -+ esac -+done -+ -+create_defines() { -+ for i in `seq 1 10` -+ do -+ echo -e "#define PARAM"$i" (1U << "$i")" >> "$header1" -+ done -+ echo >> "$header1" -+} -+ -+create_structs () { -+ rm -f "$header1" -+ -+ create_defines -+ -+ cat "$database" | while read data -+ do -+ data_array=($data) -+ struct_hash_name="${data_array[0]}" -+ funcn="${data_array[1]}" -+ params="${data_array[2]}" -+ next="${data_array[5]}" -+ -+ echo "struct size_overflow_hash $struct_hash_name = {" >> "$header1" -+ -+ echo -e "\t.next\t= $next,\n\t.name\t= \"$funcn\"," >> "$header1" -+ echo -en "\t.param\t= " >> "$header1" -+ line= -+ for param_num in ${params//-/ }; -+ do -+ line="${line}PARAM"$param_num"|" -+ done -+ -+ echo -e "${line%?},\n};\n" >> "$header1" -+ done -+} -+ -+create_headers () { -+ echo "struct size_overflow_hash *size_overflow_hash[$n] = {" >> "$header1" -+} -+ -+create_array_elements () { -+ index=0 -+ grep -v "nohasharray" $database | sort -n -k 4 | while read data -+ do -+ data_array=($data) -+ i="${data_array[3]}" -+ hash="${data_array[4]}" -+ while [[ $index -lt $i ]] -+ do -+ echo -e "\t["$index"]\t= NULL," >> "$header1" -+ index=$(($index + 1)) -+ done -+ index=$(($index + 1)) -+ echo -e "\t["$i"]\t= &"$hash"," >> "$header1" -+ done -+ echo '};' >> $header1 -+} -+ -+create_structs -+create_headers -+create_array_elements -+ -+exit 0 -diff --git a/tools/gcc/kallocstat_plugin.c b/tools/gcc/kallocstat_plugin.c -new file mode 100644 -index 0000000..a5eabce ---- /dev/null -+++ b/tools/gcc/kallocstat_plugin.c -@@ -0,0 +1,167 @@ -+/* -+ * Copyright 2011 by the PaX Team <pageexec(a)freemail.hu> -+ * Licensed under the GPL v2 -+ * -+ * Note: the choice of the license means that the compilation process is -+ * NOT 'eligible' as defined by gcc's library exception to the GPL v3, -+ * but for the kernel it doesn't matter since it doesn't link against -+ * any of the gcc libraries -+ * -+ * gcc plugin to find the distribution of k*alloc sizes -+ * -+ * TODO: -+ * -+ * BUGS: -+ * - none known -+ */ -+#include "gcc-plugin.h" -+#include "config.h" -+#include "system.h" -+#include "coretypes.h" -+#include "tree.h" -+#include "tree-pass.h" -+#include "flags.h" -+#include "intl.h" -+#include "toplev.h" -+#include "plugin.h" -+//#include "expr.h" where are you... -+#include "diagnostic.h" -+#include "plugin-version.h" -+#include "tm.h" -+#include "function.h" -+#include "basic-block.h" -+#include "gimple.h" -+#include "rtl.h" -+#include "emit-rtl.h" -+ -+extern void print_gimple_stmt(FILE *, gimple, int, int); -+ -+int plugin_is_GPL_compatible; -+ -+static const char * const kalloc_functions[] = { -+ "__kmalloc", -+ "kmalloc", -+ "kmalloc_large", -+ "kmalloc_node", -+ "kmalloc_order", -+ "kmalloc_order_trace", -+ "kmalloc_slab", -+ "kzalloc", -+ "kzalloc_node", -+}; -+ -+static struct plugin_info kallocstat_plugin_info = { -+ .version = "201111150100", -+}; -+ -+static unsigned int execute_kallocstat(void); -+ -+static struct gimple_opt_pass kallocstat_pass = { -+ .pass = { -+ .type = GIMPLE_PASS, -+ .name = "kallocstat", -+ .gate = NULL, -+ .execute = execute_kallocstat, -+ .sub = NULL, -+ .next = NULL, -+ .static_pass_number = 0, -+ .tv_id = TV_NONE, -+ .properties_required = 0, -+ .properties_provided = 0, -+ .properties_destroyed = 0, -+ .todo_flags_start = 0, -+ .todo_flags_finish = 0 -+ } -+}; -+ -+static bool is_kalloc(const char *fnname) -+{ -+ size_t i; -+ -+ for (i = 0; i < ARRAY_SIZE(kalloc_functions); i++) -+ if (!strcmp(fnname, kalloc_functions[i])) -+ return true; -+ return false; -+} -+ -+static unsigned int execute_kallocstat(void) -+{ -+ basic_block bb; -+ -+ // 1. loop through BBs and GIMPLE statements -+ FOR_EACH_BB(bb) { -+ gimple_stmt_iterator gsi; -+ for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) { -+ // gimple match: -+ tree fndecl, size; -+ gimple call_stmt; -+ const char *fnname; -+ -+ // is it a call -+ call_stmt = gsi_stmt(gsi); -+ if (!is_gimple_call(call_stmt)) -+ continue; -+ fndecl = gimple_call_fndecl(call_stmt); -+ if (fndecl == NULL_TREE) -+ continue; -+ if (TREE_CODE(fndecl) != FUNCTION_DECL) -+ continue; -+ -+ // is it a call to k*alloc -+ fnname = IDENTIFIER_POINTER(DECL_NAME(fndecl)); -+ if (!is_kalloc(fnname)) -+ continue; -+ -+ // is the size arg the result of a simple const assignment -+ size = gimple_call_arg(call_stmt, 0); -+ while (true) { -+ gimple def_stmt; -+ expanded_location xloc; -+ size_t size_val; -+ -+ if (TREE_CODE(size) != SSA_NAME) -+ break; -+ def_stmt = SSA_NAME_DEF_STMT(size); -+ if (!def_stmt || !is_gimple_assign(def_stmt)) -+ break; -+ if (gimple_num_ops(def_stmt) != 2) -+ break; -+ size = gimple_assign_rhs1(def_stmt); -+ if (!TREE_CONSTANT(size)) -+ continue; -+ xloc = expand_location(gimple_location(def_stmt)); -+ if (!xloc.file) -+ xloc = expand_location(DECL_SOURCE_LOCATION(current_function_decl)); -+ size_val = TREE_INT_CST_LOW(size); -+ fprintf(stderr, "kallocsize: %8zu %8zx %s %s:%u\n", size_val, size_val, fnname, xloc.file, xloc.line); -+ break; -+ } -+//print_gimple_stmt(stderr, call_stmt, 0, TDF_LINENO); -+//debug_tree(gimple_call_fn(call_stmt)); -+//print_node(stderr, "pax", fndecl, 4); -+ } -+ } -+ -+ return 0; -+} -+ -+int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version) -+{ -+ const char * const plugin_name = plugin_info->base_name; -+ struct register_pass_info kallocstat_pass_info = { -+ .pass = &kallocstat_pass.pass, -+ .reference_pass_name = "ssa", -+ .ref_pass_instance_number = 0, -+ .pos_op = PASS_POS_INSERT_AFTER -+ }; -+ -+ if (!plugin_default_version_check(version, &gcc_version)) { -+ error(G_("incompatible gcc/plugin versions")); -+ return 1; -+ } -+ -+ register_callback(plugin_name, PLUGIN_INFO, NULL, &kallocstat_plugin_info); -+ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kallocstat_pass_info); -+ -+ return 0; -+} -diff --git a/tools/gcc/kernexec_plugin.c b/tools/gcc/kernexec_plugin.c -new file mode 100644 -index 0000000..d8a8da2 ---- /dev/null -+++ b/tools/gcc/kernexec_plugin.c -@@ -0,0 +1,427 @@ -+/* -+ * Copyright 2011 by the PaX Team <pageexec(a)freemail.hu> -+ * Licensed under the GPL v2 -+ * -+ * Note: the choice of the license means that the compilation process is -+ * NOT 'eligible' as defined by gcc's library exception to the GPL v3, -+ * but for the kernel it doesn't matter since it doesn't link against -+ * any of the gcc libraries -+ * -+ * gcc plugin to make KERNEXEC/amd64 almost as good as it is on i386 -+ * -+ * TODO: -+ * -+ * BUGS: -+ * - none known -+ */ -+#include "gcc-plugin.h" -+#include "config.h" -+#include "system.h" -+#include "coretypes.h" -+#include "tree.h" -+#include "tree-pass.h" -+#include "flags.h" -+#include "intl.h" -+#include "toplev.h" -+#include "plugin.h" -+//#include "expr.h" where are you... -+#include "diagnostic.h" -+#include "plugin-version.h" -+#include "tm.h" -+#include "function.h" -+#include "basic-block.h" -+#include "gimple.h" -+#include "rtl.h" -+#include "emit-rtl.h" -+#include "tree-flow.h" -+ -+extern void print_gimple_stmt(FILE *, gimple, int, int); -+extern rtx emit_move_insn(rtx x, rtx y); -+ -+int plugin_is_GPL_compatible; -+ -+static struct plugin_info kernexec_plugin_info = { -+ .version = "201111291120", -+ .help = "method=[bts|or]\tinstrumentation method\n" -+}; -+ -+static unsigned int execute_kernexec_reload(void); -+static unsigned int execute_kernexec_fptr(void); -+static unsigned int execute_kernexec_retaddr(void); -+static bool kernexec_cmodel_check(void); -+ -+static void (*kernexec_instrument_fptr)(gimple_stmt_iterator *); -+static void (*kernexec_instrument_retaddr)(rtx); -+ -+static struct gimple_opt_pass kernexec_reload_pass = { -+ .pass = { -+ .type = GIMPLE_PASS, -+ .name = "kernexec_reload", -+ .gate = kernexec_cmodel_check, -+ .execute = execute_kernexec_reload, -+ .sub = NULL, -+ .next = NULL, -+ .static_pass_number = 0, -+ .tv_id = TV_NONE, -+ .properties_required = 0, -+ .properties_provided = 0, -+ .properties_destroyed = 0, -+ .todo_flags_start = 0, -+ .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_remove_unused_locals | TODO_update_ssa_no_phi -+ } -+}; -+ -+static struct gimple_opt_pass kernexec_fptr_pass = { -+ .pass = { -+ .type = GIMPLE_PASS, -+ .name = "kernexec_fptr", -+ .gate = kernexec_cmodel_check, -+ .execute = execute_kernexec_fptr, -+ .sub = NULL, -+ .next = NULL, -+ .static_pass_number = 0, -+ .tv_id = TV_NONE, -+ .properties_required = 0, -+ .properties_provided = 0, -+ .properties_destroyed = 0, -+ .todo_flags_start = 0, -+ .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_remove_unused_locals | TODO_update_ssa_no_phi -+ } -+}; -+ -+static struct rtl_opt_pass kernexec_retaddr_pass = { -+ .pass = { -+ .type = RTL_PASS, -+ .name = "kernexec_retaddr", -+ .gate = kernexec_cmodel_check, -+ .execute = execute_kernexec_retaddr, -+ .sub = NULL, -+ .next = NULL, -+ .static_pass_number = 0, -+ .tv_id = TV_NONE, -+ .properties_required = 0, -+ .properties_provided = 0, -+ .properties_destroyed = 0, -+ .todo_flags_start = 0, -+ .todo_flags_finish = TODO_dump_func | TODO_ggc_collect -+ } -+}; -+ -+static bool kernexec_cmodel_check(void) -+{ -+ tree section; -+ -+ if (ix86_cmodel != CM_KERNEL) -+ return false; -+ -+ section = lookup_attribute("section", DECL_ATTRIBUTES(current_function_decl)); -+ if (!section || !TREE_VALUE(section)) -+ return true; -+ -+ section = TREE_VALUE(TREE_VALUE(section)); -+ if (strncmp(TREE_STRING_POINTER(section), ".vsyscall_", 10)) -+ return true; -+ -+ return false; -+} -+ -+/* -+ * add special KERNEXEC instrumentation: reload %r10 after it has been clobbered -+ */ -+static void kernexec_reload_fptr_mask(gimple_stmt_iterator *gsi) -+{ -+ gimple asm_movabs_stmt; -+ -+ // build asm volatile("movabs $0x8000000000000000, %%r10\n\t" : : : ); -+ asm_movabs_stmt = gimple_build_asm_vec("movabs $0x8000000000000000, %%r10\n\t", NULL, NULL, NULL, NULL); -+ gimple_asm_set_volatile(asm_movabs_stmt, true); -+ gsi_insert_after(gsi, asm_movabs_stmt, GSI_CONTINUE_LINKING); -+ update_stmt(asm_movabs_stmt); -+} -+ -+/* -+ * find all asm() stmts that clobber r10 and add a reload of r10 -+ */ -+static unsigned int execute_kernexec_reload(void) -+{ -+ basic_block bb; -+ -+ // 1. loop through BBs and GIMPLE statements -+ FOR_EACH_BB(bb) { -+ gimple_stmt_iterator gsi; -+ -+ for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) { -+ // gimple match: __asm__ ("" : : : "r10"); -+ gimple asm_stmt; -+ size_t nclobbers; -+ -+ // is it an asm ... -+ asm_stmt = gsi_stmt(gsi); -+ if (gimple_code(asm_stmt) != GIMPLE_ASM) -+ continue; -+ -+ // ... clobbering r10 -+ nclobbers = gimple_asm_nclobbers(asm_stmt); -+ while (nclobbers--) { -+ tree op = gimple_asm_clobber_op(asm_stmt, nclobbers); -+ if (strcmp(TREE_STRING_POINTER(TREE_VALUE(op)), "r10")) -+ continue; -+ kernexec_reload_fptr_mask(&gsi); -+//print_gimple_stmt(stderr, asm_stmt, 0, TDF_LINENO); -+ break; -+ } -+ } -+ } -+ -+ return 0; -+} -+ -+/* -+ * add special KERNEXEC instrumentation: force MSB of fptr to 1, which will produce -+ * a non-canonical address from a userland ptr and will just trigger a GPF on dereference -+ */ -+static void kernexec_instrument_fptr_bts(gimple_stmt_iterator *gsi) -+{ -+ gimple assign_intptr, assign_new_fptr, call_stmt; -+ tree intptr, old_fptr, new_fptr, kernexec_mask; -+ -+ call_stmt = gsi_stmt(*gsi); -+ old_fptr = gimple_call_fn(call_stmt); -+ -+ // create temporary unsigned long variable used for bitops and cast fptr to it -+ intptr = create_tmp_var(long_unsigned_type_node, "kernexec_bts"); -+ add_referenced_var(intptr); -+ mark_sym_for_renaming(intptr); -+ assign_intptr = gimple_build_assign(intptr, fold_convert(long_unsigned_type_node, old_fptr)); -+ gsi_insert_before(gsi, assign_intptr, GSI_SAME_STMT); -+ update_stmt(assign_intptr); -+ -+ // apply logical or to temporary unsigned long and bitmask -+ kernexec_mask = build_int_cstu(long_long_unsigned_type_node, 0x8000000000000000LL); -+// kernexec_mask = build_int_cstu(long_long_unsigned_type_node, 0xffffffff80000000LL); -+ assign_intptr = gimple_build_assign(intptr, fold_build2(BIT_IOR_EXPR, long_long_unsigned_type_node, intptr, kernexec_mask)); -+ gsi_insert_before(gsi, assign_intptr, GSI_SAME_STMT); -+ update_stmt(assign_intptr); -+ -+ // cast temporary unsigned long back to a temporary fptr variable -+ new_fptr = create_tmp_var(TREE_TYPE(old_fptr), "kernexec_fptr"); -+ add_referenced_var(new_fptr); -+ mark_sym_for_renaming(new_fptr); -+ assign_new_fptr = gimple_build_assign(new_fptr, fold_convert(TREE_TYPE(old_fptr), intptr)); -+ gsi_insert_before(gsi, assign_new_fptr, GSI_SAME_STMT); -+ update_stmt(assign_new_fptr); -+ -+ // replace call stmt fn with the new fptr -+ gimple_call_set_fn(call_stmt, new_fptr); -+ update_stmt(call_stmt); -+} -+ -+static void kernexec_instrument_fptr_or(gimple_stmt_iterator *gsi) -+{ -+ gimple asm_or_stmt, call_stmt; -+ tree old_fptr, new_fptr, input, output; -+ VEC(tree, gc) *inputs = NULL; -+ VEC(tree, gc) *outputs = NULL; -+ -+ call_stmt = gsi_stmt(*gsi); -+ old_fptr = gimple_call_fn(call_stmt); -+ -+ // create temporary fptr variable -+ new_fptr = create_tmp_var(TREE_TYPE(old_fptr), "kernexec_or"); -+ add_referenced_var(new_fptr); -+ mark_sym_for_renaming(new_fptr); -+ -+ // build asm volatile("orq %%r10, %0\n\t" : "=r"(new_fptr) : "0"(old_fptr)); -+ input = build_tree_list(NULL_TREE, build_string(2, "0")); -+ input = chainon(NULL_TREE, build_tree_list(input, old_fptr)); -+ output = build_tree_list(NULL_TREE, build_string(3, "=r")); -+ output = chainon(NULL_TREE, build_tree_list(output, new_fptr)); -+ VEC_safe_push(tree, gc, inputs, input); -+ VEC_safe_push(tree, gc, outputs, output); -+ asm_or_stmt = gimple_build_asm_vec("orq %%r10, %0\n\t", inputs, outputs, NULL, NULL); -+ gimple_asm_set_volatile(asm_or_stmt, true); -+ gsi_insert_before(gsi, asm_or_stmt, GSI_SAME_STMT); -+ update_stmt(asm_or_stmt); -+ -+ // replace call stmt fn with the new fptr -+ gimple_call_set_fn(call_stmt, new_fptr); -+ update_stmt(call_stmt); -+} -+ -+/* -+ * find all C level function pointer dereferences and forcibly set the highest bit of the pointer -+ */ -+static unsigned int execute_kernexec_fptr(void) -+{ -+ basic_block bb; -+ -+ // 1. loop through BBs and GIMPLE statements -+ FOR_EACH_BB(bb) { -+ gimple_stmt_iterator gsi; -+ -+ for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) { -+ // gimple match: h_1 = get_fptr (); D.2709_3 = h_1 (x_2(D)); -+ tree fn; -+ gimple call_stmt; -+ -+ // is it a call ... -+ call_stmt = gsi_stmt(gsi); -+ if (!is_gimple_call(call_stmt)) -+ continue; -+ fn = gimple_call_fn(call_stmt); -+ if (TREE_CODE(fn) == ADDR_EXPR) -+ continue; -+ if (TREE_CODE(fn) != SSA_NAME) -+ gcc_unreachable(); -+ -+ // ... through a function pointer -+ fn = SSA_NAME_VAR(fn); -+ if (TREE_CODE(fn) != VAR_DECL && TREE_CODE(fn) != PARM_DECL) -+ continue; -+ fn = TREE_TYPE(fn); -+ if (TREE_CODE(fn) != POINTER_TYPE) -+ continue; -+ fn = TREE_TYPE(fn); -+ if (TREE_CODE(fn) != FUNCTION_TYPE) -+ continue; -+ -+ kernexec_instrument_fptr(&gsi); -+ -+//debug_tree(gimple_call_fn(call_stmt)); -+//print_gimple_stmt(stderr, call_stmt, 0, TDF_LINENO); -+ } -+ } -+ -+ return 0; -+} -+ -+// add special KERNEXEC instrumentation: btsq $63,(%rsp) just before retn -+static void kernexec_instrument_retaddr_bts(rtx insn) -+{ -+ rtx btsq; -+ rtvec argvec, constraintvec, labelvec; -+ int line; -+ -+ // create asm volatile("btsq $63,(%%rsp)":::) -+ argvec = rtvec_alloc(0); -+ constraintvec = rtvec_alloc(0); -+ labelvec = rtvec_alloc(0); -+ line = expand_location(RTL_LOCATION(insn)).line; -+ btsq = gen_rtx_ASM_OPERANDS(VOIDmode, "btsq $63,(%%rsp)", empty_string, 0, argvec, constraintvec, labelvec, line); -+ MEM_VOLATILE_P(btsq) = 1; -+// RTX_FRAME_RELATED_P(btsq) = 1; // not for ASM_OPERANDS -+ emit_insn_before(btsq, insn); -+} -+ -+// add special KERNEXEC instrumentation: orq %r10,(%rsp) just before retn -+static void kernexec_instrument_retaddr_or(rtx insn) -+{ -+ rtx orq; -+ rtvec argvec, constraintvec, labelvec; -+ int line; -+ -+ // create asm volatile("orq %%r10,(%%rsp)":::) -+ argvec = rtvec_alloc(0); -+ constraintvec = rtvec_alloc(0); -+ labelvec = rtvec_alloc(0); -+ line = expand_location(RTL_LOCATION(insn)).line; -+ orq = gen_rtx_ASM_OPERANDS(VOIDmode, "orq %%r10,(%%rsp)", empty_string, 0, argvec, constraintvec, labelvec, line); -+ MEM_VOLATILE_P(orq) = 1; -+// RTX_FRAME_RELATED_P(orq) = 1; // not for ASM_OPERANDS -+ emit_insn_before(orq, insn); -+} -+ -+/* -+ * find all asm level function returns and forcibly set the highest bit of the return address -+ */ -+static unsigned int execute_kernexec_retaddr(void) -+{ -+ rtx insn; -+ -+ // 1. find function returns -+ for (insn = get_insns(); insn; insn = NEXT_INSN(insn)) { -+ // rtl match: (jump_insn 41 40 42 2 (return) fptr.c:42 634 {return_internal} (nil)) -+ // (jump_insn 12 9 11 2 (parallel [ (return) (unspec [ (0) ] UNSPEC_REP) ]) fptr.c:46 635 {return_internal_long} (nil)) -+ rtx body; -+ -+ // is it a retn -+ if (!JUMP_P(insn)) -+ continue; -+ body = PATTERN(insn); -+ if (GET_CODE(body) == PARALLEL) -+ body = XVECEXP(body, 0, 0); -+ if (GET_CODE(body) != RETURN) -+ continue; -+ kernexec_instrument_retaddr(insn); -+ } -+ -+// print_simple_rtl(stderr, get_insns()); -+// print_rtl(stderr, get_insns()); -+ -+ return 0; -+} -+ -+int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version) -+{ -+ const char * const plugin_name = plugin_info->base_name; -+ const int argc = plugin_info->argc; -+ const struct plugin_argument * const argv = plugin_info->argv; -+ int i; -+ struct register_pass_info kernexec_reload_pass_info = { -+ .pass = &kernexec_reload_pass.pass, -+ .reference_pass_name = "ssa", -+ .ref_pass_instance_number = 0, -+ .pos_op = PASS_POS_INSERT_AFTER -+ }; -+ struct register_pass_info kernexec_fptr_pass_info = { -+ .pass = &kernexec_fptr_pass.pass, -+ .reference_pass_name = "ssa", -+ .ref_pass_instance_number = 0, -+ .pos_op = PASS_POS_INSERT_AFTER -+ }; -+ struct register_pass_info kernexec_retaddr_pass_info = { -+ .pass = &kernexec_retaddr_pass.pass, -+ .reference_pass_name = "pro_and_epilogue", -+ .ref_pass_instance_number = 0, -+ .pos_op = PASS_POS_INSERT_AFTER -+ }; -+ -+ if (!plugin_default_version_check(version, &gcc_version)) { -+ error(G_("incompatible gcc/plugin versions")); -+ return 1; -+ } -+ -+ register_callback(plugin_name, PLUGIN_INFO, NULL, &kernexec_plugin_info); -+ -+ if (TARGET_64BIT == 0) -+ return 0; -+ -+ for (i = 0; i < argc; ++i) { -+ if (!strcmp(argv[i].key, "method")) { -+ if (!argv[i].value) { -+ error(G_("no value supplied for option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key); -+ continue; -+ } -+ if (!strcmp(argv[i].value, "bts")) { -+ kernexec_instrument_fptr = kernexec_instrument_fptr_bts; -+ kernexec_instrument_retaddr = kernexec_instrument_retaddr_bts; -+ } else if (!strcmp(argv[i].value, "or")) { -+ kernexec_instrument_fptr = kernexec_instrument_fptr_or; -+ kernexec_instrument_retaddr = kernexec_instrument_retaddr_or; -+ fix_register("r10", 1, 1); -+ } else -+ error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value); -+ continue; -+ } -+ error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key); -+ } -+ if (!kernexec_instrument_fptr || !kernexec_instrument_retaddr) -+ error(G_("no instrumentation method was selected via '-fplugin-arg-%s-method'"), plugin_name); -+ -+ if (kernexec_instrument_fptr == kernexec_instrument_fptr_or) -+ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kernexec_reload_pass_info); -+ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kernexec_fptr_pass_info); 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b/tools/gcc/size_overflow_plugin.c -@@ -0,0 +1,1204 @@ -+/* -+ * Copyright 2011, 2012 by Emese Revfy <re.emese(a)gmail.com> -+ * Licensed under the GPL v2, or (at your option) v3 -+ * -+ * Homepage: -+ * http://www.grsecurity.net/~ephox/overflow_plugin/ -+ * -+ * This plugin recomputes expressions of function arguments marked by a size_overflow attribute -+ * with double integer precision (DImode/TImode for 32/64 bit integer types). -+ * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed. -+ * -+ * Usage: -+ * $ gcc -I`gcc -print-file-name=plugin`/include/c-family -I`gcc -print-file-name=plugin`/include -fPIC -shared -O2 -ggdb -Wall -W -Wno-missing-field-initializers -o size_overflow_plugin.so size_overflow_plugin.c -+ * $ gcc -fplugin=size_overflow_plugin.so test.c -O2 -+ */ -+ -+#include "gcc-plugin.h" -+#include "config.h" -+#include "system.h" -+#include "coretypes.h" -+#include "tree.h" -+#include "tree-pass.h" -+#include "intl.h" -+#include "plugin-version.h" -+#include "tm.h" -+#include "toplev.h" -+#include "function.h" -+#include "tree-flow.h" -+#include "plugin.h" -+#include "gimple.h" -+#include "c-common.h" -+#include "diagnostic.h" -+#include "cfgloop.h" -+ -+struct size_overflow_hash { -+ struct size_overflow_hash *next; -+ const char *name; -+ unsigned int param; -+}; -+ -+#include "size_overflow_hash.h" -+ -+#define __unused __attribute__((__unused__)) -+#define NAME(node) IDENTIFIER_POINTER(DECL_NAME(node)) -+#define NAME_LEN(node) IDENTIFIER_LENGTH(DECL_NAME(node)) -+#define BEFORE_STMT true -+#define AFTER_STMT false -+#define CREATE_NEW_VAR NULL_TREE -+#define CODES_LIMIT 32 -+#define MAX_PARAM 10 -+ -+#if BUILDING_GCC_VERSION == 4005 -+#define DECL_CHAIN(NODE) (TREE_CHAIN(DECL_MINIMAL_CHECK(NODE))) -+#endif -+ -+int plugin_is_GPL_compatible; -+void debug_gimple_stmt(gimple gs); -+ -+static tree expand(struct pointer_set_t *visited, bool *potentionally_overflowed, tree var); -+static tree signed_size_overflow_type; -+static tree unsigned_size_overflow_type; -+static tree report_size_overflow_decl; -+static tree const_char_ptr_type_node; -+static unsigned int handle_function(void); -+ -+static struct plugin_info size_overflow_plugin_info = { -+ .version = "20120618beta", -+ .help = "no-size-overflow\tturn off size overflow checking\n", -+}; -+ -+static tree handle_size_overflow_attribute(tree *node, tree __unused name, tree args, int __unused flags, bool *no_add_attrs) -+{ -+ unsigned int arg_count = type_num_arguments(*node); -+ -+ for (; args; args = TREE_CHAIN(args)) { -+ tree position = TREE_VALUE(args); -+ if (TREE_CODE(position) != INTEGER_CST || TREE_INT_CST_HIGH(position) || TREE_INT_CST_LOW(position) < 1 || TREE_INT_CST_LOW(position) > arg_count ) { -+ error("handle_size_overflow_attribute: overflow parameter outside range."); -+ *no_add_attrs = true; -+ } -+ } -+ return NULL_TREE; -+} -+ -+static struct attribute_spec no_size_overflow_attr = { -+ .name = "size_overflow", -+ .min_length = 1, -+ .max_length = -1, -+ .decl_required = false, -+ .type_required = true, -+ .function_type_required = true, -+ .handler = handle_size_overflow_attribute, -+#if BUILDING_GCC_VERSION >= 4007 -+ .affects_type_identity = false -+#endif -+}; -+ -+static void register_attributes(void __unused *event_data, void __unused *data) -+{ -+ register_attribute(&no_size_overflow_attr); -+} -+ -+// http://www.team5150.com/~andrew/noncryptohashzoo2~/CrapWow.html -+static unsigned int CrapWow(const char *key, unsigned int len, unsigned int seed) -+{ -+#define cwfold( a, b, lo, hi ) { p = (unsigned int)(a) * (unsigned long long)(b); lo ^= (unsigned int)p; hi ^= (unsigned int)(p >> 32); } -+#define cwmixa( in ) { cwfold( in, m, k, h ); } -+#define cwmixb( in ) { cwfold( in, n, h, k ); } -+ -+ const unsigned int m = 0x57559429; -+ const unsigned int n = 0x5052acdb; -+ const unsigned int *key4 = (const unsigned int *)key; -+ unsigned int h = len; -+ unsigned int k = len + seed + n; -+ unsigned long long p; -+ -+ while (len >= 8) { -+ cwmixb(key4[0]) cwmixa(key4[1]) key4 += 2; -+ len -= 8; -+ } -+ if (len >= 4) { -+ cwmixb(key4[0]) key4 += 1; -+ len -= 4; -+ } -+ if (len) -+ cwmixa(key4[0] & ((1 << (len * 8)) - 1 )); -+ cwmixb(h ^ (k + n)); -+ return k ^ h; -+ -+#undef cwfold -+#undef cwmixa -+#undef cwmixb -+} -+ -+static inline unsigned int get_hash_num(const char *fndecl, const char *tree_codes, unsigned int len, unsigned int seed) -+{ -+ unsigned int fn = CrapWow(fndecl, strlen(fndecl), seed) & 0xffff; -+ unsigned int codes = CrapWow(tree_codes, len, seed) & 0xffff; -+ return fn ^ codes; -+} -+ -+static inline tree get_original_function_decl(tree fndecl) -+{ -+ if (DECL_ABSTRACT_ORIGIN(fndecl)) -+ return DECL_ABSTRACT_ORIGIN(fndecl); -+ return fndecl; -+} -+ -+static inline gimple get_def_stmt(tree node) -+{ -+ gcc_assert(TREE_CODE(node) == SSA_NAME); -+ return SSA_NAME_DEF_STMT(node); -+} -+ -+static unsigned char get_tree_code(tree type) -+{ -+ switch (TREE_CODE(type)) { -+ case ARRAY_TYPE: -+ return 0; -+ case BOOLEAN_TYPE: -+ return 1; -+ case ENUMERAL_TYPE: -+ return 2; -+ case FUNCTION_TYPE: -+ return 3; -+ case INTEGER_TYPE: -+ return 4; -+ case POINTER_TYPE: -+ return 5; -+ case RECORD_TYPE: -+ return 6; -+ case UNION_TYPE: -+ return 7; -+ case VOID_TYPE: -+ return 8; -+ case REAL_TYPE: -+ return 9; -+ case VECTOR_TYPE: -+ return 10; -+ case REFERENCE_TYPE: -+ return 11; -+ default: -+ debug_tree(type); -+ gcc_unreachable(); -+ } -+} -+ -+static size_t add_type_codes(tree type, unsigned char *tree_codes, size_t len) -+{ -+ gcc_assert(type != NULL_TREE); -+ -+ while (type && len < CODES_LIMIT) { -+ tree_codes[len] = get_tree_code(type); -+ len++; -+ type = TREE_TYPE(type); -+ } -+ return len; -+} -+ -+static unsigned int get_function_decl(tree fndecl, unsigned char *tree_codes) -+{ -+ tree arg, result, type = TREE_TYPE(fndecl); -+ enum tree_code code = TREE_CODE(type); -+ size_t len = 0; -+ -+ gcc_assert(code == FUNCTION_TYPE); -+ -+ arg = TYPE_ARG_TYPES(type); -+ // skip builtins __builtin_constant_p -+ if (!arg && DECL_BUILT_IN(fndecl)) -+ return 0; -+ gcc_assert(arg != NULL_TREE); -+ -+ if (TREE_CODE_CLASS(code) == tcc_type) -+ result = type; -+ else -+ result = DECL_RESULT(fndecl); -+ -+ gcc_assert(result != NULL_TREE); -+ len = add_type_codes(TREE_TYPE(result), tree_codes, len); -+ -+ while (arg && len < CODES_LIMIT) { -+ len = add_type_codes(TREE_VALUE(arg), tree_codes, len); -+ arg = TREE_CHAIN(arg); -+ } -+ -+ gcc_assert(len != 0); -+ return len; -+} -+ -+static struct size_overflow_hash *get_function_hash(tree fndecl) -+{ -+ unsigned int hash; -+ struct size_overflow_hash *entry; -+ unsigned char tree_codes[CODES_LIMIT]; -+ size_t len; -+ const char *func_name = NAME(fndecl); -+ -+ len = get_function_decl(fndecl, tree_codes); -+ if (len == 0) -+ return NULL; -+ -+ hash = get_hash_num(func_name, (const char*) tree_codes, len, 0); -+ -+ entry = size_overflow_hash[hash]; -+ while (entry) { -+ if (!strcmp(entry->name, func_name)) -+ return entry; -+ entry = entry->next; -+ } -+ -+ return NULL; -+} -+ -+static void check_arg_type(tree var) -+{ -+ tree type = TREE_TYPE(var); -+ enum tree_code code = TREE_CODE(type); -+ -+ gcc_assert(code == INTEGER_TYPE || code == ENUMERAL_TYPE || -+ (code == POINTER_TYPE && TREE_CODE(TREE_TYPE(type)) == VOID_TYPE) || -+ (code == POINTER_TYPE && TREE_CODE(TREE_TYPE(type)) == INTEGER_TYPE)); -+} -+ -+static int find_arg_number(tree arg, tree func) -+{ -+ tree var; -+ bool match = false; -+ unsigned int argnum = 1; -+ -+ if (TREE_CODE(arg) == SSA_NAME) -+ arg = SSA_NAME_VAR(arg); -+ -+ for (var = DECL_ARGUMENTS(func); var; var = TREE_CHAIN(var)) { -+ if (strcmp(NAME(arg), NAME(var))) { -+ argnum++; -+ continue; -+ } -+ check_arg_type(var); -+ -+ match = true; -+ break; -+ } -+ if (!match) { -+ warning(0, "find_arg_number: cannot find the %s argument in %s", NAME(arg), NAME(func)); -+ return 0; -+ } -+ return argnum; -+} -+ -+static void print_missing_msg(tree func, unsigned int argnum) -+{ -+ unsigned int new_hash; -+ size_t len; -+ unsigned char tree_codes[CODES_LIMIT]; -+ location_t loc = DECL_SOURCE_LOCATION(func); -+ const char *curfunc = NAME(func); -+ -+ len = get_function_decl(func, tree_codes); -+ new_hash = get_hash_num(curfunc, (const char *) tree_codes, len, 0); -+ inform(loc, "Function %s is missing from the size_overflow hash table +%s+%d+%u+", curfunc, curfunc, argnum, new_hash); -+} -+ -+static void check_missing_attribute(tree arg) -+{ -+ tree type, func = get_original_function_decl(current_function_decl); -+ unsigned int argnum; -+ struct size_overflow_hash *hash; -+ -+ gcc_assert(TREE_CODE(arg) != COMPONENT_REF); -+ -+ type = TREE_TYPE(arg); -+ // skip function pointers -+ if (TREE_CODE(type) == POINTER_TYPE && TREE_CODE(TREE_TYPE(type)) == FUNCTION_TYPE) -+ return; -+ -+ if (lookup_attribute("size_overflow", TYPE_ATTRIBUTES(TREE_TYPE(func)))) -+ return; -+ -+ argnum = find_arg_number(arg, func); -+ if (argnum == 0) -+ return; -+ -+ hash = get_function_hash(func); -+ if (!hash || !(hash->param & (1U << argnum))) -+ print_missing_msg(func, argnum); -+} -+ -+static tree create_new_var(tree type) -+{ -+ tree new_var = create_tmp_var(type, "cicus"); -+ -+ add_referenced_var(new_var); -+ mark_sym_for_renaming(new_var); -+ return new_var; -+} -+ -+static bool is_bool(tree node) -+{ -+ tree type; -+ -+ if (node == NULL_TREE) -+ return false; -+ -+ type = TREE_TYPE(node); -+ if (!INTEGRAL_TYPE_P(type)) -+ return false; -+ if (TREE_CODE(type) == BOOLEAN_TYPE) -+ return true; -+ if (TYPE_PRECISION(type) == 1) -+ return true; -+ return false; -+} -+ -+static tree cast_a_tree(tree type, tree var) -+{ -+ gcc_assert(type != NULL_TREE && var != NULL_TREE); -+ gcc_assert(fold_convertible_p(type, var)); -+ -+ return fold_convert(type, var); -+} -+ -+static tree signed_cast(tree var) -+{ -+ return cast_a_tree(signed_size_overflow_type, var); -+} -+ -+static gimple build_cast_stmt(tree type, tree var, tree new_var, location_t loc) -+{ -+ gimple assign; -+ -+ if (new_var == CREATE_NEW_VAR) -+ new_var = create_new_var(type); -+ -+ assign = gimple_build_assign(new_var, cast_a_tree(type, var)); -+ gimple_set_location(assign, loc); -+ gimple_set_lhs(assign, make_ssa_name(new_var, assign)); -+ -+ return assign; -+} -+ -+static tree create_assign(struct pointer_set_t *visited, bool *potentionally_overflowed, gimple oldstmt, tree rhs1, bool before) -+{ -+ tree oldstmt_rhs1; -+ enum tree_code code; -+ gimple stmt; -+ gimple_stmt_iterator gsi; -+ -+ if (!*potentionally_overflowed) -+ return NULL_TREE; -+ -+ if (rhs1 == NULL_TREE) { -+ debug_gimple_stmt(oldstmt); -+ error("create_assign: rhs1 is NULL_TREE"); -+ gcc_unreachable(); -+ } -+ -+ oldstmt_rhs1 = gimple_assign_rhs1(oldstmt); -+ code = TREE_CODE(oldstmt_rhs1); -+ if (code == PARM_DECL || (code == SSA_NAME && gimple_code(get_def_stmt(oldstmt_rhs1)) == GIMPLE_NOP)) -+ check_missing_attribute(oldstmt_rhs1); -+ -+ stmt = build_cast_stmt(signed_size_overflow_type, rhs1, CREATE_NEW_VAR, gimple_location(oldstmt)); -+ gsi = gsi_for_stmt(oldstmt); -+ if (lookup_stmt_eh_lp(oldstmt) != 0) { -+ basic_block next_bb, cur_bb; -+ edge e; -+ -+ gcc_assert(before == false); -+ gcc_assert(stmt_can_throw_internal(oldstmt)); -+ gcc_assert(gimple_code(oldstmt) == GIMPLE_CALL); -+ gcc_assert(!gsi_end_p(gsi)); -+ -+ cur_bb = gimple_bb(oldstmt); -+ next_bb = cur_bb->next_bb; -+ e = find_edge(cur_bb, next_bb); -+ gcc_assert(e != NULL); -+ gcc_assert(e->flags & EDGE_FALLTHRU); -+ -+ gsi = gsi_after_labels(next_bb); -+ gcc_assert(!gsi_end_p(gsi)); -+ before = true; -+ } -+ if (before) -+ gsi_insert_before(&gsi, stmt, GSI_NEW_STMT); -+ else -+ gsi_insert_after(&gsi, stmt, GSI_NEW_STMT); -+ update_stmt(stmt); -+ pointer_set_insert(visited, oldstmt); -+ return gimple_get_lhs(stmt); -+} -+ -+static tree dup_assign(struct pointer_set_t *visited, bool *potentionally_overflowed, gimple oldstmt, tree rhs1, tree rhs2, tree __unused rhs3) -+{ -+ tree new_var, lhs = gimple_get_lhs(oldstmt); -+ gimple stmt; -+ gimple_stmt_iterator gsi; -+ -+ if (!*potentionally_overflowed) -+ return NULL_TREE; -+ -+ if (gimple_num_ops(oldstmt) != 4 && rhs1 == NULL_TREE) { -+ rhs1 = gimple_assign_rhs1(oldstmt); -+ rhs1 = create_assign(visited, potentionally_overflowed, oldstmt, rhs1, BEFORE_STMT); -+ } -+ if (gimple_num_ops(oldstmt) == 3 && rhs2 == NULL_TREE) { -+ rhs2 = gimple_assign_rhs2(oldstmt); -+ rhs2 = create_assign(visited, potentionally_overflowed, oldstmt, rhs2, BEFORE_STMT); -+ } -+ -+ stmt = gimple_copy(oldstmt); -+ gimple_set_location(stmt, gimple_location(oldstmt)); -+ -+ if (gimple_assign_rhs_code(oldstmt) == WIDEN_MULT_EXPR) -+ gimple_assign_set_rhs_code(stmt, MULT_EXPR); -+ -+ if (is_bool(lhs)) -+ new_var = SSA_NAME_VAR(lhs); -+ else -+ new_var = create_new_var(signed_size_overflow_type); -+ new_var = make_ssa_name(new_var, stmt); -+ gimple_set_lhs(stmt, new_var); -+ -+ if (rhs1 != NULL_TREE) { -+ if (!gimple_assign_cast_p(oldstmt)) -+ rhs1 = signed_cast(rhs1); -+ gimple_assign_set_rhs1(stmt, rhs1); -+ } -+ -+ if (rhs2 != NULL_TREE) -+ gimple_assign_set_rhs2(stmt, rhs2); -+#if BUILDING_GCC_VERSION >= 4007 -+ if (rhs3 != NULL_TREE) -+ gimple_assign_set_rhs3(stmt, rhs3); -+#endif -+ gimple_set_vuse(stmt, gimple_vuse(oldstmt)); -+ gimple_set_vdef(stmt, gimple_vdef(oldstmt)); -+ -+ gsi = gsi_for_stmt(oldstmt); -+ gsi_insert_after(&gsi, stmt, GSI_SAME_STMT); -+ update_stmt(stmt); -+ pointer_set_insert(visited, oldstmt); -+ return gimple_get_lhs(stmt); -+} -+ -+static gimple overflow_create_phi_node(gimple oldstmt, tree var) -+{ -+ basic_block bb; -+ gimple phi; -+ gimple_stmt_iterator gsi = gsi_for_stmt(oldstmt); -+ -+ bb = gsi_bb(gsi); -+ -+ phi = create_phi_node(var, bb); -+ gsi = gsi_last(phi_nodes(bb)); -+ gsi_remove(&gsi, false); -+ -+ gsi = gsi_for_stmt(oldstmt); -+ gsi_insert_after(&gsi, phi, GSI_NEW_STMT); -+ gimple_set_bb(phi, bb); -+ return phi; -+} -+ -+static basic_block create_a_first_bb(void) -+{ -+ basic_block first_bb; -+ -+ first_bb = split_block_after_labels(ENTRY_BLOCK_PTR)->dest; -+ if (dom_info_available_p(CDI_DOMINATORS)) -+ set_immediate_dominator(CDI_DOMINATORS, first_bb, ENTRY_BLOCK_PTR); -+ return first_bb; -+} -+ -+static gimple cast_old_phi_arg(gimple oldstmt, tree arg, tree new_var, unsigned int i) -+{ -+ basic_block bb; -+ gimple newstmt, def_stmt; -+ gimple_stmt_iterator gsi; -+ -+ newstmt = build_cast_stmt(signed_size_overflow_type, arg, new_var, gimple_location(oldstmt)); -+ if (TREE_CODE(arg) == SSA_NAME) { -+ def_stmt = get_def_stmt(arg); -+ if (gimple_code(def_stmt) != GIMPLE_NOP) { -+ gsi = gsi_for_stmt(def_stmt); -+ gsi_insert_after(&gsi, newstmt, GSI_NEW_STMT); -+ return newstmt; -+ } -+ } -+ -+ bb = gimple_phi_arg_edge(oldstmt, i)->src; -+ if (bb->index == 0) -+ bb = create_a_first_bb(); -+ gsi = gsi_after_labels(bb); -+ gsi_insert_before(&gsi, newstmt, GSI_NEW_STMT); -+ return newstmt; -+} -+ -+static gimple handle_new_phi_arg(tree arg, tree new_var, tree new_rhs) -+{ -+ gimple newstmt; -+ gimple_stmt_iterator gsi; -+ void (*gsi_insert)(gimple_stmt_iterator *, gimple, enum gsi_iterator_update); -+ gimple def_newstmt = get_def_stmt(new_rhs); -+ -+ gsi_insert = gsi_insert_after; -+ gsi = gsi_for_stmt(def_newstmt); -+ -+ switch (gimple_code(get_def_stmt(arg))) { -+ case GIMPLE_PHI: -+ newstmt = gimple_build_assign(new_var, new_rhs); -+ gsi = gsi_after_labels(gimple_bb(def_newstmt)); -+ gsi_insert = gsi_insert_before; -+ break; -+ case GIMPLE_ASM: -+ case GIMPLE_CALL: -+ newstmt = gimple_build_assign(new_var, new_rhs); -+ break; -+ case GIMPLE_ASSIGN: -+ newstmt = gimple_build_assign(new_var, gimple_get_lhs(def_newstmt)); -+ break; -+ default: -+ /* unknown gimple_code (handle_build_new_phi_arg) */ -+ gcc_unreachable(); -+ } -+ -+ gimple_set_lhs(newstmt, make_ssa_name(new_var, newstmt)); -+ gsi_insert(&gsi, newstmt, GSI_NEW_STMT); -+ update_stmt(newstmt); -+ return newstmt; -+} -+ -+static tree build_new_phi_arg(struct pointer_set_t *visited, bool *potentionally_overflowed, tree arg, tree new_var) -+{ -+ gimple newstmt; -+ tree new_rhs; -+ -+ new_rhs = expand(visited, potentionally_overflowed, arg); -+ -+ if (new_rhs == NULL_TREE) -+ return NULL_TREE; -+ -+ newstmt = handle_new_phi_arg(arg, new_var, new_rhs); -+ return gimple_get_lhs(newstmt); -+} -+ -+static tree build_new_phi(struct pointer_set_t *visited, bool *potentionally_overflowed, gimple oldstmt) -+{ -+ gimple phi; -+ tree new_var = create_new_var(signed_size_overflow_type); -+ unsigned int i, n = gimple_phi_num_args(oldstmt); -+ -+ pointer_set_insert(visited, oldstmt); -+ phi = overflow_create_phi_node(oldstmt, new_var); -+ for (i = 0; i < n; i++) { -+ tree arg, lhs; -+ -+ arg = gimple_phi_arg_def(oldstmt, i); -+ if (is_gimple_constant(arg)) -+ arg = signed_cast(arg); -+ lhs = build_new_phi_arg(visited, potentionally_overflowed, arg, new_var); -+ if (lhs == NULL_TREE) -+ lhs = gimple_get_lhs(cast_old_phi_arg(oldstmt, arg, new_var, i)); -+ add_phi_arg(phi, lhs, gimple_phi_arg_edge(oldstmt, i), gimple_location(oldstmt)); -+ } -+ -+ update_stmt(phi); -+ return gimple_phi_result(phi); -+} -+ -+static tree handle_unary_rhs(struct pointer_set_t *visited, bool *potentionally_overflowed, tree var) -+{ -+ gimple def_stmt = get_def_stmt(var); -+ tree new_rhs1, rhs1 = gimple_assign_rhs1(def_stmt); -+ -+ *potentionally_overflowed = true; -+ new_rhs1 = expand(visited, potentionally_overflowed, rhs1); -+ if (new_rhs1 == NULL_TREE) { -+ if (TREE_CODE(TREE_TYPE(rhs1)) == POINTER_TYPE) -+ return create_assign(visited, potentionally_overflowed, def_stmt, var, AFTER_STMT); -+ else -+ return create_assign(visited, potentionally_overflowed, def_stmt, rhs1, AFTER_STMT); -+ } -+ return dup_assign(visited, potentionally_overflowed, def_stmt, new_rhs1, NULL_TREE, NULL_TREE); -+} -+ -+static tree handle_unary_ops(struct pointer_set_t *visited, bool *potentionally_overflowed, tree var) -+{ -+ gimple def_stmt = get_def_stmt(var); -+ tree rhs1 = gimple_assign_rhs1(def_stmt); -+ -+ if (is_gimple_constant(rhs1)) -+ return dup_assign(visited, potentionally_overflowed, def_stmt, signed_cast(rhs1), NULL_TREE, NULL_TREE); -+ -+ gcc_assert(TREE_CODE(rhs1) != COND_EXPR); -+ switch (TREE_CODE(rhs1)) { -+ case SSA_NAME: -+ return handle_unary_rhs(visited, potentionally_overflowed, var); -+ -+ case ARRAY_REF: -+ case BIT_FIELD_REF: -+ case ADDR_EXPR: -+ case COMPONENT_REF: -+ case INDIRECT_REF: -+#if BUILDING_GCC_VERSION >= 4006 -+ case MEM_REF: -+#endif -+ case PARM_DECL: -+ case TARGET_MEM_REF: -+ case VAR_DECL: -+ return create_assign(visited, potentionally_overflowed, def_stmt, var, AFTER_STMT); -+ -+ default: -+ debug_gimple_stmt(def_stmt); -+ debug_tree(rhs1); -+ gcc_unreachable(); -+ } -+} -+ -+static void insert_cond(basic_block cond_bb, tree arg, enum tree_code cond_code, tree type_value) -+{ -+ gimple cond_stmt; -+ gimple_stmt_iterator gsi = gsi_last_bb(cond_bb); -+ -+ cond_stmt = gimple_build_cond(cond_code, arg, type_value, NULL_TREE, NULL_TREE); -+ gsi_insert_after(&gsi, cond_stmt, GSI_CONTINUE_LINKING); -+ update_stmt(cond_stmt); -+} -+ -+static tree create_string_param(tree string) -+{ -+ tree i_type, a_type; -+ int length = TREE_STRING_LENGTH(string); -+ -+ gcc_assert(length > 0); -+ -+ i_type = build_index_type(build_int_cst(NULL_TREE, length - 1)); -+ a_type = build_array_type(char_type_node, i_type); -+ -+ TREE_TYPE(string) = a_type; -+ TREE_CONSTANT(string) = 1; -+ TREE_READONLY(string) = 1; -+ -+ return build1(ADDR_EXPR, ptr_type_node, string); -+} -+ -+static void insert_cond_result(basic_block bb_true, gimple stmt, tree arg) -+{ -+ gimple func_stmt, def_stmt; -+ tree current_func, loc_file, loc_line; -+ expanded_location xloc; -+ gimple_stmt_iterator gsi = gsi_start_bb(bb_true); -+ -+ def_stmt = get_def_stmt(arg); -+ xloc = expand_location(gimple_location(def_stmt)); -+ -+ if (!gimple_has_location(def_stmt)) { -+ xloc = expand_location(gimple_location(stmt)); -+ if (!gimple_has_location(stmt)) -+ xloc = expand_location(DECL_SOURCE_LOCATION(current_function_decl)); -+ } -+ -+ loc_line = build_int_cstu(unsigned_type_node, xloc.line); -+ -+ loc_file = build_string(strlen(xloc.file) + 1, xloc.file); -+ loc_file = create_string_param(loc_file); -+ -+ current_func = build_string(NAME_LEN(current_function_decl) + 1, NAME(current_function_decl)); -+ current_func = create_string_param(current_func); -+ -+ // void report_size_overflow(const char *file, unsigned int line, const char *func) -+ func_stmt = gimple_build_call(report_size_overflow_decl, 3, loc_file, loc_line, current_func); -+ -+ gsi_insert_after(&gsi, func_stmt, GSI_CONTINUE_LINKING); -+} -+ -+static void __unused print_the_code_insertions(gimple stmt) -+{ -+ location_t loc = gimple_location(stmt); -+ -+ inform(loc, "Integer size_overflow check applied here."); -+} -+ -+static void insert_check_size_overflow(gimple stmt, enum tree_code cond_code, tree arg, tree type_value) -+{ -+ basic_block cond_bb, join_bb, bb_true; -+ edge e; -+ gimple_stmt_iterator gsi = gsi_for_stmt(stmt); -+ -+ cond_bb = gimple_bb(stmt); -+ gsi_prev(&gsi); -+ if (gsi_end_p(gsi)) -+ e = split_block_after_labels(cond_bb); -+ else -+ e = split_block(cond_bb, gsi_stmt(gsi)); -+ cond_bb = e->src; -+ join_bb = e->dest; -+ e->flags = EDGE_FALSE_VALUE; -+ e->probability = REG_BR_PROB_BASE; -+ -+ bb_true = create_empty_bb(cond_bb); -+ make_edge(cond_bb, bb_true, EDGE_TRUE_VALUE); -+ make_edge(cond_bb, join_bb, EDGE_FALSE_VALUE); -+ make_edge(bb_true, join_bb, EDGE_FALLTHRU); -+ -+ if (dom_info_available_p(CDI_DOMINATORS)) { -+ set_immediate_dominator(CDI_DOMINATORS, bb_true, cond_bb); -+ set_immediate_dominator(CDI_DOMINATORS, join_bb, cond_bb); -+ } -+ -+ if (current_loops != NULL) { -+ gcc_assert(cond_bb->loop_father == join_bb->loop_father); -+ add_bb_to_loop(bb_true, cond_bb->loop_father); -+ } -+ -+ insert_cond(cond_bb, arg, cond_code, type_value); -+ insert_cond_result(bb_true, stmt, arg); -+ -+// print_the_code_insertions(stmt); -+} -+ -+static gimple cast_to_unsigned_size_overflow_type(gimple stmt, tree cast_rhs) -+{ -+ gimple ucast_stmt; -+ gimple_stmt_iterator gsi; -+ location_t loc = gimple_location(stmt); -+ -+ ucast_stmt = build_cast_stmt(unsigned_size_overflow_type, cast_rhs, CREATE_NEW_VAR, loc); -+ gsi = gsi_for_stmt(stmt); -+ gsi_insert_before(&gsi, ucast_stmt, GSI_SAME_STMT); -+ return ucast_stmt; -+} -+ -+static void check_size_overflow(gimple stmt, tree cast_rhs, tree rhs, bool *potentionally_overflowed) -+{ -+ tree type_max, type_min, rhs_type = TREE_TYPE(rhs); -+ gimple ucast_stmt; -+ -+ if (!*potentionally_overflowed) -+ return; -+ -+ if (TYPE_UNSIGNED(rhs_type)) { -+ ucast_stmt = cast_to_unsigned_size_overflow_type(stmt, cast_rhs); -+ type_max = cast_a_tree(unsigned_size_overflow_type, TYPE_MAX_VALUE(rhs_type)); -+ insert_check_size_overflow(stmt, GT_EXPR, gimple_get_lhs(ucast_stmt), type_max); -+ } else { -+ type_max = signed_cast(TYPE_MAX_VALUE(rhs_type)); -+ insert_check_size_overflow(stmt, GT_EXPR, cast_rhs, type_max); -+ -+ type_min = signed_cast(TYPE_MIN_VALUE(rhs_type)); -+ insert_check_size_overflow(stmt, LT_EXPR, cast_rhs, type_min); -+ } -+} -+ -+static tree change_assign_rhs(gimple stmt, tree orig_rhs, tree new_rhs) -+{ -+ gimple assign; -+ gimple_stmt_iterator gsi = gsi_for_stmt(stmt); -+ tree origtype = TREE_TYPE(orig_rhs); -+ -+ gcc_assert(gimple_code(stmt) == GIMPLE_ASSIGN); -+ -+ assign = build_cast_stmt(origtype, new_rhs, CREATE_NEW_VAR, gimple_location(stmt)); -+ gsi_insert_before(&gsi, assign, GSI_SAME_STMT); -+ update_stmt(assign); -+ return gimple_get_lhs(assign); -+} -+ -+static tree handle_const_assign(struct pointer_set_t *visited, bool *potentionally_overflowed, gimple def_stmt, tree var, tree orig_rhs, tree var_rhs, tree new_rhs1, tree new_rhs2, void (*gimple_assign_set_rhs)(gimple, tree)) -+{ -+ tree new_rhs; -+ -+ if (gimple_assign_rhs_code(def_stmt) == MIN_EXPR) -+ return dup_assign(visited, potentionally_overflowed, def_stmt, new_rhs1, new_rhs2, NULL_TREE); -+ -+ if (var_rhs == NULL_TREE) -+ return create_assign(visited, potentionally_overflowed, def_stmt, var, AFTER_STMT); -+ -+ new_rhs = change_assign_rhs(def_stmt, orig_rhs, var_rhs); -+ gimple_assign_set_rhs(def_stmt, new_rhs); -+ update_stmt(def_stmt); -+ -+ check_size_overflow(def_stmt, var_rhs, orig_rhs, potentionally_overflowed); -+ return create_assign(visited, potentionally_overflowed, def_stmt, var, AFTER_STMT); -+} -+ -+static tree handle_binary_ops(struct pointer_set_t *visited, bool *potentionally_overflowed, tree var) -+{ -+ tree rhs1, rhs2; -+ gimple def_stmt = get_def_stmt(var); -+ tree new_rhs1 = NULL_TREE; -+ tree new_rhs2 = NULL_TREE; -+ -+ rhs1 = gimple_assign_rhs1(def_stmt); -+ rhs2 = gimple_assign_rhs2(def_stmt); -+ -+ /* no DImode/TImode division in the 32/64 bit kernel */ -+ switch (gimple_assign_rhs_code(def_stmt)) { -+ case RDIV_EXPR: -+ case TRUNC_DIV_EXPR: -+ case CEIL_DIV_EXPR: -+ case FLOOR_DIV_EXPR: -+ case ROUND_DIV_EXPR: -+ case TRUNC_MOD_EXPR: -+ case CEIL_MOD_EXPR: -+ case FLOOR_MOD_EXPR: -+ case ROUND_MOD_EXPR: -+ case EXACT_DIV_EXPR: -+ case POINTER_PLUS_EXPR: -+ case BIT_AND_EXPR: -+ return create_assign(visited, potentionally_overflowed, def_stmt, var, AFTER_STMT); -+ default: -+ break; -+ } -+ -+ *potentionally_overflowed = true; -+ -+ if (TREE_CODE(rhs1) == SSA_NAME) -+ new_rhs1 = expand(visited, potentionally_overflowed, rhs1); -+ if (TREE_CODE(rhs2) == SSA_NAME) -+ new_rhs2 = expand(visited, potentionally_overflowed, rhs2); -+ -+ if (is_gimple_constant(rhs2)) -+ return handle_const_assign(visited, potentionally_overflowed, def_stmt, var, rhs1, new_rhs1, new_rhs1, signed_cast(rhs2), &gimple_assign_set_rhs1); -+ -+ if (is_gimple_constant(rhs1)) -+ return handle_const_assign(visited, potentionally_overflowed, def_stmt, var, rhs2, new_rhs2, signed_cast(rhs1), new_rhs2, &gimple_assign_set_rhs2); -+ -+ return dup_assign(visited, potentionally_overflowed, def_stmt, new_rhs1, new_rhs2, NULL_TREE); -+} -+ -+#if BUILDING_GCC_VERSION >= 4007 -+static tree get_new_rhs(struct pointer_set_t *visited, bool *potentionally_overflowed, tree rhs) -+{ -+ if (is_gimple_constant(rhs)) -+ return signed_cast(rhs); -+ if (TREE_CODE(rhs) != SSA_NAME) -+ return NULL_TREE; -+ return expand(visited, potentionally_overflowed, rhs); -+} -+ -+static tree handle_ternary_ops(struct pointer_set_t *visited, bool *potentionally_overflowed, tree var) -+{ -+ tree rhs1, rhs2, rhs3, new_rhs1, new_rhs2, new_rhs3; -+ gimple def_stmt = get_def_stmt(var); -+ -+ *potentionally_overflowed = true; -+ -+ rhs1 = gimple_assign_rhs1(def_stmt); -+ rhs2 = gimple_assign_rhs2(def_stmt); -+ rhs3 = gimple_assign_rhs3(def_stmt); -+ new_rhs1 = get_new_rhs(visited, potentionally_overflowed, rhs1); -+ new_rhs2 = get_new_rhs(visited, potentionally_overflowed, rhs2); -+ new_rhs3 = get_new_rhs(visited, potentionally_overflowed, rhs3); -+ -+ if (new_rhs1 == NULL_TREE && new_rhs2 != NULL_TREE && new_rhs3 != NULL_TREE) -+ return dup_assign(visited, potentionally_overflowed, def_stmt, new_rhs1, new_rhs2, new_rhs3); -+ error("handle_ternary_ops: unknown rhs"); -+ gcc_unreachable(); -+} -+#endif -+ -+static void set_size_overflow_type(tree node) -+{ -+ switch (TYPE_MODE(TREE_TYPE(node))) { -+ case SImode: -+ signed_size_overflow_type = intDI_type_node; -+ unsigned_size_overflow_type = unsigned_intDI_type_node; -+ break; -+ case DImode: -+ if (LONG_TYPE_SIZE == GET_MODE_BITSIZE(SImode)) { -+ signed_size_overflow_type = intDI_type_node; -+ unsigned_size_overflow_type = unsigned_intDI_type_node; -+ } else { -+ signed_size_overflow_type = intTI_type_node; -+ unsigned_size_overflow_type = unsigned_intTI_type_node; -+ } -+ break; -+ default: -+ error("set_size_overflow_type: unsupported gcc configuration."); -+ gcc_unreachable(); -+ } -+} -+ -+static tree expand_visited(gimple def_stmt) -+{ -+ gimple tmp; -+ gimple_stmt_iterator gsi = gsi_for_stmt(def_stmt); -+ -+ gsi_next(&gsi); -+ tmp = gsi_stmt(gsi); -+ switch (gimple_code(tmp)) { -+ case GIMPLE_ASSIGN: -+ return gimple_get_lhs(tmp); -+ case GIMPLE_PHI: -+ return gimple_phi_result(tmp); -+ case GIMPLE_CALL: -+ return gimple_call_lhs(tmp); -+ default: -+ return NULL_TREE; -+ } -+} -+ -+static tree expand(struct pointer_set_t *visited, bool *potentionally_overflowed, tree var) -+{ -+ gimple def_stmt; -+ enum tree_code code = TREE_CODE(TREE_TYPE(var)); -+ -+ if (is_gimple_constant(var)) -+ return NULL_TREE; -+ -+ if (TREE_CODE(var) == ADDR_EXPR) -+ return NULL_TREE; -+ -+ gcc_assert(code == INTEGER_TYPE || code == POINTER_TYPE || code == BOOLEAN_TYPE || code == ENUMERAL_TYPE); -+ if (code != INTEGER_TYPE) -+ return NULL_TREE; -+ -+ if (SSA_NAME_IS_DEFAULT_DEF(var)) { -+ check_missing_attribute(var); -+ return NULL_TREE; -+ } -+ -+ def_stmt = get_def_stmt(var); -+ -+ if (!def_stmt) -+ return NULL_TREE; -+ -+ if (pointer_set_contains(visited, def_stmt)) -+ return expand_visited(def_stmt); -+ -+ switch (gimple_code(def_stmt)) { -+ case GIMPLE_NOP: -+ check_missing_attribute(var); -+ return NULL_TREE; -+ case GIMPLE_PHI: -+ return build_new_phi(visited, potentionally_overflowed, def_stmt); -+ case GIMPLE_CALL: -+ case GIMPLE_ASM: -+ return create_assign(visited, potentionally_overflowed, def_stmt, var, AFTER_STMT); -+ case GIMPLE_ASSIGN: -+ switch (gimple_num_ops(def_stmt)) { -+ case 2: -+ return handle_unary_ops(visited, potentionally_overflowed, var); -+ case 3: -+ return handle_binary_ops(visited, potentionally_overflowed, var); -+#if BUILDING_GCC_VERSION >= 4007 -+ case 4: -+ return handle_ternary_ops(visited, potentionally_overflowed, var); -+#endif -+ } -+ default: -+ debug_gimple_stmt(def_stmt); -+ error("expand: unknown gimple code"); -+ gcc_unreachable(); -+ } -+} -+ -+static void change_function_arg(gimple stmt, tree origarg, unsigned int argnum, tree newarg) -+{ -+ gimple assign; -+ gimple_stmt_iterator gsi = gsi_for_stmt(stmt); -+ tree origtype = TREE_TYPE(origarg); -+ -+ gcc_assert(gimple_code(stmt) == GIMPLE_CALL); -+ -+ assign = build_cast_stmt(origtype, newarg, CREATE_NEW_VAR, gimple_location(stmt)); -+ gsi_insert_before(&gsi, assign, GSI_SAME_STMT); -+ update_stmt(assign); -+ -+ gimple_call_set_arg(stmt, argnum, gimple_get_lhs(assign)); -+ update_stmt(stmt); -+} -+ -+static tree get_function_arg(unsigned int argnum, gimple stmt, tree fndecl) -+{ -+ const char *origid; -+ tree arg, origarg; -+ -+ if (!DECL_ABSTRACT_ORIGIN(fndecl)) { -+ gcc_assert(gimple_call_num_args(stmt) > argnum); -+ return gimple_call_arg(stmt, argnum); -+ } -+ -+ origarg = DECL_ARGUMENTS(DECL_ABSTRACT_ORIGIN(fndecl)); -+ while (origarg && argnum) { -+ argnum--; -+ origarg = TREE_CHAIN(origarg); -+ } -+ -+ gcc_assert(argnum == 0); -+ -+ gcc_assert(origarg != NULL_TREE); -+ origid = NAME(origarg); -+ for (arg = DECL_ARGUMENTS(fndecl); arg; arg = TREE_CHAIN(arg)) { -+ if (!strcmp(origid, NAME(arg))) -+ return arg; -+ } -+ return NULL_TREE; -+} -+ -+static void handle_function_arg(gimple stmt, tree fndecl, unsigned int argnum) -+{ -+ struct pointer_set_t *visited; -+ tree arg, newarg; -+ bool potentionally_overflowed; -+ -+ arg = get_function_arg(argnum, stmt, fndecl); -+ if (arg == NULL_TREE) -+ return; -+ -+ if (is_gimple_constant(arg)) -+ return; -+ if (TREE_CODE(arg) != SSA_NAME) -+ return; -+ -+ check_arg_type(arg); -+ -+ set_size_overflow_type(arg); -+ -+ visited = pointer_set_create(); -+ potentionally_overflowed = false; -+ newarg = expand(visited, &potentionally_overflowed, arg); -+ pointer_set_destroy(visited); -+ -+ if (newarg == NULL_TREE || !potentionally_overflowed) -+ return; -+ -+ change_function_arg(stmt, arg, argnum, newarg); -+ -+ check_size_overflow(stmt, newarg, arg, &potentionally_overflowed); -+} -+ -+static void handle_function_by_attribute(gimple stmt, tree attr, tree fndecl) -+{ -+ tree p = TREE_VALUE(attr); -+ do { -+ handle_function_arg(stmt, fndecl, TREE_INT_CST_LOW(TREE_VALUE(p))-1); -+ p = TREE_CHAIN(p); -+ } while (p); -+} -+ -+static void handle_function_by_hash(gimple stmt, tree fndecl) -+{ -+ tree orig_fndecl; -+ unsigned int num; -+ struct size_overflow_hash *hash; -+ -+ orig_fndecl = get_original_function_decl(fndecl); -+ hash = get_function_hash(orig_fndecl); -+ if (!hash) -+ return; -+ -+ for (num = 1; num <= MAX_PARAM; num++) -+ if (hash->param & (1U << num)) -+ handle_function_arg(stmt, fndecl, num - 1); -+} -+ -+static unsigned int handle_function(void) -+{ -+ basic_block bb = ENTRY_BLOCK_PTR->next_bb; -+ int saved_last_basic_block = last_basic_block; -+ -+ do { -+ gimple_stmt_iterator gsi; -+ basic_block next = bb->next_bb; -+ -+ for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) { -+ tree fndecl, attr; -+ gimple stmt = gsi_stmt(gsi); -+ -+ if (!(is_gimple_call(stmt))) -+ continue; -+ fndecl = gimple_call_fndecl(stmt); -+ if (fndecl == NULL_TREE) -+ continue; -+ if (gimple_call_num_args(stmt) == 0) -+ continue; -+ attr = lookup_attribute("size_overflow", TYPE_ATTRIBUTES(TREE_TYPE(fndecl))); -+ if (!attr || !TREE_VALUE(attr)) -+ handle_function_by_hash(stmt, fndecl); -+ else -+ handle_function_by_attribute(stmt, attr, fndecl); -+ gsi = gsi_for_stmt(stmt); -+ } -+ bb = next; -+ } while (bb && bb->index <= saved_last_basic_block); -+ return 0; -+} -+ -+static struct gimple_opt_pass size_overflow_pass = { -+ .pass = { -+ .type = GIMPLE_PASS, -+ .name = "size_overflow", -+ .gate = NULL, -+ .execute = handle_function, -+ .sub = NULL, -+ .next = NULL, -+ .static_pass_number = 0, -+ .tv_id = TV_NONE, -+ .properties_required = PROP_cfg | PROP_referenced_vars, -+ .properties_provided = 0, -+ .properties_destroyed = 0, -+ .todo_flags_start = 0, -+ .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_remove_unused_locals | TODO_update_ssa_no_phi | TODO_cleanup_cfg | TODO_ggc_collect | TODO_verify_flow -+ } -+}; -+ -+static void start_unit_callback(void __unused *gcc_data, void __unused *user_data) -+{ -+ tree fntype; -+ -+ const_char_ptr_type_node = build_pointer_type(build_type_variant(char_type_node, 1, 0)); -+ -+ // void report_size_overflow(const char *loc_file, unsigned int loc_line, const char *current_func) -+ fntype = build_function_type_list(void_type_node, -+ const_char_ptr_type_node, -+ unsigned_type_node, -+ const_char_ptr_type_node, -+ NULL_TREE); -+ report_size_overflow_decl = build_fn_decl("report_size_overflow", fntype); -+ -+ DECL_ASSEMBLER_NAME(report_size_overflow_decl); -+ TREE_PUBLIC(report_size_overflow_decl) = 1; -+ DECL_EXTERNAL(report_size_overflow_decl) = 1; -+ DECL_ARTIFICIAL(report_size_overflow_decl) = 1; -+} -+ -+int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version) -+{ -+ int i; -+ const char * const plugin_name = plugin_info->base_name; -+ const int argc = plugin_info->argc; -+ const struct plugin_argument * const argv = plugin_info->argv; -+ bool enable = true; -+ -+ struct register_pass_info size_overflow_pass_info = { -+ .pass = &size_overflow_pass.pass, -+ .reference_pass_name = "ssa", -+ .ref_pass_instance_number = 1, -+ .pos_op = PASS_POS_INSERT_AFTER -+ }; -+ -+ if (!plugin_default_version_check(version, &gcc_version)) { -+ error(G_("incompatible gcc/plugin versions")); -+ return 1; -+ } -+ -+ for (i = 0; i < argc; ++i) { -+ if (!strcmp(argv[i].key, "no-size-overflow")) { -+ enable = false; -+ continue; -+ } -+ error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key); -+ } -+ -+ register_callback(plugin_name, PLUGIN_INFO, NULL, &size_overflow_plugin_info); -+ if (enable) { -+ register_callback ("start_unit", PLUGIN_START_UNIT, &start_unit_callback, NULL); -+ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &size_overflow_pass_info); -+ } -+ register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL); -+ -+ return 0; -+} -diff --git a/tools/gcc/stackleak_plugin.c b/tools/gcc/stackleak_plugin.c -new file mode 100644 -index 0000000..b87ec9d ---- /dev/null -+++ b/tools/gcc/stackleak_plugin.c -@@ -0,0 +1,313 @@ -+/* -+ * Copyright 2011 by the PaX Team <pageexec(a)freemail.hu> -+ * Licensed under the GPL v2 -+ * -+ * Note: the choice of the license means that the compilation process is -+ * NOT 'eligible' as defined by gcc's library exception to the GPL v3, -+ * but for the kernel it doesn't matter since it doesn't link against -+ * any of the gcc libraries -+ * -+ * gcc plugin to help implement various PaX features -+ * -+ * - track lowest stack pointer -+ * -+ * TODO: -+ * - initialize all local variables -+ * -+ * BUGS: -+ * - none known -+ */ -+#include "gcc-plugin.h" -+#include "config.h" -+#include "system.h" -+#include "coretypes.h" -+#include "tree.h" -+#include "tree-pass.h" -+#include "flags.h" -+#include "intl.h" -+#include "toplev.h" -+#include "plugin.h" -+//#include "expr.h" where are you... -+#include "diagnostic.h" -+#include "plugin-version.h" -+#include "tm.h" -+#include "function.h" -+#include "basic-block.h" -+#include "gimple.h" -+#include "rtl.h" -+#include "emit-rtl.h" -+ -+extern void print_gimple_stmt(FILE *, gimple, int, int); -+ -+int plugin_is_GPL_compatible; -+ -+static int track_frame_size = -1; -+static const char track_function[] = "pax_track_stack"; -+static const char check_function[] = "pax_check_alloca"; -+static bool init_locals; -+ -+static struct plugin_info stackleak_plugin_info = { -+ .version = "201203140940", -+ .help = "track-lowest-sp=nn\ttrack sp in functions whose frame size is at least nn bytes\n" -+// "initialize-locals\t\tforcibly initialize all stack frames\n" -+}; -+ -+static bool gate_stackleak_track_stack(void); -+static unsigned int execute_stackleak_tree_instrument(void); -+static unsigned int execute_stackleak_final(void); -+ -+static struct gimple_opt_pass stackleak_tree_instrument_pass = { -+ .pass = { -+ .type = GIMPLE_PASS, -+ .name = "stackleak_tree_instrument", -+ .gate = gate_stackleak_track_stack, -+ .execute = execute_stackleak_tree_instrument, -+ .sub = NULL, -+ .next = NULL, -+ .static_pass_number = 0, -+ .tv_id = TV_NONE, -+ .properties_required = PROP_gimple_leh | PROP_cfg, -+ .properties_provided = 0, -+ .properties_destroyed = 0, -+ .todo_flags_start = 0, //TODO_verify_ssa | TODO_verify_flow | TODO_verify_stmts, -+ .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_update_ssa -+ } -+}; -+ -+static struct rtl_opt_pass stackleak_final_rtl_opt_pass = { -+ .pass = { -+ .type = RTL_PASS, -+ .name = "stackleak_final", -+ .gate = gate_stackleak_track_stack, -+ .execute = execute_stackleak_final, -+ .sub = NULL, -+ .next = NULL, -+ .static_pass_number = 0, -+ .tv_id = TV_NONE, -+ .properties_required = 0, -+ .properties_provided = 0, -+ .properties_destroyed = 0, -+ .todo_flags_start = 0, -+ .todo_flags_finish = TODO_dump_func -+ } -+}; -+ -+static bool gate_stackleak_track_stack(void) -+{ -+ return track_frame_size >= 0; -+} -+ -+static void stackleak_check_alloca(gimple_stmt_iterator *gsi) -+{ -+ gimple check_alloca; -+ tree fntype, fndecl, alloca_size; -+ -+ fntype = build_function_type_list(void_type_node, long_unsigned_type_node, NULL_TREE); -+ fndecl = build_fn_decl(check_function, fntype); -+ DECL_ASSEMBLER_NAME(fndecl); // for LTO -+ -+ // insert call to void pax_check_alloca(unsigned long size) -+ alloca_size = gimple_call_arg(gsi_stmt(*gsi), 0); -+ check_alloca = gimple_build_call(fndecl, 1, alloca_size); -+ gsi_insert_before(gsi, check_alloca, GSI_SAME_STMT); -+} -+ -+static void stackleak_add_instrumentation(gimple_stmt_iterator *gsi) -+{ -+ gimple track_stack; -+ tree fntype, fndecl; -+ -+ fntype = build_function_type_list(void_type_node, NULL_TREE); -+ fndecl = build_fn_decl(track_function, fntype); -+ DECL_ASSEMBLER_NAME(fndecl); // for LTO -+ -+ // insert call to void pax_track_stack(void) -+ track_stack = gimple_build_call(fndecl, 0); -+ gsi_insert_after(gsi, track_stack, GSI_CONTINUE_LINKING); -+} -+ -+#if BUILDING_GCC_VERSION == 4005 -+static bool gimple_call_builtin_p(gimple stmt, enum built_in_function code) -+{ -+ tree fndecl; -+ -+ if (!is_gimple_call(stmt)) -+ return false; -+ fndecl = gimple_call_fndecl(stmt); -+ if (!fndecl) -+ return false; -+ if (DECL_BUILT_IN_CLASS(fndecl) != BUILT_IN_NORMAL) -+ return false; -+// print_node(stderr, "pax", fndecl, 4); -+ return DECL_FUNCTION_CODE(fndecl) == code; -+} -+#endif -+ -+static bool is_alloca(gimple stmt) -+{ -+ if (gimple_call_builtin_p(stmt, BUILT_IN_ALLOCA)) -+ return true; -+ -+#if BUILDING_GCC_VERSION >= 4007 -+ if (gimple_call_builtin_p(stmt, BUILT_IN_ALLOCA_WITH_ALIGN)) -+ return true; -+#endif -+ -+ return false; -+} -+ -+static unsigned int execute_stackleak_tree_instrument(void) -+{ -+ basic_block bb, entry_bb; -+ bool prologue_instrumented = false, is_leaf = true; -+ -+ entry_bb = ENTRY_BLOCK_PTR_FOR_FUNCTION(cfun)->next_bb; -+ -+ // 1. loop through BBs and GIMPLE statements -+ FOR_EACH_BB(bb) { -+ gimple_stmt_iterator gsi; -+ -+ for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) { -+ gimple stmt; -+ -+ stmt = gsi_stmt(gsi); -+ -+ if (is_gimple_call(stmt)) -+ is_leaf = false; -+ -+ // gimple match: align 8 built-in BUILT_IN_NORMAL:BUILT_IN_ALLOCA attributes <tree_list 0xb7576450> -+ if (!is_alloca(stmt)) -+ continue; -+ -+ // 2. insert stack overflow check before each __builtin_alloca call -+ stackleak_check_alloca(&gsi); -+ -+ // 3. insert track call after each __builtin_alloca call -+ stackleak_add_instrumentation(&gsi); -+ if (bb == entry_bb) -+ prologue_instrumented = true; -+ } -+ } -+ -+ // special cases for some bad linux code: taking the address of static inline functions will materialize them -+ // but we mustn't instrument some of them as the resulting stack alignment required by the function call ABI -+ // will break other assumptions regarding the expected (but not otherwise enforced) register clobbering ABI. -+ // case in point: native_save_fl on amd64 when optimized for size clobbers rdx if it were instrumented here. -+ if (is_leaf && !TREE_PUBLIC(current_function_decl) && DECL_DECLARED_INLINE_P(current_function_decl)) -+ return 0; -+ if (is_leaf && !strncmp(IDENTIFIER_POINTER(DECL_NAME(current_function_decl)), "_paravirt_", 10)) -+ return 0; -+ -+ // 4. insert track call at the beginning -+ if (!prologue_instrumented) { -+ gimple_stmt_iterator gsi; -+ -+ bb = split_block_after_labels(ENTRY_BLOCK_PTR)->dest; -+ if (dom_info_available_p(CDI_DOMINATORS)) -+ set_immediate_dominator(CDI_DOMINATORS, bb, ENTRY_BLOCK_PTR); -+ gsi = gsi_start_bb(bb); -+ stackleak_add_instrumentation(&gsi); -+ } -+ -+ return 0; -+} -+ -+static unsigned int execute_stackleak_final(void) -+{ -+ rtx insn; -+ -+ if (cfun->calls_alloca) -+ return 0; -+ -+ // keep calls only if function frame is big enough -+ if (get_frame_size() >= track_frame_size) -+ return 0; -+ -+ // 1. find pax_track_stack calls -+ for (insn = get_insns(); insn; insn = NEXT_INSN(insn)) { -+ // rtl match: (call_insn 8 7 9 3 (call (mem (symbol_ref ("pax_track_stack") [flags 0x41] <function_decl 0xb7470e80 pax_track_stack>) [0 S1 A8]) (4)) -1 (nil) (nil)) -+ rtx body; -+ -+ if (!CALL_P(insn)) -+ continue; -+ body = PATTERN(insn); -+ if (GET_CODE(body) != CALL) -+ continue; -+ body = XEXP(body, 0); -+ if (GET_CODE(body) != MEM) -+ continue; -+ body = XEXP(body, 0); -+ if (GET_CODE(body) != SYMBOL_REF) -+ continue; -+ if (strcmp(XSTR(body, 0), track_function)) -+ continue; -+// warning(0, "track_frame_size: %d %ld %d", cfun->calls_alloca, get_frame_size(), track_frame_size); -+ // 2. delete call -+ insn = delete_insn_and_edges(insn); -+#if BUILDING_GCC_VERSION >= 4007 -+ if (GET_CODE(insn) == NOTE && NOTE_KIND(insn) == NOTE_INSN_CALL_ARG_LOCATION) -+ insn = delete_insn_and_edges(insn); -+#endif -+ } -+ -+// print_simple_rtl(stderr, get_insns()); -+// print_rtl(stderr, get_insns()); -+// warning(0, "track_frame_size: %d %ld %d", cfun->calls_alloca, get_frame_size(), track_frame_size); -+ -+ return 0; -+} -+ -+int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version) -+{ -+ const char * const plugin_name = plugin_info->base_name; -+ const int argc = plugin_info->argc; -+ const struct plugin_argument * const argv = plugin_info->argv; -+ int i; -+ struct register_pass_info stackleak_tree_instrument_pass_info = { -+ .pass = &stackleak_tree_instrument_pass.pass, -+// .reference_pass_name = "tree_profile", -+ .reference_pass_name = "optimized", -+ .ref_pass_instance_number = 0, -+ .pos_op = PASS_POS_INSERT_BEFORE -+ }; -+ struct register_pass_info stackleak_final_pass_info = { -+ .pass = &stackleak_final_rtl_opt_pass.pass, -+ .reference_pass_name = "final", -+ .ref_pass_instance_number = 0, -+ .pos_op = PASS_POS_INSERT_BEFORE -+ }; -+ -+ if (!plugin_default_version_check(version, &gcc_version)) { -+ error(G_("incompatible gcc/plugin versions")); -+ return 1; -+ } -+ -+ register_callback(plugin_name, PLUGIN_INFO, NULL, &stackleak_plugin_info); -+ -+ for (i = 0; i < argc; ++i) { -+ if (!strcmp(argv[i].key, "track-lowest-sp")) { -+ if (!argv[i].value) { -+ error(G_("no value supplied for option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key); -+ continue; -+ } -+ track_frame_size = atoi(argv[i].value); -+ if (argv[i].value[0] < '0' || argv[i].value[0] > '9' || track_frame_size < 0) -+ error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value); -+ continue; -+ } -+ if (!strcmp(argv[i].key, "initialize-locals")) { -+ if (argv[i].value) { -+ error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value); -+ continue; -+ } -+ init_locals = true; -+ continue; -+ } -+ error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key); -+ } -+ -+ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &stackleak_tree_instrument_pass_info); -+ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &stackleak_final_pass_info); -+ -+ return 0; -+} -diff --git a/tools/perf/util/include/asm/alternative-asm.h b/tools/perf/util/include/asm/alternative-asm.h -index 6789d78..4afd019 100644 ---- a/tools/perf/util/include/asm/alternative-asm.h -+++ b/tools/perf/util/include/asm/alternative-asm.h -@@ -5,4 +5,7 @@ - - #define altinstruction_entry # - -+ .macro pax_force_retaddr rip=0, reload=0 -+ .endm -+ - #endif -diff --git a/usr/gen_init_cpio.c b/usr/gen_init_cpio.c -index af0f22f..9a7d479 100644 ---- a/usr/gen_init_cpio.c -+++ b/usr/gen_init_cpio.c -@@ -303,7 +303,7 @@ static int cpio_mkfile(const char *name, const char *location, - int retval; - int rc = -1; - int namesize; -- int i; -+ unsigned int i; - - mode |= S_IFREG; - -@@ -392,9 +392,10 @@ static char *cpio_replace_env(char *new_location) - *env_var = *expanded = '\0'; - strncat(env_var, start + 2, end - start - 2); - strncat(expanded, new_location, start - new_location); -- strncat(expanded, getenv(env_var), PATH_MAX); -- strncat(expanded, end + 1, PATH_MAX); -+ strncat(expanded, getenv(env_var), PATH_MAX - strlen(expanded)); -+ strncat(expanded, end + 1, PATH_MAX - strlen(expanded)); - strncpy(new_location, expanded, PATH_MAX); -+ new_location[PATH_MAX] = 0; - } else - break; - } -diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c -index 9739b53..6d457e3 100644 ---- a/virt/kvm/kvm_main.c -+++ b/virt/kvm/kvm_main.c -@@ -75,7 +75,7 @@ LIST_HEAD(vm_list); - - static cpumask_var_t cpus_hardware_enabled; - static int kvm_usage_count = 0; --static atomic_t hardware_enable_failed; -+static atomic_unchecked_t hardware_enable_failed; - - struct kmem_cache *kvm_vcpu_cache; - EXPORT_SYMBOL_GPL(kvm_vcpu_cache); -@@ -2247,7 +2247,7 @@ static void hardware_enable_nolock(void *junk) - - if (r) { - cpumask_clear_cpu(cpu, cpus_hardware_enabled); -- atomic_inc(&hardware_enable_failed); -+ atomic_inc_unchecked(&hardware_enable_failed); - printk(KERN_INFO "kvm: enabling virtualization on " - "CPU%d failed\n", cpu); - } -@@ -2301,10 +2301,10 @@ static int hardware_enable_all(void) - - kvm_usage_count++; - if (kvm_usage_count == 1) { -- atomic_set(&hardware_enable_failed, 0); -+ atomic_set_unchecked(&hardware_enable_failed, 0); - on_each_cpu(hardware_enable_nolock, NULL, 1); - -- if (atomic_read(&hardware_enable_failed)) { -+ if (atomic_read_unchecked(&hardware_enable_failed)) { - hardware_disable_all_nolock(); - r = -EBUSY; - } -@@ -2667,7 +2667,7 @@ static void kvm_sched_out(struct preempt_notifier *pn, - kvm_arch_vcpu_put(vcpu); - } - --int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, -+int kvm_init(const void *opaque, unsigned vcpu_size, unsigned vcpu_align, - struct module *module) - { - int r; -@@ -2730,7 +2730,7 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, - if (!vcpu_align) - vcpu_align = __alignof__(struct kvm_vcpu); - kvm_vcpu_cache = kmem_cache_create("kvm_vcpu", vcpu_size, vcpu_align, -- 0, NULL); -+ SLAB_USERCOPY, NULL); - if (!kvm_vcpu_cache) { - r = -ENOMEM; - goto out_free_3; -@@ -2740,9 +2740,11 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, - if (r) - goto out_free; - -- kvm_chardev_ops.owner = module; -- kvm_vm_fops.owner = module; -- kvm_vcpu_fops.owner = module; -+ pax_open_kernel(); -+ *(void **)&kvm_chardev_ops.owner = module; -+ *(void **)&kvm_vm_fops.owner = module; -+ *(void **)&kvm_vcpu_fops.owner = module; -+ pax_close_kernel(); - - r = misc_register(&kvm_dev); - if (r) { diff --git a/kernel/patches/grsecurity-2.9.1-3.4.6-201207281946.patch b/kernel/patches/grsecurity-2.9.1-3.4.6-201207281946.patch new file mode 100644 index 0000000..357f472 --- /dev/null +++ b/kernel/patches/grsecurity-2.9.1-3.4.6-201207281946.patch @@ -0,0 +1,86288 @@ +diff --git a/Documentation/dontdiff b/Documentation/dontdiff +index b4a898f..781c7ad 100644 +--- a/Documentation/dontdiff ++++ b/Documentation/dontdiff +@@ -2,9 +2,11 @@ + *.aux + *.bin + *.bz2 ++*.c.[012]*.* + *.cis + *.cpio + *.csp ++*.dbg + *.dsp + *.dvi + *.elf +@@ -14,6 +16,7 @@ + *.gcov + *.gen.S + *.gif ++*.gmo + *.grep + *.grp + *.gz +@@ -48,14 +51,17 @@ + *.tab.h + *.tex + *.ver ++*.vim + *.xml + *.xz + *_MODULES ++*_reg_safe.h + *_vga16.c + *~ + \#*# + *.9 +-.* ++.[^g]* ++.gen* + .*.d + .mm + 53c700_d.h +@@ -69,6 +75,7 @@ Image + Module.markers + Module.symvers + PENDING ++PERF* + SCCS + System.map* + TAGS +@@ -80,6 +87,7 @@ aic7*seq.h* + aicasm + aicdb.h* + altivec*.c ++ashldi3.S + asm-offsets.h + asm_offsets.h + autoconf.h* +@@ -92,19 +100,24 @@ bounds.h + bsetup + btfixupprep + build ++builtin-policy.h + bvmlinux + bzImage* + capability_names.h + capflags.c + classlist.h* ++clut_vga16.c ++common-cmds.h + comp*.log + compile.h* + conf + config + config-* + config_data.h* ++config.c + config.mak + config.mak.autogen ++config.tmp + conmakehash + consolemap_deftbl.c* + cpustr.h +@@ -115,9 +128,11 @@ devlist.h* + dnotify_test + docproc + dslm ++dtc-lexer.lex.c + elf2ecoff + elfconfig.h* + evergreen_reg_safe.h ++exception_policy.conf + fixdep + flask.h + fore200e_mkfirm +@@ -125,12 +140,15 @@ fore200e_pca_fw.c* + gconf + gconf.glade.h + gen-devlist ++gen-kdb_cmds.c + gen_crc32table + gen_init_cpio + generated + genheaders + genksyms + *_gray256.c ++hash ++hid-example + hpet_example + hugepage-mmap + hugepage-shm +@@ -145,7 +163,7 @@ int32.c + int4.c + int8.c + kallsyms +-kconfig ++kern_constants.h + keywords.c + ksym.c* + ksym.h* +@@ -153,7 +171,7 @@ kxgettext + lkc_defs.h + lex.c + lex.*.c +-linux ++lib1funcs.S + logo_*.c + logo_*_clut224.c + logo_*_mono.c +@@ -164,14 +182,15 @@ machtypes.h + map + map_hugetlb + maui_boot.h +-media + mconf ++mdp + miboot* + mk_elfconfig + mkboot + mkbugboot + mkcpustr + mkdep ++mkpiggy + mkprep + mkregtable + mktables +@@ -188,6 +207,7 @@ oui.c* + page-types + parse.c + parse.h ++parse-events* + patches* + pca200e.bin + pca200e_ecd.bin2 +@@ -197,6 +217,7 @@ perf-archive + piggyback + piggy.gzip + piggy.S ++pmu-* + pnmtologo + ppc_defs.h* + pss_boot.h +@@ -207,6 +228,7 @@ r300_reg_safe.h + r420_reg_safe.h + r600_reg_safe.h + recordmcount ++regdb.c + relocs + rlim_names.h + rn50_reg_safe.h +@@ -216,7 +238,9 @@ series + setup + setup.bin + setup.elf ++size_overflow_hash.h + sImage ++slabinfo + sm_tbl* + split-include + syscalltab.h +@@ -227,6 +251,7 @@ tftpboot.img + timeconst.h + times.h* + trix_boot.h ++user_constants.h + utsrelease.h* + vdso-syms.lds + vdso.lds +@@ -238,13 +263,17 @@ vdso32.lds + vdso32.so.dbg + vdso64.lds + vdso64.so.dbg ++vdsox32.lds ++vdsox32-syms.lds + version.h* + vmImage + vmlinux + vmlinux-* + vmlinux.aout + vmlinux.bin.all ++vmlinux.bin.bz2 + vmlinux.lds ++vmlinux.relocs + vmlinuz + voffset.h + vsyscall.lds +@@ -252,9 +281,11 @@ vsyscall_32.lds + wanxlfw.inc + uImage + unifdef ++utsrelease.h + wakeup.bin + wakeup.elf + wakeup.lds + zImage* + zconf.hash.c ++zconf.lex.c + zoffset.h +diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt +index c1601e5..08557ce 100644 +--- a/Documentation/kernel-parameters.txt ++++ b/Documentation/kernel-parameters.txt +@@ -2021,6 +2021,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted. + the specified number of seconds. This is to be used if + your oopses keep scrolling off the screen. + ++ pax_nouderef [X86] disables UDEREF. Most likely needed under certain ++ virtualization environments that don't cope well with the ++ expand down segment used by UDEREF on X86-32 or the frequent ++ page table updates on X86-64. ++ ++ pax_softmode= 0/1 to disable/enable PaX softmode on boot already. ++ + pcbit= [HW,ISDN] + + pcd. [PARIDE] +diff --git a/Makefile b/Makefile +index 5d0edcb..f69ee4c 100644 +--- a/Makefile ++++ b/Makefile +@@ -245,8 +245,9 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ + + HOSTCC = gcc + HOSTCXX = g++ +-HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer +-HOSTCXXFLAGS = -O2 ++HOSTCFLAGS = -Wall -W -Wmissing-prototypes -Wstrict-prototypes -Wno-unused-parameter -Wno-missing-field-initializers -O2 -fomit-frame-pointer -fno-delete-null-pointer-checks ++HOSTCLFAGS += $(call cc-option, -Wno-empty-body) ++HOSTCXXFLAGS = -O2 -Wall -W -fno-delete-null-pointer-checks + + # Decide whether to build built-in, modular, or both. + # Normally, just do built-in. +@@ -407,8 +408,8 @@ export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exc + # Rules shared between *config targets and build targets + + # Basic helpers built in scripts/ +-PHONY += scripts_basic +-scripts_basic: ++PHONY += scripts_basic gcc-plugins ++scripts_basic: gcc-plugins + $(Q)$(MAKE) $(build)=scripts/basic + $(Q)rm -f .tmp_quiet_recordmcount + +@@ -564,6 +565,60 @@ else + KBUILD_CFLAGS += -O2 + endif + ++ifndef DISABLE_PAX_PLUGINS ++PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(HOSTCC)" "$(HOSTCXX)" "$(CC)") ++ifneq ($(PLUGINCC),) ++ifndef DISABLE_PAX_CONSTIFY_PLUGIN ++ifndef CONFIG_UML ++CONSTIFY_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/constify_plugin.so -DCONSTIFY_PLUGIN ++endif ++endif ++ifdef CONFIG_PAX_MEMORY_STACKLEAK ++STACKLEAK_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/stackleak_plugin.so -DSTACKLEAK_PLUGIN ++STACKLEAK_PLUGIN_CFLAGS += -fplugin-arg-stackleak_plugin-track-lowest-sp=100 ++endif ++ifdef CONFIG_KALLOCSTAT_PLUGIN ++KALLOCSTAT_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/kallocstat_plugin.so ++endif ++ifdef CONFIG_PAX_KERNEXEC_PLUGIN ++KERNEXEC_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/kernexec_plugin.so ++KERNEXEC_PLUGIN_CFLAGS += -fplugin-arg-kernexec_plugin-method=$(CONFIG_PAX_KERNEXEC_PLUGIN_METHOD) -DKERNEXEC_PLUGIN ++KERNEXEC_PLUGIN_AFLAGS := -DKERNEXEC_PLUGIN ++endif ++ifdef CONFIG_CHECKER_PLUGIN ++ifeq ($(call cc-ifversion, -ge, 0406, y), y) ++CHECKER_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/checker_plugin.so -DCHECKER_PLUGIN ++endif ++endif ++COLORIZE_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/colorize_plugin.so ++ifdef CONFIG_PAX_SIZE_OVERFLOW ++SIZE_OVERFLOW_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/size_overflow_plugin.so -DSIZE_OVERFLOW_PLUGIN ++endif ++ifdef CONFIG_PAX_LATENT_ENTROPY ++LATENT_ENTROPY_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/latent_entropy_plugin.so -DLATENT_ENTROPY_PLUGIN ++endif ++GCC_PLUGINS_CFLAGS := $(CONSTIFY_PLUGIN_CFLAGS) $(STACKLEAK_PLUGIN_CFLAGS) $(KALLOCSTAT_PLUGIN_CFLAGS) ++GCC_PLUGINS_CFLAGS += $(KERNEXEC_PLUGIN_CFLAGS) $(CHECKER_PLUGIN_CFLAGS) $(COLORIZE_PLUGIN_CFLAGS) ++GCC_PLUGINS_CFLAGS += $(SIZE_OVERFLOW_PLUGIN_CFLAGS) $(LATENT_ENTROPY_PLUGIN_CFLAGS) ++GCC_PLUGINS_AFLAGS := $(KERNEXEC_PLUGIN_AFLAGS) ++export PLUGINCC CONSTIFY_PLUGIN ++ifeq ($(KBUILD_EXTMOD),) ++gcc-plugins: ++ $(Q)$(MAKE) $(build)=tools/gcc ++else ++gcc-plugins: ; ++endif ++else ++gcc-plugins: ++ifeq ($(call cc-ifversion, -ge, 0405, y), y) ++ $(error Your gcc installation does not support plugins. If the necessary headers for plugin support are missing, they should be installed. On Debian, apt-get install gcc-<ver>-plugin-dev. If you choose to ignore this error and lessen the improvements provided by this patch, re-run make with the DISABLE_PAX_PLUGINS=y argument.)) ++else ++ $(Q)echo "warning, your gcc version does not support plugins, you should upgrade it to gcc 4.5 at least" ++endif ++ $(Q)echo "PAX_MEMORY_STACKLEAK and other features will be less secure" ++endif ++endif ++ + include $(srctree)/arch/$(SRCARCH)/Makefile + + ifneq ($(CONFIG_FRAME_WARN),0) +@@ -708,7 +763,7 @@ export mod_strip_cmd + + + ifeq ($(KBUILD_EXTMOD),) +-core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ ++core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ grsecurity/ + + vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ + $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ +@@ -932,6 +987,8 @@ vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE + + # The actual objects are generated when descending, + # make sure no implicit rule kicks in ++$(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) ++$(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) + $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; + + # Handle descending into subdirectories listed in $(vmlinux-dirs) +@@ -941,7 +998,7 @@ $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; + # Error messages still appears in the original language + + PHONY += $(vmlinux-dirs) +-$(vmlinux-dirs): prepare scripts ++$(vmlinux-dirs): gcc-plugins prepare scripts + $(Q)$(MAKE) $(build)=$@ + + # Store (new) KERNELRELASE string in include/config/kernel.release +@@ -985,6 +1042,7 @@ prepare0: archprepare FORCE + $(Q)$(MAKE) $(build)=. + + # All the preparing.. ++prepare: KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS)) + prepare: prepare0 + + # Generate some files +@@ -1092,6 +1150,8 @@ all: modules + # using awk while concatenating to the final file. + + PHONY += modules ++modules: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) ++modules: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) + modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin + $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order + @$(kecho) ' Building modules, stage 2.'; +@@ -1107,7 +1167,7 @@ modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) + + # Target to prepare building external modules + PHONY += modules_prepare +-modules_prepare: prepare scripts ++modules_prepare: gcc-plugins prepare scripts + + # Target to install modules + PHONY += modules_install +@@ -1166,7 +1226,7 @@ CLEAN_FILES += vmlinux System.map \ + MRPROPER_DIRS += include/config usr/include include/generated \ + arch/*/include/generated + MRPROPER_FILES += .config .config.old .version .old_version \ +- include/linux/version.h \ ++ include/linux/version.h tools/gcc/size_overflow_hash.h\ + Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS + + # clean - Delete most, but leave enough to build external modules +@@ -1204,6 +1264,7 @@ distclean: mrproper + $ -name '*.orig' -o -name '*.rej' -o -name '*~' \ + -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ + -o -name '.*.rej' \ ++ -o -name '.*.rej' -o -name '*.so' \ + -o -name '*%' -o -name '.*.cmd' -o -name 'core' $ \ + -type f -print | xargs rm -f + +@@ -1364,6 +1425,8 @@ PHONY += $(module-dirs) modules + $(module-dirs): crmodverdir $(objtree)/Module.symvers + $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) + ++modules: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) ++modules: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) + modules: $(module-dirs) + @$(kecho) ' Building modules, stage 2.'; + $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost +@@ -1490,17 +1553,21 @@ else + target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) + endif + +-%.s: %.c prepare scripts FORCE ++%.s: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) ++%.s: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) ++%.s: %.c gcc-plugins prepare scripts FORCE + $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) + %.i: %.c prepare scripts FORCE + $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) +-%.o: %.c prepare scripts FORCE ++%.o: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) ++%.o: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) ++%.o: %.c gcc-plugins prepare scripts FORCE + $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) + %.lst: %.c prepare scripts FORCE + $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) +-%.s: %.S prepare scripts FORCE ++%.s: %.S gcc-plugins prepare scripts FORCE + $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) +-%.o: %.S prepare scripts FORCE ++%.o: %.S gcc-plugins prepare scripts FORCE + $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) + %.symtypes: %.c prepare scripts FORCE + $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) +@@ -1510,11 +1577,15 @@ endif + $(cmd_crmodverdir) + $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ + $(build)=$(build-dir) +-%/: prepare scripts FORCE ++%/: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) ++%/: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) ++%/: gcc-plugins prepare scripts FORCE + $(cmd_crmodverdir) + $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ + $(build)=$(build-dir) +-%.ko: prepare scripts FORCE ++%.ko: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) ++%.ko: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS) ++%.ko: gcc-plugins prepare scripts FORCE + $(cmd_crmodverdir) + $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ + $(build)=$(build-dir) $(@:.ko=.o) +diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h +index 3bb7ffe..347a54c 100644 +--- a/arch/alpha/include/asm/atomic.h ++++ b/arch/alpha/include/asm/atomic.h +@@ -250,6 +250,16 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u) + #define atomic_dec(v) atomic_sub(1,(v)) + #define atomic64_dec(v) atomic64_sub(1,(v)) + ++#define atomic64_read_unchecked(v) atomic64_read(v) ++#define atomic64_set_unchecked(v, i) atomic64_set((v), (i)) ++#define atomic64_add_unchecked(a, v) atomic64_add((a), (v)) ++#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v)) ++#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v)) ++#define atomic64_inc_unchecked(v) atomic64_inc(v) ++#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v) ++#define atomic64_dec_unchecked(v) atomic64_dec(v) ++#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n)) ++ + #define smp_mb__before_atomic_dec() smp_mb() + #define smp_mb__after_atomic_dec() smp_mb() + #define smp_mb__before_atomic_inc() smp_mb() +diff --git a/arch/alpha/include/asm/cache.h b/arch/alpha/include/asm/cache.h +index ad368a9..fbe0f25 100644 +--- a/arch/alpha/include/asm/cache.h ++++ b/arch/alpha/include/asm/cache.h +@@ -4,19 +4,19 @@ + #ifndef __ARCH_ALPHA_CACHE_H + #define __ARCH_ALPHA_CACHE_H + ++#include <linux/const.h> + + /* Bytes per L1 (data) cache line. */ + #if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EV6) +-# define L1_CACHE_BYTES 64 + # define L1_CACHE_SHIFT 6 + #else + /* Both EV4 and EV5 are write-through, read-allocate, + direct-mapped, physical. + */ +-# define L1_CACHE_BYTES 32 + # define L1_CACHE_SHIFT 5 + #endif + ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + #define SMP_CACHE_BYTES L1_CACHE_BYTES + + #endif +diff --git a/arch/alpha/include/asm/elf.h b/arch/alpha/include/asm/elf.h +index 968d999..d36b2df 100644 +--- a/arch/alpha/include/asm/elf.h ++++ b/arch/alpha/include/asm/elf.h +@@ -91,6 +91,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; + + #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x1000000) + ++#ifdef CONFIG_PAX_ASLR ++#define PAX_ELF_ET_DYN_BASE (current->personality & ADDR_LIMIT_32BIT ? 0x10000 : 0x120000000UL) ++ ++#define PAX_DELTA_MMAP_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 28) ++#define PAX_DELTA_STACK_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 19) ++#endif ++ + /* $0 is set by ld.so to a pointer to a function which might be + registered using atexit. This provides a mean for the dynamic + linker to call DT_FINI functions for shared libraries that have +diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h +index bc2a0da..8ad11ee 100644 +--- a/arch/alpha/include/asm/pgalloc.h ++++ b/arch/alpha/include/asm/pgalloc.h +@@ -29,6 +29,12 @@ pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd) + pgd_set(pgd, pmd); + } + ++static inline void ++pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd) ++{ ++ pgd_populate(mm, pgd, pmd); ++} ++ + extern pgd_t *pgd_alloc(struct mm_struct *mm); + + static inline void +diff --git a/arch/alpha/include/asm/pgtable.h b/arch/alpha/include/asm/pgtable.h +index 81a4342..348b927 100644 +--- a/arch/alpha/include/asm/pgtable.h ++++ b/arch/alpha/include/asm/pgtable.h +@@ -102,6 +102,17 @@ struct vm_area_struct; + #define PAGE_SHARED __pgprot(_PAGE_VALID | __ACCESS_BITS) + #define PAGE_COPY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW) + #define PAGE_READONLY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW) ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOE) ++# define PAGE_COPY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE) ++# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE) ++#else ++# define PAGE_SHARED_NOEXEC PAGE_SHARED ++# define PAGE_COPY_NOEXEC PAGE_COPY ++# define PAGE_READONLY_NOEXEC PAGE_READONLY ++#endif ++ + #define PAGE_KERNEL __pgprot(_PAGE_VALID | _PAGE_ASM | _PAGE_KRE | _PAGE_KWE) + + #define _PAGE_NORMAL(x) __pgprot(_PAGE_VALID | __ACCESS_BITS | (x)) +diff --git a/arch/alpha/kernel/module.c b/arch/alpha/kernel/module.c +index 2fd00b7..cfd5069 100644 +--- a/arch/alpha/kernel/module.c ++++ b/arch/alpha/kernel/module.c +@@ -160,7 +160,7 @@ apply_relocate_add(Elf64_Shdr *sechdrs, const char *strtab, + + /* The small sections were sorted to the end of the segment. + The following should definitely cover them. */ +- gp = (u64)me->module_core + me->core_size - 0x8000; ++ gp = (u64)me->module_core_rw + me->core_size_rw - 0x8000; + got = sechdrs[me->arch.gotsecindex].sh_addr; + + for (i = 0; i < n; i++) { +diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c +index 49ee319..9ee7d14 100644 +--- a/arch/alpha/kernel/osf_sys.c ++++ b/arch/alpha/kernel/osf_sys.c +@@ -1146,7 +1146,7 @@ arch_get_unmapped_area_1(unsigned long addr, unsigned long len, + /* At this point: (!vma || addr < vma->vm_end). */ + if (limit - len < addr) + return -ENOMEM; +- if (!vma || addr + len <= vma->vm_start) ++ if (check_heap_stack_gap(vma, addr, len)) + return addr; + addr = vma->vm_end; + vma = vma->vm_next; +@@ -1182,6 +1182,10 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, + merely specific addresses, but regions of memory -- perhaps + this feature should be incorporated into all ports? */ + ++#ifdef CONFIG_PAX_RANDMMAP ++ if (!(current->mm->pax_flags & MF_PAX_RANDMMAP)) ++#endif ++ + if (addr) { + addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit); + if (addr != (unsigned long) -ENOMEM) +@@ -1189,8 +1193,8 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, + } + + /* Next, try allocating at TASK_UNMAPPED_BASE. */ +- addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE), +- len, limit); ++ addr = arch_get_unmapped_area_1 (PAGE_ALIGN(current->mm->mmap_base), len, limit); ++ + if (addr != (unsigned long) -ENOMEM) + return addr; + +diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c +index 5eecab1..609abc0 100644 +--- a/arch/alpha/mm/fault.c ++++ b/arch/alpha/mm/fault.c +@@ -53,6 +53,124 @@ __load_new_mm_context(struct mm_struct *next_mm) + __reload_thread(pcb); + } + ++#ifdef CONFIG_PAX_PAGEEXEC ++/* ++ * PaX: decide what to do with offenders (regs->pc = fault address) ++ * ++ * returns 1 when task should be killed ++ * 2 when patched PLT trampoline was detected ++ * 3 when unpatched PLT trampoline was detected ++ */ ++static int pax_handle_fetch_fault(struct pt_regs *regs) ++{ ++ ++#ifdef CONFIG_PAX_EMUPLT ++ int err; ++ ++ do { /* PaX: patched PLT emulation #1 */ ++ unsigned int ldah, ldq, jmp; ++ ++ err = get_user(ldah, (unsigned int *)regs->pc); ++ err |= get_user(ldq, (unsigned int *)(regs->pc+4)); ++ err |= get_user(jmp, (unsigned int *)(regs->pc+8)); ++ ++ if (err) ++ break; ++ ++ if ((ldah & 0xFFFF0000U) == 0x277B0000U && ++ (ldq & 0xFFFF0000U) == 0xA77B0000U && ++ jmp == 0x6BFB0000U) ++ { ++ unsigned long r27, addr; ++ unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16; ++ unsigned long addrl = ldq | 0xFFFFFFFFFFFF0000UL; ++ ++ addr = regs->r27 + ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL); ++ err = get_user(r27, (unsigned long *)addr); ++ if (err) ++ break; ++ ++ regs->r27 = r27; ++ regs->pc = r27; ++ return 2; ++ } ++ } while (0); ++ ++ do { /* PaX: patched PLT emulation #2 */ ++ unsigned int ldah, lda, br; ++ ++ err = get_user(ldah, (unsigned int *)regs->pc); ++ err |= get_user(lda, (unsigned int *)(regs->pc+4)); ++ err |= get_user(br, (unsigned int *)(regs->pc+8)); ++ ++ if (err) ++ break; ++ ++ if ((ldah & 0xFFFF0000U) == 0x277B0000U && ++ (lda & 0xFFFF0000U) == 0xA77B0000U && ++ (br & 0xFFE00000U) == 0xC3E00000U) ++ { ++ unsigned long addr = br | 0xFFFFFFFFFFE00000UL; ++ unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16; ++ unsigned long addrl = lda | 0xFFFFFFFFFFFF0000UL; ++ ++ regs->r27 += ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL); ++ regs->pc += 12 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2); ++ return 2; ++ } ++ } while (0); ++ ++ do { /* PaX: unpatched PLT emulation */ ++ unsigned int br; ++ ++ err = get_user(br, (unsigned int *)regs->pc); ++ ++ if (!err && (br & 0xFFE00000U) == 0xC3800000U) { ++ unsigned int br2, ldq, nop, jmp; ++ unsigned long addr = br | 0xFFFFFFFFFFE00000UL, resolver; ++ ++ addr = regs->pc + 4 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2); ++ err = get_user(br2, (unsigned int *)addr); ++ err |= get_user(ldq, (unsigned int *)(addr+4)); ++ err |= get_user(nop, (unsigned int *)(addr+8)); ++ err |= get_user(jmp, (unsigned int *)(addr+12)); ++ err |= get_user(resolver, (unsigned long *)(addr+16)); ++ ++ if (err) ++ break; ++ ++ if (br2 == 0xC3600000U && ++ ldq == 0xA77B000CU && ++ nop == 0x47FF041FU && ++ jmp == 0x6B7B0000U) ++ { ++ regs->r28 = regs->pc+4; ++ regs->r27 = addr+16; ++ regs->pc = resolver; ++ return 3; ++ } ++ } ++ } while (0); ++#endif ++ ++ return 1; ++} ++ ++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) ++{ ++ unsigned long i; ++ ++ printk(KERN_ERR "PAX: bytes at PC: "); ++ for (i = 0; i < 5; i++) { ++ unsigned int c; ++ if (get_user(c, (unsigned int *)pc+i)) ++ printk(KERN_CONT "???????? "); ++ else ++ printk(KERN_CONT "%08x ", c); ++ } ++ printk("\n"); ++} ++#endif + + /* + * This routine handles page faults. It determines the address, +@@ -130,8 +248,29 @@ do_page_fault(unsigned long address, unsigned long mmcsr, + good_area: + si_code = SEGV_ACCERR; + if (cause < 0) { +- if (!(vma->vm_flags & VM_EXEC)) ++ if (!(vma->vm_flags & VM_EXEC)) { ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->pc) ++ goto bad_area; ++ ++ up_read(&mm->mmap_sem); ++ switch (pax_handle_fetch_fault(regs)) { ++ ++#ifdef CONFIG_PAX_EMUPLT ++ case 2: ++ case 3: ++ return; ++#endif ++ ++ } ++ pax_report_fault(regs, (void *)regs->pc, (void *)rdusp()); ++ do_group_exit(SIGKILL); ++#else + goto bad_area; ++#endif ++ ++ } + } else if (!cause) { + /* Allow reads even for write-only mappings */ + if (!(vma->vm_flags & (VM_READ | VM_WRITE))) +diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h +index 68374ba..cff7196 100644 +--- a/arch/arm/include/asm/atomic.h ++++ b/arch/arm/include/asm/atomic.h +@@ -17,17 +17,35 @@ + #include <asm/barrier.h> + #include <asm/cmpxchg.h> + ++#ifdef CONFIG_GENERIC_ATOMIC64 ++#include <asm-generic/atomic64.h> ++#endif ++ + #define ATOMIC_INIT(i) { (i) } + + #ifdef __KERNEL__ + ++#define _ASM_EXTABLE(from, to) \ ++" .pushsection __ex_table,\"a\"\n"\ ++" .align 3\n" \ ++" .long " #from ", " #to"\n" \ ++" .popsection" ++ + /* + * On ARM, ordinary assignment (str instruction) doesn't clear the local + * strex/ldrex monitor on some implementations. The reason we can use it for + * atomic_set() is the clrex or dummy strex done on every exception return. + */ + #define atomic_read(v) (*(volatile int *)&(v)->counter) ++static inline int atomic_read_unchecked(const atomic_unchecked_t *v) ++{ ++ return v->counter; ++} + #define atomic_set(v,i) (((v)->counter) = (i)) ++static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i) ++{ ++ v->counter = i; ++} + + #if __LINUX_ARM_ARCH__ >= 6 + +@@ -42,6 +60,35 @@ static inline void atomic_add(int i, atomic_t *v) + int result; + + __asm__ __volatile__("@ atomic_add\n" ++"1: ldrex %1, [%3]\n" ++" adds %0, %1, %4\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++" bvc 3f\n" ++"2: bkpt 0xf103\n" ++"3:\n" ++#endif ++ ++" strex %1, %0, [%3]\n" ++" teq %1, #0\n" ++" bne 1b" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++"\n4:\n" ++ _ASM_EXTABLE(2b, 4b) ++#endif ++ ++ : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) ++ : "r" (&v->counter), "Ir" (i) ++ : "cc"); ++} ++ ++static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v) ++{ ++ unsigned long tmp; ++ int result; ++ ++ __asm__ __volatile__("@ atomic_add_unchecked\n" + "1: ldrex %0, [%3]\n" + " add %0, %0, %4\n" + " strex %1, %0, [%3]\n" +@@ -60,6 +107,42 @@ static inline int atomic_add_return(int i, atomic_t *v) + smp_mb(); + + __asm__ __volatile__("@ atomic_add_return\n" ++"1: ldrex %1, [%3]\n" ++" adds %0, %1, %4\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++" bvc 3f\n" ++" mov %0, %1\n" ++"2: bkpt 0xf103\n" ++"3:\n" ++#endif ++ ++" strex %1, %0, [%3]\n" ++" teq %1, #0\n" ++" bne 1b" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++"\n4:\n" ++ _ASM_EXTABLE(2b, 4b) ++#endif ++ ++ : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) ++ : "r" (&v->counter), "Ir" (i) ++ : "cc"); ++ ++ smp_mb(); ++ ++ return result; ++} ++ ++static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v) ++{ ++ unsigned long tmp; ++ int result; ++ ++ smp_mb(); ++ ++ __asm__ __volatile__("@ atomic_add_return_unchecked\n" + "1: ldrex %0, [%3]\n" + " add %0, %0, %4\n" + " strex %1, %0, [%3]\n" +@@ -80,6 +163,35 @@ static inline void atomic_sub(int i, atomic_t *v) + int result; + + __asm__ __volatile__("@ atomic_sub\n" ++"1: ldrex %1, [%3]\n" ++" subs %0, %1, %4\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++" bvc 3f\n" ++"2: bkpt 0xf103\n" ++"3:\n" ++#endif ++ ++" strex %1, %0, [%3]\n" ++" teq %1, #0\n" ++" bne 1b" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++"\n4:\n" ++ _ASM_EXTABLE(2b, 4b) ++#endif ++ ++ : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) ++ : "r" (&v->counter), "Ir" (i) ++ : "cc"); ++} ++ ++static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v) ++{ ++ unsigned long tmp; ++ int result; ++ ++ __asm__ __volatile__("@ atomic_sub_unchecked\n" + "1: ldrex %0, [%3]\n" + " sub %0, %0, %4\n" + " strex %1, %0, [%3]\n" +@@ -98,11 +210,25 @@ static inline int atomic_sub_return(int i, atomic_t *v) + smp_mb(); + + __asm__ __volatile__("@ atomic_sub_return\n" +-"1: ldrex %0, [%3]\n" +-" sub %0, %0, %4\n" ++"1: ldrex %1, [%3]\n" ++" sub %0, %1, %4\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++" bvc 3f\n" ++" mov %0, %1\n" ++"2: bkpt 0xf103\n" ++"3:\n" ++#endif ++ + " strex %1, %0, [%3]\n" + " teq %1, #0\n" + " bne 1b" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++"\n4:\n" ++ _ASM_EXTABLE(2b, 4b) ++#endif ++ + : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) + : "r" (&v->counter), "Ir" (i) + : "cc"); +@@ -134,6 +260,28 @@ static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new) + return oldval; + } + ++static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *ptr, int old, int new) ++{ ++ unsigned long oldval, res; ++ ++ smp_mb(); ++ ++ do { ++ __asm__ __volatile__("@ atomic_cmpxchg_unchecked\n" ++ "ldrex %1, [%3]\n" ++ "mov %0, #0\n" ++ "teq %1, %4\n" ++ "strexeq %0, %5, [%3]\n" ++ : "=&r" (res), "=&r" (oldval), "+Qo" (ptr->counter) ++ : "r" (&ptr->counter), "Ir" (old), "r" (new) ++ : "cc"); ++ } while (res); ++ ++ smp_mb(); ++ ++ return oldval; ++} ++ + static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) + { + unsigned long tmp, tmp2; +@@ -167,7 +315,17 @@ static inline int atomic_add_return(int i, atomic_t *v) + + return val; + } ++ ++static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v) ++{ ++ return atomic_add_return(i, v); ++} ++ + #define atomic_add(i, v) (void) atomic_add_return(i, v) ++static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v) ++{ ++ (void) atomic_add_return(i, v); ++} + + static inline int atomic_sub_return(int i, atomic_t *v) + { +@@ -182,6 +340,10 @@ static inline int atomic_sub_return(int i, atomic_t *v) + return val; + } + #define atomic_sub(i, v) (void) atomic_sub_return(i, v) ++static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v) ++{ ++ (void) atomic_sub_return(i, v); ++} + + static inline int atomic_cmpxchg(atomic_t *v, int old, int new) + { +@@ -197,6 +359,11 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new) + return ret; + } + ++static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new) ++{ ++ return atomic_cmpxchg(v, old, new); ++} ++ + static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) + { + unsigned long flags; +@@ -209,6 +376,10 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) + #endif /* __LINUX_ARM_ARCH__ */ + + #define atomic_xchg(v, new) (xchg(&((v)->counter), new)) ++static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new) ++{ ++ return xchg(&v->counter, new); ++} + + static inline int __atomic_add_unless(atomic_t *v, int a, int u) + { +@@ -221,11 +392,27 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u) + } + + #define atomic_inc(v) atomic_add(1, v) ++static inline void atomic_inc_unchecked(atomic_unchecked_t *v) ++{ ++ atomic_add_unchecked(1, v); ++} + #define atomic_dec(v) atomic_sub(1, v) ++static inline void atomic_dec_unchecked(atomic_unchecked_t *v) ++{ ++ atomic_sub_unchecked(1, v); ++} + + #define atomic_inc_and_test(v) (atomic_add_return(1, v) == 0) ++static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v) ++{ ++ return atomic_add_return_unchecked(1, v) == 0; ++} + #define atomic_dec_and_test(v) (atomic_sub_return(1, v) == 0) + #define atomic_inc_return(v) (atomic_add_return(1, v)) ++static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v) ++{ ++ return atomic_add_return_unchecked(1, v); ++} + #define atomic_dec_return(v) (atomic_sub_return(1, v)) + #define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0) + +@@ -241,6 +428,14 @@ typedef struct { + u64 __aligned(8) counter; + } atomic64_t; + ++#ifdef CONFIG_PAX_REFCOUNT ++typedef struct { ++ u64 __aligned(8) counter; ++} atomic64_unchecked_t; ++#else ++typedef atomic64_t atomic64_unchecked_t; ++#endif ++ + #define ATOMIC64_INIT(i) { (i) } + + static inline u64 atomic64_read(atomic64_t *v) +@@ -256,6 +451,19 @@ static inline u64 atomic64_read(atomic64_t *v) + return result; + } + ++static inline u64 atomic64_read_unchecked(atomic64_unchecked_t *v) ++{ ++ u64 result; ++ ++ __asm__ __volatile__("@ atomic64_read_unchecked\n" ++" ldrexd %0, %H0, [%1]" ++ : "=&r" (result) ++ : "r" (&v->counter), "Qo" (v->counter) ++ ); ++ ++ return result; ++} ++ + static inline void atomic64_set(atomic64_t *v, u64 i) + { + u64 tmp; +@@ -270,6 +478,20 @@ static inline void atomic64_set(atomic64_t *v, u64 i) + : "cc"); + } + ++static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, u64 i) ++{ ++ u64 tmp; ++ ++ __asm__ __volatile__("@ atomic64_set_unchecked\n" ++"1: ldrexd %0, %H0, [%2]\n" ++" strexd %0, %3, %H3, [%2]\n" ++" teq %0, #0\n" ++" bne 1b" ++ : "=&r" (tmp), "=Qo" (v->counter) ++ : "r" (&v->counter), "r" (i) ++ : "cc"); ++} ++ + static inline void atomic64_add(u64 i, atomic64_t *v) + { + u64 result; +@@ -278,6 +500,36 @@ static inline void atomic64_add(u64 i, atomic64_t *v) + __asm__ __volatile__("@ atomic64_add\n" + "1: ldrexd %0, %H0, [%3]\n" + " adds %0, %0, %4\n" ++" adcs %H0, %H0, %H4\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++" bvc 3f\n" ++"2: bkpt 0xf103\n" ++"3:\n" ++#endif ++ ++" strexd %1, %0, %H0, [%3]\n" ++" teq %1, #0\n" ++" bne 1b" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++"\n4:\n" ++ _ASM_EXTABLE(2b, 4b) ++#endif ++ ++ : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) ++ : "r" (&v->counter), "r" (i) ++ : "cc"); ++} ++ ++static inline void atomic64_add_unchecked(u64 i, atomic64_unchecked_t *v) ++{ ++ u64 result; ++ unsigned long tmp; ++ ++ __asm__ __volatile__("@ atomic64_add_unchecked\n" ++"1: ldrexd %0, %H0, [%3]\n" ++" adds %0, %0, %4\n" + " adc %H0, %H0, %H4\n" + " strexd %1, %0, %H0, [%3]\n" + " teq %1, #0\n" +@@ -289,12 +541,49 @@ static inline void atomic64_add(u64 i, atomic64_t *v) + + static inline u64 atomic64_add_return(u64 i, atomic64_t *v) + { +- u64 result; +- unsigned long tmp; ++ u64 result, tmp; + + smp_mb(); + + __asm__ __volatile__("@ atomic64_add_return\n" ++"1: ldrexd %1, %H1, [%3]\n" ++" adds %0, %1, %4\n" ++" adcs %H0, %H1, %H4\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++" bvc 3f\n" ++" mov %0, %1\n" ++" mov %H0, %H1\n" ++"2: bkpt 0xf103\n" ++"3:\n" ++#endif ++ ++" strexd %1, %0, %H0, [%3]\n" ++" teq %1, #0\n" ++" bne 1b" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++"\n4:\n" ++ _ASM_EXTABLE(2b, 4b) ++#endif ++ ++ : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) ++ : "r" (&v->counter), "r" (i) ++ : "cc"); ++ ++ smp_mb(); ++ ++ return result; ++} ++ ++static inline u64 atomic64_add_return_unchecked(u64 i, atomic64_unchecked_t *v) ++{ ++ u64 result; ++ unsigned long tmp; ++ ++ smp_mb(); ++ ++ __asm__ __volatile__("@ atomic64_add_return_unchecked\n" + "1: ldrexd %0, %H0, [%3]\n" + " adds %0, %0, %4\n" + " adc %H0, %H0, %H4\n" +@@ -318,6 +607,36 @@ static inline void atomic64_sub(u64 i, atomic64_t *v) + __asm__ __volatile__("@ atomic64_sub\n" + "1: ldrexd %0, %H0, [%3]\n" + " subs %0, %0, %4\n" ++" sbcs %H0, %H0, %H4\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++" bvc 3f\n" ++"2: bkpt 0xf103\n" ++"3:\n" ++#endif ++ ++" strexd %1, %0, %H0, [%3]\n" ++" teq %1, #0\n" ++" bne 1b" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++"\n4:\n" ++ _ASM_EXTABLE(2b, 4b) ++#endif ++ ++ : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) ++ : "r" (&v->counter), "r" (i) ++ : "cc"); ++} ++ ++static inline void atomic64_sub_unchecked(u64 i, atomic64_unchecked_t *v) ++{ ++ u64 result; ++ unsigned long tmp; ++ ++ __asm__ __volatile__("@ atomic64_sub_unchecked\n" ++"1: ldrexd %0, %H0, [%3]\n" ++" subs %0, %0, %4\n" + " sbc %H0, %H0, %H4\n" + " strexd %1, %0, %H0, [%3]\n" + " teq %1, #0\n" +@@ -329,18 +648,32 @@ static inline void atomic64_sub(u64 i, atomic64_t *v) + + static inline u64 atomic64_sub_return(u64 i, atomic64_t *v) + { +- u64 result; +- unsigned long tmp; ++ u64 result, tmp; + + smp_mb(); + + __asm__ __volatile__("@ atomic64_sub_return\n" +-"1: ldrexd %0, %H0, [%3]\n" +-" subs %0, %0, %4\n" +-" sbc %H0, %H0, %H4\n" ++"1: ldrexd %1, %H1, [%3]\n" ++" subs %0, %1, %4\n" ++" sbc %H0, %H1, %H4\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++" bvc 3f\n" ++" mov %0, %1\n" ++" mov %H0, %H1\n" ++"2: bkpt 0xf103\n" ++"3:\n" ++#endif ++ + " strexd %1, %0, %H0, [%3]\n" + " teq %1, #0\n" + " bne 1b" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++"\n4:\n" ++ _ASM_EXTABLE(2b, 4b) ++#endif ++ + : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) + : "r" (&v->counter), "r" (i) + : "cc"); +@@ -374,6 +707,30 @@ static inline u64 atomic64_cmpxchg(atomic64_t *ptr, u64 old, u64 new) + return oldval; + } + ++static inline u64 atomic64_cmpxchg_unchecked(atomic64_unchecked_t *ptr, u64 old, u64 new) ++{ ++ u64 oldval; ++ unsigned long res; ++ ++ smp_mb(); ++ ++ do { ++ __asm__ __volatile__("@ atomic64_cmpxchg_unchecked\n" ++ "ldrexd %1, %H1, [%3]\n" ++ "mov %0, #0\n" ++ "teq %1, %4\n" ++ "teqeq %H1, %H4\n" ++ "strexdeq %0, %5, %H5, [%3]" ++ : "=&r" (res), "=&r" (oldval), "+Qo" (ptr->counter) ++ : "r" (&ptr->counter), "r" (old), "r" (new) ++ : "cc"); ++ } while (res); ++ ++ smp_mb(); ++ ++ return oldval; ++} ++ + static inline u64 atomic64_xchg(atomic64_t *ptr, u64 new) + { + u64 result; +@@ -397,21 +754,34 @@ static inline u64 atomic64_xchg(atomic64_t *ptr, u64 new) + + static inline u64 atomic64_dec_if_positive(atomic64_t *v) + { +- u64 result; +- unsigned long tmp; ++ u64 result, tmp; + + smp_mb(); + + __asm__ __volatile__("@ atomic64_dec_if_positive\n" +-"1: ldrexd %0, %H0, [%3]\n" +-" subs %0, %0, #1\n" +-" sbc %H0, %H0, #0\n" ++"1: ldrexd %1, %H1, [%3]\n" ++" subs %0, %1, #1\n" ++" sbc %H0, %H1, #0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++" bvc 3f\n" ++" mov %0, %1\n" ++" mov %H0, %H1\n" ++"2: bkpt 0xf103\n" ++"3:\n" ++#endif ++ + " teq %H0, #0\n" +-" bmi 2f\n" ++" bmi 4f\n" + " strexd %1, %0, %H0, [%3]\n" + " teq %1, #0\n" + " bne 1b\n" +-"2:" ++"4:\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ _ASM_EXTABLE(2b, 4b) ++#endif ++ + : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) + : "r" (&v->counter) + : "cc"); +@@ -434,13 +804,25 @@ static inline int atomic64_add_unless(atomic64_t *v, u64 a, u64 u) + " teq %0, %5\n" + " teqeq %H0, %H5\n" + " moveq %1, #0\n" +-" beq 2f\n" ++" beq 4f\n" + " adds %0, %0, %6\n" + " adc %H0, %H0, %H6\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++" bvc 3f\n" ++"2: bkpt 0xf103\n" ++"3:\n" ++#endif ++ + " strexd %2, %0, %H0, [%4]\n" + " teq %2, #0\n" + " bne 1b\n" +-"2:" ++"4:\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ _ASM_EXTABLE(2b, 4b) ++#endif ++ + : "=&r" (val), "+r" (ret), "=&r" (tmp), "+Qo" (v->counter) + : "r" (&v->counter), "r" (u), "r" (a) + : "cc"); +@@ -453,10 +835,13 @@ static inline int atomic64_add_unless(atomic64_t *v, u64 a, u64 u) + + #define atomic64_add_negative(a, v) (atomic64_add_return((a), (v)) < 0) + #define atomic64_inc(v) atomic64_add(1LL, (v)) ++#define atomic64_inc_unchecked(v) atomic64_add_unchecked(1LL, (v)) + #define atomic64_inc_return(v) atomic64_add_return(1LL, (v)) ++#define atomic64_inc_return_unchecked(v) atomic64_add_return_unchecked(1LL, (v)) + #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0) + #define atomic64_sub_and_test(a, v) (atomic64_sub_return((a), (v)) == 0) + #define atomic64_dec(v) atomic64_sub(1LL, (v)) ++#define atomic64_dec_unchecked(v) atomic64_sub_unchecked(1LL, (v)) + #define atomic64_dec_return(v) atomic64_sub_return(1LL, (v)) + #define atomic64_dec_and_test(v) (atomic64_dec_return((v)) == 0) + #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1LL, 0LL) +diff --git a/arch/arm/include/asm/cache.h b/arch/arm/include/asm/cache.h +index 75fe66b..2255c86 100644 +--- a/arch/arm/include/asm/cache.h ++++ b/arch/arm/include/asm/cache.h +@@ -4,8 +4,10 @@ + #ifndef __ASMARM_CACHE_H + #define __ASMARM_CACHE_H + ++#include <linux/const.h> ++ + #define L1_CACHE_SHIFT CONFIG_ARM_L1_CACHE_SHIFT +-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + /* + * Memory returned by kmalloc() may be used for DMA, so we must make +diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h +index 1252a26..9dc17b5 100644 +--- a/arch/arm/include/asm/cacheflush.h ++++ b/arch/arm/include/asm/cacheflush.h +@@ -108,7 +108,7 @@ struct cpu_cache_fns { + void (*dma_unmap_area)(const void *, size_t, int); + + void (*dma_flush_range)(const void *, const void *); +-}; ++} __no_const; + + /* + * Select the calling method +diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h +index d41d7cb..9bea5e0 100644 +--- a/arch/arm/include/asm/cmpxchg.h ++++ b/arch/arm/include/asm/cmpxchg.h +@@ -102,6 +102,8 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size + + #define xchg(ptr,x) \ + ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) ++#define xchg_unchecked(ptr,x) \ ++ ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) + + #include <asm-generic/cmpxchg-local.h> + +diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h +index 38050b1..9d90e8b 100644 +--- a/arch/arm/include/asm/elf.h ++++ b/arch/arm/include/asm/elf.h +@@ -116,7 +116,14 @@ int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs); + the loader. We need to make sure that it is out of the way of the program + that it will "exec", and that there is sufficient room for the brk. */ + +-#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) ++#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) ++ ++#ifdef CONFIG_PAX_ASLR ++#define PAX_ELF_ET_DYN_BASE 0x00008000UL ++ ++#define PAX_DELTA_MMAP_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10) ++#define PAX_DELTA_STACK_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10) ++#endif + + /* When the program starts, a1 contains a pointer to a function to be + registered with atexit, as per the SVR4 ABI. A value of 0 means we +@@ -126,8 +133,4 @@ int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs); + extern void elf_set_personality(const struct elf32_hdr *); + #define SET_PERSONALITY(ex) elf_set_personality(&(ex)) + +-struct mm_struct; +-extern unsigned long arch_randomize_brk(struct mm_struct *mm); +-#define arch_randomize_brk arch_randomize_brk +- + #endif +diff --git a/arch/arm/include/asm/kmap_types.h b/arch/arm/include/asm/kmap_types.h +index e51b1e8..32a3113 100644 +--- a/arch/arm/include/asm/kmap_types.h ++++ b/arch/arm/include/asm/kmap_types.h +@@ -21,6 +21,7 @@ enum km_type { + KM_L1_CACHE, + KM_L2_CACHE, + KM_KDB, ++ KM_CLEARPAGE, + KM_TYPE_NR + }; + +diff --git a/arch/arm/include/asm/outercache.h b/arch/arm/include/asm/outercache.h +index 53426c6..c7baff3 100644 +--- a/arch/arm/include/asm/outercache.h ++++ b/arch/arm/include/asm/outercache.h +@@ -35,7 +35,7 @@ struct outer_cache_fns { + #endif + void (*set_debug)(unsigned long); + void (*resume)(void); +-}; ++} __no_const; + + #ifdef CONFIG_OUTER_CACHE + +diff --git a/arch/arm/include/asm/page.h b/arch/arm/include/asm/page.h +index 5838361..da6e813 100644 +--- a/arch/arm/include/asm/page.h ++++ b/arch/arm/include/asm/page.h +@@ -123,7 +123,7 @@ struct cpu_user_fns { + void (*cpu_clear_user_highpage)(struct page *page, unsigned long vaddr); + void (*cpu_copy_user_highpage)(struct page *to, struct page *from, + unsigned long vaddr, struct vm_area_struct *vma); +-}; ++} __no_const; + + #ifdef MULTI_USER + extern struct cpu_user_fns cpu_user; +diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h +index 943504f..bf8d667 100644 +--- a/arch/arm/include/asm/pgalloc.h ++++ b/arch/arm/include/asm/pgalloc.h +@@ -43,6 +43,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) + set_pud(pud, __pud(__pa(pmd) | PMD_TYPE_TABLE)); + } + ++static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) ++{ ++ pud_populate(mm, pud, pmd); ++} ++ + #else /* !CONFIG_ARM_LPAE */ + + /* +@@ -51,6 +56,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) + #define pmd_alloc_one(mm,addr) ({ BUG(); ((pmd_t *)2); }) + #define pmd_free(mm, pmd) do { } while (0) + #define pud_populate(mm,pmd,pte) BUG() ++#define pud_populate_kernel(mm,pmd,pte) BUG() + + #endif /* CONFIG_ARM_LPAE */ + +diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h +index 0f04d84..2be5648 100644 +--- a/arch/arm/include/asm/thread_info.h ++++ b/arch/arm/include/asm/thread_info.h +@@ -148,6 +148,12 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *, + #define TIF_NOTIFY_RESUME 2 /* callback before returning to user */ + #define TIF_SYSCALL_TRACE 8 + #define TIF_SYSCALL_AUDIT 9 ++ ++/* within 8 bits of TIF_SYSCALL_TRACE ++ to meet flexible second operand requirements ++*/ ++#define TIF_GRSEC_SETXID 10 ++ + #define TIF_POLLING_NRFLAG 16 + #define TIF_USING_IWMMXT 17 + #define TIF_MEMDIE 18 /* is terminating due to OOM killer */ +@@ -163,9 +169,11 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *, + #define _TIF_USING_IWMMXT (1 << TIF_USING_IWMMXT) + #define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK) + #define _TIF_SECCOMP (1 << TIF_SECCOMP) ++#define _TIF_GRSEC_SETXID (1 << TIF_GRSEC_SETXID) + + /* Checks for any syscall work in entry-common.S */ +-#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT) ++#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \ ++ _TIF_GRSEC_SETXID) + + /* + * Change these and you break ASM code in entry-common.S +diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h +index 71f6536..602f279 100644 +--- a/arch/arm/include/asm/uaccess.h ++++ b/arch/arm/include/asm/uaccess.h +@@ -22,6 +22,8 @@ + #define VERIFY_READ 0 + #define VERIFY_WRITE 1 + ++extern void check_object_size(const void *ptr, unsigned long n, bool to); ++ + /* + * The exception table consists of pairs of addresses: the first is the + * address of an instruction that is allowed to fault, and the second is +@@ -387,8 +389,23 @@ do { \ + + + #ifdef CONFIG_MMU +-extern unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n); +-extern unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n); ++extern unsigned long __must_check ___copy_from_user(void *to, const void __user *from, unsigned long n); ++extern unsigned long __must_check ___copy_to_user(void __user *to, const void *from, unsigned long n); ++ ++static inline unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n) ++{ ++ if (!__builtin_constant_p(n)) ++ check_object_size(to, n, false); ++ return ___copy_from_user(to, from, n); ++} ++ ++static inline unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n) ++{ ++ if (!__builtin_constant_p(n)) ++ check_object_size(from, n, true); ++ return ___copy_to_user(to, from, n); ++} ++ + extern unsigned long __must_check __copy_to_user_std(void __user *to, const void *from, unsigned long n); + extern unsigned long __must_check __clear_user(void __user *addr, unsigned long n); + extern unsigned long __must_check __clear_user_std(void __user *addr, unsigned long n); +@@ -403,6 +420,9 @@ extern unsigned long __must_check __strnlen_user(const char __user *s, long n); + + static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n) + { ++ if ((long)n < 0) ++ return n; ++ + if (access_ok(VERIFY_READ, from, n)) + n = __copy_from_user(to, from, n); + else /* security hole - plug it */ +@@ -412,6 +432,9 @@ static inline unsigned long __must_check copy_from_user(void *to, const void __u + + static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n) + { ++ if ((long)n < 0) ++ return n; ++ + if (access_ok(VERIFY_WRITE, to, n)) + n = __copy_to_user(to, from, n); + return n; +diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c +index b57c75e..ed2d6b2 100644 +--- a/arch/arm/kernel/armksyms.c ++++ b/arch/arm/kernel/armksyms.c +@@ -94,8 +94,8 @@ EXPORT_SYMBOL(__strncpy_from_user); + #ifdef CONFIG_MMU + EXPORT_SYMBOL(copy_page); + +-EXPORT_SYMBOL(__copy_from_user); +-EXPORT_SYMBOL(__copy_to_user); ++EXPORT_SYMBOL(___copy_from_user); ++EXPORT_SYMBOL(___copy_to_user); + EXPORT_SYMBOL(__clear_user); + + EXPORT_SYMBOL(__get_user_1); +diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c +index 2b7b017..c380fa2 100644 +--- a/arch/arm/kernel/process.c ++++ b/arch/arm/kernel/process.c +@@ -28,7 +28,6 @@ + #include <linux/tick.h> + #include <linux/utsname.h> + #include <linux/uaccess.h> +-#include <linux/random.h> + #include <linux/hw_breakpoint.h> + #include <linux/cpuidle.h> + +@@ -275,9 +274,10 @@ void machine_power_off(void) + machine_shutdown(); + if (pm_power_off) + pm_power_off(); ++ BUG(); + } + +-void machine_restart(char *cmd) ++__noreturn void machine_restart(char *cmd) + { + machine_shutdown(); + +@@ -519,12 +519,6 @@ unsigned long get_wchan(struct task_struct *p) + return 0; + } + +-unsigned long arch_randomize_brk(struct mm_struct *mm) +-{ +- unsigned long range_end = mm->brk + 0x02000000; +- return randomize_range(mm->brk, range_end, 0) ? : mm->brk; +-} +- + #ifdef CONFIG_MMU + /* + * The vectors page is always readable from user space for the +diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c +index 9650c14..ae30cdd 100644 +--- a/arch/arm/kernel/ptrace.c ++++ b/arch/arm/kernel/ptrace.c +@@ -906,10 +906,19 @@ long arch_ptrace(struct task_struct *child, long request, + return ret; + } + ++#ifdef CONFIG_GRKERNSEC_SETXID ++extern void gr_delayed_cred_worker(void); ++#endif ++ + asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno) + { + unsigned long ip; + ++#ifdef CONFIG_GRKERNSEC_SETXID ++ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID))) ++ gr_delayed_cred_worker(); ++#endif ++ + if (why) + audit_syscall_exit(regs); + else +diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c +index ebfac78..cbea9c0 100644 +--- a/arch/arm/kernel/setup.c ++++ b/arch/arm/kernel/setup.c +@@ -111,13 +111,13 @@ struct processor processor __read_mostly; + struct cpu_tlb_fns cpu_tlb __read_mostly; + #endif + #ifdef MULTI_USER +-struct cpu_user_fns cpu_user __read_mostly; ++struct cpu_user_fns cpu_user __read_only; + #endif + #ifdef MULTI_CACHE +-struct cpu_cache_fns cpu_cache __read_mostly; ++struct cpu_cache_fns cpu_cache __read_only; + #endif + #ifdef CONFIG_OUTER_CACHE +-struct outer_cache_fns outer_cache __read_mostly; ++struct outer_cache_fns outer_cache __read_only; + EXPORT_SYMBOL(outer_cache); + #endif + +diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c +index 63d402f..db1d714 100644 +--- a/arch/arm/kernel/traps.c ++++ b/arch/arm/kernel/traps.c +@@ -264,6 +264,8 @@ static int __die(const char *str, int err, struct thread_info *thread, struct pt + + static DEFINE_RAW_SPINLOCK(die_lock); + ++extern void gr_handle_kernel_exploit(void); ++ + /* + * This function is protected against re-entrancy. + */ +@@ -296,6 +298,9 @@ void die(const char *str, struct pt_regs *regs, int err) + panic("Fatal exception in interrupt"); + if (panic_on_oops) + panic("Fatal exception"); ++ ++ gr_handle_kernel_exploit(); ++ + if (ret != NOTIFY_STOP) + do_exit(SIGSEGV); + } +diff --git a/arch/arm/lib/copy_from_user.S b/arch/arm/lib/copy_from_user.S +index 66a477a..bee61d3 100644 +--- a/arch/arm/lib/copy_from_user.S ++++ b/arch/arm/lib/copy_from_user.S +@@ -16,7 +16,7 @@ + /* + * Prototype: + * +- * size_t __copy_from_user(void *to, const void *from, size_t n) ++ * size_t ___copy_from_user(void *to, const void *from, size_t n) + * + * Purpose: + * +@@ -84,11 +84,11 @@ + + .text + +-ENTRY(__copy_from_user) ++ENTRY(___copy_from_user) + + #include "copy_template.S" + +-ENDPROC(__copy_from_user) ++ENDPROC(___copy_from_user) + + .pushsection .fixup,"ax" + .align 0 +diff --git a/arch/arm/lib/copy_page.S b/arch/arm/lib/copy_page.S +index 6ee2f67..d1cce76 100644 +--- a/arch/arm/lib/copy_page.S ++++ b/arch/arm/lib/copy_page.S +@@ -10,6 +10,7 @@ + * ASM optimised string functions + */ + #include <linux/linkage.h> ++#include <linux/const.h> + #include <asm/assembler.h> + #include <asm/asm-offsets.h> + #include <asm/cache.h> +diff --git a/arch/arm/lib/copy_to_user.S b/arch/arm/lib/copy_to_user.S +index d066df6..df28194 100644 +--- a/arch/arm/lib/copy_to_user.S ++++ b/arch/arm/lib/copy_to_user.S +@@ -16,7 +16,7 @@ + /* + * Prototype: + * +- * size_t __copy_to_user(void *to, const void *from, size_t n) ++ * size_t ___copy_to_user(void *to, const void *from, size_t n) + * + * Purpose: + * +@@ -88,11 +88,11 @@ + .text + + ENTRY(__copy_to_user_std) +-WEAK(__copy_to_user) ++WEAK(___copy_to_user) + + #include "copy_template.S" + +-ENDPROC(__copy_to_user) ++ENDPROC(___copy_to_user) + ENDPROC(__copy_to_user_std) + + .pushsection .fixup,"ax" +diff --git a/arch/arm/lib/uaccess.S b/arch/arm/lib/uaccess.S +index 5c908b1..e712687 100644 +--- a/arch/arm/lib/uaccess.S ++++ b/arch/arm/lib/uaccess.S +@@ -20,7 +20,7 @@ + + #define PAGE_SHIFT 12 + +-/* Prototype: int __copy_to_user(void *to, const char *from, size_t n) ++/* Prototype: int ___copy_to_user(void *to, const char *from, size_t n) + * Purpose : copy a block to user memory from kernel memory + * Params : to - user memory + * : from - kernel memory +@@ -40,7 +40,7 @@ USER( TUSER( strgtb) r3, [r0], #1) @ May fault + sub r2, r2, ip + b .Lc2u_dest_aligned + +-ENTRY(__copy_to_user) ++ENTRY(___copy_to_user) + stmfd sp!, {r2, r4 - r7, lr} + cmp r2, #4 + blt .Lc2u_not_enough +@@ -278,14 +278,14 @@ USER( TUSER( strgeb) r3, [r0], #1) @ May fault + ldrgtb r3, [r1], #0 + USER( TUSER( strgtb) r3, [r0], #1) @ May fault + b .Lc2u_finished +-ENDPROC(__copy_to_user) ++ENDPROC(___copy_to_user) + + .pushsection .fixup,"ax" + .align 0 + 9001: ldmfd sp!, {r0, r4 - r7, pc} + .popsection + +-/* Prototype: unsigned long __copy_from_user(void *to,const void *from,unsigned long n); ++/* Prototype: unsigned long ___copy_from_user(void *to,const void *from,unsigned long n); + * Purpose : copy a block from user memory to kernel memory + * Params : to - kernel memory + * : from - user memory +@@ -304,7 +304,7 @@ USER( TUSER( ldrgtb) r3, [r1], #1) @ May fault + sub r2, r2, ip + b .Lcfu_dest_aligned + +-ENTRY(__copy_from_user) ++ENTRY(___copy_from_user) + stmfd sp!, {r0, r2, r4 - r7, lr} + cmp r2, #4 + blt .Lcfu_not_enough +@@ -544,7 +544,7 @@ USER( TUSER( ldrgeb) r3, [r1], #1) @ May fault + USER( TUSER( ldrgtb) r3, [r1], #1) @ May fault + strgtb r3, [r0], #1 + b .Lcfu_finished +-ENDPROC(__copy_from_user) ++ENDPROC(___copy_from_user) + + .pushsection .fixup,"ax" + .align 0 +diff --git a/arch/arm/lib/uaccess_with_memcpy.c b/arch/arm/lib/uaccess_with_memcpy.c +index 025f742..8432b08 100644 +--- a/arch/arm/lib/uaccess_with_memcpy.c ++++ b/arch/arm/lib/uaccess_with_memcpy.c +@@ -104,7 +104,7 @@ out: + } + + unsigned long +-__copy_to_user(void __user *to, const void *from, unsigned long n) ++___copy_to_user(void __user *to, const void *from, unsigned long n) + { + /* + * This test is stubbed out of the main function above to keep +diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c +index 518091c..eae9a76 100644 +--- a/arch/arm/mach-omap2/board-n8x0.c ++++ b/arch/arm/mach-omap2/board-n8x0.c +@@ -596,7 +596,7 @@ static int n8x0_menelaus_late_init(struct device *dev) + } + #endif + +-static struct menelaus_platform_data n8x0_menelaus_platform_data __initdata = { ++static struct menelaus_platform_data n8x0_menelaus_platform_data __initconst = { + .late_init = n8x0_menelaus_late_init, + }; + +diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c +index 5bb4835..4760f68 100644 +--- a/arch/arm/mm/fault.c ++++ b/arch/arm/mm/fault.c +@@ -174,6 +174,13 @@ __do_user_fault(struct task_struct *tsk, unsigned long addr, + } + #endif + ++#ifdef CONFIG_PAX_PAGEEXEC ++ if (fsr & FSR_LNX_PF) { ++ pax_report_fault(regs, (void *)regs->ARM_pc, (void *)regs->ARM_sp); ++ do_group_exit(SIGKILL); ++ } ++#endif ++ + tsk->thread.address = addr; + tsk->thread.error_code = fsr; + tsk->thread.trap_no = 14; +@@ -397,6 +404,33 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) + } + #endif /* CONFIG_MMU */ + ++#ifdef CONFIG_PAX_PAGEEXEC ++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) ++{ ++ long i; ++ ++ printk(KERN_ERR "PAX: bytes at PC: "); ++ for (i = 0; i < 20; i++) { ++ unsigned char c; ++ if (get_user(c, (__force unsigned char __user *)pc+i)) ++ printk(KERN_CONT "?? "); ++ else ++ printk(KERN_CONT "%02x ", c); ++ } ++ printk("\n"); ++ ++ printk(KERN_ERR "PAX: bytes at SP-4: "); ++ for (i = -1; i < 20; i++) { ++ unsigned long c; ++ if (get_user(c, (__force unsigned long __user *)sp+i)) ++ printk(KERN_CONT "???????? "); ++ else ++ printk(KERN_CONT "%08lx ", c); ++ } ++ printk("\n"); ++} ++#endif ++ + /* + * First Level Translation Fault Handler + * +@@ -577,6 +611,20 @@ do_PrefetchAbort(unsigned long addr, unsigned int ifsr, struct pt_regs *regs) + const struct fsr_info *inf = ifsr_info + fsr_fs(ifsr); + struct siginfo info; + ++#ifdef CONFIG_PAX_REFCOUNT ++ if (fsr_fs(ifsr) == 2) { ++ unsigned int bkpt; ++ ++ if (!probe_kernel_address((unsigned int *)addr, bkpt) && bkpt == 0xe12f1073) { ++ current->thread.error_code = ifsr; ++ current->thread.trap_no = 0; ++ pax_report_refcount_overflow(regs); ++ fixup_exception(regs); ++ return; ++ } ++ } ++#endif ++ + if (!inf->fn(addr, ifsr | FSR_LNX_PF, regs)) + return; + +diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c +index ce8cb19..3ec539d 100644 +--- a/arch/arm/mm/mmap.c ++++ b/arch/arm/mm/mmap.c +@@ -93,6 +93,10 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, + if (len > TASK_SIZE) + return -ENOMEM; + ++#ifdef CONFIG_PAX_RANDMMAP ++ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) ++#endif ++ + if (addr) { + if (do_align) + addr = COLOUR_ALIGN(addr, pgoff); +@@ -100,15 +104,14 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, + addr = PAGE_ALIGN(addr); + + vma = find_vma(mm, addr); +- if (TASK_SIZE - len >= addr && +- (!vma || addr + len <= vma->vm_start)) ++ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len)) + return addr; + } + if (len > mm->cached_hole_size) { +- start_addr = addr = mm->free_area_cache; ++ start_addr = addr = mm->free_area_cache; + } else { +- start_addr = addr = mm->mmap_base; +- mm->cached_hole_size = 0; ++ start_addr = addr = mm->mmap_base; ++ mm->cached_hole_size = 0; + } + + full_search: +@@ -124,14 +127,14 @@ full_search: + * Start a new search - just in case we missed + * some holes. + */ +- if (start_addr != TASK_UNMAPPED_BASE) { +- start_addr = addr = TASK_UNMAPPED_BASE; ++ if (start_addr != mm->mmap_base) { ++ start_addr = addr = mm->mmap_base; + mm->cached_hole_size = 0; + goto full_search; + } + return -ENOMEM; + } +- if (!vma || addr + len <= vma->vm_start) { ++ if (check_heap_stack_gap(vma, addr, len)) { + /* + * Remember the place where we stopped the search: + */ +@@ -266,10 +269,22 @@ void arch_pick_mmap_layout(struct mm_struct *mm) + + if (mmap_is_legacy()) { + mm->mmap_base = TASK_UNMAPPED_BASE + random_factor; ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ mm->mmap_base += mm->delta_mmap; ++#endif ++ + mm->get_unmapped_area = arch_get_unmapped_area; + mm->unmap_area = arch_unmap_area; + } else { + mm->mmap_base = mmap_base(random_factor); ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; ++#endif ++ + mm->get_unmapped_area = arch_get_unmapped_area_topdown; + mm->unmap_area = arch_unmap_area_topdown; + } +diff --git a/arch/arm/plat-orion/include/plat/addr-map.h b/arch/arm/plat-orion/include/plat/addr-map.h +index fd556f7..af2e7d2 100644 +--- a/arch/arm/plat-orion/include/plat/addr-map.h ++++ b/arch/arm/plat-orion/include/plat/addr-map.h +@@ -26,7 +26,7 @@ struct orion_addr_map_cfg { + value in bridge_virt_base */ + void __iomem *(*win_cfg_base) (const struct orion_addr_map_cfg *cfg, + const int win); +-}; ++} __no_const; + + /* + * Information needed to setup one address mapping. +diff --git a/arch/arm/plat-samsung/include/plat/dma-ops.h b/arch/arm/plat-samsung/include/plat/dma-ops.h +index 71a6827..e7fbc23 100644 +--- a/arch/arm/plat-samsung/include/plat/dma-ops.h ++++ b/arch/arm/plat-samsung/include/plat/dma-ops.h +@@ -43,7 +43,7 @@ struct samsung_dma_ops { + int (*started)(unsigned ch); + int (*flush)(unsigned ch); + int (*stop)(unsigned ch); +-}; ++} __no_const; + + extern void *samsung_dmadev_get_ops(void); + extern void *s3c_dma_get_ops(void); +diff --git a/arch/arm/plat-samsung/include/plat/ehci.h b/arch/arm/plat-samsung/include/plat/ehci.h +index 5f28cae..3d23723 100644 +--- a/arch/arm/plat-samsung/include/plat/ehci.h ++++ b/arch/arm/plat-samsung/include/plat/ehci.h +@@ -14,7 +14,7 @@ + struct s5p_ehci_platdata { + int (*phy_init)(struct platform_device *pdev, int type); + int (*phy_exit)(struct platform_device *pdev, int type); +-}; ++} __no_const; + + extern void s5p_ehci_set_platdata(struct s5p_ehci_platdata *pd); + +diff --git a/arch/avr32/include/asm/cache.h b/arch/avr32/include/asm/cache.h +index c3a58a1..78fbf54 100644 +--- a/arch/avr32/include/asm/cache.h ++++ b/arch/avr32/include/asm/cache.h +@@ -1,8 +1,10 @@ + #ifndef __ASM_AVR32_CACHE_H + #define __ASM_AVR32_CACHE_H + ++#include <linux/const.h> ++ + #define L1_CACHE_SHIFT 5 +-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + /* + * Memory returned by kmalloc() may be used for DMA, so we must make +diff --git a/arch/avr32/include/asm/elf.h b/arch/avr32/include/asm/elf.h +index 3b3159b..425ea94 100644 +--- a/arch/avr32/include/asm/elf.h ++++ b/arch/avr32/include/asm/elf.h +@@ -84,8 +84,14 @@ typedef struct user_fpu_struct elf_fpregset_t; + the loader. We need to make sure that it is out of the way of the program + that it will "exec", and that there is sufficient room for the brk. */ + +-#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) ++#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) + ++#ifdef CONFIG_PAX_ASLR ++#define PAX_ELF_ET_DYN_BASE 0x00001000UL ++ ++#define PAX_DELTA_MMAP_LEN 15 ++#define PAX_DELTA_STACK_LEN 15 ++#endif + + /* This yields a mask that user programs can use to figure out what + instruction set this CPU supports. This could be done in user space, +diff --git a/arch/avr32/include/asm/kmap_types.h b/arch/avr32/include/asm/kmap_types.h +index b7f5c68..556135c 100644 +--- a/arch/avr32/include/asm/kmap_types.h ++++ b/arch/avr32/include/asm/kmap_types.h +@@ -22,7 +22,8 @@ D(10) KM_IRQ0, + D(11) KM_IRQ1, + D(12) KM_SOFTIRQ0, + D(13) KM_SOFTIRQ1, +-D(14) KM_TYPE_NR ++D(14) KM_CLEARPAGE, ++D(15) KM_TYPE_NR + }; + + #undef D +diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c +index f7040a1..db9f300 100644 +--- a/arch/avr32/mm/fault.c ++++ b/arch/avr32/mm/fault.c +@@ -41,6 +41,23 @@ static inline int notify_page_fault(struct pt_regs *regs, int trap) + + int exception_trace = 1; + ++#ifdef CONFIG_PAX_PAGEEXEC ++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) ++{ ++ unsigned long i; ++ ++ printk(KERN_ERR "PAX: bytes at PC: "); ++ for (i = 0; i < 20; i++) { ++ unsigned char c; ++ if (get_user(c, (unsigned char *)pc+i)) ++ printk(KERN_CONT "???????? "); ++ else ++ printk(KERN_CONT "%02x ", c); ++ } ++ printk("\n"); ++} ++#endif ++ + /* + * This routine handles page faults. It determines the address and the + * problem, and then passes it off to one of the appropriate routines. +@@ -156,6 +173,16 @@ bad_area: + up_read(&mm->mmap_sem); + + if (user_mode(regs)) { ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++ if (mm->pax_flags & MF_PAX_PAGEEXEC) { ++ if (ecr == ECR_PROTECTION_X || ecr == ECR_TLB_MISS_X) { ++ pax_report_fault(regs, (void *)regs->pc, (void *)regs->sp); ++ do_group_exit(SIGKILL); ++ } ++ } ++#endif ++ + if (exception_trace && printk_ratelimit()) + printk("%s%s[%d]: segfault at %08lx pc %08lx " + "sp %08lx ecr %lu\n", +diff --git a/arch/blackfin/include/asm/cache.h b/arch/blackfin/include/asm/cache.h +index 568885a..f8008df 100644 +--- a/arch/blackfin/include/asm/cache.h ++++ b/arch/blackfin/include/asm/cache.h +@@ -7,6 +7,7 @@ + #ifndef __ARCH_BLACKFIN_CACHE_H + #define __ARCH_BLACKFIN_CACHE_H + ++#include <linux/const.h> + #include <linux/linkage.h> /* for asmlinkage */ + + /* +@@ -14,7 +15,7 @@ + * Blackfin loads 32 bytes for cache + */ + #define L1_CACHE_SHIFT 5 +-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + #define SMP_CACHE_BYTES L1_CACHE_BYTES + + #define ARCH_DMA_MINALIGN L1_CACHE_BYTES +diff --git a/arch/cris/include/arch-v10/arch/cache.h b/arch/cris/include/arch-v10/arch/cache.h +index aea2718..3639a60 100644 +--- a/arch/cris/include/arch-v10/arch/cache.h ++++ b/arch/cris/include/arch-v10/arch/cache.h +@@ -1,8 +1,9 @@ + #ifndef _ASM_ARCH_CACHE_H + #define _ASM_ARCH_CACHE_H + ++#include <linux/const.h> + /* Etrax 100LX have 32-byte cache-lines. */ +-#define L1_CACHE_BYTES 32 + #define L1_CACHE_SHIFT 5 ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + #endif /* _ASM_ARCH_CACHE_H */ +diff --git a/arch/cris/include/arch-v32/arch/cache.h b/arch/cris/include/arch-v32/arch/cache.h +index 1de779f..336fad3 100644 +--- a/arch/cris/include/arch-v32/arch/cache.h ++++ b/arch/cris/include/arch-v32/arch/cache.h +@@ -1,11 +1,12 @@ + #ifndef _ASM_CRIS_ARCH_CACHE_H + #define _ASM_CRIS_ARCH_CACHE_H + ++#include <linux/const.h> + #include <arch/hwregs/dma.h> + + /* A cache-line is 32 bytes. */ +-#define L1_CACHE_BYTES 32 + #define L1_CACHE_SHIFT 5 ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + #define __read_mostly __attribute__((__section__(".data.read_mostly"))) + +diff --git a/arch/frv/include/asm/atomic.h b/arch/frv/include/asm/atomic.h +index b86329d..6709906 100644 +--- a/arch/frv/include/asm/atomic.h ++++ b/arch/frv/include/asm/atomic.h +@@ -186,6 +186,16 @@ static inline void atomic64_dec(atomic64_t *v) + #define atomic64_cmpxchg(v, old, new) (__cmpxchg_64(old, new, &(v)->counter)) + #define atomic64_xchg(v, new) (__xchg_64(new, &(v)->counter)) + ++#define atomic64_read_unchecked(v) atomic64_read(v) ++#define atomic64_set_unchecked(v, i) atomic64_set((v), (i)) ++#define atomic64_add_unchecked(a, v) atomic64_add((a), (v)) ++#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v)) ++#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v)) ++#define atomic64_inc_unchecked(v) atomic64_inc(v) ++#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v) ++#define atomic64_dec_unchecked(v) atomic64_dec(v) ++#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n)) ++ + static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u) + { + int c, old; +diff --git a/arch/frv/include/asm/cache.h b/arch/frv/include/asm/cache.h +index 2797163..c2a401d 100644 +--- a/arch/frv/include/asm/cache.h ++++ b/arch/frv/include/asm/cache.h +@@ -12,10 +12,11 @@ + #ifndef __ASM_CACHE_H + #define __ASM_CACHE_H + ++#include <linux/const.h> + + /* bytes per L1 cache line */ + #define L1_CACHE_SHIFT (CONFIG_FRV_L1_CACHE_SHIFT) +-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + #define __cacheline_aligned __attribute__((aligned(L1_CACHE_BYTES))) + #define ____cacheline_aligned __attribute__((aligned(L1_CACHE_BYTES))) +diff --git a/arch/frv/include/asm/kmap_types.h b/arch/frv/include/asm/kmap_types.h +index f8e16b2..c73ff79 100644 +--- a/arch/frv/include/asm/kmap_types.h ++++ b/arch/frv/include/asm/kmap_types.h +@@ -23,6 +23,7 @@ enum km_type { + KM_IRQ1, + KM_SOFTIRQ0, + KM_SOFTIRQ1, ++ KM_CLEARPAGE, + KM_TYPE_NR + }; + +diff --git a/arch/frv/mm/elf-fdpic.c b/arch/frv/mm/elf-fdpic.c +index 385fd30..6c3d97e 100644 +--- a/arch/frv/mm/elf-fdpic.c ++++ b/arch/frv/mm/elf-fdpic.c +@@ -73,8 +73,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi + if (addr) { + addr = PAGE_ALIGN(addr); + vma = find_vma(current->mm, addr); +- if (TASK_SIZE - len >= addr && +- (!vma || addr + len <= vma->vm_start)) ++ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len)) + goto success; + } + +@@ -89,7 +88,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi + for (; vma; vma = vma->vm_next) { + if (addr > limit) + break; +- if (addr + len <= vma->vm_start) ++ if (check_heap_stack_gap(vma, addr, len)) + goto success; + addr = vma->vm_end; + } +@@ -104,7 +103,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi + for (; vma; vma = vma->vm_next) { + if (addr > limit) + break; +- if (addr + len <= vma->vm_start) ++ if (check_heap_stack_gap(vma, addr, len)) + goto success; + addr = vma->vm_end; + } +diff --git a/arch/h8300/include/asm/cache.h b/arch/h8300/include/asm/cache.h +index c635028..6d9445a 100644 +--- a/arch/h8300/include/asm/cache.h ++++ b/arch/h8300/include/asm/cache.h +@@ -1,8 +1,10 @@ + #ifndef __ARCH_H8300_CACHE_H + #define __ARCH_H8300_CACHE_H + ++#include <linux/const.h> ++ + /* bytes per L1 cache line */ +-#define L1_CACHE_BYTES 4 ++#define L1_CACHE_BYTES _AC(4,UL) + + /* m68k-elf-gcc 2.95.2 doesn't like these */ + +diff --git a/arch/hexagon/include/asm/cache.h b/arch/hexagon/include/asm/cache.h +index 0f01de2..d37d309 100644 +--- a/arch/hexagon/include/asm/cache.h ++++ b/arch/hexagon/include/asm/cache.h +@@ -21,9 +21,11 @@ + #ifndef __ASM_CACHE_H + #define __ASM_CACHE_H + ++#include <linux/const.h> ++ + /* Bytes per L1 cache line */ +-#define L1_CACHE_SHIFT (5) +-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) ++#define L1_CACHE_SHIFT 5 ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + #define __cacheline_aligned __aligned(L1_CACHE_BYTES) + #define ____cacheline_aligned __aligned(L1_CACHE_BYTES) +diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h +index 7d91166..88ab87e 100644 +--- a/arch/ia64/include/asm/atomic.h ++++ b/arch/ia64/include/asm/atomic.h +@@ -208,6 +208,16 @@ atomic64_add_negative (__s64 i, atomic64_t *v) + #define atomic64_inc(v) atomic64_add(1, (v)) + #define atomic64_dec(v) atomic64_sub(1, (v)) + ++#define atomic64_read_unchecked(v) atomic64_read(v) ++#define atomic64_set_unchecked(v, i) atomic64_set((v), (i)) ++#define atomic64_add_unchecked(a, v) atomic64_add((a), (v)) ++#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v)) ++#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v)) ++#define atomic64_inc_unchecked(v) atomic64_inc(v) ++#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v) ++#define atomic64_dec_unchecked(v) atomic64_dec(v) ++#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n)) ++ + /* Atomic operations are already serializing */ + #define smp_mb__before_atomic_dec() barrier() + #define smp_mb__after_atomic_dec() barrier() +diff --git a/arch/ia64/include/asm/cache.h b/arch/ia64/include/asm/cache.h +index 988254a..e1ee885 100644 +--- a/arch/ia64/include/asm/cache.h ++++ b/arch/ia64/include/asm/cache.h +@@ -1,6 +1,7 @@ + #ifndef _ASM_IA64_CACHE_H + #define _ASM_IA64_CACHE_H + ++#include <linux/const.h> + + /* + * Copyright (C) 1998-2000 Hewlett-Packard Co +@@ -9,7 +10,7 @@ + + /* Bytes per L1 (data) cache line. */ + #define L1_CACHE_SHIFT CONFIG_IA64_L1_CACHE_SHIFT +-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + #ifdef CONFIG_SMP + # define SMP_CACHE_SHIFT L1_CACHE_SHIFT +diff --git a/arch/ia64/include/asm/elf.h b/arch/ia64/include/asm/elf.h +index b5298eb..67c6e62 100644 +--- a/arch/ia64/include/asm/elf.h ++++ b/arch/ia64/include/asm/elf.h +@@ -42,6 +42,13 @@ + */ + #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x800000000UL) + ++#ifdef CONFIG_PAX_ASLR ++#define PAX_ELF_ET_DYN_BASE (current->personality == PER_LINUX32 ? 0x08048000UL : 0x4000000000000000UL) ++ ++#define PAX_DELTA_MMAP_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13) ++#define PAX_DELTA_STACK_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13) ++#endif ++ + #define PT_IA_64_UNWIND 0x70000001 + + /* IA-64 relocations: */ +diff --git a/arch/ia64/include/asm/pgalloc.h b/arch/ia64/include/asm/pgalloc.h +index 96a8d92..617a1cf 100644 +--- a/arch/ia64/include/asm/pgalloc.h ++++ b/arch/ia64/include/asm/pgalloc.h +@@ -39,6 +39,12 @@ pgd_populate(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud) + pgd_val(*pgd_entry) = __pa(pud); + } + ++static inline void ++pgd_populate_kernel(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud) ++{ ++ pgd_populate(mm, pgd_entry, pud); ++} ++ + static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) + { + return quicklist_alloc(0, GFP_KERNEL, NULL); +@@ -57,6 +63,12 @@ pud_populate(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd) + pud_val(*pud_entry) = __pa(pmd); + } + ++static inline void ++pud_populate_kernel(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd) ++{ ++ pud_populate(mm, pud_entry, pmd); ++} ++ + static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) + { + return quicklist_alloc(0, GFP_KERNEL, NULL); +diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h +index 815810c..d60bd4c 100644 +--- a/arch/ia64/include/asm/pgtable.h ++++ b/arch/ia64/include/asm/pgtable.h +@@ -12,7 +12,7 @@ + * David Mosberger-Tang <davidm(a)hpl.hp.com> + */ + +- ++#include <linux/const.h> + #include <asm/mman.h> + #include <asm/page.h> + #include <asm/processor.h> +@@ -142,6 +142,17 @@ + #define PAGE_READONLY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) + #define PAGE_COPY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) + #define PAGE_COPY_EXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RX) ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++# define PAGE_SHARED_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RW) ++# define PAGE_READONLY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) ++# define PAGE_COPY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) ++#else ++# define PAGE_SHARED_NOEXEC PAGE_SHARED ++# define PAGE_READONLY_NOEXEC PAGE_READONLY ++# define PAGE_COPY_NOEXEC PAGE_COPY ++#endif ++ + #define PAGE_GATE __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_X_RX) + #define PAGE_KERNEL __pgprot(__DIRTY_BITS | _PAGE_PL_0 | _PAGE_AR_RWX) + #define PAGE_KERNELRX __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_RX) +diff --git a/arch/ia64/include/asm/spinlock.h b/arch/ia64/include/asm/spinlock.h +index 54ff557..70c88b7 100644 +--- a/arch/ia64/include/asm/spinlock.h ++++ b/arch/ia64/include/asm/spinlock.h +@@ -71,7 +71,7 @@ static __always_inline void __ticket_spin_unlock(arch_spinlock_t *lock) + unsigned short *p = (unsigned short *)&lock->lock + 1, tmp; + + asm volatile ("ld2.bias %0=[%1]" : "=r"(tmp) : "r"(p)); +- ACCESS_ONCE(*p) = (tmp + 2) & ~1; ++ ACCESS_ONCE_RW(*p) = (tmp + 2) & ~1; + } + + static __always_inline void __ticket_spin_unlock_wait(arch_spinlock_t *lock) +diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h +index 449c8c0..432a3d2 100644 +--- a/arch/ia64/include/asm/uaccess.h ++++ b/arch/ia64/include/asm/uaccess.h +@@ -257,7 +257,7 @@ __copy_from_user (void *to, const void __user *from, unsigned long count) + const void *__cu_from = (from); \ + long __cu_len = (n); \ + \ +- if (__access_ok(__cu_to, __cu_len, get_fs())) \ ++ if (__cu_len > 0 && __cu_len <= INT_MAX && __access_ok(__cu_to, __cu_len, get_fs())) \ + __cu_len = __copy_user(__cu_to, (__force void __user *) __cu_from, __cu_len); \ + __cu_len; \ + }) +@@ -269,7 +269,7 @@ __copy_from_user (void *to, const void __user *from, unsigned long count) + long __cu_len = (n); \ + \ + __chk_user_ptr(__cu_from); \ +- if (__access_ok(__cu_from, __cu_len, get_fs())) \ ++ if (__cu_len > 0 && __cu_len <= INT_MAX && __access_ok(__cu_from, __cu_len, get_fs())) \ + __cu_len = __copy_user((__force void __user *) __cu_to, __cu_from, __cu_len); \ + __cu_len; \ + }) +diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c +index 24603be..948052d 100644 +--- a/arch/ia64/kernel/module.c ++++ b/arch/ia64/kernel/module.c +@@ -307,8 +307,7 @@ plt_target (struct plt_entry *plt) + void + module_free (struct module *mod, void *module_region) + { +- if (mod && mod->arch.init_unw_table && +- module_region == mod->module_init) { ++ if (mod && mod->arch.init_unw_table && module_region == mod->module_init_rx) { + unw_remove_unwind_table(mod->arch.init_unw_table); + mod->arch.init_unw_table = NULL; + } +@@ -494,15 +493,39 @@ module_frob_arch_sections (Elf_Ehdr *ehdr, Elf_Shdr *sechdrs, char *secstrings, + } + + static inline int ++in_init_rx (const struct module *mod, uint64_t addr) ++{ ++ return addr - (uint64_t) mod->module_init_rx < mod->init_size_rx; ++} ++ ++static inline int ++in_init_rw (const struct module *mod, uint64_t addr) ++{ ++ return addr - (uint64_t) mod->module_init_rw < mod->init_size_rw; ++} ++ ++static inline int + in_init (const struct module *mod, uint64_t addr) + { +- return addr - (uint64_t) mod->module_init < mod->init_size; ++ return in_init_rx(mod, addr) || in_init_rw(mod, addr); ++} ++ ++static inline int ++in_core_rx (const struct module *mod, uint64_t addr) ++{ ++ return addr - (uint64_t) mod->module_core_rx < mod->core_size_rx; ++} ++ ++static inline int ++in_core_rw (const struct module *mod, uint64_t addr) ++{ ++ return addr - (uint64_t) mod->module_core_rw < mod->core_size_rw; + } + + static inline int + in_core (const struct module *mod, uint64_t addr) + { +- return addr - (uint64_t) mod->module_core < mod->core_size; ++ return in_core_rx(mod, addr) || in_core_rw(mod, addr); + } + + static inline int +@@ -685,7 +708,14 @@ do_reloc (struct module *mod, uint8_t r_type, Elf64_Sym *sym, uint64_t addend, + break; + + case RV_BDREL: +- val -= (uint64_t) (in_init(mod, val) ? mod->module_init : mod->module_core); ++ if (in_init_rx(mod, val)) ++ val -= (uint64_t) mod->module_init_rx; ++ else if (in_init_rw(mod, val)) ++ val -= (uint64_t) mod->module_init_rw; ++ else if (in_core_rx(mod, val)) ++ val -= (uint64_t) mod->module_core_rx; ++ else if (in_core_rw(mod, val)) ++ val -= (uint64_t) mod->module_core_rw; + break; + + case RV_LTV: +@@ -820,15 +850,15 @@ apply_relocate_add (Elf64_Shdr *sechdrs, const char *strtab, unsigned int symind + * addresses have been selected... + */ + uint64_t gp; +- if (mod->core_size > MAX_LTOFF) ++ if (mod->core_size_rx + mod->core_size_rw > MAX_LTOFF) + /* + * This takes advantage of fact that SHF_ARCH_SMALL gets allocated + * at the end of the module. + */ +- gp = mod->core_size - MAX_LTOFF / 2; ++ gp = mod->core_size_rx + mod->core_size_rw - MAX_LTOFF / 2; + else +- gp = mod->core_size / 2; +- gp = (uint64_t) mod->module_core + ((gp + 7) & -8); ++ gp = (mod->core_size_rx + mod->core_size_rw) / 2; ++ gp = (uint64_t) mod->module_core_rx + ((gp + 7) & -8); + mod->arch.gp = gp; + DEBUGP("%s: placing gp at 0x%lx\n", __func__, gp); + } +diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c +index 609d500..7dde2a8 100644 +--- a/arch/ia64/kernel/sys_ia64.c ++++ b/arch/ia64/kernel/sys_ia64.c +@@ -43,6 +43,13 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len + if (REGION_NUMBER(addr) == RGN_HPAGE) + addr = 0; + #endif ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ addr = mm->free_area_cache; ++ else ++#endif ++ + if (!addr) + addr = mm->free_area_cache; + +@@ -61,14 +68,14 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len + for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { + /* At this point: (!vma || addr < vma->vm_end). */ + if (TASK_SIZE - len < addr || RGN_MAP_LIMIT - len < REGION_OFFSET(addr)) { +- if (start_addr != TASK_UNMAPPED_BASE) { ++ if (start_addr != mm->mmap_base) { + /* Start a new search --- just in case we missed some holes. */ +- addr = TASK_UNMAPPED_BASE; ++ addr = mm->mmap_base; + goto full_search; + } + return -ENOMEM; + } +- if (!vma || addr + len <= vma->vm_start) { ++ if (check_heap_stack_gap(vma, addr, len)) { + /* Remember the address where we stopped this search: */ + mm->free_area_cache = addr + len; + return addr; +diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S +index 0ccb28f..8992469 100644 +--- a/arch/ia64/kernel/vmlinux.lds.S ++++ b/arch/ia64/kernel/vmlinux.lds.S +@@ -198,7 +198,7 @@ SECTIONS { + /* Per-cpu data: */ + . = ALIGN(PERCPU_PAGE_SIZE); + PERCPU_VADDR(SMP_CACHE_BYTES, PERCPU_ADDR, :percpu) +- __phys_per_cpu_start = __per_cpu_load; ++ __phys_per_cpu_start = per_cpu_load; + /* + * ensure percpu data fits + * into percpu page size +diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c +index 02d29c2..ea893df 100644 +--- a/arch/ia64/mm/fault.c ++++ b/arch/ia64/mm/fault.c +@@ -72,6 +72,23 @@ mapped_kernel_page_is_present (unsigned long address) + return pte_present(pte); + } + ++#ifdef CONFIG_PAX_PAGEEXEC ++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) ++{ ++ unsigned long i; ++ ++ printk(KERN_ERR "PAX: bytes at PC: "); ++ for (i = 0; i < 8; i++) { ++ unsigned int c; ++ if (get_user(c, (unsigned int *)pc+i)) ++ printk(KERN_CONT "???????? "); ++ else ++ printk(KERN_CONT "%08x ", c); ++ } ++ printk("\n"); ++} ++#endif ++ + void __kprobes + ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *regs) + { +@@ -145,9 +162,23 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re + mask = ( (((isr >> IA64_ISR_X_BIT) & 1UL) << VM_EXEC_BIT) + | (((isr >> IA64_ISR_W_BIT) & 1UL) << VM_WRITE_BIT)); + +- if ((vma->vm_flags & mask) != mask) ++ if ((vma->vm_flags & mask) != mask) { ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++ if (!(vma->vm_flags & VM_EXEC) && (mask & VM_EXEC)) { ++ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->cr_iip) ++ goto bad_area; ++ ++ up_read(&mm->mmap_sem); ++ pax_report_fault(regs, (void *)regs->cr_iip, (void *)regs->r12); ++ do_group_exit(SIGKILL); ++ } ++#endif ++ + goto bad_area; + ++ } ++ + /* + * If for any reason at all we couldn't handle the fault, make + * sure we exit gracefully rather than endlessly redo the +diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c +index 5ca674b..e0e1b70 100644 +--- a/arch/ia64/mm/hugetlbpage.c ++++ b/arch/ia64/mm/hugetlbpage.c +@@ -171,7 +171,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u + /* At this point: (!vmm || addr < vmm->vm_end). */ + if (REGION_OFFSET(addr) + len > RGN_MAP_LIMIT) + return -ENOMEM; +- if (!vmm || (addr + len) <= vmm->vm_start) ++ if (check_heap_stack_gap(vmm, addr, len)) + return addr; + addr = ALIGN(vmm->vm_end, HPAGE_SIZE); + } +diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c +index 0eab454..bd794f2 100644 +--- a/arch/ia64/mm/init.c ++++ b/arch/ia64/mm/init.c +@@ -120,6 +120,19 @@ ia64_init_addr_space (void) + vma->vm_start = current->thread.rbs_bot & PAGE_MASK; + vma->vm_end = vma->vm_start + PAGE_SIZE; + vma->vm_flags = VM_DATA_DEFAULT_FLAGS|VM_GROWSUP|VM_ACCOUNT; ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++ if (current->mm->pax_flags & MF_PAX_PAGEEXEC) { ++ vma->vm_flags &= ~VM_EXEC; ++ ++#ifdef CONFIG_PAX_MPROTECT ++ if (current->mm->pax_flags & MF_PAX_MPROTECT) ++ vma->vm_flags &= ~VM_MAYEXEC; ++#endif ++ ++ } ++#endif ++ + vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); + down_write(&current->mm->mmap_sem); + if (insert_vm_struct(current->mm, vma)) { +diff --git a/arch/m32r/include/asm/cache.h b/arch/m32r/include/asm/cache.h +index 40b3ee9..8c2c112 100644 +--- a/arch/m32r/include/asm/cache.h ++++ b/arch/m32r/include/asm/cache.h +@@ -1,8 +1,10 @@ + #ifndef _ASM_M32R_CACHE_H + #define _ASM_M32R_CACHE_H + ++#include <linux/const.h> ++ + /* L1 cache line size */ + #define L1_CACHE_SHIFT 4 +-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + #endif /* _ASM_M32R_CACHE_H */ +diff --git a/arch/m32r/lib/usercopy.c b/arch/m32r/lib/usercopy.c +index 82abd15..d95ae5d 100644 +--- a/arch/m32r/lib/usercopy.c ++++ b/arch/m32r/lib/usercopy.c +@@ -14,6 +14,9 @@ + unsigned long + __generic_copy_to_user(void __user *to, const void *from, unsigned long n) + { ++ if ((long)n < 0) ++ return n; ++ + prefetch(from); + if (access_ok(VERIFY_WRITE, to, n)) + __copy_user(to,from,n); +@@ -23,6 +26,9 @@ __generic_copy_to_user(void __user *to, const void *from, unsigned long n) + unsigned long + __generic_copy_from_user(void *to, const void __user *from, unsigned long n) + { ++ if ((long)n < 0) ++ return n; ++ + prefetchw(to); + if (access_ok(VERIFY_READ, from, n)) + __copy_user_zeroing(to,from,n); +diff --git a/arch/m68k/include/asm/cache.h b/arch/m68k/include/asm/cache.h +index 0395c51..5f26031 100644 +--- a/arch/m68k/include/asm/cache.h ++++ b/arch/m68k/include/asm/cache.h +@@ -4,9 +4,11 @@ + #ifndef __ARCH_M68K_CACHE_H + #define __ARCH_M68K_CACHE_H + ++#include <linux/const.h> ++ + /* bytes per L1 cache line */ + #define L1_CACHE_SHIFT 4 +-#define L1_CACHE_BYTES (1<< L1_CACHE_SHIFT) ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + #define ARCH_DMA_MINALIGN L1_CACHE_BYTES + +diff --git a/arch/microblaze/include/asm/cache.h b/arch/microblaze/include/asm/cache.h +index 4efe96a..60e8699 100644 +--- a/arch/microblaze/include/asm/cache.h ++++ b/arch/microblaze/include/asm/cache.h +@@ -13,11 +13,12 @@ + #ifndef _ASM_MICROBLAZE_CACHE_H + #define _ASM_MICROBLAZE_CACHE_H + ++#include <linux/const.h> + #include <asm/registers.h> + + #define L1_CACHE_SHIFT 5 + /* word-granular cache in microblaze */ +-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + #define SMP_CACHE_BYTES L1_CACHE_BYTES + +diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h +index 3f4c5cb..3439c6e 100644 +--- a/arch/mips/include/asm/atomic.h ++++ b/arch/mips/include/asm/atomic.h +@@ -21,6 +21,10 @@ + #include <asm/cmpxchg.h> + #include <asm/war.h> + ++#ifdef CONFIG_GENERIC_ATOMIC64 ++#include <asm-generic/atomic64.h> ++#endif ++ + #define ATOMIC_INIT(i) { (i) } + + /* +@@ -765,6 +769,16 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u) + */ + #define atomic64_add_negative(i, v) (atomic64_add_return(i, (v)) < 0) + ++#define atomic64_read_unchecked(v) atomic64_read(v) ++#define atomic64_set_unchecked(v, i) atomic64_set((v), (i)) ++#define atomic64_add_unchecked(a, v) atomic64_add((a), (v)) ++#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v)) ++#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v)) ++#define atomic64_inc_unchecked(v) atomic64_inc(v) ++#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v) ++#define atomic64_dec_unchecked(v) atomic64_dec(v) ++#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n)) ++ + #endif /* CONFIG_64BIT */ + + /* +diff --git a/arch/mips/include/asm/cache.h b/arch/mips/include/asm/cache.h +index b4db69f..8f3b093 100644 +--- a/arch/mips/include/asm/cache.h ++++ b/arch/mips/include/asm/cache.h +@@ -9,10 +9,11 @@ + #ifndef _ASM_CACHE_H + #define _ASM_CACHE_H + ++#include <linux/const.h> + #include <kmalloc.h> + + #define L1_CACHE_SHIFT CONFIG_MIPS_L1_CACHE_SHIFT +-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + #define SMP_CACHE_SHIFT L1_CACHE_SHIFT + #define SMP_CACHE_BYTES L1_CACHE_BYTES +diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h +index 455c0ac..ad65fbe 100644 +--- a/arch/mips/include/asm/elf.h ++++ b/arch/mips/include/asm/elf.h +@@ -372,13 +372,16 @@ extern const char *__elf_platform; + #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) + #endif + ++#ifdef CONFIG_PAX_ASLR ++#define PAX_ELF_ET_DYN_BASE (TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL) ++ ++#define PAX_DELTA_MMAP_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) ++#define PAX_DELTA_STACK_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) ++#endif ++ + #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 + struct linux_binprm; + extern int arch_setup_additional_pages(struct linux_binprm *bprm, + int uses_interp); + +-struct mm_struct; +-extern unsigned long arch_randomize_brk(struct mm_struct *mm); +-#define arch_randomize_brk arch_randomize_brk +- + #endif /* _ASM_ELF_H */ +diff --git a/arch/mips/include/asm/exec.h b/arch/mips/include/asm/exec.h +index c1f6afa..38cc6e9 100644 +--- a/arch/mips/include/asm/exec.h ++++ b/arch/mips/include/asm/exec.h +@@ -12,6 +12,6 @@ + #ifndef _ASM_EXEC_H + #define _ASM_EXEC_H + +-extern unsigned long arch_align_stack(unsigned long sp); ++#define arch_align_stack(x) ((x) & ~0xfUL) + + #endif /* _ASM_EXEC_H */ +diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h +index da9bd7d..91aa7ab 100644 +--- a/arch/mips/include/asm/page.h ++++ b/arch/mips/include/asm/page.h +@@ -98,7 +98,7 @@ extern void copy_user_highpage(struct page *to, struct page *from, + #ifdef CONFIG_CPU_MIPS32 + typedef struct { unsigned long pte_low, pte_high; } pte_t; + #define pte_val(x) ((x).pte_low | ((unsigned long long)(x).pte_high << 32)) +- #define __pte(x) ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; }) ++ #define __pte(x) ({ pte_t __pte = {(x), (x) >> 32}; __pte; }) + #else + typedef struct { unsigned long long pte; } pte_t; + #define pte_val(x) ((x).pte) +diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h +index 881d18b..cea38bc 100644 +--- a/arch/mips/include/asm/pgalloc.h ++++ b/arch/mips/include/asm/pgalloc.h +@@ -37,6 +37,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) + { + set_pud(pud, __pud((unsigned long)pmd)); + } ++ ++static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) ++{ ++ pud_populate(mm, pud, pmd); ++} + #endif + + /* +diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h +index 0d85d8e..ec71487 100644 +--- a/arch/mips/include/asm/thread_info.h ++++ b/arch/mips/include/asm/thread_info.h +@@ -123,6 +123,8 @@ register struct thread_info *__current_thread_info __asm__("$28"); + #define TIF_32BIT_ADDR 23 /* 32-bit address space (o32/n32) */ + #define TIF_FPUBOUND 24 /* thread bound to FPU-full CPU set */ + #define TIF_LOAD_WATCH 25 /* If set, load watch registers */ ++/* li takes a 32bit immediate */ ++#define TIF_GRSEC_SETXID 29 /* update credentials on syscall entry/exit */ + #define TIF_SYSCALL_TRACE 31 /* syscall trace active */ + + #ifdef CONFIG_MIPS32_O32 +@@ -146,15 +148,18 @@ register struct thread_info *__current_thread_info __asm__("$28"); + #define _TIF_32BIT_ADDR (1<<TIF_32BIT_ADDR) + #define _TIF_FPUBOUND (1<<TIF_FPUBOUND) + #define _TIF_LOAD_WATCH (1<<TIF_LOAD_WATCH) ++#define _TIF_GRSEC_SETXID (1<<TIF_GRSEC_SETXID) ++ ++#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_GRSEC_SETXID) + + /* work to do in syscall_trace_leave() */ +-#define _TIF_WORK_SYSCALL_EXIT (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT) ++#define _TIF_WORK_SYSCALL_EXIT (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_GRSEC_SETXID) + + /* work to do on interrupt/exception return */ + #define _TIF_WORK_MASK (0x0000ffef & \ + ~(_TIF_SECCOMP | _TIF_SYSCALL_AUDIT)) + /* work to do on any return to u-space */ +-#define _TIF_ALLWORK_MASK (0x8000ffff & ~_TIF_SECCOMP) ++#define _TIF_ALLWORK_MASK ((0x8000ffff & ~_TIF_SECCOMP) | _TIF_GRSEC_SETXID) + + #endif /* __KERNEL__ */ + +diff --git a/arch/mips/kernel/binfmt_elfn32.c b/arch/mips/kernel/binfmt_elfn32.c +index 9fdd8bc..4bd7f1a 100644 +--- a/arch/mips/kernel/binfmt_elfn32.c ++++ b/arch/mips/kernel/binfmt_elfn32.c +@@ -50,6 +50,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; + #undef ELF_ET_DYN_BASE + #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2) + ++#ifdef CONFIG_PAX_ASLR ++#define PAX_ELF_ET_DYN_BASE (TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL) ++ ++#define PAX_DELTA_MMAP_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) ++#define PAX_DELTA_STACK_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) ++#endif ++ + #include <asm/processor.h> + #include <linux/module.h> + #include <linux/elfcore.h> +diff --git a/arch/mips/kernel/binfmt_elfo32.c b/arch/mips/kernel/binfmt_elfo32.c +index ff44823..97f8906 100644 +--- a/arch/mips/kernel/binfmt_elfo32.c ++++ b/arch/mips/kernel/binfmt_elfo32.c +@@ -52,6 +52,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; + #undef ELF_ET_DYN_BASE + #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2) + ++#ifdef CONFIG_PAX_ASLR ++#define PAX_ELF_ET_DYN_BASE (TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL) ++ ++#define PAX_DELTA_MMAP_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) ++#define PAX_DELTA_STACK_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) ++#endif ++ + #include <asm/processor.h> + + /* +diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c +index e9a5fd7..378809a 100644 +--- a/arch/mips/kernel/process.c ++++ b/arch/mips/kernel/process.c +@@ -480,15 +480,3 @@ unsigned long get_wchan(struct task_struct *task) + out: + return pc; + } +- +-/* +- * Don't forget that the stack pointer must be aligned on a 8 bytes +- * boundary for 32-bits ABI and 16 bytes for 64-bits ABI. +- */ +-unsigned long arch_align_stack(unsigned long sp) +-{ +- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) +- sp -= get_random_int() & ~PAGE_MASK; +- +- return sp & ALMASK; +-} +diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c +index 7c24c29..e2f1981 100644 +--- a/arch/mips/kernel/ptrace.c ++++ b/arch/mips/kernel/ptrace.c +@@ -528,6 +528,10 @@ static inline int audit_arch(void) + return arch; + } + ++#ifdef CONFIG_GRKERNSEC_SETXID ++extern void gr_delayed_cred_worker(void); ++#endif ++ + /* + * Notification of system call entry/exit + * - triggered by current->work.syscall_trace +@@ -537,6 +541,11 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs) + /* do the secure computing check first */ + secure_computing(regs->regs[2]); + ++#ifdef CONFIG_GRKERNSEC_SETXID ++ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID))) ++ gr_delayed_cred_worker(); ++#endif ++ + if (!(current->ptrace & PT_PTRACED)) + goto out; + +diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S +index a632bc1..0b77c7c 100644 +--- a/arch/mips/kernel/scall32-o32.S ++++ b/arch/mips/kernel/scall32-o32.S +@@ -52,7 +52,7 @@ NESTED(handle_sys, PT_SIZE, sp) + + stack_done: + lw t0, TI_FLAGS($28) # syscall tracing enabled? +- li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT ++ li t1, _TIF_SYSCALL_WORK + and t0, t1 + bnez t0, syscall_trace_entry # -> yes + +diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S +index 3b5a5e9..e1ee86d 100644 +--- a/arch/mips/kernel/scall64-64.S ++++ b/arch/mips/kernel/scall64-64.S +@@ -54,7 +54,7 @@ NESTED(handle_sys64, PT_SIZE, sp) + + sd a3, PT_R26(sp) # save a3 for syscall restarting + +- li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT ++ li t1, _TIF_SYSCALL_WORK + LONG_L t0, TI_FLAGS($28) # syscall tracing enabled? + and t0, t1, t0 + bnez t0, syscall_trace_entry +diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S +index 6be6f70..1859577 100644 +--- a/arch/mips/kernel/scall64-n32.S ++++ b/arch/mips/kernel/scall64-n32.S +@@ -53,7 +53,7 @@ NESTED(handle_sysn32, PT_SIZE, sp) + + sd a3, PT_R26(sp) # save a3 for syscall restarting + +- li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT ++ li t1, _TIF_SYSCALL_WORK + LONG_L t0, TI_FLAGS($28) # syscall tracing enabled? + and t0, t1, t0 + bnez t0, n32_syscall_trace_entry +diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S +index 5422855..74e63a3 100644 +--- a/arch/mips/kernel/scall64-o32.S ++++ b/arch/mips/kernel/scall64-o32.S +@@ -81,7 +81,7 @@ NESTED(handle_sys, PT_SIZE, sp) + PTR 4b, bad_stack + .previous + +- li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT ++ li t1, _TIF_SYSCALL_WORK + LONG_L t0, TI_FLAGS($28) # syscall tracing enabled? + and t0, t1, t0 + bnez t0, trace_a_syscall +diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c +index c14f6df..537e729 100644 +--- a/arch/mips/mm/fault.c ++++ b/arch/mips/mm/fault.c +@@ -27,6 +27,23 @@ + #include <asm/highmem.h> /* For VMALLOC_END */ + #include <linux/kdebug.h> + ++#ifdef CONFIG_PAX_PAGEEXEC ++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) ++{ ++ unsigned long i; ++ ++ printk(KERN_ERR "PAX: bytes at PC: "); ++ for (i = 0; i < 5; i++) { ++ unsigned int c; ++ if (get_user(c, (unsigned int *)pc+i)) ++ printk(KERN_CONT "???????? "); ++ else ++ printk(KERN_CONT "%08x ", c); ++ } ++ printk("\n"); ++} ++#endif ++ + /* + * This routine handles page faults. It determines the address, + * and the problem, and then passes it off to one of the appropriate +diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c +index 302d779..7d35bf8 100644 +--- a/arch/mips/mm/mmap.c ++++ b/arch/mips/mm/mmap.c +@@ -95,6 +95,11 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp, + do_color_align = 1; + + /* requesting a specific address */ ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (!(current->mm->pax_flags & MF_PAX_RANDMMAP)) ++#endif ++ + if (addr) { + if (do_color_align) + addr = COLOUR_ALIGN(addr, pgoff); +@@ -102,8 +107,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp, + addr = PAGE_ALIGN(addr); + + vma = find_vma(mm, addr); +- if (TASK_SIZE - len >= addr && +- (!vma || addr + len <= vma->vm_start)) ++ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vmm, addr, len)) + return addr; + } + +@@ -118,7 +122,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp, + /* At this point: (!vma || addr < vma->vm_end). */ + if (TASK_SIZE - len < addr) + return -ENOMEM; +- if (!vma || addr + len <= vma->vm_start) ++ if (check_heap_stack_gap(vmm, addr, len)) + return addr; + addr = vma->vm_end; + if (do_color_align) +@@ -145,7 +149,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp, + /* make sure it can fit in the remaining address space */ + if (likely(addr > len)) { + vma = find_vma(mm, addr - len); +- if (!vma || addr <= vma->vm_start) { ++ if (check_heap_stack_gap(vmm, addr - len, len)) + /* cache the address as a hint for next time */ + return mm->free_area_cache = addr - len; + } +@@ -165,7 +169,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp, + * return with success: + */ + vma = find_vma(mm, addr); +- if (likely(!vma || addr + len <= vma->vm_start)) { ++ if (check_heap_stack_gap(vmm, addr, len)) { + /* cache the address as a hint for next time */ + return mm->free_area_cache = addr; + } +@@ -242,30 +246,3 @@ void arch_pick_mmap_layout(struct mm_struct *mm) + mm->unmap_area = arch_unmap_area_topdown; + } + } +- +-static inline unsigned long brk_rnd(void) +-{ +- unsigned long rnd = get_random_int(); +- +- rnd = rnd << PAGE_SHIFT; +- /* 8MB for 32bit, 256MB for 64bit */ +- if (TASK_IS_32BIT_ADDR) +- rnd = rnd & 0x7ffffful; +- else +- rnd = rnd & 0xffffffful; +- +- return rnd; +-} +- +-unsigned long arch_randomize_brk(struct mm_struct *mm) +-{ +- unsigned long base = mm->brk; +- unsigned long ret; +- +- ret = PAGE_ALIGN(base + brk_rnd()); +- +- if (ret < mm->brk) +- return mm->brk; +- +- return ret; +-} +diff --git a/arch/mn10300/proc-mn103e010/include/proc/cache.h b/arch/mn10300/proc-mn103e010/include/proc/cache.h +index 967d144..db12197 100644 +--- a/arch/mn10300/proc-mn103e010/include/proc/cache.h ++++ b/arch/mn10300/proc-mn103e010/include/proc/cache.h +@@ -11,12 +11,14 @@ + #ifndef _ASM_PROC_CACHE_H + #define _ASM_PROC_CACHE_H + ++#include <linux/const.h> ++ + /* L1 cache */ + + #define L1_CACHE_NWAYS 4 /* number of ways in caches */ + #define L1_CACHE_NENTRIES 256 /* number of entries in each way */ +-#define L1_CACHE_BYTES 16 /* bytes per entry */ + #define L1_CACHE_SHIFT 4 /* shift for bytes per entry */ ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) /* bytes per entry */ + #define L1_CACHE_WAYDISP 0x1000 /* displacement of one way from the next */ + + #define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */ +diff --git a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h b/arch/mn10300/proc-mn2ws0050/include/proc/cache.h +index bcb5df2..84fabd2 100644 +--- a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h ++++ b/arch/mn10300/proc-mn2ws0050/include/proc/cache.h +@@ -16,13 +16,15 @@ + #ifndef _ASM_PROC_CACHE_H + #define _ASM_PROC_CACHE_H + ++#include <linux/const.h> ++ + /* + * L1 cache + */ + #define L1_CACHE_NWAYS 4 /* number of ways in caches */ + #define L1_CACHE_NENTRIES 128 /* number of entries in each way */ +-#define L1_CACHE_BYTES 32 /* bytes per entry */ + #define L1_CACHE_SHIFT 5 /* shift for bytes per entry */ ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) /* bytes per entry */ + #define L1_CACHE_WAYDISP 0x1000 /* distance from one way to the next */ + + #define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */ +diff --git a/arch/openrisc/include/asm/cache.h b/arch/openrisc/include/asm/cache.h +index 4ce7a01..449202a 100644 +--- a/arch/openrisc/include/asm/cache.h ++++ b/arch/openrisc/include/asm/cache.h +@@ -19,11 +19,13 @@ + #ifndef __ASM_OPENRISC_CACHE_H + #define __ASM_OPENRISC_CACHE_H + ++#include <linux/const.h> ++ + /* FIXME: How can we replace these with values from the CPU... + * they shouldn't be hard-coded! + */ + +-#define L1_CACHE_BYTES 16 + #define L1_CACHE_SHIFT 4 ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + #endif /* __ASM_OPENRISC_CACHE_H */ +diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h +index 6c6defc..d30653d 100644 +--- a/arch/parisc/include/asm/atomic.h ++++ b/arch/parisc/include/asm/atomic.h +@@ -229,6 +229,16 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u) + + #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) + ++#define atomic64_read_unchecked(v) atomic64_read(v) ++#define atomic64_set_unchecked(v, i) atomic64_set((v), (i)) ++#define atomic64_add_unchecked(a, v) atomic64_add((a), (v)) ++#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v)) ++#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v)) ++#define atomic64_inc_unchecked(v) atomic64_inc(v) ++#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v) ++#define atomic64_dec_unchecked(v) atomic64_dec(v) ++#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n)) ++ + #endif /* !CONFIG_64BIT */ + + +diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h +index 47f11c7..3420df2 100644 +--- a/arch/parisc/include/asm/cache.h ++++ b/arch/parisc/include/asm/cache.h +@@ -5,6 +5,7 @@ + #ifndef __ARCH_PARISC_CACHE_H + #define __ARCH_PARISC_CACHE_H + ++#include <linux/const.h> + + /* + * PA 2.0 processors have 64-byte cachelines; PA 1.1 processors have +@@ -15,13 +16,13 @@ + * just ruin performance. + */ + #ifdef CONFIG_PA20 +-#define L1_CACHE_BYTES 64 + #define L1_CACHE_SHIFT 6 + #else +-#define L1_CACHE_BYTES 32 + #define L1_CACHE_SHIFT 5 + #endif + ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) ++ + #ifndef __ASSEMBLY__ + + #define SMP_CACHE_BYTES L1_CACHE_BYTES +diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h +index 19f6cb1..6c78cf2 100644 +--- a/arch/parisc/include/asm/elf.h ++++ b/arch/parisc/include/asm/elf.h +@@ -342,6 +342,13 @@ struct pt_regs; /* forward declaration... */ + + #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x01000000) + ++#ifdef CONFIG_PAX_ASLR ++#define PAX_ELF_ET_DYN_BASE 0x10000UL ++ ++#define PAX_DELTA_MMAP_LEN 16 ++#define PAX_DELTA_STACK_LEN 16 ++#endif ++ + /* This yields a mask that user programs can use to figure out what + instruction set this CPU supports. This could be done in user space, + but it's not easy, and we've already done it here. */ +diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h +index fc987a1..6e068ef 100644 +--- a/arch/parisc/include/asm/pgalloc.h ++++ b/arch/parisc/include/asm/pgalloc.h +@@ -61,6 +61,11 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd) + (__u32)(__pa((unsigned long)pmd) >> PxD_VALUE_SHIFT)); + } + ++static inline void pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd) ++{ ++ pgd_populate(mm, pgd, pmd); ++} ++ + static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) + { + pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT, +@@ -93,6 +98,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) + #define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); }) + #define pmd_free(mm, x) do { } while (0) + #define pgd_populate(mm, pmd, pte) BUG() ++#define pgd_populate_kernel(mm, pmd, pte) BUG() + + #endif + +diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h +index ee99f23..802b0a1 100644 +--- a/arch/parisc/include/asm/pgtable.h ++++ b/arch/parisc/include/asm/pgtable.h +@@ -212,6 +212,17 @@ struct vm_area_struct; + #define PAGE_EXECREAD __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_EXEC |_PAGE_ACCESSED) + #define PAGE_COPY PAGE_EXECREAD + #define PAGE_RWX __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_EXEC |_PAGE_ACCESSED) ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_ACCESSED) ++# define PAGE_COPY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED) ++# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED) ++#else ++# define PAGE_SHARED_NOEXEC PAGE_SHARED ++# define PAGE_COPY_NOEXEC PAGE_COPY ++# define PAGE_READONLY_NOEXEC PAGE_READONLY ++#endif ++ + #define PAGE_KERNEL __pgprot(_PAGE_KERNEL) + #define PAGE_KERNEL_EXEC __pgprot(_PAGE_KERNEL_EXEC) + #define PAGE_KERNEL_RWX __pgprot(_PAGE_KERNEL_RWX) +diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h +index 9ac0660..6ed15c4 100644 +--- a/arch/parisc/include/asm/uaccess.h ++++ b/arch/parisc/include/asm/uaccess.h +@@ -252,10 +252,10 @@ static inline unsigned long __must_check copy_from_user(void *to, + const void __user *from, + unsigned long n) + { +- int sz = __compiletime_object_size(to); ++ size_t sz = __compiletime_object_size(to); + int ret = -EFAULT; + +- if (likely(sz == -1 || !__builtin_constant_p(n) || sz >= n)) ++ if (likely(sz == (size_t)-1 || !__builtin_constant_p(n) || sz >= n)) + ret = __copy_from_user(to, from, n); + else + copy_from_user_overflow(); +diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c +index 5e34ccf..672bc9c 100644 +--- a/arch/parisc/kernel/module.c ++++ b/arch/parisc/kernel/module.c +@@ -98,16 +98,38 @@ + + /* three functions to determine where in the module core + * or init pieces the location is */ ++static inline int in_init_rx(struct module *me, void *loc) ++{ ++ return (loc >= me->module_init_rx && ++ loc < (me->module_init_rx + me->init_size_rx)); ++} ++ ++static inline int in_init_rw(struct module *me, void *loc) ++{ ++ return (loc >= me->module_init_rw && ++ loc < (me->module_init_rw + me->init_size_rw)); ++} ++ + static inline int in_init(struct module *me, void *loc) + { +- return (loc >= me->module_init && +- loc <= (me->module_init + me->init_size)); ++ return in_init_rx(me, loc) || in_init_rw(me, loc); ++} ++ ++static inline int in_core_rx(struct module *me, void *loc) ++{ ++ return (loc >= me->module_core_rx && ++ loc < (me->module_core_rx + me->core_size_rx)); ++} ++ ++static inline int in_core_rw(struct module *me, void *loc) ++{ ++ return (loc >= me->module_core_rw && ++ loc < (me->module_core_rw + me->core_size_rw)); + } + + static inline int in_core(struct module *me, void *loc) + { +- return (loc >= me->module_core && +- loc <= (me->module_core + me->core_size)); ++ return in_core_rx(me, loc) || in_core_rw(me, loc); + } + + static inline int in_local(struct module *me, void *loc) +@@ -373,13 +395,13 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr, + } + + /* align things a bit */ +- me->core_size = ALIGN(me->core_size, 16); +- me->arch.got_offset = me->core_size; +- me->core_size += gots * sizeof(struct got_entry); ++ me->core_size_rw = ALIGN(me->core_size_rw, 16); ++ me->arch.got_offset = me->core_size_rw; ++ me->core_size_rw += gots * sizeof(struct got_entry); + +- me->core_size = ALIGN(me->core_size, 16); +- me->arch.fdesc_offset = me->core_size; +- me->core_size += fdescs * sizeof(Elf_Fdesc); ++ me->core_size_rw = ALIGN(me->core_size_rw, 16); ++ me->arch.fdesc_offset = me->core_size_rw; ++ me->core_size_rw += fdescs * sizeof(Elf_Fdesc); + + me->arch.got_max = gots; + me->arch.fdesc_max = fdescs; +@@ -397,7 +419,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend) + + BUG_ON(value == 0); + +- got = me->module_core + me->arch.got_offset; ++ got = me->module_core_rw + me->arch.got_offset; + for (i = 0; got[i].addr; i++) + if (got[i].addr == value) + goto out; +@@ -415,7 +437,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend) + #ifdef CONFIG_64BIT + static Elf_Addr get_fdesc(struct module *me, unsigned long value) + { +- Elf_Fdesc *fdesc = me->module_core + me->arch.fdesc_offset; ++ Elf_Fdesc *fdesc = me->module_core_rw + me->arch.fdesc_offset; + + if (!value) { + printk(KERN_ERR "%s: zero OPD requested!\n", me->name); +@@ -433,7 +455,7 @@ static Elf_Addr get_fdesc(struct module *me, unsigned long value) + + /* Create new one */ + fdesc->addr = value; +- fdesc->gp = (Elf_Addr)me->module_core + me->arch.got_offset; ++ fdesc->gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset; + return (Elf_Addr)fdesc; + } + #endif /* CONFIG_64BIT */ +@@ -845,7 +867,7 @@ register_unwind_table(struct module *me, + + table = (unsigned char *)sechdrs[me->arch.unwind_section].sh_addr; + end = table + sechdrs[me->arch.unwind_section].sh_size; +- gp = (Elf_Addr)me->module_core + me->arch.got_offset; ++ gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset; + + DEBUGP("register_unwind_table(), sect = %d at 0x%p - 0x%p (gp=0x%lx)\n", + me->arch.unwind_section, table, end, gp); +diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c +index c9b9322..02d8940 100644 +--- a/arch/parisc/kernel/sys_parisc.c ++++ b/arch/parisc/kernel/sys_parisc.c +@@ -43,7 +43,7 @@ static unsigned long get_unshared_area(unsigned long addr, unsigned long len) + /* At this point: (!vma || addr < vma->vm_end). */ + if (TASK_SIZE - len < addr) + return -ENOMEM; +- if (!vma || addr + len <= vma->vm_start) ++ if (check_heap_stack_gap(vma, addr, len)) + return addr; + addr = vma->vm_end; + } +@@ -79,7 +79,7 @@ static unsigned long get_shared_area(struct address_space *mapping, + /* At this point: (!vma || addr < vma->vm_end). */ + if (TASK_SIZE - len < addr) + return -ENOMEM; +- if (!vma || addr + len <= vma->vm_start) ++ if (check_heap_stack_gap(vma, addr, len)) + return addr; + addr = DCACHE_ALIGN(vma->vm_end - offset) + offset; + if (addr < vma->vm_end) /* handle wraparound */ +@@ -98,7 +98,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, + if (flags & MAP_FIXED) + return addr; + if (!addr) +- addr = TASK_UNMAPPED_BASE; ++ addr = current->mm->mmap_base; + + if (filp) { + addr = get_shared_area(filp->f_mapping, addr, len, pgoff); +diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c +index 45ba99f..8e22c33 100644 +--- a/arch/parisc/kernel/traps.c ++++ b/arch/parisc/kernel/traps.c +@@ -732,9 +732,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs) + + down_read(&current->mm->mmap_sem); + vma = find_vma(current->mm,regs->iaoq[0]); +- if (vma && (regs->iaoq[0] >= vma->vm_start) +- && (vma->vm_flags & VM_EXEC)) { +- ++ if (vma && (regs->iaoq[0] >= vma->vm_start)) { + fault_address = regs->iaoq[0]; + fault_space = regs->iasq[0]; + +diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c +index 18162ce..94de376 100644 +--- a/arch/parisc/mm/fault.c ++++ b/arch/parisc/mm/fault.c +@@ -15,6 +15,7 @@ + #include <linux/sched.h> + #include <linux/interrupt.h> + #include <linux/module.h> ++#include <linux/unistd.h> + + #include <asm/uaccess.h> + #include <asm/traps.h> +@@ -52,7 +53,7 @@ DEFINE_PER_CPU(struct exception_data, exception_data); + static unsigned long + parisc_acctyp(unsigned long code, unsigned int inst) + { +- if (code == 6 || code == 16) ++ if (code == 6 || code == 7 || code == 16) + return VM_EXEC; + + switch (inst & 0xf0000000) { +@@ -138,6 +139,116 @@ parisc_acctyp(unsigned long code, unsigned int inst) + } + #endif + ++#ifdef CONFIG_PAX_PAGEEXEC ++/* ++ * PaX: decide what to do with offenders (instruction_pointer(regs) = fault address) ++ * ++ * returns 1 when task should be killed ++ * 2 when rt_sigreturn trampoline was detected ++ * 3 when unpatched PLT trampoline was detected ++ */ ++static int pax_handle_fetch_fault(struct pt_regs *regs) ++{ ++ ++#ifdef CONFIG_PAX_EMUPLT ++ int err; ++ ++ do { /* PaX: unpatched PLT emulation */ ++ unsigned int bl, depwi; ++ ++ err = get_user(bl, (unsigned int *)instruction_pointer(regs)); ++ err |= get_user(depwi, (unsigned int *)(instruction_pointer(regs)+4)); ++ ++ if (err) ++ break; ++ ++ if (bl == 0xEA9F1FDDU && depwi == 0xD6801C1EU) { ++ unsigned int ldw, bv, ldw2, addr = instruction_pointer(regs)-12; ++ ++ err = get_user(ldw, (unsigned int *)addr); ++ err |= get_user(bv, (unsigned int *)(addr+4)); ++ err |= get_user(ldw2, (unsigned int *)(addr+8)); ++ ++ if (err) ++ break; ++ ++ if (ldw == 0x0E801096U && ++ bv == 0xEAC0C000U && ++ ldw2 == 0x0E881095U) ++ { ++ unsigned int resolver, map; ++ ++ err = get_user(resolver, (unsigned int *)(instruction_pointer(regs)+8)); ++ err |= get_user(map, (unsigned int *)(instruction_pointer(regs)+12)); ++ if (err) ++ break; ++ ++ regs->gr[20] = instruction_pointer(regs)+8; ++ regs->gr[21] = map; ++ regs->gr[22] = resolver; ++ regs->iaoq[0] = resolver | 3UL; ++ regs->iaoq[1] = regs->iaoq[0] + 4; ++ return 3; ++ } ++ } ++ } while (0); ++#endif ++ ++#ifdef CONFIG_PAX_EMUTRAMP ++ ++#ifndef CONFIG_PAX_EMUSIGRT ++ if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP)) ++ return 1; ++#endif ++ ++ do { /* PaX: rt_sigreturn emulation */ ++ unsigned int ldi1, ldi2, bel, nop; ++ ++ err = get_user(ldi1, (unsigned int *)instruction_pointer(regs)); ++ err |= get_user(ldi2, (unsigned int *)(instruction_pointer(regs)+4)); ++ err |= get_user(bel, (unsigned int *)(instruction_pointer(regs)+8)); ++ err |= get_user(nop, (unsigned int *)(instruction_pointer(regs)+12)); ++ ++ if (err) ++ break; ++ ++ if ((ldi1 == 0x34190000U || ldi1 == 0x34190002U) && ++ ldi2 == 0x3414015AU && ++ bel == 0xE4008200U && ++ nop == 0x08000240U) ++ { ++ regs->gr[25] = (ldi1 & 2) >> 1; ++ regs->gr[20] = __NR_rt_sigreturn; ++ regs->gr[31] = regs->iaoq[1] + 16; ++ regs->sr[0] = regs->iasq[1]; ++ regs->iaoq[0] = 0x100UL; ++ regs->iaoq[1] = regs->iaoq[0] + 4; ++ regs->iasq[0] = regs->sr[2]; ++ regs->iasq[1] = regs->sr[2]; ++ return 2; ++ } ++ } while (0); ++#endif ++ ++ return 1; ++} ++ ++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) ++{ ++ unsigned long i; ++ ++ printk(KERN_ERR "PAX: bytes at PC: "); ++ for (i = 0; i < 5; i++) { ++ unsigned int c; ++ if (get_user(c, (unsigned int *)pc+i)) ++ printk(KERN_CONT "???????? "); ++ else ++ printk(KERN_CONT "%08x ", c); ++ } ++ printk("\n"); ++} ++#endif ++ + int fixup_exception(struct pt_regs *regs) + { + const struct exception_table_entry *fix; +@@ -192,8 +303,33 @@ good_area: + + acc_type = parisc_acctyp(code,regs->iir); + +- if ((vma->vm_flags & acc_type) != acc_type) ++ if ((vma->vm_flags & acc_type) != acc_type) { ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && (acc_type & VM_EXEC) && ++ (address & ~3UL) == instruction_pointer(regs)) ++ { ++ up_read(&mm->mmap_sem); ++ switch (pax_handle_fetch_fault(regs)) { ++ ++#ifdef CONFIG_PAX_EMUPLT ++ case 3: ++ return; ++#endif ++ ++#ifdef CONFIG_PAX_EMUTRAMP ++ case 2: ++ return; ++#endif ++ ++ } ++ pax_report_fault(regs, (void *)instruction_pointer(regs), (void *)regs->gr[30]); ++ do_group_exit(SIGKILL); ++ } ++#endif ++ + goto bad_area; ++ } + + /* + * If for any reason at all we couldn't handle the fault, make +diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h +index da29032..f76c24c 100644 +--- a/arch/powerpc/include/asm/atomic.h ++++ b/arch/powerpc/include/asm/atomic.h +@@ -522,6 +522,16 @@ static __inline__ long atomic64_inc_not_zero(atomic64_t *v) + return t1; + } + ++#define atomic64_read_unchecked(v) atomic64_read(v) ++#define atomic64_set_unchecked(v, i) atomic64_set((v), (i)) ++#define atomic64_add_unchecked(a, v) atomic64_add((a), (v)) ++#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v)) ++#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v)) ++#define atomic64_inc_unchecked(v) atomic64_inc(v) ++#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v) ++#define atomic64_dec_unchecked(v) atomic64_dec(v) ++#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n)) ++ + #endif /* __powerpc64__ */ + + #endif /* __KERNEL__ */ +diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h +index 9e495c9..b6878e5 100644 +--- a/arch/powerpc/include/asm/cache.h ++++ b/arch/powerpc/include/asm/cache.h +@@ -3,6 +3,7 @@ + + #ifdef __KERNEL__ + ++#include <linux/const.h> + + /* bytes per L1 cache line */ + #if defined(CONFIG_8xx) || defined(CONFIG_403GCX) +@@ -22,7 +23,7 @@ + #define L1_CACHE_SHIFT 7 + #endif + +-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + #define SMP_CACHE_BYTES L1_CACHE_BYTES + +diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h +index 3bf9cca..e7457d0 100644 +--- a/arch/powerpc/include/asm/elf.h ++++ b/arch/powerpc/include/asm/elf.h +@@ -178,8 +178,19 @@ typedef elf_fpreg_t elf_vsrreghalf_t32[ELF_NVSRHALFREG]; + the loader. We need to make sure that it is out of the way of the program + that it will "exec", and that there is sufficient room for the brk. */ + +-extern unsigned long randomize_et_dyn(unsigned long base); +-#define ELF_ET_DYN_BASE (randomize_et_dyn(0x20000000)) ++#define ELF_ET_DYN_BASE (0x20000000) ++ ++#ifdef CONFIG_PAX_ASLR ++#define PAX_ELF_ET_DYN_BASE (0x10000000UL) ++ ++#ifdef __powerpc64__ ++#define PAX_DELTA_MMAP_LEN (is_32bit_task() ? 16 : 28) ++#define PAX_DELTA_STACK_LEN (is_32bit_task() ? 16 : 28) ++#else ++#define PAX_DELTA_MMAP_LEN 15 ++#define PAX_DELTA_STACK_LEN 15 ++#endif ++#endif + + /* + * Our registers are always unsigned longs, whether we're a 32 bit +@@ -274,9 +285,6 @@ extern int arch_setup_additional_pages(struct linux_binprm *bprm, + (0x7ff >> (PAGE_SHIFT - 12)) : \ + (0x3ffff >> (PAGE_SHIFT - 12))) + +-extern unsigned long arch_randomize_brk(struct mm_struct *mm); +-#define arch_randomize_brk arch_randomize_brk +- + #endif /* __KERNEL__ */ + + /* +diff --git a/arch/powerpc/include/asm/exec.h b/arch/powerpc/include/asm/exec.h +index 8196e9c..d83a9f3 100644 +--- a/arch/powerpc/include/asm/exec.h ++++ b/arch/powerpc/include/asm/exec.h +@@ -4,6 +4,6 @@ + #ifndef _ASM_POWERPC_EXEC_H + #define _ASM_POWERPC_EXEC_H + +-extern unsigned long arch_align_stack(unsigned long sp); ++#define arch_align_stack(x) ((x) & ~0xfUL) + + #endif /* _ASM_POWERPC_EXEC_H */ +diff --git a/arch/powerpc/include/asm/kmap_types.h b/arch/powerpc/include/asm/kmap_types.h +index bca8fdc..61e9580 100644 +--- a/arch/powerpc/include/asm/kmap_types.h ++++ b/arch/powerpc/include/asm/kmap_types.h +@@ -27,6 +27,7 @@ enum km_type { + KM_PPC_SYNC_PAGE, + KM_PPC_SYNC_ICACHE, + KM_KDB, ++ KM_CLEARPAGE, + KM_TYPE_NR + }; + +diff --git a/arch/powerpc/include/asm/mman.h b/arch/powerpc/include/asm/mman.h +index d4a7f64..451de1c 100644 +--- a/arch/powerpc/include/asm/mman.h ++++ b/arch/powerpc/include/asm/mman.h +@@ -44,7 +44,7 @@ static inline unsigned long arch_calc_vm_prot_bits(unsigned long prot) + } + #define arch_calc_vm_prot_bits(prot) arch_calc_vm_prot_bits(prot) + +-static inline pgprot_t arch_vm_get_page_prot(unsigned long vm_flags) ++static inline pgprot_t arch_vm_get_page_prot(vm_flags_t vm_flags) + { + return (vm_flags & VM_SAO) ? __pgprot(_PAGE_SAO) : __pgprot(0); + } +diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h +index f072e97..b436dee 100644 +--- a/arch/powerpc/include/asm/page.h ++++ b/arch/powerpc/include/asm/page.h +@@ -220,8 +220,9 @@ extern long long virt_phys_offset; + * and needs to be executable. This means the whole heap ends + * up being executable. + */ +-#define VM_DATA_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \ +- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) ++#define VM_DATA_DEFAULT_FLAGS32 \ ++ (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \ ++ VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) + + #define VM_DATA_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \ + VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) +@@ -249,6 +250,9 @@ extern long long virt_phys_offset; + #define is_kernel_addr(x) ((x) >= PAGE_OFFSET) + #endif + ++#define ktla_ktva(addr) (addr) ++#define ktva_ktla(addr) (addr) ++ + /* + * Use the top bit of the higher-level page table entries to indicate whether + * the entries we point to contain hugepages. This works because we know that +diff --git a/arch/powerpc/include/asm/page_64.h b/arch/powerpc/include/asm/page_64.h +index fed85e6..da5c71b 100644 +--- a/arch/powerpc/include/asm/page_64.h ++++ b/arch/powerpc/include/asm/page_64.h +@@ -146,15 +146,18 @@ do { \ + * stack by default, so in the absence of a PT_GNU_STACK program header + * we turn execute permission off. + */ +-#define VM_STACK_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \ +- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) ++#define VM_STACK_DEFAULT_FLAGS32 \ ++ (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \ ++ VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) + + #define VM_STACK_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \ + VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) + ++#ifndef CONFIG_PAX_PAGEEXEC + #define VM_STACK_DEFAULT_FLAGS \ + (is_32bit_task() ? \ + VM_STACK_DEFAULT_FLAGS32 : VM_STACK_DEFAULT_FLAGS64) ++#endif + + #include <asm-generic/getorder.h> + +diff --git a/arch/powerpc/include/asm/pgalloc-64.h b/arch/powerpc/include/asm/pgalloc-64.h +index 292725c..f87ae14 100644 +--- a/arch/powerpc/include/asm/pgalloc-64.h ++++ b/arch/powerpc/include/asm/pgalloc-64.h +@@ -50,6 +50,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) + #ifndef CONFIG_PPC_64K_PAGES + + #define pgd_populate(MM, PGD, PUD) pgd_set(PGD, PUD) ++#define pgd_populate_kernel(MM, PGD, PUD) pgd_populate((MM), (PGD), (PUD)) + + static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) + { +@@ -67,6 +68,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) + pud_set(pud, (unsigned long)pmd); + } + ++static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) ++{ ++ pud_populate(mm, pud, pmd); ++} ++ + #define pmd_populate(mm, pmd, pte_page) \ + pmd_populate_kernel(mm, pmd, page_address(pte_page)) + #define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, (unsigned long)(pte)) +@@ -76,6 +82,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) + #else /* CONFIG_PPC_64K_PAGES */ + + #define pud_populate(mm, pud, pmd) pud_set(pud, (unsigned long)pmd) ++#define pud_populate_kernel(mm, pud, pmd) pud_populate((mm), (pud), (pmd)) + + static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, + pte_t *pte) +diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h +index 2e0e411..7899c68 100644 +--- a/arch/powerpc/include/asm/pgtable.h ++++ b/arch/powerpc/include/asm/pgtable.h +@@ -2,6 +2,7 @@ + #define _ASM_POWERPC_PGTABLE_H + #ifdef __KERNEL__ + ++#include <linux/const.h> + #ifndef __ASSEMBLY__ + #include <asm/processor.h> /* For TASK_SIZE */ + #include <asm/mmu.h> +diff --git a/arch/powerpc/include/asm/pte-hash32.h b/arch/powerpc/include/asm/pte-hash32.h +index 4aad413..85d86bf 100644 +--- a/arch/powerpc/include/asm/pte-hash32.h ++++ b/arch/powerpc/include/asm/pte-hash32.h +@@ -21,6 +21,7 @@ + #define _PAGE_FILE 0x004 /* when !present: nonlinear file mapping */ + #define _PAGE_USER 0x004 /* usermode access allowed */ + #define _PAGE_GUARDED 0x008 /* G: prohibit speculative access */ ++#define _PAGE_EXEC _PAGE_GUARDED + #define _PAGE_COHERENT 0x010 /* M: enforce memory coherence (SMP systems) */ + #define _PAGE_NO_CACHE 0x020 /* I: cache inhibit */ + #define _PAGE_WRITETHRU 0x040 /* W: cache write-through */ +diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h +index 9d7f0fb..a28fe69 100644 +--- a/arch/powerpc/include/asm/reg.h ++++ b/arch/powerpc/include/asm/reg.h +@@ -212,6 +212,7 @@ + #define SPRN_DBCR 0x136 /* e300 Data Breakpoint Control Reg */ + #define SPRN_DSISR 0x012 /* Data Storage Interrupt Status Register */ + #define DSISR_NOHPTE 0x40000000 /* no translation found */ ++#define DSISR_GUARDED 0x10000000 /* fetch from guarded storage */ + #define DSISR_PROTFAULT 0x08000000 /* protection fault */ + #define DSISR_ISSTORE 0x02000000 /* access was a store */ + #define DSISR_DABRMATCH 0x00400000 /* hit data breakpoint */ +diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h +index 4a741c7..c8162227b 100644 +--- a/arch/powerpc/include/asm/thread_info.h ++++ b/arch/powerpc/include/asm/thread_info.h +@@ -104,12 +104,14 @@ static inline struct thread_info *current_thread_info(void) + #define TIF_PERFMON_CTXSW 6 /* perfmon needs ctxsw calls */ + #define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */ + #define TIF_SINGLESTEP 8 /* singlestepping active */ +-#define TIF_MEMDIE 9 /* is terminating due to OOM killer */ + #define TIF_SECCOMP 10 /* secure computing */ + #define TIF_RESTOREALL 11 /* Restore all regs (implies NOERROR) */ + #define TIF_NOERROR 12 /* Force successful syscall return */ + #define TIF_NOTIFY_RESUME 13 /* callback before returning to user */ + #define TIF_SYSCALL_TRACEPOINT 15 /* syscall tracepoint instrumentation */ ++#define TIF_MEMDIE 16 /* is terminating due to OOM killer */ ++/* mask must be expressable within 16 bits to satisfy 'andi' instruction reqs */ ++#define TIF_GRSEC_SETXID 9 /* update credentials on syscall entry/exit */ + + /* as above, but as bit values */ + #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) +@@ -127,8 +129,11 @@ static inline struct thread_info *current_thread_info(void) + #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) + #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT) + #define _TIF_RUNLATCH (1<<TIF_RUNLATCH) ++#define _TIF_GRSEC_SETXID (1<<TIF_GRSEC_SETXID) ++ + #define _TIF_SYSCALL_T_OR_A (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \ +- _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT) ++ _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT \ ++ _TIF_GRSEC_SETXID) + + #define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \ + _TIF_NOTIFY_RESUME) +diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h +index bd0fb84..a42a14b 100644 +--- a/arch/powerpc/include/asm/uaccess.h ++++ b/arch/powerpc/include/asm/uaccess.h +@@ -13,6 +13,8 @@ + #define VERIFY_READ 0 + #define VERIFY_WRITE 1 + ++extern void check_object_size(const void *ptr, unsigned long n, bool to); ++ + /* + * The fs value determines whether argument validity checking should be + * performed or not. If get_fs() == USER_DS, checking is performed, with +@@ -327,52 +329,6 @@ do { \ + extern unsigned long __copy_tofrom_user(void __user *to, + const void __user *from, unsigned long size); + +-#ifndef __powerpc64__ +- +-static inline unsigned long copy_from_user(void *to, +- const void __user *from, unsigned long n) +-{ +- unsigned long over; +- +- if (access_ok(VERIFY_READ, from, n)) +- return __copy_tofrom_user((__force void __user *)to, from, n); +- if ((unsigned long)from < TASK_SIZE) { +- over = (unsigned long)from + n - TASK_SIZE; +- return __copy_tofrom_user((__force void __user *)to, from, +- n - over) + over; +- } +- return n; +-} +- +-static inline unsigned long copy_to_user(void __user *to, +- const void *from, unsigned long n) +-{ +- unsigned long over; +- +- if (access_ok(VERIFY_WRITE, to, n)) +- return __copy_tofrom_user(to, (__force void __user *)from, n); +- if ((unsigned long)to < TASK_SIZE) { +- over = (unsigned long)to + n - TASK_SIZE; +- return __copy_tofrom_user(to, (__force void __user *)from, +- n - over) + over; +- } +- return n; +-} +- +-#else /* __powerpc64__ */ +- +-#define __copy_in_user(to, from, size) \ +- __copy_tofrom_user((to), (from), (size)) +- +-extern unsigned long copy_from_user(void *to, const void __user *from, +- unsigned long n); +-extern unsigned long copy_to_user(void __user *to, const void *from, +- unsigned long n); +-extern unsigned long copy_in_user(void __user *to, const void __user *from, +- unsigned long n); +- +-#endif /* __powerpc64__ */ +- + static inline unsigned long __copy_from_user_inatomic(void *to, + const void __user *from, unsigned long n) + { +@@ -396,6 +352,10 @@ static inline unsigned long __copy_from_user_inatomic(void *to, + if (ret == 0) + return 0; + } ++ ++ if (!__builtin_constant_p(n)) ++ check_object_size(to, n, false); ++ + return __copy_tofrom_user((__force void __user *)to, from, n); + } + +@@ -422,6 +382,10 @@ static inline unsigned long __copy_to_user_inatomic(void __user *to, + if (ret == 0) + return 0; + } ++ ++ if (!__builtin_constant_p(n)) ++ check_object_size(from, n, true); ++ + return __copy_tofrom_user(to, (__force const void __user *)from, n); + } + +@@ -439,6 +403,92 @@ static inline unsigned long __copy_to_user(void __user *to, + return __copy_to_user_inatomic(to, from, size); + } + ++#ifndef __powerpc64__ ++ ++static inline unsigned long __must_check copy_from_user(void *to, ++ const void __user *from, unsigned long n) ++{ ++ unsigned long over; ++ ++ if ((long)n < 0) ++ return n; ++ ++ if (access_ok(VERIFY_READ, from, n)) { ++ if (!__builtin_constant_p(n)) ++ check_object_size(to, n, false); ++ return __copy_tofrom_user((__force void __user *)to, from, n); ++ } ++ if ((unsigned long)from < TASK_SIZE) { ++ over = (unsigned long)from + n - TASK_SIZE; ++ if (!__builtin_constant_p(n - over)) ++ check_object_size(to, n - over, false); ++ return __copy_tofrom_user((__force void __user *)to, from, ++ n - over) + over; ++ } ++ return n; ++} ++ ++static inline unsigned long __must_check copy_to_user(void __user *to, ++ const void *from, unsigned long n) ++{ ++ unsigned long over; ++ ++ if ((long)n < 0) ++ return n; ++ ++ if (access_ok(VERIFY_WRITE, to, n)) { ++ if (!__builtin_constant_p(n)) ++ check_object_size(from, n, true); ++ return __copy_tofrom_user(to, (__force void __user *)from, n); ++ } ++ if ((unsigned long)to < TASK_SIZE) { ++ over = (unsigned long)to + n - TASK_SIZE; ++ if (!__builtin_constant_p(n)) ++ check_object_size(from, n - over, true); ++ return __copy_tofrom_user(to, (__force void __user *)from, ++ n - over) + over; ++ } ++ return n; ++} ++ ++#else /* __powerpc64__ */ ++ ++#define __copy_in_user(to, from, size) \ ++ __copy_tofrom_user((to), (from), (size)) ++ ++static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n) ++{ ++ if ((long)n < 0 || n > INT_MAX) ++ return n; ++ ++ if (!__builtin_constant_p(n)) ++ check_object_size(to, n, false); ++ ++ if (likely(access_ok(VERIFY_READ, from, n))) ++ n = __copy_from_user(to, from, n); ++ else ++ memset(to, 0, n); ++ return n; ++} ++ ++static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n) ++{ ++ if ((long)n < 0 || n > INT_MAX) ++ return n; ++ ++ if (likely(access_ok(VERIFY_WRITE, to, n))) { ++ if (!__builtin_constant_p(n)) ++ check_object_size(from, n, true); ++ n = __copy_to_user(to, from, n); ++ } ++ return n; ++} ++ ++extern unsigned long copy_in_user(void __user *to, const void __user *from, ++ unsigned long n); ++ ++#endif /* __powerpc64__ */ ++ + extern unsigned long __clear_user(void __user *addr, unsigned long size); + + static inline unsigned long clear_user(void __user *addr, unsigned long size) +diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S +index 7215cc2..a9730c1 100644 +--- a/arch/powerpc/kernel/exceptions-64e.S ++++ b/arch/powerpc/kernel/exceptions-64e.S +@@ -661,6 +661,7 @@ storage_fault_common: + std r14,_DAR(r1) + std r15,_DSISR(r1) + addi r3,r1,STACK_FRAME_OVERHEAD ++ bl .save_nvgprs + mr r4,r14 + mr r5,r15 + ld r14,PACA_EXGEN+EX_R14(r13) +@@ -669,8 +670,7 @@ storage_fault_common: + cmpdi r3,0 + bne- 1f + b .ret_from_except_lite +-1: bl .save_nvgprs +- mr r5,r3 ++1: mr r5,r3 + addi r3,r1,STACK_FRAME_OVERHEAD + ld r4,_DAR(r1) + bl .bad_page_fault +diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S +index 8f880bc..c5bd2f3 100644 +--- a/arch/powerpc/kernel/exceptions-64s.S ++++ b/arch/powerpc/kernel/exceptions-64s.S +@@ -890,10 +890,10 @@ handle_page_fault: + 11: ld r4,_DAR(r1) + ld r5,_DSISR(r1) + addi r3,r1,STACK_FRAME_OVERHEAD ++ bl .save_nvgprs + bl .do_page_fault + cmpdi r3,0 + beq+ 12f +- bl .save_nvgprs + mr r5,r3 + addi r3,r1,STACK_FRAME_OVERHEAD + lwz r4,_DAR(r1) +diff --git a/arch/powerpc/kernel/module_32.c b/arch/powerpc/kernel/module_32.c +index 2e3200c..72095ce 100644 +--- a/arch/powerpc/kernel/module_32.c ++++ b/arch/powerpc/kernel/module_32.c +@@ -162,7 +162,7 @@ int module_frob_arch_sections(Elf32_Ehdr *hdr, + me->arch.core_plt_section = i; + } + if (!me->arch.core_plt_section || !me->arch.init_plt_section) { +- printk("Module doesn't contain .plt or .init.plt sections.\n"); ++ printk("Module %s doesn't contain .plt or .init.plt sections.\n", me->name); + return -ENOEXEC; + } + +@@ -192,11 +192,16 @@ static uint32_t do_plt_call(void *location, + + DEBUGP("Doing plt for call to 0x%x at 0x%x\n", val, (unsigned int)location); + /* Init, or core PLT? */ +- if (location >= mod->module_core +- && location < mod->module_core + mod->core_size) ++ if ((location >= mod->module_core_rx && location < mod->module_core_rx + mod->core_size_rx) || ++ (location >= mod->module_core_rw && location < mod->module_core_rw + mod->core_size_rw)) + entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr; +- else ++ else if ((location >= mod->module_init_rx && location < mod->module_init_rx + mod->init_size_rx) || ++ (location >= mod->module_init_rw && location < mod->module_init_rw + mod->init_size_rw)) + entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr; ++ else { ++ printk(KERN_ERR "%s: invalid R_PPC_REL24 entry found\n", mod->name); ++ return ~0UL; ++ } + + /* Find this entry, or if that fails, the next avail. entry */ + while (entry->jump[0]) { +diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c +index 4937c96..70714b7 100644 +--- a/arch/powerpc/kernel/process.c ++++ b/arch/powerpc/kernel/process.c +@@ -681,8 +681,8 @@ void show_regs(struct pt_regs * regs) + * Lookup NIP late so we have the best change of getting the + * above info out without failing + */ +- printk("NIP ["REG"] %pS\n", regs->nip, (void *)regs->nip); +- printk("LR ["REG"] %pS\n", regs->link, (void *)regs->link); ++ printk("NIP ["REG"] %pA\n", regs->nip, (void *)regs->nip); ++ printk("LR ["REG"] %pA\n", regs->link, (void *)regs->link); + #endif + show_stack(current, (unsigned long *) regs->gpr[1]); + if (!user_mode(regs)) +@@ -1186,10 +1186,10 @@ void show_stack(struct task_struct *tsk, unsigned long *stack) + newsp = stack[0]; + ip = stack[STACK_FRAME_LR_SAVE]; + if (!firstframe || ip != lr) { +- printk("["REG"] ["REG"] %pS", sp, ip, (void *)ip); ++ printk("["REG"] ["REG"] %pA", sp, ip, (void *)ip); + #ifdef CONFIG_FUNCTION_GRAPH_TRACER + if ((ip == rth || ip == mrth) && curr_frame >= 0) { +- printk(" (%pS)", ++ printk(" (%pA)", + (void *)current->ret_stack[curr_frame].ret); + curr_frame--; + } +@@ -1209,7 +1209,7 @@ void show_stack(struct task_struct *tsk, unsigned long *stack) + struct pt_regs *regs = (struct pt_regs *) + (sp + STACK_FRAME_OVERHEAD); + lr = regs->link; +- printk("--- Exception: %lx at %pS\n LR = %pS\n", ++ printk("--- Exception: %lx at %pA\n LR = %pA\n", + regs->trap, (void *)regs->nip, (void *)lr); + firstframe = 1; + } +@@ -1282,58 +1282,3 @@ void thread_info_cache_init(void) + } + + #endif /* THREAD_SHIFT < PAGE_SHIFT */ +- +-unsigned long arch_align_stack(unsigned long sp) +-{ +- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) +- sp -= get_random_int() & ~PAGE_MASK; +- return sp & ~0xf; +-} +- +-static inline unsigned long brk_rnd(void) +-{ +- unsigned long rnd = 0; +- +- /* 8MB for 32bit, 1GB for 64bit */ +- if (is_32bit_task()) +- rnd = (long)(get_random_int() % (1<<(23-PAGE_SHIFT))); +- else +- rnd = (long)(get_random_int() % (1<<(30-PAGE_SHIFT))); +- +- return rnd << PAGE_SHIFT; +-} +- +-unsigned long arch_randomize_brk(struct mm_struct *mm) +-{ +- unsigned long base = mm->brk; +- unsigned long ret; +- +-#ifdef CONFIG_PPC_STD_MMU_64 +- /* +- * If we are using 1TB segments and we are allowed to randomise +- * the heap, we can put it above 1TB so it is backed by a 1TB +- * segment. Otherwise the heap will be in the bottom 1TB +- * which always uses 256MB segments and this may result in a +- * performance penalty. +- */ +- if (!is_32bit_task() && (mmu_highuser_ssize == MMU_SEGSIZE_1T)) +- base = max_t(unsigned long, mm->brk, 1UL << SID_SHIFT_1T); +-#endif +- +- ret = PAGE_ALIGN(base + brk_rnd()); +- +- if (ret < mm->brk) +- return mm->brk; +- +- return ret; +-} +- +-unsigned long randomize_et_dyn(unsigned long base) +-{ +- unsigned long ret = PAGE_ALIGN(base + brk_rnd()); +- +- if (ret < base) +- return base; +- +- return ret; +-} +diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c +index 8d8e028..c2aeb50 100644 +--- a/arch/powerpc/kernel/ptrace.c ++++ b/arch/powerpc/kernel/ptrace.c +@@ -1702,6 +1702,10 @@ long arch_ptrace(struct task_struct *child, long request, + return ret; + } + ++#ifdef CONFIG_GRKERNSEC_SETXID ++extern void gr_delayed_cred_worker(void); ++#endif ++ + /* + * We must return the syscall number to actually look up in the table. + * This can be -1L to skip running any syscall at all. +@@ -1712,6 +1716,11 @@ long do_syscall_trace_enter(struct pt_regs *regs) + + secure_computing(regs->gpr[0]); + ++#ifdef CONFIG_GRKERNSEC_SETXID ++ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID))) ++ gr_delayed_cred_worker(); ++#endif ++ + if (test_thread_flag(TIF_SYSCALL_TRACE) && + tracehook_report_syscall_entry(regs)) + /* +@@ -1746,6 +1755,11 @@ void do_syscall_trace_leave(struct pt_regs *regs) + { + int step; + ++#ifdef CONFIG_GRKERNSEC_SETXID ++ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID))) ++ gr_delayed_cred_worker(); ++#endif ++ + audit_syscall_exit(regs); + + if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT))) +diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c +index 45eb998..0cb36bc 100644 +--- a/arch/powerpc/kernel/signal_32.c ++++ b/arch/powerpc/kernel/signal_32.c +@@ -861,7 +861,7 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka, + /* Save user registers on the stack */ + frame = &rt_sf->uc.uc_mcontext; + addr = frame; +- if (vdso32_rt_sigtramp && current->mm->context.vdso_base) { ++ if (vdso32_rt_sigtramp && current->mm->context.vdso_base != ~0UL) { + if (save_user_regs(regs, frame, 0, 1)) + goto badframe; + regs->link = current->mm->context.vdso_base + vdso32_rt_sigtramp; +diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c +index 2692efd..6673d2e 100644 +--- a/arch/powerpc/kernel/signal_64.c ++++ b/arch/powerpc/kernel/signal_64.c +@@ -430,7 +430,7 @@ int handle_rt_signal64(int signr, struct k_sigaction *ka, siginfo_t *info, + current->thread.fpscr.val = 0; + + /* Set up to return from userspace. */ +- if (vdso64_rt_sigtramp && current->mm->context.vdso_base) { ++ if (vdso64_rt_sigtramp && current->mm->context.vdso_base != ~0UL) { + regs->link = current->mm->context.vdso_base + vdso64_rt_sigtramp; + } else { + err |= setup_trampoline(__NR_rt_sigreturn, &frame->tramp[0]); +diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c +index 1589723..cefe690 100644 +--- a/arch/powerpc/kernel/traps.c ++++ b/arch/powerpc/kernel/traps.c +@@ -133,6 +133,8 @@ static unsigned __kprobes long oops_begin(struct pt_regs *regs) + return flags; + } + ++extern void gr_handle_kernel_exploit(void); ++ + static void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, + int signr) + { +@@ -182,6 +184,9 @@ static void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, + panic("Fatal exception in interrupt"); + if (panic_on_oops) + panic("Fatal exception"); ++ ++ gr_handle_kernel_exploit(); ++ + do_exit(signr); + } + +diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c +index 9eb5b9b..e45498a 100644 +--- a/arch/powerpc/kernel/vdso.c ++++ b/arch/powerpc/kernel/vdso.c +@@ -34,6 +34,7 @@ + #include <asm/firmware.h> + #include <asm/vdso.h> + #include <asm/vdso_datapage.h> ++#include <asm/mman.h> + + #include "setup.h" + +@@ -218,7 +219,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) + vdso_base = VDSO32_MBASE; + #endif + +- current->mm->context.vdso_base = 0; ++ current->mm->context.vdso_base = ~0UL; + + /* vDSO has a problem and was disabled, just don't "enable" it for the + * process +@@ -238,7 +239,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) + vdso_base = get_unmapped_area(NULL, vdso_base, + (vdso_pages << PAGE_SHIFT) + + ((VDSO_ALIGNMENT - 1) & PAGE_MASK), +- 0, 0); ++ 0, MAP_PRIVATE | MAP_EXECUTABLE); + if (IS_ERR_VALUE(vdso_base)) { + rc = vdso_base; + goto fail_mmapsem; +diff --git a/arch/powerpc/lib/usercopy_64.c b/arch/powerpc/lib/usercopy_64.c +index 5eea6f3..5d10396 100644 +--- a/arch/powerpc/lib/usercopy_64.c ++++ b/arch/powerpc/lib/usercopy_64.c +@@ -9,22 +9,6 @@ + #include <linux/module.h> + #include <asm/uaccess.h> + +-unsigned long copy_from_user(void *to, const void __user *from, unsigned long n) +-{ +- if (likely(access_ok(VERIFY_READ, from, n))) +- n = __copy_from_user(to, from, n); +- else +- memset(to, 0, n); +- return n; +-} +- +-unsigned long copy_to_user(void __user *to, const void *from, unsigned long n) +-{ +- if (likely(access_ok(VERIFY_WRITE, to, n))) +- n = __copy_to_user(to, from, n); +- return n; +-} +- + unsigned long copy_in_user(void __user *to, const void __user *from, + unsigned long n) + { +@@ -35,7 +19,5 @@ unsigned long copy_in_user(void __user *to, const void __user *from, + return n; + } + +-EXPORT_SYMBOL(copy_from_user); +-EXPORT_SYMBOL(copy_to_user); + EXPORT_SYMBOL(copy_in_user); + +diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c +index 08ffcf5..a0ab912 100644 +--- a/arch/powerpc/mm/fault.c ++++ b/arch/powerpc/mm/fault.c +@@ -32,6 +32,10 @@ + #include <linux/perf_event.h> + #include <linux/magic.h> + #include <linux/ratelimit.h> ++#include <linux/slab.h> ++#include <linux/pagemap.h> ++#include <linux/compiler.h> ++#include <linux/unistd.h> + + #include <asm/firmware.h> + #include <asm/page.h> +@@ -68,6 +72,33 @@ static inline int notify_page_fault(struct pt_regs *regs) + } + #endif + ++#ifdef CONFIG_PAX_PAGEEXEC ++/* ++ * PaX: decide what to do with offenders (regs->nip = fault address) ++ * ++ * returns 1 when task should be killed ++ */ ++static int pax_handle_fetch_fault(struct pt_regs *regs) ++{ ++ return 1; ++} ++ ++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) ++{ ++ unsigned long i; ++ ++ printk(KERN_ERR "PAX: bytes at PC: "); ++ for (i = 0; i < 5; i++) { ++ unsigned int c; ++ if (get_user(c, (unsigned int __user *)pc+i)) ++ printk(KERN_CONT "???????? "); ++ else ++ printk(KERN_CONT "%08x ", c); ++ } ++ printk("\n"); ++} ++#endif ++ + /* + * Check whether the instruction at regs->nip is a store using + * an update addressing form which will update r1. +@@ -215,7 +246,7 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address, + * indicate errors in DSISR but can validly be set in SRR1. + */ + if (trap == 0x400) +- error_code &= 0x48200000; ++ error_code &= 0x58200000; + else + is_write = error_code & DSISR_ISSTORE; + #else +@@ -366,7 +397,7 @@ good_area: + * "undefined". Of those that can be set, this is the only + * one which seems bad. + */ +- if (error_code & 0x10000000) ++ if (error_code & DSISR_GUARDED) + /* Guarded storage error. */ + goto bad_area; + #endif /* CONFIG_8xx */ +@@ -381,7 +412,7 @@ good_area: + * processors use the same I/D cache coherency mechanism + * as embedded. + */ +- if (error_code & DSISR_PROTFAULT) ++ if (error_code & (DSISR_PROTFAULT | DSISR_GUARDED)) + goto bad_area; + #endif /* CONFIG_PPC_STD_MMU */ + +@@ -463,6 +494,23 @@ bad_area: + bad_area_nosemaphore: + /* User mode accesses cause a SIGSEGV */ + if (user_mode(regs)) { ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++ if (mm->pax_flags & MF_PAX_PAGEEXEC) { ++#ifdef CONFIG_PPC_STD_MMU ++ if (is_exec && (error_code & (DSISR_PROTFAULT | DSISR_GUARDED))) { ++#else ++ if (is_exec && regs->nip == address) { ++#endif ++ switch (pax_handle_fetch_fault(regs)) { ++ } ++ ++ pax_report_fault(regs, (void *)regs->nip, (void *)regs->gpr[PT_R1]); ++ do_group_exit(SIGKILL); ++ } ++ } ++#endif ++ + _exception(SIGSEGV, regs, code, address); + return 0; + } +diff --git a/arch/powerpc/mm/mmap_64.c b/arch/powerpc/mm/mmap_64.c +index 67a42ed..1c7210c 100644 +--- a/arch/powerpc/mm/mmap_64.c ++++ b/arch/powerpc/mm/mmap_64.c +@@ -91,10 +91,22 @@ void arch_pick_mmap_layout(struct mm_struct *mm) + */ + if (mmap_is_legacy()) { + mm->mmap_base = TASK_UNMAPPED_BASE; ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ mm->mmap_base += mm->delta_mmap; ++#endif ++ + mm->get_unmapped_area = arch_get_unmapped_area; + mm->unmap_area = arch_unmap_area; + } else { + mm->mmap_base = mmap_base(); ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; ++#endif ++ + mm->get_unmapped_area = arch_get_unmapped_area_topdown; + mm->unmap_area = arch_unmap_area_topdown; + } +diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c +index 73709f7..6b90313 100644 +--- a/arch/powerpc/mm/slice.c ++++ b/arch/powerpc/mm/slice.c +@@ -98,7 +98,7 @@ static int slice_area_is_free(struct mm_struct *mm, unsigned long addr, + if ((mm->task_size - len) < addr) + return 0; + vma = find_vma(mm, addr); +- return (!vma || (addr + len) <= vma->vm_start); ++ return check_heap_stack_gap(vma, addr, len); + } + + static int slice_low_has_vma(struct mm_struct *mm, unsigned long slice) +@@ -256,7 +256,7 @@ full_search: + addr = _ALIGN_UP(addr + 1, 1ul << SLICE_HIGH_SHIFT); + continue; + } +- if (!vma || addr + len <= vma->vm_start) { ++ if (check_heap_stack_gap(vma, addr, len)) { + /* + * Remember the place where we stopped the search: + */ +@@ -313,10 +313,14 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm, + } + } + +- addr = mm->mmap_base; +- while (addr > len) { ++ if (mm->mmap_base < len) ++ addr = -ENOMEM; ++ else ++ addr = mm->mmap_base - len; ++ ++ while (!IS_ERR_VALUE(addr)) { + /* Go down by chunk size */ +- addr = _ALIGN_DOWN(addr - len, 1ul << pshift); ++ addr = _ALIGN_DOWN(addr, 1ul << pshift); + + /* Check for hit with different page size */ + mask = slice_range_to_mask(addr, len); +@@ -336,7 +340,7 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm, + * return with success: + */ + vma = find_vma(mm, addr); +- if (!vma || (addr + len) <= vma->vm_start) { ++ if (check_heap_stack_gap(vma, addr, len)) { + /* remember the address as a hint for next time */ + if (use_cache) + mm->free_area_cache = addr; +@@ -348,7 +352,7 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm, + mm->cached_hole_size = vma->vm_start - addr; + + /* try just below the current vma->vm_start */ +- addr = vma->vm_start; ++ addr = skip_heap_stack_gap(vma, len); + } + + /* +@@ -426,6 +430,11 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len, + if (fixed && addr > (mm->task_size - len)) + return -EINVAL; + ++#ifdef CONFIG_PAX_RANDMMAP ++ if (!fixed && (mm->pax_flags & MF_PAX_RANDMMAP)) ++ addr = 0; ++#endif ++ + /* If hint, make sure it matches our alignment restrictions */ + if (!fixed && addr) { + addr = _ALIGN_UP(addr, 1ul << pshift); +diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h +index 748347b..81bc6c7 100644 +--- a/arch/s390/include/asm/atomic.h ++++ b/arch/s390/include/asm/atomic.h +@@ -326,6 +326,16 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v) + #define atomic64_dec_and_test(_v) (atomic64_sub_return(1, _v) == 0) + #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) + ++#define atomic64_read_unchecked(v) atomic64_read(v) ++#define atomic64_set_unchecked(v, i) atomic64_set((v), (i)) ++#define atomic64_add_unchecked(a, v) atomic64_add((a), (v)) ++#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v)) ++#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v)) ++#define atomic64_inc_unchecked(v) atomic64_inc(v) ++#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v) ++#define atomic64_dec_unchecked(v) atomic64_dec(v) ++#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n)) ++ + #define smp_mb__before_atomic_dec() smp_mb() + #define smp_mb__after_atomic_dec() smp_mb() + #define smp_mb__before_atomic_inc() smp_mb() +diff --git a/arch/s390/include/asm/cache.h b/arch/s390/include/asm/cache.h +index 2a30d5a..5e5586f 100644 +--- a/arch/s390/include/asm/cache.h ++++ b/arch/s390/include/asm/cache.h +@@ -11,8 +11,10 @@ + #ifndef __ARCH_S390_CACHE_H + #define __ARCH_S390_CACHE_H + +-#define L1_CACHE_BYTES 256 ++#include <linux/const.h> ++ + #define L1_CACHE_SHIFT 8 ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + #define NET_SKB_PAD 32 + + #define __read_mostly __attribute__((__section__(".data..read_mostly"))) +diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h +index c4ee39f..352881b 100644 +--- a/arch/s390/include/asm/elf.h ++++ b/arch/s390/include/asm/elf.h +@@ -161,8 +161,14 @@ extern unsigned int vdso_enabled; + the loader. We need to make sure that it is out of the way of the program + that it will "exec", and that there is sufficient room for the brk. */ + +-extern unsigned long randomize_et_dyn(unsigned long base); +-#define ELF_ET_DYN_BASE (randomize_et_dyn(STACK_TOP / 3 * 2)) ++#define ELF_ET_DYN_BASE (STACK_TOP / 3 * 2) ++ ++#ifdef CONFIG_PAX_ASLR ++#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_31BIT) ? 0x10000UL : 0x80000000UL) ++ ++#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_31BIT) ? 15 : 26) ++#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_31BIT) ? 15 : 26) ++#endif + + /* This yields a mask that user programs can use to figure out what + instruction set this CPU supports. */ +@@ -210,7 +216,4 @@ struct linux_binprm; + #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 + int arch_setup_additional_pages(struct linux_binprm *, int); + +-extern unsigned long arch_randomize_brk(struct mm_struct *mm); +-#define arch_randomize_brk arch_randomize_brk +- + #endif +diff --git a/arch/s390/include/asm/exec.h b/arch/s390/include/asm/exec.h +index c4a93d6..4d2a9b4 100644 +--- a/arch/s390/include/asm/exec.h ++++ b/arch/s390/include/asm/exec.h +@@ -7,6 +7,6 @@ + #ifndef __ASM_EXEC_H + #define __ASM_EXEC_H + +-extern unsigned long arch_align_stack(unsigned long sp); ++#define arch_align_stack(x) ((x) & ~0xfUL) + + #endif /* __ASM_EXEC_H */ +diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h +index 8f2cada..43072c1 100644 +--- a/arch/s390/include/asm/uaccess.h ++++ b/arch/s390/include/asm/uaccess.h +@@ -236,6 +236,10 @@ static inline unsigned long __must_check + copy_to_user(void __user *to, const void *from, unsigned long n) + { + might_fault(); ++ ++ if ((long)n < 0) ++ return n; ++ + if (access_ok(VERIFY_WRITE, to, n)) + n = __copy_to_user(to, from, n); + return n; +@@ -261,6 +265,9 @@ copy_to_user(void __user *to, const void *from, unsigned long n) + static inline unsigned long __must_check + __copy_from_user(void *to, const void __user *from, unsigned long n) + { ++ if ((long)n < 0) ++ return n; ++ + if (__builtin_constant_p(n) && (n <= 256)) + return uaccess.copy_from_user_small(n, from, to); + else +@@ -292,10 +299,14 @@ __compiletime_warning("copy_from_user() buffer size is not provably correct") + static inline unsigned long __must_check + copy_from_user(void *to, const void __user *from, unsigned long n) + { +- unsigned int sz = __compiletime_object_size(to); ++ size_t sz = __compiletime_object_size(to); + + might_fault(); +- if (unlikely(sz != -1 && sz < n)) { ++ ++ if ((long)n < 0) ++ return n; ++ ++ if (unlikely(sz != (size_t)-1 && sz < n)) { + copy_from_user_overflow(); + return n; + } +diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c +index dfcb343..eda788a 100644 +--- a/arch/s390/kernel/module.c ++++ b/arch/s390/kernel/module.c +@@ -161,11 +161,11 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs, + + /* Increase core size by size of got & plt and set start + offsets for got and plt. */ +- me->core_size = ALIGN(me->core_size, 4); +- me->arch.got_offset = me->core_size; +- me->core_size += me->arch.got_size; +- me->arch.plt_offset = me->core_size; +- me->core_size += me->arch.plt_size; ++ me->core_size_rw = ALIGN(me->core_size_rw, 4); ++ me->arch.got_offset = me->core_size_rw; ++ me->core_size_rw += me->arch.got_size; ++ me->arch.plt_offset = me->core_size_rx; ++ me->core_size_rx += me->arch.plt_size; + return 0; + } + +@@ -242,7 +242,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab, + if (info->got_initialized == 0) { + Elf_Addr *gotent; + +- gotent = me->module_core + me->arch.got_offset + ++ gotent = me->module_core_rw + me->arch.got_offset + + info->got_offset; + *gotent = val; + info->got_initialized = 1; +@@ -266,7 +266,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab, + else if (r_type == R_390_GOTENT || + r_type == R_390_GOTPLTENT) + *(unsigned int *) loc = +- (val + (Elf_Addr) me->module_core - loc) >> 1; ++ (val + (Elf_Addr) me->module_core_rw - loc) >> 1; + else if (r_type == R_390_GOT64 || + r_type == R_390_GOTPLT64) + *(unsigned long *) loc = val; +@@ -280,7 +280,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab, + case R_390_PLTOFF64: /* 16 bit offset from GOT to PLT. */ + if (info->plt_initialized == 0) { + unsigned int *ip; +- ip = me->module_core + me->arch.plt_offset + ++ ip = me->module_core_rx + me->arch.plt_offset + + info->plt_offset; + #ifndef CONFIG_64BIT + ip[0] = 0x0d105810; /* basr 1,0; l 1,6(1); br 1 */ +@@ -305,7 +305,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab, + val - loc + 0xffffUL < 0x1ffffeUL) || + (r_type == R_390_PLT32DBL && + val - loc + 0xffffffffULL < 0x1fffffffeULL))) +- val = (Elf_Addr) me->module_core + ++ val = (Elf_Addr) me->module_core_rx + + me->arch.plt_offset + + info->plt_offset; + val += rela->r_addend - loc; +@@ -327,7 +327,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab, + case R_390_GOTOFF32: /* 32 bit offset to GOT. */ + case R_390_GOTOFF64: /* 64 bit offset to GOT. */ + val = val + rela->r_addend - +- ((Elf_Addr) me->module_core + me->arch.got_offset); ++ ((Elf_Addr) me->module_core_rw + me->arch.got_offset); + if (r_type == R_390_GOTOFF16) + *(unsigned short *) loc = val; + else if (r_type == R_390_GOTOFF32) +@@ -337,7 +337,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab, + break; + case R_390_GOTPC: /* 32 bit PC relative offset to GOT. */ + case R_390_GOTPCDBL: /* 32 bit PC rel. off. to GOT shifted by 1. */ +- val = (Elf_Addr) me->module_core + me->arch.got_offset + ++ val = (Elf_Addr) me->module_core_rw + me->arch.got_offset + + rela->r_addend - loc; + if (r_type == R_390_GOTPC) + *(unsigned int *) loc = val; +diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c +index 60055ce..ee4b252 100644 +--- a/arch/s390/kernel/process.c ++++ b/arch/s390/kernel/process.c +@@ -316,39 +316,3 @@ unsigned long get_wchan(struct task_struct *p) + } + return 0; + } +- +-unsigned long arch_align_stack(unsigned long sp) +-{ +- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) +- sp -= get_random_int() & ~PAGE_MASK; +- return sp & ~0xf; +-} +- +-static inline unsigned long brk_rnd(void) +-{ +- /* 8MB for 32bit, 1GB for 64bit */ +- if (is_32bit_task()) +- return (get_random_int() & 0x7ffUL) << PAGE_SHIFT; +- else +- return (get_random_int() & 0x3ffffUL) << PAGE_SHIFT; +-} +- +-unsigned long arch_randomize_brk(struct mm_struct *mm) +-{ +- unsigned long ret = PAGE_ALIGN(mm->brk + brk_rnd()); +- +- if (ret < mm->brk) +- return mm->brk; +- return ret; +-} +- +-unsigned long randomize_et_dyn(unsigned long base) +-{ +- unsigned long ret = PAGE_ALIGN(base + brk_rnd()); +- +- if (!(current->flags & PF_RANDOMIZE)) +- return base; +- if (ret < base) +- return base; +- return ret; +-} +diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c +index 2857c48..d047481 100644 +--- a/arch/s390/mm/mmap.c ++++ b/arch/s390/mm/mmap.c +@@ -92,10 +92,22 @@ void arch_pick_mmap_layout(struct mm_struct *mm) + */ + if (mmap_is_legacy()) { + mm->mmap_base = TASK_UNMAPPED_BASE; ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ mm->mmap_base += mm->delta_mmap; ++#endif ++ + mm->get_unmapped_area = arch_get_unmapped_area; + mm->unmap_area = arch_unmap_area; + } else { + mm->mmap_base = mmap_base(); ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; ++#endif ++ + mm->get_unmapped_area = arch_get_unmapped_area_topdown; + mm->unmap_area = arch_unmap_area_topdown; + } +@@ -166,10 +178,22 @@ void arch_pick_mmap_layout(struct mm_struct *mm) + */ + if (mmap_is_legacy()) { + mm->mmap_base = TASK_UNMAPPED_BASE; ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ mm->mmap_base += mm->delta_mmap; ++#endif ++ + mm->get_unmapped_area = s390_get_unmapped_area; + mm->unmap_area = arch_unmap_area; + } else { + mm->mmap_base = mmap_base(); ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; ++#endif ++ + mm->get_unmapped_area = s390_get_unmapped_area_topdown; + mm->unmap_area = arch_unmap_area_topdown; + } +diff --git a/arch/score/include/asm/cache.h b/arch/score/include/asm/cache.h +index ae3d59f..f65f075 100644 +--- a/arch/score/include/asm/cache.h ++++ b/arch/score/include/asm/cache.h +@@ -1,7 +1,9 @@ + #ifndef _ASM_SCORE_CACHE_H + #define _ASM_SCORE_CACHE_H + ++#include <linux/const.h> ++ + #define L1_CACHE_SHIFT 4 +-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + #endif /* _ASM_SCORE_CACHE_H */ +diff --git a/arch/score/include/asm/exec.h b/arch/score/include/asm/exec.h +index f9f3cd5..58ff438 100644 +--- a/arch/score/include/asm/exec.h ++++ b/arch/score/include/asm/exec.h +@@ -1,6 +1,6 @@ + #ifndef _ASM_SCORE_EXEC_H + #define _ASM_SCORE_EXEC_H + +-extern unsigned long arch_align_stack(unsigned long sp); ++#define arch_align_stack(x) (x) + + #endif /* _ASM_SCORE_EXEC_H */ +diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c +index 2707023..1c2a3b7 100644 +--- a/arch/score/kernel/process.c ++++ b/arch/score/kernel/process.c +@@ -159,8 +159,3 @@ unsigned long get_wchan(struct task_struct *task) + + return task_pt_regs(task)->cp0_epc; + } +- +-unsigned long arch_align_stack(unsigned long sp) +-{ +- return sp; +-} +diff --git a/arch/sh/include/asm/cache.h b/arch/sh/include/asm/cache.h +index ef9e555..331bd29 100644 +--- a/arch/sh/include/asm/cache.h ++++ b/arch/sh/include/asm/cache.h +@@ -9,10 +9,11 @@ + #define __ASM_SH_CACHE_H + #ifdef __KERNEL__ + ++#include <linux/const.h> + #include <linux/init.h> + #include <cpu/cache.h> + +-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + #define __read_mostly __attribute__((__section__(".data..read_mostly"))) + +diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c +index afeb710..d1d1289 100644 +--- a/arch/sh/mm/mmap.c ++++ b/arch/sh/mm/mmap.c +@@ -74,8 +74,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, + addr = PAGE_ALIGN(addr); + + vma = find_vma(mm, addr); +- if (TASK_SIZE - len >= addr && +- (!vma || addr + len <= vma->vm_start)) ++ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len)) + return addr; + } + +@@ -106,7 +105,7 @@ full_search: + } + return -ENOMEM; + } +- if (likely(!vma || addr + len <= vma->vm_start)) { ++ if (likely(check_heap_stack_gap(vma, addr, len))) { + /* + * Remember the place where we stopped the search: + */ +@@ -157,8 +156,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, + addr = PAGE_ALIGN(addr); + + vma = find_vma(mm, addr); +- if (TASK_SIZE - len >= addr && +- (!vma || addr + len <= vma->vm_start)) ++ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len)) + return addr; + } + +@@ -179,7 +177,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, + /* make sure it can fit in the remaining address space */ + if (likely(addr > len)) { + vma = find_vma(mm, addr-len); +- if (!vma || addr <= vma->vm_start) { ++ if (check_heap_stack_gap(vma, addr - len, len)) { + /* remember the address as a hint for next time */ + return (mm->free_area_cache = addr-len); + } +@@ -188,18 +186,18 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, + if (unlikely(mm->mmap_base < len)) + goto bottomup; + +- addr = mm->mmap_base-len; +- if (do_colour_align) +- addr = COLOUR_ALIGN_DOWN(addr, pgoff); ++ addr = mm->mmap_base - len; + + do { ++ if (do_colour_align) ++ addr = COLOUR_ALIGN_DOWN(addr, pgoff); + /* + * Lookup failure means no vma is above this address, + * else if new region fits below vma->vm_start, + * return with success: + */ + vma = find_vma(mm, addr); +- if (likely(!vma || addr+len <= vma->vm_start)) { ++ if (likely(check_heap_stack_gap(vma, addr, len))) { + /* remember the address as a hint for next time */ + return (mm->free_area_cache = addr); + } +@@ -209,10 +207,8 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, + mm->cached_hole_size = vma->vm_start - addr; + + /* try just below the current vma->vm_start */ +- addr = vma->vm_start-len; +- if (do_colour_align) +- addr = COLOUR_ALIGN_DOWN(addr, pgoff); +- } while (likely(len < vma->vm_start)); ++ addr = skip_heap_stack_gap(vma, len); ++ } while (!IS_ERR_VALUE(addr)); + + bottomup: + /* +diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile +index eddcfb3..b117d90 100644 +--- a/arch/sparc/Makefile ++++ b/arch/sparc/Makefile +@@ -75,7 +75,7 @@ drivers-$(CONFIG_OPROFILE) += arch/sparc/oprofile/ + # Export what is needed by arch/sparc/boot/Makefile + export VMLINUX_INIT VMLINUX_MAIN + VMLINUX_INIT := $(head-y) $(init-y) +-VMLINUX_MAIN := $(core-y) kernel/ mm/ fs/ ipc/ security/ crypto/ block/ ++VMLINUX_MAIN := $(core-y) kernel/ mm/ fs/ ipc/ security/ crypto/ block/ grsecurity/ + VMLINUX_MAIN += $(patsubst %/, %/lib.a, $(libs-y)) $(libs-y) + VMLINUX_MAIN += $(drivers-y) $(net-y) + +diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h +index ce35a1c..2e7b8f9 100644 +--- a/arch/sparc/include/asm/atomic_64.h ++++ b/arch/sparc/include/asm/atomic_64.h +@@ -14,18 +14,40 @@ + #define ATOMIC64_INIT(i) { (i) } + + #define atomic_read(v) (*(volatile int *)&(v)->counter) ++static inline int atomic_read_unchecked(const atomic_unchecked_t *v) ++{ ++ return v->counter; ++} + #define atomic64_read(v) (*(volatile long *)&(v)->counter) ++static inline long atomic64_read_unchecked(const atomic64_unchecked_t *v) ++{ ++ return v->counter; ++} + + #define atomic_set(v, i) (((v)->counter) = i) ++static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i) ++{ ++ v->counter = i; ++} + #define atomic64_set(v, i) (((v)->counter) = i) ++static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i) ++{ ++ v->counter = i; ++} + + extern void atomic_add(int, atomic_t *); ++extern void atomic_add_unchecked(int, atomic_unchecked_t *); + extern void atomic64_add(long, atomic64_t *); ++extern void atomic64_add_unchecked(long, atomic64_unchecked_t *); + extern void atomic_sub(int, atomic_t *); ++extern void atomic_sub_unchecked(int, atomic_unchecked_t *); + extern void atomic64_sub(long, atomic64_t *); ++extern void atomic64_sub_unchecked(long, atomic64_unchecked_t *); + + extern int atomic_add_ret(int, atomic_t *); ++extern int atomic_add_ret_unchecked(int, atomic_unchecked_t *); + extern long atomic64_add_ret(long, atomic64_t *); ++extern long atomic64_add_ret_unchecked(long, atomic64_unchecked_t *); + extern int atomic_sub_ret(int, atomic_t *); + extern long atomic64_sub_ret(long, atomic64_t *); + +@@ -33,13 +55,29 @@ extern long atomic64_sub_ret(long, atomic64_t *); + #define atomic64_dec_return(v) atomic64_sub_ret(1, v) + + #define atomic_inc_return(v) atomic_add_ret(1, v) ++static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v) ++{ ++ return atomic_add_ret_unchecked(1, v); ++} + #define atomic64_inc_return(v) atomic64_add_ret(1, v) ++static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v) ++{ ++ return atomic64_add_ret_unchecked(1, v); ++} + + #define atomic_sub_return(i, v) atomic_sub_ret(i, v) + #define atomic64_sub_return(i, v) atomic64_sub_ret(i, v) + + #define atomic_add_return(i, v) atomic_add_ret(i, v) ++static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v) ++{ ++ return atomic_add_ret_unchecked(i, v); ++} + #define atomic64_add_return(i, v) atomic64_add_ret(i, v) ++static inline long atomic64_add_return_unchecked(long i, atomic64_unchecked_t *v) ++{ ++ return atomic64_add_ret_unchecked(i, v); ++} + + /* + * atomic_inc_and_test - increment and test +@@ -50,6 +88,10 @@ extern long atomic64_sub_ret(long, atomic64_t *); + * other cases. + */ + #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0) ++static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v) ++{ ++ return atomic_inc_return_unchecked(v) == 0; ++} + #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0) + + #define atomic_sub_and_test(i, v) (atomic_sub_ret(i, v) == 0) +@@ -59,25 +101,60 @@ extern long atomic64_sub_ret(long, atomic64_t *); + #define atomic64_dec_and_test(v) (atomic64_sub_ret(1, v) == 0) + + #define atomic_inc(v) atomic_add(1, v) ++static inline void atomic_inc_unchecked(atomic_unchecked_t *v) ++{ ++ atomic_add_unchecked(1, v); ++} + #define atomic64_inc(v) atomic64_add(1, v) ++static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v) ++{ ++ atomic64_add_unchecked(1, v); ++} + + #define atomic_dec(v) atomic_sub(1, v) ++static inline void atomic_dec_unchecked(atomic_unchecked_t *v) ++{ ++ atomic_sub_unchecked(1, v); ++} + #define atomic64_dec(v) atomic64_sub(1, v) ++static inline void atomic64_dec_unchecked(atomic64_unchecked_t *v) ++{ ++ atomic64_sub_unchecked(1, v); ++} + + #define atomic_add_negative(i, v) (atomic_add_ret(i, v) < 0) + #define atomic64_add_negative(i, v) (atomic64_add_ret(i, v) < 0) + + #define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n))) ++static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new) ++{ ++ return cmpxchg(&v->counter, old, new); ++} + #define atomic_xchg(v, new) (xchg(&((v)->counter), new)) ++static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new) ++{ ++ return xchg(&v->counter, new); ++} + + static inline int __atomic_add_unless(atomic_t *v, int a, int u) + { +- int c, old; ++ int c, old, new; + c = atomic_read(v); + for (;;) { +- if (unlikely(c == (u))) ++ if (unlikely(c == u)) + break; +- old = atomic_cmpxchg((v), c, c + (a)); ++ ++ asm volatile("addcc %2, %0, %0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "tvs %%icc, 6\n" ++#endif ++ ++ : "=r" (new) ++ : "0" (c), "ir" (a) ++ : "cc"); ++ ++ old = atomic_cmpxchg(v, c, new); + if (likely(old == c)) + break; + c = old; +@@ -88,20 +165,35 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u) + #define atomic64_cmpxchg(v, o, n) \ + ((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n))) + #define atomic64_xchg(v, new) (xchg(&((v)->counter), new)) ++static inline long atomic64_xchg_unchecked(atomic64_unchecked_t *v, long new) ++{ ++ return xchg(&v->counter, new); ++} + + static inline long atomic64_add_unless(atomic64_t *v, long a, long u) + { +- long c, old; ++ long c, old, new; + c = atomic64_read(v); + for (;;) { +- if (unlikely(c == (u))) ++ if (unlikely(c == u)) + break; +- old = atomic64_cmpxchg((v), c, c + (a)); ++ ++ asm volatile("addcc %2, %0, %0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "tvs %%xcc, 6\n" ++#endif ++ ++ : "=r" (new) ++ : "0" (c), "ir" (a) ++ : "cc"); ++ ++ old = atomic64_cmpxchg(v, c, new); + if (likely(old == c)) + break; + c = old; + } +- return c != (u); ++ return c != u; + } + + #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) +diff --git a/arch/sparc/include/asm/cache.h b/arch/sparc/include/asm/cache.h +index 69358b5..9d0d492 100644 +--- a/arch/sparc/include/asm/cache.h ++++ b/arch/sparc/include/asm/cache.h +@@ -7,10 +7,12 @@ + #ifndef _SPARC_CACHE_H + #define _SPARC_CACHE_H + ++#include <linux/const.h> ++ + #define ARCH_SLAB_MINALIGN __alignof__(unsigned long long) + + #define L1_CACHE_SHIFT 5 +-#define L1_CACHE_BYTES 32 ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + #ifdef CONFIG_SPARC32 + #define SMP_CACHE_BYTES_SHIFT 5 +diff --git a/arch/sparc/include/asm/elf_32.h b/arch/sparc/include/asm/elf_32.h +index 4269ca6..e3da77f 100644 +--- a/arch/sparc/include/asm/elf_32.h ++++ b/arch/sparc/include/asm/elf_32.h +@@ -114,6 +114,13 @@ typedef struct { + + #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE) + ++#ifdef CONFIG_PAX_ASLR ++#define PAX_ELF_ET_DYN_BASE 0x10000UL ++ ++#define PAX_DELTA_MMAP_LEN 16 ++#define PAX_DELTA_STACK_LEN 16 ++#endif ++ + /* This yields a mask that user programs can use to figure out what + instruction set this cpu supports. This can NOT be done in userspace + on Sparc. */ +diff --git a/arch/sparc/include/asm/elf_64.h b/arch/sparc/include/asm/elf_64.h +index 7df8b7f..4946269 100644 +--- a/arch/sparc/include/asm/elf_64.h ++++ b/arch/sparc/include/asm/elf_64.h +@@ -180,6 +180,13 @@ typedef struct { + #define ELF_ET_DYN_BASE 0x0000010000000000UL + #define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL + ++#ifdef CONFIG_PAX_ASLR ++#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT) ? 0x10000UL : 0x100000UL) ++ ++#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT) ? 14 : 28) ++#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT) ? 15 : 29) ++#endif ++ + extern unsigned long sparc64_elf_hwcap; + #define ELF_HWCAP sparc64_elf_hwcap + +diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h +index ca2b344..c6084f89 100644 +--- a/arch/sparc/include/asm/pgalloc_32.h ++++ b/arch/sparc/include/asm/pgalloc_32.h +@@ -37,6 +37,7 @@ BTFIXUPDEF_CALL(void, free_pgd_fast, pgd_t *) + BTFIXUPDEF_CALL(void, pgd_set, pgd_t *, pmd_t *) + #define pgd_set(pgdp,pmdp) BTFIXUP_CALL(pgd_set)(pgdp,pmdp) + #define pgd_populate(MM, PGD, PMD) pgd_set(PGD, PMD) ++#define pgd_populate_kernel(MM, PGD, PMD) pgd_populate((MM), (PGD), (PMD)) + + BTFIXUPDEF_CALL(pmd_t *, pmd_alloc_one, struct mm_struct *, unsigned long) + #define pmd_alloc_one(mm, address) BTFIXUP_CALL(pmd_alloc_one)(mm, address) +diff --git a/arch/sparc/include/asm/pgalloc_64.h b/arch/sparc/include/asm/pgalloc_64.h +index 40b2d7a..22a665b 100644 +--- a/arch/sparc/include/asm/pgalloc_64.h ++++ b/arch/sparc/include/asm/pgalloc_64.h +@@ -26,6 +26,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) + } + + #define pud_populate(MM, PUD, PMD) pud_set(PUD, PMD) ++#define pud_populate_kernel(MM, PUD, PMD) pud_populate((MM), (PUD), (PMD)) + + static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) + { +diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h +index 3d71018..48a11c5 100644 +--- a/arch/sparc/include/asm/pgtable_32.h ++++ b/arch/sparc/include/asm/pgtable_32.h +@@ -45,6 +45,13 @@ BTFIXUPDEF_SIMM13(user_ptrs_per_pgd) + BTFIXUPDEF_INT(page_none) + BTFIXUPDEF_INT(page_copy) + BTFIXUPDEF_INT(page_readonly) ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++BTFIXUPDEF_INT(page_shared_noexec) ++BTFIXUPDEF_INT(page_copy_noexec) ++BTFIXUPDEF_INT(page_readonly_noexec) ++#endif ++ + BTFIXUPDEF_INT(page_kernel) + + #define PMD_SHIFT SUN4C_PMD_SHIFT +@@ -66,6 +73,16 @@ extern pgprot_t PAGE_SHARED; + #define PAGE_COPY __pgprot(BTFIXUP_INT(page_copy)) + #define PAGE_READONLY __pgprot(BTFIXUP_INT(page_readonly)) + ++#ifdef CONFIG_PAX_PAGEEXEC ++extern pgprot_t PAGE_SHARED_NOEXEC; ++# define PAGE_COPY_NOEXEC __pgprot(BTFIXUP_INT(page_copy_noexec)) ++# define PAGE_READONLY_NOEXEC __pgprot(BTFIXUP_INT(page_readonly_noexec)) ++#else ++# define PAGE_SHARED_NOEXEC PAGE_SHARED ++# define PAGE_COPY_NOEXEC PAGE_COPY ++# define PAGE_READONLY_NOEXEC PAGE_READONLY ++#endif ++ + extern unsigned long page_kernel; + + #ifdef MODULE +diff --git a/arch/sparc/include/asm/pgtsrmmu.h b/arch/sparc/include/asm/pgtsrmmu.h +index f6ae2b2..b03ffc7 100644 +--- a/arch/sparc/include/asm/pgtsrmmu.h ++++ b/arch/sparc/include/asm/pgtsrmmu.h +@@ -115,6 +115,13 @@ + SRMMU_EXEC | SRMMU_REF) + #define SRMMU_PAGE_RDONLY __pgprot(SRMMU_VALID | SRMMU_CACHE | \ + SRMMU_EXEC | SRMMU_REF) ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++#define SRMMU_PAGE_SHARED_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_WRITE | SRMMU_REF) ++#define SRMMU_PAGE_COPY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF) ++#define SRMMU_PAGE_RDONLY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF) ++#endif ++ + #define SRMMU_PAGE_KERNEL __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_PRIV | \ + SRMMU_DIRTY | SRMMU_REF) + +diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h +index 9689176..63c18ea 100644 +--- a/arch/sparc/include/asm/spinlock_64.h ++++ b/arch/sparc/include/asm/spinlock_64.h +@@ -92,14 +92,19 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long fla + + /* Multi-reader locks, these are much saner than the 32-bit Sparc ones... */ + +-static void inline arch_read_lock(arch_rwlock_t *lock) ++static inline void arch_read_lock(arch_rwlock_t *lock) + { + unsigned long tmp1, tmp2; + + __asm__ __volatile__ ( + "1: ldsw [%2], %0\n" + " brlz,pn %0, 2f\n" +-"4: add %0, 1, %1\n" ++"4: addcc %0, 1, %1\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++" tvs %%icc, 6\n" ++#endif ++ + " cas [%2], %0, %1\n" + " cmp %0, %1\n" + " bne,pn %%icc, 1b\n" +@@ -112,10 +117,10 @@ static void inline arch_read_lock(arch_rwlock_t *lock) + " .previous" + : "=&r" (tmp1), "=&r" (tmp2) + : "r" (lock) +- : "memory"); ++ : "memory", "cc"); + } + +-static int inline arch_read_trylock(arch_rwlock_t *lock) ++static inline int arch_read_trylock(arch_rwlock_t *lock) + { + int tmp1, tmp2; + +@@ -123,7 +128,12 @@ static int inline arch_read_trylock(arch_rwlock_t *lock) + "1: ldsw [%2], %0\n" + " brlz,a,pn %0, 2f\n" + " mov 0, %0\n" +-" add %0, 1, %1\n" ++" addcc %0, 1, %1\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++" tvs %%icc, 6\n" ++#endif ++ + " cas [%2], %0, %1\n" + " cmp %0, %1\n" + " bne,pn %%icc, 1b\n" +@@ -136,13 +146,18 @@ static int inline arch_read_trylock(arch_rwlock_t *lock) + return tmp1; + } + +-static void inline arch_read_unlock(arch_rwlock_t *lock) ++static inline void arch_read_unlock(arch_rwlock_t *lock) + { + unsigned long tmp1, tmp2; + + __asm__ __volatile__( + "1: lduw [%2], %0\n" +-" sub %0, 1, %1\n" ++" subcc %0, 1, %1\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++" tvs %%icc, 6\n" ++#endif ++ + " cas [%2], %0, %1\n" + " cmp %0, %1\n" + " bne,pn %%xcc, 1b\n" +@@ -152,7 +167,7 @@ static void inline arch_read_unlock(arch_rwlock_t *lock) + : "memory"); + } + +-static void inline arch_write_lock(arch_rwlock_t *lock) ++static inline void arch_write_lock(arch_rwlock_t *lock) + { + unsigned long mask, tmp1, tmp2; + +@@ -177,7 +192,7 @@ static void inline arch_write_lock(arch_rwlock_t *lock) + : "memory"); + } + +-static void inline arch_write_unlock(arch_rwlock_t *lock) ++static inline void arch_write_unlock(arch_rwlock_t *lock) + { + __asm__ __volatile__( + " stw %%g0, [%0]" +@@ -186,7 +201,7 @@ static void inline arch_write_unlock(arch_rwlock_t *lock) + : "memory"); + } + +-static int inline arch_write_trylock(arch_rwlock_t *lock) ++static inline int arch_write_trylock(arch_rwlock_t *lock) + { + unsigned long mask, tmp1, tmp2, result; + +diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h +index c2a1080..21ed218 100644 +--- a/arch/sparc/include/asm/thread_info_32.h ++++ b/arch/sparc/include/asm/thread_info_32.h +@@ -50,6 +50,8 @@ struct thread_info { + unsigned long w_saved; + + struct restart_block restart_block; ++ ++ unsigned long lowest_stack; + }; + + /* +diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h +index 01d057f..13a7d2f 100644 +--- a/arch/sparc/include/asm/thread_info_64.h ++++ b/arch/sparc/include/asm/thread_info_64.h +@@ -63,6 +63,8 @@ struct thread_info { + struct pt_regs *kern_una_regs; + unsigned int kern_una_insn; + ++ unsigned long lowest_stack; ++ + unsigned long fpregs[0] __attribute__ ((aligned(64))); + }; + +@@ -214,10 +216,11 @@ register struct thread_info *current_thread_info_reg asm("g6"); + #define TIF_UNALIGNED 5 /* allowed to do unaligned accesses */ + /* flag bit 6 is available */ + #define TIF_32BIT 7 /* 32-bit binary */ +-/* flag bit 8 is available */ ++#define TIF_GRSEC_SETXID 8 /* update credentials on syscall entry/exit */ + #define TIF_SECCOMP 9 /* secure computing */ + #define TIF_SYSCALL_AUDIT 10 /* syscall auditing active */ + #define TIF_SYSCALL_TRACEPOINT 11 /* syscall tracepoint instrumentation */ ++ + /* NOTE: Thread flags >= 12 should be ones we have no interest + * in using in assembly, else we can't use the mask as + * an immediate value in instructions such as andcc. +@@ -236,12 +239,18 @@ register struct thread_info *current_thread_info_reg asm("g6"); + #define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT) + #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT) + #define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG) ++#define _TIF_GRSEC_SETXID (1<<TIF_GRSEC_SETXID) + + #define _TIF_USER_WORK_MASK ((0xff << TI_FLAG_WSAVED_SHIFT) | \ + _TIF_DO_NOTIFY_RESUME_MASK | \ + _TIF_NEED_RESCHED) + #define _TIF_DO_NOTIFY_RESUME_MASK (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING) + ++#define _TIF_WORK_SYSCALL \ ++ (_TIF_SYSCALL_TRACE | _TIF_SECCOMP | _TIF_SYSCALL_AUDIT | \ ++ _TIF_SYSCALL_TRACEPOINT | _TIF_GRSEC_SETXID) ++ ++ + /* + * Thread-synchronous status. + * +diff --git a/arch/sparc/include/asm/uaccess.h b/arch/sparc/include/asm/uaccess.h +index e88fbe5..96b0ce5 100644 +--- a/arch/sparc/include/asm/uaccess.h ++++ b/arch/sparc/include/asm/uaccess.h +@@ -1,5 +1,13 @@ + #ifndef ___ASM_SPARC_UACCESS_H + #define ___ASM_SPARC_UACCESS_H ++ ++#ifdef __KERNEL__ ++#ifndef __ASSEMBLY__ ++#include <linux/types.h> ++extern void check_object_size(const void *ptr, unsigned long n, bool to); ++#endif ++#endif ++ + #if defined(__sparc__) && defined(__arch64__) + #include <asm/uaccess_64.h> + #else +diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h +index 8303ac4..07f333d 100644 +--- a/arch/sparc/include/asm/uaccess_32.h ++++ b/arch/sparc/include/asm/uaccess_32.h +@@ -249,27 +249,46 @@ extern unsigned long __copy_user(void __user *to, const void __user *from, unsig + + static inline unsigned long copy_to_user(void __user *to, const void *from, unsigned long n) + { +- if (n && __access_ok((unsigned long) to, n)) ++ if ((long)n < 0) ++ return n; ++ ++ if (n && __access_ok((unsigned long) to, n)) { ++ if (!__builtin_constant_p(n)) ++ check_object_size(from, n, true); + return __copy_user(to, (__force void __user *) from, n); +- else ++ } else + return n; + } + + static inline unsigned long __copy_to_user(void __user *to, const void *from, unsigned long n) + { ++ if ((long)n < 0) ++ return n; ++ ++ if (!__builtin_constant_p(n)) ++ check_object_size(from, n, true); ++ + return __copy_user(to, (__force void __user *) from, n); + } + + static inline unsigned long copy_from_user(void *to, const void __user *from, unsigned long n) + { +- if (n && __access_ok((unsigned long) from, n)) ++ if ((long)n < 0) ++ return n; ++ ++ if (n && __access_ok((unsigned long) from, n)) { ++ if (!__builtin_constant_p(n)) ++ check_object_size(to, n, false); + return __copy_user((__force void __user *) to, from, n); +- else ++ } else + return n; + } + + static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n) + { ++ if ((long)n < 0) ++ return n; ++ + return __copy_user((__force void __user *) to, from, n); + } + +diff --git a/arch/sparc/include/asm/uaccess_64.h b/arch/sparc/include/asm/uaccess_64.h +index a1091afb..380228e 100644 +--- a/arch/sparc/include/asm/uaccess_64.h ++++ b/arch/sparc/include/asm/uaccess_64.h +@@ -10,6 +10,7 @@ + #include <linux/compiler.h> + #include <linux/string.h> + #include <linux/thread_info.h> ++#include <linux/kernel.h> + #include <asm/asi.h> + #include <asm/spitfire.h> + #include <asm-generic/uaccess-unaligned.h> +@@ -212,8 +213,15 @@ extern unsigned long copy_from_user_fixup(void *to, const void __user *from, + static inline unsigned long __must_check + copy_from_user(void *to, const void __user *from, unsigned long size) + { +- unsigned long ret = ___copy_from_user(to, from, size); ++ unsigned long ret; + ++ if ((long)size < 0 || size > INT_MAX) ++ return size; ++ ++ if (!__builtin_constant_p(size)) ++ check_object_size(to, size, false); ++ ++ ret = ___copy_from_user(to, from, size); + if (unlikely(ret)) + ret = copy_from_user_fixup(to, from, size); + +@@ -229,8 +237,15 @@ extern unsigned long copy_to_user_fixup(void __user *to, const void *from, + static inline unsigned long __must_check + copy_to_user(void __user *to, const void *from, unsigned long size) + { +- unsigned long ret = ___copy_to_user(to, from, size); ++ unsigned long ret; + ++ if ((long)size < 0 || size > INT_MAX) ++ return size; ++ ++ if (!__builtin_constant_p(size)) ++ check_object_size(from, size, true); ++ ++ ret = ___copy_to_user(to, from, size); + if (unlikely(ret)) + ret = copy_to_user_fixup(to, from, size); + return ret; +diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile +index cb85458..e063f17 100644 +--- a/arch/sparc/kernel/Makefile ++++ b/arch/sparc/kernel/Makefile +@@ -3,7 +3,7 @@ + # + + asflags-y := -ansi +-ccflags-y := -Werror ++#ccflags-y := -Werror + + extra-y := head_$(BITS).o + extra-y += init_task.o +diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c +index efa0754..74b03fe 100644 +--- a/arch/sparc/kernel/process_32.c ++++ b/arch/sparc/kernel/process_32.c +@@ -200,7 +200,7 @@ void __show_backtrace(unsigned long fp) + rw->ins[4], rw->ins[5], + rw->ins[6], + rw->ins[7]); +- printk("%pS\n", (void *) rw->ins[7]); ++ printk("%pA\n", (void *) rw->ins[7]); + rw = (struct reg_window32 *) rw->ins[6]; + } + spin_unlock_irqrestore(&sparc_backtrace_lock, flags); +@@ -267,14 +267,14 @@ void show_regs(struct pt_regs *r) + + printk("PSR: %08lx PC: %08lx NPC: %08lx Y: %08lx %s\n", + r->psr, r->pc, r->npc, r->y, print_tainted()); +- printk("PC: <%pS>\n", (void *) r->pc); ++ printk("PC: <%pA>\n", (void *) r->pc); + printk("%%G: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n", + r->u_regs[0], r->u_regs[1], r->u_regs[2], r->u_regs[3], + r->u_regs[4], r->u_regs[5], r->u_regs[6], r->u_regs[7]); + printk("%%O: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n", + r->u_regs[8], r->u_regs[9], r->u_regs[10], r->u_regs[11], + r->u_regs[12], r->u_regs[13], r->u_regs[14], r->u_regs[15]); +- printk("RPC: <%pS>\n", (void *) r->u_regs[15]); ++ printk("RPC: <%pA>\n", (void *) r->u_regs[15]); + + printk("%%L: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n", + rw->locals[0], rw->locals[1], rw->locals[2], rw->locals[3], +@@ -309,7 +309,7 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp) + rw = (struct reg_window32 *) fp; + pc = rw->ins[7]; + printk("[%08lx : ", pc); +- printk("%pS ] ", (void *) pc); ++ printk("%pA ] ", (void *) pc); + fp = rw->ins[6]; + } while (++count < 16); + printk("\n"); +diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c +index aff0c72..9067b39 100644 +--- a/arch/sparc/kernel/process_64.c ++++ b/arch/sparc/kernel/process_64.c +@@ -179,14 +179,14 @@ static void show_regwindow(struct pt_regs *regs) + printk("i4: %016lx i5: %016lx i6: %016lx i7: %016lx\n", + rwk->ins[4], rwk->ins[5], rwk->ins[6], rwk->ins[7]); + if (regs->tstate & TSTATE_PRIV) +- printk("I7: <%pS>\n", (void *) rwk->ins[7]); ++ printk("I7: <%pA>\n", (void *) rwk->ins[7]); + } + + void show_regs(struct pt_regs *regs) + { + printk("TSTATE: %016lx TPC: %016lx TNPC: %016lx Y: %08x %s\n", regs->tstate, + regs->tpc, regs->tnpc, regs->y, print_tainted()); +- printk("TPC: <%pS>\n", (void *) regs->tpc); ++ printk("TPC: <%pA>\n", (void *) regs->tpc); + printk("g0: %016lx g1: %016lx g2: %016lx g3: %016lx\n", + regs->u_regs[0], regs->u_regs[1], regs->u_regs[2], + regs->u_regs[3]); +@@ -199,7 +199,7 @@ void show_regs(struct pt_regs *regs) + printk("o4: %016lx o5: %016lx sp: %016lx ret_pc: %016lx\n", + regs->u_regs[12], regs->u_regs[13], regs->u_regs[14], + regs->u_regs[15]); +- printk("RPC: <%pS>\n", (void *) regs->u_regs[15]); ++ printk("RPC: <%pA>\n", (void *) regs->u_regs[15]); + show_regwindow(regs); + show_stack(current, (unsigned long *) regs->u_regs[UREG_FP]); + } +@@ -284,7 +284,7 @@ void arch_trigger_all_cpu_backtrace(void) + ((tp && tp->task) ? tp->task->pid : -1)); + + if (gp->tstate & TSTATE_PRIV) { +- printk(" TPC[%pS] O7[%pS] I7[%pS] RPC[%pS]\n", ++ printk(" TPC[%pA] O7[%pA] I7[%pA] RPC[%pA]\n", + (void *) gp->tpc, + (void *) gp->o7, + (void *) gp->i7, +diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c +index 6f97c07..b1300ec 100644 +--- a/arch/sparc/kernel/ptrace_64.c ++++ b/arch/sparc/kernel/ptrace_64.c +@@ -1057,6 +1057,10 @@ long arch_ptrace(struct task_struct *child, long request, + return ret; + } + ++#ifdef CONFIG_GRKERNSEC_SETXID ++extern void gr_delayed_cred_worker(void); ++#endif ++ + asmlinkage int syscall_trace_enter(struct pt_regs *regs) + { + int ret = 0; +@@ -1064,6 +1068,11 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs) + /* do the secure computing check first */ + secure_computing(regs->u_regs[UREG_G1]); + ++#ifdef CONFIG_GRKERNSEC_SETXID ++ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID))) ++ gr_delayed_cred_worker(); ++#endif ++ + if (test_thread_flag(TIF_SYSCALL_TRACE)) + ret = tracehook_report_syscall_entry(regs); + +@@ -1084,6 +1093,11 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs) + + asmlinkage void syscall_trace_leave(struct pt_regs *regs) + { ++#ifdef CONFIG_GRKERNSEC_SETXID ++ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID))) ++ gr_delayed_cred_worker(); ++#endif ++ + audit_syscall_exit(regs); + + if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT))) +diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c +index 42b282f..28ce9f2 100644 +--- a/arch/sparc/kernel/sys_sparc_32.c ++++ b/arch/sparc/kernel/sys_sparc_32.c +@@ -56,7 +56,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi + if (ARCH_SUN4C && len > 0x20000000) + return -ENOMEM; + if (!addr) +- addr = TASK_UNMAPPED_BASE; ++ addr = current->mm->mmap_base; + + if (flags & MAP_SHARED) + addr = COLOUR_ALIGN(addr); +@@ -71,7 +71,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi + } + if (TASK_SIZE - PAGE_SIZE - len < addr) + return -ENOMEM; +- if (!vmm || addr + len <= vmm->vm_start) ++ if (check_heap_stack_gap(vmm, addr, len)) + return addr; + addr = vmm->vm_end; + if (flags & MAP_SHARED) +diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c +index 3ee51f1..2ba4913 100644 +--- a/arch/sparc/kernel/sys_sparc_64.c ++++ b/arch/sparc/kernel/sys_sparc_64.c +@@ -124,7 +124,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi + /* We do not accept a shared mapping if it would violate + * cache aliasing constraints. + */ +- if ((flags & MAP_SHARED) && ++ if ((filp || (flags & MAP_SHARED)) && + ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))) + return -EINVAL; + return addr; +@@ -139,6 +139,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi + if (filp || (flags & MAP_SHARED)) + do_color_align = 1; + ++#ifdef CONFIG_PAX_RANDMMAP ++ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) ++#endif ++ + if (addr) { + if (do_color_align) + addr = COLOUR_ALIGN(addr, pgoff); +@@ -146,15 +150,14 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi + addr = PAGE_ALIGN(addr); + + vma = find_vma(mm, addr); +- if (task_size - len >= addr && +- (!vma || addr + len <= vma->vm_start)) ++ if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len)) + return addr; + } + + if (len > mm->cached_hole_size) { +- start_addr = addr = mm->free_area_cache; ++ start_addr = addr = mm->free_area_cache; + } else { +- start_addr = addr = TASK_UNMAPPED_BASE; ++ start_addr = addr = mm->mmap_base; + mm->cached_hole_size = 0; + } + +@@ -174,14 +177,14 @@ full_search: + vma = find_vma(mm, VA_EXCLUDE_END); + } + if (unlikely(task_size < addr)) { +- if (start_addr != TASK_UNMAPPED_BASE) { +- start_addr = addr = TASK_UNMAPPED_BASE; ++ if (start_addr != mm->mmap_base) { ++ start_addr = addr = mm->mmap_base; + mm->cached_hole_size = 0; + goto full_search; + } + return -ENOMEM; + } +- if (likely(!vma || addr + len <= vma->vm_start)) { ++ if (likely(check_heap_stack_gap(vma, addr, len))) { + /* + * Remember the place where we stopped the search: + */ +@@ -215,7 +218,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, + /* We do not accept a shared mapping if it would violate + * cache aliasing constraints. + */ +- if ((flags & MAP_SHARED) && ++ if ((filp || (flags & MAP_SHARED)) && + ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))) + return -EINVAL; + return addr; +@@ -236,8 +239,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, + addr = PAGE_ALIGN(addr); + + vma = find_vma(mm, addr); +- if (task_size - len >= addr && +- (!vma || addr + len <= vma->vm_start)) ++ if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len)) + return addr; + } + +@@ -258,7 +260,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, + /* make sure it can fit in the remaining address space */ + if (likely(addr > len)) { + vma = find_vma(mm, addr-len); +- if (!vma || addr <= vma->vm_start) { ++ if (check_heap_stack_gap(vma, addr - len, len)) { + /* remember the address as a hint for next time */ + return (mm->free_area_cache = addr-len); + } +@@ -267,18 +269,18 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, + if (unlikely(mm->mmap_base < len)) + goto bottomup; + +- addr = mm->mmap_base-len; +- if (do_color_align) +- addr = COLOUR_ALIGN_DOWN(addr, pgoff); ++ addr = mm->mmap_base - len; + + do { ++ if (do_color_align) ++ addr = COLOUR_ALIGN_DOWN(addr, pgoff); + /* + * Lookup failure means no vma is above this address, + * else if new region fits below vma->vm_start, + * return with success: + */ + vma = find_vma(mm, addr); +- if (likely(!vma || addr+len <= vma->vm_start)) { ++ if (likely(check_heap_stack_gap(vma, addr, len))) { + /* remember the address as a hint for next time */ + return (mm->free_area_cache = addr); + } +@@ -288,10 +290,8 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, + mm->cached_hole_size = vma->vm_start - addr; + + /* try just below the current vma->vm_start */ +- addr = vma->vm_start-len; +- if (do_color_align) +- addr = COLOUR_ALIGN_DOWN(addr, pgoff); +- } while (likely(len < vma->vm_start)); ++ addr = skip_heap_stack_gap(vma, len); ++ } while (!IS_ERR_VALUE(addr)); + + bottomup: + /* +@@ -390,6 +390,12 @@ void arch_pick_mmap_layout(struct mm_struct *mm) + gap == RLIM_INFINITY || + sysctl_legacy_va_layout) { + mm->mmap_base = TASK_UNMAPPED_BASE + random_factor; ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ mm->mmap_base += mm->delta_mmap; ++#endif ++ + mm->get_unmapped_area = arch_get_unmapped_area; + mm->unmap_area = arch_unmap_area; + } else { +@@ -402,6 +408,12 @@ void arch_pick_mmap_layout(struct mm_struct *mm) + gap = (task_size / 6 * 5); + + mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor); ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; ++#endif ++ + mm->get_unmapped_area = arch_get_unmapped_area_topdown; + mm->unmap_area = arch_unmap_area_topdown; + } +diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S +index 1d7e274..b39c527 100644 +--- a/arch/sparc/kernel/syscalls.S ++++ b/arch/sparc/kernel/syscalls.S +@@ -62,7 +62,7 @@ sys32_rt_sigreturn: + #endif + .align 32 + 1: ldx [%g6 + TI_FLAGS], %l5 +- andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0 ++ andcc %l5, _TIF_WORK_SYSCALL, %g0 + be,pt %icc, rtrap + nop + call syscall_trace_leave +@@ -179,7 +179,7 @@ linux_sparc_syscall32: + + srl %i5, 0, %o5 ! IEU1 + srl %i2, 0, %o2 ! IEU0 Group +- andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0 ++ andcc %l0, _TIF_WORK_SYSCALL, %g0 + bne,pn %icc, linux_syscall_trace32 ! CTI + mov %i0, %l5 ! IEU1 + call %l7 ! CTI Group brk forced +@@ -202,7 +202,7 @@ linux_sparc_syscall: + + mov %i3, %o3 ! IEU1 + mov %i4, %o4 ! IEU0 Group +- andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0 ++ andcc %l0, _TIF_WORK_SYSCALL, %g0 + bne,pn %icc, linux_syscall_trace ! CTI Group + mov %i0, %l5 ! IEU0 + 2: call %l7 ! CTI Group brk forced +@@ -226,7 +226,7 @@ ret_sys_call: + + cmp %o0, -ERESTART_RESTARTBLOCK + bgeu,pn %xcc, 1f +- andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %l6 ++ andcc %l0, _TIF_WORK_SYSCALL, %l6 + 80: + /* System call success, clear Carry condition code. */ + andn %g3, %g2, %g3 +@@ -241,7 +241,7 @@ ret_sys_call: + /* System call failure, set Carry condition code. + * Also, get abs(errno) to return to the process. + */ +- andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %l6 ++ andcc %l0, _TIF_WORK_SYSCALL, %l6 + sub %g0, %o0, %o0 + or %g3, %g2, %g3 + stx %o0, [%sp + PTREGS_OFF + PT_V9_I0] +diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c +index d2de213..6b22bc3 100644 +--- a/arch/sparc/kernel/traps_32.c ++++ b/arch/sparc/kernel/traps_32.c +@@ -44,6 +44,8 @@ static void instruction_dump(unsigned long *pc) + #define __SAVE __asm__ __volatile__("save %sp, -0x40, %sp\n\t") + #define __RESTORE __asm__ __volatile__("restore %g0, %g0, %g0\n\t") + ++extern void gr_handle_kernel_exploit(void); ++ + void die_if_kernel(char *str, struct pt_regs *regs) + { + static int die_counter; +@@ -76,15 +78,17 @@ void die_if_kernel(char *str, struct pt_regs *regs) + count++ < 30 && + (((unsigned long) rw) >= PAGE_OFFSET) && + !(((unsigned long) rw) & 0x7)) { +- printk("Caller[%08lx]: %pS\n", rw->ins[7], ++ printk("Caller[%08lx]: %pA\n", rw->ins[7], + (void *) rw->ins[7]); + rw = (struct reg_window32 *)rw->ins[6]; + } + } + printk("Instruction DUMP:"); + instruction_dump ((unsigned long *) regs->pc); +- if(regs->psr & PSR_PS) ++ if(regs->psr & PSR_PS) { ++ gr_handle_kernel_exploit(); + do_exit(SIGKILL); ++ } + do_exit(SIGSEGV); + } + +diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c +index c72fdf5..743a344 100644 +--- a/arch/sparc/kernel/traps_64.c ++++ b/arch/sparc/kernel/traps_64.c +@@ -75,7 +75,7 @@ static void dump_tl1_traplog(struct tl1_traplog *p) + i + 1, + p->trapstack[i].tstate, p->trapstack[i].tpc, + p->trapstack[i].tnpc, p->trapstack[i].tt); +- printk("TRAPLOG: TPC<%pS>\n", (void *) p->trapstack[i].tpc); ++ printk("TRAPLOG: TPC<%pA>\n", (void *) p->trapstack[i].tpc); + } + } + +@@ -95,6 +95,12 @@ void bad_trap(struct pt_regs *regs, long lvl) + + lvl -= 0x100; + if (regs->tstate & TSTATE_PRIV) { ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ if (lvl == 6) ++ pax_report_refcount_overflow(regs); ++#endif ++ + sprintf(buffer, "Kernel bad sw trap %lx", lvl); + die_if_kernel(buffer, regs); + } +@@ -113,11 +119,16 @@ void bad_trap(struct pt_regs *regs, long lvl) + void bad_trap_tl1(struct pt_regs *regs, long lvl) + { + char buffer[32]; +- ++ + if (notify_die(DIE_TRAP_TL1, "bad trap tl1", regs, + 0, lvl, SIGTRAP) == NOTIFY_STOP) + return; + ++#ifdef CONFIG_PAX_REFCOUNT ++ if (lvl == 6) ++ pax_report_refcount_overflow(regs); ++#endif ++ + dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); + + sprintf (buffer, "Bad trap %lx at tl>0", lvl); +@@ -1141,7 +1152,7 @@ static void cheetah_log_errors(struct pt_regs *regs, struct cheetah_err_info *in + regs->tpc, regs->tnpc, regs->u_regs[UREG_I7], regs->tstate); + printk("%s" "ERROR(%d): ", + (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id()); +- printk("TPC<%pS>\n", (void *) regs->tpc); ++ printk("TPC<%pA>\n", (void *) regs->tpc); + printk("%s" "ERROR(%d): M_SYND(%lx), E_SYND(%lx)%s%s\n", + (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), + (afsr & CHAFSR_M_SYNDROME) >> CHAFSR_M_SYNDROME_SHIFT, +@@ -1748,7 +1759,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs) + smp_processor_id(), + (type & 0x1) ? 'I' : 'D', + regs->tpc); +- printk(KERN_EMERG "TPC<%pS>\n", (void *) regs->tpc); ++ printk(KERN_EMERG "TPC<%pA>\n", (void *) regs->tpc); + panic("Irrecoverable Cheetah+ parity error."); + } + +@@ -1756,7 +1767,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs) + smp_processor_id(), + (type & 0x1) ? 'I' : 'D', + regs->tpc); +- printk(KERN_WARNING "TPC<%pS>\n", (void *) regs->tpc); ++ printk(KERN_WARNING "TPC<%pA>\n", (void *) regs->tpc); + } + + struct sun4v_error_entry { +@@ -1963,9 +1974,9 @@ void sun4v_itlb_error_report(struct pt_regs *regs, int tl) + + printk(KERN_EMERG "SUN4V-ITLB: Error at TPC[%lx], tl %d\n", + regs->tpc, tl); +- printk(KERN_EMERG "SUN4V-ITLB: TPC<%pS>\n", (void *) regs->tpc); ++ printk(KERN_EMERG "SUN4V-ITLB: TPC<%pA>\n", (void *) regs->tpc); + printk(KERN_EMERG "SUN4V-ITLB: O7[%lx]\n", regs->u_regs[UREG_I7]); +- printk(KERN_EMERG "SUN4V-ITLB: O7<%pS>\n", ++ printk(KERN_EMERG "SUN4V-ITLB: O7<%pA>\n", + (void *) regs->u_regs[UREG_I7]); + printk(KERN_EMERG "SUN4V-ITLB: vaddr[%lx] ctx[%lx] " + "pte[%lx] error[%lx]\n", +@@ -1987,9 +1998,9 @@ void sun4v_dtlb_error_report(struct pt_regs *regs, int tl) + + printk(KERN_EMERG "SUN4V-DTLB: Error at TPC[%lx], tl %d\n", + regs->tpc, tl); +- printk(KERN_EMERG "SUN4V-DTLB: TPC<%pS>\n", (void *) regs->tpc); ++ printk(KERN_EMERG "SUN4V-DTLB: TPC<%pA>\n", (void *) regs->tpc); + printk(KERN_EMERG "SUN4V-DTLB: O7[%lx]\n", regs->u_regs[UREG_I7]); +- printk(KERN_EMERG "SUN4V-DTLB: O7<%pS>\n", ++ printk(KERN_EMERG "SUN4V-DTLB: O7<%pA>\n", + (void *) regs->u_regs[UREG_I7]); + printk(KERN_EMERG "SUN4V-DTLB: vaddr[%lx] ctx[%lx] " + "pte[%lx] error[%lx]\n", +@@ -2195,13 +2206,13 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp) + fp = (unsigned long)sf->fp + STACK_BIAS; + } + +- printk(" [%016lx] %pS\n", pc, (void *) pc); ++ printk(" [%016lx] %pA\n", pc, (void *) pc); + #ifdef CONFIG_FUNCTION_GRAPH_TRACER + if ((pc + 8UL) == (unsigned long) &return_to_handler) { + int index = tsk->curr_ret_stack; + if (tsk->ret_stack && index >= graph) { + pc = tsk->ret_stack[index - graph].ret; +- printk(" [%016lx] %pS\n", pc, (void *) pc); ++ printk(" [%016lx] %pA\n", pc, (void *) pc); + graph++; + } + } +@@ -2226,6 +2237,8 @@ static inline struct reg_window *kernel_stack_up(struct reg_window *rw) + return (struct reg_window *) (fp + STACK_BIAS); + } + ++extern void gr_handle_kernel_exploit(void); ++ + void die_if_kernel(char *str, struct pt_regs *regs) + { + static int die_counter; +@@ -2254,7 +2267,7 @@ void die_if_kernel(char *str, struct pt_regs *regs) + while (rw && + count++ < 30 && + kstack_valid(tp, (unsigned long) rw)) { +- printk("Caller[%016lx]: %pS\n", rw->ins[7], ++ printk("Caller[%016lx]: %pA\n", rw->ins[7], + (void *) rw->ins[7]); + + rw = kernel_stack_up(rw); +@@ -2267,8 +2280,10 @@ void die_if_kernel(char *str, struct pt_regs *regs) + } + user_instruction_dump ((unsigned int __user *) regs->tpc); + } +- if (regs->tstate & TSTATE_PRIV) ++ if (regs->tstate & TSTATE_PRIV) { ++ gr_handle_kernel_exploit(); + do_exit(SIGKILL); ++ } + do_exit(SIGSEGV); + } + EXPORT_SYMBOL(die_if_kernel); +diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c +index dae85bc..af1e19d 100644 +--- a/arch/sparc/kernel/unaligned_64.c ++++ b/arch/sparc/kernel/unaligned_64.c +@@ -279,7 +279,7 @@ static void log_unaligned(struct pt_regs *regs) + static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5); + + if (__ratelimit(&ratelimit)) { +- printk("Kernel unaligned access at TPC[%lx] %pS\n", ++ printk("Kernel unaligned access at TPC[%lx] %pA\n", + regs->tpc, (void *) regs->tpc); + } + } +diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile +index a3fc437..fea9957 100644 +--- a/arch/sparc/lib/Makefile ++++ b/arch/sparc/lib/Makefile +@@ -2,7 +2,7 @@ + # + + asflags-y := -ansi -DST_DIV0=0x02 +-ccflags-y := -Werror ++#ccflags-y := -Werror + + lib-$(CONFIG_SPARC32) += mul.o rem.o sdiv.o udiv.o umul.o urem.o ashrdi3.o + lib-$(CONFIG_SPARC32) += memcpy.o memset.o +diff --git a/arch/sparc/lib/atomic_64.S b/arch/sparc/lib/atomic_64.S +index 59186e0..f747d7a 100644 +--- a/arch/sparc/lib/atomic_64.S ++++ b/arch/sparc/lib/atomic_64.S +@@ -18,7 +18,12 @@ + atomic_add: /* %o0 = increment, %o1 = atomic_ptr */ + BACKOFF_SETUP(%o2) + 1: lduw [%o1], %g1 +- add %g1, %o0, %g7 ++ addcc %g1, %o0, %g7 ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ tvs %icc, 6 ++#endif ++ + cas [%o1], %g1, %g7 + cmp %g1, %g7 + bne,pn %icc, BACKOFF_LABEL(2f, 1b) +@@ -28,12 +33,32 @@ atomic_add: /* %o0 = increment, %o1 = atomic_ptr */ + 2: BACKOFF_SPIN(%o2, %o3, 1b) + .size atomic_add, .-atomic_add + ++ .globl atomic_add_unchecked ++ .type atomic_add_unchecked,#function ++atomic_add_unchecked: /* %o0 = increment, %o1 = atomic_ptr */ ++ BACKOFF_SETUP(%o2) ++1: lduw [%o1], %g1 ++ add %g1, %o0, %g7 ++ cas [%o1], %g1, %g7 ++ cmp %g1, %g7 ++ bne,pn %icc, 2f ++ nop ++ retl ++ nop ++2: BACKOFF_SPIN(%o2, %o3, 1b) ++ .size atomic_add_unchecked, .-atomic_add_unchecked ++ + .globl atomic_sub + .type atomic_sub,#function + atomic_sub: /* %o0 = decrement, %o1 = atomic_ptr */ + BACKOFF_SETUP(%o2) + 1: lduw [%o1], %g1 +- sub %g1, %o0, %g7 ++ subcc %g1, %o0, %g7 ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ tvs %icc, 6 ++#endif ++ + cas [%o1], %g1, %g7 + cmp %g1, %g7 + bne,pn %icc, BACKOFF_LABEL(2f, 1b) +@@ -43,12 +68,32 @@ atomic_sub: /* %o0 = decrement, %o1 = atomic_ptr */ + 2: BACKOFF_SPIN(%o2, %o3, 1b) + .size atomic_sub, .-atomic_sub + ++ .globl atomic_sub_unchecked ++ .type atomic_sub_unchecked,#function ++atomic_sub_unchecked: /* %o0 = decrement, %o1 = atomic_ptr */ ++ BACKOFF_SETUP(%o2) ++1: lduw [%o1], %g1 ++ sub %g1, %o0, %g7 ++ cas [%o1], %g1, %g7 ++ cmp %g1, %g7 ++ bne,pn %icc, 2f ++ nop ++ retl ++ nop ++2: BACKOFF_SPIN(%o2, %o3, 1b) ++ .size atomic_sub_unchecked, .-atomic_sub_unchecked ++ + .globl atomic_add_ret + .type atomic_add_ret,#function + atomic_add_ret: /* %o0 = increment, %o1 = atomic_ptr */ + BACKOFF_SETUP(%o2) + 1: lduw [%o1], %g1 +- add %g1, %o0, %g7 ++ addcc %g1, %o0, %g7 ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ tvs %icc, 6 ++#endif ++ + cas [%o1], %g1, %g7 + cmp %g1, %g7 + bne,pn %icc, BACKOFF_LABEL(2f, 1b) +@@ -58,12 +103,33 @@ atomic_add_ret: /* %o0 = increment, %o1 = atomic_ptr */ + 2: BACKOFF_SPIN(%o2, %o3, 1b) + .size atomic_add_ret, .-atomic_add_ret + ++ .globl atomic_add_ret_unchecked ++ .type atomic_add_ret_unchecked,#function ++atomic_add_ret_unchecked: /* %o0 = increment, %o1 = atomic_ptr */ ++ BACKOFF_SETUP(%o2) ++1: lduw [%o1], %g1 ++ addcc %g1, %o0, %g7 ++ cas [%o1], %g1, %g7 ++ cmp %g1, %g7 ++ bne,pn %icc, 2f ++ add %g7, %o0, %g7 ++ sra %g7, 0, %o0 ++ retl ++ nop ++2: BACKOFF_SPIN(%o2, %o3, 1b) ++ .size atomic_add_ret_unchecked, .-atomic_add_ret_unchecked ++ + .globl atomic_sub_ret + .type atomic_sub_ret,#function + atomic_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */ + BACKOFF_SETUP(%o2) + 1: lduw [%o1], %g1 +- sub %g1, %o0, %g7 ++ subcc %g1, %o0, %g7 ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ tvs %icc, 6 ++#endif ++ + cas [%o1], %g1, %g7 + cmp %g1, %g7 + bne,pn %icc, BACKOFF_LABEL(2f, 1b) +@@ -78,7 +144,12 @@ atomic_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */ + atomic64_add: /* %o0 = increment, %o1 = atomic_ptr */ + BACKOFF_SETUP(%o2) + 1: ldx [%o1], %g1 +- add %g1, %o0, %g7 ++ addcc %g1, %o0, %g7 ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ tvs %xcc, 6 ++#endif ++ + casx [%o1], %g1, %g7 + cmp %g1, %g7 + bne,pn %xcc, BACKOFF_LABEL(2f, 1b) +@@ -88,12 +159,32 @@ atomic64_add: /* %o0 = increment, %o1 = atomic_ptr */ + 2: BACKOFF_SPIN(%o2, %o3, 1b) + .size atomic64_add, .-atomic64_add + ++ .globl atomic64_add_unchecked ++ .type atomic64_add_unchecked,#function ++atomic64_add_unchecked: /* %o0 = increment, %o1 = atomic_ptr */ ++ BACKOFF_SETUP(%o2) ++1: ldx [%o1], %g1 ++ addcc %g1, %o0, %g7 ++ casx [%o1], %g1, %g7 ++ cmp %g1, %g7 ++ bne,pn %xcc, 2f ++ nop ++ retl ++ nop ++2: BACKOFF_SPIN(%o2, %o3, 1b) ++ .size atomic64_add_unchecked, .-atomic64_add_unchecked ++ + .globl atomic64_sub + .type atomic64_sub,#function + atomic64_sub: /* %o0 = decrement, %o1 = atomic_ptr */ + BACKOFF_SETUP(%o2) + 1: ldx [%o1], %g1 +- sub %g1, %o0, %g7 ++ subcc %g1, %o0, %g7 ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ tvs %xcc, 6 ++#endif ++ + casx [%o1], %g1, %g7 + cmp %g1, %g7 + bne,pn %xcc, BACKOFF_LABEL(2f, 1b) +@@ -103,12 +194,32 @@ atomic64_sub: /* %o0 = decrement, %o1 = atomic_ptr */ + 2: BACKOFF_SPIN(%o2, %o3, 1b) + .size atomic64_sub, .-atomic64_sub + ++ .globl atomic64_sub_unchecked ++ .type atomic64_sub_unchecked,#function ++atomic64_sub_unchecked: /* %o0 = decrement, %o1 = atomic_ptr */ ++ BACKOFF_SETUP(%o2) ++1: ldx [%o1], %g1 ++ subcc %g1, %o0, %g7 ++ casx [%o1], %g1, %g7 ++ cmp %g1, %g7 ++ bne,pn %xcc, 2f ++ nop ++ retl ++ nop ++2: BACKOFF_SPIN(%o2, %o3, 1b) ++ .size atomic64_sub_unchecked, .-atomic64_sub_unchecked ++ + .globl atomic64_add_ret + .type atomic64_add_ret,#function + atomic64_add_ret: /* %o0 = increment, %o1 = atomic_ptr */ + BACKOFF_SETUP(%o2) + 1: ldx [%o1], %g1 +- add %g1, %o0, %g7 ++ addcc %g1, %o0, %g7 ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ tvs %xcc, 6 ++#endif ++ + casx [%o1], %g1, %g7 + cmp %g1, %g7 + bne,pn %xcc, BACKOFF_LABEL(2f, 1b) +@@ -118,12 +229,33 @@ atomic64_add_ret: /* %o0 = increment, %o1 = atomic_ptr */ + 2: BACKOFF_SPIN(%o2, %o3, 1b) + .size atomic64_add_ret, .-atomic64_add_ret + ++ .globl atomic64_add_ret_unchecked ++ .type atomic64_add_ret_unchecked,#function ++atomic64_add_ret_unchecked: /* %o0 = increment, %o1 = atomic_ptr */ ++ BACKOFF_SETUP(%o2) ++1: ldx [%o1], %g1 ++ addcc %g1, %o0, %g7 ++ casx [%o1], %g1, %g7 ++ cmp %g1, %g7 ++ bne,pn %xcc, 2f ++ add %g7, %o0, %g7 ++ mov %g7, %o0 ++ retl ++ nop ++2: BACKOFF_SPIN(%o2, %o3, 1b) ++ .size atomic64_add_ret_unchecked, .-atomic64_add_ret_unchecked ++ + .globl atomic64_sub_ret + .type atomic64_sub_ret,#function + atomic64_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */ + BACKOFF_SETUP(%o2) + 1: ldx [%o1], %g1 +- sub %g1, %o0, %g7 ++ subcc %g1, %o0, %g7 ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ tvs %xcc, 6 ++#endif ++ + casx [%o1], %g1, %g7 + cmp %g1, %g7 + bne,pn %xcc, BACKOFF_LABEL(2f, 1b) +diff --git a/arch/sparc/lib/ksyms.c b/arch/sparc/lib/ksyms.c +index f73c224..662af10 100644 +--- a/arch/sparc/lib/ksyms.c ++++ b/arch/sparc/lib/ksyms.c +@@ -136,12 +136,18 @@ EXPORT_SYMBOL(__downgrade_write); + + /* Atomic counter implementation. */ + EXPORT_SYMBOL(atomic_add); ++EXPORT_SYMBOL(atomic_add_unchecked); + EXPORT_SYMBOL(atomic_add_ret); ++EXPORT_SYMBOL(atomic_add_ret_unchecked); + EXPORT_SYMBOL(atomic_sub); ++EXPORT_SYMBOL(atomic_sub_unchecked); + EXPORT_SYMBOL(atomic_sub_ret); + EXPORT_SYMBOL(atomic64_add); ++EXPORT_SYMBOL(atomic64_add_unchecked); + EXPORT_SYMBOL(atomic64_add_ret); ++EXPORT_SYMBOL(atomic64_add_ret_unchecked); + EXPORT_SYMBOL(atomic64_sub); ++EXPORT_SYMBOL(atomic64_sub_unchecked); + EXPORT_SYMBOL(atomic64_sub_ret); + + /* Atomic bit operations. */ +diff --git a/arch/sparc/mm/Makefile b/arch/sparc/mm/Makefile +index 301421c..e2535d1 100644 +--- a/arch/sparc/mm/Makefile ++++ b/arch/sparc/mm/Makefile +@@ -2,7 +2,7 @@ + # + + asflags-y := -ansi +-ccflags-y := -Werror ++#ccflags-y := -Werror + + obj-$(CONFIG_SPARC64) += ultra.o tlb.o tsb.o gup.o + obj-y += fault_$(BITS).o +diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c +index df3155a..b6e32fa 100644 +--- a/arch/sparc/mm/fault_32.c ++++ b/arch/sparc/mm/fault_32.c +@@ -21,6 +21,9 @@ + #include <linux/perf_event.h> + #include <linux/interrupt.h> + #include <linux/kdebug.h> ++#include <linux/slab.h> ++#include <linux/pagemap.h> ++#include <linux/compiler.h> + + #include <asm/page.h> + #include <asm/pgtable.h> +@@ -207,6 +210,277 @@ static unsigned long compute_si_addr(struct pt_regs *regs, int text_fault) + return safe_compute_effective_address(regs, insn); + } + ++#ifdef CONFIG_PAX_PAGEEXEC ++#ifdef CONFIG_PAX_DLRESOLVE ++static void pax_emuplt_close(struct vm_area_struct *vma) ++{ ++ vma->vm_mm->call_dl_resolve = 0UL; ++} ++ ++static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf) ++{ ++ unsigned int *kaddr; ++ ++ vmf->page = alloc_page(GFP_HIGHUSER); ++ if (!vmf->page) ++ return VM_FAULT_OOM; ++ ++ kaddr = kmap(vmf->page); ++ memset(kaddr, 0, PAGE_SIZE); ++ kaddr[0] = 0x9DE3BFA8U; /* save */ ++ flush_dcache_page(vmf->page); ++ kunmap(vmf->page); ++ return VM_FAULT_MAJOR; ++} ++ ++static const struct vm_operations_struct pax_vm_ops = { ++ .close = pax_emuplt_close, ++ .fault = pax_emuplt_fault ++}; ++ ++static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr) ++{ ++ int ret; ++ ++ INIT_LIST_HEAD(&vma->anon_vma_chain); ++ vma->vm_mm = current->mm; ++ vma->vm_start = addr; ++ vma->vm_end = addr + PAGE_SIZE; ++ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC; ++ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); ++ vma->vm_ops = &pax_vm_ops; ++ ++ ret = insert_vm_struct(current->mm, vma); ++ if (ret) ++ return ret; ++ ++ ++current->mm->total_vm; ++ return 0; ++} ++#endif ++ ++/* ++ * PaX: decide what to do with offenders (regs->pc = fault address) ++ * ++ * returns 1 when task should be killed ++ * 2 when patched PLT trampoline was detected ++ * 3 when unpatched PLT trampoline was detected ++ */ ++static int pax_handle_fetch_fault(struct pt_regs *regs) ++{ ++ ++#ifdef CONFIG_PAX_EMUPLT ++ int err; ++ ++ do { /* PaX: patched PLT emulation #1 */ ++ unsigned int sethi1, sethi2, jmpl; ++ ++ err = get_user(sethi1, (unsigned int *)regs->pc); ++ err |= get_user(sethi2, (unsigned int *)(regs->pc+4)); ++ err |= get_user(jmpl, (unsigned int *)(regs->pc+8)); ++ ++ if (err) ++ break; ++ ++ if ((sethi1 & 0xFFC00000U) == 0x03000000U && ++ (sethi2 & 0xFFC00000U) == 0x03000000U && ++ (jmpl & 0xFFFFE000U) == 0x81C06000U) ++ { ++ unsigned int addr; ++ ++ regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10; ++ addr = regs->u_regs[UREG_G1]; ++ addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U); ++ regs->pc = addr; ++ regs->npc = addr+4; ++ return 2; ++ } ++ } while (0); ++ ++ do { /* PaX: patched PLT emulation #2 */ ++ unsigned int ba; ++ ++ err = get_user(ba, (unsigned int *)regs->pc); ++ ++ if (err) ++ break; ++ ++ if ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30480000U) { ++ unsigned int addr; ++ ++ if ((ba & 0xFFC00000U) == 0x30800000U) ++ addr = regs->pc + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2); ++ else ++ addr = regs->pc + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2); ++ regs->pc = addr; ++ regs->npc = addr+4; ++ return 2; ++ } ++ } while (0); ++ ++ do { /* PaX: patched PLT emulation #3 */ ++ unsigned int sethi, bajmpl, nop; ++ ++ err = get_user(sethi, (unsigned int *)regs->pc); ++ err |= get_user(bajmpl, (unsigned int *)(regs->pc+4)); ++ err |= get_user(nop, (unsigned int *)(regs->pc+8)); ++ ++ if (err) ++ break; ++ ++ if ((sethi & 0xFFC00000U) == 0x03000000U && ++ ((bajmpl & 0xFFFFE000U) == 0x81C06000U || (bajmpl & 0xFFF80000U) == 0x30480000U) && ++ nop == 0x01000000U) ++ { ++ unsigned int addr; ++ ++ addr = (sethi & 0x003FFFFFU) << 10; ++ regs->u_regs[UREG_G1] = addr; ++ if ((bajmpl & 0xFFFFE000U) == 0x81C06000U) ++ addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U); ++ else ++ addr = regs->pc + ((((bajmpl | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2); ++ regs->pc = addr; ++ regs->npc = addr+4; ++ return 2; ++ } ++ } while (0); ++ ++ do { /* PaX: unpatched PLT emulation step 1 */ ++ unsigned int sethi, ba, nop; ++ ++ err = get_user(sethi, (unsigned int *)regs->pc); ++ err |= get_user(ba, (unsigned int *)(regs->pc+4)); ++ err |= get_user(nop, (unsigned int *)(regs->pc+8)); ++ ++ if (err) ++ break; ++ ++ if ((sethi & 0xFFC00000U) == 0x03000000U && ++ ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) && ++ nop == 0x01000000U) ++ { ++ unsigned int addr, save, call; ++ ++ if ((ba & 0xFFC00000U) == 0x30800000U) ++ addr = regs->pc + 4 + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2); ++ else ++ addr = regs->pc + 4 + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2); ++ ++ err = get_user(save, (unsigned int *)addr); ++ err |= get_user(call, (unsigned int *)(addr+4)); ++ err |= get_user(nop, (unsigned int *)(addr+8)); ++ if (err) ++ break; ++ ++#ifdef CONFIG_PAX_DLRESOLVE ++ if (save == 0x9DE3BFA8U && ++ (call & 0xC0000000U) == 0x40000000U && ++ nop == 0x01000000U) ++ { ++ struct vm_area_struct *vma; ++ unsigned long call_dl_resolve; ++ ++ down_read(&current->mm->mmap_sem); ++ call_dl_resolve = current->mm->call_dl_resolve; ++ up_read(&current->mm->mmap_sem); ++ if (likely(call_dl_resolve)) ++ goto emulate; ++ ++ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); ++ ++ down_write(&current->mm->mmap_sem); ++ if (current->mm->call_dl_resolve) { ++ call_dl_resolve = current->mm->call_dl_resolve; ++ up_write(&current->mm->mmap_sem); ++ if (vma) ++ kmem_cache_free(vm_area_cachep, vma); ++ goto emulate; ++ } ++ ++ call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE); ++ if (!vma || (call_dl_resolve & ~PAGE_MASK)) { ++ up_write(&current->mm->mmap_sem); ++ if (vma) ++ kmem_cache_free(vm_area_cachep, vma); ++ return 1; ++ } ++ ++ if (pax_insert_vma(vma, call_dl_resolve)) { ++ up_write(&current->mm->mmap_sem); ++ kmem_cache_free(vm_area_cachep, vma); ++ return 1; ++ } ++ ++ current->mm->call_dl_resolve = call_dl_resolve; ++ up_write(&current->mm->mmap_sem); ++ ++emulate: ++ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10; ++ regs->pc = call_dl_resolve; ++ regs->npc = addr+4; ++ return 3; ++ } ++#endif ++ ++ /* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */ ++ if ((save & 0xFFC00000U) == 0x05000000U && ++ (call & 0xFFFFE000U) == 0x85C0A000U && ++ nop == 0x01000000U) ++ { ++ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10; ++ regs->u_regs[UREG_G2] = addr + 4; ++ addr = (save & 0x003FFFFFU) << 10; ++ addr += (((call | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U); ++ regs->pc = addr; ++ regs->npc = addr+4; ++ return 3; ++ } ++ } ++ } while (0); ++ ++ do { /* PaX: unpatched PLT emulation step 2 */ ++ unsigned int save, call, nop; ++ ++ err = get_user(save, (unsigned int *)(regs->pc-4)); ++ err |= get_user(call, (unsigned int *)regs->pc); ++ err |= get_user(nop, (unsigned int *)(regs->pc+4)); ++ if (err) ++ break; ++ ++ if (save == 0x9DE3BFA8U && ++ (call & 0xC0000000U) == 0x40000000U && ++ nop == 0x01000000U) ++ { ++ unsigned int dl_resolve = regs->pc + ((((call | 0xC0000000U) ^ 0x20000000U) + 0x20000000U) << 2); ++ ++ regs->u_regs[UREG_RETPC] = regs->pc; ++ regs->pc = dl_resolve; ++ regs->npc = dl_resolve+4; ++ return 3; ++ } ++ } while (0); ++#endif ++ ++ return 1; ++} ++ ++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) ++{ ++ unsigned long i; ++ ++ printk(KERN_ERR "PAX: bytes at PC: "); ++ for (i = 0; i < 8; i++) { ++ unsigned int c; ++ if (get_user(c, (unsigned int *)pc+i)) ++ printk(KERN_CONT "???????? "); ++ else ++ printk(KERN_CONT "%08x ", c); ++ } ++ printk("\n"); ++} ++#endif ++ + static noinline void do_fault_siginfo(int code, int sig, struct pt_regs *regs, + int text_fault) + { +@@ -282,6 +556,24 @@ good_area: + if(!(vma->vm_flags & VM_WRITE)) + goto bad_area; + } else { ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && text_fault && !(vma->vm_flags & VM_EXEC)) { ++ up_read(&mm->mmap_sem); ++ switch (pax_handle_fetch_fault(regs)) { ++ ++#ifdef CONFIG_PAX_EMUPLT ++ case 2: ++ case 3: ++ return; ++#endif ++ ++ } ++ pax_report_fault(regs, (void *)regs->pc, (void *)regs->u_regs[UREG_FP]); ++ do_group_exit(SIGKILL); ++ } ++#endif ++ + /* Allow reads even for write-only mappings */ + if(!(vma->vm_flags & (VM_READ | VM_EXEC))) + goto bad_area; +diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c +index 1fe0429..8dd5dd5 100644 +--- a/arch/sparc/mm/fault_64.c ++++ b/arch/sparc/mm/fault_64.c +@@ -21,6 +21,9 @@ + #include <linux/kprobes.h> + #include <linux/kdebug.h> + #include <linux/percpu.h> ++#include <linux/slab.h> ++#include <linux/pagemap.h> ++#include <linux/compiler.h> + + #include <asm/page.h> + #include <asm/pgtable.h> +@@ -74,7 +77,7 @@ static void __kprobes bad_kernel_pc(struct pt_regs *regs, unsigned long vaddr) + printk(KERN_CRIT "OOPS: Bogus kernel PC [%016lx] in fault handler\n", + regs->tpc); + printk(KERN_CRIT "OOPS: RPC [%016lx]\n", regs->u_regs[15]); +- printk("OOPS: RPC <%pS>\n", (void *) regs->u_regs[15]); ++ printk("OOPS: RPC <%pA>\n", (void *) regs->u_regs[15]); + printk(KERN_CRIT "OOPS: Fault was to vaddr[%lx]\n", vaddr); + dump_stack(); + unhandled_fault(regs->tpc, current, regs); +@@ -272,6 +275,466 @@ static void noinline __kprobes bogus_32bit_fault_address(struct pt_regs *regs, + show_regs(regs); + } + ++#ifdef CONFIG_PAX_PAGEEXEC ++#ifdef CONFIG_PAX_DLRESOLVE ++static void pax_emuplt_close(struct vm_area_struct *vma) ++{ ++ vma->vm_mm->call_dl_resolve = 0UL; ++} ++ ++static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf) ++{ ++ unsigned int *kaddr; ++ ++ vmf->page = alloc_page(GFP_HIGHUSER); ++ if (!vmf->page) ++ return VM_FAULT_OOM; ++ ++ kaddr = kmap(vmf->page); ++ memset(kaddr, 0, PAGE_SIZE); ++ kaddr[0] = 0x9DE3BFA8U; /* save */ ++ flush_dcache_page(vmf->page); ++ kunmap(vmf->page); ++ return VM_FAULT_MAJOR; ++} ++ ++static const struct vm_operations_struct pax_vm_ops = { ++ .close = pax_emuplt_close, ++ .fault = pax_emuplt_fault ++}; ++ ++static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr) ++{ ++ int ret; ++ ++ INIT_LIST_HEAD(&vma->anon_vma_chain); ++ vma->vm_mm = current->mm; ++ vma->vm_start = addr; ++ vma->vm_end = addr + PAGE_SIZE; ++ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC; ++ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); ++ vma->vm_ops = &pax_vm_ops; ++ ++ ret = insert_vm_struct(current->mm, vma); ++ if (ret) ++ return ret; ++ ++ ++current->mm->total_vm; ++ return 0; ++} ++#endif ++ ++/* ++ * PaX: decide what to do with offenders (regs->tpc = fault address) ++ * ++ * returns 1 when task should be killed ++ * 2 when patched PLT trampoline was detected ++ * 3 when unpatched PLT trampoline was detected ++ */ ++static int pax_handle_fetch_fault(struct pt_regs *regs) ++{ ++ ++#ifdef CONFIG_PAX_EMUPLT ++ int err; ++ ++ do { /* PaX: patched PLT emulation #1 */ ++ unsigned int sethi1, sethi2, jmpl; ++ ++ err = get_user(sethi1, (unsigned int *)regs->tpc); ++ err |= get_user(sethi2, (unsigned int *)(regs->tpc+4)); ++ err |= get_user(jmpl, (unsigned int *)(regs->tpc+8)); ++ ++ if (err) ++ break; ++ ++ if ((sethi1 & 0xFFC00000U) == 0x03000000U && ++ (sethi2 & 0xFFC00000U) == 0x03000000U && ++ (jmpl & 0xFFFFE000U) == 0x81C06000U) ++ { ++ unsigned long addr; ++ ++ regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10; ++ addr = regs->u_regs[UREG_G1]; ++ addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL); ++ ++ if (test_thread_flag(TIF_32BIT)) ++ addr &= 0xFFFFFFFFUL; ++ ++ regs->tpc = addr; ++ regs->tnpc = addr+4; ++ return 2; ++ } ++ } while (0); ++ ++ do { /* PaX: patched PLT emulation #2 */ ++ unsigned int ba; ++ ++ err = get_user(ba, (unsigned int *)regs->tpc); ++ ++ if (err) ++ break; ++ ++ if ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30480000U) { ++ unsigned long addr; ++ ++ if ((ba & 0xFFC00000U) == 0x30800000U) ++ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2); ++ else ++ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2); ++ ++ if (test_thread_flag(TIF_32BIT)) ++ addr &= 0xFFFFFFFFUL; ++ ++ regs->tpc = addr; ++ regs->tnpc = addr+4; ++ return 2; ++ } ++ } while (0); ++ ++ do { /* PaX: patched PLT emulation #3 */ ++ unsigned int sethi, bajmpl, nop; ++ ++ err = get_user(sethi, (unsigned int *)regs->tpc); ++ err |= get_user(bajmpl, (unsigned int *)(regs->tpc+4)); ++ err |= get_user(nop, (unsigned int *)(regs->tpc+8)); ++ ++ if (err) ++ break; ++ ++ if ((sethi & 0xFFC00000U) == 0x03000000U && ++ ((bajmpl & 0xFFFFE000U) == 0x81C06000U || (bajmpl & 0xFFF80000U) == 0x30480000U) && ++ nop == 0x01000000U) ++ { ++ unsigned long addr; ++ ++ addr = (sethi & 0x003FFFFFU) << 10; ++ regs->u_regs[UREG_G1] = addr; ++ if ((bajmpl & 0xFFFFE000U) == 0x81C06000U) ++ addr += (((bajmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL); ++ else ++ addr = regs->tpc + ((((bajmpl | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2); ++ ++ if (test_thread_flag(TIF_32BIT)) ++ addr &= 0xFFFFFFFFUL; ++ ++ regs->tpc = addr; ++ regs->tnpc = addr+4; ++ return 2; ++ } ++ } while (0); ++ ++ do { /* PaX: patched PLT emulation #4 */ ++ unsigned int sethi, mov1, call, mov2; ++ ++ err = get_user(sethi, (unsigned int *)regs->tpc); ++ err |= get_user(mov1, (unsigned int *)(regs->tpc+4)); ++ err |= get_user(call, (unsigned int *)(regs->tpc+8)); ++ err |= get_user(mov2, (unsigned int *)(regs->tpc+12)); ++ ++ if (err) ++ break; ++ ++ if ((sethi & 0xFFC00000U) == 0x03000000U && ++ mov1 == 0x8210000FU && ++ (call & 0xC0000000U) == 0x40000000U && ++ mov2 == 0x9E100001U) ++ { ++ unsigned long addr; ++ ++ regs->u_regs[UREG_G1] = regs->u_regs[UREG_RETPC]; ++ addr = regs->tpc + 4 + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2); ++ ++ if (test_thread_flag(TIF_32BIT)) ++ addr &= 0xFFFFFFFFUL; ++ ++ regs->tpc = addr; ++ regs->tnpc = addr+4; ++ return 2; ++ } ++ } while (0); ++ ++ do { /* PaX: patched PLT emulation #5 */ ++ unsigned int sethi, sethi1, sethi2, or1, or2, sllx, jmpl, nop; ++ ++ err = get_user(sethi, (unsigned int *)regs->tpc); ++ err |= get_user(sethi1, (unsigned int *)(regs->tpc+4)); ++ err |= get_user(sethi2, (unsigned int *)(regs->tpc+8)); ++ err |= get_user(or1, (unsigned int *)(regs->tpc+12)); ++ err |= get_user(or2, (unsigned int *)(regs->tpc+16)); ++ err |= get_user(sllx, (unsigned int *)(regs->tpc+20)); ++ err |= get_user(jmpl, (unsigned int *)(regs->tpc+24)); ++ err |= get_user(nop, (unsigned int *)(regs->tpc+28)); ++ ++ if (err) ++ break; ++ ++ if ((sethi & 0xFFC00000U) == 0x03000000U && ++ (sethi1 & 0xFFC00000U) == 0x03000000U && ++ (sethi2 & 0xFFC00000U) == 0x0B000000U && ++ (or1 & 0xFFFFE000U) == 0x82106000U && ++ (or2 & 0xFFFFE000U) == 0x8A116000U && ++ sllx == 0x83287020U && ++ jmpl == 0x81C04005U && ++ nop == 0x01000000U) ++ { ++ unsigned long addr; ++ ++ regs->u_regs[UREG_G1] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU); ++ regs->u_regs[UREG_G1] <<= 32; ++ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU); ++ addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5]; ++ regs->tpc = addr; ++ regs->tnpc = addr+4; ++ return 2; ++ } ++ } while (0); ++ ++ do { /* PaX: patched PLT emulation #6 */ ++ unsigned int sethi, sethi1, sethi2, sllx, or, jmpl, nop; ++ ++ err = get_user(sethi, (unsigned int *)regs->tpc); ++ err |= get_user(sethi1, (unsigned int *)(regs->tpc+4)); ++ err |= get_user(sethi2, (unsigned int *)(regs->tpc+8)); ++ err |= get_user(sllx, (unsigned int *)(regs->tpc+12)); ++ err |= get_user(or, (unsigned int *)(regs->tpc+16)); ++ err |= get_user(jmpl, (unsigned int *)(regs->tpc+20)); ++ err |= get_user(nop, (unsigned int *)(regs->tpc+24)); ++ ++ if (err) ++ break; ++ ++ if ((sethi & 0xFFC00000U) == 0x03000000U && ++ (sethi1 & 0xFFC00000U) == 0x03000000U && ++ (sethi2 & 0xFFC00000U) == 0x0B000000U && ++ sllx == 0x83287020U && ++ (or & 0xFFFFE000U) == 0x8A116000U && ++ jmpl == 0x81C04005U && ++ nop == 0x01000000U) ++ { ++ unsigned long addr; ++ ++ regs->u_regs[UREG_G1] = (sethi1 & 0x003FFFFFU) << 10; ++ regs->u_regs[UREG_G1] <<= 32; ++ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or & 0x3FFU); ++ addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5]; ++ regs->tpc = addr; ++ regs->tnpc = addr+4; ++ return 2; ++ } ++ } while (0); ++ ++ do { /* PaX: unpatched PLT emulation step 1 */ ++ unsigned int sethi, ba, nop; ++ ++ err = get_user(sethi, (unsigned int *)regs->tpc); ++ err |= get_user(ba, (unsigned int *)(regs->tpc+4)); ++ err |= get_user(nop, (unsigned int *)(regs->tpc+8)); ++ ++ if (err) ++ break; ++ ++ if ((sethi & 0xFFC00000U) == 0x03000000U && ++ ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) && ++ nop == 0x01000000U) ++ { ++ unsigned long addr; ++ unsigned int save, call; ++ unsigned int sethi1, sethi2, or1, or2, sllx, add, jmpl; ++ ++ if ((ba & 0xFFC00000U) == 0x30800000U) ++ addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2); ++ else ++ addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2); ++ ++ if (test_thread_flag(TIF_32BIT)) ++ addr &= 0xFFFFFFFFUL; ++ ++ err = get_user(save, (unsigned int *)addr); ++ err |= get_user(call, (unsigned int *)(addr+4)); ++ err |= get_user(nop, (unsigned int *)(addr+8)); ++ if (err) ++ break; ++ ++#ifdef CONFIG_PAX_DLRESOLVE ++ if (save == 0x9DE3BFA8U && ++ (call & 0xC0000000U) == 0x40000000U && ++ nop == 0x01000000U) ++ { ++ struct vm_area_struct *vma; ++ unsigned long call_dl_resolve; ++ ++ down_read(&current->mm->mmap_sem); ++ call_dl_resolve = current->mm->call_dl_resolve; ++ up_read(&current->mm->mmap_sem); ++ if (likely(call_dl_resolve)) ++ goto emulate; ++ ++ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); ++ ++ down_write(&current->mm->mmap_sem); ++ if (current->mm->call_dl_resolve) { ++ call_dl_resolve = current->mm->call_dl_resolve; ++ up_write(&current->mm->mmap_sem); ++ if (vma) ++ kmem_cache_free(vm_area_cachep, vma); ++ goto emulate; ++ } ++ ++ call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE); ++ if (!vma || (call_dl_resolve & ~PAGE_MASK)) { ++ up_write(&current->mm->mmap_sem); ++ if (vma) ++ kmem_cache_free(vm_area_cachep, vma); ++ return 1; ++ } ++ ++ if (pax_insert_vma(vma, call_dl_resolve)) { ++ up_write(&current->mm->mmap_sem); ++ kmem_cache_free(vm_area_cachep, vma); ++ return 1; ++ } ++ ++ current->mm->call_dl_resolve = call_dl_resolve; ++ up_write(&current->mm->mmap_sem); ++ ++emulate: ++ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10; ++ regs->tpc = call_dl_resolve; ++ regs->tnpc = addr+4; ++ return 3; ++ } ++#endif ++ ++ /* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */ ++ if ((save & 0xFFC00000U) == 0x05000000U && ++ (call & 0xFFFFE000U) == 0x85C0A000U && ++ nop == 0x01000000U) ++ { ++ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10; ++ regs->u_regs[UREG_G2] = addr + 4; ++ addr = (save & 0x003FFFFFU) << 10; ++ addr += (((call | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL); ++ ++ if (test_thread_flag(TIF_32BIT)) ++ addr &= 0xFFFFFFFFUL; ++ ++ regs->tpc = addr; ++ regs->tnpc = addr+4; ++ return 3; ++ } ++ ++ /* PaX: 64-bit PLT stub */ ++ err = get_user(sethi1, (unsigned int *)addr); ++ err |= get_user(sethi2, (unsigned int *)(addr+4)); ++ err |= get_user(or1, (unsigned int *)(addr+8)); ++ err |= get_user(or2, (unsigned int *)(addr+12)); ++ err |= get_user(sllx, (unsigned int *)(addr+16)); ++ err |= get_user(add, (unsigned int *)(addr+20)); ++ err |= get_user(jmpl, (unsigned int *)(addr+24)); ++ err |= get_user(nop, (unsigned int *)(addr+28)); ++ if (err) ++ break; ++ ++ if ((sethi1 & 0xFFC00000U) == 0x09000000U && ++ (sethi2 & 0xFFC00000U) == 0x0B000000U && ++ (or1 & 0xFFFFE000U) == 0x88112000U && ++ (or2 & 0xFFFFE000U) == 0x8A116000U && ++ sllx == 0x89293020U && ++ add == 0x8A010005U && ++ jmpl == 0x89C14000U && ++ nop == 0x01000000U) ++ { ++ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10; ++ regs->u_regs[UREG_G4] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU); ++ regs->u_regs[UREG_G4] <<= 32; ++ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU); ++ regs->u_regs[UREG_G5] += regs->u_regs[UREG_G4]; ++ regs->u_regs[UREG_G4] = addr + 24; ++ addr = regs->u_regs[UREG_G5]; ++ regs->tpc = addr; ++ regs->tnpc = addr+4; ++ return 3; ++ } ++ } ++ } while (0); ++ ++#ifdef CONFIG_PAX_DLRESOLVE ++ do { /* PaX: unpatched PLT emulation step 2 */ ++ unsigned int save, call, nop; ++ ++ err = get_user(save, (unsigned int *)(regs->tpc-4)); ++ err |= get_user(call, (unsigned int *)regs->tpc); ++ err |= get_user(nop, (unsigned int *)(regs->tpc+4)); ++ if (err) ++ break; ++ ++ if (save == 0x9DE3BFA8U && ++ (call & 0xC0000000U) == 0x40000000U && ++ nop == 0x01000000U) ++ { ++ unsigned long dl_resolve = regs->tpc + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2); ++ ++ if (test_thread_flag(TIF_32BIT)) ++ dl_resolve &= 0xFFFFFFFFUL; ++ ++ regs->u_regs[UREG_RETPC] = regs->tpc; ++ regs->tpc = dl_resolve; ++ regs->tnpc = dl_resolve+4; ++ return 3; ++ } ++ } while (0); ++#endif ++ ++ do { /* PaX: patched PLT emulation #7, must be AFTER the unpatched PLT emulation */ ++ unsigned int sethi, ba, nop; ++ ++ err = get_user(sethi, (unsigned int *)regs->tpc); ++ err |= get_user(ba, (unsigned int *)(regs->tpc+4)); ++ err |= get_user(nop, (unsigned int *)(regs->tpc+8)); ++ ++ if (err) ++ break; ++ ++ if ((sethi & 0xFFC00000U) == 0x03000000U && ++ (ba & 0xFFF00000U) == 0x30600000U && ++ nop == 0x01000000U) ++ { ++ unsigned long addr; ++ ++ addr = (sethi & 0x003FFFFFU) << 10; ++ regs->u_regs[UREG_G1] = addr; ++ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2); ++ ++ if (test_thread_flag(TIF_32BIT)) ++ addr &= 0xFFFFFFFFUL; ++ ++ regs->tpc = addr; ++ regs->tnpc = addr+4; ++ return 2; ++ } ++ } while (0); ++ ++#endif ++ ++ return 1; ++} ++ ++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) ++{ ++ unsigned long i; ++ ++ printk(KERN_ERR "PAX: bytes at PC: "); ++ for (i = 0; i < 8; i++) { ++ unsigned int c; ++ if (get_user(c, (unsigned int *)pc+i)) ++ printk(KERN_CONT "???????? "); ++ else ++ printk(KERN_CONT "%08x ", c); ++ } ++ printk("\n"); ++} ++#endif ++ + asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs) + { + struct mm_struct *mm = current->mm; +@@ -343,6 +806,29 @@ retry: + if (!vma) + goto bad_area; + ++#ifdef CONFIG_PAX_PAGEEXEC ++ /* PaX: detect ITLB misses on non-exec pages */ ++ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && vma->vm_start <= address && ++ !(vma->vm_flags & VM_EXEC) && (fault_code & FAULT_CODE_ITLB)) ++ { ++ if (address != regs->tpc) ++ goto good_area; ++ ++ up_read(&mm->mmap_sem); ++ switch (pax_handle_fetch_fault(regs)) { ++ ++#ifdef CONFIG_PAX_EMUPLT ++ case 2: ++ case 3: ++ return; ++#endif ++ ++ } ++ pax_report_fault(regs, (void *)regs->tpc, (void *)(regs->u_regs[UREG_FP] + STACK_BIAS)); ++ do_group_exit(SIGKILL); ++ } ++#endif ++ + /* Pure DTLB misses do not tell us whether the fault causing + * load/store/atomic was a write or not, it only says that there + * was no match. So in such a case we (carefully) read the +diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c +index 07e1453..0a7d9e9 100644 +--- a/arch/sparc/mm/hugetlbpage.c ++++ b/arch/sparc/mm/hugetlbpage.c +@@ -67,7 +67,7 @@ full_search: + } + return -ENOMEM; + } +- if (likely(!vma || addr + len <= vma->vm_start)) { ++ if (likely(check_heap_stack_gap(vma, addr, len))) { + /* + * Remember the place where we stopped the search: + */ +@@ -106,7 +106,7 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, + /* make sure it can fit in the remaining address space */ + if (likely(addr > len)) { + vma = find_vma(mm, addr-len); +- if (!vma || addr <= vma->vm_start) { ++ if (check_heap_stack_gap(vma, addr - len, len)) { + /* remember the address as a hint for next time */ + return (mm->free_area_cache = addr-len); + } +@@ -115,16 +115,17 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, + if (unlikely(mm->mmap_base < len)) + goto bottomup; + +- addr = (mm->mmap_base-len) & HPAGE_MASK; ++ addr = mm->mmap_base - len; + + do { ++ addr &= HPAGE_MASK; + /* + * Lookup failure means no vma is above this address, + * else if new region fits below vma->vm_start, + * return with success: + */ + vma = find_vma(mm, addr); +- if (likely(!vma || addr+len <= vma->vm_start)) { ++ if (likely(check_heap_stack_gap(vma, addr, len))) { + /* remember the address as a hint for next time */ + return (mm->free_area_cache = addr); + } +@@ -134,8 +135,8 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, + mm->cached_hole_size = vma->vm_start - addr; + + /* try just below the current vma->vm_start */ +- addr = (vma->vm_start-len) & HPAGE_MASK; +- } while (likely(len < vma->vm_start)); ++ addr = skip_heap_stack_gap(vma, len); ++ } while (!IS_ERR_VALUE(addr)); + + bottomup: + /* +@@ -181,8 +182,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr, + if (addr) { + addr = ALIGN(addr, HPAGE_SIZE); + vma = find_vma(mm, addr); +- if (task_size - len >= addr && +- (!vma || addr + len <= vma->vm_start)) ++ if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len)) + return addr; + } + if (mm->get_unmapped_area == arch_get_unmapped_area) +diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c +index c5f9021..7591bae 100644 +--- a/arch/sparc/mm/init_32.c ++++ b/arch/sparc/mm/init_32.c +@@ -315,6 +315,9 @@ extern void device_scan(void); + pgprot_t PAGE_SHARED __read_mostly; + EXPORT_SYMBOL(PAGE_SHARED); + ++pgprot_t PAGE_SHARED_NOEXEC __read_mostly; ++EXPORT_SYMBOL(PAGE_SHARED_NOEXEC); ++ + void __init paging_init(void) + { + switch(sparc_cpu_model) { +@@ -343,17 +346,17 @@ void __init paging_init(void) + + /* Initialize the protection map with non-constant, MMU dependent values. */ + protection_map[0] = PAGE_NONE; +- protection_map[1] = PAGE_READONLY; +- protection_map[2] = PAGE_COPY; +- protection_map[3] = PAGE_COPY; ++ protection_map[1] = PAGE_READONLY_NOEXEC; ++ protection_map[2] = PAGE_COPY_NOEXEC; ++ protection_map[3] = PAGE_COPY_NOEXEC; + protection_map[4] = PAGE_READONLY; + protection_map[5] = PAGE_READONLY; + protection_map[6] = PAGE_COPY; + protection_map[7] = PAGE_COPY; + protection_map[8] = PAGE_NONE; +- protection_map[9] = PAGE_READONLY; +- protection_map[10] = PAGE_SHARED; +- protection_map[11] = PAGE_SHARED; ++ protection_map[9] = PAGE_READONLY_NOEXEC; ++ protection_map[10] = PAGE_SHARED_NOEXEC; ++ protection_map[11] = PAGE_SHARED_NOEXEC; + protection_map[12] = PAGE_READONLY; + protection_map[13] = PAGE_READONLY; + protection_map[14] = PAGE_SHARED; +diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c +index cbef74e..c38fead 100644 +--- a/arch/sparc/mm/srmmu.c ++++ b/arch/sparc/mm/srmmu.c +@@ -2200,6 +2200,13 @@ void __init ld_mmu_srmmu(void) + PAGE_SHARED = pgprot_val(SRMMU_PAGE_SHARED); + BTFIXUPSET_INT(page_copy, pgprot_val(SRMMU_PAGE_COPY)); + BTFIXUPSET_INT(page_readonly, pgprot_val(SRMMU_PAGE_RDONLY)); ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++ PAGE_SHARED_NOEXEC = pgprot_val(SRMMU_PAGE_SHARED_NOEXEC); ++ BTFIXUPSET_INT(page_copy_noexec, pgprot_val(SRMMU_PAGE_COPY_NOEXEC)); ++ BTFIXUPSET_INT(page_readonly_noexec, pgprot_val(SRMMU_PAGE_RDONLY_NOEXEC)); ++#endif ++ + BTFIXUPSET_INT(page_kernel, pgprot_val(SRMMU_PAGE_KERNEL)); + page_kernel = pgprot_val(SRMMU_PAGE_KERNEL); + +diff --git a/arch/tile/include/asm/atomic_64.h b/arch/tile/include/asm/atomic_64.h +index f4500c6..889656c 100644 +--- a/arch/tile/include/asm/atomic_64.h ++++ b/arch/tile/include/asm/atomic_64.h +@@ -143,6 +143,16 @@ static inline long atomic64_add_unless(atomic64_t *v, long a, long u) + + #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) + ++#define atomic64_read_unchecked(v) atomic64_read(v) ++#define atomic64_set_unchecked(v, i) atomic64_set((v), (i)) ++#define atomic64_add_unchecked(a, v) atomic64_add((a), (v)) ++#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v)) ++#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v)) ++#define atomic64_inc_unchecked(v) atomic64_inc(v) ++#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v) ++#define atomic64_dec_unchecked(v) atomic64_dec(v) ++#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n)) ++ + /* Atomic dec and inc don't implement barrier, so provide them if needed. */ + #define smp_mb__before_atomic_dec() smp_mb() + #define smp_mb__after_atomic_dec() smp_mb() +diff --git a/arch/tile/include/asm/cache.h b/arch/tile/include/asm/cache.h +index 392e533..536b092 100644 +--- a/arch/tile/include/asm/cache.h ++++ b/arch/tile/include/asm/cache.h +@@ -15,11 +15,12 @@ + #ifndef _ASM_TILE_CACHE_H + #define _ASM_TILE_CACHE_H + ++#include <linux/const.h> + #include <arch/chip.h> + + /* bytes per L1 data cache line */ + #define L1_CACHE_SHIFT CHIP_L1D_LOG_LINE_SIZE() +-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + /* bytes per L2 cache line */ + #define L2_CACHE_SHIFT CHIP_L2_LOG_LINE_SIZE() +diff --git a/arch/tile/include/asm/uaccess.h b/arch/tile/include/asm/uaccess.h +index ef34d2c..d6ce60c 100644 +--- a/arch/tile/include/asm/uaccess.h ++++ b/arch/tile/include/asm/uaccess.h +@@ -361,9 +361,9 @@ static inline unsigned long __must_check copy_from_user(void *to, + const void __user *from, + unsigned long n) + { +- int sz = __compiletime_object_size(to); ++ size_t sz = __compiletime_object_size(to); + +- if (likely(sz == -1 || sz >= n)) ++ if (likely(sz == (size_t)-1 || sz >= n)) + n = _copy_from_user(to, from, n); + else + copy_from_user_overflow(); +diff --git a/arch/um/Makefile b/arch/um/Makefile +index 55c0661..86ad413 100644 +--- a/arch/um/Makefile ++++ b/arch/um/Makefile +@@ -62,6 +62,10 @@ USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -D__KERNEL__,,\ + $(patsubst -I%,,$(KBUILD_CFLAGS)))) $(ARCH_INCLUDE) $(MODE_INCLUDE) \ + $(filter -I%,$(CFLAGS)) -D_FILE_OFFSET_BITS=64 -idirafter include + ++ifdef CONSTIFY_PLUGIN ++USER_CFLAGS += $(CONSTIFY_PLUGIN) -fplugin-arg-constify_plugin-no-constify ++endif ++ + #This will adjust *FLAGS accordingly to the platform. + include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS) + +diff --git a/arch/um/include/asm/cache.h b/arch/um/include/asm/cache.h +index 19e1bdd..3665b77 100644 +--- a/arch/um/include/asm/cache.h ++++ b/arch/um/include/asm/cache.h +@@ -1,6 +1,7 @@ + #ifndef __UM_CACHE_H + #define __UM_CACHE_H + ++#include <linux/const.h> + + #if defined(CONFIG_UML_X86) && !defined(CONFIG_64BIT) + # define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT) +@@ -12,6 +13,6 @@ + # define L1_CACHE_SHIFT 5 + #endif + +-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + #endif +diff --git a/arch/um/include/asm/kmap_types.h b/arch/um/include/asm/kmap_types.h +index 6c03acd..a5e0215 100644 +--- a/arch/um/include/asm/kmap_types.h ++++ b/arch/um/include/asm/kmap_types.h +@@ -23,6 +23,7 @@ enum km_type { + KM_IRQ1, + KM_SOFTIRQ0, + KM_SOFTIRQ1, ++ KM_CLEARPAGE, + KM_TYPE_NR + }; + +diff --git a/arch/um/include/asm/page.h b/arch/um/include/asm/page.h +index 7cfc3ce..cbd1a58 100644 +--- a/arch/um/include/asm/page.h ++++ b/arch/um/include/asm/page.h +@@ -14,6 +14,9 @@ + #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) + #define PAGE_MASK (~(PAGE_SIZE-1)) + ++#define ktla_ktva(addr) (addr) ++#define ktva_ktla(addr) (addr) ++ + #ifndef __ASSEMBLY__ + + struct page; +diff --git a/arch/um/include/asm/pgtable-3level.h b/arch/um/include/asm/pgtable-3level.h +index 0032f92..cd151e0 100644 +--- a/arch/um/include/asm/pgtable-3level.h ++++ b/arch/um/include/asm/pgtable-3level.h +@@ -58,6 +58,7 @@ + #define pud_present(x) (pud_val(x) & _PAGE_PRESENT) + #define pud_populate(mm, pud, pmd) \ + set_pud(pud, __pud(_PAGE_TABLE + __pa(pmd))) ++#define pud_populate_kernel(mm, pud, pmd) pud_populate((mm), (pud), (pmd)) + + #ifdef CONFIG_64BIT + #define set_pud(pudptr, pudval) set_64bit((u64 *) (pudptr), pud_val(pudval)) +diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c +index 2b73ded..804f540 100644 +--- a/arch/um/kernel/process.c ++++ b/arch/um/kernel/process.c +@@ -404,22 +404,6 @@ int singlestepping(void * t) + return 2; + } + +-/* +- * Only x86 and x86_64 have an arch_align_stack(). +- * All other arches have "#define arch_align_stack(x) (x)" +- * in their asm/system.h +- * As this is included in UML from asm-um/system-generic.h, +- * we can use it to behave as the subarch does. +- */ +-#ifndef arch_align_stack +-unsigned long arch_align_stack(unsigned long sp) +-{ +- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) +- sp -= get_random_int() % 8192; +- return sp & ~0xf; +-} +-#endif +- + unsigned long get_wchan(struct task_struct *p) + { + unsigned long stack_page, sp, ip; +diff --git a/arch/unicore32/include/asm/cache.h b/arch/unicore32/include/asm/cache.h +index ad8f795..2c7eec6 100644 +--- a/arch/unicore32/include/asm/cache.h ++++ b/arch/unicore32/include/asm/cache.h +@@ -12,8 +12,10 @@ + #ifndef __UNICORE_CACHE_H__ + #define __UNICORE_CACHE_H__ + +-#define L1_CACHE_SHIFT (5) +-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) ++#include <linux/const.h> ++ ++#define L1_CACHE_SHIFT 5 ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + /* + * Memory returned by kmalloc() may be used for DMA, so we must make +diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig +index c9866b0..fe53aef 100644 +--- a/arch/x86/Kconfig ++++ b/arch/x86/Kconfig +@@ -229,7 +229,7 @@ config X86_HT + + config X86_32_LAZY_GS + def_bool y +- depends on X86_32 && !CC_STACKPROTECTOR ++ depends on X86_32 && !CC_STACKPROTECTOR && !PAX_MEMORY_UDEREF + + config ARCH_HWEIGHT_CFLAGS + string +@@ -1042,7 +1042,7 @@ choice + + config NOHIGHMEM + bool "off" +- depends on !X86_NUMAQ ++ depends on !X86_NUMAQ && !(PAX_PAGEEXEC && PAX_ENABLE_PAE) + ---help--- + Linux can use up to 64 Gigabytes of physical memory on x86 systems. + However, the address space of 32-bit x86 processors is only 4 +@@ -1079,7 +1079,7 @@ config NOHIGHMEM + + config HIGHMEM4G + bool "4GB" +- depends on !X86_NUMAQ ++ depends on !X86_NUMAQ && !(PAX_PAGEEXEC && PAX_ENABLE_PAE) + ---help--- + Select this if you have a 32-bit processor and between 1 and 4 + gigabytes of physical RAM. +@@ -1133,7 +1133,7 @@ config PAGE_OFFSET + hex + default 0xB0000000 if VMSPLIT_3G_OPT + default 0x80000000 if VMSPLIT_2G +- default 0x78000000 if VMSPLIT_2G_OPT ++ default 0x70000000 if VMSPLIT_2G_OPT + default 0x40000000 if VMSPLIT_1G + default 0xC0000000 + depends on X86_32 +@@ -1523,6 +1523,7 @@ config SECCOMP + + config CC_STACKPROTECTOR + bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)" ++ depends on X86_64 || !PAX_MEMORY_UDEREF + ---help--- + This option turns on the -fstack-protector GCC feature. This + feature puts, at the beginning of functions, a canary value on +@@ -1580,6 +1581,7 @@ config KEXEC_JUMP + config PHYSICAL_START + hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP) + default "0x1000000" ++ range 0x400000 0x40000000 + ---help--- + This gives the physical address where the kernel is loaded. + +@@ -1643,6 +1645,7 @@ config X86_NEED_RELOCS + config PHYSICAL_ALIGN + hex "Alignment value to which kernel should be aligned" if X86_32 + default "0x1000000" ++ range 0x400000 0x1000000 if PAX_KERNEXEC + range 0x2000 0x1000000 + ---help--- + This value puts the alignment restrictions on physical address +@@ -1674,9 +1677,10 @@ config HOTPLUG_CPU + Say N if you want to disable CPU hotplug. + + config COMPAT_VDSO +- def_bool y ++ def_bool n + prompt "Compat VDSO support" + depends on X86_32 || IA32_EMULATION ++ depends on !PAX_NOEXEC && !PAX_MEMORY_UDEREF + ---help--- + Map the 32-bit VDSO to the predictable old-style address too. + +diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu +index 706e12e..62e4feb 100644 +--- a/arch/x86/Kconfig.cpu ++++ b/arch/x86/Kconfig.cpu +@@ -334,7 +334,7 @@ config X86_PPRO_FENCE + + config X86_F00F_BUG + def_bool y +- depends on M586MMX || M586TSC || M586 || M486 || M386 ++ depends on (M586MMX || M586TSC || M586 || M486 || M386) && !PAX_KERNEXEC + + config X86_INVD_BUG + def_bool y +@@ -358,7 +358,7 @@ config X86_POPAD_OK + + config X86_ALIGNMENT_16 + def_bool y +- depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1 ++ depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK8 || MK7 || MK6 || MCORE2 || MPENTIUM4 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1 + + config X86_INTEL_USERCOPY + def_bool y +@@ -404,7 +404,7 @@ config X86_CMPXCHG64 + # generates cmov. + config X86_CMOV + def_bool y +- depends on (MK8 || MK7 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX) ++ depends on (MK8 || MK7 || MCORE2 || MPSC || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX) + + config X86_MINIMUM_CPU_FAMILY + int +diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug +index e46c214..ab62fd1 100644 +--- a/arch/x86/Kconfig.debug ++++ b/arch/x86/Kconfig.debug +@@ -84,7 +84,7 @@ config X86_PTDUMP + config DEBUG_RODATA + bool "Write protect kernel read-only data structures" + default y +- depends on DEBUG_KERNEL ++ depends on DEBUG_KERNEL && BROKEN + ---help--- + Mark the kernel read-only data as write-protected in the pagetables, + in order to catch accidental (and incorrect) writes to such const +@@ -102,7 +102,7 @@ config DEBUG_RODATA_TEST + + config DEBUG_SET_MODULE_RONX + bool "Set loadable kernel module data as NX and text as RO" +- depends on MODULES ++ depends on MODULES && BROKEN + ---help--- + This option helps catch unintended modifications to loadable + kernel module's text and read-only data. It also prevents execution +@@ -275,7 +275,7 @@ config OPTIMIZE_INLINING + + config DEBUG_STRICT_USER_COPY_CHECKS + bool "Strict copy size checks" +- depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING ++ depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING && !PAX_SIZE_OVERFLOW + ---help--- + Enabling this option turns a certain set of sanity checks for user + copy operations into compile time failures. +diff --git a/arch/x86/Makefile b/arch/x86/Makefile +index b1c611e..2c1a823 100644 +--- a/arch/x86/Makefile ++++ b/arch/x86/Makefile +@@ -46,6 +46,7 @@ else + UTS_MACHINE := x86_64 + CHECKFLAGS += -D__x86_64__ -m64 + ++ biarch := $(call cc-option,-m64) + KBUILD_AFLAGS += -m64 + KBUILD_CFLAGS += -m64 + +@@ -222,3 +223,12 @@ define archhelp + echo ' FDARGS="..." arguments for the booted kernel' + echo ' FDINITRD=file initrd for the booted kernel' + endef ++ ++define OLD_LD ++ ++*** ${VERSION}.${PATCHLEVEL} PaX kernels no longer build correctly with old versions of binutils. ++*** Please upgrade your binutils to 2.18 or newer ++endef ++ ++archprepare: ++ $(if $(LDFLAGS_BUILD_ID),,$(error $(OLD_LD))) +diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile +index 5a747dd..ff7b12c 100644 +--- a/arch/x86/boot/Makefile ++++ b/arch/x86/boot/Makefile +@@ -64,6 +64,9 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \ + $(call cc-option, -fno-stack-protector) \ + $(call cc-option, -mpreferred-stack-boundary=2) + KBUILD_CFLAGS += $(call cc-option, -m32) ++ifdef CONSTIFY_PLUGIN ++KBUILD_CFLAGS += $(CONSTIFY_PLUGIN) -fplugin-arg-constify_plugin-no-constify ++endif + KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ + GCOV_PROFILE := n + +diff --git a/arch/x86/boot/bitops.h b/arch/x86/boot/bitops.h +index 878e4b9..20537ab 100644 +--- a/arch/x86/boot/bitops.h ++++ b/arch/x86/boot/bitops.h +@@ -26,7 +26,7 @@ static inline int variable_test_bit(int nr, const void *addr) + u8 v; + const u32 *p = (const u32 *)addr; + +- asm("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr)); ++ asm volatile("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr)); + return v; + } + +@@ -37,7 +37,7 @@ static inline int variable_test_bit(int nr, const void *addr) + + static inline void set_bit(int nr, void *addr) + { +- asm("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr)); ++ asm volatile("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr)); + } + + #endif /* BOOT_BITOPS_H */ +diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h +index 18997e5..83d9c67 100644 +--- a/arch/x86/boot/boot.h ++++ b/arch/x86/boot/boot.h +@@ -85,7 +85,7 @@ static inline void io_delay(void) + static inline u16 ds(void) + { + u16 seg; +- asm("movw %%ds,%0" : "=rm" (seg)); ++ asm volatile("movw %%ds,%0" : "=rm" (seg)); + return seg; + } + +@@ -181,7 +181,7 @@ static inline void wrgs32(u32 v, addr_t addr) + static inline int memcmp(const void *s1, const void *s2, size_t len) + { + u8 diff; +- asm("repe; cmpsb; setnz %0" ++ asm volatile("repe; cmpsb; setnz %0" + : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len)); + return diff; + } +diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile +index e398bb5..3a382ca 100644 +--- a/arch/x86/boot/compressed/Makefile ++++ b/arch/x86/boot/compressed/Makefile +@@ -14,6 +14,9 @@ cflags-$(CONFIG_X86_64) := -mcmodel=small + KBUILD_CFLAGS += $(cflags-y) + KBUILD_CFLAGS += $(call cc-option,-ffreestanding) + KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) ++ifdef CONSTIFY_PLUGIN ++KBUILD_CFLAGS += $(CONSTIFY_PLUGIN) -fplugin-arg-constify_plugin-no-constify ++endif + + KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ + GCOV_PROFILE := n +diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c +index 0cdfc0d..6e79437 100644 +--- a/arch/x86/boot/compressed/eboot.c ++++ b/arch/x86/boot/compressed/eboot.c +@@ -122,7 +122,6 @@ again: + *addr = max_addr; + } + +-free_pool: + efi_call_phys1(sys_table->boottime->free_pool, map); + + fail: +@@ -186,7 +185,6 @@ static efi_status_t low_alloc(unsigned long size, unsigned long align, + if (i == map_size / desc_size) + status = EFI_NOT_FOUND; + +-free_pool: + efi_call_phys1(sys_table->boottime->free_pool, map); + fail: + return status; +diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S +index c85e3ac..6f5aa80 100644 +--- a/arch/x86/boot/compressed/head_32.S ++++ b/arch/x86/boot/compressed/head_32.S +@@ -106,7 +106,7 @@ preferred_addr: + notl %eax + andl %eax, %ebx + #else +- movl $LOAD_PHYSICAL_ADDR, %ebx ++ movl $____LOAD_PHYSICAL_ADDR, %ebx + #endif + + /* Target address to relocate to for decompression */ +@@ -192,7 +192,7 @@ relocated: + * and where it was actually loaded. + */ + movl %ebp, %ebx +- subl $LOAD_PHYSICAL_ADDR, %ebx ++ subl $____LOAD_PHYSICAL_ADDR, %ebx + jz 2f /* Nothing to be done if loaded at compiled addr. */ + /* + * Process relocations. +@@ -200,8 +200,7 @@ relocated: + + 1: subl $4, %edi + movl (%edi), %ecx +- testl %ecx, %ecx +- jz 2f ++ jecxz 2f + addl %ebx, -__PAGE_OFFSET(%ebx, %ecx) + jmp 1b + 2: +diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S +index 87e03a1..0d94c76 100644 +--- a/arch/x86/boot/compressed/head_64.S ++++ b/arch/x86/boot/compressed/head_64.S +@@ -91,7 +91,7 @@ ENTRY(startup_32) + notl %eax + andl %eax, %ebx + #else +- movl $LOAD_PHYSICAL_ADDR, %ebx ++ movl $____LOAD_PHYSICAL_ADDR, %ebx + #endif + + /* Target address to relocate to for decompression */ +@@ -263,7 +263,7 @@ preferred_addr: + notq %rax + andq %rax, %rbp + #else +- movq $LOAD_PHYSICAL_ADDR, %rbp ++ movq $____LOAD_PHYSICAL_ADDR, %rbp + #endif + + /* Target address to relocate to for decompression */ +diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c +index 7116dcb..d9ae1d7 100644 +--- a/arch/x86/boot/compressed/misc.c ++++ b/arch/x86/boot/compressed/misc.c +@@ -310,7 +310,7 @@ static void parse_elf(void *output) + case PT_LOAD: + #ifdef CONFIG_RELOCATABLE + dest = output; +- dest += (phdr->p_paddr - LOAD_PHYSICAL_ADDR); ++ dest += (phdr->p_paddr - ____LOAD_PHYSICAL_ADDR); + #else + dest = (void *)(phdr->p_paddr); + #endif +@@ -365,7 +365,7 @@ asmlinkage void decompress_kernel(void *rmode, memptr heap, + error("Destination address too large"); + #endif + #ifndef CONFIG_RELOCATABLE +- if ((unsigned long)output != LOAD_PHYSICAL_ADDR) ++ if ((unsigned long)output != ____LOAD_PHYSICAL_ADDR) + error("Wrong destination address"); + #endif + +diff --git a/arch/x86/boot/cpucheck.c b/arch/x86/boot/cpucheck.c +index 4d3ff03..e4972ff 100644 +--- a/arch/x86/boot/cpucheck.c ++++ b/arch/x86/boot/cpucheck.c +@@ -74,7 +74,7 @@ static int has_fpu(void) + u16 fcw = -1, fsw = -1; + u32 cr0; + +- asm("movl %%cr0,%0" : "=r" (cr0)); ++ asm volatile("movl %%cr0,%0" : "=r" (cr0)); + if (cr0 & (X86_CR0_EM|X86_CR0_TS)) { + cr0 &= ~(X86_CR0_EM|X86_CR0_TS); + asm volatile("movl %0,%%cr0" : : "r" (cr0)); +@@ -90,7 +90,7 @@ static int has_eflag(u32 mask) + { + u32 f0, f1; + +- asm("pushfl ; " ++ asm volatile("pushfl ; " + "pushfl ; " + "popl %0 ; " + "movl %0,%1 ; " +@@ -115,7 +115,7 @@ static void get_flags(void) + set_bit(X86_FEATURE_FPU, cpu.flags); + + if (has_eflag(X86_EFLAGS_ID)) { +- asm("cpuid" ++ asm volatile("cpuid" + : "=a" (max_intel_level), + "=b" (cpu_vendor[0]), + "=d" (cpu_vendor[1]), +@@ -124,7 +124,7 @@ static void get_flags(void) + + if (max_intel_level >= 0x00000001 && + max_intel_level <= 0x0000ffff) { +- asm("cpuid" ++ asm volatile("cpuid" + : "=a" (tfms), + "=c" (cpu.flags[4]), + "=d" (cpu.flags[0]) +@@ -136,7 +136,7 @@ static void get_flags(void) + cpu.model += ((tfms >> 16) & 0xf) << 4; + } + +- asm("cpuid" ++ asm volatile("cpuid" + : "=a" (max_amd_level) + : "a" (0x80000000) + : "ebx", "ecx", "edx"); +@@ -144,7 +144,7 @@ static void get_flags(void) + if (max_amd_level >= 0x80000001 && + max_amd_level <= 0x8000ffff) { + u32 eax = 0x80000001; +- asm("cpuid" ++ asm volatile("cpuid" + : "+a" (eax), + "=c" (cpu.flags[6]), + "=d" (cpu.flags[1]) +@@ -203,9 +203,9 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr) + u32 ecx = MSR_K7_HWCR; + u32 eax, edx; + +- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); ++ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); + eax &= ~(1 << 15); +- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); ++ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); + + get_flags(); /* Make sure it really did something */ + err = check_flags(); +@@ -218,9 +218,9 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr) + u32 ecx = MSR_VIA_FCR; + u32 eax, edx; + +- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); ++ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); + eax |= (1<<1)|(1<<7); +- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); ++ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); + + set_bit(X86_FEATURE_CX8, cpu.flags); + err = check_flags(); +@@ -231,12 +231,12 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr) + u32 eax, edx; + u32 level = 1; + +- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); +- asm("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx)); +- asm("cpuid" ++ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); ++ asm volatile("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx)); ++ asm volatile("cpuid" + : "+a" (level), "=d" (cpu.flags[0]) + : : "ecx", "ebx"); +- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); ++ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); + + err = check_flags(); + } +diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S +index f1bbeeb..aff09cb 100644 +--- a/arch/x86/boot/header.S ++++ b/arch/x86/boot/header.S +@@ -372,7 +372,7 @@ setup_data: .quad 0 # 64-bit physical pointer to + # single linked list of + # struct setup_data + +-pref_address: .quad LOAD_PHYSICAL_ADDR # preferred load addr ++pref_address: .quad ____LOAD_PHYSICAL_ADDR # preferred load addr + + #define ZO_INIT_SIZE (ZO__end - ZO_startup_32 + ZO_z_extract_offset) + #define VO_INIT_SIZE (VO__end - VO__text) +diff --git a/arch/x86/boot/memory.c b/arch/x86/boot/memory.c +index db75d07..8e6d0af 100644 +--- a/arch/x86/boot/memory.c ++++ b/arch/x86/boot/memory.c +@@ -19,7 +19,7 @@ + + static int detect_memory_e820(void) + { +- int count = 0; ++ unsigned int count = 0; + struct biosregs ireg, oreg; + struct e820entry *desc = boot_params.e820_map; + static struct e820entry buf; /* static so it is zeroed */ +diff --git a/arch/x86/boot/video-vesa.c b/arch/x86/boot/video-vesa.c +index 11e8c6e..fdbb1ed 100644 +--- a/arch/x86/boot/video-vesa.c ++++ b/arch/x86/boot/video-vesa.c +@@ -200,6 +200,7 @@ static void vesa_store_pm_info(void) + + boot_params.screen_info.vesapm_seg = oreg.es; + boot_params.screen_info.vesapm_off = oreg.di; ++ boot_params.screen_info.vesapm_size = oreg.cx; + } + + /* +diff --git a/arch/x86/boot/video.c b/arch/x86/boot/video.c +index 43eda28..5ab5fdb 100644 +--- a/arch/x86/boot/video.c ++++ b/arch/x86/boot/video.c +@@ -96,7 +96,7 @@ static void store_mode_params(void) + static unsigned int get_entry(void) + { + char entry_buf[4]; +- int i, len = 0; ++ unsigned int i, len = 0; + int key; + unsigned int v; + +diff --git a/arch/x86/crypto/aes-x86_64-asm_64.S b/arch/x86/crypto/aes-x86_64-asm_64.S +index 5b577d5..3c1fed4 100644 +--- a/arch/x86/crypto/aes-x86_64-asm_64.S ++++ b/arch/x86/crypto/aes-x86_64-asm_64.S +@@ -8,6 +8,8 @@ + * including this sentence is retained in full. + */ + ++#include <asm/alternative-asm.h> ++ + .extern crypto_ft_tab + .extern crypto_it_tab + .extern crypto_fl_tab +@@ -71,6 +73,8 @@ FUNC: movq r1,r2; \ + je B192; \ + leaq 32(r9),r9; + ++#define ret pax_force_retaddr 0, 1; ret ++ + #define epilogue(r1,r2,r3,r4,r5,r6,r7,r8,r9) \ + movq r1,r2; \ + movq r3,r4; \ +diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S +index 3470624..201259d 100644 +--- a/arch/x86/crypto/aesni-intel_asm.S ++++ b/arch/x86/crypto/aesni-intel_asm.S +@@ -31,6 +31,7 @@ + + #include <linux/linkage.h> + #include <asm/inst.h> ++#include <asm/alternative-asm.h> + + #ifdef __x86_64__ + .data +@@ -1436,7 +1437,9 @@ _return_T_done_decrypt: + pop %r14 + pop %r13 + pop %r12 ++ pax_force_retaddr 0, 1 + ret ++ENDPROC(aesni_gcm_dec) + + + /***************************************************************************** +@@ -1699,7 +1702,9 @@ _return_T_done_encrypt: + pop %r14 + pop %r13 + pop %r12 ++ pax_force_retaddr 0, 1 + ret ++ENDPROC(aesni_gcm_enc) + + #endif + +@@ -1714,6 +1719,7 @@ _key_expansion_256a: + pxor %xmm1, %xmm0 + movaps %xmm0, (TKEYP) + add $0x10, TKEYP ++ pax_force_retaddr_bts + ret + + .align 4 +@@ -1738,6 +1744,7 @@ _key_expansion_192a: + shufps $0b01001110, %xmm2, %xmm1 + movaps %xmm1, 0x10(TKEYP) + add $0x20, TKEYP ++ pax_force_retaddr_bts + ret + + .align 4 +@@ -1757,6 +1764,7 @@ _key_expansion_192b: + + movaps %xmm0, (TKEYP) + add $0x10, TKEYP ++ pax_force_retaddr_bts + ret + + .align 4 +@@ -1769,6 +1777,7 @@ _key_expansion_256b: + pxor %xmm1, %xmm2 + movaps %xmm2, (TKEYP) + add $0x10, TKEYP ++ pax_force_retaddr_bts + ret + + /* +@@ -1881,7 +1890,9 @@ ENTRY(aesni_set_key) + #ifndef __x86_64__ + popl KEYP + #endif ++ pax_force_retaddr 0, 1 + ret ++ENDPROC(aesni_set_key) + + /* + * void aesni_enc(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src) +@@ -1902,7 +1913,9 @@ ENTRY(aesni_enc) + popl KLEN + popl KEYP + #endif ++ pax_force_retaddr 0, 1 + ret ++ENDPROC(aesni_enc) + + /* + * _aesni_enc1: internal ABI +@@ -1959,6 +1972,7 @@ _aesni_enc1: + AESENC KEY STATE + movaps 0x70(TKEYP), KEY + AESENCLAST KEY STATE ++ pax_force_retaddr_bts + ret + + /* +@@ -2067,6 +2081,7 @@ _aesni_enc4: + AESENCLAST KEY STATE2 + AESENCLAST KEY STATE3 + AESENCLAST KEY STATE4 ++ pax_force_retaddr_bts + ret + + /* +@@ -2089,7 +2104,9 @@ ENTRY(aesni_dec) + popl KLEN + popl KEYP + #endif ++ pax_force_retaddr 0, 1 + ret ++ENDPROC(aesni_dec) + + /* + * _aesni_dec1: internal ABI +@@ -2146,6 +2163,7 @@ _aesni_dec1: + AESDEC KEY STATE + movaps 0x70(TKEYP), KEY + AESDECLAST KEY STATE ++ pax_force_retaddr_bts + ret + + /* +@@ -2254,6 +2272,7 @@ _aesni_dec4: + AESDECLAST KEY STATE2 + AESDECLAST KEY STATE3 + AESDECLAST KEY STATE4 ++ pax_force_retaddr_bts + ret + + /* +@@ -2311,7 +2330,9 @@ ENTRY(aesni_ecb_enc) + popl KEYP + popl LEN + #endif ++ pax_force_retaddr 0, 1 + ret ++ENDPROC(aesni_ecb_enc) + + /* + * void aesni_ecb_dec(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src, +@@ -2369,7 +2390,9 @@ ENTRY(aesni_ecb_dec) + popl KEYP + popl LEN + #endif ++ pax_force_retaddr 0, 1 + ret ++ENDPROC(aesni_ecb_dec) + + /* + * void aesni_cbc_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src, +@@ -2410,7 +2433,9 @@ ENTRY(aesni_cbc_enc) + popl LEN + popl IVP + #endif ++ pax_force_retaddr 0, 1 + ret ++ENDPROC(aesni_cbc_enc) + + /* + * void aesni_cbc_dec(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src, +@@ -2500,7 +2525,9 @@ ENTRY(aesni_cbc_dec) + popl LEN + popl IVP + #endif ++ pax_force_retaddr 0, 1 + ret ++ENDPROC(aesni_cbc_dec) + + #ifdef __x86_64__ + .align 16 +@@ -2526,6 +2553,7 @@ _aesni_inc_init: + mov $1, TCTR_LOW + MOVQ_R64_XMM TCTR_LOW INC + MOVQ_R64_XMM CTR TCTR_LOW ++ pax_force_retaddr_bts + ret + + /* +@@ -2554,6 +2582,7 @@ _aesni_inc: + .Linc_low: + movaps CTR, IV + PSHUFB_XMM BSWAP_MASK IV ++ pax_force_retaddr_bts + ret + + /* +@@ -2614,5 +2643,7 @@ ENTRY(aesni_ctr_enc) + .Lctr_enc_ret: + movups IV, (IVP) + .Lctr_enc_just_ret: ++ pax_force_retaddr 0, 1 + ret ++ENDPROC(aesni_ctr_enc) + #endif +diff --git a/arch/x86/crypto/blowfish-x86_64-asm_64.S b/arch/x86/crypto/blowfish-x86_64-asm_64.S +index 391d245..67f35c2 100644 +--- a/arch/x86/crypto/blowfish-x86_64-asm_64.S ++++ b/arch/x86/crypto/blowfish-x86_64-asm_64.S +@@ -20,6 +20,8 @@ + * + */ + ++#include <asm/alternative-asm.h> ++ + .file "blowfish-x86_64-asm.S" + .text + +@@ -151,9 +153,11 @@ __blowfish_enc_blk: + jnz __enc_xor; + + write_block(); ++ pax_force_retaddr 0, 1 + ret; + __enc_xor: + xor_block(); ++ pax_force_retaddr 0, 1 + ret; + + .align 8 +@@ -188,6 +192,7 @@ blowfish_dec_blk: + + movq %r11, %rbp; + ++ pax_force_retaddr 0, 1 + ret; + + /********************************************************************** +@@ -342,6 +347,7 @@ __blowfish_enc_blk_4way: + + popq %rbx; + popq %rbp; ++ pax_force_retaddr 0, 1 + ret; + + __enc_xor4: +@@ -349,6 +355,7 @@ __enc_xor4: + + popq %rbx; + popq %rbp; ++ pax_force_retaddr 0, 1 + ret; + + .align 8 +@@ -386,5 +393,6 @@ blowfish_dec_blk_4way: + popq %rbx; + popq %rbp; + ++ pax_force_retaddr 0, 1 + ret; + +diff --git a/arch/x86/crypto/camellia-x86_64-asm_64.S b/arch/x86/crypto/camellia-x86_64-asm_64.S +index 0b33743..7a56206 100644 +--- a/arch/x86/crypto/camellia-x86_64-asm_64.S ++++ b/arch/x86/crypto/camellia-x86_64-asm_64.S +@@ -20,6 +20,8 @@ + * + */ + ++#include <asm/alternative-asm.h> ++ + .file "camellia-x86_64-asm_64.S" + .text + +@@ -229,12 +231,14 @@ __enc_done: + enc_outunpack(mov, RT1); + + movq RRBP, %rbp; ++ pax_force_retaddr 0, 1 + ret; + + __enc_xor: + enc_outunpack(xor, RT1); + + movq RRBP, %rbp; ++ pax_force_retaddr 0, 1 + ret; + + .global camellia_dec_blk; +@@ -275,6 +279,7 @@ __dec_rounds16: + dec_outunpack(); + + movq RRBP, %rbp; ++ pax_force_retaddr 0, 1 + ret; + + /********************************************************************** +@@ -468,6 +473,7 @@ __enc2_done: + + movq RRBP, %rbp; + popq %rbx; ++ pax_force_retaddr 0, 1 + ret; + + __enc2_xor: +@@ -475,6 +481,7 @@ __enc2_xor: + + movq RRBP, %rbp; + popq %rbx; ++ pax_force_retaddr 0, 1 + ret; + + .global camellia_dec_blk_2way; +@@ -517,4 +524,5 @@ __dec2_rounds16: + + movq RRBP, %rbp; + movq RXOR, %rbx; ++ pax_force_retaddr 0, 1 + ret; +diff --git a/arch/x86/crypto/salsa20-x86_64-asm_64.S b/arch/x86/crypto/salsa20-x86_64-asm_64.S +index 6214a9b..1f4fc9a 100644 +--- a/arch/x86/crypto/salsa20-x86_64-asm_64.S ++++ b/arch/x86/crypto/salsa20-x86_64-asm_64.S +@@ -1,3 +1,5 @@ ++#include <asm/alternative-asm.h> ++ + # enter ECRYPT_encrypt_bytes + .text + .p2align 5 +@@ -790,6 +792,7 @@ ECRYPT_encrypt_bytes: + add %r11,%rsp + mov %rdi,%rax + mov %rsi,%rdx ++ pax_force_retaddr 0, 1 + ret + # bytesatleast65: + ._bytesatleast65: +@@ -891,6 +894,7 @@ ECRYPT_keysetup: + add %r11,%rsp + mov %rdi,%rax + mov %rsi,%rdx ++ pax_force_retaddr + ret + # enter ECRYPT_ivsetup + .text +@@ -917,4 +921,5 @@ ECRYPT_ivsetup: + add %r11,%rsp + mov %rdi,%rax + mov %rsi,%rdx ++ pax_force_retaddr + ret +diff --git a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S +index 3ee1ff0..cbc568b 100644 +--- a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S ++++ b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S +@@ -24,6 +24,8 @@ + * + */ + ++#include <asm/alternative-asm.h> ++ + .file "serpent-sse2-x86_64-asm_64.S" + .text + +@@ -692,12 +694,14 @@ __serpent_enc_blk_8way: + write_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2); + write_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2); + ++ pax_force_retaddr + ret; + + __enc_xor8: + xor_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2); + xor_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2); + ++ pax_force_retaddr + ret; + + .align 8 +@@ -755,4 +759,5 @@ serpent_dec_blk_8way: + write_blocks(%rsi, RC1, RD1, RB1, RE1, RK0, RK1, RK2); + write_blocks(%rax, RC2, RD2, RB2, RE2, RK0, RK1, RK2); + ++ pax_force_retaddr + ret; +diff --git a/arch/x86/crypto/sha1_ssse3_asm.S b/arch/x86/crypto/sha1_ssse3_asm.S +index b2c2f57..8470cab 100644 +--- a/arch/x86/crypto/sha1_ssse3_asm.S ++++ b/arch/x86/crypto/sha1_ssse3_asm.S +@@ -28,6 +28,8 @@ + * (at your option) any later version. + */ + ++#include <asm/alternative-asm.h> ++ + #define CTX %rdi // arg1 + #define BUF %rsi // arg2 + #define CNT %rdx // arg3 +@@ -104,6 +106,7 @@ + pop %r12 + pop %rbp + pop %rbx ++ pax_force_retaddr 0, 1 + ret + + .size \name, .-\name +diff --git a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S +index 5b012a2..36d5364 100644 +--- a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S ++++ b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S +@@ -20,6 +20,8 @@ + * + */ + ++#include <asm/alternative-asm.h> ++ + .file "twofish-x86_64-asm-3way.S" + .text + +@@ -260,6 +262,7 @@ __twofish_enc_blk_3way: + popq %r13; + popq %r14; + popq %r15; ++ pax_force_retaddr 0, 1 + ret; + + __enc_xor3: +@@ -271,6 +274,7 @@ __enc_xor3: + popq %r13; + popq %r14; + popq %r15; ++ pax_force_retaddr 0, 1 + ret; + + .global twofish_dec_blk_3way +@@ -312,5 +316,6 @@ twofish_dec_blk_3way: + popq %r13; + popq %r14; + popq %r15; ++ pax_force_retaddr 0, 1 + ret; + +diff --git a/arch/x86/crypto/twofish-x86_64-asm_64.S b/arch/x86/crypto/twofish-x86_64-asm_64.S +index 7bcf3fc..f53832f 100644 +--- a/arch/x86/crypto/twofish-x86_64-asm_64.S ++++ b/arch/x86/crypto/twofish-x86_64-asm_64.S +@@ -21,6 +21,7 @@ + .text + + #include <asm/asm-offsets.h> ++#include <asm/alternative-asm.h> + + #define a_offset 0 + #define b_offset 4 +@@ -268,6 +269,7 @@ twofish_enc_blk: + + popq R1 + movq $1,%rax ++ pax_force_retaddr 0, 1 + ret + + twofish_dec_blk: +@@ -319,4 +321,5 @@ twofish_dec_blk: + + popq R1 + movq $1,%rax ++ pax_force_retaddr 0, 1 + ret +diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c +index 07b3a68..bd2a388 100644 +--- a/arch/x86/ia32/ia32_aout.c ++++ b/arch/x86/ia32/ia32_aout.c +@@ -159,6 +159,8 @@ static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file, + unsigned long dump_start, dump_size; + struct user32 dump; + ++ memset(&dump, 0, sizeof(dump)); ++ + fs = get_fs(); + set_fs(KERNEL_DS); + has_dumped = 1; +diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c +index 4f5bfac..e1ef0d3 100644 +--- a/arch/x86/ia32/ia32_signal.c ++++ b/arch/x86/ia32/ia32_signal.c +@@ -168,7 +168,7 @@ asmlinkage long sys32_sigaltstack(const stack_ia32_t __user *uss_ptr, + } + seg = get_fs(); + set_fs(KERNEL_DS); +- ret = do_sigaltstack(uss_ptr ? &uss : NULL, &uoss, regs->sp); ++ ret = do_sigaltstack(uss_ptr ? (const stack_t __force_user *)&uss : NULL, (stack_t __force_user *)&uoss, regs->sp); + set_fs(seg); + if (ret >= 0 && uoss_ptr) { + if (!access_ok(VERIFY_WRITE, uoss_ptr, sizeof(stack_ia32_t))) +@@ -369,7 +369,7 @@ static int ia32_setup_sigcontext(struct sigcontext_ia32 __user *sc, + */ + static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, + size_t frame_size, +- void **fpstate) ++ void __user **fpstate) + { + unsigned long sp; + +@@ -390,7 +390,7 @@ static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, + + if (used_math()) { + sp = sp - sig_xstate_ia32_size; +- *fpstate = (struct _fpstate_ia32 *) sp; ++ *fpstate = (struct _fpstate_ia32 __user *) sp; + if (save_i387_xstate_ia32(*fpstate) < 0) + return (void __user *) -1L; + } +@@ -398,7 +398,7 @@ static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, + sp -= frame_size; + /* Align the stack pointer according to the i386 ABI, + * i.e. so that on function entry ((sp + 4) & 15) == 0. */ +- sp = ((sp + 4) & -16ul) - 4; ++ sp = ((sp - 12) & -16ul) - 4; + return (void __user *) sp; + } + +@@ -456,7 +456,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka, + * These are actually not used anymore, but left because some + * gdb versions depend on them as a marker. + */ +- put_user_ex(*((u64 *)&code), (u64 *)frame->retcode); ++ put_user_ex(*((const u64 *)&code), (u64 __user *)frame->retcode); + } put_user_catch(err); + + if (err) +@@ -498,7 +498,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, + 0xb8, + __NR_ia32_rt_sigreturn, + 0x80cd, +- 0, ++ 0 + }; + + frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate); +@@ -528,16 +528,18 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, + + if (ka->sa.sa_flags & SA_RESTORER) + restorer = ka->sa.sa_restorer; ++ else if (current->mm->context.vdso) ++ /* Return stub is in 32bit vsyscall page */ ++ restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn); + else +- restorer = VDSO32_SYMBOL(current->mm->context.vdso, +- rt_sigreturn); ++ restorer = &frame->retcode; + put_user_ex(ptr_to_compat(restorer), &frame->pretcode); + + /* + * Not actually used anymore, but left because some gdb + * versions need it. + */ +- put_user_ex(*((u64 *)&code), (u64 *)frame->retcode); ++ put_user_ex(*((const u64 *)&code), (u64 __user *)frame->retcode); + } put_user_catch(err); + + if (err) +diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S +index e3e7340..05ed805 100644 +--- a/arch/x86/ia32/ia32entry.S ++++ b/arch/x86/ia32/ia32entry.S +@@ -13,8 +13,10 @@ + #include <asm/thread_info.h> + #include <asm/segment.h> + #include <asm/irqflags.h> ++#include <asm/pgtable.h> + #include <linux/linkage.h> + #include <linux/err.h> ++#include <asm/alternative-asm.h> + + /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */ + #include <linux/elf-em.h> +@@ -94,6 +96,32 @@ ENTRY(native_irq_enable_sysexit) + ENDPROC(native_irq_enable_sysexit) + #endif + ++ .macro pax_enter_kernel_user ++ pax_set_fptr_mask ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ call pax_enter_kernel_user ++#endif ++ .endm ++ ++ .macro pax_exit_kernel_user ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ call pax_exit_kernel_user ++#endif ++#ifdef CONFIG_PAX_RANDKSTACK ++ pushq %rax ++ pushq %r11 ++ call pax_randomize_kstack ++ popq %r11 ++ popq %rax ++#endif ++ .endm ++ ++.macro pax_erase_kstack ++#ifdef CONFIG_PAX_MEMORY_STACKLEAK ++ call pax_erase_kstack ++#endif ++.endm ++ + /* + * 32bit SYSENTER instruction entry. + * +@@ -120,12 +148,6 @@ ENTRY(ia32_sysenter_target) + CFI_REGISTER rsp,rbp + SWAPGS_UNSAFE_STACK + movq PER_CPU_VAR(kernel_stack), %rsp +- addq $(KERNEL_STACK_OFFSET),%rsp +- /* +- * No need to follow this irqs on/off section: the syscall +- * disabled irqs, here we enable it straight after entry: +- */ +- ENABLE_INTERRUPTS(CLBR_NONE) + movl %ebp,%ebp /* zero extension */ + pushq_cfi $__USER32_DS + /*CFI_REL_OFFSET ss,0*/ +@@ -133,24 +155,39 @@ ENTRY(ia32_sysenter_target) + CFI_REL_OFFSET rsp,0 + pushfq_cfi + /*CFI_REL_OFFSET rflags,0*/ +- movl TI_sysenter_return+THREAD_INFO(%rsp,3*8-KERNEL_STACK_OFFSET),%r10d +- CFI_REGISTER rip,r10 ++ orl $X86_EFLAGS_IF,(%rsp) ++ GET_THREAD_INFO(%r11) ++ movl TI_sysenter_return(%r11), %r11d ++ CFI_REGISTER rip,r11 + pushq_cfi $__USER32_CS + /*CFI_REL_OFFSET cs,0*/ + movl %eax, %eax +- pushq_cfi %r10 ++ pushq_cfi %r11 + CFI_REL_OFFSET rip,0 + pushq_cfi %rax + cld + SAVE_ARGS 0,1,0 ++ pax_enter_kernel_user ++ /* ++ * No need to follow this irqs on/off section: the syscall ++ * disabled irqs, here we enable it straight after entry: ++ */ ++ ENABLE_INTERRUPTS(CLBR_NONE) + /* no need to do an access_ok check here because rbp has been + 32bit zero extended */ ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ mov $PAX_USER_SHADOW_BASE,%r11 ++ add %r11,%rbp ++#endif ++ + 1: movl (%rbp),%ebp + .section __ex_table,"a" + .quad 1b,ia32_badarg + .previous +- orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET) +- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) ++ GET_THREAD_INFO(%r11) ++ orl $TS_COMPAT,TI_status(%r11) ++ testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11) + CFI_REMEMBER_STATE + jnz sysenter_tracesys + cmpq $(IA32_NR_syscalls-1),%rax +@@ -160,12 +197,15 @@ sysenter_do_call: + sysenter_dispatch: + call *ia32_sys_call_table(,%rax,8) + movq %rax,RAX-ARGOFFSET(%rsp) ++ GET_THREAD_INFO(%r11) + DISABLE_INTERRUPTS(CLBR_NONE) + TRACE_IRQS_OFF +- testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) ++ testl $_TIF_ALLWORK_MASK,TI_flags(%r11) + jnz sysexit_audit + sysexit_from_sys_call: +- andl $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET) ++ pax_exit_kernel_user ++ pax_erase_kstack ++ andl $~TS_COMPAT,TI_status(%r11) + /* clear IF, that popfq doesn't enable interrupts early */ + andl $~0x200,EFLAGS-R11(%rsp) + movl RIP-R11(%rsp),%edx /* User %eip */ +@@ -191,6 +231,9 @@ sysexit_from_sys_call: + movl %eax,%esi /* 2nd arg: syscall number */ + movl $AUDIT_ARCH_I386,%edi /* 1st arg: audit arch */ + call __audit_syscall_entry ++ ++ pax_erase_kstack ++ + movl RAX-ARGOFFSET(%rsp),%eax /* reload syscall number */ + cmpq $(IA32_NR_syscalls-1),%rax + ja ia32_badsys +@@ -202,7 +245,7 @@ sysexit_from_sys_call: + .endm + + .macro auditsys_exit exit +- testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) ++ testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11) + jnz ia32_ret_from_sys_call + TRACE_IRQS_ON + sti +@@ -213,11 +256,12 @@ sysexit_from_sys_call: + 1: setbe %al /* 1 if error, 0 if not */ + movzbl %al,%edi /* zero-extend that into %edi */ + call __audit_syscall_exit ++ GET_THREAD_INFO(%r11) + movq RAX-ARGOFFSET(%rsp),%rax /* reload syscall return value */ + movl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),%edi + cli + TRACE_IRQS_OFF +- testl %edi,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) ++ testl %edi,TI_flags(%r11) + jz \exit + CLEAR_RREGS -ARGOFFSET + jmp int_with_check +@@ -235,7 +279,7 @@ sysexit_audit: + + sysenter_tracesys: + #ifdef CONFIG_AUDITSYSCALL +- testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) ++ testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11) + jz sysenter_auditsys + #endif + SAVE_REST +@@ -243,6 +287,9 @@ sysenter_tracesys: + movq $-ENOSYS,RAX(%rsp)/* ptrace can change this for a bad syscall */ + movq %rsp,%rdi /* &pt_regs -> arg1 */ + call syscall_trace_enter ++ ++ pax_erase_kstack ++ + LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */ + RESTORE_REST + cmpq $(IA32_NR_syscalls-1),%rax +@@ -274,19 +321,20 @@ ENDPROC(ia32_sysenter_target) + ENTRY(ia32_cstar_target) + CFI_STARTPROC32 simple + CFI_SIGNAL_FRAME +- CFI_DEF_CFA rsp,KERNEL_STACK_OFFSET ++ CFI_DEF_CFA rsp,0 + CFI_REGISTER rip,rcx + /*CFI_REGISTER rflags,r11*/ + SWAPGS_UNSAFE_STACK + movl %esp,%r8d + CFI_REGISTER rsp,r8 + movq PER_CPU_VAR(kernel_stack),%rsp ++ SAVE_ARGS 8*6,0,0 ++ pax_enter_kernel_user + /* + * No need to follow this irqs on/off section: the syscall + * disabled irqs and here we enable it straight after entry: + */ + ENABLE_INTERRUPTS(CLBR_NONE) +- SAVE_ARGS 8,0,0 + movl %eax,%eax /* zero extension */ + movq %rax,ORIG_RAX-ARGOFFSET(%rsp) + movq %rcx,RIP-ARGOFFSET(%rsp) +@@ -302,12 +350,19 @@ ENTRY(ia32_cstar_target) + /* no need to do an access_ok check here because r8 has been + 32bit zero extended */ + /* hardware stack frame is complete now */ ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ mov $PAX_USER_SHADOW_BASE,%r11 ++ add %r11,%r8 ++#endif ++ + 1: movl (%r8),%r9d + .section __ex_table,"a" + .quad 1b,ia32_badarg + .previous +- orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET) +- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) ++ GET_THREAD_INFO(%r11) ++ orl $TS_COMPAT,TI_status(%r11) ++ testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11) + CFI_REMEMBER_STATE + jnz cstar_tracesys + cmpq $IA32_NR_syscalls-1,%rax +@@ -317,12 +372,15 @@ cstar_do_call: + cstar_dispatch: + call *ia32_sys_call_table(,%rax,8) + movq %rax,RAX-ARGOFFSET(%rsp) ++ GET_THREAD_INFO(%r11) + DISABLE_INTERRUPTS(CLBR_NONE) + TRACE_IRQS_OFF +- testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) ++ testl $_TIF_ALLWORK_MASK,TI_flags(%r11) + jnz sysretl_audit + sysretl_from_sys_call: +- andl $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET) ++ pax_exit_kernel_user ++ pax_erase_kstack ++ andl $~TS_COMPAT,TI_status(%r11) + RESTORE_ARGS 0,-ARG_SKIP,0,0,0 + movl RIP-ARGOFFSET(%rsp),%ecx + CFI_REGISTER rip,rcx +@@ -350,7 +408,7 @@ sysretl_audit: + + cstar_tracesys: + #ifdef CONFIG_AUDITSYSCALL +- testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) ++ testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11) + jz cstar_auditsys + #endif + xchgl %r9d,%ebp +@@ -359,6 +417,9 @@ cstar_tracesys: + movq $-ENOSYS,RAX(%rsp) /* ptrace can change this for a bad syscall */ + movq %rsp,%rdi /* &pt_regs -> arg1 */ + call syscall_trace_enter ++ ++ pax_erase_kstack ++ + LOAD_ARGS32 ARGOFFSET, 1 /* reload args from stack in case ptrace changed it */ + RESTORE_REST + xchgl %ebp,%r9d +@@ -404,19 +465,21 @@ ENTRY(ia32_syscall) + CFI_REL_OFFSET rip,RIP-RIP + PARAVIRT_ADJUST_EXCEPTION_FRAME + SWAPGS +- /* +- * No need to follow this irqs on/off section: the syscall +- * disabled irqs and here we enable it straight after entry: +- */ +- ENABLE_INTERRUPTS(CLBR_NONE) + movl %eax,%eax + pushq_cfi %rax + cld + /* note the registers are not zero extended to the sf. + this could be a problem. */ + SAVE_ARGS 0,1,0 +- orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET) +- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) ++ pax_enter_kernel_user ++ /* ++ * No need to follow this irqs on/off section: the syscall ++ * disabled irqs and here we enable it straight after entry: ++ */ ++ ENABLE_INTERRUPTS(CLBR_NONE) ++ GET_THREAD_INFO(%r11) ++ orl $TS_COMPAT,TI_status(%r11) ++ testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11) + jnz ia32_tracesys + cmpq $(IA32_NR_syscalls-1),%rax + ja ia32_badsys +@@ -435,6 +498,9 @@ ia32_tracesys: + movq $-ENOSYS,RAX(%rsp) /* ptrace can change this for a bad syscall */ + movq %rsp,%rdi /* &pt_regs -> arg1 */ + call syscall_trace_enter ++ ++ pax_erase_kstack ++ + LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */ + RESTORE_REST + cmpq $(IA32_NR_syscalls-1),%rax +diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c +index aec2202..f76174e 100644 +--- a/arch/x86/ia32/sys_ia32.c ++++ b/arch/x86/ia32/sys_ia32.c +@@ -69,8 +69,8 @@ asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long offset_low, + */ + static int cp_stat64(struct stat64 __user *ubuf, struct kstat *stat) + { +- typeof(ubuf->st_uid) uid = 0; +- typeof(ubuf->st_gid) gid = 0; ++ typeof(((struct stat64 *)0)->st_uid) uid = 0; ++ typeof(((struct stat64 *)0)->st_gid) gid = 0; + SET_UID(uid, stat->uid); + SET_GID(gid, stat->gid); + if (!access_ok(VERIFY_WRITE, ubuf, sizeof(struct stat64)) || +@@ -292,7 +292,7 @@ asmlinkage long sys32_alarm(unsigned int seconds) + return alarm_setitimer(seconds); + } + +-asmlinkage long sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr, ++asmlinkage long sys32_waitpid(compat_pid_t pid, unsigned int __user *stat_addr, + int options) + { + return compat_sys_wait4(pid, stat_addr, options, NULL); +@@ -313,7 +313,7 @@ asmlinkage long sys32_sched_rr_get_interval(compat_pid_t pid, + mm_segment_t old_fs = get_fs(); + + set_fs(KERNEL_DS); +- ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t); ++ ret = sys_sched_rr_get_interval(pid, (struct timespec __force_user *)&t); + set_fs(old_fs); + if (put_compat_timespec(&t, interval)) + return -EFAULT; +@@ -329,7 +329,7 @@ asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set, + mm_segment_t old_fs = get_fs(); + + set_fs(KERNEL_DS); +- ret = sys_rt_sigpending((sigset_t __user *)&s, sigsetsize); ++ ret = sys_rt_sigpending((sigset_t __force_user *)&s, sigsetsize); + set_fs(old_fs); + if (!ret) { + switch (_NSIG_WORDS) { +@@ -354,7 +354,7 @@ asmlinkage long sys32_rt_sigqueueinfo(int pid, int sig, + if (copy_siginfo_from_user32(&info, uinfo)) + return -EFAULT; + set_fs(KERNEL_DS); +- ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *)&info); ++ ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __force_user *)&info); + set_fs(old_fs); + return ret; + } +@@ -399,7 +399,7 @@ asmlinkage long sys32_sendfile(int out_fd, int in_fd, + return -EFAULT; + + set_fs(KERNEL_DS); +- ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL, ++ ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __force_user *)&of : NULL, + count); + set_fs(old_fs); + +diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h +index 952bd01..7692c6f 100644 +--- a/arch/x86/include/asm/alternative-asm.h ++++ b/arch/x86/include/asm/alternative-asm.h +@@ -15,6 +15,45 @@ + .endm + #endif + ++#ifdef KERNEXEC_PLUGIN ++ .macro pax_force_retaddr_bts rip=0 ++ btsq $63,\rip(%rsp) ++ .endm ++#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS ++ .macro pax_force_retaddr rip=0, reload=0 ++ btsq $63,\rip(%rsp) ++ .endm ++ .macro pax_force_fptr ptr ++ btsq $63,\ptr ++ .endm ++ .macro pax_set_fptr_mask ++ .endm ++#endif ++#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR ++ .macro pax_force_retaddr rip=0, reload=0 ++ .if \reload ++ pax_set_fptr_mask ++ .endif ++ orq %r10,\rip(%rsp) ++ .endm ++ .macro pax_force_fptr ptr ++ orq %r10,\ptr ++ .endm ++ .macro pax_set_fptr_mask ++ movabs $0x8000000000000000,%r10 ++ .endm ++#endif ++#else ++ .macro pax_force_retaddr rip=0, reload=0 ++ .endm ++ .macro pax_force_fptr ptr ++ .endm ++ .macro pax_force_retaddr_bts rip=0 ++ .endm ++ .macro pax_set_fptr_mask ++ .endm ++#endif ++ + .macro altinstruction_entry orig alt feature orig_len alt_len + .long \orig - . + .long \alt - . +diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h +index 49331be..9706065 100644 +--- a/arch/x86/include/asm/alternative.h ++++ b/arch/x86/include/asm/alternative.h +@@ -89,7 +89,7 @@ static inline int alternatives_text_reserved(void *start, void *end) + ".section .discard,\"aw\",@progbits\n" \ + " .byte 0xff + (664f-663f) - (662b-661b)\n" /* rlen <= slen */ \ + ".previous\n" \ +- ".section .altinstr_replacement, \"ax\"\n" \ ++ ".section .altinstr_replacement, \"a\"\n" \ + "663:\n\t" newinstr "\n664:\n" /* replacement */ \ + ".previous" + +diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h +index d854101..f6ea947 100644 +--- a/arch/x86/include/asm/apic.h ++++ b/arch/x86/include/asm/apic.h +@@ -44,7 +44,7 @@ static inline void generic_apic_probe(void) + + #ifdef CONFIG_X86_LOCAL_APIC + +-extern unsigned int apic_verbosity; ++extern int apic_verbosity; + extern int local_apic_timer_c2_ok; + + extern int disable_apic; +diff --git a/arch/x86/include/asm/apm.h b/arch/x86/include/asm/apm.h +index 20370c6..a2eb9b0 100644 +--- a/arch/x86/include/asm/apm.h ++++ b/arch/x86/include/asm/apm.h +@@ -34,7 +34,7 @@ static inline void apm_bios_call_asm(u32 func, u32 ebx_in, u32 ecx_in, + __asm__ __volatile__(APM_DO_ZERO_SEGS + "pushl %%edi\n\t" + "pushl %%ebp\n\t" +- "lcall *%%cs:apm_bios_entry\n\t" ++ "lcall *%%ss:apm_bios_entry\n\t" + "setc %%al\n\t" + "popl %%ebp\n\t" + "popl %%edi\n\t" +@@ -58,7 +58,7 @@ static inline u8 apm_bios_call_simple_asm(u32 func, u32 ebx_in, + __asm__ __volatile__(APM_DO_ZERO_SEGS + "pushl %%edi\n\t" + "pushl %%ebp\n\t" +- "lcall *%%cs:apm_bios_entry\n\t" ++ "lcall *%%ss:apm_bios_entry\n\t" + "setc %%bl\n\t" + "popl %%ebp\n\t" + "popl %%edi\n\t" +diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h +index 58cb6d4..a4b806c 100644 +--- a/arch/x86/include/asm/atomic.h ++++ b/arch/x86/include/asm/atomic.h +@@ -22,7 +22,18 @@ + */ + static inline int atomic_read(const atomic_t *v) + { +- return (*(volatile int *)&(v)->counter); ++ return (*(volatile const int *)&(v)->counter); ++} ++ ++/** ++ * atomic_read_unchecked - read atomic variable ++ * @v: pointer of type atomic_unchecked_t ++ * ++ * Atomically reads the value of @v. ++ */ ++static inline int atomic_read_unchecked(const atomic_unchecked_t *v) ++{ ++ return (*(volatile const int *)&(v)->counter); + } + + /** +@@ -38,6 +49,18 @@ static inline void atomic_set(atomic_t *v, int i) + } + + /** ++ * atomic_set_unchecked - set atomic variable ++ * @v: pointer of type atomic_unchecked_t ++ * @i: required value ++ * ++ * Atomically sets the value of @v to @i. ++ */ ++static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i) ++{ ++ v->counter = i; ++} ++ ++/** + * atomic_add - add integer to atomic variable + * @i: integer value to add + * @v: pointer of type atomic_t +@@ -46,7 +69,29 @@ static inline void atomic_set(atomic_t *v, int i) + */ + static inline void atomic_add(int i, atomic_t *v) + { +- asm volatile(LOCK_PREFIX "addl %1,%0" ++ asm volatile(LOCK_PREFIX "addl %1,%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX "subl %1,%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ : "+m" (v->counter) ++ : "ir" (i)); ++} ++ ++/** ++ * atomic_add_unchecked - add integer to atomic variable ++ * @i: integer value to add ++ * @v: pointer of type atomic_unchecked_t ++ * ++ * Atomically adds @i to @v. ++ */ ++static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v) ++{ ++ asm volatile(LOCK_PREFIX "addl %1,%0\n" + : "+m" (v->counter) + : "ir" (i)); + } +@@ -60,7 +105,29 @@ static inline void atomic_add(int i, atomic_t *v) + */ + static inline void atomic_sub(int i, atomic_t *v) + { +- asm volatile(LOCK_PREFIX "subl %1,%0" ++ asm volatile(LOCK_PREFIX "subl %1,%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX "addl %1,%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ : "+m" (v->counter) ++ : "ir" (i)); ++} ++ ++/** ++ * atomic_sub_unchecked - subtract integer from atomic variable ++ * @i: integer value to subtract ++ * @v: pointer of type atomic_unchecked_t ++ * ++ * Atomically subtracts @i from @v. ++ */ ++static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v) ++{ ++ asm volatile(LOCK_PREFIX "subl %1,%0\n" + : "+m" (v->counter) + : "ir" (i)); + } +@@ -78,7 +145,16 @@ static inline int atomic_sub_and_test(int i, atomic_t *v) + { + unsigned char c; + +- asm volatile(LOCK_PREFIX "subl %2,%0; sete %1" ++ asm volatile(LOCK_PREFIX "subl %2,%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX "addl %2,%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ "sete %1\n" + : "+m" (v->counter), "=qm" (c) + : "ir" (i) : "memory"); + return c; +@@ -92,7 +168,27 @@ static inline int atomic_sub_and_test(int i, atomic_t *v) + */ + static inline void atomic_inc(atomic_t *v) + { +- asm volatile(LOCK_PREFIX "incl %0" ++ asm volatile(LOCK_PREFIX "incl %0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX "decl %0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ : "+m" (v->counter)); ++} ++ ++/** ++ * atomic_inc_unchecked - increment atomic variable ++ * @v: pointer of type atomic_unchecked_t ++ * ++ * Atomically increments @v by 1. ++ */ ++static inline void atomic_inc_unchecked(atomic_unchecked_t *v) ++{ ++ asm volatile(LOCK_PREFIX "incl %0\n" + : "+m" (v->counter)); + } + +@@ -104,7 +200,27 @@ static inline void atomic_inc(atomic_t *v) + */ + static inline void atomic_dec(atomic_t *v) + { +- asm volatile(LOCK_PREFIX "decl %0" ++ asm volatile(LOCK_PREFIX "decl %0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX "incl %0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ : "+m" (v->counter)); ++} ++ ++/** ++ * atomic_dec_unchecked - decrement atomic variable ++ * @v: pointer of type atomic_unchecked_t ++ * ++ * Atomically decrements @v by 1. ++ */ ++static inline void atomic_dec_unchecked(atomic_unchecked_t *v) ++{ ++ asm volatile(LOCK_PREFIX "decl %0\n" + : "+m" (v->counter)); + } + +@@ -120,7 +236,16 @@ static inline int atomic_dec_and_test(atomic_t *v) + { + unsigned char c; + +- asm volatile(LOCK_PREFIX "decl %0; sete %1" ++ asm volatile(LOCK_PREFIX "decl %0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX "incl %0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ "sete %1\n" + : "+m" (v->counter), "=qm" (c) + : : "memory"); + return c != 0; +@@ -138,7 +263,35 @@ static inline int atomic_inc_and_test(atomic_t *v) + { + unsigned char c; + +- asm volatile(LOCK_PREFIX "incl %0; sete %1" ++ asm volatile(LOCK_PREFIX "incl %0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX "decl %0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ "sete %1\n" ++ : "+m" (v->counter), "=qm" (c) ++ : : "memory"); ++ return c != 0; ++} ++ ++/** ++ * atomic_inc_and_test_unchecked - increment and test ++ * @v: pointer of type atomic_unchecked_t ++ * ++ * Atomically increments @v by 1 ++ * and returns true if the result is zero, or false for all ++ * other cases. ++ */ ++static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v) ++{ ++ unsigned char c; ++ ++ asm volatile(LOCK_PREFIX "incl %0\n" ++ "sete %1\n" + : "+m" (v->counter), "=qm" (c) + : : "memory"); + return c != 0; +@@ -157,7 +310,16 @@ static inline int atomic_add_negative(int i, atomic_t *v) + { + unsigned char c; + +- asm volatile(LOCK_PREFIX "addl %2,%0; sets %1" ++ asm volatile(LOCK_PREFIX "addl %2,%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX "subl %2,%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ "sets %1\n" + : "+m" (v->counter), "=qm" (c) + : "ir" (i) : "memory"); + return c; +@@ -179,7 +341,7 @@ static inline int atomic_add_return(int i, atomic_t *v) + goto no_xadd; + #endif + /* Modern 486+ processor */ +- return i + xadd(&v->counter, i); ++ return i + xadd_check_overflow(&v->counter, i); + + #ifdef CONFIG_M386 + no_xadd: /* Legacy 386 processor */ +@@ -192,6 +354,34 @@ no_xadd: /* Legacy 386 processor */ + } + + /** ++ * atomic_add_return_unchecked - add integer and return ++ * @i: integer value to add ++ * @v: pointer of type atomic_unchecked_t ++ * ++ * Atomically adds @i to @v and returns @i + @v ++ */ ++static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v) ++{ ++#ifdef CONFIG_M386 ++ int __i; ++ unsigned long flags; ++ if (unlikely(boot_cpu_data.x86 <= 3)) ++ goto no_xadd; ++#endif ++ /* Modern 486+ processor */ ++ return i + xadd(&v->counter, i); ++ ++#ifdef CONFIG_M386 ++no_xadd: /* Legacy 386 processor */ ++ raw_local_irq_save(flags); ++ __i = atomic_read_unchecked(v); ++ atomic_set_unchecked(v, i + __i); ++ raw_local_irq_restore(flags); ++ return i + __i; ++#endif ++} ++ ++/** + * atomic_sub_return - subtract integer and return + * @v: pointer of type atomic_t + * @i: integer value to subtract +@@ -204,6 +394,10 @@ static inline int atomic_sub_return(int i, atomic_t *v) + } + + #define atomic_inc_return(v) (atomic_add_return(1, v)) ++static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v) ++{ ++ return atomic_add_return_unchecked(1, v); ++} + #define atomic_dec_return(v) (atomic_sub_return(1, v)) + + static inline int atomic_cmpxchg(atomic_t *v, int old, int new) +@@ -211,11 +405,21 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new) + return cmpxchg(&v->counter, old, new); + } + ++static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new) ++{ ++ return cmpxchg(&v->counter, old, new); ++} ++ + static inline int atomic_xchg(atomic_t *v, int new) + { + return xchg(&v->counter, new); + } + ++static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new) ++{ ++ return xchg(&v->counter, new); ++} ++ + /** + * __atomic_add_unless - add unless the number is already a given value + * @v: pointer of type atomic_t +@@ -227,12 +431,25 @@ static inline int atomic_xchg(atomic_t *v, int new) + */ + static inline int __atomic_add_unless(atomic_t *v, int a, int u) + { +- int c, old; ++ int c, old, new; + c = atomic_read(v); + for (;;) { +- if (unlikely(c == (u))) ++ if (unlikely(c == u)) + break; +- old = atomic_cmpxchg((v), c, c + (a)); ++ ++ asm volatile("addl %2,%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ "subl %2,%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ : "=r" (new) ++ : "0" (c), "ir" (a)); ++ ++ old = atomic_cmpxchg(v, c, new); + if (likely(old == c)) + break; + c = old; +@@ -240,6 +457,48 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u) + return c; + } + ++/** ++ * atomic_inc_not_zero_hint - increment if not null ++ * @v: pointer of type atomic_t ++ * @hint: probable value of the atomic before the increment ++ * ++ * This version of atomic_inc_not_zero() gives a hint of probable ++ * value of the atomic. This helps processor to not read the memory ++ * before doing the atomic read/modify/write cycle, lowering ++ * number of bus transactions on some arches. ++ * ++ * Returns: 0 if increment was not done, 1 otherwise. ++ */ ++#define atomic_inc_not_zero_hint atomic_inc_not_zero_hint ++static inline int atomic_inc_not_zero_hint(atomic_t *v, int hint) ++{ ++ int val, c = hint, new; ++ ++ /* sanity test, should be removed by compiler if hint is a constant */ ++ if (!hint) ++ return __atomic_add_unless(v, 1, 0); ++ ++ do { ++ asm volatile("incl %0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ "decl %0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ : "=r" (new) ++ : "0" (c)); ++ ++ val = atomic_cmpxchg(v, c, new); ++ if (val == c) ++ return 1; ++ c = val; ++ } while (c); ++ ++ return 0; ++} + + /* + * atomic_dec_if_positive - decrement by 1 if old value positive +@@ -293,14 +552,37 @@ static inline void atomic_or_long(unsigned long *v1, unsigned long v2) + #endif + + /* These are x86-specific, used by some header files */ +-#define atomic_clear_mask(mask, addr) \ +- asm volatile(LOCK_PREFIX "andl %0,%1" \ +- : : "r" (~(mask)), "m" (*(addr)) : "memory") ++static inline void atomic_clear_mask(unsigned int mask, atomic_t *v) ++{ ++ asm volatile(LOCK_PREFIX "andl %1,%0" ++ : "+m" (v->counter) ++ : "r" (~(mask)) ++ : "memory"); ++} + +-#define atomic_set_mask(mask, addr) \ +- asm volatile(LOCK_PREFIX "orl %0,%1" \ +- : : "r" ((unsigned)(mask)), "m" (*(addr)) \ +- : "memory") ++static inline void atomic_clear_mask_unchecked(unsigned int mask, atomic_unchecked_t *v) ++{ ++ asm volatile(LOCK_PREFIX "andl %1,%0" ++ : "+m" (v->counter) ++ : "r" (~(mask)) ++ : "memory"); ++} ++ ++static inline void atomic_set_mask(unsigned int mask, atomic_t *v) ++{ ++ asm volatile(LOCK_PREFIX "orl %1,%0" ++ : "+m" (v->counter) ++ : "r" (mask) ++ : "memory"); ++} ++ ++static inline void atomic_set_mask_unchecked(unsigned int mask, atomic_unchecked_t *v) ++{ ++ asm volatile(LOCK_PREFIX "orl %1,%0" ++ : "+m" (v->counter) ++ : "r" (mask) ++ : "memory"); ++} + + /* Atomic operations are already serializing on x86 */ + #define smp_mb__before_atomic_dec() barrier() +diff --git a/arch/x86/include/asm/atomic64_32.h b/arch/x86/include/asm/atomic64_32.h +index 1981199..36b9dfb 100644 +--- a/arch/x86/include/asm/atomic64_32.h ++++ b/arch/x86/include/asm/atomic64_32.h +@@ -12,6 +12,14 @@ typedef struct { + u64 __aligned(8) counter; + } atomic64_t; + ++#ifdef CONFIG_PAX_REFCOUNT ++typedef struct { ++ u64 __aligned(8) counter; ++} atomic64_unchecked_t; ++#else ++typedef atomic64_t atomic64_unchecked_t; ++#endif ++ + #define ATOMIC64_INIT(val) { (val) } + + #define __ATOMIC64_DECL(sym) void atomic64_##sym(atomic64_t *, ...) +@@ -37,21 +45,31 @@ typedef struct { + ATOMIC64_DECL_ONE(sym##_386) + + ATOMIC64_DECL_ONE(add_386); ++ATOMIC64_DECL_ONE(add_unchecked_386); + ATOMIC64_DECL_ONE(sub_386); ++ATOMIC64_DECL_ONE(sub_unchecked_386); + ATOMIC64_DECL_ONE(inc_386); ++ATOMIC64_DECL_ONE(inc_unchecked_386); + ATOMIC64_DECL_ONE(dec_386); ++ATOMIC64_DECL_ONE(dec_unchecked_386); + #endif + + #define alternative_atomic64(f, out, in...) \ + __alternative_atomic64(f, f, ASM_OUTPUT2(out), ## in) + + ATOMIC64_DECL(read); ++ATOMIC64_DECL(read_unchecked); + ATOMIC64_DECL(set); ++ATOMIC64_DECL(set_unchecked); + ATOMIC64_DECL(xchg); + ATOMIC64_DECL(add_return); ++ATOMIC64_DECL(add_return_unchecked); + ATOMIC64_DECL(sub_return); ++ATOMIC64_DECL(sub_return_unchecked); + ATOMIC64_DECL(inc_return); ++ATOMIC64_DECL(inc_return_unchecked); + ATOMIC64_DECL(dec_return); ++ATOMIC64_DECL(dec_return_unchecked); + ATOMIC64_DECL(dec_if_positive); + ATOMIC64_DECL(inc_not_zero); + ATOMIC64_DECL(add_unless); +@@ -77,6 +95,21 @@ static inline long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n + } + + /** ++ * atomic64_cmpxchg_unchecked - cmpxchg atomic64 variable ++ * @p: pointer to type atomic64_unchecked_t ++ * @o: expected value ++ * @n: new value ++ * ++ * Atomically sets @v to @n if it was equal to @o and returns ++ * the old value. ++ */ ++ ++static inline long long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long long o, long long n) ++{ ++ return cmpxchg64(&v->counter, o, n); ++} ++ ++/** + * atomic64_xchg - xchg atomic64 variable + * @v: pointer to type atomic64_t + * @n: value to assign +@@ -112,6 +145,22 @@ static inline void atomic64_set(atomic64_t *v, long long i) + } + + /** ++ * atomic64_set_unchecked - set atomic64 variable ++ * @v: pointer to type atomic64_unchecked_t ++ * @n: value to assign ++ * ++ * Atomically sets the value of @v to @n. ++ */ ++static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long long i) ++{ ++ unsigned high = (unsigned)(i >> 32); ++ unsigned low = (unsigned)i; ++ alternative_atomic64(set, /* no output */, ++ "S" (v), "b" (low), "c" (high) ++ : "eax", "edx", "memory"); ++} ++ ++/** + * atomic64_read - read atomic64 variable + * @v: pointer to type atomic64_t + * +@@ -125,6 +174,19 @@ static inline long long atomic64_read(const atomic64_t *v) + } + + /** ++ * atomic64_read_unchecked - read atomic64 variable ++ * @v: pointer to type atomic64_unchecked_t ++ * ++ * Atomically reads the value of @v and returns it. ++ */ ++static inline long long atomic64_read_unchecked(atomic64_unchecked_t *v) ++{ ++ long long r; ++ alternative_atomic64(read, "=&A" (r), "c" (v) : "memory"); ++ return r; ++ } ++ ++/** + * atomic64_add_return - add and return + * @i: integer value to add + * @v: pointer to type atomic64_t +@@ -139,6 +201,21 @@ static inline long long atomic64_add_return(long long i, atomic64_t *v) + return i; + } + ++/** ++ * atomic64_add_return_unchecked - add and return ++ * @i: integer value to add ++ * @v: pointer to type atomic64_unchecked_t ++ * ++ * Atomically adds @i to @v and returns @i + *@v ++ */ ++static inline long long atomic64_add_return_unchecked(long long i, atomic64_unchecked_t *v) ++{ ++ alternative_atomic64(add_return_unchecked, ++ ASM_OUTPUT2("+A" (i), "+c" (v)), ++ ASM_NO_INPUT_CLOBBER("memory")); ++ return i; ++} ++ + /* + * Other variants with different arithmetic operators: + */ +@@ -158,6 +235,14 @@ static inline long long atomic64_inc_return(atomic64_t *v) + return a; + } + ++static inline long long atomic64_inc_return_unchecked(atomic64_unchecked_t *v) ++{ ++ long long a; ++ alternative_atomic64(inc_return_unchecked, "=&A" (a), ++ "S" (v) : "memory", "ecx"); ++ return a; ++} ++ + static inline long long atomic64_dec_return(atomic64_t *v) + { + long long a; +@@ -182,6 +267,21 @@ static inline long long atomic64_add(long long i, atomic64_t *v) + } + + /** ++ * atomic64_add_unchecked - add integer to atomic64 variable ++ * @i: integer value to add ++ * @v: pointer to type atomic64_unchecked_t ++ * ++ * Atomically adds @i to @v. ++ */ ++static inline long long atomic64_add_unchecked(long long i, atomic64_unchecked_t *v) ++{ ++ __alternative_atomic64(add_unchecked, add_return_unchecked, ++ ASM_OUTPUT2("+A" (i), "+c" (v)), ++ ASM_NO_INPUT_CLOBBER("memory")); ++ return i; ++} ++ ++/** + * atomic64_sub - subtract the atomic64 variable + * @i: integer value to subtract + * @v: pointer to type atomic64_t +diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h +index 0e1cbfc..5623683 100644 +--- a/arch/x86/include/asm/atomic64_64.h ++++ b/arch/x86/include/asm/atomic64_64.h +@@ -18,7 +18,19 @@ + */ + static inline long atomic64_read(const atomic64_t *v) + { +- return (*(volatile long *)&(v)->counter); ++ return (*(volatile const long *)&(v)->counter); ++} ++ ++/** ++ * atomic64_read_unchecked - read atomic64 variable ++ * @v: pointer of type atomic64_unchecked_t ++ * ++ * Atomically reads the value of @v. ++ * Doesn't imply a read memory barrier. ++ */ ++static inline long atomic64_read_unchecked(const atomic64_unchecked_t *v) ++{ ++ return (*(volatile const long *)&(v)->counter); + } + + /** +@@ -34,6 +46,18 @@ static inline void atomic64_set(atomic64_t *v, long i) + } + + /** ++ * atomic64_set_unchecked - set atomic64 variable ++ * @v: pointer to type atomic64_unchecked_t ++ * @i: required value ++ * ++ * Atomically sets the value of @v to @i. ++ */ ++static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i) ++{ ++ v->counter = i; ++} ++ ++/** + * atomic64_add - add integer to atomic64 variable + * @i: integer value to add + * @v: pointer to type atomic64_t +@@ -42,6 +66,28 @@ static inline void atomic64_set(atomic64_t *v, long i) + */ + static inline void atomic64_add(long i, atomic64_t *v) + { ++ asm volatile(LOCK_PREFIX "addq %1,%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX "subq %1,%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ : "=m" (v->counter) ++ : "er" (i), "m" (v->counter)); ++} ++ ++/** ++ * atomic64_add_unchecked - add integer to atomic64 variable ++ * @i: integer value to add ++ * @v: pointer to type atomic64_unchecked_t ++ * ++ * Atomically adds @i to @v. ++ */ ++static inline void atomic64_add_unchecked(long i, atomic64_unchecked_t *v) ++{ + asm volatile(LOCK_PREFIX "addq %1,%0" + : "=m" (v->counter) + : "er" (i), "m" (v->counter)); +@@ -56,7 +102,29 @@ static inline void atomic64_add(long i, atomic64_t *v) + */ + static inline void atomic64_sub(long i, atomic64_t *v) + { +- asm volatile(LOCK_PREFIX "subq %1,%0" ++ asm volatile(LOCK_PREFIX "subq %1,%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX "addq %1,%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ : "=m" (v->counter) ++ : "er" (i), "m" (v->counter)); ++} ++ ++/** ++ * atomic64_sub_unchecked - subtract the atomic64 variable ++ * @i: integer value to subtract ++ * @v: pointer to type atomic64_unchecked_t ++ * ++ * Atomically subtracts @i from @v. ++ */ ++static inline void atomic64_sub_unchecked(long i, atomic64_unchecked_t *v) ++{ ++ asm volatile(LOCK_PREFIX "subq %1,%0\n" + : "=m" (v->counter) + : "er" (i), "m" (v->counter)); + } +@@ -74,7 +142,16 @@ static inline int atomic64_sub_and_test(long i, atomic64_t *v) + { + unsigned char c; + +- asm volatile(LOCK_PREFIX "subq %2,%0; sete %1" ++ asm volatile(LOCK_PREFIX "subq %2,%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX "addq %2,%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ "sete %1\n" + : "=m" (v->counter), "=qm" (c) + : "er" (i), "m" (v->counter) : "memory"); + return c; +@@ -88,6 +165,27 @@ static inline int atomic64_sub_and_test(long i, atomic64_t *v) + */ + static inline void atomic64_inc(atomic64_t *v) + { ++ asm volatile(LOCK_PREFIX "incq %0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX "decq %0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ : "=m" (v->counter) ++ : "m" (v->counter)); ++} ++ ++/** ++ * atomic64_inc_unchecked - increment atomic64 variable ++ * @v: pointer to type atomic64_unchecked_t ++ * ++ * Atomically increments @v by 1. ++ */ ++static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v) ++{ + asm volatile(LOCK_PREFIX "incq %0" + : "=m" (v->counter) + : "m" (v->counter)); +@@ -101,7 +199,28 @@ static inline void atomic64_inc(atomic64_t *v) + */ + static inline void atomic64_dec(atomic64_t *v) + { +- asm volatile(LOCK_PREFIX "decq %0" ++ asm volatile(LOCK_PREFIX "decq %0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX "incq %0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ : "=m" (v->counter) ++ : "m" (v->counter)); ++} ++ ++/** ++ * atomic64_dec_unchecked - decrement atomic64 variable ++ * @v: pointer to type atomic64_t ++ * ++ * Atomically decrements @v by 1. ++ */ ++static inline void atomic64_dec_unchecked(atomic64_unchecked_t *v) ++{ ++ asm volatile(LOCK_PREFIX "decq %0\n" + : "=m" (v->counter) + : "m" (v->counter)); + } +@@ -118,7 +237,16 @@ static inline int atomic64_dec_and_test(atomic64_t *v) + { + unsigned char c; + +- asm volatile(LOCK_PREFIX "decq %0; sete %1" ++ asm volatile(LOCK_PREFIX "decq %0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX "incq %0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ "sete %1\n" + : "=m" (v->counter), "=qm" (c) + : "m" (v->counter) : "memory"); + return c != 0; +@@ -136,7 +264,16 @@ static inline int atomic64_inc_and_test(atomic64_t *v) + { + unsigned char c; + +- asm volatile(LOCK_PREFIX "incq %0; sete %1" ++ asm volatile(LOCK_PREFIX "incq %0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX "decq %0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ "sete %1\n" + : "=m" (v->counter), "=qm" (c) + : "m" (v->counter) : "memory"); + return c != 0; +@@ -155,7 +292,16 @@ static inline int atomic64_add_negative(long i, atomic64_t *v) + { + unsigned char c; + +- asm volatile(LOCK_PREFIX "addq %2,%0; sets %1" ++ asm volatile(LOCK_PREFIX "addq %2,%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX "subq %2,%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ "sets %1\n" + : "=m" (v->counter), "=qm" (c) + : "er" (i), "m" (v->counter) : "memory"); + return c; +@@ -170,6 +316,18 @@ static inline int atomic64_add_negative(long i, atomic64_t *v) + */ + static inline long atomic64_add_return(long i, atomic64_t *v) + { ++ return i + xadd_check_overflow(&v->counter, i); ++} ++ ++/** ++ * atomic64_add_return_unchecked - add and return ++ * @i: integer value to add ++ * @v: pointer to type atomic64_unchecked_t ++ * ++ * Atomically adds @i to @v and returns @i + @v ++ */ ++static inline long atomic64_add_return_unchecked(long i, atomic64_unchecked_t *v) ++{ + return i + xadd(&v->counter, i); + } + +@@ -179,6 +337,10 @@ static inline long atomic64_sub_return(long i, atomic64_t *v) + } + + #define atomic64_inc_return(v) (atomic64_add_return(1, (v))) ++static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v) ++{ ++ return atomic64_add_return_unchecked(1, v); ++} + #define atomic64_dec_return(v) (atomic64_sub_return(1, (v))) + + static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new) +@@ -186,6 +348,11 @@ static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new) + return cmpxchg(&v->counter, old, new); + } + ++static inline long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long old, long new) ++{ ++ return cmpxchg(&v->counter, old, new); ++} ++ + static inline long atomic64_xchg(atomic64_t *v, long new) + { + return xchg(&v->counter, new); +@@ -202,17 +369,30 @@ static inline long atomic64_xchg(atomic64_t *v, long new) + */ + static inline int atomic64_add_unless(atomic64_t *v, long a, long u) + { +- long c, old; ++ long c, old, new; + c = atomic64_read(v); + for (;;) { +- if (unlikely(c == (u))) ++ if (unlikely(c == u)) + break; +- old = atomic64_cmpxchg((v), c, c + (a)); ++ ++ asm volatile("add %2,%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ "sub %2,%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ : "=r" (new) ++ : "0" (c), "ir" (a)); ++ ++ old = atomic64_cmpxchg(v, c, new); + if (likely(old == c)) + break; + c = old; + } +- return c != (u); ++ return c != u; + } + + #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) +diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h +index b97596e..9bd48b06 100644 +--- a/arch/x86/include/asm/bitops.h ++++ b/arch/x86/include/asm/bitops.h +@@ -38,7 +38,7 @@ + * a mask operation on a byte. + */ + #define IS_IMMEDIATE(nr) (__builtin_constant_p(nr)) +-#define CONST_MASK_ADDR(nr, addr) BITOP_ADDR((void *)(addr) + ((nr)>>3)) ++#define CONST_MASK_ADDR(nr, addr) BITOP_ADDR((volatile void *)(addr) + ((nr)>>3)) + #define CONST_MASK(nr) (1 << ((nr) & 7)) + + /** +diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h +index 5e1a2ee..c9f9533 100644 +--- a/arch/x86/include/asm/boot.h ++++ b/arch/x86/include/asm/boot.h +@@ -11,10 +11,15 @@ + #include <asm/pgtable_types.h> + + /* Physical address where kernel should be loaded. */ +-#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \ ++#define ____LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \ + + (CONFIG_PHYSICAL_ALIGN - 1)) \ + & ~(CONFIG_PHYSICAL_ALIGN - 1)) + ++#ifndef __ASSEMBLY__ ++extern unsigned char __LOAD_PHYSICAL_ADDR[]; ++#define LOAD_PHYSICAL_ADDR ((unsigned long)__LOAD_PHYSICAL_ADDR) ++#endif ++ + /* Minimum kernel alignment, as a power of two */ + #ifdef CONFIG_X86_64 + #define MIN_KERNEL_ALIGN_LG2 PMD_SHIFT +diff --git a/arch/x86/include/asm/cache.h b/arch/x86/include/asm/cache.h +index 48f99f1..d78ebf9 100644 +--- a/arch/x86/include/asm/cache.h ++++ b/arch/x86/include/asm/cache.h +@@ -5,12 +5,13 @@ + + /* L1 cache line size */ + #define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT) +-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) ++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) + + #define __read_mostly __attribute__((__section__(".data..read_mostly"))) ++#define __read_only __attribute__((__section__(".data..read_only"))) + + #define INTERNODE_CACHE_SHIFT CONFIG_X86_INTERNODE_CACHE_SHIFT +-#define INTERNODE_CACHE_BYTES (1 << INTERNODE_CACHE_SHIFT) ++#define INTERNODE_CACHE_BYTES (_AC(1,UL) << INTERNODE_CACHE_SHIFT) + + #ifdef CONFIG_X86_VSMP + #ifdef CONFIG_SMP +diff --git a/arch/x86/include/asm/cacheflush.h b/arch/x86/include/asm/cacheflush.h +index 9863ee3..4a1f8e1 100644 +--- a/arch/x86/include/asm/cacheflush.h ++++ b/arch/x86/include/asm/cacheflush.h +@@ -27,7 +27,7 @@ static inline unsigned long get_page_memtype(struct page *pg) + unsigned long pg_flags = pg->flags & _PGMT_MASK; + + if (pg_flags == _PGMT_DEFAULT) +- return -1; ++ return ~0UL; + else if (pg_flags == _PGMT_WC) + return _PAGE_CACHE_WC; + else if (pg_flags == _PGMT_UC_MINUS) +diff --git a/arch/x86/include/asm/checksum_32.h b/arch/x86/include/asm/checksum_32.h +index 46fc474..b02b0f9 100644 +--- a/arch/x86/include/asm/checksum_32.h ++++ b/arch/x86/include/asm/checksum_32.h +@@ -31,6 +31,14 @@ asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst, + int len, __wsum sum, + int *src_err_ptr, int *dst_err_ptr); + ++asmlinkage __wsum csum_partial_copy_generic_to_user(const void *src, void *dst, ++ int len, __wsum sum, ++ int *src_err_ptr, int *dst_err_ptr); ++ ++asmlinkage __wsum csum_partial_copy_generic_from_user(const void *src, void *dst, ++ int len, __wsum sum, ++ int *src_err_ptr, int *dst_err_ptr); ++ + /* + * Note: when you get a NULL pointer exception here this means someone + * passed in an incorrect kernel address to one of these functions. +@@ -50,7 +58,7 @@ static inline __wsum csum_partial_copy_from_user(const void __user *src, + int *err_ptr) + { + might_sleep(); +- return csum_partial_copy_generic((__force void *)src, dst, ++ return csum_partial_copy_generic_from_user((__force void *)src, dst, + len, sum, err_ptr, NULL); + } + +@@ -178,7 +186,7 @@ static inline __wsum csum_and_copy_to_user(const void *src, + { + might_sleep(); + if (access_ok(VERIFY_WRITE, dst, len)) +- return csum_partial_copy_generic(src, (__force void *)dst, ++ return csum_partial_copy_generic_to_user(src, (__force void *)dst, + len, sum, NULL, err_ptr); + + if (len) +diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h +index 99480e5..d81165b 100644 +--- a/arch/x86/include/asm/cmpxchg.h ++++ b/arch/x86/include/asm/cmpxchg.h +@@ -14,8 +14,12 @@ extern void __cmpxchg_wrong_size(void) + __compiletime_error("Bad argument size for cmpxchg"); + extern void __xadd_wrong_size(void) + __compiletime_error("Bad argument size for xadd"); ++extern void __xadd_check_overflow_wrong_size(void) ++ __compiletime_error("Bad argument size for xadd_check_overflow"); + extern void __add_wrong_size(void) + __compiletime_error("Bad argument size for add"); ++extern void __add_check_overflow_wrong_size(void) ++ __compiletime_error("Bad argument size for add_check_overflow"); + + /* + * Constants for operation sizes. On 32-bit, the 64-bit size it set to +@@ -67,6 +71,34 @@ extern void __add_wrong_size(void) + __ret; \ + }) + ++#define __xchg_op_check_overflow(ptr, arg, op, lock) \ ++ ({ \ ++ __typeof__ (*(ptr)) __ret = (arg); \ ++ switch (sizeof(*(ptr))) { \ ++ case __X86_CASE_L: \ ++ asm volatile (lock #op "l %0, %1\n" \ ++ "jno 0f\n" \ ++ "mov %0,%1\n" \ ++ "int $4\n0:\n" \ ++ _ASM_EXTABLE(0b, 0b) \ ++ : "+r" (__ret), "+m" (*(ptr)) \ ++ : : "memory", "cc"); \ ++ break; \ ++ case __X86_CASE_Q: \ ++ asm volatile (lock #op "q %q0, %1\n" \ ++ "jno 0f\n" \ ++ "mov %0,%1\n" \ ++ "int $4\n0:\n" \ ++ _ASM_EXTABLE(0b, 0b) \ ++ : "+r" (__ret), "+m" (*(ptr)) \ ++ : : "memory", "cc"); \ ++ break; \ ++ default: \ ++ __ ## op ## _check_overflow_wrong_size(); \ ++ } \ ++ __ret; \ ++ }) ++ + /* + * Note: no "lock" prefix even on SMP: xchg always implies lock anyway. + * Since this is generally used to protect other memory information, we +@@ -167,6 +199,9 @@ extern void __add_wrong_size(void) + #define xadd_sync(ptr, inc) __xadd((ptr), (inc), "lock; ") + #define xadd_local(ptr, inc) __xadd((ptr), (inc), "") + ++#define __xadd_check_overflow(ptr, inc, lock) __xchg_op_check_overflow((ptr), (inc), xadd, lock) ++#define xadd_check_overflow(ptr, inc) __xadd_check_overflow((ptr), (inc), LOCK_PREFIX) ++ + #define __add(ptr, inc, lock) \ + ({ \ + __typeof__ (*(ptr)) __ret = (inc); \ +diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h +index f91e80f..7f9bd27 100644 +--- a/arch/x86/include/asm/cpufeature.h ++++ b/arch/x86/include/asm/cpufeature.h +@@ -371,7 +371,7 @@ static __always_inline __pure bool __static_cpu_has(u16 bit) + ".section .discard,\"aw\",@progbits\n" + " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */ + ".previous\n" +- ".section .altinstr_replacement,\"ax\"\n" ++ ".section .altinstr_replacement,\"a\"\n" + "3: movb $1,%0\n" + "4:\n" + ".previous\n" +diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h +index e95822d..a90010e 100644 +--- a/arch/x86/include/asm/desc.h ++++ b/arch/x86/include/asm/desc.h +@@ -4,6 +4,7 @@ + #include <asm/desc_defs.h> + #include <asm/ldt.h> + #include <asm/mmu.h> ++#include <asm/pgtable.h> + + #include <linux/smp.h> + +@@ -16,6 +17,7 @@ static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *in + + desc->type = (info->read_exec_only ^ 1) << 1; + desc->type |= info->contents << 2; ++ desc->type |= info->seg_not_present ^ 1; + + desc->s = 1; + desc->dpl = 0x3; +@@ -34,19 +36,14 @@ static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *in + } + + extern struct desc_ptr idt_descr; +-extern gate_desc idt_table[]; + extern struct desc_ptr nmi_idt_descr; +-extern gate_desc nmi_idt_table[]; +- +-struct gdt_page { +- struct desc_struct gdt[GDT_ENTRIES]; +-} __attribute__((aligned(PAGE_SIZE))); +- +-DECLARE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page); ++extern gate_desc idt_table[256]; ++extern gate_desc nmi_idt_table[256]; + ++extern struct desc_struct cpu_gdt_table[NR_CPUS][PAGE_SIZE / sizeof(struct desc_struct)]; + static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu) + { +- return per_cpu(gdt_page, cpu).gdt; ++ return cpu_gdt_table[cpu]; + } + + #ifdef CONFIG_X86_64 +@@ -71,8 +68,14 @@ static inline void pack_gate(gate_desc *gate, unsigned char type, + unsigned long base, unsigned dpl, unsigned flags, + unsigned short seg) + { +- gate->a = (seg << 16) | (base & 0xffff); +- gate->b = (base & 0xffff0000) | (((0x80 | type | (dpl << 5)) & 0xff) << 8); ++ gate->gate.offset_low = base; ++ gate->gate.seg = seg; ++ gate->gate.reserved = 0; ++ gate->gate.type = type; ++ gate->gate.s = 0; ++ gate->gate.dpl = dpl; ++ gate->gate.p = 1; ++ gate->gate.offset_high = base >> 16; + } + + #endif +@@ -117,12 +120,16 @@ static inline void paravirt_free_ldt(struct desc_struct *ldt, unsigned entries) + + static inline void native_write_idt_entry(gate_desc *idt, int entry, const gate_desc *gate) + { ++ pax_open_kernel(); + memcpy(&idt[entry], gate, sizeof(*gate)); ++ pax_close_kernel(); + } + + static inline void native_write_ldt_entry(struct desc_struct *ldt, int entry, const void *desc) + { ++ pax_open_kernel(); + memcpy(&ldt[entry], desc, 8); ++ pax_close_kernel(); + } + + static inline void +@@ -136,7 +143,9 @@ native_write_gdt_entry(struct desc_struct *gdt, int entry, const void *desc, int + default: size = sizeof(*gdt); break; + } + ++ pax_open_kernel(); + memcpy(&gdt[entry], desc, size); ++ pax_close_kernel(); + } + + static inline void pack_descriptor(struct desc_struct *desc, unsigned long base, +@@ -209,7 +218,9 @@ static inline void native_set_ldt(const void *addr, unsigned int entries) + + static inline void native_load_tr_desc(void) + { ++ pax_open_kernel(); + asm volatile("ltr %w0"::"q" (GDT_ENTRY_TSS*8)); ++ pax_close_kernel(); + } + + static inline void native_load_gdt(const struct desc_ptr *dtr) +@@ -246,8 +257,10 @@ static inline void native_load_tls(struct thread_struct *t, unsigned int cpu) + struct desc_struct *gdt = get_cpu_gdt_table(cpu); + unsigned int i; + ++ pax_open_kernel(); + for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++) + gdt[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i]; ++ pax_close_kernel(); + } + + #define _LDT_empty(info) \ +@@ -310,7 +323,7 @@ static inline void set_desc_limit(struct desc_struct *desc, unsigned long limit) + } + + #ifdef CONFIG_X86_64 +-static inline void set_nmi_gate(int gate, void *addr) ++static inline void set_nmi_gate(int gate, const void *addr) + { + gate_desc s; + +@@ -319,7 +332,7 @@ static inline void set_nmi_gate(int gate, void *addr) + } + #endif + +-static inline void _set_gate(int gate, unsigned type, void *addr, ++static inline void _set_gate(int gate, unsigned type, const void *addr, + unsigned dpl, unsigned ist, unsigned seg) + { + gate_desc s; +@@ -338,7 +351,7 @@ static inline void _set_gate(int gate, unsigned type, void *addr, + * Pentium F0 0F bugfix can have resulted in the mapped + * IDT being write-protected. + */ +-static inline void set_intr_gate(unsigned int n, void *addr) ++static inline void set_intr_gate(unsigned int n, const void *addr) + { + BUG_ON((unsigned)n > 0xFF); + _set_gate(n, GATE_INTERRUPT, addr, 0, 0, __KERNEL_CS); +@@ -368,19 +381,19 @@ static inline void alloc_intr_gate(unsigned int n, void *addr) + /* + * This routine sets up an interrupt gate at directory privilege level 3. + */ +-static inline void set_system_intr_gate(unsigned int n, void *addr) ++static inline void set_system_intr_gate(unsigned int n, const void *addr) + { + BUG_ON((unsigned)n > 0xFF); + _set_gate(n, GATE_INTERRUPT, addr, 0x3, 0, __KERNEL_CS); + } + +-static inline void set_system_trap_gate(unsigned int n, void *addr) ++static inline void set_system_trap_gate(unsigned int n, const void *addr) + { + BUG_ON((unsigned)n > 0xFF); + _set_gate(n, GATE_TRAP, addr, 0x3, 0, __KERNEL_CS); + } + +-static inline void set_trap_gate(unsigned int n, void *addr) ++static inline void set_trap_gate(unsigned int n, const void *addr) + { + BUG_ON((unsigned)n > 0xFF); + _set_gate(n, GATE_TRAP, addr, 0, 0, __KERNEL_CS); +@@ -389,19 +402,31 @@ static inline void set_trap_gate(unsigned int n, void *addr) + static inline void set_task_gate(unsigned int n, unsigned int gdt_entry) + { + BUG_ON((unsigned)n > 0xFF); +- _set_gate(n, GATE_TASK, (void *)0, 0, 0, (gdt_entry<<3)); ++ _set_gate(n, GATE_TASK, (const void *)0, 0, 0, (gdt_entry<<3)); + } + +-static inline void set_intr_gate_ist(int n, void *addr, unsigned ist) ++static inline void set_intr_gate_ist(int n, const void *addr, unsigned ist) + { + BUG_ON((unsigned)n > 0xFF); + _set_gate(n, GATE_INTERRUPT, addr, 0, ist, __KERNEL_CS); + } + +-static inline void set_system_intr_gate_ist(int n, void *addr, unsigned ist) ++static inline void set_system_intr_gate_ist(int n, const void *addr, unsigned ist) + { + BUG_ON((unsigned)n > 0xFF); + _set_gate(n, GATE_INTERRUPT, addr, 0x3, ist, __KERNEL_CS); + } + ++#ifdef CONFIG_X86_32 ++static inline void set_user_cs(unsigned long base, unsigned long limit, int cpu) ++{ ++ struct desc_struct d; ++ ++ if (likely(limit)) ++ limit = (limit - 1UL) >> PAGE_SHIFT; ++ pack_descriptor(&d, base, limit, 0xFB, 0xC); ++ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_DEFAULT_USER_CS, &d, DESCTYPE_S); ++} ++#endif ++ + #endif /* _ASM_X86_DESC_H */ +diff --git a/arch/x86/include/asm/desc_defs.h b/arch/x86/include/asm/desc_defs.h +index 278441f..b95a174 100644 +--- a/arch/x86/include/asm/desc_defs.h ++++ b/arch/x86/include/asm/desc_defs.h +@@ -31,6 +31,12 @@ struct desc_struct { + unsigned base1: 8, type: 4, s: 1, dpl: 2, p: 1; + unsigned limit: 4, avl: 1, l: 1, d: 1, g: 1, base2: 8; + }; ++ struct { ++ u16 offset_low; ++ u16 seg; ++ unsigned reserved: 8, type: 4, s: 1, dpl: 2, p: 1; ++ unsigned offset_high: 16; ++ } gate; + }; + } __attribute__((packed)); + +diff --git a/arch/x86/include/asm/e820.h b/arch/x86/include/asm/e820.h +index 3778256..c5d4fce 100644 +--- a/arch/x86/include/asm/e820.h ++++ b/arch/x86/include/asm/e820.h +@@ -69,7 +69,7 @@ struct e820map { + #define ISA_START_ADDRESS 0xa0000 + #define ISA_END_ADDRESS 0x100000 + +-#define BIOS_BEGIN 0x000a0000 ++#define BIOS_BEGIN 0x000c0000 + #define BIOS_END 0x00100000 + + #define BIOS_ROM_BASE 0xffe00000 +diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h +index 5939f44..f8845f6 100644 +--- a/arch/x86/include/asm/elf.h ++++ b/arch/x86/include/asm/elf.h +@@ -243,7 +243,25 @@ extern int force_personality32; + the loader. We need to make sure that it is out of the way of the program + that it will "exec", and that there is sufficient room for the brk. */ + ++#ifdef CONFIG_PAX_SEGMEXEC ++#define ELF_ET_DYN_BASE ((current->mm->pax_flags & MF_PAX_SEGMEXEC) ? SEGMEXEC_TASK_SIZE/3*2 : TASK_SIZE/3*2) ++#else + #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) ++#endif ++ ++#ifdef CONFIG_PAX_ASLR ++#ifdef CONFIG_X86_32 ++#define PAX_ELF_ET_DYN_BASE 0x10000000UL ++ ++#define PAX_DELTA_MMAP_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16) ++#define PAX_DELTA_STACK_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16) ++#else ++#define PAX_ELF_ET_DYN_BASE 0x400000UL ++ ++#define PAX_DELTA_MMAP_LEN ((test_thread_flag(TIF_ADDR32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3) ++#define PAX_DELTA_STACK_LEN ((test_thread_flag(TIF_ADDR32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3) ++#endif ++#endif + + /* This yields a mask that user programs can use to figure out what + instruction set this CPU supports. This could be done in user space, +@@ -296,16 +314,12 @@ do { \ + + #define ARCH_DLINFO \ + do { \ +- if (vdso_enabled) \ +- NEW_AUX_ENT(AT_SYSINFO_EHDR, \ +- (unsigned long)current->mm->context.vdso); \ ++ NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso); \ + } while (0) + + #define ARCH_DLINFO_X32 \ + do { \ +- if (vdso_enabled) \ +- NEW_AUX_ENT(AT_SYSINFO_EHDR, \ +- (unsigned long)current->mm->context.vdso); \ ++ NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso); \ + } while (0) + + #define AT_SYSINFO 32 +@@ -320,7 +334,7 @@ else \ + + #endif /* !CONFIG_X86_32 */ + +-#define VDSO_CURRENT_BASE ((unsigned long)current->mm->context.vdso) ++#define VDSO_CURRENT_BASE (current->mm->context.vdso) + + #define VDSO_ENTRY \ + ((unsigned long)VDSO32_SYMBOL(VDSO_CURRENT_BASE, vsyscall)) +@@ -336,9 +350,6 @@ extern int x32_setup_additional_pages(struct linux_binprm *bprm, + extern int syscall32_setup_pages(struct linux_binprm *, int exstack); + #define compat_arch_setup_additional_pages syscall32_setup_pages + +-extern unsigned long arch_randomize_brk(struct mm_struct *mm); +-#define arch_randomize_brk arch_randomize_brk +- + /* + * True on X86_32 or when emulating IA32 on X86_64 + */ +diff --git a/arch/x86/include/asm/emergency-restart.h b/arch/x86/include/asm/emergency-restart.h +index cc70c1c..d96d011 100644 +--- a/arch/x86/include/asm/emergency-restart.h ++++ b/arch/x86/include/asm/emergency-restart.h +@@ -15,6 +15,6 @@ enum reboot_type { + + extern enum reboot_type reboot_type; + +-extern void machine_emergency_restart(void); ++extern void machine_emergency_restart(void) __noreturn; + + #endif /* _ASM_X86_EMERGENCY_RESTART_H */ +diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h +index 4fa8815..71b121a 100644 +--- a/arch/x86/include/asm/fpu-internal.h ++++ b/arch/x86/include/asm/fpu-internal.h +@@ -86,6 +86,11 @@ static inline int fxrstor_checking(struct i387_fxsave_struct *fx) + { + int err; + ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++ if ((unsigned long)fx < PAX_USER_SHADOW_BASE) ++ fx = (struct i387_fxsave_struct __user *)((void *)fx + PAX_USER_SHADOW_BASE); ++#endif ++ + /* See comment in fxsave() below. */ + #ifdef CONFIG_AS_FXSAVEQ + asm volatile("1: fxrstorq %[fx]\n\t" +@@ -115,6 +120,11 @@ static inline int fxsave_user(struct i387_fxsave_struct __user *fx) + { + int err; + ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++ if ((unsigned long)fx < PAX_USER_SHADOW_BASE) ++ fx = (struct i387_fxsave_struct __user *)((void __user *)fx + PAX_USER_SHADOW_BASE); ++#endif ++ + /* + * Clear the bytes not touched by the fxsave and reserved + * for the SW usage. +@@ -271,7 +281,7 @@ static inline int restore_fpu_checking(struct task_struct *tsk) + "emms\n\t" /* clear stack tags */ + "fildl %P[addr]", /* set F?P to defined value */ + X86_FEATURE_FXSAVE_LEAK, +- [addr] "m" (tsk->thread.fpu.has_fpu)); ++ [addr] "m" (init_tss[smp_processor_id()].x86_tss.sp0)); + + return fpu_restore_checking(&tsk->thread.fpu); + } +diff --git a/arch/x86/include/asm/futex.h b/arch/x86/include/asm/futex.h +index 71ecbcb..bac10b7 100644 +--- a/arch/x86/include/asm/futex.h ++++ b/arch/x86/include/asm/futex.h +@@ -11,16 +11,18 @@ + #include <asm/processor.h> + + #define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \ ++ typecheck(u32 __user *, uaddr); \ + asm volatile("1:\t" insn "\n" \ + "2:\t.section .fixup,\"ax\"\n" \ + "3:\tmov\t%3, %1\n" \ + "\tjmp\t2b\n" \ + "\t.previous\n" \ + _ASM_EXTABLE(1b, 3b) \ +- : "=r" (oldval), "=r" (ret), "+m" (*uaddr) \ ++ : "=r" (oldval), "=r" (ret), "+m" (*(u32 __user *)____m(uaddr))\ + : "i" (-EFAULT), "0" (oparg), "1" (0)) + + #define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \ ++ typecheck(u32 __user *, uaddr); \ + asm volatile("1:\tmovl %2, %0\n" \ + "\tmovl\t%0, %3\n" \ + "\t" insn "\n" \ +@@ -33,7 +35,7 @@ + _ASM_EXTABLE(1b, 4b) \ + _ASM_EXTABLE(2b, 4b) \ + : "=&a" (oldval), "=&r" (ret), \ +- "+m" (*uaddr), "=&r" (tem) \ ++ "+m" (*(u32 __user *)____m(uaddr)), "=&r" (tem) \ + : "r" (oparg), "i" (-EFAULT), "1" (0)) + + static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr) +@@ -60,10 +62,10 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr) + + switch (op) { + case FUTEX_OP_SET: +- __futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg); ++ __futex_atomic_op1(__copyuser_seg"xchgl %0, %2", ret, oldval, uaddr, oparg); + break; + case FUTEX_OP_ADD: +- __futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, oldval, ++ __futex_atomic_op1(LOCK_PREFIX __copyuser_seg"xaddl %0, %2", ret, oldval, + uaddr, oparg); + break; + case FUTEX_OP_OR: +@@ -122,13 +124,13 @@ static inline int futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, + if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32))) + return -EFAULT; + +- asm volatile("1:\t" LOCK_PREFIX "cmpxchgl %4, %2\n" ++ asm volatile("1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgl %4, %2\n" + "2:\t.section .fixup, \"ax\"\n" + "3:\tmov %3, %0\n" + "\tjmp 2b\n" + "\t.previous\n" + _ASM_EXTABLE(1b, 3b) +- : "+r" (ret), "=a" (oldval), "+m" (*uaddr) ++ : "+r" (ret), "=a" (oldval), "+m" (*(u32 __user *)____m(uaddr)) + : "i" (-EFAULT), "r" (newval), "1" (oldval) + : "memory" + ); +diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h +index eb92a6e..b98b2f4 100644 +--- a/arch/x86/include/asm/hw_irq.h ++++ b/arch/x86/include/asm/hw_irq.h +@@ -136,8 +136,8 @@ extern void setup_ioapic_dest(void); + extern void enable_IO_APIC(void); + + /* Statistics */ +-extern atomic_t irq_err_count; +-extern atomic_t irq_mis_count; ++extern atomic_unchecked_t irq_err_count; ++extern atomic_unchecked_t irq_mis_count; + + /* EISA */ + extern void eisa_set_level_irq(unsigned int irq); +diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h +index d8e8eef..99f81ae 100644 +--- a/arch/x86/include/asm/io.h ++++ b/arch/x86/include/asm/io.h +@@ -194,6 +194,17 @@ extern void set_iounmap_nonlazy(void); + + #include <linux/vmalloc.h> + ++#define ARCH_HAS_VALID_PHYS_ADDR_RANGE ++static inline int valid_phys_addr_range(unsigned long addr, size_t count) ++{ ++ return ((addr + count + PAGE_SIZE - 1) >> PAGE_SHIFT) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0; ++} ++ ++static inline int valid_mmap_phys_addr_range(unsigned long pfn, size_t count) ++{ ++ return (pfn + (count >> PAGE_SHIFT)) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0; ++} ++ + /* + * Convert a virtual cached pointer to an uncached pointer + */ +diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h +index bba3cf8..06bc8da 100644 +--- a/arch/x86/include/asm/irqflags.h ++++ b/arch/x86/include/asm/irqflags.h +@@ -141,6 +141,11 @@ static inline notrace unsigned long arch_local_irq_save(void) + sti; \ + sysexit + ++#define GET_CR0_INTO_RDI mov %cr0, %rdi ++#define SET_RDI_INTO_CR0 mov %rdi, %cr0 ++#define GET_CR3_INTO_RDI mov %cr3, %rdi ++#define SET_RDI_INTO_CR3 mov %rdi, %cr3 ++ + #else + #define INTERRUPT_RETURN iret + #define ENABLE_INTERRUPTS_SYSEXIT sti; sysexit +diff --git a/arch/x86/include/asm/kprobes.h b/arch/x86/include/asm/kprobes.h +index 5478825..839e88c 100644 +--- a/arch/x86/include/asm/kprobes.h ++++ b/arch/x86/include/asm/kprobes.h +@@ -37,13 +37,8 @@ typedef u8 kprobe_opcode_t; + #define RELATIVEJUMP_SIZE 5 + #define RELATIVECALL_OPCODE 0xe8 + #define RELATIVE_ADDR_SIZE 4 +-#define MAX_STACK_SIZE 64 +-#define MIN_STACK_SIZE(ADDR) \ +- (((MAX_STACK_SIZE) < (((unsigned long)current_thread_info()) + \ +- THREAD_SIZE - (unsigned long)(ADDR))) \ +- ? (MAX_STACK_SIZE) \ +- : (((unsigned long)current_thread_info()) + \ +- THREAD_SIZE - (unsigned long)(ADDR))) ++#define MAX_STACK_SIZE 64UL ++#define MIN_STACK_SIZE(ADDR) min(MAX_STACK_SIZE, current->thread.sp0 - (unsigned long)(ADDR)) + + #define flush_insn_slot(p) do { } while (0) + +diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h +index e216ba0..453f6ec 100644 +--- a/arch/x86/include/asm/kvm_host.h ++++ b/arch/x86/include/asm/kvm_host.h +@@ -679,7 +679,7 @@ struct kvm_x86_ops { + int (*check_intercept)(struct kvm_vcpu *vcpu, + struct x86_instruction_info *info, + enum x86_intercept_stage stage); +-}; ++} __do_const; + + struct kvm_arch_async_pf { + u32 token; +diff --git a/arch/x86/include/asm/local.h b/arch/x86/include/asm/local.h +index c8bed0d..e5721fa 100644 +--- a/arch/x86/include/asm/local.h ++++ b/arch/x86/include/asm/local.h +@@ -17,26 +17,58 @@ typedef struct { + + static inline void local_inc(local_t *l) + { +- asm volatile(_ASM_INC "%0" ++ asm volatile(_ASM_INC "%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ _ASM_DEC "%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ + : "+m" (l->a.counter)); + } + + static inline void local_dec(local_t *l) + { +- asm volatile(_ASM_DEC "%0" ++ asm volatile(_ASM_DEC "%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ _ASM_INC "%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ + : "+m" (l->a.counter)); + } + + static inline void local_add(long i, local_t *l) + { +- asm volatile(_ASM_ADD "%1,%0" ++ asm volatile(_ASM_ADD "%1,%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ _ASM_SUB "%1,%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ + : "+m" (l->a.counter) + : "ir" (i)); + } + + static inline void local_sub(long i, local_t *l) + { +- asm volatile(_ASM_SUB "%1,%0" ++ asm volatile(_ASM_SUB "%1,%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ _ASM_ADD "%1,%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ + : "+m" (l->a.counter) + : "ir" (i)); + } +@@ -54,7 +86,16 @@ static inline int local_sub_and_test(long i, local_t *l) + { + unsigned char c; + +- asm volatile(_ASM_SUB "%2,%0; sete %1" ++ asm volatile(_ASM_SUB "%2,%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ _ASM_ADD "%2,%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ "sete %1\n" + : "+m" (l->a.counter), "=qm" (c) + : "ir" (i) : "memory"); + return c; +@@ -72,7 +113,16 @@ static inline int local_dec_and_test(local_t *l) + { + unsigned char c; + +- asm volatile(_ASM_DEC "%0; sete %1" ++ asm volatile(_ASM_DEC "%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ _ASM_INC "%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ "sete %1\n" + : "+m" (l->a.counter), "=qm" (c) + : : "memory"); + return c != 0; +@@ -90,7 +140,16 @@ static inline int local_inc_and_test(local_t *l) + { + unsigned char c; + +- asm volatile(_ASM_INC "%0; sete %1" ++ asm volatile(_ASM_INC "%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ _ASM_DEC "%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ "sete %1\n" + : "+m" (l->a.counter), "=qm" (c) + : : "memory"); + return c != 0; +@@ -109,7 +168,16 @@ static inline int local_add_negative(long i, local_t *l) + { + unsigned char c; + +- asm volatile(_ASM_ADD "%2,%0; sets %1" ++ asm volatile(_ASM_ADD "%2,%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ _ASM_SUB "%2,%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ "sets %1\n" + : "+m" (l->a.counter), "=qm" (c) + : "ir" (i) : "memory"); + return c; +@@ -132,7 +200,15 @@ static inline long local_add_return(long i, local_t *l) + #endif + /* Modern 486+ processor */ + __i = i; +- asm volatile(_ASM_XADD "%0, %1;" ++ asm volatile(_ASM_XADD "%0, %1\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ _ASM_MOV "%0,%1\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ + : "+r" (i), "+m" (l->a.counter) + : : "memory"); + return i + __i; +diff --git a/arch/x86/include/asm/mman.h b/arch/x86/include/asm/mman.h +index 593e51d..fa69c9a 100644 +--- a/arch/x86/include/asm/mman.h ++++ b/arch/x86/include/asm/mman.h +@@ -5,4 +5,14 @@ + + #include <asm-generic/mman.h> + ++#ifdef __KERNEL__ ++#ifndef __ASSEMBLY__ ++#ifdef CONFIG_X86_32 ++#define arch_mmap_check i386_mmap_check ++int i386_mmap_check(unsigned long addr, unsigned long len, ++ unsigned long flags); ++#endif ++#endif ++#endif ++ + #endif /* _ASM_X86_MMAN_H */ +diff --git a/arch/x86/include/asm/mmu.h b/arch/x86/include/asm/mmu.h +index 5f55e69..e20bfb1 100644 +--- a/arch/x86/include/asm/mmu.h ++++ b/arch/x86/include/asm/mmu.h +@@ -9,7 +9,7 @@ + * we put the segment information here. + */ + typedef struct { +- void *ldt; ++ struct desc_struct *ldt; + int size; + + #ifdef CONFIG_X86_64 +@@ -18,7 +18,19 @@ typedef struct { + #endif + + struct mutex lock; +- void *vdso; ++ unsigned long vdso; ++ ++#ifdef CONFIG_X86_32 ++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) ++ unsigned long user_cs_base; ++ unsigned long user_cs_limit; ++ ++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP) ++ cpumask_t cpu_user_cs_mask; ++#endif ++ ++#endif ++#endif + } mm_context_t; + + #ifdef CONFIG_SMP +diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h +index 6902152..da4283a 100644 +--- a/arch/x86/include/asm/mmu_context.h ++++ b/arch/x86/include/asm/mmu_context.h +@@ -24,6 +24,18 @@ void destroy_context(struct mm_struct *mm); + + static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) + { ++ ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++ unsigned int i; ++ pgd_t *pgd; ++ ++ pax_open_kernel(); ++ pgd = get_cpu_pgd(smp_processor_id()); ++ for (i = USER_PGD_PTRS; i < 2 * USER_PGD_PTRS; ++i) ++ set_pgd_batched(pgd+i, native_make_pgd(0)); ++ pax_close_kernel(); ++#endif ++ + #ifdef CONFIG_SMP + if (percpu_read(cpu_tlbstate.state) == TLBSTATE_OK) + percpu_write(cpu_tlbstate.state, TLBSTATE_LAZY); +@@ -34,16 +46,30 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, + struct task_struct *tsk) + { + unsigned cpu = smp_processor_id(); ++#if defined(CONFIG_X86_32) && defined(CONFIG_SMP) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)) ++ int tlbstate = TLBSTATE_OK; ++#endif + + if (likely(prev != next)) { + #ifdef CONFIG_SMP ++#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)) ++ tlbstate = percpu_read(cpu_tlbstate.state); ++#endif + percpu_write(cpu_tlbstate.state, TLBSTATE_OK); + percpu_write(cpu_tlbstate.active_mm, next); + #endif + cpumask_set_cpu(cpu, mm_cpumask(next)); + + /* Re-load page tables */ ++#ifdef CONFIG_PAX_PER_CPU_PGD ++ pax_open_kernel(); ++ __clone_user_pgds(get_cpu_pgd(cpu), next->pgd); ++ __shadow_user_pgds(get_cpu_pgd(cpu) + USER_PGD_PTRS, next->pgd); ++ pax_close_kernel(); ++ load_cr3(get_cpu_pgd(cpu)); ++#else + load_cr3(next->pgd); ++#endif + + /* stop flush ipis for the previous mm */ + cpumask_clear_cpu(cpu, mm_cpumask(prev)); +@@ -53,9 +79,38 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, + */ + if (unlikely(prev->context.ldt != next->context.ldt)) + load_LDT_nolock(&next->context); +- } ++ ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP) ++ if (!(__supported_pte_mask & _PAGE_NX)) { ++ smp_mb__before_clear_bit(); ++ cpu_clear(cpu, prev->context.cpu_user_cs_mask); ++ smp_mb__after_clear_bit(); ++ cpu_set(cpu, next->context.cpu_user_cs_mask); ++ } ++#endif ++ ++#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)) ++ if (unlikely(prev->context.user_cs_base != next->context.user_cs_base || ++ prev->context.user_cs_limit != next->context.user_cs_limit)) ++ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu); + #ifdef CONFIG_SMP ++ else if (unlikely(tlbstate != TLBSTATE_OK)) ++ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu); ++#endif ++#endif ++ ++ } + else { ++ ++#ifdef CONFIG_PAX_PER_CPU_PGD ++ pax_open_kernel(); ++ __clone_user_pgds(get_cpu_pgd(cpu), next->pgd); ++ __shadow_user_pgds(get_cpu_pgd(cpu) + USER_PGD_PTRS, next->pgd); ++ pax_close_kernel(); ++ load_cr3(get_cpu_pgd(cpu)); ++#endif ++ ++#ifdef CONFIG_SMP + percpu_write(cpu_tlbstate.state, TLBSTATE_OK); + BUG_ON(percpu_read(cpu_tlbstate.active_mm) != next); + +@@ -64,11 +119,28 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, + * tlb flush IPI delivery. We must reload CR3 + * to make sure to use no freed page tables. + */ ++ ++#ifndef CONFIG_PAX_PER_CPU_PGD + load_cr3(next->pgd); ++#endif ++ + load_LDT_nolock(&next->context); ++ ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) ++ if (!(__supported_pte_mask & _PAGE_NX)) ++ cpu_set(cpu, next->context.cpu_user_cs_mask); ++#endif ++ ++#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)) ++#ifdef CONFIG_PAX_PAGEEXEC ++ if (!((next->pax_flags & MF_PAX_PAGEEXEC) && (__supported_pte_mask & _PAGE_NX))) ++#endif ++ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu); ++#endif ++ + } ++#endif + } +-#endif + } + + #define activate_mm(prev, next) \ +diff --git a/arch/x86/include/asm/module.h b/arch/x86/include/asm/module.h +index 9eae775..c914fea 100644 +--- a/arch/x86/include/asm/module.h ++++ b/arch/x86/include/asm/module.h +@@ -5,6 +5,7 @@ + + #ifdef CONFIG_X86_64 + /* X86_64 does not define MODULE_PROC_FAMILY */ ++#define MODULE_PROC_FAMILY "" + #elif defined CONFIG_M386 + #define MODULE_PROC_FAMILY "386 " + #elif defined CONFIG_M486 +@@ -59,8 +60,20 @@ + #error unknown processor family + #endif + +-#ifdef CONFIG_X86_32 +-# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY ++#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS ++#define MODULE_PAX_KERNEXEC "KERNEXEC_BTS " ++#elif defined(CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR) ++#define MODULE_PAX_KERNEXEC "KERNEXEC_OR " ++#else ++#define MODULE_PAX_KERNEXEC "" + #endif + ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++#define MODULE_PAX_UDEREF "UDEREF " ++#else ++#define MODULE_PAX_UDEREF "" ++#endif ++ ++#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_PAX_KERNEXEC MODULE_PAX_UDEREF ++ + #endif /* _ASM_X86_MODULE_H */ +diff --git a/arch/x86/include/asm/page_64_types.h b/arch/x86/include/asm/page_64_types.h +index 7639dbf..e08a58c 100644 +--- a/arch/x86/include/asm/page_64_types.h ++++ b/arch/x86/include/asm/page_64_types.h +@@ -56,7 +56,7 @@ void copy_page(void *to, void *from); + + /* duplicated to the one in bootmem.h */ + extern unsigned long max_pfn; +-extern unsigned long phys_base; ++extern const unsigned long phys_base; + + extern unsigned long __phys_addr(unsigned long); + #define __phys_reloc_hide(x) (x) +diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h +index aa0f913..0c5bc6a 100644 +--- a/arch/x86/include/asm/paravirt.h ++++ b/arch/x86/include/asm/paravirt.h +@@ -668,6 +668,18 @@ static inline void set_pgd(pgd_t *pgdp, pgd_t pgd) + val); + } + ++static inline void set_pgd_batched(pgd_t *pgdp, pgd_t pgd) ++{ ++ pgdval_t val = native_pgd_val(pgd); ++ ++ if (sizeof(pgdval_t) > sizeof(long)) ++ PVOP_VCALL3(pv_mmu_ops.set_pgd_batched, pgdp, ++ val, (u64)val >> 32); ++ else ++ PVOP_VCALL2(pv_mmu_ops.set_pgd_batched, pgdp, ++ val); ++} ++ + static inline void pgd_clear(pgd_t *pgdp) + { + set_pgd(pgdp, __pgd(0)); +@@ -749,6 +761,21 @@ static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx, + pv_mmu_ops.set_fixmap(idx, phys, flags); + } + ++#ifdef CONFIG_PAX_KERNEXEC ++static inline unsigned long pax_open_kernel(void) ++{ ++ return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_open_kernel); ++} ++ ++static inline unsigned long pax_close_kernel(void) ++{ ++ return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_close_kernel); ++} ++#else ++static inline unsigned long pax_open_kernel(void) { return 0; } ++static inline unsigned long pax_close_kernel(void) { return 0; } ++#endif ++ + #if defined(CONFIG_SMP) && defined(CONFIG_PARAVIRT_SPINLOCKS) + + static inline int arch_spin_is_locked(struct arch_spinlock *lock) +@@ -965,7 +992,7 @@ extern void default_banner(void); + + #define PARA_PATCH(struct, off) ((PARAVIRT_PATCH_##struct + (off)) / 4) + #define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .long, 4) +-#define PARA_INDIRECT(addr) *%cs:addr ++#define PARA_INDIRECT(addr) *%ss:addr + #endif + + #define INTERRUPT_RETURN \ +@@ -1042,6 +1069,21 @@ extern void default_banner(void); + PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_irq_enable_sysexit), \ + CLBR_NONE, \ + jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_irq_enable_sysexit)) ++ ++#define GET_CR0_INTO_RDI \ ++ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0); \ ++ mov %rax,%rdi ++ ++#define SET_RDI_INTO_CR0 \ ++ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0) ++ ++#define GET_CR3_INTO_RDI \ ++ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_read_cr3); \ ++ mov %rax,%rdi ++ ++#define SET_RDI_INTO_CR3 \ ++ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_write_cr3) ++ + #endif /* CONFIG_X86_32 */ + + #endif /* __ASSEMBLY__ */ +diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h +index 8e8b9a4..f07d725 100644 +--- a/arch/x86/include/asm/paravirt_types.h ++++ b/arch/x86/include/asm/paravirt_types.h +@@ -84,20 +84,20 @@ struct pv_init_ops { + */ + unsigned (*patch)(u8 type, u16 clobber, void *insnbuf, + unsigned long addr, unsigned len); +-}; ++} __no_const; + + + struct pv_lazy_ops { + /* Set deferred update mode, used for batching operations. */ + void (*enter)(void); + void (*leave)(void); +-}; ++} __no_const; + + struct pv_time_ops { + unsigned long long (*sched_clock)(void); + unsigned long long (*steal_clock)(int cpu); + unsigned long (*get_tsc_khz)(void); +-}; ++} __no_const; + + struct pv_cpu_ops { + /* hooks for various privileged instructions */ +@@ -193,7 +193,7 @@ struct pv_cpu_ops { + + void (*start_context_switch)(struct task_struct *prev); + void (*end_context_switch)(struct task_struct *next); +-}; ++} __no_const; + + struct pv_irq_ops { + /* +@@ -224,7 +224,7 @@ struct pv_apic_ops { + unsigned long start_eip, + unsigned long start_esp); + #endif +-}; ++} __no_const; + + struct pv_mmu_ops { + unsigned long (*read_cr2)(void); +@@ -313,6 +313,7 @@ struct pv_mmu_ops { + struct paravirt_callee_save make_pud; + + void (*set_pgd)(pgd_t *pudp, pgd_t pgdval); ++ void (*set_pgd_batched)(pgd_t *pudp, pgd_t pgdval); + #endif /* PAGETABLE_LEVELS == 4 */ + #endif /* PAGETABLE_LEVELS >= 3 */ + +@@ -324,6 +325,12 @@ struct pv_mmu_ops { + an mfn. We can tell which is which from the index. */ + void (*set_fixmap)(unsigned /* enum fixed_addresses */ idx, + phys_addr_t phys, pgprot_t flags); ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ unsigned long (*pax_open_kernel)(void); ++ unsigned long (*pax_close_kernel)(void); ++#endif ++ + }; + + struct arch_spinlock; +@@ -334,7 +341,7 @@ struct pv_lock_ops { + void (*spin_lock_flags)(struct arch_spinlock *lock, unsigned long flags); + int (*spin_trylock)(struct arch_spinlock *lock); + void (*spin_unlock)(struct arch_spinlock *lock); +-}; ++} __no_const; + + /* This contains all the paravirt structures: we get a convenient + * number for each function using the offset which we use to indicate +diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h +index b4389a4..7024269 100644 +--- a/arch/x86/include/asm/pgalloc.h ++++ b/arch/x86/include/asm/pgalloc.h +@@ -63,6 +63,13 @@ static inline void pmd_populate_kernel(struct mm_struct *mm, + pmd_t *pmd, pte_t *pte) + { + paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT); ++ set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE)); ++} ++ ++static inline void pmd_populate_user(struct mm_struct *mm, ++ pmd_t *pmd, pte_t *pte) ++{ ++ paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT); + set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE)); + } + +@@ -99,12 +106,22 @@ static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, + + #ifdef CONFIG_X86_PAE + extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd); ++static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd) ++{ ++ pud_populate(mm, pudp, pmd); ++} + #else /* !CONFIG_X86_PAE */ + static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) + { + paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT); + set_pud(pud, __pud(_PAGE_TABLE | __pa(pmd))); + } ++ ++static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) ++{ ++ paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT); ++ set_pud(pud, __pud(_KERNPG_TABLE | __pa(pmd))); ++} + #endif /* CONFIG_X86_PAE */ + + #if PAGETABLE_LEVELS > 3 +@@ -114,6 +131,12 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud) + set_pgd(pgd, __pgd(_PAGE_TABLE | __pa(pud))); + } + ++static inline void pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pud_t *pud) ++{ ++ paravirt_alloc_pud(mm, __pa(pud) >> PAGE_SHIFT); ++ set_pgd(pgd, __pgd(_KERNPG_TABLE | __pa(pud))); ++} ++ + static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) + { + return (pud_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT); +diff --git a/arch/x86/include/asm/pgtable-2level.h b/arch/x86/include/asm/pgtable-2level.h +index 98391db..8f6984e 100644 +--- a/arch/x86/include/asm/pgtable-2level.h ++++ b/arch/x86/include/asm/pgtable-2level.h +@@ -18,7 +18,9 @@ static inline void native_set_pte(pte_t *ptep , pte_t pte) + + static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) + { ++ pax_open_kernel(); + *pmdp = pmd; ++ pax_close_kernel(); + } + + static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte) +diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h +index cb00ccc..17e9054 100644 +--- a/arch/x86/include/asm/pgtable-3level.h ++++ b/arch/x86/include/asm/pgtable-3level.h +@@ -92,12 +92,16 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte) + + static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) + { ++ pax_open_kernel(); + set_64bit((unsigned long long *)(pmdp), native_pmd_val(pmd)); ++ pax_close_kernel(); + } + + static inline void native_set_pud(pud_t *pudp, pud_t pud) + { ++ pax_open_kernel(); + set_64bit((unsigned long long *)(pudp), native_pud_val(pud)); ++ pax_close_kernel(); + } + + /* +diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h +index 49afb3f..91a8c63 100644 +--- a/arch/x86/include/asm/pgtable.h ++++ b/arch/x86/include/asm/pgtable.h +@@ -44,6 +44,7 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page); + + #ifndef __PAGETABLE_PUD_FOLDED + #define set_pgd(pgdp, pgd) native_set_pgd(pgdp, pgd) ++#define set_pgd_batched(pgdp, pgd) native_set_pgd_batched(pgdp, pgd) + #define pgd_clear(pgd) native_pgd_clear(pgd) + #endif + +@@ -81,12 +82,51 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page); + + #define arch_end_context_switch(prev) do {} while(0) + ++#define pax_open_kernel() native_pax_open_kernel() ++#define pax_close_kernel() native_pax_close_kernel() + #endif /* CONFIG_PARAVIRT */ + ++#define __HAVE_ARCH_PAX_OPEN_KERNEL ++#define __HAVE_ARCH_PAX_CLOSE_KERNEL ++ ++#ifdef CONFIG_PAX_KERNEXEC ++static inline unsigned long native_pax_open_kernel(void) ++{ ++ unsigned long cr0; ++ ++ preempt_disable(); ++ barrier(); ++ cr0 = read_cr0() ^ X86_CR0_WP; ++ BUG_ON(unlikely(cr0 & X86_CR0_WP)); ++ write_cr0(cr0); ++ return cr0 ^ X86_CR0_WP; ++} ++ ++static inline unsigned long native_pax_close_kernel(void) ++{ ++ unsigned long cr0; ++ ++ cr0 = read_cr0() ^ X86_CR0_WP; ++ BUG_ON(unlikely(!(cr0 & X86_CR0_WP))); ++ write_cr0(cr0); ++ barrier(); ++ preempt_enable_no_resched(); ++ return cr0 ^ X86_CR0_WP; ++} ++#else ++static inline unsigned long native_pax_open_kernel(void) { return 0; } ++static inline unsigned long native_pax_close_kernel(void) { return 0; } ++#endif ++ + /* + * The following only work if pte_present() is true. + * Undefined behaviour if not.. + */ ++static inline int pte_user(pte_t pte) ++{ ++ return pte_val(pte) & _PAGE_USER; ++} ++ + static inline int pte_dirty(pte_t pte) + { + return pte_flags(pte) & _PAGE_DIRTY; +@@ -196,9 +236,29 @@ static inline pte_t pte_wrprotect(pte_t pte) + return pte_clear_flags(pte, _PAGE_RW); + } + ++static inline pte_t pte_mkread(pte_t pte) ++{ ++ return __pte(pte_val(pte) | _PAGE_USER); ++} ++ + static inline pte_t pte_mkexec(pte_t pte) + { +- return pte_clear_flags(pte, _PAGE_NX); ++#ifdef CONFIG_X86_PAE ++ if (__supported_pte_mask & _PAGE_NX) ++ return pte_clear_flags(pte, _PAGE_NX); ++ else ++#endif ++ return pte_set_flags(pte, _PAGE_USER); ++} ++ ++static inline pte_t pte_exprotect(pte_t pte) ++{ ++#ifdef CONFIG_X86_PAE ++ if (__supported_pte_mask & _PAGE_NX) ++ return pte_set_flags(pte, _PAGE_NX); ++ else ++#endif ++ return pte_clear_flags(pte, _PAGE_USER); + } + + static inline pte_t pte_mkdirty(pte_t pte) +@@ -390,6 +450,15 @@ pte_t *populate_extra_pte(unsigned long vaddr); + #endif + + #ifndef __ASSEMBLY__ ++ ++#ifdef CONFIG_PAX_PER_CPU_PGD ++extern pgd_t cpu_pgd[NR_CPUS][PTRS_PER_PGD]; ++static inline pgd_t *get_cpu_pgd(unsigned int cpu) ++{ ++ return cpu_pgd[cpu]; ++} ++#endif ++ + #include <linux/mm_types.h> + + static inline int pte_none(pte_t pte) +@@ -560,7 +629,7 @@ static inline pud_t *pud_offset(pgd_t *pgd, unsigned long address) + + static inline int pgd_bad(pgd_t pgd) + { +- return (pgd_flags(pgd) & ~_PAGE_USER) != _KERNPG_TABLE; ++ return (pgd_flags(pgd) & ~(_PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE; + } + + static inline int pgd_none(pgd_t pgd) +@@ -583,7 +652,12 @@ static inline int pgd_none(pgd_t pgd) + * pgd_offset() returns a (pgd_t *) + * pgd_index() is used get the offset into the pgd page's array of pgd_t's; + */ +-#define pgd_offset(mm, address) ((mm)->pgd + pgd_index((address))) ++#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) ++ ++#ifdef CONFIG_PAX_PER_CPU_PGD ++#define pgd_offset_cpu(cpu, address) (get_cpu_pgd(cpu) + pgd_index(address)) ++#endif ++ + /* + * a shortcut which implies the use of the kernel's pgd, instead + * of a process's +@@ -594,6 +668,20 @@ static inline int pgd_none(pgd_t pgd) + #define KERNEL_PGD_BOUNDARY pgd_index(PAGE_OFFSET) + #define KERNEL_PGD_PTRS (PTRS_PER_PGD - KERNEL_PGD_BOUNDARY) + ++#ifdef CONFIG_X86_32 ++#define USER_PGD_PTRS KERNEL_PGD_BOUNDARY ++#else ++#define TASK_SIZE_MAX_SHIFT CONFIG_TASK_SIZE_MAX_SHIFT ++#define USER_PGD_PTRS (_AC(1,UL) << (TASK_SIZE_MAX_SHIFT - PGDIR_SHIFT)) ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++#define PAX_USER_SHADOW_BASE (_AC(1,UL) << TASK_SIZE_MAX_SHIFT) ++#else ++#define PAX_USER_SHADOW_BASE (_AC(0,UL)) ++#endif ++ ++#endif ++ + #ifndef __ASSEMBLY__ + + extern int direct_gbpages; +@@ -758,11 +846,23 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm, + * dst and src can be on the same page, but the range must not overlap, + * and must not cross a page boundary. + */ +-static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count) ++static inline void clone_pgd_range(pgd_t *dst, const pgd_t *src, int count) + { +- memcpy(dst, src, count * sizeof(pgd_t)); ++ pax_open_kernel(); ++ while (count--) ++ *dst++ = *src++; ++ pax_close_kernel(); + } + ++#ifdef CONFIG_PAX_PER_CPU_PGD ++extern void __clone_user_pgds(pgd_t *dst, const pgd_t *src); ++#endif ++ ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++extern void __shadow_user_pgds(pgd_t *dst, const pgd_t *src); ++#else ++static inline void __shadow_user_pgds(pgd_t *dst, const pgd_t *src) {} ++#endif + + #include <asm-generic/pgtable.h> + #endif /* __ASSEMBLY__ */ +diff --git a/arch/x86/include/asm/pgtable_32.h b/arch/x86/include/asm/pgtable_32.h +index 0c92113..34a77c6 100644 +--- a/arch/x86/include/asm/pgtable_32.h ++++ b/arch/x86/include/asm/pgtable_32.h +@@ -25,9 +25,6 @@ + struct mm_struct; + struct vm_area_struct; + +-extern pgd_t swapper_pg_dir[1024]; +-extern pgd_t initial_page_table[1024]; +- + static inline void pgtable_cache_init(void) { } + static inline void check_pgt_cache(void) { } + void paging_init(void); +@@ -48,6 +45,12 @@ extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t); + # include <asm/pgtable-2level.h> + #endif + ++extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; ++extern pgd_t initial_page_table[PTRS_PER_PGD]; ++#ifdef CONFIG_X86_PAE ++extern pmd_t swapper_pm_dir[PTRS_PER_PGD][PTRS_PER_PMD]; ++#endif ++ + #if defined(CONFIG_HIGHPTE) + #define pte_offset_map(dir, address) \ + ((pte_t *)kmap_atomic(pmd_page(*(dir))) + \ +@@ -62,7 +65,9 @@ extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t); + /* Clear a kernel PTE and flush it from the TLB */ + #define kpte_clear_flush(ptep, vaddr) \ + do { \ ++ pax_open_kernel(); \ + pte_clear(&init_mm, (vaddr), (ptep)); \ ++ pax_close_kernel(); \ + __flush_tlb_one((vaddr)); \ + } while (0) + +@@ -74,6 +79,9 @@ do { \ + + #endif /* !__ASSEMBLY__ */ + ++#define HAVE_ARCH_UNMAPPED_AREA ++#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN ++ + /* + * kern_addr_valid() is (1) for FLATMEM and (0) for + * SPARSEMEM and DISCONTIGMEM +diff --git a/arch/x86/include/asm/pgtable_32_types.h b/arch/x86/include/asm/pgtable_32_types.h +index ed5903b..c7fe163 100644 +--- a/arch/x86/include/asm/pgtable_32_types.h ++++ b/arch/x86/include/asm/pgtable_32_types.h +@@ -8,7 +8,7 @@ + */ + #ifdef CONFIG_X86_PAE + # include <asm/pgtable-3level_types.h> +-# define PMD_SIZE (1UL << PMD_SHIFT) ++# define PMD_SIZE (_AC(1, UL) << PMD_SHIFT) + # define PMD_MASK (~(PMD_SIZE - 1)) + #else + # include <asm/pgtable-2level_types.h> +@@ -46,6 +46,19 @@ extern bool __vmalloc_start_set; /* set once high_memory is set */ + # define VMALLOC_END (FIXADDR_START - 2 * PAGE_SIZE) + #endif + ++#ifdef CONFIG_PAX_KERNEXEC ++#ifndef __ASSEMBLY__ ++extern unsigned char MODULES_EXEC_VADDR[]; ++extern unsigned char MODULES_EXEC_END[]; ++#endif ++#include <asm/boot.h> ++#define ktla_ktva(addr) (addr + LOAD_PHYSICAL_ADDR + PAGE_OFFSET) ++#define ktva_ktla(addr) (addr - LOAD_PHYSICAL_ADDR - PAGE_OFFSET) ++#else ++#define ktla_ktva(addr) (addr) ++#define ktva_ktla(addr) (addr) ++#endif ++ + #define MODULES_VADDR VMALLOC_START + #define MODULES_END VMALLOC_END + #define MODULES_LEN (MODULES_VADDR - MODULES_END) +diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h +index 975f709..9f779c9 100644 +--- a/arch/x86/include/asm/pgtable_64.h ++++ b/arch/x86/include/asm/pgtable_64.h +@@ -16,10 +16,14 @@ + + extern pud_t level3_kernel_pgt[512]; + extern pud_t level3_ident_pgt[512]; ++extern pud_t level3_vmalloc_start_pgt[512]; ++extern pud_t level3_vmalloc_end_pgt[512]; ++extern pud_t level3_vmemmap_pgt[512]; ++extern pud_t level2_vmemmap_pgt[512]; + extern pmd_t level2_kernel_pgt[512]; + extern pmd_t level2_fixmap_pgt[512]; +-extern pmd_t level2_ident_pgt[512]; +-extern pgd_t init_level4_pgt[]; ++extern pmd_t level2_ident_pgt[512*2]; ++extern pgd_t init_level4_pgt[512]; + + #define swapper_pg_dir init_level4_pgt + +@@ -61,7 +65,9 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte) + + static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) + { ++ pax_open_kernel(); + *pmdp = pmd; ++ pax_close_kernel(); + } + + static inline void native_pmd_clear(pmd_t *pmd) +@@ -97,7 +103,9 @@ static inline pmd_t native_pmdp_get_and_clear(pmd_t *xp) + + static inline void native_set_pud(pud_t *pudp, pud_t pud) + { ++ pax_open_kernel(); + *pudp = pud; ++ pax_close_kernel(); + } + + static inline void native_pud_clear(pud_t *pud) +@@ -107,6 +115,13 @@ static inline void native_pud_clear(pud_t *pud) + + static inline void native_set_pgd(pgd_t *pgdp, pgd_t pgd) + { ++ pax_open_kernel(); ++ *pgdp = pgd; ++ pax_close_kernel(); ++} ++ ++static inline void native_set_pgd_batched(pgd_t *pgdp, pgd_t pgd) ++{ + *pgdp = pgd; + } + +diff --git a/arch/x86/include/asm/pgtable_64_types.h b/arch/x86/include/asm/pgtable_64_types.h +index 766ea16..5b96cb3 100644 +--- a/arch/x86/include/asm/pgtable_64_types.h ++++ b/arch/x86/include/asm/pgtable_64_types.h +@@ -59,5 +59,10 @@ typedef struct { pteval_t pte; } pte_t; + #define MODULES_VADDR _AC(0xffffffffa0000000, UL) + #define MODULES_END _AC(0xffffffffff000000, UL) + #define MODULES_LEN (MODULES_END - MODULES_VADDR) ++#define MODULES_EXEC_VADDR MODULES_VADDR ++#define MODULES_EXEC_END MODULES_END ++ ++#define ktla_ktva(addr) (addr) ++#define ktva_ktla(addr) (addr) + + #endif /* _ASM_X86_PGTABLE_64_DEFS_H */ +diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h +index 013286a..8b42f4f 100644 +--- a/arch/x86/include/asm/pgtable_types.h ++++ b/arch/x86/include/asm/pgtable_types.h +@@ -16,13 +16,12 @@ + #define _PAGE_BIT_PSE 7 /* 4 MB (or 2MB) page */ + #define _PAGE_BIT_PAT 7 /* on 4KB pages */ + #define _PAGE_BIT_GLOBAL 8 /* Global TLB entry PPro+ */ +-#define _PAGE_BIT_UNUSED1 9 /* available for programmer */ ++#define _PAGE_BIT_SPECIAL 9 /* special mappings, no associated struct page */ + #define _PAGE_BIT_IOMAP 10 /* flag used to indicate IO mapping */ + #define _PAGE_BIT_HIDDEN 11 /* hidden by kmemcheck */ + #define _PAGE_BIT_PAT_LARGE 12 /* On 2MB or 1GB pages */ +-#define _PAGE_BIT_SPECIAL _PAGE_BIT_UNUSED1 +-#define _PAGE_BIT_CPA_TEST _PAGE_BIT_UNUSED1 +-#define _PAGE_BIT_SPLITTING _PAGE_BIT_UNUSED1 /* only valid on a PSE pmd */ ++#define _PAGE_BIT_CPA_TEST _PAGE_BIT_SPECIAL ++#define _PAGE_BIT_SPLITTING _PAGE_BIT_SPECIAL /* only valid on a PSE pmd */ + #define _PAGE_BIT_NX 63 /* No execute: only valid after cpuid check */ + + /* If _PAGE_BIT_PRESENT is clear, we use these: */ +@@ -40,7 +39,6 @@ + #define _PAGE_DIRTY (_AT(pteval_t, 1) << _PAGE_BIT_DIRTY) + #define _PAGE_PSE (_AT(pteval_t, 1) << _PAGE_BIT_PSE) + #define _PAGE_GLOBAL (_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL) +-#define _PAGE_UNUSED1 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1) + #define _PAGE_IOMAP (_AT(pteval_t, 1) << _PAGE_BIT_IOMAP) + #define _PAGE_PAT (_AT(pteval_t, 1) << _PAGE_BIT_PAT) + #define _PAGE_PAT_LARGE (_AT(pteval_t, 1) << _PAGE_BIT_PAT_LARGE) +@@ -57,8 +55,10 @@ + + #if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) + #define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_NX) +-#else ++#elif defined(CONFIG_KMEMCHECK) + #define _PAGE_NX (_AT(pteval_t, 0)) ++#else ++#define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_HIDDEN) + #endif + + #define _PAGE_FILE (_AT(pteval_t, 1) << _PAGE_BIT_FILE) +@@ -96,6 +96,9 @@ + #define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \ + _PAGE_ACCESSED) + ++#define PAGE_READONLY_NOEXEC PAGE_READONLY ++#define PAGE_SHARED_NOEXEC PAGE_SHARED ++ + #define __PAGE_KERNEL_EXEC \ + (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL) + #define __PAGE_KERNEL (__PAGE_KERNEL_EXEC | _PAGE_NX) +@@ -106,7 +109,7 @@ + #define __PAGE_KERNEL_WC (__PAGE_KERNEL | _PAGE_CACHE_WC) + #define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT) + #define __PAGE_KERNEL_UC_MINUS (__PAGE_KERNEL | _PAGE_PCD) +-#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RX | _PAGE_USER) ++#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RO | _PAGE_USER) + #define __PAGE_KERNEL_VVAR (__PAGE_KERNEL_RO | _PAGE_USER) + #define __PAGE_KERNEL_VVAR_NOCACHE (__PAGE_KERNEL_VVAR | _PAGE_PCD | _PAGE_PWT) + #define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE) +@@ -168,8 +171,8 @@ + * bits are combined, this will alow user to access the high address mapped + * VDSO in the presence of CONFIG_COMPAT_VDSO + */ +-#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */ +-#define PDE_IDENT_ATTR 0x067 /* PRESENT+RW+USER+DIRTY+ACCESSED */ ++#define PTE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */ ++#define PDE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */ + #define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */ + #endif + +@@ -207,7 +210,17 @@ static inline pgdval_t pgd_flags(pgd_t pgd) + { + return native_pgd_val(pgd) & PTE_FLAGS_MASK; + } ++#endif + ++#if PAGETABLE_LEVELS == 3 ++#include <asm-generic/pgtable-nopud.h> ++#endif ++ ++#if PAGETABLE_LEVELS == 2 ++#include <asm-generic/pgtable-nopmd.h> ++#endif ++ ++#ifndef __ASSEMBLY__ + #if PAGETABLE_LEVELS > 3 + typedef struct { pudval_t pud; } pud_t; + +@@ -221,8 +234,6 @@ static inline pudval_t native_pud_val(pud_t pud) + return pud.pud; + } + #else +-#include <asm-generic/pgtable-nopud.h> +- + static inline pudval_t native_pud_val(pud_t pud) + { + return native_pgd_val(pud.pgd); +@@ -242,8 +253,6 @@ static inline pmdval_t native_pmd_val(pmd_t pmd) + return pmd.pmd; + } + #else +-#include <asm-generic/pgtable-nopmd.h> +- + static inline pmdval_t native_pmd_val(pmd_t pmd) + { + return native_pgd_val(pmd.pud.pgd); +@@ -283,7 +292,6 @@ typedef struct page *pgtable_t; + + extern pteval_t __supported_pte_mask; + extern void set_nx(void); +-extern int nx_enabled; + + #define pgprot_writecombine pgprot_writecombine + extern pgprot_t pgprot_writecombine(pgprot_t prot); +diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h +index 4fa7dcc..764e33a 100644 +--- a/arch/x86/include/asm/processor.h ++++ b/arch/x86/include/asm/processor.h +@@ -276,7 +276,7 @@ struct tss_struct { + + } ____cacheline_aligned; + +-DECLARE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss); ++extern struct tss_struct init_tss[NR_CPUS]; + + /* + * Save the original ist values for checking stack pointers during debugging +@@ -807,11 +807,18 @@ static inline void spin_lock_prefetch(const void *x) + */ + #define TASK_SIZE PAGE_OFFSET + #define TASK_SIZE_MAX TASK_SIZE ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++#define SEGMEXEC_TASK_SIZE (TASK_SIZE / 2) ++#define STACK_TOP ((current->mm->pax_flags & MF_PAX_SEGMEXEC)?SEGMEXEC_TASK_SIZE:TASK_SIZE) ++#else + #define STACK_TOP TASK_SIZE +-#define STACK_TOP_MAX STACK_TOP ++#endif ++ ++#define STACK_TOP_MAX TASK_SIZE + + #define INIT_THREAD { \ +- .sp0 = sizeof(init_stack) + (long)&init_stack, \ ++ .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \ + .vm86_info = NULL, \ + .sysenter_cs = __KERNEL_CS, \ + .io_bitmap_ptr = NULL, \ +@@ -825,7 +832,7 @@ static inline void spin_lock_prefetch(const void *x) + */ + #define INIT_TSS { \ + .x86_tss = { \ +- .sp0 = sizeof(init_stack) + (long)&init_stack, \ ++ .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \ + .ss0 = __KERNEL_DS, \ + .ss1 = __KERNEL_CS, \ + .io_bitmap_base = INVALID_IO_BITMAP_OFFSET, \ +@@ -836,11 +843,7 @@ static inline void spin_lock_prefetch(const void *x) + extern unsigned long thread_saved_pc(struct task_struct *tsk); + + #define THREAD_SIZE_LONGS (THREAD_SIZE/sizeof(unsigned long)) +-#define KSTK_TOP(info) \ +-({ \ +- unsigned long *__ptr = (unsigned long *)(info); \ +- (unsigned long)(&__ptr[THREAD_SIZE_LONGS]); \ +-}) ++#define KSTK_TOP(info) ((container_of(info, struct task_struct, tinfo))->thread.sp0) + + /* + * The below -8 is to reserve 8 bytes on top of the ring0 stack. +@@ -855,7 +858,7 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk); + #define task_pt_regs(task) \ + ({ \ + struct pt_regs *__regs__; \ +- __regs__ = (struct pt_regs *)(KSTK_TOP(task_stack_page(task))-8); \ ++ __regs__ = (struct pt_regs *)((task)->thread.sp0); \ + __regs__ - 1; \ + }) + +@@ -865,13 +868,13 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk); + /* + * User space process size. 47bits minus one guard page. + */ +-#define TASK_SIZE_MAX ((1UL << 47) - PAGE_SIZE) ++#define TASK_SIZE_MAX ((1UL << TASK_SIZE_MAX_SHIFT) - PAGE_SIZE) + + /* This decides where the kernel will search for a free chunk of vm + * space during mmap's. + */ + #define IA32_PAGE_OFFSET ((current->personality & ADDR_LIMIT_3GB) ? \ +- 0xc0000000 : 0xFFFFe000) ++ 0xc0000000 : 0xFFFFf000) + + #define TASK_SIZE (test_thread_flag(TIF_ADDR32) ? \ + IA32_PAGE_OFFSET : TASK_SIZE_MAX) +@@ -882,11 +885,11 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk); + #define STACK_TOP_MAX TASK_SIZE_MAX + + #define INIT_THREAD { \ +- .sp0 = (unsigned long)&init_stack + sizeof(init_stack) \ ++ .sp0 = (unsigned long)&init_stack + sizeof(init_stack) - 16 \ + } + + #define INIT_TSS { \ +- .x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \ ++ .x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) - 16 \ + } + + /* +@@ -914,6 +917,10 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_ip, + */ + #define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3)) + ++#ifdef CONFIG_PAX_SEGMEXEC ++#define SEGMEXEC_TASK_UNMAPPED_BASE (PAGE_ALIGN(SEGMEXEC_TASK_SIZE / 3)) ++#endif ++ + #define KSTK_EIP(task) (task_pt_regs(task)->ip) + + /* Get/set a process' ability to use the timestamp counter instruction */ +@@ -976,12 +983,12 @@ extern bool cpu_has_amd_erratum(const int *); + + void cpu_idle_wait(void); + +-extern unsigned long arch_align_stack(unsigned long sp); ++#define arch_align_stack(x) ((x) & ~0xfUL) + extern void free_init_pages(char *what, unsigned long begin, unsigned long end); + + void default_idle(void); + bool set_pm_idle_to_default(void); + +-void stop_this_cpu(void *dummy); ++void stop_this_cpu(void *dummy) __noreturn; + + #endif /* _ASM_X86_PROCESSOR_H */ +diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h +index dcfde52..dbfea06 100644 +--- a/arch/x86/include/asm/ptrace.h ++++ b/arch/x86/include/asm/ptrace.h +@@ -155,28 +155,29 @@ static inline unsigned long regs_return_value(struct pt_regs *regs) + } + + /* +- * user_mode_vm(regs) determines whether a register set came from user mode. ++ * user_mode(regs) determines whether a register set came from user mode. + * This is true if V8086 mode was enabled OR if the register set was from + * protected mode with RPL-3 CS value. This tricky test checks that with + * one comparison. Many places in the kernel can bypass this full check +- * if they have already ruled out V8086 mode, so user_mode(regs) can be used. ++ * if they have already ruled out V8086 mode, so user_mode_novm(regs) can ++ * be used. + */ +-static inline int user_mode(struct pt_regs *regs) ++static inline int user_mode_novm(struct pt_regs *regs) + { + #ifdef CONFIG_X86_32 + return (regs->cs & SEGMENT_RPL_MASK) == USER_RPL; + #else +- return !!(regs->cs & 3); ++ return !!(regs->cs & SEGMENT_RPL_MASK); + #endif + } + +-static inline int user_mode_vm(struct pt_regs *regs) ++static inline int user_mode(struct pt_regs *regs) + { + #ifdef CONFIG_X86_32 + return ((regs->cs & SEGMENT_RPL_MASK) | (regs->flags & X86_VM_MASK)) >= + USER_RPL; + #else +- return user_mode(regs); ++ return user_mode_novm(regs); + #endif + } + +@@ -192,15 +193,16 @@ static inline int v8086_mode(struct pt_regs *regs) + #ifdef CONFIG_X86_64 + static inline bool user_64bit_mode(struct pt_regs *regs) + { ++ unsigned long cs = regs->cs & 0xffff; + #ifndef CONFIG_PARAVIRT + /* + * On non-paravirt systems, this is the only long mode CPL 3 + * selector. We do not allow long mode selectors in the LDT. + */ +- return regs->cs == __USER_CS; ++ return cs == __USER_CS; + #else + /* Headers are too twisted for this to go in paravirt.h. */ +- return regs->cs == __USER_CS || regs->cs == pv_info.extra_user_64bit_cs; ++ return cs == __USER_CS || cs == pv_info.extra_user_64bit_cs; + #endif + } + #endif +diff --git a/arch/x86/include/asm/reboot.h b/arch/x86/include/asm/reboot.h +index 92f29706..a79cbbb 100644 +--- a/arch/x86/include/asm/reboot.h ++++ b/arch/x86/include/asm/reboot.h +@@ -6,19 +6,19 @@ + struct pt_regs; + + struct machine_ops { +- void (*restart)(char *cmd); +- void (*halt)(void); +- void (*power_off)(void); ++ void (* __noreturn restart)(char *cmd); ++ void (* __noreturn halt)(void); ++ void (* __noreturn power_off)(void); + void (*shutdown)(void); + void (*crash_shutdown)(struct pt_regs *); +- void (*emergency_restart)(void); +-}; ++ void (* __noreturn emergency_restart)(void); ++} __no_const; + + extern struct machine_ops machine_ops; + + void native_machine_crash_shutdown(struct pt_regs *regs); + void native_machine_shutdown(void); +-void machine_real_restart(unsigned int type); ++void machine_real_restart(unsigned int type) __noreturn; + /* These must match dispatch_table in reboot_32.S */ + #define MRR_BIOS 0 + #define MRR_APM 1 +diff --git a/arch/x86/include/asm/rwsem.h b/arch/x86/include/asm/rwsem.h +index 2dbe4a7..ce1db00 100644 +--- a/arch/x86/include/asm/rwsem.h ++++ b/arch/x86/include/asm/rwsem.h +@@ -64,6 +64,14 @@ static inline void __down_read(struct rw_semaphore *sem) + { + asm volatile("# beginning down_read\n\t" + LOCK_PREFIX _ASM_INC "(%1)\n\t" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX _ASM_DEC "(%1)\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ + /* adds 0x00000001 */ + " jns 1f\n" + " call call_rwsem_down_read_failed\n" +@@ -85,6 +93,14 @@ static inline int __down_read_trylock(struct rw_semaphore *sem) + "1:\n\t" + " mov %1,%2\n\t" + " add %3,%2\n\t" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ "sub %3,%2\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ + " jle 2f\n\t" + LOCK_PREFIX " cmpxchg %2,%0\n\t" + " jnz 1b\n\t" +@@ -104,6 +120,14 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass) + long tmp; + asm volatile("# beginning down_write\n\t" + LOCK_PREFIX " xadd %1,(%2)\n\t" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ "mov %1,(%2)\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ + /* adds 0xffff0001, returns the old value */ + " test %1,%1\n\t" + /* was the count 0 before? */ +@@ -141,6 +165,14 @@ static inline void __up_read(struct rw_semaphore *sem) + long tmp; + asm volatile("# beginning __up_read\n\t" + LOCK_PREFIX " xadd %1,(%2)\n\t" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ "mov %1,(%2)\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ + /* subtracts 1, returns the old value */ + " jns 1f\n\t" + " call call_rwsem_wake\n" /* expects old value in %edx */ +@@ -159,6 +191,14 @@ static inline void __up_write(struct rw_semaphore *sem) + long tmp; + asm volatile("# beginning __up_write\n\t" + LOCK_PREFIX " xadd %1,(%2)\n\t" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ "mov %1,(%2)\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ + /* subtracts 0xffff0001, returns the old value */ + " jns 1f\n\t" + " call call_rwsem_wake\n" /* expects old value in %edx */ +@@ -176,6 +216,14 @@ static inline void __downgrade_write(struct rw_semaphore *sem) + { + asm volatile("# beginning __downgrade_write\n\t" + LOCK_PREFIX _ASM_ADD "%2,(%1)\n\t" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX _ASM_SUB "%2,(%1)\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ + /* + * transitions 0xZZZZ0001 -> 0xYYYY0001 (i386) + * 0xZZZZZZZZ00000001 -> 0xYYYYYYYY00000001 (x86_64) +@@ -194,7 +242,15 @@ static inline void __downgrade_write(struct rw_semaphore *sem) + */ + static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem) + { +- asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0" ++ asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX _ASM_SUB "%1,%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ + : "+m" (sem->count) + : "er" (delta)); + } +@@ -204,7 +260,7 @@ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem) + */ + static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem) + { +- return delta + xadd(&sem->count, delta); ++ return delta + xadd_check_overflow(&sem->count, delta); + } + + #endif /* __KERNEL__ */ +diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h +index 1654662..5af4157 100644 +--- a/arch/x86/include/asm/segment.h ++++ b/arch/x86/include/asm/segment.h +@@ -64,10 +64,15 @@ + * 26 - ESPFIX small SS + * 27 - per-cpu [ offset to per-cpu data area ] + * 28 - stack_canary-20 [ for stack protector ] +- * 29 - unused +- * 30 - unused ++ * 29 - PCI BIOS CS ++ * 30 - PCI BIOS DS + * 31 - TSS for double fault handler + */ ++#define GDT_ENTRY_KERNEXEC_EFI_CS (1) ++#define GDT_ENTRY_KERNEXEC_EFI_DS (2) ++#define __KERNEXEC_EFI_CS (GDT_ENTRY_KERNEXEC_EFI_CS*8) ++#define __KERNEXEC_EFI_DS (GDT_ENTRY_KERNEXEC_EFI_DS*8) ++ + #define GDT_ENTRY_TLS_MIN 6 + #define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1) + +@@ -79,6 +84,8 @@ + + #define GDT_ENTRY_KERNEL_CS (GDT_ENTRY_KERNEL_BASE+0) + ++#define GDT_ENTRY_KERNEXEC_KERNEL_CS (4) ++ + #define GDT_ENTRY_KERNEL_DS (GDT_ENTRY_KERNEL_BASE+1) + + #define GDT_ENTRY_TSS (GDT_ENTRY_KERNEL_BASE+4) +@@ -104,6 +111,12 @@ + #define __KERNEL_STACK_CANARY 0 + #endif + ++#define GDT_ENTRY_PCIBIOS_CS (GDT_ENTRY_KERNEL_BASE+17) ++#define __PCIBIOS_CS (GDT_ENTRY_PCIBIOS_CS * 8) ++ ++#define GDT_ENTRY_PCIBIOS_DS (GDT_ENTRY_KERNEL_BASE+18) ++#define __PCIBIOS_DS (GDT_ENTRY_PCIBIOS_DS * 8) ++ + #define GDT_ENTRY_DOUBLEFAULT_TSS 31 + + /* +@@ -141,7 +154,7 @@ + */ + + /* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */ +-#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8) ++#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xFFFCU) == PNP_CS32 || ((x) & 0xFFFCU) == PNP_CS16) + + + #else +@@ -165,6 +178,8 @@ + #define __USER32_CS (GDT_ENTRY_DEFAULT_USER32_CS*8+3) + #define __USER32_DS __USER_DS + ++#define GDT_ENTRY_KERNEXEC_KERNEL_CS 7 ++ + #define GDT_ENTRY_TSS 8 /* needs two entries */ + #define GDT_ENTRY_LDT 10 /* needs two entries */ + #define GDT_ENTRY_TLS_MIN 12 +@@ -185,6 +200,7 @@ + #endif + + #define __KERNEL_CS (GDT_ENTRY_KERNEL_CS*8) ++#define __KERNEXEC_KERNEL_CS (GDT_ENTRY_KERNEXEC_KERNEL_CS*8) + #define __KERNEL_DS (GDT_ENTRY_KERNEL_DS*8) + #define __USER_DS (GDT_ENTRY_DEFAULT_USER_DS*8+3) + #define __USER_CS (GDT_ENTRY_DEFAULT_USER_CS*8+3) +@@ -263,7 +279,7 @@ static inline unsigned long get_limit(unsigned long segment) + { + unsigned long __limit; + asm("lsll %1,%0" : "=r" (__limit) : "r" (segment)); +- return __limit + 1; ++ return __limit; + } + + #endif /* !__ASSEMBLY__ */ +diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h +index 0434c40..1714bf0 100644 +--- a/arch/x86/include/asm/smp.h ++++ b/arch/x86/include/asm/smp.h +@@ -36,7 +36,7 @@ DECLARE_PER_CPU(cpumask_var_t, cpu_core_map); + /* cpus sharing the last level cache: */ + DECLARE_PER_CPU(cpumask_var_t, cpu_llc_shared_map); + DECLARE_PER_CPU(u16, cpu_llc_id); +-DECLARE_PER_CPU(int, cpu_number); ++DECLARE_PER_CPU(unsigned int, cpu_number); + + static inline struct cpumask *cpu_sibling_mask(int cpu) + { +@@ -77,7 +77,7 @@ struct smp_ops { + + void (*send_call_func_ipi)(const struct cpumask *mask); + void (*send_call_func_single_ipi)(int cpu); +-}; ++} __no_const; + + /* Globals due to paravirt */ + extern void set_cpu_sibling_map(int cpu); +@@ -192,14 +192,8 @@ extern unsigned disabled_cpus __cpuinitdata; + extern int safe_smp_processor_id(void); + + #elif defined(CONFIG_X86_64_SMP) +-#define raw_smp_processor_id() (percpu_read(cpu_number)) +- +-#define stack_smp_processor_id() \ +-({ \ +- struct thread_info *ti; \ +- __asm__("andq %%rsp,%0; ":"=r" (ti) : "0" (CURRENT_MASK)); \ +- ti->cpu; \ +-}) ++#define raw_smp_processor_id() (percpu_read(cpu_number)) ++#define stack_smp_processor_id() raw_smp_processor_id() + #define safe_smp_processor_id() smp_processor_id() + + #endif +diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h +index 76bfa2c..12d3fe7 100644 +--- a/arch/x86/include/asm/spinlock.h ++++ b/arch/x86/include/asm/spinlock.h +@@ -175,6 +175,14 @@ static inline int arch_write_can_lock(arch_rwlock_t *lock) + static inline void arch_read_lock(arch_rwlock_t *rw) + { + asm volatile(LOCK_PREFIX READ_LOCK_SIZE(dec) " (%0)\n\t" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX READ_LOCK_SIZE(inc) " (%0)\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ + "jns 1f\n" + "call __read_lock_failed\n\t" + "1:\n" +@@ -184,6 +192,14 @@ static inline void arch_read_lock(arch_rwlock_t *rw) + static inline void arch_write_lock(arch_rwlock_t *rw) + { + asm volatile(LOCK_PREFIX WRITE_LOCK_SUB(%1) "(%0)\n\t" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX WRITE_LOCK_ADD(%1) "(%0)\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ + "jz 1f\n" + "call __write_lock_failed\n\t" + "1:\n" +@@ -213,13 +229,29 @@ static inline int arch_write_trylock(arch_rwlock_t *lock) + + static inline void arch_read_unlock(arch_rwlock_t *rw) + { +- asm volatile(LOCK_PREFIX READ_LOCK_SIZE(inc) " %0" ++ asm volatile(LOCK_PREFIX READ_LOCK_SIZE(inc) " %0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX READ_LOCK_SIZE(dec) " %0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ + :"+m" (rw->lock) : : "memory"); + } + + static inline void arch_write_unlock(arch_rwlock_t *rw) + { +- asm volatile(LOCK_PREFIX WRITE_LOCK_ADD(%1) "%0" ++ asm volatile(LOCK_PREFIX WRITE_LOCK_ADD(%1) "%0\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ LOCK_PREFIX WRITE_LOCK_SUB(%1) "%0\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ + : "+m" (rw->write) : "i" (RW_LOCK_BIAS) : "memory"); + } + +diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h +index b5d9533..41655fa 100644 +--- a/arch/x86/include/asm/stackprotector.h ++++ b/arch/x86/include/asm/stackprotector.h +@@ -47,7 +47,7 @@ + * head_32 for boot CPU and setup_per_cpu_areas() for others. + */ + #define GDT_STACK_CANARY_INIT \ +- [GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x18), ++ [GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x17), + + /* + * Initialize the stackprotector canary value. +@@ -112,7 +112,7 @@ static inline void setup_stack_canary_segment(int cpu) + + static inline void load_stack_canary_segment(void) + { +-#ifdef CONFIG_X86_32 ++#if defined(CONFIG_X86_32) && !defined(CONFIG_PAX_MEMORY_UDEREF) + asm volatile ("mov %0, %%gs" : : "r" (0)); + #endif + } +diff --git a/arch/x86/include/asm/stacktrace.h b/arch/x86/include/asm/stacktrace.h +index 70bbe39..4ae2bd4 100644 +--- a/arch/x86/include/asm/stacktrace.h ++++ b/arch/x86/include/asm/stacktrace.h +@@ -11,28 +11,20 @@ + + extern int kstack_depth_to_print; + +-struct thread_info; ++struct task_struct; + struct stacktrace_ops; + +-typedef unsigned long (*walk_stack_t)(struct thread_info *tinfo, +- unsigned long *stack, +- unsigned long bp, +- const struct stacktrace_ops *ops, +- void *data, +- unsigned long *end, +- int *graph); ++typedef unsigned long walk_stack_t(struct task_struct *task, ++ void *stack_start, ++ unsigned long *stack, ++ unsigned long bp, ++ const struct stacktrace_ops *ops, ++ void *data, ++ unsigned long *end, ++ int *graph); + +-extern unsigned long +-print_context_stack(struct thread_info *tinfo, +- unsigned long *stack, unsigned long bp, +- const struct stacktrace_ops *ops, void *data, +- unsigned long *end, int *graph); +- +-extern unsigned long +-print_context_stack_bp(struct thread_info *tinfo, +- unsigned long *stack, unsigned long bp, +- const struct stacktrace_ops *ops, void *data, +- unsigned long *end, int *graph); ++extern walk_stack_t print_context_stack; ++extern walk_stack_t print_context_stack_bp; + + /* Generic stack tracer with callbacks */ + +@@ -40,7 +32,7 @@ struct stacktrace_ops { + void (*address)(void *data, unsigned long address, int reliable); + /* On negative return stop dumping */ + int (*stack)(void *data, char *name); +- walk_stack_t walk_stack; ++ walk_stack_t *walk_stack; + }; + + void dump_trace(struct task_struct *tsk, struct pt_regs *regs, +diff --git a/arch/x86/include/asm/switch_to.h b/arch/x86/include/asm/switch_to.h +index 4ec45b3..a4f0a8a 100644 +--- a/arch/x86/include/asm/switch_to.h ++++ b/arch/x86/include/asm/switch_to.h +@@ -108,7 +108,7 @@ do { \ + "call __switch_to\n\t" \ + "movq "__percpu_arg([current_task])",%%rsi\n\t" \ + __switch_canary \ +- "movq %P[thread_info](%%rsi),%%r8\n\t" \ ++ "movq "__percpu_arg([thread_info])",%%r8\n\t" \ + "movq %%rax,%%rdi\n\t" \ + "testl %[_tif_fork],%P[ti_flags](%%r8)\n\t" \ + "jnz ret_from_fork\n\t" \ +@@ -119,7 +119,7 @@ do { \ + [threadrsp] "i" (offsetof(struct task_struct, thread.sp)), \ + [ti_flags] "i" (offsetof(struct thread_info, flags)), \ + [_tif_fork] "i" (_TIF_FORK), \ +- [thread_info] "i" (offsetof(struct task_struct, stack)), \ ++ [thread_info] "m" (current_tinfo), \ + [current_task] "m" (current_task) \ + __switch_canary_iparam \ + : "memory", "cc" __EXTRA_CLOBBER) +diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h +index 3fda9db4..4ca1c61 100644 +--- a/arch/x86/include/asm/sys_ia32.h ++++ b/arch/x86/include/asm/sys_ia32.h +@@ -40,7 +40,7 @@ asmlinkage long sys32_sigaction(int, struct old_sigaction32 __user *, + struct old_sigaction32 __user *); + asmlinkage long sys32_alarm(unsigned int); + +-asmlinkage long sys32_waitpid(compat_pid_t, unsigned int *, int); ++asmlinkage long sys32_waitpid(compat_pid_t, unsigned int __user *, int); + asmlinkage long sys32_sysfs(int, u32, u32); + + asmlinkage long sys32_sched_rr_get_interval(compat_pid_t, +diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h +index ad6df8c..5e0cf6e 100644 +--- a/arch/x86/include/asm/thread_info.h ++++ b/arch/x86/include/asm/thread_info.h +@@ -10,6 +10,7 @@ + #include <linux/compiler.h> + #include <asm/page.h> + #include <asm/types.h> ++#include <asm/percpu.h> + + /* + * low level task data that entry.S needs immediate access to +@@ -24,7 +25,6 @@ struct exec_domain; + #include <linux/atomic.h> + + struct thread_info { +- struct task_struct *task; /* main task structure */ + struct exec_domain *exec_domain; /* execution domain */ + __u32 flags; /* low level flags */ + __u32 status; /* thread synchronous flags */ +@@ -34,19 +34,13 @@ struct thread_info { + mm_segment_t addr_limit; + struct restart_block restart_block; + void __user *sysenter_return; +-#ifdef CONFIG_X86_32 +- unsigned long previous_esp; /* ESP of the previous stack in +- case of nested (IRQ) stacks +- */ +- __u8 supervisor_stack[0]; +-#endif ++ unsigned long lowest_stack; + unsigned int sig_on_uaccess_error:1; + unsigned int uaccess_err:1; /* uaccess failed */ + }; + +-#define INIT_THREAD_INFO(tsk) \ ++#define INIT_THREAD_INFO \ + { \ +- .task = &tsk, \ + .exec_domain = &default_exec_domain, \ + .flags = 0, \ + .cpu = 0, \ +@@ -57,7 +51,7 @@ struct thread_info { + }, \ + } + +-#define init_thread_info (init_thread_union.thread_info) ++#define init_thread_info (init_thread_union.stack) + #define init_stack (init_thread_union.stack) + + #else /* !__ASSEMBLY__ */ +@@ -97,6 +91,7 @@ struct thread_info { + #define TIF_SYSCALL_TRACEPOINT 28 /* syscall tracepoint instrumentation */ + #define TIF_ADDR32 29 /* 32-bit address space on 64 bits */ + #define TIF_X32 30 /* 32-bit native x86-64 binary */ ++#define TIF_GRSEC_SETXID 31 /* update credentials on syscall entry/exit */ + + #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) + #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) +@@ -120,16 +115,18 @@ struct thread_info { + #define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT) + #define _TIF_ADDR32 (1 << TIF_ADDR32) + #define _TIF_X32 (1 << TIF_X32) ++#define _TIF_GRSEC_SETXID (1 << TIF_GRSEC_SETXID) + + /* work to do in syscall_trace_enter() */ + #define _TIF_WORK_SYSCALL_ENTRY \ + (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | _TIF_SYSCALL_AUDIT | \ +- _TIF_SECCOMP | _TIF_SINGLESTEP | _TIF_SYSCALL_TRACEPOINT) ++ _TIF_SECCOMP | _TIF_SINGLESTEP | _TIF_SYSCALL_TRACEPOINT | \ ++ _TIF_GRSEC_SETXID) + + /* work to do in syscall_trace_leave() */ + #define _TIF_WORK_SYSCALL_EXIT \ + (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP | \ +- _TIF_SYSCALL_TRACEPOINT) ++ _TIF_SYSCALL_TRACEPOINT | _TIF_GRSEC_SETXID) + + /* work to do on interrupt/exception return */ + #define _TIF_WORK_MASK \ +@@ -139,7 +136,8 @@ struct thread_info { + + /* work to do on any return to user space */ + #define _TIF_ALLWORK_MASK \ +- ((0x0000FFFF & ~_TIF_SECCOMP) | _TIF_SYSCALL_TRACEPOINT) ++ ((0x0000FFFF & ~_TIF_SECCOMP) | _TIF_SYSCALL_TRACEPOINT | \ ++ _TIF_GRSEC_SETXID) + + /* Only used for 64 bit */ + #define _TIF_DO_NOTIFY_MASK \ +@@ -173,45 +171,40 @@ struct thread_info { + ret; \ + }) + +-#ifdef CONFIG_X86_32 +- +-#define STACK_WARN (THREAD_SIZE/8) +-/* +- * macros/functions for gaining access to the thread information structure +- * +- * preempt_count needs to be 1 initially, until the scheduler is functional. +- */ +-#ifndef __ASSEMBLY__ +- +- +-/* how to get the current stack pointer from C */ +-register unsigned long current_stack_pointer asm("esp") __used; +- +-/* how to get the thread information struct from C */ +-static inline struct thread_info *current_thread_info(void) +-{ +- return (struct thread_info *) +- (current_stack_pointer & ~(THREAD_SIZE - 1)); +-} +- +-#else /* !__ASSEMBLY__ */ +- ++#ifdef __ASSEMBLY__ + /* how to get the thread information struct from ASM */ + #define GET_THREAD_INFO(reg) \ +- movl $-THREAD_SIZE, reg; \ +- andl %esp, reg ++ mov PER_CPU_VAR(current_tinfo), reg + + /* use this one if reg already contains %esp */ +-#define GET_THREAD_INFO_WITH_ESP(reg) \ +- andl $-THREAD_SIZE, reg ++#define GET_THREAD_INFO_WITH_ESP(reg) GET_THREAD_INFO(reg) ++#else ++/* how to get the thread information struct from C */ ++DECLARE_PER_CPU(struct thread_info *, current_tinfo); ++ ++static __always_inline struct thread_info *current_thread_info(void) ++{ ++ return percpu_read_stable(current_tinfo); ++} ++#endif ++ ++#ifdef CONFIG_X86_32 ++ ++#define STACK_WARN (THREAD_SIZE/8) ++/* ++ * macros/functions for gaining access to the thread information structure ++ * ++ * preempt_count needs to be 1 initially, until the scheduler is functional. ++ */ ++#ifndef __ASSEMBLY__ ++ ++/* how to get the current stack pointer from C */ ++register unsigned long current_stack_pointer asm("esp") __used; + + #endif + + #else /* X86_32 */ + +-#include <asm/percpu.h> +-#define KERNEL_STACK_OFFSET (5*8) +- + /* + * macros/functions for gaining access to the thread information structure + * preempt_count needs to be 1 initially, until the scheduler is functional. +@@ -219,27 +212,8 @@ static inline struct thread_info *current_thread_info(void) + #ifndef __ASSEMBLY__ + DECLARE_PER_CPU(unsigned long, kernel_stack); + +-static inline struct thread_info *current_thread_info(void) +-{ +- struct thread_info *ti; +- ti = (void *)(percpu_read_stable(kernel_stack) + +- KERNEL_STACK_OFFSET - THREAD_SIZE); +- return ti; +-} +- +-#else /* !__ASSEMBLY__ */ +- +-/* how to get the thread information struct from ASM */ +-#define GET_THREAD_INFO(reg) \ +- movq PER_CPU_VAR(kernel_stack),reg ; \ +- subq $(THREAD_SIZE-KERNEL_STACK_OFFSET),reg +- +-/* +- * Same if PER_CPU_VAR(kernel_stack) is, perhaps with some offset, already in +- * a certain register (to be used in assembler memory operands). +- */ +-#define THREAD_INFO(reg, off) KERNEL_STACK_OFFSET+(off)-THREAD_SIZE(reg) +- ++/* how to get the current stack pointer from C */ ++register unsigned long current_stack_pointer asm("rsp") __used; + #endif + + #endif /* !X86_32 */ +@@ -285,5 +259,16 @@ extern void arch_task_cache_init(void); + extern void free_thread_info(struct thread_info *ti); + extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src); + #define arch_task_cache_init arch_task_cache_init ++ ++#define __HAVE_THREAD_FUNCTIONS ++#define task_thread_info(task) (&(task)->tinfo) ++#define task_stack_page(task) ((task)->stack) ++#define setup_thread_stack(p, org) do {} while (0) ++#define end_of_stack(p) ((unsigned long *)task_stack_page(p) + 1) ++ ++#define __HAVE_ARCH_TASK_STRUCT_ALLOCATOR ++extern struct task_struct *alloc_task_struct_node(int node); ++extern void free_task_struct(struct task_struct *); ++ + #endif + #endif /* _ASM_X86_THREAD_INFO_H */ +diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h +index e054459..14bc8a7 100644 +--- a/arch/x86/include/asm/uaccess.h ++++ b/arch/x86/include/asm/uaccess.h +@@ -7,12 +7,15 @@ + #include <linux/compiler.h> + #include <linux/thread_info.h> + #include <linux/string.h> ++#include <linux/sched.h> + #include <asm/asm.h> + #include <asm/page.h> + + #define VERIFY_READ 0 + #define VERIFY_WRITE 1 + ++extern void check_object_size(const void *ptr, unsigned long n, bool to); ++ + /* + * The fs value determines whether argument validity checking should be + * performed or not. If get_fs() == USER_DS, checking is performed, with +@@ -28,7 +31,12 @@ + + #define get_ds() (KERNEL_DS) + #define get_fs() (current_thread_info()->addr_limit) ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF) ++void __set_fs(mm_segment_t x); ++void set_fs(mm_segment_t x); ++#else + #define set_fs(x) (current_thread_info()->addr_limit = (x)) ++#endif + + #define segment_eq(a, b) ((a).seg == (b).seg) + +@@ -76,7 +84,33 @@ + * checks that the pointer is in the user space range - after calling + * this function, memory access functions may still return -EFAULT. + */ +-#define access_ok(type, addr, size) (likely(__range_not_ok(addr, size) == 0)) ++#define __access_ok(type, addr, size) (likely(__range_not_ok(addr, size) == 0)) ++#define access_ok(type, addr, size) \ ++({ \ ++ long __size = size; \ ++ unsigned long __addr = (unsigned long)addr; \ ++ unsigned long __addr_ao = __addr & PAGE_MASK; \ ++ unsigned long __end_ao = __addr + __size - 1; \ ++ bool __ret_ao = __range_not_ok(__addr, __size) == 0; \ ++ if (__ret_ao && unlikely((__end_ao ^ __addr_ao) & PAGE_MASK)) { \ ++ while(__addr_ao <= __end_ao) { \ ++ char __c_ao; \ ++ __addr_ao += PAGE_SIZE; \ ++ if (__size > PAGE_SIZE) \ ++ cond_resched(); \ ++ if (__get_user(__c_ao, (char __user *)__addr)) \ ++ break; \ ++ if (type != VERIFY_WRITE) { \ ++ __addr = __addr_ao; \ ++ continue; \ ++ } \ ++ if (__put_user(__c_ao, (char __user *)__addr)) \ ++ break; \ ++ __addr = __addr_ao; \ ++ } \ ++ } \ ++ __ret_ao; \ ++}) + + /* + * The exception table consists of pairs of addresses: the first is the +@@ -182,12 +216,20 @@ extern int __get_user_bad(void); + asm volatile("call __put_user_" #size : "=a" (__ret_pu) \ + : "0" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx") + +- ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF) ++#define __copyuser_seg "gs;" ++#define __COPYUSER_SET_ES "pushl %%gs; popl %%es\n" ++#define __COPYUSER_RESTORE_ES "pushl %%ss; popl %%es\n" ++#else ++#define __copyuser_seg ++#define __COPYUSER_SET_ES ++#define __COPYUSER_RESTORE_ES ++#endif + + #ifdef CONFIG_X86_32 + #define __put_user_asm_u64(x, addr, err, errret) \ +- asm volatile("1: movl %%eax,0(%2)\n" \ +- "2: movl %%edx,4(%2)\n" \ ++ asm volatile("1: "__copyuser_seg"movl %%eax,0(%2)\n" \ ++ "2: "__copyuser_seg"movl %%edx,4(%2)\n" \ + "3:\n" \ + ".section .fixup,\"ax\"\n" \ + "4: movl %3,%0\n" \ +@@ -199,8 +241,8 @@ extern int __get_user_bad(void); + : "A" (x), "r" (addr), "i" (errret), "0" (err)) + + #define __put_user_asm_ex_u64(x, addr) \ +- asm volatile("1: movl %%eax,0(%1)\n" \ +- "2: movl %%edx,4(%1)\n" \ ++ asm volatile("1: "__copyuser_seg"movl %%eax,0(%1)\n" \ ++ "2: "__copyuser_seg"movl %%edx,4(%1)\n" \ + "3:\n" \ + _ASM_EXTABLE(1b, 2b - 1b) \ + _ASM_EXTABLE(2b, 3b - 2b) \ +@@ -252,7 +294,7 @@ extern void __put_user_8(void); + __typeof__(*(ptr)) __pu_val; \ + __chk_user_ptr(ptr); \ + might_fault(); \ +- __pu_val = x; \ ++ __pu_val = (x); \ + switch (sizeof(*(ptr))) { \ + case 1: \ + __put_user_x(1, __pu_val, ptr, __ret_pu); \ +@@ -373,7 +415,7 @@ do { \ + } while (0) + + #define __get_user_asm(x, addr, err, itype, rtype, ltype, errret) \ +- asm volatile("1: mov"itype" %2,%"rtype"1\n" \ ++ asm volatile("1: "__copyuser_seg"mov"itype" %2,%"rtype"1\n"\ + "2:\n" \ + ".section .fixup,\"ax\"\n" \ + "3: mov %3,%0\n" \ +@@ -381,7 +423,7 @@ do { \ + " jmp 2b\n" \ + ".previous\n" \ + _ASM_EXTABLE(1b, 3b) \ +- : "=r" (err), ltype(x) \ ++ : "=r" (err), ltype (x) \ + : "m" (__m(addr)), "i" (errret), "0" (err)) + + #define __get_user_size_ex(x, ptr, size) \ +@@ -406,7 +448,7 @@ do { \ + } while (0) + + #define __get_user_asm_ex(x, addr, itype, rtype, ltype) \ +- asm volatile("1: mov"itype" %1,%"rtype"0\n" \ ++ asm volatile("1: "__copyuser_seg"mov"itype" %1,%"rtype"0\n"\ + "2:\n" \ + _ASM_EXTABLE(1b, 2b - 1b) \ + : ltype(x) : "m" (__m(addr))) +@@ -423,13 +465,24 @@ do { \ + int __gu_err; \ + unsigned long __gu_val; \ + __get_user_size(__gu_val, (ptr), (size), __gu_err, -EFAULT); \ +- (x) = (__force __typeof__(*(ptr)))__gu_val; \ ++ (x) = (__typeof__(*(ptr)))__gu_val; \ + __gu_err; \ + }) + + /* FIXME: this hack is definitely wrong -AK */ + struct __large_struct { unsigned long buf[100]; }; +-#define __m(x) (*(struct __large_struct __user *)(x)) ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++#define ____m(x) \ ++({ \ ++ unsigned long ____x = (unsigned long)(x); \ ++ if (____x < PAX_USER_SHADOW_BASE) \ ++ ____x += PAX_USER_SHADOW_BASE; \ ++ (void __user *)____x; \ ++}) ++#else ++#define ____m(x) (x) ++#endif ++#define __m(x) (*(struct __large_struct __user *)____m(x)) + + /* + * Tell gcc we read from memory instead of writing: this is because +@@ -437,7 +490,7 @@ struct __large_struct { unsigned long buf[100]; }; + * aliasing issues. + */ + #define __put_user_asm(x, addr, err, itype, rtype, ltype, errret) \ +- asm volatile("1: mov"itype" %"rtype"1,%2\n" \ ++ asm volatile("1: "__copyuser_seg"mov"itype" %"rtype"1,%2\n"\ + "2:\n" \ + ".section .fixup,\"ax\"\n" \ + "3: mov %3,%0\n" \ +@@ -445,10 +498,10 @@ struct __large_struct { unsigned long buf[100]; }; + ".previous\n" \ + _ASM_EXTABLE(1b, 3b) \ + : "=r"(err) \ +- : ltype(x), "m" (__m(addr)), "i" (errret), "0" (err)) ++ : ltype (x), "m" (__m(addr)), "i" (errret), "0" (err)) + + #define __put_user_asm_ex(x, addr, itype, rtype, ltype) \ +- asm volatile("1: mov"itype" %"rtype"0,%1\n" \ ++ asm volatile("1: "__copyuser_seg"mov"itype" %"rtype"0,%1\n"\ + "2:\n" \ + _ASM_EXTABLE(1b, 2b - 1b) \ + : : ltype(x), "m" (__m(addr))) +@@ -487,8 +540,12 @@ struct __large_struct { unsigned long buf[100]; }; + * On error, the variable @x is set to zero. + */ + ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++#define __get_user(x, ptr) get_user((x), (ptr)) ++#else + #define __get_user(x, ptr) \ + __get_user_nocheck((x), (ptr), sizeof(*(ptr))) ++#endif + + /** + * __put_user: - Write a simple value into user space, with less checking. +@@ -510,8 +567,12 @@ struct __large_struct { unsigned long buf[100]; }; + * Returns zero on success, or -EFAULT on error. + */ + ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++#define __put_user(x, ptr) put_user((x), (ptr)) ++#else + #define __put_user(x, ptr) \ + __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr))) ++#endif + + #define __get_user_unaligned __get_user + #define __put_user_unaligned __put_user +@@ -529,7 +590,7 @@ struct __large_struct { unsigned long buf[100]; }; + #define get_user_ex(x, ptr) do { \ + unsigned long __gue_val; \ + __get_user_size_ex((__gue_val), (ptr), (sizeof(*(ptr)))); \ +- (x) = (__force __typeof__(*(ptr)))__gue_val; \ ++ (x) = (__typeof__(*(ptr)))__gue_val; \ + } while (0) + + #ifdef CONFIG_X86_WP_WORKS_OK +diff --git a/arch/x86/include/asm/uaccess_32.h b/arch/x86/include/asm/uaccess_32.h +index 8084bc7..3d6ec37 100644 +--- a/arch/x86/include/asm/uaccess_32.h ++++ b/arch/x86/include/asm/uaccess_32.h +@@ -11,15 +11,15 @@ + #include <asm/page.h> + + unsigned long __must_check __copy_to_user_ll +- (void __user *to, const void *from, unsigned long n); ++ (void __user *to, const void *from, unsigned long n) __size_overflow(3); + unsigned long __must_check __copy_from_user_ll +- (void *to, const void __user *from, unsigned long n); ++ (void *to, const void __user *from, unsigned long n) __size_overflow(3); + unsigned long __must_check __copy_from_user_ll_nozero +- (void *to, const void __user *from, unsigned long n); ++ (void *to, const void __user *from, unsigned long n) __size_overflow(3); + unsigned long __must_check __copy_from_user_ll_nocache +- (void *to, const void __user *from, unsigned long n); ++ (void *to, const void __user *from, unsigned long n) __size_overflow(3); + unsigned long __must_check __copy_from_user_ll_nocache_nozero +- (void *to, const void __user *from, unsigned long n); ++ (void *to, const void __user *from, unsigned long n) __size_overflow(3); + + /** + * __copy_to_user_inatomic: - Copy a block of data into user space, with less checking. +@@ -43,6 +43,9 @@ unsigned long __must_check __copy_from_user_ll_nocache_nozero + static __always_inline unsigned long __must_check + __copy_to_user_inatomic(void __user *to, const void *from, unsigned long n) + { ++ if ((long)n < 0) ++ return n; ++ + if (__builtin_constant_p(n)) { + unsigned long ret; + +@@ -61,6 +64,8 @@ __copy_to_user_inatomic(void __user *to, const void *from, unsigned long n) + return ret; + } + } ++ if (!__builtin_constant_p(n)) ++ check_object_size(from, n, true); + return __copy_to_user_ll(to, from, n); + } + +@@ -82,12 +87,16 @@ static __always_inline unsigned long __must_check + __copy_to_user(void __user *to, const void *from, unsigned long n) + { + might_fault(); ++ + return __copy_to_user_inatomic(to, from, n); + } + + static __always_inline unsigned long + __copy_from_user_inatomic(void *to, const void __user *from, unsigned long n) + { ++ if ((long)n < 0) ++ return n; ++ + /* Avoid zeroing the tail if the copy fails.. + * If 'n' is constant and 1, 2, or 4, we do still zero on a failure, + * but as the zeroing behaviour is only significant when n is not +@@ -137,6 +146,10 @@ static __always_inline unsigned long + __copy_from_user(void *to, const void __user *from, unsigned long n) + { + might_fault(); ++ ++ if ((long)n < 0) ++ return n; ++ + if (__builtin_constant_p(n)) { + unsigned long ret; + +@@ -152,6 +165,8 @@ __copy_from_user(void *to, const void __user *from, unsigned long n) + return ret; + } + } ++ if (!__builtin_constant_p(n)) ++ check_object_size(to, n, false); + return __copy_from_user_ll(to, from, n); + } + +@@ -159,6 +174,10 @@ static __always_inline unsigned long __copy_from_user_nocache(void *to, + const void __user *from, unsigned long n) + { + might_fault(); ++ ++ if ((long)n < 0) ++ return n; ++ + if (__builtin_constant_p(n)) { + unsigned long ret; + +@@ -181,15 +200,19 @@ static __always_inline unsigned long + __copy_from_user_inatomic_nocache(void *to, const void __user *from, + unsigned long n) + { +- return __copy_from_user_ll_nocache_nozero(to, from, n); ++ if ((long)n < 0) ++ return n; ++ ++ return __copy_from_user_ll_nocache_nozero(to, from, n); + } + +-unsigned long __must_check copy_to_user(void __user *to, +- const void *from, unsigned long n); +-unsigned long __must_check _copy_from_user(void *to, +- const void __user *from, +- unsigned long n); +- ++extern void copy_to_user_overflow(void) ++#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS ++ __compiletime_error("copy_to_user() buffer size is not provably correct") ++#else ++ __compiletime_warning("copy_to_user() buffer size is not provably correct") ++#endif ++; + + extern void copy_from_user_overflow(void) + #ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS +@@ -199,17 +222,61 @@ extern void copy_from_user_overflow(void) + #endif + ; + +-static inline unsigned long __must_check copy_from_user(void *to, +- const void __user *from, +- unsigned long n) ++/** ++ * copy_to_user: - Copy a block of data into user space. ++ * @to: Destination address, in user space. ++ * @from: Source address, in kernel space. ++ * @n: Number of bytes to copy. ++ * ++ * Context: User context only. This function may sleep. ++ * ++ * Copy data from kernel space to user space. ++ * ++ * Returns number of bytes that could not be copied. ++ * On success, this will be zero. ++ */ ++static inline unsigned long __must_check ++copy_to_user(void __user *to, const void *from, unsigned long n) + { +- int sz = __compiletime_object_size(to); ++ size_t sz = __compiletime_object_size(from); + +- if (likely(sz == -1 || sz >= n)) +- n = _copy_from_user(to, from, n); +- else ++ if (unlikely(sz != (size_t)-1 && sz < n)) ++ copy_to_user_overflow(); ++ else if (access_ok(VERIFY_WRITE, to, n)) ++ n = __copy_to_user(to, from, n); ++ return n; ++} ++ ++/** ++ * copy_from_user: - Copy a block of data from user space. ++ * @to: Destination address, in kernel space. ++ * @from: Source address, in user space. ++ * @n: Number of bytes to copy. ++ * ++ * Context: User context only. This function may sleep. ++ * ++ * Copy data from user space to kernel space. ++ * ++ * Returns number of bytes that could not be copied. ++ * On success, this will be zero. ++ * ++ * If some data could not be copied, this function will pad the copied ++ * data to the requested size using zero bytes. ++ */ ++static inline unsigned long __must_check ++copy_from_user(void *to, const void __user *from, unsigned long n) ++{ ++ size_t sz = __compiletime_object_size(to); ++ ++ if (unlikely(sz != (size_t)-1 && sz < n)) + copy_from_user_overflow(); +- ++ else if (access_ok(VERIFY_READ, from, n)) ++ n = __copy_from_user(to, from, n); ++ else if ((long)n > 0) { ++ if (!__builtin_constant_p(n)) ++ check_object_size(to, n, false); ++ memset(to, 0, n); ++ } + return n; + } + +@@ -230,7 +297,7 @@ static inline unsigned long __must_check copy_from_user(void *to, + #define strlen_user(str) strnlen_user(str, LONG_MAX) + + long strnlen_user(const char __user *str, long n); +-unsigned long __must_check clear_user(void __user *mem, unsigned long len); +-unsigned long __must_check __clear_user(void __user *mem, unsigned long len); ++unsigned long __must_check clear_user(void __user *mem, unsigned long len) __size_overflow(2); ++unsigned long __must_check __clear_user(void __user *mem, unsigned long len) __size_overflow(2); + + #endif /* _ASM_X86_UACCESS_32_H */ +diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h +index fcd4b6f..ef04f8f 100644 +--- a/arch/x86/include/asm/uaccess_64.h ++++ b/arch/x86/include/asm/uaccess_64.h +@@ -10,6 +10,9 @@ + #include <asm/alternative.h> + #include <asm/cpufeature.h> + #include <asm/page.h> ++#include <asm/pgtable.h> ++ ++#define set_fs(x) (current_thread_info()->addr_limit = (x)) + + /* + * Copy To/From Userspace +@@ -17,12 +20,14 @@ + + /* Handles exceptions in both to and from, but doesn't do access_ok */ + __must_check unsigned long +-copy_user_generic_string(void *to, const void *from, unsigned len); ++copy_user_generic_string(void *to, const void *from, unsigned long len) __size_overflow(3); + __must_check unsigned long +-copy_user_generic_unrolled(void *to, const void *from, unsigned len); ++copy_user_generic_unrolled(void *to, const void *from, unsigned long len) __size_overflow(3); + + static __always_inline __must_check unsigned long +-copy_user_generic(void *to, const void *from, unsigned len) ++copy_user_generic(void *to, const void *from, unsigned long len) __size_overflow(3); ++static __always_inline __must_check unsigned long ++copy_user_generic(void *to, const void *from, unsigned long len) + { + unsigned ret; + +@@ -32,142 +37,238 @@ copy_user_generic(void *to, const void *from, unsigned len) + ASM_OUTPUT2("=a" (ret), "=D" (to), "=S" (from), + "=d" (len)), + "1" (to), "2" (from), "3" (len) +- : "memory", "rcx", "r8", "r9", "r10", "r11"); ++ : "memory", "rcx", "r8", "r9", "r11"); + return ret; + } + ++static __always_inline __must_check unsigned long ++__copy_to_user(void __user *to, const void *from, unsigned long len) __size_overflow(3); ++static __always_inline __must_check unsigned long ++__copy_from_user(void *to, const void __user *from, unsigned long len) __size_overflow(3); + __must_check unsigned long +-_copy_to_user(void __user *to, const void *from, unsigned len); +-__must_check unsigned long +-_copy_from_user(void *to, const void __user *from, unsigned len); +-__must_check unsigned long +-copy_in_user(void __user *to, const void __user *from, unsigned len); ++copy_in_user(void __user *to, const void __user *from, unsigned long len) __size_overflow(3); ++ ++extern void copy_to_user_overflow(void) ++#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS ++ __compiletime_error("copy_to_user() buffer size is not provably correct") ++#else ++ __compiletime_warning("copy_to_user() buffer size is not provably correct") ++#endif ++; ++ ++extern void copy_from_user_overflow(void) ++#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS ++ __compiletime_error("copy_from_user() buffer size is not provably correct") ++#else ++ __compiletime_warning("copy_from_user() buffer size is not provably correct") ++#endif ++; + + static inline unsigned long __must_check copy_from_user(void *to, + const void __user *from, + unsigned long n) + { +- int sz = __compiletime_object_size(to); +- + might_fault(); +- if (likely(sz == -1 || sz >= n)) +- n = _copy_from_user(to, from, n); +-#ifdef CONFIG_DEBUG_VM +- else +- WARN(1, "Buffer overflow detected!\n"); +-#endif ++ ++ if (access_ok(VERIFY_READ, from, n)) ++ n = __copy_from_user(to, from, n); ++ else if (n < INT_MAX) { ++ if (!__builtin_constant_p(n)) ++ check_object_size(to, n, false); ++ memset(to, 0, n); ++ } + return n; + } + + static __always_inline __must_check +-int copy_to_user(void __user *dst, const void *src, unsigned size) ++int copy_to_user(void __user *dst, const void *src, unsigned long size) + { + might_fault(); + +- return _copy_to_user(dst, src, size); ++ if (access_ok(VERIFY_WRITE, dst, size)) ++ size = __copy_to_user(dst, src, size); ++ return size; + } + + static __always_inline __must_check +-int __copy_from_user(void *dst, const void __user *src, unsigned size) ++unsigned long __copy_from_user(void *dst, const void __user *src, unsigned long size) + { +- int ret = 0; ++ size_t sz = __compiletime_object_size(dst); ++ unsigned ret = 0; + + might_fault(); +- if (!__builtin_constant_p(size)) +- return copy_user_generic(dst, (__force void *)src, size); ++ ++ if (size > INT_MAX) ++ return size; ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if (!__access_ok(VERIFY_READ, src, size)) ++ return size; ++#endif ++ ++ if (unlikely(sz != (size_t)-1 && sz < size)) { ++ copy_from_user_overflow(); ++ return size; ++ } ++ ++ if (!__builtin_constant_p(size)) { ++ check_object_size(dst, size, false); ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if ((unsigned long)src < PAX_USER_SHADOW_BASE) ++ src += PAX_USER_SHADOW_BASE; ++#endif ++ ++ return copy_user_generic(dst, (__force_kernel const void *)src, size); ++ } + switch (size) { +- case 1:__get_user_asm(*(u8 *)dst, (u8 __user *)src, ++ case 1:__get_user_asm(*(u8 *)dst, (const u8 __user *)src, + ret, "b", "b", "=q", 1); + return ret; +- case 2:__get_user_asm(*(u16 *)dst, (u16 __user *)src, ++ case 2:__get_user_asm(*(u16 *)dst, (const u16 __user *)src, + ret, "w", "w", "=r", 2); + return ret; +- case 4:__get_user_asm(*(u32 *)dst, (u32 __user *)src, ++ case 4:__get_user_asm(*(u32 *)dst, (const u32 __user *)src, + ret, "l", "k", "=r", 4); + return ret; +- case 8:__get_user_asm(*(u64 *)dst, (u64 __user *)src, ++ case 8:__get_user_asm(*(u64 *)dst, (const u64 __user *)src, + ret, "q", "", "=r", 8); + return ret; + case 10: +- __get_user_asm(*(u64 *)dst, (u64 __user *)src, ++ __get_user_asm(*(u64 *)dst, (const u64 __user *)src, + ret, "q", "", "=r", 10); + if (unlikely(ret)) + return ret; + __get_user_asm(*(u16 *)(8 + (char *)dst), +- (u16 __user *)(8 + (char __user *)src), ++ (const u16 __user *)(8 + (const char __user *)src), + ret, "w", "w", "=r", 2); + return ret; + case 16: +- __get_user_asm(*(u64 *)dst, (u64 __user *)src, ++ __get_user_asm(*(u64 *)dst, (const u64 __user *)src, + ret, "q", "", "=r", 16); + if (unlikely(ret)) + return ret; + __get_user_asm(*(u64 *)(8 + (char *)dst), +- (u64 __user *)(8 + (char __user *)src), ++ (const u64 __user *)(8 + (const char __user *)src), + ret, "q", "", "=r", 8); + return ret; + default: +- return copy_user_generic(dst, (__force void *)src, size); ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if ((unsigned long)src < PAX_USER_SHADOW_BASE) ++ src += PAX_USER_SHADOW_BASE; ++#endif ++ ++ return copy_user_generic(dst, (__force_kernel const void *)src, size); + } + } + + static __always_inline __must_check +-int __copy_to_user(void __user *dst, const void *src, unsigned size) ++unsigned long __copy_to_user(void __user *dst, const void *src, unsigned long size) + { +- int ret = 0; ++ size_t sz = __compiletime_object_size(src); ++ unsigned ret = 0; + + might_fault(); +- if (!__builtin_constant_p(size)) +- return copy_user_generic((__force void *)dst, src, size); ++ ++ if (size > INT_MAX) ++ return size; ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if (!__access_ok(VERIFY_WRITE, dst, size)) ++ return size; ++#endif ++ ++ if (unlikely(sz != (size_t)-1 && sz < size)) { ++ copy_to_user_overflow(); ++ return size; ++ } ++ ++ if (!__builtin_constant_p(size)) { ++ check_object_size(src, size, true); ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if ((unsigned long)dst < PAX_USER_SHADOW_BASE) ++ dst += PAX_USER_SHADOW_BASE; ++#endif ++ ++ return copy_user_generic((__force_kernel void *)dst, src, size); ++ } + switch (size) { +- case 1:__put_user_asm(*(u8 *)src, (u8 __user *)dst, ++ case 1:__put_user_asm(*(const u8 *)src, (u8 __user *)dst, + ret, "b", "b", "iq", 1); + return ret; +- case 2:__put_user_asm(*(u16 *)src, (u16 __user *)dst, ++ case 2:__put_user_asm(*(const u16 *)src, (u16 __user *)dst, + ret, "w", "w", "ir", 2); + return ret; +- case 4:__put_user_asm(*(u32 *)src, (u32 __user *)dst, ++ case 4:__put_user_asm(*(const u32 *)src, (u32 __user *)dst, + ret, "l", "k", "ir", 4); + return ret; +- case 8:__put_user_asm(*(u64 *)src, (u64 __user *)dst, ++ case 8:__put_user_asm(*(const u64 *)src, (u64 __user *)dst, + ret, "q", "", "er", 8); + return ret; + case 10: +- __put_user_asm(*(u64 *)src, (u64 __user *)dst, ++ __put_user_asm(*(const u64 *)src, (u64 __user *)dst, + ret, "q", "", "er", 10); + if (unlikely(ret)) + return ret; + asm("":::"memory"); +- __put_user_asm(4[(u16 *)src], 4 + (u16 __user *)dst, ++ __put_user_asm(4[(const u16 *)src], 4 + (u16 __user *)dst, + ret, "w", "w", "ir", 2); + return ret; + case 16: +- __put_user_asm(*(u64 *)src, (u64 __user *)dst, ++ __put_user_asm(*(const u64 *)src, (u64 __user *)dst, + ret, "q", "", "er", 16); + if (unlikely(ret)) + return ret; + asm("":::"memory"); +- __put_user_asm(1[(u64 *)src], 1 + (u64 __user *)dst, ++ __put_user_asm(1[(const u64 *)src], 1 + (u64 __user *)dst, + ret, "q", "", "er", 8); + return ret; + default: +- return copy_user_generic((__force void *)dst, src, size); ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if ((unsigned long)dst < PAX_USER_SHADOW_BASE) ++ dst += PAX_USER_SHADOW_BASE; ++#endif ++ ++ return copy_user_generic((__force_kernel void *)dst, src, size); + } + } + + static __always_inline __must_check +-int __copy_in_user(void __user *dst, const void __user *src, unsigned size) ++unsigned long __copy_in_user(void __user *dst, const void __user *src, unsigned long size) + { +- int ret = 0; ++ unsigned ret = 0; + + might_fault(); +- if (!__builtin_constant_p(size)) +- return copy_user_generic((__force void *)dst, +- (__force void *)src, size); ++ ++ if (size > INT_MAX) ++ return size; ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if (!__access_ok(VERIFY_READ, src, size)) ++ return size; ++ if (!__access_ok(VERIFY_WRITE, dst, size)) ++ return size; ++#endif ++ ++ if (!__builtin_constant_p(size)) { ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if ((unsigned long)src < PAX_USER_SHADOW_BASE) ++ src += PAX_USER_SHADOW_BASE; ++ if ((unsigned long)dst < PAX_USER_SHADOW_BASE) ++ dst += PAX_USER_SHADOW_BASE; ++#endif ++ ++ return copy_user_generic((__force_kernel void *)dst, ++ (__force_kernel const void *)src, size); ++ } + switch (size) { + case 1: { + u8 tmp; +- __get_user_asm(tmp, (u8 __user *)src, ++ __get_user_asm(tmp, (const u8 __user *)src, + ret, "b", "b", "=q", 1); + if (likely(!ret)) + __put_user_asm(tmp, (u8 __user *)dst, +@@ -176,7 +277,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size) + } + case 2: { + u16 tmp; +- __get_user_asm(tmp, (u16 __user *)src, ++ __get_user_asm(tmp, (const u16 __user *)src, + ret, "w", "w", "=r", 2); + if (likely(!ret)) + __put_user_asm(tmp, (u16 __user *)dst, +@@ -186,7 +287,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size) + + case 4: { + u32 tmp; +- __get_user_asm(tmp, (u32 __user *)src, ++ __get_user_asm(tmp, (const u32 __user *)src, + ret, "l", "k", "=r", 4); + if (likely(!ret)) + __put_user_asm(tmp, (u32 __user *)dst, +@@ -195,7 +296,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size) + } + case 8: { + u64 tmp; +- __get_user_asm(tmp, (u64 __user *)src, ++ __get_user_asm(tmp, (const u64 __user *)src, + ret, "q", "", "=r", 8); + if (likely(!ret)) + __put_user_asm(tmp, (u64 __user *)dst, +@@ -203,47 +304,92 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size) + return ret; + } + default: +- return copy_user_generic((__force void *)dst, +- (__force void *)src, size); ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if ((unsigned long)src < PAX_USER_SHADOW_BASE) ++ src += PAX_USER_SHADOW_BASE; ++ if ((unsigned long)dst < PAX_USER_SHADOW_BASE) ++ dst += PAX_USER_SHADOW_BASE; ++#endif ++ ++ return copy_user_generic((__force_kernel void *)dst, ++ (__force_kernel const void *)src, size); + } + } + + __must_check long strnlen_user(const char __user *str, long n); + __must_check long __strnlen_user(const char __user *str, long n); + __must_check long strlen_user(const char __user *str); +-__must_check unsigned long clear_user(void __user *mem, unsigned long len); +-__must_check unsigned long __clear_user(void __user *mem, unsigned long len); ++__must_check unsigned long clear_user(void __user *mem, unsigned long len) __size_overflow(2); ++__must_check unsigned long __clear_user(void __user *mem, unsigned long len) __size_overflow(2); + + static __must_check __always_inline int +-__copy_from_user_inatomic(void *dst, const void __user *src, unsigned size) ++__copy_from_user_inatomic(void *dst, const void __user *src, unsigned long size) + { +- return copy_user_generic(dst, (__force const void *)src, size); ++ if (size > INT_MAX) ++ return size; ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if (!__access_ok(VERIFY_READ, src, size)) ++ return size; ++ ++ if ((unsigned long)src < PAX_USER_SHADOW_BASE) ++ src += PAX_USER_SHADOW_BASE; ++#endif ++ ++ return copy_user_generic(dst, (__force_kernel const void *)src, size); + } + +-static __must_check __always_inline int +-__copy_to_user_inatomic(void __user *dst, const void *src, unsigned size) ++static __must_check __always_inline unsigned long ++__copy_to_user_inatomic(void __user *dst, const void *src, unsigned long size) + { +- return copy_user_generic((__force void *)dst, src, size); ++ if (size > INT_MAX) ++ return size; ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if (!__access_ok(VERIFY_WRITE, dst, size)) ++ return size; ++ ++ if ((unsigned long)dst < PAX_USER_SHADOW_BASE) ++ dst += PAX_USER_SHADOW_BASE; ++#endif ++ ++ return copy_user_generic((__force_kernel void *)dst, src, size); + } + +-extern long __copy_user_nocache(void *dst, const void __user *src, +- unsigned size, int zerorest); ++extern unsigned long __copy_user_nocache(void *dst, const void __user *src, ++ unsigned long size, int zerorest) __size_overflow(3); + +-static inline int +-__copy_from_user_nocache(void *dst, const void __user *src, unsigned size) ++static inline unsigned long __copy_from_user_nocache(void *dst, const void __user *src, unsigned long size) + { + might_sleep(); ++ ++ if (size > INT_MAX) ++ return size; ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if (!__access_ok(VERIFY_READ, src, size)) ++ return size; ++#endif ++ + return __copy_user_nocache(dst, src, size, 1); + } + +-static inline int +-__copy_from_user_inatomic_nocache(void *dst, const void __user *src, +- unsigned size) ++static inline unsigned long __copy_from_user_inatomic_nocache(void *dst, const void __user *src, ++ unsigned long size) + { ++ if (size > INT_MAX) ++ return size; ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if (!__access_ok(VERIFY_READ, src, size)) ++ return size; ++#endif ++ + return __copy_user_nocache(dst, src, size, 0); + } + +-unsigned long +-copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest); ++extern unsigned long ++copy_user_handle_tail(char __user *to, char __user *from, unsigned long len, unsigned zerorest) __size_overflow(3); + + #endif /* _ASM_X86_UACCESS_64_H */ +diff --git a/arch/x86/include/asm/vdso.h b/arch/x86/include/asm/vdso.h +index bb05228..d763d5b 100644 +--- a/arch/x86/include/asm/vdso.h ++++ b/arch/x86/include/asm/vdso.h +@@ -11,7 +11,7 @@ extern const char VDSO32_PRELINK[]; + #define VDSO32_SYMBOL(base, name) \ + ({ \ + extern const char VDSO32_##name[]; \ +- (void *)(VDSO32_##name - VDSO32_PRELINK + (unsigned long)(base)); \ ++ (void __user *)(VDSO32_##name - VDSO32_PRELINK + (unsigned long)(base)); \ + }) + #endif + +diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h +index 764b66a..ad3cfc8 100644 +--- a/arch/x86/include/asm/x86_init.h ++++ b/arch/x86/include/asm/x86_init.h +@@ -29,7 +29,7 @@ struct x86_init_mpparse { + void (*mpc_oem_bus_info)(struct mpc_bus *m, char *name); + void (*find_smp_config)(void); + void (*get_smp_config)(unsigned int early); +-}; ++} __no_const; + + /** + * struct x86_init_resources - platform specific resource related ops +@@ -43,7 +43,7 @@ struct x86_init_resources { + void (*probe_roms)(void); + void (*reserve_resources)(void); + char *(*memory_setup)(void); +-}; ++} __no_const; + + /** + * struct x86_init_irqs - platform specific interrupt setup +@@ -56,7 +56,7 @@ struct x86_init_irqs { + void (*pre_vector_init)(void); + void (*intr_init)(void); + void (*trap_init)(void); +-}; ++} __no_const; + + /** + * struct x86_init_oem - oem platform specific customizing functions +@@ -66,7 +66,7 @@ struct x86_init_irqs { + struct x86_init_oem { + void (*arch_setup)(void); + void (*banner)(void); +-}; ++} __no_const; + + /** + * struct x86_init_mapping - platform specific initial kernel pagetable setup +@@ -77,7 +77,7 @@ struct x86_init_oem { + */ + struct x86_init_mapping { + void (*pagetable_reserve)(u64 start, u64 end); +-}; ++} __no_const; + + /** + * struct x86_init_paging - platform specific paging functions +@@ -87,7 +87,7 @@ struct x86_init_mapping { + struct x86_init_paging { + void (*pagetable_setup_start)(pgd_t *base); + void (*pagetable_setup_done)(pgd_t *base); +-}; ++} __no_const; + + /** + * struct x86_init_timers - platform specific timer setup +@@ -102,7 +102,7 @@ struct x86_init_timers { + void (*tsc_pre_init)(void); + void (*timer_init)(void); + void (*wallclock_init)(void); +-}; ++} __no_const; + + /** + * struct x86_init_iommu - platform specific iommu setup +@@ -110,7 +110,7 @@ struct x86_init_timers { + */ + struct x86_init_iommu { + int (*iommu_init)(void); +-}; ++} __no_const; + + /** + * struct x86_init_pci - platform specific pci init functions +@@ -124,7 +124,7 @@ struct x86_init_pci { + int (*init)(void); + void (*init_irq)(void); + void (*fixup_irqs)(void); +-}; ++} __no_const; + + /** + * struct x86_init_ops - functions for platform specific setup +@@ -140,7 +140,7 @@ struct x86_init_ops { + struct x86_init_timers timers; + struct x86_init_iommu iommu; + struct x86_init_pci pci; +-}; ++} __no_const; + + /** + * struct x86_cpuinit_ops - platform specific cpu hotplug setups +@@ -151,7 +151,7 @@ struct x86_cpuinit_ops { + void (*setup_percpu_clockev)(void); + void (*early_percpu_clock_init)(void); + void (*fixup_cpu_id)(struct cpuinfo_x86 *c, int node); +-}; ++} __no_const; + + /** + * struct x86_platform_ops - platform specific runtime functions +@@ -177,7 +177,7 @@ struct x86_platform_ops { + int (*i8042_detect)(void); + void (*save_sched_clock_state)(void); + void (*restore_sched_clock_state)(void); +-}; ++} __no_const; + + struct pci_dev; + +@@ -186,7 +186,7 @@ struct x86_msi_ops { + void (*teardown_msi_irq)(unsigned int irq); + void (*teardown_msi_irqs)(struct pci_dev *dev); + void (*restore_msi_irqs)(struct pci_dev *dev, int irq); +-}; ++} __no_const; + + extern struct x86_init_ops x86_init; + extern struct x86_cpuinit_ops x86_cpuinit; +diff --git a/arch/x86/include/asm/xsave.h b/arch/x86/include/asm/xsave.h +index c6ce245..ffbdab7 100644 +--- a/arch/x86/include/asm/xsave.h ++++ b/arch/x86/include/asm/xsave.h +@@ -65,6 +65,11 @@ static inline int xsave_user(struct xsave_struct __user *buf) + { + int err; + ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++ if ((unsigned long)buf < PAX_USER_SHADOW_BASE) ++ buf = (struct xsave_struct __user *)((void __user*)buf + PAX_USER_SHADOW_BASE); ++#endif ++ + /* + * Clear the xsave header first, so that reserved fields are + * initialized to zero. +@@ -96,10 +101,15 @@ static inline int xsave_user(struct xsave_struct __user *buf) + static inline int xrestore_user(struct xsave_struct __user *buf, u64 mask) + { + int err; +- struct xsave_struct *xstate = ((__force struct xsave_struct *)buf); ++ struct xsave_struct *xstate = ((__force_kernel struct xsave_struct *)buf); + u32 lmask = mask; + u32 hmask = mask >> 32; + ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++ if ((unsigned long)xstate < PAX_USER_SHADOW_BASE) ++ xstate = (struct xsave_struct *)((void *)xstate + PAX_USER_SHADOW_BASE); ++#endif ++ + __asm__ __volatile__("1: .byte " REX_PREFIX "0x0f,0xae,0x2f\n" + "2:\n" + ".section .fixup,\"ax\"\n" +diff --git a/arch/x86/kernel/acpi/realmode/Makefile b/arch/x86/kernel/acpi/realmode/Makefile +index 6a564ac..9b1340c 100644 +--- a/arch/x86/kernel/acpi/realmode/Makefile ++++ b/arch/x86/kernel/acpi/realmode/Makefile +@@ -41,6 +41,9 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D_WAKEUP -D__KERNEL__ \ + $(call cc-option, -fno-stack-protector) \ + $(call cc-option, -mpreferred-stack-boundary=2) + KBUILD_CFLAGS += $(call cc-option, -m32) ++ifdef CONSTIFY_PLUGIN ++KBUILD_CFLAGS += $(CONSTIFY_PLUGIN) -fplugin-arg-constify_plugin-no-constify ++endif + KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ + GCOV_PROFILE := n + +diff --git a/arch/x86/kernel/acpi/realmode/wakeup.S b/arch/x86/kernel/acpi/realmode/wakeup.S +index b4fd836..4358fe3 100644 +--- a/arch/x86/kernel/acpi/realmode/wakeup.S ++++ b/arch/x86/kernel/acpi/realmode/wakeup.S +@@ -108,6 +108,9 @@ wakeup_code: + /* Do any other stuff... */ + + #ifndef CONFIG_64BIT ++ /* Recheck NX bit overrides (64bit path does this in trampoline */ ++ call verify_cpu ++ + /* This could also be done in C code... */ + movl pmode_cr3, %eax + movl %eax, %cr3 +@@ -131,6 +134,7 @@ wakeup_code: + movl pmode_cr0, %eax + movl %eax, %cr0 + jmp pmode_return ++# include "../../verify_cpu.S" + #else + pushw $0 + pushw trampoline_segment +diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c +index 146a49c..1b5338b 100644 +--- a/arch/x86/kernel/acpi/sleep.c ++++ b/arch/x86/kernel/acpi/sleep.c +@@ -98,8 +98,12 @@ int acpi_suspend_lowlevel(void) + header->trampoline_segment = trampoline_address() >> 4; + #ifdef CONFIG_SMP + stack_start = (unsigned long)temp_stack + sizeof(temp_stack); ++ ++ pax_open_kernel(); + early_gdt_descr.address = + (unsigned long)get_cpu_gdt_table(smp_processor_id()); ++ pax_close_kernel(); ++ + initial_gs = per_cpu_offset(smp_processor_id()); + #endif + initial_code = (unsigned long)wakeup_long64; +diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S +index 7261083..5c12053 100644 +--- a/arch/x86/kernel/acpi/wakeup_32.S ++++ b/arch/x86/kernel/acpi/wakeup_32.S +@@ -30,13 +30,11 @@ wakeup_pmode_return: + # and restore the stack ... but you need gdt for this to work + movl saved_context_esp, %esp + +- movl %cs:saved_magic, %eax +- cmpl $0x12345678, %eax ++ cmpl $0x12345678, saved_magic + jne bogus_magic + + # jump to place where we left off +- movl saved_eip, %eax +- jmp *%eax ++ jmp *(saved_eip) + + bogus_magic: + jmp bogus_magic +diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c +index 1f84794..e23f862 100644 +--- a/arch/x86/kernel/alternative.c ++++ b/arch/x86/kernel/alternative.c +@@ -276,6 +276,13 @@ void __init_or_module apply_alternatives(struct alt_instr *start, + */ + for (a = start; a < end; a++) { + instr = (u8 *)&a->instr_offset + a->instr_offset; ++ ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) ++ instr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR; ++ if (instr < (u8 *)_text || (u8 *)_einittext <= instr) ++ instr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR; ++#endif ++ + replacement = (u8 *)&a->repl_offset + a->repl_offset; + BUG_ON(a->replacementlen > a->instrlen); + BUG_ON(a->instrlen > sizeof(insnbuf)); +@@ -307,10 +314,16 @@ static void alternatives_smp_lock(const s32 *start, const s32 *end, + for (poff = start; poff < end; poff++) { + u8 *ptr = (u8 *)poff + *poff; + ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) ++ ptr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR; ++ if (ptr < (u8 *)_text || (u8 *)_einittext <= ptr) ++ ptr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR; ++#endif ++ + if (!*poff || ptr < text || ptr >= text_end) + continue; + /* turn DS segment override prefix into lock prefix */ +- if (*ptr == 0x3e) ++ if (*ktla_ktva(ptr) == 0x3e) + text_poke(ptr, ((unsigned char []){0xf0}), 1); + }; + mutex_unlock(&text_mutex); +@@ -328,10 +341,16 @@ static void alternatives_smp_unlock(const s32 *start, const s32 *end, + for (poff = start; poff < end; poff++) { + u8 *ptr = (u8 *)poff + *poff; + ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) ++ ptr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR; ++ if (ptr < (u8 *)_text || (u8 *)_einittext <= ptr) ++ ptr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR; ++#endif ++ + if (!*poff || ptr < text || ptr >= text_end) + continue; + /* turn lock prefix into DS segment override prefix */ +- if (*ptr == 0xf0) ++ if (*ktla_ktva(ptr) == 0xf0) + text_poke(ptr, ((unsigned char []){0x3E}), 1); + }; + mutex_unlock(&text_mutex); +@@ -500,7 +519,7 @@ void __init_or_module apply_paravirt(struct paravirt_patch_site *start, + + BUG_ON(p->len > MAX_PATCH_LEN); + /* prep the buffer with the original instructions */ +- memcpy(insnbuf, p->instr, p->len); ++ memcpy(insnbuf, ktla_ktva(p->instr), p->len); + used = pv_init_ops.patch(p->instrtype, p->clobbers, insnbuf, + (unsigned long)p->instr, p->len); + +@@ -568,7 +587,7 @@ void __init alternative_instructions(void) + if (smp_alt_once) + free_init_pages("SMP alternatives", + (unsigned long)__smp_locks, +- (unsigned long)__smp_locks_end); ++ PAGE_ALIGN((unsigned long)__smp_locks_end)); + + restart_nmi(); + } +@@ -585,13 +604,17 @@ void __init alternative_instructions(void) + * instructions. And on the local CPU you need to be protected again NMI or MCE + * handlers seeing an inconsistent instruction while you patch. + */ +-void *__init_or_module text_poke_early(void *addr, const void *opcode, ++void *__kprobes text_poke_early(void *addr, const void *opcode, + size_t len) + { + unsigned long flags; + local_irq_save(flags); +- memcpy(addr, opcode, len); ++ ++ pax_open_kernel(); ++ memcpy(ktla_ktva(addr), opcode, len); + sync_core(); ++ pax_close_kernel(); ++ + local_irq_restore(flags); + /* Could also do a CLFLUSH here to speed up CPU recovery; but + that causes hangs on some VIA CPUs. */ +@@ -613,36 +636,22 @@ void *__init_or_module text_poke_early(void *addr, const void *opcode, + */ + void *__kprobes text_poke(void *addr, const void *opcode, size_t len) + { +- unsigned long flags; +- char *vaddr; ++ unsigned char *vaddr = ktla_ktva(addr); + struct page *pages[2]; +- int i; ++ size_t i; + + if (!core_kernel_text((unsigned long)addr)) { +- pages[0] = vmalloc_to_page(addr); +- pages[1] = vmalloc_to_page(addr + PAGE_SIZE); ++ pages[0] = vmalloc_to_page(vaddr); ++ pages[1] = vmalloc_to_page(vaddr + PAGE_SIZE); + } else { +- pages[0] = virt_to_page(addr); ++ pages[0] = virt_to_page(vaddr); + WARN_ON(!PageReserved(pages[0])); +- pages[1] = virt_to_page(addr + PAGE_SIZE); ++ pages[1] = virt_to_page(vaddr + PAGE_SIZE); + } + BUG_ON(!pages[0]); +- local_irq_save(flags); +- set_fixmap(FIX_TEXT_POKE0, page_to_phys(pages[0])); +- if (pages[1]) +- set_fixmap(FIX_TEXT_POKE1, page_to_phys(pages[1])); +- vaddr = (char *)fix_to_virt(FIX_TEXT_POKE0); +- memcpy(&vaddr[(unsigned long)addr & ~PAGE_MASK], opcode, len); +- clear_fixmap(FIX_TEXT_POKE0); +- if (pages[1]) +- clear_fixmap(FIX_TEXT_POKE1); +- local_flush_tlb(); +- sync_core(); +- /* Could also do a CLFLUSH here to speed up CPU recovery; but +- that causes hangs on some VIA CPUs. */ ++ text_poke_early(addr, opcode, len); + for (i = 0; i < len; i++) +- BUG_ON(((char *)addr)[i] != ((char *)opcode)[i]); +- local_irq_restore(flags); ++ BUG_ON((vaddr)[i] != ((const unsigned char *)opcode)[i]); + return addr; + } + +diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c +index edc2448..553e7c5 100644 +--- a/arch/x86/kernel/apic/apic.c ++++ b/arch/x86/kernel/apic/apic.c +@@ -184,7 +184,7 @@ int first_system_vector = 0xfe; + /* + * Debug level, exported for io_apic.c + */ +-unsigned int apic_verbosity; ++int apic_verbosity; + + int pic_mode; + +@@ -1917,7 +1917,7 @@ void smp_error_interrupt(struct pt_regs *regs) + apic_write(APIC_ESR, 0); + v1 = apic_read(APIC_ESR); + ack_APIC_irq(); +- atomic_inc(&irq_err_count); ++ atomic_inc_unchecked(&irq_err_count); + + apic_printk(APIC_DEBUG, KERN_DEBUG "APIC error on CPU%d: %02x(%02x)", + smp_processor_id(), v0 , v1); +diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c +index e88300d..cd5a87a 100644 +--- a/arch/x86/kernel/apic/io_apic.c ++++ b/arch/x86/kernel/apic/io_apic.c +@@ -83,7 +83,9 @@ static struct io_apic_ops io_apic_ops = { + + void __init set_io_apic_ops(const struct io_apic_ops *ops) + { +- io_apic_ops = *ops; ++ pax_open_kernel(); ++ memcpy((void*)&io_apic_ops, ops, sizeof io_apic_ops); ++ pax_close_kernel(); + } + + /* +@@ -1135,7 +1137,7 @@ int IO_APIC_get_PCI_irq_vector(int bus, int slot, int pin, + } + EXPORT_SYMBOL(IO_APIC_get_PCI_irq_vector); + +-void lock_vector_lock(void) ++void lock_vector_lock(void) __acquires(vector_lock) + { + /* Used to the online set of cpus does not change + * during assign_irq_vector. +@@ -1143,7 +1145,7 @@ void lock_vector_lock(void) + raw_spin_lock(&vector_lock); + } + +-void unlock_vector_lock(void) ++void unlock_vector_lock(void) __releases(vector_lock) + { + raw_spin_unlock(&vector_lock); + } +@@ -2549,7 +2551,7 @@ static void ack_apic_edge(struct irq_data *data) + ack_APIC_irq(); + } + +-atomic_t irq_mis_count; ++atomic_unchecked_t irq_mis_count; + + #ifdef CONFIG_GENERIC_PENDING_IRQ + static inline bool ioapic_irqd_mask(struct irq_data *data, struct irq_cfg *cfg) +@@ -2667,7 +2669,7 @@ static void ack_apic_level(struct irq_data *data) + * at the cpu. + */ + if (!(v & (1 << (i & 0x1f)))) { +- atomic_inc(&irq_mis_count); ++ atomic_inc_unchecked(&irq_mis_count); + + eoi_ioapic_irq(irq, cfg); + } +diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c +index 459e78c..f037006 100644 +--- a/arch/x86/kernel/apm_32.c ++++ b/arch/x86/kernel/apm_32.c +@@ -410,7 +410,7 @@ static DEFINE_MUTEX(apm_mutex); + * This is for buggy BIOS's that refer to (real mode) segment 0x40 + * even though they are called in protected mode. + */ +-static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092, ++static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093, + (unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1); + + static const char driver_version[] = "1.16ac"; /* no spaces */ +@@ -588,7 +588,10 @@ static long __apm_bios_call(void *_call) + BUG_ON(cpu != 0); + gdt = get_cpu_gdt_table(cpu); + save_desc_40 = gdt[0x40 / 8]; ++ ++ pax_open_kernel(); + gdt[0x40 / 8] = bad_bios_desc; ++ pax_close_kernel(); + + apm_irq_save(flags); + APM_DO_SAVE_SEGS; +@@ -597,7 +600,11 @@ static long __apm_bios_call(void *_call) + &call->esi); + APM_DO_RESTORE_SEGS; + apm_irq_restore(flags); ++ ++ pax_open_kernel(); + gdt[0x40 / 8] = save_desc_40; ++ pax_close_kernel(); ++ + put_cpu(); + + return call->eax & 0xff; +@@ -664,7 +671,10 @@ static long __apm_bios_call_simple(void *_call) + BUG_ON(cpu != 0); + gdt = get_cpu_gdt_table(cpu); + save_desc_40 = gdt[0x40 / 8]; ++ ++ pax_open_kernel(); + gdt[0x40 / 8] = bad_bios_desc; ++ pax_close_kernel(); + + apm_irq_save(flags); + APM_DO_SAVE_SEGS; +@@ -672,7 +682,11 @@ static long __apm_bios_call_simple(void *_call) + &call->eax); + APM_DO_RESTORE_SEGS; + apm_irq_restore(flags); ++ ++ pax_open_kernel(); + gdt[0x40 / 8] = save_desc_40; ++ pax_close_kernel(); ++ + put_cpu(); + return error; + } +@@ -2345,12 +2359,15 @@ static int __init apm_init(void) + * code to that CPU. + */ + gdt = get_cpu_gdt_table(0); ++ ++ pax_open_kernel(); + set_desc_base(&gdt[APM_CS >> 3], + (unsigned long)__va((unsigned long)apm_info.bios.cseg << 4)); + set_desc_base(&gdt[APM_CS_16 >> 3], + (unsigned long)__va((unsigned long)apm_info.bios.cseg_16 << 4)); + set_desc_base(&gdt[APM_DS >> 3], + (unsigned long)__va((unsigned long)apm_info.bios.dseg << 4)); ++ pax_close_kernel(); + + proc_create("apm", 0, NULL, &apm_file_ops); + +diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c +index 68de2dc..1f3c720 100644 +--- a/arch/x86/kernel/asm-offsets.c ++++ b/arch/x86/kernel/asm-offsets.c +@@ -33,6 +33,8 @@ void common(void) { + OFFSET(TI_status, thread_info, status); + OFFSET(TI_addr_limit, thread_info, addr_limit); + OFFSET(TI_preempt_count, thread_info, preempt_count); ++ OFFSET(TI_lowest_stack, thread_info, lowest_stack); ++ DEFINE(TI_task_thread_sp0, offsetof(struct task_struct, thread.sp0) - offsetof(struct task_struct, tinfo)); + + BLANK(); + OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx); +@@ -53,8 +55,26 @@ void common(void) { + OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit); + OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0); + OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2); ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ OFFSET(PV_CPU_write_cr0, pv_cpu_ops, write_cr0); + #endif + ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ OFFSET(PV_MMU_read_cr3, pv_mmu_ops, read_cr3); ++ OFFSET(PV_MMU_write_cr3, pv_mmu_ops, write_cr3); ++#ifdef CONFIG_X86_64 ++ OFFSET(PV_MMU_set_pgd_batched, pv_mmu_ops, set_pgd_batched); ++#endif ++#endif ++ ++#endif ++ ++ BLANK(); ++ DEFINE(PAGE_SIZE_asm, PAGE_SIZE); ++ DEFINE(PAGE_SHIFT_asm, PAGE_SHIFT); ++ DEFINE(THREAD_SIZE_asm, THREAD_SIZE); ++ + #ifdef CONFIG_XEN + BLANK(); + OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask); +diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c +index 1b4754f..fbb4227 100644 +--- a/arch/x86/kernel/asm-offsets_64.c ++++ b/arch/x86/kernel/asm-offsets_64.c +@@ -76,6 +76,7 @@ int main(void) + BLANK(); + #undef ENTRY + ++ DEFINE(TSS_size, sizeof(struct tss_struct)); + OFFSET(TSS_ist, tss_struct, x86_tss.ist); + BLANK(); + +diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile +index 6ab6aa2..8f71507 100644 +--- a/arch/x86/kernel/cpu/Makefile ++++ b/arch/x86/kernel/cpu/Makefile +@@ -8,10 +8,6 @@ CFLAGS_REMOVE_common.o = -pg + CFLAGS_REMOVE_perf_event.o = -pg + endif + +-# Make sure load_percpu_segment has no stackprotector +-nostackp := $(call cc-option, -fno-stack-protector) +-CFLAGS_common.o := $(nostackp) +- + obj-y := intel_cacheinfo.o scattered.o topology.o + obj-y += proc.o capflags.o powerflags.o common.o + obj-y += vmware.o hypervisor.o sched.o mshyperv.o +diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c +index 146bb62..ac9c74a 100644 +--- a/arch/x86/kernel/cpu/amd.c ++++ b/arch/x86/kernel/cpu/amd.c +@@ -691,7 +691,7 @@ static unsigned int __cpuinit amd_size_cache(struct cpuinfo_x86 *c, + unsigned int size) + { + /* AMD errata T13 (order #21922) */ +- if ((c->x86 == 6)) { ++ if (c->x86 == 6) { + /* Duron Rev A0 */ + if (c->x86_model == 3 && c->x86_mask == 0) + size = 64; +diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c +index cf79302..b1b28ae 100644 +--- a/arch/x86/kernel/cpu/common.c ++++ b/arch/x86/kernel/cpu/common.c +@@ -86,60 +86,6 @@ static const struct cpu_dev __cpuinitconst default_cpu = { + + static const struct cpu_dev *this_cpu __cpuinitdata = &default_cpu; + +-DEFINE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page) = { .gdt = { +-#ifdef CONFIG_X86_64 +- /* +- * We need valid kernel segments for data and code in long mode too +- * IRET will check the segment types kkeil 2000/10/28 +- * Also sysret mandates a special GDT layout +- * +- * TLS descriptors are currently at a different place compared to i386. +- * Hopefully nobody expects them at a fixed place (Wine?) +- */ +- [GDT_ENTRY_KERNEL32_CS] = GDT_ENTRY_INIT(0xc09b, 0, 0xfffff), +- [GDT_ENTRY_KERNEL_CS] = GDT_ENTRY_INIT(0xa09b, 0, 0xfffff), +- [GDT_ENTRY_KERNEL_DS] = GDT_ENTRY_INIT(0xc093, 0, 0xfffff), +- [GDT_ENTRY_DEFAULT_USER32_CS] = GDT_ENTRY_INIT(0xc0fb, 0, 0xfffff), +- [GDT_ENTRY_DEFAULT_USER_DS] = GDT_ENTRY_INIT(0xc0f3, 0, 0xfffff), +- [GDT_ENTRY_DEFAULT_USER_CS] = GDT_ENTRY_INIT(0xa0fb, 0, 0xfffff), +-#else +- [GDT_ENTRY_KERNEL_CS] = GDT_ENTRY_INIT(0xc09a, 0, 0xfffff), +- [GDT_ENTRY_KERNEL_DS] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff), +- [GDT_ENTRY_DEFAULT_USER_CS] = GDT_ENTRY_INIT(0xc0fa, 0, 0xfffff), +- [GDT_ENTRY_DEFAULT_USER_DS] = GDT_ENTRY_INIT(0xc0f2, 0, 0xfffff), +- /* +- * Segments used for calling PnP BIOS have byte granularity. +- * They code segments and data segments have fixed 64k limits, +- * the transfer segment sizes are set at run time. +- */ +- /* 32-bit code */ +- [GDT_ENTRY_PNPBIOS_CS32] = GDT_ENTRY_INIT(0x409a, 0, 0xffff), +- /* 16-bit code */ +- [GDT_ENTRY_PNPBIOS_CS16] = GDT_ENTRY_INIT(0x009a, 0, 0xffff), +- /* 16-bit data */ +- [GDT_ENTRY_PNPBIOS_DS] = GDT_ENTRY_INIT(0x0092, 0, 0xffff), +- /* 16-bit data */ +- [GDT_ENTRY_PNPBIOS_TS1] = GDT_ENTRY_INIT(0x0092, 0, 0), +- /* 16-bit data */ +- [GDT_ENTRY_PNPBIOS_TS2] = GDT_ENTRY_INIT(0x0092, 0, 0), +- /* +- * The APM segments have byte granularity and their bases +- * are set at run time. All have 64k limits. +- */ +- /* 32-bit code */ +- [GDT_ENTRY_APMBIOS_BASE] = GDT_ENTRY_INIT(0x409a, 0, 0xffff), +- /* 16-bit code */ +- [GDT_ENTRY_APMBIOS_BASE+1] = GDT_ENTRY_INIT(0x009a, 0, 0xffff), +- /* data */ +- [GDT_ENTRY_APMBIOS_BASE+2] = GDT_ENTRY_INIT(0x4092, 0, 0xffff), +- +- [GDT_ENTRY_ESPFIX_SS] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff), +- [GDT_ENTRY_PERCPU] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff), +- GDT_STACK_CANARY_INIT +-#endif +-} }; +-EXPORT_PER_CPU_SYMBOL_GPL(gdt_page); +- + static int __init x86_xsave_setup(char *s) + { + setup_clear_cpu_cap(X86_FEATURE_XSAVE); +@@ -374,7 +320,7 @@ void switch_to_new_gdt(int cpu) + { + struct desc_ptr gdt_descr; + +- gdt_descr.address = (long)get_cpu_gdt_table(cpu); ++ gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu); + gdt_descr.size = GDT_SIZE - 1; + load_gdt(&gdt_descr); + /* Reload the per-cpu base */ +@@ -841,6 +787,10 @@ static void __cpuinit identify_cpu(struct cpuinfo_x86 *c) + /* Filter out anything that depends on CPUID levels we don't have */ + filter_cpuid_features(c, true); + ++#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)) ++ setup_clear_cpu_cap(X86_FEATURE_SEP); ++#endif ++ + /* If the model name is still unset, do table lookup. */ + if (!c->x86_model_id[0]) { + const char *p; +@@ -1021,10 +971,12 @@ static __init int setup_disablecpuid(char *arg) + } + __setup("clearcpuid=", setup_disablecpuid); + ++DEFINE_PER_CPU(struct thread_info *, current_tinfo) = &init_task.tinfo; ++EXPORT_PER_CPU_SYMBOL(current_tinfo); ++ + #ifdef CONFIG_X86_64 + struct desc_ptr idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) idt_table }; +-struct desc_ptr nmi_idt_descr = { NR_VECTORS * 16 - 1, +- (unsigned long) nmi_idt_table }; ++struct desc_ptr nmi_idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) nmi_idt_table }; + + DEFINE_PER_CPU_FIRST(union irq_stack_union, + irq_stack_union) __aligned(PAGE_SIZE); +@@ -1038,7 +990,7 @@ DEFINE_PER_CPU(struct task_struct *, current_task) ____cacheline_aligned = + EXPORT_PER_CPU_SYMBOL(current_task); + + DEFINE_PER_CPU(unsigned long, kernel_stack) = +- (unsigned long)&init_thread_union - KERNEL_STACK_OFFSET + THREAD_SIZE; ++ (unsigned long)&init_thread_union - 16 + THREAD_SIZE; + EXPORT_PER_CPU_SYMBOL(kernel_stack); + + DEFINE_PER_CPU(char *, irq_stack_ptr) = +@@ -1126,7 +1078,7 @@ struct pt_regs * __cpuinit idle_regs(struct pt_regs *regs) + { + memset(regs, 0, sizeof(struct pt_regs)); + regs->fs = __KERNEL_PERCPU; +- regs->gs = __KERNEL_STACK_CANARY; ++ savesegment(gs, regs->gs); + + return regs; + } +@@ -1181,7 +1133,7 @@ void __cpuinit cpu_init(void) + int i; + + cpu = stack_smp_processor_id(); +- t = &per_cpu(init_tss, cpu); ++ t = init_tss + cpu; + oist = &per_cpu(orig_ist, cpu); + + #ifdef CONFIG_NUMA +@@ -1207,7 +1159,7 @@ void __cpuinit cpu_init(void) + switch_to_new_gdt(cpu); + loadsegment(fs, 0); + +- load_idt((const struct desc_ptr *)&idt_descr); ++ load_idt(&idt_descr); + + memset(me->thread.tls_array, 0, GDT_ENTRY_TLS_ENTRIES * 8); + syscall_init(); +@@ -1216,7 +1168,6 @@ void __cpuinit cpu_init(void) + wrmsrl(MSR_KERNEL_GS_BASE, 0); + barrier(); + +- x86_configure_nx(); + if (cpu != 0) + enable_x2apic(); + +@@ -1272,7 +1223,7 @@ void __cpuinit cpu_init(void) + { + int cpu = smp_processor_id(); + struct task_struct *curr = current; +- struct tss_struct *t = &per_cpu(init_tss, cpu); ++ struct tss_struct *t = init_tss + cpu; + struct thread_struct *thread = &curr->thread; + + if (cpumask_test_and_set_cpu(cpu, cpu_initialized_mask)) { +diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c +index 3e6ff6c..54b4992 100644 +--- a/arch/x86/kernel/cpu/intel.c ++++ b/arch/x86/kernel/cpu/intel.c +@@ -174,7 +174,7 @@ static void __cpuinit trap_init_f00f_bug(void) + * Update the IDT descriptor and reload the IDT so that + * it uses the read-only mapped virtual address. + */ +- idt_descr.address = fix_to_virt(FIX_F00F_IDT); ++ idt_descr.address = (struct desc_struct *)fix_to_virt(FIX_F00F_IDT); + load_idt(&idt_descr); + } + #endif +diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c +index 61604ae..98250a5 100644 +--- a/arch/x86/kernel/cpu/mcheck/mce.c ++++ b/arch/x86/kernel/cpu/mcheck/mce.c +@@ -42,6 +42,7 @@ + #include <asm/processor.h> + #include <asm/mce.h> + #include <asm/msr.h> ++#include <asm/local.h> + + #include "mce-internal.h" + +@@ -250,7 +251,7 @@ static void print_mce(struct mce *m) + !(m->mcgstatus & MCG_STATUS_EIPV) ? " !INEXACT!" : "", + m->cs, m->ip); + +- if (m->cs == __KERNEL_CS) ++ if (m->cs == __KERNEL_CS || m->cs == __KERNEXEC_KERNEL_CS) + print_symbol("{%s}", m->ip); + pr_cont("\n"); + } +@@ -283,10 +284,10 @@ static void print_mce(struct mce *m) + + #define PANIC_TIMEOUT 5 /* 5 seconds */ + +-static atomic_t mce_paniced; ++static atomic_unchecked_t mce_paniced; + + static int fake_panic; +-static atomic_t mce_fake_paniced; ++static atomic_unchecked_t mce_fake_paniced; + + /* Panic in progress. Enable interrupts and wait for final IPI */ + static void wait_for_panic(void) +@@ -310,7 +311,7 @@ static void mce_panic(char *msg, struct mce *final, char *exp) + /* + * Make sure only one CPU runs in machine check panic + */ +- if (atomic_inc_return(&mce_paniced) > 1) ++ if (atomic_inc_return_unchecked(&mce_paniced) > 1) + wait_for_panic(); + barrier(); + +@@ -318,7 +319,7 @@ static void mce_panic(char *msg, struct mce *final, char *exp) + console_verbose(); + } else { + /* Don't log too much for fake panic */ +- if (atomic_inc_return(&mce_fake_paniced) > 1) ++ if (atomic_inc_return_unchecked(&mce_fake_paniced) > 1) + return; + } + /* First print corrected ones that are still unlogged */ +@@ -684,7 +685,7 @@ static int mce_timed_out(u64 *t) + * might have been modified by someone else. + */ + rmb(); +- if (atomic_read(&mce_paniced)) ++ if (atomic_read_unchecked(&mce_paniced)) + wait_for_panic(); + if (!monarch_timeout) + goto out; +@@ -1535,7 +1536,7 @@ static void unexpected_machine_check(struct pt_regs *regs, long error_code) + } + + /* Call the installed machine check handler for this CPU setup. */ +-void (*machine_check_vector)(struct pt_regs *, long error_code) = ++void (*machine_check_vector)(struct pt_regs *, long error_code) __read_only = + unexpected_machine_check; + + /* +@@ -1558,7 +1559,9 @@ void __cpuinit mcheck_cpu_init(struct cpuinfo_x86 *c) + return; + } + ++ pax_open_kernel(); + machine_check_vector = do_machine_check; ++ pax_close_kernel(); + + __mcheck_cpu_init_generic(); + __mcheck_cpu_init_vendor(c); +@@ -1572,7 +1575,7 @@ void __cpuinit mcheck_cpu_init(struct cpuinfo_x86 *c) + */ + + static DEFINE_SPINLOCK(mce_chrdev_state_lock); +-static int mce_chrdev_open_count; /* #times opened */ ++static local_t mce_chrdev_open_count; /* #times opened */ + static int mce_chrdev_open_exclu; /* already open exclusive? */ + + static int mce_chrdev_open(struct inode *inode, struct file *file) +@@ -1580,7 +1583,7 @@ static int mce_chrdev_open(struct inode *inode, struct file *file) + spin_lock(&mce_chrdev_state_lock); + + if (mce_chrdev_open_exclu || +- (mce_chrdev_open_count && (file->f_flags & O_EXCL))) { ++ (local_read(&mce_chrdev_open_count) && (file->f_flags & O_EXCL))) { + spin_unlock(&mce_chrdev_state_lock); + + return -EBUSY; +@@ -1588,7 +1591,7 @@ static int mce_chrdev_open(struct inode *inode, struct file *file) + + if (file->f_flags & O_EXCL) + mce_chrdev_open_exclu = 1; +- mce_chrdev_open_count++; ++ local_inc(&mce_chrdev_open_count); + + spin_unlock(&mce_chrdev_state_lock); + +@@ -1599,7 +1602,7 @@ static int mce_chrdev_release(struct inode *inode, struct file *file) + { + spin_lock(&mce_chrdev_state_lock); + +- mce_chrdev_open_count--; ++ local_dec(&mce_chrdev_open_count); + mce_chrdev_open_exclu = 0; + + spin_unlock(&mce_chrdev_state_lock); +@@ -2324,7 +2327,7 @@ struct dentry *mce_get_debugfs_dir(void) + static void mce_reset(void) + { + cpu_missing = 0; +- atomic_set(&mce_fake_paniced, 0); ++ atomic_set_unchecked(&mce_fake_paniced, 0); + atomic_set(&mce_executing, 0); + atomic_set(&mce_callin, 0); + atomic_set(&global_nwo, 0); +diff --git a/arch/x86/kernel/cpu/mcheck/p5.c b/arch/x86/kernel/cpu/mcheck/p5.c +index 2d5454c..51987eb 100644 +--- a/arch/x86/kernel/cpu/mcheck/p5.c ++++ b/arch/x86/kernel/cpu/mcheck/p5.c +@@ -11,6 +11,7 @@ + #include <asm/processor.h> + #include <asm/mce.h> + #include <asm/msr.h> ++#include <asm/pgtable.h> + + /* By default disabled */ + int mce_p5_enabled __read_mostly; +@@ -49,7 +50,9 @@ void intel_p5_mcheck_init(struct cpuinfo_x86 *c) + if (!cpu_has(c, X86_FEATURE_MCE)) + return; + ++ pax_open_kernel(); + machine_check_vector = pentium_machine_check; ++ pax_close_kernel(); + /* Make sure the vector pointer is visible before we enable MCEs: */ + wmb(); + +diff --git a/arch/x86/kernel/cpu/mcheck/winchip.c b/arch/x86/kernel/cpu/mcheck/winchip.c +index 2d7998f..17c9de1 100644 +--- a/arch/x86/kernel/cpu/mcheck/winchip.c ++++ b/arch/x86/kernel/cpu/mcheck/winchip.c +@@ -10,6 +10,7 @@ + #include <asm/processor.h> + #include <asm/mce.h> + #include <asm/msr.h> ++#include <asm/pgtable.h> + + /* Machine check handler for WinChip C6: */ + static void winchip_machine_check(struct pt_regs *regs, long error_code) +@@ -23,7 +24,9 @@ void winchip_mcheck_init(struct cpuinfo_x86 *c) + { + u32 lo, hi; + ++ pax_open_kernel(); + machine_check_vector = winchip_machine_check; ++ pax_close_kernel(); + /* Make sure the vector pointer is visible before we enable MCEs: */ + wmb(); + +diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c +index 6b96110..0da73eb 100644 +--- a/arch/x86/kernel/cpu/mtrr/main.c ++++ b/arch/x86/kernel/cpu/mtrr/main.c +@@ -62,7 +62,7 @@ static DEFINE_MUTEX(mtrr_mutex); + u64 size_or_mask, size_and_mask; + static bool mtrr_aps_delayed_init; + +-static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM]; ++static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM] __read_only; + + const struct mtrr_ops *mtrr_if; + +diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.h b/arch/x86/kernel/cpu/mtrr/mtrr.h +index df5e41f..816c719 100644 +--- a/arch/x86/kernel/cpu/mtrr/mtrr.h ++++ b/arch/x86/kernel/cpu/mtrr/mtrr.h +@@ -25,7 +25,7 @@ struct mtrr_ops { + int (*validate_add_page)(unsigned long base, unsigned long size, + unsigned int type); + int (*have_wrcomb)(void); +-}; ++} __do_const; + + extern int generic_get_free_region(unsigned long base, unsigned long size, + int replace_reg); +diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c +index bb8e034..fb9020b 100644 +--- a/arch/x86/kernel/cpu/perf_event.c ++++ b/arch/x86/kernel/cpu/perf_event.c +@@ -1835,7 +1835,7 @@ perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs) + break; + + perf_callchain_store(entry, frame.return_address); +- fp = frame.next_frame; ++ fp = (const void __force_user *)frame.next_frame; + } + } + +diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c +index 13ad899..f642b9a 100644 +--- a/arch/x86/kernel/crash.c ++++ b/arch/x86/kernel/crash.c +@@ -36,10 +36,8 @@ static void kdump_nmi_callback(int cpu, struct pt_regs *regs) + { + #ifdef CONFIG_X86_32 + struct pt_regs fixed_regs; +-#endif + +-#ifdef CONFIG_X86_32 +- if (!user_mode_vm(regs)) { ++ if (!user_mode(regs)) { + crash_fixup_ss_esp(&fixed_regs, regs); + regs = &fixed_regs; + } +diff --git a/arch/x86/kernel/doublefault_32.c b/arch/x86/kernel/doublefault_32.c +index 37250fe..bf2ec74 100644 +--- a/arch/x86/kernel/doublefault_32.c ++++ b/arch/x86/kernel/doublefault_32.c +@@ -11,7 +11,7 @@ + + #define DOUBLEFAULT_STACKSIZE (1024) + static unsigned long doublefault_stack[DOUBLEFAULT_STACKSIZE]; +-#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE) ++#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE-2) + + #define ptr_ok(x) ((x) > PAGE_OFFSET && (x) < PAGE_OFFSET + MAXMEM) + +@@ -21,7 +21,7 @@ static void doublefault_fn(void) + unsigned long gdt, tss; + + store_gdt(&gdt_desc); +- gdt = gdt_desc.address; ++ gdt = (unsigned long)gdt_desc.address; + + printk(KERN_EMERG "PANIC: double fault, gdt at %08lx [%d bytes]\n", gdt, gdt_desc.size); + +@@ -58,10 +58,10 @@ struct tss_struct doublefault_tss __cacheline_aligned = { + /* 0x2 bit is always set */ + .flags = X86_EFLAGS_SF | 0x2, + .sp = STACK_START, +- .es = __USER_DS, ++ .es = __KERNEL_DS, + .cs = __KERNEL_CS, + .ss = __KERNEL_DS, +- .ds = __USER_DS, ++ .ds = __KERNEL_DS, + .fs = __KERNEL_PERCPU, + + .__cr3 = __pa_nodebug(swapper_pg_dir), +diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c +index 1b81839..0b4e7b0 100644 +--- a/arch/x86/kernel/dumpstack.c ++++ b/arch/x86/kernel/dumpstack.c +@@ -2,6 +2,9 @@ + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs + */ ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++#define __INCLUDED_BY_HIDESYM 1 ++#endif + #include <linux/kallsyms.h> + #include <linux/kprobes.h> + #include <linux/uaccess.h> +@@ -35,16 +38,14 @@ void printk_address(unsigned long address, int reliable) + static void + print_ftrace_graph_addr(unsigned long addr, void *data, + const struct stacktrace_ops *ops, +- struct thread_info *tinfo, int *graph) ++ struct task_struct *task, int *graph) + { +- struct task_struct *task; + unsigned long ret_addr; + int index; + + if (addr != (unsigned long)return_to_handler) + return; + +- task = tinfo->task; + index = task->curr_ret_stack; + + if (!task->ret_stack || index < *graph) +@@ -61,7 +62,7 @@ print_ftrace_graph_addr(unsigned long addr, void *data, + static inline void + print_ftrace_graph_addr(unsigned long addr, void *data, + const struct stacktrace_ops *ops, +- struct thread_info *tinfo, int *graph) ++ struct task_struct *task, int *graph) + { } + #endif + +@@ -72,10 +73,8 @@ print_ftrace_graph_addr(unsigned long addr, void *data, + * severe exception (double fault, nmi, stack fault, debug, mce) hardware stack + */ + +-static inline int valid_stack_ptr(struct thread_info *tinfo, +- void *p, unsigned int size, void *end) ++static inline int valid_stack_ptr(void *t, void *p, unsigned int size, void *end) + { +- void *t = tinfo; + if (end) { + if (p < end && p >= (end-THREAD_SIZE)) + return 1; +@@ -86,14 +85,14 @@ static inline int valid_stack_ptr(struct thread_info *tinfo, + } + + unsigned long +-print_context_stack(struct thread_info *tinfo, ++print_context_stack(struct task_struct *task, void *stack_start, + unsigned long *stack, unsigned long bp, + const struct stacktrace_ops *ops, void *data, + unsigned long *end, int *graph) + { + struct stack_frame *frame = (struct stack_frame *)bp; + +- while (valid_stack_ptr(tinfo, stack, sizeof(*stack), end)) { ++ while (valid_stack_ptr(stack_start, stack, sizeof(*stack), end)) { + unsigned long addr; + + addr = *stack; +@@ -105,7 +104,7 @@ print_context_stack(struct thread_info *tinfo, + } else { + ops->address(data, addr, 0); + } +- print_ftrace_graph_addr(addr, data, ops, tinfo, graph); ++ print_ftrace_graph_addr(addr, data, ops, task, graph); + } + stack++; + } +@@ -114,7 +113,7 @@ print_context_stack(struct thread_info *tinfo, + EXPORT_SYMBOL_GPL(print_context_stack); + + unsigned long +-print_context_stack_bp(struct thread_info *tinfo, ++print_context_stack_bp(struct task_struct *task, void *stack_start, + unsigned long *stack, unsigned long bp, + const struct stacktrace_ops *ops, void *data, + unsigned long *end, int *graph) +@@ -122,7 +121,7 @@ print_context_stack_bp(struct thread_info *tinfo, + struct stack_frame *frame = (struct stack_frame *)bp; + unsigned long *ret_addr = &frame->return_address; + +- while (valid_stack_ptr(tinfo, ret_addr, sizeof(*ret_addr), end)) { ++ while (valid_stack_ptr(stack_start, ret_addr, sizeof(*ret_addr), end)) { + unsigned long addr = *ret_addr; + + if (!__kernel_text_address(addr)) +@@ -131,7 +130,7 @@ print_context_stack_bp(struct thread_info *tinfo, + ops->address(data, addr, 1); + frame = frame->next_frame; + ret_addr = &frame->return_address; +- print_ftrace_graph_addr(addr, data, ops, tinfo, graph); ++ print_ftrace_graph_addr(addr, data, ops, task, graph); + } + + return (unsigned long)frame; +@@ -189,7 +188,7 @@ void dump_stack(void) + + bp = stack_frame(current, NULL); + printk("Pid: %d, comm: %.20s %s %s %.*s\n", +- current->pid, current->comm, print_tainted(), ++ task_pid_nr(current), current->comm, print_tainted(), + init_utsname()->release, + (int)strcspn(init_utsname()->version, " "), + init_utsname()->version); +@@ -225,6 +224,8 @@ unsigned __kprobes long oops_begin(void) + } + EXPORT_SYMBOL_GPL(oops_begin); + ++extern void gr_handle_kernel_exploit(void); ++ + void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr) + { + if (regs && kexec_should_crash(current)) +@@ -246,7 +247,10 @@ void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr) + panic("Fatal exception in interrupt"); + if (panic_on_oops) + panic("Fatal exception"); +- do_exit(signr); ++ ++ gr_handle_kernel_exploit(); ++ ++ do_group_exit(signr); + } + + int __kprobes __die(const char *str, struct pt_regs *regs, long err) +@@ -273,7 +277,7 @@ int __kprobes __die(const char *str, struct pt_regs *regs, long err) + + show_registers(regs); + #ifdef CONFIG_X86_32 +- if (user_mode_vm(regs)) { ++ if (user_mode(regs)) { + sp = regs->sp; + ss = regs->ss & 0xffff; + } else { +@@ -301,7 +305,7 @@ void die(const char *str, struct pt_regs *regs, long err) + unsigned long flags = oops_begin(); + int sig = SIGSEGV; + +- if (!user_mode_vm(regs)) ++ if (!user_mode(regs)) + report_bug(regs->ip, regs); + + if (__die(str, regs, err)) +diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c +index 88ec912..e95e935 100644 +--- a/arch/x86/kernel/dumpstack_32.c ++++ b/arch/x86/kernel/dumpstack_32.c +@@ -38,15 +38,13 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, + bp = stack_frame(task, regs); + + for (;;) { +- struct thread_info *context; ++ void *stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1)); + +- context = (struct thread_info *) +- ((unsigned long)stack & (~(THREAD_SIZE - 1))); +- bp = ops->walk_stack(context, stack, bp, ops, data, NULL, &graph); ++ bp = ops->walk_stack(task, stack_start, stack, bp, ops, data, NULL, &graph); + +- stack = (unsigned long *)context->previous_esp; +- if (!stack) ++ if (stack_start == task_stack_page(task)) + break; ++ stack = *(unsigned long **)stack_start; + if (ops->stack(data, "IRQ") < 0) + break; + touch_nmi_watchdog(); +@@ -87,7 +85,7 @@ void show_registers(struct pt_regs *regs) + int i; + + print_modules(); +- __show_regs(regs, !user_mode_vm(regs)); ++ __show_regs(regs, !user_mode(regs)); + + printk(KERN_EMERG "Process %.*s (pid: %d, ti=%p task=%p task.ti=%p)\n", + TASK_COMM_LEN, current->comm, task_pid_nr(current), +@@ -96,21 +94,22 @@ void show_registers(struct pt_regs *regs) + * When in-kernel, we also print out the stack and code at the + * time of the fault.. + */ +- if (!user_mode_vm(regs)) { ++ if (!user_mode(regs)) { + unsigned int code_prologue = code_bytes * 43 / 64; + unsigned int code_len = code_bytes; + unsigned char c; + u8 *ip; ++ unsigned long cs_base = get_desc_base(&get_cpu_gdt_table(smp_processor_id())[(0xffff & regs->cs) >> 3]); + + printk(KERN_EMERG "Stack:\n"); + show_stack_log_lvl(NULL, regs, &regs->sp, 0, KERN_EMERG); + + printk(KERN_EMERG "Code: "); + +- ip = (u8 *)regs->ip - code_prologue; ++ ip = (u8 *)regs->ip - code_prologue + cs_base; + if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) { + /* try starting at IP */ +- ip = (u8 *)regs->ip; ++ ip = (u8 *)regs->ip + cs_base; + code_len = code_len - code_prologue + 1; + } + for (i = 0; i < code_len; i++, ip++) { +@@ -119,7 +118,7 @@ void show_registers(struct pt_regs *regs) + printk(KERN_CONT " Bad EIP value."); + break; + } +- if (ip == (u8 *)regs->ip) ++ if (ip == (u8 *)regs->ip + cs_base) + printk(KERN_CONT "<%02x> ", c); + else + printk(KERN_CONT "%02x ", c); +@@ -132,6 +131,7 @@ int is_valid_bugaddr(unsigned long ip) + { + unsigned short ud2; + ++ ip = ktla_ktva(ip); + if (ip < PAGE_OFFSET) + return 0; + if (probe_kernel_address((unsigned short *)ip, ud2)) +@@ -139,3 +139,15 @@ int is_valid_bugaddr(unsigned long ip) + + return ud2 == 0x0b0f; + } ++ ++#ifdef CONFIG_PAX_MEMORY_STACKLEAK ++void pax_check_alloca(unsigned long size) ++{ ++ unsigned long sp = (unsigned long)&sp, stack_left; ++ ++ /* all kernel stacks are of the same size */ ++ stack_left = sp & (THREAD_SIZE - 1); ++ BUG_ON(stack_left < 256 || size >= stack_left - 256); ++} ++EXPORT_SYMBOL(pax_check_alloca); ++#endif +diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c +index 17107bd..9623722 100644 +--- a/arch/x86/kernel/dumpstack_64.c ++++ b/arch/x86/kernel/dumpstack_64.c +@@ -119,9 +119,9 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, + unsigned long *irq_stack_end = + (unsigned long *)per_cpu(irq_stack_ptr, cpu); + unsigned used = 0; +- struct thread_info *tinfo; + int graph = 0; + unsigned long dummy; ++ void *stack_start; + + if (!task) + task = current; +@@ -142,10 +142,10 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, + * current stack address. If the stacks consist of nested + * exceptions + */ +- tinfo = task_thread_info(task); + for (;;) { + char *id; + unsigned long *estack_end; ++ + estack_end = in_exception_stack(cpu, (unsigned long)stack, + &used, &id); + +@@ -153,7 +153,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, + if (ops->stack(data, id) < 0) + break; + +- bp = ops->walk_stack(tinfo, stack, bp, ops, ++ bp = ops->walk_stack(task, estack_end - EXCEPTION_STKSZ, stack, bp, ops, + data, estack_end, &graph); + ops->stack(data, "<EOE>"); + /* +@@ -161,6 +161,8 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, + * second-to-last pointer (index -2 to end) in the + * exception stack: + */ ++ if ((u16)estack_end[-1] != __KERNEL_DS) ++ goto out; + stack = (unsigned long *) estack_end[-2]; + continue; + } +@@ -172,7 +174,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, + if (in_irq_stack(stack, irq_stack, irq_stack_end)) { + if (ops->stack(data, "IRQ") < 0) + break; +- bp = ops->walk_stack(tinfo, stack, bp, ++ bp = ops->walk_stack(task, irq_stack, stack, bp, + ops, data, irq_stack_end, &graph); + /* + * We link to the next stack (which would be +@@ -191,7 +193,9 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, + /* + * This handles the process stack: + */ +- bp = ops->walk_stack(tinfo, stack, bp, ops, data, NULL, &graph); ++ stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1)); ++ bp = ops->walk_stack(task, stack_start, stack, bp, ops, data, NULL, &graph); ++out: + put_cpu(); + } + EXPORT_SYMBOL(dump_trace); +@@ -305,3 +309,50 @@ int is_valid_bugaddr(unsigned long ip) + + return ud2 == 0x0b0f; + } ++ ++#ifdef CONFIG_PAX_MEMORY_STACKLEAK ++void pax_check_alloca(unsigned long size) ++{ ++ unsigned long sp = (unsigned long)&sp, stack_start, stack_end; ++ unsigned cpu, used; ++ char *id; ++ ++ /* check the process stack first */ ++ stack_start = (unsigned long)task_stack_page(current); ++ stack_end = stack_start + THREAD_SIZE; ++ if (likely(stack_start <= sp && sp < stack_end)) { ++ unsigned long stack_left = sp & (THREAD_SIZE - 1); ++ BUG_ON(stack_left < 256 || size >= stack_left - 256); ++ return; ++ } ++ ++ cpu = get_cpu(); ++ ++ /* check the irq stacks */ ++ stack_end = (unsigned long)per_cpu(irq_stack_ptr, cpu); ++ stack_start = stack_end - IRQ_STACK_SIZE; ++ if (stack_start <= sp && sp < stack_end) { ++ unsigned long stack_left = sp & (IRQ_STACK_SIZE - 1); ++ put_cpu(); ++ BUG_ON(stack_left < 256 || size >= stack_left - 256); ++ return; ++ } ++ ++ /* check the exception stacks */ ++ used = 0; ++ stack_end = (unsigned long)in_exception_stack(cpu, sp, &used, &id); ++ stack_start = stack_end - EXCEPTION_STKSZ; ++ if (stack_end && stack_start <= sp && sp < stack_end) { ++ unsigned long stack_left = sp & (EXCEPTION_STKSZ - 1); ++ put_cpu(); ++ BUG_ON(stack_left < 256 || size >= stack_left - 256); ++ return; ++ } ++ ++ put_cpu(); ++ ++ /* unknown stack */ ++ BUG(); ++} ++EXPORT_SYMBOL(pax_check_alloca); ++#endif +diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c +index 9b9f18b..9fcaa04 100644 +--- a/arch/x86/kernel/early_printk.c ++++ b/arch/x86/kernel/early_printk.c +@@ -7,6 +7,7 @@ + #include <linux/pci_regs.h> + #include <linux/pci_ids.h> + #include <linux/errno.h> ++#include <linux/sched.h> + #include <asm/io.h> + #include <asm/processor.h> + #include <asm/fcntl.h> +diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S +index 7b784f4..db6b628 100644 +--- a/arch/x86/kernel/entry_32.S ++++ b/arch/x86/kernel/entry_32.S +@@ -179,13 +179,146 @@ + /*CFI_REL_OFFSET gs, PT_GS*/ + .endm + .macro SET_KERNEL_GS reg ++ ++#ifdef CONFIG_CC_STACKPROTECTOR + movl $(__KERNEL_STACK_CANARY), \reg ++#elif defined(CONFIG_PAX_MEMORY_UDEREF) ++ movl $(__USER_DS), \reg ++#else ++ xorl \reg, \reg ++#endif ++ + movl \reg, %gs + .endm + + #endif /* CONFIG_X86_32_LAZY_GS */ + +-.macro SAVE_ALL ++.macro pax_enter_kernel ++#ifdef CONFIG_PAX_KERNEXEC ++ call pax_enter_kernel ++#endif ++.endm ++ ++.macro pax_exit_kernel ++#ifdef CONFIG_PAX_KERNEXEC ++ call pax_exit_kernel ++#endif ++.endm ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ENTRY(pax_enter_kernel) ++#ifdef CONFIG_PARAVIRT ++ pushl %eax ++ pushl %ecx ++ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0) ++ mov %eax, %esi ++#else ++ mov %cr0, %esi ++#endif ++ bts $16, %esi ++ jnc 1f ++ mov %cs, %esi ++ cmp $__KERNEL_CS, %esi ++ jz 3f ++ ljmp $__KERNEL_CS, $3f ++1: ljmp $__KERNEXEC_KERNEL_CS, $2f ++2: ++#ifdef CONFIG_PARAVIRT ++ mov %esi, %eax ++ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0) ++#else ++ mov %esi, %cr0 ++#endif ++3: ++#ifdef CONFIG_PARAVIRT ++ popl %ecx ++ popl %eax ++#endif ++ ret ++ENDPROC(pax_enter_kernel) ++ ++ENTRY(pax_exit_kernel) ++#ifdef CONFIG_PARAVIRT ++ pushl %eax ++ pushl %ecx ++#endif ++ mov %cs, %esi ++ cmp $__KERNEXEC_KERNEL_CS, %esi ++ jnz 2f ++#ifdef CONFIG_PARAVIRT ++ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0); ++ mov %eax, %esi ++#else ++ mov %cr0, %esi ++#endif ++ btr $16, %esi ++ ljmp $__KERNEL_CS, $1f ++1: ++#ifdef CONFIG_PARAVIRT ++ mov %esi, %eax ++ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0); ++#else ++ mov %esi, %cr0 ++#endif ++2: ++#ifdef CONFIG_PARAVIRT ++ popl %ecx ++ popl %eax ++#endif ++ ret ++ENDPROC(pax_exit_kernel) ++#endif ++ ++.macro pax_erase_kstack ++#ifdef CONFIG_PAX_MEMORY_STACKLEAK ++ call pax_erase_kstack ++#endif ++.endm ++ ++#ifdef CONFIG_PAX_MEMORY_STACKLEAK ++/* ++ * ebp: thread_info ++ * ecx, edx: can be clobbered ++ */ ++ENTRY(pax_erase_kstack) ++ pushl %edi ++ pushl %eax ++ ++ mov TI_lowest_stack(%ebp), %edi ++ mov $-0xBEEF, %eax ++ std ++ ++1: mov %edi, %ecx ++ and $THREAD_SIZE_asm - 1, %ecx ++ shr $2, %ecx ++ repne scasl ++ jecxz 2f ++ ++ cmp $2*16, %ecx ++ jc 2f ++ ++ mov $2*16, %ecx ++ repe scasl ++ jecxz 2f ++ jne 1b ++ ++2: cld ++ mov %esp, %ecx ++ sub %edi, %ecx ++ shr $2, %ecx ++ rep stosl ++ ++ mov TI_task_thread_sp0(%ebp), %edi ++ sub $128, %edi ++ mov %edi, TI_lowest_stack(%ebp) ++ ++ popl %eax ++ popl %edi ++ ret ++ENDPROC(pax_erase_kstack) ++#endif ++ ++.macro __SAVE_ALL _DS + cld + PUSH_GS + pushl_cfi %fs +@@ -208,7 +341,7 @@ + CFI_REL_OFFSET ecx, 0 + pushl_cfi %ebx + CFI_REL_OFFSET ebx, 0 +- movl $(__USER_DS), %edx ++ movl $\_DS, %edx + movl %edx, %ds + movl %edx, %es + movl $(__KERNEL_PERCPU), %edx +@@ -216,6 +349,15 @@ + SET_KERNEL_GS %edx + .endm + ++.macro SAVE_ALL ++#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF) ++ __SAVE_ALL __KERNEL_DS ++ pax_enter_kernel ++#else ++ __SAVE_ALL __USER_DS ++#endif ++.endm ++ + .macro RESTORE_INT_REGS + popl_cfi %ebx + CFI_RESTORE ebx +@@ -301,7 +443,7 @@ ENTRY(ret_from_fork) + popfl_cfi + jmp syscall_exit + CFI_ENDPROC +-END(ret_from_fork) ++ENDPROC(ret_from_fork) + + /* + * Interrupt exit functions should be protected against kprobes +@@ -335,7 +477,15 @@ resume_userspace_sig: + andl $SEGMENT_RPL_MASK, %eax + #endif + cmpl $USER_RPL, %eax ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ jae resume_userspace ++ ++ pax_exit_kernel ++ jmp resume_kernel ++#else + jb resume_kernel # not returning to v8086 or userspace ++#endif + + ENTRY(resume_userspace) + LOCKDEP_SYS_EXIT +@@ -347,8 +497,8 @@ ENTRY(resume_userspace) + andl $_TIF_WORK_MASK, %ecx # is there any work to be done on + # int/exception return? + jne work_pending +- jmp restore_all +-END(ret_from_exception) ++ jmp restore_all_pax ++ENDPROC(ret_from_exception) + + #ifdef CONFIG_PREEMPT + ENTRY(resume_kernel) +@@ -363,7 +513,7 @@ need_resched: + jz restore_all + call preempt_schedule_irq + jmp need_resched +-END(resume_kernel) ++ENDPROC(resume_kernel) + #endif + CFI_ENDPROC + /* +@@ -397,23 +547,34 @@ sysenter_past_esp: + /*CFI_REL_OFFSET cs, 0*/ + /* + * Push current_thread_info()->sysenter_return to the stack. +- * A tiny bit of offset fixup is necessary - 4*4 means the 4 words +- * pushed above; +8 corresponds to copy_thread's esp0 setting. + */ +- pushl_cfi ((TI_sysenter_return)-THREAD_SIZE+8+4*4)(%esp) ++ pushl_cfi $0 + CFI_REL_OFFSET eip, 0 + + pushl_cfi %eax + SAVE_ALL ++ GET_THREAD_INFO(%ebp) ++ movl TI_sysenter_return(%ebp),%ebp ++ movl %ebp,PT_EIP(%esp) + ENABLE_INTERRUPTS(CLBR_NONE) + + /* + * Load the potential sixth argument from user stack. + * Careful about security. + */ ++ movl PT_OLDESP(%esp),%ebp ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ mov PT_OLDSS(%esp),%ds ++1: movl %ds:(%ebp),%ebp ++ push %ss ++ pop %ds ++#else + cmpl $__PAGE_OFFSET-3,%ebp + jae syscall_fault + 1: movl (%ebp),%ebp ++#endif ++ + movl %ebp,PT_EBP(%esp) + .section __ex_table,"a" + .align 4 +@@ -436,12 +597,24 @@ sysenter_do_call: + testl $_TIF_ALLWORK_MASK, %ecx + jne sysexit_audit + sysenter_exit: ++ ++#ifdef CONFIG_PAX_RANDKSTACK ++ pushl_cfi %eax ++ movl %esp, %eax ++ call pax_randomize_kstack ++ popl_cfi %eax ++#endif ++ ++ pax_erase_kstack ++ + /* if something modifies registers it must also disable sysexit */ + movl PT_EIP(%esp), %edx + movl PT_OLDESP(%esp), %ecx + xorl %ebp,%ebp + TRACE_IRQS_ON + 1: mov PT_FS(%esp), %fs ++2: mov PT_DS(%esp), %ds ++3: mov PT_ES(%esp), %es + PTGS_TO_GS + ENABLE_INTERRUPTS_SYSEXIT + +@@ -458,6 +631,9 @@ sysenter_audit: + movl %eax,%edx /* 2nd arg: syscall number */ + movl $AUDIT_ARCH_I386,%eax /* 1st arg: audit arch */ + call __audit_syscall_entry ++ ++ pax_erase_kstack ++ + pushl_cfi %ebx + movl PT_EAX(%esp),%eax /* reload syscall number */ + jmp sysenter_do_call +@@ -483,11 +659,17 @@ sysexit_audit: + + CFI_ENDPROC + .pushsection .fixup,"ax" +-2: movl $0,PT_FS(%esp) ++4: movl $0,PT_FS(%esp) ++ jmp 1b ++5: movl $0,PT_DS(%esp) ++ jmp 1b ++6: movl $0,PT_ES(%esp) + jmp 1b + .section __ex_table,"a" + .align 4 +- .long 1b,2b ++ .long 1b,4b ++ .long 2b,5b ++ .long 3b,6b + .popsection + PTGS_TO_GS_EX + ENDPROC(ia32_sysenter_target) +@@ -520,6 +702,15 @@ syscall_exit: + testl $_TIF_ALLWORK_MASK, %ecx # current->work + jne syscall_exit_work + ++restore_all_pax: ++ ++#ifdef CONFIG_PAX_RANDKSTACK ++ movl %esp, %eax ++ call pax_randomize_kstack ++#endif ++ ++ pax_erase_kstack ++ + restore_all: + TRACE_IRQS_IRET + restore_all_notrace: +@@ -579,14 +770,34 @@ ldt_ss: + * compensating for the offset by changing to the ESPFIX segment with + * a base address that matches for the difference. + */ +-#define GDT_ESPFIX_SS PER_CPU_VAR(gdt_page) + (GDT_ENTRY_ESPFIX_SS * 8) ++#define GDT_ESPFIX_SS (GDT_ENTRY_ESPFIX_SS * 8)(%ebx) + mov %esp, %edx /* load kernel esp */ + mov PT_OLDESP(%esp), %eax /* load userspace esp */ + mov %dx, %ax /* eax: new kernel esp */ + sub %eax, %edx /* offset (low word is 0) */ ++#ifdef CONFIG_SMP ++ movl PER_CPU_VAR(cpu_number), %ebx ++ shll $PAGE_SHIFT_asm, %ebx ++ addl $cpu_gdt_table, %ebx ++#else ++ movl $cpu_gdt_table, %ebx ++#endif + shr $16, %edx +- mov %dl, GDT_ESPFIX_SS + 4 /* bits 16..23 */ +- mov %dh, GDT_ESPFIX_SS + 7 /* bits 24..31 */ ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ mov %cr0, %esi ++ btr $16, %esi ++ mov %esi, %cr0 ++#endif ++ ++ mov %dl, 4 + GDT_ESPFIX_SS /* bits 16..23 */ ++ mov %dh, 7 + GDT_ESPFIX_SS /* bits 24..31 */ ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ bts $16, %esi ++ mov %esi, %cr0 ++#endif ++ + pushl_cfi $__ESPFIX_SS + pushl_cfi %eax /* new kernel esp */ + /* Disable interrupts, but do not irqtrace this section: we +@@ -615,38 +826,30 @@ work_resched: + movl TI_flags(%ebp), %ecx + andl $_TIF_WORK_MASK, %ecx # is there any work to be done other + # than syscall tracing? +- jz restore_all ++ jz restore_all_pax + testb $_TIF_NEED_RESCHED, %cl + jnz work_resched + + work_notifysig: # deal with pending signals and + # notify-resume requests ++ movl %esp, %eax + #ifdef CONFIG_VM86 + testl $X86_EFLAGS_VM, PT_EFLAGS(%esp) +- movl %esp, %eax +- jne work_notifysig_v86 # returning to kernel-space or ++ jz 1f # returning to kernel-space or + # vm86-space +- TRACE_IRQS_ON +- ENABLE_INTERRUPTS(CLBR_NONE) +- xorl %edx, %edx +- call do_notify_resume +- jmp resume_userspace_sig + +- ALIGN +-work_notifysig_v86: + pushl_cfi %ecx # save ti_flags for do_notify_resume + call save_v86_state # %eax contains pt_regs pointer + popl_cfi %ecx + movl %eax, %esp +-#else +- movl %esp, %eax ++1: + #endif + TRACE_IRQS_ON + ENABLE_INTERRUPTS(CLBR_NONE) + xorl %edx, %edx + call do_notify_resume + jmp resume_userspace_sig +-END(work_pending) ++ENDPROC(work_pending) + + # perform syscall exit tracing + ALIGN +@@ -654,11 +857,14 @@ syscall_trace_entry: + movl $-ENOSYS,PT_EAX(%esp) + movl %esp, %eax + call syscall_trace_enter ++ ++ pax_erase_kstack ++ + /* What it returned is what we'll actually use. */ + cmpl $(NR_syscalls), %eax + jnae syscall_call + jmp syscall_exit +-END(syscall_trace_entry) ++ENDPROC(syscall_trace_entry) + + # perform syscall exit tracing + ALIGN +@@ -671,20 +877,24 @@ syscall_exit_work: + movl %esp, %eax + call syscall_trace_leave + jmp resume_userspace +-END(syscall_exit_work) ++ENDPROC(syscall_exit_work) + CFI_ENDPROC + + RING0_INT_FRAME # can't unwind into user space anyway + syscall_fault: ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ push %ss ++ pop %ds ++#endif + GET_THREAD_INFO(%ebp) + movl $-EFAULT,PT_EAX(%esp) + jmp resume_userspace +-END(syscall_fault) ++ENDPROC(syscall_fault) + + syscall_badsys: + movl $-ENOSYS,PT_EAX(%esp) + jmp resume_userspace +-END(syscall_badsys) ++ENDPROC(syscall_badsys) + CFI_ENDPROC + /* + * End of kprobes section +@@ -756,6 +966,36 @@ ENTRY(ptregs_clone) + CFI_ENDPROC + ENDPROC(ptregs_clone) + ++ ALIGN; ++ENTRY(kernel_execve) ++ CFI_STARTPROC ++ pushl_cfi %ebp ++ sub $PT_OLDSS+4,%esp ++ pushl_cfi %edi ++ pushl_cfi %ecx ++ pushl_cfi %eax ++ lea 3*4(%esp),%edi ++ mov $PT_OLDSS/4+1,%ecx ++ xorl %eax,%eax ++ rep stosl ++ popl_cfi %eax ++ popl_cfi %ecx ++ popl_cfi %edi ++ movl $X86_EFLAGS_IF,PT_EFLAGS(%esp) ++ pushl_cfi %esp ++ call sys_execve ++ add $4,%esp ++ CFI_ADJUST_CFA_OFFSET -4 ++ GET_THREAD_INFO(%ebp) ++ test %eax,%eax ++ jz syscall_exit ++ add $PT_OLDSS+4,%esp ++ CFI_ADJUST_CFA_OFFSET -PT_OLDSS-4 ++ popl_cfi %ebp ++ ret ++ CFI_ENDPROC ++ENDPROC(kernel_execve) ++ + .macro FIXUP_ESPFIX_STACK + /* + * Switch back for ESPFIX stack to the normal zerobased stack +@@ -765,8 +1005,15 @@ ENDPROC(ptregs_clone) + * normal stack and adjusts ESP with the matching offset. + */ + /* fixup the stack */ +- mov GDT_ESPFIX_SS + 4, %al /* bits 16..23 */ +- mov GDT_ESPFIX_SS + 7, %ah /* bits 24..31 */ ++#ifdef CONFIG_SMP ++ movl PER_CPU_VAR(cpu_number), %ebx ++ shll $PAGE_SHIFT_asm, %ebx ++ addl $cpu_gdt_table, %ebx ++#else ++ movl $cpu_gdt_table, %ebx ++#endif ++ mov 4 + GDT_ESPFIX_SS, %al /* bits 16..23 */ ++ mov 7 + GDT_ESPFIX_SS, %ah /* bits 24..31 */ + shl $16, %eax + addl %esp, %eax /* the adjusted stack pointer */ + pushl_cfi $__KERNEL_DS +@@ -819,7 +1066,7 @@ vector=vector+1 + .endr + 2: jmp common_interrupt + .endr +-END(irq_entries_start) ++ENDPROC(irq_entries_start) + + .previous + END(interrupt) +@@ -867,7 +1114,7 @@ ENTRY(coprocessor_error) + pushl_cfi $do_coprocessor_error + jmp error_code + CFI_ENDPROC +-END(coprocessor_error) ++ENDPROC(coprocessor_error) + + ENTRY(simd_coprocessor_error) + RING0_INT_FRAME +@@ -888,7 +1135,7 @@ ENTRY(simd_coprocessor_error) + #endif + jmp error_code + CFI_ENDPROC +-END(simd_coprocessor_error) ++ENDPROC(simd_coprocessor_error) + + ENTRY(device_not_available) + RING0_INT_FRAME +@@ -896,7 +1143,7 @@ ENTRY(device_not_available) + pushl_cfi $do_device_not_available + jmp error_code + CFI_ENDPROC +-END(device_not_available) ++ENDPROC(device_not_available) + + #ifdef CONFIG_PARAVIRT + ENTRY(native_iret) +@@ -905,12 +1152,12 @@ ENTRY(native_iret) + .align 4 + .long native_iret, iret_exc + .previous +-END(native_iret) ++ENDPROC(native_iret) + + ENTRY(native_irq_enable_sysexit) + sti + sysexit +-END(native_irq_enable_sysexit) ++ENDPROC(native_irq_enable_sysexit) + #endif + + ENTRY(overflow) +@@ -919,7 +1166,7 @@ ENTRY(overflow) + pushl_cfi $do_overflow + jmp error_code + CFI_ENDPROC +-END(overflow) ++ENDPROC(overflow) + + ENTRY(bounds) + RING0_INT_FRAME +@@ -927,7 +1174,7 @@ ENTRY(bounds) + pushl_cfi $do_bounds + jmp error_code + CFI_ENDPROC +-END(bounds) ++ENDPROC(bounds) + + ENTRY(invalid_op) + RING0_INT_FRAME +@@ -935,7 +1182,7 @@ ENTRY(invalid_op) + pushl_cfi $do_invalid_op + jmp error_code + CFI_ENDPROC +-END(invalid_op) ++ENDPROC(invalid_op) + + ENTRY(coprocessor_segment_overrun) + RING0_INT_FRAME +@@ -943,35 +1190,35 @@ ENTRY(coprocessor_segment_overrun) + pushl_cfi $do_coprocessor_segment_overrun + jmp error_code + CFI_ENDPROC +-END(coprocessor_segment_overrun) ++ENDPROC(coprocessor_segment_overrun) + + ENTRY(invalid_TSS) + RING0_EC_FRAME + pushl_cfi $do_invalid_TSS + jmp error_code + CFI_ENDPROC +-END(invalid_TSS) ++ENDPROC(invalid_TSS) + + ENTRY(segment_not_present) + RING0_EC_FRAME + pushl_cfi $do_segment_not_present + jmp error_code + CFI_ENDPROC +-END(segment_not_present) ++ENDPROC(segment_not_present) + + ENTRY(stack_segment) + RING0_EC_FRAME + pushl_cfi $do_stack_segment + jmp error_code + CFI_ENDPROC +-END(stack_segment) ++ENDPROC(stack_segment) + + ENTRY(alignment_check) + RING0_EC_FRAME + pushl_cfi $do_alignment_check + jmp error_code + CFI_ENDPROC +-END(alignment_check) ++ENDPROC(alignment_check) + + ENTRY(divide_error) + RING0_INT_FRAME +@@ -979,7 +1226,7 @@ ENTRY(divide_error) + pushl_cfi $do_divide_error + jmp error_code + CFI_ENDPROC +-END(divide_error) ++ENDPROC(divide_error) + + #ifdef CONFIG_X86_MCE + ENTRY(machine_check) +@@ -988,7 +1235,7 @@ ENTRY(machine_check) + pushl_cfi machine_check_vector + jmp error_code + CFI_ENDPROC +-END(machine_check) ++ENDPROC(machine_check) + #endif + + ENTRY(spurious_interrupt_bug) +@@ -997,7 +1244,7 @@ ENTRY(spurious_interrupt_bug) + pushl_cfi $do_spurious_interrupt_bug + jmp error_code + CFI_ENDPROC +-END(spurious_interrupt_bug) ++ENDPROC(spurious_interrupt_bug) + /* + * End of kprobes section + */ +@@ -1112,7 +1359,7 @@ BUILD_INTERRUPT3(xen_hvm_callback_vector, XEN_HVM_EVTCHN_CALLBACK, + + ENTRY(mcount) + ret +-END(mcount) ++ENDPROC(mcount) + + ENTRY(ftrace_caller) + cmpl $0, function_trace_stop +@@ -1141,7 +1388,7 @@ ftrace_graph_call: + .globl ftrace_stub + ftrace_stub: + ret +-END(ftrace_caller) ++ENDPROC(ftrace_caller) + + #else /* ! CONFIG_DYNAMIC_FTRACE */ + +@@ -1177,7 +1424,7 @@ trace: + popl %ecx + popl %eax + jmp ftrace_stub +-END(mcount) ++ENDPROC(mcount) + #endif /* CONFIG_DYNAMIC_FTRACE */ + #endif /* CONFIG_FUNCTION_TRACER */ + +@@ -1198,7 +1445,7 @@ ENTRY(ftrace_graph_caller) + popl %ecx + popl %eax + ret +-END(ftrace_graph_caller) ++ENDPROC(ftrace_graph_caller) + + .globl return_to_handler + return_to_handler: +@@ -1253,15 +1500,18 @@ error_code: + movl $-1, PT_ORIG_EAX(%esp) # no syscall to restart + REG_TO_PTGS %ecx + SET_KERNEL_GS %ecx +- movl $(__USER_DS), %ecx ++ movl $(__KERNEL_DS), %ecx + movl %ecx, %ds + movl %ecx, %es ++ ++ pax_enter_kernel ++ + TRACE_IRQS_OFF + movl %esp,%eax # pt_regs pointer + call *%edi + jmp ret_from_exception + CFI_ENDPROC +-END(page_fault) ++ENDPROC(page_fault) + + /* + * Debug traps and NMI can happen at the one SYSENTER instruction +@@ -1303,7 +1553,7 @@ debug_stack_correct: + call do_debug + jmp ret_from_exception + CFI_ENDPROC +-END(debug) ++ENDPROC(debug) + + /* + * NMI is doubly nasty. It can happen _while_ we're handling +@@ -1340,6 +1590,9 @@ nmi_stack_correct: + xorl %edx,%edx # zero error code + movl %esp,%eax # pt_regs pointer + call do_nmi ++ ++ pax_exit_kernel ++ + jmp restore_all_notrace + CFI_ENDPROC + +@@ -1376,12 +1629,15 @@ nmi_espfix_stack: + FIXUP_ESPFIX_STACK # %eax == %esp + xorl %edx,%edx # zero error code + call do_nmi ++ ++ pax_exit_kernel ++ + RESTORE_REGS + lss 12+4(%esp), %esp # back to espfix stack + CFI_ADJUST_CFA_OFFSET -24 + jmp irq_return + CFI_ENDPROC +-END(nmi) ++ENDPROC(nmi) + + ENTRY(int3) + RING0_INT_FRAME +@@ -1393,14 +1649,14 @@ ENTRY(int3) + call do_int3 + jmp ret_from_exception + CFI_ENDPROC +-END(int3) ++ENDPROC(int3) + + ENTRY(general_protection) + RING0_EC_FRAME + pushl_cfi $do_general_protection + jmp error_code + CFI_ENDPROC +-END(general_protection) ++ENDPROC(general_protection) + + #ifdef CONFIG_KVM_GUEST + ENTRY(async_page_fault) +@@ -1408,7 +1664,7 @@ ENTRY(async_page_fault) + pushl_cfi $do_async_page_fault + jmp error_code + CFI_ENDPROC +-END(async_page_fault) ++ENDPROC(async_page_fault) + #endif + + /* +diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S +index cdc79b5..4710a75 100644 +--- a/arch/x86/kernel/entry_64.S ++++ b/arch/x86/kernel/entry_64.S +@@ -56,6 +56,8 @@ + #include <asm/ftrace.h> + #include <asm/percpu.h> + #include <linux/err.h> ++#include <asm/pgtable.h> ++#include <asm/alternative-asm.h> + + /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */ + #include <linux/elf-em.h> +@@ -69,8 +71,9 @@ + #ifdef CONFIG_FUNCTION_TRACER + #ifdef CONFIG_DYNAMIC_FTRACE + ENTRY(mcount) ++ pax_force_retaddr + retq +-END(mcount) ++ENDPROC(mcount) + + ENTRY(ftrace_caller) + cmpl $0, function_trace_stop +@@ -93,8 +96,9 @@ GLOBAL(ftrace_graph_call) + #endif + + GLOBAL(ftrace_stub) ++ pax_force_retaddr + retq +-END(ftrace_caller) ++ENDPROC(ftrace_caller) + + #else /* ! CONFIG_DYNAMIC_FTRACE */ + ENTRY(mcount) +@@ -113,6 +117,7 @@ ENTRY(mcount) + #endif + + GLOBAL(ftrace_stub) ++ pax_force_retaddr + retq + + trace: +@@ -122,12 +127,13 @@ trace: + movq 8(%rbp), %rsi + subq $MCOUNT_INSN_SIZE, %rdi + ++ pax_force_fptr ftrace_trace_function + call *ftrace_trace_function + + MCOUNT_RESTORE_FRAME + + jmp ftrace_stub +-END(mcount) ++ENDPROC(mcount) + #endif /* CONFIG_DYNAMIC_FTRACE */ + #endif /* CONFIG_FUNCTION_TRACER */ + +@@ -147,8 +153,9 @@ ENTRY(ftrace_graph_caller) + + MCOUNT_RESTORE_FRAME + ++ pax_force_retaddr + retq +-END(ftrace_graph_caller) ++ENDPROC(ftrace_graph_caller) + + GLOBAL(return_to_handler) + subq $24, %rsp +@@ -164,6 +171,7 @@ GLOBAL(return_to_handler) + movq 8(%rsp), %rdx + movq (%rsp), %rax + addq $24, %rsp ++ pax_force_fptr %rdi + jmp *%rdi + #endif + +@@ -179,6 +187,282 @@ ENTRY(native_usergs_sysret64) + ENDPROC(native_usergs_sysret64) + #endif /* CONFIG_PARAVIRT */ + ++ .macro ljmpq sel, off ++#if defined(CONFIG_MPSC) || defined(CONFIG_MCORE2) || defined (CONFIG_MATOM) ++ .byte 0x48; ljmp *1234f(%rip) ++ .pushsection .rodata ++ .align 16 ++ 1234: .quad \off; .word \sel ++ .popsection ++#else ++ pushq $\sel ++ pushq $\off ++ lretq ++#endif ++ .endm ++ ++ .macro pax_enter_kernel ++ pax_set_fptr_mask ++#ifdef CONFIG_PAX_KERNEXEC ++ call pax_enter_kernel ++#endif ++ .endm ++ ++ .macro pax_exit_kernel ++#ifdef CONFIG_PAX_KERNEXEC ++ call pax_exit_kernel ++#endif ++ .endm ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ENTRY(pax_enter_kernel) ++ pushq %rdi ++ ++#ifdef CONFIG_PARAVIRT ++ PV_SAVE_REGS(CLBR_RDI) ++#endif ++ ++ GET_CR0_INTO_RDI ++ bts $16,%rdi ++ jnc 3f ++ mov %cs,%edi ++ cmp $__KERNEL_CS,%edi ++ jnz 2f ++1: ++ ++#ifdef CONFIG_PARAVIRT ++ PV_RESTORE_REGS(CLBR_RDI) ++#endif ++ ++ popq %rdi ++ pax_force_retaddr ++ retq ++ ++2: ljmpq __KERNEL_CS,1f ++3: ljmpq __KERNEXEC_KERNEL_CS,4f ++4: SET_RDI_INTO_CR0 ++ jmp 1b ++ENDPROC(pax_enter_kernel) ++ ++ENTRY(pax_exit_kernel) ++ pushq %rdi ++ ++#ifdef CONFIG_PARAVIRT ++ PV_SAVE_REGS(CLBR_RDI) ++#endif ++ ++ mov %cs,%rdi ++ cmp $__KERNEXEC_KERNEL_CS,%edi ++ jz 2f ++1: ++ ++#ifdef CONFIG_PARAVIRT ++ PV_RESTORE_REGS(CLBR_RDI); ++#endif ++ ++ popq %rdi ++ pax_force_retaddr ++ retq ++ ++2: GET_CR0_INTO_RDI ++ btr $16,%rdi ++ ljmpq __KERNEL_CS,3f ++3: SET_RDI_INTO_CR0 ++ jmp 1b ++#ifdef CONFIG_PARAVIRT ++ PV_RESTORE_REGS(CLBR_RDI); ++#endif ++ ++ popq %rdi ++ pax_force_retaddr ++ retq ++ENDPROC(pax_exit_kernel) ++#endif ++ ++ .macro pax_enter_kernel_user ++ pax_set_fptr_mask ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ call pax_enter_kernel_user ++#endif ++ .endm ++ ++ .macro pax_exit_kernel_user ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ call pax_exit_kernel_user ++#endif ++#ifdef CONFIG_PAX_RANDKSTACK ++ pushq %rax ++ call pax_randomize_kstack ++ popq %rax ++#endif ++ .endm ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ENTRY(pax_enter_kernel_user) ++ pushq %rdi ++ pushq %rbx ++ ++#ifdef CONFIG_PARAVIRT ++ PV_SAVE_REGS(CLBR_RDI) ++#endif ++ ++ GET_CR3_INTO_RDI ++ mov %rdi,%rbx ++ add $__START_KERNEL_map,%rbx ++ sub phys_base(%rip),%rbx ++ ++#ifdef CONFIG_PARAVIRT ++ pushq %rdi ++ cmpl $0, pv_info+PARAVIRT_enabled ++ jz 1f ++ i = 0 ++ .rept USER_PGD_PTRS ++ mov i*8(%rbx),%rsi ++ mov $0,%sil ++ lea i*8(%rbx),%rdi ++ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched) ++ i = i + 1 ++ .endr ++ jmp 2f ++1: ++#endif ++ ++ i = 0 ++ .rept USER_PGD_PTRS ++ movb $0,i*8(%rbx) ++ i = i + 1 ++ .endr ++ ++#ifdef CONFIG_PARAVIRT ++2: popq %rdi ++#endif ++ SET_RDI_INTO_CR3 ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ GET_CR0_INTO_RDI ++ bts $16,%rdi ++ SET_RDI_INTO_CR0 ++#endif ++ ++#ifdef CONFIG_PARAVIRT ++ PV_RESTORE_REGS(CLBR_RDI) ++#endif ++ ++ popq %rbx ++ popq %rdi ++ pax_force_retaddr ++ retq ++ENDPROC(pax_enter_kernel_user) ++ ++ENTRY(pax_exit_kernel_user) ++ push %rdi ++ ++#ifdef CONFIG_PARAVIRT ++ pushq %rbx ++ PV_SAVE_REGS(CLBR_RDI) ++#endif ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ GET_CR0_INTO_RDI ++ btr $16,%rdi ++ SET_RDI_INTO_CR0 ++#endif ++ ++ GET_CR3_INTO_RDI ++ add $__START_KERNEL_map,%rdi ++ sub phys_base(%rip),%rdi ++ ++#ifdef CONFIG_PARAVIRT ++ cmpl $0, pv_info+PARAVIRT_enabled ++ jz 1f ++ mov %rdi,%rbx ++ i = 0 ++ .rept USER_PGD_PTRS ++ mov i*8(%rbx),%rsi ++ mov $0x67,%sil ++ lea i*8(%rbx),%rdi ++ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched) ++ i = i + 1 ++ .endr ++ jmp 2f ++1: ++#endif ++ ++ i = 0 ++ .rept USER_PGD_PTRS ++ movb $0x67,i*8(%rdi) ++ i = i + 1 ++ .endr ++ ++#ifdef CONFIG_PARAVIRT ++2: PV_RESTORE_REGS(CLBR_RDI) ++ popq %rbx ++#endif ++ ++ popq %rdi ++ pax_force_retaddr ++ retq ++ENDPROC(pax_exit_kernel_user) ++#endif ++ ++.macro pax_erase_kstack ++#ifdef CONFIG_PAX_MEMORY_STACKLEAK ++ call pax_erase_kstack ++#endif ++.endm ++ ++#ifdef CONFIG_PAX_MEMORY_STACKLEAK ++/* ++ * r11: thread_info ++ * rcx, rdx: can be clobbered ++ */ ++ENTRY(pax_erase_kstack) ++ pushq %rdi ++ pushq %rax ++ pushq %r11 ++ ++ GET_THREAD_INFO(%r11) ++ mov TI_lowest_stack(%r11), %rdi ++ mov $-0xBEEF, %rax ++ std ++ ++1: mov %edi, %ecx ++ and $THREAD_SIZE_asm - 1, %ecx ++ shr $3, %ecx ++ repne scasq ++ jecxz 2f ++ ++ cmp $2*8, %ecx ++ jc 2f ++ ++ mov $2*8, %ecx ++ repe scasq ++ jecxz 2f ++ jne 1b ++ ++2: cld ++ mov %esp, %ecx ++ sub %edi, %ecx ++ ++ cmp $THREAD_SIZE_asm, %rcx ++ jb 3f ++ ud2 ++3: ++ ++ shr $3, %ecx ++ rep stosq ++ ++ mov TI_task_thread_sp0(%r11), %rdi ++ sub $256, %rdi ++ mov %rdi, TI_lowest_stack(%r11) ++ ++ popq %r11 ++ popq %rax ++ popq %rdi ++ pax_force_retaddr ++ ret ++ENDPROC(pax_erase_kstack) ++#endif + + .macro TRACE_IRQS_IRETQ offset=ARGOFFSET + #ifdef CONFIG_TRACE_IRQFLAGS +@@ -232,8 +516,8 @@ ENDPROC(native_usergs_sysret64) + .endm + + .macro UNFAKE_STACK_FRAME +- addq $8*6, %rsp +- CFI_ADJUST_CFA_OFFSET -(6*8) ++ addq $8*6 + ARG_SKIP, %rsp ++ CFI_ADJUST_CFA_OFFSET -(6*8 + ARG_SKIP) + .endm + + /* +@@ -320,7 +604,7 @@ ENDPROC(native_usergs_sysret64) + movq %rsp, %rsi + + leaq -RBP(%rsp),%rdi /* arg1 for handler */ +- testl $3, CS-RBP(%rsi) ++ testb $3, CS-RBP(%rsi) + je 1f + SWAPGS + /* +@@ -355,9 +639,10 @@ ENTRY(save_rest) + movq_cfi r15, R15+16 + movq %r11, 8(%rsp) /* return address */ + FIXUP_TOP_OF_STACK %r11, 16 ++ pax_force_retaddr + ret + CFI_ENDPROC +-END(save_rest) ++ENDPROC(save_rest) + + /* save complete stack frame */ + .pushsection .kprobes.text, "ax" +@@ -386,9 +671,10 @@ ENTRY(save_paranoid) + js 1f /* negative -> in kernel */ + SWAPGS + xorl %ebx,%ebx +-1: ret ++1: pax_force_retaddr_bts ++ ret + CFI_ENDPROC +-END(save_paranoid) ++ENDPROC(save_paranoid) + .popsection + + /* +@@ -410,7 +696,7 @@ ENTRY(ret_from_fork) + + RESTORE_REST + +- testl $3, CS-ARGOFFSET(%rsp) # from kernel_thread? ++ testb $3, CS-ARGOFFSET(%rsp) # from kernel_thread? + jz retint_restore_args + + testl $_TIF_IA32, TI_flags(%rcx) # 32-bit compat task needs IRET +@@ -420,7 +706,7 @@ ENTRY(ret_from_fork) + jmp ret_from_sys_call # go to the SYSRET fastpath + + CFI_ENDPROC +-END(ret_from_fork) ++ENDPROC(ret_from_fork) + + /* + * System call entry. Up to 6 arguments in registers are supported. +@@ -456,7 +742,7 @@ END(ret_from_fork) + ENTRY(system_call) + CFI_STARTPROC simple + CFI_SIGNAL_FRAME +- CFI_DEF_CFA rsp,KERNEL_STACK_OFFSET ++ CFI_DEF_CFA rsp,0 + CFI_REGISTER rip,rcx + /*CFI_REGISTER rflags,r11*/ + SWAPGS_UNSAFE_STACK +@@ -469,16 +755,18 @@ GLOBAL(system_call_after_swapgs) + + movq %rsp,PER_CPU_VAR(old_rsp) + movq PER_CPU_VAR(kernel_stack),%rsp ++ SAVE_ARGS 8*6,0 ++ pax_enter_kernel_user + /* + * No need to follow this irqs off/on section - it's straight + * and short: + */ + ENABLE_INTERRUPTS(CLBR_NONE) +- SAVE_ARGS 8,0 + movq %rax,ORIG_RAX-ARGOFFSET(%rsp) + movq %rcx,RIP-ARGOFFSET(%rsp) + CFI_REL_OFFSET rip,RIP-ARGOFFSET +- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) ++ GET_THREAD_INFO(%rcx) ++ testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%rcx) + jnz tracesys + system_call_fastpath: + #if __SYSCALL_MASK == ~0 +@@ -488,7 +776,7 @@ system_call_fastpath: + cmpl $__NR_syscall_max,%eax + #endif + ja badsys +- movq %r10,%rcx ++ movq R10-ARGOFFSET(%rsp),%rcx + call *sys_call_table(,%rax,8) # XXX: rip relative + movq %rax,RAX-ARGOFFSET(%rsp) + /* +@@ -502,10 +790,13 @@ sysret_check: + LOCKDEP_SYS_EXIT + DISABLE_INTERRUPTS(CLBR_NONE) + TRACE_IRQS_OFF +- movl TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET),%edx ++ GET_THREAD_INFO(%rcx) ++ movl TI_flags(%rcx),%edx + andl %edi,%edx + jnz sysret_careful + CFI_REMEMBER_STATE ++ pax_exit_kernel_user ++ pax_erase_kstack + /* + * sysretq will re-enable interrupts: + */ +@@ -557,14 +848,18 @@ badsys: + * jump back to the normal fast path. + */ + auditsys: +- movq %r10,%r9 /* 6th arg: 4th syscall arg */ ++ movq R10-ARGOFFSET(%rsp),%r9 /* 6th arg: 4th syscall arg */ + movq %rdx,%r8 /* 5th arg: 3rd syscall arg */ + movq %rsi,%rcx /* 4th arg: 2nd syscall arg */ + movq %rdi,%rdx /* 3rd arg: 1st syscall arg */ + movq %rax,%rsi /* 2nd arg: syscall number */ + movl $AUDIT_ARCH_X86_64,%edi /* 1st arg: audit arch */ + call __audit_syscall_entry ++ ++ pax_erase_kstack ++ + LOAD_ARGS 0 /* reload call-clobbered registers */ ++ pax_set_fptr_mask + jmp system_call_fastpath + + /* +@@ -585,7 +880,7 @@ sysret_audit: + /* Do syscall tracing */ + tracesys: + #ifdef CONFIG_AUDITSYSCALL +- testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) ++ testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%rcx) + jz auditsys + #endif + SAVE_REST +@@ -593,12 +888,16 @@ tracesys: + FIXUP_TOP_OF_STACK %rdi + movq %rsp,%rdi + call syscall_trace_enter ++ ++ pax_erase_kstack ++ + /* + * Reload arg registers from stack in case ptrace changed them. + * We don't reload %rax because syscall_trace_enter() returned + * the value it wants us to use in the table lookup. + */ + LOAD_ARGS ARGOFFSET, 1 ++ pax_set_fptr_mask + RESTORE_REST + #if __SYSCALL_MASK == ~0 + cmpq $__NR_syscall_max,%rax +@@ -607,7 +906,7 @@ tracesys: + cmpl $__NR_syscall_max,%eax + #endif + ja int_ret_from_sys_call /* RAX(%rsp) set to -ENOSYS above */ +- movq %r10,%rcx /* fixup for C */ ++ movq R10-ARGOFFSET(%rsp),%rcx /* fixup for C */ + call *sys_call_table(,%rax,8) + movq %rax,RAX-ARGOFFSET(%rsp) + /* Use IRET because user could have changed frame */ +@@ -628,6 +927,7 @@ GLOBAL(int_with_check) + andl %edi,%edx + jnz int_careful + andl $~TS_COMPAT,TI_status(%rcx) ++ pax_erase_kstack + jmp retint_swapgs + + /* Either reschedule or signal or syscall exit tracking needed. */ +@@ -674,7 +974,7 @@ int_restore_rest: + TRACE_IRQS_OFF + jmp int_with_check + CFI_ENDPROC +-END(system_call) ++ENDPROC(system_call) + + /* + * Certain special system calls that need to save a complete full stack frame. +@@ -690,7 +990,7 @@ ENTRY(\label) + call \func + jmp ptregscall_common + CFI_ENDPROC +-END(\label) ++ENDPROC(\label) + .endm + + PTREGSCALL stub_clone, sys_clone, %r8 +@@ -708,9 +1008,10 @@ ENTRY(ptregscall_common) + movq_cfi_restore R12+8, r12 + movq_cfi_restore RBP+8, rbp + movq_cfi_restore RBX+8, rbx ++ pax_force_retaddr + ret $REST_SKIP /* pop extended registers */ + CFI_ENDPROC +-END(ptregscall_common) ++ENDPROC(ptregscall_common) + + ENTRY(stub_execve) + CFI_STARTPROC +@@ -725,7 +1026,7 @@ ENTRY(stub_execve) + RESTORE_REST + jmp int_ret_from_sys_call + CFI_ENDPROC +-END(stub_execve) ++ENDPROC(stub_execve) + + /* + * sigreturn is special because it needs to restore all registers on return. +@@ -743,7 +1044,7 @@ ENTRY(stub_rt_sigreturn) + RESTORE_REST + jmp int_ret_from_sys_call + CFI_ENDPROC +-END(stub_rt_sigreturn) ++ENDPROC(stub_rt_sigreturn) + + #ifdef CONFIG_X86_X32_ABI + PTREGSCALL stub_x32_sigaltstack, sys32_sigaltstack, %rdx +@@ -812,7 +1113,7 @@ vector=vector+1 + 2: jmp common_interrupt + .endr + CFI_ENDPROC +-END(irq_entries_start) ++ENDPROC(irq_entries_start) + + .previous + END(interrupt) +@@ -832,6 +1133,16 @@ END(interrupt) + subq $ORIG_RAX-RBP, %rsp + CFI_ADJUST_CFA_OFFSET ORIG_RAX-RBP + SAVE_ARGS_IRQ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ testb $3, CS(%rdi) ++ jnz 1f ++ pax_enter_kernel ++ jmp 2f ++1: pax_enter_kernel_user ++2: ++#else ++ pax_enter_kernel ++#endif + call \func + .endm + +@@ -863,7 +1174,7 @@ ret_from_intr: + + exit_intr: + GET_THREAD_INFO(%rcx) +- testl $3,CS-ARGOFFSET(%rsp) ++ testb $3,CS-ARGOFFSET(%rsp) + je retint_kernel + + /* Interrupt came from user space */ +@@ -885,12 +1196,15 @@ retint_swapgs: /* return to user-space */ + * The iretq could re-enable interrupts: + */ + DISABLE_INTERRUPTS(CLBR_ANY) ++ pax_exit_kernel_user + TRACE_IRQS_IRETQ + SWAPGS + jmp restore_args + + retint_restore_args: /* return to kernel space */ + DISABLE_INTERRUPTS(CLBR_ANY) ++ pax_exit_kernel ++ pax_force_retaddr RIP-ARGOFFSET + /* + * The iretq could re-enable interrupts: + */ +@@ -979,7 +1293,7 @@ ENTRY(retint_kernel) + #endif + + CFI_ENDPROC +-END(common_interrupt) ++ENDPROC(common_interrupt) + /* + * End of kprobes section + */ +@@ -996,7 +1310,7 @@ ENTRY(\sym) + interrupt \do_sym + jmp ret_from_intr + CFI_ENDPROC +-END(\sym) ++ENDPROC(\sym) + .endm + + #ifdef CONFIG_SMP +@@ -1069,12 +1383,22 @@ ENTRY(\sym) + CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15 + call error_entry + DEFAULT_FRAME 0 ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ testb $3, CS(%rsp) ++ jnz 1f ++ pax_enter_kernel ++ jmp 2f ++1: pax_enter_kernel_user ++2: ++#else ++ pax_enter_kernel ++#endif + movq %rsp,%rdi /* pt_regs pointer */ + xorl %esi,%esi /* no error code */ + call \do_sym + jmp error_exit /* %ebx: no swapgs flag */ + CFI_ENDPROC +-END(\sym) ++ENDPROC(\sym) + .endm + + .macro paranoidzeroentry sym do_sym +@@ -1086,15 +1410,25 @@ ENTRY(\sym) + CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15 + call save_paranoid + TRACE_IRQS_OFF ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ testb $3, CS(%rsp) ++ jnz 1f ++ pax_enter_kernel ++ jmp 2f ++1: pax_enter_kernel_user ++2: ++#else ++ pax_enter_kernel ++#endif + movq %rsp,%rdi /* pt_regs pointer */ + xorl %esi,%esi /* no error code */ + call \do_sym + jmp paranoid_exit /* %ebx: no swapgs flag */ + CFI_ENDPROC +-END(\sym) ++ENDPROC(\sym) + .endm + +-#define INIT_TSS_IST(x) PER_CPU_VAR(init_tss) + (TSS_ist + ((x) - 1) * 8) ++#define INIT_TSS_IST(x) (TSS_ist + ((x) - 1) * 8)(%r12) + .macro paranoidzeroentry_ist sym do_sym ist + ENTRY(\sym) + INTR_FRAME +@@ -1104,14 +1438,30 @@ ENTRY(\sym) + CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15 + call save_paranoid + TRACE_IRQS_OFF ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ testb $3, CS(%rsp) ++ jnz 1f ++ pax_enter_kernel ++ jmp 2f ++1: pax_enter_kernel_user ++2: ++#else ++ pax_enter_kernel ++#endif + movq %rsp,%rdi /* pt_regs pointer */ + xorl %esi,%esi /* no error code */ ++#ifdef CONFIG_SMP ++ imul $TSS_size, PER_CPU_VAR(cpu_number), %r12d ++ lea init_tss(%r12), %r12 ++#else ++ lea init_tss(%rip), %r12 ++#endif + subq $EXCEPTION_STKSZ, INIT_TSS_IST(\ist) + call \do_sym + addq $EXCEPTION_STKSZ, INIT_TSS_IST(\ist) + jmp paranoid_exit /* %ebx: no swapgs flag */ + CFI_ENDPROC +-END(\sym) ++ENDPROC(\sym) + .endm + + .macro errorentry sym do_sym +@@ -1122,13 +1472,23 @@ ENTRY(\sym) + CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15 + call error_entry + DEFAULT_FRAME 0 ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ testb $3, CS(%rsp) ++ jnz 1f ++ pax_enter_kernel ++ jmp 2f ++1: pax_enter_kernel_user ++2: ++#else ++ pax_enter_kernel ++#endif + movq %rsp,%rdi /* pt_regs pointer */ + movq ORIG_RAX(%rsp),%rsi /* get error code */ + movq $-1,ORIG_RAX(%rsp) /* no syscall to restart */ + call \do_sym + jmp error_exit /* %ebx: no swapgs flag */ + CFI_ENDPROC +-END(\sym) ++ENDPROC(\sym) + .endm + + /* error code is on the stack already */ +@@ -1141,13 +1501,23 @@ ENTRY(\sym) + call save_paranoid + DEFAULT_FRAME 0 + TRACE_IRQS_OFF ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ testb $3, CS(%rsp) ++ jnz 1f ++ pax_enter_kernel ++ jmp 2f ++1: pax_enter_kernel_user ++2: ++#else ++ pax_enter_kernel ++#endif + movq %rsp,%rdi /* pt_regs pointer */ + movq ORIG_RAX(%rsp),%rsi /* get error code */ + movq $-1,ORIG_RAX(%rsp) /* no syscall to restart */ + call \do_sym + jmp paranoid_exit /* %ebx: no swapgs flag */ + CFI_ENDPROC +-END(\sym) ++ENDPROC(\sym) + .endm + + zeroentry divide_error do_divide_error +@@ -1177,9 +1547,10 @@ gs_change: + 2: mfence /* workaround */ + SWAPGS + popfq_cfi ++ pax_force_retaddr + ret + CFI_ENDPROC +-END(native_load_gs_index) ++ENDPROC(native_load_gs_index) + + .section __ex_table,"a" + .align 8 +@@ -1201,13 +1572,14 @@ ENTRY(kernel_thread_helper) + * Here we are in the child and the registers are set as they were + * at kernel_thread() invocation in the parent. + */ ++ pax_force_fptr %rsi + call *%rsi + # exit + mov %eax, %edi + call do_exit + ud2 # padding for call trace + CFI_ENDPROC +-END(kernel_thread_helper) ++ENDPROC(kernel_thread_helper) + + /* + * execve(). This function needs to use IRET, not SYSRET, to set up all state properly. +@@ -1234,11 +1606,11 @@ ENTRY(kernel_execve) + RESTORE_REST + testq %rax,%rax + je int_ret_from_sys_call +- RESTORE_ARGS + UNFAKE_STACK_FRAME ++ pax_force_retaddr + ret + CFI_ENDPROC +-END(kernel_execve) ++ENDPROC(kernel_execve) + + /* Call softirq on interrupt stack. Interrupts are off. */ + ENTRY(call_softirq) +@@ -1256,9 +1628,10 @@ ENTRY(call_softirq) + CFI_DEF_CFA_REGISTER rsp + CFI_ADJUST_CFA_OFFSET -8 + decl PER_CPU_VAR(irq_count) ++ pax_force_retaddr + ret + CFI_ENDPROC +-END(call_softirq) ++ENDPROC(call_softirq) + + #ifdef CONFIG_XEN + zeroentry xen_hypervisor_callback xen_do_hypervisor_callback +@@ -1296,7 +1669,7 @@ ENTRY(xen_do_hypervisor_callback) # do_hypervisor_callback(struct *pt_regs) + decl PER_CPU_VAR(irq_count) + jmp error_exit + CFI_ENDPROC +-END(xen_do_hypervisor_callback) ++ENDPROC(xen_do_hypervisor_callback) + + /* + * Hypervisor uses this for application faults while it executes. +@@ -1355,7 +1728,7 @@ ENTRY(xen_failsafe_callback) + SAVE_ALL + jmp error_exit + CFI_ENDPROC +-END(xen_failsafe_callback) ++ENDPROC(xen_failsafe_callback) + + apicinterrupt XEN_HVM_EVTCHN_CALLBACK \ + xen_hvm_callback_vector xen_evtchn_do_upcall +@@ -1404,16 +1777,31 @@ ENTRY(paranoid_exit) + TRACE_IRQS_OFF + testl %ebx,%ebx /* swapgs needed? */ + jnz paranoid_restore +- testl $3,CS(%rsp) ++ testb $3,CS(%rsp) + jnz paranoid_userspace ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ pax_exit_kernel ++ TRACE_IRQS_IRETQ 0 ++ SWAPGS_UNSAFE_STACK ++ RESTORE_ALL 8 ++ pax_force_retaddr_bts ++ jmp irq_return ++#endif + paranoid_swapgs: ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ pax_exit_kernel_user ++#else ++ pax_exit_kernel ++#endif + TRACE_IRQS_IRETQ 0 + SWAPGS_UNSAFE_STACK + RESTORE_ALL 8 + jmp irq_return + paranoid_restore: ++ pax_exit_kernel + TRACE_IRQS_IRETQ 0 + RESTORE_ALL 8 ++ pax_force_retaddr_bts + jmp irq_return + paranoid_userspace: + GET_THREAD_INFO(%rcx) +@@ -1442,7 +1830,7 @@ paranoid_schedule: + TRACE_IRQS_OFF + jmp paranoid_userspace + CFI_ENDPROC +-END(paranoid_exit) ++ENDPROC(paranoid_exit) + + /* + * Exception entry point. This expects an error code/orig_rax on the stack. +@@ -1469,12 +1857,13 @@ ENTRY(error_entry) + movq_cfi r14, R14+8 + movq_cfi r15, R15+8 + xorl %ebx,%ebx +- testl $3,CS+8(%rsp) ++ testb $3,CS+8(%rsp) + je error_kernelspace + error_swapgs: + SWAPGS + error_sti: + TRACE_IRQS_OFF ++ pax_force_retaddr_bts + ret + + /* +@@ -1501,7 +1890,7 @@ bstep_iret: + movq %rcx,RIP+8(%rsp) + jmp error_swapgs + CFI_ENDPROC +-END(error_entry) ++ENDPROC(error_entry) + + + /* ebx: no swapgs flag (1: don't need swapgs, 0: need it) */ +@@ -1521,7 +1910,7 @@ ENTRY(error_exit) + jnz retint_careful + jmp retint_swapgs + CFI_ENDPROC +-END(error_exit) ++ENDPROC(error_exit) + + /* + * Test if a given stack is an NMI stack or not. +@@ -1579,9 +1968,11 @@ ENTRY(nmi) + * If %cs was not the kernel segment, then the NMI triggered in user + * space, which means it is definitely not nested. + */ ++ cmpl $__KERNEXEC_KERNEL_CS, 16(%rsp) ++ je 1f + cmpl $__KERNEL_CS, 16(%rsp) + jne first_nmi +- ++1: + /* + * Check the special variable on the stack to see if NMIs are + * executing. +@@ -1728,6 +2119,16 @@ end_repeat_nmi: + */ + call save_paranoid + DEFAULT_FRAME 0 ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ testb $3, CS(%rsp) ++ jnz 1f ++ pax_enter_kernel ++ jmp 2f ++1: pax_enter_kernel_user ++2: ++#else ++ pax_enter_kernel ++#endif + /* paranoidentry do_nmi, 0; without TRACE_IRQS_OFF */ + movq %rsp,%rdi + movq $-1,%rsi +@@ -1735,21 +2136,32 @@ end_repeat_nmi: + testl %ebx,%ebx /* swapgs needed? */ + jnz nmi_restore + nmi_swapgs: ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ pax_exit_kernel_user ++#else ++ pax_exit_kernel ++#endif + SWAPGS_UNSAFE_STACK ++ RESTORE_ALL 8 ++ /* Clear the NMI executing stack variable */ ++ movq $0, 10*8(%rsp) ++ jmp irq_return + nmi_restore: ++ pax_exit_kernel + RESTORE_ALL 8 ++ pax_force_retaddr_bts + /* Clear the NMI executing stack variable */ + movq $0, 10*8(%rsp) + jmp irq_return + CFI_ENDPROC +-END(nmi) ++ENDPROC(nmi) + + ENTRY(ignore_sysret) + CFI_STARTPROC + mov $-ENOSYS,%eax + sysret + CFI_ENDPROC +-END(ignore_sysret) ++ENDPROC(ignore_sysret) + + /* + * End of kprobes section +diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c +index c9a281f..ce2f317 100644 +--- a/arch/x86/kernel/ftrace.c ++++ b/arch/x86/kernel/ftrace.c +@@ -126,7 +126,7 @@ static void *mod_code_ip; /* holds the IP to write to */ + static const void *mod_code_newcode; /* holds the text to write to the IP */ + + static unsigned nmi_wait_count; +-static atomic_t nmi_update_count = ATOMIC_INIT(0); ++static atomic_unchecked_t nmi_update_count = ATOMIC_INIT(0); + + int ftrace_arch_read_dyn_info(char *buf, int size) + { +@@ -134,7 +134,7 @@ int ftrace_arch_read_dyn_info(char *buf, int size) + + r = snprintf(buf, size, "%u %u", + nmi_wait_count, +- atomic_read(&nmi_update_count)); ++ atomic_read_unchecked(&nmi_update_count)); + return r; + } + +@@ -177,8 +177,10 @@ void ftrace_nmi_enter(void) + + if (atomic_inc_return(&nmi_running) & MOD_CODE_WRITE_FLAG) { + smp_rmb(); ++ pax_open_kernel(); + ftrace_mod_code(); +- atomic_inc(&nmi_update_count); ++ pax_close_kernel(); ++ atomic_inc_unchecked(&nmi_update_count); + } + /* Must have previous changes seen before executions */ + smp_mb(); +@@ -271,6 +273,8 @@ ftrace_modify_code(unsigned long ip, unsigned const char *old_code, + { + unsigned char replaced[MCOUNT_INSN_SIZE]; + ++ ip = ktla_ktva(ip); ++ + /* + * Note: Due to modules and __init, code can + * disappear and change, we need to protect against faulting +@@ -327,7 +331,7 @@ int ftrace_update_ftrace_func(ftrace_func_t func) + unsigned char old[MCOUNT_INSN_SIZE], *new; + int ret; + +- memcpy(old, &ftrace_call, MCOUNT_INSN_SIZE); ++ memcpy(old, (void *)ktla_ktva((unsigned long)ftrace_call), MCOUNT_INSN_SIZE); + new = ftrace_call_replace(ip, (unsigned long)func); + ret = ftrace_modify_code(ip, old, new); + +@@ -353,6 +357,8 @@ static int ftrace_mod_jmp(unsigned long ip, + { + unsigned char code[MCOUNT_INSN_SIZE]; + ++ ip = ktla_ktva(ip); ++ + if (probe_kernel_read(code, (void *)ip, MCOUNT_INSN_SIZE)) + return -EFAULT; + +diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c +index 51ff186..9e77418 100644 +--- a/arch/x86/kernel/head32.c ++++ b/arch/x86/kernel/head32.c +@@ -19,6 +19,7 @@ + #include <asm/io_apic.h> + #include <asm/bios_ebda.h> + #include <asm/tlbflush.h> ++#include <asm/boot.h> + + static void __init i386_default_early_setup(void) + { +@@ -31,8 +32,7 @@ static void __init i386_default_early_setup(void) + + void __init i386_start_kernel(void) + { +- memblock_reserve(__pa_symbol(&_text), +- __pa_symbol(&__bss_stop) - __pa_symbol(&_text)); ++ memblock_reserve(LOAD_PHYSICAL_ADDR, __pa_symbol(&__bss_stop) - LOAD_PHYSICAL_ADDR); + + #ifdef CONFIG_BLK_DEV_INITRD + /* Reserve INITRD */ +diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S +index ce0be7c..c41476e 100644 +--- a/arch/x86/kernel/head_32.S ++++ b/arch/x86/kernel/head_32.S +@@ -25,6 +25,12 @@ + /* Physical address */ + #define pa(X) ((X) - __PAGE_OFFSET) + ++#ifdef CONFIG_PAX_KERNEXEC ++#define ta(X) (X) ++#else ++#define ta(X) ((X) - __PAGE_OFFSET) ++#endif ++ + /* + * References to members of the new_cpu_data structure. + */ +@@ -54,11 +60,7 @@ + * and small than max_low_pfn, otherwise will waste some page table entries + */ + +-#if PTRS_PER_PMD > 1 +-#define PAGE_TABLE_SIZE(pages) (((pages) / PTRS_PER_PMD) + PTRS_PER_PGD) +-#else +-#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PGD) +-#endif ++#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PTE) + + /* Number of possible pages in the lowmem region */ + LOWMEM_PAGES = (((1<<32) - __PAGE_OFFSET) >> PAGE_SHIFT) +@@ -77,6 +79,12 @@ INIT_MAP_SIZE = PAGE_TABLE_SIZE(KERNEL_PAGES) * PAGE_SIZE + RESERVE_BRK(pagetables, INIT_MAP_SIZE) + + /* ++ * Real beginning of normal "text" segment ++ */ ++ENTRY(stext) ++ENTRY(_stext) ++ ++/* + * 32-bit kernel entrypoint; only used by the boot CPU. On entry, + * %esi points to the real-mode code as a 32-bit pointer. + * CS and DS must be 4 GB flat segments, but we don't depend on +@@ -84,6 +92,13 @@ RESERVE_BRK(pagetables, INIT_MAP_SIZE) + * can. + */ + __HEAD ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ jmp startup_32 ++/* PaX: fill first page in .text with int3 to catch NULL derefs in kernel mode */ ++.fill PAGE_SIZE-5,1,0xcc ++#endif ++ + ENTRY(startup_32) + movl pa(stack_start),%ecx + +@@ -105,6 +120,57 @@ ENTRY(startup_32) + 2: + leal -__PAGE_OFFSET(%ecx),%esp + ++#ifdef CONFIG_SMP ++ movl $pa(cpu_gdt_table),%edi ++ movl $__per_cpu_load,%eax ++ movw %ax,__KERNEL_PERCPU + 2(%edi) ++ rorl $16,%eax ++ movb %al,__KERNEL_PERCPU + 4(%edi) ++ movb %ah,__KERNEL_PERCPU + 7(%edi) ++ movl $__per_cpu_end - 1,%eax ++ subl $__per_cpu_start,%eax ++ movw %ax,__KERNEL_PERCPU + 0(%edi) ++#endif ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ movl $NR_CPUS,%ecx ++ movl $pa(cpu_gdt_table),%edi ++1: ++ movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c09700),GDT_ENTRY_KERNEL_DS * 8 + 4(%edi) ++ movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0fb00),GDT_ENTRY_DEFAULT_USER_CS * 8 + 4(%edi) ++ movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0f300),GDT_ENTRY_DEFAULT_USER_DS * 8 + 4(%edi) ++ addl $PAGE_SIZE_asm,%edi ++ loop 1b ++#endif ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ movl $pa(boot_gdt),%edi ++ movl $__LOAD_PHYSICAL_ADDR,%eax ++ movw %ax,__BOOT_CS + 2(%edi) ++ rorl $16,%eax ++ movb %al,__BOOT_CS + 4(%edi) ++ movb %ah,__BOOT_CS + 7(%edi) ++ rorl $16,%eax ++ ++ ljmp $(__BOOT_CS),$1f ++1: ++ ++ movl $NR_CPUS,%ecx ++ movl $pa(cpu_gdt_table),%edi ++ addl $__PAGE_OFFSET,%eax ++1: ++ movw %ax,__KERNEL_CS + 2(%edi) ++ movw %ax,__KERNEXEC_KERNEL_CS + 2(%edi) ++ rorl $16,%eax ++ movb %al,__KERNEL_CS + 4(%edi) ++ movb %al,__KERNEXEC_KERNEL_CS + 4(%edi) ++ movb %ah,__KERNEL_CS + 7(%edi) ++ movb %ah,__KERNEXEC_KERNEL_CS + 7(%edi) ++ rorl $16,%eax ++ addl $PAGE_SIZE_asm,%edi ++ loop 1b ++#endif ++ + /* + * Clear BSS first so that there are no surprises... + */ +@@ -195,8 +261,11 @@ ENTRY(startup_32) + movl %eax, pa(max_pfn_mapped) + + /* Do early initialization of the fixmap area */ +- movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax +- movl %eax,pa(initial_pg_pmd+0x1000*KPMDS-8) ++#ifdef CONFIG_COMPAT_VDSO ++ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_pg_pmd+0x1000*KPMDS-8) ++#else ++ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_pg_pmd+0x1000*KPMDS-8) ++#endif + #else /* Not PAE */ + + page_pde_offset = (__PAGE_OFFSET >> 20); +@@ -226,8 +295,11 @@ page_pde_offset = (__PAGE_OFFSET >> 20); + movl %eax, pa(max_pfn_mapped) + + /* Do early initialization of the fixmap area */ +- movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax +- movl %eax,pa(initial_page_table+0xffc) ++#ifdef CONFIG_COMPAT_VDSO ++ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_page_table+0xffc) ++#else ++ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_page_table+0xffc) ++#endif + #endif + + #ifdef CONFIG_PARAVIRT +@@ -241,9 +313,7 @@ page_pde_offset = (__PAGE_OFFSET >> 20); + cmpl $num_subarch_entries, %eax + jae bad_subarch + +- movl pa(subarch_entries)(,%eax,4), %eax +- subl $__PAGE_OFFSET, %eax +- jmp *%eax ++ jmp *pa(subarch_entries)(,%eax,4) + + bad_subarch: + WEAK(lguest_entry) +@@ -255,10 +325,10 @@ WEAK(xen_entry) + __INITDATA + + subarch_entries: +- .long default_entry /* normal x86/PC */ +- .long lguest_entry /* lguest hypervisor */ +- .long xen_entry /* Xen hypervisor */ +- .long default_entry /* Moorestown MID */ ++ .long ta(default_entry) /* normal x86/PC */ ++ .long ta(lguest_entry) /* lguest hypervisor */ ++ .long ta(xen_entry) /* Xen hypervisor */ ++ .long ta(default_entry) /* Moorestown MID */ + num_subarch_entries = (. - subarch_entries) / 4 + .previous + #else +@@ -312,6 +382,7 @@ default_entry: + orl %edx,%eax + movl %eax,%cr4 + ++#ifdef CONFIG_X86_PAE + testb $X86_CR4_PAE, %al # check if PAE is enabled + jz 6f + +@@ -340,6 +411,9 @@ default_entry: + /* Make changes effective */ + wrmsr + ++ btsl $_PAGE_BIT_NX-32,pa(__supported_pte_mask+4) ++#endif ++ + 6: + + /* +@@ -443,7 +517,7 @@ is386: movl $2,%ecx # set MP + 1: movl $(__KERNEL_DS),%eax # reload all the segment registers + movl %eax,%ss # after changing gdt. + +- movl $(__USER_DS),%eax # DS/ES contains default USER segment ++# movl $(__KERNEL_DS),%eax # DS/ES contains default KERNEL segment + movl %eax,%ds + movl %eax,%es + +@@ -457,15 +531,22 @@ is386: movl $2,%ecx # set MP + */ + cmpb $0,ready + jne 1f +- movl $gdt_page,%eax ++ movl $cpu_gdt_table,%eax + movl $stack_canary,%ecx ++#ifdef CONFIG_SMP ++ addl $__per_cpu_load,%ecx ++#endif + movw %cx, 8 * GDT_ENTRY_STACK_CANARY + 2(%eax) + shrl $16, %ecx + movb %cl, 8 * GDT_ENTRY_STACK_CANARY + 4(%eax) + movb %ch, 8 * GDT_ENTRY_STACK_CANARY + 7(%eax) + 1: +-#endif + movl $(__KERNEL_STACK_CANARY),%eax ++#elif defined(CONFIG_PAX_MEMORY_UDEREF) ++ movl $(__USER_DS),%eax ++#else ++ xorl %eax,%eax ++#endif + movl %eax,%gs + + xorl %eax,%eax # Clear LDT +@@ -558,22 +639,22 @@ early_page_fault: + jmp early_fault + + early_fault: +- cld + #ifdef CONFIG_PRINTK ++ cmpl $1,%ss:early_recursion_flag ++ je hlt_loop ++ incl %ss:early_recursion_flag ++ cld + pusha + movl $(__KERNEL_DS),%eax + movl %eax,%ds + movl %eax,%es +- cmpl $2,early_recursion_flag +- je hlt_loop +- incl early_recursion_flag + movl %cr2,%eax + pushl %eax + pushl %edx /* trapno */ + pushl $fault_msg + call printk ++; call dump_stack + #endif +- call dump_stack + hlt_loop: + hlt + jmp hlt_loop +@@ -581,8 +662,11 @@ hlt_loop: + /* This is the default interrupt "handler" :-) */ + ALIGN + ignore_int: +- cld + #ifdef CONFIG_PRINTK ++ cmpl $2,%ss:early_recursion_flag ++ je hlt_loop ++ incl %ss:early_recursion_flag ++ cld + pushl %eax + pushl %ecx + pushl %edx +@@ -591,9 +675,6 @@ ignore_int: + movl $(__KERNEL_DS),%eax + movl %eax,%ds + movl %eax,%es +- cmpl $2,early_recursion_flag +- je hlt_loop +- incl early_recursion_flag + pushl 16(%esp) + pushl 24(%esp) + pushl 32(%esp) +@@ -622,29 +703,43 @@ ENTRY(initial_code) + /* + * BSS section + */ +-__PAGE_ALIGNED_BSS +- .align PAGE_SIZE + #ifdef CONFIG_X86_PAE ++.section .initial_pg_pmd,"a",@progbits + initial_pg_pmd: + .fill 1024*KPMDS,4,0 + #else ++.section .initial_page_table,"a",@progbits + ENTRY(initial_page_table) + .fill 1024,4,0 + #endif ++.section .initial_pg_fixmap,"a",@progbits + initial_pg_fixmap: + .fill 1024,4,0 ++.section .empty_zero_page,"a",@progbits + ENTRY(empty_zero_page) + .fill 4096,1,0 ++.section .swapper_pg_dir,"a",@progbits + ENTRY(swapper_pg_dir) ++#ifdef CONFIG_X86_PAE ++ .fill 4,8,0 ++#else + .fill 1024,4,0 ++#endif ++ ++/* ++ * The IDT has to be page-aligned to simplify the Pentium ++ * F0 0F bug workaround.. We have a special link segment ++ * for this. ++ */ ++.section .idt,"a",@progbits ++ENTRY(idt_table) ++ .fill 256,8,0 + + /* + * This starts the data section. + */ + #ifdef CONFIG_X86_PAE +-__PAGE_ALIGNED_DATA +- /* Page-aligned for the benefit of paravirt? */ +- .align PAGE_SIZE ++.section .initial_page_table,"a",@progbits + ENTRY(initial_page_table) + .long pa(initial_pg_pmd+PGD_IDENT_ATTR),0 /* low identity map */ + # if KPMDS == 3 +@@ -663,18 +758,27 @@ ENTRY(initial_page_table) + # error "Kernel PMDs should be 1, 2 or 3" + # endif + .align PAGE_SIZE /* needs to be page-sized too */ ++ ++#ifdef CONFIG_PAX_PER_CPU_PGD ++ENTRY(cpu_pgd) ++ .rept NR_CPUS ++ .fill 4,8,0 ++ .endr ++#endif ++ + #endif + + .data + .balign 4 + ENTRY(stack_start) +- .long init_thread_union+THREAD_SIZE ++ .long init_thread_union+THREAD_SIZE-8 + ++ready: .byte 0 ++ ++.section .rodata,"a",@progbits + early_recursion_flag: + .long 0 + +-ready: .byte 0 +- + int_msg: + .asciz "Unknown interrupt or fault at: %p %p %p\n" + +@@ -707,7 +811,7 @@ fault_msg: + .word 0 # 32 bit align gdt_desc.address + boot_gdt_descr: + .word __BOOT_DS+7 +- .long boot_gdt - __PAGE_OFFSET ++ .long pa(boot_gdt) + + .word 0 # 32-bit align idt_desc.address + idt_descr: +@@ -718,7 +822,7 @@ idt_descr: + .word 0 # 32 bit align gdt_desc.address + ENTRY(early_gdt_descr) + .word GDT_ENTRIES*8-1 +- .long gdt_page /* Overwritten for secondary CPUs */ ++ .long cpu_gdt_table /* Overwritten for secondary CPUs */ + + /* + * The boot_gdt must mirror the equivalent in setup.S and is +@@ -727,5 +831,65 @@ ENTRY(early_gdt_descr) + .align L1_CACHE_BYTES + ENTRY(boot_gdt) + .fill GDT_ENTRY_BOOT_CS,8,0 +- .quad 0x00cf9a000000ffff /* kernel 4GB code at 0x00000000 */ +- .quad 0x00cf92000000ffff /* kernel 4GB data at 0x00000000 */ ++ .quad 0x00cf9b000000ffff /* kernel 4GB code at 0x00000000 */ ++ .quad 0x00cf93000000ffff /* kernel 4GB data at 0x00000000 */ ++ ++ .align PAGE_SIZE_asm ++ENTRY(cpu_gdt_table) ++ .rept NR_CPUS ++ .quad 0x0000000000000000 /* NULL descriptor */ ++ .quad 0x0000000000000000 /* 0x0b reserved */ ++ .quad 0x0000000000000000 /* 0x13 reserved */ ++ .quad 0x0000000000000000 /* 0x1b reserved */ ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ .quad 0x00cf9b000000ffff /* 0x20 alternate kernel 4GB code at 0x00000000 */ ++#else ++ .quad 0x0000000000000000 /* 0x20 unused */ ++#endif ++ ++ .quad 0x0000000000000000 /* 0x28 unused */ ++ .quad 0x0000000000000000 /* 0x33 TLS entry 1 */ ++ .quad 0x0000000000000000 /* 0x3b TLS entry 2 */ ++ .quad 0x0000000000000000 /* 0x43 TLS entry 3 */ ++ .quad 0x0000000000000000 /* 0x4b reserved */ ++ .quad 0x0000000000000000 /* 0x53 reserved */ ++ .quad 0x0000000000000000 /* 0x5b reserved */ ++ ++ .quad 0x00cf9b000000ffff /* 0x60 kernel 4GB code at 0x00000000 */ ++ .quad 0x00cf93000000ffff /* 0x68 kernel 4GB data at 0x00000000 */ ++ .quad 0x00cffb000000ffff /* 0x73 user 4GB code at 0x00000000 */ ++ .quad 0x00cff3000000ffff /* 0x7b user 4GB data at 0x00000000 */ ++ ++ .quad 0x0000000000000000 /* 0x80 TSS descriptor */ ++ .quad 0x0000000000000000 /* 0x88 LDT descriptor */ ++ ++ /* ++ * Segments used for calling PnP BIOS have byte granularity. ++ * The code segments and data segments have fixed 64k limits, ++ * the transfer segment sizes are set at run time. ++ */ ++ .quad 0x00409b000000ffff /* 0x90 32-bit code */ ++ .quad 0x00009b000000ffff /* 0x98 16-bit code */ ++ .quad 0x000093000000ffff /* 0xa0 16-bit data */ ++ .quad 0x0000930000000000 /* 0xa8 16-bit data */ ++ .quad 0x0000930000000000 /* 0xb0 16-bit data */ ++ ++ /* ++ * The APM segments have byte granularity and their bases ++ * are set at run time. All have 64k limits. ++ */ ++ .quad 0x00409b000000ffff /* 0xb8 APM CS code */ ++ .quad 0x00009b000000ffff /* 0xc0 APM CS 16 code (16 bit) */ ++ .quad 0x004093000000ffff /* 0xc8 APM DS data */ ++ ++ .quad 0x00c0930000000000 /* 0xd0 - ESPFIX SS */ ++ .quad 0x0040930000000000 /* 0xd8 - PERCPU */ ++ .quad 0x0040910000000017 /* 0xe0 - STACK_CANARY */ ++ .quad 0x0000000000000000 /* 0xe8 - PCIBIOS_CS */ ++ .quad 0x0000000000000000 /* 0xf0 - PCIBIOS_DS */ ++ .quad 0x0000000000000000 /* 0xf8 - GDT entry 31: double-fault TSS */ ++ ++ /* Be sure this is zeroed to avoid false validations in Xen */ ++ .fill PAGE_SIZE_asm - GDT_SIZE,1,0 ++ .endr +diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S +index 40f4eb3..6d24d9d 100644 +--- a/arch/x86/kernel/head_64.S ++++ b/arch/x86/kernel/head_64.S +@@ -19,6 +19,8 @@ + #include <asm/cache.h> + #include <asm/processor-flags.h> + #include <asm/percpu.h> ++#include <asm/cpufeature.h> ++#include <asm/alternative-asm.h> + + #ifdef CONFIG_PARAVIRT + #include <asm/asm-offsets.h> +@@ -38,6 +40,12 @@ L4_PAGE_OFFSET = pgd_index(__PAGE_OFFSET) + L3_PAGE_OFFSET = pud_index(__PAGE_OFFSET) + L4_START_KERNEL = pgd_index(__START_KERNEL_map) + L3_START_KERNEL = pud_index(__START_KERNEL_map) ++L4_VMALLOC_START = pgd_index(VMALLOC_START) ++L3_VMALLOC_START = pud_index(VMALLOC_START) ++L4_VMALLOC_END = pgd_index(VMALLOC_END) ++L3_VMALLOC_END = pud_index(VMALLOC_END) ++L4_VMEMMAP_START = pgd_index(VMEMMAP_START) ++L3_VMEMMAP_START = pud_index(VMEMMAP_START) + + .text + __HEAD +@@ -85,35 +93,23 @@ startup_64: + */ + addq %rbp, init_level4_pgt + 0(%rip) + addq %rbp, init_level4_pgt + (L4_PAGE_OFFSET*8)(%rip) ++ addq %rbp, init_level4_pgt + (L4_VMALLOC_START*8)(%rip) ++ addq %rbp, init_level4_pgt + (L4_VMALLOC_END*8)(%rip) ++ addq %rbp, init_level4_pgt + (L4_VMEMMAP_START*8)(%rip) + addq %rbp, init_level4_pgt + (L4_START_KERNEL*8)(%rip) + + addq %rbp, level3_ident_pgt + 0(%rip) ++#ifndef CONFIG_XEN ++ addq %rbp, level3_ident_pgt + 8(%rip) ++#endif + +- addq %rbp, level3_kernel_pgt + (510*8)(%rip) +- addq %rbp, level3_kernel_pgt + (511*8)(%rip) ++ addq %rbp, level3_vmemmap_pgt + (L3_VMEMMAP_START*8)(%rip) ++ ++ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8)(%rip) ++ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8+8)(%rip) + + addq %rbp, level2_fixmap_pgt + (506*8)(%rip) +- +- /* Add an Identity mapping if I am above 1G */ +- leaq _text(%rip), %rdi +- andq $PMD_PAGE_MASK, %rdi +- +- movq %rdi, %rax +- shrq $PUD_SHIFT, %rax +- andq $(PTRS_PER_PUD - 1), %rax +- jz ident_complete +- +- leaq (level2_spare_pgt - __START_KERNEL_map + _KERNPG_TABLE)(%rbp), %rdx +- leaq level3_ident_pgt(%rip), %rbx +- movq %rdx, 0(%rbx, %rax, 8) +- +- movq %rdi, %rax +- shrq $PMD_SHIFT, %rax +- andq $(PTRS_PER_PMD - 1), %rax +- leaq __PAGE_KERNEL_IDENT_LARGE_EXEC(%rdi), %rdx +- leaq level2_spare_pgt(%rip), %rbx +- movq %rdx, 0(%rbx, %rax, 8) +-ident_complete: ++ addq %rbp, level2_fixmap_pgt + (507*8)(%rip) + + /* + * Fixup the kernel text+data virtual addresses. Note that +@@ -160,8 +156,8 @@ ENTRY(secondary_startup_64) + * after the boot processor executes this code. + */ + +- /* Enable PAE mode and PGE */ +- movl $(X86_CR4_PAE | X86_CR4_PGE), %eax ++ /* Enable PAE mode and PSE/PGE */ ++ movl $(X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE), %eax + movq %rax, %cr4 + + /* Setup early boot stage 4 level pagetables. */ +@@ -183,9 +179,17 @@ ENTRY(secondary_startup_64) + movl $MSR_EFER, %ecx + rdmsr + btsl $_EFER_SCE, %eax /* Enable System Call */ +- btl $20,%edi /* No Execute supported? */ ++ btl $(X86_FEATURE_NX & 31),%edi /* No Execute supported? */ + jnc 1f + btsl $_EFER_NX, %eax ++ leaq init_level4_pgt(%rip), %rdi ++#ifndef CONFIG_EFI ++ btsq $_PAGE_BIT_NX, 8*L4_PAGE_OFFSET(%rdi) ++#endif ++ btsq $_PAGE_BIT_NX, 8*L4_VMALLOC_START(%rdi) ++ btsq $_PAGE_BIT_NX, 8*L4_VMALLOC_END(%rdi) ++ btsq $_PAGE_BIT_NX, 8*L4_VMEMMAP_START(%rdi) ++ btsq $_PAGE_BIT_NX, __supported_pte_mask(%rip) + 1: wrmsr /* Make changes effective */ + + /* Setup cr0 */ +@@ -247,6 +251,7 @@ ENTRY(secondary_startup_64) + * jump. In addition we need to ensure %cs is set so we make this + * a far return. + */ ++ pax_set_fptr_mask + movq initial_code(%rip),%rax + pushq $0 # fake return address to stop unwinder + pushq $__KERNEL_CS # set correct cs +@@ -269,7 +274,7 @@ ENTRY(secondary_startup_64) + bad_address: + jmp bad_address + +- .section ".init.text","ax" ++ __INIT + #ifdef CONFIG_EARLY_PRINTK + .globl early_idt_handlers + early_idt_handlers: +@@ -314,18 +319,23 @@ ENTRY(early_idt_handler) + #endif /* EARLY_PRINTK */ + 1: hlt + jmp 1b ++ .previous + + #ifdef CONFIG_EARLY_PRINTK ++ __INITDATA + early_recursion_flag: + .long 0 ++ .previous + ++ .section .rodata,"a",@progbits + early_idt_msg: + .asciz "PANIC: early exception %02lx rip %lx:%lx error %lx cr2 %lx\n" + early_idt_ripmsg: + .asciz "RIP %s\n" ++ .previous + #endif /* CONFIG_EARLY_PRINTK */ +- .previous + ++ .section .rodata,"a",@progbits + #define NEXT_PAGE(name) \ + .balign PAGE_SIZE; \ + ENTRY(name) +@@ -338,7 +348,6 @@ ENTRY(name) + i = i + 1 ; \ + .endr + +- .data + /* + * This default setting generates an ident mapping at address 0x100000 + * and a mapping for the kernel that precisely maps virtual address +@@ -349,13 +358,41 @@ NEXT_PAGE(init_level4_pgt) + .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE + .org init_level4_pgt + L4_PAGE_OFFSET*8, 0 + .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE ++ .org init_level4_pgt + L4_VMALLOC_START*8, 0 ++ .quad level3_vmalloc_start_pgt - __START_KERNEL_map + _KERNPG_TABLE ++ .org init_level4_pgt + L4_VMALLOC_END*8, 0 ++ .quad level3_vmalloc_end_pgt - __START_KERNEL_map + _KERNPG_TABLE ++ .org init_level4_pgt + L4_VMEMMAP_START*8, 0 ++ .quad level3_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE + .org init_level4_pgt + L4_START_KERNEL*8, 0 + /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */ + .quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE + ++#ifdef CONFIG_PAX_PER_CPU_PGD ++NEXT_PAGE(cpu_pgd) ++ .rept NR_CPUS ++ .fill 512,8,0 ++ .endr ++#endif ++ + NEXT_PAGE(level3_ident_pgt) + .quad level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE ++#ifdef CONFIG_XEN + .fill 511,8,0 ++#else ++ .quad level2_ident_pgt + PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE ++ .fill 510,8,0 ++#endif ++ ++NEXT_PAGE(level3_vmalloc_start_pgt) ++ .fill 512,8,0 ++ ++NEXT_PAGE(level3_vmalloc_end_pgt) ++ .fill 512,8,0 ++ ++NEXT_PAGE(level3_vmemmap_pgt) ++ .fill L3_VMEMMAP_START,8,0 ++ .quad level2_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE + + NEXT_PAGE(level3_kernel_pgt) + .fill L3_START_KERNEL,8,0 +@@ -363,20 +400,23 @@ NEXT_PAGE(level3_kernel_pgt) + .quad level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE + .quad level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE + ++NEXT_PAGE(level2_vmemmap_pgt) ++ .fill 512,8,0 ++ + NEXT_PAGE(level2_fixmap_pgt) +- .fill 506,8,0 +- .quad level1_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE +- /* 8MB reserved for vsyscalls + a 2MB hole = 4 + 1 entries */ +- .fill 5,8,0 ++ .fill 507,8,0 ++ .quad level1_vsyscall_pgt - __START_KERNEL_map + _PAGE_TABLE ++ /* 6MB reserved for vsyscalls + a 2MB hole = 3 + 1 entries */ ++ .fill 4,8,0 + +-NEXT_PAGE(level1_fixmap_pgt) ++NEXT_PAGE(level1_vsyscall_pgt) + .fill 512,8,0 + +-NEXT_PAGE(level2_ident_pgt) +- /* Since I easily can, map the first 1G. ++ /* Since I easily can, map the first 2G. + * Don't set NX because code runs from these pages. + */ +- PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, PTRS_PER_PMD) ++NEXT_PAGE(level2_ident_pgt) ++ PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, 2*PTRS_PER_PMD) + + NEXT_PAGE(level2_kernel_pgt) + /* +@@ -389,37 +429,59 @@ NEXT_PAGE(level2_kernel_pgt) + * If you want to increase this then increase MODULES_VADDR + * too.) + */ +- PMDS(0, __PAGE_KERNEL_LARGE_EXEC, +- KERNEL_IMAGE_SIZE/PMD_SIZE) +- +-NEXT_PAGE(level2_spare_pgt) +- .fill 512, 8, 0 ++ PMDS(0, __PAGE_KERNEL_LARGE_EXEC, KERNEL_IMAGE_SIZE/PMD_SIZE) + + #undef PMDS + #undef NEXT_PAGE + +- .data ++ .align PAGE_SIZE ++ENTRY(cpu_gdt_table) ++ .rept NR_CPUS ++ .quad 0x0000000000000000 /* NULL descriptor */ ++ .quad 0x00cf9b000000ffff /* __KERNEL32_CS */ ++ .quad 0x00af9b000000ffff /* __KERNEL_CS */ ++ .quad 0x00cf93000000ffff /* __KERNEL_DS */ ++ .quad 0x00cffb000000ffff /* __USER32_CS */ ++ .quad 0x00cff3000000ffff /* __USER_DS, __USER32_DS */ ++ .quad 0x00affb000000ffff /* __USER_CS */ ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ .quad 0x00af9b000000ffff /* __KERNEXEC_KERNEL_CS */ ++#else ++ .quad 0x0 /* unused */ ++#endif ++ ++ .quad 0,0 /* TSS */ ++ .quad 0,0 /* LDT */ ++ .quad 0,0,0 /* three TLS descriptors */ ++ .quad 0x0000f40000000000 /* node/CPU stored in limit */ ++ /* asm/segment.h:GDT_ENTRIES must match this */ ++ ++ /* zero the remaining page */ ++ .fill PAGE_SIZE / 8 - GDT_ENTRIES,8,0 ++ .endr ++ + .align 16 + .globl early_gdt_descr + early_gdt_descr: + .word GDT_ENTRIES*8-1 + early_gdt_descr_base: +- .quad INIT_PER_CPU_VAR(gdt_page) ++ .quad cpu_gdt_table + + ENTRY(phys_base) + /* This must match the first entry in level2_kernel_pgt */ + .quad 0x0000000000000000 + + #include "../../x86/xen/xen-head.S" +- +- .section .bss, "aw", @nobits ++ ++ .section .rodata,"a",@progbits + .align L1_CACHE_BYTES + ENTRY(idt_table) +- .skip IDT_ENTRIES * 16 ++ .fill 512,8,0 + + .align L1_CACHE_BYTES + ENTRY(nmi_idt_table) +- .skip IDT_ENTRIES * 16 ++ .fill 512,8,0 + + __PAGE_ALIGNED_BSS + .align PAGE_SIZE +diff --git a/arch/x86/kernel/i386_ksyms_32.c b/arch/x86/kernel/i386_ksyms_32.c +index 9c3bd4a..e1d9b35 100644 +--- a/arch/x86/kernel/i386_ksyms_32.c ++++ b/arch/x86/kernel/i386_ksyms_32.c +@@ -20,8 +20,12 @@ extern void cmpxchg8b_emu(void); + EXPORT_SYMBOL(cmpxchg8b_emu); + #endif + ++EXPORT_SYMBOL_GPL(cpu_gdt_table); ++ + /* Networking helper routines. */ + EXPORT_SYMBOL(csum_partial_copy_generic); ++EXPORT_SYMBOL(csum_partial_copy_generic_to_user); ++EXPORT_SYMBOL(csum_partial_copy_generic_from_user); + + EXPORT_SYMBOL(__get_user_1); + EXPORT_SYMBOL(__get_user_2); +@@ -36,3 +40,7 @@ EXPORT_SYMBOL(strstr); + + EXPORT_SYMBOL(csum_partial); + EXPORT_SYMBOL(empty_zero_page); ++ ++#ifdef CONFIG_PAX_KERNEXEC ++EXPORT_SYMBOL(__LOAD_PHYSICAL_ADDR); ++#endif +diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c +index 2d6e649..df6e1af 100644 +--- a/arch/x86/kernel/i387.c ++++ b/arch/x86/kernel/i387.c +@@ -59,7 +59,7 @@ static inline bool interrupted_kernel_fpu_idle(void) + static inline bool interrupted_user_mode(void) + { + struct pt_regs *regs = get_irq_regs(); +- return regs && user_mode_vm(regs); ++ return regs && user_mode(regs); + } + + /* +diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c +index 36d1853..bf25736 100644 +--- a/arch/x86/kernel/i8259.c ++++ b/arch/x86/kernel/i8259.c +@@ -209,7 +209,7 @@ spurious_8259A_irq: + "spurious 8259A interrupt: IRQ%d.\n", irq); + spurious_irq_mask |= irqmask; + } +- atomic_inc(&irq_err_count); ++ atomic_inc_unchecked(&irq_err_count); + /* + * Theoretically we do not have to handle this IRQ, + * but in Linux this does not cause problems and is +diff --git a/arch/x86/kernel/init_task.c b/arch/x86/kernel/init_task.c +index 43e9ccf..44ccf6f 100644 +--- a/arch/x86/kernel/init_task.c ++++ b/arch/x86/kernel/init_task.c +@@ -20,8 +20,7 @@ static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); + * way process stacks are handled. This is done by having a special + * "init_task" linker map entry.. + */ +-union thread_union init_thread_union __init_task_data = +- { INIT_THREAD_INFO(init_task) }; ++union thread_union init_thread_union __init_task_data; + + /* + * Initial task structure. +@@ -38,5 +37,5 @@ EXPORT_SYMBOL(init_task); + * section. Since TSS's are completely CPU-local, we want them + * on exact cacheline boundaries, to eliminate cacheline ping-pong. + */ +-DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS; +- ++struct tss_struct init_tss[NR_CPUS] ____cacheline_internodealigned_in_smp = { [0 ... NR_CPUS-1] = INIT_TSS }; ++EXPORT_SYMBOL(init_tss); +diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c +index 8c96897..be66bfa 100644 +--- a/arch/x86/kernel/ioport.c ++++ b/arch/x86/kernel/ioport.c +@@ -6,6 +6,7 @@ + #include <linux/sched.h> + #include <linux/kernel.h> + #include <linux/capability.h> ++#include <linux/security.h> + #include <linux/errno.h> + #include <linux/types.h> + #include <linux/ioport.h> +@@ -28,6 +29,12 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on) + + if ((from + num <= from) || (from + num > IO_BITMAP_BITS)) + return -EINVAL; ++#ifdef CONFIG_GRKERNSEC_IO ++ if (turn_on && grsec_disable_privio) { ++ gr_handle_ioperm(); ++ return -EPERM; ++ } ++#endif + if (turn_on && !capable(CAP_SYS_RAWIO)) + return -EPERM; + +@@ -54,7 +61,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on) + * because the ->io_bitmap_max value must match the bitmap + * contents: + */ +- tss = &per_cpu(init_tss, get_cpu()); ++ tss = init_tss + get_cpu(); + + if (turn_on) + bitmap_clear(t->io_bitmap_ptr, from, num); +@@ -102,6 +109,12 @@ long sys_iopl(unsigned int level, struct pt_regs *regs) + return -EINVAL; + /* Trying to gain more privileges? */ + if (level > old) { ++#ifdef CONFIG_GRKERNSEC_IO ++ if (grsec_disable_privio) { ++ gr_handle_iopl(); ++ return -EPERM; ++ } ++#endif + if (!capable(CAP_SYS_RAWIO)) + return -EPERM; + } +diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c +index 3dafc60..aa8e9c4 100644 +--- a/arch/x86/kernel/irq.c ++++ b/arch/x86/kernel/irq.c +@@ -18,7 +18,7 @@ + #include <asm/mce.h> + #include <asm/hw_irq.h> + +-atomic_t irq_err_count; ++atomic_unchecked_t irq_err_count; + + /* Function pointer for generic interrupt vector handling */ + void (*x86_platform_ipi_callback)(void) = NULL; +@@ -121,9 +121,9 @@ int arch_show_interrupts(struct seq_file *p, int prec) + seq_printf(p, "%10u ", per_cpu(mce_poll_count, j)); + seq_printf(p, " Machine check polls\n"); + #endif +- seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count)); ++ seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read_unchecked(&irq_err_count)); + #if defined(CONFIG_X86_IO_APIC) +- seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read(&irq_mis_count)); ++ seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read_unchecked(&irq_mis_count)); + #endif + return 0; + } +@@ -164,10 +164,10 @@ u64 arch_irq_stat_cpu(unsigned int cpu) + + u64 arch_irq_stat(void) + { +- u64 sum = atomic_read(&irq_err_count); ++ u64 sum = atomic_read_unchecked(&irq_err_count); + + #ifdef CONFIG_X86_IO_APIC +- sum += atomic_read(&irq_mis_count); ++ sum += atomic_read_unchecked(&irq_mis_count); + #endif + return sum; + } +diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c +index 58b7f27..e112d08 100644 +--- a/arch/x86/kernel/irq_32.c ++++ b/arch/x86/kernel/irq_32.c +@@ -39,7 +39,7 @@ static int check_stack_overflow(void) + __asm__ __volatile__("andl %%esp,%0" : + "=r" (sp) : "0" (THREAD_SIZE - 1)); + +- return sp < (sizeof(struct thread_info) + STACK_WARN); ++ return sp < STACK_WARN; + } + + static void print_stack_overflow(void) +@@ -59,8 +59,8 @@ static inline void print_stack_overflow(void) { } + * per-CPU IRQ handling contexts (thread information and stack) + */ + union irq_ctx { +- struct thread_info tinfo; +- u32 stack[THREAD_SIZE/sizeof(u32)]; ++ unsigned long previous_esp; ++ u32 stack[THREAD_SIZE/sizeof(u32)]; + } __attribute__((aligned(THREAD_SIZE))); + + static DEFINE_PER_CPU(union irq_ctx *, hardirq_ctx); +@@ -80,10 +80,9 @@ static void call_on_stack(void *func, void *stack) + static inline int + execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq) + { +- union irq_ctx *curctx, *irqctx; ++ union irq_ctx *irqctx; + u32 *isp, arg1, arg2; + +- curctx = (union irq_ctx *) current_thread_info(); + irqctx = __this_cpu_read(hardirq_ctx); + + /* +@@ -92,16 +91,16 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq) + * handler) we can't do that and just have to keep using the + * current stack (which is the irq stack already after all) + */ +- if (unlikely(curctx == irqctx)) ++ if (unlikely((void *)current_stack_pointer - (void *)irqctx < THREAD_SIZE)) + return 0; + + /* build the stack frame on the IRQ stack */ +- isp = (u32 *) ((char *)irqctx + sizeof(*irqctx)); +- irqctx->tinfo.task = curctx->tinfo.task; +- irqctx->tinfo.previous_esp = current_stack_pointer; ++ isp = (u32 *) ((char *)irqctx + sizeof(*irqctx) - 8); ++ irqctx->previous_esp = current_stack_pointer; + +- /* Copy the preempt_count so that the [soft]irq checks work. */ +- irqctx->tinfo.preempt_count = curctx->tinfo.preempt_count; ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ __set_fs(MAKE_MM_SEG(0)); ++#endif + + if (unlikely(overflow)) + call_on_stack(print_stack_overflow, isp); +@@ -113,6 +112,11 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq) + : "0" (irq), "1" (desc), "2" (isp), + "D" (desc->handle_irq) + : "memory", "cc", "ecx"); ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ __set_fs(current_thread_info()->addr_limit); ++#endif ++ + return 1; + } + +@@ -121,29 +125,11 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq) + */ + void __cpuinit irq_ctx_init(int cpu) + { +- union irq_ctx *irqctx; +- + if (per_cpu(hardirq_ctx, cpu)) + return; + +- irqctx = page_address(alloc_pages_node(cpu_to_node(cpu), +- THREAD_FLAGS, +- THREAD_ORDER)); +- memset(&irqctx->tinfo, 0, sizeof(struct thread_info)); +- irqctx->tinfo.cpu = cpu; +- irqctx->tinfo.preempt_count = HARDIRQ_OFFSET; +- irqctx->tinfo.addr_limit = MAKE_MM_SEG(0); +- +- per_cpu(hardirq_ctx, cpu) = irqctx; +- +- irqctx = page_address(alloc_pages_node(cpu_to_node(cpu), +- THREAD_FLAGS, +- THREAD_ORDER)); +- memset(&irqctx->tinfo, 0, sizeof(struct thread_info)); +- irqctx->tinfo.cpu = cpu; +- irqctx->tinfo.addr_limit = MAKE_MM_SEG(0); +- +- per_cpu(softirq_ctx, cpu) = irqctx; ++ per_cpu(hardirq_ctx, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREAD_FLAGS, THREAD_ORDER)); ++ per_cpu(softirq_ctx, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREAD_FLAGS, THREAD_ORDER)); + + printk(KERN_DEBUG "CPU %u irqstacks, hard=%p soft=%p\n", + cpu, per_cpu(hardirq_ctx, cpu), per_cpu(softirq_ctx, cpu)); +@@ -152,7 +138,6 @@ void __cpuinit irq_ctx_init(int cpu) + asmlinkage void do_softirq(void) + { + unsigned long flags; +- struct thread_info *curctx; + union irq_ctx *irqctx; + u32 *isp; + +@@ -162,15 +147,22 @@ asmlinkage void do_softirq(void) + local_irq_save(flags); + + if (local_softirq_pending()) { +- curctx = current_thread_info(); + irqctx = __this_cpu_read(softirq_ctx); +- irqctx->tinfo.task = curctx->task; +- irqctx->tinfo.previous_esp = current_stack_pointer; ++ irqctx->previous_esp = current_stack_pointer; + + /* build the stack frame on the softirq stack */ +- isp = (u32 *) ((char *)irqctx + sizeof(*irqctx)); ++ isp = (u32 *) ((char *)irqctx + sizeof(*irqctx) - 8); ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ __set_fs(MAKE_MM_SEG(0)); ++#endif + + call_on_stack(__do_softirq, isp); ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ __set_fs(current_thread_info()->addr_limit); ++#endif ++ + /* + * Shouldn't happen, we returned above if in_interrupt(): + */ +@@ -191,7 +183,7 @@ bool handle_irq(unsigned irq, struct pt_regs *regs) + if (unlikely(!desc)) + return false; + +- if (user_mode_vm(regs) || !execute_on_irq_stack(overflow, desc, irq)) { ++ if (user_mode(regs) || !execute_on_irq_stack(overflow, desc, irq)) { + if (unlikely(overflow)) + print_stack_overflow(); + desc->handle_irq(irq, desc); +diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c +index d04d3ec..ea4b374 100644 +--- a/arch/x86/kernel/irq_64.c ++++ b/arch/x86/kernel/irq_64.c +@@ -44,7 +44,7 @@ static inline void stack_overflow_check(struct pt_regs *regs) + u64 estack_top, estack_bottom; + u64 curbase = (u64)task_stack_page(current); + +- if (user_mode_vm(regs)) ++ if (user_mode(regs)) + return; + + if (regs->sp >= curbase + sizeof(struct thread_info) + +diff --git a/arch/x86/kernel/kdebugfs.c b/arch/x86/kernel/kdebugfs.c +index 1d5d31e..ab846ed 100644 +--- a/arch/x86/kernel/kdebugfs.c ++++ b/arch/x86/kernel/kdebugfs.c +@@ -28,6 +28,8 @@ struct setup_data_node { + }; + + static ssize_t setup_data_read(struct file *file, char __user *user_buf, ++ size_t count, loff_t *ppos) __size_overflow(3); ++static ssize_t setup_data_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) + { + struct setup_data_node *node = file->private_data; +diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c +index 8bfb614..2b3b35f 100644 +--- a/arch/x86/kernel/kgdb.c ++++ b/arch/x86/kernel/kgdb.c +@@ -127,11 +127,11 @@ char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs) + #ifdef CONFIG_X86_32 + switch (regno) { + case GDB_SS: +- if (!user_mode_vm(regs)) ++ if (!user_mode(regs)) + *(unsigned long *)mem = __KERNEL_DS; + break; + case GDB_SP: +- if (!user_mode_vm(regs)) ++ if (!user_mode(regs)) + *(unsigned long *)mem = kernel_stack_pointer(regs); + break; + case GDB_GS: +@@ -476,12 +476,12 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code, + case 'k': + /* clear the trace bit */ + linux_regs->flags &= ~X86_EFLAGS_TF; +- atomic_set(&kgdb_cpu_doing_single_step, -1); ++ atomic_set_unchecked(&kgdb_cpu_doing_single_step, -1); + + /* set the trace bit if we're stepping */ + if (remcomInBuffer[0] == 's') { + linux_regs->flags |= X86_EFLAGS_TF; +- atomic_set(&kgdb_cpu_doing_single_step, ++ atomic_set_unchecked(&kgdb_cpu_doing_single_step, + raw_smp_processor_id()); + } + +@@ -546,7 +546,7 @@ static int __kgdb_notify(struct die_args *args, unsigned long cmd) + + switch (cmd) { + case DIE_DEBUG: +- if (atomic_read(&kgdb_cpu_doing_single_step) != -1) { ++ if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1) { + if (user_mode(regs)) + return single_step_cont(regs, args); + break; +diff --git a/arch/x86/kernel/kprobes-opt.c b/arch/x86/kernel/kprobes-opt.c +index c5e410e..da6aaf9 100644 +--- a/arch/x86/kernel/kprobes-opt.c ++++ b/arch/x86/kernel/kprobes-opt.c +@@ -338,7 +338,7 @@ int __kprobes arch_prepare_optimized_kprobe(struct optimized_kprobe *op) + * Verify if the address gap is in 2GB range, because this uses + * a relative jump. + */ +- rel = (long)op->optinsn.insn - (long)op->kp.addr + RELATIVEJUMP_SIZE; ++ rel = (long)op->optinsn.insn - ktla_ktva((long)op->kp.addr) + RELATIVEJUMP_SIZE; + if (abs(rel) > 0x7fffffff) + return -ERANGE; + +@@ -359,11 +359,11 @@ int __kprobes arch_prepare_optimized_kprobe(struct optimized_kprobe *op) + synthesize_set_arg1(buf + TMPL_MOVE_IDX, (unsigned long)op); + + /* Set probe function call */ +- synthesize_relcall(buf + TMPL_CALL_IDX, optimized_callback); ++ synthesize_relcall(buf + TMPL_CALL_IDX, ktla_ktva(optimized_callback)); + + /* Set returning jmp instruction at the tail of out-of-line buffer */ + synthesize_reljump(buf + TMPL_END_IDX + op->optinsn.size, +- (u8 *)op->kp.addr + op->optinsn.size); ++ (u8 *)ktla_ktva(op->kp.addr) + op->optinsn.size); + + flush_icache_range((unsigned long) buf, + (unsigned long) buf + TMPL_END_IDX + +@@ -385,7 +385,7 @@ static void __kprobes setup_optimize_kprobe(struct text_poke_param *tprm, + ((long)op->kp.addr + RELATIVEJUMP_SIZE)); + + /* Backup instructions which will be replaced by jump address */ +- memcpy(op->optinsn.copied_insn, op->kp.addr + INT3_SIZE, ++ memcpy(op->optinsn.copied_insn, ktla_ktva(op->kp.addr) + INT3_SIZE, + RELATIVE_ADDR_SIZE); + + insn_buf[0] = RELATIVEJUMP_OPCODE; +diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c +index e213fc8..d783ba4 100644 +--- a/arch/x86/kernel/kprobes.c ++++ b/arch/x86/kernel/kprobes.c +@@ -120,8 +120,11 @@ static void __kprobes __synthesize_relative_insn(void *from, void *to, u8 op) + } __attribute__((packed)) *insn; + + insn = (struct __arch_relative_insn *)from; ++ ++ pax_open_kernel(); + insn->raddr = (s32)((long)(to) - ((long)(from) + 5)); + insn->op = op; ++ pax_close_kernel(); + } + + /* Insert a jump instruction at address 'from', which jumps to address 'to'.*/ +@@ -164,7 +167,7 @@ int __kprobes can_boost(kprobe_opcode_t *opcodes) + kprobe_opcode_t opcode; + kprobe_opcode_t *orig_opcodes = opcodes; + +- if (search_exception_tables((unsigned long)opcodes)) ++ if (search_exception_tables(ktva_ktla((unsigned long)opcodes))) + return 0; /* Page fault may occur on this address. */ + + retry: +@@ -332,7 +335,9 @@ int __kprobes __copy_instruction(u8 *dest, u8 *src) + /* Another subsystem puts a breakpoint, failed to recover */ + if (insn.opcode.bytes[0] == BREAKPOINT_INSTRUCTION) + return 0; ++ pax_open_kernel(); + memcpy(dest, insn.kaddr, insn.length); ++ pax_close_kernel(); + + #ifdef CONFIG_X86_64 + if (insn_rip_relative(&insn)) { +@@ -355,7 +360,9 @@ int __kprobes __copy_instruction(u8 *dest, u8 *src) + newdisp = (u8 *) src + (s64) insn.displacement.value - (u8 *) dest; + BUG_ON((s64) (s32) newdisp != newdisp); /* Sanity check. */ + disp = (u8 *) dest + insn_offset_displacement(&insn); ++ pax_open_kernel(); + *(s32 *) disp = (s32) newdisp; ++ pax_close_kernel(); + } + #endif + return insn.length; +@@ -485,7 +492,7 @@ setup_singlestep(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *k + * nor set current_kprobe, because it doesn't use single + * stepping. + */ +- regs->ip = (unsigned long)p->ainsn.insn; ++ regs->ip = ktva_ktla((unsigned long)p->ainsn.insn); + preempt_enable_no_resched(); + return; + } +@@ -504,7 +511,7 @@ setup_singlestep(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *k + if (p->opcode == BREAKPOINT_INSTRUCTION) + regs->ip = (unsigned long)p->addr; + else +- regs->ip = (unsigned long)p->ainsn.insn; ++ regs->ip = ktva_ktla((unsigned long)p->ainsn.insn); + } + + /* +@@ -583,7 +590,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs) + setup_singlestep(p, regs, kcb, 0); + return 1; + } +- } else if (*addr != BREAKPOINT_INSTRUCTION) { ++ } else if (*(kprobe_opcode_t *)ktla_ktva((unsigned long)addr) != BREAKPOINT_INSTRUCTION) { + /* + * The breakpoint instruction was removed right + * after we hit it. Another cpu has removed +@@ -628,6 +635,9 @@ static void __used __kprobes kretprobe_trampoline_holder(void) + " movq %rax, 152(%rsp)\n" + RESTORE_REGS_STRING + " popfq\n" ++#ifdef KERNEXEC_PLUGIN ++ " btsq $63,(%rsp)\n" ++#endif + #else + " pushf\n" + SAVE_REGS_STRING +@@ -765,7 +775,7 @@ static void __kprobes + resume_execution(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *kcb) + { + unsigned long *tos = stack_addr(regs); +- unsigned long copy_ip = (unsigned long)p->ainsn.insn; ++ unsigned long copy_ip = ktva_ktla((unsigned long)p->ainsn.insn); + unsigned long orig_ip = (unsigned long)p->addr; + kprobe_opcode_t *insn = p->ainsn.insn; + +@@ -947,7 +957,7 @@ kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, void *d + struct die_args *args = data; + int ret = NOTIFY_DONE; + +- if (args->regs && user_mode_vm(args->regs)) ++ if (args->regs && user_mode(args->regs)) + return ret; + + switch (val) { +diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c +index ebc9873..1b9724b 100644 +--- a/arch/x86/kernel/ldt.c ++++ b/arch/x86/kernel/ldt.c +@@ -66,13 +66,13 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload) + if (reload) { + #ifdef CONFIG_SMP + preempt_disable(); +- load_LDT(pc); ++ load_LDT_nolock(pc); + if (!cpumask_equal(mm_cpumask(current->mm), + cpumask_of(smp_processor_id()))) + smp_call_function(flush_ldt, current->mm, 1); + preempt_enable(); + #else +- load_LDT(pc); ++ load_LDT_nolock(pc); + #endif + } + if (oldsize) { +@@ -94,7 +94,7 @@ static inline int copy_ldt(mm_context_t *new, mm_context_t *old) + return err; + + for (i = 0; i < old->size; i++) +- write_ldt_entry(new->ldt, i, old->ldt + i * LDT_ENTRY_SIZE); ++ write_ldt_entry(new->ldt, i, old->ldt + i); + return 0; + } + +@@ -115,6 +115,24 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm) + retval = copy_ldt(&mm->context, &old_mm->context); + mutex_unlock(&old_mm->context.lock); + } ++ ++ if (tsk == current) { ++ mm->context.vdso = 0; ++ ++#ifdef CONFIG_X86_32 ++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) ++ mm->context.user_cs_base = 0UL; ++ mm->context.user_cs_limit = ~0UL; ++ ++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP) ++ cpus_clear(mm->context.cpu_user_cs_mask); ++#endif ++ ++#endif ++#endif ++ ++ } ++ + return retval; + } + +@@ -229,6 +247,13 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode) + } + } + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (ldt_info.contents & MODIFY_LDT_CONTENTS_CODE)) { ++ error = -EINVAL; ++ goto out_unlock; ++ } ++#endif ++ + fill_ldt(&ldt, &ldt_info); + if (oldmode) + ldt.avl = 0; +diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c +index 5b19e4d..6476a76 100644 +--- a/arch/x86/kernel/machine_kexec_32.c ++++ b/arch/x86/kernel/machine_kexec_32.c +@@ -26,7 +26,7 @@ + #include <asm/cacheflush.h> + #include <asm/debugreg.h> + +-static void set_idt(void *newidt, __u16 limit) ++static void set_idt(struct desc_struct *newidt, __u16 limit) + { + struct desc_ptr curidt; + +@@ -38,7 +38,7 @@ static void set_idt(void *newidt, __u16 limit) + } + + +-static void set_gdt(void *newgdt, __u16 limit) ++static void set_gdt(struct desc_struct *newgdt, __u16 limit) + { + struct desc_ptr curgdt; + +@@ -216,7 +216,7 @@ void machine_kexec(struct kimage *image) + } + + control_page = page_address(image->control_code_page); +- memcpy(control_page, relocate_kernel, KEXEC_CONTROL_CODE_MAX_SIZE); ++ memcpy(control_page, (void *)ktla_ktva((unsigned long)relocate_kernel), KEXEC_CONTROL_CODE_MAX_SIZE); + + relocate_kernel_ptr = control_page; + page_list[PA_CONTROL_PAGE] = __pa(control_page); +diff --git a/arch/x86/kernel/microcode_intel.c b/arch/x86/kernel/microcode_intel.c +index 0327e2b..e43737b 100644 +--- a/arch/x86/kernel/microcode_intel.c ++++ b/arch/x86/kernel/microcode_intel.c +@@ -430,13 +430,13 @@ static enum ucode_state request_microcode_fw(int cpu, struct device *device) + + static int get_ucode_user(void *to, const void *from, size_t n) + { +- return copy_from_user(to, from, n); ++ return copy_from_user(to, (const void __force_user *)from, n); + } + + static enum ucode_state + request_microcode_user(int cpu, const void __user *buf, size_t size) + { +- return generic_load_microcode(cpu, (void *)buf, size, &get_ucode_user); ++ return generic_load_microcode(cpu, (__force_kernel void *)buf, size, &get_ucode_user); + } + + static void microcode_fini_cpu(int cpu) +diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c +index f21fd94..61565cd 100644 +--- a/arch/x86/kernel/module.c ++++ b/arch/x86/kernel/module.c +@@ -35,15 +35,60 @@ + #define DEBUGP(fmt...) + #endif + +-void *module_alloc(unsigned long size) ++static inline void *__module_alloc(unsigned long size, pgprot_t prot) + { +- if (PAGE_ALIGN(size) > MODULES_LEN) ++ if (size == 0 || PAGE_ALIGN(size) > MODULES_LEN) + return NULL; + return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END, +- GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC, ++ GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, prot, + -1, __builtin_return_address(0)); + } + ++void *module_alloc(unsigned long size) ++{ ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ return __module_alloc(size, PAGE_KERNEL); ++#else ++ return __module_alloc(size, PAGE_KERNEL_EXEC); ++#endif ++ ++} ++ ++#ifdef CONFIG_PAX_KERNEXEC ++#ifdef CONFIG_X86_32 ++void *module_alloc_exec(unsigned long size) ++{ ++ struct vm_struct *area; ++ ++ if (size == 0) ++ return NULL; ++ ++ area = __get_vm_area(size, VM_ALLOC, (unsigned long)&MODULES_EXEC_VADDR, (unsigned long)&MODULES_EXEC_END); ++ return area ? area->addr : NULL; ++} ++EXPORT_SYMBOL(module_alloc_exec); ++ ++void module_free_exec(struct module *mod, void *module_region) ++{ ++ vunmap(module_region); ++} ++EXPORT_SYMBOL(module_free_exec); ++#else ++void module_free_exec(struct module *mod, void *module_region) ++{ ++ module_free(mod, module_region); ++} ++EXPORT_SYMBOL(module_free_exec); ++ ++void *module_alloc_exec(unsigned long size) ++{ ++ return __module_alloc(size, PAGE_KERNEL_RX); ++} ++EXPORT_SYMBOL(module_alloc_exec); ++#endif ++#endif ++ + #ifdef CONFIG_X86_32 + int apply_relocate(Elf32_Shdr *sechdrs, + const char *strtab, +@@ -54,14 +99,16 @@ int apply_relocate(Elf32_Shdr *sechdrs, + unsigned int i; + Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr; + Elf32_Sym *sym; +- uint32_t *location; ++ uint32_t *plocation, location; + + DEBUGP("Applying relocate section %u to %u\n", relsec, + sechdrs[relsec].sh_info); + for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { + /* This is where to make the change */ +- location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr +- + rel[i].r_offset; ++ plocation = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr + rel[i].r_offset; ++ location = (uint32_t)plocation; ++ if (sechdrs[sechdrs[relsec].sh_info].sh_flags & SHF_EXECINSTR) ++ plocation = ktla_ktva((void *)plocation); + /* This is the symbol it is referring to. Note that all + undefined symbols have been resolved. */ + sym = (Elf32_Sym *)sechdrs[symindex].sh_addr +@@ -70,11 +117,15 @@ int apply_relocate(Elf32_Shdr *sechdrs, + switch (ELF32_R_TYPE(rel[i].r_info)) { + case R_386_32: + /* We add the value into the location given */ +- *location += sym->st_value; ++ pax_open_kernel(); ++ *plocation += sym->st_value; ++ pax_close_kernel(); + break; + case R_386_PC32: + /* Add the value, subtract its postition */ +- *location += sym->st_value - (uint32_t)location; ++ pax_open_kernel(); ++ *plocation += sym->st_value - location; ++ pax_close_kernel(); + break; + default: + printk(KERN_ERR "module %s: Unknown relocation: %u\n", +@@ -119,21 +170,30 @@ int apply_relocate_add(Elf64_Shdr *sechdrs, + case R_X86_64_NONE: + break; + case R_X86_64_64: ++ pax_open_kernel(); + *(u64 *)loc = val; ++ pax_close_kernel(); + break; + case R_X86_64_32: ++ pax_open_kernel(); + *(u32 *)loc = val; ++ pax_close_kernel(); + if (val != *(u32 *)loc) + goto overflow; + break; + case R_X86_64_32S: ++ pax_open_kernel(); + *(s32 *)loc = val; ++ pax_close_kernel(); + if ((s64)val != *(s32 *)loc) + goto overflow; + break; + case R_X86_64_PC32: + val -= (u64)loc; ++ pax_open_kernel(); + *(u32 *)loc = val; ++ pax_close_kernel(); ++ + #if 0 + if ((s64)val != *(s32 *)loc) + goto overflow; +diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c +index 32856fa..ce95eaa 100644 +--- a/arch/x86/kernel/nmi.c ++++ b/arch/x86/kernel/nmi.c +@@ -507,6 +507,17 @@ static inline void nmi_nesting_postprocess(void) + dotraplinkage notrace __kprobes void + do_nmi(struct pt_regs *regs, long error_code) + { ++ ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) ++ if (!user_mode(regs)) { ++ unsigned long cs = regs->cs & 0xFFFF; ++ unsigned long ip = ktva_ktla(regs->ip); ++ ++ if ((cs == __KERNEL_CS || cs == __KERNEXEC_KERNEL_CS) && ip <= (unsigned long)_etext) ++ regs->ip = ip; ++ } ++#endif ++ + nmi_nesting_preprocess(regs); + + nmi_enter(); +diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c +index 676b8c7..870ba04 100644 +--- a/arch/x86/kernel/paravirt-spinlocks.c ++++ b/arch/x86/kernel/paravirt-spinlocks.c +@@ -13,7 +13,7 @@ default_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags) + arch_spin_lock(lock); + } + +-struct pv_lock_ops pv_lock_ops = { ++struct pv_lock_ops pv_lock_ops __read_only = { + #ifdef CONFIG_SMP + .spin_is_locked = __ticket_spin_is_locked, + .spin_is_contended = __ticket_spin_is_contended, +diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c +index ab13760..01218e0 100644 +--- a/arch/x86/kernel/paravirt.c ++++ b/arch/x86/kernel/paravirt.c +@@ -55,6 +55,9 @@ u64 _paravirt_ident_64(u64 x) + { + return x; + } ++#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE) ++PV_CALLEE_SAVE_REGS_THUNK(_paravirt_ident_64); ++#endif + + void __init default_banner(void) + { +@@ -147,15 +150,19 @@ unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf, + if (opfunc == NULL) + /* If there's no function, patch it with a ud2a (BUG) */ + ret = paravirt_patch_insns(insnbuf, len, ud2a, ud2a+sizeof(ud2a)); +- else if (opfunc == _paravirt_nop) ++ else if (opfunc == (void *)_paravirt_nop) + /* If the operation is a nop, then nop the callsite */ + ret = paravirt_patch_nop(); + + /* identity functions just return their single argument */ +- else if (opfunc == _paravirt_ident_32) ++ else if (opfunc == (void *)_paravirt_ident_32) + ret = paravirt_patch_ident_32(insnbuf, len); +- else if (opfunc == _paravirt_ident_64) ++ else if (opfunc == (void *)_paravirt_ident_64) + ret = paravirt_patch_ident_64(insnbuf, len); ++#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE) ++ else if (opfunc == (void *)__raw_callee_save__paravirt_ident_64) ++ ret = paravirt_patch_ident_64(insnbuf, len); ++#endif + + else if (type == PARAVIRT_PATCH(pv_cpu_ops.iret) || + type == PARAVIRT_PATCH(pv_cpu_ops.irq_enable_sysexit) || +@@ -180,7 +187,7 @@ unsigned paravirt_patch_insns(void *insnbuf, unsigned len, + if (insn_len > len || start == NULL) + insn_len = len; + else +- memcpy(insnbuf, start, insn_len); ++ memcpy(insnbuf, ktla_ktva(start), insn_len); + + return insn_len; + } +@@ -304,7 +311,7 @@ void arch_flush_lazy_mmu_mode(void) + preempt_enable(); + } + +-struct pv_info pv_info = { ++struct pv_info pv_info __read_only = { + .name = "bare hardware", + .paravirt_enabled = 0, + .kernel_rpl = 0, +@@ -315,16 +322,16 @@ struct pv_info pv_info = { + #endif + }; + +-struct pv_init_ops pv_init_ops = { ++struct pv_init_ops pv_init_ops __read_only = { + .patch = native_patch, + }; + +-struct pv_time_ops pv_time_ops = { ++struct pv_time_ops pv_time_ops __read_only = { + .sched_clock = native_sched_clock, + .steal_clock = native_steal_clock, + }; + +-struct pv_irq_ops pv_irq_ops = { ++struct pv_irq_ops pv_irq_ops __read_only = { + .save_fl = __PV_IS_CALLEE_SAVE(native_save_fl), + .restore_fl = __PV_IS_CALLEE_SAVE(native_restore_fl), + .irq_disable = __PV_IS_CALLEE_SAVE(native_irq_disable), +@@ -336,7 +343,7 @@ struct pv_irq_ops pv_irq_ops = { + #endif + }; + +-struct pv_cpu_ops pv_cpu_ops = { ++struct pv_cpu_ops pv_cpu_ops __read_only = { + .cpuid = native_cpuid, + .get_debugreg = native_get_debugreg, + .set_debugreg = native_set_debugreg, +@@ -397,21 +404,26 @@ struct pv_cpu_ops pv_cpu_ops = { + .end_context_switch = paravirt_nop, + }; + +-struct pv_apic_ops pv_apic_ops = { ++struct pv_apic_ops pv_apic_ops __read_only = { + #ifdef CONFIG_X86_LOCAL_APIC + .startup_ipi_hook = paravirt_nop, + #endif + }; + +-#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE) ++#ifdef CONFIG_X86_32 ++#ifdef CONFIG_X86_PAE ++/* 64-bit pagetable entries */ ++#define PTE_IDENT PV_CALLEE_SAVE(_paravirt_ident_64) ++#else + /* 32-bit pagetable entries */ + #define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_32) ++#endif + #else + /* 64-bit pagetable entries */ + #define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_64) + #endif + +-struct pv_mmu_ops pv_mmu_ops = { ++struct pv_mmu_ops pv_mmu_ops __read_only = { + + .read_cr2 = native_read_cr2, + .write_cr2 = native_write_cr2, +@@ -461,6 +473,7 @@ struct pv_mmu_ops pv_mmu_ops = { + .make_pud = PTE_IDENT, + + .set_pgd = native_set_pgd, ++ .set_pgd_batched = native_set_pgd_batched, + #endif + #endif /* PAGETABLE_LEVELS >= 3 */ + +@@ -480,6 +493,12 @@ struct pv_mmu_ops pv_mmu_ops = { + }, + + .set_fixmap = native_set_fixmap, ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ .pax_open_kernel = native_pax_open_kernel, ++ .pax_close_kernel = native_pax_close_kernel, ++#endif ++ + }; + + EXPORT_SYMBOL_GPL(pv_time_ops); +diff --git a/arch/x86/kernel/pci-iommu_table.c b/arch/x86/kernel/pci-iommu_table.c +index 35ccf75..7a15747 100644 +--- a/arch/x86/kernel/pci-iommu_table.c ++++ b/arch/x86/kernel/pci-iommu_table.c +@@ -2,7 +2,7 @@ + #include <asm/iommu_table.h> + #include <linux/string.h> + #include <linux/kallsyms.h> +- ++#include <linux/sched.h> + + #define DEBUG 1 + +diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c +index 1d92a5a..7bc8c29 100644 +--- a/arch/x86/kernel/process.c ++++ b/arch/x86/kernel/process.c +@@ -69,16 +69,33 @@ void free_thread_xstate(struct task_struct *tsk) + + void free_thread_info(struct thread_info *ti) + { +- free_thread_xstate(ti->task); + free_pages((unsigned long)ti, THREAD_ORDER); + } + ++static struct kmem_cache *task_struct_cachep; ++ + void arch_task_cache_init(void) + { +- task_xstate_cachep = +- kmem_cache_create("task_xstate", xstate_size, ++ /* create a slab on which task_structs can be allocated */ ++ task_struct_cachep = ++ kmem_cache_create("task_struct", sizeof(struct task_struct), ++ ARCH_MIN_TASKALIGN, SLAB_PANIC | SLAB_NOTRACK, NULL); ++ ++ task_xstate_cachep = ++ kmem_cache_create("task_xstate", xstate_size, + __alignof__(union thread_xstate), +- SLAB_PANIC | SLAB_NOTRACK, NULL); ++ SLAB_PANIC | SLAB_NOTRACK | SLAB_USERCOPY, NULL); ++} ++ ++struct task_struct *alloc_task_struct_node(int node) ++{ ++ return kmem_cache_alloc_node(task_struct_cachep, GFP_KERNEL, node); ++} ++ ++void free_task_struct(struct task_struct *task) ++{ ++ free_thread_xstate(task); ++ kmem_cache_free(task_struct_cachep, task); + } + + /* +@@ -91,7 +108,7 @@ void exit_thread(void) + unsigned long *bp = t->io_bitmap_ptr; + + if (bp) { +- struct tss_struct *tss = &per_cpu(init_tss, get_cpu()); ++ struct tss_struct *tss = init_tss + get_cpu(); + + t->io_bitmap_ptr = NULL; + clear_thread_flag(TIF_IO_BITMAP); +@@ -127,7 +144,7 @@ void show_regs_common(void) + + printk(KERN_CONT "\n"); + printk(KERN_DEFAULT "Pid: %d, comm: %.20s %s %s %.*s", +- current->pid, current->comm, print_tainted(), ++ task_pid_nr(current), current->comm, print_tainted(), + init_utsname()->release, + (int)strcspn(init_utsname()->version, " "), + init_utsname()->version); +@@ -141,6 +158,9 @@ void flush_thread(void) + { + struct task_struct *tsk = current; + ++#if defined(CONFIG_X86_32) && !defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_PAX_MEMORY_UDEREF) ++ loadsegment(gs, 0); ++#endif + flush_ptrace_hw_breakpoint(tsk); + memset(tsk->thread.tls_array, 0, sizeof(tsk->thread.tls_array)); + /* +@@ -303,10 +323,10 @@ int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags) + regs.di = (unsigned long) arg; + + #ifdef CONFIG_X86_32 +- regs.ds = __USER_DS; +- regs.es = __USER_DS; ++ regs.ds = __KERNEL_DS; ++ regs.es = __KERNEL_DS; + regs.fs = __KERNEL_PERCPU; +- regs.gs = __KERNEL_STACK_CANARY; ++ savesegment(gs, regs.gs); + #else + regs.ss = __KERNEL_DS; + #endif +@@ -392,7 +412,7 @@ static void __exit_idle(void) + void exit_idle(void) + { + /* idle loop has pid 0 */ +- if (current->pid) ++ if (task_pid_nr(current)) + return; + __exit_idle(); + } +@@ -501,7 +521,7 @@ bool set_pm_idle_to_default(void) + + return ret; + } +-void stop_this_cpu(void *dummy) ++__noreturn void stop_this_cpu(void *dummy) + { + local_irq_disable(); + /* +@@ -743,16 +763,37 @@ static int __init idle_setup(char *str) + } + early_param("idle", idle_setup); + +-unsigned long arch_align_stack(unsigned long sp) ++#ifdef CONFIG_PAX_RANDKSTACK ++void pax_randomize_kstack(struct pt_regs *regs) + { +- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) +- sp -= get_random_int() % 8192; +- return sp & ~0xf; +-} ++ struct thread_struct *thread = &current->thread; ++ unsigned long time; + +-unsigned long arch_randomize_brk(struct mm_struct *mm) +-{ +- unsigned long range_end = mm->brk + 0x02000000; +- return randomize_range(mm->brk, range_end, 0) ? : mm->brk; +-} ++ if (!randomize_va_space) ++ return; ++ ++ if (v8086_mode(regs)) ++ return; + ++ rdtscl(time); ++ ++ /* P4 seems to return a 0 LSB, ignore it */ ++#ifdef CONFIG_MPENTIUM4 ++ time &= 0x3EUL; ++ time <<= 2; ++#elif defined(CONFIG_X86_64) ++ time &= 0xFUL; ++ time <<= 4; ++#else ++ time &= 0x1FUL; ++ time <<= 3; ++#endif ++ ++ thread->sp0 ^= time; ++ load_sp0(init_tss + smp_processor_id(), thread); ++ ++#ifdef CONFIG_X86_64 ++ percpu_write(kernel_stack, thread->sp0); ++#endif ++} ++#endif +diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c +index ae68473..7b0bb71 100644 +--- a/arch/x86/kernel/process_32.c ++++ b/arch/x86/kernel/process_32.c +@@ -64,6 +64,7 @@ asmlinkage void ret_from_fork(void) __asm__("ret_from_fork"); + unsigned long thread_saved_pc(struct task_struct *tsk) + { + return ((unsigned long *)tsk->thread.sp)[3]; ++//XXX return tsk->thread.eip; + } + + void __show_regs(struct pt_regs *regs, int all) +@@ -73,15 +74,14 @@ void __show_regs(struct pt_regs *regs, int all) + unsigned long sp; + unsigned short ss, gs; + +- if (user_mode_vm(regs)) { ++ if (user_mode(regs)) { + sp = regs->sp; + ss = regs->ss & 0xffff; +- gs = get_user_gs(regs); + } else { + sp = kernel_stack_pointer(regs); + savesegment(ss, ss); +- savesegment(gs, gs); + } ++ gs = get_user_gs(regs); + + show_regs_common(); + +@@ -143,13 +143,14 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, + struct task_struct *tsk; + int err; + +- childregs = task_pt_regs(p); ++ childregs = task_stack_page(p) + THREAD_SIZE - sizeof(struct pt_regs) - 8; + *childregs = *regs; + childregs->ax = 0; + childregs->sp = sp; + + p->thread.sp = (unsigned long) childregs; + p->thread.sp0 = (unsigned long) (childregs+1); ++ p->tinfo.lowest_stack = (unsigned long)task_stack_page(p); + + p->thread.ip = (unsigned long) ret_from_fork; + +@@ -240,7 +241,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) + struct thread_struct *prev = &prev_p->thread, + *next = &next_p->thread; + int cpu = smp_processor_id(); +- struct tss_struct *tss = &per_cpu(init_tss, cpu); ++ struct tss_struct *tss = init_tss + cpu; + fpu_switch_t fpu; + + /* never put a printk in __switch_to... printk() calls wake_up*() indirectly */ +@@ -264,6 +265,10 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) + */ + lazy_save_gs(prev->gs); + ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ __set_fs(task_thread_info(next_p)->addr_limit); ++#endif ++ + /* + * Load the per-thread Thread-Local Storage descriptor. + */ +@@ -294,6 +299,9 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) + */ + arch_end_context_switch(next_p); + ++ percpu_write(current_task, next_p); ++ percpu_write(current_tinfo, &next_p->tinfo); ++ + /* + * Restore %gs if needed (which is common) + */ +@@ -302,8 +310,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) + + switch_fpu_finish(next_p, fpu); + +- percpu_write(current_task, next_p); +- + return prev_p; + } + +@@ -333,4 +339,3 @@ unsigned long get_wchan(struct task_struct *p) + } while (count++ < 16); + return 0; + } +- +diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c +index 43d8b48..c45d566 100644 +--- a/arch/x86/kernel/process_64.c ++++ b/arch/x86/kernel/process_64.c +@@ -162,8 +162,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, + struct pt_regs *childregs; + struct task_struct *me = current; + +- childregs = ((struct pt_regs *) +- (THREAD_SIZE + task_stack_page(p))) - 1; ++ childregs = task_stack_page(p) + THREAD_SIZE - sizeof(struct pt_regs) - 16; + *childregs = *regs; + + childregs->ax = 0; +@@ -175,6 +174,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, + p->thread.sp = (unsigned long) childregs; + p->thread.sp0 = (unsigned long) (childregs+1); + p->thread.usersp = me->thread.usersp; ++ p->tinfo.lowest_stack = (unsigned long)task_stack_page(p); + + set_tsk_thread_flag(p, TIF_FORK); + +@@ -280,7 +280,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) + struct thread_struct *prev = &prev_p->thread; + struct thread_struct *next = &next_p->thread; + int cpu = smp_processor_id(); +- struct tss_struct *tss = &per_cpu(init_tss, cpu); ++ struct tss_struct *tss = init_tss + cpu; + unsigned fsindex, gsindex; + fpu_switch_t fpu; + +@@ -362,10 +362,9 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) + prev->usersp = percpu_read(old_rsp); + percpu_write(old_rsp, next->usersp); + percpu_write(current_task, next_p); ++ percpu_write(current_tinfo, &next_p->tinfo); + +- percpu_write(kernel_stack, +- (unsigned long)task_stack_page(next_p) + +- THREAD_SIZE - KERNEL_STACK_OFFSET); ++ percpu_write(kernel_stack, next->sp0); + + /* + * Now maybe reload the debug registers and handle I/O bitmaps +@@ -434,12 +433,11 @@ unsigned long get_wchan(struct task_struct *p) + if (!p || p == current || p->state == TASK_RUNNING) + return 0; + stack = (unsigned long)task_stack_page(p); +- if (p->thread.sp < stack || p->thread.sp >= stack+THREAD_SIZE) ++ if (p->thread.sp < stack || p->thread.sp > stack+THREAD_SIZE-16-sizeof(u64)) + return 0; + fp = *(u64 *)(p->thread.sp); + do { +- if (fp < (unsigned long)stack || +- fp >= (unsigned long)stack+THREAD_SIZE) ++ if (fp < stack || fp > stack+THREAD_SIZE-16-sizeof(u64)) + return 0; + ip = *(u64 *)(fp+8); + if (!in_sched_functions(ip)) +diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c +index cf11783..e7ce551 100644 +--- a/arch/x86/kernel/ptrace.c ++++ b/arch/x86/kernel/ptrace.c +@@ -824,7 +824,7 @@ long arch_ptrace(struct task_struct *child, long request, + unsigned long addr, unsigned long data) + { + int ret; +- unsigned long __user *datap = (unsigned long __user *)data; ++ unsigned long __user *datap = (__force unsigned long __user *)data; + + switch (request) { + /* read the word at location addr in the USER area. */ +@@ -909,14 +909,14 @@ long arch_ptrace(struct task_struct *child, long request, + if ((int) addr < 0) + return -EIO; + ret = do_get_thread_area(child, addr, +- (struct user_desc __user *)data); ++ (__force struct user_desc __user *) data); + break; + + case PTRACE_SET_THREAD_AREA: + if ((int) addr < 0) + return -EIO; + ret = do_set_thread_area(child, addr, +- (struct user_desc __user *)data, 0); ++ (__force struct user_desc __user *) data, 0); + break; + #endif + +@@ -1426,7 +1426,7 @@ static void fill_sigtrap_info(struct task_struct *tsk, + memset(info, 0, sizeof(*info)); + info->si_signo = SIGTRAP; + info->si_code = si_code; +- info->si_addr = user_mode_vm(regs) ? (void __user *)regs->ip : NULL; ++ info->si_addr = user_mode(regs) ? (__force void __user *)regs->ip : NULL; + } + + void user_single_step_siginfo(struct task_struct *tsk, +@@ -1455,6 +1455,10 @@ void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, + # define IS_IA32 0 + #endif + ++#ifdef CONFIG_GRKERNSEC_SETXID ++extern void gr_delayed_cred_worker(void); ++#endif ++ + /* + * We must return the syscall number to actually look up in the table. + * This can be -1L to skip running any syscall at all. +@@ -1463,6 +1467,11 @@ long syscall_trace_enter(struct pt_regs *regs) + { + long ret = 0; + ++#ifdef CONFIG_GRKERNSEC_SETXID ++ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID))) ++ gr_delayed_cred_worker(); ++#endif ++ + /* + * If we stepped into a sysenter/syscall insn, it trapped in + * kernel mode; do_debug() cleared TF and set TIF_SINGLESTEP. +@@ -1506,6 +1515,11 @@ void syscall_trace_leave(struct pt_regs *regs) + { + bool step; + ++#ifdef CONFIG_GRKERNSEC_SETXID ++ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID))) ++ gr_delayed_cred_worker(); ++#endif ++ + audit_syscall_exit(regs); + + if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT))) +diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c +index 42eb330..139955c 100644 +--- a/arch/x86/kernel/pvclock.c ++++ b/arch/x86/kernel/pvclock.c +@@ -81,11 +81,11 @@ unsigned long pvclock_tsc_khz(struct pvclock_vcpu_time_info *src) + return pv_tsc_khz; + } + +-static atomic64_t last_value = ATOMIC64_INIT(0); ++static atomic64_unchecked_t last_value = ATOMIC64_INIT(0); + + void pvclock_resume(void) + { +- atomic64_set(&last_value, 0); ++ atomic64_set_unchecked(&last_value, 0); + } + + cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src) +@@ -121,11 +121,11 @@ cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src) + * updating at the same time, and one of them could be slightly behind, + * making the assumption that last_value always go forward fail to hold. + */ +- last = atomic64_read(&last_value); ++ last = atomic64_read_unchecked(&last_value); + do { + if (ret < last) + return last; +- last = atomic64_cmpxchg(&last_value, last, ret); ++ last = atomic64_cmpxchg_unchecked(&last_value, last, ret); + } while (unlikely(last != ret)); + + return ret; +diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c +index 3034ee5..7cfbfa6 100644 +--- a/arch/x86/kernel/reboot.c ++++ b/arch/x86/kernel/reboot.c +@@ -35,7 +35,7 @@ void (*pm_power_off)(void); + EXPORT_SYMBOL(pm_power_off); + + static const struct desc_ptr no_idt = {}; +-static int reboot_mode; ++static unsigned short reboot_mode; + enum reboot_type reboot_type = BOOT_ACPI; + int reboot_force; + +@@ -335,13 +335,17 @@ core_initcall(reboot_init); + extern const unsigned char machine_real_restart_asm[]; + extern const u64 machine_real_restart_gdt[3]; + +-void machine_real_restart(unsigned int type) ++__noreturn void machine_real_restart(unsigned int type) + { + void *restart_va; + unsigned long restart_pa; +- void (*restart_lowmem)(unsigned int); ++ void (* __noreturn restart_lowmem)(unsigned int); + u64 *lowmem_gdt; + ++#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)) ++ struct desc_struct *gdt; ++#endif ++ + local_irq_disable(); + + /* Write zero to CMOS register number 0x0f, which the BIOS POST +@@ -367,14 +371,14 @@ void machine_real_restart(unsigned int type) + boot)". This seems like a fairly standard thing that gets set by + REBOOT.COM programs, and the previous reset routine did this + too. */ +- *((unsigned short *)0x472) = reboot_mode; ++ *(unsigned short *)(__va(0x472)) = reboot_mode; + + /* Patch the GDT in the low memory trampoline */ + lowmem_gdt = TRAMPOLINE_SYM(machine_real_restart_gdt); + + restart_va = TRAMPOLINE_SYM(machine_real_restart_asm); + restart_pa = virt_to_phys(restart_va); +- restart_lowmem = (void (*)(unsigned int))restart_pa; ++ restart_lowmem = (void *)restart_pa; + + /* GDT[0]: GDT self-pointer */ + lowmem_gdt[0] = +@@ -385,7 +389,33 @@ void machine_real_restart(unsigned int type) + GDT_ENTRY(0x009b, restart_pa, 0xffff); + + /* Jump to the identity-mapped low memory code */ ++ ++#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)) ++ gdt = get_cpu_gdt_table(smp_processor_id()); ++ pax_open_kernel(); ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ gdt[GDT_ENTRY_KERNEL_DS].type = 3; ++ gdt[GDT_ENTRY_KERNEL_DS].limit = 0xf; ++ asm("mov %0, %%ds; mov %0, %%es; mov %0, %%ss" : : "r" (__KERNEL_DS) : "memory"); ++#endif ++#ifdef CONFIG_PAX_KERNEXEC ++ gdt[GDT_ENTRY_KERNEL_CS].base0 = 0; ++ gdt[GDT_ENTRY_KERNEL_CS].base1 = 0; ++ gdt[GDT_ENTRY_KERNEL_CS].base2 = 0; ++ gdt[GDT_ENTRY_KERNEL_CS].limit0 = 0xffff; ++ gdt[GDT_ENTRY_KERNEL_CS].limit = 0xf; ++ gdt[GDT_ENTRY_KERNEL_CS].g = 1; ++#endif ++ pax_close_kernel(); ++#endif ++ ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) ++ asm volatile("push %0; push %1; lret\n" : : "i" (__KERNEL_CS), "rm" (restart_lowmem), "a" (type)); ++ unreachable(); ++#else + restart_lowmem(type); ++#endif ++ + } + #ifdef CONFIG_APM_MODULE + EXPORT_SYMBOL(machine_real_restart); +@@ -564,7 +594,7 @@ void __attribute__((weak)) mach_reboot_fixups(void) + * try to force a triple fault and then cycle between hitting the keyboard + * controller and doing that + */ +-static void native_machine_emergency_restart(void) ++__noreturn static void native_machine_emergency_restart(void) + { + int i; + int attempt = 0; +@@ -688,13 +718,13 @@ void native_machine_shutdown(void) + #endif + } + +-static void __machine_emergency_restart(int emergency) ++static __noreturn void __machine_emergency_restart(int emergency) + { + reboot_emergency = emergency; + machine_ops.emergency_restart(); + } + +-static void native_machine_restart(char *__unused) ++static __noreturn void native_machine_restart(char *__unused) + { + printk("machine restart\n"); + +@@ -703,7 +733,7 @@ static void native_machine_restart(char *__unused) + __machine_emergency_restart(0); + } + +-static void native_machine_halt(void) ++static __noreturn void native_machine_halt(void) + { + /* stop other cpus and apics */ + machine_shutdown(); +@@ -714,7 +744,7 @@ static void native_machine_halt(void) + stop_this_cpu(NULL); + } + +-static void native_machine_power_off(void) ++__noreturn static void native_machine_power_off(void) + { + if (pm_power_off) { + if (!reboot_force) +@@ -723,6 +753,7 @@ static void native_machine_power_off(void) + } + /* a fallback in case there is no PM info available */ + tboot_shutdown(TB_SHUTDOWN_HALT); ++ unreachable(); + } + + struct machine_ops machine_ops = { +diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S +index 7a6f3b3..bed145d7 100644 +--- a/arch/x86/kernel/relocate_kernel_64.S ++++ b/arch/x86/kernel/relocate_kernel_64.S +@@ -11,6 +11,7 @@ + #include <asm/kexec.h> + #include <asm/processor-flags.h> + #include <asm/pgtable_types.h> ++#include <asm/alternative-asm.h> + + /* + * Must be relocatable PIC code callable as a C function +@@ -160,13 +161,14 @@ identity_mapped: + xorq %rbp, %rbp + xorq %r8, %r8 + xorq %r9, %r9 +- xorq %r10, %r9 ++ xorq %r10, %r10 + xorq %r11, %r11 + xorq %r12, %r12 + xorq %r13, %r13 + xorq %r14, %r14 + xorq %r15, %r15 + ++ pax_force_retaddr 0, 1 + ret + + 1: +diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c +index 1a29015..712f324 100644 +--- a/arch/x86/kernel/setup.c ++++ b/arch/x86/kernel/setup.c +@@ -447,7 +447,7 @@ static void __init parse_setup_data(void) + + switch (data->type) { + case SETUP_E820_EXT: +- parse_e820_ext(data); ++ parse_e820_ext((struct setup_data __force_kernel *)data); + break; + case SETUP_DTB: + add_dtb(pa_data); +@@ -639,7 +639,7 @@ static void __init trim_bios_range(void) + * area (640->1Mb) as ram even though it is not. + * take them out. + */ +- e820_remove_range(BIOS_BEGIN, BIOS_END - BIOS_BEGIN, E820_RAM, 1); ++ e820_remove_range(ISA_START_ADDRESS, ISA_END_ADDRESS - ISA_START_ADDRESS, E820_RAM, 1); + sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map); + } + +@@ -763,14 +763,14 @@ void __init setup_arch(char **cmdline_p) + + if (!boot_params.hdr.root_flags) + root_mountflags &= ~MS_RDONLY; +- init_mm.start_code = (unsigned long) _text; +- init_mm.end_code = (unsigned long) _etext; ++ init_mm.start_code = ktla_ktva((unsigned long) _text); ++ init_mm.end_code = ktla_ktva((unsigned long) _etext); + init_mm.end_data = (unsigned long) _edata; + init_mm.brk = _brk_end; + +- code_resource.start = virt_to_phys(_text); +- code_resource.end = virt_to_phys(_etext)-1; +- data_resource.start = virt_to_phys(_etext); ++ code_resource.start = virt_to_phys(ktla_ktva(_text)); ++ code_resource.end = virt_to_phys(ktla_ktva(_etext))-1; ++ data_resource.start = virt_to_phys(_sdata); + data_resource.end = virt_to_phys(_edata)-1; + bss_resource.start = virt_to_phys(&__bss_start); + bss_resource.end = virt_to_phys(&__bss_stop)-1; +diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c +index 5a98aa2..2f9288d 100644 +--- a/arch/x86/kernel/setup_percpu.c ++++ b/arch/x86/kernel/setup_percpu.c +@@ -21,19 +21,17 @@ + #include <asm/cpu.h> + #include <asm/stackprotector.h> + +-DEFINE_PER_CPU(int, cpu_number); ++#ifdef CONFIG_SMP ++DEFINE_PER_CPU(unsigned int, cpu_number); + EXPORT_PER_CPU_SYMBOL(cpu_number); ++#endif + +-#ifdef CONFIG_X86_64 + #define BOOT_PERCPU_OFFSET ((unsigned long)__per_cpu_load) +-#else +-#define BOOT_PERCPU_OFFSET 0 +-#endif + + DEFINE_PER_CPU(unsigned long, this_cpu_off) = BOOT_PERCPU_OFFSET; + EXPORT_PER_CPU_SYMBOL(this_cpu_off); + +-unsigned long __per_cpu_offset[NR_CPUS] __read_mostly = { ++unsigned long __per_cpu_offset[NR_CPUS] __read_only = { + [0 ... NR_CPUS-1] = BOOT_PERCPU_OFFSET, + }; + EXPORT_SYMBOL(__per_cpu_offset); +@@ -155,10 +153,10 @@ static inline void setup_percpu_segment(int cpu) + { + #ifdef CONFIG_X86_32 + struct desc_struct gdt; ++ unsigned long base = per_cpu_offset(cpu); + +- pack_descriptor(&gdt, per_cpu_offset(cpu), 0xFFFFF, +- 0x2 | DESCTYPE_S, 0x8); +- gdt.s = 1; ++ pack_descriptor(&gdt, base, (VMALLOC_END - base - 1) >> PAGE_SHIFT, ++ 0x83 | DESCTYPE_S, 0xC); + write_gdt_entry(get_cpu_gdt_table(cpu), + GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S); + #endif +@@ -219,6 +217,11 @@ void __init setup_per_cpu_areas(void) + /* alrighty, percpu areas up and running */ + delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start; + for_each_possible_cpu(cpu) { ++#ifdef CONFIG_CC_STACKPROTECTOR ++#ifdef CONFIG_X86_32 ++ unsigned long canary = per_cpu(stack_canary.canary, cpu); ++#endif ++#endif + per_cpu_offset(cpu) = delta + pcpu_unit_offsets[cpu]; + per_cpu(this_cpu_off, cpu) = per_cpu_offset(cpu); + per_cpu(cpu_number, cpu) = cpu; +@@ -259,6 +262,12 @@ void __init setup_per_cpu_areas(void) + */ + set_cpu_numa_node(cpu, early_cpu_to_node(cpu)); + #endif ++#ifdef CONFIG_CC_STACKPROTECTOR ++#ifdef CONFIG_X86_32 ++ if (!cpu) ++ per_cpu(stack_canary.canary, cpu) = canary; ++#endif ++#endif + /* + * Up to this point, the boot CPU has been using .init.data + * area. Reload any changed state for the boot CPU. +diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c +index 115eac4..c0591d5 100644 +--- a/arch/x86/kernel/signal.c ++++ b/arch/x86/kernel/signal.c +@@ -190,7 +190,7 @@ static unsigned long align_sigframe(unsigned long sp) + * Align the stack pointer according to the i386 ABI, + * i.e. so that on function entry ((sp + 4) & 15) == 0. + */ +- sp = ((sp + 4) & -16ul) - 4; ++ sp = ((sp - 12) & -16ul) - 4; + #else /* !CONFIG_X86_32 */ + sp = round_down(sp, 16) - 8; + #endif +@@ -241,11 +241,11 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size, + * Return an always-bogus address instead so we will die with SIGSEGV. + */ + if (onsigstack && !likely(on_sig_stack(sp))) +- return (void __user *)-1L; ++ return (__force void __user *)-1L; + + /* save i387 state */ + if (used_math() && save_i387_xstate(*fpstate) < 0) +- return (void __user *)-1L; ++ return (__force void __user *)-1L; + + return (void __user *)sp; + } +@@ -300,9 +300,9 @@ __setup_frame(int sig, struct k_sigaction *ka, sigset_t *set, + } + + if (current->mm->context.vdso) +- restorer = VDSO32_SYMBOL(current->mm->context.vdso, sigreturn); ++ restorer = (__force void __user *)VDSO32_SYMBOL(current->mm->context.vdso, sigreturn); + else +- restorer = &frame->retcode; ++ restorer = (void __user *)&frame->retcode; + if (ka->sa.sa_flags & SA_RESTORER) + restorer = ka->sa.sa_restorer; + +@@ -316,7 +316,7 @@ __setup_frame(int sig, struct k_sigaction *ka, sigset_t *set, + * reasons and because gdb uses it as a signature to notice + * signal handler stack frames. + */ +- err |= __put_user(*((u64 *)&retcode), (u64 *)frame->retcode); ++ err |= __put_user(*((u64 *)&retcode), (u64 __user *)frame->retcode); + + if (err) + return -EFAULT; +@@ -370,7 +370,10 @@ static int __setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, + err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); + + /* Set up to return from userspace. */ +- restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn); ++ if (current->mm->context.vdso) ++ restorer = (__force void __user *)VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn); ++ else ++ restorer = (void __user *)&frame->retcode; + if (ka->sa.sa_flags & SA_RESTORER) + restorer = ka->sa.sa_restorer; + put_user_ex(restorer, &frame->pretcode); +@@ -382,7 +385,7 @@ static int __setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, + * reasons and because gdb uses it as a signature to notice + * signal handler stack frames. + */ +- put_user_ex(*((u64 *)&rt_retcode), (u64 *)frame->retcode); ++ put_user_ex(*((u64 *)&rt_retcode), (u64 __user *)frame->retcode); + } put_user_catch(err); + + if (err) +@@ -773,7 +776,7 @@ static void do_signal(struct pt_regs *regs) + * X86_32: vm86 regs switched out by assembly code before reaching + * here, so testing against kernel CS suffices. + */ +- if (!user_mode(regs)) ++ if (!user_mode_novm(regs)) + return; + + signr = get_signal_to_deliver(&info, &ka, regs, NULL); +diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c +index 6e1e406..edfb7cb 100644 +--- a/arch/x86/kernel/smpboot.c ++++ b/arch/x86/kernel/smpboot.c +@@ -699,17 +699,20 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu) + set_idle_for_cpu(cpu, c_idle.idle); + do_rest: + per_cpu(current_task, cpu) = c_idle.idle; ++ per_cpu(current_tinfo, cpu) = &c_idle.idle->tinfo; + #ifdef CONFIG_X86_32 + /* Stack for startup_32 can be just as for start_secondary onwards */ + irq_ctx_init(cpu); + #else + clear_tsk_thread_flag(c_idle.idle, TIF_FORK); + initial_gs = per_cpu_offset(cpu); +- per_cpu(kernel_stack, cpu) = +- (unsigned long)task_stack_page(c_idle.idle) - +- KERNEL_STACK_OFFSET + THREAD_SIZE; ++ per_cpu(kernel_stack, cpu) = (unsigned long)task_stack_page(c_idle.idle) - 16 + THREAD_SIZE; + #endif ++ ++ pax_open_kernel(); + early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu); ++ pax_close_kernel(); ++ + initial_code = (unsigned long)start_secondary; + stack_start = c_idle.idle->thread.sp; + +@@ -851,6 +854,12 @@ int __cpuinit native_cpu_up(unsigned int cpu) + + per_cpu(cpu_state, cpu) = CPU_UP_PREPARE; + ++#ifdef CONFIG_PAX_PER_CPU_PGD ++ clone_pgd_range(get_cpu_pgd(cpu) + KERNEL_PGD_BOUNDARY, ++ swapper_pg_dir + KERNEL_PGD_BOUNDARY, ++ KERNEL_PGD_PTRS); ++#endif ++ + err = do_boot_cpu(apicid, cpu); + if (err) { + pr_debug("do_boot_cpu failed %d\n", err); +diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c +index c346d11..d43b163 100644 +--- a/arch/x86/kernel/step.c ++++ b/arch/x86/kernel/step.c +@@ -27,10 +27,10 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re + struct desc_struct *desc; + unsigned long base; + +- seg &= ~7UL; ++ seg >>= 3; + + mutex_lock(&child->mm->context.lock); +- if (unlikely((seg >> 3) >= child->mm->context.size)) ++ if (unlikely(seg >= child->mm->context.size)) + addr = -1L; /* bogus selector, access would fault */ + else { + desc = child->mm->context.ldt + seg; +@@ -42,7 +42,8 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re + addr += base; + } + mutex_unlock(&child->mm->context.lock); +- } ++ } else if (seg == __KERNEL_CS || seg == __KERNEXEC_KERNEL_CS) ++ addr = ktla_ktva(addr); + + return addr; + } +@@ -53,6 +54,9 @@ static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs) + unsigned char opcode[15]; + unsigned long addr = convert_ip_to_linear(child, regs); + ++ if (addr == -EINVAL) ++ return 0; ++ + copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0); + for (i = 0; i < copied; i++) { + switch (opcode[i]) { +diff --git a/arch/x86/kernel/sys_i386_32.c b/arch/x86/kernel/sys_i386_32.c +index 0b0cb5f..db6b9ed 100644 +--- a/arch/x86/kernel/sys_i386_32.c ++++ b/arch/x86/kernel/sys_i386_32.c +@@ -24,17 +24,224 @@ + + #include <asm/syscalls.h> + +-/* +- * Do a system call from kernel instead of calling sys_execve so we +- * end up with proper pt_regs. +- */ +-int kernel_execve(const char *filename, +- const char *const argv[], +- const char *const envp[]) ++int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags) + { +- long __res; +- asm volatile ("int $0x80" +- : "=a" (__res) +- : "0" (__NR_execve), "b" (filename), "c" (argv), "d" (envp) : "memory"); +- return __res; ++ unsigned long pax_task_size = TASK_SIZE; ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) ++ pax_task_size = SEGMEXEC_TASK_SIZE; ++#endif ++ ++ if (len > pax_task_size || addr > pax_task_size - len) ++ return -EINVAL; ++ ++ return 0; ++} ++ ++unsigned long ++arch_get_unmapped_area(struct file *filp, unsigned long addr, ++ unsigned long len, unsigned long pgoff, unsigned long flags) ++{ ++ struct mm_struct *mm = current->mm; ++ struct vm_area_struct *vma; ++ unsigned long start_addr, pax_task_size = TASK_SIZE; ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (mm->pax_flags & MF_PAX_SEGMEXEC) ++ pax_task_size = SEGMEXEC_TASK_SIZE; ++#endif ++ ++ pax_task_size -= PAGE_SIZE; ++ ++ if (len > pax_task_size) ++ return -ENOMEM; ++ ++ if (flags & MAP_FIXED) ++ return addr; ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) ++#endif ++ ++ if (addr) { ++ addr = PAGE_ALIGN(addr); ++ if (pax_task_size - len >= addr) { ++ vma = find_vma(mm, addr); ++ if (check_heap_stack_gap(vma, addr, len)) ++ return addr; ++ } ++ } ++ if (len > mm->cached_hole_size) { ++ start_addr = addr = mm->free_area_cache; ++ } else { ++ start_addr = addr = mm->mmap_base; ++ mm->cached_hole_size = 0; ++ } ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++ if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE) && start_addr >= mm->mmap_base) { ++ start_addr = 0x00110000UL; ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ start_addr += mm->delta_mmap & 0x03FFF000UL; ++#endif ++ ++ if (mm->start_brk <= start_addr && start_addr < mm->mmap_base) ++ start_addr = addr = mm->mmap_base; ++ else ++ addr = start_addr; ++ } ++#endif ++ ++full_search: ++ for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { ++ /* At this point: (!vma || addr < vma->vm_end). */ ++ if (pax_task_size - len < addr) { ++ /* ++ * Start a new search - just in case we missed ++ * some holes. ++ */ ++ if (start_addr != mm->mmap_base) { ++ start_addr = addr = mm->mmap_base; ++ mm->cached_hole_size = 0; ++ goto full_search; ++ } ++ return -ENOMEM; ++ } ++ if (check_heap_stack_gap(vma, addr, len)) ++ break; ++ if (addr + mm->cached_hole_size < vma->vm_start) ++ mm->cached_hole_size = vma->vm_start - addr; ++ addr = vma->vm_end; ++ if (mm->start_brk <= addr && addr < mm->mmap_base) { ++ start_addr = addr = mm->mmap_base; ++ mm->cached_hole_size = 0; ++ goto full_search; ++ } ++ } ++ ++ /* ++ * Remember the place where we stopped the search: ++ */ ++ mm->free_area_cache = addr + len; ++ return addr; ++} ++ ++unsigned long ++arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, ++ const unsigned long len, const unsigned long pgoff, ++ const unsigned long flags) ++{ ++ struct vm_area_struct *vma; ++ struct mm_struct *mm = current->mm; ++ unsigned long base = mm->mmap_base, addr = addr0, pax_task_size = TASK_SIZE; ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (mm->pax_flags & MF_PAX_SEGMEXEC) ++ pax_task_size = SEGMEXEC_TASK_SIZE; ++#endif ++ ++ pax_task_size -= PAGE_SIZE; ++ ++ /* requested length too big for entire address space */ ++ if (len > pax_task_size) ++ return -ENOMEM; ++ ++ if (flags & MAP_FIXED) ++ return addr; ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++ if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE)) ++ goto bottomup; ++#endif ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) ++#endif ++ ++ /* requesting a specific address */ ++ if (addr) { ++ addr = PAGE_ALIGN(addr); ++ if (pax_task_size - len >= addr) { ++ vma = find_vma(mm, addr); ++ if (check_heap_stack_gap(vma, addr, len)) ++ return addr; ++ } ++ } ++ ++ /* check if free_area_cache is useful for us */ ++ if (len <= mm->cached_hole_size) { ++ mm->cached_hole_size = 0; ++ mm->free_area_cache = mm->mmap_base; ++ } ++ ++ /* either no address requested or can't fit in requested address hole */ ++ addr = mm->free_area_cache; ++ ++ /* make sure it can fit in the remaining address space */ ++ if (addr > len) { ++ vma = find_vma(mm, addr-len); ++ if (check_heap_stack_gap(vma, addr - len, len)) ++ /* remember the address as a hint for next time */ ++ return (mm->free_area_cache = addr-len); ++ } ++ ++ if (mm->mmap_base < len) ++ goto bottomup; ++ ++ addr = mm->mmap_base-len; ++ ++ do { ++ /* ++ * Lookup failure means no vma is above this address, ++ * else if new region fits below vma->vm_start, ++ * return with success: ++ */ ++ vma = find_vma(mm, addr); ++ if (check_heap_stack_gap(vma, addr, len)) ++ /* remember the address as a hint for next time */ ++ return (mm->free_area_cache = addr); ++ ++ /* remember the largest hole we saw so far */ ++ if (addr + mm->cached_hole_size < vma->vm_start) ++ mm->cached_hole_size = vma->vm_start - addr; ++ ++ /* try just below the current vma->vm_start */ ++ addr = skip_heap_stack_gap(vma, len); ++ } while (!IS_ERR_VALUE(addr)); ++ ++bottomup: ++ /* ++ * A failed mmap() very likely causes application failure, ++ * so fall back to the bottom-up function here. This scenario ++ * can happen with large stack limits and large mmap() ++ * allocations. ++ */ ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (mm->pax_flags & MF_PAX_SEGMEXEC) ++ mm->mmap_base = SEGMEXEC_TASK_UNMAPPED_BASE; ++ else ++#endif ++ ++ mm->mmap_base = TASK_UNMAPPED_BASE; ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ mm->mmap_base += mm->delta_mmap; ++#endif ++ ++ mm->free_area_cache = mm->mmap_base; ++ mm->cached_hole_size = ~0UL; ++ addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags); ++ /* ++ * Restore the topdown base: ++ */ ++ mm->mmap_base = base; ++ mm->free_area_cache = base; ++ mm->cached_hole_size = ~0UL; ++ ++ return addr; + } +diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c +index b4d3c39..82bb73b 100644 +--- a/arch/x86/kernel/sys_x86_64.c ++++ b/arch/x86/kernel/sys_x86_64.c +@@ -95,8 +95,8 @@ out: + return error; + } + +-static void find_start_end(unsigned long flags, unsigned long *begin, +- unsigned long *end) ++static void find_start_end(struct mm_struct *mm, unsigned long flags, ++ unsigned long *begin, unsigned long *end) + { + if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT)) { + unsigned long new_begin; +@@ -115,7 +115,7 @@ static void find_start_end(unsigned long flags, unsigned long *begin, + *begin = new_begin; + } + } else { +- *begin = TASK_UNMAPPED_BASE; ++ *begin = mm->mmap_base; + *end = TASK_SIZE; + } + } +@@ -132,16 +132,19 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, + if (flags & MAP_FIXED) + return addr; + +- find_start_end(flags, &begin, &end); ++ find_start_end(mm, flags, &begin, &end); + + if (len > end) + return -ENOMEM; + ++#ifdef CONFIG_PAX_RANDMMAP ++ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) ++#endif ++ + if (addr) { + addr = PAGE_ALIGN(addr); + vma = find_vma(mm, addr); +- if (end - len >= addr && +- (!vma || addr + len <= vma->vm_start)) ++ if (end - len >= addr && check_heap_stack_gap(vma, addr, len)) + return addr; + } + if (((flags & MAP_32BIT) || test_thread_flag(TIF_ADDR32)) +@@ -172,7 +175,7 @@ full_search: + } + return -ENOMEM; + } +- if (!vma || addr + len <= vma->vm_start) { ++ if (check_heap_stack_gap(vma, addr, len)) { + /* + * Remember the place where we stopped the search: + */ +@@ -195,7 +198,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, + { + struct vm_area_struct *vma; + struct mm_struct *mm = current->mm; +- unsigned long addr = addr0, start_addr; ++ unsigned long base = mm->mmap_base, addr = addr0, start_addr; + + /* requested length too big for entire address space */ + if (len > TASK_SIZE) +@@ -208,13 +211,18 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, + if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT)) + goto bottomup; + ++#ifdef CONFIG_PAX_RANDMMAP ++ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) ++#endif ++ + /* requesting a specific address */ + if (addr) { + addr = PAGE_ALIGN(addr); +- vma = find_vma(mm, addr); +- if (TASK_SIZE - len >= addr && +- (!vma || addr + len <= vma->vm_start)) +- return addr; ++ if (TASK_SIZE - len >= addr) { ++ vma = find_vma(mm, addr); ++ if (check_heap_stack_gap(vma, addr, len)) ++ return addr; ++ } + } + + /* check if free_area_cache is useful for us */ +@@ -240,7 +248,7 @@ try_again: + * return with success: + */ + vma = find_vma(mm, addr); +- if (!vma || addr+len <= vma->vm_start) ++ if (check_heap_stack_gap(vma, addr, len)) + /* remember the address as a hint for next time */ + return mm->free_area_cache = addr; + +@@ -249,8 +257,8 @@ try_again: + mm->cached_hole_size = vma->vm_start - addr; + + /* try just below the current vma->vm_start */ +- addr = vma->vm_start-len; +- } while (len < vma->vm_start); ++ addr = skip_heap_stack_gap(vma, len); ++ } while (!IS_ERR_VALUE(addr)); + + fail: + /* +@@ -270,13 +278,21 @@ bottomup: + * can happen with large stack limits and large mmap() + * allocations. + */ ++ mm->mmap_base = TASK_UNMAPPED_BASE; ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ mm->mmap_base += mm->delta_mmap; ++#endif ++ ++ mm->free_area_cache = mm->mmap_base; + mm->cached_hole_size = ~0UL; +- mm->free_area_cache = TASK_UNMAPPED_BASE; + addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags); + /* + * Restore the topdown base: + */ +- mm->free_area_cache = mm->mmap_base; ++ mm->mmap_base = base; ++ mm->free_area_cache = base; + mm->cached_hole_size = ~0UL; + + return addr; +diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c +index 6410744..79758f0 100644 +--- a/arch/x86/kernel/tboot.c ++++ b/arch/x86/kernel/tboot.c +@@ -219,7 +219,7 @@ static int tboot_setup_sleep(void) + + void tboot_shutdown(u32 shutdown_type) + { +- void (*shutdown)(void); ++ void (* __noreturn shutdown)(void); + + if (!tboot_enabled()) + return; +@@ -241,7 +241,7 @@ void tboot_shutdown(u32 shutdown_type) + + switch_to_tboot_pt(); + +- shutdown = (void(*)(void))(unsigned long)tboot->shutdown_entry; ++ shutdown = (void *)tboot->shutdown_entry; + shutdown(); + + /* should not reach here */ +@@ -299,7 +299,7 @@ static int tboot_sleep(u8 sleep_state, u32 pm1a_control, u32 pm1b_control) + return 0; + } + +-static atomic_t ap_wfs_count; ++static atomic_unchecked_t ap_wfs_count; + + static int tboot_wait_for_aps(int num_aps) + { +@@ -323,9 +323,9 @@ static int __cpuinit tboot_cpu_callback(struct notifier_block *nfb, + { + switch (action) { + case CPU_DYING: +- atomic_inc(&ap_wfs_count); ++ atomic_inc_unchecked(&ap_wfs_count); + if (num_online_cpus() == 1) +- if (tboot_wait_for_aps(atomic_read(&ap_wfs_count))) ++ if (tboot_wait_for_aps(atomic_read_unchecked(&ap_wfs_count))) + return NOTIFY_BAD; + break; + } +@@ -344,7 +344,7 @@ static __init int tboot_late_init(void) + + tboot_create_trampoline(); + +- atomic_set(&ap_wfs_count, 0); ++ atomic_set_unchecked(&ap_wfs_count, 0); + register_hotcpu_notifier(&tboot_cpu_notifier); + + acpi_os_set_prepare_sleep(&tboot_sleep); +diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c +index c6eba2b..3303326 100644 +--- a/arch/x86/kernel/time.c ++++ b/arch/x86/kernel/time.c +@@ -31,9 +31,9 @@ unsigned long profile_pc(struct pt_regs *regs) + { + unsigned long pc = instruction_pointer(regs); + +- if (!user_mode_vm(regs) && in_lock_functions(pc)) { ++ if (!user_mode(regs) && in_lock_functions(pc)) { + #ifdef CONFIG_FRAME_POINTER +- return *(unsigned long *)(regs->bp + sizeof(long)); ++ return ktla_ktva(*(unsigned long *)(regs->bp + sizeof(long))); + #else + unsigned long *sp = + (unsigned long *)kernel_stack_pointer(regs); +@@ -42,11 +42,17 @@ unsigned long profile_pc(struct pt_regs *regs) + * or above a saved flags. Eflags has bits 22-31 zero, + * kernel addresses don't. + */ ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ return ktla_ktva(sp[0]); ++#else + if (sp[0] >> 22) + return sp[0]; + if (sp[1] >> 22) + return sp[1]; + #endif ++ ++#endif + } + return pc; + } +diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c +index 9d9d2f9..ed344e4 100644 +--- a/arch/x86/kernel/tls.c ++++ b/arch/x86/kernel/tls.c +@@ -84,6 +84,11 @@ int do_set_thread_area(struct task_struct *p, int idx, + if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX) + return -EINVAL; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if ((p->mm->pax_flags & MF_PAX_SEGMEXEC) && (info.contents & MODIFY_LDT_CONTENTS_CODE)) ++ return -EINVAL; ++#endif ++ + set_tls_desc(p, idx, &info, 1); + + return 0; +diff --git a/arch/x86/kernel/trampoline_32.S b/arch/x86/kernel/trampoline_32.S +index 451c0a7..e57f551 100644 +--- a/arch/x86/kernel/trampoline_32.S ++++ b/arch/x86/kernel/trampoline_32.S +@@ -32,6 +32,12 @@ + #include <asm/segment.h> + #include <asm/page_types.h> + ++#ifdef CONFIG_PAX_KERNEXEC ++#define ta(X) (X) ++#else ++#define ta(X) ((X) - __PAGE_OFFSET) ++#endif ++ + #ifdef CONFIG_SMP + + .section ".x86_trampoline","a" +@@ -62,7 +68,7 @@ r_base = . + inc %ax # protected mode (PE) bit + lmsw %ax # into protected mode + # flush prefetch and jump to startup_32_smp in arch/i386/kernel/head.S +- ljmpl $__BOOT_CS, $(startup_32_smp-__PAGE_OFFSET) ++ ljmpl $__BOOT_CS, $ta(startup_32_smp) + + # These need to be in the same 64K segment as the above; + # hence we don't use the boot_gdt_descr defined in head.S +diff --git a/arch/x86/kernel/trampoline_64.S b/arch/x86/kernel/trampoline_64.S +index 09ff517..df19fbff 100644 +--- a/arch/x86/kernel/trampoline_64.S ++++ b/arch/x86/kernel/trampoline_64.S +@@ -90,7 +90,7 @@ startup_32: + movl $__KERNEL_DS, %eax # Initialize the %ds segment register + movl %eax, %ds + +- movl $X86_CR4_PAE, %eax ++ movl $(X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE), %eax + movl %eax, %cr4 # Enable PAE mode + + # Setup trampoline 4 level pagetables +@@ -138,7 +138,7 @@ tidt: + # so the kernel can live anywhere + .balign 4 + tgdt: +- .short tgdt_end - tgdt # gdt limit ++ .short tgdt_end - tgdt - 1 # gdt limit + .long tgdt - r_base + .short 0 + .quad 0x00cf9b000000ffff # __KERNEL32_CS +diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c +index ff9281f1..30cb4ac 100644 +--- a/arch/x86/kernel/traps.c ++++ b/arch/x86/kernel/traps.c +@@ -70,12 +70,6 @@ asmlinkage int system_call(void); + + /* Do we ignore FPU interrupts ? */ + char ignore_fpu_irq; +- +-/* +- * The IDT has to be page-aligned to simplify the Pentium +- * F0 0F bug workaround. +- */ +-gate_desc idt_table[NR_VECTORS] __page_aligned_data = { { { { 0, 0 } } }, }; + #endif + + DECLARE_BITMAP(used_vectors, NR_VECTORS); +@@ -108,13 +102,13 @@ static inline void preempt_conditional_cli(struct pt_regs *regs) + } + + static void __kprobes +-do_trap(int trapnr, int signr, char *str, struct pt_regs *regs, ++do_trap(int trapnr, int signr, const char *str, struct pt_regs *regs, + long error_code, siginfo_t *info) + { + struct task_struct *tsk = current; + + #ifdef CONFIG_X86_32 +- if (regs->flags & X86_VM_MASK) { ++ if (v8086_mode(regs)) { + /* + * traps 0, 1, 3, 4, and 5 should be forwarded to vm86. + * On nmi (interrupt 2), do_trap should not be called. +@@ -125,7 +119,7 @@ do_trap(int trapnr, int signr, char *str, struct pt_regs *regs, + } + #endif + +- if (!user_mode(regs)) ++ if (!user_mode_novm(regs)) + goto kernel_trap; + + #ifdef CONFIG_X86_32 +@@ -148,7 +142,7 @@ trap_signal: + printk_ratelimit()) { + printk(KERN_INFO + "%s[%d] trap %s ip:%lx sp:%lx error:%lx", +- tsk->comm, tsk->pid, str, ++ tsk->comm, task_pid_nr(tsk), str, + regs->ip, regs->sp, error_code); + print_vma_addr(" in ", regs->ip); + printk("\n"); +@@ -165,8 +159,20 @@ kernel_trap: + if (!fixup_exception(regs)) { + tsk->thread.error_code = error_code; + tsk->thread.trap_nr = trapnr; ++ ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) ++ if (trapnr == 12 && ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS)) ++ str = "PAX: suspicious stack segment fault"; ++#endif ++ + die(str, regs, error_code); + } ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ if (trapnr == 4) ++ pax_report_refcount_overflow(regs); ++#endif ++ + return; + + #ifdef CONFIG_X86_32 +@@ -259,14 +265,30 @@ do_general_protection(struct pt_regs *regs, long error_code) + conditional_sti(regs); + + #ifdef CONFIG_X86_32 +- if (regs->flags & X86_VM_MASK) ++ if (v8086_mode(regs)) + goto gp_in_vm86; + #endif + + tsk = current; +- if (!user_mode(regs)) ++ if (!user_mode_novm(regs)) + goto gp_in_kernel; + ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) ++ if (!(__supported_pte_mask & _PAGE_NX) && tsk->mm && (tsk->mm->pax_flags & MF_PAX_PAGEEXEC)) { ++ struct mm_struct *mm = tsk->mm; ++ unsigned long limit; ++ ++ down_write(&mm->mmap_sem); ++ limit = mm->context.user_cs_limit; ++ if (limit < TASK_SIZE) { ++ track_exec_limit(mm, limit, TASK_SIZE, VM_EXEC); ++ up_write(&mm->mmap_sem); ++ return; ++ } ++ up_write(&mm->mmap_sem); ++ } ++#endif ++ + tsk->thread.error_code = error_code; + tsk->thread.trap_nr = X86_TRAP_GP; + +@@ -299,6 +321,13 @@ gp_in_kernel: + if (notify_die(DIE_GPF, "general protection fault", regs, error_code, + X86_TRAP_GP, SIGSEGV) == NOTIFY_STOP) + return; ++ ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) ++ if ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS) ++ die("PAX: suspicious general protection fault", regs, error_code); ++ else ++#endif ++ + die("general protection fault", regs, error_code); + } + +@@ -425,7 +454,7 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code) + /* It's safe to allow irq's after DR6 has been saved */ + preempt_conditional_sti(regs); + +- if (regs->flags & X86_VM_MASK) { ++ if (v8086_mode(regs)) { + handle_vm86_trap((struct kernel_vm86_regs *) regs, error_code, + X86_TRAP_DB); + preempt_conditional_cli(regs); +@@ -440,7 +469,7 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code) + * We already checked v86 mode above, so we can check for kernel mode + * by just checking the CPL of CS. + */ +- if ((dr6 & DR_STEP) && !user_mode(regs)) { ++ if ((dr6 & DR_STEP) && !user_mode_novm(regs)) { + tsk->thread.debugreg6 &= ~DR_STEP; + set_tsk_thread_flag(tsk, TIF_SINGLESTEP); + regs->flags &= ~X86_EFLAGS_TF; +@@ -471,7 +500,7 @@ void math_error(struct pt_regs *regs, int error_code, int trapnr) + return; + conditional_sti(regs); + +- if (!user_mode_vm(regs)) ++ if (!user_mode(regs)) + { + if (!fixup_exception(regs)) { + task->thread.error_code = error_code; +diff --git a/arch/x86/kernel/verify_cpu.S b/arch/x86/kernel/verify_cpu.S +index b9242ba..50c5edd 100644 +--- a/arch/x86/kernel/verify_cpu.S ++++ b/arch/x86/kernel/verify_cpu.S +@@ -20,6 +20,7 @@ + * arch/x86/boot/compressed/head_64.S: Boot cpu verification + * arch/x86/kernel/trampoline_64.S: secondary processor verification + * arch/x86/kernel/head_32.S: processor startup ++ * arch/x86/kernel/acpi/realmode/wakeup.S: 32bit processor resume + * + * verify_cpu, returns the status of longmode and SSE in register %eax. + * 0: Success 1: Failure +diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c +index 255f58a..5e91150 100644 +--- a/arch/x86/kernel/vm86_32.c ++++ b/arch/x86/kernel/vm86_32.c +@@ -41,6 +41,7 @@ + #include <linux/ptrace.h> + #include <linux/audit.h> + #include <linux/stddef.h> ++#include <linux/grsecurity.h> + + #include <asm/uaccess.h> + #include <asm/io.h> +@@ -148,7 +149,7 @@ struct pt_regs *save_v86_state(struct kernel_vm86_regs *regs) + do_exit(SIGSEGV); + } + +- tss = &per_cpu(init_tss, get_cpu()); ++ tss = init_tss + get_cpu(); + current->thread.sp0 = current->thread.saved_sp0; + current->thread.sysenter_cs = __KERNEL_CS; + load_sp0(tss, &current->thread); +@@ -210,6 +211,13 @@ int sys_vm86old(struct vm86_struct __user *v86, struct pt_regs *regs) + struct task_struct *tsk; + int tmp, ret = -EPERM; + ++#ifdef CONFIG_GRKERNSEC_VM86 ++ if (!capable(CAP_SYS_RAWIO)) { ++ gr_handle_vm86(); ++ goto out; ++ } ++#endif ++ + tsk = current; + if (tsk->thread.saved_sp0) + goto out; +@@ -240,6 +248,14 @@ int sys_vm86(unsigned long cmd, unsigned long arg, struct pt_regs *regs) + int tmp, ret; + struct vm86plus_struct __user *v86; + ++#ifdef CONFIG_GRKERNSEC_VM86 ++ if (!capable(CAP_SYS_RAWIO)) { ++ gr_handle_vm86(); ++ ret = -EPERM; ++ goto out; ++ } ++#endif ++ + tsk = current; + switch (cmd) { + case VM86_REQUEST_IRQ: +@@ -326,7 +342,7 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk + tsk->thread.saved_fs = info->regs32->fs; + tsk->thread.saved_gs = get_user_gs(info->regs32); + +- tss = &per_cpu(init_tss, get_cpu()); ++ tss = init_tss + get_cpu(); + tsk->thread.sp0 = (unsigned long) &info->VM86_TSS_ESP0; + if (cpu_has_sep) + tsk->thread.sysenter_cs = 0; +@@ -533,7 +549,7 @@ static void do_int(struct kernel_vm86_regs *regs, int i, + goto cannot_handle; + if (i == 0x21 && is_revectored(AH(regs), &KVM86->int21_revectored)) + goto cannot_handle; +- intr_ptr = (unsigned long __user *) (i << 2); ++ intr_ptr = (__force unsigned long __user *) (i << 2); + if (get_user(segoffs, intr_ptr)) + goto cannot_handle; + if ((segoffs >> 16) == BIOSSEG) +diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S +index 0f703f1..9e15f64 100644 +--- a/arch/x86/kernel/vmlinux.lds.S ++++ b/arch/x86/kernel/vmlinux.lds.S +@@ -26,6 +26,13 @@ + #include <asm/page_types.h> + #include <asm/cache.h> + #include <asm/boot.h> ++#include <asm/segment.h> ++ ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) ++#define __KERNEL_TEXT_OFFSET (LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR) ++#else ++#define __KERNEL_TEXT_OFFSET 0 ++#endif + + #undef i386 /* in case the preprocessor is a 32bit one */ + +@@ -69,30 +76,43 @@ jiffies_64 = jiffies; + + PHDRS { + text PT_LOAD FLAGS(5); /* R_E */ ++#ifdef CONFIG_X86_32 ++ module PT_LOAD FLAGS(5); /* R_E */ ++#endif ++#ifdef CONFIG_XEN ++ rodata PT_LOAD FLAGS(5); /* R_E */ ++#else ++ rodata PT_LOAD FLAGS(4); /* R__ */ ++#endif + data PT_LOAD FLAGS(6); /* RW_ */ +-#ifdef CONFIG_X86_64 ++ init.begin PT_LOAD FLAGS(6); /* RW_ */ + #ifdef CONFIG_SMP + percpu PT_LOAD FLAGS(6); /* RW_ */ + #endif ++ text.init PT_LOAD FLAGS(5); /* R_E */ ++ text.exit PT_LOAD FLAGS(5); /* R_E */ + init PT_LOAD FLAGS(7); /* RWE */ +-#endif + note PT_NOTE FLAGS(0); /* ___ */ + } + + SECTIONS + { + #ifdef CONFIG_X86_32 +- . = LOAD_OFFSET + LOAD_PHYSICAL_ADDR; +- phys_startup_32 = startup_32 - LOAD_OFFSET; ++ . = LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR; + #else +- . = __START_KERNEL; +- phys_startup_64 = startup_64 - LOAD_OFFSET; ++ . = __START_KERNEL; + #endif + + /* Text and read-only data */ +- .text : AT(ADDR(.text) - LOAD_OFFSET) { +- _text = .; ++ .text (. - __KERNEL_TEXT_OFFSET): AT(ADDR(.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) { + /* bootstrapping code */ ++#ifdef CONFIG_X86_32 ++ phys_startup_32 = startup_32 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET; ++#else ++ phys_startup_64 = startup_64 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET; ++#endif ++ __LOAD_PHYSICAL_ADDR = . - LOAD_OFFSET + __KERNEL_TEXT_OFFSET; ++ _text = .; + HEAD_TEXT + #ifdef CONFIG_X86_32 + . = ALIGN(PAGE_SIZE); +@@ -108,13 +128,47 @@ SECTIONS + IRQENTRY_TEXT + *(.fixup) + *(.gnu.warning) +- /* End of text section */ +- _etext = .; + } :text = 0x9090 + +- NOTES :text :note ++ . += __KERNEL_TEXT_OFFSET; + +- EXCEPTION_TABLE(16) :text = 0x9090 ++#ifdef CONFIG_X86_32 ++ . = ALIGN(PAGE_SIZE); ++ .module.text : AT(ADDR(.module.text) - LOAD_OFFSET) { ++ ++#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_MODULES) ++ MODULES_EXEC_VADDR = .; ++ BYTE(0) ++ . += (CONFIG_PAX_KERNEXEC_MODULE_TEXT * 1024 * 1024); ++ . = ALIGN(HPAGE_SIZE); ++ MODULES_EXEC_END = . - 1; ++#endif ++ ++ } :module ++#endif ++ ++ .text.end : AT(ADDR(.text.end) - LOAD_OFFSET) { ++ /* End of text section */ ++ _etext = . - __KERNEL_TEXT_OFFSET; ++ } ++ ++#ifdef CONFIG_X86_32 ++ . = ALIGN(PAGE_SIZE); ++ .rodata.page_aligned : AT(ADDR(.rodata.page_aligned) - LOAD_OFFSET) { ++ *(.idt) ++ . = ALIGN(PAGE_SIZE); ++ *(.empty_zero_page) ++ *(.initial_pg_fixmap) ++ *(.initial_pg_pmd) ++ *(.initial_page_table) ++ *(.swapper_pg_dir) ++ } :rodata ++#endif ++ ++ . = ALIGN(PAGE_SIZE); ++ NOTES :rodata :note ++ ++ EXCEPTION_TABLE(16) :rodata + + #if defined(CONFIG_DEBUG_RODATA) + /* .text should occupy whole number of pages */ +@@ -126,16 +180,20 @@ SECTIONS + + /* Data */ + .data : AT(ADDR(.data) - LOAD_OFFSET) { ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ . = ALIGN(HPAGE_SIZE); ++#else ++ . = ALIGN(PAGE_SIZE); ++#endif ++ + /* Start of data section */ + _sdata = .; + + /* init_task */ + INIT_TASK_DATA(THREAD_SIZE) + +-#ifdef CONFIG_X86_32 +- /* 32 bit has nosave before _edata */ + NOSAVE_DATA +-#endif + + PAGE_ALIGNED_DATA(PAGE_SIZE) + +@@ -176,12 +234,19 @@ SECTIONS + #endif /* CONFIG_X86_64 */ + + /* Init code and data - will be freed after init */ +- . = ALIGN(PAGE_SIZE); + .init.begin : AT(ADDR(.init.begin) - LOAD_OFFSET) { ++ BYTE(0) ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ . = ALIGN(HPAGE_SIZE); ++#else ++ . = ALIGN(PAGE_SIZE); ++#endif ++ + __init_begin = .; /* paired with __init_end */ +- } ++ } :init.begin + +-#if defined(CONFIG_X86_64) && defined(CONFIG_SMP) ++#ifdef CONFIG_SMP + /* + * percpu offsets are zero-based on SMP. PERCPU_VADDR() changes the + * output PHDR, so the next output section - .init.text - should +@@ -190,12 +255,27 @@ SECTIONS + PERCPU_VADDR(INTERNODE_CACHE_BYTES, 0, :percpu) + #endif + +- INIT_TEXT_SECTION(PAGE_SIZE) +-#ifdef CONFIG_X86_64 +- :init +-#endif ++ . = ALIGN(PAGE_SIZE); ++ init_begin = .; ++ .init.text (. - __KERNEL_TEXT_OFFSET): AT(init_begin - LOAD_OFFSET) { ++ VMLINUX_SYMBOL(_sinittext) = .; ++ INIT_TEXT ++ VMLINUX_SYMBOL(_einittext) = .; ++ . = ALIGN(PAGE_SIZE); ++ } :text.init + +- INIT_DATA_SECTION(16) ++ /* ++ * .exit.text is discard at runtime, not link time, to deal with ++ * references from .altinstructions and .eh_frame ++ */ ++ .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) { ++ EXIT_TEXT ++ . = ALIGN(16); ++ } :text.exit ++ . = init_begin + SIZEOF(.init.text) + SIZEOF(.exit.text); ++ ++ . = ALIGN(PAGE_SIZE); ++ INIT_DATA_SECTION(16) :init + + /* + * Code and data for a variety of lowlevel trampolines, to be +@@ -269,19 +349,12 @@ SECTIONS + } + + . = ALIGN(8); +- /* +- * .exit.text is discard at runtime, not link time, to deal with +- * references from .altinstructions and .eh_frame +- */ +- .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { +- EXIT_TEXT +- } + + .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { + EXIT_DATA + } + +-#if !defined(CONFIG_X86_64) || !defined(CONFIG_SMP) ++#ifndef CONFIG_SMP + PERCPU_SECTION(INTERNODE_CACHE_BYTES) + #endif + +@@ -300,16 +373,10 @@ SECTIONS + .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) { + __smp_locks = .; + *(.smp_locks) +- . = ALIGN(PAGE_SIZE); + __smp_locks_end = .; ++ . = ALIGN(PAGE_SIZE); + } + +-#ifdef CONFIG_X86_64 +- .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { +- NOSAVE_DATA +- } +-#endif +- + /* BSS */ + . = ALIGN(PAGE_SIZE); + .bss : AT(ADDR(.bss) - LOAD_OFFSET) { +@@ -325,6 +392,7 @@ SECTIONS + __brk_base = .; + . += 64 * 1024; /* 64k alignment slop space */ + *(.brk_reservation) /* areas brk users have reserved */ ++ . = ALIGN(HPAGE_SIZE); + __brk_limit = .; + } + +@@ -351,13 +419,12 @@ SECTIONS + * for the boot processor. + */ + #define INIT_PER_CPU(x) init_per_cpu__##x = x + __per_cpu_load +-INIT_PER_CPU(gdt_page); + INIT_PER_CPU(irq_stack_union); + + /* + * Build-time check on the image size: + */ +-. = ASSERT((_end - _text <= KERNEL_IMAGE_SIZE), ++. = ASSERT((_end - _text - __KERNEL_TEXT_OFFSET <= KERNEL_IMAGE_SIZE), + "kernel image bigger than KERNEL_IMAGE_SIZE"); + + #ifdef CONFIG_SMP +diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c +index 7515cf0..331a1a0 100644 +--- a/arch/x86/kernel/vsyscall_64.c ++++ b/arch/x86/kernel/vsyscall_64.c +@@ -54,15 +54,13 @@ + DEFINE_VVAR(int, vgetcpu_mode); + DEFINE_VVAR(struct vsyscall_gtod_data, vsyscall_gtod_data); + +-static enum { EMULATE, NATIVE, NONE } vsyscall_mode = EMULATE; ++static enum { EMULATE, NONE } vsyscall_mode = EMULATE; + + static int __init vsyscall_setup(char *str) + { + if (str) { + if (!strcmp("emulate", str)) + vsyscall_mode = EMULATE; +- else if (!strcmp("native", str)) +- vsyscall_mode = NATIVE; + else if (!strcmp("none", str)) + vsyscall_mode = NONE; + else +@@ -206,7 +204,7 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address) + + tsk = current; + if (seccomp_mode(&tsk->seccomp)) +- do_exit(SIGKILL); ++ do_group_exit(SIGKILL); + + /* + * With a real vsyscall, page faults cause SIGSEGV. We want to +@@ -278,8 +276,7 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address) + return true; + + sigsegv: +- force_sig(SIGSEGV, current); +- return true; ++ do_group_exit(SIGKILL); + } + + /* +@@ -332,10 +329,7 @@ void __init map_vsyscall(void) + extern char __vvar_page; + unsigned long physaddr_vvar_page = __pa_symbol(&__vvar_page); + +- __set_fixmap(VSYSCALL_FIRST_PAGE, physaddr_vsyscall, +- vsyscall_mode == NATIVE +- ? PAGE_KERNEL_VSYSCALL +- : PAGE_KERNEL_VVAR); ++ __set_fixmap(VSYSCALL_FIRST_PAGE, physaddr_vsyscall, PAGE_KERNEL_VVAR); + BUILD_BUG_ON((unsigned long)__fix_to_virt(VSYSCALL_FIRST_PAGE) != + (unsigned long)VSYSCALL_START); + +diff --git a/arch/x86/kernel/x8664_ksyms_64.c b/arch/x86/kernel/x8664_ksyms_64.c +index 9796c2f..f686fbf 100644 +--- a/arch/x86/kernel/x8664_ksyms_64.c ++++ b/arch/x86/kernel/x8664_ksyms_64.c +@@ -29,8 +29,6 @@ EXPORT_SYMBOL(__put_user_8); + EXPORT_SYMBOL(copy_user_generic_string); + EXPORT_SYMBOL(copy_user_generic_unrolled); + EXPORT_SYMBOL(__copy_user_nocache); +-EXPORT_SYMBOL(_copy_from_user); +-EXPORT_SYMBOL(_copy_to_user); + + EXPORT_SYMBOL(copy_page); + EXPORT_SYMBOL(clear_page); +diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c +index e62728e..5fc3a07 100644 +--- a/arch/x86/kernel/xsave.c ++++ b/arch/x86/kernel/xsave.c +@@ -131,7 +131,7 @@ int check_for_xstate(struct i387_fxsave_struct __user *buf, + fx_sw_user->xstate_size > fx_sw_user->extended_size) + return -EINVAL; + +- err = __get_user(magic2, (__u32 *) (((void *)fpstate) + ++ err = __get_user(magic2, (__u32 __user *) (((void __user *)fpstate) + + fx_sw_user->extended_size - + FP_XSTATE_MAGIC2_SIZE)); + if (err) +@@ -267,7 +267,7 @@ fx_only: + * the other extended state. + */ + xrstor_state(init_xstate_buf, pcntxt_mask & ~XSTATE_FPSSE); +- return fxrstor_checking((__force struct i387_fxsave_struct *)buf); ++ return fxrstor_checking((struct i387_fxsave_struct __force_kernel *)buf); + } + + /* +@@ -296,7 +296,7 @@ int restore_i387_xstate(void __user *buf) + if (use_xsave()) + err = restore_user_xstate(buf); + else +- err = fxrstor_checking((__force struct i387_fxsave_struct *) ++ err = fxrstor_checking((struct i387_fxsave_struct __force_kernel *) + buf); + if (unlikely(err)) { + /* +diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c +index 9fed5be..18fd595 100644 +--- a/arch/x86/kvm/cpuid.c ++++ b/arch/x86/kvm/cpuid.c +@@ -124,15 +124,20 @@ int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu, + struct kvm_cpuid2 *cpuid, + struct kvm_cpuid_entry2 __user *entries) + { +- int r; ++ int r, i; + + r = -E2BIG; + if (cpuid->nent > KVM_MAX_CPUID_ENTRIES) + goto out; + r = -EFAULT; +- if (copy_from_user(&vcpu->arch.cpuid_entries, entries, +- cpuid->nent * sizeof(struct kvm_cpuid_entry2))) ++ if (!access_ok(VERIFY_READ, entries, cpuid->nent * sizeof(struct kvm_cpuid_entry2))) + goto out; ++ for (i = 0; i < cpuid->nent; ++i) { ++ struct kvm_cpuid_entry2 cpuid_entry; ++ if (__copy_from_user(&cpuid_entry, entries + i, sizeof(cpuid_entry))) ++ goto out; ++ vcpu->arch.cpuid_entries[i] = cpuid_entry; ++ } + vcpu->arch.cpuid_nent = cpuid->nent; + kvm_apic_set_version(vcpu); + kvm_x86_ops->cpuid_update(vcpu); +@@ -147,15 +152,19 @@ int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu, + struct kvm_cpuid2 *cpuid, + struct kvm_cpuid_entry2 __user *entries) + { +- int r; ++ int r, i; + + r = -E2BIG; + if (cpuid->nent < vcpu->arch.cpuid_nent) + goto out; + r = -EFAULT; +- if (copy_to_user(entries, &vcpu->arch.cpuid_entries, +- vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2))) ++ if (!access_ok(VERIFY_WRITE, entries, vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2))) + goto out; ++ for (i = 0; i < vcpu->arch.cpuid_nent; ++i) { ++ struct kvm_cpuid_entry2 cpuid_entry = vcpu->arch.cpuid_entries[i]; ++ if (__copy_to_user(entries + i, &cpuid_entry, sizeof(cpuid_entry))) ++ goto out; ++ } + return 0; + + out: +diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c +index 8375622..b7bca1a 100644 +--- a/arch/x86/kvm/emulate.c ++++ b/arch/x86/kvm/emulate.c +@@ -252,6 +252,7 @@ struct gprefix { + + #define ____emulate_2op(ctxt, _op, _x, _y, _suffix, _dsttype) \ + do { \ ++ unsigned long _tmp; \ + __asm__ __volatile__ ( \ + _PRE_EFLAGS("0", "4", "2") \ + _op _suffix " %"_x"3,%1; " \ +@@ -266,8 +267,6 @@ struct gprefix { + /* Raw emulation: instruction has two explicit operands. */ + #define __emulate_2op_nobyte(ctxt,_op,_wx,_wy,_lx,_ly,_qx,_qy) \ + do { \ +- unsigned long _tmp; \ +- \ + switch ((ctxt)->dst.bytes) { \ + case 2: \ + ____emulate_2op(ctxt,_op,_wx,_wy,"w",u16); \ +@@ -283,7 +282,6 @@ struct gprefix { + + #define __emulate_2op(ctxt,_op,_bx,_by,_wx,_wy,_lx,_ly,_qx,_qy) \ + do { \ +- unsigned long _tmp; \ + switch ((ctxt)->dst.bytes) { \ + case 1: \ + ____emulate_2op(ctxt,_op,_bx,_by,"b",u8); \ +diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c +index 8584322..17d5955 100644 +--- a/arch/x86/kvm/lapic.c ++++ b/arch/x86/kvm/lapic.c +@@ -54,7 +54,7 @@ + #define APIC_BUS_CYCLE_NS 1 + + /* #define apic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg) */ +-#define apic_debug(fmt, arg...) ++#define apic_debug(fmt, arg...) do {} while (0) + + #define APIC_LVT_NUM 6 + /* 14 is the version for Xeon and Pentium 8.4.8*/ +diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h +index df5a703..63748a7 100644 +--- a/arch/x86/kvm/paging_tmpl.h ++++ b/arch/x86/kvm/paging_tmpl.h +@@ -197,7 +197,7 @@ retry_walk: + if (unlikely(kvm_is_error_hva(host_addr))) + goto error; + +- ptep_user = (pt_element_t __user *)((void *)host_addr + offset); ++ ptep_user = (pt_element_t __force_user *)((void *)host_addr + offset); + if (unlikely(__copy_from_user(&pte, ptep_user, sizeof(pte)))) + goto error; + +diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c +index e334389..6839087 100644 +--- a/arch/x86/kvm/svm.c ++++ b/arch/x86/kvm/svm.c +@@ -3509,7 +3509,11 @@ static void reload_tss(struct kvm_vcpu *vcpu) + int cpu = raw_smp_processor_id(); + + struct svm_cpu_data *sd = per_cpu(svm_data, cpu); ++ ++ pax_open_kernel(); + sd->tss_desc->type = 9; /* available 32/64-bit TSS */ ++ pax_close_kernel(); ++ + load_TR_desc(); + } + +@@ -3887,6 +3891,10 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu) + #endif + #endif + ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF) ++ __set_fs(current_thread_info()->addr_limit); ++#endif ++ + reload_tss(vcpu); + + local_irq_disable(); +diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c +index 4ff0ab9..2ff68d3 100644 +--- a/arch/x86/kvm/vmx.c ++++ b/arch/x86/kvm/vmx.c +@@ -1303,7 +1303,11 @@ static void reload_tss(void) + struct desc_struct *descs; + + descs = (void *)gdt->address; ++ ++ pax_open_kernel(); + descs[GDT_ENTRY_TSS].type = 9; /* available TSS */ ++ pax_close_kernel(); ++ + load_TR_desc(); + } + +@@ -2625,8 +2629,11 @@ static __init int hardware_setup(void) + if (!cpu_has_vmx_flexpriority()) + flexpriority_enabled = 0; + +- if (!cpu_has_vmx_tpr_shadow()) +- kvm_x86_ops->update_cr8_intercept = NULL; ++ if (!cpu_has_vmx_tpr_shadow()) { ++ pax_open_kernel(); ++ *(void **)&kvm_x86_ops->update_cr8_intercept = NULL; ++ pax_close_kernel(); ++ } + + if (enable_ept && !cpu_has_vmx_ept_2m_page()) + kvm_disable_largepages(); +@@ -3642,7 +3649,7 @@ static void vmx_set_constant_host_state(void) + vmcs_writel(HOST_IDTR_BASE, dt.address); /* 22.2.4 */ + + asm("mov $.Lkvm_vmx_return, %0" : "=r"(tmpl)); +- vmcs_writel(HOST_RIP, tmpl); /* 22.2.5 */ ++ vmcs_writel(HOST_RIP, ktla_ktva(tmpl)); /* 22.2.5 */ + + rdmsr(MSR_IA32_SYSENTER_CS, low32, high32); + vmcs_write32(HOST_IA32_SYSENTER_CS, low32); +@@ -6180,6 +6187,12 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu) + "jmp .Lkvm_vmx_return \n\t" + ".Llaunched: " __ex(ASM_VMX_VMRESUME) "\n\t" + ".Lkvm_vmx_return: " ++ ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) ++ "ljmp %[cs],$.Lkvm_vmx_return2\n\t" ++ ".Lkvm_vmx_return2: " ++#endif ++ + /* Save guest registers, load host registers, keep flags */ + "mov %0, %c[wordsize](%%"R"sp) \n\t" + "pop %0 \n\t" +@@ -6228,6 +6241,11 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu) + #endif + [cr2]"i"(offsetof(struct vcpu_vmx, vcpu.arch.cr2)), + [wordsize]"i"(sizeof(ulong)) ++ ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) ++ ,[cs]"i"(__KERNEL_CS) ++#endif ++ + : "cc", "memory" + , R"ax", R"bx", R"di", R"si" + #ifdef CONFIG_X86_64 +@@ -6256,7 +6274,16 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu) + } + } + +- asm("mov %0, %%ds; mov %0, %%es" : : "r"(__USER_DS)); ++ asm("mov %0, %%ds; mov %0, %%es; mov %0, %%ss" : : "r"(__KERNEL_DS)); ++ ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) ++ loadsegment(fs, __KERNEL_PERCPU); ++#endif ++ ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF) ++ __set_fs(current_thread_info()->addr_limit); ++#endif ++ + vmx->loaded_vmcs->launched = 1; + + vmx->exit_reason = vmcs_read32(VM_EXIT_REASON); +diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c +index 185a2b8..866d2a6 100644 +--- a/arch/x86/kvm/x86.c ++++ b/arch/x86/kvm/x86.c +@@ -1357,8 +1357,8 @@ static int xen_hvm_config(struct kvm_vcpu *vcpu, u64 data) + { + struct kvm *kvm = vcpu->kvm; + int lm = is_long_mode(vcpu); +- u8 *blob_addr = lm ? (u8 *)(long)kvm->arch.xen_hvm_config.blob_addr_64 +- : (u8 *)(long)kvm->arch.xen_hvm_config.blob_addr_32; ++ u8 __user *blob_addr = lm ? (u8 __user *)(long)kvm->arch.xen_hvm_config.blob_addr_64 ++ : (u8 __user *)(long)kvm->arch.xen_hvm_config.blob_addr_32; + u8 blob_size = lm ? kvm->arch.xen_hvm_config.blob_size_64 + : kvm->arch.xen_hvm_config.blob_size_32; + u32 page_num = data & ~PAGE_MASK; +@@ -2213,6 +2213,8 @@ long kvm_arch_dev_ioctl(struct file *filp, + if (n < msr_list.nmsrs) + goto out; + r = -EFAULT; ++ if (num_msrs_to_save > ARRAY_SIZE(msrs_to_save)) ++ goto out; + if (copy_to_user(user_msr_list->indices, &msrs_to_save, + num_msrs_to_save * sizeof(u32))) + goto out; +@@ -2338,7 +2340,7 @@ static int kvm_vcpu_ioctl_set_lapic(struct kvm_vcpu *vcpu, + static int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, + struct kvm_interrupt *irq) + { +- if (irq->irq < 0 || irq->irq >= 256) ++ if (irq->irq >= 256) + return -EINVAL; + if (irqchip_in_kernel(vcpu->kvm)) + return -ENXIO; +@@ -4860,7 +4862,7 @@ static void kvm_set_mmio_spte_mask(void) + kvm_mmu_set_mmio_spte_mask(mask); + } + +-int kvm_arch_init(void *opaque) ++int kvm_arch_init(const void *opaque) + { + int r; + struct kvm_x86_ops *ops = (struct kvm_x86_ops *)opaque; +diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c +index 642d880..44e0f3f 100644 +--- a/arch/x86/lguest/boot.c ++++ b/arch/x86/lguest/boot.c +@@ -1200,9 +1200,10 @@ static __init int early_put_chars(u32 vtermno, const char *buf, int count) + * Rebooting also tells the Host we're finished, but the RESTART flag tells the + * Launcher to reboot us. + */ +-static void lguest_restart(char *reason) ++static __noreturn void lguest_restart(char *reason) + { + hcall(LHCALL_SHUTDOWN, __pa(reason), LGUEST_SHUTDOWN_RESTART, 0, 0); ++ BUG(); + } + + /*G:050 +diff --git a/arch/x86/lib/atomic64_386_32.S b/arch/x86/lib/atomic64_386_32.S +index 00933d5..3a64af9 100644 +--- a/arch/x86/lib/atomic64_386_32.S ++++ b/arch/x86/lib/atomic64_386_32.S +@@ -48,6 +48,10 @@ BEGIN(read) + movl (v), %eax + movl 4(v), %edx + RET_ENDP ++BEGIN(read_unchecked) ++ movl (v), %eax ++ movl 4(v), %edx ++RET_ENDP + #undef v + + #define v %esi +@@ -55,6 +59,10 @@ BEGIN(set) + movl %ebx, (v) + movl %ecx, 4(v) + RET_ENDP ++BEGIN(set_unchecked) ++ movl %ebx, (v) ++ movl %ecx, 4(v) ++RET_ENDP + #undef v + + #define v %esi +@@ -70,6 +78,20 @@ RET_ENDP + BEGIN(add) + addl %eax, (v) + adcl %edx, 4(v) ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ jno 0f ++ subl %eax, (v) ++ sbbl %edx, 4(v) ++ int $4 ++0: ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++RET_ENDP ++BEGIN(add_unchecked) ++ addl %eax, (v) ++ adcl %edx, 4(v) + RET_ENDP + #undef v + +@@ -77,6 +99,24 @@ RET_ENDP + BEGIN(add_return) + addl (v), %eax + adcl 4(v), %edx ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ into ++1234: ++ _ASM_EXTABLE(1234b, 2f) ++#endif ++ ++ movl %eax, (v) ++ movl %edx, 4(v) ++ ++#ifdef CONFIG_PAX_REFCOUNT ++2: ++#endif ++ ++RET_ENDP ++BEGIN(add_return_unchecked) ++ addl (v), %eax ++ adcl 4(v), %edx + movl %eax, (v) + movl %edx, 4(v) + RET_ENDP +@@ -86,6 +126,20 @@ RET_ENDP + BEGIN(sub) + subl %eax, (v) + sbbl %edx, 4(v) ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ jno 0f ++ addl %eax, (v) ++ adcl %edx, 4(v) ++ int $4 ++0: ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++RET_ENDP ++BEGIN(sub_unchecked) ++ subl %eax, (v) ++ sbbl %edx, 4(v) + RET_ENDP + #undef v + +@@ -96,6 +150,27 @@ BEGIN(sub_return) + sbbl $0, %edx + addl (v), %eax + adcl 4(v), %edx ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ into ++1234: ++ _ASM_EXTABLE(1234b, 2f) ++#endif ++ ++ movl %eax, (v) ++ movl %edx, 4(v) ++ ++#ifdef CONFIG_PAX_REFCOUNT ++2: ++#endif ++ ++RET_ENDP ++BEGIN(sub_return_unchecked) ++ negl %edx ++ negl %eax ++ sbbl $0, %edx ++ addl (v), %eax ++ adcl 4(v), %edx + movl %eax, (v) + movl %edx, 4(v) + RET_ENDP +@@ -105,6 +180,20 @@ RET_ENDP + BEGIN(inc) + addl $1, (v) + adcl $0, 4(v) ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ jno 0f ++ subl $1, (v) ++ sbbl $0, 4(v) ++ int $4 ++0: ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++RET_ENDP ++BEGIN(inc_unchecked) ++ addl $1, (v) ++ adcl $0, 4(v) + RET_ENDP + #undef v + +@@ -114,6 +203,26 @@ BEGIN(inc_return) + movl 4(v), %edx + addl $1, %eax + adcl $0, %edx ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ into ++1234: ++ _ASM_EXTABLE(1234b, 2f) ++#endif ++ ++ movl %eax, (v) ++ movl %edx, 4(v) ++ ++#ifdef CONFIG_PAX_REFCOUNT ++2: ++#endif ++ ++RET_ENDP ++BEGIN(inc_return_unchecked) ++ movl (v), %eax ++ movl 4(v), %edx ++ addl $1, %eax ++ adcl $0, %edx + movl %eax, (v) + movl %edx, 4(v) + RET_ENDP +@@ -123,6 +232,20 @@ RET_ENDP + BEGIN(dec) + subl $1, (v) + sbbl $0, 4(v) ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ jno 0f ++ addl $1, (v) ++ adcl $0, 4(v) ++ int $4 ++0: ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++RET_ENDP ++BEGIN(dec_unchecked) ++ subl $1, (v) ++ sbbl $0, 4(v) + RET_ENDP + #undef v + +@@ -132,6 +255,26 @@ BEGIN(dec_return) + movl 4(v), %edx + subl $1, %eax + sbbl $0, %edx ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ into ++1234: ++ _ASM_EXTABLE(1234b, 2f) ++#endif ++ ++ movl %eax, (v) ++ movl %edx, 4(v) ++ ++#ifdef CONFIG_PAX_REFCOUNT ++2: ++#endif ++ ++RET_ENDP ++BEGIN(dec_return_unchecked) ++ movl (v), %eax ++ movl 4(v), %edx ++ subl $1, %eax ++ sbbl $0, %edx + movl %eax, (v) + movl %edx, 4(v) + RET_ENDP +@@ -143,6 +286,13 @@ BEGIN(add_unless) + adcl %edx, %edi + addl (v), %eax + adcl 4(v), %edx ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ into ++1234: ++ _ASM_EXTABLE(1234b, 2f) ++#endif ++ + cmpl %eax, %ecx + je 3f + 1: +@@ -168,6 +318,13 @@ BEGIN(inc_not_zero) + 1: + addl $1, %eax + adcl $0, %edx ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ into ++1234: ++ _ASM_EXTABLE(1234b, 2f) ++#endif ++ + movl %eax, (v) + movl %edx, 4(v) + movl $1, %eax +@@ -186,6 +343,13 @@ BEGIN(dec_if_positive) + movl 4(v), %edx + subl $1, %eax + sbbl $0, %edx ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ into ++1234: ++ _ASM_EXTABLE(1234b, 1f) ++#endif ++ + js 1f + movl %eax, (v) + movl %edx, 4(v) +diff --git a/arch/x86/lib/atomic64_cx8_32.S b/arch/x86/lib/atomic64_cx8_32.S +index f5cc9eb..51fa319 100644 +--- a/arch/x86/lib/atomic64_cx8_32.S ++++ b/arch/x86/lib/atomic64_cx8_32.S +@@ -35,10 +35,20 @@ ENTRY(atomic64_read_cx8) + CFI_STARTPROC + + read64 %ecx ++ pax_force_retaddr + ret + CFI_ENDPROC + ENDPROC(atomic64_read_cx8) + ++ENTRY(atomic64_read_unchecked_cx8) ++ CFI_STARTPROC ++ ++ read64 %ecx ++ pax_force_retaddr ++ ret ++ CFI_ENDPROC ++ENDPROC(atomic64_read_unchecked_cx8) ++ + ENTRY(atomic64_set_cx8) + CFI_STARTPROC + +@@ -48,10 +58,25 @@ ENTRY(atomic64_set_cx8) + cmpxchg8b (%esi) + jne 1b + ++ pax_force_retaddr + ret + CFI_ENDPROC + ENDPROC(atomic64_set_cx8) + ++ENTRY(atomic64_set_unchecked_cx8) ++ CFI_STARTPROC ++ ++1: ++/* we don't need LOCK_PREFIX since aligned 64-bit writes ++ * are atomic on 586 and newer */ ++ cmpxchg8b (%esi) ++ jne 1b ++ ++ pax_force_retaddr ++ ret ++ CFI_ENDPROC ++ENDPROC(atomic64_set_unchecked_cx8) ++ + ENTRY(atomic64_xchg_cx8) + CFI_STARTPROC + +@@ -60,12 +85,13 @@ ENTRY(atomic64_xchg_cx8) + cmpxchg8b (%esi) + jne 1b + ++ pax_force_retaddr + ret + CFI_ENDPROC + ENDPROC(atomic64_xchg_cx8) + +-.macro addsub_return func ins insc +-ENTRY(atomic64_\func\()_return_cx8) ++.macro addsub_return func ins insc unchecked="" ++ENTRY(atomic64_\func\()_return\unchecked\()_cx8) + CFI_STARTPROC + SAVE ebp + SAVE ebx +@@ -82,27 +108,44 @@ ENTRY(atomic64_\func\()_return_cx8) + movl %edx, %ecx + \ins\()l %esi, %ebx + \insc\()l %edi, %ecx ++ ++.ifb \unchecked ++#ifdef CONFIG_PAX_REFCOUNT ++ into ++2: ++ _ASM_EXTABLE(2b, 3f) ++#endif ++.endif ++ + LOCK_PREFIX + cmpxchg8b (%ebp) + jne 1b +- +-10: + movl %ebx, %eax + movl %ecx, %edx ++ ++.ifb \unchecked ++#ifdef CONFIG_PAX_REFCOUNT ++3: ++#endif ++.endif ++ + RESTORE edi + RESTORE esi + RESTORE ebx + RESTORE ebp ++ pax_force_retaddr + ret + CFI_ENDPROC +-ENDPROC(atomic64_\func\()_return_cx8) ++ENDPROC(atomic64_\func\()_return\unchecked\()_cx8) + .endm + + addsub_return add add adc + addsub_return sub sub sbb ++addsub_return add add adc _unchecked ++addsub_return sub sub sbb _unchecked + +-.macro incdec_return func ins insc +-ENTRY(atomic64_\func\()_return_cx8) ++.macro incdec_return func ins insc unchecked="" ++ENTRY(atomic64_\func\()_return\unchecked\()_cx8) + CFI_STARTPROC + SAVE ebx + +@@ -112,21 +155,39 @@ ENTRY(atomic64_\func\()_return_cx8) + movl %edx, %ecx + \ins\()l $1, %ebx + \insc\()l $0, %ecx ++ ++.ifb \unchecked ++#ifdef CONFIG_PAX_REFCOUNT ++ into ++2: ++ _ASM_EXTABLE(2b, 3f) ++#endif ++.endif ++ + LOCK_PREFIX + cmpxchg8b (%esi) + jne 1b + +-10: + movl %ebx, %eax + movl %ecx, %edx ++ ++.ifb \unchecked ++#ifdef CONFIG_PAX_REFCOUNT ++3: ++#endif ++.endif ++ + RESTORE ebx ++ pax_force_retaddr + ret + CFI_ENDPROC +-ENDPROC(atomic64_\func\()_return_cx8) ++ENDPROC(atomic64_\func\()_return\unchecked\()_cx8) + .endm + + incdec_return inc add adc + incdec_return dec sub sbb ++incdec_return inc add adc _unchecked ++incdec_return dec sub sbb _unchecked + + ENTRY(atomic64_dec_if_positive_cx8) + CFI_STARTPROC +@@ -138,6 +199,13 @@ ENTRY(atomic64_dec_if_positive_cx8) + movl %edx, %ecx + subl $1, %ebx + sbb $0, %ecx ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ into ++1234: ++ _ASM_EXTABLE(1234b, 2f) ++#endif ++ + js 2f + LOCK_PREFIX + cmpxchg8b (%esi) +@@ -147,6 +215,7 @@ ENTRY(atomic64_dec_if_positive_cx8) + movl %ebx, %eax + movl %ecx, %edx + RESTORE ebx ++ pax_force_retaddr + ret + CFI_ENDPROC + ENDPROC(atomic64_dec_if_positive_cx8) +@@ -171,6 +240,13 @@ ENTRY(atomic64_add_unless_cx8) + movl %edx, %ecx + addl %ebp, %ebx + adcl %edi, %ecx ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ into ++1234: ++ _ASM_EXTABLE(1234b, 3f) ++#endif ++ + LOCK_PREFIX + cmpxchg8b (%esi) + jne 1b +@@ -181,6 +257,7 @@ ENTRY(atomic64_add_unless_cx8) + CFI_ADJUST_CFA_OFFSET -8 + RESTORE ebx + RESTORE ebp ++ pax_force_retaddr + ret + 4: + cmpl %edx, 4(%esp) +@@ -203,6 +280,13 @@ ENTRY(atomic64_inc_not_zero_cx8) + xorl %ecx, %ecx + addl $1, %ebx + adcl %edx, %ecx ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ into ++1234: ++ _ASM_EXTABLE(1234b, 3f) ++#endif ++ + LOCK_PREFIX + cmpxchg8b (%esi) + jne 1b +@@ -210,6 +294,7 @@ ENTRY(atomic64_inc_not_zero_cx8) + movl $1, %eax + 3: + RESTORE ebx ++ pax_force_retaddr + ret + CFI_ENDPROC + ENDPROC(atomic64_inc_not_zero_cx8) +diff --git a/arch/x86/lib/checksum_32.S b/arch/x86/lib/checksum_32.S +index 78d16a5..fbcf666 100644 +--- a/arch/x86/lib/checksum_32.S ++++ b/arch/x86/lib/checksum_32.S +@@ -28,7 +28,8 @@ + #include <linux/linkage.h> + #include <asm/dwarf2.h> + #include <asm/errno.h> +- ++#include <asm/segment.h> ++ + /* + * computes a partial checksum, e.g. for TCP/UDP fragments + */ +@@ -296,9 +297,24 @@ unsigned int csum_partial_copy_generic (const char *src, char *dst, + + #define ARGBASE 16 + #define FP 12 +- +-ENTRY(csum_partial_copy_generic) ++ ++ENTRY(csum_partial_copy_generic_to_user) + CFI_STARTPROC ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ pushl_cfi %gs ++ popl_cfi %es ++ jmp csum_partial_copy_generic ++#endif ++ ++ENTRY(csum_partial_copy_generic_from_user) ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ pushl_cfi %gs ++ popl_cfi %ds ++#endif ++ ++ENTRY(csum_partial_copy_generic) + subl $4,%esp + CFI_ADJUST_CFA_OFFSET 4 + pushl_cfi %edi +@@ -320,7 +336,7 @@ ENTRY(csum_partial_copy_generic) + jmp 4f + SRC(1: movw (%esi), %bx ) + addl $2, %esi +-DST( movw %bx, (%edi) ) ++DST( movw %bx, %es:(%edi) ) + addl $2, %edi + addw %bx, %ax + adcl $0, %eax +@@ -332,30 +348,30 @@ DST( movw %bx, (%edi) ) + SRC(1: movl (%esi), %ebx ) + SRC( movl 4(%esi), %edx ) + adcl %ebx, %eax +-DST( movl %ebx, (%edi) ) ++DST( movl %ebx, %es:(%edi) ) + adcl %edx, %eax +-DST( movl %edx, 4(%edi) ) ++DST( movl %edx, %es:4(%edi) ) + + SRC( movl 8(%esi), %ebx ) + SRC( movl 12(%esi), %edx ) + adcl %ebx, %eax +-DST( movl %ebx, 8(%edi) ) ++DST( movl %ebx, %es:8(%edi) ) + adcl %edx, %eax +-DST( movl %edx, 12(%edi) ) ++DST( movl %edx, %es:12(%edi) ) + + SRC( movl 16(%esi), %ebx ) + SRC( movl 20(%esi), %edx ) + adcl %ebx, %eax +-DST( movl %ebx, 16(%edi) ) ++DST( movl %ebx, %es:16(%edi) ) + adcl %edx, %eax +-DST( movl %edx, 20(%edi) ) ++DST( movl %edx, %es:20(%edi) ) + + SRC( movl 24(%esi), %ebx ) + SRC( movl 28(%esi), %edx ) + adcl %ebx, %eax +-DST( movl %ebx, 24(%edi) ) ++DST( movl %ebx, %es:24(%edi) ) + adcl %edx, %eax +-DST( movl %edx, 28(%edi) ) ++DST( movl %edx, %es:28(%edi) ) + + lea 32(%esi), %esi + lea 32(%edi), %edi +@@ -369,7 +385,7 @@ DST( movl %edx, 28(%edi) ) + shrl $2, %edx # This clears CF + SRC(3: movl (%esi), %ebx ) + adcl %ebx, %eax +-DST( movl %ebx, (%edi) ) ++DST( movl %ebx, %es:(%edi) ) + lea 4(%esi), %esi + lea 4(%edi), %edi + dec %edx +@@ -381,12 +397,12 @@ DST( movl %ebx, (%edi) ) + jb 5f + SRC( movw (%esi), %cx ) + leal 2(%esi), %esi +-DST( movw %cx, (%edi) ) ++DST( movw %cx, %es:(%edi) ) + leal 2(%edi), %edi + je 6f + shll $16,%ecx + SRC(5: movb (%esi), %cl ) +-DST( movb %cl, (%edi) ) ++DST( movb %cl, %es:(%edi) ) + 6: addl %ecx, %eax + adcl $0, %eax + 7: +@@ -397,7 +413,7 @@ DST( movb %cl, (%edi) ) + + 6001: + movl ARGBASE+20(%esp), %ebx # src_err_ptr +- movl $-EFAULT, (%ebx) ++ movl $-EFAULT, %ss:(%ebx) + + # zero the complete destination - computing the rest + # is too much work +@@ -410,11 +426,15 @@ DST( movb %cl, (%edi) ) + + 6002: + movl ARGBASE+24(%esp), %ebx # dst_err_ptr +- movl $-EFAULT,(%ebx) ++ movl $-EFAULT,%ss:(%ebx) + jmp 5000b + + .previous + ++ pushl_cfi %ss ++ popl_cfi %ds ++ pushl_cfi %ss ++ popl_cfi %es + popl_cfi %ebx + CFI_RESTORE ebx + popl_cfi %esi +@@ -424,26 +444,43 @@ DST( movb %cl, (%edi) ) + popl_cfi %ecx # equivalent to addl $4,%esp + ret + CFI_ENDPROC +-ENDPROC(csum_partial_copy_generic) ++ENDPROC(csum_partial_copy_generic_to_user) + + #else + + /* Version for PentiumII/PPro */ + + #define ROUND1(x) \ ++ nop; nop; nop; \ + SRC(movl x(%esi), %ebx ) ; \ + addl %ebx, %eax ; \ +- DST(movl %ebx, x(%edi) ) ; ++ DST(movl %ebx, %es:x(%edi)) ; + + #define ROUND(x) \ ++ nop; nop; nop; \ + SRC(movl x(%esi), %ebx ) ; \ + adcl %ebx, %eax ; \ +- DST(movl %ebx, x(%edi) ) ; ++ DST(movl %ebx, %es:x(%edi)) ; + + #define ARGBASE 12 +- +-ENTRY(csum_partial_copy_generic) ++ ++ENTRY(csum_partial_copy_generic_to_user) + CFI_STARTPROC ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ pushl_cfi %gs ++ popl_cfi %es ++ jmp csum_partial_copy_generic ++#endif ++ ++ENTRY(csum_partial_copy_generic_from_user) ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ pushl_cfi %gs ++ popl_cfi %ds ++#endif ++ ++ENTRY(csum_partial_copy_generic) + pushl_cfi %ebx + CFI_REL_OFFSET ebx, 0 + pushl_cfi %edi +@@ -464,7 +501,7 @@ ENTRY(csum_partial_copy_generic) + subl %ebx, %edi + lea -1(%esi),%edx + andl $-32,%edx +- lea 3f(%ebx,%ebx), %ebx ++ lea 3f(%ebx,%ebx,2), %ebx + testl %esi, %esi + jmp *%ebx + 1: addl $64,%esi +@@ -485,19 +522,19 @@ ENTRY(csum_partial_copy_generic) + jb 5f + SRC( movw (%esi), %dx ) + leal 2(%esi), %esi +-DST( movw %dx, (%edi) ) ++DST( movw %dx, %es:(%edi) ) + leal 2(%edi), %edi + je 6f + shll $16,%edx + 5: + SRC( movb (%esi), %dl ) +-DST( movb %dl, (%edi) ) ++DST( movb %dl, %es:(%edi) ) + 6: addl %edx, %eax + adcl $0, %eax + 7: + .section .fixup, "ax" + 6001: movl ARGBASE+20(%esp), %ebx # src_err_ptr +- movl $-EFAULT, (%ebx) ++ movl $-EFAULT, %ss:(%ebx) + # zero the complete destination (computing the rest is too much work) + movl ARGBASE+8(%esp),%edi # dst + movl ARGBASE+12(%esp),%ecx # len +@@ -505,10 +542,17 @@ DST( movb %dl, (%edi) ) + rep; stosb + jmp 7b + 6002: movl ARGBASE+24(%esp), %ebx # dst_err_ptr +- movl $-EFAULT, (%ebx) ++ movl $-EFAULT, %ss:(%ebx) + jmp 7b + .previous + ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ pushl_cfi %ss ++ popl_cfi %ds ++ pushl_cfi %ss ++ popl_cfi %es ++#endif ++ + popl_cfi %esi + CFI_RESTORE esi + popl_cfi %edi +@@ -517,7 +561,7 @@ DST( movb %dl, (%edi) ) + CFI_RESTORE ebx + ret + CFI_ENDPROC +-ENDPROC(csum_partial_copy_generic) ++ENDPROC(csum_partial_copy_generic_to_user) + + #undef ROUND + #undef ROUND1 +diff --git a/arch/x86/lib/clear_page_64.S b/arch/x86/lib/clear_page_64.S +index f2145cf..cea889d 100644 +--- a/arch/x86/lib/clear_page_64.S ++++ b/arch/x86/lib/clear_page_64.S +@@ -11,6 +11,7 @@ ENTRY(clear_page_c) + movl $4096/8,%ecx + xorl %eax,%eax + rep stosq ++ pax_force_retaddr + ret + CFI_ENDPROC + ENDPROC(clear_page_c) +@@ -20,6 +21,7 @@ ENTRY(clear_page_c_e) + movl $4096,%ecx + xorl %eax,%eax + rep stosb ++ pax_force_retaddr + ret + CFI_ENDPROC + ENDPROC(clear_page_c_e) +@@ -43,6 +45,7 @@ ENTRY(clear_page) + leaq 64(%rdi),%rdi + jnz .Lloop + nop ++ pax_force_retaddr + ret + CFI_ENDPROC + .Lclear_page_end: +@@ -58,7 +61,7 @@ ENDPROC(clear_page) + + #include <asm/cpufeature.h> + +- .section .altinstr_replacement,"ax" ++ .section .altinstr_replacement,"a" + 1: .byte 0xeb /* jmp <disp8> */ + .byte (clear_page_c - clear_page) - (2f - 1b) /* offset */ + 2: .byte 0xeb /* jmp <disp8> */ +diff --git a/arch/x86/lib/cmpxchg16b_emu.S b/arch/x86/lib/cmpxchg16b_emu.S +index 1e572c5..2a162cd 100644 +--- a/arch/x86/lib/cmpxchg16b_emu.S ++++ b/arch/x86/lib/cmpxchg16b_emu.S +@@ -53,11 +53,13 @@ this_cpu_cmpxchg16b_emu: + + popf + mov $1, %al ++ pax_force_retaddr + ret + + not_same: + popf + xor %al,%al ++ pax_force_retaddr + ret + + CFI_ENDPROC +diff --git a/arch/x86/lib/copy_page_64.S b/arch/x86/lib/copy_page_64.S +index 6b34d04..dccb07f 100644 +--- a/arch/x86/lib/copy_page_64.S ++++ b/arch/x86/lib/copy_page_64.S +@@ -9,6 +9,7 @@ copy_page_c: + CFI_STARTPROC + movl $4096/8,%ecx + rep movsq ++ pax_force_retaddr + ret + CFI_ENDPROC + ENDPROC(copy_page_c) +@@ -20,12 +21,14 @@ ENDPROC(copy_page_c) + + ENTRY(copy_page) + CFI_STARTPROC +- subq $2*8,%rsp +- CFI_ADJUST_CFA_OFFSET 2*8 ++ subq $3*8,%rsp ++ CFI_ADJUST_CFA_OFFSET 3*8 + movq %rbx,(%rsp) + CFI_REL_OFFSET rbx, 0 + movq %r12,1*8(%rsp) + CFI_REL_OFFSET r12, 1*8 ++ movq %r13,2*8(%rsp) ++ CFI_REL_OFFSET r13, 2*8 + + movl $(4096/64)-5,%ecx + .p2align 4 +@@ -37,7 +40,7 @@ ENTRY(copy_page) + movq 16 (%rsi), %rdx + movq 24 (%rsi), %r8 + movq 32 (%rsi), %r9 +- movq 40 (%rsi), %r10 ++ movq 40 (%rsi), %r13 + movq 48 (%rsi), %r11 + movq 56 (%rsi), %r12 + +@@ -48,7 +51,7 @@ ENTRY(copy_page) + movq %rdx, 16 (%rdi) + movq %r8, 24 (%rdi) + movq %r9, 32 (%rdi) +- movq %r10, 40 (%rdi) ++ movq %r13, 40 (%rdi) + movq %r11, 48 (%rdi) + movq %r12, 56 (%rdi) + +@@ -67,7 +70,7 @@ ENTRY(copy_page) + movq 16 (%rsi), %rdx + movq 24 (%rsi), %r8 + movq 32 (%rsi), %r9 +- movq 40 (%rsi), %r10 ++ movq 40 (%rsi), %r13 + movq 48 (%rsi), %r11 + movq 56 (%rsi), %r12 + +@@ -76,7 +79,7 @@ ENTRY(copy_page) + movq %rdx, 16 (%rdi) + movq %r8, 24 (%rdi) + movq %r9, 32 (%rdi) +- movq %r10, 40 (%rdi) ++ movq %r13, 40 (%rdi) + movq %r11, 48 (%rdi) + movq %r12, 56 (%rdi) + +@@ -89,8 +92,11 @@ ENTRY(copy_page) + CFI_RESTORE rbx + movq 1*8(%rsp),%r12 + CFI_RESTORE r12 +- addq $2*8,%rsp +- CFI_ADJUST_CFA_OFFSET -2*8 ++ movq 2*8(%rsp),%r13 ++ CFI_RESTORE r13 ++ addq $3*8,%rsp ++ CFI_ADJUST_CFA_OFFSET -3*8 ++ pax_force_retaddr + ret + .Lcopy_page_end: + CFI_ENDPROC +@@ -101,7 +107,7 @@ ENDPROC(copy_page) + + #include <asm/cpufeature.h> + +- .section .altinstr_replacement,"ax" ++ .section .altinstr_replacement,"a" + 1: .byte 0xeb /* jmp <disp8> */ + .byte (copy_page_c - copy_page) - (2f - 1b) /* offset */ + 2: +diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S +index 0248402..821c786 100644 +--- a/arch/x86/lib/copy_user_64.S ++++ b/arch/x86/lib/copy_user_64.S +@@ -16,6 +16,7 @@ + #include <asm/thread_info.h> + #include <asm/cpufeature.h> + #include <asm/alternative-asm.h> ++#include <asm/pgtable.h> + + /* + * By placing feature2 after feature1 in altinstructions section, we logically +@@ -29,7 +30,7 @@ + .byte 0xe9 /* 32bit jump */ + .long \orig-1f /* by default jump to orig */ + 1: +- .section .altinstr_replacement,"ax" ++ .section .altinstr_replacement,"a" + 2: .byte 0xe9 /* near jump with 32bit immediate */ + .long \alt1-1b /* offset */ /* or alternatively to alt1 */ + 3: .byte 0xe9 /* near jump with 32bit immediate */ +@@ -71,47 +72,20 @@ + #endif + .endm + +-/* Standard copy_to_user with segment limit checking */ +-ENTRY(_copy_to_user) +- CFI_STARTPROC +- GET_THREAD_INFO(%rax) +- movq %rdi,%rcx +- addq %rdx,%rcx +- jc bad_to_user +- cmpq TI_addr_limit(%rax),%rcx +- ja bad_to_user +- ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS, \ +- copy_user_generic_unrolled,copy_user_generic_string, \ +- copy_user_enhanced_fast_string +- CFI_ENDPROC +-ENDPROC(_copy_to_user) +- +-/* Standard copy_from_user with segment limit checking */ +-ENTRY(_copy_from_user) +- CFI_STARTPROC +- GET_THREAD_INFO(%rax) +- movq %rsi,%rcx +- addq %rdx,%rcx +- jc bad_from_user +- cmpq TI_addr_limit(%rax),%rcx +- ja bad_from_user +- ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS, \ +- copy_user_generic_unrolled,copy_user_generic_string, \ +- copy_user_enhanced_fast_string +- CFI_ENDPROC +-ENDPROC(_copy_from_user) +- + .section .fixup,"ax" + /* must zero dest */ + ENTRY(bad_from_user) + bad_from_user: + CFI_STARTPROC ++ testl %edx,%edx ++ js bad_to_user + movl %edx,%ecx + xorl %eax,%eax + rep + stosb + bad_to_user: + movl %edx,%eax ++ pax_force_retaddr + ret + CFI_ENDPROC + ENDPROC(bad_from_user) +@@ -141,19 +115,19 @@ ENTRY(copy_user_generic_unrolled) + jz 17f + 1: movq (%rsi),%r8 + 2: movq 1*8(%rsi),%r9 +-3: movq 2*8(%rsi),%r10 ++3: movq 2*8(%rsi),%rax + 4: movq 3*8(%rsi),%r11 + 5: movq %r8,(%rdi) + 6: movq %r9,1*8(%rdi) +-7: movq %r10,2*8(%rdi) ++7: movq %rax,2*8(%rdi) + 8: movq %r11,3*8(%rdi) + 9: movq 4*8(%rsi),%r8 + 10: movq 5*8(%rsi),%r9 +-11: movq 6*8(%rsi),%r10 ++11: movq 6*8(%rsi),%rax + 12: movq 7*8(%rsi),%r11 + 13: movq %r8,4*8(%rdi) + 14: movq %r9,5*8(%rdi) +-15: movq %r10,6*8(%rdi) ++15: movq %rax,6*8(%rdi) + 16: movq %r11,7*8(%rdi) + leaq 64(%rsi),%rsi + leaq 64(%rdi),%rdi +@@ -179,6 +153,7 @@ ENTRY(copy_user_generic_unrolled) + decl %ecx + jnz 21b + 23: xor %eax,%eax ++ pax_force_retaddr + ret + + .section .fixup,"ax" +@@ -251,6 +226,7 @@ ENTRY(copy_user_generic_string) + 3: rep + movsb + 4: xorl %eax,%eax ++ pax_force_retaddr + ret + + .section .fixup,"ax" +@@ -287,6 +263,7 @@ ENTRY(copy_user_enhanced_fast_string) + 1: rep + movsb + 2: xorl %eax,%eax ++ pax_force_retaddr + ret + + .section .fixup,"ax" +diff --git a/arch/x86/lib/copy_user_nocache_64.S b/arch/x86/lib/copy_user_nocache_64.S +index cb0c112..e3a6895 100644 +--- a/arch/x86/lib/copy_user_nocache_64.S ++++ b/arch/x86/lib/copy_user_nocache_64.S +@@ -8,12 +8,14 @@ + + #include <linux/linkage.h> + #include <asm/dwarf2.h> ++#include <asm/alternative-asm.h> + + #define FIX_ALIGNMENT 1 + + #include <asm/current.h> + #include <asm/asm-offsets.h> + #include <asm/thread_info.h> ++#include <asm/pgtable.h> + + .macro ALIGN_DESTINATION + #ifdef FIX_ALIGNMENT +@@ -50,6 +52,15 @@ + */ + ENTRY(__copy_user_nocache) + CFI_STARTPROC ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ mov $PAX_USER_SHADOW_BASE,%rcx ++ cmp %rcx,%rsi ++ jae 1f ++ add %rcx,%rsi ++1: ++#endif ++ + cmpl $8,%edx + jb 20f /* less then 8 bytes, go to byte copy loop */ + ALIGN_DESTINATION +@@ -59,19 +70,19 @@ ENTRY(__copy_user_nocache) + jz 17f + 1: movq (%rsi),%r8 + 2: movq 1*8(%rsi),%r9 +-3: movq 2*8(%rsi),%r10 ++3: movq 2*8(%rsi),%rax + 4: movq 3*8(%rsi),%r11 + 5: movnti %r8,(%rdi) + 6: movnti %r9,1*8(%rdi) +-7: movnti %r10,2*8(%rdi) ++7: movnti %rax,2*8(%rdi) + 8: movnti %r11,3*8(%rdi) + 9: movq 4*8(%rsi),%r8 + 10: movq 5*8(%rsi),%r9 +-11: movq 6*8(%rsi),%r10 ++11: movq 6*8(%rsi),%rax + 12: movq 7*8(%rsi),%r11 + 13: movnti %r8,4*8(%rdi) + 14: movnti %r9,5*8(%rdi) +-15: movnti %r10,6*8(%rdi) ++15: movnti %rax,6*8(%rdi) + 16: movnti %r11,7*8(%rdi) + leaq 64(%rsi),%rsi + leaq 64(%rdi),%rdi +@@ -98,6 +109,7 @@ ENTRY(__copy_user_nocache) + jnz 21b + 23: xorl %eax,%eax + sfence ++ pax_force_retaddr + ret + + .section .fixup,"ax" +diff --git a/arch/x86/lib/csum-copy_64.S b/arch/x86/lib/csum-copy_64.S +index fb903b7..c92b7f7 100644 +--- a/arch/x86/lib/csum-copy_64.S ++++ b/arch/x86/lib/csum-copy_64.S +@@ -8,6 +8,7 @@ + #include <linux/linkage.h> + #include <asm/dwarf2.h> + #include <asm/errno.h> ++#include <asm/alternative-asm.h> + + /* + * Checksum copy with exception handling. +@@ -228,6 +229,7 @@ ENTRY(csum_partial_copy_generic) + CFI_RESTORE rbp + addq $7*8, %rsp + CFI_ADJUST_CFA_OFFSET -7*8 ++ pax_force_retaddr 0, 1 + ret + CFI_RESTORE_STATE + +diff --git a/arch/x86/lib/csum-wrappers_64.c b/arch/x86/lib/csum-wrappers_64.c +index 459b58a..9570bc7 100644 +--- a/arch/x86/lib/csum-wrappers_64.c ++++ b/arch/x86/lib/csum-wrappers_64.c +@@ -52,7 +52,13 @@ csum_partial_copy_from_user(const void __user *src, void *dst, + len -= 2; + } + } +- isum = csum_partial_copy_generic((__force const void *)src, ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if ((unsigned long)src < PAX_USER_SHADOW_BASE) ++ src += PAX_USER_SHADOW_BASE; ++#endif ++ ++ isum = csum_partial_copy_generic((const void __force_kernel *)src, + dst, len, isum, errp, NULL); + if (unlikely(*errp)) + goto out_err; +@@ -105,7 +111,13 @@ csum_partial_copy_to_user(const void *src, void __user *dst, + } + + *errp = 0; +- return csum_partial_copy_generic(src, (void __force *)dst, ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if ((unsigned long)dst < PAX_USER_SHADOW_BASE) ++ dst += PAX_USER_SHADOW_BASE; ++#endif ++ ++ return csum_partial_copy_generic(src, (void __force_kernel *)dst, + len, isum, NULL, errp); + } + EXPORT_SYMBOL(csum_partial_copy_to_user); +diff --git a/arch/x86/lib/getuser.S b/arch/x86/lib/getuser.S +index 51f1504..ddac4c1 100644 +--- a/arch/x86/lib/getuser.S ++++ b/arch/x86/lib/getuser.S +@@ -33,15 +33,38 @@ + #include <asm/asm-offsets.h> + #include <asm/thread_info.h> + #include <asm/asm.h> ++#include <asm/segment.h> ++#include <asm/pgtable.h> ++#include <asm/alternative-asm.h> ++ ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF) ++#define __copyuser_seg gs; ++#else ++#define __copyuser_seg ++#endif + + .text + ENTRY(__get_user_1) + CFI_STARTPROC ++ ++#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) + GET_THREAD_INFO(%_ASM_DX) + cmp TI_addr_limit(%_ASM_DX),%_ASM_AX + jae bad_get_user +-1: movzb (%_ASM_AX),%edx ++ ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++ mov $PAX_USER_SHADOW_BASE,%_ASM_DX ++ cmp %_ASM_DX,%_ASM_AX ++ jae 1234f ++ add %_ASM_DX,%_ASM_AX ++1234: ++#endif ++ ++#endif ++ ++1: __copyuser_seg movzb (%_ASM_AX),%edx + xor %eax,%eax ++ pax_force_retaddr + ret + CFI_ENDPROC + ENDPROC(__get_user_1) +@@ -49,12 +72,26 @@ ENDPROC(__get_user_1) + ENTRY(__get_user_2) + CFI_STARTPROC + add $1,%_ASM_AX ++ ++#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) + jc bad_get_user + GET_THREAD_INFO(%_ASM_DX) + cmp TI_addr_limit(%_ASM_DX),%_ASM_AX + jae bad_get_user +-2: movzwl -1(%_ASM_AX),%edx ++ ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++ mov $PAX_USER_SHADOW_BASE,%_ASM_DX ++ cmp %_ASM_DX,%_ASM_AX ++ jae 1234f ++ add %_ASM_DX,%_ASM_AX ++1234: ++#endif ++ ++#endif ++ ++2: __copyuser_seg movzwl -1(%_ASM_AX),%edx + xor %eax,%eax ++ pax_force_retaddr + ret + CFI_ENDPROC + ENDPROC(__get_user_2) +@@ -62,12 +99,26 @@ ENDPROC(__get_user_2) + ENTRY(__get_user_4) + CFI_STARTPROC + add $3,%_ASM_AX ++ ++#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) + jc bad_get_user + GET_THREAD_INFO(%_ASM_DX) + cmp TI_addr_limit(%_ASM_DX),%_ASM_AX + jae bad_get_user +-3: mov -3(%_ASM_AX),%edx ++ ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++ mov $PAX_USER_SHADOW_BASE,%_ASM_DX ++ cmp %_ASM_DX,%_ASM_AX ++ jae 1234f ++ add %_ASM_DX,%_ASM_AX ++1234: ++#endif ++ ++#endif ++ ++3: __copyuser_seg mov -3(%_ASM_AX),%edx + xor %eax,%eax ++ pax_force_retaddr + ret + CFI_ENDPROC + ENDPROC(__get_user_4) +@@ -80,8 +131,18 @@ ENTRY(__get_user_8) + GET_THREAD_INFO(%_ASM_DX) + cmp TI_addr_limit(%_ASM_DX),%_ASM_AX + jae bad_get_user ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ mov $PAX_USER_SHADOW_BASE,%_ASM_DX ++ cmp %_ASM_DX,%_ASM_AX ++ jae 1234f ++ add %_ASM_DX,%_ASM_AX ++1234: ++#endif ++ + 4: movq -7(%_ASM_AX),%_ASM_DX + xor %eax,%eax ++ pax_force_retaddr + ret + CFI_ENDPROC + ENDPROC(__get_user_8) +@@ -91,6 +152,7 @@ bad_get_user: + CFI_STARTPROC + xor %edx,%edx + mov $(-EFAULT),%_ASM_AX ++ pax_force_retaddr + ret + CFI_ENDPROC + END(bad_get_user) +diff --git a/arch/x86/lib/insn.c b/arch/x86/lib/insn.c +index b1e6c4b..21ae8fc 100644 +--- a/arch/x86/lib/insn.c ++++ b/arch/x86/lib/insn.c +@@ -21,6 +21,11 @@ + #include <linux/string.h> + #include <asm/inat.h> + #include <asm/insn.h> ++#ifdef __KERNEL__ ++#include <asm/pgtable_types.h> ++#else ++#define ktla_ktva(addr) addr ++#endif + + /* Verify next sizeof(t) bytes can be on the same instruction */ + #define validate_next(t, insn, n) \ +@@ -49,8 +54,8 @@ + void insn_init(struct insn *insn, const void *kaddr, int x86_64) + { + memset(insn, 0, sizeof(*insn)); +- insn->kaddr = kaddr; +- insn->next_byte = kaddr; ++ insn->kaddr = ktla_ktva(kaddr); ++ insn->next_byte = ktla_ktva(kaddr); + insn->x86_64 = x86_64 ? 1 : 0; + insn->opnd_bytes = 4; + if (x86_64) +diff --git a/arch/x86/lib/iomap_copy_64.S b/arch/x86/lib/iomap_copy_64.S +index 05a95e7..326f2fa 100644 +--- a/arch/x86/lib/iomap_copy_64.S ++++ b/arch/x86/lib/iomap_copy_64.S +@@ -17,6 +17,7 @@ + + #include <linux/linkage.h> + #include <asm/dwarf2.h> ++#include <asm/alternative-asm.h> + + /* + * override generic version in lib/iomap_copy.c +@@ -25,6 +26,7 @@ ENTRY(__iowrite32_copy) + CFI_STARTPROC + movl %edx,%ecx + rep movsd ++ pax_force_retaddr + ret + CFI_ENDPROC + ENDPROC(__iowrite32_copy) +diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S +index 1c273be..da9cc0e 100644 +--- a/arch/x86/lib/memcpy_64.S ++++ b/arch/x86/lib/memcpy_64.S +@@ -33,6 +33,7 @@ + rep movsq + movl %edx, %ecx + rep movsb ++ pax_force_retaddr + ret + .Lmemcpy_e: + .previous +@@ -49,6 +50,7 @@ + movq %rdi, %rax + movq %rdx, %rcx + rep movsb ++ pax_force_retaddr + ret + .Lmemcpy_e_e: + .previous +@@ -76,13 +78,13 @@ ENTRY(memcpy) + */ + movq 0*8(%rsi), %r8 + movq 1*8(%rsi), %r9 +- movq 2*8(%rsi), %r10 ++ movq 2*8(%rsi), %rcx + movq 3*8(%rsi), %r11 + leaq 4*8(%rsi), %rsi + + movq %r8, 0*8(%rdi) + movq %r9, 1*8(%rdi) +- movq %r10, 2*8(%rdi) ++ movq %rcx, 2*8(%rdi) + movq %r11, 3*8(%rdi) + leaq 4*8(%rdi), %rdi + jae .Lcopy_forward_loop +@@ -105,12 +107,12 @@ ENTRY(memcpy) + subq $0x20, %rdx + movq -1*8(%rsi), %r8 + movq -2*8(%rsi), %r9 +- movq -3*8(%rsi), %r10 ++ movq -3*8(%rsi), %rcx + movq -4*8(%rsi), %r11 + leaq -4*8(%rsi), %rsi + movq %r8, -1*8(%rdi) + movq %r9, -2*8(%rdi) +- movq %r10, -3*8(%rdi) ++ movq %rcx, -3*8(%rdi) + movq %r11, -4*8(%rdi) + leaq -4*8(%rdi), %rdi + jae .Lcopy_backward_loop +@@ -130,12 +132,13 @@ ENTRY(memcpy) + */ + movq 0*8(%rsi), %r8 + movq 1*8(%rsi), %r9 +- movq -2*8(%rsi, %rdx), %r10 ++ movq -2*8(%rsi, %rdx), %rcx + movq -1*8(%rsi, %rdx), %r11 + movq %r8, 0*8(%rdi) + movq %r9, 1*8(%rdi) +- movq %r10, -2*8(%rdi, %rdx) ++ movq %rcx, -2*8(%rdi, %rdx) + movq %r11, -1*8(%rdi, %rdx) ++ pax_force_retaddr + retq + .p2align 4 + .Lless_16bytes: +@@ -148,6 +151,7 @@ ENTRY(memcpy) + movq -1*8(%rsi, %rdx), %r9 + movq %r8, 0*8(%rdi) + movq %r9, -1*8(%rdi, %rdx) ++ pax_force_retaddr + retq + .p2align 4 + .Lless_8bytes: +@@ -161,6 +165,7 @@ ENTRY(memcpy) + movl -4(%rsi, %rdx), %r8d + movl %ecx, (%rdi) + movl %r8d, -4(%rdi, %rdx) ++ pax_force_retaddr + retq + .p2align 4 + .Lless_3bytes: +@@ -179,6 +184,7 @@ ENTRY(memcpy) + movb %cl, (%rdi) + + .Lend: ++ pax_force_retaddr + retq + CFI_ENDPROC + ENDPROC(memcpy) +diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S +index ee16461..c39c199 100644 +--- a/arch/x86/lib/memmove_64.S ++++ b/arch/x86/lib/memmove_64.S +@@ -61,13 +61,13 @@ ENTRY(memmove) + 5: + sub $0x20, %rdx + movq 0*8(%rsi), %r11 +- movq 1*8(%rsi), %r10 ++ movq 1*8(%rsi), %rcx + movq 2*8(%rsi), %r9 + movq 3*8(%rsi), %r8 + leaq 4*8(%rsi), %rsi + + movq %r11, 0*8(%rdi) +- movq %r10, 1*8(%rdi) ++ movq %rcx, 1*8(%rdi) + movq %r9, 2*8(%rdi) + movq %r8, 3*8(%rdi) + leaq 4*8(%rdi), %rdi +@@ -81,10 +81,10 @@ ENTRY(memmove) + 4: + movq %rdx, %rcx + movq -8(%rsi, %rdx), %r11 +- lea -8(%rdi, %rdx), %r10 ++ lea -8(%rdi, %rdx), %r9 + shrq $3, %rcx + rep movsq +- movq %r11, (%r10) ++ movq %r11, (%r9) + jmp 13f + .Lmemmove_end_forward: + +@@ -95,14 +95,14 @@ ENTRY(memmove) + 7: + movq %rdx, %rcx + movq (%rsi), %r11 +- movq %rdi, %r10 ++ movq %rdi, %r9 + leaq -8(%rsi, %rdx), %rsi + leaq -8(%rdi, %rdx), %rdi + shrq $3, %rcx + std + rep movsq + cld +- movq %r11, (%r10) ++ movq %r11, (%r9) + jmp 13f + + /* +@@ -127,13 +127,13 @@ ENTRY(memmove) + 8: + subq $0x20, %rdx + movq -1*8(%rsi), %r11 +- movq -2*8(%rsi), %r10 ++ movq -2*8(%rsi), %rcx + movq -3*8(%rsi), %r9 + movq -4*8(%rsi), %r8 + leaq -4*8(%rsi), %rsi + + movq %r11, -1*8(%rdi) +- movq %r10, -2*8(%rdi) ++ movq %rcx, -2*8(%rdi) + movq %r9, -3*8(%rdi) + movq %r8, -4*8(%rdi) + leaq -4*8(%rdi), %rdi +@@ -151,11 +151,11 @@ ENTRY(memmove) + * Move data from 16 bytes to 31 bytes. + */ + movq 0*8(%rsi), %r11 +- movq 1*8(%rsi), %r10 ++ movq 1*8(%rsi), %rcx + movq -2*8(%rsi, %rdx), %r9 + movq -1*8(%rsi, %rdx), %r8 + movq %r11, 0*8(%rdi) +- movq %r10, 1*8(%rdi) ++ movq %rcx, 1*8(%rdi) + movq %r9, -2*8(%rdi, %rdx) + movq %r8, -1*8(%rdi, %rdx) + jmp 13f +@@ -167,9 +167,9 @@ ENTRY(memmove) + * Move data from 8 bytes to 15 bytes. + */ + movq 0*8(%rsi), %r11 +- movq -1*8(%rsi, %rdx), %r10 ++ movq -1*8(%rsi, %rdx), %r9 + movq %r11, 0*8(%rdi) +- movq %r10, -1*8(%rdi, %rdx) ++ movq %r9, -1*8(%rdi, %rdx) + jmp 13f + 10: + cmpq $4, %rdx +@@ -178,9 +178,9 @@ ENTRY(memmove) + * Move data from 4 bytes to 7 bytes. + */ + movl (%rsi), %r11d +- movl -4(%rsi, %rdx), %r10d ++ movl -4(%rsi, %rdx), %r9d + movl %r11d, (%rdi) +- movl %r10d, -4(%rdi, %rdx) ++ movl %r9d, -4(%rdi, %rdx) + jmp 13f + 11: + cmp $2, %rdx +@@ -189,9 +189,9 @@ ENTRY(memmove) + * Move data from 2 bytes to 3 bytes. + */ + movw (%rsi), %r11w +- movw -2(%rsi, %rdx), %r10w ++ movw -2(%rsi, %rdx), %r9w + movw %r11w, (%rdi) +- movw %r10w, -2(%rdi, %rdx) ++ movw %r9w, -2(%rdi, %rdx) + jmp 13f + 12: + cmp $1, %rdx +@@ -202,6 +202,7 @@ ENTRY(memmove) + movb (%rsi), %r11b + movb %r11b, (%rdi) + 13: ++ pax_force_retaddr + retq + CFI_ENDPROC + +@@ -210,6 +211,7 @@ ENTRY(memmove) + /* Forward moving data. */ + movq %rdx, %rcx + rep movsb ++ pax_force_retaddr + retq + .Lmemmove_end_forward_efs: + .previous +diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S +index 2dcb380..963660a 100644 +--- a/arch/x86/lib/memset_64.S ++++ b/arch/x86/lib/memset_64.S +@@ -30,6 +30,7 @@ + movl %edx,%ecx + rep stosb + movq %r9,%rax ++ pax_force_retaddr + ret + .Lmemset_e: + .previous +@@ -52,6 +53,7 @@ + movq %rdx,%rcx + rep stosb + movq %r9,%rax ++ pax_force_retaddr + ret + .Lmemset_e_e: + .previous +@@ -59,7 +61,7 @@ + ENTRY(memset) + ENTRY(__memset) + CFI_STARTPROC +- movq %rdi,%r10 ++ movq %rdi,%r11 + + /* expand byte value */ + movzbl %sil,%ecx +@@ -117,7 +119,8 @@ ENTRY(__memset) + jnz .Lloop_1 + + .Lende: +- movq %r10,%rax ++ movq %r11,%rax ++ pax_force_retaddr + ret + + CFI_RESTORE_STATE +diff --git a/arch/x86/lib/mmx_32.c b/arch/x86/lib/mmx_32.c +index c9f2d9b..e7fd2c0 100644 +--- a/arch/x86/lib/mmx_32.c ++++ b/arch/x86/lib/mmx_32.c +@@ -29,6 +29,7 @@ void *_mmx_memcpy(void *to, const void *from, size_t len) + { + void *p; + int i; ++ unsigned long cr0; + + if (unlikely(in_interrupt())) + return __memcpy(to, from, len); +@@ -39,44 +40,72 @@ void *_mmx_memcpy(void *to, const void *from, size_t len) + kernel_fpu_begin(); + + __asm__ __volatile__ ( +- "1: prefetch (%0)\n" /* This set is 28 bytes */ +- " prefetch 64(%0)\n" +- " prefetch 128(%0)\n" +- " prefetch 192(%0)\n" +- " prefetch 256(%0)\n" ++ "1: prefetch (%1)\n" /* This set is 28 bytes */ ++ " prefetch 64(%1)\n" ++ " prefetch 128(%1)\n" ++ " prefetch 192(%1)\n" ++ " prefetch 256(%1)\n" + "2: \n" + ".section .fixup, \"ax\"\n" +- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ ++ "3: \n" ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ " movl %%cr0, %0\n" ++ " movl %0, %%eax\n" ++ " andl $0xFFFEFFFF, %%eax\n" ++ " movl %%eax, %%cr0\n" ++#endif ++ ++ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ " movl %0, %%cr0\n" ++#endif ++ + " jmp 2b\n" + ".previous\n" + _ASM_EXTABLE(1b, 3b) +- : : "r" (from)); ++ : "=&r" (cr0) : "r" (from) : "ax"); + + for ( ; i > 5; i--) { + __asm__ __volatile__ ( +- "1: prefetch 320(%0)\n" +- "2: movq (%0), %%mm0\n" +- " movq 8(%0), %%mm1\n" +- " movq 16(%0), %%mm2\n" +- " movq 24(%0), %%mm3\n" +- " movq %%mm0, (%1)\n" +- " movq %%mm1, 8(%1)\n" +- " movq %%mm2, 16(%1)\n" +- " movq %%mm3, 24(%1)\n" +- " movq 32(%0), %%mm0\n" +- " movq 40(%0), %%mm1\n" +- " movq 48(%0), %%mm2\n" +- " movq 56(%0), %%mm3\n" +- " movq %%mm0, 32(%1)\n" +- " movq %%mm1, 40(%1)\n" +- " movq %%mm2, 48(%1)\n" +- " movq %%mm3, 56(%1)\n" ++ "1: prefetch 320(%1)\n" ++ "2: movq (%1), %%mm0\n" ++ " movq 8(%1), %%mm1\n" ++ " movq 16(%1), %%mm2\n" ++ " movq 24(%1), %%mm3\n" ++ " movq %%mm0, (%2)\n" ++ " movq %%mm1, 8(%2)\n" ++ " movq %%mm2, 16(%2)\n" ++ " movq %%mm3, 24(%2)\n" ++ " movq 32(%1), %%mm0\n" ++ " movq 40(%1), %%mm1\n" ++ " movq 48(%1), %%mm2\n" ++ " movq 56(%1), %%mm3\n" ++ " movq %%mm0, 32(%2)\n" ++ " movq %%mm1, 40(%2)\n" ++ " movq %%mm2, 48(%2)\n" ++ " movq %%mm3, 56(%2)\n" + ".section .fixup, \"ax\"\n" +- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */ ++ "3:\n" ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ " movl %%cr0, %0\n" ++ " movl %0, %%eax\n" ++ " andl $0xFFFEFFFF, %%eax\n" ++ " movl %%eax, %%cr0\n" ++#endif ++ ++ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */ ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ " movl %0, %%cr0\n" ++#endif ++ + " jmp 2b\n" + ".previous\n" + _ASM_EXTABLE(1b, 3b) +- : : "r" (from), "r" (to) : "memory"); ++ : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax"); + + from += 64; + to += 64; +@@ -158,6 +187,7 @@ static void fast_clear_page(void *page) + static void fast_copy_page(void *to, void *from) + { + int i; ++ unsigned long cr0; + + kernel_fpu_begin(); + +@@ -166,42 +196,70 @@ static void fast_copy_page(void *to, void *from) + * but that is for later. -AV + */ + __asm__ __volatile__( +- "1: prefetch (%0)\n" +- " prefetch 64(%0)\n" +- " prefetch 128(%0)\n" +- " prefetch 192(%0)\n" +- " prefetch 256(%0)\n" ++ "1: prefetch (%1)\n" ++ " prefetch 64(%1)\n" ++ " prefetch 128(%1)\n" ++ " prefetch 192(%1)\n" ++ " prefetch 256(%1)\n" + "2: \n" + ".section .fixup, \"ax\"\n" +- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ ++ "3: \n" ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ " movl %%cr0, %0\n" ++ " movl %0, %%eax\n" ++ " andl $0xFFFEFFFF, %%eax\n" ++ " movl %%eax, %%cr0\n" ++#endif ++ ++ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ " movl %0, %%cr0\n" ++#endif ++ + " jmp 2b\n" + ".previous\n" +- _ASM_EXTABLE(1b, 3b) : : "r" (from)); ++ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax"); + + for (i = 0; i < (4096-320)/64; i++) { + __asm__ __volatile__ ( +- "1: prefetch 320(%0)\n" +- "2: movq (%0), %%mm0\n" +- " movntq %%mm0, (%1)\n" +- " movq 8(%0), %%mm1\n" +- " movntq %%mm1, 8(%1)\n" +- " movq 16(%0), %%mm2\n" +- " movntq %%mm2, 16(%1)\n" +- " movq 24(%0), %%mm3\n" +- " movntq %%mm3, 24(%1)\n" +- " movq 32(%0), %%mm4\n" +- " movntq %%mm4, 32(%1)\n" +- " movq 40(%0), %%mm5\n" +- " movntq %%mm5, 40(%1)\n" +- " movq 48(%0), %%mm6\n" +- " movntq %%mm6, 48(%1)\n" +- " movq 56(%0), %%mm7\n" +- " movntq %%mm7, 56(%1)\n" ++ "1: prefetch 320(%1)\n" ++ "2: movq (%1), %%mm0\n" ++ " movntq %%mm0, (%2)\n" ++ " movq 8(%1), %%mm1\n" ++ " movntq %%mm1, 8(%2)\n" ++ " movq 16(%1), %%mm2\n" ++ " movntq %%mm2, 16(%2)\n" ++ " movq 24(%1), %%mm3\n" ++ " movntq %%mm3, 24(%2)\n" ++ " movq 32(%1), %%mm4\n" ++ " movntq %%mm4, 32(%2)\n" ++ " movq 40(%1), %%mm5\n" ++ " movntq %%mm5, 40(%2)\n" ++ " movq 48(%1), %%mm6\n" ++ " movntq %%mm6, 48(%2)\n" ++ " movq 56(%1), %%mm7\n" ++ " movntq %%mm7, 56(%2)\n" + ".section .fixup, \"ax\"\n" +- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */ ++ "3:\n" ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ " movl %%cr0, %0\n" ++ " movl %0, %%eax\n" ++ " andl $0xFFFEFFFF, %%eax\n" ++ " movl %%eax, %%cr0\n" ++#endif ++ ++ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */ ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ " movl %0, %%cr0\n" ++#endif ++ + " jmp 2b\n" + ".previous\n" +- _ASM_EXTABLE(1b, 3b) : : "r" (from), "r" (to) : "memory"); ++ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax"); + + from += 64; + to += 64; +@@ -280,47 +338,76 @@ static void fast_clear_page(void *page) + static void fast_copy_page(void *to, void *from) + { + int i; ++ unsigned long cr0; + + kernel_fpu_begin(); + + __asm__ __volatile__ ( +- "1: prefetch (%0)\n" +- " prefetch 64(%0)\n" +- " prefetch 128(%0)\n" +- " prefetch 192(%0)\n" +- " prefetch 256(%0)\n" ++ "1: prefetch (%1)\n" ++ " prefetch 64(%1)\n" ++ " prefetch 128(%1)\n" ++ " prefetch 192(%1)\n" ++ " prefetch 256(%1)\n" + "2: \n" + ".section .fixup, \"ax\"\n" +- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ ++ "3: \n" ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ " movl %%cr0, %0\n" ++ " movl %0, %%eax\n" ++ " andl $0xFFFEFFFF, %%eax\n" ++ " movl %%eax, %%cr0\n" ++#endif ++ ++ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ " movl %0, %%cr0\n" ++#endif ++ + " jmp 2b\n" + ".previous\n" +- _ASM_EXTABLE(1b, 3b) : : "r" (from)); ++ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax"); + + for (i = 0; i < 4096/64; i++) { + __asm__ __volatile__ ( +- "1: prefetch 320(%0)\n" +- "2: movq (%0), %%mm0\n" +- " movq 8(%0), %%mm1\n" +- " movq 16(%0), %%mm2\n" +- " movq 24(%0), %%mm3\n" +- " movq %%mm0, (%1)\n" +- " movq %%mm1, 8(%1)\n" +- " movq %%mm2, 16(%1)\n" +- " movq %%mm3, 24(%1)\n" +- " movq 32(%0), %%mm0\n" +- " movq 40(%0), %%mm1\n" +- " movq 48(%0), %%mm2\n" +- " movq 56(%0), %%mm3\n" +- " movq %%mm0, 32(%1)\n" +- " movq %%mm1, 40(%1)\n" +- " movq %%mm2, 48(%1)\n" +- " movq %%mm3, 56(%1)\n" ++ "1: prefetch 320(%1)\n" ++ "2: movq (%1), %%mm0\n" ++ " movq 8(%1), %%mm1\n" ++ " movq 16(%1), %%mm2\n" ++ " movq 24(%1), %%mm3\n" ++ " movq %%mm0, (%2)\n" ++ " movq %%mm1, 8(%2)\n" ++ " movq %%mm2, 16(%2)\n" ++ " movq %%mm3, 24(%2)\n" ++ " movq 32(%1), %%mm0\n" ++ " movq 40(%1), %%mm1\n" ++ " movq 48(%1), %%mm2\n" ++ " movq 56(%1), %%mm3\n" ++ " movq %%mm0, 32(%2)\n" ++ " movq %%mm1, 40(%2)\n" ++ " movq %%mm2, 48(%2)\n" ++ " movq %%mm3, 56(%2)\n" + ".section .fixup, \"ax\"\n" +- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */ ++ "3:\n" ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ " movl %%cr0, %0\n" ++ " movl %0, %%eax\n" ++ " andl $0xFFFEFFFF, %%eax\n" ++ " movl %%eax, %%cr0\n" ++#endif ++ ++ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */ ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ " movl %0, %%cr0\n" ++#endif ++ + " jmp 2b\n" + ".previous\n" + _ASM_EXTABLE(1b, 3b) +- : : "r" (from), "r" (to) : "memory"); ++ : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax"); + + from += 64; + to += 64; +diff --git a/arch/x86/lib/msr-reg.S b/arch/x86/lib/msr-reg.S +index 69fa106..adda88b 100644 +--- a/arch/x86/lib/msr-reg.S ++++ b/arch/x86/lib/msr-reg.S +@@ -3,6 +3,7 @@ + #include <asm/dwarf2.h> + #include <asm/asm.h> + #include <asm/msr.h> ++#include <asm/alternative-asm.h> + + #ifdef CONFIG_X86_64 + /* +@@ -16,7 +17,7 @@ ENTRY(native_\op\()_safe_regs) + CFI_STARTPROC + pushq_cfi %rbx + pushq_cfi %rbp +- movq %rdi, %r10 /* Save pointer */ ++ movq %rdi, %r9 /* Save pointer */ + xorl %r11d, %r11d /* Return value */ + movl (%rdi), %eax + movl 4(%rdi), %ecx +@@ -27,16 +28,17 @@ ENTRY(native_\op\()_safe_regs) + movl 28(%rdi), %edi + CFI_REMEMBER_STATE + 1: \op +-2: movl %eax, (%r10) ++2: movl %eax, (%r9) + movl %r11d, %eax /* Return value */ +- movl %ecx, 4(%r10) +- movl %edx, 8(%r10) +- movl %ebx, 12(%r10) +- movl %ebp, 20(%r10) +- movl %esi, 24(%r10) +- movl %edi, 28(%r10) ++ movl %ecx, 4(%r9) ++ movl %edx, 8(%r9) ++ movl %ebx, 12(%r9) ++ movl %ebp, 20(%r9) ++ movl %esi, 24(%r9) ++ movl %edi, 28(%r9) + popq_cfi %rbp + popq_cfi %rbx ++ pax_force_retaddr + ret + 3: + CFI_RESTORE_STATE +diff --git a/arch/x86/lib/putuser.S b/arch/x86/lib/putuser.S +index 36b0d15..d381858 100644 +--- a/arch/x86/lib/putuser.S ++++ b/arch/x86/lib/putuser.S +@@ -15,7 +15,9 @@ + #include <asm/thread_info.h> + #include <asm/errno.h> + #include <asm/asm.h> +- ++#include <asm/segment.h> ++#include <asm/pgtable.h> ++#include <asm/alternative-asm.h> + + /* + * __put_user_X +@@ -29,52 +31,119 @@ + * as they get called from within inline assembly. + */ + +-#define ENTER CFI_STARTPROC ; \ +- GET_THREAD_INFO(%_ASM_BX) +-#define EXIT ret ; \ ++#define ENTER CFI_STARTPROC ++#define EXIT pax_force_retaddr; ret ; \ + CFI_ENDPROC + ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++#define _DEST %_ASM_CX,%_ASM_BX ++#else ++#define _DEST %_ASM_CX ++#endif ++ ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF) ++#define __copyuser_seg gs; ++#else ++#define __copyuser_seg ++#endif ++ + .text + ENTRY(__put_user_1) + ENTER ++ ++#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) ++ GET_THREAD_INFO(%_ASM_BX) + cmp TI_addr_limit(%_ASM_BX),%_ASM_CX + jae bad_put_user +-1: movb %al,(%_ASM_CX) ++ ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++ mov $PAX_USER_SHADOW_BASE,%_ASM_BX ++ cmp %_ASM_BX,%_ASM_CX ++ jb 1234f ++ xor %ebx,%ebx ++1234: ++#endif ++ ++#endif ++ ++1: __copyuser_seg movb %al,(_DEST) + xor %eax,%eax + EXIT + ENDPROC(__put_user_1) + + ENTRY(__put_user_2) + ENTER ++ ++#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) ++ GET_THREAD_INFO(%_ASM_BX) + mov TI_addr_limit(%_ASM_BX),%_ASM_BX + sub $1,%_ASM_BX + cmp %_ASM_BX,%_ASM_CX + jae bad_put_user +-2: movw %ax,(%_ASM_CX) ++ ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++ mov $PAX_USER_SHADOW_BASE,%_ASM_BX ++ cmp %_ASM_BX,%_ASM_CX ++ jb 1234f ++ xor %ebx,%ebx ++1234: ++#endif ++ ++#endif ++ ++2: __copyuser_seg movw %ax,(_DEST) + xor %eax,%eax + EXIT + ENDPROC(__put_user_2) + + ENTRY(__put_user_4) + ENTER ++ ++#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) ++ GET_THREAD_INFO(%_ASM_BX) + mov TI_addr_limit(%_ASM_BX),%_ASM_BX + sub $3,%_ASM_BX + cmp %_ASM_BX,%_ASM_CX + jae bad_put_user +-3: movl %eax,(%_ASM_CX) ++ ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++ mov $PAX_USER_SHADOW_BASE,%_ASM_BX ++ cmp %_ASM_BX,%_ASM_CX ++ jb 1234f ++ xor %ebx,%ebx ++1234: ++#endif ++ ++#endif ++ ++3: __copyuser_seg movl %eax,(_DEST) + xor %eax,%eax + EXIT + ENDPROC(__put_user_4) + + ENTRY(__put_user_8) + ENTER ++ ++#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) ++ GET_THREAD_INFO(%_ASM_BX) + mov TI_addr_limit(%_ASM_BX),%_ASM_BX + sub $7,%_ASM_BX + cmp %_ASM_BX,%_ASM_CX + jae bad_put_user +-4: mov %_ASM_AX,(%_ASM_CX) ++ ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++ mov $PAX_USER_SHADOW_BASE,%_ASM_BX ++ cmp %_ASM_BX,%_ASM_CX ++ jb 1234f ++ xor %ebx,%ebx ++1234: ++#endif ++ ++#endif ++ ++4: __copyuser_seg mov %_ASM_AX,(_DEST) + #ifdef CONFIG_X86_32 +-5: movl %edx,4(%_ASM_CX) ++5: __copyuser_seg movl %edx,4(_DEST) + #endif + xor %eax,%eax + EXIT +diff --git a/arch/x86/lib/rwlock.S b/arch/x86/lib/rwlock.S +index 1cad221..de671ee 100644 +--- a/arch/x86/lib/rwlock.S ++++ b/arch/x86/lib/rwlock.S +@@ -16,13 +16,34 @@ ENTRY(__write_lock_failed) + FRAME + 0: LOCK_PREFIX + WRITE_LOCK_ADD($RW_LOCK_BIAS) (%__lock_ptr) ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ jno 1234f ++ LOCK_PREFIX ++ WRITE_LOCK_SUB($RW_LOCK_BIAS) (%__lock_ptr) ++ int $4 ++1234: ++ _ASM_EXTABLE(1234b, 1234b) ++#endif ++ + 1: rep; nop + cmpl $WRITE_LOCK_CMP, (%__lock_ptr) + jne 1b + LOCK_PREFIX + WRITE_LOCK_SUB($RW_LOCK_BIAS) (%__lock_ptr) ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ jno 1234f ++ LOCK_PREFIX ++ WRITE_LOCK_ADD($RW_LOCK_BIAS) (%__lock_ptr) ++ int $4 ++1234: ++ _ASM_EXTABLE(1234b, 1234b) ++#endif ++ + jnz 0b + ENDFRAME ++ pax_force_retaddr + ret + CFI_ENDPROC + END(__write_lock_failed) +@@ -32,13 +53,34 @@ ENTRY(__read_lock_failed) + FRAME + 0: LOCK_PREFIX + READ_LOCK_SIZE(inc) (%__lock_ptr) ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ jno 1234f ++ LOCK_PREFIX ++ READ_LOCK_SIZE(dec) (%__lock_ptr) ++ int $4 ++1234: ++ _ASM_EXTABLE(1234b, 1234b) ++#endif ++ + 1: rep; nop + READ_LOCK_SIZE(cmp) $1, (%__lock_ptr) + js 1b + LOCK_PREFIX + READ_LOCK_SIZE(dec) (%__lock_ptr) ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ jno 1234f ++ LOCK_PREFIX ++ READ_LOCK_SIZE(inc) (%__lock_ptr) ++ int $4 ++1234: ++ _ASM_EXTABLE(1234b, 1234b) ++#endif ++ + js 0b + ENDFRAME ++ pax_force_retaddr + ret + CFI_ENDPROC + END(__read_lock_failed) +diff --git a/arch/x86/lib/rwsem.S b/arch/x86/lib/rwsem.S +index 5dff5f0..cadebf4 100644 +--- a/arch/x86/lib/rwsem.S ++++ b/arch/x86/lib/rwsem.S +@@ -94,6 +94,7 @@ ENTRY(call_rwsem_down_read_failed) + __ASM_SIZE(pop,_cfi) %__ASM_REG(dx) + CFI_RESTORE __ASM_REG(dx) + restore_common_regs ++ pax_force_retaddr + ret + CFI_ENDPROC + ENDPROC(call_rwsem_down_read_failed) +@@ -104,6 +105,7 @@ ENTRY(call_rwsem_down_write_failed) + movq %rax,%rdi + call rwsem_down_write_failed + restore_common_regs ++ pax_force_retaddr + ret + CFI_ENDPROC + ENDPROC(call_rwsem_down_write_failed) +@@ -117,7 +119,8 @@ ENTRY(call_rwsem_wake) + movq %rax,%rdi + call rwsem_wake + restore_common_regs +-1: ret ++1: pax_force_retaddr ++ ret + CFI_ENDPROC + ENDPROC(call_rwsem_wake) + +@@ -131,6 +134,7 @@ ENTRY(call_rwsem_downgrade_wake) + __ASM_SIZE(pop,_cfi) %__ASM_REG(dx) + CFI_RESTORE __ASM_REG(dx) + restore_common_regs ++ pax_force_retaddr + ret + CFI_ENDPROC + ENDPROC(call_rwsem_downgrade_wake) +diff --git a/arch/x86/lib/thunk_64.S b/arch/x86/lib/thunk_64.S +index a63efd6..ccecad8 100644 +--- a/arch/x86/lib/thunk_64.S ++++ b/arch/x86/lib/thunk_64.S +@@ -8,6 +8,7 @@ + #include <linux/linkage.h> + #include <asm/dwarf2.h> + #include <asm/calling.h> ++#include <asm/alternative-asm.h> + + /* rdi: arg1 ... normal C conventions. rax is saved/restored. */ + .macro THUNK name, func, put_ret_addr_in_rdi=0 +@@ -41,5 +42,6 @@ + SAVE_ARGS + restore: + RESTORE_ARGS ++ pax_force_retaddr + ret + CFI_ENDPROC +diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c +index ef2a6a5..3b28862 100644 +--- a/arch/x86/lib/usercopy_32.c ++++ b/arch/x86/lib/usercopy_32.c +@@ -41,10 +41,12 @@ do { \ + int __d0; \ + might_fault(); \ + __asm__ __volatile__( \ ++ __COPYUSER_SET_ES \ + "0: rep; stosl\n" \ + " movl %2,%0\n" \ + "1: rep; stosb\n" \ + "2:\n" \ ++ __COPYUSER_RESTORE_ES \ + ".section .fixup,\"ax\"\n" \ + "3: lea 0(%2,%0,4),%0\n" \ + " jmp 2b\n" \ +@@ -113,6 +115,7 @@ long strnlen_user(const char __user *s, long n) + might_fault(); + + __asm__ __volatile__( ++ __COPYUSER_SET_ES + " testl %0, %0\n" + " jz 3f\n" + " andl %0,%%ecx\n" +@@ -121,6 +124,7 @@ long strnlen_user(const char __user *s, long n) + " subl %%ecx,%0\n" + " addl %0,%%eax\n" + "1:\n" ++ __COPYUSER_RESTORE_ES + ".section .fixup,\"ax\"\n" + "2: xorl %%eax,%%eax\n" + " jmp 1b\n" +@@ -140,7 +144,7 @@ EXPORT_SYMBOL(strnlen_user); + + #ifdef CONFIG_X86_INTEL_USERCOPY + static unsigned long +-__copy_user_intel(void __user *to, const void *from, unsigned long size) ++__generic_copy_to_user_intel(void __user *to, const void *from, unsigned long size) + { + int d0, d1; + __asm__ __volatile__( +@@ -152,36 +156,36 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size) + " .align 2,0x90\n" + "3: movl 0(%4), %%eax\n" + "4: movl 4(%4), %%edx\n" +- "5: movl %%eax, 0(%3)\n" +- "6: movl %%edx, 4(%3)\n" ++ "5: "__copyuser_seg" movl %%eax, 0(%3)\n" ++ "6: "__copyuser_seg" movl %%edx, 4(%3)\n" + "7: movl 8(%4), %%eax\n" + "8: movl 12(%4),%%edx\n" +- "9: movl %%eax, 8(%3)\n" +- "10: movl %%edx, 12(%3)\n" ++ "9: "__copyuser_seg" movl %%eax, 8(%3)\n" ++ "10: "__copyuser_seg" movl %%edx, 12(%3)\n" + "11: movl 16(%4), %%eax\n" + "12: movl 20(%4), %%edx\n" +- "13: movl %%eax, 16(%3)\n" +- "14: movl %%edx, 20(%3)\n" ++ "13: "__copyuser_seg" movl %%eax, 16(%3)\n" ++ "14: "__copyuser_seg" movl %%edx, 20(%3)\n" + "15: movl 24(%4), %%eax\n" + "16: movl 28(%4), %%edx\n" +- "17: movl %%eax, 24(%3)\n" +- "18: movl %%edx, 28(%3)\n" ++ "17: "__copyuser_seg" movl %%eax, 24(%3)\n" ++ "18: "__copyuser_seg" movl %%edx, 28(%3)\n" + "19: movl 32(%4), %%eax\n" + "20: movl 36(%4), %%edx\n" +- "21: movl %%eax, 32(%3)\n" +- "22: movl %%edx, 36(%3)\n" ++ "21: "__copyuser_seg" movl %%eax, 32(%3)\n" ++ "22: "__copyuser_seg" movl %%edx, 36(%3)\n" + "23: movl 40(%4), %%eax\n" + "24: movl 44(%4), %%edx\n" +- "25: movl %%eax, 40(%3)\n" +- "26: movl %%edx, 44(%3)\n" ++ "25: "__copyuser_seg" movl %%eax, 40(%3)\n" ++ "26: "__copyuser_seg" movl %%edx, 44(%3)\n" + "27: movl 48(%4), %%eax\n" + "28: movl 52(%4), %%edx\n" +- "29: movl %%eax, 48(%3)\n" +- "30: movl %%edx, 52(%3)\n" ++ "29: "__copyuser_seg" movl %%eax, 48(%3)\n" ++ "30: "__copyuser_seg" movl %%edx, 52(%3)\n" + "31: movl 56(%4), %%eax\n" + "32: movl 60(%4), %%edx\n" +- "33: movl %%eax, 56(%3)\n" +- "34: movl %%edx, 60(%3)\n" ++ "33: "__copyuser_seg" movl %%eax, 56(%3)\n" ++ "34: "__copyuser_seg" movl %%edx, 60(%3)\n" + " addl $-64, %0\n" + " addl $64, %4\n" + " addl $64, %3\n" +@@ -191,10 +195,12 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size) + " shrl $2, %0\n" + " andl $3, %%eax\n" + " cld\n" ++ __COPYUSER_SET_ES + "99: rep; movsl\n" + "36: movl %%eax, %0\n" + "37: rep; movsb\n" + "100:\n" ++ __COPYUSER_RESTORE_ES + ".section .fixup,\"ax\"\n" + "101: lea 0(%%eax,%0,4),%0\n" + " jmp 100b\n" +@@ -247,46 +253,155 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size) + } + + static unsigned long ++__generic_copy_from_user_intel(void *to, const void __user *from, unsigned long size) ++{ ++ int d0, d1; ++ __asm__ __volatile__( ++ " .align 2,0x90\n" ++ "1: "__copyuser_seg" movl 32(%4), %%eax\n" ++ " cmpl $67, %0\n" ++ " jbe 3f\n" ++ "2: "__copyuser_seg" movl 64(%4), %%eax\n" ++ " .align 2,0x90\n" ++ "3: "__copyuser_seg" movl 0(%4), %%eax\n" ++ "4: "__copyuser_seg" movl 4(%4), %%edx\n" ++ "5: movl %%eax, 0(%3)\n" ++ "6: movl %%edx, 4(%3)\n" ++ "7: "__copyuser_seg" movl 8(%4), %%eax\n" ++ "8: "__copyuser_seg" movl 12(%4),%%edx\n" ++ "9: movl %%eax, 8(%3)\n" ++ "10: movl %%edx, 12(%3)\n" ++ "11: "__copyuser_seg" movl 16(%4), %%eax\n" ++ "12: "__copyuser_seg" movl 20(%4), %%edx\n" ++ "13: movl %%eax, 16(%3)\n" ++ "14: movl %%edx, 20(%3)\n" ++ "15: "__copyuser_seg" movl 24(%4), %%eax\n" ++ "16: "__copyuser_seg" movl 28(%4), %%edx\n" ++ "17: movl %%eax, 24(%3)\n" ++ "18: movl %%edx, 28(%3)\n" ++ "19: "__copyuser_seg" movl 32(%4), %%eax\n" ++ "20: "__copyuser_seg" movl 36(%4), %%edx\n" ++ "21: movl %%eax, 32(%3)\n" ++ "22: movl %%edx, 36(%3)\n" ++ "23: "__copyuser_seg" movl 40(%4), %%eax\n" ++ "24: "__copyuser_seg" movl 44(%4), %%edx\n" ++ "25: movl %%eax, 40(%3)\n" ++ "26: movl %%edx, 44(%3)\n" ++ "27: "__copyuser_seg" movl 48(%4), %%eax\n" ++ "28: "__copyuser_seg" movl 52(%4), %%edx\n" ++ "29: movl %%eax, 48(%3)\n" ++ "30: movl %%edx, 52(%3)\n" ++ "31: "__copyuser_seg" movl 56(%4), %%eax\n" ++ "32: "__copyuser_seg" movl 60(%4), %%edx\n" ++ "33: movl %%eax, 56(%3)\n" ++ "34: movl %%edx, 60(%3)\n" ++ " addl $-64, %0\n" ++ " addl $64, %4\n" ++ " addl $64, %3\n" ++ " cmpl $63, %0\n" ++ " ja 1b\n" ++ "35: movl %0, %%eax\n" ++ " shrl $2, %0\n" ++ " andl $3, %%eax\n" ++ " cld\n" ++ "99: rep; "__copyuser_seg" movsl\n" ++ "36: movl %%eax, %0\n" ++ "37: rep; "__copyuser_seg" movsb\n" ++ "100:\n" ++ ".section .fixup,\"ax\"\n" ++ "101: lea 0(%%eax,%0,4),%0\n" ++ " jmp 100b\n" ++ ".previous\n" ++ ".section __ex_table,\"a\"\n" ++ " .align 4\n" ++ " .long 1b,100b\n" ++ " .long 2b,100b\n" ++ " .long 3b,100b\n" ++ " .long 4b,100b\n" ++ " .long 5b,100b\n" ++ " .long 6b,100b\n" ++ " .long 7b,100b\n" ++ " .long 8b,100b\n" ++ " .long 9b,100b\n" ++ " .long 10b,100b\n" ++ " .long 11b,100b\n" ++ " .long 12b,100b\n" ++ " .long 13b,100b\n" ++ " .long 14b,100b\n" ++ " .long 15b,100b\n" ++ " .long 16b,100b\n" ++ " .long 17b,100b\n" ++ " .long 18b,100b\n" ++ " .long 19b,100b\n" ++ " .long 20b,100b\n" ++ " .long 21b,100b\n" ++ " .long 22b,100b\n" ++ " .long 23b,100b\n" ++ " .long 24b,100b\n" ++ " .long 25b,100b\n" ++ " .long 26b,100b\n" ++ " .long 27b,100b\n" ++ " .long 28b,100b\n" ++ " .long 29b,100b\n" ++ " .long 30b,100b\n" ++ " .long 31b,100b\n" ++ " .long 32b,100b\n" ++ " .long 33b,100b\n" ++ " .long 34b,100b\n" ++ " .long 35b,100b\n" ++ " .long 36b,100b\n" ++ " .long 37b,100b\n" ++ " .long 99b,101b\n" ++ ".previous" ++ : "=&c"(size), "=&D" (d0), "=&S" (d1) ++ : "1"(to), "2"(from), "0"(size) ++ : "eax", "edx", "memory"); ++ return size; ++} ++ ++static unsigned long ++__copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size) __size_overflow(3); ++static unsigned long + __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size) + { + int d0, d1; + __asm__ __volatile__( + " .align 2,0x90\n" +- "0: movl 32(%4), %%eax\n" ++ "0: "__copyuser_seg" movl 32(%4), %%eax\n" + " cmpl $67, %0\n" + " jbe 2f\n" +- "1: movl 64(%4), %%eax\n" ++ "1: "__copyuser_seg" movl 64(%4), %%eax\n" + " .align 2,0x90\n" +- "2: movl 0(%4), %%eax\n" +- "21: movl 4(%4), %%edx\n" ++ "2: "__copyuser_seg" movl 0(%4), %%eax\n" ++ "21: "__copyuser_seg" movl 4(%4), %%edx\n" + " movl %%eax, 0(%3)\n" + " movl %%edx, 4(%3)\n" +- "3: movl 8(%4), %%eax\n" +- "31: movl 12(%4),%%edx\n" ++ "3: "__copyuser_seg" movl 8(%4), %%eax\n" ++ "31: "__copyuser_seg" movl 12(%4),%%edx\n" + " movl %%eax, 8(%3)\n" + " movl %%edx, 12(%3)\n" +- "4: movl 16(%4), %%eax\n" +- "41: movl 20(%4), %%edx\n" ++ "4: "__copyuser_seg" movl 16(%4), %%eax\n" ++ "41: "__copyuser_seg" movl 20(%4), %%edx\n" + " movl %%eax, 16(%3)\n" + " movl %%edx, 20(%3)\n" +- "10: movl 24(%4), %%eax\n" +- "51: movl 28(%4), %%edx\n" ++ "10: "__copyuser_seg" movl 24(%4), %%eax\n" ++ "51: "__copyuser_seg" movl 28(%4), %%edx\n" + " movl %%eax, 24(%3)\n" + " movl %%edx, 28(%3)\n" +- "11: movl 32(%4), %%eax\n" +- "61: movl 36(%4), %%edx\n" ++ "11: "__copyuser_seg" movl 32(%4), %%eax\n" ++ "61: "__copyuser_seg" movl 36(%4), %%edx\n" + " movl %%eax, 32(%3)\n" + " movl %%edx, 36(%3)\n" +- "12: movl 40(%4), %%eax\n" +- "71: movl 44(%4), %%edx\n" ++ "12: "__copyuser_seg" movl 40(%4), %%eax\n" ++ "71: "__copyuser_seg" movl 44(%4), %%edx\n" + " movl %%eax, 40(%3)\n" + " movl %%edx, 44(%3)\n" +- "13: movl 48(%4), %%eax\n" +- "81: movl 52(%4), %%edx\n" ++ "13: "__copyuser_seg" movl 48(%4), %%eax\n" ++ "81: "__copyuser_seg" movl 52(%4), %%edx\n" + " movl %%eax, 48(%3)\n" + " movl %%edx, 52(%3)\n" +- "14: movl 56(%4), %%eax\n" +- "91: movl 60(%4), %%edx\n" ++ "14: "__copyuser_seg" movl 56(%4), %%eax\n" ++ "91: "__copyuser_seg" movl 60(%4), %%edx\n" + " movl %%eax, 56(%3)\n" + " movl %%edx, 60(%3)\n" + " addl $-64, %0\n" +@@ -298,9 +413,9 @@ __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size) + " shrl $2, %0\n" + " andl $3, %%eax\n" + " cld\n" +- "6: rep; movsl\n" ++ "6: rep; "__copyuser_seg" movsl\n" + " movl %%eax,%0\n" +- "7: rep; movsb\n" ++ "7: rep; "__copyuser_seg" movsb\n" + "8:\n" + ".section .fixup,\"ax\"\n" + "9: lea 0(%%eax,%0,4),%0\n" +@@ -347,47 +462,49 @@ __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size) + */ + + static unsigned long __copy_user_zeroing_intel_nocache(void *to, ++ const void __user *from, unsigned long size) __size_overflow(3); ++static unsigned long __copy_user_zeroing_intel_nocache(void *to, + const void __user *from, unsigned long size) + { + int d0, d1; + + __asm__ __volatile__( + " .align 2,0x90\n" +- "0: movl 32(%4), %%eax\n" ++ "0: "__copyuser_seg" movl 32(%4), %%eax\n" + " cmpl $67, %0\n" + " jbe 2f\n" +- "1: movl 64(%4), %%eax\n" ++ "1: "__copyuser_seg" movl 64(%4), %%eax\n" + " .align 2,0x90\n" +- "2: movl 0(%4), %%eax\n" +- "21: movl 4(%4), %%edx\n" ++ "2: "__copyuser_seg" movl 0(%4), %%eax\n" ++ "21: "__copyuser_seg" movl 4(%4), %%edx\n" + " movnti %%eax, 0(%3)\n" + " movnti %%edx, 4(%3)\n" +- "3: movl 8(%4), %%eax\n" +- "31: movl 12(%4),%%edx\n" ++ "3: "__copyuser_seg" movl 8(%4), %%eax\n" ++ "31: "__copyuser_seg" movl 12(%4),%%edx\n" + " movnti %%eax, 8(%3)\n" + " movnti %%edx, 12(%3)\n" +- "4: movl 16(%4), %%eax\n" +- "41: movl 20(%4), %%edx\n" ++ "4: "__copyuser_seg" movl 16(%4), %%eax\n" ++ "41: "__copyuser_seg" movl 20(%4), %%edx\n" + " movnti %%eax, 16(%3)\n" + " movnti %%edx, 20(%3)\n" +- "10: movl 24(%4), %%eax\n" +- "51: movl 28(%4), %%edx\n" ++ "10: "__copyuser_seg" movl 24(%4), %%eax\n" ++ "51: "__copyuser_seg" movl 28(%4), %%edx\n" + " movnti %%eax, 24(%3)\n" + " movnti %%edx, 28(%3)\n" +- "11: movl 32(%4), %%eax\n" +- "61: movl 36(%4), %%edx\n" ++ "11: "__copyuser_seg" movl 32(%4), %%eax\n" ++ "61: "__copyuser_seg" movl 36(%4), %%edx\n" + " movnti %%eax, 32(%3)\n" + " movnti %%edx, 36(%3)\n" +- "12: movl 40(%4), %%eax\n" +- "71: movl 44(%4), %%edx\n" ++ "12: "__copyuser_seg" movl 40(%4), %%eax\n" ++ "71: "__copyuser_seg" movl 44(%4), %%edx\n" + " movnti %%eax, 40(%3)\n" + " movnti %%edx, 44(%3)\n" +- "13: movl 48(%4), %%eax\n" +- "81: movl 52(%4), %%edx\n" ++ "13: "__copyuser_seg" movl 48(%4), %%eax\n" ++ "81: "__copyuser_seg" movl 52(%4), %%edx\n" + " movnti %%eax, 48(%3)\n" + " movnti %%edx, 52(%3)\n" +- "14: movl 56(%4), %%eax\n" +- "91: movl 60(%4), %%edx\n" ++ "14: "__copyuser_seg" movl 56(%4), %%eax\n" ++ "91: "__copyuser_seg" movl 60(%4), %%edx\n" + " movnti %%eax, 56(%3)\n" + " movnti %%edx, 60(%3)\n" + " addl $-64, %0\n" +@@ -400,9 +517,9 @@ static unsigned long __copy_user_zeroing_intel_nocache(void *to, + " shrl $2, %0\n" + " andl $3, %%eax\n" + " cld\n" +- "6: rep; movsl\n" ++ "6: rep; "__copyuser_seg" movsl\n" + " movl %%eax,%0\n" +- "7: rep; movsb\n" ++ "7: rep; "__copyuser_seg" movsb\n" + "8:\n" + ".section .fixup,\"ax\"\n" + "9: lea 0(%%eax,%0,4),%0\n" +@@ -444,47 +561,49 @@ static unsigned long __copy_user_zeroing_intel_nocache(void *to, + } + + static unsigned long __copy_user_intel_nocache(void *to, ++ const void __user *from, unsigned long size) __size_overflow(3); ++static unsigned long __copy_user_intel_nocache(void *to, + const void __user *from, unsigned long size) + { + int d0, d1; + + __asm__ __volatile__( + " .align 2,0x90\n" +- "0: movl 32(%4), %%eax\n" ++ "0: "__copyuser_seg" movl 32(%4), %%eax\n" + " cmpl $67, %0\n" + " jbe 2f\n" +- "1: movl 64(%4), %%eax\n" ++ "1: "__copyuser_seg" movl 64(%4), %%eax\n" + " .align 2,0x90\n" +- "2: movl 0(%4), %%eax\n" +- "21: movl 4(%4), %%edx\n" ++ "2: "__copyuser_seg" movl 0(%4), %%eax\n" ++ "21: "__copyuser_seg" movl 4(%4), %%edx\n" + " movnti %%eax, 0(%3)\n" + " movnti %%edx, 4(%3)\n" +- "3: movl 8(%4), %%eax\n" +- "31: movl 12(%4),%%edx\n" ++ "3: "__copyuser_seg" movl 8(%4), %%eax\n" ++ "31: "__copyuser_seg" movl 12(%4),%%edx\n" + " movnti %%eax, 8(%3)\n" + " movnti %%edx, 12(%3)\n" +- "4: movl 16(%4), %%eax\n" +- "41: movl 20(%4), %%edx\n" ++ "4: "__copyuser_seg" movl 16(%4), %%eax\n" ++ "41: "__copyuser_seg" movl 20(%4), %%edx\n" + " movnti %%eax, 16(%3)\n" + " movnti %%edx, 20(%3)\n" +- "10: movl 24(%4), %%eax\n" +- "51: movl 28(%4), %%edx\n" ++ "10: "__copyuser_seg" movl 24(%4), %%eax\n" ++ "51: "__copyuser_seg" movl 28(%4), %%edx\n" + " movnti %%eax, 24(%3)\n" + " movnti %%edx, 28(%3)\n" +- "11: movl 32(%4), %%eax\n" +- "61: movl 36(%4), %%edx\n" ++ "11: "__copyuser_seg" movl 32(%4), %%eax\n" ++ "61: "__copyuser_seg" movl 36(%4), %%edx\n" + " movnti %%eax, 32(%3)\n" + " movnti %%edx, 36(%3)\n" +- "12: movl 40(%4), %%eax\n" +- "71: movl 44(%4), %%edx\n" ++ "12: "__copyuser_seg" movl 40(%4), %%eax\n" ++ "71: "__copyuser_seg" movl 44(%4), %%edx\n" + " movnti %%eax, 40(%3)\n" + " movnti %%edx, 44(%3)\n" +- "13: movl 48(%4), %%eax\n" +- "81: movl 52(%4), %%edx\n" ++ "13: "__copyuser_seg" movl 48(%4), %%eax\n" ++ "81: "__copyuser_seg" movl 52(%4), %%edx\n" + " movnti %%eax, 48(%3)\n" + " movnti %%edx, 52(%3)\n" +- "14: movl 56(%4), %%eax\n" +- "91: movl 60(%4), %%edx\n" ++ "14: "__copyuser_seg" movl 56(%4), %%eax\n" ++ "91: "__copyuser_seg" movl 60(%4), %%edx\n" + " movnti %%eax, 56(%3)\n" + " movnti %%edx, 60(%3)\n" + " addl $-64, %0\n" +@@ -497,9 +616,9 @@ static unsigned long __copy_user_intel_nocache(void *to, + " shrl $2, %0\n" + " andl $3, %%eax\n" + " cld\n" +- "6: rep; movsl\n" ++ "6: rep; "__copyuser_seg" movsl\n" + " movl %%eax,%0\n" +- "7: rep; movsb\n" ++ "7: rep; "__copyuser_seg" movsb\n" + "8:\n" + ".section .fixup,\"ax\"\n" + "9: lea 0(%%eax,%0,4),%0\n" +@@ -542,32 +661,36 @@ static unsigned long __copy_user_intel_nocache(void *to, + */ + unsigned long __copy_user_zeroing_intel(void *to, const void __user *from, + unsigned long size); +-unsigned long __copy_user_intel(void __user *to, const void *from, ++unsigned long __generic_copy_to_user_intel(void __user *to, const void *from, ++ unsigned long size); ++unsigned long __generic_copy_from_user_intel(void *to, const void __user *from, + unsigned long size); + unsigned long __copy_user_zeroing_intel_nocache(void *to, + const void __user *from, unsigned long size); + #endif /* CONFIG_X86_INTEL_USERCOPY */ + + /* Generic arbitrary sized copy. */ +-#define __copy_user(to, from, size) \ ++#define __copy_user(to, from, size, prefix, set, restore) \ + do { \ + int __d0, __d1, __d2; \ + __asm__ __volatile__( \ ++ set \ + " cmp $7,%0\n" \ + " jbe 1f\n" \ + " movl %1,%0\n" \ + " negl %0\n" \ + " andl $7,%0\n" \ + " subl %0,%3\n" \ +- "4: rep; movsb\n" \ ++ "4: rep; "prefix"movsb\n" \ + " movl %3,%0\n" \ + " shrl $2,%0\n" \ + " andl $3,%3\n" \ + " .align 2,0x90\n" \ +- "0: rep; movsl\n" \ ++ "0: rep; "prefix"movsl\n" \ + " movl %3,%0\n" \ +- "1: rep; movsb\n" \ ++ "1: rep; "prefix"movsb\n" \ + "2:\n" \ ++ restore \ + ".section .fixup,\"ax\"\n" \ + "5: addl %3,%0\n" \ + " jmp 2b\n" \ +@@ -595,14 +718,14 @@ do { \ + " negl %0\n" \ + " andl $7,%0\n" \ + " subl %0,%3\n" \ +- "4: rep; movsb\n" \ ++ "4: rep; "__copyuser_seg"movsb\n" \ + " movl %3,%0\n" \ + " shrl $2,%0\n" \ + " andl $3,%3\n" \ + " .align 2,0x90\n" \ +- "0: rep; movsl\n" \ ++ "0: rep; "__copyuser_seg"movsl\n" \ + " movl %3,%0\n" \ +- "1: rep; movsb\n" \ ++ "1: rep; "__copyuser_seg"movsb\n" \ + "2:\n" \ + ".section .fixup,\"ax\"\n" \ + "5: addl %3,%0\n" \ +@@ -688,9 +811,9 @@ survive: + } + #endif + if (movsl_is_ok(to, from, n)) +- __copy_user(to, from, n); ++ __copy_user(to, from, n, "", __COPYUSER_SET_ES, __COPYUSER_RESTORE_ES); + else +- n = __copy_user_intel(to, from, n); ++ n = __generic_copy_to_user_intel(to, from, n); + return n; + } + EXPORT_SYMBOL(__copy_to_user_ll); +@@ -710,10 +833,9 @@ unsigned long __copy_from_user_ll_nozero(void *to, const void __user *from, + unsigned long n) + { + if (movsl_is_ok(to, from, n)) +- __copy_user(to, from, n); ++ __copy_user(to, from, n, __copyuser_seg, "", ""); + else +- n = __copy_user_intel((void __user *)to, +- (const void *)from, n); ++ n = __generic_copy_from_user_intel(to, from, n); + return n; + } + EXPORT_SYMBOL(__copy_from_user_ll_nozero); +@@ -740,65 +862,50 @@ unsigned long __copy_from_user_ll_nocache_nozero(void *to, const void __user *fr + if (n > 64 && cpu_has_xmm2) + n = __copy_user_intel_nocache(to, from, n); + else +- __copy_user(to, from, n); ++ __copy_user(to, from, n, __copyuser_seg, "", ""); + #else +- __copy_user(to, from, n); ++ __copy_user(to, from, n, __copyuser_seg, "", ""); + #endif + return n; + } + EXPORT_SYMBOL(__copy_from_user_ll_nocache_nozero); + +-/** +- * copy_to_user: - Copy a block of data into user space. +- * @to: Destination address, in user space. +- * @from: Source address, in kernel space. +- * @n: Number of bytes to copy. +- * +- * Context: User context only. This function may sleep. +- * +- * Copy data from kernel space to user space. +- * +- * Returns number of bytes that could not be copied. +- * On success, this will be zero. +- */ +-unsigned long +-copy_to_user(void __user *to, const void *from, unsigned long n) +-{ +- if (access_ok(VERIFY_WRITE, to, n)) +- n = __copy_to_user(to, from, n); +- return n; +-} +-EXPORT_SYMBOL(copy_to_user); +- +-/** +- * copy_from_user: - Copy a block of data from user space. +- * @to: Destination address, in kernel space. +- * @from: Source address, in user space. +- * @n: Number of bytes to copy. +- * +- * Context: User context only. This function may sleep. +- * +- * Copy data from user space to kernel space. +- * +- * Returns number of bytes that could not be copied. +- * On success, this will be zero. +- * +- * If some data could not be copied, this function will pad the copied +- * data to the requested size using zero bytes. +- */ +-unsigned long +-_copy_from_user(void *to, const void __user *from, unsigned long n) +-{ +- if (access_ok(VERIFY_READ, from, n)) +- n = __copy_from_user(to, from, n); +- else +- memset(to, 0, n); +- return n; +-} +-EXPORT_SYMBOL(_copy_from_user); +- + void copy_from_user_overflow(void) + { + WARN(1, "Buffer overflow detected!\n"); + } + EXPORT_SYMBOL(copy_from_user_overflow); ++ ++void copy_to_user_overflow(void) ++{ ++ WARN(1, "Buffer overflow detected!\n"); ++} ++EXPORT_SYMBOL(copy_to_user_overflow); ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++void __set_fs(mm_segment_t x) ++{ ++ switch (x.seg) { ++ case 0: ++ loadsegment(gs, 0); ++ break; ++ case TASK_SIZE_MAX: ++ loadsegment(gs, __USER_DS); ++ break; ++ case -1UL: ++ loadsegment(gs, __KERNEL_DS); ++ break; ++ default: ++ BUG(); ++ } ++ return; ++} ++EXPORT_SYMBOL(__set_fs); ++ ++void set_fs(mm_segment_t x) ++{ ++ current_thread_info()->addr_limit = x; ++ __set_fs(x); ++} ++EXPORT_SYMBOL(set_fs); ++#endif +diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c +index 0d0326f..6a6155b 100644 +--- a/arch/x86/lib/usercopy_64.c ++++ b/arch/x86/lib/usercopy_64.c +@@ -16,6 +16,12 @@ unsigned long __clear_user(void __user *addr, unsigned long size) + { + long __d0; + might_fault(); ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if ((unsigned long)addr < PAX_USER_SHADOW_BASE) ++ addr += PAX_USER_SHADOW_BASE; ++#endif ++ + /* no memory constraint because it doesn't change any memory gcc knows + about */ + asm volatile( +@@ -100,12 +106,20 @@ long strlen_user(const char __user *s) + } + EXPORT_SYMBOL(strlen_user); + +-unsigned long copy_in_user(void __user *to, const void __user *from, unsigned len) ++unsigned long copy_in_user(void __user *to, const void __user *from, unsigned long len) + { +- if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len)) { +- return copy_user_generic((__force void *)to, (__force void *)from, len); +- } +- return len; ++ if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len)) { ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if ((unsigned long)to < PAX_USER_SHADOW_BASE) ++ to += PAX_USER_SHADOW_BASE; ++ if ((unsigned long)from < PAX_USER_SHADOW_BASE) ++ from += PAX_USER_SHADOW_BASE; ++#endif ++ ++ return copy_user_generic((void __force_kernel *)to, (void __force_kernel *)from, len); ++ } ++ return len; + } + EXPORT_SYMBOL(copy_in_user); + +@@ -115,7 +129,7 @@ EXPORT_SYMBOL(copy_in_user); + * it is not necessary to optimize tail handling. + */ + unsigned long +-copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest) ++copy_user_handle_tail(char __user *to, char __user *from, unsigned long len, unsigned zerorest) + { + char c; + unsigned zero_len; +@@ -132,3 +146,15 @@ copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest) + break; + return len; + } ++ ++void copy_from_user_overflow(void) ++{ ++ WARN(1, "Buffer overflow detected!\n"); ++} ++EXPORT_SYMBOL(copy_from_user_overflow); ++ ++void copy_to_user_overflow(void) ++{ ++ WARN(1, "Buffer overflow detected!\n"); ++} ++EXPORT_SYMBOL(copy_to_user_overflow); +diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c +index 1fb85db..8b3540b 100644 +--- a/arch/x86/mm/extable.c ++++ b/arch/x86/mm/extable.c +@@ -8,7 +8,7 @@ int fixup_exception(struct pt_regs *regs) + const struct exception_table_entry *fixup; + + #ifdef CONFIG_PNPBIOS +- if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs))) { ++ if (unlikely(!v8086_mode(regs) && SEGMENT_IS_PNP_CODE(regs->cs))) { + extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp; + extern u32 pnp_bios_is_utter_crap; + pnp_bios_is_utter_crap = 1; +diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c +index 3ecfd1a..304d554 100644 +--- a/arch/x86/mm/fault.c ++++ b/arch/x86/mm/fault.c +@@ -13,11 +13,18 @@ + #include <linux/perf_event.h> /* perf_sw_event */ + #include <linux/hugetlb.h> /* hstate_index_to_shift */ + #include <linux/prefetch.h> /* prefetchw */ ++#include <linux/unistd.h> ++#include <linux/compiler.h> + + #include <asm/traps.h> /* dotraplinkage, ... */ + #include <asm/pgalloc.h> /* pgd_*(), ... */ + #include <asm/kmemcheck.h> /* kmemcheck_*(), ... */ + #include <asm/fixmap.h> /* VSYSCALL_START */ ++#include <asm/tlbflush.h> ++ ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++#include <asm/stacktrace.h> ++#endif + + /* + * Page fault error code bits: +@@ -55,7 +62,7 @@ static inline int __kprobes notify_page_fault(struct pt_regs *regs) + int ret = 0; + + /* kprobe_running() needs smp_processor_id() */ +- if (kprobes_built_in() && !user_mode_vm(regs)) { ++ if (kprobes_built_in() && !user_mode(regs)) { + preempt_disable(); + if (kprobe_running() && kprobe_fault_handler(regs, 14)) + ret = 1; +@@ -116,7 +123,10 @@ check_prefetch_opcode(struct pt_regs *regs, unsigned char *instr, + return !instr_lo || (instr_lo>>1) == 1; + case 0x00: + /* Prefetch instruction is 0x0F0D or 0x0F18 */ +- if (probe_kernel_address(instr, opcode)) ++ if (user_mode(regs)) { ++ if (__copy_from_user_inatomic(&opcode, (unsigned char __force_user *)(instr), 1)) ++ return 0; ++ } else if (probe_kernel_address(instr, opcode)) + return 0; + + *prefetch = (instr_lo == 0xF) && +@@ -150,7 +160,10 @@ is_prefetch(struct pt_regs *regs, unsigned long error_code, unsigned long addr) + while (instr < max_instr) { + unsigned char opcode; + +- if (probe_kernel_address(instr, opcode)) ++ if (user_mode(regs)) { ++ if (__copy_from_user_inatomic(&opcode, (unsigned char __force_user *)(instr), 1)) ++ break; ++ } else if (probe_kernel_address(instr, opcode)) + break; + + instr++; +@@ -181,6 +194,34 @@ force_sig_info_fault(int si_signo, int si_code, unsigned long address, + force_sig_info(si_signo, &info, tsk); + } + ++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) ++static bool pax_is_fetch_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address); ++#endif ++ ++#ifdef CONFIG_PAX_EMUTRAMP ++static int pax_handle_fetch_fault(struct pt_regs *regs); ++#endif ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++static inline pmd_t * pax_get_pmd(struct mm_struct *mm, unsigned long address) ++{ ++ pgd_t *pgd; ++ pud_t *pud; ++ pmd_t *pmd; ++ ++ pgd = pgd_offset(mm, address); ++ if (!pgd_present(*pgd)) ++ return NULL; ++ pud = pud_offset(pgd, address); ++ if (!pud_present(*pud)) ++ return NULL; ++ pmd = pmd_offset(pud, address); ++ if (!pmd_present(*pmd)) ++ return NULL; ++ return pmd; ++} ++#endif ++ + DEFINE_SPINLOCK(pgd_lock); + LIST_HEAD(pgd_list); + +@@ -231,10 +272,22 @@ void vmalloc_sync_all(void) + for (address = VMALLOC_START & PMD_MASK; + address >= TASK_SIZE && address < FIXADDR_TOP; + address += PMD_SIZE) { ++ ++#ifdef CONFIG_PAX_PER_CPU_PGD ++ unsigned long cpu; ++#else + struct page *page; ++#endif + + spin_lock(&pgd_lock); ++ ++#ifdef CONFIG_PAX_PER_CPU_PGD ++ for (cpu = 0; cpu < nr_cpu_ids; ++cpu) { ++ pgd_t *pgd = get_cpu_pgd(cpu); ++ pmd_t *ret; ++#else + list_for_each_entry(page, &pgd_list, lru) { ++ pgd_t *pgd = page_address(page); + spinlock_t *pgt_lock; + pmd_t *ret; + +@@ -242,8 +295,13 @@ void vmalloc_sync_all(void) + pgt_lock = &pgd_page_get_mm(page)->page_table_lock; + + spin_lock(pgt_lock); +- ret = vmalloc_sync_one(page_address(page), address); ++#endif ++ ++ ret = vmalloc_sync_one(pgd, address); ++ ++#ifndef CONFIG_PAX_PER_CPU_PGD + spin_unlock(pgt_lock); ++#endif + + if (!ret) + break; +@@ -277,6 +335,11 @@ static noinline __kprobes int vmalloc_fault(unsigned long address) + * an interrupt in the middle of a task switch.. + */ + pgd_paddr = read_cr3(); ++ ++#ifdef CONFIG_PAX_PER_CPU_PGD ++ BUG_ON(__pa(get_cpu_pgd(smp_processor_id())) != (pgd_paddr & PHYSICAL_PAGE_MASK)); ++#endif ++ + pmd_k = vmalloc_sync_one(__va(pgd_paddr), address); + if (!pmd_k) + return -1; +@@ -372,7 +435,14 @@ static noinline __kprobes int vmalloc_fault(unsigned long address) + * happen within a race in page table update. In the later + * case just flush: + */ ++ ++#ifdef CONFIG_PAX_PER_CPU_PGD ++ BUG_ON(__pa(get_cpu_pgd(smp_processor_id())) != (read_cr3() & PHYSICAL_PAGE_MASK)); ++ pgd = pgd_offset_cpu(smp_processor_id(), address); ++#else + pgd = pgd_offset(current->active_mm, address); ++#endif ++ + pgd_ref = pgd_offset_k(address); + if (pgd_none(*pgd_ref)) + return -1; +@@ -540,7 +610,7 @@ static int is_errata93(struct pt_regs *regs, unsigned long address) + static int is_errata100(struct pt_regs *regs, unsigned long address) + { + #ifdef CONFIG_X86_64 +- if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) && (address >> 32)) ++ if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) && (address >> 32)) + return 1; + #endif + return 0; +@@ -567,7 +637,7 @@ static int is_f00f_bug(struct pt_regs *regs, unsigned long address) + } + + static const char nx_warning[] = KERN_CRIT +-"kernel tried to execute NX-protected page - exploit attempt? (uid: %d)\n"; ++"kernel tried to execute NX-protected page - exploit attempt? (uid: %d, task: %s, pid: %d)\n"; + + static void + show_fault_oops(struct pt_regs *regs, unsigned long error_code, +@@ -576,15 +646,26 @@ show_fault_oops(struct pt_regs *regs, unsigned long error_code, + if (!oops_may_print()) + return; + +- if (error_code & PF_INSTR) { ++ if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR)) { + unsigned int level; + + pte_t *pte = lookup_address(address, &level); + + if (pte && pte_present(*pte) && !pte_exec(*pte)) +- printk(nx_warning, current_uid()); ++ printk(nx_warning, current_uid(), current->comm, task_pid_nr(current)); + } + ++#ifdef CONFIG_PAX_KERNEXEC ++ if (init_mm.start_code <= address && address < init_mm.end_code) { ++ if (current->signal->curr_ip) ++ printk(KERN_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", ++ &current->signal->curr_ip, current->comm, task_pid_nr(current), current_uid(), current_euid()); ++ else ++ printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", ++ current->comm, task_pid_nr(current), current_uid(), current_euid()); ++ } ++#endif ++ + printk(KERN_ALERT "BUG: unable to handle kernel "); + if (address < PAGE_SIZE) + printk(KERN_CONT "NULL pointer dereference"); +@@ -748,6 +829,21 @@ __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code, + } + #endif + ++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) ++ if (pax_is_fetch_fault(regs, error_code, address)) { ++ ++#ifdef CONFIG_PAX_EMUTRAMP ++ switch (pax_handle_fetch_fault(regs)) { ++ case 2: ++ return; ++ } ++#endif ++ ++ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp); ++ do_group_exit(SIGKILL); ++ } ++#endif ++ + if (unlikely(show_unhandled_signals)) + show_signal_msg(regs, error_code, address, tsk); + +@@ -844,7 +940,7 @@ do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address, + if (fault & (VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE)) { + printk(KERN_ERR + "MCE: Killing %s:%d due to hardware memory corruption fault at %lx\n", +- tsk->comm, tsk->pid, address); ++ tsk->comm, task_pid_nr(tsk), address); + code = BUS_MCEERR_AR; + } + #endif +@@ -900,6 +996,99 @@ static int spurious_fault_check(unsigned long error_code, pte_t *pte) + return 1; + } + ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) ++static int pax_handle_pageexec_fault(struct pt_regs *regs, struct mm_struct *mm, unsigned long address, unsigned long error_code) ++{ ++ pte_t *pte; ++ pmd_t *pmd; ++ spinlock_t *ptl; ++ unsigned char pte_mask; ++ ++ if ((__supported_pte_mask & _PAGE_NX) || (error_code & (PF_PROT|PF_USER)) != (PF_PROT|PF_USER) || v8086_mode(regs) || ++ !(mm->pax_flags & MF_PAX_PAGEEXEC)) ++ return 0; ++ ++ /* PaX: it's our fault, let's handle it if we can */ ++ ++ /* PaX: take a look at read faults before acquiring any locks */ ++ if (unlikely(!(error_code & PF_WRITE) && (regs->ip == address))) { ++ /* instruction fetch attempt from a protected page in user mode */ ++ up_read(&mm->mmap_sem); ++ ++#ifdef CONFIG_PAX_EMUTRAMP ++ switch (pax_handle_fetch_fault(regs)) { ++ case 2: ++ return 1; ++ } ++#endif ++ ++ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp); ++ do_group_exit(SIGKILL); ++ } ++ ++ pmd = pax_get_pmd(mm, address); ++ if (unlikely(!pmd)) ++ return 0; ++ ++ pte = pte_offset_map_lock(mm, pmd, address, &ptl); ++ if (unlikely(!(pte_val(*pte) & _PAGE_PRESENT) || pte_user(*pte))) { ++ pte_unmap_unlock(pte, ptl); ++ return 0; ++ } ++ ++ if (unlikely((error_code & PF_WRITE) && !pte_write(*pte))) { ++ /* write attempt to a protected page in user mode */ ++ pte_unmap_unlock(pte, ptl); ++ return 0; ++ } ++ ++#ifdef CONFIG_SMP ++ if (likely(address > get_limit(regs->cs) && cpu_isset(smp_processor_id(), mm->context.cpu_user_cs_mask))) ++#else ++ if (likely(address > get_limit(regs->cs))) ++#endif ++ { ++ set_pte(pte, pte_mkread(*pte)); ++ __flush_tlb_one(address); ++ pte_unmap_unlock(pte, ptl); ++ up_read(&mm->mmap_sem); ++ return 1; ++ } ++ ++ pte_mask = _PAGE_ACCESSED | _PAGE_USER | ((error_code & PF_WRITE) << (_PAGE_BIT_DIRTY-1)); ++ ++ /* ++ * PaX: fill DTLB with user rights and retry ++ */ ++ __asm__ __volatile__ ( ++ "orb %2,(%1)\n" ++#if defined(CONFIG_M586) || defined(CONFIG_M586TSC) ++/* ++ * PaX: let this uncommented 'invlpg' remind us on the behaviour of Intel's ++ * (and AMD's) TLBs. namely, they do not cache PTEs that would raise *any* ++ * page fault when examined during a TLB load attempt. this is true not only ++ * for PTEs holding a non-present entry but also present entries that will ++ * raise a page fault (such as those set up by PaX, or the copy-on-write ++ * mechanism). in effect it means that we do *not* need to flush the TLBs ++ * for our target pages since their PTEs are simply not in the TLBs at all. ++ ++ * the best thing in omitting it is that we gain around 15-20% speed in the ++ * fast path of the page fault handler and can get rid of tracing since we ++ * can no longer flush unintended entries. ++ */ ++ "invlpg (%0)\n" ++#endif ++ __copyuser_seg"testb $0,(%0)\n" ++ "xorb %3,(%1)\n" ++ : ++ : "r" (address), "r" (pte), "q" (pte_mask), "i" (_PAGE_USER) ++ : "memory", "cc"); ++ pte_unmap_unlock(pte, ptl); ++ up_read(&mm->mmap_sem); ++ return 1; ++} ++#endif ++ + /* + * Handle a spurious fault caused by a stale TLB entry. + * +@@ -972,6 +1161,9 @@ int show_unhandled_signals = 1; + static inline int + access_error(unsigned long error_code, struct vm_area_struct *vma) + { ++ if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR) && !(vma->vm_flags & VM_EXEC)) ++ return 1; ++ + if (error_code & PF_WRITE) { + /* write, present and write, not present: */ + if (unlikely(!(vma->vm_flags & VM_WRITE))) +@@ -1005,18 +1197,33 @@ do_page_fault(struct pt_regs *regs, unsigned long error_code) + { + struct vm_area_struct *vma; + struct task_struct *tsk; +- unsigned long address; + struct mm_struct *mm; + int fault; + int write = error_code & PF_WRITE; + unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE | + (write ? FAULT_FLAG_WRITE : 0); + +- tsk = current; +- mm = tsk->mm; +- + /* Get the faulting address: */ +- address = read_cr2(); ++ unsigned long address = read_cr2(); ++ ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++ if (!user_mode(regs) && address < 2 * PAX_USER_SHADOW_BASE) { ++ if (!search_exception_tables(regs->ip)) { ++ printk(KERN_ERR "PAX: please report this to pageexec(a)freemail.hu\n"); ++ bad_area_nosemaphore(regs, error_code, address); ++ return; ++ } ++ if (address < PAX_USER_SHADOW_BASE) { ++ printk(KERN_ERR "PAX: please report this to pageexec(a)freemail.hu\n"); ++ printk(KERN_ERR "PAX: faulting IP: %pS\n", (void *)regs->ip); ++ show_trace_log_lvl(NULL, NULL, (void *)regs->sp, regs->bp, KERN_ERR); ++ } else ++ address -= PAX_USER_SHADOW_BASE; ++ } ++#endif ++ ++ tsk = current; ++ mm = tsk->mm; + + /* + * Detect and handle instructions that would cause a page fault for +@@ -1077,7 +1284,7 @@ do_page_fault(struct pt_regs *regs, unsigned long error_code) + * User-mode registers count as a user access even for any + * potential system fault or CPU buglet: + */ +- if (user_mode_vm(regs)) { ++ if (user_mode(regs)) { + local_irq_enable(); + error_code |= PF_USER; + } else { +@@ -1132,6 +1339,11 @@ retry: + might_sleep(); + } + ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) ++ if (pax_handle_pageexec_fault(regs, mm, address, error_code)) ++ return; ++#endif ++ + vma = find_vma(mm, address); + if (unlikely(!vma)) { + bad_area(regs, error_code, address); +@@ -1143,18 +1355,24 @@ retry: + bad_area(regs, error_code, address); + return; + } +- if (error_code & PF_USER) { +- /* +- * Accessing the stack below %sp is always a bug. +- * The large cushion allows instructions like enter +- * and pusha to work. ("enter $65535, $31" pushes +- * 32 pointers and then decrements %sp by 65535.) +- */ +- if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < regs->sp)) { +- bad_area(regs, error_code, address); +- return; +- } ++ /* ++ * Accessing the stack below %sp is always a bug. ++ * The large cushion allows instructions like enter ++ * and pusha to work. ("enter $65535, $31" pushes ++ * 32 pointers and then decrements %sp by 65535.) ++ */ ++ if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < task_pt_regs(tsk)->sp)) { ++ bad_area(regs, error_code, address); ++ return; + } ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (unlikely((mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end - SEGMEXEC_TASK_SIZE - 1 < address - SEGMEXEC_TASK_SIZE - 1)) { ++ bad_area(regs, error_code, address); ++ return; ++ } ++#endif ++ + if (unlikely(expand_stack(vma, address))) { + bad_area(regs, error_code, address); + return; +@@ -1209,3 +1427,292 @@ good_area: + + up_read(&mm->mmap_sem); + } ++ ++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) ++static bool pax_is_fetch_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address) ++{ ++ struct mm_struct *mm = current->mm; ++ unsigned long ip = regs->ip; ++ ++ if (v8086_mode(regs)) ++ ip = ((regs->cs & 0xffff) << 4) + (ip & 0xffff); ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++ if (mm->pax_flags & MF_PAX_PAGEEXEC) { ++ if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR)) ++ return true; ++ if (!(error_code & (PF_PROT | PF_WRITE)) && ip == address) ++ return true; ++ return false; ++ } ++#endif ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (mm->pax_flags & MF_PAX_SEGMEXEC) { ++ if (!(error_code & (PF_PROT | PF_WRITE)) && (ip + SEGMEXEC_TASK_SIZE == address)) ++ return true; ++ return false; ++ } ++#endif ++ ++ return false; ++} ++#endif ++ ++#ifdef CONFIG_PAX_EMUTRAMP ++static int pax_handle_fetch_fault_32(struct pt_regs *regs) ++{ ++ int err; ++ ++ do { /* PaX: libffi trampoline emulation */ ++ unsigned char mov, jmp; ++ unsigned int addr1, addr2; ++ ++#ifdef CONFIG_X86_64 ++ if ((regs->ip + 9) >> 32) ++ break; ++#endif ++ ++ err = get_user(mov, (unsigned char __user *)regs->ip); ++ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1)); ++ err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5)); ++ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6)); ++ ++ if (err) ++ break; ++ ++ if (mov == 0xB8 && jmp == 0xE9) { ++ regs->ax = addr1; ++ regs->ip = (unsigned int)(regs->ip + addr2 + 10); ++ return 2; ++ } ++ } while (0); ++ ++ do { /* PaX: gcc trampoline emulation #1 */ ++ unsigned char mov1, mov2; ++ unsigned short jmp; ++ unsigned int addr1, addr2; ++ ++#ifdef CONFIG_X86_64 ++ if ((regs->ip + 11) >> 32) ++ break; ++#endif ++ ++ err = get_user(mov1, (unsigned char __user *)regs->ip); ++ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1)); ++ err |= get_user(mov2, (unsigned char __user *)(regs->ip + 5)); ++ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6)); ++ err |= get_user(jmp, (unsigned short __user *)(regs->ip + 10)); ++ ++ if (err) ++ break; ++ ++ if (mov1 == 0xB9 && mov2 == 0xB8 && jmp == 0xE0FF) { ++ regs->cx = addr1; ++ regs->ax = addr2; ++ regs->ip = addr2; ++ return 2; ++ } ++ } while (0); ++ ++ do { /* PaX: gcc trampoline emulation #2 */ ++ unsigned char mov, jmp; ++ unsigned int addr1, addr2; ++ ++#ifdef CONFIG_X86_64 ++ if ((regs->ip + 9) >> 32) ++ break; ++#endif ++ ++ err = get_user(mov, (unsigned char __user *)regs->ip); ++ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1)); ++ err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5)); ++ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6)); ++ ++ if (err) ++ break; ++ ++ if (mov == 0xB9 && jmp == 0xE9) { ++ regs->cx = addr1; ++ regs->ip = (unsigned int)(regs->ip + addr2 + 10); ++ return 2; ++ } ++ } while (0); ++ ++ return 1; /* PaX in action */ ++} ++ ++#ifdef CONFIG_X86_64 ++static int pax_handle_fetch_fault_64(struct pt_regs *regs) ++{ ++ int err; ++ ++ do { /* PaX: libffi trampoline emulation */ ++ unsigned short mov1, mov2, jmp1; ++ unsigned char stcclc, jmp2; ++ unsigned long addr1, addr2; ++ ++ err = get_user(mov1, (unsigned short __user *)regs->ip); ++ err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2)); ++ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10)); ++ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12)); ++ err |= get_user(stcclc, (unsigned char __user *)(regs->ip + 20)); ++ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 21)); ++ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 23)); ++ ++ if (err) ++ break; ++ ++ if (mov1 == 0xBB49 && mov2 == 0xBA49 && (stcclc == 0xF8 || stcclc == 0xF9) && jmp1 == 0xFF49 && jmp2 == 0xE3) { ++ regs->r11 = addr1; ++ regs->r10 = addr2; ++ if (stcclc == 0xF8) ++ regs->flags &= ~X86_EFLAGS_CF; ++ else ++ regs->flags |= X86_EFLAGS_CF; ++ regs->ip = addr1; ++ return 2; ++ } ++ } while (0); ++ ++ do { /* PaX: gcc trampoline emulation #1 */ ++ unsigned short mov1, mov2, jmp1; ++ unsigned char jmp2; ++ unsigned int addr1; ++ unsigned long addr2; ++ ++ err = get_user(mov1, (unsigned short __user *)regs->ip); ++ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 2)); ++ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 6)); ++ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 8)); ++ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 16)); ++ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 18)); ++ ++ if (err) ++ break; ++ ++ if (mov1 == 0xBB41 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) { ++ regs->r11 = addr1; ++ regs->r10 = addr2; ++ regs->ip = addr1; ++ return 2; ++ } ++ } while (0); ++ ++ do { /* PaX: gcc trampoline emulation #2 */ ++ unsigned short mov1, mov2, jmp1; ++ unsigned char jmp2; ++ unsigned long addr1, addr2; ++ ++ err = get_user(mov1, (unsigned short __user *)regs->ip); ++ err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2)); ++ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10)); ++ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12)); ++ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 20)); ++ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 22)); ++ ++ if (err) ++ break; ++ ++ if (mov1 == 0xBB49 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) { ++ regs->r11 = addr1; ++ regs->r10 = addr2; ++ regs->ip = addr1; ++ return 2; ++ } ++ } while (0); ++ ++ return 1; /* PaX in action */ ++} ++#endif ++ ++/* ++ * PaX: decide what to do with offenders (regs->ip = fault address) ++ * ++ * returns 1 when task should be killed ++ * 2 when gcc trampoline was detected ++ */ ++static int pax_handle_fetch_fault(struct pt_regs *regs) ++{ ++ if (v8086_mode(regs)) ++ return 1; ++ ++ if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP)) ++ return 1; ++ ++#ifdef CONFIG_X86_32 ++ return pax_handle_fetch_fault_32(regs); ++#else ++ if (regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) ++ return pax_handle_fetch_fault_32(regs); ++ else ++ return pax_handle_fetch_fault_64(regs); ++#endif ++} ++#endif ++ ++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) ++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp) ++{ ++ long i; ++ ++ printk(KERN_ERR "PAX: bytes at PC: "); ++ for (i = 0; i < 20; i++) { ++ unsigned char c; ++ if (get_user(c, (unsigned char __force_user *)pc+i)) ++ printk(KERN_CONT "?? "); ++ else ++ printk(KERN_CONT "%02x ", c); ++ } ++ printk("\n"); ++ ++ printk(KERN_ERR "PAX: bytes at SP-%lu: ", (unsigned long)sizeof(long)); ++ for (i = -1; i < 80 / (long)sizeof(long); i++) { ++ unsigned long c; ++ if (get_user(c, (unsigned long __force_user *)sp+i)) { ++#ifdef CONFIG_X86_32 ++ printk(KERN_CONT "???????? "); ++#else ++ if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))) ++ printk(KERN_CONT "???????? ???????? "); ++ else ++ printk(KERN_CONT "???????????????? "); ++#endif ++ } else { ++#ifdef CONFIG_X86_64 ++ if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))) { ++ printk(KERN_CONT "%08x ", (unsigned int)c); ++ printk(KERN_CONT "%08x ", (unsigned int)(c >> 32)); ++ } else ++#endif ++ printk(KERN_CONT "%0*lx ", 2 * (int)sizeof(long), c); ++ } ++ } ++ printk("\n"); ++} ++#endif ++ ++/** ++ * probe_kernel_write(): safely attempt to write to a location ++ * @dst: address to write to ++ * @src: pointer to the data that shall be written ++ * @size: size of the data chunk ++ * ++ * Safely write to address @dst from the buffer at @src. If a kernel fault ++ * happens, handle that and return -EFAULT. ++ */ ++long notrace probe_kernel_write(void *dst, const void *src, size_t size) ++{ ++ long ret; ++ mm_segment_t old_fs = get_fs(); ++ ++ set_fs(KERNEL_DS); ++ pagefault_disable(); ++ pax_open_kernel(); ++ ret = __copy_to_user_inatomic((void __force_user *)dst, src, size); ++ pax_close_kernel(); ++ pagefault_enable(); ++ set_fs(old_fs); ++ ++ return ret ? -EFAULT : 0; ++} +diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c +index dd74e46..7d26398 100644 +--- a/arch/x86/mm/gup.c ++++ b/arch/x86/mm/gup.c +@@ -255,7 +255,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write, + addr = start; + len = (unsigned long) nr_pages << PAGE_SHIFT; + end = start + len; +- if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ, ++ if (unlikely(!__access_ok(write ? VERIFY_WRITE : VERIFY_READ, + (void __user *)start, len))) + return 0; + +diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c +index 6f31ee5..8ee4164 100644 +--- a/arch/x86/mm/highmem_32.c ++++ b/arch/x86/mm/highmem_32.c +@@ -44,7 +44,11 @@ void *kmap_atomic_prot(struct page *page, pgprot_t prot) + idx = type + KM_TYPE_NR*smp_processor_id(); + vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); + BUG_ON(!pte_none(*(kmap_pte-idx))); ++ ++ pax_open_kernel(); + set_pte(kmap_pte-idx, mk_pte(page, prot)); ++ pax_close_kernel(); ++ + arch_flush_lazy_mmu_mode(); + + return (void *)vaddr; +diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c +index f6679a7..8f795a3 100644 +--- a/arch/x86/mm/hugetlbpage.c ++++ b/arch/x86/mm/hugetlbpage.c +@@ -266,13 +266,20 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file, + struct hstate *h = hstate_file(file); + struct mm_struct *mm = current->mm; + struct vm_area_struct *vma; +- unsigned long start_addr; ++ unsigned long start_addr, pax_task_size = TASK_SIZE; ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (mm->pax_flags & MF_PAX_SEGMEXEC) ++ pax_task_size = SEGMEXEC_TASK_SIZE; ++#endif ++ ++ pax_task_size -= PAGE_SIZE; + + if (len > mm->cached_hole_size) { +- start_addr = mm->free_area_cache; ++ start_addr = mm->free_area_cache; + } else { +- start_addr = TASK_UNMAPPED_BASE; +- mm->cached_hole_size = 0; ++ start_addr = mm->mmap_base; ++ mm->cached_hole_size = 0; + } + + full_search: +@@ -280,26 +287,27 @@ full_search: + + for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { + /* At this point: (!vma || addr < vma->vm_end). */ +- if (TASK_SIZE - len < addr) { ++ if (pax_task_size - len < addr) { + /* + * Start a new search - just in case we missed + * some holes. + */ +- if (start_addr != TASK_UNMAPPED_BASE) { +- start_addr = TASK_UNMAPPED_BASE; ++ if (start_addr != mm->mmap_base) { ++ start_addr = mm->mmap_base; + mm->cached_hole_size = 0; + goto full_search; + } + return -ENOMEM; + } +- if (!vma || addr + len <= vma->vm_start) { +- mm->free_area_cache = addr + len; +- return addr; +- } ++ if (check_heap_stack_gap(vma, addr, len)) ++ break; + if (addr + mm->cached_hole_size < vma->vm_start) + mm->cached_hole_size = vma->vm_start - addr; + addr = ALIGN(vma->vm_end, huge_page_size(h)); + } ++ ++ mm->free_area_cache = addr + len; ++ return addr; + } + + static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file, +@@ -310,9 +318,8 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file, + struct mm_struct *mm = current->mm; + struct vm_area_struct *vma; + unsigned long base = mm->mmap_base; +- unsigned long addr = addr0; ++ unsigned long addr; + unsigned long largest_hole = mm->cached_hole_size; +- unsigned long start_addr; + + /* don't allow allocations above current base */ + if (mm->free_area_cache > base) +@@ -322,16 +329,15 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file, + largest_hole = 0; + mm->free_area_cache = base; + } +-try_again: +- start_addr = mm->free_area_cache; + + /* make sure it can fit in the remaining address space */ + if (mm->free_area_cache < len) + goto fail; + + /* either no address requested or can't fit in requested address hole */ +- addr = (mm->free_area_cache - len) & huge_page_mask(h); ++ addr = mm->free_area_cache - len; + do { ++ addr &= huge_page_mask(h); + /* + * Lookup failure means no vma is above this address, + * i.e. return with success: +@@ -340,10 +346,10 @@ try_again: + if (!vma) + return addr; + +- if (addr + len <= vma->vm_start) { ++ if (check_heap_stack_gap(vma, addr, len)) { + /* remember the address as a hint for next time */ +- mm->cached_hole_size = largest_hole; +- return (mm->free_area_cache = addr); ++ mm->cached_hole_size = largest_hole; ++ return (mm->free_area_cache = addr); + } else if (mm->free_area_cache == vma->vm_end) { + /* pull free_area_cache down to the first hole */ + mm->free_area_cache = vma->vm_start; +@@ -352,29 +358,34 @@ try_again: + + /* remember the largest hole we saw so far */ + if (addr + largest_hole < vma->vm_start) +- largest_hole = vma->vm_start - addr; ++ largest_hole = vma->vm_start - addr; + + /* try just below the current vma->vm_start */ +- addr = (vma->vm_start - len) & huge_page_mask(h); +- } while (len <= vma->vm_start); ++ addr = skip_heap_stack_gap(vma, len); ++ } while (!IS_ERR_VALUE(addr)); + + fail: + /* +- * if hint left us with no space for the requested +- * mapping then try again: +- */ +- if (start_addr != base) { +- mm->free_area_cache = base; +- largest_hole = 0; +- goto try_again; +- } +- /* + * A failed mmap() very likely causes application failure, + * so fall back to the bottom-up function here. This scenario + * can happen with large stack limits and large mmap() + * allocations. + */ +- mm->free_area_cache = TASK_UNMAPPED_BASE; ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (mm->pax_flags & MF_PAX_SEGMEXEC) ++ mm->mmap_base = SEGMEXEC_TASK_UNMAPPED_BASE; ++ else ++#endif ++ ++ mm->mmap_base = TASK_UNMAPPED_BASE; ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ mm->mmap_base += mm->delta_mmap; ++#endif ++ ++ mm->free_area_cache = mm->mmap_base; + mm->cached_hole_size = ~0UL; + addr = hugetlb_get_unmapped_area_bottomup(file, addr0, + len, pgoff, flags); +@@ -382,6 +393,7 @@ fail: + /* + * Restore the topdown base: + */ ++ mm->mmap_base = base; + mm->free_area_cache = base; + mm->cached_hole_size = ~0UL; + +@@ -395,10 +407,19 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr, + struct hstate *h = hstate_file(file); + struct mm_struct *mm = current->mm; + struct vm_area_struct *vma; ++ unsigned long pax_task_size = TASK_SIZE; + + if (len & ~huge_page_mask(h)) + return -EINVAL; +- if (len > TASK_SIZE) ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (mm->pax_flags & MF_PAX_SEGMEXEC) ++ pax_task_size = SEGMEXEC_TASK_SIZE; ++#endif ++ ++ pax_task_size -= PAGE_SIZE; ++ ++ if (len > pax_task_size) + return -ENOMEM; + + if (flags & MAP_FIXED) { +@@ -410,8 +431,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr, + if (addr) { + addr = ALIGN(addr, huge_page_size(h)); + vma = find_vma(mm, addr); +- if (TASK_SIZE - len >= addr && +- (!vma || addr + len <= vma->vm_start)) ++ if (pax_task_size - len >= addr && check_heap_stack_gap(vma, addr, len)) + return addr; + } + if (mm->get_unmapped_area == arch_get_unmapped_area) +diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c +index 4f0cec7..00976ce 100644 +--- a/arch/x86/mm/init.c ++++ b/arch/x86/mm/init.c +@@ -16,6 +16,8 @@ + #include <asm/tlb.h> + #include <asm/proto.h> + #include <asm/dma.h> /* for MAX_DMA_PFN */ ++#include <asm/desc.h> ++#include <asm/bios_ebda.h> + + unsigned long __initdata pgt_buf_start; + unsigned long __meminitdata pgt_buf_end; +@@ -32,7 +34,7 @@ int direct_gbpages + static void __init find_early_table_space(unsigned long end, int use_pse, + int use_gbpages) + { +- unsigned long puds, pmds, ptes, tables, start = 0, good_end = end; ++ unsigned long puds, pmds, ptes, tables, start = 0x100000, good_end = end; + phys_addr_t base; + + puds = (end + PUD_SIZE - 1) >> PUD_SHIFT; +@@ -311,10 +313,37 @@ unsigned long __init_refok init_memory_mapping(unsigned long start, + * Access has to be given to non-kernel-ram areas as well, these contain the PCI + * mmio resources as well as potential bios/acpi data regions. + */ ++ ++#ifdef CONFIG_GRKERNSEC_KMEM ++static unsigned int ebda_start __read_only; ++static unsigned int ebda_end __read_only; ++#endif ++ + int devmem_is_allowed(unsigned long pagenr) + { ++#ifdef CONFIG_GRKERNSEC_KMEM ++ /* allow BDA */ ++ if (!pagenr) ++ return 1; ++ /* allow EBDA */ ++ if (pagenr >= ebda_start && pagenr < ebda_end) ++ return 1; ++#else ++ if (!pagenr) ++ return 1; ++#ifdef CONFIG_VM86 ++ if (pagenr < (ISA_START_ADDRESS >> PAGE_SHIFT)) ++ return 1; ++#endif ++#endif ++ ++ if ((ISA_START_ADDRESS >> PAGE_SHIFT) <= pagenr && pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT)) ++ return 1; ++#ifdef CONFIG_GRKERNSEC_KMEM ++ /* throw out everything else below 1MB */ + if (pagenr <= 256) +- return 1; ++ return 0; ++#endif + if (iomem_is_exclusive(pagenr << PAGE_SHIFT)) + return 0; + if (!page_is_ram(pagenr)) +@@ -371,8 +400,116 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end) + #endif + } + ++#ifdef CONFIG_GRKERNSEC_KMEM ++static inline void gr_init_ebda(void) ++{ ++ unsigned int ebda_addr; ++ unsigned int ebda_size = 0; ++ ++ ebda_addr = get_bios_ebda(); ++ if (ebda_addr) { ++ ebda_size = *(unsigned char *)phys_to_virt(ebda_addr); ++ ebda_size <<= 10; ++ } ++ if (ebda_addr && ebda_size) { ++ ebda_start = ebda_addr >> PAGE_SHIFT; ++ ebda_end = min((unsigned int)PAGE_ALIGN(ebda_addr + ebda_size), (unsigned int)0xa0000) >> PAGE_SHIFT; ++ } else { ++ ebda_start = 0x9f000 >> PAGE_SHIFT; ++ ebda_end = 0xa0000 >> PAGE_SHIFT; ++ } ++} ++#else ++static inline void gr_init_ebda(void) { } ++#endif ++ + void free_initmem(void) + { ++#ifdef CONFIG_PAX_KERNEXEC ++#ifdef CONFIG_X86_32 ++ /* PaX: limit KERNEL_CS to actual size */ ++ unsigned long addr, limit; ++ struct desc_struct d; ++ int cpu; ++#else ++ pgd_t *pgd; ++ pud_t *pud; ++ pmd_t *pmd; ++ unsigned long addr, end; ++#endif ++#endif ++ ++ gr_init_ebda(); ++ ++#ifdef CONFIG_PAX_KERNEXEC ++#ifdef CONFIG_X86_32 ++ limit = paravirt_enabled() ? ktva_ktla(0xffffffff) : (unsigned long)&_etext; ++ limit = (limit - 1UL) >> PAGE_SHIFT; ++ ++ memset(__LOAD_PHYSICAL_ADDR + PAGE_OFFSET, POISON_FREE_INITMEM, PAGE_SIZE); ++ for (cpu = 0; cpu < nr_cpu_ids; cpu++) { ++ pack_descriptor(&d, get_desc_base(&get_cpu_gdt_table(cpu)[GDT_ENTRY_KERNEL_CS]), limit, 0x9B, 0xC); ++ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEL_CS, &d, DESCTYPE_S); ++ } ++ ++ /* PaX: make KERNEL_CS read-only */ ++ addr = PFN_ALIGN(ktla_ktva((unsigned long)&_text)); ++ if (!paravirt_enabled()) ++ set_memory_ro(addr, (PFN_ALIGN(_sdata) - addr) >> PAGE_SHIFT); ++/* ++ for (addr = ktla_ktva((unsigned long)&_text); addr < (unsigned long)&_sdata; addr += PMD_SIZE) { ++ pgd = pgd_offset_k(addr); ++ pud = pud_offset(pgd, addr); ++ pmd = pmd_offset(pud, addr); ++ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW)); ++ } ++*/ ++#ifdef CONFIG_X86_PAE ++ set_memory_nx(PFN_ALIGN(__init_begin), (PFN_ALIGN(__init_end) - PFN_ALIGN(__init_begin)) >> PAGE_SHIFT); ++/* ++ for (addr = (unsigned long)&__init_begin; addr < (unsigned long)&__init_end; addr += PMD_SIZE) { ++ pgd = pgd_offset_k(addr); ++ pud = pud_offset(pgd, addr); ++ pmd = pmd_offset(pud, addr); ++ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask))); ++ } ++*/ ++#endif ++ ++#ifdef CONFIG_MODULES ++ set_memory_4k((unsigned long)MODULES_EXEC_VADDR, (MODULES_EXEC_END - MODULES_EXEC_VADDR) >> PAGE_SHIFT); ++#endif ++ ++#else ++ /* PaX: make kernel code/rodata read-only, rest non-executable */ ++ for (addr = __START_KERNEL_map; addr < __START_KERNEL_map + KERNEL_IMAGE_SIZE; addr += PMD_SIZE) { ++ pgd = pgd_offset_k(addr); ++ pud = pud_offset(pgd, addr); ++ pmd = pmd_offset(pud, addr); ++ if (!pmd_present(*pmd)) ++ continue; ++ if ((unsigned long)_text <= addr && addr < (unsigned long)_sdata) ++ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW)); ++ else ++ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask))); ++ } ++ ++ addr = (unsigned long)__va(__pa(__START_KERNEL_map)); ++ end = addr + KERNEL_IMAGE_SIZE; ++ for (; addr < end; addr += PMD_SIZE) { ++ pgd = pgd_offset_k(addr); ++ pud = pud_offset(pgd, addr); ++ pmd = pmd_offset(pud, addr); ++ if (!pmd_present(*pmd)) ++ continue; ++ if ((unsigned long)__va(__pa(_text)) <= addr && addr < (unsigned long)__va(__pa(_sdata))) ++ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW)); ++ } ++#endif ++ ++ flush_tlb_all(); ++#endif ++ + free_init_pages("unused kernel memory", + (unsigned long)(&__init_begin), + (unsigned long)(&__init_end)); +diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c +index 575d86f..4987469 100644 +--- a/arch/x86/mm/init_32.c ++++ b/arch/x86/mm/init_32.c +@@ -73,36 +73,6 @@ static __init void *alloc_low_page(void) + } + + /* +- * Creates a middle page table and puts a pointer to it in the +- * given global directory entry. This only returns the gd entry +- * in non-PAE compilation mode, since the middle layer is folded. +- */ +-static pmd_t * __init one_md_table_init(pgd_t *pgd) +-{ +- pud_t *pud; +- pmd_t *pmd_table; +- +-#ifdef CONFIG_X86_PAE +- if (!(pgd_val(*pgd) & _PAGE_PRESENT)) { +- if (after_bootmem) +- pmd_table = (pmd_t *)alloc_bootmem_pages(PAGE_SIZE); +- else +- pmd_table = (pmd_t *)alloc_low_page(); +- paravirt_alloc_pmd(&init_mm, __pa(pmd_table) >> PAGE_SHIFT); +- set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT)); +- pud = pud_offset(pgd, 0); +- BUG_ON(pmd_table != pmd_offset(pud, 0)); +- +- return pmd_table; +- } +-#endif +- pud = pud_offset(pgd, 0); +- pmd_table = pmd_offset(pud, 0); +- +- return pmd_table; +-} +- +-/* + * Create a page table and place a pointer to it in a middle page + * directory entry: + */ +@@ -122,13 +92,28 @@ static pte_t * __init one_page_table_init(pmd_t *pmd) + page_table = (pte_t *)alloc_low_page(); + + paravirt_alloc_pte(&init_mm, __pa(page_table) >> PAGE_SHIFT); ++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) ++ set_pmd(pmd, __pmd(__pa(page_table) | _KERNPG_TABLE)); ++#else + set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE)); ++#endif + BUG_ON(page_table != pte_offset_kernel(pmd, 0)); + } + + return pte_offset_kernel(pmd, 0); + } + ++static pmd_t * __init one_md_table_init(pgd_t *pgd) ++{ ++ pud_t *pud; ++ pmd_t *pmd_table; ++ ++ pud = pud_offset(pgd, 0); ++ pmd_table = pmd_offset(pud, 0); ++ ++ return pmd_table; ++} ++ + pmd_t * __init populate_extra_pmd(unsigned long vaddr) + { + int pgd_idx = pgd_index(vaddr); +@@ -202,6 +187,7 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base) + int pgd_idx, pmd_idx; + unsigned long vaddr; + pgd_t *pgd; ++ pud_t *pud; + pmd_t *pmd; + pte_t *pte = NULL; + +@@ -211,8 +197,13 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base) + pgd = pgd_base + pgd_idx; + + for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd++, pgd_idx++) { +- pmd = one_md_table_init(pgd); +- pmd = pmd + pmd_index(vaddr); ++ pud = pud_offset(pgd, vaddr); ++ pmd = pmd_offset(pud, vaddr); ++ ++#ifdef CONFIG_X86_PAE ++ paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT); ++#endif ++ + for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end); + pmd++, pmd_idx++) { + pte = page_table_kmap_check(one_page_table_init(pmd), +@@ -224,11 +215,20 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base) + } + } + +-static inline int is_kernel_text(unsigned long addr) ++static inline int is_kernel_text(unsigned long start, unsigned long end) + { +- if (addr >= (unsigned long)_text && addr <= (unsigned long)__init_end) +- return 1; +- return 0; ++ if ((start > ktla_ktva((unsigned long)_etext) || ++ end <= ktla_ktva((unsigned long)_stext)) && ++ (start > ktla_ktva((unsigned long)_einittext) || ++ end <= ktla_ktva((unsigned long)_sinittext)) && ++ ++#ifdef CONFIG_ACPI_SLEEP ++ (start > (unsigned long)__va(acpi_wakeup_address) + 0x4000 || end <= (unsigned long)__va(acpi_wakeup_address)) && ++#endif ++ ++ (start > (unsigned long)__va(0xfffff) || end <= (unsigned long)__va(0xc0000))) ++ return 0; ++ return 1; + } + + /* +@@ -245,9 +245,10 @@ kernel_physical_mapping_init(unsigned long start, + unsigned long last_map_addr = end; + unsigned long start_pfn, end_pfn; + pgd_t *pgd_base = swapper_pg_dir; +- int pgd_idx, pmd_idx, pte_ofs; ++ unsigned int pgd_idx, pmd_idx, pte_ofs; + unsigned long pfn; + pgd_t *pgd; ++ pud_t *pud; + pmd_t *pmd; + pte_t *pte; + unsigned pages_2m, pages_4k; +@@ -280,8 +281,13 @@ repeat: + pfn = start_pfn; + pgd_idx = pgd_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET); + pgd = pgd_base + pgd_idx; +- for (; pgd_idx < PTRS_PER_PGD; pgd++, pgd_idx++) { +- pmd = one_md_table_init(pgd); ++ for (; pgd_idx < PTRS_PER_PGD && pfn < max_low_pfn; pgd++, pgd_idx++) { ++ pud = pud_offset(pgd, 0); ++ pmd = pmd_offset(pud, 0); ++ ++#ifdef CONFIG_X86_PAE ++ paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT); ++#endif + + if (pfn >= end_pfn) + continue; +@@ -293,14 +299,13 @@ repeat: + #endif + for (; pmd_idx < PTRS_PER_PMD && pfn < end_pfn; + pmd++, pmd_idx++) { +- unsigned int addr = pfn * PAGE_SIZE + PAGE_OFFSET; ++ unsigned long address = pfn * PAGE_SIZE + PAGE_OFFSET; + + /* + * Map with big pages if possible, otherwise + * create normal page tables: + */ + if (use_pse) { +- unsigned int addr2; + pgprot_t prot = PAGE_KERNEL_LARGE; + /* + * first pass will use the same initial +@@ -310,11 +315,7 @@ repeat: + __pgprot(PTE_IDENT_ATTR | + _PAGE_PSE); + +- addr2 = (pfn + PTRS_PER_PTE-1) * PAGE_SIZE + +- PAGE_OFFSET + PAGE_SIZE-1; +- +- if (is_kernel_text(addr) || +- is_kernel_text(addr2)) ++ if (is_kernel_text(address, address + PMD_SIZE)) + prot = PAGE_KERNEL_LARGE_EXEC; + + pages_2m++; +@@ -331,7 +332,7 @@ repeat: + pte_ofs = pte_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET); + pte += pte_ofs; + for (; pte_ofs < PTRS_PER_PTE && pfn < end_pfn; +- pte++, pfn++, pte_ofs++, addr += PAGE_SIZE) { ++ pte++, pfn++, pte_ofs++, address += PAGE_SIZE) { + pgprot_t prot = PAGE_KERNEL; + /* + * first pass will use the same initial +@@ -339,7 +340,7 @@ repeat: + */ + pgprot_t init_prot = __pgprot(PTE_IDENT_ATTR); + +- if (is_kernel_text(addr)) ++ if (is_kernel_text(address, address + PAGE_SIZE)) + prot = PAGE_KERNEL_EXEC; + + pages_4k++; +@@ -465,7 +466,7 @@ void __init native_pagetable_setup_start(pgd_t *base) + + pud = pud_offset(pgd, va); + pmd = pmd_offset(pud, va); +- if (!pmd_present(*pmd)) ++ if (!pmd_present(*pmd) || pmd_huge(*pmd)) + break; + + pte = pte_offset_kernel(pmd, va); +@@ -517,12 +518,10 @@ void __init early_ioremap_page_table_range_init(void) + + static void __init pagetable_init(void) + { +- pgd_t *pgd_base = swapper_pg_dir; +- +- permanent_kmaps_init(pgd_base); ++ permanent_kmaps_init(swapper_pg_dir); + } + +-pteval_t __supported_pte_mask __read_mostly = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP); ++pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP); + EXPORT_SYMBOL_GPL(__supported_pte_mask); + + /* user-defined highmem size */ +@@ -734,6 +733,12 @@ void __init mem_init(void) + + pci_iommu_alloc(); + ++#ifdef CONFIG_PAX_PER_CPU_PGD ++ clone_pgd_range(get_cpu_pgd(0) + KERNEL_PGD_BOUNDARY, ++ swapper_pg_dir + KERNEL_PGD_BOUNDARY, ++ KERNEL_PGD_PTRS); ++#endif ++ + #ifdef CONFIG_FLATMEM + BUG_ON(!mem_map); + #endif +@@ -760,7 +765,7 @@ void __init mem_init(void) + reservedpages++; + + codesize = (unsigned long) &_etext - (unsigned long) &_text; +- datasize = (unsigned long) &_edata - (unsigned long) &_etext; ++ datasize = (unsigned long) &_edata - (unsigned long) &_sdata; + initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; + + printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, " +@@ -801,10 +806,10 @@ void __init mem_init(void) + ((unsigned long)&__init_end - + (unsigned long)&__init_begin) >> 10, + +- (unsigned long)&_etext, (unsigned long)&_edata, +- ((unsigned long)&_edata - (unsigned long)&_etext) >> 10, ++ (unsigned long)&_sdata, (unsigned long)&_edata, ++ ((unsigned long)&_edata - (unsigned long)&_sdata) >> 10, + +- (unsigned long)&_text, (unsigned long)&_etext, ++ ktla_ktva((unsigned long)&_text), ktla_ktva((unsigned long)&_etext), + ((unsigned long)&_etext - (unsigned long)&_text) >> 10); + + /* +@@ -882,6 +887,7 @@ void set_kernel_text_rw(void) + if (!kernel_set_to_readonly) + return; + ++ start = ktla_ktva(start); + pr_debug("Set kernel text: %lx - %lx for read write\n", + start, start+size); + +@@ -896,6 +902,7 @@ void set_kernel_text_ro(void) + if (!kernel_set_to_readonly) + return; + ++ start = ktla_ktva(start); + pr_debug("Set kernel text: %lx - %lx for read only\n", + start, start+size); + +@@ -924,6 +931,7 @@ void mark_rodata_ro(void) + unsigned long start = PFN_ALIGN(_text); + unsigned long size = PFN_ALIGN(_etext) - start; + ++ start = ktla_ktva(start); + set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT); + printk(KERN_INFO "Write protecting the kernel text: %luk\n", + size >> 10); +diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c +index fc18be0..e539653 100644 +--- a/arch/x86/mm/init_64.c ++++ b/arch/x86/mm/init_64.c +@@ -74,7 +74,7 @@ early_param("gbpages", parse_direct_gbpages_on); + * around without checking the pgd every time. + */ + +-pteval_t __supported_pte_mask __read_mostly = ~_PAGE_IOMAP; ++pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_IOMAP); + EXPORT_SYMBOL_GPL(__supported_pte_mask); + + int force_personality32; +@@ -107,12 +107,22 @@ void sync_global_pgds(unsigned long start, unsigned long end) + + for (address = start; address <= end; address += PGDIR_SIZE) { + const pgd_t *pgd_ref = pgd_offset_k(address); ++ ++#ifdef CONFIG_PAX_PER_CPU_PGD ++ unsigned long cpu; ++#else + struct page *page; ++#endif + + if (pgd_none(*pgd_ref)) + continue; + + spin_lock(&pgd_lock); ++ ++#ifdef CONFIG_PAX_PER_CPU_PGD ++ for (cpu = 0; cpu < nr_cpu_ids; ++cpu) { ++ pgd_t *pgd = pgd_offset_cpu(cpu, address); ++#else + list_for_each_entry(page, &pgd_list, lru) { + pgd_t *pgd; + spinlock_t *pgt_lock; +@@ -121,6 +131,7 @@ void sync_global_pgds(unsigned long start, unsigned long end) + /* the pgt_lock only for Xen */ + pgt_lock = &pgd_page_get_mm(page)->page_table_lock; + spin_lock(pgt_lock); ++#endif + + if (pgd_none(*pgd)) + set_pgd(pgd, *pgd_ref); +@@ -128,7 +139,10 @@ void sync_global_pgds(unsigned long start, unsigned long end) + BUG_ON(pgd_page_vaddr(*pgd) + != pgd_page_vaddr(*pgd_ref)); + ++#ifndef CONFIG_PAX_PER_CPU_PGD + spin_unlock(pgt_lock); ++#endif ++ + } + spin_unlock(&pgd_lock); + } +@@ -161,7 +175,7 @@ static pud_t *fill_pud(pgd_t *pgd, unsigned long vaddr) + { + if (pgd_none(*pgd)) { + pud_t *pud = (pud_t *)spp_getpage(); +- pgd_populate(&init_mm, pgd, pud); ++ pgd_populate_kernel(&init_mm, pgd, pud); + if (pud != pud_offset(pgd, 0)) + printk(KERN_ERR "PAGETABLE BUG #00! %p <-> %p\n", + pud, pud_offset(pgd, 0)); +@@ -173,7 +187,7 @@ static pmd_t *fill_pmd(pud_t *pud, unsigned long vaddr) + { + if (pud_none(*pud)) { + pmd_t *pmd = (pmd_t *) spp_getpage(); +- pud_populate(&init_mm, pud, pmd); ++ pud_populate_kernel(&init_mm, pud, pmd); + if (pmd != pmd_offset(pud, 0)) + printk(KERN_ERR "PAGETABLE BUG #01! %p <-> %p\n", + pmd, pmd_offset(pud, 0)); +@@ -202,7 +216,9 @@ void set_pte_vaddr_pud(pud_t *pud_page, unsigned long vaddr, pte_t new_pte) + pmd = fill_pmd(pud, vaddr); + pte = fill_pte(pmd, vaddr); + ++ pax_open_kernel(); + set_pte(pte, new_pte); ++ pax_close_kernel(); + + /* + * It's enough to flush this one mapping. +@@ -261,14 +277,12 @@ static void __init __init_extra_mapping(unsigned long phys, unsigned long size, + pgd = pgd_offset_k((unsigned long)__va(phys)); + if (pgd_none(*pgd)) { + pud = (pud_t *) spp_getpage(); +- set_pgd(pgd, __pgd(__pa(pud) | _KERNPG_TABLE | +- _PAGE_USER)); ++ set_pgd(pgd, __pgd(__pa(pud) | _PAGE_TABLE)); + } + pud = pud_offset(pgd, (unsigned long)__va(phys)); + if (pud_none(*pud)) { + pmd = (pmd_t *) spp_getpage(); +- set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE | +- _PAGE_USER)); ++ set_pud(pud, __pud(__pa(pmd) | _PAGE_TABLE)); + } + pmd = pmd_offset(pud, phys); + BUG_ON(!pmd_none(*pmd)); +@@ -329,7 +343,7 @@ static __ref void *alloc_low_page(unsigned long *phys) + if (pfn >= pgt_buf_top) + panic("alloc_low_page: ran out of memory"); + +- adr = early_memremap(pfn * PAGE_SIZE, PAGE_SIZE); ++ adr = (void __force_kernel *)early_memremap(pfn * PAGE_SIZE, PAGE_SIZE); + clear_page(adr); + *phys = pfn * PAGE_SIZE; + return adr; +@@ -345,7 +359,7 @@ static __ref void *map_low_page(void *virt) + + phys = __pa(virt); + left = phys & (PAGE_SIZE - 1); +- adr = early_memremap(phys & PAGE_MASK, PAGE_SIZE); ++ adr = (void __force_kernel *)early_memremap(phys & PAGE_MASK, PAGE_SIZE); + adr = (void *)(((unsigned long)adr) | left); + + return adr; +@@ -545,7 +559,7 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end, + unmap_low_page(pmd); + + spin_lock(&init_mm.page_table_lock); +- pud_populate(&init_mm, pud, __va(pmd_phys)); ++ pud_populate_kernel(&init_mm, pud, __va(pmd_phys)); + spin_unlock(&init_mm.page_table_lock); + } + __flush_tlb_all(); +@@ -591,7 +605,7 @@ kernel_physical_mapping_init(unsigned long start, + unmap_low_page(pud); + + spin_lock(&init_mm.page_table_lock); +- pgd_populate(&init_mm, pgd, __va(pud_phys)); ++ pgd_populate_kernel(&init_mm, pgd, __va(pud_phys)); + spin_unlock(&init_mm.page_table_lock); + pgd_changed = true; + } +@@ -683,6 +697,12 @@ void __init mem_init(void) + + pci_iommu_alloc(); + ++#ifdef CONFIG_PAX_PER_CPU_PGD ++ clone_pgd_range(get_cpu_pgd(0) + KERNEL_PGD_BOUNDARY, ++ swapper_pg_dir + KERNEL_PGD_BOUNDARY, ++ KERNEL_PGD_PTRS); ++#endif ++ + /* clear_bss() already clear the empty_zero_page */ + + reservedpages = 0; +@@ -843,8 +863,8 @@ int kern_addr_valid(unsigned long addr) + static struct vm_area_struct gate_vma = { + .vm_start = VSYSCALL_START, + .vm_end = VSYSCALL_START + (VSYSCALL_MAPPED_PAGES * PAGE_SIZE), +- .vm_page_prot = PAGE_READONLY_EXEC, +- .vm_flags = VM_READ | VM_EXEC ++ .vm_page_prot = PAGE_READONLY, ++ .vm_flags = VM_READ + }; + + struct vm_area_struct *get_gate_vma(struct mm_struct *mm) +@@ -878,7 +898,7 @@ int in_gate_area_no_mm(unsigned long addr) + + const char *arch_vma_name(struct vm_area_struct *vma) + { +- if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso) ++ if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso) + return "[vdso]"; + if (vma == &gate_vma) + return "[vsyscall]"; +diff --git a/arch/x86/mm/iomap_32.c b/arch/x86/mm/iomap_32.c +index 7b179b4..6bd1777 100644 +--- a/arch/x86/mm/iomap_32.c ++++ b/arch/x86/mm/iomap_32.c +@@ -64,7 +64,11 @@ void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot) + type = kmap_atomic_idx_push(); + idx = type + KM_TYPE_NR * smp_processor_id(); + vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); ++ ++ pax_open_kernel(); + set_pte(kmap_pte - idx, pfn_pte(pfn, prot)); ++ pax_close_kernel(); ++ + arch_flush_lazy_mmu_mode(); + + return (void *)vaddr; +diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c +index be1ef57..55f0160 100644 +--- a/arch/x86/mm/ioremap.c ++++ b/arch/x86/mm/ioremap.c +@@ -97,7 +97,7 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr, + for (pfn = phys_addr >> PAGE_SHIFT; pfn <= last_pfn; pfn++) { + int is_ram = page_is_ram(pfn); + +- if (is_ram && pfn_valid(pfn) && !PageReserved(pfn_to_page(pfn))) ++ if (is_ram && pfn_valid(pfn) && (pfn >= 0x100 || !PageReserved(pfn_to_page(pfn)))) + return NULL; + WARN_ON_ONCE(is_ram); + } +@@ -315,6 +315,9 @@ void *xlate_dev_mem_ptr(unsigned long phys) + + /* If page is RAM, we can use __va. Otherwise ioremap and unmap. */ + if (page_is_ram(start >> PAGE_SHIFT)) ++#ifdef CONFIG_HIGHMEM ++ if ((start >> PAGE_SHIFT) < max_low_pfn) ++#endif + return __va(phys); + + addr = (void __force *)ioremap_cache(start, PAGE_SIZE); +@@ -344,7 +347,7 @@ static int __init early_ioremap_debug_setup(char *str) + early_param("early_ioremap_debug", early_ioremap_debug_setup); + + static __initdata int after_paging_init; +-static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss; ++static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __read_only __aligned(PAGE_SIZE); + + static inline pmd_t * __init early_ioremap_pmd(unsigned long addr) + { +@@ -381,8 +384,7 @@ void __init early_ioremap_init(void) + slot_virt[i] = __fix_to_virt(FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*i); + + pmd = early_ioremap_pmd(fix_to_virt(FIX_BTMAP_BEGIN)); +- memset(bm_pte, 0, sizeof(bm_pte)); +- pmd_populate_kernel(&init_mm, pmd, bm_pte); ++ pmd_populate_user(&init_mm, pmd, bm_pte); + + /* + * The boot-ioremap range spans multiple pmds, for which +diff --git a/arch/x86/mm/kmemcheck/kmemcheck.c b/arch/x86/mm/kmemcheck/kmemcheck.c +index d87dd6d..bf3fa66 100644 +--- a/arch/x86/mm/kmemcheck/kmemcheck.c ++++ b/arch/x86/mm/kmemcheck/kmemcheck.c +@@ -622,9 +622,9 @@ bool kmemcheck_fault(struct pt_regs *regs, unsigned long address, + * memory (e.g. tracked pages)? For now, we need this to avoid + * invoking kmemcheck for PnP BIOS calls. + */ +- if (regs->flags & X86_VM_MASK) ++ if (v8086_mode(regs)) + return false; +- if (regs->cs != __KERNEL_CS) ++ if (regs->cs != __KERNEL_CS && regs->cs != __KERNEXEC_KERNEL_CS) + return false; + + pte = kmemcheck_pte_lookup(address); +diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c +index 845df68..1d8d29f 100644 +--- a/arch/x86/mm/mmap.c ++++ b/arch/x86/mm/mmap.c +@@ -52,7 +52,7 @@ static unsigned int stack_maxrandom_size(void) + * Leave an at least ~128 MB hole with possible stack randomization. + */ + #define MIN_GAP (128*1024*1024UL + stack_maxrandom_size()) +-#define MAX_GAP (TASK_SIZE/6*5) ++#define MAX_GAP (pax_task_size/6*5) + + static int mmap_is_legacy(void) + { +@@ -82,27 +82,40 @@ static unsigned long mmap_rnd(void) + return rnd << PAGE_SHIFT; + } + +-static unsigned long mmap_base(void) ++static unsigned long mmap_base(struct mm_struct *mm) + { + unsigned long gap = rlimit(RLIMIT_STACK); ++ unsigned long pax_task_size = TASK_SIZE; ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (mm->pax_flags & MF_PAX_SEGMEXEC) ++ pax_task_size = SEGMEXEC_TASK_SIZE; ++#endif + + if (gap < MIN_GAP) + gap = MIN_GAP; + else if (gap > MAX_GAP) + gap = MAX_GAP; + +- return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd()); ++ return PAGE_ALIGN(pax_task_size - gap - mmap_rnd()); + } + + /* + * Bottom-up (legacy) layout on X86_32 did not support randomization, X86_64 + * does, but not when emulating X86_32 + */ +-static unsigned long mmap_legacy_base(void) ++static unsigned long mmap_legacy_base(struct mm_struct *mm) + { +- if (mmap_is_ia32()) ++ if (mmap_is_ia32()) { ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (mm->pax_flags & MF_PAX_SEGMEXEC) ++ return SEGMEXEC_TASK_UNMAPPED_BASE; ++ else ++#endif ++ + return TASK_UNMAPPED_BASE; +- else ++ } else + return TASK_UNMAPPED_BASE + mmap_rnd(); + } + +@@ -113,11 +126,23 @@ static unsigned long mmap_legacy_base(void) + void arch_pick_mmap_layout(struct mm_struct *mm) + { + if (mmap_is_legacy()) { +- mm->mmap_base = mmap_legacy_base(); ++ mm->mmap_base = mmap_legacy_base(mm); ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ mm->mmap_base += mm->delta_mmap; ++#endif ++ + mm->get_unmapped_area = arch_get_unmapped_area; + mm->unmap_area = arch_unmap_area; + } else { +- mm->mmap_base = mmap_base(); ++ mm->mmap_base = mmap_base(mm); ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; ++#endif ++ + mm->get_unmapped_area = arch_get_unmapped_area_topdown; + mm->unmap_area = arch_unmap_area_topdown; + } +diff --git a/arch/x86/mm/mmio-mod.c b/arch/x86/mm/mmio-mod.c +index dc0b727..dc9d71a 100644 +--- a/arch/x86/mm/mmio-mod.c ++++ b/arch/x86/mm/mmio-mod.c +@@ -194,7 +194,7 @@ static void pre(struct kmmio_probe *p, struct pt_regs *regs, + break; + default: + { +- unsigned char *ip = (unsigned char *)instptr; ++ unsigned char *ip = (unsigned char *)ktla_ktva(instptr); + my_trace->opcode = MMIO_UNKNOWN_OP; + my_trace->width = 0; + my_trace->value = (*ip) << 16 | *(ip + 1) << 8 | +@@ -234,7 +234,7 @@ static void post(struct kmmio_probe *p, unsigned long condition, + static void ioremap_trace_core(resource_size_t offset, unsigned long size, + void __iomem *addr) + { +- static atomic_t next_id; ++ static atomic_unchecked_t next_id; + struct remap_trace *trace = kmalloc(sizeof(*trace), GFP_KERNEL); + /* These are page-unaligned. */ + struct mmiotrace_map map = { +@@ -258,7 +258,7 @@ static void ioremap_trace_core(resource_size_t offset, unsigned long size, + .private = trace + }, + .phys = offset, +- .id = atomic_inc_return(&next_id) ++ .id = atomic_inc_return_unchecked(&next_id) + }; + map.map_id = trace->id; + +diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c +index b008656..773eac2 100644 +--- a/arch/x86/mm/pageattr-test.c ++++ b/arch/x86/mm/pageattr-test.c +@@ -36,7 +36,7 @@ enum { + + static int pte_testbit(pte_t pte) + { +- return pte_flags(pte) & _PAGE_UNUSED1; ++ return pte_flags(pte) & _PAGE_CPA_TEST; + } + + struct split_state { +diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c +index e1ebde3..b1e1db38 100644 +--- a/arch/x86/mm/pageattr.c ++++ b/arch/x86/mm/pageattr.c +@@ -261,7 +261,7 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address, + */ + #ifdef CONFIG_PCI_BIOS + if (pcibios_enabled && within(pfn, BIOS_BEGIN >> PAGE_SHIFT, BIOS_END >> PAGE_SHIFT)) +- pgprot_val(forbidden) |= _PAGE_NX; ++ pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask; + #endif + + /* +@@ -269,9 +269,10 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address, + * Does not cover __inittext since that is gone later on. On + * 64bit we do not enforce !NX on the low mapping + */ +- if (within(address, (unsigned long)_text, (unsigned long)_etext)) +- pgprot_val(forbidden) |= _PAGE_NX; ++ if (within(address, ktla_ktva((unsigned long)_text), ktla_ktva((unsigned long)_etext))) ++ pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask; + ++#ifdef CONFIG_DEBUG_RODATA + /* + * The .rodata section needs to be read-only. Using the pfn + * catches all aliases. +@@ -279,6 +280,7 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address, + if (within(pfn, __pa((unsigned long)__start_rodata) >> PAGE_SHIFT, + __pa((unsigned long)__end_rodata) >> PAGE_SHIFT)) + pgprot_val(forbidden) |= _PAGE_RW; ++#endif + + #if defined(CONFIG_X86_64) && defined(CONFIG_DEBUG_RODATA) + /* +@@ -317,6 +319,13 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address, + } + #endif + ++#ifdef CONFIG_PAX_KERNEXEC ++ if (within(pfn, __pa((unsigned long)&_text), __pa((unsigned long)&_sdata))) { ++ pgprot_val(forbidden) |= _PAGE_RW; ++ pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask; ++ } ++#endif ++ + prot = __pgprot(pgprot_val(prot) & ~pgprot_val(forbidden)); + + return prot; +@@ -369,23 +378,37 @@ EXPORT_SYMBOL_GPL(lookup_address); + static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte) + { + /* change init_mm */ ++ pax_open_kernel(); + set_pte_atomic(kpte, pte); ++ + #ifdef CONFIG_X86_32 + if (!SHARED_KERNEL_PMD) { ++ ++#ifdef CONFIG_PAX_PER_CPU_PGD ++ unsigned long cpu; ++#else + struct page *page; ++#endif + ++#ifdef CONFIG_PAX_PER_CPU_PGD ++ for (cpu = 0; cpu < nr_cpu_ids; ++cpu) { ++ pgd_t *pgd = get_cpu_pgd(cpu); ++#else + list_for_each_entry(page, &pgd_list, lru) { +- pgd_t *pgd; ++ pgd_t *pgd = (pgd_t *)page_address(page); ++#endif ++ + pud_t *pud; + pmd_t *pmd; + +- pgd = (pgd_t *)page_address(page) + pgd_index(address); ++ pgd += pgd_index(address); + pud = pud_offset(pgd, address); + pmd = pmd_offset(pud, address); + set_pte_atomic((pte_t *)pmd, pte); + } + } + #endif ++ pax_close_kernel(); + } + + static int +diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c +index f6ff57b..481690f 100644 +--- a/arch/x86/mm/pat.c ++++ b/arch/x86/mm/pat.c +@@ -361,7 +361,7 @@ int free_memtype(u64 start, u64 end) + + if (!entry) { + printk(KERN_INFO "%s:%d freeing invalid memtype %Lx-%Lx\n", +- current->comm, current->pid, start, end); ++ current->comm, task_pid_nr(current), start, end); + return -EINVAL; + } + +@@ -492,8 +492,8 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size) + while (cursor < to) { + if (!devmem_is_allowed(pfn)) { + printk(KERN_INFO +- "Program %s tried to access /dev/mem between %Lx->%Lx.\n", +- current->comm, from, to); ++ "Program %s tried to access /dev/mem between %Lx->%Lx (%Lx).\n", ++ current->comm, from, to, cursor); + return 0; + } + cursor += PAGE_SIZE; +@@ -557,7 +557,7 @@ int kernel_map_sync_memtype(u64 base, unsigned long size, unsigned long flags) + printk(KERN_INFO + "%s:%d ioremap_change_attr failed %s " + "for %Lx-%Lx\n", +- current->comm, current->pid, ++ current->comm, task_pid_nr(current), + cattr_name(flags), + base, (unsigned long long)(base + size)); + return -EINVAL; +@@ -593,7 +593,7 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot, + if (want_flags != flags) { + printk(KERN_WARNING + "%s:%d map pfn RAM range req %s for %Lx-%Lx, got %s\n", +- current->comm, current->pid, ++ current->comm, task_pid_nr(current), + cattr_name(want_flags), + (unsigned long long)paddr, + (unsigned long long)(paddr + size), +@@ -615,7 +615,7 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot, + free_memtype(paddr, paddr + size); + printk(KERN_ERR "%s:%d map pfn expected mapping type %s" + " for %Lx-%Lx, got %s\n", +- current->comm, current->pid, ++ current->comm, task_pid_nr(current), + cattr_name(want_flags), + (unsigned long long)paddr, + (unsigned long long)(paddr + size), +diff --git a/arch/x86/mm/pf_in.c b/arch/x86/mm/pf_in.c +index 9f0614d..92ae64a 100644 +--- a/arch/x86/mm/pf_in.c ++++ b/arch/x86/mm/pf_in.c +@@ -148,7 +148,7 @@ enum reason_type get_ins_type(unsigned long ins_addr) + int i; + enum reason_type rv = OTHERS; + +- p = (unsigned char *)ins_addr; ++ p = (unsigned char *)ktla_ktva(ins_addr); + p += skip_prefix(p, &prf); + p += get_opcode(p, &opcode); + +@@ -168,7 +168,7 @@ static unsigned int get_ins_reg_width(unsigned long ins_addr) + struct prefix_bits prf; + int i; + +- p = (unsigned char *)ins_addr; ++ p = (unsigned char *)ktla_ktva(ins_addr); + p += skip_prefix(p, &prf); + p += get_opcode(p, &opcode); + +@@ -191,7 +191,7 @@ unsigned int get_ins_mem_width(unsigned long ins_addr) + struct prefix_bits prf; + int i; + +- p = (unsigned char *)ins_addr; ++ p = (unsigned char *)ktla_ktva(ins_addr); + p += skip_prefix(p, &prf); + p += get_opcode(p, &opcode); + +@@ -415,7 +415,7 @@ unsigned long get_ins_reg_val(unsigned long ins_addr, struct pt_regs *regs) + struct prefix_bits prf; + int i; + +- p = (unsigned char *)ins_addr; ++ p = (unsigned char *)ktla_ktva(ins_addr); + p += skip_prefix(p, &prf); + p += get_opcode(p, &opcode); + for (i = 0; i < ARRAY_SIZE(reg_rop); i++) +@@ -470,7 +470,7 @@ unsigned long get_ins_imm_val(unsigned long ins_addr) + struct prefix_bits prf; + int i; + +- p = (unsigned char *)ins_addr; ++ p = (unsigned char *)ktla_ktva(ins_addr); + p += skip_prefix(p, &prf); + p += get_opcode(p, &opcode); + for (i = 0; i < ARRAY_SIZE(imm_wop); i++) +diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c +index 8573b83..4f3ed7e 100644 +--- a/arch/x86/mm/pgtable.c ++++ b/arch/x86/mm/pgtable.c +@@ -84,10 +84,64 @@ static inline void pgd_list_del(pgd_t *pgd) + list_del(&page->lru); + } + +-#define UNSHARED_PTRS_PER_PGD \ +- (SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD) ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++pgdval_t clone_pgd_mask __read_only = ~_PAGE_PRESENT; + ++void __shadow_user_pgds(pgd_t *dst, const pgd_t *src) ++{ ++ unsigned int count = USER_PGD_PTRS; + ++ while (count--) ++ *dst++ = __pgd((pgd_val(*src++) | (_PAGE_NX & __supported_pte_mask)) & ~_PAGE_USER); ++} ++#endif ++ ++#ifdef CONFIG_PAX_PER_CPU_PGD ++void __clone_user_pgds(pgd_t *dst, const pgd_t *src) ++{ ++ unsigned int count = USER_PGD_PTRS; ++ ++ while (count--) { ++ pgd_t pgd; ++ ++#ifdef CONFIG_X86_64 ++ pgd = __pgd(pgd_val(*src++) | _PAGE_USER); ++#else ++ pgd = *src++; ++#endif ++ ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++ pgd = __pgd(pgd_val(pgd) & clone_pgd_mask); ++#endif ++ ++ *dst++ = pgd; ++ } ++ ++} ++#endif ++ ++#ifdef CONFIG_X86_64 ++#define pxd_t pud_t ++#define pyd_t pgd_t ++#define paravirt_release_pxd(pfn) paravirt_release_pud(pfn) ++#define pxd_free(mm, pud) pud_free((mm), (pud)) ++#define pyd_populate(mm, pgd, pud) pgd_populate((mm), (pgd), (pud)) ++#define pyd_offset(mm, address) pgd_offset((mm), (address)) ++#define PYD_SIZE PGDIR_SIZE ++#else ++#define pxd_t pmd_t ++#define pyd_t pud_t ++#define paravirt_release_pxd(pfn) paravirt_release_pmd(pfn) ++#define pxd_free(mm, pud) pmd_free((mm), (pud)) ++#define pyd_populate(mm, pgd, pud) pud_populate((mm), (pgd), (pud)) ++#define pyd_offset(mm, address) pud_offset((mm), (address)) ++#define PYD_SIZE PUD_SIZE ++#endif ++ ++#ifdef CONFIG_PAX_PER_CPU_PGD ++static inline void pgd_ctor(struct mm_struct *mm, pgd_t *pgd) {} ++static inline void pgd_dtor(pgd_t *pgd) {} ++#else + static void pgd_set_mm(pgd_t *pgd, struct mm_struct *mm) + { + BUILD_BUG_ON(sizeof(virt_to_page(pgd)->index) < sizeof(mm)); +@@ -128,6 +182,7 @@ static void pgd_dtor(pgd_t *pgd) + pgd_list_del(pgd); + spin_unlock(&pgd_lock); + } ++#endif + + /* + * List of all pgd's needed for non-PAE so it can invalidate entries +@@ -140,7 +195,7 @@ static void pgd_dtor(pgd_t *pgd) + * -- wli + */ + +-#ifdef CONFIG_X86_PAE ++#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE) + /* + * In PAE mode, we need to do a cr3 reload (=tlb flush) when + * updating the top-level pagetable entries to guarantee the +@@ -152,7 +207,7 @@ static void pgd_dtor(pgd_t *pgd) + * not shared between pagetables (!SHARED_KERNEL_PMDS), we allocate + * and initialize the kernel pmds here. + */ +-#define PREALLOCATED_PMDS UNSHARED_PTRS_PER_PGD ++#define PREALLOCATED_PXDS (SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD) + + void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd) + { +@@ -170,36 +225,38 @@ void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd) + */ + flush_tlb_mm(mm); + } ++#elif defined(CONFIG_X86_64) && defined(CONFIG_PAX_PER_CPU_PGD) ++#define PREALLOCATED_PXDS USER_PGD_PTRS + #else /* !CONFIG_X86_PAE */ + + /* No need to prepopulate any pagetable entries in non-PAE modes. */ +-#define PREALLOCATED_PMDS 0 ++#define PREALLOCATED_PXDS 0 + + #endif /* CONFIG_X86_PAE */ + +-static void free_pmds(pmd_t *pmds[]) ++static void free_pxds(pxd_t *pxds[]) + { + int i; + +- for(i = 0; i < PREALLOCATED_PMDS; i++) +- if (pmds[i]) +- free_page((unsigned long)pmds[i]); ++ for(i = 0; i < PREALLOCATED_PXDS; i++) ++ if (pxds[i]) ++ free_page((unsigned long)pxds[i]); + } + +-static int preallocate_pmds(pmd_t *pmds[]) ++static int preallocate_pxds(pxd_t *pxds[]) + { + int i; + bool failed = false; + +- for(i = 0; i < PREALLOCATED_PMDS; i++) { +- pmd_t *pmd = (pmd_t *)__get_free_page(PGALLOC_GFP); +- if (pmd == NULL) ++ for(i = 0; i < PREALLOCATED_PXDS; i++) { ++ pxd_t *pxd = (pxd_t *)__get_free_page(PGALLOC_GFP); ++ if (pxd == NULL) + failed = true; +- pmds[i] = pmd; ++ pxds[i] = pxd; + } + + if (failed) { +- free_pmds(pmds); ++ free_pxds(pxds); + return -ENOMEM; + } + +@@ -212,51 +269,55 @@ static int preallocate_pmds(pmd_t *pmds[]) + * preallocate which never got a corresponding vma will need to be + * freed manually. + */ +-static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp) ++static void pgd_mop_up_pxds(struct mm_struct *mm, pgd_t *pgdp) + { + int i; + +- for(i = 0; i < PREALLOCATED_PMDS; i++) { ++ for(i = 0; i < PREALLOCATED_PXDS; i++) { + pgd_t pgd = pgdp[i]; + + if (pgd_val(pgd) != 0) { +- pmd_t *pmd = (pmd_t *)pgd_page_vaddr(pgd); ++ pxd_t *pxd = (pxd_t *)pgd_page_vaddr(pgd); + +- pgdp[i] = native_make_pgd(0); ++ set_pgd(pgdp + i, native_make_pgd(0)); + +- paravirt_release_pmd(pgd_val(pgd) >> PAGE_SHIFT); +- pmd_free(mm, pmd); ++ paravirt_release_pxd(pgd_val(pgd) >> PAGE_SHIFT); ++ pxd_free(mm, pxd); + } + } + } + +-static void pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmds[]) ++static void pgd_prepopulate_pxd(struct mm_struct *mm, pgd_t *pgd, pxd_t *pxds[]) + { +- pud_t *pud; ++ pyd_t *pyd; + unsigned long addr; + int i; + +- if (PREALLOCATED_PMDS == 0) /* Work around gcc-3.4.x bug */ ++ if (PREALLOCATED_PXDS == 0) /* Work around gcc-3.4.x bug */ + return; + +- pud = pud_offset(pgd, 0); ++#ifdef CONFIG_X86_64 ++ pyd = pyd_offset(mm, 0L); ++#else ++ pyd = pyd_offset(pgd, 0L); ++#endif + +- for (addr = i = 0; i < PREALLOCATED_PMDS; +- i++, pud++, addr += PUD_SIZE) { +- pmd_t *pmd = pmds[i]; ++ for (addr = i = 0; i < PREALLOCATED_PXDS; ++ i++, pyd++, addr += PYD_SIZE) { ++ pxd_t *pxd = pxds[i]; + + if (i >= KERNEL_PGD_BOUNDARY) +- memcpy(pmd, (pmd_t *)pgd_page_vaddr(swapper_pg_dir[i]), +- sizeof(pmd_t) * PTRS_PER_PMD); ++ memcpy(pxd, (pxd_t *)pgd_page_vaddr(swapper_pg_dir[i]), ++ sizeof(pxd_t) * PTRS_PER_PMD); + +- pud_populate(mm, pud, pmd); ++ pyd_populate(mm, pyd, pxd); + } + } + + pgd_t *pgd_alloc(struct mm_struct *mm) + { + pgd_t *pgd; +- pmd_t *pmds[PREALLOCATED_PMDS]; ++ pxd_t *pxds[PREALLOCATED_PXDS]; + + pgd = (pgd_t *)__get_free_page(PGALLOC_GFP); + +@@ -265,11 +326,11 @@ pgd_t *pgd_alloc(struct mm_struct *mm) + + mm->pgd = pgd; + +- if (preallocate_pmds(pmds) != 0) ++ if (preallocate_pxds(pxds) != 0) + goto out_free_pgd; + + if (paravirt_pgd_alloc(mm) != 0) +- goto out_free_pmds; ++ goto out_free_pxds; + + /* + * Make sure that pre-populating the pmds is atomic with +@@ -279,14 +340,14 @@ pgd_t *pgd_alloc(struct mm_struct *mm) + spin_lock(&pgd_lock); + + pgd_ctor(mm, pgd); +- pgd_prepopulate_pmd(mm, pgd, pmds); ++ pgd_prepopulate_pxd(mm, pgd, pxds); + + spin_unlock(&pgd_lock); + + return pgd; + +-out_free_pmds: +- free_pmds(pmds); ++out_free_pxds: ++ free_pxds(pxds); + out_free_pgd: + free_page((unsigned long)pgd); + out: +@@ -295,7 +356,7 @@ out: + + void pgd_free(struct mm_struct *mm, pgd_t *pgd) + { +- pgd_mop_up_pmds(mm, pgd); ++ pgd_mop_up_pxds(mm, pgd); + pgd_dtor(pgd); + paravirt_pgd_free(mm, pgd); + free_page((unsigned long)pgd); +diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c +index a69bcb8..19068ab 100644 +--- a/arch/x86/mm/pgtable_32.c ++++ b/arch/x86/mm/pgtable_32.c +@@ -47,10 +47,13 @@ void set_pte_vaddr(unsigned long vaddr, pte_t pteval) + return; + } + pte = pte_offset_kernel(pmd, vaddr); ++ ++ pax_open_kernel(); + if (pte_val(pteval)) + set_pte_at(&init_mm, vaddr, pte, pteval); + else + pte_clear(&init_mm, vaddr, pte); ++ pax_close_kernel(); + + /* + * It's enough to flush this one mapping. +diff --git a/arch/x86/mm/setup_nx.c b/arch/x86/mm/setup_nx.c +index 410531d..0f16030 100644 +--- a/arch/x86/mm/setup_nx.c ++++ b/arch/x86/mm/setup_nx.c +@@ -5,8 +5,10 @@ + #include <asm/pgtable.h> + #include <asm/proto.h> + ++#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) + static int disable_nx __cpuinitdata; + ++#ifndef CONFIG_PAX_PAGEEXEC + /* + * noexec = on|off + * +@@ -28,12 +30,17 @@ static int __init noexec_setup(char *str) + return 0; + } + early_param("noexec", noexec_setup); ++#endif ++ ++#endif + + void __cpuinit x86_configure_nx(void) + { ++#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) + if (cpu_has_nx && !disable_nx) + __supported_pte_mask |= _PAGE_NX; + else ++#endif + __supported_pte_mask &= ~_PAGE_NX; + } + +diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c +index d6c0418..06a0ad5 100644 +--- a/arch/x86/mm/tlb.c ++++ b/arch/x86/mm/tlb.c +@@ -65,7 +65,11 @@ void leave_mm(int cpu) + BUG(); + cpumask_clear_cpu(cpu, + mm_cpumask(percpu_read(cpu_tlbstate.active_mm))); ++ ++#ifndef CONFIG_PAX_PER_CPU_PGD + load_cr3(swapper_pg_dir); ++#endif ++ + } + EXPORT_SYMBOL_GPL(leave_mm); + +diff --git a/arch/x86/net/bpf_jit.S b/arch/x86/net/bpf_jit.S +index 877b9a1..a8ecf42 100644 +--- a/arch/x86/net/bpf_jit.S ++++ b/arch/x86/net/bpf_jit.S +@@ -9,6 +9,7 @@ + */ + #include <linux/linkage.h> + #include <asm/dwarf2.h> ++#include <asm/alternative-asm.h> + + /* + * Calling convention : +@@ -35,6 +36,7 @@ sk_load_word_positive_offset: + jle bpf_slow_path_word + mov (SKBDATA,%rsi),%eax + bswap %eax /* ntohl() */ ++ pax_force_retaddr + ret + + sk_load_half: +@@ -52,6 +54,7 @@ sk_load_half_positive_offset: + jle bpf_slow_path_half + movzwl (SKBDATA,%rsi),%eax + rol $8,%ax # ntohs() ++ pax_force_retaddr + ret + + sk_load_byte: +@@ -66,6 +69,7 @@ sk_load_byte_positive_offset: + cmp %esi,%r9d /* if (offset >= hlen) goto bpf_slow_path_byte */ + jle bpf_slow_path_byte + movzbl (SKBDATA,%rsi),%eax ++ pax_force_retaddr + ret + + /** +@@ -87,6 +91,7 @@ sk_load_byte_msh_positive_offset: + movzbl (SKBDATA,%rsi),%ebx + and $15,%bl + shl $2,%bl ++ pax_force_retaddr + ret + + /* rsi contains offset and can be scratched */ +@@ -109,6 +114,7 @@ bpf_slow_path_word: + js bpf_error + mov -12(%rbp),%eax + bswap %eax ++ pax_force_retaddr + ret + + bpf_slow_path_half: +@@ -117,12 +123,14 @@ bpf_slow_path_half: + mov -12(%rbp),%ax + rol $8,%ax + movzwl %ax,%eax ++ pax_force_retaddr + ret + + bpf_slow_path_byte: + bpf_slow_path_common(1) + js bpf_error + movzbl -12(%rbp),%eax ++ pax_force_retaddr + ret + + bpf_slow_path_byte_msh: +@@ -133,6 +141,7 @@ bpf_slow_path_byte_msh: + and $15,%al + shl $2,%al + xchg %eax,%ebx ++ pax_force_retaddr + ret + + #define sk_negative_common(SIZE) \ +@@ -157,6 +166,7 @@ sk_load_word_negative_offset: + sk_negative_common(4) + mov (%rax), %eax + bswap %eax ++ pax_force_retaddr + ret + + bpf_slow_path_half_neg: +@@ -168,6 +178,7 @@ sk_load_half_negative_offset: + mov (%rax),%ax + rol $8,%ax + movzwl %ax,%eax ++ pax_force_retaddr + ret + + bpf_slow_path_byte_neg: +@@ -177,6 +188,7 @@ sk_load_byte_negative_offset: + .globl sk_load_byte_negative_offset + sk_negative_common(1) + movzbl (%rax), %eax ++ pax_force_retaddr + ret + + bpf_slow_path_byte_msh_neg: +@@ -190,6 +202,7 @@ sk_load_byte_msh_negative_offset: + and $15,%al + shl $2,%al + xchg %eax,%ebx ++ pax_force_retaddr + ret + + bpf_error: +@@ -197,4 +210,5 @@ bpf_error: + xor %eax,%eax + mov -8(%rbp),%rbx + leaveq ++ pax_force_retaddr + ret +diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c +index 0597f95..a12c36e 100644 +--- a/arch/x86/net/bpf_jit_comp.c ++++ b/arch/x86/net/bpf_jit_comp.c +@@ -120,6 +120,11 @@ static inline void bpf_flush_icache(void *start, void *end) + set_fs(old_fs); + } + ++struct bpf_jit_work { ++ struct work_struct work; ++ void *image; ++}; ++ + #define CHOOSE_LOAD_FUNC(K, func) \ + ((int)K < 0 ? ((int)K >= SKF_LL_OFF ? func##_negative_offset : func) : func##_positive_offset) + +@@ -146,6 +151,10 @@ void bpf_jit_compile(struct sk_filter *fp) + if (addrs == NULL) + return; + ++ fp->work = kmalloc(sizeof(*fp->work), GFP_KERNEL); ++ if (!fp->work) ++ goto out; ++ + /* Before first pass, make a rough estimation of addrs[] + * each bpf instruction is translated to less than 64 bytes + */ +@@ -589,17 +598,18 @@ cond_branch: f_offset = addrs[i + filter[i].jf] - addrs[i]; + break; + default: + /* hmm, too complex filter, give up with jit compiler */ +- goto out; ++ goto error; + } + ilen = prog - temp; + if (image) { + if (unlikely(proglen + ilen > oldproglen)) { + pr_err("bpb_jit_compile fatal error\n"); +- kfree(addrs); +- module_free(NULL, image); +- return; ++ module_free_exec(NULL, image); ++ goto error; + } ++ pax_open_kernel(); + memcpy(image + proglen, temp, ilen); ++ pax_close_kernel(); + } + proglen += ilen; + addrs[i] = proglen; +@@ -620,11 +630,9 @@ cond_branch: f_offset = addrs[i + filter[i].jf] - addrs[i]; + break; + } + if (proglen == oldproglen) { +- image = module_alloc(max_t(unsigned int, +- proglen, +- sizeof(struct work_struct))); ++ image = module_alloc_exec(proglen); + if (!image) +- goto out; ++ goto error; + } + oldproglen = proglen; + } +@@ -640,7 +648,10 @@ cond_branch: f_offset = addrs[i + filter[i].jf] - addrs[i]; + bpf_flush_icache(image, image + proglen); + + fp->bpf_func = (void *)image; +- } ++ } else ++error: ++ kfree(fp->work); ++ + out: + kfree(addrs); + return; +@@ -648,18 +659,20 @@ out: + + static void jit_free_defer(struct work_struct *arg) + { +- module_free(NULL, arg); ++ module_free_exec(NULL, ((struct bpf_jit_work *)arg)->image); ++ kfree(arg); + } + + /* run from softirq, we must use a work_struct to call +- * module_free() from process context ++ * module_free_exec() from process context + */ + void bpf_jit_free(struct sk_filter *fp) + { + if (fp->bpf_func != sk_run_filter) { +- struct work_struct *work = (struct work_struct *)fp->bpf_func; ++ struct work_struct *work = &fp->work->work; + + INIT_WORK(work, jit_free_defer); ++ fp->work->image = fp->bpf_func; + schedule_work(work); + } + } +diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c +index d6aa6e8..266395a 100644 +--- a/arch/x86/oprofile/backtrace.c ++++ b/arch/x86/oprofile/backtrace.c +@@ -46,11 +46,11 @@ dump_user_backtrace_32(struct stack_frame_ia32 *head) + struct stack_frame_ia32 *fp; + unsigned long bytes; + +- bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead)); ++ bytes = copy_from_user_nmi(bufhead, (const char __force_user *)head, sizeof(bufhead)); + if (bytes != sizeof(bufhead)) + return NULL; + +- fp = (struct stack_frame_ia32 *) compat_ptr(bufhead[0].next_frame); ++ fp = (struct stack_frame_ia32 __force_kernel *) compat_ptr(bufhead[0].next_frame); + + oprofile_add_trace(bufhead[0].return_address); + +@@ -92,7 +92,7 @@ static struct stack_frame *dump_user_backtrace(struct stack_frame *head) + struct stack_frame bufhead[2]; + unsigned long bytes; + +- bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead)); ++ bytes = copy_from_user_nmi(bufhead, (const char __force_user *)head, sizeof(bufhead)); + if (bytes != sizeof(bufhead)) + return NULL; + +@@ -111,7 +111,7 @@ x86_backtrace(struct pt_regs * const regs, unsigned int depth) + { + struct stack_frame *head = (struct stack_frame *)frame_pointer(regs); + +- if (!user_mode_vm(regs)) { ++ if (!user_mode(regs)) { + unsigned long stack = kernel_stack_pointer(regs); + if (depth) + dump_trace(NULL, regs, (unsigned long *)stack, 0, +diff --git a/arch/x86/pci/mrst.c b/arch/x86/pci/mrst.c +index 140942f..8a5cc55 100644 +--- a/arch/x86/pci/mrst.c ++++ b/arch/x86/pci/mrst.c +@@ -238,7 +238,9 @@ int __init pci_mrst_init(void) + printk(KERN_INFO "Intel MID platform detected, using MID PCI ops\n"); + pci_mmcfg_late_init(); + pcibios_enable_irq = mrst_pci_irq_enable; +- pci_root_ops = pci_mrst_ops; ++ pax_open_kernel(); ++ memcpy((void *)&pci_root_ops, &pci_mrst_ops, sizeof(pci_mrst_ops)); ++ pax_close_kernel(); + pci_soc_mode = 1; + /* Continue with standard init */ + return 1; +diff --git a/arch/x86/pci/pcbios.c b/arch/x86/pci/pcbios.c +index da8fe05..7ee6704 100644 +--- a/arch/x86/pci/pcbios.c ++++ b/arch/x86/pci/pcbios.c +@@ -79,50 +79,93 @@ union bios32 { + static struct { + unsigned long address; + unsigned short segment; +-} bios32_indirect = { 0, __KERNEL_CS }; ++} bios32_indirect __read_only = { 0, __PCIBIOS_CS }; + + /* + * Returns the entry point for the given service, NULL on error + */ + +-static unsigned long bios32_service(unsigned long service) ++static unsigned long __devinit bios32_service(unsigned long service) + { + unsigned char return_code; /* %al */ + unsigned long address; /* %ebx */ + unsigned long length; /* %ecx */ + unsigned long entry; /* %edx */ + unsigned long flags; ++ struct desc_struct d, *gdt; + + local_irq_save(flags); +- __asm__("lcall *(%%edi); cld" ++ ++ gdt = get_cpu_gdt_table(smp_processor_id()); ++ ++ pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x9B, 0xC); ++ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S); ++ pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x93, 0xC); ++ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S); ++ ++ __asm__("movw %w7, %%ds; lcall *(%%edi); push %%ss; pop %%ds; cld" + : "=a" (return_code), + "=b" (address), + "=c" (length), + "=d" (entry) + : "0" (service), + "1" (0), +- "D" (&bios32_indirect)); ++ "D" (&bios32_indirect), ++ "r"(__PCIBIOS_DS) ++ : "memory"); ++ ++ pax_open_kernel(); ++ gdt[GDT_ENTRY_PCIBIOS_CS].a = 0; ++ gdt[GDT_ENTRY_PCIBIOS_CS].b = 0; ++ gdt[GDT_ENTRY_PCIBIOS_DS].a = 0; ++ gdt[GDT_ENTRY_PCIBIOS_DS].b = 0; ++ pax_close_kernel(); ++ + local_irq_restore(flags); + + switch (return_code) { +- case 0: +- return address + entry; +- case 0x80: /* Not present */ +- printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service); +- return 0; +- default: /* Shouldn't happen */ +- printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n", +- service, return_code); ++ case 0: { ++ int cpu; ++ unsigned char flags; ++ ++ printk(KERN_INFO "bios32_service: base:%08lx length:%08lx entry:%08lx\n", address, length, entry); ++ if (address >= 0xFFFF0 || length > 0x100000 - address || length <= entry) { ++ printk(KERN_WARNING "bios32_service: not valid\n"); + return 0; ++ } ++ address = address + PAGE_OFFSET; ++ length += 16UL; /* some BIOSs underreport this... */ ++ flags = 4; ++ if (length >= 64*1024*1024) { ++ length >>= PAGE_SHIFT; ++ flags |= 8; ++ } ++ ++ for (cpu = 0; cpu < nr_cpu_ids; cpu++) { ++ gdt = get_cpu_gdt_table(cpu); ++ pack_descriptor(&d, address, length, 0x9b, flags); ++ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S); ++ pack_descriptor(&d, address, length, 0x93, flags); ++ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S); ++ } ++ return entry; ++ } ++ case 0x80: /* Not present */ ++ printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service); ++ return 0; ++ default: /* Shouldn't happen */ ++ printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n", ++ service, return_code); ++ return 0; + } + } + + static struct { + unsigned long address; + unsigned short segment; +-} pci_indirect = { 0, __KERNEL_CS }; ++} pci_indirect __read_only = { 0, __PCIBIOS_CS }; + +-static int pci_bios_present; ++static int pci_bios_present __read_only; + + static int __devinit check_pcibios(void) + { +@@ -131,11 +174,13 @@ static int __devinit check_pcibios(void) + unsigned long flags, pcibios_entry; + + if ((pcibios_entry = bios32_service(PCI_SERVICE))) { +- pci_indirect.address = pcibios_entry + PAGE_OFFSET; ++ pci_indirect.address = pcibios_entry; + + local_irq_save(flags); +- __asm__( +- "lcall *(%%edi); cld\n\t" ++ __asm__("movw %w6, %%ds\n\t" ++ "lcall *%%ss:(%%edi); cld\n\t" ++ "push %%ss\n\t" ++ "pop %%ds\n\t" + "jc 1f\n\t" + "xor %%ah, %%ah\n" + "1:" +@@ -144,7 +189,8 @@ static int __devinit check_pcibios(void) + "=b" (ebx), + "=c" (ecx) + : "1" (PCIBIOS_PCI_BIOS_PRESENT), +- "D" (&pci_indirect) ++ "D" (&pci_indirect), ++ "r" (__PCIBIOS_DS) + : "memory"); + local_irq_restore(flags); + +@@ -189,7 +235,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus, + + switch (len) { + case 1: +- __asm__("lcall *(%%esi); cld\n\t" ++ __asm__("movw %w6, %%ds\n\t" ++ "lcall *%%ss:(%%esi); cld\n\t" ++ "push %%ss\n\t" ++ "pop %%ds\n\t" + "jc 1f\n\t" + "xor %%ah, %%ah\n" + "1:" +@@ -198,7 +247,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus, + : "1" (PCIBIOS_READ_CONFIG_BYTE), + "b" (bx), + "D" ((long)reg), +- "S" (&pci_indirect)); ++ "S" (&pci_indirect), ++ "r" (__PCIBIOS_DS)); + /* + * Zero-extend the result beyond 8 bits, do not trust the + * BIOS having done it: +@@ -206,7 +256,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus, + *value &= 0xff; + break; + case 2: +- __asm__("lcall *(%%esi); cld\n\t" ++ __asm__("movw %w6, %%ds\n\t" ++ "lcall *%%ss:(%%esi); cld\n\t" ++ "push %%ss\n\t" ++ "pop %%ds\n\t" + "jc 1f\n\t" + "xor %%ah, %%ah\n" + "1:" +@@ -215,7 +268,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus, + : "1" (PCIBIOS_READ_CONFIG_WORD), + "b" (bx), + "D" ((long)reg), +- "S" (&pci_indirect)); ++ "S" (&pci_indirect), ++ "r" (__PCIBIOS_DS)); + /* + * Zero-extend the result beyond 16 bits, do not trust the + * BIOS having done it: +@@ -223,7 +277,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus, + *value &= 0xffff; + break; + case 4: +- __asm__("lcall *(%%esi); cld\n\t" ++ __asm__("movw %w6, %%ds\n\t" ++ "lcall *%%ss:(%%esi); cld\n\t" ++ "push %%ss\n\t" ++ "pop %%ds\n\t" + "jc 1f\n\t" + "xor %%ah, %%ah\n" + "1:" +@@ -232,7 +289,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus, + : "1" (PCIBIOS_READ_CONFIG_DWORD), + "b" (bx), + "D" ((long)reg), +- "S" (&pci_indirect)); ++ "S" (&pci_indirect), ++ "r" (__PCIBIOS_DS)); + break; + } + +@@ -256,7 +314,10 @@ static int pci_bios_write(unsigned int seg, unsigned int bus, + + switch (len) { + case 1: +- __asm__("lcall *(%%esi); cld\n\t" ++ __asm__("movw %w6, %%ds\n\t" ++ "lcall *%%ss:(%%esi); cld\n\t" ++ "push %%ss\n\t" ++ "pop %%ds\n\t" + "jc 1f\n\t" + "xor %%ah, %%ah\n" + "1:" +@@ -265,10 +326,14 @@ static int pci_bios_write(unsigned int seg, unsigned int bus, + "c" (value), + "b" (bx), + "D" ((long)reg), +- "S" (&pci_indirect)); ++ "S" (&pci_indirect), ++ "r" (__PCIBIOS_DS)); + break; + case 2: +- __asm__("lcall *(%%esi); cld\n\t" ++ __asm__("movw %w6, %%ds\n\t" ++ "lcall *%%ss:(%%esi); cld\n\t" ++ "push %%ss\n\t" ++ "pop %%ds\n\t" + "jc 1f\n\t" + "xor %%ah, %%ah\n" + "1:" +@@ -277,10 +342,14 @@ static int pci_bios_write(unsigned int seg, unsigned int bus, + "c" (value), + "b" (bx), + "D" ((long)reg), +- "S" (&pci_indirect)); ++ "S" (&pci_indirect), ++ "r" (__PCIBIOS_DS)); + break; + case 4: +- __asm__("lcall *(%%esi); cld\n\t" ++ __asm__("movw %w6, %%ds\n\t" ++ "lcall *%%ss:(%%esi); cld\n\t" ++ "push %%ss\n\t" ++ "pop %%ds\n\t" + "jc 1f\n\t" + "xor %%ah, %%ah\n" + "1:" +@@ -289,7 +358,8 @@ static int pci_bios_write(unsigned int seg, unsigned int bus, + "c" (value), + "b" (bx), + "D" ((long)reg), +- "S" (&pci_indirect)); ++ "S" (&pci_indirect), ++ "r" (__PCIBIOS_DS)); + break; + } + +@@ -394,10 +464,13 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void) + + DBG("PCI: Fetching IRQ routing table... "); + __asm__("push %%es\n\t" ++ "movw %w8, %%ds\n\t" + "push %%ds\n\t" + "pop %%es\n\t" +- "lcall *(%%esi); cld\n\t" ++ "lcall *%%ss:(%%esi); cld\n\t" + "pop %%es\n\t" ++ "push %%ss\n\t" ++ "pop %%ds\n" + "jc 1f\n\t" + "xor %%ah, %%ah\n" + "1:" +@@ -408,7 +481,8 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void) + "1" (0), + "D" ((long) &opt), + "S" (&pci_indirect), +- "m" (opt) ++ "m" (opt), ++ "r" (__PCIBIOS_DS) + : "memory"); + DBG("OK ret=%d, size=%d, map=%x\n", ret, opt.size, map); + if (ret & 0xff00) +@@ -432,7 +506,10 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq) + { + int ret; + +- __asm__("lcall *(%%esi); cld\n\t" ++ __asm__("movw %w5, %%ds\n\t" ++ "lcall *%%ss:(%%esi); cld\n\t" ++ "push %%ss\n\t" ++ "pop %%ds\n" + "jc 1f\n\t" + "xor %%ah, %%ah\n" + "1:" +@@ -440,7 +517,8 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq) + : "0" (PCIBIOS_SET_PCI_HW_INT), + "b" ((dev->bus->number << 8) | dev->devfn), + "c" ((irq << 8) | (pin + 10)), +- "S" (&pci_indirect)); ++ "S" (&pci_indirect), ++ "r" (__PCIBIOS_DS)); + return !(ret & 0xff00); + } + EXPORT_SYMBOL(pcibios_set_irq_routing); +diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c +index 40e4469..1ab536e 100644 +--- a/arch/x86/platform/efi/efi_32.c ++++ b/arch/x86/platform/efi/efi_32.c +@@ -44,11 +44,22 @@ void efi_call_phys_prelog(void) + { + struct desc_ptr gdt_descr; + ++#ifdef CONFIG_PAX_KERNEXEC ++ struct desc_struct d; ++#endif ++ + local_irq_save(efi_rt_eflags); + + load_cr3(initial_page_table); + __flush_tlb_all(); + ++#ifdef CONFIG_PAX_KERNEXEC ++ pack_descriptor(&d, 0, 0xFFFFF, 0x9B, 0xC); ++ write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_CS, &d, DESCTYPE_S); ++ pack_descriptor(&d, 0, 0xFFFFF, 0x93, 0xC); ++ write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_DS, &d, DESCTYPE_S); ++#endif ++ + gdt_descr.address = __pa(get_cpu_gdt_table(0)); + gdt_descr.size = GDT_SIZE - 1; + load_gdt(&gdt_descr); +@@ -58,6 +69,14 @@ void efi_call_phys_epilog(void) + { + struct desc_ptr gdt_descr; + ++#ifdef CONFIG_PAX_KERNEXEC ++ struct desc_struct d; ++ ++ memset(&d, 0, sizeof d); ++ write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_CS, &d, DESCTYPE_S); ++ write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_DS, &d, DESCTYPE_S); ++#endif ++ + gdt_descr.address = (unsigned long)get_cpu_gdt_table(0); + gdt_descr.size = GDT_SIZE - 1; + load_gdt(&gdt_descr); +diff --git a/arch/x86/platform/efi/efi_stub_32.S b/arch/x86/platform/efi/efi_stub_32.S +index fbe66e6..c5c0dd2 100644 +--- a/arch/x86/platform/efi/efi_stub_32.S ++++ b/arch/x86/platform/efi/efi_stub_32.S +@@ -6,7 +6,9 @@ + */ + + #include <linux/linkage.h> ++#include <linux/init.h> + #include <asm/page_types.h> ++#include <asm/segment.h> + + /* + * efi_call_phys(void *, ...) is a function with variable parameters. +@@ -20,7 +22,7 @@ + * service functions will comply with gcc calling convention, too. + */ + +-.text ++__INIT + ENTRY(efi_call_phys) + /* + * 0. The function can only be called in Linux kernel. So CS has been +@@ -36,9 +38,11 @@ ENTRY(efi_call_phys) + * The mapping of lower virtual memory has been created in prelog and + * epilog. + */ +- movl $1f, %edx +- subl $__PAGE_OFFSET, %edx +- jmp *%edx ++ movl $(__KERNEXEC_EFI_DS), %edx ++ mov %edx, %ds ++ mov %edx, %es ++ mov %edx, %ss ++ ljmp $(__KERNEXEC_EFI_CS),$1f-__PAGE_OFFSET + 1: + + /* +@@ -47,14 +51,8 @@ ENTRY(efi_call_phys) + * parameter 2, ..., param n. To make things easy, we save the return + * address of efi_call_phys in a global variable. + */ +- popl %edx +- movl %edx, saved_return_addr +- /* get the function pointer into ECX*/ +- popl %ecx +- movl %ecx, efi_rt_function_ptr +- movl $2f, %edx +- subl $__PAGE_OFFSET, %edx +- pushl %edx ++ popl (saved_return_addr) ++ popl (efi_rt_function_ptr) + + /* + * 3. Clear PG bit in %CR0. +@@ -73,9 +71,8 @@ ENTRY(efi_call_phys) + /* + * 5. Call the physical function. + */ +- jmp *%ecx ++ call *(efi_rt_function_ptr-__PAGE_OFFSET) + +-2: + /* + * 6. After EFI runtime service returns, control will return to + * following instruction. We'd better readjust stack pointer first. +@@ -88,35 +85,32 @@ ENTRY(efi_call_phys) + movl %cr0, %edx + orl $0x80000000, %edx + movl %edx, %cr0 +- jmp 1f +-1: ++ + /* + * 8. Now restore the virtual mode from flat mode by + * adding EIP with PAGE_OFFSET. + */ +- movl $1f, %edx +- jmp *%edx ++ ljmp $(__KERNEL_CS),$1f+__PAGE_OFFSET + 1: ++ movl $(__KERNEL_DS), %edx ++ mov %edx, %ds ++ mov %edx, %es ++ mov %edx, %ss + + /* + * 9. Balance the stack. And because EAX contain the return value, + * we'd better not clobber it. + */ +- leal efi_rt_function_ptr, %edx +- movl (%edx), %ecx +- pushl %ecx ++ pushl (efi_rt_function_ptr) + + /* +- * 10. Push the saved return address onto the stack and return. ++ * 10. Return to the saved return address. + */ +- leal saved_return_addr, %edx +- movl (%edx), %ecx +- pushl %ecx +- ret ++ jmpl *(saved_return_addr) + ENDPROC(efi_call_phys) + .previous + +-.data ++__INITDATA + saved_return_addr: + .long 0 + efi_rt_function_ptr: +diff --git a/arch/x86/platform/efi/efi_stub_64.S b/arch/x86/platform/efi/efi_stub_64.S +index 4c07cca..2c8427d 100644 +--- a/arch/x86/platform/efi/efi_stub_64.S ++++ b/arch/x86/platform/efi/efi_stub_64.S +@@ -7,6 +7,7 @@ + */ + + #include <linux/linkage.h> ++#include <asm/alternative-asm.h> + + #define SAVE_XMM \ + mov %rsp, %rax; \ +@@ -40,6 +41,7 @@ ENTRY(efi_call0) + call *%rdi + addq $32, %rsp + RESTORE_XMM ++ pax_force_retaddr 0, 1 + ret + ENDPROC(efi_call0) + +@@ -50,6 +52,7 @@ ENTRY(efi_call1) + call *%rdi + addq $32, %rsp + RESTORE_XMM ++ pax_force_retaddr 0, 1 + ret + ENDPROC(efi_call1) + +@@ -60,6 +63,7 @@ ENTRY(efi_call2) + call *%rdi + addq $32, %rsp + RESTORE_XMM ++ pax_force_retaddr 0, 1 + ret + ENDPROC(efi_call2) + +@@ -71,6 +75,7 @@ ENTRY(efi_call3) + call *%rdi + addq $32, %rsp + RESTORE_XMM ++ pax_force_retaddr 0, 1 + ret + ENDPROC(efi_call3) + +@@ -83,6 +88,7 @@ ENTRY(efi_call4) + call *%rdi + addq $32, %rsp + RESTORE_XMM ++ pax_force_retaddr 0, 1 + ret + ENDPROC(efi_call4) + +@@ -96,6 +102,7 @@ ENTRY(efi_call5) + call *%rdi + addq $48, %rsp + RESTORE_XMM ++ pax_force_retaddr 0, 1 + ret + ENDPROC(efi_call5) + +@@ -112,5 +119,6 @@ ENTRY(efi_call6) + call *%rdi + addq $48, %rsp + RESTORE_XMM ++ pax_force_retaddr 0, 1 + ret + ENDPROC(efi_call6) +diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c +index e31bcd8..f12dc46 100644 +--- a/arch/x86/platform/mrst/mrst.c ++++ b/arch/x86/platform/mrst/mrst.c +@@ -78,13 +78,15 @@ struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX]; + EXPORT_SYMBOL_GPL(sfi_mrtc_array); + int sfi_mrtc_num; + +-static void mrst_power_off(void) ++static __noreturn void mrst_power_off(void) + { ++ BUG(); + } + +-static void mrst_reboot(void) ++static __noreturn void mrst_reboot(void) + { + intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0); ++ BUG(); + } + + /* parse all the mtimer info to a static mtimer array */ +diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c +index 218cdb1..fd55c08 100644 +--- a/arch/x86/power/cpu.c ++++ b/arch/x86/power/cpu.c +@@ -132,7 +132,7 @@ static void do_fpu_end(void) + static void fix_processor_context(void) + { + int cpu = smp_processor_id(); +- struct tss_struct *t = &per_cpu(init_tss, cpu); ++ struct tss_struct *t = init_tss + cpu; + + set_tss_desc(cpu, t); /* + * This just modifies memory; should not be +@@ -142,7 +142,9 @@ static void fix_processor_context(void) + */ + + #ifdef CONFIG_X86_64 ++ pax_open_kernel(); + get_cpu_gdt_table(cpu)[GDT_ENTRY_TSS].type = 9; ++ pax_close_kernel(); + + syscall_init(); /* This sets MSR_*STAR and related */ + #endif +diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c +index b685296..e00eb65 100644 +--- a/arch/x86/tools/relocs.c ++++ b/arch/x86/tools/relocs.c +@@ -12,10 +12,13 @@ + #include <regex.h> + #include <tools/le_byteshift.h> + ++#include "../../../include/generated/autoconf.h" ++ + static void die(char *fmt, ...); + + #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) + static Elf32_Ehdr ehdr; ++static Elf32_Phdr *phdr; + static unsigned long reloc_count, reloc_idx; + static unsigned long *relocs; + static unsigned long reloc16_count, reloc16_idx; +@@ -323,9 +326,39 @@ static void read_ehdr(FILE *fp) + } + } + ++static void read_phdrs(FILE *fp) ++{ ++ unsigned int i; ++ ++ phdr = calloc(ehdr.e_phnum, sizeof(Elf32_Phdr)); ++ if (!phdr) { ++ die("Unable to allocate %d program headers\n", ++ ehdr.e_phnum); ++ } ++ if (fseek(fp, ehdr.e_phoff, SEEK_SET) < 0) { ++ die("Seek to %d failed: %s\n", ++ ehdr.e_phoff, strerror(errno)); ++ } ++ if (fread(phdr, sizeof(*phdr), ehdr.e_phnum, fp) != ehdr.e_phnum) { ++ die("Cannot read ELF program headers: %s\n", ++ strerror(errno)); ++ } ++ for(i = 0; i < ehdr.e_phnum; i++) { ++ phdr[i].p_type = elf32_to_cpu(phdr[i].p_type); ++ phdr[i].p_offset = elf32_to_cpu(phdr[i].p_offset); ++ phdr[i].p_vaddr = elf32_to_cpu(phdr[i].p_vaddr); ++ phdr[i].p_paddr = elf32_to_cpu(phdr[i].p_paddr); ++ phdr[i].p_filesz = elf32_to_cpu(phdr[i].p_filesz); ++ phdr[i].p_memsz = elf32_to_cpu(phdr[i].p_memsz); ++ phdr[i].p_flags = elf32_to_cpu(phdr[i].p_flags); ++ phdr[i].p_align = elf32_to_cpu(phdr[i].p_align); ++ } ++ ++} ++ + static void read_shdrs(FILE *fp) + { +- int i; ++ unsigned int i; + Elf32_Shdr shdr; + + secs = calloc(ehdr.e_shnum, sizeof(struct section)); +@@ -360,7 +393,7 @@ static void read_shdrs(FILE *fp) + + static void read_strtabs(FILE *fp) + { +- int i; ++ unsigned int i; + for (i = 0; i < ehdr.e_shnum; i++) { + struct section *sec = &secs[i]; + if (sec->shdr.sh_type != SHT_STRTAB) { +@@ -385,7 +418,7 @@ static void read_strtabs(FILE *fp) + + static void read_symtabs(FILE *fp) + { +- int i,j; ++ unsigned int i,j; + for (i = 0; i < ehdr.e_shnum; i++) { + struct section *sec = &secs[i]; + if (sec->shdr.sh_type != SHT_SYMTAB) { +@@ -418,7 +451,9 @@ static void read_symtabs(FILE *fp) + + static void read_relocs(FILE *fp) + { +- int i,j; ++ unsigned int i,j; ++ uint32_t base; ++ + for (i = 0; i < ehdr.e_shnum; i++) { + struct section *sec = &secs[i]; + if (sec->shdr.sh_type != SHT_REL) { +@@ -438,9 +473,22 @@ static void read_relocs(FILE *fp) + die("Cannot read symbol table: %s\n", + strerror(errno)); + } ++ base = 0; ++ ++#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_X86_32) ++ for (j = 0; j < ehdr.e_phnum; j++) { ++ if (phdr[j].p_type != PT_LOAD ) ++ continue; ++ if (secs[sec->shdr.sh_info].shdr.sh_offset < phdr[j].p_offset || secs[sec->shdr.sh_info].shdr.sh_offset >= phdr[j].p_offset + phdr[j].p_filesz) ++ continue; ++ base = CONFIG_PAGE_OFFSET + phdr[j].p_paddr - phdr[j].p_vaddr; ++ break; ++ } ++#endif ++ + for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Rel); j++) { + Elf32_Rel *rel = &sec->reltab[j]; +- rel->r_offset = elf32_to_cpu(rel->r_offset); ++ rel->r_offset = elf32_to_cpu(rel->r_offset) + base; + rel->r_info = elf32_to_cpu(rel->r_info); + } + } +@@ -449,13 +497,13 @@ static void read_relocs(FILE *fp) + + static void print_absolute_symbols(void) + { +- int i; ++ unsigned int i; + printf("Absolute symbols\n"); + printf(" Num: Value Size Type Bind Visibility Name\n"); + for (i = 0; i < ehdr.e_shnum; i++) { + struct section *sec = &secs[i]; + char *sym_strtab; +- int j; ++ unsigned int j; + + if (sec->shdr.sh_type != SHT_SYMTAB) { + continue; +@@ -482,14 +530,14 @@ static void print_absolute_symbols(void) + + static void print_absolute_relocs(void) + { +- int i, printed = 0; ++ unsigned int i, printed = 0; + + for (i = 0; i < ehdr.e_shnum; i++) { + struct section *sec = &secs[i]; + struct section *sec_applies, *sec_symtab; + char *sym_strtab; + Elf32_Sym *sh_symtab; +- int j; ++ unsigned int j; + if (sec->shdr.sh_type != SHT_REL) { + continue; + } +@@ -551,13 +599,13 @@ static void print_absolute_relocs(void) + static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym), + int use_real_mode) + { +- int i; ++ unsigned int i; + /* Walk through the relocations */ + for (i = 0; i < ehdr.e_shnum; i++) { + char *sym_strtab; + Elf32_Sym *sh_symtab; + struct section *sec_applies, *sec_symtab; +- int j; ++ unsigned int j; + struct section *sec = &secs[i]; + + if (sec->shdr.sh_type != SHT_REL) { +@@ -581,6 +629,22 @@ static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym), + sym = &sh_symtab[ELF32_R_SYM(rel->r_info)]; + r_type = ELF32_R_TYPE(rel->r_info); + ++ /* Don't relocate actual per-cpu variables, they are absolute indices, not addresses */ ++ if (!strcmp(sec_name(sym->st_shndx), ".data..percpu") && strcmp(sym_name(sym_strtab, sym), "__per_cpu_load")) ++ continue; ++ ++#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_X86_32) ++ /* Don't relocate actual code, they are relocated implicitly by the base address of KERNEL_CS */ ++ if (!strcmp(sec_name(sym->st_shndx), ".module.text") && !strcmp(sym_name(sym_strtab, sym), "_etext")) ++ continue; ++ if (!strcmp(sec_name(sym->st_shndx), ".init.text")) ++ continue; ++ if (!strcmp(sec_name(sym->st_shndx), ".exit.text")) ++ continue; ++ if (!strcmp(sec_name(sym->st_shndx), ".text") && strcmp(sym_name(sym_strtab, sym), "__LOAD_PHYSICAL_ADDR")) ++ continue; ++#endif ++ + shn_abs = sym->st_shndx == SHN_ABS; + + switch (r_type) { +@@ -674,7 +738,7 @@ static int write32(unsigned int v, FILE *f) + + static void emit_relocs(int as_text, int use_real_mode) + { +- int i; ++ unsigned int i; + /* Count how many relocations I have and allocate space for them. */ + reloc_count = 0; + walk_relocs(count_reloc, use_real_mode); +@@ -801,6 +865,7 @@ int main(int argc, char **argv) + fname, strerror(errno)); + } + read_ehdr(fp); ++ read_phdrs(fp); + read_shdrs(fp); + read_strtabs(fp); + read_symtabs(fp); +diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile +index fd14be1..e3c79c0 100644 +--- a/arch/x86/vdso/Makefile ++++ b/arch/x86/vdso/Makefile +@@ -181,7 +181,7 @@ quiet_cmd_vdso = VDSO $@ + -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^) && \ + sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@' + +-VDSO_LDFLAGS = -fPIC -shared $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) ++VDSO_LDFLAGS = -fPIC -shared -Wl,--no-undefined $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) + GCOV_PROFILE := n + + # +diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c +index 66e6d93..587f435 100644 +--- a/arch/x86/vdso/vdso32-setup.c ++++ b/arch/x86/vdso/vdso32-setup.c +@@ -25,6 +25,7 @@ + #include <asm/tlbflush.h> + #include <asm/vdso.h> + #include <asm/proto.h> ++#include <asm/mman.h> + + enum { + VDSO_DISABLED = 0, +@@ -226,7 +227,7 @@ static inline void map_compat_vdso(int map) + void enable_sep_cpu(void) + { + int cpu = get_cpu(); +- struct tss_struct *tss = &per_cpu(init_tss, cpu); ++ struct tss_struct *tss = init_tss + cpu; + + if (!boot_cpu_has(X86_FEATURE_SEP)) { + put_cpu(); +@@ -249,7 +250,7 @@ static int __init gate_vma_init(void) + gate_vma.vm_start = FIXADDR_USER_START; + gate_vma.vm_end = FIXADDR_USER_END; + gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC; +- gate_vma.vm_page_prot = __P101; ++ gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags); + + return 0; + } +@@ -330,14 +331,14 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) + if (compat) + addr = VDSO_HIGH_BASE; + else { +- addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0); ++ addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, MAP_EXECUTABLE); + if (IS_ERR_VALUE(addr)) { + ret = addr; + goto up_fail; + } + } + +- current->mm->context.vdso = (void *)addr; ++ current->mm->context.vdso = addr; + + if (compat_uses_vma || !compat) { + /* +@@ -353,11 +354,11 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) + } + + current_thread_info()->sysenter_return = +- VDSO32_SYMBOL(addr, SYSENTER_RETURN); ++ (__force void __user *)VDSO32_SYMBOL(addr, SYSENTER_RETURN); + + up_fail: + if (ret) +- current->mm->context.vdso = NULL; ++ current->mm->context.vdso = 0; + + up_write(&mm->mmap_sem); + +@@ -404,8 +405,14 @@ __initcall(ia32_binfmt_init); + + const char *arch_vma_name(struct vm_area_struct *vma) + { +- if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso) ++ if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso) + return "[vdso]"; ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (vma->vm_mm && vma->vm_mirror && vma->vm_mirror->vm_start == vma->vm_mm->context.vdso) ++ return "[vdso]"; ++#endif ++ + return NULL; + } + +@@ -415,7 +422,7 @@ struct vm_area_struct *get_gate_vma(struct mm_struct *mm) + * Check to see if the corresponding task was created in compat vdso + * mode. + */ +- if (mm && mm->context.vdso == (void *)VDSO_HIGH_BASE) ++ if (mm && mm->context.vdso == VDSO_HIGH_BASE) + return &gate_vma; + return NULL; + } +diff --git a/arch/x86/vdso/vma.c b/arch/x86/vdso/vma.c +index 00aaf04..4a26505 100644 +--- a/arch/x86/vdso/vma.c ++++ b/arch/x86/vdso/vma.c +@@ -16,8 +16,6 @@ + #include <asm/vdso.h> + #include <asm/page.h> + +-unsigned int __read_mostly vdso_enabled = 1; +- + extern char vdso_start[], vdso_end[]; + extern unsigned short vdso_sync_cpuid; + +@@ -141,7 +139,6 @@ static unsigned long vdso_addr(unsigned long start, unsigned len) + * unaligned here as a result of stack start randomization. + */ + addr = PAGE_ALIGN(addr); +- addr = align_addr(addr, NULL, ALIGN_VDSO); + + return addr; + } +@@ -154,30 +151,31 @@ static int setup_additional_pages(struct linux_binprm *bprm, + unsigned size) + { + struct mm_struct *mm = current->mm; +- unsigned long addr; ++ unsigned long addr = 0; + int ret; + +- if (!vdso_enabled) +- return 0; +- + down_write(&mm->mmap_sem); ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) ++#endif ++ + addr = vdso_addr(mm->start_stack, size); ++ addr = align_addr(addr, NULL, ALIGN_VDSO); + addr = get_unmapped_area(NULL, addr, size, 0, 0); + if (IS_ERR_VALUE(addr)) { + ret = addr; + goto up_fail; + } + +- current->mm->context.vdso = (void *)addr; ++ mm->context.vdso = addr; + + ret = install_special_mapping(mm, addr, size, + VM_READ|VM_EXEC| + VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC, + pages); +- if (ret) { +- current->mm->context.vdso = NULL; +- goto up_fail; +- } ++ if (ret) ++ mm->context.vdso = 0; + + up_fail: + up_write(&mm->mmap_sem); +@@ -197,10 +195,3 @@ int x32_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) + vdsox32_size); + } + #endif +- +-static __init int vdso_setup(char *s) +-{ +- vdso_enabled = simple_strtoul(s, NULL, 0); +- return 0; +-} +-__setup("vdso=", vdso_setup); +diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c +index 40edfc3..b4d80ac 100644 +--- a/arch/x86/xen/enlighten.c ++++ b/arch/x86/xen/enlighten.c +@@ -95,8 +95,6 @@ EXPORT_SYMBOL_GPL(xen_start_info); + + struct shared_info xen_dummy_shared_info; + +-void *xen_initial_gdt; +- + RESERVE_BRK(shared_info_page_brk, PAGE_SIZE); + __read_mostly int xen_have_vector_callback; + EXPORT_SYMBOL_GPL(xen_have_vector_callback); +@@ -1165,30 +1163,30 @@ static const struct pv_apic_ops xen_apic_ops __initconst = { + #endif + }; + +-static void xen_reboot(int reason) ++static __noreturn void xen_reboot(int reason) + { + struct sched_shutdown r = { .reason = reason }; + +- if (HYPERVISOR_sched_op(SCHEDOP_shutdown, &r)) +- BUG(); ++ HYPERVISOR_sched_op(SCHEDOP_shutdown, &r); ++ BUG(); + } + +-static void xen_restart(char *msg) ++static __noreturn void xen_restart(char *msg) + { + xen_reboot(SHUTDOWN_reboot); + } + +-static void xen_emergency_restart(void) ++static __noreturn void xen_emergency_restart(void) + { + xen_reboot(SHUTDOWN_reboot); + } + +-static void xen_machine_halt(void) ++static __noreturn void xen_machine_halt(void) + { + xen_reboot(SHUTDOWN_poweroff); + } + +-static void xen_machine_power_off(void) ++static __noreturn void xen_machine_power_off(void) + { + if (pm_power_off) + pm_power_off(); +@@ -1291,7 +1289,17 @@ asmlinkage void __init xen_start_kernel(void) + __userpte_alloc_gfp &= ~__GFP_HIGHMEM; + + /* Work out if we support NX */ +- x86_configure_nx(); ++#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) ++ if ((cpuid_eax(0x80000000) & 0xffff0000) == 0x80000000 && ++ (cpuid_edx(0x80000001) & (1U << (X86_FEATURE_NX & 31)))) { ++ unsigned l, h; ++ ++ __supported_pte_mask |= _PAGE_NX; ++ rdmsr(MSR_EFER, l, h); ++ l |= EFER_NX; ++ wrmsr(MSR_EFER, l, h); ++ } ++#endif + + xen_setup_features(); + +@@ -1322,13 +1330,6 @@ asmlinkage void __init xen_start_kernel(void) + + machine_ops = xen_machine_ops; + +- /* +- * The only reliable way to retain the initial address of the +- * percpu gdt_page is to remember it here, so we can go and +- * mark it RW later, when the initial percpu area is freed. +- */ +- xen_initial_gdt = &per_cpu(gdt_page, 0); +- + xen_smp_init(); + + #ifdef CONFIG_ACPI_NUMA +diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c +index 69f5857..0699dc5 100644 +--- a/arch/x86/xen/mmu.c ++++ b/arch/x86/xen/mmu.c +@@ -1738,6 +1738,9 @@ pgd_t * __init xen_setup_kernel_pagetable(pgd_t *pgd, + convert_pfn_mfn(init_level4_pgt); + convert_pfn_mfn(level3_ident_pgt); + convert_pfn_mfn(level3_kernel_pgt); ++ convert_pfn_mfn(level3_vmalloc_start_pgt); ++ convert_pfn_mfn(level3_vmalloc_end_pgt); ++ convert_pfn_mfn(level3_vmemmap_pgt); + + l3 = m2v(pgd[pgd_index(__START_KERNEL_map)].pgd); + l2 = m2v(l3[pud_index(__START_KERNEL_map)].pud); +@@ -1756,7 +1759,11 @@ pgd_t * __init xen_setup_kernel_pagetable(pgd_t *pgd, + set_page_prot(init_level4_pgt, PAGE_KERNEL_RO); + set_page_prot(level3_ident_pgt, PAGE_KERNEL_RO); + set_page_prot(level3_kernel_pgt, PAGE_KERNEL_RO); ++ set_page_prot(level3_vmalloc_start_pgt, PAGE_KERNEL_RO); ++ set_page_prot(level3_vmalloc_end_pgt, PAGE_KERNEL_RO); ++ set_page_prot(level3_vmemmap_pgt, PAGE_KERNEL_RO); + set_page_prot(level3_user_vsyscall, PAGE_KERNEL_RO); ++ set_page_prot(level2_vmemmap_pgt, PAGE_KERNEL_RO); + set_page_prot(level2_kernel_pgt, PAGE_KERNEL_RO); + set_page_prot(level2_fixmap_pgt, PAGE_KERNEL_RO); + +@@ -1964,6 +1971,7 @@ static void __init xen_post_allocator_init(void) + pv_mmu_ops.set_pud = xen_set_pud; + #if PAGETABLE_LEVELS == 4 + pv_mmu_ops.set_pgd = xen_set_pgd; ++ pv_mmu_ops.set_pgd_batched = xen_set_pgd; + #endif + + /* This will work as long as patching hasn't happened yet +@@ -2045,6 +2053,7 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = { + .pud_val = PV_CALLEE_SAVE(xen_pud_val), + .make_pud = PV_CALLEE_SAVE(xen_make_pud), + .set_pgd = xen_set_pgd_hyper, ++ .set_pgd_batched = xen_set_pgd_hyper, + + .alloc_pud = xen_alloc_pmd_init, + .release_pud = xen_release_pmd_init, +diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c +index 0503c0c..ceb2d16 100644 +--- a/arch/x86/xen/smp.c ++++ b/arch/x86/xen/smp.c +@@ -215,11 +215,6 @@ static void __init xen_smp_prepare_boot_cpu(void) + { + BUG_ON(smp_processor_id() != 0); + native_smp_prepare_boot_cpu(); +- +- /* We've switched to the "real" per-cpu gdt, so make sure the +- old memory can be recycled */ +- make_lowmem_page_readwrite(xen_initial_gdt); +- + xen_filter_cpu_maps(); + xen_setup_vcpu_info_placement(); + } +@@ -296,12 +291,12 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle) + gdt = get_cpu_gdt_table(cpu); + + ctxt->flags = VGCF_IN_KERNEL; +- ctxt->user_regs.ds = __USER_DS; +- ctxt->user_regs.es = __USER_DS; ++ ctxt->user_regs.ds = __KERNEL_DS; ++ ctxt->user_regs.es = __KERNEL_DS; + ctxt->user_regs.ss = __KERNEL_DS; + #ifdef CONFIG_X86_32 + ctxt->user_regs.fs = __KERNEL_PERCPU; +- ctxt->user_regs.gs = __KERNEL_STACK_CANARY; ++ savesegment(gs, ctxt->user_regs.gs); + #else + ctxt->gs_base_kernel = per_cpu_offset(cpu); + #endif +@@ -352,13 +347,12 @@ static int __cpuinit xen_cpu_up(unsigned int cpu) + int rc; + + per_cpu(current_task, cpu) = idle; ++ per_cpu(current_tinfo, cpu) = &idle->tinfo; + #ifdef CONFIG_X86_32 + irq_ctx_init(cpu); + #else + clear_tsk_thread_flag(idle, TIF_FORK); +- per_cpu(kernel_stack, cpu) = +- (unsigned long)task_stack_page(idle) - +- KERNEL_STACK_OFFSET + THREAD_SIZE; ++ per_cpu(kernel_stack, cpu) = (unsigned long)task_stack_page(idle) - 16 + THREAD_SIZE; + #endif + xen_setup_runstate_info(cpu); + xen_setup_timer(cpu); +diff --git a/arch/x86/xen/xen-asm_32.S b/arch/x86/xen/xen-asm_32.S +index b040b0e..8cc4fe0 100644 +--- a/arch/x86/xen/xen-asm_32.S ++++ b/arch/x86/xen/xen-asm_32.S +@@ -83,14 +83,14 @@ ENTRY(xen_iret) + ESP_OFFSET=4 # bytes pushed onto stack + + /* +- * Store vcpu_info pointer for easy access. Do it this way to +- * avoid having to reload %fs ++ * Store vcpu_info pointer for easy access. + */ + #ifdef CONFIG_SMP +- GET_THREAD_INFO(%eax) +- movl TI_cpu(%eax), %eax +- movl __per_cpu_offset(,%eax,4), %eax +- mov xen_vcpu(%eax), %eax ++ push %fs ++ mov $(__KERNEL_PERCPU), %eax ++ mov %eax, %fs ++ mov PER_CPU_VAR(xen_vcpu), %eax ++ pop %fs + #else + movl xen_vcpu, %eax + #endif +diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S +index aaa7291..3f77960 100644 +--- a/arch/x86/xen/xen-head.S ++++ b/arch/x86/xen/xen-head.S +@@ -19,6 +19,17 @@ ENTRY(startup_xen) + #ifdef CONFIG_X86_32 + mov %esi,xen_start_info + mov $init_thread_union+THREAD_SIZE,%esp ++#ifdef CONFIG_SMP ++ movl $cpu_gdt_table,%edi ++ movl $__per_cpu_load,%eax ++ movw %ax,__KERNEL_PERCPU + 2(%edi) ++ rorl $16,%eax ++ movb %al,__KERNEL_PERCPU + 4(%edi) ++ movb %ah,__KERNEL_PERCPU + 7(%edi) ++ movl $__per_cpu_end - 1,%eax ++ subl $__per_cpu_start,%eax ++ movw %ax,__KERNEL_PERCPU + 0(%edi) ++#endif + #else + mov %rsi,xen_start_info + mov $init_thread_union+THREAD_SIZE,%rsp +diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h +index b095739..8c17bcd 100644 +--- a/arch/x86/xen/xen-ops.h ++++ b/arch/x86/xen/xen-ops.h +@@ -10,8 +10,6 @@ + extern const char xen_hypervisor_callback[]; + extern const char xen_failsafe_callback[]; + +-extern void *xen_initial_gdt; +- + struct trap_info; + void xen_copy_trap_info(struct trap_info *traps); + +diff --git a/arch/xtensa/variants/dc232b/include/variant/core.h b/arch/xtensa/variants/dc232b/include/variant/core.h +index 525bd3d..ef888b1 100644 +--- a/arch/xtensa/variants/dc232b/include/variant/core.h ++++ b/arch/xtensa/variants/dc232b/include/variant/core.h +@@ -119,9 +119,9 @@ + ----------------------------------------------------------------------*/ + + #define XCHAL_ICACHE_LINESIZE 32 /* I-cache line size in bytes */ +-#define XCHAL_DCACHE_LINESIZE 32 /* D-cache line size in bytes */ + #define XCHAL_ICACHE_LINEWIDTH 5 /* log2(I line size in bytes) */ + #define XCHAL_DCACHE_LINEWIDTH 5 /* log2(D line size in bytes) */ ++#define XCHAL_DCACHE_LINESIZE (_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH) /* D-cache line size in bytes */ + + #define XCHAL_ICACHE_SIZE 16384 /* I-cache size in bytes or 0 */ + #define XCHAL_DCACHE_SIZE 16384 /* D-cache size in bytes or 0 */ +diff --git a/arch/xtensa/variants/fsf/include/variant/core.h b/arch/xtensa/variants/fsf/include/variant/core.h +index 2f33760..835e50a 100644 +--- a/arch/xtensa/variants/fsf/include/variant/core.h ++++ b/arch/xtensa/variants/fsf/include/variant/core.h +@@ -11,6 +11,7 @@ + #ifndef _XTENSA_CORE_H + #define _XTENSA_CORE_H + ++#include <linux/const.h> + + /**************************************************************************** + Parameters Useful for Any Code, USER or PRIVILEGED +@@ -112,9 +113,9 @@ + ----------------------------------------------------------------------*/ + + #define XCHAL_ICACHE_LINESIZE 16 /* I-cache line size in bytes */ +-#define XCHAL_DCACHE_LINESIZE 16 /* D-cache line size in bytes */ + #define XCHAL_ICACHE_LINEWIDTH 4 /* log2(I line size in bytes) */ + #define XCHAL_DCACHE_LINEWIDTH 4 /* log2(D line size in bytes) */ ++#define XCHAL_DCACHE_LINESIZE (_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH) /* D-cache line size in bytes */ + + #define XCHAL_ICACHE_SIZE 8192 /* I-cache size in bytes or 0 */ + #define XCHAL_DCACHE_SIZE 8192 /* D-cache size in bytes or 0 */ +diff --git a/arch/xtensa/variants/s6000/include/variant/core.h b/arch/xtensa/variants/s6000/include/variant/core.h +index af00795..2bb8105 100644 +--- a/arch/xtensa/variants/s6000/include/variant/core.h ++++ b/arch/xtensa/variants/s6000/include/variant/core.h +@@ -11,6 +11,7 @@ + #ifndef _XTENSA_CORE_CONFIGURATION_H + #define _XTENSA_CORE_CONFIGURATION_H + ++#include <linux/const.h> + + /**************************************************************************** + Parameters Useful for Any Code, USER or PRIVILEGED +@@ -118,9 +119,9 @@ + ----------------------------------------------------------------------*/ + + #define XCHAL_ICACHE_LINESIZE 16 /* I-cache line size in bytes */ +-#define XCHAL_DCACHE_LINESIZE 16 /* D-cache line size in bytes */ + #define XCHAL_ICACHE_LINEWIDTH 4 /* log2(I line size in bytes) */ + #define XCHAL_DCACHE_LINEWIDTH 4 /* log2(D line size in bytes) */ ++#define XCHAL_DCACHE_LINESIZE (_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH) /* D-cache line size in bytes */ + + #define XCHAL_ICACHE_SIZE 32768 /* I-cache size in bytes or 0 */ + #define XCHAL_DCACHE_SIZE 32768 /* D-cache size in bytes or 0 */ +diff --git a/block/blk-iopoll.c b/block/blk-iopoll.c +index 58916af..9cb880b 100644 +--- a/block/blk-iopoll.c ++++ b/block/blk-iopoll.c +@@ -77,7 +77,7 @@ void blk_iopoll_complete(struct blk_iopoll *iopoll) + } + EXPORT_SYMBOL(blk_iopoll_complete); + +-static void blk_iopoll_softirq(struct softirq_action *h) ++static void blk_iopoll_softirq(void) + { + struct list_head *list = &__get_cpu_var(blk_cpu_iopoll); + int rearm = 0, budget = blk_iopoll_budget; +diff --git a/block/blk-map.c b/block/blk-map.c +index 623e1cd..ca1e109 100644 +--- a/block/blk-map.c ++++ b/block/blk-map.c +@@ -302,7 +302,7 @@ int blk_rq_map_kern(struct request_queue *q, struct request *rq, void *kbuf, + if (!len || !kbuf) + return -EINVAL; + +- do_copy = !blk_rq_aligned(q, addr, len) || object_is_on_stack(kbuf); ++ do_copy = !blk_rq_aligned(q, addr, len) || object_starts_on_stack(kbuf); + if (do_copy) + bio = bio_copy_kern(q, kbuf, len, gfp_mask, reading); + else +diff --git a/block/blk-softirq.c b/block/blk-softirq.c +index 467c8de..4bddc6d 100644 +--- a/block/blk-softirq.c ++++ b/block/blk-softirq.c +@@ -18,7 +18,7 @@ static DEFINE_PER_CPU(struct list_head, blk_cpu_done); + * Softirq action handler - move entries to local list and loop over them + * while passing them to the queue registered handler. + */ +-static void blk_done_softirq(struct softirq_action *h) ++static void blk_done_softirq(void) + { + struct list_head *cpu_list, local_list; + +diff --git a/block/bsg.c b/block/bsg.c +index ff64ae3..593560c 100644 +--- a/block/bsg.c ++++ b/block/bsg.c +@@ -176,16 +176,24 @@ static int blk_fill_sgv4_hdr_rq(struct request_queue *q, struct request *rq, + struct sg_io_v4 *hdr, struct bsg_device *bd, + fmode_t has_write_perm) + { ++ unsigned char tmpcmd[sizeof(rq->__cmd)]; ++ unsigned char *cmdptr; ++ + if (hdr->request_len > BLK_MAX_CDB) { + rq->cmd = kzalloc(hdr->request_len, GFP_KERNEL); + if (!rq->cmd) + return -ENOMEM; +- } ++ cmdptr = rq->cmd; ++ } else ++ cmdptr = tmpcmd; + +- if (copy_from_user(rq->cmd, (void __user *)(unsigned long)hdr->request, ++ if (copy_from_user(cmdptr, (void __user *)(unsigned long)hdr->request, + hdr->request_len)) + return -EFAULT; + ++ if (cmdptr != rq->cmd) ++ memcpy(rq->cmd, cmdptr, hdr->request_len); ++ + if (hdr->subprotocol == BSG_SUB_PROTOCOL_SCSI_CMD) { + if (blk_verify_command(rq->cmd, has_write_perm)) + return -EPERM; +diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c +index 7c668c8..db3521c 100644 +--- a/block/compat_ioctl.c ++++ b/block/compat_ioctl.c +@@ -340,7 +340,7 @@ static int compat_fd_ioctl(struct block_device *bdev, fmode_t mode, + err |= __get_user(f->spec1, &uf->spec1); + err |= __get_user(f->fmt_gap, &uf->fmt_gap); + err |= __get_user(name, &uf->name); +- f->name = compat_ptr(name); ++ f->name = (void __force_kernel *)compat_ptr(name); + if (err) { + err = -EFAULT; + goto out; +diff --git a/block/partitions/efi.c b/block/partitions/efi.c +index 6296b40..417c00f 100644 +--- a/block/partitions/efi.c ++++ b/block/partitions/efi.c +@@ -234,14 +234,14 @@ static gpt_entry *alloc_read_gpt_entries(struct parsed_partitions *state, + if (!gpt) + return NULL; + ++ if (!le32_to_cpu(gpt->num_partition_entries)) ++ return NULL; ++ pte = kcalloc(le32_to_cpu(gpt->num_partition_entries), le32_to_cpu(gpt->sizeof_partition_entry), GFP_KERNEL); ++ if (!pte) ++ return NULL; ++ + count = le32_to_cpu(gpt->num_partition_entries) * + le32_to_cpu(gpt->sizeof_partition_entry); +- if (!count) +- return NULL; +- pte = kzalloc(count, GFP_KERNEL); +- if (!pte) +- return NULL; +- + if (read_lba(state, le64_to_cpu(gpt->partition_entry_lba), + (u8 *) pte, + count) < count) { +diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c +index 260fa80..e8f3caf 100644 +--- a/block/scsi_ioctl.c ++++ b/block/scsi_ioctl.c +@@ -223,8 +223,20 @@ EXPORT_SYMBOL(blk_verify_command); + static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq, + struct sg_io_hdr *hdr, fmode_t mode) + { +- if (copy_from_user(rq->cmd, hdr->cmdp, hdr->cmd_len)) ++ unsigned char tmpcmd[sizeof(rq->__cmd)]; ++ unsigned char *cmdptr; ++ ++ if (rq->cmd != rq->__cmd) ++ cmdptr = rq->cmd; ++ else ++ cmdptr = tmpcmd; ++ ++ if (copy_from_user(cmdptr, hdr->cmdp, hdr->cmd_len)) + return -EFAULT; ++ ++ if (cmdptr != rq->cmd) ++ memcpy(rq->cmd, cmdptr, hdr->cmd_len); ++ + if (blk_verify_command(rq->cmd, mode & FMODE_WRITE)) + return -EPERM; + +@@ -433,6 +445,8 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode, + int err; + unsigned int in_len, out_len, bytes, opcode, cmdlen; + char *buffer = NULL, sense[SCSI_SENSE_BUFFERSIZE]; ++ unsigned char tmpcmd[sizeof(rq->__cmd)]; ++ unsigned char *cmdptr; + + if (!sic) + return -EINVAL; +@@ -466,9 +480,18 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode, + */ + err = -EFAULT; + rq->cmd_len = cmdlen; +- if (copy_from_user(rq->cmd, sic->data, cmdlen)) ++ ++ if (rq->cmd != rq->__cmd) ++ cmdptr = rq->cmd; ++ else ++ cmdptr = tmpcmd; ++ ++ if (copy_from_user(cmdptr, sic->data, cmdlen)) + goto error; + ++ if (rq->cmd != cmdptr) ++ memcpy(rq->cmd, cmdptr, cmdlen); ++ + if (in_len && copy_from_user(buffer, sic->data + cmdlen, in_len)) + goto error; + +diff --git a/crypto/cryptd.c b/crypto/cryptd.c +index 671d4d6..5f24030 100644 +--- a/crypto/cryptd.c ++++ b/crypto/cryptd.c +@@ -63,7 +63,7 @@ struct cryptd_blkcipher_ctx { + + struct cryptd_blkcipher_request_ctx { + crypto_completion_t complete; +-}; ++} __no_const; + + struct cryptd_hash_ctx { + struct crypto_shash *child; +@@ -80,7 +80,7 @@ struct cryptd_aead_ctx { + + struct cryptd_aead_request_ctx { + crypto_completion_t complete; +-}; ++} __no_const; + + static void cryptd_queue_worker(struct work_struct *work); + +diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c +index e6defd8..c26a225 100644 +--- a/drivers/acpi/apei/cper.c ++++ b/drivers/acpi/apei/cper.c +@@ -38,12 +38,12 @@ + */ + u64 cper_next_record_id(void) + { +- static atomic64_t seq; ++ static atomic64_unchecked_t seq; + +- if (!atomic64_read(&seq)) +- atomic64_set(&seq, ((u64)get_seconds()) << 32); ++ if (!atomic64_read_unchecked(&seq)) ++ atomic64_set_unchecked(&seq, ((u64)get_seconds()) << 32); + +- return atomic64_inc_return(&seq); ++ return atomic64_inc_return_unchecked(&seq); + } + EXPORT_SYMBOL_GPL(cper_next_record_id); + +diff --git a/drivers/acpi/ec_sys.c b/drivers/acpi/ec_sys.c +index 7586544..636a2f0 100644 +--- a/drivers/acpi/ec_sys.c ++++ b/drivers/acpi/ec_sys.c +@@ -12,6 +12,7 @@ + #include <linux/acpi.h> + #include <linux/debugfs.h> + #include <linux/module.h> ++#include <linux/uaccess.h> + #include "internal.h" + + MODULE_AUTHOR("Thomas Renninger <trenn(a)suse.de>"); +@@ -34,7 +35,7 @@ static ssize_t acpi_ec_read_io(struct file *f, char __user *buf, + * struct acpi_ec *ec = ((struct seq_file *)f->private_data)->private; + */ + unsigned int size = EC_SPACE_SIZE; +- u8 *data = (u8 *) buf; ++ u8 data; + loff_t init_off = *off; + int err = 0; + +@@ -47,9 +48,11 @@ static ssize_t acpi_ec_read_io(struct file *f, char __user *buf, + size = count; + + while (size) { +- err = ec_read(*off, &data[*off - init_off]); ++ err = ec_read(*off, &data); + if (err) + return err; ++ if (put_user(data, &buf[*off - init_off])) ++ return -EFAULT; + *off += 1; + size--; + } +@@ -65,7 +68,6 @@ static ssize_t acpi_ec_write_io(struct file *f, const char __user *buf, + + unsigned int size = count; + loff_t init_off = *off; +- u8 *data = (u8 *) buf; + int err = 0; + + if (*off >= EC_SPACE_SIZE) +@@ -76,7 +78,9 @@ static ssize_t acpi_ec_write_io(struct file *f, const char __user *buf, + } + + while (size) { +- u8 byte_write = data[*off - init_off]; ++ u8 byte_write; ++ if (get_user(byte_write, &buf[*off - init_off])) ++ return -EFAULT; + err = ec_write(*off, byte_write); + if (err) + return err; +diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c +index 251c7b62..000462d 100644 +--- a/drivers/acpi/proc.c ++++ b/drivers/acpi/proc.c +@@ -343,19 +343,13 @@ acpi_system_write_wakeup_device(struct file *file, + size_t count, loff_t * ppos) + { + struct list_head *node, *next; +- char strbuf[5]; +- char str[5] = ""; +- unsigned int len = count; ++ char strbuf[5] = {0}; + +- if (len > 4) +- len = 4; +- if (len < 0) ++ if (count > 4) ++ count = 4; ++ if (copy_from_user(strbuf, buffer, count)) + return -EFAULT; +- +- if (copy_from_user(strbuf, buffer, len)) +- return -EFAULT; +- strbuf[len] = '\0'; +- sscanf(strbuf, "%s", str); ++ strbuf[count] = '\0'; + + mutex_lock(&acpi_device_lock); + list_for_each_safe(node, next, &acpi_wakeup_device_list) { +@@ -364,7 +358,7 @@ acpi_system_write_wakeup_device(struct file *file, + if (!dev->wakeup.flags.valid) + continue; + +- if (!strncmp(dev->pnp.bus_id, str, 4)) { ++ if (!strncmp(dev->pnp.bus_id, strbuf, 4)) { + if (device_can_wakeup(&dev->dev)) { + bool enable = !device_may_wakeup(&dev->dev); + device_set_wakeup_enable(&dev->dev, enable); +diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c +index 0734086..3ad3e4c 100644 +--- a/drivers/acpi/processor_driver.c ++++ b/drivers/acpi/processor_driver.c +@@ -556,7 +556,7 @@ static int __cpuinit acpi_processor_add(struct acpi_device *device) + return 0; + #endif + +- BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0)); ++ BUG_ON(pr->id >= nr_cpu_ids); + + /* + * Buggy BIOS check +diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c +index d31ee55..8363a8b 100644 +--- a/drivers/ata/libata-core.c ++++ b/drivers/ata/libata-core.c +@@ -4742,7 +4742,7 @@ void ata_qc_free(struct ata_queued_cmd *qc) + struct ata_port *ap; + unsigned int tag; + +- WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */ ++ BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */ + ap = qc->ap; + + qc->flags = 0; +@@ -4758,7 +4758,7 @@ void __ata_qc_complete(struct ata_queued_cmd *qc) + struct ata_port *ap; + struct ata_link *link; + +- WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */ ++ BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */ + WARN_ON_ONCE(!(qc->flags & ATA_QCFLAG_ACTIVE)); + ap = qc->ap; + link = qc->dev->link; +@@ -5822,6 +5822,7 @@ static void ata_finalize_port_ops(struct ata_port_operations *ops) + return; + + spin_lock(&lock); ++ pax_open_kernel(); + + for (cur = ops->inherits; cur; cur = cur->inherits) { + void **inherit = (void **)cur; +@@ -5835,8 +5836,9 @@ static void ata_finalize_port_ops(struct ata_port_operations *ops) + if (IS_ERR(*pp)) + *pp = NULL; + +- ops->inherits = NULL; ++ *(struct ata_port_operations **)&ops->inherits = NULL; + ++ pax_close_kernel(); + spin_unlock(&lock); + } + +diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c +index 3239517..343b5f6 100644 +--- a/drivers/ata/pata_arasan_cf.c ++++ b/drivers/ata/pata_arasan_cf.c +@@ -862,7 +862,9 @@ static int __devinit arasan_cf_probe(struct platform_device *pdev) + /* Handle platform specific quirks */ + if (pdata->quirk) { + if (pdata->quirk & CF_BROKEN_PIO) { +- ap->ops->set_piomode = NULL; ++ pax_open_kernel(); ++ *(void **)&ap->ops->set_piomode = NULL; ++ pax_close_kernel(); + ap->pio_mask = 0; + } + if (pdata->quirk & CF_BROKEN_MWDMA) +diff --git a/drivers/atm/adummy.c b/drivers/atm/adummy.c +index f9b983a..887b9d8 100644 +--- a/drivers/atm/adummy.c ++++ b/drivers/atm/adummy.c +@@ -114,7 +114,7 @@ adummy_send(struct atm_vcc *vcc, struct sk_buff *skb) + vcc->pop(vcc, skb); + else + dev_kfree_skb_any(skb); +- atomic_inc(&vcc->stats->tx); ++ atomic_inc_unchecked(&vcc->stats->tx); + + return 0; + } +diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c +index f8f41e0..1f987dd 100644 +--- a/drivers/atm/ambassador.c ++++ b/drivers/atm/ambassador.c +@@ -454,7 +454,7 @@ static void tx_complete (amb_dev * dev, tx_out * tx) { + PRINTD (DBG_FLOW|DBG_TX, "tx_complete %p %p", dev, tx); + + // VC layer stats +- atomic_inc(&ATM_SKB(skb)->vcc->stats->tx); ++ atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx); + + // free the descriptor + kfree (tx_descr); +@@ -495,7 +495,7 @@ static void rx_complete (amb_dev * dev, rx_out * rx) { + dump_skb ("<<<", vc, skb); + + // VC layer stats +- atomic_inc(&atm_vcc->stats->rx); ++ atomic_inc_unchecked(&atm_vcc->stats->rx); + __net_timestamp(skb); + // end of our responsibility + atm_vcc->push (atm_vcc, skb); +@@ -510,7 +510,7 @@ static void rx_complete (amb_dev * dev, rx_out * rx) { + } else { + PRINTK (KERN_INFO, "dropped over-size frame"); + // should we count this? +- atomic_inc(&atm_vcc->stats->rx_drop); ++ atomic_inc_unchecked(&atm_vcc->stats->rx_drop); + } + + } else { +@@ -1338,7 +1338,7 @@ static int amb_send (struct atm_vcc * atm_vcc, struct sk_buff * skb) { + } + + if (check_area (skb->data, skb->len)) { +- atomic_inc(&atm_vcc->stats->tx_err); ++ atomic_inc_unchecked(&atm_vcc->stats->tx_err); + return -ENOMEM; // ? + } + +diff --git a/drivers/atm/atmtcp.c b/drivers/atm/atmtcp.c +index b22d71c..d6e1049 100644 +--- a/drivers/atm/atmtcp.c ++++ b/drivers/atm/atmtcp.c +@@ -207,7 +207,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb) + if (vcc->pop) vcc->pop(vcc,skb); + else dev_kfree_skb(skb); + if (dev_data) return 0; +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + return -ENOLINK; + } + size = skb->len+sizeof(struct atmtcp_hdr); +@@ -215,7 +215,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb) + if (!new_skb) { + if (vcc->pop) vcc->pop(vcc,skb); + else dev_kfree_skb(skb); +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + return -ENOBUFS; + } + hdr = (void *) skb_put(new_skb,sizeof(struct atmtcp_hdr)); +@@ -226,8 +226,8 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb) + if (vcc->pop) vcc->pop(vcc,skb); + else dev_kfree_skb(skb); + out_vcc->push(out_vcc,new_skb); +- atomic_inc(&vcc->stats->tx); +- atomic_inc(&out_vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->tx); ++ atomic_inc_unchecked(&out_vcc->stats->rx); + return 0; + } + +@@ -301,7 +301,7 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb) + out_vcc = find_vcc(dev, ntohs(hdr->vpi), ntohs(hdr->vci)); + read_unlock(&vcc_sklist_lock); + if (!out_vcc) { +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + goto done; + } + skb_pull(skb,sizeof(struct atmtcp_hdr)); +@@ -313,8 +313,8 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb) + __net_timestamp(new_skb); + skb_copy_from_linear_data(skb, skb_put(new_skb, skb->len), skb->len); + out_vcc->push(out_vcc,new_skb); +- atomic_inc(&vcc->stats->tx); +- atomic_inc(&out_vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->tx); ++ atomic_inc_unchecked(&out_vcc->stats->rx); + done: + if (vcc->pop) vcc->pop(vcc,skb); + else dev_kfree_skb(skb); +diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c +index 2059ee4..faf51c7 100644 +--- a/drivers/atm/eni.c ++++ b/drivers/atm/eni.c +@@ -522,7 +522,7 @@ static int rx_aal0(struct atm_vcc *vcc) + DPRINTK(DEV_LABEL "(itf %d): trashing empty cell\n", + vcc->dev->number); + length = 0; +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + } + else { + length = ATM_CELL_SIZE-1; /* no HEC */ +@@ -577,7 +577,7 @@ static int rx_aal5(struct atm_vcc *vcc) + size); + } + eff = length = 0; +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + } + else { + size = (descr & MID_RED_COUNT)*(ATM_CELL_PAYLOAD >> 2); +@@ -594,7 +594,7 @@ static int rx_aal5(struct atm_vcc *vcc) + "(VCI=%d,length=%ld,size=%ld (descr 0x%lx))\n", + vcc->dev->number,vcc->vci,length,size << 2,descr); + length = eff = 0; +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + } + } + skb = eff ? atm_alloc_charge(vcc,eff << 2,GFP_ATOMIC) : NULL; +@@ -767,7 +767,7 @@ rx_dequeued++; + vcc->push(vcc,skb); + pushed++; + } +- atomic_inc(&vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->rx); + } + wake_up(&eni_dev->rx_wait); + } +@@ -1227,7 +1227,7 @@ static void dequeue_tx(struct atm_dev *dev) + PCI_DMA_TODEVICE); + if (vcc->pop) vcc->pop(vcc,skb); + else dev_kfree_skb_irq(skb); +- atomic_inc(&vcc->stats->tx); ++ atomic_inc_unchecked(&vcc->stats->tx); + wake_up(&eni_dev->tx_wait); + dma_complete++; + } +@@ -1567,7 +1567,7 @@ tx_complete++; + /*--------------------------------- entries ---------------------------------*/ + + +-static const char *media_name[] __devinitdata = { ++static const char *media_name[] __devinitconst = { + "MMF", "SMF", "MMF", "03?", /* 0- 3 */ + "UTP", "05?", "06?", "07?", /* 4- 7 */ + "TAXI","09?", "10?", "11?", /* 8-11 */ +diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c +index 86fed1b..6dc4721 100644 +--- a/drivers/atm/firestream.c ++++ b/drivers/atm/firestream.c +@@ -749,7 +749,7 @@ static void process_txdone_queue (struct fs_dev *dev, struct queue *q) + } + } + +- atomic_inc(&ATM_SKB(skb)->vcc->stats->tx); ++ atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx); + + fs_dprintk (FS_DEBUG_TXMEM, "i"); + fs_dprintk (FS_DEBUG_ALLOC, "Free t-skb: %p\n", skb); +@@ -816,7 +816,7 @@ static void process_incoming (struct fs_dev *dev, struct queue *q) + #endif + skb_put (skb, qe->p1 & 0xffff); + ATM_SKB(skb)->vcc = atm_vcc; +- atomic_inc(&atm_vcc->stats->rx); ++ atomic_inc_unchecked(&atm_vcc->stats->rx); + __net_timestamp(skb); + fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p (pushed)\n", skb); + atm_vcc->push (atm_vcc, skb); +@@ -837,12 +837,12 @@ static void process_incoming (struct fs_dev *dev, struct queue *q) + kfree (pe); + } + if (atm_vcc) +- atomic_inc(&atm_vcc->stats->rx_drop); ++ atomic_inc_unchecked(&atm_vcc->stats->rx_drop); + break; + case 0x1f: /* Reassembly abort: no buffers. */ + /* Silently increment error counter. */ + if (atm_vcc) +- atomic_inc(&atm_vcc->stats->rx_drop); ++ atomic_inc_unchecked(&atm_vcc->stats->rx_drop); + break; + default: /* Hmm. Haven't written the code to handle the others yet... -- REW */ + printk (KERN_WARNING "Don't know what to do with RX status %x: %s.\n", +diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c +index 361f5ae..7fc552d 100644 +--- a/drivers/atm/fore200e.c ++++ b/drivers/atm/fore200e.c +@@ -933,9 +933,9 @@ fore200e_tx_irq(struct fore200e* fore200e) + #endif + /* check error condition */ + if (*entry->status & STATUS_ERROR) +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + else +- atomic_inc(&vcc->stats->tx); ++ atomic_inc_unchecked(&vcc->stats->tx); + } + } + +@@ -1084,7 +1084,7 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp + if (skb == NULL) { + DPRINTK(2, "unable to alloc new skb, rx PDU length = %d\n", pdu_len); + +- atomic_inc(&vcc->stats->rx_drop); ++ atomic_inc_unchecked(&vcc->stats->rx_drop); + return -ENOMEM; + } + +@@ -1127,14 +1127,14 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp + + dev_kfree_skb_any(skb); + +- atomic_inc(&vcc->stats->rx_drop); ++ atomic_inc_unchecked(&vcc->stats->rx_drop); + return -ENOMEM; + } + + ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0); + + vcc->push(vcc, skb); +- atomic_inc(&vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->rx); + + ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0); + +@@ -1212,7 +1212,7 @@ fore200e_rx_irq(struct fore200e* fore200e) + DPRINTK(2, "damaged PDU on %d.%d.%d\n", + fore200e->atm_dev->number, + entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci); +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + } + } + +@@ -1657,7 +1657,7 @@ fore200e_send(struct atm_vcc *vcc, struct sk_buff *skb) + goto retry_here; + } + +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + + fore200e->tx_sat++; + DPRINTK(2, "tx queue of device %s is saturated, PDU dropped - heartbeat is %08x\n", +diff --git a/drivers/atm/he.c b/drivers/atm/he.c +index b182c2f..1c6fa8a 100644 +--- a/drivers/atm/he.c ++++ b/drivers/atm/he.c +@@ -1709,7 +1709,7 @@ he_service_rbrq(struct he_dev *he_dev, int group) + + if (RBRQ_HBUF_ERR(he_dev->rbrq_head)) { + hprintk("HBUF_ERR! (cid 0x%x)\n", cid); +- atomic_inc(&vcc->stats->rx_drop); ++ atomic_inc_unchecked(&vcc->stats->rx_drop); + goto return_host_buffers; + } + +@@ -1736,7 +1736,7 @@ he_service_rbrq(struct he_dev *he_dev, int group) + RBRQ_LEN_ERR(he_dev->rbrq_head) + ? "LEN_ERR" : "", + vcc->vpi, vcc->vci); +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + goto return_host_buffers; + } + +@@ -1788,7 +1788,7 @@ he_service_rbrq(struct he_dev *he_dev, int group) + vcc->push(vcc, skb); + spin_lock(&he_dev->global_lock); + +- atomic_inc(&vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->rx); + + return_host_buffers: + ++pdus_assembled; +@@ -2114,7 +2114,7 @@ __enqueue_tpd(struct he_dev *he_dev, struct he_tpd *tpd, unsigned cid) + tpd->vcc->pop(tpd->vcc, tpd->skb); + else + dev_kfree_skb_any(tpd->skb); +- atomic_inc(&tpd->vcc->stats->tx_err); ++ atomic_inc_unchecked(&tpd->vcc->stats->tx_err); + } + pci_pool_free(he_dev->tpd_pool, tpd, TPD_ADDR(tpd->status)); + return; +@@ -2526,7 +2526,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb) + vcc->pop(vcc, skb); + else + dev_kfree_skb_any(skb); +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + return -EINVAL; + } + +@@ -2537,7 +2537,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb) + vcc->pop(vcc, skb); + else + dev_kfree_skb_any(skb); +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + return -EINVAL; + } + #endif +@@ -2549,7 +2549,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb) + vcc->pop(vcc, skb); + else + dev_kfree_skb_any(skb); +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + spin_unlock_irqrestore(&he_dev->global_lock, flags); + return -ENOMEM; + } +@@ -2591,7 +2591,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb) + vcc->pop(vcc, skb); + else + dev_kfree_skb_any(skb); +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + spin_unlock_irqrestore(&he_dev->global_lock, flags); + return -ENOMEM; + } +@@ -2622,7 +2622,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb) + __enqueue_tpd(he_dev, tpd, cid); + spin_unlock_irqrestore(&he_dev->global_lock, flags); + +- atomic_inc(&vcc->stats->tx); ++ atomic_inc_unchecked(&vcc->stats->tx); + + return 0; + } +diff --git a/drivers/atm/horizon.c b/drivers/atm/horizon.c +index 75fd691..2d20b14 100644 +--- a/drivers/atm/horizon.c ++++ b/drivers/atm/horizon.c +@@ -1034,7 +1034,7 @@ static void rx_schedule (hrz_dev * dev, int irq) { + { + struct atm_vcc * vcc = ATM_SKB(skb)->vcc; + // VC layer stats +- atomic_inc(&vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->rx); + __net_timestamp(skb); + // end of our responsibility + vcc->push (vcc, skb); +@@ -1186,7 +1186,7 @@ static void tx_schedule (hrz_dev * const dev, int irq) { + dev->tx_iovec = NULL; + + // VC layer stats +- atomic_inc(&ATM_SKB(skb)->vcc->stats->tx); ++ atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx); + + // free the skb + hrz_kfree_skb (skb); +diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c +index 1c05212..c28e200 100644 +--- a/drivers/atm/idt77252.c ++++ b/drivers/atm/idt77252.c +@@ -812,7 +812,7 @@ drain_scq(struct idt77252_dev *card, struct vc_map *vc) + else + dev_kfree_skb(skb); + +- atomic_inc(&vcc->stats->tx); ++ atomic_inc_unchecked(&vcc->stats->tx); + } + + atomic_dec(&scq->used); +@@ -1075,13 +1075,13 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe) + if ((sb = dev_alloc_skb(64)) == NULL) { + printk("%s: Can't allocate buffers for aal0.\n", + card->name); +- atomic_add(i, &vcc->stats->rx_drop); ++ atomic_add_unchecked(i, &vcc->stats->rx_drop); + break; + } + if (!atm_charge(vcc, sb->truesize)) { + RXPRINTK("%s: atm_charge() dropped aal0 packets.\n", + card->name); +- atomic_add(i - 1, &vcc->stats->rx_drop); ++ atomic_add_unchecked(i - 1, &vcc->stats->rx_drop); + dev_kfree_skb(sb); + break; + } +@@ -1098,7 +1098,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe) + ATM_SKB(sb)->vcc = vcc; + __net_timestamp(sb); + vcc->push(vcc, sb); +- atomic_inc(&vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->rx); + + cell += ATM_CELL_PAYLOAD; + } +@@ -1135,13 +1135,13 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe) + "(CDC: %08x)\n", + card->name, len, rpp->len, readl(SAR_REG_CDC)); + recycle_rx_pool_skb(card, rpp); +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + return; + } + if (stat & SAR_RSQE_CRC) { + RXPRINTK("%s: AAL5 CRC error.\n", card->name); + recycle_rx_pool_skb(card, rpp); +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + return; + } + if (skb_queue_len(&rpp->queue) > 1) { +@@ -1152,7 +1152,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe) + RXPRINTK("%s: Can't alloc RX skb.\n", + card->name); + recycle_rx_pool_skb(card, rpp); +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + return; + } + if (!atm_charge(vcc, skb->truesize)) { +@@ -1171,7 +1171,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe) + __net_timestamp(skb); + + vcc->push(vcc, skb); +- atomic_inc(&vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->rx); + + return; + } +@@ -1193,7 +1193,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe) + __net_timestamp(skb); + + vcc->push(vcc, skb); +- atomic_inc(&vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->rx); + + if (skb->truesize > SAR_FB_SIZE_3) + add_rx_skb(card, 3, SAR_FB_SIZE_3, 1); +@@ -1304,14 +1304,14 @@ idt77252_rx_raw(struct idt77252_dev *card) + if (vcc->qos.aal != ATM_AAL0) { + RPRINTK("%s: raw cell for non AAL0 vc %u.%u\n", + card->name, vpi, vci); +- atomic_inc(&vcc->stats->rx_drop); ++ atomic_inc_unchecked(&vcc->stats->rx_drop); + goto drop; + } + + if ((sb = dev_alloc_skb(64)) == NULL) { + printk("%s: Can't allocate buffers for AAL0.\n", + card->name); +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + goto drop; + } + +@@ -1330,7 +1330,7 @@ idt77252_rx_raw(struct idt77252_dev *card) + ATM_SKB(sb)->vcc = vcc; + __net_timestamp(sb); + vcc->push(vcc, sb); +- atomic_inc(&vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->rx); + + drop: + skb_pull(queue, 64); +@@ -1955,13 +1955,13 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam) + + if (vc == NULL) { + printk("%s: NULL connection in send().\n", card->name); +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + dev_kfree_skb(skb); + return -EINVAL; + } + if (!test_bit(VCF_TX, &vc->flags)) { + printk("%s: Trying to transmit on a non-tx VC.\n", card->name); +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + dev_kfree_skb(skb); + return -EINVAL; + } +@@ -1973,14 +1973,14 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam) + break; + default: + printk("%s: Unsupported AAL: %d\n", card->name, vcc->qos.aal); +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + dev_kfree_skb(skb); + return -EINVAL; + } + + if (skb_shinfo(skb)->nr_frags != 0) { + printk("%s: No scatter-gather yet.\n", card->name); +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + dev_kfree_skb(skb); + return -EINVAL; + } +@@ -1988,7 +1988,7 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam) + + err = queue_skb(card, vc, skb, oam); + if (err) { +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + dev_kfree_skb(skb); + return err; + } +@@ -2011,7 +2011,7 @@ idt77252_send_oam(struct atm_vcc *vcc, void *cell, int flags) + skb = dev_alloc_skb(64); + if (!skb) { + printk("%s: Out of memory in send_oam().\n", card->name); +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + return -ENOMEM; + } + atomic_add(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc); +diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c +index d438601..8b98495 100644 +--- a/drivers/atm/iphase.c ++++ b/drivers/atm/iphase.c +@@ -1145,7 +1145,7 @@ static int rx_pkt(struct atm_dev *dev) + status = (u_short) (buf_desc_ptr->desc_mode); + if (status & (RX_CER | RX_PTE | RX_OFL)) + { +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + IF_ERR(printk("IA: bad packet, dropping it");) + if (status & RX_CER) { + IF_ERR(printk(" cause: packet CRC error\n");) +@@ -1168,7 +1168,7 @@ static int rx_pkt(struct atm_dev *dev) + len = dma_addr - buf_addr; + if (len > iadev->rx_buf_sz) { + printk("Over %d bytes sdu received, dropped!!!\n", iadev->rx_buf_sz); +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + goto out_free_desc; + } + +@@ -1318,7 +1318,7 @@ static void rx_dle_intr(struct atm_dev *dev) + ia_vcc = INPH_IA_VCC(vcc); + if (ia_vcc == NULL) + { +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + atm_return(vcc, skb->truesize); + dev_kfree_skb_any(skb); + goto INCR_DLE; +@@ -1330,7 +1330,7 @@ static void rx_dle_intr(struct atm_dev *dev) + if ((length > iadev->rx_buf_sz) || (length > + (skb->len - sizeof(struct cpcs_trailer)))) + { +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + IF_ERR(printk("rx_dle_intr: Bad AAL5 trailer %d (skb len %d)", + length, skb->len);) + atm_return(vcc, skb->truesize); +@@ -1346,7 +1346,7 @@ static void rx_dle_intr(struct atm_dev *dev) + + IF_RX(printk("rx_dle_intr: skb push");) + vcc->push(vcc,skb); +- atomic_inc(&vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->rx); + iadev->rx_pkt_cnt++; + } + INCR_DLE: +@@ -2826,15 +2826,15 @@ static int ia_ioctl(struct atm_dev *dev, unsigned int cmd, void __user *arg) + { + struct k_sonet_stats *stats; + stats = &PRIV(_ia_dev[board])->sonet_stats; +- printk("section_bip: %d\n", atomic_read(&stats->section_bip)); +- printk("line_bip : %d\n", atomic_read(&stats->line_bip)); +- printk("path_bip : %d\n", atomic_read(&stats->path_bip)); +- printk("line_febe : %d\n", atomic_read(&stats->line_febe)); +- printk("path_febe : %d\n", atomic_read(&stats->path_febe)); +- printk("corr_hcs : %d\n", atomic_read(&stats->corr_hcs)); +- printk("uncorr_hcs : %d\n", atomic_read(&stats->uncorr_hcs)); +- printk("tx_cells : %d\n", atomic_read(&stats->tx_cells)); +- printk("rx_cells : %d\n", atomic_read(&stats->rx_cells)); ++ printk("section_bip: %d\n", atomic_read_unchecked(&stats->section_bip)); ++ printk("line_bip : %d\n", atomic_read_unchecked(&stats->line_bip)); ++ printk("path_bip : %d\n", atomic_read_unchecked(&stats->path_bip)); ++ printk("line_febe : %d\n", atomic_read_unchecked(&stats->line_febe)); ++ printk("path_febe : %d\n", atomic_read_unchecked(&stats->path_febe)); ++ printk("corr_hcs : %d\n", atomic_read_unchecked(&stats->corr_hcs)); ++ printk("uncorr_hcs : %d\n", atomic_read_unchecked(&stats->uncorr_hcs)); ++ printk("tx_cells : %d\n", atomic_read_unchecked(&stats->tx_cells)); ++ printk("rx_cells : %d\n", atomic_read_unchecked(&stats->rx_cells)); + } + ia_cmds.status = 0; + break; +@@ -2939,7 +2939,7 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) { + if ((desc == 0) || (desc > iadev->num_tx_desc)) + { + IF_ERR(printk(DEV_LABEL "invalid desc for send: %d\n", desc);) +- atomic_inc(&vcc->stats->tx); ++ atomic_inc_unchecked(&vcc->stats->tx); + if (vcc->pop) + vcc->pop(vcc, skb); + else +@@ -3044,14 +3044,14 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) { + ATM_DESC(skb) = vcc->vci; + skb_queue_tail(&iadev->tx_dma_q, skb); + +- atomic_inc(&vcc->stats->tx); ++ atomic_inc_unchecked(&vcc->stats->tx); + iadev->tx_pkt_cnt++; + /* Increment transaction counter */ + writel(2, iadev->dma+IPHASE5575_TX_COUNTER); + + #if 0 + /* add flow control logic */ +- if (atomic_read(&vcc->stats->tx) % 20 == 0) { ++ if (atomic_read_unchecked(&vcc->stats->tx) % 20 == 0) { + if (iavcc->vc_desc_cnt > 10) { + vcc->tx_quota = vcc->tx_quota * 3 / 4; + printk("Tx1: vcc->tx_quota = %d \n", (u32)vcc->tx_quota ); +diff --git a/drivers/atm/lanai.c b/drivers/atm/lanai.c +index 68c7588..7036683 100644 +--- a/drivers/atm/lanai.c ++++ b/drivers/atm/lanai.c +@@ -1303,7 +1303,7 @@ static void lanai_send_one_aal5(struct lanai_dev *lanai, + vcc_tx_add_aal5_trailer(lvcc, skb->len, 0, 0); + lanai_endtx(lanai, lvcc); + lanai_free_skb(lvcc->tx.atmvcc, skb); +- atomic_inc(&lvcc->tx.atmvcc->stats->tx); ++ atomic_inc_unchecked(&lvcc->tx.atmvcc->stats->tx); + } + + /* Try to fill the buffer - don't call unless there is backlog */ +@@ -1426,7 +1426,7 @@ static void vcc_rx_aal5(struct lanai_vcc *lvcc, int endptr) + ATM_SKB(skb)->vcc = lvcc->rx.atmvcc; + __net_timestamp(skb); + lvcc->rx.atmvcc->push(lvcc->rx.atmvcc, skb); +- atomic_inc(&lvcc->rx.atmvcc->stats->rx); ++ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx); + out: + lvcc->rx.buf.ptr = end; + cardvcc_write(lvcc, endptr, vcc_rxreadptr); +@@ -1667,7 +1667,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s) + DPRINTK("(itf %d) got RX service entry 0x%X for non-AAL5 " + "vcc %d\n", lanai->number, (unsigned int) s, vci); + lanai->stats.service_rxnotaal5++; +- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err); ++ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err); + return 0; + } + if (likely(!(s & (SERVICE_TRASH | SERVICE_STREAM | SERVICE_CRCERR)))) { +@@ -1679,7 +1679,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s) + int bytes; + read_unlock(&vcc_sklist_lock); + DPRINTK("got trashed rx pdu on vci %d\n", vci); +- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err); ++ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err); + lvcc->stats.x.aal5.service_trash++; + bytes = (SERVICE_GET_END(s) * 16) - + (((unsigned long) lvcc->rx.buf.ptr) - +@@ -1691,7 +1691,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s) + } + if (s & SERVICE_STREAM) { + read_unlock(&vcc_sklist_lock); +- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err); ++ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err); + lvcc->stats.x.aal5.service_stream++; + printk(KERN_ERR DEV_LABEL "(itf %d): Got AAL5 stream " + "PDU on VCI %d!\n", lanai->number, vci); +@@ -1699,7 +1699,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s) + return 0; + } + DPRINTK("got rx crc error on vci %d\n", vci); +- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err); ++ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err); + lvcc->stats.x.aal5.service_rxcrc++; + lvcc->rx.buf.ptr = &lvcc->rx.buf.start[SERVICE_GET_END(s) * 4]; + cardvcc_write(lvcc, SERVICE_GET_END(s), vcc_rxreadptr); +diff --git a/drivers/atm/nicstar.c b/drivers/atm/nicstar.c +index 1c70c45..300718d 100644 +--- a/drivers/atm/nicstar.c ++++ b/drivers/atm/nicstar.c +@@ -1654,7 +1654,7 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb) + if ((vc = (vc_map *) vcc->dev_data) == NULL) { + printk("nicstar%d: vcc->dev_data == NULL on ns_send().\n", + card->index); +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + dev_kfree_skb_any(skb); + return -EINVAL; + } +@@ -1662,7 +1662,7 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb) + if (!vc->tx) { + printk("nicstar%d: Trying to transmit on a non-tx VC.\n", + card->index); +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + dev_kfree_skb_any(skb); + return -EINVAL; + } +@@ -1670,14 +1670,14 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb) + if (vcc->qos.aal != ATM_AAL5 && vcc->qos.aal != ATM_AAL0) { + printk("nicstar%d: Only AAL0 and AAL5 are supported.\n", + card->index); +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + dev_kfree_skb_any(skb); + return -EINVAL; + } + + if (skb_shinfo(skb)->nr_frags != 0) { + printk("nicstar%d: No scatter-gather yet.\n", card->index); +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + dev_kfree_skb_any(skb); + return -EINVAL; + } +@@ -1725,11 +1725,11 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb) + } + + if (push_scqe(card, vc, scq, &scqe, skb) != 0) { +- atomic_inc(&vcc->stats->tx_err); ++ atomic_inc_unchecked(&vcc->stats->tx_err); + dev_kfree_skb_any(skb); + return -EIO; + } +- atomic_inc(&vcc->stats->tx); ++ atomic_inc_unchecked(&vcc->stats->tx); + + return 0; + } +@@ -2046,14 +2046,14 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) + printk + ("nicstar%d: Can't allocate buffers for aal0.\n", + card->index); +- atomic_add(i, &vcc->stats->rx_drop); ++ atomic_add_unchecked(i, &vcc->stats->rx_drop); + break; + } + if (!atm_charge(vcc, sb->truesize)) { + RXPRINTK + ("nicstar%d: atm_charge() dropped aal0 packets.\n", + card->index); +- atomic_add(i - 1, &vcc->stats->rx_drop); /* already increased by 1 */ ++ atomic_add_unchecked(i - 1, &vcc->stats->rx_drop); /* already increased by 1 */ + dev_kfree_skb_any(sb); + break; + } +@@ -2068,7 +2068,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) + ATM_SKB(sb)->vcc = vcc; + __net_timestamp(sb); + vcc->push(vcc, sb); +- atomic_inc(&vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->rx); + cell += ATM_CELL_PAYLOAD; + } + +@@ -2085,7 +2085,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) + if (iovb == NULL) { + printk("nicstar%d: Out of iovec buffers.\n", + card->index); +- atomic_inc(&vcc->stats->rx_drop); ++ atomic_inc_unchecked(&vcc->stats->rx_drop); + recycle_rx_buf(card, skb); + return; + } +@@ -2109,7 +2109,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) + small or large buffer itself. */ + } else if (NS_PRV_IOVCNT(iovb) >= NS_MAX_IOVECS) { + printk("nicstar%d: received too big AAL5 SDU.\n", card->index); +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data, + NS_MAX_IOVECS); + NS_PRV_IOVCNT(iovb) = 0; +@@ -2129,7 +2129,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) + ("nicstar%d: Expected a small buffer, and this is not one.\n", + card->index); + which_list(card, skb); +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + recycle_rx_buf(card, skb); + vc->rx_iov = NULL; + recycle_iov_buf(card, iovb); +@@ -2142,7 +2142,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) + ("nicstar%d: Expected a large buffer, and this is not one.\n", + card->index); + which_list(card, skb); +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data, + NS_PRV_IOVCNT(iovb)); + vc->rx_iov = NULL; +@@ -2165,7 +2165,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) + printk(" - PDU size mismatch.\n"); + else + printk(".\n"); +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data, + NS_PRV_IOVCNT(iovb)); + vc->rx_iov = NULL; +@@ -2179,7 +2179,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) + /* skb points to a small buffer */ + if (!atm_charge(vcc, skb->truesize)) { + push_rxbufs(card, skb); +- atomic_inc(&vcc->stats->rx_drop); ++ atomic_inc_unchecked(&vcc->stats->rx_drop); + } else { + skb_put(skb, len); + dequeue_sm_buf(card, skb); +@@ -2189,7 +2189,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) + ATM_SKB(skb)->vcc = vcc; + __net_timestamp(skb); + vcc->push(vcc, skb); +- atomic_inc(&vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->rx); + } + } else if (NS_PRV_IOVCNT(iovb) == 2) { /* One small plus one large buffer */ + struct sk_buff *sb; +@@ -2200,7 +2200,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) + if (len <= NS_SMBUFSIZE) { + if (!atm_charge(vcc, sb->truesize)) { + push_rxbufs(card, sb); +- atomic_inc(&vcc->stats->rx_drop); ++ atomic_inc_unchecked(&vcc->stats->rx_drop); + } else { + skb_put(sb, len); + dequeue_sm_buf(card, sb); +@@ -2210,7 +2210,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) + ATM_SKB(sb)->vcc = vcc; + __net_timestamp(sb); + vcc->push(vcc, sb); +- atomic_inc(&vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->rx); + } + + push_rxbufs(card, skb); +@@ -2219,7 +2219,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) + + if (!atm_charge(vcc, skb->truesize)) { + push_rxbufs(card, skb); +- atomic_inc(&vcc->stats->rx_drop); ++ atomic_inc_unchecked(&vcc->stats->rx_drop); + } else { + dequeue_lg_buf(card, skb); + #ifdef NS_USE_DESTRUCTORS +@@ -2232,7 +2232,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) + ATM_SKB(skb)->vcc = vcc; + __net_timestamp(skb); + vcc->push(vcc, skb); +- atomic_inc(&vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->rx); + } + + push_rxbufs(card, sb); +@@ -2253,7 +2253,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) + printk + ("nicstar%d: Out of huge buffers.\n", + card->index); +- atomic_inc(&vcc->stats->rx_drop); ++ atomic_inc_unchecked(&vcc->stats->rx_drop); + recycle_iovec_rx_bufs(card, + (struct iovec *) + iovb->data, +@@ -2304,7 +2304,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) + card->hbpool.count++; + } else + dev_kfree_skb_any(hb); +- atomic_inc(&vcc->stats->rx_drop); ++ atomic_inc_unchecked(&vcc->stats->rx_drop); + } else { + /* Copy the small buffer to the huge buffer */ + sb = (struct sk_buff *)iov->iov_base; +@@ -2341,7 +2341,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe) + #endif /* NS_USE_DESTRUCTORS */ + __net_timestamp(hb); + vcc->push(vcc, hb); +- atomic_inc(&vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->rx); + } + } + +diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c +index 9851093..adb2b1e 100644 +--- a/drivers/atm/solos-pci.c ++++ b/drivers/atm/solos-pci.c +@@ -714,7 +714,7 @@ void solos_bh(unsigned long card_arg) + } + atm_charge(vcc, skb->truesize); + vcc->push(vcc, skb); +- atomic_inc(&vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->rx); + break; + + case PKT_STATUS: +@@ -1009,7 +1009,7 @@ static uint32_t fpga_tx(struct solos_card *card) + vcc = SKB_CB(oldskb)->vcc; + + if (vcc) { +- atomic_inc(&vcc->stats->tx); ++ atomic_inc_unchecked(&vcc->stats->tx); + solos_pop(vcc, oldskb); + } else + dev_kfree_skb_irq(oldskb); +diff --git a/drivers/atm/suni.c b/drivers/atm/suni.c +index 0215934..ce9f5b1 100644 +--- a/drivers/atm/suni.c ++++ b/drivers/atm/suni.c +@@ -49,8 +49,8 @@ static DEFINE_SPINLOCK(sunis_lock); + + + #define ADD_LIMITED(s,v) \ +- atomic_add((v),&stats->s); \ +- if (atomic_read(&stats->s) < 0) atomic_set(&stats->s,INT_MAX); ++ atomic_add_unchecked((v),&stats->s); \ ++ if (atomic_read_unchecked(&stats->s) < 0) atomic_set_unchecked(&stats->s,INT_MAX); + + + static void suni_hz(unsigned long from_timer) +diff --git a/drivers/atm/uPD98402.c b/drivers/atm/uPD98402.c +index 5120a96..e2572bd 100644 +--- a/drivers/atm/uPD98402.c ++++ b/drivers/atm/uPD98402.c +@@ -42,7 +42,7 @@ static int fetch_stats(struct atm_dev *dev,struct sonet_stats __user *arg,int ze + struct sonet_stats tmp; + int error = 0; + +- atomic_add(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs); ++ atomic_add_unchecked(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs); + sonet_copy_stats(&PRIV(dev)->sonet_stats,&tmp); + if (arg) error = copy_to_user(arg,&tmp,sizeof(tmp)); + if (zero && !error) { +@@ -161,9 +161,9 @@ static int uPD98402_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg) + + + #define ADD_LIMITED(s,v) \ +- { atomic_add(GET(v),&PRIV(dev)->sonet_stats.s); \ +- if (atomic_read(&PRIV(dev)->sonet_stats.s) < 0) \ +- atomic_set(&PRIV(dev)->sonet_stats.s,INT_MAX); } ++ { atomic_add_unchecked(GET(v),&PRIV(dev)->sonet_stats.s); \ ++ if (atomic_read_unchecked(&PRIV(dev)->sonet_stats.s) < 0) \ ++ atomic_set_unchecked(&PRIV(dev)->sonet_stats.s,INT_MAX); } + + + static void stat_event(struct atm_dev *dev) +@@ -194,7 +194,7 @@ static void uPD98402_int(struct atm_dev *dev) + if (reason & uPD98402_INT_PFM) stat_event(dev); + if (reason & uPD98402_INT_PCO) { + (void) GET(PCOCR); /* clear interrupt cause */ +- atomic_add(GET(HECCT), ++ atomic_add_unchecked(GET(HECCT), + &PRIV(dev)->sonet_stats.uncorr_hcs); + } + if ((reason & uPD98402_INT_RFO) && +@@ -222,9 +222,9 @@ static int uPD98402_start(struct atm_dev *dev) + PUT(~(uPD98402_INT_PFM | uPD98402_INT_ALM | uPD98402_INT_RFO | + uPD98402_INT_LOS),PIMR); /* enable them */ + (void) fetch_stats(dev,NULL,1); /* clear kernel counters */ +- atomic_set(&PRIV(dev)->sonet_stats.corr_hcs,-1); +- atomic_set(&PRIV(dev)->sonet_stats.tx_cells,-1); +- atomic_set(&PRIV(dev)->sonet_stats.rx_cells,-1); ++ atomic_set_unchecked(&PRIV(dev)->sonet_stats.corr_hcs,-1); ++ atomic_set_unchecked(&PRIV(dev)->sonet_stats.tx_cells,-1); ++ atomic_set_unchecked(&PRIV(dev)->sonet_stats.rx_cells,-1); + return 0; + } + +diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c +index abe4e20..83c4727 100644 +--- a/drivers/atm/zatm.c ++++ b/drivers/atm/zatm.c +@@ -459,7 +459,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]); + } + if (!size) { + dev_kfree_skb_irq(skb); +- if (vcc) atomic_inc(&vcc->stats->rx_err); ++ if (vcc) atomic_inc_unchecked(&vcc->stats->rx_err); + continue; + } + if (!atm_charge(vcc,skb->truesize)) { +@@ -469,7 +469,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]); + skb->len = size; + ATM_SKB(skb)->vcc = vcc; + vcc->push(vcc,skb); +- atomic_inc(&vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->rx); + } + zout(pos & 0xffff,MTA(mbx)); + #if 0 /* probably a stupid idea */ +@@ -733,7 +733,7 @@ if (*ZATM_PRV_DSC(skb) != (uPD98401_TXPD_V | uPD98401_TXPD_DP | + skb_queue_head(&zatm_vcc->backlog,skb); + break; + } +- atomic_inc(&vcc->stats->tx); ++ atomic_inc_unchecked(&vcc->stats->tx); + wake_up(&zatm_vcc->tx_wait); + } + +diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c +index 8493536..31adee0 100644 +--- a/drivers/base/devtmpfs.c ++++ b/drivers/base/devtmpfs.c +@@ -368,7 +368,7 @@ int devtmpfs_mount(const char *mntdir) + if (!thread) + return 0; + +- err = sys_mount("devtmpfs", (char *)mntdir, "devtmpfs", MS_SILENT, NULL); ++ err = sys_mount((char __force_user *)"devtmpfs", (char __force_user *)mntdir, (char __force_user *)"devtmpfs", MS_SILENT, NULL); + if (err) + printk(KERN_INFO "devtmpfs: error mounting %i\n", err); + else +diff --git a/drivers/base/node.c b/drivers/base/node.c +index 90aa2a1..af1a177 100644 +--- a/drivers/base/node.c ++++ b/drivers/base/node.c +@@ -592,11 +592,9 @@ static ssize_t print_nodes_state(enum node_states state, char *buf) + { + int n; + +- n = nodelist_scnprintf(buf, PAGE_SIZE, node_states[state]); +- if (n > 0 && PAGE_SIZE > n + 1) { +- *(buf + n++) = '\n'; +- *(buf + n++) = '\0'; +- } ++ n = nodelist_scnprintf(buf, PAGE_SIZE-2, node_states[state]); ++ buf[n++] = '\n'; ++ buf[n] = '\0'; + return n; + } + +diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c +index 2a3e581..3d6a73f 100644 +--- a/drivers/base/power/wakeup.c ++++ b/drivers/base/power/wakeup.c +@@ -30,14 +30,14 @@ bool events_check_enabled; + * They need to be modified together atomically, so it's better to use one + * atomic variable to hold them both. + */ +-static atomic_t combined_event_count = ATOMIC_INIT(0); ++static atomic_unchecked_t combined_event_count = ATOMIC_INIT(0); + + #define IN_PROGRESS_BITS (sizeof(int) * 4) + #define MAX_IN_PROGRESS ((1 << IN_PROGRESS_BITS) - 1) + + static void split_counters(unsigned int *cnt, unsigned int *inpr) + { +- unsigned int comb = atomic_read(&combined_event_count); ++ unsigned int comb = atomic_read_unchecked(&combined_event_count); + + *cnt = (comb >> IN_PROGRESS_BITS); + *inpr = comb & MAX_IN_PROGRESS; +@@ -379,7 +379,7 @@ static void wakeup_source_activate(struct wakeup_source *ws) + ws->last_time = ktime_get(); + + /* Increment the counter of events in progress. */ +- atomic_inc(&combined_event_count); ++ atomic_inc_unchecked(&combined_event_count); + } + + /** +@@ -475,7 +475,7 @@ static void wakeup_source_deactivate(struct wakeup_source *ws) + * Increment the counter of registered wakeup events and decrement the + * couter of wakeup events in progress simultaneously. + */ +- atomic_add(MAX_IN_PROGRESS, &combined_event_count); ++ atomic_add_unchecked(MAX_IN_PROGRESS, &combined_event_count); + } + + /** +diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c +index b0f553b..77b928b 100644 +--- a/drivers/block/cciss.c ++++ b/drivers/block/cciss.c +@@ -1198,6 +1198,8 @@ static int cciss_ioctl32_passthru(struct block_device *bdev, fmode_t mode, + int err; + u32 cp; + ++ memset(&arg64, 0, sizeof(arg64)); ++ + err = 0; + err |= + copy_from_user(&arg64.LUN_info, &arg32->LUN_info, +@@ -3007,7 +3009,7 @@ static void start_io(ctlr_info_t *h) + while (!list_empty(&h->reqQ)) { + c = list_entry(h->reqQ.next, CommandList_struct, list); + /* can't do anything if fifo is full */ +- if ((h->access.fifo_full(h))) { ++ if ((h->access->fifo_full(h))) { + dev_warn(&h->pdev->dev, "fifo full\n"); + break; + } +@@ -3017,7 +3019,7 @@ static void start_io(ctlr_info_t *h) + h->Qdepth--; + + /* Tell the controller execute command */ +- h->access.submit_command(h, c); ++ h->access->submit_command(h, c); + + /* Put job onto the completed Q */ + addQ(&h->cmpQ, c); +@@ -3443,17 +3445,17 @@ startio: + + static inline unsigned long get_next_completion(ctlr_info_t *h) + { +- return h->access.command_completed(h); ++ return h->access->command_completed(h); + } + + static inline int interrupt_pending(ctlr_info_t *h) + { +- return h->access.intr_pending(h); ++ return h->access->intr_pending(h); + } + + static inline long interrupt_not_for_us(ctlr_info_t *h) + { +- return ((h->access.intr_pending(h) == 0) || ++ return ((h->access->intr_pending(h) == 0) || + (h->interrupts_enabled == 0)); + } + +@@ -3486,7 +3488,7 @@ static inline u32 next_command(ctlr_info_t *h) + u32 a; + + if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant))) +- return h->access.command_completed(h); ++ return h->access->command_completed(h); + + if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) { + a = *(h->reply_pool_head); /* Next cmd in ring buffer */ +@@ -4044,7 +4046,7 @@ static void __devinit cciss_put_controller_into_performant_mode(ctlr_info_t *h) + trans_support & CFGTBL_Trans_use_short_tags); + + /* Change the access methods to the performant access methods */ +- h->access = SA5_performant_access; ++ h->access = &SA5_performant_access; + h->transMethod = CFGTBL_Trans_Performant; + + return; +@@ -4316,7 +4318,7 @@ static int __devinit cciss_pci_init(ctlr_info_t *h) + if (prod_index < 0) + return -ENODEV; + h->product_name = products[prod_index].product_name; +- h->access = *(products[prod_index].access); ++ h->access = products[prod_index].access; + + if (cciss_board_disabled(h)) { + dev_warn(&h->pdev->dev, "controller appears to be disabled\n"); +@@ -5041,7 +5043,7 @@ reinit_after_soft_reset: + } + + /* make sure the board interrupts are off */ +- h->access.set_intr_mask(h, CCISS_INTR_OFF); ++ h->access->set_intr_mask(h, CCISS_INTR_OFF); + rc = cciss_request_irq(h, do_cciss_msix_intr, do_cciss_intx); + if (rc) + goto clean2; +@@ -5093,7 +5095,7 @@ reinit_after_soft_reset: + * fake ones to scoop up any residual completions. + */ + spin_lock_irqsave(&h->lock, flags); +- h->access.set_intr_mask(h, CCISS_INTR_OFF); ++ h->access->set_intr_mask(h, CCISS_INTR_OFF); + spin_unlock_irqrestore(&h->lock, flags); + free_irq(h->intr[h->intr_mode], h); + rc = cciss_request_irq(h, cciss_msix_discard_completions, +@@ -5113,9 +5115,9 @@ reinit_after_soft_reset: + dev_info(&h->pdev->dev, "Board READY.\n"); + dev_info(&h->pdev->dev, + "Waiting for stale completions to drain.\n"); +- h->access.set_intr_mask(h, CCISS_INTR_ON); ++ h->access->set_intr_mask(h, CCISS_INTR_ON); + msleep(10000); +- h->access.set_intr_mask(h, CCISS_INTR_OFF); ++ h->access->set_intr_mask(h, CCISS_INTR_OFF); + + rc = controller_reset_failed(h->cfgtable); + if (rc) +@@ -5138,7 +5140,7 @@ reinit_after_soft_reset: + cciss_scsi_setup(h); + + /* Turn the interrupts on so we can service requests */ +- h->access.set_intr_mask(h, CCISS_INTR_ON); ++ h->access->set_intr_mask(h, CCISS_INTR_ON); + + /* Get the firmware version */ + inq_buff = kzalloc(sizeof(InquiryData_struct), GFP_KERNEL); +@@ -5211,7 +5213,7 @@ static void cciss_shutdown(struct pci_dev *pdev) + kfree(flush_buf); + if (return_code != IO_OK) + dev_warn(&h->pdev->dev, "Error flushing cache\n"); +- h->access.set_intr_mask(h, CCISS_INTR_OFF); ++ h->access->set_intr_mask(h, CCISS_INTR_OFF); + free_irq(h->intr[h->intr_mode], h); + } + +diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h +index 7fda30e..eb5dfe0 100644 +--- a/drivers/block/cciss.h ++++ b/drivers/block/cciss.h +@@ -101,7 +101,7 @@ struct ctlr_info + /* information about each logical volume */ + drive_info_struct *drv[CISS_MAX_LUN]; + +- struct access_method access; ++ struct access_method *access; + + /* queue and queue Info */ + struct list_head reqQ; +diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c +index 9125bbe..eede5c8 100644 +--- a/drivers/block/cpqarray.c ++++ b/drivers/block/cpqarray.c +@@ -404,7 +404,7 @@ static int __devinit cpqarray_register_ctlr( int i, struct pci_dev *pdev) + if (register_blkdev(COMPAQ_SMART2_MAJOR+i, hba[i]->devname)) { + goto Enomem4; + } +- hba[i]->access.set_intr_mask(hba[i], 0); ++ hba[i]->access->set_intr_mask(hba[i], 0); + if (request_irq(hba[i]->intr, do_ida_intr, + IRQF_DISABLED|IRQF_SHARED, hba[i]->devname, hba[i])) + { +@@ -459,7 +459,7 @@ static int __devinit cpqarray_register_ctlr( int i, struct pci_dev *pdev) + add_timer(&hba[i]->timer); + + /* Enable IRQ now that spinlock and rate limit timer are set up */ +- hba[i]->access.set_intr_mask(hba[i], FIFO_NOT_EMPTY); ++ hba[i]->access->set_intr_mask(hba[i], FIFO_NOT_EMPTY); + + for(j=0; j<NWD; j++) { + struct gendisk *disk = ida_gendisk[i][j]; +@@ -694,7 +694,7 @@ DBGINFO( + for(i=0; i<NR_PRODUCTS; i++) { + if (board_id == products[i].board_id) { + c->product_name = products[i].product_name; +- c->access = *(products[i].access); ++ c->access = products[i].access; + break; + } + } +@@ -792,7 +792,7 @@ static int __devinit cpqarray_eisa_detect(void) + hba[ctlr]->intr = intr; + sprintf(hba[ctlr]->devname, "ida%d", nr_ctlr); + hba[ctlr]->product_name = products[j].product_name; +- hba[ctlr]->access = *(products[j].access); ++ hba[ctlr]->access = products[j].access; + hba[ctlr]->ctlr = ctlr; + hba[ctlr]->board_id = board_id; + hba[ctlr]->pci_dev = NULL; /* not PCI */ +@@ -980,7 +980,7 @@ static void start_io(ctlr_info_t *h) + + while((c = h->reqQ) != NULL) { + /* Can't do anything if we're busy */ +- if (h->access.fifo_full(h) == 0) ++ if (h->access->fifo_full(h) == 0) + return; + + /* Get the first entry from the request Q */ +@@ -988,7 +988,7 @@ static void start_io(ctlr_info_t *h) + h->Qdepth--; + + /* Tell the controller to do our bidding */ +- h->access.submit_command(h, c); ++ h->access->submit_command(h, c); + + /* Get onto the completion Q */ + addQ(&h->cmpQ, c); +@@ -1050,7 +1050,7 @@ static irqreturn_t do_ida_intr(int irq, void *dev_id) + unsigned long flags; + __u32 a,a1; + +- istat = h->access.intr_pending(h); ++ istat = h->access->intr_pending(h); + /* Is this interrupt for us? */ + if (istat == 0) + return IRQ_NONE; +@@ -1061,7 +1061,7 @@ static irqreturn_t do_ida_intr(int irq, void *dev_id) + */ + spin_lock_irqsave(IDA_LOCK(h->ctlr), flags); + if (istat & FIFO_NOT_EMPTY) { +- while((a = h->access.command_completed(h))) { ++ while((a = h->access->command_completed(h))) { + a1 = a; a &= ~3; + if ((c = h->cmpQ) == NULL) + { +@@ -1449,11 +1449,11 @@ static int sendcmd( + /* + * Disable interrupt + */ +- info_p->access.set_intr_mask(info_p, 0); ++ info_p->access->set_intr_mask(info_p, 0); + /* Make sure there is room in the command FIFO */ + /* Actually it should be completely empty at this time. */ + for (i = 200000; i > 0; i--) { +- temp = info_p->access.fifo_full(info_p); ++ temp = info_p->access->fifo_full(info_p); + if (temp != 0) { + break; + } +@@ -1466,7 +1466,7 @@ DBG( + /* + * Send the cmd + */ +- info_p->access.submit_command(info_p, c); ++ info_p->access->submit_command(info_p, c); + complete = pollcomplete(ctlr); + + pci_unmap_single(info_p->pci_dev, (dma_addr_t) c->req.sg[0].addr, +@@ -1549,9 +1549,9 @@ static int revalidate_allvol(ctlr_info_t *host) + * we check the new geometry. Then turn interrupts back on when + * we're done. + */ +- host->access.set_intr_mask(host, 0); ++ host->access->set_intr_mask(host, 0); + getgeometry(ctlr); +- host->access.set_intr_mask(host, FIFO_NOT_EMPTY); ++ host->access->set_intr_mask(host, FIFO_NOT_EMPTY); + + for(i=0; i<NWD; i++) { + struct gendisk *disk = ida_gendisk[ctlr][i]; +@@ -1591,7 +1591,7 @@ static int pollcomplete(int ctlr) + /* Wait (up to 2 seconds) for a command to complete */ + + for (i = 200000; i > 0; i--) { +- done = hba[ctlr]->access.command_completed(hba[ctlr]); ++ done = hba[ctlr]->access->command_completed(hba[ctlr]); + if (done == 0) { + udelay(10); /* a short fixed delay */ + } else +diff --git a/drivers/block/cpqarray.h b/drivers/block/cpqarray.h +index be73e9d..7fbf140 100644 +--- a/drivers/block/cpqarray.h ++++ b/drivers/block/cpqarray.h +@@ -99,7 +99,7 @@ struct ctlr_info { + drv_info_t drv[NWD]; + struct proc_dir_entry *proc; + +- struct access_method access; ++ struct access_method *access; + + cmdlist_t *reqQ; + cmdlist_t *cmpQ; +diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h +index 8d68056..e67050f 100644 +--- a/drivers/block/drbd/drbd_int.h ++++ b/drivers/block/drbd/drbd_int.h +@@ -736,7 +736,7 @@ struct drbd_request; + struct drbd_epoch { + struct list_head list; + unsigned int barrier_nr; +- atomic_t epoch_size; /* increased on every request added. */ ++ atomic_unchecked_t epoch_size; /* increased on every request added. */ + atomic_t active; /* increased on every req. added, and dec on every finished. */ + unsigned long flags; + }; +@@ -1108,7 +1108,7 @@ struct drbd_conf { + void *int_dig_in; + void *int_dig_vv; + wait_queue_head_t seq_wait; +- atomic_t packet_seq; ++ atomic_unchecked_t packet_seq; + unsigned int peer_seq; + spinlock_t peer_seq_lock; + unsigned int minor; +@@ -1617,30 +1617,30 @@ static inline int drbd_setsockopt(struct socket *sock, int level, int optname, + + static inline void drbd_tcp_cork(struct socket *sock) + { +- int __user val = 1; ++ int val = 1; + (void) drbd_setsockopt(sock, SOL_TCP, TCP_CORK, +- (char __user *)&val, sizeof(val)); ++ (char __force_user *)&val, sizeof(val)); + } + + static inline void drbd_tcp_uncork(struct socket *sock) + { +- int __user val = 0; ++ int val = 0; + (void) drbd_setsockopt(sock, SOL_TCP, TCP_CORK, +- (char __user *)&val, sizeof(val)); ++ (char __force_user *)&val, sizeof(val)); + } + + static inline void drbd_tcp_nodelay(struct socket *sock) + { +- int __user val = 1; ++ int val = 1; + (void) drbd_setsockopt(sock, SOL_TCP, TCP_NODELAY, +- (char __user *)&val, sizeof(val)); ++ (char __force_user *)&val, sizeof(val)); + } + + static inline void drbd_tcp_quickack(struct socket *sock) + { +- int __user val = 2; ++ int val = 2; + (void) drbd_setsockopt(sock, SOL_TCP, TCP_QUICKACK, +- (char __user *)&val, sizeof(val)); ++ (char __force_user *)&val, sizeof(val)); + } + + void drbd_bump_write_ordering(struct drbd_conf *mdev, enum write_ordering_e wo); +diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c +index 211fc44..c5116f1 100644 +--- a/drivers/block/drbd/drbd_main.c ++++ b/drivers/block/drbd/drbd_main.c +@@ -2397,7 +2397,7 @@ static int _drbd_send_ack(struct drbd_conf *mdev, enum drbd_packets cmd, + p.sector = sector; + p.block_id = block_id; + p.blksize = blksize; +- p.seq_num = cpu_to_be32(atomic_add_return(1, &mdev->packet_seq)); ++ p.seq_num = cpu_to_be32(atomic_add_return_unchecked(1, &mdev->packet_seq)); + + if (!mdev->meta.socket || mdev->state.conn < C_CONNECTED) + return false; +@@ -2696,7 +2696,7 @@ int drbd_send_dblock(struct drbd_conf *mdev, struct drbd_request *req) + p.sector = cpu_to_be64(req->sector); + p.block_id = (unsigned long)req; + p.seq_num = cpu_to_be32(req->seq_num = +- atomic_add_return(1, &mdev->packet_seq)); ++ atomic_add_return_unchecked(1, &mdev->packet_seq)); + + dp_flags = bio_flags_to_wire(mdev, req->master_bio->bi_rw); + +@@ -2981,7 +2981,7 @@ void drbd_init_set_defaults(struct drbd_conf *mdev) + atomic_set(&mdev->unacked_cnt, 0); + atomic_set(&mdev->local_cnt, 0); + atomic_set(&mdev->net_cnt, 0); +- atomic_set(&mdev->packet_seq, 0); ++ atomic_set_unchecked(&mdev->packet_seq, 0); + atomic_set(&mdev->pp_in_use, 0); + atomic_set(&mdev->pp_in_use_by_net, 0); + atomic_set(&mdev->rs_sect_in, 0); +@@ -3063,8 +3063,8 @@ void drbd_mdev_cleanup(struct drbd_conf *mdev) + mdev->receiver.t_state); + + /* no need to lock it, I'm the only thread alive */ +- if (atomic_read(&mdev->current_epoch->epoch_size) != 0) +- dev_err(DEV, "epoch_size:%d\n", atomic_read(&mdev->current_epoch->epoch_size)); ++ if (atomic_read_unchecked(&mdev->current_epoch->epoch_size) != 0) ++ dev_err(DEV, "epoch_size:%d\n", atomic_read_unchecked(&mdev->current_epoch->epoch_size)); + mdev->al_writ_cnt = + mdev->bm_writ_cnt = + mdev->read_cnt = +diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c +index 946166e..356b39a 100644 +--- a/drivers/block/drbd/drbd_nl.c ++++ b/drivers/block/drbd/drbd_nl.c +@@ -2359,7 +2359,7 @@ static void drbd_connector_callback(struct cn_msg *req, struct netlink_skb_parms + module_put(THIS_MODULE); + } + +-static atomic_t drbd_nl_seq = ATOMIC_INIT(2); /* two. */ ++static atomic_unchecked_t drbd_nl_seq = ATOMIC_INIT(2); /* two. */ + + static unsigned short * + __tl_add_blob(unsigned short *tl, enum drbd_tags tag, const void *data, +@@ -2430,7 +2430,7 @@ void drbd_bcast_state(struct drbd_conf *mdev, union drbd_state state) + cn_reply->id.idx = CN_IDX_DRBD; + cn_reply->id.val = CN_VAL_DRBD; + +- cn_reply->seq = atomic_add_return(1, &drbd_nl_seq); ++ cn_reply->seq = atomic_add_return_unchecked(1, &drbd_nl_seq); + cn_reply->ack = 0; /* not used here. */ + cn_reply->len = sizeof(struct drbd_nl_cfg_reply) + + (int)((char *)tl - (char *)reply->tag_list); +@@ -2462,7 +2462,7 @@ void drbd_bcast_ev_helper(struct drbd_conf *mdev, char *helper_name) + cn_reply->id.idx = CN_IDX_DRBD; + cn_reply->id.val = CN_VAL_DRBD; + +- cn_reply->seq = atomic_add_return(1, &drbd_nl_seq); ++ cn_reply->seq = atomic_add_return_unchecked(1, &drbd_nl_seq); + cn_reply->ack = 0; /* not used here. */ + cn_reply->len = sizeof(struct drbd_nl_cfg_reply) + + (int)((char *)tl - (char *)reply->tag_list); +@@ -2540,7 +2540,7 @@ void drbd_bcast_ee(struct drbd_conf *mdev, + cn_reply->id.idx = CN_IDX_DRBD; + cn_reply->id.val = CN_VAL_DRBD; + +- cn_reply->seq = atomic_add_return(1,&drbd_nl_seq); ++ cn_reply->seq = atomic_add_return_unchecked(1,&drbd_nl_seq); + cn_reply->ack = 0; // not used here. + cn_reply->len = sizeof(struct drbd_nl_cfg_reply) + + (int)((char*)tl - (char*)reply->tag_list); +@@ -2579,7 +2579,7 @@ void drbd_bcast_sync_progress(struct drbd_conf *mdev) + cn_reply->id.idx = CN_IDX_DRBD; + cn_reply->id.val = CN_VAL_DRBD; + +- cn_reply->seq = atomic_add_return(1, &drbd_nl_seq); ++ cn_reply->seq = atomic_add_return_unchecked(1, &drbd_nl_seq); + cn_reply->ack = 0; /* not used here. */ + cn_reply->len = sizeof(struct drbd_nl_cfg_reply) + + (int)((char *)tl - (char *)reply->tag_list); +diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c +index 43beaca..4a5b1dd 100644 +--- a/drivers/block/drbd/drbd_receiver.c ++++ b/drivers/block/drbd/drbd_receiver.c +@@ -894,7 +894,7 @@ retry: + sock->sk->sk_sndtimeo = mdev->net_conf->timeout*HZ/10; + sock->sk->sk_rcvtimeo = MAX_SCHEDULE_TIMEOUT; + +- atomic_set(&mdev->packet_seq, 0); ++ atomic_set_unchecked(&mdev->packet_seq, 0); + mdev->peer_seq = 0; + + drbd_thread_start(&mdev->asender); +@@ -985,7 +985,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_conf *mdev, + do { + next_epoch = NULL; + +- epoch_size = atomic_read(&epoch->epoch_size); ++ epoch_size = atomic_read_unchecked(&epoch->epoch_size); + + switch (ev & ~EV_CLEANUP) { + case EV_PUT: +@@ -1020,7 +1020,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_conf *mdev, + rv = FE_DESTROYED; + } else { + epoch->flags = 0; +- atomic_set(&epoch->epoch_size, 0); ++ atomic_set_unchecked(&epoch->epoch_size, 0); + /* atomic_set(&epoch->active, 0); is already zero */ + if (rv == FE_STILL_LIVE) + rv = FE_RECYCLED; +@@ -1191,14 +1191,14 @@ static int receive_Barrier(struct drbd_conf *mdev, enum drbd_packets cmd, unsign + drbd_wait_ee_list_empty(mdev, &mdev->active_ee); + drbd_flush(mdev); + +- if (atomic_read(&mdev->current_epoch->epoch_size)) { ++ if (atomic_read_unchecked(&mdev->current_epoch->epoch_size)) { + epoch = kmalloc(sizeof(struct drbd_epoch), GFP_NOIO); + if (epoch) + break; + } + + epoch = mdev->current_epoch; +- wait_event(mdev->ee_wait, atomic_read(&epoch->epoch_size) == 0); ++ wait_event(mdev->ee_wait, atomic_read_unchecked(&epoch->epoch_size) == 0); + + D_ASSERT(atomic_read(&epoch->active) == 0); + D_ASSERT(epoch->flags == 0); +@@ -1210,11 +1210,11 @@ static int receive_Barrier(struct drbd_conf *mdev, enum drbd_packets cmd, unsign + } + + epoch->flags = 0; +- atomic_set(&epoch->epoch_size, 0); ++ atomic_set_unchecked(&epoch->epoch_size, 0); + atomic_set(&epoch->active, 0); + + spin_lock(&mdev->epoch_lock); +- if (atomic_read(&mdev->current_epoch->epoch_size)) { ++ if (atomic_read_unchecked(&mdev->current_epoch->epoch_size)) { + list_add(&epoch->list, &mdev->current_epoch->list); + mdev->current_epoch = epoch; + mdev->epochs++; +@@ -1663,7 +1663,7 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned + spin_unlock(&mdev->peer_seq_lock); + + drbd_send_ack_dp(mdev, P_NEG_ACK, p, data_size); +- atomic_inc(&mdev->current_epoch->epoch_size); ++ atomic_inc_unchecked(&mdev->current_epoch->epoch_size); + return drbd_drain_block(mdev, data_size); + } + +@@ -1689,7 +1689,7 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned + + spin_lock(&mdev->epoch_lock); + e->epoch = mdev->current_epoch; +- atomic_inc(&e->epoch->epoch_size); ++ atomic_inc_unchecked(&e->epoch->epoch_size); + atomic_inc(&e->epoch->active); + spin_unlock(&mdev->epoch_lock); + +@@ -3885,7 +3885,7 @@ static void drbd_disconnect(struct drbd_conf *mdev) + D_ASSERT(list_empty(&mdev->done_ee)); + + /* ok, no more ee's on the fly, it is safe to reset the epoch_size */ +- atomic_set(&mdev->current_epoch->epoch_size, 0); ++ atomic_set_unchecked(&mdev->current_epoch->epoch_size, 0); + D_ASSERT(list_empty(&mdev->current_epoch->list)); + } + +diff --git a/drivers/block/loop.c b/drivers/block/loop.c +index bbca966..65e37dd 100644 +--- a/drivers/block/loop.c ++++ b/drivers/block/loop.c +@@ -226,7 +226,7 @@ static int __do_lo_send_write(struct file *file, + mm_segment_t old_fs = get_fs(); + + set_fs(get_ds()); +- bw = file->f_op->write(file, buf, len, &pos); ++ bw = file->f_op->write(file, (const char __force_user *)buf, len, &pos); + set_fs(old_fs); + if (likely(bw == len)) + return 0; +diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig +index ee94686..3e09ad3 100644 +--- a/drivers/char/Kconfig ++++ b/drivers/char/Kconfig +@@ -8,7 +8,8 @@ source "drivers/tty/Kconfig" + + config DEVKMEM + bool "/dev/kmem virtual device support" +- default y ++ default n ++ depends on !GRKERNSEC_KMEM + help + Say Y here if you want to support the /dev/kmem device. The + /dev/kmem device is rarely used, but can be used for certain +@@ -581,6 +582,7 @@ config DEVPORT + bool + depends on !M68K + depends on ISA || PCI ++ depends on !GRKERNSEC_KMEM + default y + + source "drivers/s390/char/Kconfig" +diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c +index 2e04433..22afc64 100644 +--- a/drivers/char/agp/frontend.c ++++ b/drivers/char/agp/frontend.c +@@ -817,7 +817,7 @@ static int agpioc_reserve_wrap(struct agp_file_private *priv, void __user *arg) + if (copy_from_user(&reserve, arg, sizeof(struct agp_region))) + return -EFAULT; + +- if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment)) ++ if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment_priv)) + return -EFAULT; + + client = agp_find_client_by_pid(reserve.pid); +diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c +index 21cb980..f15107c 100644 +--- a/drivers/char/genrtc.c ++++ b/drivers/char/genrtc.c +@@ -272,6 +272,7 @@ static int gen_rtc_ioctl(struct file *file, + switch (cmd) { + + case RTC_PLL_GET: ++ memset(&pll, 0, sizeof(pll)); + if (get_rtc_pll(&pll)) + return -EINVAL; + else +diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c +index dfd7876..c0b0885 100644 +--- a/drivers/char/hpet.c ++++ b/drivers/char/hpet.c +@@ -571,7 +571,7 @@ static inline unsigned long hpet_time_div(struct hpets *hpets, + } + + static int +-hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg, ++hpet_ioctl_common(struct hpet_dev *devp, unsigned int cmd, unsigned long arg, + struct hpet_info *info) + { + struct hpet_timer __iomem *timer; +diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c +index 2c29942..604c5ba 100644 +--- a/drivers/char/ipmi/ipmi_msghandler.c ++++ b/drivers/char/ipmi/ipmi_msghandler.c +@@ -420,7 +420,7 @@ struct ipmi_smi { + struct proc_dir_entry *proc_dir; + char proc_dir_name[10]; + +- atomic_t stats[IPMI_NUM_STATS]; ++ atomic_unchecked_t stats[IPMI_NUM_STATS]; + + /* + * run_to_completion duplicate of smb_info, smi_info +@@ -453,9 +453,9 @@ static DEFINE_MUTEX(smi_watchers_mutex); + + + #define ipmi_inc_stat(intf, stat) \ +- atomic_inc(&(intf)->stats[IPMI_STAT_ ## stat]) ++ atomic_inc_unchecked(&(intf)->stats[IPMI_STAT_ ## stat]) + #define ipmi_get_stat(intf, stat) \ +- ((unsigned int) atomic_read(&(intf)->stats[IPMI_STAT_ ## stat])) ++ ((unsigned int) atomic_read_unchecked(&(intf)->stats[IPMI_STAT_ ## stat])) + + static int is_lan_addr(struct ipmi_addr *addr) + { +@@ -2884,7 +2884,7 @@ int ipmi_register_smi(struct ipmi_smi_handlers *handlers, + INIT_LIST_HEAD(&intf->cmd_rcvrs); + init_waitqueue_head(&intf->waitq); + for (i = 0; i < IPMI_NUM_STATS; i++) +- atomic_set(&intf->stats[i], 0); ++ atomic_set_unchecked(&intf->stats[i], 0); + + intf->proc_dir = NULL; + +diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c +index 1e638ff..a869ef5 100644 +--- a/drivers/char/ipmi/ipmi_si_intf.c ++++ b/drivers/char/ipmi/ipmi_si_intf.c +@@ -275,7 +275,7 @@ struct smi_info { + unsigned char slave_addr; + + /* Counters and things for the proc filesystem. */ +- atomic_t stats[SI_NUM_STATS]; ++ atomic_unchecked_t stats[SI_NUM_STATS]; + + struct task_struct *thread; + +@@ -284,9 +284,9 @@ struct smi_info { + }; + + #define smi_inc_stat(smi, stat) \ +- atomic_inc(&(smi)->stats[SI_STAT_ ## stat]) ++ atomic_inc_unchecked(&(smi)->stats[SI_STAT_ ## stat]) + #define smi_get_stat(smi, stat) \ +- ((unsigned int) atomic_read(&(smi)->stats[SI_STAT_ ## stat])) ++ ((unsigned int) atomic_read_unchecked(&(smi)->stats[SI_STAT_ ## stat])) + + #define SI_MAX_PARMS 4 + +@@ -3209,7 +3209,7 @@ static int try_smi_init(struct smi_info *new_smi) + atomic_set(&new_smi->req_events, 0); + new_smi->run_to_completion = 0; + for (i = 0; i < SI_NUM_STATS; i++) +- atomic_set(&new_smi->stats[i], 0); ++ atomic_set_unchecked(&new_smi->stats[i], 0); + + new_smi->interrupt_disabled = 1; + atomic_set(&new_smi->stop_operation, 0); +diff --git a/drivers/char/mbcs.c b/drivers/char/mbcs.c +index 47ff7e4..0c7d340 100644 +--- a/drivers/char/mbcs.c ++++ b/drivers/char/mbcs.c +@@ -799,7 +799,7 @@ static int mbcs_remove(struct cx_dev *dev) + return 0; + } + +-static const struct cx_device_id __devinitdata mbcs_id_table[] = { ++static const struct cx_device_id __devinitconst mbcs_id_table[] = { + { + .part_num = MBCS_PART_NUM, + .mfg_num = MBCS_MFG_NUM, +diff --git a/drivers/char/mem.c b/drivers/char/mem.c +index d6e9d08..0c314bf 100644 +--- a/drivers/char/mem.c ++++ b/drivers/char/mem.c +@@ -18,6 +18,7 @@ + #include <linux/raw.h> + #include <linux/tty.h> + #include <linux/capability.h> ++#include <linux/security.h> + #include <linux/ptrace.h> + #include <linux/device.h> + #include <linux/highmem.h> +@@ -35,6 +36,10 @@ + # include <linux/efi.h> + #endif + ++#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC) ++extern const struct file_operations grsec_fops; ++#endif ++ + static inline unsigned long size_inside_page(unsigned long start, + unsigned long size) + { +@@ -66,9 +71,13 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size) + + while (cursor < to) { + if (!devmem_is_allowed(pfn)) { ++#ifdef CONFIG_GRKERNSEC_KMEM ++ gr_handle_mem_readwrite(from, to); ++#else + printk(KERN_INFO + "Program %s tried to access /dev/mem between %Lx->%Lx.\n", + current->comm, from, to); ++#endif + return 0; + } + cursor += PAGE_SIZE; +@@ -76,6 +85,11 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size) + } + return 1; + } ++#elif defined(CONFIG_GRKERNSEC_KMEM) ++static inline int range_is_allowed(unsigned long pfn, unsigned long size) ++{ ++ return 0; ++} + #else + static inline int range_is_allowed(unsigned long pfn, unsigned long size) + { +@@ -118,6 +132,7 @@ static ssize_t read_mem(struct file *file, char __user *buf, + + while (count > 0) { + unsigned long remaining; ++ char *temp; + + sz = size_inside_page(p, count); + +@@ -133,7 +148,23 @@ static ssize_t read_mem(struct file *file, char __user *buf, + if (!ptr) + return -EFAULT; + +- remaining = copy_to_user(buf, ptr, sz); ++#ifdef CONFIG_PAX_USERCOPY ++ temp = kmalloc(sz, GFP_KERNEL|GFP_USERCOPY); ++ if (!temp) { ++ unxlate_dev_mem_ptr(p, ptr); ++ return -ENOMEM; ++ } ++ memcpy(temp, ptr, sz); ++#else ++ temp = ptr; ++#endif ++ ++ remaining = copy_to_user(buf, temp, sz); ++ ++#ifdef CONFIG_PAX_USERCOPY ++ kfree(temp); ++#endif ++ + unxlate_dev_mem_ptr(p, ptr); + if (remaining) + return -EFAULT; +@@ -396,9 +427,8 @@ static ssize_t read_kmem(struct file *file, char __user *buf, + size_t count, loff_t *ppos) + { + unsigned long p = *ppos; +- ssize_t low_count, read, sz; ++ ssize_t low_count, read, sz, err = 0; + char * kbuf; /* k-addr because vread() takes vmlist_lock rwlock */ +- int err = 0; + + read = 0; + if (p < (unsigned long) high_memory) { +@@ -420,6 +450,8 @@ static ssize_t read_kmem(struct file *file, char __user *buf, + } + #endif + while (low_count > 0) { ++ char *temp; ++ + sz = size_inside_page(p, low_count); + + /* +@@ -429,7 +461,22 @@ static ssize_t read_kmem(struct file *file, char __user *buf, + */ + kbuf = xlate_dev_kmem_ptr((char *)p); + +- if (copy_to_user(buf, kbuf, sz)) ++#ifdef CONFIG_PAX_USERCOPY ++ temp = kmalloc(sz, GFP_KERNEL|GFP_USERCOPY); ++ if (!temp) ++ return -ENOMEM; ++ memcpy(temp, kbuf, sz); ++#else ++ temp = kbuf; ++#endif ++ ++ err = copy_to_user(buf, temp, sz); ++ ++#ifdef CONFIG_PAX_USERCOPY ++ kfree(temp); ++#endif ++ ++ if (err) + return -EFAULT; + buf += sz; + p += sz; +@@ -867,6 +914,9 @@ static const struct memdev { + #ifdef CONFIG_CRASH_DUMP + [12] = { "oldmem", 0, &oldmem_fops, NULL }, + #endif ++#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC) ++ [13] = { "grsec",S_IRUSR | S_IWUGO, &grsec_fops, NULL }, ++#endif + }; + + static int memory_open(struct inode *inode, struct file *filp) +diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c +index 9df78e2..01ba9ae 100644 +--- a/drivers/char/nvram.c ++++ b/drivers/char/nvram.c +@@ -247,7 +247,7 @@ static ssize_t nvram_read(struct file *file, char __user *buf, + + spin_unlock_irq(&rtc_lock); + +- if (copy_to_user(buf, contents, tmp - contents)) ++ if (tmp - contents > sizeof(contents) || copy_to_user(buf, contents, tmp - contents)) + return -EFAULT; + + *ppos = i; +diff --git a/drivers/char/random.c b/drivers/char/random.c +index 4ec04a7..9918387 100644 +--- a/drivers/char/random.c ++++ b/drivers/char/random.c +@@ -261,8 +261,13 @@ + /* + * Configuration information + */ ++#ifdef CONFIG_GRKERNSEC_RANDNET ++#define INPUT_POOL_WORDS 512 ++#define OUTPUT_POOL_WORDS 128 ++#else + #define INPUT_POOL_WORDS 128 + #define OUTPUT_POOL_WORDS 32 ++#endif + #define SEC_XFER_SIZE 512 + #define EXTRACT_SIZE 10 + +@@ -300,10 +305,17 @@ static struct poolinfo { + int poolwords; + int tap1, tap2, tap3, tap4, tap5; + } poolinfo_table[] = { ++#ifdef CONFIG_GRKERNSEC_RANDNET ++ /* x^512 + x^411 + x^308 + x^208 +x^104 + x + 1 -- 225 */ ++ { 512, 411, 308, 208, 104, 1 }, ++ /* x^128 + x^103 + x^76 + x^51 + x^25 + x + 1 -- 105 */ ++ { 128, 103, 76, 51, 25, 1 }, ++#else + /* x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 -- 105 */ + { 128, 103, 76, 51, 25, 1 }, + /* x^32 + x^26 + x^20 + x^14 + x^7 + x + 1 -- 15 */ + { 32, 26, 20, 14, 7, 1 }, ++#endif + #if 0 + /* x^2048 + x^1638 + x^1231 + x^819 + x^411 + x + 1 -- 115 */ + { 2048, 1638, 1231, 819, 411, 1 }, +@@ -726,6 +738,17 @@ void add_disk_randomness(struct gendisk *disk) + } + #endif + ++#ifdef CONFIG_PAX_LATENT_ENTROPY ++u64 latent_entropy; ++ ++__init void transfer_latent_entropy(void) ++{ ++ mix_pool_bytes(&input_pool, &latent_entropy, sizeof(latent_entropy)); ++ mix_pool_bytes(&nonblocking_pool, &latent_entropy, sizeof(latent_entropy)); ++// printk(KERN_INFO "PAX: transferring latent entropy: %16llx\n", latent_entropy); ++} ++#endif ++ + /********************************************************************* + * + * Entropy extraction routines +@@ -913,7 +936,7 @@ static ssize_t extract_entropy_user(struct entropy_store *r, void __user *buf, + + extract_buf(r, tmp); + i = min_t(int, nbytes, EXTRACT_SIZE); +- if (copy_to_user(buf, tmp, i)) { ++ if (i > sizeof(tmp) || copy_to_user(buf, tmp, i)) { + ret = -EFAULT; + break; + } +@@ -1238,7 +1261,7 @@ EXPORT_SYMBOL(generate_random_uuid); + #include <linux/sysctl.h> + + static int min_read_thresh = 8, min_write_thresh; +-static int max_read_thresh = INPUT_POOL_WORDS * 32; ++static int max_read_thresh = OUTPUT_POOL_WORDS * 32; + static int max_write_thresh = INPUT_POOL_WORDS * 32; + static char sysctl_bootid[16]; + +diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c +index 45713f0..8286d21 100644 +--- a/drivers/char/sonypi.c ++++ b/drivers/char/sonypi.c +@@ -54,6 +54,7 @@ + + #include <asm/uaccess.h> + #include <asm/io.h> ++#include <asm/local.h> + + #include <linux/sonypi.h> + +@@ -490,7 +491,7 @@ static struct sonypi_device { + spinlock_t fifo_lock; + wait_queue_head_t fifo_proc_list; + struct fasync_struct *fifo_async; +- int open_count; ++ local_t open_count; + int model; + struct input_dev *input_jog_dev; + struct input_dev *input_key_dev; +@@ -897,7 +898,7 @@ static int sonypi_misc_fasync(int fd, struct file *filp, int on) + static int sonypi_misc_release(struct inode *inode, struct file *file) + { + mutex_lock(&sonypi_device.lock); +- sonypi_device.open_count--; ++ local_dec(&sonypi_device.open_count); + mutex_unlock(&sonypi_device.lock); + return 0; + } +@@ -906,9 +907,9 @@ static int sonypi_misc_open(struct inode *inode, struct file *file) + { + mutex_lock(&sonypi_device.lock); + /* Flush input queue on first open */ +- if (!sonypi_device.open_count) ++ if (!local_read(&sonypi_device.open_count)) + kfifo_reset(&sonypi_device.fifo); +- sonypi_device.open_count++; ++ local_inc(&sonypi_device.open_count); + mutex_unlock(&sonypi_device.lock); + + return 0; +diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c +index ad7c732..5aa8054 100644 +--- a/drivers/char/tpm/tpm.c ++++ b/drivers/char/tpm/tpm.c +@@ -415,7 +415,7 @@ static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf, + chip->vendor.req_complete_val) + goto out_recv; + +- if ((status == chip->vendor.req_canceled)) { ++ if (status == chip->vendor.req_canceled) { + dev_err(chip->dev, "Operation Canceled\n"); + rc = -ECANCELED; + goto out; +diff --git a/drivers/char/tpm/tpm_bios.c b/drivers/char/tpm/tpm_bios.c +index 0636520..169c1d0 100644 +--- a/drivers/char/tpm/tpm_bios.c ++++ b/drivers/char/tpm/tpm_bios.c +@@ -173,7 +173,7 @@ static void *tpm_bios_measurements_start(struct seq_file *m, loff_t *pos) + event = addr; + + if ((event->event_type == 0 && event->event_size == 0) || +- ((addr + sizeof(struct tcpa_event) + event->event_size) >= limit)) ++ (event->event_size >= limit - addr - sizeof(struct tcpa_event))) + return NULL; + + return addr; +@@ -198,7 +198,7 @@ static void *tpm_bios_measurements_next(struct seq_file *m, void *v, + return NULL; + + if ((event->event_type == 0 && event->event_size == 0) || +- ((v + sizeof(struct tcpa_event) + event->event_size) >= limit)) ++ (event->event_size >= limit - v - sizeof(struct tcpa_event))) + return NULL; + + (*pos)++; +@@ -291,7 +291,8 @@ static int tpm_binary_bios_measurements_show(struct seq_file *m, void *v) + int i; + + for (i = 0; i < sizeof(struct tcpa_event) + event->event_size; i++) +- seq_putc(m, data[i]); ++ if (!seq_putc(m, data[i])) ++ return -EFAULT; + + return 0; + } +@@ -410,8 +411,13 @@ static int read_log(struct tpm_bios_log *log) + log->bios_event_log_end = log->bios_event_log + len; + + virt = acpi_os_map_memory(start, len); ++ if (!virt) { ++ kfree(log->bios_event_log); ++ log->bios_event_log = NULL; ++ return -EFAULT; ++ } + +- memcpy(log->bios_event_log, virt, len); ++ memcpy(log->bios_event_log, (const char __force_kernel *)virt, len); + + acpi_os_unmap_memory(virt, len); + return 0; +diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c +index cdf2f54..e55c197 100644 +--- a/drivers/char/virtio_console.c ++++ b/drivers/char/virtio_console.c +@@ -563,7 +563,7 @@ static ssize_t fill_readbuf(struct port *port, char *out_buf, size_t out_count, + if (to_user) { + ssize_t ret; + +- ret = copy_to_user(out_buf, buf->buf + buf->offset, out_count); ++ ret = copy_to_user((char __force_user *)out_buf, buf->buf + buf->offset, out_count); + if (ret) + return -EFAULT; + } else { +@@ -662,7 +662,7 @@ static ssize_t port_fops_read(struct file *filp, char __user *ubuf, + if (!port_has_data(port) && !port->host_connected) + return 0; + +- return fill_readbuf(port, ubuf, count, true); ++ return fill_readbuf(port, (char __force_kernel *)ubuf, count, true); + } + + static ssize_t port_fops_write(struct file *filp, const char __user *ubuf, +diff --git a/drivers/edac/edac_pci_sysfs.c b/drivers/edac/edac_pci_sysfs.c +index 97f5064..202b6e6 100644 +--- a/drivers/edac/edac_pci_sysfs.c ++++ b/drivers/edac/edac_pci_sysfs.c +@@ -26,8 +26,8 @@ static int edac_pci_log_pe = 1; /* log PCI parity errors */ + static int edac_pci_log_npe = 1; /* log PCI non-parity error errors */ + static int edac_pci_poll_msec = 1000; /* one second workq period */ + +-static atomic_t pci_parity_count = ATOMIC_INIT(0); +-static atomic_t pci_nonparity_count = ATOMIC_INIT(0); ++static atomic_unchecked_t pci_parity_count = ATOMIC_INIT(0); ++static atomic_unchecked_t pci_nonparity_count = ATOMIC_INIT(0); + + static struct kobject *edac_pci_top_main_kobj; + static atomic_t edac_pci_sysfs_refcount = ATOMIC_INIT(0); +@@ -582,7 +582,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev) + edac_printk(KERN_CRIT, EDAC_PCI, + "Signaled System Error on %s\n", + pci_name(dev)); +- atomic_inc(&pci_nonparity_count); ++ atomic_inc_unchecked(&pci_nonparity_count); + } + + if (status & (PCI_STATUS_PARITY)) { +@@ -590,7 +590,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev) + "Master Data Parity Error on %s\n", + pci_name(dev)); + +- atomic_inc(&pci_parity_count); ++ atomic_inc_unchecked(&pci_parity_count); + } + + if (status & (PCI_STATUS_DETECTED_PARITY)) { +@@ -598,7 +598,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev) + "Detected Parity Error on %s\n", + pci_name(dev)); + +- atomic_inc(&pci_parity_count); ++ atomic_inc_unchecked(&pci_parity_count); + } + } + +@@ -619,7 +619,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev) + edac_printk(KERN_CRIT, EDAC_PCI, "Bridge " + "Signaled System Error on %s\n", + pci_name(dev)); +- atomic_inc(&pci_nonparity_count); ++ atomic_inc_unchecked(&pci_nonparity_count); + } + + if (status & (PCI_STATUS_PARITY)) { +@@ -627,7 +627,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev) + "Master Data Parity Error on " + "%s\n", pci_name(dev)); + +- atomic_inc(&pci_parity_count); ++ atomic_inc_unchecked(&pci_parity_count); + } + + if (status & (PCI_STATUS_DETECTED_PARITY)) { +@@ -635,7 +635,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev) + "Detected Parity Error on %s\n", + pci_name(dev)); + +- atomic_inc(&pci_parity_count); ++ atomic_inc_unchecked(&pci_parity_count); + } + } + } +@@ -677,7 +677,7 @@ void edac_pci_do_parity_check(void) + if (!check_pci_errors) + return; + +- before_count = atomic_read(&pci_parity_count); ++ before_count = atomic_read_unchecked(&pci_parity_count); + + /* scan all PCI devices looking for a Parity Error on devices and + * bridges. +@@ -689,7 +689,7 @@ void edac_pci_do_parity_check(void) + /* Only if operator has selected panic on PCI Error */ + if (edac_pci_get_panic_on_pe()) { + /* If the count is different 'after' from 'before' */ +- if (before_count != atomic_read(&pci_parity_count)) ++ if (before_count != atomic_read_unchecked(&pci_parity_count)) + panic("EDAC: PCI Parity Error"); + } + } +diff --git a/drivers/edac/mce_amd.h b/drivers/edac/mce_amd.h +index c6074c5..88a9e2e 100644 +--- a/drivers/edac/mce_amd.h ++++ b/drivers/edac/mce_amd.h +@@ -82,7 +82,7 @@ extern const char * const ii_msgs[]; + struct amd_decoder_ops { + bool (*dc_mce)(u16, u8); + bool (*ic_mce)(u16, u8); +-}; ++} __no_const; + + void amd_report_gart_errors(bool); + void amd_register_ecc_decoder(void (*f)(int, struct mce *)); +diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c +index cc595eb..4ec702a 100644 +--- a/drivers/firewire/core-card.c ++++ b/drivers/firewire/core-card.c +@@ -679,7 +679,7 @@ void fw_card_release(struct kref *kref) + + void fw_core_remove_card(struct fw_card *card) + { +- struct fw_card_driver dummy_driver = dummy_driver_template; ++ fw_card_driver_no_const dummy_driver = dummy_driver_template; + + card->driver->update_phy_reg(card, 4, + PHY_LINK_ACTIVE | PHY_CONTENDER, 0); +diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c +index 2e6b245..c3857d9 100644 +--- a/drivers/firewire/core-cdev.c ++++ b/drivers/firewire/core-cdev.c +@@ -1341,8 +1341,7 @@ static int init_iso_resource(struct client *client, + int ret; + + if ((request->channels == 0 && request->bandwidth == 0) || +- request->bandwidth > BANDWIDTH_AVAILABLE_INITIAL || +- request->bandwidth < 0) ++ request->bandwidth > BANDWIDTH_AVAILABLE_INITIAL) + return -EINVAL; + + r = kmalloc(sizeof(*r), GFP_KERNEL); +diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c +index dea2dcc..a4fb978 100644 +--- a/drivers/firewire/core-transaction.c ++++ b/drivers/firewire/core-transaction.c +@@ -37,6 +37,7 @@ + #include <linux/timer.h> + #include <linux/types.h> + #include <linux/workqueue.h> ++#include <linux/sched.h> + + #include <asm/byteorder.h> + +diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h +index 9047f55..e47c7ff 100644 +--- a/drivers/firewire/core.h ++++ b/drivers/firewire/core.h +@@ -110,6 +110,7 @@ struct fw_card_driver { + + int (*stop_iso)(struct fw_iso_context *ctx); + }; ++typedef struct fw_card_driver __no_const fw_card_driver_no_const; + + void fw_card_initialize(struct fw_card *card, + const struct fw_card_driver *driver, struct device *device); +diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c +index 153980b..4b4d046 100644 +--- a/drivers/firmware/dmi_scan.c ++++ b/drivers/firmware/dmi_scan.c +@@ -449,11 +449,6 @@ void __init dmi_scan_machine(void) + } + } + else { +- /* +- * no iounmap() for that ioremap(); it would be a no-op, but +- * it's so early in setup that sucker gets confused into doing +- * what it shouldn't if we actually call it. +- */ + p = dmi_ioremap(0xF0000, 0x10000); + if (p == NULL) + goto error; +@@ -723,7 +718,7 @@ int dmi_walk(void (*decode)(const struct dmi_header *, void *), + if (buf == NULL) + return -1; + +- dmi_table(buf, dmi_len, dmi_num, decode, private_data); ++ dmi_table((char __force_kernel *)buf, dmi_len, dmi_num, decode, private_data); + + iounmap(buf); + return 0; +diff --git a/drivers/gpio/gpio-vr41xx.c b/drivers/gpio/gpio-vr41xx.c +index 82d5c20..44a7177 100644 +--- a/drivers/gpio/gpio-vr41xx.c ++++ b/drivers/gpio/gpio-vr41xx.c +@@ -204,7 +204,7 @@ static int giu_get_irq(unsigned int irq) + printk(KERN_ERR "spurious GIU interrupt: %04x(%04x),%04x(%04x)\n", + maskl, pendl, maskh, pendh); + +- atomic_inc(&irq_err_count); ++ atomic_inc_unchecked(&irq_err_count); + + return -EINVAL; + } +diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c +index 8111889..367b253 100644 +--- a/drivers/gpu/drm/drm_crtc_helper.c ++++ b/drivers/gpu/drm/drm_crtc_helper.c +@@ -286,7 +286,7 @@ static bool drm_encoder_crtc_ok(struct drm_encoder *encoder, + struct drm_crtc *tmp; + int crtc_mask = 1; + +- WARN(!crtc, "checking null crtc?\n"); ++ BUG_ON(!crtc); + + dev = crtc->dev; + +diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c +index 6116e3b..c29dd16 100644 +--- a/drivers/gpu/drm/drm_drv.c ++++ b/drivers/gpu/drm/drm_drv.c +@@ -316,7 +316,7 @@ module_exit(drm_core_exit); + /** + * Copy and IOCTL return string to user space + */ +-static int drm_copy_field(char *buf, size_t *buf_len, const char *value) ++static int drm_copy_field(char __user *buf, size_t *buf_len, const char *value) + { + int len; + +@@ -399,7 +399,7 @@ long drm_ioctl(struct file *filp, + return -ENODEV; + + atomic_inc(&dev->ioctl_count); +- atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]); ++ atomic_inc_unchecked(&dev->counts[_DRM_STAT_IOCTLS]); + ++file_priv->ioctl_count; + + DRM_DEBUG("pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%lx, auth=%d\n", +diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c +index 123de28..43a0897 100644 +--- a/drivers/gpu/drm/drm_fops.c ++++ b/drivers/gpu/drm/drm_fops.c +@@ -71,7 +71,7 @@ static int drm_setup(struct drm_device * dev) + } + + for (i = 0; i < ARRAY_SIZE(dev->counts); i++) +- atomic_set(&dev->counts[i], 0); ++ atomic_set_unchecked(&dev->counts[i], 0); + + dev->sigdata.lock = NULL; + +@@ -138,8 +138,8 @@ int drm_open(struct inode *inode, struct file *filp) + + retcode = drm_open_helper(inode, filp, dev); + if (!retcode) { +- atomic_inc(&dev->counts[_DRM_STAT_OPENS]); +- if (!dev->open_count++) ++ atomic_inc_unchecked(&dev->counts[_DRM_STAT_OPENS]); ++ if (local_inc_return(&dev->open_count) == 1) + retcode = drm_setup(dev); + } + if (!retcode) { +@@ -482,7 +482,7 @@ int drm_release(struct inode *inode, struct file *filp) + + mutex_lock(&drm_global_mutex); + +- DRM_DEBUG("open_count = %d\n", dev->open_count); ++ DRM_DEBUG("open_count = %ld\n", local_read(&dev->open_count)); + + if (dev->driver->preclose) + dev->driver->preclose(dev, file_priv); +@@ -491,10 +491,10 @@ int drm_release(struct inode *inode, struct file *filp) + * Begin inline drm_release + */ + +- DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n", ++ DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %ld\n", + task_pid_nr(current), + (long)old_encode_dev(file_priv->minor->device), +- dev->open_count); ++ local_read(&dev->open_count)); + + /* Release any auth tokens that might point to this file_priv, + (do that under the drm_global_mutex) */ +@@ -584,8 +584,8 @@ int drm_release(struct inode *inode, struct file *filp) + * End inline drm_release + */ + +- atomic_inc(&dev->counts[_DRM_STAT_CLOSES]); +- if (!--dev->open_count) { ++ atomic_inc_unchecked(&dev->counts[_DRM_STAT_CLOSES]); ++ if (local_dec_and_test(&dev->open_count)) { + if (atomic_read(&dev->ioctl_count)) { + DRM_ERROR("Device busy: %d\n", + atomic_read(&dev->ioctl_count)); +diff --git a/drivers/gpu/drm/drm_global.c b/drivers/gpu/drm/drm_global.c +index c87dc96..326055d 100644 +--- a/drivers/gpu/drm/drm_global.c ++++ b/drivers/gpu/drm/drm_global.c +@@ -36,7 +36,7 @@ + struct drm_global_item { + struct mutex mutex; + void *object; +- int refcount; ++ atomic_t refcount; + }; + + static struct drm_global_item glob[DRM_GLOBAL_NUM]; +@@ -49,7 +49,7 @@ void drm_global_init(void) + struct drm_global_item *item = &glob[i]; + mutex_init(&item->mutex); + item->object = NULL; +- item->refcount = 0; ++ atomic_set(&item->refcount, 0); + } + } + +@@ -59,7 +59,7 @@ void drm_global_release(void) + for (i = 0; i < DRM_GLOBAL_NUM; ++i) { + struct drm_global_item *item = &glob[i]; + BUG_ON(item->object != NULL); +- BUG_ON(item->refcount != 0); ++ BUG_ON(atomic_read(&item->refcount) != 0); + } + } + +@@ -70,7 +70,7 @@ int drm_global_item_ref(struct drm_global_reference *ref) + void *object; + + mutex_lock(&item->mutex); +- if (item->refcount == 0) { ++ if (atomic_read(&item->refcount) == 0) { + item->object = kzalloc(ref->size, GFP_KERNEL); + if (unlikely(item->object == NULL)) { + ret = -ENOMEM; +@@ -83,7 +83,7 @@ int drm_global_item_ref(struct drm_global_reference *ref) + goto out_err; + + } +- ++item->refcount; ++ atomic_inc(&item->refcount); + ref->object = item->object; + object = item->object; + mutex_unlock(&item->mutex); +@@ -100,9 +100,9 @@ void drm_global_item_unref(struct drm_global_reference *ref) + struct drm_global_item *item = &glob[ref->global_type]; + + mutex_lock(&item->mutex); +- BUG_ON(item->refcount == 0); ++ BUG_ON(atomic_read(&item->refcount) == 0); + BUG_ON(ref->object != item->object); +- if (--item->refcount == 0) { ++ if (atomic_dec_and_test(&item->refcount)) { + ref->release(ref); + item->object = NULL; + } +diff --git a/drivers/gpu/drm/drm_info.c b/drivers/gpu/drm/drm_info.c +index ab1162d..42587b2 100644 +--- a/drivers/gpu/drm/drm_info.c ++++ b/drivers/gpu/drm/drm_info.c +@@ -75,10 +75,14 @@ int drm_vm_info(struct seq_file *m, void *data) + struct drm_local_map *map; + struct drm_map_list *r_list; + +- /* Hardcoded from _DRM_FRAME_BUFFER, +- _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and +- _DRM_SCATTER_GATHER and _DRM_CONSISTENT */ +- const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" }; ++ static const char * const types[] = { ++ [_DRM_FRAME_BUFFER] = "FB", ++ [_DRM_REGISTERS] = "REG", ++ [_DRM_SHM] = "SHM", ++ [_DRM_AGP] = "AGP", ++ [_DRM_SCATTER_GATHER] = "SG", ++ [_DRM_CONSISTENT] = "PCI", ++ [_DRM_GEM] = "GEM" }; + const char *type; + int i; + +@@ -89,7 +93,7 @@ int drm_vm_info(struct seq_file *m, void *data) + map = r_list->map; + if (!map) + continue; +- if (map->type < 0 || map->type > 5) ++ if (map->type >= ARRAY_SIZE(types)) + type = "??"; + else + type = types[map->type]; +@@ -290,7 +294,11 @@ int drm_vma_info(struct seq_file *m, void *data) + vma->vm_flags & VM_MAYSHARE ? 's' : 'p', + vma->vm_flags & VM_LOCKED ? 'l' : '-', + vma->vm_flags & VM_IO ? 'i' : '-', ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ 0); ++#else + vma->vm_pgoff); ++#endif + + #if defined(__i386__) + pgprot = pgprot_val(vma->vm_page_prot); +diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c +index 637fcc3..e890b33 100644 +--- a/drivers/gpu/drm/drm_ioc32.c ++++ b/drivers/gpu/drm/drm_ioc32.c +@@ -457,7 +457,7 @@ static int compat_drm_infobufs(struct file *file, unsigned int cmd, + request = compat_alloc_user_space(nbytes); + if (!access_ok(VERIFY_WRITE, request, nbytes)) + return -EFAULT; +- list = (struct drm_buf_desc *) (request + 1); ++ list = (struct drm_buf_desc __user *) (request + 1); + + if (__put_user(count, &request->count) + || __put_user(list, &request->list)) +@@ -518,7 +518,7 @@ static int compat_drm_mapbufs(struct file *file, unsigned int cmd, + request = compat_alloc_user_space(nbytes); + if (!access_ok(VERIFY_WRITE, request, nbytes)) + return -EFAULT; +- list = (struct drm_buf_pub *) (request + 1); ++ list = (struct drm_buf_pub __user *) (request + 1); + + if (__put_user(count, &request->count) + || __put_user(list, &request->list)) +diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c +index cf85155..f2665cb 100644 +--- a/drivers/gpu/drm/drm_ioctl.c ++++ b/drivers/gpu/drm/drm_ioctl.c +@@ -252,7 +252,7 @@ int drm_getstats(struct drm_device *dev, void *data, + stats->data[i].value = + (file_priv->master->lock.hw_lock ? file_priv->master->lock.hw_lock->lock : 0); + else +- stats->data[i].value = atomic_read(&dev->counts[i]); ++ stats->data[i].value = atomic_read_unchecked(&dev->counts[i]); + stats->data[i].type = dev->types[i]; + } + +diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c +index c79c713..2048588 100644 +--- a/drivers/gpu/drm/drm_lock.c ++++ b/drivers/gpu/drm/drm_lock.c +@@ -90,7 +90,7 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv) + if (drm_lock_take(&master->lock, lock->context)) { + master->lock.file_priv = file_priv; + master->lock.lock_time = jiffies; +- atomic_inc(&dev->counts[_DRM_STAT_LOCKS]); ++ atomic_inc_unchecked(&dev->counts[_DRM_STAT_LOCKS]); + break; /* Got lock */ + } + +@@ -161,7 +161,7 @@ int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv) + return -EINVAL; + } + +- atomic_inc(&dev->counts[_DRM_STAT_UNLOCKS]); ++ atomic_inc_unchecked(&dev->counts[_DRM_STAT_UNLOCKS]); + + if (drm_lock_free(&master->lock, lock->context)) { + /* FIXME: Should really bail out here. */ +diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c +index aa454f8..6d38580 100644 +--- a/drivers/gpu/drm/drm_stub.c ++++ b/drivers/gpu/drm/drm_stub.c +@@ -512,7 +512,7 @@ void drm_unplug_dev(struct drm_device *dev) + + drm_device_set_unplugged(dev); + +- if (dev->open_count == 0) { ++ if (local_read(&dev->open_count) == 0) { + drm_put_dev(dev); + } + mutex_unlock(&drm_global_mutex); +diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c +index f920fb5..001c52d 100644 +--- a/drivers/gpu/drm/i810/i810_dma.c ++++ b/drivers/gpu/drm/i810/i810_dma.c +@@ -945,8 +945,8 @@ static int i810_dma_vertex(struct drm_device *dev, void *data, + dma->buflist[vertex->idx], + vertex->discard, vertex->used); + +- atomic_add(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]); +- atomic_inc(&dev->counts[_DRM_STAT_DMA]); ++ atomic_add_unchecked(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]); ++ atomic_inc_unchecked(&dev->counts[_DRM_STAT_DMA]); + sarea_priv->last_enqueue = dev_priv->counter - 1; + sarea_priv->last_dispatch = (int)hw_status[5]; + +@@ -1106,8 +1106,8 @@ static int i810_dma_mc(struct drm_device *dev, void *data, + i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used, + mc->last_render); + +- atomic_add(mc->used, &dev->counts[_DRM_STAT_SECONDARY]); +- atomic_inc(&dev->counts[_DRM_STAT_DMA]); ++ atomic_add_unchecked(mc->used, &dev->counts[_DRM_STAT_SECONDARY]); ++ atomic_inc_unchecked(&dev->counts[_DRM_STAT_DMA]); + sarea_priv->last_enqueue = dev_priv->counter - 1; + sarea_priv->last_dispatch = (int)hw_status[5]; + +diff --git a/drivers/gpu/drm/i810/i810_drv.h b/drivers/gpu/drm/i810/i810_drv.h +index c9339f4..f5e1b9d 100644 +--- a/drivers/gpu/drm/i810/i810_drv.h ++++ b/drivers/gpu/drm/i810/i810_drv.h +@@ -108,8 +108,8 @@ typedef struct drm_i810_private { + int page_flipping; + + wait_queue_head_t irq_queue; +- atomic_t irq_received; +- atomic_t irq_emitted; ++ atomic_unchecked_t irq_received; ++ atomic_unchecked_t irq_emitted; + + int front_offset; + } drm_i810_private_t; +diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c +index e6162a1..b2ff486 100644 +--- a/drivers/gpu/drm/i915/i915_debugfs.c ++++ b/drivers/gpu/drm/i915/i915_debugfs.c +@@ -500,7 +500,7 @@ static int i915_interrupt_info(struct seq_file *m, void *data) + I915_READ(GTIMR)); + } + seq_printf(m, "Interrupts received: %d\n", +- atomic_read(&dev_priv->irq_received)); ++ atomic_read_unchecked(&dev_priv->irq_received)); + for (i = 0; i < I915_NUM_RINGS; i++) { + if (IS_GEN6(dev) || IS_GEN7(dev)) { + seq_printf(m, "Graphics Interrupt mask (%s): %08x\n", +@@ -1313,7 +1313,7 @@ static int i915_opregion(struct seq_file *m, void *unused) + return ret; + + if (opregion->header) +- seq_write(m, opregion->header, OPREGION_SIZE); ++ seq_write(m, (const void __force_kernel *)opregion->header, OPREGION_SIZE); + + mutex_unlock(&dev->struct_mutex); + +diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c +index ba60f3c..e2dff7f 100644 +--- a/drivers/gpu/drm/i915/i915_dma.c ++++ b/drivers/gpu/drm/i915/i915_dma.c +@@ -1178,7 +1178,7 @@ static bool i915_switcheroo_can_switch(struct pci_dev *pdev) + bool can_switch; + + spin_lock(&dev->count_lock); +- can_switch = (dev->open_count == 0); ++ can_switch = (local_read(&dev->open_count) == 0); + spin_unlock(&dev->count_lock); + return can_switch; + } +diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h +index 5fabc6c..0b08aa1 100644 +--- a/drivers/gpu/drm/i915/i915_drv.h ++++ b/drivers/gpu/drm/i915/i915_drv.h +@@ -240,7 +240,7 @@ struct drm_i915_display_funcs { + /* render clock increase/decrease */ + /* display clock increase/decrease */ + /* pll clock increase/decrease */ +-}; ++} __no_const; + + struct intel_device_info { + u8 gen; +@@ -350,7 +350,7 @@ typedef struct drm_i915_private { + int current_page; + int page_flipping; + +- atomic_t irq_received; ++ atomic_unchecked_t irq_received; + + /* protects the irq masks */ + spinlock_t irq_lock; +@@ -937,7 +937,7 @@ struct drm_i915_gem_object { + * will be page flipped away on the next vblank. When it + * reaches 0, dev_priv->pending_flip_queue will be woken up. + */ +- atomic_t pending_flip; ++ atomic_unchecked_t pending_flip; + }; + + #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base) +@@ -1359,7 +1359,7 @@ extern int intel_setup_gmbus(struct drm_device *dev); + extern void intel_teardown_gmbus(struct drm_device *dev); + extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed); + extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit); +-extern inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter) ++static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter) + { + return container_of(adapter, struct intel_gmbus, adapter)->force_bit; + } +diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c +index de43194..a14c4cc 100644 +--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c ++++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c +@@ -189,7 +189,7 @@ i915_gem_object_set_to_gpu_domain(struct drm_i915_gem_object *obj, + i915_gem_clflush_object(obj); + + if (obj->base.pending_write_domain) +- cd->flips |= atomic_read(&obj->pending_flip); ++ cd->flips |= atomic_read_unchecked(&obj->pending_flip); + + /* The actual obj->write_domain will be updated with + * pending_write_domain after we emit the accumulated flush for all +@@ -933,9 +933,9 @@ i915_gem_check_execbuffer(struct drm_i915_gem_execbuffer2 *exec) + + static int + validate_exec_list(struct drm_i915_gem_exec_object2 *exec, +- int count) ++ unsigned int count) + { +- int i; ++ unsigned int i; + + for (i = 0; i < count; i++) { + char __user *ptr = (char __user *)(uintptr_t)exec[i].relocs_ptr; +diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c +index 26c67a7..8d4cbcb 100644 +--- a/drivers/gpu/drm/i915/i915_irq.c ++++ b/drivers/gpu/drm/i915/i915_irq.c +@@ -496,7 +496,7 @@ static irqreturn_t ivybridge_irq_handler(DRM_IRQ_ARGS) + u32 de_iir, gt_iir, de_ier, pch_iir, pm_iir; + struct drm_i915_master_private *master_priv; + +- atomic_inc(&dev_priv->irq_received); ++ atomic_inc_unchecked(&dev_priv->irq_received); + + /* disable master interrupt before clearing iir */ + de_ier = I915_READ(DEIER); +@@ -579,7 +579,7 @@ static irqreturn_t ironlake_irq_handler(DRM_IRQ_ARGS) + struct drm_i915_master_private *master_priv; + u32 bsd_usr_interrupt = GT_BSD_USER_INTERRUPT; + +- atomic_inc(&dev_priv->irq_received); ++ atomic_inc_unchecked(&dev_priv->irq_received); + + if (IS_GEN6(dev)) + bsd_usr_interrupt = GT_GEN6_BSD_USER_INTERRUPT; +@@ -1291,7 +1291,7 @@ static irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS) + int ret = IRQ_NONE, pipe; + bool blc_event = false; + +- atomic_inc(&dev_priv->irq_received); ++ atomic_inc_unchecked(&dev_priv->irq_received); + + iir = I915_READ(IIR); + +@@ -1802,7 +1802,7 @@ static void ironlake_irq_preinstall(struct drm_device *dev) + { + drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; + +- atomic_set(&dev_priv->irq_received, 0); ++ atomic_set_unchecked(&dev_priv->irq_received, 0); + + INIT_WORK(&dev_priv->hotplug_work, i915_hotplug_work_func); + INIT_WORK(&dev_priv->error_work, i915_error_work_func); +@@ -1979,7 +1979,7 @@ static void i915_driver_irq_preinstall(struct drm_device * dev) + drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; + int pipe; + +- atomic_set(&dev_priv->irq_received, 0); ++ atomic_set_unchecked(&dev_priv->irq_received, 0); + + INIT_WORK(&dev_priv->hotplug_work, i915_hotplug_work_func); + INIT_WORK(&dev_priv->error_work, i915_error_work_func); +diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c +index d4d162f..b49a04e 100644 +--- a/drivers/gpu/drm/i915/intel_display.c ++++ b/drivers/gpu/drm/i915/intel_display.c +@@ -2254,7 +2254,7 @@ intel_finish_fb(struct drm_framebuffer *old_fb) + + wait_event(dev_priv->pending_flip_queue, + atomic_read(&dev_priv->mm.wedged) || +- atomic_read(&obj->pending_flip) == 0); ++ atomic_read_unchecked(&obj->pending_flip) == 0); + + /* Big Hammer, we also need to ensure that any pending + * MI_WAIT_FOR_EVENT inside a user batch buffer on the +@@ -2919,7 +2919,7 @@ static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) + obj = to_intel_framebuffer(crtc->fb)->obj; + dev_priv = crtc->dev->dev_private; + wait_event(dev_priv->pending_flip_queue, +- atomic_read(&obj->pending_flip) == 0); ++ atomic_read_unchecked(&obj->pending_flip) == 0); + } + + static bool intel_crtc_driving_pch(struct drm_crtc *crtc) +@@ -7284,9 +7284,8 @@ static void do_intel_finish_page_flip(struct drm_device *dev, + + obj = work->old_fb_obj; + +- atomic_clear_mask(1 << intel_crtc->plane, +- &obj->pending_flip.counter); +- if (atomic_read(&obj->pending_flip) == 0) ++ atomic_clear_mask_unchecked(1 << intel_crtc->plane, &obj->pending_flip); ++ if (atomic_read_unchecked(&obj->pending_flip) == 0) + wake_up(&dev_priv->pending_flip_queue); + + schedule_work(&work->work); +@@ -7582,7 +7581,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, + /* Block clients from rendering to the new back buffer until + * the flip occurs and the object is no longer visible. + */ +- atomic_add(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); ++ atomic_add_unchecked(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); + + ret = dev_priv->display.queue_flip(dev, crtc, fb, obj); + if (ret) +@@ -7596,7 +7595,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, + return 0; + + cleanup_pending: +- atomic_sub(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); ++ atomic_sub_unchecked(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); + drm_gem_object_unreference(&work->old_fb_obj->base); + drm_gem_object_unreference(&obj->base); + mutex_unlock(&dev->struct_mutex); +diff --git a/drivers/gpu/drm/mga/mga_drv.h b/drivers/gpu/drm/mga/mga_drv.h +index 54558a0..2d97005 100644 +--- a/drivers/gpu/drm/mga/mga_drv.h ++++ b/drivers/gpu/drm/mga/mga_drv.h +@@ -120,9 +120,9 @@ typedef struct drm_mga_private { + u32 clear_cmd; + u32 maccess; + +- atomic_t vbl_received; /**< Number of vblanks received. */ ++ atomic_unchecked_t vbl_received; /**< Number of vblanks received. */ + wait_queue_head_t fence_queue; +- atomic_t last_fence_retired; ++ atomic_unchecked_t last_fence_retired; + u32 next_fence_to_post; + + unsigned int fb_cpp; +diff --git a/drivers/gpu/drm/mga/mga_irq.c b/drivers/gpu/drm/mga/mga_irq.c +index 2581202..f230a8d9 100644 +--- a/drivers/gpu/drm/mga/mga_irq.c ++++ b/drivers/gpu/drm/mga/mga_irq.c +@@ -44,7 +44,7 @@ u32 mga_get_vblank_counter(struct drm_device *dev, int crtc) + if (crtc != 0) + return 0; + +- return atomic_read(&dev_priv->vbl_received); ++ return atomic_read_unchecked(&dev_priv->vbl_received); + } + + +@@ -60,7 +60,7 @@ irqreturn_t mga_driver_irq_handler(DRM_IRQ_ARGS) + /* VBLANK interrupt */ + if (status & MGA_VLINEPEN) { + MGA_WRITE(MGA_ICLEAR, MGA_VLINEICLR); +- atomic_inc(&dev_priv->vbl_received); ++ atomic_inc_unchecked(&dev_priv->vbl_received); + drm_handle_vblank(dev, 0); + handled = 1; + } +@@ -79,7 +79,7 @@ irqreturn_t mga_driver_irq_handler(DRM_IRQ_ARGS) + if ((prim_start & ~0x03) != (prim_end & ~0x03)) + MGA_WRITE(MGA_PRIMEND, prim_end); + +- atomic_inc(&dev_priv->last_fence_retired); ++ atomic_inc_unchecked(&dev_priv->last_fence_retired); + DRM_WAKEUP(&dev_priv->fence_queue); + handled = 1; + } +@@ -130,7 +130,7 @@ int mga_driver_fence_wait(struct drm_device *dev, unsigned int *sequence) + * using fences. + */ + DRM_WAIT_ON(ret, dev_priv->fence_queue, 3 * DRM_HZ, +- (((cur_fence = atomic_read(&dev_priv->last_fence_retired)) ++ (((cur_fence = atomic_read_unchecked(&dev_priv->last_fence_retired)) + - *sequence) <= (1 << 23))); + + *sequence = cur_fence; +diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c +index 0be4a81..7464804 100644 +--- a/drivers/gpu/drm/nouveau/nouveau_bios.c ++++ b/drivers/gpu/drm/nouveau/nouveau_bios.c +@@ -5329,7 +5329,7 @@ parse_bit_U_tbl_entry(struct drm_device *dev, struct nvbios *bios, + struct bit_table { + const char id; + int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *); +-}; ++} __no_const; + + #define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry }) + +diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h +index 3aef353..0ad1322 100644 +--- a/drivers/gpu/drm/nouveau/nouveau_drv.h ++++ b/drivers/gpu/drm/nouveau/nouveau_drv.h +@@ -240,7 +240,7 @@ struct nouveau_channel { + struct list_head pending; + uint32_t sequence; + uint32_t sequence_ack; +- atomic_t last_sequence_irq; ++ atomic_unchecked_t last_sequence_irq; + struct nouveau_vma vma; + } fence; + +@@ -321,7 +321,7 @@ struct nouveau_exec_engine { + u32 handle, u16 class); + void (*set_tile_region)(struct drm_device *dev, int i); + void (*tlb_flush)(struct drm_device *, int engine); +-}; ++} __no_const; + + struct nouveau_instmem_engine { + void *priv; +@@ -343,13 +343,13 @@ struct nouveau_instmem_engine { + struct nouveau_mc_engine { + int (*init)(struct drm_device *dev); + void (*takedown)(struct drm_device *dev); +-}; ++} __no_const; + + struct nouveau_timer_engine { + int (*init)(struct drm_device *dev); + void (*takedown)(struct drm_device *dev); + uint64_t (*read)(struct drm_device *dev); +-}; ++} __no_const; + + struct nouveau_fb_engine { + int num_tiles; +@@ -590,7 +590,7 @@ struct nouveau_vram_engine { + void (*put)(struct drm_device *, struct nouveau_mem **); + + bool (*flags_valid)(struct drm_device *, u32 tile_flags); +-}; ++} __no_const; + + struct nouveau_engine { + struct nouveau_instmem_engine instmem; +@@ -739,7 +739,7 @@ struct drm_nouveau_private { + struct drm_global_reference mem_global_ref; + struct ttm_bo_global_ref bo_global_ref; + struct ttm_bo_device bdev; +- atomic_t validate_sequence; ++ atomic_unchecked_t validate_sequence; + } ttm; + + struct { +diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c +index c1dc20f..4df673c 100644 +--- a/drivers/gpu/drm/nouveau/nouveau_fence.c ++++ b/drivers/gpu/drm/nouveau/nouveau_fence.c +@@ -85,7 +85,7 @@ nouveau_fence_update(struct nouveau_channel *chan) + if (USE_REFCNT(dev)) + sequence = nvchan_rd32(chan, 0x48); + else +- sequence = atomic_read(&chan->fence.last_sequence_irq); ++ sequence = atomic_read_unchecked(&chan->fence.last_sequence_irq); + + if (chan->fence.sequence_ack == sequence) + goto out; +@@ -538,7 +538,7 @@ nouveau_fence_channel_init(struct nouveau_channel *chan) + return ret; + } + +- atomic_set(&chan->fence.last_sequence_irq, 0); ++ atomic_set_unchecked(&chan->fence.last_sequence_irq, 0); + return 0; + } + +diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c +index ed52a6f..484acdc 100644 +--- a/drivers/gpu/drm/nouveau/nouveau_gem.c ++++ b/drivers/gpu/drm/nouveau/nouveau_gem.c +@@ -314,7 +314,7 @@ validate_init(struct nouveau_channel *chan, struct drm_file *file_priv, + int trycnt = 0; + int ret, i; + +- sequence = atomic_add_return(1, &dev_priv->ttm.validate_sequence); ++ sequence = atomic_add_return_unchecked(1, &dev_priv->ttm.validate_sequence); + retry: + if (++trycnt > 100000) { + NV_ERROR(dev, "%s failed and gave up.\n", __func__); +diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c +index c2a8511..4b996f9 100644 +--- a/drivers/gpu/drm/nouveau/nouveau_state.c ++++ b/drivers/gpu/drm/nouveau/nouveau_state.c +@@ -588,7 +588,7 @@ static bool nouveau_switcheroo_can_switch(struct pci_dev *pdev) + bool can_switch; + + spin_lock(&dev->count_lock); +- can_switch = (dev->open_count == 0); ++ can_switch = (local_read(&dev->open_count) == 0); + spin_unlock(&dev->count_lock); + return can_switch; + } +diff --git a/drivers/gpu/drm/nouveau/nv04_graph.c b/drivers/gpu/drm/nouveau/nv04_graph.c +index dbdea8e..cd6eeeb 100644 +--- a/drivers/gpu/drm/nouveau/nv04_graph.c ++++ b/drivers/gpu/drm/nouveau/nv04_graph.c +@@ -554,7 +554,7 @@ static int + nv04_graph_mthd_set_ref(struct nouveau_channel *chan, + u32 class, u32 mthd, u32 data) + { +- atomic_set(&chan->fence.last_sequence_irq, data); ++ atomic_set_unchecked(&chan->fence.last_sequence_irq, data); + return 0; + } + +diff --git a/drivers/gpu/drm/nouveau/nv50_sor.c b/drivers/gpu/drm/nouveau/nv50_sor.c +index 2746402..c8dc4a4 100644 +--- a/drivers/gpu/drm/nouveau/nv50_sor.c ++++ b/drivers/gpu/drm/nouveau/nv50_sor.c +@@ -304,7 +304,7 @@ nv50_sor_dpms(struct drm_encoder *encoder, int mode) + } + + if (nv_encoder->dcb->type == OUTPUT_DP) { +- struct dp_train_func func = { ++ static struct dp_train_func func = { + .link_set = nv50_sor_dp_link_set, + .train_set = nv50_sor_dp_train_set, + .train_adj = nv50_sor_dp_train_adj +diff --git a/drivers/gpu/drm/nouveau/nvd0_display.c b/drivers/gpu/drm/nouveau/nvd0_display.c +index 0247250..d2f6aaf 100644 +--- a/drivers/gpu/drm/nouveau/nvd0_display.c ++++ b/drivers/gpu/drm/nouveau/nvd0_display.c +@@ -1366,7 +1366,7 @@ nvd0_sor_dpms(struct drm_encoder *encoder, int mode) + nv_wait(dev, 0x61c030 + (or * 0x0800), 0x10000000, 0x00000000); + + if (nv_encoder->dcb->type == OUTPUT_DP) { +- struct dp_train_func func = { ++ static struct dp_train_func func = { + .link_set = nvd0_sor_dp_link_set, + .train_set = nvd0_sor_dp_train_set, + .train_adj = nvd0_sor_dp_train_adj +diff --git a/drivers/gpu/drm/r128/r128_cce.c b/drivers/gpu/drm/r128/r128_cce.c +index bcac90b..53bfc76 100644 +--- a/drivers/gpu/drm/r128/r128_cce.c ++++ b/drivers/gpu/drm/r128/r128_cce.c +@@ -378,7 +378,7 @@ static int r128_do_init_cce(struct drm_device *dev, drm_r128_init_t *init) + + /* GH: Simple idle check. + */ +- atomic_set(&dev_priv->idle_count, 0); ++ atomic_set_unchecked(&dev_priv->idle_count, 0); + + /* We don't support anything other than bus-mastering ring mode, + * but the ring can be in either AGP or PCI space for the ring +diff --git a/drivers/gpu/drm/r128/r128_drv.h b/drivers/gpu/drm/r128/r128_drv.h +index 930c71b..499aded 100644 +--- a/drivers/gpu/drm/r128/r128_drv.h ++++ b/drivers/gpu/drm/r128/r128_drv.h +@@ -90,14 +90,14 @@ typedef struct drm_r128_private { + int is_pci; + unsigned long cce_buffers_offset; + +- atomic_t idle_count; ++ atomic_unchecked_t idle_count; + + int page_flipping; + int current_page; + u32 crtc_offset; + u32 crtc_offset_cntl; + +- atomic_t vbl_received; ++ atomic_unchecked_t vbl_received; + + u32 color_fmt; + unsigned int front_offset; +diff --git a/drivers/gpu/drm/r128/r128_irq.c b/drivers/gpu/drm/r128/r128_irq.c +index 429d5a0..7e899ed 100644 +--- a/drivers/gpu/drm/r128/r128_irq.c ++++ b/drivers/gpu/drm/r128/r128_irq.c +@@ -42,7 +42,7 @@ u32 r128_get_vblank_counter(struct drm_device *dev, int crtc) + if (crtc != 0) + return 0; + +- return atomic_read(&dev_priv->vbl_received); ++ return atomic_read_unchecked(&dev_priv->vbl_received); + } + + irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS) +@@ -56,7 +56,7 @@ irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS) + /* VBLANK interrupt */ + if (status & R128_CRTC_VBLANK_INT) { + R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK); +- atomic_inc(&dev_priv->vbl_received); ++ atomic_inc_unchecked(&dev_priv->vbl_received); + drm_handle_vblank(dev, 0); + return IRQ_HANDLED; + } +diff --git a/drivers/gpu/drm/r128/r128_state.c b/drivers/gpu/drm/r128/r128_state.c +index a9e33ce..09edd4b 100644 +--- a/drivers/gpu/drm/r128/r128_state.c ++++ b/drivers/gpu/drm/r128/r128_state.c +@@ -321,10 +321,10 @@ static void r128_clear_box(drm_r128_private_t *dev_priv, + + static void r128_cce_performance_boxes(drm_r128_private_t *dev_priv) + { +- if (atomic_read(&dev_priv->idle_count) == 0) ++ if (atomic_read_unchecked(&dev_priv->idle_count) == 0) + r128_clear_box(dev_priv, 64, 4, 8, 8, 0, 255, 0); + else +- atomic_set(&dev_priv->idle_count, 0); ++ atomic_set_unchecked(&dev_priv->idle_count, 0); + } + + #endif +diff --git a/drivers/gpu/drm/radeon/mkregtable.c b/drivers/gpu/drm/radeon/mkregtable.c +index 5a82b6b..9e69c73 100644 +--- a/drivers/gpu/drm/radeon/mkregtable.c ++++ b/drivers/gpu/drm/radeon/mkregtable.c +@@ -637,14 +637,14 @@ static int parser_auth(struct table *t, const char *filename) + regex_t mask_rex; + regmatch_t match[4]; + char buf[1024]; +- size_t end; ++ long end; + int len; + int done = 0; + int r; + unsigned o; + struct offset *offset; + char last_reg_s[10]; +- int last_reg; ++ unsigned long last_reg; + + if (regcomp + (&mask_rex, "(0x[0-9a-fA-F]*) *([_a-zA-Z0-9]*)", REG_EXTENDED)) { +diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h +index 138b952..d74f9cb 100644 +--- a/drivers/gpu/drm/radeon/radeon.h ++++ b/drivers/gpu/drm/radeon/radeon.h +@@ -253,7 +253,7 @@ struct radeon_fence_driver { + uint32_t scratch_reg; + uint64_t gpu_addr; + volatile uint32_t *cpu_addr; +- atomic_t seq; ++ atomic_unchecked_t seq; + uint32_t last_seq; + unsigned long last_jiffies; + unsigned long last_timeout; +@@ -753,7 +753,7 @@ struct r600_blit_cp_primitives { + int x2, int y2); + void (*draw_auto)(struct radeon_device *rdev); + void (*set_default_state)(struct radeon_device *rdev); +-}; ++} __no_const; + + struct r600_blit { + struct mutex mutex; +@@ -1246,7 +1246,7 @@ struct radeon_asic { + u32 (*page_flip)(struct radeon_device *rdev, int crtc, u64 crtc_base); + void (*post_page_flip)(struct radeon_device *rdev, int crtc); + } pflip; +-}; ++} __no_const; + + /* + * Asic structures +diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c +index 5992502..c19c633 100644 +--- a/drivers/gpu/drm/radeon/radeon_device.c ++++ b/drivers/gpu/drm/radeon/radeon_device.c +@@ -691,7 +691,7 @@ static bool radeon_switcheroo_can_switch(struct pci_dev *pdev) + bool can_switch; + + spin_lock(&dev->count_lock); +- can_switch = (dev->open_count == 0); ++ can_switch = (local_read(&dev->open_count) == 0); + spin_unlock(&dev->count_lock); + return can_switch; + } +diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h +index a1b59ca..86f2d44 100644 +--- a/drivers/gpu/drm/radeon/radeon_drv.h ++++ b/drivers/gpu/drm/radeon/radeon_drv.h +@@ -255,7 +255,7 @@ typedef struct drm_radeon_private { + + /* SW interrupt */ + wait_queue_head_t swi_queue; +- atomic_t swi_emitted; ++ atomic_unchecked_t swi_emitted; + int vblank_crtc; + uint32_t irq_enable_reg; + uint32_t r500_disp_irq_reg; +diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c +index 4bd36a3..e66fe9c 100644 +--- a/drivers/gpu/drm/radeon/radeon_fence.c ++++ b/drivers/gpu/drm/radeon/radeon_fence.c +@@ -70,7 +70,7 @@ int radeon_fence_emit(struct radeon_device *rdev, struct radeon_fence *fence) + write_unlock_irqrestore(&rdev->fence_lock, irq_flags); + return 0; + } +- fence->seq = atomic_add_return(1, &rdev->fence_drv[fence->ring].seq); ++ fence->seq = atomic_add_return_unchecked(1, &rdev->fence_drv[fence->ring].seq); + if (!rdev->ring[fence->ring].ready) + /* FIXME: cp is not running assume everythings is done right + * away +@@ -405,7 +405,7 @@ int radeon_fence_driver_start_ring(struct radeon_device *rdev, int ring) + } + rdev->fence_drv[ring].cpu_addr = &rdev->wb.wb[index/4]; + rdev->fence_drv[ring].gpu_addr = rdev->wb.gpu_addr + index; +- radeon_fence_write(rdev, atomic_read(&rdev->fence_drv[ring].seq), ring); ++ radeon_fence_write(rdev, atomic_read_unchecked(&rdev->fence_drv[ring].seq), ring); + rdev->fence_drv[ring].initialized = true; + DRM_INFO("fence driver on ring %d use gpu addr 0x%08Lx and cpu addr 0x%p\n", + ring, rdev->fence_drv[ring].gpu_addr, rdev->fence_drv[ring].cpu_addr); +@@ -418,7 +418,7 @@ static void radeon_fence_driver_init_ring(struct radeon_device *rdev, int ring) + rdev->fence_drv[ring].scratch_reg = -1; + rdev->fence_drv[ring].cpu_addr = NULL; + rdev->fence_drv[ring].gpu_addr = 0; +- atomic_set(&rdev->fence_drv[ring].seq, 0); ++ atomic_set_unchecked(&rdev->fence_drv[ring].seq, 0); + INIT_LIST_HEAD(&rdev->fence_drv[ring].created); + INIT_LIST_HEAD(&rdev->fence_drv[ring].emitted); + INIT_LIST_HEAD(&rdev->fence_drv[ring].signaled); +diff --git a/drivers/gpu/drm/radeon/radeon_ioc32.c b/drivers/gpu/drm/radeon/radeon_ioc32.c +index 48b7cea..342236f 100644 +--- a/drivers/gpu/drm/radeon/radeon_ioc32.c ++++ b/drivers/gpu/drm/radeon/radeon_ioc32.c +@@ -359,7 +359,7 @@ static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd, + request = compat_alloc_user_space(sizeof(*request)); + if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) + || __put_user(req32.param, &request->param) +- || __put_user((void __user *)(unsigned long)req32.value, ++ || __put_user((unsigned long)req32.value, + &request->value)) + return -EFAULT; + +diff --git a/drivers/gpu/drm/radeon/radeon_irq.c b/drivers/gpu/drm/radeon/radeon_irq.c +index 00da384..32f972d 100644 +--- a/drivers/gpu/drm/radeon/radeon_irq.c ++++ b/drivers/gpu/drm/radeon/radeon_irq.c +@@ -225,8 +225,8 @@ static int radeon_emit_irq(struct drm_device * dev) + unsigned int ret; + RING_LOCALS; + +- atomic_inc(&dev_priv->swi_emitted); +- ret = atomic_read(&dev_priv->swi_emitted); ++ atomic_inc_unchecked(&dev_priv->swi_emitted); ++ ret = atomic_read_unchecked(&dev_priv->swi_emitted); + + BEGIN_RING(4); + OUT_RING_REG(RADEON_LAST_SWI_REG, ret); +@@ -352,7 +352,7 @@ int radeon_driver_irq_postinstall(struct drm_device *dev) + drm_radeon_private_t *dev_priv = + (drm_radeon_private_t *) dev->dev_private; + +- atomic_set(&dev_priv->swi_emitted, 0); ++ atomic_set_unchecked(&dev_priv->swi_emitted, 0); + DRM_INIT_WAITQUEUE(&dev_priv->swi_queue); + + dev->max_vblank_count = 0x001fffff; +diff --git a/drivers/gpu/drm/radeon/radeon_state.c b/drivers/gpu/drm/radeon/radeon_state.c +index e8422ae..d22d4a8 100644 +--- a/drivers/gpu/drm/radeon/radeon_state.c ++++ b/drivers/gpu/drm/radeon/radeon_state.c +@@ -2168,7 +2168,7 @@ static int radeon_cp_clear(struct drm_device *dev, void *data, struct drm_file * + if (sarea_priv->nbox > RADEON_NR_SAREA_CLIPRECTS) + sarea_priv->nbox = RADEON_NR_SAREA_CLIPRECTS; + +- if (DRM_COPY_FROM_USER(&depth_boxes, clear->depth_boxes, ++ if (sarea_priv->nbox > RADEON_NR_SAREA_CLIPRECTS || DRM_COPY_FROM_USER(&depth_boxes, clear->depth_boxes, + sarea_priv->nbox * sizeof(depth_boxes[0]))) + return -EFAULT; + +@@ -3031,7 +3031,7 @@ static int radeon_cp_getparam(struct drm_device *dev, void *data, struct drm_fil + { + drm_radeon_private_t *dev_priv = dev->dev_private; + drm_radeon_getparam_t *param = data; +- int value; ++ int value = 0; + + DRM_DEBUG("pid=%d\n", DRM_CURRENTPID); + +diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c +index f493c64..524ab6b 100644 +--- a/drivers/gpu/drm/radeon/radeon_ttm.c ++++ b/drivers/gpu/drm/radeon/radeon_ttm.c +@@ -843,8 +843,10 @@ int radeon_mmap(struct file *filp, struct vm_area_struct *vma) + } + if (unlikely(ttm_vm_ops == NULL)) { + ttm_vm_ops = vma->vm_ops; +- radeon_ttm_vm_ops = *ttm_vm_ops; +- radeon_ttm_vm_ops.fault = &radeon_ttm_fault; ++ pax_open_kernel(); ++ memcpy((void *)&radeon_ttm_vm_ops, ttm_vm_ops, sizeof(radeon_ttm_vm_ops)); ++ *(void **)&radeon_ttm_vm_ops.fault = &radeon_ttm_fault; ++ pax_close_kernel(); + } + vma->vm_ops = &radeon_ttm_vm_ops; + return 0; +diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c +index f2c3b9d..d5a376b 100644 +--- a/drivers/gpu/drm/radeon/rs690.c ++++ b/drivers/gpu/drm/radeon/rs690.c +@@ -304,9 +304,11 @@ void rs690_crtc_bandwidth_compute(struct radeon_device *rdev, + if (rdev->pm.max_bandwidth.full > rdev->pm.sideport_bandwidth.full && + rdev->pm.sideport_bandwidth.full) + rdev->pm.max_bandwidth = rdev->pm.sideport_bandwidth; +- read_delay_latency.full = dfixed_const(370 * 800 * 1000); ++ read_delay_latency.full = dfixed_const(800 * 1000); + read_delay_latency.full = dfixed_div(read_delay_latency, + rdev->pm.igp_sideport_mclk); ++ a.full = dfixed_const(370); ++ read_delay_latency.full = dfixed_mul(read_delay_latency, a); + } else { + if (rdev->pm.max_bandwidth.full > rdev->pm.k8_bandwidth.full && + rdev->pm.k8_bandwidth.full) +diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c +index ebc6fac..a8313ed 100644 +--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c ++++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c +@@ -394,9 +394,9 @@ static int ttm_pool_get_num_unused_pages(void) + static int ttm_pool_mm_shrink(struct shrinker *shrink, + struct shrink_control *sc) + { +- static atomic_t start_pool = ATOMIC_INIT(0); ++ static atomic_unchecked_t start_pool = ATOMIC_INIT(0); + unsigned i; +- unsigned pool_offset = atomic_add_return(1, &start_pool); ++ unsigned pool_offset = atomic_add_return_unchecked(1, &start_pool); + struct ttm_page_pool *pool; + int shrink_pages = sc->nr_to_scan; + +diff --git a/drivers/gpu/drm/via/via_drv.h b/drivers/gpu/drm/via/via_drv.h +index 88edacc..1e5412b 100644 +--- a/drivers/gpu/drm/via/via_drv.h ++++ b/drivers/gpu/drm/via/via_drv.h +@@ -51,7 +51,7 @@ typedef struct drm_via_ring_buffer { + typedef uint32_t maskarray_t[5]; + + typedef struct drm_via_irq { +- atomic_t irq_received; ++ atomic_unchecked_t irq_received; + uint32_t pending_mask; + uint32_t enable_mask; + wait_queue_head_t irq_queue; +@@ -75,7 +75,7 @@ typedef struct drm_via_private { + struct timeval last_vblank; + int last_vblank_valid; + unsigned usec_per_vblank; +- atomic_t vbl_received; ++ atomic_unchecked_t vbl_received; + drm_via_state_t hc_state; + char pci_buf[VIA_PCI_BUF_SIZE]; + const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE]; +diff --git a/drivers/gpu/drm/via/via_irq.c b/drivers/gpu/drm/via/via_irq.c +index d391f48..10c8ca3 100644 +--- a/drivers/gpu/drm/via/via_irq.c ++++ b/drivers/gpu/drm/via/via_irq.c +@@ -102,7 +102,7 @@ u32 via_get_vblank_counter(struct drm_device *dev, int crtc) + if (crtc != 0) + return 0; + +- return atomic_read(&dev_priv->vbl_received); ++ return atomic_read_unchecked(&dev_priv->vbl_received); + } + + irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS) +@@ -117,8 +117,8 @@ irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS) + + status = VIA_READ(VIA_REG_INTERRUPT); + if (status & VIA_IRQ_VBLANK_PENDING) { +- atomic_inc(&dev_priv->vbl_received); +- if (!(atomic_read(&dev_priv->vbl_received) & 0x0F)) { ++ atomic_inc_unchecked(&dev_priv->vbl_received); ++ if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0x0F)) { + do_gettimeofday(&cur_vblank); + if (dev_priv->last_vblank_valid) { + dev_priv->usec_per_vblank = +@@ -128,7 +128,7 @@ irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS) + dev_priv->last_vblank = cur_vblank; + dev_priv->last_vblank_valid = 1; + } +- if (!(atomic_read(&dev_priv->vbl_received) & 0xFF)) { ++ if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0xFF)) { + DRM_DEBUG("US per vblank is: %u\n", + dev_priv->usec_per_vblank); + } +@@ -138,7 +138,7 @@ irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS) + + for (i = 0; i < dev_priv->num_irqs; ++i) { + if (status & cur_irq->pending_mask) { +- atomic_inc(&cur_irq->irq_received); ++ atomic_inc_unchecked(&cur_irq->irq_received); + DRM_WAKEUP(&cur_irq->irq_queue); + handled = 1; + if (dev_priv->irq_map[drm_via_irq_dma0_td] == i) +@@ -243,11 +243,11 @@ via_driver_irq_wait(struct drm_device *dev, unsigned int irq, int force_sequence + DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * DRM_HZ, + ((VIA_READ(masks[irq][2]) & masks[irq][3]) == + masks[irq][4])); +- cur_irq_sequence = atomic_read(&cur_irq->irq_received); ++ cur_irq_sequence = atomic_read_unchecked(&cur_irq->irq_received); + } else { + DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * DRM_HZ, + (((cur_irq_sequence = +- atomic_read(&cur_irq->irq_received)) - ++ atomic_read_unchecked(&cur_irq->irq_received)) - + *sequence) <= (1 << 23))); + } + *sequence = cur_irq_sequence; +@@ -285,7 +285,7 @@ void via_driver_irq_preinstall(struct drm_device *dev) + } + + for (i = 0; i < dev_priv->num_irqs; ++i) { +- atomic_set(&cur_irq->irq_received, 0); ++ atomic_set_unchecked(&cur_irq->irq_received, 0); + cur_irq->enable_mask = dev_priv->irq_masks[i][0]; + cur_irq->pending_mask = dev_priv->irq_masks[i][1]; + DRM_INIT_WAITQUEUE(&cur_irq->irq_queue); +@@ -367,7 +367,7 @@ int via_wait_irq(struct drm_device *dev, void *data, struct drm_file *file_priv) + switch (irqwait->request.type & ~VIA_IRQ_FLAGS_MASK) { + case VIA_IRQ_RELATIVE: + irqwait->request.sequence += +- atomic_read(&cur_irq->irq_received); ++ atomic_read_unchecked(&cur_irq->irq_received); + irqwait->request.type &= ~_DRM_VBLANK_RELATIVE; + case VIA_IRQ_ABSOLUTE: + break; +diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +index d0f2c07..9ebd9c3 100644 +--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h ++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +@@ -263,7 +263,7 @@ struct vmw_private { + * Fencing and IRQs. + */ + +- atomic_t marker_seq; ++ atomic_unchecked_t marker_seq; + wait_queue_head_t fence_queue; + wait_queue_head_t fifo_queue; + int fence_queue_waiters; /* Protected by hw_mutex */ +diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c +index a0c2f12..68ae6cb 100644 +--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c ++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c +@@ -137,7 +137,7 @@ int vmw_fifo_init(struct vmw_private *dev_priv, struct vmw_fifo_state *fifo) + (unsigned int) min, + (unsigned int) fifo->capabilities); + +- atomic_set(&dev_priv->marker_seq, dev_priv->last_read_seqno); ++ atomic_set_unchecked(&dev_priv->marker_seq, dev_priv->last_read_seqno); + iowrite32(dev_priv->last_read_seqno, fifo_mem + SVGA_FIFO_FENCE); + vmw_marker_queue_init(&fifo->marker_queue); + return vmw_fifo_send_fence(dev_priv, &dummy); +@@ -355,7 +355,7 @@ void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes) + if (reserveable) + iowrite32(bytes, fifo_mem + + SVGA_FIFO_RESERVED); +- return fifo_mem + (next_cmd >> 2); ++ return (__le32 __force_kernel *)fifo_mem + (next_cmd >> 2); + } else { + need_bounce = true; + } +@@ -475,7 +475,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno) + + fm = vmw_fifo_reserve(dev_priv, bytes); + if (unlikely(fm == NULL)) { +- *seqno = atomic_read(&dev_priv->marker_seq); ++ *seqno = atomic_read_unchecked(&dev_priv->marker_seq); + ret = -ENOMEM; + (void)vmw_fallback_wait(dev_priv, false, true, *seqno, + false, 3*HZ); +@@ -483,7 +483,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno) + } + + do { +- *seqno = atomic_add_return(1, &dev_priv->marker_seq); ++ *seqno = atomic_add_return_unchecked(1, &dev_priv->marker_seq); + } while (*seqno == 0); + + if (!(fifo_state->capabilities & SVGA_FIFO_CAP_FENCE)) { +diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c +index cabc95f..14b3d77 100644 +--- a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c ++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c +@@ -107,7 +107,7 @@ bool vmw_seqno_passed(struct vmw_private *dev_priv, + * emitted. Then the fence is stale and signaled. + */ + +- ret = ((atomic_read(&dev_priv->marker_seq) - seqno) ++ ret = ((atomic_read_unchecked(&dev_priv->marker_seq) - seqno) + > VMW_FENCE_WRAP); + + return ret; +@@ -138,7 +138,7 @@ int vmw_fallback_wait(struct vmw_private *dev_priv, + + if (fifo_idle) + down_read(&fifo_state->rwsem); +- signal_seq = atomic_read(&dev_priv->marker_seq); ++ signal_seq = atomic_read_unchecked(&dev_priv->marker_seq); + ret = 0; + + for (;;) { +diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c +index 8a8725c..afed796 100644 +--- a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c ++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c +@@ -151,7 +151,7 @@ int vmw_wait_lag(struct vmw_private *dev_priv, + while (!vmw_lag_lt(queue, us)) { + spin_lock(&queue->lock); + if (list_empty(&queue->head)) +- seqno = atomic_read(&dev_priv->marker_seq); ++ seqno = atomic_read_unchecked(&dev_priv->marker_seq); + else { + marker = list_first_entry(&queue->head, + struct vmw_marker, head); +diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c +index 054677b..741672a 100644 +--- a/drivers/hid/hid-core.c ++++ b/drivers/hid/hid-core.c +@@ -2070,7 +2070,7 @@ static bool hid_ignore(struct hid_device *hdev) + + int hid_add_device(struct hid_device *hdev) + { +- static atomic_t id = ATOMIC_INIT(0); ++ static atomic_unchecked_t id = ATOMIC_INIT(0); + int ret; + + if (WARN_ON(hdev->status & HID_STAT_ADDED)) +@@ -2085,7 +2085,7 @@ int hid_add_device(struct hid_device *hdev) + /* XXX hack, any other cleaner solution after the driver core + * is converted to allow more than 20 bytes as the device name? */ + dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus, +- hdev->vendor, hdev->product, atomic_inc_return(&id)); ++ hdev->vendor, hdev->product, atomic_inc_return_unchecked(&id)); + + hid_debug_register(hdev, dev_name(&hdev->dev)); + ret = device_add(&hdev->dev); +diff --git a/drivers/hid/hid-wiimote-debug.c b/drivers/hid/hid-wiimote-debug.c +index eec3291..8ed706b 100644 +--- a/drivers/hid/hid-wiimote-debug.c ++++ b/drivers/hid/hid-wiimote-debug.c +@@ -66,7 +66,7 @@ static ssize_t wiidebug_eeprom_read(struct file *f, char __user *u, size_t s, + else if (size == 0) + return -EIO; + +- if (copy_to_user(u, buf, size)) ++ if (size > sizeof(buf) || copy_to_user(u, buf, size)) + return -EFAULT; + + *off += size; +diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c +index b1ec0e2..c295a61 100644 +--- a/drivers/hid/usbhid/hiddev.c ++++ b/drivers/hid/usbhid/hiddev.c +@@ -624,7 +624,7 @@ static long hiddev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) + break; + + case HIDIOCAPPLICATION: +- if (arg < 0 || arg >= hid->maxapplication) ++ if (arg >= hid->maxapplication) + break; + + for (i = 0; i < hid->maxcollection; i++) +diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c +index 4065374..10ed7dc 100644 +--- a/drivers/hv/channel.c ++++ b/drivers/hv/channel.c +@@ -400,8 +400,8 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer, + int ret = 0; + int t; + +- next_gpadl_handle = atomic_read(&vmbus_connection.next_gpadl_handle); +- atomic_inc(&vmbus_connection.next_gpadl_handle); ++ next_gpadl_handle = atomic_read_unchecked(&vmbus_connection.next_gpadl_handle); ++ atomic_inc_unchecked(&vmbus_connection.next_gpadl_handle); + + ret = create_gpadl_header(kbuffer, size, &msginfo, &msgcount); + if (ret) +diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c +index 15956bd..ea34398 100644 +--- a/drivers/hv/hv.c ++++ b/drivers/hv/hv.c +@@ -132,7 +132,7 @@ static u64 do_hypercall(u64 control, void *input, void *output) + u64 output_address = (output) ? virt_to_phys(output) : 0; + u32 output_address_hi = output_address >> 32; + u32 output_address_lo = output_address & 0xFFFFFFFF; +- void *hypercall_page = hv_context.hypercall_page; ++ void *hypercall_page = ktva_ktla(hv_context.hypercall_page); + + __asm__ __volatile__ ("call *%8" : "=d"(hv_status_hi), + "=a"(hv_status_lo) : "d" (control_hi), +diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h +index 699f0d8..f4f19250 100644 +--- a/drivers/hv/hyperv_vmbus.h ++++ b/drivers/hv/hyperv_vmbus.h +@@ -555,7 +555,7 @@ enum vmbus_connect_state { + struct vmbus_connection { + enum vmbus_connect_state conn_state; + +- atomic_t next_gpadl_handle; ++ atomic_unchecked_t next_gpadl_handle; + + /* + * Represents channel interrupts. Each bit position represents a +diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c +index a220e57..428f54d 100644 +--- a/drivers/hv/vmbus_drv.c ++++ b/drivers/hv/vmbus_drv.c +@@ -663,10 +663,10 @@ int vmbus_device_register(struct hv_device *child_device_obj) + { + int ret = 0; + +- static atomic_t device_num = ATOMIC_INIT(0); ++ static atomic_unchecked_t device_num = ATOMIC_INIT(0); + + dev_set_name(&child_device_obj->device, "vmbus_0_%d", +- atomic_inc_return(&device_num)); ++ atomic_inc_return_unchecked(&device_num)); + + child_device_obj->device.bus = &hv_bus; + child_device_obj->device.parent = &hv_acpi_dev->dev; +diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c +index 9140236..ceaef4e 100644 +--- a/drivers/hwmon/acpi_power_meter.c ++++ b/drivers/hwmon/acpi_power_meter.c +@@ -316,8 +316,6 @@ static ssize_t set_trip(struct device *dev, struct device_attribute *devattr, + return res; + + temp /= 1000; +- if (temp < 0) +- return -EINVAL; + + mutex_lock(&resource->lock); + resource->trip[attr->index - 7] = temp; +diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c +index 8b011d0..3de24a1 100644 +--- a/drivers/hwmon/sht15.c ++++ b/drivers/hwmon/sht15.c +@@ -166,7 +166,7 @@ struct sht15_data { + int supply_uV; + bool supply_uV_valid; + struct work_struct update_supply_work; +- atomic_t interrupt_handled; ++ atomic_unchecked_t interrupt_handled; + }; + + /** +@@ -509,13 +509,13 @@ static int sht15_measurement(struct sht15_data *data, + return ret; + + gpio_direction_input(data->pdata->gpio_data); +- atomic_set(&data->interrupt_handled, 0); ++ atomic_set_unchecked(&data->interrupt_handled, 0); + + enable_irq(gpio_to_irq(data->pdata->gpio_data)); + if (gpio_get_value(data->pdata->gpio_data) == 0) { + disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data)); + /* Only relevant if the interrupt hasn't occurred. */ +- if (!atomic_read(&data->interrupt_handled)) ++ if (!atomic_read_unchecked(&data->interrupt_handled)) + schedule_work(&data->read_work); + } + ret = wait_event_timeout(data->wait_queue, +@@ -782,7 +782,7 @@ static irqreturn_t sht15_interrupt_fired(int irq, void *d) + + /* First disable the interrupt */ + disable_irq_nosync(irq); +- atomic_inc(&data->interrupt_handled); ++ atomic_inc_unchecked(&data->interrupt_handled); + /* Then schedule a reading work struct */ + if (data->state != SHT15_READING_NOTHING) + schedule_work(&data->read_work); +@@ -804,11 +804,11 @@ static void sht15_bh_read_data(struct work_struct *work_s) + * If not, then start the interrupt again - care here as could + * have gone low in meantime so verify it hasn't! + */ +- atomic_set(&data->interrupt_handled, 0); ++ atomic_set_unchecked(&data->interrupt_handled, 0); + enable_irq(gpio_to_irq(data->pdata->gpio_data)); + /* If still not occurred or another handler was scheduled */ + if (gpio_get_value(data->pdata->gpio_data) +- || atomic_read(&data->interrupt_handled)) ++ || atomic_read_unchecked(&data->interrupt_handled)) + return; + } + +diff --git a/drivers/i2c/busses/i2c-amd756-s4882.c b/drivers/i2c/busses/i2c-amd756-s4882.c +index 378fcb5..5e91fa8 100644 +--- a/drivers/i2c/busses/i2c-amd756-s4882.c ++++ b/drivers/i2c/busses/i2c-amd756-s4882.c +@@ -43,7 +43,7 @@ + extern struct i2c_adapter amd756_smbus; + + static struct i2c_adapter *s4882_adapter; +-static struct i2c_algorithm *s4882_algo; ++static i2c_algorithm_no_const *s4882_algo; + + /* Wrapper access functions for multiplexed SMBus */ + static DEFINE_MUTEX(amd756_lock); +diff --git a/drivers/i2c/busses/i2c-nforce2-s4985.c b/drivers/i2c/busses/i2c-nforce2-s4985.c +index 29015eb..af2d8e9 100644 +--- a/drivers/i2c/busses/i2c-nforce2-s4985.c ++++ b/drivers/i2c/busses/i2c-nforce2-s4985.c +@@ -41,7 +41,7 @@ + extern struct i2c_adapter *nforce2_smbus; + + static struct i2c_adapter *s4985_adapter; +-static struct i2c_algorithm *s4985_algo; ++static i2c_algorithm_no_const *s4985_algo; + + /* Wrapper access functions for multiplexed SMBus */ + static DEFINE_MUTEX(nforce2_lock); +diff --git a/drivers/i2c/i2c-mux.c b/drivers/i2c/i2c-mux.c +index d7a4833..7fae376 100644 +--- a/drivers/i2c/i2c-mux.c ++++ b/drivers/i2c/i2c-mux.c +@@ -28,7 +28,7 @@ + /* multiplexer per channel data */ + struct i2c_mux_priv { + struct i2c_adapter adap; +- struct i2c_algorithm algo; ++ i2c_algorithm_no_const algo; + + struct i2c_adapter *parent; + void *mux_dev; /* the mux chip/device */ +diff --git a/drivers/ide/aec62xx.c b/drivers/ide/aec62xx.c +index 57d00ca..0145194 100644 +--- a/drivers/ide/aec62xx.c ++++ b/drivers/ide/aec62xx.c +@@ -181,7 +181,7 @@ static const struct ide_port_ops atp86x_port_ops = { + .cable_detect = atp86x_cable_detect, + }; + +-static const struct ide_port_info aec62xx_chipsets[] __devinitdata = { ++static const struct ide_port_info aec62xx_chipsets[] __devinitconst = { + { /* 0: AEC6210 */ + .name = DRV_NAME, + .init_chipset = init_chipset_aec62xx, +diff --git a/drivers/ide/alim15x3.c b/drivers/ide/alim15x3.c +index 2c8016a..911a27c 100644 +--- a/drivers/ide/alim15x3.c ++++ b/drivers/ide/alim15x3.c +@@ -512,7 +512,7 @@ static const struct ide_dma_ops ali_dma_ops = { + .dma_sff_read_status = ide_dma_sff_read_status, + }; + +-static const struct ide_port_info ali15x3_chipset __devinitdata = { ++static const struct ide_port_info ali15x3_chipset __devinitconst = { + .name = DRV_NAME, + .init_chipset = init_chipset_ali15x3, + .init_hwif = init_hwif_ali15x3, +diff --git a/drivers/ide/amd74xx.c b/drivers/ide/amd74xx.c +index 3747b25..56fc995 100644 +--- a/drivers/ide/amd74xx.c ++++ b/drivers/ide/amd74xx.c +@@ -223,7 +223,7 @@ static const struct ide_port_ops amd_port_ops = { + .udma_mask = udma, \ + } + +-static const struct ide_port_info amd74xx_chipsets[] __devinitdata = { ++static const struct ide_port_info amd74xx_chipsets[] __devinitconst = { + /* 0: AMD7401 */ DECLARE_AMD_DEV(0x00, ATA_UDMA2), + /* 1: AMD7409 */ DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA4), + /* 2: AMD7411/7441 */ DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA5), +diff --git a/drivers/ide/atiixp.c b/drivers/ide/atiixp.c +index 15f0ead..cb43480 100644 +--- a/drivers/ide/atiixp.c ++++ b/drivers/ide/atiixp.c +@@ -139,7 +139,7 @@ static const struct ide_port_ops atiixp_port_ops = { + .cable_detect = atiixp_cable_detect, + }; + +-static const struct ide_port_info atiixp_pci_info[] __devinitdata = { ++static const struct ide_port_info atiixp_pci_info[] __devinitconst = { + { /* 0: IXP200/300/400/700 */ + .name = DRV_NAME, + .enablebits = {{0x48,0x01,0x00}, {0x48,0x08,0x00}}, +diff --git a/drivers/ide/cmd64x.c b/drivers/ide/cmd64x.c +index 5f80312..d1fc438 100644 +--- a/drivers/ide/cmd64x.c ++++ b/drivers/ide/cmd64x.c +@@ -327,7 +327,7 @@ static const struct ide_dma_ops cmd646_rev1_dma_ops = { + .dma_sff_read_status = ide_dma_sff_read_status, + }; + +-static const struct ide_port_info cmd64x_chipsets[] __devinitdata = { ++static const struct ide_port_info cmd64x_chipsets[] __devinitconst = { + { /* 0: CMD643 */ + .name = DRV_NAME, + .init_chipset = init_chipset_cmd64x, +diff --git a/drivers/ide/cs5520.c b/drivers/ide/cs5520.c +index 2c1e5f7..1444762 100644 +--- a/drivers/ide/cs5520.c ++++ b/drivers/ide/cs5520.c +@@ -94,7 +94,7 @@ static const struct ide_port_ops cs5520_port_ops = { + .set_dma_mode = cs5520_set_dma_mode, + }; + +-static const struct ide_port_info cyrix_chipset __devinitdata = { ++static const struct ide_port_info cyrix_chipset __devinitconst = { + .name = DRV_NAME, + .enablebits = { { 0x60, 0x01, 0x01 }, { 0x60, 0x02, 0x02 } }, + .port_ops = &cs5520_port_ops, +diff --git a/drivers/ide/cs5530.c b/drivers/ide/cs5530.c +index 4dc4eb9..49b40ad 100644 +--- a/drivers/ide/cs5530.c ++++ b/drivers/ide/cs5530.c +@@ -245,7 +245,7 @@ static const struct ide_port_ops cs5530_port_ops = { + .udma_filter = cs5530_udma_filter, + }; + +-static const struct ide_port_info cs5530_chipset __devinitdata = { ++static const struct ide_port_info cs5530_chipset __devinitconst = { + .name = DRV_NAME, + .init_chipset = init_chipset_cs5530, + .init_hwif = init_hwif_cs5530, +diff --git a/drivers/ide/cs5535.c b/drivers/ide/cs5535.c +index 5059faf..18d4c85 100644 +--- a/drivers/ide/cs5535.c ++++ b/drivers/ide/cs5535.c +@@ -170,7 +170,7 @@ static const struct ide_port_ops cs5535_port_ops = { + .cable_detect = cs5535_cable_detect, + }; + +-static const struct ide_port_info cs5535_chipset __devinitdata = { ++static const struct ide_port_info cs5535_chipset __devinitconst = { + .name = DRV_NAME, + .port_ops = &cs5535_port_ops, + .host_flags = IDE_HFLAG_SINGLE | IDE_HFLAG_POST_SET_MODE, +diff --git a/drivers/ide/cy82c693.c b/drivers/ide/cy82c693.c +index 847553f..3ffb49d 100644 +--- a/drivers/ide/cy82c693.c ++++ b/drivers/ide/cy82c693.c +@@ -163,7 +163,7 @@ static const struct ide_port_ops cy82c693_port_ops = { + .set_dma_mode = cy82c693_set_dma_mode, + }; + +-static const struct ide_port_info cy82c693_chipset __devinitdata = { ++static const struct ide_port_info cy82c693_chipset __devinitconst = { + .name = DRV_NAME, + .init_iops = init_iops_cy82c693, + .port_ops = &cy82c693_port_ops, +diff --git a/drivers/ide/hpt366.c b/drivers/ide/hpt366.c +index 58c51cd..4aec3b8 100644 +--- a/drivers/ide/hpt366.c ++++ b/drivers/ide/hpt366.c +@@ -443,7 +443,7 @@ static struct hpt_timings hpt37x_timings = { + } + }; + +-static const struct hpt_info hpt36x __devinitdata = { ++static const struct hpt_info hpt36x __devinitconst = { + .chip_name = "HPT36x", + .chip_type = HPT36x, + .udma_mask = HPT366_ALLOW_ATA66_3 ? (HPT366_ALLOW_ATA66_4 ? ATA_UDMA4 : ATA_UDMA3) : ATA_UDMA2, +@@ -451,7 +451,7 @@ static const struct hpt_info hpt36x __devinitdata = { + .timings = &hpt36x_timings + }; + +-static const struct hpt_info hpt370 __devinitdata = { ++static const struct hpt_info hpt370 __devinitconst = { + .chip_name = "HPT370", + .chip_type = HPT370, + .udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4, +@@ -459,7 +459,7 @@ static const struct hpt_info hpt370 __devinitdata = { + .timings = &hpt37x_timings + }; + +-static const struct hpt_info hpt370a __devinitdata = { ++static const struct hpt_info hpt370a __devinitconst = { + .chip_name = "HPT370A", + .chip_type = HPT370A, + .udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4, +@@ -467,7 +467,7 @@ static const struct hpt_info hpt370a __devinitdata = { + .timings = &hpt37x_timings + }; + +-static const struct hpt_info hpt374 __devinitdata = { ++static const struct hpt_info hpt374 __devinitconst = { + .chip_name = "HPT374", + .chip_type = HPT374, + .udma_mask = ATA_UDMA5, +@@ -475,7 +475,7 @@ static const struct hpt_info hpt374 __devinitdata = { + .timings = &hpt37x_timings + }; + +-static const struct hpt_info hpt372 __devinitdata = { ++static const struct hpt_info hpt372 __devinitconst = { + .chip_name = "HPT372", + .chip_type = HPT372, + .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, +@@ -483,7 +483,7 @@ static const struct hpt_info hpt372 __devinitdata = { + .timings = &hpt37x_timings + }; + +-static const struct hpt_info hpt372a __devinitdata = { ++static const struct hpt_info hpt372a __devinitconst = { + .chip_name = "HPT372A", + .chip_type = HPT372A, + .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, +@@ -491,7 +491,7 @@ static const struct hpt_info hpt372a __devinitdata = { + .timings = &hpt37x_timings + }; + +-static const struct hpt_info hpt302 __devinitdata = { ++static const struct hpt_info hpt302 __devinitconst = { + .chip_name = "HPT302", + .chip_type = HPT302, + .udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, +@@ -499,7 +499,7 @@ static const struct hpt_info hpt302 __devinitdata = { + .timings = &hpt37x_timings + }; + +-static const struct hpt_info hpt371 __devinitdata = { ++static const struct hpt_info hpt371 __devinitconst = { + .chip_name = "HPT371", + .chip_type = HPT371, + .udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, +@@ -507,7 +507,7 @@ static const struct hpt_info hpt371 __devinitdata = { + .timings = &hpt37x_timings + }; + +-static const struct hpt_info hpt372n __devinitdata = { ++static const struct hpt_info hpt372n __devinitconst = { + .chip_name = "HPT372N", + .chip_type = HPT372N, + .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, +@@ -515,7 +515,7 @@ static const struct hpt_info hpt372n __devinitdata = { + .timings = &hpt37x_timings + }; + +-static const struct hpt_info hpt302n __devinitdata = { ++static const struct hpt_info hpt302n __devinitconst = { + .chip_name = "HPT302N", + .chip_type = HPT302N, + .udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, +@@ -523,7 +523,7 @@ static const struct hpt_info hpt302n __devinitdata = { + .timings = &hpt37x_timings + }; + +-static const struct hpt_info hpt371n __devinitdata = { ++static const struct hpt_info hpt371n __devinitconst = { + .chip_name = "HPT371N", + .chip_type = HPT371N, + .udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, +@@ -1361,7 +1361,7 @@ static const struct ide_dma_ops hpt36x_dma_ops = { + .dma_sff_read_status = ide_dma_sff_read_status, + }; + +-static const struct ide_port_info hpt366_chipsets[] __devinitdata = { ++static const struct ide_port_info hpt366_chipsets[] __devinitconst = { + { /* 0: HPT36x */ + .name = DRV_NAME, + .init_chipset = init_chipset_hpt366, +diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c +index 8126824..55a2798 100644 +--- a/drivers/ide/ide-cd.c ++++ b/drivers/ide/ide-cd.c +@@ -768,7 +768,7 @@ static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) + alignment = queue_dma_alignment(q) | q->dma_pad_mask; + if ((unsigned long)buf & alignment + || blk_rq_bytes(rq) & q->dma_pad_mask +- || object_is_on_stack(buf)) ++ || object_starts_on_stack(buf)) + drive->dma = 0; + } + } +diff --git a/drivers/ide/ide-pci-generic.c b/drivers/ide/ide-pci-generic.c +index 7f56b73..dab5b67 100644 +--- a/drivers/ide/ide-pci-generic.c ++++ b/drivers/ide/ide-pci-generic.c +@@ -53,7 +53,7 @@ static const struct ide_port_ops netcell_port_ops = { + .udma_mask = ATA_UDMA6, \ + } + +-static const struct ide_port_info generic_chipsets[] __devinitdata = { ++static const struct ide_port_info generic_chipsets[] __devinitconst = { + /* 0: Unknown */ + DECLARE_GENERIC_PCI_DEV(0), + +diff --git a/drivers/ide/it8172.c b/drivers/ide/it8172.c +index 560e66d..d5dd180 100644 +--- a/drivers/ide/it8172.c ++++ b/drivers/ide/it8172.c +@@ -115,7 +115,7 @@ static const struct ide_port_ops it8172_port_ops = { + .set_dma_mode = it8172_set_dma_mode, + }; + +-static const struct ide_port_info it8172_port_info __devinitdata = { ++static const struct ide_port_info it8172_port_info __devinitconst = { + .name = DRV_NAME, + .port_ops = &it8172_port_ops, + .enablebits = { {0x41, 0x80, 0x80}, {0x00, 0x00, 0x00} }, +diff --git a/drivers/ide/it8213.c b/drivers/ide/it8213.c +index 46816ba..1847aeb 100644 +--- a/drivers/ide/it8213.c ++++ b/drivers/ide/it8213.c +@@ -156,7 +156,7 @@ static const struct ide_port_ops it8213_port_ops = { + .cable_detect = it8213_cable_detect, + }; + +-static const struct ide_port_info it8213_chipset __devinitdata = { ++static const struct ide_port_info it8213_chipset __devinitconst = { + .name = DRV_NAME, + .enablebits = { {0x41, 0x80, 0x80} }, + .port_ops = &it8213_port_ops, +diff --git a/drivers/ide/it821x.c b/drivers/ide/it821x.c +index 2e3169f..c5611db 100644 +--- a/drivers/ide/it821x.c ++++ b/drivers/ide/it821x.c +@@ -630,7 +630,7 @@ static const struct ide_port_ops it821x_port_ops = { + .cable_detect = it821x_cable_detect, + }; + +-static const struct ide_port_info it821x_chipset __devinitdata = { ++static const struct ide_port_info it821x_chipset __devinitconst = { + .name = DRV_NAME, + .init_chipset = init_chipset_it821x, + .init_hwif = init_hwif_it821x, +diff --git a/drivers/ide/jmicron.c b/drivers/ide/jmicron.c +index 74c2c4a..efddd7d 100644 +--- a/drivers/ide/jmicron.c ++++ b/drivers/ide/jmicron.c +@@ -102,7 +102,7 @@ static const struct ide_port_ops jmicron_port_ops = { + .cable_detect = jmicron_cable_detect, + }; + +-static const struct ide_port_info jmicron_chipset __devinitdata = { ++static const struct ide_port_info jmicron_chipset __devinitconst = { + .name = DRV_NAME, + .enablebits = { { 0x40, 0x01, 0x01 }, { 0x40, 0x10, 0x10 } }, + .port_ops = &jmicron_port_ops, +diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c +index 95327a2..73f78d8 100644 +--- a/drivers/ide/ns87415.c ++++ b/drivers/ide/ns87415.c +@@ -293,7 +293,7 @@ static const struct ide_dma_ops ns87415_dma_ops = { + .dma_sff_read_status = superio_dma_sff_read_status, + }; + +-static const struct ide_port_info ns87415_chipset __devinitdata = { ++static const struct ide_port_info ns87415_chipset __devinitconst = { + .name = DRV_NAME, + .init_hwif = init_hwif_ns87415, + .tp_ops = &ns87415_tp_ops, +diff --git a/drivers/ide/opti621.c b/drivers/ide/opti621.c +index 1a53a4c..39edc66 100644 +--- a/drivers/ide/opti621.c ++++ b/drivers/ide/opti621.c +@@ -131,7 +131,7 @@ static const struct ide_port_ops opti621_port_ops = { + .set_pio_mode = opti621_set_pio_mode, + }; + +-static const struct ide_port_info opti621_chipset __devinitdata = { ++static const struct ide_port_info opti621_chipset __devinitconst = { + .name = DRV_NAME, + .enablebits = { {0x45, 0x80, 0x00}, {0x40, 0x08, 0x00} }, + .port_ops = &opti621_port_ops, +diff --git a/drivers/ide/pdc202xx_new.c b/drivers/ide/pdc202xx_new.c +index 9546fe2..2e5ceb6 100644 +--- a/drivers/ide/pdc202xx_new.c ++++ b/drivers/ide/pdc202xx_new.c +@@ -465,7 +465,7 @@ static const struct ide_port_ops pdcnew_port_ops = { + .udma_mask = udma, \ + } + +-static const struct ide_port_info pdcnew_chipsets[] __devinitdata = { ++static const struct ide_port_info pdcnew_chipsets[] __devinitconst = { + /* 0: PDC202{68,70} */ DECLARE_PDCNEW_DEV(ATA_UDMA5), + /* 1: PDC202{69,71,75,76,77} */ DECLARE_PDCNEW_DEV(ATA_UDMA6), + }; +diff --git a/drivers/ide/pdc202xx_old.c b/drivers/ide/pdc202xx_old.c +index 3a35ec6..5634510 100644 +--- a/drivers/ide/pdc202xx_old.c ++++ b/drivers/ide/pdc202xx_old.c +@@ -270,7 +270,7 @@ static const struct ide_dma_ops pdc2026x_dma_ops = { + .max_sectors = sectors, \ + } + +-static const struct ide_port_info pdc202xx_chipsets[] __devinitdata = { ++static const struct ide_port_info pdc202xx_chipsets[] __devinitconst = { + { /* 0: PDC20246 */ + .name = DRV_NAME, + .init_chipset = init_chipset_pdc202xx, +diff --git a/drivers/ide/piix.c b/drivers/ide/piix.c +index 1892e81..fe0fd60 100644 +--- a/drivers/ide/piix.c ++++ b/drivers/ide/piix.c +@@ -344,7 +344,7 @@ static const struct ide_port_ops ich_port_ops = { + .udma_mask = udma, \ + } + +-static const struct ide_port_info piix_pci_info[] __devinitdata = { ++static const struct ide_port_info piix_pci_info[] __devinitconst = { + /* 0: MPIIX */ + { /* + * MPIIX actually has only a single IDE channel mapped to +diff --git a/drivers/ide/rz1000.c b/drivers/ide/rz1000.c +index a6414a8..c04173e 100644 +--- a/drivers/ide/rz1000.c ++++ b/drivers/ide/rz1000.c +@@ -38,7 +38,7 @@ static int __devinit rz1000_disable_readahead(struct pci_dev *dev) + } + } + +-static const struct ide_port_info rz1000_chipset __devinitdata = { ++static const struct ide_port_info rz1000_chipset __devinitconst = { + .name = DRV_NAME, + .host_flags = IDE_HFLAG_NO_DMA, + }; +diff --git a/drivers/ide/sc1200.c b/drivers/ide/sc1200.c +index 356b9b5..d4758eb 100644 +--- a/drivers/ide/sc1200.c ++++ b/drivers/ide/sc1200.c +@@ -291,7 +291,7 @@ static const struct ide_dma_ops sc1200_dma_ops = { + .dma_sff_read_status = ide_dma_sff_read_status, + }; + +-static const struct ide_port_info sc1200_chipset __devinitdata = { ++static const struct ide_port_info sc1200_chipset __devinitconst = { + .name = DRV_NAME, + .port_ops = &sc1200_port_ops, + .dma_ops = &sc1200_dma_ops, +diff --git a/drivers/ide/scc_pata.c b/drivers/ide/scc_pata.c +index b7f5b0c..9701038 100644 +--- a/drivers/ide/scc_pata.c ++++ b/drivers/ide/scc_pata.c +@@ -811,7 +811,7 @@ static const struct ide_dma_ops scc_dma_ops = { + .dma_sff_read_status = scc_dma_sff_read_status, + }; + +-static const struct ide_port_info scc_chipset __devinitdata = { ++static const struct ide_port_info scc_chipset __devinitconst = { + .name = "sccIDE", + .init_iops = init_iops_scc, + .init_dma = scc_init_dma, +diff --git a/drivers/ide/serverworks.c b/drivers/ide/serverworks.c +index 35fb8da..24d72ef 100644 +--- a/drivers/ide/serverworks.c ++++ b/drivers/ide/serverworks.c +@@ -337,7 +337,7 @@ static const struct ide_port_ops svwks_port_ops = { + .cable_detect = svwks_cable_detect, + }; + +-static const struct ide_port_info serverworks_chipsets[] __devinitdata = { ++static const struct ide_port_info serverworks_chipsets[] __devinitconst = { + { /* 0: OSB4 */ + .name = DRV_NAME, + .init_chipset = init_chipset_svwks, +diff --git a/drivers/ide/siimage.c b/drivers/ide/siimage.c +index ddeda44..46f7e30 100644 +--- a/drivers/ide/siimage.c ++++ b/drivers/ide/siimage.c +@@ -719,7 +719,7 @@ static const struct ide_dma_ops sil_dma_ops = { + .udma_mask = ATA_UDMA6, \ + } + +-static const struct ide_port_info siimage_chipsets[] __devinitdata = { ++static const struct ide_port_info siimage_chipsets[] __devinitconst = { + /* 0: SiI680 */ DECLARE_SII_DEV(&sil_pata_port_ops), + /* 1: SiI3112 */ DECLARE_SII_DEV(&sil_sata_port_ops) + }; +diff --git a/drivers/ide/sis5513.c b/drivers/ide/sis5513.c +index 4a00225..09e61b4 100644 +--- a/drivers/ide/sis5513.c ++++ b/drivers/ide/sis5513.c +@@ -563,7 +563,7 @@ static const struct ide_port_ops sis_ata133_port_ops = { + .cable_detect = sis_cable_detect, + }; + +-static const struct ide_port_info sis5513_chipset __devinitdata = { ++static const struct ide_port_info sis5513_chipset __devinitconst = { + .name = DRV_NAME, + .init_chipset = init_chipset_sis5513, + .enablebits = { {0x4a, 0x02, 0x02}, {0x4a, 0x04, 0x04} }, +diff --git a/drivers/ide/sl82c105.c b/drivers/ide/sl82c105.c +index f21dc2a..d051cd2 100644 +--- a/drivers/ide/sl82c105.c ++++ b/drivers/ide/sl82c105.c +@@ -299,7 +299,7 @@ static const struct ide_dma_ops sl82c105_dma_ops = { + .dma_sff_read_status = ide_dma_sff_read_status, + }; + +-static const struct ide_port_info sl82c105_chipset __devinitdata = { ++static const struct ide_port_info sl82c105_chipset __devinitconst = { + .name = DRV_NAME, + .init_chipset = init_chipset_sl82c105, + .enablebits = {{0x40,0x01,0x01}, {0x40,0x10,0x10}}, +diff --git a/drivers/ide/slc90e66.c b/drivers/ide/slc90e66.c +index 864ffe0..863a5e9 100644 +--- a/drivers/ide/slc90e66.c ++++ b/drivers/ide/slc90e66.c +@@ -132,7 +132,7 @@ static const struct ide_port_ops slc90e66_port_ops = { + .cable_detect = slc90e66_cable_detect, + }; + +-static const struct ide_port_info slc90e66_chipset __devinitdata = { ++static const struct ide_port_info slc90e66_chipset __devinitconst = { + .name = DRV_NAME, + .enablebits = { {0x41, 0x80, 0x80}, {0x43, 0x80, 0x80} }, + .port_ops = &slc90e66_port_ops, +diff --git a/drivers/ide/tc86c001.c b/drivers/ide/tc86c001.c +index 4799d5c..1794678 100644 +--- a/drivers/ide/tc86c001.c ++++ b/drivers/ide/tc86c001.c +@@ -192,7 +192,7 @@ static const struct ide_dma_ops tc86c001_dma_ops = { + .dma_sff_read_status = ide_dma_sff_read_status, + }; + +-static const struct ide_port_info tc86c001_chipset __devinitdata = { ++static const struct ide_port_info tc86c001_chipset __devinitconst = { + .name = DRV_NAME, + .init_hwif = init_hwif_tc86c001, + .port_ops = &tc86c001_port_ops, +diff --git a/drivers/ide/triflex.c b/drivers/ide/triflex.c +index 281c914..55ce1b8 100644 +--- a/drivers/ide/triflex.c ++++ b/drivers/ide/triflex.c +@@ -92,7 +92,7 @@ static const struct ide_port_ops triflex_port_ops = { + .set_dma_mode = triflex_set_mode, + }; + +-static const struct ide_port_info triflex_device __devinitdata = { ++static const struct ide_port_info triflex_device __devinitconst = { + .name = DRV_NAME, + .enablebits = {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}}, + .port_ops = &triflex_port_ops, +diff --git a/drivers/ide/trm290.c b/drivers/ide/trm290.c +index 4b42ca0..e494a98 100644 +--- a/drivers/ide/trm290.c ++++ b/drivers/ide/trm290.c +@@ -324,7 +324,7 @@ static struct ide_dma_ops trm290_dma_ops = { + .dma_check = trm290_dma_check, + }; + +-static const struct ide_port_info trm290_chipset __devinitdata = { ++static const struct ide_port_info trm290_chipset __devinitconst = { + .name = DRV_NAME, + .init_hwif = init_hwif_trm290, + .tp_ops = &trm290_tp_ops, +diff --git a/drivers/ide/via82cxxx.c b/drivers/ide/via82cxxx.c +index f46f49c..eb77678 100644 +--- a/drivers/ide/via82cxxx.c ++++ b/drivers/ide/via82cxxx.c +@@ -403,7 +403,7 @@ static const struct ide_port_ops via_port_ops = { + .cable_detect = via82cxxx_cable_detect, + }; + +-static const struct ide_port_info via82cxxx_chipset __devinitdata = { ++static const struct ide_port_info via82cxxx_chipset __devinitconst = { + .name = DRV_NAME, + .init_chipset = init_chipset_via82cxxx, + .enablebits = { { 0x40, 0x02, 0x02 }, { 0x40, 0x01, 0x01 } }, +diff --git a/drivers/ieee802154/fakehard.c b/drivers/ieee802154/fakehard.c +index 73d4531..c90cd2d 100644 +--- a/drivers/ieee802154/fakehard.c ++++ b/drivers/ieee802154/fakehard.c +@@ -386,7 +386,7 @@ static int __devinit ieee802154fake_probe(struct platform_device *pdev) + phy->transmit_power = 0xbf; + + dev->netdev_ops = &fake_ops; +- dev->ml_priv = &fake_mlme; ++ dev->ml_priv = (void *)&fake_mlme; + + priv = netdev_priv(dev); + priv->phy = phy; +diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c +index c889aae..6cf5aa7 100644 +--- a/drivers/infiniband/core/cm.c ++++ b/drivers/infiniband/core/cm.c +@@ -114,7 +114,7 @@ static char const counter_group_names[CM_COUNTER_GROUPS] + + struct cm_counter_group { + struct kobject obj; +- atomic_long_t counter[CM_ATTR_COUNT]; ++ atomic_long_unchecked_t counter[CM_ATTR_COUNT]; + }; + + struct cm_counter_attribute { +@@ -1394,7 +1394,7 @@ static void cm_dup_req_handler(struct cm_work *work, + struct ib_mad_send_buf *msg = NULL; + int ret; + +- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. ++ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. + counter[CM_REQ_COUNTER]); + + /* Quick state check to discard duplicate REQs. */ +@@ -1778,7 +1778,7 @@ static void cm_dup_rep_handler(struct cm_work *work) + if (!cm_id_priv) + return; + +- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. ++ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. + counter[CM_REP_COUNTER]); + ret = cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg); + if (ret) +@@ -1945,7 +1945,7 @@ static int cm_rtu_handler(struct cm_work *work) + if (cm_id_priv->id.state != IB_CM_REP_SENT && + cm_id_priv->id.state != IB_CM_MRA_REP_RCVD) { + spin_unlock_irq(&cm_id_priv->lock); +- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. ++ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. + counter[CM_RTU_COUNTER]); + goto out; + } +@@ -2128,7 +2128,7 @@ static int cm_dreq_handler(struct cm_work *work) + cm_id_priv = cm_acquire_id(dreq_msg->remote_comm_id, + dreq_msg->local_comm_id); + if (!cm_id_priv) { +- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. ++ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. + counter[CM_DREQ_COUNTER]); + cm_issue_drep(work->port, work->mad_recv_wc); + return -EINVAL; +@@ -2153,7 +2153,7 @@ static int cm_dreq_handler(struct cm_work *work) + case IB_CM_MRA_REP_RCVD: + break; + case IB_CM_TIMEWAIT: +- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. ++ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. + counter[CM_DREQ_COUNTER]); + if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg)) + goto unlock; +@@ -2167,7 +2167,7 @@ static int cm_dreq_handler(struct cm_work *work) + cm_free_msg(msg); + goto deref; + case IB_CM_DREQ_RCVD: +- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. ++ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. + counter[CM_DREQ_COUNTER]); + goto unlock; + default: +@@ -2534,7 +2534,7 @@ static int cm_mra_handler(struct cm_work *work) + ib_modify_mad(cm_id_priv->av.port->mad_agent, + cm_id_priv->msg, timeout)) { + if (cm_id_priv->id.lap_state == IB_CM_MRA_LAP_RCVD) +- atomic_long_inc(&work->port-> ++ atomic_long_inc_unchecked(&work->port-> + counter_group[CM_RECV_DUPLICATES]. + counter[CM_MRA_COUNTER]); + goto out; +@@ -2543,7 +2543,7 @@ static int cm_mra_handler(struct cm_work *work) + break; + case IB_CM_MRA_REQ_RCVD: + case IB_CM_MRA_REP_RCVD: +- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. ++ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. + counter[CM_MRA_COUNTER]); + /* fall through */ + default: +@@ -2705,7 +2705,7 @@ static int cm_lap_handler(struct cm_work *work) + case IB_CM_LAP_IDLE: + break; + case IB_CM_MRA_LAP_SENT: +- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. ++ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. + counter[CM_LAP_COUNTER]); + if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg)) + goto unlock; +@@ -2721,7 +2721,7 @@ static int cm_lap_handler(struct cm_work *work) + cm_free_msg(msg); + goto deref; + case IB_CM_LAP_RCVD: +- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. ++ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. + counter[CM_LAP_COUNTER]); + goto unlock; + default: +@@ -3005,7 +3005,7 @@ static int cm_sidr_req_handler(struct cm_work *work) + cur_cm_id_priv = cm_insert_remote_sidr(cm_id_priv); + if (cur_cm_id_priv) { + spin_unlock_irq(&cm.lock); +- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. ++ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. + counter[CM_SIDR_REQ_COUNTER]); + goto out; /* Duplicate message. */ + } +@@ -3217,10 +3217,10 @@ static void cm_send_handler(struct ib_mad_agent *mad_agent, + if (!msg->context[0] && (attr_index != CM_REJ_COUNTER)) + msg->retries = 1; + +- atomic_long_add(1 + msg->retries, ++ atomic_long_add_unchecked(1 + msg->retries, + &port->counter_group[CM_XMIT].counter[attr_index]); + if (msg->retries) +- atomic_long_add(msg->retries, ++ atomic_long_add_unchecked(msg->retries, + &port->counter_group[CM_XMIT_RETRIES]. + counter[attr_index]); + +@@ -3430,7 +3430,7 @@ static void cm_recv_handler(struct ib_mad_agent *mad_agent, + } + + attr_id = be16_to_cpu(mad_recv_wc->recv_buf.mad->mad_hdr.attr_id); +- atomic_long_inc(&port->counter_group[CM_RECV]. ++ atomic_long_inc_unchecked(&port->counter_group[CM_RECV]. + counter[attr_id - CM_ATTR_ID_OFFSET]); + + work = kmalloc(sizeof *work + sizeof(struct ib_sa_path_rec) * paths, +@@ -3635,7 +3635,7 @@ static ssize_t cm_show_counter(struct kobject *obj, struct attribute *attr, + cm_attr = container_of(attr, struct cm_counter_attribute, attr); + + return sprintf(buf, "%ld\n", +- atomic_long_read(&group->counter[cm_attr->index])); ++ atomic_long_read_unchecked(&group->counter[cm_attr->index])); + } + + static const struct sysfs_ops cm_counter_ops = { +diff --git a/drivers/infiniband/core/fmr_pool.c b/drivers/infiniband/core/fmr_pool.c +index 176c8f9..2627b62 100644 +--- a/drivers/infiniband/core/fmr_pool.c ++++ b/drivers/infiniband/core/fmr_pool.c +@@ -98,8 +98,8 @@ struct ib_fmr_pool { + + struct task_struct *thread; + +- atomic_t req_ser; +- atomic_t flush_ser; ++ atomic_unchecked_t req_ser; ++ atomic_unchecked_t flush_ser; + + wait_queue_head_t force_wait; + }; +@@ -180,10 +180,10 @@ static int ib_fmr_cleanup_thread(void *pool_ptr) + struct ib_fmr_pool *pool = pool_ptr; + + do { +- if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) < 0) { ++ if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) < 0) { + ib_fmr_batch_release(pool); + +- atomic_inc(&pool->flush_ser); ++ atomic_inc_unchecked(&pool->flush_ser); + wake_up_interruptible(&pool->force_wait); + + if (pool->flush_function) +@@ -191,7 +191,7 @@ static int ib_fmr_cleanup_thread(void *pool_ptr) + } + + set_current_state(TASK_INTERRUPTIBLE); +- if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) >= 0 && ++ if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) >= 0 && + !kthread_should_stop()) + schedule(); + __set_current_state(TASK_RUNNING); +@@ -283,8 +283,8 @@ struct ib_fmr_pool *ib_create_fmr_pool(struct ib_pd *pd, + pool->dirty_watermark = params->dirty_watermark; + pool->dirty_len = 0; + spin_lock_init(&pool->pool_lock); +- atomic_set(&pool->req_ser, 0); +- atomic_set(&pool->flush_ser, 0); ++ atomic_set_unchecked(&pool->req_ser, 0); ++ atomic_set_unchecked(&pool->flush_ser, 0); + init_waitqueue_head(&pool->force_wait); + + pool->thread = kthread_run(ib_fmr_cleanup_thread, +@@ -412,11 +412,11 @@ int ib_flush_fmr_pool(struct ib_fmr_pool *pool) + } + spin_unlock_irq(&pool->pool_lock); + +- serial = atomic_inc_return(&pool->req_ser); ++ serial = atomic_inc_return_unchecked(&pool->req_ser); + wake_up_process(pool->thread); + + if (wait_event_interruptible(pool->force_wait, +- atomic_read(&pool->flush_ser) - serial >= 0)) ++ atomic_read_unchecked(&pool->flush_ser) - serial >= 0)) + return -EINTR; + + return 0; +@@ -526,7 +526,7 @@ int ib_fmr_pool_unmap(struct ib_pool_fmr *fmr) + } else { + list_add_tail(&fmr->list, &pool->dirty_list); + if (++pool->dirty_len >= pool->dirty_watermark) { +- atomic_inc(&pool->req_ser); ++ atomic_inc_unchecked(&pool->req_ser); + wake_up_process(pool->thread); + } + } +diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c +index 40c8353..946b0e4 100644 +--- a/drivers/infiniband/hw/cxgb4/mem.c ++++ b/drivers/infiniband/hw/cxgb4/mem.c +@@ -122,7 +122,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry, + int err; + struct fw_ri_tpte tpt; + u32 stag_idx; +- static atomic_t key; ++ static atomic_unchecked_t key; + + if (c4iw_fatal_error(rdev)) + return -EIO; +@@ -135,7 +135,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry, + &rdev->resource.tpt_fifo_lock); + if (!stag_idx) + return -ENOMEM; +- *stag = (stag_idx << 8) | (atomic_inc_return(&key) & 0xff); ++ *stag = (stag_idx << 8) | (atomic_inc_return_unchecked(&key) & 0xff); + } + PDBG("%s stag_state 0x%0x type 0x%0x pdid 0x%0x, stag_idx 0x%x\n", + __func__, stag_state, type, pdid, stag_idx); +diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c +index 79b3dbc..96e5fcc 100644 +--- a/drivers/infiniband/hw/ipath/ipath_rc.c ++++ b/drivers/infiniband/hw/ipath/ipath_rc.c +@@ -1868,7 +1868,7 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr, + struct ib_atomic_eth *ateth; + struct ipath_ack_entry *e; + u64 vaddr; +- atomic64_t *maddr; ++ atomic64_unchecked_t *maddr; + u64 sdata; + u32 rkey; + u8 next; +@@ -1903,11 +1903,11 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr, + IB_ACCESS_REMOTE_ATOMIC))) + goto nack_acc_unlck; + /* Perform atomic OP and save result. */ +- maddr = (atomic64_t *) qp->r_sge.sge.vaddr; ++ maddr = (atomic64_unchecked_t *) qp->r_sge.sge.vaddr; + sdata = be64_to_cpu(ateth->swap_data); + e = &qp->s_ack_queue[qp->r_head_ack_queue]; + e->atomic_data = (opcode == OP(FETCH_ADD)) ? +- (u64) atomic64_add_return(sdata, maddr) - sdata : ++ (u64) atomic64_add_return_unchecked(sdata, maddr) - sdata : + (u64) cmpxchg((u64 *) qp->r_sge.sge.vaddr, + be64_to_cpu(ateth->compare_data), + sdata); +diff --git a/drivers/infiniband/hw/ipath/ipath_ruc.c b/drivers/infiniband/hw/ipath/ipath_ruc.c +index 1f95bba..9530f87 100644 +--- a/drivers/infiniband/hw/ipath/ipath_ruc.c ++++ b/drivers/infiniband/hw/ipath/ipath_ruc.c +@@ -266,7 +266,7 @@ static void ipath_ruc_loopback(struct ipath_qp *sqp) + unsigned long flags; + struct ib_wc wc; + u64 sdata; +- atomic64_t *maddr; ++ atomic64_unchecked_t *maddr; + enum ib_wc_status send_status; + + /* +@@ -382,11 +382,11 @@ again: + IB_ACCESS_REMOTE_ATOMIC))) + goto acc_err; + /* Perform atomic OP and save result. */ +- maddr = (atomic64_t *) qp->r_sge.sge.vaddr; ++ maddr = (atomic64_unchecked_t *) qp->r_sge.sge.vaddr; + sdata = wqe->wr.wr.atomic.compare_add; + *(u64 *) sqp->s_sge.sge.vaddr = + (wqe->wr.opcode == IB_WR_ATOMIC_FETCH_AND_ADD) ? +- (u64) atomic64_add_return(sdata, maddr) - sdata : ++ (u64) atomic64_add_return_unchecked(sdata, maddr) - sdata : + (u64) cmpxchg((u64 *) qp->r_sge.sge.vaddr, + sdata, wqe->wr.wr.atomic.swap); + goto send_comp; +diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c +index 7140199..da60063 100644 +--- a/drivers/infiniband/hw/nes/nes.c ++++ b/drivers/infiniband/hw/nes/nes.c +@@ -103,7 +103,7 @@ MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes"); + LIST_HEAD(nes_adapter_list); + static LIST_HEAD(nes_dev_list); + +-atomic_t qps_destroyed; ++atomic_unchecked_t qps_destroyed; + + static unsigned int ee_flsh_adapter; + static unsigned int sysfs_nonidx_addr; +@@ -272,7 +272,7 @@ static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_r + struct nes_qp *nesqp = cqp_request->cqp_callback_pointer; + struct nes_adapter *nesadapter = nesdev->nesadapter; + +- atomic_inc(&qps_destroyed); ++ atomic_inc_unchecked(&qps_destroyed); + + /* Free the control structures */ + +diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h +index c438e46..ca30356 100644 +--- a/drivers/infiniband/hw/nes/nes.h ++++ b/drivers/infiniband/hw/nes/nes.h +@@ -178,17 +178,17 @@ extern unsigned int nes_debug_level; + extern unsigned int wqm_quanta; + extern struct list_head nes_adapter_list; + +-extern atomic_t cm_connects; +-extern atomic_t cm_accepts; +-extern atomic_t cm_disconnects; +-extern atomic_t cm_closes; +-extern atomic_t cm_connecteds; +-extern atomic_t cm_connect_reqs; +-extern atomic_t cm_rejects; +-extern atomic_t mod_qp_timouts; +-extern atomic_t qps_created; +-extern atomic_t qps_destroyed; +-extern atomic_t sw_qps_destroyed; ++extern atomic_unchecked_t cm_connects; ++extern atomic_unchecked_t cm_accepts; ++extern atomic_unchecked_t cm_disconnects; ++extern atomic_unchecked_t cm_closes; ++extern atomic_unchecked_t cm_connecteds; ++extern atomic_unchecked_t cm_connect_reqs; ++extern atomic_unchecked_t cm_rejects; ++extern atomic_unchecked_t mod_qp_timouts; ++extern atomic_unchecked_t qps_created; ++extern atomic_unchecked_t qps_destroyed; ++extern atomic_unchecked_t sw_qps_destroyed; + extern u32 mh_detected; + extern u32 mh_pauses_sent; + extern u32 cm_packets_sent; +@@ -197,16 +197,16 @@ extern u32 cm_packets_created; + extern u32 cm_packets_received; + extern u32 cm_packets_dropped; + extern u32 cm_packets_retrans; +-extern atomic_t cm_listens_created; +-extern atomic_t cm_listens_destroyed; ++extern atomic_unchecked_t cm_listens_created; ++extern atomic_unchecked_t cm_listens_destroyed; + extern u32 cm_backlog_drops; +-extern atomic_t cm_loopbacks; +-extern atomic_t cm_nodes_created; +-extern atomic_t cm_nodes_destroyed; +-extern atomic_t cm_accel_dropped_pkts; +-extern atomic_t cm_resets_recvd; +-extern atomic_t pau_qps_created; +-extern atomic_t pau_qps_destroyed; ++extern atomic_unchecked_t cm_loopbacks; ++extern atomic_unchecked_t cm_nodes_created; ++extern atomic_unchecked_t cm_nodes_destroyed; ++extern atomic_unchecked_t cm_accel_dropped_pkts; ++extern atomic_unchecked_t cm_resets_recvd; ++extern atomic_unchecked_t pau_qps_created; ++extern atomic_unchecked_t pau_qps_destroyed; + + extern u32 int_mod_timer_init; + extern u32 int_mod_cq_depth_256; +diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c +index 71edfbb..15b62ae 100644 +--- a/drivers/infiniband/hw/nes/nes_cm.c ++++ b/drivers/infiniband/hw/nes/nes_cm.c +@@ -68,14 +68,14 @@ u32 cm_packets_dropped; + u32 cm_packets_retrans; + u32 cm_packets_created; + u32 cm_packets_received; +-atomic_t cm_listens_created; +-atomic_t cm_listens_destroyed; ++atomic_unchecked_t cm_listens_created; ++atomic_unchecked_t cm_listens_destroyed; + u32 cm_backlog_drops; +-atomic_t cm_loopbacks; +-atomic_t cm_nodes_created; +-atomic_t cm_nodes_destroyed; +-atomic_t cm_accel_dropped_pkts; +-atomic_t cm_resets_recvd; ++atomic_unchecked_t cm_loopbacks; ++atomic_unchecked_t cm_nodes_created; ++atomic_unchecked_t cm_nodes_destroyed; ++atomic_unchecked_t cm_accel_dropped_pkts; ++atomic_unchecked_t cm_resets_recvd; + + static inline int mini_cm_accelerated(struct nes_cm_core *, struct nes_cm_node *); + static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *, struct nes_vnic *, struct nes_cm_info *); +@@ -148,13 +148,13 @@ static struct nes_cm_ops nes_cm_api = { + + static struct nes_cm_core *g_cm_core; + +-atomic_t cm_connects; +-atomic_t cm_accepts; +-atomic_t cm_disconnects; +-atomic_t cm_closes; +-atomic_t cm_connecteds; +-atomic_t cm_connect_reqs; +-atomic_t cm_rejects; ++atomic_unchecked_t cm_connects; ++atomic_unchecked_t cm_accepts; ++atomic_unchecked_t cm_disconnects; ++atomic_unchecked_t cm_closes; ++atomic_unchecked_t cm_connecteds; ++atomic_unchecked_t cm_connect_reqs; ++atomic_unchecked_t cm_rejects; + + int nes_add_ref_cm_node(struct nes_cm_node *cm_node) + { +@@ -1279,7 +1279,7 @@ static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core, + kfree(listener); + listener = NULL; + ret = 0; +- atomic_inc(&cm_listens_destroyed); ++ atomic_inc_unchecked(&cm_listens_destroyed); + } else { + spin_unlock_irqrestore(&cm_core->listen_list_lock, flags); + } +@@ -1482,7 +1482,7 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core, + cm_node->rem_mac); + + add_hte_node(cm_core, cm_node); +- atomic_inc(&cm_nodes_created); ++ atomic_inc_unchecked(&cm_nodes_created); + + return cm_node; + } +@@ -1540,7 +1540,7 @@ static int rem_ref_cm_node(struct nes_cm_core *cm_core, + } + + atomic_dec(&cm_core->node_cnt); +- atomic_inc(&cm_nodes_destroyed); ++ atomic_inc_unchecked(&cm_nodes_destroyed); + nesqp = cm_node->nesqp; + if (nesqp) { + nesqp->cm_node = NULL; +@@ -1604,7 +1604,7 @@ static int process_options(struct nes_cm_node *cm_node, u8 *optionsloc, + + static void drop_packet(struct sk_buff *skb) + { +- atomic_inc(&cm_accel_dropped_pkts); ++ atomic_inc_unchecked(&cm_accel_dropped_pkts); + dev_kfree_skb_any(skb); + } + +@@ -1667,7 +1667,7 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, + { + + int reset = 0; /* whether to send reset in case of err.. */ +- atomic_inc(&cm_resets_recvd); ++ atomic_inc_unchecked(&cm_resets_recvd); + nes_debug(NES_DBG_CM, "Received Reset, cm_node = %p, state = %u." + " refcnt=%d\n", cm_node, cm_node->state, + atomic_read(&cm_node->ref_count)); +@@ -2308,7 +2308,7 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core, + rem_ref_cm_node(cm_node->cm_core, cm_node); + return NULL; + } +- atomic_inc(&cm_loopbacks); ++ atomic_inc_unchecked(&cm_loopbacks); + loopbackremotenode->loopbackpartner = cm_node; + loopbackremotenode->tcp_cntxt.rcv_wscale = + NES_CM_DEFAULT_RCV_WND_SCALE; +@@ -2583,7 +2583,7 @@ static int mini_cm_recv_pkt(struct nes_cm_core *cm_core, + nes_queue_mgt_skbs(skb, nesvnic, cm_node->nesqp); + else { + rem_ref_cm_node(cm_core, cm_node); +- atomic_inc(&cm_accel_dropped_pkts); ++ atomic_inc_unchecked(&cm_accel_dropped_pkts); + dev_kfree_skb_any(skb); + } + break; +@@ -2890,7 +2890,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp) + + if ((cm_id) && (cm_id->event_handler)) { + if (issue_disconn) { +- atomic_inc(&cm_disconnects); ++ atomic_inc_unchecked(&cm_disconnects); + cm_event.event = IW_CM_EVENT_DISCONNECT; + cm_event.status = disconn_status; + cm_event.local_addr = cm_id->local_addr; +@@ -2912,7 +2912,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp) + } + + if (issue_close) { +- atomic_inc(&cm_closes); ++ atomic_inc_unchecked(&cm_closes); + nes_disconnect(nesqp, 1); + + cm_id->provider_data = nesqp; +@@ -3048,7 +3048,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) + + nes_debug(NES_DBG_CM, "QP%u, cm_node=%p, jiffies = %lu listener = %p\n", + nesqp->hwqp.qp_id, cm_node, jiffies, cm_node->listener); +- atomic_inc(&cm_accepts); ++ atomic_inc_unchecked(&cm_accepts); + + nes_debug(NES_DBG_CM, "netdev refcnt = %u.\n", + netdev_refcnt_read(nesvnic->netdev)); +@@ -3250,7 +3250,7 @@ int nes_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len) + struct nes_cm_core *cm_core; + u8 *start_buff; + +- atomic_inc(&cm_rejects); ++ atomic_inc_unchecked(&cm_rejects); + cm_node = (struct nes_cm_node *)cm_id->provider_data; + loopback = cm_node->loopbackpartner; + cm_core = cm_node->cm_core; +@@ -3310,7 +3310,7 @@ int nes_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) + ntohl(cm_id->local_addr.sin_addr.s_addr), + ntohs(cm_id->local_addr.sin_port)); + +- atomic_inc(&cm_connects); ++ atomic_inc_unchecked(&cm_connects); + nesqp->active_conn = 1; + + /* cache the cm_id in the qp */ +@@ -3416,7 +3416,7 @@ int nes_create_listen(struct iw_cm_id *cm_id, int backlog) + g_cm_core->api->stop_listener(g_cm_core, (void *)cm_node); + return err; + } +- atomic_inc(&cm_listens_created); ++ atomic_inc_unchecked(&cm_listens_created); + } + + cm_id->add_ref(cm_id); +@@ -3517,7 +3517,7 @@ static void cm_event_connected(struct nes_cm_event *event) + + if (nesqp->destroyed) + return; +- atomic_inc(&cm_connecteds); ++ atomic_inc_unchecked(&cm_connecteds); + nes_debug(NES_DBG_CM, "QP%u attempting to connect to 0x%08X:0x%04X on" + " local port 0x%04X. jiffies = %lu.\n", + nesqp->hwqp.qp_id, +@@ -3704,7 +3704,7 @@ static void cm_event_reset(struct nes_cm_event *event) + + cm_id->add_ref(cm_id); + ret = cm_id->event_handler(cm_id, &cm_event); +- atomic_inc(&cm_closes); ++ atomic_inc_unchecked(&cm_closes); + cm_event.event = IW_CM_EVENT_CLOSE; + cm_event.status = 0; + cm_event.provider_data = cm_id->provider_data; +@@ -3740,7 +3740,7 @@ static void cm_event_mpa_req(struct nes_cm_event *event) + return; + cm_id = cm_node->cm_id; + +- atomic_inc(&cm_connect_reqs); ++ atomic_inc_unchecked(&cm_connect_reqs); + nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n", + cm_node, cm_id, jiffies); + +@@ -3780,7 +3780,7 @@ static void cm_event_mpa_reject(struct nes_cm_event *event) + return; + cm_id = cm_node->cm_id; + +- atomic_inc(&cm_connect_reqs); ++ atomic_inc_unchecked(&cm_connect_reqs); + nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n", + cm_node, cm_id, jiffies); + +diff --git a/drivers/infiniband/hw/nes/nes_mgt.c b/drivers/infiniband/hw/nes/nes_mgt.c +index 3ba7be3..c81f6ff 100644 +--- a/drivers/infiniband/hw/nes/nes_mgt.c ++++ b/drivers/infiniband/hw/nes/nes_mgt.c +@@ -40,8 +40,8 @@ + #include "nes.h" + #include "nes_mgt.h" + +-atomic_t pau_qps_created; +-atomic_t pau_qps_destroyed; ++atomic_unchecked_t pau_qps_created; ++atomic_unchecked_t pau_qps_destroyed; + + static void nes_replenish_mgt_rq(struct nes_vnic_mgt *mgtvnic) + { +@@ -621,7 +621,7 @@ void nes_destroy_pau_qp(struct nes_device *nesdev, struct nes_qp *nesqp) + { + struct sk_buff *skb; + unsigned long flags; +- atomic_inc(&pau_qps_destroyed); ++ atomic_inc_unchecked(&pau_qps_destroyed); + + /* Free packets that have not yet been forwarded */ + /* Lock is acquired by skb_dequeue when removing the skb */ +@@ -812,7 +812,7 @@ static void nes_mgt_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq * + cq->cq_vbase[head].cqe_words[NES_NIC_CQE_HASH_RCVNXT]); + skb_queue_head_init(&nesqp->pau_list); + spin_lock_init(&nesqp->pau_lock); +- atomic_inc(&pau_qps_created); ++ atomic_inc_unchecked(&pau_qps_created); + nes_change_quad_hash(nesdev, mgtvnic->nesvnic, nesqp); + } + +diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c +index f3a3ecf..57d311d 100644 +--- a/drivers/infiniband/hw/nes/nes_nic.c ++++ b/drivers/infiniband/hw/nes/nes_nic.c +@@ -1277,39 +1277,39 @@ static void nes_netdev_get_ethtool_stats(struct net_device *netdev, + target_stat_values[++index] = mh_detected; + target_stat_values[++index] = mh_pauses_sent; + target_stat_values[++index] = nesvnic->endnode_ipv4_tcp_retransmits; +- target_stat_values[++index] = atomic_read(&cm_connects); +- target_stat_values[++index] = atomic_read(&cm_accepts); +- target_stat_values[++index] = atomic_read(&cm_disconnects); +- target_stat_values[++index] = atomic_read(&cm_connecteds); +- target_stat_values[++index] = atomic_read(&cm_connect_reqs); +- target_stat_values[++index] = atomic_read(&cm_rejects); +- target_stat_values[++index] = atomic_read(&mod_qp_timouts); +- target_stat_values[++index] = atomic_read(&qps_created); +- target_stat_values[++index] = atomic_read(&sw_qps_destroyed); +- target_stat_values[++index] = atomic_read(&qps_destroyed); +- target_stat_values[++index] = atomic_read(&cm_closes); ++ target_stat_values[++index] = atomic_read_unchecked(&cm_connects); ++ target_stat_values[++index] = atomic_read_unchecked(&cm_accepts); ++ target_stat_values[++index] = atomic_read_unchecked(&cm_disconnects); ++ target_stat_values[++index] = atomic_read_unchecked(&cm_connecteds); ++ target_stat_values[++index] = atomic_read_unchecked(&cm_connect_reqs); ++ target_stat_values[++index] = atomic_read_unchecked(&cm_rejects); ++ target_stat_values[++index] = atomic_read_unchecked(&mod_qp_timouts); ++ target_stat_values[++index] = atomic_read_unchecked(&qps_created); ++ target_stat_values[++index] = atomic_read_unchecked(&sw_qps_destroyed); ++ target_stat_values[++index] = atomic_read_unchecked(&qps_destroyed); ++ target_stat_values[++index] = atomic_read_unchecked(&cm_closes); + target_stat_values[++index] = cm_packets_sent; + target_stat_values[++index] = cm_packets_bounced; + target_stat_values[++index] = cm_packets_created; + target_stat_values[++index] = cm_packets_received; + target_stat_values[++index] = cm_packets_dropped; + target_stat_values[++index] = cm_packets_retrans; +- target_stat_values[++index] = atomic_read(&cm_listens_created); +- target_stat_values[++index] = atomic_read(&cm_listens_destroyed); ++ target_stat_values[++index] = atomic_read_unchecked(&cm_listens_created); ++ target_stat_values[++index] = atomic_read_unchecked(&cm_listens_destroyed); + target_stat_values[++index] = cm_backlog_drops; +- target_stat_values[++index] = atomic_read(&cm_loopbacks); +- target_stat_values[++index] = atomic_read(&cm_nodes_created); +- target_stat_values[++index] = atomic_read(&cm_nodes_destroyed); +- target_stat_values[++index] = atomic_read(&cm_accel_dropped_pkts); +- target_stat_values[++index] = atomic_read(&cm_resets_recvd); ++ target_stat_values[++index] = atomic_read_unchecked(&cm_loopbacks); ++ target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_created); ++ target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_destroyed); ++ target_stat_values[++index] = atomic_read_unchecked(&cm_accel_dropped_pkts); ++ target_stat_values[++index] = atomic_read_unchecked(&cm_resets_recvd); + target_stat_values[++index] = nesadapter->free_4kpbl; + target_stat_values[++index] = nesadapter->free_256pbl; + target_stat_values[++index] = int_mod_timer_init; + target_stat_values[++index] = nesvnic->lro_mgr.stats.aggregated; + target_stat_values[++index] = nesvnic->lro_mgr.stats.flushed; + target_stat_values[++index] = nesvnic->lro_mgr.stats.no_desc; +- target_stat_values[++index] = atomic_read(&pau_qps_created); +- target_stat_values[++index] = atomic_read(&pau_qps_destroyed); ++ target_stat_values[++index] = atomic_read_unchecked(&pau_qps_created); ++ target_stat_values[++index] = atomic_read_unchecked(&pau_qps_destroyed); + } + + /** +diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c +index 8b8812d..a5e1133 100644 +--- a/drivers/infiniband/hw/nes/nes_verbs.c ++++ b/drivers/infiniband/hw/nes/nes_verbs.c +@@ -46,9 +46,9 @@ + + #include <rdma/ib_umem.h> + +-atomic_t mod_qp_timouts; +-atomic_t qps_created; +-atomic_t sw_qps_destroyed; ++atomic_unchecked_t mod_qp_timouts; ++atomic_unchecked_t qps_created; ++atomic_unchecked_t sw_qps_destroyed; + + static void nes_unregister_ofa_device(struct nes_ib_device *nesibdev); + +@@ -1131,7 +1131,7 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd, + if (init_attr->create_flags) + return ERR_PTR(-EINVAL); + +- atomic_inc(&qps_created); ++ atomic_inc_unchecked(&qps_created); + switch (init_attr->qp_type) { + case IB_QPT_RC: + if (nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) { +@@ -1460,7 +1460,7 @@ static int nes_destroy_qp(struct ib_qp *ibqp) + struct iw_cm_event cm_event; + int ret = 0; + +- atomic_inc(&sw_qps_destroyed); ++ atomic_inc_unchecked(&sw_qps_destroyed); + nesqp->destroyed = 1; + + /* Blow away the connection if it exists. */ +diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h +index 6b811e3..f8acf88 100644 +--- a/drivers/infiniband/hw/qib/qib.h ++++ b/drivers/infiniband/hw/qib/qib.h +@@ -51,6 +51,7 @@ + #include <linux/completion.h> + #include <linux/kref.h> + #include <linux/sched.h> ++#include <linux/slab.h> + + #include "qib_common.h" + #include "qib_verbs.h" +diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c +index da739d9..da1c7f4 100644 +--- a/drivers/input/gameport/gameport.c ++++ b/drivers/input/gameport/gameport.c +@@ -487,14 +487,14 @@ EXPORT_SYMBOL(gameport_set_phys); + */ + static void gameport_init_port(struct gameport *gameport) + { +- static atomic_t gameport_no = ATOMIC_INIT(0); ++ static atomic_unchecked_t gameport_no = ATOMIC_INIT(0); + + __module_get(THIS_MODULE); + + mutex_init(&gameport->drv_mutex); + device_initialize(&gameport->dev); + dev_set_name(&gameport->dev, "gameport%lu", +- (unsigned long)atomic_inc_return(&gameport_no) - 1); ++ (unsigned long)atomic_inc_return_unchecked(&gameport_no) - 1); + gameport->dev.bus = &gameport_bus; + gameport->dev.release = gameport_release_port; + if (gameport->parent) +diff --git a/drivers/input/input.c b/drivers/input/input.c +index 8921c61..f5cd63d 100644 +--- a/drivers/input/input.c ++++ b/drivers/input/input.c +@@ -1814,7 +1814,7 @@ static void input_cleanse_bitmasks(struct input_dev *dev) + */ + int input_register_device(struct input_dev *dev) + { +- static atomic_t input_no = ATOMIC_INIT(0); ++ static atomic_unchecked_t input_no = ATOMIC_INIT(0); + struct input_handler *handler; + const char *path; + int error; +@@ -1851,7 +1851,7 @@ int input_register_device(struct input_dev *dev) + dev->setkeycode = input_default_setkeycode; + + dev_set_name(&dev->dev, "input%ld", +- (unsigned long) atomic_inc_return(&input_no) - 1); ++ (unsigned long) atomic_inc_return_unchecked(&input_no) - 1); + + error = device_add(&dev->dev); + if (error) +diff --git a/drivers/input/joystick/sidewinder.c b/drivers/input/joystick/sidewinder.c +index b8d8611..7a4a04b 100644 +--- a/drivers/input/joystick/sidewinder.c ++++ b/drivers/input/joystick/sidewinder.c +@@ -30,6 +30,7 @@ + #include <linux/kernel.h> + #include <linux/module.h> + #include <linux/slab.h> ++#include <linux/sched.h> + #include <linux/init.h> + #include <linux/input.h> + #include <linux/gameport.h> +diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c +index 42f7b25..09fcf46 100644 +--- a/drivers/input/joystick/xpad.c ++++ b/drivers/input/joystick/xpad.c +@@ -714,7 +714,7 @@ static void xpad_led_set(struct led_classdev *led_cdev, + + static int xpad_led_probe(struct usb_xpad *xpad) + { +- static atomic_t led_seq = ATOMIC_INIT(0); ++ static atomic_unchecked_t led_seq = ATOMIC_INIT(0); + long led_no; + struct xpad_led *led; + struct led_classdev *led_cdev; +@@ -727,7 +727,7 @@ static int xpad_led_probe(struct usb_xpad *xpad) + if (!led) + return -ENOMEM; + +- led_no = (long)atomic_inc_return(&led_seq) - 1; ++ led_no = (long)atomic_inc_return_unchecked(&led_seq) - 1; + + snprintf(led->name, sizeof(led->name), "xpad%ld", led_no); + led->xpad = xpad; +diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c +index 0110b5a..d3ad144 100644 +--- a/drivers/input/mousedev.c ++++ b/drivers/input/mousedev.c +@@ -763,7 +763,7 @@ static ssize_t mousedev_read(struct file *file, char __user *buffer, + + spin_unlock_irq(&client->packet_lock); + +- if (copy_to_user(buffer, data, count)) ++ if (count > sizeof(data) || copy_to_user(buffer, data, count)) + return -EFAULT; + + return count; +diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c +index d0f7533..fb8215b 100644 +--- a/drivers/input/serio/serio.c ++++ b/drivers/input/serio/serio.c +@@ -496,7 +496,7 @@ static void serio_release_port(struct device *dev) + */ + static void serio_init_port(struct serio *serio) + { +- static atomic_t serio_no = ATOMIC_INIT(0); ++ static atomic_unchecked_t serio_no = ATOMIC_INIT(0); + + __module_get(THIS_MODULE); + +@@ -507,7 +507,7 @@ static void serio_init_port(struct serio *serio) + mutex_init(&serio->drv_mutex); + device_initialize(&serio->dev); + dev_set_name(&serio->dev, "serio%ld", +- (long)atomic_inc_return(&serio_no) - 1); ++ (long)atomic_inc_return_unchecked(&serio_no) - 1); + serio->dev.bus = &serio_bus; + serio->dev.release = serio_release_port; + serio->dev.groups = serio_device_attr_groups; +diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c +index b902794..fc7b85b 100644 +--- a/drivers/isdn/capi/capi.c ++++ b/drivers/isdn/capi/capi.c +@@ -83,8 +83,8 @@ struct capiminor { + + struct capi20_appl *ap; + u32 ncci; +- atomic_t datahandle; +- atomic_t msgid; ++ atomic_unchecked_t datahandle; ++ atomic_unchecked_t msgid; + + struct tty_port port; + int ttyinstop; +@@ -397,7 +397,7 @@ gen_data_b3_resp_for(struct capiminor *mp, struct sk_buff *skb) + capimsg_setu16(s, 2, mp->ap->applid); + capimsg_setu8 (s, 4, CAPI_DATA_B3); + capimsg_setu8 (s, 5, CAPI_RESP); +- capimsg_setu16(s, 6, atomic_inc_return(&mp->msgid)); ++ capimsg_setu16(s, 6, atomic_inc_return_unchecked(&mp->msgid)); + capimsg_setu32(s, 8, mp->ncci); + capimsg_setu16(s, 12, datahandle); + } +@@ -518,14 +518,14 @@ static void handle_minor_send(struct capiminor *mp) + mp->outbytes -= len; + spin_unlock_bh(&mp->outlock); + +- datahandle = atomic_inc_return(&mp->datahandle); ++ datahandle = atomic_inc_return_unchecked(&mp->datahandle); + skb_push(skb, CAPI_DATA_B3_REQ_LEN); + memset(skb->data, 0, CAPI_DATA_B3_REQ_LEN); + capimsg_setu16(skb->data, 0, CAPI_DATA_B3_REQ_LEN); + capimsg_setu16(skb->data, 2, mp->ap->applid); + capimsg_setu8 (skb->data, 4, CAPI_DATA_B3); + capimsg_setu8 (skb->data, 5, CAPI_REQ); +- capimsg_setu16(skb->data, 6, atomic_inc_return(&mp->msgid)); ++ capimsg_setu16(skb->data, 6, atomic_inc_return_unchecked(&mp->msgid)); + capimsg_setu32(skb->data, 8, mp->ncci); /* NCCI */ + capimsg_setu32(skb->data, 12, (u32)(long)skb->data);/* Data32 */ + capimsg_setu16(skb->data, 16, len); /* Data length */ +diff --git a/drivers/isdn/hardware/avm/b1.c b/drivers/isdn/hardware/avm/b1.c +index 821f7ac..28d4030 100644 +--- a/drivers/isdn/hardware/avm/b1.c ++++ b/drivers/isdn/hardware/avm/b1.c +@@ -176,7 +176,7 @@ int b1_load_t4file(avmcard *card, capiloaddatapart *t4file) + } + if (left) { + if (t4file->user) { +- if (copy_from_user(buf, dp, left)) ++ if (left > sizeof buf || copy_from_user(buf, dp, left)) + return -EFAULT; + } else { + memcpy(buf, dp, left); +@@ -224,7 +224,7 @@ int b1_load_config(avmcard *card, capiloaddatapart *config) + } + if (left) { + if (config->user) { +- if (copy_from_user(buf, dp, left)) ++ if (left > sizeof buf || copy_from_user(buf, dp, left)) + return -EFAULT; + } else { + memcpy(buf, dp, left); +diff --git a/drivers/isdn/hardware/eicon/divasync.h b/drivers/isdn/hardware/eicon/divasync.h +index dd6b53a..19d9ee6 100644 +--- a/drivers/isdn/hardware/eicon/divasync.h ++++ b/drivers/isdn/hardware/eicon/divasync.h +@@ -146,7 +146,7 @@ typedef struct _diva_didd_add_adapter { + } diva_didd_add_adapter_t; + typedef struct _diva_didd_remove_adapter { + IDI_CALL p_request; +-} diva_didd_remove_adapter_t; ++} __no_const diva_didd_remove_adapter_t; + typedef struct _diva_didd_read_adapter_array { + void *buffer; + dword length; +diff --git a/drivers/isdn/hardware/eicon/xdi_adapter.h b/drivers/isdn/hardware/eicon/xdi_adapter.h +index d303e65..28bcb7b 100644 +--- a/drivers/isdn/hardware/eicon/xdi_adapter.h ++++ b/drivers/isdn/hardware/eicon/xdi_adapter.h +@@ -44,7 +44,7 @@ typedef struct _xdi_mbox_t { + typedef struct _diva_os_idi_adapter_interface { + diva_init_card_proc_t cleanup_adapter_proc; + diva_cmd_card_proc_t cmd_proc; +-} diva_os_idi_adapter_interface_t; ++} __no_const diva_os_idi_adapter_interface_t; + + typedef struct _diva_os_xdi_adapter { + struct list_head link; +diff --git a/drivers/isdn/icn/icn.c b/drivers/isdn/icn/icn.c +index e74df7c..03a03ba 100644 +--- a/drivers/isdn/icn/icn.c ++++ b/drivers/isdn/icn/icn.c +@@ -1045,7 +1045,7 @@ icn_writecmd(const u_char *buf, int len, int user, icn_card *card) + if (count > len) + count = len; + if (user) { +- if (copy_from_user(msg, buf, count)) ++ if (count > sizeof msg || copy_from_user(msg, buf, count)) + return -EFAULT; + } else + memcpy(msg, buf, count); +diff --git a/drivers/leds/leds-mc13783.c b/drivers/leds/leds-mc13783.c +index 8bc4915..4cc6a2e 100644 +--- a/drivers/leds/leds-mc13783.c ++++ b/drivers/leds/leds-mc13783.c +@@ -280,7 +280,7 @@ static int __devinit mc13783_led_probe(struct platform_device *pdev) + return -EINVAL; + } + +- led = kzalloc(sizeof(*led) * pdata->num_leds, GFP_KERNEL); ++ led = kcalloc(pdata->num_leds, sizeof(*led), GFP_KERNEL); + if (led == NULL) { + dev_err(&pdev->dev, "failed to alloc memory\n"); + return -ENOMEM; +diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c +index b5fdcb7..5b6c59f 100644 +--- a/drivers/lguest/core.c ++++ b/drivers/lguest/core.c +@@ -92,9 +92,17 @@ static __init int map_switcher(void) + * it's worked so far. The end address needs +1 because __get_vm_area + * allocates an extra guard page, so we need space for that. + */ ++ ++#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) ++ switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE, ++ VM_ALLOC | VM_KERNEXEC, SWITCHER_ADDR, SWITCHER_ADDR ++ + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE); ++#else + switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE, + VM_ALLOC, SWITCHER_ADDR, SWITCHER_ADDR + + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE); ++#endif ++ + if (!switcher_vma) { + err = -ENOMEM; + printk("lguest: could not map switcher pages high\n"); +@@ -119,7 +127,7 @@ static __init int map_switcher(void) + * Now the Switcher is mapped at the right address, we can't fail! + * Copy in the compiled-in Switcher code (from x86/switcher_32.S). + */ +- memcpy(switcher_vma->addr, start_switcher_text, ++ memcpy(switcher_vma->addr, ktla_ktva(start_switcher_text), + end_switcher_text - start_switcher_text); + + printk(KERN_INFO "lguest: mapped switcher at %p\n", +diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c +index 39809035..ce25c5e 100644 +--- a/drivers/lguest/x86/core.c ++++ b/drivers/lguest/x86/core.c +@@ -59,7 +59,7 @@ static struct { + /* Offset from where switcher.S was compiled to where we've copied it */ + static unsigned long switcher_offset(void) + { +- return SWITCHER_ADDR - (unsigned long)start_switcher_text; ++ return SWITCHER_ADDR - (unsigned long)ktla_ktva(start_switcher_text); + } + + /* This cpu's struct lguest_pages. */ +@@ -100,7 +100,13 @@ static void copy_in_guest_info(struct lg_cpu *cpu, struct lguest_pages *pages) + * These copies are pretty cheap, so we do them unconditionally: */ + /* Save the current Host top-level page directory. + */ ++ ++#ifdef CONFIG_PAX_PER_CPU_PGD ++ pages->state.host_cr3 = read_cr3(); ++#else + pages->state.host_cr3 = __pa(current->mm->pgd); ++#endif ++ + /* + * Set up the Guest's page tables to see this CPU's pages (and no + * other CPU's pages). +@@ -472,7 +478,7 @@ void __init lguest_arch_host_init(void) + * compiled-in switcher code and the high-mapped copy we just made. + */ + for (i = 0; i < IDT_ENTRIES; i++) +- default_idt_entries[i] += switcher_offset(); ++ default_idt_entries[i] = ktla_ktva(default_idt_entries[i]) + switcher_offset(); + + /* + * Set up the Switcher's per-cpu areas. +@@ -555,7 +561,7 @@ void __init lguest_arch_host_init(void) + * it will be undisturbed when we switch. To change %cs and jump we + * need this structure to feed to Intel's "lcall" instruction. + */ +- lguest_entry.offset = (long)switch_to_guest + switcher_offset(); ++ lguest_entry.offset = (long)ktla_ktva(switch_to_guest) + switcher_offset(); + lguest_entry.segment = LGUEST_CS; + + /* +diff --git a/drivers/lguest/x86/switcher_32.S b/drivers/lguest/x86/switcher_32.S +index 40634b0..4f5855e 100644 +--- a/drivers/lguest/x86/switcher_32.S ++++ b/drivers/lguest/x86/switcher_32.S +@@ -87,6 +87,7 @@ + #include <asm/page.h> + #include <asm/segment.h> + #include <asm/lguest.h> ++#include <asm/processor-flags.h> + + // We mark the start of the code to copy + // It's placed in .text tho it's never run here +@@ -149,6 +150,13 @@ ENTRY(switch_to_guest) + // Changes type when we load it: damn Intel! + // For after we switch over our page tables + // That entry will be read-only: we'd crash. ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ mov %cr0, %edx ++ xor $X86_CR0_WP, %edx ++ mov %edx, %cr0 ++#endif ++ + movl $(GDT_ENTRY_TSS*8), %edx + ltr %dx + +@@ -157,9 +165,15 @@ ENTRY(switch_to_guest) + // Let's clear it again for our return. + // The GDT descriptor of the Host + // Points to the table after two "size" bytes +- movl (LGUEST_PAGES_host_gdt_desc+2)(%eax), %edx ++ movl (LGUEST_PAGES_host_gdt_desc+2)(%eax), %eax + // Clear "used" from type field (byte 5, bit 2) +- andb $0xFD, (GDT_ENTRY_TSS*8 + 5)(%edx) ++ andb $0xFD, (GDT_ENTRY_TSS*8 + 5)(%eax) ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ mov %cr0, %eax ++ xor $X86_CR0_WP, %eax ++ mov %eax, %cr0 ++#endif + + // Once our page table's switched, the Guest is live! + // The Host fades as we run this final step. +@@ -295,13 +309,12 @@ deliver_to_host: + // I consulted gcc, and it gave + // These instructions, which I gladly credit: + leal (%edx,%ebx,8), %eax +- movzwl (%eax),%edx +- movl 4(%eax), %eax +- xorw %ax, %ax +- orl %eax, %edx ++ movl 4(%eax), %edx ++ movw (%eax), %dx + // Now the address of the handler's in %edx + // We call it now: its "iret" drops us home. +- jmp *%edx ++ ljmp $__KERNEL_CS, $1f ++1: jmp *%edx + + // Every interrupt can come to us here + // But we must truly tell each apart. +diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c +index 20e5c2c..9e849a9 100644 +--- a/drivers/macintosh/macio_asic.c ++++ b/drivers/macintosh/macio_asic.c +@@ -748,7 +748,7 @@ static void __devexit macio_pci_remove(struct pci_dev* pdev) + * MacIO is matched against any Apple ID, it's probe() function + * will then decide wether it applies or not + */ +-static const struct pci_device_id __devinitdata pci_ids [] = { { ++static const struct pci_device_id __devinitconst pci_ids [] = { { + .vendor = PCI_VENDOR_ID_APPLE, + .device = PCI_ANY_ID, + .subvendor = PCI_ANY_ID, +diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c +index 17e2b47..bcbeec4 100644 +--- a/drivers/md/bitmap.c ++++ b/drivers/md/bitmap.c +@@ -1823,7 +1823,7 @@ void bitmap_status(struct seq_file *seq, struct bitmap *bitmap) + chunk_kb ? "KB" : "B"); + if (bitmap->file) { + seq_printf(seq, ", file: "); +- seq_path(seq, &bitmap->file->f_path, " \t\n"); ++ seq_path(seq, &bitmap->file->f_path, " \t\n\\"); + } + + seq_printf(seq, "\n"); +diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c +index a1a3e6d..1918bfc 100644 +--- a/drivers/md/dm-ioctl.c ++++ b/drivers/md/dm-ioctl.c +@@ -1590,7 +1590,7 @@ static int validate_params(uint cmd, struct dm_ioctl *param) + cmd == DM_LIST_VERSIONS_CMD) + return 0; + +- if ((cmd == DM_DEV_CREATE_CMD)) { ++ if (cmd == DM_DEV_CREATE_CMD) { + if (!*param->name) { + DMWARN("name not supplied when creating device"); + return -EINVAL; +diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c +index d039de8..0cf5b87 100644 +--- a/drivers/md/dm-raid1.c ++++ b/drivers/md/dm-raid1.c +@@ -40,7 +40,7 @@ enum dm_raid1_error { + + struct mirror { + struct mirror_set *ms; +- atomic_t error_count; ++ atomic_unchecked_t error_count; + unsigned long error_type; + struct dm_dev *dev; + sector_t offset; +@@ -185,7 +185,7 @@ static struct mirror *get_valid_mirror(struct mirror_set *ms) + struct mirror *m; + + for (m = ms->mirror; m < ms->mirror + ms->nr_mirrors; m++) +- if (!atomic_read(&m->error_count)) ++ if (!atomic_read_unchecked(&m->error_count)) + return m; + + return NULL; +@@ -217,7 +217,7 @@ static void fail_mirror(struct mirror *m, enum dm_raid1_error error_type) + * simple way to tell if a device has encountered + * errors. + */ +- atomic_inc(&m->error_count); ++ atomic_inc_unchecked(&m->error_count); + + if (test_and_set_bit(error_type, &m->error_type)) + return; +@@ -408,7 +408,7 @@ static struct mirror *choose_mirror(struct mirror_set *ms, sector_t sector) + struct mirror *m = get_default_mirror(ms); + + do { +- if (likely(!atomic_read(&m->error_count))) ++ if (likely(!atomic_read_unchecked(&m->error_count))) + return m; + + if (m-- == ms->mirror) +@@ -422,7 +422,7 @@ static int default_ok(struct mirror *m) + { + struct mirror *default_mirror = get_default_mirror(m->ms); + +- return !atomic_read(&default_mirror->error_count); ++ return !atomic_read_unchecked(&default_mirror->error_count); + } + + static int mirror_available(struct mirror_set *ms, struct bio *bio) +@@ -559,7 +559,7 @@ static void do_reads(struct mirror_set *ms, struct bio_list *reads) + */ + if (likely(region_in_sync(ms, region, 1))) + m = choose_mirror(ms, bio->bi_sector); +- else if (m && atomic_read(&m->error_count)) ++ else if (m && atomic_read_unchecked(&m->error_count)) + m = NULL; + + if (likely(m)) +@@ -938,7 +938,7 @@ static int get_mirror(struct mirror_set *ms, struct dm_target *ti, + } + + ms->mirror[mirror].ms = ms; +- atomic_set(&(ms->mirror[mirror].error_count), 0); ++ atomic_set_unchecked(&(ms->mirror[mirror].error_count), 0); + ms->mirror[mirror].error_type = 0; + ms->mirror[mirror].offset = offset; + +@@ -1351,7 +1351,7 @@ static void mirror_resume(struct dm_target *ti) + */ + static char device_status_char(struct mirror *m) + { +- if (!atomic_read(&(m->error_count))) ++ if (!atomic_read_unchecked(&(m->error_count))) + return 'A'; + + return (test_bit(DM_RAID1_FLUSH_ERROR, &(m->error_type))) ? 'F' : +diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c +index 35c94ff..20d4c17 100644 +--- a/drivers/md/dm-stripe.c ++++ b/drivers/md/dm-stripe.c +@@ -20,7 +20,7 @@ struct stripe { + struct dm_dev *dev; + sector_t physical_start; + +- atomic_t error_count; ++ atomic_unchecked_t error_count; + }; + + struct stripe_c { +@@ -193,7 +193,7 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv) + kfree(sc); + return r; + } +- atomic_set(&(sc->stripe[i].error_count), 0); ++ atomic_set_unchecked(&(sc->stripe[i].error_count), 0); + } + + ti->private = sc; +@@ -315,7 +315,7 @@ static int stripe_status(struct dm_target *ti, + DMEMIT("%d ", sc->stripes); + for (i = 0; i < sc->stripes; i++) { + DMEMIT("%s ", sc->stripe[i].dev->name); +- buffer[i] = atomic_read(&(sc->stripe[i].error_count)) ? ++ buffer[i] = atomic_read_unchecked(&(sc->stripe[i].error_count)) ? + 'D' : 'A'; + } + buffer[i] = '\0'; +@@ -362,8 +362,8 @@ static int stripe_end_io(struct dm_target *ti, struct bio *bio, + */ + for (i = 0; i < sc->stripes; i++) + if (!strcmp(sc->stripe[i].dev->name, major_minor)) { +- atomic_inc(&(sc->stripe[i].error_count)); +- if (atomic_read(&(sc->stripe[i].error_count)) < ++ atomic_inc_unchecked(&(sc->stripe[i].error_count)); ++ if (atomic_read_unchecked(&(sc->stripe[i].error_count)) < + DM_IO_ERROR_THRESHOLD) + schedule_work(&sc->trigger_event); + } +diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c +index 2e227fb..44ead1f 100644 +--- a/drivers/md/dm-table.c ++++ b/drivers/md/dm-table.c +@@ -390,7 +390,7 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev, + if (!dev_size) + return 0; + +- if ((start >= dev_size) || (start + len > dev_size)) { ++ if ((start >= dev_size) || (len > dev_size - start)) { + DMWARN("%s: %s too small for target: " + "start=%llu, len=%llu, dev_size=%llu", + dm_device_name(ti->table->md), bdevname(bdev, b), +diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c +index 737d388..811ad5a 100644 +--- a/drivers/md/dm-thin-metadata.c ++++ b/drivers/md/dm-thin-metadata.c +@@ -432,7 +432,7 @@ static int init_pmd(struct dm_pool_metadata *pmd, + + pmd->info.tm = tm; + pmd->info.levels = 2; +- pmd->info.value_type.context = pmd->data_sm; ++ pmd->info.value_type.context = (dm_space_map_no_const *)pmd->data_sm; + pmd->info.value_type.size = sizeof(__le64); + pmd->info.value_type.inc = data_block_inc; + pmd->info.value_type.dec = data_block_dec; +@@ -451,7 +451,7 @@ static int init_pmd(struct dm_pool_metadata *pmd, + + pmd->bl_info.tm = tm; + pmd->bl_info.levels = 1; +- pmd->bl_info.value_type.context = pmd->data_sm; ++ pmd->bl_info.value_type.context = (dm_space_map_no_const *)pmd->data_sm; + pmd->bl_info.value_type.size = sizeof(__le64); + pmd->bl_info.value_type.inc = data_block_inc; + pmd->bl_info.value_type.dec = data_block_dec; +diff --git a/drivers/md/dm.c b/drivers/md/dm.c +index e24143c..ce2f21a1 100644 +--- a/drivers/md/dm.c ++++ b/drivers/md/dm.c +@@ -176,9 +176,9 @@ struct mapped_device { + /* + * Event handling. + */ +- atomic_t event_nr; ++ atomic_unchecked_t event_nr; + wait_queue_head_t eventq; +- atomic_t uevent_seq; ++ atomic_unchecked_t uevent_seq; + struct list_head uevent_list; + spinlock_t uevent_lock; /* Protect access to uevent_list */ + +@@ -1845,8 +1845,8 @@ static struct mapped_device *alloc_dev(int minor) + rwlock_init(&md->map_lock); + atomic_set(&md->holders, 1); + atomic_set(&md->open_count, 0); +- atomic_set(&md->event_nr, 0); +- atomic_set(&md->uevent_seq, 0); ++ atomic_set_unchecked(&md->event_nr, 0); ++ atomic_set_unchecked(&md->uevent_seq, 0); + INIT_LIST_HEAD(&md->uevent_list); + spin_lock_init(&md->uevent_lock); + +@@ -1980,7 +1980,7 @@ static void event_callback(void *context) + + dm_send_uevents(&uevents, &disk_to_dev(md->disk)->kobj); + +- atomic_inc(&md->event_nr); ++ atomic_inc_unchecked(&md->event_nr); + wake_up(&md->eventq); + } + +@@ -2622,18 +2622,18 @@ int dm_kobject_uevent(struct mapped_device *md, enum kobject_action action, + + uint32_t dm_next_uevent_seq(struct mapped_device *md) + { +- return atomic_add_return(1, &md->uevent_seq); ++ return atomic_add_return_unchecked(1, &md->uevent_seq); + } + + uint32_t dm_get_event_nr(struct mapped_device *md) + { +- return atomic_read(&md->event_nr); ++ return atomic_read_unchecked(&md->event_nr); + } + + int dm_wait_event(struct mapped_device *md, int event_nr) + { + return wait_event_interruptible(md->eventq, +- (event_nr != atomic_read(&md->event_nr))); ++ (event_nr != atomic_read_unchecked(&md->event_nr))); + } + + void dm_uevent_add(struct mapped_device *md, struct list_head *elist) +diff --git a/drivers/md/md.c b/drivers/md/md.c +index 2b30ffd..362b519 100644 +--- a/drivers/md/md.c ++++ b/drivers/md/md.c +@@ -277,10 +277,10 @@ EXPORT_SYMBOL_GPL(md_trim_bio); + * start build, activate spare + */ + static DECLARE_WAIT_QUEUE_HEAD(md_event_waiters); +-static atomic_t md_event_count; ++static atomic_unchecked_t md_event_count; + void md_new_event(struct mddev *mddev) + { +- atomic_inc(&md_event_count); ++ atomic_inc_unchecked(&md_event_count); + wake_up(&md_event_waiters); + } + EXPORT_SYMBOL_GPL(md_new_event); +@@ -290,7 +290,7 @@ EXPORT_SYMBOL_GPL(md_new_event); + */ + static void md_new_event_inintr(struct mddev *mddev) + { +- atomic_inc(&md_event_count); ++ atomic_inc_unchecked(&md_event_count); + wake_up(&md_event_waiters); + } + +@@ -1526,7 +1526,7 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_ + + rdev->preferred_minor = 0xffff; + rdev->data_offset = le64_to_cpu(sb->data_offset); +- atomic_set(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read)); ++ atomic_set_unchecked(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read)); + + rdev->sb_size = le32_to_cpu(sb->max_dev) * 2 + 256; + bmask = queue_logical_block_size(rdev->bdev->bd_disk->queue)-1; +@@ -1745,7 +1745,7 @@ static void super_1_sync(struct mddev *mddev, struct md_rdev *rdev) + else + sb->resync_offset = cpu_to_le64(0); + +- sb->cnt_corrected_read = cpu_to_le32(atomic_read(&rdev->corrected_errors)); ++ sb->cnt_corrected_read = cpu_to_le32(atomic_read_unchecked(&rdev->corrected_errors)); + + sb->raid_disks = cpu_to_le32(mddev->raid_disks); + sb->size = cpu_to_le64(mddev->dev_sectors); +@@ -2691,7 +2691,7 @@ __ATTR(state, S_IRUGO|S_IWUSR, state_show, state_store); + static ssize_t + errors_show(struct md_rdev *rdev, char *page) + { +- return sprintf(page, "%d\n", atomic_read(&rdev->corrected_errors)); ++ return sprintf(page, "%d\n", atomic_read_unchecked(&rdev->corrected_errors)); + } + + static ssize_t +@@ -2700,7 +2700,7 @@ errors_store(struct md_rdev *rdev, const char *buf, size_t len) + char *e; + unsigned long n = simple_strtoul(buf, &e, 10); + if (*buf && (*e == 0 || *e == '\n')) { +- atomic_set(&rdev->corrected_errors, n); ++ atomic_set_unchecked(&rdev->corrected_errors, n); + return len; + } + return -EINVAL; +@@ -3086,8 +3086,8 @@ int md_rdev_init(struct md_rdev *rdev) + rdev->sb_loaded = 0; + rdev->bb_page = NULL; + atomic_set(&rdev->nr_pending, 0); +- atomic_set(&rdev->read_errors, 0); +- atomic_set(&rdev->corrected_errors, 0); ++ atomic_set_unchecked(&rdev->read_errors, 0); ++ atomic_set_unchecked(&rdev->corrected_errors, 0); + + INIT_LIST_HEAD(&rdev->same_set); + init_waitqueue_head(&rdev->blocked_wait); +@@ -3744,8 +3744,8 @@ array_state_show(struct mddev *mddev, char *page) + return sprintf(page, "%s\n", array_states[st]); + } + +-static int do_md_stop(struct mddev * mddev, int ro, int is_open); +-static int md_set_readonly(struct mddev * mddev, int is_open); ++static int do_md_stop(struct mddev * mddev, int ro, struct block_device *bdev); ++static int md_set_readonly(struct mddev * mddev, struct block_device *bdev); + static int do_md_run(struct mddev * mddev); + static int restart_array(struct mddev *mddev); + +@@ -3761,14 +3761,14 @@ array_state_store(struct mddev *mddev, const char *buf, size_t len) + /* stopping an active array */ + if (atomic_read(&mddev->openers) > 0) + return -EBUSY; +- err = do_md_stop(mddev, 0, 0); ++ err = do_md_stop(mddev, 0, NULL); + break; + case inactive: + /* stopping an active array */ + if (mddev->pers) { + if (atomic_read(&mddev->openers) > 0) + return -EBUSY; +- err = do_md_stop(mddev, 2, 0); ++ err = do_md_stop(mddev, 2, NULL); + } else + err = 0; /* already inactive */ + break; +@@ -3776,7 +3776,7 @@ array_state_store(struct mddev *mddev, const char *buf, size_t len) + break; /* not supported yet */ + case readonly: + if (mddev->pers) +- err = md_set_readonly(mddev, 0); ++ err = md_set_readonly(mddev, NULL); + else { + mddev->ro = 1; + set_disk_ro(mddev->gendisk, 1); +@@ -3786,7 +3786,7 @@ array_state_store(struct mddev *mddev, const char *buf, size_t len) + case read_auto: + if (mddev->pers) { + if (mddev->ro == 0) +- err = md_set_readonly(mddev, 0); ++ err = md_set_readonly(mddev, NULL); + else if (mddev->ro == 1) + err = restart_array(mddev); + if (err == 0) { +@@ -5124,15 +5124,17 @@ void md_stop(struct mddev *mddev) + } + EXPORT_SYMBOL_GPL(md_stop); + +-static int md_set_readonly(struct mddev *mddev, int is_open) ++static int md_set_readonly(struct mddev *mddev, struct block_device *bdev) + { + int err = 0; + mutex_lock(&mddev->open_mutex); +- if (atomic_read(&mddev->openers) > is_open) { ++ if (atomic_read(&mddev->openers) > !!bdev) { + printk("md: %s still in use.\n",mdname(mddev)); + err = -EBUSY; + goto out; + } ++ if (bdev) ++ sync_blockdev(bdev); + if (mddev->pers) { + __md_stop_writes(mddev); + +@@ -5154,18 +5156,26 @@ out: + * 0 - completely stop and dis-assemble array + * 2 - stop but do not disassemble array + */ +-static int do_md_stop(struct mddev * mddev, int mode, int is_open) ++static int do_md_stop(struct mddev * mddev, int mode, ++ struct block_device *bdev) + { + struct gendisk *disk = mddev->gendisk; + struct md_rdev *rdev; + + mutex_lock(&mddev->open_mutex); +- if (atomic_read(&mddev->openers) > is_open || ++ if (atomic_read(&mddev->openers) > !!bdev || + mddev->sysfs_active) { + printk("md: %s still in use.\n",mdname(mddev)); + mutex_unlock(&mddev->open_mutex); + return -EBUSY; + } ++ if (bdev) ++ /* It is possible IO was issued on some other ++ * open file which was closed before we took ->open_mutex. ++ * As that was not the last close __blkdev_put will not ++ * have called sync_blockdev, so we must. ++ */ ++ sync_blockdev(bdev); + + if (mddev->pers) { + if (mddev->ro) +@@ -5239,7 +5249,7 @@ static void autorun_array(struct mddev *mddev) + err = do_md_run(mddev); + if (err) { + printk(KERN_WARNING "md: do_md_run() returned %d\n", err); +- do_md_stop(mddev, 0, 0); ++ do_md_stop(mddev, 0, NULL); + } + } + +@@ -6237,11 +6247,11 @@ static int md_ioctl(struct block_device *bdev, fmode_t mode, + goto done_unlock; + + case STOP_ARRAY: +- err = do_md_stop(mddev, 0, 1); ++ err = do_md_stop(mddev, 0, bdev); + goto done_unlock; + + case STOP_ARRAY_RO: +- err = md_set_readonly(mddev, 1); ++ err = md_set_readonly(mddev, bdev); + goto done_unlock; + + case BLKROSET: +@@ -6738,7 +6748,7 @@ static int md_seq_show(struct seq_file *seq, void *v) + + spin_unlock(&pers_lock); + seq_printf(seq, "\n"); +- seq->poll_event = atomic_read(&md_event_count); ++ seq->poll_event = atomic_read_unchecked(&md_event_count); + return 0; + } + if (v == (void*)2) { +@@ -6841,7 +6851,7 @@ static int md_seq_open(struct inode *inode, struct file *file) + return error; + + seq = file->private_data; +- seq->poll_event = atomic_read(&md_event_count); ++ seq->poll_event = atomic_read_unchecked(&md_event_count); + return error; + } + +@@ -6855,7 +6865,7 @@ static unsigned int mdstat_poll(struct file *filp, poll_table *wait) + /* always allow read */ + mask = POLLIN | POLLRDNORM; + +- if (seq->poll_event != atomic_read(&md_event_count)) ++ if (seq->poll_event != atomic_read_unchecked(&md_event_count)) + mask |= POLLERR | POLLPRI; + return mask; + } +@@ -6899,7 +6909,7 @@ static int is_mddev_idle(struct mddev *mddev, int init) + struct gendisk *disk = rdev->bdev->bd_contains->bd_disk; + curr_events = (int)part_stat_read(&disk->part0, sectors[0]) + + (int)part_stat_read(&disk->part0, sectors[1]) - +- atomic_read(&disk->sync_io); ++ atomic_read_unchecked(&disk->sync_io); + /* sync IO will cause sync_io to increase before the disk_stats + * as sync_io is counted when a request starts, and + * disk_stats is counted when it completes. +diff --git a/drivers/md/md.h b/drivers/md/md.h +index 1c2063c..9639970 100644 +--- a/drivers/md/md.h ++++ b/drivers/md/md.h +@@ -93,13 +93,13 @@ struct md_rdev { + * only maintained for arrays that + * support hot removal + */ +- atomic_t read_errors; /* number of consecutive read errors that ++ atomic_unchecked_t read_errors; /* number of consecutive read errors that + * we have tried to ignore. + */ + struct timespec last_read_error; /* monotonic time since our + * last read error + */ +- atomic_t corrected_errors; /* number of corrected read errors, ++ atomic_unchecked_t corrected_errors; /* number of corrected read errors, + * for reporting to userspace and storing + * in superblock. + */ +@@ -429,7 +429,7 @@ static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev) + + static inline void md_sync_acct(struct block_device *bdev, unsigned long nr_sectors) + { +- atomic_add(nr_sectors, &bdev->bd_contains->bd_disk->sync_io); ++ atomic_add_unchecked(nr_sectors, &bdev->bd_contains->bd_disk->sync_io); + } + + struct md_personality +diff --git a/drivers/md/persistent-data/dm-space-map-checker.c b/drivers/md/persistent-data/dm-space-map-checker.c +index fc90c11..c8cd9a9 100644 +--- a/drivers/md/persistent-data/dm-space-map-checker.c ++++ b/drivers/md/persistent-data/dm-space-map-checker.c +@@ -167,7 +167,7 @@ static int ca_commit(struct count_array *old, struct count_array *new) + /*----------------------------------------------------------------*/ + + struct sm_checker { +- struct dm_space_map sm; ++ dm_space_map_no_const sm; + + struct count_array old_counts; + struct count_array counts; +diff --git a/drivers/md/persistent-data/dm-space-map-disk.c b/drivers/md/persistent-data/dm-space-map-disk.c +index 3d0ed53..35dc592 100644 +--- a/drivers/md/persistent-data/dm-space-map-disk.c ++++ b/drivers/md/persistent-data/dm-space-map-disk.c +@@ -23,7 +23,7 @@ + * Space map interface. + */ + struct sm_disk { +- struct dm_space_map sm; ++ dm_space_map_no_const sm; + + struct ll_disk ll; + struct ll_disk old_ll; +diff --git a/drivers/md/persistent-data/dm-space-map-metadata.c b/drivers/md/persistent-data/dm-space-map-metadata.c +index e89ae5e..062e4c2 100644 +--- a/drivers/md/persistent-data/dm-space-map-metadata.c ++++ b/drivers/md/persistent-data/dm-space-map-metadata.c +@@ -43,7 +43,7 @@ struct block_op { + }; + + struct sm_metadata { +- struct dm_space_map sm; ++ dm_space_map_no_const sm; + + struct ll_disk ll; + struct ll_disk old_ll; +diff --git a/drivers/md/persistent-data/dm-space-map.h b/drivers/md/persistent-data/dm-space-map.h +index 1cbfc6b..56e1dbb 100644 +--- a/drivers/md/persistent-data/dm-space-map.h ++++ b/drivers/md/persistent-data/dm-space-map.h +@@ -60,6 +60,7 @@ struct dm_space_map { + int (*root_size)(struct dm_space_map *sm, size_t *result); + int (*copy_root)(struct dm_space_map *sm, void *copy_to_here_le, size_t len); + }; ++typedef struct dm_space_map __no_const dm_space_map_no_const; + + /*----------------------------------------------------------------*/ + +diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c +index d1f74ab..d1b24fd 100644 +--- a/drivers/md/raid1.c ++++ b/drivers/md/raid1.c +@@ -1688,7 +1688,7 @@ static int fix_sync_read_error(struct r1bio *r1_bio) + if (r1_sync_page_io(rdev, sect, s, + bio->bi_io_vec[idx].bv_page, + READ) != 0) +- atomic_add(s, &rdev->corrected_errors); ++ atomic_add_unchecked(s, &rdev->corrected_errors); + } + sectors -= s; + sect += s; +@@ -1902,7 +1902,7 @@ static void fix_read_error(struct r1conf *conf, int read_disk, + test_bit(In_sync, &rdev->flags)) { + if (r1_sync_page_io(rdev, sect, s, + conf->tmppage, READ)) { +- atomic_add(s, &rdev->corrected_errors); ++ atomic_add_unchecked(s, &rdev->corrected_errors); + printk(KERN_INFO + "md/raid1:%s: read error corrected " + "(%d sectors at %llu on %s)\n", +diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c +index a954c95..6e7a21c 100644 +--- a/drivers/md/raid10.c ++++ b/drivers/md/raid10.c +@@ -1684,7 +1684,7 @@ static void end_sync_read(struct bio *bio, int error) + /* The write handler will notice the lack of + * R10BIO_Uptodate and record any errors etc + */ +- atomic_add(r10_bio->sectors, ++ atomic_add_unchecked(r10_bio->sectors, + &conf->mirrors[d].rdev->corrected_errors); + + /* for reconstruct, we always reschedule after a read. +@@ -2033,7 +2033,7 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev) + { + struct timespec cur_time_mon; + unsigned long hours_since_last; +- unsigned int read_errors = atomic_read(&rdev->read_errors); ++ unsigned int read_errors = atomic_read_unchecked(&rdev->read_errors); + + ktime_get_ts(&cur_time_mon); + +@@ -2055,9 +2055,9 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev) + * overflowing the shift of read_errors by hours_since_last. + */ + if (hours_since_last >= 8 * sizeof(read_errors)) +- atomic_set(&rdev->read_errors, 0); ++ atomic_set_unchecked(&rdev->read_errors, 0); + else +- atomic_set(&rdev->read_errors, read_errors >> hours_since_last); ++ atomic_set_unchecked(&rdev->read_errors, read_errors >> hours_since_last); + } + + static int r10_sync_page_io(struct md_rdev *rdev, sector_t sector, +@@ -2111,8 +2111,8 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10 + return; + + check_decay_read_errors(mddev, rdev); +- atomic_inc(&rdev->read_errors); +- if (atomic_read(&rdev->read_errors) > max_read_errors) { ++ atomic_inc_unchecked(&rdev->read_errors); ++ if (atomic_read_unchecked(&rdev->read_errors) > max_read_errors) { + char b[BDEVNAME_SIZE]; + bdevname(rdev->bdev, b); + +@@ -2120,7 +2120,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10 + "md/raid10:%s: %s: Raid device exceeded " + "read_error threshold [cur %d:max %d]\n", + mdname(mddev), b, +- atomic_read(&rdev->read_errors), max_read_errors); ++ atomic_read_unchecked(&rdev->read_errors), max_read_errors); + printk(KERN_NOTICE + "md/raid10:%s: %s: Failing raid device\n", + mdname(mddev), b); +@@ -2271,7 +2271,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10 + (unsigned long long)( + sect + rdev->data_offset), + bdevname(rdev->bdev, b)); +- atomic_add(s, &rdev->corrected_errors); ++ atomic_add_unchecked(s, &rdev->corrected_errors); + } + + rdev_dec_pending(rdev, mddev); +diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c +index 73a5800..2b0e3b1 100644 +--- a/drivers/md/raid5.c ++++ b/drivers/md/raid5.c +@@ -1694,18 +1694,18 @@ static void raid5_end_read_request(struct bio * bi, int error) + (unsigned long long)(sh->sector + + rdev->data_offset), + bdevname(rdev->bdev, b)); +- atomic_add(STRIPE_SECTORS, &rdev->corrected_errors); ++ atomic_add_unchecked(STRIPE_SECTORS, &rdev->corrected_errors); + clear_bit(R5_ReadError, &sh->dev[i].flags); + clear_bit(R5_ReWrite, &sh->dev[i].flags); + } +- if (atomic_read(&rdev->read_errors)) +- atomic_set(&rdev->read_errors, 0); ++ if (atomic_read_unchecked(&rdev->read_errors)) ++ atomic_set_unchecked(&rdev->read_errors, 0); + } else { + const char *bdn = bdevname(rdev->bdev, b); + int retry = 0; + + clear_bit(R5_UPTODATE, &sh->dev[i].flags); +- atomic_inc(&rdev->read_errors); ++ atomic_inc_unchecked(&rdev->read_errors); + if (test_bit(R5_ReadRepl, &sh->dev[i].flags)) + printk_ratelimited( + KERN_WARNING +@@ -1734,7 +1734,7 @@ static void raid5_end_read_request(struct bio * bi, int error) + (unsigned long long)(sh->sector + + rdev->data_offset), + bdn); +- else if (atomic_read(&rdev->read_errors) ++ else if (atomic_read_unchecked(&rdev->read_errors) + > conf->max_nr_stripes) + printk(KERN_WARNING + "md/raid:%s: Too many read errors, failing device %s.\n", +diff --git a/drivers/media/dvb/ddbridge/ddbridge-core.c b/drivers/media/dvb/ddbridge/ddbridge-core.c +index d88c4aa..17c80b1 100644 +--- a/drivers/media/dvb/ddbridge/ddbridge-core.c ++++ b/drivers/media/dvb/ddbridge/ddbridge-core.c +@@ -1679,7 +1679,7 @@ static struct ddb_info ddb_v6 = { + .subvendor = _subvend, .subdevice = _subdev, \ + .driver_data = (unsigned long)&_driverdata } + +-static const struct pci_device_id ddb_id_tbl[] __devinitdata = { ++static const struct pci_device_id ddb_id_tbl[] __devinitconst = { + DDB_ID(DDVID, 0x0002, DDVID, 0x0001, ddb_octopus), + DDB_ID(DDVID, 0x0003, DDVID, 0x0001, ddb_octopus), + DDB_ID(DDVID, 0x0003, DDVID, 0x0002, ddb_octopus_le), +diff --git a/drivers/media/dvb/dvb-core/dvb_demux.h b/drivers/media/dvb/dvb-core/dvb_demux.h +index a7d876f..8c21b61 100644 +--- a/drivers/media/dvb/dvb-core/dvb_demux.h ++++ b/drivers/media/dvb/dvb-core/dvb_demux.h +@@ -73,7 +73,7 @@ struct dvb_demux_feed { + union { + dmx_ts_cb ts; + dmx_section_cb sec; +- } cb; ++ } __no_const cb; + + struct dvb_demux *demux; + void *priv; +diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c +index 39eab73..60033e7 100644 +--- a/drivers/media/dvb/dvb-core/dvbdev.c ++++ b/drivers/media/dvb/dvb-core/dvbdev.c +@@ -192,7 +192,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev, + const struct dvb_device *template, void *priv, int type) + { + struct dvb_device *dvbdev; +- struct file_operations *dvbdevfops; ++ file_operations_no_const *dvbdevfops; + struct device *clsdev; + int minor; + int id; +diff --git a/drivers/media/dvb/dvb-usb/cxusb.c b/drivers/media/dvb/dvb-usb/cxusb.c +index 3940bb0..fb3952a 100644 +--- a/drivers/media/dvb/dvb-usb/cxusb.c ++++ b/drivers/media/dvb/dvb-usb/cxusb.c +@@ -1068,7 +1068,7 @@ static struct dib0070_config dib7070p_dib0070_config = { + + struct dib0700_adapter_state { + int (*set_param_save) (struct dvb_frontend *); +-}; ++} __no_const; + + static int dib7070_set_param_override(struct dvb_frontend *fe) + { +diff --git a/drivers/media/dvb/dvb-usb/dw2102.c b/drivers/media/dvb/dvb-usb/dw2102.c +index 451c5a7..649f711 100644 +--- a/drivers/media/dvb/dvb-usb/dw2102.c ++++ b/drivers/media/dvb/dvb-usb/dw2102.c +@@ -95,7 +95,7 @@ struct su3000_state { + + struct s6x0_state { + int (*old_set_voltage)(struct dvb_frontend *f, fe_sec_voltage_t v); +-}; ++} __no_const; + + /* debug */ + static int dvb_usb_dw2102_debug; +diff --git a/drivers/media/dvb/frontends/dib3000.h b/drivers/media/dvb/frontends/dib3000.h +index 404f63a..4796533 100644 +--- a/drivers/media/dvb/frontends/dib3000.h ++++ b/drivers/media/dvb/frontends/dib3000.h +@@ -39,7 +39,7 @@ struct dib_fe_xfer_ops + int (*fifo_ctrl)(struct dvb_frontend *fe, int onoff); + int (*pid_ctrl)(struct dvb_frontend *fe, int index, int pid, int onoff); + int (*tuner_pass_ctrl)(struct dvb_frontend *fe, int onoff, u8 pll_ctrl); +-}; ++} __no_const; + + #if defined(CONFIG_DVB_DIB3000MB) || (defined(CONFIG_DVB_DIB3000MB_MODULE) && defined(MODULE)) + extern struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config, +diff --git a/drivers/media/dvb/ngene/ngene-cards.c b/drivers/media/dvb/ngene/ngene-cards.c +index 7539a5d..06531a6 100644 +--- a/drivers/media/dvb/ngene/ngene-cards.c ++++ b/drivers/media/dvb/ngene/ngene-cards.c +@@ -478,7 +478,7 @@ static struct ngene_info ngene_info_m780 = { + + /****************************************************************************/ + +-static const struct pci_device_id ngene_id_tbl[] __devinitdata = { ++static const struct pci_device_id ngene_id_tbl[] __devinitconst = { + NGENE_ID(0x18c3, 0xabc3, ngene_info_cineS2), + NGENE_ID(0x18c3, 0xabc4, ngene_info_cineS2), + NGENE_ID(0x18c3, 0xdb01, ngene_info_satixS2), +diff --git a/drivers/media/radio/radio-cadet.c b/drivers/media/radio/radio-cadet.c +index 16a089f..1661b11 100644 +--- a/drivers/media/radio/radio-cadet.c ++++ b/drivers/media/radio/radio-cadet.c +@@ -326,6 +326,8 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo + unsigned char readbuf[RDS_BUFFER]; + int i = 0; + ++ if (count > RDS_BUFFER) ++ return -EFAULT; + mutex_lock(&dev->lock); + if (dev->rdsstat == 0) { + dev->rdsstat = 1; +@@ -347,7 +349,7 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo + readbuf[i++] = dev->rdsbuf[dev->rdsout++]; + mutex_unlock(&dev->lock); + +- if (copy_to_user(data, readbuf, i)) ++ if (i > sizeof(readbuf) || copy_to_user(data, readbuf, i)) + return -EFAULT; + return i; + } +diff --git a/drivers/media/video/au0828/au0828.h b/drivers/media/video/au0828/au0828.h +index 9cde353..8c6a1c3 100644 +--- a/drivers/media/video/au0828/au0828.h ++++ b/drivers/media/video/au0828/au0828.h +@@ -191,7 +191,7 @@ struct au0828_dev { + + /* I2C */ + struct i2c_adapter i2c_adap; +- struct i2c_algorithm i2c_algo; ++ i2c_algorithm_no_const i2c_algo; + struct i2c_client i2c_client; + u32 i2c_rc; + +diff --git a/drivers/media/video/cx25821/cx25821-core.c b/drivers/media/video/cx25821/cx25821-core.c +index 7930ca5..235bf7d 100644 +--- a/drivers/media/video/cx25821/cx25821-core.c ++++ b/drivers/media/video/cx25821/cx25821-core.c +@@ -912,9 +912,6 @@ static int cx25821_dev_setup(struct cx25821_dev *dev) + list_add_tail(&dev->devlist, &cx25821_devlist); + mutex_unlock(&cx25821_devlist_mutex); + +- strcpy(cx25821_boards[UNKNOWN_BOARD].name, "unknown"); +- strcpy(cx25821_boards[CX25821_BOARD].name, "cx25821"); +- + if (dev->pci->device != 0x8210) { + pr_info("%s(): Exiting. Incorrect Hardware device = 0x%02x\n", + __func__, dev->pci->device); +diff --git a/drivers/media/video/cx25821/cx25821.h b/drivers/media/video/cx25821/cx25821.h +index b9aa801..029f293 100644 +--- a/drivers/media/video/cx25821/cx25821.h ++++ b/drivers/media/video/cx25821/cx25821.h +@@ -187,7 +187,7 @@ enum port { + }; + + struct cx25821_board { +- char *name; ++ const char *name; + enum port porta; + enum port portb; + enum port portc; +diff --git a/drivers/media/video/cx88/cx88-alsa.c b/drivers/media/video/cx88/cx88-alsa.c +index 04bf662..e0ac026 100644 +--- a/drivers/media/video/cx88/cx88-alsa.c ++++ b/drivers/media/video/cx88/cx88-alsa.c +@@ -766,7 +766,7 @@ static struct snd_kcontrol_new snd_cx88_alc_switch = { + * Only boards with eeprom and byte 1 at eeprom=1 have it + */ + +-static const struct pci_device_id const cx88_audio_pci_tbl[] __devinitdata = { ++static const struct pci_device_id const cx88_audio_pci_tbl[] __devinitconst = { + {0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, + {0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, + {0, } +diff --git a/drivers/media/video/omap/omap_vout.c b/drivers/media/video/omap/omap_vout.c +index 88cf9d9..bbc4b2c 100644 +--- a/drivers/media/video/omap/omap_vout.c ++++ b/drivers/media/video/omap/omap_vout.c +@@ -64,7 +64,6 @@ enum omap_vout_channels { + OMAP_VIDEO2, + }; + +-static struct videobuf_queue_ops video_vbq_ops; + /* Variables configurable through module params*/ + static u32 video1_numbuffers = 3; + static u32 video2_numbuffers = 3; +@@ -1000,6 +999,12 @@ static int omap_vout_open(struct file *file) + { + struct videobuf_queue *q; + struct omap_vout_device *vout = NULL; ++ static struct videobuf_queue_ops video_vbq_ops = { ++ .buf_setup = omap_vout_buffer_setup, ++ .buf_prepare = omap_vout_buffer_prepare, ++ .buf_release = omap_vout_buffer_release, ++ .buf_queue = omap_vout_buffer_queue, ++ }; + + vout = video_drvdata(file); + v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__); +@@ -1017,10 +1022,6 @@ static int omap_vout_open(struct file *file) + vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; + + q = &vout->vbq; +- video_vbq_ops.buf_setup = omap_vout_buffer_setup; +- video_vbq_ops.buf_prepare = omap_vout_buffer_prepare; +- video_vbq_ops.buf_release = omap_vout_buffer_release; +- video_vbq_ops.buf_queue = omap_vout_buffer_queue; + spin_lock_init(&vout->vbq_lock); + + videobuf_queue_dma_contig_init(q, &video_vbq_ops, q->dev, +diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h +index 305e6aa..0143317 100644 +--- a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h ++++ b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h +@@ -196,7 +196,7 @@ struct pvr2_hdw { + + /* I2C stuff */ + struct i2c_adapter i2c_adap; +- struct i2c_algorithm i2c_algo; ++ i2c_algorithm_no_const i2c_algo; + pvr2_i2c_func i2c_func[PVR2_I2C_FUNC_CNT]; + int i2c_cx25840_hack_state; + int i2c_linked; +diff --git a/drivers/media/video/timblogiw.c b/drivers/media/video/timblogiw.c +index 02194c0..091733b 100644 +--- a/drivers/media/video/timblogiw.c ++++ b/drivers/media/video/timblogiw.c +@@ -745,7 +745,7 @@ static int timblogiw_mmap(struct file *file, struct vm_area_struct *vma) + + /* Platform device functions */ + +-static __devinitconst struct v4l2_ioctl_ops timblogiw_ioctl_ops = { ++static __devinitconst v4l2_ioctl_ops_no_const timblogiw_ioctl_ops = { + .vidioc_querycap = timblogiw_querycap, + .vidioc_enum_fmt_vid_cap = timblogiw_enum_fmt, + .vidioc_g_fmt_vid_cap = timblogiw_g_fmt, +@@ -767,7 +767,7 @@ static __devinitconst struct v4l2_ioctl_ops timblogiw_ioctl_ops = { + .vidioc_enum_framesizes = timblogiw_enum_framesizes, + }; + +-static __devinitconst struct v4l2_file_operations timblogiw_fops = { ++static __devinitconst v4l2_file_operations_no_const timblogiw_fops = { + .owner = THIS_MODULE, + .open = timblogiw_open, + .release = timblogiw_close, +diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c +index a5c591f..db692a3 100644 +--- a/drivers/message/fusion/mptbase.c ++++ b/drivers/message/fusion/mptbase.c +@@ -6754,8 +6754,13 @@ static int mpt_iocinfo_proc_show(struct seq_file *m, void *v) + seq_printf(m, " MaxChainDepth = 0x%02x frames\n", ioc->facts.MaxChainDepth); + seq_printf(m, " MinBlockSize = 0x%02x bytes\n", 4*ioc->facts.BlockSize); + ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ seq_printf(m, " RequestFrames @ 0x%p (Dma @ 0x%p)\n", NULL, NULL); ++#else + seq_printf(m, " RequestFrames @ 0x%p (Dma @ 0x%p)\n", + (void *)ioc->req_frames, (void *)(ulong)ioc->req_frames_dma); ++#endif ++ + /* + * Rounding UP to nearest 4-kB boundary here... + */ +diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c +index 551262e..7551198 100644 +--- a/drivers/message/fusion/mptsas.c ++++ b/drivers/message/fusion/mptsas.c +@@ -446,6 +446,23 @@ mptsas_is_end_device(struct mptsas_devinfo * attached) + return 0; + } + ++static inline void ++mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy) ++{ ++ if (phy_info->port_details) { ++ phy_info->port_details->rphy = rphy; ++ dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n", ++ ioc->name, rphy)); ++ } ++ ++ if (rphy) { ++ dsaswideprintk(ioc, dev_printk(KERN_DEBUG, ++ &rphy->dev, MYIOC_s_FMT "add:", ioc->name)); ++ dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n", ++ ioc->name, rphy, rphy->dev.release)); ++ } ++} ++ + /* no mutex */ + static void + mptsas_port_delete(MPT_ADAPTER *ioc, struct mptsas_portinfo_details * port_details) +@@ -484,23 +501,6 @@ mptsas_get_rphy(struct mptsas_phyinfo *phy_info) + return NULL; + } + +-static inline void +-mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy) +-{ +- if (phy_info->port_details) { +- phy_info->port_details->rphy = rphy; +- dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n", +- ioc->name, rphy)); +- } +- +- if (rphy) { +- dsaswideprintk(ioc, dev_printk(KERN_DEBUG, +- &rphy->dev, MYIOC_s_FMT "add:", ioc->name)); +- dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n", +- ioc->name, rphy, rphy->dev.release)); +- } +-} +- + static inline struct sas_port * + mptsas_get_port(struct mptsas_phyinfo *phy_info) + { +diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c +index 0c3ced7..1fe34ec 100644 +--- a/drivers/message/fusion/mptscsih.c ++++ b/drivers/message/fusion/mptscsih.c +@@ -1270,15 +1270,16 @@ mptscsih_info(struct Scsi_Host *SChost) + + h = shost_priv(SChost); + +- if (h) { +- if (h->info_kbuf == NULL) +- if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL) +- return h->info_kbuf; +- h->info_kbuf[0] = '\0'; ++ if (!h) ++ return NULL; + +- mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0); +- h->info_kbuf[size-1] = '\0'; +- } ++ if (h->info_kbuf == NULL) ++ if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL) ++ return h->info_kbuf; ++ h->info_kbuf[0] = '\0'; ++ ++ mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0); ++ h->info_kbuf[size-1] = '\0'; + + return h->info_kbuf; + } +diff --git a/drivers/message/i2o/i2o_proc.c b/drivers/message/i2o/i2o_proc.c +index 6d115c7..58ff7fd 100644 +--- a/drivers/message/i2o/i2o_proc.c ++++ b/drivers/message/i2o/i2o_proc.c +@@ -255,13 +255,6 @@ static char *scsi_devices[] = { + "Array Controller Device" + }; + +-static char *chtostr(u8 * chars, int n) +-{ +- char tmp[256]; +- tmp[0] = 0; +- return strncat(tmp, (char *)chars, n); +-} +- + static int i2o_report_query_status(struct seq_file *seq, int block_status, + char *group) + { +@@ -838,8 +831,7 @@ static int i2o_seq_show_ddm_table(struct seq_file *seq, void *v) + + seq_printf(seq, "%-#7x", ddm_table.i2o_vendor_id); + seq_printf(seq, "%-#8x", ddm_table.module_id); +- seq_printf(seq, "%-29s", +- chtostr(ddm_table.module_name_version, 28)); ++ seq_printf(seq, "%-.28s", ddm_table.module_name_version); + seq_printf(seq, "%9d ", ddm_table.data_size); + seq_printf(seq, "%8d", ddm_table.code_size); + +@@ -940,8 +932,8 @@ static int i2o_seq_show_drivers_stored(struct seq_file *seq, void *v) + + seq_printf(seq, "%-#7x", dst->i2o_vendor_id); + seq_printf(seq, "%-#8x", dst->module_id); +- seq_printf(seq, "%-29s", chtostr(dst->module_name_version, 28)); +- seq_printf(seq, "%-9s", chtostr(dst->date, 8)); ++ seq_printf(seq, "%-.28s", dst->module_name_version); ++ seq_printf(seq, "%-.8s", dst->date); + seq_printf(seq, "%8d ", dst->module_size); + seq_printf(seq, "%8d ", dst->mpb_size); + seq_printf(seq, "0x%04x", dst->module_flags); +@@ -1272,14 +1264,10 @@ static int i2o_seq_show_dev_identity(struct seq_file *seq, void *v) + seq_printf(seq, "Device Class : %s\n", i2o_get_class_name(work16[0])); + seq_printf(seq, "Owner TID : %0#5x\n", work16[2]); + seq_printf(seq, "Parent TID : %0#5x\n", work16[3]); +- seq_printf(seq, "Vendor info : %s\n", +- chtostr((u8 *) (work32 + 2), 16)); +- seq_printf(seq, "Product info : %s\n", +- chtostr((u8 *) (work32 + 6), 16)); +- seq_printf(seq, "Description : %s\n", +- chtostr((u8 *) (work32 + 10), 16)); +- seq_printf(seq, "Product rev. : %s\n", +- chtostr((u8 *) (work32 + 14), 8)); ++ seq_printf(seq, "Vendor info : %.16s\n", (u8 *) (work32 + 2)); ++ seq_printf(seq, "Product info : %.16s\n", (u8 *) (work32 + 6)); ++ seq_printf(seq, "Description : %.16s\n", (u8 *) (work32 + 10)); ++ seq_printf(seq, "Product rev. : %.8s\n", (u8 *) (work32 + 14)); + + seq_printf(seq, "Serial number : "); + print_serial_number(seq, (u8 *) (work32 + 16), +@@ -1324,10 +1312,8 @@ static int i2o_seq_show_ddm_identity(struct seq_file *seq, void *v) + } + + seq_printf(seq, "Registering DDM TID : 0x%03x\n", result.ddm_tid); +- seq_printf(seq, "Module name : %s\n", +- chtostr(result.module_name, 24)); +- seq_printf(seq, "Module revision : %s\n", +- chtostr(result.module_rev, 8)); ++ seq_printf(seq, "Module name : %.24s\n", result.module_name); ++ seq_printf(seq, "Module revision : %.8s\n", result.module_rev); + + seq_printf(seq, "Serial number : "); + print_serial_number(seq, result.serial_number, sizeof(result) - 36); +@@ -1358,14 +1344,10 @@ static int i2o_seq_show_uinfo(struct seq_file *seq, void *v) + return 0; + } + +- seq_printf(seq, "Device name : %s\n", +- chtostr(result.device_name, 64)); +- seq_printf(seq, "Service name : %s\n", +- chtostr(result.service_name, 64)); +- seq_printf(seq, "Physical name : %s\n", +- chtostr(result.physical_location, 64)); +- seq_printf(seq, "Instance number : %s\n", +- chtostr(result.instance_number, 4)); ++ seq_printf(seq, "Device name : %.64s\n", result.device_name); ++ seq_printf(seq, "Service name : %.64s\n", result.service_name); ++ seq_printf(seq, "Physical name : %.64s\n", result.physical_location); ++ seq_printf(seq, "Instance number : %.4s\n", result.instance_number); + + return 0; + } +diff --git a/drivers/message/i2o/iop.c b/drivers/message/i2o/iop.c +index a8c08f3..155fe3d 100644 +--- a/drivers/message/i2o/iop.c ++++ b/drivers/message/i2o/iop.c +@@ -111,10 +111,10 @@ u32 i2o_cntxt_list_add(struct i2o_controller * c, void *ptr) + + spin_lock_irqsave(&c->context_list_lock, flags); + +- if (unlikely(atomic_inc_and_test(&c->context_list_counter))) +- atomic_inc(&c->context_list_counter); ++ if (unlikely(atomic_inc_and_test_unchecked(&c->context_list_counter))) ++ atomic_inc_unchecked(&c->context_list_counter); + +- entry->context = atomic_read(&c->context_list_counter); ++ entry->context = atomic_read_unchecked(&c->context_list_counter); + + list_add(&entry->list, &c->context_list); + +@@ -1077,7 +1077,7 @@ struct i2o_controller *i2o_iop_alloc(void) + + #if BITS_PER_LONG == 64 + spin_lock_init(&c->context_list_lock); +- atomic_set(&c->context_list_counter, 0); ++ atomic_set_unchecked(&c->context_list_counter, 0); + INIT_LIST_HEAD(&c->context_list); + #endif + +diff --git a/drivers/mfd/abx500-core.c b/drivers/mfd/abx500-core.c +index 7ce65f4..e66e9bc 100644 +--- a/drivers/mfd/abx500-core.c ++++ b/drivers/mfd/abx500-core.c +@@ -15,7 +15,7 @@ static LIST_HEAD(abx500_list); + + struct abx500_device_entry { + struct list_head list; +- struct abx500_ops ops; ++ abx500_ops_no_const ops; + struct device *dev; + }; + +diff --git a/drivers/mfd/janz-cmodio.c b/drivers/mfd/janz-cmodio.c +index a9223ed..4127b13 100644 +--- a/drivers/mfd/janz-cmodio.c ++++ b/drivers/mfd/janz-cmodio.c +@@ -13,6 +13,7 @@ + + #include <linux/kernel.h> + #include <linux/module.h> ++#include <linux/slab.h> + #include <linux/init.h> + #include <linux/pci.h> + #include <linux/interrupt.h> +diff --git a/drivers/misc/lis3lv02d/lis3lv02d.c b/drivers/misc/lis3lv02d/lis3lv02d.c +index a981e2a..5ca0c8b 100644 +--- a/drivers/misc/lis3lv02d/lis3lv02d.c ++++ b/drivers/misc/lis3lv02d/lis3lv02d.c +@@ -466,7 +466,7 @@ static irqreturn_t lis302dl_interrupt(int irq, void *data) + * the lid is closed. This leads to interrupts as soon as a little move + * is done. + */ +- atomic_inc(&lis3->count); ++ atomic_inc_unchecked(&lis3->count); + + wake_up_interruptible(&lis3->misc_wait); + kill_fasync(&lis3->async_queue, SIGIO, POLL_IN); +@@ -552,7 +552,7 @@ static int lis3lv02d_misc_open(struct inode *inode, struct file *file) + if (lis3->pm_dev) + pm_runtime_get_sync(lis3->pm_dev); + +- atomic_set(&lis3->count, 0); ++ atomic_set_unchecked(&lis3->count, 0); + return 0; + } + +@@ -585,7 +585,7 @@ static ssize_t lis3lv02d_misc_read(struct file *file, char __user *buf, + add_wait_queue(&lis3->misc_wait, &wait); + while (true) { + set_current_state(TASK_INTERRUPTIBLE); +- data = atomic_xchg(&lis3->count, 0); ++ data = atomic_xchg_unchecked(&lis3->count, 0); + if (data) + break; + +@@ -626,7 +626,7 @@ static unsigned int lis3lv02d_misc_poll(struct file *file, poll_table *wait) + struct lis3lv02d, miscdev); + + poll_wait(file, &lis3->misc_wait, wait); +- if (atomic_read(&lis3->count)) ++ if (atomic_read_unchecked(&lis3->count)) + return POLLIN | POLLRDNORM; + return 0; + } +diff --git a/drivers/misc/lis3lv02d/lis3lv02d.h b/drivers/misc/lis3lv02d/lis3lv02d.h +index 2b1482a..5d33616 100644 +--- a/drivers/misc/lis3lv02d/lis3lv02d.h ++++ b/drivers/misc/lis3lv02d/lis3lv02d.h +@@ -266,7 +266,7 @@ struct lis3lv02d { + struct input_polled_dev *idev; /* input device */ + struct platform_device *pdev; /* platform device */ + struct regulator_bulk_data regulators[2]; +- atomic_t count; /* interrupt count after last read */ ++ atomic_unchecked_t count; /* interrupt count after last read */ + union axis_conversion ac; /* hw -> logical axis */ + int mapped_btns[3]; + +diff --git a/drivers/misc/sgi-gru/gruhandles.c b/drivers/misc/sgi-gru/gruhandles.c +index 2f30bad..c4c13d0 100644 +--- a/drivers/misc/sgi-gru/gruhandles.c ++++ b/drivers/misc/sgi-gru/gruhandles.c +@@ -44,8 +44,8 @@ static void update_mcs_stats(enum mcs_op op, unsigned long clks) + unsigned long nsec; + + nsec = CLKS2NSEC(clks); +- atomic_long_inc(&mcs_op_statistics[op].count); +- atomic_long_add(nsec, &mcs_op_statistics[op].total); ++ atomic_long_inc_unchecked(&mcs_op_statistics[op].count); ++ atomic_long_add_unchecked(nsec, &mcs_op_statistics[op].total); + if (mcs_op_statistics[op].max < nsec) + mcs_op_statistics[op].max = nsec; + } +diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c +index 950dbe9..eeef0f8 100644 +--- a/drivers/misc/sgi-gru/gruprocfs.c ++++ b/drivers/misc/sgi-gru/gruprocfs.c +@@ -32,9 +32,9 @@ + + #define printstat(s, f) printstat_val(s, &gru_stats.f, #f) + +-static void printstat_val(struct seq_file *s, atomic_long_t *v, char *id) ++static void printstat_val(struct seq_file *s, atomic_long_unchecked_t *v, char *id) + { +- unsigned long val = atomic_long_read(v); ++ unsigned long val = atomic_long_read_unchecked(v); + + seq_printf(s, "%16lu %s\n", val, id); + } +@@ -134,8 +134,8 @@ static int mcs_statistics_show(struct seq_file *s, void *p) + + seq_printf(s, "%-20s%12s%12s%12s\n", "#id", "count", "aver-clks", "max-clks"); + for (op = 0; op < mcsop_last; op++) { +- count = atomic_long_read(&mcs_op_statistics[op].count); +- total = atomic_long_read(&mcs_op_statistics[op].total); ++ count = atomic_long_read_unchecked(&mcs_op_statistics[op].count); ++ total = atomic_long_read_unchecked(&mcs_op_statistics[op].total); + max = mcs_op_statistics[op].max; + seq_printf(s, "%-20s%12ld%12ld%12ld\n", id[op], count, + count ? total / count : 0, max); +diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h +index 5c3ce24..4915ccb 100644 +--- a/drivers/misc/sgi-gru/grutables.h ++++ b/drivers/misc/sgi-gru/grutables.h +@@ -167,82 +167,82 @@ extern unsigned int gru_max_gids; + * GRU statistics. + */ + struct gru_stats_s { +- atomic_long_t vdata_alloc; +- atomic_long_t vdata_free; +- atomic_long_t gts_alloc; +- atomic_long_t gts_free; +- atomic_long_t gms_alloc; +- atomic_long_t gms_free; +- atomic_long_t gts_double_allocate; +- atomic_long_t assign_context; +- atomic_long_t assign_context_failed; +- atomic_long_t free_context; +- atomic_long_t load_user_context; +- atomic_long_t load_kernel_context; +- atomic_long_t lock_kernel_context; +- atomic_long_t unlock_kernel_context; +- atomic_long_t steal_user_context; +- atomic_long_t steal_kernel_context; +- atomic_long_t steal_context_failed; +- atomic_long_t nopfn; +- atomic_long_t asid_new; +- atomic_long_t asid_next; +- atomic_long_t asid_wrap; +- atomic_long_t asid_reuse; +- atomic_long_t intr; +- atomic_long_t intr_cbr; +- atomic_long_t intr_tfh; +- atomic_long_t intr_spurious; +- atomic_long_t intr_mm_lock_failed; +- atomic_long_t call_os; +- atomic_long_t call_os_wait_queue; +- atomic_long_t user_flush_tlb; +- atomic_long_t user_unload_context; +- atomic_long_t user_exception; +- atomic_long_t set_context_option; +- atomic_long_t check_context_retarget_intr; +- atomic_long_t check_context_unload; +- atomic_long_t tlb_dropin; +- atomic_long_t tlb_preload_page; +- atomic_long_t tlb_dropin_fail_no_asid; +- atomic_long_t tlb_dropin_fail_upm; +- atomic_long_t tlb_dropin_fail_invalid; +- atomic_long_t tlb_dropin_fail_range_active; +- atomic_long_t tlb_dropin_fail_idle; +- atomic_long_t tlb_dropin_fail_fmm; +- atomic_long_t tlb_dropin_fail_no_exception; +- atomic_long_t tfh_stale_on_fault; +- atomic_long_t mmu_invalidate_range; +- atomic_long_t mmu_invalidate_page; +- atomic_long_t flush_tlb; +- atomic_long_t flush_tlb_gru; +- atomic_long_t flush_tlb_gru_tgh; +- atomic_long_t flush_tlb_gru_zero_asid; ++ atomic_long_unchecked_t vdata_alloc; ++ atomic_long_unchecked_t vdata_free; ++ atomic_long_unchecked_t gts_alloc; ++ atomic_long_unchecked_t gts_free; ++ atomic_long_unchecked_t gms_alloc; ++ atomic_long_unchecked_t gms_free; ++ atomic_long_unchecked_t gts_double_allocate; ++ atomic_long_unchecked_t assign_context; ++ atomic_long_unchecked_t assign_context_failed; ++ atomic_long_unchecked_t free_context; ++ atomic_long_unchecked_t load_user_context; ++ atomic_long_unchecked_t load_kernel_context; ++ atomic_long_unchecked_t lock_kernel_context; ++ atomic_long_unchecked_t unlock_kernel_context; ++ atomic_long_unchecked_t steal_user_context; ++ atomic_long_unchecked_t steal_kernel_context; ++ atomic_long_unchecked_t steal_context_failed; ++ atomic_long_unchecked_t nopfn; ++ atomic_long_unchecked_t asid_new; ++ atomic_long_unchecked_t asid_next; ++ atomic_long_unchecked_t asid_wrap; ++ atomic_long_unchecked_t asid_reuse; ++ atomic_long_unchecked_t intr; ++ atomic_long_unchecked_t intr_cbr; ++ atomic_long_unchecked_t intr_tfh; ++ atomic_long_unchecked_t intr_spurious; ++ atomic_long_unchecked_t intr_mm_lock_failed; ++ atomic_long_unchecked_t call_os; ++ atomic_long_unchecked_t call_os_wait_queue; ++ atomic_long_unchecked_t user_flush_tlb; ++ atomic_long_unchecked_t user_unload_context; ++ atomic_long_unchecked_t user_exception; ++ atomic_long_unchecked_t set_context_option; ++ atomic_long_unchecked_t check_context_retarget_intr; ++ atomic_long_unchecked_t check_context_unload; ++ atomic_long_unchecked_t tlb_dropin; ++ atomic_long_unchecked_t tlb_preload_page; ++ atomic_long_unchecked_t tlb_dropin_fail_no_asid; ++ atomic_long_unchecked_t tlb_dropin_fail_upm; ++ atomic_long_unchecked_t tlb_dropin_fail_invalid; ++ atomic_long_unchecked_t tlb_dropin_fail_range_active; ++ atomic_long_unchecked_t tlb_dropin_fail_idle; ++ atomic_long_unchecked_t tlb_dropin_fail_fmm; ++ atomic_long_unchecked_t tlb_dropin_fail_no_exception; ++ atomic_long_unchecked_t tfh_stale_on_fault; ++ atomic_long_unchecked_t mmu_invalidate_range; ++ atomic_long_unchecked_t mmu_invalidate_page; ++ atomic_long_unchecked_t flush_tlb; ++ atomic_long_unchecked_t flush_tlb_gru; ++ atomic_long_unchecked_t flush_tlb_gru_tgh; ++ atomic_long_unchecked_t flush_tlb_gru_zero_asid; + +- atomic_long_t copy_gpa; +- atomic_long_t read_gpa; ++ atomic_long_unchecked_t copy_gpa; ++ atomic_long_unchecked_t read_gpa; + +- atomic_long_t mesq_receive; +- atomic_long_t mesq_receive_none; +- atomic_long_t mesq_send; +- atomic_long_t mesq_send_failed; +- atomic_long_t mesq_noop; +- atomic_long_t mesq_send_unexpected_error; +- atomic_long_t mesq_send_lb_overflow; +- atomic_long_t mesq_send_qlimit_reached; +- atomic_long_t mesq_send_amo_nacked; +- atomic_long_t mesq_send_put_nacked; +- atomic_long_t mesq_page_overflow; +- atomic_long_t mesq_qf_locked; +- atomic_long_t mesq_qf_noop_not_full; +- atomic_long_t mesq_qf_switch_head_failed; +- atomic_long_t mesq_qf_unexpected_error; +- atomic_long_t mesq_noop_unexpected_error; +- atomic_long_t mesq_noop_lb_overflow; +- atomic_long_t mesq_noop_qlimit_reached; +- atomic_long_t mesq_noop_amo_nacked; +- atomic_long_t mesq_noop_put_nacked; +- atomic_long_t mesq_noop_page_overflow; ++ atomic_long_unchecked_t mesq_receive; ++ atomic_long_unchecked_t mesq_receive_none; ++ atomic_long_unchecked_t mesq_send; ++ atomic_long_unchecked_t mesq_send_failed; ++ atomic_long_unchecked_t mesq_noop; ++ atomic_long_unchecked_t mesq_send_unexpected_error; ++ atomic_long_unchecked_t mesq_send_lb_overflow; ++ atomic_long_unchecked_t mesq_send_qlimit_reached; ++ atomic_long_unchecked_t mesq_send_amo_nacked; ++ atomic_long_unchecked_t mesq_send_put_nacked; ++ atomic_long_unchecked_t mesq_page_overflow; ++ atomic_long_unchecked_t mesq_qf_locked; ++ atomic_long_unchecked_t mesq_qf_noop_not_full; ++ atomic_long_unchecked_t mesq_qf_switch_head_failed; ++ atomic_long_unchecked_t mesq_qf_unexpected_error; ++ atomic_long_unchecked_t mesq_noop_unexpected_error; ++ atomic_long_unchecked_t mesq_noop_lb_overflow; ++ atomic_long_unchecked_t mesq_noop_qlimit_reached; ++ atomic_long_unchecked_t mesq_noop_amo_nacked; ++ atomic_long_unchecked_t mesq_noop_put_nacked; ++ atomic_long_unchecked_t mesq_noop_page_overflow; + + }; + +@@ -251,8 +251,8 @@ enum mcs_op {cchop_allocate, cchop_start, cchop_interrupt, cchop_interrupt_sync, + tghop_invalidate, mcsop_last}; + + struct mcs_op_statistic { +- atomic_long_t count; +- atomic_long_t total; ++ atomic_long_unchecked_t count; ++ atomic_long_unchecked_t total; + unsigned long max; + }; + +@@ -275,7 +275,7 @@ extern struct mcs_op_statistic mcs_op_statistics[mcsop_last]; + + #define STAT(id) do { \ + if (gru_options & OPT_STATS) \ +- atomic_long_inc(&gru_stats.id); \ ++ atomic_long_inc_unchecked(&gru_stats.id); \ + } while (0) + + #ifdef CONFIG_SGI_GRU_DEBUG +diff --git a/drivers/misc/sgi-xp/xp.h b/drivers/misc/sgi-xp/xp.h +index c862cd4..0d176fe 100644 +--- a/drivers/misc/sgi-xp/xp.h ++++ b/drivers/misc/sgi-xp/xp.h +@@ -288,7 +288,7 @@ struct xpc_interface { + xpc_notify_func, void *); + void (*received) (short, int, void *); + enum xp_retval (*partid_to_nasids) (short, void *); +-}; ++} __no_const; + + extern struct xpc_interface xpc_interface; + +diff --git a/drivers/misc/sgi-xp/xpc.h b/drivers/misc/sgi-xp/xpc.h +index b94d5f7..7f494c5 100644 +--- a/drivers/misc/sgi-xp/xpc.h ++++ b/drivers/misc/sgi-xp/xpc.h +@@ -835,6 +835,7 @@ struct xpc_arch_operations { + void (*received_payload) (struct xpc_channel *, void *); + void (*notify_senders_of_disconnect) (struct xpc_channel *); + }; ++typedef struct xpc_arch_operations __no_const xpc_arch_operations_no_const; + + /* struct xpc_partition act_state values (for XPC HB) */ + +@@ -876,7 +877,7 @@ extern struct xpc_registration xpc_registrations[]; + /* found in xpc_main.c */ + extern struct device *xpc_part; + extern struct device *xpc_chan; +-extern struct xpc_arch_operations xpc_arch_ops; ++extern xpc_arch_operations_no_const xpc_arch_ops; + extern int xpc_disengage_timelimit; + extern int xpc_disengage_timedout; + extern int xpc_activate_IRQ_rcvd; +diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c +index 8d082b4..aa749ae 100644 +--- a/drivers/misc/sgi-xp/xpc_main.c ++++ b/drivers/misc/sgi-xp/xpc_main.c +@@ -162,7 +162,7 @@ static struct notifier_block xpc_die_notifier = { + .notifier_call = xpc_system_die, + }; + +-struct xpc_arch_operations xpc_arch_ops; ++xpc_arch_operations_no_const xpc_arch_ops; + + /* + * Timer function to enforce the timelimit on the partition disengage. +diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c +index 69ef0be..f3ef91e 100644 +--- a/drivers/mmc/host/sdhci-pci.c ++++ b/drivers/mmc/host/sdhci-pci.c +@@ -652,7 +652,7 @@ static const struct sdhci_pci_fixes sdhci_via = { + .probe = via_probe, + }; + +-static const struct pci_device_id pci_ids[] __devinitdata = { ++static const struct pci_device_id pci_ids[] __devinitconst = { + { + .vendor = PCI_VENDOR_ID_RICOH, + .device = PCI_DEVICE_ID_RICOH_R5C822, +diff --git a/drivers/mtd/devices/doc2000.c b/drivers/mtd/devices/doc2000.c +index a4eb8b5..8c0628f 100644 +--- a/drivers/mtd/devices/doc2000.c ++++ b/drivers/mtd/devices/doc2000.c +@@ -753,7 +753,7 @@ static int doc_write(struct mtd_info *mtd, loff_t to, size_t len, + + /* The ECC will not be calculated correctly if less than 512 is written */ + /* DBB- +- if (len != 0x200 && eccbuf) ++ if (len != 0x200) + printk(KERN_WARNING + "ECC needs a full sector write (adr: %lx size %lx)\n", + (long) to, (long) len); +diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c +index a9e57d6..c6d8731 100644 +--- a/drivers/mtd/nand/denali.c ++++ b/drivers/mtd/nand/denali.c +@@ -26,6 +26,7 @@ + #include <linux/pci.h> + #include <linux/mtd/mtd.h> + #include <linux/module.h> ++#include <linux/slab.h> + + #include "denali.h" + +diff --git a/drivers/mtd/nftlmount.c b/drivers/mtd/nftlmount.c +index 51b9d6a..52af9a7 100644 +--- a/drivers/mtd/nftlmount.c ++++ b/drivers/mtd/nftlmount.c +@@ -24,6 +24,7 @@ + #include <asm/errno.h> + #include <linux/delay.h> + #include <linux/slab.h> ++#include <linux/sched.h> + #include <linux/mtd/mtd.h> + #include <linux/mtd/nand.h> + #include <linux/mtd/nftl.h> +diff --git a/drivers/net/ethernet/atheros/atlx/atl2.c b/drivers/net/ethernet/atheros/atlx/atl2.c +index 6762dc4..9956862 100644 +--- a/drivers/net/ethernet/atheros/atlx/atl2.c ++++ b/drivers/net/ethernet/atheros/atlx/atl2.c +@@ -2859,7 +2859,7 @@ static void atl2_force_ps(struct atl2_hw *hw) + */ + + #define ATL2_PARAM(X, desc) \ +- static const int __devinitdata X[ATL2_MAX_NIC + 1] = ATL2_PARAM_INIT; \ ++ static const int __devinitconst X[ATL2_MAX_NIC + 1] = ATL2_PARAM_INIT; \ + MODULE_PARM(X, "1-" __MODULE_STRING(ATL2_MAX_NIC) "i"); \ + MODULE_PARM_DESC(X, desc); + #else +diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h +index 61a7670..7da6e34 100644 +--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h ++++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h +@@ -483,7 +483,7 @@ struct bnx2x_rx_mode_obj { + + int (*wait_comp)(struct bnx2x *bp, + struct bnx2x_rx_mode_ramrod_params *p); +-}; ++} __no_const; + + /********************** Set multicast group ***********************************/ + +diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h +index 93865f8..5448741 100644 +--- a/drivers/net/ethernet/broadcom/tg3.h ++++ b/drivers/net/ethernet/broadcom/tg3.h +@@ -140,6 +140,7 @@ + #define CHIPREV_ID_5750_A0 0x4000 + #define CHIPREV_ID_5750_A1 0x4001 + #define CHIPREV_ID_5750_A3 0x4003 ++#define CHIPREV_ID_5750_C1 0x4201 + #define CHIPREV_ID_5750_C2 0x4202 + #define CHIPREV_ID_5752_A0_HW 0x5000 + #define CHIPREV_ID_5752_A0 0x6000 +diff --git a/drivers/net/ethernet/chelsio/cxgb3/l2t.h b/drivers/net/ethernet/chelsio/cxgb3/l2t.h +index c4e8643..0979484 100644 +--- a/drivers/net/ethernet/chelsio/cxgb3/l2t.h ++++ b/drivers/net/ethernet/chelsio/cxgb3/l2t.h +@@ -87,7 +87,7 @@ typedef void (*arp_failure_handler_func)(struct t3cdev * dev, + */ + struct l2t_skb_cb { + arp_failure_handler_func arp_failure_handler; +-}; ++} __no_const; + + #define L2T_SKB_CB(skb) ((struct l2t_skb_cb *)(skb)->cb) + +diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c +index 18b106c..2b38d36 100644 +--- a/drivers/net/ethernet/dec/tulip/de4x5.c ++++ b/drivers/net/ethernet/dec/tulip/de4x5.c +@@ -5388,7 +5388,7 @@ de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) + for (i=0; i<ETH_ALEN; i++) { + tmp.addr[i] = dev->dev_addr[i]; + } +- if (copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT; ++ if (ioc->len > sizeof tmp.addr || copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT; + break; + + case DE4X5_SET_HWADDR: /* Set the hardware address */ +@@ -5428,7 +5428,7 @@ de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) + spin_lock_irqsave(&lp->lock, flags); + memcpy(&statbuf, &lp->pktStats, ioc->len); + spin_unlock_irqrestore(&lp->lock, flags); +- if (copy_to_user(ioc->data, &statbuf, ioc->len)) ++ if (ioc->len > sizeof statbuf || copy_to_user(ioc->data, &statbuf, ioc->len)) + return -EFAULT; + break; + } +diff --git a/drivers/net/ethernet/dec/tulip/eeprom.c b/drivers/net/ethernet/dec/tulip/eeprom.c +index ed7d1dc..d426748 100644 +--- a/drivers/net/ethernet/dec/tulip/eeprom.c ++++ b/drivers/net/ethernet/dec/tulip/eeprom.c +@@ -79,7 +79,7 @@ static struct eeprom_fixup eeprom_fixups[] __devinitdata = { + {NULL}}; + + +-static const char *block_name[] __devinitdata = { ++static const char *block_name[] __devinitconst = { + "21140 non-MII", + "21140 MII PHY", + "21142 Serial PHY", +diff --git a/drivers/net/ethernet/dec/tulip/winbond-840.c b/drivers/net/ethernet/dec/tulip/winbond-840.c +index 2ac6fff..2d127d0 100644 +--- a/drivers/net/ethernet/dec/tulip/winbond-840.c ++++ b/drivers/net/ethernet/dec/tulip/winbond-840.c +@@ -236,7 +236,7 @@ struct pci_id_info { + int drv_flags; /* Driver use, intended as capability flags. */ + }; + +-static const struct pci_id_info pci_id_tbl[] __devinitdata = { ++static const struct pci_id_info pci_id_tbl[] __devinitconst = { + { /* Sometime a Level-One switch card. */ + "Winbond W89c840", CanHaveMII | HasBrokenTx | FDXOnNoMII}, + { "Winbond W89c840", CanHaveMII | HasBrokenTx}, +diff --git a/drivers/net/ethernet/dlink/sundance.c b/drivers/net/ethernet/dlink/sundance.c +index d783f4f..97fa1b0 100644 +--- a/drivers/net/ethernet/dlink/sundance.c ++++ b/drivers/net/ethernet/dlink/sundance.c +@@ -218,7 +218,7 @@ enum { + struct pci_id_info { + const char *name; + }; +-static const struct pci_id_info pci_id_tbl[] __devinitdata = { ++static const struct pci_id_info pci_id_tbl[] __devinitconst = { + {"D-Link DFE-550TX FAST Ethernet Adapter"}, + {"D-Link DFE-550FX 100Mbps Fiber-optics Adapter"}, + {"D-Link DFE-580TX 4 port Server Adapter"}, +diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c +index 1bbf6b3..430dcd0 100644 +--- a/drivers/net/ethernet/emulex/benet/be_main.c ++++ b/drivers/net/ethernet/emulex/benet/be_main.c +@@ -403,7 +403,7 @@ static void accumulate_16bit_val(u32 *acc, u16 val) + + if (wrapped) + newacc += 65536; +- ACCESS_ONCE(*acc) = newacc; ++ ACCESS_ONCE_RW(*acc) = newacc; + } + + void be_parse_stats(struct be_adapter *adapter) +diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c +index 16b0704..d2c07d7 100644 +--- a/drivers/net/ethernet/faraday/ftgmac100.c ++++ b/drivers/net/ethernet/faraday/ftgmac100.c +@@ -31,6 +31,8 @@ + #include <linux/netdevice.h> + #include <linux/phy.h> + #include <linux/platform_device.h> ++#include <linux/interrupt.h> ++#include <linux/irqreturn.h> + #include <net/ip.h> + + #include "ftgmac100.h" +diff --git a/drivers/net/ethernet/faraday/ftmac100.c b/drivers/net/ethernet/faraday/ftmac100.c +index 829b109..4ae5f6a 100644 +--- a/drivers/net/ethernet/faraday/ftmac100.c ++++ b/drivers/net/ethernet/faraday/ftmac100.c +@@ -31,6 +31,8 @@ + #include <linux/module.h> + #include <linux/netdevice.h> + #include <linux/platform_device.h> ++#include <linux/interrupt.h> ++#include <linux/irqreturn.h> + + #include "ftmac100.h" + +diff --git a/drivers/net/ethernet/fealnx.c b/drivers/net/ethernet/fealnx.c +index 1637b98..c42f87b 100644 +--- a/drivers/net/ethernet/fealnx.c ++++ b/drivers/net/ethernet/fealnx.c +@@ -150,7 +150,7 @@ struct chip_info { + int flags; + }; + +-static const struct chip_info skel_netdrv_tbl[] __devinitdata = { ++static const struct chip_info skel_netdrv_tbl[] __devinitconst = { + { "100/10M Ethernet PCI Adapter", HAS_MII_XCVR }, + { "100/10M Ethernet PCI Adapter", HAS_CHIP_XCVR }, + { "1000/100/10M Ethernet PCI Adapter", HAS_MII_XCVR }, +diff --git a/drivers/net/ethernet/intel/e1000e/e1000.h b/drivers/net/ethernet/intel/e1000e/e1000.h +index b83897f..b2d970f 100644 +--- a/drivers/net/ethernet/intel/e1000e/e1000.h ++++ b/drivers/net/ethernet/intel/e1000e/e1000.h +@@ -181,7 +181,7 @@ struct e1000_info; + #define E1000_TXDCTL_DMA_BURST_ENABLE \ + (E1000_TXDCTL_GRAN | /* set descriptor granularity */ \ + E1000_TXDCTL_COUNT_DESC | \ +- (5 << 16) | /* wthresh must be +1 more than desired */\ ++ (1 << 16) | /* wthresh must be +1 more than desired */\ + (1 << 8) | /* hthresh */ \ + 0x1f) /* pthresh */ + +diff --git a/drivers/net/ethernet/intel/e1000e/hw.h b/drivers/net/ethernet/intel/e1000e/hw.h +index f82ecf5..7d59ecb 100644 +--- a/drivers/net/ethernet/intel/e1000e/hw.h ++++ b/drivers/net/ethernet/intel/e1000e/hw.h +@@ -784,6 +784,7 @@ struct e1000_mac_operations { + void (*config_collision_dist)(struct e1000_hw *); + s32 (*read_mac_addr)(struct e1000_hw *); + }; ++typedef struct e1000_mac_operations __no_const e1000_mac_operations_no_const; + + /* + * When to use various PHY register access functions: +@@ -824,6 +825,7 @@ struct e1000_phy_operations { + void (*power_up)(struct e1000_hw *); + void (*power_down)(struct e1000_hw *); + }; ++typedef struct e1000_phy_operations __no_const e1000_phy_operations_no_const; + + /* Function pointers for the NVM. */ + struct e1000_nvm_operations { +@@ -836,9 +838,10 @@ struct e1000_nvm_operations { + s32 (*validate)(struct e1000_hw *); + s32 (*write)(struct e1000_hw *, u16, u16, u16 *); + }; ++typedef struct e1000_nvm_operations __no_const e1000_nvm_operations_no_const; + + struct e1000_mac_info { +- struct e1000_mac_operations ops; ++ e1000_mac_operations_no_const ops; + u8 addr[ETH_ALEN]; + u8 perm_addr[ETH_ALEN]; + +@@ -879,7 +882,7 @@ struct e1000_mac_info { + }; + + struct e1000_phy_info { +- struct e1000_phy_operations ops; ++ e1000_phy_operations_no_const ops; + + enum e1000_phy_type type; + +@@ -913,7 +916,7 @@ struct e1000_phy_info { + }; + + struct e1000_nvm_info { +- struct e1000_nvm_operations ops; ++ e1000_nvm_operations_no_const ops; + + enum e1000_nvm_type type; + enum e1000_nvm_override override; +diff --git a/drivers/net/ethernet/intel/igb/e1000_hw.h b/drivers/net/ethernet/intel/igb/e1000_hw.h +index f67cbd3..cef9e3d 100644 +--- a/drivers/net/ethernet/intel/igb/e1000_hw.h ++++ b/drivers/net/ethernet/intel/igb/e1000_hw.h +@@ -314,6 +314,7 @@ struct e1000_mac_operations { + s32 (*read_mac_addr)(struct e1000_hw *); + s32 (*get_speed_and_duplex)(struct e1000_hw *, u16 *, u16 *); + }; ++typedef struct e1000_mac_operations __no_const e1000_mac_operations_no_const; + + struct e1000_phy_operations { + s32 (*acquire)(struct e1000_hw *); +@@ -330,6 +331,7 @@ struct e1000_phy_operations { + s32 (*set_d3_lplu_state)(struct e1000_hw *, bool); + s32 (*write_reg)(struct e1000_hw *, u32, u16); + }; ++typedef struct e1000_phy_operations __no_const e1000_phy_operations_no_const; + + struct e1000_nvm_operations { + s32 (*acquire)(struct e1000_hw *); +@@ -339,6 +341,7 @@ struct e1000_nvm_operations { + s32 (*update)(struct e1000_hw *); + s32 (*validate)(struct e1000_hw *); + }; ++typedef struct e1000_nvm_operations __no_const e1000_nvm_operations_no_const; + + struct e1000_info { + s32 (*get_invariants)(struct e1000_hw *); +@@ -350,7 +353,7 @@ struct e1000_info { + extern const struct e1000_info e1000_82575_info; + + struct e1000_mac_info { +- struct e1000_mac_operations ops; ++ e1000_mac_operations_no_const ops; + + u8 addr[6]; + u8 perm_addr[6]; +@@ -388,7 +391,7 @@ struct e1000_mac_info { + }; + + struct e1000_phy_info { +- struct e1000_phy_operations ops; ++ e1000_phy_operations_no_const ops; + + enum e1000_phy_type type; + +@@ -423,7 +426,7 @@ struct e1000_phy_info { + }; + + struct e1000_nvm_info { +- struct e1000_nvm_operations ops; ++ e1000_nvm_operations_no_const ops; + enum e1000_nvm_type type; + enum e1000_nvm_override override; + +@@ -468,6 +471,7 @@ struct e1000_mbx_operations { + s32 (*check_for_ack)(struct e1000_hw *, u16); + s32 (*check_for_rst)(struct e1000_hw *, u16); + }; ++typedef struct e1000_mbx_operations __no_const e1000_mbx_operations_no_const; + + struct e1000_mbx_stats { + u32 msgs_tx; +@@ -479,7 +483,7 @@ struct e1000_mbx_stats { + }; + + struct e1000_mbx_info { +- struct e1000_mbx_operations ops; ++ e1000_mbx_operations_no_const ops; + struct e1000_mbx_stats stats; + u32 timeout; + u32 usec_delay; +diff --git a/drivers/net/ethernet/intel/igbvf/vf.h b/drivers/net/ethernet/intel/igbvf/vf.h +index 57db3c6..aa825fc 100644 +--- a/drivers/net/ethernet/intel/igbvf/vf.h ++++ b/drivers/net/ethernet/intel/igbvf/vf.h +@@ -189,9 +189,10 @@ struct e1000_mac_operations { + s32 (*read_mac_addr)(struct e1000_hw *); + s32 (*set_vfta)(struct e1000_hw *, u16, bool); + }; ++typedef struct e1000_mac_operations __no_const e1000_mac_operations_no_const; + + struct e1000_mac_info { +- struct e1000_mac_operations ops; ++ e1000_mac_operations_no_const ops; + u8 addr[6]; + u8 perm_addr[6]; + +@@ -213,6 +214,7 @@ struct e1000_mbx_operations { + s32 (*check_for_ack)(struct e1000_hw *); + s32 (*check_for_rst)(struct e1000_hw *); + }; ++typedef struct e1000_mbx_operations __no_const e1000_mbx_operations_no_const; + + struct e1000_mbx_stats { + u32 msgs_tx; +@@ -224,7 +226,7 @@ struct e1000_mbx_stats { + }; + + struct e1000_mbx_info { +- struct e1000_mbx_operations ops; ++ e1000_mbx_operations_no_const ops; + struct e1000_mbx_stats stats; + u32 timeout; + u32 usec_delay; +diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h +index 8636e83..ab9bbc3 100644 +--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h ++++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h +@@ -2710,6 +2710,7 @@ struct ixgbe_eeprom_operations { + s32 (*update_checksum)(struct ixgbe_hw *); + u16 (*calc_checksum)(struct ixgbe_hw *); + }; ++typedef struct ixgbe_eeprom_operations __no_const ixgbe_eeprom_operations_no_const; + + struct ixgbe_mac_operations { + s32 (*init_hw)(struct ixgbe_hw *); +@@ -2773,6 +2774,7 @@ struct ixgbe_mac_operations { + /* Manageability interface */ + s32 (*set_fw_drv_ver)(struct ixgbe_hw *, u8, u8, u8, u8); + }; ++typedef struct ixgbe_mac_operations __no_const ixgbe_mac_operations_no_const; + + struct ixgbe_phy_operations { + s32 (*identify)(struct ixgbe_hw *); +@@ -2792,9 +2794,10 @@ struct ixgbe_phy_operations { + s32 (*write_i2c_eeprom)(struct ixgbe_hw *, u8, u8); + s32 (*check_overtemp)(struct ixgbe_hw *); + }; ++typedef struct ixgbe_phy_operations __no_const ixgbe_phy_operations_no_const; + + struct ixgbe_eeprom_info { +- struct ixgbe_eeprom_operations ops; ++ ixgbe_eeprom_operations_no_const ops; + enum ixgbe_eeprom_type type; + u32 semaphore_delay; + u16 word_size; +@@ -2804,7 +2807,7 @@ struct ixgbe_eeprom_info { + + #define IXGBE_FLAGS_DOUBLE_RESET_REQUIRED 0x01 + struct ixgbe_mac_info { +- struct ixgbe_mac_operations ops; ++ ixgbe_mac_operations_no_const ops; + enum ixgbe_mac_type type; + u8 addr[ETH_ALEN]; + u8 perm_addr[ETH_ALEN]; +@@ -2832,7 +2835,7 @@ struct ixgbe_mac_info { + }; + + struct ixgbe_phy_info { +- struct ixgbe_phy_operations ops; ++ ixgbe_phy_operations_no_const ops; + struct mdio_if_info mdio; + enum ixgbe_phy_type type; + u32 id; +@@ -2860,6 +2863,7 @@ struct ixgbe_mbx_operations { + s32 (*check_for_ack)(struct ixgbe_hw *, u16); + s32 (*check_for_rst)(struct ixgbe_hw *, u16); + }; ++typedef struct ixgbe_mbx_operations __no_const ixgbe_mbx_operations_no_const; + + struct ixgbe_mbx_stats { + u32 msgs_tx; +@@ -2871,7 +2875,7 @@ struct ixgbe_mbx_stats { + }; + + struct ixgbe_mbx_info { +- struct ixgbe_mbx_operations ops; ++ ixgbe_mbx_operations_no_const ops; + struct ixgbe_mbx_stats stats; + u32 timeout; + u32 usec_delay; +diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c +index 307611a..d8e4562 100644 +--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c ++++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c +@@ -969,8 +969,6 @@ static irqreturn_t ixgbevf_msix_clean_tx(int irq, void *data) + r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues); + for (i = 0; i < q_vector->txr_count; i++) { + tx_ring = &(adapter->tx_ring[r_idx]); +- tx_ring->total_bytes = 0; +- tx_ring->total_packets = 0; + ixgbevf_clean_tx_irq(adapter, tx_ring); + r_idx = find_next_bit(q_vector->txr_idx, adapter->num_tx_queues, + r_idx + 1); +@@ -994,16 +992,6 @@ static irqreturn_t ixgbevf_msix_clean_rx(int irq, void *data) + struct ixgbe_hw *hw = &adapter->hw; + struct ixgbevf_ring *rx_ring; + int r_idx; +- int i; +- +- r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); +- for (i = 0; i < q_vector->rxr_count; i++) { +- rx_ring = &(adapter->rx_ring[r_idx]); +- rx_ring->total_bytes = 0; +- rx_ring->total_packets = 0; +- r_idx = find_next_bit(q_vector->rxr_idx, adapter->num_rx_queues, +- r_idx + 1); +- } + + if (!q_vector->rxr_count) + return IRQ_HANDLED; +diff --git a/drivers/net/ethernet/intel/ixgbevf/vf.h b/drivers/net/ethernet/intel/ixgbevf/vf.h +index 25c951d..cc7cf33 100644 +--- a/drivers/net/ethernet/intel/ixgbevf/vf.h ++++ b/drivers/net/ethernet/intel/ixgbevf/vf.h +@@ -70,6 +70,7 @@ struct ixgbe_mac_operations { + s32 (*clear_vfta)(struct ixgbe_hw *); + s32 (*set_vfta)(struct ixgbe_hw *, u32, u32, bool); + }; ++typedef struct ixgbe_mac_operations __no_const ixgbe_mac_operations_no_const; + + enum ixgbe_mac_type { + ixgbe_mac_unknown = 0, +@@ -79,7 +80,7 @@ enum ixgbe_mac_type { + }; + + struct ixgbe_mac_info { +- struct ixgbe_mac_operations ops; ++ ixgbe_mac_operations_no_const ops; + u8 addr[6]; + u8 perm_addr[6]; + +@@ -103,6 +104,7 @@ struct ixgbe_mbx_operations { + s32 (*check_for_ack)(struct ixgbe_hw *); + s32 (*check_for_rst)(struct ixgbe_hw *); + }; ++typedef struct ixgbe_mbx_operations __no_const ixgbe_mbx_operations_no_const; + + struct ixgbe_mbx_stats { + u32 msgs_tx; +@@ -114,7 +116,7 @@ struct ixgbe_mbx_stats { + }; + + struct ixgbe_mbx_info { +- struct ixgbe_mbx_operations ops; ++ ixgbe_mbx_operations_no_const ops; + struct ixgbe_mbx_stats stats; + u32 timeout; + u32 udelay; +diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c +index 8bb05b4..074796f 100644 +--- a/drivers/net/ethernet/mellanox/mlx4/main.c ++++ b/drivers/net/ethernet/mellanox/mlx4/main.c +@@ -41,6 +41,7 @@ + #include <linux/slab.h> + #include <linux/io-mapping.h> + #include <linux/delay.h> ++#include <linux/sched.h> + + #include <linux/mlx4/device.h> + #include <linux/mlx4/doorbell.h> +diff --git a/drivers/net/ethernet/neterion/vxge/vxge-config.h b/drivers/net/ethernet/neterion/vxge/vxge-config.h +index 5046a64..71ca936 100644 +--- a/drivers/net/ethernet/neterion/vxge/vxge-config.h ++++ b/drivers/net/ethernet/neterion/vxge/vxge-config.h +@@ -514,7 +514,7 @@ struct vxge_hw_uld_cbs { + void (*link_down)(struct __vxge_hw_device *devh); + void (*crit_err)(struct __vxge_hw_device *devh, + enum vxge_hw_event type, u64 ext_data); +-}; ++} __no_const; + + /* + * struct __vxge_hw_blockpool_entry - Block private data structure +diff --git a/drivers/net/ethernet/neterion/vxge/vxge-traffic.h b/drivers/net/ethernet/neterion/vxge/vxge-traffic.h +index 4a518a3..936b334 100644 +--- a/drivers/net/ethernet/neterion/vxge/vxge-traffic.h ++++ b/drivers/net/ethernet/neterion/vxge/vxge-traffic.h +@@ -2088,7 +2088,7 @@ struct vxge_hw_mempool_cbs { + struct vxge_hw_mempool_dma *dma_object, + u32 index, + u32 is_last); +-}; ++} __no_const; + + #define VXGE_HW_VIRTUAL_PATH_HANDLE(vpath) \ + ((struct __vxge_hw_vpath_handle *)(vpath)->vpath_handles.next) +diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c +index 161e045..0bb5b86 100644 +--- a/drivers/net/ethernet/realtek/r8169.c ++++ b/drivers/net/ethernet/realtek/r8169.c +@@ -708,17 +708,17 @@ struct rtl8169_private { + struct mdio_ops { + void (*write)(void __iomem *, int, int); + int (*read)(void __iomem *, int); +- } mdio_ops; ++ } __no_const mdio_ops; + + struct pll_power_ops { + void (*down)(struct rtl8169_private *); + void (*up)(struct rtl8169_private *); +- } pll_power_ops; ++ } __no_const pll_power_ops; + + struct jumbo_ops { + void (*enable)(struct rtl8169_private *); + void (*disable)(struct rtl8169_private *); +- } jumbo_ops; ++ } __no_const jumbo_ops; + + int (*set_speed)(struct net_device *, u8 aneg, u16 sp, u8 dpx, u32 adv); + int (*get_settings)(struct net_device *, struct ethtool_cmd *); +diff --git a/drivers/net/ethernet/sis/sis190.c b/drivers/net/ethernet/sis/sis190.c +index a9deda8..5507c31 100644 +--- a/drivers/net/ethernet/sis/sis190.c ++++ b/drivers/net/ethernet/sis/sis190.c +@@ -1620,7 +1620,7 @@ static int __devinit sis190_get_mac_addr_from_eeprom(struct pci_dev *pdev, + static int __devinit sis190_get_mac_addr_from_apc(struct pci_dev *pdev, + struct net_device *dev) + { +- static const u16 __devinitdata ids[] = { 0x0965, 0x0966, 0x0968 }; ++ static const u16 __devinitconst ids[] = { 0x0965, 0x0966, 0x0968 }; + struct sis190_private *tp = netdev_priv(dev); + struct pci_dev *isa_bridge; + u8 reg, tmp8; +diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c +index c07cfe9..81cbf7e 100644 +--- a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c ++++ b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c +@@ -140,8 +140,8 @@ void dwmac_mmc_ctrl(void __iomem *ioaddr, unsigned int mode) + + writel(value, ioaddr + MMC_CNTRL); + +- pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n", +- MMC_CNTRL, value); ++// pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n", ++// MMC_CNTRL, value); + } + + /* To mask all all interrupts.*/ +diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +index 9bdfaba..3d8f8d4 100644 +--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c ++++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +@@ -1587,7 +1587,7 @@ static const struct file_operations stmmac_rings_status_fops = { + .open = stmmac_sysfs_ring_open, + .read = seq_read, + .llseek = seq_lseek, +- .release = seq_release, ++ .release = single_release, + }; + + static int stmmac_sysfs_dma_cap_read(struct seq_file *seq, void *v) +@@ -1659,7 +1659,7 @@ static const struct file_operations stmmac_dma_cap_fops = { + .open = stmmac_sysfs_dma_cap_open, + .read = seq_read, + .llseek = seq_lseek, +- .release = seq_release, ++ .release = single_release, + }; + + static int stmmac_init_fs(struct net_device *dev) +diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h +index c358245..8c1de63 100644 +--- a/drivers/net/hyperv/hyperv_net.h ++++ b/drivers/net/hyperv/hyperv_net.h +@@ -98,7 +98,7 @@ struct rndis_device { + + enum rndis_device_state state; + bool link_state; +- atomic_t new_req_id; ++ atomic_unchecked_t new_req_id; + + spinlock_t request_lock; + struct list_head req_list; +diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c +index d6be64b..5d97e3b 100644 +--- a/drivers/net/hyperv/rndis_filter.c ++++ b/drivers/net/hyperv/rndis_filter.c +@@ -97,7 +97,7 @@ static struct rndis_request *get_rndis_request(struct rndis_device *dev, + * template + */ + set = &rndis_msg->msg.set_req; +- set->req_id = atomic_inc_return(&dev->new_req_id); ++ set->req_id = atomic_inc_return_unchecked(&dev->new_req_id); + + /* Add to the request list */ + spin_lock_irqsave(&dev->request_lock, flags); +@@ -648,7 +648,7 @@ static void rndis_filter_halt_device(struct rndis_device *dev) + + /* Setup the rndis set */ + halt = &request->request_msg.msg.halt_req; +- halt->req_id = atomic_inc_return(&dev->new_req_id); ++ halt->req_id = atomic_inc_return_unchecked(&dev->new_req_id); + + /* Ignore return since this msg is optional. */ + rndis_filter_send_request(dev, request); +diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c +index 21d7151..8034208 100644 +--- a/drivers/net/ppp/ppp_generic.c ++++ b/drivers/net/ppp/ppp_generic.c +@@ -986,7 +986,6 @@ ppp_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) + void __user *addr = (void __user *) ifr->ifr_ifru.ifru_data; + struct ppp_stats stats; + struct ppp_comp_stats cstats; +- char *vers; + + switch (cmd) { + case SIOCGPPPSTATS: +@@ -1008,8 +1007,7 @@ ppp_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) + break; + + case SIOCGPPPVER: +- vers = PPP_VERSION; +- if (copy_to_user(addr, vers, strlen(vers) + 1)) ++ if (copy_to_user(addr, PPP_VERSION, sizeof(PPP_VERSION))) + break; + err = 0; + break; +diff --git a/drivers/net/tokenring/abyss.c b/drivers/net/tokenring/abyss.c +index b715e6b..6d2490f 100644 +--- a/drivers/net/tokenring/abyss.c ++++ b/drivers/net/tokenring/abyss.c +@@ -450,10 +450,12 @@ static struct pci_driver abyss_driver = { + + static int __init abyss_init (void) + { +- abyss_netdev_ops = tms380tr_netdev_ops; ++ pax_open_kernel(); ++ memcpy((void *)&abyss_netdev_ops, &tms380tr_netdev_ops, sizeof(tms380tr_netdev_ops)); + +- abyss_netdev_ops.ndo_open = abyss_open; +- abyss_netdev_ops.ndo_stop = abyss_close; ++ *(void **)&abyss_netdev_ops.ndo_open = abyss_open; ++ *(void **)&abyss_netdev_ops.ndo_stop = abyss_close; ++ pax_close_kernel(); + + return pci_register_driver(&abyss_driver); + } +diff --git a/drivers/net/tokenring/madgemc.c b/drivers/net/tokenring/madgemc.c +index 28adcdf..ae82f35 100644 +--- a/drivers/net/tokenring/madgemc.c ++++ b/drivers/net/tokenring/madgemc.c +@@ -742,9 +742,11 @@ static struct mca_driver madgemc_driver = { + + static int __init madgemc_init (void) + { +- madgemc_netdev_ops = tms380tr_netdev_ops; +- madgemc_netdev_ops.ndo_open = madgemc_open; +- madgemc_netdev_ops.ndo_stop = madgemc_close; ++ pax_open_kernel(); ++ memcpy((void *)&madgemc_netdev_ops, &tms380tr_netdev_ops, sizeof(tms380tr_netdev_ops)); ++ *(void **)&madgemc_netdev_ops.ndo_open = madgemc_open; ++ *(void **)&madgemc_netdev_ops.ndo_stop = madgemc_close; ++ pax_close_kernel(); + + return mca_register_driver (&madgemc_driver); + } +diff --git a/drivers/net/tokenring/proteon.c b/drivers/net/tokenring/proteon.c +index 62d90e4..9d84237 100644 +--- a/drivers/net/tokenring/proteon.c ++++ b/drivers/net/tokenring/proteon.c +@@ -352,9 +352,11 @@ static int __init proteon_init(void) + struct platform_device *pdev; + int i, num = 0, err = 0; + +- proteon_netdev_ops = tms380tr_netdev_ops; +- proteon_netdev_ops.ndo_open = proteon_open; +- proteon_netdev_ops.ndo_stop = tms380tr_close; ++ pax_open_kernel(); ++ memcpy((void *)&proteon_netdev_ops, &tms380tr_netdev_ops, sizeof(tms380tr_netdev_ops)); ++ *(void **)&proteon_netdev_ops.ndo_open = proteon_open; ++ *(void **)&proteon_netdev_ops.ndo_stop = tms380tr_close; ++ pax_close_kernel(); + + err = platform_driver_register(&proteon_driver); + if (err) +diff --git a/drivers/net/tokenring/skisa.c b/drivers/net/tokenring/skisa.c +index ee11e93..c8f19c7 100644 +--- a/drivers/net/tokenring/skisa.c ++++ b/drivers/net/tokenring/skisa.c +@@ -362,9 +362,11 @@ static int __init sk_isa_init(void) + struct platform_device *pdev; + int i, num = 0, err = 0; + +- sk_isa_netdev_ops = tms380tr_netdev_ops; +- sk_isa_netdev_ops.ndo_open = sk_isa_open; +- sk_isa_netdev_ops.ndo_stop = tms380tr_close; ++ pax_open_kernel(); ++ memcpy((void *)&sk_isa_netdev_ops, &tms380tr_netdev_ops, sizeof(tms380tr_netdev_ops)); ++ *(void **)&sk_isa_netdev_ops.ndo_open = sk_isa_open; ++ *(void **)&sk_isa_netdev_ops.ndo_stop = tms380tr_close; ++ pax_close_kernel(); + + err = platform_driver_register(&sk_isa_driver); + if (err) +diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c +index 2d2a688..35f2372 100644 +--- a/drivers/net/usb/hso.c ++++ b/drivers/net/usb/hso.c +@@ -71,7 +71,7 @@ + #include <asm/byteorder.h> + #include <linux/serial_core.h> + #include <linux/serial.h> +- ++#include <asm/local.h> + + #define MOD_AUTHOR "Option Wireless" + #define MOD_DESCRIPTION "USB High Speed Option driver" +@@ -257,7 +257,7 @@ struct hso_serial { + + /* from usb_serial_port */ + struct tty_struct *tty; +- int open_count; ++ local_t open_count; + spinlock_t serial_lock; + + int (*write_data) (struct hso_serial *serial); +@@ -1190,7 +1190,7 @@ static void put_rxbuf_data_and_resubmit_ctrl_urb(struct hso_serial *serial) + struct urb *urb; + + urb = serial->rx_urb[0]; +- if (serial->open_count > 0) { ++ if (local_read(&serial->open_count) > 0) { + count = put_rxbuf_data(urb, serial); + if (count == -1) + return; +@@ -1226,7 +1226,7 @@ static void hso_std_serial_read_bulk_callback(struct urb *urb) + DUMP1(urb->transfer_buffer, urb->actual_length); + + /* Anyone listening? */ +- if (serial->open_count == 0) ++ if (local_read(&serial->open_count) == 0) + return; + + if (status == 0) { +@@ -1311,8 +1311,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp) + spin_unlock_irq(&serial->serial_lock); + + /* check for port already opened, if not set the termios */ +- serial->open_count++; +- if (serial->open_count == 1) { ++ if (local_inc_return(&serial->open_count) == 1) { + serial->rx_state = RX_IDLE; + /* Force default termio settings */ + _hso_serial_set_termios(tty, NULL); +@@ -1324,7 +1323,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp) + result = hso_start_serial_device(serial->parent, GFP_KERNEL); + if (result) { + hso_stop_serial_device(serial->parent); +- serial->open_count--; ++ local_dec(&serial->open_count); + kref_put(&serial->parent->ref, hso_serial_ref_free); + } + } else { +@@ -1361,10 +1360,10 @@ static void hso_serial_close(struct tty_struct *tty, struct file *filp) + + /* reset the rts and dtr */ + /* do the actual close */ +- serial->open_count--; ++ local_dec(&serial->open_count); + +- if (serial->open_count <= 0) { +- serial->open_count = 0; ++ if (local_read(&serial->open_count) <= 0) { ++ local_set(&serial->open_count, 0); + spin_lock_irq(&serial->serial_lock); + if (serial->tty == tty) { + serial->tty->driver_data = NULL; +@@ -1446,7 +1445,7 @@ static void hso_serial_set_termios(struct tty_struct *tty, struct ktermios *old) + + /* the actual setup */ + spin_lock_irqsave(&serial->serial_lock, flags); +- if (serial->open_count) ++ if (local_read(&serial->open_count)) + _hso_serial_set_termios(tty, old); + else + tty->termios = old; +@@ -1905,7 +1904,7 @@ static void intr_callback(struct urb *urb) + D1("Pending read interrupt on port %d\n", i); + spin_lock(&serial->serial_lock); + if (serial->rx_state == RX_IDLE && +- serial->open_count > 0) { ++ local_read(&serial->open_count) > 0) { + /* Setup and send a ctrl req read on + * port i */ + if (!serial->rx_urb_filled[0]) { +@@ -3098,7 +3097,7 @@ static int hso_resume(struct usb_interface *iface) + /* Start all serial ports */ + for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) { + if (serial_table[i] && (serial_table[i]->interface == iface)) { +- if (dev2ser(serial_table[i])->open_count) { ++ if (local_read(&dev2ser(serial_table[i])->open_count)) { + result = + hso_start_serial_device(serial_table[i], GFP_NOIO); + hso_kick_transmit(dev2ser(serial_table[i])); +diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h +index 420d69b..74f90a2 100644 +--- a/drivers/net/wireless/ath/ath.h ++++ b/drivers/net/wireless/ath/ath.h +@@ -119,6 +119,7 @@ struct ath_ops { + void (*write_flush) (void *); + u32 (*rmw)(void *, u32 reg_offset, u32 set, u32 clr); + }; ++typedef struct ath_ops __no_const ath_ops_no_const; + + struct ath_common; + struct ath_bus_ops; +diff --git a/drivers/net/wireless/ath/ath9k/ar9002_mac.c b/drivers/net/wireless/ath/ath9k/ar9002_mac.c +index aa2abaf..5f5152d 100644 +--- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c ++++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c +@@ -183,8 +183,8 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i) + ads->ds_txstatus6 = ads->ds_txstatus7 = 0; + ads->ds_txstatus8 = ads->ds_txstatus9 = 0; + +- ACCESS_ONCE(ads->ds_link) = i->link; +- ACCESS_ONCE(ads->ds_data) = i->buf_addr[0]; ++ ACCESS_ONCE_RW(ads->ds_link) = i->link; ++ ACCESS_ONCE_RW(ads->ds_data) = i->buf_addr[0]; + + ctl1 = i->buf_len[0] | (i->is_last ? 0 : AR_TxMore); + ctl6 = SM(i->keytype, AR_EncrType); +@@ -198,26 +198,26 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i) + + if ((i->is_first || i->is_last) && + i->aggr != AGGR_BUF_MIDDLE && i->aggr != AGGR_BUF_LAST) { +- ACCESS_ONCE(ads->ds_ctl2) = set11nTries(i->rates, 0) ++ ACCESS_ONCE_RW(ads->ds_ctl2) = set11nTries(i->rates, 0) + | set11nTries(i->rates, 1) + | set11nTries(i->rates, 2) + | set11nTries(i->rates, 3) + | (i->dur_update ? AR_DurUpdateEna : 0) + | SM(0, AR_BurstDur); + +- ACCESS_ONCE(ads->ds_ctl3) = set11nRate(i->rates, 0) ++ ACCESS_ONCE_RW(ads->ds_ctl3) = set11nRate(i->rates, 0) + | set11nRate(i->rates, 1) + | set11nRate(i->rates, 2) + | set11nRate(i->rates, 3); + } else { +- ACCESS_ONCE(ads->ds_ctl2) = 0; +- ACCESS_ONCE(ads->ds_ctl3) = 0; ++ ACCESS_ONCE_RW(ads->ds_ctl2) = 0; ++ ACCESS_ONCE_RW(ads->ds_ctl3) = 0; + } + + if (!i->is_first) { +- ACCESS_ONCE(ads->ds_ctl0) = 0; +- ACCESS_ONCE(ads->ds_ctl1) = ctl1; +- ACCESS_ONCE(ads->ds_ctl6) = ctl6; ++ ACCESS_ONCE_RW(ads->ds_ctl0) = 0; ++ ACCESS_ONCE_RW(ads->ds_ctl1) = ctl1; ++ ACCESS_ONCE_RW(ads->ds_ctl6) = ctl6; + return; + } + +@@ -242,7 +242,7 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i) + break; + } + +- ACCESS_ONCE(ads->ds_ctl0) = (i->pkt_len & AR_FrameLen) ++ ACCESS_ONCE_RW(ads->ds_ctl0) = (i->pkt_len & AR_FrameLen) + | (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0) + | SM(i->txpower, AR_XmitPower) + | (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0) +@@ -252,19 +252,19 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i) + | (i->flags & ATH9K_TXDESC_RTSENA ? AR_RTSEnable : + (i->flags & ATH9K_TXDESC_CTSENA ? AR_CTSEnable : 0)); + +- ACCESS_ONCE(ads->ds_ctl1) = ctl1; +- ACCESS_ONCE(ads->ds_ctl6) = ctl6; ++ ACCESS_ONCE_RW(ads->ds_ctl1) = ctl1; ++ ACCESS_ONCE_RW(ads->ds_ctl6) = ctl6; + + if (i->aggr == AGGR_BUF_MIDDLE || i->aggr == AGGR_BUF_LAST) + return; + +- ACCESS_ONCE(ads->ds_ctl4) = set11nPktDurRTSCTS(i->rates, 0) ++ ACCESS_ONCE_RW(ads->ds_ctl4) = set11nPktDurRTSCTS(i->rates, 0) + | set11nPktDurRTSCTS(i->rates, 1); + +- ACCESS_ONCE(ads->ds_ctl5) = set11nPktDurRTSCTS(i->rates, 2) ++ ACCESS_ONCE_RW(ads->ds_ctl5) = set11nPktDurRTSCTS(i->rates, 2) + | set11nPktDurRTSCTS(i->rates, 3); + +- ACCESS_ONCE(ads->ds_ctl7) = set11nRateFlags(i->rates, 0) ++ ACCESS_ONCE_RW(ads->ds_ctl7) = set11nRateFlags(i->rates, 0) + | set11nRateFlags(i->rates, 1) + | set11nRateFlags(i->rates, 2) + | set11nRateFlags(i->rates, 3) +diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c +index a66a13b..0ef399e 100644 +--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c ++++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c +@@ -39,47 +39,47 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i) + (i->qcu << AR_TxQcuNum_S) | desc_len; + + checksum += val; +- ACCESS_ONCE(ads->info) = val; ++ ACCESS_ONCE_RW(ads->info) = val; + + checksum += i->link; +- ACCESS_ONCE(ads->link) = i->link; ++ ACCESS_ONCE_RW(ads->link) = i->link; + + checksum += i->buf_addr[0]; +- ACCESS_ONCE(ads->data0) = i->buf_addr[0]; ++ ACCESS_ONCE_RW(ads->data0) = i->buf_addr[0]; + checksum += i->buf_addr[1]; +- ACCESS_ONCE(ads->data1) = i->buf_addr[1]; ++ ACCESS_ONCE_RW(ads->data1) = i->buf_addr[1]; + checksum += i->buf_addr[2]; +- ACCESS_ONCE(ads->data2) = i->buf_addr[2]; ++ ACCESS_ONCE_RW(ads->data2) = i->buf_addr[2]; + checksum += i->buf_addr[3]; +- ACCESS_ONCE(ads->data3) = i->buf_addr[3]; ++ ACCESS_ONCE_RW(ads->data3) = i->buf_addr[3]; + + checksum += (val = (i->buf_len[0] << AR_BufLen_S) & AR_BufLen); +- ACCESS_ONCE(ads->ctl3) = val; ++ ACCESS_ONCE_RW(ads->ctl3) = val; + checksum += (val = (i->buf_len[1] << AR_BufLen_S) & AR_BufLen); +- ACCESS_ONCE(ads->ctl5) = val; ++ ACCESS_ONCE_RW(ads->ctl5) = val; + checksum += (val = (i->buf_len[2] << AR_BufLen_S) & AR_BufLen); +- ACCESS_ONCE(ads->ctl7) = val; ++ ACCESS_ONCE_RW(ads->ctl7) = val; + checksum += (val = (i->buf_len[3] << AR_BufLen_S) & AR_BufLen); +- ACCESS_ONCE(ads->ctl9) = val; ++ ACCESS_ONCE_RW(ads->ctl9) = val; + + checksum = (u16) (((checksum & 0xffff) + (checksum >> 16)) & 0xffff); +- ACCESS_ONCE(ads->ctl10) = checksum; ++ ACCESS_ONCE_RW(ads->ctl10) = checksum; + + if (i->is_first || i->is_last) { +- ACCESS_ONCE(ads->ctl13) = set11nTries(i->rates, 0) ++ ACCESS_ONCE_RW(ads->ctl13) = set11nTries(i->rates, 0) + | set11nTries(i->rates, 1) + | set11nTries(i->rates, 2) + | set11nTries(i->rates, 3) + | (i->dur_update ? AR_DurUpdateEna : 0) + | SM(0, AR_BurstDur); + +- ACCESS_ONCE(ads->ctl14) = set11nRate(i->rates, 0) ++ ACCESS_ONCE_RW(ads->ctl14) = set11nRate(i->rates, 0) + | set11nRate(i->rates, 1) + | set11nRate(i->rates, 2) + | set11nRate(i->rates, 3); + } else { +- ACCESS_ONCE(ads->ctl13) = 0; +- ACCESS_ONCE(ads->ctl14) = 0; ++ ACCESS_ONCE_RW(ads->ctl13) = 0; ++ ACCESS_ONCE_RW(ads->ctl14) = 0; + } + + ads->ctl20 = 0; +@@ -89,17 +89,17 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i) + + ctl17 = SM(i->keytype, AR_EncrType); + if (!i->is_first) { +- ACCESS_ONCE(ads->ctl11) = 0; +- ACCESS_ONCE(ads->ctl12) = i->is_last ? 0 : AR_TxMore; +- ACCESS_ONCE(ads->ctl15) = 0; +- ACCESS_ONCE(ads->ctl16) = 0; +- ACCESS_ONCE(ads->ctl17) = ctl17; +- ACCESS_ONCE(ads->ctl18) = 0; +- ACCESS_ONCE(ads->ctl19) = 0; ++ ACCESS_ONCE_RW(ads->ctl11) = 0; ++ ACCESS_ONCE_RW(ads->ctl12) = i->is_last ? 0 : AR_TxMore; ++ ACCESS_ONCE_RW(ads->ctl15) = 0; ++ ACCESS_ONCE_RW(ads->ctl16) = 0; ++ ACCESS_ONCE_RW(ads->ctl17) = ctl17; ++ ACCESS_ONCE_RW(ads->ctl18) = 0; ++ ACCESS_ONCE_RW(ads->ctl19) = 0; + return; + } + +- ACCESS_ONCE(ads->ctl11) = (i->pkt_len & AR_FrameLen) ++ ACCESS_ONCE_RW(ads->ctl11) = (i->pkt_len & AR_FrameLen) + | (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0) + | SM(i->txpower, AR_XmitPower) + | (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0) +@@ -135,22 +135,22 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i) + val = (i->flags & ATH9K_TXDESC_PAPRD) >> ATH9K_TXDESC_PAPRD_S; + ctl12 |= SM(val, AR_PAPRDChainMask); + +- ACCESS_ONCE(ads->ctl12) = ctl12; +- ACCESS_ONCE(ads->ctl17) = ctl17; ++ ACCESS_ONCE_RW(ads->ctl12) = ctl12; ++ ACCESS_ONCE_RW(ads->ctl17) = ctl17; + +- ACCESS_ONCE(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0) ++ ACCESS_ONCE_RW(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0) + | set11nPktDurRTSCTS(i->rates, 1); + +- ACCESS_ONCE(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2) ++ ACCESS_ONCE_RW(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2) + | set11nPktDurRTSCTS(i->rates, 3); + +- ACCESS_ONCE(ads->ctl18) = set11nRateFlags(i->rates, 0) ++ ACCESS_ONCE_RW(ads->ctl18) = set11nRateFlags(i->rates, 0) + | set11nRateFlags(i->rates, 1) + | set11nRateFlags(i->rates, 2) + | set11nRateFlags(i->rates, 3) + | SM(i->rtscts_rate, AR_RTSCTSRate); + +- ACCESS_ONCE(ads->ctl19) = AR_Not_Sounding; ++ ACCESS_ONCE_RW(ads->ctl19) = AR_Not_Sounding; + } + + static u16 ar9003_calc_ptr_chksum(struct ar9003_txc *ads) +diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h +index e88f182..4e57f5d 100644 +--- a/drivers/net/wireless/ath/ath9k/hw.h ++++ b/drivers/net/wireless/ath/ath9k/hw.h +@@ -614,7 +614,7 @@ struct ath_hw_private_ops { + + /* ANI */ + void (*ani_cache_ini_regs)(struct ath_hw *ah); +-}; ++} __no_const; + + /** + * struct ath_hw_ops - callbacks used by hardware code and driver code +@@ -644,7 +644,7 @@ struct ath_hw_ops { + void (*antdiv_comb_conf_set)(struct ath_hw *ah, + struct ath_hw_antcomb_conf *antconf); + +-}; ++} __no_const; + + struct ath_nf_limits { + s16 max; +@@ -664,7 +664,7 @@ enum ath_cal_list { + #define AH_FASTCC 0x4 + + struct ath_hw { +- struct ath_ops reg_ops; ++ ath_ops_no_const reg_ops; + + struct ieee80211_hw *hw; + struct ath_common common; +diff --git a/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_int.h b/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_int.h +index af00e2c..ab04d34 100644 +--- a/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_int.h ++++ b/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_int.h +@@ -545,7 +545,7 @@ struct phy_func_ptr { + void (*carrsuppr)(struct brcms_phy *); + s32 (*rxsigpwr)(struct brcms_phy *, s32); + void (*detach)(struct brcms_phy *); +-}; ++} __no_const; + + struct brcms_phy { + struct brcms_phy_pub pubpi_ro; +diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c +index faec404..a5277f1 100644 +--- a/drivers/net/wireless/iwlegacy/3945-mac.c ++++ b/drivers/net/wireless/iwlegacy/3945-mac.c +@@ -3611,7 +3611,9 @@ il3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) + */ + if (il3945_mod_params.disable_hw_scan) { + D_INFO("Disabling hw_scan\n"); +- il3945_mac_ops.hw_scan = NULL; ++ pax_open_kernel(); ++ *(void **)&il3945_mac_ops.hw_scan = NULL; ++ pax_close_kernel(); + } + + D_INFO("*** LOAD DRIVER ***\n"); +diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c +index b7ce6a6..5649756 100644 +--- a/drivers/net/wireless/mac80211_hwsim.c ++++ b/drivers/net/wireless/mac80211_hwsim.c +@@ -1721,9 +1721,11 @@ static int __init init_mac80211_hwsim(void) + return -EINVAL; + + if (fake_hw_scan) { +- mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan; +- mac80211_hwsim_ops.sw_scan_start = NULL; +- mac80211_hwsim_ops.sw_scan_complete = NULL; ++ pax_open_kernel(); ++ *(void **)&mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan; ++ *(void **)&mac80211_hwsim_ops.sw_scan_start = NULL; ++ *(void **)&mac80211_hwsim_ops.sw_scan_complete = NULL; ++ pax_close_kernel(); + } + + spin_lock_init(&hwsim_radio_lock); +diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h +index 35225e9..95e6bf9 100644 +--- a/drivers/net/wireless/mwifiex/main.h ++++ b/drivers/net/wireless/mwifiex/main.h +@@ -537,7 +537,7 @@ struct mwifiex_if_ops { + void (*cleanup_mpa_buf) (struct mwifiex_adapter *); + int (*cmdrsp_complete) (struct mwifiex_adapter *, struct sk_buff *); + int (*event_complete) (struct mwifiex_adapter *, struct sk_buff *); +-}; ++} __no_const; + + struct mwifiex_adapter { + u8 iface_type; +diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c +index d66e298..55b0a89 100644 +--- a/drivers/net/wireless/rndis_wlan.c ++++ b/drivers/net/wireless/rndis_wlan.c +@@ -1278,7 +1278,7 @@ static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold) + + netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold); + +- if (rts_threshold < 0 || rts_threshold > 2347) ++ if (rts_threshold > 2347) + rts_threshold = 2347; + + tmp = cpu_to_le32(rts_threshold); +diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h +index c264dfa..08ee30e 100644 +--- a/drivers/net/wireless/rt2x00/rt2x00.h ++++ b/drivers/net/wireless/rt2x00/rt2x00.h +@@ -396,7 +396,7 @@ struct rt2x00_intf { + * for hardware which doesn't support hardware + * sequence counting. + */ +- atomic_t seqno; ++ atomic_unchecked_t seqno; + }; + + static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif) +diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c +index 50f92d5..f3afc41 100644 +--- a/drivers/net/wireless/rt2x00/rt2x00queue.c ++++ b/drivers/net/wireless/rt2x00/rt2x00queue.c +@@ -229,9 +229,9 @@ static void rt2x00queue_create_tx_descriptor_seq(struct rt2x00_dev *rt2x00dev, + * sequence counter given by mac80211. + */ + if (test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags)) +- seqno = atomic_add_return(0x10, &intf->seqno); ++ seqno = atomic_add_return_unchecked(0x10, &intf->seqno); + else +- seqno = atomic_read(&intf->seqno); ++ seqno = atomic_read_unchecked(&intf->seqno); + + hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); + hdr->seq_ctrl |= cpu_to_le16(seqno); +diff --git a/drivers/net/wireless/wl1251/wl1251.h b/drivers/net/wireless/wl1251/wl1251.h +index 9d8f581..0f6589e 100644 +--- a/drivers/net/wireless/wl1251/wl1251.h ++++ b/drivers/net/wireless/wl1251/wl1251.h +@@ -266,7 +266,7 @@ struct wl1251_if_operations { + void (*reset)(struct wl1251 *wl); + void (*enable_irq)(struct wl1251 *wl); + void (*disable_irq)(struct wl1251 *wl); +-}; ++} __no_const; + + struct wl1251 { + struct ieee80211_hw *hw; +diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c +index f34b5b2..b5abb9f 100644 +--- a/drivers/oprofile/buffer_sync.c ++++ b/drivers/oprofile/buffer_sync.c +@@ -343,7 +343,7 @@ static void add_data(struct op_entry *entry, struct mm_struct *mm) + if (cookie == NO_COOKIE) + offset = pc; + if (cookie == INVALID_COOKIE) { +- atomic_inc(&oprofile_stats.sample_lost_no_mapping); ++ atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping); + offset = pc; + } + if (cookie != last_cookie) { +@@ -387,14 +387,14 @@ add_sample(struct mm_struct *mm, struct op_sample *s, int in_kernel) + /* add userspace sample */ + + if (!mm) { +- atomic_inc(&oprofile_stats.sample_lost_no_mm); ++ atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mm); + return 0; + } + + cookie = lookup_dcookie(mm, s->eip, &offset); + + if (cookie == INVALID_COOKIE) { +- atomic_inc(&oprofile_stats.sample_lost_no_mapping); ++ atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping); + return 0; + } + +@@ -563,7 +563,7 @@ void sync_buffer(int cpu) + /* ignore backtraces if failed to add a sample */ + if (state == sb_bt_start) { + state = sb_bt_ignore; +- atomic_inc(&oprofile_stats.bt_lost_no_mapping); ++ atomic_inc_unchecked(&oprofile_stats.bt_lost_no_mapping); + } + } + release_mm(mm); +diff --git a/drivers/oprofile/event_buffer.c b/drivers/oprofile/event_buffer.c +index c0cc4e7..44d4e54 100644 +--- a/drivers/oprofile/event_buffer.c ++++ b/drivers/oprofile/event_buffer.c +@@ -53,7 +53,7 @@ void add_event_entry(unsigned long value) + } + + if (buffer_pos == buffer_size) { +- atomic_inc(&oprofile_stats.event_lost_overflow); ++ atomic_inc_unchecked(&oprofile_stats.event_lost_overflow); + return; + } + +diff --git a/drivers/oprofile/oprof.c b/drivers/oprofile/oprof.c +index ed2c3ec..deda85a 100644 +--- a/drivers/oprofile/oprof.c ++++ b/drivers/oprofile/oprof.c +@@ -110,7 +110,7 @@ static void switch_worker(struct work_struct *work) + if (oprofile_ops.switch_events()) + return; + +- atomic_inc(&oprofile_stats.multiplex_counter); ++ atomic_inc_unchecked(&oprofile_stats.multiplex_counter); + start_switch_worker(); + } + +diff --git a/drivers/oprofile/oprofile_stats.c b/drivers/oprofile/oprofile_stats.c +index 917d28e..d62d981 100644 +--- a/drivers/oprofile/oprofile_stats.c ++++ b/drivers/oprofile/oprofile_stats.c +@@ -30,11 +30,11 @@ void oprofile_reset_stats(void) + cpu_buf->sample_invalid_eip = 0; + } + +- atomic_set(&oprofile_stats.sample_lost_no_mm, 0); +- atomic_set(&oprofile_stats.sample_lost_no_mapping, 0); +- atomic_set(&oprofile_stats.event_lost_overflow, 0); +- atomic_set(&oprofile_stats.bt_lost_no_mapping, 0); +- atomic_set(&oprofile_stats.multiplex_counter, 0); ++ atomic_set_unchecked(&oprofile_stats.sample_lost_no_mm, 0); ++ atomic_set_unchecked(&oprofile_stats.sample_lost_no_mapping, 0); ++ atomic_set_unchecked(&oprofile_stats.event_lost_overflow, 0); ++ atomic_set_unchecked(&oprofile_stats.bt_lost_no_mapping, 0); ++ atomic_set_unchecked(&oprofile_stats.multiplex_counter, 0); + } + + +diff --git a/drivers/oprofile/oprofile_stats.h b/drivers/oprofile/oprofile_stats.h +index 38b6fc0..b5cbfce 100644 +--- a/drivers/oprofile/oprofile_stats.h ++++ b/drivers/oprofile/oprofile_stats.h +@@ -13,11 +13,11 @@ + #include <linux/atomic.h> + + struct oprofile_stat_struct { +- atomic_t sample_lost_no_mm; +- atomic_t sample_lost_no_mapping; +- atomic_t bt_lost_no_mapping; +- atomic_t event_lost_overflow; +- atomic_t multiplex_counter; ++ atomic_unchecked_t sample_lost_no_mm; ++ atomic_unchecked_t sample_lost_no_mapping; ++ atomic_unchecked_t bt_lost_no_mapping; ++ atomic_unchecked_t event_lost_overflow; ++ atomic_unchecked_t multiplex_counter; + }; + + extern struct oprofile_stat_struct oprofile_stats; +diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c +index 849357c..b83c1e0 100644 +--- a/drivers/oprofile/oprofilefs.c ++++ b/drivers/oprofile/oprofilefs.c +@@ -185,7 +185,7 @@ static const struct file_operations atomic_ro_fops = { + + + int oprofilefs_create_ro_atomic(struct super_block *sb, struct dentry *root, +- char const *name, atomic_t *val) ++ char const *name, atomic_unchecked_t *val) + { + return __oprofilefs_create_file(sb, root, name, + &atomic_ro_fops, 0444, val); +diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c +index 3f56bc0..707d642 100644 +--- a/drivers/parport/procfs.c ++++ b/drivers/parport/procfs.c +@@ -64,7 +64,7 @@ static int do_active_device(ctl_table *table, int write, + + *ppos += len; + +- return copy_to_user(result, buffer, len) ? -EFAULT : 0; ++ return (len > sizeof buffer || copy_to_user(result, buffer, len)) ? -EFAULT : 0; + } + + #ifdef CONFIG_PARPORT_1284 +@@ -106,7 +106,7 @@ static int do_autoprobe(ctl_table *table, int write, + + *ppos += len; + +- return copy_to_user (result, buffer, len) ? -EFAULT : 0; ++ return (len > sizeof buffer || copy_to_user (result, buffer, len)) ? -EFAULT : 0; + } + #endif /* IEEE1284.3 support. */ + +diff --git a/drivers/pci/hotplug/cpci_hotplug.h b/drivers/pci/hotplug/cpci_hotplug.h +index 9fff878..ad0ad53 100644 +--- a/drivers/pci/hotplug/cpci_hotplug.h ++++ b/drivers/pci/hotplug/cpci_hotplug.h +@@ -59,7 +59,7 @@ struct cpci_hp_controller_ops { + int (*hardware_test) (struct slot* slot, u32 value); + u8 (*get_power) (struct slot* slot); + int (*set_power) (struct slot* slot, int value); +-}; ++} __no_const; + + struct cpci_hp_controller { + unsigned int irq; +diff --git a/drivers/pci/hotplug/cpqphp_nvram.c b/drivers/pci/hotplug/cpqphp_nvram.c +index 76ba8a1..20ca857 100644 +--- a/drivers/pci/hotplug/cpqphp_nvram.c ++++ b/drivers/pci/hotplug/cpqphp_nvram.c +@@ -428,9 +428,13 @@ static u32 store_HRT (void __iomem *rom_start) + + void compaq_nvram_init (void __iomem *rom_start) + { ++ ++#ifndef CONFIG_PAX_KERNEXEC + if (rom_start) { + compaq_int15_entry_point = (rom_start + ROM_INT15_PHY_ADDR - ROM_PHY_ADDR); + } ++#endif ++ + dbg("int15 entry = %p\n", compaq_int15_entry_point); + + /* initialize our int15 lock */ +diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c +index b500840..d7159d3 100644 +--- a/drivers/pci/pcie/aspm.c ++++ b/drivers/pci/pcie/aspm.c +@@ -27,9 +27,9 @@ + #define MODULE_PARAM_PREFIX "pcie_aspm." + + /* Note: those are not register definitions */ +-#define ASPM_STATE_L0S_UP (1) /* Upstream direction L0s state */ +-#define ASPM_STATE_L0S_DW (2) /* Downstream direction L0s state */ +-#define ASPM_STATE_L1 (4) /* L1 state */ ++#define ASPM_STATE_L0S_UP (1U) /* Upstream direction L0s state */ ++#define ASPM_STATE_L0S_DW (2U) /* Downstream direction L0s state */ ++#define ASPM_STATE_L1 (4U) /* L1 state */ + #define ASPM_STATE_L0S (ASPM_STATE_L0S_UP | ASPM_STATE_L0S_DW) + #define ASPM_STATE_ALL (ASPM_STATE_L0S | ASPM_STATE_L1) + +diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c +index 5e1ca3c..08082fe 100644 +--- a/drivers/pci/probe.c ++++ b/drivers/pci/probe.c +@@ -215,7 +215,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type, + u16 orig_cmd; + struct pci_bus_region region; + +- mask = type ? PCI_ROM_ADDRESS_MASK : ~0; ++ mask = type ? (u32)PCI_ROM_ADDRESS_MASK : ~0; + + if (!dev->mmio_always_on) { + pci_read_config_word(dev, PCI_COMMAND, &orig_cmd); +diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c +index 27911b5..5b6db88 100644 +--- a/drivers/pci/proc.c ++++ b/drivers/pci/proc.c +@@ -476,7 +476,16 @@ static const struct file_operations proc_bus_pci_dev_operations = { + static int __init pci_proc_init(void) + { + struct pci_dev *dev = NULL; ++ ++#ifdef CONFIG_GRKERNSEC_PROC_ADD ++#ifdef CONFIG_GRKERNSEC_PROC_USER ++ proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR, NULL); ++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL); ++#endif ++#else + proc_bus_pci_dir = proc_mkdir("bus/pci", NULL); ++#endif + proc_create("devices", 0, proc_bus_pci_dir, + &proc_bus_pci_dev_operations); + proc_initialized = 1; +diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c +index d68c000..f6094ca 100644 +--- a/drivers/platform/x86/thinkpad_acpi.c ++++ b/drivers/platform/x86/thinkpad_acpi.c +@@ -2094,7 +2094,7 @@ static int hotkey_mask_get(void) + return 0; + } + +-void static hotkey_mask_warn_incomplete_mask(void) ++static void hotkey_mask_warn_incomplete_mask(void) + { + /* log only what the user can fix... */ + const u32 wantedmask = hotkey_driver_mask & +@@ -2325,11 +2325,6 @@ static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m) + } + } + +-static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, +- struct tp_nvram_state *newn, +- const u32 event_mask) +-{ +- + #define TPACPI_COMPARE_KEY(__scancode, __member) \ + do { \ + if ((event_mask & (1 << __scancode)) && \ +@@ -2343,36 +2338,42 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, + tpacpi_hotkey_send_key(__scancode); \ + } while (0) + +- void issue_volchange(const unsigned int oldvol, +- const unsigned int newvol) +- { +- unsigned int i = oldvol; ++static void issue_volchange(const unsigned int oldvol, ++ const unsigned int newvol, ++ const u32 event_mask) ++{ ++ unsigned int i = oldvol; + +- while (i > newvol) { +- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); +- i--; +- } +- while (i < newvol) { +- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); +- i++; +- } ++ while (i > newvol) { ++ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); ++ i--; + } ++ while (i < newvol) { ++ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); ++ i++; ++ } ++} + +- void issue_brightnesschange(const unsigned int oldbrt, +- const unsigned int newbrt) +- { +- unsigned int i = oldbrt; ++static void issue_brightnesschange(const unsigned int oldbrt, ++ const unsigned int newbrt, ++ const u32 event_mask) ++{ ++ unsigned int i = oldbrt; + +- while (i > newbrt) { +- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); +- i--; +- } +- while (i < newbrt) { +- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); +- i++; +- } ++ while (i > newbrt) { ++ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); ++ i--; ++ } ++ while (i < newbrt) { ++ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); ++ i++; + } ++} + ++static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, ++ struct tp_nvram_state *newn, ++ const u32 event_mask) ++{ + TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); + TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); + TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); +@@ -2406,7 +2407,7 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, + oldn->volume_level != newn->volume_level) { + /* recently muted, or repeated mute keypress, or + * multiple presses ending in mute */ +- issue_volchange(oldn->volume_level, newn->volume_level); ++ issue_volchange(oldn->volume_level, newn->volume_level, event_mask); + TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); + } + } else { +@@ -2416,7 +2417,7 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, + TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); + } + if (oldn->volume_level != newn->volume_level) { +- issue_volchange(oldn->volume_level, newn->volume_level); ++ issue_volchange(oldn->volume_level, newn->volume_level, event_mask); + } else if (oldn->volume_toggle != newn->volume_toggle) { + /* repeated vol up/down keypress at end of scale ? */ + if (newn->volume_level == 0) +@@ -2429,7 +2430,8 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, + /* handle brightness */ + if (oldn->brightness_level != newn->brightness_level) { + issue_brightnesschange(oldn->brightness_level, +- newn->brightness_level); ++ newn->brightness_level, ++ event_mask); + } else if (oldn->brightness_toggle != newn->brightness_toggle) { + /* repeated key presses that didn't change state */ + if (newn->brightness_level == 0) +@@ -2438,10 +2440,10 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, + && !tp_features.bright_unkfw) + TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); + } ++} + + #undef TPACPI_COMPARE_KEY + #undef TPACPI_MAY_SEND_KEY +-} + + /* + * Polling driver +diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c +index 769d265..a3a05ca 100644 +--- a/drivers/pnp/pnpbios/bioscalls.c ++++ b/drivers/pnp/pnpbios/bioscalls.c +@@ -58,7 +58,7 @@ do { \ + set_desc_limit(&gdt[(selname) >> 3], (size) - 1); \ + } while(0) + +-static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092, ++static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093, + (unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1); + + /* +@@ -95,7 +95,10 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3, + + cpu = get_cpu(); + save_desc_40 = get_cpu_gdt_table(cpu)[0x40 / 8]; ++ ++ pax_open_kernel(); + get_cpu_gdt_table(cpu)[0x40 / 8] = bad_bios_desc; ++ pax_close_kernel(); + + /* On some boxes IRQ's during PnP BIOS calls are deadly. */ + spin_lock_irqsave(&pnp_bios_lock, flags); +@@ -133,7 +136,10 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3, + :"memory"); + spin_unlock_irqrestore(&pnp_bios_lock, flags); + ++ pax_open_kernel(); + get_cpu_gdt_table(cpu)[0x40 / 8] = save_desc_40; ++ pax_close_kernel(); ++ + put_cpu(); + + /* If we get here and this is set then the PnP BIOS faulted on us. */ +@@ -467,7 +473,7 @@ int pnp_bios_read_escd(char *data, u32 nvram_base) + return status; + } + +-void pnpbios_calls_init(union pnp_bios_install_struct *header) ++void __init pnpbios_calls_init(union pnp_bios_install_struct *header) + { + int i; + +@@ -475,6 +481,8 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header) + pnp_bios_callpoint.offset = header->fields.pm16offset; + pnp_bios_callpoint.segment = PNP_CS16; + ++ pax_open_kernel(); ++ + for_each_possible_cpu(i) { + struct desc_struct *gdt = get_cpu_gdt_table(i); + if (!gdt) +@@ -486,4 +494,6 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header) + set_desc_base(&gdt[GDT_ENTRY_PNPBIOS_DS], + (unsigned long)__va(header->fields.pm16dseg)); + } ++ ++ pax_close_kernel(); + } +diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c +index b0ecacb..7c9da2e 100644 +--- a/drivers/pnp/resource.c ++++ b/drivers/pnp/resource.c +@@ -360,7 +360,7 @@ int pnp_check_irq(struct pnp_dev *dev, struct resource *res) + return 1; + + /* check if the resource is valid */ +- if (*irq < 0 || *irq > 15) ++ if (*irq > 15) + return 0; + + /* check if the resource is reserved */ +@@ -424,7 +424,7 @@ int pnp_check_dma(struct pnp_dev *dev, struct resource *res) + return 1; + + /* check if the resource is valid */ +- if (*dma < 0 || *dma == 4 || *dma > 7) ++ if (*dma == 4 || *dma > 7) + return 0; + + /* check if the resource is reserved */ +diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c +index 222ccd8..6275fa5 100644 +--- a/drivers/power/bq27x00_battery.c ++++ b/drivers/power/bq27x00_battery.c +@@ -72,7 +72,7 @@ + struct bq27x00_device_info; + struct bq27x00_access_methods { + int (*read)(struct bq27x00_device_info *di, u8 reg, bool single); +-}; ++} __no_const; + + enum bq27x00_chip { BQ27000, BQ27500 }; + +diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c +index 4c5b053..104263e 100644 +--- a/drivers/regulator/max8660.c ++++ b/drivers/regulator/max8660.c +@@ -385,8 +385,10 @@ static int __devinit max8660_probe(struct i2c_client *client, + max8660->shadow_regs[MAX8660_OVER1] = 5; + } else { + /* Otherwise devices can be toggled via software */ +- max8660_dcdc_ops.enable = max8660_dcdc_enable; +- max8660_dcdc_ops.disable = max8660_dcdc_disable; ++ pax_open_kernel(); ++ *(void **)&max8660_dcdc_ops.enable = max8660_dcdc_enable; ++ *(void **)&max8660_dcdc_ops.disable = max8660_dcdc_disable; ++ pax_close_kernel(); + } + + /* +diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c +index 845aa22..99ec402 100644 +--- a/drivers/regulator/mc13892-regulator.c ++++ b/drivers/regulator/mc13892-regulator.c +@@ -574,10 +574,12 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev) + } + mc13xxx_unlock(mc13892); + +- mc13892_regulators[MC13892_VCAM].desc.ops->set_mode ++ pax_open_kernel(); ++ *(void **)&mc13892_regulators[MC13892_VCAM].desc.ops->set_mode + = mc13892_vcam_set_mode; +- mc13892_regulators[MC13892_VCAM].desc.ops->get_mode ++ *(void **)&mc13892_regulators[MC13892_VCAM].desc.ops->get_mode + = mc13892_vcam_get_mode; ++ pax_close_kernel(); + + mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13892_regulators, + ARRAY_SIZE(mc13892_regulators)); +diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c +index cace6d3..f623fda 100644 +--- a/drivers/rtc/rtc-dev.c ++++ b/drivers/rtc/rtc-dev.c +@@ -14,6 +14,7 @@ + #include <linux/module.h> + #include <linux/rtc.h> + #include <linux/sched.h> ++#include <linux/grsecurity.h> + #include "rtc-core.h" + + static dev_t rtc_devt; +@@ -345,6 +346,8 @@ static long rtc_dev_ioctl(struct file *file, + if (copy_from_user(&tm, uarg, sizeof(tm))) + return -EFAULT; + ++ gr_log_timechange(); ++ + return rtc_set_time(rtc, &tm); + + case RTC_PIE_ON: +diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h +index 3fcf627..f334910 100644 +--- a/drivers/scsi/aacraid/aacraid.h ++++ b/drivers/scsi/aacraid/aacraid.h +@@ -492,7 +492,7 @@ struct adapter_ops + int (*adapter_scsi)(struct fib * fib, struct scsi_cmnd * cmd); + /* Administrative operations */ + int (*adapter_comm)(struct aac_dev * dev, int comm); +-}; ++} __no_const; + + /* + * Define which interrupt handler needs to be installed +diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c +index 0d279c44..3d25a97 100644 +--- a/drivers/scsi/aacraid/linit.c ++++ b/drivers/scsi/aacraid/linit.c +@@ -93,7 +93,7 @@ static DECLARE_PCI_DEVICE_TABLE(aac_pci_tbl) = { + #elif defined(__devinitconst) + static const struct pci_device_id aac_pci_tbl[] __devinitconst = { + #else +-static const struct pci_device_id aac_pci_tbl[] __devinitdata = { ++static const struct pci_device_id aac_pci_tbl[] __devinitconst = { + #endif + { 0x1028, 0x0001, 0x1028, 0x0001, 0, 0, 0 }, /* PERC 2/Si (Iguana/PERC2Si) */ + { 0x1028, 0x0002, 0x1028, 0x0002, 0, 0, 1 }, /* PERC 3/Di (Opal/PERC3Di) */ +diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c +index ff80552..1c4120c 100644 +--- a/drivers/scsi/aic94xx/aic94xx_init.c ++++ b/drivers/scsi/aic94xx/aic94xx_init.c +@@ -1012,7 +1012,7 @@ static struct sas_domain_function_template aic94xx_transport_functions = { + .lldd_ata_set_dmamode = asd_set_dmamode, + }; + +-static const struct pci_device_id aic94xx_pci_table[] __devinitdata = { ++static const struct pci_device_id aic94xx_pci_table[] __devinitconst = { + {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1}, + {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1}, + {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1}, +diff --git a/drivers/scsi/bfa/bfa.h b/drivers/scsi/bfa/bfa.h +index 4ad7e36..d004679 100644 +--- a/drivers/scsi/bfa/bfa.h ++++ b/drivers/scsi/bfa/bfa.h +@@ -196,7 +196,7 @@ struct bfa_hwif_s { + u32 *end); + int cpe_vec_q0; + int rme_vec_q0; +-}; ++} __no_const; + typedef void (*bfa_cb_iocfc_t) (void *cbarg, enum bfa_status status); + + struct bfa_faa_cbfn_s { +diff --git a/drivers/scsi/bfa/bfa_fcpim.c b/drivers/scsi/bfa/bfa_fcpim.c +index f0f80e2..8ec946b 100644 +--- a/drivers/scsi/bfa/bfa_fcpim.c ++++ b/drivers/scsi/bfa/bfa_fcpim.c +@@ -3715,7 +3715,7 @@ bfa_fcp_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg, + + bfa_iotag_attach(fcp); + +- fcp->itn_arr = (struct bfa_itn_s *) bfa_mem_kva_curp(fcp); ++ fcp->itn_arr = (bfa_itn_s_no_const *) bfa_mem_kva_curp(fcp); + bfa_mem_kva_curp(fcp) = (u8 *)fcp->itn_arr + + (fcp->num_itns * sizeof(struct bfa_itn_s)); + memset(fcp->itn_arr, 0, +@@ -3773,7 +3773,7 @@ bfa_itn_create(struct bfa_s *bfa, struct bfa_rport_s *rport, + void (*isr)(struct bfa_s *bfa, struct bfi_msg_s *m)) + { + struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa); +- struct bfa_itn_s *itn; ++ bfa_itn_s_no_const *itn; + + itn = BFA_ITN_FROM_TAG(fcp, rport->rport_tag); + itn->isr = isr; +diff --git a/drivers/scsi/bfa/bfa_fcpim.h b/drivers/scsi/bfa/bfa_fcpim.h +index 36f26da..38a34a8 100644 +--- a/drivers/scsi/bfa/bfa_fcpim.h ++++ b/drivers/scsi/bfa/bfa_fcpim.h +@@ -37,6 +37,7 @@ struct bfa_iotag_s { + struct bfa_itn_s { + bfa_isr_func_t isr; + }; ++typedef struct bfa_itn_s __no_const bfa_itn_s_no_const; + + void bfa_itn_create(struct bfa_s *bfa, struct bfa_rport_s *rport, + void (*isr)(struct bfa_s *bfa, struct bfi_msg_s *m)); +@@ -147,7 +148,7 @@ struct bfa_fcp_mod_s { + struct list_head iotag_tio_free_q; /* free IO resources */ + struct list_head iotag_unused_q; /* unused IO resources*/ + struct bfa_iotag_s *iotag_arr; +- struct bfa_itn_s *itn_arr; ++ bfa_itn_s_no_const *itn_arr; + int num_ioim_reqs; + int num_fwtio_reqs; + int num_itns; +diff --git a/drivers/scsi/bfa/bfa_ioc.h b/drivers/scsi/bfa/bfa_ioc.h +index 1a99d4b..e85d64b 100644 +--- a/drivers/scsi/bfa/bfa_ioc.h ++++ b/drivers/scsi/bfa/bfa_ioc.h +@@ -258,7 +258,7 @@ struct bfa_ioc_cbfn_s { + bfa_ioc_disable_cbfn_t disable_cbfn; + bfa_ioc_hbfail_cbfn_t hbfail_cbfn; + bfa_ioc_reset_cbfn_t reset_cbfn; +-}; ++} __no_const; + + /* + * IOC event notification mechanism. +@@ -346,7 +346,7 @@ struct bfa_ioc_hwif_s { + void (*ioc_sync_ack) (struct bfa_ioc_s *ioc); + bfa_boolean_t (*ioc_sync_complete) (struct bfa_ioc_s *ioc); + bfa_boolean_t (*ioc_lpu_read_stat) (struct bfa_ioc_s *ioc); +-}; ++} __no_const; + + /* + * Queue element to wait for room in request queue. FIFO order is +diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c +index a3a056a..b9bbc2f 100644 +--- a/drivers/scsi/hosts.c ++++ b/drivers/scsi/hosts.c +@@ -42,7 +42,7 @@ + #include "scsi_logging.h" + + +-static atomic_t scsi_host_next_hn; /* host_no for next new host */ ++static atomic_unchecked_t scsi_host_next_hn; /* host_no for next new host */ + + + static void scsi_host_cls_release(struct device *dev) +@@ -360,7 +360,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize) + * subtract one because we increment first then return, but we need to + * know what the next host number was before increment + */ +- shost->host_no = atomic_inc_return(&scsi_host_next_hn) - 1; ++ shost->host_no = atomic_inc_return_unchecked(&scsi_host_next_hn) - 1; + shost->dma_channel = 0xff; + + /* These three are default values which can be overridden */ +diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c +index 500e20d..ebd3059 100644 +--- a/drivers/scsi/hpsa.c ++++ b/drivers/scsi/hpsa.c +@@ -521,7 +521,7 @@ static inline u32 next_command(struct ctlr_info *h) + u32 a; + + if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant))) +- return h->access.command_completed(h); ++ return h->access->command_completed(h); + + if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) { + a = *(h->reply_pool_head); /* Next cmd in ring buffer */ +@@ -3002,7 +3002,7 @@ static void start_io(struct ctlr_info *h) + while (!list_empty(&h->reqQ)) { + c = list_entry(h->reqQ.next, struct CommandList, list); + /* can't do anything if fifo is full */ +- if ((h->access.fifo_full(h))) { ++ if ((h->access->fifo_full(h))) { + dev_warn(&h->pdev->dev, "fifo full\n"); + break; + } +@@ -3012,7 +3012,7 @@ static void start_io(struct ctlr_info *h) + h->Qdepth--; + + /* Tell the controller execute command */ +- h->access.submit_command(h, c); ++ h->access->submit_command(h, c); + + /* Put job onto the completed Q */ + addQ(&h->cmpQ, c); +@@ -3021,17 +3021,17 @@ static void start_io(struct ctlr_info *h) + + static inline unsigned long get_next_completion(struct ctlr_info *h) + { +- return h->access.command_completed(h); ++ return h->access->command_completed(h); + } + + static inline bool interrupt_pending(struct ctlr_info *h) + { +- return h->access.intr_pending(h); ++ return h->access->intr_pending(h); + } + + static inline long interrupt_not_for_us(struct ctlr_info *h) + { +- return (h->access.intr_pending(h) == 0) || ++ return (h->access->intr_pending(h) == 0) || + (h->interrupts_enabled == 0); + } + +@@ -3930,7 +3930,7 @@ static int __devinit hpsa_pci_init(struct ctlr_info *h) + if (prod_index < 0) + return -ENODEV; + h->product_name = products[prod_index].product_name; +- h->access = *(products[prod_index].access); ++ h->access = products[prod_index].access; + + if (hpsa_board_disabled(h->pdev)) { + dev_warn(&h->pdev->dev, "controller appears to be disabled\n"); +@@ -4175,7 +4175,7 @@ static void controller_lockup_detected(struct ctlr_info *h) + + assert_spin_locked(&lockup_detector_lock); + remove_ctlr_from_lockup_detector_list(h); +- h->access.set_intr_mask(h, HPSA_INTR_OFF); ++ h->access->set_intr_mask(h, HPSA_INTR_OFF); + spin_lock_irqsave(&h->lock, flags); + h->lockup_detected = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET); + spin_unlock_irqrestore(&h->lock, flags); +@@ -4355,7 +4355,7 @@ reinit_after_soft_reset: + } + + /* make sure the board interrupts are off */ +- h->access.set_intr_mask(h, HPSA_INTR_OFF); ++ h->access->set_intr_mask(h, HPSA_INTR_OFF); + + if (hpsa_request_irq(h, do_hpsa_intr_msi, do_hpsa_intr_intx)) + goto clean2; +@@ -4389,7 +4389,7 @@ reinit_after_soft_reset: + * fake ones to scoop up any residual completions. + */ + spin_lock_irqsave(&h->lock, flags); +- h->access.set_intr_mask(h, HPSA_INTR_OFF); ++ h->access->set_intr_mask(h, HPSA_INTR_OFF); + spin_unlock_irqrestore(&h->lock, flags); + free_irq(h->intr[h->intr_mode], h); + rc = hpsa_request_irq(h, hpsa_msix_discard_completions, +@@ -4408,9 +4408,9 @@ reinit_after_soft_reset: + dev_info(&h->pdev->dev, "Board READY.\n"); + dev_info(&h->pdev->dev, + "Waiting for stale completions to drain.\n"); +- h->access.set_intr_mask(h, HPSA_INTR_ON); ++ h->access->set_intr_mask(h, HPSA_INTR_ON); + msleep(10000); +- h->access.set_intr_mask(h, HPSA_INTR_OFF); ++ h->access->set_intr_mask(h, HPSA_INTR_OFF); + + rc = controller_reset_failed(h->cfgtable); + if (rc) +@@ -4431,7 +4431,7 @@ reinit_after_soft_reset: + } + + /* Turn the interrupts on so we can service requests */ +- h->access.set_intr_mask(h, HPSA_INTR_ON); ++ h->access->set_intr_mask(h, HPSA_INTR_ON); + + hpsa_hba_inquiry(h); + hpsa_register_scsi(h); /* hook ourselves into SCSI subsystem */ +@@ -4483,7 +4483,7 @@ static void hpsa_shutdown(struct pci_dev *pdev) + * To write all data in the battery backed cache to disks + */ + hpsa_flush_cache(h); +- h->access.set_intr_mask(h, HPSA_INTR_OFF); ++ h->access->set_intr_mask(h, HPSA_INTR_OFF); + free_irq(h->intr[h->intr_mode], h); + #ifdef CONFIG_PCI_MSI + if (h->msix_vector) +@@ -4657,7 +4657,7 @@ static __devinit void hpsa_enter_performant_mode(struct ctlr_info *h, + return; + } + /* Change the access methods to the performant access methods */ +- h->access = SA5_performant_access; ++ h->access = &SA5_performant_access; + h->transMethod = CFGTBL_Trans_Performant; + } + +diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h +index 7b28d54..952f23a 100644 +--- a/drivers/scsi/hpsa.h ++++ b/drivers/scsi/hpsa.h +@@ -72,7 +72,7 @@ struct ctlr_info { + unsigned int msix_vector; + unsigned int msi_vector; + int intr_mode; /* either PERF_MODE_INT or SIMPLE_MODE_INT */ +- struct access_method access; ++ struct access_method *access; + + /* queue and queue Info */ + struct list_head reqQ; +diff --git a/drivers/scsi/ips.h b/drivers/scsi/ips.h +index f2df059..a3a9930 100644 +--- a/drivers/scsi/ips.h ++++ b/drivers/scsi/ips.h +@@ -1027,7 +1027,7 @@ typedef struct { + int (*intr)(struct ips_ha *); + void (*enableint)(struct ips_ha *); + uint32_t (*statupd)(struct ips_ha *); +-} ips_hw_func_t; ++} __no_const ips_hw_func_t; + + typedef struct ips_ha { + uint8_t ha_id[IPS_MAX_CHANNELS+1]; +diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c +index aceffad..c35c08d 100644 +--- a/drivers/scsi/libfc/fc_exch.c ++++ b/drivers/scsi/libfc/fc_exch.c +@@ -105,12 +105,12 @@ struct fc_exch_mgr { + * all together if not used XXX + */ + struct { +- atomic_t no_free_exch; +- atomic_t no_free_exch_xid; +- atomic_t xid_not_found; +- atomic_t xid_busy; +- atomic_t seq_not_found; +- atomic_t non_bls_resp; ++ atomic_unchecked_t no_free_exch; ++ atomic_unchecked_t no_free_exch_xid; ++ atomic_unchecked_t xid_not_found; ++ atomic_unchecked_t xid_busy; ++ atomic_unchecked_t seq_not_found; ++ atomic_unchecked_t non_bls_resp; + } stats; + }; + +@@ -719,7 +719,7 @@ static struct fc_exch *fc_exch_em_alloc(struct fc_lport *lport, + /* allocate memory for exchange */ + ep = mempool_alloc(mp->ep_pool, GFP_ATOMIC); + if (!ep) { +- atomic_inc(&mp->stats.no_free_exch); ++ atomic_inc_unchecked(&mp->stats.no_free_exch); + goto out; + } + memset(ep, 0, sizeof(*ep)); +@@ -780,7 +780,7 @@ out: + return ep; + err: + spin_unlock_bh(&pool->lock); +- atomic_inc(&mp->stats.no_free_exch_xid); ++ atomic_inc_unchecked(&mp->stats.no_free_exch_xid); + mempool_free(ep, mp->ep_pool); + return NULL; + } +@@ -923,7 +923,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport, + xid = ntohs(fh->fh_ox_id); /* we originated exch */ + ep = fc_exch_find(mp, xid); + if (!ep) { +- atomic_inc(&mp->stats.xid_not_found); ++ atomic_inc_unchecked(&mp->stats.xid_not_found); + reject = FC_RJT_OX_ID; + goto out; + } +@@ -953,7 +953,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport, + ep = fc_exch_find(mp, xid); + if ((f_ctl & FC_FC_FIRST_SEQ) && fc_sof_is_init(fr_sof(fp))) { + if (ep) { +- atomic_inc(&mp->stats.xid_busy); ++ atomic_inc_unchecked(&mp->stats.xid_busy); + reject = FC_RJT_RX_ID; + goto rel; + } +@@ -964,7 +964,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport, + } + xid = ep->xid; /* get our XID */ + } else if (!ep) { +- atomic_inc(&mp->stats.xid_not_found); ++ atomic_inc_unchecked(&mp->stats.xid_not_found); + reject = FC_RJT_RX_ID; /* XID not found */ + goto out; + } +@@ -981,7 +981,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport, + } else { + sp = &ep->seq; + if (sp->id != fh->fh_seq_id) { +- atomic_inc(&mp->stats.seq_not_found); ++ atomic_inc_unchecked(&mp->stats.seq_not_found); + if (f_ctl & FC_FC_END_SEQ) { + /* + * Update sequence_id based on incoming last +@@ -1431,22 +1431,22 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp) + + ep = fc_exch_find(mp, ntohs(fh->fh_ox_id)); + if (!ep) { +- atomic_inc(&mp->stats.xid_not_found); ++ atomic_inc_unchecked(&mp->stats.xid_not_found); + goto out; + } + if (ep->esb_stat & ESB_ST_COMPLETE) { +- atomic_inc(&mp->stats.xid_not_found); ++ atomic_inc_unchecked(&mp->stats.xid_not_found); + goto rel; + } + if (ep->rxid == FC_XID_UNKNOWN) + ep->rxid = ntohs(fh->fh_rx_id); + if (ep->sid != 0 && ep->sid != ntoh24(fh->fh_d_id)) { +- atomic_inc(&mp->stats.xid_not_found); ++ atomic_inc_unchecked(&mp->stats.xid_not_found); + goto rel; + } + if (ep->did != ntoh24(fh->fh_s_id) && + ep->did != FC_FID_FLOGI) { +- atomic_inc(&mp->stats.xid_not_found); ++ atomic_inc_unchecked(&mp->stats.xid_not_found); + goto rel; + } + sof = fr_sof(fp); +@@ -1455,7 +1455,7 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp) + sp->ssb_stat |= SSB_ST_RESP; + sp->id = fh->fh_seq_id; + } else if (sp->id != fh->fh_seq_id) { +- atomic_inc(&mp->stats.seq_not_found); ++ atomic_inc_unchecked(&mp->stats.seq_not_found); + goto rel; + } + +@@ -1519,9 +1519,9 @@ static void fc_exch_recv_resp(struct fc_exch_mgr *mp, struct fc_frame *fp) + sp = fc_seq_lookup_orig(mp, fp); /* doesn't hold sequence */ + + if (!sp) +- atomic_inc(&mp->stats.xid_not_found); ++ atomic_inc_unchecked(&mp->stats.xid_not_found); + else +- atomic_inc(&mp->stats.non_bls_resp); ++ atomic_inc_unchecked(&mp->stats.non_bls_resp); + + fc_frame_free(fp); + } +diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c +index d109cc3..09f4e7d 100644 +--- a/drivers/scsi/libsas/sas_ata.c ++++ b/drivers/scsi/libsas/sas_ata.c +@@ -529,7 +529,7 @@ static struct ata_port_operations sas_sata_ops = { + .postreset = ata_std_postreset, + .error_handler = ata_std_error_handler, + .post_internal_cmd = sas_ata_post_internal, +- .qc_defer = ata_std_qc_defer, ++ .qc_defer = ata_std_qc_defer, + .qc_prep = ata_noop_qc_prep, + .qc_issue = sas_ata_qc_issue, + .qc_fill_rtf = sas_ata_qc_fill_rtf, +diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h +index 3a1ffdd..8eb7c71 100644 +--- a/drivers/scsi/lpfc/lpfc.h ++++ b/drivers/scsi/lpfc/lpfc.h +@@ -413,7 +413,7 @@ struct lpfc_vport { + struct dentry *debug_nodelist; + struct dentry *vport_debugfs_root; + struct lpfc_debugfs_trc *disc_trc; +- atomic_t disc_trc_cnt; ++ atomic_unchecked_t disc_trc_cnt; + #endif + uint8_t stat_data_enabled; + uint8_t stat_data_blocked; +@@ -826,8 +826,8 @@ struct lpfc_hba { + struct timer_list fabric_block_timer; + unsigned long bit_flags; + #define FABRIC_COMANDS_BLOCKED 0 +- atomic_t num_rsrc_err; +- atomic_t num_cmd_success; ++ atomic_unchecked_t num_rsrc_err; ++ atomic_unchecked_t num_cmd_success; + unsigned long last_rsrc_error_time; + unsigned long last_ramp_down_time; + unsigned long last_ramp_up_time; +@@ -863,7 +863,7 @@ struct lpfc_hba { + + struct dentry *debug_slow_ring_trc; + struct lpfc_debugfs_trc *slow_ring_trc; +- atomic_t slow_ring_trc_cnt; ++ atomic_unchecked_t slow_ring_trc_cnt; + /* iDiag debugfs sub-directory */ + struct dentry *idiag_root; + struct dentry *idiag_pci_cfg; +diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c +index af04b0d..8f1a97e 100644 +--- a/drivers/scsi/lpfc/lpfc_debugfs.c ++++ b/drivers/scsi/lpfc/lpfc_debugfs.c +@@ -106,7 +106,7 @@ MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, + + #include <linux/debugfs.h> + +-static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); ++static atomic_unchecked_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); + static unsigned long lpfc_debugfs_start_time = 0L; + + /* iDiag */ +@@ -147,7 +147,7 @@ lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) + lpfc_debugfs_enable = 0; + + len = 0; +- index = (atomic_read(&vport->disc_trc_cnt) + 1) & ++ index = (atomic_read_unchecked(&vport->disc_trc_cnt) + 1) & + (lpfc_debugfs_max_disc_trc - 1); + for (i = index; i < lpfc_debugfs_max_disc_trc; i++) { + dtp = vport->disc_trc + i; +@@ -213,7 +213,7 @@ lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) + lpfc_debugfs_enable = 0; + + len = 0; +- index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) & ++ index = (atomic_read_unchecked(&phba->slow_ring_trc_cnt) + 1) & + (lpfc_debugfs_max_slow_ring_trc - 1); + for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) { + dtp = phba->slow_ring_trc + i; +@@ -636,14 +636,14 @@ lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, + !vport || !vport->disc_trc) + return; + +- index = atomic_inc_return(&vport->disc_trc_cnt) & ++ index = atomic_inc_return_unchecked(&vport->disc_trc_cnt) & + (lpfc_debugfs_max_disc_trc - 1); + dtp = vport->disc_trc + index; + dtp->fmt = fmt; + dtp->data1 = data1; + dtp->data2 = data2; + dtp->data3 = data3; +- dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); ++ dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt); + dtp->jif = jiffies; + #endif + return; +@@ -674,14 +674,14 @@ lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, + !phba || !phba->slow_ring_trc) + return; + +- index = atomic_inc_return(&phba->slow_ring_trc_cnt) & ++ index = atomic_inc_return_unchecked(&phba->slow_ring_trc_cnt) & + (lpfc_debugfs_max_slow_ring_trc - 1); + dtp = phba->slow_ring_trc + index; + dtp->fmt = fmt; + dtp->data1 = data1; + dtp->data2 = data2; + dtp->data3 = data3; +- dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); ++ dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt); + dtp->jif = jiffies; + #endif + return; +@@ -4090,7 +4090,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) + "slow_ring buffer\n"); + goto debug_failed; + } +- atomic_set(&phba->slow_ring_trc_cnt, 0); ++ atomic_set_unchecked(&phba->slow_ring_trc_cnt, 0); + memset(phba->slow_ring_trc, 0, + (sizeof(struct lpfc_debugfs_trc) * + lpfc_debugfs_max_slow_ring_trc)); +@@ -4136,7 +4136,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) + "buffer\n"); + goto debug_failed; + } +- atomic_set(&vport->disc_trc_cnt, 0); ++ atomic_set_unchecked(&vport->disc_trc_cnt, 0); + + snprintf(name, sizeof(name), "discovery_trace"); + vport->debug_disc_trc = +diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c +index 9598fdc..7e9f3d9 100644 +--- a/drivers/scsi/lpfc/lpfc_init.c ++++ b/drivers/scsi/lpfc/lpfc_init.c +@@ -10266,8 +10266,10 @@ lpfc_init(void) + "misc_register returned with status %d", error); + + if (lpfc_enable_npiv) { +- lpfc_transport_functions.vport_create = lpfc_vport_create; +- lpfc_transport_functions.vport_delete = lpfc_vport_delete; ++ pax_open_kernel(); ++ *(void **)&lpfc_transport_functions.vport_create = lpfc_vport_create; ++ *(void **)&lpfc_transport_functions.vport_delete = lpfc_vport_delete; ++ pax_close_kernel(); + } + lpfc_transport_template = + fc_attach_transport(&lpfc_transport_functions); +diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c +index 88f3a83..686d3fa 100644 +--- a/drivers/scsi/lpfc/lpfc_scsi.c ++++ b/drivers/scsi/lpfc/lpfc_scsi.c +@@ -311,7 +311,7 @@ lpfc_rampdown_queue_depth(struct lpfc_hba *phba) + uint32_t evt_posted; + + spin_lock_irqsave(&phba->hbalock, flags); +- atomic_inc(&phba->num_rsrc_err); ++ atomic_inc_unchecked(&phba->num_rsrc_err); + phba->last_rsrc_error_time = jiffies; + + if ((phba->last_ramp_down_time + QUEUE_RAMP_DOWN_INTERVAL) > jiffies) { +@@ -352,7 +352,7 @@ lpfc_rampup_queue_depth(struct lpfc_vport *vport, + unsigned long flags; + struct lpfc_hba *phba = vport->phba; + uint32_t evt_posted; +- atomic_inc(&phba->num_cmd_success); ++ atomic_inc_unchecked(&phba->num_cmd_success); + + if (vport->cfg_lun_queue_depth <= queue_depth) + return; +@@ -396,8 +396,8 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba) + unsigned long num_rsrc_err, num_cmd_success; + int i; + +- num_rsrc_err = atomic_read(&phba->num_rsrc_err); +- num_cmd_success = atomic_read(&phba->num_cmd_success); ++ num_rsrc_err = atomic_read_unchecked(&phba->num_rsrc_err); ++ num_cmd_success = atomic_read_unchecked(&phba->num_cmd_success); + + vports = lpfc_create_vport_work_array(phba); + if (vports != NULL) +@@ -417,8 +417,8 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba) + } + } + lpfc_destroy_vport_work_array(phba, vports); +- atomic_set(&phba->num_rsrc_err, 0); +- atomic_set(&phba->num_cmd_success, 0); ++ atomic_set_unchecked(&phba->num_rsrc_err, 0); ++ atomic_set_unchecked(&phba->num_cmd_success, 0); + } + + /** +@@ -452,8 +452,8 @@ lpfc_ramp_up_queue_handler(struct lpfc_hba *phba) + } + } + lpfc_destroy_vport_work_array(phba, vports); +- atomic_set(&phba->num_rsrc_err, 0); +- atomic_set(&phba->num_cmd_success, 0); ++ atomic_set_unchecked(&phba->num_rsrc_err, 0); ++ atomic_set_unchecked(&phba->num_cmd_success, 0); + } + + /** +diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c +index ea8a0b4..812a124 100644 +--- a/drivers/scsi/pmcraid.c ++++ b/drivers/scsi/pmcraid.c +@@ -200,8 +200,8 @@ static int pmcraid_slave_alloc(struct scsi_device *scsi_dev) + res->scsi_dev = scsi_dev; + scsi_dev->hostdata = res; + res->change_detected = 0; +- atomic_set(&res->read_failures, 0); +- atomic_set(&res->write_failures, 0); ++ atomic_set_unchecked(&res->read_failures, 0); ++ atomic_set_unchecked(&res->write_failures, 0); + rc = 0; + } + spin_unlock_irqrestore(&pinstance->resource_lock, lock_flags); +@@ -2676,9 +2676,9 @@ static int pmcraid_error_handler(struct pmcraid_cmd *cmd) + + /* If this was a SCSI read/write command keep count of errors */ + if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_READ_CMD) +- atomic_inc(&res->read_failures); ++ atomic_inc_unchecked(&res->read_failures); + else if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_WRITE_CMD) +- atomic_inc(&res->write_failures); ++ atomic_inc_unchecked(&res->write_failures); + + if (!RES_IS_GSCSI(res->cfg_entry) && + masked_ioasc != PMCRAID_IOASC_HW_DEVICE_BUS_STATUS_ERROR) { +@@ -3534,7 +3534,7 @@ static int pmcraid_queuecommand_lck( + * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses + * hrrq_id assigned here in queuecommand + */ +- ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) % ++ ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) % + pinstance->num_hrrq; + cmd->cmd_done = pmcraid_io_done; + +@@ -3859,7 +3859,7 @@ static long pmcraid_ioctl_passthrough( + * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses + * hrrq_id assigned here in queuecommand + */ +- ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) % ++ ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) % + pinstance->num_hrrq; + + if (request_size) { +@@ -4497,7 +4497,7 @@ static void pmcraid_worker_function(struct work_struct *workp) + + pinstance = container_of(workp, struct pmcraid_instance, worker_q); + /* add resources only after host is added into system */ +- if (!atomic_read(&pinstance->expose_resources)) ++ if (!atomic_read_unchecked(&pinstance->expose_resources)) + return; + + fw_version = be16_to_cpu(pinstance->inq_data->fw_version); +@@ -5331,8 +5331,8 @@ static int __devinit pmcraid_init_instance( + init_waitqueue_head(&pinstance->reset_wait_q); + + atomic_set(&pinstance->outstanding_cmds, 0); +- atomic_set(&pinstance->last_message_id, 0); +- atomic_set(&pinstance->expose_resources, 0); ++ atomic_set_unchecked(&pinstance->last_message_id, 0); ++ atomic_set_unchecked(&pinstance->expose_resources, 0); + + INIT_LIST_HEAD(&pinstance->free_res_q); + INIT_LIST_HEAD(&pinstance->used_res_q); +@@ -6047,7 +6047,7 @@ static int __devinit pmcraid_probe( + /* Schedule worker thread to handle CCN and take care of adding and + * removing devices to OS + */ +- atomic_set(&pinstance->expose_resources, 1); ++ atomic_set_unchecked(&pinstance->expose_resources, 1); + schedule_work(&pinstance->worker_q); + return rc; + +diff --git a/drivers/scsi/pmcraid.h b/drivers/scsi/pmcraid.h +index e1d150f..6c6df44 100644 +--- a/drivers/scsi/pmcraid.h ++++ b/drivers/scsi/pmcraid.h +@@ -748,7 +748,7 @@ struct pmcraid_instance { + struct pmcraid_isr_param hrrq_vector[PMCRAID_NUM_MSIX_VECTORS]; + + /* Message id as filled in last fired IOARCB, used to identify HRRQ */ +- atomic_t last_message_id; ++ atomic_unchecked_t last_message_id; + + /* configuration table */ + struct pmcraid_config_table *cfg_table; +@@ -777,7 +777,7 @@ struct pmcraid_instance { + atomic_t outstanding_cmds; + + /* should add/delete resources to mid-layer now ?*/ +- atomic_t expose_resources; ++ atomic_unchecked_t expose_resources; + + + +@@ -813,8 +813,8 @@ struct pmcraid_resource_entry { + struct pmcraid_config_table_entry_ext cfg_entry_ext; + }; + struct scsi_device *scsi_dev; /* Link scsi_device structure */ +- atomic_t read_failures; /* count of failed READ commands */ +- atomic_t write_failures; /* count of failed WRITE commands */ ++ atomic_unchecked_t read_failures; /* count of failed READ commands */ ++ atomic_unchecked_t write_failures; /* count of failed WRITE commands */ + + /* To indicate add/delete/modify during CCN */ + u8 change_detected; +diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h +index a244303..6015eb7 100644 +--- a/drivers/scsi/qla2xxx/qla_def.h ++++ b/drivers/scsi/qla2xxx/qla_def.h +@@ -2264,7 +2264,7 @@ struct isp_operations { + int (*start_scsi) (srb_t *); + int (*abort_isp) (struct scsi_qla_host *); + int (*iospace_config)(struct qla_hw_data*); +-}; ++} __no_const; + + /* MSI-X Support *************************************************************/ + +diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h +index 7f2492e..5113877 100644 +--- a/drivers/scsi/qla4xxx/ql4_def.h ++++ b/drivers/scsi/qla4xxx/ql4_def.h +@@ -268,7 +268,7 @@ struct ddb_entry { + * (4000 only) */ + atomic_t relogin_timer; /* Max Time to wait for + * relogin to complete */ +- atomic_t relogin_retry_count; /* Num of times relogin has been ++ atomic_unchecked_t relogin_retry_count; /* Num of times relogin has been + * retried */ + uint32_t default_time2wait; /* Default Min time between + * relogins (+aens) */ +diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c +index ee47820..a83b1f4 100644 +--- a/drivers/scsi/qla4xxx/ql4_os.c ++++ b/drivers/scsi/qla4xxx/ql4_os.c +@@ -2551,12 +2551,12 @@ static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) + */ + if (!iscsi_is_session_online(cls_sess)) { + /* Reset retry relogin timer */ +- atomic_inc(&ddb_entry->relogin_retry_count); ++ atomic_inc_unchecked(&ddb_entry->relogin_retry_count); + DEBUG2(ql4_printk(KERN_INFO, ha, + "%s: index[%d] relogin timed out-retrying" + " relogin (%d), retry (%d)\n", __func__, + ddb_entry->fw_ddb_index, +- atomic_read(&ddb_entry->relogin_retry_count), ++ atomic_read_unchecked(&ddb_entry->relogin_retry_count), + ddb_entry->default_time2wait + 4)); + set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); + atomic_set(&ddb_entry->retry_relogin_timer, +@@ -4453,7 +4453,7 @@ static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, + + atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); + atomic_set(&ddb_entry->relogin_timer, 0); +- atomic_set(&ddb_entry->relogin_retry_count, 0); ++ atomic_set_unchecked(&ddb_entry->relogin_retry_count, 0); + def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); + ddb_entry->default_relogin_timeout = + (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? +diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c +index 07322ec..91ccc23 100644 +--- a/drivers/scsi/scsi.c ++++ b/drivers/scsi/scsi.c +@@ -655,7 +655,7 @@ int scsi_dispatch_cmd(struct scsi_cmnd *cmd) + unsigned long timeout; + int rtn = 0; + +- atomic_inc(&cmd->device->iorequest_cnt); ++ atomic_inc_unchecked(&cmd->device->iorequest_cnt); + + /* check if the device is still usable */ + if (unlikely(cmd->device->sdev_state == SDEV_DEL)) { +diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c +index 4037fd5..a19fcc7 100644 +--- a/drivers/scsi/scsi_lib.c ++++ b/drivers/scsi/scsi_lib.c +@@ -1415,7 +1415,7 @@ static void scsi_kill_request(struct request *req, struct request_queue *q) + shost = sdev->host; + scsi_init_cmd_errh(cmd); + cmd->result = DID_NO_CONNECT << 16; +- atomic_inc(&cmd->device->iorequest_cnt); ++ atomic_inc_unchecked(&cmd->device->iorequest_cnt); + + /* + * SCSI request completion path will do scsi_device_unbusy(), +@@ -1441,9 +1441,9 @@ static void scsi_softirq_done(struct request *rq) + + INIT_LIST_HEAD(&cmd->eh_entry); + +- atomic_inc(&cmd->device->iodone_cnt); ++ atomic_inc_unchecked(&cmd->device->iodone_cnt); + if (cmd->result) +- atomic_inc(&cmd->device->ioerr_cnt); ++ atomic_inc_unchecked(&cmd->device->ioerr_cnt); + + disposition = scsi_decide_disposition(cmd); + if (disposition != SUCCESS && +diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c +index 04c2a27..9d8bd66 100644 +--- a/drivers/scsi/scsi_sysfs.c ++++ b/drivers/scsi/scsi_sysfs.c +@@ -660,7 +660,7 @@ show_iostat_##field(struct device *dev, struct device_attribute *attr, \ + char *buf) \ + { \ + struct scsi_device *sdev = to_scsi_device(dev); \ +- unsigned long long count = atomic_read(&sdev->field); \ ++ unsigned long long count = atomic_read_unchecked(&sdev->field); \ + return snprintf(buf, 20, "0x%llx\n", count); \ + } \ + static DEVICE_ATTR(field, S_IRUGO, show_iostat_##field, NULL) +diff --git a/drivers/scsi/scsi_tgt_lib.c b/drivers/scsi/scsi_tgt_lib.c +index 84a1fdf..693b0d6 100644 +--- a/drivers/scsi/scsi_tgt_lib.c ++++ b/drivers/scsi/scsi_tgt_lib.c +@@ -362,7 +362,7 @@ static int scsi_map_user_pages(struct scsi_tgt_cmd *tcmd, struct scsi_cmnd *cmd, + int err; + + dprintk("%lx %u\n", uaddr, len); +- err = blk_rq_map_user(q, rq, NULL, (void *)uaddr, len, GFP_KERNEL); ++ err = blk_rq_map_user(q, rq, NULL, (void __user *)uaddr, len, GFP_KERNEL); + if (err) { + /* + * TODO: need to fixup sg_tablesize, max_segment_size, +diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c +index 80fbe2a..efa223b 100644 +--- a/drivers/scsi/scsi_transport_fc.c ++++ b/drivers/scsi/scsi_transport_fc.c +@@ -498,7 +498,7 @@ static DECLARE_TRANSPORT_CLASS(fc_vport_class, + * Netlink Infrastructure + */ + +-static atomic_t fc_event_seq; ++static atomic_unchecked_t fc_event_seq; + + /** + * fc_get_event_number - Obtain the next sequential FC event number +@@ -511,7 +511,7 @@ static atomic_t fc_event_seq; + u32 + fc_get_event_number(void) + { +- return atomic_add_return(1, &fc_event_seq); ++ return atomic_add_return_unchecked(1, &fc_event_seq); + } + EXPORT_SYMBOL(fc_get_event_number); + +@@ -659,7 +659,7 @@ static __init int fc_transport_init(void) + { + int error; + +- atomic_set(&fc_event_seq, 0); ++ atomic_set_unchecked(&fc_event_seq, 0); + + error = transport_class_register(&fc_host_class); + if (error) +@@ -849,7 +849,7 @@ static int fc_str_to_dev_loss(const char *buf, unsigned long *val) + char *cp; + + *val = simple_strtoul(buf, &cp, 0); +- if ((*cp && (*cp != '\n')) || (*val < 0)) ++ if (*cp && (*cp != '\n')) + return -EINVAL; + /* + * Check for overflow; dev_loss_tmo is u32 +diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c +index 1cf640e..78e9014 100644 +--- a/drivers/scsi/scsi_transport_iscsi.c ++++ b/drivers/scsi/scsi_transport_iscsi.c +@@ -79,7 +79,7 @@ struct iscsi_internal { + struct transport_container session_cont; + }; + +-static atomic_t iscsi_session_nr; /* sysfs session id for next new session */ ++static atomic_unchecked_t iscsi_session_nr; /* sysfs session id for next new session */ + static struct workqueue_struct *iscsi_eh_timer_workq; + + static DEFINE_IDA(iscsi_sess_ida); +@@ -1064,7 +1064,7 @@ int iscsi_add_session(struct iscsi_cls_session *session, unsigned int target_id) + int err; + + ihost = shost->shost_data; +- session->sid = atomic_add_return(1, &iscsi_session_nr); ++ session->sid = atomic_add_return_unchecked(1, &iscsi_session_nr); + + if (target_id == ISCSI_MAX_TARGET) { + id = ida_simple_get(&iscsi_sess_ida, 0, 0, GFP_KERNEL); +@@ -2940,7 +2940,7 @@ static __init int iscsi_transport_init(void) + printk(KERN_INFO "Loading iSCSI transport class v%s.\n", + ISCSI_TRANSPORT_VERSION); + +- atomic_set(&iscsi_session_nr, 0); ++ atomic_set_unchecked(&iscsi_session_nr, 0); + + err = class_register(&iscsi_transport_class); + if (err) +diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c +index 21a045e..ec89e03 100644 +--- a/drivers/scsi/scsi_transport_srp.c ++++ b/drivers/scsi/scsi_transport_srp.c +@@ -33,7 +33,7 @@ + #include "scsi_transport_srp_internal.h" + + struct srp_host_attrs { +- atomic_t next_port_id; ++ atomic_unchecked_t next_port_id; + }; + #define to_srp_host_attrs(host) ((struct srp_host_attrs *)(host)->shost_data) + +@@ -62,7 +62,7 @@ static int srp_host_setup(struct transport_container *tc, struct device *dev, + struct Scsi_Host *shost = dev_to_shost(dev); + struct srp_host_attrs *srp_host = to_srp_host_attrs(shost); + +- atomic_set(&srp_host->next_port_id, 0); ++ atomic_set_unchecked(&srp_host->next_port_id, 0); + return 0; + } + +@@ -211,7 +211,7 @@ struct srp_rport *srp_rport_add(struct Scsi_Host *shost, + memcpy(rport->port_id, ids->port_id, sizeof(rport->port_id)); + rport->roles = ids->roles; + +- id = atomic_inc_return(&to_srp_host_attrs(shost)->next_port_id); ++ id = atomic_inc_return_unchecked(&to_srp_host_attrs(shost)->next_port_id); + dev_set_name(&rport->dev, "port-%d:%d", shost->host_no, id); + + transport_setup_device(&rport->dev); +diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c +index eacd46b..e3f4d62 100644 +--- a/drivers/scsi/sg.c ++++ b/drivers/scsi/sg.c +@@ -1077,7 +1077,7 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) + sdp->disk->disk_name, + MKDEV(SCSI_GENERIC_MAJOR, sdp->index), + NULL, +- (char *)arg); ++ (char __user *)arg); + case BLKTRACESTART: + return blk_trace_startstop(sdp->device->request_queue, 1); + case BLKTRACESTOP: +@@ -2312,7 +2312,7 @@ struct sg_proc_leaf { + const struct file_operations * fops; + }; + +-static struct sg_proc_leaf sg_proc_leaf_arr[] = { ++static const struct sg_proc_leaf sg_proc_leaf_arr[] = { + {"allow_dio", &adio_fops}, + {"debug", &debug_fops}, + {"def_reserved_size", &dressz_fops}, +@@ -2332,7 +2332,7 @@ sg_proc_init(void) + if (!sg_proc_sgp) + return 1; + for (k = 0; k < num_leaves; ++k) { +- struct sg_proc_leaf *leaf = &sg_proc_leaf_arr[k]; ++ const struct sg_proc_leaf *leaf = &sg_proc_leaf_arr[k]; + umode_t mask = leaf->fops->write ? S_IRUGO | S_IWUSR : S_IRUGO; + proc_create(leaf->name, mask, sg_proc_sgp, leaf->fops); + } +diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c +index 3d8f662..070f1a5 100644 +--- a/drivers/spi/spi.c ++++ b/drivers/spi/spi.c +@@ -1361,7 +1361,7 @@ int spi_bus_unlock(struct spi_master *master) + EXPORT_SYMBOL_GPL(spi_bus_unlock); + + /* portable code must never pass more than 32 bytes */ +-#define SPI_BUFSIZ max(32,SMP_CACHE_BYTES) ++#define SPI_BUFSIZ max(32UL,SMP_CACHE_BYTES) + + static u8 *buf; + +diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c +index d91751f..a3a9e36 100644 +--- a/drivers/staging/octeon/ethernet-rx.c ++++ b/drivers/staging/octeon/ethernet-rx.c +@@ -421,11 +421,11 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget) + /* Increment RX stats for virtual ports */ + if (work->ipprt >= CVMX_PIP_NUM_INPUT_PORTS) { + #ifdef CONFIG_64BIT +- atomic64_add(1, (atomic64_t *)&priv->stats.rx_packets); +- atomic64_add(skb->len, (atomic64_t *)&priv->stats.rx_bytes); ++ atomic64_add_unchecked(1, (atomic64_unchecked_t *)&priv->stats.rx_packets); ++ atomic64_add_unchecked(skb->len, (atomic64_unchecked_t *)&priv->stats.rx_bytes); + #else +- atomic_add(1, (atomic_t *)&priv->stats.rx_packets); +- atomic_add(skb->len, (atomic_t *)&priv->stats.rx_bytes); ++ atomic_add_unchecked(1, (atomic_unchecked_t *)&priv->stats.rx_packets); ++ atomic_add_unchecked(skb->len, (atomic_unchecked_t *)&priv->stats.rx_bytes); + #endif + } + netif_receive_skb(skb); +@@ -437,9 +437,9 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget) + dev->name); + */ + #ifdef CONFIG_64BIT +- atomic64_add(1, (atomic64_t *)&priv->stats.rx_dropped); ++ atomic64_unchecked_add(1, (atomic64_unchecked_t *)&priv->stats.rx_dropped); + #else +- atomic_add(1, (atomic_t *)&priv->stats.rx_dropped); ++ atomic_add_unchecked(1, (atomic_unchecked_t *)&priv->stats.rx_dropped); + #endif + dev_kfree_skb_irq(skb); + } +diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c +index 60cba81..71eb239 100644 +--- a/drivers/staging/octeon/ethernet.c ++++ b/drivers/staging/octeon/ethernet.c +@@ -259,11 +259,11 @@ static struct net_device_stats *cvm_oct_common_get_stats(struct net_device *dev) + * since the RX tasklet also increments it. + */ + #ifdef CONFIG_64BIT +- atomic64_add(rx_status.dropped_packets, +- (atomic64_t *)&priv->stats.rx_dropped); ++ atomic64_add_unchecked(rx_status.dropped_packets, ++ (atomic64_unchecked_t *)&priv->stats.rx_dropped); + #else +- atomic_add(rx_status.dropped_packets, +- (atomic_t *)&priv->stats.rx_dropped); ++ atomic_add_unchecked(rx_status.dropped_packets, ++ (atomic_unchecked_t *)&priv->stats.rx_dropped); + #endif + } + +diff --git a/drivers/staging/rtl8712/rtl871x_io.h b/drivers/staging/rtl8712/rtl871x_io.h +index d3d8727..f9327bb8 100644 +--- a/drivers/staging/rtl8712/rtl871x_io.h ++++ b/drivers/staging/rtl8712/rtl871x_io.h +@@ -108,7 +108,7 @@ struct _io_ops { + u8 *pmem); + u32 (*_write_port)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, + u8 *pmem); +-}; ++} __no_const; + + struct io_req { + struct list_head list; +diff --git a/drivers/staging/sbe-2t3e3/netdev.c b/drivers/staging/sbe-2t3e3/netdev.c +index c7b5e8b..783d6cb 100644 +--- a/drivers/staging/sbe-2t3e3/netdev.c ++++ b/drivers/staging/sbe-2t3e3/netdev.c +@@ -51,7 +51,7 @@ int t3e3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) + t3e3_if_config(sc, cmd_2t3e3, (char *)&param, &resp, &rlen); + + if (rlen) +- if (copy_to_user(data, &resp, rlen)) ++ if (rlen > sizeof resp || copy_to_user(data, &resp, rlen)) + return -EFAULT; + + return 0; +diff --git a/drivers/staging/speakup/speakup_soft.c b/drivers/staging/speakup/speakup_soft.c +index 42cdafe..2769103 100644 +--- a/drivers/staging/speakup/speakup_soft.c ++++ b/drivers/staging/speakup/speakup_soft.c +@@ -241,11 +241,11 @@ static ssize_t softsynth_read(struct file *fp, char *buf, size_t count, + break; + } else if (!initialized) { + if (*init) { +- ch = *init; + init++; + } else { + initialized = 1; + } ++ ch = *init; + } else { + ch = synth_buffer_getc(); + } +diff --git a/drivers/staging/usbip/usbip_common.h b/drivers/staging/usbip/usbip_common.h +index c7b888c..c94be93 100644 +--- a/drivers/staging/usbip/usbip_common.h ++++ b/drivers/staging/usbip/usbip_common.h +@@ -289,7 +289,7 @@ struct usbip_device { + void (*shutdown)(struct usbip_device *); + void (*reset)(struct usbip_device *); + void (*unusable)(struct usbip_device *); +- } eh_ops; ++ } __no_const eh_ops; + }; + + /* usbip_common.c */ +diff --git a/drivers/staging/usbip/vhci.h b/drivers/staging/usbip/vhci.h +index 88b3298..3783eee 100644 +--- a/drivers/staging/usbip/vhci.h ++++ b/drivers/staging/usbip/vhci.h +@@ -88,7 +88,7 @@ struct vhci_hcd { + unsigned resuming:1; + unsigned long re_timeout; + +- atomic_t seqnum; ++ atomic_unchecked_t seqnum; + + /* + * NOTE: +diff --git a/drivers/staging/usbip/vhci_hcd.c b/drivers/staging/usbip/vhci_hcd.c +index dca9bf1..80735c9 100644 +--- a/drivers/staging/usbip/vhci_hcd.c ++++ b/drivers/staging/usbip/vhci_hcd.c +@@ -488,7 +488,7 @@ static void vhci_tx_urb(struct urb *urb) + return; + } + +- priv->seqnum = atomic_inc_return(&the_controller->seqnum); ++ priv->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum); + if (priv->seqnum == 0xffff) + dev_info(&urb->dev->dev, "seqnum max\n"); + +@@ -740,7 +740,7 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) + return -ENOMEM; + } + +- unlink->seqnum = atomic_inc_return(&the_controller->seqnum); ++ unlink->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum); + if (unlink->seqnum == 0xffff) + pr_info("seqnum max\n"); + +@@ -928,7 +928,7 @@ static int vhci_start(struct usb_hcd *hcd) + vdev->rhport = rhport; + } + +- atomic_set(&vhci->seqnum, 0); ++ atomic_set_unchecked(&vhci->seqnum, 0); + spin_lock_init(&vhci->lock); + + hcd->power_budget = 0; /* no limit */ +diff --git a/drivers/staging/usbip/vhci_rx.c b/drivers/staging/usbip/vhci_rx.c +index f5fba732..210a16c 100644 +--- a/drivers/staging/usbip/vhci_rx.c ++++ b/drivers/staging/usbip/vhci_rx.c +@@ -77,7 +77,7 @@ static void vhci_recv_ret_submit(struct vhci_device *vdev, + if (!urb) { + pr_err("cannot find a urb of seqnum %u\n", pdu->base.seqnum); + pr_info("max seqnum %d\n", +- atomic_read(&the_controller->seqnum)); ++ atomic_read_unchecked(&the_controller->seqnum)); + usbip_event_add(ud, VDEV_EVENT_ERROR_TCP); + return; + } +diff --git a/drivers/staging/vt6655/hostap.c b/drivers/staging/vt6655/hostap.c +index 7735027..30eed13 100644 +--- a/drivers/staging/vt6655/hostap.c ++++ b/drivers/staging/vt6655/hostap.c +@@ -79,14 +79,13 @@ static int msglevel =MSG_LEVEL_INFO; + * + */ + ++static net_device_ops_no_const apdev_netdev_ops; ++ + static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked) + { + PSDevice apdev_priv; + struct net_device *dev = pDevice->dev; + int ret; +- const struct net_device_ops apdev_netdev_ops = { +- .ndo_start_xmit = pDevice->tx_80211, +- }; + + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name); + +@@ -98,6 +97,8 @@ static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked) + *apdev_priv = *pDevice; + memcpy(pDevice->apdev->dev_addr, dev->dev_addr, ETH_ALEN); + ++ /* only half broken now */ ++ apdev_netdev_ops.ndo_start_xmit = pDevice->tx_80211; + pDevice->apdev->netdev_ops = &apdev_netdev_ops; + + pDevice->apdev->type = ARPHRD_IEEE80211; +diff --git a/drivers/staging/vt6656/hostap.c b/drivers/staging/vt6656/hostap.c +index 51b5adf..098e320 100644 +--- a/drivers/staging/vt6656/hostap.c ++++ b/drivers/staging/vt6656/hostap.c +@@ -80,14 +80,13 @@ static int msglevel =MSG_LEVEL_INFO; + * + */ + ++static net_device_ops_no_const apdev_netdev_ops; ++ + static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked) + { + PSDevice apdev_priv; + struct net_device *dev = pDevice->dev; + int ret; +- const struct net_device_ops apdev_netdev_ops = { +- .ndo_start_xmit = pDevice->tx_80211, +- }; + + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name); + +@@ -99,6 +98,8 @@ static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked) + *apdev_priv = *pDevice; + memcpy(pDevice->apdev->dev_addr, dev->dev_addr, ETH_ALEN); + ++ /* only half broken now */ ++ apdev_netdev_ops.ndo_start_xmit = pDevice->tx_80211; + pDevice->apdev->netdev_ops = &apdev_netdev_ops; + + pDevice->apdev->type = ARPHRD_IEEE80211; +diff --git a/drivers/staging/wlan-ng/hfa384x_usb.c b/drivers/staging/wlan-ng/hfa384x_usb.c +index 7843dfd..3db105f 100644 +--- a/drivers/staging/wlan-ng/hfa384x_usb.c ++++ b/drivers/staging/wlan-ng/hfa384x_usb.c +@@ -204,7 +204,7 @@ static void unlocked_usbctlx_complete(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx); + + struct usbctlx_completor { + int (*complete) (struct usbctlx_completor *); +-}; ++} __no_const; + + static int + hfa384x_usbctlx_complete_sync(hfa384x_t *hw, +diff --git a/drivers/staging/zcache/tmem.c b/drivers/staging/zcache/tmem.c +index 1ca66ea..76f1343 100644 +--- a/drivers/staging/zcache/tmem.c ++++ b/drivers/staging/zcache/tmem.c +@@ -39,7 +39,7 @@ + * A tmem host implementation must use this function to register callbacks + * for memory allocation. + */ +-static struct tmem_hostops tmem_hostops; ++static tmem_hostops_no_const tmem_hostops; + + static void tmem_objnode_tree_init(void); + +@@ -53,7 +53,7 @@ void tmem_register_hostops(struct tmem_hostops *m) + * A tmem host implementation must use this function to register + * callbacks for a page-accessible memory (PAM) implementation + */ +-static struct tmem_pamops tmem_pamops; ++static tmem_pamops_no_const tmem_pamops; + + void tmem_register_pamops(struct tmem_pamops *m) + { +diff --git a/drivers/staging/zcache/tmem.h b/drivers/staging/zcache/tmem.h +index 0d4aa82..f7832d4 100644 +--- a/drivers/staging/zcache/tmem.h ++++ b/drivers/staging/zcache/tmem.h +@@ -180,6 +180,7 @@ struct tmem_pamops { + void (*new_obj)(struct tmem_obj *); + int (*replace_in_obj)(void *, struct tmem_obj *); + }; ++typedef struct tmem_pamops __no_const tmem_pamops_no_const; + extern void tmem_register_pamops(struct tmem_pamops *m); + + /* memory allocation methods provided by the host implementation */ +@@ -189,6 +190,7 @@ struct tmem_hostops { + struct tmem_objnode *(*objnode_alloc)(struct tmem_pool *); + void (*objnode_free)(struct tmem_objnode *, struct tmem_pool *); + }; ++typedef struct tmem_hostops __no_const tmem_hostops_no_const; + extern void tmem_register_hostops(struct tmem_hostops *m); + + /* core tmem accessor functions */ +diff --git a/drivers/target/target_core_cdb.c b/drivers/target/target_core_cdb.c +index 30a6770..fa323f8 100644 +--- a/drivers/target/target_core_cdb.c ++++ b/drivers/target/target_core_cdb.c +@@ -1107,7 +1107,7 @@ int target_emulate_write_same(struct se_task *task) + if (num_blocks != 0) + range = num_blocks; + else +- range = (dev->transport->get_blocks(dev) - lba); ++ range = (dev->transport->get_blocks(dev) - lba) + 1; + + pr_debug("WRITE_SAME UNMAP: LBA: %llu Range: %llu\n", + (unsigned long long)lba, (unsigned long long)range); +diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c +index c3148b1..89d10e6 100644 +--- a/drivers/target/target_core_pr.c ++++ b/drivers/target/target_core_pr.c +@@ -2038,7 +2038,7 @@ static int __core_scsi3_write_aptpl_to_file( + if (IS_ERR(file) || !file || !file->f_dentry) { + pr_err("filp_open(%s) for APTPL metadata" + " failed\n", path); +- return (PTR_ERR(file) < 0 ? PTR_ERR(file) : -ENOENT); ++ return IS_ERR(file) ? PTR_ERR(file) : -ENOENT; + } + + iov[0].iov_base = &buf[0]; +@@ -3826,7 +3826,7 @@ int target_scsi3_emulate_pr_out(struct se_task *task) + " SPC-2 reservation is held, returning" + " RESERVATION_CONFLICT\n"); + cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT; +- ret = EINVAL; ++ ret = -EINVAL; + goto out; + } + +@@ -3836,7 +3836,8 @@ int target_scsi3_emulate_pr_out(struct se_task *task) + */ + if (!cmd->se_sess) { + cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; +- return -EINVAL; ++ ret = -EINVAL; ++ goto out; + } + + if (cmd->data_length < 24) { +diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c +index f015839..b15dfc4 100644 +--- a/drivers/target/target_core_tmr.c ++++ b/drivers/target/target_core_tmr.c +@@ -327,7 +327,7 @@ static void core_tmr_drain_task_list( + cmd->se_tfo->get_task_tag(cmd), cmd->pr_res_key, + cmd->t_task_list_num, + atomic_read(&cmd->t_task_cdbs_left), +- atomic_read(&cmd->t_task_cdbs_sent), ++ atomic_read_unchecked(&cmd->t_task_cdbs_sent), + (cmd->transport_state & CMD_T_ACTIVE) != 0, + (cmd->transport_state & CMD_T_STOP) != 0, + (cmd->transport_state & CMD_T_SENT) != 0); +diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c +index 443704f..92d3517 100644 +--- a/drivers/target/target_core_transport.c ++++ b/drivers/target/target_core_transport.c +@@ -1355,7 +1355,7 @@ struct se_device *transport_add_device_to_core_hba( + spin_lock_init(&dev->se_port_lock); + spin_lock_init(&dev->se_tmr_lock); + spin_lock_init(&dev->qf_cmd_lock); +- atomic_set(&dev->dev_ordered_id, 0); ++ atomic_set_unchecked(&dev->dev_ordered_id, 0); + + se_dev_set_default_attribs(dev, dev_limits); + +@@ -1542,7 +1542,7 @@ static int transport_check_alloc_task_attr(struct se_cmd *cmd) + * Used to determine when ORDERED commands should go from + * Dormant to Active status. + */ +- cmd->se_ordered_id = atomic_inc_return(&cmd->se_dev->dev_ordered_id); ++ cmd->se_ordered_id = atomic_inc_return_unchecked(&cmd->se_dev->dev_ordered_id); + smp_mb__after_atomic_inc(); + pr_debug("Allocated se_ordered_id: %u for Task Attr: 0x%02x on %s\n", + cmd->se_ordered_id, cmd->sam_task_attr, +@@ -1956,7 +1956,7 @@ void transport_generic_request_failure(struct se_cmd *cmd) + " CMD_T_ACTIVE: %d CMD_T_STOP: %d CMD_T_SENT: %d\n", + cmd->t_task_list_num, + atomic_read(&cmd->t_task_cdbs_left), +- atomic_read(&cmd->t_task_cdbs_sent), ++ atomic_read_unchecked(&cmd->t_task_cdbs_sent), + atomic_read(&cmd->t_task_cdbs_ex_left), + (cmd->transport_state & CMD_T_ACTIVE) != 0, + (cmd->transport_state & CMD_T_STOP) != 0, +@@ -2216,9 +2216,9 @@ check_depth: + cmd = task->task_se_cmd; + spin_lock_irqsave(&cmd->t_state_lock, flags); + task->task_flags |= (TF_ACTIVE | TF_SENT); +- atomic_inc(&cmd->t_task_cdbs_sent); ++ atomic_inc_unchecked(&cmd->t_task_cdbs_sent); + +- if (atomic_read(&cmd->t_task_cdbs_sent) == ++ if (atomic_read_unchecked(&cmd->t_task_cdbs_sent) == + cmd->t_task_list_num) + cmd->transport_state |= CMD_T_SENT; + +diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c +index a375f25..da90f64 100644 +--- a/drivers/target/tcm_fc/tfc_cmd.c ++++ b/drivers/target/tcm_fc/tfc_cmd.c +@@ -240,6 +240,8 @@ u32 ft_get_task_tag(struct se_cmd *se_cmd) + { + struct ft_cmd *cmd = container_of(se_cmd, struct ft_cmd, se_cmd); + ++ if (cmd->aborted) ++ return ~0; + return fc_seq_exch(cmd->seq)->rxid; + } + +diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c +index 3436436..772237b 100644 +--- a/drivers/tty/hvc/hvcs.c ++++ b/drivers/tty/hvc/hvcs.c +@@ -83,6 +83,7 @@ + #include <asm/hvcserver.h> + #include <asm/uaccess.h> + #include <asm/vio.h> ++#include <asm/local.h> + + /* + * 1.3.0 -> 1.3.1 In hvcs_open memset(..,0x00,..) instead of memset(..,0x3F,00). +@@ -270,7 +271,7 @@ struct hvcs_struct { + unsigned int index; + + struct tty_struct *tty; +- int open_count; ++ local_t open_count; + + /* + * Used to tell the driver kernel_thread what operations need to take +@@ -422,7 +423,7 @@ static ssize_t hvcs_vterm_state_store(struct device *dev, struct device_attribut + + spin_lock_irqsave(&hvcsd->lock, flags); + +- if (hvcsd->open_count > 0) { ++ if (local_read(&hvcsd->open_count) > 0) { + spin_unlock_irqrestore(&hvcsd->lock, flags); + printk(KERN_INFO "HVCS: vterm state unchanged. " + "The hvcs device node is still in use.\n"); +@@ -1138,7 +1139,7 @@ static int hvcs_open(struct tty_struct *tty, struct file *filp) + if ((retval = hvcs_partner_connect(hvcsd))) + goto error_release; + +- hvcsd->open_count = 1; ++ local_set(&hvcsd->open_count, 1); + hvcsd->tty = tty; + tty->driver_data = hvcsd; + +@@ -1172,7 +1173,7 @@ fast_open: + + spin_lock_irqsave(&hvcsd->lock, flags); + kref_get(&hvcsd->kref); +- hvcsd->open_count++; ++ local_inc(&hvcsd->open_count); + hvcsd->todo_mask |= HVCS_SCHED_READ; + spin_unlock_irqrestore(&hvcsd->lock, flags); + +@@ -1216,7 +1217,7 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp) + hvcsd = tty->driver_data; + + spin_lock_irqsave(&hvcsd->lock, flags); +- if (--hvcsd->open_count == 0) { ++ if (local_dec_and_test(&hvcsd->open_count)) { + + vio_disable_interrupts(hvcsd->vdev); + +@@ -1242,10 +1243,10 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp) + free_irq(irq, hvcsd); + kref_put(&hvcsd->kref, destroy_hvcs_struct); + return; +- } else if (hvcsd->open_count < 0) { ++ } else if (local_read(&hvcsd->open_count) < 0) { + printk(KERN_ERR "HVCS: vty-server@%X open_count: %d" + " is missmanaged.\n", +- hvcsd->vdev->unit_address, hvcsd->open_count); ++ hvcsd->vdev->unit_address, local_read(&hvcsd->open_count)); + } + + spin_unlock_irqrestore(&hvcsd->lock, flags); +@@ -1261,7 +1262,7 @@ static void hvcs_hangup(struct tty_struct * tty) + + spin_lock_irqsave(&hvcsd->lock, flags); + /* Preserve this so that we know how many kref refs to put */ +- temp_open_count = hvcsd->open_count; ++ temp_open_count = local_read(&hvcsd->open_count); + + /* + * Don't kref put inside the spinlock because the destruction +@@ -1276,7 +1277,7 @@ static void hvcs_hangup(struct tty_struct * tty) + hvcsd->tty->driver_data = NULL; + hvcsd->tty = NULL; + +- hvcsd->open_count = 0; ++ local_set(&hvcsd->open_count, 0); + + /* This will drop any buffered data on the floor which is OK in a hangup + * scenario. */ +@@ -1347,7 +1348,7 @@ static int hvcs_write(struct tty_struct *tty, + * the middle of a write operation? This is a crummy place to do this + * but we want to keep it all in the spinlock. + */ +- if (hvcsd->open_count <= 0) { ++ if (local_read(&hvcsd->open_count) <= 0) { + spin_unlock_irqrestore(&hvcsd->lock, flags); + return -ENODEV; + } +@@ -1421,7 +1422,7 @@ static int hvcs_write_room(struct tty_struct *tty) + { + struct hvcs_struct *hvcsd = tty->driver_data; + +- if (!hvcsd || hvcsd->open_count <= 0) ++ if (!hvcsd || local_read(&hvcsd->open_count) <= 0) + return 0; + + return HVCS_BUFF_LEN - hvcsd->chars_in_buffer; +diff --git a/drivers/tty/ipwireless/tty.c b/drivers/tty/ipwireless/tty.c +index 4daf962..b4a2281 100644 +--- a/drivers/tty/ipwireless/tty.c ++++ b/drivers/tty/ipwireless/tty.c +@@ -29,6 +29,7 @@ + #include <linux/tty_driver.h> + #include <linux/tty_flip.h> + #include <linux/uaccess.h> ++#include <asm/local.h> + + #include "tty.h" + #include "network.h" +@@ -51,7 +52,7 @@ struct ipw_tty { + int tty_type; + struct ipw_network *network; + struct tty_struct *linux_tty; +- int open_count; ++ local_t open_count; + unsigned int control_lines; + struct mutex ipw_tty_mutex; + int tx_bytes_queued; +@@ -117,10 +118,10 @@ static int ipw_open(struct tty_struct *linux_tty, struct file *filp) + mutex_unlock(&tty->ipw_tty_mutex); + return -ENODEV; + } +- if (tty->open_count == 0) ++ if (local_read(&tty->open_count) == 0) + tty->tx_bytes_queued = 0; + +- tty->open_count++; ++ local_inc(&tty->open_count); + + tty->linux_tty = linux_tty; + linux_tty->driver_data = tty; +@@ -136,9 +137,7 @@ static int ipw_open(struct tty_struct *linux_tty, struct file *filp) + + static void do_ipw_close(struct ipw_tty *tty) + { +- tty->open_count--; +- +- if (tty->open_count == 0) { ++ if (local_dec_return(&tty->open_count) == 0) { + struct tty_struct *linux_tty = tty->linux_tty; + + if (linux_tty != NULL) { +@@ -159,7 +158,7 @@ static void ipw_hangup(struct tty_struct *linux_tty) + return; + + mutex_lock(&tty->ipw_tty_mutex); +- if (tty->open_count == 0) { ++ if (local_read(&tty->open_count) == 0) { + mutex_unlock(&tty->ipw_tty_mutex); + return; + } +@@ -188,7 +187,7 @@ void ipwireless_tty_received(struct ipw_tty *tty, unsigned char *data, + return; + } + +- if (!tty->open_count) { ++ if (!local_read(&tty->open_count)) { + mutex_unlock(&tty->ipw_tty_mutex); + return; + } +@@ -230,7 +229,7 @@ static int ipw_write(struct tty_struct *linux_tty, + return -ENODEV; + + mutex_lock(&tty->ipw_tty_mutex); +- if (!tty->open_count) { ++ if (!local_read(&tty->open_count)) { + mutex_unlock(&tty->ipw_tty_mutex); + return -EINVAL; + } +@@ -270,7 +269,7 @@ static int ipw_write_room(struct tty_struct *linux_tty) + if (!tty) + return -ENODEV; + +- if (!tty->open_count) ++ if (!local_read(&tty->open_count)) + return -EINVAL; + + room = IPWIRELESS_TX_QUEUE_SIZE - tty->tx_bytes_queued; +@@ -312,7 +311,7 @@ static int ipw_chars_in_buffer(struct tty_struct *linux_tty) + if (!tty) + return 0; + +- if (!tty->open_count) ++ if (!local_read(&tty->open_count)) + return 0; + + return tty->tx_bytes_queued; +@@ -393,7 +392,7 @@ static int ipw_tiocmget(struct tty_struct *linux_tty) + if (!tty) + return -ENODEV; + +- if (!tty->open_count) ++ if (!local_read(&tty->open_count)) + return -EINVAL; + + return get_control_lines(tty); +@@ -409,7 +408,7 @@ ipw_tiocmset(struct tty_struct *linux_tty, + if (!tty) + return -ENODEV; + +- if (!tty->open_count) ++ if (!local_read(&tty->open_count)) + return -EINVAL; + + return set_control_lines(tty, set, clear); +@@ -423,7 +422,7 @@ static int ipw_ioctl(struct tty_struct *linux_tty, + if (!tty) + return -ENODEV; + +- if (!tty->open_count) ++ if (!local_read(&tty->open_count)) + return -EINVAL; + + /* FIXME: Exactly how is the tty object locked here .. */ +@@ -572,7 +571,7 @@ void ipwireless_tty_free(struct ipw_tty *tty) + against a parallel ioctl etc */ + mutex_lock(&ttyj->ipw_tty_mutex); + } +- while (ttyj->open_count) ++ while (local_read(&ttyj->open_count)) + do_ipw_close(ttyj); + ipwireless_disassociate_network_ttys(network, + ttyj->channel_idx); +diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c +index c43b683..0a88f1c 100644 +--- a/drivers/tty/n_gsm.c ++++ b/drivers/tty/n_gsm.c +@@ -1629,7 +1629,7 @@ static struct gsm_dlci *gsm_dlci_alloc(struct gsm_mux *gsm, int addr) + kref_init(&dlci->ref); + mutex_init(&dlci->mutex); + dlci->fifo = &dlci->_fifo; +- if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL) < 0) { ++ if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL)) { + kfree(dlci); + return NULL; + } +diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c +index 94b6eda..15f7cec 100644 +--- a/drivers/tty/n_tty.c ++++ b/drivers/tty/n_tty.c +@@ -2122,6 +2122,7 @@ void n_tty_inherit_ops(struct tty_ldisc_ops *ops) + { + *ops = tty_ldisc_N_TTY; + ops->owner = NULL; +- ops->refcount = ops->flags = 0; ++ atomic_set(&ops->refcount, 0); ++ ops->flags = 0; + } + EXPORT_SYMBOL_GPL(n_tty_inherit_ops); +diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c +index eeae7fa..177a743 100644 +--- a/drivers/tty/pty.c ++++ b/drivers/tty/pty.c +@@ -707,8 +707,10 @@ static void __init unix98_pty_init(void) + panic("Couldn't register Unix98 pts driver"); + + /* Now create the /dev/ptmx special device */ ++ pax_open_kernel(); + tty_default_fops(&ptmx_fops); +- ptmx_fops.open = ptmx_open; ++ *(void **)&ptmx_fops.open = ptmx_open; ++ pax_close_kernel(); + + cdev_init(&ptmx_cdev, &ptmx_fops); + if (cdev_add(&ptmx_cdev, MKDEV(TTYAUX_MAJOR, 2), 1) || +diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c +index 2b42a01..32a2ed3 100644 +--- a/drivers/tty/serial/kgdboc.c ++++ b/drivers/tty/serial/kgdboc.c +@@ -24,8 +24,9 @@ + #define MAX_CONFIG_LEN 40 + + static struct kgdb_io kgdboc_io_ops; ++static struct kgdb_io kgdboc_io_ops_console; + +-/* -1 = init not run yet, 0 = unconfigured, 1 = configured. */ ++/* -1 = init not run yet, 0 = unconfigured, 1/2 = configured. */ + static int configured = -1; + + static char config[MAX_CONFIG_LEN]; +@@ -148,6 +149,8 @@ static void cleanup_kgdboc(void) + kgdboc_unregister_kbd(); + if (configured == 1) + kgdb_unregister_io_module(&kgdboc_io_ops); ++ else if (configured == 2) ++ kgdb_unregister_io_module(&kgdboc_io_ops_console); + } + + static int configure_kgdboc(void) +@@ -157,13 +160,13 @@ static int configure_kgdboc(void) + int err; + char *cptr = config; + struct console *cons; ++ int is_console = 0; + + err = kgdboc_option_setup(config); + if (err || !strlen(config) || isspace(config[0])) + goto noconfig; + + err = -ENODEV; +- kgdboc_io_ops.is_console = 0; + kgdb_tty_driver = NULL; + + kgdboc_use_kms = 0; +@@ -184,7 +187,7 @@ static int configure_kgdboc(void) + int idx; + if (cons->device && cons->device(cons, &idx) == p && + idx == tty_line) { +- kgdboc_io_ops.is_console = 1; ++ is_console = 1; + break; + } + cons = cons->next; +@@ -194,12 +197,16 @@ static int configure_kgdboc(void) + kgdb_tty_line = tty_line; + + do_register: +- err = kgdb_register_io_module(&kgdboc_io_ops); ++ if (is_console) { ++ err = kgdb_register_io_module(&kgdboc_io_ops_console); ++ configured = 2; ++ } else { ++ err = kgdb_register_io_module(&kgdboc_io_ops); ++ configured = 1; ++ } + if (err) + goto noconfig; + +- configured = 1; +- + return 0; + + noconfig: +@@ -213,7 +220,7 @@ noconfig: + static int __init init_kgdboc(void) + { + /* Already configured? */ +- if (configured == 1) ++ if (configured >= 1) + return 0; + + return configure_kgdboc(); +@@ -262,7 +269,7 @@ static int param_set_kgdboc_var(const char *kmessage, struct kernel_param *kp) + if (config[len - 1] == '\n') + config[len - 1] = '\0'; + +- if (configured == 1) ++ if (configured >= 1) + cleanup_kgdboc(); + + /* Go and configure with the new params. */ +@@ -302,6 +309,15 @@ static struct kgdb_io kgdboc_io_ops = { + .post_exception = kgdboc_post_exp_handler, + }; + ++static struct kgdb_io kgdboc_io_ops_console = { ++ .name = "kgdboc", ++ .read_char = kgdboc_get_char, ++ .write_char = kgdboc_put_char, ++ .pre_exception = kgdboc_pre_exp_handler, ++ .post_exception = kgdboc_post_exp_handler, ++ .is_console = 1 ++}; ++ + #ifdef CONFIG_KGDB_SERIAL_CONSOLE + /* This is only available if kgdboc is a built in for early debugging */ + static int __init kgdboc_early_init(char *opt) +diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c +index 05728894..b9d44c6 100644 +--- a/drivers/tty/sysrq.c ++++ b/drivers/tty/sysrq.c +@@ -865,7 +865,7 @@ EXPORT_SYMBOL(unregister_sysrq_key); + static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) + { +- if (count) { ++ if (count && capable(CAP_SYS_ADMIN)) { + char c; + + if (get_user(c, buf)) +diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c +index d939bd7..33d92cd 100644 +--- a/drivers/tty/tty_io.c ++++ b/drivers/tty/tty_io.c +@@ -3278,7 +3278,7 @@ EXPORT_SYMBOL_GPL(get_current_tty); + + void tty_default_fops(struct file_operations *fops) + { +- *fops = tty_fops; ++ memcpy((void *)fops, &tty_fops, sizeof(tty_fops)); + } + + /* +diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c +index 24b95db..9c078d0 100644 +--- a/drivers/tty/tty_ldisc.c ++++ b/drivers/tty/tty_ldisc.c +@@ -57,7 +57,7 @@ static void put_ldisc(struct tty_ldisc *ld) + if (atomic_dec_and_lock(&ld->users, &tty_ldisc_lock)) { + struct tty_ldisc_ops *ldo = ld->ops; + +- ldo->refcount--; ++ atomic_dec(&ldo->refcount); + module_put(ldo->owner); + spin_unlock_irqrestore(&tty_ldisc_lock, flags); + +@@ -92,7 +92,7 @@ int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc) + spin_lock_irqsave(&tty_ldisc_lock, flags); + tty_ldiscs[disc] = new_ldisc; + new_ldisc->num = disc; +- new_ldisc->refcount = 0; ++ atomic_set(&new_ldisc->refcount, 0); + spin_unlock_irqrestore(&tty_ldisc_lock, flags); + + return ret; +@@ -120,7 +120,7 @@ int tty_unregister_ldisc(int disc) + return -EINVAL; + + spin_lock_irqsave(&tty_ldisc_lock, flags); +- if (tty_ldiscs[disc]->refcount) ++ if (atomic_read(&tty_ldiscs[disc]->refcount)) + ret = -EBUSY; + else + tty_ldiscs[disc] = NULL; +@@ -141,7 +141,7 @@ static struct tty_ldisc_ops *get_ldops(int disc) + if (ldops) { + ret = ERR_PTR(-EAGAIN); + if (try_module_get(ldops->owner)) { +- ldops->refcount++; ++ atomic_inc(&ldops->refcount); + ret = ldops; + } + } +@@ -154,7 +154,7 @@ static void put_ldops(struct tty_ldisc_ops *ldops) + unsigned long flags; + + spin_lock_irqsave(&tty_ldisc_lock, flags); +- ldops->refcount--; ++ atomic_dec(&ldops->refcount); + module_put(ldops->owner); + spin_unlock_irqrestore(&tty_ldisc_lock, flags); + } +diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c +index 3b0c4e3..f98a992 100644 +--- a/drivers/tty/vt/keyboard.c ++++ b/drivers/tty/vt/keyboard.c +@@ -663,6 +663,16 @@ static void k_spec(struct vc_data *vc, unsigned char value, char up_flag) + kbd->kbdmode == VC_OFF) && + value != KVAL(K_SAK)) + return; /* SAK is allowed even in raw mode */ ++ ++#if defined(CONFIG_GRKERNSEC_PROC) || defined(CONFIG_GRKERNSEC_PROC_MEMMAP) ++ { ++ void *func = fn_handler[value]; ++ if (func == fn_show_state || func == fn_show_ptregs || ++ func == fn_show_mem) ++ return; ++ } ++#endif ++ + fn_handler[value](vc); + } + +@@ -1812,9 +1822,6 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm, + if (copy_from_user(&tmp, user_kbe, sizeof(struct kbentry))) + return -EFAULT; + +- if (!capable(CAP_SYS_TTY_CONFIG)) +- perm = 0; +- + switch (cmd) { + case KDGKBENT: + /* Ensure another thread doesn't free it under us */ +@@ -1829,6 +1836,9 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm, + spin_unlock_irqrestore(&kbd_event_lock, flags); + return put_user(val, &user_kbe->kb_value); + case KDSKBENT: ++ if (!capable(CAP_SYS_TTY_CONFIG)) ++ perm = 0; ++ + if (!perm) + return -EPERM; + if (!i && v == K_NOSUCHMAP) { +@@ -1919,9 +1929,6 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm) + int i, j, k; + int ret; + +- if (!capable(CAP_SYS_TTY_CONFIG)) +- perm = 0; +- + kbs = kmalloc(sizeof(*kbs), GFP_KERNEL); + if (!kbs) { + ret = -ENOMEM; +@@ -1955,6 +1962,9 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm) + kfree(kbs); + return ((p && *p) ? -EOVERFLOW : 0); + case KDSKBSENT: ++ if (!capable(CAP_SYS_TTY_CONFIG)) ++ perm = 0; ++ + if (!perm) { + ret = -EPERM; + goto reterr; +diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c +index a783d53..cb30d94 100644 +--- a/drivers/uio/uio.c ++++ b/drivers/uio/uio.c +@@ -25,6 +25,7 @@ + #include <linux/kobject.h> + #include <linux/cdev.h> + #include <linux/uio_driver.h> ++#include <asm/local.h> + + #define UIO_MAX_DEVICES (1U << MINORBITS) + +@@ -32,10 +33,10 @@ struct uio_device { + struct module *owner; + struct device *dev; + int minor; +- atomic_t event; ++ atomic_unchecked_t event; + struct fasync_struct *async_queue; + wait_queue_head_t wait; +- int vma_count; ++ local_t vma_count; + struct uio_info *info; + struct kobject *map_dir; + struct kobject *portio_dir; +@@ -242,7 +243,7 @@ static ssize_t show_event(struct device *dev, + struct device_attribute *attr, char *buf) + { + struct uio_device *idev = dev_get_drvdata(dev); +- return sprintf(buf, "%u\n", (unsigned int)atomic_read(&idev->event)); ++ return sprintf(buf, "%u\n", (unsigned int)atomic_read_unchecked(&idev->event)); + } + + static struct device_attribute uio_class_attributes[] = { +@@ -408,7 +409,7 @@ void uio_event_notify(struct uio_info *info) + { + struct uio_device *idev = info->uio_dev; + +- atomic_inc(&idev->event); ++ atomic_inc_unchecked(&idev->event); + wake_up_interruptible(&idev->wait); + kill_fasync(&idev->async_queue, SIGIO, POLL_IN); + } +@@ -461,7 +462,7 @@ static int uio_open(struct inode *inode, struct file *filep) + } + + listener->dev = idev; +- listener->event_count = atomic_read(&idev->event); ++ listener->event_count = atomic_read_unchecked(&idev->event); + filep->private_data = listener; + + if (idev->info->open) { +@@ -512,7 +513,7 @@ static unsigned int uio_poll(struct file *filep, poll_table *wait) + return -EIO; + + poll_wait(filep, &idev->wait, wait); +- if (listener->event_count != atomic_read(&idev->event)) ++ if (listener->event_count != atomic_read_unchecked(&idev->event)) + return POLLIN | POLLRDNORM; + return 0; + } +@@ -537,7 +538,7 @@ static ssize_t uio_read(struct file *filep, char __user *buf, + do { + set_current_state(TASK_INTERRUPTIBLE); + +- event_count = atomic_read(&idev->event); ++ event_count = atomic_read_unchecked(&idev->event); + if (event_count != listener->event_count) { + if (copy_to_user(buf, &event_count, count)) + retval = -EFAULT; +@@ -606,13 +607,13 @@ static int uio_find_mem_index(struct vm_area_struct *vma) + static void uio_vma_open(struct vm_area_struct *vma) + { + struct uio_device *idev = vma->vm_private_data; +- idev->vma_count++; ++ local_inc(&idev->vma_count); + } + + static void uio_vma_close(struct vm_area_struct *vma) + { + struct uio_device *idev = vma->vm_private_data; +- idev->vma_count--; ++ local_dec(&idev->vma_count); + } + + static int uio_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf) +@@ -821,7 +822,7 @@ int __uio_register_device(struct module *owner, + idev->owner = owner; + idev->info = info; + init_waitqueue_head(&idev->wait); +- atomic_set(&idev->event, 0); ++ atomic_set_unchecked(&idev->event, 0); + + ret = uio_get_minor(idev); + if (ret) +diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c +index 98b89fe..aff824e 100644 +--- a/drivers/usb/atm/cxacru.c ++++ b/drivers/usb/atm/cxacru.c +@@ -473,7 +473,7 @@ static ssize_t cxacru_sysfs_store_adsl_config(struct device *dev, + ret = sscanf(buf + pos, "%x=%x%n", &index, &value, &tmp); + if (ret < 2) + return -EINVAL; +- if (index < 0 || index > 0x7f) ++ if (index > 0x7f) + return -EINVAL; + pos += tmp; + +diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c +index d3448ca..d2864ca 100644 +--- a/drivers/usb/atm/usbatm.c ++++ b/drivers/usb/atm/usbatm.c +@@ -333,7 +333,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char + if (printk_ratelimit()) + atm_warn(instance, "%s: OAM not supported (vpi %d, vci %d)!\n", + __func__, vpi, vci); +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + return; + } + +@@ -361,7 +361,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char + if (length > ATM_MAX_AAL5_PDU) { + atm_rldbg(instance, "%s: bogus length %u (vcc: 0x%p)!\n", + __func__, length, vcc); +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + goto out; + } + +@@ -370,14 +370,14 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char + if (sarb->len < pdu_length) { + atm_rldbg(instance, "%s: bogus pdu_length %u (sarb->len: %u, vcc: 0x%p)!\n", + __func__, pdu_length, sarb->len, vcc); +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + goto out; + } + + if (crc32_be(~0, skb_tail_pointer(sarb) - pdu_length, pdu_length) != 0xc704dd7b) { + atm_rldbg(instance, "%s: packet failed crc check (vcc: 0x%p)!\n", + __func__, vcc); +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + goto out; + } + +@@ -387,7 +387,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char + if (printk_ratelimit()) + atm_err(instance, "%s: no memory for skb (length: %u)!\n", + __func__, length); +- atomic_inc(&vcc->stats->rx_drop); ++ atomic_inc_unchecked(&vcc->stats->rx_drop); + goto out; + } + +@@ -412,7 +412,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char + + vcc->push(vcc, skb); + +- atomic_inc(&vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->rx); + out: + skb_trim(sarb, 0); + } +@@ -615,7 +615,7 @@ static void usbatm_tx_process(unsigned long data) + struct atm_vcc *vcc = UDSL_SKB(skb)->atm.vcc; + + usbatm_pop(vcc, skb); +- atomic_inc(&vcc->stats->tx); ++ atomic_inc_unchecked(&vcc->stats->tx); + + skb = skb_dequeue(&instance->sndqueue); + } +@@ -773,11 +773,11 @@ static int usbatm_atm_proc_read(struct atm_dev *atm_dev, loff_t * pos, char *pag + if (!left--) + return sprintf(page, + "AAL5: tx %d ( %d err ), rx %d ( %d err, %d drop )\n", +- atomic_read(&atm_dev->stats.aal5.tx), +- atomic_read(&atm_dev->stats.aal5.tx_err), +- atomic_read(&atm_dev->stats.aal5.rx), +- atomic_read(&atm_dev->stats.aal5.rx_err), +- atomic_read(&atm_dev->stats.aal5.rx_drop)); ++ atomic_read_unchecked(&atm_dev->stats.aal5.tx), ++ atomic_read_unchecked(&atm_dev->stats.aal5.tx_err), ++ atomic_read_unchecked(&atm_dev->stats.aal5.rx), ++ atomic_read_unchecked(&atm_dev->stats.aal5.rx_err), ++ atomic_read_unchecked(&atm_dev->stats.aal5.rx_drop)); + + if (!left--) { + if (instance->disconnected) +diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c +index d956965..4179a77 100644 +--- a/drivers/usb/core/devices.c ++++ b/drivers/usb/core/devices.c +@@ -126,7 +126,7 @@ static const char format_endpt[] = + * time it gets called. + */ + static struct device_connect_event { +- atomic_t count; ++ atomic_unchecked_t count; + wait_queue_head_t wait; + } device_event = { + .count = ATOMIC_INIT(1), +@@ -164,7 +164,7 @@ static const struct class_info clas_info[] = { + + void usbfs_conn_disc_event(void) + { +- atomic_add(2, &device_event.count); ++ atomic_add_unchecked(2, &device_event.count); + wake_up(&device_event.wait); + } + +@@ -648,7 +648,7 @@ static unsigned int usb_device_poll(struct file *file, + + poll_wait(file, &device_event.wait, wait); + +- event_count = atomic_read(&device_event.count); ++ event_count = atomic_read_unchecked(&device_event.count); + if (file->f_version != event_count) { + file->f_version = event_count; + return POLLIN | POLLRDNORM; +diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c +index 1fc8f12..20647c1 100644 +--- a/drivers/usb/early/ehci-dbgp.c ++++ b/drivers/usb/early/ehci-dbgp.c +@@ -97,7 +97,8 @@ static inline u32 dbgp_len_update(u32 x, u32 len) + + #ifdef CONFIG_KGDB + static struct kgdb_io kgdbdbgp_io_ops; +-#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops) ++static struct kgdb_io kgdbdbgp_io_ops_console; ++#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops || dbg_io_ops == &kgdbdbgp_io_ops_console) + #else + #define dbgp_kgdb_mode (0) + #endif +@@ -1035,6 +1036,13 @@ static struct kgdb_io kgdbdbgp_io_ops = { + .write_char = kgdbdbgp_write_char, + }; + ++static struct kgdb_io kgdbdbgp_io_ops_console = { ++ .name = "kgdbdbgp", ++ .read_char = kgdbdbgp_read_char, ++ .write_char = kgdbdbgp_write_char, ++ .is_console = 1 ++}; ++ + static int kgdbdbgp_wait_time; + + static int __init kgdbdbgp_parse_config(char *str) +@@ -1050,8 +1058,10 @@ static int __init kgdbdbgp_parse_config(char *str) + ptr++; + kgdbdbgp_wait_time = simple_strtoul(ptr, &ptr, 10); + } +- kgdb_register_io_module(&kgdbdbgp_io_ops); +- kgdbdbgp_io_ops.is_console = early_dbgp_console.index != -1; ++ if (early_dbgp_console.index != -1) ++ kgdb_register_io_module(&kgdbdbgp_io_ops_console); ++ else ++ kgdb_register_io_module(&kgdbdbgp_io_ops); + + return 0; + } +diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h +index d6bea3e..60b250e 100644 +--- a/drivers/usb/wusbcore/wa-hc.h ++++ b/drivers/usb/wusbcore/wa-hc.h +@@ -192,7 +192,7 @@ struct wahc { + struct list_head xfer_delayed_list; + spinlock_t xfer_list_lock; + struct work_struct xfer_work; +- atomic_t xfer_id_count; ++ atomic_unchecked_t xfer_id_count; + }; + + +@@ -246,7 +246,7 @@ static inline void wa_init(struct wahc *wa) + INIT_LIST_HEAD(&wa->xfer_delayed_list); + spin_lock_init(&wa->xfer_list_lock); + INIT_WORK(&wa->xfer_work, wa_urb_enqueue_run); +- atomic_set(&wa->xfer_id_count, 1); ++ atomic_set_unchecked(&wa->xfer_id_count, 1); + } + + /** +diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c +index 57c01ab..8a05959 100644 +--- a/drivers/usb/wusbcore/wa-xfer.c ++++ b/drivers/usb/wusbcore/wa-xfer.c +@@ -296,7 +296,7 @@ out: + */ + static void wa_xfer_id_init(struct wa_xfer *xfer) + { +- xfer->id = atomic_add_return(1, &xfer->wa->xfer_id_count); ++ xfer->id = atomic_add_return_unchecked(1, &xfer->wa->xfer_id_count); + } + + /* +diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c +index 51e4c1e..9d87e2a 100644 +--- a/drivers/vhost/vhost.c ++++ b/drivers/vhost/vhost.c +@@ -632,7 +632,7 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m) + return 0; + } + +-static long vhost_set_vring(struct vhost_dev *d, int ioctl, void __user *argp) ++static long vhost_set_vring(struct vhost_dev *d, unsigned int ioctl, void __user *argp) + { + struct file *eventfp, *filep = NULL, + *pollstart = NULL, *pollstop = NULL; +diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c +index b0b2ac3..89a4399 100644 +--- a/drivers/video/aty/aty128fb.c ++++ b/drivers/video/aty/aty128fb.c +@@ -148,7 +148,7 @@ enum { + }; + + /* Must match above enum */ +-static const char *r128_family[] __devinitdata = { ++static const char *r128_family[] __devinitconst = { + "AGP", + "PCI", + "PRO AGP", +diff --git a/drivers/video/fbcmap.c b/drivers/video/fbcmap.c +index 5c3960d..15cf8fc 100644 +--- a/drivers/video/fbcmap.c ++++ b/drivers/video/fbcmap.c +@@ -285,8 +285,7 @@ int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *info) + rc = -ENODEV; + goto out; + } +- if (cmap->start < 0 || (!info->fbops->fb_setcolreg && +- !info->fbops->fb_setcmap)) { ++ if (!info->fbops->fb_setcolreg && !info->fbops->fb_setcmap) { + rc = -EINVAL; + goto out1; + } +diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c +index c6ce416..3b9b642 100644 +--- a/drivers/video/fbmem.c ++++ b/drivers/video/fbmem.c +@@ -428,7 +428,7 @@ static void fb_do_show_logo(struct fb_info *info, struct fb_image *image, + image->dx += image->width + 8; + } + } else if (rotate == FB_ROTATE_UD) { +- for (x = 0; x < num && image->dx >= 0; x++) { ++ for (x = 0; x < num && (__s32)image->dx >= 0; x++) { + info->fbops->fb_imageblit(info, image); + image->dx -= image->width + 8; + } +@@ -440,7 +440,7 @@ static void fb_do_show_logo(struct fb_info *info, struct fb_image *image, + image->dy += image->height + 8; + } + } else if (rotate == FB_ROTATE_CCW) { +- for (x = 0; x < num && image->dy >= 0; x++) { ++ for (x = 0; x < num && (__s32)image->dy >= 0; x++) { + info->fbops->fb_imageblit(info, image); + image->dy -= image->height + 8; + } +@@ -1157,7 +1157,7 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd, + return -EFAULT; + if (con2fb.console < 1 || con2fb.console > MAX_NR_CONSOLES) + return -EINVAL; +- if (con2fb.framebuffer < 0 || con2fb.framebuffer >= FB_MAX) ++ if (con2fb.framebuffer >= FB_MAX) + return -EINVAL; + if (!registered_fb[con2fb.framebuffer]) + request_module("fb%d", con2fb.framebuffer); +diff --git a/drivers/video/geode/gx1fb_core.c b/drivers/video/geode/gx1fb_core.c +index 5a5d092..265c5ed 100644 +--- a/drivers/video/geode/gx1fb_core.c ++++ b/drivers/video/geode/gx1fb_core.c +@@ -29,7 +29,7 @@ static int crt_option = 1; + static char panel_option[32] = ""; + + /* Modes relevant to the GX1 (taken from modedb.c) */ +-static const struct fb_videomode __devinitdata gx1_modedb[] = { ++static const struct fb_videomode __devinitconst gx1_modedb[] = { + /* 640x480-60 VESA */ + { NULL, 60, 640, 480, 39682, 48, 16, 33, 10, 96, 2, + 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, +diff --git a/drivers/video/gxt4500.c b/drivers/video/gxt4500.c +index 0fad23f..0e9afa4 100644 +--- a/drivers/video/gxt4500.c ++++ b/drivers/video/gxt4500.c +@@ -156,7 +156,7 @@ struct gxt4500_par { + static char *mode_option; + + /* default mode: 1280x1024 @ 60 Hz, 8 bpp */ +-static const struct fb_videomode defaultmode __devinitdata = { ++static const struct fb_videomode defaultmode __devinitconst = { + .refresh = 60, + .xres = 1280, + .yres = 1024, +@@ -581,7 +581,7 @@ static int gxt4500_blank(int blank, struct fb_info *info) + return 0; + } + +-static const struct fb_fix_screeninfo gxt4500_fix __devinitdata = { ++static const struct fb_fix_screeninfo gxt4500_fix __devinitconst = { + .id = "IBM GXT4500P", + .type = FB_TYPE_PACKED_PIXELS, + .visual = FB_VISUAL_PSEUDOCOLOR, +diff --git a/drivers/video/i810/i810_accel.c b/drivers/video/i810/i810_accel.c +index 7672d2e..b56437f 100644 +--- a/drivers/video/i810/i810_accel.c ++++ b/drivers/video/i810/i810_accel.c +@@ -73,6 +73,7 @@ static inline int wait_for_space(struct fb_info *info, u32 space) + } + } + printk("ringbuffer lockup!!!\n"); ++ printk("head:%u tail:%u iring.size:%u space:%u\n", head, tail, par->iring.size, space); + i810_report_error(mmio); + par->dev_flags |= LOCKUP; + info->pixmap.scan_align = 1; +diff --git a/drivers/video/i810/i810_main.c b/drivers/video/i810/i810_main.c +index b83f361..2b05a91 100644 +--- a/drivers/video/i810/i810_main.c ++++ b/drivers/video/i810/i810_main.c +@@ -97,7 +97,7 @@ static int i810fb_blank (int blank_mode, struct fb_info *info); + static void i810fb_release_resource (struct fb_info *info, struct i810fb_par *par); + + /* PCI */ +-static const char *i810_pci_list[] __devinitdata = { ++static const char *i810_pci_list[] __devinitconst = { + "Intel(R) 810 Framebuffer Device" , + "Intel(R) 810-DC100 Framebuffer Device" , + "Intel(R) 810E Framebuffer Device" , +diff --git a/drivers/video/jz4740_fb.c b/drivers/video/jz4740_fb.c +index de36693..3c63fc2 100644 +--- a/drivers/video/jz4740_fb.c ++++ b/drivers/video/jz4740_fb.c +@@ -136,7 +136,7 @@ struct jzfb { + uint32_t pseudo_palette[16]; + }; + +-static const struct fb_fix_screeninfo jzfb_fix __devinitdata = { ++static const struct fb_fix_screeninfo jzfb_fix __devinitconst = { + .id = "JZ4740 FB", + .type = FB_TYPE_PACKED_PIXELS, + .visual = FB_VISUAL_TRUECOLOR, +diff --git a/drivers/video/logo/logo_linux_clut224.ppm 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125 159 ++37 51 59 2 0 0 1 1 1 4 5 5 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 5 5 5 4 4 4 1 1 1 0 0 0 3 3 3 ++37 38 37 125 124 125 163 162 163 174 174 174 158 157 158 158 157 158 ++156 155 156 156 155 156 158 157 158 165 164 165 174 174 174 166 165 166 ++125 124 125 16 19 21 1 0 0 0 0 0 0 0 0 4 4 4 ++5 5 5 5 5 5 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 1 1 1 ++0 0 0 0 0 0 37 38 37 153 152 153 174 174 174 158 157 158 ++174 174 174 163 162 163 37 38 37 4 3 3 4 0 0 1 1 1 ++0 0 0 22 40 52 101 161 196 101 161 196 90 154 193 101 161 196 ++64 123 161 14 17 19 0 0 0 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 ++5 5 5 2 2 2 0 0 0 4 0 0 24 26 27 85 115 134 ++156 155 156 174 174 174 167 166 167 156 155 156 154 153 154 157 156 157 ++156 155 156 156 155 156 155 154 155 153 152 153 158 157 158 167 166 167 ++174 174 174 156 155 156 60 74 84 16 19 21 0 0 0 0 0 0 ++1 1 1 5 5 5 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 5 5 5 6 6 6 3 3 3 0 0 0 4 0 0 ++13 16 17 60 73 81 137 136 137 165 164 165 156 155 156 153 152 153 ++174 174 174 177 184 187 60 73 81 3 1 0 0 0 0 1 1 2 ++22 30 35 64 123 161 136 185 209 90 154 193 90 154 193 90 154 193 ++90 154 193 21 29 34 0 0 0 3 2 2 4 4 5 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 3 3 3 ++0 0 0 0 0 0 10 13 16 60 74 84 157 156 157 174 174 174 ++174 174 174 158 157 158 153 152 153 154 153 154 156 155 156 155 154 155 ++156 155 156 155 154 155 154 153 154 157 156 157 154 153 154 153 152 153 ++163 162 163 174 174 174 177 184 187 137 136 137 60 73 81 13 16 17 ++4 0 0 0 0 0 3 3 3 5 5 5 4 4 4 4 4 4 ++5 5 5 4 4 4 1 1 1 0 0 0 3 3 3 41 54 63 ++131 129 131 174 174 174 174 174 174 174 174 174 167 166 167 174 174 174 ++190 197 201 137 136 137 24 26 27 4 0 0 16 21 25 50 82 103 ++90 154 193 136 185 209 90 154 193 101 161 196 101 161 196 101 161 196 ++31 91 132 3 6 7 0 0 0 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 2 2 2 0 0 0 4 0 0 ++4 0 0 43 57 68 137 136 137 177 184 187 174 174 174 163 162 163 ++155 154 155 155 154 155 156 155 156 155 154 155 158 157 158 165 164 165 ++167 166 167 166 165 166 163 162 163 157 156 157 155 154 155 155 154 155 ++153 152 153 156 155 156 167 166 167 174 174 174 174 174 174 131 129 131 ++41 54 63 5 5 5 0 0 0 0 0 0 3 3 3 4 4 4 ++1 1 1 0 0 0 1 0 0 26 28 28 125 124 125 174 174 174 ++177 184 187 174 174 174 174 174 174 156 155 156 131 129 131 137 136 137 ++125 124 125 24 26 27 4 0 0 41 65 82 90 154 193 136 185 209 ++136 185 209 101 161 196 53 118 160 37 112 160 90 154 193 34 86 122 ++7 12 15 0 0 0 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 3 3 3 0 0 0 0 0 0 5 5 5 37 38 37 ++125 124 125 167 166 167 174 174 174 167 166 167 158 157 158 155 154 155 ++156 155 156 156 155 156 156 155 156 163 162 163 167 166 167 155 154 155 ++137 136 137 153 152 153 156 155 156 165 164 165 163 162 163 156 155 156 ++156 155 156 156 155 156 155 154 155 158 157 158 166 165 166 174 174 174 ++167 166 167 125 124 125 37 38 37 1 0 0 0 0 0 0 0 0 ++0 0 0 24 26 27 60 74 84 158 157 158 174 174 174 174 174 174 ++166 165 166 158 157 158 125 124 125 41 54 63 13 16 17 6 6 6 ++6 6 6 37 38 37 80 127 157 136 185 209 101 161 196 101 161 196 ++90 154 193 28 67 93 6 10 14 13 20 25 13 20 25 6 10 14 ++1 1 2 4 3 3 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++1 1 1 1 0 0 4 3 3 37 38 37 60 74 84 153 152 153 ++167 166 167 167 166 167 158 157 158 154 153 154 155 154 155 156 155 156 ++157 156 157 158 157 158 167 166 167 167 166 167 131 129 131 43 57 68 ++26 28 28 37 38 37 60 73 81 131 129 131 165 164 165 166 165 166 ++158 157 158 155 154 155 156 155 156 156 155 156 156 155 156 158 157 158 ++165 164 165 174 174 174 163 162 163 60 74 84 16 19 21 13 16 17 ++60 73 81 131 129 131 174 174 174 174 174 174 167 166 167 165 164 165 ++137 136 137 60 73 81 24 26 27 4 0 0 4 0 0 16 19 21 ++52 104 138 101 161 196 136 185 209 136 185 209 90 154 193 27 99 146 ++13 20 25 4 5 7 2 5 5 4 5 7 1 1 2 0 0 0 ++4 4 4 4 4 4 3 3 3 2 2 2 2 2 2 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 0 0 0 ++0 0 0 13 16 17 60 73 81 137 136 137 174 174 174 166 165 166 ++158 157 158 156 155 156 157 156 157 156 155 156 155 154 155 158 157 158 ++167 166 167 174 174 174 153 152 153 60 73 81 16 19 21 4 0 0 ++4 0 0 4 0 0 6 6 6 26 28 28 60 74 84 158 157 158 ++174 174 174 166 165 166 157 156 157 155 154 155 156 155 156 156 155 156 ++155 154 155 158 157 158 167 166 167 167 166 167 131 129 131 125 124 125 ++137 136 137 167 166 167 167 166 167 174 174 174 158 157 158 125 124 125 ++16 19 21 4 0 0 4 0 0 10 13 16 49 76 92 107 159 188 ++136 185 209 136 185 209 90 154 193 26 108 161 22 40 52 6 10 14 ++2 3 3 1 1 2 1 1 2 4 4 5 4 4 5 4 4 5 ++4 4 5 2 2 1 0 0 0 0 0 0 0 0 0 2 2 2 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 5 5 5 3 3 3 0 0 0 1 0 0 4 0 0 ++37 51 59 131 129 131 167 166 167 167 166 167 163 162 163 157 156 157 ++157 156 157 155 154 155 153 152 153 157 156 157 167 166 167 174 174 174 ++153 152 153 125 124 125 37 38 37 4 0 0 4 0 0 4 0 0 ++4 3 3 4 3 3 4 0 0 6 6 6 4 0 0 37 38 37 ++125 124 125 174 174 174 174 174 174 165 164 165 156 155 156 154 153 154 ++156 155 156 156 155 156 155 154 155 163 162 163 158 157 158 163 162 163 ++174 174 174 174 174 174 174 174 174 125 124 125 37 38 37 0 0 0 ++4 0 0 6 9 11 41 54 63 90 154 193 136 185 209 146 190 211 ++136 185 209 37 112 160 22 40 52 6 10 14 3 6 7 1 1 2 ++1 1 2 3 3 3 1 1 2 3 3 3 4 4 4 4 4 4 ++2 2 2 2 0 0 16 19 21 37 38 37 24 26 27 0 0 0 ++0 0 0 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 ++4 4 4 0 0 0 0 0 0 0 0 0 26 28 28 120 125 127 ++158 157 158 174 174 174 165 164 165 157 156 157 155 154 155 156 155 156 ++153 152 153 153 152 153 167 166 167 174 174 174 174 174 174 125 124 125 ++37 38 37 4 0 0 0 0 0 4 0 0 4 3 3 4 4 4 ++4 4 4 4 4 4 5 5 5 4 0 0 4 0 0 4 0 0 ++4 3 3 43 57 68 137 136 137 174 174 174 174 174 174 165 164 165 ++154 153 154 153 152 153 153 152 153 153 152 153 163 162 163 174 174 174 ++174 174 174 153 152 153 60 73 81 6 6 6 4 0 0 4 3 3 ++32 43 50 80 127 157 136 185 209 146 190 211 146 190 211 90 154 193 ++28 67 93 28 67 93 40 71 93 3 6 7 1 1 2 2 5 5 ++50 82 103 79 117 143 26 37 45 0 0 0 3 3 3 1 1 1 ++0 0 0 41 54 63 137 136 137 174 174 174 153 152 153 60 73 81 ++2 0 0 0 0 0 ++4 4 4 4 4 4 4 4 4 4 4 4 6 6 6 2 2 2 ++0 0 0 2 0 0 24 26 27 60 74 84 153 152 153 174 174 174 ++174 174 174 157 156 157 154 153 154 156 155 156 154 153 154 153 152 153 ++165 164 165 174 174 174 177 184 187 137 136 137 43 57 68 6 6 6 ++4 0 0 2 0 0 3 3 3 5 5 5 5 5 5 4 4 4 ++4 4 4 4 4 4 4 4 4 5 5 5 6 6 6 4 3 3 ++4 0 0 4 0 0 24 26 27 60 73 81 153 152 153 174 174 174 ++174 174 174 158 157 158 158 157 158 174 174 174 174 174 174 158 157 158 ++60 74 84 24 26 27 4 0 0 4 0 0 17 23 27 59 113 148 ++136 185 209 191 222 234 146 190 211 136 185 209 31 91 132 7 11 13 ++22 40 52 101 161 196 90 154 193 6 9 11 3 4 4 43 95 132 ++136 185 209 172 205 220 55 98 126 0 0 0 0 0 0 2 0 0 ++26 28 28 153 152 153 177 184 187 167 166 167 177 184 187 165 164 165 ++37 38 37 0 0 0 ++4 4 4 4 4 4 5 5 5 5 5 5 1 1 1 0 0 0 ++13 16 17 60 73 81 137 136 137 174 174 174 174 174 174 165 164 165 ++153 152 153 153 152 153 155 154 155 154 153 154 158 157 158 174 174 174 ++177 184 187 163 162 163 60 73 81 16 19 21 4 0 0 4 0 0 ++4 3 3 4 4 4 5 5 5 5 5 5 4 4 4 5 5 5 ++5 5 5 5 5 5 5 5 5 4 4 4 4 4 4 5 5 5 ++6 6 6 4 0 0 4 0 0 4 0 0 24 26 27 60 74 84 ++166 165 166 174 174 174 177 184 187 165 164 165 125 124 125 24 26 27 ++4 0 0 4 0 0 5 5 5 50 82 103 136 185 209 172 205 220 ++146 190 211 136 185 209 26 108 161 22 40 52 7 12 15 44 81 103 ++71 116 144 28 67 93 37 51 59 41 65 82 100 139 164 101 161 196 ++90 154 193 90 154 193 28 67 93 0 0 0 0 0 0 26 28 28 ++125 124 125 167 166 167 163 162 163 153 152 153 163 162 163 174 174 174 ++85 115 134 4 0 0 ++4 4 4 5 5 5 4 4 4 1 0 0 4 0 0 34 47 55 ++125 124 125 174 174 174 174 174 174 167 166 167 157 156 157 153 152 153 ++155 154 155 155 154 155 158 157 158 166 165 166 167 166 167 154 153 154 ++125 124 125 26 28 28 4 0 0 4 0 0 4 0 0 5 5 5 ++5 5 5 4 4 4 4 4 4 4 4 4 4 4 4 1 1 1 ++0 0 0 0 0 0 1 1 1 4 4 4 4 4 4 4 4 4 ++5 5 5 5 5 5 4 3 3 4 0 0 4 0 0 6 6 6 ++37 38 37 131 129 131 137 136 137 37 38 37 0 0 0 4 0 0 ++4 5 5 43 61 72 90 154 193 172 205 220 146 190 211 136 185 209 ++90 154 193 28 67 93 13 20 25 43 61 72 71 116 144 44 81 103 ++2 5 5 7 11 13 59 113 148 101 161 196 90 154 193 28 67 93 ++13 20 25 6 10 14 0 0 0 13 16 17 60 73 81 137 136 137 ++166 165 166 158 157 158 156 155 156 154 153 154 167 166 167 174 174 174 ++60 73 81 4 0 0 ++4 4 4 4 4 4 0 0 0 3 3 3 60 74 84 174 174 174 ++174 174 174 167 166 167 163 162 163 155 154 155 157 156 157 155 154 155 ++156 155 156 163 162 163 167 166 167 158 157 158 125 124 125 37 38 37 ++4 3 3 4 0 0 4 0 0 6 6 6 6 6 6 5 5 5 ++4 4 4 4 4 4 4 4 4 1 1 1 0 0 0 2 3 3 ++10 13 16 7 11 13 1 0 0 0 0 0 2 2 1 4 4 4 ++4 4 4 4 4 4 4 4 4 5 5 5 4 3 3 4 0 0 ++4 0 0 7 11 13 13 16 17 4 0 0 3 3 3 34 47 55 ++80 127 157 146 190 211 172 205 220 136 185 209 136 185 209 136 185 209 ++28 67 93 22 40 52 55 98 126 55 98 126 21 29 34 7 11 13 ++50 82 103 101 161 196 101 161 196 35 83 115 13 20 25 2 2 1 ++1 1 2 1 1 2 37 51 59 131 129 131 174 174 174 174 174 174 ++167 166 167 163 162 163 163 162 163 167 166 167 174 174 174 125 124 125 ++16 19 21 4 0 0 ++4 4 4 4 0 0 4 0 0 60 74 84 174 174 174 174 174 174 ++158 157 158 155 154 155 155 154 155 156 155 156 155 154 155 158 157 158 ++167 166 167 165 164 165 131 129 131 60 73 81 13 16 17 4 0 0 ++4 0 0 4 3 3 6 6 6 4 3 3 5 5 5 4 4 4 ++4 4 4 3 2 2 0 0 0 0 0 0 7 11 13 45 69 86 ++80 127 157 71 116 144 43 61 72 7 11 13 0 0 0 1 1 1 ++4 3 3 4 4 4 4 4 4 4 4 4 6 6 6 5 5 5 ++3 2 2 4 0 0 1 0 0 21 29 34 59 113 148 136 185 209 ++146 190 211 136 185 209 136 185 209 136 185 209 136 185 209 136 185 209 ++68 124 159 44 81 103 22 40 52 13 16 17 43 61 72 90 154 193 ++136 185 209 59 113 148 21 29 34 3 4 3 1 1 1 0 0 0 ++24 26 27 125 124 125 163 162 163 174 174 174 166 165 166 165 164 165 ++163 162 163 125 124 125 125 124 125 125 124 125 125 124 125 26 28 28 ++4 0 0 4 3 3 ++3 3 3 0 0 0 24 26 27 153 152 153 177 184 187 158 157 158 ++156 155 156 156 155 156 155 154 155 155 154 155 165 164 165 174 174 174 ++155 154 155 60 74 84 26 28 28 4 0 0 4 0 0 3 1 0 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 ++2 0 0 0 0 0 0 0 0 32 43 50 72 125 159 101 161 196 ++136 185 209 101 161 196 101 161 196 79 117 143 32 43 50 0 0 0 ++0 0 0 2 2 2 4 4 4 4 4 4 3 3 3 1 0 0 ++0 0 0 4 5 5 49 76 92 101 161 196 146 190 211 146 190 211 ++136 185 209 136 185 209 136 185 209 136 185 209 136 185 209 90 154 193 ++28 67 93 13 16 17 37 51 59 80 127 157 136 185 209 90 154 193 ++22 40 52 6 9 11 3 4 3 2 2 1 16 19 21 60 73 81 ++137 136 137 163 162 163 158 157 158 166 165 166 167 166 167 153 152 153 ++60 74 84 37 38 37 6 6 6 13 16 17 4 0 0 1 0 0 ++3 2 2 4 4 4 ++3 2 2 4 0 0 37 38 37 137 136 137 167 166 167 158 157 158 ++157 156 157 154 153 154 157 156 157 167 166 167 174 174 174 125 124 125 ++37 38 37 4 0 0 4 0 0 4 0 0 4 3 3 4 4 4 ++4 4 4 4 4 4 5 5 5 5 5 5 1 1 1 0 0 0 ++0 0 0 16 21 25 55 98 126 90 154 193 136 185 209 101 161 196 ++101 161 196 101 161 196 136 185 209 136 185 209 101 161 196 55 98 126 ++14 17 19 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ++22 40 52 90 154 193 146 190 211 146 190 211 136 185 209 136 185 209 ++136 185 209 136 185 209 136 185 209 101 161 196 35 83 115 7 11 13 ++17 23 27 59 113 148 136 185 209 101 161 196 34 86 122 7 12 15 ++2 5 5 3 4 3 6 6 6 60 73 81 131 129 131 163 162 163 ++166 165 166 174 174 174 174 174 174 163 162 163 125 124 125 41 54 63 ++13 16 17 4 0 0 4 0 0 4 0 0 1 0 0 2 2 2 ++4 4 4 4 4 4 ++1 1 1 2 1 0 43 57 68 137 136 137 153 152 153 153 152 153 ++163 162 163 156 155 156 165 164 165 167 166 167 60 74 84 6 6 6 ++4 0 0 4 0 0 5 5 5 4 4 4 4 4 4 4 4 4 ++4 5 5 6 6 6 4 3 3 0 0 0 0 0 0 11 15 18 ++40 71 93 100 139 164 101 161 196 101 161 196 101 161 196 101 161 196 ++101 161 196 101 161 196 101 161 196 101 161 196 136 185 209 136 185 209 ++101 161 196 45 69 86 6 6 6 0 0 0 17 23 27 55 98 126 ++136 185 209 146 190 211 136 185 209 136 185 209 136 185 209 136 185 209 ++136 185 209 136 185 209 90 154 193 22 40 52 7 11 13 50 82 103 ++136 185 209 136 185 209 53 118 160 22 40 52 7 11 13 2 5 5 ++3 4 3 37 38 37 125 124 125 157 156 157 166 165 166 167 166 167 ++174 174 174 174 174 174 137 136 137 60 73 81 4 0 0 4 0 0 ++4 0 0 4 0 0 5 5 5 3 3 3 3 3 3 4 4 4 ++4 4 4 4 4 4 ++4 0 0 4 0 0 41 54 63 137 136 137 125 124 125 131 129 131 ++155 154 155 167 166 167 174 174 174 60 74 84 6 6 6 4 0 0 ++4 3 3 6 6 6 4 4 4 4 4 4 4 4 4 5 5 5 ++4 4 4 1 1 1 0 0 0 3 6 7 41 65 82 72 125 159 ++101 161 196 101 161 196 101 161 196 90 154 193 90 154 193 101 161 196 ++101 161 196 101 161 196 101 161 196 101 161 196 101 161 196 136 185 209 ++136 185 209 136 185 209 80 127 157 55 98 126 101 161 196 146 190 211 ++136 185 209 136 185 209 136 185 209 101 161 196 136 185 209 101 161 196 ++136 185 209 101 161 196 35 83 115 22 30 35 101 161 196 172 205 220 ++90 154 193 28 67 93 7 11 13 2 5 5 3 4 3 13 16 17 ++85 115 134 167 166 167 174 174 174 174 174 174 174 174 174 174 174 174 ++167 166 167 60 74 84 13 16 17 4 0 0 4 0 0 4 3 3 ++6 6 6 5 5 5 4 4 4 5 5 5 4 4 4 5 5 5 ++5 5 5 5 5 5 ++1 1 1 4 0 0 41 54 63 137 136 137 137 136 137 125 124 125 ++131 129 131 167 166 167 157 156 157 37 38 37 6 6 6 4 0 0 ++6 6 6 5 5 5 4 4 4 4 4 4 4 5 5 2 2 1 ++0 0 0 0 0 0 26 37 45 58 111 146 101 161 196 101 161 196 ++101 161 196 90 154 193 90 154 193 90 154 193 101 161 196 101 161 196 ++101 161 196 101 161 196 101 161 196 101 161 196 101 161 196 101 161 196 ++101 161 196 136 185 209 136 185 209 136 185 209 146 190 211 136 185 209 ++136 185 209 101 161 196 136 185 209 136 185 209 101 161 196 136 185 209 ++101 161 196 136 185 209 136 185 209 136 185 209 136 185 209 16 89 141 ++7 11 13 2 5 5 2 5 5 13 16 17 60 73 81 154 154 154 ++174 174 174 174 174 174 174 174 174 174 174 174 163 162 163 125 124 125 ++24 26 27 4 0 0 4 0 0 4 0 0 5 5 5 5 5 5 ++4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 ++5 5 5 4 4 4 ++4 0 0 6 6 6 37 38 37 137 136 137 137 136 137 131 129 131 ++131 129 131 153 152 153 131 129 131 26 28 28 4 0 0 4 3 3 ++6 6 6 4 4 4 4 4 4 4 4 4 0 0 0 0 0 0 ++13 20 25 51 88 114 90 154 193 101 161 196 101 161 196 90 154 193 ++90 154 193 90 154 193 90 154 193 90 154 193 90 154 193 101 161 196 ++101 161 196 101 161 196 101 161 196 101 161 196 136 185 209 101 161 196 ++101 161 196 136 185 209 101 161 196 136 185 209 136 185 209 101 161 196 ++136 185 209 101 161 196 136 185 209 101 161 196 101 161 196 101 161 196 ++136 185 209 136 185 209 136 185 209 37 112 160 21 29 34 5 7 8 ++2 5 5 13 16 17 43 57 68 131 129 131 174 174 174 174 174 174 ++174 174 174 167 166 167 157 156 157 125 124 125 37 38 37 4 0 0 ++4 0 0 4 0 0 5 5 5 5 5 5 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++1 1 1 4 0 0 41 54 63 153 152 153 137 136 137 137 136 137 ++137 136 137 153 152 153 125 124 125 24 26 27 4 0 0 3 2 2 ++4 4 4 4 4 4 4 3 3 4 0 0 3 6 7 43 61 72 ++64 123 161 101 161 196 90 154 193 90 154 193 90 154 193 90 154 193 ++90 154 193 90 154 193 90 154 193 90 154 193 101 161 196 90 154 193 ++101 161 196 101 161 196 101 161 196 101 161 196 101 161 196 101 161 196 ++101 161 196 101 161 196 101 161 196 101 161 196 101 161 196 101 161 196 ++136 185 209 101 161 196 101 161 196 136 185 209 136 185 209 101 161 196 ++101 161 196 90 154 193 28 67 93 13 16 17 7 11 13 3 6 7 ++37 51 59 125 124 125 163 162 163 174 174 174 167 166 167 166 165 166 ++167 166 167 131 129 131 60 73 81 4 0 0 4 0 0 4 0 0 ++3 3 3 5 5 5 6 6 6 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 0 0 4 0 0 41 54 63 137 136 137 153 152 153 137 136 137 ++153 152 153 157 156 157 125 124 125 24 26 27 0 0 0 2 2 2 ++4 4 4 4 4 4 2 0 0 0 0 0 28 67 93 90 154 193 ++90 154 193 90 154 193 90 154 193 90 154 193 64 123 161 90 154 193 ++90 154 193 90 154 193 90 154 193 90 154 193 90 154 193 101 161 196 ++90 154 193 101 161 196 101 161 196 101 161 196 90 154 193 136 185 209 ++101 161 196 101 161 196 136 185 209 101 161 196 136 185 209 101 161 196 ++101 161 196 101 161 196 136 185 209 101 161 196 101 161 196 90 154 193 ++35 83 115 13 16 17 3 6 7 2 5 5 13 16 17 60 74 84 ++154 154 154 166 165 166 165 164 165 158 157 158 163 162 163 157 156 157 ++60 74 84 13 16 17 4 0 0 4 0 0 3 2 2 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++1 1 1 4 0 0 41 54 63 157 156 157 155 154 155 137 136 137 ++153 152 153 158 157 158 137 136 137 26 28 28 2 0 0 2 2 2 ++4 4 4 4 4 4 1 0 0 6 10 14 34 86 122 90 154 193 ++64 123 161 90 154 193 64 123 161 90 154 193 90 154 193 90 154 193 ++64 123 161 90 154 193 90 154 193 90 154 193 90 154 193 90 154 193 ++101 161 196 101 161 196 101 161 196 101 161 196 101 161 196 101 161 196 ++101 161 196 101 161 196 101 161 196 101 161 196 101 161 196 101 161 196 ++136 185 209 101 161 196 136 185 209 90 154 193 26 108 161 22 40 52 ++13 16 17 5 7 8 2 5 5 2 5 5 37 38 37 165 164 165 ++174 174 174 163 162 163 154 154 154 165 164 165 167 166 167 60 73 81 ++6 6 6 4 0 0 4 0 0 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 0 0 6 6 6 41 54 63 156 155 156 158 157 158 153 152 153 ++156 155 156 165 164 165 137 136 137 26 28 28 0 0 0 2 2 2 ++4 4 5 4 4 4 2 0 0 7 12 15 31 96 139 64 123 161 ++90 154 193 64 123 161 90 154 193 90 154 193 64 123 161 90 154 193 ++90 154 193 90 154 193 90 154 193 90 154 193 90 154 193 90 154 193 ++90 154 193 90 154 193 90 154 193 101 161 196 101 161 196 101 161 196 ++101 161 196 101 161 196 101 161 196 101 161 196 101 161 196 136 185 209 ++101 161 196 136 185 209 26 108 161 22 40 52 7 11 13 5 7 8 ++2 5 5 2 5 5 2 5 5 2 2 1 37 38 37 158 157 158 ++174 174 174 154 154 154 156 155 156 167 166 167 165 164 165 37 38 37 ++4 0 0 4 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++3 1 0 4 0 0 60 73 81 157 156 157 163 162 163 153 152 153 ++158 157 158 167 166 167 137 136 137 26 28 28 2 0 0 2 2 2 ++4 5 5 4 4 4 4 0 0 7 12 15 24 86 132 26 108 161 ++37 112 160 64 123 161 90 154 193 64 123 161 90 154 193 90 154 193 ++90 154 193 90 154 193 90 154 193 90 154 193 90 154 193 90 154 193 ++90 154 193 101 161 196 90 154 193 101 161 196 101 161 196 101 161 196 ++101 161 196 101 161 196 101 161 196 136 185 209 101 161 196 136 185 209 ++90 154 193 35 83 115 13 16 17 13 16 17 7 11 13 3 6 7 ++5 7 8 6 6 6 3 4 3 2 2 1 30 32 34 154 154 154 ++167 166 167 154 154 154 154 154 154 174 174 174 165 164 165 37 38 37 ++6 6 6 4 0 0 6 6 6 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 0 0 4 0 0 41 54 63 163 162 163 166 165 166 154 154 154 ++163 162 163 174 174 174 137 136 137 26 28 28 0 0 0 2 2 2 ++4 5 5 4 4 5 1 1 2 6 10 14 28 67 93 18 97 151 ++18 97 151 18 97 151 26 108 161 37 112 160 37 112 160 90 154 193 ++64 123 161 90 154 193 90 154 193 90 154 193 90 154 193 101 161 196 ++90 154 193 101 161 196 101 161 196 90 154 193 101 161 196 101 161 196 ++101 161 196 101 161 196 101 161 196 136 185 209 90 154 193 16 89 141 ++13 20 25 7 11 13 5 7 8 5 7 8 2 5 5 4 5 5 ++3 4 3 4 5 5 3 4 3 0 0 0 37 38 37 158 157 158 ++174 174 174 158 157 158 158 157 158 167 166 167 174 174 174 41 54 63 ++4 0 0 3 2 2 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++1 1 1 4 0 0 60 73 81 165 164 165 174 174 174 158 157 158 ++167 166 167 174 174 174 153 152 153 26 28 28 2 0 0 2 2 2 ++4 5 5 4 4 4 4 0 0 7 12 15 10 87 144 10 87 144 ++18 97 151 18 97 151 18 97 151 26 108 161 26 108 161 26 108 161 ++26 108 161 37 112 160 53 118 160 90 154 193 90 154 193 90 154 193 ++90 154 193 90 154 193 101 161 196 101 161 196 101 161 196 101 161 196 ++101 161 196 136 185 209 90 154 193 26 108 161 22 40 52 13 16 17 ++7 11 13 3 6 7 5 7 8 5 7 8 2 5 5 4 5 5 ++4 5 5 6 6 6 3 4 3 0 0 0 30 32 34 158 157 158 ++174 174 174 156 155 156 155 154 155 165 164 165 154 153 154 37 38 37 ++4 0 0 4 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 0 0 4 0 0 60 73 81 167 166 167 174 174 174 163 162 163 ++174 174 174 174 174 174 153 152 153 26 28 28 0 0 0 3 3 3 ++5 5 5 4 4 4 1 1 2 7 12 15 28 67 93 18 97 151 ++18 97 151 18 97 151 18 97 151 18 97 151 18 97 151 26 108 161 ++26 108 161 26 108 161 26 108 161 26 108 161 26 108 161 26 108 161 ++90 154 193 26 108 161 90 154 193 90 154 193 90 154 193 101 161 196 ++101 161 196 26 108 161 22 40 52 13 16 17 7 11 13 2 5 5 ++2 5 5 6 6 6 2 5 5 4 5 5 4 5 5 4 5 5 ++3 4 3 5 5 5 3 4 3 2 0 0 30 32 34 137 136 137 ++153 152 153 137 136 137 131 129 131 137 136 137 131 129 131 37 38 37 ++4 0 0 4 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++1 1 1 4 0 0 60 73 81 167 166 167 174 174 174 166 165 166 ++174 174 174 177 184 187 153 152 153 30 32 34 1 0 0 3 3 3 ++5 5 5 4 3 3 4 0 0 7 12 15 10 87 144 10 87 144 ++18 97 151 18 97 151 18 97 151 26 108 161 26 108 161 26 108 161 ++26 108 161 26 108 161 26 108 161 26 108 161 26 108 161 26 108 161 ++26 108 161 26 108 161 26 108 161 90 154 193 90 154 193 26 108 161 ++35 83 115 13 16 17 7 11 13 5 7 8 3 6 7 5 7 8 ++2 5 5 6 6 6 4 5 5 4 5 5 3 4 3 4 5 5 ++3 4 3 6 6 6 3 4 3 0 0 0 26 28 28 125 124 125 ++131 129 131 125 124 125 125 124 125 131 129 131 131 129 131 37 38 37 ++4 0 0 3 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++3 1 0 4 0 0 60 73 81 174 174 174 177 184 187 167 166 167 ++174 174 174 177 184 187 153 152 153 30 32 34 0 0 0 3 3 3 ++5 5 5 4 4 4 1 1 2 6 10 14 28 67 93 18 97 151 ++18 97 151 18 97 151 18 97 151 18 97 151 18 97 151 26 108 161 ++26 108 161 26 108 161 26 108 161 26 108 161 26 108 161 26 108 161 ++26 108 161 90 154 193 26 108 161 26 108 161 24 86 132 13 20 25 ++7 11 13 13 20 25 22 40 52 5 7 8 3 4 3 3 4 3 ++4 5 5 3 4 3 4 5 5 3 4 3 4 5 5 3 4 3 ++4 4 4 5 5 5 3 3 3 2 0 0 26 28 28 125 124 125 ++137 136 137 125 124 125 125 124 125 137 136 137 131 129 131 37 38 37 ++0 0 0 3 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++1 1 1 4 0 0 60 73 81 174 174 174 177 184 187 174 174 174 ++174 174 174 190 197 201 157 156 157 30 32 34 1 0 0 3 3 3 ++5 5 5 4 3 3 4 0 0 7 12 15 10 87 144 10 87 144 ++18 97 151 19 95 150 19 95 150 18 97 151 18 97 151 26 108 161 ++18 97 151 26 108 161 26 108 161 26 108 161 26 108 161 90 154 193 ++26 108 161 26 108 161 26 108 161 22 40 52 2 5 5 3 4 3 ++28 67 93 37 112 160 34 86 122 2 5 5 3 4 3 3 4 3 ++3 4 3 3 4 3 3 4 3 2 2 1 3 4 3 4 4 4 ++4 5 5 5 5 5 3 3 3 0 0 0 26 28 28 131 129 131 ++137 136 137 125 124 125 125 124 125 137 136 137 131 129 131 37 38 37 ++0 0 0 3 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 0 0 4 0 0 60 73 81 174 174 174 177 184 187 174 174 174 ++174 174 174 190 197 201 158 157 158 30 32 34 0 0 0 2 2 2 ++5 5 5 4 4 4 1 1 2 6 10 14 28 67 93 18 97 151 ++10 87 144 19 95 150 19 95 150 18 97 151 18 97 151 18 97 151 ++26 108 161 26 108 161 26 108 161 26 108 161 26 108 161 26 108 161 ++18 97 151 22 40 52 2 5 5 2 2 1 22 40 52 26 108 161 ++90 154 193 37 112 160 22 40 52 3 4 3 13 20 25 22 30 35 ++3 6 7 1 1 1 2 2 2 6 9 11 5 5 5 4 3 3 ++4 4 4 5 5 5 3 3 3 2 0 0 26 28 28 131 129 131 ++137 136 137 125 124 125 125 124 125 137 136 137 131 129 131 37 38 37 ++0 0 0 3 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++1 1 1 4 0 0 60 73 81 177 184 187 193 200 203 174 174 174 ++177 184 187 193 200 203 163 162 163 30 32 34 4 0 0 2 2 2 ++5 5 5 4 3 3 4 0 0 6 10 14 24 86 132 10 87 144 ++10 87 144 10 87 144 19 95 150 19 95 150 19 95 150 18 97 151 ++26 108 161 26 108 161 26 108 161 90 154 193 26 108 161 28 67 93 ++6 10 14 2 5 5 13 20 25 24 86 132 37 112 160 90 154 193 ++10 87 144 7 12 15 2 5 5 28 67 93 37 112 160 28 67 93 ++2 2 1 7 12 15 35 83 115 28 67 93 3 6 7 1 0 0 ++4 4 4 5 5 5 3 3 3 0 0 0 26 28 28 131 129 131 ++137 136 137 125 124 125 125 124 125 137 136 137 131 129 131 37 38 37 ++0 0 0 3 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 0 0 4 0 0 60 73 81 174 174 174 190 197 201 174 174 174 ++177 184 187 193 200 203 163 162 163 30 32 34 0 0 0 2 2 2 ++5 5 5 4 4 4 1 1 2 6 10 14 28 67 93 10 87 144 ++10 87 144 16 89 141 19 95 150 10 87 144 26 108 161 26 108 161 ++26 108 161 26 108 161 26 108 161 28 67 93 6 10 14 1 1 2 ++7 12 15 28 67 93 26 108 161 16 89 141 24 86 132 21 29 34 ++3 4 3 21 29 34 37 112 160 37 112 160 27 99 146 21 29 34 ++21 29 34 26 108 161 90 154 193 35 83 115 1 1 2 2 0 0 ++4 4 4 5 5 5 3 3 3 2 0 0 26 28 28 125 124 125 ++137 136 137 125 124 125 125 124 125 137 136 137 131 129 131 37 38 37 ++0 0 0 3 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++3 1 0 4 0 0 60 73 81 193 200 203 193 200 203 174 174 174 ++190 197 201 193 200 203 165 164 165 37 38 37 4 0 0 2 2 2 ++5 5 5 4 3 3 4 0 0 6 10 14 24 86 132 10 87 144 ++10 87 144 10 87 144 16 89 141 18 97 151 18 97 151 10 87 144 ++24 86 132 24 86 132 13 20 25 4 5 7 4 5 7 22 40 52 ++18 97 151 37 112 160 26 108 161 7 12 15 1 1 1 0 0 0 ++28 67 93 37 112 160 26 108 161 28 67 93 22 40 52 28 67 93 ++26 108 161 90 154 193 26 108 161 10 87 144 0 0 0 2 0 0 ++4 4 4 5 5 5 3 3 3 0 0 0 26 28 28 131 129 131 ++137 136 137 125 124 125 125 124 125 137 136 137 131 129 131 37 38 37 ++0 0 0 3 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 0 0 6 6 6 60 73 81 174 174 174 193 200 203 174 174 174 ++190 197 201 193 200 203 165 164 165 30 32 34 0 0 0 2 2 2 ++5 5 5 4 4 4 1 1 2 6 10 14 28 67 93 10 87 144 ++10 87 144 10 87 144 10 87 144 18 97 151 28 67 93 6 10 14 ++0 0 0 1 1 2 4 5 7 13 20 25 16 89 141 26 108 161 ++26 108 161 26 108 161 24 86 132 6 9 11 2 3 3 22 40 52 ++37 112 160 16 89 141 22 40 52 28 67 93 26 108 161 26 108 161 ++90 154 193 26 108 161 26 108 161 28 67 93 1 1 1 4 0 0 ++4 4 4 5 5 5 3 3 3 4 0 0 26 28 28 124 126 130 ++137 136 137 125 124 125 125 124 125 137 136 137 131 129 131 37 38 37 ++0 0 0 3 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 0 0 4 0 0 60 73 81 193 200 203 193 200 203 174 174 174 ++193 200 203 193 200 203 167 166 167 37 38 37 4 0 0 2 2 2 ++5 5 5 4 4 4 4 0 0 6 10 14 28 67 93 10 87 144 ++10 87 144 10 87 144 18 97 151 10 87 144 13 20 25 4 5 7 ++1 1 2 1 1 1 22 40 52 26 108 161 26 108 161 26 108 161 ++26 108 161 26 108 161 26 108 161 24 86 132 22 40 52 22 40 52 ++22 40 52 22 40 52 10 87 144 26 108 161 26 108 161 26 108 161 ++26 108 161 26 108 161 90 154 193 10 87 144 0 0 0 4 0 0 ++4 4 4 5 5 5 3 3 3 0 0 0 26 28 28 131 129 131 ++137 136 137 125 124 125 125 124 125 137 136 137 131 129 131 37 38 37 ++0 0 0 3 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 0 0 6 6 6 60 73 81 174 174 174 220 221 221 174 174 174 ++190 197 201 205 212 215 167 166 167 30 32 34 0 0 0 2 2 2 ++5 5 5 4 4 4 1 1 2 6 10 14 28 67 93 10 87 144 ++10 87 144 10 87 144 10 87 144 10 87 144 22 40 52 1 1 2 ++2 0 0 1 1 2 24 86 132 26 108 161 26 108 161 26 108 161 ++26 108 161 19 95 150 16 89 141 10 87 144 22 40 52 22 40 52 ++10 87 144 26 108 161 37 112 160 26 108 161 26 108 161 26 108 161 ++26 108 161 26 108 161 26 108 161 28 67 93 2 0 0 3 1 0 ++4 4 4 5 5 5 3 3 3 2 0 0 26 28 28 131 129 131 ++137 136 137 125 124 125 125 124 125 137 136 137 131 129 131 37 38 37 ++0 0 0 3 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 0 0 4 0 0 60 73 81 220 221 221 190 197 201 174 174 174 ++193 200 203 193 200 203 174 174 174 37 38 37 4 0 0 2 2 2 ++5 5 5 4 4 4 3 2 2 1 1 2 13 20 25 10 87 144 ++10 87 144 10 87 144 10 87 144 10 87 144 10 87 144 13 20 25 ++13 20 25 22 40 52 10 87 144 18 97 151 18 97 151 26 108 161 ++10 87 144 13 20 25 6 10 14 21 29 34 24 86 132 18 97 151 ++26 108 161 26 108 161 26 108 161 26 108 161 26 108 161 26 108 161 ++26 108 161 90 154 193 18 97 151 13 20 25 0 0 0 4 3 3 ++4 4 4 5 5 5 3 3 3 0 0 0 26 28 28 131 129 131 ++137 136 137 125 124 125 125 124 125 137 136 137 131 129 131 37 38 37 ++0 0 0 3 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 0 0 6 6 6 60 73 81 174 174 174 220 221 221 174 174 174 ++190 197 201 220 221 221 167 166 167 30 32 34 1 0 0 2 2 2 ++5 5 5 4 4 4 4 4 5 2 5 5 4 5 7 13 20 25 ++28 67 93 10 87 144 10 87 144 10 87 144 10 87 144 10 87 144 ++10 87 144 10 87 144 18 97 151 10 87 144 18 97 151 18 97 151 ++28 67 93 2 3 3 0 0 0 28 67 93 26 108 161 26 108 161 ++26 108 161 26 108 161 26 108 161 26 108 161 26 108 161 26 108 161 ++26 108 161 10 87 144 13 20 25 1 1 2 3 2 2 4 4 4 ++4 4 4 5 5 5 3 3 3 2 0 0 26 28 28 131 129 131 ++137 136 137 125 124 125 125 124 125 137 136 137 131 129 131 37 38 37 ++0 0 0 3 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 0 0 4 0 0 60 73 81 220 221 221 190 197 201 174 174 174 ++193 200 203 193 200 203 174 174 174 26 28 28 4 0 0 4 3 3 ++5 5 5 4 4 4 4 4 4 4 4 5 1 1 2 2 5 5 ++4 5 7 22 40 52 10 87 144 10 87 144 18 97 151 10 87 144 ++10 87 144 10 87 144 10 87 144 10 87 144 10 87 144 18 97 151 ++10 87 144 28 67 93 22 40 52 10 87 144 26 108 161 18 97 151 ++18 97 151 18 97 151 26 108 161 26 108 161 26 108 161 26 108 161 ++22 40 52 1 1 2 0 0 0 2 3 3 4 4 4 4 4 4 ++4 4 4 5 5 5 4 4 4 0 0 0 26 28 28 131 129 131 ++137 136 137 125 124 125 125 124 125 137 136 137 131 129 131 37 38 37 ++0 0 0 3 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 0 0 6 6 6 60 73 81 174 174 174 220 221 221 174 174 174 ++190 197 201 220 221 221 190 197 201 41 54 63 4 0 0 2 2 2 ++6 6 6 4 4 4 4 4 4 4 4 5 4 4 5 3 3 3 ++1 1 2 1 1 2 6 10 14 22 40 52 10 87 144 18 97 151 ++18 97 151 10 87 144 10 87 144 10 87 144 18 97 151 10 87 144 ++10 87 144 18 97 151 26 108 161 18 97 151 18 97 151 10 87 144 ++26 108 161 26 108 161 26 108 161 10 87 144 28 67 93 6 10 14 ++1 1 2 1 1 2 4 3 3 4 4 5 4 4 4 4 4 4 ++5 5 5 5 5 5 1 1 1 4 0 0 37 51 59 137 136 137 ++137 136 137 125 124 125 125 124 125 137 136 137 131 129 131 37 38 37 ++0 0 0 3 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 0 0 4 0 0 60 73 81 220 221 221 193 200 203 174 174 174 ++193 200 203 193 200 203 220 221 221 137 136 137 13 16 17 4 0 0 ++2 2 2 4 4 4 4 4 4 4 4 4 4 4 4 4 4 5 ++4 4 5 4 3 3 1 1 2 4 5 7 13 20 25 28 67 93 ++10 87 144 10 87 144 10 87 144 10 87 144 10 87 144 10 87 144 ++10 87 144 18 97 151 18 97 151 10 87 144 18 97 151 26 108 161 ++26 108 161 18 97 151 28 67 93 6 10 14 0 0 0 0 0 0 ++2 3 3 4 5 5 4 4 5 4 4 4 4 4 4 5 5 5 ++3 3 3 1 1 1 0 0 0 16 19 21 125 124 125 137 136 137 ++131 129 131 125 124 125 125 124 125 137 136 137 131 129 131 37 38 37 ++0 0 0 3 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 0 0 6 6 6 60 73 81 174 174 174 220 221 221 174 174 174 ++193 200 203 190 197 201 220 221 221 220 221 221 153 152 153 30 32 34 ++0 0 0 0 0 0 2 2 2 4 4 4 4 4 4 4 4 4 ++4 4 4 4 5 5 4 5 7 1 1 2 1 1 2 4 5 7 ++13 20 25 28 67 93 10 87 144 18 97 151 10 87 144 10 87 144 ++10 87 144 10 87 144 10 87 144 18 97 151 26 108 161 18 97 151 ++28 67 93 7 12 15 0 0 0 0 0 0 2 2 1 4 4 4 ++4 5 5 4 5 5 4 4 4 4 4 4 3 3 3 0 0 0 ++0 0 0 0 0 0 37 38 37 125 124 125 158 157 158 131 129 131 ++125 124 125 125 124 125 125 124 125 137 136 137 131 129 131 37 38 37 ++0 0 0 3 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 3 3 4 0 0 41 54 63 193 200 203 220 221 221 174 174 174 ++193 200 203 193 200 203 193 200 203 220 221 221 244 246 246 193 200 203 ++120 125 127 5 5 5 1 0 0 0 0 0 1 1 1 4 4 4 ++4 4 4 4 4 4 4 5 5 4 5 5 4 4 5 1 1 2 ++4 5 7 4 5 7 22 40 52 10 87 144 10 87 144 10 87 144 ++10 87 144 10 87 144 18 97 151 10 87 144 10 87 144 13 20 25 ++4 5 7 2 3 3 1 1 2 4 4 4 4 5 5 4 4 4 ++4 4 4 4 4 4 4 4 4 1 1 1 0 0 0 1 1 2 ++24 26 27 60 74 84 153 152 153 163 162 163 137 136 137 125 124 125 ++125 124 125 125 124 125 125 124 125 137 136 137 125 124 125 26 28 28 ++0 0 0 3 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 0 0 6 6 6 26 28 28 156 155 156 220 221 221 220 221 221 ++174 174 174 193 200 203 193 200 203 193 200 203 205 212 215 220 221 221 ++220 221 221 167 166 167 60 73 81 7 11 13 0 0 0 0 0 0 ++3 3 3 4 4 4 4 4 4 4 4 4 4 4 5 4 4 5 ++4 4 5 1 1 2 1 1 2 4 5 7 22 40 52 10 87 144 ++10 87 144 10 87 144 10 87 144 22 40 52 4 5 7 1 1 2 ++1 1 2 4 4 5 4 4 4 4 4 4 4 4 4 4 4 4 ++5 5 5 2 2 2 0 0 0 4 0 0 16 19 21 60 73 81 ++137 136 137 167 166 167 158 157 158 137 136 137 131 129 131 131 129 131 ++125 124 125 125 124 125 131 129 131 155 154 155 60 74 84 5 7 8 ++0 0 0 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++5 5 5 4 0 0 4 0 0 60 73 81 193 200 203 220 221 221 ++193 200 203 193 200 203 193 200 203 193 200 203 205 212 215 220 221 221 ++220 221 221 220 221 221 220 221 221 137 136 137 43 57 68 6 6 6 ++4 0 0 1 1 1 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 5 4 4 5 3 2 2 1 1 2 2 5 5 13 20 25 ++22 40 52 22 40 52 13 20 25 2 3 3 1 1 2 3 3 3 ++4 5 7 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++1 1 1 0 0 0 2 3 3 41 54 63 131 129 131 166 165 166 ++166 165 166 155 154 155 153 152 153 137 136 137 137 136 137 125 124 125 ++125 124 125 137 136 137 137 136 137 125 124 125 37 38 37 4 3 3 ++4 3 3 5 5 5 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 3 3 6 6 6 6 6 6 13 16 17 60 73 81 167 166 167 ++220 221 221 220 221 221 220 221 221 193 200 203 193 200 203 193 200 203 ++205 212 215 220 221 221 220 221 221 244 246 246 205 212 215 125 124 125 ++24 26 27 0 0 0 0 0 0 2 2 2 5 5 5 5 5 5 ++4 4 4 4 4 4 4 4 4 4 4 5 1 1 2 4 5 7 ++4 5 7 4 5 7 1 1 2 3 2 2 4 4 5 4 4 4 ++4 4 4 4 4 4 5 5 5 4 4 4 0 0 0 0 0 0 ++2 0 0 26 28 28 125 124 125 174 174 174 174 174 174 166 165 166 ++156 155 156 153 152 153 137 136 137 137 136 137 131 129 131 137 136 137 ++137 136 137 137 136 137 60 74 84 30 32 34 4 0 0 4 0 0 ++5 5 5 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++5 5 5 6 6 6 4 0 0 4 0 0 6 6 6 26 28 28 ++125 124 125 174 174 174 220 221 221 220 221 221 220 221 221 193 200 203 ++205 212 215 220 221 221 205 212 215 220 221 221 220 221 221 244 246 246 ++193 200 203 60 74 84 13 16 17 4 0 0 0 0 0 3 3 3 ++5 5 5 5 5 5 4 4 4 4 4 4 4 4 5 3 3 3 ++1 1 2 3 3 3 4 4 5 4 4 5 4 4 4 4 4 4 ++5 5 5 5 5 5 2 2 2 0 0 0 0 0 0 13 16 17 ++60 74 84 174 174 174 193 200 203 174 174 174 167 166 167 163 162 163 ++153 152 153 153 152 153 137 136 137 137 136 137 153 152 153 137 136 137 ++125 124 125 41 54 63 24 26 27 4 0 0 4 0 0 5 5 5 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 3 3 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 ++6 6 6 37 38 37 131 129 131 220 221 221 220 221 221 220 221 221 ++193 200 203 193 200 203 220 221 221 205 212 215 220 221 221 244 246 246 ++244 246 246 244 246 246 174 174 174 41 54 63 0 0 0 0 0 0 ++0 0 0 4 4 4 5 5 5 5 5 5 4 4 4 4 4 5 ++4 4 5 4 4 5 4 4 4 4 4 4 6 6 6 6 6 6 ++3 3 3 0 0 0 2 0 0 13 16 17 60 73 81 156 155 156 ++220 221 221 193 200 203 174 174 174 165 164 165 163 162 163 154 153 154 ++153 152 153 153 152 153 158 157 158 163 162 163 137 136 137 60 73 81 ++13 16 17 4 0 0 4 0 0 4 3 3 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++5 5 5 4 3 3 4 3 3 6 6 6 6 6 6 6 6 6 ++6 6 6 6 6 6 6 6 6 37 38 37 167 166 167 244 246 246 ++244 246 246 220 221 221 205 212 215 205 212 215 220 221 221 193 200 203 ++220 221 221 244 246 246 244 246 246 244 246 246 137 136 137 37 38 37 ++3 2 2 0 0 0 1 1 1 5 5 5 5 5 5 4 4 4 ++4 4 4 4 4 4 4 4 4 5 5 5 4 4 4 1 1 1 ++0 0 0 5 5 5 43 57 68 153 152 153 193 200 203 220 221 221 ++177 184 187 174 174 174 167 166 167 166 165 166 158 157 158 157 156 157 ++158 157 158 166 165 166 156 155 156 85 115 134 13 16 17 4 0 0 ++4 0 0 4 0 0 5 5 5 5 5 5 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++5 5 5 4 3 3 6 6 6 6 6 6 4 0 0 6 6 6 ++6 6 6 6 6 6 6 6 6 6 6 6 13 16 17 60 73 81 ++177 184 187 220 221 221 220 221 221 220 221 221 205 212 215 220 221 221 ++220 221 221 205 212 215 220 221 221 244 246 246 244 246 246 205 212 215 ++125 124 125 30 32 34 0 0 0 0 0 0 2 2 2 5 5 5 ++4 4 4 4 4 4 4 4 4 1 1 1 0 0 0 1 0 0 ++37 38 37 131 129 131 205 212 215 220 221 221 193 200 203 174 174 174 ++174 174 174 174 174 174 167 166 167 165 164 165 166 165 166 167 166 167 ++158 157 158 125 124 125 37 38 37 4 0 0 4 0 0 4 0 0 ++4 3 3 5 5 5 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 5 5 5 4 3 3 4 3 3 6 6 6 6 6 6 ++4 0 0 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 ++26 28 28 125 124 125 205 212 215 220 221 221 220 221 221 220 221 221 ++205 212 215 220 221 221 205 212 215 220 221 221 220 221 221 244 246 246 ++244 246 246 190 197 201 60 74 84 16 19 21 4 0 0 0 0 0 ++0 0 0 0 0 0 0 0 0 0 0 0 16 19 21 120 125 127 ++177 184 187 220 221 221 205 212 215 177 184 187 174 174 174 177 184 187 ++174 174 174 174 174 174 167 166 167 174 174 174 166 165 166 137 136 137 ++60 73 81 13 16 17 4 0 0 4 0 0 4 3 3 6 6 6 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++5 5 5 4 3 3 5 5 5 4 3 3 6 6 6 4 0 0 ++6 6 6 6 6 6 4 0 0 6 6 6 4 0 0 6 6 6 ++6 6 6 6 6 6 37 38 37 137 136 137 193 200 203 220 221 221 ++220 221 221 205 212 215 220 221 221 205 212 215 205 212 215 220 221 221 ++220 221 221 220 221 221 244 246 246 166 165 166 43 57 68 2 2 2 ++0 0 0 4 0 0 16 19 21 60 73 81 157 156 157 202 210 214 ++220 221 221 193 200 203 177 184 187 177 184 187 177 184 187 174 174 174 ++174 174 174 174 174 174 174 174 174 157 156 157 60 74 84 24 26 27 ++4 0 0 4 0 0 4 0 0 6 6 6 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 5 5 5 4 3 3 5 5 5 6 6 6 ++6 6 6 4 0 0 6 6 6 6 6 6 6 6 6 4 0 0 ++4 0 0 4 0 0 6 6 6 24 26 27 60 73 81 167 166 167 ++220 221 221 220 221 221 220 221 221 205 212 215 205 212 215 205 212 215 ++205 212 215 220 221 221 220 221 221 220 221 221 205 212 215 137 136 137 ++60 74 84 125 124 125 137 136 137 190 197 201 220 221 221 193 200 203 ++177 184 187 177 184 187 177 184 187 174 174 174 174 174 174 177 184 187 ++190 197 201 174 174 174 125 124 125 37 38 37 6 6 6 4 0 0 ++4 0 0 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 5 5 5 5 5 5 4 3 3 6 6 6 ++4 0 0 6 6 6 6 6 6 6 6 6 4 0 0 6 6 6 ++6 6 6 6 6 6 4 0 0 4 0 0 6 6 6 6 6 6 ++125 124 125 193 200 203 244 246 246 220 221 221 205 212 215 205 212 215 ++205 212 215 193 200 203 205 212 215 205 212 215 220 221 221 220 221 221 ++193 200 203 193 200 203 205 212 215 193 200 203 193 200 203 177 184 187 ++190 197 201 190 197 201 174 174 174 190 197 201 193 200 203 190 197 201 ++153 152 153 60 73 81 4 0 0 4 0 0 4 0 0 3 2 2 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 4 3 3 ++6 6 6 4 3 3 4 3 3 4 3 3 6 6 6 6 6 6 ++4 0 0 6 6 6 6 6 6 6 6 6 4 0 0 4 0 0 ++4 0 0 26 28 28 131 129 131 220 221 221 244 246 246 220 221 221 ++205 212 215 193 200 203 205 212 215 193 200 203 193 200 203 205 212 215 ++220 221 221 193 200 203 193 200 203 193 200 203 190 197 201 174 174 174 ++174 174 174 190 197 201 193 200 203 193 200 203 167 166 167 125 124 125 ++6 6 6 4 0 0 4 0 0 4 3 3 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 ++5 5 5 4 3 3 5 5 5 6 6 6 4 3 3 5 5 5 ++6 6 6 6 6 6 4 0 0 6 6 6 6 6 6 6 6 6 ++4 0 0 4 0 0 6 6 6 41 54 63 158 157 158 220 221 221 ++220 221 221 220 221 221 193 200 203 193 200 203 193 200 203 190 197 201 ++190 197 201 190 197 201 190 197 201 190 197 201 174 174 174 193 200 203 ++193 200 203 220 221 221 174 174 174 125 124 125 37 38 37 4 0 0 ++4 0 0 4 3 3 6 6 6 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 5 5 5 4 3 3 4 3 3 4 3 3 5 5 5 ++4 3 3 6 6 6 5 5 5 4 3 3 6 6 6 6 6 6 ++6 6 6 6 6 6 4 0 0 4 0 0 13 16 17 60 73 81 ++174 174 174 220 221 221 220 221 221 205 212 215 190 197 201 174 174 174 ++193 200 203 174 174 174 190 197 201 174 174 174 193 200 203 220 221 221 ++193 200 203 131 129 131 37 38 37 6 6 6 4 0 0 4 0 0 ++6 6 6 6 6 6 4 3 3 5 5 5 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 ++5 5 5 4 3 3 4 3 3 5 5 5 4 3 3 4 3 3 ++5 5 5 6 6 6 6 6 6 4 0 0 6 6 6 6 6 6 ++6 6 6 125 124 125 174 174 174 220 221 221 220 221 221 193 200 203 ++193 200 203 193 200 203 193 200 203 193 200 203 220 221 221 158 157 158 ++60 73 81 6 6 6 4 0 0 4 0 0 5 5 5 6 6 6 ++5 5 5 5 5 5 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 5 5 5 5 5 5 4 3 3 5 5 5 4 3 3 ++5 5 5 5 5 5 6 6 6 6 6 6 4 0 0 4 0 0 ++4 0 0 4 0 0 26 28 28 125 124 125 174 174 174 193 200 203 ++193 200 203 174 174 174 193 200 203 167 166 167 125 124 125 6 6 6 ++6 6 6 6 6 6 4 0 0 6 6 6 6 6 6 5 5 5 ++4 3 3 5 5 5 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 ++4 3 3 6 6 6 4 0 0 6 6 6 6 6 6 6 6 6 ++6 6 6 4 0 0 4 0 0 6 6 6 37 38 37 125 124 125 ++153 152 153 131 129 131 125 124 125 37 38 37 6 6 6 6 6 6 ++6 6 6 4 0 0 6 6 6 6 6 6 4 3 3 5 5 5 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 5 5 5 5 5 5 4 3 3 5 5 5 4 3 3 ++6 6 6 6 6 6 4 0 0 4 0 0 6 6 6 6 6 6 ++24 26 27 24 26 27 6 6 6 6 6 6 6 6 6 4 0 0 ++6 6 6 6 6 6 4 0 0 6 6 6 5 5 5 4 3 3 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 5 5 5 4 3 3 5 5 5 6 6 6 ++4 0 0 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 ++6 6 6 6 6 6 6 6 6 4 0 0 6 6 6 6 6 6 ++4 0 0 6 6 6 6 6 6 4 3 3 5 5 5 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 5 5 5 4 3 3 5 5 5 ++5 5 5 5 5 5 4 0 0 6 6 6 4 0 0 6 6 6 ++6 6 6 6 6 6 6 6 6 4 0 0 6 6 6 4 0 0 ++6 6 6 4 3 3 5 5 5 4 3 3 5 5 5 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 ++4 3 3 6 6 6 4 3 3 6 6 6 6 6 6 6 6 6 ++4 0 0 6 6 6 4 0 0 6 6 6 6 6 6 6 6 6 ++6 6 6 4 3 3 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 5 5 5 4 3 3 5 5 5 4 0 0 6 6 6 ++6 6 6 4 0 0 6 6 6 6 6 6 4 0 0 6 6 6 ++4 3 3 5 5 5 5 5 5 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 5 5 5 4 3 3 5 5 5 6 6 6 4 3 3 ++4 3 3 6 6 6 6 6 6 4 3 3 6 6 6 4 3 3 ++5 5 5 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 5 5 5 4 3 3 6 6 6 ++5 5 5 4 3 3 4 3 3 4 3 3 5 5 5 5 5 5 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 4 3 3 ++5 5 5 4 3 3 5 5 5 5 5 5 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ++4 4 4 4 4 4 +diff --git a/drivers/video/udlfb.c b/drivers/video/udlfb.c +index a159b63..4ab532d 100644 +--- a/drivers/video/udlfb.c ++++ b/drivers/video/udlfb.c +@@ -620,11 +620,11 @@ int dlfb_handle_damage(struct dlfb_data *dev, int x, int y, + dlfb_urb_completion(urb); + + error: +- atomic_add(bytes_sent, &dev->bytes_sent); +- atomic_add(bytes_identical, &dev->bytes_identical); +- atomic_add(width*height*2, &dev->bytes_rendered); ++ atomic_add_unchecked(bytes_sent, &dev->bytes_sent); ++ atomic_add_unchecked(bytes_identical, &dev->bytes_identical); ++ atomic_add_unchecked(width*height*2, &dev->bytes_rendered); + end_cycles = get_cycles(); +- atomic_add(((unsigned int) ((end_cycles - start_cycles) ++ atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles) + >> 10)), /* Kcycles */ + &dev->cpu_kcycles_used); + +@@ -745,11 +745,11 @@ static void dlfb_dpy_deferred_io(struct fb_info *info, + dlfb_urb_completion(urb); + + error: +- atomic_add(bytes_sent, &dev->bytes_sent); +- atomic_add(bytes_identical, &dev->bytes_identical); +- atomic_add(bytes_rendered, &dev->bytes_rendered); ++ atomic_add_unchecked(bytes_sent, &dev->bytes_sent); ++ atomic_add_unchecked(bytes_identical, &dev->bytes_identical); ++ atomic_add_unchecked(bytes_rendered, &dev->bytes_rendered); + end_cycles = get_cycles(); +- atomic_add(((unsigned int) ((end_cycles - start_cycles) ++ atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles) + >> 10)), /* Kcycles */ + &dev->cpu_kcycles_used); + } +@@ -1373,7 +1373,7 @@ static ssize_t metrics_bytes_rendered_show(struct device *fbdev, + struct fb_info *fb_info = dev_get_drvdata(fbdev); + struct dlfb_data *dev = fb_info->par; + return snprintf(buf, PAGE_SIZE, "%u\n", +- atomic_read(&dev->bytes_rendered)); ++ atomic_read_unchecked(&dev->bytes_rendered)); + } + + static ssize_t metrics_bytes_identical_show(struct device *fbdev, +@@ -1381,7 +1381,7 @@ static ssize_t metrics_bytes_identical_show(struct device *fbdev, + struct fb_info *fb_info = dev_get_drvdata(fbdev); + struct dlfb_data *dev = fb_info->par; + return snprintf(buf, PAGE_SIZE, "%u\n", +- atomic_read(&dev->bytes_identical)); ++ atomic_read_unchecked(&dev->bytes_identical)); + } + + static ssize_t metrics_bytes_sent_show(struct device *fbdev, +@@ -1389,7 +1389,7 @@ static ssize_t metrics_bytes_sent_show(struct device *fbdev, + struct fb_info *fb_info = dev_get_drvdata(fbdev); + struct dlfb_data *dev = fb_info->par; + return snprintf(buf, PAGE_SIZE, "%u\n", +- atomic_read(&dev->bytes_sent)); ++ atomic_read_unchecked(&dev->bytes_sent)); + } + + static ssize_t metrics_cpu_kcycles_used_show(struct device *fbdev, +@@ -1397,7 +1397,7 @@ static ssize_t metrics_cpu_kcycles_used_show(struct device *fbdev, + struct fb_info *fb_info = dev_get_drvdata(fbdev); + struct dlfb_data *dev = fb_info->par; + return snprintf(buf, PAGE_SIZE, "%u\n", +- atomic_read(&dev->cpu_kcycles_used)); ++ atomic_read_unchecked(&dev->cpu_kcycles_used)); + } + + static ssize_t edid_show( +@@ -1457,10 +1457,10 @@ static ssize_t metrics_reset_store(struct device *fbdev, + struct fb_info *fb_info = dev_get_drvdata(fbdev); + struct dlfb_data *dev = fb_info->par; + +- atomic_set(&dev->bytes_rendered, 0); +- atomic_set(&dev->bytes_identical, 0); +- atomic_set(&dev->bytes_sent, 0); +- atomic_set(&dev->cpu_kcycles_used, 0); ++ atomic_set_unchecked(&dev->bytes_rendered, 0); ++ atomic_set_unchecked(&dev->bytes_identical, 0); ++ atomic_set_unchecked(&dev->bytes_sent, 0); ++ atomic_set_unchecked(&dev->cpu_kcycles_used, 0); + + return count; + } +diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c +index b0e2a42..e2df3ad 100644 +--- a/drivers/video/uvesafb.c ++++ b/drivers/video/uvesafb.c +@@ -19,6 +19,7 @@ + #include <linux/io.h> + #include <linux/mutex.h> + #include <linux/slab.h> ++#include <linux/moduleloader.h> + #include <video/edid.h> + #include <video/uvesafb.h> + #ifdef CONFIG_X86 +@@ -569,10 +570,32 @@ static int __devinit uvesafb_vbe_getpmi(struct uvesafb_ktask *task, + if ((task->t.regs.eax & 0xffff) != 0x4f || task->t.regs.es < 0xc000) { + par->pmi_setpal = par->ypan = 0; + } else { ++ ++#ifdef CONFIG_PAX_KERNEXEC ++#ifdef CONFIG_MODULES ++ par->pmi_code = module_alloc_exec((u16)task->t.regs.ecx); ++#endif ++ if (!par->pmi_code) { ++ par->pmi_setpal = par->ypan = 0; ++ return 0; ++ } ++#endif ++ + par->pmi_base = (u16 *)phys_to_virt(((u32)task->t.regs.es << 4) + + task->t.regs.edi); ++ ++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) ++ pax_open_kernel(); ++ memcpy(par->pmi_code, par->pmi_base, (u16)task->t.regs.ecx); ++ pax_close_kernel(); ++ ++ par->pmi_start = ktva_ktla(par->pmi_code + par->pmi_base[1]); ++ par->pmi_pal = ktva_ktla(par->pmi_code + par->pmi_base[2]); ++#else + par->pmi_start = (u8 *)par->pmi_base + par->pmi_base[1]; + par->pmi_pal = (u8 *)par->pmi_base + par->pmi_base[2]; ++#endif ++ + printk(KERN_INFO "uvesafb: protected mode interface info at " + "%04x:%04x\n", + (u16)task->t.regs.es, (u16)task->t.regs.edi); +@@ -816,13 +839,14 @@ static int __devinit uvesafb_vbe_init(struct fb_info *info) + par->ypan = ypan; + + if (par->pmi_setpal || par->ypan) { ++#if !defined(CONFIG_MODULES) || !defined(CONFIG_PAX_KERNEXEC) + if (__supported_pte_mask & _PAGE_NX) { + par->pmi_setpal = par->ypan = 0; + printk(KERN_WARNING "uvesafb: NX protection is actively." + "We have better not to use the PMI.\n"); +- } else { ++ } else ++#endif + uvesafb_vbe_getpmi(task, par); +- } + } + #else + /* The protected mode interface is not available on non-x86. */ +@@ -1836,6 +1860,11 @@ out: + if (par->vbe_modes) + kfree(par->vbe_modes); + ++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) ++ if (par->pmi_code) ++ module_free_exec(NULL, par->pmi_code); ++#endif ++ + framebuffer_release(info); + return err; + } +@@ -1862,6 +1891,12 @@ static int uvesafb_remove(struct platform_device *dev) + kfree(par->vbe_state_orig); + if (par->vbe_state_saved) + kfree(par->vbe_state_saved); ++ ++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) ++ if (par->pmi_code) ++ module_free_exec(NULL, par->pmi_code); ++#endif ++ + } + + framebuffer_release(info); +diff --git a/drivers/video/vesafb.c b/drivers/video/vesafb.c +index 501b340..86bd4cf 100644 +--- a/drivers/video/vesafb.c ++++ b/drivers/video/vesafb.c +@@ -9,6 +9,7 @@ + */ + + #include <linux/module.h> ++#include <linux/moduleloader.h> + #include <linux/kernel.h> + #include <linux/errno.h> + #include <linux/string.h> +@@ -52,8 +53,8 @@ static int vram_remap __initdata; /* Set amount of memory to be used */ + static int vram_total __initdata; /* Set total amount of memory */ + static int pmi_setpal __read_mostly = 1; /* pmi for palette changes ??? */ + static int ypan __read_mostly; /* 0..nothing, 1..ypan, 2..ywrap */ +-static void (*pmi_start)(void) __read_mostly; +-static void (*pmi_pal) (void) __read_mostly; ++static void (*pmi_start)(void) __read_only; ++static void (*pmi_pal) (void) __read_only; + static int depth __read_mostly; + static int vga_compat __read_mostly; + /* --------------------------------------------------------------------- */ +@@ -233,6 +234,7 @@ static int __init vesafb_probe(struct platform_device *dev) + unsigned int size_vmode; + unsigned int size_remap; + unsigned int size_total; ++ void *pmi_code = NULL; + + if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB) + return -ENODEV; +@@ -275,10 +277,6 @@ static int __init vesafb_probe(struct platform_device *dev) + size_remap = size_total; + vesafb_fix.smem_len = size_remap; + +-#ifndef __i386__ +- screen_info.vesapm_seg = 0; +-#endif +- + if (!request_mem_region(vesafb_fix.smem_start, size_total, "vesafb")) { + printk(KERN_WARNING + "vesafb: cannot reserve video memory at 0x%lx\n", +@@ -307,9 +305,21 @@ static int __init vesafb_probe(struct platform_device *dev) + printk(KERN_INFO "vesafb: mode is %dx%dx%d, linelength=%d, pages=%d\n", + vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel, vesafb_fix.line_length, screen_info.pages); + ++#ifdef __i386__ ++ ++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) ++ pmi_code = module_alloc_exec(screen_info.vesapm_size); ++ if (!pmi_code) ++#elif !defined(CONFIG_PAX_KERNEXEC) ++ if (0) ++#endif ++ ++#endif ++ screen_info.vesapm_seg = 0; ++ + if (screen_info.vesapm_seg) { +- printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x\n", +- screen_info.vesapm_seg,screen_info.vesapm_off); ++ printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x %04x bytes\n", ++ screen_info.vesapm_seg,screen_info.vesapm_off,screen_info.vesapm_size); + } + + if (screen_info.vesapm_seg < 0xc000) +@@ -317,9 +327,25 @@ static int __init vesafb_probe(struct platform_device *dev) + + if (ypan || pmi_setpal) { + unsigned short *pmi_base; ++ + pmi_base = (unsigned short*)phys_to_virt(((unsigned long)screen_info.vesapm_seg << 4) + screen_info.vesapm_off); +- pmi_start = (void*)((char*)pmi_base + pmi_base[1]); +- pmi_pal = (void*)((char*)pmi_base + pmi_base[2]); ++ ++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) ++ pax_open_kernel(); ++ memcpy(pmi_code, pmi_base, screen_info.vesapm_size); ++#else ++ pmi_code = pmi_base; ++#endif ++ ++ pmi_start = (void*)((char*)pmi_code + pmi_base[1]); ++ pmi_pal = (void*)((char*)pmi_code + pmi_base[2]); ++ ++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) ++ pmi_start = ktva_ktla(pmi_start); ++ pmi_pal = ktva_ktla(pmi_pal); ++ pax_close_kernel(); ++#endif ++ + printk(KERN_INFO "vesafb: pmi: set display start = %p, set palette = %p\n",pmi_start,pmi_pal); + if (pmi_base[3]) { + printk(KERN_INFO "vesafb: pmi: ports = "); +@@ -488,6 +514,11 @@ static int __init vesafb_probe(struct platform_device *dev) + info->node, info->fix.id); + return 0; + err: ++ ++#if defined(__i386__) && defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) ++ module_free_exec(NULL, pmi_code); ++#endif ++ + if (info->screen_base) + iounmap(info->screen_base); + framebuffer_release(info); +diff --git a/drivers/video/via/via_clock.h b/drivers/video/via/via_clock.h +index 88714ae..16c2e11 100644 +--- a/drivers/video/via/via_clock.h ++++ b/drivers/video/via/via_clock.h +@@ -56,7 +56,7 @@ struct via_clock { + + void (*set_engine_pll_state)(u8 state); + void (*set_engine_pll)(struct via_pll_config config); +-}; ++} __no_const; + + + static inline u32 get_pll_internal_frequency(u32 ref_freq, +diff --git a/drivers/xen/xen-pciback/conf_space.h b/drivers/xen/xen-pciback/conf_space.h +index e56c934..fc22f4b 100644 +--- a/drivers/xen/xen-pciback/conf_space.h ++++ b/drivers/xen/xen-pciback/conf_space.h +@@ -44,15 +44,15 @@ struct config_field { + struct { + conf_dword_write write; + conf_dword_read read; +- } dw; ++ } __no_const dw; + struct { + conf_word_write write; + conf_word_read read; +- } w; ++ } __no_const w; + struct { + conf_byte_write write; + conf_byte_read read; +- } b; ++ } __no_const b; + } u; + struct list_head list; + }; +diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c +index 014c8dd..6f3dfe6 100644 +--- a/fs/9p/vfs_inode.c ++++ b/fs/9p/vfs_inode.c +@@ -1303,7 +1303,7 @@ static void *v9fs_vfs_follow_link(struct dentry *dentry, struct nameidata *nd) + void + v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p) + { +- char *s = nd_get_link(nd); ++ const char *s = nd_get_link(nd); + + p9_debug(P9_DEBUG_VFS, " %s %s\n", + dentry->d_name.name, IS_ERR(s) ? "<error>" : s); +diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt +index e95d1b6..3454244 100644 +--- a/fs/Kconfig.binfmt ++++ b/fs/Kconfig.binfmt +@@ -89,7 +89,7 @@ config HAVE_AOUT + + config BINFMT_AOUT + tristate "Kernel support for a.out and ECOFF binaries" +- depends on HAVE_AOUT ++ depends on HAVE_AOUT && BROKEN + ---help--- + A.out (Assembler.OUTput) is a set of formats for libraries and + executables used in the earliest versions of UNIX. Linux used +diff --git a/fs/aio.c b/fs/aio.c +index e7f2fad..15ad8a4 100644 +--- a/fs/aio.c ++++ b/fs/aio.c +@@ -118,7 +118,7 @@ static int aio_setup_ring(struct kioctx *ctx) + size += sizeof(struct io_event) * nr_events; + nr_pages = (size + PAGE_SIZE-1) >> PAGE_SHIFT; + +- if (nr_pages < 0) ++ if (nr_pages <= 0) + return -EINVAL; + + nr_events = (PAGE_SIZE * nr_pages - sizeof(struct aio_ring)) / sizeof(struct io_event); +@@ -1440,18 +1440,19 @@ static ssize_t aio_fsync(struct kiocb *iocb) + static ssize_t aio_setup_vectored_rw(int type, struct kiocb *kiocb, bool compat) + { + ssize_t ret; ++ struct iovec iovstack; + + #ifdef CONFIG_COMPAT + if (compat) + ret = compat_rw_copy_check_uvector(type, + (struct compat_iovec __user *)kiocb->ki_buf, +- kiocb->ki_nbytes, 1, &kiocb->ki_inline_vec, ++ kiocb->ki_nbytes, 1, &iovstack, + &kiocb->ki_iovec, 1); + else + #endif + ret = rw_copy_check_uvector(type, + (struct iovec __user *)kiocb->ki_buf, +- kiocb->ki_nbytes, 1, &kiocb->ki_inline_vec, ++ kiocb->ki_nbytes, 1, &iovstack, + &kiocb->ki_iovec, 1); + if (ret < 0) + goto out; +@@ -1460,6 +1461,10 @@ static ssize_t aio_setup_vectored_rw(int type, struct kiocb *kiocb, bool compat) + if (ret < 0) + goto out; + ++ if (kiocb->ki_iovec == &iovstack) { ++ kiocb->ki_inline_vec = iovstack; ++ kiocb->ki_iovec = &kiocb->ki_inline_vec; ++ } + kiocb->ki_nr_segs = kiocb->ki_nbytes; + kiocb->ki_cur_seg = 0; + /* ki_nbytes/left now reflect bytes instead of segs */ +diff --git a/fs/attr.c b/fs/attr.c +index d94d1b6..f9bccd6 100644 +--- a/fs/attr.c ++++ b/fs/attr.c +@@ -99,6 +99,7 @@ int inode_newsize_ok(const struct inode *inode, loff_t offset) + unsigned long limit; + + limit = rlimit(RLIMIT_FSIZE); ++ gr_learn_resource(current, RLIMIT_FSIZE, (unsigned long)offset, 1); + if (limit != RLIM_INFINITY && offset > limit) + goto out_sig; + if (offset > inode->i_sb->s_maxbytes) +diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c +index da8876d..9f3e6d8 100644 +--- a/fs/autofs4/waitq.c ++++ b/fs/autofs4/waitq.c +@@ -61,7 +61,7 @@ static int autofs4_write(struct autofs_sb_info *sbi, + { + unsigned long sigpipe, flags; + mm_segment_t fs; +- const char *data = (const char *)addr; ++ const char __user *data = (const char __force_user *)addr; + ssize_t wr = 0; + + sigpipe = sigismember(&current->pending.signal, SIGPIPE); +diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c +index e18da23..affc30e 100644 +--- a/fs/befs/linuxvfs.c ++++ b/fs/befs/linuxvfs.c +@@ -502,7 +502,7 @@ static void befs_put_link(struct dentry *dentry, struct nameidata *nd, void *p) + { + befs_inode_info *befs_ino = BEFS_I(dentry->d_inode); + if (befs_ino->i_flags & BEFS_LONG_SYMLINK) { +- char *link = nd_get_link(nd); ++ const char *link = nd_get_link(nd); + if (!IS_ERR(link)) + kfree(link); + } +diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c +index d146e18..12d1bd1 100644 +--- a/fs/binfmt_aout.c ++++ b/fs/binfmt_aout.c +@@ -16,6 +16,7 @@ + #include <linux/string.h> + #include <linux/fs.h> + #include <linux/file.h> ++#include <linux/security.h> + #include <linux/stat.h> + #include <linux/fcntl.h> + #include <linux/ptrace.h> +@@ -83,6 +84,8 @@ static int aout_core_dump(struct coredump_params *cprm) + #endif + # define START_STACK(u) ((void __user *)u.start_stack) + ++ memset(&dump, 0, sizeof(dump)); ++ + fs = get_fs(); + set_fs(KERNEL_DS); + has_dumped = 1; +@@ -94,10 +97,12 @@ static int aout_core_dump(struct coredump_params *cprm) + + /* If the size of the dump file exceeds the rlimit, then see what would happen + if we wrote the stack, but not the data area. */ ++ gr_learn_resource(current, RLIMIT_CORE, (dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE, 1); + if ((dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE > cprm->limit) + dump.u_dsize = 0; + + /* Make sure we have enough room to write the stack and data areas. */ ++ gr_learn_resource(current, RLIMIT_CORE, (dump.u_ssize + 1) * PAGE_SIZE, 1); + if ((dump.u_ssize + 1) * PAGE_SIZE > cprm->limit) + dump.u_ssize = 0; + +@@ -231,6 +236,8 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs) + rlim = rlimit(RLIMIT_DATA); + if (rlim >= RLIM_INFINITY) + rlim = ~0; ++ ++ gr_learn_resource(current, RLIMIT_DATA, ex.a_data + ex.a_bss, 1); + if (ex.a_data + ex.a_bss > rlim) + return -ENOMEM; + +@@ -265,6 +272,27 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs) + + install_exec_creds(bprm); + ++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR) ++ current->mm->pax_flags = 0UL; ++#endif ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++ if (!(N_FLAGS(ex) & F_PAX_PAGEEXEC)) { ++ current->mm->pax_flags |= MF_PAX_PAGEEXEC; ++ ++#ifdef CONFIG_PAX_EMUTRAMP ++ if (N_FLAGS(ex) & F_PAX_EMUTRAMP) ++ current->mm->pax_flags |= MF_PAX_EMUTRAMP; ++#endif ++ ++#ifdef CONFIG_PAX_MPROTECT ++ if (!(N_FLAGS(ex) & F_PAX_MPROTECT)) ++ current->mm->pax_flags |= MF_PAX_MPROTECT; ++#endif ++ ++ } ++#endif ++ + if (N_MAGIC(ex) == OMAGIC) { + unsigned long text_addr, map_size; + loff_t pos; +@@ -330,7 +358,7 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs) + } + + error = vm_mmap(bprm->file, N_DATADDR(ex), ex.a_data, +- PROT_READ | PROT_WRITE | PROT_EXEC, ++ PROT_READ | PROT_WRITE, + MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE, + fd_offset + ex.a_text); + if (error != N_DATADDR(ex)) { +diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c +index 16f7354..7cc1e24 100644 +--- a/fs/binfmt_elf.c ++++ b/fs/binfmt_elf.c +@@ -32,6 +32,7 @@ + #include <linux/elf.h> + #include <linux/utsname.h> + #include <linux/coredump.h> ++#include <linux/xattr.h> + #include <asm/uaccess.h> + #include <asm/param.h> + #include <asm/page.h> +@@ -52,6 +53,10 @@ static int elf_core_dump(struct coredump_params *cprm); + #define elf_core_dump NULL + #endif + ++#ifdef CONFIG_PAX_MPROTECT ++static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags); ++#endif ++ + #if ELF_EXEC_PAGESIZE > PAGE_SIZE + #define ELF_MIN_ALIGN ELF_EXEC_PAGESIZE + #else +@@ -71,6 +76,11 @@ static struct linux_binfmt elf_format = { + .load_binary = load_elf_binary, + .load_shlib = load_elf_library, + .core_dump = elf_core_dump, ++ ++#ifdef CONFIG_PAX_MPROTECT ++ .handle_mprotect= elf_handle_mprotect, ++#endif ++ + .min_coredump = ELF_EXEC_PAGESIZE, + }; + +@@ -78,6 +88,8 @@ static struct linux_binfmt elf_format = { + + static int set_brk(unsigned long start, unsigned long end) + { ++ unsigned long e = end; ++ + start = ELF_PAGEALIGN(start); + end = ELF_PAGEALIGN(end); + if (end > start) { +@@ -86,7 +98,7 @@ static int set_brk(unsigned long start, unsigned long end) + if (BAD_ADDR(addr)) + return addr; + } +- current->mm->start_brk = current->mm->brk = end; ++ current->mm->start_brk = current->mm->brk = e; + return 0; + } + +@@ -147,12 +159,13 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec, + elf_addr_t __user *u_rand_bytes; + const char *k_platform = ELF_PLATFORM; + const char *k_base_platform = ELF_BASE_PLATFORM; +- unsigned char k_rand_bytes[16]; ++ u32 k_rand_bytes[4]; + int items; + elf_addr_t *elf_info; + int ei_index = 0; + const struct cred *cred = current_cred(); + struct vm_area_struct *vma; ++ unsigned long saved_auxv[AT_VECTOR_SIZE]; + + /* + * In some cases (e.g. Hyper-Threading), we want to avoid L1 +@@ -194,8 +207,12 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec, + * Generate 16 random bytes for userspace PRNG seeding. + */ + get_random_bytes(k_rand_bytes, sizeof(k_rand_bytes)); +- u_rand_bytes = (elf_addr_t __user *) +- STACK_ALLOC(p, sizeof(k_rand_bytes)); ++ srandom32(k_rand_bytes[0] ^ random32()); ++ srandom32(k_rand_bytes[1] ^ random32()); ++ srandom32(k_rand_bytes[2] ^ random32()); ++ srandom32(k_rand_bytes[3] ^ random32()); ++ p = STACK_ROUND(p, sizeof(k_rand_bytes)); ++ u_rand_bytes = (elf_addr_t __user *) p; + if (__copy_to_user(u_rand_bytes, k_rand_bytes, sizeof(k_rand_bytes))) + return -EFAULT; + +@@ -307,9 +324,11 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec, + return -EFAULT; + current->mm->env_end = p; + ++ memcpy(saved_auxv, elf_info, ei_index * sizeof(elf_addr_t)); ++ + /* Put the elf_info on the stack in the right place. */ + sp = (elf_addr_t __user *)envp + 1; +- if (copy_to_user(sp, elf_info, ei_index * sizeof(elf_addr_t))) ++ if (copy_to_user(sp, saved_auxv, ei_index * sizeof(elf_addr_t))) + return -EFAULT; + return 0; + } +@@ -380,10 +399,10 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex, + { + struct elf_phdr *elf_phdata; + struct elf_phdr *eppnt; +- unsigned long load_addr = 0; ++ unsigned long load_addr = 0, pax_task_size = TASK_SIZE; + int load_addr_set = 0; + unsigned long last_bss = 0, elf_bss = 0; +- unsigned long error = ~0UL; ++ unsigned long error = -EINVAL; + unsigned long total_size; + int retval, i, size; + +@@ -429,6 +448,11 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex, + goto out_close; + } + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) ++ pax_task_size = SEGMEXEC_TASK_SIZE; ++#endif ++ + eppnt = elf_phdata; + for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) { + if (eppnt->p_type == PT_LOAD) { +@@ -472,8 +496,8 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex, + k = load_addr + eppnt->p_vaddr; + if (BAD_ADDR(k) || + eppnt->p_filesz > eppnt->p_memsz || +- eppnt->p_memsz > TASK_SIZE || +- TASK_SIZE - eppnt->p_memsz < k) { ++ eppnt->p_memsz > pax_task_size || ++ pax_task_size - eppnt->p_memsz < k) { + error = -ENOMEM; + goto out_close; + } +@@ -525,6 +549,311 @@ out: + return error; + } + ++#ifdef CONFIG_PAX_PT_PAX_FLAGS ++#ifdef CONFIG_PAX_SOFTMODE ++static unsigned long pax_parse_pt_pax_softmode(const struct elf_phdr * const elf_phdata) ++{ ++ unsigned long pax_flags = 0UL; ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++ if (elf_phdata->p_flags & PF_PAGEEXEC) ++ pax_flags |= MF_PAX_PAGEEXEC; ++#endif ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (elf_phdata->p_flags & PF_SEGMEXEC) ++ pax_flags |= MF_PAX_SEGMEXEC; ++#endif ++ ++#ifdef CONFIG_PAX_EMUTRAMP ++ if (elf_phdata->p_flags & PF_EMUTRAMP) ++ pax_flags |= MF_PAX_EMUTRAMP; ++#endif ++ ++#ifdef CONFIG_PAX_MPROTECT ++ if (elf_phdata->p_flags & PF_MPROTECT) ++ pax_flags |= MF_PAX_MPROTECT; ++#endif ++ ++#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK) ++ if (randomize_va_space && (elf_phdata->p_flags & PF_RANDMMAP)) ++ pax_flags |= MF_PAX_RANDMMAP; ++#endif ++ ++ return pax_flags; ++} ++#endif ++ ++static unsigned long pax_parse_pt_pax_hardmode(const struct elf_phdr * const elf_phdata) ++{ ++ unsigned long pax_flags = 0UL; ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++ if (!(elf_phdata->p_flags & PF_NOPAGEEXEC)) ++ pax_flags |= MF_PAX_PAGEEXEC; ++#endif ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (!(elf_phdata->p_flags & PF_NOSEGMEXEC)) ++ pax_flags |= MF_PAX_SEGMEXEC; ++#endif ++ ++#ifdef CONFIG_PAX_EMUTRAMP ++ if (!(elf_phdata->p_flags & PF_NOEMUTRAMP)) ++ pax_flags |= MF_PAX_EMUTRAMP; ++#endif ++ ++#ifdef CONFIG_PAX_MPROTECT ++ if (!(elf_phdata->p_flags & PF_NOMPROTECT)) ++ pax_flags |= MF_PAX_MPROTECT; ++#endif ++ ++#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK) ++ if (randomize_va_space && !(elf_phdata->p_flags & PF_NORANDMMAP)) ++ pax_flags |= MF_PAX_RANDMMAP; ++#endif ++ ++ return pax_flags; ++} ++#endif ++ ++#ifdef CONFIG_PAX_XATTR_PAX_FLAGS ++#ifdef CONFIG_PAX_SOFTMODE ++static unsigned long pax_parse_xattr_pax_softmode(unsigned long pax_flags_softmode) ++{ ++ unsigned long pax_flags = 0UL; ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++ if (pax_flags_softmode & MF_PAX_PAGEEXEC) ++ pax_flags |= MF_PAX_PAGEEXEC; ++#endif ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (pax_flags_softmode & MF_PAX_SEGMEXEC) ++ pax_flags |= MF_PAX_SEGMEXEC; ++#endif ++ ++#ifdef CONFIG_PAX_EMUTRAMP ++ if (pax_flags_softmode & MF_PAX_EMUTRAMP) ++ pax_flags |= MF_PAX_EMUTRAMP; ++#endif ++ ++#ifdef CONFIG_PAX_MPROTECT ++ if (pax_flags_softmode & MF_PAX_MPROTECT) ++ pax_flags |= MF_PAX_MPROTECT; ++#endif ++ ++#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK) ++ if (randomize_va_space && (pax_flags_softmode & MF_PAX_RANDMMAP)) ++ pax_flags |= MF_PAX_RANDMMAP; ++#endif ++ ++ return pax_flags; ++} ++#endif ++ ++static unsigned long pax_parse_xattr_pax_hardmode(unsigned long pax_flags_hardmode) ++{ ++ unsigned long pax_flags = 0UL; ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++ if (!(pax_flags_hardmode & MF_PAX_PAGEEXEC)) ++ pax_flags |= MF_PAX_PAGEEXEC; ++#endif ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (!(pax_flags_hardmode & MF_PAX_SEGMEXEC)) ++ pax_flags |= MF_PAX_SEGMEXEC; ++#endif ++ ++#ifdef CONFIG_PAX_EMUTRAMP ++ if (!(pax_flags_hardmode & MF_PAX_EMUTRAMP)) ++ pax_flags |= MF_PAX_EMUTRAMP; ++#endif ++ ++#ifdef CONFIG_PAX_MPROTECT ++ if (!(pax_flags_hardmode & MF_PAX_MPROTECT)) ++ pax_flags |= MF_PAX_MPROTECT; ++#endif ++ ++#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK) ++ if (randomize_va_space && !(pax_flags_hardmode & MF_PAX_RANDMMAP)) ++ pax_flags |= MF_PAX_RANDMMAP; ++#endif ++ ++ return pax_flags; ++} ++#endif ++ ++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR) ++static unsigned long pax_parse_ei_pax(const struct elfhdr * const elf_ex) ++{ ++ unsigned long pax_flags = 0UL; ++ ++#ifdef CONFIG_PAX_EI_PAX ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++ if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_PAGEEXEC)) ++ pax_flags |= MF_PAX_PAGEEXEC; ++#endif ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_SEGMEXEC)) ++ pax_flags |= MF_PAX_SEGMEXEC; ++#endif ++ ++#ifdef CONFIG_PAX_EMUTRAMP ++ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && (elf_ex->e_ident[EI_PAX] & EF_PAX_EMUTRAMP)) ++ pax_flags |= MF_PAX_EMUTRAMP; ++#endif ++ ++#ifdef CONFIG_PAX_MPROTECT ++ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && !(elf_ex->e_ident[EI_PAX] & EF_PAX_MPROTECT)) ++ pax_flags |= MF_PAX_MPROTECT; ++#endif ++ ++#ifdef CONFIG_PAX_ASLR ++ if (randomize_va_space && !(elf_ex->e_ident[EI_PAX] & EF_PAX_RANDMMAP)) ++ pax_flags |= MF_PAX_RANDMMAP; ++#endif ++ ++#else ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++ pax_flags |= MF_PAX_PAGEEXEC; ++#endif ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ pax_flags |= MF_PAX_SEGMEXEC; ++#endif ++ ++#ifdef CONFIG_PAX_MPROTECT ++ pax_flags |= MF_PAX_MPROTECT; ++#endif ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (randomize_va_space) ++ pax_flags |= MF_PAX_RANDMMAP; ++#endif ++ ++#endif ++ ++ return pax_flags; ++} ++ ++static unsigned long pax_parse_pt_pax(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata) ++{ ++ ++#ifdef CONFIG_PAX_PT_PAX_FLAGS ++ unsigned long i; ++ ++ for (i = 0UL; i < elf_ex->e_phnum; i++) ++ if (elf_phdata[i].p_type == PT_PAX_FLAGS) { ++ if (((elf_phdata[i].p_flags & PF_PAGEEXEC) && (elf_phdata[i].p_flags & PF_NOPAGEEXEC)) || ++ ((elf_phdata[i].p_flags & PF_SEGMEXEC) && (elf_phdata[i].p_flags & PF_NOSEGMEXEC)) || ++ ((elf_phdata[i].p_flags & PF_EMUTRAMP) && (elf_phdata[i].p_flags & PF_NOEMUTRAMP)) || ++ ((elf_phdata[i].p_flags & PF_MPROTECT) && (elf_phdata[i].p_flags & PF_NOMPROTECT)) || ++ ((elf_phdata[i].p_flags & PF_RANDMMAP) && (elf_phdata[i].p_flags & PF_NORANDMMAP))) ++ return ~0UL; ++ ++#ifdef CONFIG_PAX_SOFTMODE ++ if (pax_softmode) ++ return pax_parse_pt_pax_softmode(&elf_phdata[i]); ++ else ++#endif ++ ++ return pax_parse_pt_pax_hardmode(&elf_phdata[i]); ++ break; ++ } ++#endif ++ ++ return ~0UL; ++} ++ ++static unsigned long pax_parse_xattr_pax(struct file * const file) ++{ ++ ++#ifdef CONFIG_PAX_XATTR_PAX_FLAGS ++ ssize_t xattr_size, i; ++ unsigned char xattr_value[5]; ++ unsigned long pax_flags_hardmode = 0UL, pax_flags_softmode = 0UL; ++ ++ xattr_size = vfs_getxattr(file->f_path.dentry, XATTR_NAME_PAX_FLAGS, xattr_value, sizeof xattr_value); ++ if (xattr_size <= 0) ++ return ~0UL; ++ ++ for (i = 0; i < xattr_size; i++) ++ switch (xattr_value[i]) { ++ default: ++ return ~0UL; ++ ++#define parse_flag(option1, option2, flag) \ ++ case option1: \ ++ pax_flags_hardmode |= MF_PAX_##flag; \ ++ break; \ ++ case option2: \ ++ pax_flags_softmode |= MF_PAX_##flag; \ ++ break; ++ ++ parse_flag('p', 'P', PAGEEXEC); ++ parse_flag('e', 'E', EMUTRAMP); ++ parse_flag('m', 'M', MPROTECT); ++ parse_flag('r', 'R', RANDMMAP); ++ parse_flag('s', 'S', SEGMEXEC); ++ ++#undef parse_flag ++ } ++ ++ if (pax_flags_hardmode & pax_flags_softmode) ++ return ~0UL; ++ ++#ifdef CONFIG_PAX_SOFTMODE ++ if (pax_softmode) ++ return pax_parse_xattr_pax_softmode(pax_flags_softmode); ++ else ++#endif ++ ++ return pax_parse_xattr_pax_hardmode(pax_flags_hardmode); ++#else ++ return ~0UL; ++#endif ++ ++} ++ ++static long pax_parse_pax_flags(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata, struct file * const file) ++{ ++ unsigned long pax_flags, pt_pax_flags, xattr_pax_flags; ++ ++ pax_flags = pax_parse_ei_pax(elf_ex); ++ pt_pax_flags = pax_parse_pt_pax(elf_ex, elf_phdata); ++ xattr_pax_flags = pax_parse_xattr_pax(file); ++ ++ if (pt_pax_flags == ~0UL) ++ pt_pax_flags = xattr_pax_flags; ++ else if (xattr_pax_flags == ~0UL) ++ xattr_pax_flags = pt_pax_flags; ++ if (pt_pax_flags != xattr_pax_flags) ++ return -EINVAL; ++ if (pt_pax_flags != ~0UL) ++ pax_flags = pt_pax_flags; ++ ++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC) ++ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { ++ if ((__supported_pte_mask & _PAGE_NX)) ++ pax_flags &= ~MF_PAX_SEGMEXEC; ++ else ++ pax_flags &= ~MF_PAX_PAGEEXEC; ++ } ++#endif ++ ++ if (0 > pax_check_flags(&pax_flags)) ++ return -EINVAL; ++ ++ current->mm->pax_flags = pax_flags; ++ return 0; ++} ++#endif ++ + /* + * These are the functions used to load ELF style executables and shared + * libraries. There is no binary dependent code anywhere else. +@@ -541,6 +870,11 @@ static unsigned long randomize_stack_top(unsigned long stack_top) + { + unsigned int random_variable = 0; + ++#ifdef CONFIG_PAX_RANDUSTACK ++ if (randomize_va_space) ++ return stack_top - current->mm->delta_stack; ++#endif ++ + if ((current->flags & PF_RANDOMIZE) && + !(current->personality & ADDR_NO_RANDOMIZE)) { + random_variable = get_random_int() & STACK_RND_MASK; +@@ -559,7 +893,7 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) + unsigned long load_addr = 0, load_bias = 0; + int load_addr_set = 0; + char * elf_interpreter = NULL; +- unsigned long error; ++ unsigned long error = 0; + struct elf_phdr *elf_ppnt, *elf_phdata; + unsigned long elf_bss, elf_brk; + int retval, i; +@@ -569,11 +903,11 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) + unsigned long start_code, end_code, start_data, end_data; + unsigned long reloc_func_desc __maybe_unused = 0; + int executable_stack = EXSTACK_DEFAULT; +- unsigned long def_flags = 0; + struct { + struct elfhdr elf_ex; + struct elfhdr interp_elf_ex; + } *loc; ++ unsigned long pax_task_size = TASK_SIZE; + + loc = kmalloc(sizeof(*loc), GFP_KERNEL); + if (!loc) { +@@ -709,11 +1043,81 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) + goto out_free_dentry; + + /* OK, This is the point of no return */ +- current->mm->def_flags = def_flags; ++ ++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR) ++ current->mm->pax_flags = 0UL; ++#endif ++ ++#ifdef CONFIG_PAX_DLRESOLVE ++ current->mm->call_dl_resolve = 0UL; ++#endif ++ ++#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT) ++ current->mm->call_syscall = 0UL; ++#endif ++ ++#ifdef CONFIG_PAX_ASLR ++ current->mm->delta_mmap = 0UL; ++ current->mm->delta_stack = 0UL; ++#endif ++ ++ current->mm->def_flags = 0; ++ ++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR) ++ if (0 > pax_parse_pax_flags(&loc->elf_ex, elf_phdata, bprm->file)) { ++ send_sig(SIGKILL, current, 0); ++ goto out_free_dentry; ++ } ++#endif ++ ++#ifdef CONFIG_PAX_HAVE_ACL_FLAGS ++ pax_set_initial_flags(bprm); ++#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS) ++ if (pax_set_initial_flags_func) ++ (pax_set_initial_flags_func)(bprm); ++#endif ++ ++#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT ++ if ((current->mm->pax_flags & MF_PAX_PAGEEXEC) && !(__supported_pte_mask & _PAGE_NX)) { ++ current->mm->context.user_cs_limit = PAGE_SIZE; ++ current->mm->def_flags |= VM_PAGEEXEC; ++ } ++#endif ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) { ++ current->mm->context.user_cs_base = SEGMEXEC_TASK_SIZE; ++ current->mm->context.user_cs_limit = TASK_SIZE-SEGMEXEC_TASK_SIZE; ++ pax_task_size = SEGMEXEC_TASK_SIZE; ++ current->mm->def_flags |= VM_NOHUGEPAGE; ++ } ++#endif ++ ++#if defined(CONFIG_ARCH_TRACK_EXEC_LIMIT) || defined(CONFIG_PAX_SEGMEXEC) ++ if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { ++ set_user_cs(current->mm->context.user_cs_base, current->mm->context.user_cs_limit, get_cpu()); ++ put_cpu(); ++ } ++#endif + + /* Do this immediately, since STACK_TOP as used in setup_arg_pages + may depend on the personality. */ + SET_PERSONALITY(loc->elf_ex); ++ ++#ifdef CONFIG_PAX_ASLR ++ if (current->mm->pax_flags & MF_PAX_RANDMMAP) { ++ current->mm->delta_mmap = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN)-1)) << PAGE_SHIFT; ++ current->mm->delta_stack = (pax_get_random_long() & ((1UL << PAX_DELTA_STACK_LEN)-1)) << PAGE_SHIFT; ++ } ++#endif ++ ++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) ++ if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { ++ executable_stack = EXSTACK_DISABLE_X; ++ current->personality &= ~READ_IMPLIES_EXEC; ++ } else ++#endif ++ + if (elf_read_implies_exec(loc->elf_ex, executable_stack)) + current->personality |= READ_IMPLIES_EXEC; + +@@ -804,6 +1208,20 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) + #else + load_bias = ELF_PAGESTART(ELF_ET_DYN_BASE - vaddr); + #endif ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ /* PaX: randomize base address at the default exe base if requested */ ++ if ((current->mm->pax_flags & MF_PAX_RANDMMAP) && elf_interpreter) { ++#ifdef CONFIG_SPARC64 ++ load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << (PAGE_SHIFT+1); ++#else ++ load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << PAGE_SHIFT; ++#endif ++ load_bias = ELF_PAGESTART(PAX_ELF_ET_DYN_BASE - vaddr + load_bias); ++ elf_flags |= MAP_FIXED; ++ } ++#endif ++ + } + + error = elf_map(bprm->file, load_bias + vaddr, elf_ppnt, +@@ -836,9 +1254,9 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) + * allowed task size. Note that p_filesz must always be + * <= p_memsz so it is only necessary to check p_memsz. + */ +- if (BAD_ADDR(k) || elf_ppnt->p_filesz > elf_ppnt->p_memsz || +- elf_ppnt->p_memsz > TASK_SIZE || +- TASK_SIZE - elf_ppnt->p_memsz < k) { ++ if (k >= pax_task_size || elf_ppnt->p_filesz > elf_ppnt->p_memsz || ++ elf_ppnt->p_memsz > pax_task_size || ++ pax_task_size - elf_ppnt->p_memsz < k) { + /* set_brk can never work. Avoid overflows. */ + send_sig(SIGKILL, current, 0); + retval = -EINVAL; +@@ -877,11 +1295,40 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) + goto out_free_dentry; + } + if (likely(elf_bss != elf_brk) && unlikely(padzero(elf_bss))) { +- send_sig(SIGSEGV, current, 0); +- retval = -EFAULT; /* Nobody gets to see this, but.. */ +- goto out_free_dentry; ++ /* ++ * This bss-zeroing can fail if the ELF ++ * file specifies odd protections. So ++ * we don't check the return value ++ */ + } + ++#ifdef CONFIG_PAX_RANDMMAP ++ if (current->mm->pax_flags & MF_PAX_RANDMMAP) { ++ unsigned long start, size; ++ ++ start = ELF_PAGEALIGN(elf_brk); ++ size = PAGE_SIZE + ((pax_get_random_long() & ((1UL << 22) - 1UL)) << 4); ++ down_write(&current->mm->mmap_sem); ++ retval = -ENOMEM; ++ if (!find_vma_intersection(current->mm, start, start + size + PAGE_SIZE)) { ++ unsigned long prot = PROT_NONE; ++ ++ current->mm->brk_gap = PAGE_ALIGN(size) >> PAGE_SHIFT; ++// if (current->personality & ADDR_NO_RANDOMIZE) ++// prot = PROT_READ; ++ start = do_mmap(NULL, start, size, prot, MAP_ANONYMOUS | MAP_FIXED | MAP_PRIVATE, 0); ++ retval = IS_ERR_VALUE(start) ? start : 0; ++ } ++ up_write(&current->mm->mmap_sem); ++ if (retval == 0) ++ retval = set_brk(start + size, start + size + PAGE_SIZE); ++ if (retval < 0) { ++ send_sig(SIGKILL, current, 0); ++ goto out_free_dentry; ++ } ++ } ++#endif ++ + if (elf_interpreter) { + unsigned long uninitialized_var(interp_map_addr); + +@@ -1109,7 +1556,7 @@ static bool always_dump_vma(struct vm_area_struct *vma) + * Decide what to dump of a segment, part, all or none. + */ + static unsigned long vma_dump_size(struct vm_area_struct *vma, +- unsigned long mm_flags) ++ unsigned long mm_flags, long signr) + { + #define FILTER(type) (mm_flags & (1UL << MMF_DUMP_##type)) + +@@ -1146,7 +1593,7 @@ static unsigned long vma_dump_size(struct vm_area_struct *vma, + if (vma->vm_file == NULL) + return 0; + +- if (FILTER(MAPPED_PRIVATE)) ++ if (signr == SIGKILL || FILTER(MAPPED_PRIVATE)) + goto whole; + + /* +@@ -1368,9 +1815,9 @@ static void fill_auxv_note(struct memelfnote *note, struct mm_struct *mm) + { + elf_addr_t *auxv = (elf_addr_t *) mm->saved_auxv; + int i = 0; +- do ++ do { + i += 2; +- while (auxv[i - 2] != AT_NULL); ++ } while (auxv[i - 2] != AT_NULL); + fill_note(note, "CORE", NT_AUXV, i * sizeof(elf_addr_t), auxv); + } + +@@ -1892,14 +2339,14 @@ static void fill_extnum_info(struct elfhdr *elf, struct elf_shdr *shdr4extnum, + } + + static size_t elf_core_vma_data_size(struct vm_area_struct *gate_vma, +- unsigned long mm_flags) ++ struct coredump_params *cprm) + { + struct vm_area_struct *vma; + size_t size = 0; + + for (vma = first_vma(current, gate_vma); vma != NULL; + vma = next_vma(vma, gate_vma)) +- size += vma_dump_size(vma, mm_flags); ++ size += vma_dump_size(vma, cprm->mm_flags, cprm->signr); + return size; + } + +@@ -1993,7 +2440,7 @@ static int elf_core_dump(struct coredump_params *cprm) + + dataoff = offset = roundup(offset, ELF_EXEC_PAGESIZE); + +- offset += elf_core_vma_data_size(gate_vma, cprm->mm_flags); ++ offset += elf_core_vma_data_size(gate_vma, cprm); + offset += elf_core_extra_data_size(); + e_shoff = offset; + +@@ -2007,10 +2454,12 @@ static int elf_core_dump(struct coredump_params *cprm) + offset = dataoff; + + size += sizeof(*elf); ++ gr_learn_resource(current, RLIMIT_CORE, size, 1); + if (size > cprm->limit || !dump_write(cprm->file, elf, sizeof(*elf))) + goto end_coredump; + + size += sizeof(*phdr4note); ++ gr_learn_resource(current, RLIMIT_CORE, size, 1); + if (size > cprm->limit + || !dump_write(cprm->file, phdr4note, sizeof(*phdr4note))) + goto end_coredump; +@@ -2024,7 +2473,7 @@ static int elf_core_dump(struct coredump_params *cprm) + phdr.p_offset = offset; + phdr.p_vaddr = vma->vm_start; + phdr.p_paddr = 0; +- phdr.p_filesz = vma_dump_size(vma, cprm->mm_flags); ++ phdr.p_filesz = vma_dump_size(vma, cprm->mm_flags, cprm->signr); + phdr.p_memsz = vma->vm_end - vma->vm_start; + offset += phdr.p_filesz; + phdr.p_flags = vma->vm_flags & VM_READ ? PF_R : 0; +@@ -2035,6 +2484,7 @@ static int elf_core_dump(struct coredump_params *cprm) + phdr.p_align = ELF_EXEC_PAGESIZE; + + size += sizeof(phdr); ++ gr_learn_resource(current, RLIMIT_CORE, size, 1); + if (size > cprm->limit + || !dump_write(cprm->file, &phdr, sizeof(phdr))) + goto end_coredump; +@@ -2059,7 +2509,7 @@ static int elf_core_dump(struct coredump_params *cprm) + unsigned long addr; + unsigned long end; + +- end = vma->vm_start + vma_dump_size(vma, cprm->mm_flags); ++ end = vma->vm_start + vma_dump_size(vma, cprm->mm_flags, cprm->signr); + + for (addr = vma->vm_start; addr < end; addr += PAGE_SIZE) { + struct page *page; +@@ -2068,6 +2518,7 @@ static int elf_core_dump(struct coredump_params *cprm) + page = get_dump_page(addr); + if (page) { + void *kaddr = kmap(page); ++ gr_learn_resource(current, RLIMIT_CORE, size + PAGE_SIZE, 1); + stop = ((size += PAGE_SIZE) > cprm->limit) || + !dump_write(cprm->file, kaddr, + PAGE_SIZE); +@@ -2085,6 +2536,7 @@ static int elf_core_dump(struct coredump_params *cprm) + + if (e_phnum == PN_XNUM) { + size += sizeof(*shdr4extnum); ++ gr_learn_resource(current, RLIMIT_CORE, size, 1); + if (size > cprm->limit + || !dump_write(cprm->file, shdr4extnum, + sizeof(*shdr4extnum))) +@@ -2105,6 +2557,97 @@ out: + + #endif /* CONFIG_ELF_CORE */ + ++#ifdef CONFIG_PAX_MPROTECT ++/* PaX: non-PIC ELF libraries need relocations on their executable segments ++ * therefore we'll grant them VM_MAYWRITE once during their life. Similarly ++ * we'll remove VM_MAYWRITE for good on RELRO segments. ++ * ++ * The checks favour ld-linux.so behaviour which operates on a per ELF segment ++ * basis because we want to allow the common case and not the special ones. ++ */ ++static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags) ++{ ++ struct elfhdr elf_h; ++ struct elf_phdr elf_p; ++ unsigned long i; ++ unsigned long oldflags; ++ bool is_textrel_rw, is_textrel_rx, is_relro; ++ ++ if (!(vma->vm_mm->pax_flags & MF_PAX_MPROTECT)) ++ return; ++ ++ oldflags = vma->vm_flags & (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ); ++ newflags &= VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ; ++ ++#ifdef CONFIG_PAX_ELFRELOCS ++ /* possible TEXTREL */ ++ is_textrel_rw = vma->vm_file && !vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYREAD | VM_EXEC | VM_READ) && newflags == (VM_WRITE | VM_READ); ++ is_textrel_rx = vma->vm_file && vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_WRITE | VM_READ) && newflags == (VM_EXEC | VM_READ); ++#else ++ is_textrel_rw = false; ++ is_textrel_rx = false; ++#endif ++ ++ /* possible RELRO */ ++ is_relro = vma->vm_file && vma->anon_vma && oldflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ) && newflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ); ++ ++ if (!is_textrel_rw && !is_textrel_rx && !is_relro) ++ return; ++ ++ if (sizeof(elf_h) != kernel_read(vma->vm_file, 0UL, (char *)&elf_h, sizeof(elf_h)) || ++ memcmp(elf_h.e_ident, ELFMAG, SELFMAG) || ++ ++#ifdef CONFIG_PAX_ETEXECRELOCS ++ ((is_textrel_rw || is_textrel_rx) && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) || ++#else ++ ((is_textrel_rw || is_textrel_rx) && elf_h.e_type != ET_DYN) || ++#endif ++ ++ (is_relro && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) || ++ !elf_check_arch(&elf_h) || ++ elf_h.e_phentsize != sizeof(struct elf_phdr) || ++ elf_h.e_phnum > 65536UL / sizeof(struct elf_phdr)) ++ return; ++ ++ for (i = 0UL; i < elf_h.e_phnum; i++) { ++ if (sizeof(elf_p) != kernel_read(vma->vm_file, elf_h.e_phoff + i*sizeof(elf_p), (char *)&elf_p, sizeof(elf_p))) ++ return; ++ switch (elf_p.p_type) { ++ case PT_DYNAMIC: ++ if (!is_textrel_rw && !is_textrel_rx) ++ continue; ++ i = 0UL; ++ while ((i+1) * sizeof(elf_dyn) <= elf_p.p_filesz) { ++ elf_dyn dyn; ++ ++ if (sizeof(dyn) != kernel_read(vma->vm_file, elf_p.p_offset + i*sizeof(dyn), (char *)&dyn, sizeof(dyn))) ++ return; ++ if (dyn.d_tag == DT_NULL) ++ return; ++ if (dyn.d_tag == DT_TEXTREL || (dyn.d_tag == DT_FLAGS && (dyn.d_un.d_val & DF_TEXTREL))) { ++ gr_log_textrel(vma); ++ if (is_textrel_rw) ++ vma->vm_flags |= VM_MAYWRITE; ++ else ++ /* PaX: disallow write access after relocs are done, hopefully noone else needs it... */ ++ vma->vm_flags &= ~VM_MAYWRITE; ++ return; ++ } ++ i++; ++ } ++ return; ++ ++ case PT_GNU_RELRO: ++ if (!is_relro) ++ continue; ++ if ((elf_p.p_offset >> PAGE_SHIFT) == vma->vm_pgoff && ELF_PAGEALIGN(elf_p.p_memsz) == vma->vm_end - vma->vm_start) ++ vma->vm_flags &= ~VM_MAYWRITE; ++ return; ++ } ++ } ++} ++#endif ++ + static int __init init_elf_binfmt(void) + { + register_binfmt(&elf_format); +diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c +index 6b2daf9..a70dccb 100644 +--- a/fs/binfmt_flat.c ++++ b/fs/binfmt_flat.c +@@ -562,7 +562,9 @@ static int load_flat_file(struct linux_binprm * bprm, + realdatastart = (unsigned long) -ENOMEM; + printk("Unable to allocate RAM for process data, errno %d\n", + (int)-realdatastart); ++ down_write(&current->mm->mmap_sem); + do_munmap(current->mm, textpos, text_len); ++ up_write(&current->mm->mmap_sem); + ret = realdatastart; + goto err; + } +@@ -586,8 +588,10 @@ static int load_flat_file(struct linux_binprm * bprm, + } + if (IS_ERR_VALUE(result)) { + printk("Unable to read data+bss, errno %d\n", (int)-result); ++ down_write(&current->mm->mmap_sem); + do_munmap(current->mm, textpos, text_len); + do_munmap(current->mm, realdatastart, len); ++ up_write(&current->mm->mmap_sem); + ret = result; + goto err; + } +@@ -654,8 +658,10 @@ static int load_flat_file(struct linux_binprm * bprm, + } + if (IS_ERR_VALUE(result)) { + printk("Unable to read code+data+bss, errno %d\n",(int)-result); ++ down_write(&current->mm->mmap_sem); + do_munmap(current->mm, textpos, text_len + data_len + extra + + MAX_SHARED_LIBS * sizeof(unsigned long)); ++ up_write(&current->mm->mmap_sem); + ret = result; + goto err; + } +diff --git a/fs/bio.c b/fs/bio.c +index 84da885..bac1d48 100644 +--- a/fs/bio.c ++++ b/fs/bio.c +@@ -838,7 +838,7 @@ struct bio *bio_copy_user_iov(struct request_queue *q, + /* + * Overflow, abort + */ +- if (end < start) ++ if (end < start || end - start > INT_MAX - nr_pages) + return ERR_PTR(-EINVAL); + + nr_pages += end - start; +@@ -972,7 +972,7 @@ static struct bio *__bio_map_user_iov(struct request_queue *q, + /* + * Overflow, abort + */ +- if (end < start) ++ if (end < start || end - start > INT_MAX - nr_pages) + return ERR_PTR(-EINVAL); + + nr_pages += end - start; +@@ -1234,7 +1234,7 @@ static void bio_copy_kern_endio(struct bio *bio, int err) + const int read = bio_data_dir(bio) == READ; + struct bio_map_data *bmd = bio->bi_private; + int i; +- char *p = bmd->sgvecs[0].iov_base; ++ char *p = (char __force_kernel *)bmd->sgvecs[0].iov_base; + + __bio_for_each_segment(bvec, bio, i, 0) { + char *addr = page_address(bvec->bv_page); +diff --git a/fs/block_dev.c b/fs/block_dev.c +index ba11c30..623d736 100644 +--- a/fs/block_dev.c ++++ b/fs/block_dev.c +@@ -704,7 +704,7 @@ static bool bd_may_claim(struct block_device *bdev, struct block_device *whole, + else if (bdev->bd_contains == bdev) + return true; /* is a whole device which isn't held */ + +- else if (whole->bd_holder == bd_may_claim) ++ else if (whole->bd_holder == (void *)bd_may_claim) + return true; /* is a partition of a device that is being partitioned */ + else if (whole->bd_holder != NULL) + return false; /* is a partition of a held device */ +diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c +index c053e90..e5f1afc 100644 +--- a/fs/btrfs/check-integrity.c ++++ b/fs/btrfs/check-integrity.c +@@ -156,7 +156,7 @@ struct btrfsic_block { + union { + bio_end_io_t *bio; + bh_end_io_t *bh; +- } orig_bio_bh_end_io; ++ } __no_const orig_bio_bh_end_io; + int submit_bio_bh_rw; + u64 flush_gen; /* only valid if !never_written */ + }; +diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c +index 4106264..8157ede 100644 +--- a/fs/btrfs/ctree.c ++++ b/fs/btrfs/ctree.c +@@ -513,9 +513,12 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans, + free_extent_buffer(buf); + add_root_to_dirty_list(root); + } else { +- if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID) +- parent_start = parent->start; +- else ++ if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID) { ++ if (parent) ++ parent_start = parent->start; ++ else ++ parent_start = 0; ++ } else + parent_start = 0; + + WARN_ON(trans->transid != btrfs_header_generation(parent)); +diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c +index 0df0d1f..4bdcbfe 100644 +--- a/fs/btrfs/inode.c ++++ b/fs/btrfs/inode.c +@@ -7074,7 +7074,7 @@ fail: + return -ENOMEM; + } + +-static int btrfs_getattr(struct vfsmount *mnt, ++int btrfs_getattr(struct vfsmount *mnt, + struct dentry *dentry, struct kstat *stat) + { + struct inode *inode = dentry->d_inode; +@@ -7088,6 +7088,14 @@ static int btrfs_getattr(struct vfsmount *mnt, + return 0; + } + ++EXPORT_SYMBOL(btrfs_getattr); ++ ++dev_t get_btrfs_dev_from_inode(struct inode *inode) ++{ ++ return BTRFS_I(inode)->root->anon_dev; ++} ++EXPORT_SYMBOL(get_btrfs_dev_from_inode); ++ + /* + * If a file is moved, it will inherit the cow and compression flags of the new + * directory. +diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c +index 14f8e1f..ab8d81f 100644 +--- a/fs/btrfs/ioctl.c ++++ b/fs/btrfs/ioctl.c +@@ -2882,9 +2882,12 @@ long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg) + for (i = 0; i < num_types; i++) { + struct btrfs_space_info *tmp; + ++ /* Don't copy in more than we allocated */ + if (!slot_count) + break; + ++ slot_count--; ++ + info = NULL; + rcu_read_lock(); + list_for_each_entry_rcu(tmp, &root->fs_info->space_info, +@@ -2906,15 +2909,12 @@ long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg) + memcpy(dest, &space, sizeof(space)); + dest++; + space_args.total_spaces++; +- slot_count--; + } +- if (!slot_count) +- break; + } + up_read(&info->groups_sem); + } + +- user_dest = (struct btrfs_ioctl_space_info *) ++ user_dest = (struct btrfs_ioctl_space_info __user *) + (arg + sizeof(struct btrfs_ioctl_space_args)); + + if (copy_to_user(user_dest, dest_orig, alloc_size)) +diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c +index 646ee21..f020f87 100644 +--- a/fs/btrfs/relocation.c ++++ b/fs/btrfs/relocation.c +@@ -1268,7 +1268,7 @@ static int __update_reloc_root(struct btrfs_root *root, int del) + } + spin_unlock(&rc->reloc_root_tree.lock); + +- BUG_ON((struct btrfs_root *)node->data != root); ++ BUG_ON(!node || (struct btrfs_root *)node->data != root); + + if (!del) { + spin_lock(&rc->reloc_root_tree.lock); +diff --git a/fs/cachefiles/bind.c b/fs/cachefiles/bind.c +index 622f469..e8d2d55 100644 +--- a/fs/cachefiles/bind.c ++++ b/fs/cachefiles/bind.c +@@ -39,13 +39,11 @@ int cachefiles_daemon_bind(struct cachefiles_cache *cache, char *args) + args); + + /* start by checking things over */ +- ASSERT(cache->fstop_percent >= 0 && +- cache->fstop_percent < cache->fcull_percent && ++ ASSERT(cache->fstop_percent < cache->fcull_percent && + cache->fcull_percent < cache->frun_percent && + cache->frun_percent < 100); + +- ASSERT(cache->bstop_percent >= 0 && +- cache->bstop_percent < cache->bcull_percent && ++ ASSERT(cache->bstop_percent < cache->bcull_percent && + cache->bcull_percent < cache->brun_percent && + cache->brun_percent < 100); + +diff --git a/fs/cachefiles/daemon.c b/fs/cachefiles/daemon.c +index 0a1467b..6a53245 100644 +--- a/fs/cachefiles/daemon.c ++++ b/fs/cachefiles/daemon.c +@@ -196,7 +196,7 @@ static ssize_t cachefiles_daemon_read(struct file *file, char __user *_buffer, + if (n > buflen) + return -EMSGSIZE; + +- if (copy_to_user(_buffer, buffer, n) != 0) ++ if (n > sizeof(buffer) || copy_to_user(_buffer, buffer, n) != 0) + return -EFAULT; + + return n; +@@ -222,7 +222,7 @@ static ssize_t cachefiles_daemon_write(struct file *file, + if (test_bit(CACHEFILES_DEAD, &cache->flags)) + return -EIO; + +- if (datalen < 0 || datalen > PAGE_SIZE - 1) ++ if (datalen > PAGE_SIZE - 1) + return -EOPNOTSUPP; + + /* drag the command string into the kernel so we can parse it */ +@@ -386,7 +386,7 @@ static int cachefiles_daemon_fstop(struct cachefiles_cache *cache, char *args) + if (args[0] != '%' || args[1] != '\0') + return -EINVAL; + +- if (fstop < 0 || fstop >= cache->fcull_percent) ++ if (fstop >= cache->fcull_percent) + return cachefiles_daemon_range_error(cache, args); + + cache->fstop_percent = fstop; +@@ -458,7 +458,7 @@ static int cachefiles_daemon_bstop(struct cachefiles_cache *cache, char *args) + if (args[0] != '%' || args[1] != '\0') + return -EINVAL; + +- if (bstop < 0 || bstop >= cache->bcull_percent) ++ if (bstop >= cache->bcull_percent) + return cachefiles_daemon_range_error(cache, args); + + cache->bstop_percent = bstop; +diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h +index bd6bc1b..b627b53 100644 +--- a/fs/cachefiles/internal.h ++++ b/fs/cachefiles/internal.h +@@ -57,7 +57,7 @@ struct cachefiles_cache { + wait_queue_head_t daemon_pollwq; /* poll waitqueue for daemon */ + struct rb_root active_nodes; /* active nodes (can't be culled) */ + rwlock_t active_lock; /* lock for active_nodes */ +- atomic_t gravecounter; /* graveyard uniquifier */ ++ atomic_unchecked_t gravecounter; /* graveyard uniquifier */ + unsigned frun_percent; /* when to stop culling (% files) */ + unsigned fcull_percent; /* when to start culling (% files) */ + unsigned fstop_percent; /* when to stop allocating (% files) */ +@@ -169,19 +169,19 @@ extern int cachefiles_check_in_use(struct cachefiles_cache *cache, + * proc.c + */ + #ifdef CONFIG_CACHEFILES_HISTOGRAM +-extern atomic_t cachefiles_lookup_histogram[HZ]; +-extern atomic_t cachefiles_mkdir_histogram[HZ]; +-extern atomic_t cachefiles_create_histogram[HZ]; ++extern atomic_unchecked_t cachefiles_lookup_histogram[HZ]; ++extern atomic_unchecked_t cachefiles_mkdir_histogram[HZ]; ++extern atomic_unchecked_t cachefiles_create_histogram[HZ]; + + extern int __init cachefiles_proc_init(void); + extern void cachefiles_proc_cleanup(void); + static inline +-void cachefiles_hist(atomic_t histogram[], unsigned long start_jif) ++void cachefiles_hist(atomic_unchecked_t histogram[], unsigned long start_jif) + { + unsigned long jif = jiffies - start_jif; + if (jif >= HZ) + jif = HZ - 1; +- atomic_inc(&histogram[jif]); ++ atomic_inc_unchecked(&histogram[jif]); + } + + #else +diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c +index 7f0771d..87d4f36 100644 +--- a/fs/cachefiles/namei.c ++++ b/fs/cachefiles/namei.c +@@ -318,7 +318,7 @@ try_again: + /* first step is to make up a grave dentry in the graveyard */ + sprintf(nbuffer, "%08x%08x", + (uint32_t) get_seconds(), +- (uint32_t) atomic_inc_return(&cache->gravecounter)); ++ (uint32_t) atomic_inc_return_unchecked(&cache->gravecounter)); + + /* do the multiway lock magic */ + trap = lock_rename(cache->graveyard, dir); +diff --git a/fs/cachefiles/proc.c b/fs/cachefiles/proc.c +index eccd339..4c1d995 100644 +--- a/fs/cachefiles/proc.c ++++ b/fs/cachefiles/proc.c +@@ -14,9 +14,9 @@ + #include <linux/seq_file.h> + #include "internal.h" + +-atomic_t cachefiles_lookup_histogram[HZ]; +-atomic_t cachefiles_mkdir_histogram[HZ]; +-atomic_t cachefiles_create_histogram[HZ]; ++atomic_unchecked_t cachefiles_lookup_histogram[HZ]; ++atomic_unchecked_t cachefiles_mkdir_histogram[HZ]; ++atomic_unchecked_t cachefiles_create_histogram[HZ]; + + /* + * display the latency histogram +@@ -35,9 +35,9 @@ static int cachefiles_histogram_show(struct seq_file *m, void *v) + return 0; + default: + index = (unsigned long) v - 3; +- x = atomic_read(&cachefiles_lookup_histogram[index]); +- y = atomic_read(&cachefiles_mkdir_histogram[index]); +- z = atomic_read(&cachefiles_create_histogram[index]); ++ x = atomic_read_unchecked(&cachefiles_lookup_histogram[index]); ++ y = atomic_read_unchecked(&cachefiles_mkdir_histogram[index]); ++ z = atomic_read_unchecked(&cachefiles_create_histogram[index]); + if (x == 0 && y == 0 && z == 0) + return 0; + +diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c +index 0e3c092..818480e 100644 +--- a/fs/cachefiles/rdwr.c ++++ b/fs/cachefiles/rdwr.c +@@ -945,7 +945,7 @@ int cachefiles_write_page(struct fscache_storage *op, struct page *page) + old_fs = get_fs(); + set_fs(KERNEL_DS); + ret = file->f_op->write( +- file, (const void __user *) data, len, &pos); ++ file, (const void __force_user *) data, len, &pos); + set_fs(old_fs); + kunmap(page); + if (ret != len) +diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c +index 3e8094b..cb3ff3d 100644 +--- a/fs/ceph/dir.c ++++ b/fs/ceph/dir.c +@@ -244,7 +244,7 @@ static int ceph_readdir(struct file *filp, void *dirent, filldir_t filldir) + struct ceph_fs_client *fsc = ceph_inode_to_client(inode); + struct ceph_mds_client *mdsc = fsc->mdsc; + unsigned frag = fpos_frag(filp->f_pos); +- int off = fpos_off(filp->f_pos); ++ unsigned int off = fpos_off(filp->f_pos); + int err; + u32 ftype; + struct ceph_mds_reply_info_parsed *rinfo; +@@ -598,7 +598,7 @@ static struct dentry *ceph_lookup(struct inode *dir, struct dentry *dentry, + if (nd && + (nd->flags & LOOKUP_OPEN) && + !(nd->intent.open.flags & O_CREAT)) { +- int mode = nd->intent.open.create_mode & ~current->fs->umask; ++ int mode = nd->intent.open.create_mode & ~current_umask(); + return ceph_lookup_open(dir, dentry, nd, mode, 1); + } + +diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c +index 2704646..c581c91 100644 +--- a/fs/cifs/cifs_debug.c ++++ b/fs/cifs/cifs_debug.c +@@ -265,8 +265,8 @@ static ssize_t cifs_stats_proc_write(struct file *file, + + if (c == '1' || c == 'y' || c == 'Y' || c == '0') { + #ifdef CONFIG_CIFS_STATS2 +- atomic_set(&totBufAllocCount, 0); +- atomic_set(&totSmBufAllocCount, 0); ++ atomic_set_unchecked(&totBufAllocCount, 0); ++ atomic_set_unchecked(&totSmBufAllocCount, 0); + #endif /* CONFIG_CIFS_STATS2 */ + spin_lock(&cifs_tcp_ses_lock); + list_for_each(tmp1, &cifs_tcp_ses_list) { +@@ -279,25 +279,25 @@ static ssize_t cifs_stats_proc_write(struct file *file, + tcon = list_entry(tmp3, + struct cifs_tcon, + tcon_list); +- atomic_set(&tcon->num_smbs_sent, 0); +- atomic_set(&tcon->num_writes, 0); +- atomic_set(&tcon->num_reads, 0); +- atomic_set(&tcon->num_oplock_brks, 0); +- atomic_set(&tcon->num_opens, 0); +- atomic_set(&tcon->num_posixopens, 0); +- atomic_set(&tcon->num_posixmkdirs, 0); +- atomic_set(&tcon->num_closes, 0); +- atomic_set(&tcon->num_deletes, 0); +- atomic_set(&tcon->num_mkdirs, 0); +- atomic_set(&tcon->num_rmdirs, 0); +- atomic_set(&tcon->num_renames, 0); +- atomic_set(&tcon->num_t2renames, 0); +- atomic_set(&tcon->num_ffirst, 0); +- atomic_set(&tcon->num_fnext, 0); +- atomic_set(&tcon->num_fclose, 0); +- atomic_set(&tcon->num_hardlinks, 0); +- atomic_set(&tcon->num_symlinks, 0); +- atomic_set(&tcon->num_locks, 0); ++ atomic_set_unchecked(&tcon->num_smbs_sent, 0); ++ atomic_set_unchecked(&tcon->num_writes, 0); ++ atomic_set_unchecked(&tcon->num_reads, 0); ++ atomic_set_unchecked(&tcon->num_oplock_brks, 0); ++ atomic_set_unchecked(&tcon->num_opens, 0); ++ atomic_set_unchecked(&tcon->num_posixopens, 0); ++ atomic_set_unchecked(&tcon->num_posixmkdirs, 0); ++ atomic_set_unchecked(&tcon->num_closes, 0); ++ atomic_set_unchecked(&tcon->num_deletes, 0); ++ atomic_set_unchecked(&tcon->num_mkdirs, 0); ++ atomic_set_unchecked(&tcon->num_rmdirs, 0); ++ atomic_set_unchecked(&tcon->num_renames, 0); ++ atomic_set_unchecked(&tcon->num_t2renames, 0); ++ atomic_set_unchecked(&tcon->num_ffirst, 0); ++ atomic_set_unchecked(&tcon->num_fnext, 0); ++ atomic_set_unchecked(&tcon->num_fclose, 0); ++ atomic_set_unchecked(&tcon->num_hardlinks, 0); ++ atomic_set_unchecked(&tcon->num_symlinks, 0); ++ atomic_set_unchecked(&tcon->num_locks, 0); + } + } + } +@@ -327,8 +327,8 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v) + smBufAllocCount.counter, cifs_min_small); + #ifdef CONFIG_CIFS_STATS2 + seq_printf(m, "Total Large %d Small %d Allocations\n", +- atomic_read(&totBufAllocCount), +- atomic_read(&totSmBufAllocCount)); ++ atomic_read_unchecked(&totBufAllocCount), ++ atomic_read_unchecked(&totSmBufAllocCount)); + #endif /* CONFIG_CIFS_STATS2 */ + + seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount)); +@@ -357,41 +357,41 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v) + if (tcon->need_reconnect) + seq_puts(m, "\tDISCONNECTED "); + seq_printf(m, "\nSMBs: %d Oplock Breaks: %d", +- atomic_read(&tcon->num_smbs_sent), +- atomic_read(&tcon->num_oplock_brks)); ++ atomic_read_unchecked(&tcon->num_smbs_sent), ++ atomic_read_unchecked(&tcon->num_oplock_brks)); + seq_printf(m, "\nReads: %d Bytes: %lld", +- atomic_read(&tcon->num_reads), ++ atomic_read_unchecked(&tcon->num_reads), + (long long)(tcon->bytes_read)); + seq_printf(m, "\nWrites: %d Bytes: %lld", +- atomic_read(&tcon->num_writes), ++ atomic_read_unchecked(&tcon->num_writes), + (long long)(tcon->bytes_written)); + seq_printf(m, "\nFlushes: %d", +- atomic_read(&tcon->num_flushes)); ++ atomic_read_unchecked(&tcon->num_flushes)); + seq_printf(m, "\nLocks: %d HardLinks: %d " + "Symlinks: %d", +- atomic_read(&tcon->num_locks), +- atomic_read(&tcon->num_hardlinks), +- atomic_read(&tcon->num_symlinks)); ++ atomic_read_unchecked(&tcon->num_locks), ++ atomic_read_unchecked(&tcon->num_hardlinks), ++ atomic_read_unchecked(&tcon->num_symlinks)); + seq_printf(m, "\nOpens: %d Closes: %d " + "Deletes: %d", +- atomic_read(&tcon->num_opens), +- atomic_read(&tcon->num_closes), +- atomic_read(&tcon->num_deletes)); ++ atomic_read_unchecked(&tcon->num_opens), ++ atomic_read_unchecked(&tcon->num_closes), ++ atomic_read_unchecked(&tcon->num_deletes)); + seq_printf(m, "\nPosix Opens: %d " + "Posix Mkdirs: %d", +- atomic_read(&tcon->num_posixopens), +- atomic_read(&tcon->num_posixmkdirs)); ++ atomic_read_unchecked(&tcon->num_posixopens), ++ atomic_read_unchecked(&tcon->num_posixmkdirs)); + seq_printf(m, "\nMkdirs: %d Rmdirs: %d", +- atomic_read(&tcon->num_mkdirs), +- atomic_read(&tcon->num_rmdirs)); ++ atomic_read_unchecked(&tcon->num_mkdirs), ++ atomic_read_unchecked(&tcon->num_rmdirs)); + seq_printf(m, "\nRenames: %d T2 Renames %d", +- atomic_read(&tcon->num_renames), +- atomic_read(&tcon->num_t2renames)); ++ atomic_read_unchecked(&tcon->num_renames), ++ atomic_read_unchecked(&tcon->num_t2renames)); + seq_printf(m, "\nFindFirst: %d FNext %d " + "FClose %d", +- atomic_read(&tcon->num_ffirst), +- atomic_read(&tcon->num_fnext), +- atomic_read(&tcon->num_fclose)); ++ atomic_read_unchecked(&tcon->num_ffirst), ++ atomic_read_unchecked(&tcon->num_fnext), ++ atomic_read_unchecked(&tcon->num_fclose)); + } + } + } +diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c +index 541ef81..a78deb8 100644 +--- a/fs/cifs/cifsfs.c ++++ b/fs/cifs/cifsfs.c +@@ -985,7 +985,7 @@ cifs_init_request_bufs(void) + cifs_req_cachep = kmem_cache_create("cifs_request", + CIFSMaxBufSize + + MAX_CIFS_HDR_SIZE, 0, +- SLAB_HWCACHE_ALIGN, NULL); ++ SLAB_HWCACHE_ALIGN | SLAB_USERCOPY, NULL); + if (cifs_req_cachep == NULL) + return -ENOMEM; + +@@ -1012,7 +1012,7 @@ cifs_init_request_bufs(void) + efficient to alloc 1 per page off the slab compared to 17K (5page) + alloc of large cifs buffers even when page debugging is on */ + cifs_sm_req_cachep = kmem_cache_create("cifs_small_rq", +- MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN, ++ MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN | SLAB_USERCOPY, + NULL); + if (cifs_sm_req_cachep == NULL) { + mempool_destroy(cifs_req_poolp); +@@ -1097,8 +1097,8 @@ init_cifs(void) + atomic_set(&bufAllocCount, 0); + atomic_set(&smBufAllocCount, 0); + #ifdef CONFIG_CIFS_STATS2 +- atomic_set(&totBufAllocCount, 0); +- atomic_set(&totSmBufAllocCount, 0); ++ atomic_set_unchecked(&totBufAllocCount, 0); ++ atomic_set_unchecked(&totSmBufAllocCount, 0); + #endif /* CONFIG_CIFS_STATS2 */ + + atomic_set(&midCount, 0); +diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h +index 73fea28..b996b84 100644 +--- a/fs/cifs/cifsglob.h ++++ b/fs/cifs/cifsglob.h +@@ -439,28 +439,28 @@ struct cifs_tcon { + __u16 Flags; /* optional support bits */ + enum statusEnum tidStatus; + #ifdef CONFIG_CIFS_STATS +- atomic_t num_smbs_sent; +- atomic_t num_writes; +- atomic_t num_reads; +- atomic_t num_flushes; +- atomic_t num_oplock_brks; +- atomic_t num_opens; +- atomic_t num_closes; +- atomic_t num_deletes; +- atomic_t num_mkdirs; +- atomic_t num_posixopens; +- atomic_t num_posixmkdirs; +- atomic_t num_rmdirs; +- atomic_t num_renames; +- atomic_t num_t2renames; +- atomic_t num_ffirst; +- atomic_t num_fnext; +- atomic_t num_fclose; +- atomic_t num_hardlinks; +- atomic_t num_symlinks; +- atomic_t num_locks; +- atomic_t num_acl_get; +- atomic_t num_acl_set; ++ atomic_unchecked_t num_smbs_sent; ++ atomic_unchecked_t num_writes; ++ atomic_unchecked_t num_reads; ++ atomic_unchecked_t num_flushes; ++ atomic_unchecked_t num_oplock_brks; ++ atomic_unchecked_t num_opens; ++ atomic_unchecked_t num_closes; ++ atomic_unchecked_t num_deletes; ++ atomic_unchecked_t num_mkdirs; ++ atomic_unchecked_t num_posixopens; ++ atomic_unchecked_t num_posixmkdirs; ++ atomic_unchecked_t num_rmdirs; ++ atomic_unchecked_t num_renames; ++ atomic_unchecked_t num_t2renames; ++ atomic_unchecked_t num_ffirst; ++ atomic_unchecked_t num_fnext; ++ atomic_unchecked_t num_fclose; ++ atomic_unchecked_t num_hardlinks; ++ atomic_unchecked_t num_symlinks; ++ atomic_unchecked_t num_locks; ++ atomic_unchecked_t num_acl_get; ++ atomic_unchecked_t num_acl_set; + #ifdef CONFIG_CIFS_STATS2 + unsigned long long time_writes; + unsigned long long time_reads; +@@ -677,7 +677,7 @@ convert_delimiter(char *path, char delim) + } + + #ifdef CONFIG_CIFS_STATS +-#define cifs_stats_inc atomic_inc ++#define cifs_stats_inc atomic_inc_unchecked + + static inline void cifs_stats_bytes_written(struct cifs_tcon *tcon, + unsigned int bytes) +@@ -1036,8 +1036,8 @@ GLOBAL_EXTERN atomic_t tconInfoReconnectCount; + /* Various Debug counters */ + GLOBAL_EXTERN atomic_t bufAllocCount; /* current number allocated */ + #ifdef CONFIG_CIFS_STATS2 +-GLOBAL_EXTERN atomic_t totBufAllocCount; /* total allocated over all time */ +-GLOBAL_EXTERN atomic_t totSmBufAllocCount; ++GLOBAL_EXTERN atomic_unchecked_t totBufAllocCount; /* total allocated over all time */ ++GLOBAL_EXTERN atomic_unchecked_t totSmBufAllocCount; + #endif + GLOBAL_EXTERN atomic_t smBufAllocCount; + GLOBAL_EXTERN atomic_t midCount; +diff --git a/fs/cifs/link.c b/fs/cifs/link.c +index 6b0e064..94e6c3c 100644 +--- a/fs/cifs/link.c ++++ b/fs/cifs/link.c +@@ -600,7 +600,7 @@ symlink_exit: + + void cifs_put_link(struct dentry *direntry, struct nameidata *nd, void *cookie) + { +- char *p = nd_get_link(nd); ++ const char *p = nd_get_link(nd); + if (!IS_ERR(p)) + kfree(p); + } +diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c +index c29d1aa..58018da 100644 +--- a/fs/cifs/misc.c ++++ b/fs/cifs/misc.c +@@ -156,7 +156,7 @@ cifs_buf_get(void) + memset(ret_buf, 0, sizeof(struct smb_hdr) + 3); + atomic_inc(&bufAllocCount); + #ifdef CONFIG_CIFS_STATS2 +- atomic_inc(&totBufAllocCount); ++ atomic_inc_unchecked(&totBufAllocCount); + #endif /* CONFIG_CIFS_STATS2 */ + } + +@@ -191,7 +191,7 @@ cifs_small_buf_get(void) + /* memset(ret_buf, 0, sizeof(struct smb_hdr) + 27);*/ + atomic_inc(&smBufAllocCount); + #ifdef CONFIG_CIFS_STATS2 +- atomic_inc(&totSmBufAllocCount); ++ atomic_inc_unchecked(&totSmBufAllocCount); + #endif /* CONFIG_CIFS_STATS2 */ + + } +diff --git a/fs/coda/cache.c b/fs/coda/cache.c +index 6901578..d402eb5 100644 +--- a/fs/coda/cache.c ++++ b/fs/coda/cache.c +@@ -24,7 +24,7 @@ + #include "coda_linux.h" + #include "coda_cache.h" + +-static atomic_t permission_epoch = ATOMIC_INIT(0); ++static atomic_unchecked_t permission_epoch = ATOMIC_INIT(0); + + /* replace or extend an acl cache hit */ + void coda_cache_enter(struct inode *inode, int mask) +@@ -32,7 +32,7 @@ void coda_cache_enter(struct inode *inode, int mask) + struct coda_inode_info *cii = ITOC(inode); + + spin_lock(&cii->c_lock); +- cii->c_cached_epoch = atomic_read(&permission_epoch); ++ cii->c_cached_epoch = atomic_read_unchecked(&permission_epoch); + if (cii->c_uid != current_fsuid()) { + cii->c_uid = current_fsuid(); + cii->c_cached_perm = mask; +@@ -46,14 +46,14 @@ void coda_cache_clear_inode(struct inode *inode) + { + struct coda_inode_info *cii = ITOC(inode); + spin_lock(&cii->c_lock); +- cii->c_cached_epoch = atomic_read(&permission_epoch) - 1; ++ cii->c_cached_epoch = atomic_read_unchecked(&permission_epoch) - 1; + spin_unlock(&cii->c_lock); + } + + /* remove all acl caches */ + void coda_cache_clear_all(struct super_block *sb) + { +- atomic_inc(&permission_epoch); ++ atomic_inc_unchecked(&permission_epoch); + } + + +@@ -66,7 +66,7 @@ int coda_cache_check(struct inode *inode, int mask) + spin_lock(&cii->c_lock); + hit = (mask & cii->c_cached_perm) == mask && + cii->c_uid == current_fsuid() && +- cii->c_cached_epoch == atomic_read(&permission_epoch); ++ cii->c_cached_epoch == atomic_read_unchecked(&permission_epoch); + spin_unlock(&cii->c_lock); + + return hit; +diff --git a/fs/compat.c b/fs/compat.c +index f2944ac..62845d2 100644 +--- a/fs/compat.c ++++ b/fs/compat.c +@@ -490,7 +490,7 @@ compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p) + + set_fs(KERNEL_DS); + /* The __user pointer cast is valid because of the set_fs() */ +- ret = sys_io_setup(nr_reqs, (aio_context_t __user *) &ctx64); ++ ret = sys_io_setup(nr_reqs, (aio_context_t __force_user *) &ctx64); + set_fs(oldfs); + /* truncating is ok because it's a user address */ + if (!ret) +@@ -548,7 +548,7 @@ ssize_t compat_rw_copy_check_uvector(int type, + goto out; + + ret = -EINVAL; +- if (nr_segs > UIO_MAXIOV || nr_segs < 0) ++ if (nr_segs > UIO_MAXIOV) + goto out; + if (nr_segs > fast_segs) { + ret = -ENOMEM; +@@ -831,6 +831,7 @@ struct compat_old_linux_dirent { + + struct compat_readdir_callback { + struct compat_old_linux_dirent __user *dirent; ++ struct file * file; + int result; + }; + +@@ -848,6 +849,10 @@ static int compat_fillonedir(void *__buf, const char *name, int namlen, + buf->result = -EOVERFLOW; + return -EOVERFLOW; + } ++ ++ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino)) ++ return 0; ++ + buf->result++; + dirent = buf->dirent; + if (!access_ok(VERIFY_WRITE, dirent, +@@ -880,6 +885,7 @@ asmlinkage long compat_sys_old_readdir(unsigned int fd, + + buf.result = 0; + buf.dirent = dirent; ++ buf.file = file; + + error = vfs_readdir(file, compat_fillonedir, &buf); + if (buf.result) +@@ -900,6 +906,7 @@ struct compat_linux_dirent { + struct compat_getdents_callback { + struct compat_linux_dirent __user *current_dir; + struct compat_linux_dirent __user *previous; ++ struct file * file; + int count; + int error; + }; +@@ -921,6 +928,10 @@ static int compat_filldir(void *__buf, const char *name, int namlen, + buf->error = -EOVERFLOW; + return -EOVERFLOW; + } ++ ++ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino)) ++ return 0; ++ + dirent = buf->previous; + if (dirent) { + if (__put_user(offset, &dirent->d_off)) +@@ -968,6 +979,7 @@ asmlinkage long compat_sys_getdents(unsigned int fd, + buf.previous = NULL; + buf.count = count; + buf.error = 0; ++ buf.file = file; + + error = vfs_readdir(file, compat_filldir, &buf); + if (error >= 0) +@@ -989,6 +1001,7 @@ out: + struct compat_getdents_callback64 { + struct linux_dirent64 __user *current_dir; + struct linux_dirent64 __user *previous; ++ struct file * file; + int count; + int error; + }; +@@ -1005,6 +1018,10 @@ static int compat_filldir64(void * __buf, const char * name, int namlen, loff_t + buf->error = -EINVAL; /* only used if we fail.. */ + if (reclen > buf->count) + return -EINVAL; ++ ++ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino)) ++ return 0; ++ + dirent = buf->previous; + + if (dirent) { +@@ -1056,13 +1073,14 @@ asmlinkage long compat_sys_getdents64(unsigned int fd, + buf.previous = NULL; + buf.count = count; + buf.error = 0; ++ buf.file = file; + + error = vfs_readdir(file, compat_filldir64, &buf); + if (error >= 0) + error = buf.error; + lastdirent = buf.previous; + if (lastdirent) { +- typeof(lastdirent->d_off) d_off = file->f_pos; ++ typeof(((struct linux_dirent64 *)0)->d_off) d_off = file->f_pos; + if (__put_user_unaligned(d_off, &lastdirent->d_off)) + error = -EFAULT; + else +diff --git a/fs/compat_binfmt_elf.c b/fs/compat_binfmt_elf.c +index 112e45a..b59845b 100644 +--- a/fs/compat_binfmt_elf.c ++++ b/fs/compat_binfmt_elf.c +@@ -30,11 +30,13 @@ + #undef elf_phdr + #undef elf_shdr + #undef elf_note ++#undef elf_dyn + #undef elf_addr_t + #define elfhdr elf32_hdr + #define elf_phdr elf32_phdr + #define elf_shdr elf32_shdr + #define elf_note elf32_note ++#define elf_dyn Elf32_Dyn + #define elf_addr_t Elf32_Addr + + /* +diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c +index debdfe0..75d31d4 100644 +--- a/fs/compat_ioctl.c ++++ b/fs/compat_ioctl.c +@@ -210,6 +210,8 @@ static int do_video_set_spu_palette(unsigned int fd, unsigned int cmd, + + err = get_user(palp, &up->palette); + err |= get_user(length, &up->length); ++ if (err) ++ return -EFAULT; + + up_native = compat_alloc_user_space(sizeof(struct video_spu_palette)); + err = put_user(compat_ptr(palp), &up_native->palette); +@@ -621,7 +623,7 @@ static int serial_struct_ioctl(unsigned fd, unsigned cmd, + return -EFAULT; + if (__get_user(udata, &ss32->iomem_base)) + return -EFAULT; +- ss.iomem_base = compat_ptr(udata); ++ ss.iomem_base = (unsigned char __force_kernel *)compat_ptr(udata); + if (__get_user(ss.iomem_reg_shift, &ss32->iomem_reg_shift) || + __get_user(ss.port_high, &ss32->port_high)) + return -EFAULT; +@@ -796,7 +798,7 @@ static int compat_ioctl_preallocate(struct file *file, + copy_in_user(&p->l_len, &p32->l_len, sizeof(s64)) || + copy_in_user(&p->l_sysid, &p32->l_sysid, sizeof(s32)) || + copy_in_user(&p->l_pid, &p32->l_pid, sizeof(u32)) || +- copy_in_user(&p->l_pad, &p32->l_pad, 4*sizeof(u32))) ++ copy_in_user(p->l_pad, &p32->l_pad, 4*sizeof(u32))) + return -EFAULT; + + return ioctl_preallocate(file, p); +@@ -1610,8 +1612,8 @@ asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd, + static int __init init_sys32_ioctl_cmp(const void *p, const void *q) + { + unsigned int a, b; +- a = *(unsigned int *)p; +- b = *(unsigned int *)q; ++ a = *(const unsigned int *)p; ++ b = *(const unsigned int *)q; + if (a > b) + return 1; + if (a < b) +diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c +index 7e6c52d..94bc756 100644 +--- a/fs/configfs/dir.c ++++ b/fs/configfs/dir.c +@@ -1564,7 +1564,8 @@ static int configfs_readdir(struct file * filp, void * dirent, filldir_t filldir + } + for (p=q->next; p!= &parent_sd->s_children; p=p->next) { + struct configfs_dirent *next; +- const char * name; ++ const unsigned char * name; ++ char d_name[sizeof(next->s_dentry->d_iname)]; + int len; + struct inode *inode = NULL; + +@@ -1574,7 +1575,12 @@ static int configfs_readdir(struct file * filp, void * dirent, filldir_t filldir + continue; + + name = configfs_get_name(next); +- len = strlen(name); ++ if (next->s_dentry && name == next->s_dentry->d_iname) { ++ len = next->s_dentry->d_name.len; ++ memcpy(d_name, name, len); ++ name = d_name; ++ } else ++ len = strlen(name); + + /* + * We'll have a dentry and an inode for +diff --git a/fs/dcache.c b/fs/dcache.c +index b80531c..8ca7e2d 100644 +--- a/fs/dcache.c ++++ b/fs/dcache.c +@@ -3084,7 +3084,7 @@ void __init vfs_caches_init(unsigned long mempages) + mempages -= reserve; + + names_cachep = kmem_cache_create("names_cache", PATH_MAX, 0, +- SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL); ++ SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_USERCOPY, NULL); + + dcache_init(); + inode_init(); +diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c +index b80bc84..0d46d1a 100644 +--- a/fs/debugfs/inode.c ++++ b/fs/debugfs/inode.c +@@ -408,7 +408,11 @@ EXPORT_SYMBOL_GPL(debugfs_create_file); + struct dentry *debugfs_create_dir(const char *name, struct dentry *parent) + { + return debugfs_create_file(name, ++#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT ++ S_IFDIR | S_IRWXU, ++#else + S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO, ++#endif + parent, NULL, NULL); + } + EXPORT_SYMBOL_GPL(debugfs_create_dir); +diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c +index ab35b11..b30af66 100644 +--- a/fs/ecryptfs/inode.c ++++ b/fs/ecryptfs/inode.c +@@ -672,7 +672,7 @@ static int ecryptfs_readlink_lower(struct dentry *dentry, char **buf, + old_fs = get_fs(); + set_fs(get_ds()); + rc = lower_dentry->d_inode->i_op->readlink(lower_dentry, +- (char __user *)lower_buf, ++ (char __force_user *)lower_buf, + lower_bufsiz); + set_fs(old_fs); + if (rc < 0) +@@ -718,7 +718,7 @@ static void *ecryptfs_follow_link(struct dentry *dentry, struct nameidata *nd) + } + old_fs = get_fs(); + set_fs(get_ds()); +- rc = dentry->d_inode->i_op->readlink(dentry, (char __user *)buf, len); ++ rc = dentry->d_inode->i_op->readlink(dentry, (char __force_user *)buf, len); + set_fs(old_fs); + if (rc < 0) { + kfree(buf); +@@ -733,7 +733,7 @@ out: + static void + ecryptfs_put_link(struct dentry *dentry, struct nameidata *nd, void *ptr) + { +- char *buf = nd_get_link(nd); ++ const char *buf = nd_get_link(nd); + if (!IS_ERR(buf)) { + /* Free the char* */ + kfree(buf); +diff --git a/fs/ecryptfs/miscdev.c b/fs/ecryptfs/miscdev.c +index c0038f6..47ab347 100644 +--- a/fs/ecryptfs/miscdev.c ++++ b/fs/ecryptfs/miscdev.c +@@ -355,7 +355,7 @@ check_list: + goto out_unlock_msg_ctx; + i = PKT_TYPE_SIZE + PKT_CTR_SIZE; + if (msg_ctx->msg) { +- if (copy_to_user(&buf[i], packet_length, packet_length_size)) ++ if (packet_length_size > sizeof(packet_length) || copy_to_user(&buf[i], packet_length, packet_length_size)) + goto out_unlock_msg_ctx; + i += packet_length_size; + if (copy_to_user(&buf[i], msg_ctx->msg, msg_ctx->msg_size)) +diff --git a/fs/ecryptfs/read_write.c b/fs/ecryptfs/read_write.c +index b2a34a1..162fa69 100644 +--- a/fs/ecryptfs/read_write.c ++++ b/fs/ecryptfs/read_write.c +@@ -48,7 +48,7 @@ int ecryptfs_write_lower(struct inode *ecryptfs_inode, char *data, + return -EIO; + fs_save = get_fs(); + set_fs(get_ds()); +- rc = vfs_write(lower_file, data, size, &offset); ++ rc = vfs_write(lower_file, (const char __force_user *)data, size, &offset); + set_fs(fs_save); + mark_inode_dirty_sync(ecryptfs_inode); + return rc; +@@ -244,7 +244,7 @@ int ecryptfs_read_lower(char *data, loff_t offset, size_t size, + return -EIO; + fs_save = get_fs(); + set_fs(get_ds()); +- rc = vfs_read(lower_file, data, size, &offset); ++ rc = vfs_read(lower_file, (char __force_user *)data, size, &offset); + set_fs(fs_save); + return rc; + } +diff --git a/fs/exec.c b/fs/exec.c +index 29e5f84..8bfc7cb 100644 +--- a/fs/exec.c ++++ b/fs/exec.c +@@ -55,6 +55,15 @@ + #include <linux/pipe_fs_i.h> + #include <linux/oom.h> + #include <linux/compat.h> ++#include <linux/random.h> ++#include <linux/seq_file.h> ++ ++#ifdef CONFIG_PAX_REFCOUNT ++#include <linux/kallsyms.h> ++#include <linux/kdebug.h> ++#endif ++ ++#include <trace/events/fs.h> + + #include <asm/uaccess.h> + #include <asm/mmu_context.h> +@@ -66,6 +75,18 @@ + + #include <trace/events/sched.h> + ++#ifdef CONFIG_PAX_HAVE_ACL_FLAGS ++void __weak pax_set_initial_flags(struct linux_binprm *bprm) ++{ ++ WARN_ONCE(1, "PAX: PAX_HAVE_ACL_FLAGS was enabled without providing the pax_set_initial_flags callback, this is probably not what you wanted.\n"); ++} ++#endif ++ ++#ifdef CONFIG_PAX_HOOK_ACL_FLAGS ++void (*pax_set_initial_flags_func)(struct linux_binprm *bprm); ++EXPORT_SYMBOL(pax_set_initial_flags_func); ++#endif ++ + int core_uses_pid; + char core_pattern[CORENAME_MAX_SIZE] = "core"; + unsigned int core_pipe_limit; +@@ -75,7 +96,7 @@ struct core_name { + char *corename; + int used, size; + }; +-static atomic_t call_count = ATOMIC_INIT(1); ++static atomic_unchecked_t call_count = ATOMIC_INIT(1); + + /* The maximal length of core_pattern is also specified in sysctl.c */ + +@@ -191,18 +212,10 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos, + int write) + { + struct page *page; +- int ret; + +-#ifdef CONFIG_STACK_GROWSUP +- if (write) { +- ret = expand_downwards(bprm->vma, pos); +- if (ret < 0) +- return NULL; +- } +-#endif +- ret = get_user_pages(current, bprm->mm, pos, +- 1, write, 1, &page, NULL); +- if (ret <= 0) ++ if (0 > expand_downwards(bprm->vma, pos)) ++ return NULL; ++ if (0 >= get_user_pages(current, bprm->mm, pos, 1, write, 1, &page, NULL)) + return NULL; + + if (write) { +@@ -218,6 +231,17 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos, + if (size <= ARG_MAX) + return page; + ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ // only allow 512KB for argv+env on suid/sgid binaries ++ // to prevent easy ASLR exhaustion ++ if (((bprm->cred->euid != current_euid()) || ++ (bprm->cred->egid != current_egid())) && ++ (size > (512 * 1024))) { ++ put_page(page); ++ return NULL; ++ } ++#endif ++ + /* + * Limit to 1/4-th the stack size for the argv+env strings. + * This ensures that: +@@ -277,6 +301,11 @@ static int __bprm_mm_init(struct linux_binprm *bprm) + vma->vm_end = STACK_TOP_MAX; + vma->vm_start = vma->vm_end - PAGE_SIZE; + vma->vm_flags = VM_STACK_FLAGS | VM_STACK_INCOMPLETE_SETUP; ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ vma->vm_flags &= ~(VM_EXEC | VM_MAYEXEC); ++#endif ++ + vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); + INIT_LIST_HEAD(&vma->anon_vma_chain); + +@@ -291,6 +320,12 @@ static int __bprm_mm_init(struct linux_binprm *bprm) + mm->stack_vm = mm->total_vm = 1; + up_write(&mm->mmap_sem); + bprm->p = vma->vm_end - sizeof(void *); ++ ++#ifdef CONFIG_PAX_RANDUSTACK ++ if (randomize_va_space) ++ bprm->p ^= random32() & ~PAGE_MASK; ++#endif ++ + return 0; + err: + up_write(&mm->mmap_sem); +@@ -399,19 +434,7 @@ err: + return err; + } + +-struct user_arg_ptr { +-#ifdef CONFIG_COMPAT +- bool is_compat; +-#endif +- union { +- const char __user *const __user *native; +-#ifdef CONFIG_COMPAT +- compat_uptr_t __user *compat; +-#endif +- } ptr; +-}; +- +-static const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr) ++const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr) + { + const char __user *native; + +@@ -420,14 +443,14 @@ static const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr) + compat_uptr_t compat; + + if (get_user(compat, argv.ptr.compat + nr)) +- return ERR_PTR(-EFAULT); ++ return (const char __force_user *)ERR_PTR(-EFAULT); + + return compat_ptr(compat); + } + #endif + + if (get_user(native, argv.ptr.native + nr)) +- return ERR_PTR(-EFAULT); ++ return (const char __force_user *)ERR_PTR(-EFAULT); + + return native; + } +@@ -446,7 +469,7 @@ static int count(struct user_arg_ptr argv, int max) + if (!p) + break; + +- if (IS_ERR(p)) ++ if (IS_ERR((const char __force_kernel *)p)) + return -EFAULT; + + if (i++ >= max) +@@ -480,7 +503,7 @@ static int copy_strings(int argc, struct user_arg_ptr argv, + + ret = -EFAULT; + str = get_user_arg_ptr(argv, argc); +- if (IS_ERR(str)) ++ if (IS_ERR((const char __force_kernel *)str)) + goto out; + + len = strnlen_user(str, MAX_ARG_STRLEN); +@@ -562,7 +585,7 @@ int copy_strings_kernel(int argc, const char *const *__argv, + int r; + mm_segment_t oldfs = get_fs(); + struct user_arg_ptr argv = { +- .ptr.native = (const char __user *const __user *)__argv, ++ .ptr.native = (const char __force_user *const __force_user *)__argv, + }; + + set_fs(KERNEL_DS); +@@ -597,7 +620,8 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift) + unsigned long new_end = old_end - shift; + struct mmu_gather tlb; + +- BUG_ON(new_start > new_end); ++ if (new_start >= new_end || new_start < mmap_min_addr) ++ return -ENOMEM; + + /* + * ensure there are no vmas between where we want to go +@@ -606,6 +630,10 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift) + if (vma != find_vma(mm, new_start)) + return -EFAULT; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ BUG_ON(pax_find_mirror_vma(vma)); ++#endif ++ + /* + * cover the whole range: [new_start, old_end) + */ +@@ -686,10 +714,6 @@ int setup_arg_pages(struct linux_binprm *bprm, + stack_top = arch_align_stack(stack_top); + stack_top = PAGE_ALIGN(stack_top); + +- if (unlikely(stack_top < mmap_min_addr) || +- unlikely(vma->vm_end - vma->vm_start >= stack_top - mmap_min_addr)) +- return -ENOMEM; +- + stack_shift = vma->vm_end - stack_top; + + bprm->p -= stack_shift; +@@ -701,8 +725,28 @@ int setup_arg_pages(struct linux_binprm *bprm, + bprm->exec -= stack_shift; + + down_write(&mm->mmap_sem); ++ ++ /* Move stack pages down in memory. */ ++ if (stack_shift) { ++ ret = shift_arg_pages(vma, stack_shift); ++ if (ret) ++ goto out_unlock; ++ } ++ + vm_flags = VM_STACK_FLAGS; + ++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) ++ if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { ++ vm_flags &= ~VM_EXEC; ++ ++#ifdef CONFIG_PAX_MPROTECT ++ if (mm->pax_flags & MF_PAX_MPROTECT) ++ vm_flags &= ~VM_MAYEXEC; ++#endif ++ ++ } ++#endif ++ + /* + * Adjust stack execute permissions; explicitly enable for + * EXSTACK_ENABLE_X, disable for EXSTACK_DISABLE_X and leave alone +@@ -721,13 +765,6 @@ int setup_arg_pages(struct linux_binprm *bprm, + goto out_unlock; + BUG_ON(prev != vma); + +- /* Move stack pages down in memory. */ +- if (stack_shift) { +- ret = shift_arg_pages(vma, stack_shift); +- if (ret) +- goto out_unlock; +- } +- + /* mprotect_fixup is overkill to remove the temporary stack flags */ + vma->vm_flags &= ~VM_STACK_INCOMPLETE_SETUP; + +@@ -785,6 +822,8 @@ struct file *open_exec(const char *name) + + fsnotify_open(file); + ++ trace_open_exec(name); ++ + err = deny_write_access(file); + if (err) + goto exit; +@@ -808,7 +847,7 @@ int kernel_read(struct file *file, loff_t offset, + old_fs = get_fs(); + set_fs(get_ds()); + /* The cast to a user pointer is valid due to the set_fs() */ +- result = vfs_read(file, (void __user *)addr, count, &pos); ++ result = vfs_read(file, (void __force_user *)addr, count, &pos); + set_fs(old_fs); + return result; + } +@@ -1254,7 +1293,7 @@ static int check_unsafe_exec(struct linux_binprm *bprm) + } + rcu_read_unlock(); + +- if (p->fs->users > n_fs) { ++ if (atomic_read(&p->fs->users) > n_fs) { + bprm->unsafe |= LSM_UNSAFE_SHARE; + } else { + res = -EAGAIN; +@@ -1451,6 +1490,28 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs) + + EXPORT_SYMBOL(search_binary_handler); + ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++static DEFINE_PER_CPU(u64, exec_counter); ++static int __init init_exec_counters(void) ++{ ++ unsigned int cpu; ++ ++ for_each_possible_cpu(cpu) { ++ per_cpu(exec_counter, cpu) = (u64)cpu; ++ } ++ ++ return 0; ++} ++early_initcall(init_exec_counters); ++static inline void increment_exec_counter(void) ++{ ++ BUILD_BUG_ON(NR_CPUS > (1 << 16)); ++ current->exec_id = this_cpu_add_return(exec_counter, 1 << 16); ++} ++#else ++static inline void increment_exec_counter(void) {} ++#endif ++ + /* + * sys_execve() executes a new program. + */ +@@ -1459,6 +1520,11 @@ static int do_execve_common(const char *filename, + struct user_arg_ptr envp, + struct pt_regs *regs) + { ++#ifdef CONFIG_GRKERNSEC ++ struct file *old_exec_file; ++ struct acl_subject_label *old_acl; ++ struct rlimit old_rlim[RLIM_NLIMITS]; ++#endif + struct linux_binprm *bprm; + struct file *file; + struct files_struct *displaced; +@@ -1466,6 +1532,8 @@ static int do_execve_common(const char *filename, + int retval; + const struct cred *cred = current_cred(); + ++ gr_learn_resource(current, RLIMIT_NPROC, atomic_read(&current->cred->user->processes), 1); ++ + /* + * We move the actual failure in case of RLIMIT_NPROC excess from + * set*uid() to execve() because too many poorly written programs +@@ -1506,12 +1574,27 @@ static int do_execve_common(const char *filename, + if (IS_ERR(file)) + goto out_unmark; + ++ if (gr_ptrace_readexec(file, bprm->unsafe)) { ++ retval = -EPERM; ++ goto out_file; ++ } ++ + sched_exec(); + + bprm->file = file; + bprm->filename = filename; + bprm->interp = filename; + ++ if (gr_process_user_ban()) { ++ retval = -EPERM; ++ goto out_file; ++ } ++ ++ if (!gr_acl_handle_execve(file->f_dentry, file->f_vfsmnt)) { ++ retval = -EACCES; ++ goto out_file; ++ } ++ + retval = bprm_mm_init(bprm); + if (retval) + goto out_file; +@@ -1528,24 +1611,65 @@ static int do_execve_common(const char *filename, + if (retval < 0) + goto out; + ++#ifdef CONFIG_GRKERNSEC ++ old_acl = current->acl; ++ memcpy(old_rlim, current->signal->rlim, sizeof(old_rlim)); ++ old_exec_file = current->exec_file; ++ get_file(file); ++ current->exec_file = file; ++#endif ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ /* limit suid stack to 8MB ++ we saved the old limits above and will restore them if this exec fails ++ */ ++ if (((bprm->cred->euid != current_euid()) || (bprm->cred->egid != current_egid())) && ++ (old_rlim[RLIMIT_STACK].rlim_cur > (8 * 1024 * 1024))) ++ current->signal->rlim[RLIMIT_STACK].rlim_cur = 8 * 1024 * 1024; ++#endif ++ ++ if (!gr_tpe_allow(file)) { ++ retval = -EACCES; ++ goto out_fail; ++ } ++ ++ if (gr_check_crash_exec(file)) { ++ retval = -EACCES; ++ goto out_fail; ++ } ++ ++ retval = gr_set_proc_label(file->f_dentry, file->f_vfsmnt, ++ bprm->unsafe); ++ if (retval < 0) ++ goto out_fail; ++ + retval = copy_strings_kernel(1, &bprm->filename, bprm); + if (retval < 0) +- goto out; ++ goto out_fail; + + bprm->exec = bprm->p; + retval = copy_strings(bprm->envc, envp, bprm); + if (retval < 0) +- goto out; ++ goto out_fail; + + retval = copy_strings(bprm->argc, argv, bprm); + if (retval < 0) +- goto out; ++ goto out_fail; ++ ++ gr_log_chroot_exec(file->f_dentry, file->f_vfsmnt); ++ ++ gr_handle_exec_args(bprm, argv); + + retval = search_binary_handler(bprm,regs); + if (retval < 0) +- goto out; ++ goto out_fail; ++#ifdef CONFIG_GRKERNSEC ++ if (old_exec_file) ++ fput(old_exec_file); ++#endif + + /* execve succeeded */ ++ ++ increment_exec_counter(); + current->fs->in_exec = 0; + current->in_execve = 0; + acct_update_integrals(current); +@@ -1554,6 +1678,14 @@ static int do_execve_common(const char *filename, + put_files_struct(displaced); + return retval; + ++out_fail: ++#ifdef CONFIG_GRKERNSEC ++ current->acl = old_acl; ++ memcpy(current->signal->rlim, old_rlim, sizeof(old_rlim)); ++ fput(current->exec_file); ++ current->exec_file = old_exec_file; ++#endif ++ + out: + if (bprm->mm) { + acct_arg_size(bprm, 0); +@@ -1627,7 +1759,7 @@ static int expand_corename(struct core_name *cn) + { + char *old_corename = cn->corename; + +- cn->size = CORENAME_MAX_SIZE * atomic_inc_return(&call_count); ++ cn->size = CORENAME_MAX_SIZE * atomic_inc_return_unchecked(&call_count); + cn->corename = krealloc(old_corename, cn->size, GFP_KERNEL); + + if (!cn->corename) { +@@ -1724,7 +1856,7 @@ static int format_corename(struct core_name *cn, long signr) + int pid_in_pattern = 0; + int err = 0; + +- cn->size = CORENAME_MAX_SIZE * atomic_read(&call_count); ++ cn->size = CORENAME_MAX_SIZE * atomic_read_unchecked(&call_count); + cn->corename = kmalloc(cn->size, GFP_KERNEL); + cn->used = 0; + +@@ -1821,6 +1953,250 @@ out: + return ispipe; + } + ++int pax_check_flags(unsigned long *flags) ++{ ++ int retval = 0; ++ ++#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_SEGMEXEC) ++ if (*flags & MF_PAX_SEGMEXEC) ++ { ++ *flags &= ~MF_PAX_SEGMEXEC; ++ retval = -EINVAL; ++ } ++#endif ++ ++ if ((*flags & MF_PAX_PAGEEXEC) ++ ++#ifdef CONFIG_PAX_PAGEEXEC ++ && (*flags & MF_PAX_SEGMEXEC) ++#endif ++ ++ ) ++ { ++ *flags &= ~MF_PAX_PAGEEXEC; ++ retval = -EINVAL; ++ } ++ ++ if ((*flags & MF_PAX_MPROTECT) ++ ++#ifdef CONFIG_PAX_MPROTECT ++ && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) ++#endif ++ ++ ) ++ { ++ *flags &= ~MF_PAX_MPROTECT; ++ retval = -EINVAL; ++ } ++ ++ if ((*flags & MF_PAX_EMUTRAMP) ++ ++#ifdef CONFIG_PAX_EMUTRAMP ++ && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) ++#endif ++ ++ ) ++ { ++ *flags &= ~MF_PAX_EMUTRAMP; ++ retval = -EINVAL; ++ } ++ ++ return retval; ++} ++ ++EXPORT_SYMBOL(pax_check_flags); ++ ++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) ++void pax_report_fault(struct pt_regs *regs, void *pc, void *sp) ++{ ++ struct task_struct *tsk = current; ++ struct mm_struct *mm = current->mm; ++ char *buffer_exec = (char *)__get_free_page(GFP_KERNEL); ++ char *buffer_fault = (char *)__get_free_page(GFP_KERNEL); ++ char *path_exec = NULL; ++ char *path_fault = NULL; ++ unsigned long start = 0UL, end = 0UL, offset = 0UL; ++ ++ if (buffer_exec && buffer_fault) { ++ struct vm_area_struct *vma, *vma_exec = NULL, *vma_fault = NULL; ++ ++ down_read(&mm->mmap_sem); ++ vma = mm->mmap; ++ while (vma && (!vma_exec || !vma_fault)) { ++ if ((vma->vm_flags & VM_EXECUTABLE) && vma->vm_file) ++ vma_exec = vma; ++ if (vma->vm_start <= (unsigned long)pc && (unsigned long)pc < vma->vm_end) ++ vma_fault = vma; ++ vma = vma->vm_next; ++ } ++ if (vma_exec) { ++ path_exec = d_path(&vma_exec->vm_file->f_path, buffer_exec, PAGE_SIZE); ++ if (IS_ERR(path_exec)) ++ path_exec = "<path too long>"; ++ else { ++ path_exec = mangle_path(buffer_exec, path_exec, "\t\n\\"); ++ if (path_exec) { ++ *path_exec = 0; ++ path_exec = buffer_exec; ++ } else ++ path_exec = "<path too long>"; ++ } ++ } ++ if (vma_fault) { ++ start = vma_fault->vm_start; ++ end = vma_fault->vm_end; ++ offset = vma_fault->vm_pgoff << PAGE_SHIFT; ++ if (vma_fault->vm_file) { ++ path_fault = d_path(&vma_fault->vm_file->f_path, buffer_fault, PAGE_SIZE); ++ if (IS_ERR(path_fault)) ++ path_fault = "<path too long>"; ++ else { ++ path_fault = mangle_path(buffer_fault, path_fault, "\t\n\\"); ++ if (path_fault) { ++ *path_fault = 0; ++ path_fault = buffer_fault; ++ } else ++ path_fault = "<path too long>"; ++ } ++ } else ++ path_fault = "<anonymous mapping>"; ++ } ++ up_read(&mm->mmap_sem); ++ } ++ if (tsk->signal->curr_ip) ++ printk(KERN_ERR "PAX: From %pI4: execution attempt in: %s, %08lx-%08lx %08lx\n", &tsk->signal->curr_ip, path_fault, start, end, offset); ++ else ++ printk(KERN_ERR "PAX: execution attempt in: %s, %08lx-%08lx %08lx\n", path_fault, start, end, offset); ++ printk(KERN_ERR "PAX: terminating task: %s(%s):%d, uid/euid: %u/%u, " ++ "PC: %p, SP: %p\n", path_exec, tsk->comm, task_pid_nr(tsk), ++ task_uid(tsk), task_euid(tsk), pc, sp); ++ free_page((unsigned long)buffer_exec); ++ free_page((unsigned long)buffer_fault); ++ pax_report_insns(regs, pc, sp); ++ do_coredump(SIGKILL, SIGKILL, regs); ++} ++#endif ++ ++#ifdef CONFIG_PAX_REFCOUNT ++void pax_report_refcount_overflow(struct pt_regs *regs) ++{ ++ if (current->signal->curr_ip) ++ printk(KERN_ERR "PAX: From %pI4: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n", ++ &current->signal->curr_ip, current->comm, task_pid_nr(current), current_uid(), current_euid()); ++ else ++ printk(KERN_ERR "PAX: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n", ++ current->comm, task_pid_nr(current), current_uid(), current_euid()); ++ print_symbol(KERN_ERR "PAX: refcount overflow occured at: %s\n", instruction_pointer(regs)); ++ show_regs(regs); ++ force_sig_info(SIGKILL, SEND_SIG_FORCED, current); ++} ++#endif ++ ++#ifdef CONFIG_PAX_USERCOPY ++/* 0: not at all, 1: fully, 2: fully inside frame, -1: partially (implies an error) */ ++static noinline int check_stack_object(const void *obj, unsigned long len) ++{ ++ const void * const stack = task_stack_page(current); ++ const void * const stackend = stack + THREAD_SIZE; ++ ++#if defined(CONFIG_FRAME_POINTER) && defined(CONFIG_X86) ++ const void *frame = NULL; ++ const void *oldframe; ++#endif ++ ++ if (obj + len < obj) ++ return -1; ++ ++ if (obj + len <= stack || stackend <= obj) ++ return 0; ++ ++ if (obj < stack || stackend < obj + len) ++ return -1; ++ ++#if defined(CONFIG_FRAME_POINTER) && defined(CONFIG_X86) ++ oldframe = __builtin_frame_address(1); ++ if (oldframe) ++ frame = __builtin_frame_address(2); ++ /* ++ low ----------------------------------------------> high ++ [saved bp][saved ip][args][local vars][saved bp][saved ip] ++ ^----------------^ ++ allow copies only within here ++ */ ++ while (stack <= frame && frame < stackend) { ++ /* if obj + len extends past the last frame, this ++ check won't pass and the next frame will be 0, ++ causing us to bail out and correctly report ++ the copy as invalid ++ */ ++ if (obj + len <= frame) ++ return obj >= oldframe + 2 * sizeof(void *) ? 2 : -1; ++ oldframe = frame; ++ frame = *(const void * const *)frame; ++ } ++ return -1; ++#else ++ return 1; ++#endif ++} ++ ++static __noreturn void pax_report_usercopy(const void *ptr, unsigned long len, bool to, const char *type) ++{ ++ if (current->signal->curr_ip) ++ printk(KERN_ERR "PAX: From %pI4: kernel memory %s attempt detected %s %p (%s) (%lu bytes)\n", ++ &current->signal->curr_ip, to ? "leak" : "overwrite", to ? "from" : "to", ptr, type ? : "unknown", len); ++ else ++ printk(KERN_ERR "PAX: kernel memory %s attempt detected %s %p (%s) (%lu bytes)\n", ++ to ? "leak" : "overwrite", to ? "from" : "to", ptr, type ? : "unknown", len); ++ dump_stack(); ++ gr_handle_kernel_exploit(); ++ do_group_exit(SIGKILL); ++} ++#endif ++ ++void check_object_size(const void *ptr, unsigned long n, bool to) ++{ ++ ++#ifdef CONFIG_PAX_USERCOPY ++ const char *type; ++ ++ if (!n) ++ return; ++ ++ type = check_heap_object(ptr, n, to); ++ if (!type) { ++ if (check_stack_object(ptr, n) != -1) ++ return; ++ type = "<process stack>"; ++ } ++ ++ pax_report_usercopy(ptr, n, to, type); ++#endif ++ ++} ++EXPORT_SYMBOL(check_object_size); ++ ++#ifdef CONFIG_PAX_MEMORY_STACKLEAK ++void pax_track_stack(void) ++{ ++ unsigned long sp = (unsigned long)&sp; ++ if (sp < current_thread_info()->lowest_stack && ++ sp > (unsigned long)task_stack_page(current)) ++ current_thread_info()->lowest_stack = sp; ++} ++EXPORT_SYMBOL(pax_track_stack); ++#endif ++ ++#ifdef CONFIG_PAX_SIZE_OVERFLOW ++void report_size_overflow(const char *file, unsigned int line, const char *func) ++{ ++ printk(KERN_ERR "PAX: size overflow detected in function %s %s:%u\n", func, file, line); ++ dump_stack(); ++ do_group_exit(SIGKILL); ++} ++EXPORT_SYMBOL(report_size_overflow); ++#endif ++ + static int zap_process(struct task_struct *start, int exit_code) + { + struct task_struct *t; +@@ -2018,17 +2394,17 @@ static void wait_for_dump_helpers(struct file *file) + pipe = file->f_path.dentry->d_inode->i_pipe; + + pipe_lock(pipe); +- pipe->readers++; +- pipe->writers--; ++ atomic_inc(&pipe->readers); ++ atomic_dec(&pipe->writers); + +- while ((pipe->readers > 1) && (!signal_pending(current))) { ++ while ((atomic_read(&pipe->readers) > 1) && (!signal_pending(current))) { + wake_up_interruptible_sync(&pipe->wait); + kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN); + pipe_wait(pipe); + } + +- pipe->readers--; +- pipe->writers++; ++ atomic_dec(&pipe->readers); ++ atomic_inc(&pipe->writers); + pipe_unlock(pipe); + + } +@@ -2089,7 +2465,7 @@ void do_coredump(long signr, int exit_code, struct pt_regs *regs) + int retval = 0; + int flag = 0; + int ispipe; +- static atomic_t core_dump_count = ATOMIC_INIT(0); ++ static atomic_unchecked_t core_dump_count = ATOMIC_INIT(0); + struct coredump_params cprm = { + .signr = signr, + .regs = regs, +@@ -2104,6 +2480,9 @@ void do_coredump(long signr, int exit_code, struct pt_regs *regs) + + audit_core_dumps(signr); + ++ if (signr == SIGSEGV || signr == SIGBUS || signr == SIGKILL || signr == SIGILL) ++ gr_handle_brute_attach(current, cprm.mm_flags); ++ + binfmt = mm->binfmt; + if (!binfmt || !binfmt->core_dump) + goto fail; +@@ -2171,7 +2550,7 @@ void do_coredump(long signr, int exit_code, struct pt_regs *regs) + } + cprm.limit = RLIM_INFINITY; + +- dump_count = atomic_inc_return(&core_dump_count); ++ dump_count = atomic_inc_return_unchecked(&core_dump_count); + if (core_pipe_limit && (core_pipe_limit < dump_count)) { + printk(KERN_WARNING "Pid %d(%s) over core_pipe_limit\n", + task_tgid_vnr(current), current->comm); +@@ -2198,6 +2577,8 @@ void do_coredump(long signr, int exit_code, struct pt_regs *regs) + } else { + struct inode *inode; + ++ gr_learn_resource(current, RLIMIT_CORE, binfmt->min_coredump, 1); ++ + if (cprm.limit < binfmt->min_coredump) + goto fail_unlock; + +@@ -2241,7 +2622,7 @@ close_fail: + filp_close(cprm.file, NULL); + fail_dropcount: + if (ispipe) +- atomic_dec(&core_dump_count); ++ atomic_dec_unchecked(&core_dump_count); + fail_unlock: + kfree(cn.corename); + fail_corename: +@@ -2260,7 +2641,7 @@ fail: + */ + int dump_write(struct file *file, const void *addr, int nr) + { +- return access_ok(VERIFY_READ, addr, nr) && file->f_op->write(file, addr, nr, &file->f_pos) == nr; ++ return access_ok(VERIFY_READ, addr, nr) && file->f_op->write(file, (const char __force_user *)addr, nr, &file->f_pos) == nr; + } + EXPORT_SYMBOL(dump_write); + +diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c +index a8cbe1b..fed04cb 100644 +--- a/fs/ext2/balloc.c ++++ b/fs/ext2/balloc.c +@@ -1192,7 +1192,7 @@ static int ext2_has_free_blocks(struct ext2_sb_info *sbi) + + free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter); + root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count); +- if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) && ++ if (free_blocks < root_blocks + 1 && !capable_nolog(CAP_SYS_RESOURCE) && + sbi->s_resuid != current_fsuid() && + (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) { + return 0; +diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c +index baac1b1..1499b62 100644 +--- a/fs/ext3/balloc.c ++++ b/fs/ext3/balloc.c +@@ -1438,9 +1438,10 @@ static int ext3_has_free_blocks(struct ext3_sb_info *sbi, int use_reservation) + + free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter); + root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count); +- if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) && ++ if (free_blocks < root_blocks + 1 && + !use_reservation && sbi->s_resuid != current_fsuid() && +- (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) { ++ (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid)) && ++ !capable_nolog(CAP_SYS_RESOURCE)) { + return 0; + } + return 1; +diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c +index 8da837b..ed3835b 100644 +--- a/fs/ext4/balloc.c ++++ b/fs/ext4/balloc.c +@@ -463,8 +463,8 @@ static int ext4_has_free_clusters(struct ext4_sb_info *sbi, + /* Hm, nope. Are (enough) root reserved clusters available? */ + if (sbi->s_resuid == current_fsuid() || + ((sbi->s_resgid != 0) && in_group_p(sbi->s_resgid)) || +- capable(CAP_SYS_RESOURCE) || +- (flags & EXT4_MB_USE_ROOT_BLOCKS)) { ++ (flags & EXT4_MB_USE_ROOT_BLOCKS) || ++ capable_nolog(CAP_SYS_RESOURCE)) { + + if (free_clusters >= (nclusters + dirty_clusters)) + return 1; +diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h +index 0e01e90..ae2bd5e 100644 +--- a/fs/ext4/ext4.h ++++ b/fs/ext4/ext4.h +@@ -1225,19 +1225,19 @@ struct ext4_sb_info { + unsigned long s_mb_last_start; + + /* stats for buddy allocator */ +- atomic_t s_bal_reqs; /* number of reqs with len > 1 */ +- atomic_t s_bal_success; /* we found long enough chunks */ +- atomic_t s_bal_allocated; /* in blocks */ +- atomic_t s_bal_ex_scanned; /* total extents scanned */ +- atomic_t s_bal_goals; /* goal hits */ +- atomic_t s_bal_breaks; /* too long searches */ +- atomic_t s_bal_2orders; /* 2^order hits */ ++ atomic_unchecked_t s_bal_reqs; /* number of reqs with len > 1 */ ++ atomic_unchecked_t s_bal_success; /* we found long enough chunks */ ++ atomic_unchecked_t s_bal_allocated; /* in blocks */ ++ atomic_unchecked_t s_bal_ex_scanned; /* total extents scanned */ ++ atomic_unchecked_t s_bal_goals; /* goal hits */ ++ atomic_unchecked_t s_bal_breaks; /* too long searches */ ++ atomic_unchecked_t s_bal_2orders; /* 2^order hits */ + spinlock_t s_bal_lock; + unsigned long s_mb_buddies_generated; + unsigned long long s_mb_generation_time; +- atomic_t s_mb_lost_chunks; +- atomic_t s_mb_preallocated; +- atomic_t s_mb_discarded; ++ atomic_unchecked_t s_mb_lost_chunks; ++ atomic_unchecked_t s_mb_preallocated; ++ atomic_unchecked_t s_mb_discarded; + atomic_t s_lock_busy; + + /* locality groups */ +diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c +index 1365903..9727522 100644 +--- a/fs/ext4/ioctl.c ++++ b/fs/ext4/ioctl.c +@@ -261,7 +261,6 @@ group_extend_out: + err = ext4_move_extents(filp, donor_filp, me.orig_start, + me.donor_start, me.len, &me.moved_len); + mnt_drop_write_file(filp); +- mnt_drop_write(filp->f_path.mnt); + + if (copy_to_user((struct move_extent __user *)arg, + &me, sizeof(me))) +diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c +index 6b0a57e..1955a44 100644 +--- a/fs/ext4/mballoc.c ++++ b/fs/ext4/mballoc.c +@@ -1747,7 +1747,7 @@ void ext4_mb_simple_scan_group(struct ext4_allocation_context *ac, + BUG_ON(ac->ac_b_ex.fe_len != ac->ac_g_ex.fe_len); + + if (EXT4_SB(sb)->s_mb_stats) +- atomic_inc(&EXT4_SB(sb)->s_bal_2orders); ++ atomic_inc_unchecked(&EXT4_SB(sb)->s_bal_2orders); + + break; + } +@@ -2041,7 +2041,7 @@ repeat: + ac->ac_status = AC_STATUS_CONTINUE; + ac->ac_flags |= EXT4_MB_HINT_FIRST; + cr = 3; +- atomic_inc(&sbi->s_mb_lost_chunks); ++ atomic_inc_unchecked(&sbi->s_mb_lost_chunks); + goto repeat; + } + } +@@ -2545,25 +2545,25 @@ int ext4_mb_release(struct super_block *sb) + if (sbi->s_mb_stats) { + ext4_msg(sb, KERN_INFO, + "mballoc: %u blocks %u reqs (%u success)", +- atomic_read(&sbi->s_bal_allocated), +- atomic_read(&sbi->s_bal_reqs), +- atomic_read(&sbi->s_bal_success)); ++ atomic_read_unchecked(&sbi->s_bal_allocated), ++ atomic_read_unchecked(&sbi->s_bal_reqs), ++ atomic_read_unchecked(&sbi->s_bal_success)); + ext4_msg(sb, KERN_INFO, + "mballoc: %u extents scanned, %u goal hits, " + "%u 2^N hits, %u breaks, %u lost", +- atomic_read(&sbi->s_bal_ex_scanned), +- atomic_read(&sbi->s_bal_goals), +- atomic_read(&sbi->s_bal_2orders), +- atomic_read(&sbi->s_bal_breaks), +- atomic_read(&sbi->s_mb_lost_chunks)); ++ atomic_read_unchecked(&sbi->s_bal_ex_scanned), ++ atomic_read_unchecked(&sbi->s_bal_goals), ++ atomic_read_unchecked(&sbi->s_bal_2orders), ++ atomic_read_unchecked(&sbi->s_bal_breaks), ++ atomic_read_unchecked(&sbi->s_mb_lost_chunks)); + ext4_msg(sb, KERN_INFO, + "mballoc: %lu generated and it took %Lu", + sbi->s_mb_buddies_generated, + sbi->s_mb_generation_time); + ext4_msg(sb, KERN_INFO, + "mballoc: %u preallocated, %u discarded", +- atomic_read(&sbi->s_mb_preallocated), +- atomic_read(&sbi->s_mb_discarded)); ++ atomic_read_unchecked(&sbi->s_mb_preallocated), ++ atomic_read_unchecked(&sbi->s_mb_discarded)); + } + + free_percpu(sbi->s_locality_groups); +@@ -3045,16 +3045,16 @@ static void ext4_mb_collect_stats(struct ext4_allocation_context *ac) + struct ext4_sb_info *sbi = EXT4_SB(ac->ac_sb); + + if (sbi->s_mb_stats && ac->ac_g_ex.fe_len > 1) { +- atomic_inc(&sbi->s_bal_reqs); +- atomic_add(ac->ac_b_ex.fe_len, &sbi->s_bal_allocated); ++ atomic_inc_unchecked(&sbi->s_bal_reqs); ++ atomic_add_unchecked(ac->ac_b_ex.fe_len, &sbi->s_bal_allocated); + if (ac->ac_b_ex.fe_len >= ac->ac_o_ex.fe_len) +- atomic_inc(&sbi->s_bal_success); +- atomic_add(ac->ac_found, &sbi->s_bal_ex_scanned); ++ atomic_inc_unchecked(&sbi->s_bal_success); ++ atomic_add_unchecked(ac->ac_found, &sbi->s_bal_ex_scanned); + if (ac->ac_g_ex.fe_start == ac->ac_b_ex.fe_start && + ac->ac_g_ex.fe_group == ac->ac_b_ex.fe_group) +- atomic_inc(&sbi->s_bal_goals); ++ atomic_inc_unchecked(&sbi->s_bal_goals); + if (ac->ac_found > sbi->s_mb_max_to_scan) +- atomic_inc(&sbi->s_bal_breaks); ++ atomic_inc_unchecked(&sbi->s_bal_breaks); + } + + if (ac->ac_op == EXT4_MB_HISTORY_ALLOC) +@@ -3458,7 +3458,7 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac) + trace_ext4_mb_new_inode_pa(ac, pa); + + ext4_mb_use_inode_pa(ac, pa); +- atomic_add(pa->pa_free, &sbi->s_mb_preallocated); ++ atomic_add_unchecked(pa->pa_free, &sbi->s_mb_preallocated); + + ei = EXT4_I(ac->ac_inode); + grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group); +@@ -3518,7 +3518,7 @@ ext4_mb_new_group_pa(struct ext4_allocation_context *ac) + trace_ext4_mb_new_group_pa(ac, pa); + + ext4_mb_use_group_pa(ac, pa); +- atomic_add(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated); ++ atomic_add_unchecked(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated); + + grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group); + lg = ac->ac_lg; +@@ -3607,7 +3607,7 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh, + * from the bitmap and continue. + */ + } +- atomic_add(free, &sbi->s_mb_discarded); ++ atomic_add_unchecked(free, &sbi->s_mb_discarded); + + return err; + } +@@ -3625,7 +3625,7 @@ ext4_mb_release_group_pa(struct ext4_buddy *e4b, + ext4_get_group_no_and_offset(sb, pa->pa_pstart, &group, &bit); + BUG_ON(group != e4b->bd_group && pa->pa_len != 0); + mb_free_blocks(pa->pa_inode, e4b, bit, pa->pa_len); +- atomic_add(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded); ++ atomic_add_unchecked(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded); + trace_ext4_mballoc_discard(sb, NULL, group, bit, pa->pa_len); + + return 0; +diff --git a/fs/fcntl.c b/fs/fcntl.c +index 75e7c1f..1eb3e4d 100644 +--- a/fs/fcntl.c ++++ b/fs/fcntl.c +@@ -224,6 +224,11 @@ int __f_setown(struct file *filp, struct pid *pid, enum pid_type type, + if (err) + return err; + ++ if (gr_handle_chroot_fowner(pid, type)) ++ return -ENOENT; ++ if (gr_check_protected_task_fowner(pid, type)) ++ return -EACCES; ++ + f_modown(filp, pid, type, force); + return 0; + } +@@ -266,7 +271,7 @@ pid_t f_getown(struct file *filp) + + static int f_setown_ex(struct file *filp, unsigned long arg) + { +- struct f_owner_ex * __user owner_p = (void * __user)arg; ++ struct f_owner_ex __user *owner_p = (void __user *)arg; + struct f_owner_ex owner; + struct pid *pid; + int type; +@@ -306,7 +311,7 @@ static int f_setown_ex(struct file *filp, unsigned long arg) + + static int f_getown_ex(struct file *filp, unsigned long arg) + { +- struct f_owner_ex * __user owner_p = (void * __user)arg; ++ struct f_owner_ex __user *owner_p = (void __user *)arg; + struct f_owner_ex owner; + int ret = 0; + +@@ -348,6 +353,7 @@ static long do_fcntl(int fd, unsigned int cmd, unsigned long arg, + switch (cmd) { + case F_DUPFD: + case F_DUPFD_CLOEXEC: ++ gr_learn_resource(current, RLIMIT_NOFILE, arg, 0); + if (arg >= rlimit(RLIMIT_NOFILE)) + break; + err = alloc_fd(arg, cmd == F_DUPFD_CLOEXEC ? O_CLOEXEC : 0); +diff --git a/fs/fifo.c b/fs/fifo.c +index cf6f434..3d7942c 100644 +--- a/fs/fifo.c ++++ b/fs/fifo.c +@@ -59,10 +59,10 @@ static int fifo_open(struct inode *inode, struct file *filp) + */ + filp->f_op = &read_pipefifo_fops; + pipe->r_counter++; +- if (pipe->readers++ == 0) ++ if (atomic_inc_return(&pipe->readers) == 1) + wake_up_partner(inode); + +- if (!pipe->writers) { ++ if (!atomic_read(&pipe->writers)) { + if ((filp->f_flags & O_NONBLOCK)) { + /* suppress POLLHUP until we have + * seen a writer */ +@@ -81,15 +81,15 @@ static int fifo_open(struct inode *inode, struct file *filp) + * errno=ENXIO when there is no process reading the FIFO. + */ + ret = -ENXIO; +- if ((filp->f_flags & O_NONBLOCK) && !pipe->readers) ++ if ((filp->f_flags & O_NONBLOCK) && !atomic_read(&pipe->readers)) + goto err; + + filp->f_op = &write_pipefifo_fops; + pipe->w_counter++; +- if (!pipe->writers++) ++ if (atomic_inc_return(&pipe->writers) == 1) + wake_up_partner(inode); + +- if (!pipe->readers) { ++ if (!atomic_read(&pipe->readers)) { + if (wait_for_partner(inode, &pipe->r_counter)) + goto err_wr; + } +@@ -104,11 +104,11 @@ static int fifo_open(struct inode *inode, struct file *filp) + */ + filp->f_op = &rdwr_pipefifo_fops; + +- pipe->readers++; +- pipe->writers++; ++ atomic_inc(&pipe->readers); ++ atomic_inc(&pipe->writers); + pipe->r_counter++; + pipe->w_counter++; +- if (pipe->readers == 1 || pipe->writers == 1) ++ if (atomic_read(&pipe->readers) == 1 || atomic_read(&pipe->writers) == 1) + wake_up_partner(inode); + break; + +@@ -122,19 +122,19 @@ static int fifo_open(struct inode *inode, struct file *filp) + return 0; + + err_rd: +- if (!--pipe->readers) ++ if (atomic_dec_and_test(&pipe->readers)) + wake_up_interruptible(&pipe->wait); + ret = -ERESTARTSYS; + goto err; + + err_wr: +- if (!--pipe->writers) ++ if (atomic_dec_and_test(&pipe->writers)) + wake_up_interruptible(&pipe->wait); + ret = -ERESTARTSYS; + goto err; + + err: +- if (!pipe->readers && !pipe->writers) ++ if (!atomic_read(&pipe->readers) && !atomic_read(&pipe->writers)) + free_pipe_info(inode); + + err_nocleanup: +diff --git a/fs/file.c b/fs/file.c +index ba3f605..fade102 100644 +--- a/fs/file.c ++++ b/fs/file.c +@@ -15,6 +15,7 @@ + #include <linux/slab.h> + #include <linux/vmalloc.h> + #include <linux/file.h> ++#include <linux/security.h> + #include <linux/fdtable.h> + #include <linux/bitops.h> + #include <linux/interrupt.h> +@@ -255,6 +256,7 @@ int expand_files(struct files_struct *files, int nr) + * N.B. For clone tasks sharing a files structure, this test + * will limit the total number of files that can be opened. + */ ++ gr_learn_resource(current, RLIMIT_NOFILE, nr, 0); + if (nr >= rlimit(RLIMIT_NOFILE)) + return -EMFILE; + +diff --git a/fs/filesystems.c b/fs/filesystems.c +index 96f2428..f5eeb8e 100644 +--- a/fs/filesystems.c ++++ b/fs/filesystems.c +@@ -273,7 +273,12 @@ struct file_system_type *get_fs_type(const char *name) + int len = dot ? dot - name : strlen(name); + + fs = __get_fs_type(name, len); ++ ++#ifdef CONFIG_GRKERNSEC_MODHARDEN ++ if (!fs && (___request_module(true, "grsec_modharden_fs", "%.*s", len, name) == 0)) ++#else + if (!fs && (request_module("%.*s", len, name) == 0)) ++#endif + fs = __get_fs_type(name, len); + + if (dot && fs && !(fs->fs_flags & FS_HAS_SUBTYPE)) { +diff --git a/fs/fs_struct.c b/fs/fs_struct.c +index e159e68..e7d2a6f 100644 +--- a/fs/fs_struct.c ++++ b/fs/fs_struct.c +@@ -4,6 +4,7 @@ + #include <linux/path.h> + #include <linux/slab.h> + #include <linux/fs_struct.h> ++#include <linux/grsecurity.h> + #include "internal.h" + + static inline void path_get_longterm(struct path *path) +@@ -31,6 +32,7 @@ void set_fs_root(struct fs_struct *fs, struct path *path) + write_seqcount_begin(&fs->seq); + old_root = fs->root; + fs->root = *path; ++ gr_set_chroot_entries(current, path); + write_seqcount_end(&fs->seq); + spin_unlock(&fs->lock); + if (old_root.dentry) +@@ -65,6 +67,17 @@ static inline int replace_path(struct path *p, const struct path *old, const str + return 1; + } + ++static inline int replace_root_path(struct task_struct *task, struct path *p, const struct path *old, struct path *new) ++{ ++ if (likely(p->dentry != old->dentry || p->mnt != old->mnt)) ++ return 0; ++ *p = *new; ++ ++ gr_set_chroot_entries(task, new); ++ ++ return 1; ++} ++ + void chroot_fs_refs(struct path *old_root, struct path *new_root) + { + struct task_struct *g, *p; +@@ -79,7 +92,7 @@ void chroot_fs_refs(struct path *old_root, struct path *new_root) + int hits = 0; + spin_lock(&fs->lock); + write_seqcount_begin(&fs->seq); +- hits += replace_path(&fs->root, old_root, new_root); ++ hits += replace_root_path(p, &fs->root, old_root, new_root); + hits += replace_path(&fs->pwd, old_root, new_root); + write_seqcount_end(&fs->seq); + while (hits--) { +@@ -111,7 +124,8 @@ void exit_fs(struct task_struct *tsk) + task_lock(tsk); + spin_lock(&fs->lock); + tsk->fs = NULL; +- kill = !--fs->users; ++ gr_clear_chroot_entries(tsk); ++ kill = !atomic_dec_return(&fs->users); + spin_unlock(&fs->lock); + task_unlock(tsk); + if (kill) +@@ -124,7 +138,7 @@ struct fs_struct *copy_fs_struct(struct fs_struct *old) + struct fs_struct *fs = kmem_cache_alloc(fs_cachep, GFP_KERNEL); + /* We don't need to lock fs - think why ;-) */ + if (fs) { +- fs->users = 1; ++ atomic_set(&fs->users, 1); + fs->in_exec = 0; + spin_lock_init(&fs->lock); + seqcount_init(&fs->seq); +@@ -133,6 +147,9 @@ struct fs_struct *copy_fs_struct(struct fs_struct *old) + spin_lock(&old->lock); + fs->root = old->root; + path_get_longterm(&fs->root); ++ /* instead of calling gr_set_chroot_entries here, ++ we call it from every caller of this function ++ */ + fs->pwd = old->pwd; + path_get_longterm(&fs->pwd); + spin_unlock(&old->lock); +@@ -151,8 +168,9 @@ int unshare_fs_struct(void) + + task_lock(current); + spin_lock(&fs->lock); +- kill = !--fs->users; ++ kill = !atomic_dec_return(&fs->users); + current->fs = new_fs; ++ gr_set_chroot_entries(current, &new_fs->root); + spin_unlock(&fs->lock); + task_unlock(current); + +@@ -165,13 +183,13 @@ EXPORT_SYMBOL_GPL(unshare_fs_struct); + + int current_umask(void) + { +- return current->fs->umask; ++ return current->fs->umask | gr_acl_umask(); + } + EXPORT_SYMBOL(current_umask); + + /* to be mentioned only in INIT_TASK */ + struct fs_struct init_fs = { +- .users = 1, ++ .users = ATOMIC_INIT(1), + .lock = __SPIN_LOCK_UNLOCKED(init_fs.lock), + .seq = SEQCNT_ZERO, + .umask = 0022, +@@ -187,12 +205,13 @@ void daemonize_fs_struct(void) + task_lock(current); + + spin_lock(&init_fs.lock); +- init_fs.users++; ++ atomic_inc(&init_fs.users); + spin_unlock(&init_fs.lock); + + spin_lock(&fs->lock); + current->fs = &init_fs; +- kill = !--fs->users; ++ gr_set_chroot_entries(current, &current->fs->root); ++ kill = !atomic_dec_return(&fs->users); + spin_unlock(&fs->lock); + + task_unlock(current); +diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c +index 9905350..02eaec4 100644 +--- a/fs/fscache/cookie.c ++++ b/fs/fscache/cookie.c +@@ -68,11 +68,11 @@ struct fscache_cookie *__fscache_acquire_cookie( + parent ? (char *) parent->def->name : "<no-parent>", + def->name, netfs_data); + +- fscache_stat(&fscache_n_acquires); ++ fscache_stat_unchecked(&fscache_n_acquires); + + /* if there's no parent cookie, then we don't create one here either */ + if (!parent) { +- fscache_stat(&fscache_n_acquires_null); ++ fscache_stat_unchecked(&fscache_n_acquires_null); + _leave(" [no parent]"); + return NULL; + } +@@ -87,7 +87,7 @@ struct fscache_cookie *__fscache_acquire_cookie( + /* allocate and initialise a cookie */ + cookie = kmem_cache_alloc(fscache_cookie_jar, GFP_KERNEL); + if (!cookie) { +- fscache_stat(&fscache_n_acquires_oom); ++ fscache_stat_unchecked(&fscache_n_acquires_oom); + _leave(" [ENOMEM]"); + return NULL; + } +@@ -109,13 +109,13 @@ struct fscache_cookie *__fscache_acquire_cookie( + + switch (cookie->def->type) { + case FSCACHE_COOKIE_TYPE_INDEX: +- fscache_stat(&fscache_n_cookie_index); ++ fscache_stat_unchecked(&fscache_n_cookie_index); + break; + case FSCACHE_COOKIE_TYPE_DATAFILE: +- fscache_stat(&fscache_n_cookie_data); ++ fscache_stat_unchecked(&fscache_n_cookie_data); + break; + default: +- fscache_stat(&fscache_n_cookie_special); ++ fscache_stat_unchecked(&fscache_n_cookie_special); + break; + } + +@@ -126,13 +126,13 @@ struct fscache_cookie *__fscache_acquire_cookie( + if (fscache_acquire_non_index_cookie(cookie) < 0) { + atomic_dec(&parent->n_children); + __fscache_cookie_put(cookie); +- fscache_stat(&fscache_n_acquires_nobufs); ++ fscache_stat_unchecked(&fscache_n_acquires_nobufs); + _leave(" = NULL"); + return NULL; + } + } + +- fscache_stat(&fscache_n_acquires_ok); ++ fscache_stat_unchecked(&fscache_n_acquires_ok); + _leave(" = %p", cookie); + return cookie; + } +@@ -168,7 +168,7 @@ static int fscache_acquire_non_index_cookie(struct fscache_cookie *cookie) + cache = fscache_select_cache_for_object(cookie->parent); + if (!cache) { + up_read(&fscache_addremove_sem); +- fscache_stat(&fscache_n_acquires_no_cache); ++ fscache_stat_unchecked(&fscache_n_acquires_no_cache); + _leave(" = -ENOMEDIUM [no cache]"); + return -ENOMEDIUM; + } +@@ -256,12 +256,12 @@ static int fscache_alloc_object(struct fscache_cache *cache, + object = cache->ops->alloc_object(cache, cookie); + fscache_stat_d(&fscache_n_cop_alloc_object); + if (IS_ERR(object)) { +- fscache_stat(&fscache_n_object_no_alloc); ++ fscache_stat_unchecked(&fscache_n_object_no_alloc); + ret = PTR_ERR(object); + goto error; + } + +- fscache_stat(&fscache_n_object_alloc); ++ fscache_stat_unchecked(&fscache_n_object_alloc); + + object->debug_id = atomic_inc_return(&fscache_object_debug_id); + +@@ -377,10 +377,10 @@ void __fscache_update_cookie(struct fscache_cookie *cookie) + struct fscache_object *object; + struct hlist_node *_p; + +- fscache_stat(&fscache_n_updates); ++ fscache_stat_unchecked(&fscache_n_updates); + + if (!cookie) { +- fscache_stat(&fscache_n_updates_null); ++ fscache_stat_unchecked(&fscache_n_updates_null); + _leave(" [no cookie]"); + return; + } +@@ -414,12 +414,12 @@ void __fscache_relinquish_cookie(struct fscache_cookie *cookie, int retire) + struct fscache_object *object; + unsigned long event; + +- fscache_stat(&fscache_n_relinquishes); ++ fscache_stat_unchecked(&fscache_n_relinquishes); + if (retire) +- fscache_stat(&fscache_n_relinquishes_retire); ++ fscache_stat_unchecked(&fscache_n_relinquishes_retire); + + if (!cookie) { +- fscache_stat(&fscache_n_relinquishes_null); ++ fscache_stat_unchecked(&fscache_n_relinquishes_null); + _leave(" [no cookie]"); + return; + } +@@ -435,7 +435,7 @@ void __fscache_relinquish_cookie(struct fscache_cookie *cookie, int retire) + + /* wait for the cookie to finish being instantiated (or to fail) */ + if (test_bit(FSCACHE_COOKIE_CREATING, &cookie->flags)) { +- fscache_stat(&fscache_n_relinquishes_waitcrt); ++ fscache_stat_unchecked(&fscache_n_relinquishes_waitcrt); + wait_on_bit(&cookie->flags, FSCACHE_COOKIE_CREATING, + fscache_wait_bit, TASK_UNINTERRUPTIBLE); + } +diff --git a/fs/fscache/internal.h b/fs/fscache/internal.h +index f6aad48..88dcf26 100644 +--- a/fs/fscache/internal.h ++++ b/fs/fscache/internal.h +@@ -144,94 +144,94 @@ extern void fscache_proc_cleanup(void); + extern atomic_t fscache_n_ops_processed[FSCACHE_MAX_THREADS]; + extern atomic_t fscache_n_objs_processed[FSCACHE_MAX_THREADS]; + +-extern atomic_t fscache_n_op_pend; +-extern atomic_t fscache_n_op_run; +-extern atomic_t fscache_n_op_enqueue; +-extern atomic_t fscache_n_op_deferred_release; +-extern atomic_t fscache_n_op_release; +-extern atomic_t fscache_n_op_gc; +-extern atomic_t fscache_n_op_cancelled; +-extern atomic_t fscache_n_op_rejected; ++extern atomic_unchecked_t fscache_n_op_pend; ++extern atomic_unchecked_t fscache_n_op_run; ++extern atomic_unchecked_t fscache_n_op_enqueue; ++extern atomic_unchecked_t fscache_n_op_deferred_release; ++extern atomic_unchecked_t fscache_n_op_release; ++extern atomic_unchecked_t fscache_n_op_gc; ++extern atomic_unchecked_t fscache_n_op_cancelled; ++extern atomic_unchecked_t fscache_n_op_rejected; + +-extern atomic_t fscache_n_attr_changed; +-extern atomic_t fscache_n_attr_changed_ok; +-extern atomic_t fscache_n_attr_changed_nobufs; +-extern atomic_t fscache_n_attr_changed_nomem; +-extern atomic_t fscache_n_attr_changed_calls; ++extern atomic_unchecked_t fscache_n_attr_changed; ++extern atomic_unchecked_t fscache_n_attr_changed_ok; ++extern atomic_unchecked_t fscache_n_attr_changed_nobufs; ++extern atomic_unchecked_t fscache_n_attr_changed_nomem; ++extern atomic_unchecked_t fscache_n_attr_changed_calls; + +-extern atomic_t fscache_n_allocs; +-extern atomic_t fscache_n_allocs_ok; +-extern atomic_t fscache_n_allocs_wait; +-extern atomic_t fscache_n_allocs_nobufs; +-extern atomic_t fscache_n_allocs_intr; +-extern atomic_t fscache_n_allocs_object_dead; +-extern atomic_t fscache_n_alloc_ops; +-extern atomic_t fscache_n_alloc_op_waits; ++extern atomic_unchecked_t fscache_n_allocs; ++extern atomic_unchecked_t fscache_n_allocs_ok; ++extern atomic_unchecked_t fscache_n_allocs_wait; ++extern atomic_unchecked_t fscache_n_allocs_nobufs; ++extern atomic_unchecked_t fscache_n_allocs_intr; ++extern atomic_unchecked_t fscache_n_allocs_object_dead; ++extern atomic_unchecked_t fscache_n_alloc_ops; ++extern atomic_unchecked_t fscache_n_alloc_op_waits; + +-extern atomic_t fscache_n_retrievals; +-extern atomic_t fscache_n_retrievals_ok; +-extern atomic_t fscache_n_retrievals_wait; +-extern atomic_t fscache_n_retrievals_nodata; +-extern atomic_t fscache_n_retrievals_nobufs; +-extern atomic_t fscache_n_retrievals_intr; +-extern atomic_t fscache_n_retrievals_nomem; +-extern atomic_t fscache_n_retrievals_object_dead; +-extern atomic_t fscache_n_retrieval_ops; +-extern atomic_t fscache_n_retrieval_op_waits; ++extern atomic_unchecked_t fscache_n_retrievals; ++extern atomic_unchecked_t fscache_n_retrievals_ok; ++extern atomic_unchecked_t fscache_n_retrievals_wait; ++extern atomic_unchecked_t fscache_n_retrievals_nodata; ++extern atomic_unchecked_t fscache_n_retrievals_nobufs; ++extern atomic_unchecked_t fscache_n_retrievals_intr; ++extern atomic_unchecked_t fscache_n_retrievals_nomem; ++extern atomic_unchecked_t fscache_n_retrievals_object_dead; ++extern atomic_unchecked_t fscache_n_retrieval_ops; ++extern atomic_unchecked_t fscache_n_retrieval_op_waits; + +-extern atomic_t fscache_n_stores; +-extern atomic_t fscache_n_stores_ok; +-extern atomic_t fscache_n_stores_again; +-extern atomic_t fscache_n_stores_nobufs; +-extern atomic_t fscache_n_stores_oom; +-extern atomic_t fscache_n_store_ops; +-extern atomic_t fscache_n_store_calls; +-extern atomic_t fscache_n_store_pages; +-extern atomic_t fscache_n_store_radix_deletes; +-extern atomic_t fscache_n_store_pages_over_limit; ++extern atomic_unchecked_t fscache_n_stores; ++extern atomic_unchecked_t fscache_n_stores_ok; ++extern atomic_unchecked_t fscache_n_stores_again; ++extern atomic_unchecked_t fscache_n_stores_nobufs; ++extern atomic_unchecked_t fscache_n_stores_oom; ++extern atomic_unchecked_t fscache_n_store_ops; ++extern atomic_unchecked_t fscache_n_store_calls; ++extern atomic_unchecked_t fscache_n_store_pages; ++extern atomic_unchecked_t fscache_n_store_radix_deletes; ++extern atomic_unchecked_t fscache_n_store_pages_over_limit; + +-extern atomic_t fscache_n_store_vmscan_not_storing; +-extern atomic_t fscache_n_store_vmscan_gone; +-extern atomic_t fscache_n_store_vmscan_busy; +-extern atomic_t fscache_n_store_vmscan_cancelled; ++extern atomic_unchecked_t fscache_n_store_vmscan_not_storing; ++extern atomic_unchecked_t fscache_n_store_vmscan_gone; ++extern atomic_unchecked_t fscache_n_store_vmscan_busy; ++extern atomic_unchecked_t fscache_n_store_vmscan_cancelled; + +-extern atomic_t fscache_n_marks; +-extern atomic_t fscache_n_uncaches; ++extern atomic_unchecked_t fscache_n_marks; ++extern atomic_unchecked_t fscache_n_uncaches; + +-extern atomic_t fscache_n_acquires; +-extern atomic_t fscache_n_acquires_null; +-extern atomic_t fscache_n_acquires_no_cache; +-extern atomic_t fscache_n_acquires_ok; +-extern atomic_t fscache_n_acquires_nobufs; +-extern atomic_t fscache_n_acquires_oom; ++extern atomic_unchecked_t fscache_n_acquires; ++extern atomic_unchecked_t fscache_n_acquires_null; ++extern atomic_unchecked_t fscache_n_acquires_no_cache; ++extern atomic_unchecked_t fscache_n_acquires_ok; ++extern atomic_unchecked_t fscache_n_acquires_nobufs; ++extern atomic_unchecked_t fscache_n_acquires_oom; + +-extern atomic_t fscache_n_updates; +-extern atomic_t fscache_n_updates_null; +-extern atomic_t fscache_n_updates_run; ++extern atomic_unchecked_t fscache_n_updates; ++extern atomic_unchecked_t fscache_n_updates_null; ++extern atomic_unchecked_t fscache_n_updates_run; + +-extern atomic_t fscache_n_relinquishes; +-extern atomic_t fscache_n_relinquishes_null; +-extern atomic_t fscache_n_relinquishes_waitcrt; +-extern atomic_t fscache_n_relinquishes_retire; ++extern atomic_unchecked_t fscache_n_relinquishes; ++extern atomic_unchecked_t fscache_n_relinquishes_null; ++extern atomic_unchecked_t fscache_n_relinquishes_waitcrt; ++extern atomic_unchecked_t fscache_n_relinquishes_retire; + +-extern atomic_t fscache_n_cookie_index; +-extern atomic_t fscache_n_cookie_data; +-extern atomic_t fscache_n_cookie_special; ++extern atomic_unchecked_t fscache_n_cookie_index; ++extern atomic_unchecked_t fscache_n_cookie_data; ++extern atomic_unchecked_t fscache_n_cookie_special; + +-extern atomic_t fscache_n_object_alloc; +-extern atomic_t fscache_n_object_no_alloc; +-extern atomic_t fscache_n_object_lookups; +-extern atomic_t fscache_n_object_lookups_negative; +-extern atomic_t fscache_n_object_lookups_positive; +-extern atomic_t fscache_n_object_lookups_timed_out; +-extern atomic_t fscache_n_object_created; +-extern atomic_t fscache_n_object_avail; +-extern atomic_t fscache_n_object_dead; ++extern atomic_unchecked_t fscache_n_object_alloc; ++extern atomic_unchecked_t fscache_n_object_no_alloc; ++extern atomic_unchecked_t fscache_n_object_lookups; ++extern atomic_unchecked_t fscache_n_object_lookups_negative; ++extern atomic_unchecked_t fscache_n_object_lookups_positive; ++extern atomic_unchecked_t fscache_n_object_lookups_timed_out; ++extern atomic_unchecked_t fscache_n_object_created; ++extern atomic_unchecked_t fscache_n_object_avail; ++extern atomic_unchecked_t fscache_n_object_dead; + +-extern atomic_t fscache_n_checkaux_none; +-extern atomic_t fscache_n_checkaux_okay; +-extern atomic_t fscache_n_checkaux_update; +-extern atomic_t fscache_n_checkaux_obsolete; ++extern atomic_unchecked_t fscache_n_checkaux_none; ++extern atomic_unchecked_t fscache_n_checkaux_okay; ++extern atomic_unchecked_t fscache_n_checkaux_update; ++extern atomic_unchecked_t fscache_n_checkaux_obsolete; + + extern atomic_t fscache_n_cop_alloc_object; + extern atomic_t fscache_n_cop_lookup_object; +@@ -255,6 +255,11 @@ static inline void fscache_stat(atomic_t *stat) + atomic_inc(stat); + } + ++static inline void fscache_stat_unchecked(atomic_unchecked_t *stat) ++{ ++ atomic_inc_unchecked(stat); ++} ++ + static inline void fscache_stat_d(atomic_t *stat) + { + atomic_dec(stat); +@@ -267,6 +272,7 @@ extern const struct file_operations fscache_stats_fops; + + #define __fscache_stat(stat) (NULL) + #define fscache_stat(stat) do {} while (0) ++#define fscache_stat_unchecked(stat) do {} while (0) + #define fscache_stat_d(stat) do {} while (0) + #endif + +diff --git a/fs/fscache/object.c b/fs/fscache/object.c +index b6b897c..0ffff9c 100644 +--- a/fs/fscache/object.c ++++ b/fs/fscache/object.c +@@ -128,7 +128,7 @@ static void fscache_object_state_machine(struct fscache_object *object) + /* update the object metadata on disk */ + case FSCACHE_OBJECT_UPDATING: + clear_bit(FSCACHE_OBJECT_EV_UPDATE, &object->events); +- fscache_stat(&fscache_n_updates_run); ++ fscache_stat_unchecked(&fscache_n_updates_run); + fscache_stat(&fscache_n_cop_update_object); + object->cache->ops->update_object(object); + fscache_stat_d(&fscache_n_cop_update_object); +@@ -217,7 +217,7 @@ static void fscache_object_state_machine(struct fscache_object *object) + spin_lock(&object->lock); + object->state = FSCACHE_OBJECT_DEAD; + spin_unlock(&object->lock); +- fscache_stat(&fscache_n_object_dead); ++ fscache_stat_unchecked(&fscache_n_object_dead); + goto terminal_transit; + + /* handle the parent cache of this object being withdrawn from +@@ -232,7 +232,7 @@ static void fscache_object_state_machine(struct fscache_object *object) + spin_lock(&object->lock); + object->state = FSCACHE_OBJECT_DEAD; + spin_unlock(&object->lock); +- fscache_stat(&fscache_n_object_dead); ++ fscache_stat_unchecked(&fscache_n_object_dead); + goto terminal_transit; + + /* complain about the object being woken up once it is +@@ -461,7 +461,7 @@ static void fscache_lookup_object(struct fscache_object *object) + parent->cookie->def->name, cookie->def->name, + object->cache->tag->name); + +- fscache_stat(&fscache_n_object_lookups); ++ fscache_stat_unchecked(&fscache_n_object_lookups); + fscache_stat(&fscache_n_cop_lookup_object); + ret = object->cache->ops->lookup_object(object); + fscache_stat_d(&fscache_n_cop_lookup_object); +@@ -472,7 +472,7 @@ static void fscache_lookup_object(struct fscache_object *object) + if (ret == -ETIMEDOUT) { + /* probably stuck behind another object, so move this one to + * the back of the queue */ +- fscache_stat(&fscache_n_object_lookups_timed_out); ++ fscache_stat_unchecked(&fscache_n_object_lookups_timed_out); + set_bit(FSCACHE_OBJECT_EV_REQUEUE, &object->events); + } + +@@ -495,7 +495,7 @@ void fscache_object_lookup_negative(struct fscache_object *object) + + spin_lock(&object->lock); + if (object->state == FSCACHE_OBJECT_LOOKING_UP) { +- fscache_stat(&fscache_n_object_lookups_negative); ++ fscache_stat_unchecked(&fscache_n_object_lookups_negative); + + /* transit here to allow write requests to begin stacking up + * and read requests to begin returning ENODATA */ +@@ -541,7 +541,7 @@ void fscache_obtained_object(struct fscache_object *object) + * result, in which case there may be data available */ + spin_lock(&object->lock); + if (object->state == FSCACHE_OBJECT_LOOKING_UP) { +- fscache_stat(&fscache_n_object_lookups_positive); ++ fscache_stat_unchecked(&fscache_n_object_lookups_positive); + + clear_bit(FSCACHE_COOKIE_NO_DATA_YET, &cookie->flags); + +@@ -555,7 +555,7 @@ void fscache_obtained_object(struct fscache_object *object) + set_bit(FSCACHE_OBJECT_EV_REQUEUE, &object->events); + } else { + ASSERTCMP(object->state, ==, FSCACHE_OBJECT_CREATING); +- fscache_stat(&fscache_n_object_created); ++ fscache_stat_unchecked(&fscache_n_object_created); + + object->state = FSCACHE_OBJECT_AVAILABLE; + spin_unlock(&object->lock); +@@ -602,7 +602,7 @@ static void fscache_object_available(struct fscache_object *object) + fscache_enqueue_dependents(object); + + fscache_hist(fscache_obj_instantiate_histogram, object->lookup_jif); +- fscache_stat(&fscache_n_object_avail); ++ fscache_stat_unchecked(&fscache_n_object_avail); + + _leave(""); + } +@@ -861,7 +861,7 @@ enum fscache_checkaux fscache_check_aux(struct fscache_object *object, + enum fscache_checkaux result; + + if (!object->cookie->def->check_aux) { +- fscache_stat(&fscache_n_checkaux_none); ++ fscache_stat_unchecked(&fscache_n_checkaux_none); + return FSCACHE_CHECKAUX_OKAY; + } + +@@ -870,17 +870,17 @@ enum fscache_checkaux fscache_check_aux(struct fscache_object *object, + switch (result) { + /* entry okay as is */ + case FSCACHE_CHECKAUX_OKAY: +- fscache_stat(&fscache_n_checkaux_okay); ++ fscache_stat_unchecked(&fscache_n_checkaux_okay); + break; + + /* entry requires update */ + case FSCACHE_CHECKAUX_NEEDS_UPDATE: +- fscache_stat(&fscache_n_checkaux_update); ++ fscache_stat_unchecked(&fscache_n_checkaux_update); + break; + + /* entry requires deletion */ + case FSCACHE_CHECKAUX_OBSOLETE: +- fscache_stat(&fscache_n_checkaux_obsolete); ++ fscache_stat_unchecked(&fscache_n_checkaux_obsolete); + break; + + default: +diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c +index 30afdfa..2256596 100644 +--- a/fs/fscache/operation.c ++++ b/fs/fscache/operation.c +@@ -17,7 +17,7 @@ + #include <linux/slab.h> + #include "internal.h" + +-atomic_t fscache_op_debug_id; ++atomic_unchecked_t fscache_op_debug_id; + EXPORT_SYMBOL(fscache_op_debug_id); + + /** +@@ -38,7 +38,7 @@ void fscache_enqueue_operation(struct fscache_operation *op) + ASSERTCMP(op->object->state, >=, FSCACHE_OBJECT_AVAILABLE); + ASSERTCMP(atomic_read(&op->usage), >, 0); + +- fscache_stat(&fscache_n_op_enqueue); ++ fscache_stat_unchecked(&fscache_n_op_enqueue); + switch (op->flags & FSCACHE_OP_TYPE) { + case FSCACHE_OP_ASYNC: + _debug("queue async"); +@@ -69,7 +69,7 @@ static void fscache_run_op(struct fscache_object *object, + wake_up_bit(&op->flags, FSCACHE_OP_WAITING); + if (op->processor) + fscache_enqueue_operation(op); +- fscache_stat(&fscache_n_op_run); ++ fscache_stat_unchecked(&fscache_n_op_run); + } + + /* +@@ -98,11 +98,11 @@ int fscache_submit_exclusive_op(struct fscache_object *object, + if (object->n_ops > 1) { + atomic_inc(&op->usage); + list_add_tail(&op->pend_link, &object->pending_ops); +- fscache_stat(&fscache_n_op_pend); ++ fscache_stat_unchecked(&fscache_n_op_pend); + } else if (!list_empty(&object->pending_ops)) { + atomic_inc(&op->usage); + list_add_tail(&op->pend_link, &object->pending_ops); +- fscache_stat(&fscache_n_op_pend); ++ fscache_stat_unchecked(&fscache_n_op_pend); + fscache_start_operations(object); + } else { + ASSERTCMP(object->n_in_progress, ==, 0); +@@ -118,7 +118,7 @@ int fscache_submit_exclusive_op(struct fscache_object *object, + object->n_exclusive++; /* reads and writes must wait */ + atomic_inc(&op->usage); + list_add_tail(&op->pend_link, &object->pending_ops); +- fscache_stat(&fscache_n_op_pend); ++ fscache_stat_unchecked(&fscache_n_op_pend); + ret = 0; + } else { + /* not allowed to submit ops in any other state */ +@@ -203,11 +203,11 @@ int fscache_submit_op(struct fscache_object *object, + if (object->n_exclusive > 0) { + atomic_inc(&op->usage); + list_add_tail(&op->pend_link, &object->pending_ops); +- fscache_stat(&fscache_n_op_pend); ++ fscache_stat_unchecked(&fscache_n_op_pend); + } else if (!list_empty(&object->pending_ops)) { + atomic_inc(&op->usage); + list_add_tail(&op->pend_link, &object->pending_ops); +- fscache_stat(&fscache_n_op_pend); ++ fscache_stat_unchecked(&fscache_n_op_pend); + fscache_start_operations(object); + } else { + ASSERTCMP(object->n_exclusive, ==, 0); +@@ -219,12 +219,12 @@ int fscache_submit_op(struct fscache_object *object, + object->n_ops++; + atomic_inc(&op->usage); + list_add_tail(&op->pend_link, &object->pending_ops); +- fscache_stat(&fscache_n_op_pend); ++ fscache_stat_unchecked(&fscache_n_op_pend); + ret = 0; + } else if (object->state == FSCACHE_OBJECT_DYING || + object->state == FSCACHE_OBJECT_LC_DYING || + object->state == FSCACHE_OBJECT_WITHDRAWING) { +- fscache_stat(&fscache_n_op_rejected); ++ fscache_stat_unchecked(&fscache_n_op_rejected); + ret = -ENOBUFS; + } else if (!test_bit(FSCACHE_IOERROR, &object->cache->flags)) { + fscache_report_unexpected_submission(object, op, ostate); +@@ -294,7 +294,7 @@ int fscache_cancel_op(struct fscache_operation *op) + + ret = -EBUSY; + if (!list_empty(&op->pend_link)) { +- fscache_stat(&fscache_n_op_cancelled); ++ fscache_stat_unchecked(&fscache_n_op_cancelled); + list_del_init(&op->pend_link); + object->n_ops--; + if (test_bit(FSCACHE_OP_EXCLUSIVE, &op->flags)) +@@ -331,7 +331,7 @@ void fscache_put_operation(struct fscache_operation *op) + if (test_and_set_bit(FSCACHE_OP_DEAD, &op->flags)) + BUG(); + +- fscache_stat(&fscache_n_op_release); ++ fscache_stat_unchecked(&fscache_n_op_release); + + if (op->release) { + op->release(op); +@@ -348,7 +348,7 @@ void fscache_put_operation(struct fscache_operation *op) + * lock, and defer it otherwise */ + if (!spin_trylock(&object->lock)) { + _debug("defer put"); +- fscache_stat(&fscache_n_op_deferred_release); ++ fscache_stat_unchecked(&fscache_n_op_deferred_release); + + cache = object->cache; + spin_lock(&cache->op_gc_list_lock); +@@ -410,7 +410,7 @@ void fscache_operation_gc(struct work_struct *work) + + _debug("GC DEFERRED REL OBJ%x OP%x", + object->debug_id, op->debug_id); +- fscache_stat(&fscache_n_op_gc); ++ fscache_stat_unchecked(&fscache_n_op_gc); + + ASSERTCMP(atomic_read(&op->usage), ==, 0); + +diff --git a/fs/fscache/page.c b/fs/fscache/page.c +index 3f7a59b..cf196cc 100644 +--- a/fs/fscache/page.c ++++ b/fs/fscache/page.c +@@ -60,7 +60,7 @@ bool __fscache_maybe_release_page(struct fscache_cookie *cookie, + val = radix_tree_lookup(&cookie->stores, page->index); + if (!val) { + rcu_read_unlock(); +- fscache_stat(&fscache_n_store_vmscan_not_storing); ++ fscache_stat_unchecked(&fscache_n_store_vmscan_not_storing); + __fscache_uncache_page(cookie, page); + return true; + } +@@ -90,11 +90,11 @@ bool __fscache_maybe_release_page(struct fscache_cookie *cookie, + spin_unlock(&cookie->stores_lock); + + if (xpage) { +- fscache_stat(&fscache_n_store_vmscan_cancelled); +- fscache_stat(&fscache_n_store_radix_deletes); ++ fscache_stat_unchecked(&fscache_n_store_vmscan_cancelled); ++ fscache_stat_unchecked(&fscache_n_store_radix_deletes); + ASSERTCMP(xpage, ==, page); + } else { +- fscache_stat(&fscache_n_store_vmscan_gone); ++ fscache_stat_unchecked(&fscache_n_store_vmscan_gone); + } + + wake_up_bit(&cookie->flags, 0); +@@ -107,7 +107,7 @@ page_busy: + /* we might want to wait here, but that could deadlock the allocator as + * the work threads writing to the cache may all end up sleeping + * on memory allocation */ +- fscache_stat(&fscache_n_store_vmscan_busy); ++ fscache_stat_unchecked(&fscache_n_store_vmscan_busy); + return false; + } + EXPORT_SYMBOL(__fscache_maybe_release_page); +@@ -131,7 +131,7 @@ static void fscache_end_page_write(struct fscache_object *object, + FSCACHE_COOKIE_STORING_TAG); + if (!radix_tree_tag_get(&cookie->stores, page->index, + FSCACHE_COOKIE_PENDING_TAG)) { +- fscache_stat(&fscache_n_store_radix_deletes); ++ fscache_stat_unchecked(&fscache_n_store_radix_deletes); + xpage = radix_tree_delete(&cookie->stores, page->index); + } + spin_unlock(&cookie->stores_lock); +@@ -152,7 +152,7 @@ static void fscache_attr_changed_op(struct fscache_operation *op) + + _enter("{OBJ%x OP%x}", object->debug_id, op->debug_id); + +- fscache_stat(&fscache_n_attr_changed_calls); ++ fscache_stat_unchecked(&fscache_n_attr_changed_calls); + + if (fscache_object_is_active(object)) { + fscache_stat(&fscache_n_cop_attr_changed); +@@ -177,11 +177,11 @@ int __fscache_attr_changed(struct fscache_cookie *cookie) + + ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX); + +- fscache_stat(&fscache_n_attr_changed); ++ fscache_stat_unchecked(&fscache_n_attr_changed); + + op = kzalloc(sizeof(*op), GFP_KERNEL); + if (!op) { +- fscache_stat(&fscache_n_attr_changed_nomem); ++ fscache_stat_unchecked(&fscache_n_attr_changed_nomem); + _leave(" = -ENOMEM"); + return -ENOMEM; + } +@@ -199,7 +199,7 @@ int __fscache_attr_changed(struct fscache_cookie *cookie) + if (fscache_submit_exclusive_op(object, op) < 0) + goto nobufs; + spin_unlock(&cookie->lock); +- fscache_stat(&fscache_n_attr_changed_ok); ++ fscache_stat_unchecked(&fscache_n_attr_changed_ok); + fscache_put_operation(op); + _leave(" = 0"); + return 0; +@@ -207,7 +207,7 @@ int __fscache_attr_changed(struct fscache_cookie *cookie) + nobufs: + spin_unlock(&cookie->lock); + kfree(op); +- fscache_stat(&fscache_n_attr_changed_nobufs); ++ fscache_stat_unchecked(&fscache_n_attr_changed_nobufs); + _leave(" = %d", -ENOBUFS); + return -ENOBUFS; + } +@@ -243,7 +243,7 @@ static struct fscache_retrieval *fscache_alloc_retrieval( + /* allocate a retrieval operation and attempt to submit it */ + op = kzalloc(sizeof(*op), GFP_NOIO); + if (!op) { +- fscache_stat(&fscache_n_retrievals_nomem); ++ fscache_stat_unchecked(&fscache_n_retrievals_nomem); + return NULL; + } + +@@ -271,13 +271,13 @@ static int fscache_wait_for_deferred_lookup(struct fscache_cookie *cookie) + return 0; + } + +- fscache_stat(&fscache_n_retrievals_wait); ++ fscache_stat_unchecked(&fscache_n_retrievals_wait); + + jif = jiffies; + if (wait_on_bit(&cookie->flags, FSCACHE_COOKIE_LOOKING_UP, + fscache_wait_bit_interruptible, + TASK_INTERRUPTIBLE) != 0) { +- fscache_stat(&fscache_n_retrievals_intr); ++ fscache_stat_unchecked(&fscache_n_retrievals_intr); + _leave(" = -ERESTARTSYS"); + return -ERESTARTSYS; + } +@@ -295,8 +295,8 @@ static int fscache_wait_for_deferred_lookup(struct fscache_cookie *cookie) + */ + static int fscache_wait_for_retrieval_activation(struct fscache_object *object, + struct fscache_retrieval *op, +- atomic_t *stat_op_waits, +- atomic_t *stat_object_dead) ++ atomic_unchecked_t *stat_op_waits, ++ atomic_unchecked_t *stat_object_dead) + { + int ret; + +@@ -304,7 +304,7 @@ static int fscache_wait_for_retrieval_activation(struct fscache_object *object, + goto check_if_dead; + + _debug(">>> WT"); +- fscache_stat(stat_op_waits); ++ fscache_stat_unchecked(stat_op_waits); + if (wait_on_bit(&op->op.flags, FSCACHE_OP_WAITING, + fscache_wait_bit_interruptible, + TASK_INTERRUPTIBLE) < 0) { +@@ -321,7 +321,7 @@ static int fscache_wait_for_retrieval_activation(struct fscache_object *object, + + check_if_dead: + if (unlikely(fscache_object_is_dead(object))) { +- fscache_stat(stat_object_dead); ++ fscache_stat_unchecked(stat_object_dead); + return -ENOBUFS; + } + return 0; +@@ -348,7 +348,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie, + + _enter("%p,%p,,,", cookie, page); + +- fscache_stat(&fscache_n_retrievals); ++ fscache_stat_unchecked(&fscache_n_retrievals); + + if (hlist_empty(&cookie->backing_objects)) + goto nobufs; +@@ -381,7 +381,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie, + goto nobufs_unlock; + spin_unlock(&cookie->lock); + +- fscache_stat(&fscache_n_retrieval_ops); ++ fscache_stat_unchecked(&fscache_n_retrieval_ops); + + /* pin the netfs read context in case we need to do the actual netfs + * read because we've encountered a cache read failure */ +@@ -411,15 +411,15 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie, + + error: + if (ret == -ENOMEM) +- fscache_stat(&fscache_n_retrievals_nomem); ++ fscache_stat_unchecked(&fscache_n_retrievals_nomem); + else if (ret == -ERESTARTSYS) +- fscache_stat(&fscache_n_retrievals_intr); ++ fscache_stat_unchecked(&fscache_n_retrievals_intr); + else if (ret == -ENODATA) +- fscache_stat(&fscache_n_retrievals_nodata); ++ fscache_stat_unchecked(&fscache_n_retrievals_nodata); + else if (ret < 0) +- fscache_stat(&fscache_n_retrievals_nobufs); ++ fscache_stat_unchecked(&fscache_n_retrievals_nobufs); + else +- fscache_stat(&fscache_n_retrievals_ok); ++ fscache_stat_unchecked(&fscache_n_retrievals_ok); + + fscache_put_retrieval(op); + _leave(" = %d", ret); +@@ -429,7 +429,7 @@ nobufs_unlock: + spin_unlock(&cookie->lock); + kfree(op); + nobufs: +- fscache_stat(&fscache_n_retrievals_nobufs); ++ fscache_stat_unchecked(&fscache_n_retrievals_nobufs); + _leave(" = -ENOBUFS"); + return -ENOBUFS; + } +@@ -467,7 +467,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie, + + _enter("%p,,%d,,,", cookie, *nr_pages); + +- fscache_stat(&fscache_n_retrievals); ++ fscache_stat_unchecked(&fscache_n_retrievals); + + if (hlist_empty(&cookie->backing_objects)) + goto nobufs; +@@ -497,7 +497,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie, + goto nobufs_unlock; + spin_unlock(&cookie->lock); + +- fscache_stat(&fscache_n_retrieval_ops); ++ fscache_stat_unchecked(&fscache_n_retrieval_ops); + + /* pin the netfs read context in case we need to do the actual netfs + * read because we've encountered a cache read failure */ +@@ -527,15 +527,15 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie, + + error: + if (ret == -ENOMEM) +- fscache_stat(&fscache_n_retrievals_nomem); ++ fscache_stat_unchecked(&fscache_n_retrievals_nomem); + else if (ret == -ERESTARTSYS) +- fscache_stat(&fscache_n_retrievals_intr); ++ fscache_stat_unchecked(&fscache_n_retrievals_intr); + else if (ret == -ENODATA) +- fscache_stat(&fscache_n_retrievals_nodata); ++ fscache_stat_unchecked(&fscache_n_retrievals_nodata); + else if (ret < 0) +- fscache_stat(&fscache_n_retrievals_nobufs); ++ fscache_stat_unchecked(&fscache_n_retrievals_nobufs); + else +- fscache_stat(&fscache_n_retrievals_ok); ++ fscache_stat_unchecked(&fscache_n_retrievals_ok); + + fscache_put_retrieval(op); + _leave(" = %d", ret); +@@ -545,7 +545,7 @@ nobufs_unlock: + spin_unlock(&cookie->lock); + kfree(op); + nobufs: +- fscache_stat(&fscache_n_retrievals_nobufs); ++ fscache_stat_unchecked(&fscache_n_retrievals_nobufs); + _leave(" = -ENOBUFS"); + return -ENOBUFS; + } +@@ -569,7 +569,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie, + + _enter("%p,%p,,,", cookie, page); + +- fscache_stat(&fscache_n_allocs); ++ fscache_stat_unchecked(&fscache_n_allocs); + + if (hlist_empty(&cookie->backing_objects)) + goto nobufs; +@@ -595,7 +595,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie, + goto nobufs_unlock; + spin_unlock(&cookie->lock); + +- fscache_stat(&fscache_n_alloc_ops); ++ fscache_stat_unchecked(&fscache_n_alloc_ops); + + ret = fscache_wait_for_retrieval_activation( + object, op, +@@ -611,11 +611,11 @@ int __fscache_alloc_page(struct fscache_cookie *cookie, + + error: + if (ret == -ERESTARTSYS) +- fscache_stat(&fscache_n_allocs_intr); ++ fscache_stat_unchecked(&fscache_n_allocs_intr); + else if (ret < 0) +- fscache_stat(&fscache_n_allocs_nobufs); ++ fscache_stat_unchecked(&fscache_n_allocs_nobufs); + else +- fscache_stat(&fscache_n_allocs_ok); ++ fscache_stat_unchecked(&fscache_n_allocs_ok); + + fscache_put_retrieval(op); + _leave(" = %d", ret); +@@ -625,7 +625,7 @@ nobufs_unlock: + spin_unlock(&cookie->lock); + kfree(op); + nobufs: +- fscache_stat(&fscache_n_allocs_nobufs); ++ fscache_stat_unchecked(&fscache_n_allocs_nobufs); + _leave(" = -ENOBUFS"); + return -ENOBUFS; + } +@@ -666,7 +666,7 @@ static void fscache_write_op(struct fscache_operation *_op) + + spin_lock(&cookie->stores_lock); + +- fscache_stat(&fscache_n_store_calls); ++ fscache_stat_unchecked(&fscache_n_store_calls); + + /* find a page to store */ + page = NULL; +@@ -677,7 +677,7 @@ static void fscache_write_op(struct fscache_operation *_op) + page = results[0]; + _debug("gang %d [%lx]", n, page->index); + if (page->index > op->store_limit) { +- fscache_stat(&fscache_n_store_pages_over_limit); ++ fscache_stat_unchecked(&fscache_n_store_pages_over_limit); + goto superseded; + } + +@@ -689,7 +689,7 @@ static void fscache_write_op(struct fscache_operation *_op) + spin_unlock(&cookie->stores_lock); + spin_unlock(&object->lock); + +- fscache_stat(&fscache_n_store_pages); ++ fscache_stat_unchecked(&fscache_n_store_pages); + fscache_stat(&fscache_n_cop_write_page); + ret = object->cache->ops->write_page(op, page); + fscache_stat_d(&fscache_n_cop_write_page); +@@ -757,7 +757,7 @@ int __fscache_write_page(struct fscache_cookie *cookie, + ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX); + ASSERT(PageFsCache(page)); + +- fscache_stat(&fscache_n_stores); ++ fscache_stat_unchecked(&fscache_n_stores); + + op = kzalloc(sizeof(*op), GFP_NOIO); + if (!op) +@@ -808,7 +808,7 @@ int __fscache_write_page(struct fscache_cookie *cookie, + spin_unlock(&cookie->stores_lock); + spin_unlock(&object->lock); + +- op->op.debug_id = atomic_inc_return(&fscache_op_debug_id); ++ op->op.debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id); + op->store_limit = object->store_limit; + + if (fscache_submit_op(object, &op->op) < 0) +@@ -816,8 +816,8 @@ int __fscache_write_page(struct fscache_cookie *cookie, + + spin_unlock(&cookie->lock); + radix_tree_preload_end(); +- fscache_stat(&fscache_n_store_ops); +- fscache_stat(&fscache_n_stores_ok); ++ fscache_stat_unchecked(&fscache_n_store_ops); ++ fscache_stat_unchecked(&fscache_n_stores_ok); + + /* the work queue now carries its own ref on the object */ + fscache_put_operation(&op->op); +@@ -825,14 +825,14 @@ int __fscache_write_page(struct fscache_cookie *cookie, + return 0; + + already_queued: +- fscache_stat(&fscache_n_stores_again); ++ fscache_stat_unchecked(&fscache_n_stores_again); + already_pending: + spin_unlock(&cookie->stores_lock); + spin_unlock(&object->lock); + spin_unlock(&cookie->lock); + radix_tree_preload_end(); + kfree(op); +- fscache_stat(&fscache_n_stores_ok); ++ fscache_stat_unchecked(&fscache_n_stores_ok); + _leave(" = 0"); + return 0; + +@@ -851,14 +851,14 @@ nobufs: + spin_unlock(&cookie->lock); + radix_tree_preload_end(); + kfree(op); +- fscache_stat(&fscache_n_stores_nobufs); ++ fscache_stat_unchecked(&fscache_n_stores_nobufs); + _leave(" = -ENOBUFS"); + return -ENOBUFS; + + nomem_free: + kfree(op); + nomem: +- fscache_stat(&fscache_n_stores_oom); ++ fscache_stat_unchecked(&fscache_n_stores_oom); + _leave(" = -ENOMEM"); + return -ENOMEM; + } +@@ -876,7 +876,7 @@ void __fscache_uncache_page(struct fscache_cookie *cookie, struct page *page) + ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX); + ASSERTCMP(page, !=, NULL); + +- fscache_stat(&fscache_n_uncaches); ++ fscache_stat_unchecked(&fscache_n_uncaches); + + /* cache withdrawal may beat us to it */ + if (!PageFsCache(page)) +@@ -929,7 +929,7 @@ void fscache_mark_pages_cached(struct fscache_retrieval *op, + unsigned long loop; + + #ifdef CONFIG_FSCACHE_STATS +- atomic_add(pagevec->nr, &fscache_n_marks); ++ atomic_add_unchecked(pagevec->nr, &fscache_n_marks); + #endif + + for (loop = 0; loop < pagevec->nr; loop++) { +diff --git a/fs/fscache/stats.c b/fs/fscache/stats.c +index 4765190..2a067f2 100644 +--- a/fs/fscache/stats.c ++++ b/fs/fscache/stats.c +@@ -18,95 +18,95 @@ + /* + * operation counters + */ +-atomic_t fscache_n_op_pend; +-atomic_t fscache_n_op_run; +-atomic_t fscache_n_op_enqueue; +-atomic_t fscache_n_op_requeue; +-atomic_t fscache_n_op_deferred_release; +-atomic_t fscache_n_op_release; +-atomic_t fscache_n_op_gc; +-atomic_t fscache_n_op_cancelled; +-atomic_t fscache_n_op_rejected; ++atomic_unchecked_t fscache_n_op_pend; ++atomic_unchecked_t fscache_n_op_run; ++atomic_unchecked_t fscache_n_op_enqueue; ++atomic_unchecked_t fscache_n_op_requeue; ++atomic_unchecked_t fscache_n_op_deferred_release; ++atomic_unchecked_t fscache_n_op_release; ++atomic_unchecked_t fscache_n_op_gc; ++atomic_unchecked_t fscache_n_op_cancelled; ++atomic_unchecked_t fscache_n_op_rejected; + +-atomic_t fscache_n_attr_changed; +-atomic_t fscache_n_attr_changed_ok; +-atomic_t fscache_n_attr_changed_nobufs; +-atomic_t fscache_n_attr_changed_nomem; +-atomic_t fscache_n_attr_changed_calls; ++atomic_unchecked_t fscache_n_attr_changed; ++atomic_unchecked_t fscache_n_attr_changed_ok; ++atomic_unchecked_t fscache_n_attr_changed_nobufs; ++atomic_unchecked_t fscache_n_attr_changed_nomem; ++atomic_unchecked_t fscache_n_attr_changed_calls; + +-atomic_t fscache_n_allocs; +-atomic_t fscache_n_allocs_ok; +-atomic_t fscache_n_allocs_wait; +-atomic_t fscache_n_allocs_nobufs; +-atomic_t fscache_n_allocs_intr; +-atomic_t fscache_n_allocs_object_dead; +-atomic_t fscache_n_alloc_ops; +-atomic_t fscache_n_alloc_op_waits; ++atomic_unchecked_t fscache_n_allocs; ++atomic_unchecked_t fscache_n_allocs_ok; ++atomic_unchecked_t fscache_n_allocs_wait; ++atomic_unchecked_t fscache_n_allocs_nobufs; ++atomic_unchecked_t fscache_n_allocs_intr; ++atomic_unchecked_t fscache_n_allocs_object_dead; ++atomic_unchecked_t fscache_n_alloc_ops; ++atomic_unchecked_t fscache_n_alloc_op_waits; + +-atomic_t fscache_n_retrievals; +-atomic_t fscache_n_retrievals_ok; +-atomic_t fscache_n_retrievals_wait; +-atomic_t fscache_n_retrievals_nodata; +-atomic_t fscache_n_retrievals_nobufs; +-atomic_t fscache_n_retrievals_intr; +-atomic_t fscache_n_retrievals_nomem; +-atomic_t fscache_n_retrievals_object_dead; +-atomic_t fscache_n_retrieval_ops; +-atomic_t fscache_n_retrieval_op_waits; ++atomic_unchecked_t fscache_n_retrievals; ++atomic_unchecked_t fscache_n_retrievals_ok; ++atomic_unchecked_t fscache_n_retrievals_wait; ++atomic_unchecked_t fscache_n_retrievals_nodata; ++atomic_unchecked_t fscache_n_retrievals_nobufs; ++atomic_unchecked_t fscache_n_retrievals_intr; ++atomic_unchecked_t fscache_n_retrievals_nomem; ++atomic_unchecked_t fscache_n_retrievals_object_dead; ++atomic_unchecked_t fscache_n_retrieval_ops; ++atomic_unchecked_t fscache_n_retrieval_op_waits; + +-atomic_t fscache_n_stores; +-atomic_t fscache_n_stores_ok; +-atomic_t fscache_n_stores_again; +-atomic_t fscache_n_stores_nobufs; +-atomic_t fscache_n_stores_oom; +-atomic_t fscache_n_store_ops; +-atomic_t fscache_n_store_calls; +-atomic_t fscache_n_store_pages; +-atomic_t fscache_n_store_radix_deletes; +-atomic_t fscache_n_store_pages_over_limit; ++atomic_unchecked_t fscache_n_stores; ++atomic_unchecked_t fscache_n_stores_ok; ++atomic_unchecked_t fscache_n_stores_again; ++atomic_unchecked_t fscache_n_stores_nobufs; ++atomic_unchecked_t fscache_n_stores_oom; ++atomic_unchecked_t fscache_n_store_ops; ++atomic_unchecked_t fscache_n_store_calls; ++atomic_unchecked_t fscache_n_store_pages; ++atomic_unchecked_t fscache_n_store_radix_deletes; ++atomic_unchecked_t fscache_n_store_pages_over_limit; + +-atomic_t fscache_n_store_vmscan_not_storing; +-atomic_t fscache_n_store_vmscan_gone; +-atomic_t fscache_n_store_vmscan_busy; +-atomic_t fscache_n_store_vmscan_cancelled; ++atomic_unchecked_t fscache_n_store_vmscan_not_storing; ++atomic_unchecked_t fscache_n_store_vmscan_gone; ++atomic_unchecked_t fscache_n_store_vmscan_busy; ++atomic_unchecked_t fscache_n_store_vmscan_cancelled; + +-atomic_t fscache_n_marks; +-atomic_t fscache_n_uncaches; ++atomic_unchecked_t fscache_n_marks; ++atomic_unchecked_t fscache_n_uncaches; + +-atomic_t fscache_n_acquires; +-atomic_t fscache_n_acquires_null; +-atomic_t fscache_n_acquires_no_cache; +-atomic_t fscache_n_acquires_ok; +-atomic_t fscache_n_acquires_nobufs; +-atomic_t fscache_n_acquires_oom; ++atomic_unchecked_t fscache_n_acquires; ++atomic_unchecked_t fscache_n_acquires_null; ++atomic_unchecked_t fscache_n_acquires_no_cache; ++atomic_unchecked_t fscache_n_acquires_ok; ++atomic_unchecked_t fscache_n_acquires_nobufs; ++atomic_unchecked_t fscache_n_acquires_oom; + +-atomic_t fscache_n_updates; +-atomic_t fscache_n_updates_null; +-atomic_t fscache_n_updates_run; ++atomic_unchecked_t fscache_n_updates; ++atomic_unchecked_t fscache_n_updates_null; ++atomic_unchecked_t fscache_n_updates_run; + +-atomic_t fscache_n_relinquishes; +-atomic_t fscache_n_relinquishes_null; +-atomic_t fscache_n_relinquishes_waitcrt; +-atomic_t fscache_n_relinquishes_retire; ++atomic_unchecked_t fscache_n_relinquishes; ++atomic_unchecked_t fscache_n_relinquishes_null; ++atomic_unchecked_t fscache_n_relinquishes_waitcrt; ++atomic_unchecked_t fscache_n_relinquishes_retire; + +-atomic_t fscache_n_cookie_index; +-atomic_t fscache_n_cookie_data; +-atomic_t fscache_n_cookie_special; ++atomic_unchecked_t fscache_n_cookie_index; ++atomic_unchecked_t fscache_n_cookie_data; ++atomic_unchecked_t fscache_n_cookie_special; + +-atomic_t fscache_n_object_alloc; +-atomic_t fscache_n_object_no_alloc; +-atomic_t fscache_n_object_lookups; +-atomic_t fscache_n_object_lookups_negative; +-atomic_t fscache_n_object_lookups_positive; +-atomic_t fscache_n_object_lookups_timed_out; +-atomic_t fscache_n_object_created; +-atomic_t fscache_n_object_avail; +-atomic_t fscache_n_object_dead; ++atomic_unchecked_t fscache_n_object_alloc; ++atomic_unchecked_t fscache_n_object_no_alloc; ++atomic_unchecked_t fscache_n_object_lookups; ++atomic_unchecked_t fscache_n_object_lookups_negative; ++atomic_unchecked_t fscache_n_object_lookups_positive; ++atomic_unchecked_t fscache_n_object_lookups_timed_out; ++atomic_unchecked_t fscache_n_object_created; ++atomic_unchecked_t fscache_n_object_avail; ++atomic_unchecked_t fscache_n_object_dead; + +-atomic_t fscache_n_checkaux_none; +-atomic_t fscache_n_checkaux_okay; +-atomic_t fscache_n_checkaux_update; +-atomic_t fscache_n_checkaux_obsolete; ++atomic_unchecked_t fscache_n_checkaux_none; ++atomic_unchecked_t fscache_n_checkaux_okay; ++atomic_unchecked_t fscache_n_checkaux_update; ++atomic_unchecked_t fscache_n_checkaux_obsolete; + + atomic_t fscache_n_cop_alloc_object; + atomic_t fscache_n_cop_lookup_object; +@@ -133,113 +133,113 @@ static int fscache_stats_show(struct seq_file *m, void *v) + seq_puts(m, "FS-Cache statistics\n"); + + seq_printf(m, "Cookies: idx=%u dat=%u spc=%u\n", +- atomic_read(&fscache_n_cookie_index), +- atomic_read(&fscache_n_cookie_data), +- atomic_read(&fscache_n_cookie_special)); ++ atomic_read_unchecked(&fscache_n_cookie_index), ++ atomic_read_unchecked(&fscache_n_cookie_data), ++ atomic_read_unchecked(&fscache_n_cookie_special)); + + seq_printf(m, "Objects: alc=%u nal=%u avl=%u ded=%u\n", +- atomic_read(&fscache_n_object_alloc), +- atomic_read(&fscache_n_object_no_alloc), +- atomic_read(&fscache_n_object_avail), +- atomic_read(&fscache_n_object_dead)); ++ atomic_read_unchecked(&fscache_n_object_alloc), ++ atomic_read_unchecked(&fscache_n_object_no_alloc), ++ atomic_read_unchecked(&fscache_n_object_avail), ++ atomic_read_unchecked(&fscache_n_object_dead)); + seq_printf(m, "ChkAux : non=%u ok=%u upd=%u obs=%u\n", +- atomic_read(&fscache_n_checkaux_none), +- atomic_read(&fscache_n_checkaux_okay), +- atomic_read(&fscache_n_checkaux_update), +- atomic_read(&fscache_n_checkaux_obsolete)); ++ atomic_read_unchecked(&fscache_n_checkaux_none), ++ atomic_read_unchecked(&fscache_n_checkaux_okay), ++ atomic_read_unchecked(&fscache_n_checkaux_update), ++ atomic_read_unchecked(&fscache_n_checkaux_obsolete)); + + seq_printf(m, "Pages : mrk=%u unc=%u\n", +- atomic_read(&fscache_n_marks), +- atomic_read(&fscache_n_uncaches)); ++ atomic_read_unchecked(&fscache_n_marks), ++ atomic_read_unchecked(&fscache_n_uncaches)); + + seq_printf(m, "Acquire: n=%u nul=%u noc=%u ok=%u nbf=%u" + " oom=%u\n", +- atomic_read(&fscache_n_acquires), +- atomic_read(&fscache_n_acquires_null), +- atomic_read(&fscache_n_acquires_no_cache), +- atomic_read(&fscache_n_acquires_ok), +- atomic_read(&fscache_n_acquires_nobufs), +- atomic_read(&fscache_n_acquires_oom)); ++ atomic_read_unchecked(&fscache_n_acquires), ++ atomic_read_unchecked(&fscache_n_acquires_null), ++ atomic_read_unchecked(&fscache_n_acquires_no_cache), ++ atomic_read_unchecked(&fscache_n_acquires_ok), ++ atomic_read_unchecked(&fscache_n_acquires_nobufs), ++ atomic_read_unchecked(&fscache_n_acquires_oom)); + + seq_printf(m, "Lookups: n=%u neg=%u pos=%u crt=%u tmo=%u\n", +- atomic_read(&fscache_n_object_lookups), +- atomic_read(&fscache_n_object_lookups_negative), +- atomic_read(&fscache_n_object_lookups_positive), +- atomic_read(&fscache_n_object_created), +- atomic_read(&fscache_n_object_lookups_timed_out)); ++ atomic_read_unchecked(&fscache_n_object_lookups), ++ atomic_read_unchecked(&fscache_n_object_lookups_negative), ++ atomic_read_unchecked(&fscache_n_object_lookups_positive), ++ atomic_read_unchecked(&fscache_n_object_created), ++ atomic_read_unchecked(&fscache_n_object_lookups_timed_out)); + + seq_printf(m, "Updates: n=%u nul=%u run=%u\n", +- atomic_read(&fscache_n_updates), +- atomic_read(&fscache_n_updates_null), +- atomic_read(&fscache_n_updates_run)); ++ atomic_read_unchecked(&fscache_n_updates), ++ atomic_read_unchecked(&fscache_n_updates_null), ++ atomic_read_unchecked(&fscache_n_updates_run)); + + seq_printf(m, "Relinqs: n=%u nul=%u wcr=%u rtr=%u\n", +- atomic_read(&fscache_n_relinquishes), +- atomic_read(&fscache_n_relinquishes_null), +- atomic_read(&fscache_n_relinquishes_waitcrt), +- atomic_read(&fscache_n_relinquishes_retire)); ++ atomic_read_unchecked(&fscache_n_relinquishes), ++ atomic_read_unchecked(&fscache_n_relinquishes_null), ++ atomic_read_unchecked(&fscache_n_relinquishes_waitcrt), ++ atomic_read_unchecked(&fscache_n_relinquishes_retire)); + + seq_printf(m, "AttrChg: n=%u ok=%u nbf=%u oom=%u run=%u\n", +- atomic_read(&fscache_n_attr_changed), +- atomic_read(&fscache_n_attr_changed_ok), +- atomic_read(&fscache_n_attr_changed_nobufs), +- atomic_read(&fscache_n_attr_changed_nomem), +- atomic_read(&fscache_n_attr_changed_calls)); ++ atomic_read_unchecked(&fscache_n_attr_changed), ++ atomic_read_unchecked(&fscache_n_attr_changed_ok), ++ atomic_read_unchecked(&fscache_n_attr_changed_nobufs), ++ atomic_read_unchecked(&fscache_n_attr_changed_nomem), ++ atomic_read_unchecked(&fscache_n_attr_changed_calls)); + + seq_printf(m, "Allocs : n=%u ok=%u wt=%u nbf=%u int=%u\n", +- atomic_read(&fscache_n_allocs), +- atomic_read(&fscache_n_allocs_ok), +- atomic_read(&fscache_n_allocs_wait), +- atomic_read(&fscache_n_allocs_nobufs), +- atomic_read(&fscache_n_allocs_intr)); ++ atomic_read_unchecked(&fscache_n_allocs), ++ atomic_read_unchecked(&fscache_n_allocs_ok), ++ atomic_read_unchecked(&fscache_n_allocs_wait), ++ atomic_read_unchecked(&fscache_n_allocs_nobufs), ++ atomic_read_unchecked(&fscache_n_allocs_intr)); + seq_printf(m, "Allocs : ops=%u owt=%u abt=%u\n", +- atomic_read(&fscache_n_alloc_ops), +- atomic_read(&fscache_n_alloc_op_waits), +- atomic_read(&fscache_n_allocs_object_dead)); ++ atomic_read_unchecked(&fscache_n_alloc_ops), ++ atomic_read_unchecked(&fscache_n_alloc_op_waits), ++ atomic_read_unchecked(&fscache_n_allocs_object_dead)); + + seq_printf(m, "Retrvls: n=%u ok=%u wt=%u nod=%u nbf=%u" + " int=%u oom=%u\n", +- atomic_read(&fscache_n_retrievals), +- atomic_read(&fscache_n_retrievals_ok), +- atomic_read(&fscache_n_retrievals_wait), +- atomic_read(&fscache_n_retrievals_nodata), +- atomic_read(&fscache_n_retrievals_nobufs), +- atomic_read(&fscache_n_retrievals_intr), +- atomic_read(&fscache_n_retrievals_nomem)); ++ atomic_read_unchecked(&fscache_n_retrievals), ++ atomic_read_unchecked(&fscache_n_retrievals_ok), ++ atomic_read_unchecked(&fscache_n_retrievals_wait), ++ atomic_read_unchecked(&fscache_n_retrievals_nodata), ++ atomic_read_unchecked(&fscache_n_retrievals_nobufs), ++ atomic_read_unchecked(&fscache_n_retrievals_intr), ++ atomic_read_unchecked(&fscache_n_retrievals_nomem)); + seq_printf(m, "Retrvls: ops=%u owt=%u abt=%u\n", +- atomic_read(&fscache_n_retrieval_ops), +- atomic_read(&fscache_n_retrieval_op_waits), +- atomic_read(&fscache_n_retrievals_object_dead)); ++ atomic_read_unchecked(&fscache_n_retrieval_ops), ++ atomic_read_unchecked(&fscache_n_retrieval_op_waits), ++ atomic_read_unchecked(&fscache_n_retrievals_object_dead)); + + seq_printf(m, "Stores : n=%u ok=%u agn=%u nbf=%u oom=%u\n", +- atomic_read(&fscache_n_stores), +- atomic_read(&fscache_n_stores_ok), +- atomic_read(&fscache_n_stores_again), +- atomic_read(&fscache_n_stores_nobufs), +- atomic_read(&fscache_n_stores_oom)); ++ atomic_read_unchecked(&fscache_n_stores), ++ atomic_read_unchecked(&fscache_n_stores_ok), ++ atomic_read_unchecked(&fscache_n_stores_again), ++ atomic_read_unchecked(&fscache_n_stores_nobufs), ++ atomic_read_unchecked(&fscache_n_stores_oom)); + seq_printf(m, "Stores : ops=%u run=%u pgs=%u rxd=%u olm=%u\n", +- atomic_read(&fscache_n_store_ops), +- atomic_read(&fscache_n_store_calls), +- atomic_read(&fscache_n_store_pages), +- atomic_read(&fscache_n_store_radix_deletes), +- atomic_read(&fscache_n_store_pages_over_limit)); ++ atomic_read_unchecked(&fscache_n_store_ops), ++ atomic_read_unchecked(&fscache_n_store_calls), ++ atomic_read_unchecked(&fscache_n_store_pages), ++ atomic_read_unchecked(&fscache_n_store_radix_deletes), ++ atomic_read_unchecked(&fscache_n_store_pages_over_limit)); + + seq_printf(m, "VmScan : nos=%u gon=%u bsy=%u can=%u\n", +- atomic_read(&fscache_n_store_vmscan_not_storing), +- atomic_read(&fscache_n_store_vmscan_gone), +- atomic_read(&fscache_n_store_vmscan_busy), +- atomic_read(&fscache_n_store_vmscan_cancelled)); ++ atomic_read_unchecked(&fscache_n_store_vmscan_not_storing), ++ atomic_read_unchecked(&fscache_n_store_vmscan_gone), ++ atomic_read_unchecked(&fscache_n_store_vmscan_busy), ++ atomic_read_unchecked(&fscache_n_store_vmscan_cancelled)); + + seq_printf(m, "Ops : pend=%u run=%u enq=%u can=%u rej=%u\n", +- atomic_read(&fscache_n_op_pend), +- atomic_read(&fscache_n_op_run), +- atomic_read(&fscache_n_op_enqueue), +- atomic_read(&fscache_n_op_cancelled), +- atomic_read(&fscache_n_op_rejected)); ++ atomic_read_unchecked(&fscache_n_op_pend), ++ atomic_read_unchecked(&fscache_n_op_run), ++ atomic_read_unchecked(&fscache_n_op_enqueue), ++ atomic_read_unchecked(&fscache_n_op_cancelled), ++ atomic_read_unchecked(&fscache_n_op_rejected)); + seq_printf(m, "Ops : dfr=%u rel=%u gc=%u\n", +- atomic_read(&fscache_n_op_deferred_release), +- atomic_read(&fscache_n_op_release), +- atomic_read(&fscache_n_op_gc)); ++ atomic_read_unchecked(&fscache_n_op_deferred_release), ++ atomic_read_unchecked(&fscache_n_op_release), ++ atomic_read_unchecked(&fscache_n_op_gc)); + + seq_printf(m, "CacheOp: alo=%d luo=%d luc=%d gro=%d\n", + atomic_read(&fscache_n_cop_alloc_object), +diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c +index 3426521..3b75162 100644 +--- a/fs/fuse/cuse.c ++++ b/fs/fuse/cuse.c +@@ -587,10 +587,12 @@ static int __init cuse_init(void) + INIT_LIST_HEAD(&cuse_conntbl[i]); + + /* inherit and extend fuse_dev_operations */ +- cuse_channel_fops = fuse_dev_operations; +- cuse_channel_fops.owner = THIS_MODULE; +- cuse_channel_fops.open = cuse_channel_open; +- cuse_channel_fops.release = cuse_channel_release; ++ pax_open_kernel(); ++ memcpy((void *)&cuse_channel_fops, &fuse_dev_operations, sizeof(fuse_dev_operations)); ++ *(void **)&cuse_channel_fops.owner = THIS_MODULE; ++ *(void **)&cuse_channel_fops.open = cuse_channel_open; ++ *(void **)&cuse_channel_fops.release = cuse_channel_release; ++ pax_close_kernel(); + + cuse_class = class_create(THIS_MODULE, "cuse"); + if (IS_ERR(cuse_class)) +diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c +index 7df2b5e..5804aa7 100644 +--- a/fs/fuse/dev.c ++++ b/fs/fuse/dev.c +@@ -1242,7 +1242,7 @@ static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos, + ret = 0; + pipe_lock(pipe); + +- if (!pipe->readers) { ++ if (!atomic_read(&pipe->readers)) { + send_sig(SIGPIPE, current, 0); + if (!ret) + ret = -EPIPE; +diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c +index bc43832..0cfe5a6 100644 +--- a/fs/fuse/dir.c ++++ b/fs/fuse/dir.c +@@ -1181,7 +1181,7 @@ static char *read_link(struct dentry *dentry) + return link; + } + +-static void free_link(char *link) ++static void free_link(const char *link) + { + if (!IS_ERR(link)) + free_page((unsigned long) link); +diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c +index a9ba244..d9df391 100644 +--- a/fs/gfs2/inode.c ++++ b/fs/gfs2/inode.c +@@ -1496,7 +1496,7 @@ out: + + static void gfs2_put_link(struct dentry *dentry, struct nameidata *nd, void *p) + { +- char *s = nd_get_link(nd); ++ const char *s = nd_get_link(nd); + if (!IS_ERR(s)) + kfree(s); + } +diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c +index 001ef01..f7d5f07 100644 +--- a/fs/hugetlbfs/inode.c ++++ b/fs/hugetlbfs/inode.c +@@ -920,7 +920,7 @@ static struct file_system_type hugetlbfs_fs_type = { + .kill_sb = kill_litter_super, + }; + +-static struct vfsmount *hugetlbfs_vfsmount; ++struct vfsmount *hugetlbfs_vfsmount; + + static int can_do_hugetlb_shm(void) + { +diff --git a/fs/inode.c b/fs/inode.c +index 9f4f5fe..6214688 100644 +--- a/fs/inode.c ++++ b/fs/inode.c +@@ -860,8 +860,8 @@ unsigned int get_next_ino(void) + + #ifdef CONFIG_SMP + if (unlikely((res & (LAST_INO_BATCH-1)) == 0)) { +- static atomic_t shared_last_ino; +- int next = atomic_add_return(LAST_INO_BATCH, &shared_last_ino); ++ static atomic_unchecked_t shared_last_ino; ++ int next = atomic_add_return_unchecked(LAST_INO_BATCH, &shared_last_ino); + + res = next - LAST_INO_BATCH; + } +diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c +index 4a6cf28..d3a29d3 100644 +--- a/fs/jffs2/erase.c ++++ b/fs/jffs2/erase.c +@@ -452,7 +452,8 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb + struct jffs2_unknown_node marker = { + .magic = cpu_to_je16(JFFS2_MAGIC_BITMASK), + .nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER), +- .totlen = cpu_to_je32(c->cleanmarker_size) ++ .totlen = cpu_to_je32(c->cleanmarker_size), ++ .hdr_crc = cpu_to_je32(0) + }; + + jffs2_prealloc_raw_node_refs(c, jeb, 1); +diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c +index 74d9be1..d5dd140 100644 +--- a/fs/jffs2/wbuf.c ++++ b/fs/jffs2/wbuf.c +@@ -1022,7 +1022,8 @@ static const struct jffs2_unknown_node oob_cleanmarker = + { + .magic = constant_cpu_to_je16(JFFS2_MAGIC_BITMASK), + .nodetype = constant_cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER), +- .totlen = constant_cpu_to_je32(8) ++ .totlen = constant_cpu_to_je32(8), ++ .hdr_crc = constant_cpu_to_je32(0) + }; + + /* +diff --git a/fs/jfs/super.c b/fs/jfs/super.c +index 4a82950..bcaa0cb 100644 +--- a/fs/jfs/super.c ++++ b/fs/jfs/super.c +@@ -801,7 +801,7 @@ static int __init init_jfs_fs(void) + + jfs_inode_cachep = + kmem_cache_create("jfs_ip", sizeof(struct jfs_inode_info), 0, +- SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD, ++ SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD|SLAB_USERCOPY, + init_once); + if (jfs_inode_cachep == NULL) + return -ENOMEM; +diff --git a/fs/libfs.c b/fs/libfs.c +index 18d08f5..fe3dc64 100644 +--- a/fs/libfs.c ++++ b/fs/libfs.c +@@ -165,6 +165,9 @@ int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir) + + for (p=q->next; p != &dentry->d_subdirs; p=p->next) { + struct dentry *next; ++ char d_name[sizeof(next->d_iname)]; ++ const unsigned char *name; ++ + next = list_entry(p, struct dentry, d_u.d_child); + spin_lock_nested(&next->d_lock, DENTRY_D_LOCK_NESTED); + if (!simple_positive(next)) { +@@ -174,7 +177,12 @@ int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir) + + spin_unlock(&next->d_lock); + spin_unlock(&dentry->d_lock); +- if (filldir(dirent, next->d_name.name, ++ name = next->d_name.name; ++ if (name == next->d_iname) { ++ memcpy(d_name, name, next->d_name.len); ++ name = d_name; ++ } ++ if (filldir(dirent, name, + next->d_name.len, filp->f_pos, + next->d_inode->i_ino, + dt_type(next->d_inode)) < 0) +diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c +index 8392cb8..80d6193 100644 +--- a/fs/lockd/clntproc.c ++++ b/fs/lockd/clntproc.c +@@ -36,11 +36,11 @@ static const struct rpc_call_ops nlmclnt_cancel_ops; + /* + * Cookie counter for NLM requests + */ +-static atomic_t nlm_cookie = ATOMIC_INIT(0x1234); ++static atomic_unchecked_t nlm_cookie = ATOMIC_INIT(0x1234); + + void nlmclnt_next_cookie(struct nlm_cookie *c) + { +- u32 cookie = atomic_inc_return(&nlm_cookie); ++ u32 cookie = atomic_inc_return_unchecked(&nlm_cookie); + + memcpy(c->data, &cookie, 4); + c->len=4; +diff --git a/fs/locks.c b/fs/locks.c +index 6a64f15..c3dacf2 100644 +--- a/fs/locks.c ++++ b/fs/locks.c +@@ -308,7 +308,7 @@ static int flock_make_lock(struct file *filp, struct file_lock **lock, + return 0; + } + +-static int assign_type(struct file_lock *fl, int type) ++static int assign_type(struct file_lock *fl, long type) + { + switch (type) { + case F_RDLCK: +@@ -445,7 +445,7 @@ static const struct lock_manager_operations lease_manager_ops = { + /* + * Initialize a lease, use the default lock manager operations + */ +-static int lease_init(struct file *filp, int type, struct file_lock *fl) ++static int lease_init(struct file *filp, long type, struct file_lock *fl) + { + if (assign_type(fl, type) != 0) + return -EINVAL; +@@ -463,7 +463,7 @@ static int lease_init(struct file *filp, int type, struct file_lock *fl) + } + + /* Allocate a file_lock initialised to this type of lease */ +-static struct file_lock *lease_alloc(struct file *filp, int type) ++static struct file_lock *lease_alloc(struct file *filp, long type) + { + struct file_lock *fl = locks_alloc_lock(); + int error = -ENOMEM; +@@ -2075,16 +2075,16 @@ void locks_remove_flock(struct file *filp) + return; + + if (filp->f_op && filp->f_op->flock) { +- struct file_lock fl = { ++ struct file_lock flock = { + .fl_pid = current->tgid, + .fl_file = filp, + .fl_flags = FL_FLOCK, + .fl_type = F_UNLCK, + .fl_end = OFFSET_MAX, + }; +- filp->f_op->flock(filp, F_SETLKW, &fl); +- if (fl.fl_ops && fl.fl_ops->fl_release_private) +- fl.fl_ops->fl_release_private(&fl); ++ filp->f_op->flock(filp, F_SETLKW, &flock); ++ if (flock.fl_ops && flock.fl_ops->fl_release_private) ++ flock.fl_ops->fl_release_private(&flock); + } + + lock_flocks(); +diff --git a/fs/namei.c b/fs/namei.c +index c427919..232326c 100644 +--- a/fs/namei.c ++++ b/fs/namei.c +@@ -278,16 +278,32 @@ int generic_permission(struct inode *inode, int mask) + if (ret != -EACCES) + return ret; + ++#ifdef CONFIG_GRKERNSEC ++ /* we'll block if we have to log due to a denied capability use */ ++ if (mask & MAY_NOT_BLOCK) ++ return -ECHILD; ++#endif ++ + if (S_ISDIR(inode->i_mode)) { + /* DACs are overridable for directories */ +- if (ns_capable(inode_userns(inode), CAP_DAC_OVERRIDE)) +- return 0; + if (!(mask & MAY_WRITE)) +- if (ns_capable(inode_userns(inode), CAP_DAC_READ_SEARCH)) ++ if (ns_capable_nolog(inode_userns(inode), CAP_DAC_OVERRIDE) || ++ ns_capable(inode_userns(inode), CAP_DAC_READ_SEARCH)) + return 0; ++ if (ns_capable(inode_userns(inode), CAP_DAC_OVERRIDE)) ++ return 0; + return -EACCES; + } + /* ++ * Searching includes executable on directories, else just read. ++ */ ++ mask &= MAY_READ | MAY_WRITE | MAY_EXEC; ++ if (mask == MAY_READ) ++ if (ns_capable_nolog(inode_userns(inode), CAP_DAC_OVERRIDE) || ++ ns_capable(inode_userns(inode), CAP_DAC_READ_SEARCH)) ++ return 0; ++ ++ /* + * Read/write DACs are always overridable. + * Executable DACs are overridable when there is + * at least one exec bit set. +@@ -296,14 +312,6 @@ int generic_permission(struct inode *inode, int mask) + if (ns_capable(inode_userns(inode), CAP_DAC_OVERRIDE)) + return 0; + +- /* +- * Searching includes executable on directories, else just read. +- */ +- mask &= MAY_READ | MAY_WRITE | MAY_EXEC; +- if (mask == MAY_READ) +- if (ns_capable(inode_userns(inode), CAP_DAC_READ_SEARCH)) +- return 0; +- + return -EACCES; + } + +@@ -652,11 +660,19 @@ follow_link(struct path *link, struct nameidata *nd, void **p) + return error; + } + ++ if (gr_handle_follow_link(dentry->d_parent->d_inode, ++ dentry->d_inode, dentry, nd->path.mnt)) { ++ error = -EACCES; ++ *p = ERR_PTR(error); /* no ->put_link(), please */ ++ path_put(&nd->path); ++ return error; ++ } ++ + nd->last_type = LAST_BIND; + *p = dentry->d_inode->i_op->follow_link(dentry, nd); + error = PTR_ERR(*p); + if (!IS_ERR(*p)) { +- char *s = nd_get_link(nd); ++ const char *s = nd_get_link(nd); + error = 0; + if (s) + error = __vfs_follow_link(nd, s); +@@ -1355,6 +1371,9 @@ static inline int nested_symlink(struct path *path, struct nameidata *nd) + if (!res) + res = walk_component(nd, path, &nd->last, + nd->last_type, LOOKUP_FOLLOW); ++ if (res >= 0 && gr_handle_symlink_owner(&link, nd->inode)) { ++ res = -EACCES; ++ } + put_link(nd, &link, cookie); + } while (res > 0); + +@@ -1746,6 +1765,9 @@ static int path_lookupat(int dfd, const char *name, + err = follow_link(&link, nd, &cookie); + if (!err) + err = lookup_last(nd, &path); ++ if (!err && gr_handle_symlink_owner(&link, nd->inode)) { ++ err = -EACCES; ++ } + put_link(nd, &link, cookie); + } + } +@@ -1753,6 +1775,21 @@ static int path_lookupat(int dfd, const char *name, + if (!err) + err = complete_walk(nd); + ++ if (!(nd->flags & LOOKUP_PARENT)) { ++#ifdef CONFIG_GRKERNSEC ++ if (flags & LOOKUP_RCU) { ++ if (!err) ++ path_put(&nd->path); ++ err = -ECHILD; ++ } else ++#endif ++ if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) { ++ if (!err) ++ path_put(&nd->path); ++ err = -ENOENT; ++ } ++ } ++ + if (!err && nd->flags & LOOKUP_DIRECTORY) { + if (!nd->inode->i_op->lookup) { + path_put(&nd->path); +@@ -1780,6 +1817,15 @@ static int do_path_lookup(int dfd, const char *name, + retval = path_lookupat(dfd, name, flags | LOOKUP_REVAL, nd); + + if (likely(!retval)) { ++ if (*name != '/' && nd->path.dentry && nd->inode) { ++#ifdef CONFIG_GRKERNSEC ++ if (flags & LOOKUP_RCU) ++ return -ECHILD; ++#endif ++ if (!gr_chroot_fchdir(nd->path.dentry, nd->path.mnt)) ++ return -ENOENT; ++ } ++ + if (unlikely(!audit_dummy_context())) { + if (nd->path.dentry && nd->inode) + audit_inode(name, nd->path.dentry); +@@ -2126,6 +2172,13 @@ static int may_open(struct path *path, int acc_mode, int flag) + if (flag & O_NOATIME && !inode_owner_or_capable(inode)) + return -EPERM; + ++ if (gr_handle_rofs_blockwrite(dentry, path->mnt, acc_mode)) ++ return -EPERM; ++ if (gr_handle_rawio(inode)) ++ return -EPERM; ++ if (!gr_acl_handle_open(dentry, path->mnt, acc_mode)) ++ return -EACCES; ++ + return 0; + } + +@@ -2187,6 +2240,16 @@ static struct file *do_last(struct nameidata *nd, struct path *path, + error = complete_walk(nd); + if (error) + return ERR_PTR(error); ++#ifdef CONFIG_GRKERNSEC ++ if (nd->flags & LOOKUP_RCU) { ++ error = -ECHILD; ++ goto exit; ++ } ++#endif ++ if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) { ++ error = -ENOENT; ++ goto exit; ++ } + audit_inode(pathname, nd->path.dentry); + if (open_flag & O_CREAT) { + error = -EISDIR; +@@ -2197,6 +2260,16 @@ static struct file *do_last(struct nameidata *nd, struct path *path, + error = complete_walk(nd); + if (error) + return ERR_PTR(error); ++#ifdef CONFIG_GRKERNSEC ++ if (nd->flags & LOOKUP_RCU) { ++ error = -ECHILD; ++ goto exit; ++ } ++#endif ++ if (!gr_acl_handle_hidden_file(dir, nd->path.mnt)) { ++ error = -ENOENT; ++ goto exit; ++ } + audit_inode(pathname, dir); + goto ok; + } +@@ -2218,6 +2291,16 @@ static struct file *do_last(struct nameidata *nd, struct path *path, + error = complete_walk(nd); + if (error) + return ERR_PTR(error); ++#ifdef CONFIG_GRKERNSEC ++ if (nd->flags & LOOKUP_RCU) { ++ error = -ECHILD; ++ goto exit; ++ } ++#endif ++ if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) { ++ error = -ENOENT; ++ goto exit; ++ } + + error = -ENOTDIR; + if (nd->flags & LOOKUP_DIRECTORY) { +@@ -2258,6 +2341,12 @@ static struct file *do_last(struct nameidata *nd, struct path *path, + /* Negative dentry, just create the file */ + if (!dentry->d_inode) { + umode_t mode = op->mode; ++ ++ if (!gr_acl_handle_creat(path->dentry, nd->path.dentry, path->mnt, open_flag, acc_mode, mode)) { ++ error = -EACCES; ++ goto exit_mutex_unlock; ++ } ++ + if (!IS_POSIXACL(dir->d_inode)) + mode &= ~current_umask(); + /* +@@ -2281,6 +2370,8 @@ static struct file *do_last(struct nameidata *nd, struct path *path, + error = vfs_create(dir->d_inode, dentry, mode, nd); + if (error) + goto exit_mutex_unlock; ++ else ++ gr_handle_create(path->dentry, path->mnt); + mutex_unlock(&dir->d_inode->i_mutex); + dput(nd->path.dentry); + nd->path.dentry = dentry; +@@ -2290,6 +2381,19 @@ static struct file *do_last(struct nameidata *nd, struct path *path, + /* + * It already exists. + */ ++ ++ if (!gr_acl_handle_hidden_file(dentry, nd->path.mnt)) { ++ error = -ENOENT; ++ goto exit_mutex_unlock; ++ } ++ ++ /* only check if O_CREAT is specified, all other checks need to go ++ into may_open */ ++ if (gr_handle_fifo(path->dentry, path->mnt, dir, open_flag, acc_mode)) { ++ error = -EACCES; ++ goto exit_mutex_unlock; ++ } ++ + mutex_unlock(&dir->d_inode->i_mutex); + audit_inode(pathname, path->dentry); + +@@ -2407,8 +2511,14 @@ static struct file *path_openat(int dfd, const char *pathname, + error = follow_link(&link, nd, &cookie); + if (unlikely(error)) + filp = ERR_PTR(error); +- else ++ else { + filp = do_last(nd, &path, op, pathname); ++ if (!IS_ERR(filp) && gr_handle_symlink_owner(&link, nd->inode)) { ++ if (filp) ++ fput(filp); ++ filp = ERR_PTR(-EACCES); ++ } ++ } + put_link(nd, &link, cookie); + } + out: +@@ -2502,6 +2612,11 @@ struct dentry *kern_path_create(int dfd, const char *pathname, struct path *path + *path = nd.path; + return dentry; + eexist: ++ if (!gr_acl_handle_hidden_file(dentry, nd.path.mnt)) { ++ dput(dentry); ++ dentry = ERR_PTR(-ENOENT); ++ goto fail; ++ } + dput(dentry); + dentry = ERR_PTR(-EEXIST); + fail: +@@ -2524,6 +2639,20 @@ struct dentry *user_path_create(int dfd, const char __user *pathname, struct pat + } + EXPORT_SYMBOL(user_path_create); + ++static struct dentry *user_path_create_with_name(int dfd, const char __user *pathname, struct path *path, char **to, int is_dir) ++{ ++ char *tmp = getname(pathname); ++ struct dentry *res; ++ if (IS_ERR(tmp)) ++ return ERR_CAST(tmp); ++ res = kern_path_create(dfd, tmp, path, is_dir); ++ if (IS_ERR(res)) ++ putname(tmp); ++ else ++ *to = tmp; ++ return res; ++} ++ + int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev) + { + int error = may_create(dir, dentry); +@@ -2591,6 +2720,17 @@ SYSCALL_DEFINE4(mknodat, int, dfd, const char __user *, filename, umode_t, mode, + error = mnt_want_write(path.mnt); + if (error) + goto out_dput; ++ ++ if (gr_handle_chroot_mknod(dentry, path.mnt, mode)) { ++ error = -EPERM; ++ goto out_drop_write; ++ } ++ ++ if (!gr_acl_handle_mknod(dentry, path.dentry, path.mnt, mode)) { ++ error = -EACCES; ++ goto out_drop_write; ++ } ++ + error = security_path_mknod(&path, dentry, mode, dev); + if (error) + goto out_drop_write; +@@ -2608,6 +2748,9 @@ SYSCALL_DEFINE4(mknodat, int, dfd, const char __user *, filename, umode_t, mode, + } + out_drop_write: + mnt_drop_write(path.mnt); ++ ++ if (!error) ++ gr_handle_create(dentry, path.mnt); + out_dput: + dput(dentry); + mutex_unlock(&path.dentry->d_inode->i_mutex); +@@ -2661,12 +2804,21 @@ SYSCALL_DEFINE3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode) + error = mnt_want_write(path.mnt); + if (error) + goto out_dput; ++ ++ if (!gr_acl_handle_mkdir(dentry, path.dentry, path.mnt)) { ++ error = -EACCES; ++ goto out_drop_write; ++ } ++ + error = security_path_mkdir(&path, dentry, mode); + if (error) + goto out_drop_write; + error = vfs_mkdir(path.dentry->d_inode, dentry, mode); + out_drop_write: + mnt_drop_write(path.mnt); ++ ++ if (!error) ++ gr_handle_create(dentry, path.mnt); + out_dput: + dput(dentry); + mutex_unlock(&path.dentry->d_inode->i_mutex); +@@ -2746,6 +2898,8 @@ static long do_rmdir(int dfd, const char __user *pathname) + char * name; + struct dentry *dentry; + struct nameidata nd; ++ ino_t saved_ino = 0; ++ dev_t saved_dev = 0; + + error = user_path_parent(dfd, pathname, &nd, &name); + if (error) +@@ -2774,6 +2928,15 @@ static long do_rmdir(int dfd, const char __user *pathname) + error = -ENOENT; + goto exit3; + } ++ ++ saved_ino = dentry->d_inode->i_ino; ++ saved_dev = gr_get_dev_from_dentry(dentry); ++ ++ if (!gr_acl_handle_rmdir(dentry, nd.path.mnt)) { ++ error = -EACCES; ++ goto exit3; ++ } ++ + error = mnt_want_write(nd.path.mnt); + if (error) + goto exit3; +@@ -2781,6 +2944,8 @@ static long do_rmdir(int dfd, const char __user *pathname) + if (error) + goto exit4; + error = vfs_rmdir(nd.path.dentry->d_inode, dentry); ++ if (!error && (saved_dev || saved_ino)) ++ gr_handle_delete(saved_ino, saved_dev); + exit4: + mnt_drop_write(nd.path.mnt); + exit3: +@@ -2843,6 +3008,8 @@ static long do_unlinkat(int dfd, const char __user *pathname) + struct dentry *dentry; + struct nameidata nd; + struct inode *inode = NULL; ++ ino_t saved_ino = 0; ++ dev_t saved_dev = 0; + + error = user_path_parent(dfd, pathname, &nd, &name); + if (error) +@@ -2865,6 +3032,16 @@ static long do_unlinkat(int dfd, const char __user *pathname) + if (!inode) + goto slashes; + ihold(inode); ++ ++ if (inode->i_nlink <= 1) { ++ saved_ino = inode->i_ino; ++ saved_dev = gr_get_dev_from_dentry(dentry); ++ } ++ if (!gr_acl_handle_unlink(dentry, nd.path.mnt)) { ++ error = -EACCES; ++ goto exit2; ++ } ++ + error = mnt_want_write(nd.path.mnt); + if (error) + goto exit2; +@@ -2872,6 +3049,8 @@ static long do_unlinkat(int dfd, const char __user *pathname) + if (error) + goto exit3; + error = vfs_unlink(nd.path.dentry->d_inode, dentry); ++ if (!error && (saved_ino || saved_dev)) ++ gr_handle_delete(saved_ino, saved_dev); + exit3: + mnt_drop_write(nd.path.mnt); + exit2: +@@ -2947,10 +3126,18 @@ SYSCALL_DEFINE3(symlinkat, const char __user *, oldname, + error = mnt_want_write(path.mnt); + if (error) + goto out_dput; ++ ++ if (!gr_acl_handle_symlink(dentry, path.dentry, path.mnt, from)) { ++ error = -EACCES; ++ goto out_drop_write; ++ } ++ + error = security_path_symlink(&path, dentry, from); + if (error) + goto out_drop_write; + error = vfs_symlink(path.dentry->d_inode, dentry, from); ++ if (!error) ++ gr_handle_create(dentry, path.mnt); + out_drop_write: + mnt_drop_write(path.mnt); + out_dput: +@@ -3025,6 +3212,7 @@ SYSCALL_DEFINE5(linkat, int, olddfd, const char __user *, oldname, + { + struct dentry *new_dentry; + struct path old_path, new_path; ++ char *to = NULL; + int how = 0; + int error; + +@@ -3048,7 +3236,7 @@ SYSCALL_DEFINE5(linkat, int, olddfd, const char __user *, oldname, + if (error) + return error; + +- new_dentry = user_path_create(newdfd, newname, &new_path, 0); ++ new_dentry = user_path_create_with_name(newdfd, newname, &new_path, &to, 0); + error = PTR_ERR(new_dentry); + if (IS_ERR(new_dentry)) + goto out; +@@ -3059,13 +3247,30 @@ SYSCALL_DEFINE5(linkat, int, olddfd, const char __user *, oldname, + error = mnt_want_write(new_path.mnt); + if (error) + goto out_dput; ++ ++ if (gr_handle_hardlink(old_path.dentry, old_path.mnt, ++ old_path.dentry->d_inode, ++ old_path.dentry->d_inode->i_mode, to)) { ++ error = -EACCES; ++ goto out_drop_write; ++ } ++ ++ if (!gr_acl_handle_link(new_dentry, new_path.dentry, new_path.mnt, ++ old_path.dentry, old_path.mnt, to)) { ++ error = -EACCES; ++ goto out_drop_write; ++ } ++ + error = security_path_link(old_path.dentry, &new_path, new_dentry); + if (error) + goto out_drop_write; + error = vfs_link(old_path.dentry, new_path.dentry->d_inode, new_dentry); ++ if (!error) ++ gr_handle_create(new_dentry, new_path.mnt); + out_drop_write: + mnt_drop_write(new_path.mnt); + out_dput: ++ putname(to); + dput(new_dentry); + mutex_unlock(&new_path.dentry->d_inode->i_mutex); + path_put(&new_path); +@@ -3299,6 +3504,12 @@ SYSCALL_DEFINE4(renameat, int, olddfd, const char __user *, oldname, + if (new_dentry == trap) + goto exit5; + ++ error = gr_acl_handle_rename(new_dentry, new_dir, newnd.path.mnt, ++ old_dentry, old_dir->d_inode, oldnd.path.mnt, ++ to); ++ if (error) ++ goto exit5; ++ + error = mnt_want_write(oldnd.path.mnt); + if (error) + goto exit5; +@@ -3308,6 +3519,9 @@ SYSCALL_DEFINE4(renameat, int, olddfd, const char __user *, oldname, + goto exit6; + error = vfs_rename(old_dir->d_inode, old_dentry, + new_dir->d_inode, new_dentry); ++ if (!error) ++ gr_handle_rename(old_dir->d_inode, new_dir->d_inode, old_dentry, ++ new_dentry, oldnd.path.mnt, new_dentry->d_inode ? 1 : 0); + exit6: + mnt_drop_write(oldnd.path.mnt); + exit5: +@@ -3333,6 +3547,8 @@ SYSCALL_DEFINE2(rename, const char __user *, oldname, const char __user *, newna + + int vfs_readlink(struct dentry *dentry, char __user *buffer, int buflen, const char *link) + { ++ char tmpbuf[64]; ++ const char *newlink; + int len; + + len = PTR_ERR(link); +@@ -3342,7 +3558,14 @@ int vfs_readlink(struct dentry *dentry, char __user *buffer, int buflen, const c + len = strlen(link); + if (len > (unsigned) buflen) + len = buflen; +- if (copy_to_user(buffer, link, len)) ++ ++ if (len < sizeof(tmpbuf)) { ++ memcpy(tmpbuf, link, len); ++ newlink = tmpbuf; ++ } else ++ newlink = link; ++ ++ if (copy_to_user(buffer, newlink, len)) + len = -EFAULT; + out: + return len; +diff --git a/fs/namespace.c b/fs/namespace.c +index 4e46539..b28253c 100644 +--- a/fs/namespace.c ++++ b/fs/namespace.c +@@ -1156,6 +1156,9 @@ static int do_umount(struct mount *mnt, int flags) + if (!(sb->s_flags & MS_RDONLY)) + retval = do_remount_sb(sb, MS_RDONLY, NULL, 0); + up_write(&sb->s_umount); ++ ++ gr_log_remount(mnt->mnt_devname, retval); ++ + return retval; + } + +@@ -1175,6 +1178,9 @@ static int do_umount(struct mount *mnt, int flags) + br_write_unlock(vfsmount_lock); + up_write(&namespace_sem); + release_mounts(&umount_list); ++ ++ gr_log_unmount(mnt->mnt_devname, retval); ++ + return retval; + } + +@@ -2176,6 +2182,16 @@ long do_mount(char *dev_name, char *dir_name, char *type_page, + MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT | + MS_STRICTATIME); + ++ if (gr_handle_rofs_mount(path.dentry, path.mnt, mnt_flags)) { ++ retval = -EPERM; ++ goto dput_out; ++ } ++ ++ if (gr_handle_chroot_mount(path.dentry, path.mnt, dev_name)) { ++ retval = -EPERM; ++ goto dput_out; ++ } ++ + if (flags & MS_REMOUNT) + retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags, + data_page); +@@ -2190,6 +2206,9 @@ long do_mount(char *dev_name, char *dir_name, char *type_page, + dev_name, data_page); + dput_out: + path_put(&path); ++ ++ gr_log_mount(dev_name, dir_name, retval); ++ + return retval; + } + +@@ -2471,6 +2490,11 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root, + if (error) + goto out2; + ++ if (gr_handle_chroot_pivot()) { ++ error = -EPERM; ++ goto out2; ++ } ++ + get_fs_root(current->fs, &root); + error = lock_mount(&old); + if (error) +diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c +index e8bbfa5..864f936 100644 +--- a/fs/nfs/inode.c ++++ b/fs/nfs/inode.c +@@ -152,7 +152,7 @@ static void nfs_zap_caches_locked(struct inode *inode) + nfsi->attrtimeo = NFS_MINATTRTIMEO(inode); + nfsi->attrtimeo_timestamp = jiffies; + +- memset(NFS_COOKIEVERF(inode), 0, sizeof(NFS_COOKIEVERF(inode))); ++ memset(NFS_COOKIEVERF(inode), 0, sizeof(NFS_I(inode)->cookieverf)); + if (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)) + nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL|NFS_INO_REVAL_PAGECACHE; + else +@@ -1005,16 +1005,16 @@ static int nfs_size_need_update(const struct inode *inode, const struct nfs_fatt + return nfs_size_to_loff_t(fattr->size) > i_size_read(inode); + } + +-static atomic_long_t nfs_attr_generation_counter; ++static atomic_long_unchecked_t nfs_attr_generation_counter; + + static unsigned long nfs_read_attr_generation_counter(void) + { +- return atomic_long_read(&nfs_attr_generation_counter); ++ return atomic_long_read_unchecked(&nfs_attr_generation_counter); + } + + unsigned long nfs_inc_attr_generation_counter(void) + { +- return atomic_long_inc_return(&nfs_attr_generation_counter); ++ return atomic_long_inc_return_unchecked(&nfs_attr_generation_counter); + } + + void nfs_fattr_init(struct nfs_fattr *fattr) +diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c +index 5686661..80a9a3a 100644 +--- a/fs/nfsd/vfs.c ++++ b/fs/nfsd/vfs.c +@@ -933,7 +933,7 @@ nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file, + } else { + oldfs = get_fs(); + set_fs(KERNEL_DS); +- host_err = vfs_readv(file, (struct iovec __user *)vec, vlen, &offset); ++ host_err = vfs_readv(file, (struct iovec __force_user *)vec, vlen, &offset); + set_fs(oldfs); + } + +@@ -1037,7 +1037,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file, + + /* Write the data. */ + oldfs = get_fs(); set_fs(KERNEL_DS); +- host_err = vfs_writev(file, (struct iovec __user *)vec, vlen, &offset); ++ host_err = vfs_writev(file, (struct iovec __force_user *)vec, vlen, &offset); + set_fs(oldfs); + if (host_err < 0) + goto out_nfserr; +@@ -1573,7 +1573,7 @@ nfsd_readlink(struct svc_rqst *rqstp, struct svc_fh *fhp, char *buf, int *lenp) + */ + + oldfs = get_fs(); set_fs(KERNEL_DS); +- host_err = inode->i_op->readlink(path.dentry, buf, *lenp); ++ host_err = inode->i_op->readlink(path.dentry, (char __force_user *)buf, *lenp); + set_fs(oldfs); + + if (host_err < 0) +diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c +index 3568c8a..e0240d8 100644 +--- a/fs/notify/fanotify/fanotify_user.c ++++ b/fs/notify/fanotify/fanotify_user.c +@@ -278,7 +278,8 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group, + goto out_close_fd; + + ret = -EFAULT; +- if (copy_to_user(buf, &fanotify_event_metadata, ++ if (fanotify_event_metadata.event_len > sizeof fanotify_event_metadata || ++ copy_to_user(buf, &fanotify_event_metadata, + fanotify_event_metadata.event_len)) + goto out_kill_access_response; + +diff --git a/fs/notify/notification.c b/fs/notify/notification.c +index c887b13..0fdf472 100644 +--- a/fs/notify/notification.c ++++ b/fs/notify/notification.c +@@ -57,7 +57,7 @@ static struct kmem_cache *fsnotify_event_holder_cachep; + * get set to 0 so it will never get 'freed' + */ + static struct fsnotify_event *q_overflow_event; +-static atomic_t fsnotify_sync_cookie = ATOMIC_INIT(0); ++static atomic_unchecked_t fsnotify_sync_cookie = ATOMIC_INIT(0); + + /** + * fsnotify_get_cookie - return a unique cookie for use in synchronizing events. +@@ -65,7 +65,7 @@ static atomic_t fsnotify_sync_cookie = ATOMIC_INIT(0); + */ + u32 fsnotify_get_cookie(void) + { +- return atomic_inc_return(&fsnotify_sync_cookie); ++ return atomic_inc_return_unchecked(&fsnotify_sync_cookie); + } + EXPORT_SYMBOL_GPL(fsnotify_get_cookie); + +diff --git a/fs/ntfs/dir.c b/fs/ntfs/dir.c +index 99e3610..02c1068 100644 +--- a/fs/ntfs/dir.c ++++ b/fs/ntfs/dir.c +@@ -1329,7 +1329,7 @@ find_next_index_buffer: + ia = (INDEX_ALLOCATION*)(kaddr + (ia_pos & ~PAGE_CACHE_MASK & + ~(s64)(ndir->itype.index.block_size - 1))); + /* Bounds checks. */ +- if (unlikely((u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE)) { ++ if (unlikely(!kaddr || (u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE)) { + ntfs_error(sb, "Out of bounds check failed. Corrupt directory " + "inode 0x%lx or driver bug.", vdir->i_ino); + goto err_out; +diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c +index 8639169..76697aa 100644 +--- a/fs/ntfs/file.c ++++ b/fs/ntfs/file.c +@@ -2229,6 +2229,6 @@ const struct inode_operations ntfs_file_inode_ops = { + #endif /* NTFS_RW */ + }; + +-const struct file_operations ntfs_empty_file_ops = {}; ++const struct file_operations ntfs_empty_file_ops __read_only; + +-const struct inode_operations ntfs_empty_inode_ops = {}; ++const struct inode_operations ntfs_empty_inode_ops __read_only; +diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c +index 210c352..a174f83 100644 +--- a/fs/ocfs2/localalloc.c ++++ b/fs/ocfs2/localalloc.c +@@ -1283,7 +1283,7 @@ static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb, + goto bail; + } + +- atomic_inc(&osb->alloc_stats.moves); ++ atomic_inc_unchecked(&osb->alloc_stats.moves); + + bail: + if (handle) +diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h +index d355e6e..578d905 100644 +--- a/fs/ocfs2/ocfs2.h ++++ b/fs/ocfs2/ocfs2.h +@@ -235,11 +235,11 @@ enum ocfs2_vol_state + + struct ocfs2_alloc_stats + { +- atomic_t moves; +- atomic_t local_data; +- atomic_t bitmap_data; +- atomic_t bg_allocs; +- atomic_t bg_extends; ++ atomic_unchecked_t moves; ++ atomic_unchecked_t local_data; ++ atomic_unchecked_t bitmap_data; ++ atomic_unchecked_t bg_allocs; ++ atomic_unchecked_t bg_extends; + }; + + enum ocfs2_local_alloc_state +diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c +index f169da4..9112253 100644 +--- a/fs/ocfs2/suballoc.c ++++ b/fs/ocfs2/suballoc.c +@@ -872,7 +872,7 @@ static int ocfs2_reserve_suballoc_bits(struct ocfs2_super *osb, + mlog_errno(status); + goto bail; + } +- atomic_inc(&osb->alloc_stats.bg_extends); ++ atomic_inc_unchecked(&osb->alloc_stats.bg_extends); + + /* You should never ask for this much metadata */ + BUG_ON(bits_wanted > +@@ -2008,7 +2008,7 @@ int ocfs2_claim_metadata(handle_t *handle, + mlog_errno(status); + goto bail; + } +- atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs); ++ atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs); + + *suballoc_loc = res.sr_bg_blkno; + *suballoc_bit_start = res.sr_bit_offset; +@@ -2172,7 +2172,7 @@ int ocfs2_claim_new_inode_at_loc(handle_t *handle, + trace_ocfs2_claim_new_inode_at_loc((unsigned long long)di_blkno, + res->sr_bits); + +- atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs); ++ atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs); + + BUG_ON(res->sr_bits != 1); + +@@ -2214,7 +2214,7 @@ int ocfs2_claim_new_inode(handle_t *handle, + mlog_errno(status); + goto bail; + } +- atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs); ++ atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs); + + BUG_ON(res.sr_bits != 1); + +@@ -2318,7 +2318,7 @@ int __ocfs2_claim_clusters(handle_t *handle, + cluster_start, + num_clusters); + if (!status) +- atomic_inc(&osb->alloc_stats.local_data); ++ atomic_inc_unchecked(&osb->alloc_stats.local_data); + } else { + if (min_clusters > (osb->bitmap_cpg - 1)) { + /* The only paths asking for contiguousness +@@ -2344,7 +2344,7 @@ int __ocfs2_claim_clusters(handle_t *handle, + ocfs2_desc_bitmap_to_cluster_off(ac->ac_inode, + res.sr_bg_blkno, + res.sr_bit_offset); +- atomic_inc(&osb->alloc_stats.bitmap_data); ++ atomic_inc_unchecked(&osb->alloc_stats.bitmap_data); + *num_clusters = res.sr_bits; + } + } +diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c +index 68f4541..89cfe6a 100644 +--- a/fs/ocfs2/super.c ++++ b/fs/ocfs2/super.c +@@ -301,11 +301,11 @@ static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len) + "%10s => GlobalAllocs: %d LocalAllocs: %d " + "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n", + "Stats", +- atomic_read(&osb->alloc_stats.bitmap_data), +- atomic_read(&osb->alloc_stats.local_data), +- atomic_read(&osb->alloc_stats.bg_allocs), +- atomic_read(&osb->alloc_stats.moves), +- atomic_read(&osb->alloc_stats.bg_extends)); ++ atomic_read_unchecked(&osb->alloc_stats.bitmap_data), ++ atomic_read_unchecked(&osb->alloc_stats.local_data), ++ atomic_read_unchecked(&osb->alloc_stats.bg_allocs), ++ atomic_read_unchecked(&osb->alloc_stats.moves), ++ atomic_read_unchecked(&osb->alloc_stats.bg_extends)); + + out += snprintf(buf + out, len - out, + "%10s => State: %u Descriptor: %llu Size: %u bits " +@@ -2116,11 +2116,11 @@ static int ocfs2_initialize_super(struct super_block *sb, + spin_lock_init(&osb->osb_xattr_lock); + ocfs2_init_steal_slots(osb); + +- atomic_set(&osb->alloc_stats.moves, 0); +- atomic_set(&osb->alloc_stats.local_data, 0); +- atomic_set(&osb->alloc_stats.bitmap_data, 0); +- atomic_set(&osb->alloc_stats.bg_allocs, 0); +- atomic_set(&osb->alloc_stats.bg_extends, 0); ++ atomic_set_unchecked(&osb->alloc_stats.moves, 0); ++ atomic_set_unchecked(&osb->alloc_stats.local_data, 0); ++ atomic_set_unchecked(&osb->alloc_stats.bitmap_data, 0); ++ atomic_set_unchecked(&osb->alloc_stats.bg_allocs, 0); ++ atomic_set_unchecked(&osb->alloc_stats.bg_extends, 0); + + /* Copy the blockcheck stats from the superblock probe */ + osb->osb_ecc_stats = *stats; +diff --git a/fs/ocfs2/symlink.c b/fs/ocfs2/symlink.c +index 5d22872..523db20 100644 +--- a/fs/ocfs2/symlink.c ++++ b/fs/ocfs2/symlink.c +@@ -142,7 +142,7 @@ bail: + + static void ocfs2_fast_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie) + { +- char *link = nd_get_link(nd); ++ const char *link = nd_get_link(nd); + if (!IS_ERR(link)) + kfree(link); + } +diff --git a/fs/open.c b/fs/open.c +index 3f1108b..822d7f7 100644 +--- a/fs/open.c ++++ b/fs/open.c +@@ -31,6 +31,8 @@ + #include <linux/ima.h> + #include <linux/dnotify.h> + ++#define CREATE_TRACE_POINTS ++#include <trace/events/fs.h> + #include "internal.h" + + int do_truncate(struct dentry *dentry, loff_t length, unsigned int time_attrs, +@@ -112,6 +114,10 @@ static long do_sys_truncate(const char __user *pathname, loff_t length) + error = locks_verify_truncate(inode, NULL, length); + if (!error) + error = security_path_truncate(&path); ++ ++ if (!error && !gr_acl_handle_truncate(path.dentry, path.mnt)) ++ error = -EACCES; ++ + if (!error) + error = do_truncate(path.dentry, length, 0, NULL); + +@@ -358,6 +364,9 @@ SYSCALL_DEFINE3(faccessat, int, dfd, const char __user *, filename, int, mode) + if (__mnt_is_readonly(path.mnt)) + res = -EROFS; + ++ if (!res && !gr_acl_handle_access(path.dentry, path.mnt, mode)) ++ res = -EACCES; ++ + out_path_release: + path_put(&path); + out: +@@ -384,6 +393,8 @@ SYSCALL_DEFINE1(chdir, const char __user *, filename) + if (error) + goto dput_and_out; + ++ gr_log_chdir(path.dentry, path.mnt); ++ + set_fs_pwd(current->fs, &path); + + dput_and_out: +@@ -410,6 +421,13 @@ SYSCALL_DEFINE1(fchdir, unsigned int, fd) + goto out_putf; + + error = inode_permission(inode, MAY_EXEC | MAY_CHDIR); ++ ++ if (!error && !gr_chroot_fchdir(file->f_path.dentry, file->f_path.mnt)) ++ error = -EPERM; ++ ++ if (!error) ++ gr_log_chdir(file->f_path.dentry, file->f_path.mnt); ++ + if (!error) + set_fs_pwd(current->fs, &file->f_path); + out_putf: +@@ -438,7 +456,13 @@ SYSCALL_DEFINE1(chroot, const char __user *, filename) + if (error) + goto dput_and_out; + ++ if (gr_handle_chroot_chroot(path.dentry, path.mnt)) ++ goto dput_and_out; ++ + set_fs_root(current->fs, &path); ++ ++ gr_handle_chroot_chdir(&path); ++ + error = 0; + dput_and_out: + path_put(&path); +@@ -456,6 +480,16 @@ static int chmod_common(struct path *path, umode_t mode) + if (error) + return error; + mutex_lock(&inode->i_mutex); ++ ++ if (!gr_acl_handle_chmod(path->dentry, path->mnt, &mode)) { ++ error = -EACCES; ++ goto out_unlock; ++ } ++ if (gr_handle_chroot_chmod(path->dentry, path->mnt, mode)) { ++ error = -EACCES; ++ goto out_unlock; ++ } ++ + error = security_path_chmod(path, mode); + if (error) + goto out_unlock; +@@ -506,6 +540,9 @@ static int chown_common(struct path *path, uid_t user, gid_t group) + int error; + struct iattr newattrs; + ++ if (!gr_acl_handle_chown(path->dentry, path->mnt)) ++ return -EACCES; ++ + newattrs.ia_valid = ATTR_CTIME; + if (user != (uid_t) -1) { + newattrs.ia_valid |= ATTR_UID; +@@ -987,6 +1024,7 @@ long do_sys_open(int dfd, const char __user *filename, int flags, umode_t mode) + } else { + fsnotify_open(f); + fd_install(fd, f); ++ trace_do_sys_open(tmp, flags, mode); + } + } + putname(tmp); +diff --git a/fs/pipe.c b/fs/pipe.c +index fec5e4a..f4210f9 100644 +--- a/fs/pipe.c ++++ b/fs/pipe.c +@@ -438,9 +438,9 @@ redo: + } + if (bufs) /* More to do? */ + continue; +- if (!pipe->writers) ++ if (!atomic_read(&pipe->writers)) + break; +- if (!pipe->waiting_writers) { ++ if (!atomic_read(&pipe->waiting_writers)) { + /* syscall merging: Usually we must not sleep + * if O_NONBLOCK is set, or if we got some data. + * But if a writer sleeps in kernel space, then +@@ -504,7 +504,7 @@ pipe_write(struct kiocb *iocb, const struct iovec *_iov, + mutex_lock(&inode->i_mutex); + pipe = inode->i_pipe; + +- if (!pipe->readers) { ++ if (!atomic_read(&pipe->readers)) { + send_sig(SIGPIPE, current, 0); + ret = -EPIPE; + goto out; +@@ -553,7 +553,7 @@ redo1: + for (;;) { + int bufs; + +- if (!pipe->readers) { ++ if (!atomic_read(&pipe->readers)) { + send_sig(SIGPIPE, current, 0); + if (!ret) + ret = -EPIPE; +@@ -644,9 +644,9 @@ redo2: + kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN); + do_wakeup = 0; + } +- pipe->waiting_writers++; ++ atomic_inc(&pipe->waiting_writers); + pipe_wait(pipe); +- pipe->waiting_writers--; ++ atomic_dec(&pipe->waiting_writers); + } + out: + mutex_unlock(&inode->i_mutex); +@@ -713,7 +713,7 @@ pipe_poll(struct file *filp, poll_table *wait) + mask = 0; + if (filp->f_mode & FMODE_READ) { + mask = (nrbufs > 0) ? POLLIN | POLLRDNORM : 0; +- if (!pipe->writers && filp->f_version != pipe->w_counter) ++ if (!atomic_read(&pipe->writers) && filp->f_version != pipe->w_counter) + mask |= POLLHUP; + } + +@@ -723,7 +723,7 @@ pipe_poll(struct file *filp, poll_table *wait) + * Most Unices do not set POLLERR for FIFOs but on Linux they + * behave exactly like pipes for poll(). + */ +- if (!pipe->readers) ++ if (!atomic_read(&pipe->readers)) + mask |= POLLERR; + } + +@@ -737,10 +737,10 @@ pipe_release(struct inode *inode, int decr, int decw) + + mutex_lock(&inode->i_mutex); + pipe = inode->i_pipe; +- pipe->readers -= decr; +- pipe->writers -= decw; ++ atomic_sub(decr, &pipe->readers); ++ atomic_sub(decw, &pipe->writers); + +- if (!pipe->readers && !pipe->writers) { ++ if (!atomic_read(&pipe->readers) && !atomic_read(&pipe->writers)) { + free_pipe_info(inode); + } else { + wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM | POLLERR | POLLHUP); +@@ -830,7 +830,7 @@ pipe_read_open(struct inode *inode, struct file *filp) + + if (inode->i_pipe) { + ret = 0; +- inode->i_pipe->readers++; ++ atomic_inc(&inode->i_pipe->readers); + } + + mutex_unlock(&inode->i_mutex); +@@ -847,7 +847,7 @@ pipe_write_open(struct inode *inode, struct file *filp) + + if (inode->i_pipe) { + ret = 0; +- inode->i_pipe->writers++; ++ atomic_inc(&inode->i_pipe->writers); + } + + mutex_unlock(&inode->i_mutex); +@@ -865,9 +865,9 @@ pipe_rdwr_open(struct inode *inode, struct file *filp) + if (inode->i_pipe) { + ret = 0; + if (filp->f_mode & FMODE_READ) +- inode->i_pipe->readers++; ++ atomic_inc(&inode->i_pipe->readers); + if (filp->f_mode & FMODE_WRITE) +- inode->i_pipe->writers++; ++ atomic_inc(&inode->i_pipe->writers); + } + + mutex_unlock(&inode->i_mutex); +@@ -959,7 +959,7 @@ void free_pipe_info(struct inode *inode) + inode->i_pipe = NULL; + } + +-static struct vfsmount *pipe_mnt __read_mostly; ++struct vfsmount *pipe_mnt __read_mostly; + + /* + * pipefs_dname() is called from d_path(). +@@ -989,7 +989,8 @@ static struct inode * get_pipe_inode(void) + goto fail_iput; + inode->i_pipe = pipe; + +- pipe->readers = pipe->writers = 1; ++ atomic_set(&pipe->readers, 1); ++ atomic_set(&pipe->writers, 1); + inode->i_fop = &rdwr_pipefifo_fops; + + /* +diff --git a/fs/proc/Kconfig b/fs/proc/Kconfig +index 15af622..0e9f4467 100644 +--- a/fs/proc/Kconfig ++++ b/fs/proc/Kconfig +@@ -30,12 +30,12 @@ config PROC_FS + + config PROC_KCORE + bool "/proc/kcore support" if !ARM +- depends on PROC_FS && MMU ++ depends on PROC_FS && MMU && !GRKERNSEC_PROC_ADD + + config PROC_VMCORE + bool "/proc/vmcore support" +- depends on PROC_FS && CRASH_DUMP +- default y ++ depends on PROC_FS && CRASH_DUMP && !GRKERNSEC ++ default n + help + Exports the dump image of crashed kernel in ELF format. + +@@ -59,8 +59,8 @@ config PROC_SYSCTL + limited in memory. + + config PROC_PAGE_MONITOR +- default y +- depends on PROC_FS && MMU ++ default n ++ depends on PROC_FS && MMU && !GRKERNSEC + bool "Enable /proc page monitoring" if EXPERT + help + Various /proc files exist to monitor process memory utilization: +diff --git a/fs/proc/array.c b/fs/proc/array.c +index f9bd395..acb7847 100644 +--- a/fs/proc/array.c ++++ b/fs/proc/array.c +@@ -60,6 +60,7 @@ + #include <linux/tty.h> + #include <linux/string.h> + #include <linux/mman.h> ++#include <linux/grsecurity.h> + #include <linux/proc_fs.h> + #include <linux/ioport.h> + #include <linux/uaccess.h> +@@ -337,6 +338,21 @@ static void task_cpus_allowed(struct seq_file *m, struct task_struct *task) + seq_putc(m, '\n'); + } + ++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR) ++static inline void task_pax(struct seq_file *m, struct task_struct *p) ++{ ++ if (p->mm) ++ seq_printf(m, "PaX:\t%c%c%c%c%c\n", ++ p->mm->pax_flags & MF_PAX_PAGEEXEC ? 'P' : 'p', ++ p->mm->pax_flags & MF_PAX_EMUTRAMP ? 'E' : 'e', ++ p->mm->pax_flags & MF_PAX_MPROTECT ? 'M' : 'm', ++ p->mm->pax_flags & MF_PAX_RANDMMAP ? 'R' : 'r', ++ p->mm->pax_flags & MF_PAX_SEGMEXEC ? 'S' : 's'); ++ else ++ seq_printf(m, "PaX:\t-----\n"); ++} ++#endif ++ + int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, + struct pid *pid, struct task_struct *task) + { +@@ -354,9 +370,24 @@ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, + task_cpus_allowed(m, task); + cpuset_task_status_allowed(m, task); + task_context_switch_counts(m, task); ++ ++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR) ++ task_pax(m, task); ++#endif ++ ++#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC) ++ task_grsec_rbac(m, task); ++#endif ++ + return 0; + } + ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \ ++ (_mm->pax_flags & MF_PAX_RANDMMAP || \ ++ _mm->pax_flags & MF_PAX_SEGMEXEC)) ++#endif ++ + static int do_task_stat(struct seq_file *m, struct pid_namespace *ns, + struct pid *pid, struct task_struct *task, int whole) + { +@@ -378,6 +409,13 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns, + char tcomm[sizeof(task->comm)]; + unsigned long flags; + ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ if (current->exec_id != m->exec_id) { ++ gr_log_badprocpid("stat"); ++ return 0; ++ } ++#endif ++ + state = *get_task_state(task); + vsize = eip = esp = 0; + permitted = ptrace_may_access(task, PTRACE_MODE_READ | PTRACE_MODE_NOAUDIT); +@@ -449,6 +487,19 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns, + gtime = task->gtime; + } + ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ if (PAX_RAND_FLAGS(mm)) { ++ eip = 0; ++ esp = 0; ++ wchan = 0; ++ } ++#endif ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ wchan = 0; ++ eip =0; ++ esp =0; ++#endif ++ + /* scale priority and nice values from timeslices to -20..20 */ + /* to make it look like a "normal" Unix priority/nice value */ + priority = task_prio(task); +@@ -485,9 +536,15 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns, + seq_put_decimal_ull(m, ' ', vsize); + seq_put_decimal_ll(m, ' ', mm ? get_mm_rss(mm) : 0); + seq_put_decimal_ull(m, ' ', rsslim); ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->start_code : 1) : 0)); ++ seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->end_code : 1) : 0)); ++ seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 0 : ((permitted && mm) ? mm->start_stack : 0)); ++#else + seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->start_code : 1) : 0); + seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->end_code : 1) : 0); + seq_put_decimal_ull(m, ' ', (permitted && mm) ? mm->start_stack : 0); ++#endif + seq_put_decimal_ull(m, ' ', esp); + seq_put_decimal_ull(m, ' ', eip); + /* The signal information here is obsolete. +@@ -508,9 +565,15 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns, + seq_put_decimal_ull(m, ' ', delayacct_blkio_ticks(task)); + seq_put_decimal_ull(m, ' ', cputime_to_clock_t(gtime)); + seq_put_decimal_ll(m, ' ', cputime_to_clock_t(cgtime)); ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 0 : ((mm && permitted) ? mm->start_data : 0)); ++ seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 0 : ((mm && permitted) ? mm->end_data : 0)); ++ seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 0 : ((mm && permitted) ? mm->start_brk : 0)); ++#else + seq_put_decimal_ull(m, ' ', (mm && permitted) ? mm->start_data : 0); + seq_put_decimal_ull(m, ' ', (mm && permitted) ? mm->end_data : 0); + seq_put_decimal_ull(m, ' ', (mm && permitted) ? mm->start_brk : 0); ++#endif + seq_putc(m, '\n'); + if (mm) + mmput(mm); +@@ -533,8 +596,15 @@ int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns, + struct pid *pid, struct task_struct *task) + { + unsigned long size = 0, resident = 0, shared = 0, text = 0, data = 0; +- struct mm_struct *mm = get_task_mm(task); ++ struct mm_struct *mm; + ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ if (current->exec_id != m->exec_id) { ++ gr_log_badprocpid("statm"); ++ return 0; ++ } ++#endif ++ mm = get_task_mm(task); + if (mm) { + size = task_statm(mm, &shared, &text, &data, &resident); + mmput(mm); +@@ -556,3 +626,18 @@ int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns, + + return 0; + } ++ ++#ifdef CONFIG_GRKERNSEC_PROC_IPADDR ++int proc_pid_ipaddr(struct task_struct *task, char *buffer) ++{ ++ u32 curr_ip = 0; ++ unsigned long flags; ++ ++ if (lock_task_sighand(task, &flags)) { ++ curr_ip = task->signal->curr_ip; ++ unlock_task_sighand(task, &flags); ++ } ++ ++ return sprintf(buffer, "%pI4\n", &curr_ip); ++} ++#endif +diff --git a/fs/proc/base.c b/fs/proc/base.c +index 9fc77b4..4877d08 100644 +--- a/fs/proc/base.c ++++ b/fs/proc/base.c +@@ -109,6 +109,14 @@ struct pid_entry { + union proc_op op; + }; + ++struct getdents_callback { ++ struct linux_dirent __user * current_dir; ++ struct linux_dirent __user * previous; ++ struct file * file; ++ int count; ++ int error; ++}; ++ + #define NOD(NAME, MODE, IOP, FOP, OP) { \ + .name = (NAME), \ + .len = sizeof(NAME) - 1, \ +@@ -198,11 +206,6 @@ static int proc_root_link(struct dentry *dentry, struct path *path) + return result; + } + +-struct mm_struct *mm_for_maps(struct task_struct *task) +-{ +- return mm_access(task, PTRACE_MODE_READ); +-} +- + static int proc_pid_cmdline(struct task_struct *task, char * buffer) + { + int res = 0; +@@ -213,6 +216,9 @@ static int proc_pid_cmdline(struct task_struct *task, char * buffer) + if (!mm->arg_end) + goto out_mm; /* Shh! No looking before we're done */ + ++ if (gr_acl_handle_procpidmem(task)) ++ goto out_mm; ++ + len = mm->arg_end - mm->arg_start; + + if (len > PAGE_SIZE) +@@ -240,12 +246,28 @@ out: + return res; + } + ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \ ++ (_mm->pax_flags & MF_PAX_RANDMMAP || \ ++ _mm->pax_flags & MF_PAX_SEGMEXEC)) ++#endif ++ + static int proc_pid_auxv(struct task_struct *task, char *buffer) + { +- struct mm_struct *mm = mm_for_maps(task); ++ struct mm_struct *mm = mm_access(task, PTRACE_MODE_READ); + int res = PTR_ERR(mm); + if (mm && !IS_ERR(mm)) { + unsigned int nwords = 0; ++ ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ /* allow if we're currently ptracing this task */ ++ if (PAX_RAND_FLAGS(mm) && ++ (!(task->ptrace & PT_PTRACED) || (task->parent != current))) { ++ mmput(mm); ++ return 0; ++ } ++#endif ++ + do { + nwords += 2; + } while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */ +@@ -259,7 +281,7 @@ static int proc_pid_auxv(struct task_struct *task, char *buffer) + } + + +-#ifdef CONFIG_KALLSYMS ++#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM) + /* + * Provides a wchan file via kallsyms in a proper one-value-per-file format. + * Returns the resolved symbol. If that fails, simply return the address. +@@ -298,7 +320,7 @@ static void unlock_trace(struct task_struct *task) + mutex_unlock(&task->signal->cred_guard_mutex); + } + +-#ifdef CONFIG_STACKTRACE ++#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM) + + #define MAX_STACK_TRACE_DEPTH 64 + +@@ -489,7 +511,7 @@ static int proc_pid_limits(struct task_struct *task, char *buffer) + return count; + } + +-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK ++#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP) + static int proc_pid_syscall(struct task_struct *task, char *buffer) + { + long nr; +@@ -518,7 +540,7 @@ static int proc_pid_syscall(struct task_struct *task, char *buffer) + /************************************************************************/ + + /* permission checks */ +-static int proc_fd_access_allowed(struct inode *inode) ++static int proc_fd_access_allowed(struct inode *inode, unsigned int log) + { + struct task_struct *task; + int allowed = 0; +@@ -528,7 +550,10 @@ static int proc_fd_access_allowed(struct inode *inode) + */ + task = get_proc_task(inode); + if (task) { +- allowed = ptrace_may_access(task, PTRACE_MODE_READ); ++ if (log) ++ allowed = ptrace_may_access(task, PTRACE_MODE_READ); ++ else ++ allowed = ptrace_may_access(task, PTRACE_MODE_READ | PTRACE_MODE_NOAUDIT); + put_task_struct(task); + } + return allowed; +@@ -566,10 +591,35 @@ static bool has_pid_permissions(struct pid_namespace *pid, + struct task_struct *task, + int hide_pid_min) + { ++ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task)) ++ return false; ++ ++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ rcu_read_lock(); ++ { ++ const struct cred *tmpcred = current_cred(); ++ const struct cred *cred = __task_cred(task); ++ ++ if (!tmpcred->uid || (tmpcred->uid == cred->uid) ++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP ++ || in_group_p(CONFIG_GRKERNSEC_PROC_GID) ++#endif ++ ) { ++ rcu_read_unlock(); ++ return true; ++ } ++ } ++ rcu_read_unlock(); ++ ++ if (!pid->hide_pid) ++ return false; ++#endif ++ + if (pid->hide_pid < hide_pid_min) + return true; + if (in_group_p(pid->pid_gid)) + return true; ++ + return ptrace_may_access(task, PTRACE_MODE_READ); + } + +@@ -587,7 +637,11 @@ static int proc_pid_permission(struct inode *inode, int mask) + put_task_struct(task); + + if (!has_perms) { ++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ { ++#else + if (pid->hide_pid == 2) { ++#endif + /* + * Let's make getdents(), stat(), and open() + * consistent with each other. If a process +@@ -677,7 +731,7 @@ static const struct file_operations proc_single_file_operations = { + .release = single_release, + }; + +-static int mem_open(struct inode* inode, struct file* file) ++static int __mem_open(struct inode *inode, struct file *file, unsigned int mode) + { + struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode); + struct mm_struct *mm; +@@ -685,7 +739,12 @@ static int mem_open(struct inode* inode, struct file* file) + if (!task) + return -ESRCH; + +- mm = mm_access(task, PTRACE_MODE_ATTACH); ++ if (gr_acl_handle_procpidmem(task)) { ++ put_task_struct(task); ++ return -EPERM; ++ } ++ ++ mm = mm_access(task, mode); + put_task_struct(task); + + if (IS_ERR(mm)) +@@ -698,11 +757,24 @@ static int mem_open(struct inode* inode, struct file* file) + mmput(mm); + } + ++ file->private_data = mm; ++ ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ file->f_version = current->exec_id; ++#endif ++ ++ return 0; ++} ++ ++static int mem_open(struct inode *inode, struct file *file) ++{ ++ int ret; ++ ret = __mem_open(inode, file, PTRACE_MODE_ATTACH); ++ + /* OK to pass negative loff_t, we can catch out-of-range */ + file->f_mode |= FMODE_UNSIGNED_OFFSET; +- file->private_data = mm; + +- return 0; ++ return ret; + } + + static ssize_t mem_rw(struct file *file, char __user *buf, +@@ -713,6 +785,17 @@ static ssize_t mem_rw(struct file *file, char __user *buf, + ssize_t copied; + char *page; + ++#ifdef CONFIG_GRKERNSEC ++ if (write) ++ return -EPERM; ++#endif ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ if (file->f_version != current->exec_id) { ++ gr_log_badprocpid("mem"); ++ return 0; ++ } ++#endif ++ + if (!mm) + return 0; + +@@ -801,42 +884,49 @@ static const struct file_operations proc_mem_operations = { + .release = mem_release, + }; + ++static int environ_open(struct inode *inode, struct file *file) ++{ ++ return __mem_open(inode, file, PTRACE_MODE_READ); ++} ++ + static ssize_t environ_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) + { +- struct task_struct *task = get_proc_task(file->f_dentry->d_inode); + char *page; + unsigned long src = *ppos; +- int ret = -ESRCH; +- struct mm_struct *mm; ++ int ret = 0; ++ struct mm_struct *mm = file->private_data; + +- if (!task) +- goto out_no_task; ++ if (!mm) ++ return 0; ++ ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ if (file->f_version != current->exec_id) { ++ gr_log_badprocpid("environ"); ++ return 0; ++ } ++#endif + +- ret = -ENOMEM; + page = (char *)__get_free_page(GFP_TEMPORARY); + if (!page) +- goto out; +- +- +- mm = mm_for_maps(task); +- ret = PTR_ERR(mm); +- if (!mm || IS_ERR(mm)) +- goto out_free; ++ return -ENOMEM; + + ret = 0; ++ if (!atomic_inc_not_zero(&mm->mm_users)) ++ goto free; + while (count > 0) { +- int this_len, retval, max_len; ++ size_t this_len, max_len; ++ int retval; ++ ++ if (src >= (mm->env_end - mm->env_start)) ++ break; + + this_len = mm->env_end - (mm->env_start + src); + +- if (this_len <= 0) +- break; ++ max_len = min_t(size_t, PAGE_SIZE, count); ++ this_len = min(max_len, this_len); + +- max_len = (count > PAGE_SIZE) ? PAGE_SIZE : count; +- this_len = (this_len > max_len) ? max_len : this_len; +- +- retval = access_process_vm(task, (mm->env_start + src), ++ retval = access_remote_vm(mm, (mm->env_start + src), + page, this_len, 0); + + if (retval <= 0) { +@@ -855,19 +945,18 @@ static ssize_t environ_read(struct file *file, char __user *buf, + count -= retval; + } + *ppos = src; +- + mmput(mm); +-out_free: ++ ++free: + free_page((unsigned long) page); +-out: +- put_task_struct(task); +-out_no_task: + return ret; + } + + static const struct file_operations proc_environ_operations = { ++ .open = environ_open, + .read = environ_read, + .llseek = generic_file_llseek, ++ .release = mem_release, + }; + + static ssize_t oom_adjust_read(struct file *file, char __user *buf, +@@ -1433,7 +1522,7 @@ static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd) + path_put(&nd->path); + + /* Are we allowed to snoop on the tasks file descriptors? */ +- if (!proc_fd_access_allowed(inode)) ++ if (!proc_fd_access_allowed(inode, 0)) + goto out; + + error = PROC_I(inode)->op.proc_get_link(dentry, &nd->path); +@@ -1472,8 +1561,18 @@ static int proc_pid_readlink(struct dentry * dentry, char __user * buffer, int b + struct path path; + + /* Are we allowed to snoop on the tasks file descriptors? */ +- if (!proc_fd_access_allowed(inode)) +- goto out; ++ /* logging this is needed for learning on chromium to work properly, ++ but we don't want to flood the logs from 'ps' which does a readlink ++ on /proc/fd/2 of tasks in the listing, nor do we want 'ps' to learn ++ CAP_SYS_PTRACE as it's not necessary for its basic functionality ++ */ ++ if (dentry->d_name.name[0] == '2' && dentry->d_name.name[1] == '\0') { ++ if (!proc_fd_access_allowed(inode,0)) ++ goto out; ++ } else { ++ if (!proc_fd_access_allowed(inode,1)) ++ goto out; ++ } + + error = PROC_I(inode)->op.proc_get_link(dentry, &path); + if (error) +@@ -1538,7 +1637,11 @@ struct inode *proc_pid_make_inode(struct super_block * sb, struct task_struct *t + rcu_read_lock(); + cred = __task_cred(task); + inode->i_uid = cred->euid; ++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP ++ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID; ++#else + inode->i_gid = cred->egid; ++#endif + rcu_read_unlock(); + } + security_task_to_inode(task, inode); +@@ -1574,10 +1677,19 @@ int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) + return -ENOENT; + } + if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) || ++#ifdef CONFIG_GRKERNSEC_PROC_USER ++ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) || ++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) || ++#endif + task_dumpable(task)) { + cred = __task_cred(task); + stat->uid = cred->euid; ++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP ++ stat->gid = CONFIG_GRKERNSEC_PROC_GID; ++#else + stat->gid = cred->egid; ++#endif + } + } + rcu_read_unlock(); +@@ -1615,11 +1727,20 @@ int pid_revalidate(struct dentry *dentry, struct nameidata *nd) + + if (task) { + if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) || ++#ifdef CONFIG_GRKERNSEC_PROC_USER ++ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) || ++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) || ++#endif + task_dumpable(task)) { + rcu_read_lock(); + cred = __task_cred(task); + inode->i_uid = cred->euid; ++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP ++ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID; ++#else + inode->i_gid = cred->egid; ++#endif + rcu_read_unlock(); + } else { + inode->i_uid = 0; +@@ -1737,7 +1858,8 @@ static int proc_fd_info(struct inode *inode, struct path *path, char *info) + int fd = proc_fd(inode); + + if (task) { +- files = get_files_struct(task); ++ if (!gr_acl_handle_procpidmem(task)) ++ files = get_files_struct(task); + put_task_struct(task); + } + if (files) { +@@ -2025,11 +2147,8 @@ static int map_files_d_revalidate(struct dentry *dentry, struct nameidata *nd) + if (!task) + goto out_notask; + +- if (!ptrace_may_access(task, PTRACE_MODE_READ)) +- goto out; +- +- mm = get_task_mm(task); +- if (!mm) ++ mm = mm_access(task, PTRACE_MODE_READ); ++ if (IS_ERR_OR_NULL(mm)) + goto out; + + if (!dname_to_vma_addr(dentry, &vm_start, &vm_end)) { +@@ -2338,11 +2457,21 @@ static const struct file_operations proc_map_files_operations = { + */ + static int proc_fd_permission(struct inode *inode, int mask) + { ++ struct task_struct *task; + int rv = generic_permission(inode, mask); +- if (rv == 0) +- return 0; ++ + if (task_pid(current) == proc_pid(inode)) + rv = 0; ++ ++ task = get_proc_task(inode); ++ if (task == NULL) ++ return rv; ++ ++ if (gr_acl_handle_procpidmem(task)) ++ rv = -EACCES; ++ ++ put_task_struct(task); ++ + return rv; + } + +@@ -2452,6 +2581,9 @@ static struct dentry *proc_pident_lookup(struct inode *dir, + if (!task) + goto out_no_task; + ++ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task)) ++ goto out; ++ + /* + * Yes, it does not scale. And it should not. Don't add + * new entries into /proc/<tgid>/ without very good reasons. +@@ -2496,6 +2628,9 @@ static int proc_pident_readdir(struct file *filp, + if (!task) + goto out_no_task; + ++ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task)) ++ goto out; ++ + ret = 0; + i = filp->f_pos; + switch (i) { +@@ -2766,7 +2901,7 @@ static void *proc_self_follow_link(struct dentry *dentry, struct nameidata *nd) + static void proc_self_put_link(struct dentry *dentry, struct nameidata *nd, + void *cookie) + { +- char *s = nd_get_link(nd); ++ const char *s = nd_get_link(nd); + if (!IS_ERR(s)) + __putname(s); + } +@@ -2967,7 +3102,7 @@ static const struct pid_entry tgid_base_stuff[] = { + REG("autogroup", S_IRUGO|S_IWUSR, proc_pid_sched_autogroup_operations), + #endif + REG("comm", S_IRUGO|S_IWUSR, proc_pid_set_comm_operations), +-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK ++#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP) + INF("syscall", S_IRUGO, proc_pid_syscall), + #endif + INF("cmdline", S_IRUGO, proc_pid_cmdline), +@@ -2992,10 +3127,10 @@ static const struct pid_entry tgid_base_stuff[] = { + #ifdef CONFIG_SECURITY + DIR("attr", S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations), + #endif +-#ifdef CONFIG_KALLSYMS ++#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM) + INF("wchan", S_IRUGO, proc_pid_wchan), + #endif +-#ifdef CONFIG_STACKTRACE ++#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM) + ONE("stack", S_IRUGO, proc_pid_stack), + #endif + #ifdef CONFIG_SCHEDSTATS +@@ -3029,6 +3164,9 @@ static const struct pid_entry tgid_base_stuff[] = { + #ifdef CONFIG_HARDWALL + INF("hardwall", S_IRUGO, proc_pid_hardwall), + #endif ++#ifdef CONFIG_GRKERNSEC_PROC_IPADDR ++ INF("ipaddr", S_IRUSR, proc_pid_ipaddr), ++#endif + }; + + static int proc_tgid_base_readdir(struct file * filp, +@@ -3155,7 +3293,14 @@ static struct dentry *proc_pid_instantiate(struct inode *dir, + if (!inode) + goto out; + ++#ifdef CONFIG_GRKERNSEC_PROC_USER ++ inode->i_mode = S_IFDIR|S_IRUSR|S_IXUSR; ++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID; ++ inode->i_mode = S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP; ++#else + inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO; ++#endif + inode->i_op = &proc_tgid_base_inode_operations; + inode->i_fop = &proc_tgid_base_operations; + inode->i_flags|=S_IMMUTABLE; +@@ -3197,7 +3342,11 @@ struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct + if (!task) + goto out; + ++ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task)) ++ goto out_put_task; ++ + result = proc_pid_instantiate(dir, dentry, task, NULL); ++out_put_task: + put_task_struct(task); + out: + return result; +@@ -3260,6 +3409,8 @@ static int proc_pid_fill_cache(struct file *filp, void *dirent, filldir_t filldi + static int fake_filldir(void *buf, const char *name, int namelen, + loff_t offset, u64 ino, unsigned d_type) + { ++ struct getdents_callback * __buf = (struct getdents_callback *) buf; ++ __buf->error = -EINVAL; + return 0; + } + +@@ -3326,7 +3477,7 @@ static const struct pid_entry tid_base_stuff[] = { + REG("sched", S_IRUGO|S_IWUSR, proc_pid_sched_operations), + #endif + REG("comm", S_IRUGO|S_IWUSR, proc_pid_set_comm_operations), +-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK ++#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP) + INF("syscall", S_IRUGO, proc_pid_syscall), + #endif + INF("cmdline", S_IRUGO, proc_pid_cmdline), +@@ -3350,10 +3501,10 @@ static const struct pid_entry tid_base_stuff[] = { + #ifdef CONFIG_SECURITY + DIR("attr", S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations), + #endif +-#ifdef CONFIG_KALLSYMS ++#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM) + INF("wchan", S_IRUGO, proc_pid_wchan), + #endif +-#ifdef CONFIG_STACKTRACE ++#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM) + ONE("stack", S_IRUGO, proc_pid_stack), + #endif + #ifdef CONFIG_SCHEDSTATS +diff --git a/fs/proc/cmdline.c b/fs/proc/cmdline.c +index 82676e3..5f8518a 100644 +--- a/fs/proc/cmdline.c ++++ b/fs/proc/cmdline.c +@@ -23,7 +23,11 @@ static const struct file_operations cmdline_proc_fops = { + + static int __init proc_cmdline_init(void) + { ++#ifdef CONFIG_GRKERNSEC_PROC_ADD ++ proc_create_grsec("cmdline", 0, NULL, &cmdline_proc_fops); ++#else + proc_create("cmdline", 0, NULL, &cmdline_proc_fops); ++#endif + return 0; + } + module_init(proc_cmdline_init); +diff --git a/fs/proc/devices.c b/fs/proc/devices.c +index b143471..bb105e5 100644 +--- a/fs/proc/devices.c ++++ b/fs/proc/devices.c +@@ -64,7 +64,11 @@ static const struct file_operations proc_devinfo_operations = { + + static int __init proc_devices_init(void) + { ++#ifdef CONFIG_GRKERNSEC_PROC_ADD ++ proc_create_grsec("devices", 0, NULL, &proc_devinfo_operations); ++#else + proc_create("devices", 0, NULL, &proc_devinfo_operations); ++#endif + return 0; + } + module_init(proc_devices_init); +diff --git a/fs/proc/inode.c b/fs/proc/inode.c +index 205c922..2ee4c57 100644 +--- a/fs/proc/inode.c ++++ b/fs/proc/inode.c +@@ -21,11 +21,17 @@ + #include <linux/seq_file.h> + #include <linux/slab.h> + #include <linux/mount.h> ++#include <linux/grsecurity.h> + + #include <asm/uaccess.h> + + #include "internal.h" + ++#ifdef CONFIG_PROC_SYSCTL ++extern const struct inode_operations proc_sys_inode_operations; ++extern const struct inode_operations proc_sys_dir_operations; ++#endif ++ + static void proc_evict_inode(struct inode *inode) + { + struct proc_dir_entry *de; +@@ -51,6 +57,13 @@ static void proc_evict_inode(struct inode *inode) + ns_ops = PROC_I(inode)->ns_ops; + if (ns_ops && ns_ops->put) + ns_ops->put(PROC_I(inode)->ns); ++ ++#ifdef CONFIG_PROC_SYSCTL ++ if (inode->i_op == &proc_sys_inode_operations || ++ inode->i_op == &proc_sys_dir_operations) ++ gr_handle_delete(inode->i_ino, inode->i_sb->s_dev); ++#endif ++ + } + + static struct kmem_cache * proc_inode_cachep; +@@ -456,7 +469,11 @@ struct inode *proc_get_inode(struct super_block *sb, struct proc_dir_entry *de) + if (de->mode) { + inode->i_mode = de->mode; + inode->i_uid = de->uid; ++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP ++ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID; ++#else + inode->i_gid = de->gid; ++#endif + } + if (de->size) + inode->i_size = de->size; +diff --git a/fs/proc/internal.h b/fs/proc/internal.h +index 5f79bb8..e9ab85d 100644 +--- a/fs/proc/internal.h ++++ b/fs/proc/internal.h +@@ -31,8 +31,6 @@ struct vmalloc_info { + unsigned long largest_chunk; + }; + +-extern struct mm_struct *mm_for_maps(struct task_struct *); +- + #ifdef CONFIG_MMU + #define VMALLOC_TOTAL (VMALLOC_END - VMALLOC_START) + extern void get_vmalloc_info(struct vmalloc_info *vmi); +@@ -54,6 +52,9 @@ extern int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, + struct pid *pid, struct task_struct *task); + extern int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns, + struct pid *pid, struct task_struct *task); ++#ifdef CONFIG_GRKERNSEC_PROC_IPADDR ++extern int proc_pid_ipaddr(struct task_struct *task, char *buffer); ++#endif + extern loff_t mem_lseek(struct file *file, loff_t offset, int orig); + + extern const struct file_operations proc_pid_maps_operations; +diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c +index 86c67ee..cdca321 100644 +--- a/fs/proc/kcore.c ++++ b/fs/proc/kcore.c +@@ -480,9 +480,10 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos) + * the addresses in the elf_phdr on our list. + */ + start = kc_offset_to_vaddr(*fpos - elf_buflen); +- if ((tsz = (PAGE_SIZE - (start & ~PAGE_MASK))) > buflen) ++ tsz = PAGE_SIZE - (start & ~PAGE_MASK); ++ if (tsz > buflen) + tsz = buflen; +- ++ + while (buflen) { + struct kcore_list *m; + +@@ -511,20 +512,23 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos) + kfree(elf_buf); + } else { + if (kern_addr_valid(start)) { +- unsigned long n; ++ char *elf_buf; ++ mm_segment_t oldfs; + +- n = copy_to_user(buffer, (char *)start, tsz); +- /* +- * We cannot distinguish between fault on source +- * and fault on destination. When this happens +- * we clear too and hope it will trigger the +- * EFAULT again. +- */ +- if (n) { +- if (clear_user(buffer + tsz - n, +- n)) ++ elf_buf = kmalloc(tsz, GFP_KERNEL); ++ if (!elf_buf) ++ return -ENOMEM; ++ oldfs = get_fs(); ++ set_fs(KERNEL_DS); ++ if (!__copy_from_user(elf_buf, (const void __user *)start, tsz)) { ++ set_fs(oldfs); ++ if (copy_to_user(buffer, elf_buf, tsz)) { ++ kfree(elf_buf); + return -EFAULT; ++ } + } ++ set_fs(oldfs); ++ kfree(elf_buf); + } else { + if (clear_user(buffer, tsz)) + return -EFAULT; +@@ -544,6 +548,9 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos) + + static int open_kcore(struct inode *inode, struct file *filp) + { ++#if defined(CONFIG_GRKERNSEC_PROC_ADD) || defined(CONFIG_GRKERNSEC_HIDESYM) ++ return -EPERM; ++#endif + if (!capable(CAP_SYS_RAWIO)) + return -EPERM; + if (kcore_need_update) +diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c +index 80e4645..53e5fcf 100644 +--- a/fs/proc/meminfo.c ++++ b/fs/proc/meminfo.c +@@ -158,7 +158,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v) + vmi.used >> 10, + vmi.largest_chunk >> 10 + #ifdef CONFIG_MEMORY_FAILURE +- ,atomic_long_read(&mce_bad_pages) << (PAGE_SHIFT - 10) ++ ,atomic_long_read_unchecked(&mce_bad_pages) << (PAGE_SHIFT - 10) + #endif + #ifdef CONFIG_TRANSPARENT_HUGEPAGE + ,K(global_page_state(NR_ANON_TRANSPARENT_HUGEPAGES) * +diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c +index b1822dd..df622cb 100644 +--- a/fs/proc/nommu.c ++++ b/fs/proc/nommu.c +@@ -66,7 +66,7 @@ static int nommu_region_show(struct seq_file *m, struct vm_region *region) + if (len < 1) + len = 1; + seq_printf(m, "%*c", len, ' '); +- seq_path(m, &file->f_path, ""); ++ seq_path(m, &file->f_path, "\n\\"); + } + + seq_putc(m, '\n'); +diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c +index 06e1cc1..177cd98 100644 +--- a/fs/proc/proc_net.c ++++ b/fs/proc/proc_net.c +@@ -105,6 +105,17 @@ static struct net *get_proc_task_net(struct inode *dir) + struct task_struct *task; + struct nsproxy *ns; + struct net *net = NULL; ++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ const struct cred *cred = current_cred(); ++#endif ++ ++#ifdef CONFIG_GRKERNSEC_PROC_USER ++ if (cred->fsuid) ++ return net; ++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ if (cred->fsuid && !in_group_p(CONFIG_GRKERNSEC_PROC_GID)) ++ return net; ++#endif + + rcu_read_lock(); + task = pid_task(proc_pid(dir), PIDTYPE_PID); +diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c +index 21d836f..bebf3ee 100644 +--- a/fs/proc/proc_sysctl.c ++++ b/fs/proc/proc_sysctl.c +@@ -12,11 +12,15 @@ + #include <linux/module.h> + #include "internal.h" + ++extern int gr_handle_chroot_sysctl(const int op); ++extern int gr_handle_sysctl_mod(const char *dirname, const char *name, ++ const int op); ++ + static const struct dentry_operations proc_sys_dentry_operations; + static const struct file_operations proc_sys_file_operations; +-static const struct inode_operations proc_sys_inode_operations; ++const struct inode_operations proc_sys_inode_operations; + static const struct file_operations proc_sys_dir_file_operations; +-static const struct inode_operations proc_sys_dir_operations; ++const struct inode_operations proc_sys_dir_operations; + + void proc_sys_poll_notify(struct ctl_table_poll *poll) + { +@@ -470,8 +474,14 @@ static struct dentry *proc_sys_lookup(struct inode *dir, struct dentry *dentry, + + err = NULL; + d_set_d_op(dentry, &proc_sys_dentry_operations); ++ ++ gr_handle_proc_create(dentry, inode); ++ + d_add(dentry, inode); + ++ if (!gr_acl_handle_hidden_file(dentry, nd->path.mnt)) ++ err = ERR_PTR(-ENOENT); ++ + out: + sysctl_head_finish(head); + return err; +@@ -483,18 +493,20 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf, + struct inode *inode = filp->f_path.dentry->d_inode; + struct ctl_table_header *head = grab_header(inode); + struct ctl_table *table = PROC_I(inode)->sysctl_entry; ++ int op = write ? MAY_WRITE : MAY_READ; + ssize_t error; + size_t res; + + if (IS_ERR(head)) + return PTR_ERR(head); + ++ + /* + * At this point we know that the sysctl was not unregistered + * and won't be until we finish. + */ + error = -EPERM; +- if (sysctl_perm(head->root, table, write ? MAY_WRITE : MAY_READ)) ++ if (sysctl_perm(head->root, table, op)) + goto out; + + /* if that can happen at all, it should be -EINVAL, not -EISDIR */ +@@ -502,6 +514,22 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf, + if (!table->proc_handler) + goto out; + ++#ifdef CONFIG_GRKERNSEC ++ error = -EPERM; ++ if (gr_handle_chroot_sysctl(op)) ++ goto out; ++ dget(filp->f_path.dentry); ++ if (gr_handle_sysctl_mod(filp->f_path.dentry->d_parent->d_name.name, table->procname, op)) { ++ dput(filp->f_path.dentry); ++ goto out; ++ } ++ dput(filp->f_path.dentry); ++ if (!gr_acl_handle_open(filp->f_path.dentry, filp->f_path.mnt, op)) ++ goto out; ++ if (write && !capable(CAP_SYS_ADMIN)) ++ goto out; ++#endif ++ + /* careful: calling conventions are nasty here */ + res = count; + error = table->proc_handler(table, write, buf, &res, ppos); +@@ -599,6 +627,9 @@ static int proc_sys_fill_cache(struct file *filp, void *dirent, + return -ENOMEM; + } else { + d_set_d_op(child, &proc_sys_dentry_operations); ++ ++ gr_handle_proc_create(child, inode); ++ + d_add(child, inode); + } + } else { +@@ -642,6 +673,9 @@ static int scan(struct ctl_table_header *head, ctl_table *table, + if ((*pos)++ < file->f_pos) + return 0; + ++ if (!gr_acl_handle_hidden_file(file->f_path.dentry, file->f_path.mnt)) ++ return 0; ++ + if (unlikely(S_ISLNK(table->mode))) + res = proc_sys_link_fill_cache(file, dirent, filldir, head, table); + else +@@ -759,6 +793,9 @@ static int proc_sys_getattr(struct vfsmount *mnt, struct dentry *dentry, struct + if (IS_ERR(head)) + return PTR_ERR(head); + ++ if (table && !gr_acl_handle_hidden_file(dentry, mnt)) ++ return -ENOENT; ++ + generic_fillattr(inode, stat); + if (table) + stat->mode = (stat->mode & S_IFMT) | table->mode; +@@ -781,13 +818,13 @@ static const struct file_operations proc_sys_dir_file_operations = { + .llseek = generic_file_llseek, + }; + +-static const struct inode_operations proc_sys_inode_operations = { ++const struct inode_operations proc_sys_inode_operations = { + .permission = proc_sys_permission, + .setattr = proc_sys_setattr, + .getattr = proc_sys_getattr, + }; + +-static const struct inode_operations proc_sys_dir_operations = { ++const struct inode_operations proc_sys_dir_operations = { + .lookup = proc_sys_lookup, + .permission = proc_sys_permission, + .setattr = proc_sys_setattr, +diff --git a/fs/proc/root.c b/fs/proc/root.c +index eed44bf..abeb499 100644 +--- a/fs/proc/root.c ++++ b/fs/proc/root.c +@@ -188,7 +188,15 @@ void __init proc_root_init(void) + #ifdef CONFIG_PROC_DEVICETREE + proc_device_tree_init(); + #endif ++#ifdef CONFIG_GRKERNSEC_PROC_ADD ++#ifdef CONFIG_GRKERNSEC_PROC_USER ++ proc_mkdir_mode("bus", S_IRUSR | S_IXUSR, NULL); ++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ proc_mkdir_mode("bus", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL); ++#endif ++#else + proc_mkdir("bus", NULL); ++#endif + proc_sys_init(); + } + +diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c +index 7faaf2a..7793015 100644 +--- a/fs/proc/task_mmu.c ++++ b/fs/proc/task_mmu.c +@@ -11,12 +11,19 @@ + #include <linux/rmap.h> + #include <linux/swap.h> + #include <linux/swapops.h> ++#include <linux/grsecurity.h> + + #include <asm/elf.h> + #include <asm/uaccess.h> + #include <asm/tlbflush.h> + #include "internal.h" + ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \ ++ (_mm->pax_flags & MF_PAX_RANDMMAP || \ ++ _mm->pax_flags & MF_PAX_SEGMEXEC)) ++#endif ++ + void task_mem(struct seq_file *m, struct mm_struct *mm) + { + unsigned long data, text, lib, swap; +@@ -52,8 +59,13 @@ void task_mem(struct seq_file *m, struct mm_struct *mm) + "VmExe:\t%8lu kB\n" + "VmLib:\t%8lu kB\n" + "VmPTE:\t%8lu kB\n" +- "VmSwap:\t%8lu kB\n", +- hiwater_vm << (PAGE_SHIFT-10), ++ "VmSwap:\t%8lu kB\n" ++ ++#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT ++ "CsBase:\t%8lx\nCsLim:\t%8lx\n" ++#endif ++ ++ ,hiwater_vm << (PAGE_SHIFT-10), + (total_vm - mm->reserved_vm) << (PAGE_SHIFT-10), + mm->locked_vm << (PAGE_SHIFT-10), + mm->pinned_vm << (PAGE_SHIFT-10), +@@ -62,7 +74,19 @@ void task_mem(struct seq_file *m, struct mm_struct *mm) + data << (PAGE_SHIFT-10), + mm->stack_vm << (PAGE_SHIFT-10), text, lib, + (PTRS_PER_PTE*sizeof(pte_t)*mm->nr_ptes) >> 10, +- swap << (PAGE_SHIFT-10)); ++ swap << (PAGE_SHIFT-10) ++ ++#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ , PAX_RAND_FLAGS(mm) ? 0 : mm->context.user_cs_base ++ , PAX_RAND_FLAGS(mm) ? 0 : mm->context.user_cs_limit ++#else ++ , mm->context.user_cs_base ++ , mm->context.user_cs_limit ++#endif ++#endif ++ ++ ); + } + + unsigned long task_vsize(struct mm_struct *mm) +@@ -125,7 +149,7 @@ static void *m_start(struct seq_file *m, loff_t *pos) + if (!priv->task) + return ERR_PTR(-ESRCH); + +- mm = mm_for_maps(priv->task); ++ mm = mm_access(priv->task, PTRACE_MODE_READ); + if (!mm || IS_ERR(mm)) + return mm; + down_read(&mm->mmap_sem); +@@ -231,13 +255,13 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid) + pgoff = ((loff_t)vma->vm_pgoff) << PAGE_SHIFT; + } + +- /* We don't show the stack guard page in /proc/maps */ ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ start = PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_start; ++ end = PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_end; ++#else + start = vma->vm_start; +- if (stack_guard_page_start(vma, start)) +- start += PAGE_SIZE; + end = vma->vm_end; +- if (stack_guard_page_end(vma, end)) +- end -= PAGE_SIZE; ++#endif + + seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n", + start, +@@ -246,7 +270,11 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid) + flags & VM_WRITE ? 'w' : '-', + flags & VM_EXEC ? 'x' : '-', + flags & VM_MAYSHARE ? 's' : 'p', ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ PAX_RAND_FLAGS(mm) ? 0UL : pgoff, ++#else + pgoff, ++#endif + MAJOR(dev), MINOR(dev), ino, &len); + + /* +@@ -255,7 +283,7 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid) + */ + if (file) { + pad_len_spaces(m, len); +- seq_path(m, &file->f_path, "\n"); ++ seq_path(m, &file->f_path, "\n\\"); + goto done; + } + +@@ -281,8 +309,9 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid) + * Thread stack in /proc/PID/task/TID/maps or + * the main process stack. + */ +- if (!is_pid || (vma->vm_start <= mm->start_stack && +- vma->vm_end >= mm->start_stack)) { ++ if (!is_pid || (vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP)) || ++ (vma->vm_start <= mm->start_stack && ++ vma->vm_end >= mm->start_stack)) { + name = "[stack]"; + } else { + /* Thread stack in /proc/PID/maps */ +@@ -306,6 +335,13 @@ static int show_map(struct seq_file *m, void *v, int is_pid) + struct proc_maps_private *priv = m->private; + struct task_struct *task = priv->task; + ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ if (current->exec_id != m->exec_id) { ++ gr_log_badprocpid("maps"); ++ return 0; ++ } ++#endif ++ + show_map_vma(m, vma, is_pid); + + if (m->count < m->size) /* vma is copied successfully */ +@@ -482,12 +518,23 @@ static int show_smap(struct seq_file *m, void *v, int is_pid) + .private = &mss, + }; + ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ if (current->exec_id != m->exec_id) { ++ gr_log_badprocpid("smaps"); ++ return 0; ++ } ++#endif + memset(&mss, 0, sizeof mss); +- mss.vma = vma; +- /* mmap_sem is held in m_start */ +- if (vma->vm_mm && !is_vm_hugetlb_page(vma)) +- walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk); +- ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ if (!PAX_RAND_FLAGS(vma->vm_mm)) { ++#endif ++ mss.vma = vma; ++ /* mmap_sem is held in m_start */ ++ if (vma->vm_mm && !is_vm_hugetlb_page(vma)) ++ walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk); ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ } ++#endif + show_map_vma(m, vma, is_pid); + + seq_printf(m, +@@ -505,7 +552,11 @@ static int show_smap(struct seq_file *m, void *v, int is_pid) + "KernelPageSize: %8lu kB\n" + "MMUPageSize: %8lu kB\n" + "Locked: %8lu kB\n", ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : (vma->vm_end - vma->vm_start) >> 10, ++#else + (vma->vm_end - vma->vm_start) >> 10, ++#endif + mss.resident >> 10, + (unsigned long)(mss.pss >> (10 + PSS_SHIFT)), + mss.shared_clean >> 10, +@@ -919,7 +970,7 @@ static ssize_t pagemap_read(struct file *file, char __user *buf, + if (!pm.buffer) + goto out_task; + +- mm = mm_for_maps(task); ++ mm = mm_access(task, PTRACE_MODE_READ); + ret = PTR_ERR(mm); + if (!mm || IS_ERR(mm)) + goto out_free; +@@ -1138,6 +1189,13 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid) + int n; + char buffer[50]; + ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ if (current->exec_id != m->exec_id) { ++ gr_log_badprocpid("numa_maps"); ++ return 0; ++ } ++#endif ++ + if (!mm) + return 0; + +@@ -1155,11 +1213,15 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid) + mpol_to_str(buffer, sizeof(buffer), pol, 0); + mpol_cond_put(pol); + ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ seq_printf(m, "%08lx %s", PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : vma->vm_start, buffer); ++#else + seq_printf(m, "%08lx %s", vma->vm_start, buffer); ++#endif + + if (file) { + seq_printf(m, " file="); +- seq_path(m, &file->f_path, "\n\t= "); ++ seq_path(m, &file->f_path, "\n\t\\= "); + } else if (vma->vm_start <= mm->brk && vma->vm_end >= mm->start_brk) { + seq_printf(m, " heap"); + } else { +diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c +index 74fe164..0848f95 100644 +--- a/fs/proc/task_nommu.c ++++ b/fs/proc/task_nommu.c +@@ -51,7 +51,7 @@ void task_mem(struct seq_file *m, struct mm_struct *mm) + else + bytes += kobjsize(mm); + +- if (current->fs && current->fs->users > 1) ++ if (current->fs && atomic_read(&current->fs->users) > 1) + sbytes += kobjsize(current->fs); + else + bytes += kobjsize(current->fs); +@@ -168,7 +168,7 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma, + + if (file) { + pad_len_spaces(m, len); +- seq_path(m, &file->f_path, ""); ++ seq_path(m, &file->f_path, "\n\\"); + } else if (mm) { + pid_t tid = vm_is_stack(priv->task, vma, is_pid); + +@@ -223,7 +223,7 @@ static void *m_start(struct seq_file *m, loff_t *pos) + if (!priv->task) + return ERR_PTR(-ESRCH); + +- mm = mm_for_maps(priv->task); ++ mm = mm_access(priv->task, PTRACE_MODE_READ); + if (!mm || IS_ERR(mm)) { + put_task_struct(priv->task); + priv->task = NULL; +diff --git a/fs/quota/netlink.c b/fs/quota/netlink.c +index d67908b..d13f6a6 100644 +--- a/fs/quota/netlink.c ++++ b/fs/quota/netlink.c +@@ -33,7 +33,7 @@ static struct genl_family quota_genl_family = { + void quota_send_warning(short type, unsigned int id, dev_t dev, + const char warntype) + { +- static atomic_t seq; ++ static atomic_unchecked_t seq; + struct sk_buff *skb; + void *msg_head; + int ret; +@@ -49,7 +49,7 @@ void quota_send_warning(short type, unsigned int id, dev_t dev, + "VFS: Not enough memory to send quota warning.\n"); + return; + } +- msg_head = genlmsg_put(skb, 0, atomic_add_return(1, &seq), ++ msg_head = genlmsg_put(skb, 0, atomic_add_return_unchecked(1, &seq), + &quota_genl_family, 0, QUOTA_NL_C_WARNING); + if (!msg_head) { + printk(KERN_ERR +diff --git a/fs/readdir.c b/fs/readdir.c +index cc0a822..43cb195 100644 +--- a/fs/readdir.c ++++ b/fs/readdir.c +@@ -17,6 +17,7 @@ + #include <linux/security.h> + #include <linux/syscalls.h> + #include <linux/unistd.h> ++#include <linux/namei.h> + + #include <asm/uaccess.h> + +@@ -67,6 +68,7 @@ struct old_linux_dirent { + + struct readdir_callback { + struct old_linux_dirent __user * dirent; ++ struct file * file; + int result; + }; + +@@ -84,6 +86,10 @@ static int fillonedir(void * __buf, const char * name, int namlen, loff_t offset + buf->result = -EOVERFLOW; + return -EOVERFLOW; + } ++ ++ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino)) ++ return 0; ++ + buf->result++; + dirent = buf->dirent; + if (!access_ok(VERIFY_WRITE, dirent, +@@ -116,6 +122,7 @@ SYSCALL_DEFINE3(old_readdir, unsigned int, fd, + + buf.result = 0; + buf.dirent = dirent; ++ buf.file = file; + + error = vfs_readdir(file, fillonedir, &buf); + if (buf.result) +@@ -142,6 +149,7 @@ struct linux_dirent { + struct getdents_callback { + struct linux_dirent __user * current_dir; + struct linux_dirent __user * previous; ++ struct file * file; + int count; + int error; + }; +@@ -163,6 +171,10 @@ static int filldir(void * __buf, const char * name, int namlen, loff_t offset, + buf->error = -EOVERFLOW; + return -EOVERFLOW; + } ++ ++ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino)) ++ return 0; ++ + dirent = buf->previous; + if (dirent) { + if (__put_user(offset, &dirent->d_off)) +@@ -210,6 +222,7 @@ SYSCALL_DEFINE3(getdents, unsigned int, fd, + buf.previous = NULL; + buf.count = count; + buf.error = 0; ++ buf.file = file; + + error = vfs_readdir(file, filldir, &buf); + if (error >= 0) +@@ -229,6 +242,7 @@ out: + struct getdents_callback64 { + struct linux_dirent64 __user * current_dir; + struct linux_dirent64 __user * previous; ++ struct file *file; + int count; + int error; + }; +@@ -244,6 +258,10 @@ static int filldir64(void * __buf, const char * name, int namlen, loff_t offset, + buf->error = -EINVAL; /* only used if we fail.. */ + if (reclen > buf->count) + return -EINVAL; ++ ++ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino)) ++ return 0; ++ + dirent = buf->previous; + if (dirent) { + if (__put_user(offset, &dirent->d_off)) +@@ -291,6 +309,7 @@ SYSCALL_DEFINE3(getdents64, unsigned int, fd, + + buf.current_dir = dirent; + buf.previous = NULL; ++ buf.file = file; + buf.count = count; + buf.error = 0; + +@@ -299,7 +318,7 @@ SYSCALL_DEFINE3(getdents64, unsigned int, fd, + error = buf.error; + lastdirent = buf.previous; + if (lastdirent) { +- typeof(lastdirent->d_off) d_off = file->f_pos; ++ typeof(((struct linux_dirent64 *)0)->d_off) d_off = file->f_pos; + if (__put_user(d_off, &lastdirent->d_off)) + error = -EFAULT; + else +diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c +index 2b7882b..1c5ef48 100644 +--- a/fs/reiserfs/do_balan.c ++++ b/fs/reiserfs/do_balan.c +@@ -2051,7 +2051,7 @@ void do_balance(struct tree_balance *tb, /* tree_balance structure */ + return; + } + +- atomic_inc(&(fs_generation(tb->tb_sb))); ++ atomic_inc_unchecked(&(fs_generation(tb->tb_sb))); + do_balance_starts(tb); + + /* balance leaf returns 0 except if combining L R and S into +diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c +index 2c1ade6..8c59d8d 100644 +--- a/fs/reiserfs/procfs.c ++++ b/fs/reiserfs/procfs.c +@@ -112,7 +112,7 @@ static int show_super(struct seq_file *m, struct super_block *sb) + "SMALL_TAILS " : "NO_TAILS ", + replay_only(sb) ? "REPLAY_ONLY " : "", + convert_reiserfs(sb) ? "CONV " : "", +- atomic_read(&r->s_generation_counter), ++ atomic_read_unchecked(&r->s_generation_counter), + SF(s_disk_reads), SF(s_disk_writes), SF(s_fix_nodes), + SF(s_do_balance), SF(s_unneeded_left_neighbor), + SF(s_good_search_by_key_reada), SF(s_bmaps), +diff --git a/fs/reiserfs/reiserfs.h b/fs/reiserfs/reiserfs.h +index a59d271..e12d1cf 100644 +--- a/fs/reiserfs/reiserfs.h ++++ b/fs/reiserfs/reiserfs.h +@@ -453,7 +453,7 @@ struct reiserfs_sb_info { + /* Comment? -Hans */ + wait_queue_head_t s_wait; + /* To be obsoleted soon by per buffer seals.. -Hans */ +- atomic_t s_generation_counter; // increased by one every time the ++ atomic_unchecked_t s_generation_counter; // increased by one every time the + // tree gets re-balanced + unsigned long s_properties; /* File system properties. Currently holds + on-disk FS format */ +@@ -1973,7 +1973,7 @@ static inline loff_t max_reiserfs_offset(struct inode *inode) + #define REISERFS_USER_MEM 1 /* reiserfs user memory mode */ + + #define fs_generation(s) (REISERFS_SB(s)->s_generation_counter) +-#define get_generation(s) atomic_read (&fs_generation(s)) ++#define get_generation(s) atomic_read_unchecked (&fs_generation(s)) + #define FILESYSTEM_CHANGED_TB(tb) (get_generation((tb)->tb_sb) != (tb)->fs_gen) + #define __fs_changed(gen,s) (gen != get_generation (s)) + #define fs_changed(gen,s) \ +diff --git a/fs/select.c b/fs/select.c +index 17d33d0..da0bf5c 100644 +--- a/fs/select.c ++++ b/fs/select.c +@@ -20,6 +20,7 @@ + #include <linux/export.h> + #include <linux/slab.h> + #include <linux/poll.h> ++#include <linux/security.h> + #include <linux/personality.h> /* for STICKY_TIMEOUTS */ + #include <linux/file.h> + #include <linux/fdtable.h> +@@ -833,6 +834,7 @@ int do_sys_poll(struct pollfd __user *ufds, unsigned int nfds, + struct poll_list *walk = head; + unsigned long todo = nfds; + ++ gr_learn_resource(current, RLIMIT_NOFILE, nfds, 1); + if (nfds > rlimit(RLIMIT_NOFILE)) + return -EINVAL; + +diff --git a/fs/seq_file.c b/fs/seq_file.c +index 0cbd049..64e705c 100644 +--- a/fs/seq_file.c ++++ b/fs/seq_file.c +@@ -9,6 +9,7 @@ + #include <linux/export.h> + #include <linux/seq_file.h> + #include <linux/slab.h> ++#include <linux/sched.h> + + #include <asm/uaccess.h> + #include <asm/page.h> +@@ -56,6 +57,9 @@ int seq_open(struct file *file, const struct seq_operations *op) + memset(p, 0, sizeof(*p)); + mutex_init(&p->lock); + p->op = op; ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ p->exec_id = current->exec_id; ++#endif + + /* + * Wrappers around seq_open(e.g. swaps_open) need to be +@@ -92,7 +96,7 @@ static int traverse(struct seq_file *m, loff_t offset) + return 0; + } + if (!m->buf) { +- m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL); ++ m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL | GFP_USERCOPY); + if (!m->buf) + return -ENOMEM; + } +@@ -132,7 +136,7 @@ static int traverse(struct seq_file *m, loff_t offset) + Eoverflow: + m->op->stop(m, p); + kfree(m->buf); +- m->buf = kmalloc(m->size <<= 1, GFP_KERNEL); ++ m->buf = kmalloc(m->size <<= 1, GFP_KERNEL | GFP_USERCOPY); + return !m->buf ? -ENOMEM : -EAGAIN; + } + +@@ -187,7 +191,7 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos) + + /* grab buffer if we didn't have one */ + if (!m->buf) { +- m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL); ++ m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL | GFP_USERCOPY); + if (!m->buf) + goto Enomem; + } +@@ -228,7 +232,7 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos) + goto Fill; + m->op->stop(m, p); + kfree(m->buf); +- m->buf = kmalloc(m->size <<= 1, GFP_KERNEL); ++ m->buf = kmalloc(m->size <<= 1, GFP_KERNEL | GFP_USERCOPY); + if (!m->buf) + goto Enomem; + m->count = 0; +@@ -567,7 +571,7 @@ static void single_stop(struct seq_file *p, void *v) + int single_open(struct file *file, int (*show)(struct seq_file *, void *), + void *data) + { +- struct seq_operations *op = kmalloc(sizeof(*op), GFP_KERNEL); ++ seq_operations_no_const *op = kmalloc(sizeof(*op), GFP_KERNEL); + int res = -ENOMEM; + + if (op) { +diff --git a/fs/splice.c b/fs/splice.c +index 5cac690..f833a99 100644 +--- a/fs/splice.c ++++ b/fs/splice.c +@@ -194,7 +194,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe, + pipe_lock(pipe); + + for (;;) { +- if (!pipe->readers) { ++ if (!atomic_read(&pipe->readers)) { + send_sig(SIGPIPE, current, 0); + if (!ret) + ret = -EPIPE; +@@ -248,9 +248,9 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe, + do_wakeup = 0; + } + +- pipe->waiting_writers++; ++ atomic_inc(&pipe->waiting_writers); + pipe_wait(pipe); +- pipe->waiting_writers--; ++ atomic_dec(&pipe->waiting_writers); + } + + pipe_unlock(pipe); +@@ -563,7 +563,7 @@ static ssize_t kernel_readv(struct file *file, const struct iovec *vec, + old_fs = get_fs(); + set_fs(get_ds()); + /* The cast to a user pointer is valid due to the set_fs() */ +- res = vfs_readv(file, (const struct iovec __user *)vec, vlen, &pos); ++ res = vfs_readv(file, (const struct iovec __force_user *)vec, vlen, &pos); + set_fs(old_fs); + + return res; +@@ -578,7 +578,7 @@ static ssize_t kernel_write(struct file *file, const char *buf, size_t count, + old_fs = get_fs(); + set_fs(get_ds()); + /* The cast to a user pointer is valid due to the set_fs() */ +- res = vfs_write(file, (const char __user *)buf, count, &pos); ++ res = vfs_write(file, (const char __force_user *)buf, count, &pos); + set_fs(old_fs); + + return res; +@@ -630,7 +630,7 @@ ssize_t default_file_splice_read(struct file *in, loff_t *ppos, + goto err; + + this_len = min_t(size_t, len, PAGE_CACHE_SIZE - offset); +- vec[i].iov_base = (void __user *) page_address(page); ++ vec[i].iov_base = (void __force_user *) page_address(page); + vec[i].iov_len = this_len; + spd.pages[i] = page; + spd.nr_pages++; +@@ -849,10 +849,10 @@ EXPORT_SYMBOL(splice_from_pipe_feed); + int splice_from_pipe_next(struct pipe_inode_info *pipe, struct splice_desc *sd) + { + while (!pipe->nrbufs) { +- if (!pipe->writers) ++ if (!atomic_read(&pipe->writers)) + return 0; + +- if (!pipe->waiting_writers && sd->num_spliced) ++ if (!atomic_read(&pipe->waiting_writers) && sd->num_spliced) + return 0; + + if (sd->flags & SPLICE_F_NONBLOCK) +@@ -1185,7 +1185,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd, + * out of the pipe right after the splice_to_pipe(). So set + * PIPE_READERS appropriately. + */ +- pipe->readers = 1; ++ atomic_set(&pipe->readers, 1); + + current->splice_pipe = pipe; + } +@@ -1738,9 +1738,9 @@ static int ipipe_prep(struct pipe_inode_info *pipe, unsigned int flags) + ret = -ERESTARTSYS; + break; + } +- if (!pipe->writers) ++ if (!atomic_read(&pipe->writers)) + break; +- if (!pipe->waiting_writers) { ++ if (!atomic_read(&pipe->waiting_writers)) { + if (flags & SPLICE_F_NONBLOCK) { + ret = -EAGAIN; + break; +@@ -1772,7 +1772,7 @@ static int opipe_prep(struct pipe_inode_info *pipe, unsigned int flags) + pipe_lock(pipe); + + while (pipe->nrbufs >= pipe->buffers) { +- if (!pipe->readers) { ++ if (!atomic_read(&pipe->readers)) { + send_sig(SIGPIPE, current, 0); + ret = -EPIPE; + break; +@@ -1785,9 +1785,9 @@ static int opipe_prep(struct pipe_inode_info *pipe, unsigned int flags) + ret = -ERESTARTSYS; + break; + } +- pipe->waiting_writers++; ++ atomic_inc(&pipe->waiting_writers); + pipe_wait(pipe); +- pipe->waiting_writers--; ++ atomic_dec(&pipe->waiting_writers); + } + + pipe_unlock(pipe); +@@ -1823,14 +1823,14 @@ retry: + pipe_double_lock(ipipe, opipe); + + do { +- if (!opipe->readers) { ++ if (!atomic_read(&opipe->readers)) { + send_sig(SIGPIPE, current, 0); + if (!ret) + ret = -EPIPE; + break; + } + +- if (!ipipe->nrbufs && !ipipe->writers) ++ if (!ipipe->nrbufs && !atomic_read(&ipipe->writers)) + break; + + /* +@@ -1927,7 +1927,7 @@ static int link_pipe(struct pipe_inode_info *ipipe, + pipe_double_lock(ipipe, opipe); + + do { +- if (!opipe->readers) { ++ if (!atomic_read(&opipe->readers)) { + send_sig(SIGPIPE, current, 0); + if (!ret) + ret = -EPIPE; +@@ -1972,7 +1972,7 @@ static int link_pipe(struct pipe_inode_info *ipipe, + * return EAGAIN if we have the potential of some data in the + * future, otherwise just return 0 + */ +- if (!ret && ipipe->waiting_writers && (flags & SPLICE_F_NONBLOCK)) ++ if (!ret && atomic_read(&ipipe->waiting_writers) && (flags & SPLICE_F_NONBLOCK)) + ret = -EAGAIN; + + pipe_unlock(ipipe); +diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c +index 35a36d3..23424b2 100644 +--- a/fs/sysfs/dir.c ++++ b/fs/sysfs/dir.c +@@ -657,6 +657,18 @@ static int create_dir(struct kobject *kobj, struct sysfs_dirent *parent_sd, + struct sysfs_dirent *sd; + int rc; + ++#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT ++ const char *parent_name = parent_sd->s_name; ++ ++ mode = S_IFDIR | S_IRWXU; ++ ++ if ((!strcmp(parent_name, "") && (!strcmp(name, "devices") || !strcmp(name, "fs"))) || ++ (!strcmp(parent_name, "devices") && !strcmp(name, "system")) || ++ (!strcmp(parent_name, "fs") && (!strcmp(name, "selinux") || !strcmp(name, "fuse"))) || ++ (!strcmp(parent_name, "system") && !strcmp(name, "cpu"))) ++ mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO; ++#endif ++ + /* allocate */ + sd = sysfs_new_dirent(name, mode, SYSFS_DIR); + if (!sd) +diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c +index 00012e3..8392349 100644 +--- a/fs/sysfs/file.c ++++ b/fs/sysfs/file.c +@@ -37,7 +37,7 @@ static DEFINE_SPINLOCK(sysfs_open_dirent_lock); + + struct sysfs_open_dirent { + atomic_t refcnt; +- atomic_t event; ++ atomic_unchecked_t event; + wait_queue_head_t poll; + struct list_head buffers; /* goes through sysfs_buffer.list */ + }; +@@ -81,7 +81,7 @@ static int fill_read_buffer(struct dentry * dentry, struct sysfs_buffer * buffer + if (!sysfs_get_active(attr_sd)) + return -ENODEV; + +- buffer->event = atomic_read(&attr_sd->s_attr.open->event); ++ buffer->event = atomic_read_unchecked(&attr_sd->s_attr.open->event); + count = ops->show(kobj, attr_sd->s_attr.attr, buffer->page); + + sysfs_put_active(attr_sd); +@@ -287,7 +287,7 @@ static int sysfs_get_open_dirent(struct sysfs_dirent *sd, + return -ENOMEM; + + atomic_set(&new_od->refcnt, 0); +- atomic_set(&new_od->event, 1); ++ atomic_set_unchecked(&new_od->event, 1); + init_waitqueue_head(&new_od->poll); + INIT_LIST_HEAD(&new_od->buffers); + goto retry; +@@ -432,7 +432,7 @@ static unsigned int sysfs_poll(struct file *filp, poll_table *wait) + + sysfs_put_active(attr_sd); + +- if (buffer->event != atomic_read(&od->event)) ++ if (buffer->event != atomic_read_unchecked(&od->event)) + goto trigger; + + return DEFAULT_POLLMASK; +@@ -451,7 +451,7 @@ void sysfs_notify_dirent(struct sysfs_dirent *sd) + + od = sd->s_attr.open; + if (od) { +- atomic_inc(&od->event); ++ atomic_inc_unchecked(&od->event); + wake_up_interruptible(&od->poll); + } + +diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c +index a7ac78f..02158e1 100644 +--- a/fs/sysfs/symlink.c ++++ b/fs/sysfs/symlink.c +@@ -286,7 +286,7 @@ static void *sysfs_follow_link(struct dentry *dentry, struct nameidata *nd) + + static void sysfs_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie) + { +- char *page = nd_get_link(nd); ++ const char *page = nd_get_link(nd); + if (!IS_ERR(page)) + free_page((unsigned long)page); + } +diff --git a/fs/udf/misc.c b/fs/udf/misc.c +index c175b4d..8f36a16 100644 +--- a/fs/udf/misc.c ++++ b/fs/udf/misc.c +@@ -289,7 +289,7 @@ void udf_new_tag(char *data, uint16_t ident, uint16_t version, uint16_t snum, + + u8 udf_tag_checksum(const struct tag *t) + { +- u8 *data = (u8 *)t; ++ const u8 *data = (const u8 *)t; + u8 checksum = 0; + int i; + for (i = 0; i < sizeof(struct tag); ++i) +diff --git a/fs/utimes.c b/fs/utimes.c +index ba653f3..06ea4b1 100644 +--- a/fs/utimes.c ++++ b/fs/utimes.c +@@ -1,6 +1,7 @@ + #include <linux/compiler.h> + #include <linux/file.h> + #include <linux/fs.h> ++#include <linux/security.h> + #include <linux/linkage.h> + #include <linux/mount.h> + #include <linux/namei.h> +@@ -101,6 +102,12 @@ static int utimes_common(struct path *path, struct timespec *times) + goto mnt_drop_write_and_out; + } + } ++ ++ if (!gr_acl_handle_utime(path->dentry, path->mnt)) { ++ error = -EACCES; ++ goto mnt_drop_write_and_out; ++ } ++ + mutex_lock(&inode->i_mutex); + error = notify_change(path->dentry, &newattrs); + mutex_unlock(&inode->i_mutex); +diff --git a/fs/xattr.c b/fs/xattr.c +index 3c8c1cc..a83c398 100644 +--- a/fs/xattr.c ++++ b/fs/xattr.c +@@ -316,7 +316,7 @@ EXPORT_SYMBOL_GPL(vfs_removexattr); + * Extended attribute SET operations + */ + static long +-setxattr(struct dentry *d, const char __user *name, const void __user *value, ++setxattr(struct path *path, const char __user *name, const void __user *value, + size_t size, int flags) + { + int error; +@@ -349,7 +349,12 @@ setxattr(struct dentry *d, const char __user *name, const void __user *value, + } + } + +- error = vfs_setxattr(d, kname, kvalue, size, flags); ++ if (!gr_acl_handle_setxattr(path->dentry, path->mnt)) { ++ error = -EACCES; ++ goto out; ++ } ++ ++ error = vfs_setxattr(path->dentry, kname, kvalue, size, flags); + out: + if (vvalue) + vfree(vvalue); +@@ -370,7 +375,7 @@ SYSCALL_DEFINE5(setxattr, const char __user *, pathname, + return error; + error = mnt_want_write(path.mnt); + if (!error) { +- error = setxattr(path.dentry, name, value, size, flags); ++ error = setxattr(&path, name, value, size, flags); + mnt_drop_write(path.mnt); + } + path_put(&path); +@@ -389,7 +394,7 @@ SYSCALL_DEFINE5(lsetxattr, const char __user *, pathname, + return error; + error = mnt_want_write(path.mnt); + if (!error) { +- error = setxattr(path.dentry, name, value, size, flags); ++ error = setxattr(&path, name, value, size, flags); + mnt_drop_write(path.mnt); + } + path_put(&path); +@@ -400,17 +405,15 @@ SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name, + const void __user *,value, size_t, size, int, flags) + { + struct file *f; +- struct dentry *dentry; + int error = -EBADF; + + f = fget(fd); + if (!f) + return error; +- dentry = f->f_path.dentry; +- audit_inode(NULL, dentry); ++ audit_inode(NULL, f->f_path.dentry); + error = mnt_want_write_file(f); + if (!error) { +- error = setxattr(dentry, name, value, size, flags); ++ error = setxattr(&f->f_path, name, value, size, flags); + mnt_drop_write_file(f); + } + fput(f); +diff --git a/fs/xattr_acl.c b/fs/xattr_acl.c +index 69d06b0..c0996e5 100644 +--- a/fs/xattr_acl.c ++++ b/fs/xattr_acl.c +@@ -17,8 +17,8 @@ + struct posix_acl * + posix_acl_from_xattr(const void *value, size_t size) + { +- posix_acl_xattr_header *header = (posix_acl_xattr_header *)value; +- posix_acl_xattr_entry *entry = (posix_acl_xattr_entry *)(header+1), *end; ++ const posix_acl_xattr_header *header = (const posix_acl_xattr_header *)value; ++ const posix_acl_xattr_entry *entry = (const posix_acl_xattr_entry *)(header+1), *end; + int count; + struct posix_acl *acl; + struct posix_acl_entry *acl_e; +diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c +index 85e7e32..5344e52 100644 +--- a/fs/xfs/xfs_bmap.c ++++ b/fs/xfs/xfs_bmap.c +@@ -190,7 +190,7 @@ xfs_bmap_validate_ret( + int nmap, + int ret_nmap); + #else +-#define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap) ++#define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap) do {} while (0) + #endif /* DEBUG */ + + STATIC int +diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c +index 79d05e8..e3e5861 100644 +--- a/fs/xfs/xfs_dir2_sf.c ++++ b/fs/xfs/xfs_dir2_sf.c +@@ -852,7 +852,15 @@ xfs_dir2_sf_getdents( + } + + ino = xfs_dir2_sfe_get_ino(sfp, sfep); +- if (filldir(dirent, (char *)sfep->name, sfep->namelen, ++ if (dp->i_df.if_u1.if_data == dp->i_df.if_u2.if_inline_data) { ++ char name[sfep->namelen]; ++ memcpy(name, sfep->name, sfep->namelen); ++ if (filldir(dirent, name, sfep->namelen, ++ off & 0x7fffffff, ino, DT_UNKNOWN)) { ++ *offset = off & 0x7fffffff; ++ return 0; ++ } ++ } else if (filldir(dirent, (char *)sfep->name, sfep->namelen, + off & 0x7fffffff, ino, DT_UNKNOWN)) { + *offset = off & 0x7fffffff; + return 0; +diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c +index 91f8ff5..0ce68f9 100644 +--- a/fs/xfs/xfs_ioctl.c ++++ b/fs/xfs/xfs_ioctl.c +@@ -128,7 +128,7 @@ xfs_find_handle( + } + + error = -EFAULT; +- if (copy_to_user(hreq->ohandle, &handle, hsize) || ++ if (hsize > sizeof handle || copy_to_user(hreq->ohandle, &handle, hsize) || + copy_to_user(hreq->ohandlen, &hsize, sizeof(__s32))) + goto out_put; + +diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c +index 3011b87..1ab03e9 100644 +--- a/fs/xfs/xfs_iops.c ++++ b/fs/xfs/xfs_iops.c +@@ -397,7 +397,7 @@ xfs_vn_put_link( + struct nameidata *nd, + void *p) + { +- char *s = nd_get_link(nd); ++ const char *s = nd_get_link(nd); + + if (!IS_ERR(s)) + kfree(s); +diff --git a/grsecurity/Kconfig b/grsecurity/Kconfig +new file mode 100644 +index 0000000..4d533f1 +--- /dev/null ++++ b/grsecurity/Kconfig +@@ -0,0 +1,941 @@ ++# ++# grecurity configuration ++# ++menu "Memory Protections" ++depends on GRKERNSEC ++ ++config GRKERNSEC_KMEM ++ bool "Deny reading/writing to /dev/kmem, /dev/mem, and /dev/port" ++ default y if GRKERNSEC_CONFIG_AUTO ++ select STRICT_DEVMEM if (X86 || ARM || TILE || S390) ++ help ++ If you say Y here, /dev/kmem and /dev/mem won't be allowed to ++ be written to or read from to modify or leak the contents of the running ++ kernel. /dev/port will also not be allowed to be opened. If you have module ++ support disabled, enabling this will close up four ways that are ++ currently used to insert malicious code into the running kernel. ++ Even with all these features enabled, we still highly recommend that ++ you use the RBAC system, as it is still possible for an attacker to ++ modify the running kernel through privileged I/O granted by ioperm/iopl. ++ If you are not using XFree86, you may be able to stop this additional ++ case by enabling the 'Disable privileged I/O' option. Though nothing ++ legitimately writes to /dev/kmem, XFree86 does need to write to /dev/mem, ++ but only to video memory, which is the only writing we allow in this ++ case. If /dev/kmem or /dev/mem are mmaped without PROT_WRITE, they will ++ not be allowed to mprotect it with PROT_WRITE later. ++ It is highly recommended that you say Y here if you meet all the ++ conditions above. ++ ++config GRKERNSEC_VM86 ++ bool "Restrict VM86 mode" ++ default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER) ++ depends on X86_32 ++ ++ help ++ If you say Y here, only processes with CAP_SYS_RAWIO will be able to ++ make use of a special execution mode on 32bit x86 processors called ++ Virtual 8086 (VM86) mode. XFree86 may need vm86 mode for certain ++ video cards and will still work with this option enabled. The purpose ++ of the option is to prevent exploitation of emulation errors in ++ virtualization of vm86 mode like the one discovered in VMWare in 2009. ++ Nearly all users should be able to enable this option. ++ ++config GRKERNSEC_IO ++ bool "Disable privileged I/O" ++ default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER) ++ depends on X86 ++ select RTC_CLASS ++ select RTC_INTF_DEV ++ select RTC_DRV_CMOS ++ ++ help ++ If you say Y here, all ioperm and iopl calls will return an error. ++ Ioperm and iopl can be used to modify the running kernel. ++ Unfortunately, some programs need this access to operate properly, ++ the most notable of which are XFree86 and hwclock. hwclock can be ++ remedied by having RTC support in the kernel, so real-time ++ clock support is enabled if this option is enabled, to ensure ++ that hwclock operates correctly. XFree86 still will not ++ operate correctly with this option enabled, so DO NOT CHOOSE Y ++ IF YOU USE XFree86. If you use XFree86 and you still want to ++ protect your kernel against modification, use the RBAC system. ++ ++config GRKERNSEC_PROC_MEMMAP ++ bool "Harden ASLR against information leaks and entropy reduction" ++ default y if (GRKERNSEC_CONFIG_AUTO || PAX_NOEXEC || PAX_ASLR) ++ depends on PAX_NOEXEC || PAX_ASLR ++ help ++ If you say Y here, the /proc/<pid>/maps and /proc/<pid>/stat files will ++ give no information about the addresses of its mappings if ++ PaX features that rely on random addresses are enabled on the task. ++ In addition to sanitizing this information and disabling other ++ dangerous sources of information, this option causes reads of sensitive ++ /proc/<pid> entries where the file descriptor was opened in a different ++ task than the one performing the read. Such attempts are logged. ++ This option also limits argv/env strings for suid/sgid binaries ++ to 512KB to prevent a complete exhaustion of the stack entropy provided ++ by ASLR. Finally, it places an 8MB stack resource limit on suid/sgid ++ binaries to prevent alternative mmap layouts from being abused. ++ ++ If you use PaX it is essential that you say Y here as it closes up ++ several holes that make full ASLR useless locally. ++ ++config GRKERNSEC_BRUTE ++ bool "Deter exploit bruteforcing" ++ default y if GRKERNSEC_CONFIG_AUTO ++ help ++ If you say Y here, attempts to bruteforce exploits against forking ++ daemons such as apache or sshd, as well as against suid/sgid binaries ++ will be deterred. When a child of a forking daemon is killed by PaX ++ or crashes due to an illegal instruction or other suspicious signal, ++ the parent process will be delayed 30 seconds upon every subsequent ++ fork until the administrator is able to assess the situation and ++ restart the daemon. ++ In the suid/sgid case, the attempt is logged, the user has all their ++ processes terminated, and they are prevented from executing any further ++ processes for 15 minutes. ++ It is recommended that you also enable signal logging in the auditing ++ section so that logs are generated when a process triggers a suspicious ++ signal. ++ If the sysctl option is enabled, a sysctl option with name ++ "deter_bruteforce" is created. ++ ++ ++config GRKERNSEC_MODHARDEN ++ bool "Harden module auto-loading" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on MODULES ++ help ++ If you say Y here, module auto-loading in response to use of some ++ feature implemented by an unloaded module will be restricted to ++ root users. Enabling this option helps defend against attacks ++ by unprivileged users who abuse the auto-loading behavior to ++ cause a vulnerable module to load that is then exploited. ++ ++ If this option prevents a legitimate use of auto-loading for a ++ non-root user, the administrator can execute modprobe manually ++ with the exact name of the module mentioned in the alert log. ++ Alternatively, the administrator can add the module to the list ++ of modules loaded at boot by modifying init scripts. ++ ++ Modification of init scripts will most likely be needed on ++ Ubuntu servers with encrypted home directory support enabled, ++ as the first non-root user logging in will cause the ecb(aes), ++ ecb(aes)-all, cbc(aes), and cbc(aes)-all modules to be loaded. ++ ++config GRKERNSEC_HIDESYM ++ bool "Hide kernel symbols" ++ default y if GRKERNSEC_CONFIG_AUTO ++ select PAX_USERCOPY_SLABS ++ help ++ If you say Y here, getting information on loaded modules, and ++ displaying all kernel symbols through a syscall will be restricted ++ to users with CAP_SYS_MODULE. For software compatibility reasons, ++ /proc/kallsyms will be restricted to the root user. The RBAC ++ system can hide that entry even from root. ++ ++ This option also prevents leaking of kernel addresses through ++ several /proc entries. ++ ++ Note that this option is only effective provided the following ++ conditions are met: ++ 1) The kernel using grsecurity is not precompiled by some distribution ++ 2) You have also enabled GRKERNSEC_DMESG ++ 3) You are using the RBAC system and hiding other files such as your ++ kernel image and System.map. Alternatively, enabling this option ++ causes the permissions on /boot, /lib/modules, and the kernel ++ source directory to change at compile time to prevent ++ reading by non-root users. ++ If the above conditions are met, this option will aid in providing a ++ useful protection against local kernel exploitation of overflows ++ and arbitrary read/write vulnerabilities. ++ ++config GRKERNSEC_KERN_LOCKOUT ++ bool "Active kernel exploit response" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on X86 || ARM || PPC || SPARC ++ help ++ If you say Y here, when a PaX alert is triggered due to suspicious ++ activity in the kernel (from KERNEXEC/UDEREF/USERCOPY) ++ or an OOPS occurs due to bad memory accesses, instead of just ++ terminating the offending process (and potentially allowing ++ a subsequent exploit from the same user), we will take one of two ++ actions: ++ If the user was root, we will panic the system ++ If the user was non-root, we will log the attempt, terminate ++ all processes owned by the user, then prevent them from creating ++ any new processes until the system is restarted ++ This deters repeated kernel exploitation/bruteforcing attempts ++ and is useful for later forensics. ++ ++endmenu ++menu "Role Based Access Control Options" ++depends on GRKERNSEC ++ ++config GRKERNSEC_RBAC_DEBUG ++ bool ++ ++config GRKERNSEC_NO_RBAC ++ bool "Disable RBAC system" ++ help ++ If you say Y here, the /dev/grsec device will be removed from the kernel, ++ preventing the RBAC system from being enabled. You should only say Y ++ here if you have no intention of using the RBAC system, so as to prevent ++ an attacker with root access from misusing the RBAC system to hide files ++ and processes when loadable module support and /dev/[k]mem have been ++ locked down. ++ ++config GRKERNSEC_ACL_HIDEKERN ++ bool "Hide kernel processes" ++ help ++ If you say Y here, all kernel threads will be hidden to all ++ processes but those whose subject has the "view hidden processes" ++ flag. ++ ++config GRKERNSEC_ACL_MAXTRIES ++ int "Maximum tries before password lockout" ++ default 3 ++ help ++ This option enforces the maximum number of times a user can attempt ++ to authorize themselves with the grsecurity RBAC system before being ++ denied the ability to attempt authorization again for a specified time. ++ The lower the number, the harder it will be to brute-force a password. ++ ++config GRKERNSEC_ACL_TIMEOUT ++ int "Time to wait after max password tries, in seconds" ++ default 30 ++ help ++ This option specifies the time the user must wait after attempting to ++ authorize to the RBAC system with the maximum number of invalid ++ passwords. The higher the number, the harder it will be to brute-force ++ a password. ++ ++endmenu ++menu "Filesystem Protections" ++depends on GRKERNSEC ++ ++config GRKERNSEC_PROC ++ bool "Proc restrictions" ++ default y if GRKERNSEC_CONFIG_AUTO ++ help ++ If you say Y here, the permissions of the /proc filesystem ++ will be altered to enhance system security and privacy. You MUST ++ choose either a user only restriction or a user and group restriction. ++ Depending upon the option you choose, you can either restrict users to ++ see only the processes they themselves run, or choose a group that can ++ view all processes and files normally restricted to root if you choose ++ the "restrict to user only" option. NOTE: If you're running identd or ++ ntpd as a non-root user, you will have to run it as the group you ++ specify here. ++ ++config GRKERNSEC_PROC_USER ++ bool "Restrict /proc to user only" ++ depends on GRKERNSEC_PROC ++ help ++ If you say Y here, non-root users will only be able to view their own ++ processes, and restricts them from viewing network-related information, ++ and viewing kernel symbol and module information. ++ ++config GRKERNSEC_PROC_USERGROUP ++ bool "Allow special group" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on GRKERNSEC_PROC && !GRKERNSEC_PROC_USER ++ help ++ If you say Y here, you will be able to select a group that will be ++ able to view all processes and network-related information. If you've ++ enabled GRKERNSEC_HIDESYM, kernel and symbol information may still ++ remain hidden. This option is useful if you want to run identd as ++ a non-root user. ++ ++config GRKERNSEC_PROC_GID ++ int "GID for special group" ++ depends on GRKERNSEC_PROC_USERGROUP ++ default 1001 ++ ++config GRKERNSEC_PROC_ADD ++ bool "Additional restrictions" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on GRKERNSEC_PROC_USER || GRKERNSEC_PROC_USERGROUP ++ help ++ If you say Y here, additional restrictions will be placed on ++ /proc that keep normal users from viewing device information and ++ slabinfo information that could be useful for exploits. ++ ++config GRKERNSEC_LINK ++ bool "Linking restrictions" ++ default y if GRKERNSEC_CONFIG_AUTO ++ help ++ If you say Y here, /tmp race exploits will be prevented, since users ++ will no longer be able to follow symlinks owned by other users in ++ world-writable +t directories (e.g. /tmp), unless the owner of the ++ symlink is the owner of the directory. users will also not be ++ able to hardlink to files they do not own. If the sysctl option is ++ enabled, a sysctl option with name "linking_restrictions" is created. ++ ++config GRKERNSEC_SYMLINKOWN ++ bool "Kernel-enforced SymlinksIfOwnerMatch" ++ default y if GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER ++ help ++ Apache's SymlinksIfOwnerMatch option has an inherent race condition ++ that prevents it from being used as a security feature. As Apache ++ verifies the symlink by performing a stat() against the target of ++ the symlink before it is followed, an attacker can setup a symlink ++ to point to a same-owned file, then replace the symlink with one ++ that targets another user's file just after Apache "validates" the ++ symlink -- a classic TOCTOU race. If you say Y here, a complete, ++ race-free replacement for Apache's "SymlinksIfOwnerMatch" option ++ will be in place for the group you specify. If the sysctl option ++ is enabled, a sysctl option with name "enforce_symlinksifowner" is ++ created. ++ ++config GRKERNSEC_SYMLINKOWN_GID ++ int "GID for users with kernel-enforced SymlinksIfOwnerMatch" ++ depends on GRKERNSEC_SYMLINKOWN ++ default 1006 ++ help ++ Setting this GID determines what group kernel-enforced ++ SymlinksIfOwnerMatch will be enabled for. If the sysctl option ++ is enabled, a sysctl option with name "symlinkown_gid" is created. ++ ++config GRKERNSEC_FIFO ++ bool "FIFO restrictions" ++ default y if GRKERNSEC_CONFIG_AUTO ++ help ++ If you say Y here, users will not be able to write to FIFOs they don't ++ own in world-writable +t directories (e.g. /tmp), unless the owner of ++ the FIFO is the same owner of the directory it's held in. If the sysctl ++ option is enabled, a sysctl option with name "fifo_restrictions" is ++ created. ++ ++config GRKERNSEC_SYSFS_RESTRICT ++ bool "Sysfs/debugfs restriction" ++ default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER) ++ depends on SYSFS ++ help ++ If you say Y here, sysfs (the pseudo-filesystem mounted at /sys) and ++ any filesystem normally mounted under it (e.g. debugfs) will be ++ mostly accessible only by root. These filesystems generally provide access ++ to hardware and debug information that isn't appropriate for unprivileged ++ users of the system. Sysfs and debugfs have also become a large source ++ of new vulnerabilities, ranging from infoleaks to local compromise. ++ There has been very little oversight with an eye toward security involved ++ in adding new exporters of information to these filesystems, so their ++ use is discouraged. ++ For reasons of compatibility, a few directories have been whitelisted ++ for access by non-root users: ++ /sys/fs/selinux ++ /sys/fs/fuse ++ /sys/devices/system/cpu ++ ++config GRKERNSEC_ROFS ++ bool "Runtime read-only mount protection" ++ help ++ If you say Y here, a sysctl option with name "romount_protect" will ++ be created. By setting this option to 1 at runtime, filesystems ++ will be protected in the following ways: ++ * No new writable mounts will be allowed ++ * Existing read-only mounts won't be able to be remounted read/write ++ * Write operations will be denied on all block devices ++ This option acts independently of grsec_lock: once it is set to 1, ++ it cannot be turned off. Therefore, please be mindful of the resulting ++ behavior if this option is enabled in an init script on a read-only ++ filesystem. This feature is mainly intended for secure embedded systems. ++ ++config GRKERNSEC_CHROOT ++ bool "Chroot jail restrictions" ++ default y if GRKERNSEC_CONFIG_AUTO ++ help ++ If you say Y here, you will be able to choose several options that will ++ make breaking out of a chrooted jail much more difficult. If you ++ encounter no software incompatibilities with the following options, it ++ is recommended that you enable each one. ++ ++config GRKERNSEC_CHROOT_MOUNT ++ bool "Deny mounts" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on GRKERNSEC_CHROOT ++ help ++ If you say Y here, processes inside a chroot will not be able to ++ mount or remount filesystems. If the sysctl option is enabled, a ++ sysctl option with name "chroot_deny_mount" is created. ++ ++config GRKERNSEC_CHROOT_DOUBLE ++ bool "Deny double-chroots" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on GRKERNSEC_CHROOT ++ help ++ If you say Y here, processes inside a chroot will not be able to chroot ++ again outside the chroot. This is a widely used method of breaking ++ out of a chroot jail and should not be allowed. If the sysctl ++ option is enabled, a sysctl option with name ++ "chroot_deny_chroot" is created. ++ ++config GRKERNSEC_CHROOT_PIVOT ++ bool "Deny pivot_root in chroot" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on GRKERNSEC_CHROOT ++ help ++ If you say Y here, processes inside a chroot will not be able to use ++ a function called pivot_root() that was introduced in Linux 2.3.41. It ++ works similar to chroot in that it changes the root filesystem. This ++ function could be misused in a chrooted process to attempt to break out ++ of the chroot, and therefore should not be allowed. If the sysctl ++ option is enabled, a sysctl option with name "chroot_deny_pivot" is ++ created. ++ ++config GRKERNSEC_CHROOT_CHDIR ++ bool "Enforce chdir(\"/\") on all chroots" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on GRKERNSEC_CHROOT ++ help ++ If you say Y here, the current working directory of all newly-chrooted ++ applications will be set to the the root directory of the chroot. ++ The man page on chroot(2) states: ++ Note that this call does not change the current working ++ directory, so that `.' can be outside the tree rooted at ++ `/'. In particular, the super-user can escape from a ++ `chroot jail' by doing `mkdir foo; chroot foo; cd ..'. ++ ++ It is recommended that you say Y here, since it's not known to break ++ any software. If the sysctl option is enabled, a sysctl option with ++ name "chroot_enforce_chdir" is created. ++ ++config GRKERNSEC_CHROOT_CHMOD ++ bool "Deny (f)chmod +s" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on GRKERNSEC_CHROOT ++ help ++ If you say Y here, processes inside a chroot will not be able to chmod ++ or fchmod files to make them have suid or sgid bits. This protects ++ against another published method of breaking a chroot. If the sysctl ++ option is enabled, a sysctl option with name "chroot_deny_chmod" is ++ created. ++ ++config GRKERNSEC_CHROOT_FCHDIR ++ bool "Deny fchdir out of chroot" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on GRKERNSEC_CHROOT ++ help ++ If you say Y here, a well-known method of breaking chroots by fchdir'ing ++ to a file descriptor of the chrooting process that points to a directory ++ outside the filesystem will be stopped. If the sysctl option ++ is enabled, a sysctl option with name "chroot_deny_fchdir" is created. ++ ++config GRKERNSEC_CHROOT_MKNOD ++ bool "Deny mknod" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on GRKERNSEC_CHROOT ++ help ++ If you say Y here, processes inside a chroot will not be allowed to ++ mknod. The problem with using mknod inside a chroot is that it ++ would allow an attacker to create a device entry that is the same ++ as one on the physical root of your system, which could range from ++ anything from the console device to a device for your harddrive (which ++ they could then use to wipe the drive or steal data). It is recommended ++ that you say Y here, unless you run into software incompatibilities. ++ If the sysctl option is enabled, a sysctl option with name ++ "chroot_deny_mknod" is created. ++ ++config GRKERNSEC_CHROOT_SHMAT ++ bool "Deny shmat() out of chroot" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on GRKERNSEC_CHROOT ++ help ++ If you say Y here, processes inside a chroot will not be able to attach ++ to shared memory segments that were created outside of the chroot jail. ++ It is recommended that you say Y here. If the sysctl option is enabled, ++ a sysctl option with name "chroot_deny_shmat" is created. ++ ++config GRKERNSEC_CHROOT_UNIX ++ bool "Deny access to abstract AF_UNIX sockets out of chroot" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on GRKERNSEC_CHROOT ++ help ++ If you say Y here, processes inside a chroot will not be able to ++ connect to abstract (meaning not belonging to a filesystem) Unix ++ domain sockets that were bound outside of a chroot. It is recommended ++ that you say Y here. If the sysctl option is enabled, a sysctl option ++ with name "chroot_deny_unix" is created. ++ ++config GRKERNSEC_CHROOT_FINDTASK ++ bool "Protect outside processes" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on GRKERNSEC_CHROOT ++ help ++ If you say Y here, processes inside a chroot will not be able to ++ kill, send signals with fcntl, ptrace, capget, getpgid, setpgid, ++ getsid, or view any process outside of the chroot. If the sysctl ++ option is enabled, a sysctl option with name "chroot_findtask" is ++ created. ++ ++config GRKERNSEC_CHROOT_NICE ++ bool "Restrict priority changes" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on GRKERNSEC_CHROOT ++ help ++ If you say Y here, processes inside a chroot will not be able to raise ++ the priority of processes in the chroot, or alter the priority of ++ processes outside the chroot. This provides more security than simply ++ removing CAP_SYS_NICE from the process' capability set. If the ++ sysctl option is enabled, a sysctl option with name "chroot_restrict_nice" ++ is created. ++ ++config GRKERNSEC_CHROOT_SYSCTL ++ bool "Deny sysctl writes" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on GRKERNSEC_CHROOT ++ help ++ If you say Y here, an attacker in a chroot will not be able to ++ write to sysctl entries, either by sysctl(2) or through a /proc ++ interface. It is strongly recommended that you say Y here. If the ++ sysctl option is enabled, a sysctl option with name ++ "chroot_deny_sysctl" is created. ++ ++config GRKERNSEC_CHROOT_CAPS ++ bool "Capability restrictions" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on GRKERNSEC_CHROOT ++ help ++ If you say Y here, the capabilities on all processes within a ++ chroot jail will be lowered to stop module insertion, raw i/o, ++ system and net admin tasks, rebooting the system, modifying immutable ++ files, modifying IPC owned by another, and changing the system time. ++ This is left an option because it can break some apps. Disable this ++ if your chrooted apps are having problems performing those kinds of ++ tasks. If the sysctl option is enabled, a sysctl option with ++ name "chroot_caps" is created. ++ ++endmenu ++menu "Kernel Auditing" ++depends on GRKERNSEC ++ ++config GRKERNSEC_AUDIT_GROUP ++ bool "Single group for auditing" ++ help ++ If you say Y here, the exec, chdir, and (un)mount logging features ++ will only operate on a group you specify. This option is recommended ++ if you only want to watch certain users instead of having a large ++ amount of logs from the entire system. If the sysctl option is enabled, ++ a sysctl option with name "audit_group" is created. ++ ++config GRKERNSEC_AUDIT_GID ++ int "GID for auditing" ++ depends on GRKERNSEC_AUDIT_GROUP ++ default 1007 ++ ++config GRKERNSEC_EXECLOG ++ bool "Exec logging" ++ help ++ If you say Y here, all execve() calls will be logged (since the ++ other exec*() calls are frontends to execve(), all execution ++ will be logged). Useful for shell-servers that like to keep track ++ of their users. If the sysctl option is enabled, a sysctl option with ++ name "exec_logging" is created. ++ WARNING: This option when enabled will produce a LOT of logs, especially ++ on an active system. ++ ++config GRKERNSEC_RESLOG ++ bool "Resource logging" ++ default y if GRKERNSEC_CONFIG_AUTO ++ help ++ If you say Y here, all attempts to overstep resource limits will ++ be logged with the resource name, the requested size, and the current ++ limit. It is highly recommended that you say Y here. If the sysctl ++ option is enabled, a sysctl option with name "resource_logging" is ++ created. If the RBAC system is enabled, the sysctl value is ignored. ++ ++config GRKERNSEC_CHROOT_EXECLOG ++ bool "Log execs within chroot" ++ help ++ If you say Y here, all executions inside a chroot jail will be logged ++ to syslog. This can cause a large amount of logs if certain ++ applications (eg. djb's daemontools) are installed on the system, and ++ is therefore left as an option. If the sysctl option is enabled, a ++ sysctl option with name "chroot_execlog" is created. ++ ++config GRKERNSEC_AUDIT_PTRACE ++ bool "Ptrace logging" ++ help ++ If you say Y here, all attempts to attach to a process via ptrace ++ will be logged. If the sysctl option is enabled, a sysctl option ++ with name "audit_ptrace" is created. ++ ++config GRKERNSEC_AUDIT_CHDIR ++ bool "Chdir logging" ++ help ++ If you say Y here, all chdir() calls will be logged. If the sysctl ++ option is enabled, a sysctl option with name "audit_chdir" is created. ++ ++config GRKERNSEC_AUDIT_MOUNT ++ bool "(Un)Mount logging" ++ help ++ If you say Y here, all mounts and unmounts will be logged. If the ++ sysctl option is enabled, a sysctl option with name "audit_mount" is ++ created. ++ ++config GRKERNSEC_SIGNAL ++ bool "Signal logging" ++ default y if GRKERNSEC_CONFIG_AUTO ++ help ++ If you say Y here, certain important signals will be logged, such as ++ SIGSEGV, which will as a result inform you of when a error in a program ++ occurred, which in some cases could mean a possible exploit attempt. ++ If the sysctl option is enabled, a sysctl option with name ++ "signal_logging" is created. ++ ++config GRKERNSEC_FORKFAIL ++ bool "Fork failure logging" ++ help ++ If you say Y here, all failed fork() attempts will be logged. ++ This could suggest a fork bomb, or someone attempting to overstep ++ their process limit. If the sysctl option is enabled, a sysctl option ++ with name "forkfail_logging" is created. ++ ++config GRKERNSEC_TIME ++ bool "Time change logging" ++ default y if GRKERNSEC_CONFIG_AUTO ++ help ++ If you say Y here, any changes of the system clock will be logged. ++ If the sysctl option is enabled, a sysctl option with name ++ "timechange_logging" is created. ++ ++config GRKERNSEC_PROC_IPADDR ++ bool "/proc/<pid>/ipaddr support" ++ default y if GRKERNSEC_CONFIG_AUTO ++ help ++ If you say Y here, a new entry will be added to each /proc/<pid> ++ directory that contains the IP address of the person using the task. ++ The IP is carried across local TCP and AF_UNIX stream sockets. ++ This information can be useful for IDS/IPSes to perform remote response ++ to a local attack. The entry is readable by only the owner of the ++ process (and root if he has CAP_DAC_OVERRIDE, which can be removed via ++ the RBAC system), and thus does not create privacy concerns. ++ ++config GRKERNSEC_RWXMAP_LOG ++ bool 'Denied RWX mmap/mprotect logging' ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on PAX_MPROTECT && !PAX_EMUPLT && !PAX_EMUSIGRT ++ help ++ If you say Y here, calls to mmap() and mprotect() with explicit ++ usage of PROT_WRITE and PROT_EXEC together will be logged when ++ denied by the PAX_MPROTECT feature. If the sysctl option is ++ enabled, a sysctl option with name "rwxmap_logging" is created. ++ ++config GRKERNSEC_AUDIT_TEXTREL ++ bool 'ELF text relocations logging (READ HELP)' ++ depends on PAX_MPROTECT ++ help ++ If you say Y here, text relocations will be logged with the filename ++ of the offending library or binary. The purpose of the feature is ++ to help Linux distribution developers get rid of libraries and ++ binaries that need text relocations which hinder the future progress ++ of PaX. Only Linux distribution developers should say Y here, and ++ never on a production machine, as this option creates an information ++ leak that could aid an attacker in defeating the randomization of ++ a single memory region. If the sysctl option is enabled, a sysctl ++ option with name "audit_textrel" is created. ++ ++endmenu ++ ++menu "Executable Protections" ++depends on GRKERNSEC ++ ++config GRKERNSEC_DMESG ++ bool "Dmesg(8) restriction" ++ default y if GRKERNSEC_CONFIG_AUTO ++ help ++ If you say Y here, non-root users will not be able to use dmesg(8) ++ to view up to the last 4kb of messages in the kernel's log buffer. ++ The kernel's log buffer often contains kernel addresses and other ++ identifying information useful to an attacker in fingerprinting a ++ system for a targeted exploit. ++ If the sysctl option is enabled, a sysctl option with name "dmesg" is ++ created. ++ ++config GRKERNSEC_HARDEN_PTRACE ++ bool "Deter ptrace-based process snooping" ++ default y if GRKERNSEC_CONFIG_AUTO ++ help ++ If you say Y here, TTY sniffers and other malicious monitoring ++ programs implemented through ptrace will be defeated. If you ++ have been using the RBAC system, this option has already been ++ enabled for several years for all users, with the ability to make ++ fine-grained exceptions. ++ ++ This option only affects the ability of non-root users to ptrace ++ processes that are not a descendent of the ptracing process. ++ This means that strace ./binary and gdb ./binary will still work, ++ but attaching to arbitrary processes will not. If the sysctl ++ option is enabled, a sysctl option with name "harden_ptrace" is ++ created. ++ ++config GRKERNSEC_PTRACE_READEXEC ++ bool "Require read access to ptrace sensitive binaries" ++ default y if GRKERNSEC_CONFIG_AUTO ++ help ++ If you say Y here, unprivileged users will not be able to ptrace unreadable ++ binaries. This option is useful in environments that ++ remove the read bits (e.g. file mode 4711) from suid binaries to ++ prevent infoleaking of their contents. This option adds ++ consistency to the use of that file mode, as the binary could normally ++ be read out when run without privileges while ptracing. ++ ++ If the sysctl option is enabled, a sysctl option with name "ptrace_readexec" ++ is created. ++ ++config GRKERNSEC_SETXID ++ bool "Enforce consistent multithreaded privileges" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on (X86 || SPARC64 || PPC || ARM || MIPS) ++ help ++ If you say Y here, a change from a root uid to a non-root uid ++ in a multithreaded application will cause the resulting uids, ++ gids, supplementary groups, and capabilities in that thread ++ to be propagated to the other threads of the process. In most ++ cases this is unnecessary, as glibc will emulate this behavior ++ on behalf of the application. Other libcs do not act in the ++ same way, allowing the other threads of the process to continue ++ running with root privileges. If the sysctl option is enabled, ++ a sysctl option with name "consistent_setxid" is created. ++ ++config GRKERNSEC_TPE ++ bool "Trusted Path Execution (TPE)" ++ default y if GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER ++ help ++ If you say Y here, you will be able to choose a gid to add to the ++ supplementary groups of users you want to mark as "untrusted." ++ These users will not be able to execute any files that are not in ++ root-owned directories writable only by root. If the sysctl option ++ is enabled, a sysctl option with name "tpe" is created. ++ ++config GRKERNSEC_TPE_ALL ++ bool "Partially restrict all non-root users" ++ depends on GRKERNSEC_TPE ++ help ++ If you say Y here, all non-root users will be covered under ++ a weaker TPE restriction. This is separate from, and in addition to, ++ the main TPE options that you have selected elsewhere. Thus, if a ++ "trusted" GID is chosen, this restriction applies to even that GID. ++ Under this restriction, all non-root users will only be allowed to ++ execute files in directories they own that are not group or ++ world-writable, or in directories owned by root and writable only by ++ root. If the sysctl option is enabled, a sysctl option with name ++ "tpe_restrict_all" is created. ++ ++config GRKERNSEC_TPE_INVERT ++ bool "Invert GID option" ++ depends on GRKERNSEC_TPE ++ help ++ If you say Y here, the group you specify in the TPE configuration will ++ decide what group TPE restrictions will be *disabled* for. This ++ option is useful if you want TPE restrictions to be applied to most ++ users on the system. If the sysctl option is enabled, a sysctl option ++ with name "tpe_invert" is created. Unlike other sysctl options, this ++ entry will default to on for backward-compatibility. ++ ++config GRKERNSEC_TPE_GID ++ int "GID for untrusted users" ++ depends on GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT ++ default 1005 ++ help ++ Setting this GID determines what group TPE restrictions will be ++ *enabled* for. If the sysctl option is enabled, a sysctl option ++ with name "tpe_gid" is created. ++ ++config GRKERNSEC_TPE_GID ++ int "GID for trusted users" ++ depends on GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT ++ default 1005 ++ help ++ Setting this GID determines what group TPE restrictions will be ++ *disabled* for. If the sysctl option is enabled, a sysctl option ++ with name "tpe_gid" is created. ++ ++endmenu ++menu "Network Protections" ++depends on GRKERNSEC ++ ++config GRKERNSEC_RANDNET ++ bool "Larger entropy pools" ++ default y if GRKERNSEC_CONFIG_AUTO ++ help ++ If you say Y here, the entropy pools used for many features of Linux ++ and grsecurity will be doubled in size. Since several grsecurity ++ features use additional randomness, it is recommended that you say Y ++ here. Saying Y here has a similar effect as modifying ++ /proc/sys/kernel/random/poolsize. ++ ++config GRKERNSEC_BLACKHOLE ++ bool "TCP/UDP blackhole and LAST_ACK DoS prevention" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on NET ++ help ++ If you say Y here, neither TCP resets nor ICMP ++ destination-unreachable packets will be sent in response to packets ++ sent to ports for which no associated listening process exists. ++ This feature supports both IPV4 and IPV6 and exempts the ++ loopback interface from blackholing. Enabling this feature ++ makes a host more resilient to DoS attacks and reduces network ++ visibility against scanners. ++ ++ The blackhole feature as-implemented is equivalent to the FreeBSD ++ blackhole feature, as it prevents RST responses to all packets, not ++ just SYNs. Under most application behavior this causes no ++ problems, but applications (like haproxy) may not close certain ++ connections in a way that cleanly terminates them on the remote ++ end, leaving the remote host in LAST_ACK state. Because of this ++ side-effect and to prevent intentional LAST_ACK DoSes, this ++ feature also adds automatic mitigation against such attacks. ++ The mitigation drastically reduces the amount of time a socket ++ can spend in LAST_ACK state. If you're using haproxy and not ++ all servers it connects to have this option enabled, consider ++ disabling this feature on the haproxy host. ++ ++ If the sysctl option is enabled, two sysctl options with names ++ "ip_blackhole" and "lastack_retries" will be created. ++ While "ip_blackhole" takes the standard zero/non-zero on/off ++ toggle, "lastack_retries" uses the same kinds of values as ++ "tcp_retries1" and "tcp_retries2". The default value of 4 ++ prevents a socket from lasting more than 45 seconds in LAST_ACK ++ state. ++ ++config GRKERNSEC_SOCKET ++ bool "Socket restrictions" ++ depends on NET ++ help ++ If you say Y here, you will be able to choose from several options. ++ If you assign a GID on your system and add it to the supplementary ++ groups of users you want to restrict socket access to, this patch ++ will perform up to three things, based on the option(s) you choose. ++ ++config GRKERNSEC_SOCKET_ALL ++ bool "Deny any sockets to group" ++ depends on GRKERNSEC_SOCKET ++ help ++ If you say Y here, you will be able to choose a GID of whose users will ++ be unable to connect to other hosts from your machine or run server ++ applications from your machine. If the sysctl option is enabled, a ++ sysctl option with name "socket_all" is created. ++ ++config GRKERNSEC_SOCKET_ALL_GID ++ int "GID to deny all sockets for" ++ depends on GRKERNSEC_SOCKET_ALL ++ default 1004 ++ help ++ Here you can choose the GID to disable socket access for. Remember to ++ add the users you want socket access disabled for to the GID ++ specified here. If the sysctl option is enabled, a sysctl option ++ with name "socket_all_gid" is created. ++ ++config GRKERNSEC_SOCKET_CLIENT ++ bool "Deny client sockets to group" ++ depends on GRKERNSEC_SOCKET ++ help ++ If you say Y here, you will be able to choose a GID of whose users will ++ be unable to connect to other hosts from your machine, but will be ++ able to run servers. If this option is enabled, all users in the group ++ you specify will have to use passive mode when initiating ftp transfers ++ from the shell on your machine. If the sysctl option is enabled, a ++ sysctl option with name "socket_client" is created. ++ ++config GRKERNSEC_SOCKET_CLIENT_GID ++ int "GID to deny client sockets for" ++ depends on GRKERNSEC_SOCKET_CLIENT ++ default 1003 ++ help ++ Here you can choose the GID to disable client socket access for. ++ Remember to add the users you want client socket access disabled for to ++ the GID specified here. If the sysctl option is enabled, a sysctl ++ option with name "socket_client_gid" is created. ++ ++config GRKERNSEC_SOCKET_SERVER ++ bool "Deny server sockets to group" ++ depends on GRKERNSEC_SOCKET ++ help ++ If you say Y here, you will be able to choose a GID of whose users will ++ be unable to run server applications from your machine. If the sysctl ++ option is enabled, a sysctl option with name "socket_server" is created. ++ ++config GRKERNSEC_SOCKET_SERVER_GID ++ int "GID to deny server sockets for" ++ depends on GRKERNSEC_SOCKET_SERVER ++ default 1002 ++ help ++ Here you can choose the GID to disable server socket access for. ++ Remember to add the users you want server socket access disabled for to ++ the GID specified here. If the sysctl option is enabled, a sysctl ++ option with name "socket_server_gid" is created. ++ ++endmenu ++menu "Sysctl Support" ++depends on GRKERNSEC && SYSCTL ++ ++config GRKERNSEC_SYSCTL ++ bool "Sysctl support" ++ default y if GRKERNSEC_CONFIG_AUTO ++ help ++ If you say Y here, you will be able to change the options that ++ grsecurity runs with at bootup, without having to recompile your ++ kernel. You can echo values to files in /proc/sys/kernel/grsecurity ++ to enable (1) or disable (0) various features. All the sysctl entries ++ are mutable until the "grsec_lock" entry is set to a non-zero value. ++ All features enabled in the kernel configuration are disabled at boot ++ if you do not say Y to the "Turn on features by default" option. ++ All options should be set at startup, and the grsec_lock entry should ++ be set to a non-zero value after all the options are set. ++ *THIS IS EXTREMELY IMPORTANT* ++ ++config GRKERNSEC_SYSCTL_DISTRO ++ bool "Extra sysctl support for distro makers (READ HELP)" ++ depends on GRKERNSEC_SYSCTL && GRKERNSEC_IO ++ help ++ If you say Y here, additional sysctl options will be created ++ for features that affect processes running as root. Therefore, ++ it is critical when using this option that the grsec_lock entry be ++ enabled after boot. Only distros with prebuilt kernel packages ++ with this option enabled that can ensure grsec_lock is enabled ++ after boot should use this option. ++ *Failure to set grsec_lock after boot makes all grsec features ++ this option covers useless* ++ ++ Currently this option creates the following sysctl entries: ++ "Disable Privileged I/O": "disable_priv_io" ++ ++config GRKERNSEC_SYSCTL_ON ++ bool "Turn on features by default" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on GRKERNSEC_SYSCTL ++ help ++ If you say Y here, instead of having all features enabled in the ++ kernel configuration disabled at boot time, the features will be ++ enabled at boot time. It is recommended you say Y here unless ++ there is some reason you would want all sysctl-tunable features to ++ be disabled by default. As mentioned elsewhere, it is important ++ to enable the grsec_lock entry once you have finished modifying ++ the sysctl entries. ++ ++endmenu ++menu "Logging Options" ++depends on GRKERNSEC ++ ++config GRKERNSEC_FLOODTIME ++ int "Seconds in between log messages (minimum)" ++ default 10 ++ help ++ This option allows you to enforce the number of seconds between ++ grsecurity log messages. The default should be suitable for most ++ people, however, if you choose to change it, choose a value small enough ++ to allow informative logs to be produced, but large enough to ++ prevent flooding. ++ ++config GRKERNSEC_FLOODBURST ++ int "Number of messages in a burst (maximum)" ++ default 6 ++ help ++ This option allows you to choose the maximum number of messages allowed ++ within the flood time interval you chose in a separate option. The ++ default should be suitable for most people, however if you find that ++ many of your logs are being interpreted as flooding, you may want to ++ raise this value. ++ ++endmenu +diff --git a/grsecurity/Makefile b/grsecurity/Makefile +new file mode 100644 +index 0000000..1b9afa9 +--- /dev/null ++++ b/grsecurity/Makefile +@@ -0,0 +1,38 @@ ++# grsecurity's ACL system was originally written in 2001 by Michael Dalton ++# during 2001-2009 it has been completely redesigned by Brad Spengler ++# into an RBAC system ++# ++# All code in this directory and various hooks inserted throughout the kernel ++# are copyright Brad Spengler - Open Source Security, Inc., and released ++# under the GPL v2 or higher ++ ++KBUILD_CFLAGS += -Werror ++ ++obj-y = grsec_chdir.o grsec_chroot.o grsec_exec.o grsec_fifo.o grsec_fork.o \ ++ grsec_mount.o grsec_sig.o grsec_sysctl.o \ ++ grsec_time.o grsec_tpe.o grsec_link.o grsec_pax.o grsec_ptrace.o ++ ++obj-$(CONFIG_GRKERNSEC) += grsec_init.o grsum.o gracl.o gracl_segv.o \ ++ gracl_cap.o gracl_alloc.o gracl_shm.o grsec_mem.o gracl_fs.o \ ++ gracl_learn.o grsec_log.o ++obj-$(CONFIG_GRKERNSEC_RESLOG) += gracl_res.o ++ ++ifdef CONFIG_NET ++obj-y += grsec_sock.o ++obj-$(CONFIG_GRKERNSEC) += gracl_ip.o ++endif ++ ++ifndef CONFIG_GRKERNSEC ++obj-y += grsec_disabled.o ++endif ++ ++ifdef CONFIG_GRKERNSEC_HIDESYM ++extra-y := grsec_hidesym.o ++$(obj)/grsec_hidesym.o: ++ @-chmod -f 500 /boot ++ @-chmod -f 500 /lib/modules ++ @-chmod -f 500 /lib64/modules ++ @-chmod -f 500 /lib32/modules ++ @-chmod -f 700 . ++ @echo ' grsec: protected kernel image paths' ++endif +diff --git a/grsecurity/gracl.c b/grsecurity/gracl.c +new file mode 100644 +index 0000000..7a5922f +--- /dev/null ++++ b/grsecurity/gracl.c +@@ -0,0 +1,4016 @@ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/sched.h> ++#include <linux/mm.h> ++#include <linux/file.h> ++#include <linux/fs.h> ++#include <linux/namei.h> ++#include <linux/mount.h> ++#include <linux/tty.h> ++#include <linux/proc_fs.h> ++#include <linux/lglock.h> ++#include <linux/slab.h> ++#include <linux/vmalloc.h> ++#include <linux/types.h> ++#include <linux/sysctl.h> ++#include <linux/netdevice.h> ++#include <linux/ptrace.h> ++#include <linux/gracl.h> ++#include <linux/gralloc.h> ++#include <linux/security.h> ++#include <linux/grinternal.h> ++#include <linux/pid_namespace.h> ++#include <linux/stop_machine.h> ++#include <linux/fdtable.h> ++#include <linux/percpu.h> ++#include "../fs/mount.h" ++ ++#include <asm/uaccess.h> ++#include <asm/errno.h> ++#include <asm/mman.h> ++ ++static struct acl_role_db acl_role_set; ++static struct name_db name_set; ++static struct inodev_db inodev_set; ++ ++/* for keeping track of userspace pointers used for subjects, so we ++ can share references in the kernel as well ++*/ ++ ++static struct path real_root; ++ ++static struct acl_subj_map_db subj_map_set; ++ ++static struct acl_role_label *default_role; ++ ++static struct acl_role_label *role_list; ++ ++static u16 acl_sp_role_value; ++ ++extern char *gr_shared_page[4]; ++static DEFINE_MUTEX(gr_dev_mutex); ++DEFINE_RWLOCK(gr_inode_lock); ++ ++struct gr_arg *gr_usermode; ++ ++static unsigned int gr_status __read_only = GR_STATUS_INIT; ++ ++extern int chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum); ++extern void gr_clear_learn_entries(void); ++ ++#ifdef CONFIG_GRKERNSEC_RESLOG ++extern void gr_log_resource(const struct task_struct *task, ++ const int res, const unsigned long wanted, const int gt); ++#endif ++ ++unsigned char *gr_system_salt; ++unsigned char *gr_system_sum; ++ ++static struct sprole_pw **acl_special_roles = NULL; ++static __u16 num_sprole_pws = 0; ++ ++static struct acl_role_label *kernel_role = NULL; ++ ++static unsigned int gr_auth_attempts = 0; ++static unsigned long gr_auth_expires = 0UL; ++ ++#ifdef CONFIG_NET ++extern struct vfsmount *sock_mnt; ++#endif ++ ++extern struct vfsmount *pipe_mnt; ++extern struct vfsmount *shm_mnt; ++#ifdef CONFIG_HUGETLBFS ++extern struct vfsmount *hugetlbfs_vfsmount; ++#endif ++ ++static struct acl_object_label *fakefs_obj_rw; ++static struct acl_object_label *fakefs_obj_rwx; ++ ++extern int gr_init_uidset(void); ++extern void gr_free_uidset(void); ++extern void gr_remove_uid(uid_t uid); ++extern int gr_find_uid(uid_t uid); ++ ++DECLARE_BRLOCK(vfsmount_lock); ++ ++__inline__ int ++gr_acl_is_enabled(void) ++{ ++ return (gr_status & GR_READY); ++} ++ ++#ifdef CONFIG_BTRFS_FS ++extern dev_t get_btrfs_dev_from_inode(struct inode *inode); ++extern int btrfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat); ++#endif ++ ++static inline dev_t __get_dev(const struct dentry *dentry) ++{ ++#ifdef CONFIG_BTRFS_FS ++ if (dentry->d_inode->i_op && dentry->d_inode->i_op->getattr == &btrfs_getattr) ++ return get_btrfs_dev_from_inode(dentry->d_inode); ++ else ++#endif ++ return dentry->d_inode->i_sb->s_dev; ++} ++ ++dev_t gr_get_dev_from_dentry(struct dentry *dentry) ++{ ++ return __get_dev(dentry); ++} ++ ++static char gr_task_roletype_to_char(struct task_struct *task) ++{ ++ switch (task->role->roletype & ++ (GR_ROLE_DEFAULT | GR_ROLE_USER | GR_ROLE_GROUP | ++ GR_ROLE_SPECIAL)) { ++ case GR_ROLE_DEFAULT: ++ return 'D'; ++ case GR_ROLE_USER: ++ return 'U'; ++ case GR_ROLE_GROUP: ++ return 'G'; ++ case GR_ROLE_SPECIAL: ++ return 'S'; ++ } ++ ++ return 'X'; ++} ++ ++char gr_roletype_to_char(void) ++{ ++ return gr_task_roletype_to_char(current); ++} ++ ++__inline__ int ++gr_acl_tpe_check(void) ++{ ++ if (unlikely(!(gr_status & GR_READY))) ++ return 0; ++ if (current->role->roletype & GR_ROLE_TPE) ++ return 1; ++ else ++ return 0; ++} ++ ++int ++gr_handle_rawio(const struct inode *inode) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS ++ if (inode && S_ISBLK(inode->i_mode) && ++ grsec_enable_chroot_caps && proc_is_chrooted(current) && ++ !capable(CAP_SYS_RAWIO)) ++ return 1; ++#endif ++ return 0; ++} ++ ++static int ++gr_streq(const char *a, const char *b, const unsigned int lena, const unsigned int lenb) ++{ ++ if (likely(lena != lenb)) ++ return 0; ++ ++ return !memcmp(a, b, lena); ++} ++ ++static int prepend(char **buffer, int *buflen, const char *str, int namelen) ++{ ++ *buflen -= namelen; ++ if (*buflen < 0) ++ return -ENAMETOOLONG; ++ *buffer -= namelen; ++ memcpy(*buffer, str, namelen); ++ return 0; ++} ++ ++static int prepend_name(char **buffer, int *buflen, struct qstr *name) ++{ ++ return prepend(buffer, buflen, name->name, name->len); ++} ++ ++static int prepend_path(const struct path *path, struct path *root, ++ char **buffer, int *buflen) ++{ ++ struct dentry *dentry = path->dentry; ++ struct vfsmount *vfsmnt = path->mnt; ++ struct mount *mnt = real_mount(vfsmnt); ++ bool slash = false; ++ int error = 0; ++ ++ while (dentry != root->dentry || vfsmnt != root->mnt) { ++ struct dentry * parent; ++ ++ if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) { ++ /* Global root? */ ++ if (!mnt_has_parent(mnt)) { ++ goto out; ++ } ++ dentry = mnt->mnt_mountpoint; ++ mnt = mnt->mnt_parent; ++ vfsmnt = &mnt->mnt; ++ continue; ++ } ++ parent = dentry->d_parent; ++ prefetch(parent); ++ spin_lock(&dentry->d_lock); ++ error = prepend_name(buffer, buflen, &dentry->d_name); ++ spin_unlock(&dentry->d_lock); ++ if (!error) ++ error = prepend(buffer, buflen, "/", 1); ++ if (error) ++ break; ++ ++ slash = true; ++ dentry = parent; ++ } ++ ++out: ++ if (!error && !slash) ++ error = prepend(buffer, buflen, "/", 1); ++ ++ return error; ++} ++ ++/* this must be called with vfsmount_lock and rename_lock held */ ++ ++static char *__our_d_path(const struct path *path, struct path *root, ++ char *buf, int buflen) ++{ ++ char *res = buf + buflen; ++ int error; ++ ++ prepend(&res, &buflen, "\0", 1); ++ error = prepend_path(path, root, &res, &buflen); ++ if (error) ++ return ERR_PTR(error); ++ ++ return res; ++} ++ ++static char * ++gen_full_path(struct path *path, struct path *root, char *buf, int buflen) ++{ ++ char *retval; ++ ++ retval = __our_d_path(path, root, buf, buflen); ++ if (unlikely(IS_ERR(retval))) ++ retval = strcpy(buf, "<path too long>"); ++ else if (unlikely(retval[1] == '/' && retval[2] == '\0')) ++ retval[1] = '\0'; ++ ++ return retval; ++} ++ ++static char * ++__d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt, ++ char *buf, int buflen) ++{ ++ struct path path; ++ char *res; ++ ++ path.dentry = (struct dentry *)dentry; ++ path.mnt = (struct vfsmount *)vfsmnt; ++ ++ /* we can use real_root.dentry, real_root.mnt, because this is only called ++ by the RBAC system */ ++ res = gen_full_path(&path, &real_root, buf, buflen); ++ ++ return res; ++} ++ ++static char * ++d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt, ++ char *buf, int buflen) ++{ ++ char *res; ++ struct path path; ++ struct path root; ++ struct task_struct *reaper = init_pid_ns.child_reaper; ++ ++ path.dentry = (struct dentry *)dentry; ++ path.mnt = (struct vfsmount *)vfsmnt; ++ ++ /* we can't use real_root.dentry, real_root.mnt, because they belong only to the RBAC system */ ++ get_fs_root(reaper->fs, &root); ++ ++ write_seqlock(&rename_lock); ++ br_read_lock(vfsmount_lock); ++ res = gen_full_path(&path, &root, buf, buflen); ++ br_read_unlock(vfsmount_lock); ++ write_sequnlock(&rename_lock); ++ ++ path_put(&root); ++ return res; ++} ++ ++static char * ++gr_to_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++ char *ret; ++ write_seqlock(&rename_lock); ++ br_read_lock(vfsmount_lock); ++ ret = __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()), ++ PAGE_SIZE); ++ br_read_unlock(vfsmount_lock); ++ write_sequnlock(&rename_lock); ++ return ret; ++} ++ ++static char * ++gr_to_proc_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++ char *ret; ++ char *buf; ++ int buflen; ++ ++ write_seqlock(&rename_lock); ++ br_read_lock(vfsmount_lock); ++ buf = per_cpu_ptr(gr_shared_page[0], smp_processor_id()); ++ ret = __d_real_path(dentry, mnt, buf, PAGE_SIZE - 6); ++ buflen = (int)(ret - buf); ++ if (buflen >= 5) ++ prepend(&ret, &buflen, "/proc", 5); ++ else ++ ret = strcpy(buf, "<path too long>"); ++ br_read_unlock(vfsmount_lock); ++ write_sequnlock(&rename_lock); ++ return ret; ++} ++ ++char * ++gr_to_filename_nolock(const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++ return __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()), ++ PAGE_SIZE); ++} ++ ++char * ++gr_to_filename(const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()), ++ PAGE_SIZE); ++} ++ ++char * ++gr_to_filename1(const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[1], smp_processor_id()), ++ PAGE_SIZE); ++} ++ ++char * ++gr_to_filename2(const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[2], smp_processor_id()), ++ PAGE_SIZE); ++} ++ ++char * ++gr_to_filename3(const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[3], smp_processor_id()), ++ PAGE_SIZE); ++} ++ ++__inline__ __u32 ++to_gr_audit(const __u32 reqmode) ++{ ++ /* masks off auditable permission flags, then shifts them to create ++ auditing flags, and adds the special case of append auditing if ++ we're requesting write */ ++ return (((reqmode & ~GR_AUDITS) << 10) | ((reqmode & GR_WRITE) ? GR_AUDIT_APPEND : 0)); ++} ++ ++struct acl_subject_label * ++lookup_subject_map(const struct acl_subject_label *userp) ++{ ++ unsigned int index = shash(userp, subj_map_set.s_size); ++ struct subject_map *match; ++ ++ match = subj_map_set.s_hash[index]; ++ ++ while (match && match->user != userp) ++ match = match->next; ++ ++ if (match != NULL) ++ return match->kernel; ++ else ++ return NULL; ++} ++ ++static void ++insert_subj_map_entry(struct subject_map *subjmap) ++{ ++ unsigned int index = shash(subjmap->user, subj_map_set.s_size); ++ struct subject_map **curr; ++ ++ subjmap->prev = NULL; ++ ++ curr = &subj_map_set.s_hash[index]; ++ if (*curr != NULL) ++ (*curr)->prev = subjmap; ++ ++ subjmap->next = *curr; ++ *curr = subjmap; ++ ++ return; ++} ++ ++static struct acl_role_label * ++lookup_acl_role_label(const struct task_struct *task, const uid_t uid, ++ const gid_t gid) ++{ ++ unsigned int index = rhash(uid, GR_ROLE_USER, acl_role_set.r_size); ++ struct acl_role_label *match; ++ struct role_allowed_ip *ipp; ++ unsigned int x; ++ u32 curr_ip = task->signal->curr_ip; ++ ++ task->signal->saved_ip = curr_ip; ++ ++ match = acl_role_set.r_hash[index]; ++ ++ while (match) { ++ if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_USER)) == (GR_ROLE_DOMAIN | GR_ROLE_USER)) { ++ for (x = 0; x < match->domain_child_num; x++) { ++ if (match->domain_children[x] == uid) ++ goto found; ++ } ++ } else if (match->uidgid == uid && match->roletype & GR_ROLE_USER) ++ break; ++ match = match->next; ++ } ++found: ++ if (match == NULL) { ++ try_group: ++ index = rhash(gid, GR_ROLE_GROUP, acl_role_set.r_size); ++ match = acl_role_set.r_hash[index]; ++ ++ while (match) { ++ if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) == (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) { ++ for (x = 0; x < match->domain_child_num; x++) { ++ if (match->domain_children[x] == gid) ++ goto found2; ++ } ++ } else if (match->uidgid == gid && match->roletype & GR_ROLE_GROUP) ++ break; ++ match = match->next; ++ } ++found2: ++ if (match == NULL) ++ match = default_role; ++ if (match->allowed_ips == NULL) ++ return match; ++ else { ++ for (ipp = match->allowed_ips; ipp; ipp = ipp->next) { ++ if (likely ++ ((ntohl(curr_ip) & ipp->netmask) == ++ (ntohl(ipp->addr) & ipp->netmask))) ++ return match; ++ } ++ match = default_role; ++ } ++ } else if (match->allowed_ips == NULL) { ++ return match; ++ } else { ++ for (ipp = match->allowed_ips; ipp; ipp = ipp->next) { ++ if (likely ++ ((ntohl(curr_ip) & ipp->netmask) == ++ (ntohl(ipp->addr) & ipp->netmask))) ++ return match; ++ } ++ goto try_group; ++ } ++ ++ return match; ++} ++ ++struct acl_subject_label * ++lookup_acl_subj_label(const ino_t ino, const dev_t dev, ++ const struct acl_role_label *role) ++{ ++ unsigned int index = fhash(ino, dev, role->subj_hash_size); ++ struct acl_subject_label *match; ++ ++ match = role->subj_hash[index]; ++ ++ while (match && (match->inode != ino || match->device != dev || ++ (match->mode & GR_DELETED))) { ++ match = match->next; ++ } ++ ++ if (match && !(match->mode & GR_DELETED)) ++ return match; ++ else ++ return NULL; ++} ++ ++struct acl_subject_label * ++lookup_acl_subj_label_deleted(const ino_t ino, const dev_t dev, ++ const struct acl_role_label *role) ++{ ++ unsigned int index = fhash(ino, dev, role->subj_hash_size); ++ struct acl_subject_label *match; ++ ++ match = role->subj_hash[index]; ++ ++ while (match && (match->inode != ino || match->device != dev || ++ !(match->mode & GR_DELETED))) { ++ match = match->next; ++ } ++ ++ if (match && (match->mode & GR_DELETED)) ++ return match; ++ else ++ return NULL; ++} ++ ++static struct acl_object_label * ++lookup_acl_obj_label(const ino_t ino, const dev_t dev, ++ const struct acl_subject_label *subj) ++{ ++ unsigned int index = fhash(ino, dev, subj->obj_hash_size); ++ struct acl_object_label *match; ++ ++ match = subj->obj_hash[index]; ++ ++ while (match && (match->inode != ino || match->device != dev || ++ (match->mode & GR_DELETED))) { ++ match = match->next; ++ } ++ ++ if (match && !(match->mode & GR_DELETED)) ++ return match; ++ else ++ return NULL; ++} ++ ++static struct acl_object_label * ++lookup_acl_obj_label_create(const ino_t ino, const dev_t dev, ++ const struct acl_subject_label *subj) ++{ ++ unsigned int index = fhash(ino, dev, subj->obj_hash_size); ++ struct acl_object_label *match; ++ ++ match = subj->obj_hash[index]; ++ ++ while (match && (match->inode != ino || match->device != dev || ++ !(match->mode & GR_DELETED))) { ++ match = match->next; ++ } ++ ++ if (match && (match->mode & GR_DELETED)) ++ return match; ++ ++ match = subj->obj_hash[index]; ++ ++ while (match && (match->inode != ino || match->device != dev || ++ (match->mode & GR_DELETED))) { ++ match = match->next; ++ } ++ ++ if (match && !(match->mode & GR_DELETED)) ++ return match; ++ else ++ return NULL; ++} ++ ++static struct name_entry * ++lookup_name_entry(const char *name) ++{ ++ unsigned int len = strlen(name); ++ unsigned int key = full_name_hash(name, len); ++ unsigned int index = key % name_set.n_size; ++ struct name_entry *match; ++ ++ match = name_set.n_hash[index]; ++ ++ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len))) ++ match = match->next; ++ ++ return match; ++} ++ ++static struct name_entry * ++lookup_name_entry_create(const char *name) ++{ ++ unsigned int len = strlen(name); ++ unsigned int key = full_name_hash(name, len); ++ unsigned int index = key % name_set.n_size; ++ struct name_entry *match; ++ ++ match = name_set.n_hash[index]; ++ ++ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) || ++ !match->deleted)) ++ match = match->next; ++ ++ if (match && match->deleted) ++ return match; ++ ++ match = name_set.n_hash[index]; ++ ++ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) || ++ match->deleted)) ++ match = match->next; ++ ++ if (match && !match->deleted) ++ return match; ++ else ++ return NULL; ++} ++ ++static struct inodev_entry * ++lookup_inodev_entry(const ino_t ino, const dev_t dev) ++{ ++ unsigned int index = fhash(ino, dev, inodev_set.i_size); ++ struct inodev_entry *match; ++ ++ match = inodev_set.i_hash[index]; ++ ++ while (match && (match->nentry->inode != ino || match->nentry->device != dev)) ++ match = match->next; ++ ++ return match; ++} ++ ++static void ++insert_inodev_entry(struct inodev_entry *entry) ++{ ++ unsigned int index = fhash(entry->nentry->inode, entry->nentry->device, ++ inodev_set.i_size); ++ struct inodev_entry **curr; ++ ++ entry->prev = NULL; ++ ++ curr = &inodev_set.i_hash[index]; ++ if (*curr != NULL) ++ (*curr)->prev = entry; ++ ++ entry->next = *curr; ++ *curr = entry; ++ ++ return; ++} ++ ++static void ++__insert_acl_role_label(struct acl_role_label *role, uid_t uidgid) ++{ ++ unsigned int index = ++ rhash(uidgid, role->roletype & (GR_ROLE_USER | GR_ROLE_GROUP), acl_role_set.r_size); ++ struct acl_role_label **curr; ++ struct acl_role_label *tmp, *tmp2; ++ ++ curr = &acl_role_set.r_hash[index]; ++ ++ /* simple case, slot is empty, just set it to our role */ ++ if (*curr == NULL) { ++ *curr = role; ++ } else { ++ /* example: ++ 1 -> 2 -> 3 (adding 2 -> 3 to here) ++ 2 -> 3 ++ */ ++ /* first check to see if we can already be reached via this slot */ ++ tmp = *curr; ++ while (tmp && tmp != role) ++ tmp = tmp->next; ++ if (tmp == role) { ++ /* we don't need to add ourselves to this slot's chain */ ++ return; ++ } ++ /* we need to add ourselves to this chain, two cases */ ++ if (role->next == NULL) { ++ /* simple case, append the current chain to our role */ ++ role->next = *curr; ++ *curr = role; ++ } else { ++ /* 1 -> 2 -> 3 -> 4 ++ 2 -> 3 -> 4 ++ 3 -> 4 (adding 1 -> 2 -> 3 -> 4 to here) ++ */ ++ /* trickier case: walk our role's chain until we find ++ the role for the start of the current slot's chain */ ++ tmp = role; ++ tmp2 = *curr; ++ while (tmp->next && tmp->next != tmp2) ++ tmp = tmp->next; ++ if (tmp->next == tmp2) { ++ /* from example above, we found 3, so just ++ replace this slot's chain with ours */ ++ *curr = role; ++ } else { ++ /* we didn't find a subset of our role's chain ++ in the current slot's chain, so append their ++ chain to ours, and set us as the first role in ++ the slot's chain ++ ++ we could fold this case with the case above, ++ but making it explicit for clarity ++ */ ++ tmp->next = tmp2; ++ *curr = role; ++ } ++ } ++ } ++ ++ return; ++} ++ ++static void ++insert_acl_role_label(struct acl_role_label *role) ++{ ++ int i; ++ ++ if (role_list == NULL) { ++ role_list = role; ++ role->prev = NULL; ++ } else { ++ role->prev = role_list; ++ role_list = role; ++ } ++ ++ /* used for hash chains */ ++ role->next = NULL; ++ ++ if (role->roletype & GR_ROLE_DOMAIN) { ++ for (i = 0; i < role->domain_child_num; i++) ++ __insert_acl_role_label(role, role->domain_children[i]); ++ } else ++ __insert_acl_role_label(role, role->uidgid); ++} ++ ++static int ++insert_name_entry(char *name, const ino_t inode, const dev_t device, __u8 deleted) ++{ ++ struct name_entry **curr, *nentry; ++ struct inodev_entry *ientry; ++ unsigned int len = strlen(name); ++ unsigned int key = full_name_hash(name, len); ++ unsigned int index = key % name_set.n_size; ++ ++ curr = &name_set.n_hash[index]; ++ ++ while (*curr && ((*curr)->key != key || !gr_streq((*curr)->name, name, (*curr)->len, len))) ++ curr = &((*curr)->next); ++ ++ if (*curr != NULL) ++ return 1; ++ ++ nentry = acl_alloc(sizeof (struct name_entry)); ++ if (nentry == NULL) ++ return 0; ++ ientry = acl_alloc(sizeof (struct inodev_entry)); ++ if (ientry == NULL) ++ return 0; ++ ientry->nentry = nentry; ++ ++ nentry->key = key; ++ nentry->name = name; ++ nentry->inode = inode; ++ nentry->device = device; ++ nentry->len = len; ++ nentry->deleted = deleted; ++ ++ nentry->prev = NULL; ++ curr = &name_set.n_hash[index]; ++ if (*curr != NULL) ++ (*curr)->prev = nentry; ++ nentry->next = *curr; ++ *curr = nentry; ++ ++ /* insert us into the table searchable by inode/dev */ ++ insert_inodev_entry(ientry); ++ ++ return 1; ++} ++ ++static void ++insert_acl_obj_label(struct acl_object_label *obj, ++ struct acl_subject_label *subj) ++{ ++ unsigned int index = ++ fhash(obj->inode, obj->device, subj->obj_hash_size); ++ struct acl_object_label **curr; ++ ++ ++ obj->prev = NULL; ++ ++ curr = &subj->obj_hash[index]; ++ if (*curr != NULL) ++ (*curr)->prev = obj; ++ ++ obj->next = *curr; ++ *curr = obj; ++ ++ return; ++} ++ ++static void ++insert_acl_subj_label(struct acl_subject_label *obj, ++ struct acl_role_label *role) ++{ ++ unsigned int index = fhash(obj->inode, obj->device, role->subj_hash_size); ++ struct acl_subject_label **curr; ++ ++ obj->prev = NULL; ++ ++ curr = &role->subj_hash[index]; ++ if (*curr != NULL) ++ (*curr)->prev = obj; ++ ++ obj->next = *curr; ++ *curr = obj; ++ ++ return; ++} ++ ++/* allocating chained hash tables, so optimal size is where lambda ~ 1 */ ++ ++static void * ++create_table(__u32 * len, int elementsize) ++{ ++ unsigned int table_sizes[] = { ++ 7, 13, 31, 61, 127, 251, 509, 1021, 2039, 4093, 8191, 16381, ++ 32749, 65521, 131071, 262139, 524287, 1048573, 2097143, ++ 4194301, 8388593, 16777213, 33554393, 67108859 ++ }; ++ void *newtable = NULL; ++ unsigned int pwr = 0; ++ ++ while ((pwr < ((sizeof (table_sizes) / sizeof (table_sizes[0])) - 1)) && ++ table_sizes[pwr] <= *len) ++ pwr++; ++ ++ if (table_sizes[pwr] <= *len || (table_sizes[pwr] > ULONG_MAX / elementsize)) ++ return newtable; ++ ++ if ((table_sizes[pwr] * elementsize) <= PAGE_SIZE) ++ newtable = ++ kmalloc(table_sizes[pwr] * elementsize, GFP_KERNEL); ++ else ++ newtable = vmalloc(table_sizes[pwr] * elementsize); ++ ++ *len = table_sizes[pwr]; ++ ++ return newtable; ++} ++ ++static int ++init_variables(const struct gr_arg *arg) ++{ ++ struct task_struct *reaper = init_pid_ns.child_reaper; ++ unsigned int stacksize; ++ ++ subj_map_set.s_size = arg->role_db.num_subjects; ++ acl_role_set.r_size = arg->role_db.num_roles + arg->role_db.num_domain_children; ++ name_set.n_size = arg->role_db.num_objects; ++ inodev_set.i_size = arg->role_db.num_objects; ++ ++ if (!subj_map_set.s_size || !acl_role_set.r_size || ++ !name_set.n_size || !inodev_set.i_size) ++ return 1; ++ ++ if (!gr_init_uidset()) ++ return 1; ++ ++ /* set up the stack that holds allocation info */ ++ ++ stacksize = arg->role_db.num_pointers + 5; ++ ++ if (!acl_alloc_stack_init(stacksize)) ++ return 1; ++ ++ /* grab reference for the real root dentry and vfsmount */ ++ get_fs_root(reaper->fs, &real_root); ++ ++#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG ++ printk(KERN_ALERT "Obtained real root device=%d, inode=%lu\n", __get_dev(real_root.dentry), real_root.dentry->d_inode->i_ino); ++#endif ++ ++ fakefs_obj_rw = acl_alloc(sizeof(struct acl_object_label)); ++ if (fakefs_obj_rw == NULL) ++ return 1; ++ fakefs_obj_rw->mode = GR_FIND | GR_READ | GR_WRITE; ++ ++ fakefs_obj_rwx = acl_alloc(sizeof(struct acl_object_label)); ++ if (fakefs_obj_rwx == NULL) ++ return 1; ++ fakefs_obj_rwx->mode = GR_FIND | GR_READ | GR_WRITE | GR_EXEC; ++ ++ subj_map_set.s_hash = ++ (struct subject_map **) create_table(&subj_map_set.s_size, sizeof(void *)); ++ acl_role_set.r_hash = ++ (struct acl_role_label **) create_table(&acl_role_set.r_size, sizeof(void *)); ++ name_set.n_hash = (struct name_entry **) create_table(&name_set.n_size, sizeof(void *)); ++ inodev_set.i_hash = ++ (struct inodev_entry **) create_table(&inodev_set.i_size, sizeof(void *)); ++ ++ if (!subj_map_set.s_hash || !acl_role_set.r_hash || ++ !name_set.n_hash || !inodev_set.i_hash) ++ return 1; ++ ++ memset(subj_map_set.s_hash, 0, ++ sizeof(struct subject_map *) * subj_map_set.s_size); ++ memset(acl_role_set.r_hash, 0, ++ sizeof (struct acl_role_label *) * acl_role_set.r_size); ++ memset(name_set.n_hash, 0, ++ sizeof (struct name_entry *) * name_set.n_size); ++ memset(inodev_set.i_hash, 0, ++ sizeof (struct inodev_entry *) * inodev_set.i_size); ++ ++ return 0; ++} ++ ++/* free information not needed after startup ++ currently contains user->kernel pointer mappings for subjects ++*/ ++ ++static void ++free_init_variables(void) ++{ ++ __u32 i; ++ ++ if (subj_map_set.s_hash) { ++ for (i = 0; i < subj_map_set.s_size; i++) { ++ if (subj_map_set.s_hash[i]) { ++ kfree(subj_map_set.s_hash[i]); ++ subj_map_set.s_hash[i] = NULL; ++ } ++ } ++ ++ if ((subj_map_set.s_size * sizeof (struct subject_map *)) <= ++ PAGE_SIZE) ++ kfree(subj_map_set.s_hash); ++ else ++ vfree(subj_map_set.s_hash); ++ } ++ ++ return; ++} ++ ++static void ++free_variables(void) ++{ ++ struct acl_subject_label *s; ++ struct acl_role_label *r; ++ struct task_struct *task, *task2; ++ unsigned int x; ++ ++ gr_clear_learn_entries(); ++ ++ read_lock(&tasklist_lock); ++ do_each_thread(task2, task) { ++ task->acl_sp_role = 0; ++ task->acl_role_id = 0; ++ task->acl = NULL; ++ task->role = NULL; ++ } while_each_thread(task2, task); ++ read_unlock(&tasklist_lock); ++ ++ /* release the reference to the real root dentry and vfsmount */ ++ path_put(&real_root); ++ memset(&real_root, 0, sizeof(real_root)); ++ ++ /* free all object hash tables */ ++ ++ FOR_EACH_ROLE_START(r) ++ if (r->subj_hash == NULL) ++ goto next_role; ++ FOR_EACH_SUBJECT_START(r, s, x) ++ if (s->obj_hash == NULL) ++ break; ++ if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE) ++ kfree(s->obj_hash); ++ else ++ vfree(s->obj_hash); ++ FOR_EACH_SUBJECT_END(s, x) ++ FOR_EACH_NESTED_SUBJECT_START(r, s) ++ if (s->obj_hash == NULL) ++ break; ++ if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE) ++ kfree(s->obj_hash); ++ else ++ vfree(s->obj_hash); ++ FOR_EACH_NESTED_SUBJECT_END(s) ++ if ((r->subj_hash_size * sizeof (struct acl_subject_label *)) <= PAGE_SIZE) ++ kfree(r->subj_hash); ++ else ++ vfree(r->subj_hash); ++ r->subj_hash = NULL; ++next_role: ++ FOR_EACH_ROLE_END(r) ++ ++ acl_free_all(); ++ ++ if (acl_role_set.r_hash) { ++ if ((acl_role_set.r_size * sizeof (struct acl_role_label *)) <= ++ PAGE_SIZE) ++ kfree(acl_role_set.r_hash); ++ else ++ vfree(acl_role_set.r_hash); ++ } ++ if (name_set.n_hash) { ++ if ((name_set.n_size * sizeof (struct name_entry *)) <= ++ PAGE_SIZE) ++ kfree(name_set.n_hash); ++ else ++ vfree(name_set.n_hash); ++ } ++ ++ if (inodev_set.i_hash) { ++ if ((inodev_set.i_size * sizeof (struct inodev_entry *)) <= ++ PAGE_SIZE) ++ kfree(inodev_set.i_hash); ++ else ++ vfree(inodev_set.i_hash); ++ } ++ ++ gr_free_uidset(); ++ ++ memset(&name_set, 0, sizeof (struct name_db)); ++ memset(&inodev_set, 0, sizeof (struct inodev_db)); ++ memset(&acl_role_set, 0, sizeof (struct acl_role_db)); ++ memset(&subj_map_set, 0, sizeof (struct acl_subj_map_db)); ++ ++ default_role = NULL; ++ kernel_role = NULL; ++ role_list = NULL; ++ ++ return; ++} ++ ++static __u32 ++count_user_objs(struct acl_object_label *userp) ++{ ++ struct acl_object_label o_tmp; ++ __u32 num = 0; ++ ++ while (userp) { ++ if (copy_from_user(&o_tmp, userp, ++ sizeof (struct acl_object_label))) ++ break; ++ ++ userp = o_tmp.prev; ++ num++; ++ } ++ ++ return num; ++} ++ ++static struct acl_subject_label * ++do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role); ++ ++static int ++copy_user_glob(struct acl_object_label *obj) ++{ ++ struct acl_object_label *g_tmp, **guser; ++ unsigned int len; ++ char *tmp; ++ ++ if (obj->globbed == NULL) ++ return 0; ++ ++ guser = &obj->globbed; ++ while (*guser) { ++ g_tmp = (struct acl_object_label *) ++ acl_alloc(sizeof (struct acl_object_label)); ++ if (g_tmp == NULL) ++ return -ENOMEM; ++ ++ if (copy_from_user(g_tmp, *guser, ++ sizeof (struct acl_object_label))) ++ return -EFAULT; ++ ++ len = strnlen_user(g_tmp->filename, PATH_MAX); ++ ++ if (!len || len >= PATH_MAX) ++ return -EINVAL; ++ ++ if ((tmp = (char *) acl_alloc(len)) == NULL) ++ return -ENOMEM; ++ ++ if (copy_from_user(tmp, g_tmp->filename, len)) ++ return -EFAULT; ++ tmp[len-1] = '\0'; ++ g_tmp->filename = tmp; ++ ++ *guser = g_tmp; ++ guser = &(g_tmp->next); ++ } ++ ++ return 0; ++} ++ ++static int ++copy_user_objs(struct acl_object_label *userp, struct acl_subject_label *subj, ++ struct acl_role_label *role) ++{ ++ struct acl_object_label *o_tmp; ++ unsigned int len; ++ int ret; ++ char *tmp; ++ ++ while (userp) { ++ if ((o_tmp = (struct acl_object_label *) ++ acl_alloc(sizeof (struct acl_object_label))) == NULL) ++ return -ENOMEM; ++ ++ if (copy_from_user(o_tmp, userp, ++ sizeof (struct acl_object_label))) ++ return -EFAULT; ++ ++ userp = o_tmp->prev; ++ ++ len = strnlen_user(o_tmp->filename, PATH_MAX); ++ ++ if (!len || len >= PATH_MAX) ++ return -EINVAL; ++ ++ if ((tmp = (char *) acl_alloc(len)) == NULL) ++ return -ENOMEM; ++ ++ if (copy_from_user(tmp, o_tmp->filename, len)) ++ return -EFAULT; ++ tmp[len-1] = '\0'; ++ o_tmp->filename = tmp; ++ ++ insert_acl_obj_label(o_tmp, subj); ++ if (!insert_name_entry(o_tmp->filename, o_tmp->inode, ++ o_tmp->device, (o_tmp->mode & GR_DELETED) ? 1 : 0)) ++ return -ENOMEM; ++ ++ ret = copy_user_glob(o_tmp); ++ if (ret) ++ return ret; ++ ++ if (o_tmp->nested) { ++ o_tmp->nested = do_copy_user_subj(o_tmp->nested, role); ++ if (IS_ERR(o_tmp->nested)) ++ return PTR_ERR(o_tmp->nested); ++ ++ /* insert into nested subject list */ ++ o_tmp->nested->next = role->hash->first; ++ role->hash->first = o_tmp->nested; ++ } ++ } ++ ++ return 0; ++} ++ ++static __u32 ++count_user_subjs(struct acl_subject_label *userp) ++{ ++ struct acl_subject_label s_tmp; ++ __u32 num = 0; ++ ++ while (userp) { ++ if (copy_from_user(&s_tmp, userp, ++ sizeof (struct acl_subject_label))) ++ break; ++ ++ userp = s_tmp.prev; ++ /* do not count nested subjects against this count, since ++ they are not included in the hash table, but are ++ attached to objects. We have already counted ++ the subjects in userspace for the allocation ++ stack ++ */ ++ if (!(s_tmp.mode & GR_NESTED)) ++ num++; ++ } ++ ++ return num; ++} ++ ++static int ++copy_user_allowedips(struct acl_role_label *rolep) ++{ ++ struct role_allowed_ip *ruserip, *rtmp = NULL, *rlast; ++ ++ ruserip = rolep->allowed_ips; ++ ++ while (ruserip) { ++ rlast = rtmp; ++ ++ if ((rtmp = (struct role_allowed_ip *) ++ acl_alloc(sizeof (struct role_allowed_ip))) == NULL) ++ return -ENOMEM; ++ ++ if (copy_from_user(rtmp, ruserip, ++ sizeof (struct role_allowed_ip))) ++ return -EFAULT; ++ ++ ruserip = rtmp->prev; ++ ++ if (!rlast) { ++ rtmp->prev = NULL; ++ rolep->allowed_ips = rtmp; ++ } else { ++ rlast->next = rtmp; ++ rtmp->prev = rlast; ++ } ++ ++ if (!ruserip) ++ rtmp->next = NULL; ++ } ++ ++ return 0; ++} ++ ++static int ++copy_user_transitions(struct acl_role_label *rolep) ++{ ++ struct role_transition *rusertp, *rtmp = NULL, *rlast; ++ ++ unsigned int len; ++ char *tmp; ++ ++ rusertp = rolep->transitions; ++ ++ while (rusertp) { ++ rlast = rtmp; ++ ++ if ((rtmp = (struct role_transition *) ++ acl_alloc(sizeof (struct role_transition))) == NULL) ++ return -ENOMEM; ++ ++ if (copy_from_user(rtmp, rusertp, ++ sizeof (struct role_transition))) ++ return -EFAULT; ++ ++ rusertp = rtmp->prev; ++ ++ len = strnlen_user(rtmp->rolename, GR_SPROLE_LEN); ++ ++ if (!len || len >= GR_SPROLE_LEN) ++ return -EINVAL; ++ ++ if ((tmp = (char *) acl_alloc(len)) == NULL) ++ return -ENOMEM; ++ ++ if (copy_from_user(tmp, rtmp->rolename, len)) ++ return -EFAULT; ++ tmp[len-1] = '\0'; ++ rtmp->rolename = tmp; ++ ++ if (!rlast) { ++ rtmp->prev = NULL; ++ rolep->transitions = rtmp; ++ } else { ++ rlast->next = rtmp; ++ rtmp->prev = rlast; ++ } ++ ++ if (!rusertp) ++ rtmp->next = NULL; ++ } ++ ++ return 0; ++} ++ ++static struct acl_subject_label * ++do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role) ++{ ++ struct acl_subject_label *s_tmp = NULL, *s_tmp2; ++ unsigned int len; ++ char *tmp; ++ __u32 num_objs; ++ struct acl_ip_label **i_tmp, *i_utmp2; ++ struct gr_hash_struct ghash; ++ struct subject_map *subjmap; ++ unsigned int i_num; ++ int err; ++ ++ s_tmp = lookup_subject_map(userp); ++ ++ /* we've already copied this subject into the kernel, just return ++ the reference to it, and don't copy it over again ++ */ ++ if (s_tmp) ++ return(s_tmp); ++ ++ if ((s_tmp = (struct acl_subject_label *) ++ acl_alloc(sizeof (struct acl_subject_label))) == NULL) ++ return ERR_PTR(-ENOMEM); ++ ++ subjmap = (struct subject_map *)kmalloc(sizeof (struct subject_map), GFP_KERNEL); ++ if (subjmap == NULL) ++ return ERR_PTR(-ENOMEM); ++ ++ subjmap->user = userp; ++ subjmap->kernel = s_tmp; ++ insert_subj_map_entry(subjmap); ++ ++ if (copy_from_user(s_tmp, userp, ++ sizeof (struct acl_subject_label))) ++ return ERR_PTR(-EFAULT); ++ ++ len = strnlen_user(s_tmp->filename, PATH_MAX); ++ ++ if (!len || len >= PATH_MAX) ++ return ERR_PTR(-EINVAL); ++ ++ if ((tmp = (char *) acl_alloc(len)) == NULL) ++ return ERR_PTR(-ENOMEM); ++ ++ if (copy_from_user(tmp, s_tmp->filename, len)) ++ return ERR_PTR(-EFAULT); ++ tmp[len-1] = '\0'; ++ s_tmp->filename = tmp; ++ ++ if (!strcmp(s_tmp->filename, "/")) ++ role->root_label = s_tmp; ++ ++ if (copy_from_user(&ghash, s_tmp->hash, sizeof(struct gr_hash_struct))) ++ return ERR_PTR(-EFAULT); ++ ++ /* copy user and group transition tables */ ++ ++ if (s_tmp->user_trans_num) { ++ uid_t *uidlist; ++ ++ uidlist = (uid_t *)acl_alloc_num(s_tmp->user_trans_num, sizeof(uid_t)); ++ if (uidlist == NULL) ++ return ERR_PTR(-ENOMEM); ++ if (copy_from_user(uidlist, s_tmp->user_transitions, s_tmp->user_trans_num * sizeof(uid_t))) ++ return ERR_PTR(-EFAULT); ++ ++ s_tmp->user_transitions = uidlist; ++ } ++ ++ if (s_tmp->group_trans_num) { ++ gid_t *gidlist; ++ ++ gidlist = (gid_t *)acl_alloc_num(s_tmp->group_trans_num, sizeof(gid_t)); ++ if (gidlist == NULL) ++ return ERR_PTR(-ENOMEM); ++ if (copy_from_user(gidlist, s_tmp->group_transitions, s_tmp->group_trans_num * sizeof(gid_t))) ++ return ERR_PTR(-EFAULT); ++ ++ s_tmp->group_transitions = gidlist; ++ } ++ ++ /* set up object hash table */ ++ num_objs = count_user_objs(ghash.first); ++ ++ s_tmp->obj_hash_size = num_objs; ++ s_tmp->obj_hash = ++ (struct acl_object_label **) ++ create_table(&(s_tmp->obj_hash_size), sizeof(void *)); ++ ++ if (!s_tmp->obj_hash) ++ return ERR_PTR(-ENOMEM); ++ ++ memset(s_tmp->obj_hash, 0, ++ s_tmp->obj_hash_size * ++ sizeof (struct acl_object_label *)); ++ ++ /* add in objects */ ++ err = copy_user_objs(ghash.first, s_tmp, role); ++ ++ if (err) ++ return ERR_PTR(err); ++ ++ /* set pointer for parent subject */ ++ if (s_tmp->parent_subject) { ++ s_tmp2 = do_copy_user_subj(s_tmp->parent_subject, role); ++ ++ if (IS_ERR(s_tmp2)) ++ return s_tmp2; ++ ++ s_tmp->parent_subject = s_tmp2; ++ } ++ ++ /* add in ip acls */ ++ ++ if (!s_tmp->ip_num) { ++ s_tmp->ips = NULL; ++ goto insert; ++ } ++ ++ i_tmp = ++ (struct acl_ip_label **) acl_alloc_num(s_tmp->ip_num, ++ sizeof (struct acl_ip_label *)); ++ ++ if (!i_tmp) ++ return ERR_PTR(-ENOMEM); ++ ++ for (i_num = 0; i_num < s_tmp->ip_num; i_num++) { ++ *(i_tmp + i_num) = ++ (struct acl_ip_label *) ++ acl_alloc(sizeof (struct acl_ip_label)); ++ if (!*(i_tmp + i_num)) ++ return ERR_PTR(-ENOMEM); ++ ++ if (copy_from_user ++ (&i_utmp2, s_tmp->ips + i_num, ++ sizeof (struct acl_ip_label *))) ++ return ERR_PTR(-EFAULT); ++ ++ if (copy_from_user ++ (*(i_tmp + i_num), i_utmp2, ++ sizeof (struct acl_ip_label))) ++ return ERR_PTR(-EFAULT); ++ ++ if ((*(i_tmp + i_num))->iface == NULL) ++ continue; ++ ++ len = strnlen_user((*(i_tmp + i_num))->iface, IFNAMSIZ); ++ if (!len || len >= IFNAMSIZ) ++ return ERR_PTR(-EINVAL); ++ tmp = acl_alloc(len); ++ if (tmp == NULL) ++ return ERR_PTR(-ENOMEM); ++ if (copy_from_user(tmp, (*(i_tmp + i_num))->iface, len)) ++ return ERR_PTR(-EFAULT); ++ (*(i_tmp + i_num))->iface = tmp; ++ } ++ ++ s_tmp->ips = i_tmp; ++ ++insert: ++ if (!insert_name_entry(s_tmp->filename, s_tmp->inode, ++ s_tmp->device, (s_tmp->mode & GR_DELETED) ? 1 : 0)) ++ return ERR_PTR(-ENOMEM); ++ ++ return s_tmp; ++} ++ ++static int ++copy_user_subjs(struct acl_subject_label *userp, struct acl_role_label *role) ++{ ++ struct acl_subject_label s_pre; ++ struct acl_subject_label * ret; ++ int err; ++ ++ while (userp) { ++ if (copy_from_user(&s_pre, userp, ++ sizeof (struct acl_subject_label))) ++ return -EFAULT; ++ ++ /* do not add nested subjects here, add ++ while parsing objects ++ */ ++ ++ if (s_pre.mode & GR_NESTED) { ++ userp = s_pre.prev; ++ continue; ++ } ++ ++ ret = do_copy_user_subj(userp, role); ++ ++ err = PTR_ERR(ret); ++ if (IS_ERR(ret)) ++ return err; ++ ++ insert_acl_subj_label(ret, role); ++ ++ userp = s_pre.prev; ++ } ++ ++ return 0; ++} ++ ++static int ++copy_user_acl(struct gr_arg *arg) ++{ ++ struct acl_role_label *r_tmp = NULL, **r_utmp, *r_utmp2; ++ struct sprole_pw *sptmp; ++ struct gr_hash_struct *ghash; ++ uid_t *domainlist; ++ unsigned int r_num; ++ unsigned int len; ++ char *tmp; ++ int err = 0; ++ __u16 i; ++ __u32 num_subjs; ++ ++ /* we need a default and kernel role */ ++ if (arg->role_db.num_roles < 2) ++ return -EINVAL; ++ ++ /* copy special role authentication info from userspace */ ++ ++ num_sprole_pws = arg->num_sprole_pws; ++ acl_special_roles = (struct sprole_pw **) acl_alloc_num(num_sprole_pws, sizeof(struct sprole_pw *)); ++ ++ if (!acl_special_roles && num_sprole_pws) ++ return -ENOMEM; ++ ++ for (i = 0; i < num_sprole_pws; i++) { ++ sptmp = (struct sprole_pw *) acl_alloc(sizeof(struct sprole_pw)); ++ if (!sptmp) ++ return -ENOMEM; ++ if (copy_from_user(sptmp, arg->sprole_pws + i, ++ sizeof (struct sprole_pw))) ++ return -EFAULT; ++ ++ len = strnlen_user(sptmp->rolename, GR_SPROLE_LEN); ++ ++ if (!len || len >= GR_SPROLE_LEN) ++ return -EINVAL; ++ ++ if ((tmp = (char *) acl_alloc(len)) == NULL) ++ return -ENOMEM; ++ ++ if (copy_from_user(tmp, sptmp->rolename, len)) ++ return -EFAULT; ++ ++ tmp[len-1] = '\0'; ++#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG ++ printk(KERN_ALERT "Copying special role %s\n", tmp); ++#endif ++ sptmp->rolename = tmp; ++ acl_special_roles[i] = sptmp; ++ } ++ ++ r_utmp = (struct acl_role_label **) arg->role_db.r_table; ++ ++ for (r_num = 0; r_num < arg->role_db.num_roles; r_num++) { ++ r_tmp = acl_alloc(sizeof (struct acl_role_label)); ++ ++ if (!r_tmp) ++ return -ENOMEM; ++ ++ if (copy_from_user(&r_utmp2, r_utmp + r_num, ++ sizeof (struct acl_role_label *))) ++ return -EFAULT; ++ ++ if (copy_from_user(r_tmp, r_utmp2, ++ sizeof (struct acl_role_label))) ++ return -EFAULT; ++ ++ len = strnlen_user(r_tmp->rolename, GR_SPROLE_LEN); ++ ++ if (!len || len >= PATH_MAX) ++ return -EINVAL; ++ ++ if ((tmp = (char *) acl_alloc(len)) == NULL) ++ return -ENOMEM; ++ ++ if (copy_from_user(tmp, r_tmp->rolename, len)) ++ return -EFAULT; ++ ++ tmp[len-1] = '\0'; ++ r_tmp->rolename = tmp; ++ ++ if (!strcmp(r_tmp->rolename, "default") ++ && (r_tmp->roletype & GR_ROLE_DEFAULT)) { ++ default_role = r_tmp; ++ } else if (!strcmp(r_tmp->rolename, ":::kernel:::")) { ++ kernel_role = r_tmp; ++ } ++ ++ if ((ghash = (struct gr_hash_struct *) acl_alloc(sizeof(struct gr_hash_struct))) == NULL) ++ return -ENOMEM; ++ ++ if (copy_from_user(ghash, r_tmp->hash, sizeof(struct gr_hash_struct))) ++ return -EFAULT; ++ ++ r_tmp->hash = ghash; ++ ++ num_subjs = count_user_subjs(r_tmp->hash->first); ++ ++ r_tmp->subj_hash_size = num_subjs; ++ r_tmp->subj_hash = ++ (struct acl_subject_label **) ++ create_table(&(r_tmp->subj_hash_size), sizeof(void *)); ++ ++ if (!r_tmp->subj_hash) ++ return -ENOMEM; ++ ++ err = copy_user_allowedips(r_tmp); ++ if (err) ++ return err; ++ ++ /* copy domain info */ ++ if (r_tmp->domain_children != NULL) { ++ domainlist = acl_alloc_num(r_tmp->domain_child_num, sizeof(uid_t)); ++ if (domainlist == NULL) ++ return -ENOMEM; ++ ++ if (copy_from_user(domainlist, r_tmp->domain_children, r_tmp->domain_child_num * sizeof(uid_t))) ++ return -EFAULT; ++ ++ r_tmp->domain_children = domainlist; ++ } ++ ++ err = copy_user_transitions(r_tmp); ++ if (err) ++ return err; ++ ++ memset(r_tmp->subj_hash, 0, ++ r_tmp->subj_hash_size * ++ sizeof (struct acl_subject_label *)); ++ ++ err = copy_user_subjs(r_tmp->hash->first, r_tmp); ++ ++ if (err) ++ return err; ++ ++ /* set nested subject list to null */ ++ r_tmp->hash->first = NULL; ++ ++ insert_acl_role_label(r_tmp); ++ } ++ ++ if (default_role == NULL || kernel_role == NULL) ++ return -EINVAL; ++ ++ return err; ++} ++ ++static int ++gracl_init(struct gr_arg *args) ++{ ++ int error = 0; ++ ++ memcpy(gr_system_salt, args->salt, GR_SALT_LEN); ++ memcpy(gr_system_sum, args->sum, GR_SHA_LEN); ++ ++ if (init_variables(args)) { ++ gr_log_str(GR_DONT_AUDIT_GOOD, GR_INITF_ACL_MSG, GR_VERSION); ++ error = -ENOMEM; ++ free_variables(); ++ goto out; ++ } ++ ++ error = copy_user_acl(args); ++ free_init_variables(); ++ if (error) { ++ free_variables(); ++ goto out; ++ } ++ ++ if ((error = gr_set_acls(0))) { ++ free_variables(); ++ goto out; ++ } ++ ++ pax_open_kernel(); ++ gr_status |= GR_READY; ++ pax_close_kernel(); ++ ++ out: ++ return error; ++} ++ ++/* derived from glibc fnmatch() 0: match, 1: no match*/ ++ ++static int ++glob_match(const char *p, const char *n) ++{ ++ char c; ++ ++ while ((c = *p++) != '\0') { ++ switch (c) { ++ case '?': ++ if (*n == '\0') ++ return 1; ++ else if (*n == '/') ++ return 1; ++ break; ++ case '\\': ++ if (*n != c) ++ return 1; ++ break; ++ case '*': ++ for (c = *p++; c == '?' || c == '*'; c = *p++) { ++ if (*n == '/') ++ return 1; ++ else if (c == '?') { ++ if (*n == '\0') ++ return 1; ++ else ++ ++n; ++ } ++ } ++ if (c == '\0') { ++ return 0; ++ } else { ++ const char *endp; ++ ++ if ((endp = strchr(n, '/')) == NULL) ++ endp = n + strlen(n); ++ ++ if (c == '[') { ++ for (--p; n < endp; ++n) ++ if (!glob_match(p, n)) ++ return 0; ++ } else if (c == '/') { ++ while (*n != '\0' && *n != '/') ++ ++n; ++ if (*n == '/' && !glob_match(p, n + 1)) ++ return 0; ++ } else { ++ for (--p; n < endp; ++n) ++ if (*n == c && !glob_match(p, n)) ++ return 0; ++ } ++ ++ return 1; ++ } ++ case '[': ++ { ++ int not; ++ char cold; ++ ++ if (*n == '\0' || *n == '/') ++ return 1; ++ ++ not = (*p == '!' || *p == '^'); ++ if (not) ++ ++p; ++ ++ c = *p++; ++ for (;;) { ++ unsigned char fn = (unsigned char)*n; ++ ++ if (c == '\0') ++ return 1; ++ else { ++ if (c == fn) ++ goto matched; ++ cold = c; ++ c = *p++; ++ ++ if (c == '-' && *p != ']') { ++ unsigned char cend = *p++; ++ ++ if (cend == '\0') ++ return 1; ++ ++ if (cold <= fn && fn <= cend) ++ goto matched; ++ ++ c = *p++; ++ } ++ } ++ ++ if (c == ']') ++ break; ++ } ++ if (!not) ++ return 1; ++ break; ++ matched: ++ while (c != ']') { ++ if (c == '\0') ++ return 1; ++ ++ c = *p++; ++ } ++ if (not) ++ return 1; ++ } ++ break; ++ default: ++ if (c != *n) ++ return 1; ++ } ++ ++ ++n; ++ } ++ ++ if (*n == '\0') ++ return 0; ++ ++ if (*n == '/') ++ return 0; ++ ++ return 1; ++} ++ ++static struct acl_object_label * ++chk_glob_label(struct acl_object_label *globbed, ++ const struct dentry *dentry, const struct vfsmount *mnt, char **path) ++{ ++ struct acl_object_label *tmp; ++ ++ if (*path == NULL) ++ *path = gr_to_filename_nolock(dentry, mnt); ++ ++ tmp = globbed; ++ ++ while (tmp) { ++ if (!glob_match(tmp->filename, *path)) ++ return tmp; ++ tmp = tmp->next; ++ } ++ ++ return NULL; ++} ++ ++static struct acl_object_label * ++__full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt, ++ const ino_t curr_ino, const dev_t curr_dev, ++ const struct acl_subject_label *subj, char **path, const int checkglob) ++{ ++ struct acl_subject_label *tmpsubj; ++ struct acl_object_label *retval; ++ struct acl_object_label *retval2; ++ ++ tmpsubj = (struct acl_subject_label *) subj; ++ read_lock(&gr_inode_lock); ++ do { ++ retval = lookup_acl_obj_label(curr_ino, curr_dev, tmpsubj); ++ if (retval) { ++ if (checkglob && retval->globbed) { ++ retval2 = chk_glob_label(retval->globbed, orig_dentry, orig_mnt, path); ++ if (retval2) ++ retval = retval2; ++ } ++ break; ++ } ++ } while ((tmpsubj = tmpsubj->parent_subject)); ++ read_unlock(&gr_inode_lock); ++ ++ return retval; ++} ++ ++static __inline__ struct acl_object_label * ++full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt, ++ struct dentry *curr_dentry, ++ const struct acl_subject_label *subj, char **path, const int checkglob) ++{ ++ int newglob = checkglob; ++ ino_t inode; ++ dev_t device; ++ ++ /* if we aren't checking a subdirectory of the original path yet, don't do glob checking ++ as we don't want a / * rule to match instead of the / object ++ don't do this for create lookups that call this function though, since they're looking up ++ on the parent and thus need globbing checks on all paths ++ */ ++ if (orig_dentry == curr_dentry && newglob != GR_CREATE_GLOB) ++ newglob = GR_NO_GLOB; ++ ++ spin_lock(&curr_dentry->d_lock); ++ inode = curr_dentry->d_inode->i_ino; ++ device = __get_dev(curr_dentry); ++ spin_unlock(&curr_dentry->d_lock); ++ ++ return __full_lookup(orig_dentry, orig_mnt, inode, device, subj, path, newglob); ++} ++ ++static struct acl_object_label * ++__chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt, ++ const struct acl_subject_label *subj, char *path, const int checkglob) ++{ ++ struct dentry *dentry = (struct dentry *) l_dentry; ++ struct vfsmount *mnt = (struct vfsmount *) l_mnt; ++ struct mount *real_mnt = real_mount(mnt); ++ struct acl_object_label *retval; ++ struct dentry *parent; ++ ++ write_seqlock(&rename_lock); ++ br_read_lock(vfsmount_lock); ++ ++ if (unlikely((mnt == shm_mnt && dentry->d_inode->i_nlink == 0) || mnt == pipe_mnt || ++#ifdef CONFIG_NET ++ mnt == sock_mnt || ++#endif ++#ifdef CONFIG_HUGETLBFS ++ (mnt == hugetlbfs_vfsmount && dentry->d_inode->i_nlink == 0) || ++#endif ++ /* ignore Eric Biederman */ ++ IS_PRIVATE(l_dentry->d_inode))) { ++ retval = (subj->mode & GR_SHMEXEC) ? fakefs_obj_rwx : fakefs_obj_rw; ++ goto out; ++ } ++ ++ for (;;) { ++ if (dentry == real_root.dentry && mnt == real_root.mnt) ++ break; ++ ++ if (dentry == mnt->mnt_root || IS_ROOT(dentry)) { ++ if (!mnt_has_parent(real_mnt)) ++ break; ++ ++ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob); ++ if (retval != NULL) ++ goto out; ++ ++ dentry = real_mnt->mnt_mountpoint; ++ real_mnt = real_mnt->mnt_parent; ++ mnt = &real_mnt->mnt; ++ continue; ++ } ++ ++ parent = dentry->d_parent; ++ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob); ++ if (retval != NULL) ++ goto out; ++ ++ dentry = parent; ++ } ++ ++ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob); ++ ++ /* real_root is pinned so we don't have to hold a reference */ ++ if (retval == NULL) ++ retval = full_lookup(l_dentry, l_mnt, real_root.dentry, subj, &path, checkglob); ++out: ++ br_read_unlock(vfsmount_lock); ++ write_sequnlock(&rename_lock); ++ ++ BUG_ON(retval == NULL); ++ ++ return retval; ++} ++ ++static __inline__ struct acl_object_label * ++chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt, ++ const struct acl_subject_label *subj) ++{ ++ char *path = NULL; ++ return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_REG_GLOB); ++} ++ ++static __inline__ struct acl_object_label * ++chk_obj_label_noglob(const struct dentry *l_dentry, const struct vfsmount *l_mnt, ++ const struct acl_subject_label *subj) ++{ ++ char *path = NULL; ++ return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_NO_GLOB); ++} ++ ++static __inline__ struct acl_object_label * ++chk_obj_create_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt, ++ const struct acl_subject_label *subj, char *path) ++{ ++ return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_CREATE_GLOB); ++} ++ ++static struct acl_subject_label * ++chk_subj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt, ++ const struct acl_role_label *role) ++{ ++ struct dentry *dentry = (struct dentry *) l_dentry; ++ struct vfsmount *mnt = (struct vfsmount *) l_mnt; ++ struct mount *real_mnt = real_mount(mnt); ++ struct acl_subject_label *retval; ++ struct dentry *parent; ++ ++ write_seqlock(&rename_lock); ++ br_read_lock(vfsmount_lock); ++ ++ for (;;) { ++ if (dentry == real_root.dentry && mnt == real_root.mnt) ++ break; ++ if (dentry == mnt->mnt_root || IS_ROOT(dentry)) { ++ if (!mnt_has_parent(real_mnt)) ++ break; ++ ++ spin_lock(&dentry->d_lock); ++ read_lock(&gr_inode_lock); ++ retval = ++ lookup_acl_subj_label(dentry->d_inode->i_ino, ++ __get_dev(dentry), role); ++ read_unlock(&gr_inode_lock); ++ spin_unlock(&dentry->d_lock); ++ if (retval != NULL) ++ goto out; ++ ++ dentry = real_mnt->mnt_mountpoint; ++ real_mnt = real_mnt->mnt_parent; ++ mnt = &real_mnt->mnt; ++ continue; ++ } ++ ++ spin_lock(&dentry->d_lock); ++ read_lock(&gr_inode_lock); ++ retval = lookup_acl_subj_label(dentry->d_inode->i_ino, ++ __get_dev(dentry), role); ++ read_unlock(&gr_inode_lock); ++ parent = dentry->d_parent; ++ spin_unlock(&dentry->d_lock); ++ ++ if (retval != NULL) ++ goto out; ++ ++ dentry = parent; ++ } ++ ++ spin_lock(&dentry->d_lock); ++ read_lock(&gr_inode_lock); ++ retval = lookup_acl_subj_label(dentry->d_inode->i_ino, ++ __get_dev(dentry), role); ++ read_unlock(&gr_inode_lock); ++ spin_unlock(&dentry->d_lock); ++ ++ if (unlikely(retval == NULL)) { ++ /* real_root is pinned, we don't need to hold a reference */ ++ read_lock(&gr_inode_lock); ++ retval = lookup_acl_subj_label(real_root.dentry->d_inode->i_ino, ++ __get_dev(real_root.dentry), role); ++ read_unlock(&gr_inode_lock); ++ } ++out: ++ br_read_unlock(vfsmount_lock); ++ write_sequnlock(&rename_lock); ++ ++ BUG_ON(retval == NULL); ++ ++ return retval; ++} ++ ++static void ++gr_log_learn(const struct dentry *dentry, const struct vfsmount *mnt, const __u32 mode) ++{ ++ struct task_struct *task = current; ++ const struct cred *cred = current_cred(); ++ ++ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, task->role->roletype, ++ cred->uid, cred->gid, task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry, ++ task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename, ++ 1UL, 1UL, gr_to_filename(dentry, mnt), (unsigned long) mode, &task->signal->saved_ip); ++ ++ return; ++} ++ ++static void ++gr_log_learn_id_change(const char type, const unsigned int real, ++ const unsigned int effective, const unsigned int fs) ++{ ++ struct task_struct *task = current; ++ const struct cred *cred = current_cred(); ++ ++ security_learn(GR_ID_LEARN_MSG, task->role->rolename, task->role->roletype, ++ cred->uid, cred->gid, task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry, ++ task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename, ++ type, real, effective, fs, &task->signal->saved_ip); ++ ++ return; ++} ++ ++__u32 ++gr_search_file(const struct dentry * dentry, const __u32 mode, ++ const struct vfsmount * mnt) ++{ ++ __u32 retval = mode; ++ struct acl_subject_label *curracl; ++ struct acl_object_label *currobj; ++ ++ if (unlikely(!(gr_status & GR_READY))) ++ return (mode & ~GR_AUDITS); ++ ++ curracl = current->acl; ++ ++ currobj = chk_obj_label(dentry, mnt, curracl); ++ retval = currobj->mode & mode; ++ ++ /* if we're opening a specified transfer file for writing ++ (e.g. /dev/initctl), then transfer our role to init ++ */ ++ if (unlikely(currobj->mode & GR_INIT_TRANSFER && retval & GR_WRITE && ++ current->role->roletype & GR_ROLE_PERSIST)) { ++ struct task_struct *task = init_pid_ns.child_reaper; ++ ++ if (task->role != current->role) { ++ task->acl_sp_role = 0; ++ task->acl_role_id = current->acl_role_id; ++ task->role = current->role; ++ rcu_read_lock(); ++ read_lock(&grsec_exec_file_lock); ++ gr_apply_subject_to_task(task); ++ read_unlock(&grsec_exec_file_lock); ++ rcu_read_unlock(); ++ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_INIT_TRANSFER_MSG); ++ } ++ } ++ ++ if (unlikely ++ ((curracl->mode & (GR_LEARN | GR_INHERITLEARN)) && !(mode & GR_NOPTRACE) ++ && (retval != (mode & ~(GR_AUDITS | GR_SUPPRESS))))) { ++ __u32 new_mode = mode; ++ ++ new_mode &= ~(GR_AUDITS | GR_SUPPRESS); ++ ++ retval = new_mode; ++ ++ if (new_mode & GR_EXEC && curracl->mode & GR_INHERITLEARN) ++ new_mode |= GR_INHERIT; ++ ++ if (!(mode & GR_NOLEARN)) ++ gr_log_learn(dentry, mnt, new_mode); ++ } ++ ++ return retval; ++} ++ ++struct acl_object_label *gr_get_create_object(const struct dentry *new_dentry, ++ const struct dentry *parent, ++ const struct vfsmount *mnt) ++{ ++ struct name_entry *match; ++ struct acl_object_label *matchpo; ++ struct acl_subject_label *curracl; ++ char *path; ++ ++ if (unlikely(!(gr_status & GR_READY))) ++ return NULL; ++ ++ preempt_disable(); ++ path = gr_to_filename_rbac(new_dentry, mnt); ++ match = lookup_name_entry_create(path); ++ ++ curracl = current->acl; ++ ++ if (match) { ++ read_lock(&gr_inode_lock); ++ matchpo = lookup_acl_obj_label_create(match->inode, match->device, curracl); ++ read_unlock(&gr_inode_lock); ++ ++ if (matchpo) { ++ preempt_enable(); ++ return matchpo; ++ } ++ } ++ ++ // lookup parent ++ ++ matchpo = chk_obj_create_label(parent, mnt, curracl, path); ++ ++ preempt_enable(); ++ return matchpo; ++} ++ ++__u32 ++gr_check_create(const struct dentry * new_dentry, const struct dentry * parent, ++ const struct vfsmount * mnt, const __u32 mode) ++{ ++ struct acl_object_label *matchpo; ++ __u32 retval; ++ ++ if (unlikely(!(gr_status & GR_READY))) ++ return (mode & ~GR_AUDITS); ++ ++ matchpo = gr_get_create_object(new_dentry, parent, mnt); ++ ++ retval = matchpo->mode & mode; ++ ++ if ((retval != (mode & ~(GR_AUDITS | GR_SUPPRESS))) ++ && (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))) { ++ __u32 new_mode = mode; ++ ++ new_mode &= ~(GR_AUDITS | GR_SUPPRESS); ++ ++ gr_log_learn(new_dentry, mnt, new_mode); ++ return new_mode; ++ } ++ ++ return retval; ++} ++ ++__u32 ++gr_check_link(const struct dentry * new_dentry, ++ const struct dentry * parent_dentry, ++ const struct vfsmount * parent_mnt, ++ const struct dentry * old_dentry, const struct vfsmount * old_mnt) ++{ ++ struct acl_object_label *obj; ++ __u32 oldmode, newmode; ++ __u32 needmode; ++ __u32 checkmodes = GR_FIND | GR_APPEND | GR_WRITE | GR_EXEC | GR_SETID | GR_READ | ++ GR_DELETE | GR_INHERIT; ++ ++ if (unlikely(!(gr_status & GR_READY))) ++ return (GR_CREATE | GR_LINK); ++ ++ obj = chk_obj_label(old_dentry, old_mnt, current->acl); ++ oldmode = obj->mode; ++ ++ obj = gr_get_create_object(new_dentry, parent_dentry, parent_mnt); ++ newmode = obj->mode; ++ ++ needmode = newmode & checkmodes; ++ ++ // old name for hardlink must have at least the permissions of the new name ++ if ((oldmode & needmode) != needmode) ++ goto bad; ++ ++ // if old name had restrictions/auditing, make sure the new name does as well ++ needmode = oldmode & (GR_NOPTRACE | GR_PTRACERD | GR_INHERIT | GR_AUDITS); ++ ++ // don't allow hardlinking of suid/sgid files without permission ++ if (old_dentry->d_inode->i_mode & (S_ISUID | S_ISGID)) ++ needmode |= GR_SETID; ++ ++ if ((newmode & needmode) != needmode) ++ goto bad; ++ ++ // enforce minimum permissions ++ if ((newmode & (GR_CREATE | GR_LINK)) == (GR_CREATE | GR_LINK)) ++ return newmode; ++bad: ++ needmode = oldmode; ++ if (old_dentry->d_inode->i_mode & (S_ISUID | S_ISGID)) ++ needmode |= GR_SETID; ++ ++ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) { ++ gr_log_learn(old_dentry, old_mnt, needmode | GR_CREATE | GR_LINK); ++ return (GR_CREATE | GR_LINK); ++ } else if (newmode & GR_SUPPRESS) ++ return GR_SUPPRESS; ++ else ++ return 0; ++} ++ ++int ++gr_check_hidden_task(const struct task_struct *task) ++{ ++ if (unlikely(!(gr_status & GR_READY))) ++ return 0; ++ ++ if (!(task->acl->mode & GR_PROCFIND) && !(current->acl->mode & GR_VIEW)) ++ return 1; ++ ++ return 0; ++} ++ ++int ++gr_check_protected_task(const struct task_struct *task) ++{ ++ if (unlikely(!(gr_status & GR_READY) || !task)) ++ return 0; ++ ++ if ((task->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) && ++ task->acl != current->acl) ++ return 1; ++ ++ return 0; ++} ++ ++int ++gr_check_protected_task_fowner(struct pid *pid, enum pid_type type) ++{ ++ struct task_struct *p; ++ int ret = 0; ++ ++ if (unlikely(!(gr_status & GR_READY) || !pid)) ++ return ret; ++ ++ read_lock(&tasklist_lock); ++ do_each_pid_task(pid, type, p) { ++ if ((p->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) && ++ p->acl != current->acl) { ++ ret = 1; ++ goto out; ++ } ++ } while_each_pid_task(pid, type, p); ++out: ++ read_unlock(&tasklist_lock); ++ ++ return ret; ++} ++ ++void ++gr_copy_label(struct task_struct *tsk) ++{ ++ tsk->signal->used_accept = 0; ++ tsk->acl_sp_role = 0; ++ tsk->acl_role_id = current->acl_role_id; ++ tsk->acl = current->acl; ++ tsk->role = current->role; ++ tsk->signal->curr_ip = current->signal->curr_ip; ++ tsk->signal->saved_ip = current->signal->saved_ip; ++ if (current->exec_file) ++ get_file(current->exec_file); ++ tsk->exec_file = current->exec_file; ++ tsk->is_writable = current->is_writable; ++ if (unlikely(current->signal->used_accept)) { ++ current->signal->curr_ip = 0; ++ current->signal->saved_ip = 0; ++ } ++ ++ return; ++} ++ ++static void ++gr_set_proc_res(struct task_struct *task) ++{ ++ struct acl_subject_label *proc; ++ unsigned short i; ++ ++ proc = task->acl; ++ ++ if (proc->mode & (GR_LEARN | GR_INHERITLEARN)) ++ return; ++ ++ for (i = 0; i < RLIM_NLIMITS; i++) { ++ if (!(proc->resmask & (1 << i))) ++ continue; ++ ++ task->signal->rlim[i].rlim_cur = proc->res[i].rlim_cur; ++ task->signal->rlim[i].rlim_max = proc->res[i].rlim_max; ++ } ++ ++ return; ++} ++ ++extern int __gr_process_user_ban(struct user_struct *user); ++ ++int ++gr_check_user_change(int real, int effective, int fs) ++{ ++ unsigned int i; ++ __u16 num; ++ uid_t *uidlist; ++ int curuid; ++ int realok = 0; ++ int effectiveok = 0; ++ int fsok = 0; ++ ++#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT) || defined(CONFIG_GRKERNSEC_BRUTE) ++ struct user_struct *user; ++ ++ if (real == -1) ++ goto skipit; ++ ++ user = find_user(real); ++ if (user == NULL) ++ goto skipit; ++ ++ if (__gr_process_user_ban(user)) { ++ /* for find_user */ ++ free_uid(user); ++ return 1; ++ } ++ ++ /* for find_user */ ++ free_uid(user); ++ ++skipit: ++#endif ++ ++ if (unlikely(!(gr_status & GR_READY))) ++ return 0; ++ ++ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) ++ gr_log_learn_id_change('u', real, effective, fs); ++ ++ num = current->acl->user_trans_num; ++ uidlist = current->acl->user_transitions; ++ ++ if (uidlist == NULL) ++ return 0; ++ ++ if (real == -1) ++ realok = 1; ++ if (effective == -1) ++ effectiveok = 1; ++ if (fs == -1) ++ fsok = 1; ++ ++ if (current->acl->user_trans_type & GR_ID_ALLOW) { ++ for (i = 0; i < num; i++) { ++ curuid = (int)uidlist[i]; ++ if (real == curuid) ++ realok = 1; ++ if (effective == curuid) ++ effectiveok = 1; ++ if (fs == curuid) ++ fsok = 1; ++ } ++ } else if (current->acl->user_trans_type & GR_ID_DENY) { ++ for (i = 0; i < num; i++) { ++ curuid = (int)uidlist[i]; ++ if (real == curuid) ++ break; ++ if (effective == curuid) ++ break; ++ if (fs == curuid) ++ break; ++ } ++ /* not in deny list */ ++ if (i == num) { ++ realok = 1; ++ effectiveok = 1; ++ fsok = 1; ++ } ++ } ++ ++ if (realok && effectiveok && fsok) ++ return 0; ++ else { ++ gr_log_int(GR_DONT_AUDIT, GR_USRCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : fs) : effective) : real); ++ return 1; ++ } ++} ++ ++int ++gr_check_group_change(int real, int effective, int fs) ++{ ++ unsigned int i; ++ __u16 num; ++ gid_t *gidlist; ++ int curgid; ++ int realok = 0; ++ int effectiveok = 0; ++ int fsok = 0; ++ ++ if (unlikely(!(gr_status & GR_READY))) ++ return 0; ++ ++ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) ++ gr_log_learn_id_change('g', real, effective, fs); ++ ++ num = current->acl->group_trans_num; ++ gidlist = current->acl->group_transitions; ++ ++ if (gidlist == NULL) ++ return 0; ++ ++ if (real == -1) ++ realok = 1; ++ if (effective == -1) ++ effectiveok = 1; ++ if (fs == -1) ++ fsok = 1; ++ ++ if (current->acl->group_trans_type & GR_ID_ALLOW) { ++ for (i = 0; i < num; i++) { ++ curgid = (int)gidlist[i]; ++ if (real == curgid) ++ realok = 1; ++ if (effective == curgid) ++ effectiveok = 1; ++ if (fs == curgid) ++ fsok = 1; ++ } ++ } else if (current->acl->group_trans_type & GR_ID_DENY) { ++ for (i = 0; i < num; i++) { ++ curgid = (int)gidlist[i]; ++ if (real == curgid) ++ break; ++ if (effective == curgid) ++ break; ++ if (fs == curgid) ++ break; ++ } ++ /* not in deny list */ ++ if (i == num) { ++ realok = 1; ++ effectiveok = 1; ++ fsok = 1; ++ } ++ } ++ ++ if (realok && effectiveok && fsok) ++ return 0; ++ else { ++ gr_log_int(GR_DONT_AUDIT, GR_GRPCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : fs) : effective) : real); ++ return 1; ++ } ++} ++ ++extern int gr_acl_is_capable(const int cap); ++ ++void ++gr_set_role_label(struct task_struct *task, const uid_t uid, const uid_t gid) ++{ ++ struct acl_role_label *role = task->role; ++ struct acl_subject_label *subj = NULL; ++ struct acl_object_label *obj; ++ struct file *filp; ++ ++ if (unlikely(!(gr_status & GR_READY))) ++ return; ++ ++ filp = task->exec_file; ++ ++ /* kernel process, we'll give them the kernel role */ ++ if (unlikely(!filp)) { ++ task->role = kernel_role; ++ task->acl = kernel_role->root_label; ++ return; ++ } else if (!task->role || !(task->role->roletype & GR_ROLE_SPECIAL)) ++ role = lookup_acl_role_label(task, uid, gid); ++ ++ /* don't change the role if we're not a privileged process */ ++ if (role && task->role != role && ++ (((role->roletype & GR_ROLE_USER) && !gr_acl_is_capable(CAP_SETUID)) || ++ ((role->roletype & GR_ROLE_GROUP) && !gr_acl_is_capable(CAP_SETGID)))) ++ return; ++ ++ /* perform subject lookup in possibly new role ++ we can use this result below in the case where role == task->role ++ */ ++ subj = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, role); ++ ++ /* if we changed uid/gid, but result in the same role ++ and are using inheritance, don't lose the inherited subject ++ if current subject is other than what normal lookup ++ would result in, we arrived via inheritance, don't ++ lose subject ++ */ ++ if (role != task->role || (!(task->acl->mode & GR_INHERITLEARN) && ++ (subj == task->acl))) ++ task->acl = subj; ++ ++ task->role = role; ++ ++ task->is_writable = 0; ++ ++ /* ignore additional mmap checks for processes that are writable ++ by the default ACL */ ++ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label); ++ if (unlikely(obj->mode & GR_WRITE)) ++ task->is_writable = 1; ++ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label); ++ if (unlikely(obj->mode & GR_WRITE)) ++ task->is_writable = 1; ++ ++#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG ++ printk(KERN_ALERT "Set role label for (%s:%d): role:%s, subject:%s\n", task->comm, task->pid, task->role->rolename, task->acl->filename); ++#endif ++ ++ gr_set_proc_res(task); ++ ++ return; ++} ++ ++int ++gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt, ++ const int unsafe_flags) ++{ ++ struct task_struct *task = current; ++ struct acl_subject_label *newacl; ++ struct acl_object_label *obj; ++ __u32 retmode; ++ ++ if (unlikely(!(gr_status & GR_READY))) ++ return 0; ++ ++ newacl = chk_subj_label(dentry, mnt, task->role); ++ ++ /* special handling for if we did an strace -f -p <pid> from an admin role, where pid then ++ did an exec ++ */ ++ rcu_read_lock(); ++ read_lock(&tasklist_lock); ++ if (task->ptrace && task->parent && ((task->parent->role->roletype & GR_ROLE_GOD) || ++ (task->parent->acl->mode & GR_POVERRIDE))) { ++ read_unlock(&tasklist_lock); ++ rcu_read_unlock(); ++ goto skip_check; ++ } ++ read_unlock(&tasklist_lock); ++ rcu_read_unlock(); ++ ++ if (unsafe_flags && !(task->acl->mode & GR_POVERRIDE) && (task->acl != newacl) && ++ !(task->role->roletype & GR_ROLE_GOD) && ++ !gr_search_file(dentry, GR_PTRACERD, mnt) && ++ !(task->acl->mode & (GR_LEARN | GR_INHERITLEARN))) { ++ if (unsafe_flags & LSM_UNSAFE_SHARE) ++ gr_log_fs_generic(GR_DONT_AUDIT, GR_UNSAFESHARE_EXEC_ACL_MSG, dentry, mnt); ++ else ++ gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_EXEC_ACL_MSG, dentry, mnt); ++ return -EACCES; ++ } ++ ++skip_check: ++ ++ obj = chk_obj_label(dentry, mnt, task->acl); ++ retmode = obj->mode & (GR_INHERIT | GR_AUDIT_INHERIT); ++ ++ if (!(task->acl->mode & GR_INHERITLEARN) && ++ ((newacl->mode & GR_LEARN) || !(retmode & GR_INHERIT))) { ++ if (obj->nested) ++ task->acl = obj->nested; ++ else ++ task->acl = newacl; ++ } else if (retmode & GR_INHERIT && retmode & GR_AUDIT_INHERIT) ++ gr_log_str_fs(GR_DO_AUDIT, GR_INHERIT_ACL_MSG, task->acl->filename, dentry, mnt); ++ ++ task->is_writable = 0; ++ ++ /* ignore additional mmap checks for processes that are writable ++ by the default ACL */ ++ obj = chk_obj_label(dentry, mnt, default_role->root_label); ++ if (unlikely(obj->mode & GR_WRITE)) ++ task->is_writable = 1; ++ obj = chk_obj_label(dentry, mnt, task->role->root_label); ++ if (unlikely(obj->mode & GR_WRITE)) ++ task->is_writable = 1; ++ ++ gr_set_proc_res(task); ++ ++#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG ++ printk(KERN_ALERT "Set subject label for (%s:%d): role:%s, subject:%s\n", task->comm, task->pid, task->role->rolename, task->acl->filename); ++#endif ++ return 0; ++} ++ ++/* always called with valid inodev ptr */ ++static void ++do_handle_delete(struct inodev_entry *inodev, const ino_t ino, const dev_t dev) ++{ ++ struct acl_object_label *matchpo; ++ struct acl_subject_label *matchps; ++ struct acl_subject_label *subj; ++ struct acl_role_label *role; ++ unsigned int x; ++ ++ FOR_EACH_ROLE_START(role) ++ FOR_EACH_SUBJECT_START(role, subj, x) ++ if ((matchpo = lookup_acl_obj_label(ino, dev, subj)) != NULL) ++ matchpo->mode |= GR_DELETED; ++ FOR_EACH_SUBJECT_END(subj,x) ++ FOR_EACH_NESTED_SUBJECT_START(role, subj) ++ if (subj->inode == ino && subj->device == dev) ++ subj->mode |= GR_DELETED; ++ FOR_EACH_NESTED_SUBJECT_END(subj) ++ if ((matchps = lookup_acl_subj_label(ino, dev, role)) != NULL) ++ matchps->mode |= GR_DELETED; ++ FOR_EACH_ROLE_END(role) ++ ++ inodev->nentry->deleted = 1; ++ ++ return; ++} ++ ++void ++gr_handle_delete(const ino_t ino, const dev_t dev) ++{ ++ struct inodev_entry *inodev; ++ ++ if (unlikely(!(gr_status & GR_READY))) ++ return; ++ ++ write_lock(&gr_inode_lock); ++ inodev = lookup_inodev_entry(ino, dev); ++ if (inodev != NULL) ++ do_handle_delete(inodev, ino, dev); ++ write_unlock(&gr_inode_lock); ++ ++ return; ++} ++ ++static void ++update_acl_obj_label(const ino_t oldinode, const dev_t olddevice, ++ const ino_t newinode, const dev_t newdevice, ++ struct acl_subject_label *subj) ++{ ++ unsigned int index = fhash(oldinode, olddevice, subj->obj_hash_size); ++ struct acl_object_label *match; ++ ++ match = subj->obj_hash[index]; ++ ++ while (match && (match->inode != oldinode || ++ match->device != olddevice || ++ !(match->mode & GR_DELETED))) ++ match = match->next; ++ ++ if (match && (match->inode == oldinode) ++ && (match->device == olddevice) ++ && (match->mode & GR_DELETED)) { ++ if (match->prev == NULL) { ++ subj->obj_hash[index] = match->next; ++ if (match->next != NULL) ++ match->next->prev = NULL; ++ } else { ++ match->prev->next = match->next; ++ if (match->next != NULL) ++ match->next->prev = match->prev; ++ } ++ match->prev = NULL; ++ match->next = NULL; ++ match->inode = newinode; ++ match->device = newdevice; ++ match->mode &= ~GR_DELETED; ++ ++ insert_acl_obj_label(match, subj); ++ } ++ ++ return; ++} ++ ++static void ++update_acl_subj_label(const ino_t oldinode, const dev_t olddevice, ++ const ino_t newinode, const dev_t newdevice, ++ struct acl_role_label *role) ++{ ++ unsigned int index = fhash(oldinode, olddevice, role->subj_hash_size); ++ struct acl_subject_label *match; ++ ++ match = role->subj_hash[index]; ++ ++ while (match && (match->inode != oldinode || ++ match->device != olddevice || ++ !(match->mode & GR_DELETED))) ++ match = match->next; ++ ++ if (match && (match->inode == oldinode) ++ && (match->device == olddevice) ++ && (match->mode & GR_DELETED)) { ++ if (match->prev == NULL) { ++ role->subj_hash[index] = match->next; ++ if (match->next != NULL) ++ match->next->prev = NULL; ++ } else { ++ match->prev->next = match->next; ++ if (match->next != NULL) ++ match->next->prev = match->prev; ++ } ++ match->prev = NULL; ++ match->next = NULL; ++ match->inode = newinode; ++ match->device = newdevice; ++ match->mode &= ~GR_DELETED; ++ ++ insert_acl_subj_label(match, role); ++ } ++ ++ return; ++} ++ ++static void ++update_inodev_entry(const ino_t oldinode, const dev_t olddevice, ++ const ino_t newinode, const dev_t newdevice) ++{ ++ unsigned int index = fhash(oldinode, olddevice, inodev_set.i_size); ++ struct inodev_entry *match; ++ ++ match = inodev_set.i_hash[index]; ++ ++ while (match && (match->nentry->inode != oldinode || ++ match->nentry->device != olddevice || !match->nentry->deleted)) ++ match = match->next; ++ ++ if (match && (match->nentry->inode == oldinode) ++ && (match->nentry->device == olddevice) && ++ match->nentry->deleted) { ++ if (match->prev == NULL) { ++ inodev_set.i_hash[index] = match->next; ++ if (match->next != NULL) ++ match->next->prev = NULL; ++ } else { ++ match->prev->next = match->next; ++ if (match->next != NULL) ++ match->next->prev = match->prev; ++ } ++ match->prev = NULL; ++ match->next = NULL; ++ match->nentry->inode = newinode; ++ match->nentry->device = newdevice; ++ match->nentry->deleted = 0; ++ ++ insert_inodev_entry(match); ++ } ++ ++ return; ++} ++ ++static void ++__do_handle_create(const struct name_entry *matchn, ino_t ino, dev_t dev) ++{ ++ struct acl_subject_label *subj; ++ struct acl_role_label *role; ++ unsigned int x; ++ ++ FOR_EACH_ROLE_START(role) ++ update_acl_subj_label(matchn->inode, matchn->device, ino, dev, role); ++ ++ FOR_EACH_NESTED_SUBJECT_START(role, subj) ++ if ((subj->inode == ino) && (subj->device == dev)) { ++ subj->inode = ino; ++ subj->device = dev; ++ } ++ FOR_EACH_NESTED_SUBJECT_END(subj) ++ FOR_EACH_SUBJECT_START(role, subj, x) ++ update_acl_obj_label(matchn->inode, matchn->device, ++ ino, dev, subj); ++ FOR_EACH_SUBJECT_END(subj,x) ++ FOR_EACH_ROLE_END(role) ++ ++ update_inodev_entry(matchn->inode, matchn->device, ino, dev); ++ ++ return; ++} ++ ++static void ++do_handle_create(const struct name_entry *matchn, const struct dentry *dentry, ++ const struct vfsmount *mnt) ++{ ++ ino_t ino = dentry->d_inode->i_ino; ++ dev_t dev = __get_dev(dentry); ++ ++ __do_handle_create(matchn, ino, dev); ++ ++ return; ++} ++ ++void ++gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++ struct name_entry *matchn; ++ ++ if (unlikely(!(gr_status & GR_READY))) ++ return; ++ ++ preempt_disable(); ++ matchn = lookup_name_entry(gr_to_filename_rbac(dentry, mnt)); ++ ++ if (unlikely((unsigned long)matchn)) { ++ write_lock(&gr_inode_lock); ++ do_handle_create(matchn, dentry, mnt); ++ write_unlock(&gr_inode_lock); ++ } ++ preempt_enable(); ++ ++ return; ++} ++ ++void ++gr_handle_proc_create(const struct dentry *dentry, const struct inode *inode) ++{ ++ struct name_entry *matchn; ++ ++ if (unlikely(!(gr_status & GR_READY))) ++ return; ++ ++ preempt_disable(); ++ matchn = lookup_name_entry(gr_to_proc_filename_rbac(dentry, init_pid_ns.proc_mnt)); ++ ++ if (unlikely((unsigned long)matchn)) { ++ write_lock(&gr_inode_lock); ++ __do_handle_create(matchn, inode->i_ino, inode->i_sb->s_dev); ++ write_unlock(&gr_inode_lock); ++ } ++ preempt_enable(); ++ ++ return; ++} ++ ++void ++gr_handle_rename(struct inode *old_dir, struct inode *new_dir, ++ struct dentry *old_dentry, ++ struct dentry *new_dentry, ++ struct vfsmount *mnt, const __u8 replace) ++{ ++ struct name_entry *matchn; ++ struct inodev_entry *inodev; ++ struct inode *inode = new_dentry->d_inode; ++ ino_t old_ino = old_dentry->d_inode->i_ino; ++ dev_t old_dev = __get_dev(old_dentry); ++ ++ /* vfs_rename swaps the name and parent link for old_dentry and ++ new_dentry ++ at this point, old_dentry has the new name, parent link, and inode ++ for the renamed file ++ if a file is being replaced by a rename, new_dentry has the inode ++ and name for the replaced file ++ */ ++ ++ if (unlikely(!(gr_status & GR_READY))) ++ return; ++ ++ preempt_disable(); ++ matchn = lookup_name_entry(gr_to_filename_rbac(old_dentry, mnt)); ++ ++ /* we wouldn't have to check d_inode if it weren't for ++ NFS silly-renaming ++ */ ++ ++ write_lock(&gr_inode_lock); ++ if (unlikely(replace && inode)) { ++ ino_t new_ino = inode->i_ino; ++ dev_t new_dev = __get_dev(new_dentry); ++ ++ inodev = lookup_inodev_entry(new_ino, new_dev); ++ if (inodev != NULL && ((inode->i_nlink <= 1) || S_ISDIR(inode->i_mode))) ++ do_handle_delete(inodev, new_ino, new_dev); ++ } ++ ++ inodev = lookup_inodev_entry(old_ino, old_dev); ++ if (inodev != NULL && ((old_dentry->d_inode->i_nlink <= 1) || S_ISDIR(old_dentry->d_inode->i_mode))) ++ do_handle_delete(inodev, old_ino, old_dev); ++ ++ if (unlikely((unsigned long)matchn)) ++ do_handle_create(matchn, old_dentry, mnt); ++ ++ write_unlock(&gr_inode_lock); ++ preempt_enable(); ++ ++ return; ++} ++ ++static int ++lookup_special_role_auth(__u16 mode, const char *rolename, unsigned char **salt, ++ unsigned char **sum) ++{ ++ struct acl_role_label *r; ++ struct role_allowed_ip *ipp; ++ struct role_transition *trans; ++ unsigned int i; ++ int found = 0; ++ u32 curr_ip = current->signal->curr_ip; ++ ++ current->signal->saved_ip = curr_ip; ++ ++ /* check transition table */ ++ ++ for (trans = current->role->transitions; trans; trans = trans->next) { ++ if (!strcmp(rolename, trans->rolename)) { ++ found = 1; ++ break; ++ } ++ } ++ ++ if (!found) ++ return 0; ++ ++ /* handle special roles that do not require authentication ++ and check ip */ ++ ++ FOR_EACH_ROLE_START(r) ++ if (!strcmp(rolename, r->rolename) && ++ (r->roletype & GR_ROLE_SPECIAL)) { ++ found = 0; ++ if (r->allowed_ips != NULL) { ++ for (ipp = r->allowed_ips; ipp; ipp = ipp->next) { ++ if ((ntohl(curr_ip) & ipp->netmask) == ++ (ntohl(ipp->addr) & ipp->netmask)) ++ found = 1; ++ } ++ } else ++ found = 2; ++ if (!found) ++ return 0; ++ ++ if (((mode == GR_SPROLE) && (r->roletype & GR_ROLE_NOPW)) || ++ ((mode == GR_SPROLEPAM) && (r->roletype & GR_ROLE_PAM))) { ++ *salt = NULL; ++ *sum = NULL; ++ return 1; ++ } ++ } ++ FOR_EACH_ROLE_END(r) ++ ++ for (i = 0; i < num_sprole_pws; i++) { ++ if (!strcmp(rolename, acl_special_roles[i]->rolename)) { ++ *salt = acl_special_roles[i]->salt; ++ *sum = acl_special_roles[i]->sum; ++ return 1; ++ } ++ } ++ ++ return 0; ++} ++ ++static void ++assign_special_role(char *rolename) ++{ ++ struct acl_object_label *obj; ++ struct acl_role_label *r; ++ struct acl_role_label *assigned = NULL; ++ struct task_struct *tsk; ++ struct file *filp; ++ ++ FOR_EACH_ROLE_START(r) ++ if (!strcmp(rolename, r->rolename) && ++ (r->roletype & GR_ROLE_SPECIAL)) { ++ assigned = r; ++ break; ++ } ++ FOR_EACH_ROLE_END(r) ++ ++ if (!assigned) ++ return; ++ ++ read_lock(&tasklist_lock); ++ read_lock(&grsec_exec_file_lock); ++ ++ tsk = current->real_parent; ++ if (tsk == NULL) ++ goto out_unlock; ++ ++ filp = tsk->exec_file; ++ if (filp == NULL) ++ goto out_unlock; ++ ++ tsk->is_writable = 0; ++ ++ tsk->acl_sp_role = 1; ++ tsk->acl_role_id = ++acl_sp_role_value; ++ tsk->role = assigned; ++ tsk->acl = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role); ++ ++ /* ignore additional mmap checks for processes that are writable ++ by the default ACL */ ++ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label); ++ if (unlikely(obj->mode & GR_WRITE)) ++ tsk->is_writable = 1; ++ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role->root_label); ++ if (unlikely(obj->mode & GR_WRITE)) ++ tsk->is_writable = 1; ++ ++#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG ++ printk(KERN_ALERT "Assigning special role:%s subject:%s to process (%s:%d)\n", tsk->role->rolename, tsk->acl->filename, tsk->comm, tsk->pid); ++#endif ++ ++out_unlock: ++ read_unlock(&grsec_exec_file_lock); ++ read_unlock(&tasklist_lock); ++ return; ++} ++ ++int gr_check_secure_terminal(struct task_struct *task) ++{ ++ struct task_struct *p, *p2, *p3; ++ struct files_struct *files; ++ struct fdtable *fdt; ++ struct file *our_file = NULL, *file; ++ int i; ++ ++ if (task->signal->tty == NULL) ++ return 1; ++ ++ files = get_files_struct(task); ++ if (files != NULL) { ++ rcu_read_lock(); ++ fdt = files_fdtable(files); ++ for (i=0; i < fdt->max_fds; i++) { ++ file = fcheck_files(files, i); ++ if (file && (our_file == NULL) && (file->private_data == task->signal->tty)) { ++ get_file(file); ++ our_file = file; ++ } ++ } ++ rcu_read_unlock(); ++ put_files_struct(files); ++ } ++ ++ if (our_file == NULL) ++ return 1; ++ ++ read_lock(&tasklist_lock); ++ do_each_thread(p2, p) { ++ files = get_files_struct(p); ++ if (files == NULL || ++ (p->signal && p->signal->tty == task->signal->tty)) { ++ if (files != NULL) ++ put_files_struct(files); ++ continue; ++ } ++ rcu_read_lock(); ++ fdt = files_fdtable(files); ++ for (i=0; i < fdt->max_fds; i++) { ++ file = fcheck_files(files, i); ++ if (file && S_ISCHR(file->f_path.dentry->d_inode->i_mode) && ++ file->f_path.dentry->d_inode->i_rdev == our_file->f_path.dentry->d_inode->i_rdev) { ++ p3 = task; ++ while (p3->pid > 0) { ++ if (p3 == p) ++ break; ++ p3 = p3->real_parent; ++ } ++ if (p3 == p) ++ break; ++ gr_log_ttysniff(GR_DONT_AUDIT_GOOD, GR_TTYSNIFF_ACL_MSG, p); ++ gr_handle_alertkill(p); ++ rcu_read_unlock(); ++ put_files_struct(files); ++ read_unlock(&tasklist_lock); ++ fput(our_file); ++ return 0; ++ } ++ } ++ rcu_read_unlock(); ++ put_files_struct(files); ++ } while_each_thread(p2, p); ++ read_unlock(&tasklist_lock); ++ ++ fput(our_file); ++ return 1; ++} ++ ++static int gr_rbac_disable(void *unused) ++{ ++ pax_open_kernel(); ++ gr_status &= ~GR_READY; ++ pax_close_kernel(); ++ ++ return 0; ++} ++ ++ssize_t ++write_grsec_handler(struct file *file, const char * buf, size_t count, loff_t *ppos) ++{ ++ struct gr_arg_wrapper uwrap; ++ unsigned char *sprole_salt = NULL; ++ unsigned char *sprole_sum = NULL; ++ int error = sizeof (struct gr_arg_wrapper); ++ int error2 = 0; ++ ++ mutex_lock(&gr_dev_mutex); ++ ++ if ((gr_status & GR_READY) && !(current->acl->mode & GR_KERNELAUTH)) { ++ error = -EPERM; ++ goto out; ++ } ++ ++ if (count != sizeof (struct gr_arg_wrapper)) { ++ gr_log_int_int(GR_DONT_AUDIT_GOOD, GR_DEV_ACL_MSG, (int)count, (int)sizeof(struct gr_arg_wrapper)); ++ error = -EINVAL; ++ goto out; ++ } ++ ++ ++ if (gr_auth_expires && time_after_eq(get_seconds(), gr_auth_expires)) { ++ gr_auth_expires = 0; ++ gr_auth_attempts = 0; ++ } ++ ++ if (copy_from_user(&uwrap, buf, sizeof (struct gr_arg_wrapper))) { ++ error = -EFAULT; ++ goto out; ++ } ++ ++ if ((uwrap.version != GRSECURITY_VERSION) || (uwrap.size != sizeof(struct gr_arg))) { ++ error = -EINVAL; ++ goto out; ++ } ++ ++ if (copy_from_user(gr_usermode, uwrap.arg, sizeof (struct gr_arg))) { ++ error = -EFAULT; ++ goto out; ++ } ++ ++ if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_SPROLEPAM && ++ gr_auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES && ++ time_after(gr_auth_expires, get_seconds())) { ++ error = -EBUSY; ++ goto out; ++ } ++ ++ /* if non-root trying to do anything other than use a special role, ++ do not attempt authentication, do not count towards authentication ++ locking ++ */ ++ ++ if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_STATUS && ++ gr_usermode->mode != GR_UNSPROLE && gr_usermode->mode != GR_SPROLEPAM && ++ current_uid()) { ++ error = -EPERM; ++ goto out; ++ } ++ ++ /* ensure pw and special role name are null terminated */ ++ ++ gr_usermode->pw[GR_PW_LEN - 1] = '\0'; ++ gr_usermode->sp_role[GR_SPROLE_LEN - 1] = '\0'; ++ ++ /* Okay. ++ * We have our enough of the argument structure..(we have yet ++ * to copy_from_user the tables themselves) . Copy the tables ++ * only if we need them, i.e. for loading operations. */ ++ ++ switch (gr_usermode->mode) { ++ case GR_STATUS: ++ if (gr_status & GR_READY) { ++ error = 1; ++ if (!gr_check_secure_terminal(current)) ++ error = 3; ++ } else ++ error = 2; ++ goto out; ++ case GR_SHUTDOWN: ++ if ((gr_status & GR_READY) ++ && !(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) { ++ stop_machine(gr_rbac_disable, NULL, NULL); ++ free_variables(); ++ memset(gr_usermode, 0, sizeof (struct gr_arg)); ++ memset(gr_system_salt, 0, GR_SALT_LEN); ++ memset(gr_system_sum, 0, GR_SHA_LEN); ++ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTS_ACL_MSG); ++ } else if (gr_status & GR_READY) { ++ gr_log_noargs(GR_DONT_AUDIT, GR_SHUTF_ACL_MSG); ++ error = -EPERM; ++ } else { ++ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTI_ACL_MSG); ++ error = -EAGAIN; ++ } ++ break; ++ case GR_ENABLE: ++ if (!(gr_status & GR_READY) && !(error2 = gracl_init(gr_usermode))) ++ gr_log_str(GR_DONT_AUDIT_GOOD, GR_ENABLE_ACL_MSG, GR_VERSION); ++ else { ++ if (gr_status & GR_READY) ++ error = -EAGAIN; ++ else ++ error = error2; ++ gr_log_str(GR_DONT_AUDIT, GR_ENABLEF_ACL_MSG, GR_VERSION); ++ } ++ break; ++ case GR_RELOAD: ++ if (!(gr_status & GR_READY)) { ++ gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOADI_ACL_MSG, GR_VERSION); ++ error = -EAGAIN; ++ } else if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) { ++ stop_machine(gr_rbac_disable, NULL, NULL); ++ free_variables(); ++ error2 = gracl_init(gr_usermode); ++ if (!error2) ++ gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOAD_ACL_MSG, GR_VERSION); ++ else { ++ gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION); ++ error = error2; ++ } ++ } else { ++ gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION); ++ error = -EPERM; ++ } ++ break; ++ case GR_SEGVMOD: ++ if (unlikely(!(gr_status & GR_READY))) { ++ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODI_ACL_MSG); ++ error = -EAGAIN; ++ break; ++ } ++ ++ if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) { ++ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODS_ACL_MSG); ++ if (gr_usermode->segv_device && gr_usermode->segv_inode) { ++ struct acl_subject_label *segvacl; ++ segvacl = ++ lookup_acl_subj_label(gr_usermode->segv_inode, ++ gr_usermode->segv_device, ++ current->role); ++ if (segvacl) { ++ segvacl->crashes = 0; ++ segvacl->expires = 0; ++ } ++ } else if (gr_find_uid(gr_usermode->segv_uid) >= 0) { ++ gr_remove_uid(gr_usermode->segv_uid); ++ } ++ } else { ++ gr_log_noargs(GR_DONT_AUDIT, GR_SEGVMODF_ACL_MSG); ++ error = -EPERM; ++ } ++ break; ++ case GR_SPROLE: ++ case GR_SPROLEPAM: ++ if (unlikely(!(gr_status & GR_READY))) { ++ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SPROLEI_ACL_MSG); ++ error = -EAGAIN; ++ break; ++ } ++ ++ if (current->role->expires && time_after_eq(get_seconds(), current->role->expires)) { ++ current->role->expires = 0; ++ current->role->auth_attempts = 0; ++ } ++ ++ if (current->role->auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES && ++ time_after(current->role->expires, get_seconds())) { ++ error = -EBUSY; ++ goto out; ++ } ++ ++ if (lookup_special_role_auth ++ (gr_usermode->mode, gr_usermode->sp_role, &sprole_salt, &sprole_sum) ++ && ((!sprole_salt && !sprole_sum) ++ || !(chkpw(gr_usermode, sprole_salt, sprole_sum)))) { ++ char *p = ""; ++ assign_special_role(gr_usermode->sp_role); ++ read_lock(&tasklist_lock); ++ if (current->real_parent) ++ p = current->real_parent->role->rolename; ++ read_unlock(&tasklist_lock); ++ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLES_ACL_MSG, ++ p, acl_sp_role_value); ++ } else { ++ gr_log_str(GR_DONT_AUDIT, GR_SPROLEF_ACL_MSG, gr_usermode->sp_role); ++ error = -EPERM; ++ if(!(current->role->auth_attempts++)) ++ current->role->expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT; ++ ++ goto out; ++ } ++ break; ++ case GR_UNSPROLE: ++ if (unlikely(!(gr_status & GR_READY))) { ++ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_UNSPROLEI_ACL_MSG); ++ error = -EAGAIN; ++ break; ++ } ++ ++ if (current->role->roletype & GR_ROLE_SPECIAL) { ++ char *p = ""; ++ int i = 0; ++ ++ read_lock(&tasklist_lock); ++ if (current->real_parent) { ++ p = current->real_parent->role->rolename; ++ i = current->real_parent->acl_role_id; ++ } ++ read_unlock(&tasklist_lock); ++ ++ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_UNSPROLES_ACL_MSG, p, i); ++ gr_set_acls(1); ++ } else { ++ error = -EPERM; ++ goto out; ++ } ++ break; ++ default: ++ gr_log_int(GR_DONT_AUDIT, GR_INVMODE_ACL_MSG, gr_usermode->mode); ++ error = -EINVAL; ++ break; ++ } ++ ++ if (error != -EPERM) ++ goto out; ++ ++ if(!(gr_auth_attempts++)) ++ gr_auth_expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT; ++ ++ out: ++ mutex_unlock(&gr_dev_mutex); ++ return error; ++} ++ ++/* must be called with ++ rcu_read_lock(); ++ read_lock(&tasklist_lock); ++ read_lock(&grsec_exec_file_lock); ++*/ ++int gr_apply_subject_to_task(struct task_struct *task) ++{ ++ struct acl_object_label *obj; ++ char *tmpname; ++ struct acl_subject_label *tmpsubj; ++ struct file *filp; ++ struct name_entry *nmatch; ++ ++ filp = task->exec_file; ++ if (filp == NULL) ++ return 0; ++ ++ /* the following is to apply the correct subject ++ on binaries running when the RBAC system ++ is enabled, when the binaries have been ++ replaced or deleted since their execution ++ ----- ++ when the RBAC system starts, the inode/dev ++ from exec_file will be one the RBAC system ++ is unaware of. It only knows the inode/dev ++ of the present file on disk, or the absence ++ of it. ++ */ ++ preempt_disable(); ++ tmpname = gr_to_filename_rbac(filp->f_path.dentry, filp->f_path.mnt); ++ ++ nmatch = lookup_name_entry(tmpname); ++ preempt_enable(); ++ tmpsubj = NULL; ++ if (nmatch) { ++ if (nmatch->deleted) ++ tmpsubj = lookup_acl_subj_label_deleted(nmatch->inode, nmatch->device, task->role); ++ else ++ tmpsubj = lookup_acl_subj_label(nmatch->inode, nmatch->device, task->role); ++ if (tmpsubj != NULL) ++ task->acl = tmpsubj; ++ } ++ if (tmpsubj == NULL) ++ task->acl = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, ++ task->role); ++ if (task->acl) { ++ task->is_writable = 0; ++ /* ignore additional mmap checks for processes that are writable ++ by the default ACL */ ++ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label); ++ if (unlikely(obj->mode & GR_WRITE)) ++ task->is_writable = 1; ++ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label); ++ if (unlikely(obj->mode & GR_WRITE)) ++ task->is_writable = 1; ++ ++ gr_set_proc_res(task); ++ ++#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG ++ printk(KERN_ALERT "gr_set_acls for (%s:%d): role:%s, subject:%s\n", task->comm, task->pid, task->role->rolename, task->acl->filename); ++#endif ++ } else { ++ return 1; ++ } ++ ++ return 0; ++} ++ ++int ++gr_set_acls(const int type) ++{ ++ struct task_struct *task, *task2; ++ struct acl_role_label *role = current->role; ++ __u16 acl_role_id = current->acl_role_id; ++ const struct cred *cred; ++ int ret; ++ ++ rcu_read_lock(); ++ read_lock(&tasklist_lock); ++ read_lock(&grsec_exec_file_lock); ++ do_each_thread(task2, task) { ++ /* check to see if we're called from the exit handler, ++ if so, only replace ACLs that have inherited the admin ++ ACL */ ++ ++ if (type && (task->role != role || ++ task->acl_role_id != acl_role_id)) ++ continue; ++ ++ task->acl_role_id = 0; ++ task->acl_sp_role = 0; ++ ++ if (task->exec_file) { ++ cred = __task_cred(task); ++ task->role = lookup_acl_role_label(task, cred->uid, cred->gid); ++ ret = gr_apply_subject_to_task(task); ++ if (ret) { ++ read_unlock(&grsec_exec_file_lock); ++ read_unlock(&tasklist_lock); ++ rcu_read_unlock(); ++ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_DEFACL_MSG, task->comm, task->pid); ++ return ret; ++ } ++ } else { ++ // it's a kernel process ++ task->role = kernel_role; ++ task->acl = kernel_role->root_label; ++#ifdef CONFIG_GRKERNSEC_ACL_HIDEKERN ++ task->acl->mode &= ~GR_PROCFIND; ++#endif ++ } ++ } while_each_thread(task2, task); ++ read_unlock(&grsec_exec_file_lock); ++ read_unlock(&tasklist_lock); ++ rcu_read_unlock(); ++ ++ return 0; ++} ++ ++void ++gr_learn_resource(const struct task_struct *task, ++ const int res, const unsigned long wanted, const int gt) ++{ ++ struct acl_subject_label *acl; ++ const struct cred *cred; ++ ++ if (unlikely((gr_status & GR_READY) && ++ task->acl && (task->acl->mode & (GR_LEARN | GR_INHERITLEARN)))) ++ goto skip_reslog; ++ ++#ifdef CONFIG_GRKERNSEC_RESLOG ++ gr_log_resource(task, res, wanted, gt); ++#endif ++ skip_reslog: ++ ++ if (unlikely(!(gr_status & GR_READY) || !wanted || res >= GR_NLIMITS)) ++ return; ++ ++ acl = task->acl; ++ ++ if (likely(!acl || !(acl->mode & (GR_LEARN | GR_INHERITLEARN)) || ++ !(acl->resmask & (1 << (unsigned short) res)))) ++ return; ++ ++ if (wanted >= acl->res[res].rlim_cur) { ++ unsigned long res_add; ++ ++ res_add = wanted; ++ switch (res) { ++ case RLIMIT_CPU: ++ res_add += GR_RLIM_CPU_BUMP; ++ break; ++ case RLIMIT_FSIZE: ++ res_add += GR_RLIM_FSIZE_BUMP; ++ break; ++ case RLIMIT_DATA: ++ res_add += GR_RLIM_DATA_BUMP; ++ break; ++ case RLIMIT_STACK: ++ res_add += GR_RLIM_STACK_BUMP; ++ break; ++ case RLIMIT_CORE: ++ res_add += GR_RLIM_CORE_BUMP; ++ break; ++ case RLIMIT_RSS: ++ res_add += GR_RLIM_RSS_BUMP; ++ break; ++ case RLIMIT_NPROC: ++ res_add += GR_RLIM_NPROC_BUMP; ++ break; ++ case RLIMIT_NOFILE: ++ res_add += GR_RLIM_NOFILE_BUMP; ++ break; ++ case RLIMIT_MEMLOCK: ++ res_add += GR_RLIM_MEMLOCK_BUMP; ++ break; ++ case RLIMIT_AS: ++ res_add += GR_RLIM_AS_BUMP; ++ break; ++ case RLIMIT_LOCKS: ++ res_add += GR_RLIM_LOCKS_BUMP; ++ break; ++ case RLIMIT_SIGPENDING: ++ res_add += GR_RLIM_SIGPENDING_BUMP; ++ break; ++ case RLIMIT_MSGQUEUE: ++ res_add += GR_RLIM_MSGQUEUE_BUMP; ++ break; ++ case RLIMIT_NICE: ++ res_add += GR_RLIM_NICE_BUMP; ++ break; ++ case RLIMIT_RTPRIO: ++ res_add += GR_RLIM_RTPRIO_BUMP; ++ break; ++ case RLIMIT_RTTIME: ++ res_add += GR_RLIM_RTTIME_BUMP; ++ break; ++ } ++ ++ acl->res[res].rlim_cur = res_add; ++ ++ if (wanted > acl->res[res].rlim_max) ++ acl->res[res].rlim_max = res_add; ++ ++ /* only log the subject filename, since resource logging is supported for ++ single-subject learning only */ ++ rcu_read_lock(); ++ cred = __task_cred(task); ++ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, ++ task->role->roletype, cred->uid, cred->gid, acl->filename, ++ acl->filename, acl->res[res].rlim_cur, acl->res[res].rlim_max, ++ "", (unsigned long) res, &task->signal->saved_ip); ++ rcu_read_unlock(); ++ } ++ ++ return; ++} ++ ++#if defined(CONFIG_PAX_HAVE_ACL_FLAGS) && (defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)) ++void ++pax_set_initial_flags(struct linux_binprm *bprm) ++{ ++ struct task_struct *task = current; ++ struct acl_subject_label *proc; ++ unsigned long flags; ++ ++ if (unlikely(!(gr_status & GR_READY))) ++ return; ++ ++ flags = pax_get_flags(task); ++ ++ proc = task->acl; ++ ++ if (proc->pax_flags & GR_PAX_DISABLE_PAGEEXEC) ++ flags &= ~MF_PAX_PAGEEXEC; ++ if (proc->pax_flags & GR_PAX_DISABLE_SEGMEXEC) ++ flags &= ~MF_PAX_SEGMEXEC; ++ if (proc->pax_flags & GR_PAX_DISABLE_RANDMMAP) ++ flags &= ~MF_PAX_RANDMMAP; ++ if (proc->pax_flags & GR_PAX_DISABLE_EMUTRAMP) ++ flags &= ~MF_PAX_EMUTRAMP; ++ if (proc->pax_flags & GR_PAX_DISABLE_MPROTECT) ++ flags &= ~MF_PAX_MPROTECT; ++ ++ if (proc->pax_flags & GR_PAX_ENABLE_PAGEEXEC) ++ flags |= MF_PAX_PAGEEXEC; ++ if (proc->pax_flags & GR_PAX_ENABLE_SEGMEXEC) ++ flags |= MF_PAX_SEGMEXEC; ++ if (proc->pax_flags & GR_PAX_ENABLE_RANDMMAP) ++ flags |= MF_PAX_RANDMMAP; ++ if (proc->pax_flags & GR_PAX_ENABLE_EMUTRAMP) ++ flags |= MF_PAX_EMUTRAMP; ++ if (proc->pax_flags & GR_PAX_ENABLE_MPROTECT) ++ flags |= MF_PAX_MPROTECT; ++ ++ pax_set_flags(task, flags); ++ ++ return; ++} ++#endif ++ ++int ++gr_handle_proc_ptrace(struct task_struct *task) ++{ ++ struct file *filp; ++ struct task_struct *tmp = task; ++ struct task_struct *curtemp = current; ++ __u32 retmode; ++ ++#ifndef CONFIG_GRKERNSEC_HARDEN_PTRACE ++ if (unlikely(!(gr_status & GR_READY))) ++ return 0; ++#endif ++ ++ read_lock(&tasklist_lock); ++ read_lock(&grsec_exec_file_lock); ++ filp = task->exec_file; ++ ++ while (tmp->pid > 0) { ++ if (tmp == curtemp) ++ break; ++ tmp = tmp->real_parent; ++ } ++ ++ if (!filp || (tmp->pid == 0 && ((grsec_enable_harden_ptrace && current_uid() && !(gr_status & GR_READY)) || ++ ((gr_status & GR_READY) && !(current->acl->mode & GR_RELAXPTRACE))))) { ++ read_unlock(&grsec_exec_file_lock); ++ read_unlock(&tasklist_lock); ++ return 1; ++ } ++ ++#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE ++ if (!(gr_status & GR_READY)) { ++ read_unlock(&grsec_exec_file_lock); ++ read_unlock(&tasklist_lock); ++ return 0; ++ } ++#endif ++ ++ retmode = gr_search_file(filp->f_path.dentry, GR_NOPTRACE, filp->f_path.mnt); ++ read_unlock(&grsec_exec_file_lock); ++ read_unlock(&tasklist_lock); ++ ++ if (retmode & GR_NOPTRACE) ++ return 1; ++ ++ if (!(current->acl->mode & GR_POVERRIDE) && !(current->role->roletype & GR_ROLE_GOD) ++ && (current->acl != task->acl || (current->acl != current->role->root_label ++ && current->pid != task->pid))) ++ return 1; ++ ++ return 0; ++} ++ ++void task_grsec_rbac(struct seq_file *m, struct task_struct *p) ++{ ++ if (unlikely(!(gr_status & GR_READY))) ++ return; ++ ++ if (!(current->role->roletype & GR_ROLE_GOD)) ++ return; ++ ++ seq_printf(m, "RBAC:\t%.64s:%c:%.950s\n", ++ p->role->rolename, gr_task_roletype_to_char(p), ++ p->acl->filename); ++} ++ ++int ++gr_handle_ptrace(struct task_struct *task, const long request) ++{ ++ struct task_struct *tmp = task; ++ struct task_struct *curtemp = current; ++ __u32 retmode; ++ ++#ifndef CONFIG_GRKERNSEC_HARDEN_PTRACE ++ if (unlikely(!(gr_status & GR_READY))) ++ return 0; ++#endif ++ if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) { ++ read_lock(&tasklist_lock); ++ while (tmp->pid > 0) { ++ if (tmp == curtemp) ++ break; ++ tmp = tmp->real_parent; ++ } ++ ++ if (tmp->pid == 0 && ((grsec_enable_harden_ptrace && current_uid() && !(gr_status & GR_READY)) || ++ ((gr_status & GR_READY) && !(current->acl->mode & GR_RELAXPTRACE)))) { ++ read_unlock(&tasklist_lock); ++ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task); ++ return 1; ++ } ++ read_unlock(&tasklist_lock); ++ } ++ ++#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE ++ if (!(gr_status & GR_READY)) ++ return 0; ++#endif ++ ++ read_lock(&grsec_exec_file_lock); ++ if (unlikely(!task->exec_file)) { ++ read_unlock(&grsec_exec_file_lock); ++ return 0; ++ } ++ ++ retmode = gr_search_file(task->exec_file->f_path.dentry, GR_PTRACERD | GR_NOPTRACE, task->exec_file->f_path.mnt); ++ read_unlock(&grsec_exec_file_lock); ++ ++ if (retmode & GR_NOPTRACE) { ++ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task); ++ return 1; ++ } ++ ++ if (retmode & GR_PTRACERD) { ++ switch (request) { ++ case PTRACE_SEIZE: ++ case PTRACE_POKETEXT: ++ case PTRACE_POKEDATA: ++ case PTRACE_POKEUSR: ++#if !defined(CONFIG_PPC32) && !defined(CONFIG_PPC64) && !defined(CONFIG_PARISC) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64) ++ case PTRACE_SETREGS: ++ case PTRACE_SETFPREGS: ++#endif ++#ifdef CONFIG_X86 ++ case PTRACE_SETFPXREGS: ++#endif ++#ifdef CONFIG_ALTIVEC ++ case PTRACE_SETVRREGS: ++#endif ++ return 1; ++ default: ++ return 0; ++ } ++ } else if (!(current->acl->mode & GR_POVERRIDE) && ++ !(current->role->roletype & GR_ROLE_GOD) && ++ (current->acl != task->acl)) { ++ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task); ++ return 1; ++ } ++ ++ return 0; ++} ++ ++static int is_writable_mmap(const struct file *filp) ++{ ++ struct task_struct *task = current; ++ struct acl_object_label *obj, *obj2; ++ ++ if (gr_status & GR_READY && !(task->acl->mode & GR_OVERRIDE) && ++ !task->is_writable && S_ISREG(filp->f_path.dentry->d_inode->i_mode) && (filp->f_path.mnt != shm_mnt || (filp->f_path.dentry->d_inode->i_nlink > 0))) { ++ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label); ++ obj2 = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, ++ task->role->root_label); ++ if (unlikely((obj->mode & GR_WRITE) || (obj2->mode & GR_WRITE))) { ++ gr_log_fs_generic(GR_DONT_AUDIT, GR_WRITLIB_ACL_MSG, filp->f_path.dentry, filp->f_path.mnt); ++ return 1; ++ } ++ } ++ return 0; ++} ++ ++int ++gr_acl_handle_mmap(const struct file *file, const unsigned long prot) ++{ ++ __u32 mode; ++ ++ if (unlikely(!file || !(prot & PROT_EXEC))) ++ return 1; ++ ++ if (is_writable_mmap(file)) ++ return 0; ++ ++ mode = ++ gr_search_file(file->f_path.dentry, ++ GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS, ++ file->f_path.mnt); ++ ++ if (!gr_tpe_allow(file)) ++ return 0; ++ ++ if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) { ++ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt); ++ return 0; ++ } else if (unlikely(!(mode & GR_EXEC))) { ++ return 0; ++ } else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) { ++ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt); ++ return 1; ++ } ++ ++ return 1; ++} ++ ++int ++gr_acl_handle_mprotect(const struct file *file, const unsigned long prot) ++{ ++ __u32 mode; ++ ++ if (unlikely(!file || !(prot & PROT_EXEC))) ++ return 1; ++ ++ if (is_writable_mmap(file)) ++ return 0; ++ ++ mode = ++ gr_search_file(file->f_path.dentry, ++ GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS, ++ file->f_path.mnt); ++ ++ if (!gr_tpe_allow(file)) ++ return 0; ++ ++ if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) { ++ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt); ++ return 0; ++ } else if (unlikely(!(mode & GR_EXEC))) { ++ return 0; ++ } else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) { ++ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt); ++ return 1; ++ } ++ ++ return 1; ++} ++ ++void ++gr_acl_handle_psacct(struct task_struct *task, const long code) ++{ ++ unsigned long runtime; ++ unsigned long cputime; ++ unsigned int wday, cday; ++ __u8 whr, chr; ++ __u8 wmin, cmin; ++ __u8 wsec, csec; ++ struct timespec timeval; ++ ++ if (unlikely(!(gr_status & GR_READY) || !task->acl || ++ !(task->acl->mode & GR_PROCACCT))) ++ return; ++ ++ do_posix_clock_monotonic_gettime(&timeval); ++ runtime = timeval.tv_sec - task->start_time.tv_sec; ++ wday = runtime / (3600 * 24); ++ runtime -= wday * (3600 * 24); ++ whr = runtime / 3600; ++ runtime -= whr * 3600; ++ wmin = runtime / 60; ++ runtime -= wmin * 60; ++ wsec = runtime; ++ ++ cputime = (task->utime + task->stime) / HZ; ++ cday = cputime / (3600 * 24); ++ cputime -= cday * (3600 * 24); ++ chr = cputime / 3600; ++ cputime -= chr * 3600; ++ cmin = cputime / 60; ++ cputime -= cmin * 60; ++ csec = cputime; ++ ++ gr_log_procacct(GR_DO_AUDIT, GR_ACL_PROCACCT_MSG, task, wday, whr, wmin, wsec, cday, chr, cmin, csec, code); ++ ++ return; ++} ++ ++void gr_set_kernel_label(struct task_struct *task) ++{ ++ if (gr_status & GR_READY) { ++ task->role = kernel_role; ++ task->acl = kernel_role->root_label; ++ } ++ return; ++} ++ ++#ifdef CONFIG_TASKSTATS ++int gr_is_taskstats_denied(int pid) ++{ ++ struct task_struct *task; ++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ const struct cred *cred; ++#endif ++ int ret = 0; ++ ++ /* restrict taskstats viewing to un-chrooted root users ++ who have the 'view' subject flag if the RBAC system is enabled ++ */ ++ ++ rcu_read_lock(); ++ read_lock(&tasklist_lock); ++ task = find_task_by_vpid(pid); ++ if (task) { ++#ifdef CONFIG_GRKERNSEC_CHROOT ++ if (proc_is_chrooted(task)) ++ ret = -EACCES; ++#endif ++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ cred = __task_cred(task); ++#ifdef CONFIG_GRKERNSEC_PROC_USER ++ if (cred->uid != 0) ++ ret = -EACCES; ++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ if (cred->uid != 0 && !groups_search(cred->group_info, CONFIG_GRKERNSEC_PROC_GID)) ++ ret = -EACCES; ++#endif ++#endif ++ if (gr_status & GR_READY) { ++ if (!(task->acl->mode & GR_VIEW)) ++ ret = -EACCES; ++ } ++ } else ++ ret = -ENOENT; ++ ++ read_unlock(&tasklist_lock); ++ rcu_read_unlock(); ++ ++ return ret; ++} ++#endif ++ ++/* AUXV entries are filled via a descendant of search_binary_handler ++ after we've already applied the subject for the target ++*/ ++int gr_acl_enable_at_secure(void) ++{ ++ if (unlikely(!(gr_status & GR_READY))) ++ return 0; ++ ++ if (current->acl->mode & GR_ATSECURE) ++ return 1; ++ ++ return 0; ++} ++ ++int gr_acl_handle_filldir(const struct file *file, const char *name, const unsigned int namelen, const ino_t ino) ++{ ++ struct task_struct *task = current; ++ struct dentry *dentry = file->f_path.dentry; ++ struct vfsmount *mnt = file->f_path.mnt; ++ struct acl_object_label *obj, *tmp; ++ struct acl_subject_label *subj; ++ unsigned int bufsize; ++ int is_not_root; ++ char *path; ++ dev_t dev = __get_dev(dentry); ++ ++ if (unlikely(!(gr_status & GR_READY))) ++ return 1; ++ ++ if (task->acl->mode & (GR_LEARN | GR_INHERITLEARN)) ++ return 1; ++ ++ /* ignore Eric Biederman */ ++ if (IS_PRIVATE(dentry->d_inode)) ++ return 1; ++ ++ subj = task->acl; ++ read_lock(&gr_inode_lock); ++ do { ++ obj = lookup_acl_obj_label(ino, dev, subj); ++ if (obj != NULL) { ++ read_unlock(&gr_inode_lock); ++ return (obj->mode & GR_FIND) ? 1 : 0; ++ } ++ } while ((subj = subj->parent_subject)); ++ read_unlock(&gr_inode_lock); ++ ++ /* this is purely an optimization since we're looking for an object ++ for the directory we're doing a readdir on ++ if it's possible for any globbed object to match the entry we're ++ filling into the directory, then the object we find here will be ++ an anchor point with attached globbed objects ++ */ ++ obj = chk_obj_label_noglob(dentry, mnt, task->acl); ++ if (obj->globbed == NULL) ++ return (obj->mode & GR_FIND) ? 1 : 0; ++ ++ is_not_root = ((obj->filename[0] == '/') && ++ (obj->filename[1] == '\0')) ? 0 : 1; ++ bufsize = PAGE_SIZE - namelen - is_not_root; ++ ++ /* check bufsize > PAGE_SIZE || bufsize == 0 */ ++ if (unlikely((bufsize - 1) > (PAGE_SIZE - 1))) ++ return 1; ++ ++ preempt_disable(); ++ path = d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()), ++ bufsize); ++ ++ bufsize = strlen(path); ++ ++ /* if base is "/", don't append an additional slash */ ++ if (is_not_root) ++ *(path + bufsize) = '/'; ++ memcpy(path + bufsize + is_not_root, name, namelen); ++ *(path + bufsize + namelen + is_not_root) = '\0'; ++ ++ tmp = obj->globbed; ++ while (tmp) { ++ if (!glob_match(tmp->filename, path)) { ++ preempt_enable(); ++ return (tmp->mode & GR_FIND) ? 1 : 0; ++ } ++ tmp = tmp->next; ++ } ++ preempt_enable(); ++ return (obj->mode & GR_FIND) ? 1 : 0; ++} ++ ++#ifdef CONFIG_NETFILTER_XT_MATCH_GRADM_MODULE ++EXPORT_SYMBOL(gr_acl_is_enabled); ++#endif ++EXPORT_SYMBOL(gr_learn_resource); ++EXPORT_SYMBOL(gr_set_kernel_label); ++#ifdef CONFIG_SECURITY ++EXPORT_SYMBOL(gr_check_user_change); ++EXPORT_SYMBOL(gr_check_group_change); ++#endif ++ +diff --git a/grsecurity/gracl_alloc.c b/grsecurity/gracl_alloc.c +new file mode 100644 +index 0000000..34fefda +--- /dev/null ++++ b/grsecurity/gracl_alloc.c +@@ -0,0 +1,105 @@ ++#include <linux/kernel.h> ++#include <linux/mm.h> ++#include <linux/slab.h> ++#include <linux/vmalloc.h> ++#include <linux/gracl.h> ++#include <linux/grsecurity.h> ++ ++static unsigned long alloc_stack_next = 1; ++static unsigned long alloc_stack_size = 1; ++static void **alloc_stack; ++ ++static __inline__ int ++alloc_pop(void) ++{ ++ if (alloc_stack_next == 1) ++ return 0; ++ ++ kfree(alloc_stack[alloc_stack_next - 2]); ++ ++ alloc_stack_next--; ++ ++ return 1; ++} ++ ++static __inline__ int ++alloc_push(void *buf) ++{ ++ if (alloc_stack_next >= alloc_stack_size) ++ return 1; ++ ++ alloc_stack[alloc_stack_next - 1] = buf; ++ ++ alloc_stack_next++; ++ ++ return 0; ++} ++ ++void * ++acl_alloc(unsigned long len) ++{ ++ void *ret = NULL; ++ ++ if (!len || len > PAGE_SIZE) ++ goto out; ++ ++ ret = kmalloc(len, GFP_KERNEL); ++ ++ if (ret) { ++ if (alloc_push(ret)) { ++ kfree(ret); ++ ret = NULL; ++ } ++ } ++ ++out: ++ return ret; ++} ++ ++void * ++acl_alloc_num(unsigned long num, unsigned long len) ++{ ++ if (!len || (num > (PAGE_SIZE / len))) ++ return NULL; ++ ++ return acl_alloc(num * len); ++} ++ ++void ++acl_free_all(void) ++{ ++ if (gr_acl_is_enabled() || !alloc_stack) ++ return; ++ ++ while (alloc_pop()) ; ++ ++ if (alloc_stack) { ++ if ((alloc_stack_size * sizeof (void *)) <= PAGE_SIZE) ++ kfree(alloc_stack); ++ else ++ vfree(alloc_stack); ++ } ++ ++ alloc_stack = NULL; ++ alloc_stack_size = 1; ++ alloc_stack_next = 1; ++ ++ return; ++} ++ ++int ++acl_alloc_stack_init(unsigned long size) ++{ ++ if ((size * sizeof (void *)) <= PAGE_SIZE) ++ alloc_stack = ++ (void **) kmalloc(size * sizeof (void *), GFP_KERNEL); ++ else ++ alloc_stack = (void **) vmalloc(size * sizeof (void *)); ++ ++ alloc_stack_size = size; ++ ++ if (!alloc_stack) ++ return 0; ++ else ++ return 1; ++} +diff --git a/grsecurity/gracl_cap.c b/grsecurity/gracl_cap.c +new file mode 100644 +index 0000000..6d21049 +--- /dev/null ++++ b/grsecurity/gracl_cap.c +@@ -0,0 +1,110 @@ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/sched.h> ++#include <linux/gracl.h> ++#include <linux/grsecurity.h> ++#include <linux/grinternal.h> ++ ++extern const char *captab_log[]; ++extern int captab_log_entries; ++ ++int gr_task_acl_is_capable(const struct task_struct *task, const struct cred *cred, const int cap) ++{ ++ struct acl_subject_label *curracl; ++ kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set; ++ kernel_cap_t cap_audit = __cap_empty_set; ++ ++ if (!gr_acl_is_enabled()) ++ return 1; ++ ++ curracl = task->acl; ++ ++ cap_drop = curracl->cap_lower; ++ cap_mask = curracl->cap_mask; ++ cap_audit = curracl->cap_invert_audit; ++ ++ while ((curracl = curracl->parent_subject)) { ++ /* if the cap isn't specified in the current computed mask but is specified in the ++ current level subject, and is lowered in the current level subject, then add ++ it to the set of dropped capabilities ++ otherwise, add the current level subject's mask to the current computed mask ++ */ ++ if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) { ++ cap_raise(cap_mask, cap); ++ if (cap_raised(curracl->cap_lower, cap)) ++ cap_raise(cap_drop, cap); ++ if (cap_raised(curracl->cap_invert_audit, cap)) ++ cap_raise(cap_audit, cap); ++ } ++ } ++ ++ if (!cap_raised(cap_drop, cap)) { ++ if (cap_raised(cap_audit, cap)) ++ gr_log_cap(GR_DO_AUDIT, GR_CAP_ACL_MSG2, task, captab_log[cap]); ++ return 1; ++ } ++ ++ curracl = task->acl; ++ ++ if ((curracl->mode & (GR_LEARN | GR_INHERITLEARN)) ++ && cap_raised(cred->cap_effective, cap)) { ++ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, ++ task->role->roletype, cred->uid, ++ cred->gid, task->exec_file ? ++ gr_to_filename(task->exec_file->f_path.dentry, ++ task->exec_file->f_path.mnt) : curracl->filename, ++ curracl->filename, 0UL, ++ 0UL, "", (unsigned long) cap, &task->signal->saved_ip); ++ return 1; ++ } ++ ++ if ((cap >= 0) && (cap < captab_log_entries) && cap_raised(cred->cap_effective, cap) && !cap_raised(cap_audit, cap)) ++ gr_log_cap(GR_DONT_AUDIT, GR_CAP_ACL_MSG, task, captab_log[cap]); ++ ++ return 0; ++} ++ ++int ++gr_acl_is_capable(const int cap) ++{ ++ return gr_task_acl_is_capable(current, current_cred(), cap); ++} ++ ++int gr_task_acl_is_capable_nolog(const struct task_struct *task, const int cap) ++{ ++ struct acl_subject_label *curracl; ++ kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set; ++ ++ if (!gr_acl_is_enabled()) ++ return 1; ++ ++ curracl = task->acl; ++ ++ cap_drop = curracl->cap_lower; ++ cap_mask = curracl->cap_mask; ++ ++ while ((curracl = curracl->parent_subject)) { ++ /* if the cap isn't specified in the current computed mask but is specified in the ++ current level subject, and is lowered in the current level subject, then add ++ it to the set of dropped capabilities ++ otherwise, add the current level subject's mask to the current computed mask ++ */ ++ if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) { ++ cap_raise(cap_mask, cap); ++ if (cap_raised(curracl->cap_lower, cap)) ++ cap_raise(cap_drop, cap); ++ } ++ } ++ ++ if (!cap_raised(cap_drop, cap)) ++ return 1; ++ ++ return 0; ++} ++ ++int ++gr_acl_is_capable_nolog(const int cap) ++{ ++ return gr_task_acl_is_capable_nolog(current, cap); ++} ++ +diff --git a/grsecurity/gracl_fs.c b/grsecurity/gracl_fs.c +new file mode 100644 +index 0000000..88d0e87 +--- /dev/null ++++ b/grsecurity/gracl_fs.c +@@ -0,0 +1,435 @@ ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/types.h> ++#include <linux/fs.h> ++#include <linux/file.h> ++#include <linux/stat.h> ++#include <linux/grsecurity.h> ++#include <linux/grinternal.h> ++#include <linux/gracl.h> ++ ++umode_t ++gr_acl_umask(void) ++{ ++ if (unlikely(!gr_acl_is_enabled())) ++ return 0; ++ ++ return current->role->umask; ++} ++ ++__u32 ++gr_acl_handle_hidden_file(const struct dentry * dentry, ++ const struct vfsmount * mnt) ++{ ++ __u32 mode; ++ ++ if (unlikely(!dentry->d_inode)) ++ return GR_FIND; ++ ++ mode = ++ gr_search_file(dentry, GR_FIND | GR_AUDIT_FIND | GR_SUPPRESS, mnt); ++ ++ if (unlikely(mode & GR_FIND && mode & GR_AUDIT_FIND)) { ++ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt); ++ return mode; ++ } else if (unlikely(!(mode & GR_FIND) && !(mode & GR_SUPPRESS))) { ++ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt); ++ return 0; ++ } else if (unlikely(!(mode & GR_FIND))) ++ return 0; ++ ++ return GR_FIND; ++} ++ ++__u32 ++gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt, ++ int acc_mode) ++{ ++ __u32 reqmode = GR_FIND; ++ __u32 mode; ++ ++ if (unlikely(!dentry->d_inode)) ++ return reqmode; ++ ++ if (acc_mode & MAY_APPEND) ++ reqmode |= GR_APPEND; ++ else if (acc_mode & MAY_WRITE) ++ reqmode |= GR_WRITE; ++ if ((acc_mode & MAY_READ) && !S_ISDIR(dentry->d_inode->i_mode)) ++ reqmode |= GR_READ; ++ ++ mode = ++ gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS, ++ mnt); ++ ++ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) { ++ gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt, ++ reqmode & GR_READ ? " reading" : "", ++ reqmode & GR_WRITE ? " writing" : reqmode & ++ GR_APPEND ? " appending" : ""); ++ return reqmode; ++ } else ++ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS))) ++ { ++ gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt, ++ reqmode & GR_READ ? " reading" : "", ++ reqmode & GR_WRITE ? " writing" : reqmode & ++ GR_APPEND ? " appending" : ""); ++ return 0; ++ } else if (unlikely((mode & reqmode) != reqmode)) ++ return 0; ++ ++ return reqmode; ++} ++ ++__u32 ++gr_acl_handle_creat(const struct dentry * dentry, ++ const struct dentry * p_dentry, ++ const struct vfsmount * p_mnt, int open_flags, int acc_mode, ++ const int imode) ++{ ++ __u32 reqmode = GR_WRITE | GR_CREATE; ++ __u32 mode; ++ ++ if (acc_mode & MAY_APPEND) ++ reqmode |= GR_APPEND; ++ // if a directory was required or the directory already exists, then ++ // don't count this open as a read ++ if ((acc_mode & MAY_READ) && ++ !((open_flags & O_DIRECTORY) || (dentry->d_inode && S_ISDIR(dentry->d_inode->i_mode)))) ++ reqmode |= GR_READ; ++ if ((open_flags & O_CREAT) && (imode & (S_ISUID | S_ISGID))) ++ reqmode |= GR_SETID; ++ ++ mode = ++ gr_check_create(dentry, p_dentry, p_mnt, ++ reqmode | to_gr_audit(reqmode) | GR_SUPPRESS); ++ ++ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) { ++ gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt, ++ reqmode & GR_READ ? " reading" : "", ++ reqmode & GR_WRITE ? " writing" : reqmode & ++ GR_APPEND ? " appending" : ""); ++ return reqmode; ++ } else ++ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS))) ++ { ++ gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt, ++ reqmode & GR_READ ? " reading" : "", ++ reqmode & GR_WRITE ? " writing" : reqmode & ++ GR_APPEND ? " appending" : ""); ++ return 0; ++ } else if (unlikely((mode & reqmode) != reqmode)) ++ return 0; ++ ++ return reqmode; ++} ++ ++__u32 ++gr_acl_handle_access(const struct dentry * dentry, const struct vfsmount * mnt, ++ const int fmode) ++{ ++ __u32 mode, reqmode = GR_FIND; ++ ++ if ((fmode & S_IXOTH) && !S_ISDIR(dentry->d_inode->i_mode)) ++ reqmode |= GR_EXEC; ++ if (fmode & S_IWOTH) ++ reqmode |= GR_WRITE; ++ if (fmode & S_IROTH) ++ reqmode |= GR_READ; ++ ++ mode = ++ gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS, ++ mnt); ++ ++ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) { ++ gr_log_fs_rbac_mode3(GR_DO_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt, ++ reqmode & GR_READ ? " reading" : "", ++ reqmode & GR_WRITE ? " writing" : "", ++ reqmode & GR_EXEC ? " executing" : ""); ++ return reqmode; ++ } else ++ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS))) ++ { ++ gr_log_fs_rbac_mode3(GR_DONT_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt, ++ reqmode & GR_READ ? " reading" : "", ++ reqmode & GR_WRITE ? " writing" : "", ++ reqmode & GR_EXEC ? " executing" : ""); ++ return 0; ++ } else if (unlikely((mode & reqmode) != reqmode)) ++ return 0; ++ ++ return reqmode; ++} ++ ++static __u32 generic_fs_handler(const struct dentry *dentry, const struct vfsmount *mnt, __u32 reqmode, const char *fmt) ++{ ++ __u32 mode; ++ ++ mode = gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS, mnt); ++ ++ if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) { ++ gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, dentry, mnt); ++ return mode; ++ } else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) { ++ gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, dentry, mnt); ++ return 0; ++ } else if (unlikely((mode & (reqmode)) != (reqmode))) ++ return 0; ++ ++ return (reqmode); ++} ++ ++__u32 ++gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt) ++{ ++ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_RMDIR_ACL_MSG); ++} ++ ++__u32 ++gr_acl_handle_unlink(const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_UNLINK_ACL_MSG); ++} ++ ++__u32 ++gr_acl_handle_truncate(const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_TRUNCATE_ACL_MSG); ++} ++ ++__u32 ++gr_acl_handle_utime(const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_ATIME_ACL_MSG); ++} ++ ++__u32 ++gr_acl_handle_chmod(const struct dentry *dentry, const struct vfsmount *mnt, ++ umode_t *modeptr) ++{ ++ umode_t mode; ++ ++ *modeptr &= ~gr_acl_umask(); ++ mode = *modeptr; ++ ++ if (unlikely(dentry->d_inode && S_ISSOCK(dentry->d_inode->i_mode))) ++ return 1; ++ ++ if (unlikely(mode & (S_ISUID | S_ISGID))) { ++ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_SETID, ++ GR_CHMOD_ACL_MSG); ++ } else { ++ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHMOD_ACL_MSG); ++ } ++} ++ ++__u32 ++gr_acl_handle_chown(const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHOWN_ACL_MSG); ++} ++ ++__u32 ++gr_acl_handle_setxattr(const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_SETXATTR_ACL_MSG); ++} ++ ++__u32 ++gr_acl_handle_execve(const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++ return generic_fs_handler(dentry, mnt, GR_EXEC, GR_EXEC_ACL_MSG); ++} ++ ++__u32 ++gr_acl_handle_unix(const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++ return generic_fs_handler(dentry, mnt, GR_READ | GR_WRITE, ++ GR_UNIXCONNECT_ACL_MSG); ++} ++ ++/* hardlinks require at minimum create and link permission, ++ any additional privilege required is based on the ++ privilege of the file being linked to ++*/ ++__u32 ++gr_acl_handle_link(const struct dentry * new_dentry, ++ const struct dentry * parent_dentry, ++ const struct vfsmount * parent_mnt, ++ const struct dentry * old_dentry, ++ const struct vfsmount * old_mnt, const char *to) ++{ ++ __u32 mode; ++ __u32 needmode = GR_CREATE | GR_LINK; ++ __u32 needaudit = GR_AUDIT_CREATE | GR_AUDIT_LINK; ++ ++ mode = ++ gr_check_link(new_dentry, parent_dentry, parent_mnt, old_dentry, ++ old_mnt); ++ ++ if (unlikely(((mode & needmode) == needmode) && (mode & needaudit))) { ++ gr_log_fs_rbac_str(GR_DO_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to); ++ return mode; ++ } else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) { ++ gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to); ++ return 0; ++ } else if (unlikely((mode & needmode) != needmode)) ++ return 0; ++ ++ return 1; ++} ++ ++__u32 ++gr_acl_handle_symlink(const struct dentry * new_dentry, ++ const struct dentry * parent_dentry, ++ const struct vfsmount * parent_mnt, const char *from) ++{ ++ __u32 needmode = GR_WRITE | GR_CREATE; ++ __u32 mode; ++ ++ mode = ++ gr_check_create(new_dentry, parent_dentry, parent_mnt, ++ GR_CREATE | GR_AUDIT_CREATE | ++ GR_WRITE | GR_AUDIT_WRITE | GR_SUPPRESS); ++ ++ if (unlikely(mode & GR_WRITE && mode & GR_AUDITS)) { ++ gr_log_fs_str_rbac(GR_DO_AUDIT, GR_SYMLINK_ACL_MSG, from, new_dentry, parent_mnt); ++ return mode; ++ } else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) { ++ gr_log_fs_str_rbac(GR_DONT_AUDIT, GR_SYMLINK_ACL_MSG, from, new_dentry, parent_mnt); ++ return 0; ++ } else if (unlikely((mode & needmode) != needmode)) ++ return 0; ++ ++ return (GR_WRITE | GR_CREATE); ++} ++ ++static __u32 generic_fs_create_handler(const struct dentry *new_dentry, const struct dentry *parent_dentry, const struct vfsmount *parent_mnt, __u32 reqmode, const char *fmt) ++{ ++ __u32 mode; ++ ++ mode = gr_check_create(new_dentry, parent_dentry, parent_mnt, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS); ++ ++ if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) { ++ gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, new_dentry, parent_mnt); ++ return mode; ++ } else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) { ++ gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, new_dentry, parent_mnt); ++ return 0; ++ } else if (unlikely((mode & (reqmode)) != (reqmode))) ++ return 0; ++ ++ return (reqmode); ++} ++ ++__u32 ++gr_acl_handle_mknod(const struct dentry * new_dentry, ++ const struct dentry * parent_dentry, ++ const struct vfsmount * parent_mnt, ++ const int mode) ++{ ++ __u32 reqmode = GR_WRITE | GR_CREATE; ++ if (unlikely(mode & (S_ISUID | S_ISGID))) ++ reqmode |= GR_SETID; ++ ++ return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt, ++ reqmode, GR_MKNOD_ACL_MSG); ++} ++ ++__u32 ++gr_acl_handle_mkdir(const struct dentry *new_dentry, ++ const struct dentry *parent_dentry, ++ const struct vfsmount *parent_mnt) ++{ ++ return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt, ++ GR_WRITE | GR_CREATE, GR_MKDIR_ACL_MSG); ++} ++ ++#define RENAME_CHECK_SUCCESS(old, new) \ ++ (((old & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)) && \ ++ ((new & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ))) ++ ++int ++gr_acl_handle_rename(struct dentry *new_dentry, ++ struct dentry *parent_dentry, ++ const struct vfsmount *parent_mnt, ++ struct dentry *old_dentry, ++ struct inode *old_parent_inode, ++ struct vfsmount *old_mnt, const char *newname) ++{ ++ __u32 comp1, comp2; ++ int error = 0; ++ ++ if (unlikely(!gr_acl_is_enabled())) ++ return 0; ++ ++ if (!new_dentry->d_inode) { ++ comp1 = gr_check_create(new_dentry, parent_dentry, parent_mnt, ++ GR_READ | GR_WRITE | GR_CREATE | GR_AUDIT_READ | ++ GR_AUDIT_WRITE | GR_AUDIT_CREATE | GR_SUPPRESS); ++ comp2 = gr_search_file(old_dentry, GR_READ | GR_WRITE | ++ GR_DELETE | GR_AUDIT_DELETE | ++ GR_AUDIT_READ | GR_AUDIT_WRITE | ++ GR_SUPPRESS, old_mnt); ++ } else { ++ comp1 = gr_search_file(new_dentry, GR_READ | GR_WRITE | ++ GR_CREATE | GR_DELETE | ++ GR_AUDIT_CREATE | GR_AUDIT_DELETE | ++ GR_AUDIT_READ | GR_AUDIT_WRITE | ++ GR_SUPPRESS, parent_mnt); ++ comp2 = ++ gr_search_file(old_dentry, ++ GR_READ | GR_WRITE | GR_AUDIT_READ | ++ GR_DELETE | GR_AUDIT_DELETE | ++ GR_AUDIT_WRITE | GR_SUPPRESS, old_mnt); ++ } ++ ++ if (RENAME_CHECK_SUCCESS(comp1, comp2) && ++ ((comp1 & GR_AUDITS) || (comp2 & GR_AUDITS))) ++ gr_log_fs_rbac_str(GR_DO_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname); ++ else if (!RENAME_CHECK_SUCCESS(comp1, comp2) && !(comp1 & GR_SUPPRESS) ++ && !(comp2 & GR_SUPPRESS)) { ++ gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname); ++ error = -EACCES; ++ } else if (unlikely(!RENAME_CHECK_SUCCESS(comp1, comp2))) ++ error = -EACCES; ++ ++ return error; ++} ++ ++void ++gr_acl_handle_exit(void) ++{ ++ u16 id; ++ char *rolename; ++ struct file *exec_file; ++ ++ if (unlikely(current->acl_sp_role && gr_acl_is_enabled() && ++ !(current->role->roletype & GR_ROLE_PERSIST))) { ++ id = current->acl_role_id; ++ rolename = current->role->rolename; ++ gr_set_acls(1); ++ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLEL_ACL_MSG, rolename, id); ++ } ++ ++ write_lock(&grsec_exec_file_lock); ++ exec_file = current->exec_file; ++ current->exec_file = NULL; ++ write_unlock(&grsec_exec_file_lock); ++ ++ if (exec_file) ++ fput(exec_file); ++} ++ ++int ++gr_acl_handle_procpidmem(const struct task_struct *task) ++{ ++ if (unlikely(!gr_acl_is_enabled())) ++ return 0; ++ ++ if (task != current && task->acl->mode & GR_PROTPROCFD) ++ return -EACCES; ++ ++ return 0; ++} +diff --git a/grsecurity/gracl_ip.c b/grsecurity/gracl_ip.c +new file mode 100644 +index 0000000..58800a7 +--- /dev/null ++++ b/grsecurity/gracl_ip.c +@@ -0,0 +1,384 @@ ++#include <linux/kernel.h> ++#include <asm/uaccess.h> ++#include <asm/errno.h> ++#include <net/sock.h> ++#include <linux/file.h> ++#include <linux/fs.h> ++#include <linux/net.h> ++#include <linux/in.h> ++#include <linux/skbuff.h> ++#include <linux/ip.h> ++#include <linux/udp.h> ++#include <linux/types.h> ++#include <linux/sched.h> ++#include <linux/netdevice.h> ++#include <linux/inetdevice.h> ++#include <linux/gracl.h> ++#include <linux/grsecurity.h> ++#include <linux/grinternal.h> ++ ++#define GR_BIND 0x01 ++#define GR_CONNECT 0x02 ++#define GR_INVERT 0x04 ++#define GR_BINDOVERRIDE 0x08 ++#define GR_CONNECTOVERRIDE 0x10 ++#define GR_SOCK_FAMILY 0x20 ++ ++static const char * gr_protocols[IPPROTO_MAX] = { ++ "ip", "icmp", "igmp", "ggp", "ipencap", "st", "tcp", "cbt", ++ "egp", "igp", "bbn-rcc", "nvp", "pup", "argus", "emcon", "xnet", ++ "chaos", "udp", "mux", "dcn", "hmp", "prm", "xns-idp", "trunk-1", ++ "trunk-2", "leaf-1", "leaf-2", "rdp", "irtp", "iso-tp4", "netblt", "mfe-nsp", ++ "merit-inp", "sep", "3pc", "idpr", "xtp", "ddp", "idpr-cmtp", "tp++", ++ "il", "ipv6", "sdrp", "ipv6-route", "ipv6-frag", "idrp", "rsvp", "gre", ++ "mhrp", "bna", "ipv6-crypt", "ipv6-auth", "i-nlsp", "swipe", "narp", "mobile", ++ "tlsp", "skip", "ipv6-icmp", "ipv6-nonxt", "ipv6-opts", "unknown:61", "cftp", "unknown:63", ++ "sat-expak", "kryptolan", "rvd", "ippc", "unknown:68", "sat-mon", "visa", "ipcv", ++ "cpnx", "cphb", "wsn", "pvp", "br-sat-mon", "sun-nd", "wb-mon", "wb-expak", ++ "iso-ip", "vmtp", "secure-vmtp", "vines", "ttp", "nfsnet-igp", "dgp", "tcf", ++ "eigrp", "ospf", "sprite-rpc", "larp", "mtp", "ax.25", "ipip", "micp", ++ "scc-sp", "etherip", "encap", "unknown:99", "gmtp", "ifmp", "pnni", "pim", ++ "aris", "scps", "qnx", "a/n", "ipcomp", "snp", "compaq-peer", "ipx-in-ip", ++ "vrrp", "pgm", "unknown:114", "l2tp", "ddx", "iatp", "stp", "srp", ++ "uti", "smp", "sm", "ptp", "isis", "fire", "crtp", "crdup", ++ "sscopmce", "iplt", "sps", "pipe", "sctp", "fc", "unkown:134", "unknown:135", ++ "unknown:136", "unknown:137", "unknown:138", "unknown:139", "unknown:140", "unknown:141", "unknown:142", "unknown:143", ++ "unknown:144", "unknown:145", "unknown:146", "unknown:147", "unknown:148", "unknown:149", "unknown:150", "unknown:151", ++ "unknown:152", "unknown:153", "unknown:154", "unknown:155", "unknown:156", "unknown:157", "unknown:158", "unknown:159", ++ "unknown:160", "unknown:161", "unknown:162", "unknown:163", "unknown:164", "unknown:165", "unknown:166", "unknown:167", ++ "unknown:168", "unknown:169", "unknown:170", "unknown:171", "unknown:172", "unknown:173", "unknown:174", "unknown:175", ++ "unknown:176", "unknown:177", "unknown:178", "unknown:179", "unknown:180", "unknown:181", "unknown:182", "unknown:183", ++ "unknown:184", "unknown:185", "unknown:186", "unknown:187", "unknown:188", "unknown:189", "unknown:190", "unknown:191", ++ "unknown:192", "unknown:193", "unknown:194", "unknown:195", "unknown:196", "unknown:197", "unknown:198", "unknown:199", ++ "unknown:200", "unknown:201", "unknown:202", "unknown:203", "unknown:204", "unknown:205", "unknown:206", "unknown:207", ++ "unknown:208", "unknown:209", "unknown:210", "unknown:211", "unknown:212", "unknown:213", "unknown:214", "unknown:215", ++ "unknown:216", "unknown:217", "unknown:218", "unknown:219", "unknown:220", "unknown:221", "unknown:222", "unknown:223", ++ "unknown:224", "unknown:225", "unknown:226", "unknown:227", "unknown:228", "unknown:229", "unknown:230", "unknown:231", ++ "unknown:232", "unknown:233", "unknown:234", "unknown:235", "unknown:236", "unknown:237", "unknown:238", "unknown:239", ++ "unknown:240", "unknown:241", "unknown:242", "unknown:243", "unknown:244", "unknown:245", "unknown:246", "unknown:247", ++ "unknown:248", "unknown:249", "unknown:250", "unknown:251", "unknown:252", "unknown:253", "unknown:254", "unknown:255", ++ }; ++ ++static const char * gr_socktypes[SOCK_MAX] = { ++ "unknown:0", "stream", "dgram", "raw", "rdm", "seqpacket", "unknown:6", ++ "unknown:7", "unknown:8", "unknown:9", "packet" ++ }; ++ ++static const char * gr_sockfamilies[AF_MAX+1] = { ++ "unspec", "unix", "inet", "ax25", "ipx", "appletalk", "netrom", "bridge", "atmpvc", "x25", ++ "inet6", "rose", "decnet", "netbeui", "security", "key", "netlink", "packet", "ash", ++ "econet", "atmsvc", "rds", "sna", "irda", "ppox", "wanpipe", "llc", "fam_27", "fam_28", ++ "tipc", "bluetooth", "iucv", "rxrpc", "isdn", "phonet", "ieee802154", "ciaf" ++ }; ++ ++const char * ++gr_proto_to_name(unsigned char proto) ++{ ++ return gr_protocols[proto]; ++} ++ ++const char * ++gr_socktype_to_name(unsigned char type) ++{ ++ return gr_socktypes[type]; ++} ++ ++const char * ++gr_sockfamily_to_name(unsigned char family) ++{ ++ return gr_sockfamilies[family]; ++} ++ ++int ++gr_search_socket(const int domain, const int type, const int protocol) ++{ ++ struct acl_subject_label *curr; ++ const struct cred *cred = current_cred(); ++ ++ if (unlikely(!gr_acl_is_enabled())) ++ goto exit; ++ ++ if ((domain < 0) || (type < 0) || (protocol < 0) || ++ (domain >= AF_MAX) || (type >= SOCK_MAX) || (protocol >= IPPROTO_MAX)) ++ goto exit; // let the kernel handle it ++ ++ curr = current->acl; ++ ++ if (curr->sock_families[domain / 32] & (1 << (domain % 32))) { ++ /* the family is allowed, if this is PF_INET allow it only if ++ the extra sock type/protocol checks pass */ ++ if (domain == PF_INET) ++ goto inet_check; ++ goto exit; ++ } else { ++ if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) { ++ __u32 fakeip = 0; ++ security_learn(GR_IP_LEARN_MSG, current->role->rolename, ++ current->role->roletype, cred->uid, ++ cred->gid, current->exec_file ? ++ gr_to_filename(current->exec_file->f_path.dentry, ++ current->exec_file->f_path.mnt) : ++ curr->filename, curr->filename, ++ &fakeip, domain, 0, 0, GR_SOCK_FAMILY, ++ &current->signal->saved_ip); ++ goto exit; ++ } ++ goto exit_fail; ++ } ++ ++inet_check: ++ /* the rest of this checking is for IPv4 only */ ++ if (!curr->ips) ++ goto exit; ++ ++ if ((curr->ip_type & (1 << type)) && ++ (curr->ip_proto[protocol / 32] & (1 << (protocol % 32)))) ++ goto exit; ++ ++ if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) { ++ /* we don't place acls on raw sockets , and sometimes ++ dgram/ip sockets are opened for ioctl and not ++ bind/connect, so we'll fake a bind learn log */ ++ if (type == SOCK_RAW || type == SOCK_PACKET) { ++ __u32 fakeip = 0; ++ security_learn(GR_IP_LEARN_MSG, current->role->rolename, ++ current->role->roletype, cred->uid, ++ cred->gid, current->exec_file ? ++ gr_to_filename(current->exec_file->f_path.dentry, ++ current->exec_file->f_path.mnt) : ++ curr->filename, curr->filename, ++ &fakeip, 0, type, ++ protocol, GR_CONNECT, &current->signal->saved_ip); ++ } else if ((type == SOCK_DGRAM) && (protocol == IPPROTO_IP)) { ++ __u32 fakeip = 0; ++ security_learn(GR_IP_LEARN_MSG, current->role->rolename, ++ current->role->roletype, cred->uid, ++ cred->gid, current->exec_file ? ++ gr_to_filename(current->exec_file->f_path.dentry, ++ current->exec_file->f_path.mnt) : ++ curr->filename, curr->filename, ++ &fakeip, 0, type, ++ protocol, GR_BIND, &current->signal->saved_ip); ++ } ++ /* we'll log when they use connect or bind */ ++ goto exit; ++ } ++ ++exit_fail: ++ if (domain == PF_INET) ++ gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, gr_sockfamily_to_name(domain), ++ gr_socktype_to_name(type), gr_proto_to_name(protocol)); ++ else ++ gr_log_str2_int(GR_DONT_AUDIT, GR_SOCK_NOINET_MSG, gr_sockfamily_to_name(domain), ++ gr_socktype_to_name(type), protocol); ++ ++ return 0; ++exit: ++ return 1; ++} ++ ++int check_ip_policy(struct acl_ip_label *ip, __u32 ip_addr, __u16 ip_port, __u8 protocol, const int mode, const int type, __u32 our_addr, __u32 our_netmask) ++{ ++ if ((ip->mode & mode) && ++ (ip_port >= ip->low) && ++ (ip_port <= ip->high) && ++ ((ntohl(ip_addr) & our_netmask) == ++ (ntohl(our_addr) & our_netmask)) ++ && (ip->proto[protocol / 32] & (1 << (protocol % 32))) ++ && (ip->type & (1 << type))) { ++ if (ip->mode & GR_INVERT) ++ return 2; // specifically denied ++ else ++ return 1; // allowed ++ } ++ ++ return 0; // not specifically allowed, may continue parsing ++} ++ ++static int ++gr_search_connectbind(const int full_mode, struct sock *sk, ++ struct sockaddr_in *addr, const int type) ++{ ++ char iface[IFNAMSIZ] = {0}; ++ struct acl_subject_label *curr; ++ struct acl_ip_label *ip; ++ struct inet_sock *isk; ++ struct net_device *dev; ++ struct in_device *idev; ++ unsigned long i; ++ int ret; ++ int mode = full_mode & (GR_BIND | GR_CONNECT); ++ __u32 ip_addr = 0; ++ __u32 our_addr; ++ __u32 our_netmask; ++ char *p; ++ __u16 ip_port = 0; ++ const struct cred *cred = current_cred(); ++ ++ if (unlikely(!gr_acl_is_enabled() || sk->sk_family != PF_INET)) ++ return 0; ++ ++ curr = current->acl; ++ isk = inet_sk(sk); ++ ++ /* INADDR_ANY overriding for binds, inaddr_any_override is already in network order */ ++ if ((full_mode & GR_BINDOVERRIDE) && addr->sin_addr.s_addr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0) ++ addr->sin_addr.s_addr = curr->inaddr_any_override; ++ if ((full_mode & GR_CONNECT) && isk->inet_saddr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0) { ++ struct sockaddr_in saddr; ++ int err; ++ ++ saddr.sin_family = AF_INET; ++ saddr.sin_addr.s_addr = curr->inaddr_any_override; ++ saddr.sin_port = isk->inet_sport; ++ ++ err = security_socket_bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in)); ++ if (err) ++ return err; ++ ++ err = sk->sk_socket->ops->bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in)); ++ if (err) ++ return err; ++ } ++ ++ if (!curr->ips) ++ return 0; ++ ++ ip_addr = addr->sin_addr.s_addr; ++ ip_port = ntohs(addr->sin_port); ++ ++ if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) { ++ security_learn(GR_IP_LEARN_MSG, current->role->rolename, ++ current->role->roletype, cred->uid, ++ cred->gid, current->exec_file ? ++ gr_to_filename(current->exec_file->f_path.dentry, ++ current->exec_file->f_path.mnt) : ++ curr->filename, curr->filename, ++ &ip_addr, ip_port, type, ++ sk->sk_protocol, mode, &current->signal->saved_ip); ++ return 0; ++ } ++ ++ for (i = 0; i < curr->ip_num; i++) { ++ ip = *(curr->ips + i); ++ if (ip->iface != NULL) { ++ strncpy(iface, ip->iface, IFNAMSIZ - 1); ++ p = strchr(iface, ':'); ++ if (p != NULL) ++ *p = '\0'; ++ dev = dev_get_by_name(sock_net(sk), iface); ++ if (dev == NULL) ++ continue; ++ idev = in_dev_get(dev); ++ if (idev == NULL) { ++ dev_put(dev); ++ continue; ++ } ++ rcu_read_lock(); ++ for_ifa(idev) { ++ if (!strcmp(ip->iface, ifa->ifa_label)) { ++ our_addr = ifa->ifa_address; ++ our_netmask = 0xffffffff; ++ ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask); ++ if (ret == 1) { ++ rcu_read_unlock(); ++ in_dev_put(idev); ++ dev_put(dev); ++ return 0; ++ } else if (ret == 2) { ++ rcu_read_unlock(); ++ in_dev_put(idev); ++ dev_put(dev); ++ goto denied; ++ } ++ } ++ } endfor_ifa(idev); ++ rcu_read_unlock(); ++ in_dev_put(idev); ++ dev_put(dev); ++ } else { ++ our_addr = ip->addr; ++ our_netmask = ip->netmask; ++ ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask); ++ if (ret == 1) ++ return 0; ++ else if (ret == 2) ++ goto denied; ++ } ++ } ++ ++denied: ++ if (mode == GR_BIND) ++ gr_log_int5_str2(GR_DONT_AUDIT, GR_BIND_ACL_MSG, &ip_addr, ip_port, gr_socktype_to_name(type), gr_proto_to_name(sk->sk_protocol)); ++ else if (mode == GR_CONNECT) ++ gr_log_int5_str2(GR_DONT_AUDIT, GR_CONNECT_ACL_MSG, &ip_addr, ip_port, gr_socktype_to_name(type), gr_proto_to_name(sk->sk_protocol)); ++ ++ return -EACCES; ++} ++ ++int ++gr_search_connect(struct socket *sock, struct sockaddr_in *addr) ++{ ++ /* always allow disconnection of dgram sockets with connect */ ++ if (addr->sin_family == AF_UNSPEC) ++ return 0; ++ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sock->sk, addr, sock->type); ++} ++ ++int ++gr_search_bind(struct socket *sock, struct sockaddr_in *addr) ++{ ++ return gr_search_connectbind(GR_BIND | GR_BINDOVERRIDE, sock->sk, addr, sock->type); ++} ++ ++int gr_search_listen(struct socket *sock) ++{ ++ struct sock *sk = sock->sk; ++ struct sockaddr_in addr; ++ ++ addr.sin_addr.s_addr = inet_sk(sk)->inet_saddr; ++ addr.sin_port = inet_sk(sk)->inet_sport; ++ ++ return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type); ++} ++ ++int gr_search_accept(struct socket *sock) ++{ ++ struct sock *sk = sock->sk; ++ struct sockaddr_in addr; ++ ++ addr.sin_addr.s_addr = inet_sk(sk)->inet_saddr; ++ addr.sin_port = inet_sk(sk)->inet_sport; ++ ++ return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type); ++} ++ ++int ++gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr) ++{ ++ if (addr) ++ return gr_search_connectbind(GR_CONNECT, sk, addr, SOCK_DGRAM); ++ else { ++ struct sockaddr_in sin; ++ const struct inet_sock *inet = inet_sk(sk); ++ ++ sin.sin_addr.s_addr = inet->inet_daddr; ++ sin.sin_port = inet->inet_dport; ++ ++ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM); ++ } ++} ++ ++int ++gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb) ++{ ++ struct sockaddr_in sin; ++ ++ if (unlikely(skb->len < sizeof (struct udphdr))) ++ return 0; // skip this packet ++ ++ sin.sin_addr.s_addr = ip_hdr(skb)->saddr; ++ sin.sin_port = udp_hdr(skb)->source; ++ ++ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM); ++} +diff --git a/grsecurity/gracl_learn.c b/grsecurity/gracl_learn.c +new file mode 100644 +index 0000000..25f54ef +--- /dev/null ++++ b/grsecurity/gracl_learn.c +@@ -0,0 +1,207 @@ ++#include <linux/kernel.h> ++#include <linux/mm.h> ++#include <linux/sched.h> ++#include <linux/poll.h> ++#include <linux/string.h> ++#include <linux/file.h> ++#include <linux/types.h> ++#include <linux/vmalloc.h> ++#include <linux/grinternal.h> ++ ++extern ssize_t write_grsec_handler(struct file * file, const char __user * buf, ++ size_t count, loff_t *ppos); ++extern int gr_acl_is_enabled(void); ++ ++static DECLARE_WAIT_QUEUE_HEAD(learn_wait); ++static int gr_learn_attached; ++ ++/* use a 512k buffer */ ++#define LEARN_BUFFER_SIZE (512 * 1024) ++ ++static DEFINE_SPINLOCK(gr_learn_lock); ++static DEFINE_MUTEX(gr_learn_user_mutex); ++ ++/* we need to maintain two buffers, so that the kernel context of grlearn ++ uses a semaphore around the userspace copying, and the other kernel contexts ++ use a spinlock when copying into the buffer, since they cannot sleep ++*/ ++static char *learn_buffer; ++static char *learn_buffer_user; ++static int learn_buffer_len; ++static int learn_buffer_user_len; ++ ++static ssize_t ++read_learn(struct file *file, char __user * buf, size_t count, loff_t * ppos) ++{ ++ DECLARE_WAITQUEUE(wait, current); ++ ssize_t retval = 0; ++ ++ add_wait_queue(&learn_wait, &wait); ++ set_current_state(TASK_INTERRUPTIBLE); ++ do { ++ mutex_lock(&gr_learn_user_mutex); ++ spin_lock(&gr_learn_lock); ++ if (learn_buffer_len) ++ break; ++ spin_unlock(&gr_learn_lock); ++ mutex_unlock(&gr_learn_user_mutex); ++ if (file->f_flags & O_NONBLOCK) { ++ retval = -EAGAIN; ++ goto out; ++ } ++ if (signal_pending(current)) { ++ retval = -ERESTARTSYS; ++ goto out; ++ } ++ ++ schedule(); ++ } while (1); ++ ++ memcpy(learn_buffer_user, learn_buffer, learn_buffer_len); ++ learn_buffer_user_len = learn_buffer_len; ++ retval = learn_buffer_len; ++ learn_buffer_len = 0; ++ ++ spin_unlock(&gr_learn_lock); ++ ++ if (copy_to_user(buf, learn_buffer_user, learn_buffer_user_len)) ++ retval = -EFAULT; ++ ++ mutex_unlock(&gr_learn_user_mutex); ++out: ++ set_current_state(TASK_RUNNING); ++ remove_wait_queue(&learn_wait, &wait); ++ return retval; ++} ++ ++static unsigned int ++poll_learn(struct file * file, poll_table * wait) ++{ ++ poll_wait(file, &learn_wait, wait); ++ ++ if (learn_buffer_len) ++ return (POLLIN | POLLRDNORM); ++ ++ return 0; ++} ++ ++void ++gr_clear_learn_entries(void) ++{ ++ char *tmp; ++ ++ mutex_lock(&gr_learn_user_mutex); ++ spin_lock(&gr_learn_lock); ++ tmp = learn_buffer; ++ learn_buffer = NULL; ++ spin_unlock(&gr_learn_lock); ++ if (tmp) ++ vfree(tmp); ++ if (learn_buffer_user != NULL) { ++ vfree(learn_buffer_user); ++ learn_buffer_user = NULL; ++ } ++ learn_buffer_len = 0; ++ mutex_unlock(&gr_learn_user_mutex); ++ ++ return; ++} ++ ++void ++gr_add_learn_entry(const char *fmt, ...) ++{ ++ va_list args; ++ unsigned int len; ++ ++ if (!gr_learn_attached) ++ return; ++ ++ spin_lock(&gr_learn_lock); ++ ++ /* leave a gap at the end so we know when it's "full" but don't have to ++ compute the exact length of the string we're trying to append ++ */ ++ if (learn_buffer_len > LEARN_BUFFER_SIZE - 16384) { ++ spin_unlock(&gr_learn_lock); ++ wake_up_interruptible(&learn_wait); ++ return; ++ } ++ if (learn_buffer == NULL) { ++ spin_unlock(&gr_learn_lock); ++ return; ++ } ++ ++ va_start(args, fmt); ++ len = vsnprintf(learn_buffer + learn_buffer_len, LEARN_BUFFER_SIZE - learn_buffer_len, fmt, args); ++ va_end(args); ++ ++ learn_buffer_len += len + 1; ++ ++ spin_unlock(&gr_learn_lock); ++ wake_up_interruptible(&learn_wait); ++ ++ return; ++} ++ ++static int ++open_learn(struct inode *inode, struct file *file) ++{ ++ if (file->f_mode & FMODE_READ && gr_learn_attached) ++ return -EBUSY; ++ if (file->f_mode & FMODE_READ) { ++ int retval = 0; ++ mutex_lock(&gr_learn_user_mutex); ++ if (learn_buffer == NULL) ++ learn_buffer = vmalloc(LEARN_BUFFER_SIZE); ++ if (learn_buffer_user == NULL) ++ learn_buffer_user = vmalloc(LEARN_BUFFER_SIZE); ++ if (learn_buffer == NULL) { ++ retval = -ENOMEM; ++ goto out_error; ++ } ++ if (learn_buffer_user == NULL) { ++ retval = -ENOMEM; ++ goto out_error; ++ } ++ learn_buffer_len = 0; ++ learn_buffer_user_len = 0; ++ gr_learn_attached = 1; ++out_error: ++ mutex_unlock(&gr_learn_user_mutex); ++ return retval; ++ } ++ return 0; ++} ++ ++static int ++close_learn(struct inode *inode, struct file *file) ++{ ++ if (file->f_mode & FMODE_READ) { ++ char *tmp = NULL; ++ mutex_lock(&gr_learn_user_mutex); ++ spin_lock(&gr_learn_lock); ++ tmp = learn_buffer; ++ learn_buffer = NULL; ++ spin_unlock(&gr_learn_lock); ++ if (tmp) ++ vfree(tmp); ++ if (learn_buffer_user != NULL) { ++ vfree(learn_buffer_user); ++ learn_buffer_user = NULL; ++ } ++ learn_buffer_len = 0; ++ learn_buffer_user_len = 0; ++ gr_learn_attached = 0; ++ mutex_unlock(&gr_learn_user_mutex); ++ } ++ ++ return 0; ++} ++ ++const struct file_operations grsec_fops = { ++ .read = read_learn, ++ .write = write_grsec_handler, ++ .open = open_learn, ++ .release = close_learn, ++ .poll = poll_learn, ++}; +diff --git a/grsecurity/gracl_res.c b/grsecurity/gracl_res.c +new file mode 100644 +index 0000000..39645c9 +--- /dev/null ++++ b/grsecurity/gracl_res.c +@@ -0,0 +1,68 @@ ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/gracl.h> ++#include <linux/grinternal.h> ++ ++static const char *restab_log[] = { ++ [RLIMIT_CPU] = "RLIMIT_CPU", ++ [RLIMIT_FSIZE] = "RLIMIT_FSIZE", ++ [RLIMIT_DATA] = "RLIMIT_DATA", ++ [RLIMIT_STACK] = "RLIMIT_STACK", ++ [RLIMIT_CORE] = "RLIMIT_CORE", ++ [RLIMIT_RSS] = "RLIMIT_RSS", ++ [RLIMIT_NPROC] = "RLIMIT_NPROC", ++ [RLIMIT_NOFILE] = "RLIMIT_NOFILE", ++ [RLIMIT_MEMLOCK] = "RLIMIT_MEMLOCK", ++ [RLIMIT_AS] = "RLIMIT_AS", ++ [RLIMIT_LOCKS] = "RLIMIT_LOCKS", ++ [RLIMIT_SIGPENDING] = "RLIMIT_SIGPENDING", ++ [RLIMIT_MSGQUEUE] = "RLIMIT_MSGQUEUE", ++ [RLIMIT_NICE] = "RLIMIT_NICE", ++ [RLIMIT_RTPRIO] = "RLIMIT_RTPRIO", ++ [RLIMIT_RTTIME] = "RLIMIT_RTTIME", ++ [GR_CRASH_RES] = "RLIMIT_CRASH" ++}; ++ ++void ++gr_log_resource(const struct task_struct *task, ++ const int res, const unsigned long wanted, const int gt) ++{ ++ const struct cred *cred; ++ unsigned long rlim; ++ ++ if (!gr_acl_is_enabled() && !grsec_resource_logging) ++ return; ++ ++ // not yet supported resource ++ if (unlikely(!restab_log[res])) ++ return; ++ ++ if (res == RLIMIT_CPU || res == RLIMIT_RTTIME) ++ rlim = task_rlimit_max(task, res); ++ else ++ rlim = task_rlimit(task, res); ++ ++ if (likely((rlim == RLIM_INFINITY) || (gt && wanted <= rlim) || (!gt && wanted < rlim))) ++ return; ++ ++ rcu_read_lock(); ++ cred = __task_cred(task); ++ ++ if (res == RLIMIT_NPROC && ++ (cap_raised(cred->cap_effective, CAP_SYS_ADMIN) || ++ cap_raised(cred->cap_effective, CAP_SYS_RESOURCE))) ++ goto out_rcu_unlock; ++ else if (res == RLIMIT_MEMLOCK && ++ cap_raised(cred->cap_effective, CAP_IPC_LOCK)) ++ goto out_rcu_unlock; ++ else if (res == RLIMIT_NICE && cap_raised(cred->cap_effective, CAP_SYS_NICE)) ++ goto out_rcu_unlock; ++ rcu_read_unlock(); ++ ++ gr_log_res_ulong2_str(GR_DONT_AUDIT, GR_RESOURCE_MSG, task, wanted, restab_log[res], rlim); ++ ++ return; ++out_rcu_unlock: ++ rcu_read_unlock(); ++ return; ++} +diff --git a/grsecurity/gracl_segv.c b/grsecurity/gracl_segv.c +new file mode 100644 +index 0000000..5556be3 +--- /dev/null ++++ b/grsecurity/gracl_segv.c +@@ -0,0 +1,299 @@ ++#include <linux/kernel.h> ++#include <linux/mm.h> ++#include <asm/uaccess.h> ++#include <asm/errno.h> ++#include <asm/mman.h> ++#include <net/sock.h> ++#include <linux/file.h> ++#include <linux/fs.h> ++#include <linux/net.h> ++#include <linux/in.h> ++#include <linux/slab.h> ++#include <linux/types.h> ++#include <linux/sched.h> ++#include <linux/timer.h> ++#include <linux/gracl.h> ++#include <linux/grsecurity.h> ++#include <linux/grinternal.h> ++ ++static struct crash_uid *uid_set; ++static unsigned short uid_used; ++static DEFINE_SPINLOCK(gr_uid_lock); ++extern rwlock_t gr_inode_lock; ++extern struct acl_subject_label * ++ lookup_acl_subj_label(const ino_t inode, const dev_t dev, ++ struct acl_role_label *role); ++ ++#ifdef CONFIG_BTRFS_FS ++extern dev_t get_btrfs_dev_from_inode(struct inode *inode); ++extern int btrfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat); ++#endif ++ ++static inline dev_t __get_dev(const struct dentry *dentry) ++{ ++#ifdef CONFIG_BTRFS_FS ++ if (dentry->d_inode->i_op && dentry->d_inode->i_op->getattr == &btrfs_getattr) ++ return get_btrfs_dev_from_inode(dentry->d_inode); ++ else ++#endif ++ return dentry->d_inode->i_sb->s_dev; ++} ++ ++int ++gr_init_uidset(void) ++{ ++ uid_set = ++ kmalloc(GR_UIDTABLE_MAX * sizeof (struct crash_uid), GFP_KERNEL); ++ uid_used = 0; ++ ++ return uid_set ? 1 : 0; ++} ++ ++void ++gr_free_uidset(void) ++{ ++ if (uid_set) ++ kfree(uid_set); ++ ++ return; ++} ++ ++int ++gr_find_uid(const uid_t uid) ++{ ++ struct crash_uid *tmp = uid_set; ++ uid_t buid; ++ int low = 0, high = uid_used - 1, mid; ++ ++ while (high >= low) { ++ mid = (low + high) >> 1; ++ buid = tmp[mid].uid; ++ if (buid == uid) ++ return mid; ++ if (buid > uid) ++ high = mid - 1; ++ if (buid < uid) ++ low = mid + 1; ++ } ++ ++ return -1; ++} ++ ++static __inline__ void ++gr_insertsort(void) ++{ ++ unsigned short i, j; ++ struct crash_uid index; ++ ++ for (i = 1; i < uid_used; i++) { ++ index = uid_set[i]; ++ j = i; ++ while ((j > 0) && uid_set[j - 1].uid > index.uid) { ++ uid_set[j] = uid_set[j - 1]; ++ j--; ++ } ++ uid_set[j] = index; ++ } ++ ++ return; ++} ++ ++static __inline__ void ++gr_insert_uid(const uid_t uid, const unsigned long expires) ++{ ++ int loc; ++ ++ if (uid_used == GR_UIDTABLE_MAX) ++ return; ++ ++ loc = gr_find_uid(uid); ++ ++ if (loc >= 0) { ++ uid_set[loc].expires = expires; ++ return; ++ } ++ ++ uid_set[uid_used].uid = uid; ++ uid_set[uid_used].expires = expires; ++ uid_used++; ++ ++ gr_insertsort(); ++ ++ return; ++} ++ ++void ++gr_remove_uid(const unsigned short loc) ++{ ++ unsigned short i; ++ ++ for (i = loc + 1; i < uid_used; i++) ++ uid_set[i - 1] = uid_set[i]; ++ ++ uid_used--; ++ ++ return; ++} ++ ++int ++gr_check_crash_uid(const uid_t uid) ++{ ++ int loc; ++ int ret = 0; ++ ++ if (unlikely(!gr_acl_is_enabled())) ++ return 0; ++ ++ spin_lock(&gr_uid_lock); ++ loc = gr_find_uid(uid); ++ ++ if (loc < 0) ++ goto out_unlock; ++ ++ if (time_before_eq(uid_set[loc].expires, get_seconds())) ++ gr_remove_uid(loc); ++ else ++ ret = 1; ++ ++out_unlock: ++ spin_unlock(&gr_uid_lock); ++ return ret; ++} ++ ++static __inline__ int ++proc_is_setxid(const struct cred *cred) ++{ ++ if (cred->uid != cred->euid || cred->uid != cred->suid || ++ cred->uid != cred->fsuid) ++ return 1; ++ if (cred->gid != cred->egid || cred->gid != cred->sgid || ++ cred->gid != cred->fsgid) ++ return 1; ++ ++ return 0; ++} ++ ++extern int gr_fake_force_sig(int sig, struct task_struct *t); ++ ++void ++gr_handle_crash(struct task_struct *task, const int sig) ++{ ++ struct acl_subject_label *curr; ++ struct task_struct *tsk, *tsk2; ++ const struct cred *cred; ++ const struct cred *cred2; ++ ++ if (sig != SIGSEGV && sig != SIGKILL && sig != SIGBUS && sig != SIGILL) ++ return; ++ ++ if (unlikely(!gr_acl_is_enabled())) ++ return; ++ ++ curr = task->acl; ++ ++ if (!(curr->resmask & (1 << GR_CRASH_RES))) ++ return; ++ ++ if (time_before_eq(curr->expires, get_seconds())) { ++ curr->expires = 0; ++ curr->crashes = 0; ++ } ++ ++ curr->crashes++; ++ ++ if (!curr->expires) ++ curr->expires = get_seconds() + curr->res[GR_CRASH_RES].rlim_max; ++ ++ if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) && ++ time_after(curr->expires, get_seconds())) { ++ rcu_read_lock(); ++ cred = __task_cred(task); ++ if (cred->uid && proc_is_setxid(cred)) { ++ gr_log_crash1(GR_DONT_AUDIT, GR_SEGVSTART_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max); ++ spin_lock(&gr_uid_lock); ++ gr_insert_uid(cred->uid, curr->expires); ++ spin_unlock(&gr_uid_lock); ++ curr->expires = 0; ++ curr->crashes = 0; ++ read_lock(&tasklist_lock); ++ do_each_thread(tsk2, tsk) { ++ cred2 = __task_cred(tsk); ++ if (tsk != task && cred2->uid == cred->uid) ++ gr_fake_force_sig(SIGKILL, tsk); ++ } while_each_thread(tsk2, tsk); ++ read_unlock(&tasklist_lock); ++ } else { ++ gr_log_crash2(GR_DONT_AUDIT, GR_SEGVNOSUID_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max); ++ read_lock(&tasklist_lock); ++ read_lock(&grsec_exec_file_lock); ++ do_each_thread(tsk2, tsk) { ++ if (likely(tsk != task)) { ++ // if this thread has the same subject as the one that triggered ++ // RES_CRASH and it's the same binary, kill it ++ if (tsk->acl == task->acl && tsk->exec_file == task->exec_file) ++ gr_fake_force_sig(SIGKILL, tsk); ++ } ++ } while_each_thread(tsk2, tsk); ++ read_unlock(&grsec_exec_file_lock); ++ read_unlock(&tasklist_lock); ++ } ++ rcu_read_unlock(); ++ } ++ ++ return; ++} ++ ++int ++gr_check_crash_exec(const struct file *filp) ++{ ++ struct acl_subject_label *curr; ++ ++ if (unlikely(!gr_acl_is_enabled())) ++ return 0; ++ ++ read_lock(&gr_inode_lock); ++ curr = lookup_acl_subj_label(filp->f_path.dentry->d_inode->i_ino, ++ __get_dev(filp->f_path.dentry), ++ current->role); ++ read_unlock(&gr_inode_lock); ++ ++ if (!curr || !(curr->resmask & (1 << GR_CRASH_RES)) || ++ (!curr->crashes && !curr->expires)) ++ return 0; ++ ++ if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) && ++ time_after(curr->expires, get_seconds())) ++ return 1; ++ else if (time_before_eq(curr->expires, get_seconds())) { ++ curr->crashes = 0; ++ curr->expires = 0; ++ } ++ ++ return 0; ++} ++ ++void ++gr_handle_alertkill(struct task_struct *task) ++{ ++ struct acl_subject_label *curracl; ++ __u32 curr_ip; ++ struct task_struct *p, *p2; ++ ++ if (unlikely(!gr_acl_is_enabled())) ++ return; ++ ++ curracl = task->acl; ++ curr_ip = task->signal->curr_ip; ++ ++ if ((curracl->mode & GR_KILLIPPROC) && curr_ip) { ++ read_lock(&tasklist_lock); ++ do_each_thread(p2, p) { ++ if (p->signal->curr_ip == curr_ip) ++ gr_fake_force_sig(SIGKILL, p); ++ } while_each_thread(p2, p); ++ read_unlock(&tasklist_lock); ++ } else if (curracl->mode & GR_KILLPROC) ++ gr_fake_force_sig(SIGKILL, task); ++ ++ return; ++} +diff --git a/grsecurity/gracl_shm.c b/grsecurity/gracl_shm.c +new file mode 100644 +index 0000000..9d83a69 +--- /dev/null ++++ b/grsecurity/gracl_shm.c +@@ -0,0 +1,40 @@ ++#include <linux/kernel.h> ++#include <linux/mm.h> ++#include <linux/sched.h> ++#include <linux/file.h> ++#include <linux/ipc.h> ++#include <linux/gracl.h> ++#include <linux/grsecurity.h> ++#include <linux/grinternal.h> ++ ++int ++gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid, ++ const time_t shm_createtime, const uid_t cuid, const int shmid) ++{ ++ struct task_struct *task; ++ ++ if (!gr_acl_is_enabled()) ++ return 1; ++ ++ rcu_read_lock(); ++ read_lock(&tasklist_lock); ++ ++ task = find_task_by_vpid(shm_cprid); ++ ++ if (unlikely(!task)) ++ task = find_task_by_vpid(shm_lapid); ++ ++ if (unlikely(task && (time_before_eq((unsigned long)task->start_time.tv_sec, (unsigned long)shm_createtime) || ++ (task->pid == shm_lapid)) && ++ (task->acl->mode & GR_PROTSHM) && ++ (task->acl != current->acl))) { ++ read_unlock(&tasklist_lock); ++ rcu_read_unlock(); ++ gr_log_int3(GR_DONT_AUDIT, GR_SHMAT_ACL_MSG, cuid, shm_cprid, shmid); ++ return 0; ++ } ++ read_unlock(&tasklist_lock); ++ rcu_read_unlock(); ++ ++ return 1; ++} +diff --git a/grsecurity/grsec_chdir.c b/grsecurity/grsec_chdir.c +new file mode 100644 +index 0000000..bc0be01 +--- /dev/null ++++ b/grsecurity/grsec_chdir.c +@@ -0,0 +1,19 @@ ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/fs.h> ++#include <linux/file.h> ++#include <linux/grsecurity.h> ++#include <linux/grinternal.h> ++ ++void ++gr_log_chdir(const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR ++ if ((grsec_enable_chdir && grsec_enable_group && ++ in_group_p(grsec_audit_gid)) || (grsec_enable_chdir && ++ !grsec_enable_group)) { ++ gr_log_fs_generic(GR_DO_AUDIT, GR_CHDIR_AUDIT_MSG, dentry, mnt); ++ } ++#endif ++ return; ++} +diff --git a/grsecurity/grsec_chroot.c b/grsecurity/grsec_chroot.c +new file mode 100644 +index 0000000..9807ee2 +--- /dev/null ++++ b/grsecurity/grsec_chroot.c +@@ -0,0 +1,368 @@ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/sched.h> ++#include <linux/file.h> ++#include <linux/fs.h> ++#include <linux/mount.h> ++#include <linux/types.h> ++#include "../fs/mount.h" ++#include <linux/grsecurity.h> ++#include <linux/grinternal.h> ++ ++void gr_set_chroot_entries(struct task_struct *task, struct path *path) ++{ ++#ifdef CONFIG_GRKERNSEC ++ if (task->pid > 1 && path->dentry != init_task.fs->root.dentry && ++ path->dentry != task->nsproxy->mnt_ns->root->mnt.mnt_root) ++ task->gr_is_chrooted = 1; ++ else ++ task->gr_is_chrooted = 0; ++ ++ task->gr_chroot_dentry = path->dentry; ++#endif ++ return; ++} ++ ++void gr_clear_chroot_entries(struct task_struct *task) ++{ ++#ifdef CONFIG_GRKERNSEC ++ task->gr_is_chrooted = 0; ++ task->gr_chroot_dentry = NULL; ++#endif ++ return; ++} ++ ++int ++gr_handle_chroot_unix(const pid_t pid) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX ++ struct task_struct *p; ++ ++ if (unlikely(!grsec_enable_chroot_unix)) ++ return 1; ++ ++ if (likely(!proc_is_chrooted(current))) ++ return 1; ++ ++ rcu_read_lock(); ++ read_lock(&tasklist_lock); ++ p = find_task_by_vpid_unrestricted(pid); ++ if (unlikely(p && !have_same_root(current, p))) { ++ read_unlock(&tasklist_lock); ++ rcu_read_unlock(); ++ gr_log_noargs(GR_DONT_AUDIT, GR_UNIX_CHROOT_MSG); ++ return 0; ++ } ++ read_unlock(&tasklist_lock); ++ rcu_read_unlock(); ++#endif ++ return 1; ++} ++ ++int ++gr_handle_chroot_nice(void) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_NICE ++ if (grsec_enable_chroot_nice && proc_is_chrooted(current)) { ++ gr_log_noargs(GR_DONT_AUDIT, GR_NICE_CHROOT_MSG); ++ return -EPERM; ++ } ++#endif ++ return 0; ++} ++ ++int ++gr_handle_chroot_setpriority(struct task_struct *p, const int niceval) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_NICE ++ if (grsec_enable_chroot_nice && (niceval < task_nice(p)) ++ && proc_is_chrooted(current)) { ++ gr_log_str_int(GR_DONT_AUDIT, GR_PRIORITY_CHROOT_MSG, p->comm, p->pid); ++ return -EACCES; ++ } ++#endif ++ return 0; ++} ++ ++int ++gr_handle_chroot_rawio(const struct inode *inode) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS ++ if (grsec_enable_chroot_caps && proc_is_chrooted(current) && ++ inode && S_ISBLK(inode->i_mode) && !capable(CAP_SYS_RAWIO)) ++ return 1; ++#endif ++ return 0; ++} ++ ++int ++gr_handle_chroot_fowner(struct pid *pid, enum pid_type type) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK ++ struct task_struct *p; ++ int ret = 0; ++ if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || !pid) ++ return ret; ++ ++ read_lock(&tasklist_lock); ++ do_each_pid_task(pid, type, p) { ++ if (!have_same_root(current, p)) { ++ ret = 1; ++ goto out; ++ } ++ } while_each_pid_task(pid, type, p); ++out: ++ read_unlock(&tasklist_lock); ++ return ret; ++#endif ++ return 0; ++} ++ ++int ++gr_pid_is_chrooted(struct task_struct *p) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK ++ if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || p == NULL) ++ return 0; ++ ++ if ((p->exit_state & (EXIT_ZOMBIE | EXIT_DEAD)) || ++ !have_same_root(current, p)) { ++ return 1; ++ } ++#endif ++ return 0; ++} ++ ++EXPORT_SYMBOL(gr_pid_is_chrooted); ++ ++#if defined(CONFIG_GRKERNSEC_CHROOT_DOUBLE) || defined(CONFIG_GRKERNSEC_CHROOT_FCHDIR) ++int gr_is_outside_chroot(const struct dentry *u_dentry, const struct vfsmount *u_mnt) ++{ ++ struct path path, currentroot; ++ int ret = 0; ++ ++ path.dentry = (struct dentry *)u_dentry; ++ path.mnt = (struct vfsmount *)u_mnt; ++ get_fs_root(current->fs, &currentroot); ++ if (path_is_under(&path, &currentroot)) ++ ret = 1; ++ path_put(&currentroot); ++ ++ return ret; ++} ++#endif ++ ++int ++gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR ++ if (!grsec_enable_chroot_fchdir) ++ return 1; ++ ++ if (!proc_is_chrooted(current)) ++ return 1; ++ else if (!gr_is_outside_chroot(u_dentry, u_mnt)) { ++ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_FCHDIR_MSG, u_dentry, u_mnt); ++ return 0; ++ } ++#endif ++ return 1; ++} ++ ++int ++gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid, ++ const time_t shm_createtime) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT ++ struct task_struct *p; ++ time_t starttime; ++ ++ if (unlikely(!grsec_enable_chroot_shmat)) ++ return 1; ++ ++ if (likely(!proc_is_chrooted(current))) ++ return 1; ++ ++ rcu_read_lock(); ++ read_lock(&tasklist_lock); ++ ++ if ((p = find_task_by_vpid_unrestricted(shm_cprid))) { ++ starttime = p->start_time.tv_sec; ++ if (time_before_eq((unsigned long)starttime, (unsigned long)shm_createtime)) { ++ if (have_same_root(current, p)) { ++ goto allow; ++ } else { ++ read_unlock(&tasklist_lock); ++ rcu_read_unlock(); ++ gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG); ++ return 0; ++ } ++ } ++ /* creator exited, pid reuse, fall through to next check */ ++ } ++ if ((p = find_task_by_vpid_unrestricted(shm_lapid))) { ++ if (unlikely(!have_same_root(current, p))) { ++ read_unlock(&tasklist_lock); ++ rcu_read_unlock(); ++ gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG); ++ return 0; ++ } ++ } ++ ++allow: ++ read_unlock(&tasklist_lock); ++ rcu_read_unlock(); ++#endif ++ return 1; ++} ++ ++void ++gr_log_chroot_exec(const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG ++ if (grsec_enable_chroot_execlog && proc_is_chrooted(current)) ++ gr_log_fs_generic(GR_DO_AUDIT, GR_EXEC_CHROOT_MSG, dentry, mnt); ++#endif ++ return; ++} ++ ++int ++gr_handle_chroot_mknod(const struct dentry *dentry, ++ const struct vfsmount *mnt, const int mode) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD ++ if (grsec_enable_chroot_mknod && !S_ISFIFO(mode) && !S_ISREG(mode) && ++ proc_is_chrooted(current)) { ++ gr_log_fs_generic(GR_DONT_AUDIT, GR_MKNOD_CHROOT_MSG, dentry, mnt); ++ return -EPERM; ++ } ++#endif ++ return 0; ++} ++ ++int ++gr_handle_chroot_mount(const struct dentry *dentry, ++ const struct vfsmount *mnt, const char *dev_name) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT ++ if (grsec_enable_chroot_mount && proc_is_chrooted(current)) { ++ gr_log_str_fs(GR_DONT_AUDIT, GR_MOUNT_CHROOT_MSG, dev_name ? dev_name : "none", dentry, mnt); ++ return -EPERM; ++ } ++#endif ++ return 0; ++} ++ ++int ++gr_handle_chroot_pivot(void) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT ++ if (grsec_enable_chroot_pivot && proc_is_chrooted(current)) { ++ gr_log_noargs(GR_DONT_AUDIT, GR_PIVOT_CHROOT_MSG); ++ return -EPERM; ++ } ++#endif ++ return 0; ++} ++ ++int ++gr_handle_chroot_chroot(const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE ++ if (grsec_enable_chroot_double && proc_is_chrooted(current) && ++ !gr_is_outside_chroot(dentry, mnt)) { ++ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_CHROOT_MSG, dentry, mnt); ++ return -EPERM; ++ } ++#endif ++ return 0; ++} ++ ++extern const char *captab_log[]; ++extern int captab_log_entries; ++ ++int ++gr_task_chroot_is_capable(const struct task_struct *task, const struct cred *cred, const int cap) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS ++ if (grsec_enable_chroot_caps && proc_is_chrooted(task)) { ++ kernel_cap_t chroot_caps = GR_CHROOT_CAPS; ++ if (cap_raised(chroot_caps, cap)) { ++ if (cap_raised(cred->cap_effective, cap) && cap < captab_log_entries) { ++ gr_log_cap(GR_DONT_AUDIT, GR_CAP_CHROOT_MSG, task, captab_log[cap]); ++ } ++ return 0; ++ } ++ } ++#endif ++ return 1; ++} ++ ++int ++gr_chroot_is_capable(const int cap) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS ++ return gr_task_chroot_is_capable(current, current_cred(), cap); ++#endif ++ return 1; ++} ++ ++int ++gr_task_chroot_is_capable_nolog(const struct task_struct *task, const int cap) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS ++ if (grsec_enable_chroot_caps && proc_is_chrooted(task)) { ++ kernel_cap_t chroot_caps = GR_CHROOT_CAPS; ++ if (cap_raised(chroot_caps, cap)) { ++ return 0; ++ } ++ } ++#endif ++ return 1; ++} ++ ++int ++gr_chroot_is_capable_nolog(const int cap) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS ++ return gr_task_chroot_is_capable_nolog(current, cap); ++#endif ++ return 1; ++} ++ ++int ++gr_handle_chroot_sysctl(const int op) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL ++ if (grsec_enable_chroot_sysctl && (op & MAY_WRITE) && ++ proc_is_chrooted(current)) ++ return -EACCES; ++#endif ++ return 0; ++} ++ ++void ++gr_handle_chroot_chdir(struct path *path) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR ++ if (grsec_enable_chroot_chdir) ++ set_fs_pwd(current->fs, path); ++#endif ++ return; ++} ++ ++int ++gr_handle_chroot_chmod(const struct dentry *dentry, ++ const struct vfsmount *mnt, const int mode) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD ++ /* allow chmod +s on directories, but not files */ ++ if (grsec_enable_chroot_chmod && !S_ISDIR(dentry->d_inode->i_mode) && ++ ((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))) && ++ proc_is_chrooted(current)) { ++ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHMOD_CHROOT_MSG, dentry, mnt); ++ return -EPERM; ++ } ++#endif ++ return 0; ++} +diff --git a/grsecurity/grsec_disabled.c b/grsecurity/grsec_disabled.c +new file mode 100644 +index 0000000..213ad8b +--- /dev/null ++++ b/grsecurity/grsec_disabled.c +@@ -0,0 +1,437 @@ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/sched.h> ++#include <linux/file.h> ++#include <linux/fs.h> ++#include <linux/kdev_t.h> ++#include <linux/net.h> ++#include <linux/in.h> ++#include <linux/ip.h> ++#include <linux/skbuff.h> ++#include <linux/sysctl.h> ++ ++#ifdef CONFIG_PAX_HAVE_ACL_FLAGS ++void ++pax_set_initial_flags(struct linux_binprm *bprm) ++{ ++ return; ++} ++#endif ++ ++#ifdef CONFIG_SYSCTL ++__u32 ++gr_handle_sysctl(const struct ctl_table * table, const int op) ++{ ++ return 0; ++} ++#endif ++ ++#ifdef CONFIG_TASKSTATS ++int gr_is_taskstats_denied(int pid) ++{ ++ return 0; ++} ++#endif ++ ++int ++gr_acl_is_enabled(void) ++{ ++ return 0; ++} ++ ++void ++gr_handle_proc_create(const struct dentry *dentry, const struct inode *inode) ++{ ++ return; ++} ++ ++int ++gr_handle_rawio(const struct inode *inode) ++{ ++ return 0; ++} ++ ++void ++gr_acl_handle_psacct(struct task_struct *task, const long code) ++{ ++ return; ++} ++ ++int ++gr_handle_ptrace(struct task_struct *task, const long request) ++{ ++ return 0; ++} ++ ++int ++gr_handle_proc_ptrace(struct task_struct *task) ++{ ++ return 0; ++} ++ ++void ++gr_learn_resource(const struct task_struct *task, ++ const int res, const unsigned long wanted, const int gt) ++{ ++ return; ++} ++ ++int ++gr_set_acls(const int type) ++{ ++ return 0; ++} ++ ++int ++gr_check_hidden_task(const struct task_struct *tsk) ++{ ++ return 0; ++} ++ ++int ++gr_check_protected_task(const struct task_struct *task) ++{ ++ return 0; ++} ++ ++int ++gr_check_protected_task_fowner(struct pid *pid, enum pid_type type) ++{ ++ return 0; ++} ++ ++void ++gr_copy_label(struct task_struct *tsk) ++{ ++ return; ++} ++ ++void ++gr_set_pax_flags(struct task_struct *task) ++{ ++ return; ++} ++ ++int ++gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt, ++ const int unsafe_share) ++{ ++ return 0; ++} ++ ++void ++gr_handle_delete(const ino_t ino, const dev_t dev) ++{ ++ return; ++} ++ ++void ++gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++ return; ++} ++ ++void ++gr_handle_crash(struct task_struct *task, const int sig) ++{ ++ return; ++} ++ ++int ++gr_check_crash_exec(const struct file *filp) ++{ ++ return 0; ++} ++ ++int ++gr_check_crash_uid(const uid_t uid) ++{ ++ return 0; ++} ++ ++void ++gr_handle_rename(struct inode *old_dir, struct inode *new_dir, ++ struct dentry *old_dentry, ++ struct dentry *new_dentry, ++ struct vfsmount *mnt, const __u8 replace) ++{ ++ return; ++} ++ ++int ++gr_search_socket(const int family, const int type, const int protocol) ++{ ++ return 1; ++} ++ ++int ++gr_search_connectbind(const int mode, const struct socket *sock, ++ const struct sockaddr_in *addr) ++{ ++ return 0; ++} ++ ++void ++gr_handle_alertkill(struct task_struct *task) ++{ ++ return; ++} ++ ++__u32 ++gr_acl_handle_execve(const struct dentry * dentry, const struct vfsmount * mnt) ++{ ++ return 1; ++} ++ ++__u32 ++gr_acl_handle_hidden_file(const struct dentry * dentry, ++ const struct vfsmount * mnt) ++{ ++ return 1; ++} ++ ++__u32 ++gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt, ++ int acc_mode) ++{ ++ return 1; ++} ++ ++__u32 ++gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt) ++{ ++ return 1; ++} ++ ++__u32 ++gr_acl_handle_unlink(const struct dentry * dentry, const struct vfsmount * mnt) ++{ ++ return 1; ++} ++ ++int ++gr_acl_handle_mmap(const struct file *file, const unsigned long prot, ++ unsigned int *vm_flags) ++{ ++ return 1; ++} ++ ++__u32 ++gr_acl_handle_truncate(const struct dentry * dentry, ++ const struct vfsmount * mnt) ++{ ++ return 1; ++} ++ ++__u32 ++gr_acl_handle_utime(const struct dentry * dentry, const struct vfsmount * mnt) ++{ ++ return 1; ++} ++ ++__u32 ++gr_acl_handle_access(const struct dentry * dentry, ++ const struct vfsmount * mnt, const int fmode) ++{ ++ return 1; ++} ++ ++__u32 ++gr_acl_handle_chmod(const struct dentry * dentry, const struct vfsmount * mnt, ++ umode_t *mode) ++{ ++ return 1; ++} ++ ++__u32 ++gr_acl_handle_chown(const struct dentry * dentry, const struct vfsmount * mnt) ++{ ++ return 1; ++} ++ ++__u32 ++gr_acl_handle_setxattr(const struct dentry * dentry, const struct vfsmount * mnt) ++{ ++ return 1; ++} ++ ++void ++grsecurity_init(void) ++{ ++ return; ++} ++ ++umode_t gr_acl_umask(void) ++{ ++ return 0; ++} ++ ++__u32 ++gr_acl_handle_mknod(const struct dentry * new_dentry, ++ const struct dentry * parent_dentry, ++ const struct vfsmount * parent_mnt, ++ const int mode) ++{ ++ return 1; ++} ++ ++__u32 ++gr_acl_handle_mkdir(const struct dentry * new_dentry, ++ const struct dentry * parent_dentry, ++ const struct vfsmount * parent_mnt) ++{ ++ return 1; ++} ++ ++__u32 ++gr_acl_handle_symlink(const struct dentry * new_dentry, ++ const struct dentry * parent_dentry, ++ const struct vfsmount * parent_mnt, const char *from) ++{ ++ return 1; ++} ++ ++__u32 ++gr_acl_handle_link(const struct dentry * new_dentry, ++ const struct dentry * parent_dentry, ++ const struct vfsmount * parent_mnt, ++ const struct dentry * old_dentry, ++ const struct vfsmount * old_mnt, const char *to) ++{ ++ return 1; ++} ++ ++int ++gr_acl_handle_rename(const struct dentry *new_dentry, ++ const struct dentry *parent_dentry, ++ const struct vfsmount *parent_mnt, ++ const struct dentry *old_dentry, ++ const struct inode *old_parent_inode, ++ const struct vfsmount *old_mnt, const char *newname) ++{ ++ return 0; ++} ++ ++int ++gr_acl_handle_filldir(const struct file *file, const char *name, ++ const int namelen, const ino_t ino) ++{ ++ return 1; ++} ++ ++int ++gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid, ++ const time_t shm_createtime, const uid_t cuid, const int shmid) ++{ ++ return 1; ++} ++ ++int ++gr_search_bind(const struct socket *sock, const struct sockaddr_in *addr) ++{ ++ return 0; ++} ++ ++int ++gr_search_accept(const struct socket *sock) ++{ ++ return 0; ++} ++ ++int ++gr_search_listen(const struct socket *sock) ++{ ++ return 0; ++} ++ ++int ++gr_search_connect(const struct socket *sock, const struct sockaddr_in *addr) ++{ ++ return 0; ++} ++ ++__u32 ++gr_acl_handle_unix(const struct dentry * dentry, const struct vfsmount * mnt) ++{ ++ return 1; ++} ++ ++__u32 ++gr_acl_handle_creat(const struct dentry * dentry, ++ const struct dentry * p_dentry, ++ const struct vfsmount * p_mnt, int open_flags, int acc_mode, ++ const int imode) ++{ ++ return 1; ++} ++ ++void ++gr_acl_handle_exit(void) ++{ ++ return; ++} ++ ++int ++gr_acl_handle_mprotect(const struct file *file, const unsigned long prot) ++{ ++ return 1; ++} ++ ++void ++gr_set_role_label(const uid_t uid, const gid_t gid) ++{ ++ return; ++} ++ ++int ++gr_acl_handle_procpidmem(const struct task_struct *task) ++{ ++ return 0; ++} ++ ++int ++gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb) ++{ ++ return 0; ++} ++ ++int ++gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr) ++{ ++ return 0; ++} ++ ++void ++gr_set_kernel_label(struct task_struct *task) ++{ ++ return; ++} ++ ++int ++gr_check_user_change(int real, int effective, int fs) ++{ ++ return 0; ++} ++ ++int ++gr_check_group_change(int real, int effective, int fs) ++{ ++ return 0; ++} ++ ++int gr_acl_enable_at_secure(void) ++{ ++ return 0; ++} ++ ++dev_t gr_get_dev_from_dentry(struct dentry *dentry) ++{ ++ return dentry->d_inode->i_sb->s_dev; ++} ++ ++EXPORT_SYMBOL(gr_learn_resource); ++EXPORT_SYMBOL(gr_set_kernel_label); ++#ifdef CONFIG_SECURITY ++EXPORT_SYMBOL(gr_check_user_change); ++EXPORT_SYMBOL(gr_check_group_change); ++#endif +diff --git a/grsecurity/grsec_exec.c b/grsecurity/grsec_exec.c +new file mode 100644 +index 0000000..abfa971 +--- /dev/null ++++ b/grsecurity/grsec_exec.c +@@ -0,0 +1,174 @@ ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/file.h> ++#include <linux/binfmts.h> ++#include <linux/fs.h> ++#include <linux/types.h> ++#include <linux/grdefs.h> ++#include <linux/grsecurity.h> ++#include <linux/grinternal.h> ++#include <linux/capability.h> ++#include <linux/module.h> ++ ++#include <asm/uaccess.h> ++ ++#ifdef CONFIG_GRKERNSEC_EXECLOG ++static char gr_exec_arg_buf[132]; ++static DEFINE_MUTEX(gr_exec_arg_mutex); ++#endif ++ ++extern const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr); ++ ++void ++gr_handle_exec_args(struct linux_binprm *bprm, struct user_arg_ptr argv) ++{ ++#ifdef CONFIG_GRKERNSEC_EXECLOG ++ char *grarg = gr_exec_arg_buf; ++ unsigned int i, x, execlen = 0; ++ char c; ++ ++ if (!((grsec_enable_execlog && grsec_enable_group && ++ in_group_p(grsec_audit_gid)) ++ || (grsec_enable_execlog && !grsec_enable_group))) ++ return; ++ ++ mutex_lock(&gr_exec_arg_mutex); ++ memset(grarg, 0, sizeof(gr_exec_arg_buf)); ++ ++ for (i = 0; i < bprm->argc && execlen < 128; i++) { ++ const char __user *p; ++ unsigned int len; ++ ++ p = get_user_arg_ptr(argv, i); ++ if (IS_ERR(p)) ++ goto log; ++ ++ len = strnlen_user(p, 128 - execlen); ++ if (len > 128 - execlen) ++ len = 128 - execlen; ++ else if (len > 0) ++ len--; ++ if (copy_from_user(grarg + execlen, p, len)) ++ goto log; ++ ++ /* rewrite unprintable characters */ ++ for (x = 0; x < len; x++) { ++ c = *(grarg + execlen + x); ++ if (c < 32 || c > 126) ++ *(grarg + execlen + x) = ' '; ++ } ++ ++ execlen += len; ++ *(grarg + execlen) = ' '; ++ *(grarg + execlen + 1) = '\0'; ++ execlen++; ++ } ++ ++ log: ++ gr_log_fs_str(GR_DO_AUDIT, GR_EXEC_AUDIT_MSG, bprm->file->f_path.dentry, ++ bprm->file->f_path.mnt, grarg); ++ mutex_unlock(&gr_exec_arg_mutex); ++#endif ++ return; ++} ++ ++#ifdef CONFIG_GRKERNSEC ++extern int gr_acl_is_capable(const int cap); ++extern int gr_acl_is_capable_nolog(const int cap); ++extern int gr_task_acl_is_capable(const struct task_struct *task, const struct cred *cred, const int cap); ++extern int gr_task_acl_is_capable_nolog(const struct task_struct *task, const int cap); ++extern int gr_chroot_is_capable(const int cap); ++extern int gr_chroot_is_capable_nolog(const int cap); ++extern int gr_task_chroot_is_capable(const struct task_struct *task, const struct cred *cred, const int cap); ++extern int gr_task_chroot_is_capable_nolog(const struct task_struct *task, const int cap); ++#endif ++ ++const char *captab_log[] = { ++ "CAP_CHOWN", ++ "CAP_DAC_OVERRIDE", ++ "CAP_DAC_READ_SEARCH", ++ "CAP_FOWNER", ++ "CAP_FSETID", ++ "CAP_KILL", ++ "CAP_SETGID", ++ "CAP_SETUID", ++ "CAP_SETPCAP", ++ "CAP_LINUX_IMMUTABLE", ++ "CAP_NET_BIND_SERVICE", ++ "CAP_NET_BROADCAST", ++ "CAP_NET_ADMIN", ++ "CAP_NET_RAW", ++ "CAP_IPC_LOCK", ++ "CAP_IPC_OWNER", ++ "CAP_SYS_MODULE", ++ "CAP_SYS_RAWIO", ++ "CAP_SYS_CHROOT", ++ "CAP_SYS_PTRACE", ++ "CAP_SYS_PACCT", ++ "CAP_SYS_ADMIN", ++ "CAP_SYS_BOOT", ++ "CAP_SYS_NICE", ++ "CAP_SYS_RESOURCE", ++ "CAP_SYS_TIME", ++ "CAP_SYS_TTY_CONFIG", ++ "CAP_MKNOD", ++ "CAP_LEASE", ++ "CAP_AUDIT_WRITE", ++ "CAP_AUDIT_CONTROL", ++ "CAP_SETFCAP", ++ "CAP_MAC_OVERRIDE", ++ "CAP_MAC_ADMIN", ++ "CAP_SYSLOG", ++ "CAP_WAKE_ALARM" ++}; ++ ++int captab_log_entries = sizeof(captab_log)/sizeof(captab_log[0]); ++ ++int gr_is_capable(const int cap) ++{ ++#ifdef CONFIG_GRKERNSEC ++ if (gr_acl_is_capable(cap) && gr_chroot_is_capable(cap)) ++ return 1; ++ return 0; ++#else ++ return 1; ++#endif ++} ++ ++int gr_task_is_capable(const struct task_struct *task, const struct cred *cred, const int cap) ++{ ++#ifdef CONFIG_GRKERNSEC ++ if (gr_task_acl_is_capable(task, cred, cap) && gr_task_chroot_is_capable(task, cred, cap)) ++ return 1; ++ return 0; ++#else ++ return 1; ++#endif ++} ++ ++int gr_is_capable_nolog(const int cap) ++{ ++#ifdef CONFIG_GRKERNSEC ++ if (gr_acl_is_capable_nolog(cap) && gr_chroot_is_capable_nolog(cap)) ++ return 1; ++ return 0; ++#else ++ return 1; ++#endif ++} ++ ++int gr_task_is_capable_nolog(const struct task_struct *task, const int cap) ++{ ++#ifdef CONFIG_GRKERNSEC ++ if (gr_task_acl_is_capable_nolog(task, cap) && gr_task_chroot_is_capable_nolog(task, cap)) ++ return 1; ++ return 0; ++#else ++ return 1; ++#endif ++} ++ ++EXPORT_SYMBOL(gr_is_capable); ++EXPORT_SYMBOL(gr_is_capable_nolog); ++EXPORT_SYMBOL(gr_task_is_capable); ++EXPORT_SYMBOL(gr_task_is_capable_nolog); +diff --git a/grsecurity/grsec_fifo.c b/grsecurity/grsec_fifo.c +new file mode 100644 +index 0000000..d3ee748 +--- /dev/null ++++ b/grsecurity/grsec_fifo.c +@@ -0,0 +1,24 @@ ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/fs.h> ++#include <linux/file.h> ++#include <linux/grinternal.h> ++ ++int ++gr_handle_fifo(const struct dentry *dentry, const struct vfsmount *mnt, ++ const struct dentry *dir, const int flag, const int acc_mode) ++{ ++#ifdef CONFIG_GRKERNSEC_FIFO ++ const struct cred *cred = current_cred(); ++ ++ if (grsec_enable_fifo && S_ISFIFO(dentry->d_inode->i_mode) && ++ !(flag & O_EXCL) && (dir->d_inode->i_mode & S_ISVTX) && ++ (dentry->d_inode->i_uid != dir->d_inode->i_uid) && ++ (cred->fsuid != dentry->d_inode->i_uid)) { ++ if (!inode_permission(dentry->d_inode, acc_mode)) ++ gr_log_fs_int2(GR_DONT_AUDIT, GR_FIFO_MSG, dentry, mnt, dentry->d_inode->i_uid, dentry->d_inode->i_gid); ++ return -EACCES; ++ } ++#endif ++ return 0; ++} +diff --git a/grsecurity/grsec_fork.c b/grsecurity/grsec_fork.c +new file mode 100644 +index 0000000..8ca18bf +--- /dev/null ++++ b/grsecurity/grsec_fork.c +@@ -0,0 +1,23 @@ ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/grsecurity.h> ++#include <linux/grinternal.h> ++#include <linux/errno.h> ++ ++void ++gr_log_forkfail(const int retval) ++{ ++#ifdef CONFIG_GRKERNSEC_FORKFAIL ++ if (grsec_enable_forkfail && (retval == -EAGAIN || retval == -ENOMEM)) { ++ switch (retval) { ++ case -EAGAIN: ++ gr_log_str(GR_DONT_AUDIT, GR_FAILFORK_MSG, "EAGAIN"); ++ break; ++ case -ENOMEM: ++ gr_log_str(GR_DONT_AUDIT, GR_FAILFORK_MSG, "ENOMEM"); ++ break; ++ } ++ } ++#endif ++ return; ++} +diff --git a/grsecurity/grsec_init.c b/grsecurity/grsec_init.c +new file mode 100644 +index 0000000..05a6015 +--- /dev/null ++++ b/grsecurity/grsec_init.c +@@ -0,0 +1,283 @@ ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/mm.h> ++#include <linux/gracl.h> ++#include <linux/slab.h> ++#include <linux/vmalloc.h> ++#include <linux/percpu.h> ++#include <linux/module.h> ++ ++int grsec_enable_ptrace_readexec; ++int grsec_enable_setxid; ++int grsec_enable_symlinkown; ++int grsec_symlinkown_gid; ++int grsec_enable_brute; ++int grsec_enable_link; ++int grsec_enable_dmesg; ++int grsec_enable_harden_ptrace; ++int grsec_enable_fifo; ++int grsec_enable_execlog; ++int grsec_enable_signal; ++int grsec_enable_forkfail; ++int grsec_enable_audit_ptrace; ++int grsec_enable_time; ++int grsec_enable_audit_textrel; ++int grsec_enable_group; ++int grsec_audit_gid; ++int grsec_enable_chdir; ++int grsec_enable_mount; ++int grsec_enable_rofs; ++int grsec_enable_chroot_findtask; ++int grsec_enable_chroot_mount; ++int grsec_enable_chroot_shmat; ++int grsec_enable_chroot_fchdir; ++int grsec_enable_chroot_double; ++int grsec_enable_chroot_pivot; ++int grsec_enable_chroot_chdir; ++int grsec_enable_chroot_chmod; ++int grsec_enable_chroot_mknod; ++int grsec_enable_chroot_nice; ++int grsec_enable_chroot_execlog; ++int grsec_enable_chroot_caps; ++int grsec_enable_chroot_sysctl; ++int grsec_enable_chroot_unix; ++int grsec_enable_tpe; ++int grsec_tpe_gid; ++int grsec_enable_blackhole; ++#ifdef CONFIG_IPV6_MODULE ++EXPORT_SYMBOL(grsec_enable_blackhole); ++#endif ++int grsec_lastack_retries; ++int grsec_enable_tpe_all; ++int grsec_enable_tpe_invert; ++int grsec_enable_socket_all; ++int grsec_socket_all_gid; ++int grsec_enable_socket_client; ++int grsec_socket_client_gid; ++int grsec_enable_socket_server; ++int grsec_socket_server_gid; ++int grsec_resource_logging; ++int grsec_disable_privio; ++int grsec_enable_log_rwxmaps; ++int grsec_lock; ++ ++DEFINE_SPINLOCK(grsec_alert_lock); ++unsigned long grsec_alert_wtime = 0; ++unsigned long grsec_alert_fyet = 0; ++ ++DEFINE_SPINLOCK(grsec_audit_lock); ++ ++DEFINE_RWLOCK(grsec_exec_file_lock); ++ ++char *gr_shared_page[4]; ++ ++char *gr_alert_log_fmt; ++char *gr_audit_log_fmt; ++char *gr_alert_log_buf; ++char *gr_audit_log_buf; ++ ++extern struct gr_arg *gr_usermode; ++extern unsigned char *gr_system_salt; ++extern unsigned char *gr_system_sum; ++ ++void __init ++grsecurity_init(void) ++{ ++ int j; ++ /* create the per-cpu shared pages */ ++ ++#ifdef CONFIG_X86 ++ memset((char *)(0x41a + PAGE_OFFSET), 0, 36); ++#endif ++ ++ for (j = 0; j < 4; j++) { ++ gr_shared_page[j] = (char *)__alloc_percpu(PAGE_SIZE, __alignof__(unsigned long long)); ++ if (gr_shared_page[j] == NULL) { ++ panic("Unable to allocate grsecurity shared page"); ++ return; ++ } ++ } ++ ++ /* allocate log buffers */ ++ gr_alert_log_fmt = kmalloc(512, GFP_KERNEL); ++ if (!gr_alert_log_fmt) { ++ panic("Unable to allocate grsecurity alert log format buffer"); ++ return; ++ } ++ gr_audit_log_fmt = kmalloc(512, GFP_KERNEL); ++ if (!gr_audit_log_fmt) { ++ panic("Unable to allocate grsecurity audit log format buffer"); ++ return; ++ } ++ gr_alert_log_buf = (char *) get_zeroed_page(GFP_KERNEL); ++ if (!gr_alert_log_buf) { ++ panic("Unable to allocate grsecurity alert log buffer"); ++ return; ++ } ++ gr_audit_log_buf = (char *) get_zeroed_page(GFP_KERNEL); ++ if (!gr_audit_log_buf) { ++ panic("Unable to allocate grsecurity audit log buffer"); ++ return; ++ } ++ ++ /* allocate memory for authentication structure */ ++ gr_usermode = kmalloc(sizeof(struct gr_arg), GFP_KERNEL); ++ gr_system_salt = kmalloc(GR_SALT_LEN, GFP_KERNEL); ++ gr_system_sum = kmalloc(GR_SHA_LEN, GFP_KERNEL); ++ ++ if (!gr_usermode || !gr_system_salt || !gr_system_sum) { ++ panic("Unable to allocate grsecurity authentication structure"); ++ return; ++ } ++ ++ ++#ifdef CONFIG_GRKERNSEC_IO ++#if !defined(CONFIG_GRKERNSEC_SYSCTL_DISTRO) ++ grsec_disable_privio = 1; ++#elif defined(CONFIG_GRKERNSEC_SYSCTL_ON) ++ grsec_disable_privio = 1; ++#else ++ grsec_disable_privio = 0; ++#endif ++#endif ++ ++#ifdef CONFIG_GRKERNSEC_TPE_INVERT ++ /* for backward compatibility, tpe_invert always defaults to on if ++ enabled in the kernel ++ */ ++ grsec_enable_tpe_invert = 1; ++#endif ++ ++#if !defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_SYSCTL_ON) ++#ifndef CONFIG_GRKERNSEC_SYSCTL ++ grsec_lock = 1; ++#endif ++ ++#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL ++ grsec_enable_audit_textrel = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG ++ grsec_enable_log_rwxmaps = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP ++ grsec_enable_group = 1; ++ grsec_audit_gid = CONFIG_GRKERNSEC_AUDIT_GID; ++#endif ++#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC ++ grsec_enable_ptrace_readexec = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR ++ grsec_enable_chdir = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE ++ grsec_enable_harden_ptrace = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT ++ grsec_enable_mount = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_LINK ++ grsec_enable_link = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_BRUTE ++ grsec_enable_brute = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_DMESG ++ grsec_enable_dmesg = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++ grsec_enable_blackhole = 1; ++ grsec_lastack_retries = 4; ++#endif ++#ifdef CONFIG_GRKERNSEC_FIFO ++ grsec_enable_fifo = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_EXECLOG ++ grsec_enable_execlog = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_SETXID ++ grsec_enable_setxid = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_SIGNAL ++ grsec_enable_signal = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_FORKFAIL ++ grsec_enable_forkfail = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_TIME ++ grsec_enable_time = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_RESLOG ++ grsec_resource_logging = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK ++ grsec_enable_chroot_findtask = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX ++ grsec_enable_chroot_unix = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT ++ grsec_enable_chroot_mount = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR ++ grsec_enable_chroot_fchdir = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT ++ grsec_enable_chroot_shmat = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE ++ grsec_enable_audit_ptrace = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE ++ grsec_enable_chroot_double = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT ++ grsec_enable_chroot_pivot = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR ++ grsec_enable_chroot_chdir = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD ++ grsec_enable_chroot_chmod = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD ++ grsec_enable_chroot_mknod = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_NICE ++ grsec_enable_chroot_nice = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG ++ grsec_enable_chroot_execlog = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS ++ grsec_enable_chroot_caps = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL ++ grsec_enable_chroot_sysctl = 1; ++#endif ++#ifdef CONFIG_GRKERNSEC_SYMLINKOWN ++ grsec_enable_symlinkown = 1; ++ grsec_symlinkown_gid = CONFIG_GRKERNSEC_SYMLINKOWN_GID; ++#endif ++#ifdef CONFIG_GRKERNSEC_TPE ++ grsec_enable_tpe = 1; ++ grsec_tpe_gid = CONFIG_GRKERNSEC_TPE_GID; ++#ifdef CONFIG_GRKERNSEC_TPE_ALL ++ grsec_enable_tpe_all = 1; ++#endif ++#endif ++#ifdef CONFIG_GRKERNSEC_SOCKET_ALL ++ grsec_enable_socket_all = 1; ++ grsec_socket_all_gid = CONFIG_GRKERNSEC_SOCKET_ALL_GID; ++#endif ++#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT ++ grsec_enable_socket_client = 1; ++ grsec_socket_client_gid = CONFIG_GRKERNSEC_SOCKET_CLIENT_GID; ++#endif ++#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER ++ grsec_enable_socket_server = 1; ++ grsec_socket_server_gid = CONFIG_GRKERNSEC_SOCKET_SERVER_GID; ++#endif ++#endif ++ ++ return; ++} +diff --git a/grsecurity/grsec_link.c b/grsecurity/grsec_link.c +new file mode 100644 +index 0000000..35a96d1 +--- /dev/null ++++ b/grsecurity/grsec_link.c +@@ -0,0 +1,59 @@ ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/fs.h> ++#include <linux/file.h> ++#include <linux/grinternal.h> ++ ++int gr_handle_symlink_owner(const struct path *link, const struct inode *target) ++{ ++#ifdef CONFIG_GRKERNSEC_SYMLINKOWN ++ const struct inode *link_inode = link->dentry->d_inode; ++ ++ if (grsec_enable_symlinkown && in_group_p(grsec_symlinkown_gid) && ++ /* ignore root-owned links, e.g. /proc/self */ ++ link_inode->i_uid && ++ link_inode->i_uid != target->i_uid) { ++ gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINKOWNER_MSG, link->dentry, link->mnt, link_inode->i_uid, target->i_uid); ++ return 1; ++ } ++#endif ++ return 0; ++} ++ ++int ++gr_handle_follow_link(const struct inode *parent, ++ const struct inode *inode, ++ const struct dentry *dentry, const struct vfsmount *mnt) ++{ ++#ifdef CONFIG_GRKERNSEC_LINK ++ const struct cred *cred = current_cred(); ++ ++ if (grsec_enable_link && S_ISLNK(inode->i_mode) && ++ (parent->i_mode & S_ISVTX) && (parent->i_uid != inode->i_uid) && ++ (parent->i_mode & S_IWOTH) && (cred->fsuid != inode->i_uid)) { ++ gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid); ++ return -EACCES; ++ } ++#endif ++ return 0; ++} ++ ++int ++gr_handle_hardlink(const struct dentry *dentry, ++ const struct vfsmount *mnt, ++ struct inode *inode, const int mode, const char *to) ++{ ++#ifdef CONFIG_GRKERNSEC_LINK ++ const struct cred *cred = current_cred(); ++ ++ if (grsec_enable_link && cred->fsuid != inode->i_uid && ++ (!S_ISREG(mode) || (mode & S_ISUID) || ++ ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) || ++ (inode_permission(inode, MAY_READ | MAY_WRITE))) && ++ !capable(CAP_FOWNER) && cred->uid) { ++ gr_log_fs_int2_str(GR_DONT_AUDIT, GR_HARDLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid, to); ++ return -EPERM; ++ } ++#endif ++ return 0; ++} +diff --git a/grsecurity/grsec_log.c b/grsecurity/grsec_log.c +new file mode 100644 +index 0000000..a45d2e9 +--- /dev/null ++++ b/grsecurity/grsec_log.c +@@ -0,0 +1,322 @@ ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/file.h> ++#include <linux/tty.h> ++#include <linux/fs.h> ++#include <linux/grinternal.h> ++ ++#ifdef CONFIG_TREE_PREEMPT_RCU ++#define DISABLE_PREEMPT() preempt_disable() ++#define ENABLE_PREEMPT() preempt_enable() ++#else ++#define DISABLE_PREEMPT() ++#define ENABLE_PREEMPT() ++#endif ++ ++#define BEGIN_LOCKS(x) \ ++ DISABLE_PREEMPT(); \ ++ rcu_read_lock(); \ ++ read_lock(&tasklist_lock); \ ++ read_lock(&grsec_exec_file_lock); \ ++ if (x != GR_DO_AUDIT) \ ++ spin_lock(&grsec_alert_lock); \ ++ else \ ++ spin_lock(&grsec_audit_lock) ++ ++#define END_LOCKS(x) \ ++ if (x != GR_DO_AUDIT) \ ++ spin_unlock(&grsec_alert_lock); \ ++ else \ ++ spin_unlock(&grsec_audit_lock); \ ++ read_unlock(&grsec_exec_file_lock); \ ++ read_unlock(&tasklist_lock); \ ++ rcu_read_unlock(); \ ++ ENABLE_PREEMPT(); \ ++ if (x == GR_DONT_AUDIT) \ ++ gr_handle_alertkill(current) ++ ++enum { ++ FLOODING, ++ NO_FLOODING ++}; ++ ++extern char *gr_alert_log_fmt; ++extern char *gr_audit_log_fmt; ++extern char *gr_alert_log_buf; ++extern char *gr_audit_log_buf; ++ ++static int gr_log_start(int audit) ++{ ++ char *loglevel = (audit == GR_DO_AUDIT) ? KERN_INFO : KERN_ALERT; ++ char *fmt = (audit == GR_DO_AUDIT) ? gr_audit_log_fmt : gr_alert_log_fmt; ++ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf; ++#if (CONFIG_GRKERNSEC_FLOODTIME > 0 && CONFIG_GRKERNSEC_FLOODBURST > 0) ++ unsigned long curr_secs = get_seconds(); ++ ++ if (audit == GR_DO_AUDIT) ++ goto set_fmt; ++ ++ if (!grsec_alert_wtime || time_after(curr_secs, grsec_alert_wtime + CONFIG_GRKERNSEC_FLOODTIME)) { ++ grsec_alert_wtime = curr_secs; ++ grsec_alert_fyet = 0; ++ } else if (time_before_eq(curr_secs, grsec_alert_wtime + CONFIG_GRKERNSEC_FLOODTIME) ++ && (grsec_alert_fyet < CONFIG_GRKERNSEC_FLOODBURST)) { ++ grsec_alert_fyet++; ++ } else if (grsec_alert_fyet == CONFIG_GRKERNSEC_FLOODBURST) { ++ grsec_alert_wtime = curr_secs; ++ grsec_alert_fyet++; ++ printk(KERN_ALERT "grsec: more alerts, logging disabled for %d seconds\n", CONFIG_GRKERNSEC_FLOODTIME); ++ return FLOODING; ++ } ++ else return FLOODING; ++ ++set_fmt: ++#endif ++ memset(buf, 0, PAGE_SIZE); ++ if (current->signal->curr_ip && gr_acl_is_enabled()) { ++ sprintf(fmt, "%s%s", loglevel, "grsec: From %pI4: (%.64s:%c:%.950s) "); ++ snprintf(buf, PAGE_SIZE - 1, fmt, &current->signal->curr_ip, current->role->rolename, gr_roletype_to_char(), current->acl->filename); ++ } else if (current->signal->curr_ip) { ++ sprintf(fmt, "%s%s", loglevel, "grsec: From %pI4: "); ++ snprintf(buf, PAGE_SIZE - 1, fmt, &current->signal->curr_ip); ++ } else if (gr_acl_is_enabled()) { ++ sprintf(fmt, "%s%s", loglevel, "grsec: (%.64s:%c:%.950s) "); ++ snprintf(buf, PAGE_SIZE - 1, fmt, current->role->rolename, gr_roletype_to_char(), current->acl->filename); ++ } else { ++ sprintf(fmt, "%s%s", loglevel, "grsec: "); ++ strcpy(buf, fmt); ++ } ++ ++ return NO_FLOODING; ++} ++ ++static void gr_log_middle(int audit, const char *msg, va_list ap) ++ __attribute__ ((format (printf, 2, 0))); ++ ++static void gr_log_middle(int audit, const char *msg, va_list ap) ++{ ++ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf; ++ unsigned int len = strlen(buf); ++ ++ vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap); ++ ++ return; ++} ++ ++static void gr_log_middle_varargs(int audit, const char *msg, ...) ++ __attribute__ ((format (printf, 2, 3))); ++ ++static void gr_log_middle_varargs(int audit, const char *msg, ...) ++{ ++ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf; ++ unsigned int len = strlen(buf); ++ va_list ap; ++ ++ va_start(ap, msg); ++ vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap); ++ va_end(ap); ++ ++ return; ++} ++ ++static void gr_log_end(int audit, int append_default) ++{ ++ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf; ++ ++ if (append_default) { ++ unsigned int len = strlen(buf); ++ snprintf(buf + len, PAGE_SIZE - len - 1, DEFAULTSECMSG, DEFAULTSECARGS(current, current_cred(), __task_cred(current->real_parent))); ++ } ++ ++ printk("%s\n", buf); ++ ++ return; ++} ++ ++void gr_log_varargs(int audit, const char *msg, int argtypes, ...) ++{ ++ int logtype; ++ char *result = (audit == GR_DO_AUDIT) ? "successful" : "denied"; ++ char *str1 = NULL, *str2 = NULL, *str3 = NULL; ++ void *voidptr = NULL; ++ int num1 = 0, num2 = 0; ++ unsigned long ulong1 = 0, ulong2 = 0; ++ struct dentry *dentry = NULL; ++ struct vfsmount *mnt = NULL; ++ struct file *file = NULL; ++ struct task_struct *task = NULL; ++ const struct cred *cred, *pcred; ++ va_list ap; ++ ++ BEGIN_LOCKS(audit); ++ logtype = gr_log_start(audit); ++ if (logtype == FLOODING) { ++ END_LOCKS(audit); ++ return; ++ } ++ va_start(ap, argtypes); ++ switch (argtypes) { ++ case GR_TTYSNIFF: ++ task = va_arg(ap, struct task_struct *); ++ gr_log_middle_varargs(audit, msg, &task->signal->curr_ip, gr_task_fullpath0(task), task->comm, task->pid, gr_parent_task_fullpath0(task), task->real_parent->comm, task->real_parent->pid); ++ break; ++ case GR_SYSCTL_HIDDEN: ++ str1 = va_arg(ap, char *); ++ gr_log_middle_varargs(audit, msg, result, str1); ++ break; ++ case GR_RBAC: ++ dentry = va_arg(ap, struct dentry *); ++ mnt = va_arg(ap, struct vfsmount *); ++ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt)); ++ break; ++ case GR_RBAC_STR: ++ dentry = va_arg(ap, struct dentry *); ++ mnt = va_arg(ap, struct vfsmount *); ++ str1 = va_arg(ap, char *); ++ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1); ++ break; ++ case GR_STR_RBAC: ++ str1 = va_arg(ap, char *); ++ dentry = va_arg(ap, struct dentry *); ++ mnt = va_arg(ap, struct vfsmount *); ++ gr_log_middle_varargs(audit, msg, result, str1, gr_to_filename(dentry, mnt)); ++ break; ++ case GR_RBAC_MODE2: ++ dentry = va_arg(ap, struct dentry *); ++ mnt = va_arg(ap, struct vfsmount *); ++ str1 = va_arg(ap, char *); ++ str2 = va_arg(ap, char *); ++ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2); ++ break; ++ case GR_RBAC_MODE3: ++ dentry = va_arg(ap, struct dentry *); ++ mnt = va_arg(ap, struct vfsmount *); ++ str1 = va_arg(ap, char *); ++ str2 = va_arg(ap, char *); ++ str3 = va_arg(ap, char *); ++ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2, str3); ++ break; ++ case GR_FILENAME: ++ dentry = va_arg(ap, struct dentry *); ++ mnt = va_arg(ap, struct vfsmount *); ++ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt)); ++ break; ++ case GR_STR_FILENAME: ++ str1 = va_arg(ap, char *); ++ dentry = va_arg(ap, struct dentry *); ++ mnt = va_arg(ap, struct vfsmount *); ++ gr_log_middle_varargs(audit, msg, str1, gr_to_filename(dentry, mnt)); ++ break; ++ case GR_FILENAME_STR: ++ dentry = va_arg(ap, struct dentry *); ++ mnt = va_arg(ap, struct vfsmount *); ++ str1 = va_arg(ap, char *); ++ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), str1); ++ break; ++ case GR_FILENAME_TWO_INT: ++ dentry = va_arg(ap, struct dentry *); ++ mnt = va_arg(ap, struct vfsmount *); ++ num1 = va_arg(ap, int); ++ num2 = va_arg(ap, int); ++ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2); ++ break; ++ case GR_FILENAME_TWO_INT_STR: ++ dentry = va_arg(ap, struct dentry *); ++ mnt = va_arg(ap, struct vfsmount *); ++ num1 = va_arg(ap, int); ++ num2 = va_arg(ap, int); ++ str1 = va_arg(ap, char *); ++ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2, str1); ++ break; ++ case GR_TEXTREL: ++ file = va_arg(ap, struct file *); ++ ulong1 = va_arg(ap, unsigned long); ++ ulong2 = va_arg(ap, unsigned long); ++ gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>", ulong1, ulong2); ++ break; ++ case GR_PTRACE: ++ task = va_arg(ap, struct task_struct *); ++ gr_log_middle_varargs(audit, msg, task->exec_file ? gr_to_filename(task->exec_file->f_path.dentry, task->exec_file->f_path.mnt) : "(none)", task->comm, task->pid); ++ break; ++ case GR_RESOURCE: ++ task = va_arg(ap, struct task_struct *); ++ cred = __task_cred(task); ++ pcred = __task_cred(task->real_parent); ++ ulong1 = va_arg(ap, unsigned long); ++ str1 = va_arg(ap, char *); ++ ulong2 = va_arg(ap, unsigned long); ++ gr_log_middle_varargs(audit, msg, ulong1, str1, ulong2, gr_task_fullpath(task), task->comm, task->pid, cred->uid, cred->euid, cred->gid, cred->egid, gr_parent_task_fullpath(task), task->real_parent->comm, task->real_parent->pid, pcred->uid, pcred->euid, pcred->gid, pcred->egid); ++ break; ++ case GR_CAP: ++ task = va_arg(ap, struct task_struct *); ++ cred = __task_cred(task); ++ pcred = __task_cred(task->real_parent); ++ str1 = va_arg(ap, char *); ++ gr_log_middle_varargs(audit, msg, str1, gr_task_fullpath(task), task->comm, task->pid, cred->uid, cred->euid, cred->gid, cred->egid, gr_parent_task_fullpath(task), task->real_parent->comm, task->real_parent->pid, pcred->uid, pcred->euid, pcred->gid, pcred->egid); ++ break; ++ case GR_SIG: ++ str1 = va_arg(ap, char *); ++ voidptr = va_arg(ap, void *); ++ gr_log_middle_varargs(audit, msg, str1, voidptr); ++ break; ++ case GR_SIG2: ++ task = va_arg(ap, struct task_struct *); ++ cred = __task_cred(task); ++ pcred = __task_cred(task->real_parent); ++ num1 = va_arg(ap, int); ++ gr_log_middle_varargs(audit, msg, num1, gr_task_fullpath0(task), task->comm, task->pid, cred->uid, cred->euid, cred->gid, cred->egid, gr_parent_task_fullpath0(task), task->real_parent->comm, task->real_parent->pid, pcred->uid, pcred->euid, pcred->gid, pcred->egid); ++ break; ++ case GR_CRASH1: ++ task = va_arg(ap, struct task_struct *); ++ cred = __task_cred(task); ++ pcred = __task_cred(task->real_parent); ++ ulong1 = va_arg(ap, unsigned long); ++ gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task->pid, cred->uid, cred->euid, cred->gid, cred->egid, gr_parent_task_fullpath(task), task->real_parent->comm, task->real_parent->pid, pcred->uid, pcred->euid, pcred->gid, pcred->egid, cred->uid, ulong1); ++ break; ++ case GR_CRASH2: ++ task = va_arg(ap, struct task_struct *); ++ cred = __task_cred(task); ++ pcred = __task_cred(task->real_parent); ++ ulong1 = va_arg(ap, unsigned long); ++ gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task->pid, cred->uid, cred->euid, cred->gid, cred->egid, gr_parent_task_fullpath(task), task->real_parent->comm, task->real_parent->pid, pcred->uid, pcred->euid, pcred->gid, pcred->egid, ulong1); ++ break; ++ case GR_RWXMAP: ++ file = va_arg(ap, struct file *); ++ gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>"); ++ break; ++ case GR_PSACCT: ++ { ++ unsigned int wday, cday; ++ __u8 whr, chr; ++ __u8 wmin, cmin; ++ __u8 wsec, csec; ++ char cur_tty[64] = { 0 }; ++ char parent_tty[64] = { 0 }; ++ ++ task = va_arg(ap, struct task_struct *); ++ wday = va_arg(ap, unsigned int); ++ cday = va_arg(ap, unsigned int); ++ whr = va_arg(ap, int); ++ chr = va_arg(ap, int); ++ wmin = va_arg(ap, int); ++ cmin = va_arg(ap, int); ++ wsec = va_arg(ap, int); ++ csec = va_arg(ap, int); ++ ulong1 = va_arg(ap, unsigned long); ++ cred = __task_cred(task); ++ pcred = __task_cred(task->real_parent); ++ ++ gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task->pid, &task->signal->curr_ip, tty_name(task->signal->tty, cur_tty), cred->uid, cred->euid, cred->gid, cred->egid, wday, whr, wmin, wsec, cday, chr, cmin, csec, (task->flags & PF_SIGNALED) ? "killed by signal" : "exited", ulong1, gr_parent_task_fullpath(task), task->real_parent->comm, task->real_parent->pid, &task->real_parent->signal->curr_ip, tty_name(task->real_parent->signal->tty, parent_tty), pcred->uid, pcred->euid, pcred->gid, pcred->egid); ++ } ++ break; ++ default: ++ gr_log_middle(audit, msg, ap); ++ } ++ va_end(ap); ++ // these don't need DEFAULTSECARGS printed on the end ++ if (argtypes == GR_CRASH1 || argtypes == GR_CRASH2) ++ gr_log_end(audit, 0); ++ else ++ gr_log_end(audit, 1); ++ END_LOCKS(audit); ++} +diff --git a/grsecurity/grsec_mem.c b/grsecurity/grsec_mem.c +new file mode 100644 +index 0000000..f536303 +--- /dev/null ++++ b/grsecurity/grsec_mem.c +@@ -0,0 +1,40 @@ ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/mm.h> ++#include <linux/mman.h> ++#include <linux/grinternal.h> ++ ++void ++gr_handle_ioperm(void) ++{ ++ gr_log_noargs(GR_DONT_AUDIT, GR_IOPERM_MSG); ++ return; ++} ++ ++void ++gr_handle_iopl(void) ++{ ++ gr_log_noargs(GR_DONT_AUDIT, GR_IOPL_MSG); ++ return; ++} ++ ++void ++gr_handle_mem_readwrite(u64 from, u64 to) ++{ ++ gr_log_two_u64(GR_DONT_AUDIT, GR_MEM_READWRITE_MSG, from, to); ++ return; ++} ++ ++void ++gr_handle_vm86(void) ++{ ++ gr_log_noargs(GR_DONT_AUDIT, GR_VM86_MSG); ++ return; ++} ++ ++void ++gr_log_badprocpid(const char *entry) ++{ ++ gr_log_str(GR_DONT_AUDIT, GR_BADPROCPID_MSG, entry); ++ return; ++} +diff --git a/grsecurity/grsec_mount.c b/grsecurity/grsec_mount.c +new file mode 100644 +index 0000000..2131422 +--- /dev/null ++++ b/grsecurity/grsec_mount.c +@@ -0,0 +1,62 @@ ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/mount.h> ++#include <linux/grsecurity.h> ++#include <linux/grinternal.h> ++ ++void ++gr_log_remount(const char *devname, const int retval) ++{ ++#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT ++ if (grsec_enable_mount && (retval >= 0)) ++ gr_log_str(GR_DO_AUDIT, GR_REMOUNT_AUDIT_MSG, devname ? devname : "none"); ++#endif ++ return; ++} ++ ++void ++gr_log_unmount(const char *devname, const int retval) ++{ ++#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT ++ if (grsec_enable_mount && (retval >= 0)) ++ gr_log_str(GR_DO_AUDIT, GR_UNMOUNT_AUDIT_MSG, devname ? devname : "none"); ++#endif ++ return; ++} ++ ++void ++gr_log_mount(const char *from, const char *to, const int retval) ++{ ++#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT ++ if (grsec_enable_mount && (retval >= 0)) ++ gr_log_str_str(GR_DO_AUDIT, GR_MOUNT_AUDIT_MSG, from ? from : "none", to); ++#endif ++ return; ++} ++ ++int ++gr_handle_rofs_mount(struct dentry *dentry, struct vfsmount *mnt, int mnt_flags) ++{ ++#ifdef CONFIG_GRKERNSEC_ROFS ++ if (grsec_enable_rofs && !(mnt_flags & MNT_READONLY)) { ++ gr_log_fs_generic(GR_DO_AUDIT, GR_ROFS_MOUNT_MSG, dentry, mnt); ++ return -EPERM; ++ } else ++ return 0; ++#endif ++ return 0; ++} ++ ++int ++gr_handle_rofs_blockwrite(struct dentry *dentry, struct vfsmount *mnt, int acc_mode) ++{ ++#ifdef CONFIG_GRKERNSEC_ROFS ++ if (grsec_enable_rofs && (acc_mode & MAY_WRITE) && ++ dentry->d_inode && S_ISBLK(dentry->d_inode->i_mode)) { ++ gr_log_fs_generic(GR_DO_AUDIT, GR_ROFS_BLOCKWRITE_MSG, dentry, mnt); ++ return -EPERM; ++ } else ++ return 0; ++#endif ++ return 0; ++} +diff --git a/grsecurity/grsec_pax.c b/grsecurity/grsec_pax.c +new file mode 100644 +index 0000000..a3b12a0 +--- /dev/null ++++ b/grsecurity/grsec_pax.c +@@ -0,0 +1,36 @@ ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/mm.h> ++#include <linux/file.h> ++#include <linux/grinternal.h> ++#include <linux/grsecurity.h> ++ ++void ++gr_log_textrel(struct vm_area_struct * vma) ++{ ++#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL ++ if (grsec_enable_audit_textrel) ++ gr_log_textrel_ulong_ulong(GR_DO_AUDIT, GR_TEXTREL_AUDIT_MSG, vma->vm_file, vma->vm_start, vma->vm_pgoff); ++#endif ++ return; ++} ++ ++void ++gr_log_rwxmmap(struct file *file) ++{ ++#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG ++ if (grsec_enable_log_rwxmaps) ++ gr_log_rwxmap(GR_DONT_AUDIT, GR_RWXMMAP_MSG, file); ++#endif ++ return; ++} ++ ++void ++gr_log_rwxmprotect(struct file *file) ++{ ++#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG ++ if (grsec_enable_log_rwxmaps) ++ gr_log_rwxmap(GR_DONT_AUDIT, GR_RWXMPROTECT_MSG, file); ++#endif ++ return; ++} +diff --git a/grsecurity/grsec_ptrace.c b/grsecurity/grsec_ptrace.c +new file mode 100644 +index 0000000..f7f29aa +--- /dev/null ++++ b/grsecurity/grsec_ptrace.c +@@ -0,0 +1,30 @@ ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/grinternal.h> ++#include <linux/security.h> ++ ++void ++gr_audit_ptrace(struct task_struct *task) ++{ ++#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE ++ if (grsec_enable_audit_ptrace) ++ gr_log_ptrace(GR_DO_AUDIT, GR_PTRACE_AUDIT_MSG, task); ++#endif ++ return; ++} ++ ++int ++gr_ptrace_readexec(struct file *file, int unsafe_flags) ++{ ++#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC ++ const struct dentry *dentry = file->f_path.dentry; ++ const struct vfsmount *mnt = file->f_path.mnt; ++ ++ if (grsec_enable_ptrace_readexec && (unsafe_flags & LSM_UNSAFE_PTRACE) && ++ (inode_permission(dentry->d_inode, MAY_READ) || !gr_acl_handle_open(dentry, mnt, MAY_READ))) { ++ gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_READEXEC_MSG, dentry, mnt); ++ return -EACCES; ++ } ++#endif ++ return 0; ++} +diff --git a/grsecurity/grsec_sig.c b/grsecurity/grsec_sig.c +new file mode 100644 +index 0000000..7a5b2de +--- /dev/null ++++ b/grsecurity/grsec_sig.c +@@ -0,0 +1,207 @@ ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/delay.h> ++#include <linux/grsecurity.h> ++#include <linux/grinternal.h> ++#include <linux/hardirq.h> ++ ++char *signames[] = { ++ [SIGSEGV] = "Segmentation fault", ++ [SIGILL] = "Illegal instruction", ++ [SIGABRT] = "Abort", ++ [SIGBUS] = "Invalid alignment/Bus error" ++}; ++ ++void ++gr_log_signal(const int sig, const void *addr, const struct task_struct *t) ++{ ++#ifdef CONFIG_GRKERNSEC_SIGNAL ++ if (grsec_enable_signal && ((sig == SIGSEGV) || (sig == SIGILL) || ++ (sig == SIGABRT) || (sig == SIGBUS))) { ++ if (t->pid == current->pid) { ++ gr_log_sig_addr(GR_DONT_AUDIT_GOOD, GR_UNISIGLOG_MSG, signames[sig], addr); ++ } else { ++ gr_log_sig_task(GR_DONT_AUDIT_GOOD, GR_DUALSIGLOG_MSG, t, sig); ++ } ++ } ++#endif ++ return; ++} ++ ++int ++gr_handle_signal(const struct task_struct *p, const int sig) ++{ ++#ifdef CONFIG_GRKERNSEC ++ /* ignore the 0 signal for protected task checks */ ++ if (current->pid > 1 && sig && gr_check_protected_task(p)) { ++ gr_log_sig_task(GR_DONT_AUDIT, GR_SIG_ACL_MSG, p, sig); ++ return -EPERM; ++ } else if (gr_pid_is_chrooted((struct task_struct *)p)) { ++ return -EPERM; ++ } ++#endif ++ return 0; ++} ++ ++#ifdef CONFIG_GRKERNSEC ++extern int specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t); ++ ++int gr_fake_force_sig(int sig, struct task_struct *t) ++{ ++ unsigned long int flags; ++ int ret, blocked, ignored; ++ struct k_sigaction *action; ++ ++ spin_lock_irqsave(&t->sighand->siglock, flags); ++ action = &t->sighand->action[sig-1]; ++ ignored = action->sa.sa_handler == SIG_IGN; ++ blocked = sigismember(&t->blocked, sig); ++ if (blocked || ignored) { ++ action->sa.sa_handler = SIG_DFL; ++ if (blocked) { ++ sigdelset(&t->blocked, sig); ++ recalc_sigpending_and_wake(t); ++ } ++ } ++ if (action->sa.sa_handler == SIG_DFL) ++ t->signal->flags &= ~SIGNAL_UNKILLABLE; ++ ret = specific_send_sig_info(sig, SEND_SIG_PRIV, t); ++ ++ spin_unlock_irqrestore(&t->sighand->siglock, flags); ++ ++ return ret; ++} ++#endif ++ ++#ifdef CONFIG_GRKERNSEC_BRUTE ++#define GR_USER_BAN_TIME (15 * 60) ++ ++static int __get_dumpable(unsigned long mm_flags) ++{ ++ int ret; ++ ++ ret = mm_flags & MMF_DUMPABLE_MASK; ++ return (ret >= 2) ? 2 : ret; ++} ++#endif ++ ++void gr_handle_brute_attach(struct task_struct *p, unsigned long mm_flags) ++{ ++#ifdef CONFIG_GRKERNSEC_BRUTE ++ uid_t uid = 0; ++ ++ if (!grsec_enable_brute) ++ return; ++ ++ rcu_read_lock(); ++ read_lock(&tasklist_lock); ++ read_lock(&grsec_exec_file_lock); ++ if (p->real_parent && p->real_parent->exec_file == p->exec_file) ++ p->real_parent->brute = 1; ++ else { ++ const struct cred *cred = __task_cred(p), *cred2; ++ struct task_struct *tsk, *tsk2; ++ ++ if (!__get_dumpable(mm_flags) && cred->uid) { ++ struct user_struct *user; ++ ++ uid = cred->uid; ++ ++ /* this is put upon execution past expiration */ ++ user = find_user(uid); ++ if (user == NULL) ++ goto unlock; ++ user->banned = 1; ++ user->ban_expires = get_seconds() + GR_USER_BAN_TIME; ++ if (user->ban_expires == ~0UL) ++ user->ban_expires--; ++ ++ do_each_thread(tsk2, tsk) { ++ cred2 = __task_cred(tsk); ++ if (tsk != p && cred2->uid == uid) ++ gr_fake_force_sig(SIGKILL, tsk); ++ } while_each_thread(tsk2, tsk); ++ } ++ } ++unlock: ++ read_unlock(&grsec_exec_file_lock); ++ read_unlock(&tasklist_lock); ++ rcu_read_unlock(); ++ ++ if (uid) ++ printk(KERN_ALERT "grsec: bruteforce prevention initiated against uid %u, banning for %d minutes\n", uid, GR_USER_BAN_TIME / 60); ++ ++#endif ++ return; ++} ++ ++void gr_handle_brute_check(void) ++{ ++#ifdef CONFIG_GRKERNSEC_BRUTE ++ if (current->brute) ++ msleep(30 * 1000); ++#endif ++ return; ++} ++ ++void gr_handle_kernel_exploit(void) ++{ ++#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT ++ const struct cred *cred; ++ struct task_struct *tsk, *tsk2; ++ struct user_struct *user; ++ uid_t uid; ++ ++ if (in_irq() || in_serving_softirq() || in_nmi()) ++ panic("grsec: halting the system due to suspicious kernel crash caused in interrupt context"); ++ ++ uid = current_uid(); ++ ++ if (uid == 0) ++ panic("grsec: halting the system due to suspicious kernel crash caused by root"); ++ else { ++ /* kill all the processes of this user, hold a reference ++ to their creds struct, and prevent them from creating ++ another process until system reset ++ */ ++ printk(KERN_ALERT "grsec: banning user with uid %u until system restart for suspicious kernel crash\n", uid); ++ /* we intentionally leak this ref */ ++ user = get_uid(current->cred->user); ++ if (user) { ++ user->banned = 1; ++ user->ban_expires = ~0UL; ++ } ++ ++ read_lock(&tasklist_lock); ++ do_each_thread(tsk2, tsk) { ++ cred = __task_cred(tsk); ++ if (cred->uid == uid) ++ gr_fake_force_sig(SIGKILL, tsk); ++ } while_each_thread(tsk2, tsk); ++ read_unlock(&tasklist_lock); ++ } ++#endif ++} ++ ++int __gr_process_user_ban(struct user_struct *user) ++{ ++#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT) || defined(CONFIG_GRKERNSEC_BRUTE) ++ if (unlikely(user->banned)) { ++ if (user->ban_expires != ~0UL && time_after_eq(get_seconds(), user->ban_expires)) { ++ user->banned = 0; ++ user->ban_expires = 0; ++ free_uid(user); ++ } else ++ return -EPERM; ++ } ++#endif ++ return 0; ++} ++ ++int gr_process_user_ban(void) ++{ ++#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT) || defined(CONFIG_GRKERNSEC_BRUTE) ++ return __gr_process_user_ban(current->cred->user); ++#endif ++ return 0; ++} +diff --git a/grsecurity/grsec_sock.c b/grsecurity/grsec_sock.c +new file mode 100644 +index 0000000..4030d57 +--- /dev/null ++++ b/grsecurity/grsec_sock.c +@@ -0,0 +1,244 @@ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/sched.h> ++#include <linux/file.h> ++#include <linux/net.h> ++#include <linux/in.h> ++#include <linux/ip.h> ++#include <net/sock.h> ++#include <net/inet_sock.h> ++#include <linux/grsecurity.h> ++#include <linux/grinternal.h> ++#include <linux/gracl.h> ++ ++extern int gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb); ++extern int gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr); ++ ++EXPORT_SYMBOL(gr_search_udp_recvmsg); ++EXPORT_SYMBOL(gr_search_udp_sendmsg); ++ ++#ifdef CONFIG_UNIX_MODULE ++EXPORT_SYMBOL(gr_acl_handle_unix); ++EXPORT_SYMBOL(gr_acl_handle_mknod); ++EXPORT_SYMBOL(gr_handle_chroot_unix); ++EXPORT_SYMBOL(gr_handle_create); ++#endif ++ ++#ifdef CONFIG_GRKERNSEC ++#define gr_conn_table_size 32749 ++struct conn_table_entry { ++ struct conn_table_entry *next; ++ struct signal_struct *sig; ++}; ++ ++struct conn_table_entry *gr_conn_table[gr_conn_table_size]; ++DEFINE_SPINLOCK(gr_conn_table_lock); ++ ++extern const char * gr_socktype_to_name(unsigned char type); ++extern const char * gr_proto_to_name(unsigned char proto); ++extern const char * gr_sockfamily_to_name(unsigned char family); ++ ++static __inline__ int ++conn_hash(__u32 saddr, __u32 daddr, __u16 sport, __u16 dport, unsigned int size) ++{ ++ return ((daddr + saddr + (sport << 8) + (dport << 16)) % size); ++} ++ ++static __inline__ int ++conn_match(const struct signal_struct *sig, __u32 saddr, __u32 daddr, ++ __u16 sport, __u16 dport) ++{ ++ if (unlikely(sig->gr_saddr == saddr && sig->gr_daddr == daddr && ++ sig->gr_sport == sport && sig->gr_dport == dport)) ++ return 1; ++ else ++ return 0; ++} ++ ++static void gr_add_to_task_ip_table_nolock(struct signal_struct *sig, struct conn_table_entry *newent) ++{ ++ struct conn_table_entry **match; ++ unsigned int index; ++ ++ index = conn_hash(sig->gr_saddr, sig->gr_daddr, ++ sig->gr_sport, sig->gr_dport, ++ gr_conn_table_size); ++ ++ newent->sig = sig; ++ ++ match = &gr_conn_table[index]; ++ newent->next = *match; ++ *match = newent; ++ ++ return; ++} ++ ++static void gr_del_task_from_ip_table_nolock(struct signal_struct *sig) ++{ ++ struct conn_table_entry *match, *last = NULL; ++ unsigned int index; ++ ++ index = conn_hash(sig->gr_saddr, sig->gr_daddr, ++ sig->gr_sport, sig->gr_dport, ++ gr_conn_table_size); ++ ++ match = gr_conn_table[index]; ++ while (match && !conn_match(match->sig, ++ sig->gr_saddr, sig->gr_daddr, sig->gr_sport, ++ sig->gr_dport)) { ++ last = match; ++ match = match->next; ++ } ++ ++ if (match) { ++ if (last) ++ last->next = match->next; ++ else ++ gr_conn_table[index] = NULL; ++ kfree(match); ++ } ++ ++ return; ++} ++ ++static struct signal_struct * gr_lookup_task_ip_table(__u32 saddr, __u32 daddr, ++ __u16 sport, __u16 dport) ++{ ++ struct conn_table_entry *match; ++ unsigned int index; ++ ++ index = conn_hash(saddr, daddr, sport, dport, gr_conn_table_size); ++ ++ match = gr_conn_table[index]; ++ while (match && !conn_match(match->sig, saddr, daddr, sport, dport)) ++ match = match->next; ++ ++ if (match) ++ return match->sig; ++ else ++ return NULL; ++} ++ ++#endif ++ ++void gr_update_task_in_ip_table(struct task_struct *task, const struct inet_sock *inet) ++{ ++#ifdef CONFIG_GRKERNSEC ++ struct signal_struct *sig = task->signal; ++ struct conn_table_entry *newent; ++ ++ newent = kmalloc(sizeof(struct conn_table_entry), GFP_ATOMIC); ++ if (newent == NULL) ++ return; ++ /* no bh lock needed since we are called with bh disabled */ ++ spin_lock(&gr_conn_table_lock); ++ gr_del_task_from_ip_table_nolock(sig); ++ sig->gr_saddr = inet->inet_rcv_saddr; ++ sig->gr_daddr = inet->inet_daddr; ++ sig->gr_sport = inet->inet_sport; ++ sig->gr_dport = inet->inet_dport; ++ gr_add_to_task_ip_table_nolock(sig, newent); ++ spin_unlock(&gr_conn_table_lock); ++#endif ++ return; ++} ++ ++void gr_del_task_from_ip_table(struct task_struct *task) ++{ ++#ifdef CONFIG_GRKERNSEC ++ spin_lock_bh(&gr_conn_table_lock); ++ gr_del_task_from_ip_table_nolock(task->signal); ++ spin_unlock_bh(&gr_conn_table_lock); ++#endif ++ return; ++} ++ ++void ++gr_attach_curr_ip(const struct sock *sk) ++{ ++#ifdef CONFIG_GRKERNSEC ++ struct signal_struct *p, *set; ++ const struct inet_sock *inet = inet_sk(sk); ++ ++ if (unlikely(sk->sk_protocol != IPPROTO_TCP)) ++ return; ++ ++ set = current->signal; ++ ++ spin_lock_bh(&gr_conn_table_lock); ++ p = gr_lookup_task_ip_table(inet->inet_daddr, inet->inet_rcv_saddr, ++ inet->inet_dport, inet->inet_sport); ++ if (unlikely(p != NULL)) { ++ set->curr_ip = p->curr_ip; ++ set->used_accept = 1; ++ gr_del_task_from_ip_table_nolock(p); ++ spin_unlock_bh(&gr_conn_table_lock); ++ return; ++ } ++ spin_unlock_bh(&gr_conn_table_lock); ++ ++ set->curr_ip = inet->inet_daddr; ++ set->used_accept = 1; ++#endif ++ return; ++} ++ ++int ++gr_handle_sock_all(const int family, const int type, const int protocol) ++{ ++#ifdef CONFIG_GRKERNSEC_SOCKET_ALL ++ if (grsec_enable_socket_all && in_group_p(grsec_socket_all_gid) && ++ (family != AF_UNIX)) { ++ if (family == AF_INET) ++ gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, gr_sockfamily_to_name(family), gr_socktype_to_name(type), gr_proto_to_name(protocol)); ++ else ++ gr_log_str2_int(GR_DONT_AUDIT, GR_SOCK_NOINET_MSG, gr_sockfamily_to_name(family), gr_socktype_to_name(type), protocol); ++ return -EACCES; ++ } ++#endif ++ return 0; ++} ++ ++int ++gr_handle_sock_server(const struct sockaddr *sck) ++{ ++#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER ++ if (grsec_enable_socket_server && ++ in_group_p(grsec_socket_server_gid) && ++ sck && (sck->sa_family != AF_UNIX) && ++ (sck->sa_family != AF_LOCAL)) { ++ gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG); ++ return -EACCES; ++ } ++#endif ++ return 0; ++} ++ ++int ++gr_handle_sock_server_other(const struct sock *sck) ++{ ++#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER ++ if (grsec_enable_socket_server && ++ in_group_p(grsec_socket_server_gid) && ++ sck && (sck->sk_family != AF_UNIX) && ++ (sck->sk_family != AF_LOCAL)) { ++ gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG); ++ return -EACCES; ++ } ++#endif ++ return 0; ++} ++ ++int ++gr_handle_sock_client(const struct sockaddr *sck) ++{ ++#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT ++ if (grsec_enable_socket_client && in_group_p(grsec_socket_client_gid) && ++ sck && (sck->sa_family != AF_UNIX) && ++ (sck->sa_family != AF_LOCAL)) { ++ gr_log_noargs(GR_DONT_AUDIT, GR_CONNECT_MSG); ++ return -EACCES; ++ } ++#endif ++ return 0; ++} +diff --git a/grsecurity/grsec_sysctl.c b/grsecurity/grsec_sysctl.c +new file mode 100644 +index 0000000..f55ef0f +--- /dev/null ++++ b/grsecurity/grsec_sysctl.c +@@ -0,0 +1,469 @@ ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/sysctl.h> ++#include <linux/grsecurity.h> ++#include <linux/grinternal.h> ++ ++int ++gr_handle_sysctl_mod(const char *dirname, const char *name, const int op) ++{ ++#ifdef CONFIG_GRKERNSEC_SYSCTL ++ if (dirname == NULL || name == NULL) ++ return 0; ++ if (!strcmp(dirname, "grsecurity") && grsec_lock && (op & MAY_WRITE)) { ++ gr_log_str(GR_DONT_AUDIT, GR_SYSCTL_MSG, name); ++ return -EACCES; ++ } ++#endif ++ return 0; ++} ++ ++#ifdef CONFIG_GRKERNSEC_ROFS ++static int __maybe_unused one = 1; ++#endif ++ ++#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_ROFS) ++struct ctl_table grsecurity_table[] = { ++#ifdef CONFIG_GRKERNSEC_SYSCTL ++#ifdef CONFIG_GRKERNSEC_SYSCTL_DISTRO ++#ifdef CONFIG_GRKERNSEC_IO ++ { ++ .procname = "disable_priv_io", ++ .data = &grsec_disable_privio, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#endif ++#ifdef CONFIG_GRKERNSEC_LINK ++ { ++ .procname = "linking_restrictions", ++ .data = &grsec_enable_link, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_SYMLINKOWN ++ { ++ .procname = "enforce_symlinksifowner", ++ .data = &grsec_enable_symlinkown, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++ { ++ .procname = "symlinkown_gid", ++ .data = &grsec_symlinkown_gid, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_BRUTE ++ { ++ .procname = "deter_bruteforce", ++ .data = &grsec_enable_brute, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_FIFO ++ { ++ .procname = "fifo_restrictions", ++ .data = &grsec_enable_fifo, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC ++ { ++ .procname = "ptrace_readexec", ++ .data = &grsec_enable_ptrace_readexec, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_SETXID ++ { ++ .procname = "consistent_setxid", ++ .data = &grsec_enable_setxid, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++ { ++ .procname = "ip_blackhole", ++ .data = &grsec_enable_blackhole, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++ { ++ .procname = "lastack_retries", ++ .data = &grsec_lastack_retries, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_EXECLOG ++ { ++ .procname = "exec_logging", ++ .data = &grsec_enable_execlog, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG ++ { ++ .procname = "rwxmap_logging", ++ .data = &grsec_enable_log_rwxmaps, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_SIGNAL ++ { ++ .procname = "signal_logging", ++ .data = &grsec_enable_signal, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_FORKFAIL ++ { ++ .procname = "forkfail_logging", ++ .data = &grsec_enable_forkfail, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_TIME ++ { ++ .procname = "timechange_logging", ++ .data = &grsec_enable_time, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT ++ { ++ .procname = "chroot_deny_shmat", ++ .data = &grsec_enable_chroot_shmat, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX ++ { ++ .procname = "chroot_deny_unix", ++ .data = &grsec_enable_chroot_unix, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT ++ { ++ .procname = "chroot_deny_mount", ++ .data = &grsec_enable_chroot_mount, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR ++ { ++ .procname = "chroot_deny_fchdir", ++ .data = &grsec_enable_chroot_fchdir, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE ++ { ++ .procname = "chroot_deny_chroot", ++ .data = &grsec_enable_chroot_double, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT ++ { ++ .procname = "chroot_deny_pivot", ++ .data = &grsec_enable_chroot_pivot, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR ++ { ++ .procname = "chroot_enforce_chdir", ++ .data = &grsec_enable_chroot_chdir, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD ++ { ++ .procname = "chroot_deny_chmod", ++ .data = &grsec_enable_chroot_chmod, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD ++ { ++ .procname = "chroot_deny_mknod", ++ .data = &grsec_enable_chroot_mknod, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_NICE ++ { ++ .procname = "chroot_restrict_nice", ++ .data = &grsec_enable_chroot_nice, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG ++ { ++ .procname = "chroot_execlog", ++ .data = &grsec_enable_chroot_execlog, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS ++ { ++ .procname = "chroot_caps", ++ .data = &grsec_enable_chroot_caps, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL ++ { ++ .procname = "chroot_deny_sysctl", ++ .data = &grsec_enable_chroot_sysctl, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_TPE ++ { ++ .procname = "tpe", ++ .data = &grsec_enable_tpe, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++ { ++ .procname = "tpe_gid", ++ .data = &grsec_tpe_gid, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_TPE_INVERT ++ { ++ .procname = "tpe_invert", ++ .data = &grsec_enable_tpe_invert, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_TPE_ALL ++ { ++ .procname = "tpe_restrict_all", ++ .data = &grsec_enable_tpe_all, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_SOCKET_ALL ++ { ++ .procname = "socket_all", ++ .data = &grsec_enable_socket_all, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++ { ++ .procname = "socket_all_gid", ++ .data = &grsec_socket_all_gid, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT ++ { ++ .procname = "socket_client", ++ .data = &grsec_enable_socket_client, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++ { ++ .procname = "socket_client_gid", ++ .data = &grsec_socket_client_gid, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER ++ { ++ .procname = "socket_server", ++ .data = &grsec_enable_socket_server, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++ { ++ .procname = "socket_server_gid", ++ .data = &grsec_socket_server_gid, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP ++ { ++ .procname = "audit_group", ++ .data = &grsec_enable_group, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++ { ++ .procname = "audit_gid", ++ .data = &grsec_audit_gid, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR ++ { ++ .procname = "audit_chdir", ++ .data = &grsec_enable_chdir, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT ++ { ++ .procname = "audit_mount", ++ .data = &grsec_enable_mount, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL ++ { ++ .procname = "audit_textrel", ++ .data = &grsec_enable_audit_textrel, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_DMESG ++ { ++ .procname = "dmesg", ++ .data = &grsec_enable_dmesg, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK ++ { ++ .procname = "chroot_findtask", ++ .data = &grsec_enable_chroot_findtask, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_RESLOG ++ { ++ .procname = "resource_logging", ++ .data = &grsec_resource_logging, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE ++ { ++ .procname = "audit_ptrace", ++ .data = &grsec_enable_audit_ptrace, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE ++ { ++ .procname = "harden_ptrace", ++ .data = &grsec_enable_harden_ptrace, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++ { ++ .procname = "grsec_lock", ++ .data = &grsec_lock, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++#endif ++#ifdef CONFIG_GRKERNSEC_ROFS ++ { ++ .procname = "romount_protect", ++ .data = &grsec_enable_rofs, ++ .maxlen = sizeof(int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec_minmax, ++ .extra1 = &one, ++ .extra2 = &one, ++ }, ++#endif ++ { } ++}; ++#endif +diff --git a/grsecurity/grsec_time.c b/grsecurity/grsec_time.c +new file mode 100644 +index 0000000..0dc13c3 +--- /dev/null ++++ b/grsecurity/grsec_time.c +@@ -0,0 +1,16 @@ ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/grinternal.h> ++#include <linux/module.h> ++ ++void ++gr_log_timechange(void) ++{ ++#ifdef CONFIG_GRKERNSEC_TIME ++ if (grsec_enable_time) ++ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_TIME_MSG); ++#endif ++ return; ++} ++ ++EXPORT_SYMBOL(gr_log_timechange); +diff --git a/grsecurity/grsec_tpe.c b/grsecurity/grsec_tpe.c +new file mode 100644 +index 0000000..07e0dc0 +--- /dev/null ++++ b/grsecurity/grsec_tpe.c +@@ -0,0 +1,73 @@ ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/file.h> ++#include <linux/fs.h> ++#include <linux/grinternal.h> ++ ++extern int gr_acl_tpe_check(void); ++ ++int ++gr_tpe_allow(const struct file *file) ++{ ++#ifdef CONFIG_GRKERNSEC ++ struct inode *inode = file->f_path.dentry->d_parent->d_inode; ++ const struct cred *cred = current_cred(); ++ char *msg = NULL; ++ char *msg2 = NULL; ++ ++ // never restrict root ++ if (!cred->uid) ++ return 1; ++ ++ if (grsec_enable_tpe) { ++#ifdef CONFIG_GRKERNSEC_TPE_INVERT ++ if (grsec_enable_tpe_invert && !in_group_p(grsec_tpe_gid)) ++ msg = "not being in trusted group"; ++ else if (!grsec_enable_tpe_invert && in_group_p(grsec_tpe_gid)) ++ msg = "being in untrusted group"; ++#else ++ if (in_group_p(grsec_tpe_gid)) ++ msg = "being in untrusted group"; ++#endif ++ } ++ if (!msg && gr_acl_tpe_check()) ++ msg = "being in untrusted role"; ++ ++ // not in any affected group/role ++ if (!msg) ++ goto next_check; ++ ++ if (inode->i_uid) ++ msg2 = "file in non-root-owned directory"; ++ else if (inode->i_mode & S_IWOTH) ++ msg2 = "file in world-writable directory"; ++ else if (inode->i_mode & S_IWGRP) ++ msg2 = "file in group-writable directory"; ++ ++ if (msg && msg2) { ++ char fullmsg[70] = {0}; ++ snprintf(fullmsg, sizeof(fullmsg)-1, "%s and %s", msg, msg2); ++ gr_log_str_fs(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, fullmsg, file->f_path.dentry, file->f_path.mnt); ++ return 0; ++ } ++ msg = NULL; ++next_check: ++#ifdef CONFIG_GRKERNSEC_TPE_ALL ++ if (!grsec_enable_tpe || !grsec_enable_tpe_all) ++ return 1; ++ ++ if (inode->i_uid && (inode->i_uid != cred->uid)) ++ msg = "directory not owned by user"; ++ else if (inode->i_mode & S_IWOTH) ++ msg = "file in world-writable directory"; ++ else if (inode->i_mode & S_IWGRP) ++ msg = "file in group-writable directory"; ++ ++ if (msg) { ++ gr_log_str_fs(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, msg, file->f_path.dentry, file->f_path.mnt); ++ return 0; ++ } ++#endif ++#endif ++ return 1; ++} +diff --git a/grsecurity/grsum.c b/grsecurity/grsum.c +new file mode 100644 +index 0000000..9f7b1ac +--- /dev/null ++++ b/grsecurity/grsum.c +@@ -0,0 +1,61 @@ ++#include <linux/err.h> ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/mm.h> ++#include <linux/scatterlist.h> ++#include <linux/crypto.h> ++#include <linux/gracl.h> ++ ++ ++#if !defined(CONFIG_CRYPTO) || defined(CONFIG_CRYPTO_MODULE) || !defined(CONFIG_CRYPTO_SHA256) || defined(CONFIG_CRYPTO_SHA256_MODULE) ++#error "crypto and sha256 must be built into the kernel" ++#endif ++ ++int ++chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum) ++{ ++ char *p; ++ struct crypto_hash *tfm; ++ struct hash_desc desc; ++ struct scatterlist sg; ++ unsigned char temp_sum[GR_SHA_LEN]; ++ volatile int retval = 0; ++ volatile int dummy = 0; ++ unsigned int i; ++ ++ sg_init_table(&sg, 1); ++ ++ tfm = crypto_alloc_hash("sha256", 0, CRYPTO_ALG_ASYNC); ++ if (IS_ERR(tfm)) { ++ /* should never happen, since sha256 should be built in */ ++ return 1; ++ } ++ ++ desc.tfm = tfm; ++ desc.flags = 0; ++ ++ crypto_hash_init(&desc); ++ ++ p = salt; ++ sg_set_buf(&sg, p, GR_SALT_LEN); ++ crypto_hash_update(&desc, &sg, sg.length); ++ ++ p = entry->pw; ++ sg_set_buf(&sg, p, strlen(p)); ++ ++ crypto_hash_update(&desc, &sg, sg.length); ++ ++ crypto_hash_final(&desc, temp_sum); ++ ++ memset(entry->pw, 0, GR_PW_LEN); ++ ++ for (i = 0; i < GR_SHA_LEN; i++) ++ if (sum[i] != temp_sum[i]) ++ retval = 1; ++ else ++ dummy = 1; // waste a cycle ++ ++ crypto_free_hash(tfm); ++ ++ return retval; ++} +diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h +index f1c8ca6..b5c1cc7 100644 +--- a/include/acpi/acpi_bus.h ++++ b/include/acpi/acpi_bus.h +@@ -107,7 +107,7 @@ struct acpi_device_ops { + acpi_op_bind bind; + acpi_op_unbind unbind; + acpi_op_notify notify; +-}; ++} __no_const; + + #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */ + +diff --git a/include/asm-generic/atomic-long.h b/include/asm-generic/atomic-long.h +index b7babf0..3ba8aee 100644 +--- a/include/asm-generic/atomic-long.h ++++ b/include/asm-generic/atomic-long.h +@@ -22,6 +22,12 @@ + + typedef atomic64_t atomic_long_t; + ++#ifdef CONFIG_PAX_REFCOUNT ++typedef atomic64_unchecked_t atomic_long_unchecked_t; ++#else ++typedef atomic64_t atomic_long_unchecked_t; ++#endif ++ + #define ATOMIC_LONG_INIT(i) ATOMIC64_INIT(i) + + static inline long atomic_long_read(atomic_long_t *l) +@@ -31,6 +37,15 @@ static inline long atomic_long_read(atomic_long_t *l) + return (long)atomic64_read(v); + } + ++#ifdef CONFIG_PAX_REFCOUNT ++static inline long atomic_long_read_unchecked(atomic_long_unchecked_t *l) ++{ ++ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l; ++ ++ return (long)atomic64_read_unchecked(v); ++} ++#endif ++ + static inline void atomic_long_set(atomic_long_t *l, long i) + { + atomic64_t *v = (atomic64_t *)l; +@@ -38,6 +53,15 @@ static inline void atomic_long_set(atomic_long_t *l, long i) + atomic64_set(v, i); + } + ++#ifdef CONFIG_PAX_REFCOUNT ++static inline void atomic_long_set_unchecked(atomic_long_unchecked_t *l, long i) ++{ ++ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l; ++ ++ atomic64_set_unchecked(v, i); ++} ++#endif ++ + static inline void atomic_long_inc(atomic_long_t *l) + { + atomic64_t *v = (atomic64_t *)l; +@@ -45,6 +69,15 @@ static inline void atomic_long_inc(atomic_long_t *l) + atomic64_inc(v); + } + ++#ifdef CONFIG_PAX_REFCOUNT ++static inline void atomic_long_inc_unchecked(atomic_long_unchecked_t *l) ++{ ++ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l; ++ ++ atomic64_inc_unchecked(v); ++} ++#endif ++ + static inline void atomic_long_dec(atomic_long_t *l) + { + atomic64_t *v = (atomic64_t *)l; +@@ -52,6 +85,15 @@ static inline void atomic_long_dec(atomic_long_t *l) + atomic64_dec(v); + } + ++#ifdef CONFIG_PAX_REFCOUNT ++static inline void atomic_long_dec_unchecked(atomic_long_unchecked_t *l) ++{ ++ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l; ++ ++ atomic64_dec_unchecked(v); ++} ++#endif ++ + static inline void atomic_long_add(long i, atomic_long_t *l) + { + atomic64_t *v = (atomic64_t *)l; +@@ -59,6 +101,15 @@ static inline void atomic_long_add(long i, atomic_long_t *l) + atomic64_add(i, v); + } + ++#ifdef CONFIG_PAX_REFCOUNT ++static inline void atomic_long_add_unchecked(long i, atomic_long_unchecked_t *l) ++{ ++ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l; ++ ++ atomic64_add_unchecked(i, v); ++} ++#endif ++ + static inline void atomic_long_sub(long i, atomic_long_t *l) + { + atomic64_t *v = (atomic64_t *)l; +@@ -66,6 +117,15 @@ static inline void atomic_long_sub(long i, atomic_long_t *l) + atomic64_sub(i, v); + } + ++#ifdef CONFIG_PAX_REFCOUNT ++static inline void atomic_long_sub_unchecked(long i, atomic_long_unchecked_t *l) ++{ ++ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l; ++ ++ atomic64_sub_unchecked(i, v); ++} ++#endif ++ + static inline int atomic_long_sub_and_test(long i, atomic_long_t *l) + { + atomic64_t *v = (atomic64_t *)l; +@@ -115,6 +175,15 @@ static inline long atomic_long_inc_return(atomic_long_t *l) + return (long)atomic64_inc_return(v); + } + ++#ifdef CONFIG_PAX_REFCOUNT ++static inline long atomic_long_inc_return_unchecked(atomic_long_unchecked_t *l) ++{ ++ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l; ++ ++ return (long)atomic64_inc_return_unchecked(v); ++} ++#endif ++ + static inline long atomic_long_dec_return(atomic_long_t *l) + { + atomic64_t *v = (atomic64_t *)l; +@@ -140,6 +209,12 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u) + + typedef atomic_t atomic_long_t; + ++#ifdef CONFIG_PAX_REFCOUNT ++typedef atomic_unchecked_t atomic_long_unchecked_t; ++#else ++typedef atomic_t atomic_long_unchecked_t; ++#endif ++ + #define ATOMIC_LONG_INIT(i) ATOMIC_INIT(i) + static inline long atomic_long_read(atomic_long_t *l) + { +@@ -148,6 +223,15 @@ static inline long atomic_long_read(atomic_long_t *l) + return (long)atomic_read(v); + } + ++#ifdef CONFIG_PAX_REFCOUNT ++static inline long atomic_long_read_unchecked(atomic_long_unchecked_t *l) ++{ ++ atomic_unchecked_t *v = (atomic_unchecked_t *)l; ++ ++ return (long)atomic_read_unchecked(v); ++} ++#endif ++ + static inline void atomic_long_set(atomic_long_t *l, long i) + { + atomic_t *v = (atomic_t *)l; +@@ -155,6 +239,15 @@ static inline void atomic_long_set(atomic_long_t *l, long i) + atomic_set(v, i); + } + ++#ifdef CONFIG_PAX_REFCOUNT ++static inline void atomic_long_set_unchecked(atomic_long_unchecked_t *l, long i) ++{ ++ atomic_unchecked_t *v = (atomic_unchecked_t *)l; ++ ++ atomic_set_unchecked(v, i); ++} ++#endif ++ + static inline void atomic_long_inc(atomic_long_t *l) + { + atomic_t *v = (atomic_t *)l; +@@ -162,6 +255,15 @@ static inline void atomic_long_inc(atomic_long_t *l) + atomic_inc(v); + } + ++#ifdef CONFIG_PAX_REFCOUNT ++static inline void atomic_long_inc_unchecked(atomic_long_unchecked_t *l) ++{ ++ atomic_unchecked_t *v = (atomic_unchecked_t *)l; ++ ++ atomic_inc_unchecked(v); ++} ++#endif ++ + static inline void atomic_long_dec(atomic_long_t *l) + { + atomic_t *v = (atomic_t *)l; +@@ -169,6 +271,15 @@ static inline void atomic_long_dec(atomic_long_t *l) + atomic_dec(v); + } + ++#ifdef CONFIG_PAX_REFCOUNT ++static inline void atomic_long_dec_unchecked(atomic_long_unchecked_t *l) ++{ ++ atomic_unchecked_t *v = (atomic_unchecked_t *)l; ++ ++ atomic_dec_unchecked(v); ++} ++#endif ++ + static inline void atomic_long_add(long i, atomic_long_t *l) + { + atomic_t *v = (atomic_t *)l; +@@ -176,6 +287,15 @@ static inline void atomic_long_add(long i, atomic_long_t *l) + atomic_add(i, v); + } + ++#ifdef CONFIG_PAX_REFCOUNT ++static inline void atomic_long_add_unchecked(long i, atomic_long_unchecked_t *l) ++{ ++ atomic_unchecked_t *v = (atomic_unchecked_t *)l; ++ ++ atomic_add_unchecked(i, v); ++} ++#endif ++ + static inline void atomic_long_sub(long i, atomic_long_t *l) + { + atomic_t *v = (atomic_t *)l; +@@ -183,6 +303,15 @@ static inline void atomic_long_sub(long i, atomic_long_t *l) + atomic_sub(i, v); + } + ++#ifdef CONFIG_PAX_REFCOUNT ++static inline void atomic_long_sub_unchecked(long i, atomic_long_unchecked_t *l) ++{ ++ atomic_unchecked_t *v = (atomic_unchecked_t *)l; ++ ++ atomic_sub_unchecked(i, v); ++} ++#endif ++ + static inline int atomic_long_sub_and_test(long i, atomic_long_t *l) + { + atomic_t *v = (atomic_t *)l; +@@ -232,6 +361,15 @@ static inline long atomic_long_inc_return(atomic_long_t *l) + return (long)atomic_inc_return(v); + } + ++#ifdef CONFIG_PAX_REFCOUNT ++static inline long atomic_long_inc_return_unchecked(atomic_long_unchecked_t *l) ++{ ++ atomic_unchecked_t *v = (atomic_unchecked_t *)l; ++ ++ return (long)atomic_inc_return_unchecked(v); ++} ++#endif ++ + static inline long atomic_long_dec_return(atomic_long_t *l) + { + atomic_t *v = (atomic_t *)l; +@@ -255,4 +393,55 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u) + + #endif /* BITS_PER_LONG == 64 */ + ++#ifdef CONFIG_PAX_REFCOUNT ++static inline void pax_refcount_needs_these_functions(void) ++{ ++ atomic_read_unchecked((atomic_unchecked_t *)NULL); ++ atomic_set_unchecked((atomic_unchecked_t *)NULL, 0); ++ atomic_add_unchecked(0, (atomic_unchecked_t *)NULL); ++ atomic_sub_unchecked(0, (atomic_unchecked_t *)NULL); ++ atomic_inc_unchecked((atomic_unchecked_t *)NULL); ++ (void)atomic_inc_and_test_unchecked((atomic_unchecked_t *)NULL); ++ atomic_inc_return_unchecked((atomic_unchecked_t *)NULL); ++ atomic_add_return_unchecked(0, (atomic_unchecked_t *)NULL); ++ atomic_dec_unchecked((atomic_unchecked_t *)NULL); ++ atomic_cmpxchg_unchecked((atomic_unchecked_t *)NULL, 0, 0); ++ (void)atomic_xchg_unchecked((atomic_unchecked_t *)NULL, 0); ++#ifdef CONFIG_X86 ++ atomic_clear_mask_unchecked(0, NULL); ++ atomic_set_mask_unchecked(0, NULL); ++#endif ++ ++ atomic_long_read_unchecked((atomic_long_unchecked_t *)NULL); ++ atomic_long_set_unchecked((atomic_long_unchecked_t *)NULL, 0); ++ atomic_long_add_unchecked(0, (atomic_long_unchecked_t *)NULL); ++ atomic_long_sub_unchecked(0, (atomic_long_unchecked_t *)NULL); ++ atomic_long_inc_unchecked((atomic_long_unchecked_t *)NULL); ++ atomic_long_inc_return_unchecked((atomic_long_unchecked_t *)NULL); ++ atomic_long_dec_unchecked((atomic_long_unchecked_t *)NULL); ++} ++#else ++#define atomic_read_unchecked(v) atomic_read(v) ++#define atomic_set_unchecked(v, i) atomic_set((v), (i)) ++#define atomic_add_unchecked(i, v) atomic_add((i), (v)) ++#define atomic_sub_unchecked(i, v) atomic_sub((i), (v)) ++#define atomic_inc_unchecked(v) atomic_inc(v) ++#define atomic_inc_and_test_unchecked(v) atomic_inc_and_test(v) ++#define atomic_inc_return_unchecked(v) atomic_inc_return(v) ++#define atomic_add_return_unchecked(i, v) atomic_add_return((i), (v)) ++#define atomic_dec_unchecked(v) atomic_dec(v) ++#define atomic_cmpxchg_unchecked(v, o, n) atomic_cmpxchg((v), (o), (n)) ++#define atomic_xchg_unchecked(v, i) atomic_xchg((v), (i)) ++#define atomic_clear_mask_unchecked(mask, v) atomic_clear_mask((mask), (v)) ++#define atomic_set_mask_unchecked(mask, v) atomic_set_mask((mask), (v)) ++ ++#define atomic_long_read_unchecked(v) atomic_long_read(v) ++#define atomic_long_set_unchecked(v, i) atomic_long_set((v), (i)) ++#define atomic_long_add_unchecked(i, v) atomic_long_add((i), (v)) ++#define atomic_long_sub_unchecked(i, v) atomic_long_sub((i), (v)) ++#define atomic_long_inc_unchecked(v) atomic_long_inc(v) ++#define atomic_long_inc_return_unchecked(v) atomic_long_inc_return(v) ++#define atomic_long_dec_unchecked(v) atomic_long_dec(v) ++#endif ++ + #endif /* _ASM_GENERIC_ATOMIC_LONG_H */ +diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h +index 1ced641..c896ee8 100644 +--- a/include/asm-generic/atomic.h ++++ b/include/asm-generic/atomic.h +@@ -159,7 +159,7 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u) + * Atomically clears the bits set in @mask from @v + */ + #ifndef atomic_clear_mask +-static inline void atomic_clear_mask(unsigned long mask, atomic_t *v) ++static inline void atomic_clear_mask(unsigned int mask, atomic_t *v) + { + unsigned long flags; + +diff --git a/include/asm-generic/atomic64.h b/include/asm-generic/atomic64.h +index b18ce4f..2ee2843 100644 +--- a/include/asm-generic/atomic64.h ++++ b/include/asm-generic/atomic64.h +@@ -16,6 +16,8 @@ typedef struct { + long long counter; + } atomic64_t; + ++typedef atomic64_t atomic64_unchecked_t; ++ + #define ATOMIC64_INIT(i) { (i) } + + extern long long atomic64_read(const atomic64_t *v); +@@ -39,4 +41,14 @@ extern int atomic64_add_unless(atomic64_t *v, long long a, long long u); + #define atomic64_dec_and_test(v) (atomic64_dec_return((v)) == 0) + #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1LL, 0LL) + ++#define atomic64_read_unchecked(v) atomic64_read(v) ++#define atomic64_set_unchecked(v, i) atomic64_set((v), (i)) ++#define atomic64_add_unchecked(a, v) atomic64_add((a), (v)) ++#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v)) ++#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v)) ++#define atomic64_inc_unchecked(v) atomic64_inc(v) ++#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v) ++#define atomic64_dec_unchecked(v) atomic64_dec(v) ++#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n)) ++ + #endif /* _ASM_GENERIC_ATOMIC64_H */ +diff --git a/include/asm-generic/cache.h b/include/asm-generic/cache.h +index 1bfcfe5..e04c5c9 100644 +--- a/include/asm-generic/cache.h ++++ b/include/asm-generic/cache.h +@@ -6,7 +6,7 @@ + * cache lines need to provide their own cache.h. + */ + +-#define L1_CACHE_SHIFT 5 +-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) ++#define L1_CACHE_SHIFT 5UL ++#define L1_CACHE_BYTES (1UL << L1_CACHE_SHIFT) + + #endif /* __ASM_GENERIC_CACHE_H */ +diff --git a/include/asm-generic/emergency-restart.h b/include/asm-generic/emergency-restart.h +index 0d68a1e..b74a761 100644 +--- a/include/asm-generic/emergency-restart.h ++++ b/include/asm-generic/emergency-restart.h +@@ -1,7 +1,7 @@ + #ifndef _ASM_GENERIC_EMERGENCY_RESTART_H + #define _ASM_GENERIC_EMERGENCY_RESTART_H + +-static inline void machine_emergency_restart(void) ++static inline __noreturn void machine_emergency_restart(void) + { + machine_restart(NULL); + } +diff --git a/include/asm-generic/kmap_types.h b/include/asm-generic/kmap_types.h +index 0232ccb..13d9165 100644 +--- a/include/asm-generic/kmap_types.h ++++ b/include/asm-generic/kmap_types.h +@@ -29,10 +29,11 @@ KMAP_D(16) KM_IRQ_PTE, + KMAP_D(17) KM_NMI, + KMAP_D(18) KM_NMI_PTE, + KMAP_D(19) KM_KDB, ++KMAP_D(20) KM_CLEARPAGE, + /* + * Remember to update debug_kmap_atomic() when adding new kmap types! + */ +-KMAP_D(20) KM_TYPE_NR ++KMAP_D(21) KM_TYPE_NR + }; + + #undef KMAP_D +diff --git a/include/asm-generic/local.h b/include/asm-generic/local.h +index 9ceb03b..2efbcbd 100644 +--- a/include/asm-generic/local.h ++++ b/include/asm-generic/local.h +@@ -39,6 +39,7 @@ typedef struct + #define local_add_return(i, l) atomic_long_add_return((i), (&(l)->a)) + #define local_sub_return(i, l) atomic_long_sub_return((i), (&(l)->a)) + #define local_inc_return(l) atomic_long_inc_return(&(l)->a) ++#define local_dec_return(l) atomic_long_dec_return(&(l)->a) + + #define local_cmpxchg(l, o, n) atomic_long_cmpxchg((&(l)->a), (o), (n)) + #define local_xchg(l, n) atomic_long_xchg((&(l)->a), (n)) +diff --git a/include/asm-generic/pgtable-nopmd.h b/include/asm-generic/pgtable-nopmd.h +index 725612b..9cc513a 100644 +--- a/include/asm-generic/pgtable-nopmd.h ++++ b/include/asm-generic/pgtable-nopmd.h +@@ -1,14 +1,19 @@ + #ifndef _PGTABLE_NOPMD_H + #define _PGTABLE_NOPMD_H + +-#ifndef __ASSEMBLY__ +- + #include <asm-generic/pgtable-nopud.h> + +-struct mm_struct; +- + #define __PAGETABLE_PMD_FOLDED + ++#define PMD_SHIFT PUD_SHIFT ++#define PTRS_PER_PMD 1 ++#define PMD_SIZE (_AC(1,UL) << PMD_SHIFT) ++#define PMD_MASK (~(PMD_SIZE-1)) ++ ++#ifndef __ASSEMBLY__ ++ ++struct mm_struct; ++ + /* + * Having the pmd type consist of a pud gets the size right, and allows + * us to conceptually access the pud entry that this pmd is folded into +@@ -16,11 +21,6 @@ struct mm_struct; + */ + typedef struct { pud_t pud; } pmd_t; + +-#define PMD_SHIFT PUD_SHIFT +-#define PTRS_PER_PMD 1 +-#define PMD_SIZE (1UL << PMD_SHIFT) +-#define PMD_MASK (~(PMD_SIZE-1)) +- + /* + * The "pud_xxx()" functions here are trivial for a folded two-level + * setup: the pmd is never bad, and a pmd always exists (as it's folded +diff --git a/include/asm-generic/pgtable-nopud.h b/include/asm-generic/pgtable-nopud.h +index 810431d..0ec4804f 100644 +--- a/include/asm-generic/pgtable-nopud.h ++++ b/include/asm-generic/pgtable-nopud.h +@@ -1,10 +1,15 @@ + #ifndef _PGTABLE_NOPUD_H + #define _PGTABLE_NOPUD_H + +-#ifndef __ASSEMBLY__ +- + #define __PAGETABLE_PUD_FOLDED + ++#define PUD_SHIFT PGDIR_SHIFT ++#define PTRS_PER_PUD 1 ++#define PUD_SIZE (_AC(1,UL) << PUD_SHIFT) ++#define PUD_MASK (~(PUD_SIZE-1)) ++ ++#ifndef __ASSEMBLY__ ++ + /* + * Having the pud type consist of a pgd gets the size right, and allows + * us to conceptually access the pgd entry that this pud is folded into +@@ -12,11 +17,6 @@ + */ + typedef struct { pgd_t pgd; } pud_t; + +-#define PUD_SHIFT PGDIR_SHIFT +-#define PTRS_PER_PUD 1 +-#define PUD_SIZE (1UL << PUD_SHIFT) +-#define PUD_MASK (~(PUD_SIZE-1)) +- + /* + * The "pgd_xxx()" functions here are trivial for a folded two-level + * setup: the pud is never bad, and a pud always exists (as it's folded +@@ -29,6 +29,7 @@ static inline void pgd_clear(pgd_t *pgd) { } + #define pud_ERROR(pud) (pgd_ERROR((pud).pgd)) + + #define pgd_populate(mm, pgd, pud) do { } while (0) ++#define pgd_populate_kernel(mm, pgd, pud) do { } while (0) + /* + * (puds are folded into pgds so this doesn't get actually called, + * but the define is needed for a generic inline function.) +diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h +index c7ec2cd..909d125 100644 +--- a/include/asm-generic/pgtable.h ++++ b/include/asm-generic/pgtable.h +@@ -531,6 +531,14 @@ static inline int pmd_trans_unstable(pmd_t *pmd) + #endif + } + ++#ifndef __HAVE_ARCH_PAX_OPEN_KERNEL ++static inline unsigned long pax_open_kernel(void) { return 0; } ++#endif ++ ++#ifndef __HAVE_ARCH_PAX_CLOSE_KERNEL ++static inline unsigned long pax_close_kernel(void) { return 0; } ++#endif ++ + #endif /* CONFIG_MMU */ + + #endif /* !__ASSEMBLY__ */ +diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h +index 8aeadf6..f1dc019 100644 +--- a/include/asm-generic/vmlinux.lds.h ++++ b/include/asm-generic/vmlinux.lds.h +@@ -218,6 +218,7 @@ + .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \ + VMLINUX_SYMBOL(__start_rodata) = .; \ + *(.rodata) *(.rodata.*) \ ++ *(.data..read_only) \ + *(__vermagic) /* Kernel version magic */ \ + . = ALIGN(8); \ + VMLINUX_SYMBOL(__start___tracepoints_ptrs) = .; \ +@@ -716,17 +717,18 @@ + * section in the linker script will go there too. @phdr should have + * a leading colon. + * +- * Note that this macros defines __per_cpu_load as an absolute symbol. ++ * Note that this macros defines per_cpu_load as an absolute symbol. + * If there is no need to put the percpu section at a predetermined + * address, use PERCPU_SECTION. + */ + #define PERCPU_VADDR(cacheline, vaddr, phdr) \ +- VMLINUX_SYMBOL(__per_cpu_load) = .; \ +- .data..percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load) \ ++ per_cpu_load = .; \ ++ .data..percpu vaddr : AT(VMLINUX_SYMBOL(per_cpu_load) \ + - LOAD_OFFSET) { \ ++ VMLINUX_SYMBOL(__per_cpu_load) = . + per_cpu_load; \ + PERCPU_INPUT(cacheline) \ + } phdr \ +- . = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data..percpu); ++ . = VMLINUX_SYMBOL(per_cpu_load) + SIZEOF(.data..percpu); + + /** + * PERCPU_SECTION - define output section for percpu area, simple version +diff --git a/include/drm/drmP.h b/include/drm/drmP.h +index dd73104..fde86bd 100644 +--- a/include/drm/drmP.h ++++ b/include/drm/drmP.h +@@ -72,6 +72,7 @@ + #include <linux/workqueue.h> + #include <linux/poll.h> + #include <asm/pgalloc.h> ++#include <asm/local.h> + #include "drm.h" + + #include <linux/idr.h> +@@ -1074,7 +1075,7 @@ struct drm_device { + + /** \name Usage Counters */ + /*@{ */ +- int open_count; /**< Outstanding files open */ ++ local_t open_count; /**< Outstanding files open */ + atomic_t ioctl_count; /**< Outstanding IOCTLs pending */ + atomic_t vma_count; /**< Outstanding vma areas open */ + int buf_use; /**< Buffers in use -- cannot alloc */ +@@ -1085,7 +1086,7 @@ struct drm_device { + /*@{ */ + unsigned long counters; + enum drm_stat_type types[15]; +- atomic_t counts[15]; ++ atomic_unchecked_t counts[15]; + /*@} */ + + struct list_head filelist; +diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h +index 37515d1..34fa8b0 100644 +--- a/include/drm/drm_crtc_helper.h ++++ b/include/drm/drm_crtc_helper.h +@@ -74,7 +74,7 @@ struct drm_crtc_helper_funcs { + + /* disable crtc when not in use - more explicit than dpms off */ + void (*disable)(struct drm_crtc *crtc); +-}; ++} __no_const; + + struct drm_encoder_helper_funcs { + void (*dpms)(struct drm_encoder *encoder, int mode); +@@ -95,7 +95,7 @@ struct drm_encoder_helper_funcs { + struct drm_connector *connector); + /* disable encoder when not in use - more explicit than dpms off */ + void (*disable)(struct drm_encoder *encoder); +-}; ++} __no_const; + + struct drm_connector_helper_funcs { + int (*get_modes)(struct drm_connector *connector); +diff --git a/include/drm/ttm/ttm_memory.h b/include/drm/ttm/ttm_memory.h +index d6d1da4..fdd1ac5 100644 +--- a/include/drm/ttm/ttm_memory.h ++++ b/include/drm/ttm/ttm_memory.h +@@ -48,7 +48,7 @@ + + struct ttm_mem_shrink { + int (*do_shrink) (struct ttm_mem_shrink *); +-}; ++} __no_const; + + /** + * struct ttm_mem_global - Global memory accounting structure. +diff --git a/include/linux/a.out.h b/include/linux/a.out.h +index e86dfca..40cc55f 100644 +--- a/include/linux/a.out.h ++++ b/include/linux/a.out.h +@@ -39,6 +39,14 @@ enum machine_type { + M_MIPS2 = 152 /* MIPS R6000/R4000 binary */ + }; + ++/* Constants for the N_FLAGS field */ ++#define F_PAX_PAGEEXEC 1 /* Paging based non-executable pages */ ++#define F_PAX_EMUTRAMP 2 /* Emulate trampolines */ ++#define F_PAX_MPROTECT 4 /* Restrict mprotect() */ ++#define F_PAX_RANDMMAP 8 /* Randomize mmap() base */ ++/*#define F_PAX_RANDEXEC 16*/ /* Randomize ET_EXEC base */ ++#define F_PAX_SEGMEXEC 32 /* Segmentation based non-executable pages */ ++ + #if !defined (N_MAGIC) + #define N_MAGIC(exec) ((exec).a_info & 0xffff) + #endif +diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h +index 06fd4bb..1caec0d 100644 +--- a/include/linux/atmdev.h ++++ b/include/linux/atmdev.h +@@ -237,7 +237,7 @@ struct compat_atm_iobuf { + #endif + + struct k_atm_aal_stats { +-#define __HANDLE_ITEM(i) atomic_t i ++#define __HANDLE_ITEM(i) atomic_unchecked_t i + __AAL_STAT_ITEMS + #undef __HANDLE_ITEM + }; +diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h +index 366422b..1fa7f84 100644 +--- a/include/linux/binfmts.h ++++ b/include/linux/binfmts.h +@@ -89,6 +89,7 @@ struct linux_binfmt { + int (*load_binary)(struct linux_binprm *, struct pt_regs * regs); + int (*load_shlib)(struct file *); + int (*core_dump)(struct coredump_params *cprm); ++ void (*handle_mprotect)(struct vm_area_struct *vma, unsigned long newflags); + unsigned long min_coredump; /* minimal dump size */ + }; + +diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h +index 4d4ac24..2c3ccce 100644 +--- a/include/linux/blkdev.h ++++ b/include/linux/blkdev.h +@@ -1376,7 +1376,7 @@ struct block_device_operations { + /* this callback is with swap_lock and sometimes page table lock held */ + void (*swap_slot_free_notify) (struct block_device *, unsigned long); + struct module *owner; +-}; ++} __do_const; + + extern int __blkdev_driver_ioctl(struct block_device *, fmode_t, unsigned int, + unsigned long); +diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h +index 4d1a074..88f929a 100644 +--- a/include/linux/blktrace_api.h ++++ b/include/linux/blktrace_api.h +@@ -162,7 +162,7 @@ struct blk_trace { + struct dentry *dir; + struct dentry *dropped_file; + struct dentry *msg_file; +- atomic_t dropped; ++ atomic_unchecked_t dropped; + }; + + extern int blk_trace_ioctl(struct block_device *, unsigned, char __user *); +diff --git a/include/linux/byteorder/little_endian.h b/include/linux/byteorder/little_endian.h +index 83195fb..0b0f77d 100644 +--- a/include/linux/byteorder/little_endian.h ++++ b/include/linux/byteorder/little_endian.h +@@ -42,51 +42,51 @@ + + static inline __le64 __cpu_to_le64p(const __u64 *p) + { +- return (__force __le64)*p; ++ return (__force const __le64)*p; + } + static inline __u64 __le64_to_cpup(const __le64 *p) + { +- return (__force __u64)*p; ++ return (__force const __u64)*p; + } + static inline __le32 __cpu_to_le32p(const __u32 *p) + { +- return (__force __le32)*p; ++ return (__force const __le32)*p; + } + static inline __u32 __le32_to_cpup(const __le32 *p) + { +- return (__force __u32)*p; ++ return (__force const __u32)*p; + } + static inline __le16 __cpu_to_le16p(const __u16 *p) + { +- return (__force __le16)*p; ++ return (__force const __le16)*p; + } + static inline __u16 __le16_to_cpup(const __le16 *p) + { +- return (__force __u16)*p; ++ return (__force const __u16)*p; + } + static inline __be64 __cpu_to_be64p(const __u64 *p) + { +- return (__force __be64)__swab64p(p); ++ return (__force const __be64)__swab64p(p); + } + static inline __u64 __be64_to_cpup(const __be64 *p) + { +- return __swab64p((__u64 *)p); ++ return __swab64p((const __u64 *)p); + } + static inline __be32 __cpu_to_be32p(const __u32 *p) + { +- return (__force __be32)__swab32p(p); ++ return (__force const __be32)__swab32p(p); + } + static inline __u32 __be32_to_cpup(const __be32 *p) + { +- return __swab32p((__u32 *)p); ++ return __swab32p((const __u32 *)p); + } + static inline __be16 __cpu_to_be16p(const __u16 *p) + { +- return (__force __be16)__swab16p(p); ++ return (__force const __be16)__swab16p(p); + } + static inline __u16 __be16_to_cpup(const __be16 *p) + { +- return __swab16p((__u16 *)p); ++ return __swab16p((const __u16 *)p); + } + #define __cpu_to_le64s(x) do { (void)(x); } while (0) + #define __le64_to_cpus(x) do { (void)(x); } while (0) +diff --git a/include/linux/cache.h b/include/linux/cache.h +index 4c57065..4307975 100644 +--- a/include/linux/cache.h ++++ b/include/linux/cache.h +@@ -16,6 +16,10 @@ + #define __read_mostly + #endif + ++#ifndef __read_only ++#define __read_only __read_mostly ++#endif ++ + #ifndef ____cacheline_aligned + #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES))) + #endif +diff --git a/include/linux/capability.h b/include/linux/capability.h +index 12d52de..b5f7fa7 100644 +--- a/include/linux/capability.h ++++ b/include/linux/capability.h +@@ -548,6 +548,8 @@ extern bool has_ns_capability_noaudit(struct task_struct *t, + extern bool capable(int cap); + extern bool ns_capable(struct user_namespace *ns, int cap); + extern bool nsown_capable(int cap); ++extern bool capable_nolog(int cap); ++extern bool ns_capable_nolog(struct user_namespace *ns, int cap); + + /* audit system wants to get cap info from files as well */ + extern int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data *cpu_caps); +diff --git a/include/linux/cleancache.h b/include/linux/cleancache.h +index 42e55de..1cd0e66 100644 +--- a/include/linux/cleancache.h ++++ b/include/linux/cleancache.h +@@ -31,7 +31,7 @@ struct cleancache_ops { + void (*invalidate_page)(int, struct cleancache_filekey, pgoff_t); + void (*invalidate_inode)(int, struct cleancache_filekey); + void (*invalidate_fs)(int); +-}; ++} __no_const; + + extern struct cleancache_ops + cleancache_register_ops(struct cleancache_ops *ops); +diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h +index 2f40791..9c9e13c 100644 +--- a/include/linux/compiler-gcc4.h ++++ b/include/linux/compiler-gcc4.h +@@ -32,6 +32,20 @@ + #define __linktime_error(message) __attribute__((__error__(message))) + + #if __GNUC_MINOR__ >= 5 ++ ++#ifdef CONSTIFY_PLUGIN ++#define __no_const __attribute__((no_const)) ++#define __do_const __attribute__((do_const)) ++#endif ++ ++#ifdef SIZE_OVERFLOW_PLUGIN ++#define __size_overflow(...) __attribute__((size_overflow(__VA_ARGS__))) ++#endif ++ ++#ifdef LATENT_ENTROPY_PLUGIN ++#define __latent_entropy __attribute__((latent_entropy)) ++#endif ++ + /* + * Mark a position in code as unreachable. This can be used to + * suppress control flow warnings after asm blocks that transfer +@@ -47,6 +61,11 @@ + #define __noclone __attribute__((__noclone__)) + + #endif ++ ++#define __alloc_size(...) __attribute((alloc_size(__VA_ARGS__))) ++#define __bos(ptr, arg) __builtin_object_size((ptr), (arg)) ++#define __bos0(ptr) __bos((ptr), 0) ++#define __bos1(ptr) __bos((ptr), 1) + #endif + + #if __GNUC_MINOR__ > 0 +diff --git a/include/linux/compiler.h b/include/linux/compiler.h +index 923d093..1fef491 100644 +--- a/include/linux/compiler.h ++++ b/include/linux/compiler.h +@@ -5,31 +5,62 @@ + + #ifdef __CHECKER__ + # define __user __attribute__((noderef, address_space(1))) ++# define __force_user __force __user + # define __kernel __attribute__((address_space(0))) ++# define __force_kernel __force __kernel + # define __safe __attribute__((safe)) + # define __force __attribute__((force)) + # define __nocast __attribute__((nocast)) + # define __iomem __attribute__((noderef, address_space(2))) ++# define __force_iomem __force __iomem + # define __acquires(x) __attribute__((context(x,0,1))) + # define __releases(x) __attribute__((context(x,1,0))) + # define __acquire(x) __context__(x,1) + # define __release(x) __context__(x,-1) + # define __cond_lock(x,c) ((c) ? ({ __acquire(x); 1; }) : 0) + # define __percpu __attribute__((noderef, address_space(3))) ++# define __force_percpu __force __percpu + #ifdef CONFIG_SPARSE_RCU_POINTER + # define __rcu __attribute__((noderef, address_space(4))) ++# define __force_rcu __force __rcu + #else + # define __rcu ++# define __force_rcu + #endif + extern void __chk_user_ptr(const volatile void __user *); + extern void __chk_io_ptr(const volatile void __iomem *); ++#elif defined(CHECKER_PLUGIN) ++//# define __user ++//# define __force_user ++//# define __kernel ++//# define __force_kernel ++# define __safe ++# define __force ++# define __nocast ++# define __iomem ++# define __force_iomem ++# define __chk_user_ptr(x) (void)0 ++# define __chk_io_ptr(x) (void)0 ++# define __builtin_warning(x, y...) (1) ++# define __acquires(x) ++# define __releases(x) ++# define __acquire(x) (void)0 ++# define __release(x) (void)0 ++# define __cond_lock(x,c) (c) ++# define __percpu ++# define __force_percpu ++# define __rcu ++# define __force_rcu + #else + # define __user ++# define __force_user + # define __kernel ++# define __force_kernel + # define __safe + # define __force + # define __nocast + # define __iomem ++# define __force_iomem + # define __chk_user_ptr(x) (void)0 + # define __chk_io_ptr(x) (void)0 + # define __builtin_warning(x, y...) (1) +@@ -39,7 +70,9 @@ extern void __chk_io_ptr(const volatile void __iomem *); + # define __release(x) (void)0 + # define __cond_lock(x,c) (c) + # define __percpu ++# define __force_percpu + # define __rcu ++# define __force_rcu + #endif + + #ifdef __KERNEL__ +@@ -264,6 +297,22 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect); + # define __attribute_const__ /* unimplemented */ + #endif + ++#ifndef __no_const ++# define __no_const ++#endif ++ ++#ifndef __do_const ++# define __do_const ++#endif ++ ++#ifndef __size_overflow ++# define __size_overflow(...) ++#endif ++ ++#ifndef __latent_entropy ++# define __latent_entropy ++#endif ++ + /* + * Tell gcc if a function is cold. The compiler will assume any path + * directly leading to the call is unlikely. +@@ -273,6 +322,22 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect); + #define __cold + #endif + ++#ifndef __alloc_size ++#define __alloc_size(...) ++#endif ++ ++#ifndef __bos ++#define __bos(ptr, arg) ++#endif ++ ++#ifndef __bos0 ++#define __bos0(ptr) ++#endif ++ ++#ifndef __bos1 ++#define __bos1(ptr) ++#endif ++ + /* Simple shorthand for a section definition */ + #ifndef __section + # define __section(S) __attribute__ ((__section__(#S))) +@@ -308,6 +373,7 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect); + * use is to mediate communication between process-level code and irq/NMI + * handlers, all running on the same CPU. + */ +-#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x)) ++#define ACCESS_ONCE(x) (*(volatile const typeof(x) *)&(x)) ++#define ACCESS_ONCE_RW(x) (*(volatile typeof(x) *)&(x)) + + #endif /* __LINUX_COMPILER_H */ +diff --git a/include/linux/cred.h b/include/linux/cred.h +index adadf71..6af5560 100644 +--- a/include/linux/cred.h ++++ b/include/linux/cred.h +@@ -207,6 +207,9 @@ static inline void validate_creds_for_do_exit(struct task_struct *tsk) + static inline void validate_process_creds(void) + { + } ++static inline void validate_task_creds(struct task_struct *task) ++{ ++} + #endif + + /** +diff --git a/include/linux/crypto.h b/include/linux/crypto.h +index b92eadf..b4ecdc1 100644 +--- a/include/linux/crypto.h ++++ b/include/linux/crypto.h +@@ -373,7 +373,7 @@ struct cipher_tfm { + const u8 *key, unsigned int keylen); + void (*cit_encrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); + void (*cit_decrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); +-}; ++} __no_const; + + struct hash_tfm { + int (*init)(struct hash_desc *desc); +@@ -394,13 +394,13 @@ struct compress_tfm { + int (*cot_decompress)(struct crypto_tfm *tfm, + const u8 *src, unsigned int slen, + u8 *dst, unsigned int *dlen); +-}; ++} __no_const; + + struct rng_tfm { + int (*rng_gen_random)(struct crypto_rng *tfm, u8 *rdata, + unsigned int dlen); + int (*rng_reset)(struct crypto_rng *tfm, u8 *seed, unsigned int slen); +-}; ++} __no_const; + + #define crt_ablkcipher crt_u.ablkcipher + #define crt_aead crt_u.aead +diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h +index 7925bf0..d5143d2 100644 +--- a/include/linux/decompress/mm.h ++++ b/include/linux/decompress/mm.h +@@ -77,7 +77,7 @@ static void free(void *where) + * warnings when not needed (indeed large_malloc / large_free are not + * needed by inflate */ + +-#define malloc(a) kmalloc(a, GFP_KERNEL) ++#define malloc(a) kmalloc((a), GFP_KERNEL) + #define free(a) kfree(a) + + #define large_malloc(a) vmalloc(a) +diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h +index dfc099e..e583e66 100644 +--- a/include/linux/dma-mapping.h ++++ b/include/linux/dma-mapping.h +@@ -51,7 +51,7 @@ struct dma_map_ops { + u64 (*get_required_mask)(struct device *dev); + #endif + int is_phys; +-}; ++} __do_const; + + #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) + +diff --git a/include/linux/efi.h b/include/linux/efi.h +index ec45ccd..9923c32 100644 +--- a/include/linux/efi.h ++++ b/include/linux/efi.h +@@ -635,7 +635,7 @@ struct efivar_operations { + efi_get_variable_t *get_variable; + efi_get_next_variable_t *get_next_variable; + efi_set_variable_t *set_variable; +-}; ++} __no_const; + + struct efivars { + /* +diff --git a/include/linux/elf.h b/include/linux/elf.h +index 999b4f5..57753b4 100644 +--- a/include/linux/elf.h ++++ b/include/linux/elf.h +@@ -40,6 +40,17 @@ typedef __s64 Elf64_Sxword; + #define PT_GNU_EH_FRAME 0x6474e550 + + #define PT_GNU_STACK (PT_LOOS + 0x474e551) ++#define PT_GNU_RELRO (PT_LOOS + 0x474e552) ++ ++#define PT_PAX_FLAGS (PT_LOOS + 0x5041580) ++ ++/* Constants for the e_flags field */ ++#define EF_PAX_PAGEEXEC 1 /* Paging based non-executable pages */ ++#define EF_PAX_EMUTRAMP 2 /* Emulate trampolines */ ++#define EF_PAX_MPROTECT 4 /* Restrict mprotect() */ ++#define EF_PAX_RANDMMAP 8 /* Randomize mmap() base */ ++/*#define EF_PAX_RANDEXEC 16*/ /* Randomize ET_EXEC base */ ++#define EF_PAX_SEGMEXEC 32 /* Segmentation based non-executable pages */ + + /* + * Extended Numbering +@@ -97,6 +108,8 @@ typedef __s64 Elf64_Sxword; + #define DT_DEBUG 21 + #define DT_TEXTREL 22 + #define DT_JMPREL 23 ++#define DT_FLAGS 30 ++ #define DF_TEXTREL 0x00000004 + #define DT_ENCODING 32 + #define OLD_DT_LOOS 0x60000000 + #define DT_LOOS 0x6000000d +@@ -243,6 +256,19 @@ typedef struct elf64_hdr { + #define PF_W 0x2 + #define PF_X 0x1 + ++#define PF_PAGEEXEC (1U << 4) /* Enable PAGEEXEC */ ++#define PF_NOPAGEEXEC (1U << 5) /* Disable PAGEEXEC */ ++#define PF_SEGMEXEC (1U << 6) /* Enable SEGMEXEC */ ++#define PF_NOSEGMEXEC (1U << 7) /* Disable SEGMEXEC */ ++#define PF_MPROTECT (1U << 8) /* Enable MPROTECT */ ++#define PF_NOMPROTECT (1U << 9) /* Disable MPROTECT */ ++/*#define PF_RANDEXEC (1U << 10)*/ /* Enable RANDEXEC */ ++/*#define PF_NORANDEXEC (1U << 11)*/ /* Disable RANDEXEC */ ++#define PF_EMUTRAMP (1U << 12) /* Enable EMUTRAMP */ ++#define PF_NOEMUTRAMP (1U << 13) /* Disable EMUTRAMP */ ++#define PF_RANDMMAP (1U << 14) /* Enable RANDMMAP */ ++#define PF_NORANDMMAP (1U << 15) /* Disable RANDMMAP */ ++ + typedef struct elf32_phdr{ + Elf32_Word p_type; + Elf32_Off p_offset; +@@ -335,6 +361,8 @@ typedef struct elf64_shdr { + #define EI_OSABI 7 + #define EI_PAD 8 + ++#define EI_PAX 14 ++ + #define ELFMAG0 0x7f /* EI_MAG */ + #define ELFMAG1 'E' + #define ELFMAG2 'L' +@@ -421,6 +449,7 @@ extern Elf32_Dyn _DYNAMIC []; + #define elf_note elf32_note + #define elf_addr_t Elf32_Off + #define Elf_Half Elf32_Half ++#define elf_dyn Elf32_Dyn + + #else + +@@ -431,6 +460,7 @@ extern Elf64_Dyn _DYNAMIC []; + #define elf_note elf64_note + #define elf_addr_t Elf64_Off + #define Elf_Half Elf64_Half ++#define elf_dyn Elf64_Dyn + + #endif + +diff --git a/include/linux/filter.h b/include/linux/filter.h +index 8eeb205..d59bfa2 100644 +--- a/include/linux/filter.h ++++ b/include/linux/filter.h +@@ -134,6 +134,7 @@ struct sock_fprog { /* Required for SO_ATTACH_FILTER. */ + + struct sk_buff; + struct sock; ++struct bpf_jit_work; + + struct sk_filter + { +@@ -141,6 +142,9 @@ struct sk_filter + unsigned int len; /* Number of filter blocks */ + unsigned int (*bpf_func)(const struct sk_buff *skb, + const struct sock_filter *filter); ++#ifdef CONFIG_BPF_JIT ++ struct bpf_jit_work *work; ++#endif + struct rcu_head rcu; + struct sock_filter insns[0]; + }; +diff --git a/include/linux/firewire.h b/include/linux/firewire.h +index cdc9b71..ce69fb5 100644 +--- a/include/linux/firewire.h ++++ b/include/linux/firewire.h +@@ -413,7 +413,7 @@ struct fw_iso_context { + union { + fw_iso_callback_t sc; + fw_iso_mc_callback_t mc; +- } callback; ++ } __no_const callback; + void *callback_data; + }; + +diff --git a/include/linux/fs.h b/include/linux/fs.h +index 25c40b9..1bfd4f4 100644 +--- a/include/linux/fs.h ++++ b/include/linux/fs.h +@@ -1634,7 +1634,8 @@ struct file_operations { + int (*setlease)(struct file *, long, struct file_lock **); + long (*fallocate)(struct file *file, int mode, loff_t offset, + loff_t len); +-}; ++} __do_const; ++typedef struct file_operations __no_const file_operations_no_const; + + struct inode_operations { + struct dentry * (*lookup) (struct inode *,struct dentry *, struct nameidata *); +diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h +index 003dc0f..3c4ea97 100644 +--- a/include/linux/fs_struct.h ++++ b/include/linux/fs_struct.h +@@ -6,7 +6,7 @@ + #include <linux/seqlock.h> + + struct fs_struct { +- int users; ++ atomic_t users; + spinlock_t lock; + seqcount_t seq; + int umask; +diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h +index ce31408..b1ad003 100644 +--- a/include/linux/fscache-cache.h ++++ b/include/linux/fscache-cache.h +@@ -102,7 +102,7 @@ struct fscache_operation { + fscache_operation_release_t release; + }; + +-extern atomic_t fscache_op_debug_id; ++extern atomic_unchecked_t fscache_op_debug_id; + extern void fscache_op_work_func(struct work_struct *work); + + extern void fscache_enqueue_operation(struct fscache_operation *); +@@ -122,7 +122,7 @@ static inline void fscache_operation_init(struct fscache_operation *op, + { + INIT_WORK(&op->work, fscache_op_work_func); + atomic_set(&op->usage, 1); +- op->debug_id = atomic_inc_return(&fscache_op_debug_id); ++ op->debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id); + op->processor = processor; + op->release = release; + INIT_LIST_HEAD(&op->pend_link); +diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h +index a6dfe69..569586df 100644 +--- a/include/linux/fsnotify.h ++++ b/include/linux/fsnotify.h +@@ -315,7 +315,7 @@ static inline void fsnotify_change(struct dentry *dentry, unsigned int ia_valid) + */ + static inline const unsigned char *fsnotify_oldname_init(const unsigned char *name) + { +- return kstrdup(name, GFP_KERNEL); ++ return (const unsigned char *)kstrdup((const char *)name, GFP_KERNEL); + } + + /* +diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h +index 91d0e0a3..035666b 100644 +--- a/include/linux/fsnotify_backend.h ++++ b/include/linux/fsnotify_backend.h +@@ -105,6 +105,7 @@ struct fsnotify_ops { + void (*freeing_mark)(struct fsnotify_mark *mark, struct fsnotify_group *group); + void (*free_event_priv)(struct fsnotify_event_private_data *priv); + }; ++typedef struct fsnotify_ops __no_const fsnotify_ops_no_const; + + /* + * A group is a "thing" that wants to receive notification about filesystem +diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h +index 176a939..1462211 100644 +--- a/include/linux/ftrace_event.h ++++ b/include/linux/ftrace_event.h +@@ -97,7 +97,7 @@ struct trace_event_functions { + trace_print_func raw; + trace_print_func hex; + trace_print_func binary; +-}; ++} __no_const; + + struct trace_event { + struct hlist_node node; +@@ -263,7 +263,7 @@ extern int trace_define_field(struct ftrace_event_call *call, const char *type, + extern int trace_add_event_call(struct ftrace_event_call *call); + extern void trace_remove_event_call(struct ftrace_event_call *call); + +-#define is_signed_type(type) (((type)(-1)) < 0) ++#define is_signed_type(type) (((type)(-1)) < (type)1) + + int trace_set_clr_event(const char *system, const char *event, int set); + +diff --git a/include/linux/genhd.h b/include/linux/genhd.h +index 017a7fb..33a8507 100644 +--- a/include/linux/genhd.h ++++ b/include/linux/genhd.h +@@ -185,7 +185,7 @@ struct gendisk { + struct kobject *slave_dir; + + struct timer_rand_state *random; +- atomic_t sync_io; /* RAID */ ++ atomic_unchecked_t sync_io; /* RAID */ + struct disk_events *ev; + #ifdef CONFIG_BLK_DEV_INTEGRITY + struct blk_integrity *integrity; +diff --git a/include/linux/gfp.h b/include/linux/gfp.h +index 581e74b..8c34a24 100644 +--- a/include/linux/gfp.h ++++ b/include/linux/gfp.h +@@ -38,6 +38,12 @@ struct vm_area_struct; + #define ___GFP_OTHER_NODE 0x800000u + #define ___GFP_WRITE 0x1000000u + ++#ifdef CONFIG_PAX_USERCOPY_SLABS ++#define ___GFP_USERCOPY 0x2000000u ++#else ++#define ___GFP_USERCOPY 0 ++#endif ++ + /* + * GFP bitmasks.. + * +@@ -87,6 +93,7 @@ struct vm_area_struct; + #define __GFP_NO_KSWAPD ((__force gfp_t)___GFP_NO_KSWAPD) + #define __GFP_OTHER_NODE ((__force gfp_t)___GFP_OTHER_NODE) /* On behalf of other node */ + #define __GFP_WRITE ((__force gfp_t)___GFP_WRITE) /* Allocator intends to dirty page */ ++#define __GFP_USERCOPY ((__force gfp_t)___GFP_USERCOPY)/* Allocator intends to copy page to/from userland */ + + /* + * This may seem redundant, but it's a way of annotating false positives vs. +@@ -94,7 +101,7 @@ struct vm_area_struct; + */ + #define __GFP_NOTRACK_FALSE_POSITIVE (__GFP_NOTRACK) + +-#define __GFP_BITS_SHIFT 25 /* Room for N __GFP_FOO bits */ ++#define __GFP_BITS_SHIFT 26 /* Room for N __GFP_FOO bits */ + #define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1)) + + /* This equals 0, but use constants in case they ever change */ +@@ -148,6 +155,8 @@ struct vm_area_struct; + /* 4GB DMA on some platforms */ + #define GFP_DMA32 __GFP_DMA32 + ++#define GFP_USERCOPY __GFP_USERCOPY ++ + /* Convert GFP flags to their corresponding migrate type */ + static inline int allocflags_to_migratetype(gfp_t gfp_flags) + { +diff --git a/include/linux/gracl.h b/include/linux/gracl.h +new file mode 100644 +index 0000000..c938b1f +--- /dev/null ++++ b/include/linux/gracl.h +@@ -0,0 +1,319 @@ ++#ifndef GR_ACL_H ++#define GR_ACL_H ++ ++#include <linux/grdefs.h> ++#include <linux/resource.h> ++#include <linux/capability.h> ++#include <linux/dcache.h> ++#include <asm/resource.h> ++ ++/* Major status information */ ++ ++#define GR_VERSION "grsecurity 2.9.1" ++#define GRSECURITY_VERSION 0x2901 ++ ++enum { ++ GR_SHUTDOWN = 0, ++ GR_ENABLE = 1, ++ GR_SPROLE = 2, ++ GR_RELOAD = 3, ++ GR_SEGVMOD = 4, ++ GR_STATUS = 5, ++ GR_UNSPROLE = 6, ++ GR_PASSSET = 7, ++ GR_SPROLEPAM = 8, ++}; ++ ++/* Password setup definitions ++ * kernel/grhash.c */ ++enum { ++ GR_PW_LEN = 128, ++ GR_SALT_LEN = 16, ++ GR_SHA_LEN = 32, ++}; ++ ++enum { ++ GR_SPROLE_LEN = 64, ++}; ++ ++enum { ++ GR_NO_GLOB = 0, ++ GR_REG_GLOB, ++ GR_CREATE_GLOB ++}; ++ ++#define GR_NLIMITS 32 ++ ++/* Begin Data Structures */ ++ ++struct sprole_pw { ++ unsigned char *rolename; ++ unsigned char salt[GR_SALT_LEN]; ++ unsigned char sum[GR_SHA_LEN]; /* 256-bit SHA hash of the password */ ++}; ++ ++struct name_entry { ++ __u32 key; ++ ino_t inode; ++ dev_t device; ++ char *name; ++ __u16 len; ++ __u8 deleted; ++ struct name_entry *prev; ++ struct name_entry *next; ++}; ++ ++struct inodev_entry { ++ struct name_entry *nentry; ++ struct inodev_entry *prev; ++ struct inodev_entry *next; ++}; ++ ++struct acl_role_db { ++ struct acl_role_label **r_hash; ++ __u32 r_size; ++}; ++ ++struct inodev_db { ++ struct inodev_entry **i_hash; ++ __u32 i_size; ++}; ++ ++struct name_db { ++ struct name_entry **n_hash; ++ __u32 n_size; ++}; ++ ++struct crash_uid { ++ uid_t uid; ++ unsigned long expires; ++}; ++ ++struct gr_hash_struct { ++ void **table; ++ void **nametable; ++ void *first; ++ __u32 table_size; ++ __u32 used_size; ++ int type; ++}; ++ ++/* Userspace Grsecurity ACL data structures */ ++ ++struct acl_subject_label { ++ char *filename; ++ ino_t inode; ++ dev_t device; ++ __u32 mode; ++ kernel_cap_t cap_mask; ++ kernel_cap_t cap_lower; ++ kernel_cap_t cap_invert_audit; ++ ++ struct rlimit res[GR_NLIMITS]; ++ __u32 resmask; ++ ++ __u8 user_trans_type; ++ __u8 group_trans_type; ++ uid_t *user_transitions; ++ gid_t *group_transitions; ++ __u16 user_trans_num; ++ __u16 group_trans_num; ++ ++ __u32 sock_families[2]; ++ __u32 ip_proto[8]; ++ __u32 ip_type; ++ struct acl_ip_label **ips; ++ __u32 ip_num; ++ __u32 inaddr_any_override; ++ ++ __u32 crashes; ++ unsigned long expires; ++ ++ struct acl_subject_label *parent_subject; ++ struct gr_hash_struct *hash; ++ struct acl_subject_label *prev; ++ struct acl_subject_label *next; ++ ++ struct acl_object_label **obj_hash; ++ __u32 obj_hash_size; ++ __u16 pax_flags; ++}; ++ ++struct role_allowed_ip { ++ __u32 addr; ++ __u32 netmask; ++ ++ struct role_allowed_ip *prev; ++ struct role_allowed_ip *next; ++}; ++ ++struct role_transition { ++ char *rolename; ++ ++ struct role_transition *prev; ++ struct role_transition *next; ++}; ++ ++struct acl_role_label { ++ char *rolename; ++ uid_t uidgid; ++ __u16 roletype; ++ ++ __u16 auth_attempts; ++ unsigned long expires; ++ ++ struct acl_subject_label *root_label; ++ struct gr_hash_struct *hash; ++ ++ struct acl_role_label *prev; ++ struct acl_role_label *next; ++ ++ struct role_transition *transitions; ++ struct role_allowed_ip *allowed_ips; ++ uid_t *domain_children; ++ __u16 domain_child_num; ++ ++ umode_t umask; ++ ++ struct acl_subject_label **subj_hash; ++ __u32 subj_hash_size; ++}; ++ ++struct user_acl_role_db { ++ struct acl_role_label **r_table; ++ __u32 num_pointers; /* Number of allocations to track */ ++ __u32 num_roles; /* Number of roles */ ++ __u32 num_domain_children; /* Number of domain children */ ++ __u32 num_subjects; /* Number of subjects */ ++ __u32 num_objects; /* Number of objects */ ++}; ++ ++struct acl_object_label { ++ char *filename; ++ ino_t inode; ++ dev_t device; ++ __u32 mode; ++ ++ struct acl_subject_label *nested; ++ struct acl_object_label *globbed; ++ ++ /* next two structures not used */ ++ ++ struct acl_object_label *prev; ++ struct acl_object_label *next; ++}; ++ ++struct acl_ip_label { ++ char *iface; ++ __u32 addr; ++ __u32 netmask; ++ __u16 low, high; ++ __u8 mode; ++ __u32 type; ++ __u32 proto[8]; ++ ++ /* next two structures not used */ ++ ++ struct acl_ip_label *prev; ++ struct acl_ip_label *next; ++}; ++ ++struct gr_arg { ++ struct user_acl_role_db role_db; ++ unsigned char pw[GR_PW_LEN]; ++ unsigned char salt[GR_SALT_LEN]; ++ unsigned char sum[GR_SHA_LEN]; ++ unsigned char sp_role[GR_SPROLE_LEN]; ++ struct sprole_pw *sprole_pws; ++ dev_t segv_device; ++ ino_t segv_inode; ++ uid_t segv_uid; ++ __u16 num_sprole_pws; ++ __u16 mode; ++}; ++ ++struct gr_arg_wrapper { ++ struct gr_arg *arg; ++ __u32 version; ++ __u32 size; ++}; ++ ++struct subject_map { ++ struct acl_subject_label *user; ++ struct acl_subject_label *kernel; ++ struct subject_map *prev; ++ struct subject_map *next; ++}; ++ ++struct acl_subj_map_db { ++ struct subject_map **s_hash; ++ __u32 s_size; ++}; ++ ++/* End Data Structures Section */ ++ ++/* Hash functions generated by empirical testing by Brad Spengler ++ Makes good use of the low bits of the inode. Generally 0-1 times ++ in loop for successful match. 0-3 for unsuccessful match. ++ Shift/add algorithm with modulus of table size and an XOR*/ ++ ++static __inline__ unsigned int ++rhash(const uid_t uid, const __u16 type, const unsigned int sz) ++{ ++ return ((((uid + type) << (16 + type)) ^ uid) % sz); ++} ++ ++ static __inline__ unsigned int ++shash(const struct acl_subject_label *userp, const unsigned int sz) ++{ ++ return ((const unsigned long)userp % sz); ++} ++ ++static __inline__ unsigned int ++fhash(const ino_t ino, const dev_t dev, const unsigned int sz) ++{ ++ return (((ino + dev) ^ ((ino << 13) + (ino << 23) + (dev << 9))) % sz); ++} ++ ++static __inline__ unsigned int ++nhash(const char *name, const __u16 len, const unsigned int sz) ++{ ++ return full_name_hash((const unsigned char *)name, len) % sz; ++} ++ ++#define FOR_EACH_ROLE_START(role) \ ++ role = role_list; \ ++ while (role) { ++ ++#define FOR_EACH_ROLE_END(role) \ ++ role = role->prev; \ ++ } ++ ++#define FOR_EACH_SUBJECT_START(role,subj,iter) \ ++ subj = NULL; \ ++ iter = 0; \ ++ while (iter < role->subj_hash_size) { \ ++ if (subj == NULL) \ ++ subj = role->subj_hash[iter]; \ ++ if (subj == NULL) { \ ++ iter++; \ ++ continue; \ ++ } ++ ++#define FOR_EACH_SUBJECT_END(subj,iter) \ ++ subj = subj->next; \ ++ if (subj == NULL) \ ++ iter++; \ ++ } ++ ++ ++#define FOR_EACH_NESTED_SUBJECT_START(role,subj) \ ++ subj = role->hash->first; \ ++ while (subj != NULL) { ++ ++#define FOR_EACH_NESTED_SUBJECT_END(subj) \ ++ subj = subj->next; \ ++ } ++ ++#endif ++ +diff --git a/include/linux/gralloc.h b/include/linux/gralloc.h +new file mode 100644 +index 0000000..323ecf2 +--- /dev/null ++++ b/include/linux/gralloc.h +@@ -0,0 +1,9 @@ ++#ifndef __GRALLOC_H ++#define __GRALLOC_H ++ ++void acl_free_all(void); ++int acl_alloc_stack_init(unsigned long size); ++void *acl_alloc(unsigned long len); ++void *acl_alloc_num(unsigned long num, unsigned long len); ++ ++#endif +diff --git a/include/linux/grdefs.h b/include/linux/grdefs.h +new file mode 100644 +index 0000000..b30e9bc +--- /dev/null ++++ b/include/linux/grdefs.h +@@ -0,0 +1,140 @@ ++#ifndef GRDEFS_H ++#define GRDEFS_H ++ ++/* Begin grsecurity status declarations */ ++ ++enum { ++ GR_READY = 0x01, ++ GR_STATUS_INIT = 0x00 // disabled state ++}; ++ ++/* Begin ACL declarations */ ++ ++/* Role flags */ ++ ++enum { ++ GR_ROLE_USER = 0x0001, ++ GR_ROLE_GROUP = 0x0002, ++ GR_ROLE_DEFAULT = 0x0004, ++ GR_ROLE_SPECIAL = 0x0008, ++ GR_ROLE_AUTH = 0x0010, ++ GR_ROLE_NOPW = 0x0020, ++ GR_ROLE_GOD = 0x0040, ++ GR_ROLE_LEARN = 0x0080, ++ GR_ROLE_TPE = 0x0100, ++ GR_ROLE_DOMAIN = 0x0200, ++ GR_ROLE_PAM = 0x0400, ++ GR_ROLE_PERSIST = 0x0800 ++}; ++ ++/* ACL Subject and Object mode flags */ ++enum { ++ GR_DELETED = 0x80000000 ++}; ++ ++/* ACL Object-only mode flags */ ++enum { ++ GR_READ = 0x00000001, ++ GR_APPEND = 0x00000002, ++ GR_WRITE = 0x00000004, ++ GR_EXEC = 0x00000008, ++ GR_FIND = 0x00000010, ++ GR_INHERIT = 0x00000020, ++ GR_SETID = 0x00000040, ++ GR_CREATE = 0x00000080, ++ GR_DELETE = 0x00000100, ++ GR_LINK = 0x00000200, ++ GR_AUDIT_READ = 0x00000400, ++ GR_AUDIT_APPEND = 0x00000800, ++ GR_AUDIT_WRITE = 0x00001000, ++ GR_AUDIT_EXEC = 0x00002000, ++ GR_AUDIT_FIND = 0x00004000, ++ GR_AUDIT_INHERIT= 0x00008000, ++ GR_AUDIT_SETID = 0x00010000, ++ GR_AUDIT_CREATE = 0x00020000, ++ GR_AUDIT_DELETE = 0x00040000, ++ GR_AUDIT_LINK = 0x00080000, ++ GR_PTRACERD = 0x00100000, ++ GR_NOPTRACE = 0x00200000, ++ GR_SUPPRESS = 0x00400000, ++ GR_NOLEARN = 0x00800000, ++ GR_INIT_TRANSFER= 0x01000000 ++}; ++ ++#define GR_AUDITS (GR_AUDIT_READ | GR_AUDIT_WRITE | GR_AUDIT_APPEND | GR_AUDIT_EXEC | \ ++ GR_AUDIT_FIND | GR_AUDIT_INHERIT | GR_AUDIT_SETID | \ ++ GR_AUDIT_CREATE | GR_AUDIT_DELETE | GR_AUDIT_LINK) ++ ++/* ACL subject-only mode flags */ ++enum { ++ GR_KILL = 0x00000001, ++ GR_VIEW = 0x00000002, ++ GR_PROTECTED = 0x00000004, ++ GR_LEARN = 0x00000008, ++ GR_OVERRIDE = 0x00000010, ++ /* just a placeholder, this mode is only used in userspace */ ++ GR_DUMMY = 0x00000020, ++ GR_PROTSHM = 0x00000040, ++ GR_KILLPROC = 0x00000080, ++ GR_KILLIPPROC = 0x00000100, ++ /* just a placeholder, this mode is only used in userspace */ ++ GR_NOTROJAN = 0x00000200, ++ GR_PROTPROCFD = 0x00000400, ++ GR_PROCACCT = 0x00000800, ++ GR_RELAXPTRACE = 0x00001000, ++ GR_NESTED = 0x00002000, ++ GR_INHERITLEARN = 0x00004000, ++ GR_PROCFIND = 0x00008000, ++ GR_POVERRIDE = 0x00010000, ++ GR_KERNELAUTH = 0x00020000, ++ GR_ATSECURE = 0x00040000, ++ GR_SHMEXEC = 0x00080000 ++}; ++ ++enum { ++ GR_PAX_ENABLE_SEGMEXEC = 0x0001, ++ GR_PAX_ENABLE_PAGEEXEC = 0x0002, ++ GR_PAX_ENABLE_MPROTECT = 0x0004, ++ GR_PAX_ENABLE_RANDMMAP = 0x0008, ++ GR_PAX_ENABLE_EMUTRAMP = 0x0010, ++ GR_PAX_DISABLE_SEGMEXEC = 0x0100, ++ GR_PAX_DISABLE_PAGEEXEC = 0x0200, ++ GR_PAX_DISABLE_MPROTECT = 0x0400, ++ GR_PAX_DISABLE_RANDMMAP = 0x0800, ++ GR_PAX_DISABLE_EMUTRAMP = 0x1000, ++}; ++ ++enum { ++ GR_ID_USER = 0x01, ++ GR_ID_GROUP = 0x02, ++}; ++ ++enum { ++ GR_ID_ALLOW = 0x01, ++ GR_ID_DENY = 0x02, ++}; ++ ++#define GR_CRASH_RES 31 ++#define GR_UIDTABLE_MAX 500 ++ ++/* begin resource learning section */ ++enum { ++ GR_RLIM_CPU_BUMP = 60, ++ GR_RLIM_FSIZE_BUMP = 50000, ++ GR_RLIM_DATA_BUMP = 10000, ++ GR_RLIM_STACK_BUMP = 1000, ++ GR_RLIM_CORE_BUMP = 10000, ++ GR_RLIM_RSS_BUMP = 500000, ++ GR_RLIM_NPROC_BUMP = 1, ++ GR_RLIM_NOFILE_BUMP = 5, ++ GR_RLIM_MEMLOCK_BUMP = 50000, ++ GR_RLIM_AS_BUMP = 500000, ++ GR_RLIM_LOCKS_BUMP = 2, ++ GR_RLIM_SIGPENDING_BUMP = 5, ++ GR_RLIM_MSGQUEUE_BUMP = 10000, ++ GR_RLIM_NICE_BUMP = 1, ++ GR_RLIM_RTPRIO_BUMP = 1, ++ GR_RLIM_RTTIME_BUMP = 1000000 ++}; ++ ++#endif +diff --git a/include/linux/grinternal.h b/include/linux/grinternal.h +new file mode 100644 +index 0000000..c9292f7 +--- /dev/null ++++ b/include/linux/grinternal.h +@@ -0,0 +1,223 @@ ++#ifndef __GRINTERNAL_H ++#define __GRINTERNAL_H ++ ++#ifdef CONFIG_GRKERNSEC ++ ++#include <linux/fs.h> ++#include <linux/mnt_namespace.h> ++#include <linux/nsproxy.h> ++#include <linux/gracl.h> ++#include <linux/grdefs.h> ++#include <linux/grmsg.h> ++ ++void gr_add_learn_entry(const char *fmt, ...) ++ __attribute__ ((format (printf, 1, 2))); ++__u32 gr_search_file(const struct dentry *dentry, const __u32 mode, ++ const struct vfsmount *mnt); ++__u32 gr_check_create(const struct dentry *new_dentry, ++ const struct dentry *parent, ++ const struct vfsmount *mnt, const __u32 mode); ++int gr_check_protected_task(const struct task_struct *task); ++__u32 to_gr_audit(const __u32 reqmode); ++int gr_set_acls(const int type); ++int gr_apply_subject_to_task(struct task_struct *task); ++int gr_acl_is_enabled(void); ++char gr_roletype_to_char(void); ++ ++void gr_handle_alertkill(struct task_struct *task); ++char *gr_to_filename(const struct dentry *dentry, ++ const struct vfsmount *mnt); ++char *gr_to_filename1(const struct dentry *dentry, ++ const struct vfsmount *mnt); ++char *gr_to_filename2(const struct dentry *dentry, ++ const struct vfsmount *mnt); ++char *gr_to_filename3(const struct dentry *dentry, ++ const struct vfsmount *mnt); ++ ++extern int grsec_enable_ptrace_readexec; ++extern int grsec_enable_harden_ptrace; ++extern int grsec_enable_link; ++extern int grsec_enable_fifo; ++extern int grsec_enable_execve; ++extern int grsec_enable_shm; ++extern int grsec_enable_execlog; ++extern int grsec_enable_signal; ++extern int grsec_enable_audit_ptrace; ++extern int grsec_enable_forkfail; ++extern int grsec_enable_time; ++extern int grsec_enable_rofs; ++extern int grsec_enable_chroot_shmat; ++extern int grsec_enable_chroot_mount; ++extern int grsec_enable_chroot_double; ++extern int grsec_enable_chroot_pivot; ++extern int grsec_enable_chroot_chdir; ++extern int grsec_enable_chroot_chmod; ++extern int grsec_enable_chroot_mknod; ++extern int grsec_enable_chroot_fchdir; ++extern int grsec_enable_chroot_nice; ++extern int grsec_enable_chroot_execlog; ++extern int grsec_enable_chroot_caps; ++extern int grsec_enable_chroot_sysctl; ++extern int grsec_enable_chroot_unix; ++extern int grsec_enable_symlinkown; ++extern int grsec_symlinkown_gid; ++extern int grsec_enable_tpe; ++extern int grsec_tpe_gid; ++extern int grsec_enable_tpe_all; ++extern int grsec_enable_tpe_invert; ++extern int grsec_enable_socket_all; ++extern int grsec_socket_all_gid; ++extern int grsec_enable_socket_client; ++extern int grsec_socket_client_gid; ++extern int grsec_enable_socket_server; ++extern int grsec_socket_server_gid; ++extern int grsec_audit_gid; ++extern int grsec_enable_group; ++extern int grsec_enable_audit_textrel; ++extern int grsec_enable_log_rwxmaps; ++extern int grsec_enable_mount; ++extern int grsec_enable_chdir; ++extern int grsec_resource_logging; ++extern int grsec_enable_blackhole; ++extern int grsec_lastack_retries; ++extern int grsec_enable_brute; ++extern int grsec_lock; ++ ++extern spinlock_t grsec_alert_lock; ++extern unsigned long grsec_alert_wtime; ++extern unsigned long grsec_alert_fyet; ++ ++extern spinlock_t grsec_audit_lock; ++ ++extern rwlock_t grsec_exec_file_lock; ++ ++#define gr_task_fullpath(tsk) ((tsk)->exec_file ? \ ++ gr_to_filename2((tsk)->exec_file->f_path.dentry, \ ++ (tsk)->exec_file->f_vfsmnt) : "/") ++ ++#define gr_parent_task_fullpath(tsk) ((tsk)->real_parent->exec_file ? \ ++ gr_to_filename3((tsk)->real_parent->exec_file->f_path.dentry, \ ++ (tsk)->real_parent->exec_file->f_vfsmnt) : "/") ++ ++#define gr_task_fullpath0(tsk) ((tsk)->exec_file ? \ ++ gr_to_filename((tsk)->exec_file->f_path.dentry, \ ++ (tsk)->exec_file->f_vfsmnt) : "/") ++ ++#define gr_parent_task_fullpath0(tsk) ((tsk)->real_parent->exec_file ? \ ++ gr_to_filename1((tsk)->real_parent->exec_file->f_path.dentry, \ ++ (tsk)->real_parent->exec_file->f_vfsmnt) : "/") ++ ++#define proc_is_chrooted(tsk_a) ((tsk_a)->gr_is_chrooted) ++ ++#define have_same_root(tsk_a,tsk_b) ((tsk_a)->gr_chroot_dentry == (tsk_b)->gr_chroot_dentry) ++ ++#define DEFAULTSECARGS(task, cred, pcred) gr_task_fullpath(task), (task)->comm, \ ++ (task)->pid, (cred)->uid, \ ++ (cred)->euid, (cred)->gid, (cred)->egid, \ ++ gr_parent_task_fullpath(task), \ ++ (task)->real_parent->comm, (task)->real_parent->pid, \ ++ (pcred)->uid, (pcred)->euid, \ ++ (pcred)->gid, (pcred)->egid ++ ++#define GR_CHROOT_CAPS {{ \ ++ CAP_TO_MASK(CAP_LINUX_IMMUTABLE) | CAP_TO_MASK(CAP_NET_ADMIN) | \ ++ CAP_TO_MASK(CAP_SYS_MODULE) | CAP_TO_MASK(CAP_SYS_RAWIO) | \ ++ CAP_TO_MASK(CAP_SYS_PACCT) | CAP_TO_MASK(CAP_SYS_ADMIN) | \ ++ CAP_TO_MASK(CAP_SYS_BOOT) | CAP_TO_MASK(CAP_SYS_TIME) | \ ++ CAP_TO_MASK(CAP_NET_RAW) | CAP_TO_MASK(CAP_SYS_TTY_CONFIG) | \ ++ CAP_TO_MASK(CAP_IPC_OWNER) | CAP_TO_MASK(CAP_SETFCAP), \ ++ CAP_TO_MASK(CAP_SYSLOG) | CAP_TO_MASK(CAP_MAC_ADMIN) }} ++ ++#define security_learn(normal_msg,args...) \ ++({ \ ++ read_lock(&grsec_exec_file_lock); \ ++ gr_add_learn_entry(normal_msg "\n", ## args); \ ++ read_unlock(&grsec_exec_file_lock); \ ++}) ++ ++enum { ++ GR_DO_AUDIT, ++ GR_DONT_AUDIT, ++ /* used for non-audit messages that we shouldn't kill the task on */ ++ GR_DONT_AUDIT_GOOD ++}; ++ ++enum { ++ GR_TTYSNIFF, ++ GR_RBAC, ++ GR_RBAC_STR, ++ GR_STR_RBAC, ++ GR_RBAC_MODE2, ++ GR_RBAC_MODE3, ++ GR_FILENAME, ++ GR_SYSCTL_HIDDEN, ++ GR_NOARGS, ++ GR_ONE_INT, ++ GR_ONE_INT_TWO_STR, ++ GR_ONE_STR, ++ GR_STR_INT, ++ GR_TWO_STR_INT, ++ GR_TWO_INT, ++ GR_TWO_U64, ++ GR_THREE_INT, ++ GR_FIVE_INT_TWO_STR, ++ GR_TWO_STR, ++ GR_THREE_STR, ++ GR_FOUR_STR, ++ GR_STR_FILENAME, ++ GR_FILENAME_STR, ++ GR_FILENAME_TWO_INT, ++ GR_FILENAME_TWO_INT_STR, ++ GR_TEXTREL, ++ GR_PTRACE, ++ GR_RESOURCE, ++ GR_CAP, ++ GR_SIG, ++ GR_SIG2, ++ GR_CRASH1, ++ GR_CRASH2, ++ GR_PSACCT, ++ GR_RWXMAP ++}; ++ ++#define gr_log_hidden_sysctl(audit, msg, str) gr_log_varargs(audit, msg, GR_SYSCTL_HIDDEN, str) ++#define gr_log_ttysniff(audit, msg, task) gr_log_varargs(audit, msg, GR_TTYSNIFF, task) ++#define gr_log_fs_rbac_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_RBAC, dentry, mnt) ++#define gr_log_fs_rbac_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_RBAC_STR, dentry, mnt, str) ++#define gr_log_fs_str_rbac(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_RBAC, str, dentry, mnt) ++#define gr_log_fs_rbac_mode2(audit, msg, dentry, mnt, str1, str2) gr_log_varargs(audit, msg, GR_RBAC_MODE2, dentry, mnt, str1, str2) ++#define gr_log_fs_rbac_mode3(audit, msg, dentry, mnt, str1, str2, str3) gr_log_varargs(audit, msg, GR_RBAC_MODE3, dentry, mnt, str1, str2, str3) ++#define gr_log_fs_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_FILENAME, dentry, mnt) ++#define gr_log_noargs(audit, msg) gr_log_varargs(audit, msg, GR_NOARGS) ++#define gr_log_int(audit, msg, num) gr_log_varargs(audit, msg, GR_ONE_INT, num) ++#define gr_log_int_str2(audit, msg, num, str1, str2) gr_log_varargs(audit, msg, GR_ONE_INT_TWO_STR, num, str1, str2) ++#define gr_log_str(audit, msg, str) gr_log_varargs(audit, msg, GR_ONE_STR, str) ++#define gr_log_str_int(audit, msg, str, num) gr_log_varargs(audit, msg, GR_STR_INT, str, num) ++#define gr_log_int_int(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_INT, num1, num2) ++#define gr_log_two_u64(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_U64, num1, num2) ++#define gr_log_int3(audit, msg, num1, num2, num3) gr_log_varargs(audit, msg, GR_THREE_INT, num1, num2, num3) ++#define gr_log_int5_str2(audit, msg, num1, num2, str1, str2) gr_log_varargs(audit, msg, GR_FIVE_INT_TWO_STR, num1, num2, str1, str2) ++#define gr_log_str_str(audit, msg, str1, str2) gr_log_varargs(audit, msg, GR_TWO_STR, str1, str2) ++#define gr_log_str2_int(audit, msg, str1, str2, num) gr_log_varargs(audit, msg, GR_TWO_STR_INT, str1, str2, num) ++#define gr_log_str3(audit, msg, str1, str2, str3) gr_log_varargs(audit, msg, GR_THREE_STR, str1, str2, str3) ++#define gr_log_str4(audit, msg, str1, str2, str3, str4) gr_log_varargs(audit, msg, GR_FOUR_STR, str1, str2, str3, str4) ++#define gr_log_str_fs(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_FILENAME, str, dentry, mnt) ++#define gr_log_fs_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_FILENAME_STR, dentry, mnt, str) ++#define gr_log_fs_int2(audit, msg, dentry, mnt, num1, num2) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT, dentry, mnt, num1, num2) ++#define gr_log_fs_int2_str(audit, msg, dentry, mnt, num1, num2, str) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT_STR, dentry, mnt, num1, num2, str) ++#define gr_log_textrel_ulong_ulong(audit, msg, file, ulong1, ulong2) gr_log_varargs(audit, msg, GR_TEXTREL, file, ulong1, ulong2) ++#define gr_log_ptrace(audit, msg, task) gr_log_varargs(audit, msg, GR_PTRACE, task) ++#define gr_log_res_ulong2_str(audit, msg, task, ulong1, str, ulong2) gr_log_varargs(audit, msg, GR_RESOURCE, task, ulong1, str, ulong2) ++#define gr_log_cap(audit, msg, task, str) gr_log_varargs(audit, msg, GR_CAP, task, str) ++#define gr_log_sig_addr(audit, msg, str, addr) gr_log_varargs(audit, msg, GR_SIG, str, addr) ++#define gr_log_sig_task(audit, msg, task, num) gr_log_varargs(audit, msg, GR_SIG2, task, num) ++#define gr_log_crash1(audit, msg, task, ulong) gr_log_varargs(audit, msg, GR_CRASH1, task, ulong) ++#define gr_log_crash2(audit, msg, task, ulong1) gr_log_varargs(audit, msg, GR_CRASH2, task, ulong1) ++#define gr_log_procacct(audit, msg, task, num1, num2, num3, num4, num5, num6, num7, num8, num9) gr_log_varargs(audit, msg, GR_PSACCT, task, num1, num2, num3, num4, num5, num6, num7, num8, num9) ++#define gr_log_rwxmap(audit, msg, str) gr_log_varargs(audit, msg, GR_RWXMAP, str) ++ ++void gr_log_varargs(int audit, const char *msg, int argtypes, ...); ++ ++#endif ++ ++#endif +diff --git a/include/linux/grmsg.h b/include/linux/grmsg.h +new file mode 100644 +index 0000000..54f4e85 +--- /dev/null ++++ b/include/linux/grmsg.h +@@ -0,0 +1,110 @@ ++#define DEFAULTSECMSG "%.256s[%.16s:%d] uid/euid:%u/%u gid/egid:%u/%u, parent %.256s[%.16s:%d] uid/euid:%u/%u gid/egid:%u/%u" ++#define GR_ACL_PROCACCT_MSG "%.256s[%.16s:%d] IP:%pI4 TTY:%.64s uid/euid:%u/%u gid/egid:%u/%u run time:[%ud %uh %um %us] cpu time:[%ud %uh %um %us] %s with exit code %ld, parent %.256s[%.16s:%d] IP:%pI4 TTY:%.64s uid/euid:%u/%u gid/egid:%u/%u" ++#define GR_PTRACE_ACL_MSG "denied ptrace of %.950s(%.16s:%d) by " ++#define GR_STOPMOD_MSG "denied modification of module state by " ++#define GR_ROFS_BLOCKWRITE_MSG "denied write to block device %.950s by " ++#define GR_ROFS_MOUNT_MSG "denied writable mount of %.950s by " ++#define GR_IOPERM_MSG "denied use of ioperm() by " ++#define GR_IOPL_MSG "denied use of iopl() by " ++#define GR_SHMAT_ACL_MSG "denied attach of shared memory of UID %u, PID %d, ID %u by " ++#define GR_UNIX_CHROOT_MSG "denied connect() to abstract AF_UNIX socket outside of chroot by " ++#define GR_SHMAT_CHROOT_MSG "denied attach of shared memory outside of chroot by " ++#define GR_MEM_READWRITE_MSG "denied access of range %Lx -> %Lx in /dev/mem by " ++#define GR_SYMLINK_MSG "not following symlink %.950s owned by %d.%d by " ++#define GR_LEARN_AUDIT_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%lu\t%lu\t%.4095s\t%lu\t%pI4" ++#define GR_ID_LEARN_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%c\t%d\t%d\t%d\t%pI4" ++#define GR_HIDDEN_ACL_MSG "%s access to hidden file %.950s by " ++#define GR_OPEN_ACL_MSG "%s open of %.950s for%s%s by " ++#define GR_CREATE_ACL_MSG "%s create of %.950s for%s%s by " ++#define GR_FIFO_MSG "denied writing FIFO %.950s of %d.%d by " ++#define GR_MKNOD_CHROOT_MSG "denied mknod of %.950s from chroot by " ++#define GR_MKNOD_ACL_MSG "%s mknod of %.950s by " ++#define GR_UNIXCONNECT_ACL_MSG "%s connect() to the unix domain socket %.950s by " ++#define GR_TTYSNIFF_ACL_MSG "terminal being sniffed by IP:%pI4 %.480s[%.16s:%d], parent %.480s[%.16s:%d] against " ++#define GR_MKDIR_ACL_MSG "%s mkdir of %.950s by " ++#define GR_RMDIR_ACL_MSG "%s rmdir of %.950s by " ++#define GR_UNLINK_ACL_MSG "%s unlink of %.950s by " ++#define GR_SYMLINK_ACL_MSG "%s symlink from %.480s to %.480s by " ++#define GR_HARDLINK_MSG "denied hardlink of %.930s (owned by %d.%d) to %.30s for " ++#define GR_LINK_ACL_MSG "%s link of %.480s to %.480s by " ++#define GR_INHERIT_ACL_MSG "successful inherit of %.480s's ACL for %.480s by " ++#define GR_RENAME_ACL_MSG "%s rename of %.480s to %.480s by " ++#define GR_UNSAFESHARE_EXEC_ACL_MSG "denied exec with cloned fs of %.950s by " ++#define GR_PTRACE_EXEC_ACL_MSG "denied ptrace of %.950s by " ++#define GR_EXEC_ACL_MSG "%s execution of %.950s by " ++#define GR_EXEC_TPE_MSG "denied untrusted exec (due to %.70s) of %.950s by " ++#define GR_SEGVSTART_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning uid %u from login for %lu seconds" ++#define GR_SEGVNOSUID_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning execution for %lu seconds" ++#define GR_MOUNT_CHROOT_MSG "denied mount of %.256s as %.930s from chroot by " ++#define GR_PIVOT_CHROOT_MSG "denied pivot_root from chroot by " ++#define GR_TRUNCATE_ACL_MSG "%s truncate of %.950s by " ++#define GR_ATIME_ACL_MSG "%s access time change of %.950s by " ++#define GR_ACCESS_ACL_MSG "%s access of %.950s for%s%s%s by " ++#define GR_CHROOT_CHROOT_MSG "denied double chroot to %.950s by " ++#define GR_CHMOD_CHROOT_MSG "denied chmod +s of %.950s by " ++#define GR_CHMOD_ACL_MSG "%s chmod of %.950s by " ++#define GR_CHROOT_FCHDIR_MSG "denied fchdir outside of chroot to %.950s by " ++#define GR_CHOWN_ACL_MSG "%s chown of %.950s by " ++#define GR_SETXATTR_ACL_MSG "%s setting extended attributes of %.950s by " ++#define GR_WRITLIB_ACL_MSG "denied load of writable library %.950s by " ++#define GR_INITF_ACL_MSG "init_variables() failed %s by " ++#define GR_DISABLED_ACL_MSG "Error loading %s, trying to run kernel with acls disabled. To disable acls at startup use <kernel image name> gracl=off from your boot loader" ++#define GR_DEV_ACL_MSG "/dev/grsec: %d bytes sent %d required, being fed garbage by " ++#define GR_SHUTS_ACL_MSG "shutdown auth success for " ++#define GR_SHUTF_ACL_MSG "shutdown auth failure for " ++#define GR_SHUTI_ACL_MSG "ignoring shutdown for disabled RBAC system for " ++#define GR_SEGVMODS_ACL_MSG "segvmod auth success for " ++#define GR_SEGVMODF_ACL_MSG "segvmod auth failure for " ++#define GR_SEGVMODI_ACL_MSG "ignoring segvmod for disabled RBAC system for " ++#define GR_ENABLE_ACL_MSG "%s RBAC system loaded by " ++#define GR_ENABLEF_ACL_MSG "unable to load %s for " ++#define GR_RELOADI_ACL_MSG "ignoring reload request for disabled RBAC system" ++#define GR_RELOAD_ACL_MSG "%s RBAC system reloaded by " ++#define GR_RELOADF_ACL_MSG "failed reload of %s for " ++#define GR_SPROLEI_ACL_MSG "ignoring change to special role for disabled RBAC system for " ++#define GR_SPROLES_ACL_MSG "successful change to special role %s (id %d) by " ++#define GR_SPROLEL_ACL_MSG "special role %s (id %d) exited by " ++#define GR_SPROLEF_ACL_MSG "special role %s failure for " ++#define GR_UNSPROLEI_ACL_MSG "ignoring unauth of special role for disabled RBAC system for " ++#define GR_UNSPROLES_ACL_MSG "successful unauth of special role %s (id %d) by " ++#define GR_INVMODE_ACL_MSG "invalid mode %d by " ++#define GR_PRIORITY_CHROOT_MSG "denied priority change of process (%.16s:%d) by " ++#define GR_FAILFORK_MSG "failed fork with errno %s by " ++#define GR_NICE_CHROOT_MSG "denied priority change by " ++#define GR_UNISIGLOG_MSG "%.32s occurred at %p in " ++#define GR_DUALSIGLOG_MSG "signal %d sent to " DEFAULTSECMSG " by " ++#define GR_SIG_ACL_MSG "denied send of signal %d to protected task " DEFAULTSECMSG " by " ++#define GR_SYSCTL_MSG "denied modification of grsecurity sysctl value : %.32s by " ++#define GR_SYSCTL_ACL_MSG "%s sysctl of %.950s for%s%s by " ++#define GR_TIME_MSG "time set by " ++#define GR_DEFACL_MSG "fatal: unable to find subject for (%.16s:%d), loaded by " ++#define GR_MMAP_ACL_MSG "%s executable mmap of %.950s by " ++#define GR_MPROTECT_ACL_MSG "%s executable mprotect of %.950s by " ++#define GR_SOCK_MSG "denied socket(%.16s,%.16s,%.16s) by " ++#define GR_SOCK_NOINET_MSG "denied socket(%.16s,%.16s,%d) by " ++#define GR_BIND_MSG "denied bind() by " ++#define GR_CONNECT_MSG "denied connect() by " ++#define GR_BIND_ACL_MSG "denied bind() to %pI4 port %u sock type %.16s protocol %.16s by " ++#define GR_CONNECT_ACL_MSG "denied connect() to %pI4 port %u sock type %.16s protocol %.16s by " ++#define GR_IP_LEARN_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%pI4\t%u\t%u\t%u\t%u\t%pI4" ++#define GR_EXEC_CHROOT_MSG "exec of %.980s within chroot by process " ++#define GR_CAP_ACL_MSG "use of %s denied for " ++#define GR_CAP_CHROOT_MSG "use of %s in chroot denied for " ++#define GR_CAP_ACL_MSG2 "use of %s permitted for " ++#define GR_USRCHANGE_ACL_MSG "change to uid %u denied for " ++#define GR_GRPCHANGE_ACL_MSG "change to gid %u denied for " ++#define GR_REMOUNT_AUDIT_MSG "remount of %.256s by " ++#define GR_UNMOUNT_AUDIT_MSG "unmount of %.256s by " ++#define GR_MOUNT_AUDIT_MSG "mount of %.256s to %.256s by " ++#define GR_CHDIR_AUDIT_MSG "chdir to %.980s by " ++#define GR_EXEC_AUDIT_MSG "exec of %.930s (%.128s) by " ++#define GR_RESOURCE_MSG "denied resource overstep by requesting %lu for %.16s against limit %lu for " ++#define GR_RWXMMAP_MSG "denied RWX mmap of %.950s by " ++#define GR_RWXMPROTECT_MSG "denied RWX mprotect of %.950s by " ++#define GR_TEXTREL_AUDIT_MSG "text relocation in %s, VMA:0x%08lx 0x%08lx by " ++#define GR_VM86_MSG "denied use of vm86 by " ++#define GR_PTRACE_AUDIT_MSG "process %.950s(%.16s:%d) attached to via ptrace by " ++#define GR_PTRACE_READEXEC_MSG "denied ptrace of unreadable binary %.950s by " ++#define GR_INIT_TRANSFER_MSG "persistent special role transferred privilege to init by " ++#define GR_BADPROCPID_MSG "denied read of sensitive /proc/pid/%s entry via fd passed across exec by " ++#define GR_SYMLINKOWNER_MSG "denied following symlink %.950s since symlink owner %u does not match target owner %u, by " +diff --git a/include/linux/grsecurity.h b/include/linux/grsecurity.h +new file mode 100644 +index 0000000..38bfb04 +--- /dev/null ++++ b/include/linux/grsecurity.h +@@ -0,0 +1,233 @@ ++#ifndef GR_SECURITY_H ++#define GR_SECURITY_H ++#include <linux/fs.h> ++#include <linux/fs_struct.h> ++#include <linux/binfmts.h> ++#include <linux/gracl.h> ++ ++/* notify of brain-dead configs */ ++#if defined(CONFIG_GRKERNSEC_PROC_USER) && defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++#error "CONFIG_GRKERNSEC_PROC_USER and CONFIG_GRKERNSEC_PROC_USERGROUP cannot both be enabled." ++#endif ++#if defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_PAGEEXEC) && !defined(CONFIG_PAX_SEGMEXEC) && !defined(CONFIG_PAX_KERNEXEC) ++#error "CONFIG_PAX_NOEXEC enabled, but PAGEEXEC, SEGMEXEC, and KERNEXEC are disabled." ++#endif ++#if defined(CONFIG_PAX_ASLR) && !defined(CONFIG_PAX_RANDKSTACK) && !defined(CONFIG_PAX_RANDUSTACK) && !defined(CONFIG_PAX_RANDMMAP) ++#error "CONFIG_PAX_ASLR enabled, but RANDKSTACK, RANDUSTACK, and RANDMMAP are disabled." ++#endif ++#if defined(CONFIG_PAX) && !defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_ASLR) ++#error "CONFIG_PAX enabled, but no PaX options are enabled." ++#endif ++ ++#include <linux/compat.h> ++ ++struct user_arg_ptr { ++#ifdef CONFIG_COMPAT ++ bool is_compat; ++#endif ++ union { ++ const char __user *const __user *native; ++#ifdef CONFIG_COMPAT ++ compat_uptr_t __user *compat; ++#endif ++ } ptr; ++}; ++ ++void gr_handle_brute_attach(struct task_struct *p, unsigned long mm_flags); ++void gr_handle_brute_check(void); ++void gr_handle_kernel_exploit(void); ++int gr_process_user_ban(void); ++ ++char gr_roletype_to_char(void); ++ ++int gr_acl_enable_at_secure(void); ++ ++int gr_check_user_change(int real, int effective, int fs); ++int gr_check_group_change(int real, int effective, int fs); ++ ++void gr_del_task_from_ip_table(struct task_struct *p); ++ ++int gr_pid_is_chrooted(struct task_struct *p); ++int gr_handle_chroot_fowner(struct pid *pid, enum pid_type type); ++int gr_handle_chroot_nice(void); ++int gr_handle_chroot_sysctl(const int op); ++int gr_handle_chroot_setpriority(struct task_struct *p, ++ const int niceval); ++int gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt); ++int gr_handle_chroot_chroot(const struct dentry *dentry, ++ const struct vfsmount *mnt); ++void gr_handle_chroot_chdir(struct path *path); ++int gr_handle_chroot_chmod(const struct dentry *dentry, ++ const struct vfsmount *mnt, const int mode); ++int gr_handle_chroot_mknod(const struct dentry *dentry, ++ const struct vfsmount *mnt, const int mode); ++int gr_handle_chroot_mount(const struct dentry *dentry, ++ const struct vfsmount *mnt, ++ const char *dev_name); ++int gr_handle_chroot_pivot(void); ++int gr_handle_chroot_unix(const pid_t pid); ++ ++int gr_handle_rawio(const struct inode *inode); ++ ++void gr_handle_ioperm(void); ++void gr_handle_iopl(void); ++ ++umode_t gr_acl_umask(void); ++ ++int gr_tpe_allow(const struct file *file); ++ ++void gr_set_chroot_entries(struct task_struct *task, struct path *path); ++void gr_clear_chroot_entries(struct task_struct *task); ++ ++void gr_log_forkfail(const int retval); ++void gr_log_timechange(void); ++void gr_log_signal(const int sig, const void *addr, const struct task_struct *t); ++void gr_log_chdir(const struct dentry *dentry, ++ const struct vfsmount *mnt); ++void gr_log_chroot_exec(const struct dentry *dentry, ++ const struct vfsmount *mnt); ++void gr_handle_exec_args(struct linux_binprm *bprm, struct user_arg_ptr argv); ++void gr_log_remount(const char *devname, const int retval); ++void gr_log_unmount(const char *devname, const int retval); ++void gr_log_mount(const char *from, const char *to, const int retval); ++void gr_log_textrel(struct vm_area_struct *vma); ++void gr_log_rwxmmap(struct file *file); ++void gr_log_rwxmprotect(struct file *file); ++ ++int gr_handle_follow_link(const struct inode *parent, ++ const struct inode *inode, ++ const struct dentry *dentry, ++ const struct vfsmount *mnt); ++int gr_handle_fifo(const struct dentry *dentry, ++ const struct vfsmount *mnt, ++ const struct dentry *dir, const int flag, ++ const int acc_mode); ++int gr_handle_hardlink(const struct dentry *dentry, ++ const struct vfsmount *mnt, ++ struct inode *inode, ++ const int mode, const char *to); ++ ++int gr_is_capable(const int cap); ++int gr_is_capable_nolog(const int cap); ++int gr_task_is_capable(const struct task_struct *task, const struct cred *cred, const int cap); ++int gr_task_is_capable_nolog(const struct task_struct *task, const int cap); ++ ++void gr_learn_resource(const struct task_struct *task, const int limit, ++ const unsigned long wanted, const int gt); ++void gr_copy_label(struct task_struct *tsk); ++void gr_handle_crash(struct task_struct *task, const int sig); ++int gr_handle_signal(const struct task_struct *p, const int sig); ++int gr_check_crash_uid(const uid_t uid); ++int gr_check_protected_task(const struct task_struct *task); ++int gr_check_protected_task_fowner(struct pid *pid, enum pid_type type); ++int gr_acl_handle_mmap(const struct file *file, ++ const unsigned long prot); ++int gr_acl_handle_mprotect(const struct file *file, ++ const unsigned long prot); ++int gr_check_hidden_task(const struct task_struct *tsk); ++__u32 gr_acl_handle_truncate(const struct dentry *dentry, ++ const struct vfsmount *mnt); ++__u32 gr_acl_handle_utime(const struct dentry *dentry, ++ const struct vfsmount *mnt); ++__u32 gr_acl_handle_access(const struct dentry *dentry, ++ const struct vfsmount *mnt, const int fmode); ++__u32 gr_acl_handle_chmod(const struct dentry *dentry, ++ const struct vfsmount *mnt, umode_t *mode); ++__u32 gr_acl_handle_chown(const struct dentry *dentry, ++ const struct vfsmount *mnt); ++__u32 gr_acl_handle_setxattr(const struct dentry *dentry, ++ const struct vfsmount *mnt); ++int gr_handle_ptrace(struct task_struct *task, const long request); ++int gr_handle_proc_ptrace(struct task_struct *task); ++__u32 gr_acl_handle_execve(const struct dentry *dentry, ++ const struct vfsmount *mnt); ++int gr_check_crash_exec(const struct file *filp); ++int gr_acl_is_enabled(void); ++void gr_set_kernel_label(struct task_struct *task); ++void gr_set_role_label(struct task_struct *task, const uid_t uid, ++ const gid_t gid); ++int gr_set_proc_label(const struct dentry *dentry, ++ const struct vfsmount *mnt, ++ const int unsafe_flags); ++__u32 gr_acl_handle_hidden_file(const struct dentry *dentry, ++ const struct vfsmount *mnt); ++__u32 gr_acl_handle_open(const struct dentry *dentry, ++ const struct vfsmount *mnt, int acc_mode); ++__u32 gr_acl_handle_creat(const struct dentry *dentry, ++ const struct dentry *p_dentry, ++ const struct vfsmount *p_mnt, ++ int open_flags, int acc_mode, const int imode); ++void gr_handle_create(const struct dentry *dentry, ++ const struct vfsmount *mnt); ++void gr_handle_proc_create(const struct dentry *dentry, ++ const struct inode *inode); ++__u32 gr_acl_handle_mknod(const struct dentry *new_dentry, ++ const struct dentry *parent_dentry, ++ const struct vfsmount *parent_mnt, ++ const int mode); ++__u32 gr_acl_handle_mkdir(const struct dentry *new_dentry, ++ const struct dentry *parent_dentry, ++ const struct vfsmount *parent_mnt); ++__u32 gr_acl_handle_rmdir(const struct dentry *dentry, ++ const struct vfsmount *mnt); ++void gr_handle_delete(const ino_t ino, const dev_t dev); ++__u32 gr_acl_handle_unlink(const struct dentry *dentry, ++ const struct vfsmount *mnt); ++__u32 gr_acl_handle_symlink(const struct dentry *new_dentry, ++ const struct dentry *parent_dentry, ++ const struct vfsmount *parent_mnt, ++ const char *from); ++__u32 gr_acl_handle_link(const struct dentry *new_dentry, ++ const struct dentry *parent_dentry, ++ const struct vfsmount *parent_mnt, ++ const struct dentry *old_dentry, ++ const struct vfsmount *old_mnt, const char *to); ++int gr_handle_symlink_owner(const struct path *link, const struct inode *target); ++int gr_acl_handle_rename(struct dentry *new_dentry, ++ struct dentry *parent_dentry, ++ const struct vfsmount *parent_mnt, ++ struct dentry *old_dentry, ++ struct inode *old_parent_inode, ++ struct vfsmount *old_mnt, const char *newname); ++void gr_handle_rename(struct inode *old_dir, struct inode *new_dir, ++ struct dentry *old_dentry, ++ struct dentry *new_dentry, ++ struct vfsmount *mnt, const __u8 replace); ++__u32 gr_check_link(const struct dentry *new_dentry, ++ const struct dentry *parent_dentry, ++ const struct vfsmount *parent_mnt, ++ const struct dentry *old_dentry, ++ const struct vfsmount *old_mnt); ++int gr_acl_handle_filldir(const struct file *file, const char *name, ++ const unsigned int namelen, const ino_t ino); ++ ++__u32 gr_acl_handle_unix(const struct dentry *dentry, ++ const struct vfsmount *mnt); ++void gr_acl_handle_exit(void); ++void gr_acl_handle_psacct(struct task_struct *task, const long code); ++int gr_acl_handle_procpidmem(const struct task_struct *task); ++int gr_handle_rofs_mount(struct dentry *dentry, struct vfsmount *mnt, int mnt_flags); ++int gr_handle_rofs_blockwrite(struct dentry *dentry, struct vfsmount *mnt, int acc_mode); ++void gr_audit_ptrace(struct task_struct *task); ++dev_t gr_get_dev_from_dentry(struct dentry *dentry); ++ ++int gr_ptrace_readexec(struct file *file, int unsafe_flags); ++ ++#ifdef CONFIG_GRKERNSEC ++void task_grsec_rbac(struct seq_file *m, struct task_struct *p); ++void gr_handle_vm86(void); ++void gr_handle_mem_readwrite(u64 from, u64 to); ++ ++void gr_log_badprocpid(const char *entry); ++ ++extern int grsec_enable_dmesg; ++extern int grsec_disable_privio; ++#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK ++extern int grsec_enable_chroot_findtask; ++#endif ++#ifdef CONFIG_GRKERNSEC_SETXID ++extern int grsec_enable_setxid; ++#endif ++#endif ++ ++#endif +diff --git a/include/linux/grsock.h b/include/linux/grsock.h +new file mode 100644 +index 0000000..e7ffaaf +--- /dev/null ++++ b/include/linux/grsock.h +@@ -0,0 +1,19 @@ ++#ifndef __GRSOCK_H ++#define __GRSOCK_H ++ ++extern void gr_attach_curr_ip(const struct sock *sk); ++extern int gr_handle_sock_all(const int family, const int type, ++ const int protocol); ++extern int gr_handle_sock_server(const struct sockaddr *sck); ++extern int gr_handle_sock_server_other(const struct sock *sck); ++extern int gr_handle_sock_client(const struct sockaddr *sck); ++extern int gr_search_connect(struct socket * sock, ++ struct sockaddr_in * addr); ++extern int gr_search_bind(struct socket * sock, ++ struct sockaddr_in * addr); ++extern int gr_search_listen(struct socket * sock); ++extern int gr_search_accept(struct socket * sock); ++extern int gr_search_socket(const int domain, const int type, ++ const int protocol); ++ ++#endif +diff --git a/include/linux/hid.h b/include/linux/hid.h +index 3a95da6..51986f1 100644 +--- a/include/linux/hid.h ++++ b/include/linux/hid.h +@@ -696,7 +696,7 @@ struct hid_ll_driver { + unsigned int code, int value); + + int (*parse)(struct hid_device *hdev); +-}; ++} __no_const; + + #define PM_HINT_FULLON 1<<5 + #define PM_HINT_NORMAL 1<<1 +diff --git a/include/linux/highmem.h b/include/linux/highmem.h +index d3999b4..1304cb4 100644 +--- a/include/linux/highmem.h ++++ b/include/linux/highmem.h +@@ -221,6 +221,18 @@ static inline void clear_highpage(struct page *page) + kunmap_atomic(kaddr); + } + ++static inline void sanitize_highpage(struct page *page) ++{ ++ void *kaddr; ++ unsigned long flags; ++ ++ local_irq_save(flags); ++ kaddr = kmap_atomic(page); ++ clear_page(kaddr); ++ kunmap_atomic(kaddr); ++ local_irq_restore(flags); ++} ++ + static inline void zero_user_segments(struct page *page, + unsigned start1, unsigned end1, + unsigned start2, unsigned end2) +diff --git a/include/linux/i2c.h b/include/linux/i2c.h +index 195d8b3..e20cfab 100644 +--- a/include/linux/i2c.h ++++ b/include/linux/i2c.h +@@ -365,6 +365,7 @@ struct i2c_algorithm { + /* To determine what the adapter supports */ + u32 (*functionality) (struct i2c_adapter *); + }; ++typedef struct i2c_algorithm __no_const i2c_algorithm_no_const; + + /* + * i2c_adapter is the structure used to identify a physical i2c bus along +diff --git a/include/linux/i2o.h b/include/linux/i2o.h +index d23c3c2..eb63c81 100644 +--- a/include/linux/i2o.h ++++ b/include/linux/i2o.h +@@ -565,7 +565,7 @@ struct i2o_controller { + struct i2o_device *exec; /* Executive */ + #if BITS_PER_LONG == 64 + spinlock_t context_list_lock; /* lock for context_list */ +- atomic_t context_list_counter; /* needed for unique contexts */ ++ atomic_unchecked_t context_list_counter; /* needed for unique contexts */ + struct list_head context_list; /* list of context id's + and pointers */ + #endif +diff --git a/include/linux/if_team.h b/include/linux/if_team.h +index 58404b0..439ed95 100644 +--- a/include/linux/if_team.h ++++ b/include/linux/if_team.h +@@ -64,6 +64,7 @@ struct team_mode_ops { + void (*port_leave)(struct team *team, struct team_port *port); + void (*port_change_mac)(struct team *team, struct team_port *port); + }; ++typedef struct team_mode_ops __no_const team_mode_ops_no_const; + + enum team_option_type { + TEAM_OPTION_TYPE_U32, +@@ -112,7 +113,7 @@ struct team { + struct list_head option_list; + + const struct team_mode *mode; +- struct team_mode_ops ops; ++ team_mode_ops_no_const ops; + long mode_priv[TEAM_MODE_PRIV_LONGS]; + }; + +diff --git a/include/linux/init.h b/include/linux/init.h +index 6b95109..bcbdd68 100644 +--- a/include/linux/init.h ++++ b/include/linux/init.h +@@ -39,9 +39,15 @@ + * Also note, that this data cannot be "const". + */ + ++#ifdef MODULE ++#define add_latent_entropy ++#else ++#define add_latent_entropy __latent_entropy ++#endif ++ + /* These are for everybody (although not all archs will actually + discard it in modules) */ +-#define __init __section(.init.text) __cold notrace ++#define __init __section(.init.text) __cold notrace add_latent_entropy + #define __initdata __section(.init.data) + #define __initconst __section(.init.rodata) + #define __exitdata __section(.exit.data) +@@ -83,7 +89,7 @@ + #define __exit __section(.exit.text) __exitused __cold notrace + + /* Used for HOTPLUG */ +-#define __devinit __section(.devinit.text) __cold notrace ++#define __devinit __section(.devinit.text) __cold notrace add_latent_entropy + #define __devinitdata __section(.devinit.data) + #define __devinitconst __section(.devinit.rodata) + #define __devexit __section(.devexit.text) __exitused __cold notrace +@@ -91,7 +97,7 @@ + #define __devexitconst __section(.devexit.rodata) + + /* Used for HOTPLUG_CPU */ +-#define __cpuinit __section(.cpuinit.text) __cold notrace ++#define __cpuinit __section(.cpuinit.text) __cold notrace add_latent_entropy + #define __cpuinitdata __section(.cpuinit.data) + #define __cpuinitconst __section(.cpuinit.rodata) + #define __cpuexit __section(.cpuexit.text) __exitused __cold notrace +@@ -99,7 +105,7 @@ + #define __cpuexitconst __section(.cpuexit.rodata) + + /* Used for MEMORY_HOTPLUG */ +-#define __meminit __section(.meminit.text) __cold notrace ++#define __meminit __section(.meminit.text) __cold notrace add_latent_entropy + #define __meminitdata __section(.meminit.data) + #define __meminitconst __section(.meminit.rodata) + #define __memexit __section(.memexit.text) __exitused __cold notrace +@@ -294,13 +300,13 @@ void __init parse_early_options(char *cmdline); + + /* Each module must use one module_init(). */ + #define module_init(initfn) \ +- static inline initcall_t __inittest(void) \ ++ static inline __used initcall_t __inittest(void) \ + { return initfn; } \ + int init_module(void) __attribute__((alias(#initfn))); + + /* This is only required if you want to be unloadable. */ + #define module_exit(exitfn) \ +- static inline exitcall_t __exittest(void) \ ++ static inline __used exitcall_t __exittest(void) \ + { return exitfn; } \ + void cleanup_module(void) __attribute__((alias(#exitfn))); + +diff --git a/include/linux/init_task.h b/include/linux/init_task.h +index e4baff5..83bb175 100644 +--- a/include/linux/init_task.h ++++ b/include/linux/init_task.h +@@ -134,6 +134,12 @@ extern struct cred init_cred; + + #define INIT_TASK_COMM "swapper" + ++#ifdef CONFIG_X86 ++#define INIT_TASK_THREAD_INFO .tinfo = INIT_THREAD_INFO, ++#else ++#define INIT_TASK_THREAD_INFO ++#endif ++ + /* + * INIT_TASK is used to set up the first task table, touch at + * your own risk!. Base=0, limit=0x1fffff (=2MB) +@@ -172,6 +178,7 @@ extern struct cred init_cred; + RCU_INIT_POINTER(.cred, &init_cred), \ + .comm = INIT_TASK_COMM, \ + .thread = INIT_THREAD, \ ++ INIT_TASK_THREAD_INFO \ + .fs = &init_fs, \ + .files = &init_files, \ + .signal = &init_signals, \ +diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h +index e6ca56d..8583707 100644 +--- a/include/linux/intel-iommu.h ++++ b/include/linux/intel-iommu.h +@@ -296,7 +296,7 @@ struct iommu_flush { + u8 fm, u64 type); + void (*flush_iotlb)(struct intel_iommu *iommu, u16 did, u64 addr, + unsigned int size_order, u64 type); +-}; ++} __no_const; + + enum { + SR_DMAR_FECTL_REG, +diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h +index 2aea5d2..0b82f0c 100644 +--- a/include/linux/interrupt.h ++++ b/include/linux/interrupt.h +@@ -439,7 +439,7 @@ enum + /* map softirq index to softirq name. update 'softirq_to_name' in + * kernel/softirq.c when adding a new softirq. + */ +-extern char *softirq_to_name[NR_SOFTIRQS]; ++extern const char * const softirq_to_name[NR_SOFTIRQS]; + + /* softirq mask and active fields moved to irq_cpustat_t in + * asm/hardirq.h to get better cache usage. KAO +@@ -447,12 +447,12 @@ extern char *softirq_to_name[NR_SOFTIRQS]; + + struct softirq_action + { +- void (*action)(struct softirq_action *); ++ void (*action)(void); + }; + + asmlinkage void do_softirq(void); + asmlinkage void __do_softirq(void); +-extern void open_softirq(int nr, void (*action)(struct softirq_action *)); ++extern void open_softirq(int nr, void (*action)(void)); + extern void softirq_init(void); + extern void __raise_softirq_irqoff(unsigned int nr); + +diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h +index 3875719..4cd454c 100644 +--- a/include/linux/kallsyms.h ++++ b/include/linux/kallsyms.h +@@ -15,7 +15,8 @@ + + struct module; + +-#ifdef CONFIG_KALLSYMS ++#if !defined(__INCLUDED_BY_HIDESYM) || !defined(CONFIG_KALLSYMS) ++#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM) + /* Lookup the address for a symbol. Returns 0 if not found. */ + unsigned long kallsyms_lookup_name(const char *name); + +@@ -99,6 +100,16 @@ static inline int lookup_symbol_attrs(unsigned long addr, unsigned long *size, u + /* Stupid that this does nothing, but I didn't create this mess. */ + #define __print_symbol(fmt, addr) + #endif /*CONFIG_KALLSYMS*/ ++#else /* when included by kallsyms.c, vsnprintf.c, or ++ arch/x86/kernel/dumpstack.c, with HIDESYM enabled */ ++extern void __print_symbol(const char *fmt, unsigned long address); ++extern int sprint_backtrace(char *buffer, unsigned long address); ++extern int sprint_symbol(char *buffer, unsigned long address); ++const char *kallsyms_lookup(unsigned long addr, ++ unsigned long *symbolsize, ++ unsigned long *offset, ++ char **modname, char *namebuf); ++#endif + + /* This macro allows us to keep printk typechecking */ + static __printf(1, 2) +diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h +index c4d2fc1..5df9c19 100644 +--- a/include/linux/kgdb.h ++++ b/include/linux/kgdb.h +@@ -53,7 +53,7 @@ extern int kgdb_connected; + extern int kgdb_io_module_registered; + + extern atomic_t kgdb_setting_breakpoint; +-extern atomic_t kgdb_cpu_doing_single_step; ++extern atomic_unchecked_t kgdb_cpu_doing_single_step; + + extern struct task_struct *kgdb_usethread; + extern struct task_struct *kgdb_contthread; +@@ -252,7 +252,7 @@ struct kgdb_arch { + void (*disable_hw_break)(struct pt_regs *regs); + void (*remove_all_hw_break)(void); + void (*correct_hw_break)(void); +-}; ++} __do_const; + + /** + * struct kgdb_io - Describe the interface for an I/O driver to talk with KGDB. +@@ -277,7 +277,7 @@ struct kgdb_io { + void (*pre_exception) (void); + void (*post_exception) (void); + int is_console; +-}; ++} __do_const; + + extern struct kgdb_arch arch_kgdb_ops; + +diff --git a/include/linux/kmod.h b/include/linux/kmod.h +index dd99c32..da06047 100644 +--- a/include/linux/kmod.h ++++ b/include/linux/kmod.h +@@ -34,6 +34,8 @@ extern char modprobe_path[]; /* for sysctl */ + * usually useless though. */ + extern __printf(2, 3) + int __request_module(bool wait, const char *name, ...); ++extern __printf(3, 4) ++int ___request_module(bool wait, char *param_name, const char *name, ...); + #define request_module(mod...) __request_module(true, mod) + #define request_module_nowait(mod...) __request_module(false, mod) + #define try_then_request_module(x, mod...) \ +diff --git a/include/linux/kref.h b/include/linux/kref.h +index 9c07dce..a92fa71 100644 +--- a/include/linux/kref.h ++++ b/include/linux/kref.h +@@ -63,7 +63,7 @@ static inline void kref_get(struct kref *kref) + static inline int kref_sub(struct kref *kref, unsigned int count, + void (*release)(struct kref *kref)) + { +- WARN_ON(release == NULL); ++ BUG_ON(release == NULL); + + if (atomic_sub_and_test((int) count, &kref->refcount)) { + release(kref); +diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h +index 72cbf08..dd0201d 100644 +--- a/include/linux/kvm_host.h ++++ b/include/linux/kvm_host.h +@@ -322,7 +322,7 @@ void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); + void vcpu_load(struct kvm_vcpu *vcpu); + void vcpu_put(struct kvm_vcpu *vcpu); + +-int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, ++int kvm_init(const void *opaque, unsigned vcpu_size, unsigned vcpu_align, + struct module *module); + void kvm_exit(void); + +@@ -486,7 +486,7 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, + struct kvm_guest_debug *dbg); + int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run); + +-int kvm_arch_init(void *opaque); ++int kvm_arch_init(const void *opaque); + void kvm_arch_exit(void); + + int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu); +diff --git a/include/linux/libata.h b/include/linux/libata.h +index 6e887c7..4539601 100644 +--- a/include/linux/libata.h ++++ b/include/linux/libata.h +@@ -910,7 +910,7 @@ struct ata_port_operations { + * fields must be pointers. + */ + const struct ata_port_operations *inherits; +-}; ++} __do_const; + + struct ata_port_info { + unsigned long flags; +diff --git a/include/linux/mca.h b/include/linux/mca.h +index 3797270..7765ede 100644 +--- a/include/linux/mca.h ++++ b/include/linux/mca.h +@@ -80,7 +80,7 @@ struct mca_bus_accessor_functions { + int region); + void * (*mca_transform_memory)(struct mca_device *, + void *memory); +-}; ++} __no_const; + + struct mca_bus { + u64 default_dma_mask; +diff --git a/include/linux/memory.h b/include/linux/memory.h +index 1ac7f6e..a5794d0 100644 +--- a/include/linux/memory.h ++++ b/include/linux/memory.h +@@ -143,7 +143,7 @@ struct memory_accessor { + size_t count); + ssize_t (*write)(struct memory_accessor *, const char *buf, + off_t offset, size_t count); +-}; ++} __no_const; + + /* + * Kernel text modification mutex, used for code patching. Users of this lock +diff --git a/include/linux/mfd/abx500.h b/include/linux/mfd/abx500.h +index ee96cd5..7823c3a 100644 +--- a/include/linux/mfd/abx500.h ++++ b/include/linux/mfd/abx500.h +@@ -455,6 +455,7 @@ struct abx500_ops { + int (*event_registers_startup_state_get) (struct device *, u8 *); + int (*startup_irq_enabled) (struct device *, unsigned int); + }; ++typedef struct abx500_ops __no_const abx500_ops_no_const; + + int abx500_register_ops(struct device *core_dev, struct abx500_ops *ops); + void abx500_remove_ops(struct device *dev); +diff --git a/include/linux/mfd/abx500/ux500_chargalg.h b/include/linux/mfd/abx500/ux500_chargalg.h +index 9b07725..3d55001 100644 +--- a/include/linux/mfd/abx500/ux500_chargalg.h ++++ b/include/linux/mfd/abx500/ux500_chargalg.h +@@ -19,7 +19,7 @@ struct ux500_charger_ops { + int (*enable) (struct ux500_charger *, int, int, int); + int (*kick_wd) (struct ux500_charger *); + int (*update_curr) (struct ux500_charger *, int); +-}; ++} __no_const; + + /** + * struct ux500_charger - power supply ux500 charger sub class +diff --git a/include/linux/mm.h b/include/linux/mm.h +index 74aa71b..4ae97ba 100644 +--- a/include/linux/mm.h ++++ b/include/linux/mm.h +@@ -116,7 +116,14 @@ extern unsigned int kobjsize(const void *objp); + + #define VM_CAN_NONLINEAR 0x08000000 /* Has ->fault & does nonlinear pages */ + #define VM_MIXEDMAP 0x10000000 /* Can contain "struct page" and pure PFN pages */ ++ ++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32) ++#define VM_SAO 0x00000000 /* Strong Access Ordering (powerpc) */ ++#define VM_PAGEEXEC 0x20000000 /* vma->vm_page_prot needs special handling */ ++#else + #define VM_SAO 0x20000000 /* Strong Access Ordering (powerpc) */ ++#endif ++ + #define VM_PFN_AT_MMAP 0x40000000 /* PFNMAP vma that is fully mapped at mmap time */ + #define VM_MERGEABLE 0x80000000 /* KSM may merge identical pages */ + +@@ -1013,34 +1020,6 @@ int set_page_dirty(struct page *page); + int set_page_dirty_lock(struct page *page); + int clear_page_dirty_for_io(struct page *page); + +-/* Is the vma a continuation of the stack vma above it? */ +-static inline int vma_growsdown(struct vm_area_struct *vma, unsigned long addr) +-{ +- return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN); +-} +- +-static inline int stack_guard_page_start(struct vm_area_struct *vma, +- unsigned long addr) +-{ +- return (vma->vm_flags & VM_GROWSDOWN) && +- (vma->vm_start == addr) && +- !vma_growsdown(vma->vm_prev, addr); +-} +- +-/* Is the vma a continuation of the stack vma below it? */ +-static inline int vma_growsup(struct vm_area_struct *vma, unsigned long addr) +-{ +- return vma && (vma->vm_start == addr) && (vma->vm_flags & VM_GROWSUP); +-} +- +-static inline int stack_guard_page_end(struct vm_area_struct *vma, +- unsigned long addr) +-{ +- return (vma->vm_flags & VM_GROWSUP) && +- (vma->vm_end == addr) && +- !vma_growsup(vma->vm_next, addr); +-} +- + extern pid_t + vm_is_stack(struct task_struct *task, struct vm_area_struct *vma, int in_group); + +@@ -1139,6 +1118,15 @@ static inline void sync_mm_rss(struct mm_struct *mm) + } + #endif + ++#ifdef CONFIG_MMU ++pgprot_t vm_get_page_prot(vm_flags_t vm_flags); ++#else ++static inline pgprot_t vm_get_page_prot(vm_flags_t vm_flags) ++{ ++ return __pgprot(0); ++} ++#endif ++ + int vma_wants_writenotify(struct vm_area_struct *vma); + + extern pte_t *__get_locked_pte(struct mm_struct *mm, unsigned long addr, +@@ -1157,8 +1145,15 @@ static inline int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, + { + return 0; + } ++ ++static inline int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, ++ unsigned long address) ++{ ++ return 0; ++} + #else + int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address); ++int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address); + #endif + + #ifdef __PAGETABLE_PMD_FOLDED +@@ -1167,8 +1162,15 @@ static inline int __pmd_alloc(struct mm_struct *mm, pud_t *pud, + { + return 0; + } ++ ++static inline int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, ++ unsigned long address) ++{ ++ return 0; ++} + #else + int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address); ++int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address); + #endif + + int __pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma, +@@ -1186,11 +1188,23 @@ static inline pud_t *pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long a + NULL: pud_offset(pgd, address); + } + ++static inline pud_t *pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address) ++{ ++ return (unlikely(pgd_none(*pgd)) && __pud_alloc_kernel(mm, pgd, address))? ++ NULL: pud_offset(pgd, address); ++} ++ + static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address) + { + return (unlikely(pud_none(*pud)) && __pmd_alloc(mm, pud, address))? + NULL: pmd_offset(pud, address); + } ++ ++static inline pmd_t *pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address) ++{ ++ return (unlikely(pud_none(*pud)) && __pmd_alloc_kernel(mm, pud, address))? ++ NULL: pmd_offset(pud, address); ++} + #endif /* CONFIG_MMU && !__ARCH_HAS_4LEVEL_HACK */ + + #if USE_SPLIT_PTLOCKS +@@ -1400,6 +1414,7 @@ extern unsigned long do_mmap(struct file *, unsigned long, + unsigned long, unsigned long, + unsigned long, unsigned long); + extern int do_munmap(struct mm_struct *, unsigned long, size_t); ++extern int __do_munmap(struct mm_struct *, unsigned long, size_t); + + /* These take the mm semaphore themselves */ + extern unsigned long vm_brk(unsigned long, unsigned long); +@@ -1462,6 +1477,10 @@ extern struct vm_area_struct * find_vma(struct mm_struct * mm, unsigned long add + extern struct vm_area_struct * find_vma_prev(struct mm_struct * mm, unsigned long addr, + struct vm_area_struct **pprev); + ++extern struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma); ++extern __must_check long pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma); ++extern void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl); ++ + /* Look up the first VMA which intersects the interval start_addr..end_addr-1, + NULL if none. Assume start_addr < end_addr. */ + static inline struct vm_area_struct * find_vma_intersection(struct mm_struct * mm, unsigned long start_addr, unsigned long end_addr) +@@ -1490,15 +1509,6 @@ static inline struct vm_area_struct *find_exact_vma(struct mm_struct *mm, + return vma; + } + +-#ifdef CONFIG_MMU +-pgprot_t vm_get_page_prot(unsigned long vm_flags); +-#else +-static inline pgprot_t vm_get_page_prot(unsigned long vm_flags) +-{ +- return __pgprot(0); +-} +-#endif +- + struct vm_area_struct *find_extend_vma(struct mm_struct *, unsigned long addr); + int remap_pfn_range(struct vm_area_struct *, unsigned long addr, + unsigned long pfn, unsigned long size, pgprot_t); +@@ -1602,7 +1612,7 @@ extern int unpoison_memory(unsigned long pfn); + extern int sysctl_memory_failure_early_kill; + extern int sysctl_memory_failure_recovery; + extern void shake_page(struct page *p, int access); +-extern atomic_long_t mce_bad_pages; ++extern atomic_long_unchecked_t mce_bad_pages; + extern int soft_offline_page(struct page *page, int flags); + + extern void dump_page(struct page *page); +@@ -1633,5 +1643,11 @@ static inline unsigned int debug_guardpage_minorder(void) { return 0; } + static inline bool page_is_guard(struct page *page) { return false; } + #endif /* CONFIG_DEBUG_PAGEALLOC */ + ++#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT ++extern void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot); ++#else ++static inline void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot) {} ++#endif ++ + #endif /* __KERNEL__ */ + #endif /* _LINUX_MM_H */ +diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h +index b35752f..41075a0 100644 +--- a/include/linux/mm_types.h ++++ b/include/linux/mm_types.h +@@ -262,6 +262,8 @@ struct vm_area_struct { + #ifdef CONFIG_NUMA + struct mempolicy *vm_policy; /* NUMA policy for the VMA */ + #endif ++ ++ struct vm_area_struct *vm_mirror;/* PaX: mirror vma or NULL */ + }; + + struct core_thread { +@@ -336,7 +338,7 @@ struct mm_struct { + unsigned long def_flags; + unsigned long nr_ptes; /* Page table pages */ + unsigned long start_code, end_code, start_data, end_data; +- unsigned long start_brk, brk, start_stack; ++ unsigned long brk_gap, start_brk, brk, start_stack; + unsigned long arg_start, arg_end, env_start, env_end; + + unsigned long saved_auxv[AT_VECTOR_SIZE]; /* for /proc/PID/auxv */ +@@ -398,6 +400,24 @@ struct mm_struct { + #ifdef CONFIG_CPUMASK_OFFSTACK + struct cpumask cpumask_allocation; + #endif ++ ++#if defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS) || defined(CONFIG_PAX_XATTR_PAX_FLAGS) || defined(CONFIG_PAX_HAVE_ACL_FLAGS) || defined(CONFIG_PAX_HOOK_ACL_FLAGS) ++ unsigned long pax_flags; ++#endif ++ ++#ifdef CONFIG_PAX_DLRESOLVE ++ unsigned long call_dl_resolve; ++#endif ++ ++#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT) ++ unsigned long call_syscall; ++#endif ++ ++#ifdef CONFIG_PAX_ASLR ++ unsigned long delta_mmap; /* randomized offset */ ++ unsigned long delta_stack; /* randomized offset */ ++#endif ++ + }; + + static inline void mm_init_cpumask(struct mm_struct *mm) +diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h +index 1d1b1e1..2a13c78 100644 +--- a/include/linux/mmu_notifier.h ++++ b/include/linux/mmu_notifier.h +@@ -255,12 +255,12 @@ static inline void mmu_notifier_mm_destroy(struct mm_struct *mm) + */ + #define ptep_clear_flush_notify(__vma, __address, __ptep) \ + ({ \ +- pte_t __pte; \ ++ pte_t ___pte; \ + struct vm_area_struct *___vma = __vma; \ + unsigned long ___address = __address; \ +- __pte = ptep_clear_flush(___vma, ___address, __ptep); \ ++ ___pte = ptep_clear_flush(___vma, ___address, __ptep); \ + mmu_notifier_invalidate_page(___vma->vm_mm, ___address); \ +- __pte; \ ++ ___pte; \ + }) + + #define pmdp_clear_flush_notify(__vma, __address, __pmdp) \ +diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h +index 5f6806b..49db2b2 100644 +--- a/include/linux/mmzone.h ++++ b/include/linux/mmzone.h +@@ -380,7 +380,7 @@ struct zone { + unsigned long flags; /* zone flags, see below */ + + /* Zone statistics */ +- atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS]; ++ atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS]; + + /* + * The target ratio of ACTIVE_ANON to INACTIVE_ANON pages on +diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h +index 501da4c..ba79bb4 100644 +--- a/include/linux/mod_devicetable.h ++++ b/include/linux/mod_devicetable.h +@@ -12,7 +12,7 @@ + typedef unsigned long kernel_ulong_t; + #endif + +-#define PCI_ANY_ID (~0) ++#define PCI_ANY_ID ((__u16)~0) + + struct pci_device_id { + __u32 vendor, device; /* Vendor and device ID or PCI_ANY_ID*/ +@@ -131,7 +131,7 @@ struct usb_device_id { + #define USB_DEVICE_ID_MATCH_INT_SUBCLASS 0x0100 + #define USB_DEVICE_ID_MATCH_INT_PROTOCOL 0x0200 + +-#define HID_ANY_ID (~0) ++#define HID_ANY_ID (~0U) + + struct hid_device_id { + __u16 bus; +diff --git a/include/linux/module.h b/include/linux/module.h +index fbcafe2..e5d9587 100644 +--- a/include/linux/module.h ++++ b/include/linux/module.h +@@ -17,6 +17,7 @@ + #include <linux/moduleparam.h> + #include <linux/tracepoint.h> + #include <linux/export.h> ++#include <linux/fs.h> + + #include <linux/percpu.h> + #include <asm/module.h> +@@ -273,19 +274,16 @@ struct module + int (*init)(void); + + /* If this is non-NULL, vfree after init() returns */ +- void *module_init; ++ void *module_init_rx, *module_init_rw; + + /* Here is the actual code + data, vfree'd on unload. */ +- void *module_core; ++ void *module_core_rx, *module_core_rw; + + /* Here are the sizes of the init and core sections */ +- unsigned int init_size, core_size; ++ unsigned int init_size_rw, core_size_rw; + + /* The size of the executable code in each section. */ +- unsigned int init_text_size, core_text_size; +- +- /* Size of RO sections of the module (text+rodata) */ +- unsigned int init_ro_size, core_ro_size; ++ unsigned int init_size_rx, core_size_rx; + + /* Arch-specific module values */ + struct mod_arch_specific arch; +@@ -341,6 +339,10 @@ struct module + #ifdef CONFIG_EVENT_TRACING + struct ftrace_event_call **trace_events; + unsigned int num_trace_events; ++ struct file_operations trace_id; ++ struct file_operations trace_enable; ++ struct file_operations trace_format; ++ struct file_operations trace_filter; + #endif + #ifdef CONFIG_FTRACE_MCOUNT_RECORD + unsigned int num_ftrace_callsites; +@@ -388,16 +390,46 @@ bool is_module_address(unsigned long addr); + bool is_module_percpu_address(unsigned long addr); + bool is_module_text_address(unsigned long addr); + ++static inline int within_module_range(unsigned long addr, void *start, unsigned long size) ++{ ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ if (ktla_ktva(addr) >= (unsigned long)start && ++ ktla_ktva(addr) < (unsigned long)start + size) ++ return 1; ++#endif ++ ++ return ((void *)addr >= start && (void *)addr < start + size); ++} ++ ++static inline int within_module_core_rx(unsigned long addr, struct module *mod) ++{ ++ return within_module_range(addr, mod->module_core_rx, mod->core_size_rx); ++} ++ ++static inline int within_module_core_rw(unsigned long addr, struct module *mod) ++{ ++ return within_module_range(addr, mod->module_core_rw, mod->core_size_rw); ++} ++ ++static inline int within_module_init_rx(unsigned long addr, struct module *mod) ++{ ++ return within_module_range(addr, mod->module_init_rx, mod->init_size_rx); ++} ++ ++static inline int within_module_init_rw(unsigned long addr, struct module *mod) ++{ ++ return within_module_range(addr, mod->module_init_rw, mod->init_size_rw); ++} ++ + static inline int within_module_core(unsigned long addr, struct module *mod) + { +- return (unsigned long)mod->module_core <= addr && +- addr < (unsigned long)mod->module_core + mod->core_size; ++ return within_module_core_rx(addr, mod) || within_module_core_rw(addr, mod); + } + + static inline int within_module_init(unsigned long addr, struct module *mod) + { +- return (unsigned long)mod->module_init <= addr && +- addr < (unsigned long)mod->module_init + mod->init_size; ++ return within_module_init_rx(addr, mod) || within_module_init_rw(addr, mod); + } + + /* Search for module by name: must hold module_mutex. */ +diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h +index b2be02e..72d2f78 100644 +--- a/include/linux/moduleloader.h ++++ b/include/linux/moduleloader.h +@@ -23,11 +23,23 @@ unsigned int arch_mod_section_prepend(struct module *mod, unsigned int section); + + /* Allocator used for allocating struct module, core sections and init + sections. Returns NULL on failure. */ +-void *module_alloc(unsigned long size); ++void *module_alloc(unsigned long size) __size_overflow(1); ++ ++#ifdef CONFIG_PAX_KERNEXEC ++void *module_alloc_exec(unsigned long size) __size_overflow(1); ++#else ++#define module_alloc_exec(x) module_alloc(x) ++#endif + + /* Free memory returned from module_alloc. */ + void module_free(struct module *mod, void *module_region); + ++#ifdef CONFIG_PAX_KERNEXEC ++void module_free_exec(struct module *mod, void *module_region); ++#else ++#define module_free_exec(x, y) module_free((x), (y)) ++#endif ++ + /* Apply the given relocation to the (simplified) ELF. Return -error + or 0. */ + int apply_relocate(Elf_Shdr *sechdrs, +diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h +index 944bc18..042d291 100644 +--- a/include/linux/moduleparam.h ++++ b/include/linux/moduleparam.h +@@ -286,7 +286,7 @@ static inline void __kernel_param_unlock(void) + * @len is usually just sizeof(string). + */ + #define module_param_string(name, string, len, perm) \ +- static const struct kparam_string __param_string_##name \ ++ static const struct kparam_string __param_string_##name __used \ + = { len, string }; \ + __module_param_call(MODULE_PARAM_PREFIX, name, \ + &param_ops_string, \ +@@ -424,7 +424,7 @@ extern int param_set_bint(const char *val, const struct kernel_param *kp); + */ + #define module_param_array_named(name, array, type, nump, perm) \ + param_check_##type(name, &(array)[0]); \ +- static const struct kparam_array __param_arr_##name \ ++ static const struct kparam_array __param_arr_##name __used \ + = { .max = ARRAY_SIZE(array), .num = nump, \ + .ops = &param_ops_##type, \ + .elemsize = sizeof(array[0]), .elem = array }; \ +diff --git a/include/linux/namei.h b/include/linux/namei.h +index ffc0213..2c1f2cb 100644 +--- a/include/linux/namei.h ++++ b/include/linux/namei.h +@@ -24,7 +24,7 @@ struct nameidata { + unsigned seq; + int last_type; + unsigned depth; +- char *saved_names[MAX_NESTED_LINKS + 1]; ++ const char *saved_names[MAX_NESTED_LINKS + 1]; + + /* Intent data */ + union { +@@ -94,12 +94,12 @@ extern int follow_up(struct path *); + extern struct dentry *lock_rename(struct dentry *, struct dentry *); + extern void unlock_rename(struct dentry *, struct dentry *); + +-static inline void nd_set_link(struct nameidata *nd, char *path) ++static inline void nd_set_link(struct nameidata *nd, const char *path) + { + nd->saved_names[nd->depth] = path; + } + +-static inline char *nd_get_link(struct nameidata *nd) ++static inline const char *nd_get_link(const struct nameidata *nd) + { + return nd->saved_names[nd->depth]; + } +diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h +index 33900a5..2072000 100644 +--- a/include/linux/netdevice.h ++++ b/include/linux/netdevice.h +@@ -1003,6 +1003,7 @@ struct net_device_ops { + int (*ndo_neigh_construct)(struct neighbour *n); + void (*ndo_neigh_destroy)(struct neighbour *n); + }; ++typedef struct net_device_ops __no_const net_device_ops_no_const; + + /* + * The DEVICE structure. +@@ -1064,7 +1065,7 @@ struct net_device { + int iflink; + + struct net_device_stats stats; +- atomic_long_t rx_dropped; /* dropped packets by core network ++ atomic_long_unchecked_t rx_dropped; /* dropped packets by core network + * Do not use this in drivers. + */ + +diff --git a/include/linux/netfilter/xt_gradm.h b/include/linux/netfilter/xt_gradm.h +new file mode 100644 +index 0000000..33f4af8 +--- /dev/null ++++ b/include/linux/netfilter/xt_gradm.h +@@ -0,0 +1,9 @@ ++#ifndef _LINUX_NETFILTER_XT_GRADM_H ++#define _LINUX_NETFILTER_XT_GRADM_H 1 ++ ++struct xt_gradm_mtinfo { ++ __u16 flags; ++ __u16 invflags; ++}; ++ ++#endif +diff --git a/include/linux/of_pdt.h b/include/linux/of_pdt.h +index c65a18a..0c05f3a 100644 +--- a/include/linux/of_pdt.h ++++ b/include/linux/of_pdt.h +@@ -32,7 +32,7 @@ struct of_pdt_ops { + + /* return 0 on success; fill in 'len' with number of bytes in path */ + int (*pkg2path)(phandle node, char *buf, const int buflen, int *len); +-}; ++} __no_const; + + extern void *prom_early_alloc(unsigned long size); + +diff --git a/include/linux/oprofile.h b/include/linux/oprofile.h +index a4c5624..79d6d88 100644 +--- a/include/linux/oprofile.h ++++ b/include/linux/oprofile.h +@@ -139,9 +139,9 @@ int oprofilefs_create_ulong(struct super_block * sb, struct dentry * root, + int oprofilefs_create_ro_ulong(struct super_block * sb, struct dentry * root, + char const * name, ulong * val); + +-/** Create a file for read-only access to an atomic_t. */ ++/** Create a file for read-only access to an atomic_unchecked_t. */ + int oprofilefs_create_ro_atomic(struct super_block * sb, struct dentry * root, +- char const * name, atomic_t * val); ++ char const * name, atomic_unchecked_t * val); + + /** create a directory */ + struct dentry * oprofilefs_mkdir(struct super_block * sb, struct dentry * root, +diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h +index ddbb6a9..be1680e 100644 +--- a/include/linux/perf_event.h ++++ b/include/linux/perf_event.h +@@ -879,8 +879,8 @@ struct perf_event { + + enum perf_event_active_state state; + unsigned int attach_state; +- local64_t count; +- atomic64_t child_count; ++ local64_t count; /* PaX: fix it one day */ ++ atomic64_unchecked_t child_count; + + /* + * These are the total time in nanoseconds that the event +@@ -931,8 +931,8 @@ struct perf_event { + * These accumulate total time (in nanoseconds) that children + * events have been enabled and running, respectively. + */ +- atomic64_t child_total_time_enabled; +- atomic64_t child_total_time_running; ++ atomic64_unchecked_t child_total_time_enabled; ++ atomic64_unchecked_t child_total_time_running; + + /* + * Protect attach/detach and child_list: +diff --git a/include/linux/personality.h b/include/linux/personality.h +index 8fc7dd1a..c19d89e 100644 +--- a/include/linux/personality.h ++++ b/include/linux/personality.h +@@ -44,6 +44,7 @@ enum { + #define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC | \ + ADDR_NO_RANDOMIZE | \ + ADDR_COMPAT_LAYOUT | \ ++ ADDR_LIMIT_3GB | \ + MMAP_PAGE_ZERO) + + /* +diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h +index e1ac1ce..0675fed 100644 +--- a/include/linux/pipe_fs_i.h ++++ b/include/linux/pipe_fs_i.h +@@ -45,9 +45,9 @@ struct pipe_buffer { + struct pipe_inode_info { + wait_queue_head_t wait; + unsigned int nrbufs, curbuf, buffers; +- unsigned int readers; +- unsigned int writers; +- unsigned int waiting_writers; ++ atomic_t readers; ++ atomic_t writers; ++ atomic_t waiting_writers; + unsigned int r_counter; + unsigned int w_counter; + struct page *tmp_page; +diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h +index 609daae..5392427 100644 +--- a/include/linux/pm_runtime.h ++++ b/include/linux/pm_runtime.h +@@ -97,7 +97,7 @@ static inline bool pm_runtime_callbacks_present(struct device *dev) + + static inline void pm_runtime_mark_last_busy(struct device *dev) + { +- ACCESS_ONCE(dev->power.last_busy) = jiffies; ++ ACCESS_ONCE_RW(dev->power.last_busy) = jiffies; + } + + #else /* !CONFIG_PM_RUNTIME */ +diff --git a/include/linux/poison.h b/include/linux/poison.h +index 2110a81..13a11bb 100644 +--- a/include/linux/poison.h ++++ b/include/linux/poison.h +@@ -19,8 +19,8 @@ + * under normal circumstances, used to verify that nobody uses + * non-initialized list entries. + */ +-#define LIST_POISON1 ((void *) 0x00100100 + POISON_POINTER_DELTA) +-#define LIST_POISON2 ((void *) 0x00200200 + POISON_POINTER_DELTA) ++#define LIST_POISON1 ((void *) (long)0xFFFFFF01) ++#define LIST_POISON2 ((void *) (long)0xFFFFFF02) + + /********** include/linux/timer.h **********/ + /* +diff --git a/include/linux/preempt.h b/include/linux/preempt.h +index 5a710b9..0b0dab9 100644 +--- a/include/linux/preempt.h ++++ b/include/linux/preempt.h +@@ -126,7 +126,7 @@ struct preempt_ops { + void (*sched_in)(struct preempt_notifier *notifier, int cpu); + void (*sched_out)(struct preempt_notifier *notifier, + struct task_struct *next); +-}; ++} __no_const; + + /** + * preempt_notifier - key for installing preemption notifiers +diff --git a/include/linux/printk.h b/include/linux/printk.h +index 0525927..a5388b6 100644 +--- a/include/linux/printk.h ++++ b/include/linux/printk.h +@@ -94,6 +94,8 @@ void early_printk(const char *fmt, ...); + extern int printk_needs_cpu(int cpu); + extern void printk_tick(void); + ++extern int kptr_restrict; ++ + #ifdef CONFIG_PRINTK + asmlinkage __printf(1, 0) + int vprintk(const char *fmt, va_list args); +@@ -117,7 +119,6 @@ extern bool printk_timed_ratelimit(unsigned long *caller_jiffies, + + extern int printk_delay_msec; + extern int dmesg_restrict; +-extern int kptr_restrict; + + void log_buf_kexec_setup(void); + void __init setup_log_buf(int early); +diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h +index 85c5073..51fac8b 100644 +--- a/include/linux/proc_fs.h ++++ b/include/linux/proc_fs.h +@@ -155,6 +155,18 @@ static inline struct proc_dir_entry *proc_create(const char *name, umode_t mode, + return proc_create_data(name, mode, parent, proc_fops, NULL); + } + ++static inline struct proc_dir_entry *proc_create_grsec(const char *name, umode_t mode, ++ struct proc_dir_entry *parent, const struct file_operations *proc_fops) ++{ ++#ifdef CONFIG_GRKERNSEC_PROC_USER ++ return proc_create_data(name, S_IRUSR, parent, proc_fops, NULL); ++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ return proc_create_data(name, S_IRUSR | S_IRGRP, parent, proc_fops, NULL); ++#else ++ return proc_create_data(name, mode, parent, proc_fops, NULL); ++#endif ++} ++ + static inline struct proc_dir_entry *create_proc_read_entry(const char *name, + umode_t mode, struct proc_dir_entry *base, + read_proc_t *read_proc, void * data) +@@ -258,7 +270,7 @@ union proc_op { + int (*proc_show)(struct seq_file *m, + struct pid_namespace *ns, struct pid *pid, + struct task_struct *task); +-}; ++} __no_const; + + struct ctl_table_header; + struct ctl_table; +diff --git a/include/linux/random.h b/include/linux/random.h +index 8f74538..de61694 100644 +--- a/include/linux/random.h ++++ b/include/linux/random.h +@@ -54,6 +54,10 @@ extern void add_input_randomness(unsigned int type, unsigned int code, + unsigned int value); + extern void add_interrupt_randomness(int irq); + ++#ifdef CONFIG_PAX_LATENT_ENTROPY ++extern void transfer_latent_entropy(void); ++#endif ++ + extern void get_random_bytes(void *buf, int nbytes); + void generate_random_uuid(unsigned char uuid_out[16]); + +@@ -69,12 +73,17 @@ void srandom32(u32 seed); + + u32 prandom32(struct rnd_state *); + ++static inline unsigned long pax_get_random_long(void) ++{ ++ return random32() + (sizeof(long) > 4 ? (unsigned long)random32() << 32 : 0); ++} ++ + /* + * Handle minimum values for seeds + */ + static inline u32 __seed(u32 x, u32 m) + { +- return (x < m) ? x + m : x; ++ return (x <= m) ? x + m + 1 : x; + } + + /** +diff --git a/include/linux/reboot.h b/include/linux/reboot.h +index e0879a7..a12f962 100644 +--- a/include/linux/reboot.h ++++ b/include/linux/reboot.h +@@ -52,9 +52,9 @@ extern int unregister_reboot_notifier(struct notifier_block *); + * Architecture-specific implementations of sys_reboot commands. + */ + +-extern void machine_restart(char *cmd); +-extern void machine_halt(void); +-extern void machine_power_off(void); ++extern void machine_restart(char *cmd) __noreturn; ++extern void machine_halt(void) __noreturn; ++extern void machine_power_off(void) __noreturn; + + extern void machine_shutdown(void); + struct pt_regs; +@@ -65,9 +65,9 @@ extern void machine_crash_shutdown(struct pt_regs *); + */ + + extern void kernel_restart_prepare(char *cmd); +-extern void kernel_restart(char *cmd); +-extern void kernel_halt(void); +-extern void kernel_power_off(void); ++extern void kernel_restart(char *cmd) __noreturn; ++extern void kernel_halt(void) __noreturn; ++extern void kernel_power_off(void) __noreturn; + + extern int C_A_D; /* for sysctl */ + void ctrl_alt_del(void); +@@ -81,7 +81,7 @@ extern int orderly_poweroff(bool force); + * Emergency restart, callable from an interrupt handler. + */ + +-extern void emergency_restart(void); ++extern void emergency_restart(void) __noreturn; + #include <asm/emergency-restart.h> + + #endif +diff --git a/include/linux/relay.h b/include/linux/relay.h +index 91cacc3..b55ff74 100644 +--- a/include/linux/relay.h ++++ b/include/linux/relay.h +@@ -160,7 +160,7 @@ struct rchan_callbacks + * The callback should return 0 if successful, negative if not. + */ + int (*remove_buf_file)(struct dentry *dentry); +-}; ++} __no_const; + + /* + * CONFIG_RELAY kernel API, kernel/relay.c +diff --git a/include/linux/rfkill.h b/include/linux/rfkill.h +index 6fdf027..ff72610 100644 +--- a/include/linux/rfkill.h ++++ b/include/linux/rfkill.h +@@ -147,6 +147,7 @@ struct rfkill_ops { + void (*query)(struct rfkill *rfkill, void *data); + int (*set_block)(void *data, bool blocked); + }; ++typedef struct rfkill_ops __no_const rfkill_ops_no_const; + + #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) + /** +diff --git a/include/linux/rio.h b/include/linux/rio.h +index 4d50611..c6858a2 100644 +--- a/include/linux/rio.h ++++ b/include/linux/rio.h +@@ -315,7 +315,7 @@ struct rio_ops { + int mbox, void *buffer, size_t len); + int (*add_inb_buffer)(struct rio_mport *mport, int mbox, void *buf); + void *(*get_inb_message)(struct rio_mport *mport, int mbox); +-}; ++} __no_const; + + #define RIO_RESOURCE_MEM 0x00000100 + #define RIO_RESOURCE_DOORBELL 0x00000200 +diff --git a/include/linux/rmap.h b/include/linux/rmap.h +index fd07c45..4676b8e 100644 +--- a/include/linux/rmap.h ++++ b/include/linux/rmap.h +@@ -119,9 +119,9 @@ static inline void anon_vma_unlock(struct anon_vma *anon_vma) + void anon_vma_init(void); /* create anon_vma_cachep */ + int anon_vma_prepare(struct vm_area_struct *); + void unlink_anon_vmas(struct vm_area_struct *); +-int anon_vma_clone(struct vm_area_struct *, struct vm_area_struct *); ++int anon_vma_clone(struct vm_area_struct *, const struct vm_area_struct *); + void anon_vma_moveto_tail(struct vm_area_struct *); +-int anon_vma_fork(struct vm_area_struct *, struct vm_area_struct *); ++int anon_vma_fork(struct vm_area_struct *, const struct vm_area_struct *); + + static inline void anon_vma_merge(struct vm_area_struct *vma, + struct vm_area_struct *next) +diff --git a/include/linux/sched.h b/include/linux/sched.h +index 7b06169..c92adbe 100644 +--- a/include/linux/sched.h ++++ b/include/linux/sched.h +@@ -100,6 +100,7 @@ struct bio_list; + struct fs_struct; + struct perf_event_context; + struct blk_plug; ++struct linux_binprm; + + /* + * List of flags we want to share for kernel threads, +@@ -382,10 +383,13 @@ struct user_namespace; + #define DEFAULT_MAX_MAP_COUNT (USHRT_MAX - MAPCOUNT_ELF_CORE_MARGIN) + + extern int sysctl_max_map_count; ++extern unsigned long sysctl_heap_stack_gap; + + #include <linux/aio.h> + + #ifdef CONFIG_MMU ++extern bool check_heap_stack_gap(const struct vm_area_struct *vma, unsigned long addr, unsigned long len); ++extern unsigned long skip_heap_stack_gap(const struct vm_area_struct *vma, unsigned long len); + extern void arch_pick_mmap_layout(struct mm_struct *mm); + extern unsigned long + arch_get_unmapped_area(struct file *, unsigned long, unsigned long, +@@ -643,6 +647,17 @@ struct signal_struct { + #ifdef CONFIG_TASKSTATS + struct taskstats *stats; + #endif ++ ++#ifdef CONFIG_GRKERNSEC ++ u32 curr_ip; ++ u32 saved_ip; ++ u32 gr_saddr; ++ u32 gr_daddr; ++ u16 gr_sport; ++ u16 gr_dport; ++ u8 used_accept:1; ++#endif ++ + #ifdef CONFIG_AUDIT + unsigned audit_tty; + struct tty_audit_buf *tty_audit_buf; +@@ -726,6 +741,11 @@ struct user_struct { + struct key *session_keyring; /* UID's default session keyring */ + #endif + ++#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT) || defined(CONFIG_GRKERNSEC_BRUTE) ++ unsigned int banned; ++ unsigned long ban_expires; ++#endif ++ + /* Hash table maintenance information */ + struct hlist_node uidhash_node; + uid_t uid; +@@ -1386,8 +1406,8 @@ struct task_struct { + struct list_head thread_group; + + struct completion *vfork_done; /* for vfork() */ +- int __user *set_child_tid; /* CLONE_CHILD_SETTID */ +- int __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */ ++ pid_t __user *set_child_tid; /* CLONE_CHILD_SETTID */ ++ pid_t __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */ + + cputime_t utime, stime, utimescaled, stimescaled; + cputime_t gtime; +@@ -1403,13 +1423,6 @@ struct task_struct { + struct task_cputime cputime_expires; + struct list_head cpu_timers[3]; + +-/* process credentials */ +- const struct cred __rcu *real_cred; /* objective and real subjective task +- * credentials (COW) */ +- const struct cred __rcu *cred; /* effective (overridable) subjective task +- * credentials (COW) */ +- struct cred *replacement_session_keyring; /* for KEYCTL_SESSION_TO_PARENT */ +- + char comm[TASK_COMM_LEN]; /* executable name excluding path + - access with [gs]et_task_comm (which lock + it with task_lock()) +@@ -1426,8 +1439,16 @@ struct task_struct { + #endif + /* CPU-specific state of this task */ + struct thread_struct thread; ++/* thread_info moved to task_struct */ ++#ifdef CONFIG_X86 ++ struct thread_info tinfo; ++#endif + /* filesystem information */ + struct fs_struct *fs; ++ ++ const struct cred __rcu *cred; /* effective (overridable) subjective task ++ * credentials (COW) */ ++ + /* open file information */ + struct files_struct *files; + /* namespaces */ +@@ -1469,6 +1490,11 @@ struct task_struct { + struct rt_mutex_waiter *pi_blocked_on; + #endif + ++/* process credentials */ ++ const struct cred __rcu *real_cred; /* objective and real subjective task ++ * credentials (COW) */ ++ struct cred *replacement_session_keyring; /* for KEYCTL_SESSION_TO_PARENT */ ++ + #ifdef CONFIG_DEBUG_MUTEXES + /* mutex deadlock detection */ + struct mutex_waiter *blocked_on; +@@ -1585,6 +1611,27 @@ struct task_struct { + unsigned long default_timer_slack_ns; + + struct list_head *scm_work_list; ++ ++#ifdef CONFIG_GRKERNSEC ++ /* grsecurity */ ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ u64 exec_id; ++#endif ++#ifdef CONFIG_GRKERNSEC_SETXID ++ const struct cred *delayed_cred; ++#endif ++ struct dentry *gr_chroot_dentry; ++ struct acl_subject_label *acl; ++ struct acl_role_label *role; ++ struct file *exec_file; ++ u16 acl_role_id; ++ /* is this the task that authenticated to the special role */ ++ u8 acl_sp_role; ++ u8 is_writable; ++ u8 brute; ++ u8 gr_is_chrooted; ++#endif ++ + #ifdef CONFIG_FUNCTION_GRAPH_TRACER + /* Index of current stored address in ret_stack */ + int curr_ret_stack; +@@ -1619,6 +1666,51 @@ struct task_struct { + #endif + }; + ++#define MF_PAX_PAGEEXEC 0x01000000 /* Paging based non-executable pages */ ++#define MF_PAX_EMUTRAMP 0x02000000 /* Emulate trampolines */ ++#define MF_PAX_MPROTECT 0x04000000 /* Restrict mprotect() */ ++#define MF_PAX_RANDMMAP 0x08000000 /* Randomize mmap() base */ ++/*#define MF_PAX_RANDEXEC 0x10000000*/ /* Randomize ET_EXEC base */ ++#define MF_PAX_SEGMEXEC 0x20000000 /* Segmentation based non-executable pages */ ++ ++#ifdef CONFIG_PAX_SOFTMODE ++extern int pax_softmode; ++#endif ++ ++extern int pax_check_flags(unsigned long *); ++ ++/* if tsk != current then task_lock must be held on it */ ++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR) ++static inline unsigned long pax_get_flags(struct task_struct *tsk) ++{ ++ if (likely(tsk->mm)) ++ return tsk->mm->pax_flags; ++ else ++ return 0UL; ++} ++ ++/* if tsk != current then task_lock must be held on it */ ++static inline long pax_set_flags(struct task_struct *tsk, unsigned long flags) ++{ ++ if (likely(tsk->mm)) { ++ tsk->mm->pax_flags = flags; ++ return 0; ++ } ++ return -EINVAL; ++} ++#endif ++ ++#ifdef CONFIG_PAX_HAVE_ACL_FLAGS ++extern void pax_set_initial_flags(struct linux_binprm *bprm); ++#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS) ++extern void (*pax_set_initial_flags_func)(struct linux_binprm *bprm); ++#endif ++ ++extern void pax_report_fault(struct pt_regs *regs, void *pc, void *sp); ++extern void pax_report_insns(struct pt_regs *regs, void *pc, void *sp); ++extern void pax_report_refcount_overflow(struct pt_regs *regs); ++extern void check_object_size(const void *ptr, unsigned long n, bool to); ++ + /* Future-safe accessor for struct task_struct's cpus_allowed. */ + #define tsk_cpus_allowed(tsk) (&(tsk)->cpus_allowed) + +@@ -2146,7 +2238,9 @@ void yield(void); + extern struct exec_domain default_exec_domain; + + union thread_union { ++#ifndef CONFIG_X86 + struct thread_info thread_info; ++#endif + unsigned long stack[THREAD_SIZE/sizeof(long)]; + }; + +@@ -2179,6 +2273,7 @@ extern struct pid_namespace init_pid_ns; + */ + + extern struct task_struct *find_task_by_vpid(pid_t nr); ++extern struct task_struct *find_task_by_vpid_unrestricted(pid_t nr); + extern struct task_struct *find_task_by_pid_ns(pid_t nr, + struct pid_namespace *ns); + +@@ -2322,7 +2417,7 @@ extern void __cleanup_sighand(struct sighand_struct *); + extern void exit_itimers(struct signal_struct *); + extern void flush_itimer_signals(void); + +-extern void do_group_exit(int); ++extern __noreturn void do_group_exit(int); + + extern void daemonize(const char *, ...); + extern int allow_signal(int); +@@ -2523,9 +2618,9 @@ static inline unsigned long *end_of_stack(struct task_struct *p) + + #endif + +-static inline int object_is_on_stack(void *obj) ++static inline int object_starts_on_stack(void *obj) + { +- void *stack = task_stack_page(current); ++ const void *stack = task_stack_page(current); + + return (obj >= stack) && (obj < (stack + THREAD_SIZE)); + } +diff --git a/include/linux/screen_info.h b/include/linux/screen_info.h +index 899fbb4..1cb4138 100644 +--- a/include/linux/screen_info.h ++++ b/include/linux/screen_info.h +@@ -43,7 +43,8 @@ struct screen_info { + __u16 pages; /* 0x32 */ + __u16 vesa_attributes; /* 0x34 */ + __u32 capabilities; /* 0x36 */ +- __u8 _reserved[6]; /* 0x3a */ ++ __u16 vesapm_size; /* 0x3a */ ++ __u8 _reserved[4]; /* 0x3c */ + } __attribute__((packed)); + + #define VIDEO_TYPE_MDA 0x10 /* Monochrome Text Display */ +diff --git a/include/linux/security.h b/include/linux/security.h +index 673afbb..2b7454b 100644 +--- a/include/linux/security.h ++++ b/include/linux/security.h +@@ -26,6 +26,7 @@ + #include <linux/capability.h> + #include <linux/slab.h> + #include <linux/err.h> ++#include <linux/grsecurity.h> + + struct linux_binprm; + struct cred; +diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h +index fc61854..d7c490b 100644 +--- a/include/linux/seq_file.h ++++ b/include/linux/seq_file.h +@@ -25,6 +25,9 @@ struct seq_file { + struct mutex lock; + const struct seq_operations *op; + int poll_event; ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ u64 exec_id; ++#endif + void *private; + }; + +@@ -34,6 +37,7 @@ struct seq_operations { + void * (*next) (struct seq_file *m, void *v, loff_t *pos); + int (*show) (struct seq_file *m, void *v); + }; ++typedef struct seq_operations __no_const seq_operations_no_const; + + #define SEQ_SKIP 1 + +diff --git a/include/linux/shm.h b/include/linux/shm.h +index 92808b8..c28cac4 100644 +--- a/include/linux/shm.h ++++ b/include/linux/shm.h +@@ -98,6 +98,10 @@ struct shmid_kernel /* private to the kernel */ + + /* The task created the shm object. NULL if the task is dead. */ + struct task_struct *shm_creator; ++#ifdef CONFIG_GRKERNSEC ++ time_t shm_createtime; ++ pid_t shm_lapid; ++#endif + }; + + /* shm_mode upper byte flags */ +diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h +index c1bae8d..2dbcd31 100644 +--- a/include/linux/skbuff.h ++++ b/include/linux/skbuff.h +@@ -663,7 +663,7 @@ static inline struct skb_shared_hwtstamps *skb_hwtstamps(struct sk_buff *skb) + */ + static inline int skb_queue_empty(const struct sk_buff_head *list) + { +- return list->next == (struct sk_buff *)list; ++ return list->next == (const struct sk_buff *)list; + } + + /** +@@ -676,7 +676,7 @@ static inline int skb_queue_empty(const struct sk_buff_head *list) + static inline bool skb_queue_is_last(const struct sk_buff_head *list, + const struct sk_buff *skb) + { +- return skb->next == (struct sk_buff *)list; ++ return skb->next == (const struct sk_buff *)list; + } + + /** +@@ -689,7 +689,7 @@ static inline bool skb_queue_is_last(const struct sk_buff_head *list, + static inline bool skb_queue_is_first(const struct sk_buff_head *list, + const struct sk_buff *skb) + { +- return skb->prev == (struct sk_buff *)list; ++ return skb->prev == (const struct sk_buff *)list; + } + + /** +@@ -1584,7 +1584,7 @@ static inline int pskb_network_may_pull(struct sk_buff *skb, unsigned int len) + * NET_IP_ALIGN(2) + ethernet_header(14) + IP_header(20/40) + ports(8) + */ + #ifndef NET_SKB_PAD +-#define NET_SKB_PAD max(32, L1_CACHE_BYTES) ++#define NET_SKB_PAD max(_AC(32,UL), L1_CACHE_BYTES) + #endif + + extern int ___pskb_trim(struct sk_buff *skb, unsigned int len); +diff --git a/include/linux/slab.h b/include/linux/slab.h +index a595dce..dfab0d2 100644 +--- a/include/linux/slab.h ++++ b/include/linux/slab.h +@@ -11,12 +11,20 @@ + + #include <linux/gfp.h> + #include <linux/types.h> ++#include <linux/err.h> + + /* + * Flags to pass to kmem_cache_create(). + * The ones marked DEBUG are only valid if CONFIG_SLAB_DEBUG is set. + */ + #define SLAB_DEBUG_FREE 0x00000100UL /* DEBUG: Perform (expensive) checks on free */ ++ ++#ifdef CONFIG_PAX_USERCOPY_SLABS ++#define SLAB_USERCOPY 0x00000200UL /* PaX: Allow copying objs to/from userland */ ++#else ++#define SLAB_USERCOPY 0x00000000UL ++#endif ++ + #define SLAB_RED_ZONE 0x00000400UL /* DEBUG: Red zone objs in a cache */ + #define SLAB_POISON 0x00000800UL /* DEBUG: Poison objects */ + #define SLAB_HWCACHE_ALIGN 0x00002000UL /* Align objs on cache lines */ +@@ -87,10 +95,13 @@ + * ZERO_SIZE_PTR can be passed to kfree though in the same way that NULL can. + * Both make kfree a no-op. + */ +-#define ZERO_SIZE_PTR ((void *)16) ++#define ZERO_SIZE_PTR \ ++({ \ ++ BUILD_BUG_ON(!(MAX_ERRNO & ~PAGE_MASK));\ ++ (void *)(-MAX_ERRNO-1L); \ ++}) + +-#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) <= \ +- (unsigned long)ZERO_SIZE_PTR) ++#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) - 1 >= (unsigned long)ZERO_SIZE_PTR - 1) + + /* + * struct kmem_cache related prototypes +@@ -161,6 +172,8 @@ void * __must_check krealloc(const void *, size_t, gfp_t); + void kfree(const void *); + void kzfree(const void *); + size_t ksize(const void *); ++const char *check_heap_object(const void *ptr, unsigned long n, bool to); ++bool is_usercopy_object(const void *ptr); + + /* + * Allocator specific definitions. These are mainly used to establish optimized +@@ -240,6 +253,7 @@ size_t ksize(const void *); + * for general use, and so are not documented here. For a full list of + * potential flags, always refer to linux/gfp.h. + */ ++static void *kmalloc_array(size_t n, size_t size, gfp_t flags) __size_overflow(1, 2); + static inline void *kmalloc_array(size_t n, size_t size, gfp_t flags) + { + if (size != 0 && n > ULONG_MAX / size) +@@ -298,7 +312,7 @@ static inline void *kmem_cache_alloc_node(struct kmem_cache *cachep, + */ + #if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB) || \ + (defined(CONFIG_SLAB) && defined(CONFIG_TRACING)) +-extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long); ++extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long) __size_overflow(1); + #define kmalloc_track_caller(size, flags) \ + __kmalloc_track_caller(size, flags, _RET_IP_) + #else +@@ -317,7 +331,7 @@ extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long); + */ + #if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB) || \ + (defined(CONFIG_SLAB) && defined(CONFIG_TRACING)) +-extern void *__kmalloc_node_track_caller(size_t, gfp_t, int, unsigned long); ++extern void *__kmalloc_node_track_caller(size_t, gfp_t, int, unsigned long) __size_overflow(1); + #define kmalloc_node_track_caller(size, flags, node) \ + __kmalloc_node_track_caller(size, flags, node, \ + _RET_IP_) +diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h +index fbd1117..0a3d314 100644 +--- a/include/linux/slab_def.h ++++ b/include/linux/slab_def.h +@@ -66,10 +66,10 @@ struct kmem_cache { + unsigned long node_allocs; + unsigned long node_frees; + unsigned long node_overflow; +- atomic_t allochit; +- atomic_t allocmiss; +- atomic_t freehit; +- atomic_t freemiss; ++ atomic_unchecked_t allochit; ++ atomic_unchecked_t allocmiss; ++ atomic_unchecked_t freehit; ++ atomic_unchecked_t freemiss; + + /* + * If debugging is enabled, then the allocator can add additional +@@ -103,11 +103,16 @@ struct cache_sizes { + #ifdef CONFIG_ZONE_DMA + struct kmem_cache *cs_dmacachep; + #endif ++ ++#ifdef CONFIG_PAX_USERCOPY_SLABS ++ struct kmem_cache *cs_usercopycachep; ++#endif ++ + }; + extern struct cache_sizes malloc_sizes[]; + + void *kmem_cache_alloc(struct kmem_cache *, gfp_t); +-void *__kmalloc(size_t size, gfp_t flags); ++void *__kmalloc(size_t size, gfp_t flags) __size_overflow(1); + + #ifdef CONFIG_TRACING + extern void *kmem_cache_alloc_trace(size_t size, +@@ -150,6 +155,13 @@ found: + cachep = malloc_sizes[i].cs_dmacachep; + else + #endif ++ ++#ifdef CONFIG_PAX_USERCOPY_SLABS ++ if (flags & GFP_USERCOPY) ++ cachep = malloc_sizes[i].cs_usercopycachep; ++ else ++#endif ++ + cachep = malloc_sizes[i].cs_cachep; + + ret = kmem_cache_alloc_trace(size, cachep, flags); +@@ -160,7 +172,7 @@ found: + } + + #ifdef CONFIG_NUMA +-extern void *__kmalloc_node(size_t size, gfp_t flags, int node); ++extern void *__kmalloc_node(size_t size, gfp_t flags, int node) __size_overflow(1); + extern void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node); + + #ifdef CONFIG_TRACING +@@ -203,6 +215,13 @@ found: + cachep = malloc_sizes[i].cs_dmacachep; + else + #endif ++ ++#ifdef CONFIG_PAX_USERCOPY_SLABS ++ if (flags & GFP_USERCOPY) ++ cachep = malloc_sizes[i].cs_usercopycachep; ++ else ++#endif ++ + cachep = malloc_sizes[i].cs_cachep; + + return kmem_cache_alloc_node_trace(size, cachep, flags, node); +diff --git a/include/linux/slob_def.h b/include/linux/slob_def.h +index 0ec00b3..39cb7fc 100644 +--- a/include/linux/slob_def.h ++++ b/include/linux/slob_def.h +@@ -9,7 +9,7 @@ static __always_inline void *kmem_cache_alloc(struct kmem_cache *cachep, + return kmem_cache_alloc_node(cachep, flags, -1); + } + +-void *__kmalloc_node(size_t size, gfp_t flags, int node); ++void *__kmalloc_node(size_t size, gfp_t flags, int node) __size_overflow(1); + + static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node) + { +@@ -29,6 +29,7 @@ static __always_inline void *kmalloc(size_t size, gfp_t flags) + return __kmalloc_node(size, flags, -1); + } + ++static __always_inline void *__kmalloc(size_t size, gfp_t flags) __size_overflow(1); + static __always_inline void *__kmalloc(size_t size, gfp_t flags) + { + return kmalloc(size, flags); +diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h +index c2f8c8b..be9e036 100644 +--- a/include/linux/slub_def.h ++++ b/include/linux/slub_def.h +@@ -92,7 +92,7 @@ struct kmem_cache { + struct kmem_cache_order_objects max; + struct kmem_cache_order_objects min; + gfp_t allocflags; /* gfp flags to use on each alloc */ +- int refcount; /* Refcount for slab cache destroy */ ++ atomic_t refcount; /* Refcount for slab cache destroy */ + void (*ctor)(void *); + int inuse; /* Offset to metadata */ + int align; /* Alignment */ +@@ -153,6 +153,7 @@ extern struct kmem_cache *kmalloc_caches[SLUB_PAGE_SHIFT]; + * Sorry that the following has to be that ugly but some versions of GCC + * have trouble with constant propagation and loops. + */ ++static __always_inline int kmalloc_index(size_t size) __size_overflow(1); + static __always_inline int kmalloc_index(size_t size) + { + if (!size) +@@ -218,7 +219,7 @@ static __always_inline struct kmem_cache *kmalloc_slab(size_t size) + } + + void *kmem_cache_alloc(struct kmem_cache *, gfp_t); +-void *__kmalloc(size_t size, gfp_t flags); ++void *__kmalloc(size_t size, gfp_t flags) __alloc_size(1) __size_overflow(1); + + static __always_inline void * + kmalloc_order(size_t size, gfp_t flags, unsigned int order) +@@ -259,6 +260,7 @@ kmalloc_order_trace(size_t size, gfp_t flags, unsigned int order) + } + #endif + ++static __always_inline void *kmalloc_large(size_t size, gfp_t flags) __size_overflow(1); + static __always_inline void *kmalloc_large(size_t size, gfp_t flags) + { + unsigned int order = get_order(size); +@@ -284,7 +286,7 @@ static __always_inline void *kmalloc(size_t size, gfp_t flags) + } + + #ifdef CONFIG_NUMA +-void *__kmalloc_node(size_t size, gfp_t flags, int node); ++void *__kmalloc_node(size_t size, gfp_t flags, int node) __size_overflow(1); + void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node); + + #ifdef CONFIG_TRACING +diff --git a/include/linux/sonet.h b/include/linux/sonet.h +index de8832d..0147b46 100644 +--- a/include/linux/sonet.h ++++ b/include/linux/sonet.h +@@ -61,7 +61,7 @@ struct sonet_stats { + #include <linux/atomic.h> + + struct k_sonet_stats { +-#define __HANDLE_ITEM(i) atomic_t i ++#define __HANDLE_ITEM(i) atomic_unchecked_t i + __SONET_ITEMS + #undef __HANDLE_ITEM + }; +diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h +index 523547e..2cb7140 100644 +--- a/include/linux/sunrpc/clnt.h ++++ b/include/linux/sunrpc/clnt.h +@@ -174,9 +174,9 @@ static inline unsigned short rpc_get_port(const struct sockaddr *sap) + { + switch (sap->sa_family) { + case AF_INET: +- return ntohs(((struct sockaddr_in *)sap)->sin_port); ++ return ntohs(((const struct sockaddr_in *)sap)->sin_port); + case AF_INET6: +- return ntohs(((struct sockaddr_in6 *)sap)->sin6_port); ++ return ntohs(((const struct sockaddr_in6 *)sap)->sin6_port); + } + return 0; + } +@@ -209,7 +209,7 @@ static inline bool __rpc_cmp_addr4(const struct sockaddr *sap1, + static inline bool __rpc_copy_addr4(struct sockaddr *dst, + const struct sockaddr *src) + { +- const struct sockaddr_in *ssin = (struct sockaddr_in *) src; ++ const struct sockaddr_in *ssin = (const struct sockaddr_in *) src; + struct sockaddr_in *dsin = (struct sockaddr_in *) dst; + + dsin->sin_family = ssin->sin_family; +@@ -312,7 +312,7 @@ static inline u32 rpc_get_scope_id(const struct sockaddr *sa) + if (sa->sa_family != AF_INET6) + return 0; + +- return ((struct sockaddr_in6 *) sa)->sin6_scope_id; ++ return ((const struct sockaddr_in6 *) sa)->sin6_scope_id; + } + + #endif /* __KERNEL__ */ +diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h +index dc0c3cc..8503fb6 100644 +--- a/include/linux/sunrpc/sched.h ++++ b/include/linux/sunrpc/sched.h +@@ -106,6 +106,7 @@ struct rpc_call_ops { + void (*rpc_count_stats)(struct rpc_task *, void *); + void (*rpc_release)(void *); + }; ++typedef struct rpc_call_ops __no_const rpc_call_ops_no_const; + + struct rpc_task_setup { + struct rpc_task *task; +diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h +index 0b8e3e6..33e0a01 100644 +--- a/include/linux/sunrpc/svc_rdma.h ++++ b/include/linux/sunrpc/svc_rdma.h +@@ -53,15 +53,15 @@ extern unsigned int svcrdma_ord; + extern unsigned int svcrdma_max_requests; + extern unsigned int svcrdma_max_req_size; + +-extern atomic_t rdma_stat_recv; +-extern atomic_t rdma_stat_read; +-extern atomic_t rdma_stat_write; +-extern atomic_t rdma_stat_sq_starve; +-extern atomic_t rdma_stat_rq_starve; +-extern atomic_t rdma_stat_rq_poll; +-extern atomic_t rdma_stat_rq_prod; +-extern atomic_t rdma_stat_sq_poll; +-extern atomic_t rdma_stat_sq_prod; ++extern atomic_unchecked_t rdma_stat_recv; ++extern atomic_unchecked_t rdma_stat_read; ++extern atomic_unchecked_t rdma_stat_write; ++extern atomic_unchecked_t rdma_stat_sq_starve; ++extern atomic_unchecked_t rdma_stat_rq_starve; ++extern atomic_unchecked_t rdma_stat_rq_poll; ++extern atomic_unchecked_t rdma_stat_rq_prod; ++extern atomic_unchecked_t rdma_stat_sq_poll; ++extern atomic_unchecked_t rdma_stat_sq_prod; + + #define RPCRDMA_VERSION 1 + +diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h +index c34b4c8..a65b67d 100644 +--- a/include/linux/sysctl.h ++++ b/include/linux/sysctl.h +@@ -155,7 +155,11 @@ enum + KERN_PANIC_ON_NMI=76, /* int: whether we will panic on an unrecovered */ + }; + +- ++#ifdef CONFIG_PAX_SOFTMODE ++enum { ++ PAX_SOFTMODE=1 /* PaX: disable/enable soft mode */ ++}; ++#endif + + /* CTL_VM names: */ + enum +@@ -948,6 +952,8 @@ typedef int proc_handler (struct ctl_table *ctl, int write, + + extern int proc_dostring(struct ctl_table *, int, + void __user *, size_t *, loff_t *); ++extern int proc_dostring_modpriv(struct ctl_table *, int, ++ void __user *, size_t *, loff_t *); + extern int proc_dointvec(struct ctl_table *, int, + void __user *, size_t *, loff_t *); + extern int proc_dointvec_minmax(struct ctl_table *, int, +diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h +index ff7dc08..893e1bd 100644 +--- a/include/linux/tty_ldisc.h ++++ b/include/linux/tty_ldisc.h +@@ -148,7 +148,7 @@ struct tty_ldisc_ops { + + struct module *owner; + +- int refcount; ++ atomic_t refcount; + }; + + struct tty_ldisc { +diff --git a/include/linux/types.h b/include/linux/types.h +index 7f480db..175c256 100644 +--- a/include/linux/types.h ++++ b/include/linux/types.h +@@ -220,10 +220,26 @@ typedef struct { + int counter; + } atomic_t; + ++#ifdef CONFIG_PAX_REFCOUNT ++typedef struct { ++ int counter; ++} atomic_unchecked_t; ++#else ++typedef atomic_t atomic_unchecked_t; ++#endif ++ + #ifdef CONFIG_64BIT + typedef struct { + long counter; + } atomic64_t; ++ ++#ifdef CONFIG_PAX_REFCOUNT ++typedef struct { ++ long counter; ++} atomic64_unchecked_t; ++#else ++typedef atomic64_t atomic64_unchecked_t; ++#endif + #endif + + struct list_head { +diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h +index 5ca0951..ab496a5 100644 +--- a/include/linux/uaccess.h ++++ b/include/linux/uaccess.h +@@ -76,11 +76,11 @@ static inline unsigned long __copy_from_user_nocache(void *to, + long ret; \ + mm_segment_t old_fs = get_fs(); \ + \ +- set_fs(KERNEL_DS); \ + pagefault_disable(); \ +- ret = __copy_from_user_inatomic(&(retval), (__force typeof(retval) __user *)(addr), sizeof(retval)); \ +- pagefault_enable(); \ ++ set_fs(KERNEL_DS); \ ++ ret = __copy_from_user_inatomic(&(retval), (typeof(retval) __force_user *)(addr), sizeof(retval)); \ + set_fs(old_fs); \ ++ pagefault_enable(); \ + ret; \ + }) + +diff --git a/include/linux/unaligned/access_ok.h b/include/linux/unaligned/access_ok.h +index 99c1b4d..bb94261 100644 +--- a/include/linux/unaligned/access_ok.h ++++ b/include/linux/unaligned/access_ok.h +@@ -6,32 +6,32 @@ + + static inline u16 get_unaligned_le16(const void *p) + { +- return le16_to_cpup((__le16 *)p); ++ return le16_to_cpup((const __le16 *)p); + } + + static inline u32 get_unaligned_le32(const void *p) + { +- return le32_to_cpup((__le32 *)p); ++ return le32_to_cpup((const __le32 *)p); + } + + static inline u64 get_unaligned_le64(const void *p) + { +- return le64_to_cpup((__le64 *)p); ++ return le64_to_cpup((const __le64 *)p); + } + + static inline u16 get_unaligned_be16(const void *p) + { +- return be16_to_cpup((__be16 *)p); ++ return be16_to_cpup((const __be16 *)p); + } + + static inline u32 get_unaligned_be32(const void *p) + { +- return be32_to_cpup((__be32 *)p); ++ return be32_to_cpup((const __be32 *)p); + } + + static inline u64 get_unaligned_be64(const void *p) + { +- return be64_to_cpup((__be64 *)p); ++ return be64_to_cpup((const __be64 *)p); + } + + static inline void put_unaligned_le16(u16 val, void *p) +diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h +index 547e59c..db6ad19 100644 +--- a/include/linux/usb/renesas_usbhs.h ++++ b/include/linux/usb/renesas_usbhs.h +@@ -39,7 +39,7 @@ enum { + */ + struct renesas_usbhs_driver_callback { + int (*notify_hotplug)(struct platform_device *pdev); +-}; ++} __no_const; + + /* + * callback functions for platform +@@ -97,7 +97,7 @@ struct renesas_usbhs_platform_callback { + * VBUS control is needed for Host + */ + int (*set_vbus)(struct platform_device *pdev, int enable); +-}; ++} __no_const; + + /* + * parameters for renesas usbhs +diff --git a/include/linux/vermagic.h b/include/linux/vermagic.h +index 6f8fbcf..8259001 100644 +--- a/include/linux/vermagic.h ++++ b/include/linux/vermagic.h +@@ -25,9 +25,35 @@ + #define MODULE_ARCH_VERMAGIC "" + #endif + ++#ifdef CONFIG_PAX_REFCOUNT ++#define MODULE_PAX_REFCOUNT "REFCOUNT " ++#else ++#define MODULE_PAX_REFCOUNT "" ++#endif ++ ++#ifdef CONSTIFY_PLUGIN ++#define MODULE_CONSTIFY_PLUGIN "CONSTIFY_PLUGIN " ++#else ++#define MODULE_CONSTIFY_PLUGIN "" ++#endif ++ ++#ifdef STACKLEAK_PLUGIN ++#define MODULE_STACKLEAK_PLUGIN "STACKLEAK_PLUGIN " ++#else ++#define MODULE_STACKLEAK_PLUGIN "" ++#endif ++ ++#ifdef CONFIG_GRKERNSEC ++#define MODULE_GRSEC "GRSEC " ++#else ++#define MODULE_GRSEC "" ++#endif ++ + #define VERMAGIC_STRING \ + UTS_RELEASE " " \ + MODULE_VERMAGIC_SMP MODULE_VERMAGIC_PREEMPT \ + MODULE_VERMAGIC_MODULE_UNLOAD MODULE_VERMAGIC_MODVERSIONS \ +- MODULE_ARCH_VERMAGIC ++ MODULE_ARCH_VERMAGIC \ ++ MODULE_PAX_REFCOUNT MODULE_CONSTIFY_PLUGIN MODULE_STACKLEAK_PLUGIN \ ++ MODULE_GRSEC + +diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h +index dcdfc2b..ec79ab5 100644 +--- a/include/linux/vmalloc.h ++++ b/include/linux/vmalloc.h +@@ -14,6 +14,11 @@ struct vm_area_struct; /* vma defining user mapping in mm_types.h */ + #define VM_USERMAP 0x00000008 /* suitable for remap_vmalloc_range */ + #define VM_VPAGES 0x00000010 /* buffer for pages was vmalloc'ed */ + #define VM_UNLIST 0x00000020 /* vm_struct is not listed in vmlist */ ++ ++#if defined(CONFIG_MODULES) && defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC) ++#define VM_KERNEXEC 0x00000040 /* allocate from executable kernel memory range */ ++#endif ++ + /* bits [20..32] reserved for arch specific ioremap internals */ + + /* +@@ -62,7 +67,7 @@ extern void *vmalloc_32_user(unsigned long size); + extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot); + extern void *__vmalloc_node_range(unsigned long size, unsigned long align, + unsigned long start, unsigned long end, gfp_t gfp_mask, +- pgprot_t prot, int node, void *caller); ++ pgprot_t prot, int node, void *caller) __size_overflow(1); + extern void vfree(const void *addr); + + extern void *vmap(struct page **pages, unsigned int count, +@@ -123,8 +128,8 @@ extern struct vm_struct *alloc_vm_area(size_t size, pte_t **ptes); + extern void free_vm_area(struct vm_struct *area); + + /* for /dev/kmem */ +-extern long vread(char *buf, char *addr, unsigned long count); +-extern long vwrite(char *buf, char *addr, unsigned long count); ++extern long vread(char *buf, char *addr, unsigned long count) __size_overflow(3); ++extern long vwrite(char *buf, char *addr, unsigned long count) __size_overflow(3); + + /* + * Internals. Dont't use.. +diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h +index 65efb92..137adbb 100644 +--- a/include/linux/vmstat.h ++++ b/include/linux/vmstat.h +@@ -87,18 +87,18 @@ static inline void vm_events_fold_cpu(int cpu) + /* + * Zone based page accounting with per cpu differentials. + */ +-extern atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS]; ++extern atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS]; + + static inline void zone_page_state_add(long x, struct zone *zone, + enum zone_stat_item item) + { +- atomic_long_add(x, &zone->vm_stat[item]); +- atomic_long_add(x, &vm_stat[item]); ++ atomic_long_add_unchecked(x, &zone->vm_stat[item]); ++ atomic_long_add_unchecked(x, &vm_stat[item]); + } + + static inline unsigned long global_page_state(enum zone_stat_item item) + { +- long x = atomic_long_read(&vm_stat[item]); ++ long x = atomic_long_read_unchecked(&vm_stat[item]); + #ifdef CONFIG_SMP + if (x < 0) + x = 0; +@@ -109,7 +109,7 @@ static inline unsigned long global_page_state(enum zone_stat_item item) + static inline unsigned long zone_page_state(struct zone *zone, + enum zone_stat_item item) + { +- long x = atomic_long_read(&zone->vm_stat[item]); ++ long x = atomic_long_read_unchecked(&zone->vm_stat[item]); + #ifdef CONFIG_SMP + if (x < 0) + x = 0; +@@ -126,7 +126,7 @@ static inline unsigned long zone_page_state(struct zone *zone, + static inline unsigned long zone_page_state_snapshot(struct zone *zone, + enum zone_stat_item item) + { +- long x = atomic_long_read(&zone->vm_stat[item]); ++ long x = atomic_long_read_unchecked(&zone->vm_stat[item]); + + #ifdef CONFIG_SMP + int cpu; +@@ -221,8 +221,8 @@ static inline void __mod_zone_page_state(struct zone *zone, + + static inline void __inc_zone_state(struct zone *zone, enum zone_stat_item item) + { +- atomic_long_inc(&zone->vm_stat[item]); +- atomic_long_inc(&vm_stat[item]); ++ atomic_long_inc_unchecked(&zone->vm_stat[item]); ++ atomic_long_inc_unchecked(&vm_stat[item]); + } + + static inline void __inc_zone_page_state(struct page *page, +@@ -233,8 +233,8 @@ static inline void __inc_zone_page_state(struct page *page, + + static inline void __dec_zone_state(struct zone *zone, enum zone_stat_item item) + { +- atomic_long_dec(&zone->vm_stat[item]); +- atomic_long_dec(&vm_stat[item]); ++ atomic_long_dec_unchecked(&zone->vm_stat[item]); ++ atomic_long_dec_unchecked(&vm_stat[item]); + } + + static inline void __dec_zone_page_state(struct page *page, +diff --git a/include/linux/xattr.h b/include/linux/xattr.h +index e5d1220..ef6e406 100644 +--- a/include/linux/xattr.h ++++ b/include/linux/xattr.h +@@ -57,6 +57,11 @@ + #define XATTR_POSIX_ACL_DEFAULT "posix_acl_default" + #define XATTR_NAME_POSIX_ACL_DEFAULT XATTR_SYSTEM_PREFIX XATTR_POSIX_ACL_DEFAULT + ++/* User namespace */ ++#define XATTR_PAX_PREFIX XATTR_USER_PREFIX "pax." ++#define XATTR_PAX_FLAGS_SUFFIX "flags" ++#define XATTR_NAME_PAX_FLAGS XATTR_PAX_PREFIX XATTR_PAX_FLAGS_SUFFIX ++ + #ifdef __KERNEL__ + + #include <linux/types.h> +diff --git a/include/media/saa7146_vv.h b/include/media/saa7146_vv.h +index 4aeff96..b378cdc 100644 +--- a/include/media/saa7146_vv.h ++++ b/include/media/saa7146_vv.h +@@ -163,7 +163,7 @@ struct saa7146_ext_vv + int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *); + + /* the extension can override this */ +- struct v4l2_ioctl_ops ops; ++ v4l2_ioctl_ops_no_const ops; + /* pointer to the saa7146 core ops */ + const struct v4l2_ioctl_ops *core_ops; + +diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h +index 96d2221..2292f89 100644 +--- a/include/media/v4l2-dev.h ++++ b/include/media/v4l2-dev.h +@@ -56,7 +56,7 @@ int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority local); + + + struct v4l2_file_operations { +- struct module *owner; ++ struct module * const owner; + ssize_t (*read) (struct file *, char __user *, size_t, loff_t *); + ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *); + unsigned int (*poll) (struct file *, struct poll_table_struct *); +@@ -71,6 +71,7 @@ struct v4l2_file_operations { + int (*open) (struct file *); + int (*release) (struct file *); + }; ++typedef struct v4l2_file_operations __no_const v4l2_file_operations_no_const; + + /* + * Newer version of video_device, handled by videodev2.c +diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h +index 3cb939c..f23c6bb 100644 +--- a/include/media/v4l2-ioctl.h ++++ b/include/media/v4l2-ioctl.h +@@ -281,7 +281,7 @@ struct v4l2_ioctl_ops { + long (*vidioc_default) (struct file *file, void *fh, + bool valid_prio, int cmd, void *arg); + }; +- ++typedef struct v4l2_ioctl_ops __no_const v4l2_ioctl_ops_no_const; + + /* v4l debugging and diagnostics */ + +diff --git a/include/net/caif/caif_hsi.h b/include/net/caif/caif_hsi.h +index 6db8ecf..8c23861 100644 +--- a/include/net/caif/caif_hsi.h ++++ b/include/net/caif/caif_hsi.h +@@ -98,7 +98,7 @@ struct cfhsi_drv { + void (*rx_done_cb) (struct cfhsi_drv *drv); + void (*wake_up_cb) (struct cfhsi_drv *drv); + void (*wake_down_cb) (struct cfhsi_drv *drv); +-}; ++} __no_const; + + /* Structure implemented by HSI device. */ + struct cfhsi_dev { +diff --git a/include/net/caif/cfctrl.h b/include/net/caif/cfctrl.h +index 9e5425b..8136ffc 100644 +--- a/include/net/caif/cfctrl.h ++++ b/include/net/caif/cfctrl.h +@@ -52,7 +52,7 @@ struct cfctrl_rsp { + void (*radioset_rsp)(void); + void (*reject_rsp)(struct cflayer *layer, u8 linkid, + struct cflayer *client_layer); +-}; ++} __no_const; + + /* Link Setup Parameters for CAIF-Links. */ + struct cfctrl_link_param { +@@ -101,8 +101,8 @@ struct cfctrl_request_info { + struct cfctrl { + struct cfsrvl serv; + struct cfctrl_rsp res; +- atomic_t req_seq_no; +- atomic_t rsp_seq_no; ++ atomic_unchecked_t req_seq_no; ++ atomic_unchecked_t rsp_seq_no; + struct list_head list; + /* Protects from simultaneous access to first_req list */ + spinlock_t info_list_lock; +diff --git a/include/net/flow.h b/include/net/flow.h +index 6c469db..7743b8e 100644 +--- a/include/net/flow.h ++++ b/include/net/flow.h +@@ -221,6 +221,6 @@ extern struct flow_cache_object *flow_cache_lookup( + + extern void flow_cache_flush(void); + extern void flow_cache_flush_deferred(void); +-extern atomic_t flow_cache_genid; ++extern atomic_unchecked_t flow_cache_genid; + + #endif +diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h +index 2040bff..f4c0733 100644 +--- a/include/net/inetpeer.h ++++ b/include/net/inetpeer.h +@@ -51,8 +51,8 @@ struct inet_peer { + */ + union { + struct { +- atomic_t rid; /* Frag reception counter */ +- atomic_t ip_id_count; /* IP ID for the next packet */ ++ atomic_unchecked_t rid; /* Frag reception counter */ ++ atomic_unchecked_t ip_id_count; /* IP ID for the next packet */ + __u32 tcp_ts; + __u32 tcp_ts_stamp; + }; +@@ -118,11 +118,11 @@ static inline int inet_getid(struct inet_peer *p, int more) + more++; + inet_peer_refcheck(p); + do { +- old = atomic_read(&p->ip_id_count); ++ old = atomic_read_unchecked(&p->ip_id_count); + new = old + more; + if (!new) + new = 1; +- } while (atomic_cmpxchg(&p->ip_id_count, old, new) != old); ++ } while (atomic_cmpxchg_unchecked(&p->ip_id_count, old, new) != old); + return new; + } + +diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h +index 10422ef..662570f 100644 +--- a/include/net/ip_fib.h ++++ b/include/net/ip_fib.h +@@ -146,7 +146,7 @@ extern __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh); + + #define FIB_RES_SADDR(net, res) \ + ((FIB_RES_NH(res).nh_saddr_genid == \ +- atomic_read(&(net)->ipv4.dev_addr_genid)) ? \ ++ atomic_read_unchecked(&(net)->ipv4.dev_addr_genid)) ? \ + FIB_RES_NH(res).nh_saddr : \ + fib_info_update_nh_saddr((net), &FIB_RES_NH(res))) + #define FIB_RES_GW(res) (FIB_RES_NH(res).nh_gw) +diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h +index 72522f0..2965e05 100644 +--- a/include/net/ip_vs.h ++++ b/include/net/ip_vs.h +@@ -510,7 +510,7 @@ struct ip_vs_conn { + struct ip_vs_conn *control; /* Master control connection */ + atomic_t n_control; /* Number of controlled ones */ + struct ip_vs_dest *dest; /* real server */ +- atomic_t in_pkts; /* incoming packet counter */ ++ atomic_unchecked_t in_pkts; /* incoming packet counter */ + + /* packet transmitter for different forwarding methods. If it + mangles the packet, it must return NF_DROP or better NF_STOLEN, +@@ -648,7 +648,7 @@ struct ip_vs_dest { + __be16 port; /* port number of the server */ + union nf_inet_addr addr; /* IP address of the server */ + volatile unsigned flags; /* dest status flags */ +- atomic_t conn_flags; /* flags to copy to conn */ ++ atomic_unchecked_t conn_flags; /* flags to copy to conn */ + atomic_t weight; /* server weight */ + + atomic_t refcnt; /* reference counter */ +@@ -1356,7 +1356,7 @@ static inline void ip_vs_notrack(struct sk_buff *skb) + struct nf_conn *ct = nf_ct_get(skb, &ctinfo); + + if (!ct || !nf_ct_is_untracked(ct)) { +- nf_reset(skb); ++ nf_conntrack_put(skb->nfct); + skb->nfct = &nf_ct_untracked_get()->ct_general; + skb->nfctinfo = IP_CT_NEW; + nf_conntrack_get(skb->nfct); +diff --git a/include/net/irda/ircomm_core.h b/include/net/irda/ircomm_core.h +index 69b610a..fe3962c 100644 +--- a/include/net/irda/ircomm_core.h ++++ b/include/net/irda/ircomm_core.h +@@ -51,7 +51,7 @@ typedef struct { + int (*connect_response)(struct ircomm_cb *, struct sk_buff *); + int (*disconnect_request)(struct ircomm_cb *, struct sk_buff *, + struct ircomm_info *); +-} call_t; ++} __no_const call_t; + + struct ircomm_cb { + irda_queue_t queue; +diff --git a/include/net/irda/ircomm_tty.h b/include/net/irda/ircomm_tty.h +index 59ba38bc..d515662 100644 +--- a/include/net/irda/ircomm_tty.h ++++ b/include/net/irda/ircomm_tty.h +@@ -35,6 +35,7 @@ + #include <linux/termios.h> + #include <linux/timer.h> + #include <linux/tty.h> /* struct tty_struct */ ++#include <asm/local.h> + + #include <net/irda/irias_object.h> + #include <net/irda/ircomm_core.h> +@@ -105,8 +106,8 @@ struct ircomm_tty_cb { + unsigned short close_delay; + unsigned short closing_wait; /* time to wait before closing */ + +- int open_count; +- int blocked_open; /* # of blocked opens */ ++ local_t open_count; ++ local_t blocked_open; /* # of blocked opens */ + + /* Protect concurent access to : + * o self->open_count +diff --git a/include/net/iucv/af_iucv.h b/include/net/iucv/af_iucv.h +index cc7c197..9f2da2a 100644 +--- a/include/net/iucv/af_iucv.h ++++ b/include/net/iucv/af_iucv.h +@@ -141,7 +141,7 @@ struct iucv_sock { + struct iucv_sock_list { + struct hlist_head head; + rwlock_t lock; +- atomic_t autobind_name; ++ atomic_unchecked_t autobind_name; + }; + + unsigned int iucv_sock_poll(struct file *file, struct socket *sock, +diff --git a/include/net/neighbour.h b/include/net/neighbour.h +index 34c996f..bb3b4d4 100644 +--- a/include/net/neighbour.h ++++ b/include/net/neighbour.h +@@ -123,7 +123,7 @@ struct neigh_ops { + void (*error_report)(struct neighbour *, struct sk_buff *); + int (*output)(struct neighbour *, struct sk_buff *); + int (*connected_output)(struct neighbour *, struct sk_buff *); +-}; ++} __do_const; + + struct pneigh_entry { + struct pneigh_entry *next; +diff --git a/include/net/netlink.h b/include/net/netlink.h +index f394fe5..fd073f9 100644 +--- a/include/net/netlink.h ++++ b/include/net/netlink.h +@@ -534,7 +534,7 @@ static inline void *nlmsg_get_pos(struct sk_buff *skb) + static inline void nlmsg_trim(struct sk_buff *skb, const void *mark) + { + if (mark) +- skb_trim(skb, (unsigned char *) mark - skb->data); ++ skb_trim(skb, (const unsigned char *) mark - skb->data); + } + + /** +diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h +index bbd023a..97c6d0d 100644 +--- a/include/net/netns/ipv4.h ++++ b/include/net/netns/ipv4.h +@@ -57,8 +57,8 @@ struct netns_ipv4 { + unsigned int sysctl_ping_group_range[2]; + long sysctl_tcp_mem[3]; + +- atomic_t rt_genid; +- atomic_t dev_addr_genid; ++ atomic_unchecked_t rt_genid; ++ atomic_unchecked_t dev_addr_genid; + + #ifdef CONFIG_IP_MROUTE + #ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES +diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h +index a2ef814..31a8e3f 100644 +--- a/include/net/sctp/sctp.h ++++ b/include/net/sctp/sctp.h +@@ -318,9 +318,9 @@ do { \ + + #else /* SCTP_DEBUG */ + +-#define SCTP_DEBUG_PRINTK(whatever...) +-#define SCTP_DEBUG_PRINTK_CONT(fmt, args...) +-#define SCTP_DEBUG_PRINTK_IPADDR(whatever...) ++#define SCTP_DEBUG_PRINTK(whatever...) do {} while (0) ++#define SCTP_DEBUG_PRINTK_CONT(fmt, args...) do {} while (0) ++#define SCTP_DEBUG_PRINTK_IPADDR(whatever...) do {} while (0) + #define SCTP_ENABLE_DEBUG + #define SCTP_DISABLE_DEBUG + #define SCTP_ASSERT(expr, str, func) +diff --git a/include/net/sock.h b/include/net/sock.h +index 5a0a58a..2e3d4d0 100644 +--- a/include/net/sock.h ++++ b/include/net/sock.h +@@ -302,7 +302,7 @@ struct sock { + #ifdef CONFIG_RPS + __u32 sk_rxhash; + #endif +- atomic_t sk_drops; ++ atomic_unchecked_t sk_drops; + int sk_rcvbuf; + + struct sk_filter __rcu *sk_filter; +@@ -1691,7 +1691,7 @@ static inline void sk_nocaps_add(struct sock *sk, netdev_features_t flags) + } + + static inline int skb_do_copy_data_nocache(struct sock *sk, struct sk_buff *skb, +- char __user *from, char *to, ++ char __user *from, unsigned char *to, + int copy, int offset) + { + if (skb->ip_summed == CHECKSUM_NONE) { +diff --git a/include/net/tcp.h b/include/net/tcp.h +index f75a04d..702cf06 100644 +--- a/include/net/tcp.h ++++ b/include/net/tcp.h +@@ -1425,7 +1425,7 @@ struct tcp_seq_afinfo { + char *name; + sa_family_t family; + const struct file_operations *seq_fops; +- struct seq_operations seq_ops; ++ seq_operations_no_const seq_ops; + }; + + struct tcp_iter_state { +diff --git a/include/net/udp.h b/include/net/udp.h +index 5d606d9..e879f7b 100644 +--- a/include/net/udp.h ++++ b/include/net/udp.h +@@ -244,7 +244,7 @@ struct udp_seq_afinfo { + sa_family_t family; + struct udp_table *udp_table; + const struct file_operations *seq_fops; +- struct seq_operations seq_ops; ++ seq_operations_no_const seq_ops; + }; + + struct udp_iter_state { +diff --git a/include/net/xfrm.h b/include/net/xfrm.h +index 96239e7..c85b032 100644 +--- a/include/net/xfrm.h ++++ b/include/net/xfrm.h +@@ -505,7 +505,7 @@ struct xfrm_policy { + struct timer_list timer; + + struct flow_cache_object flo; +- atomic_t genid; ++ atomic_unchecked_t genid; + u32 priority; + u32 index; + struct xfrm_mark mark; +diff --git a/include/rdma/iw_cm.h b/include/rdma/iw_cm.h +index 1a046b1..ee0bef0 100644 +--- a/include/rdma/iw_cm.h ++++ b/include/rdma/iw_cm.h +@@ -122,7 +122,7 @@ struct iw_cm_verbs { + int backlog); + + int (*destroy_listen)(struct iw_cm_id *cm_id); +-}; ++} __no_const; + + /** + * iw_create_cm_id - Create an IW CM identifier. +diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h +index 8f9dfba..610ab6c 100644 +--- a/include/scsi/libfc.h ++++ b/include/scsi/libfc.h +@@ -756,6 +756,7 @@ struct libfc_function_template { + */ + void (*disc_stop_final) (struct fc_lport *); + }; ++typedef struct libfc_function_template __no_const libfc_function_template_no_const; + + /** + * struct fc_disc - Discovery context +@@ -861,7 +862,7 @@ struct fc_lport { + struct fc_vport *vport; + + /* Operational Information */ +- struct libfc_function_template tt; ++ libfc_function_template_no_const tt; + u8 link_up; + u8 qfull; + enum fc_lport_state state; +diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h +index ba96988..ecf2eb9 100644 +--- a/include/scsi/scsi_device.h ++++ b/include/scsi/scsi_device.h +@@ -163,9 +163,9 @@ struct scsi_device { + unsigned int max_device_blocked; /* what device_blocked counts down from */ + #define SCSI_DEFAULT_DEVICE_BLOCKED 3 + +- atomic_t iorequest_cnt; +- atomic_t iodone_cnt; +- atomic_t ioerr_cnt; ++ atomic_unchecked_t iorequest_cnt; ++ atomic_unchecked_t iodone_cnt; ++ atomic_unchecked_t ioerr_cnt; + + struct device sdev_gendev, + sdev_dev; +diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h +index 719faf1..d1154d4 100644 +--- a/include/scsi/scsi_transport_fc.h ++++ b/include/scsi/scsi_transport_fc.h +@@ -739,7 +739,7 @@ struct fc_function_template { + unsigned long show_host_system_hostname:1; + + unsigned long disable_target_scan:1; +-}; ++} __do_const; + + + /** +diff --git a/include/sound/ak4xxx-adda.h b/include/sound/ak4xxx-adda.h +index 030b87c..98a6954 100644 +--- a/include/sound/ak4xxx-adda.h ++++ b/include/sound/ak4xxx-adda.h +@@ -35,7 +35,7 @@ struct snd_ak4xxx_ops { + void (*write)(struct snd_akm4xxx *ak, int chip, unsigned char reg, + unsigned char val); + void (*set_rate_val)(struct snd_akm4xxx *ak, unsigned int rate); +-}; ++} __no_const; + + #define AK4XXX_IMAGE_SIZE (AK4XXX_MAX_CHIPS * 16) /* 64 bytes */ + +diff --git a/include/sound/hwdep.h b/include/sound/hwdep.h +index 8c05e47..2b5df97 100644 +--- a/include/sound/hwdep.h ++++ b/include/sound/hwdep.h +@@ -49,7 +49,7 @@ struct snd_hwdep_ops { + struct snd_hwdep_dsp_status *status); + int (*dsp_load)(struct snd_hwdep *hw, + struct snd_hwdep_dsp_image *image); +-}; ++} __no_const; + + struct snd_hwdep { + struct snd_card *card; +diff --git a/include/sound/info.h b/include/sound/info.h +index 9ca1a49..aba1728 100644 +--- a/include/sound/info.h ++++ b/include/sound/info.h +@@ -44,7 +44,7 @@ struct snd_info_entry_text { + struct snd_info_buffer *buffer); + void (*write)(struct snd_info_entry *entry, + struct snd_info_buffer *buffer); +-}; ++} __no_const; + + struct snd_info_entry_ops { + int (*open)(struct snd_info_entry *entry, +diff --git a/include/sound/pcm.h b/include/sound/pcm.h +index 0d11128..814178e 100644 +--- a/include/sound/pcm.h ++++ b/include/sound/pcm.h +@@ -81,6 +81,7 @@ struct snd_pcm_ops { + int (*mmap)(struct snd_pcm_substream *substream, struct vm_area_struct *vma); + int (*ack)(struct snd_pcm_substream *substream); + }; ++typedef struct snd_pcm_ops __no_const snd_pcm_ops_no_const; + + /* + * +diff --git a/include/sound/sb16_csp.h b/include/sound/sb16_csp.h +index af1b49e..a5d55a5 100644 +--- a/include/sound/sb16_csp.h ++++ b/include/sound/sb16_csp.h +@@ -146,7 +146,7 @@ struct snd_sb_csp_ops { + int (*csp_start) (struct snd_sb_csp * p, int sample_width, int channels); + int (*csp_stop) (struct snd_sb_csp * p); + int (*csp_qsound_transfer) (struct snd_sb_csp * p); +-}; ++} __no_const; + + /* + * CSP private data +diff --git a/include/sound/soc.h b/include/sound/soc.h +index 2ebf787..0276839 100644 +--- a/include/sound/soc.h ++++ b/include/sound/soc.h +@@ -711,7 +711,7 @@ struct snd_soc_platform_driver { + /* platform IO - used for platform DAPM */ + unsigned int (*read)(struct snd_soc_platform *, unsigned int); + int (*write)(struct snd_soc_platform *, unsigned int, unsigned int); +-}; ++} __do_const; + + struct snd_soc_platform { + const char *name; +@@ -887,7 +887,7 @@ struct snd_soc_pcm_runtime { + struct snd_soc_dai_link *dai_link; + struct mutex pcm_mutex; + enum snd_soc_pcm_subclass pcm_subclass; +- struct snd_pcm_ops ops; ++ snd_pcm_ops_no_const ops; + + unsigned int complete:1; + unsigned int dev_registered:1; +diff --git a/include/sound/ymfpci.h b/include/sound/ymfpci.h +index 4119966..1a4671c 100644 +--- a/include/sound/ymfpci.h ++++ b/include/sound/ymfpci.h +@@ -358,7 +358,7 @@ struct snd_ymfpci { + spinlock_t reg_lock; + spinlock_t voice_lock; + wait_queue_head_t interrupt_sleep; +- atomic_t interrupt_sleep_count; ++ atomic_unchecked_t interrupt_sleep_count; + struct snd_info_entry *proc_entry; + const struct firmware *dsp_microcode; + const struct firmware *controller_microcode; +diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h +index aaccc5f..092d568 100644 +--- a/include/target/target_core_base.h ++++ b/include/target/target_core_base.h +@@ -447,7 +447,7 @@ struct t10_reservation_ops { + int (*t10_seq_non_holder)(struct se_cmd *, unsigned char *, u32); + int (*t10_pr_register)(struct se_cmd *); + int (*t10_pr_clear)(struct se_cmd *); +-}; ++} __no_const; + + struct t10_reservation { + /* Reservation effects all target ports */ +@@ -576,7 +576,7 @@ struct se_cmd { + atomic_t t_se_count; + atomic_t t_task_cdbs_left; + atomic_t t_task_cdbs_ex_left; +- atomic_t t_task_cdbs_sent; ++ atomic_unchecked_t t_task_cdbs_sent; + unsigned int transport_state; + #define CMD_T_ABORTED (1 << 0) + #define CMD_T_ACTIVE (1 << 1) +@@ -802,7 +802,7 @@ struct se_device { + spinlock_t stats_lock; + /* Active commands on this virtual SE device */ + atomic_t simple_cmds; +- atomic_t dev_ordered_id; ++ atomic_unchecked_t dev_ordered_id; + atomic_t execute_tasks; + atomic_t dev_ordered_sync; + atomic_t dev_qf_count; +diff --git a/include/trace/events/fs.h b/include/trace/events/fs.h +new file mode 100644 +index 0000000..2efe49d +--- /dev/null ++++ b/include/trace/events/fs.h +@@ -0,0 +1,53 @@ ++#undef TRACE_SYSTEM ++#define TRACE_SYSTEM fs ++ ++#if !defined(_TRACE_FS_H) || defined(TRACE_HEADER_MULTI_READ) ++#define _TRACE_FS_H ++ ++#include <linux/fs.h> ++#include <linux/tracepoint.h> ++ ++TRACE_EVENT(do_sys_open, ++ ++ TP_PROTO(char *filename, int flags, int mode), ++ ++ TP_ARGS(filename, flags, mode), ++ ++ TP_STRUCT__entry( ++ __string( filename, filename ) ++ __field( int, flags ) ++ __field( int, mode ) ++ ), ++ ++ TP_fast_assign( ++ __assign_str(filename, filename); ++ __entry->flags = flags; ++ __entry->mode = mode; ++ ), ++ ++ TP_printk("\"%s\" %x %o", ++ __get_str(filename), __entry->flags, __entry->mode) ++); ++ ++TRACE_EVENT(open_exec, ++ ++ TP_PROTO(const char *filename), ++ ++ TP_ARGS(filename), ++ ++ TP_STRUCT__entry( ++ __string( filename, filename ) ++ ), ++ ++ TP_fast_assign( ++ __assign_str(filename, filename); ++ ), ++ ++ TP_printk("\"%s\"", ++ __get_str(filename)) ++); ++ ++#endif /* _TRACE_FS_H */ ++ ++/* This part must be outside protection */ ++#include <trace/define_trace.h> +diff --git a/include/trace/events/irq.h b/include/trace/events/irq.h +index 1c09820..7f5ec79 100644 +--- a/include/trace/events/irq.h ++++ b/include/trace/events/irq.h +@@ -36,7 +36,7 @@ struct softirq_action; + */ + TRACE_EVENT(irq_handler_entry, + +- TP_PROTO(int irq, struct irqaction *action), ++ TP_PROTO(int irq, const struct irqaction *action), + + TP_ARGS(irq, action), + +@@ -66,7 +66,7 @@ TRACE_EVENT(irq_handler_entry, + */ + TRACE_EVENT(irq_handler_exit, + +- TP_PROTO(int irq, struct irqaction *action, int ret), ++ TP_PROTO(int irq, const struct irqaction *action, int ret), + + TP_ARGS(irq, action, ret), + +diff --git a/include/video/udlfb.h b/include/video/udlfb.h +index f9466fa..f4e2b81 100644 +--- a/include/video/udlfb.h ++++ b/include/video/udlfb.h +@@ -53,10 +53,10 @@ struct dlfb_data { + u32 pseudo_palette[256]; + int blank_mode; /*one of FB_BLANK_ */ + /* blit-only rendering path metrics, exposed through sysfs */ +- atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */ +- atomic_t bytes_identical; /* saved effort with backbuffer comparison */ +- atomic_t bytes_sent; /* to usb, after compression including overhead */ +- atomic_t cpu_kcycles_used; /* transpired during pixel processing */ ++ atomic_unchecked_t bytes_rendered; /* raw pixel-bytes driver asked to render */ ++ atomic_unchecked_t bytes_identical; /* saved effort with backbuffer comparison */ ++ atomic_unchecked_t bytes_sent; /* to usb, after compression including overhead */ ++ atomic_unchecked_t cpu_kcycles_used; /* transpired during pixel processing */ + }; + + #define NR_USB_REQUEST_I2C_SUB_IO 0x02 +diff --git a/include/video/uvesafb.h b/include/video/uvesafb.h +index 0993a22..32ba2fe 100644 +--- a/include/video/uvesafb.h ++++ b/include/video/uvesafb.h +@@ -177,6 +177,7 @@ struct uvesafb_par { + u8 ypan; /* 0 - nothing, 1 - ypan, 2 - ywrap */ + u8 pmi_setpal; /* PMI for palette changes */ + u16 *pmi_base; /* protected mode interface location */ ++ u8 *pmi_code; /* protected mode code location */ + void *pmi_start; + void *pmi_pal; + u8 *vbe_state_orig; /* +diff --git a/init/Kconfig b/init/Kconfig +index 6cfd71d..16006e6 100644 +--- a/init/Kconfig ++++ b/init/Kconfig +@@ -790,6 +790,7 @@ endif # CGROUPS + + config CHECKPOINT_RESTORE + bool "Checkpoint/restore support" if EXPERT ++ depends on !GRKERNSEC + default n + help + Enables additional kernel features in a sake of checkpoint/restore. +@@ -1240,7 +1241,7 @@ config SLUB_DEBUG + + config COMPAT_BRK + bool "Disable heap randomization" +- default y ++ default n + help + Randomizing heap placement makes heap exploits harder, but it + also breaks ancient binaries (including anything libc5 based). +@@ -1423,7 +1424,7 @@ config INIT_ALL_POSSIBLE + config STOP_MACHINE + bool + default y +- depends on (SMP && MODULE_UNLOAD) || HOTPLUG_CPU ++ depends on (SMP && MODULE_UNLOAD) || HOTPLUG_CPU || GRKERNSEC + help + Need stop_machine() primitive. + +diff --git a/init/do_mounts.c b/init/do_mounts.c +index 42b0707..c06eef4 100644 +--- a/init/do_mounts.c ++++ b/init/do_mounts.c +@@ -326,11 +326,11 @@ static void __init get_fs_names(char *page) + static int __init do_mount_root(char *name, char *fs, int flags, void *data) + { + struct super_block *s; +- int err = sys_mount(name, "/root", fs, flags, data); ++ int err = sys_mount((char __force_user *)name, (char __force_user *)"/root", (char __force_user *)fs, flags, (void __force_user *)data); + if (err) + return err; + +- sys_chdir((const char __user __force *)"/root"); ++ sys_chdir((const char __force_user *)"/root"); + s = current->fs->pwd.dentry->d_sb; + ROOT_DEV = s->s_dev; + printk(KERN_INFO +@@ -450,18 +450,18 @@ void __init change_floppy(char *fmt, ...) + va_start(args, fmt); + vsprintf(buf, fmt, args); + va_end(args); +- fd = sys_open("/dev/root", O_RDWR | O_NDELAY, 0); ++ fd = sys_open((char __user *)"/dev/root", O_RDWR | O_NDELAY, 0); + if (fd >= 0) { + sys_ioctl(fd, FDEJECT, 0); + sys_close(fd); + } + printk(KERN_NOTICE "VFS: Insert %s and press ENTER\n", buf); +- fd = sys_open("/dev/console", O_RDWR, 0); ++ fd = sys_open((__force const char __user *)"/dev/console", O_RDWR, 0); + if (fd >= 0) { + sys_ioctl(fd, TCGETS, (long)&termios); + termios.c_lflag &= ~ICANON; + sys_ioctl(fd, TCSETSF, (long)&termios); +- sys_read(fd, &c, 1); ++ sys_read(fd, (char __user *)&c, 1); + termios.c_lflag |= ICANON; + sys_ioctl(fd, TCSETSF, (long)&termios); + sys_close(fd); +@@ -555,6 +555,6 @@ void __init prepare_namespace(void) + mount_root(); + out: + devtmpfs_mount("dev"); +- sys_mount(".", "/", NULL, MS_MOVE, NULL); +- sys_chroot((const char __user __force *)"."); ++ sys_mount((char __force_user *)".", (char __force_user *)"/", NULL, MS_MOVE, NULL); ++ sys_chroot((const char __force_user *)"."); + } +diff --git a/init/do_mounts.h b/init/do_mounts.h +index f5b978a..69dbfe8 100644 +--- a/init/do_mounts.h ++++ b/init/do_mounts.h +@@ -15,15 +15,15 @@ extern int root_mountflags; + + static inline int create_dev(char *name, dev_t dev) + { +- sys_unlink(name); +- return sys_mknod(name, S_IFBLK|0600, new_encode_dev(dev)); ++ sys_unlink((char __force_user *)name); ++ return sys_mknod((char __force_user *)name, S_IFBLK|0600, new_encode_dev(dev)); + } + + #if BITS_PER_LONG == 32 + static inline u32 bstat(char *name) + { + struct stat64 stat; +- if (sys_stat64(name, &stat) != 0) ++ if (sys_stat64((char __force_user *)name, (struct stat64 __force_user *)&stat) != 0) + return 0; + if (!S_ISBLK(stat.st_mode)) + return 0; +@@ -35,7 +35,7 @@ static inline u32 bstat(char *name) + static inline u32 bstat(char *name) + { + struct stat stat; +- if (sys_newstat(name, &stat) != 0) ++ if (sys_newstat((const char __force_user *)name, (struct stat __force_user *)&stat) != 0) + return 0; + if (!S_ISBLK(stat.st_mode)) + return 0; +diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c +index 9047330..de0d1fb 100644 +--- a/init/do_mounts_initrd.c ++++ b/init/do_mounts_initrd.c +@@ -43,13 +43,13 @@ static void __init handle_initrd(void) + create_dev("/dev/root.old", Root_RAM0); + /* mount initrd on rootfs' /root */ + mount_block_root("/dev/root.old", root_mountflags & ~MS_RDONLY); +- sys_mkdir("/old", 0700); +- root_fd = sys_open("/", 0, 0); +- old_fd = sys_open("/old", 0, 0); ++ sys_mkdir((const char __force_user *)"/old", 0700); ++ root_fd = sys_open((const char __force_user *)"/", 0, 0); ++ old_fd = sys_open((const char __force_user *)"/old", 0, 0); + /* move initrd over / and chdir/chroot in initrd root */ +- sys_chdir("/root"); +- sys_mount(".", "/", NULL, MS_MOVE, NULL); +- sys_chroot("."); ++ sys_chdir((const char __force_user *)"/root"); ++ sys_mount((char __force_user *)".", (char __force_user *)"/", NULL, MS_MOVE, NULL); ++ sys_chroot((const char __force_user *)"."); + + /* + * In case that a resume from disk is carried out by linuxrc or one of +@@ -66,15 +66,15 @@ static void __init handle_initrd(void) + + /* move initrd to rootfs' /old */ + sys_fchdir(old_fd); +- sys_mount("/", ".", NULL, MS_MOVE, NULL); ++ sys_mount((char __force_user *)"/", (char __force_user *)".", NULL, MS_MOVE, NULL); + /* switch root and cwd back to / of rootfs */ + sys_fchdir(root_fd); +- sys_chroot("."); ++ sys_chroot((const char __force_user *)"."); + sys_close(old_fd); + sys_close(root_fd); + + if (new_decode_dev(real_root_dev) == Root_RAM0) { +- sys_chdir("/old"); ++ sys_chdir((const char __force_user *)"/old"); + return; + } + +@@ -82,17 +82,17 @@ static void __init handle_initrd(void) + mount_root(); + + printk(KERN_NOTICE "Trying to move old root to /initrd ... "); +- error = sys_mount("/old", "/root/initrd", NULL, MS_MOVE, NULL); ++ error = sys_mount((char __force_user *)"/old", (char __force_user *)"/root/initrd", NULL, MS_MOVE, NULL); + if (!error) + printk("okay\n"); + else { +- int fd = sys_open("/dev/root.old", O_RDWR, 0); ++ int fd = sys_open((const char __force_user *)"/dev/root.old", O_RDWR, 0); + if (error == -ENOENT) + printk("/initrd does not exist. Ignored.\n"); + else + printk("failed\n"); + printk(KERN_NOTICE "Unmounting old root\n"); +- sys_umount("/old", MNT_DETACH); ++ sys_umount((char __force_user *)"/old", MNT_DETACH); + printk(KERN_NOTICE "Trying to free ramdisk memory ... "); + if (fd < 0) { + error = fd; +@@ -115,11 +115,11 @@ int __init initrd_load(void) + * mounted in the normal path. + */ + if (rd_load_image("/initrd.image") && ROOT_DEV != Root_RAM0) { +- sys_unlink("/initrd.image"); ++ sys_unlink((const char __force_user *)"/initrd.image"); + handle_initrd(); + return 1; + } + } +- sys_unlink("/initrd.image"); ++ sys_unlink((const char __force_user *)"/initrd.image"); + return 0; + } +diff --git a/init/do_mounts_md.c b/init/do_mounts_md.c +index 32c4799..c27ee74 100644 +--- a/init/do_mounts_md.c ++++ b/init/do_mounts_md.c +@@ -170,7 +170,7 @@ static void __init md_setup_drive(void) + partitioned ? "_d" : "", minor, + md_setup_args[ent].device_names); + +- fd = sys_open(name, 0, 0); ++ fd = sys_open((char __force_user *)name, 0, 0); + if (fd < 0) { + printk(KERN_ERR "md: open failed - cannot start " + "array %s\n", name); +@@ -233,7 +233,7 @@ static void __init md_setup_drive(void) + * array without it + */ + sys_close(fd); +- fd = sys_open(name, 0, 0); ++ fd = sys_open((char __force_user *)name, 0, 0); + sys_ioctl(fd, BLKRRPART, 0); + } + sys_close(fd); +@@ -283,7 +283,7 @@ static void __init autodetect_raid(void) + + wait_for_device_probe(); + +- fd = sys_open((const char __user __force *) "/dev/md0", 0, 0); ++ fd = sys_open((const char __force_user *) "/dev/md0", 0, 0); + if (fd >= 0) { + sys_ioctl(fd, RAID_AUTORUN, raid_autopart); + sys_close(fd); +diff --git a/init/initramfs.c b/init/initramfs.c +index 8216c30..25e8e32 100644 +--- a/init/initramfs.c ++++ b/init/initramfs.c +@@ -74,7 +74,7 @@ static void __init free_hash(void) + } + } + +-static long __init do_utime(char __user *filename, time_t mtime) ++static long __init do_utime(__force char __user *filename, time_t mtime) + { + struct timespec t[2]; + +@@ -109,7 +109,7 @@ static void __init dir_utime(void) + struct dir_entry *de, *tmp; + list_for_each_entry_safe(de, tmp, &dir_list, list) { + list_del(&de->list); +- do_utime(de->name, de->mtime); ++ do_utime((char __force_user *)de->name, de->mtime); + kfree(de->name); + kfree(de); + } +@@ -271,7 +271,7 @@ static int __init maybe_link(void) + if (nlink >= 2) { + char *old = find_link(major, minor, ino, mode, collected); + if (old) +- return (sys_link(old, collected) < 0) ? -1 : 1; ++ return (sys_link((char __force_user *)old, (char __force_user *)collected) < 0) ? -1 : 1; + } + return 0; + } +@@ -280,11 +280,11 @@ static void __init clean_path(char *path, umode_t mode) + { + struct stat st; + +- if (!sys_newlstat(path, &st) && (st.st_mode^mode) & S_IFMT) { ++ if (!sys_newlstat((char __force_user *)path, (struct stat __force_user *)&st) && (st.st_mode^mode) & S_IFMT) { + if (S_ISDIR(st.st_mode)) +- sys_rmdir(path); ++ sys_rmdir((char __force_user *)path); + else +- sys_unlink(path); ++ sys_unlink((char __force_user *)path); + } + } + +@@ -305,7 +305,7 @@ static int __init do_name(void) + int openflags = O_WRONLY|O_CREAT; + if (ml != 1) + openflags |= O_TRUNC; +- wfd = sys_open(collected, openflags, mode); ++ wfd = sys_open((char __force_user *)collected, openflags, mode); + + if (wfd >= 0) { + sys_fchown(wfd, uid, gid); +@@ -317,17 +317,17 @@ static int __init do_name(void) + } + } + } else if (S_ISDIR(mode)) { +- sys_mkdir(collected, mode); +- sys_chown(collected, uid, gid); +- sys_chmod(collected, mode); ++ sys_mkdir((char __force_user *)collected, mode); ++ sys_chown((char __force_user *)collected, uid, gid); ++ sys_chmod((char __force_user *)collected, mode); + dir_add(collected, mtime); + } else if (S_ISBLK(mode) || S_ISCHR(mode) || + S_ISFIFO(mode) || S_ISSOCK(mode)) { + if (maybe_link() == 0) { +- sys_mknod(collected, mode, rdev); +- sys_chown(collected, uid, gid); +- sys_chmod(collected, mode); +- do_utime(collected, mtime); ++ sys_mknod((char __force_user *)collected, mode, rdev); ++ sys_chown((char __force_user *)collected, uid, gid); ++ sys_chmod((char __force_user *)collected, mode); ++ do_utime((char __force_user *)collected, mtime); + } + } + return 0; +@@ -336,15 +336,15 @@ static int __init do_name(void) + static int __init do_copy(void) + { + if (count >= body_len) { +- sys_write(wfd, victim, body_len); ++ sys_write(wfd, (char __force_user *)victim, body_len); + sys_close(wfd); +- do_utime(vcollected, mtime); ++ do_utime((char __force_user *)vcollected, mtime); + kfree(vcollected); + eat(body_len); + state = SkipIt; + return 0; + } else { +- sys_write(wfd, victim, count); ++ sys_write(wfd, (char __force_user *)victim, count); + body_len -= count; + eat(count); + return 1; +@@ -355,9 +355,9 @@ static int __init do_symlink(void) + { + collected[N_ALIGN(name_len) + body_len] = '\0'; + clean_path(collected, 0); +- sys_symlink(collected + N_ALIGN(name_len), collected); +- sys_lchown(collected, uid, gid); +- do_utime(collected, mtime); ++ sys_symlink((char __force_user *)collected + N_ALIGN(name_len), (char __force_user *)collected); ++ sys_lchown((char __force_user *)collected, uid, gid); ++ do_utime((char __force_user *)collected, mtime); + state = SkipIt; + next_state = Reset; + return 0; +diff --git a/init/main.c b/init/main.c +index b08c5f7..bf65a52 100644 +--- a/init/main.c ++++ b/init/main.c +@@ -95,6 +95,8 @@ static inline void mark_rodata_ro(void) { } + extern void tc_init(void); + #endif + ++extern void grsecurity_init(void); ++ + /* + * Debug helper: via this flag we know that we are in 'early bootup code' + * where only the boot processor is running with IRQ disabled. This means +@@ -148,6 +150,49 @@ static int __init set_reset_devices(char *str) + + __setup("reset_devices", set_reset_devices); + ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++extern char pax_enter_kernel_user[]; ++extern char pax_exit_kernel_user[]; ++extern pgdval_t clone_pgd_mask; ++#endif ++ ++#if defined(CONFIG_X86) && defined(CONFIG_PAX_MEMORY_UDEREF) ++static int __init setup_pax_nouderef(char *str) ++{ ++#ifdef CONFIG_X86_32 ++ unsigned int cpu; ++ struct desc_struct *gdt; ++ ++ for (cpu = 0; cpu < nr_cpu_ids; cpu++) { ++ gdt = get_cpu_gdt_table(cpu); ++ gdt[GDT_ENTRY_KERNEL_DS].type = 3; ++ gdt[GDT_ENTRY_KERNEL_DS].limit = 0xf; ++ gdt[GDT_ENTRY_DEFAULT_USER_CS].limit = 0xf; ++ gdt[GDT_ENTRY_DEFAULT_USER_DS].limit = 0xf; ++ } ++ asm("mov %0, %%ds; mov %0, %%es; mov %0, %%ss" : : "r" (__KERNEL_DS) : "memory"); ++#else ++ memcpy(pax_enter_kernel_user, (unsigned char []){0xc3}, 1); ++ memcpy(pax_exit_kernel_user, (unsigned char []){0xc3}, 1); ++ clone_pgd_mask = ~(pgdval_t)0UL; ++#endif ++ ++ return 0; ++} ++early_param("pax_nouderef", setup_pax_nouderef); ++#endif ++ ++#ifdef CONFIG_PAX_SOFTMODE ++int pax_softmode; ++ ++static int __init setup_pax_softmode(char *str) ++{ ++ get_option(&str, &pax_softmode); ++ return 1; ++} ++__setup("pax_softmode=", setup_pax_softmode); ++#endif ++ + static const char * argv_init[MAX_INIT_ARGS+2] = { "init", NULL, }; + const char * envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, }; + static const char *panic_later, *panic_param; +@@ -674,6 +719,7 @@ int __init_or_module do_one_initcall(initcall_t fn) + { + int count = preempt_count(); + int ret; ++ const char *msg1 = "", *msg2 = ""; + + if (initcall_debug) + ret = do_one_initcall_debug(fn); +@@ -686,15 +732,15 @@ int __init_or_module do_one_initcall(initcall_t fn) + sprintf(msgbuf, "error code %d ", ret); + + if (preempt_count() != count) { +- strlcat(msgbuf, "preemption imbalance ", sizeof(msgbuf)); ++ msg1 = " preemption imbalance"; + preempt_count() = count; + } + if (irqs_disabled()) { +- strlcat(msgbuf, "disabled interrupts ", sizeof(msgbuf)); ++ msg2 = " disabled interrupts"; + local_irq_enable(); + } +- if (msgbuf[0]) { +- printk("initcall %pF returned with %s\n", fn, msgbuf); ++ if (msgbuf[0] || *msg1 || *msg2) { ++ printk("initcall %pF returned with %s%s%s\n", fn, msgbuf, msg1, msg2); + } + + return ret; +@@ -747,8 +793,14 @@ static void __init do_initcall_level(int level) + level, level, + repair_env_string); + +- for (fn = initcall_levels[level]; fn < initcall_levels[level+1]; fn++) ++ for (fn = initcall_levels[level]; fn < initcall_levels[level+1]; fn++) { + do_one_initcall(*fn); ++ ++#ifdef CONFIG_PAX_LATENT_ENTROPY ++ transfer_latent_entropy(); ++#endif ++ ++ } + } + + static void __init do_initcalls(void) +@@ -782,8 +834,14 @@ static void __init do_pre_smp_initcalls(void) + { + initcall_t *fn; + +- for (fn = __initcall_start; fn < __initcall0_start; fn++) ++ for (fn = __initcall_start; fn < __initcall0_start; fn++) { + do_one_initcall(*fn); ++ ++#ifdef CONFIG_PAX_LATENT_ENTROPY ++ transfer_latent_entropy(); ++#endif ++ ++ } + } + + static void run_init_process(const char *init_filename) +@@ -865,7 +923,7 @@ static int __init kernel_init(void * unused) + do_basic_setup(); + + /* Open the /dev/console on the rootfs, this should never fail */ +- if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0) ++ if (sys_open((const char __force_user *) "/dev/console", O_RDWR, 0) < 0) + printk(KERN_WARNING "Warning: unable to open an initial console.\n"); + + (void) sys_dup(0); +@@ -878,11 +936,13 @@ static int __init kernel_init(void * unused) + if (!ramdisk_execute_command) + ramdisk_execute_command = "/init"; + +- if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) { ++ if (sys_access((const char __force_user *) ramdisk_execute_command, 0) != 0) { + ramdisk_execute_command = NULL; + prepare_namespace(); + } + ++ grsecurity_init(); ++ + /* + * Ok, we have completed the initial bootup, and + * we're essentially up and running. Get rid of the +diff --git a/ipc/mqueue.c b/ipc/mqueue.c +index 28bd64d..c66b72a 100644 +--- a/ipc/mqueue.c ++++ b/ipc/mqueue.c +@@ -156,6 +156,7 @@ static struct inode *mqueue_get_inode(struct super_block *sb, + mq_bytes = (mq_msg_tblsz + + (info->attr.mq_maxmsg * info->attr.mq_msgsize)); + ++ gr_learn_resource(current, RLIMIT_MSGQUEUE, u->mq_bytes + mq_bytes, 1); + spin_lock(&mq_lock); + if (u->mq_bytes + mq_bytes < u->mq_bytes || + u->mq_bytes + mq_bytes > rlimit(RLIMIT_MSGQUEUE)) { +diff --git a/ipc/msg.c b/ipc/msg.c +index 7385de2..a8180e08 100644 +--- a/ipc/msg.c ++++ b/ipc/msg.c +@@ -309,18 +309,19 @@ static inline int msg_security(struct kern_ipc_perm *ipcp, int msgflg) + return security_msg_queue_associate(msq, msgflg); + } + ++static struct ipc_ops msg_ops = { ++ .getnew = newque, ++ .associate = msg_security, ++ .more_checks = NULL ++}; ++ + SYSCALL_DEFINE2(msgget, key_t, key, int, msgflg) + { + struct ipc_namespace *ns; +- struct ipc_ops msg_ops; + struct ipc_params msg_params; + + ns = current->nsproxy->ipc_ns; + +- msg_ops.getnew = newque; +- msg_ops.associate = msg_security; +- msg_ops.more_checks = NULL; +- + msg_params.key = key; + msg_params.flg = msgflg; + +diff --git a/ipc/sem.c b/ipc/sem.c +index 5215a81..cfc0cac 100644 +--- a/ipc/sem.c ++++ b/ipc/sem.c +@@ -364,10 +364,15 @@ static inline int sem_more_checks(struct kern_ipc_perm *ipcp, + return 0; + } + ++static struct ipc_ops sem_ops = { ++ .getnew = newary, ++ .associate = sem_security, ++ .more_checks = sem_more_checks ++}; ++ + SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg) + { + struct ipc_namespace *ns; +- struct ipc_ops sem_ops; + struct ipc_params sem_params; + + ns = current->nsproxy->ipc_ns; +@@ -375,10 +380,6 @@ SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg) + if (nsems < 0 || nsems > ns->sc_semmsl) + return -EINVAL; + +- sem_ops.getnew = newary; +- sem_ops.associate = sem_security; +- sem_ops.more_checks = sem_more_checks; +- + sem_params.key = key; + sem_params.flg = semflg; + sem_params.u.nsems = nsems; +diff --git a/ipc/shm.c b/ipc/shm.c +index 406c5b2..bc66d67 100644 +--- a/ipc/shm.c ++++ b/ipc/shm.c +@@ -69,6 +69,14 @@ static void shm_destroy (struct ipc_namespace *ns, struct shmid_kernel *shp); + static int sysvipc_shm_proc_show(struct seq_file *s, void *it); + #endif + ++#ifdef CONFIG_GRKERNSEC ++extern int gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid, ++ const time_t shm_createtime, const uid_t cuid, ++ const int shmid); ++extern int gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid, ++ const time_t shm_createtime); ++#endif ++ + void shm_init_ns(struct ipc_namespace *ns) + { + ns->shm_ctlmax = SHMMAX; +@@ -508,6 +516,14 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params) + shp->shm_lprid = 0; + shp->shm_atim = shp->shm_dtim = 0; + shp->shm_ctim = get_seconds(); ++#ifdef CONFIG_GRKERNSEC ++ { ++ struct timespec timeval; ++ do_posix_clock_monotonic_gettime(&timeval); ++ ++ shp->shm_createtime = timeval.tv_sec; ++ } ++#endif + shp->shm_segsz = size; + shp->shm_nattch = 0; + shp->shm_file = file; +@@ -559,18 +575,19 @@ static inline int shm_more_checks(struct kern_ipc_perm *ipcp, + return 0; + } + ++static struct ipc_ops shm_ops = { ++ .getnew = newseg, ++ .associate = shm_security, ++ .more_checks = shm_more_checks ++}; ++ + SYSCALL_DEFINE3(shmget, key_t, key, size_t, size, int, shmflg) + { + struct ipc_namespace *ns; +- struct ipc_ops shm_ops; + struct ipc_params shm_params; + + ns = current->nsproxy->ipc_ns; + +- shm_ops.getnew = newseg; +- shm_ops.associate = shm_security; +- shm_ops.more_checks = shm_more_checks; +- + shm_params.key = key; + shm_params.flg = shmflg; + shm_params.u.size = size; +@@ -988,6 +1005,12 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr) + f_mode = FMODE_READ | FMODE_WRITE; + } + if (shmflg & SHM_EXEC) { ++ ++#ifdef CONFIG_PAX_MPROTECT ++ if (current->mm->pax_flags & MF_PAX_MPROTECT) ++ goto out; ++#endif ++ + prot |= PROT_EXEC; + acc_mode |= S_IXUGO; + } +@@ -1011,9 +1034,21 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr) + if (err) + goto out_unlock; + ++#ifdef CONFIG_GRKERNSEC ++ if (!gr_handle_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime, ++ shp->shm_perm.cuid, shmid) || ++ !gr_chroot_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime)) { ++ err = -EACCES; ++ goto out_unlock; ++ } ++#endif ++ + path = shp->shm_file->f_path; + path_get(&path); + shp->shm_nattch++; ++#ifdef CONFIG_GRKERNSEC ++ shp->shm_lapid = current->pid; ++#endif + size = i_size_read(path.dentry->d_inode); + shm_unlock(shp); + +diff --git a/kernel/acct.c b/kernel/acct.c +index 02e6167..54824f7 100644 +--- a/kernel/acct.c ++++ b/kernel/acct.c +@@ -550,7 +550,7 @@ static void do_acct_process(struct bsd_acct_struct *acct, + */ + flim = current->signal->rlim[RLIMIT_FSIZE].rlim_cur; + current->signal->rlim[RLIMIT_FSIZE].rlim_cur = RLIM_INFINITY; +- file->f_op->write(file, (char *)&ac, ++ file->f_op->write(file, (char __force_user *)&ac, + sizeof(acct_t), &file->f_pos); + current->signal->rlim[RLIMIT_FSIZE].rlim_cur = flim; + set_fs(fs); +diff --git a/kernel/audit.c b/kernel/audit.c +index 1c7f2c6..9ba5359 100644 +--- a/kernel/audit.c ++++ b/kernel/audit.c +@@ -115,7 +115,7 @@ u32 audit_sig_sid = 0; + 3) suppressed due to audit_rate_limit + 4) suppressed due to audit_backlog_limit + */ +-static atomic_t audit_lost = ATOMIC_INIT(0); ++static atomic_unchecked_t audit_lost = ATOMIC_INIT(0); + + /* The netlink socket. */ + static struct sock *audit_sock; +@@ -237,7 +237,7 @@ void audit_log_lost(const char *message) + unsigned long now; + int print; + +- atomic_inc(&audit_lost); ++ atomic_inc_unchecked(&audit_lost); + + print = (audit_failure == AUDIT_FAIL_PANIC || !audit_rate_limit); + +@@ -256,7 +256,7 @@ void audit_log_lost(const char *message) + printk(KERN_WARNING + "audit: audit_lost=%d audit_rate_limit=%d " + "audit_backlog_limit=%d\n", +- atomic_read(&audit_lost), ++ atomic_read_unchecked(&audit_lost), + audit_rate_limit, + audit_backlog_limit); + audit_panic(message); +@@ -689,7 +689,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh) + status_set.pid = audit_pid; + status_set.rate_limit = audit_rate_limit; + status_set.backlog_limit = audit_backlog_limit; +- status_set.lost = atomic_read(&audit_lost); ++ status_set.lost = atomic_read_unchecked(&audit_lost); + status_set.backlog = skb_queue_len(&audit_skb_queue); + audit_send_reply(NETLINK_CB(skb).pid, seq, AUDIT_GET, 0, 0, + &status_set, sizeof(status_set)); +diff --git a/kernel/auditsc.c b/kernel/auditsc.c +index af1de0f..06dfe57 100644 +--- a/kernel/auditsc.c ++++ b/kernel/auditsc.c +@@ -2288,7 +2288,7 @@ int auditsc_get_stamp(struct audit_context *ctx, + } + + /* global counter which is incremented every time something logs in */ +-static atomic_t session_id = ATOMIC_INIT(0); ++static atomic_unchecked_t session_id = ATOMIC_INIT(0); + + /** + * audit_set_loginuid - set current task's audit_context loginuid +@@ -2312,7 +2312,7 @@ int audit_set_loginuid(uid_t loginuid) + return -EPERM; + #endif /* CONFIG_AUDIT_LOGINUID_IMMUTABLE */ + +- sessionid = atomic_inc_return(&session_id); ++ sessionid = atomic_inc_return_unchecked(&session_id); + if (context && context->in_syscall) { + struct audit_buffer *ab; + +diff --git a/kernel/capability.c b/kernel/capability.c +index 3f1adb6..c564db0 100644 +--- a/kernel/capability.c ++++ b/kernel/capability.c +@@ -202,6 +202,9 @@ SYSCALL_DEFINE2(capget, cap_user_header_t, header, cap_user_data_t, dataptr) + * before modification is attempted and the application + * fails. + */ ++ if (tocopy > ARRAY_SIZE(kdata)) ++ return -EFAULT; ++ + if (copy_to_user(dataptr, kdata, tocopy + * sizeof(struct __user_cap_data_struct))) { + return -EFAULT; +@@ -303,10 +306,11 @@ bool has_ns_capability(struct task_struct *t, + int ret; + + rcu_read_lock(); +- ret = security_capable(__task_cred(t), ns, cap); ++ ret = security_capable(__task_cred(t), ns, cap) == 0 && ++ gr_task_is_capable(t, __task_cred(t), cap); + rcu_read_unlock(); + +- return (ret == 0); ++ return ret; + } + + /** +@@ -343,10 +347,10 @@ bool has_ns_capability_noaudit(struct task_struct *t, + int ret; + + rcu_read_lock(); +- ret = security_capable_noaudit(__task_cred(t), ns, cap); ++ ret = security_capable_noaudit(__task_cred(t), ns, cap) == 0 && gr_task_is_capable_nolog(t, cap); + rcu_read_unlock(); + +- return (ret == 0); ++ return ret; + } + + /** +@@ -384,7 +388,7 @@ bool ns_capable(struct user_namespace *ns, int cap) + BUG(); + } + +- if (security_capable(current_cred(), ns, cap) == 0) { ++ if (security_capable(current_cred(), ns, cap) == 0 && gr_is_capable(cap)) { + current->flags |= PF_SUPERPRIV; + return true; + } +@@ -392,6 +396,21 @@ bool ns_capable(struct user_namespace *ns, int cap) + } + EXPORT_SYMBOL(ns_capable); + ++bool ns_capable_nolog(struct user_namespace *ns, int cap) ++{ ++ if (unlikely(!cap_valid(cap))) { ++ printk(KERN_CRIT "capable() called with invalid cap=%u\n", cap); ++ BUG(); ++ } ++ ++ if (security_capable(current_cred(), ns, cap) == 0 && gr_is_capable_nolog(cap)) { ++ current->flags |= PF_SUPERPRIV; ++ return true; ++ } ++ return false; ++} ++EXPORT_SYMBOL(ns_capable_nolog); ++ + /** + * capable - Determine if the current task has a superior capability in effect + * @cap: The capability to be tested for +@@ -408,6 +427,12 @@ bool capable(int cap) + } + EXPORT_SYMBOL(capable); + ++bool capable_nolog(int cap) ++{ ++ return ns_capable_nolog(&init_user_ns, cap); ++} ++EXPORT_SYMBOL(capable_nolog); ++ + /** + * nsown_capable - Check superior capability to one's own user_ns + * @cap: The capability in question +diff --git a/kernel/compat.c b/kernel/compat.c +index d2c67aa..a629b2e 100644 +--- a/kernel/compat.c ++++ b/kernel/compat.c +@@ -13,6 +13,7 @@ + + #include <linux/linkage.h> + #include <linux/compat.h> ++#include <linux/module.h> + #include <linux/errno.h> + #include <linux/time.h> + #include <linux/signal.h> +@@ -220,7 +221,7 @@ static long compat_nanosleep_restart(struct restart_block *restart) + mm_segment_t oldfs; + long ret; + +- restart->nanosleep.rmtp = (struct timespec __user *) &rmt; ++ restart->nanosleep.rmtp = (struct timespec __force_user *) &rmt; + oldfs = get_fs(); + set_fs(KERNEL_DS); + ret = hrtimer_nanosleep_restart(restart); +@@ -252,7 +253,7 @@ asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp, + oldfs = get_fs(); + set_fs(KERNEL_DS); + ret = hrtimer_nanosleep(&tu, +- rmtp ? (struct timespec __user *)&rmt : NULL, ++ rmtp ? (struct timespec __force_user *)&rmt : NULL, + HRTIMER_MODE_REL, CLOCK_MONOTONIC); + set_fs(oldfs); + +@@ -361,7 +362,7 @@ asmlinkage long compat_sys_sigpending(compat_old_sigset_t __user *set) + mm_segment_t old_fs = get_fs(); + + set_fs(KERNEL_DS); +- ret = sys_sigpending((old_sigset_t __user *) &s); ++ ret = sys_sigpending((old_sigset_t __force_user *) &s); + set_fs(old_fs); + if (ret == 0) + ret = put_user(s, set); +@@ -451,7 +452,7 @@ asmlinkage long compat_sys_old_getrlimit(unsigned int resource, + mm_segment_t old_fs = get_fs(); + + set_fs(KERNEL_DS); +- ret = sys_old_getrlimit(resource, &r); ++ ret = sys_old_getrlimit(resource, (struct rlimit __force_user *)&r); + set_fs(old_fs); + + if (!ret) { +@@ -523,7 +524,7 @@ asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru) + mm_segment_t old_fs = get_fs(); + + set_fs(KERNEL_DS); +- ret = sys_getrusage(who, (struct rusage __user *) &r); ++ ret = sys_getrusage(who, (struct rusage __force_user *) &r); + set_fs(old_fs); + + if (ret) +@@ -550,8 +551,8 @@ compat_sys_wait4(compat_pid_t pid, compat_uint_t __user *stat_addr, int options, + set_fs (KERNEL_DS); + ret = sys_wait4(pid, + (stat_addr ? +- (unsigned int __user *) &status : NULL), +- options, (struct rusage __user *) &r); ++ (unsigned int __force_user *) &status : NULL), ++ options, (struct rusage __force_user *) &r); + set_fs (old_fs); + + if (ret > 0) { +@@ -576,8 +577,8 @@ asmlinkage long compat_sys_waitid(int which, compat_pid_t pid, + memset(&info, 0, sizeof(info)); + + set_fs(KERNEL_DS); +- ret = sys_waitid(which, pid, (siginfo_t __user *)&info, options, +- uru ? (struct rusage __user *)&ru : NULL); ++ ret = sys_waitid(which, pid, (siginfo_t __force_user *)&info, options, ++ uru ? (struct rusage __force_user *)&ru : NULL); + set_fs(old_fs); + + if ((ret < 0) || (info.si_signo == 0)) +@@ -707,8 +708,8 @@ long compat_sys_timer_settime(timer_t timer_id, int flags, + oldfs = get_fs(); + set_fs(KERNEL_DS); + err = sys_timer_settime(timer_id, flags, +- (struct itimerspec __user *) &newts, +- (struct itimerspec __user *) &oldts); ++ (struct itimerspec __force_user *) &newts, ++ (struct itimerspec __force_user *) &oldts); + set_fs(oldfs); + if (!err && old && put_compat_itimerspec(old, &oldts)) + return -EFAULT; +@@ -725,7 +726,7 @@ long compat_sys_timer_gettime(timer_t timer_id, + oldfs = get_fs(); + set_fs(KERNEL_DS); + err = sys_timer_gettime(timer_id, +- (struct itimerspec __user *) &ts); ++ (struct itimerspec __force_user *) &ts); + set_fs(oldfs); + if (!err && put_compat_itimerspec(setting, &ts)) + return -EFAULT; +@@ -744,7 +745,7 @@ long compat_sys_clock_settime(clockid_t which_clock, + oldfs = get_fs(); + set_fs(KERNEL_DS); + err = sys_clock_settime(which_clock, +- (struct timespec __user *) &ts); ++ (struct timespec __force_user *) &ts); + set_fs(oldfs); + return err; + } +@@ -759,7 +760,7 @@ long compat_sys_clock_gettime(clockid_t which_clock, + oldfs = get_fs(); + set_fs(KERNEL_DS); + err = sys_clock_gettime(which_clock, +- (struct timespec __user *) &ts); ++ (struct timespec __force_user *) &ts); + set_fs(oldfs); + if (!err && put_compat_timespec(&ts, tp)) + return -EFAULT; +@@ -779,7 +780,7 @@ long compat_sys_clock_adjtime(clockid_t which_clock, + + oldfs = get_fs(); + set_fs(KERNEL_DS); +- ret = sys_clock_adjtime(which_clock, (struct timex __user *) &txc); ++ ret = sys_clock_adjtime(which_clock, (struct timex __force_user *) &txc); + set_fs(oldfs); + + err = compat_put_timex(utp, &txc); +@@ -799,7 +800,7 @@ long compat_sys_clock_getres(clockid_t which_clock, + oldfs = get_fs(); + set_fs(KERNEL_DS); + err = sys_clock_getres(which_clock, +- (struct timespec __user *) &ts); ++ (struct timespec __force_user *) &ts); + set_fs(oldfs); + if (!err && tp && put_compat_timespec(&ts, tp)) + return -EFAULT; +@@ -811,9 +812,9 @@ static long compat_clock_nanosleep_restart(struct restart_block *restart) + long err; + mm_segment_t oldfs; + struct timespec tu; +- struct compat_timespec *rmtp = restart->nanosleep.compat_rmtp; ++ struct compat_timespec __user *rmtp = restart->nanosleep.compat_rmtp; + +- restart->nanosleep.rmtp = (struct timespec __user *) &tu; ++ restart->nanosleep.rmtp = (struct timespec __force_user *) &tu; + oldfs = get_fs(); + set_fs(KERNEL_DS); + err = clock_nanosleep_restart(restart); +@@ -845,8 +846,8 @@ long compat_sys_clock_nanosleep(clockid_t which_clock, int flags, + oldfs = get_fs(); + set_fs(KERNEL_DS); + err = sys_clock_nanosleep(which_clock, flags, +- (struct timespec __user *) &in, +- (struct timespec __user *) &out); ++ (struct timespec __force_user *) &in, ++ (struct timespec __force_user *) &out); + set_fs(oldfs); + + if ((err == -ERESTART_RESTARTBLOCK) && rmtp && +diff --git a/kernel/configs.c b/kernel/configs.c +index 42e8fa0..9e7406b 100644 +--- a/kernel/configs.c ++++ b/kernel/configs.c +@@ -74,8 +74,19 @@ static int __init ikconfig_init(void) + struct proc_dir_entry *entry; + + /* create the current config file */ ++#if defined(CONFIG_GRKERNSEC_PROC_ADD) || defined(CONFIG_GRKERNSEC_HIDESYM) ++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_HIDESYM) ++ entry = proc_create("config.gz", S_IFREG | S_IRUSR, NULL, ++ &ikconfig_file_ops); ++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ entry = proc_create("config.gz", S_IFREG | S_IRUSR | S_IRGRP, NULL, ++ &ikconfig_file_ops); ++#endif ++#else + entry = proc_create("config.gz", S_IFREG | S_IRUGO, NULL, + &ikconfig_file_ops); ++#endif ++ + if (!entry) + return -ENOMEM; + +diff --git a/kernel/cred.c b/kernel/cred.c +index e70683d..27761b6 100644 +--- a/kernel/cred.c ++++ b/kernel/cred.c +@@ -205,6 +205,15 @@ void exit_creds(struct task_struct *tsk) + validate_creds(cred); + put_cred(cred); + } ++ ++#ifdef CONFIG_GRKERNSEC_SETXID ++ cred = (struct cred *) tsk->delayed_cred; ++ if (cred) { ++ tsk->delayed_cred = NULL; ++ validate_creds(cred); ++ put_cred(cred); ++ } ++#endif + } + + /** +@@ -473,7 +482,7 @@ error_put: + * Always returns 0 thus allowing this function to be tail-called at the end + * of, say, sys_setgid(). + */ +-int commit_creds(struct cred *new) ++static int __commit_creds(struct cred *new) + { + struct task_struct *task = current; + const struct cred *old = task->real_cred; +@@ -492,6 +501,8 @@ int commit_creds(struct cred *new) + + get_cred(new); /* we will require a ref for the subj creds too */ + ++ gr_set_role_label(task, new->uid, new->gid); ++ + /* dumpability changes */ + if (old->euid != new->euid || + old->egid != new->egid || +@@ -541,6 +552,101 @@ int commit_creds(struct cred *new) + put_cred(old); + return 0; + } ++#ifdef CONFIG_GRKERNSEC_SETXID ++extern int set_user(struct cred *new); ++ ++void gr_delayed_cred_worker(void) ++{ ++ const struct cred *new = current->delayed_cred; ++ struct cred *ncred; ++ ++ current->delayed_cred = NULL; ++ ++ if (current_uid() && new != NULL) { ++ // from doing get_cred on it when queueing this ++ put_cred(new); ++ return; ++ } else if (new == NULL) ++ return; ++ ++ ncred = prepare_creds(); ++ if (!ncred) ++ goto die; ++ // uids ++ ncred->uid = new->uid; ++ ncred->euid = new->euid; ++ ncred->suid = new->suid; ++ ncred->fsuid = new->fsuid; ++ // gids ++ ncred->gid = new->gid; ++ ncred->egid = new->egid; ++ ncred->sgid = new->sgid; ++ ncred->fsgid = new->fsgid; ++ // groups ++ if (set_groups(ncred, new->group_info) < 0) { ++ abort_creds(ncred); ++ goto die; ++ } ++ // caps ++ ncred->securebits = new->securebits; ++ ncred->cap_inheritable = new->cap_inheritable; ++ ncred->cap_permitted = new->cap_permitted; ++ ncred->cap_effective = new->cap_effective; ++ ncred->cap_bset = new->cap_bset; ++ ++ if (set_user(ncred)) { ++ abort_creds(ncred); ++ goto die; ++ } ++ ++ // from doing get_cred on it when queueing this ++ put_cred(new); ++ ++ __commit_creds(ncred); ++ return; ++die: ++ // from doing get_cred on it when queueing this ++ put_cred(new); ++ do_group_exit(SIGKILL); ++} ++#endif ++ ++int commit_creds(struct cred *new) ++{ ++#ifdef CONFIG_GRKERNSEC_SETXID ++ int ret; ++ int schedule_it = 0; ++ struct task_struct *t; ++ ++ /* we won't get called with tasklist_lock held for writing ++ and interrupts disabled as the cred struct in that case is ++ init_cred ++ */ ++ if (grsec_enable_setxid && !current_is_single_threaded() && ++ !current_uid() && new->uid) { ++ schedule_it = 1; ++ } ++ ret = __commit_creds(new); ++ if (schedule_it) { ++ rcu_read_lock(); ++ read_lock(&tasklist_lock); ++ for (t = next_thread(current); t != current; ++ t = next_thread(t)) { ++ if (t->delayed_cred == NULL) { ++ t->delayed_cred = get_cred(new); ++ set_tsk_thread_flag(t, TIF_GRSEC_SETXID); ++ set_tsk_need_resched(t); ++ } ++ } ++ read_unlock(&tasklist_lock); ++ rcu_read_unlock(); ++ } ++ return ret; ++#else ++ return __commit_creds(new); ++#endif ++} ++ + EXPORT_SYMBOL(commit_creds); + + /** +diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c +index 0557f24..1a00d9a 100644 +--- a/kernel/debug/debug_core.c ++++ b/kernel/debug/debug_core.c +@@ -122,7 +122,7 @@ static DEFINE_RAW_SPINLOCK(dbg_slave_lock); + */ + static atomic_t masters_in_kgdb; + static atomic_t slaves_in_kgdb; +-static atomic_t kgdb_break_tasklet_var; ++static atomic_unchecked_t kgdb_break_tasklet_var; + atomic_t kgdb_setting_breakpoint; + + struct task_struct *kgdb_usethread; +@@ -132,7 +132,7 @@ int kgdb_single_step; + static pid_t kgdb_sstep_pid; + + /* to keep track of the CPU which is doing the single stepping*/ +-atomic_t kgdb_cpu_doing_single_step = ATOMIC_INIT(-1); ++atomic_unchecked_t kgdb_cpu_doing_single_step = ATOMIC_INIT(-1); + + /* + * If you are debugging a problem where roundup (the collection of +@@ -540,7 +540,7 @@ return_normal: + * kernel will only try for the value of sstep_tries before + * giving up and continuing on. + */ +- if (atomic_read(&kgdb_cpu_doing_single_step) != -1 && ++ if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1 && + (kgdb_info[cpu].task && + kgdb_info[cpu].task->pid != kgdb_sstep_pid) && --sstep_tries) { + atomic_set(&kgdb_active, -1); +@@ -634,8 +634,8 @@ cpu_master_loop: + } + + kgdb_restore: +- if (atomic_read(&kgdb_cpu_doing_single_step) != -1) { +- int sstep_cpu = atomic_read(&kgdb_cpu_doing_single_step); ++ if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1) { ++ int sstep_cpu = atomic_read_unchecked(&kgdb_cpu_doing_single_step); + if (kgdb_info[sstep_cpu].task) + kgdb_sstep_pid = kgdb_info[sstep_cpu].task->pid; + else +@@ -861,18 +861,18 @@ static void kgdb_unregister_callbacks(void) + static void kgdb_tasklet_bpt(unsigned long ing) + { + kgdb_breakpoint(); +- atomic_set(&kgdb_break_tasklet_var, 0); ++ atomic_set_unchecked(&kgdb_break_tasklet_var, 0); + } + + static DECLARE_TASKLET(kgdb_tasklet_breakpoint, kgdb_tasklet_bpt, 0); + + void kgdb_schedule_breakpoint(void) + { +- if (atomic_read(&kgdb_break_tasklet_var) || ++ if (atomic_read_unchecked(&kgdb_break_tasklet_var) || + atomic_read(&kgdb_active) != -1 || + atomic_read(&kgdb_setting_breakpoint)) + return; +- atomic_inc(&kgdb_break_tasklet_var); ++ atomic_inc_unchecked(&kgdb_break_tasklet_var); + tasklet_schedule(&kgdb_tasklet_breakpoint); + } + EXPORT_SYMBOL_GPL(kgdb_schedule_breakpoint); +diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c +index 67b847d..93834dd 100644 +--- a/kernel/debug/kdb/kdb_main.c ++++ b/kernel/debug/kdb/kdb_main.c +@@ -1983,7 +1983,7 @@ static int kdb_lsmod(int argc, const char **argv) + list_for_each_entry(mod, kdb_modules, list) { + + kdb_printf("%-20s%8u 0x%p ", mod->name, +- mod->core_size, (void *)mod); ++ mod->core_size_rx + mod->core_size_rw, (void *)mod); + #ifdef CONFIG_MODULE_UNLOAD + kdb_printf("%4ld ", module_refcount(mod)); + #endif +@@ -1993,7 +1993,7 @@ static int kdb_lsmod(int argc, const char **argv) + kdb_printf(" (Loading)"); + else + kdb_printf(" (Live)"); +- kdb_printf(" 0x%p", mod->module_core); ++ kdb_printf(" 0x%p 0x%p", mod->module_core_rx, mod->module_core_rw); + + #ifdef CONFIG_MODULE_UNLOAD + { +diff --git a/kernel/events/core.c b/kernel/events/core.c +index fd126f8..70b755b 100644 +--- a/kernel/events/core.c ++++ b/kernel/events/core.c +@@ -181,7 +181,7 @@ int perf_proc_update_handler(struct ctl_table *table, int write, + return 0; + } + +-static atomic64_t perf_event_id; ++static atomic64_unchecked_t perf_event_id; + + static void cpu_ctx_sched_out(struct perf_cpu_context *cpuctx, + enum event_type_t event_type); +@@ -2659,7 +2659,7 @@ static void __perf_event_read(void *info) + + static inline u64 perf_event_count(struct perf_event *event) + { +- return local64_read(&event->count) + atomic64_read(&event->child_count); ++ return local64_read(&event->count) + atomic64_read_unchecked(&event->child_count); + } + + static u64 perf_event_read(struct perf_event *event) +@@ -2983,9 +2983,9 @@ u64 perf_event_read_value(struct perf_event *event, u64 *enabled, u64 *running) + mutex_lock(&event->child_mutex); + total += perf_event_read(event); + *enabled += event->total_time_enabled + +- atomic64_read(&event->child_total_time_enabled); ++ atomic64_read_unchecked(&event->child_total_time_enabled); + *running += event->total_time_running + +- atomic64_read(&event->child_total_time_running); ++ atomic64_read_unchecked(&event->child_total_time_running); + + list_for_each_entry(child, &event->child_list, child_list) { + total += perf_event_read(child); +@@ -3393,10 +3393,10 @@ void perf_event_update_userpage(struct perf_event *event) + userpg->offset -= local64_read(&event->hw.prev_count); + + userpg->time_enabled = enabled + +- atomic64_read(&event->child_total_time_enabled); ++ atomic64_read_unchecked(&event->child_total_time_enabled); + + userpg->time_running = running + +- atomic64_read(&event->child_total_time_running); ++ atomic64_read_unchecked(&event->child_total_time_running); + + arch_perf_update_userpage(userpg, now); + +@@ -3829,11 +3829,11 @@ static void perf_output_read_one(struct perf_output_handle *handle, + values[n++] = perf_event_count(event); + if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) { + values[n++] = enabled + +- atomic64_read(&event->child_total_time_enabled); ++ atomic64_read_unchecked(&event->child_total_time_enabled); + } + if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) { + values[n++] = running + +- atomic64_read(&event->child_total_time_running); ++ atomic64_read_unchecked(&event->child_total_time_running); + } + if (read_format & PERF_FORMAT_ID) + values[n++] = primary_event_id(event); +@@ -4511,12 +4511,12 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event) + * need to add enough zero bytes after the string to handle + * the 64bit alignment we do later. + */ +- buf = kzalloc(PATH_MAX + sizeof(u64), GFP_KERNEL); ++ buf = kzalloc(PATH_MAX, GFP_KERNEL); + if (!buf) { + name = strncpy(tmp, "//enomem", sizeof(tmp)); + goto got_name; + } +- name = d_path(&file->f_path, buf, PATH_MAX); ++ name = d_path(&file->f_path, buf, PATH_MAX - sizeof(u64)); + if (IS_ERR(name)) { + name = strncpy(tmp, "//toolong", sizeof(tmp)); + goto got_name; +@@ -5929,7 +5929,7 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu, + event->parent = parent_event; + + event->ns = get_pid_ns(current->nsproxy->pid_ns); +- event->id = atomic64_inc_return(&perf_event_id); ++ event->id = atomic64_inc_return_unchecked(&perf_event_id); + + event->state = PERF_EVENT_STATE_INACTIVE; + +@@ -6491,10 +6491,10 @@ static void sync_child_event(struct perf_event *child_event, + /* + * Add back the child's count to the parent's count: + */ +- atomic64_add(child_val, &parent_event->child_count); +- atomic64_add(child_event->total_time_enabled, ++ atomic64_add_unchecked(child_val, &parent_event->child_count); ++ atomic64_add_unchecked(child_event->total_time_enabled, + &parent_event->child_total_time_enabled); +- atomic64_add(child_event->total_time_running, ++ atomic64_add_unchecked(child_event->total_time_running, + &parent_event->child_total_time_running); + + /* +diff --git a/kernel/exit.c b/kernel/exit.c +index 9d81012..d7911f1 100644 +--- a/kernel/exit.c ++++ b/kernel/exit.c +@@ -59,6 +59,10 @@ + #include <asm/pgtable.h> + #include <asm/mmu_context.h> + ++#ifdef CONFIG_GRKERNSEC ++extern rwlock_t grsec_exec_file_lock; ++#endif ++ + static void exit_mm(struct task_struct * tsk); + + static void __unhash_process(struct task_struct *p, bool group_dead) +@@ -170,6 +174,10 @@ void release_task(struct task_struct * p) + struct task_struct *leader; + int zap_leader; + repeat: ++#ifdef CONFIG_NET ++ gr_del_task_from_ip_table(p); ++#endif ++ + /* don't need to get the RCU readlock here - the process is dead and + * can't be modifying its own credentials. But shut RCU-lockdep up */ + rcu_read_lock(); +@@ -382,7 +390,7 @@ int allow_signal(int sig) + * know it'll be handled, so that they don't get converted to + * SIGKILL or just silently dropped. + */ +- current->sighand->action[(sig)-1].sa.sa_handler = (void __user *)2; ++ current->sighand->action[(sig)-1].sa.sa_handler = (__force void __user *)2; + recalc_sigpending(); + spin_unlock_irq(&current->sighand->siglock); + return 0; +@@ -418,6 +426,17 @@ void daemonize(const char *name, ...) + vsnprintf(current->comm, sizeof(current->comm), name, args); + va_end(args); + ++#ifdef CONFIG_GRKERNSEC ++ write_lock(&grsec_exec_file_lock); ++ if (current->exec_file) { ++ fput(current->exec_file); ++ current->exec_file = NULL; ++ } ++ write_unlock(&grsec_exec_file_lock); ++#endif ++ ++ gr_set_kernel_label(current); ++ + /* + * If we were started as result of loading a module, close all of the + * user space pages. We don't need them, and if we didn't close them +@@ -901,6 +920,8 @@ void do_exit(long code) + struct task_struct *tsk = current; + int group_dead; + ++ set_fs(USER_DS); ++ + profile_task_exit(tsk); + + WARN_ON(blk_needs_flush_plug(tsk)); +@@ -917,7 +938,6 @@ void do_exit(long code) + * mm_release()->clear_child_tid() from writing to a user-controlled + * kernel address. + */ +- set_fs(USER_DS); + + ptrace_event(PTRACE_EVENT_EXIT, code); + +@@ -978,6 +998,9 @@ void do_exit(long code) + tsk->exit_code = code; + taskstats_exit(tsk, group_dead); + ++ gr_acl_handle_psacct(tsk, code); ++ gr_acl_handle_exit(); ++ + exit_mm(tsk); + + if (group_dead) +@@ -1094,7 +1117,7 @@ SYSCALL_DEFINE1(exit, int, error_code) + * Take down every thread in the group. This is called by fatal signals + * as well as by sys_exit_group (below). + */ +-void ++__noreturn void + do_group_exit(int exit_code) + { + struct signal_struct *sig = current->signal; +diff --git a/kernel/fork.c b/kernel/fork.c +index 8163333..aee97f3 100644 +--- a/kernel/fork.c ++++ b/kernel/fork.c +@@ -274,19 +274,24 @@ static struct task_struct *dup_task_struct(struct task_struct *orig) + } + + err = arch_dup_task_struct(tsk, orig); +- if (err) +- goto out; + ++ /* ++ * We defer looking at err, because we will need this setup ++ * for the clean up path to work correctly. ++ */ + tsk->stack = ti; +- + setup_thread_stack(tsk, orig); ++ ++ if (err) ++ goto out; ++ + clear_user_return_notifier(tsk); + clear_tsk_need_resched(tsk); + stackend = end_of_stack(tsk); + *stackend = STACK_END_MAGIC; /* for overflow detection */ + + #ifdef CONFIG_CC_STACKPROTECTOR +- tsk->stack_canary = get_random_int(); ++ tsk->stack_canary = pax_get_random_long(); + #endif + + /* +@@ -310,13 +315,78 @@ out: + } + + #ifdef CONFIG_MMU ++static struct vm_area_struct *dup_vma(struct mm_struct *mm, struct mm_struct *oldmm, struct vm_area_struct *mpnt) ++{ ++ struct vm_area_struct *tmp; ++ unsigned long charge; ++ struct mempolicy *pol; ++ struct file *file; ++ ++ charge = 0; ++ if (mpnt->vm_flags & VM_ACCOUNT) { ++ unsigned long len; ++ len = (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT; ++ if (security_vm_enough_memory_mm(oldmm, len)) /* sic */ ++ goto fail_nomem; ++ charge = len; ++ } ++ tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL); ++ if (!tmp) ++ goto fail_nomem; ++ *tmp = *mpnt; ++ tmp->vm_mm = mm; ++ INIT_LIST_HEAD(&tmp->anon_vma_chain); ++ pol = mpol_dup(vma_policy(mpnt)); ++ if (IS_ERR(pol)) ++ goto fail_nomem_policy; ++ vma_set_policy(tmp, pol); ++ if (anon_vma_fork(tmp, mpnt)) ++ goto fail_nomem_anon_vma_fork; ++ tmp->vm_flags &= ~VM_LOCKED; ++ tmp->vm_next = tmp->vm_prev = NULL; ++ tmp->vm_mirror = NULL; ++ file = tmp->vm_file; ++ if (file) { ++ struct inode *inode = file->f_path.dentry->d_inode; ++ struct address_space *mapping = file->f_mapping; ++ ++ get_file(file); ++ if (tmp->vm_flags & VM_DENYWRITE) ++ atomic_dec(&inode->i_writecount); ++ mutex_lock(&mapping->i_mmap_mutex); ++ if (tmp->vm_flags & VM_SHARED) ++ mapping->i_mmap_writable++; ++ flush_dcache_mmap_lock(mapping); ++ /* insert tmp into the share list, just after mpnt */ ++ vma_prio_tree_add(tmp, mpnt); ++ flush_dcache_mmap_unlock(mapping); ++ mutex_unlock(&mapping->i_mmap_mutex); ++ } ++ ++ /* ++ * Clear hugetlb-related page reserves for children. This only ++ * affects MAP_PRIVATE mappings. Faults generated by the child ++ * are not guaranteed to succeed, even if read-only ++ */ ++ if (is_vm_hugetlb_page(tmp)) ++ reset_vma_resv_huge_pages(tmp); ++ ++ return tmp; ++ ++fail_nomem_anon_vma_fork: ++ mpol_put(pol); ++fail_nomem_policy: ++ kmem_cache_free(vm_area_cachep, tmp); ++fail_nomem: ++ vm_unacct_memory(charge); ++ return NULL; ++} ++ + static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm) + { + struct vm_area_struct *mpnt, *tmp, *prev, **pprev; + struct rb_node **rb_link, *rb_parent; + int retval; +- unsigned long charge; +- struct mempolicy *pol; + + down_write(&oldmm->mmap_sem); + flush_cache_dup_mm(oldmm); +@@ -328,8 +398,8 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm) + mm->locked_vm = 0; + mm->mmap = NULL; + mm->mmap_cache = NULL; +- mm->free_area_cache = oldmm->mmap_base; +- mm->cached_hole_size = ~0UL; ++ mm->free_area_cache = oldmm->free_area_cache; ++ mm->cached_hole_size = oldmm->cached_hole_size; + mm->map_count = 0; + cpumask_clear(mm_cpumask(mm)); + mm->mm_rb = RB_ROOT; +@@ -345,8 +415,6 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm) + + prev = NULL; + for (mpnt = oldmm->mmap; mpnt; mpnt = mpnt->vm_next) { +- struct file *file; +- + if (mpnt->vm_flags & VM_DONTCOPY) { + long pages = vma_pages(mpnt); + mm->total_vm -= pages; +@@ -354,54 +422,11 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm) + -pages); + continue; + } +- charge = 0; +- if (mpnt->vm_flags & VM_ACCOUNT) { +- unsigned long len; +- len = (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT; +- if (security_vm_enough_memory_mm(oldmm, len)) /* sic */ +- goto fail_nomem; +- charge = len; ++ tmp = dup_vma(mm, oldmm, mpnt); ++ if (!tmp) { ++ retval = -ENOMEM; ++ goto out; + } +- tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL); +- if (!tmp) +- goto fail_nomem; +- *tmp = *mpnt; +- INIT_LIST_HEAD(&tmp->anon_vma_chain); +- pol = mpol_dup(vma_policy(mpnt)); +- retval = PTR_ERR(pol); +- if (IS_ERR(pol)) +- goto fail_nomem_policy; +- vma_set_policy(tmp, pol); +- tmp->vm_mm = mm; +- if (anon_vma_fork(tmp, mpnt)) +- goto fail_nomem_anon_vma_fork; +- tmp->vm_flags &= ~VM_LOCKED; +- tmp->vm_next = tmp->vm_prev = NULL; +- file = tmp->vm_file; +- if (file) { +- struct inode *inode = file->f_path.dentry->d_inode; +- struct address_space *mapping = file->f_mapping; +- +- get_file(file); +- if (tmp->vm_flags & VM_DENYWRITE) +- atomic_dec(&inode->i_writecount); +- mutex_lock(&mapping->i_mmap_mutex); +- if (tmp->vm_flags & VM_SHARED) +- mapping->i_mmap_writable++; +- flush_dcache_mmap_lock(mapping); +- /* insert tmp into the share list, just after mpnt */ +- vma_prio_tree_add(tmp, mpnt); +- flush_dcache_mmap_unlock(mapping); +- mutex_unlock(&mapping->i_mmap_mutex); +- } +- +- /* +- * Clear hugetlb-related page reserves for children. This only +- * affects MAP_PRIVATE mappings. Faults generated by the child +- * are not guaranteed to succeed, even if read-only +- */ +- if (is_vm_hugetlb_page(tmp)) +- reset_vma_resv_huge_pages(tmp); + + /* + * Link in the new vma and copy the page table entries. +@@ -424,6 +449,31 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm) + if (retval) + goto out; + } ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (oldmm->pax_flags & MF_PAX_SEGMEXEC) { ++ struct vm_area_struct *mpnt_m; ++ ++ for (mpnt = oldmm->mmap, mpnt_m = mm->mmap; mpnt; mpnt = mpnt->vm_next, mpnt_m = mpnt_m->vm_next) { ++ BUG_ON(!mpnt_m || mpnt_m->vm_mirror || mpnt->vm_mm != oldmm || mpnt_m->vm_mm != mm); ++ ++ if (!mpnt->vm_mirror) ++ continue; ++ ++ if (mpnt->vm_end <= SEGMEXEC_TASK_SIZE) { ++ BUG_ON(mpnt->vm_mirror->vm_mirror != mpnt); ++ mpnt->vm_mirror = mpnt_m; ++ } else { ++ BUG_ON(mpnt->vm_mirror->vm_mirror == mpnt || mpnt->vm_mirror->vm_mirror->vm_mm != mm); ++ mpnt_m->vm_mirror = mpnt->vm_mirror->vm_mirror; ++ mpnt_m->vm_mirror->vm_mirror = mpnt_m; ++ mpnt->vm_mirror->vm_mirror = mpnt; ++ } ++ } ++ BUG_ON(mpnt_m); ++ } ++#endif ++ + /* a new mm has just been created */ + arch_dup_mmap(oldmm, mm); + retval = 0; +@@ -432,14 +482,6 @@ out: + flush_tlb_mm(oldmm); + up_write(&oldmm->mmap_sem); + return retval; +-fail_nomem_anon_vma_fork: +- mpol_put(pol); +-fail_nomem_policy: +- kmem_cache_free(vm_area_cachep, tmp); +-fail_nomem: +- retval = -ENOMEM; +- vm_unacct_memory(charge); +- goto out; + } + + static inline int mm_alloc_pgd(struct mm_struct *mm) +@@ -676,8 +718,8 @@ struct mm_struct *mm_access(struct task_struct *task, unsigned int mode) + return ERR_PTR(err); + + mm = get_task_mm(task); +- if (mm && mm != current->mm && +- !ptrace_may_access(task, mode)) { ++ if (mm && ((mm != current->mm && !ptrace_may_access(task, mode)) || ++ (mode == PTRACE_MODE_ATTACH && (gr_handle_proc_ptrace(task) || gr_acl_handle_procpidmem(task))))) { + mmput(mm); + mm = ERR_PTR(-EACCES); + } +@@ -899,13 +941,14 @@ static int copy_fs(unsigned long clone_flags, struct task_struct *tsk) + spin_unlock(&fs->lock); + return -EAGAIN; + } +- fs->users++; ++ atomic_inc(&fs->users); + spin_unlock(&fs->lock); + return 0; + } + tsk->fs = copy_fs_struct(fs); + if (!tsk->fs) + return -ENOMEM; ++ gr_set_chroot_entries(tsk, &tsk->fs->root); + return 0; + } + +@@ -1172,6 +1215,9 @@ static struct task_struct *copy_process(unsigned long clone_flags, + DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled); + #endif + retval = -EAGAIN; ++ ++ gr_learn_resource(p, RLIMIT_NPROC, atomic_read(&p->real_cred->user->processes), 0); ++ + if (atomic_read(&p->real_cred->user->processes) >= + task_rlimit(p, RLIMIT_NPROC)) { + if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE) && +@@ -1392,6 +1438,9 @@ static struct task_struct *copy_process(unsigned long clone_flags, + /* Need tasklist lock for parent etc handling! */ + write_lock_irq(&tasklist_lock); + ++ /* synchronizes with gr_set_acls() */ ++ gr_copy_label(p); ++ + /* CLONE_PARENT re-uses the old parent */ + if (clone_flags & (CLONE_PARENT|CLONE_THREAD)) { + p->real_parent = current->real_parent; +@@ -1502,6 +1551,8 @@ bad_fork_cleanup_count: + bad_fork_free: + free_task(p); + fork_out: ++ gr_log_forkfail(retval); ++ + return ERR_PTR(retval); + } + +@@ -1602,6 +1653,8 @@ long do_fork(unsigned long clone_flags, + if (clone_flags & CLONE_PARENT_SETTID) + put_user(nr, parent_tidptr); + ++ gr_handle_brute_check(); ++ + if (clone_flags & CLONE_VFORK) { + p->vfork_done = &vfork; + init_completion(&vfork); +@@ -1700,7 +1753,7 @@ static int unshare_fs(unsigned long unshare_flags, struct fs_struct **new_fsp) + return 0; + + /* don't need lock here; in the worst case we'll do useless copy */ +- if (fs->users == 1) ++ if (atomic_read(&fs->users) == 1) + return 0; + + *new_fsp = copy_fs_struct(fs); +@@ -1789,7 +1842,8 @@ SYSCALL_DEFINE1(unshare, unsigned long, unshare_flags) + fs = current->fs; + spin_lock(&fs->lock); + current->fs = new_fs; +- if (--fs->users) ++ gr_set_chroot_entries(current, &current->fs->root); ++ if (atomic_dec_return(&fs->users)) + new_fs = NULL; + else + new_fs = fs; +diff --git a/kernel/futex.c b/kernel/futex.c +index e2b0fb9..db818ac 100644 +--- a/kernel/futex.c ++++ b/kernel/futex.c +@@ -54,6 +54,7 @@ + #include <linux/mount.h> + #include <linux/pagemap.h> + #include <linux/syscalls.h> ++#include <linux/ptrace.h> + #include <linux/signal.h> + #include <linux/export.h> + #include <linux/magic.h> +@@ -239,6 +240,11 @@ get_futex_key(u32 __user *uaddr, int fshared, union futex_key *key, int rw) + struct page *page, *page_head; + int err, ro = 0; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && address >= SEGMEXEC_TASK_SIZE) ++ return -EFAULT; ++#endif ++ + /* + * The futex address must be "naturally" aligned. + */ +@@ -2711,6 +2717,7 @@ static int __init futex_init(void) + { + u32 curval; + int i; ++ mm_segment_t oldfs; + + /* + * This will fail and we want it. Some arch implementations do +@@ -2722,8 +2729,11 @@ static int __init futex_init(void) + * implementation, the non-functional ones will return + * -ENOSYS. + */ ++ oldfs = get_fs(); ++ set_fs(USER_DS); + if (cmpxchg_futex_value_locked(&curval, NULL, 0, 0) == -EFAULT) + futex_cmpxchg_enabled = 1; ++ set_fs(oldfs); + + for (i = 0; i < ARRAY_SIZE(futex_queues); i++) { + plist_head_init(&futex_queues[i].chain); +diff --git a/kernel/gcov/base.c b/kernel/gcov/base.c +index 9b22d03..6295b62 100644 +--- a/kernel/gcov/base.c ++++ b/kernel/gcov/base.c +@@ -102,11 +102,6 @@ void gcov_enable_events(void) + } + + #ifdef CONFIG_MODULES +-static inline int within(void *addr, void *start, unsigned long size) +-{ +- return ((addr >= start) && (addr < start + size)); +-} +- + /* Update list and generate events when modules are unloaded. */ + static int gcov_module_notifier(struct notifier_block *nb, unsigned long event, + void *data) +@@ -121,7 +116,7 @@ static int gcov_module_notifier(struct notifier_block *nb, unsigned long event, + prev = NULL; + /* Remove entries located in module from linked list. */ + for (info = gcov_info_head; info; info = info->next) { +- if (within(info, mod->module_core, mod->core_size)) { ++ if (within_module_core_rw((unsigned long)info, mod)) { + if (prev) + prev->next = info->next; + else +diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c +index 6db7a5e..25b6648 100644 +--- a/kernel/hrtimer.c ++++ b/kernel/hrtimer.c +@@ -1407,7 +1407,7 @@ void hrtimer_peek_ahead_timers(void) + local_irq_restore(flags); + } + +-static void run_hrtimer_softirq(struct softirq_action *h) ++static void run_hrtimer_softirq(void) + { + struct hrtimer_cpu_base *cpu_base = &__get_cpu_var(hrtimer_bases); + +diff --git a/kernel/jump_label.c b/kernel/jump_label.c +index 4304919..408c4c0 100644 +--- a/kernel/jump_label.c ++++ b/kernel/jump_label.c +@@ -13,6 +13,7 @@ + #include <linux/sort.h> + #include <linux/err.h> + #include <linux/static_key.h> ++#include <linux/mm.h> + + #ifdef HAVE_JUMP_LABEL + +@@ -50,7 +51,9 @@ jump_label_sort_entries(struct jump_entry *start, struct jump_entry *stop) + + size = (((unsigned long)stop - (unsigned long)start) + / sizeof(struct jump_entry)); ++ pax_open_kernel(); + sort(start, size, sizeof(struct jump_entry), jump_label_cmp, NULL); ++ pax_close_kernel(); + } + + static void jump_label_update(struct static_key *key, int enable); +@@ -356,10 +359,12 @@ static void jump_label_invalidate_module_init(struct module *mod) + struct jump_entry *iter_stop = iter_start + mod->num_jump_entries; + struct jump_entry *iter; + ++ pax_open_kernel(); + for (iter = iter_start; iter < iter_stop; iter++) { + if (within_module_init(iter->code, mod)) + iter->code = 0; + } ++ pax_close_kernel(); + } + + static int +diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c +index 079f1d3..4e80e69 100644 +--- a/kernel/kallsyms.c ++++ b/kernel/kallsyms.c +@@ -11,6 +11,9 @@ + * Changed the compression method from stem compression to "table lookup" + * compression (see scripts/kallsyms.c for a more complete description) + */ ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++#define __INCLUDED_BY_HIDESYM 1 ++#endif + #include <linux/kallsyms.h> + #include <linux/module.h> + #include <linux/init.h> +@@ -53,12 +56,33 @@ extern const unsigned long kallsyms_markers[] __attribute__((weak)); + + static inline int is_kernel_inittext(unsigned long addr) + { ++ if (system_state != SYSTEM_BOOTING) ++ return 0; ++ + if (addr >= (unsigned long)_sinittext + && addr <= (unsigned long)_einittext) + return 1; + return 0; + } + ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) ++#ifdef CONFIG_MODULES ++static inline int is_module_text(unsigned long addr) ++{ ++ if ((unsigned long)MODULES_EXEC_VADDR <= addr && addr <= (unsigned long)MODULES_EXEC_END) ++ return 1; ++ ++ addr = ktla_ktva(addr); ++ return (unsigned long)MODULES_EXEC_VADDR <= addr && addr <= (unsigned long)MODULES_EXEC_END; ++} ++#else ++static inline int is_module_text(unsigned long addr) ++{ ++ return 0; ++} ++#endif ++#endif ++ + static inline int is_kernel_text(unsigned long addr) + { + if ((addr >= (unsigned long)_stext && addr <= (unsigned long)_etext) || +@@ -69,13 +93,28 @@ static inline int is_kernel_text(unsigned long addr) + + static inline int is_kernel(unsigned long addr) + { ++ ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) ++ if (is_kernel_text(addr) || is_kernel_inittext(addr)) ++ return 1; ++ ++ if (ktla_ktva((unsigned long)_text) <= addr && addr < (unsigned long)_end) ++#else + if (addr >= (unsigned long)_stext && addr <= (unsigned long)_end) ++#endif ++ + return 1; + return in_gate_area_no_mm(addr); + } + + static int is_ksym_addr(unsigned long addr) + { ++ ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) ++ if (is_module_text(addr)) ++ return 0; ++#endif ++ + if (all_var) + return is_kernel(addr); + +@@ -454,7 +493,6 @@ static unsigned long get_ksymbol_core(struct kallsym_iter *iter) + + static void reset_iter(struct kallsym_iter *iter, loff_t new_pos) + { +- iter->name[0] = '\0'; + iter->nameoff = get_symbol_offset(new_pos); + iter->pos = new_pos; + } +@@ -502,6 +540,11 @@ static int s_show(struct seq_file *m, void *p) + { + struct kallsym_iter *iter = m->private; + ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ if (current_uid()) ++ return 0; ++#endif ++ + /* Some debugging symbols have no name. Ignore them. */ + if (!iter->name[0]) + return 0; +@@ -515,11 +558,22 @@ static int s_show(struct seq_file *m, void *p) + */ + type = iter->exported ? toupper(iter->type) : + tolower(iter->type); ++ ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ seq_printf(m, "%pP %c %s\t[%s]\n", (void *)iter->value, ++ type, iter->name, iter->module_name); ++#else + seq_printf(m, "%pK %c %s\t[%s]\n", (void *)iter->value, + type, iter->name, iter->module_name); ++#endif + } else ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ seq_printf(m, "%pP %c %s\n", (void *)iter->value, ++ iter->type, iter->name); ++#else + seq_printf(m, "%pK %c %s\n", (void *)iter->value, + iter->type, iter->name); ++#endif + return 0; + } + +@@ -540,7 +594,7 @@ static int kallsyms_open(struct inode *inode, struct file *file) + struct kallsym_iter *iter; + int ret; + +- iter = kmalloc(sizeof(*iter), GFP_KERNEL); ++ iter = kzalloc(sizeof(*iter), GFP_KERNEL); + if (!iter) + return -ENOMEM; + reset_iter(iter, 0); +diff --git a/kernel/kexec.c b/kernel/kexec.c +index 4e2e472..cd0c7ae 100644 +--- a/kernel/kexec.c ++++ b/kernel/kexec.c +@@ -1046,7 +1046,8 @@ asmlinkage long compat_sys_kexec_load(unsigned long entry, + unsigned long flags) + { + struct compat_kexec_segment in; +- struct kexec_segment out, __user *ksegments; ++ struct kexec_segment out; ++ struct kexec_segment __user *ksegments; + unsigned long i, result; + + /* Don't allow clients that don't understand the native +diff --git a/kernel/kmod.c b/kernel/kmod.c +index 05698a7..a4c1e3a 100644 +--- a/kernel/kmod.c ++++ b/kernel/kmod.c +@@ -66,7 +66,7 @@ static void free_modprobe_argv(struct subprocess_info *info) + kfree(info->argv); + } + +-static int call_modprobe(char *module_name, int wait) ++static int call_modprobe(char *module_name, char *module_param, int wait) + { + static char *envp[] = { + "HOME=/", +@@ -75,7 +75,7 @@ static int call_modprobe(char *module_name, int wait) + NULL + }; + +- char **argv = kmalloc(sizeof(char *[5]), GFP_KERNEL); ++ char **argv = kmalloc(sizeof(char *[6]), GFP_KERNEL); + if (!argv) + goto out; + +@@ -87,7 +87,8 @@ static int call_modprobe(char *module_name, int wait) + argv[1] = "-q"; + argv[2] = "--"; + argv[3] = module_name; /* check free_modprobe_argv() */ +- argv[4] = NULL; ++ argv[4] = module_param; ++ argv[5] = NULL; + + return call_usermodehelper_fns(modprobe_path, argv, envp, + wait | UMH_KILLABLE, NULL, free_modprobe_argv, NULL); +@@ -112,9 +113,8 @@ out: + * If module auto-loading support is disabled then this function + * becomes a no-operation. + */ +-int __request_module(bool wait, const char *fmt, ...) ++static int ____request_module(bool wait, char *module_param, const char *fmt, va_list ap) + { +- va_list args; + char module_name[MODULE_NAME_LEN]; + unsigned int max_modprobes; + int ret; +@@ -122,9 +122,7 @@ int __request_module(bool wait, const char *fmt, ...) + #define MAX_KMOD_CONCURRENT 50 /* Completely arbitrary value - KAO */ + static int kmod_loop_msg; + +- va_start(args, fmt); +- ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, args); +- va_end(args); ++ ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, ap); + if (ret >= MODULE_NAME_LEN) + return -ENAMETOOLONG; + +@@ -132,6 +130,20 @@ int __request_module(bool wait, const char *fmt, ...) + if (ret) + return ret; + ++#ifdef CONFIG_GRKERNSEC_MODHARDEN ++ if (!current_uid()) { ++ /* hack to workaround consolekit/udisks stupidity */ ++ read_lock(&tasklist_lock); ++ if (!strcmp(current->comm, "mount") && ++ current->real_parent && !strncmp(current->real_parent->comm, "udisk", 5)) { ++ read_unlock(&tasklist_lock); ++ printk(KERN_ALERT "grsec: denied attempt to auto-load fs module %.64s by udisks\n", module_name); ++ return -EPERM; ++ } ++ read_unlock(&tasklist_lock); ++ } ++#endif ++ + /* If modprobe needs a service that is in a module, we get a recursive + * loop. Limit the number of running kmod threads to max_threads/2 or + * MAX_KMOD_CONCURRENT, whichever is the smaller. A cleaner method +@@ -160,11 +172,52 @@ int __request_module(bool wait, const char *fmt, ...) + + trace_module_request(module_name, wait, _RET_IP_); + +- ret = call_modprobe(module_name, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC); ++ ret = call_modprobe(module_name, module_param, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC); + + atomic_dec(&kmod_concurrent); + return ret; + } ++ ++int ___request_module(bool wait, char *module_param, const char *fmt, ...) ++{ ++ va_list args; ++ int ret; ++ ++ va_start(args, fmt); ++ ret = ____request_module(wait, module_param, fmt, args); ++ va_end(args); ++ ++ return ret; ++} ++ ++int __request_module(bool wait, const char *fmt, ...) ++{ ++ va_list args; ++ int ret; ++ ++#ifdef CONFIG_GRKERNSEC_MODHARDEN ++ if (current_uid()) { ++ char module_param[MODULE_NAME_LEN]; ++ ++ memset(module_param, 0, sizeof(module_param)); ++ ++ snprintf(module_param, sizeof(module_param) - 1, "grsec_modharden_normal%u_", current_uid()); ++ ++ va_start(args, fmt); ++ ret = ____request_module(wait, module_param, fmt, args); ++ va_end(args); ++ ++ return ret; ++ } ++#endif ++ ++ va_start(args, fmt); ++ ret = ____request_module(wait, NULL, fmt, args); ++ va_end(args); ++ ++ return ret; ++} ++ + EXPORT_SYMBOL(__request_module); + #endif /* CONFIG_MODULES */ + +@@ -267,7 +320,7 @@ static int wait_for_helper(void *data) + * + * Thus the __user pointer cast is valid here. + */ +- sys_wait4(pid, (int __user *)&ret, 0, NULL); ++ sys_wait4(pid, (int __force_user *)&ret, 0, NULL); + + /* + * If ret is 0, either ____call_usermodehelper failed and the +diff --git a/kernel/kprobes.c b/kernel/kprobes.c +index c62b854..cb67968 100644 +--- a/kernel/kprobes.c ++++ b/kernel/kprobes.c +@@ -185,7 +185,7 @@ static kprobe_opcode_t __kprobes *__get_insn_slot(struct kprobe_insn_cache *c) + * kernel image and loaded module images reside. This is required + * so x86_64 can correctly handle the %rip-relative fixups. + */ +- kip->insns = module_alloc(PAGE_SIZE); ++ kip->insns = module_alloc_exec(PAGE_SIZE); + if (!kip->insns) { + kfree(kip); + return NULL; +@@ -225,7 +225,7 @@ static int __kprobes collect_one_slot(struct kprobe_insn_page *kip, int idx) + */ + if (!list_is_singular(&kip->list)) { + list_del(&kip->list); +- module_free(NULL, kip->insns); ++ module_free_exec(NULL, kip->insns); + kfree(kip); + } + return 1; +@@ -1955,7 +1955,7 @@ static int __init init_kprobes(void) + { + int i, err = 0; + unsigned long offset = 0, size = 0; +- char *modname, namebuf[128]; ++ char *modname, namebuf[KSYM_NAME_LEN]; + const char *symbol_name; + void *addr; + struct kprobe_blackpoint *kb; +@@ -2081,7 +2081,7 @@ static int __kprobes show_kprobe_addr(struct seq_file *pi, void *v) + const char *sym = NULL; + unsigned int i = *(loff_t *) v; + unsigned long offset = 0; +- char *modname, namebuf[128]; ++ char *modname, namebuf[KSYM_NAME_LEN]; + + head = &kprobe_table[i]; + preempt_disable(); +diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c +index 4e316e1..5501eef 100644 +--- a/kernel/ksysfs.c ++++ b/kernel/ksysfs.c +@@ -47,6 +47,8 @@ static ssize_t uevent_helper_store(struct kobject *kobj, + { + if (count+1 > UEVENT_HELPER_PATH_LEN) + return -ENOENT; ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; + memcpy(uevent_helper, buf, count); + uevent_helper[count] = '\0'; + if (count && uevent_helper[count-1] == '\n') +diff --git a/kernel/lockdep.c b/kernel/lockdep.c +index ea9ee45..67ebc8f 100644 +--- a/kernel/lockdep.c ++++ b/kernel/lockdep.c +@@ -590,6 +590,10 @@ static int static_obj(void *obj) + end = (unsigned long) &_end, + addr = (unsigned long) obj; + ++#ifdef CONFIG_PAX_KERNEXEC ++ start = ktla_ktva(start); ++#endif ++ + /* + * static variable? + */ +@@ -730,6 +734,7 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force) + if (!static_obj(lock->key)) { + debug_locks_off(); + printk("INFO: trying to register non-static key.\n"); ++ printk("lock:%pS key:%pS.\n", lock, lock->key); + printk("the code is fine but needs lockdep annotation.\n"); + printk("turning off the locking correctness validator.\n"); + dump_stack(); +@@ -3042,7 +3047,7 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass, + if (!class) + return 0; + } +- atomic_inc((atomic_t *)&class->ops); ++ atomic_inc_unchecked((atomic_unchecked_t *)&class->ops); + if (very_verbose(class)) { + printk("\nacquire class [%p] %s", class->key, class->name); + if (class->name_version > 1) +diff --git a/kernel/lockdep_proc.c b/kernel/lockdep_proc.c +index 91c32a0..b2c71c5 100644 +--- a/kernel/lockdep_proc.c ++++ b/kernel/lockdep_proc.c +@@ -39,7 +39,7 @@ static void l_stop(struct seq_file *m, void *v) + + static void print_name(struct seq_file *m, struct lock_class *class) + { +- char str[128]; ++ char str[KSYM_NAME_LEN]; + const char *name = class->name; + + if (!name) { +diff --git a/kernel/module.c b/kernel/module.c +index 78ac6ec..e87db0e 100644 +--- a/kernel/module.c ++++ b/kernel/module.c +@@ -58,6 +58,7 @@ + #include <linux/jump_label.h> + #include <linux/pfn.h> + #include <linux/bsearch.h> ++#include <linux/grsecurity.h> + + #define CREATE_TRACE_POINTS + #include <trace/events/module.h> +@@ -114,7 +115,8 @@ static BLOCKING_NOTIFIER_HEAD(module_notify_list); + + /* Bounds of module allocation, for speeding __module_address. + * Protected by module_mutex. */ +-static unsigned long module_addr_min = -1UL, module_addr_max = 0; ++static unsigned long module_addr_min_rw = -1UL, module_addr_max_rw = 0; ++static unsigned long module_addr_min_rx = -1UL, module_addr_max_rx = 0; + + int register_module_notifier(struct notifier_block * nb) + { +@@ -278,7 +280,7 @@ bool each_symbol_section(bool (*fn)(const struct symsearch *arr, + return true; + + list_for_each_entry_rcu(mod, &modules, list) { +- struct symsearch arr[] = { ++ struct symsearch modarr[] = { + { mod->syms, mod->syms + mod->num_syms, mod->crcs, + NOT_GPL_ONLY, false }, + { mod->gpl_syms, mod->gpl_syms + mod->num_gpl_syms, +@@ -300,7 +302,7 @@ bool each_symbol_section(bool (*fn)(const struct symsearch *arr, + #endif + }; + +- if (each_symbol_in_section(arr, ARRAY_SIZE(arr), mod, fn, data)) ++ if (each_symbol_in_section(modarr, ARRAY_SIZE(modarr), mod, fn, data)) + return true; + } + return false; +@@ -432,7 +434,7 @@ static inline void __percpu *mod_percpu(struct module *mod) + static int percpu_modalloc(struct module *mod, + unsigned long size, unsigned long align) + { +- if (align > PAGE_SIZE) { ++ if (align-1 >= PAGE_SIZE) { + printk(KERN_WARNING "%s: per-cpu alignment %li > %li\n", + mod->name, align, PAGE_SIZE); + align = PAGE_SIZE; +@@ -1032,7 +1034,7 @@ struct module_attribute module_uevent = + static ssize_t show_coresize(struct module_attribute *mattr, + struct module_kobject *mk, char *buffer) + { +- return sprintf(buffer, "%u\n", mk->mod->core_size); ++ return sprintf(buffer, "%u\n", mk->mod->core_size_rx + mk->mod->core_size_rw); + } + + static struct module_attribute modinfo_coresize = +@@ -1041,7 +1043,7 @@ static struct module_attribute modinfo_coresize = + static ssize_t show_initsize(struct module_attribute *mattr, + struct module_kobject *mk, char *buffer) + { +- return sprintf(buffer, "%u\n", mk->mod->init_size); ++ return sprintf(buffer, "%u\n", mk->mod->init_size_rx + mk->mod->init_size_rw); + } + + static struct module_attribute modinfo_initsize = +@@ -1255,7 +1257,7 @@ resolve_symbol_wait(struct module *mod, + */ + #ifdef CONFIG_SYSFS + +-#ifdef CONFIG_KALLSYMS ++#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM) + static inline bool sect_empty(const Elf_Shdr *sect) + { + return !(sect->sh_flags & SHF_ALLOC) || sect->sh_size == 0; +@@ -1721,21 +1723,21 @@ static void set_section_ro_nx(void *base, + + static void unset_module_core_ro_nx(struct module *mod) + { +- set_page_attributes(mod->module_core + mod->core_text_size, +- mod->module_core + mod->core_size, ++ set_page_attributes(mod->module_core_rw, ++ mod->module_core_rw + mod->core_size_rw, + set_memory_x); +- set_page_attributes(mod->module_core, +- mod->module_core + mod->core_ro_size, ++ set_page_attributes(mod->module_core_rx, ++ mod->module_core_rx + mod->core_size_rx, + set_memory_rw); + } + + static void unset_module_init_ro_nx(struct module *mod) + { +- set_page_attributes(mod->module_init + mod->init_text_size, +- mod->module_init + mod->init_size, ++ set_page_attributes(mod->module_init_rw, ++ mod->module_init_rw + mod->init_size_rw, + set_memory_x); +- set_page_attributes(mod->module_init, +- mod->module_init + mod->init_ro_size, ++ set_page_attributes(mod->module_init_rx, ++ mod->module_init_rx + mod->init_size_rx, + set_memory_rw); + } + +@@ -1746,14 +1748,14 @@ void set_all_modules_text_rw(void) + + mutex_lock(&module_mutex); + list_for_each_entry_rcu(mod, &modules, list) { +- if ((mod->module_core) && (mod->core_text_size)) { +- set_page_attributes(mod->module_core, +- mod->module_core + mod->core_text_size, ++ if ((mod->module_core_rx) && (mod->core_size_rx)) { ++ set_page_attributes(mod->module_core_rx, ++ mod->module_core_rx + mod->core_size_rx, + set_memory_rw); + } +- if ((mod->module_init) && (mod->init_text_size)) { +- set_page_attributes(mod->module_init, +- mod->module_init + mod->init_text_size, ++ if ((mod->module_init_rx) && (mod->init_size_rx)) { ++ set_page_attributes(mod->module_init_rx, ++ mod->module_init_rx + mod->init_size_rx, + set_memory_rw); + } + } +@@ -1767,14 +1769,14 @@ void set_all_modules_text_ro(void) + + mutex_lock(&module_mutex); + list_for_each_entry_rcu(mod, &modules, list) { +- if ((mod->module_core) && (mod->core_text_size)) { +- set_page_attributes(mod->module_core, +- mod->module_core + mod->core_text_size, ++ if ((mod->module_core_rx) && (mod->core_size_rx)) { ++ set_page_attributes(mod->module_core_rx, ++ mod->module_core_rx + mod->core_size_rx, + set_memory_ro); + } +- if ((mod->module_init) && (mod->init_text_size)) { +- set_page_attributes(mod->module_init, +- mod->module_init + mod->init_text_size, ++ if ((mod->module_init_rx) && (mod->init_size_rx)) { ++ set_page_attributes(mod->module_init_rx, ++ mod->module_init_rx + mod->init_size_rx, + set_memory_ro); + } + } +@@ -1820,16 +1822,19 @@ static void free_module(struct module *mod) + + /* This may be NULL, but that's OK */ + unset_module_init_ro_nx(mod); +- module_free(mod, mod->module_init); ++ module_free(mod, mod->module_init_rw); ++ module_free_exec(mod, mod->module_init_rx); + kfree(mod->args); + percpu_modfree(mod); + + /* Free lock-classes: */ +- lockdep_free_key_range(mod->module_core, mod->core_size); ++ lockdep_free_key_range(mod->module_core_rx, mod->core_size_rx); ++ lockdep_free_key_range(mod->module_core_rw, mod->core_size_rw); + + /* Finally, free the core (containing the module structure) */ + unset_module_core_ro_nx(mod); +- module_free(mod, mod->module_core); ++ module_free_exec(mod, mod->module_core_rx); ++ module_free(mod, mod->module_core_rw); + + #ifdef CONFIG_MPU + update_protections(current->mm); +@@ -1899,9 +1904,31 @@ static int simplify_symbols(struct module *mod, const struct load_info *info) + int ret = 0; + const struct kernel_symbol *ksym; + ++#ifdef CONFIG_GRKERNSEC_MODHARDEN ++ int is_fs_load = 0; ++ int register_filesystem_found = 0; ++ char *p; ++ ++ p = strstr(mod->args, "grsec_modharden_fs"); ++ if (p) { ++ char *endptr = p + strlen("grsec_modharden_fs"); ++ /* copy \0 as well */ ++ memmove(p, endptr, strlen(mod->args) - (unsigned int)(endptr - mod->args) + 1); ++ is_fs_load = 1; ++ } ++#endif ++ + for (i = 1; i < symsec->sh_size / sizeof(Elf_Sym); i++) { + const char *name = info->strtab + sym[i].st_name; + ++#ifdef CONFIG_GRKERNSEC_MODHARDEN ++ /* it's a real shame this will never get ripped and copied ++ upstream! ;( ++ */ ++ if (is_fs_load && !strcmp(name, "register_filesystem")) ++ register_filesystem_found = 1; ++#endif ++ + switch (sym[i].st_shndx) { + case SHN_COMMON: + /* We compiled with -fno-common. These are not +@@ -1922,7 +1949,9 @@ static int simplify_symbols(struct module *mod, const struct load_info *info) + ksym = resolve_symbol_wait(mod, info, name); + /* Ok if resolved. */ + if (ksym && !IS_ERR(ksym)) { ++ pax_open_kernel(); + sym[i].st_value = ksym->value; ++ pax_close_kernel(); + break; + } + +@@ -1941,11 +1970,20 @@ static int simplify_symbols(struct module *mod, const struct load_info *info) + secbase = (unsigned long)mod_percpu(mod); + else + secbase = info->sechdrs[sym[i].st_shndx].sh_addr; ++ pax_open_kernel(); + sym[i].st_value += secbase; ++ pax_close_kernel(); + break; + } + } + ++#ifdef CONFIG_GRKERNSEC_MODHARDEN ++ if (is_fs_load && !register_filesystem_found) { ++ printk(KERN_ALERT "grsec: Denied attempt to load non-fs module %.64s through mount\n", mod->name); ++ ret = -EPERM; ++ } ++#endif ++ + return ret; + } + +@@ -2049,22 +2087,12 @@ static void layout_sections(struct module *mod, struct load_info *info) + || s->sh_entsize != ~0UL + || strstarts(sname, ".init")) + continue; +- s->sh_entsize = get_offset(mod, &mod->core_size, s, i); ++ if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC)) ++ s->sh_entsize = get_offset(mod, &mod->core_size_rw, s, i); ++ else ++ s->sh_entsize = get_offset(mod, &mod->core_size_rx, s, i); + pr_debug("\t%s\n", sname); + } +- switch (m) { +- case 0: /* executable */ +- mod->core_size = debug_align(mod->core_size); +- mod->core_text_size = mod->core_size; +- break; +- case 1: /* RO: text and ro-data */ +- mod->core_size = debug_align(mod->core_size); +- mod->core_ro_size = mod->core_size; +- break; +- case 3: /* whole core */ +- mod->core_size = debug_align(mod->core_size); +- break; +- } + } + + pr_debug("Init section allocation order:\n"); +@@ -2078,23 +2106,13 @@ static void layout_sections(struct module *mod, struct load_info *info) + || s->sh_entsize != ~0UL + || !strstarts(sname, ".init")) + continue; +- s->sh_entsize = (get_offset(mod, &mod->init_size, s, i) +- | INIT_OFFSET_MASK); ++ if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC)) ++ s->sh_entsize = get_offset(mod, &mod->init_size_rw, s, i); ++ else ++ s->sh_entsize = get_offset(mod, &mod->init_size_rx, s, i); ++ s->sh_entsize |= INIT_OFFSET_MASK; + pr_debug("\t%s\n", sname); + } +- switch (m) { +- case 0: /* executable */ +- mod->init_size = debug_align(mod->init_size); +- mod->init_text_size = mod->init_size; +- break; +- case 1: /* RO: text and ro-data */ +- mod->init_size = debug_align(mod->init_size); +- mod->init_ro_size = mod->init_size; +- break; +- case 3: /* whole init */ +- mod->init_size = debug_align(mod->init_size); +- break; +- } + } + } + +@@ -2266,7 +2284,7 @@ static void layout_symtab(struct module *mod, struct load_info *info) + + /* Put symbol section at end of init part of module. */ + symsect->sh_flags |= SHF_ALLOC; +- symsect->sh_entsize = get_offset(mod, &mod->init_size, symsect, ++ symsect->sh_entsize = get_offset(mod, &mod->init_size_rx, symsect, + info->index.sym) | INIT_OFFSET_MASK; + pr_debug("\t%s\n", info->secstrings + symsect->sh_name); + +@@ -2281,13 +2299,13 @@ static void layout_symtab(struct module *mod, struct load_info *info) + } + + /* Append room for core symbols at end of core part. */ +- info->symoffs = ALIGN(mod->core_size, symsect->sh_addralign ?: 1); +- info->stroffs = mod->core_size = info->symoffs + ndst * sizeof(Elf_Sym); +- mod->core_size += strtab_size; ++ info->symoffs = ALIGN(mod->core_size_rx, symsect->sh_addralign ?: 1); ++ info->stroffs = mod->core_size_rx = info->symoffs + ndst * sizeof(Elf_Sym); ++ mod->core_size_rx += strtab_size; + + /* Put string table section at end of init part of module. */ + strsect->sh_flags |= SHF_ALLOC; +- strsect->sh_entsize = get_offset(mod, &mod->init_size, strsect, ++ strsect->sh_entsize = get_offset(mod, &mod->init_size_rx, strsect, + info->index.str) | INIT_OFFSET_MASK; + pr_debug("\t%s\n", info->secstrings + strsect->sh_name); + } +@@ -2305,12 +2323,14 @@ static void add_kallsyms(struct module *mod, const struct load_info *info) + /* Make sure we get permanent strtab: don't use info->strtab. */ + mod->strtab = (void *)info->sechdrs[info->index.str].sh_addr; + ++ pax_open_kernel(); ++ + /* Set types up while we still have access to sections. */ + for (i = 0; i < mod->num_symtab; i++) + mod->symtab[i].st_info = elf_type(&mod->symtab[i], info); + +- mod->core_symtab = dst = mod->module_core + info->symoffs; +- mod->core_strtab = s = mod->module_core + info->stroffs; ++ mod->core_symtab = dst = mod->module_core_rx + info->symoffs; ++ mod->core_strtab = s = mod->module_core_rx + info->stroffs; + src = mod->symtab; + *dst = *src; + *s++ = 0; +@@ -2323,6 +2343,8 @@ static void add_kallsyms(struct module *mod, const struct load_info *info) + s += strlcpy(s, &mod->strtab[src->st_name], KSYM_NAME_LEN) + 1; + } + mod->core_num_syms = ndst; ++ ++ pax_close_kernel(); + } + #else + static inline void layout_symtab(struct module *mod, struct load_info *info) +@@ -2356,17 +2378,33 @@ void * __weak module_alloc(unsigned long size) + return size == 0 ? NULL : vmalloc_exec(size); + } + +-static void *module_alloc_update_bounds(unsigned long size) ++static void *module_alloc_update_bounds_rw(unsigned long size) + { + void *ret = module_alloc(size); + + if (ret) { + mutex_lock(&module_mutex); + /* Update module bounds. */ +- if ((unsigned long)ret < module_addr_min) +- module_addr_min = (unsigned long)ret; +- if ((unsigned long)ret + size > module_addr_max) +- module_addr_max = (unsigned long)ret + size; ++ if ((unsigned long)ret < module_addr_min_rw) ++ module_addr_min_rw = (unsigned long)ret; ++ if ((unsigned long)ret + size > module_addr_max_rw) ++ module_addr_max_rw = (unsigned long)ret + size; ++ mutex_unlock(&module_mutex); ++ } ++ return ret; ++} ++ ++static void *module_alloc_update_bounds_rx(unsigned long size) ++{ ++ void *ret = module_alloc_exec(size); ++ ++ if (ret) { ++ mutex_lock(&module_mutex); ++ /* Update module bounds. */ ++ if ((unsigned long)ret < module_addr_min_rx) ++ module_addr_min_rx = (unsigned long)ret; ++ if ((unsigned long)ret + size > module_addr_max_rx) ++ module_addr_max_rx = (unsigned long)ret + size; + mutex_unlock(&module_mutex); + } + return ret; +@@ -2543,8 +2581,14 @@ static struct module *setup_load_info(struct load_info *info) + static int check_modinfo(struct module *mod, struct load_info *info) + { + const char *modmagic = get_modinfo(info, "vermagic"); ++ const char *license = get_modinfo(info, "license"); + int err; + ++#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR ++ if (!license || !license_is_gpl_compatible(license)) ++ return -ENOEXEC; ++#endif ++ + /* This is allowed: modprobe --force will invalidate it. */ + if (!modmagic) { + err = try_to_force_load(mod, "bad vermagic"); +@@ -2567,7 +2611,7 @@ static int check_modinfo(struct module *mod, struct load_info *info) + } + + /* Set up license info based on the info section */ +- set_license(mod, get_modinfo(info, "license")); ++ set_license(mod, license); + + return 0; + } +@@ -2661,7 +2705,7 @@ static int move_module(struct module *mod, struct load_info *info) + void *ptr; + + /* Do the allocs. */ +- ptr = module_alloc_update_bounds(mod->core_size); ++ ptr = module_alloc_update_bounds_rw(mod->core_size_rw); + /* + * The pointer to this block is stored in the module structure + * which is inside the block. Just mark it as not being a +@@ -2671,23 +2715,50 @@ static int move_module(struct module *mod, struct load_info *info) + if (!ptr) + return -ENOMEM; + +- memset(ptr, 0, mod->core_size); +- mod->module_core = ptr; ++ memset(ptr, 0, mod->core_size_rw); ++ mod->module_core_rw = ptr; + +- ptr = module_alloc_update_bounds(mod->init_size); ++ ptr = module_alloc_update_bounds_rw(mod->init_size_rw); + /* + * The pointer to this block is stored in the module structure + * which is inside the block. This block doesn't need to be + * scanned as it contains data and code that will be freed + * after the module is initialized. + */ +- kmemleak_ignore(ptr); +- if (!ptr && mod->init_size) { +- module_free(mod, mod->module_core); ++ kmemleak_not_leak(ptr); ++ if (!ptr && mod->init_size_rw) { ++ module_free(mod, mod->module_core_rw); + return -ENOMEM; + } +- memset(ptr, 0, mod->init_size); +- mod->module_init = ptr; ++ memset(ptr, 0, mod->init_size_rw); ++ mod->module_init_rw = ptr; ++ ++ ptr = module_alloc_update_bounds_rx(mod->core_size_rx); ++ kmemleak_not_leak(ptr); ++ if (!ptr) { ++ module_free(mod, mod->module_init_rw); ++ module_free(mod, mod->module_core_rw); ++ return -ENOMEM; ++ } ++ ++ pax_open_kernel(); ++ memset(ptr, 0, mod->core_size_rx); ++ pax_close_kernel(); ++ mod->module_core_rx = ptr; ++ ++ ptr = module_alloc_update_bounds_rx(mod->init_size_rx); ++ kmemleak_not_leak(ptr); ++ if (!ptr && mod->init_size_rx) { ++ module_free_exec(mod, mod->module_core_rx); ++ module_free(mod, mod->module_init_rw); ++ module_free(mod, mod->module_core_rw); ++ return -ENOMEM; ++ } ++ ++ pax_open_kernel(); ++ memset(ptr, 0, mod->init_size_rx); ++ pax_close_kernel(); ++ mod->module_init_rx = ptr; + + /* Transfer each section which specifies SHF_ALLOC */ + pr_debug("final section addresses:\n"); +@@ -2698,16 +2769,45 @@ static int move_module(struct module *mod, struct load_info *info) + if (!(shdr->sh_flags & SHF_ALLOC)) + continue; + +- if (shdr->sh_entsize & INIT_OFFSET_MASK) +- dest = mod->module_init +- + (shdr->sh_entsize & ~INIT_OFFSET_MASK); +- else +- dest = mod->module_core + shdr->sh_entsize; ++ if (shdr->sh_entsize & INIT_OFFSET_MASK) { ++ if ((shdr->sh_flags & SHF_WRITE) || !(shdr->sh_flags & SHF_ALLOC)) ++ dest = mod->module_init_rw ++ + (shdr->sh_entsize & ~INIT_OFFSET_MASK); ++ else ++ dest = mod->module_init_rx ++ + (shdr->sh_entsize & ~INIT_OFFSET_MASK); ++ } else { ++ if ((shdr->sh_flags & SHF_WRITE) || !(shdr->sh_flags & SHF_ALLOC)) ++ dest = mod->module_core_rw + shdr->sh_entsize; ++ else ++ dest = mod->module_core_rx + shdr->sh_entsize; ++ } ++ ++ if (shdr->sh_type != SHT_NOBITS) { ++ ++#ifdef CONFIG_PAX_KERNEXEC ++#ifdef CONFIG_X86_64 ++ if ((shdr->sh_flags & SHF_WRITE) && (shdr->sh_flags & SHF_EXECINSTR)) ++ set_memory_x((unsigned long)dest, (shdr->sh_size + PAGE_SIZE) >> PAGE_SHIFT); ++#endif ++ if (!(shdr->sh_flags & SHF_WRITE) && (shdr->sh_flags & SHF_ALLOC)) { ++ pax_open_kernel(); ++ memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size); ++ pax_close_kernel(); ++ } else ++#endif + +- if (shdr->sh_type != SHT_NOBITS) + memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size); ++ } + /* Update sh_addr to point to copy in image. */ +- shdr->sh_addr = (unsigned long)dest; ++ ++#ifdef CONFIG_PAX_KERNEXEC ++ if (shdr->sh_flags & SHF_EXECINSTR) ++ shdr->sh_addr = ktva_ktla((unsigned long)dest); ++ else ++#endif ++ ++ shdr->sh_addr = (unsigned long)dest; + pr_debug("\t0x%lx %s\n", + (long)shdr->sh_addr, info->secstrings + shdr->sh_name); + } +@@ -2758,12 +2858,12 @@ static void flush_module_icache(const struct module *mod) + * Do it before processing of module parameters, so the module + * can provide parameter accessor functions of its own. + */ +- if (mod->module_init) +- flush_icache_range((unsigned long)mod->module_init, +- (unsigned long)mod->module_init +- + mod->init_size); +- flush_icache_range((unsigned long)mod->module_core, +- (unsigned long)mod->module_core + mod->core_size); ++ if (mod->module_init_rx) ++ flush_icache_range((unsigned long)mod->module_init_rx, ++ (unsigned long)mod->module_init_rx ++ + mod->init_size_rx); ++ flush_icache_range((unsigned long)mod->module_core_rx, ++ (unsigned long)mod->module_core_rx + mod->core_size_rx); + + set_fs(old_fs); + } +@@ -2833,8 +2933,10 @@ out: + static void module_deallocate(struct module *mod, struct load_info *info) + { + percpu_modfree(mod); +- module_free(mod, mod->module_init); +- module_free(mod, mod->module_core); ++ module_free_exec(mod, mod->module_init_rx); ++ module_free_exec(mod, mod->module_core_rx); ++ module_free(mod, mod->module_init_rw); ++ module_free(mod, mod->module_core_rw); + } + + int __weak module_finalize(const Elf_Ehdr *hdr, +@@ -2898,9 +3000,38 @@ static struct module *load_module(void __user *umod, + if (err) + goto free_unload; + ++ /* Now copy in args */ ++ mod->args = strndup_user(uargs, ~0UL >> 1); ++ if (IS_ERR(mod->args)) { ++ err = PTR_ERR(mod->args); ++ goto free_unload; ++ } ++ + /* Set up MODINFO_ATTR fields */ + setup_modinfo(mod, &info); + ++#ifdef CONFIG_GRKERNSEC_MODHARDEN ++ { ++ char *p, *p2; ++ ++ if (strstr(mod->args, "grsec_modharden_netdev")) { ++ printk(KERN_ALERT "grsec: denied auto-loading kernel module for a network device with CAP_SYS_MODULE (deprecated). Use CAP_NET_ADMIN and alias netdev-%.64s instead.", mod->name); ++ err = -EPERM; ++ goto free_modinfo; ++ } else if ((p = strstr(mod->args, "grsec_modharden_normal"))) { ++ p += strlen("grsec_modharden_normal"); ++ p2 = strstr(p, "_"); ++ if (p2) { ++ *p2 = '\0'; ++ printk(KERN_ALERT "grsec: denied kernel module auto-load of %.64s by uid %.9s\n", mod->name, p); ++ *p2 = '_'; ++ } ++ err = -EPERM; ++ goto free_modinfo; ++ } ++ } ++#endif ++ + /* Fix up syms, so that st_value is a pointer to location. */ + err = simplify_symbols(mod, &info); + if (err < 0) +@@ -2916,13 +3047,6 @@ static struct module *load_module(void __user *umod, + + flush_module_icache(mod); + +- /* Now copy in args */ +- mod->args = strndup_user(uargs, ~0UL >> 1); +- if (IS_ERR(mod->args)) { +- err = PTR_ERR(mod->args); +- goto free_arch_cleanup; +- } +- + /* Mark state as coming so strong_try_module_get() ignores us. */ + mod->state = MODULE_STATE_COMING; + +@@ -2980,11 +3104,10 @@ static struct module *load_module(void __user *umod, + unlock: + mutex_unlock(&module_mutex); + synchronize_sched(); +- kfree(mod->args); +- free_arch_cleanup: + module_arch_cleanup(mod); + free_modinfo: + free_modinfo(mod); ++ kfree(mod->args); + free_unload: + module_unload_free(mod); + free_module: +@@ -3025,16 +3148,16 @@ SYSCALL_DEFINE3(init_module, void __user *, umod, + MODULE_STATE_COMING, mod); + + /* Set RO and NX regions for core */ +- set_section_ro_nx(mod->module_core, +- mod->core_text_size, +- mod->core_ro_size, +- mod->core_size); ++ set_section_ro_nx(mod->module_core_rx, ++ mod->core_size_rx, ++ mod->core_size_rx, ++ mod->core_size_rx); + + /* Set RO and NX regions for init */ +- set_section_ro_nx(mod->module_init, +- mod->init_text_size, +- mod->init_ro_size, +- mod->init_size); ++ set_section_ro_nx(mod->module_init_rx, ++ mod->init_size_rx, ++ mod->init_size_rx, ++ mod->init_size_rx); + + do_mod_ctors(mod); + /* Start the module */ +@@ -3080,11 +3203,12 @@ SYSCALL_DEFINE3(init_module, void __user *, umod, + mod->strtab = mod->core_strtab; + #endif + unset_module_init_ro_nx(mod); +- module_free(mod, mod->module_init); +- mod->module_init = NULL; +- mod->init_size = 0; +- mod->init_ro_size = 0; +- mod->init_text_size = 0; ++ module_free(mod, mod->module_init_rw); ++ module_free_exec(mod, mod->module_init_rx); ++ mod->module_init_rw = NULL; ++ mod->module_init_rx = NULL; ++ mod->init_size_rw = 0; ++ mod->init_size_rx = 0; + mutex_unlock(&module_mutex); + + return 0; +@@ -3115,10 +3239,16 @@ static const char *get_ksymbol(struct module *mod, + unsigned long nextval; + + /* At worse, next value is at end of module */ +- if (within_module_init(addr, mod)) +- nextval = (unsigned long)mod->module_init+mod->init_text_size; ++ if (within_module_init_rx(addr, mod)) ++ nextval = (unsigned long)mod->module_init_rx+mod->init_size_rx; ++ else if (within_module_init_rw(addr, mod)) ++ nextval = (unsigned long)mod->module_init_rw+mod->init_size_rw; ++ else if (within_module_core_rx(addr, mod)) ++ nextval = (unsigned long)mod->module_core_rx+mod->core_size_rx; ++ else if (within_module_core_rw(addr, mod)) ++ nextval = (unsigned long)mod->module_core_rw+mod->core_size_rw; + else +- nextval = (unsigned long)mod->module_core+mod->core_text_size; ++ return NULL; + + /* Scan for closest preceding symbol, and next symbol. (ELF + starts real symbols at 1). */ +@@ -3353,7 +3483,7 @@ static int m_show(struct seq_file *m, void *p) + char buf[8]; + + seq_printf(m, "%s %u", +- mod->name, mod->init_size + mod->core_size); ++ mod->name, mod->init_size_rx + mod->init_size_rw + mod->core_size_rx + mod->core_size_rw); + print_unload_info(m, mod); + + /* Informative for users. */ +@@ -3362,7 +3492,7 @@ static int m_show(struct seq_file *m, void *p) + mod->state == MODULE_STATE_COMING ? "Loading": + "Live"); + /* Used by oprofile and other similar tools. */ +- seq_printf(m, " 0x%pK", mod->module_core); ++ seq_printf(m, " 0x%pK 0x%pK", mod->module_core_rx, mod->module_core_rw); + + /* Taints info */ + if (mod->taints) +@@ -3398,7 +3528,17 @@ static const struct file_operations proc_modules_operations = { + + static int __init proc_modules_init(void) + { ++#ifndef CONFIG_GRKERNSEC_HIDESYM ++#ifdef CONFIG_GRKERNSEC_PROC_USER ++ proc_create("modules", S_IRUSR, NULL, &proc_modules_operations); ++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ proc_create("modules", S_IRUSR | S_IRGRP, NULL, &proc_modules_operations); ++#else + proc_create("modules", 0, NULL, &proc_modules_operations); ++#endif ++#else ++ proc_create("modules", S_IRUSR, NULL, &proc_modules_operations); ++#endif + return 0; + } + module_init(proc_modules_init); +@@ -3457,12 +3597,12 @@ struct module *__module_address(unsigned long addr) + { + struct module *mod; + +- if (addr < module_addr_min || addr > module_addr_max) ++ if ((addr < module_addr_min_rx || addr > module_addr_max_rx) && ++ (addr < module_addr_min_rw || addr > module_addr_max_rw)) + return NULL; + + list_for_each_entry_rcu(mod, &modules, list) +- if (within_module_core(addr, mod) +- || within_module_init(addr, mod)) ++ if (within_module_init(addr, mod) || within_module_core(addr, mod)) + return mod; + return NULL; + } +@@ -3496,11 +3636,20 @@ bool is_module_text_address(unsigned long addr) + */ + struct module *__module_text_address(unsigned long addr) + { +- struct module *mod = __module_address(addr); ++ struct module *mod; ++ ++#ifdef CONFIG_X86_32 ++ addr = ktla_ktva(addr); ++#endif ++ ++ if (addr < module_addr_min_rx || addr > module_addr_max_rx) ++ return NULL; ++ ++ mod = __module_address(addr); ++ + if (mod) { + /* Make sure it's within the text section. */ +- if (!within(addr, mod->module_init, mod->init_text_size) +- && !within(addr, mod->module_core, mod->core_text_size)) ++ if (!within_module_init_rx(addr, mod) && !within_module_core_rx(addr, mod)) + mod = NULL; + } + return mod; +diff --git a/kernel/mutex-debug.c b/kernel/mutex-debug.c +index 7e3443f..b2a1e6b 100644 +--- a/kernel/mutex-debug.c ++++ b/kernel/mutex-debug.c +@@ -49,21 +49,21 @@ void debug_mutex_free_waiter(struct mutex_waiter *waiter) + } + + void debug_mutex_add_waiter(struct mutex *lock, struct mutex_waiter *waiter, +- struct thread_info *ti) ++ struct task_struct *task) + { + SMP_DEBUG_LOCKS_WARN_ON(!spin_is_locked(&lock->wait_lock)); + + /* Mark the current thread as blocked on the lock: */ +- ti->task->blocked_on = waiter; ++ task->blocked_on = waiter; + } + + void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter, +- struct thread_info *ti) ++ struct task_struct *task) + { + DEBUG_LOCKS_WARN_ON(list_empty(&waiter->list)); +- DEBUG_LOCKS_WARN_ON(waiter->task != ti->task); +- DEBUG_LOCKS_WARN_ON(ti->task->blocked_on != waiter); +- ti->task->blocked_on = NULL; ++ DEBUG_LOCKS_WARN_ON(waiter->task != task); ++ DEBUG_LOCKS_WARN_ON(task->blocked_on != waiter); ++ task->blocked_on = NULL; + + list_del_init(&waiter->list); + waiter->task = NULL; +diff --git a/kernel/mutex-debug.h b/kernel/mutex-debug.h +index 0799fd3..d06ae3b 100644 +--- a/kernel/mutex-debug.h ++++ b/kernel/mutex-debug.h +@@ -20,9 +20,9 @@ extern void debug_mutex_wake_waiter(struct mutex *lock, + extern void debug_mutex_free_waiter(struct mutex_waiter *waiter); + extern void debug_mutex_add_waiter(struct mutex *lock, + struct mutex_waiter *waiter, +- struct thread_info *ti); ++ struct task_struct *task); + extern void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter, +- struct thread_info *ti); ++ struct task_struct *task); + extern void debug_mutex_unlock(struct mutex *lock); + extern void debug_mutex_init(struct mutex *lock, const char *name, + struct lock_class_key *key); +diff --git a/kernel/mutex.c b/kernel/mutex.c +index a307cc9..27fd2e9 100644 +--- a/kernel/mutex.c ++++ b/kernel/mutex.c +@@ -198,7 +198,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass, + spin_lock_mutex(&lock->wait_lock, flags); + + debug_mutex_lock_common(lock, &waiter); +- debug_mutex_add_waiter(lock, &waiter, task_thread_info(task)); ++ debug_mutex_add_waiter(lock, &waiter, task); + + /* add waiting tasks to the end of the waitqueue (FIFO): */ + list_add_tail(&waiter.list, &lock->wait_list); +@@ -227,8 +227,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass, + * TASK_UNINTERRUPTIBLE case.) + */ + if (unlikely(signal_pending_state(state, task))) { +- mutex_remove_waiter(lock, &waiter, +- task_thread_info(task)); ++ mutex_remove_waiter(lock, &waiter, task); + mutex_release(&lock->dep_map, 1, ip); + spin_unlock_mutex(&lock->wait_lock, flags); + +@@ -247,7 +246,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass, + done: + lock_acquired(&lock->dep_map, ip); + /* got the lock - rejoice! */ +- mutex_remove_waiter(lock, &waiter, current_thread_info()); ++ mutex_remove_waiter(lock, &waiter, task); + mutex_set_owner(lock); + + /* set it to 0 if there are no waiters left: */ +diff --git a/kernel/panic.c b/kernel/panic.c +index 9ed023b..e49543e 100644 +--- a/kernel/panic.c ++++ b/kernel/panic.c +@@ -402,7 +402,7 @@ static void warn_slowpath_common(const char *file, int line, void *caller, + const char *board; + + printk(KERN_WARNING "------------[ cut here ]------------\n"); +- printk(KERN_WARNING "WARNING: at %s:%d %pS()\n", file, line, caller); ++ printk(KERN_WARNING "WARNING: at %s:%d %pA()\n", file, line, caller); + board = dmi_get_system_info(DMI_PRODUCT_NAME); + if (board) + printk(KERN_WARNING "Hardware name: %s\n", board); +@@ -457,7 +457,8 @@ EXPORT_SYMBOL(warn_slowpath_null); + */ + void __stack_chk_fail(void) + { +- panic("stack-protector: Kernel stack is corrupted in: %p\n", ++ dump_stack(); ++ panic("stack-protector: Kernel stack is corrupted in: %pA\n", + __builtin_return_address(0)); + } + EXPORT_SYMBOL(__stack_chk_fail); +diff --git a/kernel/pid.c b/kernel/pid.c +index 9f08dfa..6765c40 100644 +--- a/kernel/pid.c ++++ b/kernel/pid.c +@@ -33,6 +33,7 @@ + #include <linux/rculist.h> + #include <linux/bootmem.h> + #include <linux/hash.h> ++#include <linux/security.h> + #include <linux/pid_namespace.h> + #include <linux/init_task.h> + #include <linux/syscalls.h> +@@ -45,7 +46,7 @@ struct pid init_struct_pid = INIT_STRUCT_PID; + + int pid_max = PID_MAX_DEFAULT; + +-#define RESERVED_PIDS 300 ++#define RESERVED_PIDS 500 + + int pid_max_min = RESERVED_PIDS + 1; + int pid_max_max = PID_MAX_LIMIT; +@@ -420,10 +421,18 @@ EXPORT_SYMBOL(pid_task); + */ + struct task_struct *find_task_by_pid_ns(pid_t nr, struct pid_namespace *ns) + { ++ struct task_struct *task; ++ + rcu_lockdep_assert(rcu_read_lock_held(), + "find_task_by_pid_ns() needs rcu_read_lock()" + " protection"); +- return pid_task(find_pid_ns(nr, ns), PIDTYPE_PID); ++ ++ task = pid_task(find_pid_ns(nr, ns), PIDTYPE_PID); ++ ++ if (gr_pid_is_chrooted(task)) ++ return NULL; ++ ++ return task; + } + + struct task_struct *find_task_by_vpid(pid_t vnr) +@@ -431,6 +440,14 @@ struct task_struct *find_task_by_vpid(pid_t vnr) + return find_task_by_pid_ns(vnr, current->nsproxy->pid_ns); + } + ++struct task_struct *find_task_by_vpid_unrestricted(pid_t vnr) ++{ ++ rcu_lockdep_assert(rcu_read_lock_held(), ++ "find_task_by_pid_ns() needs rcu_read_lock()" ++ " protection"); ++ return pid_task(find_pid_ns(vnr, current->nsproxy->pid_ns), PIDTYPE_PID); ++} ++ + struct pid *get_task_pid(struct task_struct *task, enum pid_type type) + { + struct pid *pid; +diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c +index 125cb67..a4d1c30 100644 +--- a/kernel/posix-cpu-timers.c ++++ b/kernel/posix-cpu-timers.c +@@ -6,6 +6,7 @@ + #include <linux/posix-timers.h> + #include <linux/errno.h> + #include <linux/math64.h> ++#include <linux/security.h> + #include <asm/uaccess.h> + #include <linux/kernel_stat.h> + #include <trace/events/timer.h> +@@ -1578,14 +1579,14 @@ struct k_clock clock_posix_cpu = { + + static __init int init_posix_cpu_timers(void) + { +- struct k_clock process = { ++ static struct k_clock process = { + .clock_getres = process_cpu_clock_getres, + .clock_get = process_cpu_clock_get, + .timer_create = process_cpu_timer_create, + .nsleep = process_cpu_nsleep, + .nsleep_restart = process_cpu_nsleep_restart, + }; +- struct k_clock thread = { ++ static struct k_clock thread = { + .clock_getres = thread_cpu_clock_getres, + .clock_get = thread_cpu_clock_get, + .timer_create = thread_cpu_timer_create, +diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c +index 69185ae..cc2847a 100644 +--- a/kernel/posix-timers.c ++++ b/kernel/posix-timers.c +@@ -43,6 +43,7 @@ + #include <linux/idr.h> + #include <linux/posix-clock.h> + #include <linux/posix-timers.h> ++#include <linux/grsecurity.h> + #include <linux/syscalls.h> + #include <linux/wait.h> + #include <linux/workqueue.h> +@@ -129,7 +130,7 @@ static DEFINE_SPINLOCK(idr_lock); + * which we beg off on and pass to do_sys_settimeofday(). + */ + +-static struct k_clock posix_clocks[MAX_CLOCKS]; ++static struct k_clock *posix_clocks[MAX_CLOCKS]; + + /* + * These ones are defined below. +@@ -227,7 +228,7 @@ static int posix_get_boottime(const clockid_t which_clock, struct timespec *tp) + */ + static __init int init_posix_timers(void) + { +- struct k_clock clock_realtime = { ++ static struct k_clock clock_realtime = { + .clock_getres = hrtimer_get_res, + .clock_get = posix_clock_realtime_get, + .clock_set = posix_clock_realtime_set, +@@ -239,7 +240,7 @@ static __init int init_posix_timers(void) + .timer_get = common_timer_get, + .timer_del = common_timer_del, + }; +- struct k_clock clock_monotonic = { ++ static struct k_clock clock_monotonic = { + .clock_getres = hrtimer_get_res, + .clock_get = posix_ktime_get_ts, + .nsleep = common_nsleep, +@@ -249,19 +250,19 @@ static __init int init_posix_timers(void) + .timer_get = common_timer_get, + .timer_del = common_timer_del, + }; +- struct k_clock clock_monotonic_raw = { ++ static struct k_clock clock_monotonic_raw = { + .clock_getres = hrtimer_get_res, + .clock_get = posix_get_monotonic_raw, + }; +- struct k_clock clock_realtime_coarse = { ++ static struct k_clock clock_realtime_coarse = { + .clock_getres = posix_get_coarse_res, + .clock_get = posix_get_realtime_coarse, + }; +- struct k_clock clock_monotonic_coarse = { ++ static struct k_clock clock_monotonic_coarse = { + .clock_getres = posix_get_coarse_res, + .clock_get = posix_get_monotonic_coarse, + }; +- struct k_clock clock_boottime = { ++ static struct k_clock clock_boottime = { + .clock_getres = hrtimer_get_res, + .clock_get = posix_get_boottime, + .nsleep = common_nsleep, +@@ -473,7 +474,7 @@ void posix_timers_register_clock(const clockid_t clock_id, + return; + } + +- posix_clocks[clock_id] = *new_clock; ++ posix_clocks[clock_id] = new_clock; + } + EXPORT_SYMBOL_GPL(posix_timers_register_clock); + +@@ -519,9 +520,9 @@ static struct k_clock *clockid_to_kclock(const clockid_t id) + return (id & CLOCKFD_MASK) == CLOCKFD ? + &clock_posix_dynamic : &clock_posix_cpu; + +- if (id >= MAX_CLOCKS || !posix_clocks[id].clock_getres) ++ if (id >= MAX_CLOCKS || !posix_clocks[id] || !posix_clocks[id]->clock_getres) + return NULL; +- return &posix_clocks[id]; ++ return posix_clocks[id]; + } + + static int common_timer_create(struct k_itimer *new_timer) +@@ -959,6 +960,13 @@ SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock, + if (copy_from_user(&new_tp, tp, sizeof (*tp))) + return -EFAULT; + ++ /* only the CLOCK_REALTIME clock can be set, all other clocks ++ have their clock_set fptr set to a nosettime dummy function ++ CLOCK_REALTIME has a NULL clock_set fptr which causes it to ++ call common_clock_set, which calls do_sys_settimeofday, which ++ we hook ++ */ ++ + return kc->clock_set(which_clock, &new_tp); + } + +diff --git a/kernel/power/poweroff.c b/kernel/power/poweroff.c +index d523593..68197a4 100644 +--- a/kernel/power/poweroff.c ++++ b/kernel/power/poweroff.c +@@ -37,7 +37,7 @@ static struct sysrq_key_op sysrq_poweroff_op = { + .enable_mask = SYSRQ_ENABLE_BOOT, + }; + +-static int pm_sysrq_init(void) ++static int __init pm_sysrq_init(void) + { + register_sysrq_key('o', &sysrq_poweroff_op); + return 0; +diff --git a/kernel/power/process.c b/kernel/power/process.c +index 19db29f..33b52b6 100644 +--- a/kernel/power/process.c ++++ b/kernel/power/process.c +@@ -33,6 +33,7 @@ static int try_to_freeze_tasks(bool user_only) + u64 elapsed_csecs64; + unsigned int elapsed_csecs; + bool wakeup = false; ++ bool timedout = false; + + do_gettimeofday(&start); + +@@ -43,6 +44,8 @@ static int try_to_freeze_tasks(bool user_only) + + while (true) { + todo = 0; ++ if (time_after(jiffies, end_time)) ++ timedout = true; + read_lock(&tasklist_lock); + do_each_thread(g, p) { + if (p == current || !freeze_task(p)) +@@ -58,9 +61,13 @@ static int try_to_freeze_tasks(bool user_only) + * guaranteed that TASK_STOPPED/TRACED -> TASK_RUNNING + * transition can't race with task state testing here. + */ +- if (!task_is_stopped_or_traced(p) && +- !freezer_should_skip(p)) ++ if (!task_is_stopped_or_traced(p) && !freezer_should_skip(p)) { + todo++; ++ if (timedout) { ++ printk(KERN_ERR "Task refusing to freeze:\n"); ++ sched_show_task(p); ++ } ++ } + } while_each_thread(g, p); + read_unlock(&tasklist_lock); + +@@ -69,7 +76,7 @@ static int try_to_freeze_tasks(bool user_only) + todo += wq_busy; + } + +- if (!todo || time_after(jiffies, end_time)) ++ if (!todo || timedout) + break; + + if (pm_wakeup_pending()) { +diff --git a/kernel/printk.c b/kernel/printk.c +index b663c2c..1d6ba7a 100644 +--- a/kernel/printk.c ++++ b/kernel/printk.c +@@ -316,6 +316,11 @@ static int check_syslog_permissions(int type, bool from_file) + if (from_file && type != SYSLOG_ACTION_OPEN) + return 0; + ++#ifdef CONFIG_GRKERNSEC_DMESG ++ if (grsec_enable_dmesg && !capable(CAP_SYSLOG) && !capable_nolog(CAP_SYS_ADMIN)) ++ return -EPERM; ++#endif ++ + if (syslog_action_restricted(type)) { + if (capable(CAP_SYSLOG)) + return 0; +diff --git a/kernel/profile.c b/kernel/profile.c +index 76b8e77..a2930e8 100644 +--- a/kernel/profile.c ++++ b/kernel/profile.c +@@ -39,7 +39,7 @@ struct profile_hit { + /* Oprofile timer tick hook */ + static int (*timer_hook)(struct pt_regs *) __read_mostly; + +-static atomic_t *prof_buffer; ++static atomic_unchecked_t *prof_buffer; + static unsigned long prof_len, prof_shift; + + int prof_on __read_mostly; +@@ -281,7 +281,7 @@ static void profile_flip_buffers(void) + hits[i].pc = 0; + continue; + } +- atomic_add(hits[i].hits, &prof_buffer[hits[i].pc]); ++ atomic_add_unchecked(hits[i].hits, &prof_buffer[hits[i].pc]); + hits[i].hits = hits[i].pc = 0; + } + } +@@ -342,9 +342,9 @@ static void do_profile_hits(int type, void *__pc, unsigned int nr_hits) + * Add the current hit(s) and flush the write-queue out + * to the global buffer: + */ +- atomic_add(nr_hits, &prof_buffer[pc]); ++ atomic_add_unchecked(nr_hits, &prof_buffer[pc]); + for (i = 0; i < NR_PROFILE_HIT; ++i) { +- atomic_add(hits[i].hits, &prof_buffer[hits[i].pc]); ++ atomic_add_unchecked(hits[i].hits, &prof_buffer[hits[i].pc]); + hits[i].pc = hits[i].hits = 0; + } + out: +@@ -419,7 +419,7 @@ static void do_profile_hits(int type, void *__pc, unsigned int nr_hits) + { + unsigned long pc; + pc = ((unsigned long)__pc - (unsigned long)_stext) >> prof_shift; +- atomic_add(nr_hits, &prof_buffer[min(pc, prof_len - 1)]); ++ atomic_add_unchecked(nr_hits, &prof_buffer[min(pc, prof_len - 1)]); + } + #endif /* !CONFIG_SMP */ + +@@ -517,7 +517,7 @@ read_profile(struct file *file, char __user *buf, size_t count, loff_t *ppos) + return -EFAULT; + buf++; p++; count--; read++; + } +- pnt = (char *)prof_buffer + p - sizeof(atomic_t); ++ pnt = (char *)prof_buffer + p - sizeof(atomic_unchecked_t); + if (copy_to_user(buf, (void *)pnt, count)) + return -EFAULT; + read += count; +@@ -548,7 +548,7 @@ static ssize_t write_profile(struct file *file, const char __user *buf, + } + #endif + profile_discard_flip_buffers(); +- memset(prof_buffer, 0, prof_len * sizeof(atomic_t)); ++ memset(prof_buffer, 0, prof_len * sizeof(atomic_unchecked_t)); + return count; + } + +diff --git a/kernel/ptrace.c b/kernel/ptrace.c +index ee8d49b..bd3d790 100644 +--- a/kernel/ptrace.c ++++ b/kernel/ptrace.c +@@ -280,7 +280,7 @@ static int ptrace_attach(struct task_struct *task, long request, + + if (seize) + flags |= PT_SEIZED; +- if (ns_capable(task_user_ns(task), CAP_SYS_PTRACE)) ++ if (ns_capable_nolog(task_user_ns(task), CAP_SYS_PTRACE)) + flags |= PT_PTRACE_CAP; + task->ptrace = flags; + +@@ -487,7 +487,7 @@ int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst + break; + return -EIO; + } +- if (copy_to_user(dst, buf, retval)) ++ if (retval > sizeof(buf) || copy_to_user(dst, buf, retval)) + return -EFAULT; + copied += retval; + src += retval; +@@ -672,7 +672,7 @@ int ptrace_request(struct task_struct *child, long request, + bool seized = child->ptrace & PT_SEIZED; + int ret = -EIO; + siginfo_t siginfo, *si; +- void __user *datavp = (void __user *) data; ++ void __user *datavp = (__force void __user *) data; + unsigned long __user *datalp = datavp; + unsigned long flags; + +@@ -874,14 +874,21 @@ SYSCALL_DEFINE4(ptrace, long, request, long, pid, unsigned long, addr, + goto out; + } + ++ if (gr_handle_ptrace(child, request)) { ++ ret = -EPERM; ++ goto out_put_task_struct; ++ } ++ + if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) { + ret = ptrace_attach(child, request, addr, data); + /* + * Some architectures need to do book-keeping after + * a ptrace attach. + */ +- if (!ret) ++ if (!ret) { + arch_ptrace_attach(child); ++ gr_audit_ptrace(child); ++ } + goto out_put_task_struct; + } + +@@ -907,7 +914,7 @@ int generic_ptrace_peekdata(struct task_struct *tsk, unsigned long addr, + copied = access_process_vm(tsk, addr, &tmp, sizeof(tmp), 0); + if (copied != sizeof(tmp)) + return -EIO; +- return put_user(tmp, (unsigned long __user *)data); ++ return put_user(tmp, (__force unsigned long __user *)data); + } + + int generic_ptrace_pokedata(struct task_struct *tsk, unsigned long addr, +@@ -1017,14 +1024,21 @@ asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid, + goto out; + } + ++ if (gr_handle_ptrace(child, request)) { ++ ret = -EPERM; ++ goto out_put_task_struct; ++ } ++ + if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) { + ret = ptrace_attach(child, request, addr, data); + /* + * Some architectures need to do book-keeping after + * a ptrace attach. + */ +- if (!ret) ++ if (!ret) { + arch_ptrace_attach(child); ++ gr_audit_ptrace(child); ++ } + goto out_put_task_struct; + } + +diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c +index 37a5444..eec170a 100644 +--- a/kernel/rcutiny.c ++++ b/kernel/rcutiny.c +@@ -46,7 +46,7 @@ + struct rcu_ctrlblk; + static void invoke_rcu_callbacks(void); + static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp); +-static void rcu_process_callbacks(struct softirq_action *unused); ++static void rcu_process_callbacks(void); + static void __call_rcu(struct rcu_head *head, + void (*func)(struct rcu_head *rcu), + struct rcu_ctrlblk *rcp); +@@ -307,7 +307,7 @@ static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp) + rcu_is_callbacks_kthread())); + } + +-static void rcu_process_callbacks(struct softirq_action *unused) ++static void rcu_process_callbacks(void) + { + __rcu_process_callbacks(&rcu_sched_ctrlblk); + __rcu_process_callbacks(&rcu_bh_ctrlblk); +diff --git a/kernel/rcutiny_plugin.h b/kernel/rcutiny_plugin.h +index 22ecea0..3789898 100644 +--- a/kernel/rcutiny_plugin.h ++++ b/kernel/rcutiny_plugin.h +@@ -955,7 +955,7 @@ static int rcu_kthread(void *arg) + have_rcu_kthread_work = morework; + local_irq_restore(flags); + if (work) +- rcu_process_callbacks(NULL); ++ rcu_process_callbacks(); + schedule_timeout_interruptible(1); /* Leave CPU for others. */ + } + +diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c +index a89b381..efdcad8 100644 +--- a/kernel/rcutorture.c ++++ b/kernel/rcutorture.c +@@ -158,12 +158,12 @@ static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_count) = + { 0 }; + static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_batch) = + { 0 }; +-static atomic_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1]; +-static atomic_t n_rcu_torture_alloc; +-static atomic_t n_rcu_torture_alloc_fail; +-static atomic_t n_rcu_torture_free; +-static atomic_t n_rcu_torture_mberror; +-static atomic_t n_rcu_torture_error; ++static atomic_unchecked_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1]; ++static atomic_unchecked_t n_rcu_torture_alloc; ++static atomic_unchecked_t n_rcu_torture_alloc_fail; ++static atomic_unchecked_t n_rcu_torture_free; ++static atomic_unchecked_t n_rcu_torture_mberror; ++static atomic_unchecked_t n_rcu_torture_error; + static long n_rcu_torture_boost_ktrerror; + static long n_rcu_torture_boost_rterror; + static long n_rcu_torture_boost_failure; +@@ -253,11 +253,11 @@ rcu_torture_alloc(void) + + spin_lock_bh(&rcu_torture_lock); + if (list_empty(&rcu_torture_freelist)) { +- atomic_inc(&n_rcu_torture_alloc_fail); ++ atomic_inc_unchecked(&n_rcu_torture_alloc_fail); + spin_unlock_bh(&rcu_torture_lock); + return NULL; + } +- atomic_inc(&n_rcu_torture_alloc); ++ atomic_inc_unchecked(&n_rcu_torture_alloc); + p = rcu_torture_freelist.next; + list_del_init(p); + spin_unlock_bh(&rcu_torture_lock); +@@ -270,7 +270,7 @@ rcu_torture_alloc(void) + static void + rcu_torture_free(struct rcu_torture *p) + { +- atomic_inc(&n_rcu_torture_free); ++ atomic_inc_unchecked(&n_rcu_torture_free); + spin_lock_bh(&rcu_torture_lock); + list_add_tail(&p->rtort_free, &rcu_torture_freelist); + spin_unlock_bh(&rcu_torture_lock); +@@ -390,7 +390,7 @@ rcu_torture_cb(struct rcu_head *p) + i = rp->rtort_pipe_count; + if (i > RCU_TORTURE_PIPE_LEN) + i = RCU_TORTURE_PIPE_LEN; +- atomic_inc(&rcu_torture_wcount[i]); ++ atomic_inc_unchecked(&rcu_torture_wcount[i]); + if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) { + rp->rtort_mbtest = 0; + rcu_torture_free(rp); +@@ -437,7 +437,7 @@ static void rcu_sync_torture_deferred_free(struct rcu_torture *p) + i = rp->rtort_pipe_count; + if (i > RCU_TORTURE_PIPE_LEN) + i = RCU_TORTURE_PIPE_LEN; +- atomic_inc(&rcu_torture_wcount[i]); ++ atomic_inc_unchecked(&rcu_torture_wcount[i]); + if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) { + rp->rtort_mbtest = 0; + list_del(&rp->rtort_free); +@@ -926,7 +926,7 @@ rcu_torture_writer(void *arg) + i = old_rp->rtort_pipe_count; + if (i > RCU_TORTURE_PIPE_LEN) + i = RCU_TORTURE_PIPE_LEN; +- atomic_inc(&rcu_torture_wcount[i]); ++ atomic_inc_unchecked(&rcu_torture_wcount[i]); + old_rp->rtort_pipe_count++; + cur_ops->deferred_free(old_rp); + } +@@ -1007,7 +1007,7 @@ static void rcu_torture_timer(unsigned long unused) + } + do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu); + if (p->rtort_mbtest == 0) +- atomic_inc(&n_rcu_torture_mberror); ++ atomic_inc_unchecked(&n_rcu_torture_mberror); + spin_lock(&rand_lock); + cur_ops->read_delay(&rand); + n_rcu_torture_timers++; +@@ -1071,7 +1071,7 @@ rcu_torture_reader(void *arg) + } + do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu); + if (p->rtort_mbtest == 0) +- atomic_inc(&n_rcu_torture_mberror); ++ atomic_inc_unchecked(&n_rcu_torture_mberror); + cur_ops->read_delay(&rand); + preempt_disable(); + pipe_count = p->rtort_pipe_count; +@@ -1133,10 +1133,10 @@ rcu_torture_printk(char *page) + rcu_torture_current, + rcu_torture_current_version, + list_empty(&rcu_torture_freelist), +- atomic_read(&n_rcu_torture_alloc), +- atomic_read(&n_rcu_torture_alloc_fail), +- atomic_read(&n_rcu_torture_free), +- atomic_read(&n_rcu_torture_mberror), ++ atomic_read_unchecked(&n_rcu_torture_alloc), ++ atomic_read_unchecked(&n_rcu_torture_alloc_fail), ++ atomic_read_unchecked(&n_rcu_torture_free), ++ atomic_read_unchecked(&n_rcu_torture_mberror), + n_rcu_torture_boost_ktrerror, + n_rcu_torture_boost_rterror, + n_rcu_torture_boost_failure, +@@ -1146,7 +1146,7 @@ rcu_torture_printk(char *page) + n_online_attempts, + n_offline_successes, + n_offline_attempts); +- if (atomic_read(&n_rcu_torture_mberror) != 0 || ++ if (atomic_read_unchecked(&n_rcu_torture_mberror) != 0 || + n_rcu_torture_boost_ktrerror != 0 || + n_rcu_torture_boost_rterror != 0 || + n_rcu_torture_boost_failure != 0) +@@ -1154,7 +1154,7 @@ rcu_torture_printk(char *page) + cnt += sprintf(&page[cnt], "\n%s%s ", torture_type, TORTURE_FLAG); + if (i > 1) { + cnt += sprintf(&page[cnt], "!!! "); +- atomic_inc(&n_rcu_torture_error); ++ atomic_inc_unchecked(&n_rcu_torture_error); + WARN_ON_ONCE(1); + } + cnt += sprintf(&page[cnt], "Reader Pipe: "); +@@ -1168,7 +1168,7 @@ rcu_torture_printk(char *page) + cnt += sprintf(&page[cnt], "Free-Block Circulation: "); + for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) { + cnt += sprintf(&page[cnt], " %d", +- atomic_read(&rcu_torture_wcount[i])); ++ atomic_read_unchecked(&rcu_torture_wcount[i])); + } + cnt += sprintf(&page[cnt], "\n"); + if (cur_ops->stats) +@@ -1676,7 +1676,7 @@ rcu_torture_cleanup(void) + + if (cur_ops->cleanup) + cur_ops->cleanup(); +- if (atomic_read(&n_rcu_torture_error)) ++ if (atomic_read_unchecked(&n_rcu_torture_error)) + rcu_torture_print_module_parms(cur_ops, "End of test: FAILURE"); + else if (n_online_successes != n_online_attempts || + n_offline_successes != n_offline_attempts) +@@ -1744,17 +1744,17 @@ rcu_torture_init(void) + + rcu_torture_current = NULL; + rcu_torture_current_version = 0; +- atomic_set(&n_rcu_torture_alloc, 0); +- atomic_set(&n_rcu_torture_alloc_fail, 0); +- atomic_set(&n_rcu_torture_free, 0); +- atomic_set(&n_rcu_torture_mberror, 0); +- atomic_set(&n_rcu_torture_error, 0); ++ atomic_set_unchecked(&n_rcu_torture_alloc, 0); ++ atomic_set_unchecked(&n_rcu_torture_alloc_fail, 0); ++ atomic_set_unchecked(&n_rcu_torture_free, 0); ++ atomic_set_unchecked(&n_rcu_torture_mberror, 0); ++ atomic_set_unchecked(&n_rcu_torture_error, 0); + n_rcu_torture_boost_ktrerror = 0; + n_rcu_torture_boost_rterror = 0; + n_rcu_torture_boost_failure = 0; + n_rcu_torture_boosts = 0; + for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) +- atomic_set(&rcu_torture_wcount[i], 0); ++ atomic_set_unchecked(&rcu_torture_wcount[i], 0); + for_each_possible_cpu(cpu) { + for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) { + per_cpu(rcu_torture_count, cpu)[i] = 0; +diff --git a/kernel/rcutree.c b/kernel/rcutree.c +index d0c5baf..109b2e7 100644 +--- a/kernel/rcutree.c ++++ b/kernel/rcutree.c +@@ -357,9 +357,9 @@ static void rcu_idle_enter_common(struct rcu_dynticks *rdtp, long long oldval) + rcu_prepare_for_idle(smp_processor_id()); + /* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */ + smp_mb__before_atomic_inc(); /* See above. */ +- atomic_inc(&rdtp->dynticks); ++ atomic_inc_unchecked(&rdtp->dynticks); + smp_mb__after_atomic_inc(); /* Force ordering with next sojourn. */ +- WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1); ++ WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks) & 0x1); + + /* + * The idle task is not permitted to enter the idle loop while +@@ -448,10 +448,10 @@ void rcu_irq_exit(void) + static void rcu_idle_exit_common(struct rcu_dynticks *rdtp, long long oldval) + { + smp_mb__before_atomic_inc(); /* Force ordering w/previous sojourn. */ +- atomic_inc(&rdtp->dynticks); ++ atomic_inc_unchecked(&rdtp->dynticks); + /* CPUs seeing atomic_inc() must see later RCU read-side crit sects */ + smp_mb__after_atomic_inc(); /* See above. */ +- WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1)); ++ WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1)); + rcu_cleanup_after_idle(smp_processor_id()); + trace_rcu_dyntick("End", oldval, rdtp->dynticks_nesting); + if (!is_idle_task(current)) { +@@ -545,14 +545,14 @@ void rcu_nmi_enter(void) + struct rcu_dynticks *rdtp = &__get_cpu_var(rcu_dynticks); + + if (rdtp->dynticks_nmi_nesting == 0 && +- (atomic_read(&rdtp->dynticks) & 0x1)) ++ (atomic_read_unchecked(&rdtp->dynticks) & 0x1)) + return; + rdtp->dynticks_nmi_nesting++; + smp_mb__before_atomic_inc(); /* Force delay from prior write. */ +- atomic_inc(&rdtp->dynticks); ++ atomic_inc_unchecked(&rdtp->dynticks); + /* CPUs seeing atomic_inc() must see later RCU read-side crit sects */ + smp_mb__after_atomic_inc(); /* See above. */ +- WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1)); ++ WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1)); + } + + /** +@@ -571,9 +571,9 @@ void rcu_nmi_exit(void) + return; + /* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */ + smp_mb__before_atomic_inc(); /* See above. */ +- atomic_inc(&rdtp->dynticks); ++ atomic_inc_unchecked(&rdtp->dynticks); + smp_mb__after_atomic_inc(); /* Force delay to next write. */ +- WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1); ++ WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks) & 0x1); + } + + #ifdef CONFIG_PROVE_RCU +@@ -589,7 +589,7 @@ int rcu_is_cpu_idle(void) + int ret; + + preempt_disable(); +- ret = (atomic_read(&__get_cpu_var(rcu_dynticks).dynticks) & 0x1) == 0; ++ ret = (atomic_read_unchecked(&__get_cpu_var(rcu_dynticks).dynticks) & 0x1) == 0; + preempt_enable(); + return ret; + } +@@ -659,7 +659,7 @@ int rcu_is_cpu_rrupt_from_idle(void) + */ + static int dyntick_save_progress_counter(struct rcu_data *rdp) + { +- rdp->dynticks_snap = atomic_add_return(0, &rdp->dynticks->dynticks); ++ rdp->dynticks_snap = atomic_add_return_unchecked(0, &rdp->dynticks->dynticks); + return (rdp->dynticks_snap & 0x1) == 0; + } + +@@ -674,7 +674,7 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp) + unsigned int curr; + unsigned int snap; + +- curr = (unsigned int)atomic_add_return(0, &rdp->dynticks->dynticks); ++ curr = (unsigned int)atomic_add_return_unchecked(0, &rdp->dynticks->dynticks); + snap = (unsigned int)rdp->dynticks_snap; + + /* +@@ -704,10 +704,10 @@ static int jiffies_till_stall_check(void) + * for CONFIG_RCU_CPU_STALL_TIMEOUT. + */ + if (till_stall_check < 3) { +- ACCESS_ONCE(rcu_cpu_stall_timeout) = 3; ++ ACCESS_ONCE_RW(rcu_cpu_stall_timeout) = 3; + till_stall_check = 3; + } else if (till_stall_check > 300) { +- ACCESS_ONCE(rcu_cpu_stall_timeout) = 300; ++ ACCESS_ONCE_RW(rcu_cpu_stall_timeout) = 300; + till_stall_check = 300; + } + return till_stall_check * HZ + RCU_STALL_DELAY_DELTA; +@@ -1766,7 +1766,7 @@ __rcu_process_callbacks(struct rcu_state *rsp, struct rcu_data *rdp) + /* + * Do RCU core processing for the current CPU. + */ +-static void rcu_process_callbacks(struct softirq_action *unused) ++static void rcu_process_callbacks(void) + { + trace_rcu_utilization("Start RCU core"); + __rcu_process_callbacks(&rcu_sched_state, +@@ -1949,8 +1949,8 @@ void synchronize_rcu_bh(void) + } + EXPORT_SYMBOL_GPL(synchronize_rcu_bh); + +-static atomic_t sync_sched_expedited_started = ATOMIC_INIT(0); +-static atomic_t sync_sched_expedited_done = ATOMIC_INIT(0); ++static atomic_unchecked_t sync_sched_expedited_started = ATOMIC_INIT(0); ++static atomic_unchecked_t sync_sched_expedited_done = ATOMIC_INIT(0); + + static int synchronize_sched_expedited_cpu_stop(void *data) + { +@@ -2011,7 +2011,7 @@ void synchronize_sched_expedited(void) + int firstsnap, s, snap, trycount = 0; + + /* Note that atomic_inc_return() implies full memory barrier. */ +- firstsnap = snap = atomic_inc_return(&sync_sched_expedited_started); ++ firstsnap = snap = atomic_inc_return_unchecked(&sync_sched_expedited_started); + get_online_cpus(); + WARN_ON_ONCE(cpu_is_offline(raw_smp_processor_id())); + +@@ -2033,7 +2033,7 @@ void synchronize_sched_expedited(void) + } + + /* Check to see if someone else did our work for us. */ +- s = atomic_read(&sync_sched_expedited_done); ++ s = atomic_read_unchecked(&sync_sched_expedited_done); + if (UINT_CMP_GE((unsigned)s, (unsigned)firstsnap)) { + smp_mb(); /* ensure test happens before caller kfree */ + return; +@@ -2048,7 +2048,7 @@ void synchronize_sched_expedited(void) + * grace period works for us. + */ + get_online_cpus(); +- snap = atomic_read(&sync_sched_expedited_started); ++ snap = atomic_read_unchecked(&sync_sched_expedited_started); + smp_mb(); /* ensure read is before try_stop_cpus(). */ + } + +@@ -2059,12 +2059,12 @@ void synchronize_sched_expedited(void) + * than we did beat us to the punch. + */ + do { +- s = atomic_read(&sync_sched_expedited_done); ++ s = atomic_read_unchecked(&sync_sched_expedited_done); + if (UINT_CMP_GE((unsigned)s, (unsigned)snap)) { + smp_mb(); /* ensure test happens before caller kfree */ + break; + } +- } while (atomic_cmpxchg(&sync_sched_expedited_done, s, snap) != s); ++ } while (atomic_cmpxchg_unchecked(&sync_sched_expedited_done, s, snap) != s); + + put_online_cpus(); + } +@@ -2262,7 +2262,7 @@ rcu_boot_init_percpu_data(int cpu, struct rcu_state *rsp) + rdp->qlen = 0; + rdp->dynticks = &per_cpu(rcu_dynticks, cpu); + WARN_ON_ONCE(rdp->dynticks->dynticks_nesting != DYNTICK_TASK_EXIT_IDLE); +- WARN_ON_ONCE(atomic_read(&rdp->dynticks->dynticks) != 1); ++ WARN_ON_ONCE(atomic_read_unchecked(&rdp->dynticks->dynticks) != 1); + rdp->cpu = cpu; + rdp->rsp = rsp; + raw_spin_unlock_irqrestore(&rnp->lock, flags); +@@ -2290,8 +2290,8 @@ rcu_init_percpu_data(int cpu, struct rcu_state *rsp, int preemptible) + rdp->n_force_qs_snap = rsp->n_force_qs; + rdp->blimit = blimit; + rdp->dynticks->dynticks_nesting = DYNTICK_TASK_EXIT_IDLE; +- atomic_set(&rdp->dynticks->dynticks, +- (atomic_read(&rdp->dynticks->dynticks) & ~0x1) + 1); ++ atomic_set_unchecked(&rdp->dynticks->dynticks, ++ (atomic_read_unchecked(&rdp->dynticks->dynticks) & ~0x1) + 1); + rcu_prepare_for_idle_init(cpu); + raw_spin_unlock(&rnp->lock); /* irqs remain disabled. */ + +diff --git a/kernel/rcutree.h b/kernel/rcutree.h +index cdd1be0..5b2efb4 100644 +--- a/kernel/rcutree.h ++++ b/kernel/rcutree.h +@@ -87,7 +87,7 @@ struct rcu_dynticks { + long long dynticks_nesting; /* Track irq/process nesting level. */ + /* Process level is worth LLONG_MAX/2. */ + int dynticks_nmi_nesting; /* Track NMI nesting level. */ +- atomic_t dynticks; /* Even value for idle, else odd. */ ++ atomic_unchecked_t dynticks;/* Even value for idle, else odd. */ + }; + + /* RCU's kthread states for tracing. */ +diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h +index c023464..7f57225 100644 +--- a/kernel/rcutree_plugin.h ++++ b/kernel/rcutree_plugin.h +@@ -909,7 +909,7 @@ void synchronize_rcu_expedited(void) + + /* Clean up and exit. */ + smp_mb(); /* ensure expedited GP seen before counter increment. */ +- ACCESS_ONCE(sync_rcu_preempt_exp_count)++; ++ ACCESS_ONCE_RW(sync_rcu_preempt_exp_count)++; + unlock_mb_ret: + mutex_unlock(&sync_rcu_preempt_exp_mutex); + mb_ret: +diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c +index ed459ed..a03c3fa 100644 +--- a/kernel/rcutree_trace.c ++++ b/kernel/rcutree_trace.c +@@ -68,7 +68,7 @@ static void print_one_rcu_data(struct seq_file *m, struct rcu_data *rdp) + rdp->passed_quiesce, rdp->passed_quiesce_gpnum, + rdp->qs_pending); + seq_printf(m, " dt=%d/%llx/%d df=%lu", +- atomic_read(&rdp->dynticks->dynticks), ++ atomic_read_unchecked(&rdp->dynticks->dynticks), + rdp->dynticks->dynticks_nesting, + rdp->dynticks->dynticks_nmi_nesting, + rdp->dynticks_fqs); +@@ -140,7 +140,7 @@ static void print_one_rcu_data_csv(struct seq_file *m, struct rcu_data *rdp) + rdp->passed_quiesce, rdp->passed_quiesce_gpnum, + rdp->qs_pending); + seq_printf(m, ",%d,%llx,%d,%lu", +- atomic_read(&rdp->dynticks->dynticks), ++ atomic_read_unchecked(&rdp->dynticks->dynticks), + rdp->dynticks->dynticks_nesting, + rdp->dynticks->dynticks_nmi_nesting, + rdp->dynticks_fqs); +diff --git a/kernel/resource.c b/kernel/resource.c +index 7e8ea66..1efd11f 100644 +--- a/kernel/resource.c ++++ b/kernel/resource.c +@@ -141,8 +141,18 @@ static const struct file_operations proc_iomem_operations = { + + static int __init ioresources_init(void) + { ++#ifdef CONFIG_GRKERNSEC_PROC_ADD ++#ifdef CONFIG_GRKERNSEC_PROC_USER ++ proc_create("ioports", S_IRUSR, NULL, &proc_ioports_operations); ++ proc_create("iomem", S_IRUSR, NULL, &proc_iomem_operations); ++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ proc_create("ioports", S_IRUSR | S_IRGRP, NULL, &proc_ioports_operations); ++ proc_create("iomem", S_IRUSR | S_IRGRP, NULL, &proc_iomem_operations); ++#endif ++#else + proc_create("ioports", 0, NULL, &proc_ioports_operations); + proc_create("iomem", 0, NULL, &proc_iomem_operations); ++#endif + return 0; + } + __initcall(ioresources_init); +diff --git a/kernel/rtmutex-tester.c b/kernel/rtmutex-tester.c +index 98ec494..4241d6d 100644 +--- a/kernel/rtmutex-tester.c ++++ b/kernel/rtmutex-tester.c +@@ -20,7 +20,7 @@ + #define MAX_RT_TEST_MUTEXES 8 + + static spinlock_t rttest_lock; +-static atomic_t rttest_event; ++static atomic_unchecked_t rttest_event; + + struct test_thread_data { + int opcode; +@@ -61,7 +61,7 @@ static int handle_op(struct test_thread_data *td, int lockwakeup) + + case RTTEST_LOCKCONT: + td->mutexes[td->opdata] = 1; +- td->event = atomic_add_return(1, &rttest_event); ++ td->event = atomic_add_return_unchecked(1, &rttest_event); + return 0; + + case RTTEST_RESET: +@@ -74,7 +74,7 @@ static int handle_op(struct test_thread_data *td, int lockwakeup) + return 0; + + case RTTEST_RESETEVENT: +- atomic_set(&rttest_event, 0); ++ atomic_set_unchecked(&rttest_event, 0); + return 0; + + default: +@@ -91,9 +91,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup) + return ret; + + td->mutexes[id] = 1; +- td->event = atomic_add_return(1, &rttest_event); ++ td->event = atomic_add_return_unchecked(1, &rttest_event); + rt_mutex_lock(&mutexes[id]); +- td->event = atomic_add_return(1, &rttest_event); ++ td->event = atomic_add_return_unchecked(1, &rttest_event); + td->mutexes[id] = 4; + return 0; + +@@ -104,9 +104,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup) + return ret; + + td->mutexes[id] = 1; +- td->event = atomic_add_return(1, &rttest_event); ++ td->event = atomic_add_return_unchecked(1, &rttest_event); + ret = rt_mutex_lock_interruptible(&mutexes[id], 0); +- td->event = atomic_add_return(1, &rttest_event); ++ td->event = atomic_add_return_unchecked(1, &rttest_event); + td->mutexes[id] = ret ? 0 : 4; + return ret ? -EINTR : 0; + +@@ -115,9 +115,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup) + if (id < 0 || id >= MAX_RT_TEST_MUTEXES || td->mutexes[id] != 4) + return ret; + +- td->event = atomic_add_return(1, &rttest_event); ++ td->event = atomic_add_return_unchecked(1, &rttest_event); + rt_mutex_unlock(&mutexes[id]); +- td->event = atomic_add_return(1, &rttest_event); ++ td->event = atomic_add_return_unchecked(1, &rttest_event); + td->mutexes[id] = 0; + return 0; + +@@ -164,7 +164,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex) + break; + + td->mutexes[dat] = 2; +- td->event = atomic_add_return(1, &rttest_event); ++ td->event = atomic_add_return_unchecked(1, &rttest_event); + break; + + default: +@@ -184,7 +184,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex) + return; + + td->mutexes[dat] = 3; +- td->event = atomic_add_return(1, &rttest_event); ++ td->event = atomic_add_return_unchecked(1, &rttest_event); + break; + + case RTTEST_LOCKNOWAIT: +@@ -196,7 +196,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex) + return; + + td->mutexes[dat] = 1; +- td->event = atomic_add_return(1, &rttest_event); ++ td->event = atomic_add_return_unchecked(1, &rttest_event); + return; + + default: +diff --git a/kernel/sched/auto_group.c b/kernel/sched/auto_group.c +index 0984a21..939f183 100644 +--- a/kernel/sched/auto_group.c ++++ b/kernel/sched/auto_group.c +@@ -11,7 +11,7 @@ + + unsigned int __read_mostly sysctl_sched_autogroup_enabled = 1; + static struct autogroup autogroup_default; +-static atomic_t autogroup_seq_nr; ++static atomic_unchecked_t autogroup_seq_nr; + + void __init autogroup_init(struct task_struct *init_task) + { +@@ -78,7 +78,7 @@ static inline struct autogroup *autogroup_create(void) + + kref_init(&ag->kref); + init_rwsem(&ag->lock); +- ag->id = atomic_inc_return(&autogroup_seq_nr); ++ ag->id = atomic_inc_return_unchecked(&autogroup_seq_nr); + ag->tg = tg; + #ifdef CONFIG_RT_GROUP_SCHED + /* +diff --git a/kernel/sched/core.c b/kernel/sched/core.c +index 817bf70..9099fb4 100644 +--- a/kernel/sched/core.c ++++ b/kernel/sched/core.c +@@ -4038,6 +4038,8 @@ int can_nice(const struct task_struct *p, const int nice) + /* convert nice value [19,-20] to rlimit style value [1,40] */ + int nice_rlim = 20 - nice; + ++ gr_learn_resource(p, RLIMIT_NICE, nice_rlim, 1); ++ + return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) || + capable(CAP_SYS_NICE)); + } +@@ -4071,7 +4073,8 @@ SYSCALL_DEFINE1(nice, int, increment) + if (nice > 19) + nice = 19; + +- if (increment < 0 && !can_nice(current, nice)) ++ if (increment < 0 && (!can_nice(current, nice) || ++ gr_handle_chroot_nice())) + return -EPERM; + + retval = security_task_setnice(current, nice); +@@ -4228,6 +4231,7 @@ recheck: + unsigned long rlim_rtprio = + task_rlimit(p, RLIMIT_RTPRIO); + ++ gr_learn_resource(p, RLIMIT_RTPRIO, param->sched_priority, 1); + /* can't set/change the rt policy */ + if (policy != p->policy && !rlim_rtprio) + return -EPERM; +diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c +index e955364..eacd2a4 100644 +--- a/kernel/sched/fair.c ++++ b/kernel/sched/fair.c +@@ -5107,7 +5107,7 @@ static void nohz_idle_balance(int this_cpu, enum cpu_idle_type idle) { } + * run_rebalance_domains is triggered when needed from the scheduler tick. + * Also triggered for nohz idle balancing (with nohz_balancing_kick set). + */ +-static void run_rebalance_domains(struct softirq_action *h) ++static void run_rebalance_domains(void) + { + int this_cpu = smp_processor_id(); + struct rq *this_rq = cpu_rq(this_cpu); +diff --git a/kernel/signal.c b/kernel/signal.c +index 17afcaf..4500b05 100644 +--- a/kernel/signal.c ++++ b/kernel/signal.c +@@ -47,12 +47,12 @@ static struct kmem_cache *sigqueue_cachep; + + int print_fatal_signals __read_mostly; + +-static void __user *sig_handler(struct task_struct *t, int sig) ++static __sighandler_t sig_handler(struct task_struct *t, int sig) + { + return t->sighand->action[sig - 1].sa.sa_handler; + } + +-static int sig_handler_ignored(void __user *handler, int sig) ++static int sig_handler_ignored(__sighandler_t handler, int sig) + { + /* Is it explicitly or implicitly ignored? */ + return handler == SIG_IGN || +@@ -61,7 +61,7 @@ static int sig_handler_ignored(void __user *handler, int sig) + + static int sig_task_ignored(struct task_struct *t, int sig, bool force) + { +- void __user *handler; ++ __sighandler_t handler; + + handler = sig_handler(t, sig); + +@@ -365,6 +365,9 @@ __sigqueue_alloc(int sig, struct task_struct *t, gfp_t flags, int override_rlimi + atomic_inc(&user->sigpending); + rcu_read_unlock(); + ++ if (!override_rlimit) ++ gr_learn_resource(t, RLIMIT_SIGPENDING, atomic_read(&user->sigpending), 1); ++ + if (override_rlimit || + atomic_read(&user->sigpending) <= + task_rlimit(t, RLIMIT_SIGPENDING)) { +@@ -489,7 +492,7 @@ flush_signal_handlers(struct task_struct *t, int force_default) + + int unhandled_signal(struct task_struct *tsk, int sig) + { +- void __user *handler = tsk->sighand->action[sig-1].sa.sa_handler; ++ __sighandler_t handler = tsk->sighand->action[sig-1].sa.sa_handler; + if (is_global_init(tsk)) + return 1; + if (handler != SIG_IGN && handler != SIG_DFL) +@@ -816,6 +819,13 @@ static int check_kill_permission(int sig, struct siginfo *info, + } + } + ++ /* allow glibc communication via tgkill to other threads in our ++ thread group */ ++ if ((info == SEND_SIG_NOINFO || info->si_code != SI_TKILL || ++ sig != (SIGRTMIN+1) || task_tgid_vnr(t) != info->si_pid) ++ && gr_handle_signal(t, sig)) ++ return -EPERM; ++ + return security_task_kill(t, info, sig, 0); + } + +@@ -1204,7 +1214,7 @@ __group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p) + return send_signal(sig, info, p, 1); + } + +-static int ++int + specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t) + { + return send_signal(sig, info, t, 0); +@@ -1241,6 +1251,7 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t) + unsigned long int flags; + int ret, blocked, ignored; + struct k_sigaction *action; ++ int is_unhandled = 0; + + spin_lock_irqsave(&t->sighand->siglock, flags); + action = &t->sighand->action[sig-1]; +@@ -1255,9 +1266,18 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t) + } + if (action->sa.sa_handler == SIG_DFL) + t->signal->flags &= ~SIGNAL_UNKILLABLE; ++ if (action->sa.sa_handler == SIG_IGN || action->sa.sa_handler == SIG_DFL) ++ is_unhandled = 1; + ret = specific_send_sig_info(sig, info, t); + spin_unlock_irqrestore(&t->sighand->siglock, flags); + ++ /* only deal with unhandled signals, java etc trigger SIGSEGV during ++ normal operation */ ++ if (is_unhandled) { ++ gr_log_signal(sig, !is_si_special(info) ? info->si_addr : NULL, t); ++ gr_handle_crash(t, sig); ++ } ++ + return ret; + } + +@@ -1324,8 +1344,11 @@ int group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p) + ret = check_kill_permission(sig, info, p); + rcu_read_unlock(); + +- if (!ret && sig) ++ if (!ret && sig) { + ret = do_send_sig_info(sig, info, p, true); ++ if (!ret) ++ gr_log_signal(sig, !is_si_special(info) ? info->si_addr : NULL, p); ++ } + + return ret; + } +@@ -2840,7 +2863,15 @@ do_send_specific(pid_t tgid, pid_t pid, int sig, struct siginfo *info) + int error = -ESRCH; + + rcu_read_lock(); +- p = find_task_by_vpid(pid); ++#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK ++ /* allow glibc communication via tgkill to other threads in our ++ thread group */ ++ if (grsec_enable_chroot_findtask && info->si_code == SI_TKILL && ++ sig == (SIGRTMIN+1) && tgid == info->si_pid) ++ p = find_task_by_vpid_unrestricted(pid); ++ else ++#endif ++ p = find_task_by_vpid(pid); + if (p && (tgid <= 0 || task_tgid_vnr(p) == tgid)) { + error = check_kill_permission(sig, info, p); + /* +diff --git a/kernel/smp.c b/kernel/smp.c +index 2f8b10e..a41bc14 100644 +--- a/kernel/smp.c ++++ b/kernel/smp.c +@@ -580,22 +580,22 @@ int smp_call_function(smp_call_func_t func, void *info, int wait) + } + EXPORT_SYMBOL(smp_call_function); + +-void ipi_call_lock(void) ++void ipi_call_lock(void) __acquires(call_function.lock) + { + raw_spin_lock(&call_function.lock); + } + +-void ipi_call_unlock(void) ++void ipi_call_unlock(void) __releases(call_function.lock) + { + raw_spin_unlock(&call_function.lock); + } + +-void ipi_call_lock_irq(void) ++void ipi_call_lock_irq(void) __acquires(call_function.lock) + { + raw_spin_lock_irq(&call_function.lock); + } + +-void ipi_call_unlock_irq(void) ++void ipi_call_unlock_irq(void) __releases(call_function.lock) + { + raw_spin_unlock_irq(&call_function.lock); + } +diff --git a/kernel/softirq.c b/kernel/softirq.c +index 671f959..91c51cb 100644 +--- a/kernel/softirq.c ++++ b/kernel/softirq.c +@@ -56,7 +56,7 @@ static struct softirq_action softirq_vec[NR_SOFTIRQS] __cacheline_aligned_in_smp + + DEFINE_PER_CPU(struct task_struct *, ksoftirqd); + +-char *softirq_to_name[NR_SOFTIRQS] = { ++const char * const softirq_to_name[NR_SOFTIRQS] = { + "HI", "TIMER", "NET_TX", "NET_RX", "BLOCK", "BLOCK_IOPOLL", + "TASKLET", "SCHED", "HRTIMER", "RCU" + }; +@@ -235,7 +235,7 @@ restart: + kstat_incr_softirqs_this_cpu(vec_nr); + + trace_softirq_entry(vec_nr); +- h->action(h); ++ h->action(); + trace_softirq_exit(vec_nr); + if (unlikely(prev_count != preempt_count())) { + printk(KERN_ERR "huh, entered softirq %u %s %p" +@@ -381,9 +381,11 @@ void __raise_softirq_irqoff(unsigned int nr) + or_softirq_pending(1UL << nr); + } + +-void open_softirq(int nr, void (*action)(struct softirq_action *)) ++void open_softirq(int nr, void (*action)(void)) + { +- softirq_vec[nr].action = action; ++ pax_open_kernel(); ++ *(void **)&softirq_vec[nr].action = action; ++ pax_close_kernel(); + } + + /* +@@ -437,7 +439,7 @@ void __tasklet_hi_schedule_first(struct tasklet_struct *t) + + EXPORT_SYMBOL(__tasklet_hi_schedule_first); + +-static void tasklet_action(struct softirq_action *a) ++static void tasklet_action(void) + { + struct tasklet_struct *list; + +@@ -472,7 +474,7 @@ static void tasklet_action(struct softirq_action *a) + } + } + +-static void tasklet_hi_action(struct softirq_action *a) ++static void tasklet_hi_action(void) + { + struct tasklet_struct *list; + +diff --git a/kernel/sys.c b/kernel/sys.c +index e7006eb..8fb7c51 100644 +--- a/kernel/sys.c ++++ b/kernel/sys.c +@@ -158,6 +158,12 @@ static int set_one_prio(struct task_struct *p, int niceval, int error) + error = -EACCES; + goto out; + } ++ ++ if (gr_handle_chroot_setpriority(p, niceval)) { ++ error = -EACCES; ++ goto out; ++ } ++ + no_nice = security_task_setnice(p, niceval); + if (no_nice) { + error = no_nice; +@@ -581,6 +587,9 @@ SYSCALL_DEFINE2(setregid, gid_t, rgid, gid_t, egid) + goto error; + } + ++ if (gr_check_group_change(new->gid, new->egid, -1)) ++ goto error; ++ + if (rgid != (gid_t) -1 || + (egid != (gid_t) -1 && egid != old->gid)) + new->sgid = new->egid; +@@ -610,6 +619,10 @@ SYSCALL_DEFINE1(setgid, gid_t, gid) + old = current_cred(); + + retval = -EPERM; ++ ++ if (gr_check_group_change(gid, gid, gid)) ++ goto error; ++ + if (nsown_capable(CAP_SETGID)) + new->gid = new->egid = new->sgid = new->fsgid = gid; + else if (gid == old->gid || gid == old->sgid) +@@ -627,7 +640,7 @@ error: + /* + * change the user struct in a credentials set to match the new UID + */ +-static int set_user(struct cred *new) ++int set_user(struct cred *new) + { + struct user_struct *new_user; + +@@ -697,6 +710,9 @@ SYSCALL_DEFINE2(setreuid, uid_t, ruid, uid_t, euid) + goto error; + } + ++ if (gr_check_user_change(new->uid, new->euid, -1)) ++ goto error; ++ + if (new->uid != old->uid) { + retval = set_user(new); + if (retval < 0) +@@ -741,6 +757,12 @@ SYSCALL_DEFINE1(setuid, uid_t, uid) + old = current_cred(); + + retval = -EPERM; ++ ++ if (gr_check_crash_uid(uid)) ++ goto error; ++ if (gr_check_user_change(uid, uid, uid)) ++ goto error; ++ + if (nsown_capable(CAP_SETUID)) { + new->suid = new->uid = uid; + if (uid != old->uid) { +@@ -795,6 +817,9 @@ SYSCALL_DEFINE3(setresuid, uid_t, ruid, uid_t, euid, uid_t, suid) + goto error; + } + ++ if (gr_check_user_change(ruid, euid, -1)) ++ goto error; ++ + if (ruid != (uid_t) -1) { + new->uid = ruid; + if (ruid != old->uid) { +@@ -859,6 +884,9 @@ SYSCALL_DEFINE3(setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid) + goto error; + } + ++ if (gr_check_group_change(rgid, egid, -1)) ++ goto error; ++ + if (rgid != (gid_t) -1) + new->gid = rgid; + if (egid != (gid_t) -1) +@@ -905,6 +933,9 @@ SYSCALL_DEFINE1(setfsuid, uid_t, uid) + old = current_cred(); + old_fsuid = old->fsuid; + ++ if (gr_check_user_change(-1, -1, uid)) ++ goto error; ++ + if (uid == old->uid || uid == old->euid || + uid == old->suid || uid == old->fsuid || + nsown_capable(CAP_SETUID)) { +@@ -915,6 +946,7 @@ SYSCALL_DEFINE1(setfsuid, uid_t, uid) + } + } + ++error: + abort_creds(new); + return old_fsuid; + +@@ -941,12 +973,16 @@ SYSCALL_DEFINE1(setfsgid, gid_t, gid) + if (gid == old->gid || gid == old->egid || + gid == old->sgid || gid == old->fsgid || + nsown_capable(CAP_SETGID)) { ++ if (gr_check_group_change(-1, -1, gid)) ++ goto error; ++ + if (gid != old_fsgid) { + new->fsgid = gid; + goto change_okay; + } + } + ++error: + abort_creds(new); + return old_fsgid; + +@@ -1198,7 +1234,10 @@ static int override_release(char __user *release, int len) + } + v = ((LINUX_VERSION_CODE >> 8) & 0xff) + 40; + snprintf(buf, len, "2.6.%u%s", v, rest); +- ret = copy_to_user(release, buf, len); ++ if (len > sizeof(buf)) ++ ret = -EFAULT; ++ else ++ ret = copy_to_user(release, buf, len); + } + return ret; + } +@@ -1252,19 +1291,19 @@ SYSCALL_DEFINE1(olduname, struct oldold_utsname __user *, name) + return -EFAULT; + + down_read(&uts_sem); +- error = __copy_to_user(&name->sysname, &utsname()->sysname, ++ error = __copy_to_user(name->sysname, &utsname()->sysname, + __OLD_UTS_LEN); + error |= __put_user(0, name->sysname + __OLD_UTS_LEN); +- error |= __copy_to_user(&name->nodename, &utsname()->nodename, ++ error |= __copy_to_user(name->nodename, &utsname()->nodename, + __OLD_UTS_LEN); + error |= __put_user(0, name->nodename + __OLD_UTS_LEN); +- error |= __copy_to_user(&name->release, &utsname()->release, ++ error |= __copy_to_user(name->release, &utsname()->release, + __OLD_UTS_LEN); + error |= __put_user(0, name->release + __OLD_UTS_LEN); +- error |= __copy_to_user(&name->version, &utsname()->version, ++ error |= __copy_to_user(name->version, &utsname()->version, + __OLD_UTS_LEN); + error |= __put_user(0, name->version + __OLD_UTS_LEN); +- error |= __copy_to_user(&name->machine, &utsname()->machine, ++ error |= __copy_to_user(name->machine, &utsname()->machine, + __OLD_UTS_LEN); + error |= __put_user(0, name->machine + __OLD_UTS_LEN); + up_read(&uts_sem); +@@ -1847,7 +1886,7 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3, + error = get_dumpable(me->mm); + break; + case PR_SET_DUMPABLE: +- if (arg2 < 0 || arg2 > 1) { ++ if (arg2 > 1) { + error = -EINVAL; + break; + } +diff --git a/kernel/sysctl.c b/kernel/sysctl.c +index 4ab1187..0b75ced 100644 +--- a/kernel/sysctl.c ++++ b/kernel/sysctl.c +@@ -91,7 +91,6 @@ + + + #if defined(CONFIG_SYSCTL) +- + /* External variables not in a header file. */ + extern int sysctl_overcommit_memory; + extern int sysctl_overcommit_ratio; +@@ -169,10 +168,8 @@ static int proc_taint(struct ctl_table *table, int write, + void __user *buffer, size_t *lenp, loff_t *ppos); + #endif + +-#ifdef CONFIG_PRINTK + static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write, + void __user *buffer, size_t *lenp, loff_t *ppos); +-#endif + + #ifdef CONFIG_MAGIC_SYSRQ + /* Note: sysrq code uses it's own private copy */ +@@ -196,6 +193,8 @@ static int sysrq_sysctl_handler(ctl_table *table, int write, + + #endif + ++extern struct ctl_table grsecurity_table[]; ++ + static struct ctl_table kern_table[]; + static struct ctl_table vm_table[]; + static struct ctl_table fs_table[]; +@@ -210,6 +209,20 @@ extern struct ctl_table epoll_table[]; + int sysctl_legacy_va_layout; + #endif + ++#ifdef CONFIG_PAX_SOFTMODE ++static ctl_table pax_table[] = { ++ { ++ .procname = "softmode", ++ .data = &pax_softmode, ++ .maxlen = sizeof(unsigned int), ++ .mode = 0600, ++ .proc_handler = &proc_dointvec, ++ }, ++ ++ { } ++}; ++#endif ++ + /* The default sysctl tables: */ + + static struct ctl_table sysctl_base_table[] = { +@@ -256,6 +269,22 @@ static int max_extfrag_threshold = 1000; + #endif + + static struct ctl_table kern_table[] = { ++#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_ROFS) ++ { ++ .procname = "grsecurity", ++ .mode = 0500, ++ .child = grsecurity_table, ++ }, ++#endif ++ ++#ifdef CONFIG_PAX_SOFTMODE ++ { ++ .procname = "pax", ++ .mode = 0500, ++ .child = pax_table, ++ }, ++#endif ++ + { + .procname = "sched_child_runs_first", + .data = &sysctl_sched_child_runs_first, +@@ -540,7 +569,7 @@ static struct ctl_table kern_table[] = { + .data = &modprobe_path, + .maxlen = KMOD_PATH_LEN, + .mode = 0644, +- .proc_handler = proc_dostring, ++ .proc_handler = proc_dostring_modpriv, + }, + { + .procname = "modules_disabled", +@@ -707,16 +736,20 @@ static struct ctl_table kern_table[] = { + .extra1 = &zero, + .extra2 = &one, + }, ++#endif + { + .procname = "kptr_restrict", + .data = &kptr_restrict, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax_sysadmin, ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ .extra1 = &two, ++#else + .extra1 = &zero, ++#endif + .extra2 = &two, + }, +-#endif + { + .procname = "ngroups_max", + .data = &ngroups_max, +@@ -1215,6 +1248,13 @@ static struct ctl_table vm_table[] = { + .proc_handler = proc_dointvec_minmax, + .extra1 = &zero, + }, ++ { ++ .procname = "heap_stack_gap", ++ .data = &sysctl_heap_stack_gap, ++ .maxlen = sizeof(sysctl_heap_stack_gap), ++ .mode = 0644, ++ .proc_handler = proc_doulongvec_minmax, ++ }, + #else + { + .procname = "nr_trim_pages", +@@ -1645,6 +1685,16 @@ int proc_dostring(struct ctl_table *table, int write, + buffer, lenp, ppos); + } + ++int proc_dostring_modpriv(struct ctl_table *table, int write, ++ void __user *buffer, size_t *lenp, loff_t *ppos) ++{ ++ if (write && !capable(CAP_SYS_MODULE)) ++ return -EPERM; ++ ++ return _proc_do_string(table->data, table->maxlen, write, ++ buffer, lenp, ppos); ++} ++ + static size_t proc_skip_spaces(char **buf) + { + size_t ret; +@@ -1750,6 +1800,8 @@ static int proc_put_long(void __user **buf, size_t *size, unsigned long val, + len = strlen(tmp); + if (len > *size) + len = *size; ++ if (len > sizeof(tmp)) ++ len = sizeof(tmp); + if (copy_to_user(*buf, tmp, len)) + return -EFAULT; + *size -= len; +@@ -1942,7 +1994,6 @@ static int proc_taint(struct ctl_table *table, int write, + return err; + } + +-#ifdef CONFIG_PRINTK + static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write, + void __user *buffer, size_t *lenp, loff_t *ppos) + { +@@ -1951,7 +2002,6 @@ static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write, + + return proc_dointvec_minmax(table, write, buffer, lenp, ppos); + } +-#endif + + struct do_proc_dointvec_minmax_conv_param { + int *min; +@@ -2066,8 +2116,11 @@ static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table, int + *i = val; + } else { + val = convdiv * (*i) / convmul; +- if (!first) ++ if (!first) { + err = proc_put_char(&buffer, &left, '\t'); ++ if (err) ++ break; ++ } + err = proc_put_long(&buffer, &left, val, false); + if (err) + break; +@@ -2459,6 +2512,12 @@ int proc_dostring(struct ctl_table *table, int write, + return -ENOSYS; + } + ++int proc_dostring_modpriv(struct ctl_table *table, int write, ++ void __user *buffer, size_t *lenp, loff_t *ppos) ++{ ++ return -ENOSYS; ++} ++ + int proc_dointvec(struct ctl_table *table, int write, + void __user *buffer, size_t *lenp, loff_t *ppos) + { +@@ -2515,5 +2574,6 @@ EXPORT_SYMBOL(proc_dointvec_minmax); + EXPORT_SYMBOL(proc_dointvec_userhz_jiffies); + EXPORT_SYMBOL(proc_dointvec_ms_jiffies); + EXPORT_SYMBOL(proc_dostring); ++EXPORT_SYMBOL(proc_dostring_modpriv); + EXPORT_SYMBOL(proc_doulongvec_minmax); + EXPORT_SYMBOL(proc_doulongvec_ms_jiffies_minmax); +diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c +index a650694..aaeeb20 100644 +--- a/kernel/sysctl_binary.c ++++ b/kernel/sysctl_binary.c +@@ -989,7 +989,7 @@ static ssize_t bin_intvec(struct file *file, + int i; + + set_fs(KERNEL_DS); +- result = vfs_read(file, buffer, BUFSZ - 1, &pos); ++ result = vfs_read(file, (char __force_user *)buffer, BUFSZ - 1, &pos); + set_fs(old_fs); + if (result < 0) + goto out_kfree; +@@ -1034,7 +1034,7 @@ static ssize_t bin_intvec(struct file *file, + } + + set_fs(KERNEL_DS); +- result = vfs_write(file, buffer, str - buffer, &pos); ++ result = vfs_write(file, (const char __force_user *)buffer, str - buffer, &pos); + set_fs(old_fs); + if (result < 0) + goto out_kfree; +@@ -1067,7 +1067,7 @@ static ssize_t bin_ulongvec(struct file *file, + int i; + + set_fs(KERNEL_DS); +- result = vfs_read(file, buffer, BUFSZ - 1, &pos); ++ result = vfs_read(file, (char __force_user *)buffer, BUFSZ - 1, &pos); + set_fs(old_fs); + if (result < 0) + goto out_kfree; +@@ -1112,7 +1112,7 @@ static ssize_t bin_ulongvec(struct file *file, + } + + set_fs(KERNEL_DS); +- result = vfs_write(file, buffer, str - buffer, &pos); ++ result = vfs_write(file, (const char __force_user *)buffer, str - buffer, &pos); + set_fs(old_fs); + if (result < 0) + goto out_kfree; +@@ -1138,7 +1138,7 @@ static ssize_t bin_uuid(struct file *file, + int i; + + set_fs(KERNEL_DS); +- result = vfs_read(file, buf, sizeof(buf) - 1, &pos); ++ result = vfs_read(file, (char __force_user *)buf, sizeof(buf) - 1, &pos); + set_fs(old_fs); + if (result < 0) + goto out; +@@ -1185,7 +1185,7 @@ static ssize_t bin_dn_node_address(struct file *file, + __le16 dnaddr; + + set_fs(KERNEL_DS); +- result = vfs_read(file, buf, sizeof(buf) - 1, &pos); ++ result = vfs_read(file, (char __force_user *)buf, sizeof(buf) - 1, &pos); + set_fs(old_fs); + if (result < 0) + goto out; +@@ -1233,7 +1233,7 @@ static ssize_t bin_dn_node_address(struct file *file, + le16_to_cpu(dnaddr) & 0x3ff); + + set_fs(KERNEL_DS); +- result = vfs_write(file, buf, len, &pos); ++ result = vfs_write(file, (const char __force_user *)buf, len, &pos); + set_fs(old_fs); + if (result < 0) + goto out; +diff --git a/kernel/taskstats.c b/kernel/taskstats.c +index e660464..c8b9e67 100644 +--- a/kernel/taskstats.c ++++ b/kernel/taskstats.c +@@ -27,9 +27,12 @@ + #include <linux/cgroup.h> + #include <linux/fs.h> + #include <linux/file.h> ++#include <linux/grsecurity.h> + #include <net/genetlink.h> + #include <linux/atomic.h> + ++extern int gr_is_taskstats_denied(int pid); ++ + /* + * Maximum length of a cpumask that can be specified in + * the TASKSTATS_CMD_ATTR_REGISTER/DEREGISTER_CPUMASK attribute +@@ -556,6 +559,9 @@ err: + + static int taskstats_user_cmd(struct sk_buff *skb, struct genl_info *info) + { ++ if (gr_is_taskstats_denied(current->pid)) ++ return -EACCES; ++ + if (info->attrs[TASKSTATS_CMD_ATTR_REGISTER_CPUMASK]) + return cmd_attr_register_cpumask(info); + else if (info->attrs[TASKSTATS_CMD_ATTR_DEREGISTER_CPUMASK]) +diff --git a/kernel/time.c b/kernel/time.c +index ba744cf..267b7c5 100644 +--- a/kernel/time.c ++++ b/kernel/time.c +@@ -163,6 +163,11 @@ int do_sys_settimeofday(const struct timespec *tv, const struct timezone *tz) + return error; + + if (tz) { ++ /* we log in do_settimeofday called below, so don't log twice ++ */ ++ if (!tv) ++ gr_log_timechange(); ++ + sys_tz = *tz; + update_vsyscall_tz(); + if (firsttime) { +diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c +index 8a538c5..def79d4 100644 +--- a/kernel/time/alarmtimer.c ++++ b/kernel/time/alarmtimer.c +@@ -779,7 +779,7 @@ static int __init alarmtimer_init(void) + struct platform_device *pdev; + int error = 0; + int i; +- struct k_clock alarm_clock = { ++ static struct k_clock alarm_clock = { + .clock_getres = alarm_clock_getres, + .clock_get = alarm_clock_get, + .timer_create = alarm_timer_create, +diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c +index f113755..ec24223 100644 +--- a/kernel/time/tick-broadcast.c ++++ b/kernel/time/tick-broadcast.c +@@ -115,7 +115,7 @@ int tick_device_uses_broadcast(struct clock_event_device *dev, int cpu) + * then clear the broadcast bit. + */ + if (!(dev->features & CLOCK_EVT_FEAT_C3STOP)) { +- int cpu = smp_processor_id(); ++ cpu = smp_processor_id(); + + cpumask_clear_cpu(cpu, tick_get_broadcast_mask()); + tick_broadcast_clear_oneshot(cpu); +diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c +index 7c50de8..e29a94d 100644 +--- a/kernel/time/timekeeping.c ++++ b/kernel/time/timekeeping.c +@@ -14,6 +14,7 @@ + #include <linux/init.h> + #include <linux/mm.h> + #include <linux/sched.h> ++#include <linux/grsecurity.h> + #include <linux/syscore_ops.h> + #include <linux/clocksource.h> + #include <linux/jiffies.h> +@@ -388,6 +389,8 @@ int do_settimeofday(const struct timespec *tv) + if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) + return -EINVAL; + ++ gr_log_timechange(); ++ + write_seqlock_irqsave(&timekeeper.lock, flags); + + timekeeping_forward_now(); +diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c +index 3258455..f35227d 100644 +--- a/kernel/time/timer_list.c ++++ b/kernel/time/timer_list.c +@@ -38,12 +38,16 @@ DECLARE_PER_CPU(struct hrtimer_cpu_base, hrtimer_bases); + + static void print_name_offset(struct seq_file *m, void *sym) + { ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ SEQ_printf(m, "<%p>", NULL); ++#else + char symname[KSYM_NAME_LEN]; + + if (lookup_symbol_name((unsigned long)sym, symname) < 0) + SEQ_printf(m, "<%pK>", sym); + else + SEQ_printf(m, "%s", symname); ++#endif + } + + static void +@@ -112,7 +116,11 @@ next_one: + static void + print_base(struct seq_file *m, struct hrtimer_clock_base *base, u64 now) + { ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ SEQ_printf(m, " .base: %p\n", NULL); ++#else + SEQ_printf(m, " .base: %pK\n", base); ++#endif + SEQ_printf(m, " .index: %d\n", + base->index); + SEQ_printf(m, " .resolution: %Lu nsecs\n", +@@ -293,7 +301,11 @@ static int __init init_timer_list_procfs(void) + { + struct proc_dir_entry *pe; + ++#ifdef CONFIG_GRKERNSEC_PROC_ADD ++ pe = proc_create("timer_list", 0400, NULL, &timer_list_fops); ++#else + pe = proc_create("timer_list", 0444, NULL, &timer_list_fops); ++#endif + if (!pe) + return -ENOMEM; + return 0; +diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c +index 0b537f2..9e71eca 100644 +--- a/kernel/time/timer_stats.c ++++ b/kernel/time/timer_stats.c +@@ -116,7 +116,7 @@ static ktime_t time_start, time_stop; + static unsigned long nr_entries; + static struct entry entries[MAX_ENTRIES]; + +-static atomic_t overflow_count; ++static atomic_unchecked_t overflow_count; + + /* + * The entries are in a hash-table, for fast lookup: +@@ -140,7 +140,7 @@ static void reset_entries(void) + nr_entries = 0; + memset(entries, 0, sizeof(entries)); + memset(tstat_hash_table, 0, sizeof(tstat_hash_table)); +- atomic_set(&overflow_count, 0); ++ atomic_set_unchecked(&overflow_count, 0); + } + + static struct entry *alloc_entry(void) +@@ -261,7 +261,7 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf, + if (likely(entry)) + entry->count++; + else +- atomic_inc(&overflow_count); ++ atomic_inc_unchecked(&overflow_count); + + out_unlock: + raw_spin_unlock_irqrestore(lock, flags); +@@ -269,12 +269,16 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf, + + static void print_name_offset(struct seq_file *m, unsigned long addr) + { ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ seq_printf(m, "<%p>", NULL); ++#else + char symname[KSYM_NAME_LEN]; + + if (lookup_symbol_name(addr, symname) < 0) + seq_printf(m, "<%p>", (void *)addr); + else + seq_printf(m, "%s", symname); ++#endif + } + + static int tstats_show(struct seq_file *m, void *v) +@@ -300,9 +304,9 @@ static int tstats_show(struct seq_file *m, void *v) + + seq_puts(m, "Timer Stats Version: v0.2\n"); + seq_printf(m, "Sample period: %ld.%03ld s\n", period.tv_sec, ms); +- if (atomic_read(&overflow_count)) ++ if (atomic_read_unchecked(&overflow_count)) + seq_printf(m, "Overflow: %d entries\n", +- atomic_read(&overflow_count)); ++ atomic_read_unchecked(&overflow_count)); + + for (i = 0; i < nr_entries; i++) { + entry = entries + i; +@@ -417,7 +421,11 @@ static int __init init_tstats_procfs(void) + { + struct proc_dir_entry *pe; + ++#ifdef CONFIG_GRKERNSEC_PROC_ADD ++ pe = proc_create("timer_stats", 0600, NULL, &tstats_fops); ++#else + pe = proc_create("timer_stats", 0644, NULL, &tstats_fops); ++#endif + if (!pe) + return -ENOMEM; + return 0; +diff --git a/kernel/timer.c b/kernel/timer.c +index a297ffc..5e16b0b 100644 +--- a/kernel/timer.c ++++ b/kernel/timer.c +@@ -1354,7 +1354,7 @@ void update_process_times(int user_tick) + /* + * This function runs timers and the timer-tq in bottom half context. + */ +-static void run_timer_softirq(struct softirq_action *h) ++static void run_timer_softirq(void) + { + struct tvec_base *base = __this_cpu_read(tvec_bases); + +diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c +index c0bd030..62a1927 100644 +--- a/kernel/trace/blktrace.c ++++ b/kernel/trace/blktrace.c +@@ -317,7 +317,7 @@ static ssize_t blk_dropped_read(struct file *filp, char __user *buffer, + struct blk_trace *bt = filp->private_data; + char buf[16]; + +- snprintf(buf, sizeof(buf), "%u\n", atomic_read(&bt->dropped)); ++ snprintf(buf, sizeof(buf), "%u\n", atomic_read_unchecked(&bt->dropped)); + + return simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf)); + } +@@ -375,7 +375,7 @@ static int blk_subbuf_start_callback(struct rchan_buf *buf, void *subbuf, + return 1; + + bt = buf->chan->private_data; +- atomic_inc(&bt->dropped); ++ atomic_inc_unchecked(&bt->dropped); + return 0; + } + +@@ -476,7 +476,7 @@ int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev, + + bt->dir = dir; + bt->dev = dev; +- atomic_set(&bt->dropped, 0); ++ atomic_set_unchecked(&bt->dropped, 0); + + ret = -EIO; + bt->dropped_file = debugfs_create_file("dropped", 0444, dir, bt, +diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c +index 0fa92f6..89950b2 100644 +--- a/kernel/trace/ftrace.c ++++ b/kernel/trace/ftrace.c +@@ -1800,12 +1800,17 @@ ftrace_code_disable(struct module *mod, struct dyn_ftrace *rec) + if (unlikely(ftrace_disabled)) + return 0; + ++ ret = ftrace_arch_code_modify_prepare(); ++ FTRACE_WARN_ON(ret); ++ if (ret) ++ return 0; ++ + ret = ftrace_make_nop(mod, rec, MCOUNT_ADDR); ++ FTRACE_WARN_ON(ftrace_arch_code_modify_post_process()); + if (ret) { + ftrace_bug(ret, ip); +- return 0; + } +- return 1; ++ return ret ? 0 : 1; + } + + /* +@@ -2917,7 +2922,7 @@ static void ftrace_free_entry_rcu(struct rcu_head *rhp) + + int + register_ftrace_function_probe(char *glob, struct ftrace_probe_ops *ops, +- void *data) ++ void *data) + { + struct ftrace_func_probe *entry; + struct ftrace_page *pg; +diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c +index 55e4d4c..8c915ec 100644 +--- a/kernel/trace/trace.c ++++ b/kernel/trace/trace.c +@@ -4316,10 +4316,9 @@ static const struct file_operations tracing_dyn_info_fops = { + }; + #endif + +-static struct dentry *d_tracer; +- + struct dentry *tracing_init_dentry(void) + { ++ static struct dentry *d_tracer; + static int once; + + if (d_tracer) +@@ -4339,10 +4338,9 @@ struct dentry *tracing_init_dentry(void) + return d_tracer; + } + +-static struct dentry *d_percpu; +- + struct dentry *tracing_dentry_percpu(void) + { ++ static struct dentry *d_percpu; + static int once; + struct dentry *d_tracer; + +diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c +index 29111da..d190fe2 100644 +--- a/kernel/trace/trace_events.c ++++ b/kernel/trace/trace_events.c +@@ -1308,10 +1308,6 @@ static LIST_HEAD(ftrace_module_file_list); + struct ftrace_module_file_ops { + struct list_head list; + struct module *mod; +- struct file_operations id; +- struct file_operations enable; +- struct file_operations format; +- struct file_operations filter; + }; + + static struct ftrace_module_file_ops * +@@ -1332,17 +1328,12 @@ trace_create_file_ops(struct module *mod) + + file_ops->mod = mod; + +- file_ops->id = ftrace_event_id_fops; +- file_ops->id.owner = mod; +- +- file_ops->enable = ftrace_enable_fops; +- file_ops->enable.owner = mod; +- +- file_ops->filter = ftrace_event_filter_fops; +- file_ops->filter.owner = mod; +- +- file_ops->format = ftrace_event_format_fops; +- file_ops->format.owner = mod; ++ pax_open_kernel(); ++ *(void **)&mod->trace_id.owner = mod; ++ *(void **)&mod->trace_enable.owner = mod; ++ *(void **)&mod->trace_filter.owner = mod; ++ *(void **)&mod->trace_format.owner = mod; ++ pax_close_kernel(); + + list_add(&file_ops->list, &ftrace_module_file_list); + +@@ -1366,8 +1357,8 @@ static void trace_module_add_events(struct module *mod) + + for_each_event(call, start, end) { + __trace_add_event_call(*call, mod, +- &file_ops->id, &file_ops->enable, +- &file_ops->filter, &file_ops->format); ++ &mod->trace_id, &mod->trace_enable, ++ &mod->trace_filter, &mod->trace_format); + } + } + +diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c +index 580a05e..9b31acb 100644 +--- a/kernel/trace/trace_kprobe.c ++++ b/kernel/trace/trace_kprobe.c +@@ -217,7 +217,7 @@ static __kprobes void FETCH_FUNC_NAME(memory, string)(struct pt_regs *regs, + long ret; + int maxlen = get_rloc_len(*(u32 *)dest); + u8 *dst = get_rloc_data(dest); +- u8 *src = addr; ++ const u8 __user *src = (const u8 __force_user *)addr; + mm_segment_t old_fs = get_fs(); + if (!maxlen) + return; +@@ -229,7 +229,7 @@ static __kprobes void FETCH_FUNC_NAME(memory, string)(struct pt_regs *regs, + pagefault_disable(); + do + ret = __copy_from_user_inatomic(dst++, src++, 1); +- while (dst[-1] && ret == 0 && src - (u8 *)addr < maxlen); ++ while (dst[-1] && ret == 0 && src - (const u8 __force_user *)addr < maxlen); + dst[-1] = '\0'; + pagefault_enable(); + set_fs(old_fs); +@@ -238,7 +238,7 @@ static __kprobes void FETCH_FUNC_NAME(memory, string)(struct pt_regs *regs, + ((u8 *)get_rloc_data(dest))[0] = '\0'; + *(u32 *)dest = make_data_rloc(0, get_rloc_offs(*(u32 *)dest)); + } else +- *(u32 *)dest = make_data_rloc(src - (u8 *)addr, ++ *(u32 *)dest = make_data_rloc(src - (const u8 __force_user *)addr, + get_rloc_offs(*(u32 *)dest)); + } + /* Return the length of string -- including null terminal byte */ +@@ -252,7 +252,7 @@ static __kprobes void FETCH_FUNC_NAME(memory, string_size)(struct pt_regs *regs, + set_fs(KERNEL_DS); + pagefault_disable(); + do { +- ret = __copy_from_user_inatomic(&c, (u8 *)addr + len, 1); ++ ret = __copy_from_user_inatomic(&c, (const u8 __force_user *)addr + len, 1); + len++; + } while (c && ret == 0 && len < MAX_STRING_SIZE); + pagefault_enable(); +diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c +index fd3c8aa..5f324a6 100644 +--- a/kernel/trace/trace_mmiotrace.c ++++ b/kernel/trace/trace_mmiotrace.c +@@ -24,7 +24,7 @@ struct header_iter { + static struct trace_array *mmio_trace_array; + static bool overrun_detected; + static unsigned long prev_overruns; +-static atomic_t dropped_count; ++static atomic_unchecked_t dropped_count; + + static void mmio_reset_data(struct trace_array *tr) + { +@@ -127,7 +127,7 @@ static void mmio_close(struct trace_iterator *iter) + + static unsigned long count_overruns(struct trace_iterator *iter) + { +- unsigned long cnt = atomic_xchg(&dropped_count, 0); ++ unsigned long cnt = atomic_xchg_unchecked(&dropped_count, 0); + unsigned long over = ring_buffer_overruns(iter->tr->buffer); + + if (over > prev_overruns) +@@ -317,7 +317,7 @@ static void __trace_mmiotrace_rw(struct trace_array *tr, + event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_RW, + sizeof(*entry), 0, pc); + if (!event) { +- atomic_inc(&dropped_count); ++ atomic_inc_unchecked(&dropped_count); + return; + } + entry = ring_buffer_event_data(event); +@@ -347,7 +347,7 @@ static void __trace_mmiotrace_map(struct trace_array *tr, + event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_MAP, + sizeof(*entry), 0, pc); + if (!event) { +- atomic_inc(&dropped_count); ++ atomic_inc_unchecked(&dropped_count); + return; + } + entry = ring_buffer_event_data(event); +diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c +index df611a0..10d8b32 100644 +--- a/kernel/trace/trace_output.c ++++ b/kernel/trace/trace_output.c +@@ -278,7 +278,7 @@ int trace_seq_path(struct trace_seq *s, const struct path *path) + + p = d_path(path, s->buffer + s->len, PAGE_SIZE - s->len); + if (!IS_ERR(p)) { +- p = mangle_path(s->buffer + s->len, p, "\n"); ++ p = mangle_path(s->buffer + s->len, p, "\n\\"); + if (p) { + s->len = p - s->buffer; + return 1; +diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c +index d4545f4..a9010a1 100644 +--- a/kernel/trace/trace_stack.c ++++ b/kernel/trace/trace_stack.c +@@ -53,7 +53,7 @@ static inline void check_stack(void) + return; + + /* we do not handle interrupt stacks yet */ +- if (!object_is_on_stack(&this_size)) ++ if (!object_starts_on_stack(&this_size)) + return; + + local_irq_save(flags); +diff --git a/kernel/trace/trace_workqueue.c b/kernel/trace/trace_workqueue.c +index 209b379..7f76423 100644 +--- a/kernel/trace/trace_workqueue.c ++++ b/kernel/trace/trace_workqueue.c +@@ -22,7 +22,7 @@ struct cpu_workqueue_stats { + int cpu; + pid_t pid; + /* Can be inserted from interrupt or user context, need to be atomic */ +- atomic_t inserted; ++ atomic_unchecked_t inserted; + /* + * Don't need to be atomic, works are serialized in a single workqueue thread + * on a single CPU. +@@ -60,7 +60,7 @@ probe_workqueue_insertion(void *ignore, + spin_lock_irqsave(&workqueue_cpu_stat(cpu)->lock, flags); + list_for_each_entry(node, &workqueue_cpu_stat(cpu)->list, list) { + if (node->pid == wq_thread->pid) { +- atomic_inc(&node->inserted); ++ atomic_inc_unchecked(&node->inserted); + goto found; + } + } +@@ -210,7 +210,7 @@ static int workqueue_stat_show(struct seq_file *s, void *p) + tsk = get_pid_task(pid, PIDTYPE_PID); + if (tsk) { + seq_printf(s, "%3d %6d %6u %s\n", cws->cpu, +- atomic_read(&cws->inserted), cws->executed, ++ atomic_read_unchecked(&cws->inserted), cws->executed, + tsk->comm); + put_task_struct(tsk); + } +diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug +index 6777153..8519f60 100644 +--- a/lib/Kconfig.debug ++++ b/lib/Kconfig.debug +@@ -1132,6 +1132,7 @@ config LATENCYTOP + depends on DEBUG_KERNEL + depends on STACKTRACE_SUPPORT + depends on PROC_FS ++ depends on !GRKERNSEC_HIDESYM + select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND + select KALLSYMS + select KALLSYMS_ALL +diff --git a/lib/bitmap.c b/lib/bitmap.c +index b5a8b6a..a69623c 100644 +--- a/lib/bitmap.c ++++ b/lib/bitmap.c +@@ -421,7 +421,7 @@ int __bitmap_parse(const char *buf, unsigned int buflen, + { + int c, old_c, totaldigits, ndigits, nchunks, nbits; + u32 chunk; +- const char __user __force *ubuf = (const char __user __force *)buf; ++ const char __user *ubuf = (const char __force_user *)buf; + + bitmap_zero(maskp, nmaskbits); + +@@ -506,7 +506,7 @@ int bitmap_parse_user(const char __user *ubuf, + { + if (!access_ok(VERIFY_READ, ubuf, ulen)) + return -EFAULT; +- return __bitmap_parse((const char __force *)ubuf, ++ return __bitmap_parse((const char __force_kernel *)ubuf, + ulen, 1, maskp, nmaskbits); + + } +@@ -598,7 +598,7 @@ static int __bitmap_parselist(const char *buf, unsigned int buflen, + { + unsigned a, b; + int c, old_c, totaldigits; +- const char __user __force *ubuf = (const char __user __force *)buf; ++ const char __user *ubuf = (const char __force_user *)buf; + int exp_digit, in_range; + + totaldigits = c = 0; +@@ -698,7 +698,7 @@ int bitmap_parselist_user(const char __user *ubuf, + { + if (!access_ok(VERIFY_READ, ubuf, ulen)) + return -EFAULT; +- return __bitmap_parselist((const char __force *)ubuf, ++ return __bitmap_parselist((const char __force_kernel *)ubuf, + ulen, 1, maskp, nmaskbits); + } + EXPORT_SYMBOL(bitmap_parselist_user); +diff --git a/lib/bug.c b/lib/bug.c +index a28c141..2bd3d95 100644 +--- a/lib/bug.c ++++ b/lib/bug.c +@@ -133,6 +133,8 @@ enum bug_trap_type report_bug(unsigned long bugaddr, struct pt_regs *regs) + return BUG_TRAP_TYPE_NONE; + + bug = find_bug(bugaddr); ++ if (!bug) ++ return BUG_TRAP_TYPE_NONE; + + file = NULL; + line = 0; +diff --git a/lib/debugobjects.c b/lib/debugobjects.c +index 0ab9ae8..f01ceca 100644 +--- a/lib/debugobjects.c ++++ b/lib/debugobjects.c +@@ -288,7 +288,7 @@ static void debug_object_is_on_stack(void *addr, int onstack) + if (limit > 4) + return; + +- is_on_stack = object_is_on_stack(addr); ++ is_on_stack = object_starts_on_stack(addr); + if (is_on_stack == onstack) + return; + +diff --git a/lib/devres.c b/lib/devres.c +index 80b9c76..9e32279 100644 +--- a/lib/devres.c ++++ b/lib/devres.c +@@ -80,7 +80,7 @@ EXPORT_SYMBOL(devm_ioremap_nocache); + void devm_iounmap(struct device *dev, void __iomem *addr) + { + WARN_ON(devres_destroy(dev, devm_ioremap_release, devm_ioremap_match, +- (void *)addr)); ++ (void __force *)addr)); + iounmap(addr); + } + EXPORT_SYMBOL(devm_iounmap); +@@ -192,7 +192,7 @@ void devm_ioport_unmap(struct device *dev, void __iomem *addr) + { + ioport_unmap(addr); + WARN_ON(devres_destroy(dev, devm_ioport_map_release, +- devm_ioport_map_match, (void *)addr)); ++ devm_ioport_map_match, (void __force *)addr)); + } + EXPORT_SYMBOL(devm_ioport_unmap); + +diff --git a/lib/dma-debug.c b/lib/dma-debug.c +index 13ef233..5241683 100644 +--- a/lib/dma-debug.c ++++ b/lib/dma-debug.c +@@ -924,7 +924,7 @@ out: + + static void check_for_stack(struct device *dev, void *addr) + { +- if (object_is_on_stack(addr)) ++ if (object_starts_on_stack(addr)) + err_printk(dev, NULL, "DMA-API: device driver maps memory from" + "stack [addr=%p]\n", addr); + } +diff --git a/lib/extable.c b/lib/extable.c +index 4cac81e..63e9b8f 100644 +--- a/lib/extable.c ++++ b/lib/extable.c +@@ -13,6 +13,7 @@ + #include <linux/init.h> + #include <linux/sort.h> + #include <asm/uaccess.h> ++#include <asm/pgtable.h> + + #ifndef ARCH_HAS_SORT_EXTABLE + /* +@@ -36,8 +37,10 @@ static int cmp_ex(const void *a, const void *b) + void sort_extable(struct exception_table_entry *start, + struct exception_table_entry *finish) + { ++ pax_open_kernel(); + sort(start, finish - start, sizeof(struct exception_table_entry), + cmp_ex, NULL); ++ pax_close_kernel(); + } + + #ifdef CONFIG_MODULES +diff --git a/lib/inflate.c b/lib/inflate.c +index 013a761..c28f3fc 100644 +--- a/lib/inflate.c ++++ b/lib/inflate.c +@@ -269,7 +269,7 @@ static void free(void *where) + malloc_ptr = free_mem_ptr; + } + #else +-#define malloc(a) kmalloc(a, GFP_KERNEL) ++#define malloc(a) kmalloc((a), GFP_KERNEL) + #define free(a) kfree(a) + #endif + +diff --git a/lib/ioremap.c b/lib/ioremap.c +index 0c9216c..863bd89 100644 +--- a/lib/ioremap.c ++++ b/lib/ioremap.c +@@ -38,7 +38,7 @@ static inline int ioremap_pmd_range(pud_t *pud, unsigned long addr, + unsigned long next; + + phys_addr -= addr; +- pmd = pmd_alloc(&init_mm, pud, addr); ++ pmd = pmd_alloc_kernel(&init_mm, pud, addr); + if (!pmd) + return -ENOMEM; + do { +@@ -56,7 +56,7 @@ static inline int ioremap_pud_range(pgd_t *pgd, unsigned long addr, + unsigned long next; + + phys_addr -= addr; +- pud = pud_alloc(&init_mm, pgd, addr); ++ pud = pud_alloc_kernel(&init_mm, pgd, addr); + if (!pud) + return -ENOMEM; + do { +diff --git a/lib/is_single_threaded.c b/lib/is_single_threaded.c +index bd2bea9..6b3c95e 100644 +--- a/lib/is_single_threaded.c ++++ b/lib/is_single_threaded.c +@@ -22,6 +22,9 @@ bool current_is_single_threaded(void) + struct task_struct *p, *t; + bool ret; + ++ if (!mm) ++ return true; ++ + if (atomic_read(&task->signal->live) != 1) + return false; + +diff --git a/lib/radix-tree.c b/lib/radix-tree.c +index 3ac50dc..240bb7e 100644 +--- a/lib/radix-tree.c ++++ b/lib/radix-tree.c +@@ -79,7 +79,7 @@ struct radix_tree_preload { + int nr; + struct radix_tree_node *nodes[RADIX_TREE_MAX_PATH]; + }; +-static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads) = { 0, }; ++static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads); + + static inline void *ptr_to_indirect(void *ptr) + { +diff --git a/lib/vsprintf.c b/lib/vsprintf.c +index abbabec..d5eba6c 100644 +--- a/lib/vsprintf.c ++++ b/lib/vsprintf.c +@@ -16,6 +16,9 @@ + * - scnprintf and vscnprintf + */ + ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++#define __INCLUDED_BY_HIDESYM 1 ++#endif + #include <stdarg.h> + #include <linux/module.h> /* for KSYM_SYMBOL_LEN */ + #include <linux/types.h> +@@ -433,7 +436,7 @@ char *symbol_string(char *buf, char *end, void *ptr, + char sym[KSYM_SYMBOL_LEN]; + if (ext == 'B') + sprint_backtrace(sym, value); +- else if (ext != 'f' && ext != 's') ++ else if (ext != 'f' && ext != 's' && ext != 'a') + sprint_symbol(sym, value); + else + kallsyms_lookup(value, NULL, NULL, NULL, sym); +@@ -809,7 +812,11 @@ char *netdev_feature_string(char *buf, char *end, const u8 *addr, + return number(buf, end, *(const netdev_features_t *)addr, spec); + } + ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++int kptr_restrict __read_mostly = 2; ++#else + int kptr_restrict __read_mostly; ++#endif + + /* + * Show a '%p' thing. A kernel extension is that the '%p' is followed +@@ -823,6 +830,8 @@ int kptr_restrict __read_mostly; + * - 'S' For symbolic direct pointers with offset + * - 's' For symbolic direct pointers without offset + * - 'B' For backtraced symbolic direct pointers with offset ++ * - 'A' For symbolic direct pointers with offset approved for use with GRKERNSEC_HIDESYM ++ * - 'a' For symbolic direct pointers without offset approved for use with GRKERNSEC_HIDESYM + * - 'R' For decoded struct resource, e.g., [mem 0x0-0x1f 64bit pref] + * - 'r' For raw struct resource, e.g., [mem 0x0-0x1f flags 0x201] + * - 'M' For a 6-byte MAC address, it prints the address in the +@@ -866,14 +875,25 @@ static noinline_for_stack + char *pointer(const char *fmt, char *buf, char *end, void *ptr, + struct printf_spec spec) + { ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ /* 'P' = approved pointers to copy to userland, ++ as in the /proc/kallsyms case, as we make it display nothing ++ for non-root users, and the real contents for root users ++ */ ++ if (ptr > TASK_SIZE && *fmt != 'P' && is_usercopy_object(buf)) { ++ ptr = NULL; ++ goto simple; ++ } ++#endif ++ + if (!ptr && *fmt != 'K') { + /* +- * Print (null) with the same width as a pointer so it makes ++ * Print (nil) with the same width as a pointer so it makes + * tabular output look nice. + */ + if (spec.field_width == -1) + spec.field_width = 2 * sizeof(void *); +- return string(buf, end, "(null)", spec); ++ return string(buf, end, "(nil)", spec); + } + + switch (*fmt) { +@@ -883,6 +903,13 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr, + /* Fallthrough */ + case 'S': + case 's': ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ break; ++#else ++ return symbol_string(buf, end, ptr, spec, *fmt); ++#endif ++ case 'A': ++ case 'a': + case 'B': + return symbol_string(buf, end, ptr, spec, *fmt); + case 'R': +@@ -920,6 +947,8 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr, + va_end(va); + return buf; + } ++ case 'P': ++ break; + case 'K': + /* + * %pK cannot be used in IRQ context because its test +@@ -942,6 +971,9 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr, + } + break; + } ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++simple: ++#endif + spec.flags |= SMALL; + if (spec.field_width == -1) { + spec.field_width = 2 * sizeof(void *); +@@ -1653,11 +1685,11 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf) + typeof(type) value; \ + if (sizeof(type) == 8) { \ + args = PTR_ALIGN(args, sizeof(u32)); \ +- *(u32 *)&value = *(u32 *)args; \ +- *((u32 *)&value + 1) = *(u32 *)(args + 4); \ ++ *(u32 *)&value = *(const u32 *)args; \ ++ *((u32 *)&value + 1) = *(const u32 *)(args + 4); \ + } else { \ + args = PTR_ALIGN(args, sizeof(type)); \ +- value = *(typeof(type) *)args; \ ++ value = *(const typeof(type) *)args; \ + } \ + args += sizeof(type); \ + value; \ +@@ -1720,7 +1752,7 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf) + case FORMAT_TYPE_STR: { + const char *str_arg = args; + args += strlen(str_arg) + 1; +- str = string(str, end, (char *)str_arg, spec); ++ str = string(str, end, str_arg, spec); + break; + } + +diff --git a/localversion-grsec b/localversion-grsec +new file mode 100644 +index 0000000..7cd6065 +--- /dev/null ++++ b/localversion-grsec +@@ -0,0 +1 @@ ++-grsec +diff --git a/mm/Kconfig b/mm/Kconfig +index e338407..4210331 100644 +--- a/mm/Kconfig ++++ b/mm/Kconfig +@@ -247,10 +247,10 @@ config KSM + root has set /sys/kernel/mm/ksm/run to 1 (if CONFIG_SYSFS is set). + + config DEFAULT_MMAP_MIN_ADDR +- int "Low address space to protect from user allocation" ++ int "Low address space to protect from user allocation" + depends on MMU +- default 4096 +- help ++ default 65536 ++ help + This is the portion of low virtual memory which should be protected + from userspace allocation. Keeping a user from writing to low pages + can help reduce the impact of kernel NULL pointer bugs. +@@ -280,7 +280,7 @@ config MEMORY_FAILURE + + config HWPOISON_INJECT + tristate "HWPoison pages injector" +- depends on MEMORY_FAILURE && DEBUG_KERNEL && PROC_FS ++ depends on MEMORY_FAILURE && DEBUG_KERNEL && PROC_FS && !GRKERNSEC + select PROC_PAGE_MONITOR + + config NOMMU_INITIAL_TRIM_EXCESS +diff --git a/mm/filemap.c b/mm/filemap.c +index 79c4b2b..596b417 100644 +--- a/mm/filemap.c ++++ b/mm/filemap.c +@@ -1762,7 +1762,7 @@ int generic_file_mmap(struct file * file, struct vm_area_struct * vma) + struct address_space *mapping = file->f_mapping; + + if (!mapping->a_ops->readpage) +- return -ENOEXEC; ++ return -ENODEV; + file_accessed(file); + vma->vm_ops = &generic_file_vm_ops; + vma->vm_flags |= VM_CAN_NONLINEAR; +@@ -2168,6 +2168,7 @@ inline int generic_write_checks(struct file *file, loff_t *pos, size_t *count, i + *pos = i_size_read(inode); + + if (limit != RLIM_INFINITY) { ++ gr_learn_resource(current, RLIMIT_FSIZE,*pos, 0); + if (*pos >= limit) { + send_sig(SIGXFSZ, current, 0); + return -EFBIG; +diff --git a/mm/fremap.c b/mm/fremap.c +index 9ed4fd4..c42648d 100644 +--- a/mm/fremap.c ++++ b/mm/fremap.c +@@ -155,6 +155,11 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size, + retry: + vma = find_vma(mm, start); + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (vma && (mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_MAYEXEC)) ++ goto out; ++#endif ++ + /* + * Make sure the vma is shared, that it supports prefaulting, + * and that the remapped range is valid and fully within +diff --git a/mm/highmem.c b/mm/highmem.c +index 57d82c6..e9e0552 100644 +--- a/mm/highmem.c ++++ b/mm/highmem.c +@@ -125,9 +125,10 @@ static void flush_all_zero_pkmaps(void) + * So no dangers, even with speculative execution. + */ + page = pte_page(pkmap_page_table[i]); ++ pax_open_kernel(); + pte_clear(&init_mm, (unsigned long)page_address(page), + &pkmap_page_table[i]); +- ++ pax_close_kernel(); + set_page_address(page, NULL); + need_flush = 1; + } +@@ -186,9 +187,11 @@ start: + } + } + vaddr = PKMAP_ADDR(last_pkmap_nr); ++ ++ pax_open_kernel(); + set_pte_at(&init_mm, vaddr, + &(pkmap_page_table[last_pkmap_nr]), mk_pte(page, kmap_prot)); +- ++ pax_close_kernel(); + pkmap_count[last_pkmap_nr] = 1; + set_page_address(page, (void *)vaddr); + +diff --git a/mm/huge_memory.c b/mm/huge_memory.c +index f0e5306..cb9398e 100644 +--- a/mm/huge_memory.c ++++ b/mm/huge_memory.c +@@ -733,7 +733,7 @@ out: + * run pte_offset_map on the pmd, if an huge pmd could + * materialize from under us from a different thread. + */ +- if (unlikely(__pte_alloc(mm, vma, pmd, address))) ++ if (unlikely(pmd_none(*pmd) && __pte_alloc(mm, vma, pmd, address))) + return VM_FAULT_OOM; + /* if an huge pmd materialized from under us just retry later */ + if (unlikely(pmd_trans_huge(*pmd))) +diff --git a/mm/hugetlb.c b/mm/hugetlb.c +index 263e177..3f36aec 100644 +--- a/mm/hugetlb.c ++++ b/mm/hugetlb.c +@@ -2446,6 +2446,27 @@ static int unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma, + return 1; + } + ++#ifdef CONFIG_PAX_SEGMEXEC ++static void pax_mirror_huge_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m) ++{ ++ struct mm_struct *mm = vma->vm_mm; ++ struct vm_area_struct *vma_m; ++ unsigned long address_m; ++ pte_t *ptep_m; ++ ++ vma_m = pax_find_mirror_vma(vma); ++ if (!vma_m) ++ return; ++ ++ BUG_ON(address >= SEGMEXEC_TASK_SIZE); ++ address_m = address + SEGMEXEC_TASK_SIZE; ++ ptep_m = huge_pte_offset(mm, address_m & HPAGE_MASK); ++ get_page(page_m); ++ hugepage_add_anon_rmap(page_m, vma_m, address_m); ++ set_huge_pte_at(mm, address_m, ptep_m, make_huge_pte(vma_m, page_m, 0)); ++} ++#endif ++ + /* + * Hugetlb_cow() should be called with page lock of the original hugepage held. + * Called with hugetlb_instantiation_mutex held and pte_page locked so we +@@ -2558,6 +2579,11 @@ retry_avoidcopy: + make_huge_pte(vma, new_page, 1)); + page_remove_rmap(old_page); + hugepage_add_new_anon_rmap(new_page, vma, address); ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ pax_mirror_huge_pte(vma, address, new_page); ++#endif ++ + /* Make the old page be freed below */ + new_page = old_page; + mmu_notifier_invalidate_range_end(mm, +@@ -2712,6 +2738,10 @@ retry: + && (vma->vm_flags & VM_SHARED))); + set_huge_pte_at(mm, address, ptep, new_pte); + ++#ifdef CONFIG_PAX_SEGMEXEC ++ pax_mirror_huge_pte(vma, address, page); ++#endif ++ + if ((flags & FAULT_FLAG_WRITE) && !(vma->vm_flags & VM_SHARED)) { + /* Optimization, do the COW without a second fault */ + ret = hugetlb_cow(mm, vma, address, ptep, new_pte, page); +@@ -2741,6 +2771,10 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, + static DEFINE_MUTEX(hugetlb_instantiation_mutex); + struct hstate *h = hstate_vma(vma); + ++#ifdef CONFIG_PAX_SEGMEXEC ++ struct vm_area_struct *vma_m; ++#endif ++ + address &= huge_page_mask(h); + + ptep = huge_pte_offset(mm, address); +@@ -2754,6 +2788,26 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, + VM_FAULT_SET_HINDEX(h - hstates); + } + ++#ifdef CONFIG_PAX_SEGMEXEC ++ vma_m = pax_find_mirror_vma(vma); ++ if (vma_m) { ++ unsigned long address_m; ++ ++ if (vma->vm_start > vma_m->vm_start) { ++ address_m = address; ++ address -= SEGMEXEC_TASK_SIZE; ++ vma = vma_m; ++ h = hstate_vma(vma); ++ } else ++ address_m = address + SEGMEXEC_TASK_SIZE; ++ ++ if (!huge_pte_alloc(mm, address_m, huge_page_size(h))) ++ return VM_FAULT_OOM; ++ address_m &= HPAGE_MASK; ++ unmap_hugepage_range(vma, address_m, address_m + HPAGE_SIZE, NULL); ++ } ++#endif ++ + ptep = huge_pte_alloc(mm, address, huge_page_size(h)); + if (!ptep) + return VM_FAULT_OOM; +diff --git a/mm/internal.h b/mm/internal.h +index 2189af4..f2ca332 100644 +--- a/mm/internal.h ++++ b/mm/internal.h +@@ -95,6 +95,7 @@ extern void putback_lru_page(struct page *page); + * in mm/page_alloc.c + */ + extern void __free_pages_bootmem(struct page *page, unsigned int order); ++extern void free_compound_page(struct page *page); + extern void prep_compound_page(struct page *page, unsigned long order); + #ifdef CONFIG_MEMORY_FAILURE + extern bool is_free_buddy_page(struct page *page); +diff --git a/mm/kmemleak.c b/mm/kmemleak.c +index 45eb621..6ccd8ea 100644 +--- a/mm/kmemleak.c ++++ b/mm/kmemleak.c +@@ -363,7 +363,7 @@ static void print_unreferenced(struct seq_file *seq, + + for (i = 0; i < object->trace_len; i++) { + void *ptr = (void *)object->trace[i]; +- seq_printf(seq, " [<%p>] %pS\n", ptr, ptr); ++ seq_printf(seq, " [<%p>] %pA\n", ptr, ptr); + } + } + +diff --git a/mm/maccess.c b/mm/maccess.c +index d53adf9..03a24bf 100644 +--- a/mm/maccess.c ++++ b/mm/maccess.c +@@ -26,7 +26,7 @@ long __probe_kernel_read(void *dst, const void *src, size_t size) + set_fs(KERNEL_DS); + pagefault_disable(); + ret = __copy_from_user_inatomic(dst, +- (__force const void __user *)src, size); ++ (const void __force_user *)src, size); + pagefault_enable(); + set_fs(old_fs); + +@@ -53,7 +53,7 @@ long __probe_kernel_write(void *dst, const void *src, size_t size) + + set_fs(KERNEL_DS); + pagefault_disable(); +- ret = __copy_to_user_inatomic((__force void __user *)dst, src, size); ++ ret = __copy_to_user_inatomic((void __force_user *)dst, src, size); + pagefault_enable(); + set_fs(old_fs); + +diff --git a/mm/madvise.c b/mm/madvise.c +index 55f645c..cde5320 100644 +--- a/mm/madvise.c ++++ b/mm/madvise.c +@@ -46,6 +46,10 @@ static long madvise_behavior(struct vm_area_struct * vma, + pgoff_t pgoff; + unsigned long new_flags = vma->vm_flags; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ struct vm_area_struct *vma_m; ++#endif ++ + switch (behavior) { + case MADV_NORMAL: + new_flags = new_flags & ~VM_RAND_READ & ~VM_SEQ_READ; +@@ -117,6 +121,13 @@ success: + /* + * vm_flags is protected by the mmap_sem held in write mode. + */ ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ vma_m = pax_find_mirror_vma(vma); ++ if (vma_m) ++ vma_m->vm_flags = new_flags & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT); ++#endif ++ + vma->vm_flags = new_flags; + + out: +@@ -175,6 +186,11 @@ static long madvise_dontneed(struct vm_area_struct * vma, + struct vm_area_struct ** prev, + unsigned long start, unsigned long end) + { ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ struct vm_area_struct *vma_m; ++#endif ++ + *prev = vma; + if (vma->vm_flags & (VM_LOCKED|VM_HUGETLB|VM_PFNMAP)) + return -EINVAL; +@@ -187,6 +203,21 @@ static long madvise_dontneed(struct vm_area_struct * vma, + zap_page_range(vma, start, end - start, &details); + } else + zap_page_range(vma, start, end - start, NULL); ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ vma_m = pax_find_mirror_vma(vma); ++ if (vma_m) { ++ if (unlikely(vma->vm_flags & VM_NONLINEAR)) { ++ struct zap_details details = { ++ .nonlinear_vma = vma_m, ++ .last_index = ULONG_MAX, ++ }; ++ zap_page_range(vma, start + SEGMEXEC_TASK_SIZE, end - start, &details); ++ } else ++ zap_page_range(vma, start + SEGMEXEC_TASK_SIZE, end - start, NULL); ++ } ++#endif ++ + return 0; + } + +@@ -394,6 +425,16 @@ SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior) + if (end < start) + goto out; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) { ++ if (end > SEGMEXEC_TASK_SIZE) ++ goto out; ++ } else ++#endif ++ ++ if (end > TASK_SIZE) ++ goto out; ++ + error = 0; + if (end == start) + goto out; +diff --git a/mm/memory-failure.c b/mm/memory-failure.c +index 97cc273..6ed703f 100644 +--- a/mm/memory-failure.c ++++ b/mm/memory-failure.c +@@ -61,7 +61,7 @@ int sysctl_memory_failure_early_kill __read_mostly = 0; + + int sysctl_memory_failure_recovery __read_mostly = 1; + +-atomic_long_t mce_bad_pages __read_mostly = ATOMIC_LONG_INIT(0); ++atomic_long_unchecked_t mce_bad_pages __read_mostly = ATOMIC_LONG_INIT(0); + + #if defined(CONFIG_HWPOISON_INJECT) || defined(CONFIG_HWPOISON_INJECT_MODULE) + +@@ -202,7 +202,7 @@ static int kill_proc(struct task_struct *t, unsigned long addr, int trapno, + pfn, t->comm, t->pid); + si.si_signo = SIGBUS; + si.si_errno = 0; +- si.si_addr = (void *)addr; ++ si.si_addr = (void __user *)addr; + #ifdef __ARCH_SI_TRAPNO + si.si_trapno = trapno; + #endif +@@ -1036,7 +1036,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags) + } + + nr_pages = 1 << compound_trans_order(hpage); +- atomic_long_add(nr_pages, &mce_bad_pages); ++ atomic_long_add_unchecked(nr_pages, &mce_bad_pages); + + /* + * We need/can do nothing about count=0 pages. +@@ -1066,7 +1066,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags) + if (!PageHWPoison(hpage) + || (hwpoison_filter(p) && TestClearPageHWPoison(p)) + || (p != hpage && TestSetPageHWPoison(hpage))) { +- atomic_long_sub(nr_pages, &mce_bad_pages); ++ atomic_long_sub_unchecked(nr_pages, &mce_bad_pages); + return 0; + } + set_page_hwpoison_huge_page(hpage); +@@ -1124,7 +1124,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags) + } + if (hwpoison_filter(p)) { + if (TestClearPageHWPoison(p)) +- atomic_long_sub(nr_pages, &mce_bad_pages); ++ atomic_long_sub_unchecked(nr_pages, &mce_bad_pages); + unlock_page(hpage); + put_page(hpage); + return 0; +@@ -1319,7 +1319,7 @@ int unpoison_memory(unsigned long pfn) + return 0; + } + if (TestClearPageHWPoison(p)) +- atomic_long_sub(nr_pages, &mce_bad_pages); ++ atomic_long_sub_unchecked(nr_pages, &mce_bad_pages); + pr_info("MCE: Software-unpoisoned free page %#lx\n", pfn); + return 0; + } +@@ -1333,7 +1333,7 @@ int unpoison_memory(unsigned long pfn) + */ + if (TestClearPageHWPoison(page)) { + pr_info("MCE: Software-unpoisoned page %#lx\n", pfn); +- atomic_long_sub(nr_pages, &mce_bad_pages); ++ atomic_long_sub_unchecked(nr_pages, &mce_bad_pages); + freeit = 1; + if (PageHuge(page)) + clear_page_hwpoison_huge_page(page); +@@ -1446,7 +1446,7 @@ static int soft_offline_huge_page(struct page *page, int flags) + } + done: + if (!PageHWPoison(hpage)) +- atomic_long_add(1 << compound_trans_order(hpage), &mce_bad_pages); ++ atomic_long_add_unchecked(1 << compound_trans_order(hpage), &mce_bad_pages); + set_page_hwpoison_huge_page(hpage); + dequeue_hwpoisoned_huge_page(hpage); + /* keep elevated page count for bad page */ +@@ -1577,7 +1577,7 @@ int soft_offline_page(struct page *page, int flags) + return ret; + + done: +- atomic_long_add(1, &mce_bad_pages); ++ atomic_long_add_unchecked(1, &mce_bad_pages); + SetPageHWPoison(page); + /* keep elevated page count for bad page */ + return ret; +diff --git a/mm/memory.c b/mm/memory.c +index 6105f47..3363489 100644 +--- a/mm/memory.c ++++ b/mm/memory.c +@@ -434,8 +434,12 @@ static inline void free_pmd_range(struct mmu_gather *tlb, pud_t *pud, + return; + + pmd = pmd_offset(pud, start); ++ ++#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_PER_CPU_PGD) + pud_clear(pud); + pmd_free_tlb(tlb, pmd, start); ++#endif ++ + } + + static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd, +@@ -466,9 +470,12 @@ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd, + if (end - 1 > ceiling - 1) + return; + ++#if !defined(CONFIG_X86_64) || !defined(CONFIG_PAX_PER_CPU_PGD) + pud = pud_offset(pgd, start); + pgd_clear(pgd); + pud_free_tlb(tlb, pud, start); ++#endif ++ + } + + /* +@@ -1597,12 +1604,6 @@ no_page_table: + return page; + } + +-static inline int stack_guard_page(struct vm_area_struct *vma, unsigned long addr) +-{ +- return stack_guard_page_start(vma, addr) || +- stack_guard_page_end(vma, addr+PAGE_SIZE); +-} +- + /** + * __get_user_pages() - pin user pages in memory + * @tsk: task_struct of target task +@@ -1675,10 +1676,10 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, + (VM_MAYREAD | VM_MAYWRITE) : (VM_READ | VM_WRITE); + i = 0; + +- do { ++ while (nr_pages) { + struct vm_area_struct *vma; + +- vma = find_extend_vma(mm, start); ++ vma = find_vma(mm, start); + if (!vma && in_gate_area(mm, start)) { + unsigned long pg = start & PAGE_MASK; + pgd_t *pgd; +@@ -1726,7 +1727,7 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, + goto next_page; + } + +- if (!vma || ++ if (!vma || start < vma->vm_start || + (vma->vm_flags & (VM_IO | VM_PFNMAP)) || + !(vm_flags & vma->vm_flags)) + return i ? : -EFAULT; +@@ -1753,11 +1754,6 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, + int ret; + unsigned int fault_flags = 0; + +- /* For mlock, just skip the stack guard page. */ +- if (foll_flags & FOLL_MLOCK) { +- if (stack_guard_page(vma, start)) +- goto next_page; +- } + if (foll_flags & FOLL_WRITE) + fault_flags |= FAULT_FLAG_WRITE; + if (nonblocking) +@@ -1831,7 +1827,7 @@ next_page: + start += PAGE_SIZE; + nr_pages--; + } while (nr_pages && start < vma->vm_end); +- } while (nr_pages); ++ } + return i; + } + EXPORT_SYMBOL(__get_user_pages); +@@ -2038,6 +2034,10 @@ static int insert_page(struct vm_area_struct *vma, unsigned long addr, + page_add_file_rmap(page); + set_pte_at(mm, addr, pte, mk_pte(page, prot)); + ++#ifdef CONFIG_PAX_SEGMEXEC ++ pax_mirror_file_pte(vma, addr, page, ptl); ++#endif ++ + retval = 0; + pte_unmap_unlock(pte, ptl); + return retval; +@@ -2072,10 +2072,22 @@ out: + int vm_insert_page(struct vm_area_struct *vma, unsigned long addr, + struct page *page) + { ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ struct vm_area_struct *vma_m; ++#endif ++ + if (addr < vma->vm_start || addr >= vma->vm_end) + return -EFAULT; + if (!page_count(page)) + return -EINVAL; ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ vma_m = pax_find_mirror_vma(vma); ++ if (vma_m) ++ vma_m->vm_flags |= VM_INSERTPAGE; ++#endif ++ + vma->vm_flags |= VM_INSERTPAGE; + return insert_page(vma, addr, page, vma->vm_page_prot); + } +@@ -2161,6 +2173,7 @@ int vm_insert_mixed(struct vm_area_struct *vma, unsigned long addr, + unsigned long pfn) + { + BUG_ON(!(vma->vm_flags & VM_MIXEDMAP)); ++ BUG_ON(vma->vm_mirror); + + if (addr < vma->vm_start || addr >= vma->vm_end) + return -EFAULT; +@@ -2368,7 +2381,9 @@ static int apply_to_pmd_range(struct mm_struct *mm, pud_t *pud, + + BUG_ON(pud_huge(*pud)); + +- pmd = pmd_alloc(mm, pud, addr); ++ pmd = (mm == &init_mm) ? ++ pmd_alloc_kernel(mm, pud, addr) : ++ pmd_alloc(mm, pud, addr); + if (!pmd) + return -ENOMEM; + do { +@@ -2388,7 +2403,9 @@ static int apply_to_pud_range(struct mm_struct *mm, pgd_t *pgd, + unsigned long next; + int err; + +- pud = pud_alloc(mm, pgd, addr); ++ pud = (mm == &init_mm) ? ++ pud_alloc_kernel(mm, pgd, addr) : ++ pud_alloc(mm, pgd, addr); + if (!pud) + return -ENOMEM; + do { +@@ -2476,6 +2493,186 @@ static inline void cow_user_page(struct page *dst, struct page *src, unsigned lo + copy_user_highpage(dst, src, va, vma); + } + ++#ifdef CONFIG_PAX_SEGMEXEC ++static void pax_unmap_mirror_pte(struct vm_area_struct *vma, unsigned long address, pmd_t *pmd) ++{ ++ struct mm_struct *mm = vma->vm_mm; ++ spinlock_t *ptl; ++ pte_t *pte, entry; ++ ++ pte = pte_offset_map_lock(mm, pmd, address, &ptl); ++ entry = *pte; ++ if (!pte_present(entry)) { ++ if (!pte_none(entry)) { ++ BUG_ON(pte_file(entry)); ++ free_swap_and_cache(pte_to_swp_entry(entry)); ++ pte_clear_not_present_full(mm, address, pte, 0); ++ } ++ } else { ++ struct page *page; ++ ++ flush_cache_page(vma, address, pte_pfn(entry)); ++ entry = ptep_clear_flush(vma, address, pte); ++ BUG_ON(pte_dirty(entry)); ++ page = vm_normal_page(vma, address, entry); ++ if (page) { ++ update_hiwater_rss(mm); ++ if (PageAnon(page)) ++ dec_mm_counter_fast(mm, MM_ANONPAGES); ++ else ++ dec_mm_counter_fast(mm, MM_FILEPAGES); ++ page_remove_rmap(page); ++ page_cache_release(page); ++ } ++ } ++ pte_unmap_unlock(pte, ptl); ++} ++ ++/* PaX: if vma is mirrored, synchronize the mirror's PTE ++ * ++ * the ptl of the lower mapped page is held on entry and is not released on exit ++ * or inside to ensure atomic changes to the PTE states (swapout, mremap, munmap, etc) ++ */ ++static void pax_mirror_anon_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl) ++{ ++ struct mm_struct *mm = vma->vm_mm; ++ unsigned long address_m; ++ spinlock_t *ptl_m; ++ struct vm_area_struct *vma_m; ++ pmd_t *pmd_m; ++ pte_t *pte_m, entry_m; ++ ++ BUG_ON(!page_m || !PageAnon(page_m)); ++ ++ vma_m = pax_find_mirror_vma(vma); ++ if (!vma_m) ++ return; ++ ++ BUG_ON(!PageLocked(page_m)); ++ BUG_ON(address >= SEGMEXEC_TASK_SIZE); ++ address_m = address + SEGMEXEC_TASK_SIZE; ++ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m); ++ pte_m = pte_offset_map(pmd_m, address_m); ++ ptl_m = pte_lockptr(mm, pmd_m); ++ if (ptl != ptl_m) { ++ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING); ++ if (!pte_none(*pte_m)) ++ goto out; ++ } ++ ++ entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot); ++ page_cache_get(page_m); ++ page_add_anon_rmap(page_m, vma_m, address_m); ++ inc_mm_counter_fast(mm, MM_ANONPAGES); ++ set_pte_at(mm, address_m, pte_m, entry_m); ++ update_mmu_cache(vma_m, address_m, entry_m); ++out: ++ if (ptl != ptl_m) ++ spin_unlock(ptl_m); ++ pte_unmap(pte_m); ++ unlock_page(page_m); ++} ++ ++void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl) ++{ ++ struct mm_struct *mm = vma->vm_mm; ++ unsigned long address_m; ++ spinlock_t *ptl_m; ++ struct vm_area_struct *vma_m; ++ pmd_t *pmd_m; ++ pte_t *pte_m, entry_m; ++ ++ BUG_ON(!page_m || PageAnon(page_m)); ++ ++ vma_m = pax_find_mirror_vma(vma); ++ if (!vma_m) ++ return; ++ ++ BUG_ON(address >= SEGMEXEC_TASK_SIZE); ++ address_m = address + SEGMEXEC_TASK_SIZE; ++ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m); ++ pte_m = pte_offset_map(pmd_m, address_m); ++ ptl_m = pte_lockptr(mm, pmd_m); ++ if (ptl != ptl_m) { ++ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING); ++ if (!pte_none(*pte_m)) ++ goto out; ++ } ++ ++ entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot); ++ page_cache_get(page_m); ++ page_add_file_rmap(page_m); ++ inc_mm_counter_fast(mm, MM_FILEPAGES); ++ set_pte_at(mm, address_m, pte_m, entry_m); ++ update_mmu_cache(vma_m, address_m, entry_m); ++out: ++ if (ptl != ptl_m) ++ spin_unlock(ptl_m); ++ pte_unmap(pte_m); ++} ++ ++static void pax_mirror_pfn_pte(struct vm_area_struct *vma, unsigned long address, unsigned long pfn_m, spinlock_t *ptl) ++{ ++ struct mm_struct *mm = vma->vm_mm; ++ unsigned long address_m; ++ spinlock_t *ptl_m; ++ struct vm_area_struct *vma_m; ++ pmd_t *pmd_m; ++ pte_t *pte_m, entry_m; ++ ++ vma_m = pax_find_mirror_vma(vma); ++ if (!vma_m) ++ return; ++ ++ BUG_ON(address >= SEGMEXEC_TASK_SIZE); ++ address_m = address + SEGMEXEC_TASK_SIZE; ++ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m); ++ pte_m = pte_offset_map(pmd_m, address_m); ++ ptl_m = pte_lockptr(mm, pmd_m); ++ if (ptl != ptl_m) { ++ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING); ++ if (!pte_none(*pte_m)) ++ goto out; ++ } ++ ++ entry_m = pfn_pte(pfn_m, vma_m->vm_page_prot); ++ set_pte_at(mm, address_m, pte_m, entry_m); ++out: ++ if (ptl != ptl_m) ++ spin_unlock(ptl_m); ++ pte_unmap(pte_m); ++} ++ ++static void pax_mirror_pte(struct vm_area_struct *vma, unsigned long address, pte_t *pte, pmd_t *pmd, spinlock_t *ptl) ++{ ++ struct page *page_m; ++ pte_t entry; ++ ++ if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC)) ++ goto out; ++ ++ entry = *pte; ++ page_m = vm_normal_page(vma, address, entry); ++ if (!page_m) ++ pax_mirror_pfn_pte(vma, address, pte_pfn(entry), ptl); ++ else if (PageAnon(page_m)) { ++ if (pax_find_mirror_vma(vma)) { ++ pte_unmap_unlock(pte, ptl); ++ lock_page(page_m); ++ pte = pte_offset_map_lock(vma->vm_mm, pmd, address, &ptl); ++ if (pte_same(entry, *pte)) ++ pax_mirror_anon_pte(vma, address, page_m, ptl); ++ else ++ unlock_page(page_m); ++ } ++ } else ++ pax_mirror_file_pte(vma, address, page_m, ptl); ++ ++out: ++ pte_unmap_unlock(pte, ptl); ++} ++#endif ++ + /* + * This routine handles present pages, when users try to write + * to a shared page. It is done by copying the page to a new address +@@ -2687,6 +2884,12 @@ gotten: + */ + page_table = pte_offset_map_lock(mm, pmd, address, &ptl); + if (likely(pte_same(*page_table, orig_pte))) { ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (pax_find_mirror_vma(vma)) ++ BUG_ON(!trylock_page(new_page)); ++#endif ++ + if (old_page) { + if (!PageAnon(old_page)) { + dec_mm_counter_fast(mm, MM_FILEPAGES); +@@ -2738,6 +2941,10 @@ gotten: + page_remove_rmap(old_page); + } + ++#ifdef CONFIG_PAX_SEGMEXEC ++ pax_mirror_anon_pte(vma, address, new_page, ptl); ++#endif ++ + /* Free the old page.. */ + new_page = old_page; + ret |= VM_FAULT_WRITE; +@@ -3017,6 +3224,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma, + swap_free(entry); + if (vm_swap_full() || (vma->vm_flags & VM_LOCKED) || PageMlocked(page)) + try_to_free_swap(page); ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if ((flags & FAULT_FLAG_WRITE) || !pax_find_mirror_vma(vma)) ++#endif ++ + unlock_page(page); + if (swapcache) { + /* +@@ -3040,6 +3252,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma, + + /* No need to invalidate - it was non-present before */ + update_mmu_cache(vma, address, page_table); ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ pax_mirror_anon_pte(vma, address, page, ptl); ++#endif ++ + unlock: + pte_unmap_unlock(page_table, ptl); + out: +@@ -3059,40 +3276,6 @@ out_release: + } + + /* +- * This is like a special single-page "expand_{down|up}wards()", +- * except we must first make sure that 'address{-|+}PAGE_SIZE' +- * doesn't hit another vma. +- */ +-static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned long address) +-{ +- address &= PAGE_MASK; +- if ((vma->vm_flags & VM_GROWSDOWN) && address == vma->vm_start) { +- struct vm_area_struct *prev = vma->vm_prev; +- +- /* +- * Is there a mapping abutting this one below? +- * +- * That's only ok if it's the same stack mapping +- * that has gotten split.. +- */ +- if (prev && prev->vm_end == address) +- return prev->vm_flags & VM_GROWSDOWN ? 0 : -ENOMEM; +- +- expand_downwards(vma, address - PAGE_SIZE); +- } +- if ((vma->vm_flags & VM_GROWSUP) && address + PAGE_SIZE == vma->vm_end) { +- struct vm_area_struct *next = vma->vm_next; +- +- /* As VM_GROWSDOWN but s/below/above/ */ +- if (next && next->vm_start == address + PAGE_SIZE) +- return next->vm_flags & VM_GROWSUP ? 0 : -ENOMEM; +- +- expand_upwards(vma, address + PAGE_SIZE); +- } +- return 0; +-} +- +-/* + * We enter with non-exclusive mmap_sem (to exclude vma changes, + * but allow concurrent faults), and pte mapped but not yet locked. + * We return with mmap_sem still held, but pte unmapped and unlocked. +@@ -3101,27 +3284,23 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma, + unsigned long address, pte_t *page_table, pmd_t *pmd, + unsigned int flags) + { +- struct page *page; ++ struct page *page = NULL; + spinlock_t *ptl; + pte_t entry; + +- pte_unmap(page_table); +- +- /* Check if we need to add a guard page to the stack */ +- if (check_stack_guard_page(vma, address) < 0) +- return VM_FAULT_SIGBUS; +- +- /* Use the zero-page for reads */ + if (!(flags & FAULT_FLAG_WRITE)) { + entry = pte_mkspecial(pfn_pte(my_zero_pfn(address), + vma->vm_page_prot)); +- page_table = pte_offset_map_lock(mm, pmd, address, &ptl); ++ ptl = pte_lockptr(mm, pmd); ++ spin_lock(ptl); + if (!pte_none(*page_table)) + goto unlock; + goto setpte; + } + + /* Allocate our own private page. */ ++ pte_unmap(page_table); ++ + if (unlikely(anon_vma_prepare(vma))) + goto oom; + page = alloc_zeroed_user_highpage_movable(vma, address); +@@ -3140,6 +3319,11 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma, + if (!pte_none(*page_table)) + goto release; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (pax_find_mirror_vma(vma)) ++ BUG_ON(!trylock_page(page)); ++#endif ++ + inc_mm_counter_fast(mm, MM_ANONPAGES); + page_add_new_anon_rmap(page, vma, address); + setpte: +@@ -3147,6 +3331,12 @@ setpte: + + /* No need to invalidate - it was non-present before */ + update_mmu_cache(vma, address, page_table); ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (page) ++ pax_mirror_anon_pte(vma, address, page, ptl); ++#endif ++ + unlock: + pte_unmap_unlock(page_table, ptl); + return 0; +@@ -3290,6 +3480,12 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma, + */ + /* Only go through if we didn't race with anybody else... */ + if (likely(pte_same(*page_table, orig_pte))) { ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (anon && pax_find_mirror_vma(vma)) ++ BUG_ON(!trylock_page(page)); ++#endif ++ + flush_icache_page(vma, page); + entry = mk_pte(page, vma->vm_page_prot); + if (flags & FAULT_FLAG_WRITE) +@@ -3309,6 +3505,14 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma, + + /* no need to invalidate: a not-present page won't be cached */ + update_mmu_cache(vma, address, page_table); ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (anon) ++ pax_mirror_anon_pte(vma, address, page, ptl); ++ else ++ pax_mirror_file_pte(vma, address, page, ptl); ++#endif ++ + } else { + if (cow_page) + mem_cgroup_uncharge_page(cow_page); +@@ -3462,6 +3666,12 @@ int handle_pte_fault(struct mm_struct *mm, + if (flags & FAULT_FLAG_WRITE) + flush_tlb_fix_spurious_fault(vma, address); + } ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ pax_mirror_pte(vma, address, pte, pmd, ptl); ++ return 0; ++#endif ++ + unlock: + pte_unmap_unlock(pte, ptl); + return 0; +@@ -3478,6 +3688,10 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma, + pmd_t *pmd; + pte_t *pte; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ struct vm_area_struct *vma_m; ++#endif ++ + __set_current_state(TASK_RUNNING); + + count_vm_event(PGFAULT); +@@ -3489,6 +3703,34 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma, + if (unlikely(is_vm_hugetlb_page(vma))) + return hugetlb_fault(mm, vma, address, flags); + ++#ifdef CONFIG_PAX_SEGMEXEC ++ vma_m = pax_find_mirror_vma(vma); ++ if (vma_m) { ++ unsigned long address_m; ++ pgd_t *pgd_m; ++ pud_t *pud_m; ++ pmd_t *pmd_m; ++ ++ if (vma->vm_start > vma_m->vm_start) { ++ address_m = address; ++ address -= SEGMEXEC_TASK_SIZE; ++ vma = vma_m; ++ } else ++ address_m = address + SEGMEXEC_TASK_SIZE; ++ ++ pgd_m = pgd_offset(mm, address_m); ++ pud_m = pud_alloc(mm, pgd_m, address_m); ++ if (!pud_m) ++ return VM_FAULT_OOM; ++ pmd_m = pmd_alloc(mm, pud_m, address_m); ++ if (!pmd_m) ++ return VM_FAULT_OOM; ++ if (!pmd_present(*pmd_m) && __pte_alloc(mm, vma_m, pmd_m, address_m)) ++ return VM_FAULT_OOM; ++ pax_unmap_mirror_pte(vma_m, address_m, pmd_m); ++ } ++#endif ++ + pgd = pgd_offset(mm, address); + pud = pud_alloc(mm, pgd, address); + if (!pud) +@@ -3518,7 +3760,7 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma, + * run pte_offset_map on the pmd, if an huge pmd could + * materialize from under us from a different thread. + */ +- if (unlikely(pmd_none(*pmd)) && __pte_alloc(mm, vma, pmd, address)) ++ if (unlikely(pmd_none(*pmd) && __pte_alloc(mm, vma, pmd, address))) + return VM_FAULT_OOM; + /* if an huge pmd materialized from under us just retry later */ + if (unlikely(pmd_trans_huge(*pmd))) +@@ -3555,6 +3797,23 @@ int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address) + spin_unlock(&mm->page_table_lock); + return 0; + } ++ ++int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address) ++{ ++ pud_t *new = pud_alloc_one(mm, address); ++ if (!new) ++ return -ENOMEM; ++ ++ smp_wmb(); /* See comment in __pte_alloc */ ++ ++ spin_lock(&mm->page_table_lock); ++ if (pgd_present(*pgd)) /* Another has populated it */ ++ pud_free(mm, new); ++ else ++ pgd_populate_kernel(mm, pgd, new); ++ spin_unlock(&mm->page_table_lock); ++ return 0; ++} + #endif /* __PAGETABLE_PUD_FOLDED */ + + #ifndef __PAGETABLE_PMD_FOLDED +@@ -3585,6 +3844,30 @@ int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address) + spin_unlock(&mm->page_table_lock); + return 0; + } ++ ++int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address) ++{ ++ pmd_t *new = pmd_alloc_one(mm, address); ++ if (!new) ++ return -ENOMEM; ++ ++ smp_wmb(); /* See comment in __pte_alloc */ ++ ++ spin_lock(&mm->page_table_lock); ++#ifndef __ARCH_HAS_4LEVEL_HACK ++ if (pud_present(*pud)) /* Another has populated it */ ++ pmd_free(mm, new); ++ else ++ pud_populate_kernel(mm, pud, new); ++#else ++ if (pgd_present(*pud)) /* Another has populated it */ ++ pmd_free(mm, new); ++ else ++ pgd_populate_kernel(mm, pud, new); ++#endif /* __ARCH_HAS_4LEVEL_HACK */ ++ spin_unlock(&mm->page_table_lock); ++ return 0; ++} + #endif /* __PAGETABLE_PMD_FOLDED */ + + int make_pages_present(unsigned long addr, unsigned long end) +@@ -3622,7 +3905,7 @@ static int __init gate_vma_init(void) + gate_vma.vm_start = FIXADDR_USER_START; + gate_vma.vm_end = FIXADDR_USER_END; + gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC; +- gate_vma.vm_page_prot = __P101; ++ gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags); + + return 0; + } +diff --git a/mm/mempolicy.c b/mm/mempolicy.c +index bf5b485..e44c2cb 100644 +--- a/mm/mempolicy.c ++++ b/mm/mempolicy.c +@@ -619,6 +619,10 @@ static int mbind_range(struct mm_struct *mm, unsigned long start, + unsigned long vmstart; + unsigned long vmend; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ struct vm_area_struct *vma_m; ++#endif ++ + vma = find_vma(mm, start); + if (!vma || vma->vm_start > start) + return -EFAULT; +@@ -672,6 +676,16 @@ static int mbind_range(struct mm_struct *mm, unsigned long start, + if (err) + goto out; + } ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ vma_m = pax_find_mirror_vma(vma); ++ if (vma_m && vma_m->vm_ops && vma_m->vm_ops->set_policy) { ++ err = vma_m->vm_ops->set_policy(vma_m, new_pol); ++ if (err) ++ goto out; ++ } ++#endif ++ + } + + out: +@@ -1105,6 +1119,17 @@ static long do_mbind(unsigned long start, unsigned long len, + + if (end < start) + return -EINVAL; ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (mm->pax_flags & MF_PAX_SEGMEXEC) { ++ if (end > SEGMEXEC_TASK_SIZE) ++ return -EINVAL; ++ } else ++#endif ++ ++ if (end > TASK_SIZE) ++ return -EINVAL; ++ + if (end == start) + return 0; + +@@ -1328,8 +1353,7 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode, + */ + tcred = __task_cred(task); + if (cred->euid != tcred->suid && cred->euid != tcred->uid && +- cred->uid != tcred->suid && cred->uid != tcred->uid && +- !capable(CAP_SYS_NICE)) { ++ cred->uid != tcred->suid && !capable(CAP_SYS_NICE)) { + rcu_read_unlock(); + err = -EPERM; + goto out_put; +@@ -1360,6 +1384,15 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode, + goto out; + } + ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ if (mm != current->mm && ++ (mm->pax_flags & MF_PAX_RANDMMAP || mm->pax_flags & MF_PAX_SEGMEXEC)) { ++ mmput(mm); ++ err = -EPERM; ++ goto out; ++ } ++#endif ++ + err = do_migrate_pages(mm, old, new, + capable(CAP_SYS_NICE) ? MPOL_MF_MOVE_ALL : MPOL_MF_MOVE); + +diff --git a/mm/mlock.c b/mm/mlock.c +index ef726e8..cd7f1ec 100644 +--- a/mm/mlock.c ++++ b/mm/mlock.c +@@ -13,6 +13,7 @@ + #include <linux/pagemap.h> + #include <linux/mempolicy.h> + #include <linux/syscalls.h> ++#include <linux/security.h> + #include <linux/sched.h> + #include <linux/export.h> + #include <linux/rmap.h> +@@ -376,7 +377,7 @@ static int do_mlock(unsigned long start, size_t len, int on) + { + unsigned long nstart, end, tmp; + struct vm_area_struct * vma, * prev; +- int error; ++ int error = 0; + + VM_BUG_ON(start & ~PAGE_MASK); + VM_BUG_ON(len != PAGE_ALIGN(len)); +@@ -385,6 +386,9 @@ static int do_mlock(unsigned long start, size_t len, int on) + return -EINVAL; + if (end == start) + return 0; ++ if (end > TASK_SIZE) ++ return -EINVAL; ++ + vma = find_vma(current->mm, start); + if (!vma || vma->vm_start > start) + return -ENOMEM; +@@ -396,6 +400,11 @@ static int do_mlock(unsigned long start, size_t len, int on) + for (nstart = start ; ; ) { + vm_flags_t newflags; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE)) ++ break; ++#endif ++ + /* Here we know that vma->vm_start <= nstart < vma->vm_end. */ + + newflags = vma->vm_flags | VM_LOCKED; +@@ -501,6 +510,7 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len) + lock_limit >>= PAGE_SHIFT; + + /* check against resource limits */ ++ gr_learn_resource(current, RLIMIT_MEMLOCK, (current->mm->locked_vm << PAGE_SHIFT) + len, 1); + if ((locked <= lock_limit) || capable(CAP_IPC_LOCK)) + error = do_mlock(start, len, 1); + up_write(&current->mm->mmap_sem); +@@ -524,17 +534,23 @@ SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len) + static int do_mlockall(int flags) + { + struct vm_area_struct * vma, * prev = NULL; +- unsigned int def_flags = 0; + + if (flags & MCL_FUTURE) +- def_flags = VM_LOCKED; +- current->mm->def_flags = def_flags; ++ current->mm->def_flags |= VM_LOCKED; ++ else ++ current->mm->def_flags &= ~VM_LOCKED; + if (flags == MCL_FUTURE) + goto out; + + for (vma = current->mm->mmap; vma ; vma = prev->vm_next) { + vm_flags_t newflags; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE)) ++ break; ++#endif ++ ++ BUG_ON(vma->vm_end > TASK_SIZE); + newflags = vma->vm_flags | VM_LOCKED; + if (!(flags & MCL_CURRENT)) + newflags &= ~VM_LOCKED; +@@ -567,6 +583,7 @@ SYSCALL_DEFINE1(mlockall, int, flags) + lock_limit >>= PAGE_SHIFT; + + ret = -ENOMEM; ++ gr_learn_resource(current, RLIMIT_MEMLOCK, current->mm->total_vm << PAGE_SHIFT, 1); + if (!(flags & MCL_CURRENT) || (current->mm->total_vm <= lock_limit) || + capable(CAP_IPC_LOCK)) + ret = do_mlockall(flags); +diff --git a/mm/mmap.c b/mm/mmap.c +index 848ef52..d2b586c 100644 +--- a/mm/mmap.c ++++ b/mm/mmap.c +@@ -46,6 +46,16 @@ + #define arch_rebalance_pgtables(addr, len) (addr) + #endif + ++static inline void verify_mm_writelocked(struct mm_struct *mm) ++{ ++#if defined(CONFIG_DEBUG_VM) || defined(CONFIG_PAX) ++ if (unlikely(down_read_trylock(&mm->mmap_sem))) { ++ up_read(&mm->mmap_sem); ++ BUG(); ++ } ++#endif ++} ++ + static void unmap_region(struct mm_struct *mm, + struct vm_area_struct *vma, struct vm_area_struct *prev, + unsigned long start, unsigned long end); +@@ -71,22 +81,32 @@ static void unmap_region(struct mm_struct *mm, + * x: (no) no x: (no) yes x: (no) yes x: (yes) yes + * + */ +-pgprot_t protection_map[16] = { ++pgprot_t protection_map[16] __read_only = { + __P000, __P001, __P010, __P011, __P100, __P101, __P110, __P111, + __S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111 + }; + +-pgprot_t vm_get_page_prot(unsigned long vm_flags) ++pgprot_t vm_get_page_prot(vm_flags_t vm_flags) + { +- return __pgprot(pgprot_val(protection_map[vm_flags & ++ pgprot_t prot = __pgprot(pgprot_val(protection_map[vm_flags & + (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]) | + pgprot_val(arch_vm_get_page_prot(vm_flags))); ++ ++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32) ++ if (!(__supported_pte_mask & _PAGE_NX) && ++ (vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC && ++ (vm_flags & (VM_READ | VM_WRITE))) ++ prot = __pgprot(pte_val(pte_exprotect(__pte(pgprot_val(prot))))); ++#endif ++ ++ return prot; + } + EXPORT_SYMBOL(vm_get_page_prot); + + int sysctl_overcommit_memory __read_mostly = OVERCOMMIT_GUESS; /* heuristic overcommit */ + int sysctl_overcommit_ratio __read_mostly = 50; /* default is 50% */ + int sysctl_max_map_count __read_mostly = DEFAULT_MAX_MAP_COUNT; ++unsigned long sysctl_heap_stack_gap __read_mostly = 64*1024; + /* + * Make sure vm_committed_as in one cacheline and not cacheline shared with + * other variables. It can be updated by several CPUs frequently. +@@ -228,6 +248,7 @@ static struct vm_area_struct *remove_vma(struct vm_area_struct *vma) + struct vm_area_struct *next = vma->vm_next; + + might_sleep(); ++ BUG_ON(vma->vm_mirror); + if (vma->vm_ops && vma->vm_ops->close) + vma->vm_ops->close(vma); + if (vma->vm_file) { +@@ -274,6 +295,7 @@ SYSCALL_DEFINE1(brk, unsigned long, brk) + * not page aligned -Ram Gupta + */ + rlim = rlimit(RLIMIT_DATA); ++ gr_learn_resource(current, RLIMIT_DATA, (brk - mm->start_brk) + (mm->end_data - mm->start_data), 1); + if (rlim < RLIM_INFINITY && (brk - mm->start_brk) + + (mm->end_data - mm->start_data) > rlim) + goto out; +@@ -690,6 +712,12 @@ static int + can_vma_merge_before(struct vm_area_struct *vma, unsigned long vm_flags, + struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff) + { ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_start == SEGMEXEC_TASK_SIZE) ++ return 0; ++#endif ++ + if (is_mergeable_vma(vma, file, vm_flags) && + is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) { + if (vma->vm_pgoff == vm_pgoff) +@@ -709,6 +737,12 @@ static int + can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags, + struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff) + { ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end == SEGMEXEC_TASK_SIZE) ++ return 0; ++#endif ++ + if (is_mergeable_vma(vma, file, vm_flags) && + is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) { + pgoff_t vm_pglen; +@@ -751,13 +785,20 @@ can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags, + struct vm_area_struct *vma_merge(struct mm_struct *mm, + struct vm_area_struct *prev, unsigned long addr, + unsigned long end, unsigned long vm_flags, +- struct anon_vma *anon_vma, struct file *file, ++ struct anon_vma *anon_vma, struct file *file, + pgoff_t pgoff, struct mempolicy *policy) + { + pgoff_t pglen = (end - addr) >> PAGE_SHIFT; + struct vm_area_struct *area, *next; + int err; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE, end_m = end + SEGMEXEC_TASK_SIZE; ++ struct vm_area_struct *area_m = NULL, *next_m = NULL, *prev_m = NULL; ++ ++ BUG_ON((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE < end); ++#endif ++ + /* + * We later require that vma->vm_flags == vm_flags, + * so this tests vma->vm_flags & VM_SPECIAL, too. +@@ -773,6 +814,15 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm, + if (next && next->vm_end == end) /* cases 6, 7, 8 */ + next = next->vm_next; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (prev) ++ prev_m = pax_find_mirror_vma(prev); ++ if (area) ++ area_m = pax_find_mirror_vma(area); ++ if (next) ++ next_m = pax_find_mirror_vma(next); ++#endif ++ + /* + * Can it merge with the predecessor? + */ +@@ -792,9 +842,24 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm, + /* cases 1, 6 */ + err = vma_adjust(prev, prev->vm_start, + next->vm_end, prev->vm_pgoff, NULL); +- } else /* cases 2, 5, 7 */ ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (!err && prev_m) ++ err = vma_adjust(prev_m, prev_m->vm_start, ++ next_m->vm_end, prev_m->vm_pgoff, NULL); ++#endif ++ ++ } else { /* cases 2, 5, 7 */ + err = vma_adjust(prev, prev->vm_start, + end, prev->vm_pgoff, NULL); ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (!err && prev_m) ++ err = vma_adjust(prev_m, prev_m->vm_start, ++ end_m, prev_m->vm_pgoff, NULL); ++#endif ++ ++ } + if (err) + return NULL; + khugepaged_enter_vma_merge(prev); +@@ -808,12 +873,27 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm, + mpol_equal(policy, vma_policy(next)) && + can_vma_merge_before(next, vm_flags, + anon_vma, file, pgoff+pglen)) { +- if (prev && addr < prev->vm_end) /* case 4 */ ++ if (prev && addr < prev->vm_end) { /* case 4 */ + err = vma_adjust(prev, prev->vm_start, + addr, prev->vm_pgoff, NULL); +- else /* cases 3, 8 */ ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (!err && prev_m) ++ err = vma_adjust(prev_m, prev_m->vm_start, ++ addr_m, prev_m->vm_pgoff, NULL); ++#endif ++ ++ } else { /* cases 3, 8 */ + err = vma_adjust(area, addr, next->vm_end, + next->vm_pgoff - pglen, NULL); ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (!err && area_m) ++ err = vma_adjust(area_m, addr_m, next_m->vm_end, ++ next_m->vm_pgoff - pglen, NULL); ++#endif ++ ++ } + if (err) + return NULL; + khugepaged_enter_vma_merge(area); +@@ -922,14 +1002,11 @@ none: + void vm_stat_account(struct mm_struct *mm, unsigned long flags, + struct file *file, long pages) + { +- const unsigned long stack_flags +- = VM_STACK_FLAGS & (VM_GROWSUP|VM_GROWSDOWN); +- + if (file) { + mm->shared_vm += pages; + if ((flags & (VM_EXEC|VM_WRITE)) == VM_EXEC) + mm->exec_vm += pages; +- } else if (flags & stack_flags) ++ } else if (flags & (VM_GROWSUP|VM_GROWSDOWN)) + mm->stack_vm += pages; + if (flags & (VM_RESERVED|VM_IO)) + mm->reserved_vm += pages; +@@ -969,7 +1046,7 @@ static unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, + * (the exception is when the underlying filesystem is noexec + * mounted, in which case we dont add PROT_EXEC.) + */ +- if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC)) ++ if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC)) + if (!(file && (file->f_path.mnt->mnt_flags & MNT_NOEXEC))) + prot |= PROT_EXEC; + +@@ -995,7 +1072,7 @@ static unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, + /* Obtain the address to map to. we verify (or select) it and ensure + * that it represents a valid section of the address space. + */ +- addr = get_unmapped_area(file, addr, len, pgoff, flags); ++ addr = get_unmapped_area(file, addr, len, pgoff, flags | ((prot & PROT_EXEC) ? MAP_EXECUTABLE : 0)); + if (addr & ~PAGE_MASK) + return addr; + +@@ -1006,6 +1083,36 @@ static unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, + vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) | + mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC; + ++#ifdef CONFIG_PAX_MPROTECT ++ if (mm->pax_flags & MF_PAX_MPROTECT) { ++#ifndef CONFIG_PAX_MPROTECT_COMPAT ++ if ((vm_flags & (VM_WRITE | VM_EXEC)) == (VM_WRITE | VM_EXEC)) { ++ gr_log_rwxmmap(file); ++ ++#ifdef CONFIG_PAX_EMUPLT ++ vm_flags &= ~VM_EXEC; ++#else ++ return -EPERM; ++#endif ++ ++ } ++ ++ if (!(vm_flags & VM_EXEC)) ++ vm_flags &= ~VM_MAYEXEC; ++#else ++ if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC) ++ vm_flags &= ~(VM_EXEC | VM_MAYEXEC); ++#endif ++ else ++ vm_flags &= ~VM_MAYWRITE; ++ } ++#endif ++ ++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32) ++ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && file) ++ vm_flags &= ~VM_PAGEEXEC; ++#endif ++ + if (flags & MAP_LOCKED) + if (!can_do_mlock()) + return -EPERM; +@@ -1017,6 +1124,7 @@ static unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, + locked += mm->locked_vm; + lock_limit = rlimit(RLIMIT_MEMLOCK); + lock_limit >>= PAGE_SHIFT; ++ gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1); + if (locked > lock_limit && !capable(CAP_IPC_LOCK)) + return -EAGAIN; + } +@@ -1087,6 +1195,9 @@ static unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, + if (error) + return error; + ++ if (!gr_acl_handle_mmap(file, prot)) ++ return -EACCES; ++ + return mmap_region(file, addr, len, flags, vm_flags, pgoff); + } + +@@ -1192,7 +1303,7 @@ int vma_wants_writenotify(struct vm_area_struct *vma) + vm_flags_t vm_flags = vma->vm_flags; + + /* If it was private or non-writable, the write bit is already clear */ +- if ((vm_flags & (VM_WRITE|VM_SHARED)) != ((VM_WRITE|VM_SHARED))) ++ if ((vm_flags & (VM_WRITE|VM_SHARED)) != (VM_WRITE|VM_SHARED)) + return 0; + + /* The backer wishes to know when pages are first written to? */ +@@ -1241,14 +1352,24 @@ unsigned long mmap_region(struct file *file, unsigned long addr, + unsigned long charged = 0; + struct inode *inode = file ? file->f_path.dentry->d_inode : NULL; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ struct vm_area_struct *vma_m = NULL; ++#endif ++ ++ /* ++ * mm->mmap_sem is required to protect against another thread ++ * changing the mappings in case we sleep. ++ */ ++ verify_mm_writelocked(mm); ++ + /* Clear old maps */ + error = -ENOMEM; +-munmap_back: + vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent); + if (vma && vma->vm_start < addr + len) { + if (do_munmap(mm, addr, len)) + return -ENOMEM; +- goto munmap_back; ++ vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent); ++ BUG_ON(vma && vma->vm_start < addr + len); + } + + /* Check against address space limit. */ +@@ -1297,6 +1418,16 @@ munmap_back: + goto unacct_error; + } + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vm_flags & VM_EXEC)) { ++ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); ++ if (!vma_m) { ++ error = -ENOMEM; ++ goto free_vma; ++ } ++ } ++#endif ++ + vma->vm_mm = mm; + vma->vm_start = addr; + vma->vm_end = addr + len; +@@ -1321,6 +1452,19 @@ munmap_back: + error = file->f_op->mmap(file, vma); + if (error) + goto unmap_and_free_vma; ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (vma_m && (vm_flags & VM_EXECUTABLE)) ++ added_exe_file_vma(mm); ++#endif ++ ++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32) ++ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && !(vma->vm_flags & VM_SPECIAL)) { ++ vma->vm_flags |= VM_PAGEEXEC; ++ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); ++ } ++#endif ++ + if (vm_flags & VM_EXECUTABLE) + added_exe_file_vma(mm); + +@@ -1358,6 +1502,11 @@ munmap_back: + vma_link(mm, vma, prev, rb_link, rb_parent); + file = vma->vm_file; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (vma_m) ++ BUG_ON(pax_mirror_vma(vma_m, vma)); ++#endif ++ + /* Once vma denies write, undo our temporary denial count */ + if (correct_wcount) + atomic_inc(&inode->i_writecount); +@@ -1366,6 +1515,7 @@ out: + + mm->total_vm += len >> PAGE_SHIFT; + vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT); ++ track_exec_limit(mm, addr, addr + len, vm_flags); + if (vm_flags & VM_LOCKED) { + if (!mlock_vma_pages_range(vma, addr, addr + len)) + mm->locked_vm += (len >> PAGE_SHIFT); +@@ -1383,6 +1533,12 @@ unmap_and_free_vma: + unmap_region(mm, vma, prev, vma->vm_start, vma->vm_end); + charged = 0; + free_vma: ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (vma_m) ++ kmem_cache_free(vm_area_cachep, vma_m); ++#endif ++ + kmem_cache_free(vm_area_cachep, vma); + unacct_error: + if (charged) +@@ -1390,6 +1546,44 @@ unacct_error: + return error; + } + ++bool check_heap_stack_gap(const struct vm_area_struct *vma, unsigned long addr, unsigned long len) ++{ ++ if (!vma) { ++#ifdef CONFIG_STACK_GROWSUP ++ if (addr > sysctl_heap_stack_gap) ++ vma = find_vma(current->mm, addr - sysctl_heap_stack_gap); ++ else ++ vma = find_vma(current->mm, 0); ++ if (vma && (vma->vm_flags & VM_GROWSUP)) ++ return false; ++#endif ++ return true; ++ } ++ ++ if (addr + len > vma->vm_start) ++ return false; ++ ++ if (vma->vm_flags & VM_GROWSDOWN) ++ return sysctl_heap_stack_gap <= vma->vm_start - addr - len; ++#ifdef CONFIG_STACK_GROWSUP ++ else if (vma->vm_prev && (vma->vm_prev->vm_flags & VM_GROWSUP)) ++ return addr - vma->vm_prev->vm_end <= sysctl_heap_stack_gap; ++#endif ++ ++ return true; ++} ++ ++unsigned long skip_heap_stack_gap(const struct vm_area_struct *vma, unsigned long len) ++{ ++ if (vma->vm_start < len) ++ return -ENOMEM; ++ if (!(vma->vm_flags & VM_GROWSDOWN)) ++ return vma->vm_start - len; ++ if (sysctl_heap_stack_gap <= vma->vm_start - len) ++ return vma->vm_start - len - sysctl_heap_stack_gap; ++ return -ENOMEM; ++} ++ + /* Get an address range which is currently unmapped. + * For shmat() with addr=0. + * +@@ -1416,18 +1610,23 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, + if (flags & MAP_FIXED) + return addr; + ++#ifdef CONFIG_PAX_RANDMMAP ++ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) ++#endif ++ + if (addr) { + addr = PAGE_ALIGN(addr); +- vma = find_vma(mm, addr); +- if (TASK_SIZE - len >= addr && +- (!vma || addr + len <= vma->vm_start)) +- return addr; ++ if (TASK_SIZE - len >= addr) { ++ vma = find_vma(mm, addr); ++ if (check_heap_stack_gap(vma, addr, len)) ++ return addr; ++ } + } + if (len > mm->cached_hole_size) { +- start_addr = addr = mm->free_area_cache; ++ start_addr = addr = mm->free_area_cache; + } else { +- start_addr = addr = TASK_UNMAPPED_BASE; +- mm->cached_hole_size = 0; ++ start_addr = addr = mm->mmap_base; ++ mm->cached_hole_size = 0; + } + + full_search: +@@ -1438,34 +1637,40 @@ full_search: + * Start a new search - just in case we missed + * some holes. + */ +- if (start_addr != TASK_UNMAPPED_BASE) { +- addr = TASK_UNMAPPED_BASE; +- start_addr = addr; ++ if (start_addr != mm->mmap_base) { ++ start_addr = addr = mm->mmap_base; + mm->cached_hole_size = 0; + goto full_search; + } + return -ENOMEM; + } +- if (!vma || addr + len <= vma->vm_start) { +- /* +- * Remember the place where we stopped the search: +- */ +- mm->free_area_cache = addr + len; +- return addr; +- } ++ if (check_heap_stack_gap(vma, addr, len)) ++ break; + if (addr + mm->cached_hole_size < vma->vm_start) + mm->cached_hole_size = vma->vm_start - addr; + addr = vma->vm_end; + } ++ ++ /* ++ * Remember the place where we stopped the search: ++ */ ++ mm->free_area_cache = addr + len; ++ return addr; + } + #endif + + void arch_unmap_area(struct mm_struct *mm, unsigned long addr) + { ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE <= addr) ++ return; ++#endif ++ + /* + * Is this a new hole at the lowest possible address? + */ +- if (addr >= TASK_UNMAPPED_BASE && addr < mm->free_area_cache) ++ if (addr >= mm->mmap_base && addr < mm->free_area_cache) + mm->free_area_cache = addr; + } + +@@ -1481,7 +1686,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, + { + struct vm_area_struct *vma; + struct mm_struct *mm = current->mm; +- unsigned long addr = addr0, start_addr; ++ unsigned long base = mm->mmap_base, addr = addr0, start_addr; + + /* requested length too big for entire address space */ + if (len > TASK_SIZE) +@@ -1490,13 +1695,18 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, + if (flags & MAP_FIXED) + return addr; + ++#ifdef CONFIG_PAX_RANDMMAP ++ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) ++#endif ++ + /* requesting a specific address */ + if (addr) { + addr = PAGE_ALIGN(addr); +- vma = find_vma(mm, addr); +- if (TASK_SIZE - len >= addr && +- (!vma || addr + len <= vma->vm_start)) +- return addr; ++ if (TASK_SIZE - len >= addr) { ++ vma = find_vma(mm, addr); ++ if (check_heap_stack_gap(vma, addr, len)) ++ return addr; ++ } + } + + /* check if free_area_cache is useful for us */ +@@ -1520,7 +1730,7 @@ try_again: + * return with success: + */ + vma = find_vma(mm, addr); +- if (!vma || addr+len <= vma->vm_start) ++ if (check_heap_stack_gap(vma, addr, len)) + /* remember the address as a hint for next time */ + return (mm->free_area_cache = addr); + +@@ -1529,8 +1739,8 @@ try_again: + mm->cached_hole_size = vma->vm_start - addr; + + /* try just below the current vma->vm_start */ +- addr = vma->vm_start-len; +- } while (len < vma->vm_start); ++ addr = skip_heap_stack_gap(vma, len); ++ } while (!IS_ERR_VALUE(addr)); + + fail: + /* +@@ -1553,13 +1763,21 @@ fail: + * can happen with large stack limits and large mmap() + * allocations. + */ ++ mm->mmap_base = TASK_UNMAPPED_BASE; ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ mm->mmap_base += mm->delta_mmap; ++#endif ++ ++ mm->free_area_cache = mm->mmap_base; + mm->cached_hole_size = ~0UL; +- mm->free_area_cache = TASK_UNMAPPED_BASE; + addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags); + /* + * Restore the topdown base: + */ +- mm->free_area_cache = mm->mmap_base; ++ mm->mmap_base = base; ++ mm->free_area_cache = base; + mm->cached_hole_size = ~0UL; + + return addr; +@@ -1568,6 +1786,12 @@ fail: + + void arch_unmap_area_topdown(struct mm_struct *mm, unsigned long addr) + { ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE <= addr) ++ return; ++#endif ++ + /* + * Is this a new hole at the highest possible address? + */ +@@ -1575,8 +1799,10 @@ void arch_unmap_area_topdown(struct mm_struct *mm, unsigned long addr) + mm->free_area_cache = addr; + + /* dont allow allocations above current base */ +- if (mm->free_area_cache > mm->mmap_base) ++ if (mm->free_area_cache > mm->mmap_base) { + mm->free_area_cache = mm->mmap_base; ++ mm->cached_hole_size = ~0UL; ++ } + } + + unsigned long +@@ -1672,6 +1898,28 @@ find_vma_prev(struct mm_struct *mm, unsigned long addr, + return vma; + } + ++#ifdef CONFIG_PAX_SEGMEXEC ++struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma) ++{ ++ struct vm_area_struct *vma_m; ++ ++ BUG_ON(!vma || vma->vm_start >= vma->vm_end); ++ if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC)) { ++ BUG_ON(vma->vm_mirror); ++ return NULL; ++ } ++ BUG_ON(vma->vm_start < SEGMEXEC_TASK_SIZE && SEGMEXEC_TASK_SIZE < vma->vm_end); ++ vma_m = vma->vm_mirror; ++ BUG_ON(!vma_m || vma_m->vm_mirror != vma); ++ BUG_ON(vma->vm_file != vma_m->vm_file); ++ BUG_ON(vma->vm_end - vma->vm_start != vma_m->vm_end - vma_m->vm_start); ++ BUG_ON(vma->vm_pgoff != vma_m->vm_pgoff); ++ BUG_ON(vma->anon_vma != vma_m->anon_vma && vma->anon_vma->root != vma_m->anon_vma->root); ++ BUG_ON((vma->vm_flags ^ vma_m->vm_flags) & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED | VM_RESERVED)); ++ return vma_m; ++} ++#endif ++ + /* + * Verify that the stack growth is acceptable and + * update accounting. This is shared with both the +@@ -1688,6 +1936,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns + return -ENOMEM; + + /* Stack limit test */ ++ gr_learn_resource(current, RLIMIT_STACK, size, 1); + if (size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur)) + return -ENOMEM; + +@@ -1698,6 +1947,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns + locked = mm->locked_vm + grow; + limit = ACCESS_ONCE(rlim[RLIMIT_MEMLOCK].rlim_cur); + limit >>= PAGE_SHIFT; ++ gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1); + if (locked > limit && !capable(CAP_IPC_LOCK)) + return -ENOMEM; + } +@@ -1728,37 +1978,48 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns + * PA-RISC uses this for its stack; IA64 for its Register Backing Store. + * vma is the last one with address > vma->vm_end. Have to extend vma. + */ ++#ifndef CONFIG_IA64 ++static ++#endif + int expand_upwards(struct vm_area_struct *vma, unsigned long address) + { + int error; ++ bool locknext; + + if (!(vma->vm_flags & VM_GROWSUP)) + return -EFAULT; + ++ /* Also guard against wrapping around to address 0. */ ++ if (address < PAGE_ALIGN(address+1)) ++ address = PAGE_ALIGN(address+1); ++ else ++ return -ENOMEM; ++ + /* + * We must make sure the anon_vma is allocated + * so that the anon_vma locking is not a noop. + */ + if (unlikely(anon_vma_prepare(vma))) + return -ENOMEM; ++ locknext = vma->vm_next && (vma->vm_next->vm_flags & VM_GROWSDOWN); ++ if (locknext && anon_vma_prepare(vma->vm_next)) ++ return -ENOMEM; + vma_lock_anon_vma(vma); ++ if (locknext) ++ vma_lock_anon_vma(vma->vm_next); + + /* + * vma->vm_start/vm_end cannot change under us because the caller + * is required to hold the mmap_sem in read mode. We need the +- * anon_vma lock to serialize against concurrent expand_stacks. +- * Also guard against wrapping around to address 0. ++ * anon_vma locks to serialize against concurrent expand_stacks ++ * and expand_upwards. + */ +- if (address < PAGE_ALIGN(address+4)) +- address = PAGE_ALIGN(address+4); +- else { +- vma_unlock_anon_vma(vma); +- return -ENOMEM; +- } + error = 0; + + /* Somebody else might have raced and expanded it already */ +- if (address > vma->vm_end) { ++ if (vma->vm_next && (vma->vm_next->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)) && vma->vm_next->vm_start - address < sysctl_heap_stack_gap) ++ error = -ENOMEM; ++ else if (address > vma->vm_end && (!locknext || vma->vm_next->vm_start >= address)) { + unsigned long size, grow; + + size = address - vma->vm_start; +@@ -1773,6 +2034,8 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address) + } + } + } ++ if (locknext) ++ vma_unlock_anon_vma(vma->vm_next); + vma_unlock_anon_vma(vma); + khugepaged_enter_vma_merge(vma); + return error; +@@ -1786,6 +2049,8 @@ int expand_downwards(struct vm_area_struct *vma, + unsigned long address) + { + int error; ++ bool lockprev = false; ++ struct vm_area_struct *prev; + + /* + * We must make sure the anon_vma is allocated +@@ -1799,6 +2064,15 @@ int expand_downwards(struct vm_area_struct *vma, + if (error) + return error; + ++ prev = vma->vm_prev; ++#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64) ++ lockprev = prev && (prev->vm_flags & VM_GROWSUP); ++#endif ++ if (lockprev && anon_vma_prepare(prev)) ++ return -ENOMEM; ++ if (lockprev) ++ vma_lock_anon_vma(prev); ++ + vma_lock_anon_vma(vma); + + /* +@@ -1808,9 +2082,17 @@ int expand_downwards(struct vm_area_struct *vma, + */ + + /* Somebody else might have raced and expanded it already */ +- if (address < vma->vm_start) { ++ if (prev && (prev->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)) && address - prev->vm_end < sysctl_heap_stack_gap) ++ error = -ENOMEM; ++ else if (address < vma->vm_start && (!lockprev || prev->vm_end <= address)) { + unsigned long size, grow; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ struct vm_area_struct *vma_m; ++ ++ vma_m = pax_find_mirror_vma(vma); ++#endif ++ + size = vma->vm_end - address; + grow = (vma->vm_start - address) >> PAGE_SHIFT; + +@@ -1820,11 +2102,22 @@ int expand_downwards(struct vm_area_struct *vma, + if (!error) { + vma->vm_start = address; + vma->vm_pgoff -= grow; ++ track_exec_limit(vma->vm_mm, vma->vm_start, vma->vm_end, vma->vm_flags); ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (vma_m) { ++ vma_m->vm_start -= grow << PAGE_SHIFT; ++ vma_m->vm_pgoff -= grow; ++ } ++#endif ++ + perf_event_mmap(vma); + } + } + } + vma_unlock_anon_vma(vma); ++ if (lockprev) ++ vma_unlock_anon_vma(prev); + khugepaged_enter_vma_merge(vma); + return error; + } +@@ -1894,6 +2187,13 @@ static void remove_vma_list(struct mm_struct *mm, struct vm_area_struct *vma) + do { + long nrpages = vma_pages(vma); + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE)) { ++ vma = remove_vma(vma); ++ continue; ++ } ++#endif ++ + mm->total_vm -= nrpages; + vm_stat_account(mm, vma->vm_flags, vma->vm_file, -nrpages); + vma = remove_vma(vma); +@@ -1939,6 +2239,16 @@ detach_vmas_to_be_unmapped(struct mm_struct *mm, struct vm_area_struct *vma, + insertion_point = (prev ? &prev->vm_next : &mm->mmap); + vma->vm_prev = NULL; + do { ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (vma->vm_mirror) { ++ BUG_ON(!vma->vm_mirror->vm_mirror || vma->vm_mirror->vm_mirror != vma); ++ vma->vm_mirror->vm_mirror = NULL; ++ vma->vm_mirror->vm_flags &= ~VM_EXEC; ++ vma->vm_mirror = NULL; ++ } ++#endif ++ + rb_erase(&vma->vm_rb, &mm->mm_rb); + mm->map_count--; + tail_vma = vma; +@@ -1967,14 +2277,33 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma, + struct vm_area_struct *new; + int err = -ENOMEM; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ struct vm_area_struct *vma_m, *new_m = NULL; ++ unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE; ++#endif ++ + if (is_vm_hugetlb_page(vma) && (addr & + ~(huge_page_mask(hstate_vma(vma))))) + return -EINVAL; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ vma_m = pax_find_mirror_vma(vma); ++#endif ++ + new = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL); + if (!new) + goto out_err; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (vma_m) { ++ new_m = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL); ++ if (!new_m) { ++ kmem_cache_free(vm_area_cachep, new); ++ goto out_err; ++ } ++ } ++#endif ++ + /* most fields are the same, copy all, and then fixup */ + *new = *vma; + +@@ -1987,6 +2316,22 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma, + new->vm_pgoff += ((addr - vma->vm_start) >> PAGE_SHIFT); + } + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (vma_m) { ++ *new_m = *vma_m; ++ INIT_LIST_HEAD(&new_m->anon_vma_chain); ++ new_m->vm_mirror = new; ++ new->vm_mirror = new_m; ++ ++ if (new_below) ++ new_m->vm_end = addr_m; ++ else { ++ new_m->vm_start = addr_m; ++ new_m->vm_pgoff += ((addr_m - vma_m->vm_start) >> PAGE_SHIFT); ++ } ++ } ++#endif ++ + pol = mpol_dup(vma_policy(vma)); + if (IS_ERR(pol)) { + err = PTR_ERR(pol); +@@ -2012,6 +2357,42 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma, + else + err = vma_adjust(vma, vma->vm_start, addr, vma->vm_pgoff, new); + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (!err && vma_m) { ++ if (anon_vma_clone(new_m, vma_m)) ++ goto out_free_mpol; ++ ++ mpol_get(pol); ++ vma_set_policy(new_m, pol); ++ ++ if (new_m->vm_file) { ++ get_file(new_m->vm_file); ++ if (vma_m->vm_flags & VM_EXECUTABLE) ++ added_exe_file_vma(mm); ++ } ++ ++ if (new_m->vm_ops && new_m->vm_ops->open) ++ new_m->vm_ops->open(new_m); ++ ++ if (new_below) ++ err = vma_adjust(vma_m, addr_m, vma_m->vm_end, vma_m->vm_pgoff + ++ ((addr_m - new_m->vm_start) >> PAGE_SHIFT), new_m); ++ else ++ err = vma_adjust(vma_m, vma_m->vm_start, addr_m, vma_m->vm_pgoff, new_m); ++ ++ if (err) { ++ if (new_m->vm_ops && new_m->vm_ops->close) ++ new_m->vm_ops->close(new_m); ++ if (new_m->vm_file) { ++ if (vma_m->vm_flags & VM_EXECUTABLE) ++ removed_exe_file_vma(mm); ++ fput(new_m->vm_file); ++ } ++ mpol_put(pol); ++ } ++ } ++#endif ++ + /* Success. */ + if (!err) + return 0; +@@ -2024,10 +2405,18 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma, + removed_exe_file_vma(mm); + fput(new->vm_file); + } +- unlink_anon_vmas(new); + out_free_mpol: + mpol_put(pol); + out_free_vma: ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (new_m) { ++ unlink_anon_vmas(new_m); ++ kmem_cache_free(vm_area_cachep, new_m); ++ } ++#endif ++ ++ unlink_anon_vmas(new); + kmem_cache_free(vm_area_cachep, new); + out_err: + return err; +@@ -2040,6 +2429,15 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma, + int split_vma(struct mm_struct *mm, struct vm_area_struct *vma, + unsigned long addr, int new_below) + { ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (mm->pax_flags & MF_PAX_SEGMEXEC) { ++ BUG_ON(vma->vm_end > SEGMEXEC_TASK_SIZE); ++ if (mm->map_count >= sysctl_max_map_count-1) ++ return -ENOMEM; ++ } else ++#endif ++ + if (mm->map_count >= sysctl_max_map_count) + return -ENOMEM; + +@@ -2051,11 +2449,30 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma, + * work. This now handles partial unmappings. + * Jeremy Fitzhardinge <jeremy(a)goop.org> + */ ++#ifdef CONFIG_PAX_SEGMEXEC + int do_munmap(struct mm_struct *mm, unsigned long start, size_t len) + { ++ int ret = __do_munmap(mm, start, len); ++ if (ret || !(mm->pax_flags & MF_PAX_SEGMEXEC)) ++ return ret; ++ ++ return __do_munmap(mm, start + SEGMEXEC_TASK_SIZE, len); ++} ++ ++int __do_munmap(struct mm_struct *mm, unsigned long start, size_t len) ++#else ++int do_munmap(struct mm_struct *mm, unsigned long start, size_t len) ++#endif ++{ + unsigned long end; + struct vm_area_struct *vma, *prev, *last; + ++ /* ++ * mm->mmap_sem is required to protect against another thread ++ * changing the mappings in case we sleep. ++ */ ++ verify_mm_writelocked(mm); ++ + if ((start & ~PAGE_MASK) || start > TASK_SIZE || len > TASK_SIZE-start) + return -EINVAL; + +@@ -2130,6 +2547,8 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len) + /* Fix up all other VM information */ + remove_vma_list(mm, vma); + ++ track_exec_limit(mm, start, end, 0UL); ++ + return 0; + } + EXPORT_SYMBOL(do_munmap); +@@ -2139,6 +2558,13 @@ int vm_munmap(unsigned long start, size_t len) + int ret; + struct mm_struct *mm = current->mm; + ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && ++ (len > SEGMEXEC_TASK_SIZE || start > SEGMEXEC_TASK_SIZE-len)) ++ return -EINVAL; ++#endif ++ + down_write(&mm->mmap_sem); + ret = do_munmap(mm, start, len); + up_write(&mm->mmap_sem); +@@ -2152,16 +2578,6 @@ SYSCALL_DEFINE2(munmap, unsigned long, addr, size_t, len) + return vm_munmap(addr, len); + } + +-static inline void verify_mm_writelocked(struct mm_struct *mm) +-{ +-#ifdef CONFIG_DEBUG_VM +- if (unlikely(down_read_trylock(&mm->mmap_sem))) { +- WARN_ON(1); +- up_read(&mm->mmap_sem); +- } +-#endif +-} +- + /* + * this is really a simplified "do_mmap". it only handles + * anonymous maps. eventually we may be able to do some +@@ -2175,6 +2591,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len) + struct rb_node ** rb_link, * rb_parent; + pgoff_t pgoff = addr >> PAGE_SHIFT; + int error; ++ unsigned long charged; + + len = PAGE_ALIGN(len); + if (!len) +@@ -2186,16 +2603,30 @@ static unsigned long do_brk(unsigned long addr, unsigned long len) + + flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags; + ++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) ++ if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { ++ flags &= ~VM_EXEC; ++ ++#ifdef CONFIG_PAX_MPROTECT ++ if (mm->pax_flags & MF_PAX_MPROTECT) ++ flags &= ~VM_MAYEXEC; ++#endif ++ ++ } ++#endif ++ + error = get_unmapped_area(NULL, addr, len, 0, MAP_FIXED); + if (error & ~PAGE_MASK) + return error; + ++ charged = len >> PAGE_SHIFT; ++ + /* + * mlock MCL_FUTURE? + */ + if (mm->def_flags & VM_LOCKED) { + unsigned long locked, lock_limit; +- locked = len >> PAGE_SHIFT; ++ locked = charged; + locked += mm->locked_vm; + lock_limit = rlimit(RLIMIT_MEMLOCK); + lock_limit >>= PAGE_SHIFT; +@@ -2212,22 +2643,22 @@ static unsigned long do_brk(unsigned long addr, unsigned long len) + /* + * Clear old maps. this also does some error checking for us + */ +- munmap_back: + vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent); + if (vma && vma->vm_start < addr + len) { + if (do_munmap(mm, addr, len)) + return -ENOMEM; +- goto munmap_back; +- } ++ vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent); ++ BUG_ON(vma && vma->vm_start < addr + len); ++ } + + /* Check against address space limits *after* clearing old maps... */ +- if (!may_expand_vm(mm, len >> PAGE_SHIFT)) ++ if (!may_expand_vm(mm, charged)) + return -ENOMEM; + + if (mm->map_count > sysctl_max_map_count) + return -ENOMEM; + +- if (security_vm_enough_memory_mm(mm, len >> PAGE_SHIFT)) ++ if (security_vm_enough_memory_mm(mm, charged)) + return -ENOMEM; + + /* Can we just expand an old private anonymous mapping? */ +@@ -2241,7 +2672,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len) + */ + vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); + if (!vma) { +- vm_unacct_memory(len >> PAGE_SHIFT); ++ vm_unacct_memory(charged); + return -ENOMEM; + } + +@@ -2255,11 +2686,12 @@ static unsigned long do_brk(unsigned long addr, unsigned long len) + vma_link(mm, vma, prev, rb_link, rb_parent); + out: + perf_event_mmap(vma); +- mm->total_vm += len >> PAGE_SHIFT; ++ mm->total_vm += charged; + if (flags & VM_LOCKED) { + if (!mlock_vma_pages_range(vma, addr, addr + len)) +- mm->locked_vm += (len >> PAGE_SHIFT); ++ mm->locked_vm += charged; + } ++ track_exec_limit(mm, addr, addr + len, flags); + return addr; + } + +@@ -2315,8 +2747,10 @@ void exit_mmap(struct mm_struct *mm) + * Walk the list again, actually closing and freeing it, + * with preemption enabled, without holding any MM locks. + */ +- while (vma) ++ while (vma) { ++ vma->vm_mirror = NULL; + vma = remove_vma(vma); ++ } + + BUG_ON(mm->nr_ptes > (FIRST_USER_ADDRESS+PMD_SIZE-1)>>PMD_SHIFT); + } +@@ -2330,6 +2764,13 @@ int insert_vm_struct(struct mm_struct * mm, struct vm_area_struct * vma) + struct vm_area_struct * __vma, * prev; + struct rb_node ** rb_link, * rb_parent; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ struct vm_area_struct *vma_m = NULL; ++#endif ++ ++ if (security_file_mmap(NULL, 0, 0, 0, vma->vm_start, 1)) ++ return -EPERM; ++ + /* + * The vm_pgoff of a purely anonymous vma should be irrelevant + * until its first write fault, when page's anon_vma and index +@@ -2352,7 +2793,22 @@ int insert_vm_struct(struct mm_struct * mm, struct vm_area_struct * vma) + if ((vma->vm_flags & VM_ACCOUNT) && + security_vm_enough_memory_mm(mm, vma_pages(vma))) + return -ENOMEM; ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_EXEC)) { ++ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); ++ if (!vma_m) ++ return -ENOMEM; ++ } ++#endif ++ + vma_link(mm, vma, prev, rb_link, rb_parent); ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (vma_m) ++ BUG_ON(pax_mirror_vma(vma_m, vma)); ++#endif ++ + return 0; + } + +@@ -2371,6 +2827,8 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap, + struct mempolicy *pol; + bool faulted_in_anon_vma = true; + ++ BUG_ON(vma->vm_mirror); ++ + /* + * If anonymous vma has not yet been faulted, update new pgoff + * to match new location, to increase its chance of merging. +@@ -2438,6 +2896,39 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap, + return NULL; + } + ++#ifdef CONFIG_PAX_SEGMEXEC ++long pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma) ++{ ++ struct vm_area_struct *prev_m; ++ struct rb_node **rb_link_m, *rb_parent_m; ++ struct mempolicy *pol_m; ++ ++ BUG_ON(!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC)); ++ BUG_ON(vma->vm_mirror || vma_m->vm_mirror); ++ BUG_ON(!mpol_equal(vma_policy(vma), vma_policy(vma_m))); ++ *vma_m = *vma; ++ INIT_LIST_HEAD(&vma_m->anon_vma_chain); ++ if (anon_vma_clone(vma_m, vma)) ++ return -ENOMEM; ++ pol_m = vma_policy(vma_m); ++ mpol_get(pol_m); ++ vma_set_policy(vma_m, pol_m); ++ vma_m->vm_start += SEGMEXEC_TASK_SIZE; ++ vma_m->vm_end += SEGMEXEC_TASK_SIZE; ++ vma_m->vm_flags &= ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED); ++ vma_m->vm_page_prot = vm_get_page_prot(vma_m->vm_flags); ++ if (vma_m->vm_file) ++ get_file(vma_m->vm_file); ++ if (vma_m->vm_ops && vma_m->vm_ops->open) ++ vma_m->vm_ops->open(vma_m); ++ find_vma_prepare(vma->vm_mm, vma_m->vm_start, &prev_m, &rb_link_m, &rb_parent_m); ++ vma_link(vma->vm_mm, vma_m, prev_m, rb_link_m, rb_parent_m); ++ vma_m->vm_mirror = vma; ++ vma->vm_mirror = vma_m; ++ return 0; ++} ++#endif ++ + /* + * Return true if the calling process may expand its vm space by the passed + * number of pages +@@ -2449,6 +2940,12 @@ int may_expand_vm(struct mm_struct *mm, unsigned long npages) + + lim = rlimit(RLIMIT_AS) >> PAGE_SHIFT; + ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ cur -= mm->brk_gap; ++#endif ++ ++ gr_learn_resource(current, RLIMIT_AS, (cur + npages) << PAGE_SHIFT, 1); + if (cur + npages > lim) + return 0; + return 1; +@@ -2519,6 +3016,22 @@ int install_special_mapping(struct mm_struct *mm, + vma->vm_start = addr; + vma->vm_end = addr + len; + ++#ifdef CONFIG_PAX_MPROTECT ++ if (mm->pax_flags & MF_PAX_MPROTECT) { ++#ifndef CONFIG_PAX_MPROTECT_COMPAT ++ if ((vm_flags & (VM_WRITE | VM_EXEC)) == (VM_WRITE | VM_EXEC)) ++ return -EPERM; ++ if (!(vm_flags & VM_EXEC)) ++ vm_flags &= ~VM_MAYEXEC; ++#else ++ if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC) ++ vm_flags &= ~(VM_EXEC | VM_MAYEXEC); ++#endif ++ else ++ vm_flags &= ~VM_MAYWRITE; ++ } ++#endif ++ + vma->vm_flags = vm_flags | mm->def_flags | VM_DONTEXPAND; + vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); + +diff --git a/mm/mprotect.c b/mm/mprotect.c +index a409926..8b32e6d 100644 +--- a/mm/mprotect.c ++++ b/mm/mprotect.c +@@ -23,10 +23,17 @@ + #include <linux/mmu_notifier.h> + #include <linux/migrate.h> + #include <linux/perf_event.h> ++ ++#ifdef CONFIG_PAX_MPROTECT ++#include <linux/elf.h> ++#include <linux/binfmts.h> ++#endif ++ + #include <asm/uaccess.h> + #include <asm/pgtable.h> + #include <asm/cacheflush.h> + #include <asm/tlbflush.h> ++#include <asm/mmu_context.h> + + #ifndef pgprot_modify + static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot) +@@ -141,6 +148,48 @@ static void change_protection(struct vm_area_struct *vma, + flush_tlb_range(vma, start, end); + } + ++#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT ++/* called while holding the mmap semaphor for writing except stack expansion */ ++void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot) ++{ ++ unsigned long oldlimit, newlimit = 0UL; ++ ++ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || (__supported_pte_mask & _PAGE_NX)) ++ return; ++ ++ spin_lock(&mm->page_table_lock); ++ oldlimit = mm->context.user_cs_limit; ++ if ((prot & VM_EXEC) && oldlimit < end) ++ /* USER_CS limit moved up */ ++ newlimit = end; ++ else if (!(prot & VM_EXEC) && start < oldlimit && oldlimit <= end) ++ /* USER_CS limit moved down */ ++ newlimit = start; ++ ++ if (newlimit) { ++ mm->context.user_cs_limit = newlimit; ++ ++#ifdef CONFIG_SMP ++ wmb(); ++ cpus_clear(mm->context.cpu_user_cs_mask); ++ cpu_set(smp_processor_id(), mm->context.cpu_user_cs_mask); ++#endif ++ ++ set_user_cs(mm->context.user_cs_base, mm->context.user_cs_limit, smp_processor_id()); ++ } ++ spin_unlock(&mm->page_table_lock); ++ if (newlimit == end) { ++ struct vm_area_struct *vma = find_vma(mm, oldlimit); ++ ++ for (; vma && vma->vm_start < end; vma = vma->vm_next) ++ if (is_vm_hugetlb_page(vma)) ++ hugetlb_change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot); ++ else ++ change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot, vma_wants_writenotify(vma)); ++ } ++} ++#endif ++ + int + mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev, + unsigned long start, unsigned long end, unsigned long newflags) +@@ -153,11 +202,29 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev, + int error; + int dirty_accountable = 0; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ struct vm_area_struct *vma_m = NULL; ++ unsigned long start_m, end_m; ++ ++ start_m = start + SEGMEXEC_TASK_SIZE; ++ end_m = end + SEGMEXEC_TASK_SIZE; ++#endif ++ + if (newflags == oldflags) { + *pprev = vma; + return 0; + } + ++ if (newflags & (VM_READ | VM_WRITE | VM_EXEC)) { ++ struct vm_area_struct *prev = vma->vm_prev, *next = vma->vm_next; ++ ++ if (next && (next->vm_flags & VM_GROWSDOWN) && sysctl_heap_stack_gap > next->vm_start - end) ++ return -ENOMEM; ++ ++ if (prev && (prev->vm_flags & VM_GROWSUP) && sysctl_heap_stack_gap > start - prev->vm_end) ++ return -ENOMEM; ++ } ++ + /* + * If we make a private mapping writable we increase our commit; + * but (without finer accounting) cannot reduce our commit if we +@@ -174,6 +241,42 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev, + } + } + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && ((oldflags ^ newflags) & VM_EXEC)) { ++ if (start != vma->vm_start) { ++ error = split_vma(mm, vma, start, 1); ++ if (error) ++ goto fail; ++ BUG_ON(!*pprev || (*pprev)->vm_next == vma); ++ *pprev = (*pprev)->vm_next; ++ } ++ ++ if (end != vma->vm_end) { ++ error = split_vma(mm, vma, end, 0); ++ if (error) ++ goto fail; ++ } ++ ++ if (pax_find_mirror_vma(vma)) { ++ error = __do_munmap(mm, start_m, end_m - start_m); ++ if (error) ++ goto fail; ++ } else { ++ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); ++ if (!vma_m) { ++ error = -ENOMEM; ++ goto fail; ++ } ++ vma->vm_flags = newflags; ++ error = pax_mirror_vma(vma_m, vma); ++ if (error) { ++ vma->vm_flags = oldflags; ++ goto fail; ++ } ++ } ++ } ++#endif ++ + /* + * First try to merge with previous and/or next vma. + */ +@@ -204,9 +307,21 @@ success: + * vm_flags and vm_page_prot are protected by the mmap_sem + * held in write mode. + */ ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (newflags & VM_EXEC) && ((vma->vm_flags ^ newflags) & VM_READ)) ++ pax_find_mirror_vma(vma)->vm_flags ^= VM_READ; ++#endif ++ + vma->vm_flags = newflags; ++ ++#ifdef CONFIG_PAX_MPROTECT ++ if (mm->binfmt && mm->binfmt->handle_mprotect) ++ mm->binfmt->handle_mprotect(vma, newflags); ++#endif ++ + vma->vm_page_prot = pgprot_modify(vma->vm_page_prot, +- vm_get_page_prot(newflags)); ++ vm_get_page_prot(vma->vm_flags)); + + if (vma_wants_writenotify(vma)) { + vma->vm_page_prot = vm_get_page_prot(newflags & ~VM_SHARED); +@@ -248,6 +363,17 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len, + end = start + len; + if (end <= start) + return -ENOMEM; ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) { ++ if (end > SEGMEXEC_TASK_SIZE) ++ return -EINVAL; ++ } else ++#endif ++ ++ if (end > TASK_SIZE) ++ return -EINVAL; ++ + if (!arch_validate_prot(prot)) + return -EINVAL; + +@@ -255,7 +381,7 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len, + /* + * Does the application expect PROT_READ to imply PROT_EXEC: + */ +- if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC)) ++ if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC)) + prot |= PROT_EXEC; + + vm_flags = calc_vm_prot_bits(prot); +@@ -288,6 +414,11 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len, + if (start > vma->vm_start) + prev = vma; + ++#ifdef CONFIG_PAX_MPROTECT ++ if (current->mm->binfmt && current->mm->binfmt->handle_mprotect) ++ current->mm->binfmt->handle_mprotect(vma, vm_flags); ++#endif ++ + for (nstart = start ; ; ) { + unsigned long newflags; + +@@ -297,6 +428,14 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len, + + /* newflags >> 4 shift VM_MAY% in place of VM_% */ + if ((newflags & ~(newflags >> 4)) & (VM_READ | VM_WRITE | VM_EXEC)) { ++ if (prot & (PROT_WRITE | PROT_EXEC)) ++ gr_log_rwxmprotect(vma->vm_file); ++ ++ error = -EACCES; ++ goto out; ++ } ++ ++ if (!gr_acl_handle_mprotect(vma->vm_file, prot)) { + error = -EACCES; + goto out; + } +@@ -311,6 +450,9 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len, + error = mprotect_fixup(vma, &prev, nstart, tmp, newflags); + if (error) + goto out; ++ ++ track_exec_limit(current->mm, nstart, tmp, vm_flags); ++ + nstart = tmp; + + if (nstart < prev->vm_end) +diff --git a/mm/mremap.c b/mm/mremap.c +index db8d983..76506cb 100644 +--- a/mm/mremap.c ++++ b/mm/mremap.c +@@ -106,6 +106,12 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd, + continue; + pte = ptep_get_and_clear(mm, old_addr, old_pte); + pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr); ++ ++#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT ++ if (!(__supported_pte_mask & _PAGE_NX) && (new_vma->vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC) ++ pte = pte_exprotect(pte); ++#endif ++ + set_pte_at(mm, new_addr, new_pte, pte); + } + +@@ -299,6 +305,11 @@ static struct vm_area_struct *vma_to_resize(unsigned long addr, + if (is_vm_hugetlb_page(vma)) + goto Einval; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (pax_find_mirror_vma(vma)) ++ goto Einval; ++#endif ++ + /* We can't remap across vm area boundaries */ + if (old_len > vma->vm_end - addr) + goto Efault; +@@ -355,20 +366,25 @@ static unsigned long mremap_to(unsigned long addr, + unsigned long ret = -EINVAL; + unsigned long charged = 0; + unsigned long map_flags; ++ unsigned long pax_task_size = TASK_SIZE; + + if (new_addr & ~PAGE_MASK) + goto out; + +- if (new_len > TASK_SIZE || new_addr > TASK_SIZE - new_len) ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (mm->pax_flags & MF_PAX_SEGMEXEC) ++ pax_task_size = SEGMEXEC_TASK_SIZE; ++#endif ++ ++ pax_task_size -= PAGE_SIZE; ++ ++ if (new_len > TASK_SIZE || new_addr > pax_task_size - new_len) + goto out; + + /* Check if the location we're moving into overlaps the + * old location at all, and fail if it does. + */ +- if ((new_addr <= addr) && (new_addr+new_len) > addr) +- goto out; +- +- if ((addr <= new_addr) && (addr+old_len) > new_addr) ++ if (addr + old_len > new_addr && new_addr + new_len > addr) + goto out; + + ret = security_file_mmap(NULL, 0, 0, 0, new_addr, 1); +@@ -440,6 +456,7 @@ unsigned long do_mremap(unsigned long addr, + struct vm_area_struct *vma; + unsigned long ret = -EINVAL; + unsigned long charged = 0; ++ unsigned long pax_task_size = TASK_SIZE; + + if (flags & ~(MREMAP_FIXED | MREMAP_MAYMOVE)) + goto out; +@@ -458,6 +475,17 @@ unsigned long do_mremap(unsigned long addr, + if (!new_len) + goto out; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (mm->pax_flags & MF_PAX_SEGMEXEC) ++ pax_task_size = SEGMEXEC_TASK_SIZE; ++#endif ++ ++ pax_task_size -= PAGE_SIZE; ++ ++ if (new_len > pax_task_size || addr > pax_task_size-new_len || ++ old_len > pax_task_size || addr > pax_task_size-old_len) ++ goto out; ++ + if (flags & MREMAP_FIXED) { + if (flags & MREMAP_MAYMOVE) + ret = mremap_to(addr, old_len, new_addr, new_len); +@@ -507,6 +535,7 @@ unsigned long do_mremap(unsigned long addr, + addr + new_len); + } + ret = addr; ++ track_exec_limit(vma->vm_mm, vma->vm_start, addr + new_len, vma->vm_flags); + goto out; + } + } +@@ -533,7 +562,13 @@ unsigned long do_mremap(unsigned long addr, + ret = security_file_mmap(NULL, 0, 0, 0, new_addr, 1); + if (ret) + goto out; ++ ++ map_flags = vma->vm_flags; + ret = move_vma(vma, addr, old_len, new_len, new_addr); ++ if (!(ret & ~PAGE_MASK)) { ++ track_exec_limit(current->mm, addr, addr + old_len, 0UL); ++ track_exec_limit(current->mm, new_addr, new_addr + new_len, map_flags); ++ } + } + out: + if (ret & ~PAGE_MASK) +diff --git a/mm/nommu.c b/mm/nommu.c +index bb8f4f0..40d3e02 100644 +--- a/mm/nommu.c ++++ b/mm/nommu.c +@@ -62,7 +62,6 @@ int sysctl_overcommit_memory = OVERCOMMIT_GUESS; /* heuristic overcommit */ + int sysctl_overcommit_ratio = 50; /* default is 50% */ + int sysctl_max_map_count = DEFAULT_MAX_MAP_COUNT; + int sysctl_nr_trim_pages = CONFIG_NOMMU_INITIAL_TRIM_EXCESS; +-int heap_stack_gap = 0; + + atomic_long_t mmap_pages_allocated; + +@@ -827,15 +826,6 @@ struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr) + EXPORT_SYMBOL(find_vma); + + /* +- * find a VMA +- * - we don't extend stack VMAs under NOMMU conditions +- */ +-struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr) +-{ +- return find_vma(mm, addr); +-} +- +-/* + * expand a stack to a given address + * - not supported under NOMMU conditions + */ +@@ -1580,6 +1570,7 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma, + + /* most fields are the same, copy all, and then fixup */ + *new = *vma; ++ INIT_LIST_HEAD(&new->anon_vma_chain); + *region = *vma->vm_region; + new->vm_region = region; + +diff --git a/mm/page_alloc.c b/mm/page_alloc.c +index 918330f..ae99ae1 100644 +--- a/mm/page_alloc.c ++++ b/mm/page_alloc.c +@@ -335,7 +335,7 @@ out: + * This usage means that zero-order pages may not be compound. + */ + +-static void free_compound_page(struct page *page) ++void free_compound_page(struct page *page) + { + __free_pages_ok(page, compound_order(page)); + } +@@ -692,6 +692,10 @@ static bool free_pages_prepare(struct page *page, unsigned int order) + int i; + int bad = 0; + ++#ifdef CONFIG_PAX_MEMORY_SANITIZE ++ unsigned long index = 1UL << order; ++#endif ++ + trace_mm_page_free(page, order); + kmemcheck_free_shadow(page, order); + +@@ -707,6 +711,12 @@ static bool free_pages_prepare(struct page *page, unsigned int order) + debug_check_no_obj_freed(page_address(page), + PAGE_SIZE << order); + } ++ ++#ifdef CONFIG_PAX_MEMORY_SANITIZE ++ for (; index; --index) ++ sanitize_highpage(page + index - 1); ++#endif ++ + arch_free_page(page, order); + kernel_map_pages(page, 1 << order, 0); + +@@ -830,8 +840,10 @@ static int prep_new_page(struct page *page, int order, gfp_t gfp_flags) + arch_alloc_page(page, order); + kernel_map_pages(page, 1 << order, 1); + ++#ifndef CONFIG_PAX_MEMORY_SANITIZE + if (gfp_flags & __GFP_ZERO) + prep_zero_page(page, order, gfp_flags); ++#endif + + if (order && (gfp_flags & __GFP_COMP)) + prep_compound_page(page, order); +@@ -3523,7 +3535,13 @@ static int pageblock_is_reserved(unsigned long start_pfn, unsigned long end_pfn) + unsigned long pfn; + + for (pfn = start_pfn; pfn < end_pfn; pfn++) { ++#ifdef CONFIG_X86_32 ++ /* boot failures in VMware 8 on 32bit vanilla since ++ this change */ ++ if (!pfn_valid(pfn) || PageReserved(pfn_to_page(pfn))) ++#else + if (!pfn_valid_within(pfn) || PageReserved(pfn_to_page(pfn))) ++#endif + return 1; + } + return 0; +diff --git a/mm/percpu.c b/mm/percpu.c +index bb4be74..a43ea85 100644 +--- a/mm/percpu.c ++++ b/mm/percpu.c +@@ -122,7 +122,7 @@ static unsigned int pcpu_low_unit_cpu __read_mostly; + static unsigned int pcpu_high_unit_cpu __read_mostly; + + /* the address of the first chunk which starts with the kernel static area */ +-void *pcpu_base_addr __read_mostly; ++void *pcpu_base_addr __read_only; + EXPORT_SYMBOL_GPL(pcpu_base_addr); + + static const int *pcpu_unit_map __read_mostly; /* cpu -> unit */ +diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c +index c20ff48..137702a 100644 +--- a/mm/process_vm_access.c ++++ b/mm/process_vm_access.c +@@ -13,6 +13,7 @@ + #include <linux/uio.h> + #include <linux/sched.h> + #include <linux/highmem.h> ++#include <linux/security.h> + #include <linux/ptrace.h> + #include <linux/slab.h> + #include <linux/syscalls.h> +@@ -258,19 +259,19 @@ static ssize_t process_vm_rw_core(pid_t pid, const struct iovec *lvec, + size_t iov_l_curr_offset = 0; + ssize_t iov_len; + ++ return -ENOSYS; // PaX: until properly audited ++ + /* + * Work out how many pages of struct pages we're going to need + * when eventually calling get_user_pages + */ + for (i = 0; i < riovcnt; i++) { + iov_len = rvec[i].iov_len; +- if (iov_len > 0) { +- nr_pages_iov = ((unsigned long)rvec[i].iov_base +- + iov_len) +- / PAGE_SIZE - (unsigned long)rvec[i].iov_base +- / PAGE_SIZE + 1; +- nr_pages = max(nr_pages, nr_pages_iov); +- } ++ if (iov_len <= 0) ++ continue; ++ nr_pages_iov = ((unsigned long)rvec[i].iov_base + iov_len) / PAGE_SIZE - ++ (unsigned long)rvec[i].iov_base / PAGE_SIZE + 1; ++ nr_pages = max(nr_pages, nr_pages_iov); + } + + if (nr_pages == 0) +@@ -298,6 +299,11 @@ static ssize_t process_vm_rw_core(pid_t pid, const struct iovec *lvec, + goto free_proc_pages; + } + ++ if (gr_handle_ptrace(task, vm_write ? PTRACE_POKETEXT : PTRACE_ATTACH)) { ++ rc = -EPERM; ++ goto put_task_struct; ++ } ++ + mm = mm_access(task, PTRACE_MODE_ATTACH); + if (!mm || IS_ERR(mm)) { + rc = IS_ERR(mm) ? PTR_ERR(mm) : -ESRCH; +diff --git a/mm/rmap.c b/mm/rmap.c +index 5b5ad58..0f77903 100644 +--- a/mm/rmap.c ++++ b/mm/rmap.c +@@ -167,6 +167,10 @@ int anon_vma_prepare(struct vm_area_struct *vma) + struct anon_vma *anon_vma = vma->anon_vma; + struct anon_vma_chain *avc; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ struct anon_vma_chain *avc_m = NULL; ++#endif ++ + might_sleep(); + if (unlikely(!anon_vma)) { + struct mm_struct *mm = vma->vm_mm; +@@ -176,6 +180,12 @@ int anon_vma_prepare(struct vm_area_struct *vma) + if (!avc) + goto out_enomem; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ avc_m = anon_vma_chain_alloc(GFP_KERNEL); ++ if (!avc_m) ++ goto out_enomem_free_avc; ++#endif ++ + anon_vma = find_mergeable_anon_vma(vma); + allocated = NULL; + if (!anon_vma) { +@@ -189,6 +199,18 @@ int anon_vma_prepare(struct vm_area_struct *vma) + /* page_table_lock to protect against threads */ + spin_lock(&mm->page_table_lock); + if (likely(!vma->anon_vma)) { ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ struct vm_area_struct *vma_m = pax_find_mirror_vma(vma); ++ ++ if (vma_m) { ++ BUG_ON(vma_m->anon_vma); ++ vma_m->anon_vma = anon_vma; ++ anon_vma_chain_link(vma_m, avc_m, anon_vma); ++ avc_m = NULL; ++ } ++#endif ++ + vma->anon_vma = anon_vma; + anon_vma_chain_link(vma, avc, anon_vma); + allocated = NULL; +@@ -199,12 +221,24 @@ int anon_vma_prepare(struct vm_area_struct *vma) + + if (unlikely(allocated)) + put_anon_vma(allocated); ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (unlikely(avc_m)) ++ anon_vma_chain_free(avc_m); ++#endif ++ + if (unlikely(avc)) + anon_vma_chain_free(avc); + } + return 0; + + out_enomem_free_avc: ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ if (avc_m) ++ anon_vma_chain_free(avc_m); ++#endif ++ + anon_vma_chain_free(avc); + out_enomem: + return -ENOMEM; +@@ -240,7 +274,7 @@ static inline void unlock_anon_vma_root(struct anon_vma *root) + * Attach the anon_vmas from src to dst. + * Returns 0 on success, -ENOMEM on failure. + */ +-int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src) ++int anon_vma_clone(struct vm_area_struct *dst, const struct vm_area_struct *src) + { + struct anon_vma_chain *avc, *pavc; + struct anon_vma *root = NULL; +@@ -318,7 +352,7 @@ void anon_vma_moveto_tail(struct vm_area_struct *dst) + * the corresponding VMA in the parent process is attached to. + * Returns 0 on success, non-zero on failure. + */ +-int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma) ++int anon_vma_fork(struct vm_area_struct *vma, const struct vm_area_struct *pvma) + { + struct anon_vma_chain *avc; + struct anon_vma *anon_vma; +diff --git a/mm/shmem.c b/mm/shmem.c +index 9d65a02..7c877e7 100644 +--- a/mm/shmem.c ++++ b/mm/shmem.c +@@ -31,7 +31,7 @@ + #include <linux/export.h> + #include <linux/swap.h> + +-static struct vfsmount *shm_mnt; ++struct vfsmount *shm_mnt; + + #ifdef CONFIG_SHMEM + /* +@@ -74,7 +74,7 @@ static struct vfsmount *shm_mnt; + #define BOGO_DIRENT_SIZE 20 + + /* Symlink up to this size is kmalloc'ed instead of using a swappable page */ +-#define SHORT_SYMLINK_LEN 128 ++#define SHORT_SYMLINK_LEN 64 + + struct shmem_xattr { + struct list_head list; /* anchored by shmem_inode_info->xattr_list */ +@@ -2236,8 +2236,7 @@ int shmem_fill_super(struct super_block *sb, void *data, int silent) + int err = -ENOMEM; + + /* Round up to L1_CACHE_BYTES to resist false sharing */ +- sbinfo = kzalloc(max((int)sizeof(struct shmem_sb_info), +- L1_CACHE_BYTES), GFP_KERNEL); ++ sbinfo = kzalloc(max(sizeof(struct shmem_sb_info), L1_CACHE_BYTES), GFP_KERNEL); + if (!sbinfo) + return -ENOMEM; + +diff --git a/mm/slab.c b/mm/slab.c +index e901a36..ca479fc 100644 +--- a/mm/slab.c ++++ b/mm/slab.c +@@ -153,7 +153,7 @@ + + /* Legal flag mask for kmem_cache_create(). */ + #if DEBUG +-# define CREATE_MASK (SLAB_RED_ZONE | \ ++# define CREATE_MASK (SLAB_USERCOPY | SLAB_RED_ZONE | \ + SLAB_POISON | SLAB_HWCACHE_ALIGN | \ + SLAB_CACHE_DMA | \ + SLAB_STORE_USER | \ +@@ -161,7 +161,7 @@ + SLAB_DESTROY_BY_RCU | SLAB_MEM_SPREAD | \ + SLAB_DEBUG_OBJECTS | SLAB_NOLEAKTRACE | SLAB_NOTRACK) + #else +-# define CREATE_MASK (SLAB_HWCACHE_ALIGN | \ ++# define CREATE_MASK (SLAB_USERCOPY | SLAB_HWCACHE_ALIGN | \ + SLAB_CACHE_DMA | \ + SLAB_RECLAIM_ACCOUNT | SLAB_PANIC | \ + SLAB_DESTROY_BY_RCU | SLAB_MEM_SPREAD | \ +@@ -290,7 +290,7 @@ struct kmem_list3 { + * Need this for bootstrapping a per node allocator. + */ + #define NUM_INIT_LISTS (3 * MAX_NUMNODES) +-static struct kmem_list3 __initdata initkmem_list3[NUM_INIT_LISTS]; ++static struct kmem_list3 initkmem_list3[NUM_INIT_LISTS]; + #define CACHE_CACHE 0 + #define SIZE_AC MAX_NUMNODES + #define SIZE_L3 (2 * MAX_NUMNODES) +@@ -391,10 +391,10 @@ static void kmem_list3_init(struct kmem_list3 *parent) + if ((x)->max_freeable < i) \ + (x)->max_freeable = i; \ + } while (0) +-#define STATS_INC_ALLOCHIT(x) atomic_inc(&(x)->allochit) +-#define STATS_INC_ALLOCMISS(x) atomic_inc(&(x)->allocmiss) +-#define STATS_INC_FREEHIT(x) atomic_inc(&(x)->freehit) +-#define STATS_INC_FREEMISS(x) atomic_inc(&(x)->freemiss) ++#define STATS_INC_ALLOCHIT(x) atomic_inc_unchecked(&(x)->allochit) ++#define STATS_INC_ALLOCMISS(x) atomic_inc_unchecked(&(x)->allocmiss) ++#define STATS_INC_FREEHIT(x) atomic_inc_unchecked(&(x)->freehit) ++#define STATS_INC_FREEMISS(x) atomic_inc_unchecked(&(x)->freemiss) + #else + #define STATS_INC_ACTIVE(x) do { } while (0) + #define STATS_DEC_ACTIVE(x) do { } while (0) +@@ -542,7 +542,7 @@ static inline void *index_to_obj(struct kmem_cache *cache, struct slab *slab, + * reciprocal_divide(offset, cache->reciprocal_buffer_size) + */ + static inline unsigned int obj_to_index(const struct kmem_cache *cache, +- const struct slab *slab, void *obj) ++ const struct slab *slab, const void *obj) + { + u32 offset = (obj - slab->s_mem); + return reciprocal_divide(offset, cache->reciprocal_buffer_size); +@@ -563,12 +563,13 @@ EXPORT_SYMBOL(malloc_sizes); + struct cache_names { + char *name; + char *name_dma; ++ char *name_usercopy; + }; + + static struct cache_names __initdata cache_names[] = { +-#define CACHE(x) { .name = "size-" #x, .name_dma = "size-" #x "(DMA)" }, ++#define CACHE(x) { .name = "size-" #x, .name_dma = "size-" #x "(DMA)", .name_usercopy = "size-" #x "(USERCOPY)" }, + #include <linux/kmalloc_sizes.h> +- {NULL,} ++ {NULL} + #undef CACHE + }; + +@@ -756,6 +757,12 @@ static inline struct kmem_cache *__find_general_cachep(size_t size, + if (unlikely(gfpflags & GFP_DMA)) + return csizep->cs_dmacachep; + #endif ++ ++#ifdef CONFIG_PAX_USERCOPY_SLABS ++ if (unlikely(gfpflags & GFP_USERCOPY)) ++ return csizep->cs_usercopycachep; ++#endif ++ + return csizep->cs_cachep; + } + +@@ -1588,7 +1595,7 @@ void __init kmem_cache_init(void) + sizes[INDEX_AC].cs_cachep = kmem_cache_create(names[INDEX_AC].name, + sizes[INDEX_AC].cs_size, + ARCH_KMALLOC_MINALIGN, +- ARCH_KMALLOC_FLAGS|SLAB_PANIC, ++ ARCH_KMALLOC_FLAGS|SLAB_PANIC|SLAB_USERCOPY, + NULL); + + if (INDEX_AC != INDEX_L3) { +@@ -1596,7 +1603,7 @@ void __init kmem_cache_init(void) + kmem_cache_create(names[INDEX_L3].name, + sizes[INDEX_L3].cs_size, + ARCH_KMALLOC_MINALIGN, +- ARCH_KMALLOC_FLAGS|SLAB_PANIC, ++ ARCH_KMALLOC_FLAGS|SLAB_PANIC|SLAB_USERCOPY, + NULL); + } + +@@ -1614,7 +1621,7 @@ void __init kmem_cache_init(void) + sizes->cs_cachep = kmem_cache_create(names->name, + sizes->cs_size, + ARCH_KMALLOC_MINALIGN, +- ARCH_KMALLOC_FLAGS|SLAB_PANIC, ++ ARCH_KMALLOC_FLAGS|SLAB_PANIC|SLAB_USERCOPY, + NULL); + } + #ifdef CONFIG_ZONE_DMA +@@ -1626,6 +1633,16 @@ void __init kmem_cache_init(void) + SLAB_PANIC, + NULL); + #endif ++ ++#ifdef CONFIG_PAX_USERCOPY_SLABS ++ sizes->cs_usercopycachep = kmem_cache_create( ++ names->name_usercopy, ++ sizes->cs_size, ++ ARCH_KMALLOC_MINALIGN, ++ ARCH_KMALLOC_FLAGS|SLAB_PANIC|SLAB_USERCOPY, ++ NULL); ++#endif ++ + sizes++; + names++; + } +@@ -4390,10 +4407,10 @@ static int s_show(struct seq_file *m, void *p) + } + /* cpu stats */ + { +- unsigned long allochit = atomic_read(&cachep->allochit); +- unsigned long allocmiss = atomic_read(&cachep->allocmiss); +- unsigned long freehit = atomic_read(&cachep->freehit); +- unsigned long freemiss = atomic_read(&cachep->freemiss); ++ unsigned long allochit = atomic_read_unchecked(&cachep->allochit); ++ unsigned long allocmiss = atomic_read_unchecked(&cachep->allocmiss); ++ unsigned long freehit = atomic_read_unchecked(&cachep->freehit); ++ unsigned long freemiss = atomic_read_unchecked(&cachep->freemiss); + + seq_printf(m, " : cpustat %6lu %6lu %6lu %6lu", + allochit, allocmiss, freehit, freemiss); +@@ -4652,13 +4669,68 @@ static int __init slab_proc_init(void) + { + proc_create("slabinfo",S_IWUSR|S_IRUSR,NULL,&proc_slabinfo_operations); + #ifdef CONFIG_DEBUG_SLAB_LEAK +- proc_create("slab_allocators", 0, NULL, &proc_slabstats_operations); ++ proc_create("slab_allocators", S_IRUSR, NULL, &proc_slabstats_operations); + #endif + return 0; + } + module_init(slab_proc_init); + #endif + ++bool is_usercopy_object(const void *ptr) ++{ ++ struct page *page; ++ struct kmem_cache *cachep; ++ ++ if (ZERO_OR_NULL_PTR(ptr)) ++ return false; ++ ++ if (!virt_addr_valid(ptr)) ++ return false; ++ ++ page = virt_to_head_page(ptr); ++ ++ if (!PageSlab(page)) ++ return false; ++ ++ cachep = page_get_cache(page); ++ return cachep->flags & SLAB_USERCOPY; ++} ++ ++#ifdef CONFIG_PAX_USERCOPY ++const char *check_heap_object(const void *ptr, unsigned long n, bool to) ++{ ++ struct page *page; ++ struct kmem_cache *cachep; ++ struct slab *slabp; ++ unsigned int objnr; ++ unsigned long offset; ++ ++ if (ZERO_OR_NULL_PTR(ptr)) ++ return "<null>"; ++ ++ if (!virt_addr_valid(ptr)) ++ return NULL; ++ ++ page = virt_to_head_page(ptr); ++ ++ if (!PageSlab(page)) ++ return NULL; ++ ++ cachep = page_get_cache(page); ++ if (!(cachep->flags & SLAB_USERCOPY)) ++ return cachep->name; ++ ++ slabp = page_get_slab(page); ++ objnr = obj_to_index(cachep, slabp, ptr); ++ BUG_ON(objnr >= cachep->num); ++ offset = ptr - index_to_obj(cachep, slabp, objnr) - obj_offset(cachep); ++ if (offset <= obj_size(cachep) && n <= obj_size(cachep) - offset) ++ return NULL; ++ ++ return cachep->name; ++} ++#endif ++ + /** + * ksize - get the actual amount of memory allocated for a given object + * @objp: Pointer to the object +diff --git a/mm/slob.c b/mm/slob.c +index 8105be4..3c15e57 100644 +--- a/mm/slob.c ++++ b/mm/slob.c +@@ -29,7 +29,7 @@ + * If kmalloc is asked for objects of PAGE_SIZE or larger, it calls + * alloc_pages() directly, allocating compound pages so the page order + * does not have to be separately tracked, and also stores the exact +- * allocation size in page->private so that it can be used to accurately ++ * allocation size in slob_page->size so that it can be used to accurately + * provide ksize(). These objects are detected in kfree() because slob_page() + * is false for them. + * +@@ -58,6 +58,7 @@ + */ + + #include <linux/kernel.h> ++#include <linux/sched.h> + #include <linux/slab.h> + #include <linux/mm.h> + #include <linux/swap.h> /* struct reclaim_state */ +@@ -102,7 +103,8 @@ struct slob_page { + unsigned long flags; /* mandatory */ + atomic_t _count; /* mandatory */ + slobidx_t units; /* free units left in page */ +- unsigned long pad[2]; ++ unsigned long pad[1]; ++ unsigned long size; /* size when >=PAGE_SIZE */ + slob_t *free; /* first free slob_t in page */ + struct list_head list; /* linked list of free pages */ + }; +@@ -135,7 +137,7 @@ static LIST_HEAD(free_slob_large); + */ + static inline int is_slob_page(struct slob_page *sp) + { +- return PageSlab((struct page *)sp); ++ return PageSlab((struct page *)sp) && !sp->size; + } + + static inline void set_slob_page(struct slob_page *sp) +@@ -150,7 +152,7 @@ static inline void clear_slob_page(struct slob_page *sp) + + static inline struct slob_page *slob_page(const void *addr) + { +- return (struct slob_page *)virt_to_page(addr); ++ return (struct slob_page *)virt_to_head_page(addr); + } + + /* +@@ -210,7 +212,7 @@ static void set_slob(slob_t *s, slobidx_t size, slob_t *next) + /* + * Return the size of a slob block. + */ +-static slobidx_t slob_units(slob_t *s) ++static slobidx_t slob_units(const slob_t *s) + { + if (s->units > 0) + return s->units; +@@ -220,7 +222,7 @@ static slobidx_t slob_units(slob_t *s) + /* + * Return the next free slob block pointer after this one. + */ +-static slob_t *slob_next(slob_t *s) ++static slob_t *slob_next(const slob_t *s) + { + slob_t *base = (slob_t *)((unsigned long)s & PAGE_MASK); + slobidx_t next; +@@ -235,7 +237,7 @@ static slob_t *slob_next(slob_t *s) + /* + * Returns true if s is the last free block in its page. + */ +-static int slob_last(slob_t *s) ++static int slob_last(const slob_t *s) + { + return !((unsigned long)slob_next(s) & ~PAGE_MASK); + } +@@ -254,6 +256,7 @@ static void *slob_new_pages(gfp_t gfp, int order, int node) + if (!page) + return NULL; + ++ set_slob_page(page); + return page_address(page); + } + +@@ -370,11 +373,11 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node) + if (!b) + return NULL; + sp = slob_page(b); +- set_slob_page(sp); + + spin_lock_irqsave(&slob_lock, flags); + sp->units = SLOB_UNITS(PAGE_SIZE); + sp->free = b; ++ sp->size = 0; + INIT_LIST_HEAD(&sp->list); + set_slob(b, SLOB_UNITS(PAGE_SIZE), b + SLOB_UNITS(PAGE_SIZE)); + set_slob_page_free(sp, slob_list); +@@ -476,10 +479,9 @@ out: + * End of slob allocator proper. Begin kmem_cache_alloc and kmalloc frontend. + */ + +-void *__kmalloc_node(size_t size, gfp_t gfp, int node) ++static void *__kmalloc_node_align(size_t size, gfp_t gfp, int node, int align) + { +- unsigned int *m; +- int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN); ++ slob_t *m; + void *ret; + + gfp &= gfp_allowed_mask; +@@ -494,7 +496,10 @@ void *__kmalloc_node(size_t size, gfp_t gfp, int node) + + if (!m) + return NULL; +- *m = size; ++ BUILD_BUG_ON(ARCH_KMALLOC_MINALIGN < 2 * SLOB_UNIT); ++ BUILD_BUG_ON(ARCH_SLAB_MINALIGN < 2 * SLOB_UNIT); ++ m[0].units = size; ++ m[1].units = align; + ret = (void *)m + align; + + trace_kmalloc_node(_RET_IP_, ret, +@@ -506,16 +511,25 @@ void *__kmalloc_node(size_t size, gfp_t gfp, int node) + gfp |= __GFP_COMP; + ret = slob_new_pages(gfp, order, node); + if (ret) { +- struct page *page; +- page = virt_to_page(ret); +- page->private = size; ++ struct slob_page *sp; ++ sp = slob_page(ret); ++ sp->size = size; + } + + trace_kmalloc_node(_RET_IP_, ret, + size, PAGE_SIZE << order, gfp, node); + } + +- kmemleak_alloc(ret, size, 1, gfp); ++ return ret; ++} ++ ++void *__kmalloc_node(size_t size, gfp_t gfp, int node) ++{ ++ int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN); ++ void *ret = __kmalloc_node_align(size, gfp, node, align); ++ ++ if (!ZERO_OR_NULL_PTR(ret)) ++ kmemleak_alloc(ret, size, 1, gfp); + return ret; + } + EXPORT_SYMBOL(__kmalloc_node); +@@ -533,13 +547,83 @@ void kfree(const void *block) + sp = slob_page(block); + if (is_slob_page(sp)) { + int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN); +- unsigned int *m = (unsigned int *)(block - align); +- slob_free(m, *m + align); +- } else ++ slob_t *m = (slob_t *)(block - align); ++ slob_free(m, m[0].units + align); ++ } else { ++ clear_slob_page(sp); ++ free_slob_page(sp); ++ sp->size = 0; + put_page(&sp->page); ++ } + } + EXPORT_SYMBOL(kfree); + ++bool is_usercopy_object(const void *ptr) ++{ ++ return false; ++} ++ ++#ifdef CONFIG_PAX_USERCOPY ++const char *check_heap_object(const void *ptr, unsigned long n, bool to) ++{ ++ struct slob_page *sp; ++ const slob_t *free; ++ const void *base; ++ unsigned long flags; ++ ++ if (ZERO_OR_NULL_PTR(ptr)) ++ return "<null>"; ++ ++ if (!virt_addr_valid(ptr)) ++ return NULL; ++ ++ sp = slob_page(ptr); ++ if (!PageSlab((struct page *)sp)) ++ return NULL; ++ ++ if (sp->size) { ++ base = page_address(&sp->page); ++ if (base <= ptr && n <= sp->size - (ptr - base)) ++ return NULL; ++ return "<slob>"; ++ } ++ ++ /* some tricky double walking to find the chunk */ ++ spin_lock_irqsave(&slob_lock, flags); ++ base = (void *)((unsigned long)ptr & PAGE_MASK); ++ free = sp->free; ++ ++ while (!slob_last(free) && (void *)free <= ptr) { ++ base = free + slob_units(free); ++ free = slob_next(free); ++ } ++ ++ while (base < (void *)free) { ++ slobidx_t m = ((slob_t *)base)[0].units, align = ((slob_t *)base)[1].units; ++ int size = SLOB_UNIT * SLOB_UNITS(m + align); ++ int offset; ++ ++ if (ptr < base + align) ++ break; ++ ++ offset = ptr - base - align; ++ if (offset >= m) { ++ base += size; ++ continue; ++ } ++ ++ if (n > m - offset) ++ break; ++ ++ spin_unlock_irqrestore(&slob_lock, flags); ++ return NULL; ++ } ++ ++ spin_unlock_irqrestore(&slob_lock, flags); ++ return "<slob>"; ++} ++#endif ++ + /* can't use ksize for kmem_cache_alloc memory, only kmalloc */ + size_t ksize(const void *block) + { +@@ -552,10 +636,10 @@ size_t ksize(const void *block) + sp = slob_page(block); + if (is_slob_page(sp)) { + int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN); +- unsigned int *m = (unsigned int *)(block - align); +- return SLOB_UNITS(*m) * SLOB_UNIT; ++ slob_t *m = (slob_t *)(block - align); ++ return SLOB_UNITS(m[0].units) * SLOB_UNIT; + } else +- return sp->page.private; ++ return sp->size; + } + EXPORT_SYMBOL(ksize); + +@@ -571,8 +655,13 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size, + { + struct kmem_cache *c; + ++#ifdef CONFIG_PAX_USERCOPY_SLABS ++ c = __kmalloc_node_align(sizeof(struct kmem_cache), ++ GFP_KERNEL, -1, ARCH_KMALLOC_MINALIGN); ++#else + c = slob_alloc(sizeof(struct kmem_cache), + GFP_KERNEL, ARCH_KMALLOC_MINALIGN, -1); ++#endif + + if (c) { + c->name = name; +@@ -614,17 +703,25 @@ void *kmem_cache_alloc_node(struct kmem_cache *c, gfp_t flags, int node) + + lockdep_trace_alloc(flags); + ++#ifdef CONFIG_PAX_USERCOPY_SLABS ++ b = __kmalloc_node_align(c->size, flags, node, c->align); ++#else + if (c->size < PAGE_SIZE) { + b = slob_alloc(c->size, flags, c->align, node); + trace_kmem_cache_alloc_node(_RET_IP_, b, c->size, + SLOB_UNITS(c->size) * SLOB_UNIT, + flags, node); + } else { ++ struct slob_page *sp; ++ + b = slob_new_pages(flags, get_order(c->size), node); ++ sp = slob_page(b); ++ sp->size = c->size; + trace_kmem_cache_alloc_node(_RET_IP_, b, c->size, + PAGE_SIZE << get_order(c->size), + flags, node); + } ++#endif + + if (c->ctor) + c->ctor(b); +@@ -636,10 +733,16 @@ EXPORT_SYMBOL(kmem_cache_alloc_node); + + static void __kmem_cache_free(void *b, int size) + { +- if (size < PAGE_SIZE) ++ struct slob_page *sp = slob_page(b); ++ ++ if (is_slob_page(sp)) + slob_free(b, size); +- else ++ else { ++ clear_slob_page(sp); ++ free_slob_page(sp); ++ sp->size = 0; + slob_free_pages(b, get_order(size)); ++ } + } + + static void kmem_rcu_free(struct rcu_head *head) +@@ -652,17 +755,31 @@ static void kmem_rcu_free(struct rcu_head *head) + + void kmem_cache_free(struct kmem_cache *c, void *b) + { ++ int size = c->size; ++ ++#ifdef CONFIG_PAX_USERCOPY_SLABS ++ if (size + c->align < PAGE_SIZE) { ++ size += c->align; ++ b -= c->align; ++ } ++#endif ++ + kmemleak_free_recursive(b, c->flags); + if (unlikely(c->flags & SLAB_DESTROY_BY_RCU)) { + struct slob_rcu *slob_rcu; +- slob_rcu = b + (c->size - sizeof(struct slob_rcu)); +- slob_rcu->size = c->size; ++ slob_rcu = b + (size - sizeof(struct slob_rcu)); ++ slob_rcu->size = size; + call_rcu(&slob_rcu->head, kmem_rcu_free); + } else { +- __kmem_cache_free(b, c->size); ++ __kmem_cache_free(b, size); + } + ++#ifdef CONFIG_PAX_USERCOPY_SLABS ++ trace_kfree(_RET_IP_, b); ++#else + trace_kmem_cache_free(_RET_IP_, b); ++#endif ++ + } + EXPORT_SYMBOL(kmem_cache_free); + +diff --git a/mm/slub.c b/mm/slub.c +index 71de9b5..a93d4a4 100644 +--- a/mm/slub.c ++++ b/mm/slub.c +@@ -209,7 +209,7 @@ struct track { + + enum track_item { TRACK_ALLOC, TRACK_FREE }; + +-#ifdef CONFIG_SYSFS ++#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD) + static int sysfs_slab_add(struct kmem_cache *); + static int sysfs_slab_alias(struct kmem_cache *, const char *); + static void sysfs_slab_remove(struct kmem_cache *); +@@ -538,7 +538,7 @@ static void print_track(const char *s, struct track *t) + if (!t->addr) + return; + +- printk(KERN_ERR "INFO: %s in %pS age=%lu cpu=%u pid=%d\n", ++ printk(KERN_ERR "INFO: %s in %pA age=%lu cpu=%u pid=%d\n", + s, (void *)t->addr, jiffies - t->when, t->cpu, t->pid); + #ifdef CONFIG_STACKTRACE + { +@@ -2603,6 +2603,8 @@ void kmem_cache_free(struct kmem_cache *s, void *x) + + page = virt_to_head_page(x); + ++ BUG_ON(!PageSlab(page)); ++ + slab_free(s, page, x, _RET_IP_); + + trace_kmem_cache_free(_RET_IP_, x); +@@ -2636,7 +2638,7 @@ static int slub_min_objects; + * Merge control. If this is set then no merging of slab caches will occur. + * (Could be removed. This was introduced to pacify the merge skeptics.) + */ +-static int slub_nomerge; ++static int slub_nomerge = 1; + + /* + * Calculate the order of allocation given an slab object size. +@@ -3089,7 +3091,7 @@ static int kmem_cache_open(struct kmem_cache *s, + else + s->cpu_partial = 30; + +- s->refcount = 1; ++ atomic_set(&s->refcount, 1); + #ifdef CONFIG_NUMA + s->remote_node_defrag_ratio = 1000; + #endif +@@ -3193,8 +3195,7 @@ static inline int kmem_cache_close(struct kmem_cache *s) + void kmem_cache_destroy(struct kmem_cache *s) + { + down_write(&slub_lock); +- s->refcount--; +- if (!s->refcount) { ++ if (atomic_dec_and_test(&s->refcount)) { + list_del(&s->list); + up_write(&slub_lock); + if (kmem_cache_close(s)) { +@@ -3223,6 +3224,10 @@ static struct kmem_cache *kmem_cache; + static struct kmem_cache *kmalloc_dma_caches[SLUB_PAGE_SHIFT]; + #endif + ++#ifdef CONFIG_PAX_USERCOPY_SLABS ++static struct kmem_cache *kmalloc_usercopy_caches[SLUB_PAGE_SHIFT]; ++#endif ++ + static int __init setup_slub_min_order(char *str) + { + get_option(&str, &slub_min_order); +@@ -3337,6 +3342,13 @@ static struct kmem_cache *get_slab(size_t size, gfp_t flags) + return kmalloc_dma_caches[index]; + + #endif ++ ++#ifdef CONFIG_PAX_USERCOPY_SLABS ++ if (flags & SLAB_USERCOPY) ++ return kmalloc_usercopy_caches[index]; ++ ++#endif ++ + return kmalloc_caches[index]; + } + +@@ -3405,6 +3417,56 @@ void *__kmalloc_node(size_t size, gfp_t flags, int node) + EXPORT_SYMBOL(__kmalloc_node); + #endif + ++bool is_usercopy_object(const void *ptr) ++{ ++ struct page *page; ++ struct kmem_cache *s; ++ ++ if (ZERO_OR_NULL_PTR(ptr)) ++ return false; ++ ++ if (!virt_addr_valid(ptr)) ++ return false; ++ ++ page = virt_to_head_page(ptr); ++ ++ if (!PageSlab(page)) ++ return false; ++ ++ s = page->slab; ++ return s->flags & SLAB_USERCOPY; ++} ++ ++#ifdef CONFIG_PAX_USERCOPY ++const char *check_heap_object(const void *ptr, unsigned long n, bool to) ++{ ++ struct page *page; ++ struct kmem_cache *s; ++ unsigned long offset; ++ ++ if (ZERO_OR_NULL_PTR(ptr)) ++ return "<null>"; ++ ++ if (!virt_addr_valid(ptr)) ++ return NULL; ++ ++ page = virt_to_head_page(ptr); ++ ++ if (!PageSlab(page)) ++ return NULL; ++ ++ s = page->slab; ++ if (!(s->flags & SLAB_USERCOPY)) ++ return s->name; ++ ++ offset = (ptr - page_address(page)) % s->size; ++ if (offset <= s->objsize && n <= s->objsize - offset) ++ return NULL; ++ ++ return s->name; ++} ++#endif ++ + size_t ksize(const void *object) + { + struct page *page; +@@ -3679,7 +3741,7 @@ static void __init kmem_cache_bootstrap_fixup(struct kmem_cache *s) + int node; + + list_add(&s->list, &slab_caches); +- s->refcount = -1; ++ atomic_set(&s->refcount, -1); + + for_each_node_state(node, N_NORMAL_MEMORY) { + struct kmem_cache_node *n = get_node(s, node); +@@ -3799,17 +3861,17 @@ void __init kmem_cache_init(void) + + /* Caches that are not of the two-to-the-power-of size */ + if (KMALLOC_MIN_SIZE <= 32) { +- kmalloc_caches[1] = create_kmalloc_cache("kmalloc-96", 96, 0); ++ kmalloc_caches[1] = create_kmalloc_cache("kmalloc-96", 96, SLAB_USERCOPY); + caches++; + } + + if (KMALLOC_MIN_SIZE <= 64) { +- kmalloc_caches[2] = create_kmalloc_cache("kmalloc-192", 192, 0); ++ kmalloc_caches[2] = create_kmalloc_cache("kmalloc-192", 192, SLAB_USERCOPY); + caches++; + } + + for (i = KMALLOC_SHIFT_LOW; i < SLUB_PAGE_SHIFT; i++) { +- kmalloc_caches[i] = create_kmalloc_cache("kmalloc", 1 << i, 0); ++ kmalloc_caches[i] = create_kmalloc_cache("kmalloc", 1 << i, SLAB_USERCOPY); + caches++; + } + +@@ -3851,6 +3913,22 @@ void __init kmem_cache_init(void) + } + } + #endif ++ ++#ifdef CONFIG_PAX_USERCOPY_SLABS ++ for (i = 0; i < SLUB_PAGE_SHIFT; i++) { ++ struct kmem_cache *s = kmalloc_caches[i]; ++ ++ if (s && s->size) { ++ char *name = kasprintf(GFP_NOWAIT, ++ "usercopy-kmalloc-%d", s->objsize); ++ ++ BUG_ON(!name); ++ kmalloc_usercopy_caches[i] = create_kmalloc_cache(name, ++ s->objsize, SLAB_USERCOPY); ++ } ++ } ++#endif ++ + printk(KERN_INFO + "SLUB: Genslabs=%d, HWalign=%d, Order=%d-%d, MinObjects=%d," + " CPUs=%d, Nodes=%d\n", +@@ -3877,7 +3955,7 @@ static int slab_unmergeable(struct kmem_cache *s) + /* + * We may have set a slab to be unmergeable during bootstrap. + */ +- if (s->refcount < 0) ++ if (atomic_read(&s->refcount) < 0) + return 1; + + return 0; +@@ -3936,7 +4014,7 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size, + down_write(&slub_lock); + s = find_mergeable(size, align, flags, name, ctor); + if (s) { +- s->refcount++; ++ atomic_inc(&s->refcount); + /* + * Adjust the object sizes so that we clear + * the complete object on kzalloc. +@@ -3945,7 +4023,7 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size, + s->inuse = max_t(int, s->inuse, ALIGN(size, sizeof(void *))); + + if (sysfs_slab_alias(s, name)) { +- s->refcount--; ++ atomic_dec(&s->refcount); + goto err; + } + up_write(&slub_lock); +@@ -4074,7 +4152,7 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags, + } + #endif + +-#ifdef CONFIG_SYSFS ++#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD) + static int count_inuse(struct page *page) + { + return page->inuse; +@@ -4461,12 +4539,12 @@ static void resiliency_test(void) + validate_slab_cache(kmalloc_caches[9]); + } + #else +-#ifdef CONFIG_SYSFS ++#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD) + static void resiliency_test(void) {}; + #endif + #endif + +-#ifdef CONFIG_SYSFS ++#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD) + enum slab_stat_type { + SL_ALL, /* All slabs */ + SL_PARTIAL, /* Only partially allocated slabs */ +@@ -4709,7 +4787,7 @@ SLAB_ATTR_RO(ctor); + + static ssize_t aliases_show(struct kmem_cache *s, char *buf) + { +- return sprintf(buf, "%d\n", s->refcount - 1); ++ return sprintf(buf, "%d\n", atomic_read(&s->refcount) - 1); + } + SLAB_ATTR_RO(aliases); + +@@ -5280,6 +5358,7 @@ static char *create_unique_id(struct kmem_cache *s) + return name; + } + ++#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD) + static int sysfs_slab_add(struct kmem_cache *s) + { + int err; +@@ -5342,6 +5421,7 @@ static void sysfs_slab_remove(struct kmem_cache *s) + kobject_del(&s->kobj); + kobject_put(&s->kobj); + } ++#endif + + /* + * Need to buffer aliases during bootup until sysfs becomes +@@ -5355,6 +5435,7 @@ struct saved_alias { + + static struct saved_alias *alias_list; + ++#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD) + static int sysfs_slab_alias(struct kmem_cache *s, const char *name) + { + struct saved_alias *al; +@@ -5377,6 +5458,7 @@ static int sysfs_slab_alias(struct kmem_cache *s, const char *name) + alias_list = al; + return 0; + } ++#endif + + static int __init slab_sysfs_init(void) + { +diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c +index 1b7e22a..3fcd4f3 100644 +--- a/mm/sparse-vmemmap.c ++++ b/mm/sparse-vmemmap.c +@@ -128,7 +128,7 @@ pud_t * __meminit vmemmap_pud_populate(pgd_t *pgd, unsigned long addr, int node) + void *p = vmemmap_alloc_block(PAGE_SIZE, node); + if (!p) + return NULL; +- pud_populate(&init_mm, pud, p); ++ pud_populate_kernel(&init_mm, pud, p); + } + return pud; + } +@@ -140,7 +140,7 @@ pgd_t * __meminit vmemmap_pgd_populate(unsigned long addr, int node) + void *p = vmemmap_alloc_block(PAGE_SIZE, node); + if (!p) + return NULL; +- pgd_populate(&init_mm, pgd, p); ++ pgd_populate_kernel(&init_mm, pgd, p); + } + return pgd; + } +diff --git a/mm/swap.c b/mm/swap.c +index 5c13f13..f1cfc13 100644 +--- a/mm/swap.c ++++ b/mm/swap.c +@@ -30,6 +30,7 @@ + #include <linux/backing-dev.h> + #include <linux/memcontrol.h> + #include <linux/gfp.h> ++#include <linux/hugetlb.h> + + #include "internal.h" + +@@ -70,6 +71,8 @@ static void __put_compound_page(struct page *page) + + __page_cache_release(page); + dtor = get_compound_page_dtor(page); ++ if (!PageHuge(page)) ++ BUG_ON(dtor != free_compound_page); + (*dtor)(page); + } + +diff --git a/mm/swapfile.c b/mm/swapfile.c +index 38186d9..bfba6d3 100644 +--- a/mm/swapfile.c ++++ b/mm/swapfile.c +@@ -61,7 +61,7 @@ static DEFINE_MUTEX(swapon_mutex); + + static DECLARE_WAIT_QUEUE_HEAD(proc_poll_wait); + /* Activity counter to indicate that a swapon or swapoff has occurred */ +-static atomic_t proc_poll_event = ATOMIC_INIT(0); ++static atomic_unchecked_t proc_poll_event = ATOMIC_INIT(0); + + static inline unsigned char swap_count(unsigned char ent) + { +@@ -1671,7 +1671,7 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile) + } + filp_close(swap_file, NULL); + err = 0; +- atomic_inc(&proc_poll_event); ++ atomic_inc_unchecked(&proc_poll_event); + wake_up_interruptible(&proc_poll_wait); + + out_dput: +@@ -1687,8 +1687,8 @@ static unsigned swaps_poll(struct file *file, poll_table *wait) + + poll_wait(file, &proc_poll_wait, wait); + +- if (seq->poll_event != atomic_read(&proc_poll_event)) { +- seq->poll_event = atomic_read(&proc_poll_event); ++ if (seq->poll_event != atomic_read_unchecked(&proc_poll_event)) { ++ seq->poll_event = atomic_read_unchecked(&proc_poll_event); + return POLLIN | POLLRDNORM | POLLERR | POLLPRI; + } + +@@ -1786,7 +1786,7 @@ static int swaps_open(struct inode *inode, struct file *file) + return ret; + + seq = file->private_data; +- seq->poll_event = atomic_read(&proc_poll_event); ++ seq->poll_event = atomic_read_unchecked(&proc_poll_event); + return 0; + } + +@@ -2123,7 +2123,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags) + (p->flags & SWP_DISCARDABLE) ? "D" : ""); + + mutex_unlock(&swapon_mutex); +- atomic_inc(&proc_poll_event); ++ atomic_inc_unchecked(&proc_poll_event); + wake_up_interruptible(&proc_poll_wait); + + if (S_ISREG(inode->i_mode)) +diff --git a/mm/util.c b/mm/util.c +index ae962b3..0bba886 100644 +--- a/mm/util.c ++++ b/mm/util.c +@@ -284,6 +284,12 @@ done: + void arch_pick_mmap_layout(struct mm_struct *mm) + { + mm->mmap_base = TASK_UNMAPPED_BASE; ++ ++#ifdef CONFIG_PAX_RANDMMAP ++ if (mm->pax_flags & MF_PAX_RANDMMAP) ++ mm->mmap_base += mm->delta_mmap; ++#endif ++ + mm->get_unmapped_area = arch_get_unmapped_area; + mm->unmap_area = arch_unmap_area; + } +diff --git a/mm/vmalloc.c b/mm/vmalloc.c +index 1196c77..2e608e8 100644 +--- a/mm/vmalloc.c ++++ b/mm/vmalloc.c +@@ -39,8 +39,19 @@ static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end) + + pte = pte_offset_kernel(pmd, addr); + do { +- pte_t ptent = ptep_get_and_clear(&init_mm, addr, pte); +- WARN_ON(!pte_none(ptent) && !pte_present(ptent)); ++ ++#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) ++ if ((unsigned long)MODULES_EXEC_VADDR <= addr && addr < (unsigned long)MODULES_EXEC_END) { ++ BUG_ON(!pte_exec(*pte)); ++ set_pte_at(&init_mm, addr, pte, pfn_pte(__pa(addr) >> PAGE_SHIFT, PAGE_KERNEL_EXEC)); ++ continue; ++ } ++#endif ++ ++ { ++ pte_t ptent = ptep_get_and_clear(&init_mm, addr, pte); ++ WARN_ON(!pte_none(ptent) && !pte_present(ptent)); ++ } + } while (pte++, addr += PAGE_SIZE, addr != end); + } + +@@ -91,6 +102,7 @@ static int vmap_pte_range(pmd_t *pmd, unsigned long addr, + unsigned long end, pgprot_t prot, struct page **pages, int *nr) + { + pte_t *pte; ++ int ret = -ENOMEM; + + /* + * nr is a running index into the array which helps higher level +@@ -100,17 +112,30 @@ static int vmap_pte_range(pmd_t *pmd, unsigned long addr, + pte = pte_alloc_kernel(pmd, addr); + if (!pte) + return -ENOMEM; ++ ++ pax_open_kernel(); + do { + struct page *page = pages[*nr]; + +- if (WARN_ON(!pte_none(*pte))) +- return -EBUSY; +- if (WARN_ON(!page)) +- return -ENOMEM; ++#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) ++ if (pgprot_val(prot) & _PAGE_NX) ++#endif ++ ++ if (WARN_ON(!pte_none(*pte))) { ++ ret = -EBUSY; ++ goto out; ++ } ++ if (WARN_ON(!page)) { ++ ret = -ENOMEM; ++ goto out; ++ } + set_pte_at(&init_mm, addr, pte, mk_pte(page, prot)); + (*nr)++; + } while (pte++, addr += PAGE_SIZE, addr != end); +- return 0; ++ ret = 0; ++out: ++ pax_close_kernel(); ++ return ret; + } + + static int vmap_pmd_range(pud_t *pud, unsigned long addr, +@@ -119,7 +144,7 @@ static int vmap_pmd_range(pud_t *pud, unsigned long addr, + pmd_t *pmd; + unsigned long next; + +- pmd = pmd_alloc(&init_mm, pud, addr); ++ pmd = pmd_alloc_kernel(&init_mm, pud, addr); + if (!pmd) + return -ENOMEM; + do { +@@ -136,7 +161,7 @@ static int vmap_pud_range(pgd_t *pgd, unsigned long addr, + pud_t *pud; + unsigned long next; + +- pud = pud_alloc(&init_mm, pgd, addr); ++ pud = pud_alloc_kernel(&init_mm, pgd, addr); + if (!pud) + return -ENOMEM; + do { +@@ -191,11 +216,20 @@ int is_vmalloc_or_module_addr(const void *x) + * and fall back on vmalloc() if that fails. Others + * just put it in the vmalloc space. + */ +-#if defined(CONFIG_MODULES) && defined(MODULES_VADDR) ++#ifdef CONFIG_MODULES ++#ifdef MODULES_VADDR + unsigned long addr = (unsigned long)x; + if (addr >= MODULES_VADDR && addr < MODULES_END) + return 1; + #endif ++ ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) ++ if (x >= (const void *)MODULES_EXEC_VADDR && x < (const void *)MODULES_EXEC_END) ++ return 1; ++#endif ++ ++#endif ++ + return is_vmalloc_addr(x); + } + +@@ -216,8 +250,14 @@ struct page *vmalloc_to_page(const void *vmalloc_addr) + + if (!pgd_none(*pgd)) { + pud_t *pud = pud_offset(pgd, addr); ++#ifdef CONFIG_X86 ++ if (!pud_large(*pud)) ++#endif + if (!pud_none(*pud)) { + pmd_t *pmd = pmd_offset(pud, addr); ++#ifdef CONFIG_X86 ++ if (!pmd_large(*pmd)) ++#endif + if (!pmd_none(*pmd)) { + pte_t *ptep, pte; + +@@ -332,6 +372,10 @@ static void purge_vmap_area_lazy(void); + static struct vmap_area *alloc_vmap_area(unsigned long size, + unsigned long align, + unsigned long vstart, unsigned long vend, ++ int node, gfp_t gfp_mask) __size_overflow(1); ++static struct vmap_area *alloc_vmap_area(unsigned long size, ++ unsigned long align, ++ unsigned long vstart, unsigned long vend, + int node, gfp_t gfp_mask) + { + struct vmap_area *va; +@@ -1320,6 +1364,16 @@ static struct vm_struct *__get_vm_area_node(unsigned long size, + struct vm_struct *area; + + BUG_ON(in_interrupt()); ++ ++#if defined(CONFIG_MODULES) && defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC) ++ if (flags & VM_KERNEXEC) { ++ if (start != VMALLOC_START || end != VMALLOC_END) ++ return NULL; ++ start = (unsigned long)MODULES_EXEC_VADDR; ++ end = (unsigned long)MODULES_EXEC_END; ++ } ++#endif ++ + if (flags & VM_IOREMAP) { + int bit = fls(size); + +@@ -1552,6 +1606,11 @@ void *vmap(struct page **pages, unsigned int count, + if (count > totalram_pages) + return NULL; + ++#if defined(CONFIG_MODULES) && defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC) ++ if (!(pgprot_val(prot) & _PAGE_NX)) ++ flags |= VM_KERNEXEC; ++#endif ++ + area = get_vm_area_caller((count << PAGE_SHIFT), flags, + __builtin_return_address(0)); + if (!area) +@@ -1653,6 +1712,13 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align, + if (!size || (size >> PAGE_SHIFT) > totalram_pages) + goto fail; + ++#if defined(CONFIG_MODULES) && defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC) ++ if (!(pgprot_val(prot) & _PAGE_NX)) ++ area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNLIST | VM_KERNEXEC, ++ VMALLOC_START, VMALLOC_END, node, gfp_mask, caller); ++ else ++#endif ++ + area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNLIST, + start, end, node, gfp_mask, caller); + if (!area) +@@ -1826,10 +1892,9 @@ EXPORT_SYMBOL(vzalloc_node); + * For tight control over page level allocator and protection flags + * use __vmalloc() instead. + */ +- + void *vmalloc_exec(unsigned long size) + { +- return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC, ++ return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL_EXEC, + -1, __builtin_return_address(0)); + } + +@@ -2124,6 +2189,8 @@ int remap_vmalloc_range(struct vm_area_struct *vma, void *addr, + unsigned long uaddr = vma->vm_start; + unsigned long usize = vma->vm_end - vma->vm_start; + ++ BUG_ON(vma->vm_mirror); ++ + if ((PAGE_SIZE-1) & (unsigned long)addr) + return -EINVAL; + +@@ -2376,8 +2443,8 @@ struct vm_struct **pcpu_get_vm_areas(const unsigned long *offsets, + return NULL; + } + +- vms = kzalloc(sizeof(vms[0]) * nr_vms, GFP_KERNEL); +- vas = kzalloc(sizeof(vas[0]) * nr_vms, GFP_KERNEL); ++ vms = kcalloc(nr_vms, sizeof(vms[0]), GFP_KERNEL); ++ vas = kcalloc(nr_vms, sizeof(vas[0]), GFP_KERNEL); + if (!vas || !vms) + goto err_free2; + +diff --git a/mm/vmscan.c b/mm/vmscan.c +index 4607cc6..be5bc0a 100644 +--- a/mm/vmscan.c ++++ b/mm/vmscan.c +@@ -3013,7 +3013,10 @@ static void kswapd_try_to_sleep(pg_data_t *pgdat, int order, int classzone_idx) + * them before going back to sleep. + */ + set_pgdat_percpu_threshold(pgdat, calculate_normal_threshold); +- schedule(); ++ ++ if (!kthread_should_stop()) ++ schedule(); ++ + set_pgdat_percpu_threshold(pgdat, calculate_pressure_threshold); + } else { + if (remaining) +diff --git a/mm/vmstat.c b/mm/vmstat.c +index 7db1b9b..e9f6b07 100644 +--- a/mm/vmstat.c ++++ b/mm/vmstat.c +@@ -78,7 +78,7 @@ void vm_events_fold_cpu(int cpu) + * + * vm_stat contains the global counters + */ +-atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS] __cacheline_aligned_in_smp; ++atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS] __cacheline_aligned_in_smp; + EXPORT_SYMBOL(vm_stat); + + #ifdef CONFIG_SMP +@@ -454,7 +454,7 @@ void refresh_cpu_vm_stats(int cpu) + v = p->vm_stat_diff[i]; + p->vm_stat_diff[i] = 0; + local_irq_restore(flags); +- atomic_long_add(v, &zone->vm_stat[i]); ++ atomic_long_add_unchecked(v, &zone->vm_stat[i]); + global_diff[i] += v; + #ifdef CONFIG_NUMA + /* 3 seconds idle till flush */ +@@ -492,7 +492,7 @@ void refresh_cpu_vm_stats(int cpu) + + for (i = 0; i < NR_VM_ZONE_STAT_ITEMS; i++) + if (global_diff[i]) +- atomic_long_add(global_diff[i], &vm_stat[i]); ++ atomic_long_add_unchecked(global_diff[i], &vm_stat[i]); + } + + #endif +@@ -1208,10 +1208,20 @@ static int __init setup_vmstat(void) + start_cpu_timer(cpu); + #endif + #ifdef CONFIG_PROC_FS +- proc_create("buddyinfo", S_IRUGO, NULL, &fragmentation_file_operations); +- proc_create("pagetypeinfo", S_IRUGO, NULL, &pagetypeinfo_file_ops); +- proc_create("vmstat", S_IRUGO, NULL, &proc_vmstat_file_operations); +- proc_create("zoneinfo", S_IRUGO, NULL, &proc_zoneinfo_file_operations); ++ { ++ mode_t gr_mode = S_IRUGO; ++#ifdef CONFIG_GRKERNSEC_PROC_ADD ++ gr_mode = S_IRUSR; ++#endif ++ proc_create("buddyinfo", gr_mode, NULL, &fragmentation_file_operations); ++ proc_create("pagetypeinfo", gr_mode, NULL, &pagetypeinfo_file_ops); ++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP ++ proc_create("vmstat", gr_mode | S_IRGRP, NULL, &proc_vmstat_file_operations); ++#else ++ proc_create("vmstat", gr_mode, NULL, &proc_vmstat_file_operations); ++#endif ++ proc_create("zoneinfo", gr_mode, NULL, &proc_zoneinfo_file_operations); ++ } + #endif + return 0; + } +diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c +index efea35b..9c8dd0b 100644 +--- a/net/8021q/vlan.c ++++ b/net/8021q/vlan.c +@@ -554,8 +554,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg) + err = -EPERM; + if (!capable(CAP_NET_ADMIN)) + break; +- if ((args.u.name_type >= 0) && +- (args.u.name_type < VLAN_NAME_TYPE_HIGHEST)) { ++ if (args.u.name_type < VLAN_NAME_TYPE_HIGHEST) { + struct vlan_net *vn; + + vn = net_generic(net, vlan_net_id); +diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c +index fccae26..e7ece2f 100644 +--- a/net/9p/trans_fd.c ++++ b/net/9p/trans_fd.c +@@ -425,7 +425,7 @@ static int p9_fd_write(struct p9_client *client, void *v, int len) + oldfs = get_fs(); + set_fs(get_ds()); + /* The cast to a user pointer is valid due to the set_fs() */ +- ret = vfs_write(ts->wr, (__force void __user *)v, len, &ts->wr->f_pos); ++ ret = vfs_write(ts->wr, (void __force_user *)v, len, &ts->wr->f_pos); + set_fs(oldfs); + + if (ret <= 0 && ret != -ERESTARTSYS && ret != -EAGAIN) +diff --git a/net/atm/atm_misc.c b/net/atm/atm_misc.c +index 876fbe8..8bbea9f 100644 +--- a/net/atm/atm_misc.c ++++ b/net/atm/atm_misc.c +@@ -17,7 +17,7 @@ int atm_charge(struct atm_vcc *vcc, int truesize) + if (atomic_read(&sk_atm(vcc)->sk_rmem_alloc) <= sk_atm(vcc)->sk_rcvbuf) + return 1; + atm_return(vcc, truesize); +- atomic_inc(&vcc->stats->rx_drop); ++ atomic_inc_unchecked(&vcc->stats->rx_drop); + return 0; + } + EXPORT_SYMBOL(atm_charge); +@@ -39,7 +39,7 @@ struct sk_buff *atm_alloc_charge(struct atm_vcc *vcc, int pdu_size, + } + } + atm_return(vcc, guess); +- atomic_inc(&vcc->stats->rx_drop); ++ atomic_inc_unchecked(&vcc->stats->rx_drop); + return NULL; + } + EXPORT_SYMBOL(atm_alloc_charge); +@@ -86,7 +86,7 @@ EXPORT_SYMBOL(atm_pcr_goal); + + void sonet_copy_stats(struct k_sonet_stats *from, struct sonet_stats *to) + { +-#define __HANDLE_ITEM(i) to->i = atomic_read(&from->i) ++#define __HANDLE_ITEM(i) to->i = atomic_read_unchecked(&from->i) + __SONET_ITEMS + #undef __HANDLE_ITEM + } +@@ -94,7 +94,7 @@ EXPORT_SYMBOL(sonet_copy_stats); + + void sonet_subtract_stats(struct k_sonet_stats *from, struct sonet_stats *to) + { +-#define __HANDLE_ITEM(i) atomic_sub(to->i, &from->i) ++#define __HANDLE_ITEM(i) atomic_sub_unchecked(to->i,&from->i) + __SONET_ITEMS + #undef __HANDLE_ITEM + } +diff --git a/net/atm/lec.h b/net/atm/lec.h +index dfc0719..47c5322 100644 +--- a/net/atm/lec.h ++++ b/net/atm/lec.h +@@ -48,7 +48,7 @@ struct lane2_ops { + const u8 *tlvs, u32 sizeoftlvs); + void (*associate_indicator) (struct net_device *dev, const u8 *mac_addr, + const u8 *tlvs, u32 sizeoftlvs); +-}; ++} __no_const; + + /* + * ATM LAN Emulation supports both LLC & Dix Ethernet EtherType +diff --git a/net/atm/mpc.h b/net/atm/mpc.h +index 0919a88..a23d54e 100644 +--- a/net/atm/mpc.h ++++ b/net/atm/mpc.h +@@ -33,7 +33,7 @@ struct mpoa_client { + struct mpc_parameters parameters; /* parameters for this client */ + + const struct net_device_ops *old_ops; +- struct net_device_ops new_ops; ++ net_device_ops_no_const new_ops; + }; + + +diff --git a/net/atm/proc.c b/net/atm/proc.c +index 0d020de..011c7bb 100644 +--- a/net/atm/proc.c ++++ b/net/atm/proc.c +@@ -45,9 +45,9 @@ static void add_stats(struct seq_file *seq, const char *aal, + const struct k_atm_aal_stats *stats) + { + seq_printf(seq, "%s ( %d %d %d %d %d )", aal, +- atomic_read(&stats->tx), atomic_read(&stats->tx_err), +- atomic_read(&stats->rx), atomic_read(&stats->rx_err), +- atomic_read(&stats->rx_drop)); ++ atomic_read_unchecked(&stats->tx),atomic_read_unchecked(&stats->tx_err), ++ atomic_read_unchecked(&stats->rx),atomic_read_unchecked(&stats->rx_err), ++ atomic_read_unchecked(&stats->rx_drop)); + } + + static void atm_dev_info(struct seq_file *seq, const struct atm_dev *dev) +diff --git a/net/atm/resources.c b/net/atm/resources.c +index 23f45ce..c748f1a 100644 +--- a/net/atm/resources.c ++++ b/net/atm/resources.c +@@ -160,7 +160,7 @@ EXPORT_SYMBOL(atm_dev_deregister); + static void copy_aal_stats(struct k_atm_aal_stats *from, + struct atm_aal_stats *to) + { +-#define __HANDLE_ITEM(i) to->i = atomic_read(&from->i) ++#define __HANDLE_ITEM(i) to->i = atomic_read_unchecked(&from->i) + __AAL_STAT_ITEMS + #undef __HANDLE_ITEM + } +@@ -168,7 +168,7 @@ static void copy_aal_stats(struct k_atm_aal_stats *from, + static void subtract_aal_stats(struct k_atm_aal_stats *from, + struct atm_aal_stats *to) + { +-#define __HANDLE_ITEM(i) atomic_sub(to->i, &from->i) ++#define __HANDLE_ITEM(i) atomic_sub_unchecked(to->i, &from->i) + __AAL_STAT_ITEMS + #undef __HANDLE_ITEM + } +diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c +index a6d5d63..1cc6c2b 100644 +--- a/net/batman-adv/bat_iv_ogm.c ++++ b/net/batman-adv/bat_iv_ogm.c +@@ -539,7 +539,7 @@ static void bat_iv_ogm_schedule(struct hard_iface *hard_iface, + + /* change sequence number to network order */ + batman_ogm_packet->seqno = +- htonl((uint32_t)atomic_read(&hard_iface->seqno)); ++ htonl((uint32_t)atomic_read_unchecked(&hard_iface->seqno)); + + batman_ogm_packet->ttvn = atomic_read(&bat_priv->ttvn); + batman_ogm_packet->tt_crc = htons((uint16_t) +@@ -559,7 +559,7 @@ static void bat_iv_ogm_schedule(struct hard_iface *hard_iface, + else + batman_ogm_packet->gw_flags = NO_FLAGS; + +- atomic_inc(&hard_iface->seqno); ++ atomic_inc_unchecked(&hard_iface->seqno); + + slide_own_bcast_window(hard_iface); + bat_iv_ogm_queue_add(bat_priv, hard_iface->packet_buff, +@@ -917,7 +917,7 @@ static void bat_iv_ogm_process(const struct ethhdr *ethhdr, + return; + + /* could be changed by schedule_own_packet() */ +- if_incoming_seqno = atomic_read(&if_incoming->seqno); ++ if_incoming_seqno = atomic_read_unchecked(&if_incoming->seqno); + + has_directlink_flag = (batman_ogm_packet->flags & DIRECTLINK ? 1 : 0); + +diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c +index 3778977..f6a9450 100644 +--- a/net/batman-adv/hard-interface.c ++++ b/net/batman-adv/hard-interface.c +@@ -328,8 +328,8 @@ int hardif_enable_interface(struct hard_iface *hard_iface, + hard_iface->batman_adv_ptype.dev = hard_iface->net_dev; + dev_add_pack(&hard_iface->batman_adv_ptype); + +- atomic_set(&hard_iface->seqno, 1); +- atomic_set(&hard_iface->frag_seqno, 1); ++ atomic_set_unchecked(&hard_iface->seqno, 1); ++ atomic_set_unchecked(&hard_iface->frag_seqno, 1); + bat_info(hard_iface->soft_iface, "Adding interface: %s\n", + hard_iface->net_dev->name); + +diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c +index a5590f4..8d31969 100644 +--- a/net/batman-adv/soft-interface.c ++++ b/net/batman-adv/soft-interface.c +@@ -645,7 +645,7 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface) + + /* set broadcast sequence number */ + bcast_packet->seqno = +- htonl(atomic_inc_return(&bat_priv->bcast_seqno)); ++ htonl(atomic_inc_return_unchecked(&bat_priv->bcast_seqno)); + + add_bcast_packet_to_list(bat_priv, skb, 1); + +@@ -841,7 +841,7 @@ struct net_device *softif_create(const char *name) + atomic_set(&bat_priv->batman_queue_left, BATMAN_QUEUE_LEN); + + atomic_set(&bat_priv->mesh_state, MESH_INACTIVE); +- atomic_set(&bat_priv->bcast_seqno, 1); ++ atomic_set_unchecked(&bat_priv->bcast_seqno, 1); + atomic_set(&bat_priv->ttvn, 0); + atomic_set(&bat_priv->tt_local_changes, 0); + atomic_set(&bat_priv->tt_ogm_append_cnt, 0); +diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h +index 302efb5..1590365 100644 +--- a/net/batman-adv/types.h ++++ b/net/batman-adv/types.h +@@ -38,8 +38,8 @@ struct hard_iface { + int16_t if_num; + char if_status; + struct net_device *net_dev; +- atomic_t seqno; +- atomic_t frag_seqno; ++ atomic_unchecked_t seqno; ++ atomic_unchecked_t frag_seqno; + unsigned char *packet_buff; + int packet_len; + struct kobject *hardif_obj; +@@ -155,7 +155,7 @@ struct bat_priv { + atomic_t orig_interval; /* uint */ + atomic_t hop_penalty; /* uint */ + atomic_t log_level; /* uint */ +- atomic_t bcast_seqno; ++ atomic_unchecked_t bcast_seqno; + atomic_t bcast_queue_left; + atomic_t batman_queue_left; + atomic_t ttvn; /* translation table version number */ +diff --git a/net/batman-adv/unicast.c b/net/batman-adv/unicast.c +index 676f6a6..3b4e668 100644 +--- a/net/batman-adv/unicast.c ++++ b/net/batman-adv/unicast.c +@@ -264,7 +264,7 @@ int frag_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv, + frag1->flags = UNI_FRAG_HEAD | large_tail; + frag2->flags = large_tail; + +- seqno = atomic_add_return(2, &hard_iface->frag_seqno); ++ seqno = atomic_add_return_unchecked(2, &hard_iface->frag_seqno); + frag1->seqno = htons(seqno - 1); + frag2->seqno = htons(seqno); + +diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c +index 5238b6b..c9798ce 100644 +--- a/net/bluetooth/hci_conn.c ++++ b/net/bluetooth/hci_conn.c +@@ -233,7 +233,7 @@ void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]) + memset(&cp, 0, sizeof(cp)); + + cp.handle = cpu_to_le16(conn->handle); +- memcpy(cp.ltk, ltk, sizeof(ltk)); ++ memcpy(cp.ltk, ltk, sizeof(cp.ltk)); + + hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp); + } +diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c +index 6f9c25b..d19fd66 100644 +--- a/net/bluetooth/l2cap_core.c ++++ b/net/bluetooth/l2cap_core.c +@@ -2466,8 +2466,10 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len, voi + break; + + case L2CAP_CONF_RFC: +- if (olen == sizeof(rfc)) +- memcpy(&rfc, (void *)val, olen); ++ if (olen != sizeof(rfc)) ++ break; ++ ++ memcpy(&rfc, (void *)val, olen); + + if (test_bit(CONF_STATE2_DEVICE, &chan->conf_state) && + rfc.mode != chan->mode) +@@ -2585,8 +2587,10 @@ static void l2cap_conf_rfc_get(struct l2cap_chan *chan, void *rsp, int len) + + switch (type) { + case L2CAP_CONF_RFC: +- if (olen == sizeof(rfc)) +- memcpy(&rfc, (void *)val, olen); ++ if (olen != sizeof(rfc)) ++ break; ++ ++ memcpy(&rfc, (void *)val, olen); + goto done; + } + } +diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c +index 5fe2ff3..10968b5 100644 +--- a/net/bridge/netfilter/ebtables.c ++++ b/net/bridge/netfilter/ebtables.c +@@ -1523,7 +1523,7 @@ static int do_ebt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len) + tmp.valid_hooks = t->table->valid_hooks; + } + mutex_unlock(&ebt_mutex); +- if (copy_to_user(user, &tmp, *len) != 0){ ++ if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0){ + BUGPRINT("c2u Didn't work\n"); + ret = -EFAULT; + break; +diff --git a/net/caif/caif_dev.c b/net/caif/caif_dev.c +index aa6f716..7bf4c21 100644 +--- a/net/caif/caif_dev.c ++++ b/net/caif/caif_dev.c +@@ -562,9 +562,9 @@ static int __init caif_device_init(void) + + static void __exit caif_device_exit(void) + { +- unregister_pernet_subsys(&caif_net_ops); + unregister_netdevice_notifier(&caif_device_notifier); + dev_remove_pack(&caif_packet_type); ++ unregister_pernet_subsys(&caif_net_ops); + } + + module_init(caif_device_init); +diff --git a/net/caif/cfctrl.c b/net/caif/cfctrl.c +index 5cf5222..6f704ad 100644 +--- a/net/caif/cfctrl.c ++++ b/net/caif/cfctrl.c +@@ -9,6 +9,7 @@ + #include <linux/stddef.h> + #include <linux/spinlock.h> + #include <linux/slab.h> ++#include <linux/sched.h> + #include <net/caif/caif_layer.h> + #include <net/caif/cfpkt.h> + #include <net/caif/cfctrl.h> +@@ -42,8 +43,8 @@ struct cflayer *cfctrl_create(void) + memset(&dev_info, 0, sizeof(dev_info)); + dev_info.id = 0xff; + cfsrvl_init(&this->serv, 0, &dev_info, false); +- atomic_set(&this->req_seq_no, 1); +- atomic_set(&this->rsp_seq_no, 1); ++ atomic_set_unchecked(&this->req_seq_no, 1); ++ atomic_set_unchecked(&this->rsp_seq_no, 1); + this->serv.layer.receive = cfctrl_recv; + sprintf(this->serv.layer.name, "ctrl"); + this->serv.layer.ctrlcmd = cfctrl_ctrlcmd; +@@ -129,8 +130,8 @@ static void cfctrl_insert_req(struct cfctrl *ctrl, + struct cfctrl_request_info *req) + { + spin_lock_bh(&ctrl->info_list_lock); +- atomic_inc(&ctrl->req_seq_no); +- req->sequence_no = atomic_read(&ctrl->req_seq_no); ++ atomic_inc_unchecked(&ctrl->req_seq_no); ++ req->sequence_no = atomic_read_unchecked(&ctrl->req_seq_no); + list_add_tail(&req->list, &ctrl->list); + spin_unlock_bh(&ctrl->info_list_lock); + } +@@ -148,7 +149,7 @@ static struct cfctrl_request_info *cfctrl_remove_req(struct cfctrl *ctrl, + if (p != first) + pr_warn("Requests are not received in order\n"); + +- atomic_set(&ctrl->rsp_seq_no, ++ atomic_set_unchecked(&ctrl->rsp_seq_no, + p->sequence_no); + list_del(&p->list); + goto out; +diff --git a/net/can/gw.c b/net/can/gw.c +index 3d79b12..8de85fa 100644 +--- a/net/can/gw.c ++++ b/net/can/gw.c +@@ -96,7 +96,7 @@ struct cf_mod { + struct { + void (*xor)(struct can_frame *cf, struct cgw_csum_xor *xor); + void (*crc8)(struct can_frame *cf, struct cgw_csum_crc8 *crc8); +- } csumfunc; ++ } __no_const csumfunc; + }; + + +diff --git a/net/compat.c b/net/compat.c +index e055708..3f80795 100644 +--- a/net/compat.c ++++ b/net/compat.c +@@ -71,9 +71,9 @@ int get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr __user *umsg) + __get_user(kmsg->msg_controllen, &umsg->msg_controllen) || + __get_user(kmsg->msg_flags, &umsg->msg_flags)) + return -EFAULT; +- kmsg->msg_name = compat_ptr(tmp1); +- kmsg->msg_iov = compat_ptr(tmp2); +- kmsg->msg_control = compat_ptr(tmp3); ++ kmsg->msg_name = (void __force_kernel *)compat_ptr(tmp1); ++ kmsg->msg_iov = (void __force_kernel *)compat_ptr(tmp2); ++ kmsg->msg_control = (void __force_kernel *)compat_ptr(tmp3); + return 0; + } + +@@ -85,7 +85,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov, + + if (kern_msg->msg_namelen) { + if (mode == VERIFY_READ) { +- int err = move_addr_to_kernel(kern_msg->msg_name, ++ int err = move_addr_to_kernel((void __force_user *)kern_msg->msg_name, + kern_msg->msg_namelen, + kern_address); + if (err < 0) +@@ -96,7 +96,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov, + kern_msg->msg_name = NULL; + + tot_len = iov_from_user_compat_to_kern(kern_iov, +- (struct compat_iovec __user *)kern_msg->msg_iov, ++ (struct compat_iovec __force_user *)kern_msg->msg_iov, + kern_msg->msg_iovlen); + if (tot_len >= 0) + kern_msg->msg_iov = kern_iov; +@@ -116,20 +116,20 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov, + + #define CMSG_COMPAT_FIRSTHDR(msg) \ + (((msg)->msg_controllen) >= sizeof(struct compat_cmsghdr) ? \ +- (struct compat_cmsghdr __user *)((msg)->msg_control) : \ ++ (struct compat_cmsghdr __force_user *)((msg)->msg_control) : \ + (struct compat_cmsghdr __user *)NULL) + + #define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \ + ((ucmlen) >= sizeof(struct compat_cmsghdr) && \ + (ucmlen) <= (unsigned long) \ + ((mhdr)->msg_controllen - \ +- ((char *)(ucmsg) - (char *)(mhdr)->msg_control))) ++ ((char __force_kernel *)(ucmsg) - (char *)(mhdr)->msg_control))) + + static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg, + struct compat_cmsghdr __user *cmsg, int cmsg_len) + { + char __user *ptr = (char __user *)cmsg + CMSG_COMPAT_ALIGN(cmsg_len); +- if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control) > ++ if ((unsigned long)(ptr + 1 - (char __force_user *)msg->msg_control) > + msg->msg_controllen) + return NULL; + return (struct compat_cmsghdr __user *)ptr; +@@ -219,7 +219,7 @@ Efault: + + int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data) + { +- struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control; ++ struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __force_user *) kmsg->msg_control; + struct compat_cmsghdr cmhdr; + int cmlen; + +@@ -275,7 +275,7 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat + + void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm) + { +- struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control; ++ struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __force_user *) kmsg->msg_control; + int fdmax = (kmsg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int); + int fdnum = scm->fp->count; + struct file **fp = scm->fp->fp; +@@ -372,7 +372,7 @@ static int do_set_sock_timeout(struct socket *sock, int level, + return -EFAULT; + old_fs = get_fs(); + set_fs(KERNEL_DS); +- err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime)); ++ err = sock_setsockopt(sock, level, optname, (char __force_user *)&ktime, sizeof(ktime)); + set_fs(old_fs); + + return err; +@@ -433,7 +433,7 @@ static int do_get_sock_timeout(struct socket *sock, int level, int optname, + len = sizeof(ktime); + old_fs = get_fs(); + set_fs(KERNEL_DS); +- err = sock_getsockopt(sock, level, optname, (char *) &ktime, &len); ++ err = sock_getsockopt(sock, level, optname, (char __force_user *) &ktime, (int __force_user *)&len); + set_fs(old_fs); + + if (!err) { +@@ -576,7 +576,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname, + case MCAST_JOIN_GROUP: + case MCAST_LEAVE_GROUP: + { +- struct compat_group_req __user *gr32 = (void *)optval; ++ struct compat_group_req __user *gr32 = (void __user *)optval; + struct group_req __user *kgr = + compat_alloc_user_space(sizeof(struct group_req)); + u32 interface; +@@ -597,7 +597,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname, + case MCAST_BLOCK_SOURCE: + case MCAST_UNBLOCK_SOURCE: + { +- struct compat_group_source_req __user *gsr32 = (void *)optval; ++ struct compat_group_source_req __user *gsr32 = (void __user *)optval; + struct group_source_req __user *kgsr = compat_alloc_user_space( + sizeof(struct group_source_req)); + u32 interface; +@@ -618,7 +618,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname, + } + case MCAST_MSFILTER: + { +- struct compat_group_filter __user *gf32 = (void *)optval; ++ struct compat_group_filter __user *gf32 = (void __user *)optval; + struct group_filter __user *kgf; + u32 interface, fmode, numsrc; + +@@ -656,7 +656,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname, + char __user *optval, int __user *optlen, + int (*getsockopt)(struct sock *, int, int, char __user *, int __user *)) + { +- struct compat_group_filter __user *gf32 = (void *)optval; ++ struct compat_group_filter __user *gf32 = (void __user *)optval; + struct group_filter __user *kgf; + int __user *koptlen; + u32 interface, fmode, numsrc; +diff --git a/net/core/datagram.c b/net/core/datagram.c +index e4fbfd6..6a6ac94 100644 +--- a/net/core/datagram.c ++++ b/net/core/datagram.c +@@ -290,7 +290,7 @@ int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags) + } + + kfree_skb(skb); +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + sk_mem_reclaim_partial(sk); + + return err; +diff --git a/net/core/dev.c b/net/core/dev.c +index 533c586..f78a55f 100644 +--- a/net/core/dev.c ++++ b/net/core/dev.c +@@ -1136,9 +1136,13 @@ void dev_load(struct net *net, const char *name) + if (no_module && capable(CAP_NET_ADMIN)) + no_module = request_module("netdev-%s", name); + if (no_module && capable(CAP_SYS_MODULE)) { ++#ifdef CONFIG_GRKERNSEC_MODHARDEN ++ ___request_module(true, "grsec_modharden_netdev", "%s", name); ++#else + if (!request_module("%s", name)) + pr_err("Loading kernel module for a network device with CAP_SYS_MODULE (deprecated). Use CAP_NET_ADMIN and alias netdev-%s instead.\n", + name); ++#endif + } + } + EXPORT_SYMBOL(dev_load); +@@ -1602,7 +1606,7 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb) + { + if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY) { + if (skb_copy_ubufs(skb, GFP_ATOMIC)) { +- atomic_long_inc(&dev->rx_dropped); ++ atomic_long_inc_unchecked(&dev->rx_dropped); + kfree_skb(skb); + return NET_RX_DROP; + } +@@ -1612,7 +1616,7 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb) + nf_reset(skb); + + if (unlikely(!is_skb_forwardable(dev, skb))) { +- atomic_long_inc(&dev->rx_dropped); ++ atomic_long_inc_unchecked(&dev->rx_dropped); + kfree_skb(skb); + return NET_RX_DROP; + } +@@ -2042,7 +2046,7 @@ static int illegal_highdma(struct net_device *dev, struct sk_buff *skb) + + struct dev_gso_cb { + void (*destructor)(struct sk_buff *skb); +-}; ++} __no_const; + + #define DEV_GSO_CB(skb) ((struct dev_gso_cb *)(skb)->cb) + +@@ -2877,7 +2881,7 @@ enqueue: + + local_irq_restore(flags); + +- atomic_long_inc(&skb->dev->rx_dropped); ++ atomic_long_inc_unchecked(&skb->dev->rx_dropped); + kfree_skb(skb); + return NET_RX_DROP; + } +@@ -2949,7 +2953,7 @@ int netif_rx_ni(struct sk_buff *skb) + } + EXPORT_SYMBOL(netif_rx_ni); + +-static void net_tx_action(struct softirq_action *h) ++static void net_tx_action(void) + { + struct softnet_data *sd = &__get_cpu_var(softnet_data); + +@@ -3237,7 +3241,7 @@ ncls: + if (pt_prev) { + ret = pt_prev->func(skb, skb->dev, pt_prev, orig_dev); + } else { +- atomic_long_inc(&skb->dev->rx_dropped); ++ atomic_long_inc_unchecked(&skb->dev->rx_dropped); + kfree_skb(skb); + /* Jamal, now you will not able to escape explaining + * me how you were going to use this. :-) +@@ -3797,7 +3801,7 @@ void netif_napi_del(struct napi_struct *napi) + } + EXPORT_SYMBOL(netif_napi_del); + +-static void net_rx_action(struct softirq_action *h) ++static void net_rx_action(void) + { + struct softnet_data *sd = &__get_cpu_var(softnet_data); + unsigned long time_limit = jiffies + 2; +@@ -4267,8 +4271,13 @@ static int ptype_seq_show(struct seq_file *seq, void *v) + else + seq_printf(seq, "%04x", ntohs(pt->type)); + ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ seq_printf(seq, " %-8s %p\n", ++ pt->dev ? pt->dev->name : "", NULL); ++#else + seq_printf(seq, " %-8s %pF\n", + pt->dev ? pt->dev->name : "", pt->func); ++#endif + } + + return 0; +@@ -5818,7 +5827,7 @@ struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev, + } else { + netdev_stats_to_stats64(storage, &dev->stats); + } +- storage->rx_dropped += atomic_long_read(&dev->rx_dropped); ++ storage->rx_dropped += atomic_long_read_unchecked(&dev->rx_dropped); + return storage; + } + EXPORT_SYMBOL(dev_get_stats); +diff --git a/net/core/flow.c b/net/core/flow.c +index e318c7e..168b1d0 100644 +--- a/net/core/flow.c ++++ b/net/core/flow.c +@@ -61,7 +61,7 @@ struct flow_cache { + struct timer_list rnd_timer; + }; + +-atomic_t flow_cache_genid = ATOMIC_INIT(0); ++atomic_unchecked_t flow_cache_genid = ATOMIC_INIT(0); + EXPORT_SYMBOL(flow_cache_genid); + static struct flow_cache flow_cache_global; + static struct kmem_cache *flow_cachep __read_mostly; +@@ -86,7 +86,7 @@ static void flow_cache_new_hashrnd(unsigned long arg) + + static int flow_entry_valid(struct flow_cache_entry *fle) + { +- if (atomic_read(&flow_cache_genid) != fle->genid) ++ if (atomic_read_unchecked(&flow_cache_genid) != fle->genid) + return 0; + if (fle->object && !fle->object->ops->check(fle->object)) + return 0; +@@ -259,7 +259,7 @@ flow_cache_lookup(struct net *net, const struct flowi *key, u16 family, u8 dir, + hlist_add_head(&fle->u.hlist, &fcp->hash_table[hash]); + fcp->hash_count++; + } +- } else if (likely(fle->genid == atomic_read(&flow_cache_genid))) { ++ } else if (likely(fle->genid == atomic_read_unchecked(&flow_cache_genid))) { + flo = fle->object; + if (!flo) + goto ret_object; +@@ -280,7 +280,7 @@ nocache: + } + flo = resolver(net, key, family, dir, flo, ctx); + if (fle) { +- fle->genid = atomic_read(&flow_cache_genid); ++ fle->genid = atomic_read_unchecked(&flow_cache_genid); + if (!IS_ERR(flo)) + fle->object = flo; + else +diff --git a/net/core/iovec.c b/net/core/iovec.c +index 7e7aeb0..2a998cb 100644 +--- a/net/core/iovec.c ++++ b/net/core/iovec.c +@@ -42,7 +42,7 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a + if (m->msg_namelen) { + if (mode == VERIFY_READ) { + void __user *namep; +- namep = (void __user __force *) m->msg_name; ++ namep = (void __force_user *) m->msg_name; + err = move_addr_to_kernel(namep, m->msg_namelen, + address); + if (err < 0) +@@ -54,7 +54,7 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a + } + + size = m->msg_iovlen * sizeof(struct iovec); +- if (copy_from_user(iov, (void __user __force *) m->msg_iov, size)) ++ if (copy_from_user(iov, (void __force_user *) m->msg_iov, size)) + return -EFAULT; + + m->msg_iov = iov; +diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c +index 90430b7..0032ec0 100644 +--- a/net/core/rtnetlink.c ++++ b/net/core/rtnetlink.c +@@ -56,7 +56,7 @@ struct rtnl_link { + rtnl_doit_func doit; + rtnl_dumpit_func dumpit; + rtnl_calcit_func calcit; +-}; ++} __no_const; + + static DEFINE_MUTEX(rtnl_mutex); + +diff --git a/net/core/scm.c b/net/core/scm.c +index 611c5ef..88f6d6d 100644 +--- a/net/core/scm.c ++++ b/net/core/scm.c +@@ -219,7 +219,7 @@ EXPORT_SYMBOL(__scm_send); + int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data) + { + struct cmsghdr __user *cm +- = (__force struct cmsghdr __user *)msg->msg_control; ++ = (struct cmsghdr __force_user *)msg->msg_control; + struct cmsghdr cmhdr; + int cmlen = CMSG_LEN(len); + int err; +@@ -242,7 +242,7 @@ int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data) + err = -EFAULT; + if (copy_to_user(cm, &cmhdr, sizeof cmhdr)) + goto out; +- if (copy_to_user(CMSG_DATA(cm), data, cmlen - sizeof(struct cmsghdr))) ++ if (copy_to_user((void __force_user *)CMSG_DATA((void __force_kernel *)cm), data, cmlen - sizeof(struct cmsghdr))) + goto out; + cmlen = CMSG_SPACE(len); + if (msg->msg_controllen < cmlen) +@@ -258,7 +258,7 @@ EXPORT_SYMBOL(put_cmsg); + void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm) + { + struct cmsghdr __user *cm +- = (__force struct cmsghdr __user*)msg->msg_control; ++ = (struct cmsghdr __force_user *)msg->msg_control; + + int fdmax = 0; + int fdnum = scm->fp->count; +@@ -278,7 +278,7 @@ void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm) + if (fdnum < fdmax) + fdmax = fdnum; + +- for (i=0, cmfptr=(__force int __user *)CMSG_DATA(cm); i<fdmax; ++ for (i=0, cmfptr=(int __force_user *)CMSG_DATA((void __force_kernel *)cm); i<fdmax; + i++, cmfptr++) + { + int new_fd; +diff --git a/net/core/sock.c b/net/core/sock.c +index 0f8402e..f0b6338 100644 +--- a/net/core/sock.c ++++ b/net/core/sock.c +@@ -340,7 +340,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) + struct sk_buff_head *list = &sk->sk_receive_queue; + + if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf) { +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + trace_sock_rcvqueue_full(sk, skb); + return -ENOMEM; + } +@@ -350,7 +350,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) + return err; + + if (!sk_rmem_schedule(sk, skb->truesize)) { +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + return -ENOBUFS; + } + +@@ -370,7 +370,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) + skb_dst_force(skb); + + spin_lock_irqsave(&list->lock, flags); +- skb->dropcount = atomic_read(&sk->sk_drops); ++ skb->dropcount = atomic_read_unchecked(&sk->sk_drops); + __skb_queue_tail(list, skb); + spin_unlock_irqrestore(&list->lock, flags); + +@@ -390,7 +390,7 @@ int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested) + skb->dev = NULL; + + if (sk_rcvqueues_full(sk, skb)) { +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + goto discard_and_relse; + } + if (nested) +@@ -408,7 +408,7 @@ int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested) + mutex_release(&sk->sk_lock.dep_map, 1, _RET_IP_); + } else if (sk_add_backlog(sk, skb)) { + bh_unlock_sock(sk); +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + goto discard_and_relse; + } + +@@ -984,7 +984,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname, + if (len > sizeof(peercred)) + len = sizeof(peercred); + cred_to_ucred(sk->sk_peer_pid, sk->sk_peer_cred, &peercred); +- if (copy_to_user(optval, &peercred, len)) ++ if (len > sizeof(peercred) || copy_to_user(optval, &peercred, len)) + return -EFAULT; + goto lenout; + } +@@ -997,7 +997,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname, + return -ENOTCONN; + if (lv < len) + return -EINVAL; +- if (copy_to_user(optval, address, len)) ++ if (len > sizeof(address) || copy_to_user(optval, address, len)) + return -EFAULT; + goto lenout; + } +@@ -1043,7 +1043,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname, + + if (len > lv) + len = lv; +- if (copy_to_user(optval, &v, len)) ++ if (len > sizeof(v) || copy_to_user(optval, &v, len)) + return -EFAULT; + lenout: + if (put_user(len, optlen)) +@@ -2131,7 +2131,7 @@ void sock_init_data(struct socket *sock, struct sock *sk) + */ + smp_wmb(); + atomic_set(&sk->sk_refcnt, 1); +- atomic_set(&sk->sk_drops, 0); ++ atomic_set_unchecked(&sk->sk_drops, 0); + } + EXPORT_SYMBOL(sock_init_data); + +diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c +index b9868e1..849f809 100644 +--- a/net/core/sock_diag.c ++++ b/net/core/sock_diag.c +@@ -16,20 +16,27 @@ static DEFINE_MUTEX(sock_diag_table_mutex); + + int sock_diag_check_cookie(void *sk, __u32 *cookie) + { ++#ifndef CONFIG_GRKERNSEC_HIDESYM + if ((cookie[0] != INET_DIAG_NOCOOKIE || + cookie[1] != INET_DIAG_NOCOOKIE) && + ((u32)(unsigned long)sk != cookie[0] || + (u32)((((unsigned long)sk) >> 31) >> 1) != cookie[1])) + return -ESTALE; + else ++#endif + return 0; + } + EXPORT_SYMBOL_GPL(sock_diag_check_cookie); + + void sock_diag_save_cookie(void *sk, __u32 *cookie) + { ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ cookie[0] = 0; ++ cookie[1] = 0; ++#else + cookie[0] = (u32)(unsigned long)sk; + cookie[1] = (u32)(((unsigned long)sk >> 31) >> 1); ++#endif + } + EXPORT_SYMBOL_GPL(sock_diag_save_cookie); + +diff --git a/net/decnet/sysctl_net_decnet.c b/net/decnet/sysctl_net_decnet.c +index 02e75d1..9a57a7c 100644 +--- a/net/decnet/sysctl_net_decnet.c ++++ b/net/decnet/sysctl_net_decnet.c +@@ -174,7 +174,7 @@ static int dn_node_address_handler(ctl_table *table, int write, + + if (len > *lenp) len = *lenp; + +- if (copy_to_user(buffer, addr, len)) ++ if (len > sizeof addr || copy_to_user(buffer, addr, len)) + return -EFAULT; + + *lenp = len; +@@ -237,7 +237,7 @@ static int dn_def_dev_handler(ctl_table *table, int write, + + if (len > *lenp) len = *lenp; + +- if (copy_to_user(buffer, devname, len)) ++ if (len > sizeof devname || copy_to_user(buffer, devname, len)) + return -EFAULT; + + *lenp = len; +diff --git a/net/econet/Kconfig b/net/econet/Kconfig +index 39a2d29..f39c0fe 100644 +--- a/net/econet/Kconfig ++++ b/net/econet/Kconfig +@@ -4,7 +4,7 @@ + + config ECONET + tristate "Acorn Econet/AUN protocols (EXPERIMENTAL)" +- depends on EXPERIMENTAL && INET ++ depends on EXPERIMENTAL && INET && BROKEN + ---help--- + Econet is a fairly old and slow networking protocol mainly used by + Acorn computers to access file and print servers. It uses native +diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c +index c48adc5..667c1d4 100644 +--- a/net/ipv4/cipso_ipv4.c ++++ b/net/ipv4/cipso_ipv4.c +@@ -1725,8 +1725,10 @@ int cipso_v4_validate(const struct sk_buff *skb, unsigned char **option) + case CIPSO_V4_TAG_LOCAL: + /* This is a non-standard tag that we only allow for + * local connections, so if the incoming interface is +- * not the loopback device drop the packet. */ +- if (!(skb->dev->flags & IFF_LOOPBACK)) { ++ * not the loopback device drop the packet. Further, ++ * there is no legitimate reason for setting this from ++ * userspace so reject it if skb is NULL. */ ++ if (skb == NULL || !(skb->dev->flags & IFF_LOOPBACK)) { + err_offset = opt_iter; + goto validate_return_locked; + } +diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c +index cbe3a68..a879b75 100644 +--- a/net/ipv4/fib_frontend.c ++++ b/net/ipv4/fib_frontend.c +@@ -969,12 +969,12 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event, + #ifdef CONFIG_IP_ROUTE_MULTIPATH + fib_sync_up(dev); + #endif +- atomic_inc(&net->ipv4.dev_addr_genid); ++ atomic_inc_unchecked(&net->ipv4.dev_addr_genid); + rt_cache_flush(dev_net(dev), -1); + break; + case NETDEV_DOWN: + fib_del_ifaddr(ifa, NULL); +- atomic_inc(&net->ipv4.dev_addr_genid); ++ atomic_inc_unchecked(&net->ipv4.dev_addr_genid); + if (ifa->ifa_dev->ifa_list == NULL) { + /* Last address was deleted from this interface. + * Disable IP. +@@ -1010,7 +1010,7 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo + #ifdef CONFIG_IP_ROUTE_MULTIPATH + fib_sync_up(dev); + #endif +- atomic_inc(&net->ipv4.dev_addr_genid); ++ atomic_inc_unchecked(&net->ipv4.dev_addr_genid); + rt_cache_flush(dev_net(dev), -1); + break; + case NETDEV_DOWN: +diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c +index 8861f91..ab1e3c1 100644 +--- a/net/ipv4/fib_semantics.c ++++ b/net/ipv4/fib_semantics.c +@@ -698,7 +698,7 @@ __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh) + nh->nh_saddr = inet_select_addr(nh->nh_dev, + nh->nh_gw, + nh->nh_parent->fib_scope); +- nh->nh_saddr_genid = atomic_read(&net->ipv4.dev_addr_genid); ++ nh->nh_saddr_genid = atomic_read_unchecked(&net->ipv4.dev_addr_genid); + + return nh->nh_saddr; + } +diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c +index 984ec65..97ac518 100644 +--- a/net/ipv4/inet_hashtables.c ++++ b/net/ipv4/inet_hashtables.c +@@ -18,12 +18,15 @@ + #include <linux/sched.h> + #include <linux/slab.h> + #include <linux/wait.h> ++#include <linux/security.h> + + #include <net/inet_connection_sock.h> + #include <net/inet_hashtables.h> + #include <net/secure_seq.h> + #include <net/ip.h> + ++extern void gr_update_task_in_ip_table(struct task_struct *task, const struct inet_sock *inet); ++ + /* + * Allocate and initialize a new local port bind bucket. + * The bindhash mutex for snum's hash chain must be held here. +@@ -530,6 +533,8 @@ ok: + twrefcnt += inet_twsk_bind_unhash(tw, hinfo); + spin_unlock(&head->lock); + ++ gr_update_task_in_ip_table(current, inet_sk(sk)); ++ + if (tw) { + inet_twsk_deschedule(tw, death_row); + while (twrefcnt) { +diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c +index dfba343..c827d50 100644 +--- a/net/ipv4/inetpeer.c ++++ b/net/ipv4/inetpeer.c +@@ -487,8 +487,8 @@ relookup: + if (p) { + p->daddr = *daddr; + atomic_set(&p->refcnt, 1); +- atomic_set(&p->rid, 0); +- atomic_set(&p->ip_id_count, ++ atomic_set_unchecked(&p->rid, 0); ++ atomic_set_unchecked(&p->ip_id_count, + (daddr->family == AF_INET) ? + secure_ip_id(daddr->addr.a4) : + secure_ipv6_id(daddr->addr.a6)); +diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c +index 3727e23..517f5df 100644 +--- a/net/ipv4/ip_fragment.c ++++ b/net/ipv4/ip_fragment.c +@@ -318,7 +318,7 @@ static inline int ip_frag_too_far(struct ipq *qp) + return 0; + + start = qp->rid; +- end = atomic_inc_return(&peer->rid); ++ end = atomic_inc_return_unchecked(&peer->rid); + qp->rid = end; + + rc = qp->q.fragments && (end - start) > max; +diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c +index 2fd0fba..83fac99 100644 +--- a/net/ipv4/ip_sockglue.c ++++ b/net/ipv4/ip_sockglue.c +@@ -1137,7 +1137,8 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname, + len = min_t(unsigned int, len, opt->optlen); + if (put_user(len, optlen)) + return -EFAULT; +- if (copy_to_user(optval, opt->__data, len)) ++ if ((len > (sizeof(optbuf) - sizeof(struct ip_options))) || ++ copy_to_user(optval, opt->__data, len)) + return -EFAULT; + return 0; + } +@@ -1268,7 +1269,7 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname, + if (sk->sk_type != SOCK_STREAM) + return -ENOPROTOOPT; + +- msg.msg_control = optval; ++ msg.msg_control = (void __force_kernel *)optval; + msg.msg_controllen = len; + msg.msg_flags = flags; + +diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c +index 92ac7e7..13f93d9 100644 +--- a/net/ipv4/ipconfig.c ++++ b/net/ipv4/ipconfig.c +@@ -321,7 +321,7 @@ static int __init ic_devinet_ioctl(unsigned int cmd, struct ifreq *arg) + + mm_segment_t oldfs = get_fs(); + set_fs(get_ds()); +- res = devinet_ioctl(&init_net, cmd, (struct ifreq __user *) arg); ++ res = devinet_ioctl(&init_net, cmd, (struct ifreq __force_user *) arg); + set_fs(oldfs); + return res; + } +@@ -332,7 +332,7 @@ static int __init ic_dev_ioctl(unsigned int cmd, struct ifreq *arg) + + mm_segment_t oldfs = get_fs(); + set_fs(get_ds()); +- res = dev_ioctl(&init_net, cmd, (struct ifreq __user *) arg); ++ res = dev_ioctl(&init_net, cmd, (struct ifreq __force_user *) arg); + set_fs(oldfs); + return res; + } +@@ -343,7 +343,7 @@ static int __init ic_route_ioctl(unsigned int cmd, struct rtentry *arg) + + mm_segment_t oldfs = get_fs(); + set_fs(get_ds()); +- res = ip_rt_ioctl(&init_net, cmd, (void __user *) arg); ++ res = ip_rt_ioctl(&init_net, cmd, (void __force_user *) arg); + set_fs(oldfs); + return res; + } +diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c +index 50009c7..5996a9f 100644 +--- a/net/ipv4/ping.c ++++ b/net/ipv4/ping.c +@@ -838,7 +838,7 @@ static void ping_format_sock(struct sock *sp, struct seq_file *f, + sk_rmem_alloc_get(sp), + 0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp), + atomic_read(&sp->sk_refcnt), sp, +- atomic_read(&sp->sk_drops), len); ++ atomic_read_unchecked(&sp->sk_drops), len); + } + + static int ping_seq_show(struct seq_file *seq, void *v) +diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c +index bbd604c..4d5469c 100644 +--- a/net/ipv4/raw.c ++++ b/net/ipv4/raw.c +@@ -304,7 +304,7 @@ static int raw_rcv_skb(struct sock * sk, struct sk_buff * skb) + int raw_rcv(struct sock *sk, struct sk_buff *skb) + { + if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb)) { +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + kfree_skb(skb); + return NET_RX_DROP; + } +@@ -740,16 +740,20 @@ static int raw_init(struct sock *sk) + + static int raw_seticmpfilter(struct sock *sk, char __user *optval, int optlen) + { ++ struct icmp_filter filter; ++ + if (optlen > sizeof(struct icmp_filter)) + optlen = sizeof(struct icmp_filter); +- if (copy_from_user(&raw_sk(sk)->filter, optval, optlen)) ++ if (copy_from_user(&filter, optval, optlen)) + return -EFAULT; ++ raw_sk(sk)->filter = filter; + return 0; + } + + static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *optlen) + { + int len, ret = -EFAULT; ++ struct icmp_filter filter; + + if (get_user(len, optlen)) + goto out; +@@ -759,8 +763,8 @@ static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *o + if (len > sizeof(struct icmp_filter)) + len = sizeof(struct icmp_filter); + ret = -EFAULT; +- if (put_user(len, optlen) || +- copy_to_user(optval, &raw_sk(sk)->filter, len)) ++ filter = raw_sk(sk)->filter; ++ if (put_user(len, optlen) || len > sizeof filter || copy_to_user(optval, &filter, len)) + goto out; + ret = 0; + out: return ret; +@@ -988,7 +992,13 @@ static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i) + sk_wmem_alloc_get(sp), + sk_rmem_alloc_get(sp), + 0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp), +- atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops)); ++ atomic_read(&sp->sk_refcnt), ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ NULL, ++#else ++ sp, ++#endif ++ atomic_read_unchecked(&sp->sk_drops)); + } + + static int raw_seq_show(struct seq_file *seq, void *v) +diff --git a/net/ipv4/route.c b/net/ipv4/route.c +index 167ea10..4b15883 100644 +--- a/net/ipv4/route.c ++++ b/net/ipv4/route.c +@@ -312,7 +312,7 @@ static inline unsigned int rt_hash(__be32 daddr, __be32 saddr, int idx, + + static inline int rt_genid(struct net *net) + { +- return atomic_read(&net->ipv4.rt_genid); ++ return atomic_read_unchecked(&net->ipv4.rt_genid); + } + + #ifdef CONFIG_PROC_FS +@@ -936,7 +936,7 @@ static void rt_cache_invalidate(struct net *net) + unsigned char shuffle; + + get_random_bytes(&shuffle, sizeof(shuffle)); +- atomic_add(shuffle + 1U, &net->ipv4.rt_genid); ++ atomic_add_unchecked(shuffle + 1U, &net->ipv4.rt_genid); + inetpeer_invalidate_tree(AF_INET); + } + +@@ -3009,7 +3009,7 @@ static int rt_fill_info(struct net *net, + error = rt->dst.error; + if (peer) { + inet_peer_refcheck(rt->peer); +- id = atomic_read(&peer->ip_id_count) & 0xffff; ++ id = atomic_read_unchecked(&peer->ip_id_count) & 0xffff; + if (peer->tcp_ts_stamp) { + ts = peer->tcp_ts; + tsage = get_seconds() - peer->tcp_ts_stamp; +diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c +index 0cb86ce..8e7fda8 100644 +--- a/net/ipv4/tcp_ipv4.c ++++ b/net/ipv4/tcp_ipv4.c +@@ -90,6 +90,10 @@ int sysctl_tcp_low_latency __read_mostly; + EXPORT_SYMBOL(sysctl_tcp_low_latency); + + ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++extern int grsec_enable_blackhole; ++#endif ++ + #ifdef CONFIG_TCP_MD5SIG + static int tcp_v4_md5_hash_hdr(char *md5_hash, const struct tcp_md5sig_key *key, + __be32 daddr, __be32 saddr, const struct tcphdr *th); +@@ -1641,6 +1645,9 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb) + return 0; + + reset: ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++ if (!grsec_enable_blackhole) ++#endif + tcp_v4_send_reset(rsk, skb); + discard: + kfree_skb(skb); +@@ -1703,12 +1710,19 @@ int tcp_v4_rcv(struct sk_buff *skb) + TCP_SKB_CB(skb)->sacked = 0; + + sk = __inet_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest); +- if (!sk) ++ if (!sk) { ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++ ret = 1; ++#endif + goto no_tcp_socket; +- ++ } + process: +- if (sk->sk_state == TCP_TIME_WAIT) ++ if (sk->sk_state == TCP_TIME_WAIT) { ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++ ret = 2; ++#endif + goto do_time_wait; ++ } + + if (unlikely(iph->ttl < inet_sk(sk)->min_ttl)) { + NET_INC_STATS_BH(net, LINUX_MIB_TCPMINTTLDROP); +@@ -1758,6 +1772,10 @@ no_tcp_socket: + bad_packet: + TCP_INC_STATS_BH(net, TCP_MIB_INERRS); + } else { ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++ if (!grsec_enable_blackhole || (ret == 1 && ++ (skb->dev->flags & IFF_LOOPBACK))) ++#endif + tcp_v4_send_reset(NULL, skb); + } + +@@ -2419,7 +2437,11 @@ static void get_openreq4(const struct sock *sk, const struct request_sock *req, + 0, /* non standard timer */ + 0, /* open_requests have no inode */ + atomic_read(&sk->sk_refcnt), ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ NULL, ++#else + req, ++#endif + len); + } + +@@ -2469,7 +2491,12 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i, int *len) + sock_i_uid(sk), + icsk->icsk_probes_out, + sock_i_ino(sk), +- atomic_read(&sk->sk_refcnt), sk, ++ atomic_read(&sk->sk_refcnt), ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ NULL, ++#else ++ sk, ++#endif + jiffies_to_clock_t(icsk->icsk_rto), + jiffies_to_clock_t(icsk->icsk_ack.ato), + (icsk->icsk_ack.quick << 1) | icsk->icsk_ack.pingpong, +@@ -2497,7 +2524,13 @@ static void get_timewait4_sock(const struct inet_timewait_sock *tw, + " %02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %pK%n", + i, src, srcp, dest, destp, tw->tw_substate, 0, 0, + 3, jiffies_to_clock_t(ttd), 0, 0, 0, 0, +- atomic_read(&tw->tw_refcnt), tw, len); ++ atomic_read(&tw->tw_refcnt), ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ NULL, ++#else ++ tw, ++#endif ++ len); + } + + #define TMPSZ 150 +diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c +index 3cabafb..640525b 100644 +--- a/net/ipv4/tcp_minisocks.c ++++ b/net/ipv4/tcp_minisocks.c +@@ -27,6 +27,10 @@ + #include <net/inet_common.h> + #include <net/xfrm.h> + ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++extern int grsec_enable_blackhole; ++#endif ++ + int sysctl_tcp_syncookies __read_mostly = 1; + EXPORT_SYMBOL(sysctl_tcp_syncookies); + +@@ -753,6 +757,10 @@ listen_overflow: + + embryonic_reset: + NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_EMBRYONICRSTS); ++ ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++ if (!grsec_enable_blackhole) ++#endif + if (!(flg & TCP_FLAG_RST)) + req->rsk_ops->send_reset(sk, skb); + +diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c +index a981cdc..48f4c3a 100644 +--- a/net/ipv4/tcp_probe.c ++++ b/net/ipv4/tcp_probe.c +@@ -204,7 +204,7 @@ static ssize_t tcpprobe_read(struct file *file, char __user *buf, + if (cnt + width >= len) + break; + +- if (copy_to_user(buf + cnt, tbuf, width)) ++ if (width > sizeof tbuf || copy_to_user(buf + cnt, tbuf, width)) + return -EFAULT; + cnt += width; + } +diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c +index 34d4a02..3b57f86 100644 +--- a/net/ipv4/tcp_timer.c ++++ b/net/ipv4/tcp_timer.c +@@ -22,6 +22,10 @@ + #include <linux/gfp.h> + #include <net/tcp.h> + ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++extern int grsec_lastack_retries; ++#endif ++ + int sysctl_tcp_syn_retries __read_mostly = TCP_SYN_RETRIES; + int sysctl_tcp_synack_retries __read_mostly = TCP_SYNACK_RETRIES; + int sysctl_tcp_keepalive_time __read_mostly = TCP_KEEPALIVE_TIME; +@@ -196,6 +200,13 @@ static int tcp_write_timeout(struct sock *sk) + } + } + ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++ if ((sk->sk_state == TCP_LAST_ACK) && ++ (grsec_lastack_retries > 0) && ++ (grsec_lastack_retries < retry_until)) ++ retry_until = grsec_lastack_retries; ++#endif ++ + if (retransmits_timed_out(sk, retry_until, + syn_set ? 0 : icsk->icsk_user_timeout, syn_set)) { + /* Has it gone just too far? */ +diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c +index fe14105..0618260 100644 +--- a/net/ipv4/udp.c ++++ b/net/ipv4/udp.c +@@ -87,6 +87,7 @@ + #include <linux/types.h> + #include <linux/fcntl.h> + #include <linux/module.h> ++#include <linux/security.h> + #include <linux/socket.h> + #include <linux/sockios.h> + #include <linux/igmp.h> +@@ -109,6 +110,10 @@ + #include <trace/events/udp.h> + #include "udp_impl.h" + ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++extern int grsec_enable_blackhole; ++#endif ++ + struct udp_table udp_table __read_mostly; + EXPORT_SYMBOL(udp_table); + +@@ -567,6 +572,9 @@ found: + return s; + } + ++extern int gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb); ++extern int gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr); ++ + /* + * This routine is called by the ICMP module when it gets some + * sort of error condition. If err < 0 then the socket should +@@ -858,9 +866,18 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, + dport = usin->sin_port; + if (dport == 0) + return -EINVAL; ++ ++ err = gr_search_udp_sendmsg(sk, usin); ++ if (err) ++ return err; + } else { + if (sk->sk_state != TCP_ESTABLISHED) + return -EDESTADDRREQ; ++ ++ err = gr_search_udp_sendmsg(sk, NULL); ++ if (err) ++ return err; ++ + daddr = inet->inet_daddr; + dport = inet->inet_dport; + /* Open fast path for connected socket. +@@ -1102,7 +1119,7 @@ static unsigned int first_packet_length(struct sock *sk) + udp_lib_checksum_complete(skb)) { + UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, + IS_UDPLITE(sk)); +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + __skb_unlink(skb, rcvq); + __skb_queue_tail(&list_kill, skb); + } +@@ -1188,6 +1205,10 @@ try_again: + if (!skb) + goto out; + ++ err = gr_search_udp_recvmsg(sk, skb); ++ if (err) ++ goto out_free; ++ + ulen = skb->len - sizeof(struct udphdr); + copied = len; + if (copied > ulen) +@@ -1489,7 +1510,7 @@ int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) + + drop: + UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite); +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + kfree_skb(skb); + return -1; + } +@@ -1508,7 +1529,7 @@ static void flush_stack(struct sock **stack, unsigned int count, + skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC); + + if (!skb1) { +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS, + IS_UDPLITE(sk)); + UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, +@@ -1677,6 +1698,9 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable, + goto csum_error; + + UDP_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE); ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++ if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK)) ++#endif + icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0); + + /* +@@ -2094,8 +2118,13 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f, + sk_wmem_alloc_get(sp), + sk_rmem_alloc_get(sp), + 0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp), +- atomic_read(&sp->sk_refcnt), sp, +- atomic_read(&sp->sk_drops), len); ++ atomic_read(&sp->sk_refcnt), ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ NULL, ++#else ++ sp, ++#endif ++ atomic_read_unchecked(&sp->sk_drops), len); + } + + int udp4_seq_show(struct seq_file *seq, void *v) +diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c +index 7d5cb97..c56564f 100644 +--- a/net/ipv6/addrconf.c ++++ b/net/ipv6/addrconf.c +@@ -2142,7 +2142,7 @@ int addrconf_set_dstaddr(struct net *net, void __user *arg) + p.iph.ihl = 5; + p.iph.protocol = IPPROTO_IPV6; + p.iph.ttl = 64; +- ifr.ifr_ifru.ifru_data = (__force void __user *)&p; ++ ifr.ifr_ifru.ifru_data = (void __force_user *)&p; + + if (ops->ndo_do_ioctl) { + mm_segment_t oldfs = get_fs(); +diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c +index 02dd203..e03fcc9 100644 +--- a/net/ipv6/inet6_connection_sock.c ++++ b/net/ipv6/inet6_connection_sock.c +@@ -178,7 +178,7 @@ void __inet6_csk_dst_store(struct sock *sk, struct dst_entry *dst, + #ifdef CONFIG_XFRM + { + struct rt6_info *rt = (struct rt6_info *)dst; +- rt->rt6i_flow_cache_genid = atomic_read(&flow_cache_genid); ++ rt->rt6i_flow_cache_genid = atomic_read_unchecked(&flow_cache_genid); + } + #endif + } +@@ -193,7 +193,7 @@ struct dst_entry *__inet6_csk_dst_check(struct sock *sk, u32 cookie) + #ifdef CONFIG_XFRM + if (dst) { + struct rt6_info *rt = (struct rt6_info *)dst; +- if (rt->rt6i_flow_cache_genid != atomic_read(&flow_cache_genid)) { ++ if (rt->rt6i_flow_cache_genid != atomic_read_unchecked(&flow_cache_genid)) { + __sk_dst_reset(sk); + dst = NULL; + } +diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c +index 63dd1f8..e7f53ca 100644 +--- a/net/ipv6/ipv6_sockglue.c ++++ b/net/ipv6/ipv6_sockglue.c +@@ -990,7 +990,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname, + if (sk->sk_type != SOCK_STREAM) + return -ENOPROTOOPT; + +- msg.msg_control = optval; ++ msg.msg_control = (void __force_kernel *)optval; + msg.msg_controllen = len; + msg.msg_flags = flags; + +diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c +index 5bddea7..82d9d67 100644 +--- a/net/ipv6/raw.c ++++ b/net/ipv6/raw.c +@@ -377,7 +377,7 @@ static inline int rawv6_rcv_skb(struct sock *sk, struct sk_buff *skb) + { + if ((raw6_sk(sk)->checksum || rcu_access_pointer(sk->sk_filter)) && + skb_checksum_complete(skb)) { +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + kfree_skb(skb); + return NET_RX_DROP; + } +@@ -405,7 +405,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb) + struct raw6_sock *rp = raw6_sk(sk); + + if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) { +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + kfree_skb(skb); + return NET_RX_DROP; + } +@@ -429,7 +429,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb) + + if (inet->hdrincl) { + if (skb_checksum_complete(skb)) { +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + kfree_skb(skb); + return NET_RX_DROP; + } +@@ -602,7 +602,7 @@ out: + return err; + } + +-static int rawv6_send_hdrinc(struct sock *sk, void *from, int length, ++static int rawv6_send_hdrinc(struct sock *sk, void *from, unsigned int length, + struct flowi6 *fl6, struct dst_entry **dstp, + unsigned int flags) + { +@@ -914,12 +914,15 @@ do_confirm: + static int rawv6_seticmpfilter(struct sock *sk, int level, int optname, + char __user *optval, int optlen) + { ++ struct icmp6_filter filter; ++ + switch (optname) { + case ICMPV6_FILTER: + if (optlen > sizeof(struct icmp6_filter)) + optlen = sizeof(struct icmp6_filter); +- if (copy_from_user(&raw6_sk(sk)->filter, optval, optlen)) ++ if (copy_from_user(&filter, optval, optlen)) + return -EFAULT; ++ raw6_sk(sk)->filter = filter; + return 0; + default: + return -ENOPROTOOPT; +@@ -932,6 +935,7 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname, + char __user *optval, int __user *optlen) + { + int len; ++ struct icmp6_filter filter; + + switch (optname) { + case ICMPV6_FILTER: +@@ -943,7 +947,8 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname, + len = sizeof(struct icmp6_filter); + if (put_user(len, optlen)) + return -EFAULT; +- if (copy_to_user(optval, &raw6_sk(sk)->filter, len)) ++ filter = raw6_sk(sk)->filter; ++ if (len > sizeof filter || copy_to_user(optval, &filter, len)) + return -EFAULT; + return 0; + default: +@@ -1250,7 +1255,13 @@ static void raw6_sock_seq_show(struct seq_file *seq, struct sock *sp, int i) + 0, 0L, 0, + sock_i_uid(sp), 0, + sock_i_ino(sp), +- atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops)); ++ atomic_read(&sp->sk_refcnt), ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ NULL, ++#else ++ sp, ++#endif ++ atomic_read_unchecked(&sp->sk_drops)); + } + + static int raw6_seq_show(struct seq_file *seq, void *v) +diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c +index 98256cf..7f16dbd 100644 +--- a/net/ipv6/tcp_ipv6.c ++++ b/net/ipv6/tcp_ipv6.c +@@ -94,6 +94,10 @@ static struct tcp_md5sig_key *tcp_v6_md5_do_lookup(struct sock *sk, + } + #endif + ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++extern int grsec_enable_blackhole; ++#endif ++ + static void tcp_v6_hash(struct sock *sk) + { + if (sk->sk_state != TCP_CLOSE) { +@@ -1542,6 +1546,9 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb) + return 0; + + reset: ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++ if (!grsec_enable_blackhole) ++#endif + tcp_v6_send_reset(sk, skb); + discard: + if (opt_skb) +@@ -1623,12 +1630,20 @@ static int tcp_v6_rcv(struct sk_buff *skb) + TCP_SKB_CB(skb)->sacked = 0; + + sk = __inet6_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest); +- if (!sk) ++ if (!sk) { ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++ ret = 1; ++#endif + goto no_tcp_socket; ++ } + + process: +- if (sk->sk_state == TCP_TIME_WAIT) ++ if (sk->sk_state == TCP_TIME_WAIT) { ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++ ret = 2; ++#endif + goto do_time_wait; ++ } + + if (hdr->hop_limit < inet6_sk(sk)->min_hopcount) { + NET_INC_STATS_BH(net, LINUX_MIB_TCPMINTTLDROP); +@@ -1676,6 +1691,10 @@ no_tcp_socket: + bad_packet: + TCP_INC_STATS_BH(net, TCP_MIB_INERRS); + } else { ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++ if (!grsec_enable_blackhole || (ret == 1 && ++ (skb->dev->flags & IFF_LOOPBACK))) ++#endif + tcp_v6_send_reset(NULL, skb); + } + +@@ -1930,7 +1949,13 @@ static void get_openreq6(struct seq_file *seq, + uid, + 0, /* non standard timer */ + 0, /* open_requests have no inode */ +- 0, req); ++ 0, ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ NULL ++#else ++ req ++#endif ++ ); + } + + static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i) +@@ -1980,7 +2005,12 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i) + sock_i_uid(sp), + icsk->icsk_probes_out, + sock_i_ino(sp), +- atomic_read(&sp->sk_refcnt), sp, ++ atomic_read(&sp->sk_refcnt), ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ NULL, ++#else ++ sp, ++#endif + jiffies_to_clock_t(icsk->icsk_rto), + jiffies_to_clock_t(icsk->icsk_ack.ato), + (icsk->icsk_ack.quick << 1 ) | icsk->icsk_ack.pingpong, +@@ -2015,7 +2045,13 @@ static void get_timewait6_sock(struct seq_file *seq, + dest->s6_addr32[2], dest->s6_addr32[3], destp, + tw->tw_substate, 0, 0, + 3, jiffies_to_clock_t(ttd), 0, 0, 0, 0, +- atomic_read(&tw->tw_refcnt), tw); ++ atomic_read(&tw->tw_refcnt), ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ NULL ++#else ++ tw ++#endif ++ ); + } + + static int tcp6_seq_show(struct seq_file *seq, void *v) +diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c +index 37b0699..d323408 100644 +--- a/net/ipv6/udp.c ++++ b/net/ipv6/udp.c +@@ -50,6 +50,10 @@ + #include <linux/seq_file.h> + #include "udp_impl.h" + ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++extern int grsec_enable_blackhole; ++#endif ++ + int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2) + { + const struct in6_addr *sk_rcv_saddr6 = &inet6_sk(sk)->rcv_saddr; +@@ -551,7 +555,7 @@ int udpv6_queue_rcv_skb(struct sock * sk, struct sk_buff *skb) + + return 0; + drop: +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + drop_no_sk_drops_inc: + UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite); + kfree_skb(skb); +@@ -627,7 +631,7 @@ static void flush_stack(struct sock **stack, unsigned int count, + continue; + } + drop: +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + UDP6_INC_STATS_BH(sock_net(sk), + UDP_MIB_RCVBUFERRORS, IS_UDPLITE(sk)); + UDP6_INC_STATS_BH(sock_net(sk), +@@ -782,6 +786,9 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable, + UDP6_INC_STATS_BH(net, UDP_MIB_NOPORTS, + proto == IPPROTO_UDPLITE); + ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++ if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK)) ++#endif + icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0); + + kfree_skb(skb); +@@ -798,7 +805,7 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable, + if (!sock_owned_by_user(sk)) + udpv6_queue_rcv_skb(sk, skb); + else if (sk_add_backlog(sk, skb)) { +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + bh_unlock_sock(sk); + sock_put(sk); + goto discard; +@@ -1411,8 +1418,13 @@ static void udp6_sock_seq_show(struct seq_file *seq, struct sock *sp, int bucket + 0, 0L, 0, + sock_i_uid(sp), 0, + sock_i_ino(sp), +- atomic_read(&sp->sk_refcnt), sp, +- atomic_read(&sp->sk_drops)); ++ atomic_read(&sp->sk_refcnt), ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ NULL, ++#else ++ sp, ++#endif ++ atomic_read_unchecked(&sp->sk_drops)); + } + + int udp6_seq_show(struct seq_file *seq, void *v) +diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c +index 6b9d5a0..4dffaf1 100644 +--- a/net/irda/ircomm/ircomm_tty.c ++++ b/net/irda/ircomm/ircomm_tty.c +@@ -281,16 +281,16 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self, + add_wait_queue(&self->open_wait, &wait); + + IRDA_DEBUG(2, "%s(%d):block_til_ready before block on %s open_count=%d\n", +- __FILE__,__LINE__, tty->driver->name, self->open_count ); ++ __FILE__,__LINE__, tty->driver->name, local_read(&self->open_count) ); + + /* As far as I can see, we protect open_count - Jean II */ + spin_lock_irqsave(&self->spinlock, flags); + if (!tty_hung_up_p(filp)) { + extra_count = 1; +- self->open_count--; ++ local_dec(&self->open_count); + } + spin_unlock_irqrestore(&self->spinlock, flags); +- self->blocked_open++; ++ local_inc(&self->blocked_open); + + while (1) { + if (tty->termios->c_cflag & CBAUD) { +@@ -330,7 +330,7 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self, + } + + IRDA_DEBUG(1, "%s(%d):block_til_ready blocking on %s open_count=%d\n", +- __FILE__,__LINE__, tty->driver->name, self->open_count ); ++ __FILE__,__LINE__, tty->driver->name, local_read(&self->open_count) ); + + schedule(); + } +@@ -341,13 +341,13 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self, + if (extra_count) { + /* ++ is not atomic, so this should be protected - Jean II */ + spin_lock_irqsave(&self->spinlock, flags); +- self->open_count++; ++ local_inc(&self->open_count); + spin_unlock_irqrestore(&self->spinlock, flags); + } +- self->blocked_open--; ++ local_dec(&self->blocked_open); + + IRDA_DEBUG(1, "%s(%d):block_til_ready after blocking on %s open_count=%d\n", +- __FILE__,__LINE__, tty->driver->name, self->open_count); ++ __FILE__,__LINE__, tty->driver->name, local_read(&self->open_count)); + + if (!retval) + self->flags |= ASYNC_NORMAL_ACTIVE; +@@ -412,14 +412,14 @@ static int ircomm_tty_open(struct tty_struct *tty, struct file *filp) + } + /* ++ is not atomic, so this should be protected - Jean II */ + spin_lock_irqsave(&self->spinlock, flags); +- self->open_count++; ++ local_inc(&self->open_count); + + tty->driver_data = self; + self->tty = tty; + spin_unlock_irqrestore(&self->spinlock, flags); + + IRDA_DEBUG(1, "%s(), %s%d, count = %d\n", __func__ , tty->driver->name, +- self->line, self->open_count); ++ self->line, local_read(&self->open_count)); + + /* Not really used by us, but lets do it anyway */ + self->tty->low_latency = (self->flags & ASYNC_LOW_LATENCY) ? 1 : 0; +@@ -505,7 +505,7 @@ static void ircomm_tty_close(struct tty_struct *tty, struct file *filp) + return; + } + +- if ((tty->count == 1) && (self->open_count != 1)) { ++ if ((tty->count == 1) && (local_read(&self->open_count) != 1)) { + /* + * Uh, oh. tty->count is 1, which means that the tty + * structure will be freed. state->count should always +@@ -515,16 +515,16 @@ static void ircomm_tty_close(struct tty_struct *tty, struct file *filp) + */ + IRDA_DEBUG(0, "%s(), bad serial port count; " + "tty->count is 1, state->count is %d\n", __func__ , +- self->open_count); +- self->open_count = 1; ++ local_read(&self->open_count)); ++ local_set(&self->open_count, 1); + } + +- if (--self->open_count < 0) { ++ if (local_dec_return(&self->open_count) < 0) { + IRDA_ERROR("%s(), bad serial port count for ttys%d: %d\n", +- __func__, self->line, self->open_count); +- self->open_count = 0; ++ __func__, self->line, local_read(&self->open_count)); ++ local_set(&self->open_count, 0); + } +- if (self->open_count) { ++ if (local_read(&self->open_count)) { + spin_unlock_irqrestore(&self->spinlock, flags); + + IRDA_DEBUG(0, "%s(), open count > 0\n", __func__ ); +@@ -556,7 +556,7 @@ static void ircomm_tty_close(struct tty_struct *tty, struct file *filp) + tty->closing = 0; + self->tty = NULL; + +- if (self->blocked_open) { ++ if (local_read(&self->blocked_open)) { + if (self->close_delay) + schedule_timeout_interruptible(self->close_delay); + wake_up_interruptible(&self->open_wait); +@@ -1008,7 +1008,7 @@ static void ircomm_tty_hangup(struct tty_struct *tty) + spin_lock_irqsave(&self->spinlock, flags); + self->flags &= ~ASYNC_NORMAL_ACTIVE; + self->tty = NULL; +- self->open_count = 0; ++ local_set(&self->open_count, 0); + spin_unlock_irqrestore(&self->spinlock, flags); + + wake_up_interruptible(&self->open_wait); +@@ -1355,7 +1355,7 @@ static void ircomm_tty_line_info(struct ircomm_tty_cb *self, struct seq_file *m) + seq_putc(m, '\n'); + + seq_printf(m, "Role: %s\n", self->client ? "client" : "server"); +- seq_printf(m, "Open count: %d\n", self->open_count); ++ seq_printf(m, "Open count: %d\n", local_read(&self->open_count)); + seq_printf(m, "Max data size: %d\n", self->max_data_size); + seq_printf(m, "Max header size: %d\n", self->max_header_size); + +diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c +index cd6f7a9..e63fe89 100644 +--- a/net/iucv/af_iucv.c ++++ b/net/iucv/af_iucv.c +@@ -782,10 +782,10 @@ static int iucv_sock_autobind(struct sock *sk) + + write_lock_bh(&iucv_sk_list.lock); + +- sprintf(name, "%08x", atomic_inc_return(&iucv_sk_list.autobind_name)); ++ sprintf(name, "%08x", atomic_inc_return_unchecked(&iucv_sk_list.autobind_name)); + while (__iucv_get_sock_by_name(name)) { + sprintf(name, "%08x", +- atomic_inc_return(&iucv_sk_list.autobind_name)); ++ atomic_inc_return_unchecked(&iucv_sk_list.autobind_name)); + } + + write_unlock_bh(&iucv_sk_list.lock); +diff --git a/net/key/af_key.c b/net/key/af_key.c +index 7e5d927..cdbb54e 100644 +--- a/net/key/af_key.c ++++ b/net/key/af_key.c +@@ -3016,10 +3016,10 @@ static int pfkey_send_policy_notify(struct xfrm_policy *xp, int dir, const struc + static u32 get_acqseq(void) + { + u32 res; +- static atomic_t acqseq; ++ static atomic_unchecked_t acqseq; + + do { +- res = atomic_inc_return(&acqseq); ++ res = atomic_inc_return_unchecked(&acqseq); + } while (!res); + return res; + } +diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h +index db8fae5..ff070cd 100644 +--- a/net/mac80211/ieee80211_i.h ++++ b/net/mac80211/ieee80211_i.h +@@ -28,6 +28,7 @@ + #include <net/ieee80211_radiotap.h> + #include <net/cfg80211.h> + #include <net/mac80211.h> ++#include <asm/local.h> + #include "key.h" + #include "sta_info.h" + +@@ -842,7 +843,7 @@ struct ieee80211_local { + /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */ + spinlock_t queue_stop_reason_lock; + +- int open_count; ++ local_t open_count; + int monitors, cooked_mntrs; + /* number of interfaces with corresponding FIF_ flags */ + int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll, +diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c +index 48f937e..4ccd7b8 100644 +--- a/net/mac80211/iface.c ++++ b/net/mac80211/iface.c +@@ -222,7 +222,7 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up) + break; + } + +- if (local->open_count == 0) { ++ if (local_read(&local->open_count) == 0) { + res = drv_start(local); + if (res) + goto err_del_bss; +@@ -246,7 +246,7 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up) + memcpy(dev->perm_addr, dev->dev_addr, ETH_ALEN); + + if (!is_valid_ether_addr(dev->dev_addr)) { +- if (!local->open_count) ++ if (!local_read(&local->open_count)) + drv_stop(local); + return -EADDRNOTAVAIL; + } +@@ -347,7 +347,7 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up) + mutex_unlock(&local->mtx); + + if (coming_up) +- local->open_count++; ++ local_inc(&local->open_count); + + if (hw_reconf_flags) + ieee80211_hw_config(local, hw_reconf_flags); +@@ -360,7 +360,7 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up) + err_del_interface: + drv_remove_interface(local, sdata); + err_stop: +- if (!local->open_count) ++ if (!local_read(&local->open_count)) + drv_stop(local); + err_del_bss: + sdata->bss = NULL; +@@ -491,7 +491,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, + } + + if (going_down) +- local->open_count--; ++ local_dec(&local->open_count); + + switch (sdata->vif.type) { + case NL80211_IFTYPE_AP_VLAN: +@@ -562,7 +562,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, + + ieee80211_recalc_ps(local, -1); + +- if (local->open_count == 0) { ++ if (local_read(&local->open_count) == 0) { + if (local->ops->napi_poll) + napi_disable(&local->napi); + ieee80211_clear_tx_pending(local); +diff --git a/net/mac80211/main.c b/net/mac80211/main.c +index 1633648..d45ebfa 100644 +--- a/net/mac80211/main.c ++++ b/net/mac80211/main.c +@@ -164,7 +164,7 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) + local->hw.conf.power_level = power; + } + +- if (changed && local->open_count) { ++ if (changed && local_read(&local->open_count)) { + ret = drv_config(local, changed); + /* + * Goal: +diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c +index ef8eba1..5c63952 100644 +--- a/net/mac80211/pm.c ++++ b/net/mac80211/pm.c +@@ -34,7 +34,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) + struct ieee80211_sub_if_data *sdata; + struct sta_info *sta; + +- if (!local->open_count) ++ if (!local_read(&local->open_count)) + goto suspend; + + ieee80211_scan_cancel(local); +@@ -72,7 +72,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) + cancel_work_sync(&local->dynamic_ps_enable_work); + del_timer_sync(&local->dynamic_ps_timer); + +- local->wowlan = wowlan && local->open_count; ++ local->wowlan = wowlan && local_read(&local->open_count); + if (local->wowlan) { + int err = drv_suspend(local, wowlan); + if (err < 0) { +@@ -128,7 +128,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) + } + + /* stop hardware - this must stop RX */ +- if (local->open_count) ++ if (local_read(&local->open_count)) + ieee80211_stop_device(local); + + suspend: +diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c +index 3313c11..bec9f17 100644 +--- a/net/mac80211/rate.c ++++ b/net/mac80211/rate.c +@@ -494,7 +494,7 @@ int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local, + + ASSERT_RTNL(); + +- if (local->open_count) ++ if (local_read(&local->open_count)) + return -EBUSY; + + if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) { +diff --git a/net/mac80211/rc80211_pid_debugfs.c b/net/mac80211/rc80211_pid_debugfs.c +index c97a065..ff61928 100644 +--- a/net/mac80211/rc80211_pid_debugfs.c ++++ b/net/mac80211/rc80211_pid_debugfs.c +@@ -193,7 +193,7 @@ static ssize_t rate_control_pid_events_read(struct file *file, char __user *buf, + + spin_unlock_irqrestore(&events->lock, status); + +- if (copy_to_user(buf, pb, p)) ++ if (p > sizeof(pb) || copy_to_user(buf, pb, p)) + return -EFAULT; + + return p; +diff --git a/net/mac80211/util.c b/net/mac80211/util.c +index eb9d7c0..d34b832 100644 +--- a/net/mac80211/util.c ++++ b/net/mac80211/util.c +@@ -1179,7 +1179,7 @@ int ieee80211_reconfig(struct ieee80211_local *local) + } + #endif + /* everything else happens only if HW was up & running */ +- if (!local->open_count) ++ if (!local_read(&local->open_count)) + goto wake_up; + + /* +diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig +index 0c6f67e..d02cdfc 100644 +--- a/net/netfilter/Kconfig ++++ b/net/netfilter/Kconfig +@@ -836,6 +836,16 @@ config NETFILTER_XT_MATCH_ESP + + To compile it as a module, choose M here. If unsure, say N. + ++config NETFILTER_XT_MATCH_GRADM ++ tristate '"gradm" match support' ++ depends on NETFILTER_XTABLES && NETFILTER_ADVANCED ++ depends on GRKERNSEC && !GRKERNSEC_NO_RBAC ++ ---help--- ++ The gradm match allows to match on grsecurity RBAC being enabled. ++ It is useful when iptables rules are applied early on bootup to ++ prevent connections to the machine (except from a trusted host) ++ while the RBAC system is disabled. ++ + config NETFILTER_XT_MATCH_HASHLIMIT + tristate '"hashlimit" match support' + depends on (IP6_NF_IPTABLES || IP6_NF_IPTABLES=n) +diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile +index ca36765..0882e7c 100644 +--- a/net/netfilter/Makefile ++++ b/net/netfilter/Makefile +@@ -86,6 +86,7 @@ obj-$(CONFIG_NETFILTER_XT_MATCH_DEVGROUP) += xt_devgroup.o + obj-$(CONFIG_NETFILTER_XT_MATCH_DSCP) += xt_dscp.o + obj-$(CONFIG_NETFILTER_XT_MATCH_ECN) += xt_ecn.o + obj-$(CONFIG_NETFILTER_XT_MATCH_ESP) += xt_esp.o ++obj-$(CONFIG_NETFILTER_XT_MATCH_GRADM) += xt_gradm.o + obj-$(CONFIG_NETFILTER_XT_MATCH_HASHLIMIT) += xt_hashlimit.o + obj-$(CONFIG_NETFILTER_XT_MATCH_HELPER) += xt_helper.o + obj-$(CONFIG_NETFILTER_XT_MATCH_HL) += xt_hl.o +diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c +index 29fa5ba..8debc79 100644 +--- a/net/netfilter/ipvs/ip_vs_conn.c ++++ b/net/netfilter/ipvs/ip_vs_conn.c +@@ -556,7 +556,7 @@ ip_vs_bind_dest(struct ip_vs_conn *cp, struct ip_vs_dest *dest) + /* Increase the refcnt counter of the dest */ + atomic_inc(&dest->refcnt); + +- conn_flags = atomic_read(&dest->conn_flags); ++ conn_flags = atomic_read_unchecked(&dest->conn_flags); + if (cp->protocol != IPPROTO_UDP) + conn_flags &= ~IP_VS_CONN_F_ONE_PACKET; + /* Bind with the destination and its corresponding transmitter */ +@@ -869,7 +869,7 @@ ip_vs_conn_new(const struct ip_vs_conn_param *p, + atomic_set(&cp->refcnt, 1); + + atomic_set(&cp->n_control, 0); +- atomic_set(&cp->in_pkts, 0); ++ atomic_set_unchecked(&cp->in_pkts, 0); + + atomic_inc(&ipvs->conn_count); + if (flags & IP_VS_CONN_F_NO_CPORT) +@@ -1149,7 +1149,7 @@ static inline int todrop_entry(struct ip_vs_conn *cp) + + /* Don't drop the entry if its number of incoming packets is not + located in [0, 8] */ +- i = atomic_read(&cp->in_pkts); ++ i = atomic_read_unchecked(&cp->in_pkts); + if (i > 8 || i < 0) return 0; + + if (!todrop_rate[i]) return 0; +diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c +index 00bdb1d..6725a48 100644 +--- a/net/netfilter/ipvs/ip_vs_core.c ++++ b/net/netfilter/ipvs/ip_vs_core.c +@@ -562,7 +562,7 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb, + ret = cp->packet_xmit(skb, cp, pd->pp); + /* do not touch skb anymore */ + +- atomic_inc(&cp->in_pkts); ++ atomic_inc_unchecked(&cp->in_pkts); + ip_vs_conn_put(cp); + return ret; + } +@@ -1611,7 +1611,7 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af) + if (cp->flags & IP_VS_CONN_F_ONE_PACKET) + pkts = sysctl_sync_threshold(ipvs); + else +- pkts = atomic_add_return(1, &cp->in_pkts); ++ pkts = atomic_add_return_unchecked(1, &cp->in_pkts); + + if ((ipvs->sync_state & IP_VS_STATE_MASTER) && + cp->protocol == IPPROTO_SCTP) { +diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c +index f558998..7dfb054 100644 +--- a/net/netfilter/ipvs/ip_vs_ctl.c ++++ b/net/netfilter/ipvs/ip_vs_ctl.c +@@ -788,7 +788,7 @@ __ip_vs_update_dest(struct ip_vs_service *svc, struct ip_vs_dest *dest, + ip_vs_rs_hash(ipvs, dest); + write_unlock_bh(&ipvs->rs_lock); + } +- atomic_set(&dest->conn_flags, conn_flags); ++ atomic_set_unchecked(&dest->conn_flags, conn_flags); + + /* bind the service */ + if (!dest->svc) { +@@ -1521,11 +1521,12 @@ static int ip_vs_dst_event(struct notifier_block *this, unsigned long event, + { + struct net_device *dev = ptr; + struct net *net = dev_net(dev); ++ struct netns_ipvs *ipvs = net_ipvs(net); + struct ip_vs_service *svc; + struct ip_vs_dest *dest; + unsigned int idx; + +- if (event != NETDEV_UNREGISTER) ++ if (event != NETDEV_UNREGISTER || !ipvs) + return NOTIFY_DONE; + IP_VS_DBG(3, "%s() dev=%s\n", __func__, dev->name); + EnterFunction(2); +@@ -1551,7 +1552,7 @@ static int ip_vs_dst_event(struct notifier_block *this, unsigned long event, + } + } + +- list_for_each_entry(dest, &net_ipvs(net)->dest_trash, n_list) { ++ list_for_each_entry(dest, &ipvs->dest_trash, n_list) { + __ip_vs_dev_reset(dest, dev); + } + mutex_unlock(&__ip_vs_mutex); +@@ -2028,7 +2029,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v) + " %-7s %-6d %-10d %-10d\n", + &dest->addr.in6, + ntohs(dest->port), +- ip_vs_fwd_name(atomic_read(&dest->conn_flags)), ++ ip_vs_fwd_name(atomic_read_unchecked(&dest->conn_flags)), + atomic_read(&dest->weight), + atomic_read(&dest->activeconns), + atomic_read(&dest->inactconns)); +@@ -2039,7 +2040,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v) + "%-7s %-6d %-10d %-10d\n", + ntohl(dest->addr.ip), + ntohs(dest->port), +- ip_vs_fwd_name(atomic_read(&dest->conn_flags)), ++ ip_vs_fwd_name(atomic_read_unchecked(&dest->conn_flags)), + atomic_read(&dest->weight), + atomic_read(&dest->activeconns), + atomic_read(&dest->inactconns)); +@@ -2509,7 +2510,7 @@ __ip_vs_get_dest_entries(struct net *net, const struct ip_vs_get_dests *get, + + entry.addr = dest->addr.ip; + entry.port = dest->port; +- entry.conn_flags = atomic_read(&dest->conn_flags); ++ entry.conn_flags = atomic_read_unchecked(&dest->conn_flags); + entry.weight = atomic_read(&dest->weight); + entry.u_threshold = dest->u_threshold; + entry.l_threshold = dest->l_threshold; +@@ -3042,7 +3043,7 @@ static int ip_vs_genl_fill_dest(struct sk_buff *skb, struct ip_vs_dest *dest) + NLA_PUT_U16(skb, IPVS_DEST_ATTR_PORT, dest->port); + + NLA_PUT_U32(skb, IPVS_DEST_ATTR_FWD_METHOD, +- atomic_read(&dest->conn_flags) & IP_VS_CONN_F_FWD_MASK); ++ atomic_read_unchecked(&dest->conn_flags) & IP_VS_CONN_F_FWD_MASK); + NLA_PUT_U32(skb, IPVS_DEST_ATTR_WEIGHT, atomic_read(&dest->weight)); + NLA_PUT_U32(skb, IPVS_DEST_ATTR_U_THRESH, dest->u_threshold); + NLA_PUT_U32(skb, IPVS_DEST_ATTR_L_THRESH, dest->l_threshold); +diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c +index 8a0d6d6..90ec197 100644 +--- a/net/netfilter/ipvs/ip_vs_sync.c ++++ b/net/netfilter/ipvs/ip_vs_sync.c +@@ -649,7 +649,7 @@ control: + * i.e only increment in_pkts for Templates. + */ + if (cp->flags & IP_VS_CONN_F_TEMPLATE) { +- int pkts = atomic_add_return(1, &cp->in_pkts); ++ int pkts = atomic_add_return_unchecked(1, &cp->in_pkts); + + if (pkts % sysctl_sync_period(ipvs) != 1) + return; +@@ -795,7 +795,7 @@ static void ip_vs_proc_conn(struct net *net, struct ip_vs_conn_param *param, + + if (opt) + memcpy(&cp->in_seq, opt, sizeof(*opt)); +- atomic_set(&cp->in_pkts, sysctl_sync_threshold(ipvs)); ++ atomic_set_unchecked(&cp->in_pkts, sysctl_sync_threshold(ipvs)); + cp->state = state; + cp->old_state = cp->state; + /* +diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c +index 7fd66de..e6fb361 100644 +--- a/net/netfilter/ipvs/ip_vs_xmit.c ++++ b/net/netfilter/ipvs/ip_vs_xmit.c +@@ -1151,7 +1151,7 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp, + else + rc = NF_ACCEPT; + /* do not touch skb anymore */ +- atomic_inc(&cp->in_pkts); ++ atomic_inc_unchecked(&cp->in_pkts); + goto out; + } + +@@ -1272,7 +1272,7 @@ ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp, + else + rc = NF_ACCEPT; + /* do not touch skb anymore */ +- atomic_inc(&cp->in_pkts); ++ atomic_inc_unchecked(&cp->in_pkts); + goto out; + } + +diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c +index 66b2c54..c7884e3 100644 +--- a/net/netfilter/nfnetlink_log.c ++++ b/net/netfilter/nfnetlink_log.c +@@ -70,7 +70,7 @@ struct nfulnl_instance { + }; + + static DEFINE_SPINLOCK(instances_lock); +-static atomic_t global_seq; ++static atomic_unchecked_t global_seq; + + #define INSTANCE_BUCKETS 16 + static struct hlist_head instance_table[INSTANCE_BUCKETS]; +@@ -502,7 +502,7 @@ __build_packet_message(struct nfulnl_instance *inst, + /* global sequence number */ + if (inst->flags & NFULNL_CFG_F_SEQ_GLOBAL) + NLA_PUT_BE32(inst->skb, NFULA_SEQ_GLOBAL, +- htonl(atomic_inc_return(&global_seq))); ++ htonl(atomic_inc_return_unchecked(&global_seq))); + + if (data_len) { + struct nlattr *nla; +diff --git a/net/netfilter/xt_gradm.c b/net/netfilter/xt_gradm.c +new file mode 100644 +index 0000000..6905327 +--- /dev/null ++++ b/net/netfilter/xt_gradm.c +@@ -0,0 +1,51 @@ ++/* ++ * gradm match for netfilter ++ * Copyright © Zbigniew Krzystolik, 2010 ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License; either version ++ * 2 or 3 as published by the Free Software Foundation. ++ */ ++#include <linux/module.h> ++#include <linux/moduleparam.h> ++#include <linux/skbuff.h> ++#include <linux/netfilter/x_tables.h> ++#include <linux/grsecurity.h> ++#include <linux/netfilter/xt_gradm.h> ++ ++static bool ++gradm_mt(const struct sk_buff *skb, struct xt_action_param *par) ++{ ++ const struct xt_gradm_mtinfo *info = par->matchinfo; ++ bool retval = false; ++ if (gr_acl_is_enabled()) ++ retval = true; ++ return retval ^ info->invflags; ++} ++ ++static struct xt_match gradm_mt_reg __read_mostly = { ++ .name = "gradm", ++ .revision = 0, ++ .family = NFPROTO_UNSPEC, ++ .match = gradm_mt, ++ .matchsize = XT_ALIGN(sizeof(struct xt_gradm_mtinfo)), ++ .me = THIS_MODULE, ++}; ++ ++static int __init gradm_mt_init(void) ++{ ++ return xt_register_match(&gradm_mt_reg); ++} ++ ++static void __exit gradm_mt_exit(void) ++{ ++ xt_unregister_match(&gradm_mt_reg); ++} ++ ++module_init(gradm_mt_init); ++module_exit(gradm_mt_exit); ++MODULE_AUTHOR("Zbigniew Krzystolik <zbyniu(a)destrukcja.pl>"); ++MODULE_DESCRIPTION("Xtables: Grsecurity RBAC match"); ++MODULE_LICENSE("GPL"); ++MODULE_ALIAS("ipt_gradm"); ++MODULE_ALIAS("ip6t_gradm"); +diff --git a/net/netfilter/xt_statistic.c b/net/netfilter/xt_statistic.c +index 4fe4fb4..87a89e5 100644 +--- a/net/netfilter/xt_statistic.c ++++ b/net/netfilter/xt_statistic.c +@@ -19,7 +19,7 @@ + #include <linux/module.h> + + struct xt_statistic_priv { +- atomic_t count; ++ atomic_unchecked_t count; + } ____cacheline_aligned_in_smp; + + MODULE_LICENSE("GPL"); +@@ -42,9 +42,9 @@ statistic_mt(const struct sk_buff *skb, struct xt_action_param *par) + break; + case XT_STATISTIC_MODE_NTH: + do { +- oval = atomic_read(&info->master->count); ++ oval = atomic_read_unchecked(&info->master->count); + nval = (oval == info->u.nth.every) ? 0 : oval + 1; +- } while (atomic_cmpxchg(&info->master->count, oval, nval) != oval); ++ } while (atomic_cmpxchg_unchecked(&info->master->count, oval, nval) != oval); + if (nval == 0) + ret = !ret; + break; +@@ -64,7 +64,7 @@ static int statistic_mt_check(const struct xt_mtchk_param *par) + info->master = kzalloc(sizeof(*info->master), GFP_KERNEL); + if (info->master == NULL) + return -ENOMEM; +- atomic_set(&info->master->count, info->u.nth.count); ++ atomic_set_unchecked(&info->master->count, info->u.nth.count); + + return 0; + } +diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c +index faa48f7..65f7f54 100644 +--- a/net/netlink/af_netlink.c ++++ b/net/netlink/af_netlink.c +@@ -741,7 +741,7 @@ static void netlink_overrun(struct sock *sk) + sk->sk_error_report(sk); + } + } +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + } + + static struct sock *netlink_getsockbypid(struct sock *ssk, u32 pid) +@@ -2013,7 +2013,7 @@ static int netlink_seq_show(struct seq_file *seq, void *v) + sk_wmem_alloc_get(s), + nlk->cb, + atomic_read(&s->sk_refcnt), +- atomic_read(&s->sk_drops), ++ atomic_read_unchecked(&s->sk_drops), + sock_i_ino(s) + ); + +diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c +index 06592d8..64860f6 100644 +--- a/net/netrom/af_netrom.c ++++ b/net/netrom/af_netrom.c +@@ -838,6 +838,7 @@ static int nr_getname(struct socket *sock, struct sockaddr *uaddr, + struct sock *sk = sock->sk; + struct nr_sock *nr = nr_sk(sk); + ++ memset(sax, 0, sizeof(*sax)); + lock_sock(sk); + if (peer != 0) { + if (sk->sk_state != TCP_ESTABLISHED) { +@@ -852,7 +853,6 @@ static int nr_getname(struct socket *sock, struct sockaddr *uaddr, + *uaddr_len = sizeof(struct full_sockaddr_ax25); + } else { + sax->fsa_ax25.sax25_family = AF_NETROM; +- sax->fsa_ax25.sax25_ndigis = 0; + sax->fsa_ax25.sax25_call = nr->source_addr; + *uaddr_len = sizeof(struct sockaddr_ax25); + } +diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c +index 4f2c0df..f0ff342 100644 +--- a/net/packet/af_packet.c ++++ b/net/packet/af_packet.c +@@ -1687,7 +1687,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev, + + spin_lock(&sk->sk_receive_queue.lock); + po->stats.tp_packets++; +- skb->dropcount = atomic_read(&sk->sk_drops); ++ skb->dropcount = atomic_read_unchecked(&sk->sk_drops); + __skb_queue_tail(&sk->sk_receive_queue, skb); + spin_unlock(&sk->sk_receive_queue.lock); + sk->sk_data_ready(sk, skb->len); +@@ -1696,7 +1696,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev, + drop_n_acct: + spin_lock(&sk->sk_receive_queue.lock); + po->stats.tp_drops++; +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + spin_unlock(&sk->sk_receive_queue.lock); + + drop_n_restore: +@@ -3294,7 +3294,7 @@ static int packet_getsockopt(struct socket *sock, int level, int optname, + case PACKET_HDRLEN: + if (len > sizeof(int)) + len = sizeof(int); +- if (copy_from_user(&val, optval, len)) ++ if (len > sizeof(val) || copy_from_user(&val, optval, len)) + return -EFAULT; + switch (val) { + case TPACKET_V1: +@@ -3344,7 +3344,7 @@ static int packet_getsockopt(struct socket *sock, int level, int optname, + + if (put_user(len, optlen)) + return -EFAULT; +- if (copy_to_user(optval, data, len)) ++ if (len > sizeof(st) || copy_to_user(optval, data, len)) + return -EFAULT; + return 0; + } +diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c +index d65f699..05aa6ce 100644 +--- a/net/phonet/af_phonet.c ++++ b/net/phonet/af_phonet.c +@@ -41,7 +41,7 @@ static struct phonet_protocol *phonet_proto_get(unsigned int protocol) + { + struct phonet_protocol *pp; + +- if (protocol >= PHONET_NPROTO) ++ if (protocol < 0 || protocol >= PHONET_NPROTO) + return NULL; + + rcu_read_lock(); +@@ -469,7 +469,7 @@ int __init_or_module phonet_proto_register(unsigned int protocol, + { + int err = 0; + +- if (protocol >= PHONET_NPROTO) ++ if (protocol < 0 || protocol >= PHONET_NPROTO) + return -EINVAL; + + err = proto_register(pp->prot, 1); +diff --git a/net/phonet/pep.c b/net/phonet/pep.c +index 9726fe6..fc4e3a4 100644 +--- a/net/phonet/pep.c ++++ b/net/phonet/pep.c +@@ -388,7 +388,7 @@ static int pipe_do_rcv(struct sock *sk, struct sk_buff *skb) + + case PNS_PEP_CTRL_REQ: + if (skb_queue_len(&pn->ctrlreq_queue) >= PNPIPE_CTRLREQ_MAX) { +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + break; + } + __skb_pull(skb, 4); +@@ -409,7 +409,7 @@ static int pipe_do_rcv(struct sock *sk, struct sk_buff *skb) + } + + if (pn->rx_credits == 0) { +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + err = -ENOBUFS; + break; + } +@@ -580,7 +580,7 @@ static int pipe_handler_do_rcv(struct sock *sk, struct sk_buff *skb) + } + + if (pn->rx_credits == 0) { +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + err = NET_RX_DROP; + break; + } +diff --git a/net/phonet/socket.c b/net/phonet/socket.c +index 4c7eff3..59c727f 100644 +--- a/net/phonet/socket.c ++++ b/net/phonet/socket.c +@@ -613,8 +613,13 @@ static int pn_sock_seq_show(struct seq_file *seq, void *v) + pn->resource, sk->sk_state, + sk_wmem_alloc_get(sk), sk_rmem_alloc_get(sk), + sock_i_uid(sk), sock_i_ino(sk), +- atomic_read(&sk->sk_refcnt), sk, +- atomic_read(&sk->sk_drops), &len); ++ atomic_read(&sk->sk_refcnt), ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ NULL, ++#else ++ sk, ++#endif ++ atomic_read_unchecked(&sk->sk_drops), &len); + } + seq_printf(seq, "%*s\n", 127 - len, ""); + return 0; +diff --git a/net/rds/cong.c b/net/rds/cong.c +index e5b65ac..f3b6fb7 100644 +--- a/net/rds/cong.c ++++ b/net/rds/cong.c +@@ -78,7 +78,7 @@ + * finds that the saved generation number is smaller than the global generation + * number, it wakes up the process. + */ +-static atomic_t rds_cong_generation = ATOMIC_INIT(0); ++static atomic_unchecked_t rds_cong_generation = ATOMIC_INIT(0); + + /* + * Congestion monitoring +@@ -233,7 +233,7 @@ void rds_cong_map_updated(struct rds_cong_map *map, uint64_t portmask) + rdsdebug("waking map %p for %pI4\n", + map, &map->m_addr); + rds_stats_inc(s_cong_update_received); +- atomic_inc(&rds_cong_generation); ++ atomic_inc_unchecked(&rds_cong_generation); + if (waitqueue_active(&map->m_waitq)) + wake_up(&map->m_waitq); + if (waitqueue_active(&rds_poll_waitq)) +@@ -259,7 +259,7 @@ EXPORT_SYMBOL_GPL(rds_cong_map_updated); + + int rds_cong_updated_since(unsigned long *recent) + { +- unsigned long gen = atomic_read(&rds_cong_generation); ++ unsigned long gen = atomic_read_unchecked(&rds_cong_generation); + + if (likely(*recent == gen)) + return 0; +diff --git a/net/rds/ib.h b/net/rds/ib.h +index edfaaaf..8c89879 100644 +--- a/net/rds/ib.h ++++ b/net/rds/ib.h +@@ -128,7 +128,7 @@ struct rds_ib_connection { + /* sending acks */ + unsigned long i_ack_flags; + #ifdef KERNEL_HAS_ATOMIC64 +- atomic64_t i_ack_next; /* next ACK to send */ ++ atomic64_unchecked_t i_ack_next; /* next ACK to send */ + #else + spinlock_t i_ack_lock; /* protect i_ack_next */ + u64 i_ack_next; /* next ACK to send */ +diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c +index a1e1162..265e129 100644 +--- a/net/rds/ib_cm.c ++++ b/net/rds/ib_cm.c +@@ -718,7 +718,7 @@ void rds_ib_conn_shutdown(struct rds_connection *conn) + /* Clear the ACK state */ + clear_bit(IB_ACK_IN_FLIGHT, &ic->i_ack_flags); + #ifdef KERNEL_HAS_ATOMIC64 +- atomic64_set(&ic->i_ack_next, 0); ++ atomic64_set_unchecked(&ic->i_ack_next, 0); + #else + ic->i_ack_next = 0; + #endif +diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c +index 8d19491..05a3e65 100644 +--- a/net/rds/ib_recv.c ++++ b/net/rds/ib_recv.c +@@ -592,7 +592,7 @@ static u64 rds_ib_get_ack(struct rds_ib_connection *ic) + static void rds_ib_set_ack(struct rds_ib_connection *ic, u64 seq, + int ack_required) + { +- atomic64_set(&ic->i_ack_next, seq); ++ atomic64_set_unchecked(&ic->i_ack_next, seq); + if (ack_required) { + smp_mb__before_clear_bit(); + set_bit(IB_ACK_REQUESTED, &ic->i_ack_flags); +@@ -604,7 +604,7 @@ static u64 rds_ib_get_ack(struct rds_ib_connection *ic) + clear_bit(IB_ACK_REQUESTED, &ic->i_ack_flags); + smp_mb__after_clear_bit(); + +- return atomic64_read(&ic->i_ack_next); ++ return atomic64_read_unchecked(&ic->i_ack_next); + } + #endif + +diff --git a/net/rds/iw.h b/net/rds/iw.h +index 04ce3b1..48119a6 100644 +--- a/net/rds/iw.h ++++ b/net/rds/iw.h +@@ -134,7 +134,7 @@ struct rds_iw_connection { + /* sending acks */ + unsigned long i_ack_flags; + #ifdef KERNEL_HAS_ATOMIC64 +- atomic64_t i_ack_next; /* next ACK to send */ ++ atomic64_unchecked_t i_ack_next; /* next ACK to send */ + #else + spinlock_t i_ack_lock; /* protect i_ack_next */ + u64 i_ack_next; /* next ACK to send */ +diff --git a/net/rds/iw_cm.c b/net/rds/iw_cm.c +index a91e1db..cf3053f 100644 +--- a/net/rds/iw_cm.c ++++ b/net/rds/iw_cm.c +@@ -663,7 +663,7 @@ void rds_iw_conn_shutdown(struct rds_connection *conn) + /* Clear the ACK state */ + clear_bit(IB_ACK_IN_FLIGHT, &ic->i_ack_flags); + #ifdef KERNEL_HAS_ATOMIC64 +- atomic64_set(&ic->i_ack_next, 0); ++ atomic64_set_unchecked(&ic->i_ack_next, 0); + #else + ic->i_ack_next = 0; + #endif +diff --git a/net/rds/iw_recv.c b/net/rds/iw_recv.c +index 4503335..db566b4 100644 +--- a/net/rds/iw_recv.c ++++ b/net/rds/iw_recv.c +@@ -427,7 +427,7 @@ static u64 rds_iw_get_ack(struct rds_iw_connection *ic) + static void rds_iw_set_ack(struct rds_iw_connection *ic, u64 seq, + int ack_required) + { +- atomic64_set(&ic->i_ack_next, seq); ++ atomic64_set_unchecked(&ic->i_ack_next, seq); + if (ack_required) { + smp_mb__before_clear_bit(); + set_bit(IB_ACK_REQUESTED, &ic->i_ack_flags); +@@ -439,7 +439,7 @@ static u64 rds_iw_get_ack(struct rds_iw_connection *ic) + clear_bit(IB_ACK_REQUESTED, &ic->i_ack_flags); + smp_mb__after_clear_bit(); + +- return atomic64_read(&ic->i_ack_next); ++ return atomic64_read_unchecked(&ic->i_ack_next); + } + #endif + +diff --git a/net/rds/tcp.c b/net/rds/tcp.c +index edac9ef..16bcb98 100644 +--- a/net/rds/tcp.c ++++ b/net/rds/tcp.c +@@ -59,7 +59,7 @@ void rds_tcp_nonagle(struct socket *sock) + int val = 1; + + set_fs(KERNEL_DS); +- sock->ops->setsockopt(sock, SOL_TCP, TCP_NODELAY, (char __user *)&val, ++ sock->ops->setsockopt(sock, SOL_TCP, TCP_NODELAY, (char __force_user *)&val, + sizeof(val)); + set_fs(oldfs); + } +diff --git a/net/rds/tcp_send.c b/net/rds/tcp_send.c +index 1b4fd68..2234175 100644 +--- a/net/rds/tcp_send.c ++++ b/net/rds/tcp_send.c +@@ -43,7 +43,7 @@ static void rds_tcp_cork(struct socket *sock, int val) + + oldfs = get_fs(); + set_fs(KERNEL_DS); +- sock->ops->setsockopt(sock, SOL_TCP, TCP_CORK, (char __user *)&val, ++ sock->ops->setsockopt(sock, SOL_TCP, TCP_CORK, (char __force_user *)&val, + sizeof(val)); + set_fs(oldfs); + } +diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c +index 74c064c..fdec26f 100644 +--- a/net/rxrpc/af_rxrpc.c ++++ b/net/rxrpc/af_rxrpc.c +@@ -39,7 +39,7 @@ static const struct proto_ops rxrpc_rpc_ops; + __be32 rxrpc_epoch; + + /* current debugging ID */ +-atomic_t rxrpc_debug_id; ++atomic_unchecked_t rxrpc_debug_id; + + /* count of skbs currently in use */ + atomic_t rxrpc_n_skbs; +diff --git a/net/rxrpc/ar-ack.c b/net/rxrpc/ar-ack.c +index c3126e8..21facc7 100644 +--- a/net/rxrpc/ar-ack.c ++++ b/net/rxrpc/ar-ack.c +@@ -175,7 +175,7 @@ static void rxrpc_resend(struct rxrpc_call *call) + + _enter("{%d,%d,%d,%d},", + call->acks_hard, call->acks_unacked, +- atomic_read(&call->sequence), ++ atomic_read_unchecked(&call->sequence), + CIRC_CNT(call->acks_head, call->acks_tail, call->acks_winsz)); + + stop = 0; +@@ -199,7 +199,7 @@ static void rxrpc_resend(struct rxrpc_call *call) + + /* each Tx packet has a new serial number */ + sp->hdr.serial = +- htonl(atomic_inc_return(&call->conn->serial)); ++ htonl(atomic_inc_return_unchecked(&call->conn->serial)); + + hdr = (struct rxrpc_header *) txb->head; + hdr->serial = sp->hdr.serial; +@@ -403,7 +403,7 @@ static void rxrpc_rotate_tx_window(struct rxrpc_call *call, u32 hard) + */ + static void rxrpc_clear_tx_window(struct rxrpc_call *call) + { +- rxrpc_rotate_tx_window(call, atomic_read(&call->sequence)); ++ rxrpc_rotate_tx_window(call, atomic_read_unchecked(&call->sequence)); + } + + /* +@@ -629,7 +629,7 @@ process_further: + + latest = ntohl(sp->hdr.serial); + hard = ntohl(ack.firstPacket); +- tx = atomic_read(&call->sequence); ++ tx = atomic_read_unchecked(&call->sequence); + + _proto("Rx ACK %%%u { m=%hu f=#%u p=#%u s=%%%u r=%s n=%u }", + latest, +@@ -1161,7 +1161,7 @@ void rxrpc_process_call(struct work_struct *work) + goto maybe_reschedule; + + send_ACK_with_skew: +- ack.maxSkew = htons(atomic_read(&call->conn->hi_serial) - ++ ack.maxSkew = htons(atomic_read_unchecked(&call->conn->hi_serial) - + ntohl(ack.serial)); + send_ACK: + mtu = call->conn->trans->peer->if_mtu; +@@ -1173,7 +1173,7 @@ send_ACK: + ackinfo.rxMTU = htonl(5692); + ackinfo.jumbo_max = htonl(4); + +- hdr.serial = htonl(atomic_inc_return(&call->conn->serial)); ++ hdr.serial = htonl(atomic_inc_return_unchecked(&call->conn->serial)); + _proto("Tx ACK %%%u { m=%hu f=#%u p=#%u s=%%%u r=%s n=%u }", + ntohl(hdr.serial), + ntohs(ack.maxSkew), +@@ -1191,7 +1191,7 @@ send_ACK: + send_message: + _debug("send message"); + +- hdr.serial = htonl(atomic_inc_return(&call->conn->serial)); ++ hdr.serial = htonl(atomic_inc_return_unchecked(&call->conn->serial)); + _proto("Tx %s %%%u", rxrpc_pkts[hdr.type], ntohl(hdr.serial)); + send_message_2: + +diff --git a/net/rxrpc/ar-call.c b/net/rxrpc/ar-call.c +index bf656c2..48f9d27 100644 +--- a/net/rxrpc/ar-call.c ++++ b/net/rxrpc/ar-call.c +@@ -83,7 +83,7 @@ static struct rxrpc_call *rxrpc_alloc_call(gfp_t gfp) + spin_lock_init(&call->lock); + rwlock_init(&call->state_lock); + atomic_set(&call->usage, 1); +- call->debug_id = atomic_inc_return(&rxrpc_debug_id); ++ call->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id); + call->state = RXRPC_CALL_CLIENT_SEND_REQUEST; + + memset(&call->sock_node, 0xed, sizeof(call->sock_node)); +diff --git a/net/rxrpc/ar-connection.c b/net/rxrpc/ar-connection.c +index 4106ca9..a338d7a 100644 +--- a/net/rxrpc/ar-connection.c ++++ b/net/rxrpc/ar-connection.c +@@ -206,7 +206,7 @@ static struct rxrpc_connection *rxrpc_alloc_connection(gfp_t gfp) + rwlock_init(&conn->lock); + spin_lock_init(&conn->state_lock); + atomic_set(&conn->usage, 1); +- conn->debug_id = atomic_inc_return(&rxrpc_debug_id); ++ conn->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id); + conn->avail_calls = RXRPC_MAXCALLS; + conn->size_align = 4; + conn->header_size = sizeof(struct rxrpc_header); +diff --git a/net/rxrpc/ar-connevent.c b/net/rxrpc/ar-connevent.c +index e7ed43a..6afa140 100644 +--- a/net/rxrpc/ar-connevent.c ++++ b/net/rxrpc/ar-connevent.c +@@ -109,7 +109,7 @@ static int rxrpc_abort_connection(struct rxrpc_connection *conn, + + len = iov[0].iov_len + iov[1].iov_len; + +- hdr.serial = htonl(atomic_inc_return(&conn->serial)); ++ hdr.serial = htonl(atomic_inc_return_unchecked(&conn->serial)); + _proto("Tx CONN ABORT %%%u { %d }", ntohl(hdr.serial), abort_code); + + ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 2, len); +diff --git a/net/rxrpc/ar-input.c b/net/rxrpc/ar-input.c +index 1a2b0633..e8d1382 100644 +--- a/net/rxrpc/ar-input.c ++++ b/net/rxrpc/ar-input.c +@@ -340,9 +340,9 @@ void rxrpc_fast_process_packet(struct rxrpc_call *call, struct sk_buff *skb) + /* track the latest serial number on this connection for ACK packet + * information */ + serial = ntohl(sp->hdr.serial); +- hi_serial = atomic_read(&call->conn->hi_serial); ++ hi_serial = atomic_read_unchecked(&call->conn->hi_serial); + while (serial > hi_serial) +- hi_serial = atomic_cmpxchg(&call->conn->hi_serial, hi_serial, ++ hi_serial = atomic_cmpxchg_unchecked(&call->conn->hi_serial, hi_serial, + serial); + + /* request ACK generation for any ACK or DATA packet that requests +diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h +index 8e22bd3..f66d1c0 100644 +--- a/net/rxrpc/ar-internal.h ++++ b/net/rxrpc/ar-internal.h +@@ -272,8 +272,8 @@ struct rxrpc_connection { + int error; /* error code for local abort */ + int debug_id; /* debug ID for printks */ + unsigned call_counter; /* call ID counter */ +- atomic_t serial; /* packet serial number counter */ +- atomic_t hi_serial; /* highest serial number received */ ++ atomic_unchecked_t serial; /* packet serial number counter */ ++ atomic_unchecked_t hi_serial; /* highest serial number received */ + u8 avail_calls; /* number of calls available */ + u8 size_align; /* data size alignment (for security) */ + u8 header_size; /* rxrpc + security header size */ +@@ -346,7 +346,7 @@ struct rxrpc_call { + spinlock_t lock; + rwlock_t state_lock; /* lock for state transition */ + atomic_t usage; +- atomic_t sequence; /* Tx data packet sequence counter */ ++ atomic_unchecked_t sequence; /* Tx data packet sequence counter */ + u32 abort_code; /* local/remote abort code */ + enum { /* current state of call */ + RXRPC_CALL_CLIENT_SEND_REQUEST, /* - client sending request phase */ +@@ -420,7 +420,7 @@ static inline void rxrpc_abort_call(struct rxrpc_call *call, u32 abort_code) + */ + extern atomic_t rxrpc_n_skbs; + extern __be32 rxrpc_epoch; +-extern atomic_t rxrpc_debug_id; ++extern atomic_unchecked_t rxrpc_debug_id; + extern struct workqueue_struct *rxrpc_workqueue; + + /* +diff --git a/net/rxrpc/ar-local.c b/net/rxrpc/ar-local.c +index 87f7135..74d3703 100644 +--- a/net/rxrpc/ar-local.c ++++ b/net/rxrpc/ar-local.c +@@ -45,7 +45,7 @@ struct rxrpc_local *rxrpc_alloc_local(struct sockaddr_rxrpc *srx) + spin_lock_init(&local->lock); + rwlock_init(&local->services_lock); + atomic_set(&local->usage, 1); +- local->debug_id = atomic_inc_return(&rxrpc_debug_id); ++ local->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id); + memcpy(&local->srx, srx, sizeof(*srx)); + } + +diff --git a/net/rxrpc/ar-output.c b/net/rxrpc/ar-output.c +index 16ae887..d24f12b 100644 +--- a/net/rxrpc/ar-output.c ++++ b/net/rxrpc/ar-output.c +@@ -682,9 +682,9 @@ static int rxrpc_send_data(struct kiocb *iocb, + sp->hdr.cid = call->cid; + sp->hdr.callNumber = call->call_id; + sp->hdr.seq = +- htonl(atomic_inc_return(&call->sequence)); ++ htonl(atomic_inc_return_unchecked(&call->sequence)); + sp->hdr.serial = +- htonl(atomic_inc_return(&conn->serial)); ++ htonl(atomic_inc_return_unchecked(&conn->serial)); + sp->hdr.type = RXRPC_PACKET_TYPE_DATA; + sp->hdr.userStatus = 0; + sp->hdr.securityIndex = conn->security_ix; +diff --git a/net/rxrpc/ar-peer.c b/net/rxrpc/ar-peer.c +index 2754f09..b20e38f 100644 +--- a/net/rxrpc/ar-peer.c ++++ b/net/rxrpc/ar-peer.c +@@ -72,7 +72,7 @@ static struct rxrpc_peer *rxrpc_alloc_peer(struct sockaddr_rxrpc *srx, + INIT_LIST_HEAD(&peer->error_targets); + spin_lock_init(&peer->lock); + atomic_set(&peer->usage, 1); +- peer->debug_id = atomic_inc_return(&rxrpc_debug_id); ++ peer->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id); + memcpy(&peer->srx, srx, sizeof(*srx)); + + rxrpc_assess_MTU_size(peer); +diff --git a/net/rxrpc/ar-proc.c b/net/rxrpc/ar-proc.c +index 38047f7..9f48511 100644 +--- a/net/rxrpc/ar-proc.c ++++ b/net/rxrpc/ar-proc.c +@@ -164,8 +164,8 @@ static int rxrpc_connection_seq_show(struct seq_file *seq, void *v) + atomic_read(&conn->usage), + rxrpc_conn_states[conn->state], + key_serial(conn->key), +- atomic_read(&conn->serial), +- atomic_read(&conn->hi_serial)); ++ atomic_read_unchecked(&conn->serial), ++ atomic_read_unchecked(&conn->hi_serial)); + + return 0; + } +diff --git a/net/rxrpc/ar-transport.c b/net/rxrpc/ar-transport.c +index 92df566..87ec1bf 100644 +--- a/net/rxrpc/ar-transport.c ++++ b/net/rxrpc/ar-transport.c +@@ -47,7 +47,7 @@ static struct rxrpc_transport *rxrpc_alloc_transport(struct rxrpc_local *local, + spin_lock_init(&trans->client_lock); + rwlock_init(&trans->conn_lock); + atomic_set(&trans->usage, 1); +- trans->debug_id = atomic_inc_return(&rxrpc_debug_id); ++ trans->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id); + + if (peer->srx.transport.family == AF_INET) { + switch (peer->srx.transport_type) { +diff --git a/net/rxrpc/rxkad.c b/net/rxrpc/rxkad.c +index 7635107..4670276 100644 +--- a/net/rxrpc/rxkad.c ++++ b/net/rxrpc/rxkad.c +@@ -610,7 +610,7 @@ static int rxkad_issue_challenge(struct rxrpc_connection *conn) + + len = iov[0].iov_len + iov[1].iov_len; + +- hdr.serial = htonl(atomic_inc_return(&conn->serial)); ++ hdr.serial = htonl(atomic_inc_return_unchecked(&conn->serial)); + _proto("Tx CHALLENGE %%%u", ntohl(hdr.serial)); + + ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 2, len); +@@ -660,7 +660,7 @@ static int rxkad_send_response(struct rxrpc_connection *conn, + + len = iov[0].iov_len + iov[1].iov_len + iov[2].iov_len; + +- hdr->serial = htonl(atomic_inc_return(&conn->serial)); ++ hdr->serial = htonl(atomic_inc_return_unchecked(&conn->serial)); + _proto("Tx RESPONSE %%%u", ntohl(hdr->serial)); + + ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 3, len); +diff --git a/net/sctp/input.c b/net/sctp/input.c +index 80f71af..be772c0 100644 +--- a/net/sctp/input.c ++++ b/net/sctp/input.c +@@ -736,15 +736,12 @@ static void __sctp_unhash_endpoint(struct sctp_endpoint *ep) + + epb = &ep->base; + +- if (hlist_unhashed(&epb->node)) +- return; +- + epb->hashent = sctp_ep_hashfn(epb->bind_addr.port); + + head = &sctp_ep_hashtable[epb->hashent]; + + sctp_write_lock(&head->lock); +- __hlist_del(&epb->node); ++ hlist_del_init(&epb->node); + sctp_write_unlock(&head->lock); + } + +@@ -825,7 +822,7 @@ static void __sctp_unhash_established(struct sctp_association *asoc) + head = &sctp_assoc_hashtable[epb->hashent]; + + sctp_write_lock(&head->lock); +- __hlist_del(&epb->node); ++ hlist_del_init(&epb->node); + sctp_write_unlock(&head->lock); + } + +diff --git a/net/sctp/proc.c b/net/sctp/proc.c +index 1e2eee8..ce3967e 100644 +--- a/net/sctp/proc.c ++++ b/net/sctp/proc.c +@@ -319,7 +319,8 @@ static int sctp_assocs_seq_show(struct seq_file *seq, void *v) + seq_printf(seq, + "%8pK %8pK %-3d %-3d %-2d %-4d " + "%4d %8d %8d %7d %5lu %-5d %5d ", +- assoc, sk, sctp_sk(sk)->type, sk->sk_state, ++ assoc, sk, ++ sctp_sk(sk)->type, sk->sk_state, + assoc->state, hash, + assoc->assoc_id, + assoc->sndbuf_used, +diff --git a/net/sctp/socket.c b/net/sctp/socket.c +index 92ba71d..9352c05 100644 +--- a/net/sctp/socket.c ++++ b/net/sctp/socket.c +@@ -1231,8 +1231,14 @@ out_free: + SCTP_DEBUG_PRINTK("About to exit __sctp_connect() free asoc: %p" + " kaddrs: %p err: %d\n", + asoc, kaddrs, err); +- if (asoc) ++ if (asoc) { ++ /* sctp_primitive_ASSOCIATE may have added this association ++ * To the hash table, try to unhash it, just in case, its a noop ++ * if it wasn't hashed so we're safe ++ */ ++ sctp_unhash_established(asoc); + sctp_association_free(asoc); ++ } + return err; + } + +@@ -1942,8 +1948,10 @@ SCTP_STATIC int sctp_sendmsg(struct kiocb *iocb, struct sock *sk, + goto out_unlock; + + out_free: +- if (new_asoc) ++ if (new_asoc) { ++ sctp_unhash_established(asoc); + sctp_association_free(asoc); ++ } + out_unlock: + sctp_release_sock(sk); + +@@ -4569,7 +4577,7 @@ static int sctp_getsockopt_peer_addrs(struct sock *sk, int len, + addrlen = sctp_get_af_specific(temp.sa.sa_family)->sockaddr_len; + if (space_left < addrlen) + return -ENOMEM; +- if (copy_to_user(to, &temp, addrlen)) ++ if (addrlen > sizeof(temp) || copy_to_user(to, &temp, addrlen)) + return -EFAULT; + to += addrlen; + cnt++; +diff --git a/net/socket.c b/net/socket.c +index 851edcd..b786851 100644 +--- a/net/socket.c ++++ b/net/socket.c +@@ -88,6 +88,7 @@ + #include <linux/nsproxy.h> + #include <linux/magic.h> + #include <linux/slab.h> ++#include <linux/in.h> + + #include <asm/uaccess.h> + #include <asm/unistd.h> +@@ -105,6 +106,8 @@ + #include <linux/sockios.h> + #include <linux/atalk.h> + ++#include <linux/grsock.h> ++ + static int sock_no_open(struct inode *irrelevant, struct file *dontcare); + static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov, + unsigned long nr_segs, loff_t pos); +@@ -321,7 +324,7 @@ static struct dentry *sockfs_mount(struct file_system_type *fs_type, + &sockfs_dentry_operations, SOCKFS_MAGIC); + } + +-static struct vfsmount *sock_mnt __read_mostly; ++struct vfsmount *sock_mnt __read_mostly; + + static struct file_system_type sock_fs_type = { + .name = "sockfs", +@@ -1207,6 +1210,8 @@ int __sock_create(struct net *net, int family, int type, int protocol, + return -EAFNOSUPPORT; + if (type < 0 || type >= SOCK_MAX) + return -EINVAL; ++ if (protocol < 0) ++ return -EINVAL; + + /* Compatibility. + +@@ -1339,6 +1344,16 @@ SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol) + if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK)) + flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK; + ++ if(!gr_search_socket(family, type, protocol)) { ++ retval = -EACCES; ++ goto out; ++ } ++ ++ if (gr_handle_sock_all(family, type, protocol)) { ++ retval = -EACCES; ++ goto out; ++ } ++ + retval = sock_create(family, type, protocol, &sock); + if (retval < 0) + goto out; +@@ -1451,6 +1466,14 @@ SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen) + if (sock) { + err = move_addr_to_kernel(umyaddr, addrlen, &address); + if (err >= 0) { ++ if (gr_handle_sock_server((struct sockaddr *)&address)) { ++ err = -EACCES; ++ goto error; ++ } ++ err = gr_search_bind(sock, (struct sockaddr_in *)&address); ++ if (err) ++ goto error; ++ + err = security_socket_bind(sock, + (struct sockaddr *)&address, + addrlen); +@@ -1459,6 +1482,7 @@ SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen) + (struct sockaddr *) + &address, addrlen); + } ++error: + fput_light(sock->file, fput_needed); + } + return err; +@@ -1482,10 +1506,20 @@ SYSCALL_DEFINE2(listen, int, fd, int, backlog) + if ((unsigned)backlog > somaxconn) + backlog = somaxconn; + ++ if (gr_handle_sock_server_other(sock->sk)) { ++ err = -EPERM; ++ goto error; ++ } ++ ++ err = gr_search_listen(sock); ++ if (err) ++ goto error; ++ + err = security_socket_listen(sock, backlog); + if (!err) + err = sock->ops->listen(sock, backlog); + ++error: + fput_light(sock->file, fput_needed); + } + return err; +@@ -1529,6 +1563,18 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr, + newsock->type = sock->type; + newsock->ops = sock->ops; + ++ if (gr_handle_sock_server_other(sock->sk)) { ++ err = -EPERM; ++ sock_release(newsock); ++ goto out_put; ++ } ++ ++ err = gr_search_accept(sock); ++ if (err) { ++ sock_release(newsock); ++ goto out_put; ++ } ++ + /* + * We don't need try_module_get here, as the listening socket (sock) + * has the protocol module (sock->ops->owner) held. +@@ -1567,6 +1613,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr, + fd_install(newfd, newfile); + err = newfd; + ++ gr_attach_curr_ip(newsock->sk); ++ + out_put: + fput_light(sock->file, fput_needed); + out: +@@ -1599,6 +1647,7 @@ SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr, + int, addrlen) + { + struct socket *sock; ++ struct sockaddr *sck; + struct sockaddr_storage address; + int err, fput_needed; + +@@ -1609,6 +1658,17 @@ SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr, + if (err < 0) + goto out_put; + ++ sck = (struct sockaddr *)&address; ++ ++ if (gr_handle_sock_client(sck)) { ++ err = -EACCES; ++ goto out_put; ++ } ++ ++ err = gr_search_connect(sock, (struct sockaddr_in *)sck); ++ if (err) ++ goto out_put; ++ + err = + security_socket_connect(sock, (struct sockaddr *)&address, addrlen); + if (err) +@@ -1966,7 +2026,7 @@ static int __sys_sendmsg(struct socket *sock, struct msghdr __user *msg, + * checking falls down on this. + */ + if (copy_from_user(ctl_buf, +- (void __user __force *)msg_sys->msg_control, ++ (void __force_user *)msg_sys->msg_control, + ctl_len)) + goto out_freectl; + msg_sys->msg_control = ctl_buf; +@@ -2136,7 +2196,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg, + * kernel msghdr to use the kernel address space) + */ + +- uaddr = (__force void __user *)msg_sys->msg_name; ++ uaddr = (void __force_user *)msg_sys->msg_name; + uaddr_len = COMPAT_NAMELEN(msg); + if (MSG_CMSG_COMPAT & flags) { + err = verify_compat_iovec(msg_sys, iov, &addr, VERIFY_WRITE); +@@ -2758,7 +2818,7 @@ static int ethtool_ioctl(struct net *net, struct compat_ifreq __user *ifr32) + } + + ifr = compat_alloc_user_space(buf_size); +- rxnfc = (void *)ifr + ALIGN(sizeof(struct ifreq), 8); ++ rxnfc = (void __user *)ifr + ALIGN(sizeof(struct ifreq), 8); + + if (copy_in_user(&ifr->ifr_name, &ifr32->ifr_name, IFNAMSIZ)) + return -EFAULT; +@@ -2782,12 +2842,12 @@ static int ethtool_ioctl(struct net *net, struct compat_ifreq __user *ifr32) + offsetof(struct ethtool_rxnfc, fs.ring_cookie)); + + if (copy_in_user(rxnfc, compat_rxnfc, +- (void *)(&rxnfc->fs.m_ext + 1) - +- (void *)rxnfc) || ++ (void __user *)(&rxnfc->fs.m_ext + 1) - ++ (void __user *)rxnfc) || + copy_in_user(&rxnfc->fs.ring_cookie, + &compat_rxnfc->fs.ring_cookie, +- (void *)(&rxnfc->fs.location + 1) - +- (void *)&rxnfc->fs.ring_cookie) || ++ (void __user *)(&rxnfc->fs.location + 1) - ++ (void __user *)&rxnfc->fs.ring_cookie) || + copy_in_user(&rxnfc->rule_cnt, &compat_rxnfc->rule_cnt, + sizeof(rxnfc->rule_cnt))) + return -EFAULT; +@@ -2799,12 +2859,12 @@ static int ethtool_ioctl(struct net *net, struct compat_ifreq __user *ifr32) + + if (convert_out) { + if (copy_in_user(compat_rxnfc, rxnfc, +- (const void *)(&rxnfc->fs.m_ext + 1) - +- (const void *)rxnfc) || ++ (const void __user *)(&rxnfc->fs.m_ext + 1) - ++ (const void __user *)rxnfc) || + copy_in_user(&compat_rxnfc->fs.ring_cookie, + &rxnfc->fs.ring_cookie, +- (const void *)(&rxnfc->fs.location + 1) - +- (const void *)&rxnfc->fs.ring_cookie) || ++ (const void __user *)(&rxnfc->fs.location + 1) - ++ (const void __user *)&rxnfc->fs.ring_cookie) || + copy_in_user(&compat_rxnfc->rule_cnt, &rxnfc->rule_cnt, + sizeof(rxnfc->rule_cnt))) + return -EFAULT; +@@ -2874,7 +2934,7 @@ static int bond_ioctl(struct net *net, unsigned int cmd, + old_fs = get_fs(); + set_fs(KERNEL_DS); + err = dev_ioctl(net, cmd, +- (struct ifreq __user __force *) &kifr); ++ (struct ifreq __force_user *) &kifr); + set_fs(old_fs); + + return err; +@@ -2983,7 +3043,7 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd, + + old_fs = get_fs(); + set_fs(KERNEL_DS); +- err = dev_ioctl(net, cmd, (void __user __force *)&ifr); ++ err = dev_ioctl(net, cmd, (void __force_user *)&ifr); + set_fs(old_fs); + + if (cmd == SIOCGIFMAP && !err) { +@@ -3088,7 +3148,7 @@ static int routing_ioctl(struct net *net, struct socket *sock, + ret |= __get_user(rtdev, &(ur4->rt_dev)); + if (rtdev) { + ret |= copy_from_user(devname, compat_ptr(rtdev), 15); +- r4.rt_dev = (char __user __force *)devname; ++ r4.rt_dev = (char __force_user *)devname; + devname[15] = 0; + } else + r4.rt_dev = NULL; +@@ -3314,8 +3374,8 @@ int kernel_getsockopt(struct socket *sock, int level, int optname, + int __user *uoptlen; + int err; + +- uoptval = (char __user __force *) optval; +- uoptlen = (int __user __force *) optlen; ++ uoptval = (char __force_user *) optval; ++ uoptlen = (int __force_user *) optlen; + + set_fs(KERNEL_DS); + if (level == SOL_SOCKET) +@@ -3335,7 +3395,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname, + char __user *uoptval; + int err; + +- uoptval = (char __user __force *) optval; ++ uoptval = (char __force_user *) optval; + + set_fs(KERNEL_DS); + if (level == SOL_SOCKET) +diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c +index 994cfea..5343b6b 100644 +--- a/net/sunrpc/sched.c ++++ b/net/sunrpc/sched.c +@@ -240,9 +240,9 @@ static int rpc_wait_bit_killable(void *word) + #ifdef RPC_DEBUG + static void rpc_task_set_debuginfo(struct rpc_task *task) + { +- static atomic_t rpc_pid; ++ static atomic_unchecked_t rpc_pid; + +- task->tk_pid = atomic_inc_return(&rpc_pid); ++ task->tk_pid = atomic_inc_return_unchecked(&rpc_pid); + } + #else + static inline void rpc_task_set_debuginfo(struct rpc_task *task) +diff --git a/net/sunrpc/xprtrdma/svc_rdma.c b/net/sunrpc/xprtrdma/svc_rdma.c +index 8343737..677025e 100644 +--- a/net/sunrpc/xprtrdma/svc_rdma.c ++++ b/net/sunrpc/xprtrdma/svc_rdma.c +@@ -62,15 +62,15 @@ unsigned int svcrdma_max_req_size = RPCRDMA_MAX_REQ_SIZE; + static unsigned int min_max_inline = 4096; + static unsigned int max_max_inline = 65536; + +-atomic_t rdma_stat_recv; +-atomic_t rdma_stat_read; +-atomic_t rdma_stat_write; +-atomic_t rdma_stat_sq_starve; +-atomic_t rdma_stat_rq_starve; +-atomic_t rdma_stat_rq_poll; +-atomic_t rdma_stat_rq_prod; +-atomic_t rdma_stat_sq_poll; +-atomic_t rdma_stat_sq_prod; ++atomic_unchecked_t rdma_stat_recv; ++atomic_unchecked_t rdma_stat_read; ++atomic_unchecked_t rdma_stat_write; ++atomic_unchecked_t rdma_stat_sq_starve; ++atomic_unchecked_t rdma_stat_rq_starve; ++atomic_unchecked_t rdma_stat_rq_poll; ++atomic_unchecked_t rdma_stat_rq_prod; ++atomic_unchecked_t rdma_stat_sq_poll; ++atomic_unchecked_t rdma_stat_sq_prod; + + /* Temporary NFS request map and context caches */ + struct kmem_cache *svc_rdma_map_cachep; +@@ -110,7 +110,7 @@ static int read_reset_stat(ctl_table *table, int write, + len -= *ppos; + if (len > *lenp) + len = *lenp; +- if (len && copy_to_user(buffer, str_buf, len)) ++ if (len > sizeof str_buf || (len && copy_to_user(buffer, str_buf, len))) + return -EFAULT; + *lenp = len; + *ppos += len; +@@ -151,63 +151,63 @@ static ctl_table svcrdma_parm_table[] = { + { + .procname = "rdma_stat_read", + .data = &rdma_stat_read, +- .maxlen = sizeof(atomic_t), ++ .maxlen = sizeof(atomic_unchecked_t), + .mode = 0644, + .proc_handler = read_reset_stat, + }, + { + .procname = "rdma_stat_recv", + .data = &rdma_stat_recv, +- .maxlen = sizeof(atomic_t), ++ .maxlen = sizeof(atomic_unchecked_t), + .mode = 0644, + .proc_handler = read_reset_stat, + }, + { + .procname = "rdma_stat_write", + .data = &rdma_stat_write, +- .maxlen = sizeof(atomic_t), ++ .maxlen = sizeof(atomic_unchecked_t), + .mode = 0644, + .proc_handler = read_reset_stat, + }, + { + .procname = "rdma_stat_sq_starve", + .data = &rdma_stat_sq_starve, +- .maxlen = sizeof(atomic_t), ++ .maxlen = sizeof(atomic_unchecked_t), + .mode = 0644, + .proc_handler = read_reset_stat, + }, + { + .procname = "rdma_stat_rq_starve", + .data = &rdma_stat_rq_starve, +- .maxlen = sizeof(atomic_t), ++ .maxlen = sizeof(atomic_unchecked_t), + .mode = 0644, + .proc_handler = read_reset_stat, + }, + { + .procname = "rdma_stat_rq_poll", + .data = &rdma_stat_rq_poll, +- .maxlen = sizeof(atomic_t), ++ .maxlen = sizeof(atomic_unchecked_t), + .mode = 0644, + .proc_handler = read_reset_stat, + }, + { + .procname = "rdma_stat_rq_prod", + .data = &rdma_stat_rq_prod, +- .maxlen = sizeof(atomic_t), ++ .maxlen = sizeof(atomic_unchecked_t), + .mode = 0644, + .proc_handler = read_reset_stat, + }, + { + .procname = "rdma_stat_sq_poll", + .data = &rdma_stat_sq_poll, +- .maxlen = sizeof(atomic_t), ++ .maxlen = sizeof(atomic_unchecked_t), + .mode = 0644, + .proc_handler = read_reset_stat, + }, + { + .procname = "rdma_stat_sq_prod", + .data = &rdma_stat_sq_prod, +- .maxlen = sizeof(atomic_t), ++ .maxlen = sizeof(atomic_unchecked_t), + .mode = 0644, + .proc_handler = read_reset_stat, + }, +diff --git a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c +index 41cb63b..c4a1489 100644 +--- a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c ++++ b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c +@@ -501,7 +501,7 @@ next_sge: + svc_rdma_put_context(ctxt, 0); + goto out; + } +- atomic_inc(&rdma_stat_read); ++ atomic_inc_unchecked(&rdma_stat_read); + + if (read_wr.num_sge < chl_map->ch[ch_no].count) { + chl_map->ch[ch_no].count -= read_wr.num_sge; +@@ -611,7 +611,7 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp) + dto_q); + list_del_init(&ctxt->dto_q); + } else { +- atomic_inc(&rdma_stat_rq_starve); ++ atomic_inc_unchecked(&rdma_stat_rq_starve); + clear_bit(XPT_DATA, &xprt->xpt_flags); + ctxt = NULL; + } +@@ -631,7 +631,7 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp) + dprintk("svcrdma: processing ctxt=%p on xprt=%p, rqstp=%p, status=%d\n", + ctxt, rdma_xprt, rqstp, ctxt->wc_status); + BUG_ON(ctxt->wc_status != IB_WC_SUCCESS); +- atomic_inc(&rdma_stat_recv); ++ atomic_inc_unchecked(&rdma_stat_recv); + + /* Build up the XDR from the receive buffers. */ + rdma_build_arg_xdr(rqstp, ctxt, ctxt->byte_len); +diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c +index 42eb7ba..c887c45 100644 +--- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c ++++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c +@@ -362,7 +362,7 @@ static int send_write(struct svcxprt_rdma *xprt, struct svc_rqst *rqstp, + write_wr.wr.rdma.remote_addr = to; + + /* Post It */ +- atomic_inc(&rdma_stat_write); ++ atomic_inc_unchecked(&rdma_stat_write); + if (svc_rdma_send(xprt, &write_wr)) + goto err; + return 0; +diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c +index 73b428b..5f3f8f3 100644 +--- a/net/sunrpc/xprtrdma/svc_rdma_transport.c ++++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c +@@ -292,7 +292,7 @@ static void rq_cq_reap(struct svcxprt_rdma *xprt) + return; + + ib_req_notify_cq(xprt->sc_rq_cq, IB_CQ_NEXT_COMP); +- atomic_inc(&rdma_stat_rq_poll); ++ atomic_inc_unchecked(&rdma_stat_rq_poll); + + while ((ret = ib_poll_cq(xprt->sc_rq_cq, 1, &wc)) > 0) { + ctxt = (struct svc_rdma_op_ctxt *)(unsigned long)wc.wr_id; +@@ -314,7 +314,7 @@ static void rq_cq_reap(struct svcxprt_rdma *xprt) + } + + if (ctxt) +- atomic_inc(&rdma_stat_rq_prod); ++ atomic_inc_unchecked(&rdma_stat_rq_prod); + + set_bit(XPT_DATA, &xprt->sc_xprt.xpt_flags); + /* +@@ -386,7 +386,7 @@ static void sq_cq_reap(struct svcxprt_rdma *xprt) + return; + + ib_req_notify_cq(xprt->sc_sq_cq, IB_CQ_NEXT_COMP); +- atomic_inc(&rdma_stat_sq_poll); ++ atomic_inc_unchecked(&rdma_stat_sq_poll); + while ((ret = ib_poll_cq(cq, 1, &wc)) > 0) { + if (wc.status != IB_WC_SUCCESS) + /* Close the transport */ +@@ -404,7 +404,7 @@ static void sq_cq_reap(struct svcxprt_rdma *xprt) + } + + if (ctxt) +- atomic_inc(&rdma_stat_sq_prod); ++ atomic_inc_unchecked(&rdma_stat_sq_prod); + } + + static void sq_comp_handler(struct ib_cq *cq, void *cq_context) +@@ -1266,7 +1266,7 @@ int svc_rdma_send(struct svcxprt_rdma *xprt, struct ib_send_wr *wr) + spin_lock_bh(&xprt->sc_lock); + if (xprt->sc_sq_depth < atomic_read(&xprt->sc_sq_count) + wr_count) { + spin_unlock_bh(&xprt->sc_lock); +- atomic_inc(&rdma_stat_sq_starve); ++ atomic_inc_unchecked(&rdma_stat_sq_starve); + + /* See if we can opportunistically reap SQ WR to make room */ + sq_cq_reap(xprt); +diff --git a/net/sysctl_net.c b/net/sysctl_net.c +index c3e65ae..f512a2b 100644 +--- a/net/sysctl_net.c ++++ b/net/sysctl_net.c +@@ -47,7 +47,7 @@ static int net_ctl_permissions(struct ctl_table_root *root, + struct ctl_table *table) + { + /* Allow network administrator to have same access as root. */ +- if (capable(CAP_NET_ADMIN)) { ++ if (capable_nolog(CAP_NET_ADMIN)) { + int mode = (table->mode >> 6) & 7; + return (mode << 6) | (mode << 3) | mode; + } +diff --git a/net/tipc/link.c b/net/tipc/link.c +index b4b9b30..5b62131 100644 +--- a/net/tipc/link.c ++++ b/net/tipc/link.c +@@ -1203,7 +1203,7 @@ static int link_send_sections_long(struct tipc_port *sender, + struct tipc_msg fragm_hdr; + struct sk_buff *buf, *buf_chain, *prev; + u32 fragm_crs, fragm_rest, hsz, sect_rest; +- const unchar *sect_crs; ++ const unchar __user *sect_crs; + int curr_sect; + u32 fragm_no; + +@@ -1247,7 +1247,7 @@ again: + + if (!sect_rest) { + sect_rest = msg_sect[++curr_sect].iov_len; +- sect_crs = (const unchar *)msg_sect[curr_sect].iov_base; ++ sect_crs = (const unchar __user *)msg_sect[curr_sect].iov_base; + } + + if (sect_rest < fragm_rest) +@@ -1266,7 +1266,7 @@ error: + } + } else + skb_copy_to_linear_data_offset(buf, fragm_crs, +- sect_crs, sz); ++ (const void __force_kernel *)sect_crs, sz); + sect_crs += sz; + sect_rest -= sz; + fragm_crs += sz; +diff --git a/net/tipc/msg.c b/net/tipc/msg.c +index e3afe16..333ea83 100644 +--- a/net/tipc/msg.c ++++ b/net/tipc/msg.c +@@ -99,7 +99,7 @@ int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect, + msg_sect[cnt].iov_len); + else + skb_copy_to_linear_data_offset(*buf, pos, +- msg_sect[cnt].iov_base, ++ (const void __force_kernel *)msg_sect[cnt].iov_base, + msg_sect[cnt].iov_len); + pos += msg_sect[cnt].iov_len; + } +diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c +index b2964e9..fdf2e27 100644 +--- a/net/tipc/subscr.c ++++ b/net/tipc/subscr.c +@@ -101,7 +101,7 @@ static void subscr_send_event(struct tipc_subscription *sub, + { + struct iovec msg_sect; + +- msg_sect.iov_base = (void *)&sub->evt; ++ msg_sect.iov_base = (void __force_user *)&sub->evt; + msg_sect.iov_len = sizeof(struct tipc_event); + + sub->evt.event = htohl(event, sub->swap); +diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c +index d510353..26c8a32 100644 +--- a/net/unix/af_unix.c ++++ b/net/unix/af_unix.c +@@ -779,6 +779,12 @@ static struct sock *unix_find_other(struct net *net, + err = -ECONNREFUSED; + if (!S_ISSOCK(inode->i_mode)) + goto put_fail; ++ ++ if (!gr_acl_handle_unix(path.dentry, path.mnt)) { ++ err = -EACCES; ++ goto put_fail; ++ } ++ + u = unix_find_socket_byinode(inode); + if (!u) + goto put_fail; +@@ -799,6 +805,13 @@ static struct sock *unix_find_other(struct net *net, + if (u) { + struct dentry *dentry; + dentry = unix_sk(u)->path.dentry; ++ ++ if (!gr_handle_chroot_unix(pid_vnr(u->sk_peer_pid))) { ++ err = -EPERM; ++ sock_put(u); ++ goto fail; ++ } ++ + if (dentry) + touch_atime(&unix_sk(u)->path); + } else +@@ -881,11 +894,18 @@ static int unix_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) + err = security_path_mknod(&path, dentry, mode, 0); + if (err) + goto out_mknod_drop_write; ++ if (!gr_acl_handle_mknod(dentry, path.dentry, path.mnt, mode)) { ++ err = -EACCES; ++ goto out_mknod_drop_write; ++ } + err = vfs_mknod(path.dentry->d_inode, dentry, mode, 0); + out_mknod_drop_write: + mnt_drop_write(path.mnt); + if (err) + goto out_mknod_dput; ++ ++ gr_handle_create(dentry, path.mnt); ++ + mutex_unlock(&path.dentry->d_inode->i_mutex); + dput(path.dentry); + path.dentry = dentry; +diff --git a/net/wireless/core.h b/net/wireless/core.h +index 3ac2dd0..fbe533e 100644 +--- a/net/wireless/core.h ++++ b/net/wireless/core.h +@@ -27,7 +27,7 @@ struct cfg80211_registered_device { + struct mutex mtx; + + /* rfkill support */ +- struct rfkill_ops rfkill_ops; ++ rfkill_ops_no_const rfkill_ops; + struct rfkill *rfkill; + struct work_struct rfkill_sync; + +diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c +index af648e0..6185d3a 100644 +--- a/net/wireless/wext-core.c ++++ b/net/wireless/wext-core.c +@@ -747,8 +747,7 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd, + */ + + /* Support for very large requests */ +- if ((descr->flags & IW_DESCR_FLAG_NOMAX) && +- (user_length > descr->max_tokens)) { ++ if (user_length > descr->max_tokens) { + /* Allow userspace to GET more than max so + * we can support any size GET requests. + * There is still a limit : -ENOMEM. +@@ -787,22 +786,6 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd, + } + } + +- if (IW_IS_GET(cmd) && !(descr->flags & IW_DESCR_FLAG_NOMAX)) { +- /* +- * If this is a GET, but not NOMAX, it means that the extra +- * data is not bounded by userspace, but by max_tokens. Thus +- * set the length to max_tokens. This matches the extra data +- * allocation. +- * The driver should fill it with the number of tokens it +- * provided, and it may check iwp->length rather than having +- * knowledge of max_tokens. If the driver doesn't change the +- * iwp->length, this ioctl just copies back max_token tokens +- * filled with zeroes. Hopefully the driver isn't claiming +- * them to be valid data. +- */ +- iwp->length = descr->max_tokens; +- } +- + err = handler(dev, info, (union iwreq_data *) iwp, extra); + + iwp->length += essid_compat; +diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c +index a15d2a0..12142af 100644 +--- a/net/xfrm/xfrm_policy.c ++++ b/net/xfrm/xfrm_policy.c +@@ -299,7 +299,7 @@ static void xfrm_policy_kill(struct xfrm_policy *policy) + { + policy->walk.dead = 1; + +- atomic_inc(&policy->genid); ++ atomic_inc_unchecked(&policy->genid); + + if (del_timer(&policy->timer)) + xfrm_pol_put(policy); +@@ -583,7 +583,7 @@ int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl) + hlist_add_head(&policy->bydst, chain); + xfrm_pol_hold(policy); + net->xfrm.policy_count[dir]++; +- atomic_inc(&flow_cache_genid); ++ atomic_inc_unchecked(&flow_cache_genid); + if (delpol) + __xfrm_policy_unlink(delpol, dir); + policy->index = delpol ? delpol->index : xfrm_gen_index(net, dir); +@@ -1530,7 +1530,7 @@ free_dst: + goto out; + } + +-static int inline ++static inline int + xfrm_dst_alloc_copy(void **target, const void *src, int size) + { + if (!*target) { +@@ -1542,7 +1542,7 @@ xfrm_dst_alloc_copy(void **target, const void *src, int size) + return 0; + } + +-static int inline ++static inline int + xfrm_dst_update_parent(struct dst_entry *dst, const struct xfrm_selector *sel) + { + #ifdef CONFIG_XFRM_SUB_POLICY +@@ -1554,7 +1554,7 @@ xfrm_dst_update_parent(struct dst_entry *dst, const struct xfrm_selector *sel) + #endif + } + +-static int inline ++static inline int + xfrm_dst_update_origin(struct dst_entry *dst, const struct flowi *fl) + { + #ifdef CONFIG_XFRM_SUB_POLICY +@@ -1648,7 +1648,7 @@ xfrm_resolve_and_create_bundle(struct xfrm_policy **pols, int num_pols, + + xdst->num_pols = num_pols; + memcpy(xdst->pols, pols, sizeof(struct xfrm_policy*) * num_pols); +- xdst->policy_genid = atomic_read(&pols[0]->genid); ++ xdst->policy_genid = atomic_read_unchecked(&pols[0]->genid); + + return xdst; + } +@@ -2348,7 +2348,7 @@ static int xfrm_bundle_ok(struct xfrm_dst *first) + if (xdst->xfrm_genid != dst->xfrm->genid) + return 0; + if (xdst->num_pols > 0 && +- xdst->policy_genid != atomic_read(&xdst->pols[0]->genid)) ++ xdst->policy_genid != atomic_read_unchecked(&xdst->pols[0]->genid)) + return 0; + + mtu = dst_mtu(dst->child); +@@ -2885,7 +2885,7 @@ static int xfrm_policy_migrate(struct xfrm_policy *pol, + sizeof(pol->xfrm_vec[i].saddr)); + pol->xfrm_vec[i].encap_family = mp->new_family; + /* flush bundles */ +- atomic_inc(&pol->genid); ++ atomic_inc_unchecked(&pol->genid); + } + } + +diff --git a/scripts/Makefile.build b/scripts/Makefile.build +index ff1720d..ed8475e 100644 +--- a/scripts/Makefile.build ++++ b/scripts/Makefile.build +@@ -111,7 +111,7 @@ endif + endif + + # Do not include host rules unless needed +-ifneq ($(hostprogs-y)$(hostprogs-m),) ++ifneq ($(hostprogs-y)$(hostprogs-m)$(hostlibs-y)$(hostlibs-m)$(hostcxxlibs-y)$(hostcxxlibs-m),) + include scripts/Makefile.host + endif + +diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean +index 686cb0d..9d653bf 100644 +--- a/scripts/Makefile.clean ++++ b/scripts/Makefile.clean +@@ -43,7 +43,8 @@ subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn)) + __clean-files := $(extra-y) $(always) \ + $(targets) $(clean-files) \ + $(host-progs) \ +- $(hostprogs-y) $(hostprogs-m) $(hostprogs-) ++ $(hostprogs-y) $(hostprogs-m) $(hostprogs-) \ ++ $(hostlibs-y) $(hostlibs-m) $(hostlibs-) + + __clean-files := $(filter-out $(no-clean-files), $(__clean-files)) + +diff --git a/scripts/Makefile.host b/scripts/Makefile.host +index 1ac414f..38575f7 100644 +--- a/scripts/Makefile.host ++++ b/scripts/Makefile.host +@@ -31,6 +31,8 @@ + # Note: Shared libraries consisting of C++ files are not supported + + __hostprogs := $(sort $(hostprogs-y) $(hostprogs-m)) ++__hostlibs := $(sort $(hostlibs-y) $(hostlibs-m)) ++__hostcxxlibs := $(sort $(hostcxxlibs-y) $(hostcxxlibs-m)) + + # C code + # Executables compiled from a single .c file +@@ -54,11 +56,15 @@ host-cxxobjs := $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs))) + # Shared libaries (only .c supported) + # Shared libraries (.so) - all .so files referenced in "xxx-objs" + host-cshlib := $(sort $(filter %.so, $(host-cobjs))) ++host-cshlib += $(sort $(filter %.so, $(__hostlibs))) ++host-cxxshlib := $(sort $(filter %.so, $(__hostcxxlibs))) + # Remove .so files from "xxx-objs" + host-cobjs := $(filter-out %.so,$(host-cobjs)) ++host-cxxobjs := $(filter-out %.so,$(host-cxxobjs)) + +-#Object (.o) files used by the shared libaries ++# Object (.o) files used by the shared libaries + host-cshobjs := $(sort $(foreach m,$(host-cshlib),$($(m:.so=-objs)))) ++host-cxxshobjs := $(sort $(foreach m,$(host-cxxshlib),$($(m:.so=-objs)))) + + # output directory for programs/.o files + # hostprogs-y := tools/build may have been specified. Retrieve directory +@@ -82,7 +88,9 @@ host-cobjs := $(addprefix $(obj)/,$(host-cobjs)) + host-cxxmulti := $(addprefix $(obj)/,$(host-cxxmulti)) + host-cxxobjs := $(addprefix $(obj)/,$(host-cxxobjs)) + host-cshlib := $(addprefix $(obj)/,$(host-cshlib)) ++host-cxxshlib := $(addprefix $(obj)/,$(host-cxxshlib)) + host-cshobjs := $(addprefix $(obj)/,$(host-cshobjs)) ++host-cxxshobjs := $(addprefix $(obj)/,$(host-cxxshobjs)) + host-objdirs := $(addprefix $(obj)/,$(host-objdirs)) + + obj-dirs += $(host-objdirs) +@@ -156,6 +164,13 @@ quiet_cmd_host-cshobjs = HOSTCC -fPIC $@ + $(host-cshobjs): $(obj)/%.o: $(src)/%.c FORCE + $(call if_changed_dep,host-cshobjs) + ++# Compile .c file, create position independent .o file ++# host-cxxshobjs -> .o ++quiet_cmd_host-cxxshobjs = HOSTCXX -fPIC $@ ++ cmd_host-cxxshobjs = $(HOSTCXX) $(hostcxx_flags) -fPIC -c -o $@ $< ++$(host-cxxshobjs): $(obj)/%.o: $(src)/%.c FORCE ++ $(call if_changed_dep,host-cxxshobjs) ++ + # Link a shared library, based on position independent .o files + # *.o -> .so shared library (host-cshlib) + quiet_cmd_host-cshlib = HOSTLLD -shared $@ +@@ -165,6 +180,15 @@ quiet_cmd_host-cshlib = HOSTLLD -shared $@ + $(host-cshlib): $(obj)/%: $(host-cshobjs) FORCE + $(call if_changed,host-cshlib) + ++# Link a shared library, based on position independent .o files ++# *.o -> .so shared library (host-cxxshlib) ++quiet_cmd_host-cxxshlib = HOSTLLD -shared $@ ++ cmd_host-cxxshlib = $(HOSTCXX) $(HOSTLDFLAGS) -shared -o $@ \ ++ $(addprefix $(obj)/,$($(@F:.so=-objs))) \ ++ $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F)) ++$(host-cxxshlib): $(obj)/%: $(host-cxxshobjs) FORCE ++ $(call if_changed,host-cxxshlib) ++ + targets += $(host-csingle) $(host-cmulti) $(host-cobjs)\ +- $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) ++ $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) $(host-cxxshlib) $(host-cxxshobjs) + +diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c +index cb1f50c..cef2a7c 100644 +--- a/scripts/basic/fixdep.c ++++ b/scripts/basic/fixdep.c +@@ -161,7 +161,7 @@ static unsigned int strhash(const char *str, unsigned int sz) + /* + * Lookup a value in the configuration string. + */ +-static int is_defined_config(const char *name, int len, unsigned int hash) ++static int is_defined_config(const char *name, unsigned int len, unsigned int hash) + { + struct item *aux; + +@@ -211,10 +211,10 @@ static void clear_config(void) + /* + * Record the use of a CONFIG_* word. + */ +-static void use_config(const char *m, int slen) ++static void use_config(const char *m, unsigned int slen) + { + unsigned int hash = strhash(m, slen); +- int c, i; ++ unsigned int c, i; + + if (is_defined_config(m, slen, hash)) + return; +@@ -235,9 +235,9 @@ static void use_config(const char *m, int slen) + + static void parse_config_file(const char *map, size_t len) + { +- const int *end = (const int *) (map + len); ++ const unsigned int *end = (const unsigned int *) (map + len); + /* start at +1, so that p can never be < map */ +- const int *m = (const int *) map + 1; ++ const unsigned int *m = (const unsigned int *) map + 1; + const char *p, *q; + + for (; m < end; m++) { +@@ -406,7 +406,7 @@ static void print_deps(void) + static void traps(void) + { + static char test[] __attribute__((aligned(sizeof(int)))) = "CONF"; +- int *p = (int *)test; ++ unsigned int *p = (unsigned int *)test; + + if (*p != INT_CONF) { + fprintf(stderr, "fixdep: sizeof(int) != 4 or wrong endianess? %#x\n", +diff --git a/scripts/gcc-plugin.sh b/scripts/gcc-plugin.sh +new file mode 100644 +index 0000000..008ac1a +--- /dev/null ++++ b/scripts/gcc-plugin.sh +@@ -0,0 +1,17 @@ ++#!/bin/bash ++plugincc=`$1 -x c -shared - -o /dev/null -I\`$3 -print-file-name=plugin\`/include 2>&1 <<EOF ++#include "gcc-plugin.h" ++#include "tree.h" ++#include "tm.h" ++#include "rtl.h" ++#ifdef ENABLE_BUILD_WITH_CXX ++#warning $2 ++#else ++#warning $1 ++#endif ++EOF` ++if [ $? -eq 0 ] ++then ++ [[ "$plugincc" =~ "$1" ]] && echo "$1" ++ [[ "$plugincc" =~ "$2" ]] && echo "$2" ++fi +diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c +index 44ddaa5..a3119bd 100644 +--- a/scripts/mod/file2alias.c ++++ b/scripts/mod/file2alias.c +@@ -128,7 +128,7 @@ static void device_id_check(const char *modname, const char *device_id, + unsigned long size, unsigned long id_size, + void *symval) + { +- int i; ++ unsigned int i; + + if (size % id_size || size < id_size) { + if (cross_build != 0) +@@ -158,7 +158,7 @@ static void device_id_check(const char *modname, const char *device_id, + /* USB is special because the bcdDevice can be matched against a numeric range */ + /* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipN" */ + static void do_usb_entry(struct usb_device_id *id, +- unsigned int bcdDevice_initial, int bcdDevice_initial_digits, ++ unsigned int bcdDevice_initial, unsigned int bcdDevice_initial_digits, + unsigned char range_lo, unsigned char range_hi, + unsigned char max, struct module *mod) + { +@@ -259,7 +259,7 @@ static void do_usb_entry_multi(struct usb_device_id *id, struct module *mod) + { + unsigned int devlo, devhi; + unsigned char chi, clo, max; +- int ndigits; ++ unsigned int ndigits; + + id->match_flags = TO_NATIVE(id->match_flags); + id->idVendor = TO_NATIVE(id->idVendor); +@@ -501,7 +501,7 @@ static void do_pnp_device_entry(void *symval, unsigned long size, + for (i = 0; i < count; i++) { + const char *id = (char *)devs[i].id; + char acpi_id[sizeof(devs[0].id)]; +- int j; ++ unsigned int j; + + buf_printf(&mod->dev_table_buf, + "MODULE_ALIAS(\"pnp:d%s*\");\n", id); +@@ -531,7 +531,7 @@ static void do_pnp_card_entries(void *symval, unsigned long size, + + for (j = 0; j < PNP_MAX_DEVICES; j++) { + const char *id = (char *)card->devs[j].id; +- int i2, j2; ++ unsigned int i2, j2; + int dup = 0; + + if (!id[0]) +@@ -557,7 +557,7 @@ static void do_pnp_card_entries(void *symval, unsigned long size, + /* add an individual alias for every device entry */ + if (!dup) { + char acpi_id[sizeof(card->devs[0].id)]; +- int k; ++ unsigned int k; + + buf_printf(&mod->dev_table_buf, + "MODULE_ALIAS(\"pnp:d%s*\");\n", id); +@@ -882,7 +882,7 @@ static void dmi_ascii_filter(char *d, const char *s) + static int do_dmi_entry(const char *filename, struct dmi_system_id *id, + char *alias) + { +- int i, j; ++ unsigned int i, j; + + sprintf(alias, "dmi*"); + +diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c +index c4e7d15..dad16c1 100644 +--- a/scripts/mod/modpost.c ++++ b/scripts/mod/modpost.c +@@ -922,6 +922,7 @@ enum mismatch { + ANY_INIT_TO_ANY_EXIT, + ANY_EXIT_TO_ANY_INIT, + EXPORT_TO_INIT_EXIT, ++ DATA_TO_TEXT + }; + + struct sectioncheck { +@@ -1030,6 +1031,12 @@ const struct sectioncheck sectioncheck[] = { + .tosec = { INIT_SECTIONS, EXIT_SECTIONS, NULL }, + .mismatch = EXPORT_TO_INIT_EXIT, + .symbol_white_list = { DEFAULT_SYMBOL_WHITE_LIST, NULL }, ++}, ++/* Do not reference code from writable data */ ++{ ++ .fromsec = { DATA_SECTIONS, NULL }, ++ .tosec = { TEXT_SECTIONS, NULL }, ++ .mismatch = DATA_TO_TEXT + } + }; + +@@ -1152,10 +1159,10 @@ static Elf_Sym *find_elf_symbol(struct elf_info *elf, Elf64_Sword addr, + continue; + if (ELF_ST_TYPE(sym->st_info) == STT_SECTION) + continue; +- if (sym->st_value == addr) +- return sym; + /* Find a symbol nearby - addr are maybe negative */ + d = sym->st_value - addr; ++ if (d == 0) ++ return sym; + if (d < 0) + d = addr - sym->st_value; + if (d < distance) { +@@ -1434,6 +1441,14 @@ static void report_sec_mismatch(const char *modname, + tosym, prl_to, prl_to, tosym); + free(prl_to); + break; ++ case DATA_TO_TEXT: ++#if 0 ++ fprintf(stderr, ++ "The %s %s:%s references\n" ++ "the %s %s:%s%s\n", ++ from, fromsec, fromsym, to, tosec, tosym, to_p); ++#endif ++ break; + } + fprintf(stderr, "\n"); + } +@@ -1668,7 +1683,7 @@ static void section_rel(const char *modname, struct elf_info *elf, + static void check_sec_ref(struct module *mod, const char *modname, + struct elf_info *elf) + { +- int i; ++ unsigned int i; + Elf_Shdr *sechdrs = elf->sechdrs; + + /* Walk through all sections */ +@@ -1766,7 +1781,7 @@ void __attribute__((format(printf, 2, 3))) buf_printf(struct buffer *buf, + va_end(ap); + } + +-void buf_write(struct buffer *buf, const char *s, int len) ++void buf_write(struct buffer *buf, const char *s, unsigned int len) + { + if (buf->size - buf->pos < len) { + buf->size += len + SZ; +@@ -1984,7 +1999,7 @@ static void write_if_changed(struct buffer *b, const char *fname) + if (fstat(fileno(file), &st) < 0) + goto close_write; + +- if (st.st_size != b->pos) ++ if (st.st_size != (off_t)b->pos) + goto close_write; + + tmp = NOFAIL(malloc(b->pos)); +diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h +index 51207e4..f7d603d 100644 +--- a/scripts/mod/modpost.h ++++ b/scripts/mod/modpost.h +@@ -92,15 +92,15 @@ void *do_nofail(void *ptr, const char *expr); + + struct buffer { + char *p; +- int pos; +- int size; ++ unsigned int pos; ++ unsigned int size; + }; + + void __attribute__((format(printf, 2, 3))) + buf_printf(struct buffer *buf, const char *fmt, ...); + + void +-buf_write(struct buffer *buf, const char *s, int len); ++buf_write(struct buffer *buf, const char *s, unsigned int len); + + struct module { + struct module *next; +diff --git a/scripts/mod/sumversion.c b/scripts/mod/sumversion.c +index 9dfcd6d..099068e 100644 +--- a/scripts/mod/sumversion.c ++++ b/scripts/mod/sumversion.c +@@ -470,7 +470,7 @@ static void write_version(const char *filename, const char *sum, + goto out; + } + +- if (write(fd, sum, strlen(sum)+1) != strlen(sum)+1) { ++ if (write(fd, sum, strlen(sum)+1) != (ssize_t)strlen(sum)+1) { + warn("writing sum in %s failed: %s\n", + filename, strerror(errno)); + goto out; +diff --git a/scripts/pnmtologo.c b/scripts/pnmtologo.c +index 5c11312..72742b5 100644 +--- a/scripts/pnmtologo.c ++++ b/scripts/pnmtologo.c +@@ -237,14 +237,14 @@ static void write_header(void) + fprintf(out, " * Linux logo %s\n", logoname); + fputs(" */\n\n", out); + fputs("#include <linux/linux_logo.h>\n\n", out); +- fprintf(out, "static unsigned char %s_data[] __initdata = {\n", ++ fprintf(out, "static unsigned char %s_data[] = {\n", + logoname); + } + + static void write_footer(void) + { + fputs("\n};\n\n", out); +- fprintf(out, "const struct linux_logo %s __initconst = {\n", logoname); ++ fprintf(out, "const struct linux_logo %s = {\n", logoname); + fprintf(out, "\t.type\t\t= %s,\n", logo_types[logo_type]); + fprintf(out, "\t.width\t\t= %d,\n", logo_width); + fprintf(out, "\t.height\t\t= %d,\n", logo_height); +@@ -374,7 +374,7 @@ static void write_logo_clut224(void) + fputs("\n};\n\n", out); + + /* write logo clut */ +- fprintf(out, "static unsigned char %s_clut[] __initdata = {\n", ++ fprintf(out, "static unsigned char %s_clut[] = {\n", + logoname); + write_hex_cnt = 0; + for (i = 0; i < logo_clutsize; i++) { +diff --git a/security/Kconfig b/security/Kconfig +index ccc61f8..5e68d73 100644 +--- a/security/Kconfig ++++ b/security/Kconfig +@@ -4,6 +4,875 @@ + + menu "Security options" + ++menu "Grsecurity" ++ ++ config ARCH_TRACK_EXEC_LIMIT ++ bool ++ ++ config PAX_KERNEXEC_PLUGIN ++ bool ++ ++ config PAX_PER_CPU_PGD ++ bool ++ ++ config TASK_SIZE_MAX_SHIFT ++ int ++ depends on X86_64 ++ default 47 if !PAX_PER_CPU_PGD ++ default 42 if PAX_PER_CPU_PGD ++ ++ config PAX_ENABLE_PAE ++ bool ++ default y if (X86_32 && (MPENTIUM4 || MK8 || MPSC || MCORE2 || MATOM)) ++ ++ config PAX_USERCOPY_SLABS ++ bool ++ ++config GRKERNSEC ++ bool "Grsecurity" ++ select CRYPTO ++ select CRYPTO_SHA256 ++ select STOP_MACHINE ++ help ++ If you say Y here, you will be able to configure many features ++ that will enhance the security of your system. It is highly ++ recommended that you say Y here and read through the help ++ for each option so that you fully understand the features and ++ can evaluate their usefulness for your machine. ++ ++choice ++ prompt "Configuration Method" ++ depends on GRKERNSEC ++ default GRKERNSEC_CONFIG_CUSTOM ++ help ++ ++config GRKERNSEC_CONFIG_AUTO ++ bool "Automatic" ++ help ++ If you choose this configuration method, you'll be able to answer a small ++ number of simple questions about how you plan to use this kernel. ++ The settings of grsecurity and PaX will be automatically configured for ++ the highest commonly-used settings within the provided constraints. ++ ++ If you require additional configuration, custom changes can still be made ++ from the "custom configuration" menu. ++ ++config GRKERNSEC_CONFIG_CUSTOM ++ bool "Custom" ++ help ++ If you choose this configuration method, you'll be able to configure all ++ grsecurity and PaX settings manually. Via this method, no options are ++ automatically enabled. ++ ++endchoice ++ ++choice ++ prompt "Usage Type" ++ depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO) ++ default GRKERNSEC_CONFIG_SERVER ++ help ++ ++config GRKERNSEC_CONFIG_SERVER ++ bool "Server" ++ help ++ Choose this option if you plan to use this kernel on a server. ++ ++config GRKERNSEC_CONFIG_DESKTOP ++ bool "Desktop" ++ help ++ Choose this option if you plan to use this kernel on a desktop. ++ ++endchoice ++ ++choice ++ prompt "Virtualization Type" ++ depends on (GRKERNSEC && X86 && GRKERNSEC_CONFIG_AUTO) ++ default GRKERNSEC_CONFIG_VIRT_NONE ++ help ++ ++config GRKERNSEC_CONFIG_VIRT_NONE ++ bool "None" ++ help ++ Choose this option if this kernel will be run on bare metal. ++ ++config GRKERNSEC_CONFIG_VIRT_GUEST ++ bool "Guest" ++ help ++ Choose this option if this kernel will be run as a VM guest. ++ ++config GRKERNSEC_CONFIG_VIRT_HOST ++ bool "Host" ++ help ++ Choose this option if this kernel will be run as a VM host. ++ ++endchoice ++ ++choice ++ prompt "Virtualization Hardware" ++ depends on (GRKERNSEC && X86 && GRKERNSEC_CONFIG_AUTO && (GRKERNSEC_CONFIG_VIRT_GUEST || GRKERNSEC_CONFIG_VIRT_HOST)) ++ help ++ ++config GRKERNSEC_CONFIG_VIRT_EPT ++ bool "EPT/RVI Processor Support" ++ depends on X86 ++ help ++ Choose this option if your CPU supports the EPT or RVI features of 2nd-gen ++ hardware virtualization. This allows for additional kernel hardening protections ++ to operate without additional performance impact. ++ ++ To see if your Intel processor supports EPT, see: ++ http://ark.intel.com/Products/VirtualizationTechnology ++ (Most Core i3/5/7 support EPT) ++ ++ To see if your AMD processor supports RVI, see: ++ http://support.amd.com/us/kbarticles/Pages/GPU120AMDRVICPUsHyperVWin8.aspx ++ ++config GRKERNSEC_CONFIG_VIRT_SOFT ++ bool "First-gen/No Hardware Virtualization" ++ help ++ Choose this option if you use an Atom/Pentium/Core 2 processor that either doesn't ++ support hardware virtualization or doesn't support the EPT/RVI extensions. ++ ++endchoice ++ ++choice ++ prompt "Virtualization Software" ++ depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO && (GRKERNSEC_CONFIG_VIRT_GUEST || GRKERNSEC_CONFIG_VIRT_HOST)) ++ help ++ ++config GRKERNSEC_CONFIG_VIRT_XEN ++ bool "Xen" ++ help ++ Choose this option if this kernel is running as a Xen guest or host. ++ ++config GRKERNSEC_CONFIG_VIRT_VMWARE ++ bool "VMWare" ++ help ++ Choose this option if this kernel is running as a VMWare guest or host. ++ ++config GRKERNSEC_CONFIG_VIRT_KVM ++ bool "KVM" ++ help ++ Choose this option if this kernel is running as a KVM guest or host. ++ ++config GRKERNSEC_CONFIG_VIRT_VIRTUALBOX ++ bool "VirtualBox" ++ help ++ Choose this option if this kernel is running as a VirtualBox guest or host. ++ ++endchoice ++ ++choice ++ prompt "Required Priorities" ++ depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO) ++ default GRKERNSEC_CONFIG_PRIORITY_PERF ++ help ++ ++config GRKERNSEC_CONFIG_PRIORITY_PERF ++ bool "Performance" ++ help ++ Choose this option if performance is of highest priority for this deployment ++ of grsecurity. Features like UDEREF on a 64bit kernel, kernel stack clearing, ++ and freed memory sanitizing will be disabled. ++ ++config GRKERNSEC_CONFIG_PRIORITY_SECURITY ++ bool "Security" ++ help ++ Choose this option if security is of highest priority for this deployment of ++ grsecurity. UDEREF, kernel stack clearing, and freed memory sanitizing will ++ be enabled for this kernel. In a worst-case scenario, these features can ++ introduce a 20% performance hit (UDEREF on x64 contributing half of this hit). ++ ++endchoice ++ ++menu "Default Special Groups" ++depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO) ++ ++config GRKERNSEC_PROC_GID ++ int "GID exempted from /proc restrictions" ++ default 1001 ++ help ++ Setting this GID determines which group will be exempted from ++ grsecurity's /proc restrictions, allowing users of the specified ++ group to view network statistics and the existence of other users' ++ processes on the system. ++ ++config GRKERNSEC_TPE_GID ++ int "GID for untrusted users" ++ depends on GRKERNSEC_CONFIG_SERVER ++ default 1005 ++ help ++ Setting this GID determines which group untrusted users should ++ be added to. These users will be placed under grsecurity's Trusted Path ++ Execution mechanism, preventing them from executing their own binaries. ++ The users will only be able to execute binaries in directories owned and ++ writable only by the root user. ++ ++config GRKERNSEC_SYMLINKOWN_GID ++ int "GID for users with kernel-enforced SymlinksIfOwnerMatch" ++ depends on GRKERNSEC_CONFIG_SERVER ++ default 1006 ++ help ++ Setting this GID determines what group kernel-enforced ++ SymlinksIfOwnerMatch will be enabled for. If the sysctl option ++ is enabled, a sysctl option with name "symlinkown_gid" is created. ++ ++ ++endmenu ++ ++menu "Customize Configuration" ++depends on GRKERNSEC ++ ++menu "PaX" ++ ++config PAX ++ bool "Enable various PaX features" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on GRKERNSEC && (ALPHA || ARM || AVR32 || IA64 || MIPS || PARISC || PPC || SPARC || X86) ++ help ++ This allows you to enable various PaX features. PaX adds ++ intrusion prevention mechanisms to the kernel that reduce ++ the risks posed by exploitable memory corruption bugs. ++ ++menu "PaX Control" ++ depends on PAX ++ ++config PAX_SOFTMODE ++ bool 'Support soft mode' ++ help ++ Enabling this option will allow you to run PaX in soft mode, that ++ is, PaX features will not be enforced by default, only on executables ++ marked explicitly. You must also enable PT_PAX_FLAGS or XATTR_PAX_FLAGS ++ support as they are the only way to mark executables for soft mode use. ++ ++ Soft mode can be activated by using the "pax_softmode=1" kernel command ++ line option on boot. Furthermore you can control various PaX features ++ at runtime via the entries in /proc/sys/kernel/pax. ++ ++config PAX_EI_PAX ++ bool 'Use legacy ELF header marking' ++ default y if GRKERNSEC_CONFIG_AUTO ++ help ++ Enabling this option will allow you to control PaX features on ++ a per executable basis via the 'chpax' utility available at ++ http://pax.grsecurity.net/. The control flags will be read from ++ an otherwise reserved part of the ELF header. This marking has ++ numerous drawbacks (no support for soft-mode, toolchain does not ++ know about the non-standard use of the ELF header) therefore it ++ has been deprecated in favour of PT_PAX_FLAGS and XATTR_PAX_FLAGS ++ support. ++ ++ Note that if you enable PT_PAX_FLAGS or XATTR_PAX_FLAGS marking ++ support as well, they will override the legacy EI_PAX marks. ++ ++ If you enable none of the marking options then all applications ++ will run with PaX enabled on them by default. ++ ++config PAX_PT_PAX_FLAGS ++ bool 'Use ELF program header marking' ++ default y if GRKERNSEC_CONFIG_AUTO ++ help ++ Enabling this option will allow you to control PaX features on ++ a per executable basis via the 'paxctl' utility available at ++ http://pax.grsecurity.net/. The control flags will be read from ++ a PaX specific ELF program header (PT_PAX_FLAGS). This marking ++ has the benefits of supporting both soft mode and being fully ++ integrated into the toolchain (the binutils patch is available ++ from http://pax.grsecurity.net). ++ ++ Note that if you enable the legacy EI_PAX marking support as well, ++ the EI_PAX marks will be overridden by the PT_PAX_FLAGS marks. ++ ++ If you enable both PT_PAX_FLAGS and XATTR_PAX_FLAGS support then you ++ must make sure that the marks are the same if a binary has both marks. ++ ++ If you enable none of the marking options then all applications ++ will run with PaX enabled on them by default. ++ ++config PAX_XATTR_PAX_FLAGS ++ bool 'Use filesystem extended attributes marking' ++ default y if GRKERNSEC_CONFIG_AUTO ++ select CIFS_XATTR if CIFS ++ select EXT2_FS_XATTR if EXT2_FS ++ select EXT3_FS_XATTR if EXT3_FS ++ select EXT4_FS_XATTR if EXT4_FS ++ select JFFS2_FS_XATTR if JFFS2_FS ++ select REISERFS_FS_XATTR if REISERFS_FS ++ select SQUASHFS_XATTR if SQUASHFS ++ select TMPFS_XATTR if TMPFS ++ select UBIFS_FS_XATTR if UBIFS_FS ++ help ++ Enabling this option will allow you to control PaX features on ++ a per executable basis via the 'setfattr' utility. The control ++ flags will be read from the user.pax.flags extended attribute of ++ the file. This marking has the benefit of supporting binary-only ++ applications that self-check themselves (e.g., skype) and would ++ not tolerate chpax/paxctl changes. The main drawback is that ++ extended attributes are not supported by some filesystems (e.g., ++ isofs, udf, vfat) so copying files through such filesystems will ++ lose the extended attributes and these PaX markings. ++ ++ Note that if you enable the legacy EI_PAX marking support as well, ++ the EI_PAX marks will be overridden by the XATTR_PAX_FLAGS marks. ++ ++ If you enable both PT_PAX_FLAGS and XATTR_PAX_FLAGS support then you ++ must make sure that the marks are the same if a binary has both marks. ++ ++ If you enable none of the marking options then all applications ++ will run with PaX enabled on them by default. ++ ++choice ++ prompt 'MAC system integration' ++ default PAX_HAVE_ACL_FLAGS ++ help ++ Mandatory Access Control systems have the option of controlling ++ PaX flags on a per executable basis, choose the method supported ++ by your particular system. ++ ++ - "none": if your MAC system does not interact with PaX, ++ - "direct": if your MAC system defines pax_set_initial_flags() itself, ++ - "hook": if your MAC system uses the pax_set_initial_flags_func callback. ++ ++ NOTE: this option is for developers/integrators only. ++ ++ config PAX_NO_ACL_FLAGS ++ bool 'none' ++ ++ config PAX_HAVE_ACL_FLAGS ++ bool 'direct' ++ ++ config PAX_HOOK_ACL_FLAGS ++ bool 'hook' ++endchoice ++ ++endmenu ++ ++menu "Non-executable pages" ++ depends on PAX ++ ++config PAX_NOEXEC ++ bool "Enforce non-executable pages" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on ALPHA || (ARM && (CPU_V6 || CPU_V7)) || IA64 || MIPS || PARISC || PPC || S390 || SPARC || X86 ++ help ++ By design some architectures do not allow for protecting memory ++ pages against execution or even if they do, Linux does not make ++ use of this feature. In practice this means that if a page is ++ readable (such as the stack or heap) it is also executable. ++ ++ There is a well known exploit technique that makes use of this ++ fact and a common programming mistake where an attacker can ++ introduce code of his choice somewhere in the attacked program's ++ memory (typically the stack or the heap) and then execute it. ++ ++ If the attacked program was running with different (typically ++ higher) privileges than that of the attacker, then he can elevate ++ his own privilege level (e.g. get a root shell, write to files for ++ which he does not have write access to, etc). ++ ++ Enabling this option will let you choose from various features ++ that prevent the injection and execution of 'foreign' code in ++ a program. ++ ++ This will also break programs that rely on the old behaviour and ++ expect that dynamically allocated memory via the malloc() family ++ of functions is executable (which it is not). Notable examples ++ are the XFree86 4.x server, the java runtime and wine. ++ ++config PAX_PAGEEXEC ++ bool "Paging based non-executable pages" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on PAX_NOEXEC && (!X86_32 || M586 || M586TSC || M586MMX || M686 || MPENTIUMII || MPENTIUMIII || MPENTIUMM || MCORE2 || MATOM || MPENTIUM4 || MPSC || MK7 || MK8 || MWINCHIPC6 || MWINCHIP2 || MWINCHIP3D || MVIAC3_2 || MVIAC7) ++ select S390_SWITCH_AMODE if S390 ++ select S390_EXEC_PROTECT if S390 ++ select ARCH_TRACK_EXEC_LIMIT if X86_32 ++ help ++ This implementation is based on the paging feature of the CPU. ++ On i386 without hardware non-executable bit support there is a ++ variable but usually low performance impact, however on Intel's ++ P4 core based CPUs it is very high so you should not enable this ++ for kernels meant to be used on such CPUs. ++ ++ On alpha, avr32, ia64, parisc, sparc, sparc64, x86_64 and i386 ++ with hardware non-executable bit support there is no performance ++ impact, on ppc the impact is negligible. ++ ++ Note that several architectures require various emulations due to ++ badly designed userland ABIs, this will cause a performance impact ++ but will disappear as soon as userland is fixed. For example, ppc ++ userland MUST have been built with secure-plt by a recent toolchain. ++ ++config PAX_SEGMEXEC ++ bool "Segmentation based non-executable pages" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on PAX_NOEXEC && X86_32 ++ help ++ This implementation is based on the segmentation feature of the ++ CPU and has a very small performance impact, however applications ++ will be limited to a 1.5 GB address space instead of the normal ++ 3 GB. ++ ++config PAX_EMUTRAMP ++ bool "Emulate trampolines" if (PAX_PAGEEXEC || PAX_SEGMEXEC) && (PARISC || X86) ++ default y if PARISC ++ help ++ There are some programs and libraries that for one reason or ++ another attempt to execute special small code snippets from ++ non-executable memory pages. Most notable examples are the ++ signal handler return code generated by the kernel itself and ++ the GCC trampolines. ++ ++ If you enabled CONFIG_PAX_PAGEEXEC or CONFIG_PAX_SEGMEXEC then ++ such programs will no longer work under your kernel. ++ ++ As a remedy you can say Y here and use the 'chpax' or 'paxctl' ++ utilities to enable trampoline emulation for the affected programs ++ yet still have the protection provided by the non-executable pages. ++ ++ On parisc you MUST enable this option and EMUSIGRT as well, otherwise ++ your system will not even boot. ++ ++ Alternatively you can say N here and use the 'chpax' or 'paxctl' ++ utilities to disable CONFIG_PAX_PAGEEXEC and CONFIG_PAX_SEGMEXEC ++ for the affected files. ++ ++ NOTE: enabling this feature *may* open up a loophole in the ++ protection provided by non-executable pages that an attacker ++ could abuse. Therefore the best solution is to not have any ++ files on your system that would require this option. This can ++ be achieved by not using libc5 (which relies on the kernel ++ signal handler return code) and not using or rewriting programs ++ that make use of the nested function implementation of GCC. ++ Skilled users can just fix GCC itself so that it implements ++ nested function calls in a way that does not interfere with PaX. ++ ++config PAX_EMUSIGRT ++ bool "Automatically emulate sigreturn trampolines" ++ depends on PAX_EMUTRAMP && PARISC ++ default y ++ help ++ Enabling this option will have the kernel automatically detect ++ and emulate signal return trampolines executing on the stack ++ that would otherwise lead to task termination. ++ ++ This solution is intended as a temporary one for users with ++ legacy versions of libc (libc5, glibc 2.0, uClibc before 0.9.17, ++ Modula-3 runtime, etc) or executables linked to such, basically ++ everything that does not specify its own SA_RESTORER function in ++ normal executable memory like glibc 2.1+ does. ++ ++ On parisc you MUST enable this option, otherwise your system will ++ not even boot. ++ ++ NOTE: this feature cannot be disabled on a per executable basis ++ and since it *does* open up a loophole in the protection provided ++ by non-executable pages, the best solution is to not have any ++ files on your system that would require this option. ++ ++config PAX_MPROTECT ++ bool "Restrict mprotect()" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on (PAX_PAGEEXEC || PAX_SEGMEXEC) ++ help ++ Enabling this option will prevent programs from ++ - changing the executable status of memory pages that were ++ not originally created as executable, ++ - making read-only executable pages writable again, ++ - creating executable pages from anonymous memory, ++ - making read-only-after-relocations (RELRO) data pages writable again. ++ ++ You should say Y here to complete the protection provided by ++ the enforcement of non-executable pages. ++ ++ NOTE: you can use the 'chpax' or 'paxctl' utilities to control ++ this feature on a per file basis. ++ ++config PAX_MPROTECT_COMPAT ++ bool "Use legacy/compat protection demoting (read help)" ++ default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_DESKTOP) ++ depends on PAX_MPROTECT ++ help ++ The current implementation of PAX_MPROTECT denies RWX allocations/mprotects ++ by sending the proper error code to the application. For some broken ++ userland, this can cause problems with Python or other applications. The ++ current implementation however allows for applications like clamav to ++ detect if JIT compilation/execution is allowed and to fall back gracefully ++ to an interpreter-based mode if it does not. While we encourage everyone ++ to use the current implementation as-is and push upstream to fix broken ++ userland (note that the RWX logging option can assist with this), in some ++ environments this may not be possible. Having to disable MPROTECT ++ completely on certain binaries reduces the security benefit of PaX, ++ so this option is provided for those environments to revert to the old ++ behavior. ++ ++config PAX_ELFRELOCS ++ bool "Allow ELF text relocations (read help)" ++ depends on PAX_MPROTECT ++ default n ++ help ++ Non-executable pages and mprotect() restrictions are effective ++ in preventing the introduction of new executable code into an ++ attacked task's address space. There remain only two venues ++ for this kind of attack: if the attacker can execute already ++ existing code in the attacked task then he can either have it ++ create and mmap() a file containing his code or have it mmap() ++ an already existing ELF library that does not have position ++ independent code in it and use mprotect() on it to make it ++ writable and copy his code there. While protecting against ++ the former approach is beyond PaX, the latter can be prevented ++ by having only PIC ELF libraries on one's system (which do not ++ need to relocate their code). If you are sure this is your case, ++ as is the case with all modern Linux distributions, then leave ++ this option disabled. You should say 'n' here. ++ ++config PAX_ETEXECRELOCS ++ bool "Allow ELF ET_EXEC text relocations" ++ depends on PAX_MPROTECT && (ALPHA || IA64 || PARISC) ++ select PAX_ELFRELOCS ++ default y ++ help ++ On some architectures there are incorrectly created applications ++ that require text relocations and would not work without enabling ++ this option. If you are an alpha, ia64 or parisc user, you should ++ enable this option and disable it once you have made sure that ++ none of your applications need it. ++ ++config PAX_EMUPLT ++ bool "Automatically emulate ELF PLT" ++ depends on PAX_MPROTECT && (ALPHA || PARISC || SPARC) ++ default y ++ help ++ Enabling this option will have the kernel automatically detect ++ and emulate the Procedure Linkage Table entries in ELF files. ++ On some architectures such entries are in writable memory, and ++ become non-executable leading to task termination. Therefore ++ it is mandatory that you enable this option on alpha, parisc, ++ sparc and sparc64, otherwise your system would not even boot. ++ ++ NOTE: this feature *does* open up a loophole in the protection ++ provided by the non-executable pages, therefore the proper ++ solution is to modify the toolchain to produce a PLT that does ++ not need to be writable. ++ ++config PAX_DLRESOLVE ++ bool 'Emulate old glibc resolver stub' ++ depends on PAX_EMUPLT && SPARC ++ default n ++ help ++ This option is needed if userland has an old glibc (before 2.4) ++ that puts a 'save' instruction into the runtime generated resolver ++ stub that needs special emulation. ++ ++config PAX_KERNEXEC ++ bool "Enforce non-executable kernel pages" ++ default y if GRKERNSEC_CONFIG_AUTO && (GRKERNSEC_CONFIG_VIRT_NONE || (GRKERNSEC_CONFIG_VIRT_EPT && GRKERNSEC_CONFIG_VIRT_GUEST) || (GRKERNSEC_CONFIG_VIRT_EPT && GRKERNSEC_CONFIG_VIRT_KVM)) ++ depends on (PPC || X86) && (!X86_32 || X86_WP_WORKS_OK) && !XEN ++ select PAX_PER_CPU_PGD if X86_64 || (X86_32 && X86_PAE) ++ select PAX_KERNEXEC_PLUGIN if X86_64 ++ help ++ This is the kernel land equivalent of PAGEEXEC and MPROTECT, ++ that is, enabling this option will make it harder to inject ++ and execute 'foreign' code in kernel memory itself. ++ ++ Note that on x86_64 kernels there is a known regression when ++ this feature and KVM/VMX are both enabled in the host kernel. ++ ++choice ++ prompt "Return Address Instrumentation Method" ++ default PAX_KERNEXEC_PLUGIN_METHOD_BTS ++ depends on PAX_KERNEXEC_PLUGIN ++ help ++ Select the method used to instrument function pointer dereferences. ++ Note that binary modules cannot be instrumented by this approach. ++ ++ config PAX_KERNEXEC_PLUGIN_METHOD_BTS ++ bool "bts" ++ help ++ This method is compatible with binary only modules but has ++ a higher runtime overhead. ++ ++ config PAX_KERNEXEC_PLUGIN_METHOD_OR ++ bool "or" ++ depends on !PARAVIRT ++ help ++ This method is incompatible with binary only modules but has ++ a lower runtime overhead. ++endchoice ++ ++config PAX_KERNEXEC_PLUGIN_METHOD ++ string ++ default "bts" if PAX_KERNEXEC_PLUGIN_METHOD_BTS ++ default "or" if PAX_KERNEXEC_PLUGIN_METHOD_OR ++ default "" ++ ++config PAX_KERNEXEC_MODULE_TEXT ++ int "Minimum amount of memory reserved for module code" ++ default "4" if (!GRKERNSEC_CONFIG_AUTO || GRKERNSEC_CONFIG_SERVER) ++ default "12" if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_DESKTOP) ++ depends on PAX_KERNEXEC && X86_32 && MODULES ++ help ++ Due to implementation details the kernel must reserve a fixed ++ amount of memory for module code at compile time that cannot be ++ changed at runtime. Here you can specify the minimum amount ++ in MB that will be reserved. Due to the same implementation ++ details this size will always be rounded up to the next 2/4 MB ++ boundary (depends on PAE) so the actually available memory for ++ module code will usually be more than this minimum. ++ ++ The default 4 MB should be enough for most users but if you have ++ an excessive number of modules (e.g., most distribution configs ++ compile many drivers as modules) or use huge modules such as ++ nvidia's kernel driver, you will need to adjust this amount. ++ A good rule of thumb is to look at your currently loaded kernel ++ modules and add up their sizes. ++ ++endmenu ++ ++menu "Address Space Layout Randomization" ++ depends on PAX ++ ++config PAX_ASLR ++ bool "Address Space Layout Randomization" ++ default y if GRKERNSEC_CONFIG_AUTO ++ help ++ Many if not most exploit techniques rely on the knowledge of ++ certain addresses in the attacked program. The following options ++ will allow the kernel to apply a certain amount of randomization ++ to specific parts of the program thereby forcing an attacker to ++ guess them in most cases. Any failed guess will most likely crash ++ the attacked program which allows the kernel to detect such attempts ++ and react on them. PaX itself provides no reaction mechanisms, ++ instead it is strongly encouraged that you make use of Nergal's ++ segvguard (ftp://ftp.pl.openwall.com/misc/segvguard/) or grsecurity's ++ (http://www.grsecurity.net/) built-in crash detection features or ++ develop one yourself. ++ ++ By saying Y here you can choose to randomize the following areas: ++ - top of the task's kernel stack ++ - top of the task's userland stack ++ - base address for mmap() requests that do not specify one ++ (this includes all libraries) ++ - base address of the main executable ++ ++ It is strongly recommended to say Y here as address space layout ++ randomization has negligible impact on performance yet it provides ++ a very effective protection. ++ ++ NOTE: you can use the 'chpax' or 'paxctl' utilities to control ++ this feature on a per file basis. ++ ++config PAX_RANDKSTACK ++ bool "Randomize kernel stack base" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on X86_TSC && X86 ++ help ++ By saying Y here the kernel will randomize every task's kernel ++ stack on every system call. This will not only force an attacker ++ to guess it but also prevent him from making use of possible ++ leaked information about it. ++ ++ Since the kernel stack is a rather scarce resource, randomization ++ may cause unexpected stack overflows, therefore you should very ++ carefully test your system. Note that once enabled in the kernel ++ configuration, this feature cannot be disabled on a per file basis. ++ ++config PAX_RANDUSTACK ++ bool "Randomize user stack base" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on PAX_ASLR ++ help ++ By saying Y here the kernel will randomize every task's userland ++ stack. The randomization is done in two steps where the second ++ one may apply a big amount of shift to the top of the stack and ++ cause problems for programs that want to use lots of memory (more ++ than 2.5 GB if SEGMEXEC is not active, or 1.25 GB when it is). ++ For this reason the second step can be controlled by 'chpax' or ++ 'paxctl' on a per file basis. ++ ++config PAX_RANDMMAP ++ bool "Randomize mmap() base" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on PAX_ASLR ++ help ++ By saying Y here the kernel will use a randomized base address for ++ mmap() requests that do not specify one themselves. As a result ++ all dynamically loaded libraries will appear at random addresses ++ and therefore be harder to exploit by a technique where an attacker ++ attempts to execute library code for his purposes (e.g. spawn a ++ shell from an exploited program that is running at an elevated ++ privilege level). ++ ++ Furthermore, if a program is relinked as a dynamic ELF file, its ++ base address will be randomized as well, completing the full ++ randomization of the address space layout. Attacking such programs ++ becomes a guess game. You can find an example of doing this at ++ http://pax.grsecurity.net/et_dyn.tar.gz and practical samples at ++ http://www.grsecurity.net/grsec-gcc-specs.tar.gz . ++ ++ NOTE: you can use the 'chpax' or 'paxctl' utilities to control this ++ feature on a per file basis. ++ ++endmenu ++ ++menu "Miscellaneous hardening features" ++ ++config PAX_MEMORY_SANITIZE ++ bool "Sanitize all freed memory" ++ default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_PRIORITY_SECURITY) ++ depends on !HIBERNATION ++ help ++ By saying Y here the kernel will erase memory pages as soon as they ++ are freed. This in turn reduces the lifetime of data stored in the ++ pages, making it less likely that sensitive information such as ++ passwords, cryptographic secrets, etc stay in memory for too long. ++ ++ This is especially useful for programs whose runtime is short, long ++ lived processes and the kernel itself benefit from this as long as ++ they operate on whole memory pages and ensure timely freeing of pages ++ that may hold sensitive information. ++ ++ The tradeoff is performance impact, on a single CPU system kernel ++ compilation sees a 3% slowdown, other systems and workloads may vary ++ and you are advised to test this feature on your expected workload ++ before deploying it. ++ ++ Note that this feature does not protect data stored in live pages, ++ e.g., process memory swapped to disk may stay there for a long time. ++ ++config PAX_MEMORY_STACKLEAK ++ bool "Sanitize kernel stack" ++ default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_PRIORITY_SECURITY) ++ depends on X86 ++ help ++ By saying Y here the kernel will erase the kernel stack before it ++ returns from a system call. This in turn reduces the information ++ that a kernel stack leak bug can reveal. ++ ++ Note that such a bug can still leak information that was put on ++ the stack by the current system call (the one eventually triggering ++ the bug) but traces of earlier system calls on the kernel stack ++ cannot leak anymore. ++ ++ The tradeoff is performance impact: on a single CPU system kernel ++ compilation sees a 1% slowdown, other systems and workloads may vary ++ and you are advised to test this feature on your expected workload ++ before deploying it. ++ ++ Note: full support for this feature requires gcc with plugin support ++ so make sure your compiler is at least gcc 4.5.0. Using older gcc ++ versions means that functions with large enough stack frames may ++ leave uninitialized memory behind that may be exposed to a later ++ syscall leaking the stack. ++ ++config PAX_MEMORY_UDEREF ++ bool "Prevent invalid userland pointer dereference" ++ default y if GRKERNSEC_CONFIG_AUTO && (X86_32 || (X86_64 && GRKERNSEC_CONFIG_PRIORITY_SECURITY)) && (GRKERNSEC_CONFIG_VIRT_NONE || GRKERNSEC_CONFIG_VIRT_EPT) ++ depends on X86 && !UML_X86 && !XEN ++ select PAX_PER_CPU_PGD if X86_64 ++ help ++ By saying Y here the kernel will be prevented from dereferencing ++ userland pointers in contexts where the kernel expects only kernel ++ pointers. This is both a useful runtime debugging feature and a ++ security measure that prevents exploiting a class of kernel bugs. ++ ++ The tradeoff is that some virtualization solutions may experience ++ a huge slowdown and therefore you should not enable this feature ++ for kernels meant to run in such environments. Whether a given VM ++ solution is affected or not is best determined by simply trying it ++ out, the performance impact will be obvious right on boot as this ++ mechanism engages from very early on. A good rule of thumb is that ++ VMs running on CPUs without hardware virtualization support (i.e., ++ the majority of IA-32 CPUs) will likely experience the slowdown. ++ ++config PAX_REFCOUNT ++ bool "Prevent various kernel object reference counter overflows" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on GRKERNSEC && ((ARM && (CPU_32v6 || CPU_32v6K || CPU_32v7)) || SPARC64 || X86) ++ help ++ By saying Y here the kernel will detect and prevent overflowing ++ various (but not all) kinds of object reference counters. Such ++ overflows can normally occur due to bugs only and are often, if ++ not always, exploitable. ++ ++ The tradeoff is that data structures protected by an overflowed ++ refcount will never be freed and therefore will leak memory. Note ++ that this leak also happens even without this protection but in ++ that case the overflow can eventually trigger the freeing of the ++ data structure while it is still being used elsewhere, resulting ++ in the exploitable situation that this feature prevents. ++ ++ Since this has a negligible performance impact, you should enable ++ this feature. ++ ++config PAX_USERCOPY ++ bool "Harden heap object copies between kernel and userland" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on X86 || PPC || SPARC || ARM ++ depends on GRKERNSEC && (SLAB || SLUB || SLOB) ++ select PAX_USERCOPY_SLABS ++ help ++ By saying Y here the kernel will enforce the size of heap objects ++ when they are copied in either direction between the kernel and ++ userland, even if only a part of the heap object is copied. ++ ++ Specifically, this checking prevents information leaking from the ++ kernel heap during kernel to userland copies (if the kernel heap ++ object is otherwise fully initialized) and prevents kernel heap ++ overflows during userland to kernel copies. ++ ++ Note that the current implementation provides the strictest bounds ++ checks for the SLUB allocator. ++ ++ Enabling this option also enables per-slab cache protection against ++ data in a given cache being copied into/out of via userland ++ accessors. Though the whitelist of regions will be reduced over ++ time, it notably protects important data structures like task structs. ++ ++ If frame pointers are enabled on x86, this option will also restrict ++ copies into and out of the kernel stack to local variables within a ++ single frame. ++ ++ Since this has a negligible performance impact, you should enable ++ this feature. ++ ++config PAX_SIZE_OVERFLOW ++ bool "Prevent various integer overflows in function size parameters" ++ default y if GRKERNSEC_CONFIG_AUTO ++ depends on X86 ++ help ++ By saying Y here the kernel recomputes expressions of function ++ arguments marked by a size_overflow attribute with double integer ++ precision (DImode/TImode for 32/64 bit integer types). ++ ++ The recomputed argument is checked against INT_MAX and an event ++ is logged on overflow and the triggering process is killed. ++ ++ Homepage: ++ http://www.grsecurity.net/~ephox/overflow_plugin/ ++ ++config PAX_LATENT_ENTROPY ++ bool "Generate some entropy during boot" ++ default y if GRKERNSEC_CONFIG_AUTO ++ help ++ By saying Y here the kernel will instrument early boot code to ++ extract some entropy from both original and artificially created ++ program state. This will help especially embedded systems where ++ there is little 'natural' source of entropy normally. The cost ++ is some slowdown of the boot process. ++ ++ Note that entropy extracted this way is not cryptographically ++ secure! ++ ++endmenu ++ ++endmenu ++ ++source grsecurity/Kconfig ++ ++endmenu ++ ++endmenu ++ + config KEYS + bool "Enable access key retention support" + help +@@ -169,7 +1038,7 @@ config INTEL_TXT + config LSM_MMAP_MIN_ADDR + int "Low address space for LSM to protect from user allocation" + depends on SECURITY && SECURITY_SELINUX +- default 32768 if ARM ++ default 32768 if ALPHA || ARM || PARISC || SPARC32 + default 65536 + help + This is the portion of low virtual memory which should be protected +diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c +index ad05d39..afffccb 100644 +--- a/security/apparmor/lsm.c ++++ b/security/apparmor/lsm.c +@@ -622,7 +622,7 @@ static int apparmor_task_setrlimit(struct task_struct *task, + return error; + } + +-static struct security_operations apparmor_ops = { ++static struct security_operations apparmor_ops __read_only = { + .name = "apparmor", + + .ptrace_access_check = apparmor_ptrace_access_check, +diff --git a/security/commoncap.c b/security/commoncap.c +index 71a166a..851bb3e 100644 +--- a/security/commoncap.c ++++ b/security/commoncap.c +@@ -576,6 +576,9 @@ int cap_bprm_secureexec(struct linux_binprm *bprm) + { + const struct cred *cred = current_cred(); + ++ if (gr_acl_enable_at_secure()) ++ return 1; ++ + if (cred->uid != 0) { + if (bprm->cap_effective) + return 1; +diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h +index 3ccf7ac..d73ad64 100644 +--- a/security/integrity/ima/ima.h ++++ b/security/integrity/ima/ima.h +@@ -86,8 +86,8 @@ void ima_add_violation(struct inode *inode, const unsigned char *filename, + extern spinlock_t ima_queue_lock; + + struct ima_h_table { +- atomic_long_t len; /* number of stored measurements in the list */ +- atomic_long_t violations; ++ atomic_long_unchecked_t len; /* number of stored measurements in the list */ ++ atomic_long_unchecked_t violations; + struct hlist_head queue[IMA_MEASURE_HTABLE_SIZE]; + }; + extern struct ima_h_table ima_htable; +diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c +index 88a2788..581ab92 100644 +--- a/security/integrity/ima/ima_api.c ++++ b/security/integrity/ima/ima_api.c +@@ -75,7 +75,7 @@ void ima_add_violation(struct inode *inode, const unsigned char *filename, + int result; + + /* can overflow, only indicator */ +- atomic_long_inc(&ima_htable.violations); ++ atomic_long_inc_unchecked(&ima_htable.violations); + + entry = kmalloc(sizeof(*entry), GFP_KERNEL); + if (!entry) { +diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c +index e1aa2b4..52027bf 100644 +--- a/security/integrity/ima/ima_fs.c ++++ b/security/integrity/ima/ima_fs.c +@@ -28,12 +28,12 @@ + static int valid_policy = 1; + #define TMPBUFLEN 12 + static ssize_t ima_show_htable_value(char __user *buf, size_t count, +- loff_t *ppos, atomic_long_t *val) ++ loff_t *ppos, atomic_long_unchecked_t *val) + { + char tmpbuf[TMPBUFLEN]; + ssize_t len; + +- len = scnprintf(tmpbuf, TMPBUFLEN, "%li\n", atomic_long_read(val)); ++ len = scnprintf(tmpbuf, TMPBUFLEN, "%li\n", atomic_long_read_unchecked(val)); + return simple_read_from_buffer(buf, count, ppos, tmpbuf, len); + } + +diff --git a/security/integrity/ima/ima_queue.c b/security/integrity/ima/ima_queue.c +index 55a6271..ad829c3 100644 +--- a/security/integrity/ima/ima_queue.c ++++ b/security/integrity/ima/ima_queue.c +@@ -81,7 +81,7 @@ static int ima_add_digest_entry(struct ima_template_entry *entry) + INIT_LIST_HEAD(&qe->later); + list_add_tail_rcu(&qe->later, &ima_measurements); + +- atomic_long_inc(&ima_htable.len); ++ atomic_long_inc_unchecked(&ima_htable.len); + key = ima_hash_key(entry->digest); + hlist_add_head_rcu(&qe->hnext, &ima_htable.queue[key]); + return 0; +diff --git a/security/keys/compat.c b/security/keys/compat.c +index 4c48e13..7abdac9 100644 +--- a/security/keys/compat.c ++++ b/security/keys/compat.c +@@ -44,7 +44,7 @@ long compat_keyctl_instantiate_key_iov( + if (ret == 0) + goto no_payload_free; + +- ret = keyctl_instantiate_key_common(id, iov, ioc, ret, ringid); ++ ret = keyctl_instantiate_key_common(id, (const struct iovec __force_user *)iov, ioc, ret, ringid); + + if (iov != iovstack) + kfree(iov); +diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c +index fb767c6..b9c49c0 100644 +--- a/security/keys/keyctl.c ++++ b/security/keys/keyctl.c +@@ -935,7 +935,7 @@ static int keyctl_change_reqkey_auth(struct key *key) + /* + * Copy the iovec data from userspace + */ +-static long copy_from_user_iovec(void *buffer, const struct iovec *iov, ++static long copy_from_user_iovec(void *buffer, const struct iovec __user *iov, + unsigned ioc) + { + for (; ioc > 0; ioc--) { +@@ -957,7 +957,7 @@ static long copy_from_user_iovec(void *buffer, const struct iovec *iov, + * If successful, 0 will be returned. + */ + long keyctl_instantiate_key_common(key_serial_t id, +- const struct iovec *payload_iov, ++ const struct iovec __user *payload_iov, + unsigned ioc, + size_t plen, + key_serial_t ringid) +@@ -1052,7 +1052,7 @@ long keyctl_instantiate_key(key_serial_t id, + [0].iov_len = plen + }; + +- return keyctl_instantiate_key_common(id, iov, 1, plen, ringid); ++ return keyctl_instantiate_key_common(id, (const struct iovec __force_user *)iov, 1, plen, ringid); + } + + return keyctl_instantiate_key_common(id, NULL, 0, 0, ringid); +@@ -1085,7 +1085,7 @@ long keyctl_instantiate_key_iov(key_serial_t id, + if (ret == 0) + goto no_payload_free; + +- ret = keyctl_instantiate_key_common(id, iov, ioc, ret, ringid); ++ ret = keyctl_instantiate_key_common(id, (const struct iovec __force_user *)iov, ioc, ret, ringid); + + if (iov != iovstack) + kfree(iov); +diff --git a/security/keys/keyring.c b/security/keys/keyring.c +index d605f75..2bc6be9 100644 +--- a/security/keys/keyring.c ++++ b/security/keys/keyring.c +@@ -214,15 +214,15 @@ static long keyring_read(const struct key *keyring, + ret = -EFAULT; + + for (loop = 0; loop < klist->nkeys; loop++) { ++ key_serial_t serial; + key = klist->keys[loop]; ++ serial = key->serial; + + tmp = sizeof(key_serial_t); + if (tmp > buflen) + tmp = buflen; + +- if (copy_to_user(buffer, +- &key->serial, +- tmp) != 0) ++ if (copy_to_user(buffer, &serial, tmp)) + goto error; + + buflen -= tmp; +diff --git a/security/min_addr.c b/security/min_addr.c +index f728728..6457a0c 100644 +--- a/security/min_addr.c ++++ b/security/min_addr.c +@@ -14,6 +14,7 @@ unsigned long dac_mmap_min_addr = CONFIG_DEFAULT_MMAP_MIN_ADDR; + */ + static void update_mmap_min_addr(void) + { ++#ifndef SPARC + #ifdef CONFIG_LSM_MMAP_MIN_ADDR + if (dac_mmap_min_addr > CONFIG_LSM_MMAP_MIN_ADDR) + mmap_min_addr = dac_mmap_min_addr; +@@ -22,6 +23,7 @@ static void update_mmap_min_addr(void) + #else + mmap_min_addr = dac_mmap_min_addr; + #endif ++#endif + } + + /* +diff --git a/security/security.c b/security/security.c +index bf619ff..8179030 100644 +--- a/security/security.c ++++ b/security/security.c +@@ -20,6 +20,7 @@ + #include <linux/ima.h> + #include <linux/evm.h> + #include <linux/fsnotify.h> ++#include <linux/mm.h> + #include <net/flow.h> + + #define MAX_LSM_EVM_XATTR 2 +@@ -28,8 +29,8 @@ + static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] = + CONFIG_DEFAULT_SECURITY; + +-static struct security_operations *security_ops; +-static struct security_operations default_security_ops = { ++static struct security_operations *security_ops __read_only; ++static struct security_operations default_security_ops __read_only = { + .name = "default", + }; + +@@ -70,7 +71,9 @@ int __init security_init(void) + + void reset_security_ops(void) + { ++ pax_open_kernel(); + security_ops = &default_security_ops; ++ pax_close_kernel(); + } + + /* Save user chosen LSM */ +diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c +index d85b793..a164832 100644 +--- a/security/selinux/hooks.c ++++ b/security/selinux/hooks.c +@@ -95,8 +95,6 @@ + + #define NUM_SEL_MNT_OPTS 5 + +-extern struct security_operations *security_ops; +- + /* SECMARK reference count */ + static atomic_t selinux_secmark_refcount = ATOMIC_INIT(0); + +@@ -5520,7 +5518,7 @@ static int selinux_key_getsecurity(struct key *key, char **_buffer) + + #endif + +-static struct security_operations selinux_ops = { ++static struct security_operations selinux_ops __read_only = { + .name = "selinux", + + .ptrace_access_check = selinux_ptrace_access_check, +diff --git a/security/selinux/include/xfrm.h b/security/selinux/include/xfrm.h +index c220f31..89fab3f 100644 +--- a/security/selinux/include/xfrm.h ++++ b/security/selinux/include/xfrm.h +@@ -50,7 +50,7 @@ int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall); + + static inline void selinux_xfrm_notify_policyload(void) + { +- atomic_inc(&flow_cache_genid); ++ atomic_inc_unchecked(&flow_cache_genid); + } + #else + static inline int selinux_xfrm_enabled(void) +diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c +index 45c32f0..0038be2 100644 +--- a/security/smack/smack_lsm.c ++++ b/security/smack/smack_lsm.c +@@ -3500,7 +3500,7 @@ static int smack_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) + return 0; + } + +-struct security_operations smack_ops = { ++struct security_operations smack_ops __read_only = { + .name = "smack", + + .ptrace_access_check = smack_ptrace_access_check, +diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c +index 620d37c..e2ad89b 100644 +--- a/security/tomoyo/tomoyo.c ++++ b/security/tomoyo/tomoyo.c +@@ -501,7 +501,7 @@ static int tomoyo_socket_sendmsg(struct socket *sock, struct msghdr *msg, + * tomoyo_security_ops is a "struct security_operations" which is used for + * registering TOMOYO. + */ +-static struct security_operations tomoyo_security_ops = { ++static struct security_operations tomoyo_security_ops __read_only = { + .name = "tomoyo", + .cred_alloc_blank = tomoyo_cred_alloc_blank, + .cred_prepare = tomoyo_cred_prepare, +diff --git a/security/yama/Kconfig b/security/yama/Kconfig +index 51d6709..1f3dbe2 100644 +--- a/security/yama/Kconfig ++++ b/security/yama/Kconfig +@@ -1,6 +1,6 @@ + config SECURITY_YAMA + bool "Yama support" +- depends on SECURITY ++ depends on SECURITY && !GRKERNSEC + select SECURITYFS + select SECURITY_PATH + default n +diff --git a/sound/aoa/codecs/onyx.c b/sound/aoa/codecs/onyx.c +index 270790d..c67dfcb 100644 +--- a/sound/aoa/codecs/onyx.c ++++ b/sound/aoa/codecs/onyx.c +@@ -54,7 +54,7 @@ struct onyx { + spdif_locked:1, + analog_locked:1, + original_mute:2; +- int open_count; ++ local_t open_count; + struct codec_info *codec_info; + + /* mutex serializes concurrent access to the device +@@ -753,7 +753,7 @@ static int onyx_open(struct codec_info_item *cii, + struct onyx *onyx = cii->codec_data; + + mutex_lock(&onyx->mutex); +- onyx->open_count++; ++ local_inc(&onyx->open_count); + mutex_unlock(&onyx->mutex); + + return 0; +@@ -765,8 +765,7 @@ static int onyx_close(struct codec_info_item *cii, + struct onyx *onyx = cii->codec_data; + + mutex_lock(&onyx->mutex); +- onyx->open_count--; +- if (!onyx->open_count) ++ if (local_dec_and_test(&onyx->open_count)) + onyx->spdif_locked = onyx->analog_locked = 0; + mutex_unlock(&onyx->mutex); + +diff --git a/sound/aoa/codecs/onyx.h b/sound/aoa/codecs/onyx.h +index ffd2025..df062c9 100644 +--- a/sound/aoa/codecs/onyx.h ++++ b/sound/aoa/codecs/onyx.h +@@ -11,6 +11,7 @@ + #include <linux/i2c.h> + #include <asm/pmac_low_i2c.h> + #include <asm/prom.h> ++#include <asm/local.h> + + /* PCM3052 register definitions */ + +diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c +index 08fde00..0bf641a 100644 +--- a/sound/core/oss/pcm_oss.c ++++ b/sound/core/oss/pcm_oss.c +@@ -1189,10 +1189,10 @@ snd_pcm_sframes_t snd_pcm_oss_write3(struct snd_pcm_substream *substream, const + if (in_kernel) { + mm_segment_t fs; + fs = snd_enter_user(); +- ret = snd_pcm_lib_write(substream, (void __force __user *)ptr, frames); ++ ret = snd_pcm_lib_write(substream, (void __force_user *)ptr, frames); + snd_leave_user(fs); + } else { +- ret = snd_pcm_lib_write(substream, (void __force __user *)ptr, frames); ++ ret = snd_pcm_lib_write(substream, (void __force_user *)ptr, frames); + } + if (ret != -EPIPE && ret != -ESTRPIPE) + break; +@@ -1234,10 +1234,10 @@ snd_pcm_sframes_t snd_pcm_oss_read3(struct snd_pcm_substream *substream, char *p + if (in_kernel) { + mm_segment_t fs; + fs = snd_enter_user(); +- ret = snd_pcm_lib_read(substream, (void __force __user *)ptr, frames); ++ ret = snd_pcm_lib_read(substream, (void __force_user *)ptr, frames); + snd_leave_user(fs); + } else { +- ret = snd_pcm_lib_read(substream, (void __force __user *)ptr, frames); ++ ret = snd_pcm_lib_read(substream, (void __force_user *)ptr, frames); + } + if (ret == -EPIPE) { + if (runtime->status->state == SNDRV_PCM_STATE_DRAINING) { +@@ -1337,7 +1337,7 @@ static ssize_t snd_pcm_oss_write2(struct snd_pcm_substream *substream, const cha + struct snd_pcm_plugin_channel *channels; + size_t oss_frame_bytes = (runtime->oss.plugin_first->src_width * runtime->oss.plugin_first->src_format.channels) / 8; + if (!in_kernel) { +- if (copy_from_user(runtime->oss.buffer, (const char __force __user *)buf, bytes)) ++ if (copy_from_user(runtime->oss.buffer, (const char __force_user *)buf, bytes)) + return -EFAULT; + buf = runtime->oss.buffer; + } +@@ -1407,7 +1407,7 @@ static ssize_t snd_pcm_oss_write1(struct snd_pcm_substream *substream, const cha + } + } else { + tmp = snd_pcm_oss_write2(substream, +- (const char __force *)buf, ++ (const char __force_kernel *)buf, + runtime->oss.period_bytes, 0); + if (tmp <= 0) + goto err; +@@ -1433,7 +1433,7 @@ static ssize_t snd_pcm_oss_read2(struct snd_pcm_substream *substream, char *buf, + struct snd_pcm_runtime *runtime = substream->runtime; + snd_pcm_sframes_t frames, frames1; + #ifdef CONFIG_SND_PCM_OSS_PLUGINS +- char __user *final_dst = (char __force __user *)buf; ++ char __user *final_dst = (char __force_user *)buf; + if (runtime->oss.plugin_first) { + struct snd_pcm_plugin_channel *channels; + size_t oss_frame_bytes = (runtime->oss.plugin_last->dst_width * runtime->oss.plugin_last->dst_format.channels) / 8; +@@ -1495,7 +1495,7 @@ static ssize_t snd_pcm_oss_read1(struct snd_pcm_substream *substream, char __use + xfer += tmp; + runtime->oss.buffer_used -= tmp; + } else { +- tmp = snd_pcm_oss_read2(substream, (char __force *)buf, ++ tmp = snd_pcm_oss_read2(substream, (char __force_kernel *)buf, + runtime->oss.period_bytes, 0); + if (tmp <= 0) + goto err; +@@ -1663,7 +1663,7 @@ static int snd_pcm_oss_sync(struct snd_pcm_oss_file *pcm_oss_file) + size1); + size1 /= runtime->channels; /* frames */ + fs = snd_enter_user(); +- snd_pcm_lib_write(substream, (void __force __user *)runtime->oss.buffer, size1); ++ snd_pcm_lib_write(substream, (void __force_user *)runtime->oss.buffer, size1); + snd_leave_user(fs); + } + } else if (runtime->access == SNDRV_PCM_ACCESS_RW_NONINTERLEAVED) { +diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c +index 91cdf94..4085161 100644 +--- a/sound/core/pcm_compat.c ++++ b/sound/core/pcm_compat.c +@@ -31,7 +31,7 @@ static int snd_pcm_ioctl_delay_compat(struct snd_pcm_substream *substream, + int err; + + fs = snd_enter_user(); +- err = snd_pcm_delay(substream, &delay); ++ err = snd_pcm_delay(substream, (snd_pcm_sframes_t __force_user *)&delay); + snd_leave_user(fs); + if (err < 0) + return err; +diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c +index 3fe99e6..26952e4 100644 +--- a/sound/core/pcm_native.c ++++ b/sound/core/pcm_native.c +@@ -2770,11 +2770,11 @@ int snd_pcm_kernel_ioctl(struct snd_pcm_substream *substream, + switch (substream->stream) { + case SNDRV_PCM_STREAM_PLAYBACK: + result = snd_pcm_playback_ioctl1(NULL, substream, cmd, +- (void __user *)arg); ++ (void __force_user *)arg); + break; + case SNDRV_PCM_STREAM_CAPTURE: + result = snd_pcm_capture_ioctl1(NULL, substream, cmd, +- (void __user *)arg); ++ (void __force_user *)arg); + break; + default: + result = -EINVAL; +diff --git a/sound/core/seq/seq_device.c b/sound/core/seq/seq_device.c +index 5cf8d65..912a79c 100644 +--- a/sound/core/seq/seq_device.c ++++ b/sound/core/seq/seq_device.c +@@ -64,7 +64,7 @@ struct ops_list { + int argsize; /* argument size */ + + /* operators */ +- struct snd_seq_dev_ops ops; ++ struct snd_seq_dev_ops *ops; + + /* registred devices */ + struct list_head dev_list; /* list of devices */ +@@ -333,7 +333,7 @@ int snd_seq_device_register_driver(char *id, struct snd_seq_dev_ops *entry, + + mutex_lock(&ops->reg_mutex); + /* copy driver operators */ +- ops->ops = *entry; ++ ops->ops = entry; + ops->driver |= DRIVER_LOADED; + ops->argsize = argsize; + +@@ -463,7 +463,7 @@ static int init_device(struct snd_seq_device *dev, struct ops_list *ops) + dev->name, ops->id, ops->argsize, dev->argsize); + return -EINVAL; + } +- if (ops->ops.init_device(dev) >= 0) { ++ if (ops->ops->init_device(dev) >= 0) { + dev->status = SNDRV_SEQ_DEVICE_REGISTERED; + ops->num_init_devices++; + } else { +@@ -490,7 +490,7 @@ static int free_device(struct snd_seq_device *dev, struct ops_list *ops) + dev->name, ops->id, ops->argsize, dev->argsize); + return -EINVAL; + } +- if ((result = ops->ops.free_device(dev)) >= 0 || result == -ENXIO) { ++ if ((result = ops->ops->free_device(dev)) >= 0 || result == -ENXIO) { + dev->status = SNDRV_SEQ_DEVICE_FREE; + dev->driver_data = NULL; + ops->num_init_devices--; +diff --git a/sound/drivers/mts64.c b/sound/drivers/mts64.c +index 621e60e..f4543f5 100644 +--- a/sound/drivers/mts64.c ++++ b/sound/drivers/mts64.c +@@ -29,6 +29,7 @@ + #include <sound/initval.h> + #include <sound/rawmidi.h> + #include <sound/control.h> ++#include <asm/local.h> + + #define CARD_NAME "Miditerminal 4140" + #define DRIVER_NAME "MTS64" +@@ -67,7 +68,7 @@ struct mts64 { + struct pardevice *pardev; + int pardev_claimed; + +- int open_count; ++ local_t open_count; + int current_midi_output_port; + int current_midi_input_port; + u8 mode[MTS64_NUM_INPUT_PORTS]; +@@ -697,7 +698,7 @@ static int snd_mts64_rawmidi_open(struct snd_rawmidi_substream *substream) + { + struct mts64 *mts = substream->rmidi->private_data; + +- if (mts->open_count == 0) { ++ if (local_read(&mts->open_count) == 0) { + /* We don't need a spinlock here, because this is just called + if the device has not been opened before. + So there aren't any IRQs from the device */ +@@ -705,7 +706,7 @@ static int snd_mts64_rawmidi_open(struct snd_rawmidi_substream *substream) + + msleep(50); + } +- ++(mts->open_count); ++ local_inc(&mts->open_count); + + return 0; + } +@@ -715,8 +716,7 @@ static int snd_mts64_rawmidi_close(struct snd_rawmidi_substream *substream) + struct mts64 *mts = substream->rmidi->private_data; + unsigned long flags; + +- --(mts->open_count); +- if (mts->open_count == 0) { ++ if (local_dec_return(&mts->open_count) == 0) { + /* We need the spinlock_irqsave here because we can still + have IRQs at this point */ + spin_lock_irqsave(&mts->lock, flags); +@@ -725,8 +725,8 @@ static int snd_mts64_rawmidi_close(struct snd_rawmidi_substream *substream) + + msleep(500); + +- } else if (mts->open_count < 0) +- mts->open_count = 0; ++ } else if (local_read(&mts->open_count) < 0) ++ local_set(&mts->open_count, 0); + + return 0; + } +diff --git a/sound/drivers/opl4/opl4_lib.c b/sound/drivers/opl4/opl4_lib.c +index b953fb4..1999c01 100644 +--- a/sound/drivers/opl4/opl4_lib.c ++++ b/sound/drivers/opl4/opl4_lib.c +@@ -29,7 +29,7 @@ MODULE_AUTHOR("Clemens Ladisch <clemens(a)ladisch.de>"); + MODULE_DESCRIPTION("OPL4 driver"); + MODULE_LICENSE("GPL"); + +-static void inline snd_opl4_wait(struct snd_opl4 *opl4) ++static inline void snd_opl4_wait(struct snd_opl4 *opl4) + { + int timeout = 10; + while ((inb(opl4->fm_port) & OPL4_STATUS_BUSY) && --timeout > 0) +diff --git a/sound/drivers/portman2x4.c b/sound/drivers/portman2x4.c +index 3e32bd3..46fc152 100644 +--- a/sound/drivers/portman2x4.c ++++ b/sound/drivers/portman2x4.c +@@ -48,6 +48,7 @@ + #include <sound/initval.h> + #include <sound/rawmidi.h> + #include <sound/control.h> ++#include <asm/local.h> + + #define CARD_NAME "Portman 2x4" + #define DRIVER_NAME "portman" +@@ -85,7 +86,7 @@ struct portman { + struct pardevice *pardev; + int pardev_claimed; + +- int open_count; ++ local_t open_count; + int mode[PORTMAN_NUM_INPUT_PORTS]; + struct snd_rawmidi_substream *midi_input[PORTMAN_NUM_INPUT_PORTS]; + }; +diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c +index 87657dd..a8268d4 100644 +--- a/sound/firewire/amdtp.c ++++ b/sound/firewire/amdtp.c +@@ -371,7 +371,7 @@ static void queue_out_packet(struct amdtp_out_stream *s, unsigned int cycle) + ptr = s->pcm_buffer_pointer + data_blocks; + if (ptr >= pcm->runtime->buffer_size) + ptr -= pcm->runtime->buffer_size; +- ACCESS_ONCE(s->pcm_buffer_pointer) = ptr; ++ ACCESS_ONCE_RW(s->pcm_buffer_pointer) = ptr; + + s->pcm_period_pointer += data_blocks; + if (s->pcm_period_pointer >= pcm->runtime->period_size) { +@@ -511,7 +511,7 @@ EXPORT_SYMBOL(amdtp_out_stream_start); + */ + void amdtp_out_stream_update(struct amdtp_out_stream *s) + { +- ACCESS_ONCE(s->source_node_id_field) = ++ ACCESS_ONCE_RW(s->source_node_id_field) = + (fw_parent_device(s->unit)->card->node_id & 0x3f) << 24; + } + EXPORT_SYMBOL(amdtp_out_stream_update); +diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h +index 537a9cb..8e8c8e9 100644 +--- a/sound/firewire/amdtp.h ++++ b/sound/firewire/amdtp.h +@@ -146,7 +146,7 @@ static inline void amdtp_out_stream_pcm_prepare(struct amdtp_out_stream *s) + static inline void amdtp_out_stream_pcm_trigger(struct amdtp_out_stream *s, + struct snd_pcm_substream *pcm) + { +- ACCESS_ONCE(s->pcm) = pcm; ++ ACCESS_ONCE_RW(s->pcm) = pcm; + } + + /** +diff --git a/sound/firewire/isight.c b/sound/firewire/isight.c +index d428ffe..751ef78 100644 +--- a/sound/firewire/isight.c ++++ b/sound/firewire/isight.c +@@ -96,7 +96,7 @@ static void isight_update_pointers(struct isight *isight, unsigned int count) + ptr += count; + if (ptr >= runtime->buffer_size) + ptr -= runtime->buffer_size; +- ACCESS_ONCE(isight->buffer_pointer) = ptr; ++ ACCESS_ONCE_RW(isight->buffer_pointer) = ptr; + + isight->period_counter += count; + if (isight->period_counter >= runtime->period_size) { +@@ -307,7 +307,7 @@ static int isight_hw_params(struct snd_pcm_substream *substream, + if (err < 0) + return err; + +- ACCESS_ONCE(isight->pcm_active) = true; ++ ACCESS_ONCE_RW(isight->pcm_active) = true; + + return 0; + } +@@ -340,7 +340,7 @@ static int isight_hw_free(struct snd_pcm_substream *substream) + { + struct isight *isight = substream->private_data; + +- ACCESS_ONCE(isight->pcm_active) = false; ++ ACCESS_ONCE_RW(isight->pcm_active) = false; + + mutex_lock(&isight->mutex); + isight_stop_streaming(isight); +@@ -433,10 +433,10 @@ static int isight_trigger(struct snd_pcm_substream *substream, int cmd) + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: +- ACCESS_ONCE(isight->pcm_running) = true; ++ ACCESS_ONCE_RW(isight->pcm_running) = true; + break; + case SNDRV_PCM_TRIGGER_STOP: +- ACCESS_ONCE(isight->pcm_running) = false; ++ ACCESS_ONCE_RW(isight->pcm_running) = false; + break; + default: + return -EINVAL; +diff --git a/sound/isa/cmi8330.c b/sound/isa/cmi8330.c +index 7bd5e33..1fcab12 100644 +--- a/sound/isa/cmi8330.c ++++ b/sound/isa/cmi8330.c +@@ -172,7 +172,7 @@ struct snd_cmi8330 { + + struct snd_pcm *pcm; + struct snd_cmi8330_stream { +- struct snd_pcm_ops ops; ++ snd_pcm_ops_no_const ops; + snd_pcm_open_callback_t open; + void *private_data; /* sb or wss */ + } streams[2]; +diff --git a/sound/oss/sb_audio.c b/sound/oss/sb_audio.c +index 733b014..56ce96f 100644 +--- a/sound/oss/sb_audio.c ++++ b/sound/oss/sb_audio.c +@@ -901,7 +901,7 @@ sb16_copy_from_user(int dev, + buf16 = (signed short *)(localbuf + localoffs); + while (c) + { +- locallen = (c >= LBUFCOPYSIZE ? LBUFCOPYSIZE : c); ++ locallen = ((unsigned)c >= LBUFCOPYSIZE ? LBUFCOPYSIZE : c); + if (copy_from_user(lbuf8, + userbuf+useroffs + p, + locallen)) +diff --git a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c +index 09d4648..cf234c7 100644 +--- a/sound/oss/swarm_cs4297a.c ++++ b/sound/oss/swarm_cs4297a.c +@@ -2606,7 +2606,6 @@ static int __init cs4297a_init(void) + { + struct cs4297a_state *s; + u32 pwr, id; +- mm_segment_t fs; + int rval; + #ifndef CONFIG_BCM_CS4297A_CSWARM + u64 cfg; +@@ -2696,22 +2695,23 @@ static int __init cs4297a_init(void) + if (!rval) { + char *sb1250_duart_present; + ++#if 0 ++ mm_segment_t fs; + fs = get_fs(); + set_fs(KERNEL_DS); +-#if 0 + val = SOUND_MASK_LINE; + mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long) &val); + for (i = 0; i < ARRAY_SIZE(initvol); i++) { + val = initvol[i].vol; + mixer_ioctl(s, initvol[i].mixch, (unsigned long) &val); + } ++ set_fs(fs); + // cs4297a_write_ac97(s, 0x18, 0x0808); + #else + // cs4297a_write_ac97(s, 0x5e, 0x180); + cs4297a_write_ac97(s, 0x02, 0x0808); + cs4297a_write_ac97(s, 0x18, 0x0808); + #endif +- set_fs(fs); + + list_add(&s->list, &cs4297a_devs); + +diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h +index 56b4f74..7cfd41a 100644 +--- a/sound/pci/hda/hda_codec.h ++++ b/sound/pci/hda/hda_codec.h +@@ -611,7 +611,7 @@ struct hda_bus_ops { + /* notify power-up/down from codec to controller */ + void (*pm_notify)(struct hda_bus *bus); + #endif +-}; ++} __no_const; + + /* template to pass to the bus constructor */ + struct hda_bus_template { +@@ -713,6 +713,7 @@ struct hda_codec_ops { + #endif + void (*reboot_notify)(struct hda_codec *codec); + }; ++typedef struct hda_codec_ops __no_const hda_codec_ops_no_const; + + /* record for amp information cache */ + struct hda_cache_head { +@@ -743,7 +744,7 @@ struct hda_pcm_ops { + struct snd_pcm_substream *substream); + int (*cleanup)(struct hda_pcm_stream *info, struct hda_codec *codec, + struct snd_pcm_substream *substream); +-}; ++} __no_const; + + /* PCM information for each substream */ + struct hda_pcm_stream { +@@ -801,7 +802,7 @@ struct hda_codec { + const char *modelname; /* model name for preset */ + + /* set by patch */ +- struct hda_codec_ops patch_ops; ++ hda_codec_ops_no_const patch_ops; + + /* PCM to create, set by patch_ops.build_pcms callback */ + unsigned int num_pcms; +diff --git a/sound/pci/ice1712/ice1712.h b/sound/pci/ice1712/ice1712.h +index 0da778a..bc38b84 100644 +--- a/sound/pci/ice1712/ice1712.h ++++ b/sound/pci/ice1712/ice1712.h +@@ -269,7 +269,7 @@ struct snd_ak4xxx_private { + unsigned int mask_flags; /* total mask bits */ + struct snd_akm4xxx_ops { + void (*set_rate_val)(struct snd_akm4xxx *ak, unsigned int rate); +- } ops; ++ } __no_const ops; + }; + + struct snd_ice1712_spdif { +@@ -285,7 +285,7 @@ struct snd_ice1712_spdif { + int (*default_put)(struct snd_ice1712 *, struct snd_ctl_elem_value *ucontrol); + void (*stream_get)(struct snd_ice1712 *, struct snd_ctl_elem_value *ucontrol); + int (*stream_put)(struct snd_ice1712 *, struct snd_ctl_elem_value *ucontrol); +- } ops; ++ } __no_const ops; + }; + + +diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c +index a8159b81..5f006a5 100644 +--- a/sound/pci/ymfpci/ymfpci_main.c ++++ b/sound/pci/ymfpci/ymfpci_main.c +@@ -203,8 +203,8 @@ static void snd_ymfpci_hw_stop(struct snd_ymfpci *chip) + if ((snd_ymfpci_readl(chip, YDSXGR_STATUS) & 2) == 0) + break; + } +- if (atomic_read(&chip->interrupt_sleep_count)) { +- atomic_set(&chip->interrupt_sleep_count, 0); ++ if (atomic_read_unchecked(&chip->interrupt_sleep_count)) { ++ atomic_set_unchecked(&chip->interrupt_sleep_count, 0); + wake_up(&chip->interrupt_sleep); + } + __end: +@@ -788,7 +788,7 @@ static void snd_ymfpci_irq_wait(struct snd_ymfpci *chip) + continue; + init_waitqueue_entry(&wait, current); + add_wait_queue(&chip->interrupt_sleep, &wait); +- atomic_inc(&chip->interrupt_sleep_count); ++ atomic_inc_unchecked(&chip->interrupt_sleep_count); + schedule_timeout_uninterruptible(msecs_to_jiffies(50)); + remove_wait_queue(&chip->interrupt_sleep, &wait); + } +@@ -826,8 +826,8 @@ static irqreturn_t snd_ymfpci_interrupt(int irq, void *dev_id) + snd_ymfpci_writel(chip, YDSXGR_MODE, mode); + spin_unlock(&chip->reg_lock); + +- if (atomic_read(&chip->interrupt_sleep_count)) { +- atomic_set(&chip->interrupt_sleep_count, 0); ++ if (atomic_read_unchecked(&chip->interrupt_sleep_count)) { ++ atomic_set_unchecked(&chip->interrupt_sleep_count, 0); + wake_up(&chip->interrupt_sleep); + } + } +@@ -2398,7 +2398,7 @@ int __devinit snd_ymfpci_create(struct snd_card *card, + spin_lock_init(&chip->reg_lock); + spin_lock_init(&chip->voice_lock); + init_waitqueue_head(&chip->interrupt_sleep); +- atomic_set(&chip->interrupt_sleep_count, 0); ++ atomic_set_unchecked(&chip->interrupt_sleep_count, 0); + chip->card = card; + chip->pci = pci; + chip->irq = -1; +diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c +index 0ad8dca..7186339 100644 +--- a/sound/soc/soc-pcm.c ++++ b/sound/soc/soc-pcm.c +@@ -641,7 +641,7 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) + struct snd_soc_platform *platform = rtd->platform; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; +- struct snd_pcm_ops *soc_pcm_ops = &rtd->ops; ++ snd_pcm_ops_no_const *soc_pcm_ops = &rtd->ops; + struct snd_pcm *pcm; + char new_name[64]; + int ret = 0, playback = 0, capture = 0; +diff --git a/sound/usb/card.h b/sound/usb/card.h +index da5fa1a..113cd02 100644 +--- a/sound/usb/card.h ++++ b/sound/usb/card.h +@@ -45,6 +45,7 @@ struct snd_urb_ops { + int (*prepare_sync)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u); + int (*retire_sync)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u); + }; ++typedef struct snd_urb_ops __no_const snd_urb_ops_no_const; + + struct snd_usb_substream { + struct snd_usb_stream *stream; +@@ -94,7 +95,7 @@ struct snd_usb_substream { + struct snd_pcm_hw_constraint_list rate_list; /* limited rates */ + spinlock_t lock; + +- struct snd_urb_ops ops; /* callbacks (must be filled at init) */ ++ snd_urb_ops_no_const ops; /* callbacks (must be filled at init) */ + int last_frame_number; /* stored frame number */ + int last_delay; /* stored delay */ + }; +diff --git a/tools/gcc/.gitignore b/tools/gcc/.gitignore +new file mode 100644 +index 0000000..50f2f2f +--- /dev/null ++++ b/tools/gcc/.gitignore +@@ -0,0 +1 @@ ++size_overflow_hash.h +diff --git a/tools/gcc/Makefile b/tools/gcc/Makefile +new file mode 100644 +index 0000000..1d09b7e +--- /dev/null ++++ b/tools/gcc/Makefile +@@ -0,0 +1,43 @@ ++#CC := gcc ++#PLUGIN_SOURCE_FILES := pax_plugin.c ++#PLUGIN_OBJECT_FILES := $(patsubst %.c,%.o,$(PLUGIN_SOURCE_FILES)) ++GCCPLUGINS_DIR := $(shell $(CC) -print-file-name=plugin) ++#CFLAGS += -I$(GCCPLUGINS_DIR)/include -fPIC -O2 -Wall -W -std=gnu99 ++ ++ifeq ($(PLUGINCC),$(HOSTCC)) ++HOSTLIBS := hostlibs ++HOST_EXTRACFLAGS += -I$(GCCPLUGINS_DIR)/include -I$(GCCPLUGINS_DIR)/include/c-family -std=gnu99 -ggdb ++else ++HOSTLIBS := hostcxxlibs ++HOST_EXTRACXXFLAGS += -I$(GCCPLUGINS_DIR)/include -I$(GCCPLUGINS_DIR)/include/c-family -std=gnu++98 -ggdb -Wno-unused-parameter ++endif ++ ++$(HOSTLIBS)-y := constify_plugin.so ++$(HOSTLIBS)-$(CONFIG_PAX_MEMORY_STACKLEAK) += stackleak_plugin.so ++$(HOSTLIBS)-$(CONFIG_KALLOCSTAT_PLUGIN) += kallocstat_plugin.so ++$(HOSTLIBS)-$(CONFIG_PAX_KERNEXEC_PLUGIN) += kernexec_plugin.so ++$(HOSTLIBS)-$(CONFIG_CHECKER_PLUGIN) += checker_plugin.so ++$(HOSTLIBS)-y += colorize_plugin.so ++$(HOSTLIBS)-$(CONFIG_PAX_SIZE_OVERFLOW) += size_overflow_plugin.so ++$(HOSTLIBS)-$(CONFIG_PAX_LATENT_ENTROPY) += latent_entropy_plugin.so ++ ++always := $($(HOSTLIBS)-y) ++ ++constify_plugin-objs := constify_plugin.o ++stackleak_plugin-objs := stackleak_plugin.o ++kallocstat_plugin-objs := kallocstat_plugin.o ++kernexec_plugin-objs := kernexec_plugin.o ++checker_plugin-objs := checker_plugin.o ++colorize_plugin-objs := colorize_plugin.o ++size_overflow_plugin-objs := size_overflow_plugin.o ++latent_entropy_plugin-objs := latent_entropy_plugin.o ++ ++$(obj)/size_overflow_plugin.o: $(objtree)/$(obj)/size_overflow_hash.h ++ ++quiet_cmd_build_size_overflow_hash = GENHASH $@ ++ cmd_build_size_overflow_hash = \ ++ $(CONFIG_SHELL) $(srctree)/$(src)/generate_size_overflow_hash.sh -d $< -o $@ ++$(objtree)/$(obj)/size_overflow_hash.h: $(src)/size_overflow_hash.data FORCE ++ $(call if_changed,build_size_overflow_hash) ++ ++targets += size_overflow_hash.h +diff --git a/tools/gcc/checker_plugin.c b/tools/gcc/checker_plugin.c +new file mode 100644 +index 0000000..d41b5af +--- /dev/null ++++ b/tools/gcc/checker_plugin.c +@@ -0,0 +1,171 @@ ++/* ++ * Copyright 2011 by the PaX Team <pageexec(a)freemail.hu> ++ * Licensed under the GPL v2 ++ * ++ * Note: the choice of the license means that the compilation process is ++ * NOT 'eligible' as defined by gcc's library exception to the GPL v3, ++ * but for the kernel it doesn't matter since it doesn't link against ++ * any of the gcc libraries ++ * ++ * gcc plugin to implement various sparse (source code checker) features ++ * ++ * TODO: ++ * - define separate __iomem, __percpu and __rcu address spaces (lots of code to patch) ++ * ++ * BUGS: ++ * - none known ++ */ ++#include "gcc-plugin.h" ++#include "config.h" ++#include "system.h" ++#include "coretypes.h" ++#include "tree.h" ++#include "tree-pass.h" ++#include "flags.h" ++#include "intl.h" ++#include "toplev.h" ++#include "plugin.h" ++//#include "expr.h" where are you... ++#include "diagnostic.h" ++#include "plugin-version.h" ++#include "tm.h" ++#include "function.h" ++#include "basic-block.h" ++#include "gimple.h" ++#include "rtl.h" ++#include "emit-rtl.h" ++#include "tree-flow.h" ++#include "target.h" ++ ++extern void c_register_addr_space (const char *str, addr_space_t as); ++extern enum machine_mode default_addr_space_pointer_mode (addr_space_t); ++extern enum machine_mode default_addr_space_address_mode (addr_space_t); ++extern bool default_addr_space_valid_pointer_mode(enum machine_mode mode, addr_space_t as); ++extern bool default_addr_space_legitimate_address_p(enum machine_mode mode, rtx mem, bool strict, addr_space_t as); ++extern rtx default_addr_space_legitimize_address(rtx x, rtx oldx, enum machine_mode mode, addr_space_t as); ++ ++extern void print_gimple_stmt(FILE *, gimple, int, int); ++extern rtx emit_move_insn(rtx x, rtx y); ++ ++int plugin_is_GPL_compatible; ++ ++static struct plugin_info checker_plugin_info = { ++ .version = "201111150100", ++}; ++ ++#define ADDR_SPACE_KERNEL 0 ++#define ADDR_SPACE_FORCE_KERNEL 1 ++#define ADDR_SPACE_USER 2 ++#define ADDR_SPACE_FORCE_USER 3 ++#define ADDR_SPACE_IOMEM 0 ++#define ADDR_SPACE_FORCE_IOMEM 0 ++#define ADDR_SPACE_PERCPU 0 ++#define ADDR_SPACE_FORCE_PERCPU 0 ++#define ADDR_SPACE_RCU 0 ++#define ADDR_SPACE_FORCE_RCU 0 ++ ++static enum machine_mode checker_addr_space_pointer_mode(addr_space_t addrspace) ++{ ++ return default_addr_space_pointer_mode(ADDR_SPACE_GENERIC); ++} ++ ++static enum machine_mode checker_addr_space_address_mode(addr_space_t addrspace) ++{ ++ return default_addr_space_address_mode(ADDR_SPACE_GENERIC); ++} ++ ++static bool checker_addr_space_valid_pointer_mode(enum machine_mode mode, addr_space_t as) ++{ ++ return default_addr_space_valid_pointer_mode(mode, as); ++} ++ ++static bool checker_addr_space_legitimate_address_p(enum machine_mode mode, rtx mem, bool strict, addr_space_t as) ++{ ++ return default_addr_space_legitimate_address_p(mode, mem, strict, ADDR_SPACE_GENERIC); ++} ++ ++static rtx checker_addr_space_legitimize_address(rtx x, rtx oldx, enum machine_mode mode, addr_space_t as) ++{ ++ return default_addr_space_legitimize_address(x, oldx, mode, as); ++} ++ ++static bool checker_addr_space_subset_p(addr_space_t subset, addr_space_t superset) ++{ ++ if (subset == ADDR_SPACE_FORCE_KERNEL && superset == ADDR_SPACE_KERNEL) ++ return true; ++ ++ if (subset == ADDR_SPACE_FORCE_USER && superset == ADDR_SPACE_USER) ++ return true; ++ ++ if (subset == ADDR_SPACE_FORCE_IOMEM && superset == ADDR_SPACE_IOMEM) ++ return true; ++ ++ if (subset == ADDR_SPACE_KERNEL && superset == ADDR_SPACE_FORCE_USER) ++ return true; ++ ++ if (subset == ADDR_SPACE_KERNEL && superset == ADDR_SPACE_FORCE_IOMEM) ++ return true; ++ ++ if (subset == ADDR_SPACE_USER && superset == ADDR_SPACE_FORCE_KERNEL) ++ return true; ++ ++ if (subset == ADDR_SPACE_IOMEM && superset == ADDR_SPACE_FORCE_KERNEL) ++ return true; ++ ++ return subset == superset; ++} ++ ++static rtx checker_addr_space_convert(rtx op, tree from_type, tree to_type) ++{ ++// addr_space_t from_as = TYPE_ADDR_SPACE(TREE_TYPE(from_type)); ++// addr_space_t to_as = TYPE_ADDR_SPACE(TREE_TYPE(to_type)); ++ ++ return op; ++} ++ ++static void register_checker_address_spaces(void *event_data, void *data) ++{ ++ c_register_addr_space("__kernel", ADDR_SPACE_KERNEL); ++ c_register_addr_space("__force_kernel", ADDR_SPACE_FORCE_KERNEL); ++ c_register_addr_space("__user", ADDR_SPACE_USER); ++ c_register_addr_space("__force_user", ADDR_SPACE_FORCE_USER); ++// c_register_addr_space("__iomem", ADDR_SPACE_IOMEM); ++// c_register_addr_space("__force_iomem", ADDR_SPACE_FORCE_IOMEM); ++// c_register_addr_space("__percpu", ADDR_SPACE_PERCPU); ++// c_register_addr_space("__force_percpu", ADDR_SPACE_FORCE_PERCPU); ++// c_register_addr_space("__rcu", ADDR_SPACE_RCU); ++// c_register_addr_space("__force_rcu", ADDR_SPACE_FORCE_RCU); ++ ++ targetm.addr_space.pointer_mode = checker_addr_space_pointer_mode; ++ targetm.addr_space.address_mode = checker_addr_space_address_mode; ++ targetm.addr_space.valid_pointer_mode = checker_addr_space_valid_pointer_mode; ++ targetm.addr_space.legitimate_address_p = checker_addr_space_legitimate_address_p; ++// targetm.addr_space.legitimize_address = checker_addr_space_legitimize_address; ++ targetm.addr_space.subset_p = checker_addr_space_subset_p; ++ targetm.addr_space.convert = checker_addr_space_convert; ++} ++ ++int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version) ++{ ++ const char * const plugin_name = plugin_info->base_name; ++ const int argc = plugin_info->argc; ++ const struct plugin_argument * const argv = plugin_info->argv; ++ int i; ++ ++ if (!plugin_default_version_check(version, &gcc_version)) { ++ error(G_("incompatible gcc/plugin versions")); ++ return 1; ++ } ++ ++ register_callback(plugin_name, PLUGIN_INFO, NULL, &checker_plugin_info); ++ ++ for (i = 0; i < argc; ++i) ++ error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key); ++ ++ if (TARGET_64BIT == 0) ++ return 0; ++ ++ register_callback(plugin_name, PLUGIN_PRAGMAS, register_checker_address_spaces, NULL); ++ ++ return 0; ++} +diff --git a/tools/gcc/colorize_plugin.c b/tools/gcc/colorize_plugin.c +new file mode 100644 +index 0000000..846aeb0 +--- /dev/null ++++ b/tools/gcc/colorize_plugin.c +@@ -0,0 +1,148 @@ ++/* ++ * Copyright 2012 by PaX Team <pageexec(a)freemail.hu> ++ * Licensed under the GPL v2 ++ * ++ * Note: the choice of the license means that the compilation process is ++ * NOT 'eligible' as defined by gcc's library exception to the GPL v3, ++ * but for the kernel it doesn't matter since it doesn't link against ++ * any of the gcc libraries ++ * ++ * gcc plugin to colorize diagnostic output ++ * ++ */ ++ ++#include "gcc-plugin.h" ++#include "config.h" ++#include "system.h" ++#include "coretypes.h" ++#include "tree.h" ++#include "tree-pass.h" ++#include "flags.h" ++#include "intl.h" ++#include "toplev.h" ++#include "plugin.h" ++#include "diagnostic.h" ++#include "plugin-version.h" ++#include "tm.h" ++ ++int plugin_is_GPL_compatible; ++ ++static struct plugin_info colorize_plugin_info = { ++ .version = "201203092200", ++ .help = NULL, ++}; ++ ++#define GREEN "\033[32m\033[2m" ++#define LIGHTGREEN "\033[32m\033[1m" ++#define YELLOW "\033[33m\033[2m" ++#define LIGHTYELLOW "\033[33m\033[1m" ++#define RED "\033[31m\033[2m" ++#define LIGHTRED "\033[31m\033[1m" ++#define BLUE "\033[34m\033[2m" ++#define LIGHTBLUE "\033[34m\033[1m" ++#define BRIGHT "\033[m\033[1m" ++#define NORMAL "\033[m" ++ ++static diagnostic_starter_fn old_starter; ++static diagnostic_finalizer_fn old_finalizer; ++ ++static void start_colorize(diagnostic_context *context, diagnostic_info *diagnostic) ++{ ++ const char *color; ++ char *newprefix; ++ ++ switch (diagnostic->kind) { ++ case DK_NOTE: ++ color = LIGHTBLUE; ++ break; ++ ++ case DK_PEDWARN: ++ case DK_WARNING: ++ color = LIGHTYELLOW; ++ break; ++ ++ case DK_ERROR: ++ case DK_FATAL: ++ case DK_ICE: ++ case DK_PERMERROR: ++ case DK_SORRY: ++ color = LIGHTRED; ++ break; ++ ++ default: ++ color = NORMAL; ++ } ++ ++ old_starter(context, diagnostic); ++ if (-1 == asprintf(&newprefix, "%s%s" NORMAL, color, context->printer->prefix)) ++ return; ++ pp_destroy_prefix(context->printer); ++ pp_set_prefix(context->printer, newprefix); ++} ++ ++static void finalize_colorize(diagnostic_context *context, diagnostic_info *diagnostic) ++{ ++ old_finalizer(context, diagnostic); ++} ++ ++static void colorize_arm(void) ++{ ++ old_starter = diagnostic_starter(global_dc); ++ old_finalizer = diagnostic_finalizer(global_dc); ++ ++ diagnostic_starter(global_dc) = start_colorize; ++ diagnostic_finalizer(global_dc) = finalize_colorize; ++} ++ ++static unsigned int execute_colorize_rearm(void) ++{ ++ if (diagnostic_starter(global_dc) == start_colorize) ++ return 0; ++ ++ colorize_arm(); ++ return 0; ++} ++ ++struct simple_ipa_opt_pass pass_ipa_colorize_rearm = { ++ .pass = { ++ .type = SIMPLE_IPA_PASS, ++ .name = "colorize_rearm", ++ .gate = NULL, ++ .execute = execute_colorize_rearm, ++ .sub = NULL, ++ .next = NULL, ++ .static_pass_number = 0, ++ .tv_id = TV_NONE, ++ .properties_required = 0, ++ .properties_provided = 0, ++ .properties_destroyed = 0, ++ .todo_flags_start = 0, ++ .todo_flags_finish = 0 ++ } ++}; ++ ++static void colorize_start_unit(void *gcc_data, void *user_data) ++{ ++ colorize_arm(); ++} ++ ++int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version) ++{ ++ const char * const plugin_name = plugin_info->base_name; ++ struct register_pass_info colorize_rearm_pass_info = { ++ .pass = &pass_ipa_colorize_rearm.pass, ++ .reference_pass_name = "*free_lang_data", ++ .ref_pass_instance_number = 1, ++ .pos_op = PASS_POS_INSERT_AFTER ++ }; ++ ++ if (!plugin_default_version_check(version, &gcc_version)) { ++ error(G_("incompatible gcc/plugin versions")); ++ return 1; ++ } ++ ++ register_callback(plugin_name, PLUGIN_INFO, NULL, &colorize_plugin_info); ++ register_callback(plugin_name, PLUGIN_START_UNIT, &colorize_start_unit, NULL); ++ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &colorize_rearm_pass_info); ++ return 0; ++} +diff --git a/tools/gcc/constify_plugin.c b/tools/gcc/constify_plugin.c +new file mode 100644 +index 0000000..048d4ff +--- /dev/null ++++ b/tools/gcc/constify_plugin.c +@@ -0,0 +1,328 @@ ++/* ++ * Copyright 2011 by Emese Revfy <re.emese(a)gmail.com> ++ * Copyright 2011 by PaX Team <pageexec(a)freemail.hu> ++ * Licensed under the GPL v2, or (at your option) v3 ++ * ++ * This gcc plugin constifies all structures which contain only function pointers or are explicitly marked for constification. ++ * ++ * Homepage: ++ * http://www.grsecurity.net/~ephox/const_plugin/ ++ * ++ * Usage: ++ * $ gcc -I`gcc -print-file-name=plugin`/include -fPIC -shared -O2 -o constify_plugin.so constify_plugin.c ++ * $ gcc -fplugin=constify_plugin.so test.c -O2 ++ */ ++ ++#include "gcc-plugin.h" ++#include "config.h" ++#include "system.h" ++#include "coretypes.h" ++#include "tree.h" ++#include "tree-pass.h" ++#include "flags.h" ++#include "intl.h" ++#include "toplev.h" ++#include "plugin.h" ++#include "diagnostic.h" ++#include "plugin-version.h" ++#include "tm.h" ++#include "function.h" ++#include "basic-block.h" ++#include "gimple.h" ++#include "rtl.h" ++#include "emit-rtl.h" ++#include "tree-flow.h" ++ ++#define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1(TYPE) ++ ++int plugin_is_GPL_compatible; ++ ++static struct plugin_info const_plugin_info = { ++ .version = "201205300030", ++ .help = "no-constify\tturn off constification\n", ++}; ++ ++static void deconstify_tree(tree node); ++ ++static void deconstify_type(tree type) ++{ ++ tree field; ++ ++ for (field = TYPE_FIELDS(type); field; field = TREE_CHAIN(field)) { ++ tree type = TREE_TYPE(field); ++ ++ if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE) ++ continue; ++ if (!TYPE_READONLY(type)) ++ continue; ++ ++ deconstify_tree(field); ++ } ++ TYPE_READONLY(type) = 0; ++ C_TYPE_FIELDS_READONLY(type) = 0; ++} ++ ++static void deconstify_tree(tree node) ++{ ++ tree old_type, new_type, field; ++ ++ old_type = TREE_TYPE(node); ++ ++ gcc_assert(TYPE_READONLY(old_type) && (TYPE_QUALS(old_type) & TYPE_QUAL_CONST)); ++ ++ new_type = build_qualified_type(old_type, TYPE_QUALS(old_type) & ~TYPE_QUAL_CONST); ++ TYPE_FIELDS(new_type) = copy_list(TYPE_FIELDS(new_type)); ++ for (field = TYPE_FIELDS(new_type); field; field = TREE_CHAIN(field)) ++ DECL_FIELD_CONTEXT(field) = new_type; ++ ++ deconstify_type(new_type); ++ ++ TREE_READONLY(node) = 0; ++ TREE_TYPE(node) = new_type; ++} ++ ++static tree handle_no_const_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs) ++{ ++ tree type; ++ ++ *no_add_attrs = true; ++ if (TREE_CODE(*node) == FUNCTION_DECL) { ++ error("%qE attribute does not apply to functions", name); ++ return NULL_TREE; ++ } ++ ++ if (TREE_CODE(*node) == VAR_DECL) { ++ error("%qE attribute does not apply to variables", name); ++ return NULL_TREE; ++ } ++ ++ if (TYPE_P(*node)) { ++ if (TREE_CODE(*node) == RECORD_TYPE || TREE_CODE(*node) == UNION_TYPE) ++ *no_add_attrs = false; ++ else ++ error("%qE attribute applies to struct and union types only", name); ++ return NULL_TREE; ++ } ++ ++ type = TREE_TYPE(*node); ++ ++ if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE) { ++ error("%qE attribute applies to struct and union types only", name); ++ return NULL_TREE; ++ } ++ ++ if (lookup_attribute(IDENTIFIER_POINTER(name), TYPE_ATTRIBUTES(type))) { ++ error("%qE attribute is already applied to the type", name); ++ return NULL_TREE; ++ } ++ ++ if (TREE_CODE(*node) == TYPE_DECL && !TYPE_READONLY(type)) { ++ error("%qE attribute used on type that is not constified", name); ++ return NULL_TREE; ++ } ++ ++ if (TREE_CODE(*node) == TYPE_DECL) { ++ deconstify_tree(*node); ++ return NULL_TREE; ++ } ++ ++ return NULL_TREE; ++} ++ ++static void constify_type(tree type) ++{ ++ TYPE_READONLY(type) = 1; ++ C_TYPE_FIELDS_READONLY(type) = 1; ++} ++ ++static tree handle_do_const_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs) ++{ ++ *no_add_attrs = true; ++ if (!TYPE_P(*node)) { ++ error("%qE attribute applies to types only", name); ++ return NULL_TREE; ++ } ++ ++ if (TREE_CODE(*node) != RECORD_TYPE && TREE_CODE(*node) != UNION_TYPE) { ++ error("%qE attribute applies to struct and union types only", name); ++ return NULL_TREE; ++ } ++ ++ *no_add_attrs = false; ++ constify_type(*node); ++ return NULL_TREE; ++} ++ ++static struct attribute_spec no_const_attr = { ++ .name = "no_const", ++ .min_length = 0, ++ .max_length = 0, ++ .decl_required = false, ++ .type_required = false, ++ .function_type_required = false, ++ .handler = handle_no_const_attribute, ++#if BUILDING_GCC_VERSION >= 4007 ++ .affects_type_identity = true ++#endif ++}; ++ ++static struct attribute_spec do_const_attr = { ++ .name = "do_const", ++ .min_length = 0, ++ .max_length = 0, ++ .decl_required = false, ++ .type_required = false, ++ .function_type_required = false, ++ .handler = handle_do_const_attribute, ++#if BUILDING_GCC_VERSION >= 4007 ++ .affects_type_identity = true ++#endif ++}; ++ ++static void register_attributes(void *event_data, void *data) ++{ ++ register_attribute(&no_const_attr); ++ register_attribute(&do_const_attr); ++} ++ ++static bool is_fptr(tree field) ++{ ++ tree ptr = TREE_TYPE(field); ++ ++ if (TREE_CODE(ptr) != POINTER_TYPE) ++ return false; ++ ++ return TREE_CODE(TREE_TYPE(ptr)) == FUNCTION_TYPE; ++} ++ ++static bool walk_struct(tree node) ++{ ++ tree field; ++ ++ if (TYPE_FIELDS(node) == NULL_TREE) ++ return false; ++ ++ if (lookup_attribute("no_const", TYPE_ATTRIBUTES(node))) { ++ gcc_assert(!TYPE_READONLY(node)); ++ deconstify_type(node); ++ return false; ++ } ++ ++ for (field = TYPE_FIELDS(node); field; field = TREE_CHAIN(field)) { ++ tree type = TREE_TYPE(field); ++ enum tree_code code = TREE_CODE(type); ++ if (code == RECORD_TYPE || code == UNION_TYPE) { ++ if (!(walk_struct(type))) ++ return false; ++ } else if (!is_fptr(field) && !TREE_READONLY(field)) ++ return false; ++ } ++ return true; ++} ++ ++static void finish_type(void *event_data, void *data) ++{ ++ tree type = (tree)event_data; ++ ++ if (type == NULL_TREE) ++ return; ++ ++ if (TYPE_READONLY(type)) ++ return; ++ ++ if (walk_struct(type)) ++ constify_type(type); ++} ++ ++static unsigned int check_local_variables(void); ++ ++struct gimple_opt_pass pass_local_variable = { ++ { ++ .type = GIMPLE_PASS, ++ .name = "check_local_variables", ++ .gate = NULL, ++ .execute = check_local_variables, ++ .sub = NULL, ++ .next = NULL, ++ .static_pass_number = 0, ++ .tv_id = TV_NONE, ++ .properties_required = 0, ++ .properties_provided = 0, ++ .properties_destroyed = 0, ++ .todo_flags_start = 0, ++ .todo_flags_finish = 0 ++ } ++}; ++ ++static unsigned int check_local_variables(void) ++{ ++ tree var; ++ referenced_var_iterator rvi; ++ ++#if BUILDING_GCC_VERSION == 4005 ++ FOR_EACH_REFERENCED_VAR(var, rvi) { ++#else ++ FOR_EACH_REFERENCED_VAR(cfun, var, rvi) { ++#endif ++ tree type = TREE_TYPE(var); ++ ++ if (!DECL_P(var) || TREE_STATIC(var) || DECL_EXTERNAL(var)) ++ continue; ++ ++ if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE) ++ continue; ++ ++ if (!TYPE_READONLY(type)) ++ continue; ++ ++// if (lookup_attribute("no_const", DECL_ATTRIBUTES(var))) ++// continue; ++ ++// if (lookup_attribute("no_const", TYPE_ATTRIBUTES(type))) ++// continue; ++ ++ if (walk_struct(type)) { ++ error_at(DECL_SOURCE_LOCATION(var), "constified variable %qE cannot be local", var); ++ return 1; ++ } ++ } ++ return 0; ++} ++ ++int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version) ++{ ++ const char * const plugin_name = plugin_info->base_name; ++ const int argc = plugin_info->argc; ++ const struct plugin_argument * const argv = plugin_info->argv; ++ int i; ++ bool constify = true; ++ ++ struct register_pass_info local_variable_pass_info = { ++ .pass = &pass_local_variable.pass, ++ .reference_pass_name = "*referenced_vars", ++ .ref_pass_instance_number = 1, ++ .pos_op = PASS_POS_INSERT_AFTER ++ }; ++ ++ if (!plugin_default_version_check(version, &gcc_version)) { ++ error(G_("incompatible gcc/plugin versions")); ++ return 1; ++ } ++ ++ for (i = 0; i < argc; ++i) { ++ if (!(strcmp(argv[i].key, "no-constify"))) { ++ constify = false; ++ continue; ++ } ++ error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key); ++ } ++ ++ register_callback(plugin_name, PLUGIN_INFO, NULL, &const_plugin_info); ++ if (constify) { ++ register_callback(plugin_name, PLUGIN_FINISH_TYPE, finish_type, NULL); ++ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &local_variable_pass_info); ++ } ++ register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL); ++ ++ return 0; ++} +diff --git a/tools/gcc/generate_size_overflow_hash.sh b/tools/gcc/generate_size_overflow_hash.sh +new file mode 100644 +index 0000000..a0fe8b2 +--- /dev/null ++++ b/tools/gcc/generate_size_overflow_hash.sh +@@ -0,0 +1,94 @@ ++#!/bin/bash ++ ++# This script generates the hash table (size_overflow_hash.h) for the size_overflow gcc plugin (size_overflow_plugin.c). ++ ++header1="size_overflow_hash.h" ++database="size_overflow_hash.data" ++n=65536 ++ ++usage() { ++cat <<EOF ++usage: $0 options ++OPTIONS: ++ -h|--help help ++ -o header file ++ -d database file ++ -n hash array size ++EOF ++ return 0 ++} ++ ++while true ++do ++ case "$1" in ++ -h|--help) usage && exit 0;; ++ -n) n=$2; shift 2;; ++ -o) header1="$2"; shift 2;; ++ -d) database="$2"; shift 2;; ++ --) shift 1; break ;; ++ *) break ;; ++ esac ++done ++ ++create_defines() { ++ for i in `seq 1 10` ++ do ++ echo -e "#define PARAM"$i" (1U << "$i")" >> "$header1" ++ done ++ echo >> "$header1" ++} ++ ++create_structs () { ++ rm -f "$header1" ++ ++ create_defines ++ ++ cat "$database" | while read data ++ do ++ data_array=($data) ++ struct_hash_name="${data_array[0]}" ++ funcn="${data_array[1]}" ++ params="${data_array[2]}" ++ next="${data_array[5]}" ++ ++ echo "struct size_overflow_hash $struct_hash_name = {" >> "$header1" ++ ++ echo -e "\t.next\t= $next,\n\t.name\t= \"$funcn\"," >> "$header1" ++ echo -en "\t.param\t= " >> "$header1" ++ line= ++ for param_num in ${params//-/ }; ++ do ++ line="${line}PARAM"$param_num"|" ++ done ++ ++ echo -e "${line%?},\n};\n" >> "$header1" ++ done ++} ++ ++create_headers () { ++ echo "struct size_overflow_hash *size_overflow_hash[$n] = {" >> "$header1" ++} ++ ++create_array_elements () { ++ index=0 ++ grep -v "nohasharray" $database | sort -n -k 4 | while read data ++ do ++ data_array=($data) ++ i="${data_array[3]}" ++ hash="${data_array[4]}" ++ while [[ $index -lt $i ]] ++ do ++ echo -e "\t["$index"]\t= NULL," >> "$header1" ++ index=$(($index + 1)) ++ done ++ index=$(($index + 1)) ++ echo -e "\t["$i"]\t= &"$hash"," >> "$header1" ++ done ++ echo '};' >> $header1 ++} ++ ++create_structs ++create_headers ++create_array_elements ++ ++exit 0 +diff --git a/tools/gcc/kallocstat_plugin.c b/tools/gcc/kallocstat_plugin.c +new file mode 100644 +index 0000000..a86e422 +--- /dev/null ++++ b/tools/gcc/kallocstat_plugin.c +@@ -0,0 +1,167 @@ ++/* ++ * Copyright 2011 by the PaX Team <pageexec(a)freemail.hu> ++ * Licensed under the GPL v2 ++ * ++ * Note: the choice of the license means that the compilation process is ++ * NOT 'eligible' as defined by gcc's library exception to the GPL v3, ++ * but for the kernel it doesn't matter since it doesn't link against ++ * any of the gcc libraries ++ * ++ * gcc plugin to find the distribution of k*alloc sizes ++ * ++ * TODO: ++ * ++ * BUGS: ++ * - none known ++ */ ++#include "gcc-plugin.h" ++#include "config.h" ++#include "system.h" ++#include "coretypes.h" ++#include "tree.h" ++#include "tree-pass.h" ++#include "flags.h" ++#include "intl.h" ++#include "toplev.h" ++#include "plugin.h" ++//#include "expr.h" where are you... ++#include "diagnostic.h" ++#include "plugin-version.h" ++#include "tm.h" ++#include "function.h" ++#include "basic-block.h" ++#include "gimple.h" ++#include "rtl.h" ++#include "emit-rtl.h" ++ ++extern void print_gimple_stmt(FILE *, gimple, int, int); ++ ++int plugin_is_GPL_compatible; ++ ++static const char * const kalloc_functions[] = { ++ "__kmalloc", ++ "kmalloc", ++ "kmalloc_large", ++ "kmalloc_node", ++ "kmalloc_order", ++ "kmalloc_order_trace", ++ "kmalloc_slab", ++ "kzalloc", ++ "kzalloc_node", ++}; ++ ++static struct plugin_info kallocstat_plugin_info = { ++ .version = "201111150100", ++}; ++ ++static unsigned int execute_kallocstat(void); ++ ++static struct gimple_opt_pass kallocstat_pass = { ++ .pass = { ++ .type = GIMPLE_PASS, ++ .name = "kallocstat", ++ .gate = NULL, ++ .execute = execute_kallocstat, ++ .sub = NULL, ++ .next = NULL, ++ .static_pass_number = 0, ++ .tv_id = TV_NONE, ++ .properties_required = 0, ++ .properties_provided = 0, ++ .properties_destroyed = 0, ++ .todo_flags_start = 0, ++ .todo_flags_finish = 0 ++ } ++}; ++ ++static bool is_kalloc(const char *fnname) ++{ ++ size_t i; ++ ++ for (i = 0; i < ARRAY_SIZE(kalloc_functions); i++) ++ if (!strcmp(fnname, kalloc_functions[i])) ++ return true; ++ return false; ++} ++ ++static unsigned int execute_kallocstat(void) ++{ ++ basic_block bb; ++ ++ // 1. loop through BBs and GIMPLE statements ++ FOR_EACH_BB(bb) { ++ gimple_stmt_iterator gsi; ++ for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) { ++ // gimple match: ++ tree fndecl, size; ++ gimple call_stmt; ++ const char *fnname; ++ ++ // is it a call ++ call_stmt = gsi_stmt(gsi); ++ if (!is_gimple_call(call_stmt)) ++ continue; ++ fndecl = gimple_call_fndecl(call_stmt); ++ if (fndecl == NULL_TREE) ++ continue; ++ if (TREE_CODE(fndecl) != FUNCTION_DECL) ++ continue; ++ ++ // is it a call to k*alloc ++ fnname = IDENTIFIER_POINTER(DECL_NAME(fndecl)); ++ if (!is_kalloc(fnname)) ++ continue; ++ ++ // is the size arg the result of a simple const assignment ++ size = gimple_call_arg(call_stmt, 0); ++ while (true) { ++ gimple def_stmt; ++ expanded_location xloc; ++ size_t size_val; ++ ++ if (TREE_CODE(size) != SSA_NAME) ++ break; ++ def_stmt = SSA_NAME_DEF_STMT(size); ++ if (!def_stmt || !is_gimple_assign(def_stmt)) ++ break; ++ if (gimple_num_ops(def_stmt) != 2) ++ break; ++ size = gimple_assign_rhs1(def_stmt); ++ if (!TREE_CONSTANT(size)) ++ continue; ++ xloc = expand_location(gimple_location(def_stmt)); ++ if (!xloc.file) ++ xloc = expand_location(DECL_SOURCE_LOCATION(current_function_decl)); ++ size_val = TREE_INT_CST_LOW(size); ++ fprintf(stderr, "kallocsize: %8zu %8zx %s %s:%u\n", size_val, size_val, fnname, xloc.file, xloc.line); ++ break; ++ } ++//print_gimple_stmt(stderr, call_stmt, 0, TDF_LINENO); ++//debug_tree(gimple_call_fn(call_stmt)); ++//print_node(stderr, "pax", fndecl, 4); ++ } ++ } ++ ++ return 0; ++} ++ ++int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version) ++{ ++ const char * const plugin_name = plugin_info->base_name; ++ struct register_pass_info kallocstat_pass_info = { ++ .pass = &kallocstat_pass.pass, ++ .reference_pass_name = "ssa", ++ .ref_pass_instance_number = 1, ++ .pos_op = PASS_POS_INSERT_AFTER ++ }; ++ ++ if (!plugin_default_version_check(version, &gcc_version)) { ++ error(G_("incompatible gcc/plugin versions")); ++ return 1; ++ } ++ ++ register_callback(plugin_name, PLUGIN_INFO, NULL, &kallocstat_plugin_info); ++ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kallocstat_pass_info); ++ ++ return 0; ++} +diff --git a/tools/gcc/kernexec_plugin.c b/tools/gcc/kernexec_plugin.c +new file mode 100644 +index 0000000..98011fa +--- /dev/null ++++ b/tools/gcc/kernexec_plugin.c +@@ -0,0 +1,427 @@ ++/* ++ * Copyright 2011 by the PaX Team <pageexec(a)freemail.hu> ++ * Licensed under the GPL v2 ++ * ++ * Note: the choice of the license means that the compilation process is ++ * NOT 'eligible' as defined by gcc's library exception to the GPL v3, ++ * but for the kernel it doesn't matter since it doesn't link against ++ * any of the gcc libraries ++ * ++ * gcc plugin to make KERNEXEC/amd64 almost as good as it is on i386 ++ * ++ * TODO: ++ * ++ * BUGS: ++ * - none known ++ */ ++#include "gcc-plugin.h" ++#include "config.h" ++#include "system.h" ++#include "coretypes.h" ++#include "tree.h" ++#include "tree-pass.h" ++#include "flags.h" ++#include "intl.h" ++#include "toplev.h" ++#include "plugin.h" ++//#include "expr.h" where are you... ++#include "diagnostic.h" ++#include "plugin-version.h" ++#include "tm.h" ++#include "function.h" ++#include "basic-block.h" ++#include "gimple.h" ++#include "rtl.h" ++#include "emit-rtl.h" ++#include "tree-flow.h" ++ ++extern void print_gimple_stmt(FILE *, gimple, int, int); ++extern rtx emit_move_insn(rtx x, rtx y); ++ ++int plugin_is_GPL_compatible; ++ ++static struct plugin_info kernexec_plugin_info = { ++ .version = "201111291120", ++ .help = "method=[bts|or]\tinstrumentation method\n" ++}; ++ ++static unsigned int execute_kernexec_reload(void); ++static unsigned int execute_kernexec_fptr(void); ++static unsigned int execute_kernexec_retaddr(void); ++static bool kernexec_cmodel_check(void); ++ ++static void (*kernexec_instrument_fptr)(gimple_stmt_iterator *); ++static void (*kernexec_instrument_retaddr)(rtx); ++ ++static struct gimple_opt_pass kernexec_reload_pass = { ++ .pass = { ++ .type = GIMPLE_PASS, ++ .name = "kernexec_reload", ++ .gate = kernexec_cmodel_check, ++ .execute = execute_kernexec_reload, ++ .sub = NULL, ++ .next = NULL, ++ .static_pass_number = 0, ++ .tv_id = TV_NONE, ++ .properties_required = 0, ++ .properties_provided = 0, ++ .properties_destroyed = 0, ++ .todo_flags_start = 0, ++ .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_remove_unused_locals | TODO_update_ssa_no_phi ++ } ++}; ++ ++static struct gimple_opt_pass kernexec_fptr_pass = { ++ .pass = { ++ .type = GIMPLE_PASS, ++ .name = "kernexec_fptr", ++ .gate = kernexec_cmodel_check, ++ .execute = execute_kernexec_fptr, ++ .sub = NULL, ++ .next = NULL, ++ .static_pass_number = 0, ++ .tv_id = TV_NONE, ++ .properties_required = 0, ++ .properties_provided = 0, ++ .properties_destroyed = 0, ++ .todo_flags_start = 0, ++ .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_remove_unused_locals | TODO_update_ssa_no_phi ++ } ++}; ++ ++static struct rtl_opt_pass kernexec_retaddr_pass = { ++ .pass = { ++ .type = RTL_PASS, ++ .name = "kernexec_retaddr", ++ .gate = kernexec_cmodel_check, ++ .execute = execute_kernexec_retaddr, ++ .sub = NULL, ++ .next = NULL, ++ .static_pass_number = 0, ++ .tv_id = TV_NONE, ++ .properties_required = 0, ++ .properties_provided = 0, ++ .properties_destroyed = 0, ++ .todo_flags_start = 0, ++ .todo_flags_finish = TODO_dump_func | TODO_ggc_collect ++ } ++}; ++ ++static bool kernexec_cmodel_check(void) ++{ ++ tree section; ++ ++ if (ix86_cmodel != CM_KERNEL) ++ return false; ++ ++ section = lookup_attribute("section", DECL_ATTRIBUTES(current_function_decl)); ++ if (!section || !TREE_VALUE(section)) ++ return true; ++ ++ section = TREE_VALUE(TREE_VALUE(section)); ++ if (strncmp(TREE_STRING_POINTER(section), ".vsyscall_", 10)) ++ return true; ++ ++ return false; ++} ++ ++/* ++ * add special KERNEXEC instrumentation: reload %r10 after it has been clobbered ++ */ ++static void kernexec_reload_fptr_mask(gimple_stmt_iterator *gsi) ++{ ++ gimple asm_movabs_stmt; ++ ++ // build asm volatile("movabs $0x8000000000000000, %%r10\n\t" : : : ); ++ asm_movabs_stmt = gimple_build_asm_vec("movabs $0x8000000000000000, %%r10\n\t", NULL, NULL, NULL, NULL); ++ gimple_asm_set_volatile(asm_movabs_stmt, true); ++ gsi_insert_after(gsi, asm_movabs_stmt, GSI_CONTINUE_LINKING); ++ update_stmt(asm_movabs_stmt); ++} ++ ++/* ++ * find all asm() stmts that clobber r10 and add a reload of r10 ++ */ ++static unsigned int execute_kernexec_reload(void) ++{ ++ basic_block bb; ++ ++ // 1. loop through BBs and GIMPLE statements ++ FOR_EACH_BB(bb) { ++ gimple_stmt_iterator gsi; ++ ++ for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) { ++ // gimple match: __asm__ ("" : : : "r10"); ++ gimple asm_stmt; ++ size_t nclobbers; ++ ++ // is it an asm ... ++ asm_stmt = gsi_stmt(gsi); ++ if (gimple_code(asm_stmt) != GIMPLE_ASM) ++ continue; ++ ++ // ... clobbering r10 ++ nclobbers = gimple_asm_nclobbers(asm_stmt); ++ while (nclobbers--) { ++ tree op = gimple_asm_clobber_op(asm_stmt, nclobbers); ++ if (strcmp(TREE_STRING_POINTER(TREE_VALUE(op)), "r10")) ++ continue; ++ kernexec_reload_fptr_mask(&gsi); ++//print_gimple_stmt(stderr, asm_stmt, 0, TDF_LINENO); ++ break; ++ } ++ } ++ } ++ ++ return 0; ++} ++ ++/* ++ * add special KERNEXEC instrumentation: force MSB of fptr to 1, which will produce ++ * a non-canonical address from a userland ptr and will just trigger a GPF on dereference ++ */ ++static void kernexec_instrument_fptr_bts(gimple_stmt_iterator *gsi) ++{ ++ gimple assign_intptr, assign_new_fptr, call_stmt; ++ tree intptr, old_fptr, new_fptr, kernexec_mask; ++ ++ call_stmt = gsi_stmt(*gsi); ++ old_fptr = gimple_call_fn(call_stmt); ++ ++ // create temporary unsigned long variable used for bitops and cast fptr to it ++ intptr = create_tmp_var(long_unsigned_type_node, "kernexec_bts"); ++ add_referenced_var(intptr); ++ mark_sym_for_renaming(intptr); ++ assign_intptr = gimple_build_assign(intptr, fold_convert(long_unsigned_type_node, old_fptr)); ++ gsi_insert_before(gsi, assign_intptr, GSI_SAME_STMT); ++ update_stmt(assign_intptr); ++ ++ // apply logical or to temporary unsigned long and bitmask ++ kernexec_mask = build_int_cstu(long_long_unsigned_type_node, 0x8000000000000000LL); ++// kernexec_mask = build_int_cstu(long_long_unsigned_type_node, 0xffffffff80000000LL); ++ assign_intptr = gimple_build_assign(intptr, fold_build2(BIT_IOR_EXPR, long_long_unsigned_type_node, intptr, kernexec_mask)); ++ gsi_insert_before(gsi, assign_intptr, GSI_SAME_STMT); ++ update_stmt(assign_intptr); ++ ++ // cast temporary unsigned long back to a temporary fptr variable ++ new_fptr = create_tmp_var(TREE_TYPE(old_fptr), "kernexec_fptr"); ++ add_referenced_var(new_fptr); ++ mark_sym_for_renaming(new_fptr); ++ assign_new_fptr = gimple_build_assign(new_fptr, fold_convert(TREE_TYPE(old_fptr), intptr)); ++ gsi_insert_before(gsi, assign_new_fptr, GSI_SAME_STMT); ++ update_stmt(assign_new_fptr); ++ ++ // replace call stmt fn with the new fptr ++ gimple_call_set_fn(call_stmt, new_fptr); ++ update_stmt(call_stmt); ++} ++ ++static void kernexec_instrument_fptr_or(gimple_stmt_iterator *gsi) ++{ ++ gimple asm_or_stmt, call_stmt; ++ tree old_fptr, new_fptr, input, output; ++ VEC(tree, gc) *inputs = NULL; ++ VEC(tree, gc) *outputs = NULL; ++ ++ call_stmt = gsi_stmt(*gsi); ++ old_fptr = gimple_call_fn(call_stmt); ++ ++ // create temporary fptr variable ++ new_fptr = create_tmp_var(TREE_TYPE(old_fptr), "kernexec_or"); ++ add_referenced_var(new_fptr); ++ mark_sym_for_renaming(new_fptr); ++ ++ // build asm volatile("orq %%r10, %0\n\t" : "=r"(new_fptr) : "0"(old_fptr)); ++ input = build_tree_list(NULL_TREE, build_string(2, "0")); ++ input = chainon(NULL_TREE, build_tree_list(input, old_fptr)); ++ output = build_tree_list(NULL_TREE, build_string(3, "=r")); ++ output = chainon(NULL_TREE, build_tree_list(output, new_fptr)); ++ VEC_safe_push(tree, gc, inputs, input); ++ VEC_safe_push(tree, gc, outputs, output); ++ asm_or_stmt = gimple_build_asm_vec("orq %%r10, %0\n\t", inputs, outputs, NULL, NULL); ++ gimple_asm_set_volatile(asm_or_stmt, true); ++ gsi_insert_before(gsi, asm_or_stmt, GSI_SAME_STMT); ++ update_stmt(asm_or_stmt); ++ ++ // replace call stmt fn with the new fptr ++ gimple_call_set_fn(call_stmt, new_fptr); ++ update_stmt(call_stmt); ++} ++ ++/* ++ * find all C level function pointer dereferences and forcibly set the highest bit of the pointer ++ */ ++static unsigned int execute_kernexec_fptr(void) ++{ ++ basic_block bb; ++ ++ // 1. loop through BBs and GIMPLE statements ++ FOR_EACH_BB(bb) { ++ gimple_stmt_iterator gsi; ++ ++ for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) { ++ // gimple match: h_1 = get_fptr (); D.2709_3 = h_1 (x_2(D)); ++ tree fn; ++ gimple call_stmt; ++ ++ // is it a call ... ++ call_stmt = gsi_stmt(gsi); ++ if (!is_gimple_call(call_stmt)) ++ continue; ++ fn = gimple_call_fn(call_stmt); ++ if (TREE_CODE(fn) == ADDR_EXPR) ++ continue; ++ if (TREE_CODE(fn) != SSA_NAME) ++ gcc_unreachable(); ++ ++ // ... through a function pointer ++ fn = SSA_NAME_VAR(fn); ++ if (TREE_CODE(fn) != VAR_DECL && TREE_CODE(fn) != PARM_DECL) ++ continue; ++ fn = TREE_TYPE(fn); ++ if (TREE_CODE(fn) != POINTER_TYPE) ++ continue; ++ fn = TREE_TYPE(fn); ++ if (TREE_CODE(fn) != FUNCTION_TYPE) ++ continue; ++ ++ kernexec_instrument_fptr(&gsi); ++ ++//debug_tree(gimple_call_fn(call_stmt)); ++//print_gimple_stmt(stderr, call_stmt, 0, TDF_LINENO); ++ } ++ } ++ ++ return 0; ++} ++ ++// add special KERNEXEC instrumentation: btsq $63,(%rsp) just before retn ++static void kernexec_instrument_retaddr_bts(rtx insn) ++{ ++ rtx btsq; ++ rtvec argvec, constraintvec, labelvec; ++ int line; ++ ++ // create asm volatile("btsq $63,(%%rsp)":::) ++ argvec = rtvec_alloc(0); ++ constraintvec = rtvec_alloc(0); ++ labelvec = rtvec_alloc(0); ++ line = expand_location(RTL_LOCATION(insn)).line; ++ btsq = gen_rtx_ASM_OPERANDS(VOIDmode, "btsq $63,(%%rsp)", empty_string, 0, argvec, constraintvec, labelvec, line); ++ MEM_VOLATILE_P(btsq) = 1; ++// RTX_FRAME_RELATED_P(btsq) = 1; // not for ASM_OPERANDS ++ emit_insn_before(btsq, insn); ++} ++ ++// add special KERNEXEC instrumentation: orq %r10,(%rsp) just before retn ++static void kernexec_instrument_retaddr_or(rtx insn) ++{ ++ rtx orq; ++ rtvec argvec, constraintvec, labelvec; ++ int line; ++ ++ // create asm volatile("orq %%r10,(%%rsp)":::) ++ argvec = rtvec_alloc(0); ++ constraintvec = rtvec_alloc(0); ++ labelvec = rtvec_alloc(0); ++ line = expand_location(RTL_LOCATION(insn)).line; ++ orq = gen_rtx_ASM_OPERANDS(VOIDmode, "orq %%r10,(%%rsp)", empty_string, 0, argvec, constraintvec, labelvec, line); ++ MEM_VOLATILE_P(orq) = 1; ++// RTX_FRAME_RELATED_P(orq) = 1; // not for ASM_OPERANDS ++ emit_insn_before(orq, insn); ++} ++ ++/* ++ * find all asm level function returns and forcibly set the highest bit of the return address ++ */ ++static unsigned int execute_kernexec_retaddr(void) ++{ ++ rtx insn; ++ ++ // 1. find function returns ++ for (insn = get_insns(); insn; insn = NEXT_INSN(insn)) { ++ // rtl match: (jump_insn 41 40 42 2 (return) fptr.c:42 634 {return_internal} (nil)) ++ // (jump_insn 12 9 11 2 (parallel [ (return) (unspec [ (0) ] UNSPEC_REP) ]) fptr.c:46 635 {return_internal_long} (nil)) ++ rtx body; ++ ++ // is it a retn ++ if (!JUMP_P(insn)) ++ continue; ++ body = PATTERN(insn); ++ if (GET_CODE(body) == PARALLEL) ++ body = XVECEXP(body, 0, 0); ++ if (GET_CODE(body) != RETURN) ++ continue; ++ kernexec_instrument_retaddr(insn); ++ } ++ ++// print_simple_rtl(stderr, get_insns()); ++// print_rtl(stderr, get_insns()); ++ ++ return 0; ++} ++ ++int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version) ++{ ++ const char * const plugin_name = plugin_info->base_name; ++ const int argc = plugin_info->argc; ++ const struct plugin_argument * const argv = plugin_info->argv; ++ int i; ++ struct register_pass_info kernexec_reload_pass_info = { ++ .pass = &kernexec_reload_pass.pass, ++ .reference_pass_name = "ssa", ++ .ref_pass_instance_number = 1, ++ .pos_op = PASS_POS_INSERT_AFTER ++ }; ++ struct register_pass_info kernexec_fptr_pass_info = { ++ .pass = &kernexec_fptr_pass.pass, ++ .reference_pass_name = "ssa", ++ .ref_pass_instance_number = 1, ++ .pos_op = PASS_POS_INSERT_AFTER ++ }; ++ struct register_pass_info kernexec_retaddr_pass_info = { ++ .pass = &kernexec_retaddr_pass.pass, ++ .reference_pass_name = "pro_and_epilogue", ++ .ref_pass_instance_number = 1, ++ .pos_op = PASS_POS_INSERT_AFTER ++ }; ++ ++ if (!plugin_default_version_check(version, &gcc_version)) { ++ error(G_("incompatible gcc/plugin versions")); ++ return 1; ++ } ++ ++ register_callback(plugin_name, PLUGIN_INFO, NULL, &kernexec_plugin_info); ++ ++ if (TARGET_64BIT == 0) ++ return 0; ++ ++ for (i = 0; i < argc; ++i) { ++ if (!strcmp(argv[i].key, "method")) { ++ if (!argv[i].value) { ++ error(G_("no value supplied for option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key); ++ continue; ++ } ++ if (!strcmp(argv[i].value, "bts")) { ++ kernexec_instrument_fptr = kernexec_instrument_fptr_bts; ++ kernexec_instrument_retaddr = kernexec_instrument_retaddr_bts; ++ } else if (!strcmp(argv[i].value, "or")) { ++ kernexec_instrument_fptr = kernexec_instrument_fptr_or; ++ kernexec_instrument_retaddr = kernexec_instrument_retaddr_or; ++ fix_register("r10", 1, 1); ++ } else ++ error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value); ++ continue; ++ } ++ error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key); ++ } ++ if (!kernexec_instrument_fptr || !kernexec_instrument_retaddr) ++ error(G_("no instrumentation method was selected via '-fplugin-arg-%s-method'"), plugin_name); ++ ++ if (kernexec_instrument_fptr == kernexec_instrument_fptr_or) ++ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kernexec_reload_pass_info); ++ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kernexec_fptr_pass_info); ++ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kernexec_retaddr_pass_info); ++ ++ return 0; ++} +diff --git a/tools/gcc/latent_entropy_plugin.c b/tools/gcc/latent_entropy_plugin.c +new file mode 100644 +index 0000000..b8008f7 +--- /dev/null ++++ b/tools/gcc/latent_entropy_plugin.c +@@ -0,0 +1,295 @@ ++/* ++ * Copyright 2012 by the PaX Team <pageexec(a)freemail.hu> ++ * Licensed under the GPL v2 ++ * ++ * Note: the choice of the license means that the compilation process is ++ * NOT 'eligible' as defined by gcc's library exception to the GPL v3, ++ * but for the kernel it doesn't matter since it doesn't link against ++ * any of the gcc libraries ++ * ++ * gcc plugin to help generate a little bit of entropy from program state, ++ * used during boot in the kernel ++ * ++ * TODO: ++ * - add ipa pass to identify not explicitly marked candidate functions ++ * - mix in more program state (function arguments/return values, loop variables, etc) ++ * - more instrumentation control via attribute parameters ++ * ++ * BUGS: ++ * - LTO needs -flto-partition=none for now ++ */ ++#include "gcc-plugin.h" ++#include "config.h" ++#include "system.h" ++#include "coretypes.h" ++#include "tree.h" ++#include "tree-pass.h" ++#include "flags.h" ++#include "intl.h" ++#include "toplev.h" ++#include "plugin.h" ++//#include "expr.h" where are you... ++#include "diagnostic.h" ++#include "plugin-version.h" ++#include "tm.h" ++#include "function.h" ++#include "basic-block.h" ++#include "gimple.h" ++#include "rtl.h" ++#include "emit-rtl.h" ++#include "tree-flow.h" ++ ++int plugin_is_GPL_compatible; ++ ++static tree latent_entropy_decl; ++ ++static struct plugin_info latent_entropy_plugin_info = { ++ .version = "201207271820", ++ .help = NULL ++}; ++ ++static unsigned int execute_latent_entropy(void); ++static bool gate_latent_entropy(void); ++ ++static struct gimple_opt_pass latent_entropy_pass = { ++ .pass = { ++ .type = GIMPLE_PASS, ++ .name = "latent_entropy", ++ .gate = gate_latent_entropy, ++ .execute = execute_latent_entropy, ++ .sub = NULL, ++ .next = NULL, ++ .static_pass_number = 0, ++ .tv_id = TV_NONE, ++ .properties_required = PROP_gimple_leh | PROP_cfg, ++ .properties_provided = 0, ++ .properties_destroyed = 0, ++ .todo_flags_start = 0, //TODO_verify_ssa | TODO_verify_flow | TODO_verify_stmts, ++ .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_update_ssa ++ } ++}; ++ ++static tree handle_latent_entropy_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs) ++{ ++ if (TREE_CODE(*node) != FUNCTION_DECL) { ++ *no_add_attrs = true; ++ error("%qE attribute only applies to functions", name); ++ } ++ return NULL_TREE; ++} ++ ++static struct attribute_spec latent_entropy_attr = { ++ .name = "latent_entropy", ++ .min_length = 0, ++ .max_length = 0, ++ .decl_required = true, ++ .type_required = false, ++ .function_type_required = false, ++ .handler = handle_latent_entropy_attribute, ++#if BUILDING_GCC_VERSION >= 4007 ++ .affects_type_identity = false ++#endif ++}; ++ ++static void register_attributes(void *event_data, void *data) ++{ ++ register_attribute(&latent_entropy_attr); ++} ++ ++static bool gate_latent_entropy(void) ++{ ++ tree latent_entropy_attr; ++ ++ latent_entropy_attr = lookup_attribute("latent_entropy", DECL_ATTRIBUTES(current_function_decl)); ++ return latent_entropy_attr != NULL_TREE; ++} ++ ++static unsigned HOST_WIDE_INT seed; ++static unsigned HOST_WIDE_INT get_random_const(void) ++{ ++ seed = (seed >> 1U) ^ (-(seed & 1ULL) & 0xD800000000000000ULL); ++ return seed; ++} ++ ++static enum tree_code get_op(tree *rhs) ++{ ++ static enum tree_code op; ++ unsigned HOST_WIDE_INT random_const; ++ ++ random_const = get_random_const(); ++ ++ switch (op) { ++ case BIT_XOR_EXPR: ++ op = PLUS_EXPR; ++ break; ++ ++ case PLUS_EXPR: ++ if (rhs) { ++ op = LROTATE_EXPR; ++ random_const &= HOST_BITS_PER_WIDE_INT - 1; ++ break; ++ } ++ ++ case LROTATE_EXPR: ++ default: ++ op = BIT_XOR_EXPR; ++ break; ++ } ++ if (rhs) ++ *rhs = build_int_cstu(unsigned_intDI_type_node, random_const); ++ return op; ++} ++ ++static void perturb_local_entropy(basic_block bb, tree local_entropy) ++{ ++ gimple_stmt_iterator gsi; ++ gimple assign; ++ tree addxorrol, rhs; ++ enum tree_code op; ++ ++ op = get_op(&rhs); ++ addxorrol = fold_build2_loc(UNKNOWN_LOCATION, op, unsigned_intDI_type_node, local_entropy, rhs); ++ assign = gimple_build_assign(local_entropy, addxorrol); ++ find_referenced_vars_in(assign); ++//debug_bb(bb); ++ gsi = gsi_after_labels(bb); ++ gsi_insert_before(&gsi, assign, GSI_NEW_STMT); ++ update_stmt(assign); ++} ++ ++static void perturb_latent_entropy(basic_block bb, tree rhs) ++{ ++ gimple_stmt_iterator gsi; ++ gimple assign; ++ tree addxorrol, temp; ++ ++ // 1. create temporary copy of latent_entropy ++ temp = create_tmp_var(unsigned_intDI_type_node, "temp_latent_entropy"); ++ add_referenced_var(temp); ++ mark_sym_for_renaming(temp); ++ ++ // 2. read... ++ assign = gimple_build_assign(temp, latent_entropy_decl); ++ find_referenced_vars_in(assign); ++ gsi = gsi_after_labels(bb); ++ gsi_insert_after(&gsi, assign, GSI_NEW_STMT); ++ update_stmt(assign); ++ ++ // 3. ...modify... ++ addxorrol = fold_build2_loc(UNKNOWN_LOCATION, get_op(NULL), unsigned_intDI_type_node, temp, rhs); ++ assign = gimple_build_assign(temp, addxorrol); ++ find_referenced_vars_in(assign); ++ gsi_insert_after(&gsi, assign, GSI_NEW_STMT); ++ update_stmt(assign); ++ ++ // 4. ...write latent_entropy ++ assign = gimple_build_assign(latent_entropy_decl, temp); ++ find_referenced_vars_in(assign); ++ gsi_insert_after(&gsi, assign, GSI_NEW_STMT); ++ update_stmt(assign); ++} ++ ++static unsigned int execute_latent_entropy(void) ++{ ++ basic_block bb; ++ gimple assign; ++ gimple_stmt_iterator gsi; ++ tree local_entropy; ++ ++ if (!latent_entropy_decl) { ++ struct varpool_node *node; ++ ++ for (node = varpool_nodes; node; node = node->next) { ++ tree var = node->decl; ++ if (strcmp(IDENTIFIER_POINTER(DECL_NAME(var)), "latent_entropy")) ++ continue; ++ latent_entropy_decl = var; ++// debug_tree(var); ++ break; ++ } ++ if (!latent_entropy_decl) { ++// debug_tree(current_function_decl); ++ return 0; ++ } ++ } ++ ++//fprintf(stderr, "latent_entropy: %s\n", IDENTIFIER_POINTER(DECL_NAME(current_function_decl))); ++ ++ // 1. create local entropy variable ++ local_entropy = create_tmp_var(unsigned_intDI_type_node, "local_entropy"); ++ add_referenced_var(local_entropy); ++ mark_sym_for_renaming(local_entropy); ++ ++ // 2. initialize local entropy variable ++ bb = split_block_after_labels(ENTRY_BLOCK_PTR)->dest; ++ if (dom_info_available_p(CDI_DOMINATORS)) ++ set_immediate_dominator(CDI_DOMINATORS, bb, ENTRY_BLOCK_PTR); ++ gsi = gsi_start_bb(bb); ++ ++ assign = gimple_build_assign(local_entropy, build_int_cstu(unsigned_intDI_type_node, get_random_const())); ++// gimple_set_location(assign, loc); ++ find_referenced_vars_in(assign); ++ gsi_insert_after(&gsi, assign, GSI_NEW_STMT); ++ update_stmt(assign); ++ bb = bb->next_bb; ++ ++ // 3. instrument each BB with an operation on the local entropy variable ++ while (bb != EXIT_BLOCK_PTR) { ++ perturb_local_entropy(bb, local_entropy); ++ bb = bb->next_bb; ++ }; ++ ++ // 4. mix local entropy into the global entropy variable ++ perturb_latent_entropy(EXIT_BLOCK_PTR->prev_bb, local_entropy); ++ return 0; ++} ++ ++static void start_unit_callback(void *gcc_data, void *user_data) ++{ ++#if BUILDING_GCC_VERSION >= 4007 ++ seed = get_random_seed(false); ++#else ++ sscanf(get_random_seed(false), "%" HOST_WIDE_INT_PRINT "x", &seed); ++ seed *= seed; ++#endif ++ ++ if (in_lto_p) ++ return; ++ ++ // extern u64 latent_entropy ++ latent_entropy_decl = build_decl(UNKNOWN_LOCATION, VAR_DECL, get_identifier("latent_entropy"), unsigned_intDI_type_node); ++ ++ TREE_STATIC(latent_entropy_decl) = 1; ++ TREE_PUBLIC(latent_entropy_decl) = 1; ++ TREE_USED(latent_entropy_decl) = 1; ++ TREE_THIS_VOLATILE(latent_entropy_decl) = 1; ++ DECL_EXTERNAL(latent_entropy_decl) = 1; ++ DECL_ARTIFICIAL(latent_entropy_decl) = 0; ++ DECL_INITIAL(latent_entropy_decl) = NULL; ++// DECL_ASSEMBLER_NAME(latent_entropy_decl); ++// varpool_finalize_decl(latent_entropy_decl); ++// varpool_mark_needed_node(latent_entropy_decl); ++} ++ ++int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version) ++{ ++ const char * const plugin_name = plugin_info->base_name; ++ struct register_pass_info latent_entropy_pass_info = { ++ .pass = &latent_entropy_pass.pass, ++ .reference_pass_name = "optimized", ++ .ref_pass_instance_number = 1, ++ .pos_op = PASS_POS_INSERT_BEFORE ++ }; ++ ++ if (!plugin_default_version_check(version, &gcc_version)) { ++ error(G_("incompatible gcc/plugin versions")); ++ return 1; ++ } ++ ++ register_callback(plugin_name, PLUGIN_INFO, NULL, &latent_entropy_plugin_info); ++ register_callback ("start_unit", PLUGIN_START_UNIT, &start_unit_callback, NULL); ++ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &latent_entropy_pass_info); ++ register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL); ++ ++ return 0; ++} +diff --git a/tools/gcc/size_overflow_hash.data b/tools/gcc/size_overflow_hash.data +new file mode 100644 +index 0000000..daaa86c +--- /dev/null ++++ b/tools/gcc/size_overflow_hash.data +@@ -0,0 +1,2486 @@ ++_000001_hash alloc_dr 2 65495 _000001_hash NULL ++_000002_hash __copy_from_user 3 10918 _000002_hash NULL ++_000003_hash copy_from_user 3 17559 _000003_hash NULL ++_000004_hash __copy_from_user_inatomic 3 4365 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* ++ * Usage: ++ * $ gcc -I`gcc -print-file-name=plugin`/include/c-family -I`gcc -print-file-name=plugin`/include -fPIC -shared -O2 -ggdb -Wall -W -Wno-missing-field-initializers -o size_overflow_plugin.so size_overflow_plugin.c ++ * $ gcc -fplugin=size_overflow_plugin.so test.c -O2 ++ */ ++ ++#include "gcc-plugin.h" ++#include "config.h" ++#include "system.h" ++#include "coretypes.h" ++#include "tree.h" ++#include "tree-pass.h" ++#include "intl.h" ++#include "plugin-version.h" ++#include "tm.h" ++#include "toplev.h" ++#include "function.h" ++#include "tree-flow.h" ++#include "plugin.h" ++#include "gimple.h" ++#include "c-common.h" ++#include "diagnostic.h" ++#include "cfgloop.h" ++ ++struct size_overflow_hash { ++ struct size_overflow_hash *next; ++ const char *name; ++ unsigned int param; ++}; ++ ++#include "size_overflow_hash.h" ++ ++#define __unused __attribute__((__unused__)) ++#define NAME(node) IDENTIFIER_POINTER(DECL_NAME(node)) ++#define NAME_LEN(node) IDENTIFIER_LENGTH(DECL_NAME(node)) ++#define BEFORE_STMT true ++#define AFTER_STMT false ++#define CREATE_NEW_VAR NULL_TREE ++#define CODES_LIMIT 32 ++#define MAX_PARAM 10 ++ ++#if BUILDING_GCC_VERSION == 4005 ++#define DECL_CHAIN(NODE) (TREE_CHAIN(DECL_MINIMAL_CHECK(NODE))) ++#endif ++ ++int plugin_is_GPL_compatible; ++void debug_gimple_stmt(gimple gs); ++ ++static tree expand(struct pointer_set_t *visited, bool *potentionally_overflowed, tree var); ++static tree signed_size_overflow_type; ++static tree unsigned_size_overflow_type; ++static tree report_size_overflow_decl; ++static tree const_char_ptr_type_node; ++static unsigned int handle_function(void); ++ ++static struct plugin_info size_overflow_plugin_info = { ++ .version = "20120618beta", ++ .help = "no-size-overflow\tturn off size overflow checking\n", ++}; ++ ++static tree handle_size_overflow_attribute(tree *node, tree __unused name, tree args, int __unused flags, bool *no_add_attrs) ++{ ++ unsigned int arg_count = type_num_arguments(*node); ++ ++ for (; args; args = TREE_CHAIN(args)) { ++ tree position = TREE_VALUE(args); ++ if (TREE_CODE(position) != INTEGER_CST || TREE_INT_CST_HIGH(position) || TREE_INT_CST_LOW(position) < 1 || TREE_INT_CST_LOW(position) > arg_count ) { ++ error("handle_size_overflow_attribute: overflow parameter outside range."); ++ *no_add_attrs = true; ++ } ++ } ++ return NULL_TREE; ++} ++ ++static struct attribute_spec no_size_overflow_attr = { ++ .name = "size_overflow", ++ .min_length = 1, ++ .max_length = -1, ++ .decl_required = false, ++ .type_required = true, ++ .function_type_required = true, ++ .handler = handle_size_overflow_attribute, ++#if BUILDING_GCC_VERSION >= 4007 ++ .affects_type_identity = false ++#endif ++}; ++ ++static void register_attributes(void __unused *event_data, void __unused *data) ++{ ++ register_attribute(&no_size_overflow_attr); ++} ++ ++// http://www.team5150.com/~andrew/noncryptohashzoo2~/CrapWow.html ++static unsigned int CrapWow(const char *key, unsigned int len, unsigned int seed) ++{ ++#define cwfold( a, b, lo, hi ) { p = (unsigned int)(a) * (unsigned long long)(b); lo ^= (unsigned int)p; hi ^= (unsigned int)(p >> 32); } ++#define cwmixa( in ) { cwfold( in, m, k, h ); } ++#define cwmixb( in ) { cwfold( in, n, h, k ); } ++ ++ const unsigned int m = 0x57559429; ++ const unsigned int n = 0x5052acdb; ++ const unsigned int *key4 = (const unsigned int *)key; ++ unsigned int h = len; ++ unsigned int k = len + seed + n; ++ unsigned long long p; ++ ++ while (len >= 8) { ++ cwmixb(key4[0]) cwmixa(key4[1]) key4 += 2; ++ len -= 8; ++ } ++ if (len >= 4) { ++ cwmixb(key4[0]) key4 += 1; ++ len -= 4; ++ } ++ if (len) ++ cwmixa(key4[0] & ((1 << (len * 8)) - 1 )); ++ cwmixb(h ^ (k + n)); ++ return k ^ h; ++ ++#undef cwfold ++#undef cwmixa ++#undef cwmixb ++} ++ ++static inline unsigned int get_hash_num(const char *fndecl, const char *tree_codes, unsigned int len, unsigned int seed) ++{ ++ unsigned int fn = CrapWow(fndecl, strlen(fndecl), seed) & 0xffff; ++ unsigned int codes = CrapWow(tree_codes, len, seed) & 0xffff; ++ return fn ^ codes; ++} ++ ++static inline tree get_original_function_decl(tree fndecl) ++{ ++ if (DECL_ABSTRACT_ORIGIN(fndecl)) ++ return DECL_ABSTRACT_ORIGIN(fndecl); ++ return fndecl; ++} ++ ++static inline gimple get_def_stmt(tree node) ++{ ++ gcc_assert(TREE_CODE(node) == SSA_NAME); ++ return SSA_NAME_DEF_STMT(node); ++} ++ ++static unsigned char get_tree_code(tree type) ++{ ++ switch (TREE_CODE(type)) { ++ case ARRAY_TYPE: ++ return 0; ++ case BOOLEAN_TYPE: ++ return 1; ++ case ENUMERAL_TYPE: ++ return 2; ++ case FUNCTION_TYPE: ++ return 3; ++ case INTEGER_TYPE: ++ return 4; ++ case POINTER_TYPE: ++ return 5; ++ case RECORD_TYPE: ++ return 6; ++ case UNION_TYPE: ++ return 7; ++ case VOID_TYPE: ++ return 8; ++ case REAL_TYPE: ++ return 9; ++ case VECTOR_TYPE: ++ return 10; ++ case REFERENCE_TYPE: ++ return 11; ++ default: ++ debug_tree(type); ++ gcc_unreachable(); ++ } ++} ++ ++static size_t add_type_codes(tree type, unsigned char *tree_codes, size_t len) ++{ ++ gcc_assert(type != NULL_TREE); ++ ++ while (type && len < CODES_LIMIT) { ++ tree_codes[len] = get_tree_code(type); ++ len++; ++ type = TREE_TYPE(type); ++ } ++ return len; ++} ++ ++static unsigned int get_function_decl(tree fndecl, unsigned char *tree_codes) ++{ ++ tree arg, result, type = TREE_TYPE(fndecl); ++ enum tree_code code = TREE_CODE(type); ++ size_t len = 0; ++ ++ gcc_assert(code == FUNCTION_TYPE); ++ ++ arg = TYPE_ARG_TYPES(type); ++ // skip builtins __builtin_constant_p ++ if (!arg && DECL_BUILT_IN(fndecl)) ++ return 0; ++ gcc_assert(arg != NULL_TREE); ++ ++ if (TREE_CODE_CLASS(code) == tcc_type) ++ result = type; ++ else ++ result = DECL_RESULT(fndecl); ++ ++ gcc_assert(result != NULL_TREE); ++ len = add_type_codes(TREE_TYPE(result), tree_codes, len); ++ ++ while (arg && len < CODES_LIMIT) { ++ len = add_type_codes(TREE_VALUE(arg), tree_codes, len); ++ arg = TREE_CHAIN(arg); ++ } ++ ++ gcc_assert(len != 0); ++ return len; ++} ++ ++static struct size_overflow_hash *get_function_hash(tree fndecl) ++{ ++ unsigned int hash; ++ struct size_overflow_hash *entry; ++ unsigned char tree_codes[CODES_LIMIT]; ++ size_t len; ++ const char *func_name = NAME(fndecl); ++ ++ len = get_function_decl(fndecl, tree_codes); ++ if (len == 0) ++ return NULL; ++ ++ hash = get_hash_num(func_name, (const char*) tree_codes, len, 0); ++ ++ entry = size_overflow_hash[hash]; ++ while (entry) { ++ if (!strcmp(entry->name, func_name)) ++ return entry; ++ entry = entry->next; ++ } ++ ++ return NULL; ++} ++ ++static void check_arg_type(tree var) ++{ ++ tree type = TREE_TYPE(var); ++ enum tree_code code = TREE_CODE(type); ++ ++ gcc_assert(code == INTEGER_TYPE || code == ENUMERAL_TYPE || ++ (code == POINTER_TYPE && TREE_CODE(TREE_TYPE(type)) == VOID_TYPE) || ++ (code == POINTER_TYPE && TREE_CODE(TREE_TYPE(type)) == INTEGER_TYPE)); ++} ++ ++static int find_arg_number(tree arg, tree func) ++{ ++ tree var; ++ bool match = false; ++ unsigned int argnum = 1; ++ ++ if (TREE_CODE(arg) == SSA_NAME) ++ arg = SSA_NAME_VAR(arg); ++ ++ for (var = DECL_ARGUMENTS(func); var; var = TREE_CHAIN(var)) { ++ if (strcmp(NAME(arg), NAME(var))) { ++ argnum++; ++ continue; ++ } ++ check_arg_type(var); ++ ++ match = true; ++ break; ++ } ++ if (!match) { ++ warning(0, "find_arg_number: cannot find the %s argument in %s", NAME(arg), NAME(func)); ++ return 0; ++ } ++ return argnum; ++} ++ ++static void print_missing_msg(tree func, unsigned int argnum) ++{ ++ unsigned int new_hash; ++ size_t len; ++ unsigned char tree_codes[CODES_LIMIT]; ++ location_t loc = DECL_SOURCE_LOCATION(func); ++ const char *curfunc = NAME(func); ++ ++ len = get_function_decl(func, tree_codes); ++ new_hash = get_hash_num(curfunc, (const char *) tree_codes, len, 0); ++ inform(loc, "Function %s is missing from the size_overflow hash table +%s+%d+%u+", curfunc, curfunc, argnum, new_hash); ++} ++ ++static void check_missing_attribute(tree arg) ++{ ++ tree type, func = get_original_function_decl(current_function_decl); ++ unsigned int argnum; ++ struct size_overflow_hash *hash; ++ ++ gcc_assert(TREE_CODE(arg) != COMPONENT_REF); ++ ++ type = TREE_TYPE(arg); ++ // skip function pointers ++ if (TREE_CODE(type) == POINTER_TYPE && TREE_CODE(TREE_TYPE(type)) == FUNCTION_TYPE) ++ return; ++ ++ if (lookup_attribute("size_overflow", TYPE_ATTRIBUTES(TREE_TYPE(func)))) ++ return; ++ ++ argnum = find_arg_number(arg, func); ++ if (argnum == 0) ++ return; ++ ++ hash = get_function_hash(func); ++ if (!hash || !(hash->param & (1U << argnum))) ++ print_missing_msg(func, argnum); ++} ++ ++static tree create_new_var(tree type) ++{ ++ tree new_var = create_tmp_var(type, "cicus"); ++ ++ add_referenced_var(new_var); ++ mark_sym_for_renaming(new_var); ++ return new_var; ++} ++ ++static bool is_bool(tree node) ++{ ++ tree type; ++ ++ if (node == NULL_TREE) ++ return false; ++ ++ type = TREE_TYPE(node); ++ if (!INTEGRAL_TYPE_P(type)) ++ return false; ++ if (TREE_CODE(type) == BOOLEAN_TYPE) ++ return true; ++ if (TYPE_PRECISION(type) == 1) ++ return true; ++ return false; ++} ++ ++static tree cast_a_tree(tree type, tree var) ++{ ++ gcc_assert(type != NULL_TREE && var != NULL_TREE); ++ gcc_assert(fold_convertible_p(type, var)); ++ ++ return fold_convert(type, var); ++} ++ ++static tree signed_cast(tree var) ++{ ++ return cast_a_tree(signed_size_overflow_type, var); ++} ++ ++static gimple build_cast_stmt(tree type, tree var, tree new_var, location_t loc) ++{ ++ gimple assign; ++ ++ if (new_var == CREATE_NEW_VAR) ++ new_var = create_new_var(type); ++ ++ assign = gimple_build_assign(new_var, cast_a_tree(type, var)); ++ gimple_set_location(assign, loc); ++ gimple_set_lhs(assign, make_ssa_name(new_var, assign)); ++ ++ return assign; ++} ++ ++static tree create_assign(struct pointer_set_t *visited, bool *potentionally_overflowed, gimple oldstmt, tree rhs1, bool before) ++{ ++ tree oldstmt_rhs1; ++ enum tree_code code; ++ gimple stmt; ++ gimple_stmt_iterator gsi; ++ ++ if (!*potentionally_overflowed) ++ return NULL_TREE; ++ ++ if (rhs1 == NULL_TREE) { ++ debug_gimple_stmt(oldstmt); ++ error("create_assign: rhs1 is NULL_TREE"); ++ gcc_unreachable(); ++ } ++ ++ oldstmt_rhs1 = gimple_assign_rhs1(oldstmt); ++ code = TREE_CODE(oldstmt_rhs1); ++ if (code == PARM_DECL || (code == SSA_NAME && gimple_code(get_def_stmt(oldstmt_rhs1)) == GIMPLE_NOP)) ++ check_missing_attribute(oldstmt_rhs1); ++ ++ stmt = build_cast_stmt(signed_size_overflow_type, rhs1, CREATE_NEW_VAR, gimple_location(oldstmt)); ++ gsi = gsi_for_stmt(oldstmt); ++ if (lookup_stmt_eh_lp(oldstmt) != 0) { ++ basic_block next_bb, cur_bb; ++ edge e; ++ ++ gcc_assert(before == false); ++ gcc_assert(stmt_can_throw_internal(oldstmt)); ++ gcc_assert(gimple_code(oldstmt) == GIMPLE_CALL); ++ gcc_assert(!gsi_end_p(gsi)); ++ ++ cur_bb = gimple_bb(oldstmt); ++ next_bb = cur_bb->next_bb; ++ e = find_edge(cur_bb, next_bb); ++ gcc_assert(e != NULL); ++ gcc_assert(e->flags & EDGE_FALLTHRU); ++ ++ gsi = gsi_after_labels(next_bb); ++ gcc_assert(!gsi_end_p(gsi)); ++ before = true; ++ } ++ if (before) ++ gsi_insert_before(&gsi, stmt, GSI_NEW_STMT); ++ else ++ gsi_insert_after(&gsi, stmt, GSI_NEW_STMT); ++ update_stmt(stmt); ++ pointer_set_insert(visited, oldstmt); ++ return gimple_get_lhs(stmt); ++} ++ ++static tree dup_assign(struct pointer_set_t *visited, bool *potentionally_overflowed, gimple oldstmt, tree rhs1, tree rhs2, tree __unused rhs3) ++{ ++ tree new_var, lhs = gimple_get_lhs(oldstmt); ++ gimple stmt; ++ gimple_stmt_iterator gsi; ++ ++ if (!*potentionally_overflowed) ++ return NULL_TREE; ++ ++ if (gimple_num_ops(oldstmt) != 4 && rhs1 == NULL_TREE) { ++ rhs1 = gimple_assign_rhs1(oldstmt); ++ rhs1 = create_assign(visited, potentionally_overflowed, oldstmt, rhs1, BEFORE_STMT); ++ } ++ if (gimple_num_ops(oldstmt) == 3 && rhs2 == NULL_TREE) { ++ rhs2 = gimple_assign_rhs2(oldstmt); ++ rhs2 = create_assign(visited, potentionally_overflowed, oldstmt, rhs2, BEFORE_STMT); ++ } ++ ++ stmt = gimple_copy(oldstmt); ++ gimple_set_location(stmt, gimple_location(oldstmt)); ++ ++ if (gimple_assign_rhs_code(oldstmt) == WIDEN_MULT_EXPR) ++ gimple_assign_set_rhs_code(stmt, MULT_EXPR); ++ ++ if (is_bool(lhs)) ++ new_var = SSA_NAME_VAR(lhs); ++ else ++ new_var = create_new_var(signed_size_overflow_type); ++ new_var = make_ssa_name(new_var, stmt); ++ gimple_set_lhs(stmt, new_var); ++ ++ if (rhs1 != NULL_TREE) { ++ if (!gimple_assign_cast_p(oldstmt)) ++ rhs1 = signed_cast(rhs1); ++ gimple_assign_set_rhs1(stmt, rhs1); ++ } ++ ++ if (rhs2 != NULL_TREE) ++ gimple_assign_set_rhs2(stmt, rhs2); ++#if BUILDING_GCC_VERSION >= 4007 ++ if (rhs3 != NULL_TREE) ++ gimple_assign_set_rhs3(stmt, rhs3); ++#endif ++ gimple_set_vuse(stmt, gimple_vuse(oldstmt)); ++ gimple_set_vdef(stmt, gimple_vdef(oldstmt)); ++ ++ gsi = gsi_for_stmt(oldstmt); ++ gsi_insert_after(&gsi, stmt, GSI_SAME_STMT); ++ update_stmt(stmt); ++ pointer_set_insert(visited, oldstmt); ++ return gimple_get_lhs(stmt); ++} ++ ++static gimple overflow_create_phi_node(gimple oldstmt, tree var) ++{ ++ basic_block bb; ++ gimple phi; ++ gimple_stmt_iterator gsi = gsi_for_stmt(oldstmt); ++ ++ bb = gsi_bb(gsi); ++ ++ phi = create_phi_node(var, bb); ++ gsi = gsi_last(phi_nodes(bb)); ++ gsi_remove(&gsi, false); ++ ++ gsi = gsi_for_stmt(oldstmt); ++ gsi_insert_after(&gsi, phi, GSI_NEW_STMT); ++ gimple_set_bb(phi, bb); ++ return phi; ++} ++ ++static basic_block create_a_first_bb(void) ++{ ++ basic_block first_bb; ++ ++ first_bb = split_block_after_labels(ENTRY_BLOCK_PTR)->dest; ++ if (dom_info_available_p(CDI_DOMINATORS)) ++ set_immediate_dominator(CDI_DOMINATORS, first_bb, ENTRY_BLOCK_PTR); ++ return first_bb; ++} ++ ++static gimple cast_old_phi_arg(gimple oldstmt, tree arg, tree new_var, unsigned int i) ++{ ++ basic_block bb; ++ gimple newstmt, def_stmt; ++ gimple_stmt_iterator gsi; ++ ++ newstmt = build_cast_stmt(signed_size_overflow_type, arg, new_var, gimple_location(oldstmt)); ++ if (TREE_CODE(arg) == SSA_NAME) { ++ def_stmt = get_def_stmt(arg); ++ if (gimple_code(def_stmt) != GIMPLE_NOP) { ++ gsi = gsi_for_stmt(def_stmt); ++ gsi_insert_after(&gsi, newstmt, GSI_NEW_STMT); ++ return newstmt; ++ } ++ } ++ ++ bb = gimple_phi_arg_edge(oldstmt, i)->src; ++ if (bb->index == 0) ++ bb = create_a_first_bb(); ++ gsi = gsi_after_labels(bb); ++ gsi_insert_before(&gsi, newstmt, GSI_NEW_STMT); ++ return newstmt; ++} ++ ++static gimple handle_new_phi_arg(tree arg, tree new_var, tree new_rhs) ++{ ++ gimple newstmt; ++ gimple_stmt_iterator gsi; ++ void (*gsi_insert)(gimple_stmt_iterator *, gimple, enum gsi_iterator_update); ++ gimple def_newstmt = get_def_stmt(new_rhs); ++ ++ gsi_insert = gsi_insert_after; ++ gsi = gsi_for_stmt(def_newstmt); ++ ++ switch (gimple_code(get_def_stmt(arg))) { ++ case GIMPLE_PHI: ++ newstmt = gimple_build_assign(new_var, new_rhs); ++ gsi = gsi_after_labels(gimple_bb(def_newstmt)); ++ gsi_insert = gsi_insert_before; ++ break; ++ case GIMPLE_ASM: ++ case GIMPLE_CALL: ++ newstmt = gimple_build_assign(new_var, new_rhs); ++ break; ++ case GIMPLE_ASSIGN: ++ newstmt = gimple_build_assign(new_var, gimple_get_lhs(def_newstmt)); ++ break; ++ default: ++ /* unknown gimple_code (handle_build_new_phi_arg) */ ++ gcc_unreachable(); ++ } ++ ++ gimple_set_lhs(newstmt, make_ssa_name(new_var, newstmt)); ++ gsi_insert(&gsi, newstmt, GSI_NEW_STMT); ++ update_stmt(newstmt); ++ return newstmt; ++} ++ ++static tree build_new_phi_arg(struct pointer_set_t *visited, bool *potentionally_overflowed, tree arg, tree new_var) ++{ ++ gimple newstmt; ++ tree new_rhs; ++ ++ new_rhs = expand(visited, potentionally_overflowed, arg); ++ ++ if (new_rhs == NULL_TREE) ++ return NULL_TREE; ++ ++ newstmt = handle_new_phi_arg(arg, new_var, new_rhs); ++ return gimple_get_lhs(newstmt); ++} ++ ++static tree build_new_phi(struct pointer_set_t *visited, bool *potentionally_overflowed, gimple oldstmt) ++{ ++ gimple phi; ++ tree new_var = create_new_var(signed_size_overflow_type); ++ unsigned int i, n = gimple_phi_num_args(oldstmt); ++ ++ pointer_set_insert(visited, oldstmt); ++ phi = overflow_create_phi_node(oldstmt, new_var); ++ for (i = 0; i < n; i++) { ++ tree arg, lhs; ++ ++ arg = gimple_phi_arg_def(oldstmt, i); ++ if (is_gimple_constant(arg)) ++ arg = signed_cast(arg); ++ lhs = build_new_phi_arg(visited, potentionally_overflowed, arg, new_var); ++ if (lhs == NULL_TREE) ++ lhs = gimple_get_lhs(cast_old_phi_arg(oldstmt, arg, new_var, i)); ++ add_phi_arg(phi, lhs, gimple_phi_arg_edge(oldstmt, i), gimple_location(oldstmt)); ++ } ++ ++ update_stmt(phi); ++ return gimple_phi_result(phi); ++} ++ ++static tree handle_unary_rhs(struct pointer_set_t *visited, bool *potentionally_overflowed, tree var) ++{ ++ gimple def_stmt = get_def_stmt(var); ++ tree new_rhs1, rhs1 = gimple_assign_rhs1(def_stmt); ++ ++ *potentionally_overflowed = true; ++ new_rhs1 = expand(visited, potentionally_overflowed, rhs1); ++ if (new_rhs1 == NULL_TREE) { ++ if (TREE_CODE(TREE_TYPE(rhs1)) == POINTER_TYPE) ++ return create_assign(visited, potentionally_overflowed, def_stmt, var, AFTER_STMT); ++ else ++ return create_assign(visited, potentionally_overflowed, def_stmt, rhs1, AFTER_STMT); ++ } ++ return dup_assign(visited, potentionally_overflowed, def_stmt, new_rhs1, NULL_TREE, NULL_TREE); ++} ++ ++static tree handle_unary_ops(struct pointer_set_t *visited, bool *potentionally_overflowed, tree var) ++{ ++ gimple def_stmt = get_def_stmt(var); ++ tree rhs1 = gimple_assign_rhs1(def_stmt); ++ ++ if (is_gimple_constant(rhs1)) ++ return dup_assign(visited, potentionally_overflowed, def_stmt, signed_cast(rhs1), NULL_TREE, NULL_TREE); ++ ++ gcc_assert(TREE_CODE(rhs1) != COND_EXPR); ++ switch (TREE_CODE(rhs1)) { ++ case SSA_NAME: ++ return handle_unary_rhs(visited, potentionally_overflowed, var); ++ ++ case ARRAY_REF: ++ case BIT_FIELD_REF: ++ case ADDR_EXPR: ++ case COMPONENT_REF: ++ case INDIRECT_REF: ++#if BUILDING_GCC_VERSION >= 4006 ++ case MEM_REF: ++#endif ++ case PARM_DECL: ++ case TARGET_MEM_REF: ++ case VAR_DECL: ++ return create_assign(visited, potentionally_overflowed, def_stmt, var, AFTER_STMT); ++ ++ default: ++ debug_gimple_stmt(def_stmt); ++ debug_tree(rhs1); ++ gcc_unreachable(); ++ } ++} ++ ++static void insert_cond(basic_block cond_bb, tree arg, enum tree_code cond_code, tree type_value) ++{ ++ gimple cond_stmt; ++ gimple_stmt_iterator gsi = gsi_last_bb(cond_bb); ++ ++ cond_stmt = gimple_build_cond(cond_code, arg, type_value, NULL_TREE, NULL_TREE); ++ gsi_insert_after(&gsi, cond_stmt, GSI_CONTINUE_LINKING); ++ update_stmt(cond_stmt); ++} ++ ++static tree create_string_param(tree string) ++{ ++ tree i_type, a_type; ++ int length = TREE_STRING_LENGTH(string); ++ ++ gcc_assert(length > 0); ++ ++ i_type = build_index_type(build_int_cst(NULL_TREE, length - 1)); ++ a_type = build_array_type(char_type_node, i_type); ++ ++ TREE_TYPE(string) = a_type; ++ TREE_CONSTANT(string) = 1; ++ TREE_READONLY(string) = 1; ++ ++ return build1(ADDR_EXPR, ptr_type_node, string); ++} ++ ++static void insert_cond_result(basic_block bb_true, gimple stmt, tree arg) ++{ ++ gimple func_stmt, def_stmt; ++ tree current_func, loc_file, loc_line; ++ expanded_location xloc; ++ gimple_stmt_iterator gsi = gsi_start_bb(bb_true); ++ ++ def_stmt = get_def_stmt(arg); ++ xloc = expand_location(gimple_location(def_stmt)); ++ ++ if (!gimple_has_location(def_stmt)) { ++ xloc = expand_location(gimple_location(stmt)); ++ if (!gimple_has_location(stmt)) ++ xloc = expand_location(DECL_SOURCE_LOCATION(current_function_decl)); ++ } ++ ++ loc_line = build_int_cstu(unsigned_type_node, xloc.line); ++ ++ loc_file = build_string(strlen(xloc.file) + 1, xloc.file); ++ loc_file = create_string_param(loc_file); ++ ++ current_func = build_string(NAME_LEN(current_function_decl) + 1, NAME(current_function_decl)); ++ current_func = create_string_param(current_func); ++ ++ // void report_size_overflow(const char *file, unsigned int line, const char *func) ++ func_stmt = gimple_build_call(report_size_overflow_decl, 3, loc_file, loc_line, current_func); ++ ++ gsi_insert_after(&gsi, func_stmt, GSI_CONTINUE_LINKING); ++} ++ ++static void __unused print_the_code_insertions(gimple stmt) ++{ ++ location_t loc = gimple_location(stmt); ++ ++ inform(loc, "Integer size_overflow check applied here."); ++} ++ ++static void insert_check_size_overflow(gimple stmt, enum tree_code cond_code, tree arg, tree type_value) ++{ ++ basic_block cond_bb, join_bb, bb_true; ++ edge e; ++ gimple_stmt_iterator gsi = gsi_for_stmt(stmt); ++ ++ cond_bb = gimple_bb(stmt); ++ gsi_prev(&gsi); ++ if (gsi_end_p(gsi)) ++ e = split_block_after_labels(cond_bb); ++ else ++ e = split_block(cond_bb, gsi_stmt(gsi)); ++ cond_bb = e->src; ++ join_bb = e->dest; ++ e->flags = EDGE_FALSE_VALUE; ++ e->probability = REG_BR_PROB_BASE; ++ ++ bb_true = create_empty_bb(cond_bb); ++ make_edge(cond_bb, bb_true, EDGE_TRUE_VALUE); ++ make_edge(cond_bb, join_bb, EDGE_FALSE_VALUE); ++ make_edge(bb_true, join_bb, EDGE_FALLTHRU); ++ ++ if (dom_info_available_p(CDI_DOMINATORS)) { ++ set_immediate_dominator(CDI_DOMINATORS, bb_true, cond_bb); ++ set_immediate_dominator(CDI_DOMINATORS, join_bb, cond_bb); ++ } ++ ++ if (current_loops != NULL) { ++ gcc_assert(cond_bb->loop_father == join_bb->loop_father); ++ add_bb_to_loop(bb_true, cond_bb->loop_father); ++ } ++ ++ insert_cond(cond_bb, arg, cond_code, type_value); ++ insert_cond_result(bb_true, stmt, arg); ++ ++// print_the_code_insertions(stmt); ++} ++ ++static gimple cast_to_unsigned_size_overflow_type(gimple stmt, tree cast_rhs) ++{ ++ gimple ucast_stmt; ++ gimple_stmt_iterator gsi; ++ location_t loc = gimple_location(stmt); ++ ++ ucast_stmt = build_cast_stmt(unsigned_size_overflow_type, cast_rhs, CREATE_NEW_VAR, loc); ++ gsi = gsi_for_stmt(stmt); ++ gsi_insert_before(&gsi, ucast_stmt, GSI_SAME_STMT); ++ return ucast_stmt; ++} ++ ++static void check_size_overflow(gimple stmt, tree cast_rhs, tree rhs, bool *potentionally_overflowed) ++{ ++ tree type_max, type_min, rhs_type = TREE_TYPE(rhs); ++ gimple ucast_stmt; ++ ++ if (!*potentionally_overflowed) ++ return; ++ ++ if (TYPE_UNSIGNED(rhs_type)) { ++ ucast_stmt = cast_to_unsigned_size_overflow_type(stmt, cast_rhs); ++ type_max = cast_a_tree(unsigned_size_overflow_type, TYPE_MAX_VALUE(rhs_type)); ++ insert_check_size_overflow(stmt, GT_EXPR, gimple_get_lhs(ucast_stmt), type_max); ++ } else { ++ type_max = signed_cast(TYPE_MAX_VALUE(rhs_type)); ++ insert_check_size_overflow(stmt, GT_EXPR, cast_rhs, type_max); ++ ++ type_min = signed_cast(TYPE_MIN_VALUE(rhs_type)); ++ insert_check_size_overflow(stmt, LT_EXPR, cast_rhs, type_min); ++ } ++} ++ ++static tree change_assign_rhs(gimple stmt, tree orig_rhs, tree new_rhs) ++{ ++ gimple assign; ++ gimple_stmt_iterator gsi = gsi_for_stmt(stmt); ++ tree origtype = TREE_TYPE(orig_rhs); ++ ++ gcc_assert(gimple_code(stmt) == GIMPLE_ASSIGN); ++ ++ assign = build_cast_stmt(origtype, new_rhs, CREATE_NEW_VAR, gimple_location(stmt)); ++ gsi_insert_before(&gsi, assign, GSI_SAME_STMT); ++ update_stmt(assign); ++ return gimple_get_lhs(assign); ++} ++ ++static tree handle_const_assign(struct pointer_set_t *visited, bool *potentionally_overflowed, gimple def_stmt, tree var, tree orig_rhs, tree var_rhs, tree new_rhs1, tree new_rhs2, void (*gimple_assign_set_rhs)(gimple, tree)) ++{ ++ tree new_rhs; ++ ++ if (gimple_assign_rhs_code(def_stmt) == MIN_EXPR) ++ return dup_assign(visited, potentionally_overflowed, def_stmt, new_rhs1, new_rhs2, NULL_TREE); ++ ++ if (var_rhs == NULL_TREE) ++ return create_assign(visited, potentionally_overflowed, def_stmt, var, AFTER_STMT); ++ ++ new_rhs = change_assign_rhs(def_stmt, orig_rhs, var_rhs); ++ gimple_assign_set_rhs(def_stmt, new_rhs); ++ update_stmt(def_stmt); ++ ++ check_size_overflow(def_stmt, var_rhs, orig_rhs, potentionally_overflowed); ++ return create_assign(visited, potentionally_overflowed, def_stmt, var, AFTER_STMT); ++} ++ ++static tree handle_binary_ops(struct pointer_set_t *visited, bool *potentionally_overflowed, tree var) ++{ ++ tree rhs1, rhs2; ++ gimple def_stmt = get_def_stmt(var); ++ tree new_rhs1 = NULL_TREE; ++ tree new_rhs2 = NULL_TREE; ++ ++ rhs1 = gimple_assign_rhs1(def_stmt); ++ rhs2 = gimple_assign_rhs2(def_stmt); ++ ++ /* no DImode/TImode division in the 32/64 bit kernel */ ++ switch (gimple_assign_rhs_code(def_stmt)) { ++ case RDIV_EXPR: ++ case TRUNC_DIV_EXPR: ++ case CEIL_DIV_EXPR: ++ case FLOOR_DIV_EXPR: ++ case ROUND_DIV_EXPR: ++ case TRUNC_MOD_EXPR: ++ case CEIL_MOD_EXPR: ++ case FLOOR_MOD_EXPR: ++ case ROUND_MOD_EXPR: ++ case EXACT_DIV_EXPR: ++ case POINTER_PLUS_EXPR: ++ case BIT_AND_EXPR: ++ return create_assign(visited, potentionally_overflowed, def_stmt, var, AFTER_STMT); ++ default: ++ break; ++ } ++ ++ *potentionally_overflowed = true; ++ ++ if (TREE_CODE(rhs1) == SSA_NAME) ++ new_rhs1 = expand(visited, potentionally_overflowed, rhs1); ++ if (TREE_CODE(rhs2) == SSA_NAME) ++ new_rhs2 = expand(visited, potentionally_overflowed, rhs2); ++ ++ if (is_gimple_constant(rhs2)) ++ return handle_const_assign(visited, potentionally_overflowed, def_stmt, var, rhs1, new_rhs1, new_rhs1, signed_cast(rhs2), &gimple_assign_set_rhs1); ++ ++ if (is_gimple_constant(rhs1)) ++ return handle_const_assign(visited, potentionally_overflowed, def_stmt, var, rhs2, new_rhs2, signed_cast(rhs1), new_rhs2, &gimple_assign_set_rhs2); ++ ++ return dup_assign(visited, potentionally_overflowed, def_stmt, new_rhs1, new_rhs2, NULL_TREE); ++} ++ ++#if BUILDING_GCC_VERSION >= 4007 ++static tree get_new_rhs(struct pointer_set_t *visited, bool *potentionally_overflowed, tree rhs) ++{ ++ if (is_gimple_constant(rhs)) ++ return signed_cast(rhs); ++ if (TREE_CODE(rhs) != SSA_NAME) ++ return NULL_TREE; ++ return expand(visited, potentionally_overflowed, rhs); ++} ++ ++static tree handle_ternary_ops(struct pointer_set_t *visited, bool *potentionally_overflowed, tree var) ++{ ++ tree rhs1, rhs2, rhs3, new_rhs1, new_rhs2, new_rhs3; ++ gimple def_stmt = get_def_stmt(var); ++ ++ *potentionally_overflowed = true; ++ ++ rhs1 = gimple_assign_rhs1(def_stmt); ++ rhs2 = gimple_assign_rhs2(def_stmt); ++ rhs3 = gimple_assign_rhs3(def_stmt); ++ new_rhs1 = get_new_rhs(visited, potentionally_overflowed, rhs1); ++ new_rhs2 = get_new_rhs(visited, potentionally_overflowed, rhs2); ++ new_rhs3 = get_new_rhs(visited, potentionally_overflowed, rhs3); ++ ++ if (new_rhs1 == NULL_TREE && new_rhs2 != NULL_TREE && new_rhs3 != NULL_TREE) ++ return dup_assign(visited, potentionally_overflowed, def_stmt, new_rhs1, new_rhs2, new_rhs3); ++ error("handle_ternary_ops: unknown rhs"); ++ gcc_unreachable(); ++} ++#endif ++ ++static void set_size_overflow_type(tree node) ++{ ++ switch (TYPE_MODE(TREE_TYPE(node))) { ++ case SImode: ++ signed_size_overflow_type = intDI_type_node; ++ unsigned_size_overflow_type = unsigned_intDI_type_node; ++ break; ++ case DImode: ++ if (LONG_TYPE_SIZE == GET_MODE_BITSIZE(SImode)) { ++ signed_size_overflow_type = intDI_type_node; ++ unsigned_size_overflow_type = unsigned_intDI_type_node; ++ } else { ++ signed_size_overflow_type = intTI_type_node; ++ unsigned_size_overflow_type = unsigned_intTI_type_node; ++ } ++ break; ++ default: ++ error("set_size_overflow_type: unsupported gcc configuration."); ++ gcc_unreachable(); ++ } ++} ++ ++static tree expand_visited(gimple def_stmt) ++{ ++ gimple tmp; ++ gimple_stmt_iterator gsi = gsi_for_stmt(def_stmt); ++ ++ gsi_next(&gsi); ++ tmp = gsi_stmt(gsi); ++ switch (gimple_code(tmp)) { ++ case GIMPLE_ASSIGN: ++ return gimple_get_lhs(tmp); ++ case GIMPLE_PHI: ++ return gimple_phi_result(tmp); ++ case GIMPLE_CALL: ++ return gimple_call_lhs(tmp); ++ default: ++ return NULL_TREE; ++ } ++} ++ ++static tree expand(struct pointer_set_t *visited, bool *potentionally_overflowed, tree var) ++{ ++ gimple def_stmt; ++ enum tree_code code = TREE_CODE(TREE_TYPE(var)); ++ ++ if (is_gimple_constant(var)) ++ return NULL_TREE; ++ ++ if (TREE_CODE(var) == ADDR_EXPR) ++ return NULL_TREE; ++ ++ gcc_assert(code == INTEGER_TYPE || code == POINTER_TYPE || code == BOOLEAN_TYPE || code == ENUMERAL_TYPE); ++ if (code != INTEGER_TYPE) ++ return NULL_TREE; ++ ++ if (SSA_NAME_IS_DEFAULT_DEF(var)) { ++ check_missing_attribute(var); ++ return NULL_TREE; ++ } ++ ++ def_stmt = get_def_stmt(var); ++ ++ if (!def_stmt) ++ return NULL_TREE; ++ ++ if (pointer_set_contains(visited, def_stmt)) ++ return expand_visited(def_stmt); ++ ++ switch (gimple_code(def_stmt)) { ++ case GIMPLE_NOP: ++ check_missing_attribute(var); ++ return NULL_TREE; ++ case GIMPLE_PHI: ++ return build_new_phi(visited, potentionally_overflowed, def_stmt); ++ case GIMPLE_CALL: ++ case GIMPLE_ASM: ++ return create_assign(visited, potentionally_overflowed, def_stmt, var, AFTER_STMT); ++ case GIMPLE_ASSIGN: ++ switch (gimple_num_ops(def_stmt)) { ++ case 2: ++ return handle_unary_ops(visited, potentionally_overflowed, var); ++ case 3: ++ return handle_binary_ops(visited, potentionally_overflowed, var); ++#if BUILDING_GCC_VERSION >= 4007 ++ case 4: ++ return handle_ternary_ops(visited, potentionally_overflowed, var); ++#endif ++ } ++ default: ++ debug_gimple_stmt(def_stmt); ++ error("expand: unknown gimple code"); ++ gcc_unreachable(); ++ } ++} ++ ++static void change_function_arg(gimple stmt, tree origarg, unsigned int argnum, tree newarg) ++{ ++ gimple assign; ++ gimple_stmt_iterator gsi = gsi_for_stmt(stmt); ++ tree origtype = TREE_TYPE(origarg); ++ ++ gcc_assert(gimple_code(stmt) == GIMPLE_CALL); ++ ++ assign = build_cast_stmt(origtype, newarg, CREATE_NEW_VAR, gimple_location(stmt)); ++ gsi_insert_before(&gsi, assign, GSI_SAME_STMT); ++ update_stmt(assign); ++ ++ gimple_call_set_arg(stmt, argnum, gimple_get_lhs(assign)); ++ update_stmt(stmt); ++} ++ ++static tree get_function_arg(unsigned int argnum, gimple stmt, tree fndecl) ++{ ++ const char *origid; ++ tree arg, origarg; ++ ++ if (!DECL_ABSTRACT_ORIGIN(fndecl)) { ++ gcc_assert(gimple_call_num_args(stmt) > argnum); ++ return gimple_call_arg(stmt, argnum); ++ } ++ ++ origarg = DECL_ARGUMENTS(DECL_ABSTRACT_ORIGIN(fndecl)); ++ while (origarg && argnum) { ++ argnum--; ++ origarg = TREE_CHAIN(origarg); ++ } ++ ++ gcc_assert(argnum == 0); ++ ++ gcc_assert(origarg != NULL_TREE); ++ origid = NAME(origarg); ++ for (arg = DECL_ARGUMENTS(fndecl); arg; arg = TREE_CHAIN(arg)) { ++ if (!strcmp(origid, NAME(arg))) ++ return arg; ++ } ++ return NULL_TREE; ++} ++ ++static void handle_function_arg(gimple stmt, tree fndecl, unsigned int argnum) ++{ ++ struct pointer_set_t *visited; ++ tree arg, newarg; ++ bool potentionally_overflowed; ++ ++ arg = get_function_arg(argnum, stmt, fndecl); ++ if (arg == NULL_TREE) ++ return; ++ ++ if (is_gimple_constant(arg)) ++ return; ++ if (TREE_CODE(arg) != SSA_NAME) ++ return; ++ ++ check_arg_type(arg); ++ ++ set_size_overflow_type(arg); ++ ++ visited = pointer_set_create(); ++ potentionally_overflowed = false; ++ newarg = expand(visited, &potentionally_overflowed, arg); ++ pointer_set_destroy(visited); ++ ++ if (newarg == NULL_TREE || !potentionally_overflowed) ++ return; ++ ++ change_function_arg(stmt, arg, argnum, newarg); ++ ++ check_size_overflow(stmt, newarg, arg, &potentionally_overflowed); ++} ++ ++static void handle_function_by_attribute(gimple stmt, tree attr, tree fndecl) ++{ ++ tree p = TREE_VALUE(attr); ++ do { ++ handle_function_arg(stmt, fndecl, TREE_INT_CST_LOW(TREE_VALUE(p))-1); ++ p = TREE_CHAIN(p); ++ } while (p); ++} ++ ++static void handle_function_by_hash(gimple stmt, tree fndecl) ++{ ++ tree orig_fndecl; ++ unsigned int num; ++ struct size_overflow_hash *hash; ++ ++ orig_fndecl = get_original_function_decl(fndecl); ++ hash = get_function_hash(orig_fndecl); ++ if (!hash) ++ return; ++ ++ for (num = 1; num <= MAX_PARAM; num++) ++ if (hash->param & (1U << num)) ++ handle_function_arg(stmt, fndecl, num - 1); ++} ++ ++static unsigned int handle_function(void) ++{ ++ basic_block bb = ENTRY_BLOCK_PTR->next_bb; ++ int saved_last_basic_block = last_basic_block; ++ ++ do { ++ gimple_stmt_iterator gsi; ++ basic_block next = bb->next_bb; ++ ++ for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) { ++ tree fndecl, attr; ++ gimple stmt = gsi_stmt(gsi); ++ ++ if (!(is_gimple_call(stmt))) ++ continue; ++ fndecl = gimple_call_fndecl(stmt); ++ if (fndecl == NULL_TREE) ++ continue; ++ if (gimple_call_num_args(stmt) == 0) ++ continue; ++ attr = lookup_attribute("size_overflow", TYPE_ATTRIBUTES(TREE_TYPE(fndecl))); ++ if (!attr || !TREE_VALUE(attr)) ++ handle_function_by_hash(stmt, fndecl); ++ else ++ handle_function_by_attribute(stmt, attr, fndecl); ++ gsi = gsi_for_stmt(stmt); ++ } ++ bb = next; ++ } while (bb && bb->index <= saved_last_basic_block); ++ return 0; ++} ++ ++static struct gimple_opt_pass size_overflow_pass = { ++ .pass = { ++ .type = GIMPLE_PASS, ++ .name = "size_overflow", ++ .gate = NULL, ++ .execute = handle_function, ++ .sub = NULL, ++ .next = NULL, ++ .static_pass_number = 0, ++ .tv_id = TV_NONE, ++ .properties_required = PROP_cfg | PROP_referenced_vars, ++ .properties_provided = 0, ++ .properties_destroyed = 0, ++ .todo_flags_start = 0, ++ .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_remove_unused_locals | TODO_update_ssa_no_phi | TODO_cleanup_cfg | TODO_ggc_collect | TODO_verify_flow ++ } ++}; ++ ++static void start_unit_callback(void __unused *gcc_data, void __unused *user_data) ++{ ++ tree fntype; ++ ++ const_char_ptr_type_node = build_pointer_type(build_type_variant(char_type_node, 1, 0)); ++ ++ // void report_size_overflow(const char *loc_file, unsigned int loc_line, const char *current_func) ++ fntype = build_function_type_list(void_type_node, ++ const_char_ptr_type_node, ++ unsigned_type_node, ++ const_char_ptr_type_node, ++ NULL_TREE); ++ report_size_overflow_decl = build_fn_decl("report_size_overflow", fntype); ++ ++ DECL_ASSEMBLER_NAME(report_size_overflow_decl); ++ TREE_PUBLIC(report_size_overflow_decl) = 1; ++ DECL_EXTERNAL(report_size_overflow_decl) = 1; ++ DECL_ARTIFICIAL(report_size_overflow_decl) = 1; ++} ++ ++int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version) ++{ ++ int i; ++ const char * const plugin_name = plugin_info->base_name; ++ const int argc = plugin_info->argc; ++ const struct plugin_argument * const argv = plugin_info->argv; ++ bool enable = true; ++ ++ struct register_pass_info size_overflow_pass_info = { ++ .pass = &size_overflow_pass.pass, ++ .reference_pass_name = "ssa", ++ .ref_pass_instance_number = 1, ++ .pos_op = PASS_POS_INSERT_AFTER ++ }; ++ ++ if (!plugin_default_version_check(version, &gcc_version)) { ++ error(G_("incompatible gcc/plugin versions")); ++ return 1; ++ } ++ ++ for (i = 0; i < argc; ++i) { ++ if (!strcmp(argv[i].key, "no-size-overflow")) { ++ enable = false; ++ continue; ++ } ++ error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key); ++ } ++ ++ register_callback(plugin_name, PLUGIN_INFO, NULL, &size_overflow_plugin_info); ++ if (enable) { ++ register_callback ("start_unit", PLUGIN_START_UNIT, &start_unit_callback, NULL); ++ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &size_overflow_pass_info); ++ } ++ register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL); ++ ++ return 0; ++} +diff --git a/tools/gcc/stackleak_plugin.c b/tools/gcc/stackleak_plugin.c +new file mode 100644 +index 0000000..38d2014 +--- /dev/null ++++ b/tools/gcc/stackleak_plugin.c +@@ -0,0 +1,313 @@ ++/* ++ * Copyright 2011 by the PaX Team <pageexec(a)freemail.hu> ++ * Licensed under the GPL v2 ++ * ++ * Note: the choice of the license means that the compilation process is ++ * NOT 'eligible' as defined by gcc's library exception to the GPL v3, ++ * but for the kernel it doesn't matter since it doesn't link against ++ * any of the gcc libraries ++ * ++ * gcc plugin to help implement various PaX features ++ * ++ * - track lowest stack pointer ++ * ++ * TODO: ++ * - initialize all local variables ++ * ++ * BUGS: ++ * - none known ++ */ ++#include "gcc-plugin.h" ++#include "config.h" ++#include "system.h" ++#include "coretypes.h" ++#include "tree.h" ++#include "tree-pass.h" ++#include "flags.h" ++#include "intl.h" ++#include "toplev.h" ++#include "plugin.h" ++//#include "expr.h" where are you... ++#include "diagnostic.h" ++#include "plugin-version.h" ++#include "tm.h" ++#include "function.h" ++#include "basic-block.h" ++#include "gimple.h" ++#include "rtl.h" ++#include "emit-rtl.h" ++ ++extern void print_gimple_stmt(FILE *, gimple, int, int); ++ ++int plugin_is_GPL_compatible; ++ ++static int track_frame_size = -1; ++static const char track_function[] = "pax_track_stack"; ++static const char check_function[] = "pax_check_alloca"; ++static bool init_locals; ++ ++static struct plugin_info stackleak_plugin_info = { ++ .version = "201203140940", ++ .help = "track-lowest-sp=nn\ttrack sp in functions whose frame size is at least nn bytes\n" ++// "initialize-locals\t\tforcibly initialize all stack frames\n" ++}; ++ ++static bool gate_stackleak_track_stack(void); ++static unsigned int execute_stackleak_tree_instrument(void); ++static unsigned int execute_stackleak_final(void); ++ ++static struct gimple_opt_pass stackleak_tree_instrument_pass = { ++ .pass = { ++ .type = GIMPLE_PASS, ++ .name = "stackleak_tree_instrument", ++ .gate = gate_stackleak_track_stack, ++ .execute = execute_stackleak_tree_instrument, ++ .sub = NULL, ++ .next = NULL, ++ .static_pass_number = 0, ++ .tv_id = TV_NONE, ++ .properties_required = PROP_gimple_leh | PROP_cfg, ++ .properties_provided = 0, ++ .properties_destroyed = 0, ++ .todo_flags_start = 0, //TODO_verify_ssa | TODO_verify_flow | TODO_verify_stmts, ++ .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_update_ssa ++ } ++}; ++ ++static struct rtl_opt_pass stackleak_final_rtl_opt_pass = { ++ .pass = { ++ .type = RTL_PASS, ++ .name = "stackleak_final", ++ .gate = gate_stackleak_track_stack, ++ .execute = execute_stackleak_final, ++ .sub = NULL, ++ .next = NULL, ++ .static_pass_number = 0, ++ .tv_id = TV_NONE, ++ .properties_required = 0, ++ .properties_provided = 0, ++ .properties_destroyed = 0, ++ .todo_flags_start = 0, ++ .todo_flags_finish = TODO_dump_func ++ } ++}; ++ ++static bool gate_stackleak_track_stack(void) ++{ ++ return track_frame_size >= 0; ++} ++ ++static void stackleak_check_alloca(gimple_stmt_iterator *gsi) ++{ ++ gimple check_alloca; ++ tree fntype, fndecl, alloca_size; ++ ++ fntype = build_function_type_list(void_type_node, long_unsigned_type_node, NULL_TREE); ++ fndecl = build_fn_decl(check_function, fntype); ++ DECL_ASSEMBLER_NAME(fndecl); // for LTO ++ ++ // insert call to void pax_check_alloca(unsigned long size) ++ alloca_size = gimple_call_arg(gsi_stmt(*gsi), 0); ++ check_alloca = gimple_build_call(fndecl, 1, alloca_size); ++ gsi_insert_before(gsi, check_alloca, GSI_SAME_STMT); ++} ++ ++static void stackleak_add_instrumentation(gimple_stmt_iterator *gsi) ++{ ++ gimple track_stack; ++ tree fntype, fndecl; ++ ++ fntype = build_function_type_list(void_type_node, NULL_TREE); ++ fndecl = build_fn_decl(track_function, fntype); ++ DECL_ASSEMBLER_NAME(fndecl); // for LTO ++ ++ // insert call to void pax_track_stack(void) ++ track_stack = gimple_build_call(fndecl, 0); ++ gsi_insert_after(gsi, track_stack, GSI_CONTINUE_LINKING); ++} ++ ++#if BUILDING_GCC_VERSION == 4005 ++static bool gimple_call_builtin_p(gimple stmt, enum built_in_function code) ++{ ++ tree fndecl; ++ ++ if (!is_gimple_call(stmt)) ++ return false; ++ fndecl = gimple_call_fndecl(stmt); ++ if (!fndecl) ++ return false; ++ if (DECL_BUILT_IN_CLASS(fndecl) != BUILT_IN_NORMAL) ++ return false; ++// print_node(stderr, "pax", fndecl, 4); ++ return DECL_FUNCTION_CODE(fndecl) == code; ++} ++#endif ++ ++static bool is_alloca(gimple stmt) ++{ ++ if (gimple_call_builtin_p(stmt, BUILT_IN_ALLOCA)) ++ return true; ++ ++#if BUILDING_GCC_VERSION >= 4007 ++ if (gimple_call_builtin_p(stmt, BUILT_IN_ALLOCA_WITH_ALIGN)) ++ return true; ++#endif ++ ++ return false; ++} ++ ++static unsigned int execute_stackleak_tree_instrument(void) ++{ ++ basic_block bb, entry_bb; ++ bool prologue_instrumented = false, is_leaf = true; ++ ++ entry_bb = ENTRY_BLOCK_PTR_FOR_FUNCTION(cfun)->next_bb; ++ ++ // 1. loop through BBs and GIMPLE statements ++ FOR_EACH_BB(bb) { ++ gimple_stmt_iterator gsi; ++ ++ for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) { ++ gimple stmt; ++ ++ stmt = gsi_stmt(gsi); ++ ++ if (is_gimple_call(stmt)) ++ is_leaf = false; ++ ++ // gimple match: align 8 built-in BUILT_IN_NORMAL:BUILT_IN_ALLOCA attributes <tree_list 0xb7576450> ++ if (!is_alloca(stmt)) ++ continue; ++ ++ // 2. insert stack overflow check before each __builtin_alloca call ++ stackleak_check_alloca(&gsi); ++ ++ // 3. insert track call after each __builtin_alloca call ++ stackleak_add_instrumentation(&gsi); ++ if (bb == entry_bb) ++ prologue_instrumented = true; ++ } ++ } ++ ++ // special cases for some bad linux code: taking the address of static inline functions will materialize them ++ // but we mustn't instrument some of them as the resulting stack alignment required by the function call ABI ++ // will break other assumptions regarding the expected (but not otherwise enforced) register clobbering ABI. ++ // case in point: native_save_fl on amd64 when optimized for size clobbers rdx if it were instrumented here. ++ if (is_leaf && !TREE_PUBLIC(current_function_decl) && DECL_DECLARED_INLINE_P(current_function_decl)) ++ return 0; ++ if (is_leaf && !strncmp(IDENTIFIER_POINTER(DECL_NAME(current_function_decl)), "_paravirt_", 10)) ++ return 0; ++ ++ // 4. insert track call at the beginning ++ if (!prologue_instrumented) { ++ gimple_stmt_iterator gsi; ++ ++ bb = split_block_after_labels(ENTRY_BLOCK_PTR)->dest; ++ if (dom_info_available_p(CDI_DOMINATORS)) ++ set_immediate_dominator(CDI_DOMINATORS, bb, ENTRY_BLOCK_PTR); ++ gsi = gsi_start_bb(bb); ++ stackleak_add_instrumentation(&gsi); ++ } ++ ++ return 0; ++} ++ ++static unsigned int execute_stackleak_final(void) ++{ ++ rtx insn; ++ ++ if (cfun->calls_alloca) ++ return 0; ++ ++ // keep calls only if function frame is big enough ++ if (get_frame_size() >= track_frame_size) ++ return 0; ++ ++ // 1. find pax_track_stack calls ++ for (insn = get_insns(); insn; insn = NEXT_INSN(insn)) { ++ // rtl match: (call_insn 8 7 9 3 (call (mem (symbol_ref ("pax_track_stack") [flags 0x41] <function_decl 0xb7470e80 pax_track_stack>) [0 S1 A8]) (4)) -1 (nil) (nil)) ++ rtx body; ++ ++ if (!CALL_P(insn)) ++ continue; ++ body = PATTERN(insn); ++ if (GET_CODE(body) != CALL) ++ continue; ++ body = XEXP(body, 0); ++ if (GET_CODE(body) != MEM) ++ continue; ++ body = XEXP(body, 0); ++ if (GET_CODE(body) != SYMBOL_REF) ++ continue; ++ if (strcmp(XSTR(body, 0), track_function)) ++ continue; ++// warning(0, "track_frame_size: %d %ld %d", cfun->calls_alloca, get_frame_size(), track_frame_size); ++ // 2. delete call ++ insn = delete_insn_and_edges(insn); ++#if BUILDING_GCC_VERSION >= 4007 ++ if (GET_CODE(insn) == NOTE && NOTE_KIND(insn) == NOTE_INSN_CALL_ARG_LOCATION) ++ insn = delete_insn_and_edges(insn); ++#endif ++ } ++ ++// print_simple_rtl(stderr, get_insns()); ++// print_rtl(stderr, get_insns()); ++// warning(0, "track_frame_size: %d %ld %d", cfun->calls_alloca, get_frame_size(), track_frame_size); ++ ++ return 0; ++} ++ ++int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version) ++{ ++ const char * const plugin_name = plugin_info->base_name; ++ const int argc = plugin_info->argc; ++ const struct plugin_argument * const argv = plugin_info->argv; ++ int i; ++ struct register_pass_info stackleak_tree_instrument_pass_info = { ++ .pass = &stackleak_tree_instrument_pass.pass, ++// .reference_pass_name = "tree_profile", ++ .reference_pass_name = "optimized", ++ .ref_pass_instance_number = 1, ++ .pos_op = PASS_POS_INSERT_BEFORE ++ }; ++ struct register_pass_info stackleak_final_pass_info = { ++ .pass = &stackleak_final_rtl_opt_pass.pass, ++ .reference_pass_name = "final", ++ .ref_pass_instance_number = 1, ++ .pos_op = PASS_POS_INSERT_BEFORE ++ }; ++ ++ if (!plugin_default_version_check(version, &gcc_version)) { ++ error(G_("incompatible gcc/plugin versions")); ++ return 1; ++ } ++ ++ register_callback(plugin_name, PLUGIN_INFO, NULL, &stackleak_plugin_info); ++ ++ for (i = 0; i < argc; ++i) { ++ if (!strcmp(argv[i].key, "track-lowest-sp")) { ++ if (!argv[i].value) { ++ error(G_("no value supplied for option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key); ++ continue; ++ } ++ track_frame_size = atoi(argv[i].value); ++ if (argv[i].value[0] < '0' || argv[i].value[0] > '9' || track_frame_size < 0) ++ error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value); ++ continue; ++ } ++ if (!strcmp(argv[i].key, "initialize-locals")) { ++ if (argv[i].value) { ++ error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value); ++ continue; ++ } ++ init_locals = true; ++ continue; ++ } ++ error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key); ++ } ++ ++ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &stackleak_tree_instrument_pass_info); ++ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &stackleak_final_pass_info); ++ ++ return 0; ++} +diff --git a/tools/perf/util/include/asm/alternative-asm.h b/tools/perf/util/include/asm/alternative-asm.h +index 6789d78..4afd019 100644 +--- a/tools/perf/util/include/asm/alternative-asm.h ++++ b/tools/perf/util/include/asm/alternative-asm.h +@@ -5,4 +5,7 @@ + + #define altinstruction_entry # + ++ .macro pax_force_retaddr rip=0, reload=0 ++ .endm ++ + #endif +diff --git a/usr/gen_init_cpio.c b/usr/gen_init_cpio.c +index af0f22f..9a7d479 100644 +--- a/usr/gen_init_cpio.c ++++ b/usr/gen_init_cpio.c +@@ -303,7 +303,7 @@ static int cpio_mkfile(const char *name, const char *location, + int retval; + int rc = -1; + int namesize; +- int i; ++ unsigned int i; + + mode |= S_IFREG; + +@@ -392,9 +392,10 @@ static char *cpio_replace_env(char *new_location) + *env_var = *expanded = '\0'; + strncat(env_var, start + 2, end - start - 2); + strncat(expanded, new_location, start - new_location); +- strncat(expanded, getenv(env_var), PATH_MAX); +- strncat(expanded, end + 1, PATH_MAX); ++ strncat(expanded, getenv(env_var), PATH_MAX - strlen(expanded)); ++ strncat(expanded, end + 1, PATH_MAX - strlen(expanded)); + strncpy(new_location, expanded, PATH_MAX); ++ new_location[PATH_MAX] = 0; + } else + break; + } +diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c +index 9739b53..6d457e3 100644 +--- a/virt/kvm/kvm_main.c ++++ b/virt/kvm/kvm_main.c +@@ -75,7 +75,7 @@ LIST_HEAD(vm_list); + + static cpumask_var_t cpus_hardware_enabled; + static int kvm_usage_count = 0; +-static atomic_t hardware_enable_failed; ++static atomic_unchecked_t hardware_enable_failed; + + struct kmem_cache *kvm_vcpu_cache; + EXPORT_SYMBOL_GPL(kvm_vcpu_cache); +@@ -2247,7 +2247,7 @@ static void hardware_enable_nolock(void *junk) + + if (r) { + cpumask_clear_cpu(cpu, cpus_hardware_enabled); +- atomic_inc(&hardware_enable_failed); ++ atomic_inc_unchecked(&hardware_enable_failed); + printk(KERN_INFO "kvm: enabling virtualization on " + "CPU%d failed\n", cpu); + } +@@ -2301,10 +2301,10 @@ static int hardware_enable_all(void) + + kvm_usage_count++; + if (kvm_usage_count == 1) { +- atomic_set(&hardware_enable_failed, 0); ++ atomic_set_unchecked(&hardware_enable_failed, 0); + on_each_cpu(hardware_enable_nolock, NULL, 1); + +- if (atomic_read(&hardware_enable_failed)) { ++ if (atomic_read_unchecked(&hardware_enable_failed)) { + hardware_disable_all_nolock(); + r = -EBUSY; + } +@@ -2667,7 +2667,7 @@ static void kvm_sched_out(struct preempt_notifier *pn, + kvm_arch_vcpu_put(vcpu); + } + +-int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, ++int kvm_init(const void *opaque, unsigned vcpu_size, unsigned vcpu_align, + struct module *module) + { + int r; +@@ -2730,7 +2730,7 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, + if (!vcpu_align) + vcpu_align = __alignof__(struct kvm_vcpu); + kvm_vcpu_cache = kmem_cache_create("kvm_vcpu", vcpu_size, vcpu_align, +- 0, NULL); ++ SLAB_USERCOPY, NULL); + if (!kvm_vcpu_cache) { + r = -ENOMEM; + goto out_free_3; +@@ -2740,9 +2740,11 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, + if (r) + goto out_free; + +- kvm_chardev_ops.owner = module; +- kvm_vm_fops.owner = module; +- kvm_vcpu_fops.owner = module; ++ pax_open_kernel(); ++ *(void **)&kvm_chardev_ops.owner = module; ++ *(void **)&kvm_vm_fops.owner = module; ++ *(void **)&kvm_vcpu_fops.owner = module; ++ pax_close_kernel(); + + r = misc_register(&kvm_dev); + if (r) { hooks/post-receive -- IPFire 3.x development tree

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[IPFire-SCM] [git.ipfire.org] IPFire 3.x development tree branch, master, updated. 0a57d68881fb3189391c1ffce83b19d2db90df75
by git＠ipfire.org 31 Jul '12

31 Jul '12

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "IPFire 3.x development tree". The branch, master has been updated via 0a57d68881fb3189391c1ffce83b19d2db90df75 (commit) via 3584874a1d765352313d6ee8508a3e9c3f0b459c (commit) via 9695493a47ff5e1c0fa3df93984c7f8f01e95213 (commit) via d8602e2a6aff73e4512d9b54a2d3a6b43a0fbc4a (commit) from a772829da5c360cf15c331bb275df534c653ab61 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 0a57d68881fb3189391c1ffce83b19d2db90df75 Merge: 9695493 3584874 Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Tue Jul 31 21:01:33 2012 +0200 Merge remote-tracking branch 'stevee/plymouth-update' commit 3584874a1d765352313d6ee8508a3e9c3f0b459c Author: Stefan Schantl <stefan.schantl(a)ipfire.org> Date: Tue Jul 31 19:57:53 2012 +0200 plymouth: Update to 0.8.6.1. This release fixes a lot of problems with systemd. Apply a patch to create and link plymouth systemd services files and targets. commit 9695493a47ff5e1c0fa3df93984c7f8f01e95213 Author: Stefan Schantl <stefan.schantl(a)ipfire.org> Date: Tue Jul 31 18:30:00 2012 +0200 dracut: Now requires kpartx instead of multipath-tools. commit d8602e2a6aff73e4512d9b54a2d3a6b43a0fbc4a Author: Stefan Schantl <stefan.schantl(a)ipfire.org> Date: Tue Jul 31 18:28:03 2012 +0200 multipath-tools: Update to latest development snapshot (120613). Introduce own package for kpartx, which is required by dracut. ----------------------------------------------------------------------- Summary of changes: dracut/dracut.nm | 4 +- multipath-tools/multipath-tools.nm | 61 +- multipath-tools/multipath.conf | 90 ++ .../patches/0001-RH-queue-without-daemon.patch | 165 --- .../patches/0001-RH-remove_callout.patch | 279 +++++ ...001-for-upstream-add-tpg_pref-prioritizer.patch | 123 --- .../patches/0002-RH-add-wwids-file.patch | 748 +++++++++++++ multipath-tools/patches/0002-RH-path-checker.patch | 198 ---- .../0002-for-upstream-add-tmo-config-options.patch | 511 --------- .../patches/0003-RH-add-followover.patch | 235 ++++ .../patches/0003-RH-root-init-script.patch | 84 -- .../0003-for-upstream-default-configs.patch | 56 - .../patches/0004-RH-fix-cciss-names.patch | 34 + multipath-tools/patches/0004-RH-fix-kpartx.patch | 48 - multipath-tools/patches/0005-RH-cciss_id.patch | 219 ---- .../0005-RH-dont_start_with_no_config.patch | 16 + .../patches/0006-RH-move-bindings.patch | 56 - ...changes.patch => 0006-RH-multipath.rules.patch} | 52 +- ...7-RH-Make-build-system-RH-Fedora-friendly.patch | 101 ++ .../patches/0007-RH-do-not-remove.patch | 39 - ...8-RH-Make-build-system-RH-Fedora-friendly.patch | 62 -- ...08-RH-multipathd-blacklist-all-by-default.patch | 64 ++ .../patches/0009-RH-add-mpathconf.patch | 494 +++++++++ ...09-RH-multipathd-blacklist-all-by-default.patch | 70 -- .../patches/0010-RH-add-find-multipaths.patch | 222 ++++ ...cker.patch => 0011-RH-add-hp_tur-checker.patch} | 145 ++- .../0011-RH-fix-init-script-LSB-headers.patch | 29 - ....patch => 0012-RH-RHEL5-style-partitions.patch} | 74 +- .../patches/0012-RH-udev-sync-support.patch | 362 ------ .../0013-RH-add-weighted_prio-prioritizer.patch | 546 --------- .../0013-RH-dont-remove-map-on-enomem.patch | 18 + .../patches/0014-RH-deprecate-uid-gid-mode.patch | 90 ++ .../0015-RH-add-multipathd-count-paths-cmd.patch | 150 --- .../patches/0015-RH-use-sync-support.patch | 17 + .../patches/0016-RH-change-configs.patch | 541 +++++++++ .../0016-RHBZ-554561-fix-init-error-msg.patch | 23 - .../patches/0017-RHBZ-554592-man-page-note.patch | 17 - .../patches/0018-RHBZ-554596-SUN-6540-config.patch | 57 - .../0019-RHBZ-554598-fix-multipath-locking.patch | 43 - .../0020-RHBZ-554605-fix-manual-failover.patch | 52 - .../0021-RHBZ-548874-add-find-multipaths.patch | 1153 -------------------- .../0023-RHBZ-557810-emc-invista-config.patch | 52 - .../patches/0024-RHBZ-565933-checker-timeout.patch | 428 -------- ...-create-missing-links-for-systemd-targets.patch | 71 ++ plymouth/patches/plymouth-no-gtk.patch | 31 - plymouth/plymouth.nm | 22 +- 46 files changed, 3243 insertions(+), 4709 deletions(-) create mode 100644 multipath-tools/multipath.conf delete mode 100644 multipath-tools/patches/0001-RH-queue-without-daemon.patch create mode 100644 multipath-tools/patches/0001-RH-remove_callout.patch delete mode 100644 multipath-tools/patches/0001-for-upstream-add-tpg_pref-prioritizer.patch create mode 100644 multipath-tools/patches/0002-RH-add-wwids-file.patch delete mode 100644 multipath-tools/patches/0002-RH-path-checker.patch delete mode 100644 multipath-tools/patches/0002-for-upstream-add-tmo-config-options.patch create mode 100644 multipath-tools/patches/0003-RH-add-followover.patch delete mode 100644 multipath-tools/patches/0003-RH-root-init-script.patch delete mode 100644 multipath-tools/patches/0003-for-upstream-default-configs.patch create mode 100644 multipath-tools/patches/0004-RH-fix-cciss-names.patch delete mode 100644 multipath-tools/patches/0004-RH-fix-kpartx.patch delete mode 100644 multipath-tools/patches/0005-RH-cciss_id.patch create mode 100644 multipath-tools/patches/0005-RH-dont_start_with_no_config.patch delete mode 100644 multipath-tools/patches/0006-RH-move-bindings.patch rename multipath-tools/patches/{0010-RH-multipath-rules-udev-changes.patch => 0006-RH-multipath.rules.patch} (58%) create mode 100644 multipath-tools/patches/0007-RH-Make-build-system-RH-Fedora-friendly.patch delete mode 100644 multipath-tools/patches/0007-RH-do-not-remove.patch delete mode 100644 multipath-tools/patches/0008-RH-Make-build-system-RH-Fedora-friendly.patch create mode 100644 multipath-tools/patches/0008-RH-multipathd-blacklist-all-by-default.patch create mode 100644 multipath-tools/patches/0009-RH-add-mpathconf.patch delete mode 100644 multipath-tools/patches/0009-RH-multipathd-blacklist-all-by-default.patch create mode 100644 multipath-tools/patches/0010-RH-add-find-multipaths.patch rename multipath-tools/patches/{0014-RH-add-hp_tur-checker.patch => 0011-RH-add-hp_tur-checker.patch} (58%) delete mode 100644 multipath-tools/patches/0011-RH-fix-init-script-LSB-headers.patch rename multipath-tools/patches/{0022-RHBZ-557845-RHEL5-style-partitions.patch => 0012-RH-RHEL5-style-partitions.patch} (81%) delete mode 100644 multipath-tools/patches/0012-RH-udev-sync-support.patch delete mode 100644 multipath-tools/patches/0013-RH-add-weighted_prio-prioritizer.patch create mode 100644 multipath-tools/patches/0013-RH-dont-remove-map-on-enomem.patch create mode 100644 multipath-tools/patches/0014-RH-deprecate-uid-gid-mode.patch delete mode 100644 multipath-tools/patches/0015-RH-add-multipathd-count-paths-cmd.patch create mode 100644 multipath-tools/patches/0015-RH-use-sync-support.patch create mode 100644 multipath-tools/patches/0016-RH-change-configs.patch delete mode 100644 multipath-tools/patches/0016-RHBZ-554561-fix-init-error-msg.patch delete mode 100644 multipath-tools/patches/0017-RHBZ-554592-man-page-note.patch delete mode 100644 multipath-tools/patches/0018-RHBZ-554596-SUN-6540-config.patch delete mode 100644 multipath-tools/patches/0019-RHBZ-554598-fix-multipath-locking.patch delete mode 100644 multipath-tools/patches/0020-RHBZ-554605-fix-manual-failover.patch delete mode 100644 multipath-tools/patches/0021-RHBZ-548874-add-find-multipaths.patch delete mode 100644 multipath-tools/patches/0023-RHBZ-557810-emc-invista-config.patch delete mode 100644 multipath-tools/patches/0024-RHBZ-565933-checker-timeout.patch create mode 100644 plymouth/patches/plymouth-0.8.6.1-create-missing-links-for-systemd-targets.patch delete mode 100644 plymouth/patches/plymouth-no-gtk.patch Difference in files: diff --git a/dracut/dracut.nm b/dracut/dracut.nm index 26be6f7..18d9329 100644 --- a/dracut/dracut.nm +++ b/dracut/dracut.nm @@ -5,7 +5,7 @@ name = dracut version = 019 -release = 1 +release = 2 arch = noarch groups = System/Boot @@ -78,11 +78,11 @@ packages gzip iputils kbd + kpartx less libselinux lvm2 mdadm - multipath-tools sysvinit udev util-linux diff --git a/multipath-tools/multipath-tools.nm b/multipath-tools/multipath-tools.nm index 57c0103..63b035a 100644 --- a/multipath-tools/multipath-tools.nm +++ b/multipath-tools/multipath-tools.nm @@ -4,9 +4,12 @@ ############################################################################### name = multipath-tools -version = 0.4.9 +version = %{rel_ver}.%{rel_date} release = 1 +rel_ver = 0.4.9 +rel_date = 120613 + groups = System/Base url = http://christophe.varoqui.free.fr/ license = GPL+ @@ -17,27 +20,77 @@ description instructing the device-mapper multipath kernel module what to do. end -source_dl = -sources = %{name}-091027.tar.gz +thisapp = %{name}-%{rel_date} + +sources = %{thisapp}.tgz build requires gzip libaio-devel libdevmapper-devel + libudev-devel ncurses-devel readline-devel end - DIR_APP = %{DIR_SRC}/%{name} + prepare_cmds + # Fix hardcoded install location for udev rules. + sed -e "s@lib/udev@usr/lib/udev@g" -i multipath/Makefile + end + + # Install everything to the correct locations. + make_install_targets +=\ + bindir=%{sbindir} \ + syslibdir=%{libdir} \ + libdir=%{libdir}/multipath \ + unitdir=%{unitdir} install_cmds + # Remove old SysV init script and folder. rm -rf %{BUILDROOT}/etc/rc.d + + # Install configuration file. + install -m 0664 %{DIR_SOURCE}/multipath.conf %{BUILDROOT}%{sysconfdir}/multipath.conf end end packages package %{name} + configfiles + /etc/multipath.conf + end + + script postin + /usr/bin/systemctl daemon-reload >/dev/null 2>&1 || : + end + + script preun + /usr/bin/systemctl --no-reload disable multipathd.service >/dev/null 2>&1 || : + /usr/bin/systemctl stop multipathd.service >/dev/null 2>&1 || : + end + + script postun + /usr/bin/systemctl daemon-reload >/dev/null 2>&1 || : + end + + script postup + /usr/bin/systemctl daemon-reload >/dev/null 2>&1 || : + /usr/bin/systemctl try-restart multipathd.service >/dev/null 2>&1 || : + end + end + + package kpartx + summary = Partition manager for device-mapper devices. + description + kpartx manages partition creation and removal for device-mapper devices. + end + + files + %{sbindir}/kpartx + %{mandir}/man8/kpartx.8* + end + end package %{name}-devel template DEVEL diff --git a/multipath-tools/multipath.conf b/multipath-tools/multipath.conf new file mode 100644 index 0000000..6bbeadb --- /dev/null +++ b/multipath-tools/multipath.conf @@ -0,0 +1,90 @@ +# This is a basic configuration file with some examples, for device mapper +# multipath. +# For a complete list of the default configuration values, see +# /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf.defaults +# For a list of configuration options with descriptions, see +# /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf.annotated + +## By default, devices with vendor = "IBM" and product = "S/390.*" are +## blacklisted. To enable mulitpathing on these devies, uncomment the +## following lines. +#blacklist_exceptions { +# device { +# vendor "IBM" +# product "S/390.*" +# } +#} + +## Use user friendly names, instead of using WWIDs as names. +defaults { + user_friendly_names yes +} +## +## Here is an example of how to configure some standard options. +## +# +#defaults { +# udev_dir /dev +# polling_interval 10 +# selector "round-robin 0" +# path_grouping_policy multibus +# getuid_callout "/lib/udev/scsi_id --whitelisted --device=/dev/%n" +# prio alua +# path_checker readsector0 +# rr_min_io 100 +# max_fds 8192 +# rr_weight priorities +# failback immediate +# no_path_retry fail +# user_friendly_names yes +#} +## +## The wwid line in the following blacklist section is shown as an example +## of how to blacklist devices by wwid. The 2 devnode lines are the +## compiled in default blacklist. If you want to blacklist entire types +## of devices, such as all scsi devices, you should use a devnode line. +## However, if you want to blacklist specific devices, you should use +## a wwid line. Since there is no guarantee that a specific device will +## not change names on reboot (from /dev/sda to /dev/sdb for example) +## devnode lines are not recommended for blacklisting specific devices. +## +#blacklist { +# wwid 26353900f02796769 +# devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*" +# devnode "^hd[a-z]" +#} +#multipaths { +# multipath { +# wwid 3600508b4000156d700012000000b0000 +# alias yellow +# path_grouping_policy multibus +# path_checker readsector0 +# path_selector "round-robin 0" +# failback manual +# rr_weight priorities +# no_path_retry 5 +# } +# multipath { +# wwid 1DEC_____321816758474 +# alias red +# } +#} +#devices { +# device { +# vendor "COMPAQ " +# product "HSV110 (C)COMPAQ" +# path_grouping_policy multibus +# getuid_callout "/lib/udev/scsi_id --whitelisted --device=/dev/%n" +# path_checker readsector0 +# path_selector "round-robin 0" +# hardware_handler "0" +# failback 15 +# rr_weight priorities +# no_path_retry queue +# } +# device { +# vendor "COMPAQ " +# product "MSA1000 " +# path_grouping_policy multibus +# } +#} diff --git a/multipath-tools/patches/0001-RH-queue-without-daemon.patch b/multipath-tools/patches/0001-RH-queue-without-daemon.patch deleted file mode 100644 index 3834bfc..0000000 --- a/multipath-tools/patches/0001-RH-queue-without-daemon.patch +++ /dev/null @@ -1,165 +0,0 @@ -From 8191fb07d8212e29ad44370abb60e174e1c34bb5 Mon Sep 17 00:00:00 2001 -From: Fabio M. Di Nitto <fdinitto(a)redhat.com> -Date: Tue, 13 Oct 2009 08:15:15 +0200 -Subject: [PATCH 01/12] RH: queue without daemon - -Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com> ---- -:100644 100644 50a728c... 86b1320... M libmultipath/config.h -:100644 100644 ee4de68... 7888e8e... M libmultipath/dict.c -:100644 100644 afd1246... 2e7a0d1... M libmultipath/structs.h -:100644 100644 c222da4... 9afa615... M multipath.conf.annotated -:100644 100644 3e0fd6e... 44d1329... M multipath.conf.synthetic -:100644 100644 41a9bd0... 90de6df... M multipathd/main.c - libmultipath/config.h | 1 + - libmultipath/dict.c | 35 +++++++++++++++++++++++++++++++++++ - libmultipath/structs.h | 6 ++++++ - multipath.conf.annotated | 9 +++++++++ - multipath.conf.synthetic | 1 + - multipathd/main.c | 5 +++++ - 6 files changed, 57 insertions(+), 0 deletions(-) - -Index: multipath-tools/libmultipath/config.h -=================================================================== ---- multipath-tools.orig/libmultipath/config.h -+++ multipath-tools/libmultipath/config.h -@@ -74,6 +74,7 @@ struct config { - int pg_timeout; - int max_fds; - int force_reload; -+ int queue_without_daemon; - int daemon; - int flush_on_last_del; - int attribute_flags; -Index: multipath-tools/libmultipath/dict.c -=================================================================== ---- multipath-tools.orig/libmultipath/dict.c -+++ multipath-tools/libmultipath/dict.c -@@ -362,6 +362,28 @@ def_no_path_retry_handler(vector strvec) - } - - static int -+def_queue_without_daemon(vector strvec) -+{ -+ char * buff; -+ -+ buff = set_value(strvec); -+ if (!buff) -+ return 1; -+ -+ if (!strncmp(buff, "off", 3) || !strncmp(buff, "no", 2) || -+ !strncmp(buff, "0", 1)) -+ conf->queue_without_daemon = QUE_NO_DAEMON_OFF; -+ else if (!strncmp(buff, "on", 2) || !strncmp(buff, "yes", 3) || -+ !strncmp(buff, "1", 1)) -+ conf->queue_without_daemon = QUE_NO_DAEMON_ON; -+ else -+ conf->queue_without_daemon = QUE_NO_DAEMON_UNDEF; -+ -+ free(buff); -+ return 0; -+} -+ -+static int - def_pg_timeout_handler(vector strvec) - { - int pg_timeout; -@@ -1944,6 +1966,18 @@ snprint_def_no_path_retry (char * buff, - } - - static int -+snprint_def_queue_without_daemon (char * buff, int len, void * data) -+{ -+ switch (conf->queue_without_daemon) { -+ case QUE_NO_DAEMON_OFF: -+ return snprintf(buff, len, "no"); -+ case QUE_NO_DAEMON_ON: -+ return snprintf(buff, len, "yes"); -+ } -+ return 0; -+} -+ -+static int - snprint_def_pg_timeout (char * buff, int len, void * data) - { - if (conf->pg_timeout == DEFAULT_PGTIMEOUT) -@@ -2029,6 +2063,7 @@ init_keywords(void) - install_keyword("max_fds", &max_fds_handler, &snprint_max_fds); - install_keyword("rr_weight", &def_weight_handler, &snprint_def_rr_weight); - install_keyword("no_path_retry", &def_no_path_retry_handler, &snprint_def_no_path_retry); -+ install_keyword("queue_without_daemon", &def_queue_without_daemon, &snprint_def_queue_without_daemon); - install_keyword("pg_timeout", &def_pg_timeout_handler, &snprint_def_pg_timeout); - install_keyword("flush_on_last_del", &def_flush_on_last_del_handler, &snprint_def_flush_on_last_del); - install_keyword("user_friendly_names", &names_handler, &snprint_def_user_friendly_names); -Index: multipath-tools/libmultipath/structs.h -=================================================================== ---- multipath-tools.orig/libmultipath/structs.h -+++ multipath-tools/libmultipath/structs.h -@@ -63,6 +63,12 @@ enum pgstates { - PGSTATE_ACTIVE - }; - -+enum queue_without_daemon_states { -+ QUE_NO_DAEMON_UNDEF, -+ QUE_NO_DAEMON_OFF, -+ QUE_NO_DAEMON_ON, -+}; -+ - enum pgtimeouts { - PGTIMEOUT_UNDEF, - PGTIMEOUT_NONE -Index: multipath-tools/multipath.conf.annotated -=================================================================== ---- multipath-tools.orig/multipath.conf.annotated -+++ multipath-tools/multipath.conf.annotated -@@ -153,6 +153,15 @@ - # no_path_retry queue - # - # # -+# # name : queue_without_daemon -+# # scope : multipathd -+# # desc : If set to "no", multipathd will disable queueing for all -+# # devices when it is shut down. -+# # values : yes|no -+# # default : yes -+# queue_without_daemon no -+# -+# # - # # name : user_friendly_names - # # scope : multipath - # # desc : If set to "yes", using the bindings file -Index: multipath-tools/multipath.conf.synthetic -=================================================================== ---- multipath-tools.orig/multipath.conf.synthetic -+++ multipath-tools/multipath.conf.synthetic -@@ -16,6 +16,7 @@ - # rr_weight priorities - # failback immediate - # no_path_retry fail -+# queue_without_daemon no - # user_friendly_names no - # mode 644 - # uid 0 -Index: multipath-tools/multipathd/main.c -=================================================================== ---- multipath-tools.orig/multipathd/main.c -+++ multipath-tools/multipathd/main.c -@@ -1334,6 +1334,8 @@ child (void * param) - pthread_t check_thr, uevent_thr, uxlsnr_thr; - pthread_attr_t log_attr, misc_attr; - struct vectors * vecs; -+ struct multipath * mpp; -+ int i; - - mlockall(MCL_CURRENT | MCL_FUTURE); - -@@ -1422,6 +1424,9 @@ child (void * param) - */ - block_signal(SIGHUP, NULL); - lock(vecs->lock); -+ if (conf->queue_without_daemon == QUE_NO_DAEMON_OFF) -+ vector_foreach_slot(vecs->mpvec, mpp, i) -+ dm_queue_if_no_path(mpp->alias, 0); - remove_maps_and_stop_waiters(vecs); - free_pathvec(vecs->pathvec, FREE_PATHS); - diff --git a/multipath-tools/patches/0001-RH-remove_callout.patch b/multipath-tools/patches/0001-RH-remove_callout.patch new file mode 100644 index 0000000..0c03cc4 --- /dev/null +++ b/multipath-tools/patches/0001-RH-remove_callout.patch @@ -0,0 +1,279 @@ +--- + libmultipath/Makefile | 2 + libmultipath/callout.c | 217 ----------------------------------------------- + libmultipath/callout.h | 7 - + libmultipath/discovery.c | 1 + multipathd/main.c | 1 + 5 files changed, 1 insertion(+), 227 deletions(-) + +Index: multipath-tools-120518/libmultipath/Makefile +=================================================================== +--- multipath-tools-120518.orig/libmultipath/Makefile ++++ multipath-tools-120518/libmultipath/Makefile +@@ -9,7 +9,7 @@ DEVLIB = libmultipath.so + LIBS = $(DEVLIB).$(SONAME) + LIBDEPS = -lpthread -ldl -ldevmapper -ludev + +-OBJS = memory.o parser.o vector.o devmapper.o callout.o \ ++OBJS = memory.o parser.o vector.o devmapper.o \ + hwtable.o blacklist.o util.o dmparser.o config.o \ + structs.o discovery.o propsel.o dict.o \ + pgpolicies.o debug.o regex.o defaults.o uevent.o \ +Index: multipath-tools-120518/libmultipath/callout.c +=================================================================== +--- multipath-tools-120518.orig/libmultipath/callout.c ++++ /dev/null +@@ -1,217 +0,0 @@ +-/* +- * Source: copy of the udev package source file +- * +- * Copyrights of the source file apply +- * Copyright (c) 2004 Christophe Varoqui +- */ +-#include <stdio.h> +-#include <sys/stat.h> +-#include <string.h> +-#include <unistd.h> +-#include <sys/types.h> +-#include <stdlib.h> +-#include <fcntl.h> +-#include <sys/wait.h> +-#include <errno.h> +- +-#include "checkers.h" +-#include "vector.h" +-#include "structs.h" +-#include "util.h" +-#include "debug.h" +- +-int execute_program(char *path, char *value, int len) +-{ +- int retval; +- int count; +- int status; +- int fds[2], null_fd; +- pid_t pid; +- char *pos; +- char arg[CALLOUT_MAX_SIZE]; +- int argc = sizeof(arg) / 2; +- char *argv[argc + 1]; +- int i; +- +- i = 0; +- +- if (strchr(path, ' ')) { +- strlcpy(arg, path, sizeof(arg)); +- pos = arg; +- while (pos != NULL && i < argc) { +- if (pos[0] == '\'') { +- /* don't separate if in apostrophes */ +- pos++; +- argv[i] = strsep(&pos, "\'"); +- while (pos[0] == ' ') +- pos++; +- } else { +- argv[i] = strsep(&pos, " "); +- } +- i++; +- } +- } else { +- argv[i++] = path; +- } +- argv[i] = NULL; +- +- retval = pipe(fds); +- +- if (retval != 0) { +- condlog(0, "error creating pipe for callout: %s", strerror(errno)); +- return -1; +- } +- +- pid = fork(); +- +- switch(pid) { +- case 0: +- /* child */ +- close(STDOUT_FILENO); +- +- /* dup write side of pipe to STDOUT */ +- if (dup(fds[1]) < 0) +- return -1; +- +- /* Ignore writes to stderr */ +- null_fd = open("/dev/null", O_WRONLY); +- if (null_fd > 0) { +- close(STDERR_FILENO); +- dup(null_fd); +- close(null_fd); +- } +- +- retval = execv(argv[0], argv); +- condlog(0, "error execing %s : %s", argv[0], strerror(errno)); +- exit(-1); +- case -1: +- condlog(0, "fork failed: %s", strerror(errno)); +- close(fds[0]); +- close(fds[1]); +- return -1; +- default: +- /* parent reads from fds[0] */ +- close(fds[1]); +- retval = 0; +- i = 0; +- while (1) { +- count = read(fds[0], value + i, len - i-1); +- if (count <= 0) +- break; +- +- i += count; +- if (i >= len-1) { +- condlog(0, "not enough space for response from %s", argv[0]); +- retval = -1; +- break; +- } +- } +- +- if (count < 0) { +- condlog(0, "no response from %s", argv[0]); +- retval = -1; +- } +- +- if (i > 0 && value[i-1] == '\n') +- i--; +- value[i] = '\0'; +- +- wait(&status); +- close(fds[0]); +- +- retval = -1; +- if (WIFEXITED(status)) { +- status = WEXITSTATUS(status); +- if (status == 0) +- retval = 0; +- else +- condlog(0, "%s exitted with %d", argv[0], status); +- } +- else if (WIFSIGNALED(status)) +- condlog(0, "%s was terminated by signal %d", argv[0], WTERMSIG(status)); +- else +- condlog(0, "%s terminated abnormally", argv[0]); +- } +- return retval; +-} +- +-extern int +-apply_format (char * string, char * cmd, struct path * pp) +-{ +- char * pos; +- char * dst; +- char * p; +- char * q; +- int len; +- int myfree; +- +- if (!string) +- return 1; +- +- if (!cmd) +- return 1; +- +- dst = cmd; +- p = dst; +- pos = strchr(string, '%'); +- myfree = CALLOUT_MAX_SIZE; +- +- if (!pos) { +- strcpy(dst, string); +- return 0; +- } +- +- len = (int) (pos - string) + 1; +- myfree -= len; +- +- if (myfree < 2) +- return 1; +- +- snprintf(p, len, "%s", string); +- p += len - 1; +- pos++; +- +- switch (*pos) { +- case 'n': +- len = strlen(pp->dev) + 1; +- myfree -= len; +- +- if (myfree < 2) +- return 1; +- +- snprintf(p, len, "%s", pp->dev); +- for (q = p; q < p + len; q++) { +- if (q && *q == '!') +- *q = '/'; +- } +- p += len - 1; +- break; +- case 'd': +- len = strlen(pp->dev_t) + 1; +- myfree -= len; +- +- if (myfree < 2) +- return 1; +- +- snprintf(p, len, "%s", pp->dev_t); +- p += len - 1; +- break; +- default: +- break; +- } +- pos++; +- +- if (!*pos) +- return 0; +- +- len = strlen(pos) + 1; +- myfree -= len; +- +- if (myfree < 2) +- return 1; +- +- snprintf(p, len, "%s", pos); +- condlog(3, "reformated callout = %s", dst); +- return 0; +-} +- +Index: multipath-tools-120518/libmultipath/callout.h +=================================================================== +--- multipath-tools-120518.orig/libmultipath/callout.h ++++ /dev/null +@@ -1,7 +0,0 @@ +-#ifndef _CALLOUT_H +-#define _CALLOUT_H +- +-int execute_program(char *, char *, int); +-int apply_format (char *, char *, struct path *); +- +-#endif /* _CALLOUT_H */ +Index: multipath-tools-120518/libmultipath/discovery.c +=================================================================== +--- multipath-tools-120518.orig/libmultipath/discovery.c ++++ multipath-tools-120518/libmultipath/discovery.c +@@ -20,7 +20,6 @@ + #include "structs.h" + #include "config.h" + #include "blacklist.h" +-#include "callout.h" + #include "debug.h" + #include "propsel.h" + #include "sg_include.h" +Index: multipath-tools-120518/multipathd/main.c +=================================================================== +--- multipath-tools-120518.orig/multipathd/main.c ++++ multipath-tools-120518/multipathd/main.c +@@ -35,7 +35,6 @@ + #include <hwtable.h> + #include <defaults.h> + #include <structs.h> +-#include <callout.h> + #include <blacklist.h> + #include <structs_vec.h> + #include <dmparser.h> diff --git a/multipath-tools/patches/0001-for-upstream-add-tpg_pref-prioritizer.patch b/multipath-tools/patches/0001-for-upstream-add-tpg_pref-prioritizer.patch deleted file mode 100644 index 93b0af2..0000000 --- a/multipath-tools/patches/0001-for-upstream-add-tpg_pref-prioritizer.patch +++ /dev/null @@ -1,123 +0,0 @@ -From faf6bfc96b98562626e0ea12aecb582032ff4cab Mon Sep 17 00:00:00 2001 -From: Fabio M. Di Nitto <fdinitto(a)redhat.com> -Date: Mon, 19 Oct 2009 07:02:02 +0200 -Subject: [PATCH 1/1] for-upstream: add tpg_pref prioritizer - -Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com> ---- -:100644 100644 fc9277f... 1f40859... M libmultipath/prio.h -:100644 100644 949a60a... 5021c04... M libmultipath/prioritizers/Makefile -:100644 100644 0048a44... 22513ab... M libmultipath/prioritizers/alua.c -:100644 100644 0531052... cd9c29d... M libmultipath/prioritizers/alua_rtpg.c -:100644 100644 bddbbdd... daf95a6... M libmultipath/prioritizers/alua_spc3.h - libmultipath/prio.h | 1 + - libmultipath/prioritizers/Makefile | 10 ++++++++++ - libmultipath/prioritizers/alua.c | 7 +++++++ - libmultipath/prioritizers/alua_rtpg.c | 4 ++++ - libmultipath/prioritizers/alua_spc3.h | 6 ++++++ - 5 files changed, 28 insertions(+), 0 deletions(-) - -diff --git a/libmultipath/prio.h b/libmultipath/prio.h -index fc9277f..1f40859 100644 ---- a/libmultipath/prio.h -+++ b/libmultipath/prio.h -@@ -16,6 +16,7 @@ - * Known prioritizers for use in hwtable.c - */ - #define PRIO_ALUA "alua" -+#define PRIO_TPG_PREF "tpg_pref" - #define PRIO_CONST "const" - #define PRIO_EMC "emc" - #define PRIO_HDS "hds" -diff --git a/libmultipath/prioritizers/Makefile b/libmultipath/prioritizers/Makefile -index 949a60a..5021c04 100644 ---- a/libmultipath/prioritizers/Makefile -+++ b/libmultipath/prioritizers/Makefile -@@ -11,6 +11,7 @@ LIBS = \ - libprioemc.so \ - libpriordac.so \ - libprioalua.so \ -+ libpriotpg_pref.so \ - libprionetapp.so \ - libpriohds.so - -@@ -21,9 +22,18 @@ all: $(LIBS) - libprioalua.so: alua.o alua_rtpg.o - $(CC) $(SHARED_FLAGS) -o $@ $^ - -+libpriotpg_pref.so: pref.o pref_rtpg.o -+ $(CC) $(SHARED_FLAGS) -o $@ $^ -+ - libprio%.so: %.o - $(CC) $(SHARED_FLAGS) -o $@ $^ - -+pref.o: alua.c -+ $(CC) $(CFLAGS) -DTPG_PREF -c -o $@ $< -+ -+pref_rtpg.o: alua_rtpg.c -+ $(CC) $(CFLAGS) -DTPG_PREF -c -o $@ $< -+ - install: $(LIBS) - $(INSTALL_PROGRAM) -m 755 libprio*.so $(DESTDIR)$(libdir) - -diff --git a/libmultipath/prioritizers/alua.c b/libmultipath/prioritizers/alua.c -index 0048a44..22513ab 100644 ---- a/libmultipath/prioritizers/alua.c -+++ b/libmultipath/prioritizers/alua.c -@@ -28,6 +28,12 @@ - int - get_alua_info(int fd) - { -+#ifdef TPG_PREF -+ char * aas_string[] = { -+ [AAS_OPTIMIZED] = "preferred", -+ [AAS_STANDBY] = "non-preferred", -+ }; -+#else - char * aas_string[] = { - [AAS_OPTIMIZED] = "active/optimized", - [AAS_NON_OPTIMIZED] = "active/non-optimized", -@@ -35,6 +41,7 @@ get_alua_info(int fd) - [AAS_UNAVAILABLE] = "unavailable", - [AAS_TRANSITIONING] = "transitioning between states", - }; -+#endif - int rc; - int tpg; - -diff --git a/libmultipath/prioritizers/alua_rtpg.c b/libmultipath/prioritizers/alua_rtpg.c -index 0531052..cd9c29d 100644 ---- a/libmultipath/prioritizers/alua_rtpg.c -+++ b/libmultipath/prioritizers/alua_rtpg.c -@@ -293,7 +293,11 @@ get_asymmetric_access_state(int fd, unsigned int tpg) - "group.\n"); - } else { - PRINT_DEBUG("pref=%i\n", dscr->b0); -+#ifdef TPG_PREF -+ rc = rtpg_tpg_dscr_get_pref(dscr); -+#else - rc = rtpg_tpg_dscr_get_aas(dscr); -+#endif - } - } - } -diff --git a/libmultipath/prioritizers/alua_spc3.h b/libmultipath/prioritizers/alua_spc3.h -index bddbbdd..daf95a6 100644 ---- a/libmultipath/prioritizers/alua_spc3.h -+++ b/libmultipath/prioritizers/alua_spc3.h -@@ -302,6 +302,12 @@ rtpg_tpg_dscr_get_aas(struct rtpg_tpg_dscr *d) - return (d->b0 & 0x0f); - } - -+static inline int -+rtpg_tpg_dscr_get_pref(struct rtpg_tpg_dscr *d) -+{ -+ return ((d->b0 & 0x80)?AAS_OPTIMIZED:AAS_STANDBY); -+} -+ - struct rtpg_data { - unsigned char length[4]; /* size-4 */ - struct rtpg_tpg_dscr data[0]; --- -1.6.5.1 - diff --git a/multipath-tools/patches/0002-RH-add-wwids-file.patch b/multipath-tools/patches/0002-RH-add-wwids-file.patch new file mode 100644 index 0000000..f3014ba --- /dev/null +++ b/multipath-tools/patches/0002-RH-add-wwids-file.patch @@ -0,0 +1,748 @@ +--- + libmultipath/Makefile | 2 + libmultipath/alias.c | 153 --------------------------------------- + libmultipath/alias.h | 1 + libmultipath/configure.c | 3 + libmultipath/defaults.h | 1 + libmultipath/discovery.c | 2 + libmultipath/file.c | 180 +++++++++++++++++++++++++++++++++++++++++++++++ + libmultipath/file.h | 11 ++ + libmultipath/wwids.c | 139 ++++++++++++++++++++++++++++++++++++ + libmultipath/wwids.h | 18 ++++ + multipath/main.c | 37 ++++++++- + 11 files changed, 389 insertions(+), 158 deletions(-) + +Index: multipath-tools-120518/libmultipath/alias.c +=================================================================== +--- multipath-tools-120518.orig/libmultipath/alias.c ++++ multipath-tools-120518/libmultipath/alias.c +@@ -3,19 +3,16 @@ + * Copyright (c) 2005 Benjamin Marzinski, Redhat + */ + #include <stdlib.h> +-#include <sys/types.h> +-#include <sys/stat.h> +-#include <fcntl.h> + #include <errno.h> + #include <unistd.h> + #include <string.h> + #include <limits.h> + #include <stdio.h> +-#include <signal.h> + + #include "debug.h" + #include "uxsock.h" + #include "alias.h" ++#include "file.h" + + + /* +@@ -36,150 +33,6 @@ + * See the file COPYING included with this distribution for more details. + */ + +-static int +-ensure_directories_exist(char *str, mode_t dir_mode) +-{ +- char *pathname; +- char *end; +- int err; +- +- pathname = strdup(str); +- if (!pathname){ +- condlog(0, "Cannot copy bindings file pathname : %s", +- strerror(errno)); +- return -1; +- } +- end = pathname; +- /* skip leading slashes */ +- while (end && *end && (*end == '/')) +- end++; +- +- while ((end = strchr(end, '/'))) { +- /* if there is another slash, make the dir. */ +- *end = '\0'; +- err = mkdir(pathname, dir_mode); +- if (err && errno != EEXIST) { +- condlog(0, "Cannot make directory [%s] : %s", +- pathname, strerror(errno)); +- free(pathname); +- return -1; +- } +- if (!err) +- condlog(3, "Created dir [%s]", pathname); +- *end = '/'; +- end++; +- } +- free(pathname); +- return 0; +-} +- +-static void +-sigalrm(int sig) +-{ +- /* do nothing */ +-} +- +-static int +-lock_bindings_file(int fd) +-{ +- struct sigaction act, oldact; +- sigset_t set, oldset; +- struct flock lock; +- int err; +- +- memset(&lock, 0, sizeof(lock)); +- lock.l_type = F_WRLCK; +- lock.l_whence = SEEK_SET; +- +- act.sa_handler = sigalrm; +- sigemptyset(&act.sa_mask); +- act.sa_flags = 0; +- sigemptyset(&set); +- sigaddset(&set, SIGALRM); +- +- sigaction(SIGALRM, &act, &oldact); +- sigprocmask(SIG_UNBLOCK, &set, &oldset); +- +- alarm(BINDINGS_FILE_TIMEOUT); +- err = fcntl(fd, F_SETLKW, &lock); +- alarm(0); +- +- if (err) { +- if (errno != EINTR) +- condlog(0, "Cannot lock bindings file : %s", +- strerror(errno)); +- else +- condlog(0, "Bindings file is locked. Giving up."); +- } +- +- sigprocmask(SIG_SETMASK, &oldset, NULL); +- sigaction(SIGALRM, &oldact, NULL); +- return err; +- +-} +- +- +-static int +-open_bindings_file(char *file, int *can_write) +-{ +- int fd; +- struct stat s; +- +- if (ensure_directories_exist(file, 0700)) +- return -1; +- *can_write = 1; +- fd = open(file, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR); +- if (fd < 0) { +- if (errno == EROFS) { +- *can_write = 0; +- condlog(3, "Cannot open bindings file [%s] read/write. " +- " trying readonly", file); +- fd = open(file, O_RDONLY); +- if (fd < 0) { +- condlog(0, "Cannot open bindings file [%s] " +- "readonly : %s", file, strerror(errno)); +- return -1; +- } +- } +- else { +- condlog(0, "Cannot open bindings file [%s] : %s", file, +- strerror(errno)); +- return -1; +- } +- } +- if (*can_write && lock_bindings_file(fd) < 0) +- goto fail; +- +- memset(&s, 0, sizeof(s)); +- if (fstat(fd, &s) < 0){ +- condlog(0, "Cannot stat bindings file : %s", strerror(errno)); +- goto fail; +- } +- if (s.st_size == 0) { +- if (*can_write == 0) +- goto fail; +- /* If bindings file is empty, write the header */ +- size_t len = strlen(BINDINGS_FILE_HEADER); +- if (write_all(fd, BINDINGS_FILE_HEADER, len) != len) { +- condlog(0, +- "Cannot write header to bindings file : %s", +- strerror(errno)); +- /* cleanup partially written header */ +- if (ftruncate(fd, 0)) +- condlog(0, "Cannot truncate the header : %s", +- strerror(errno)); +- goto fail; +- } +- fsync(fd); +- condlog(3, "Initialized new bindings file [%s]", file); +- } +- +- return fd; +- +-fail: +- close(fd); +- return -1; +-} + + static int + format_devname(char *name, int id, int len, char *prefix) +@@ -370,7 +223,7 @@ get_user_friendly_alias(char *wwid, char + return NULL; + } + +- fd = open_bindings_file(file, &can_write); ++ fd = open_file(file, &can_write, BINDINGS_FILE_HEADER); + if (fd < 0) + return NULL; + +@@ -414,7 +267,7 @@ get_user_friendly_wwid(char *alias, char + return NULL; + } + +- fd = open_bindings_file(file, &unused); ++ fd = open_file(file, &unused, BINDINGS_FILE_HEADER); + if (fd < 0) + return NULL; + +Index: multipath-tools-120518/libmultipath/alias.h +=================================================================== +--- multipath-tools-120518.orig/libmultipath/alias.h ++++ multipath-tools-120518/libmultipath/alias.h +@@ -1,4 +1,3 @@ +-#define BINDINGS_FILE_TIMEOUT 30 + #define BINDINGS_FILE_HEADER \ + "# Multipath bindings, Version : 1.0\n" \ + "# NOTE: this file is automatically maintained by the multipath program.\n" \ +Index: multipath-tools-120518/libmultipath/configure.c +=================================================================== +--- multipath-tools-120518.orig/libmultipath/configure.c ++++ multipath-tools-120518/libmultipath/configure.c +@@ -37,6 +37,7 @@ + #include "prio.h" + #include "util.h" + #include "uxsock.h" ++#include "wwids.h" + + extern int + setup_map (struct multipath * mpp, char * params, int params_size) +@@ -407,6 +408,8 @@ domap (struct multipath * mpp, char * pa + * DM_DEVICE_CREATE, DM_DEVICE_RENAME, or DM_DEVICE_RELOAD + * succeeded + */ ++ if (mpp->action == ACT_CREATE) ++ remember_wwid(mpp->wwid); + if (!conf->daemon) { + /* multipath client mode */ + dm_switchgroup(mpp->alias, mpp->bestpg); +Index: multipath-tools-120518/libmultipath/defaults.h +=================================================================== +--- multipath-tools-120518.orig/libmultipath/defaults.h ++++ multipath-tools-120518/libmultipath/defaults.h +@@ -24,5 +24,6 @@ + #define DEFAULT_SOCKET "/var/run/multipathd.sock" + #define DEFAULT_CONFIGFILE "/etc/multipath.conf" + #define DEFAULT_BINDINGS_FILE "/etc/multipath/bindings" ++#define DEFAULT_WWIDS_FILE "/etc/multipath/wwids" + + char * set_default (char * str); +Index: multipath-tools-120518/libmultipath/file.c +=================================================================== +--- /dev/null ++++ multipath-tools-120518/libmultipath/file.c +@@ -0,0 +1,180 @@ ++/* ++ * Copyright (c) 2005 Christophe Varoqui ++ * Copyright (c) 2005 Benjamin Marzinski, Redhat ++ */ ++#include <stdlib.h> ++#include <sys/types.h> ++#include <sys/stat.h> ++#include <fcntl.h> ++#include <errno.h> ++#include <unistd.h> ++#include <string.h> ++#include <limits.h> ++#include <stdio.h> ++#include <signal.h> ++ ++#include "file.h" ++#include "debug.h" ++#include "uxsock.h" ++ ++ ++/* ++ * significant parts of this file were taken from iscsi-bindings.c of the ++ * linux-iscsi project. ++ * Copyright (C) 2002 Cisco Systems, Inc. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License as published ++ * by the Free Software Foundation; either version 2 of the License, or ++ * (at your option) any later version. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * See the file COPYING included with this distribution for more details. ++ */ ++ ++static int ++ensure_directories_exist(char *str, mode_t dir_mode) ++{ ++ char *pathname; ++ char *end; ++ int err; ++ ++ pathname = strdup(str); ++ if (!pathname){ ++ condlog(0, "Cannot copy file pathname %s : %s", ++ str, strerror(errno)); ++ return -1; ++ } ++ end = pathname; ++ /* skip leading slashes */ ++ while (end && *end && (*end == '/')) ++ end++; ++ ++ while ((end = strchr(end, '/'))) { ++ /* if there is another slash, make the dir. */ ++ *end = '\0'; ++ err = mkdir(pathname, dir_mode); ++ if (err && errno != EEXIST) { ++ condlog(0, "Cannot make directory [%s] : %s", ++ pathname, strerror(errno)); ++ free(pathname); ++ return -1; ++ } ++ if (!err) ++ condlog(3, "Created dir [%s]", pathname); ++ *end = '/'; ++ end++; ++ } ++ free(pathname); ++ return 0; ++} ++ ++static void ++sigalrm(int sig) ++{ ++ /* do nothing */ ++} ++ ++static int ++lock_file(int fd, char *file_name) ++{ ++ struct sigaction act, oldact; ++ sigset_t set, oldset; ++ struct flock lock; ++ int err; ++ ++ memset(&lock, 0, sizeof(lock)); ++ lock.l_type = F_WRLCK; ++ lock.l_whence = SEEK_SET; ++ ++ act.sa_handler = sigalrm; ++ sigemptyset(&act.sa_mask); ++ act.sa_flags = 0; ++ sigemptyset(&set); ++ sigaddset(&set, SIGALRM); ++ ++ sigaction(SIGALRM, &act, &oldact); ++ sigprocmask(SIG_UNBLOCK, &set, &oldset); ++ ++ alarm(FILE_TIMEOUT); ++ err = fcntl(fd, F_SETLKW, &lock); ++ alarm(0); ++ ++ if (err) { ++ if (errno != EINTR) ++ condlog(0, "Cannot lock %s : %s", file_name, ++ strerror(errno)); ++ else ++ condlog(0, "%s is locked. Giving up.", file_name); ++ } ++ ++ sigprocmask(SIG_SETMASK, &oldset, NULL); ++ sigaction(SIGALRM, &oldact, NULL); ++ return err; ++} ++ ++int ++open_file(char *file, int *can_write, char *header) ++{ ++ int fd; ++ struct stat s; ++ ++ if (ensure_directories_exist(file, 0700)) ++ return -1; ++ *can_write = 1; ++ fd = open(file, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR); ++ if (fd < 0) { ++ if (errno == EROFS) { ++ *can_write = 0; ++ condlog(3, "Cannot open file [%s] read/write. " ++ " trying readonly", file); ++ fd = open(file, O_RDONLY); ++ if (fd < 0) { ++ condlog(0, "Cannot open file [%s] " ++ "readonly : %s", file, strerror(errno)); ++ return -1; ++ } ++ } ++ else { ++ condlog(0, "Cannot open file [%s] : %s", file, ++ strerror(errno)); ++ return -1; ++ } ++ } ++ if (*can_write && lock_file(fd, file) < 0) ++ goto fail; ++ ++ memset(&s, 0, sizeof(s)); ++ if (fstat(fd, &s) < 0){ ++ condlog(0, "Cannot stat file %s : %s", file, strerror(errno)); ++ goto fail; ++ } ++ if (s.st_size == 0) { ++ if (*can_write == 0) ++ goto fail; ++ /* If file is empty, write the header */ ++ size_t len = strlen(header); ++ if (write_all(fd, header, len) != len) { ++ condlog(0, ++ "Cannot write header to file %s : %s", file, ++ strerror(errno)); ++ /* cleanup partially written header */ ++ if (ftruncate(fd, 0)) ++ condlog(0, "Cannot truncate header : %s", ++ strerror(errno)); ++ goto fail; ++ } ++ fsync(fd); ++ condlog(3, "Initialized new file [%s]", file); ++ } ++ ++ return fd; ++ ++fail: ++ close(fd); ++ return -1; ++} +Index: multipath-tools-120518/libmultipath/file.h +=================================================================== +--- /dev/null ++++ multipath-tools-120518/libmultipath/file.h +@@ -0,0 +1,11 @@ ++/* ++ * Copyright (c) 2010 Benjamin Marzinski, Redhat ++ */ ++ ++#ifndef _FILE_H ++#define _FILE_H ++ ++#define FILE_TIMEOUT 30 ++int open_file(char *file, int *can_write, char *header); ++ ++#endif /* _FILE_H */ +Index: multipath-tools-120518/multipath/main.c +=================================================================== +--- multipath-tools-120518.orig/multipath/main.c ++++ multipath-tools-120518/multipath/main.c +@@ -53,6 +53,7 @@ + #include <errno.h> + #include <sys/time.h> + #include <sys/resource.h> ++#include <wwids.h> + #include "dev_t.h" + + int logsink; +@@ -82,7 +83,7 @@ usage (char * progname) + { + fprintf (stderr, VERSION_STRING); + fprintf (stderr, "Usage:\n"); +- fprintf (stderr, " %s [-d] [-r] [-v lvl] [-p pol] [-b fil] [-q] [dev]\n", progname); ++ fprintf (stderr, " %s [-c] [-d] [-r] [-v lvl] [-p pol] [-b fil] [-q] [dev]\n", progname); + fprintf (stderr, " %s -l|-ll|-f [-v lvl] [-b fil] [dev]\n", progname); + fprintf (stderr, " %s -F [-v lvl]\n", progname); + fprintf (stderr, " %s -t\n", progname); +@@ -95,6 +96,7 @@ usage (char * progname) + " -ll show multipath topology (maximum info)\n" \ + " -f flush a multipath device map\n" \ + " -F flush all multipath device maps\n" \ ++ " -c check if a device should be a path in a multipath device\n" \ + " -q allow queue_if_no_path when multipathd is not running\n"\ + " -d dry run, do not create or update devmaps\n" \ + " -t dump internal hardware table\n" \ +@@ -209,6 +211,7 @@ get_dm_mpvec (vector curmp, vector pathv + + if (!conf->dry_run) + reinstate_paths(mpp); ++ remember_wwid(mpp->wwid); + } + return 0; + } +@@ -259,9 +262,13 @@ configure (void) + * if we have a blacklisted device parameter, exit early + */ + if (dev && +- (filter_devnode(conf->blist_devnode, conf->elist_devnode, dev) > 0)) +- goto out; +- ++ (filter_devnode(conf->blist_devnode, ++ conf->elist_devnode, dev) > 0)) { ++ if (conf->dry_run == 2) ++ printf("%s is not a valid multipath device path\n", ++ conf->dev); ++ goto out; ++ } + /* + * scope limiting must be translated into a wwid + * failing the translation is fatal (by policy) +@@ -277,6 +284,15 @@ configure (void) + if (filter_wwid(conf->blist_wwid, conf->elist_wwid, + refwwid) > 0) + goto out; ++ if (conf->dry_run == 2) { ++ if (check_wwids_file(refwwid, 0) == 0){ ++ printf("%s is a valid multipath device path\n", conf->dev); ++ r = 0; ++ } ++ else ++ printf("%s is not a valid multipath device path\n", conf->dev); ++ goto out; ++ } + } + + /* +@@ -412,7 +428,7 @@ main (int argc, char *argv[]) + if (load_config(DEFAULT_CONFIGFILE)) + exit(1); + +- while ((arg = getopt(argc, argv, ":dhl::FfM:v:p:b:Brtq")) != EOF ) { ++ while ((arg = getopt(argc, argv, ":dchl::FfM:v:p:b:Brtq")) != EOF ) { + switch(arg) { + case 1: printf("optarg : %s\n",optarg); + break; +@@ -434,8 +450,12 @@ main (int argc, char *argv[]) + case 'q': + conf->allow_queueing = 1; + break; ++ case 'c': ++ conf->dry_run = 2; ++ break; + case 'd': +- conf->dry_run = 1; ++ if (!conf->dry_run) ++ conf->dry_run = 1; + break; + case 'f': + conf->remove = FLUSH_ONE; +@@ -517,6 +537,11 @@ main (int argc, char *argv[]) + } + dm_init(); + ++ if (conf->dry_run == 2 && ++ (!conf->dev || conf->dev_type == DEV_DEVMAP)) { ++ condlog(0, "the -c option requires a path to check"); ++ goto out; ++ } + if (conf->remove == FLUSH_ONE) { + if (conf->dev_type == DEV_DEVMAP) + r = dm_flush_map(conf->dev); +Index: multipath-tools-120518/libmultipath/Makefile +=================================================================== +--- multipath-tools-120518.orig/libmultipath/Makefile ++++ multipath-tools-120518/libmultipath/Makefile +@@ -15,7 +15,7 @@ OBJS = memory.o parser.o vector.o devmap + pgpolicies.o debug.o regex.o defaults.o uevent.o \ + switchgroup.o uxsock.o print.o alias.o log_pthread.o \ + log.o configure.o structs_vec.o sysfs.o prio.o checkers.o \ +- lock.o waiter.o ++ lock.o waiter.o file.o wwids.o + + LIBDM_API_FLUSH = $(shell grep -Ecs '^[a-z]*[[:space:]]+dm_task_no_flush' /usr/include/libdevmapper.h) + +Index: multipath-tools-120518/libmultipath/wwids.c +=================================================================== +--- /dev/null ++++ multipath-tools-120518/libmultipath/wwids.c +@@ -0,0 +1,139 @@ ++#include <stdlib.h> ++#include <errno.h> ++#include <unistd.h> ++#include <string.h> ++#include <limits.h> ++#include <stdio.h> ++ ++#include "checkers.h" ++#include "vector.h" ++#include "structs.h" ++#include "debug.h" ++#include "uxsock.h" ++#include "file.h" ++#include "wwids.h" ++#include "defaults.h" ++ ++/* ++ * Copyright (c) 2010 Benjamin Marzinski, Redhat ++ */ ++ ++static int ++lookup_wwid(FILE *f, char *wwid) { ++ int c; ++ char buf[LINE_MAX]; ++ int count; ++ ++ while ((c = fgetc(f)) != EOF){ ++ if (c != '/') { ++ if (fgets(buf, LINE_MAX, f) == NULL) ++ return 0; ++ else ++ continue; ++ } ++ count = 0; ++ while ((c = fgetc(f)) != '/') { ++ if (c == EOF) ++ return 0; ++ if (count >= WWID_SIZE - 1) ++ goto next; ++ if (wwid[count] == '\0') ++ goto next; ++ if (c != wwid[count++]) ++ goto next; ++ } ++ if (wwid[count] == '\0') ++ return 1; ++next: ++ if (fgets(buf, LINE_MAX, f) == NULL) ++ return 0; ++ } ++ return 0; ++} ++ ++static int ++write_out_wwid(int fd, char *wwid) { ++ int ret; ++ off_t offset; ++ char buf[WWID_SIZE + 3]; ++ ++ ret = snprintf(buf, WWID_SIZE + 3, "/%s/\n", wwid); ++ if (ret >= (WWID_SIZE + 3) || ret < 0){ ++ condlog(0, "can't format wwid for writing (%d) : %s", ++ ret, strerror(errno)); ++ return -1; ++ } ++ offset = lseek(fd, 0, SEEK_END); ++ if (offset < 0) { ++ condlog(0, "can't seek to the end of wwids file : %s", ++ strerror(errno)); ++ return -1; ++ } ++ if (write_all(fd, buf, strlen(buf)) != strlen(buf)) { ++ condlog(0, "cannot write wwid to wwids file : %s", ++ strerror(errno)); ++ if (ftruncate(fd, offset)) ++ condlog(0, "cannot truncate failed wwid write : %s", ++ strerror(errno)); ++ return -1; ++ } ++ return 1; ++} ++ ++int ++check_wwids_file(char *wwid, int write_wwid) ++{ ++ int fd, can_write, found, ret; ++ FILE *f; ++ fd = open_file(DEFAULT_WWIDS_FILE, &can_write, WWIDS_FILE_HEADER); ++ if (fd < 0) ++ return -1; ++ ++ f = fdopen(fd, "r"); ++ if (!f) { ++ condlog(0,"can't fdopen wwids file : %s", strerror(errno)); ++ close(fd); ++ return -1; ++ } ++ found = lookup_wwid(f, wwid); ++ if (found) { ++ ret = 0; ++ goto out; ++ } ++ if (!write_wwid) { ++ ret = -1; ++ goto out; ++ } ++ if (!can_write) { ++ condlog(0, "wwids file is read-only. Can't write wwid"); ++ ret = -1; ++ goto out; ++ } ++ ++ if (fflush(f) != 0) { ++ condlog(0, "cannot fflush wwids file stream : %s", ++ strerror(errno)); ++ ret = -1; ++ goto out; ++ } ++ ++ ret = write_out_wwid(fd, wwid); ++out: ++ fclose(f); ++ return ret; ++} ++ ++int ++remember_wwid(char *wwid) ++{ ++ int ret = check_wwids_file(wwid, 1); ++ if (ret < 0){ ++ condlog(3, "failed writing wwid %s to wwids file", wwid); ++ return -1; ++ } ++ if (ret == 1) ++ condlog(3, "wrote wwid %s to wwids file", wwid); ++ else ++ condlog(4, "wwid %s already in wwids file", wwid); ++ return 0; ++} +Index: multipath-tools-120518/libmultipath/wwids.h +=================================================================== +--- /dev/null ++++ multipath-tools-120518/libmultipath/wwids.h +@@ -0,0 +1,18 @@ ++/* ++ * Copyright (c) 2010 Benjamin Marzinski, Redhat ++ */ ++ ++#ifndef _WWIDS_H ++#define _WWIDS_H ++ ++#define WWIDS_FILE_HEADER \ ++"# Multipath wwids, Version : 1.0\n" \ ++"# NOTE: This file is automatically maintained by multipath and multipathd.\n" \ ++"# You should not need to edit this file in normal circumstances.\n" \ ++"#\n" \ ++"# Valid WWIDs:\n" ++ ++int remember_wwid(char *wwid); ++int check_wwids_file(char *wwid, int write_wwid); ++ ++#endif /* _WWIDS_H */ +Index: multipath-tools-120518/libmultipath/discovery.c +=================================================================== +--- multipath-tools-120518.orig/libmultipath/discovery.c ++++ multipath-tools-120518/libmultipath/discovery.c +@@ -810,6 +810,8 @@ get_uid (struct path * pp) + + memset(pp->wwid, 0, WWID_SIZE); + value = udev_device_get_property_value(pp->udev, pp->uid_attribute); ++ if ((!value || strlen(value) == 0) && conf->dry_run == 2) ++ value = getenv(pp->uid_attribute); + if (value && strlen(value)) { + size_t len = WWID_SIZE; + diff --git a/multipath-tools/patches/0002-RH-path-checker.patch b/multipath-tools/patches/0002-RH-path-checker.patch deleted file mode 100644 index 37864ed..0000000 --- a/multipath-tools/patches/0002-RH-path-checker.patch +++ /dev/null @@ -1,198 +0,0 @@ -From f9ddbc18b7580f75c15bf6f3e10f08d6f016caca Mon Sep 17 00:00:00 2001 -From: Fabio M. Di Nitto <fdinitto(a)redhat.com> -Date: Tue, 13 Oct 2009 08:18:00 +0200 -Subject: [PATCH 02/12] RH: path checker - -Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com> ---- -:100644 100644 e06dc52... 47107a2... M libmultipath/checkers/tur.c -:100644 100644 98d1618... 00aa5ea... M libmultipath/discovery.c -:100644 100644 7283f36... 17cd4af... M libmultipath/discovery.h -:100644 100644 90de6df... 5d3625a... M multipathd/main.c - libmultipath/checkers/tur.c | 1 - - libmultipath/discovery.c | 62 +++++++++++++++++++++++++++++++++--------- - libmultipath/discovery.h | 2 + - multipathd/main.c | 21 +------------- - 4 files changed, 52 insertions(+), 34 deletions(-) - -Index: multipath-tools/libmultipath/checkers/tur.c -=================================================================== ---- multipath-tools.orig/libmultipath/checkers/tur.c -+++ multipath-tools/libmultipath/checkers/tur.c -@@ -69,7 +69,6 @@ libcheck_check (struct checker * c) - case DID_NO_CONNECT: - case DID_BAD_TARGET: - case DID_ABORT: -- case DID_TRANSPORT_DISRUPTED: - case DID_TRANSPORT_FAILFAST: - break; - default: -Index: multipath-tools/libmultipath/discovery.c -=================================================================== ---- multipath-tools.orig/libmultipath/discovery.c -+++ multipath-tools/libmultipath/discovery.c -@@ -616,10 +616,9 @@ struct sysfs_device *sysfs_device_from_p - } - - int --path_offline (struct path * pp) -+path_state (struct path * pp, char * buff) - { - struct sysfs_device * parent; -- char buff[SCSI_STATE_SIZE]; - - pp->sysdev = sysfs_device_from_path(pp); - if (!pp->sysdev) { -@@ -641,6 +640,16 @@ path_offline (struct path * pp) - return 1; - - condlog(3, "%s: state = %s", pp->dev, buff); -+ return 0; -+} -+ -+int -+path_offline (struct path * pp) -+{ -+ char buff[SCSI_STATE_SIZE]; -+ -+ if (path_state(pp, buff)) -+ return 1; - - if (!strncmp(buff, "offline", 7)) { - pp->offline = 1; -@@ -650,6 +659,21 @@ path_offline (struct path * pp) - return 0; - } - -+int -+path_blocked (struct path * pp) -+{ -+ char buff[SCSI_STATE_SIZE]; -+ -+ if (pp->bus != SYSFS_BUS_SCSI) -+ return 0; -+ if (path_state(pp, buff)) -+ return 0; -+ if (!strncmp(buff, "blocked", 7)) { -+ return 1; -+ } -+ return 0; -+} -+ - extern int - sysfs_pathinfo(struct path * pp) - { -@@ -736,36 +760,43 @@ cciss_ioctl_pathinfo (struct path * pp, - return 0; - } - --static int --get_state (struct path * pp) -+int -+get_state (struct path * pp, int daemon) - { - struct checker * c = &pp->checker; -+ int state; - - condlog(3, "%s: get_state", pp->dev); - - if (!checker_selected(c)) { -+ if (daemon) -+ pathinfo(pp, conf->hwtable, DI_SYSFS); - select_checker(pp); - if (!checker_selected(c)) { - condlog(3, "%s: No checker selected", pp->dev); -- return 1; -+ return PATH_UNCHECKED; - } - checker_set_fd(c, pp->fd); - if (checker_init(c, pp->mpp?&pp->mpp->mpcontext:NULL)) { - condlog(3, "%s: checker init failed", pp->dev); -- return 1; -+ return PATH_UNCHECKED; - } - } - if (path_offline(pp)) { - condlog(3, "%s: path offline", pp->dev); -- pp->state = PATH_DOWN; -- return 0; -+ return PATH_DOWN; - } -- pp->state = checker_check(c); -- condlog(3, "%s: state = %i", pp->dev, pp->state); -- if (pp->state == PATH_DOWN && strlen(checker_message(c))) -+ if (daemon) { -+ if (path_blocked(pp)) -+ return PATH_PENDING; -+ checker_set_async(c); -+ } -+ state = checker_check(c); -+ condlog(3, "%s: state = %i", pp->dev, state); -+ if (state == PATH_DOWN && strlen(checker_message(c))) - condlog(3, "%s: checker msg is \"%s\"", - pp->dev, checker_message(c)); -- return 0; -+ return state; - } - - static int -@@ -850,8 +881,11 @@ pathinfo (struct path *pp, vector hwtabl - cciss_ioctl_pathinfo(pp, mask)) - goto blank; - -- if (mask & DI_CHECKER && get_state(pp)) -- goto blank; -+ if (mask & DI_CHECKER) { -+ pp->state = get_state(pp, 0); -+ if (pp->state == PATH_UNCHECKED || pp->state == PATH_WILD) -+ goto blank; -+ } - - /* - * Retrieve path priority, even for PATH_DOWN paths if it has never -Index: multipath-tools/libmultipath/discovery.h -=================================================================== ---- multipath-tools.orig/libmultipath/discovery.h -+++ multipath-tools/libmultipath/discovery.h -@@ -30,6 +30,8 @@ int path_discovery (vector pathvec, stru - int do_tur (char *); - int devt2devname (char *, char *); - int path_offline (struct path *); -+int get_state (struct path * pp, int daemon); -+int path_blocked (struct path *); - int pathinfo (struct path *, vector hwtable, int mask); - struct path * store_pathinfo (vector pathvec, vector hwtable, - char * devname, int flag); -Index: multipath-tools/multipathd/main.c -=================================================================== ---- multipath-tools.orig/multipathd/main.c -+++ multipath-tools/multipathd/main.c -@@ -908,26 +908,9 @@ check_path (struct vectors * vecs, struc - */ - pp->tick = conf->checkint; - -- if (!checker_selected(&pp->checker)) { -- pathinfo(pp, conf->hwtable, DI_SYSFS); -- select_checker(pp); -- } -- if (!checker_selected(&pp->checker)) { -- condlog(0, "%s: checker is not set", pp->dev); -- return; -- } -- /* -- * Set checker in async mode. -- * Honored only by checker implementing the said mode. -- */ -- checker_set_async(&pp->checker); -- -- if (path_offline(pp)) -- newstate = PATH_DOWN; -- else -- newstate = checker_check(&pp->checker); -+ newstate = get_state(pp, 1); - -- if (newstate < 0) { -+ if (newstate == PATH_WILD || newstate == PATH_UNCHECKED) { - condlog(2, "%s: unusable path", pp->dev); - pathinfo(pp, conf->hwtable, 0); - return; diff --git a/multipath-tools/patches/0002-for-upstream-add-tmo-config-options.patch b/multipath-tools/patches/0002-for-upstream-add-tmo-config-options.patch deleted file mode 100644 index dba3659..0000000 --- a/multipath-tools/patches/0002-for-upstream-add-tmo-config-options.patch +++ /dev/null @@ -1,511 +0,0 @@ ---- - libmultipath/config.h | 4 + - libmultipath/configure.c | 3 + - libmultipath/dict.c | 102 +++++++++++++++++++++++++++++++++++++++++++++ - libmultipath/discovery.c | 37 ++++++++++++++++ - libmultipath/discovery.h | 1 - libmultipath/propsel.c | 42 ++++++++++++++++++ - libmultipath/propsel.h | 2 - libmultipath/structs.h | 2 - libmultipath/sysfs.c | 56 ++++++++++++++++++++++++ - libmultipath/sysfs.h | 3 - - multipath.conf.annotated | 38 ++++++++++++++++ - multipath/multipath.conf.5 | 15 ++++++ - 12 files changed, 303 insertions(+), 2 deletions(-) - -Index: multipath-tools-091020/multipath.conf.annotated -=================================================================== ---- multipath-tools-091020.orig/multipath.conf.annotated -+++ multipath-tools-091020/multipath.conf.annotated -@@ -191,6 +191,25 @@ - # # default : determined by the process - # gid disk - # -+# # -+# # name : fast_io_fail_tmo -+# # scope : multipath & multipathd -+# # desc : The number of seconds the scsi layer will wait after a -+# # problem has been detected on a FC remote port before failing -+# # IO to devices on that remote port. -+# # values : off | n >= 0 (smaller than dev_loss_tmo) -+# # default : determined by the OS -+# fast_io_fail_tmo 5 -+# -+# # -+# # name : dev_loss_tmo -+# # scope : multipath & multipathd -+# # desc : The number of seconds the scsi layer will wait after a -+# # problem has been detected on a FC remote port before -+# # removing it from the system. -+# # values : n > 0 -+# # default : determined by the OS -+# dev_loss_tmo 600 - #} - # - ## -@@ -504,7 +523,6 @@ - # # desc : If set to "yes", multipathd will disable queueing - # # when the last path to a device has been deleted. - # # values : yes|no --# # default : no - # # - # flush_on_last_del yes - # -@@ -514,6 +532,24 @@ - # # desc : product strings to blacklist for this vendor - # # - # product_blacklist LUN_Z -+# -+# # -+# # name : fast_io_fail_tmo -+# # scope : multipath & multipathd -+# # desc : The number of seconds the scsi layer will wait after -+# # a problem has been detected on a FC remote port -+# # before failing IO to devices on that remote port. -+# # values : off | n >= 0 (smaller than dev_loss_tmo) -+# fast_io_fail_tmo 5 -+# -+# # -+# # name : dev_loss_tmo -+# # scope : multipath & multipathd -+# # desc : The number of seconds the scsi layer will wait after -+# # a problem has been detected on a FC remote port -+# # before removing it from the system. -+# # values : n > 0 -+# dev_loss_tmo 600 - # } - # device { - # vendor "COMPAQ " -Index: multipath-tools-091020/multipath/multipath.conf.5 -=================================================================== ---- multipath-tools-091020.orig/multipath/multipath.conf.5 -+++ multipath-tools-091020/multipath/multipath.conf.5 -@@ -240,6 +240,17 @@ this to the system limit from /proc/sys/ - maximum number of open fds is taken from the calling process. It is usually - 1024. To be safe, this should be set to the maximum number of paths plus 32, - if that number is greated than 1024. -+.TP -+.B fast_io_fail_tmo -+Specify the number of seconds the scsi layer will wait after a problem has been -+detected on a FC remote port before failing IO to devices on that remote port. -+This should be smaller than dev_loss_tmo. Setting this to -+.I off -+will disable the timeout. -+.TP -+.B dev_loss_tmo -+Specify the number of seconds the scsi layer will wait after a problem has -+been detected on a FC remote port before removing it from the system. - . - .SH "blacklist section" - The -@@ -384,6 +395,10 @@ section: - .B no_path_retry - .TP - .B rr_min_io -+.TP -+.B fast_io_fail_tmo -+.TP -+.B dev_loss_tmo - .RE - .PD - .LP -Index: multipath-tools-091020/libmultipath/dict.c -=================================================================== ---- multipath-tools-091020.orig/libmultipath/dict.c -+++ multipath-tools-091020/libmultipath/dict.c -@@ -37,6 +37,35 @@ polling_interval_handler(vector strvec) - } - - static int -+def_fast_io_fail_handler(vector strvec) -+{ -+ char * buff; -+ -+ buff = set_value(strvec); -+ if (strlen(buff) == 3 && !strcmp(buff, "off")) -+ conf->fast_io_fail = -1; -+ else if (sscanf(buff, "%d", &conf->fast_io_fail) != 1 || -+ conf->fast_io_fail < -1) -+ conf->fast_io_fail = 0; -+ -+ FREE(buff); -+ return 0; -+} -+ -+static int -+def_dev_loss_handler(vector strvec) -+{ -+ char * buff; -+ -+ buff = set_value(strvec); -+ if (sscanf(buff, "%u", &conf->dev_loss) != 1) -+ conf->dev_loss = 0; -+ -+ FREE(buff); -+ return 0; -+} -+ -+static int - verbosity_handler(vector strvec) - { - char * buff; -@@ -628,6 +657,37 @@ bl_product_handler(vector strvec) - } - - static int -+hw_fast_io_fail_handler(vector strvec) -+{ -+ char * buff; -+ struct hwentry * hwe = VECTOR_LAST_SLOT(conf->hwtable); -+ -+ buff = set_value(strvec); -+ if (strlen(buff) == 3 && !strcmp(buff, "off")) -+ hwe->fast_io_fail = -1; -+ else if (sscanf(buff, "%d", &hwe->fast_io_fail) != 1 || -+ hwe->fast_io_fail < -1) -+ hwe->fast_io_fail = 0; -+ -+ FREE(buff); -+ return 0; -+} -+ -+static int -+hw_dev_loss_handler(vector strvec) -+{ -+ char * buff; -+ struct hwentry * hwe = VECTOR_LAST_SLOT(conf->hwtable); -+ -+ buff = set_value(strvec); -+ if (sscanf(buff, "%u", &hwe->dev_loss) != 1) -+ hwe->dev_loss = 0; -+ -+ FREE(buff); -+ return 0; -+} -+ -+static int - hw_pgpolicy_handler(vector strvec) - { - char * buff; -@@ -1390,6 +1450,26 @@ snprint_mp_flush_on_last_del (char * buf - } - - static int -+snprint_hw_fast_io_fail(char * buff, int len, void * data) -+{ -+ struct hwentry * hwe = (struct hwentry *)data; -+ if (!hwe->fast_io_fail) -+ return 0; -+ if (hwe->fast_io_fail == -1) -+ return snprintf(buff, len, "off"); -+ return snprintf(buff, len, "%d", hwe->fast_io_fail); -+} -+ -+static int -+snprint_hw_dev_loss(char * buff, int len, void * data) -+{ -+ struct hwentry * hwe = (struct hwentry *)data; -+ if (!hwe->dev_loss) -+ return 0; -+ return snprintf(buff, len, "%u", hwe->dev_loss); -+} -+ -+static int - snprint_hw_vendor (char * buff, int len, void * data) - { - struct hwentry * hwe = (struct hwentry *)data; -@@ -1640,6 +1720,24 @@ snprint_def_polling_interval (char * buf - } - - static int -+snprint_def_fast_io_fail(char * buff, int len, void * data) -+{ -+ if (!conf->fast_io_fail) -+ return 0; -+ if (conf->fast_io_fail == -1) -+ return snprintf(buff, len, "off"); -+ return snprintf(buff, len, "%d", conf->fast_io_fail); -+} -+ -+static int -+snprint_def_dev_loss(char * buff, int len, void * data) -+{ -+ if (!conf->dev_loss) -+ return 0; -+ return snprintf(buff, len, "%u", conf->dev_loss); -+} -+ -+static int - snprint_def_verbosity (char * buff, int len, void * data) - { - if (conf->checkint == DEFAULT_VERBOSITY) -@@ -1937,6 +2035,8 @@ init_keywords(void) - install_keyword("mode", &def_mode_handler, &snprint_def_mode); - install_keyword("uid", &def_uid_handler, &snprint_def_uid); - install_keyword("gid", &def_gid_handler, &snprint_def_gid); -+ install_keyword("fast_io_fail_tmo", &def_fast_io_fail_handler, &snprint_def_fast_io_fail); -+ install_keyword("dev_loss_tmo", &def_dev_loss_handler, &snprint_def_dev_loss); - __deprecated install_keyword("default_selector", &def_selector_handler, NULL); - __deprecated install_keyword("default_path_grouping_policy", &def_pgpolicy_handler, NULL); - __deprecated install_keyword("default_getuid_callout", &def_getuid_callout_handler, NULL); -@@ -1991,6 +2091,8 @@ init_keywords(void) - install_keyword("rr_min_io", &hw_minio_handler, &snprint_hw_rr_min_io); - install_keyword("pg_timeout", &hw_pg_timeout_handler, &snprint_hw_pg_timeout); - install_keyword("flush_on_last_del", &hw_flush_on_last_del_handler, &snprint_hw_flush_on_last_del); -+ install_keyword("fast_io_fail_tmo", &hw_fast_io_fail_handler, &snprint_hw_fast_io_fail); -+ install_keyword("dev_loss_tmo", &hw_dev_loss_handler, &snprint_hw_dev_loss); - install_sublevel_end(); - - install_keyword_root("multipaths", &multipaths_handler); -Index: multipath-tools-091020/libmultipath/config.h -=================================================================== ---- multipath-tools-091020.orig/libmultipath/config.h -+++ multipath-tools-091020/libmultipath/config.h -@@ -31,6 +31,8 @@ struct hwentry { - int minio; - int pg_timeout; - int flush_on_last_del; -+ int fast_io_fail; -+ unsigned int dev_loss; - char * bl_product; - }; - -@@ -75,6 +77,8 @@ struct config { - int daemon; - int flush_on_last_del; - int attribute_flags; -+ int fast_io_fail; -+ unsigned int dev_loss; - uid_t uid; - gid_t gid; - mode_t mode; -Index: multipath-tools-091020/libmultipath/propsel.c -=================================================================== ---- multipath-tools-091020.orig/libmultipath/propsel.c -+++ multipath-tools-091020/libmultipath/propsel.c -@@ -428,6 +428,48 @@ select_pg_timeout(struct multipath *mp) - } - - extern int -+select_fast_io_fail(struct multipath *mp) -+{ -+ if (mp->hwe && mp->hwe->fast_io_fail) { -+ mp->fast_io_fail = mp->hwe->fast_io_fail; -+ if (mp->fast_io_fail == -1) -+ condlog(3, "%s: fast_io_fail_tmo = off (controller default)", mp->alias); -+ else -+ condlog(3, "%s: fast_io_fail_tmo = %d (controller default)", mp->alias, mp->fast_io_fail); -+ return 0; -+ } -+ if (conf->fast_io_fail) { -+ mp->fast_io_fail = conf->fast_io_fail; -+ if (mp->fast_io_fail == -1) -+ condlog(3, "%s: fast_io_fail_tmo = off (config file default)", mp->alias); -+ else -+ condlog(3, "%s: fast_io_fail_tmo = %d (config file default)", mp->alias, mp->fast_io_fail); -+ return 0; -+ } -+ mp->fast_io_fail = 0; -+ return 0; -+} -+ -+extern int -+select_dev_loss(struct multipath *mp) -+{ -+ if (mp->hwe && mp->hwe->dev_loss) { -+ mp->dev_loss = mp->hwe->dev_loss; -+ condlog(3, "%s: dev_loss_tmo = %u (controller default)", -+ mp->alias, mp->dev_loss); -+ return 0; -+ } -+ if (conf->dev_loss) { -+ mp->dev_loss = conf->dev_loss; -+ condlog(3, "%s: dev_loss_tmo = %u (config file default)", -+ mp->alias, mp->dev_loss); -+ return 0; -+ } -+ mp->dev_loss = 0; -+ return 0; -+} -+ -+extern int - select_flush_on_last_del(struct multipath *mp) - { - if (mp->flush_on_last_del == FLUSH_IN_PROGRESS) -Index: multipath-tools-091020/libmultipath/structs.h -=================================================================== ---- multipath-tools-091020.orig/libmultipath/structs.h -+++ multipath-tools-091020/libmultipath/structs.h -@@ -166,6 +166,8 @@ struct multipath { - int pg_timeout; - int flush_on_last_del; - int attribute_flags; -+ int fast_io_fail; -+ unsigned int dev_loss; - uid_t uid; - gid_t gid; - mode_t mode; -Index: multipath-tools-091020/libmultipath/configure.c -=================================================================== ---- multipath-tools-091020.orig/libmultipath/configure.c -+++ multipath-tools-091020/libmultipath/configure.c -@@ -70,7 +70,10 @@ setup_map (struct multipath * mpp) - select_mode(mpp); - select_uid(mpp); - select_gid(mpp); -+ select_fast_io_fail(mpp); -+ select_dev_loss(mpp); - -+ sysfs_set_scsi_tmo(mpp); - /* - * assign paths to path groups -- start with no groups and all paths - * in mpp->paths -Index: multipath-tools-091020/libmultipath/discovery.c -=================================================================== ---- multipath-tools-091020.orig/libmultipath/discovery.c -+++ multipath-tools-091020/libmultipath/discovery.c -@@ -204,6 +204,43 @@ sysfs_get_fc_nodename (struct sysfs_devi - return 1; - } - -+int -+sysfs_set_scsi_tmo (struct multipath *mpp) -+{ -+ char attr_path[SYSFS_PATH_SIZE]; -+ struct path *pp; -+ int i; -+ char value[11]; -+ -+ if (!mpp->dev_loss && !mpp->fast_io_fail) -+ return 0; -+ vector_foreach_slot(mpp->paths, pp, i) { -+ if (safe_snprintf(attr_path, SYSFS_PATH_SIZE, -+ "/class/fc_remote_ports/rport-%d:%d-%d", -+ pp->sg_id.host_no, pp->sg_id.channel, -+ pp->sg_id.scsi_id)) { -+ condlog(0, "attr_path '/class/fc_remote_ports/rport-%d:%d-%d' too large", pp->sg_id.host_no, pp->sg_id.channel, pp->sg_id.scsi_id); -+ return 1; -+ } -+ if (mpp->dev_loss){ -+ snprintf(value, 11, "%u", mpp->dev_loss); -+ if (sysfs_attr_set_value(attr_path, "dev_loss_tmo", -+ value)) -+ return 1; -+ } -+ if (mpp->fast_io_fail){ -+ if (mpp->fast_io_fail == -1) -+ sprintf(value, "off"); -+ else -+ snprintf(value, 11, "%u", mpp->fast_io_fail); -+ if (sysfs_attr_set_value(attr_path, "fast_io_fail", -+ value)) -+ return 1; -+ } -+ } -+ return 0; -+} -+ - static int - opennode (char * dev, int mode) - { -Index: multipath-tools-091020/libmultipath/propsel.h -=================================================================== ---- multipath-tools-091020.orig/libmultipath/propsel.h -+++ multipath-tools-091020/libmultipath/propsel.h -@@ -15,3 +15,5 @@ int select_minio(struct multipath *mp); - int select_mode(struct multipath *mp); - int select_uid(struct multipath *mp); - int select_gid(struct multipath *mp); -+int select_fast_io_fail(struct multipath *mp); -+int select_dev_loss(struct multipath *mp); -Index: multipath-tools-091020/libmultipath/discovery.h -=================================================================== ---- multipath-tools-091020.orig/libmultipath/discovery.h -+++ multipath-tools-091020/libmultipath/discovery.h -@@ -33,6 +33,7 @@ int path_offline (struct path *); - int pathinfo (struct path *, vector hwtable, int mask); - struct path * store_pathinfo (vector pathvec, vector hwtable, - char * devname, int flag); -+int sysfs_set_scsi_tmo (struct multipath *mpp); - - /* - * discovery bitmask -Index: multipath-tools-091020/libmultipath/sysfs.c -=================================================================== ---- multipath-tools-091020.orig/libmultipath/sysfs.c -+++ multipath-tools-091020/libmultipath/sysfs.c -@@ -356,6 +356,62 @@ void sysfs_device_put(struct sysfs_devic - return; - } - -+int -+sysfs_attr_set_value(const char *devpath, const char *attr_name, -+ const char *value) -+{ -+ char path_full[PATH_SIZE]; -+ int sysfs_len; -+ struct stat statbuf; -+ int fd, value_len, ret = -1; -+ -+ dbg("open '%s'/'%s'", devpath, attr_name); -+ sysfs_len = snprintf(path_full, PATH_SIZE, "%s%s/%s", sysfs_path, -+ devpath, attr_name); -+ if (sysfs_len >= PATH_SIZE || sysfs_len < 0) { -+ if (sysfs_len < 0) -+ dbg("cannot copy sysfs path %s%s/%s : %s", sysfs_path, -+ devpath, attr_name, strerror(errno)); -+ else -+ dbg("sysfs_path %s%s/%s too large", sysfs_path, -+ devpath, attr_name); -+ goto out; -+ } -+ -+ if (stat(path_full, &statbuf) != 0) { -+ dbg("stat '%s' failed: %s" path_full, strerror(errno)); -+ goto out; -+ } -+ -+ /* skip directories */ -+ if (S_ISDIR(statbuf.st_mode)) -+ goto out; -+ -+ if ((statbuf.st_mode & S_IWUSR) == 0) -+ goto out; -+ -+ fd = open(path_full, O_WRONLY); -+ if (fd < 0) { -+ dbg("attribute '%s' can not be opened: %s", -+ path_full, strerror(errno)); -+ goto out; -+ } -+ value_len = strlen(value) + 1; -+ ret = write(fd, value, value_len); -+ if (ret == value_len) -+ ret = 0; -+ else if (ret < 0) -+ dbg("write to %s failed: %s", path_full, strerror(errno)); -+ else { -+ dbg("tried to write %d to %s. Wrote %d\n", value_len, -+ path_full, ret); -+ ret = -1; -+ } -+out: -+ return ret; -+} -+ -+ - char *sysfs_attr_get_value(const char *devpath, const char *attr_name) - { - char path_full[PATH_SIZE]; -Index: multipath-tools-091020/libmultipath/sysfs.h -=================================================================== ---- multipath-tools-091020.orig/libmultipath/sysfs.h -+++ multipath-tools-091020/libmultipath/sysfs.h -@@ -22,5 +22,6 @@ void sysfs_device_put(struct sysfs_devic - char *sysfs_attr_get_value(const char *devpath, const char *attr_name); - int sysfs_resolve_link(char *path, size_t size); - int sysfs_get_size (struct sysfs_device * dev, unsigned long long * size); -- -+int sysfs_attr_set_value(const char *devpath, const char *attr_name, -+ const char *value); - #endif diff --git a/multipath-tools/patches/0003-RH-add-followover.patch b/multipath-tools/patches/0003-RH-add-followover.patch new file mode 100644 index 0000000..9aeecf4 --- /dev/null +++ b/multipath-tools/patches/0003-RH-add-followover.patch @@ -0,0 +1,235 @@ +--- + libmultipath/dict.c | 12 ++++++++++++ + libmultipath/discovery.c | 6 +++--- + libmultipath/print.c | 2 ++ + libmultipath/structs.h | 4 +++- + multipath/main.c | 2 +- + multipath/multipath.conf.5 | 5 +++++ + multipathd/main.c | 35 ++++++++++++++++++++++++++++++++++- + 7 files changed, 60 insertions(+), 6 deletions(-) + +Index: multipath-tools-120518/libmultipath/dict.c +=================================================================== +--- multipath-tools-120518.orig/libmultipath/dict.c ++++ multipath-tools-120518/libmultipath/dict.c +@@ -398,6 +398,8 @@ default_failback_handler(vector strvec) + conf->pgfailback = -FAILBACK_MANUAL; + else if (strlen(buff) == 9 && !strcmp(buff, "immediate")) + conf->pgfailback = -FAILBACK_IMMEDIATE; ++ else if (strlen(buff) == 10 && !strcmp(buff, "followover")) ++ conf->pgfailback = -FAILBACK_FOLLOWOVER; + else + conf->pgfailback = atoi(buff); + +@@ -1053,6 +1055,8 @@ hw_failback_handler(vector strvec) + hwe->pgfailback = -FAILBACK_MANUAL; + else if (strlen(buff) == 9 && !strcmp(buff, "immediate")) + hwe->pgfailback = -FAILBACK_IMMEDIATE; ++ else if (strlen(buff) == 10 && !strcmp(buff, "followover")) ++ hwe->pgfailback = -FAILBACK_FOLLOWOVER; + else + hwe->pgfailback = atoi(buff); + +@@ -1351,6 +1355,8 @@ mp_failback_handler(vector strvec) + mpe->pgfailback = -FAILBACK_MANUAL; + else if (strlen(buff) == 9 && !strcmp(buff, "immediate")) + mpe->pgfailback = -FAILBACK_IMMEDIATE; ++ else if (strlen(buff) == 10 && !strcmp(buff, "followover")) ++ mpe->pgfailback = -FAILBACK_FOLLOWOVER; + else + mpe->pgfailback = atoi(buff); + +@@ -1769,6 +1775,8 @@ snprint_mp_failback (char * buff, int le + return snprintf(buff, len, "manual"); + case -FAILBACK_IMMEDIATE: + return snprintf(buff, len, "immediate"); ++ case -FAILBACK_FOLLOWOVER: ++ return snprintf(buff, len, "followover"); + default: + return snprintf(buff, len, "%i", mpe->pgfailback); + } +@@ -2130,6 +2138,8 @@ snprint_hw_failback (char * buff, int le + return snprintf(buff, len, "manual"); + case -FAILBACK_IMMEDIATE: + return snprintf(buff, len, "immediate"); ++ case -FAILBACK_FOLLOWOVER: ++ return snprintf(buff, len, "followover"); + default: + return snprintf(buff, len, "%i", hwe->pgfailback); + } +@@ -2394,6 +2404,8 @@ snprint_def_failback (char * buff, int l + return snprintf(buff, len, "manual"); + case -FAILBACK_IMMEDIATE: + return snprintf(buff, len, "immediate"); ++ case -FAILBACK_FOLLOWOVER: ++ return snprintf(buff, len, "followover"); + default: + return snprintf(buff, len, "%i", conf->pgfailback); + } +Index: multipath-tools-120518/libmultipath/print.c +=================================================================== +--- multipath-tools-120518.orig/libmultipath/print.c ++++ multipath-tools-120518/libmultipath/print.c +@@ -143,6 +143,8 @@ snprint_failback (char * buff, size_t le + { + if (mpp->pgfailback == -FAILBACK_IMMEDIATE) + return snprintf(buff, len, "immediate"); ++ if (mpp->pgfailback == -FAILBACK_FOLLOWOVER) ++ return snprintf(buff, len, "followover"); + + if (!mpp->failback_tick) + return snprintf(buff, len, "-"); +Index: multipath-tools-120518/libmultipath/structs.h +=================================================================== +--- multipath-tools-120518.orig/libmultipath/structs.h ++++ multipath-tools-120518/libmultipath/structs.h +@@ -39,7 +39,8 @@ enum rr_weight_mode { + enum failback_mode { + FAILBACK_UNDEF, + FAILBACK_MANUAL, +- FAILBACK_IMMEDIATE ++ FAILBACK_IMMEDIATE, ++ FAILBACK_FOLLOWOVER + }; + + enum sysfs_buses { +@@ -151,6 +152,7 @@ struct path { + int offline; + int state; + int dmstate; ++ int chkrstate; + int failcount; + int priority; + int pgindex; +Index: multipath-tools-120518/multipathd/main.c +=================================================================== +--- multipath-tools-120518.orig/multipathd/main.c ++++ multipath-tools-120518/multipathd/main.c +@@ -995,6 +995,32 @@ mpvec_garbage_collector (struct vectors + } + } + ++/* This is called after a path has started working again. It the multipath ++ * device for this path uses the followover failback type, and this is the ++ * best pathgroup, and this is the first path in the pathgroup to come back ++ * up, then switch to this pathgroup */ ++static int ++followover_should_failback(struct path * pp) ++{ ++ struct pathgroup * pgp; ++ struct path *pp1; ++ int i; ++ ++ if (pp->mpp->pgfailback != -FAILBACK_FOLLOWOVER || ++ !pp->mpp->pg || !pp->pgindex || ++ pp->pgindex != pp->mpp->bestpg) ++ return 0; ++ ++ pgp = VECTOR_SLOT(pp->mpp->pg, pp->pgindex - 1); ++ vector_foreach_slot(pgp->paths, pp1, i) { ++ if (pp1 == pp) ++ continue; ++ if (pp1->chkrstate != PATH_DOWN && pp1->chkrstate != PATH_SHAKY) ++ return 0; ++ } ++ return 1; ++} ++ + static void + defered_failback_tick (vector mpvec) + { +@@ -1092,6 +1118,8 @@ check_path (struct vectors * vecs, struc + { + int newstate; + int new_path_up = 0; ++ int chkr_new_path_up = 0; ++ int oldchkrstate = pp->chkrstate; + + if (!pp->mpp) + return; +@@ -1130,6 +1158,7 @@ check_path (struct vectors * vecs, struc + pp->dev); + pp->dmstate = PSTATE_UNDEF; + } ++ pp->chkrstate = newstate; + if (newstate != pp->state) { + int oldstate = pp->state; + pp->state = newstate; +@@ -1182,6 +1211,9 @@ check_path (struct vectors * vecs, struc + + new_path_up = 1; + ++ if (oldchkrstate != PATH_UP && oldchkrstate != PATH_GHOST) ++ chkr_new_path_up = 1; ++ + /* + * if at least one path is up in a group, and + * the group is disabled, re-enable it +@@ -1233,7 +1265,8 @@ check_path (struct vectors * vecs, struc + (new_path_up || pp->mpp->failback_tick <= 0)) + pp->mpp->failback_tick = + pp->mpp->pgfailback + 1; +- else if (pp->mpp->pgfailback == -FAILBACK_IMMEDIATE) ++ else if (pp->mpp->pgfailback == -FAILBACK_IMMEDIATE || ++ (chkr_new_path_up && followover_should_failback(pp))) + switch_pathgroup(pp->mpp); + } + } +Index: multipath-tools-120518/multipath/multipath.conf.5 +=================================================================== +--- multipath-tools-120518.orig/multipath/multipath.conf.5 ++++ multipath-tools-120518/multipath/multipath.conf.5 +@@ -254,6 +254,11 @@ active paths. + .B manual + Do not perform automatic failback. + .TP ++.B followover ++Only perform automatic failback when the first path of a pathgroup ++becomes active. This keeps a node from automatically failing back when ++another node requested the failover. ++.TP + .B values > 0 + deferred failback (time to defer in seconds) + .TP +Index: multipath-tools-120518/libmultipath/discovery.c +=================================================================== +--- multipath-tools-120518.orig/libmultipath/discovery.c ++++ multipath-tools-120518/libmultipath/discovery.c +@@ -878,13 +878,13 @@ pathinfo (struct path *pp, vector hwtabl + + if (mask & DI_CHECKER) { + if (path_state == PATH_UP) { +- pp->state = get_state(pp, 0); ++ pp->chkrstate = pp->state = get_state(pp, 0); + if (pp->state == PATH_UNCHECKED || + pp->state == PATH_WILD) + goto blank; + } else { + condlog(3, "%s: path inaccessible", pp->dev); +- pp->state = path_state; ++ pp->chkrstate = pp->state = path_state; + } + } + +@@ -912,7 +912,7 @@ blank: + * Recoverable error, for example faulty or offline path + */ + memset(pp->wwid, 0, WWID_SIZE); +- pp->state = PATH_DOWN; ++ pp->chkrstate = pp->state = PATH_DOWN; + + return 0; + } +Index: multipath-tools-120518/multipath/main.c +=================================================================== +--- multipath-tools-120518.orig/multipath/main.c ++++ multipath-tools-120518/multipath/main.c +@@ -144,7 +144,7 @@ update_paths (struct multipath * mpp) + /* + * path is not in sysfs anymore + */ +- pp->state = PATH_DOWN; ++ pp->chkrstate = pp->state = PATH_DOWN; + continue; + } + pp->mpp = mpp; diff --git a/multipath-tools/patches/0003-RH-root-init-script.patch b/multipath-tools/patches/0003-RH-root-init-script.patch deleted file mode 100644 index c687537..0000000 --- a/multipath-tools/patches/0003-RH-root-init-script.patch +++ /dev/null @@ -1,84 +0,0 @@ -From e6a23cc9de85a66d774567515592bdbdba7b2ca4 Mon Sep 17 00:00:00 2001 -From: Fabio M. Di Nitto <fdinitto(a)redhat.com> -Date: Tue, 13 Oct 2009 08:19:01 +0200 -Subject: [PATCH 03/12] RH: root init script - -Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com> ---- -:100644 100644 ee776f0... e46b1b8... M multipathd/multipathd.init.redhat - multipathd/multipathd.init.redhat | 38 ++++++++++++++++++++++++++++++++++++- - 1 files changed, 37 insertions(+), 1 deletions(-) - -diff --git a/multipathd/multipathd.init.redhat b/multipathd/multipathd.init.redhat -index ee776f0..e46b1b8 100644 ---- a/multipathd/multipathd.init.redhat -+++ b/multipathd/multipathd.init.redhat -@@ -2,7 +2,7 @@ - # - # multipathd Starts the multipath daemon - # --# chkconfig: - 13 87 -+# chkconfig: - 06 87 - # description: Manages device-mapper multipath devices - - ### BEGIN INIT INFO -@@ -17,6 +17,7 @@ prog=`basename $DAEMON` - initdir=/etc/rc.d/init.d - lockdir=/var/lock/subsys - sysconfig=/etc/sysconfig -+syspath=/sys/block - - - . $initdir/functions -@@ -25,6 +26,36 @@ test -r $sysconfig/$prog && . $sysconfig/$prog - - RETVAL=0 - -+teardown_slaves() -+{ -+pushd $1 > /dev/null -+if [ -d "slaves" ]; then -+for slave in slaves/*; -+do -+ if [ "$slave" = "slaves/*" ]; then -+ read dev < $1/dev -+ tablename=`dmsetup table --target multipath | sed -n "s/$.*$: .* $dev .*/\1/p"` -+ if ! [ -z $tablename ]; then -+ echo "Root is on a multipathed device, multipathd can not be stopped" -+ exit 1 -+ fi -+ else -+ local_slave=`readlink -f $slave`; -+ teardown_slaves $local_slave; -+ fi -+ done -+ -+else -+ read dev < $1/dev -+ tablename=`dmsetup table --target multipath | sed -n "s/$.*$: .* $dev .*/\1/p"` -+ if ! [ -z $tablename ]; then -+ echo "Root is on a multipathed device, multipathd can not be stopped" -+ exit 1 -+ fi -+fi -+popd > /dev/null -+} -+ - # - # See how we were called. - # -@@ -39,6 +70,11 @@ start() { - } - - stop() { -+ root_dev=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $1; }}' /etc/mtab) -+ dm_num=`dmsetup info -c --noheadings -o minor $root_dev` -+ root_dm_device="dm-$dm_num" -+ [ -d $syspath/$root_dm_device ] && teardown_slaves $syspath/$root_dm_device -+ - echo -n $"Stopping $prog daemon: " - killproc $DAEMON - RETVAL=$? --- -1.6.5.1 - diff --git a/multipath-tools/patches/0003-for-upstream-default-configs.patch b/multipath-tools/patches/0003-for-upstream-default-configs.patch deleted file mode 100644 index fdd6347..0000000 --- a/multipath-tools/patches/0003-for-upstream-default-configs.patch +++ /dev/null @@ -1,56 +0,0 @@ -Index: multipath-tools/libmultipath/hwtable.c -=================================================================== ---- multipath-tools.orig/libmultipath/hwtable.c -+++ multipath-tools/libmultipath/hwtable.c -@@ -425,6 +425,21 @@ static struct hwentry default_hw[] = { - .prio_name = PRIO_RDAC, - }, - { -+ .vendor = "IBM", -+ .product = "1745|1746", -+ .getuid = DEFAULT_GETUID, -+ .features = "2 pg_init_retries 50", -+ .hwhandler = "1 rdac", -+ .selector = DEFAULT_SELECTOR, -+ .pgpolicy = GROUP_BY_PRIO, -+ .pgfailback = -FAILBACK_IMMEDIATE, -+ .rr_weight = RR_WEIGHT_NONE, -+ .no_path_retry = 15, -+ .minio = DEFAULT_MINIO, -+ .checker_name = RDAC, -+ .prio_name = PRIO_RDAC, -+ }, -+ { - /* IBM DS4700 */ - .vendor = "IBM", - .product = "1814", -@@ -661,12 +676,13 @@ static struct hwentry default_hw[] = { - .vendor = "DELL", - .product = "MD3000", - .getuid = DEFAULT_GETUID, -- .features = "1 queue_if_no_path", -+ .features = "2 pg_init_retries 50", - .hwhandler = "1 rdac", - .selector = DEFAULT_SELECTOR, - .pgpolicy = GROUP_BY_PRIO, - .pgfailback = -FAILBACK_IMMEDIATE, - .rr_weight = RR_WEIGHT_NONE, -+ .no_path_retry = 15, - .minio = DEFAULT_MINIO, - .checker_name = RDAC, - .prio_name = PRIO_RDAC, -@@ -676,12 +692,13 @@ static struct hwentry default_hw[] = { - .vendor = "DELL", - .product = "MD3000i", - .getuid = DEFAULT_GETUID, -- .features = "1 queue_if_no_path", -+ .features = "2 pg_init_retries 50", - .hwhandler = "1 rdac", - .selector = DEFAULT_SELECTOR, - .pgpolicy = GROUP_BY_PRIO, - .pgfailback = -FAILBACK_IMMEDIATE, - .rr_weight = RR_WEIGHT_NONE, -+ .no_path_retry = 15, - .minio = DEFAULT_MINIO, - .checker_name = RDAC, - .prio_name = PRIO_RDAC, diff --git a/multipath-tools/patches/0004-RH-fix-cciss-names.patch b/multipath-tools/patches/0004-RH-fix-cciss-names.patch new file mode 100644 index 0000000..890a483 --- /dev/null +++ b/multipath-tools/patches/0004-RH-fix-cciss-names.patch @@ -0,0 +1,34 @@ +--- + multipath/main.c | 12 ++++++++++++ + 1 file changed, 12 insertions(+) + +Index: multipath-tools-120518/multipath/main.c +=================================================================== +--- multipath-tools-120518.orig/multipath/main.c ++++ multipath-tools-120518/multipath/main.c +@@ -409,6 +409,16 @@ get_dev_type(char *dev) { + return DEV_DEVMAP; + } + ++static void ++convert_dev(char *dev) ++{ ++ char *ptr = strstr(dev, "cciss/"); ++ if (ptr) { ++ ptr += 5; ++ *ptr = '!'; ++ } ++} ++ + int + main (int argc, char *argv[]) + { +@@ -514,6 +524,8 @@ main (int argc, char *argv[]) + + strncpy(conf->dev, argv[optind], FILE_NAME_SIZE); + conf->dev_type = get_dev_type(conf->dev); ++ if (conf->dev_type == DEV_DEVNODE) ++ convert_dev(conf->dev); + } + conf->daemon = 0; + diff --git a/multipath-tools/patches/0004-RH-fix-kpartx.patch b/multipath-tools/patches/0004-RH-fix-kpartx.patch deleted file mode 100644 index a28294d..0000000 --- a/multipath-tools/patches/0004-RH-fix-kpartx.patch +++ /dev/null @@ -1,48 +0,0 @@ -From 8d443fe2c58e22166426438e6f6d5757934f7b31 Mon Sep 17 00:00:00 2001 -From: Fabio M. Di Nitto <fdinitto(a)redhat.com> -Date: Tue, 13 Oct 2009 08:23:42 +0200 -Subject: [PATCH 04/12] RH: fix kpartx - -Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com> ---- -:100644 100644 b61a81f... 103ed0a... M kpartx/kpartx.c - kpartx/kpartx.c | 6 ++++-- - 1 files changed, 4 insertions(+), 2 deletions(-) - -diff --git a/kpartx/kpartx.c b/kpartx/kpartx.c -index b61a81f..103ed0a 100644 ---- a/kpartx/kpartx.c -+++ b/kpartx/kpartx.c -@@ -488,6 +488,7 @@ main(int argc, char **argv){ - d = c; - while (c) { - for (j = 0; j < n; j++) { -+ uint64_t start; - int k = slices[j].container - 1; - - if (slices[j].size == 0) -@@ -498,7 +499,7 @@ main(int argc, char **argv){ - continue; - - /* Skip all simple slices */ -- if (k < 0) -+ if (slices[j].container == 0) - continue; - - /* Check container slice */ -@@ -513,10 +514,11 @@ main(int argc, char **argv){ - } - strip_slash(partname); - -+ start = slices[j].start - slices[k].start; - if (safe_sprintf(params, "%d:%d %" PRIu64, - slices[k].major, - slices[k].minor, -- slices[j].start)) { -+ start)) { - fprintf(stderr, "params too small\n"); - exit(1); - } --- -1.6.5.1 - diff --git a/multipath-tools/patches/0005-RH-cciss_id.patch b/multipath-tools/patches/0005-RH-cciss_id.patch deleted file mode 100644 index bf61664..0000000 --- a/multipath-tools/patches/0005-RH-cciss_id.patch +++ /dev/null @@ -1,219 +0,0 @@ -From a3db7def912c2fd3756cfd99c1165db075281caa Mon Sep 17 00:00:00 2001 -From: Fabio M. Di Nitto <fdinitto(a)redhat.com> -Date: Tue, 13 Oct 2009 09:26:02 +0200 -Subject: [PATCH 05/12] RH: cciss_id - -Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com> ---- -:100644 100644 54be0a5... 7e4b7b1... M Makefile -:000000 100644 0000000... 6db12a4... A cciss_id/Makefile -:000000 100644 0000000... 091b5fe... A cciss_id/cciss_id.c - Makefile | 3 +- - cciss_id/Makefile | 47 +++++++++++++++++++ - cciss_id/cciss_id.c | 128 +++++++++++++++++++++++++++++++++++++++++++++++++++ - 3 files changed, 177 insertions(+), 1 deletions(-) - -diff --git a/Makefile b/Makefile -index 54be0a5..7e4b7b1 100644 ---- a/Makefile -+++ b/Makefile -@@ -25,7 +25,8 @@ BUILDDIRS = \ - libmultipath/checkers \ - multipath \ - multipathd \ -- kpartx -+ kpartx \ -+ cciss_id - - ifeq ($(MULTIPATH_VERSION),) - VERSION = $(shell basename ${PWD} | cut -d'-' -f3) -diff --git a/cciss_id/Makefile b/cciss_id/Makefile -new file mode 100644 -index 0000000..6db12a4 ---- /dev/null -+++ b/cciss_id/Makefile -@@ -0,0 +1,47 @@ -+ -+# ***************************************************************************** -+# * * -+# * (C) Copyright 2007 Hewlett-Packard Development Company, L.P * -+# * * -+# * This program is free software; you can redistribute it and/or modify it * -+# * under the terms of the GNU General Public License as published by the Free* -+# * Software Foundation; either version 2 of the License, or (at your option)* -+# * any later version. * -+# * * -+# * This program is distributed in the hope that it will be useful, but * -+# * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY* -+# * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * -+# * for more details. * -+# * * -+# * You should have received a copy of the GNU General Public License along * -+# * with this program; if not, write to the Free Software Foundation, Inc., * -+# * 675 Mass Ave, Cambridge, MA 02139, USA. * -+# * * -+# * * -+# * * -+# * * -+# ***************************************************************************** -+ -+include ../Makefile.inc -+ -+OBJS = cciss_id.o -+CFLAGS = -pipe -g -Wall -Wunused -Wstrict-prototypes -+ -+LDFLAGS = -ldevmapper -+ -+EXEC = cciss_id -+ -+all: $(EXEC) -+ -+$(EXEC): $(OBJS) -+ $(CC) $(OBJS) -o $(EXEC) $(LDFLAGS) -+ -+install: -+ $(INSTALL_PROGRAM) -d $(DESTDIR)$(bindir) -+ $(INSTALL_PROGRAM) -m 755 $(EXEC) $(DESTDIR)$(bindir)/ -+ -+uninstall: -+ rm $(DESTDIR)$(bindir)/$(EXEC) -+ -+clean: -+ rm -f core.* *.o $(EXEC) *.gz -diff --git a/cciss_id/cciss_id.c b/cciss_id/cciss_id.c -new file mode 100644 -index 0000000..091b5fe ---- /dev/null -+++ b/cciss_id/cciss_id.c -@@ -0,0 +1,128 @@ -+/* -+ ***************************************************************************** -+ * * -+ * (C) Copyright 2007 Hewlett-Packard Development Company, L.P * -+ * * -+ * This program is free software; you can redistribute it and/or modify it * -+ * under the terms of the GNU General Public License as published by the Free* -+ * Software Foundation; either version 2 of the License, or (at your option)* -+ * any later version. * -+ * * -+ * This program is distributed in the hope that it will be useful, but * -+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY* -+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * -+ * for more details. * -+ * * -+ * You should have received a copy of the GNU General Public License along * -+ * with this program; if not, write to the Free Software Foundation, Inc., * -+ * 675 Mass Ave, Cambridge, MA 02139, USA. * -+ * * -+ * * -+ * * -+ * * -+ ***************************************************************************** -+*/ -+ -+#include <sys/types.h> -+#include <sys/stat.h> -+#include <sys/ioctl.h> -+#include <fcntl.h> -+#include <unistd.h> -+#include <stdio.h> -+#include <stdlib.h> -+#include <errno.h> -+#include <string.h> -+ -+#include <linux/cciss_ioctl.h> -+ -+#define LEN_PAGE83_CCISSDEV 0x20 /* Page length of 83h for cciss devices */ -+#define LEN_DEVICEFILE 255 /* Length of device file name */ -+#define PATH_CCISSDEV "/dev/cciss/" /* Path of CCISS devices */ -+int main(int argc, char *argv[]) -+{ -+ const int resp_len = LEN_PAGE83_CCISSDEV; -+ unsigned char resp[resp_len+1]; -+ char dev_name[LEN_DEVICEFILE] = "\0" ; -+ unsigned int lun_id = 0; -+ int fd, status, i; -+ struct stat file_stat; -+ -+ LogvolInfo_struct lvi; // logical "volume" info -+ IOCTL_Command_struct cic; // cciss ioctl command -+ -+ if(argc < 2) { -+ fprintf(stderr, "Usage: %s /dev/cciss/cNdN\n", argv[0]); -+ return -1; -+ } -+ -+ if ( strncmp(PATH_CCISSDEV, argv[1], strlen(PATH_CCISSDEV) ) != 0 ) { -+ if ( strchr(argv[1], '!') ) { -+ sprintf(dev_name, "%s%s", PATH_CCISSDEV, -+ strchr(argv[1], '!')+1); -+ } -+ //fprintf(stderr, "dev_name is: -%s-", dev_name); -+ } else { -+ sprintf(dev_name, "%s", argv[1]); -+ } -+ -+ if (stat(dev_name, &file_stat) < 0) { -+ fprintf (stderr, "Stat failed for file %s. Errno=%d\n", dev_name, errno); -+ return -1; -+ } -+ if (!S_ISBLK(file_stat.st_mode)) { -+ fprintf (stderr, "File %s is not a block device. \n", dev_name); -+ return -1; -+ } -+ -+ -+ if((fd = open(dev_name, O_RDWR)) < 0) { -+ fprintf(stderr, "Open failed for file %s. Errno=%d\n", dev_name, errno); -+ return -1; -+ } -+ -+ if (ioctl(fd, CCISS_GETLUNINFO, &lvi) < 0) { -+ fprintf(stderr, "IOCTL failure CCISS_GETLUNINFO for file %s Errno=%d\n", dev_name, errno); -+ close(fd); -+ return -1; -+ } else { -+ lun_id = lvi.LunID; -+ } -+ -+ memset(&cic, 0, sizeof(IOCTL_Command_struct)); -+ memset(resp, 0, resp_len+1); -+ cic.LUN_info.LogDev.Mode = 0x01; /* logical volume addressing */ -+ cic.LUN_info.LogDev.VolId = lun_id & 0x3FFFFFFF; -+ cic.Request.CDBLen = 6; -+ cic.Request.Type.Type = TYPE_CMD; // It is a command. -+ cic.Request.Type.Attribute = ATTR_SIMPLE; -+ cic.Request.Type.Direction = XFER_READ; // Read -+ cic.Request.Timeout = 0; // Don't time out -+ cic.Request.CDB[0] = 0x12; -+ cic.Request.CDB[1] = 0x01; /* EVPD (enable vital product data) */ -+ cic.Request.CDB[2] = 0x83; -+ cic.Request.CDB[4] = resp_len & 0xFF; -+ cic.buf_size = resp_len; -+ cic.buf = resp; -+ status = ioctl(fd, CCISS_PASSTHRU, &cic); -+ if(status) { -+ fprintf(stderr, "IOCTL failure CCISS_PASSTHRU for file %s Errno=%d\n", dev_name, errno); -+ close(fd); -+ return -1; -+ } -+ else { -+ if ((cic.error_info.CommandStatus | cic.error_info.ScsiStatus )) { -+ fprintf(stderr, "CCISS command status error for Inquiry on %s\n", -+ dev_name); -+ close(fd); -+ return -1; -+ } -+ printf("3"); -+ for(i=8; i<24; i++) -+ /* printf("Buff[%d] =%x\n", i, resp[i]); */ -+ printf("%02x", resp[i]); -+ printf("\n"); -+ } -+ -+ close(fd); -+ return 0; -+} --- -1.6.5.1 - diff --git a/multipath-tools/patches/0005-RH-dont_start_with_no_config.patch b/multipath-tools/patches/0005-RH-dont_start_with_no_config.patch new file mode 100644 index 0000000..7efd925 --- /dev/null +++ b/multipath-tools/patches/0005-RH-dont_start_with_no_config.patch @@ -0,0 +1,16 @@ +--- + multipathd/multipathd.service | 1 + + 1 file changed, 1 insertion(+) + +Index: multipath-tools-110916/multipathd/multipathd.service +=================================================================== +--- multipath-tools-110916.orig/multipathd/multipathd.service ++++ multipath-tools-110916/multipathd/multipathd.service +@@ -2,6 +2,7 @@ + Description=Device-Mapper Multipath Device Controller + Before=iscsi.service iscsid.service + After=syslog.target ++ConditionPathExists=/etc/multipath.conf + + [Service] + Type=forking diff --git a/multipath-tools/patches/0006-RH-move-bindings.patch b/multipath-tools/patches/0006-RH-move-bindings.patch deleted file mode 100644 index c26b5e8..0000000 --- a/multipath-tools/patches/0006-RH-move-bindings.patch +++ /dev/null @@ -1,56 +0,0 @@ -From ff4c0c9ccbf8abe4a67c2a6cceef07bda9d38d7d Mon Sep 17 00:00:00 2001 -From: Fabio M. Di Nitto <fdinitto(a)redhat.com> -Date: Tue, 13 Oct 2009 09:26:25 +0200 -Subject: [PATCH 06/12] RH: move bindings - -Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com> ---- -:100644 100644 84e5d6b... 5a38d25... M libmultipath/defaults.h -:100644 100644 9afa615... 7b6453f... M multipath.conf.annotated -:100644 100644 a165e4e... 4340e51... M multipath/multipath.conf.5 - libmultipath/defaults.h | 2 +- - multipath.conf.annotated | 2 +- - multipath/multipath.conf.5 | 2 +- - 3 files changed, 3 insertions(+), 3 deletions(-) - -diff --git a/libmultipath/defaults.h b/libmultipath/defaults.h -index 84e5d6b..5a38d25 100644 ---- a/libmultipath/defaults.h -+++ b/libmultipath/defaults.h -@@ -19,6 +19,6 @@ - #define DEFAULT_PIDFILE "/var/run/multipathd.pid" - #define DEFAULT_SOCKET "/var/run/multipathd.sock" - #define DEFAULT_CONFIGFILE "/etc/multipath.conf" --#define DEFAULT_BINDINGS_FILE "/var/lib/multipath/bindings" -+#define DEFAULT_BINDINGS_FILE "/etc/multipath/bindings" - - char * set_default (char * str); -diff --git a/multipath.conf.annotated b/multipath.conf.annotated -index 9afa615..7b6453f 100644 ---- a/multipath.conf.annotated -+++ b/multipath.conf.annotated -@@ -165,7 +165,7 @@ - # # name : user_friendly_names - # # scope : multipath - # # desc : If set to "yes", using the bindings file --# # /var/lib/multipath/bindings to assign a persistent and -+# # /etc/multipath/bindings to assign a persistent and - # # unique alias to the multipath, in the form of mpath<n>. - # # If set to "no" use the WWID as the alias. In either case - # # this be will be overriden by any specific aliases in this -diff --git a/multipath/multipath.conf.5 b/multipath/multipath.conf.5 -index a165e4e..4340e51 100644 ---- a/multipath/multipath.conf.5 -+++ b/multipath/multipath.conf.5 -@@ -224,7 +224,7 @@ for never stop queueing. Default is 0. - If set to - .I yes - , using the bindings file --.I /var/lib/multipath/bindings -+.I /etc/multipath/bindings - to assign a persistent and unique alias to the multipath, in the form of mpath<n>. - If set to - .I no --- -1.6.5.1 - diff --git a/multipath-tools/patches/0006-RH-multipath.rules.patch b/multipath-tools/patches/0006-RH-multipath.rules.patch new file mode 100644 index 0000000..bfcfc98 --- /dev/null +++ b/multipath-tools/patches/0006-RH-multipath.rules.patch @@ -0,0 +1,64 @@ +--- + multipath/Makefile | 6 +++--- + multipath/multipath.rules | 30 ++++++++++++++++++++++++------ + 2 files changed, 27 insertions(+), 9 deletions(-) + +Index: multipath-tools-120613/multipath/multipath.rules +=================================================================== +--- multipath-tools-120613.orig/multipath/multipath.rules ++++ multipath-tools-120613/multipath/multipath.rules +@@ -1,7 +1,25 @@ +-# +-# udev rules for multipathing. +-# The persistent symlinks are created with the kpartx rules +-# ++# multipath wants the devmaps presented as meaninglful device names ++# so name them after their devmap name ++SUBSYSTEM!="block", GOTO="end_mpath" + +-# socket for uevents +-SUBSYSTEM=="block", RUN+="socket:/org/kernel/dm/multipath_event" ++ENV{MPATH_SBIN_PATH}="/sbin" ++TEST!="$env{MPATH_SBIN_PATH}/multipath", ENV{MPATH_SBIN_PATH}="/usr/sbin" ++ ++ACTION=="add", ENV{DEVTYPE}!="partition", \ ++ ENV{DM_MULTIPATH_DEVICE_PATH}!="1", \ ++ TEST=="/etc/multipath.conf", \ ++ PROGRAM=="$env{MPATH_SBIN_PATH}/multipath -c $tempnode", \ ++ ENV{DM_MULTIPATH_DEVICE_PATH}="1" ++ ++ENV{DM_MULTIPATH_DEVICE_PATH}=="1", ENV{DEVTYPE}!="partition", \ ++ RUN+="/sbin/partx -d --nr 1-1024 $env{DEVNAME}" ++ ++RUN+="socket:/org/kernel/dm/multipath_event" ++KERNEL!="dm-*", GOTO="end_mpath" ++ACTION!="change", GOTO="end_mpath" ++ENV{DM_UUID}=="mpath-?*|part[0-9]*-mpath-?*", OPTIONS+="link_priority=10" ++ENV{DM_UUID}!="mpath-?*", GOTO="end_mpath" ++ENV{DM_SUSPENDED}=="1", GOTO="end_mpath" ++ENV{DM_ACTION}=="PATH_FAILED", GOTO="end_mpath" ++RUN+="$env{MPATH_SBIN_PATH}/kpartx -a -p p $tempnode" ++LABEL="end_mpath" +Index: multipath-tools-120613/multipath/Makefile +=================================================================== +--- multipath-tools-120613.orig/multipath/Makefile ++++ multipath-tools-120613/multipath/Makefile +@@ -21,15 +21,15 @@ $(EXEC): $(OBJS) + install: + $(INSTALL_PROGRAM) -d $(DESTDIR)$(bindir) + $(INSTALL_PROGRAM) -m 755 $(EXEC) $(DESTDIR)$(bindir)/ +- $(INSTALL_PROGRAM) -d $(DESTDIR)/etc/udev/rules.d +- $(INSTALL_PROGRAM) -m 644 multipath.rules $(DESTDIR)/etc/udev/rules.d/ ++ $(INSTALL_PROGRAM) -d $(DESTDIR)/lib/udev/rules.d ++ $(INSTALL_PROGRAM) -m 644 multipath.rules $(DESTDIR)/lib/udev/rules.d/62-multipath.rules + $(INSTALL_PROGRAM) -d $(DESTDIR)$(mandir) + $(INSTALL_PROGRAM) -m 644 $(EXEC).8.gz $(DESTDIR)$(mandir) + $(INSTALL_PROGRAM) -d $(DESTDIR)$(man5dir) + $(INSTALL_PROGRAM) -m 644 $(EXEC).conf.5.gz $(DESTDIR)$(man5dir) + + uninstall: +- rm $(DESTDIR)/etc/udev/rules.d/multipath.rules ++ rm $(DESTDIR)/lib/udev/rules.d/62-multipath.rules + rm $(DESTDIR)$(bindir)/$(EXEC) + rm $(DESTDIR)$(mandir)/$(EXEC).8.gz + rm $(DESTDIR)$(man5dir)/$(EXEC).conf.5.gz diff --git a/multipath-tools/patches/0007-RH-Make-build-system-RH-Fedora-friendly.patch b/multipath-tools/patches/0007-RH-Make-build-system-RH-Fedora-friendly.patch new file mode 100644 index 0000000..bc5d17d --- /dev/null +++ b/multipath-tools/patches/0007-RH-Make-build-system-RH-Fedora-friendly.patch @@ -0,0 +1,101 @@ +From f5e11246063b07d6dce6d37d3b74662475baa981 Mon Sep 17 00:00:00 2001 +From: Fabio M. Di Nitto <fdinitto(a)redhat.com> +Date: Thu, 15 Oct 2009 04:39:27 +0200 +Subject: [PATCH 08/12] RH: Make build system RH/Fedora friendly + +Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com> +--- +:100644 100644 7ec25d5... 06fb625... M Makefile.inc +:100644 100644 21e4ad4... 06d79c0... M kpartx/Makefile +:100644 100644 32d9ef5... 25e1483... M multipathd/Makefile + Makefile.inc | 2 +- + kpartx/Makefile | 8 ++++---- + libmpathpersist/Makefile | 7 ++----- + libmultipath/Makefile | 2 ++ + multipathd/Makefile | 1 + + 5 files changed, 10 insertions(+), 10 deletions(-) + +Index: multipath-tools-120613/Makefile.inc +=================================================================== +--- multipath-tools-120613.orig/Makefile.inc ++++ multipath-tools-120613/Makefile.inc +@@ -29,7 +29,7 @@ multipathdir = $(TOPDIR)/libmultipath + mandir = $(prefix)/usr/share/man/man8 + man5dir = $(prefix)/usr/share/man/man5 + man3dir = $(prefix)/usr/share/man/man3 +-rcdir = $(prefix)/etc/init.d ++rcdir = $(prefix)/etc/rc.d/init.d + syslibdir = $(prefix)/$(LIB) + libdir = $(prefix)/$(LIB)/multipath + unitdir = $(prefix)/lib/systemd/system +Index: multipath-tools-120613/kpartx/Makefile +=================================================================== +--- multipath-tools-120613.orig/kpartx/Makefile ++++ multipath-tools-120613/kpartx/Makefile +@@ -26,10 +26,10 @@ $(EXEC): $(OBJS) + install: $(EXEC) $(EXEC).8 + $(INSTALL_PROGRAM) -d $(DESTDIR)$(bindir) + $(INSTALL_PROGRAM) -m 755 $(EXEC) $(DESTDIR)$(bindir) +- $(INSTALL_PROGRAM) -d $(DESTDIR)$(libudevdir) +- $(INSTALL_PROGRAM) -m 755 kpartx_id $(DESTDIR)$(libudevdir) +- $(INSTALL_PROGRAM) -d $(DESTDIR)/etc/udev/rules.d +- $(INSTALL_PROGRAM) -m 644 kpartx.rules $(DESTDIR)/etc/udev/rules.d/ ++# $(INSTALL_PROGRAM) -d $(DESTDIR)$(libudevdir) ++# $(INSTALL_PROGRAM) -m 755 kpartx_id $(DESTDIR)$(libudevdir) ++# $(INSTALL_PROGRAM) -d $(DESTDIR)/etc/udev/rules.d ++# $(INSTALL_PROGRAM) -m 644 kpartx.rules $(DESTDIR)/etc/udev/rules.d/ + $(INSTALL_PROGRAM) -d $(DESTDIR)$(mandir) + $(INSTALL_PROGRAM) -m 644 $(EXEC).8.gz $(DESTDIR)$(mandir) + +Index: multipath-tools-120613/multipathd/Makefile +=================================================================== +--- multipath-tools-120613.orig/multipathd/Makefile ++++ multipath-tools-120613/multipathd/Makefile +@@ -35,6 +35,7 @@ install: + $(INSTALL_PROGRAM) -d $(DESTDIR)$(bindir) + $(INSTALL_PROGRAM) -m 755 $(EXEC) $(DESTDIR)$(bindir) + $(INSTALL_PROGRAM) -d $(DESTDIR)$(rcdir) ++ $(INSTALL_PROGRAM) -m 755 multipathd.init.redhat $(DESTDIR)$(rcdir)/$(EXEC) + $(INSTALL_PROGRAM) -d $(DESTDIR)$(unitdir) + $(INSTALL_PROGRAM) -m 644 $(EXEC).service $(DESTDIR)$(unitdir) + $(INSTALL_PROGRAM) -d $(DESTDIR)$(mandir) +Index: multipath-tools-120613/libmultipath/Makefile +=================================================================== +--- multipath-tools-120613.orig/libmultipath/Makefile ++++ multipath-tools-120613/libmultipath/Makefile +@@ -46,9 +46,11 @@ install: + $(INSTALL_PROGRAM) -d $(DESTDIR)$(syslibdir) + $(INSTALL_PROGRAM) -m 755 $(LIBS) $(DESTDIR)$(syslibdir)/$(LIBS) + $(INSTALL_PROGRAM) -m 755 -d $(DESTDIR)$(libdir) ++ ln -sf $(LIBS) $(DESTDIR)$(syslibdir)/$(DEVLIB) + + uninstall: + rm -f $(DESTDIR)$(syslibdir)/$(LIBS) ++ rm -f $(DESTDIR)$(syslibdir)/$(DEVLIB) + + clean: + rm -f core *.a *.o *.gz *.so *.so.* +Index: multipath-tools-120613/libmpathpersist/Makefile +=================================================================== +--- multipath-tools-120613.orig/libmpathpersist/Makefile ++++ multipath-tools-120613/libmpathpersist/Makefile +@@ -28,17 +28,14 @@ $(LIBS): + install: $(LIBS) + $(INSTALL_PROGRAM) -d $(DESTDIR)$(syslibdir) + $(INSTALL_PROGRAM) -m 755 $(LIBS) $(DESTDIR)$(syslibdir)/$(LIBS) +- $(INSTALL_PROGRAM) -m 755 -d $(DESTDIR)$(syslibdir) + $(INSTALL_PROGRAM) -m 755 -d $(DESTDIR)$(man3dir) +- $(INSTALL_PROGRAM) -m 755 -d $(DESTDIR)/usr/include/ +- $(INSTALL_PROGRAM) -m 755 -d $(DESTDIR)/usr/share/doc/mpathpersist/ +- ln -sf $(DESTDIR)$(syslibdir)/$(LIBS) $(DESTDIR)$(syslibdir)/$(DEVLIB) ++ ln -sf $(LIBS) $(DESTDIR)$(syslibdir)/$(DEVLIB) + install -m 644 mpath_persistent_reserve_in.3.gz $(DESTDIR)$(man3dir) + install -m 644 mpath_persistent_reserve_out.3.gz $(DESTDIR)$(man3dir) +- install -m 644 mpath_persist.h $(DESTDIR)/usr/include/ + + uninstall: + rm -f $(DESTDIR)$(syslibdir)/$(LIBS) ++ rm -f $(DESTDIR)$(syslibdir)/$(DEVLIB) + rm $(DESTDIR)$(mandir)/mpath_persistent_reserve_in.3.gz + rm $(DESTDIR)$(mandir)/mpath_persistent_reserve_out.3.gz + diff --git a/multipath-tools/patches/0007-RH-do-not-remove.patch b/multipath-tools/patches/0007-RH-do-not-remove.patch deleted file mode 100644 index 1b27c76..0000000 --- a/multipath-tools/patches/0007-RH-do-not-remove.patch +++ /dev/null @@ -1,39 +0,0 @@ -From b3519ef2eda768672d47c61f0acf8c87d74db427 Mon Sep 17 00:00:00 2001 -From: Fabio M. Di Nitto <fdinitto(a)redhat.com> -Date: Tue, 13 Oct 2009 09:33:59 +0200 -Subject: [PATCH 07/12] RH: do not remove - -Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com> ---- -:100644 100644 5d3625a... 244b8d5... M multipathd/main.c - multipathd/main.c | 13 ++++++++++++- - 1 files changed, 12 insertions(+), 1 deletions(-) - -diff --git a/multipathd/main.c b/multipathd/main.c -index 5d3625a..244b8d5 100644 ---- a/multipathd/main.c -+++ b/multipathd/main.c -@@ -290,8 +290,19 @@ ev_add_map (struct sysfs_device * dev, struct vectors * vecs) - static int - uev_remove_map (struct sysfs_device * dev, struct vectors * vecs) - { -+ struct multipath * mpp; -+ - condlog(2, "%s: remove map (uevent)", dev->kernel); -- return ev_remove_map(dev->kernel, vecs); -+ -+ mpp = find_mp_by_str(vecs->mpvec, dev->kernel); -+ if (!mpp) { -+ condlog(2, "%s: devmap not registered, can't remove", -+ dev->kernel); -+ return 0; -+ } -+ orphan_paths(vecs->pathvec, mpp); -+ remove_map_and_stop_waiter(mpp, vecs, 1); -+ return 0; - } - - int --- -1.6.5.1 - diff --git a/multipath-tools/patches/0008-RH-Make-build-system-RH-Fedora-friendly.patch b/multipath-tools/patches/0008-RH-Make-build-system-RH-Fedora-friendly.patch deleted file mode 100644 index 9e6e3a0..0000000 --- a/multipath-tools/patches/0008-RH-Make-build-system-RH-Fedora-friendly.patch +++ /dev/null @@ -1,62 +0,0 @@ -From f5e11246063b07d6dce6d37d3b74662475baa981 Mon Sep 17 00:00:00 2001 -From: Fabio M. Di Nitto <fdinitto(a)redhat.com> -Date: Thu, 15 Oct 2009 04:39:27 +0200 -Subject: [PATCH 08/12] RH: Make build system RH/Fedora friendly - -Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com> ---- -:100644 100644 7ec25d5... 06fb625... M Makefile.inc -:100644 100644 21e4ad4... 06d79c0... M kpartx/Makefile -:100644 100644 32d9ef5... 25e1483... M multipathd/Makefile - Makefile.inc | 2 +- - kpartx/Makefile | 8 ++++---- - multipathd/Makefile | 1 + - 3 files changed, 6 insertions(+), 5 deletions(-) - -diff --git a/Makefile.inc b/Makefile.inc -index 7ec25d5..06fb625 100644 ---- a/Makefile.inc -+++ b/Makefile.inc -@@ -28,7 +28,7 @@ libudevdir = ${prefix}/lib/udev - multipathdir = $(TOPDIR)/libmultipath - mandir = $(prefix)/usr/share/man/man8 - man5dir = $(prefix)/usr/share/man/man5 --rcdir = $(prefix)/etc/init.d -+rcdir = $(prefix)/etc/rc.d/init.d - syslibdir = $(prefix)/$(LIB) - libdir = $(prefix)/$(LIB)/multipath - -diff --git a/kpartx/Makefile b/kpartx/Makefile -index 21e4ad4..06d79c0 100644 ---- a/kpartx/Makefile -+++ b/kpartx/Makefile -@@ -20,10 +20,10 @@ $(EXEC): $(OBJS) - install: $(EXEC) $(EXEC).8 - $(INSTALL_PROGRAM) -d $(DESTDIR)$(bindir) - $(INSTALL_PROGRAM) -m 755 $(EXEC) $(DESTDIR)$(bindir) -- $(INSTALL_PROGRAM) -d $(DESTDIR)$(libudevdir) -- $(INSTALL_PROGRAM) -m 755 kpartx_id $(DESTDIR)$(libudevdir) -- $(INSTALL_PROGRAM) -d $(DESTDIR)/etc/udev/rules.d -- $(INSTALL_PROGRAM) -m 644 kpartx.rules $(DESTDIR)/etc/udev/rules.d/ -+# $(INSTALL_PROGRAM) -d $(DESTDIR)$(libudevdir) -+# $(INSTALL_PROGRAM) -m 755 kpartx_id $(DESTDIR)$(libudevdir) -+# $(INSTALL_PROGRAM) -d $(DESTDIR)/etc/udev/rules.d -+# $(INSTALL_PROGRAM) -m 644 kpartx.rules $(DESTDIR)/etc/udev/rules.d/ - $(INSTALL_PROGRAM) -d $(DESTDIR)$(mandir) - $(INSTALL_PROGRAM) -m 644 $(EXEC).8.gz $(DESTDIR)$(mandir) - -diff --git a/multipathd/Makefile b/multipathd/Makefile -index 32d9ef5..25e1483 100644 ---- a/multipathd/Makefile -+++ b/multipathd/Makefile -@@ -35,6 +35,7 @@ install: - $(INSTALL_PROGRAM) -d $(DESTDIR)$(bindir) - $(INSTALL_PROGRAM) -m 755 $(EXEC) $(DESTDIR)$(bindir) - $(INSTALL_PROGRAM) -d $(DESTDIR)$(rcdir) -+ $(INSTALL_PROGRAM) -m 755 multipathd.init.redhat $(DESTDIR)$(rcdir)/$(EXEC) - $(INSTALL_PROGRAM) -d $(DESTDIR)$(mandir) - $(INSTALL_PROGRAM) -m 644 $(EXEC).8.gz $(DESTDIR)$(mandir) - --- -1.6.5.1 - diff --git a/multipath-tools/patches/0008-RH-multipathd-blacklist-all-by-default.patch b/multipath-tools/patches/0008-RH-multipathd-blacklist-all-by-default.patch new file mode 100644 index 0000000..5bbf3ca --- /dev/null +++ b/multipath-tools/patches/0008-RH-multipathd-blacklist-all-by-default.patch @@ -0,0 +1,64 @@ +From 61b2002c6b2752c15b431e400cd614edc8c5b039 Mon Sep 17 00:00:00 2001 +From: Fabio M. Di Nitto <fdinitto(a)redhat.com> +Date: Mon, 19 Oct 2009 07:05:45 +0200 +Subject: [PATCH 09/12] RH: multipathd blacklist all by default + +If there is no configuration installed on the system, blacklist +everything by default. + +BZ#528059 + +Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com> +--- +:100644 100644 e7e962e... 5aa1ab0... M libmultipath/config.c +:100644 100644 86b1320... 7e90e75... M libmultipath/config.h + libmultipath/config.c | 16 ++++++++++++++++ + libmultipath/config.h | 1 + + 2 files changed, 17 insertions(+) + +Index: multipath-tools-120518/libmultipath/config.c +=================================================================== +--- multipath-tools-120518.orig/libmultipath/config.c ++++ multipath-tools-120518/libmultipath/config.c +@@ -21,6 +21,7 @@ + #include "defaults.h" + #include "prio.h" + #include "devmapper.h" ++#include "version.h" + + static int + hwe_strmatch (struct hwentry *hwe1, struct hwentry *hwe2) +@@ -549,6 +550,21 @@ load_config (char * file) + + } else { + init_keywords(); ++ condlog(0, "/etc/multipath.conf does not exist, blacklisting all devices."); ++ condlog(0, "A default multipath.conf file is located at"); ++ condlog(0, "/usr/share/doc/device-mapper-multipath-%d.%d.%d/multipath.conf", MULTIPATH_VERSION(VERSION_CODE)); ++ if (conf->blist_devnode == NULL) { ++ conf->blist_devnode = vector_alloc(); ++ if (!conf->blist_devnode) { ++ condlog(0, "cannot allocate blacklist\n"); ++ goto out; ++ } ++ } ++ if (store_ble(conf->blist_devnode, strdup(".*"), ++ ORIGIN_NO_CONFIG)) { ++ condlog(0, "cannot store default no-config blacklist\n"); ++ goto out; ++ } + } + + /* +Index: multipath-tools-120518/libmultipath/config.h +=================================================================== +--- multipath-tools-120518.orig/libmultipath/config.h ++++ multipath-tools-120518/libmultipath/config.h +@@ -6,6 +6,7 @@ + + #define ORIGIN_DEFAULT 0 + #define ORIGIN_CONFIG 1 ++#define ORIGIN_NO_CONFIG 2 + + /* + * In kernel, fast_io_fail == 0 means immediate failure on rport delete. diff --git a/multipath-tools/patches/0009-RH-add-mpathconf.patch b/multipath-tools/patches/0009-RH-add-mpathconf.patch new file mode 100644 index 0000000..2a5bec8 --- /dev/null +++ b/multipath-tools/patches/0009-RH-add-mpathconf.patch @@ -0,0 +1,494 @@ +--- + libmultipath/config.c | 1 + multipath/Makefile | 5 + multipath/main.c | 4 + multipath/mpathconf | 312 ++++++++++++++++++++++++++++++++++++++++++++++++++ + multipath/mpathconf.8 | 103 ++++++++++++++++ + 5 files changed, 423 insertions(+), 2 deletions(-) + +Index: multipath-tools-120613/libmultipath/config.c +=================================================================== +--- multipath-tools-120613.orig/libmultipath/config.c ++++ multipath-tools-120613/libmultipath/config.c +@@ -553,6 +553,7 @@ load_config (char * file) + condlog(0, "/etc/multipath.conf does not exist, blacklisting all devices."); + condlog(0, "A default multipath.conf file is located at"); + condlog(0, "/usr/share/doc/device-mapper-multipath-%d.%d.%d/multipath.conf", MULTIPATH_VERSION(VERSION_CODE)); ++ condlog(0, "You can run /sbin/mpathconf to create or modify /etc/multipath.conf"); + if (conf->blist_devnode == NULL) { + conf->blist_devnode = vector_alloc(); + if (!conf->blist_devnode) { +Index: multipath-tools-120613/multipath/Makefile +=================================================================== +--- multipath-tools-120613.orig/multipath/Makefile ++++ multipath-tools-120613/multipath/Makefile +@@ -17,22 +17,27 @@ $(EXEC): $(OBJS) + $(CC) $(CFLAGS) $(OBJS) -o $(EXEC) $(LDFLAGS) + $(GZIP) $(EXEC).8 > $(EXEC).8.gz + $(GZIP) $(EXEC).conf.5 > $(EXEC).conf.5.gz ++ $(GZIP) mpathconf.8 > mpathconf.8.gz + + install: + $(INSTALL_PROGRAM) -d $(DESTDIR)$(bindir) + $(INSTALL_PROGRAM) -m 755 $(EXEC) $(DESTDIR)$(bindir)/ ++ $(INSTALL_PROGRAM) -m 755 mpathconf $(DESTDIR)$(bindir)/ + $(INSTALL_PROGRAM) -d $(DESTDIR)/lib/udev/rules.d + $(INSTALL_PROGRAM) -m 644 multipath.rules $(DESTDIR)/lib/udev/rules.d/62-multipath.rules + $(INSTALL_PROGRAM) -d $(DESTDIR)$(mandir) + $(INSTALL_PROGRAM) -m 644 $(EXEC).8.gz $(DESTDIR)$(mandir) + $(INSTALL_PROGRAM) -d $(DESTDIR)$(man5dir) + $(INSTALL_PROGRAM) -m 644 $(EXEC).conf.5.gz $(DESTDIR)$(man5dir) ++ $(INSTALL_PROGRAM) -m 644 mpathconf.8.gz $(DESTDIR)$(mandir) + + uninstall: + rm $(DESTDIR)/lib/udev/rules.d/62-multipath.rules + rm $(DESTDIR)$(bindir)/$(EXEC) ++ rm $(DESTDIR)$(bindir)/mpathconf + rm $(DESTDIR)$(mandir)/$(EXEC).8.gz + rm $(DESTDIR)$(man5dir)/$(EXEC).conf.5.gz ++ rm $(DESTDIR)$(mandir)/mpathconf.8.gz + + clean: + rm -f core *.o $(EXEC) *.gz +Index: multipath-tools-120613/multipath/main.c +=================================================================== +--- multipath-tools-120613.orig/multipath/main.c ++++ multipath-tools-120613/multipath/main.c +@@ -432,10 +432,10 @@ main (int argc, char *argv[]) + exit(1); + } + +- if (dm_prereq()) ++ if (load_config(DEFAULT_CONFIGFILE)) + exit(1); + +- if (load_config(DEFAULT_CONFIGFILE)) ++ if (dm_prereq()) + exit(1); + + while ((arg = getopt(argc, argv, ":dchl::FfM:v:p:b:Brtq")) != EOF ) { +Index: multipath-tools-120613/multipath/mpathconf +=================================================================== +--- /dev/null ++++ multipath-tools-120613/multipath/mpathconf +@@ -0,0 +1,312 @@ ++#!/bin/sh ++# ++# Copyright (C) 2010 Red Hat, Inc. All rights reserved. ++# ++# This file is part of the device-mapper-multipath package. ++# ++# This copyrighted material is made available to anyone wishing to use, ++# modify, copy, or redistribute it subject to the terms and conditions ++# of the GNU General Public License v.2. ++# ++# You should have received a copy of the GNU General Public License ++# along with this program; if not, write to the Free Software Foundation, ++# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA ++ ++# ++# Simple editting of /etc/multipath.conf ++# This program was largely ripped off from lvmconf ++# ++ ++unset ENABLE FIND FRIENDLY MODULE MULTIPATHD HAVE_DISABLE HAVE_FIND HAVE_BLACKLIST HAVE_DEFAULTS HAVE_FRIENDLY HAVE_MULTIPATHD HAVE_MODULE SHOW_STATUS CHANGED_CONFIG ++ ++DEFAULT_CONFIGFILE="/usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf" ++CONFIGFILE="/etc/multipath.conf" ++MULTIPATHDIR="/etc/multipath" ++TMPFILE=/etc/multipath/.multipath.conf.tmp ++ ++function usage ++{ ++ echo "usage: $0 <command>" ++ echo "" ++ echo "Commands:" ++ echo "Enable: --enable " ++ echo "Disable: --disable" ++ echo "Set user_friendly_names (Default n): --user_friendly_names <y|n>" ++ echo "Set find_multipaths (Default n): --find_multipaths <y|n>" ++ echo "Load the dm-multipath modules on enable (Default y): --with_module <y|n>" ++ echo "start/stop/reload multipathd (Default n): --with_multipathd <y|n>" ++ echo "" ++} ++ ++function parse_args ++{ ++ while [ -n "$1" ]; do ++ case $1 in ++ --enable) ++ ENABLE=1 ++ shift ++ ;; ++ --disable) ++ ENABLE=0 ++ shift ++ ;; ++ --user_friendly_names) ++ if [ -n "$2" ]; then ++ FRIENDLY=$2 ++ shift 2 ++ else ++ usage ++ exit 1 ++ fi ++ ;; ++ --find_multipaths) ++ if [ -n "$2" ]; then ++ FIND=$2 ++ shift 2 ++ else ++ usage ++ exit 1 ++ fi ++ ;; ++ --with_module) ++ if [ -n "$2" ]; then ++ MODULE=$2 ++ shift 2 ++ else ++ usage ++ exit 1 ++ fi ++ ;; ++ --with_multipathd) ++ if [ -n "$2" ]; then ++ MULTIPATHD=$2 ++ shift 2 ++ else ++ usage ++ exit 1 ++ fi ++ ;; ++ *) ++ usage ++ exit ++ esac ++ done ++} ++ ++function validate_args ++{ ++ if [ "$ENABLE" = "0" ] && [ -n "$FRIENDLY" -o -n "$FIND" -o -n "$MODULE" ]; then ++ echo "ignoring extra parameters on disable" ++ FRIENDLY="" ++ FIND="" ++ MODULE="" ++ fi ++ if [ -n "$FRIENDLY" ] && [ "$FRIENDLY" != "y" -a "$FRIENDLY" != "n" ]; then ++ echo "--user_friendly_names must be either 'y' or 'n'" ++ exit 1 ++ fi ++ if [ -n "$FIND" ] && [ "$FIND" != "y" -a "$FIND" != "n" ]; then ++ echo "--find_multipaths must be either 'y' or 'n'" ++ exit 1 ++ fi ++ if [ -z "$ENABLE" -a -z "$FIND" -a -z "$FRIENDLY" ]; then ++ SHOW_STATUS=1 ++ fi ++ if [ -n "$MODULE" ] && [ "$MODULE" != "y" -a "$MODULE" != "n" ]; then ++ echo "--with_module must be either 'y' or 'n'" ++ exit 1 ++ fi ++ if [ -n "$MULTIPATHD" ] && [ "$MULTIPATHD" != "y" -a "$MULTIPATHD" != "n" ]; then ++ echo "--with_multipathd must be either 'y' or 'n'" ++ exit 1 ++ fi ++} ++ ++umask 0077 ++ ++parse_args "$@" ++ ++validate_args ++ ++if [ ! -d "$MULTIPATHDIR" ]; then ++ echo "/etc/multipath/ does not exist. failing" ++ exit 1 ++fi ++ ++rm $TMPFILE 2> /dev/null ++if [ -f "$CONFIGFILE" ]; then ++ cp $CONFIGFILE $TMPFILE ++elif [ -f "$DEFAULT_CONFIGFILE" ]; then ++ cp $DEFAULT_CONFIGFILE $TMPFILE ++else ++ touch $TMPFILE ++fi ++ ++if grep -q "^blacklist[[:space:]]*{" $TMPFILE ; then ++ HAVE_BLACKLIST=1 ++fi ++ ++if grep -q "^defaults[[:space:]]*{" $TMPFILE ; then ++ HAVE_DEFAULTS=1 ++fi ++ ++if [ -z "$MODULE" -o "$MODULE" = "y" ]; then ++ if lsmod | grep -q "dm_multipath" ; then ++ HAVE_MODULE=1 ++ else ++ HAVE_MODULE=0 ++ fi ++fi ++ ++if [ "$MULTIPATHD" = "y" ]; then ++ if service multipathd status > /dev/null ; then ++ HAVE_MULTIPATHD=1 ++ else ++ HAVE_MULTIPATHD=0 ++ fi ++fi ++ ++if [ "$HAVE_BLACKLIST" = "1" ]; then ++ if sed -n '/^blacklist[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*devnode \"\.\?\*\"" ; then ++ HAVE_DISABLE=1 ++ elif sed -n '/^blacklist[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*#[#[:space:]]*devnode \"\.\?\*\"" ; then ++ HAVE_DISABLE=0 ++ fi ++fi ++ ++if [ "$HAVE_DEFAULTS" = "1" ]; then ++ if sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*find_multipaths[[:space:]]*$yes\|1$" ; then ++ HAVE_FIND=1 ++ elif sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*find_multipaths[[:space:]]*$no\|0$" ; then ++ HAVE_FIND=0 ++ fi ++ if sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*user_friendly_names[[:space:]]*$yes\|1$" ; then ++ HAVE_FRIENDLY=1 ++ elif sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*user_friendly_names[[:space:]]*$no\|0$" ; then ++ HAVE_FRIENDLY=0 ++ fi ++fi ++ ++if [ -n "$SHOW_STATUS" ]; then ++ if [ -z "$HAVE_DISABLE" -o "$HAVE_DISABLE" = 0 ]; then ++ echo "multipath is enabled" ++ else ++ echo "multipath is disabled" ++ fi ++ if [ -z "$HAVE_FIND" -o "$HAVE_FIND" = 0 ]; then ++ echo "find_multipaths is disabled" ++ else ++ echo "find_multipaths is enabled" ++ fi ++ if [ -z "$HAVE_FRIENDLY" -o "$HAVE_FRIENDLY" = 0 ]; then ++ echo "user_friendly_names is disabled" ++ else ++ echo "user_friendly_names is enabled" ++ fi ++ if [ -n "$HAVE_MODULE" ]; then ++ if [ "$HAVE_MODULE" = 1 ]; then ++ echo "dm_multipath module is loaded" ++ else ++ echo "dm_multipath module is not loaded" ++ fi ++ fi ++ if [ -n "$HAVE_MULTIPATHD" ]; then ++ service multipathd status ++ fi ++ exit 0 ++fi ++ ++if [ -z "$HAVE_BLACKLIST" ]; then ++ cat >> $TMPFILE <<- _EOF_ ++ ++blacklist { ++} ++_EOF_ ++fi ++ ++if [ -z "$HAVE_DEFAULTS" ]; then ++ cat >> $TMPFILE <<- _EOF_ ++ ++defaults { ++} ++_EOF_ ++fi ++ ++if [ "$ENABLE" = 1 ]; then ++ if [ "$HAVE_DISABLE" = 1 ]; then ++ sed -i '/^blacklist[[:space:]]*{/,/^}/ s/^[[:space:]]*devnode \"\.\?\*\"/# devnode ".*"/' $TMPFILE ++ fi ++elif [ "$ENABLE" = 0 ]; then ++ if [ -z "$HAVE_DISABLE" ]; then ++ sed -i '/^blacklist[[:space:]]*{/ a\ ++ devnode "*" ++' $TMPFILE ++ elif [ "$HAVE_DISABLE" = 0 ]; then ++ sed -i '/^blacklist[[:space:]]*{/,/^}/ s/^[[:space:]]*#[#[:space:]]*devnode \"\.\?\*\"/ devnode ".*"/' $TMPFILE ++ fi ++fi ++ ++if [ "$FIND" = "n" ]; then ++ if [ "$HAVE_FIND" = 1 ]; then ++ sed -i '/^defaults[[:space:]]*{/,/^}/ s/^[[:space:]]*find_multipaths[[:space:]]*$yes\|1$/ find_multipaths no/' $TMPFILE ++ CHANGED_CONFIG=1 ++ fi ++elif [ "$FIND" = "y" ]; then ++ if [ -z "$HAVE_FIND" ]; then ++ sed -i '/^defaults[[:space:]]*{/ a\ ++ find_multipaths yes ++' $TMPFILE ++ CHANGED_CONFIG=1 ++ elif [ "$HAVE_FIND" = 0 ]; then ++ sed -i '/^defaults[[:space:]]*{/,/^}/ s/^[[:space:]]*find_multipaths[[:space:]]*$no\|0$/ find_multipaths yes/' $TMPFILE ++ CHANGED_CONFIG=1 ++ fi ++fi ++ ++if [ "$FRIENDLY" = "n" ]; then ++ if [ "$HAVE_FRIENDLY" = 1 ]; then ++ sed -i '/^defaults[[:space:]]*{/,/^}/ s/^[[:space:]]*user_friendly_names[[:space:]]*$yes\|1$/ user_friendly_names no/' $TMPFILE ++ CHANGED_CONFIG=1 ++ fi ++elif [ "$FRIENDLY" = "y" ]; then ++ if [ -z "$HAVE_FRIENDLY" ]; then ++ sed -i '/^defaults[[:space:]]*{/ a\ ++ user_friendly_names yes ++' $TMPFILE ++ CHANGED_CONFIG=1 ++ elif [ "$HAVE_FRIENDLY" = 0 ]; then ++ sed -i '/^defaults[[:space:]]*{/,/^}/ s/^[[:space:]]*user_friendly_names[[:space:]]*$no\|0$/ user_friendly_names yes/' $TMPFILE ++ CHANGED_CONFIG=1 ++ fi ++fi ++ ++if [ -f "$CONFIGFILE" ]; then ++ cp $CONFIGFILE $CONFIGFILE.old ++ if [ $? != 0 ]; then ++ echo "failed to backup old config file, $CONFIGFILE not updated" ++ exit 1 ++ fi ++fi ++ ++cp $TMPFILE $CONFIGFILE ++if [ $? != 0 ]; then ++ echo "failed to copy new config file into place, check $CONFIGFILE is still OK" ++ exit 1 ++fi ++ ++rm -f $TMPFILE ++ ++if [ "$ENABLE" = 1 ]; then ++ if [ "$HAVE_MODULE" = 0 ]; then ++ modprobe dm_multipath ++ fi ++ if [ "$HAVE_MULTIPATHD" = 0 ]; then ++ service multipathd start ++ fi ++elif [ "$ENABLE" = 0 ]; then ++ if [ "$HAVE_MULTIPATHD" = 1 ]; then ++ service multipathd stop ++ fi ++elif [ -n "$CHANGED_CONFIG" -a "$HAVE_MULTIPATHD" = 1 ]; then ++ service multipathd reload ++fi +Index: multipath-tools-120613/multipath/mpathconf.8 +=================================================================== +--- /dev/null ++++ multipath-tools-120613/multipath/mpathconf.8 +@@ -0,0 +1,103 @@ ++.TH MPATHCONF 8 "June 2010" "" "Linux Administrator's Manual" ++.SH NAME ++mpathconf - A tool for configuring device-mapper-multipath ++.SH SYNOPSIS ++.B mpathconf ++.RB [\| commands \|] ++.RB [\| options \|] ++.SH DESCRIPTION ++.B mpathconf ++is a utility that creates or modifies ++.B /etc/multipath.conf. ++It can enable or disable multipathing and configure some common options. ++.B mpathconf ++can also load the ++.B dm_multipath ++module, start and stop the ++.B multipathd ++daemon, and configure the ++.B multipathd ++service to start automatically or not. If ++.B mpathconf ++is called with no commands, it will display the current configuration. ++ ++The default options for mpathconf are ++.B --with_module ++The ++.B --with_multipathd ++option is not set by default. Enabling multipathing will load the ++.B dm_multipath ++module but it will not immediately start it. This is so ++that users can manually edit their config file if necessary, before starting ++.B multipathd. ++ ++If ++.B /etc/multipath.conf ++already exists, mpathconf will edit it. If it does not exist, mpathconf will ++use ++.B /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf ++as the starting file. This file has ++.B user_friendly_names ++set. If this file does not exist, mpathconf will create ++.B /etc/multipath.conf ++from scratch. For most users, this means that ++.B user_friendly_names ++will be set by default, unless they use the ++.B --user_friendly_names n ++command. ++.SH COMMANDS ++.TP ++.B --enable ++Removes any line that blacklists all device nodes from the ++.B /etc/multipath.conf ++blacklist section. ++.TP ++.B --disable ++Adds a line that blacklists all device nodes to the ++.B /etc/multipath.conf ++blacklist section. If no blacklist section exists, it will create one. ++.TP ++.B --user_friendly_name \fP { \fBy\fP | \fBn\fP } ++If set to \fBy\fP, this adds the line ++.B user_friendly_names yes ++to the ++.B /etc/multipath.conf ++defaults section. If set to \fBn\fP, this removes the line, if present. This ++command can be used along with any other command. ++.TP ++.B --find_multipaths\fP { \fBy\fP | \fBn\fP } ++If set to \fBy\fP, this adds the line ++.B find_multipaths yes ++to the ++.B /etc/multipath.conf ++defaults section. If set to \fBn\fP, this removes the line, if present. This ++command can be used aldong with any other command. ++.SH OPTIONS ++.TP ++.B --with_module\fP { \fBy\fP | \fBn\fP } ++If set to \fBy\fP, this runs ++.B modprobe dm_multipath ++to install the multipath modules. This option only works with the ++.B --enable ++command. This option is set to \fBy\fP by default. ++.TP ++.B --with_multipathd { \fBy\fP | \fBn\fP } ++If set to \fBy\fP, this runs ++.B service multipathd start ++to start the multipathd daemon on \fB--enable\fP, ++.B service multipathd stop ++to start the multipathd daemon on \fB--disable\fP, and ++.B service multipathd reload ++to reconfigure multipathd on \fB--user_frindly_names\fP and ++\fB--find_multipaths\fP. ++This option is set to \fBn\fP by default. ++.SH FILES ++.BR /etc/multipath.conf ++.SH "SEE ALSO" ++.BR multipath.conf (5), ++.BR modprobe (8), ++.BR multipath (8), ++.BR multipathd (8), ++.BR service (8), ++.SH AUTHOR ++Benjamin Marzinski <bmarzins(a)redhat.com> diff --git a/multipath-tools/patches/0009-RH-multipathd-blacklist-all-by-default.patch b/multipath-tools/patches/0009-RH-multipathd-blacklist-all-by-default.patch deleted file mode 100644 index df4b4c7..0000000 --- a/multipath-tools/patches/0009-RH-multipathd-blacklist-all-by-default.patch +++ /dev/null @@ -1,70 +0,0 @@ -From 61b2002c6b2752c15b431e400cd614edc8c5b039 Mon Sep 17 00:00:00 2001 -From: Fabio M. Di Nitto <fdinitto(a)redhat.com> -Date: Mon, 19 Oct 2009 07:05:45 +0200 -Subject: [PATCH 09/12] RH: multipathd blacklist all by default - -If there is no configuration installed on the system, blacklist -everything by default. - -BZ#528059 - -Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com> ---- -:100644 100644 e7e962e... 5aa1ab0... M libmultipath/config.c -:100644 100644 86b1320... 7e90e75... M libmultipath/config.h - libmultipath/config.c | 18 +++++++++++++++++- - libmultipath/config.h | 1 + - 2 files changed, 18 insertions(+), 1 deletions(-) - -diff --git a/libmultipath/config.c b/libmultipath/config.c -index e7e962e..5aa1ab0 100644 ---- a/libmultipath/config.c -+++ b/libmultipath/config.c -@@ -19,6 +19,7 @@ - #include "blacklist.h" - #include "defaults.h" - #include "prio.h" -+#include "version.h" - - static int - hwe_strmatch (struct hwentry *hwe1, struct hwentry *hwe2) -@@ -463,8 +464,23 @@ load_config (char * file) - condlog(0, "error parsing config file"); - goto out; - } -+ } else { -+ condlog(0, "/etc/multipath.conf does not exist, blacklisting all devices."); -+ condlog(0, "A default multipath.conf file is located at"); -+ condlog(0, -+"/usr/share/doc/device-mapper-multipath-%d.%d.%d/multipath.conf", -+ MULTIPATH_VERSION(VERSION_CODE)); -+ conf->blist_devnode = vector_alloc(); -+ if (!conf->blist_devnode) { -+ condlog(0, "cannot allocate blacklist\n"); -+ goto out; -+ } -+ if (store_ble(conf->blist_devnode, strdup(".*"), -+ ORIGIN_NO_CONFIG)) { -+ condlog(0, "cannot store default no-config blacklist\n"); -+ goto out; -+ } - } -- - /* - * remove duplica in hwtable. config file takes precedence - * over build-in hwtable -diff --git a/libmultipath/config.h b/libmultipath/config.h -index 86b1320..7e90e75 100644 ---- a/libmultipath/config.h -+++ b/libmultipath/config.h -@@ -5,6 +5,7 @@ - - #define ORIGIN_DEFAULT 0 - #define ORIGIN_CONFIG 1 -+#define ORIGIN_NO_CONFIG 2 - - enum devtypes { - DEV_NONE, --- -1.6.5.1 - diff --git a/multipath-tools/patches/0010-RH-add-find-multipaths.patch b/multipath-tools/patches/0010-RH-add-find-multipaths.patch new file mode 100644 index 0000000..57eb0a8 --- /dev/null +++ b/multipath-tools/patches/0010-RH-add-find-multipaths.patch @@ -0,0 +1,222 @@ +--- + libmultipath/config.c | 1 + + libmultipath/config.h | 1 + + libmultipath/configure.c | 11 +++++++++++ + libmultipath/defaults.h | 1 + + libmultipath/dict.c | 34 ++++++++++++++++++++++++++++++++++ + libmultipath/wwids.c | 26 ++++++++++++++++++++++++++ + libmultipath/wwids.h | 1 + + multipath/main.c | 2 +- + multipathd/main.c | 6 ++++++ + 9 files changed, 82 insertions(+), 1 deletion(-) + +Index: multipath-tools-120518/libmultipath/config.c +=================================================================== +--- multipath-tools-120518.orig/libmultipath/config.c ++++ multipath-tools-120518/libmultipath/config.c +@@ -514,6 +514,7 @@ load_config (char * file) + conf->reassign_maps = DEFAULT_REASSIGN_MAPS; + conf->checkint = DEFAULT_CHECKINT; + conf->max_checkint = MAX_CHECKINT(conf->checkint); ++ conf->find_multipaths = DEFAULT_FIND_MULTIPATHS; + + /* + * preload default hwtable +Index: multipath-tools-120518/libmultipath/configure.c +=================================================================== +--- multipath-tools-120518.orig/libmultipath/configure.c ++++ multipath-tools-120518/libmultipath/configure.c +@@ -497,6 +497,10 @@ coalesce_paths (struct vectors * vecs, v + + memset(empty_buff, 0, WWID_SIZE); + ++ /* ignore refwwid if it's empty */ ++ if (refwwid && !strlen(refwwid)) ++ refwwid = NULL; ++ + if (force_reload) { + vector_foreach_slot (pathvec, pp1, k) { + pp1->mpp = NULL; +@@ -526,6 +530,13 @@ coalesce_paths (struct vectors * vecs, v + if (refwwid && strncmp(pp1->wwid, refwwid, WWID_SIZE)) + continue; + ++ /* If find_multipaths was selected check if the path is valid */ ++ if (conf->find_multipaths && !refwwid && ++ !should_multipath(pp1, pathvec)) { ++ orphan_path(pp1); ++ continue; ++ } ++ + /* + * at this point, we know we really got a new mp + */ +Index: multipath-tools-120518/libmultipath/defaults.h +=================================================================== +--- multipath-tools-120518.orig/libmultipath/defaults.h ++++ multipath-tools-120518/libmultipath/defaults.h +@@ -15,6 +15,7 @@ + #define DEFAULT_USER_FRIENDLY_NAMES 0 + #define DEFAULT_VERBOSITY 2 + #define DEFAULT_REASSIGN_MAPS 1 ++#define DEFAULT_FIND_MULTIPATHS 0 + + #define DEFAULT_CHECKINT 5 + #define MAX_CHECKINT(a) (a << 2) +Index: multipath-tools-120518/libmultipath/dict.c +=================================================================== +--- multipath-tools-120518.orig/libmultipath/dict.c ++++ multipath-tools-120518/libmultipath/dict.c +@@ -585,6 +585,27 @@ def_reservation_key_handler(vector strve + } + + static int ++def_find_multipaths_handler(vector strvec) ++{ ++ char * buff; ++ ++ buff = set_value(strvec); ++ ++ if (!buff) ++ return 1; ++ ++ if ((strlen(buff) == 2 && !strcmp(buff, "no")) || ++ (strlen(buff) == 1 && !strcmp(buff, "0"))) ++ conf->find_multipaths = 0; ++ else if ((strlen(buff) == 3 && !strcmp(buff, "yes")) || ++ (strlen(buff) == 1 && !strcmp(buff, "1"))) ++ conf->find_multipaths = 1; ++ ++ FREE(buff); ++ return 0; ++} ++ ++static int + def_names_handler(vector strvec) + { + char * buff; +@@ -2549,6 +2570,18 @@ snprint_def_log_checker_err (char * buff + } + + static int ++snprint_def_find_multipaths (char * buff, int len, void * data) ++{ ++ if (conf->find_multipaths == DEFAULT_FIND_MULTIPATHS) ++ return 0; ++ if (!conf->find_multipaths) ++ return snprintf(buff, len, "no"); ++ ++ return snprintf(buff, len, "yes"); ++} ++ ++ ++static int + snprint_def_user_friendly_names (char * buff, int len, void * data) + { + if (conf->user_friendly_names == USER_FRIENDLY_NAMES_ON) +@@ -2646,6 +2679,7 @@ init_keywords(void) + install_keyword("bindings_file", &bindings_file_handler, &snprint_def_bindings_file); + install_keyword("log_checker_err", &def_log_checker_err_handler, &snprint_def_log_checker_err); + install_keyword("reservation_key", &def_reservation_key_handler, &snprint_def_reservation_key); ++ install_keyword("find_multipaths", &def_find_multipaths_handler, &snprint_def_find_multipaths); + __deprecated install_keyword("default_selector", &def_selector_handler, NULL); + __deprecated install_keyword("default_path_grouping_policy", &def_pgpolicy_handler, NULL); + __deprecated install_keyword("default_uid_attribute", &def_uid_attribute_handler, NULL); +Index: multipath-tools-120518/libmultipath/wwids.c +=================================================================== +--- multipath-tools-120518.orig/libmultipath/wwids.c ++++ multipath-tools-120518/libmultipath/wwids.c +@@ -124,6 +124,32 @@ out: + } + + int ++should_multipath(struct path *pp1, vector pathvec) ++{ ++ int i; ++ struct path *pp2; ++ ++ condlog(4, "checking if %s should be multipathed", pp1->dev); ++ vector_foreach_slot(pathvec, pp2, i) { ++ if (pp1->dev == pp2->dev) ++ continue; ++ if (strncmp(pp1->wwid, pp2->wwid, WWID_SIZE) == 0) { ++ condlog(3, "found multiple paths with wwid %s, " ++ "multipathing %s", pp1->wwid, pp1->dev); ++ return 1; ++ } ++ } ++ if (check_wwids_file(pp1->wwid, 0) < 0) { ++ condlog(3, "wwid %s not in wwids file, skipping %s", ++ pp1->wwid, pp1->dev); ++ return 0; ++ } ++ condlog(3, "found wwid %s in wwids file, multipathing %s", pp1->wwid, ++ pp1->dev); ++ return 1; ++} ++ ++int + remember_wwid(char *wwid) + { + int ret = check_wwids_file(wwid, 1); +Index: multipath-tools-120518/libmultipath/wwids.h +=================================================================== +--- multipath-tools-120518.orig/libmultipath/wwids.h ++++ multipath-tools-120518/libmultipath/wwids.h +@@ -12,6 +12,7 @@ + "#\n" \ + "# Valid WWIDs:\n" + ++int should_multipath(struct path *pp, vector pathvec); + int remember_wwid(char *wwid); + int check_wwids_file(char *wwid, int write_wwid); + +Index: multipath-tools-120518/multipath/main.c +=================================================================== +--- multipath-tools-120518.orig/multipath/main.c ++++ multipath-tools-120518/multipath/main.c +@@ -332,7 +332,7 @@ configure (void) + /* + * core logic entry point + */ +- r = coalesce_paths(&vecs, NULL, NULL, conf->force_reload); ++ r = coalesce_paths(&vecs, NULL, refwwid, conf->force_reload); + + out: + if (refwwid) +Index: multipath-tools-120518/multipathd/main.c +=================================================================== +--- multipath-tools-120518.orig/multipathd/main.c ++++ multipath-tools-120518/multipathd/main.c +@@ -49,6 +49,7 @@ + #include <print.h> + #include <configure.h> + #include <prio.h> ++#include <wwids.h> + #include <pgpolicies.h> + #include <uevent.h> + +@@ -473,6 +474,11 @@ rescan: + return 1; + } + ++ if (conf->find_multipaths && ++ !should_multipath(pp, vecs->pathvec)) { ++ orphan_path(pp); ++ return 0; ++ } + condlog(4,"%s: creating new map", pp->dev); + if ((mpp = add_map_with_path(vecs, pp, 1))) { + mpp->action = ACT_CREATE; +Index: multipath-tools-120518/libmultipath/config.h +=================================================================== +--- multipath-tools-120518.orig/libmultipath/config.h ++++ multipath-tools-120518/libmultipath/config.h +@@ -104,6 +104,7 @@ struct config { + unsigned int dev_loss; + int log_checker_err; + int allow_queueing; ++ int find_multipaths; + uid_t uid; + gid_t gid; + mode_t mode; diff --git a/multipath-tools/patches/0010-RH-multipath-rules-udev-changes.patch b/multipath-tools/patches/0010-RH-multipath-rules-udev-changes.patch deleted file mode 100644 index 4250ec7..0000000 --- a/multipath-tools/patches/0010-RH-multipath-rules-udev-changes.patch +++ /dev/null @@ -1,58 +0,0 @@ -From 5a43356b54c2672441ce67cd9602904a5df04117 Mon Sep 17 00:00:00 2001 -From: Fabio M. Di Nitto <fdinitto(a)redhat.com> -Date: Mon, 19 Oct 2009 07:07:01 +0200 -Subject: [PATCH 10/12] RH: multipath rules + udev changes - -Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com> ---- -:100644 100644 ac97749... 064196d... M multipath/multipath.rules - multipath/Makefile | 6 +++--- - multipath/multipath.rules | 18 +++++++++++------- - 2 files changed, 14 insertions(+), 10 deletions(-) - -Index: multipath-tools/multipath/multipath.rules -=================================================================== ---- multipath-tools.orig/multipath/multipath.rules -+++ multipath-tools/multipath/multipath.rules -@@ -1,7 +1,11 @@ --# --# udev rules for multipathing. --# The persistent symlinks are created with the kpartx rules --# -- --# socket for uevents --SUBSYSTEM=="block", RUN+="socket:/org/kernel/dm/multipath_event" -+# multipath wants the devmaps presented as meaninglful device names -+# so name them after their devmap name -+SUBSYSTEM!="block", GOTO="end_mpath" -+RUN+="socket:/org/kernel/dm/multipath_event" -+KERNEL!="dm-*", GOTO="end_mpath" -+ACTION!="change", GOTO="end_mpath" -+ENV{DM_SUSPENDED}=="1", GOTO="end_mpath" -+ENV{DM_UUID}!="mpath-?*", GOTO="end_mpath" -+ENV{DM_ACTION}=="PATH_FAILED", GOTO="end_mpath" -+RUN+="$env{DM_SBIN_PATH}/kpartx -a -p p $tempnode" -+LABEL="end_mpath" -Index: multipath-tools/multipath/Makefile -=================================================================== ---- multipath-tools.orig/multipath/Makefile -+++ multipath-tools/multipath/Makefile -@@ -21,15 +21,15 @@ $(EXEC): $(OBJS) - install: - $(INSTALL_PROGRAM) -d $(DESTDIR)$(bindir) - $(INSTALL_PROGRAM) -m 755 $(EXEC) $(DESTDIR)$(bindir)/ -- $(INSTALL_PROGRAM) -d $(DESTDIR)/etc/udev/rules.d -- $(INSTALL_PROGRAM) -m 644 multipath.rules $(DESTDIR)/etc/udev/rules.d/ -+ $(INSTALL_PROGRAM) -d $(DESTDIR)/lib/udev/rules.d -+ $(INSTALL_PROGRAM) -m 644 multipath.rules $(DESTDIR)/lib/udev/rules.d/40-multipath.rules - $(INSTALL_PROGRAM) -d $(DESTDIR)$(mandir) - $(INSTALL_PROGRAM) -m 644 $(EXEC).8.gz $(DESTDIR)$(mandir) - $(INSTALL_PROGRAM) -d $(DESTDIR)$(man5dir) - $(INSTALL_PROGRAM) -m 644 $(EXEC).conf.5.gz $(DESTDIR)$(man5dir) - - uninstall: -- rm $(DESTDIR)/etc/udev/rules.d/multipath.rules -+ rm $(DESTDIR)/lib/udev/rules.d/multipath.rules - rm $(DESTDIR)$(bindir)/$(EXEC) - rm $(DESTDIR)$(mandir)/$(EXEC).8.gz - rm $(DESTDIR)$(man5dir)/$(EXEC).conf.5.gz diff --git a/multipath-tools/patches/0011-RH-add-hp_tur-checker.patch b/multipath-tools/patches/0011-RH-add-hp_tur-checker.patch new file mode 100644 index 0000000..bc8d73b --- /dev/null +++ b/multipath-tools/patches/0011-RH-add-hp_tur-checker.patch @@ -0,0 +1,274 @@ +--- + libmultipath/checkers.h | 3 + + libmultipath/checkers/Makefile | 4 + + libmultipath/checkers/tur.c | 123 +++++++++++++++++++++++++++++++++++++++-- + multipath.conf.annotated | 5 + + 4 files changed, 128 insertions(+), 7 deletions(-) + +Index: multipath-tools-120613/libmultipath/checkers.h +=================================================================== +--- multipath-tools-120613.orig/libmultipath/checkers.h ++++ multipath-tools-120613/libmultipath/checkers.h +@@ -60,6 +60,7 @@ enum path_check_state { + + #define DIRECTIO "directio" + #define TUR "tur" ++#define HP_TUR "hp_tur" + #define HP_SW "hp_sw" + #define RDAC "rdac" + #define EMC_CLARIION "emc_clariion" +@@ -77,6 +78,7 @@ enum path_check_state { + #define CHECKER_MSG_LEN 256 + #define CHECKER_DEV_LEN 256 + #define LIB_CHECKER_NAMELEN 256 ++#define WWID_SIZE 128 + + struct checker { + struct list_head node; +@@ -88,6 +90,7 @@ struct checker { + int disable; + char name[CHECKER_NAME_LEN]; + char message[CHECKER_MSG_LEN]; /* comm with callers */ ++ char wwid[WWID_SIZE]; /* LUN wwid */ + void * context; /* store for persistent data */ + void ** mpcontext; /* store for persistent data shared + multipath-wide. Use MALLOC if +Index: multipath-tools-120613/libmultipath/checkers/Makefile +=================================================================== +--- multipath-tools-120613.orig/libmultipath/checkers/Makefile ++++ multipath-tools-120613/libmultipath/checkers/Makefile +@@ -8,6 +8,7 @@ LIBS= \ + libcheckcciss_tur.so \ + libcheckreadsector0.so \ + libchecktur.so \ ++ libcheckhp_tur.so \ + libcheckdirectio.so \ + libcheckemc_clariion.so \ + libcheckhp_sw.so \ +@@ -23,6 +24,9 @@ libcheckdirectio.so: libsg.o directio.o + libcheck%.so: libsg.o %.o + $(CC) $(LDFLAGS) $(SHARED_FLAGS) -o $@ $^ + ++hp_tur.o: tur.c ++ $(CC) $(CFLAGS) -DCHECK_WWID -c -o $@ $< ++ + install: + $(INSTALL_PROGRAM) -m 755 $(LIBS) $(DESTDIR)$(libdir) + +Index: multipath-tools-120613/libmultipath/checkers/tur.c +=================================================================== +--- multipath-tools-120613.orig/libmultipath/checkers/tur.c ++++ multipath-tools-120613/libmultipath/checkers/tur.c +@@ -24,12 +24,101 @@ + #define TUR_CMD_LEN 6 + #define HEAVY_CHECK_COUNT 10 + ++#ifdef CHECK_WWID ++#define MSG_TUR_UP "HP tur checker reports path is up" ++#define MSG_TUR_DOWN "HP tur checker reports path is down" ++#define MSG_TUR_GHOST "HP tur checker reports path is in standby state" ++#define MSG_TUR_RUNNING "HP tur checker still running" ++#define MSG_TUR_TIMEOUT "HP tur checker timed out" ++#define MSG_TUR_FAILED "HP tur checker failed to initialize" ++#define EVPD 0x01 ++#define PAGE_83 0x83 ++#define INQUIRY_CMD 0x12 ++#define INQUIRY_CMDLEN 6 ++#define SCSI_INQ_BUFF_LEN 96 ++#else + #define MSG_TUR_UP "tur checker reports path is up" + #define MSG_TUR_DOWN "tur checker reports path is down" + #define MSG_TUR_GHOST "tur checker reports path is in standby state" + #define MSG_TUR_RUNNING "tur checker still running" + #define MSG_TUR_TIMEOUT "tur checker timed out" + #define MSG_TUR_FAILED "tur checker failed to initialize" ++#endif ++ ++#ifdef CHECK_WWID ++static int ++do_inq(int fd, unsigned int timeout, char * wwid) ++{ ++ int ret = -1; ++ unsigned char inq_cmd[INQUIRY_CMDLEN] = ++ {INQUIRY_CMD, EVPD, PAGE_83, 0, SCSI_INQ_BUFF_LEN, 0 }; ++ unsigned char sense_buffer[32]; ++ unsigned char resp_buffer[SCSI_INQ_BUFF_LEN]; ++ char *pbuff; ++ ++ int m,k; ++ int retry_tur = 5; ++ struct sg_io_hdr io_hdr; ++ ++retry: ++ memset(resp_buffer, 0, sizeof(resp_buffer)); ++ memset(&io_hdr, 0, sizeof(struct sg_io_hdr)); ++ ++ io_hdr.interface_id = 'S'; ++ io_hdr.cmd_len = sizeof(inq_cmd); ++ io_hdr.mx_sb_len = sizeof(sense_buffer); ++ io_hdr.dxfer_direction = -3; // Data transfer from the device. ++ io_hdr.dxfer_len = sizeof(resp_buffer); ++ io_hdr.dxferp = (unsigned char *)resp_buffer; ++ io_hdr.cmdp = inq_cmd; ++ io_hdr.sbp = sense_buffer; ++ io_hdr.timeout = timeout; // IOCTL timeout value. ++ ++ if (ioctl(fd, SG_IO, &io_hdr) < 0) { ++ condlog(0, "SG_IO ioctl failed: %s", strerror(errno)); ++ return ret; ++ } ++ if (io_hdr.info & SG_INFO_OK_MASK){ ++ int key = 0, asc, ascq; ++ ++ if (io_hdr.host_status == DID_BUS_BUSY || ++ io_hdr.host_status == DID_ERROR || ++ io_hdr.host_status == DID_TRANSPORT_DISRUPTED) { ++ if (--retry_tur) ++ goto retry; ++ } ++ if (io_hdr.sb_len_wr > 3) { ++ if (io_hdr.sbp[0] == 0x72 || io_hdr.sbp[0] == 0x73) { ++ key = io_hdr.sbp[1] & 0x0f; ++ asc = io_hdr.sbp[2]; ++ ascq = io_hdr.sbp[3]; ++ } else if (io_hdr.sb_len_wr > 13 && ++ ((io_hdr.sbp[0] & 0x7f) == 0x70 || ++ (io_hdr.sbp[0] & 0x7f) == 0x71)) { ++ key = io_hdr.sbp[2] & 0x0f; ++ asc = io_hdr.sbp[12]; ++ ascq = io_hdr.sbp[13]; ++ } ++ } ++ if (key == 0x6) { ++ /* Unit Attention, retry */ ++ if (--retry_tur) ++ goto retry; ++ } ++ return ret; ++ } ++ ++ pbuff = (char *) resp_buffer; ++ ++ wwid[0] = '3'; ++ for (m = 8, k = 1; m < 11; ++m, k+=2) ++ sprintf(&wwid[k], "%02x", (unsigned int)pbuff[m] & 0xff); ++ for (m = 11; m < 24; ++m, k+=2) ++ sprintf(&wwid[k], "%02x", (unsigned int)pbuff[m] & 0xff); ++ ++ return (ret = 0); ++} ++#endif + + struct tur_checker_context { + dev_t devt; +@@ -43,6 +132,7 @@ struct tur_checker_context { + pthread_cond_t active; + pthread_spinlock_t hldr_lock; + int holders; ++ char wwid[WWID_SIZE]; + char message[CHECKER_MSG_LEN]; + }; + +@@ -100,12 +190,15 @@ void libcheck_free (struct checker * c) + #define TUR_MSG(msg, fmt, args...) snprintf(msg, CHECKER_MSG_LEN, fmt, ##args); + + int +-tur_check(int fd, unsigned int timeout, char *msg) ++tur_check (int fd, unsigned int timeout, char *msg, char *wwid) + { + struct sg_io_hdr io_hdr; + unsigned char turCmdBlk[TUR_CMD_LEN] = { 0x00, 0, 0, 0, 0, 0 }; + unsigned char sense_buffer[32]; + int retry_tur = 5; ++#ifdef CHECK_WWID ++ char new_wwid[WWID_SIZE]; ++#endif + + retry: + memset(&io_hdr, 0, sizeof (struct sg_io_hdr)); +@@ -179,6 +272,24 @@ tur_check(int fd, unsigned int timeout, + TUR_MSG(msg, MSG_TUR_DOWN); + return PATH_DOWN; + } ++#ifdef CHECK_WWID ++ if (!do_inq(fd, timeout, new_wwid)) { ++ ++ if(!strcmp(wwid, "\0")) { ++ strcpy(wwid, new_wwid); ++ goto up; ++ } ++ ++ if (strcmp(wwid , new_wwid)) { ++ condlog(0, ++ "hp_tur: Lun collided. new_wwid %s old_wwid %s", ++ new_wwid, wwid); ++ TUR_MSG(msg, MSG_TUR_DOWN); ++ return PATH_DOWN; ++ } ++ } ++up: ++#endif + TUR_MSG(msg, MSG_TUR_UP); + return PATH_UP; + } +@@ -215,7 +326,7 @@ void *tur_thread(void *ctx) + ct->state = PATH_PENDING; + pthread_mutex_unlock(&ct->lock); + +- state = tur_check(ct->fd, ct->timeout, ct->message); ++ state = tur_check(ct->fd, ct->timeout, ct->message, ct->wwid); + + /* TUR checker done */ + pthread_mutex_lock(&ct->lock); +@@ -275,7 +386,7 @@ libcheck_check (struct checker * c) + ct->devt = sb.st_rdev; + + if (c->sync) +- return tur_check(c->fd, c->timeout, c->message); ++ return tur_check(c->fd, c->timeout, c->message, ct->wwid); + + /* + * Async mode +@@ -319,7 +430,8 @@ libcheck_check (struct checker * c) + pthread_mutex_unlock(&ct->lock); + condlog(3, "%d:%d: tur thread not responding, " + "using sync mode", TUR_DEVT(ct)); +- return tur_check(c->fd, c->timeout, c->message); ++ return tur_check(c->fd, c->timeout, c->message, ++ ct->wwid); + } + /* Start new TUR checker */ + ct->state = PATH_UNCHECKED; +@@ -337,7 +449,8 @@ libcheck_check (struct checker * c) + ct->holders--; + condlog(3, "%d:%d: failed to start tur thread, using" + " sync mode", TUR_DEVT(ct)); +- return tur_check(c->fd, c->timeout, c->message); ++ return tur_check(c->fd, c->timeout, c->message, ++ ct->wwid); + } + pthread_attr_destroy(&attr); + tur_timeout(&tsp); +Index: multipath-tools-120613/multipath.conf.annotated +=================================================================== +--- multipath-tools-120613.orig/multipath.conf.annotated ++++ multipath-tools-120613/multipath.conf.annotated +@@ -96,7 +96,8 @@ + # # name : path_checker, checker + # # scope : multipath & multipathd + # # desc : the default method used to determine the paths' state +-# # values : readsector0|tur|emc_clariion|hp_sw|directio|rdac|cciss_tur ++# # values : readsector0|tur|emc_clariion|hp_sw|directio|rdac| ++# cciss_tur|hp_tur + # # default : directio + # # + # path_checker directio +@@ -493,7 +494,7 @@ + # # scope : multipathd & multipathd + # # desc : path checking algorithm to use to check path state + # # values : readsector0|tur|emc_clariion|hp_sw|directio|rdac| +-# # cciss_tur ++# # cciss_tur|hp_tur + # # + # path_checker directio + # diff --git a/multipath-tools/patches/0011-RH-fix-init-script-LSB-headers.patch b/multipath-tools/patches/0011-RH-fix-init-script-LSB-headers.patch deleted file mode 100644 index 4e305ad..0000000 --- a/multipath-tools/patches/0011-RH-fix-init-script-LSB-headers.patch +++ /dev/null @@ -1,29 +0,0 @@ -From 887b0721d29eed45621b5a7fefaf462378cc9dcd Mon Sep 17 00:00:00 2001 -From: Fabio M. Di Nitto <fdinitto(a)redhat.com> -Date: Mon, 19 Oct 2009 08:33:07 +0200 -Subject: [PATCH 11/12] RH: fix init script LSB headers - -Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com> ---- -:100644 100644 e46b1b8... cfc9cf5... M multipathd/multipathd.init.redhat - multipathd/multipathd.init.redhat | 4 ++++ - 1 files changed, 4 insertions(+), 0 deletions(-) - -diff --git a/multipathd/multipathd.init.redhat b/multipathd/multipathd.init.redhat -index e46b1b8..cfc9cf5 100644 ---- a/multipathd/multipathd.init.redhat -+++ b/multipathd/multipathd.init.redhat -@@ -7,6 +7,10 @@ - - ### BEGIN INIT INFO - # Provides: multipathd -+# Required-Start: -+# Required-Stop: -+# Default-Start: -+# Default-Stop: - # Short-Description: Control multipathd - # Description: This service monitors and manages - # device-mapper multipath devices --- -1.6.5.1 - diff --git a/multipath-tools/patches/0012-RH-RHEL5-style-partitions.patch b/multipath-tools/patches/0012-RH-RHEL5-style-partitions.patch new file mode 100644 index 0000000..47fa725 --- /dev/null +++ b/multipath-tools/patches/0012-RH-RHEL5-style-partitions.patch @@ -0,0 +1,327 @@ +--- + kpartx/bsd.c | 35 --------------- + kpartx/dos.c | 7 +-- + kpartx/kpartx.c | 123 +++++++------------------------------------------------- + kpartx/kpartx.h | 1 + kpartx/sun.c | 35 --------------- + 5 files changed, 24 insertions(+), 177 deletions(-) + +Index: multipath-tools-120123/kpartx/bsd.c +=================================================================== +--- multipath-tools-120123.orig/kpartx/bsd.c ++++ multipath-tools-120123/kpartx/bsd.c +@@ -50,10 +50,10 @@ int + read_bsd_pt(int fd, struct slice all, struct slice *sp, int ns) { + struct bsd_disklabel *l; + struct bsd_partition *p; +- unsigned int offset = all.start, end; ++ unsigned int offset = all.start; + int max_partitions; + char *bp; +- int n = 0, i, j; ++ int n = 0; + + bp = getblock(fd, offset+1); /* 1 sector suffices */ + if (bp == NULL) +@@ -79,36 +79,5 @@ read_bsd_pt(int fd, struct slice all, st + break; + } + } +- /* +- * Convention has it that the bsd disklabel will always have +- * the 'c' partition spanning the entire disk. +- * So we have to check for contained slices. +- */ +- for(i = 0; i < n; i++) { +- if (sp[i].size == 0) +- continue; +- +- end = sp[i].start + sp[i].size; +- for(j = 0; j < n; j ++) { +- if ( i == j ) +- continue; +- if (sp[j].size == 0) +- continue; +- +- if (sp[i].start < sp[j].start) { +- if (end > sp[j].start && +- end < sp[j].start + sp[j].size) { +- /* Invalid slice */ +- fprintf(stderr, +- "bsd_disklabel: slice %d overlaps with %d\n", i , j); +- sp[i].size = 0; +- } +- } else { +- if (end <= sp[j].start + sp[j].size) { +- sp[i].container = j + 1; +- } +- } +- } +- } + return n; + } +Index: multipath-tools-120123/kpartx/dos.c +=================================================================== +--- multipath-tools-120123.orig/kpartx/dos.c ++++ multipath-tools-120123/kpartx/dos.c +@@ -16,7 +16,7 @@ is_extended(int type) { + } + + static int +-read_extended_partition(int fd, struct partition *ep, int en, ++read_extended_partition(int fd, struct partition *ep, + struct slice *sp, int ns) + { + struct partition p; +@@ -53,7 +53,6 @@ read_extended_partition(int fd, struct p + if (n < ns) { + sp[n].start = here + le32_to_cpu(p.start_sect); + sp[n].size = le32_to_cpu(p.nr_sects); +- sp[n].container = en + 1; + n++; + } else { + fprintf(stderr, +@@ -98,7 +97,9 @@ read_dos_pt(int fd, struct slice all, st + break; + } + if (is_extended(p.sys_type)) { +- n += read_extended_partition(fd, &p, i, sp+n, ns-n); ++ n += read_extended_partition(fd, &p, sp+n, ns-n); ++ /* hide the extended partition itself */ ++ sp[i].size = 2; + } + } + return n; +Index: multipath-tools-120123/kpartx/kpartx.c +=================================================================== +--- multipath-tools-120123.orig/kpartx/kpartx.c ++++ multipath-tools-120123/kpartx/kpartx.c +@@ -190,7 +190,7 @@ get_hotplug_device(void) + + int + main(int argc, char **argv){ +- int i, j, m, n, op, off, arg, c, d, ro=0; ++ int i, j, m, n, op, off, arg, ro=0; + int fd = -1; + struct slice all; + struct pt *ptp; +@@ -380,49 +380,30 @@ main(int argc, char **argv){ + else + continue; + ++ /* ++ * test for overlap, as in the case of an extended partition ++ * zero their size to avoid mapping ++ */ ++ for (j = 0; j < n; j++) { ++ for (m = j + 1; m < n; m++) { ++ if (slices[m].start > slices[j].start && ++ slices[m].start < slices[j].start + ++ slices[j].size) ++ slices[j].size = 0; ++ } ++ } ++ + switch(what) { + case LIST: +- for (j = 0, c = 0, m = 0; j < n; j++) { ++ for (j = 0; j < n; j++) { + if (slices[j].size == 0) + continue; +- if (slices[j].container > 0) { +- c++; +- continue; +- } +- +- slices[j].minor = m++; + + printf("%s%s%d : 0 %" PRIu64 " %s %" PRIu64"\n", + mapname, delim, j+1, + slices[j].size, device, + slices[j].start); + } +- /* Loop to resolve contained slices */ +- d = c; +- while (c) { +- for (j = 0; j < n; j++) { +- uint64_t start; +- int k = slices[j].container - 1; +- +- if (slices[j].size == 0) +- continue; +- if (slices[j].minor > 0) +- continue; +- if (slices[j].container == 0) +- continue; +- slices[j].minor = m++; +- +- start = slices[j].start - slices[k].start; +- printf("%s%s%d : 0 %" PRIu64 " /dev/dm-%d %" PRIu64 "\n", +- mapname, delim, j+1, +- slices[j].size, +- slices[k].minor, start); +- c--; +- } +- /* Terminate loop if nothing more to resolve */ +- if (d == c) +- break; +- } + + break; + +@@ -461,16 +442,10 @@ main(int argc, char **argv){ + case ADD: + case UPDATE: + /* ADD and UPDATE share the same code that adds new partitions. */ +- for (j = 0, c = 0; j < n; j++) { ++ for (j = 0; j < n; j++) { + if (slices[j].size == 0) + continue; + +- /* Skip all contained slices */ +- if (slices[j].container > 0) { +- c++; +- continue; +- } +- + if (safe_sprintf(partname, "%s%s%d", + mapname, delim, j+1)) { + fprintf(stderr, "partname too small\n"); +@@ -511,72 +486,6 @@ main(int argc, char **argv){ + slices[j].minor, slices[j].size, + DM_TARGET, params); + } +- /* Loop to resolve contained slices */ +- d = c; +- while (c) { +- for (j = 0; j < n; j++) { +- uint64_t start; +- int k = slices[j].container - 1; +- +- if (slices[j].size == 0) +- continue; +- +- /* Skip all existing slices */ +- if (slices[j].minor > 0) +- continue; +- +- /* Skip all simple slices */ +- if (slices[j].container == 0) +- continue; +- +- /* Check container slice */ +- if (slices[k].size == 0) +- fprintf(stderr, "Invalid slice %d\n", +- k); +- +- if (safe_sprintf(partname, "%s%s%d", +- mapname, delim, j+1)) { +- fprintf(stderr, "partname too small\n"); +- exit(1); +- } +- strip_slash(partname); +- +- start = slices[j].start - slices[k].start; +- if (safe_sprintf(params, "%d:%d %" PRIu64, +- slices[k].major, +- slices[k].minor, +- start)) { +- fprintf(stderr, "params too small\n"); +- exit(1); +- } +- +- op = (dm_map_present(partname) ? +- DM_DEVICE_RELOAD : DM_DEVICE_CREATE); +- +- dm_addmap(op, partname, DM_TARGET, params, +- slices[j].size, ro, uuid, j+1, +- buf.st_mode & 0777, +- buf.st_uid, buf.st_gid, +- &cookie); +- +- if (op == DM_DEVICE_RELOAD) +- dm_simplecmd(DM_DEVICE_RESUME, +- partname, 1, +- &cookie); +- +- dm_devn(partname, &slices[j].major, +- &slices[j].minor); +- +- if (verbose) +- printf("add map %s : 0 %" PRIu64 " %s %s\n", +- partname, slices[j].size, +- DM_TARGET, params); +- c--; +- } +- /* Terminate loop */ +- if (d == c) +- break; +- } + + if (what == ADD) { + /* Skip code that removes devmappings for deleted partitions */ +Index: multipath-tools-120123/kpartx/kpartx.h +=================================================================== +--- multipath-tools-120123.orig/kpartx/kpartx.h ++++ multipath-tools-120123/kpartx/kpartx.h +@@ -24,7 +24,6 @@ + struct slice { + uint64_t start; + uint64_t size; +- int container; + int major; + int minor; + }; +Index: multipath-tools-120123/kpartx/sun.c +=================================================================== +--- multipath-tools-120123.orig/kpartx/sun.c ++++ multipath-tools-120123/kpartx/sun.c +@@ -62,8 +62,8 @@ int + read_sun_pt(int fd, struct slice all, struct slice *sp, int ns) { + struct sun_disk_label *l; + struct sun_raw_part *s; +- unsigned int offset = all.start, end; +- int i, j, n; ++ unsigned int offset = all.start; ++ int i, n; + char *bp; + + bp = getblock(fd, offset); +@@ -95,37 +95,6 @@ read_sun_pt(int fd, struct slice all, st + break; + } + } +- /* +- * Convention has it that the SUN disklabel will always have +- * the 'c' partition spanning the entire disk. +- * So we have to check for contained slices. +- */ +- for(i = 0; i < SUN_DISK_MAXPARTITIONS; i++) { +- if (sp[i].size == 0) +- continue; +- +- end = sp[i].start + sp[i].size; +- for(j = 0; j < SUN_DISK_MAXPARTITIONS; j ++) { +- if ( i == j ) +- continue; +- if (sp[j].size == 0) +- continue; +- +- if (sp[i].start < sp[j].start) { +- if (end > sp[j].start && +- end < sp[j].start + sp[j].size) { +- /* Invalid slice */ +- fprintf(stderr, +- "sun_disklabel: slice %d overlaps with %d\n", i , j); +- sp[i].size = 0; +- } +- } else { +- if (end <= sp[j].start + sp[j].size) { +- sp[i].container = j + 1; +- } +- } +- } +- } + return n; + } + diff --git a/multipath-tools/patches/0012-RH-udev-sync-support.patch b/multipath-tools/patches/0012-RH-udev-sync-support.patch deleted file mode 100644 index b30828c..0000000 --- a/multipath-tools/patches/0012-RH-udev-sync-support.patch +++ /dev/null @@ -1,362 +0,0 @@ ---- - kpartx/devmapper.c | 10 ++++++++-- - kpartx/devmapper.h | 4 ++-- - kpartx/kpartx.c | 22 ++++++++++++++++------ - libmultipath/config.h | 2 ++ - libmultipath/configure.c | 2 +- - libmultipath/devmapper.c | 29 +++++++++++++++++++---------- - libmultipath/devmapper.h | 8 +++++--- - multipath/main.c | 1 + - multipathd/main.c | 1 + - 9 files changed, 55 insertions(+), 24 deletions(-) - -Index: multipath-tools/kpartx/devmapper.c -=================================================================== ---- multipath-tools.orig/kpartx/devmapper.c -+++ multipath-tools/kpartx/devmapper.c -@@ -52,8 +52,10 @@ dm_prereq (char * str, int x, int y, int - } - - extern int --dm_simplecmd (int task, const char *name, int no_flush) { -+dm_simplecmd (int task, const char *name, int no_flush, uint32_t *cookie) { - int r = 0; -+ int udev_wait_flag = (task == DM_DEVICE_RESUME || -+ task == DM_DEVICE_REMOVE); - struct dm_task *dmt; - - if (!(dmt = dm_task_create(task))) -@@ -68,6 +70,8 @@ dm_simplecmd (int task, const char *name - if (no_flush) - dm_task_no_flush(dmt); - -+ if (udev_wait_flag && !dm_task_set_cookie(dmt, cookie, 0)) -+ goto out; - r = dm_task_run(dmt); - - out: -@@ -78,7 +82,7 @@ dm_simplecmd (int task, const char *name - extern int - dm_addmap (int task, const char *name, const char *target, - const char *params, uint64_t size, const char *uuid, int part, -- mode_t mode, uid_t uid, gid_t gid) { -+ mode_t mode, uid_t uid, gid_t gid, uint32_t *cookie) { - int r = 0; - struct dm_task *dmt; - char *prefixed_uuid = NULL; -@@ -113,6 +117,8 @@ dm_addmap (int task, const char *name, c - - dm_task_no_open_count(dmt); - -+ if (task == DM_DEVICE_CREATE && !dm_task_set_cookie(dmt, cookie, 0)) -+ goto addout; - r = dm_task_run (dmt); - - addout: -Index: multipath-tools/kpartx/kpartx.c -=================================================================== ---- multipath-tools.orig/kpartx/kpartx.c -+++ multipath-tools/kpartx/kpartx.c -@@ -82,7 +82,7 @@ initpts(void) - addpts("sun", read_sun_pt); - } - --static char short_opts[] = "ladgvp:t:"; -+static char short_opts[] = "ladgvp:t:s"; - - /* Used in gpt.c */ - int force_gpt=0; -@@ -96,6 +96,7 @@ usage(void) { - printf("\t-p set device name-partition number delimiter\n"); - printf("\t-g force GUID partition table (GPT)\n"); - printf("\t-v verbose\n"); -+ printf("\t-s sync mode. Don't return until the partitions are created\n"); - return 1; - } - -@@ -198,7 +199,9 @@ main(int argc, char **argv){ - int loopro = 0; - int hotplug = 0; - int loopcreated = 0; -+ int sync = 0; - struct stat buf; -+ uint32_t cookie = 0; - - initpts(); - init_crc32(); -@@ -251,11 +254,17 @@ main(int argc, char **argv){ - case 'd': - what = DELETE; - break; -+ case 's': -+ sync = 1; -+ break; - default: - usage(); - exit(1); - } - -+ if (!sync) -+ dm_udev_set_sync_support(0); -+ - if (dm_prereq(DM_TARGET, 0, 0, 0) && (what == ADD || what == DELETE)) { - fprintf(stderr, "device mapper prerequisites not met\n"); - exit(1); -@@ -413,8 +422,8 @@ main(int argc, char **argv){ - if (!slices[j].size || !dm_map_present(partname)) - continue; - -- if (!dm_simplecmd(DM_DEVICE_REMOVE, -- partname, 0)) { -+ if (!dm_simplecmd(DM_DEVICE_REMOVE, partname, -+ 0, &cookie)) { - r++; - continue; - } -@@ -463,14 +472,14 @@ main(int argc, char **argv){ - if (!dm_addmap(op, partname, DM_TARGET, params, - slices[j].size, uuid, j+1, - buf.st_mode & 0777, buf.st_uid, -- buf.st_gid)) { -+ buf.st_gid, &cookie)) { - fprintf(stderr, "create/reload failed on %s\n", - partname); - r++; - } - if (op == DM_DEVICE_RELOAD && -- !dm_simplecmd(DM_DEVICE_RESUME, -- partname, 1)) { -+ !dm_simplecmd(DM_DEVICE_RESUME, partname, -+ 1, &cookie)) { - fprintf(stderr, "resume failed on %s\n", - partname); - r++; -@@ -557,6 +566,7 @@ main(int argc, char **argv){ - if (n > 0) - break; - } -+ dm_udev_wait(cookie); - dm_lib_release(); - dm_lib_exit(); - -Index: multipath-tools/kpartx/devmapper.h -=================================================================== ---- multipath-tools.orig/kpartx/devmapper.h -+++ multipath-tools/kpartx/devmapper.h -@@ -3,9 +3,9 @@ - #define MKDEV(ma,mi) ((mi & 0xff) | (ma << 8) | ((mi & ~0xff) << 12)) - - int dm_prereq (char *, int, int, int); --int dm_simplecmd (int, const char *, int); -+int dm_simplecmd (int, const char *, int, uint32_t *); - int dm_addmap (int, const char *, const char *, const char *, uint64_t, -- const char *, int, mode_t, uid_t, gid_t); -+ const char *, int, mode_t, uid_t, gid_t, uint32_t *); - int dm_map_present (char *); - char * dm_mapname(int major, int minor); - dev_t dm_get_first_dep(char *devname); -Index: multipath-tools/libmultipath/config.h -=================================================================== ---- multipath-tools.orig/libmultipath/config.h -+++ multipath-tools/libmultipath/config.h -@@ -2,6 +2,7 @@ - #define _CONFIG_H - - #include <sys/types.h> -+#include <stdint.h> - - #define ORIGIN_DEFAULT 0 - #define ORIGIN_CONFIG 1 -@@ -84,6 +85,7 @@ struct config { - uid_t uid; - gid_t gid; - mode_t mode; -+ uint32_t cookie; - - char * dev; - char * sysfs_dir; -Index: multipath-tools/libmultipath/devmapper.c -=================================================================== ---- multipath-tools.orig/libmultipath/devmapper.c -+++ multipath-tools/libmultipath/devmapper.c -@@ -149,8 +149,10 @@ dm_prereq (void) - } - - static int --dm_simplecmd (int task, const char *name, int no_flush) { -+dm_simplecmd (int task, const char *name, int no_flush, int need_sync) { - int r = 0; -+ int udev_wait_flag = (need_sync && (task == DM_DEVICE_RESUME || -+ task == DM_DEVICE_REMOVE)); - struct dm_task *dmt; - - if (!(dmt = dm_task_create (task))) -@@ -166,6 +168,8 @@ dm_simplecmd (int task, const char *name - dm_task_no_flush(dmt); /* for DM_DEVICE_SUSPEND/RESUME */ - #endif - -+ if (udev_wait_flag && !dm_task_set_cookie(dmt, &conf->cookie, 0)) -+ goto out; - r = dm_task_run (dmt); - - out: -@@ -174,13 +178,13 @@ dm_simplecmd (int task, const char *name - } - - extern int --dm_simplecmd_flush (int task, const char *name) { -- return dm_simplecmd(task, name, 0); -+dm_simplecmd_flush (int task, const char *name, int needsync) { -+ return dm_simplecmd(task, name, 0, needsync); - } - - extern int - dm_simplecmd_noflush (int task, const char *name) { -- return dm_simplecmd(task, name, 1); -+ return dm_simplecmd(task, name, 1, 1); - } - - extern int -@@ -226,6 +230,9 @@ dm_addmap (int task, const char *target, - - dm_task_no_open_count(dmt); - -+ if (task == DM_DEVICE_CREATE && -+ !dm_task_set_cookie(dmt, &conf->cookie, 0)) -+ goto freeout; - r = dm_task_run (dmt); - - freeout: -@@ -249,7 +256,7 @@ _dm_addmap_create (struct multipath *mpp - if (!r && dm_map_present(mpp->alias)) { - condlog(3, "%s: failed to load map (a path might be in use)", - mpp->alias); -- dm_flush_map(mpp->alias); -+ dm_flush_map_nosync(mpp->alias); - } - return r; - } -@@ -529,7 +536,7 @@ out: - } - - extern int --dm_flush_map (const char * mapname) -+_dm_flush_map (const char * mapname, int need_sync) - { - int r; - -@@ -539,7 +546,7 @@ dm_flush_map (const char * mapname) - if (dm_type(mapname, TGT_MPATH) <= 0) - return 0; /* nothing to do */ - -- if (dm_remove_partmaps(mapname)) -+ if (dm_remove_partmaps(mapname, need_sync)) - return 1; - - if (dm_get_opencount(mapname)) { -@@ -547,7 +554,7 @@ dm_flush_map (const char * mapname) - return 1; - } - -- r = dm_simplecmd_flush(DM_DEVICE_REMOVE, mapname); -+ r = dm_simplecmd_flush(DM_DEVICE_REMOVE, mapname, need_sync); - - if (r) { - condlog(4, "multipath map %s removed", mapname); -@@ -883,7 +890,7 @@ bad: - } - - int --dm_remove_partmaps (const char * mapname) -+dm_remove_partmaps (const char * mapname, int need_sync) - { - struct dm_task *dmt; - struct dm_names *names; -@@ -946,7 +953,7 @@ dm_remove_partmaps (const char * mapname - */ - condlog(4, "partition map %s removed", - names->name); -- dm_simplecmd_flush(DM_DEVICE_REMOVE, names->name); -+ dm_simplecmd_flush(DM_DEVICE_REMOVE, names->name, need_sync); - } - - next = names->next; -@@ -1102,6 +1109,8 @@ dm_rename (char * old, char * new) - - dm_task_no_open_count(dmt); - -+ if (!dm_task_set_cookie(dmt, &conf->cookie, 0)) -+ goto out; - if (!dm_task_run(dmt)) - goto out; - -Index: multipath-tools/libmultipath/devmapper.h -=================================================================== ---- multipath-tools.orig/libmultipath/devmapper.h -+++ multipath-tools/libmultipath/devmapper.h -@@ -8,7 +8,7 @@ - - void dm_init(void); - int dm_prereq (void); --int dm_simplecmd_flush (int, const char *); -+int dm_simplecmd_flush (int, const char *, int); - int dm_simplecmd_noflush (int, const char *); - int dm_addmap_create (struct multipath *mpp); - int dm_addmap_create_ro (struct multipath *mpp); -@@ -18,7 +18,9 @@ int dm_map_present (const char *); - int dm_get_map(char *, unsigned long long *, char *); - int dm_get_status(char *, char *); - int dm_type(const char *, char *); --int dm_flush_map (const char *); -+int _dm_flush_map (const char *, int); -+#define dm_flush_map(mapname) _dm_flush_map(mapname, 1) -+#define dm_flush_map_nosync(mapname) _dm_flush_map(mapname, 0) - int dm_flush_maps (void); - int dm_fail_path(char * mapname, char * path); - int dm_reinstate_path(char * mapname, char * path); -@@ -31,7 +33,7 @@ int dm_get_maps (vector mp); - int dm_geteventnr (char *name); - int dm_get_minor (char *name); - char * dm_mapname(int major, int minor); --int dm_remove_partmaps (const char * mapname); -+int dm_remove_partmaps (const char * mapname, int need_sync); - int dm_get_uuid(char *name, char *uuid); - int dm_get_info (char * mapname, struct dm_info ** dmi); - int dm_rename (char * old, char * new); -Index: multipath-tools/multipath/main.c -=================================================================== ---- multipath-tools.orig/multipath/main.c -+++ multipath-tools/multipath/main.c -@@ -454,6 +454,7 @@ main (int argc, char *argv[]) - condlog(3, "restart multipath configuration process"); - - out: -+ dm_udev_wait(conf->cookie); - - sysfs_cleanup(); - dm_lib_release(); -Index: multipath-tools/multipathd/main.c -=================================================================== ---- multipath-tools.orig/multipathd/main.c -+++ multipath-tools/multipathd/main.c -@@ -1396,6 +1396,7 @@ child (void * param) - exit(1); - } - conf->daemon = 1; -+ dm_udev_set_sync_support(0); - /* - * fetch and configure both paths and multipaths - */ -Index: multipath-tools/libmultipath/configure.c -=================================================================== ---- multipath-tools.orig/libmultipath/configure.c -+++ multipath-tools/libmultipath/configure.c -@@ -373,7 +373,7 @@ domap (struct multipath * mpp) - if (!r) - r = dm_addmap_reload_ro(mpp); - if (r) -- r = dm_simplecmd_flush(DM_DEVICE_RESUME, mpp->alias); -+ r = dm_simplecmd_flush(DM_DEVICE_RESUME, mpp->alias, 1); - break; - - case ACT_RENAME: diff --git a/multipath-tools/patches/0013-RH-add-weighted_prio-prioritizer.patch b/multipath-tools/patches/0013-RH-add-weighted_prio-prioritizer.patch deleted file mode 100644 index 63b493b..0000000 --- a/multipath-tools/patches/0013-RH-add-weighted_prio-prioritizer.patch +++ /dev/null @@ -1,546 +0,0 @@ ---- - libmultipath/config.c | 10 ++ - libmultipath/config.h | 4 + - libmultipath/dict.c | 92 ++++++++++++++++++++--- - libmultipath/discovery.c | 56 +++++++------- - libmultipath/prio.h | 1 - libmultipath/prioritizers/Makefile | 3 - libmultipath/prioritizers/weighted.c | 139 +++++++++++++++++++++++++++++++++++ - libmultipath/prioritizers/weighted.h | 8 ++ - libmultipath/propsel.c | 11 ++ - libmultipath/structs.h | 1 - 10 files changed, 286 insertions(+), 39 deletions(-) - -Index: multipath-tools/libmultipath/config.c -=================================================================== ---- multipath-tools.orig/libmultipath/config.c -+++ multipath-tools/libmultipath/config.c -@@ -156,6 +156,9 @@ free_hwe (struct hwentry * hwe) - if (hwe->prio_name) - FREE(hwe->prio_name); - -+ if (hwe->prio_args) -+ FREE(hwe->prio_args); -+ - if (hwe->bl_product) - FREE(hwe->bl_product); - -@@ -195,6 +198,12 @@ free_mpe (struct mpentry * mpe) - if (mpe->alias) - FREE(mpe->alias); - -+ if (mpe->prio_name) -+ FREE(mpe->prio_name); -+ -+ if (mpe->prio_args) -+ FREE(mpe->prio_args); -+ - FREE(mpe); - } - -@@ -279,6 +288,7 @@ merge_hwe (struct hwentry * hwe1, struct - merge_str(selector); - merge_str(checker_name); - merge_str(prio_name); -+ merge_str(prio_args); - merge_str(bl_product); - merge_num(pgpolicy); - merge_num(pgfailback); -Index: multipath-tools/libmultipath/config.h -=================================================================== ---- multipath-tools.orig/libmultipath/config.h -+++ multipath-tools/libmultipath/config.h -@@ -25,6 +25,7 @@ struct hwentry { - char * selector; - char * checker_name; - char * prio_name; -+ char * prio_args; - - int pgpolicy; - int pgfailback; -@@ -43,6 +44,8 @@ struct mpentry { - char * alias; - char * getuid; - char * selector; -+ char * prio_name; -+ char * prio_args; - - int pgpolicy; - int pgfailback; -@@ -97,6 +100,7 @@ struct config { - char * hwhandler; - char * bindings_file; - char * prio_name; -+ char * prio_args; - char * checker_name; - - vector keywords; -Index: multipath-tools/libmultipath/dict.c -=================================================================== ---- multipath-tools.orig/libmultipath/dict.c -+++ multipath-tools/libmultipath/dict.c -@@ -139,11 +139,23 @@ def_getuid_callout_handler(vector strvec - static int - def_prio_handler(vector strvec) - { -- conf->prio_name = set_value(strvec); -+ char *name, *args; - -- if (!conf->prio_name) -+ name = set_value(strvec); -+ if (!name) - return 1; - -+ args = strpbrk(name, " \t"); -+ if (args) { -+ *args = 0; -+ while(*++args && isblank(*args)); /* Do nothing */ -+ } -+ -+ conf->prio_name = STRDUP(name); -+ if (args && *args) -+ conf->prio_args = STRDUP(args); -+ -+ FREE(name); - return 0; - } - -@@ -806,16 +818,27 @@ hw_handler_handler(vector strvec) - static int - hw_prio_handler(vector strvec) - { -+ char *name, *args; - struct hwentry * hwe = VECTOR_LAST_SLOT(conf->hwtable); - - if (!hwe) - return 1; - -- hwe->prio_name = set_value(strvec); -- -- if (!hwe->prio_name) -+ name = set_value(strvec); -+ if (!name) - return 1; - -+ args = strpbrk(name, " \t"); -+ if (args) { -+ *args = 0; -+ while(*++args && isblank(*args)); /* Do nothing */ -+ } -+ -+ hwe->prio_name = STRDUP(name); -+ if (args && *args) -+ hwe->prio_args = STRDUP(args); -+ -+ FREE(name); - return 0; - } - -@@ -1293,6 +1316,33 @@ mp_flush_on_last_del_handler(vector strv - return 0; - } - -+static int -+mp_prio_handler(vector strvec) -+{ -+ char *name, *args; -+ struct mpentry *mpe = VECTOR_LAST_SLOT(conf->mptable); -+ -+ if (!mpe) -+ return 1; -+ -+ name = set_value(strvec); -+ if (!name) -+ return 1; -+ -+ args = strpbrk(name, " \t"); -+ if (args) { -+ *args = 0; -+ while(*++args && isblank(*args)); /* Do nothing */ -+ } -+ -+ mpe->prio_name = STRDUP(name); -+ if (args && *args) -+ mpe->prio_args = STRDUP(args); -+ -+ FREE(name); -+ return 0; -+} -+ - /* - * config file keywords printing - */ -@@ -1472,6 +1522,20 @@ snprint_mp_flush_on_last_del (char * buf - } - - static int -+snprint_mp_prio (char * buff, int len, void * data) -+{ -+ struct mpentry * mpe = (struct mpentry *)data; -+ -+ if (!mpe->prio_name) -+ return 0; -+ if (!strcmp(mpe->prio_name, conf->prio_name) && !mpe->prio_args) -+ return 0; -+ if (!mpe->prio_args) -+ return snprintf(buff, len, "%s", mpe->prio_name); -+ return snprintf(buff, len, "%s %s", mpe->prio_name, mpe->prio_args); -+} -+ -+static int - snprint_hw_fast_io_fail(char * buff, int len, void * data) - { - struct hwentry * hwe = (struct hwentry *)data; -@@ -1545,10 +1609,11 @@ snprint_hw_prio (char * buff, int len, v - - if (!hwe->prio_name) - return 0; -- if (!strcmp(hwe->prio_name, conf->prio_name)) -+ if (!strcmp(hwe->prio_name, conf->prio_name) && !hwe->prio_args) - return 0; -- -- return snprintf(buff, len, "%s", hwe->prio_name); -+ if (!hwe->prio_args) -+ return snprintf(buff, len, "%s", hwe->prio_name); -+ return snprintf(buff, len, "%s %s", hwe->prio_name, hwe->prio_args); - } - - static int -@@ -1837,10 +1902,14 @@ snprint_def_prio (char * buff, int len, - return 0; - - if (strlen(conf->prio_name) == strlen(DEFAULT_PRIO) && -- !strcmp(conf->prio_name, DEFAULT_PRIO)) -+ !strcmp(conf->prio_name, DEFAULT_PRIO) && !conf->prio_args) - return 0; -- -- return snprintf(buff, len, "%s", conf->prio_name); -+ -+ if (!conf->prio_args) -+ return snprintf(buff, len, "%s", conf->prio_name); -+ else -+ return snprintf(buff, len, "%s %s", conf->prio_name, -+ conf->prio_args); - } - - static int -@@ -2146,5 +2215,6 @@ init_keywords(void) - install_keyword("mode", &mp_mode_handler, &snprint_mp_mode); - install_keyword("uid", &mp_uid_handler, &snprint_mp_uid); - install_keyword("gid", &mp_gid_handler, &snprint_mp_gid); -+ install_keyword("prio", &mp_prio_handler, &snprint_mp_prio); - install_sublevel_end(); - } -Index: multipath-tools/libmultipath/discovery.c -=================================================================== ---- multipath-tools.orig/libmultipath/discovery.c -+++ multipath-tools/libmultipath/discovery.c -@@ -800,30 +800,6 @@ get_state (struct path * pp, int daemon) - } - - static int --get_prio (struct path * pp) --{ -- if (!pp) -- return 0; -- -- if (!pp->prio) { -- select_prio(pp); -- if (!pp->prio) { -- condlog(3, "%s: no prio selected", pp->dev); -- return 1; -- } -- } -- pp->priority = prio_getprio(pp->prio, pp); -- if (pp->priority < 0) { -- condlog(3, "%s: %s prio error", pp->dev, prio_name(pp->prio)); -- pp->priority = PRIO_UNDEF; -- return 1; -- } -- condlog(3, "%s: %s prio = %u", -- pp->dev, prio_name(pp->prio), pp->priority); -- return 0; --} -- --static int - get_uid (struct path * pp) - { - char buff[CALLOUT_MAX_SIZE]; -@@ -850,6 +826,32 @@ get_uid (struct path * pp) - return 0; - } - -+static int -+get_prio (struct path * pp) -+{ -+ if (!pp) -+ return 0; -+ -+ if (!pp->prio) { -+ if (!strlen(pp->wwid)) -+ get_uid(pp); -+ select_prio(pp); -+ if (!pp->prio) { -+ condlog(3, "%s: no prio selected", pp->dev); -+ return 1; -+ } -+ } -+ pp->priority = prio_getprio(pp->prio, pp); -+ if (pp->priority < 0) { -+ condlog(3, "%s: %s prio error", pp->dev, prio_name(pp->prio)); -+ pp->priority = PRIO_UNDEF; -+ return 1; -+ } -+ condlog(3, "%s: %s prio = %u", -+ pp->dev, prio_name(pp->prio), pp->priority); -+ return 0; -+} -+ - extern int - pathinfo (struct path *pp, vector hwtable, int mask) - { -@@ -887,6 +889,9 @@ pathinfo (struct path *pp, vector hwtabl - goto blank; - } - -+ if (mask & DI_WWID && !strlen(pp->wwid)) -+ get_uid(pp); -+ - /* - * Retrieve path priority, even for PATH_DOWN paths if it has never - * been successfully obtained before. -@@ -895,9 +900,6 @@ pathinfo (struct path *pp, vector hwtabl - (pp->state != PATH_DOWN || pp->priority == PRIO_UNDEF)) - get_prio(pp); - -- if (mask & DI_WWID && !strlen(pp->wwid)) -- get_uid(pp); -- - return 0; - - blank: -Index: multipath-tools/libmultipath/prio.h -=================================================================== ---- multipath-tools.orig/libmultipath/prio.h -+++ multipath-tools/libmultipath/prio.h -@@ -24,6 +24,7 @@ - #define PRIO_NETAPP "netapp" - #define PRIO_RANDOM "random" - #define PRIO_RDAC "rdac" -+#define PRIO_WEIGHTED "weighted" - - /* - * Value used to mark the fact prio was not defined -Index: multipath-tools/libmultipath/prioritizers/Makefile -=================================================================== ---- multipath-tools.orig/libmultipath/prioritizers/Makefile -+++ multipath-tools/libmultipath/prioritizers/Makefile -@@ -13,7 +13,8 @@ LIBS = \ - libprioalua.so \ - libpriotpg_pref.so \ - libprionetapp.so \ -- libpriohds.so -+ libpriohds.so \ -+ libprioweighted.so \ - - CFLAGS += -I.. - -Index: multipath-tools/libmultipath/prioritizers/weighted.c -=================================================================== ---- /dev/null -+++ multipath-tools/libmultipath/prioritizers/weighted.c -@@ -0,0 +1,139 @@ -+/****************************************************************************** -+******************************************************************************* -+** -+** Copyright (C) 2009 Red Hat, Inc. All rights reserved. -+** -+** This copyrighted material is made available to anyone wishing to use, -+** modify, copy, or redistribute it subject to the terms and conditions -+** of the GNU General Public License v.2. -+** -+******************************************************************************* -+******************************************************************************/ -+ -+/* This prioritizer is based on a path's device name or its H:T:B:L. Both of -+ * these can change when the node is rebooted, and can differ from node to -+ * node. (i.e. there is no guarantee that sda will point to the same device -+ * after a reboot) If you use this prioritizer, it may be necessary to -+ * manually edit /etc/multipath.conf after any reboot -+ * -+ * Format: -+ * prio "weighted hbtl <regex> <prio> [<regex> <prio>] -+ * prio "weighted devname <regex> <prio> [<regex> <prio>] -+ * -+ * Examples: -+ * prio "weighted hbtl 4:* 2 3:.:.:. 1" -+ * prio "weighted devname sda 2 sde 1" -+ * -+ */ -+ -+#include <string.h> -+#include <prio.h> -+#include <debug.h> -+#include <regex.h> -+ -+#include "weighted.h" -+ -+#define DEFAULT_WEIGHTED_PRIO 0 -+ -+#define pp_weighted_log(prio, fmt, args...) \ -+ condlog(prio, "%s: weighted prio: " fmt, dev, ##args) -+ -+static char * -+next_str(char **str) -+{ -+ char *next; -+ -+ do { -+ next = strsep(str, " \t"); -+ } while (next && strcmp(next, "") == 0); -+ return next; -+} -+ -+ -+static int -+match (char *dev, char *target, char *regex_str, char *prio_str, -+ unsigned int *prio) -+{ -+ -+ regex_t regex; -+ int err, ret = 0; -+ char *errbuf; -+ size_t errbuf_size; -+ unsigned int prio_match; -+ -+ if (sscanf(prio_str, "%u", &prio_match) != 1) { -+ condlog(0, "%s: weighted prio: invalid prio '%s'", dev, -+ prio_str); -+ return 0; -+ } -+ err = regcomp(&regex, regex_str, REG_EXTENDED|REG_NOSUB); -+ if (err) { -+ errbuf_size = regerror(err, &regex, NULL, 0); -+ errbuf = malloc(errbuf_size); -+ regerror(err, &regex, errbuf, errbuf_size); -+ condlog(0, "%s: weighted prio: cannot compile regex '%s' : %s", -+ dev, regex_str, errbuf); -+ free(errbuf); -+ return 0; -+ } -+ if (regexec(&regex, target, 0, NULL, 0) == 0) { -+ *prio = prio_match; -+ ret = 1; -+ } -+ -+ regfree(&regex); -+ return ret; -+} -+ -+int -+prio_weighted(struct path * pp) -+{ -+ char target[FILE_NAME_SIZE]; -+ char *buff, *args, *ptr, *prio_str; -+ unsigned int prio = DEFAULT_WEIGHTED_PRIO; -+ char *regex_str = NULL; -+ int regex_size = 0; -+ -+ if (!pp->prio_args) -+ return DEFAULT_WEIGHTED_PRIO; -+ buff = args = strdup(pp->prio_args); -+ ptr = next_str(&args); -+ -+ if (strcasecmp(ptr, "hbtl") == 0) -+ sprintf(target, "%d:%d:%d:%d", pp->sg_id.host_no, -+ pp->sg_id.channel, pp->sg_id.scsi_id, pp->sg_id.lun); -+ else if (strcasecmp(ptr, "devname") == 0) -+ strcpy(target, pp->dev); -+ else { -+ condlog(0, "%s: weighted prio: invalid argument. Want 'hbtl' or 'devname'. Got '%s'", pp->dev, ptr); -+ goto out; -+ } -+ -+ while ((ptr = next_str(&args)) != NULL) { -+ -+ prio_str = next_str(&args); -+ if (!prio_str) { -+ condlog(0, "%s weighted prio: missing prio for regex '%s'", pp->dev, ptr); -+ goto out; -+ } -+ if (!regex_str || regex_size < strlen(ptr) + 3){ -+ regex_size = strlen(ptr) + 3; -+ regex_str = realloc(regex_str, regex_size); -+ } -+ sprintf(regex_str, "%s%s%s", (ptr[0] == '^')? "" : "^", -+ ptr, (ptr[strlen(ptr)-1] == '$')? "" : "$"); -+ if (match(pp->dev, target, regex_str, prio_str, &prio)) -+ break; -+ } -+out: -+ free(buff); -+ if (regex_str) -+ free(regex_str); -+ return prio; -+} -+ -+int -+getprio(struct path * pp) -+{ -+ return prio_weighted(pp); -+} -Index: multipath-tools/libmultipath/propsel.c -=================================================================== ---- multipath-tools.orig/libmultipath/propsel.c -+++ multipath-tools/libmultipath/propsel.c -@@ -312,14 +312,25 @@ select_getuid (struct path * pp) - extern int - select_prio (struct path * pp) - { -+ struct mpentry * mpe; -+ -+ if ((mpe = find_mpe(pp->wwid)) && mpe->prio_name) { -+ pp->prio = prio_lookup(mpe->prio_name); -+ pp->prio_args = mpe->prio_args; -+ condlog(3, "%s: prio = %s (LUN setting)", -+ pp->dev, mpe->prio_name); -+ return 0; -+ } - if (pp->hwe && pp->hwe->prio_name) { - pp->prio = prio_lookup(pp->hwe->prio_name); -+ pp->prio_args = pp->hwe->prio_args; - condlog(3, "%s: prio = %s (controller setting)", - pp->dev, pp->hwe->prio_name); - return 0; - } - if (conf->prio_name) { - pp->prio = prio_lookup(conf->prio_name); -+ pp->prio_args = conf->prio_args; - condlog(3, "%s: prio = %s (config file default)", - pp->dev, conf->prio_name); - return 0; -Index: multipath-tools/libmultipath/structs.h -=================================================================== ---- multipath-tools.orig/libmultipath/structs.h -+++ multipath-tools/libmultipath/structs.h -@@ -142,6 +142,7 @@ struct path { - int priority; - int pgindex; - char * getuid; -+ char * prio_args; - struct prio * prio; - struct checker checker; - struct multipath * mpp; -Index: multipath-tools/libmultipath/prioritizers/weighted.h -=================================================================== ---- /dev/null -+++ multipath-tools/libmultipath/prioritizers/weighted.h -@@ -0,0 +1,8 @@ -+#ifndef _WEIGHTED_H -+#define _WEIGHTED_H -+ -+#define PRIO_WEIGHTED "weighted" -+ -+int prio_weighted(struct path *pp); -+ -+#endif diff --git a/multipath-tools/patches/0013-RH-dont-remove-map-on-enomem.patch b/multipath-tools/patches/0013-RH-dont-remove-map-on-enomem.patch new file mode 100644 index 0000000..b7ee42c --- /dev/null +++ b/multipath-tools/patches/0013-RH-dont-remove-map-on-enomem.patch @@ -0,0 +1,18 @@ +--- + multipathd/main.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +Index: multipath-tools-120518/multipathd/main.c +=================================================================== +--- multipath-tools-120518.orig/multipathd/main.c ++++ multipath-tools-120518/multipathd/main.c +@@ -993,7 +993,8 @@ mpvec_garbage_collector (struct vectors + return; + + vector_foreach_slot (vecs->mpvec, mpp, i) { +- if (mpp && mpp->alias && !dm_map_present(mpp->alias)) { ++ if (mpp && mpp->alias && !dm_map_present(mpp->alias) && ++ errno != ENOMEM) { + condlog(2, "%s: remove dead map", mpp->alias); + remove_map_and_stop_waiter(mpp, vecs, 1); + i--; diff --git a/multipath-tools/patches/0014-RH-add-hp_tur-checker.patch b/multipath-tools/patches/0014-RH-add-hp_tur-checker.patch deleted file mode 100644 index 33dd43a..0000000 --- a/multipath-tools/patches/0014-RH-add-hp_tur-checker.patch +++ /dev/null @@ -1,231 +0,0 @@ ---- - libmultipath/checkers.h | 3 + - libmultipath/checkers/Makefile | 4 + - libmultipath/checkers/tur.c | 111 +++++++++++++++++++++++++++++++++++++++++ - multipath.conf.annotated | 5 + - 4 files changed, 121 insertions(+), 2 deletions(-) - -Index: multipath-tools/libmultipath/checkers.h -=================================================================== ---- multipath-tools.orig/libmultipath/checkers.h -+++ multipath-tools/libmultipath/checkers.h -@@ -60,6 +60,7 @@ enum path_check_state { - - #define DIRECTIO "directio" - #define TUR "tur" -+#define HP_TUR "hp_tur" - #define HP_SW "hp_sw" - #define RDAC "rdac" - #define EMC_CLARIION "emc_clariion" -@@ -91,6 +92,7 @@ enum path_check_state { - #define CHECKER_MSG_LEN 256 - #define CHECKER_DEV_LEN 256 - #define LIB_CHECKER_NAMELEN 256 -+#define WWID_SIZE 128 - - struct checker { - struct list_head node; -@@ -99,6 +101,7 @@ struct checker { - int disable; - char name[CHECKER_NAME_LEN]; - char message[CHECKER_MSG_LEN]; /* comm with callers */ -+ char wwid[WWID_SIZE]; /* LUN wwid */ - void * context; /* store for persistent data */ - void ** mpcontext; /* store for persistent data shared - multipath-wide. Use MALLOC if -Index: multipath-tools/libmultipath/checkers/Makefile -=================================================================== ---- multipath-tools.orig/libmultipath/checkers/Makefile -+++ multipath-tools/libmultipath/checkers/Makefile -@@ -8,6 +8,7 @@ LIBS= \ - libcheckcciss_tur.so \ - libcheckreadsector0.so \ - libchecktur.so \ -+ libcheckhp_tur.so \ - libcheckdirectio.so \ - libcheckemc_clariion.so \ - libcheckhp_sw.so \ -@@ -23,6 +24,9 @@ libcheckdirectio.so: libsg.o directio.o - libcheck%.so: libsg.o %.o - $(CC) $(SHARED_FLAGS) -o $@ $^ - -+hp_tur.o: tur.c -+ $(CC) $(CFLAGS) -DCHECK_WWID -c -o $@ $< -+ - install: - $(INSTALL_PROGRAM) -m 755 $(LIBS) $(DESTDIR)$(libdir) - -Index: multipath-tools/libmultipath/checkers/tur.c -=================================================================== ---- multipath-tools.orig/libmultipath/checkers/tur.c -+++ multipath-tools/libmultipath/checkers/tur.c -@@ -15,14 +15,101 @@ - - #include "checkers.h" - -+#include "../libmultipath/debug.h" - #include "../libmultipath/sg_include.h" - - #define TUR_CMD_LEN 6 - #define HEAVY_CHECK_COUNT 10 - -+#ifdef CHECK_WWID -+#define MSG_TUR_UP "HP tur checker reports path is up" -+#define MSG_TUR_DOWN "HP tur checker reports path is down" -+#define MSG_TUR_GHOST "HP tur checker reports path is in standby state" -+#define EVPD 0x01 -+#define PAGE_83 0x83 -+#define INQUIRY_CMD 0x12 -+#define INQUIRY_CMDLEN 6 -+#define SCSI_INQ_BUFF_LEN 96 -+#else - #define MSG_TUR_UP "tur checker reports path is up" - #define MSG_TUR_DOWN "tur checker reports path is down" - #define MSG_TUR_GHOST "tur checker reports path is in standby state" -+#endif -+ -+#ifdef CHECK_WWID -+static int -+do_inq(struct checker * c, char * wwid) -+{ -+ int ret = -1; -+ unsigned char inq_cmd[INQUIRY_CMDLEN] = -+ {INQUIRY_CMD, EVPD, PAGE_83, 0, SCSI_INQ_BUFF_LEN, 0 }; -+ unsigned char sense_buffer[32]; -+ unsigned char resp_buffer[SCSI_INQ_BUFF_LEN]; -+ char *pbuff; -+ -+ int m,k; -+ int retry_tur = 5; -+ struct sg_io_hdr io_hdr; -+ -+retry: -+ memset(resp_buffer, 0, sizeof(resp_buffer)); -+ memset(&io_hdr, 0, sizeof(struct sg_io_hdr)); -+ -+ io_hdr.interface_id = 'S'; -+ io_hdr.cmd_len = sizeof(inq_cmd); -+ io_hdr.mx_sb_len = sizeof(sense_buffer); -+ io_hdr.dxfer_direction = -3; // Data transfer from the device. -+ io_hdr.dxfer_len = sizeof(resp_buffer); -+ io_hdr.dxferp = (unsigned char *)resp_buffer; -+ io_hdr.cmdp = inq_cmd; -+ io_hdr.sbp = sense_buffer; -+ io_hdr.timeout = 60; // IOCTL timeout value. -+ -+ if (ioctl(c->fd, SG_IO, &io_hdr) < 0) { -+ condlog(0, "SG_IO ioctl failed: %s", strerror(errno)); -+ return ret; -+ } -+ if (io_hdr.info & SG_INFO_OK_MASK){ -+ int key = 0, asc, ascq; -+ -+ if (io_hdr.host_status == DID_BUS_BUSY || -+ io_hdr.host_status == DID_ERROR || -+ io_hdr.host_status == DID_TRANSPORT_DISRUPTED) { -+ if (--retry_tur) -+ goto retry; -+ } -+ if (io_hdr.sb_len_wr > 3) { -+ if (io_hdr.sbp[0] == 0x72 || io_hdr.sbp[0] == 0x73) { -+ key = io_hdr.sbp[1] & 0x0f; -+ asc = io_hdr.sbp[2]; -+ ascq = io_hdr.sbp[3]; -+ } else if (io_hdr.sb_len_wr > 13 && -+ ((io_hdr.sbp[0] & 0x7f) == 0x70 || -+ (io_hdr.sbp[0] & 0x7f) == 0x71)) { -+ key = io_hdr.sbp[2] & 0x0f; -+ asc = io_hdr.sbp[12]; -+ ascq = io_hdr.sbp[13]; -+ } -+ } -+ if (key == 0x6) { -+ /* Unit Attention, retry */ -+ if (--retry_tur) -+ goto retry; -+ } -+ return ret; -+ } -+ -+ pbuff = (char *) resp_buffer; -+ -+ wwid[0] = '3'; -+ for (m = 8, k = 1; m < 11; ++m, k+=2) -+ sprintf(&wwid[k], "%02x", (unsigned int)pbuff[m] & 0xff); -+ for (m = 11; m < 24; ++m, k+=2) -+ sprintf(&wwid[k], "%02x", (unsigned int)pbuff[m] & 0xff); -+ -+ return (ret = 0); -+} -+#endif - - struct tur_checker_context { - void * dummy; -@@ -30,6 +117,9 @@ struct tur_checker_context { - - int libcheck_init (struct checker * c) - { -+#ifdef CHECK_WWID -+ memset(c->wwid, 0, WWID_SIZE); -+#endif - return 0; - } - -@@ -45,6 +135,9 @@ libcheck_check (struct checker * c) - unsigned char turCmdBlk[TUR_CMD_LEN] = { 0x00, 0, 0, 0, 0, 0 }; - unsigned char sense_buffer[32]; - int retry_tur = 5; -+#ifdef CHECK_WWID -+ char wwid[WWID_SIZE]; -+#endif - - retry: - memset(&io_hdr, 0, sizeof (struct sg_io_hdr)); -@@ -110,6 +203,24 @@ libcheck_check (struct checker * c) - MSG(c, MSG_TUR_DOWN); - return PATH_DOWN; - } -+#ifdef CHECK_WWID -+ if (!do_inq(c, wwid)) { -+ -+ if(!strcmp(c->wwid, "\0")) { -+ strcpy(c->wwid, wwid); -+ goto up; -+ } -+ -+ if (strcmp(c->wwid , wwid)) { -+ condlog(0, -+ "hp_tur: Lun collided. new_wwid %s old_wwid %s", -+ wwid, c->wwid); -+ MSG(c, MSG_TUR_DOWN); -+ return PATH_DOWN; -+ } -+ } -+up: -+#endif - MSG(c, MSG_TUR_UP); - return PATH_UP; - } -Index: multipath-tools/multipath.conf.annotated -=================================================================== ---- multipath-tools.orig/multipath.conf.annotated -+++ multipath-tools/multipath.conf.annotated -@@ -86,7 +86,8 @@ - # # name : path_checker, checker - # # scope : multipath & multipathd - # # desc : the default method used to determine the paths' state --# # values : readsector0|tur|emc_clariion|hp_sw|directio|rdac|cciss_tur -+# # values : readsector0|tur|emc_clariion|hp_sw|directio|rdac| -+# cciss_tur|hp_tur - # # default : directio - # # - # path_checker directio -@@ -456,7 +457,7 @@ - # # scope : multipathd - # # desc : path checking alorithm to use to check path state - # # values : readsector0|tur|emc_clariion|hp_sw|directio|rdac| --# # cciss_tur -+# # cciss_tur|hp_tur - # # - # path_checker directio - # diff --git a/multipath-tools/patches/0014-RH-deprecate-uid-gid-mode.patch b/multipath-tools/patches/0014-RH-deprecate-uid-gid-mode.patch new file mode 100644 index 0000000..9270d9d --- /dev/null +++ b/multipath-tools/patches/0014-RH-deprecate-uid-gid-mode.patch @@ -0,0 +1,90 @@ +--- + multipath.conf.annotated | 53 ----------------------------------------------- + multipath.conf.synthetic | 3 -- + 2 files changed, 56 deletions(-) + +Index: multipath-tools-120123/multipath.conf.annotated +=================================================================== +--- multipath-tools-120123.orig/multipath.conf.annotated ++++ multipath-tools-120123/multipath.conf.annotated +@@ -186,32 +186,6 @@ + # user_friendly_names no + # + # # +-# # name : mode +-# # scope : multipath & multipathd +-# # desc : The mode to use for the multipath device nodes, in octal. +-# # values : 0000 - 0777 +-# # default : determined by the process +-# mode 0644 +-# +-# # +-# # name : uid +-# # scope : multipath & multipathd +-# # desc : The user id to use for the multipath device nodes. You +-# # may use either the numeric or symbolic uid +-# # values : <user_id> +-# # default : determined by the process +-# uid 0 +-# +-# # +-# # name : gid +-# # scope : multipath & multipathd +-# # desc : The group id to user for the multipath device nodes. You +-# # may use either the numeric or symbolic gid +-# # values : <group_id> +-# # default : determined by the process +-# gid disk +-# +-# # + # # name : checker_timeout + # # scope : multipath & multipathd + # # desc : The timeout to use for path checkers that issue scsi +@@ -388,33 +362,6 @@ + # # + # flush_on_last_del yes + # +-# # +-# # name : mode +-# # scope : multipath & multipathd +-# # desc : The mode to use for the multipath device nodes, in +-# # octal. +-# # values : 0000 - 0777 +-# # default : determined by the process +-# mode 0644 +-# +-# # +-# # name : uid +-# # scope : multipath & multipathd +-# # desc : The user id to use for the multipath device nodes. +-# # You may use either the numeric or symbolic uid +-# # values : <user_id> +-# # default : determined by the process +-# uid 0 +-# +-# # +-# # name : gid +-# # scope : multipath & multipathd +-# # desc : The group id to user for the multipath device nodes. +-# # You may use either the numeric or symbolic gid +-# # values : <group_id> +-# # default : determined by the process +-# gid 0 +-# + # } + # multipath { + # wwid 1DEC_____321816758474 +Index: multipath-tools-120123/multipath.conf.synthetic +=================================================================== +--- multipath-tools-120123.orig/multipath.conf.synthetic ++++ multipath-tools-120123/multipath.conf.synthetic +@@ -18,9 +18,6 @@ + # no_path_retry fail + # queue_without_daemon no + # user_friendly_names no +-# mode 644 +-# uid 0 +-# gid disk + #} + #blacklist { + # wwid 26353900f02796769 diff --git a/multipath-tools/patches/0015-RH-add-multipathd-count-paths-cmd.patch b/multipath-tools/patches/0015-RH-add-multipathd-count-paths-cmd.patch deleted file mode 100644 index 87826ef..0000000 --- a/multipath-tools/patches/0015-RH-add-multipathd-count-paths-cmd.patch +++ /dev/null @@ -1,150 +0,0 @@ -Index: multipath-tools/libmultipath/uevent.c -=================================================================== ---- multipath-tools.orig/libmultipath/uevent.c -+++ multipath-tools/libmultipath/uevent.c -@@ -52,6 +52,12 @@ pthread_mutex_t uevc_lock, *uevc_lockp = - pthread_cond_t uev_cond, *uev_condp = &uev_cond; - uev_trigger *my_uev_trigger; - void * my_trigger_data; -+int servicing_uev; -+ -+int is_uevent_busy(void) -+{ -+ return (uevqhp != NULL || servicing_uev); -+} - - static struct uevent * alloc_uevent (void) - { -@@ -96,7 +102,9 @@ uevq_thread(void * et) - - while (1) { - pthread_mutex_lock(uevc_lockp); -+ servicing_uev = 0; - pthread_cond_wait(uev_condp, uevc_lockp); -+ servicing_uev = 1; - pthread_mutex_unlock(uevc_lockp); - - service_uevq(); -Index: multipath-tools/libmultipath/uevent.h -=================================================================== ---- multipath-tools.orig/libmultipath/uevent.h -+++ multipath-tools/libmultipath/uevent.h -@@ -17,3 +17,4 @@ struct uevent { - - int uevent_listen(int (*store_uev)(struct uevent *, void * trigger_data), - void * trigger_data); -+int is_uevent_busy(void); -Index: multipath-tools/multipathd/cli.c -=================================================================== ---- multipath-tools.orig/multipathd/cli.c -+++ multipath-tools/multipathd/cli.c -@@ -174,6 +174,7 @@ load_keys (void) - r += add_key(keys, "devices", DEVICES, 0); - r += add_key(keys, "format", FMT, 1); - r += add_key(keys, "wildcards", WILDCARDS, 0); -+ r += add_key(keys, "count", COUNT, 0); - r += add_key(keys, "quit", QUIT, 0); - r += add_key(keys, "exit", QUIT, 0); - -@@ -443,6 +444,7 @@ cli_init (void) { - add_handler(RESTOREQ+MAPS, NULL); - add_handler(REINSTATE+PATH, NULL); - add_handler(FAIL+PATH, NULL); -+ add_handler(COUNT+PATHS, NULL); - add_handler(QUIT, NULL); - - return 0; -Index: multipath-tools/multipathd/cli_handlers.h -=================================================================== ---- multipath-tools.orig/multipathd/cli_handlers.h -+++ multipath-tools/multipathd/cli_handlers.h -@@ -25,5 +25,6 @@ int cli_restore_all_queueing(void * v, c - int cli_suspend(void * v, char ** reply, int * len, void * data); - int cli_resume(void * v, char ** reply, int * len, void * data); - int cli_reinstate(void * v, char ** reply, int * len, void * data); -+int cli_count_paths(void * v, char ** reply, int * len, void * data); - int cli_fail(void * v, char ** reply, int * len, void * data); - int cli_quit(void * v, char ** reply, int * len, void * data); -Index: multipath-tools/multipathd/main.c -=================================================================== ---- multipath-tools.orig/multipathd/main.c -+++ multipath-tools/multipathd/main.c -@@ -768,6 +768,7 @@ uxlsnrloop (void * ap) - set_handler_callback(RESTOREQ+MAP, cli_restore_queueing); - set_handler_callback(DISABLEQ+MAPS, cli_disable_all_queueing); - set_handler_callback(RESTOREQ+MAPS, cli_restore_all_queueing); -+ set_handler_callback(COUNT+PATHS, cli_count_paths); - set_handler_callback(QUIT, cli_quit); - - umask(077); -Index: multipath-tools/multipathd/cli.h -=================================================================== ---- multipath-tools.orig/multipathd/cli.h -+++ multipath-tools/multipathd/cli.h -@@ -23,6 +23,7 @@ enum { - __BLACKLIST, - __DEVICES, - __FMT, -+ __COUNT, - __WILDCARDS, - __QUIT, - }; -@@ -51,6 +52,7 @@ enum { - #define BLACKLIST (1 << __BLACKLIST) - #define DEVICES (1 << __DEVICES) - #define FMT (1 << __FMT) -+#define COUNT (1 << __COUNT) - #define WILDCARDS (1 << __WILDCARDS) - #define QUIT (1 << __QUIT) - -Index: multipath-tools/multipathd/cli_handlers.c -=================================================================== ---- multipath-tools.orig/multipathd/cli_handlers.c -+++ multipath-tools/multipathd/cli_handlers.c -@@ -18,6 +18,29 @@ - - #include "main.h" - #include "cli.h" -+#include "uevent.h" -+ -+int -+count_paths(char **r, int *l, struct vectors *vecs) -+{ -+ int i, len; -+ struct path *pp; -+ char * reply; -+ unsigned int maxlen = INITIAL_REPLY_LEN; -+ int monitored_count = 0; -+ -+ reply = MALLOC(maxlen); -+ if (!reply) -+ return 1; -+ vector_foreach_slot(vecs->pathvec, pp, i) -+ if (pp->fd != -1) -+ monitored_count++; -+ len = sprintf(reply, "Paths: %d\nBusy: %s\n", monitored_count, -+ is_uevent_busy()? "True" : "False"); -+ *r = reply; -+ *l = len + 1; -+ return 0; -+} - - int - show_paths (char ** r, int * len, struct vectors * vecs, char * style) -@@ -176,6 +199,16 @@ cli_list_config (void * v, char ** reply - } - - int -+cli_count_paths (void * v, char ** reply, int * len, void * data) -+{ -+ struct vectors * vecs = (struct vectors *)data; -+ -+ condlog(3, "count paths (operator)"); -+ -+ return count_paths(reply, len, vecs); -+} -+ -+int - cli_list_paths (void * v, char ** reply, int * len, void * data) - { - struct vectors * vecs = (struct vectors *)data; diff --git a/multipath-tools/patches/0015-RH-use-sync-support.patch b/multipath-tools/patches/0015-RH-use-sync-support.patch new file mode 100644 index 0000000..c5dee9d --- /dev/null +++ b/multipath-tools/patches/0015-RH-use-sync-support.patch @@ -0,0 +1,17 @@ +--- + libmultipath/devmapper.c | 2 ++ + 1 file changed, 2 insertions(+) + +Index: multipath-tools-120518/libmultipath/devmapper.c +=================================================================== +--- multipath-tools-120518.orig/libmultipath/devmapper.c ++++ multipath-tools-120518/libmultipath/devmapper.c +@@ -1272,6 +1272,8 @@ dm_rename (char * old, char * new) + goto out; + if (!dm_task_run(dmt)) + goto out; ++ if (conf->daemon) ++ dm_task_update_nodes(); + + r = 1; + out: diff --git a/multipath-tools/patches/0016-RH-change-configs.patch b/multipath-tools/patches/0016-RH-change-configs.patch new file mode 100644 index 0000000..7942ea8 --- /dev/null +++ b/multipath-tools/patches/0016-RH-change-configs.patch @@ -0,0 +1,541 @@ +--- + libmultipath/config.c | 1 + libmultipath/hwtable.c | 65 ------------------------------------------------- + 2 files changed, 1 insertion(+), 65 deletions(-) + +Index: multipath-tools-120613/libmultipath/config.c +=================================================================== +--- multipath-tools-120613.orig/libmultipath/config.c ++++ multipath-tools-120613/libmultipath/config.c +@@ -515,6 +515,7 @@ load_config (char * file) + conf->checkint = DEFAULT_CHECKINT; + conf->max_checkint = MAX_CHECKINT(conf->checkint); + conf->find_multipaths = DEFAULT_FIND_MULTIPATHS; ++ conf->fast_io_fail = 5; + + /* + * preload default hwtable +Index: multipath-tools-120613/libmultipath/hwtable.c +=================================================================== +--- multipath-tools-120613.orig/libmultipath/hwtable.c ++++ multipath-tools-120613/libmultipath/hwtable.c +@@ -28,7 +28,6 @@ static struct hwentry default_hw[] = { + .product = "Compellent Vol", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = MULTIBUS, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -50,7 +49,6 @@ static struct hwentry default_hw[] = { + .product = "Xserve RAID ", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = MULTIBUS, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -72,7 +70,6 @@ static struct hwentry default_hw[] = { + .product = "VV", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = MULTIBUS, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -88,7 +85,6 @@ static struct hwentry default_hw[] = { + .product = "HSG80", + .features = "1 queue_if_no_path", + .hwhandler = "1 hp_sw", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -104,7 +100,6 @@ static struct hwentry default_hw[] = { + .product = "A6189A", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = MULTIBUS, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -121,7 +116,6 @@ static struct hwentry default_hw[] = { + .product = "(MSA|HSV)1.0.*", + .features = "1 queue_if_no_path", + .hwhandler = "1 hp_sw", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -137,7 +131,6 @@ static struct hwentry default_hw[] = { + .product = "MSA VOLUME", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -153,7 +146,6 @@ static struct hwentry default_hw[] = { + .product = "HSV1[01]1|HSV2[01]0|HSV300|HSV4[05]0", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -169,7 +161,6 @@ static struct hwentry default_hw[] = { + .product = "MSA2[02]12fc|MSA2012i", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = MULTIBUS, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -185,7 +176,6 @@ static struct hwentry default_hw[] = { + .product = "MSA2012sa|MSA23(12|24)(fc|i|sa)|MSA2000s VOLUME", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -202,7 +192,6 @@ static struct hwentry default_hw[] = { + .product = "HSVX700", + .features = DEFAULT_FEATURES, + .hwhandler = "1 alua", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -219,7 +208,6 @@ static struct hwentry default_hw[] = { + .product = "LOGICAL VOLUME.*", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = MULTIBUS, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -236,7 +224,6 @@ static struct hwentry default_hw[] = { + .product = "P2000 G3 FC|P2000G3 FC/iSCSI|P2000 G3 SAS|P2000 G3 iSCSI", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -258,7 +245,6 @@ static struct hwentry default_hw[] = { + .product = "SAN DataDirector", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = MULTIBUS, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -280,7 +266,6 @@ static struct hwentry default_hw[] = { + .product = "SYMMETRIX", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = MULTIBUS, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -297,7 +282,6 @@ static struct hwentry default_hw[] = { + .bl_product = "LUNZ", + .features = "1 queue_if_no_path", + .hwhandler = "1 emc", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -314,7 +298,6 @@ static struct hwentry default_hw[] = { + .bl_product = "LUNZ", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = MULTIBUS, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -336,7 +319,6 @@ static struct hwentry default_hw[] = { + .product = "CentricStor", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_SERIAL, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -352,7 +334,6 @@ static struct hwentry default_hw[] = { + .product = "ETERNUS_DX(L|400|8000)", + .features = "1 queue_if_no_path", + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -373,7 +354,6 @@ static struct hwentry default_hw[] = { + .product = "OPEN-.*", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = MULTIBUS, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -389,7 +369,6 @@ static struct hwentry default_hw[] = { + .product = "DF.*", + .features = "1 queue_if_no_path", + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -411,7 +390,6 @@ static struct hwentry default_hw[] = { + .product = "ProFibre 4000R", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = MULTIBUS, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -429,7 +407,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = "1 queue_if_no_path", + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -447,7 +424,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = "1 queue_if_no_path", + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -465,7 +441,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = "1 queue_if_no_path", + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -483,7 +458,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = DEFAULT_FEATURES, + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -500,7 +474,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = "2 pg_init_retries 50", + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -518,7 +491,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = DEFAULT_FEATURES, + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -536,7 +508,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = DEFAULT_FEATURES, + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -554,7 +525,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = DEFAULT_FEATURES, + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -572,7 +542,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = DEFAULT_FEATURES, + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -589,7 +558,6 @@ static struct hwentry default_hw[] = { + .product = "^3542", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_SERIAL, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -606,7 +574,6 @@ static struct hwentry default_hw[] = { + .product = "^2105800", + .features = "1 queue_if_no_path", + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_SERIAL, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -623,7 +590,6 @@ static struct hwentry default_hw[] = { + .product = "^2105F20", + .features = "1 queue_if_no_path", + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_SERIAL, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -640,7 +606,6 @@ static struct hwentry default_hw[] = { + .product = "^1750500", + .features = "1 queue_if_no_path", + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -657,7 +622,6 @@ static struct hwentry default_hw[] = { + .product = "^2107900", + .features = "1 queue_if_no_path", + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = MULTIBUS, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -674,7 +638,6 @@ static struct hwentry default_hw[] = { + .product = "^2145", + .features = "1 queue_if_no_path", + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -693,7 +656,6 @@ static struct hwentry default_hw[] = { + .uid_attribute = "ID_UID", + .features = "1 queue_if_no_path", + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = MULTIBUS, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -712,7 +674,6 @@ static struct hwentry default_hw[] = { + .uid_attribute = "ID_UID", + .features = "1 queue_if_no_path", + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = MULTIBUS, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -729,7 +690,6 @@ static struct hwentry default_hw[] = { + .product = "^IPR.*", + .features = "1 queue_if_no_path", + .hwhandler = "1 alua", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -746,7 +706,6 @@ static struct hwentry default_hw[] = { + .product = "1820N00", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -763,7 +722,6 @@ static struct hwentry default_hw[] = { + .product = "2810XIV", + .features = "1 queue_if_no_path", + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = MULTIBUS, + .pgfailback = 15, + .rr_weight = RR_WEIGHT_NONE, +@@ -786,7 +744,6 @@ static struct hwentry default_hw[] = { + .product = "VDASD", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = MULTIBUS, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -803,7 +760,6 @@ static struct hwentry default_hw[] = { + .product = "3303 NVDISK", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = FAILOVER, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -820,7 +776,6 @@ static struct hwentry default_hw[] = { + .product = "NVDISK", + .features = DEFAULT_FEATURES, + .hwhandler = "1 alua", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -838,7 +793,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = "2 pg_init_retries 50", + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -856,7 +810,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = "2 pg_init_retries 50", + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -874,7 +827,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = "2 pg_init_retries 50", + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -892,7 +844,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = "2 pg_init_retries 50", + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -914,7 +865,6 @@ static struct hwentry default_hw[] = { + .product = "LUN.*", + .features = "3 queue_if_no_path pg_init_retries 50", + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .flush_on_last_del = FLUSH_ENABLED, +@@ -936,7 +886,6 @@ static struct hwentry default_hw[] = { + .product = "COMSTAR", + .features = "1 queue_if_no_path", + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_SERIAL, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -957,7 +906,6 @@ static struct hwentry default_hw[] = { + .product = "Nseries.*", + .features = "1 queue_if_no_path", + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -978,7 +926,6 @@ static struct hwentry default_hw[] = { + .product = "Axiom.*", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -1001,7 +948,6 @@ static struct hwentry default_hw[] = { + .product = "TP9[13]00", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = MULTIBUS, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -1018,7 +964,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = DEFAULT_FEATURES, + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -1035,7 +980,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = "2 pg_init_retries 50", + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -1052,7 +996,6 @@ static struct hwentry default_hw[] = { + .product = "DISK ARRAY", + .features = DEFAULT_FEATURES, + .hwhandler = "1 alua", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -1075,7 +1018,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = DEFAULT_FEATURES, + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -1097,7 +1039,6 @@ static struct hwentry default_hw[] = { + .product = "(StorEdge 3510|T4)", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = MULTIBUS, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -1113,7 +1054,6 @@ static struct hwentry default_hw[] = { + .product = "FC2502", + .features = DEFAULT_FEATURES, + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -1135,7 +1075,6 @@ static struct hwentry default_hw[] = { + .product = "RAIGE VOLUME", + .features = "1 queue_if_no_path", + .hwhandler = DEFAULT_HWHANDLER, +- .selector = DEFAULT_SELECTOR, + .pgpolicy = MULTIBUS, + .pgfailback = FAILBACK_UNDEF, + .rr_weight = RR_WEIGHT_NONE, +@@ -1151,7 +1090,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = DEFAULT_FEATURES, + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -1169,7 +1107,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = DEFAULT_FEATURES, + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -1187,7 +1124,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = "2 pg_init_retries 50", + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, +@@ -1204,7 +1140,6 @@ static struct hwentry default_hw[] = { + .bl_product = "Universal Xport", + .features = DEFAULT_FEATURES, + .hwhandler = "1 rdac", +- .selector = DEFAULT_SELECTOR, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = -FAILBACK_IMMEDIATE, + .rr_weight = RR_WEIGHT_NONE, diff --git a/multipath-tools/patches/0016-RHBZ-554561-fix-init-error-msg.patch b/multipath-tools/patches/0016-RHBZ-554561-fix-init-error-msg.patch deleted file mode 100644 index ae0ae70..0000000 --- a/multipath-tools/patches/0016-RHBZ-554561-fix-init-error-msg.patch +++ /dev/null @@ -1,23 +0,0 @@ ---- - multipathd/multipathd.init.redhat | 8 +++++--- - 1 file changed, 5 insertions(+), 3 deletions(-) - -Index: multipath-tools/multipathd/multipathd.init.redhat -=================================================================== ---- multipath-tools.orig/multipathd/multipathd.init.redhat -+++ multipath-tools/multipathd/multipathd.init.redhat -@@ -75,9 +75,11 @@ start() { - - stop() { - root_dev=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $1; }}' /etc/mtab) -- dm_num=`dmsetup info -c --noheadings -o minor $root_dev` -- root_dm_device="dm-$dm_num" -- [ -d $syspath/$root_dm_device ] && teardown_slaves $syspath/$root_dm_device -+ dm_num=`dmsetup info -c --noheadings -o minor $root_dev 2> /dev/null` -+ if [ $? -eq 0 ]; then -+ root_dm_device="dm-$dm_num" -+ [ -d $syspath/$root_dm_device ] && teardown_slaves $syspath/$root_dm_device -+ fi - - echo -n $"Stopping $prog daemon: " - killproc $DAEMON diff --git a/multipath-tools/patches/0017-RHBZ-554592-man-page-note.patch b/multipath-tools/patches/0017-RHBZ-554592-man-page-note.patch deleted file mode 100644 index 9ebaf92..0000000 --- a/multipath-tools/patches/0017-RHBZ-554592-man-page-note.patch +++ /dev/null @@ -1,17 +0,0 @@ ---- - multipath/multipath.8 | 2 ++ - 1 file changed, 2 insertions(+) - -Index: multipath-tools/multipath/multipath.8 -=================================================================== ---- multipath-tools.orig/multipath/multipath.8 -+++ multipath-tools/multipath/multipath.8 -@@ -75,6 +75,8 @@ is in. - is in the /dev/sdb (as shown by udev in the $DEVNAME variable) or major:minor format. - .I device - may alternatively be a multipath mapname -+.SH NOTES -+a map may be unused if, eg, the file system on it is not mounted or there are no open file descriptors against the device file, as in a raw device. - .SH "SEE ALSO" - .BR udev (8), - .BR dmsetup (8) diff --git a/multipath-tools/patches/0018-RHBZ-554596-SUN-6540-config.patch b/multipath-tools/patches/0018-RHBZ-554596-SUN-6540-config.patch deleted file mode 100644 index e3296d3..0000000 --- a/multipath-tools/patches/0018-RHBZ-554596-SUN-6540-config.patch +++ /dev/null @@ -1,57 +0,0 @@ ---- - libmultipath/hwtable.c | 16 ++++++++++++++++ - multipath.conf.defaults | 16 ++++++++++++++++ - 2 files changed, 32 insertions(+) - -Index: multipath-tools/libmultipath/hwtable.c -=================================================================== ---- multipath-tools.orig/libmultipath/hwtable.c -+++ multipath-tools/libmultipath/hwtable.c -@@ -959,6 +959,22 @@ static struct hwentry default_hw[] = { - .checker_name = RDAC, - .prio_name = PRIO_RDAC, - }, -+ { -+ .vendor = "STK", -+ .product = "FLEXLINE 380", -+ .bl_product = "Universal Xport", -+ .getuid = DEFAULT_GETUID, -+ .features = DEFAULT_FEATURES, -+ .hwhandler = "1 rdac", -+ .selector = DEFAULT_SELECTOR, -+ .pgpolicy = GROUP_BY_PRIO, -+ .pgfailback = -FAILBACK_IMMEDIATE, -+ .rr_weight = RR_WEIGHT_NONE, -+ .no_path_retry = NO_PATH_RETRY_QUEUE, -+ .minio = DEFAULT_MINIO, -+ .checker_name = RDAC, -+ .prio_name = PRIO_RDAC, -+ }, - /* - * EOL - */ -Index: multipath-tools/multipath.conf.defaults -=================================================================== ---- multipath-tools.orig/multipath.conf.defaults -+++ multipath-tools/multipath.conf.defaults -@@ -571,4 +571,20 @@ - # path_checker rdac - # prio rdac - # } -+# device { -+# vendor "STK" -+# product "FLEXLINE 380" -+# product_blacklist "Universal Xport" -+# getuid_callout "/lib/udev/scsi_id --whitelisted --device=/dev/%n" -+# features "0" -+# hardware_handler "1 rdac" -+# path_selector "round-robin 0" -+# path_grouping_policy group_by_prio -+# failback immediate -+# rr_weight uniform -+# no_path_retry queue -+# rr_min_io 1000 -+# path_checker rdac -+# prio rdac -+# } - #} diff --git a/multipath-tools/patches/0019-RHBZ-554598-fix-multipath-locking.patch b/multipath-tools/patches/0019-RHBZ-554598-fix-multipath-locking.patch deleted file mode 100644 index cf101e2..0000000 --- a/multipath-tools/patches/0019-RHBZ-554598-fix-multipath-locking.patch +++ /dev/null @@ -1,43 +0,0 @@ ---- - libmultipath/configure.c | 16 +++++++++++++++- - 1 file changed, 15 insertions(+), 1 deletion(-) - -Index: multipath-tools/libmultipath/configure.c -=================================================================== ---- multipath-tools.orig/libmultipath/configure.c -+++ multipath-tools/libmultipath/configure.c -@@ -284,6 +284,7 @@ lock_multipath (struct multipath * mpp, - struct pathgroup * pgp; - struct path * pp; - int i, j; -+ int x, y; - - if (!mpp || !mpp->pg) - return 0; -@@ -294,12 +295,25 @@ lock_multipath (struct multipath * mpp, - vector_foreach_slot(pgp->paths, pp, j) { - if (lock && flock(pp->fd, LOCK_EX | LOCK_NB) && - errno == EWOULDBLOCK) -- return 1; -+ goto fail; - else if (!lock) - flock(pp->fd, LOCK_UN); - } - } - return 0; -+fail: -+ vector_foreach_slot (mpp->pg, pgp, x) { -+ if (x > i) -+ return 1; -+ if (!pgp->paths) -+ continue; -+ vector_foreach_slot(pgp->paths, pp, y) { -+ if (x == i && y > j) -+ return 1; -+ flock(pp->fd, LOCK_UN); -+ } -+ } -+ return 1; - } - - /* diff --git a/multipath-tools/patches/0020-RHBZ-554605-fix-manual-failover.patch b/multipath-tools/patches/0020-RHBZ-554605-fix-manual-failover.patch deleted file mode 100644 index 51b66bd..0000000 --- a/multipath-tools/patches/0020-RHBZ-554605-fix-manual-failover.patch +++ /dev/null @@ -1,52 +0,0 @@ ---- - libmultipath/pgpolicies.c | 23 +++++++++++++++++++---- - 1 file changed, 19 insertions(+), 4 deletions(-) - -Index: multipath-tools/libmultipath/pgpolicies.c -=================================================================== ---- multipath-tools.orig/libmultipath/pgpolicies.c -+++ multipath-tools/libmultipath/pgpolicies.c -@@ -205,7 +205,8 @@ out: - extern int - one_path_per_group (struct multipath * mp) - { -- int i; -+ int i, j; -+ unsigned int prio; - struct path * pp; - struct pathgroup * pgp; - -@@ -217,16 +218,30 @@ one_path_per_group (struct multipath * m - - for (i = 0; i < VECTOR_SIZE(mp->paths); i++) { - pp = VECTOR_SLOT(mp->paths, i); -+ prio = pp->priority; -+ -+ vector_foreach_slot(mp->pg, pgp, j) { -+ pp = VECTOR_SLOT(pgp->paths, 0); -+ -+ if (prio > pp->priority) -+ break; -+ } -+ - pgp = alloc_pathgroup(); - - if (!pgp) - goto out; - -- if (store_pathgroup(mp->pg, pgp)) -+ if (store_path(pgp->paths, VECTOR_SLOT(mp->paths, i))) - goto out; - -- if (store_path(pgp->paths, pp)) -- goto out; -+ if (j < VECTOR_SIZE(mp->pg)) { -+ if (!vector_insert_slot(mp->pg, j, pgp)) -+ goto out; -+ } else { -+ if (store_pathgroup(mp->pg, pgp)) -+ goto out; -+ } - } - free_pathvec(mp->paths, KEEP_PATHS); - mp->paths = NULL; diff --git a/multipath-tools/patches/0021-RHBZ-548874-add-find-multipaths.patch b/multipath-tools/patches/0021-RHBZ-548874-add-find-multipaths.patch deleted file mode 100644 index 12ec02c..0000000 --- a/multipath-tools/patches/0021-RHBZ-548874-add-find-multipaths.patch +++ /dev/null @@ -1,1153 +0,0 @@ ---- - libmultipath/Makefile | 2 - libmultipath/alias.c | 152 ------------------------------ - libmultipath/alias.h | 1 - libmultipath/config.c | 5 - - libmultipath/config.h | 1 - libmultipath/configure.c | 23 ++++ - libmultipath/defaults.h | 2 - libmultipath/dict.c | 34 ++++++ - libmultipath/file.c | 178 +++++++++++++++++++++++++++++++++++ - libmultipath/file.h | 11 ++ - libmultipath/finder.c | 150 ++++++++++++++++++++++++++++++ - libmultipath/finder.h | 18 +++ - multipath/Makefile | 2 - multipath/main.c | 2 - multipath/mpathconf | 234 +++++++++++++++++++++++++++++++++++++++++++++++ - multipathd/main.c | 27 +++-- - 16 files changed, 679 insertions(+), 163 deletions(-) - -Index: multipath-tools/libmultipath/alias.c -=================================================================== ---- multipath-tools.orig/libmultipath/alias.c -+++ multipath-tools/libmultipath/alias.c -@@ -3,19 +3,16 @@ - * Copyright (c) 2005 Benjamin Marzinski, Redhat - */ - #include <stdlib.h> --#include <sys/types.h> --#include <sys/stat.h> --#include <fcntl.h> - #include <errno.h> - #include <unistd.h> - #include <string.h> - #include <limits.h> - #include <stdio.h> --#include <signal.h> - - #include "debug.h" - #include "uxsock.h" - #include "alias.h" -+#include "file.h" - - - /* -@@ -37,149 +34,6 @@ - */ - - static int --ensure_directories_exist(char *str, mode_t dir_mode) --{ -- char *pathname; -- char *end; -- int err; -- -- pathname = strdup(str); -- if (!pathname){ -- condlog(0, "Cannot copy bindings file pathname : %s", -- strerror(errno)); -- return -1; -- } -- end = pathname; -- /* skip leading slashes */ -- while (end && *end && (*end == '/')) -- end++; -- -- while ((end = strchr(end, '/'))) { -- /* if there is another slash, make the dir. */ -- *end = '\0'; -- err = mkdir(pathname, dir_mode); -- if (err && errno != EEXIST) { -- condlog(0, "Cannot make directory [%s] : %s", -- pathname, strerror(errno)); -- free(pathname); -- return -1; -- } -- if (!err) -- condlog(3, "Created dir [%s]", pathname); -- *end = '/'; -- end++; -- } -- free(pathname); -- return 0; --} -- --static void --sigalrm(int sig) --{ -- /* do nothing */ --} -- --static int --lock_bindings_file(int fd) --{ -- struct sigaction act, oldact; -- sigset_t set, oldset; -- struct flock lock; -- int err; -- -- memset(&lock, 0, sizeof(lock)); -- lock.l_type = F_WRLCK; -- lock.l_whence = SEEK_SET; -- -- act.sa_handler = sigalrm; -- sigemptyset(&act.sa_mask); -- act.sa_flags = 0; -- sigemptyset(&set); -- sigaddset(&set, SIGALRM); -- -- sigaction(SIGALRM, &act, &oldact); -- sigprocmask(SIG_UNBLOCK, &set, &oldset); -- -- alarm(BINDINGS_FILE_TIMEOUT); -- err = fcntl(fd, F_SETLKW, &lock); -- alarm(0); -- -- if (err) { -- if (errno != EINTR) -- condlog(0, "Cannot lock bindings file : %s", -- strerror(errno)); -- else -- condlog(0, "Bindings file is locked. Giving up."); -- } -- -- sigprocmask(SIG_SETMASK, &oldset, NULL); -- sigaction(SIGALRM, &oldact, NULL); -- return err; -- --} -- -- --static int --open_bindings_file(char *file, int *can_write) --{ -- int fd; -- struct stat s; -- -- if (ensure_directories_exist(file, 0700)) -- return -1; -- *can_write = 1; -- fd = open(file, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR); -- if (fd < 0) { -- if (errno == EROFS) { -- *can_write = 0; -- condlog(3, "Cannot open bindings file [%s] read/write. " -- " trying readonly", file); -- fd = open(file, O_RDONLY); -- if (fd < 0) { -- condlog(0, "Cannot open bindings file [%s] " -- "readonly : %s", file, strerror(errno)); -- return -1; -- } -- } -- else { -- condlog(0, "Cannot open bindings file [%s] : %s", file, -- strerror(errno)); -- return -1; -- } -- } -- if (*can_write && lock_bindings_file(fd) < 0) -- goto fail; -- -- memset(&s, 0, sizeof(s)); -- if (fstat(fd, &s) < 0){ -- condlog(0, "Cannot stat bindings file : %s", strerror(errno)); -- goto fail; -- } -- if (s.st_size == 0) { -- if (*can_write == 0) -- goto fail; -- /* If bindings file is empty, write the header */ -- size_t len = strlen(BINDINGS_FILE_HEADER); -- if (write_all(fd, BINDINGS_FILE_HEADER, len) != len) { -- condlog(0, -- "Cannot write header to bindings file : %s", -- strerror(errno)); -- /* cleanup partially written header */ -- ftruncate(fd, 0); -- goto fail; -- } -- fsync(fd); -- condlog(3, "Initialized new bindings file [%s]", file); -- } -- -- return fd; -- --fail: -- close(fd); -- return -1; --} -- --static int - format_devname(char *name, int id, int len) - { - int pos; -@@ -364,7 +218,7 @@ get_user_friendly_alias(char *wwid, char - return NULL; - } - -- fd = open_bindings_file(file, &can_write); -+ fd = open_file(file, &can_write, BINDINGS_FILE_HEADER); - if (fd < 0) - return NULL; - -@@ -414,7 +268,7 @@ get_user_friendly_wwid(char *alias, char - return NULL; - } - -- fd = open_bindings_file(file, &unused); -+ fd = open_file(file, &unused, BINDINGS_FILE_HEADER); - if (fd < 0) - return NULL; - -Index: multipath-tools/libmultipath/alias.h -=================================================================== ---- multipath-tools.orig/libmultipath/alias.h -+++ multipath-tools/libmultipath/alias.h -@@ -1,4 +1,3 @@ --#define BINDINGS_FILE_TIMEOUT 30 - #define BINDINGS_FILE_HEADER \ - "# Multipath bindings, Version : 1.0\n" \ - "# NOTE: this file is automatically maintained by the multipath program.\n" \ -Index: multipath-tools/libmultipath/config.c -=================================================================== ---- multipath-tools.orig/libmultipath/config.c -+++ multipath-tools/libmultipath/config.c -@@ -452,6 +452,7 @@ load_config (char * file) - conf->multipath_dir = set_default(DEFAULT_MULTIPATHDIR); - conf->flush_on_last_del = 0; - conf->attribute_flags = 0; -+ conf->find_multipaths = DEFAULT_FIND_MULTIPATHS; - - /* - * preload default hwtable -@@ -476,10 +477,12 @@ load_config (char * file) - } - } else { - condlog(0, "/etc/multipath.conf does not exist, blacklisting all devices."); -- condlog(0, "A default multipath.conf file is located at"); -+ condlog(0, "A sample multipath.conf file is located at"); - condlog(0, - "/usr/share/doc/device-mapper-multipath-%d.%d.%d/multipath.conf", - MULTIPATH_VERSION(VERSION_CODE)); -+ condlog(0, -+"You can run /sbin/mpathconf to create or modify /etc/multipath.conf"); - conf->blist_devnode = vector_alloc(); - if (!conf->blist_devnode) { - condlog(0, "cannot allocate blacklist\n"); -Index: multipath-tools/libmultipath/config.h -=================================================================== ---- multipath-tools.orig/libmultipath/config.h -+++ multipath-tools/libmultipath/config.h -@@ -85,6 +85,7 @@ struct config { - int attribute_flags; - int fast_io_fail; - unsigned int dev_loss; -+ int find_multipaths; - uid_t uid; - gid_t gid; - mode_t mode; -Index: multipath-tools/libmultipath/configure.c -=================================================================== ---- multipath-tools.orig/libmultipath/configure.c -+++ multipath-tools/libmultipath/configure.c -@@ -35,6 +35,7 @@ - #include "alias.h" - #include "prio.h" - #include "util.h" -+#include "finder.h" - - extern int - setup_map (struct multipath * mpp) -@@ -462,6 +463,10 @@ coalesce_paths (struct vectors * vecs, v - - memset(empty_buff, 0, WWID_SIZE); - -+ /* ignore refwwid if it's empty */ -+ if (refwwid && !strlen(refwwid)) -+ refwwid = NULL; -+ - if (force_reload) { - vector_foreach_slot (pathvec, pp1, k) { - pp1->mpp = NULL; -@@ -472,21 +477,35 @@ coalesce_paths (struct vectors * vecs, v - - /* 1. if path has no unique id or wwid blacklisted */ - if (memcmp(empty_buff, pp1->wwid, WWID_SIZE) == 0 || -- filter_path(conf, pp1) > 0) -+ filter_path(conf, pp1) > 0) { -+ orphan_path(pp1); - continue; -+ } - - /* 2. if path already coalesced */ - if (pp1->mpp) - continue; - - /* 3. if path has disappeared */ -- if (!pp1->size) -+ if (!pp1->size) { -+ orphan_path(pp1); - continue; -+ } - - /* 4. path is out of scope */ - if (refwwid && strncmp(pp1->wwid, refwwid, WWID_SIZE)) - continue; - -+ /* If find_multipaths was selected check if the path is valid */ -+ if (conf->find_multipaths){ -+ if (refwwid || should_multipath(pp1, pathvec)) -+ remember_wwid(pp1->wwid); -+ else { -+ orphan_path(pp1); -+ continue; -+ } -+ } -+ - /* - * at this point, we know we really got a new mp - */ -Index: multipath-tools/libmultipath/defaults.h -=================================================================== ---- multipath-tools.orig/libmultipath/defaults.h -+++ multipath-tools/libmultipath/defaults.h -@@ -12,6 +12,7 @@ - #define DEFAULT_PGTIMEOUT -PGTIMEOUT_NONE - #define DEFAULT_USER_FRIENDLY_NAMES 0 - #define DEFAULT_VERBOSITY 2 -+#define DEFAULT_FIND_MULTIPATHS 0 - - #define DEFAULT_CHECKINT 5 - #define MAX_CHECKINT(a) (a << 2) -@@ -20,5 +21,6 @@ - #define DEFAULT_SOCKET "/var/run/multipathd.sock" - #define DEFAULT_CONFIGFILE "/etc/multipath.conf" - #define DEFAULT_BINDINGS_FILE "/etc/multipath/bindings" -+#define DEFAULT_WWIDS_FILE "/etc/multipath/wwids" - - char * set_default (char * str); -Index: multipath-tools/libmultipath/dict.c -=================================================================== ---- multipath-tools.orig/libmultipath/dict.c -+++ multipath-tools/libmultipath/dict.c -@@ -444,6 +444,27 @@ def_flush_on_last_del_handler(vector str - } - - static int -+def_find_multipaths_handler(vector strvec) -+{ -+ char * buff; -+ -+ buff = set_value(strvec); -+ -+ if (!buff) -+ return 1; -+ -+ if ((strlen(buff) == 2 && !strcmp(buff, "no")) || -+ (strlen(buff) == 1 && !strcmp(buff, "0"))) -+ conf->find_multipaths = 0; -+ else if ((strlen(buff) == 3 && !strcmp(buff, "yes")) || -+ (strlen(buff) == 1 && !strcmp(buff, "1"))) -+ conf->find_multipaths = 1; -+ -+ FREE(buff); -+ return 0; -+} -+ -+static int - names_handler(vector strvec) - { - char * buff; -@@ -2076,6 +2097,18 @@ snprint_def_flush_on_last_del (char * bu - } - - static int -+snprint_def_find_multipaths (char * buff, int len, void * data) -+{ -+ if (conf->find_multipaths == DEFAULT_FIND_MULTIPATHS) -+ return 0; -+ if (!conf->find_multipaths) -+ return snprintf(buff, len, "no"); -+ -+ return snprintf(buff, len, "yes"); -+} -+ -+ -+static int - snprint_def_user_friendly_names (char * buff, int len, void * data) - { - if (conf->user_friendly_names == DEFAULT_USER_FRIENDLY_NAMES) -@@ -2141,6 +2174,7 @@ init_keywords(void) - install_keyword("gid", &def_gid_handler, &snprint_def_gid); - install_keyword("fast_io_fail_tmo", &def_fast_io_fail_handler, &snprint_def_fast_io_fail); - install_keyword("dev_loss_tmo", &def_dev_loss_handler, &snprint_def_dev_loss); -+ install_keyword("find_multipaths", &def_find_multipaths_handler, &snprint_def_find_multipaths); - __deprecated install_keyword("default_selector", &def_selector_handler, NULL); - __deprecated install_keyword("default_path_grouping_policy", &def_pgpolicy_handler, NULL); - __deprecated install_keyword("default_getuid_callout", &def_getuid_callout_handler, NULL); -Index: multipath-tools/libmultipath/file.c -=================================================================== ---- /dev/null -+++ multipath-tools/libmultipath/file.c -@@ -0,0 +1,178 @@ -+/* -+ * Copyright (c) 2005 Christophe Varoqui -+ * Copyright (c) 2005 Benjamin Marzinski, Redhat -+ */ -+#include <stdlib.h> -+#include <sys/types.h> -+#include <sys/stat.h> -+#include <fcntl.h> -+#include <errno.h> -+#include <unistd.h> -+#include <string.h> -+#include <limits.h> -+#include <stdio.h> -+#include <signal.h> -+ -+#include "file.h" -+#include "debug.h" -+#include "uxsock.h" -+ -+ -+/* -+ * significant parts of this file were taken from iscsi-bindings.c of the -+ * linux-iscsi project. -+ * Copyright (C) 2002 Cisco Systems, Inc. -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License as published -+ * by the Free Software Foundation; either version 2 of the License, or -+ * (at your option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, but -+ * WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -+ * General Public License for more details. -+ * -+ * See the file COPYING included with this distribution for more details. -+ */ -+ -+static int -+ensure_directories_exist(char *str, mode_t dir_mode) -+{ -+ char *pathname; -+ char *end; -+ int err; -+ -+ pathname = strdup(str); -+ if (!pathname){ -+ condlog(0, "Cannot copy file pathname %s : %s", -+ str, strerror(errno)); -+ return -1; -+ } -+ end = pathname; -+ /* skip leading slashes */ -+ while (end && *end && (*end == '/')) -+ end++; -+ -+ while ((end = strchr(end, '/'))) { -+ /* if there is another slash, make the dir. */ -+ *end = '\0'; -+ err = mkdir(pathname, dir_mode); -+ if (err && errno != EEXIST) { -+ condlog(0, "Cannot make directory [%s] : %s", -+ pathname, strerror(errno)); -+ free(pathname); -+ return -1; -+ } -+ if (!err) -+ condlog(3, "Created dir [%s]", pathname); -+ *end = '/'; -+ end++; -+ } -+ free(pathname); -+ return 0; -+} -+ -+static void -+sigalrm(int sig) -+{ -+ /* do nothing */ -+} -+ -+static int -+lock_file(int fd, char *file_name) -+{ -+ struct sigaction act, oldact; -+ sigset_t set, oldset; -+ struct flock lock; -+ int err; -+ -+ memset(&lock, 0, sizeof(lock)); -+ lock.l_type = F_WRLCK; -+ lock.l_whence = SEEK_SET; -+ -+ act.sa_handler = sigalrm; -+ sigemptyset(&act.sa_mask); -+ act.sa_flags = 0; -+ sigemptyset(&set); -+ sigaddset(&set, SIGALRM); -+ -+ sigaction(SIGALRM, &act, &oldact); -+ sigprocmask(SIG_UNBLOCK, &set, &oldset); -+ -+ alarm(FILE_TIMEOUT); -+ err = fcntl(fd, F_SETLKW, &lock); -+ alarm(0); -+ -+ if (err) { -+ if (errno != EINTR) -+ condlog(0, "Cannot lock %s : %s", file_name, -+ strerror(errno)); -+ else -+ condlog(0, "%s is locked. Giving up.", file_name); -+ } -+ -+ sigprocmask(SIG_SETMASK, &oldset, NULL); -+ sigaction(SIGALRM, &oldact, NULL); -+ return err; -+} -+ -+int -+open_file(char *file, int *can_write, char *header) -+{ -+ int fd; -+ struct stat s; -+ -+ if (ensure_directories_exist(file, 0700)) -+ return -1; -+ *can_write = 1; -+ fd = open(file, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR); -+ if (fd < 0) { -+ if (errno == EROFS) { -+ *can_write = 0; -+ condlog(3, "Cannot open file [%s] read/write. " -+ " trying readonly", file); -+ fd = open(file, O_RDONLY); -+ if (fd < 0) { -+ condlog(0, "Cannot open file [%s] " -+ "readonly : %s", file, strerror(errno)); -+ return -1; -+ } -+ } -+ else { -+ condlog(0, "Cannot open file [%s] : %s", file, -+ strerror(errno)); -+ return -1; -+ } -+ } -+ if (*can_write && lock_file(fd, file) < 0) -+ goto fail; -+ -+ memset(&s, 0, sizeof(s)); -+ if (fstat(fd, &s) < 0){ -+ condlog(0, "Cannot stat file %s : %s", file, strerror(errno)); -+ goto fail; -+ } -+ if (s.st_size == 0) { -+ if (*can_write == 0) -+ goto fail; -+ /* If file is empty, write the header */ -+ size_t len = strlen(header); -+ if (write_all(fd, header, len) != len) { -+ condlog(0, -+ "Cannot write header to file %s : %s", file, -+ strerror(errno)); -+ /* cleanup partially written header */ -+ ftruncate(fd, 0); -+ goto fail; -+ } -+ fsync(fd); -+ condlog(3, "Initialized new file [%s]", file); -+ } -+ -+ return fd; -+ -+fail: -+ close(fd); -+ return -1; -+} -Index: multipath-tools/libmultipath/file.h -=================================================================== ---- /dev/null -+++ multipath-tools/libmultipath/file.h -@@ -0,0 +1,11 @@ -+/* -+ * Copyright (c) 2010 Benjamin Marzinski, Redhat -+ */ -+ -+#ifndef _FILE_H -+#define _FILE_H -+ -+#define FILE_TIMEOUT 30 -+int open_file(char *file, int *can_write, char *header); -+ -+#endif /* _FILE_H */ -Index: multipath-tools/libmultipath/finder.c -=================================================================== ---- /dev/null -+++ multipath-tools/libmultipath/finder.c -@@ -0,0 +1,150 @@ -+#include <stdlib.h> -+#include <errno.h> -+#include <unistd.h> -+#include <string.h> -+#include <limits.h> -+#include <stdio.h> -+ -+#include "checkers.h" -+#include "vector.h" -+#include "structs.h" -+#include "debug.h" -+#include "uxsock.h" -+#include "file.h" -+#include "finder.h" -+#include "defaults.h" -+ -+/* -+ * Copyright (c) 2010 Benjamin Marzinski, Redhat -+ */ -+ -+static int -+lookup_wwid(FILE *f, char *wwid) { -+ char buf[LINE_MAX]; -+ -+ while (fgets(buf, LINE_MAX, f)) { -+ char *c; -+ -+ c = strpbrk(buf, "#\n\r"); -+ if (c) -+ *c = '\0'; -+ if (*buf == '\0') -+ continue; -+ if (strncmp(wwid, buf, WWID_SIZE) == 0) -+ return 1; -+ } -+ return 0; -+} -+ -+static int -+write_out_wwid(int fd, char *wwid) { -+ int ret; -+ off_t offset; -+ char buf[WWID_SIZE + 1]; -+ -+ ret = snprintf(buf, WWID_SIZE + 1, "%s\n", wwid); -+ if (ret > WWID_SIZE || ret < 0){ -+ condlog(0, "can't format wwid for writing (%d) : %s", -+ ret, strerror(errno)); -+ return -1; -+ } -+ offset = lseek(fd, 0, SEEK_END); -+ if (offset < 0) { -+ condlog(0, "can't seek to the end of wwids file : %s", -+ strerror(errno)); -+ return -1; -+ } -+ if (write_all(fd, buf, strlen(buf)) != strlen(buf)) { -+ condlog(0, "cannot write wwid to wwids file : %s", -+ strerror(errno)); -+ ftruncate(fd, offset); -+ return -1; -+ } -+ return 1; -+} -+ -+static int -+check_wwids_file(char *wwid, int write_wwid) -+{ -+ int scan_fd, fd, can_write, found, ret; -+ FILE *f; -+ fd = open_file(DEFAULT_WWIDS_FILE, &can_write, WWIDS_FILE_HEADER); -+ if (fd < 0) -+ return -1; -+ -+ scan_fd = dup(fd); -+ if (scan_fd < 0) { -+ condlog(0, "can't dup wwids file descriptor : %s", -+ strerror(errno)); -+ close(fd); -+ return -1; -+ } -+ f = fdopen(scan_fd, "r"); -+ if (!f) { -+ condlog(0,"can't fdopen wwids file : %s", strerror(errno)); -+ close(fd); -+ close(scan_fd); -+ return -1; -+ } -+ found = lookup_wwid(f, wwid); -+ if (found) { -+ ret = 0; -+ goto out; -+ } -+ if (!write_wwid) { -+ ret = -1; -+ goto out; -+ } -+ if (!can_write) { -+ condlog(0, "wwids file is read-only. Can't write wwid"); -+ ret = -1; -+ goto out; -+ } -+ ret = write_out_wwid(fd, wwid); -+out: -+ fclose(f); -+ close(scan_fd); -+ close(fd); -+ return ret; -+} -+ -+int -+should_multipath(struct path *pp1, vector pathvec) -+{ -+ int i; -+ struct path *pp2; -+ -+ condlog(4, "checking if %s should be multipathed", pp1->dev); -+ vector_foreach_slot(pathvec, pp2, i) { -+ if (pp1->dev == pp2->dev) -+ continue; -+ if (strncmp(pp1->wwid, pp2->wwid, WWID_SIZE) == 0) { -+ condlog(3, "found multiple paths with wwid %s, " -+ "multipathing %s", pp1->wwid, pp1->dev); -+ return 1; -+ } -+ } -+ if (check_wwids_file(pp1->wwid, 0) < 0) { -+ condlog(3, "wwid %s not in wwids file, skipping %s", -+ pp1->wwid, pp1->dev); -+ return 0; -+ } -+ condlog(3, "found wwid %s in wwids file, multipathing %s", pp1->wwid, -+ pp1->dev); -+ return 1; -+} -+ -+int -+remember_wwid(char *wwid) -+{ -+ int ret = check_wwids_file(wwid, 1); -+ if (ret < 0){ -+ condlog(3, "failed writing wwid %s to wwids file", wwid); -+ return -1; -+ } -+ if (ret == 1) -+ condlog(3, "wrote wwid %s to wwids file", wwid); -+ else -+ condlog(4, "wwid %s already in wwids file", wwid); -+ return 0; -+} -Index: multipath-tools/libmultipath/finder.h -=================================================================== ---- /dev/null -+++ multipath-tools/libmultipath/finder.h -@@ -0,0 +1,18 @@ -+/* -+ * Copyright (c) 2010 Benjamin Marzinski, Redhat -+ */ -+ -+#ifndef _FINDER_H -+#define _FINDER_H -+ -+#define WWIDS_FILE_HEADER \ -+"# Multipath wwids, Version : 1.0\n" \ -+"# NOTE: This file is automatically maintained by multipath and multipathd.\n" \ -+"# You should not need to edit this file in normal circumstances.\n" \ -+"#\n" \ -+"# Valid WWIDs:\n" -+ -+int should_multipath(struct path *pp, vector pathvec); -+int remember_wwid(char *wwid); -+ -+#endif /* _FINDER_H */ -Index: multipath-tools/multipath/main.c -=================================================================== ---- multipath-tools.orig/multipath/main.c -+++ multipath-tools/multipath/main.c -@@ -307,7 +307,7 @@ configure (void) - /* - * core logic entry point - */ -- r = coalesce_paths(&vecs, NULL, NULL, conf->force_reload); -+ r = coalesce_paths(&vecs, NULL, refwwid, conf->force_reload); - - out: - if (refwwid) -Index: multipath-tools/multipathd/main.c -=================================================================== ---- multipath-tools.orig/multipathd/main.c -+++ multipath-tools/multipathd/main.c -@@ -47,6 +47,7 @@ - #include <print.h> - #include <configure.h> - #include <prio.h> -+#include <finder.h> - - #include "main.h" - #include "pidfile.h" -@@ -397,7 +398,7 @@ ev_add_path (char * devname, struct vect - */ - if (memcmp(empty_buff, pp->wwid, WWID_SIZE) == 0) { - condlog(0, "%s: failed to get path uid", devname); -- return 1; /* leave path added to pathvec */ -+ goto fail; /* leave path added to pathvec */ - } - if (filter_path(conf, pp) > 0){ - int i = find_slot(vecs->pathvec, (void *)pp); -@@ -412,18 +413,26 @@ rescan: - condlog(4,"%s: adopting all paths for path %s", - mpp->alias, pp->dev); - if (adopt_paths(vecs->pathvec, mpp)) -- return 1; /* leave path added to pathvec */ -+ goto fail; /* leave path added to pathvec */ - - verify_paths(mpp, vecs, NULL); - mpp->flush_on_last_del = FLUSH_UNDEF; - mpp->action = ACT_RELOAD; - } - else { -+ if (conf->find_multipaths) { -+ if (should_multipath(pp, vecs->pathvec)) -+ remember_wwid(pp->wwid); -+ else { -+ orphan_path(pp); -+ return 0; -+ } -+ } - condlog(4,"%s: creating new map", pp->dev); - if ((mpp = add_map_with_path(vecs, pp, 1))) - mpp->action = ACT_CREATE; - else -- return 1; /* leave path added to pathvec */ -+ goto fail; /* leave path added to pathvec */ - } - - /* -@@ -432,7 +441,7 @@ rescan: - if (setup_map(mpp)) { - condlog(0, "%s: failed to setup map for addition of new " - "path %s", mpp->alias, devname); -- goto out; -+ goto fail_map; - } - /* - * reload the map for the multipath mapped device -@@ -450,7 +459,7 @@ rescan: - goto rescan; - } - else -- goto out; -+ goto fail_map; - } - dm_lib_release(); - -@@ -458,19 +467,21 @@ rescan: - * update our state from kernel regardless of create or reload - */ - if (setup_multipath(vecs, mpp)) -- goto out; -+ goto fail_map; - - sync_map_state(mpp); - - if (mpp->action == ACT_CREATE && - start_waiter_thread(mpp, vecs)) -- goto out; -+ goto fail_map; - - condlog(2, "%s path added to devmap %s", devname, mpp->alias); - return 0; - --out: -+fail_map: - remove_map(mpp, vecs, 1); -+fail: -+ orphan_path(pp); - return 1; - } - -Index: multipath-tools/libmultipath/Makefile -=================================================================== ---- multipath-tools.orig/libmultipath/Makefile -+++ multipath-tools/libmultipath/Makefile -@@ -12,7 +12,7 @@ OBJS = memory.o parser.o vector.o devmap - pgpolicies.o debug.o regex.o defaults.o uevent.o \ - switchgroup.o uxsock.o print.o alias.o log_pthread.o \ - log.o configure.o structs_vec.o sysfs.o prio.o checkers.o \ -- lock.o waiter.o -+ lock.o waiter.o file.o finder.o - - LIBDM_API_FLUSH = $(shell if test -d /lib64 ; then objdump -T /lib64/libdevmapper.so* ; else objdump -T /lib/libdevmapper.so.* ; fi | grep -c dm_task_no_flush) - -Index: multipath-tools/multipath/mpathconf -=================================================================== ---- /dev/null -+++ multipath-tools/multipath/mpathconf -@@ -0,0 +1,234 @@ -+#!/bin/sh -+# -+# Copyright (C) 2010 Red Hat, Inc. All rights reserved. -+# -+# This file is part of the device-mapper-multipath package. -+# -+# This copyrighted material is made available to anyone wishing to use, -+# modify, copy, or redistribute it subject to the terms and conditions -+# of the GNU General Public License v.2. -+# -+# You should have received a copy of the GNU General Public License -+# along with this program; if not, write to the Free Software Foundation, -+# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -+ -+# -+# Simple editting of /etc/multipath.conf -+# This program was largely ripped off from lvmconf -+# -+ -+DEFAULT_CONFIGFILE="/usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf" -+CONFIGFILE="/etc/multipath.conf" -+MULTIPATHDIR="/etc/multipath" -+TMPFILE=/etc/multipath/.multipath.conf.tmp -+ -+function usage -+{ -+ echo "usage: $0 <command>" -+ echo "" -+ echo "Commands:" -+ echo "Enable: --enable [--user_friendly_names <y|n>] [--find_multipaths <y|n>" -+ echo "Disable: --disable" -+ echo "Set user_friendly_names: --user_friendly_names <y|n>" -+ echo "Set find_multipaths: --find_multipaths <y|n>" -+ echo "" -+} -+ -+function parse_args -+{ -+ while [ -n "$1" ]; do -+ case $1 in -+ --enable) -+ ENABLE=1 -+ shift -+ ;; -+ --disable) -+ ENABLE=0 -+ shift -+ ;; -+ --user_friendly_names) -+ if [ -n "$2" ]; then -+ FRIENDLY=$2 -+ shift 2 -+ else -+ usage -+ exit 1 -+ fi -+ ;; -+ --find_multipaths) -+ if [ -n "$2" ]; then -+ FIND=$2 -+ shift 2 -+ else -+ usage -+ exit 1 -+ fi -+ ;; -+ *) -+ usage -+ exit -+ esac -+ done -+} -+ -+function validate_args -+{ -+ if [ "$ENABLE" = "0" ] && [ -n "$FRIENDLY" -o -n "$FIND" ]; then -+ echo "ignoring extra parameters on disable" -+ FRIENDLY="" -+ FIND="" -+ fi -+ if [ -n "$FRIENDLY" ] && [ "$FRIENDLY" != "y" -a "$FRIENDLY" != "n" ]; then -+ echo "--user_friendly_names must be either 'y' or 'n'" -+ exit 1 -+ fi -+ if [ -n "$FIND" ] && [ "$FIND" != "y" -a "$FIND" != "n" ]; then -+ echo "--find_multipaths must be either 'y' or 'n'" -+ exit 1 -+ fi -+ if [ -z "$ENABLE" -a -z "$FIND" -a -z "$FRIENDLY" ]; then -+ DISPLAY=1 -+ fi -+} -+ -+umask 0077 -+ -+parse_args "$@" -+ -+validate_args -+ -+if [ ! -d "$MULTIPATHDIR" ]; then -+ echo "/etc/multipath/ does not exist. failing" -+ exit 1 -+fi -+ -+rm $TMPFILE 2> /dev/null -+if [ -f "$CONFIGFILE" ]; then -+ cp $CONFIGFILE $TMPFILE -+elif [ -f "$DEFAULT_CONFIGFILE" ]; then -+ cp $DEFAULT_CONFIGFILE $TMPFILE -+else -+ touch $TMPFILE -+fi -+ -+if grep -q "^blacklist[[:space:]]*{" $TMPFILE ; then -+ HAVE_BLACKLIST=1 -+fi -+ -+if grep -q "^defaults[[:space:]]*{" $TMPFILE ; then -+ HAVE_DEFAULTS=1 -+fi -+ -+if [ "$HAVE_BLACKLIST" = "1" ]; then -+ if sed -n '/^blacklist[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*devnode \"\.\?\*\"" ; then -+ HAVE_DISABLE=1 -+ elif sed -n '/^blacklist[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*#[#[:space:]]*devnode \"\.\?\*\"" ; then -+ HAVE_DISABLE=0 -+ fi -+fi -+ -+if [ "$HAVE_DEFAULTS" = "1" ]; then -+ if sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*find_multipaths[[:space:]]*$yes\|1$" ; then -+ HAVE_FIND=1 -+ elif sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*find_multipaths[[:space:]]*$no\|0$" ; then -+ HAVE_FIND=0 -+ fi -+ if sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*user_friendly_names[[:space:]]*$yes\|1$" ; then -+ HAVE_FRIENDLY=1 -+ elif sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*user_friendly_names[[:space:]]*$no\|0$" ; then -+ HAVE_FRIENDLY=0 -+ fi -+fi -+ -+if [ -n "$DISPLAY" ]; then -+ if [ -z "$HAVE_DISABLE" -o "$HAVE_DISABLE" = 0 ]; then -+ echo "multipath is enabled" -+ else -+ echo "multipath is disabled" -+ fi -+ if [ -z "$HAVE_FIND" -o "$HAVE_FIND" = 0 ]; then -+ echo "find_multipaths is disabled" -+ else -+ echo "find_multipaths is enabled" -+ fi -+ if [ -z "$HAVE_FRIENDLY" -o "$HAVE_FRIENDLY" = 0 ]; then -+ echo "user_friendly_names is disabled" -+ else -+ echo "user_friendly_names is enabled" -+ fi -+ exit 0 -+fi -+ -+if [ -z "$HAVE_BLACKLIST" ]; then -+ cat >> $TMPFILE <<- _EOF_ -+ -+blacklist { -+} -+_EOF_ -+fi -+ -+if [ -z "$HAVE_DEFAULTS" ]; then -+ cat >> $TMPFILE <<- _EOF_ -+ -+defaults { -+} -+_EOF_ -+fi -+ -+if [ "$ENABLE" = 1 ]; then -+ if [ "$HAVE_DISABLE" = 1 ]; then -+ sed -i '/^blacklist[[:space:]]*{/,/^}/ s/^[[:space:]]*devnode \"\.\?\*\"/# devnode ".*"/' $TMPFILE -+ fi -+elif [ "$ENABLE" = 0 ]; then -+ if [ -z "$HAVE_DISABLE" ]; then -+ sed -i '/^blacklist[[:space:]]*{/ a\ -+ devnode "*" -+' $TMPFILE -+ elif [ "$HAVE_DISABLE" = 0 ]; then -+ sed -i '/^blacklist[[:space:]]*{/,/^}/ s/^[[:space:]]*#[#[:space:]]*devnode \"\.\?\*\"/ devnode ".*"/' $TMPFILE -+ fi -+fi -+ -+if [ "$FIND" = "n" ]; then -+ if [ "$HAVE_FIND" = 1 ]; then -+ sed -i '/^defaults[[:space:]]*{/,/^}/ s/^[[:space:]]*find_multipaths[[:space:]]*$yes\|1$/ find_multipaths no/' $TMPFILE -+ fi -+elif [ "$FIND" = "y" ]; then -+ if [ -z "$HAVE_FIND" ]; then -+ sed -i '/^defaults[[:space:]]*{/ a\ -+ find_multipaths yes -+' $TMPFILE -+ elif [ "$HAVE_FIND" = 0 ]; then -+ sed -i '/^defaults[[:space:]]*{/,/^}/ s/^[[:space:]]*find_multipaths[[:space:]]*$no\|0$/ find_multipaths yes/' $TMPFILE -+ fi -+fi -+ -+if [ "$FRIENDLY" = "n" ]; then -+ if [ "$HAVE_FRIENDLY" = 1 ]; then -+ sed -i '/^defaults[[:space:]]*{/,/^}/ s/^[[:space:]]*user_friendly_names[[:space:]]*$yes\|1$/ user_friendly_names no/' $TMPFILE -+ fi -+elif [ "$FRIENDLY" = "y" ]; then -+ if [ -z "$HAVE_FRIENDLY" ]; then -+ sed -i '/^defaults[[:space:]]*{/ a\ -+ user_friendly_names yes -+' $TMPFILE -+ elif [ "$HAVE_FRIENDLY" = 0 ]; then -+ sed -i '/^defaults[[:space:]]*{/,/^}/ s/^[[:space:]]*user_friendly_names[[:space:]]*$no\|0$/ user_friendly_names yes/' $TMPFILE -+ fi -+fi -+ -+if [ -f "$CONFIGFILE" ]; then -+ cp $CONFIGFILE $CONFIGFILE.old -+ if [ $? != 0 ]; then -+ echo "failed to backup old config file, $CONFIGFILE not updated" -+ exit 1 -+ fi -+fi -+ -+cp $TMPFILE $CONFIGFILE -+if [ $? != 0 ]; then -+ echo "failed to copy new config file into place, check $CONFIGFILE is still OK" -+ exit 1 -+fi -+ -+rm -f $TMPFILE -Index: multipath-tools/multipath/Makefile -=================================================================== ---- multipath-tools.orig/multipath/Makefile -+++ multipath-tools/multipath/Makefile -@@ -21,6 +21,7 @@ $(EXEC): $(OBJS) - install: - $(INSTALL_PROGRAM) -d $(DESTDIR)$(bindir) - $(INSTALL_PROGRAM) -m 755 $(EXEC) $(DESTDIR)$(bindir)/ -+ $(INSTALL_PROGRAM) -m 755 mpathconf $(DESTDIR)$(bindir)/ - $(INSTALL_PROGRAM) -d $(DESTDIR)/lib/udev/rules.d - $(INSTALL_PROGRAM) -m 644 multipath.rules $(DESTDIR)/lib/udev/rules.d/40-multipath.rules - $(INSTALL_PROGRAM) -d $(DESTDIR)$(mandir) -@@ -31,6 +32,7 @@ install: - uninstall: - rm $(DESTDIR)/lib/udev/rules.d/multipath.rules - rm $(DESTDIR)$(bindir)/$(EXEC) -+ rm $(DESTDIR)$(bindir)/mpathconf - rm $(DESTDIR)$(mandir)/$(EXEC).8.gz - rm $(DESTDIR)$(man5dir)/$(EXEC).conf.5.gz - diff --git a/multipath-tools/patches/0022-RHBZ-557845-RHEL5-style-partitions.patch b/multipath-tools/patches/0022-RHBZ-557845-RHEL5-style-partitions.patch deleted file mode 100644 index 95488b8..0000000 --- a/multipath-tools/patches/0022-RHBZ-557845-RHEL5-style-partitions.patch +++ /dev/null @@ -1,325 +0,0 @@ ---- - kpartx/bsd.c | 35 ---------------- - kpartx/dos.c | 7 +-- - kpartx/kpartx.c | 121 +++++++------------------------------------------------- - kpartx/kpartx.h | 1 - kpartx/sun.c | 35 ---------------- - 5 files changed, 24 insertions(+), 175 deletions(-) - -Index: multipath-tools/kpartx/bsd.c -=================================================================== ---- multipath-tools.orig/kpartx/bsd.c -+++ multipath-tools/kpartx/bsd.c -@@ -50,10 +50,10 @@ int - read_bsd_pt(int fd, struct slice all, struct slice *sp, int ns) { - struct bsd_disklabel *l; - struct bsd_partition *p; -- unsigned int offset = all.start, end; -+ unsigned int offset = all.start; - int max_partitions; - char *bp; -- int n = 0, i, j; -+ int n = 0; - - bp = getblock(fd, offset+1); /* 1 sector suffices */ - if (bp == NULL) -@@ -79,36 +79,5 @@ read_bsd_pt(int fd, struct slice all, st - break; - } - } -- /* -- * Convention has it that the bsd disklabel will always have -- * the 'c' partition spanning the entire disk. -- * So we have to check for contained slices. -- */ -- for(i = 0; i < n; i++) { -- if (sp[i].size == 0) -- continue; -- -- end = sp[i].start + sp[i].size; -- for(j = 0; j < n; j ++) { -- if ( i == j ) -- continue; -- if (sp[j].size == 0) -- continue; -- -- if (sp[i].start < sp[j].start) { -- if (end > sp[j].start && -- end < sp[j].start + sp[j].size) { -- /* Invalid slice */ -- fprintf(stderr, -- "bsd_disklabel: slice %d overlaps with %d\n", i , j); -- sp[i].size = 0; -- } -- } else { -- if (end <= sp[j].start + sp[j].size) { -- sp[i].container = j + 1; -- } -- } -- } -- } - return n; - } -Index: multipath-tools/kpartx/dos.c -=================================================================== ---- multipath-tools.orig/kpartx/dos.c -+++ multipath-tools/kpartx/dos.c -@@ -16,7 +16,7 @@ is_extended(int type) { - } - - static int --read_extended_partition(int fd, struct partition *ep, int en, -+read_extended_partition(int fd, struct partition *ep, - struct slice *sp, int ns) - { - struct partition p; -@@ -53,7 +53,6 @@ read_extended_partition(int fd, struct p - if (n < ns) { - sp[n].start = here + le32_to_cpu(p.start_sect); - sp[n].size = le32_to_cpu(p.nr_sects); -- sp[n].container = en + 1; - n++; - } else { - fprintf(stderr, -@@ -98,7 +97,9 @@ read_dos_pt(int fd, struct slice all, st - break; - } - if (is_extended(p.sys_type)) { -- n += read_extended_partition(fd, &p, i, sp+n, ns-n); -+ n += read_extended_partition(fd, &p, sp+n, ns-n); -+ /* hide the extended partition itself */ -+ sp[i].size = 2; - } - } - return n; -Index: multipath-tools/kpartx/kpartx.c -=================================================================== ---- multipath-tools.orig/kpartx/kpartx.c -+++ multipath-tools/kpartx/kpartx.c -@@ -185,7 +185,7 @@ get_hotplug_device(void) - - int - main(int argc, char **argv){ -- int fd, i, j, m, n, op, off, arg, c, d; -+ int fd, i, j, k, n, op, off, arg; - struct slice all; - struct pt *ptp; - enum action what = LIST; -@@ -355,49 +355,30 @@ main(int argc, char **argv){ - else - continue; - -+ /* -+ * test for overlap, as in the case of an extended partition -+ * zero their size to avoid mapping -+ */ -+ for (j = 0; j < n; j++) { -+ for (k = j + 1; k < n; k++) { -+ if (slices[k].start > slices[j].start && -+ slices[k].start < slices[j].start + -+ slices[j].size) -+ slices[j].size = 0; -+ } -+ } -+ - switch(what) { - case LIST: -- for (j = 0, c = 0, m = 0; j < n; j++) { -+ for (j = 0; j < n; j++) { - if (slices[j].size == 0) - continue; -- if (slices[j].container > 0) { -- c++; -- continue; -- } -- -- slices[j].minor = m++; - - printf("%s%s%d : 0 %" PRIu64 " %s %" PRIu64"\n", - mapname, delim, j+1, - slices[j].size, device, - slices[j].start); - } -- /* Loop to resolve contained slices */ -- d = c; -- while (c) { -- for (j = 0; j < n; j++) { -- uint64_t start; -- int k = slices[j].container - 1; -- -- if (slices[j].size == 0) -- continue; -- if (slices[j].minor > 0) -- continue; -- if (slices[j].container == 0) -- continue; -- slices[j].minor = m++; -- -- start = slices[j].start - slices[k].start; -- printf("%s%s%d : 0 %" PRIu64 " /dev/dm-%d %" PRIu64 "\n", -- mapname, delim, j+1, -- slices[j].size, -- slices[k].minor, start); -- c--; -- } -- /* Terminate loop if nothing more to resolve */ -- if (d == c) -- break; -- } - - if (loopcreated && S_ISREG (buf.st_mode)) { - if (del_loop(device)) { -@@ -443,16 +424,10 @@ main(int argc, char **argv){ - break; - - case ADD: -- for (j = 0, c = 0; j < n; j++) { -+ for (j = 0; j < n; j++) { - if (slices[j].size == 0) - continue; - -- /* Skip all contained slices */ -- if (slices[j].container > 0) { -- c++; -- continue; -- } -- - if (safe_sprintf(partname, "%s%s%d", - mapname, delim, j+1)) { - fprintf(stderr, "partname too small\n"); -@@ -493,70 +468,6 @@ main(int argc, char **argv){ - slices[j].minor, slices[j].size, - DM_TARGET, params); - } -- /* Loop to resolve contained slices */ -- d = c; -- while (c) { -- for (j = 0; j < n; j++) { -- uint64_t start; -- int k = slices[j].container - 1; -- -- if (slices[j].size == 0) -- continue; -- -- /* Skip all existing slices */ -- if (slices[j].minor > 0) -- continue; -- -- /* Skip all simple slices */ -- if (slices[j].container == 0) -- continue; -- -- /* Check container slice */ -- if (slices[k].size == 0) -- fprintf(stderr, "Invalid slice %d\n", -- k); -- -- if (safe_sprintf(partname, "%s%s%d", -- mapname, delim, j+1)) { -- fprintf(stderr, "partname too small\n"); -- exit(1); -- } -- strip_slash(partname); -- -- start = slices[j].start - slices[k].start; -- if (safe_sprintf(params, "%d:%d %" PRIu64, -- slices[k].major, -- slices[k].minor, -- start)) { -- fprintf(stderr, "params too small\n"); -- exit(1); -- } -- -- op = (dm_map_present(partname) ? -- DM_DEVICE_RELOAD : DM_DEVICE_CREATE); -- -- dm_addmap(op, partname, DM_TARGET, params, -- slices[j].size, uuid, j+1, -- buf.st_mode & 0777, -- buf.st_uid, buf.st_gid); -- -- if (op == DM_DEVICE_RELOAD) -- dm_simplecmd(DM_DEVICE_RESUME, -- partname, 1); -- -- dm_devn(partname, &slices[j].major, -- &slices[j].minor); -- -- if (verbose) -- printf("add map %s : 0 %" PRIu64 " %s %s\n", -- partname, slices[j].size, -- DM_TARGET, params); -- c--; -- } -- /* Terminate loop */ -- if (d == c) -- break; -- } - break; - - default: -Index: multipath-tools/kpartx/kpartx.h -=================================================================== ---- multipath-tools.orig/kpartx/kpartx.h -+++ multipath-tools/kpartx/kpartx.h -@@ -24,7 +24,6 @@ - struct slice { - uint64_t start; - uint64_t size; -- int container; - int major; - int minor; - }; -Index: multipath-tools/kpartx/sun.c -=================================================================== ---- multipath-tools.orig/kpartx/sun.c -+++ multipath-tools/kpartx/sun.c -@@ -62,8 +62,8 @@ int - read_sun_pt(int fd, struct slice all, struct slice *sp, int ns) { - struct sun_disk_label *l; - struct sun_raw_part *s; -- unsigned int offset = all.start, end; -- int i, j, n; -+ unsigned int offset = all.start; -+ int i, n; - char *bp; - - bp = getblock(fd, offset); -@@ -95,37 +95,6 @@ read_sun_pt(int fd, struct slice all, st - break; - } - } -- /* -- * Convention has it that the SUN disklabel will always have -- * the 'c' partition spanning the entire disk. -- * So we have to check for contained slices. -- */ -- for(i = 0; i < SUN_DISK_MAXPARTITIONS; i++) { -- if (sp[i].size == 0) -- continue; -- -- end = sp[i].start + sp[i].size; -- for(j = 0; j < SUN_DISK_MAXPARTITIONS; j ++) { -- if ( i == j ) -- continue; -- if (sp[j].size == 0) -- continue; -- -- if (sp[i].start < sp[j].start) { -- if (end > sp[j].start && -- end < sp[j].start + sp[j].size) { -- /* Invalid slice */ -- fprintf(stderr, -- "sun_disklabel: slice %d overlaps with %d\n", i , j); -- sp[i].size = 0; -- } -- } else { -- if (end <= sp[j].start + sp[j].size) { -- sp[i].container = j + 1; -- } -- } -- } -- } - return n; - } - diff --git a/multipath-tools/patches/0023-RHBZ-557810-emc-invista-config.patch b/multipath-tools/patches/0023-RHBZ-557810-emc-invista-config.patch deleted file mode 100644 index 0db517f..0000000 --- a/multipath-tools/patches/0023-RHBZ-557810-emc-invista-config.patch +++ /dev/null @@ -1,52 +0,0 @@ -Index: multipath-tools/libmultipath/hwtable.c -=================================================================== ---- multipath-tools.orig/libmultipath/hwtable.c -+++ multipath-tools/libmultipath/hwtable.c -@@ -282,6 +282,21 @@ static struct hwentry default_hw[] = { - .checker_name = EMC_CLARIION, - .prio_name = PRIO_EMC, - }, -+ { -+ .vendor = "EMC", -+ .product = "Invista", -+ .bl_product = "LUNZ", -+ .getuid = DEFAULT_GETUID, -+ .features = DEFAULT_FEATURES, -+ .hwhandler = DEFAULT_HWHANDLER, -+ .selector = DEFAULT_SELECTOR, -+ .pgpolicy = MULTIBUS, -+ .pgfailback = FAILBACK_UNDEF, -+ .rr_weight = RR_WEIGHT_NONE, -+ .no_path_retry = 5, -+ .minio = DEFAULT_MINIO, -+ .prio_name = DEFAULT_PRIO, -+ }, - /* - * Fujitsu controller family - * -Index: multipath-tools/multipath.conf.defaults -=================================================================== ---- multipath-tools.orig/multipath.conf.defaults -+++ multipath-tools/multipath.conf.defaults -@@ -209,6 +209,21 @@ - # prio emc - # } - # device { -+# vendor "EMC" -+# product "Invista" -+# product_blacklist "LUNZ" -+# getuid_callout "/lib/udev/scsi_id --whitelisted --page=pre-spc3-83 --device=/dev/%n" -+# features "0" -+# hardware_handler "0" -+# path_selector "round-robin 0" -+# path_grouping_policy multibus -+# rr_weight uniform -+# no_path_retry 5 -+# rr_min_io 1000 -+# path_checker tur -+# prio const -+# } -+# device { - # vendor "FSC" - # product "CentricStor" - # getuid_callout "/lib/udev/scsi_id --whitelisted --device=/dev/%n" diff --git a/multipath-tools/patches/0024-RHBZ-565933-checker-timeout.patch b/multipath-tools/patches/0024-RHBZ-565933-checker-timeout.patch deleted file mode 100644 index 44f12f7..0000000 --- a/multipath-tools/patches/0024-RHBZ-565933-checker-timeout.patch +++ /dev/null @@ -1,428 +0,0 @@ ---- - libmultipath/checkers.h | 15 +-------------- - libmultipath/checkers/emc_clariion.c | 4 ++-- - libmultipath/checkers/hp_sw.c | 12 ++++++------ - libmultipath/checkers/libsg.c | 5 +++-- - libmultipath/checkers/libsg.h | 3 ++- - libmultipath/checkers/rdac.c | 9 +++++---- - libmultipath/checkers/readsector0.c | 2 +- - libmultipath/checkers/tur.c | 4 ++-- - libmultipath/config.h | 1 + - libmultipath/dict.c | 29 +++++++++++++++++++++++++++++ - libmultipath/discovery.c | 27 +++++++++++++++++++++++++++ - libmultipath/discovery.h | 1 + - libmultipath/propsel.c | 19 +++++++++++++++++-- - multipath.conf.annotated | 9 +++++++++ - 14 files changed, 106 insertions(+), 34 deletions(-) - -Index: multipath-tools/libmultipath/checkers.h -=================================================================== ---- multipath-tools.orig/libmultipath/checkers.h -+++ multipath-tools/libmultipath/checkers.h -@@ -69,20 +69,6 @@ enum path_check_state { - - #define DEFAULT_CHECKER DIRECTIO - --/* -- * Overloaded storage response time can be very long. -- * SG_IO timouts after DEF_TIMEOUT milliseconds, and checkers interprets this -- * as a path failure. multipathd then proactively evicts the path from the DM -- * multipath table in this case. -- * -- * This generaly snow balls and ends up in full eviction and IO errors for end -- * users. Bad. This may also cause SCSI bus resets, causing disruption for all -- * local and external storage hardware users. -- * -- * Provision a long timeout. Longer than any real-world application would cope -- * with. -- */ --#define DEF_TIMEOUT 300000 - #define ASYNC_TIMEOUT_SEC 30 - - /* -@@ -98,6 +84,7 @@ struct checker { - struct list_head node; - int fd; - int sync; -+ unsigned int timeout; - int disable; - char name[CHECKER_NAME_LEN]; - char message[CHECKER_MSG_LEN]; /* comm with callers */ -Index: multipath-tools/libmultipath/checkers/emc_clariion.c -=================================================================== ---- multipath-tools.orig/libmultipath/checkers/emc_clariion.c -+++ multipath-tools/libmultipath/checkers/emc_clariion.c -@@ -113,7 +113,7 @@ int libcheck_check (struct checker * c) - io_hdr.dxferp = sense_buffer; - io_hdr.cmdp = inqCmdBlk; - io_hdr.sbp = sb; -- io_hdr.timeout = DEF_TIMEOUT; -+ io_hdr.timeout = c->timeout; - io_hdr.pack_id = 0; - if (ioctl(c->fd, SG_IO, &io_hdr) < 0) { - MSG(c, "emc_clariion_checker: sending query command failed"); -@@ -182,7 +182,7 @@ int libcheck_check (struct checker * c) - unsigned char buf[4096]; - - memset(buf, 0, 4096); -- ret = sg_read(c->fd, &buf[0], sbb = &sb[0]); -+ ret = sg_read(c->fd, &buf[0], sbb = &sb[0], c->timeout); - if (ret == PATH_DOWN) { - hexadecimal_to_ascii(ct->wwn, wwnstr); - -Index: multipath-tools/libmultipath/checkers/hp_sw.c -=================================================================== ---- multipath-tools.orig/libmultipath/checkers/hp_sw.c -+++ multipath-tools/libmultipath/checkers/hp_sw.c -@@ -46,7 +46,7 @@ void libcheck_free (struct checker * c) - - static int - do_inq(int sg_fd, int cmddt, int evpd, unsigned int pg_op, -- void *resp, int mx_resp_len, int noisy) -+ void *resp, int mx_resp_len, int noisy, unsigned int timeout) - { - unsigned char inqCmdBlk[INQUIRY_CMDLEN] = - { INQUIRY_CMD, 0, 0, 0, 0, 0 }; -@@ -70,7 +70,7 @@ do_inq(int sg_fd, int cmddt, int evpd, u - io_hdr.dxferp = resp; - io_hdr.cmdp = inqCmdBlk; - io_hdr.sbp = sense_b; -- io_hdr.timeout = DEF_TIMEOUT; -+ io_hdr.timeout = timeout; - - if (ioctl(sg_fd, SG_IO, &io_hdr) < 0) - return 1; -@@ -98,7 +98,7 @@ do_inq(int sg_fd, int cmddt, int evpd, u - } - - static int --do_tur (int fd) -+do_tur (int fd, unsigned int timeout) - { - unsigned char turCmdBlk[TUR_CMD_LEN] = { 0x00, 0, 0, 0, 0, 0 }; - struct sg_io_hdr io_hdr; -@@ -111,7 +111,7 @@ do_tur (int fd) - io_hdr.dxfer_direction = SG_DXFER_NONE; - io_hdr.cmdp = turCmdBlk; - io_hdr.sbp = sense_buffer; -- io_hdr.timeout = DEF_TIMEOUT; -+ io_hdr.timeout = timeout; - io_hdr.pack_id = 0; - - if (ioctl(fd, SG_IO, &io_hdr) < 0) -@@ -128,12 +128,12 @@ libcheck_check (struct checker * c) - { - char buff[MX_ALLOC_LEN]; - -- if (0 != do_inq(c->fd, 0, 1, 0x80, buff, MX_ALLOC_LEN, 0)) { -+ if (0 != do_inq(c->fd, 0, 1, 0x80, buff, MX_ALLOC_LEN, 0, c->timeout)) { - MSG(c, MSG_HP_SW_DOWN); - return PATH_DOWN; - } - -- if (do_tur(c->fd)) { -+ if (do_tur(c->fd, c->timeout)) { - MSG(c, MSG_HP_SW_GHOST); - return PATH_GHOST; - } -Index: multipath-tools/libmultipath/checkers/libsg.c -=================================================================== ---- multipath-tools.orig/libmultipath/checkers/libsg.c -+++ multipath-tools/libmultipath/checkers/libsg.c -@@ -11,7 +11,8 @@ - #include "../libmultipath/sg_include.h" - - int --sg_read (int sg_fd, unsigned char * buff, unsigned char * senseBuff) -+sg_read (int sg_fd, unsigned char * buff, unsigned char * senseBuff, -+ unsigned int timeout) - { - /* defaults */ - int blocks = 1; -@@ -51,7 +52,7 @@ sg_read (int sg_fd, unsigned char * buff - io_hdr.dxferp = buff; - io_hdr.mx_sb_len = SENSE_BUFF_LEN; - io_hdr.sbp = senseBuff; -- io_hdr.timeout = DEF_TIMEOUT; -+ io_hdr.timeout = timeout; - io_hdr.pack_id = (int)start_block; - if (diop && *diop) - io_hdr.flags |= SG_FLAG_DIRECT_IO; -Index: multipath-tools/libmultipath/checkers/libsg.h -=================================================================== ---- multipath-tools.orig/libmultipath/checkers/libsg.h -+++ multipath-tools/libmultipath/checkers/libsg.h -@@ -3,6 +3,7 @@ - - #define SENSE_BUFF_LEN 32 - --int sg_read (int sg_fd, unsigned char * buff, unsigned char * senseBuff); -+int sg_read (int sg_fd, unsigned char * buff, unsigned char * senseBuff, -+ unsigned int timeout); - - #endif /* _LIBSG_H */ -Index: multipath-tools/libmultipath/checkers/rdac.c -=================================================================== ---- multipath-tools.orig/libmultipath/checkers/rdac.c -+++ multipath-tools/libmultipath/checkers/rdac.c -@@ -18,7 +18,6 @@ - #define INQUIRY_CMDLEN 6 - #define INQUIRY_CMD 0x12 - #define SENSE_BUFF_LEN 32 --#define RDAC_DEF_TIMEOUT 60000 - #define SCSI_CHECK_CONDITION 0x2 - #define SCSI_COMMAND_TERMINATED 0x22 - #define SG_ERR_DRIVER_SENSE 0x08 -@@ -43,7 +42,8 @@ void libcheck_free (struct checker * c) - } - - static int --do_inq(int sg_fd, unsigned int pg_op, void *resp, int mx_resp_len) -+do_inq(int sg_fd, unsigned int pg_op, void *resp, int mx_resp_len, -+ unsigned int timeout) - { - unsigned char inqCmdBlk[INQUIRY_CMDLEN] = { INQUIRY_CMD, 1, 0, 0, 0, 0 }; - unsigned char sense_b[SENSE_BUFF_LEN]; -@@ -62,7 +62,7 @@ do_inq(int sg_fd, unsigned int pg_op, vo - io_hdr.dxferp = resp; - io_hdr.cmdp = inqCmdBlk; - io_hdr.sbp = sense_b; -- io_hdr.timeout = RDAC_DEF_TIMEOUT; -+ io_hdr.timeout = timeout; - - if (ioctl(sg_fd, SG_IO, &io_hdr) < 0) - return 1; -@@ -103,7 +103,8 @@ libcheck_check (struct checker * c) - struct volume_access_inq inq; - - memset(&inq, 0, sizeof(struct volume_access_inq)); -- if (0 != do_inq(c->fd, 0xC9, &inq, sizeof(struct volume_access_inq))) { -+ if (0 != do_inq(c->fd, 0xC9, &inq, sizeof(struct volume_access_inq), -+ c->timeout)) { - MSG(c, MSG_RDAC_DOWN); - return PATH_DOWN; - } else { -Index: multipath-tools/libmultipath/checkers/readsector0.c -=================================================================== ---- multipath-tools.orig/libmultipath/checkers/readsector0.c -+++ multipath-tools/libmultipath/checkers/readsector0.c -@@ -29,7 +29,7 @@ int libcheck_check (struct checker * c) - unsigned char sbuf[SENSE_BUFF_LEN]; - int ret; - -- ret = sg_read(c->fd, &buf[0], &sbuf[0]); -+ ret = sg_read(c->fd, &buf[0], &sbuf[0], c->timeout); - - switch (ret) - { -Index: multipath-tools/libmultipath/checkers/tur.c -=================================================================== ---- multipath-tools.orig/libmultipath/checkers/tur.c -+++ multipath-tools/libmultipath/checkers/tur.c -@@ -63,7 +63,7 @@ retry: - io_hdr.dxferp = (unsigned char *)resp_buffer; - io_hdr.cmdp = inq_cmd; - io_hdr.sbp = sense_buffer; -- io_hdr.timeout = 60; // IOCTL timeout value. -+ io_hdr.timeout = c->timeout; // IOCTL timeout value. - - if (ioctl(c->fd, SG_IO, &io_hdr) < 0) { - condlog(0, "SG_IO ioctl failed: %s", strerror(errno)); -@@ -148,7 +148,7 @@ libcheck_check (struct checker * c) - io_hdr.dxfer_direction = SG_DXFER_NONE; - io_hdr.cmdp = turCmdBlk; - io_hdr.sbp = sense_buffer; -- io_hdr.timeout = DEF_TIMEOUT; -+ io_hdr.timeout = c->timeout; - io_hdr.pack_id = 0; - if (ioctl(c->fd, SG_IO, &io_hdr) < 0) { - MSG(c, MSG_TUR_DOWN); -Index: multipath-tools/libmultipath/config.h -=================================================================== ---- multipath-tools.orig/libmultipath/config.h -+++ multipath-tools/libmultipath/config.h -@@ -80,6 +80,7 @@ struct config { - int max_fds; - int force_reload; - int queue_without_daemon; -+ int checker_timeout; - int daemon; - int flush_on_last_del; - int attribute_flags; -Index: multipath-tools/libmultipath/dict.c -=================================================================== ---- multipath-tools.orig/libmultipath/dict.c -+++ multipath-tools/libmultipath/dict.c -@@ -396,6 +396,25 @@ def_queue_without_daemon(vector strvec) - } - - static int -+def_checker_timeout_handler(vector strvec) -+{ -+ unsigned int checker_timeout; -+ char *buff; -+ -+ buff = set_value(strvec); -+ if (!buff) -+ return 1; -+ -+ if (sscanf(buff, "%u", &checker_timeout) == 1) -+ conf->checker_timeout = checker_timeout; -+ else -+ conf->checker_timeout = 0; -+ -+ free(buff); -+ return 0; -+} -+ -+static int - def_pg_timeout_handler(vector strvec) - { - int pg_timeout; -@@ -2068,6 +2087,15 @@ snprint_def_queue_without_daemon (char * - } - - static int -+snprint_def_checker_timeout (char *buff, int len, void *data) -+{ -+ if (!conf->checker_timeout) -+ return 0; -+ -+ return snprintf(buff, len, "%u", conf->checker_timeout); -+} -+ -+static int - snprint_def_pg_timeout (char * buff, int len, void * data) - { - if (conf->pg_timeout == DEFAULT_PGTIMEOUT) -@@ -2166,6 +2194,7 @@ init_keywords(void) - install_keyword("rr_weight", &def_weight_handler, &snprint_def_rr_weight); - install_keyword("no_path_retry", &def_no_path_retry_handler, &snprint_def_no_path_retry); - install_keyword("queue_without_daemon", &def_queue_without_daemon, &snprint_def_queue_without_daemon); -+ install_keyword("checker_timeout", &def_checker_timeout_handler, &snprint_def_checker_timeout); - install_keyword("pg_timeout", &def_pg_timeout_handler, &snprint_def_pg_timeout); - install_keyword("flush_on_last_del", &def_flush_on_last_del_handler, &snprint_def_flush_on_last_del); - install_keyword("user_friendly_names", &names_handler, &snprint_def_user_friendly_names); -Index: multipath-tools/libmultipath/discovery.c -=================================================================== ---- multipath-tools.orig/libmultipath/discovery.c -+++ multipath-tools/libmultipath/discovery.c -@@ -164,6 +164,31 @@ sysfs_get_dev (struct sysfs_device * dev - } - - int -+sysfs_get_timeout(struct sysfs_device *dev, unsigned int *timeout) -+{ -+ char *attr; -+ char attr_path[SYSFS_PATH_SIZE]; -+ int r; -+ unsigned int t; -+ -+ if (safe_sprintf(attr_path, "%s/device", dev->devpath)) -+ return 1; -+ -+ attr = sysfs_attr_get_value(dev->devpath, "timeout"); -+ if (!attr) -+ return 1; -+ -+ r = sscanf(attr, "%u\n", &t); -+ -+ if (r != 1) -+ return 1; -+ -+ *timeout = t * 1000; -+ -+ return 0; -+} -+ -+int - sysfs_get_size (struct sysfs_device * dev, unsigned long long * size) - { - char *attr; -@@ -791,6 +816,8 @@ get_state (struct path * pp, int daemon) - return PATH_PENDING; - checker_set_async(c); - } -+ if (!conf->checker_timeout) -+ sysfs_get_timeout(pp->sysdev, &(c->timeout)); - state = checker_check(c); - condlog(3, "%s: state = %i", pp->dev, state); - if (state == PATH_DOWN && strlen(checker_message(c))) -Index: multipath-tools/libmultipath/propsel.c -=================================================================== ---- multipath-tools.orig/libmultipath/propsel.c -+++ multipath-tools/libmultipath/propsel.c -@@ -16,6 +16,7 @@ - #include "defaults.h" - #include "devmapper.h" - #include "prio.h" -+#include "discovery.h" - - pgpolicyfn *pgpolicies[] = { - NULL, -@@ -274,17 +275,31 @@ select_checker(struct path *pp) - checker_get(c, pp->hwe->checker_name); - condlog(3, "%s: path checker = %s (controller setting)", - pp->dev, checker_name(c)); -- return 0; -+ goto out; - } - if (conf->checker_name) { - checker_get(c, conf->checker_name); - condlog(3, "%s: path checker = %s (config file default)", - pp->dev, checker_name(c)); -- return 0; -+ goto out; - } - checker_get(c, DEFAULT_CHECKER); - condlog(3, "%s: path checker = %s (internal default)", - pp->dev, checker_name(c)); -+out: -+ if (conf->checker_timeout) { -+ c->timeout = conf->checker_timeout * 1000; -+ condlog(3, "%s: checker timeout = %u ms (config file default)", -+ pp->dev, c->timeout); -+ } -+ else if (sysfs_get_timeout(pp->sysdev, &c->timeout) == 0) -+ condlog(3, "%s: checker timeout = %u ms (sysfs setting)", -+ pp->dev, c->timeout); -+ else { -+ c->timeout = DEF_TIMEOUT; -+ condlog(3, "%s: checker timeout = %u ms (internal default)", -+ pp->dev, c->timeout); -+ } - return 0; - } - -Index: multipath-tools/multipath.conf.annotated -=================================================================== ---- multipath-tools.orig/multipath.conf.annotated -+++ multipath-tools/multipath.conf.annotated -@@ -202,6 +202,15 @@ - # gid disk - # - # # -+# # name : checker_timeout -+# # scope : multipath & multipathd -+# # desc : The timeout to use for path checkers that issue scsi -+# # commands with an explicit timeout, in seconds. -+# # values : n > 0 -+# # default : taken from /sys/block/sd<x>/device/timeout -+# checker_timeout 60 -+# -+# # - # # name : fast_io_fail_tmo - # # scope : multipath & multipathd - # # desc : The number of seconds the scsi layer will wait after a -Index: multipath-tools/libmultipath/discovery.h -=================================================================== ---- multipath-tools.orig/libmultipath/discovery.h -+++ multipath-tools/libmultipath/discovery.h -@@ -36,6 +36,7 @@ int pathinfo (struct path *, vector hwta - struct path * store_pathinfo (vector pathvec, vector hwtable, - char * devname, int flag); - int sysfs_set_scsi_tmo (struct multipath *mpp); -+int sysfs_get_timeout(struct sysfs_device *dev, unsigned int *timeout); - - /* - * discovery bitmask diff --git a/plymouth/patches/plymouth-0.8.6.1-create-missing-links-for-systemd-targets.patch b/plymouth/patches/plymouth-0.8.6.1-create-missing-links-for-systemd-targets.patch new file mode 100644 index 0000000..1e1aa95 --- /dev/null +++ b/plymouth/patches/plymouth-0.8.6.1-create-missing-links-for-systemd-targets.patch @@ -0,0 +1,71 @@ +From edde4e0f2b85c6f298569fe219a08361b99b016b Mon Sep 17 00:00:00 2001 +From: Frederic Crozat <fcrozat(a)suse.com> +Date: Fri, 20 Jul 2012 13:28:31 +0000 +Subject: systemd: create missing links various targets + +--- +diff --git a/systemd-units/Makefile.am b/systemd-units/Makefile.am +index 1545a04..2f5e61f 100644 +--- a/systemd-units/Makefile.am ++++ b/systemd-units/Makefile.am +@@ -13,6 +13,58 @@ systemd_unit_templates = \ + if ENABLE_SYSTEMD_INTEGRATION + systemdunitdir=$(SYSTEMD_UNIT_DIR) + systemdunit_DATA = $(systemd_unit_templates:.in=) ++ ++install-data-hook: ++ $(MKDIR_P) -m 0755 \ ++ $(DESTDIR)$(SYSTEMD_UNIT_DIR)/sysinit.target.wants \ ++ $(DESTDIR)$(SYSTEMD_UNIT_DIR)/multi-user.target.wants \ ++ $(DESTDIR)$(SYSTEMD_UNIT_DIR)/reboot.target.wants \ ++ $(DESTDIR)$(SYSTEMD_UNIT_DIR)/kexec.target.wants \ ++ $(DESTDIR)$(SYSTEMD_UNIT_DIR)/poweroff.target.wants \ ++ $(DESTDIR)$(SYSTEMD_UNIT_DIR)/halt.target.wants ++ (cd $(DESTDIR)$(SYSTEMD_UNIT_DIR)/sysinit.target.wants && \ ++ rm -f plymouth-start.service plymouth-read-write.service && \ ++ $(LN_S) ../plymouth-start.service && \ ++ $(LN_S) ../plymouth-read-write.service) ++ (cd $(DESTDIR)$(SYSTEMD_UNIT_DIR)/multi-user.target.wants && \ ++ rm -f plymouth-quit.service plymouth-quit-wait.service && \ ++ $(LN_S) ../plymouth-quit.service && \ ++ $(LN_S) ../plymouth-quit-wait.service) ++ (cd $(DESTDIR)$(SYSTEMD_UNIT_DIR)/reboot.target.wants && \ ++ rm -f plymouth-reboot.service && \ ++ $(LN_S) ../plymouth-reboot.service) ++ (cd $(DESTDIR)$(SYSTEMD_UNIT_DIR)/kexec.target.wants && \ ++ rm -f plymouth-kexec.service && \ ++ $(LN_S) ../plymouth-kexec.service) ++ (cd $(DESTDIR)$(SYSTEMD_UNIT_DIR)/poweroff.target.wants && \ ++ rm -f plymouth-poweroff.service && \ ++ $(LN_S) ../plymouth-poweroff.service) ++ (cd $(DESTDIR)$(SYSTEMD_UNIT_DIR)/halt.target.wants && \ ++ rm -f plymouth-halt.service && \ ++ $(LN_S) ../plymouth-halt.service) ++ ++uninstall-hook: ++ rm -f \ ++ (cd $(DESTDIR)$(SYSTEMD_UNIT_DIR)/sysinit.target.wants && \ ++ rm -f plymouth-start.service plymouth-read-write.service) \ ++ (cd $(DESTDIR)$(SYSTEMD_UNIT_DIR)/multi-user.target.wants && \ ++ rm -f plymouth-quit.service plymouth-quit-wait.service) \ ++ (cd $(DESTDIR)$(SYSTEMD_UNIT_DIR)/reboot.target.wants && \ ++ rm -f plymouth-reboot.service) \ ++ (cd $(DESTDIR)$(SYSTEMD_UNIT_DIR)/kexec.target.wants && \ ++ rm -f plymouth-kexec.service) \ ++ (cd $(DESTDIR)$(SYSTEMD_UNIT_DIR)/poweroff.target.wants && \ ++ rm -f plymouth-poweroff.service) \ ++ (cd $(DESTDIR)$(SYSTEMD_UNIT_DIR)/halt.target.wants && \ ++ rm -f plymouth-halt.service) \ ++ rmdir --ignore-fail-on-non-empty \ ++ $(DESTDIR)$(SYSTEMD_UNIT_DIR)/sysinit.target.wants \ ++ $(DESTDIR)$(SYSTEMD_UNIT_DIR)/multi-user.target.wants \ ++ $(DESTDIR)$(SYSTEMD_UNIT_DIR)/reboot.target.wants \ ++ $(DESTDIR)$(SYSTEMD_UNIT_DIR)/kexec.target.wants \ ++ $(DESTDIR)$(SYSTEMD_UNIT_DIR)/poweroff.target.wants \ ++ $(DESTDIR)$(SYSTEMD_UNIT_DIR)/halt.target.wants ++ + endif + + EXTRA_DIST = $(systemd_unit_templates) $(systemdunit_DATA) +-- +cgit v0.9.0.2-2-gbebe diff --git a/plymouth/patches/plymouth-no-gtk.patch b/plymouth/patches/plymouth-no-gtk.patch deleted file mode 100644 index 49ab5fc..0000000 --- a/plymouth/patches/plymouth-no-gtk.patch +++ /dev/null @@ -1,31 +0,0 @@ -diff -Nur a/configure.ac b/configure.ac ---- a/configure.ac 2012-06-06 22:21:53.000000000 +0200 -+++ b/configure.ac 2012-06-30 20:55:30.743597988 +0200 -@@ -53,10 +53,6 @@ - AC_SUBST(PANGO_LIBS) - fi - --PKG_CHECK_MODULES(GTK, [gtk+-2.0 >= 2.12.0 ]) --AC_SUBST(GTK_CFLAGS) --AC_SUBST(GTK_LIBS) -- - AC_ARG_ENABLE(libdrm_intel, AS_HELP_STRING([--enable-libdrm_intel],[enable building with libdrm_intel support]),enable_libdrm_intel=$enableval,enable_libdrm_intel=no) - AM_CONDITIONAL(ENABLE_LIBDRM_INTEL, [test "$enable_libdrm_intel" = yes]) - -diff -Nur a/src/Makefile.am b/src/Makefile.am ---- a/src/Makefile.am 2012-06-06 16:14:49.000000000 +0200 -+++ b/src/Makefile.am 2012-06-30 20:56:29.714189945 +0200 -@@ -1,4 +1,4 @@ --SUBDIRS = libply libply-splash-core libply-splash-graphics . plugins client viewer tests -+SUBDIRS = libply libply-splash-core libply-splash-graphics . plugins client tests - if ENABLE_UPSTART_MONITORING - SUBDIRS += upstart-bridge - endif -diff -Nur a/src/plugins/renderers/Makefile.am b/src/plugins/renderers/Makefile.am ---- a/src/plugins/renderers/Makefile.am 2012-06-06 16:14:54.000000000 +0200 -+++ b/src/plugins/renderers/Makefile.am 2012-06-30 20:56:59.811483344 +0200 -@@ -1,3 +1,3 @@ --SUBDIRS = frame-buffer x11 drm -+SUBDIRS = frame-buffer drm - - MAINTAINERCLEANFILES = Makefile.in diff --git a/plymouth/plymouth.nm b/plymouth/plymouth.nm index cee24a2..96507de 100644 --- a/plymouth/plymouth.nm +++ b/plymouth/plymouth.nm @@ -4,8 +4,8 @@ ############################################################################### name = plymouth -version = 0.8.5.1 -release = 4 +version = 0.8.6.1 +release = 1 groups = System/Base url = http://www.freedesktop.org/wiki/Software/Plymouth @@ -47,6 +47,7 @@ build configure_options += \ --libexecdir=/usr/lib \ --disable-libkms \ + --disable-gtk \ --enable-tracing \ --disable-tests \ --with-logo=%{datadir}/pixmaps/system-logo-white.png \ @@ -83,23 +84,6 @@ build cp -vf %{DIR_SOURCE}/plymouth-update-initrd \ %{BUILDROOT}/usr/lib/plymouth/plymouth-update-initrd chmod 755 %{BUILDROOT}/usr/lib/plymouth/plymouth-update-initrd - - # XXX - may we can remove this at a later time. - # - # Enable plymouth systemd service files and link them to the correct targets. - mkdir -pv %{BUILDROOT}%{unitdir}/halt.target.wants - mkdir -pv %{BUILDROOT}%{unitdir}/multi-user.target.wants - mkdir -pv %{BUILDROOT}%{unitdir}/poweroff.target.wants - mkdir -pv %{BUILDROOT}%{unitdir}/reboot.target.wants - mkdir -pv %{BUILDROOT}%{unitdir}/sysinit.target.wants - - ln -svf ../plymouth-halt.service %{BUILDROOT}%{unitdir}/halt.target.wants/plymouth-halt.service - ln -svf ../plymouth-quit.service %{BUILDROOT}%{unitdir}/multi-user.target.wants/plymouth-quit.service - ln -svf ../plymouth-quit-wait.service %{BUILDROOT}%{unitdir}/multi-user.target.wants/plymouth-quit-wait.service - ln -svf ../plymouth-poweroff.service %{BUILDROOT}%{unitdir}/poweroff.target.wants/plymouth-poweroff.service - ln -svf ../plymouth-reboot.service %{BUILDROOT}%{unitdir}/reboot.target.wants/plymouth-reboot.service - ln -svf ../plymouth-read-write.service %{BUILDROOT}%{unitdir}/sysinit.target.wants/plymouth-read-write.service - ln -svf ../plymouth-start.service %{BUILDROOT}%{unitdir}/sysinit.target.wants/plymouth-start.service end end hooks/post-receive -- IPFire 3.x development tree

1 0

[IPFire-SCM] [git.ipfire.org] IPFire 3.x development tree branch, master, updated. a772829da5c360cf15c331bb275df534c653ab61
by git＠ipfire.org 29 Jul '12

29 Jul '12

1 0

[IPFire-SCM] [git.ipfire.org] IPFire 3.x development tree branch, master, updated. cf106a2116fe4643499d8afa5b5e68e19d63f465
by git＠ipfire.org 29 Jul '12

29 Jul '12

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "IPFire 3.x development tree". The branch, master has been updated via cf106a2116fe4643499d8afa5b5e68e19d63f465 (commit) via 755fe9863249649ec57a1d9557f16f253ba52b9b (commit) via e633b4ff0a5c0212a8c6416e797b50c9588eb4be (commit) from 74af03130fc87ecb5a25b23d39ff03c2f2c971a7 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit cf106a2116fe4643499d8afa5b5e68e19d63f465 Author: Stefan Schantl <stefan.schantl(a)ipfire.org> Date: Sun Jul 29 15:06:01 2012 +0200 rsyslog: Don't automatically enable this service anymore. As a result after the movement to journald as logging daemon we don't want to autostart the rsyslog after reboot. Fixes #10199. commit 755fe9863249649ec57a1d9557f16f253ba52b9b Author: Stefan Schantl <stefan.schantl(a)ipfire.org> Date: Sun Jul 29 14:58:21 2012 +0200 systemd: Use journald for system and kernel logging. From now we will use the shipped journal daemon, to log and watch our messages from system and kernel. Reference #10199. commit e633b4ff0a5c0212a8c6416e797b50c9588eb4be Author: Stefan Schantl <stefan.schantl(a)ipfire.org> Date: Thu Jul 26 21:14:51 2012 +0200 systemd: Update to 187. Permanently disable testsuite, because it isn't working in our chroot environment. ----------------------------------------------------------------------- Summary of changes: rsyslog/rsyslog.nm | 9 +++--- ...md-44-ipfire.patch => systemd-187-ipfire.patch} | 29 +++++++++---------- systemd/systemd.nm | 26 +++++++++++++---- 3 files changed, 39 insertions(+), 25 deletions(-) rename systemd/patches/{systemd-44-ipfire.patch => systemd-187-ipfire.patch} (60%) Difference in files: diff --git a/rsyslog/rsyslog.nm b/rsyslog/rsyslog.nm index 70ceb94..1956a38 100644 --- a/rsyslog/rsyslog.nm +++ b/rsyslog/rsyslog.nm @@ -5,7 +5,7 @@ name = rsyslog version = 5.8.6 -release = 3 +release = 4 groups = System/Daemons url = http://www.rsyslog.com/ @@ -74,8 +74,6 @@ packages [ -f "${n}" ] && continue umask 066 && touch ${n} done - - /bin/systemctl enable rsyslog.service >/dev/null 2>&1 || : end script preun @@ -87,9 +85,12 @@ packages /bin/systemctl daemon-reload >/dev/null 2>&1 || : end + # Disable and stop rsyslog after update, because we use the + # journal daemon from systemd from now. script postup /bin/systemctl daemon-reload >/dev/null 2>&1 || : - /bin/systemctl try-restart rsyslog.service >/dev/null 2>&1 || : + /bin/systemctl disable rsyslog.service >/dev/null 2>&1 || : + /bin/systemctl stop rsyslog.service >/dev/null 2>&1 || : end end diff --git a/systemd/patches/systemd-187-ipfire.patch b/systemd/patches/systemd-187-ipfire.patch new file mode 100644 index 0000000..fbd8ea6 --- /dev/null +++ b/systemd/patches/systemd-187-ipfire.patch @@ -0,0 +1,33 @@ +diff -Nur a/configure.ac b/configure.ac +--- a/configure.ac 2012-07-20 00:40:32.000000000 +0200 ++++ b/configure.ac 2012-07-26 21:01:58.319135633 +0200 +@@ -504,7 +504,7 @@ + AC_PATH_PROG([XSLTPROC], [xsltproc]) + AM_CONDITIONAL(HAVE_XSLTPROC, test x"$XSLTPROC" != x) + +-AC_ARG_WITH(distro, AS_HELP_STRING([--with-distro=DISTRO],[Specify the distribution to target: One of fedora, suse, debian, ubuntu, arch, gentoo, slackware, altlinux, mandriva, mageia, angstrom or other])) ++AC_ARG_WITH(distro, AS_HELP_STRING([--with-distro=DISTRO],[Specify the distribution to target: One of fedora, suse, debian, ubuntu, arch, gentoo, slackware, altlinux, mandriva, mageia, angstrom, ipfire or other])) + if test "z$with_distro" = "z"; then + if test "$cross_compiling" = yes; then + AC_MSG_WARN([Target distribution cannot be reliably detected when cross-compiling. You should specify it with --with-distro (see $0 --help for recognized distros)]) +@@ -587,6 +587,12 @@ + AC_DEFINE(TARGET_MAGEIA, [], [Target is Mageia]) + M4_DEFINES=-DTARGET_MAGEIA=1 + ;; ++ ipfire) ++ SYSTEM_SYSVINIT_PATH= ++ SYSTEM_SYSVRCND_PATH= ++ AC_DEFINE(TARGET_IPFIRE, [], [Target is IPFire]) ++ M4_DEFINES=-DTARGET_IPFIRE=1 ++ ;; + other) + ;; + *) +@@ -639,6 +645,7 @@ + AM_CONDITIONAL(TARGET_MANDRIVA, test x"$with_distro" = xmandriva) + AM_CONDITIONAL(TARGET_ANGSTROM, test x"$with_distro" = xangstrom) + AM_CONDITIONAL(TARGET_MAGEIA, test x"$with_distro" = xmageia) ++AM_CONDITIONAL(TARGET_IPFIRE, test x"$with_distro" = xipfire) + + AM_CONDITIONAL(HAVE_SYSV_COMPAT, test "$SYSTEM_SYSV_COMPAT" = "yes") + diff --git a/systemd/patches/systemd-44-ipfire.patch b/systemd/patches/systemd-44-ipfire.patch deleted file mode 100644 index 6dca550..0000000 --- a/systemd/patches/systemd-44-ipfire.patch +++ /dev/null @@ -1,34 +0,0 @@ -diff -Nur a/configure.ac b/configure.ac ---- a/configure.ac 2012-03-16 01:46:57.000000000 +0100 -+++ b/configure.ac 2012-03-24 20:43:33.723789319 +0100 -@@ -396,7 +396,7 @@ - - AC_PATH_PROG([M4], [m4]) - --AC_ARG_WITH(distro, AS_HELP_STRING([--with-distro=DISTRO],[Specify the distribution to target: One of fedora, suse, debian, ubuntu, arch, gentoo, slackware, altlinux, mandriva, meego, mageia, angstrom or other])) -+AC_ARG_WITH(distro, AS_HELP_STRING([--with-distro=DISTRO],[Specify the distribution to target: One of fedora, suse, debian, ubuntu, arch, gentoo, slackware, altlinux, mandriva, meego, mageia, angstrom, ipfire or other])) - if test "z$with_distro" = "z"; then - if test "$cross_compiling" = yes; then - AC_MSG_WARN([Target distribution cannot be reliably detected when cross-compiling. You should specify it with --with-distro (see $0 --help for recognized distros)]) -@@ -492,6 +492,13 @@ - M4_DISTRO_FLAG=-DTARGET_MAGEIA=1 - have_plymouth=yes - ;; -+ ipfire) -+ SYSTEM_SYSVINIT_PATH= -+ SYSTEM_SYSVRCND_PATH= -+ AC_DEFINE(TARGET_IPFIRE, [], [Target is IPFire]) -+ M4_DEFINES=-DTARGET_IPFIRE=1 -+ have_plymouth=yes -+ ;; - other) - ;; - *) -@@ -550,6 +557,7 @@ - AM_CONDITIONAL(TARGET_MEEGO, test x"$with_distro" = xmeego) - AM_CONDITIONAL(TARGET_ANGSTROM, test x"$with_distro" = xangstrom) - AM_CONDITIONAL(TARGET_MAGEIA, test x"$with_distro" = xmageia) -+AM_CONDITIONAL(TARGET_IPFIRE, test x"$with_distro" = xipfire) - - AM_CONDITIONAL(HAVE_PLYMOUTH, test "$have_plymouth" = "yes") - AM_CONDITIONAL(HAVE_SYSV_COMPAT, test "$SYSTEM_SYSV_COMPAT" = "yes") diff --git a/systemd/systemd.nm b/systemd/systemd.nm index 30e72e1..b3575f6 100644 --- a/systemd/systemd.nm +++ b/systemd/systemd.nm @@ -4,8 +4,8 @@ ############################################################################### name = systemd -version = 186 -release = 1 +version = 187 +release = 2 maintainer = Stefan Schantl <stefan.schantl(a)ipfire.org> groups = System/Base @@ -58,11 +58,10 @@ build ./autogen.sh ac end - test - make check - end - install_cmds + # Create folder in log to store the journal. + mkdir -pv %{BUILDROOT}/var/log/journal + # Create sysv compatible symlinks. mkdir -pv %{BUILDROOT}%{sbindir} ln -svf ../lib/systemd/systemd %{BUILDROOT}/%{sbindir}/init @@ -108,6 +107,13 @@ build # Remove unneeded symlink for xdg rm -rfv %{BUILDROOT}/etc/xdg/systemd + + # Use journald. Enable the import of kernel messages. + # Stop forwarding to a syslog daemon. + sed \ + -e "s/^#ForwardToSyslog=.*$/ForwardToSyslog=no/" \ + -e "s/^#ImportKernel=.*$/ImportKernel=yes/" \ + -i %{BUILDROOT}/etc/systemd/journald.conf end end @@ -134,12 +140,14 @@ packages /sbin/reboot /sbin/shutdown + syslog udev = %{thisver} end conflicts dracut < 019 filesystem < 002 + rsyslog < 5.8.6-4 upstart end @@ -199,6 +207,12 @@ packages # Restart login service after update /usr/bin/systemctl daemon-reload >/dev/null 2>&1 || : /usr/bin/systemctl try-restart systemd-logind.service >/dev/null 2>&1 || : + + # Use the new journald configuration file and restart the service. + if ! grep -xq ImportKernel=yes /etc/systemd/journald.conf ; then + mv /etc/systemd/journald.conf.paknew /etc/systemd/journald.conf + /usr/bin/systemctl restart systemd-journald.service >/dev/null 2>&1 || : + fi end # Be sure to start the new udev after everything is done. hooks/post-receive -- IPFire 3.x development tree

1 0

[IPFire-SCM] [git.ipfire.org] IPFire 2.x development tree branch, kernel-update, updated. d0cd3ef6b93217a9f5d7364ad4f3412b05684684
by git＠ipfire.org 29 Jul '12

29 Jul '12

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "IPFire 2.x development tree". The branch, kernel-update has been updated via d0cd3ef6b93217a9f5d7364ad4f3412b05684684 (commit) from df1374700091096fcf75a2560e4894e9a8752e8b (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit d0cd3ef6b93217a9f5d7364ad4f3412b05684684 Author: Arne Fitzenreiter <arne_f(a)ipfire.org> Date: Sun Jul 29 18:46:44 2012 +0200 linux-xen: add linux2 lfs for xen kernel and header. ----------------------------------------------------------------------- Summary of changes: config/rootfiles/packages/linux-xen | 3882 +++++++++++++++++----------------- lfs/linux-xen | 2 +- lfs/{linux => linux2} | 0 make.sh | 8 +- src/paks/linux-xen/install.sh | 2 +- 5 files changed, 1948 insertions(+), 1946 deletions(-) copy lfs/{linux => linux2} (100%) Difference in files: diff --git a/config/rootfiles/packages/linux-xen b/config/rootfiles/packages/linux-xen index e9a6656..ec6b99a 100644 --- a/config/rootfiles/packages/linux-xen +++ b/config/rootfiles/packages/linux-xen @@ -1,1946 +1,1946 @@ -boot/System.map-KVER-ipfire-xen +boot/System.map-2.6.32.59-ipfire-xen boot/System.map-ipfire-xen -boot/config-KVER-ipfire-xen -boot/vmlinuz-KVER-ipfire-xen +boot/config-2.6.32.59-ipfire-xen +boot/vmlinuz-2.6.32.59-ipfire-xen boot/vmlinuz-ipfire-xen #lib/firmware/bnx2x-e1-5.0.21.0.fw #lib/firmware/bnx2x-e1h-5.0.21.0.fw #lib/modules -lib/modules/KVER-ipfire-xen -#lib/modules/KVER-ipfire-xen/build -#lib/modules/KVER-ipfire-xen/kernel -#lib/modules/KVER-ipfire-xen/kernel/arch -#lib/modules/KVER-ipfire-xen/kernel/arch/x86 -#lib/modules/KVER-ipfire-xen/kernel/arch/x86/crypto -#lib/modules/KVER-ipfire-xen/kernel/arch/x86/crypto/aes-i586.ko -#lib/modules/KVER-ipfire-xen/kernel/arch/x86/crypto/crc32c-intel.ko -#lib/modules/KVER-ipfire-xen/kernel/arch/x86/crypto/salsa20-i586.ko -#lib/modules/KVER-ipfire-xen/kernel/arch/x86/crypto/twofish-i586.ko -#lib/modules/KVER-ipfire-xen/kernel/arch/x86/kernel -#lib/modules/KVER-ipfire-xen/kernel/arch/x86/kernel/microcode.ko -#lib/modules/KVER-ipfire-xen/kernel/arch/x86/kernel/msr.ko -#lib/modules/KVER-ipfire-xen/kernel/arch/x86/kernel/scx200.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto -#lib/modules/KVER-ipfire-xen/kernel/crypto/aes_generic.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/ansi_cprng.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/anubis.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/arc4.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/async_tx -#lib/modules/KVER-ipfire-xen/kernel/crypto/async_tx/async_memcpy.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/async_tx/async_pq.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/async_tx/async_raid6_recov.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/async_tx/async_tx.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/async_tx/async_xor.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/authenc.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/blowfish.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/camellia.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/cast5.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/cast6.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/cbc.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/ccm.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/crc32c.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/cryptd.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/ctr.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/cts.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/des_generic.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/ecb.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/fcrypt.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/gcm.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/gf128mul.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/ghash-generic.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/khazad.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/lrw.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/lzo.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/md5.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/michael_mic.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/pcbc.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/rmd128.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/rmd160.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/rmd256.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/rmd320.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/salsa20_generic.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/seed.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/seqiv.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/serpent.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/sha1_generic.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/sha256_generic.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/sha512_generic.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/tea.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/tgr192.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/twofish.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/twofish_common.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/vmac.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/wp512.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/xcbc.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/xor.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/xts.ko -#lib/modules/KVER-ipfire-xen/kernel/crypto/zlib.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers -#lib/modules/KVER-ipfire-xen/kernel/drivers/acpi -#lib/modules/KVER-ipfire-xen/kernel/drivers/acpi/ac.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/acpi/acpi_pad.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/acpi/battery.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/acpi/button.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/acpi/container.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/acpi/fan.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/acpi/pci_slot.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/acpi/power_meter.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/acpi/processor.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/acpi/sbs.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/acpi/sbshc.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/acpi/thermal.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/acpi/video.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/ata -#lib/modules/KVER-ipfire-xen/kernel/drivers/ata/ahci.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/ata/ata_generic.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/ata/ata_piix.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/ata/libata.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/ata/pata_acpi.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/ata/pata_ali.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/ata/pata_amd.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/ata/pata_artop.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/ata/pata_atiixp.ko 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-#lib/modules/KVER-ipfire-xen/kernel/drivers/ata/sata_sil.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/ata/sata_sil24.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/ata/sata_sis.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/ata/sata_svw.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/ata/sata_sx4.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/ata/sata_uli.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/ata/sata_via.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/ata/sata_vsc.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/atm -#lib/modules/KVER-ipfire-xen/kernel/drivers/atm/ambassador.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/atm/atmtcp.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/atm/eni.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/atm/firestream.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/atm/fore_200e.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/atm/he.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/atm/horizon.ko 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-#lib/modules/KVER-ipfire-xen/kernel/drivers/block/floppy.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/block/nbd.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/block/osdblk.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/block/sx8.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/bluetooth -#lib/modules/KVER-ipfire-xen/kernel/drivers/bluetooth/bcm203x.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/bluetooth/bfusb.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/bluetooth/bluecard_cs.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/bluetooth/bpa10x.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/bluetooth/bt3c_cs.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/bluetooth/btmrvl.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/bluetooth/btmrvl_sdio.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/bluetooth/btsdio.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/bluetooth/btuart_cs.ko -#lib/modules/KVER-ipfire-xen/kernel/drivers/bluetooth/btusb.ko 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+#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/pcmcia/pdaudiocf/snd-pdaudiocf.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/pcmcia/vx +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/pcmcia/vx/snd-vxpocket.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-ad73311.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-ak4535.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-ak4642.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-cs4270.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-l3.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-max9877.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-pcm3008.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-spdif.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-ssm2602.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-tlv320aic23.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-tlv320aic3x.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-uda134x.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-uda1380.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm-hubs.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8350.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8400.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8510.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8523.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8580.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8728.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8731.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8750.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8753.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8776.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8900.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8903.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8940.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8960.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8961.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8971.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8974.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8988.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8990.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm8993.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/codecs/snd-soc-wm9081.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soc/snd-soc-core.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/soundcore.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/synth +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/synth/emux +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/synth/emux/snd-emux-synth.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/synth/snd-util-mem.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/usb +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/usb/caiaq +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/usb/caiaq/snd-usb-caiaq.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/usb/snd-usb-audio.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/usb/snd-usb-lib.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/usb/usx2y +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/usb/usx2y/snd-usb-us122l.ko +#lib/modules/2.6.32.59-ipfire-xen/kernel/sound/usb/usx2y/snd-usb-usx2y.ko +#lib/modules/2.6.32.59-ipfire-xen/modules.alias +#lib/modules/2.6.32.59-ipfire-xen/modules.alias.bin +#lib/modules/2.6.32.59-ipfire-xen/modules.ccwmap +#lib/modules/2.6.32.59-ipfire-xen/modules.dep +#lib/modules/2.6.32.59-ipfire-xen/modules.dep.bin +#lib/modules/2.6.32.59-ipfire-xen/modules.ieee1394map +#lib/modules/2.6.32.59-ipfire-xen/modules.inputmap +#lib/modules/2.6.32.59-ipfire-xen/modules.isapnpmap +#lib/modules/2.6.32.59-ipfire-xen/modules.ofmap +#lib/modules/2.6.32.59-ipfire-xen/modules.order +#lib/modules/2.6.32.59-ipfire-xen/modules.pcimap +#lib/modules/2.6.32.59-ipfire-xen/modules.seriomap +#lib/modules/2.6.32.59-ipfire-xen/modules.symbols +#lib/modules/2.6.32.59-ipfire-xen/modules.symbols.bin +#lib/modules/2.6.32.59-ipfire-xen/modules.usbmap +#lib/modules/2.6.32.59-ipfire-xen/source diff --git a/lfs/linux-xen b/lfs/linux-xen index 356fc8f..d0ac8e8 100644 --- a/lfs/linux-xen +++ b/lfs/linux-xen @@ -1,7 +1,7 @@ ############################################################################### # # # IPFire.org - A linux based firewall # -# Copyright (C) 2010 IPFire Team <info(a)ipfire.org> # +# Copyright (C) 2007-2012 IPFire Team <info(a)ipfire.org> # # # # This program is free software: you can redistribute it and/or modify # # it under the terms of the GNU General Public License as published by # diff --git a/lfs/linux2 b/lfs/linux2 new file mode 100644 index 0000000..fc60de2 --- /dev/null +++ b/lfs/linux2 @@ -0,0 +1,260 @@ +############################################################################### +# # +# IPFire.org - A linux based firewall # +# Copyright (C) 2007-2012 IPFire Team <info(a)ipfire.org> # +# # +# This program is free software: you can redistribute it and/or modify # +# it under the terms of the GNU General Public License as published by # +# the Free Software Foundation, either version 3 of the License, or # +# (at your option) any later version. # +# # +# This program is distributed in the hope that it will be useful, # +# but WITHOUT ANY WARRANTY; without even the implied warranty of # +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # +# GNU General Public License for more details. # +# # +# You should have received a copy of the GNU General Public License # +# along with this program. If not, see <http://www.gnu.org/licenses/>. # +# # +############################################################################### + +############################################################################### +# Definitions +############################################################################### + +include Config + +PATCHLEVEL = .59 +VER = 2.6.32.59 + +THISAPP = linux-$(VER) +DL_FILE = $(THISAPP).tar.bz2 +DL_FROM = $(URL_IPFIRE) +DIR_APP = $(DIR_SRC)/$(THISAPP) +CFLAGS = +CXXFLAGS = + +PAK_VER = 20 +DEPS = "" + +# Normal build or XEN build. +# + +VERSUFIX=ipfire$(KCFG) + +ifeq "$(HEADERS)" "1" +ifeq "$(TOOLS)" "1" + TARGET = $(DIR_INFO)/linux-libc-headers-$(VER)-$(VERSUFIX)-tools + HEADERS_PREFIX = /tools +else + TARGET = $(DIR_INFO)/linux-libc-headers-$(VER)-$(VERSUFIX) + HEADERS_PREFIX = /usr +endif +else + TARGET = $(DIR_INFO)/linux-$(VER)-$(VERSUFIX) +endif + +ifeq "$(MACHINE_TYPE)" "arm" + HEADERS_ARCH=arm +else + HEADERS_ARCH=x86 +endif + +ifeq "$(KCFG)" "" +LASTKERNEL=1 +endif +ifeq "$(KCFG)" "-kirkwood" +LASTKERNEL=1 +endif + +############################################################################### +# Top-level Rules +############################################################################### +objects =$(DL_FILE) \ + netfilter-layer7-v2.22.tar.gz \ + patch-2.6.16-nath323-1.3.bz2 \ + reiser4-for-2.6.32.patch.bz2 \ + xen-patches-2.6.32-2f.tar.bz2 + +$(DL_FILE) = $(URL_IPFIRE)/$(DL_FILE) +netfilter-layer7-v2.22.tar.gz = $(URL_IPFIRE)/netfilter-layer7-v2.22.tar.gz +patch-2.6.16-nath323-1.3.bz2 = $(URL_IPFIRE)/patch-2.6.16-nath323-1.3.bz2 +reiser4-for-2.6.32.patch.bz2 = $(URL_IPFIRE)/reiser4-for-2.6.32.patch.bz2 +xen-patches-2.6.32-2f.tar.bz2 = $(URL_IPFIRE)/xen-patches-2.6.32-2f.tar.bz2 + +$(DL_FILE)_MD5 = 69c68c4a8eb0f04b051a7dbcff16f6d0 +netfilter-layer7-v2.22.tar.gz_MD5 = 98dff8a3d5a31885b73341633f69501f +patch-2.6.16-nath323-1.3.bz2_MD5 = f926409ff703a307baf54b57ab75d138 +reiser4-for-2.6.32.patch.bz2_MD5 = 3246397973d9271eb8e6d7c97c5d2d91 +xen-patches-2.6.32-2f.tar.bz2_MD5 = b59d6f89e11accb9d40354418e13f31b + +install : $(TARGET) + +check : $(patsubst %,$(DIR_CHK)/%,$(objects)) + +download :$(patsubst %,$(DIR_DL)/%,$(objects)) + +md5 : $(subst %,%_MD5,$(objects)) + +dist: + @$(PAK) +############################################################################### +# Downloading, checking, md5sum +############################################################################### + +$(patsubst %,$(DIR_CHK)/%,$(objects)) : + @$(CHECK) + +$(patsubst %,$(DIR_DL)/%,$(objects)) : + @$(LOAD) + +$(subst %,%_MD5,$(objects)) : + @$(MD5) + +############################################################################### +# Installation Details +############################################################################### + +$(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects)) + @$(PREBUILD) + @rm -rf $(DIR_APP) $(DIR_SRC)/linux $(DIR_SRC)/linux-*-suse_xen_patches $(DIR_SRC)/xen-* && cd $(DIR_SRC) && tar axf $(DIR_DL)/$(DL_FILE) + + ln -svf linux-$(VER) $(DIR_SRC)/linux + +ifeq "$(KCFG)" "-xen" + # Apply gentoo Xen patches + mkdir -p $(DIR_SRC)/xen-patches + cd $(DIR_SRC)/xen-patches && tar jxf $(DIR_DL)/xen-patches-2.6.32-2f.tar.bz2 + + for x in `ls -1 $(DIR_SRC)/xen-patches/*.patch1`; do \ + echo "*********** [Patch: $$x]"; \ + cd $(DIR_APP) && pwd && patch -Np1 < $$x || exit 1; \ + done + rm -rf $(DIR_SRC)/xen-patches + + # Linux Intermediate Queueing Device + cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.32.8-xen-imq-test2.patch +else + # Linux Intermediate Queueing Device + cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.32-imq-test2.patch +endif + + # Not report deprecated syscall 1.23 (for kudzu) + cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.25.18-not_report_sysctl_1.23.patch + + # Reiser4 (don't check if fail (some patches are already in xen patchset) + -cd $(DIR_APP) && bzcat $(DIR_DL)/reiser4-for-2.6.32.patch.bz2 | patch -Np1 + + # ipp2p 0.8.2-pomng + cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.32.8-ipp2p-0.8.2-pomng.patch + + # Layer7-patch + cd $(DIR_SRC) && rm -rf $(DIR_SRC)/netfilter-layer7-v2.22 + cd $(DIR_SRC) && tar xzf $(DIR_DL)/netfilter-layer7-v2.22.tar.gz + cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/netfilter-layer7-v2.22/kernel-2.6.25-2.6.28-layer7-2.22.patch + + # Add some more LED triggers + cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.32.11-netdev-1.patch + + # Huawei Android Phones (Vodafone V845, T-Mobile Pulse/mini ...) + cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.32.15-option_add_huawei_android.patch + + # Fix uevent PHYSDEVDRIVER + cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.32.27_ipg-fix-driver-name.patch + cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.32.27_mcs7830-fix-driver-name.patch + + # Fix mv_cesa + cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.32-crypto-mv_cesa.patch + +ifeq "$(KCFG)" "-kirkwood" + # Add dreamplug,guruplug and icy 62x0 support on ARM-kirkwood + cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.32.57-arm_kirkwood_setups.patch +endif + +ifeq "$(MACHINE_TYPE)" "arm" + cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.32.45_align_ssb_modtable_32bit_boundary.patch +endif + +ifeq "$(HEADERS)" "1" + # Install the header files + cd $(DIR_APP) && make ARCH=$(HEADERS_ARCH) INSTALL_HDR_PATH=dest headers_install + -mkdir -pv $(BUILDROOT)/$(HEADERS_PREFIX)/include + cd $(DIR_APP) && find dest/include $ -name .install -o -name ..install.cmd $ -delete + cd $(DIR_APP) && cp -rv dest/include/* $(BUILDROOT)/$(HEADERS_PREFIX)/include +else + + # Install ipfire logo + cd $(DIR_APP) && cp -vf $(DIR_SRC)/config/kernel/ipfire_logo.ppm \ + drivers/video/logo/logo_linux_clut224.ppm + + # Cleanup kernel source + cp $(DIR_SRC)/config/kernel/kernel.config.$(MACHINE)-$(VERSUFIX) $(DIR_APP)/.config + cd $(DIR_APP) && make CC="$(KGCC)" oldconfig + cd $(DIR_APP) && make CC="$(KGCC)" clean + cd $(DIR_APP) && sed -i -e 's/EXTRAVERSION\ =.*/EXTRAVERSION\ =\ $(PATCHLEVEL)-$(VERSUFIX)/' Makefile + +ifeq "$(KCFG)" "-xen" + cd $(DIR_APP) && make $(MAKETUNING) CC="$(KGCC)" vmlinuz + cd $(DIR_APP) && cp -v arch/i386/boot/vmlinuz /boot/vmlinuz-$(VER)-$(VERSUFIX) +else +ifeq "$(KCFG)" "-kirkwood" + cd $(DIR_APP) && make $(MAKETUNING) CC="$(KGCC)" uImage + cd $(DIR_APP) && cp -v arch/arm/boot/uImage /boot/vmlinuz-$(VER)-$(VERSUFIX) + cd $(DIR_APP) && cp -v arch/arm/boot/uImage /boot/uImage-$(VERSUFIX) +else +ifeq "$(KCFG)" "-versatile" + cd $(DIR_APP) && make $(MAKETUNING) CC="$(KGCC)" zImage + cd $(DIR_APP) && cp -v arch/arm/boot/zImage /boot/vmlinuz-$(VER)-$(VERSUFIX) +else + cd $(DIR_APP) && make $(MAKETUNING) CC="$(KGCC)" bzImage + cd $(DIR_APP) && cp -v arch/i386/boot/bzImage /boot/vmlinuz-$(VER)-$(VERSUFIX) +endif +endif +endif + cd $(DIR_APP) && cp -v System.map /boot/System.map-$(VER)-$(VERSUFIX) + cd $(DIR_APP) && cp -v .config /boot/config-$(VER)-$(VERSUFIX) + ln -sf vmlinuz-$(VER)-$(VERSUFIX) /boot/vmlinuz-$(VERSUFIX) + ln -sf System.map-$(VER)-$(VERSUFIX) /boot/System.map-$(VERSUFIX) + cd $(DIR_APP) && make CC="$(KGCC)" $(MAKETUNING) modules + cd $(DIR_APP) && make CC="$(KGCC)" $(MAKETUNING) modules_install + cd $(DIR_APP) && make CC="$(KGCC)" $(MAKETUNING) firmware_install + +ifeq "$(LASTKERNEL)" "1" + # Only do this once + cd $(DIR_APP) && install -m 755 usr/gen_init_cpio /sbin/ + + # Blacklist matroxfb_base + echo "blacklist matroxfb_base" >> /etc/modprobe.d/framebuffer + # Blacklist old framebuffer modules + for f in $$(find /lib/modules/$(VER)-$(VERSUFIX)/kernel/drivers/video -name *fb.ko); do \ + echo "blacklist $$(basename $$f)" >> /etc/modprobe.d/framebuffer ; \ + done + # Blacklist new drm framebuffer modules + for f in $$(ls -1 /lib/modules/$(VER)-$(VERSUFIX)/kernel/drivers/gpu/drm/*/*.ko); do \ + echo "blacklist $$(basename $$f)" >> /etc/modprobe.d/framebuffer ; \ + done + sed -i -e "s|.ko||g" /etc/modprobe.d/framebuffer + + # Blacklist isdn modules + for f in $$(find /lib/modules/$(VER)-$(VERSUFIX)/kernel/drivers/isdn -name *.ko); do \ + echo "blacklist $$(basename $$f)" >> /etc/modprobe.d/isdn ; \ + done + sed -i -e "s|.ko||g" /etc/modprobe.d/isdn + + # Disable ipv6 at runtime + echo "options ipv6 disable_ipv6=1" > /etc/modprobe.d/ipv6 +endif + + # Remove mISDN modules + rm -rvf /lib/modules/$(VER)-$(VERSUFIX)/kernel/drivers/isdn/mISDN + rm -rvf /lib/modules/$(VER)-$(VERSUFIX)/kernel/drivers/isdn/hardware/mISDN + +ifneq "$(MACHINE_TYPE)" "arm" + # Disable geode_aes modul + mv /lib/modules/$(VER)-$(VERSUFIX)/kernel/drivers/crypto/geode-aes.ko \ + /lib/modules/$(VER)-$(VERSUFIX)/kernel/drivers/crypto/geode-aes.ko.off +endif +endif + + @rm -rf $(DIR_SRC)/patch-o-matic* $(DIR_SRC)/iptables* $(DIR_SRC)/squashfs* $(DIR_SRC)/netfilter-layer7-* + @$(POSTBUILD) diff --git a/make.sh b/make.sh index 84447f5..2f2c79c 100755 --- a/make.sh +++ b/make.sh @@ -265,7 +265,7 @@ buildtoolchain() { lfsmake1 binutils PASS=1 lfsmake1 gcc PASS=1 export PATH=$BASEDIR/build/usr/local/bin:$BASEDIR/build/tools/bin:$PATH - lfsmake1 linux TOOLS=1 HEADERS=1 + lfsmake1 linux2 TOOLS=1 HEADERS=1 lfsmake1 glibc lfsmake1 cleanup-toolchain PASS=1 lfsmake1 fake-environ @@ -302,7 +302,7 @@ buildbase() { LOGFILE="$BASEDIR/log/_build.base.log" export LOGFILE lfsmake2 stage2 - lfsmake2 linux HEADERS=1 + lfsmake2 linux2 HEADERS=1 lfsmake2 man-pages lfsmake2 glibc lfsmake2 tzdata @@ -382,7 +382,7 @@ buildipfire() { # The xen and PAE kernels are only available for x86 if [ "${MACHINE_TYPE}" != "arm" ]; then - ipfiremake linux KCFG="-xen" + ipfiremake linux2 KCFG="-xen" ipfiremake kqemu KCFG="-xen" ipfiremake v4l-dvb KCFG="-xen" ipfiremake madwifi KCFG="-xen" @@ -396,6 +396,7 @@ buildipfire() { ipfiremake e1000 KCFG="-xen" ipfiremake e1000e KCFG="-xen" ipfiremake igb KCFG="-xen" + ipfiremake linux KCFG="-pae" ipfiremake kqemu KCFG="-pae" ipfiremake kvm-kmod KCFG="-pae" @@ -412,6 +413,7 @@ buildipfire() { ipfiremake e1000 KCFG="-pae" ipfiremake e1000e KCFG="-pae" ipfiremake igb KCFG="-pae" + ipfiremake linux KCFG="" ipfiremake v4l-dvb KCFG="" ipfiremake kqemu KCFG="" diff --git a/src/paks/linux-xen/install.sh b/src/paks/linux-xen/install.sh index 70efa9d..179d607 100644 --- a/src/paks/linux-xen/install.sh +++ b/src/paks/linux-xen/install.sh @@ -24,7 +24,7 @@ . /opt/pakfire/lib/functions.sh extract_files # -KVER=xxxKVERxxx +KVER=2.6.32.59 ROOT=`mount | grep " / " | cut -d" " -f1` ROOTUUID=`blkid -c /dev/null -sUUID $ROOT | cut -d'"' -f2` if [ ! -z $ROOTUUID ]; then hooks/post-receive -- IPFire 2.x development tree

1 0

[IPFire-SCM] [git.ipfire.org] IPFire 2.x development tree branch, kernel-update, updated. df1374700091096fcf75a2560e4894e9a8752e8b
by git＠ipfire.org 29 Jul '12

29 Jul '12

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "IPFire 2.x development tree". The branch, kernel-update has been updated via df1374700091096fcf75a2560e4894e9a8752e8b (commit) via 8e57f223289aeb8cf2eae3246cbd2dbf6ef29a12 (commit) from 50b5d7ce0bc813a35d3daaba150a87c1ae990faa (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit df1374700091096fcf75a2560e4894e9a8752e8b Author: Arne Fitzenreiter <arne_f(a)ipfire.org> Date: Sun Jul 29 16:28:12 2012 +0200 iptables: update to 1.4.14. commit 8e57f223289aeb8cf2eae3246cbd2dbf6ef29a12 Author: Arne Fitzenreiter <arne_f(a)ipfire.org> Date: Sun Jul 29 16:24:05 2012 +0200 miniupnpd: fix for build with newer iptables. IPT_ALIGN is replaces by XT_ALIGN since iptables 1.4 and the compatiblity macro is removed in 1.4.14. ----------------------------------------------------------------------- Summary of changes: config/rootfiles/common/iptables | 116 ++++--------- lfs/iptables | 10 +- lfs/miniupnpd | 5 +- ..._test1.patch => iptables-1.4.12-IMQ-test4.diff} | 47 ++++-- ...ch => iptables-1.4.14-ipp2p-0.8.2-ipfire.patch} | 4 +- src/patches/iptables-1.4.6-errorno_includes.patch | 170 -------------------- src/patches/miniupnpd-1.4_use_XT_ALIGN.patch | 47 ++++++ 7 files changed, 124 insertions(+), 275 deletions(-) rename src/patches/{iptables-1.4.6-imq_test1.patch => iptables-1.4.12-IMQ-test4.diff} (60%) rename src/patches/{iptables-1.4.6-ipp2p-0.8.2-pomng.patch => iptables-1.4.14-ipp2p-0.8.2-ipfire.patch} (99%) delete mode 100644 src/patches/iptables-1.4.6-errorno_includes.patch create mode 100644 src/patches/miniupnpd-1.4_use_XT_ALIGN.patch Difference in files: diff --git a/config/rootfiles/common/iptables b/config/rootfiles/common/iptables index 8e1a6e4..e958a93 100644 --- a/config/rootfiles/common/iptables +++ b/config/rootfiles/common/iptables @@ -1,21 +1,27 @@ #lib/libip4tc.la lib/libip4tc.so lib/libip4tc.so.0 -lib/libip4tc.so.0.0.0 +lib/libip4tc.so.0.1.0 #lib/libip6tc.la lib/libip6tc.so lib/libip6tc.so.0 -lib/libip6tc.so.0.0.0 -#lib/libipq.a +lib/libip6tc.so.0.1.0 +#lib/libipq.la +lib/libipq.so +lib/libipq.so.0 +lib/libipq.so.0.0.0 #lib/libiptc.la lib/libiptc.so lib/libiptc.so.0 lib/libiptc.so.0.0.0 #lib/libxtables.la lib/libxtables.so -lib/libxtables.so.4 -lib/libxtables.so.4.0.0 +lib/libxtables.so.7 +lib/libxtables.so.7.0.0 #lib/pkgconfig +#lib/pkgconfig/libip4tc.pc +#lib/pkgconfig/libip6tc.pc +#lib/pkgconfig/libipq.pc #lib/pkgconfig/libiptc.pc #lib/pkgconfig/xtables.pc lib/xtables @@ -42,52 +48,62 @@ lib/xtables #lib/xtables/libipt_REDIRECT.so #lib/xtables/libipt_REJECT.so #lib/xtables/libipt_SAME.so -#lib/xtables/libipt_SET.so #lib/xtables/libipt_SNAT.so #lib/xtables/libipt_TTL.so #lib/xtables/libipt_ULOG.so -#lib/xtables/libipt_addrtype.so #lib/xtables/libipt_ah.so -#lib/xtables/libipt_ecn.so #lib/xtables/libipt_icmp.so #lib/xtables/libipt_ipp2p.so #lib/xtables/libipt_realm.so -#lib/xtables/libipt_set.so #lib/xtables/libipt_ttl.so #lib/xtables/libipt_unclean.so +#lib/xtables/libxt_AUDIT.so +#lib/xtables/libxt_CHECKSUM.so #lib/xtables/libxt_CLASSIFY.so #lib/xtables/libxt_CONNMARK.so #lib/xtables/libxt_CONNSECMARK.so +#lib/xtables/libxt_CT.so #lib/xtables/libxt_DSCP.so +#lib/xtables/libxt_IDLETIMER.so #lib/xtables/libxt_IMQ.so +#lib/xtables/libxt_LED.so #lib/xtables/libxt_MARK.so #lib/xtables/libxt_NFLOG.so #lib/xtables/libxt_NFQUEUE.so #lib/xtables/libxt_NOTRACK.so #lib/xtables/libxt_RATEEST.so #lib/xtables/libxt_SECMARK.so +#lib/xtables/libxt_SET.so #lib/xtables/libxt_TCPMSS.so #lib/xtables/libxt_TCPOPTSTRIP.so +#lib/xtables/libxt_TEE.so #lib/xtables/libxt_TOS.so #lib/xtables/libxt_TPROXY.so #lib/xtables/libxt_TRACE.so +#lib/xtables/libxt_addrtype.so #lib/xtables/libxt_cluster.so #lib/xtables/libxt_comment.so #lib/xtables/libxt_connbytes.so #lib/xtables/libxt_connlimit.so #lib/xtables/libxt_connmark.so #lib/xtables/libxt_conntrack.so +#lib/xtables/libxt_cpu.so +#lib/xtables/libxt_dccp.so +#lib/xtables/libxt_devgroup.so #lib/xtables/libxt_dscp.so +#lib/xtables/libxt_ecn.so #lib/xtables/libxt_esp.so #lib/xtables/libxt_hashlimit.so #lib/xtables/libxt_helper.so #lib/xtables/libxt_iprange.so +#lib/xtables/libxt_ipvs.so #lib/xtables/libxt_layer7.so #lib/xtables/libxt_length.so #lib/xtables/libxt_limit.so #lib/xtables/libxt_mac.so #lib/xtables/libxt_mark.so #lib/xtables/libxt_multiport.so +#lib/xtables/libxt_nfacct.so #lib/xtables/libxt_osf.so #lib/xtables/libxt_owner.so #lib/xtables/libxt_physdev.so @@ -96,7 +112,9 @@ lib/xtables #lib/xtables/libxt_quota.so #lib/xtables/libxt_rateest.so #lib/xtables/libxt_recent.so +#lib/xtables/libxt_rpfilter.so #lib/xtables/libxt_sctp.so +#lib/xtables/libxt_set.so #lib/xtables/libxt_socket.so #lib/xtables/libxt_standard.so #lib/xtables/libxt_state.so @@ -108,18 +126,14 @@ lib/xtables #lib/xtables/libxt_tos.so #lib/xtables/libxt_u32.so #lib/xtables/libxt_udp.so -#sbin/ip6tables -#sbin/ip6tables-multi -#sbin/ip6tables-restore -#sbin/ip6tables-save +sbin/ip6tables +sbin/ip6tables-restore +sbin/ip6tables-save sbin/iptables -sbin/iptables-multi -#sbin/iptables-restore -#sbin/iptables-save -#sbin/iptables-xml -#usr/include/asm-generic -#usr/include/asm-generic/errno-base.h -#usr/include/asm-generic/errno.h +sbin/iptables-restore +sbin/iptables-save +sbin/iptables-xml +sbin/xtables-multi #usr/include/iptables #usr/include/iptables.h #usr/include/iptables/internal.h @@ -129,6 +143,7 @@ sbin/iptables-multi #usr/include/libiptc/libip6tc.h #usr/include/libiptc/libiptc.h #usr/include/libiptc/libxtc.h +#usr/include/libiptc/xtcshared.h #usr/include/libipulog #usr/include/libipulog/libipulog.h #usr/include/libnetfilter_queue @@ -139,12 +154,9 @@ sbin/iptables-multi #usr/include/libnfnetlink/libnfnetlink.h #usr/include/libnfnetlink/linux_nfnetlink.h #usr/include/libnfnetlink/linux_nfnetlink_compat.h -#usr/include/linux/netfilter #usr/include/linux/netfilter/Kbuild #usr/include/linux/netfilter/nf_conntrack_amanda.h -#usr/include/linux/netfilter/nf_conntrack_common.h #usr/include/linux/netfilter/nf_conntrack_dccp.h -#usr/include/linux/netfilter/nf_conntrack_ftp.h #usr/include/linux/netfilter/nf_conntrack_h323.h #usr/include/linux/netfilter/nf_conntrack_h323_asn1.h #usr/include/linux/netfilter/nf_conntrack_h323_types.h @@ -152,67 +164,11 @@ sbin/iptables-multi #usr/include/linux/netfilter/nf_conntrack_pptp.h #usr/include/linux/netfilter/nf_conntrack_proto_gre.h #usr/include/linux/netfilter/nf_conntrack_sane.h -#usr/include/linux/netfilter/nf_conntrack_sctp.h #usr/include/linux/netfilter/nf_conntrack_sip.h -#usr/include/linux/netfilter/nf_conntrack_tcp.h #usr/include/linux/netfilter/nf_conntrack_tftp.h -#usr/include/linux/netfilter/nf_conntrack_tuple_common.h -#usr/include/linux/netfilter/nfnetlink.h -#usr/include/linux/netfilter/nfnetlink_compat.h -#usr/include/linux/netfilter/nfnetlink_conntrack.h -#usr/include/linux/netfilter/nfnetlink_log.h -#usr/include/linux/netfilter/nfnetlink_queue.h -#usr/include/linux/netfilter/x_tables.h -#usr/include/linux/netfilter/xt_CLASSIFY.h -#usr/include/linux/netfilter/xt_CONNMARK.h -#usr/include/linux/netfilter/xt_CONNSECMARK.h -#usr/include/linux/netfilter/xt_DSCP.h #usr/include/linux/netfilter/xt_IMQ.h -#usr/include/linux/netfilter/xt_LED.h -#usr/include/linux/netfilter/xt_MARK.h -#usr/include/linux/netfilter/xt_NFLOG.h -#usr/include/linux/netfilter/xt_NFQUEUE.h -#usr/include/linux/netfilter/xt_RATEEST.h -#usr/include/linux/netfilter/xt_SECMARK.h -#usr/include/linux/netfilter/xt_TCPMSS.h -#usr/include/linux/netfilter/xt_TCPOPTSTRIP.h -#usr/include/linux/netfilter/xt_TPROXY.h -#usr/include/linux/netfilter/xt_cluster.h -#usr/include/linux/netfilter/xt_comment.h -#usr/include/linux/netfilter/xt_connbytes.h -#usr/include/linux/netfilter/xt_connlimit.h -#usr/include/linux/netfilter/xt_connmark.h -#usr/include/linux/netfilter/xt_conntrack.h -#usr/include/linux/netfilter/xt_dccp.h -#usr/include/linux/netfilter/xt_dscp.h -#usr/include/linux/netfilter/xt_esp.h -#usr/include/linux/netfilter/xt_hashlimit.h -#usr/include/linux/netfilter/xt_helper.h -#usr/include/linux/netfilter/xt_iprange.h #usr/include/linux/netfilter/xt_layer7.h -#usr/include/linux/netfilter/xt_length.h -#usr/include/linux/netfilter/xt_limit.h -#usr/include/linux/netfilter/xt_mac.h -#usr/include/linux/netfilter/xt_mark.h -#usr/include/linux/netfilter/xt_multiport.h -#usr/include/linux/netfilter/xt_osf.h -#usr/include/linux/netfilter/xt_owner.h -#usr/include/linux/netfilter/xt_physdev.h -#usr/include/linux/netfilter/xt_pkttype.h -#usr/include/linux/netfilter/xt_policy.h -#usr/include/linux/netfilter/xt_quota.h -#usr/include/linux/netfilter/xt_rateest.h -#usr/include/linux/netfilter/xt_realm.h -#usr/include/linux/netfilter/xt_recent.h -#usr/include/linux/netfilter/xt_sctp.h #usr/include/linux/netfilter/xt_socket.h -#usr/include/linux/netfilter/xt_state.h -#usr/include/linux/netfilter/xt_statistic.h -#usr/include/linux/netfilter/xt_string.h -#usr/include/linux/netfilter/xt_tcpmss.h -#usr/include/linux/netfilter/xt_tcpudp.h -#usr/include/linux/netfilter/xt_time.h -#usr/include/linux/netfilter/xt_u32.h #usr/include/net/netfilter #usr/include/net/netfilter/nf_conntrack_tuple.h #usr/include/net/netfilter/nf_nat.h @@ -234,6 +190,7 @@ usr/lib/libnfnetlink.so.0 usr/lib/libnfnetlink.so.0.2.0 #usr/lib/pkgconfig/libnetfilter_queue.pc #usr/lib/pkgconfig/libnfnetlink.pc +#usr/share/man/man1/iptables-xml.1 #usr/share/man/man3/ipq_create_handle.3 #usr/share/man/man3/ipq_destroy_handle.3 #usr/share/man/man3/ipq_errstr.3 @@ -250,5 +207,4 @@ usr/lib/libnfnetlink.so.0.2.0 #usr/share/man/man8/ip6tables.8 #usr/share/man/man8/iptables-restore.8 #usr/share/man/man8/iptables-save.8 -#usr/share/man/man8/iptables-xml.8 #usr/share/man/man8/iptables.8 diff --git a/lfs/iptables b/lfs/iptables index 6d36990..33a00e4 100644 --- a/lfs/iptables +++ b/lfs/iptables @@ -24,7 +24,7 @@ include Config -VER = 1.4.6 +VER = 1.4.14 THISAPP = iptables-$(VER) DL_FILE = $(THISAPP).tar.bz2 @@ -45,7 +45,7 @@ netfilter-layer7-v2.22.tar.gz = $(URL_IPFIRE)/netfilter-layer7-v2.22.tar.gz libnfnetlink-1.0.0.tar.bz2 = $(URL_IPFIRE)/libnfnetlink-1.0.0.tar.bz2 libnetfilter_queue-0.0.17.tar.bz2 = $(URL_IPFIRE)/libnetfilter_queue-0.0.17.tar.bz2 -$(DL_FILE)_MD5 = c67cf30e281a924def6426be0973df56 +$(DL_FILE)_MD5 = 5ab24ad683f76689cfe7e0c73f44855d netfilter-layer7-v2.22.tar.gz_MD5 = 98dff8a3d5a31885b73341633f69501f libnfnetlink-1.0.0.tar.bz2_MD5 = 016fdec8389242615024c529acc1adb8 libnetfilter_queue-0.0.17.tar.bz2_MD5 = 2cde35e678ead3a8f9eb896bf807a159 @@ -89,11 +89,11 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects)) ./extensions/ # ipp2p 0.8.2-pomng - cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/iptables-1.4.6-ipp2p-0.8.2-pomng.patch + cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/iptables-1.4.14-ipp2p-0.8.2-ipfire.patch # imq - cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/iptables-1.4.6-imq_test1.patch - chmod +x $(DIR_APP)/extensions/.IMQ-test* + cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/iptables-1.4.12-IMQ-test4.diff +# chmod +x $(DIR_APP)/extensions/.IMQ-test* cd $(DIR_APP) && ./configure --prefix=/usr --with-ksource=/usr/src/linux \ --libdir=/lib --includedir=/usr/include --enable-libipq \ diff --git a/lfs/miniupnpd b/lfs/miniupnpd index 470fc28..c7ba937 100644 --- a/lfs/miniupnpd +++ b/lfs/miniupnpd @@ -1,7 +1,7 @@ ############################################################################### # # # IPFire.org - A linux based firewall # -# Copyright (C) 2007 Michael Tremer & Christian Schmidt # +# Copyright (C) 2007-2012 IPFire Team <info(a)ipfire.org> # # # # This program is free software: you can redistribute it and/or modify # # it under the terms of the GNU General Public License as published by # @@ -32,7 +32,7 @@ DL_FROM = $(URL_IPFIRE) DIR_APP = $(DIR_SRC)/$(THISAPP) TARGET = $(DIR_INFO)/$(THISAPP) PROG = miniupnpd -PAK_VER = 0 +PAK_VER = 1 ############################################################################### # Top-level Rules @@ -76,6 +76,7 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects)) @$(PREBUILD) @rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar zxf $(DIR_DL)/$(DL_FILE) cd $(DIR_APP) && patch -Np0 -i $(DIR_SRC)/src/patches/miniupnpd-iptcrdr.patch + cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/miniupnpd-1.4_use_XT_ALIGN.patch cd $(DIR_APP) && make -f Makefile.linux \ CFLAGS="$(CFLAGS) -DIPTABLES_143 -I/usr/src/linux/include" diff --git a/src/patches/iptables-1.4.12-IMQ-test4.diff b/src/patches/iptables-1.4.12-IMQ-test4.diff new file mode 100644 index 0000000..5ce17e1 --- /dev/null +++ b/src/patches/iptables-1.4.12-IMQ-test4.diff @@ -0,0 +1,141 @@ +diff -Naur iptables-1.4.12.1/extensions/libxt_IMQ.c iptables-1.4.12.1-imq/extensions/libxt_IMQ.c +--- iptables-1.4.12.1/extensions/libxt_IMQ.c 1970-01-01 02:00:00.000000000 +0200 ++++ iptables-1.4.12.1-imq/extensions/libxt_IMQ.c 2011-09-30 13:53:21.000000000 +0300 +@@ -0,0 +1,105 @@ ++/* Shared library add-on to iptables to add IMQ target support. */ ++#include <stdio.h> ++#include <string.h> ++#include <stdlib.h> ++#include <getopt.h> ++ ++#include <xtables.h> ++#include <linux/netfilter/x_tables.h> ++#include <linux/netfilter/xt_IMQ.h> ++ ++/* Function which prints out usage message. */ ++static void IMQ_help(void) ++{ ++ printf( ++"IMQ target options:\n" ++" --todev <N> enqueue to imq<N>, defaults to 0\n"); ++ ++} ++ ++static struct option IMQ_opts[] = { ++ { "todev", 1, 0, '1' }, ++ { 0 } ++}; ++ ++/* Initialize the target. */ ++static void IMQ_init(struct xt_entry_target *t) ++{ ++ struct xt_imq_info *mr = (struct xt_imq_info*)t->data; ++ ++ mr->todev = 0; ++} ++ ++/* Function which parses command options; returns true if it ++ ate an option */ ++static int IMQ_parse(int c, char **argv, int invert, unsigned int *flags, ++ const void *entry, struct xt_entry_target **target) ++{ ++ struct xt_imq_info *mr = (struct xt_imq_info*)(*target)->data; ++ ++ switch(c) { ++ case '1': ++/* if (xtables_check_inverse(optarg, &invert, NULL, 0, argv)) ++ xtables_error(PARAMETER_PROBLEM, ++ "Unexpected `!' after --todev"); ++*/ ++ mr->todev=atoi(optarg); ++ break; ++ ++ default: ++ return 0; ++ } ++ return 1; ++} ++ ++/* Prints out the targinfo. */ ++static void IMQ_print(const void *ip, ++ const struct xt_entry_target *target, ++ int numeric) ++{ ++ struct xt_imq_info *mr = (struct xt_imq_info*)target->data; ++ ++ printf("IMQ: todev %u ", mr->todev); ++} ++ ++/* Saves the union ipt_targinfo in parsable form to stdout. */ ++static void IMQ_save(const void *ip, const struct xt_entry_target *target) ++{ ++ struct xt_imq_info *mr = (struct xt_imq_info*)target->data; ++ ++ printf(" --todev %u", mr->todev); ++} ++ ++static struct xtables_target imq_target = { ++ .name = "IMQ", ++ .version = XTABLES_VERSION, ++ .family = NFPROTO_IPV4, ++ .size = XT_ALIGN(sizeof(struct xt_imq_info)), ++ .userspacesize = XT_ALIGN(sizeof(struct xt_imq_info)), ++ .help = IMQ_help, ++ .init = IMQ_init, ++ .parse = IMQ_parse, ++ .print = IMQ_print, ++ .save = IMQ_save, ++ .extra_opts = IMQ_opts, ++}; ++ ++static struct xtables_target imq_target6 = { ++ .name = "IMQ", ++ .version = XTABLES_VERSION, ++ .family = NFPROTO_IPV6, ++ .size = XT_ALIGN(sizeof(struct xt_imq_info)), ++ .userspacesize = XT_ALIGN(sizeof(struct xt_imq_info)), ++ .help = IMQ_help, ++ .init = IMQ_init, ++ .parse = IMQ_parse, ++ .print = IMQ_print, ++ .save = IMQ_save, ++ .extra_opts = IMQ_opts, ++}; ++ ++// void __attribute((constructor)) nf_ext_init(void){ ++void _init(void){ ++ xtables_register_target(&imq_target); ++ xtables_register_target(&imq_target6); ++} +diff -Naur iptables-1.4.12.1/extensions/libxt_IMQ.man iptables-1.4.12.1-imq/extensions/libxt_IMQ.man +--- iptables-1.4.12.1/extensions/libxt_IMQ.man 1970-01-01 02:00:00.000000000 +0200 ++++ iptables-1.4.12.1-imq/extensions/libxt_IMQ.man 2011-09-30 13:53:21.000000000 +0300 +@@ -0,0 +1,15 @@ ++This target is used to redirect the traffic to the IMQ driver and you can apply ++QoS rules like HTB or CBQ. ++For example you can select only traffic comming from a specific interface or ++is going out on a specific interface. ++Also it permits to capture the traffic BEFORE NAT in the case of outgoing traffic ++or AFTER NAT in the case of incomming traffic. ++.TP ++\fB\-\-to\-dev\fP \fIvalue\fP ++Set the IMQ interface where to send this traffic ++.TP ++Example: ++.TP ++Redirect incomming traffic from interface eth0 to imq0 and outgoing traffic to imq1: ++iptables \-t mangle \-A FORWARD \-i eth0 \-j IMQ \-\-to\-dev 0 ++iptables \-t mangle \-A FORWARD \-o eth0 \-j IMQ \-\-to\-dev 1 +diff -Naur iptables-1.4.12.1/include/linux/netfilter/xt_IMQ.h iptables-1.4.12.1-imq/include/linux/netfilter/xt_IMQ.h +--- iptables-1.4.12.1/include/linux/netfilter/xt_IMQ.h 1970-01-01 02:00:00.000000000 +0200 ++++ iptables-1.4.12.1-imq/include/linux/netfilter/xt_IMQ.h 2011-09-30 13:53:21.000000000 +0300 +@@ -0,0 +1,9 @@ ++#ifndef _XT_IMQ_H ++#define _XT_IMQ_H ++ ++struct xt_imq_info { ++ unsigned int todev; /* target imq device */ ++}; ++ ++#endif /* _XT_IMQ_H */ ++ diff --git a/src/patches/iptables-1.4.14-ipp2p-0.8.2-ipfire.patch b/src/patches/iptables-1.4.14-ipp2p-0.8.2-ipfire.patch new file mode 100644 index 0000000..9a11eb5 --- /dev/null +++ b/src/patches/iptables-1.4.14-ipp2p-0.8.2-ipfire.patch @@ -0,0 +1,481 @@ +diff -Naur iptables-1.4.6.org/extensions/.ipp2p-test iptables-1.4.6/extensions/.ipp2p-test +--- iptables-1.4.6.org/extensions/.ipp2p-test 1970-01-01 01:00:00.000000000 +0100 ++++ iptables-1.4.6/extensions/.ipp2p-test 2010-02-13 20:02:52.000000000 +0100 +@@ -0,0 +1,2 @@ ++#! /bin/sh ++[ -f $KERNEL_DIR/include/linux/netfilter_ipv4/ipt_ipp2p.h ] && echo ipp2p +diff -Naur iptables-1.4.6.org/extensions/libipt_ipp2p.c iptables-1.4.6/extensions/libipt_ipp2p.c +--- iptables-1.4.6.org/extensions/libipt_ipp2p.c 1970-01-01 01:00:00.000000000 +0100 ++++ iptables-1.4.6/extensions/libipt_ipp2p.c 2010-02-13 20:02:52.000000000 +0100 +@@ -0,0 +1,424 @@ ++#include <stdio.h> ++#include <netdb.h> ++#include <string.h> ++#include <stdlib.h> ++#include <getopt.h> ++#include <ctype.h> ++ ++#include <iptables.h> ++ ++#include <linux/netfilter_ipv4/ipt_ipp2p.h> ++ ++#ifndef XTABLES_VERSION ++#define XTABLES_VERSION IPTABLES_VERSION ++#endif ++ ++#ifdef IPT_LIB_DIR ++#define xtables_target iptables_target ++#define xtables_register_target register_target ++#endif ++ ++static void ++help(void) ++{ ++ printf( ++ "IPP2P v%s options:\n" ++ " --ipp2p Grab all known p2p packets\n" ++ " --edk [TCP&UDP] All known eDonkey/eMule/Overnet packets\n" ++ " --dc [TCP] All known Direct Connect packets\n" ++ " --kazaa [TCP&UDP] All known KaZaA packets\n" ++ " --gnu [TCP&UDP] All known Gnutella packets\n" ++ " --bit [TCP&UDP] All known BitTorrent packets\n" ++ " --apple [TCP] All known AppleJuice packets\n" ++ " --winmx [TCP] All known WinMX\n" ++ " --soul [TCP] All known SoulSeek\n" ++ " --ares [TCP] All known Ares\n\n" ++ " EXPERIMENTAL protocols (please send feedback to: ipp2p(a)ipp2p.org) :\n" ++ " --mute [TCP] All known Mute packets\n" ++ " --waste [TCP] All known Waste packets\n" ++ " --xdcc [TCP] All known XDCC packets (only xdcc login)\n\n" ++ " DEBUG SUPPPORT, use only if you know why\n" ++ " --debug Generate kernel debug output, THIS WILL SLOW DOWN THE FILTER\n" ++ "\nNote that the follwing options will have the same meaning:\n" ++ " '--ipp2p' is equal to '--edk --dc --kazaa --gnu --bit --apple --winmx --soul --ares'\n" ++ "\nIPP2P was intended for TCP only. Due to increasing usage of UDP we needed to change this.\n" ++ "You can now use -p udp to search UDP packets only or without -p switch to search UDP and TCP packets.\n" ++ "\nSee README included with this package for more details or visit http://www.ipp2p.org\n" ++ "\nExamples:\n" ++ " iptables -A FORWARD -m ipp2p --ipp2p -j MARK --set-mark 0x01\n" ++ " iptables -A FORWARD -p udp -m ipp2p --kazaa --bit -j DROP\n" ++ " iptables -A FORWARD -p tcp -m ipp2p --edk --soul -j DROP\n\n" ++ , IPP2P_VERSION); ++} ++ ++static struct option opts[] = { ++ { "ipp2p", 0, 0, '1' }, ++ { "edk", 0, 0, '2' }, ++ { "dc", 0, 0, '7' }, ++ { "gnu", 0, 0, '9' }, ++ { "kazaa", 0, 0, 'a' }, ++ { "bit", 0, 0, 'b' }, ++ { "apple", 0, 0, 'c' }, ++ { "soul", 0, 0, 'd' }, ++ { "winmx", 0, 0, 'e' }, ++ { "ares", 0, 0, 'f' }, ++ { "mute", 0, 0, 'g' }, ++ { "waste", 0, 0, 'h' }, ++ { "xdcc", 0, 0, 'i' }, ++ { "debug", 0, 0, 'j' }, ++ {0} ++}; ++ ++ ++static void ++#ifdef _XTABLES_H ++init(struct xt_entry_match *m) ++#else ++init(struct ipt_entry_match *t, unsigned int *nfcache) ++#endif ++{ ++ struct ipt_p2p_info *info = (struct ipt_p2p_info *)m->data; ++ ++#ifndef _XTABLES_H ++ *nfcache |= NFC_UNKNOWN; ++#endif ++ ++ /*init the module with default values*/ ++ info->cmd = 0; ++ info->debug = 0; ++ ++} ++ ++ ++static int ++parse(int c, char **argv, int invert, unsigned int *flags, ++#ifdef _XTABLES_H ++ const void *entry, struct xt_entry_match **match) ++#else ++ const struct ipt_entry *entry, unsigned int *nfcache, struct ipt_entry_match **match) ++#endif ++{ ++ struct ipt_p2p_info *info = (struct ipt_p2p_info *)(*match)->data; ++ ++ switch (c) { ++ case '1': /*cmd: ipp2p*/ ++ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--ipp2p' may only be " ++ "specified once!"); ++ ++/* if ((*flags & SHORT_HAND_DATA) == SHORT_HAND_DATA) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--ipp2p-data' may only be " ++ "specified alone!"); ++*/ ++ ++ if ((*flags) != 0) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--ipp2p' may only be " ++ "specified alone!"); ++ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); ++ *flags += SHORT_HAND_IPP2P; ++ info->cmd = *flags; ++ break; ++ ++ case '2': /*cmd: edk*/ ++ if ((*flags & IPP2P_EDK) == IPP2P_EDK) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--edk' may only be " ++ "specified once"); ++ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--ipp2p' may only be " ++ "specified alone!"); ++/* if ((*flags & SHORT_HAND_DATA) == SHORT_HAND_DATA) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--ipp2p-data' may only be " ++ "specified alone!");*/ ++ if ((*flags & IPP2P_DATA_EDK) == IPP2P_DATA_EDK) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: use `--edk' OR `--edk-data' but not both of them!"); ++ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); ++ *flags += IPP2P_EDK; ++ info->cmd = *flags; ++ break; ++ ++ ++ case '7': /*cmd: dc*/ ++ if ((*flags & IPP2P_DC) == IPP2P_DC) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--dc' may only be " ++ "specified once!"); ++ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--ipp2p' may only be " ++ "specified alone!"); ++/* if ((*flags & SHORT_HAND_DATA) == SHORT_HAND_DATA) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--ipp2p-data' may only be " ++ "specified alone!");*/ ++ if ((*flags & IPP2P_DATA_DC) == IPP2P_DATA_DC) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: use `--dc' OR `--dc-data' but not both of them!"); ++ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); ++ *flags += IPP2P_DC; ++ info->cmd = *flags; ++ break; ++ ++ ++ case '9': /*cmd: gnu*/ ++ if ((*flags & IPP2P_GNU) == IPP2P_GNU) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--gnu' may only be " ++ "specified once!"); ++/* if ((*flags & SHORT_HAND_DATA) == SHORT_HAND_DATA) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--ipp2p-data' may only be " ++ "specified alone!");*/ ++ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--ipp2p' may only be " ++ "specified alone!"); ++ if ((*flags & IPP2P_DATA_GNU) == IPP2P_DATA_GNU) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: use `--gnu' OR `--gnu-data' but not both of them!"); ++ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); ++ *flags += IPP2P_GNU; ++ info->cmd = *flags; ++ break; ++ ++ case 'a': /*cmd: kazaa*/ ++ if ((*flags & IPP2P_KAZAA) == IPP2P_KAZAA) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--kazaa' may only be " ++ "specified once!"); ++/* if ((*flags & SHORT_HAND_DATA) == SHORT_HAND_DATA) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--ipp2p-data' may only be " ++ "specified alone!");*/ ++ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--ipp2p' may only be " ++ "specified alone!"); ++ if ((*flags & IPP2P_DATA_KAZAA) == IPP2P_DATA_KAZAA) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: use `--kazaa' OR `--kazaa-data' but not both of them!"); ++ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); ++ *flags += IPP2P_KAZAA; ++ info->cmd = *flags; ++ break; ++ ++ case 'b': /*cmd: bit*/ ++ if ((*flags & IPP2P_BIT) == IPP2P_BIT) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--bit' may only be " ++ "specified once!"); ++ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--ipp2p' may only be " ++ "specified alone!"); ++ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); ++ *flags += IPP2P_BIT; ++ info->cmd = *flags; ++ break; ++ ++ case 'c': /*cmd: apple*/ ++ if ((*flags & IPP2P_APPLE) == IPP2P_APPLE) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--apple' may only be " ++ "specified once!"); ++ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--ipp2p' may only be " ++ "specified alone!"); ++ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); ++ *flags += IPP2P_APPLE; ++ info->cmd = *flags; ++ break; ++ ++ ++ case 'd': /*cmd: soul*/ ++ if ((*flags & IPP2P_SOUL) == IPP2P_SOUL) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--soul' may only be " ++ "specified once!"); ++ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--ipp2p' may only be " ++ "specified alone!"); ++ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); ++ *flags += IPP2P_SOUL; ++ info->cmd = *flags; ++ break; ++ ++ ++ case 'e': /*cmd: winmx*/ ++ if ((*flags & IPP2P_WINMX) == IPP2P_WINMX) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--winmx' may only be " ++ "specified once!"); ++ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--ipp2p' may only be " ++ "specified alone!"); ++ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); ++ *flags += IPP2P_WINMX; ++ info->cmd = *flags; ++ break; ++ ++ case 'f': /*cmd: ares*/ ++ if ((*flags & IPP2P_ARES) == IPP2P_ARES) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--ares' may only be " ++ "specified once!"); ++ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--ipp2p' may only be " ++ "specified alone!"); ++ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); ++ *flags += IPP2P_ARES; ++ info->cmd = *flags; ++ break; ++ ++ case 'g': /*cmd: mute*/ ++ if ((*flags & IPP2P_MUTE) == IPP2P_MUTE) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--mute' may only be " ++ "specified once!"); ++ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); ++ *flags += IPP2P_MUTE; ++ info->cmd = *flags; ++ break; ++ case 'h': /*cmd: waste*/ ++ if ((*flags & IPP2P_WASTE) == IPP2P_WASTE) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--waste' may only be " ++ "specified once!"); ++ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); ++ *flags += IPP2P_WASTE; ++ info->cmd = *flags; ++ break; ++ case 'i': /*cmd: xdcc*/ ++ if ((*flags & IPP2P_XDCC) == IPP2P_XDCC) ++ xtables_error(PARAMETER_PROBLEM, ++ "ipp2p: `--ares' may only be " ++ "specified once!"); ++ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); ++ *flags += IPP2P_XDCC; ++ info->cmd = *flags; ++ break; ++ ++ case 'j': /*cmd: debug*/ ++ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); ++ info->debug = 1; ++ break; ++ ++ default: ++// xtables_error(PARAMETER_PROBLEM, ++// "\nipp2p-parameter problem: for ipp2p usage type: iptables -m ipp2p --help\n"); ++ return 0; ++ } ++ return 1; ++} ++ ++ ++static void ++final_check(unsigned int flags) ++{ ++ if (!flags) ++ xtables_error(PARAMETER_PROBLEM, ++ "\nipp2p-parameter problem: for ipp2p usage type: iptables -m ipp2p --help\n"); ++} ++ ++static void ++#ifdef _XTABLES_H ++print(const void *ip, ++ const struct xt_entry_match *match, ++#else ++print(const struct ipt_ip *ip, ++ const struct ipt_entry_match *match, ++#endif ++ int numeric) ++{ ++ struct ipt_p2p_info *info = (struct ipt_p2p_info *)match->data; ++ ++ printf("ipp2p v%s", IPP2P_VERSION); ++ if ((info->cmd & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) printf(" --ipp2p"); ++// if ((info->cmd & SHORT_HAND_DATA) == SHORT_HAND_DATA) printf(" --ipp2p-data"); ++ if ((info->cmd & IPP2P_KAZAA) == IPP2P_KAZAA) printf(" --kazaa"); ++// if ((info->cmd & IPP2P_DATA_KAZAA) == IPP2P_DATA_KAZAA) printf(" --kazaa-data"); ++// if ((info->cmd & IPP2P_DATA_GNU) == IPP2P_DATA_GNU) printf(" --gnu-data"); ++ if ((info->cmd & IPP2P_GNU) == IPP2P_GNU) printf(" --gnu"); ++ if ((info->cmd & IPP2P_EDK) == IPP2P_EDK) printf(" --edk"); ++// if ((info->cmd & IPP2P_DATA_EDK) == IPP2P_DATA_EDK) printf(" --edk-data"); ++// if ((info->cmd & IPP2P_DATA_DC) == IPP2P_DATA_DC) printf(" --dc-data"); ++ if ((info->cmd & IPP2P_DC) == IPP2P_DC) printf(" --dc"); ++ if ((info->cmd & IPP2P_BIT) == IPP2P_BIT) printf(" --bit"); ++ if ((info->cmd & IPP2P_APPLE) == IPP2P_APPLE) printf(" --apple"); ++ if ((info->cmd & IPP2P_SOUL) == IPP2P_SOUL) printf(" --soul"); ++ if ((info->cmd & IPP2P_WINMX) == IPP2P_WINMX) printf(" --winmx"); ++ if ((info->cmd & IPP2P_ARES) == IPP2P_ARES) printf(" --ares"); ++ if ((info->cmd & IPP2P_MUTE) == IPP2P_MUTE) printf(" --mute"); ++ if ((info->cmd & IPP2P_WASTE) == IPP2P_WASTE) printf(" --waste"); ++ if ((info->cmd & IPP2P_XDCC) == IPP2P_XDCC) printf(" --xdcc"); ++ if (info->debug != 0) printf(" --debug"); ++ printf(" "); ++} ++ ++static void ++#ifdef _XTABLES_H ++save(const void *ip, ++ const struct xt_entry_match *match) ++#else ++save(const struct ipt_ip *ip, ++ const struct ipt_entry_match *match) ++#endif ++{ ++ struct ipt_p2p_info *info = (struct ipt_p2p_info *)match->data; ++ ++ if ((info->cmd & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) printf("--ipp2p "); ++// if ((info->cmd & SHORT_HAND_DATA) == SHORT_HAND_DATA) printf("--ipp2p-data "); ++ if ((info->cmd & IPP2P_KAZAA) == IPP2P_KAZAA) printf("--kazaa "); ++// if ((info->cmd & IPP2P_DATA_KAZAA) == IPP2P_DATA_KAZAA) printf("--kazaa-data "); ++// if ((info->cmd & IPP2P_DATA_GNU) == IPP2P_DATA_GNU) printf("--gnu-data "); ++ if ((info->cmd & IPP2P_GNU) == IPP2P_GNU) printf("--gnu "); ++ if ((info->cmd & IPP2P_EDK) == IPP2P_EDK) printf("--edk "); ++// if ((info->cmd & IPP2P_DATA_EDK) == IPP2P_DATA_EDK) printf("--edk-data "); ++// if ((info->cmd & IPP2P_DATA_DC) == IPP2P_DATA_DC) printf("--dc-data "); ++ if ((info->cmd & IPP2P_DC) == IPP2P_DC) printf("--dc "); ++ if ((info->cmd & IPP2P_BIT) == IPP2P_BIT) printf("--bit "); ++ if ((info->cmd & IPP2P_APPLE) == IPP2P_APPLE) printf("--apple "); ++ if ((info->cmd & IPP2P_SOUL) == IPP2P_SOUL) printf("--soul "); ++ if ((info->cmd & IPP2P_WINMX) == IPP2P_WINMX) printf("--winmx "); ++ if ((info->cmd & IPP2P_ARES) == IPP2P_ARES) printf("--ares "); ++ if ((info->cmd & IPP2P_MUTE) == IPP2P_MUTE) printf(" --mute"); ++ if ((info->cmd & IPP2P_WASTE) == IPP2P_WASTE) printf(" --waste"); ++ if ((info->cmd & IPP2P_XDCC) == IPP2P_XDCC) printf(" --xdcc"); ++ if (info->debug != 0) printf("--debug "); ++} ++ ++ ++static ++struct xtables_match ipp2p= ++{ ++ .next = NULL, ++ .name = "ipp2p", ++ .version = XTABLES_VERSION, ++ .size = XT_ALIGN(sizeof(struct ipt_p2p_info)), ++ .userspacesize = XT_ALIGN(sizeof(struct ipt_p2p_info)), ++ .help = &help, ++ .init = &init, ++ .parse = &parse, ++ .final_check = &final_check, ++ .print = &print, ++ .save = &save, ++ .extra_opts = opts ++}; ++ ++ ++ ++void _init(void) ++{ ++ xtables_register_match(&ipp2p); ++} ++ +diff -Naur iptables-1.4.6.org/extensions/libipt_ipp2p.man iptables-1.4.6/extensions/libipt_ipp2p.man +--- iptables-1.4.6.org/extensions/libipt_ipp2p.man 1970-01-01 01:00:00.000000000 +0100 ++++ iptables-1.4.6/extensions/libipt_ipp2p.man 2010-02-13 20:02:52.000000000 +0100 +@@ -0,0 +1,43 @@ ++This module matches certain packets in P2P flows. It is not ++designed to match all packets belonging to a P2P connection - ++use IPP2P together with CONNMARK for this purpose. Also visit ++http://www.ipp2p.org for detailed information. ++ ++Use it together with -p tcp or -p udp to search these protocols ++only or without -p switch to search packets of both protocols. ++ ++IPP2P provides the following options: ++.TP ++.B "--edk " ++Matches as many eDonkey/eMule packets as possible. ++.TP ++.B "--kazaa " ++Matches as many KaZaA packets as possible. ++.TP ++.B "--gnu " ++Matches as many Gnutella packets as possible. ++.TP ++.B "--dc " ++Matches as many Direct Connect packets as possible. ++.TP ++.B "--bit " ++Matches BitTorrent packets. ++.TP ++.B "--apple " ++Matches AppleJuice packets. ++.TP ++.B "--soul " ++Matches some SoulSeek packets. Considered as beta, use careful! ++.TP ++.B "--winmx " ++Matches some WinMX packets. Considered as beta, use careful! ++.TP ++.B "--ares " ++Matches Ares and AresLite packets. Use together with -j DROP only. ++.TP ++.B "--ipp2p " ++Short hand for: --edk --kazaa --gnu --dc ++.TP ++.B "--debug " ++Prints some information about each hit into kernel logfile. May ++produce huge logfiles so beware! diff --git a/src/patches/iptables-1.4.6-errorno_includes.patch b/src/patches/iptables-1.4.6-errorno_includes.patch deleted file mode 100644 index a25c5a3..0000000 --- a/src/patches/iptables-1.4.6-errorno_includes.patch +++ /dev/null @@ -1,170 +0,0 @@ -diff -Naur include.org/asm/errno.h include/asm/errno.h ---- include.org/asm/errno.h 2010-02-12 18:21:40.000000000 +0100 -+++ include/asm/errno.h 2010-02-12 18:19:41.000000000 +0100 -@@ -5,4 +5,8 @@ - #include <linux/errno.h> - #endif - -+#ifndef _ASM_GENERIC_ERRNO_H -+ #include <asm-generic/errno.h> -+#endif -+ - #endif -diff -Naur include.org/asm-generic/errno-base.h include/asm-generic/errno-base.h ---- include.org/asm-generic/errno-base.h 1970-01-01 01:00:00.000000000 +0100 -+++ include/asm-generic/errno-base.h 2010-02-09 13:57:19.000000000 +0100 -@@ -0,0 +1,39 @@ -+#ifndef _ASM_GENERIC_ERRNO_BASE_H -+#define _ASM_GENERIC_ERRNO_BASE_H -+ -+#define EPERM 1 /* Operation not permitted */ -+#define ENOENT 2 /* No such file or directory */ -+#define ESRCH 3 /* No such process */ -+#define EINTR 4 /* Interrupted system call */ -+#define EIO 5 /* I/O error */ -+#define ENXIO 6 /* No such device or address */ -+#define E2BIG 7 /* Argument list too long */ -+#define ENOEXEC 8 /* Exec format error */ -+#define EBADF 9 /* Bad file number */ -+#define ECHILD 10 /* No child processes */ -+#define EAGAIN 11 /* Try again */ -+#define ENOMEM 12 /* Out of memory */ -+#define EACCES 13 /* Permission denied */ -+#define EFAULT 14 /* Bad address */ -+#define ENOTBLK 15 /* Block device required */ -+#define EBUSY 16 /* Device or resource busy */ -+#define EEXIST 17 /* File exists */ -+#define EXDEV 18 /* Cross-device link */ -+#define ENODEV 19 /* No such device */ -+#define ENOTDIR 20 /* Not a directory */ -+#define EISDIR 21 /* Is a directory */ -+#define EINVAL 22 /* Invalid argument */ -+#define ENFILE 23 /* File table overflow */ -+#define EMFILE 24 /* Too many open files */ -+#define ENOTTY 25 /* Not a typewriter */ -+#define ETXTBSY 26 /* Text file busy */ -+#define EFBIG 27 /* File too large */ -+#define ENOSPC 28 /* No space left on device */ -+#define ESPIPE 29 /* Illegal seek */ -+#define EROFS 30 /* Read-only file system */ -+#define EMLINK 31 /* Too many links */ -+#define EPIPE 32 /* Broken pipe */ -+#define EDOM 33 /* Math argument out of domain of func */ -+#define ERANGE 34 /* Math result not representable */ -+ -+#endif -diff -Naur include.org/asm-generic/errno.h include/asm-generic/errno.h ---- include.org/asm-generic/errno.h 1970-01-01 01:00:00.000000000 +0100 -+++ include/asm-generic/errno.h 2010-02-09 13:57:19.000000000 +0100 -@@ -0,0 +1,111 @@ -+#ifndef _ASM_GENERIC_ERRNO_H -+#define _ASM_GENERIC_ERRNO_H -+ -+#include <asm-generic/errno-base.h> -+ -+#define EDEADLK 35 /* Resource deadlock would occur */ -+#define ENAMETOOLONG 36 /* File name too long */ -+#define ENOLCK 37 /* No record locks available */ -+#define ENOSYS 38 /* Function not implemented */ -+#define ENOTEMPTY 39 /* Directory not empty */ -+#define ELOOP 40 /* Too many symbolic links encountered */ -+#define EWOULDBLOCK EAGAIN /* Operation would block */ -+#define ENOMSG 42 /* No message of desired type */ -+#define EIDRM 43 /* Identifier removed */ -+#define ECHRNG 44 /* Channel number out of range */ -+#define EL2NSYNC 45 /* Level 2 not synchronized */ -+#define EL3HLT 46 /* Level 3 halted */ -+#define EL3RST 47 /* Level 3 reset */ -+#define ELNRNG 48 /* Link number out of range */ -+#define EUNATCH 49 /* Protocol driver not attached */ -+#define ENOCSI 50 /* No CSI structure available */ -+#define EL2HLT 51 /* Level 2 halted */ -+#define EBADE 52 /* Invalid exchange */ -+#define EBADR 53 /* Invalid request descriptor */ -+#define EXFULL 54 /* Exchange full */ -+#define ENOANO 55 /* No anode */ -+#define EBADRQC 56 /* Invalid request code */ -+#define EBADSLT 57 /* Invalid slot */ -+ -+#define EDEADLOCK EDEADLK -+ -+#define EBFONT 59 /* Bad font file format */ -+#define ENOSTR 60 /* Device not a stream */ -+#define ENODATA 61 /* No data available */ -+#define ETIME 62 /* Timer expired */ -+#define ENOSR 63 /* Out of streams resources */ -+#define ENONET 64 /* Machine is not on the network */ -+#define ENOPKG 65 /* Package not installed */ -+#define EREMOTE 66 /* Object is remote */ -+#define ENOLINK 67 /* Link has been severed */ -+#define EADV 68 /* Advertise error */ -+#define ESRMNT 69 /* Srmount error */ -+#define ECOMM 70 /* Communication error on send */ -+#define EPROTO 71 /* Protocol error */ -+#define EMULTIHOP 72 /* Multihop attempted */ -+#define EDOTDOT 73 /* RFS specific error */ -+#define EBADMSG 74 /* Not a data message */ -+#define EOVERFLOW 75 /* Value too large for defined data type */ -+#define ENOTUNIQ 76 /* Name not unique on network */ -+#define EBADFD 77 /* File descriptor in bad state */ -+#define EREMCHG 78 /* Remote address changed */ -+#define ELIBACC 79 /* Can not access a needed shared library */ -+#define ELIBBAD 80 /* Accessing a corrupted shared library */ -+#define ELIBSCN 81 /* .lib section in a.out corrupted */ -+#define ELIBMAX 82 /* Attempting to link in too many shared libraries */ -+#define ELIBEXEC 83 /* Cannot exec a shared library directly */ -+#define EILSEQ 84 /* Illegal byte sequence */ -+#define ERESTART 85 /* Interrupted system call should be restarted */ -+#define ESTRPIPE 86 /* Streams pipe error */ -+#define EUSERS 87 /* Too many users */ -+#define ENOTSOCK 88 /* Socket operation on non-socket */ -+#define EDESTADDRREQ 89 /* Destination address required */ -+#define EMSGSIZE 90 /* Message too long */ -+#define EPROTOTYPE 91 /* Protocol wrong type for socket */ -+#define ENOPROTOOPT 92 /* Protocol not available */ -+#define EPROTONOSUPPORT 93 /* Protocol not supported */ -+#define ESOCKTNOSUPPORT 94 /* Socket type not supported */ -+#define EOPNOTSUPP 95 /* Operation not supported on transport endpoint */ -+#define EPFNOSUPPORT 96 /* Protocol family not supported */ -+#define EAFNOSUPPORT 97 /* Address family not supported by protocol */ -+#define EADDRINUSE 98 /* Address already in use */ -+#define EADDRNOTAVAIL 99 /* Cannot assign requested address */ -+#define ENETDOWN 100 /* Network is down */ -+#define ENETUNREACH 101 /* Network is unreachable */ -+#define ENETRESET 102 /* Network dropped connection because of reset */ -+#define ECONNABORTED 103 /* Software caused connection abort */ -+#define ECONNRESET 104 /* Connection reset by peer */ -+#define ENOBUFS 105 /* No buffer space available */ -+#define EISCONN 106 /* Transport endpoint is already connected */ -+#define ENOTCONN 107 /* Transport endpoint is not connected */ -+#define ESHUTDOWN 108 /* Cannot send after transport endpoint shutdown */ -+#define ETOOMANYREFS 109 /* Too many references: cannot splice */ -+#define ETIMEDOUT 110 /* Connection timed out */ -+#define ECONNREFUSED 111 /* Connection refused */ -+#define EHOSTDOWN 112 /* Host is down */ -+#define EHOSTUNREACH 113 /* No route to host */ -+#define EALREADY 114 /* Operation already in progress */ -+#define EINPROGRESS 115 /* Operation now in progress */ -+#define ESTALE 116 /* Stale NFS file handle */ -+#define EUCLEAN 117 /* Structure needs cleaning */ -+#define ENOTNAM 118 /* Not a XENIX named type file */ -+#define ENAVAIL 119 /* No XENIX semaphores available */ -+#define EISNAM 120 /* Is a named type file */ -+#define EREMOTEIO 121 /* Remote I/O error */ -+#define EDQUOT 122 /* Quota exceeded */ -+ -+#define ENOMEDIUM 123 /* No medium found */ -+#define EMEDIUMTYPE 124 /* Wrong medium type */ -+#define ECANCELED 125 /* Operation Canceled */ -+#define ENOKEY 126 /* Required key not available */ -+#define EKEYEXPIRED 127 /* Key has expired */ -+#define EKEYREVOKED 128 /* Key has been revoked */ -+#define EKEYREJECTED 129 /* Key was rejected by service */ -+ -+/* for robust mutexes */ -+#define EOWNERDEAD 130 /* Owner died */ -+#define ENOTRECOVERABLE 131 /* State not recoverable */ -+ -+#define ERFKILL 132 /* Operation not possible due to RF-kill */ -+ -+#endif diff --git a/src/patches/iptables-1.4.6-imq_test1.patch b/src/patches/iptables-1.4.6-imq_test1.patch deleted file mode 100644 index 2b4fb79..0000000 --- a/src/patches/iptables-1.4.6-imq_test1.patch +++ /dev/null @@ -1,126 +0,0 @@ -diff -Naurw iptables-1.4.1/extensions/.IMQ-testx iptables-1.4.1.imq/extensions/.IMQ-testx ---- iptables-1.4.1/extensions/.IMQ-testx 1969-12-31 21:00:00.000000000 -0300 -+++ iptables-1.4.1.imq/extensions/.IMQ-testx 2008-06-24 22:20:06.000000000 -0300 -@@ -0,0 +1,3 @@ -+#!/bin/sh -+# True if IMQ target patch is applied. -+[ -f $KERNEL_DIR/include/linux/netfilter/xt_IMQ.h ] && echo IMQ -diff -Naurw iptables-1.4.1/extensions/libxt_IMQ.c iptables-1.4.1.imq/extensions/libxt_IMQ.c ---- iptables-1.4.1/extensions/libxt_IMQ.c 1969-12-31 21:00:00.000000000 -0300 -+++ iptables-1.4.1.imq/extensions/libxt_IMQ.c 2008-06-24 22:31:02.000000000 -0300 -@@ -0,0 +1,103 @@ -+/* Shared library add-on to iptables to add IMQ target support. */ -+#include <stdio.h> -+#include <string.h> -+#include <stdlib.h> -+#include <getopt.h> -+ -+#include <xtables.h> -+#include <linux/netfilter/x_tables.h> -+#include <linux/netfilter/xt_IMQ.h> -+ -+/* Function which prints out usage message. */ -+static void IMQ_help(void) -+{ -+ printf( -+"IMQ target options:\n" -+" --todev <N> enqueue to imq<N>, defaults to 0\n"); -+ -+} -+ -+static struct option IMQ_opts[] = { -+ { "todev", 1, 0, '1' }, -+ { 0 } -+}; -+ -+/* Initialize the target. */ -+static void IMQ_init(struct xt_entry_target *t) -+{ -+ struct xt_imq_info *mr = (struct xt_imq_info*)t->data; -+ -+ mr->todev = 0; -+} -+ -+/* Function which parses command options; returns true if it -+ ate an option */ -+static int IMQ_parse(int c, char **argv, int invert, unsigned int *flags, -+ const void *entry, struct xt_entry_target **target) -+{ -+ struct xt_imq_info *mr = (struct xt_imq_info*)(*target)->data; -+ -+ switch(c) { -+ case '1': -+ if (xtables_check_inverse(optarg, &invert, NULL, 0, argv)) -+ xtables_error(PARAMETER_PROBLEM, -+ "Unexpected `!' for --todev"); -+ mr->todev=atoi(optarg); -+ break; -+ default: -+ return 0; -+ } -+ return 1; -+} -+ -+/* Prints out the targinfo. */ -+static void IMQ_print(const void *ip, -+ const struct xt_entry_target *target, -+ int numeric) -+{ -+ struct xt_imq_info *mr = (struct xt_imq_info*)target->data; -+ -+ printf("IMQ: todev %u ", mr->todev); -+} -+ -+/* Saves the union ipt_targinfo in parsable form to stdout. */ -+static void IMQ_save(const void *ip, const struct xt_entry_target *target) -+{ -+ struct xt_imq_info *mr = (struct xt_imq_info*)target->data; -+ -+ printf("--todev %u", mr->todev); -+} -+ -+static struct xtables_target imq_target = { -+ .name = "IMQ", -+ .version = XTABLES_VERSION, -+ .family = NFPROTO_IPV4, -+ .size = XT_ALIGN(sizeof(struct xt_imq_info)), -+ .userspacesize = XT_ALIGN(sizeof(struct xt_imq_info)), -+ .help = IMQ_help, -+ .init = IMQ_init, -+ .parse = IMQ_parse, -+ .print = IMQ_print, -+ .save = IMQ_save, -+ .extra_opts = IMQ_opts, -+}; -+ -+static struct xtables_target imq_target6 = { -+ .name = "IMQ", -+ .version = XTABLES_VERSION, -+ .family = NFPROTO_IPV6, -+ .size = XT_ALIGN(sizeof(struct xt_imq_info)), -+ .userspacesize = XT_ALIGN(sizeof(struct xt_imq_info)), -+ .help = IMQ_help, -+ .init = IMQ_init, -+ .parse = IMQ_parse, -+ .print = IMQ_print, -+ .save = IMQ_save, -+ .extra_opts = IMQ_opts, -+}; -+ -+// void __attribute((constructor)) nf_ext_init(void){ -+void _init(void){ -+ xtables_register_target(&imq_target); -+ xtables_register_target(&imq_target6); -+} ---- iptables-1.4.1.1/include/linux/netfilter/xt_IMQ.h 1970-01-01 02:00:00.000000000 +0200 -+++ iptables-1.4.1.1.new/include/linux/netfilter/xt_IMQ.h 2008-08-05 00:41:28.000000000 +0300 -@@ -0,0 +1,9 @@ -+#ifndef _XT_IMQ_H -+#define _XT_IMQ_H -+ -+struct xt_imq_info { -+ unsigned int todev; /* target imq device */ -+}; -+ -+#endif /* _XT_IMQ_H */ -+ diff --git a/src/patches/iptables-1.4.6-ipp2p-0.8.2-pomng.patch b/src/patches/iptables-1.4.6-ipp2p-0.8.2-pomng.patch deleted file mode 100644 index 68e44b1..0000000 --- a/src/patches/iptables-1.4.6-ipp2p-0.8.2-pomng.patch +++ /dev/null @@ -1,481 +0,0 @@ -diff -Naur iptables-1.4.6.org/extensions/.ipp2p-test iptables-1.4.6/extensions/.ipp2p-test ---- iptables-1.4.6.org/extensions/.ipp2p-test 1970-01-01 01:00:00.000000000 +0100 -+++ iptables-1.4.6/extensions/.ipp2p-test 2010-02-13 20:02:52.000000000 +0100 -@@ -0,0 +1,2 @@ -+#! /bin/sh -+[ -f $KERNEL_DIR/include/linux/netfilter_ipv4/ipt_ipp2p.h ] && echo ipp2p -diff -Naur iptables-1.4.6.org/extensions/libipt_ipp2p.c iptables-1.4.6/extensions/libipt_ipp2p.c ---- iptables-1.4.6.org/extensions/libipt_ipp2p.c 1970-01-01 01:00:00.000000000 +0100 -+++ iptables-1.4.6/extensions/libipt_ipp2p.c 2010-02-13 20:02:52.000000000 +0100 -@@ -0,0 +1,424 @@ -+#include <stdio.h> -+#include <netdb.h> -+#include <string.h> -+#include <stdlib.h> -+#include <getopt.h> -+#include <ctype.h> -+ -+#include <iptables.h> -+ -+#include <linux/netfilter_ipv4/ipt_ipp2p.h> -+ -+#ifndef XTABLES_VERSION -+#define XTABLES_VERSION IPTABLES_VERSION -+#endif -+ -+#ifdef IPT_LIB_DIR -+#define xtables_target iptables_target -+#define xtables_register_target register_target -+#endif -+ -+static void -+help(void) -+{ -+ printf( -+ "IPP2P v%s options:\n" -+ " --ipp2p Grab all known p2p packets\n" -+ " --edk [TCP&UDP] All known eDonkey/eMule/Overnet packets\n" -+ " --dc [TCP] All known Direct Connect packets\n" -+ " --kazaa [TCP&UDP] All known KaZaA packets\n" -+ " --gnu [TCP&UDP] All known Gnutella packets\n" -+ " --bit [TCP&UDP] All known BitTorrent packets\n" -+ " --apple [TCP] All known AppleJuice packets\n" -+ " --winmx [TCP] All known WinMX\n" -+ " --soul [TCP] All known SoulSeek\n" -+ " --ares [TCP] All known Ares\n\n" -+ " EXPERIMENTAL protocols (please send feedback to: ipp2p(a)ipp2p.org) :\n" -+ " --mute [TCP] All known Mute packets\n" -+ " --waste [TCP] All known Waste packets\n" -+ " --xdcc [TCP] All known XDCC packets (only xdcc login)\n\n" -+ " DEBUG SUPPPORT, use only if you know why\n" -+ " --debug Generate kernel debug output, THIS WILL SLOW DOWN THE FILTER\n" -+ "\nNote that the follwing options will have the same meaning:\n" -+ " '--ipp2p' is equal to '--edk --dc --kazaa --gnu --bit --apple --winmx --soul --ares'\n" -+ "\nIPP2P was intended for TCP only. Due to increasing usage of UDP we needed to change this.\n" -+ "You can now use -p udp to search UDP packets only or without -p switch to search UDP and TCP packets.\n" -+ "\nSee README included with this package for more details or visit http://www.ipp2p.org\n" -+ "\nExamples:\n" -+ " iptables -A FORWARD -m ipp2p --ipp2p -j MARK --set-mark 0x01\n" -+ " iptables -A FORWARD -p udp -m ipp2p --kazaa --bit -j DROP\n" -+ " iptables -A FORWARD -p tcp -m ipp2p --edk --soul -j DROP\n\n" -+ , IPP2P_VERSION); -+} -+ -+static struct option opts[] = { -+ { "ipp2p", 0, 0, '1' }, -+ { "edk", 0, 0, '2' }, -+ { "dc", 0, 0, '7' }, -+ { "gnu", 0, 0, '9' }, -+ { "kazaa", 0, 0, 'a' }, -+ { "bit", 0, 0, 'b' }, -+ { "apple", 0, 0, 'c' }, -+ { "soul", 0, 0, 'd' }, -+ { "winmx", 0, 0, 'e' }, -+ { "ares", 0, 0, 'f' }, -+ { "mute", 0, 0, 'g' }, -+ { "waste", 0, 0, 'h' }, -+ { "xdcc", 0, 0, 'i' }, -+ { "debug", 0, 0, 'j' }, -+ {0} -+}; -+ -+ -+static void -+#ifdef _XTABLES_H -+init(struct xt_entry_match *m) -+#else -+init(struct ipt_entry_match *t, unsigned int *nfcache) -+#endif -+{ -+ struct ipt_p2p_info *info = (struct ipt_p2p_info *)m->data; -+ -+#ifndef _XTABLES_H -+ *nfcache |= NFC_UNKNOWN; -+#endif -+ -+ /*init the module with default values*/ -+ info->cmd = 0; -+ info->debug = 0; -+ -+} -+ -+ -+static int -+parse(int c, char **argv, int invert, unsigned int *flags, -+#ifdef _XTABLES_H -+ const void *entry, struct xt_entry_match **match) -+#else -+ const struct ipt_entry *entry, unsigned int *nfcache, struct ipt_entry_match **match) -+#endif -+{ -+ struct ipt_p2p_info *info = (struct ipt_p2p_info *)(*match)->data; -+ -+ switch (c) { -+ case '1': /*cmd: ipp2p*/ -+ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--ipp2p' may only be " -+ "specified once!"); -+ -+/* if ((*flags & SHORT_HAND_DATA) == SHORT_HAND_DATA) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--ipp2p-data' may only be " -+ "specified alone!"); -+*/ -+ -+ if ((*flags) != 0) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--ipp2p' may only be " -+ "specified alone!"); -+ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); -+ *flags += SHORT_HAND_IPP2P; -+ info->cmd = *flags; -+ break; -+ -+ case '2': /*cmd: edk*/ -+ if ((*flags & IPP2P_EDK) == IPP2P_EDK) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--edk' may only be " -+ "specified once"); -+ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--ipp2p' may only be " -+ "specified alone!"); -+/* if ((*flags & SHORT_HAND_DATA) == SHORT_HAND_DATA) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--ipp2p-data' may only be " -+ "specified alone!");*/ -+ if ((*flags & IPP2P_DATA_EDK) == IPP2P_DATA_EDK) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: use `--edk' OR `--edk-data' but not both of them!"); -+ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); -+ *flags += IPP2P_EDK; -+ info->cmd = *flags; -+ break; -+ -+ -+ case '7': /*cmd: dc*/ -+ if ((*flags & IPP2P_DC) == IPP2P_DC) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--dc' may only be " -+ "specified once!"); -+ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--ipp2p' may only be " -+ "specified alone!"); -+/* if ((*flags & SHORT_HAND_DATA) == SHORT_HAND_DATA) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--ipp2p-data' may only be " -+ "specified alone!");*/ -+ if ((*flags & IPP2P_DATA_DC) == IPP2P_DATA_DC) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: use `--dc' OR `--dc-data' but not both of them!"); -+ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); -+ *flags += IPP2P_DC; -+ info->cmd = *flags; -+ break; -+ -+ -+ case '9': /*cmd: gnu*/ -+ if ((*flags & IPP2P_GNU) == IPP2P_GNU) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--gnu' may only be " -+ "specified once!"); -+/* if ((*flags & SHORT_HAND_DATA) == SHORT_HAND_DATA) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--ipp2p-data' may only be " -+ "specified alone!");*/ -+ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--ipp2p' may only be " -+ "specified alone!"); -+ if ((*flags & IPP2P_DATA_GNU) == IPP2P_DATA_GNU) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: use `--gnu' OR `--gnu-data' but not both of them!"); -+ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); -+ *flags += IPP2P_GNU; -+ info->cmd = *flags; -+ break; -+ -+ case 'a': /*cmd: kazaa*/ -+ if ((*flags & IPP2P_KAZAA) == IPP2P_KAZAA) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--kazaa' may only be " -+ "specified once!"); -+/* if ((*flags & SHORT_HAND_DATA) == SHORT_HAND_DATA) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--ipp2p-data' may only be " -+ "specified alone!");*/ -+ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--ipp2p' may only be " -+ "specified alone!"); -+ if ((*flags & IPP2P_DATA_KAZAA) == IPP2P_DATA_KAZAA) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: use `--kazaa' OR `--kazaa-data' but not both of them!"); -+ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); -+ *flags += IPP2P_KAZAA; -+ info->cmd = *flags; -+ break; -+ -+ case 'b': /*cmd: bit*/ -+ if ((*flags & IPP2P_BIT) == IPP2P_BIT) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--bit' may only be " -+ "specified once!"); -+ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--ipp2p' may only be " -+ "specified alone!"); -+ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); -+ *flags += IPP2P_BIT; -+ info->cmd = *flags; -+ break; -+ -+ case 'c': /*cmd: apple*/ -+ if ((*flags & IPP2P_APPLE) == IPP2P_APPLE) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--apple' may only be " -+ "specified once!"); -+ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--ipp2p' may only be " -+ "specified alone!"); -+ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); -+ *flags += IPP2P_APPLE; -+ info->cmd = *flags; -+ break; -+ -+ -+ case 'd': /*cmd: soul*/ -+ if ((*flags & IPP2P_SOUL) == IPP2P_SOUL) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--soul' may only be " -+ "specified once!"); -+ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--ipp2p' may only be " -+ "specified alone!"); -+ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); -+ *flags += IPP2P_SOUL; -+ info->cmd = *flags; -+ break; -+ -+ -+ case 'e': /*cmd: winmx*/ -+ if ((*flags & IPP2P_WINMX) == IPP2P_WINMX) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--winmx' may only be " -+ "specified once!"); -+ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--ipp2p' may only be " -+ "specified alone!"); -+ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); -+ *flags += IPP2P_WINMX; -+ info->cmd = *flags; -+ break; -+ -+ case 'f': /*cmd: ares*/ -+ if ((*flags & IPP2P_ARES) == IPP2P_ARES) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--ares' may only be " -+ "specified once!"); -+ if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--ipp2p' may only be " -+ "specified alone!"); -+ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); -+ *flags += IPP2P_ARES; -+ info->cmd = *flags; -+ break; -+ -+ case 'g': /*cmd: mute*/ -+ if ((*flags & IPP2P_MUTE) == IPP2P_MUTE) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--mute' may only be " -+ "specified once!"); -+ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); -+ *flags += IPP2P_MUTE; -+ info->cmd = *flags; -+ break; -+ case 'h': /*cmd: waste*/ -+ if ((*flags & IPP2P_WASTE) == IPP2P_WASTE) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--waste' may only be " -+ "specified once!"); -+ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); -+ *flags += IPP2P_WASTE; -+ info->cmd = *flags; -+ break; -+ case 'i': /*cmd: xdcc*/ -+ if ((*flags & IPP2P_XDCC) == IPP2P_XDCC) -+ xtables_error(PARAMETER_PROBLEM, -+ "ipp2p: `--ares' may only be " -+ "specified once!"); -+ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); -+ *flags += IPP2P_XDCC; -+ info->cmd = *flags; -+ break; -+ -+ case 'j': /*cmd: debug*/ -+ if (invert) xtables_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!"); -+ info->debug = 1; -+ break; -+ -+ default: -+// xtables_error(PARAMETER_PROBLEM, -+// "\nipp2p-parameter problem: for ipp2p usage type: iptables -m ipp2p --help\n"); -+ return 0; -+ } -+ return 1; -+} -+ -+ -+static void -+final_check(unsigned int flags) -+{ -+ if (!flags) -+ xtables_error(PARAMETER_PROBLEM, -+ "\nipp2p-parameter problem: for ipp2p usage type: iptables -m ipp2p --help\n"); -+} -+ -+static void -+#ifdef _XTABLES_H -+print(const void *ip, -+ const struct xt_entry_match *match, -+#else -+print(const struct ipt_ip *ip, -+ const struct ipt_entry_match *match, -+#endif -+ int numeric) -+{ -+ struct ipt_p2p_info *info = (struct ipt_p2p_info *)match->data; -+ -+ printf("ipp2p v%s", IPP2P_VERSION); -+ if ((info->cmd & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) printf(" --ipp2p"); -+// if ((info->cmd & SHORT_HAND_DATA) == SHORT_HAND_DATA) printf(" --ipp2p-data"); -+ if ((info->cmd & IPP2P_KAZAA) == IPP2P_KAZAA) printf(" --kazaa"); -+// if ((info->cmd & IPP2P_DATA_KAZAA) == IPP2P_DATA_KAZAA) printf(" --kazaa-data"); -+// if ((info->cmd & IPP2P_DATA_GNU) == IPP2P_DATA_GNU) printf(" --gnu-data"); -+ if ((info->cmd & IPP2P_GNU) == IPP2P_GNU) printf(" --gnu"); -+ if ((info->cmd & IPP2P_EDK) == IPP2P_EDK) printf(" --edk"); -+// if ((info->cmd & IPP2P_DATA_EDK) == IPP2P_DATA_EDK) printf(" --edk-data"); -+// if ((info->cmd & IPP2P_DATA_DC) == IPP2P_DATA_DC) printf(" --dc-data"); -+ if ((info->cmd & IPP2P_DC) == IPP2P_DC) printf(" --dc"); -+ if ((info->cmd & IPP2P_BIT) == IPP2P_BIT) printf(" --bit"); -+ if ((info->cmd & IPP2P_APPLE) == IPP2P_APPLE) printf(" --apple"); -+ if ((info->cmd & IPP2P_SOUL) == IPP2P_SOUL) printf(" --soul"); -+ if ((info->cmd & IPP2P_WINMX) == IPP2P_WINMX) printf(" --winmx"); -+ if ((info->cmd & IPP2P_ARES) == IPP2P_ARES) printf(" --ares"); -+ if ((info->cmd & IPP2P_MUTE) == IPP2P_MUTE) printf(" --mute"); -+ if ((info->cmd & IPP2P_WASTE) == IPP2P_WASTE) printf(" --waste"); -+ if ((info->cmd & IPP2P_XDCC) == IPP2P_XDCC) printf(" --xdcc"); -+ if (info->debug != 0) printf(" --debug"); -+ printf(" "); -+} -+ -+static void -+#ifdef _XTABLES_H -+save(const void *ip, -+ const struct xt_entry_match *match) -+#else -+save(const struct ipt_ip *ip, -+ const struct ipt_entry_match *match) -+#endif -+{ -+ struct ipt_p2p_info *info = (struct ipt_p2p_info *)match->data; -+ -+ if ((info->cmd & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P) printf("--ipp2p "); -+// if ((info->cmd & SHORT_HAND_DATA) == SHORT_HAND_DATA) printf("--ipp2p-data "); -+ if ((info->cmd & IPP2P_KAZAA) == IPP2P_KAZAA) printf("--kazaa "); -+// if ((info->cmd & IPP2P_DATA_KAZAA) == IPP2P_DATA_KAZAA) printf("--kazaa-data "); -+// if ((info->cmd & IPP2P_DATA_GNU) == IPP2P_DATA_GNU) printf("--gnu-data "); -+ if ((info->cmd & IPP2P_GNU) == IPP2P_GNU) printf("--gnu "); -+ if ((info->cmd & IPP2P_EDK) == IPP2P_EDK) printf("--edk "); -+// if ((info->cmd & IPP2P_DATA_EDK) == IPP2P_DATA_EDK) printf("--edk-data "); -+// if ((info->cmd & IPP2P_DATA_DC) == IPP2P_DATA_DC) printf("--dc-data "); -+ if ((info->cmd & IPP2P_DC) == IPP2P_DC) printf("--dc "); -+ if ((info->cmd & IPP2P_BIT) == IPP2P_BIT) printf("--bit "); -+ if ((info->cmd & IPP2P_APPLE) == IPP2P_APPLE) printf("--apple "); -+ if ((info->cmd & IPP2P_SOUL) == IPP2P_SOUL) printf("--soul "); -+ if ((info->cmd & IPP2P_WINMX) == IPP2P_WINMX) printf("--winmx "); -+ if ((info->cmd & IPP2P_ARES) == IPP2P_ARES) printf("--ares "); -+ if ((info->cmd & IPP2P_MUTE) == IPP2P_MUTE) printf(" --mute"); -+ if ((info->cmd & IPP2P_WASTE) == IPP2P_WASTE) printf(" --waste"); -+ if ((info->cmd & IPP2P_XDCC) == IPP2P_XDCC) printf(" --xdcc"); -+ if (info->debug != 0) printf("--debug "); -+} -+ -+ -+static -+struct xtables_match ipp2p= -+{ -+ .next = NULL, -+ .name = "ipp2p", -+ .version = XTABLES_VERSION, -+ .size = IPT_ALIGN(sizeof(struct ipt_p2p_info)), -+ .userspacesize = IPT_ALIGN(sizeof(struct ipt_p2p_info)), -+ .help = &help, -+ .init = &init, -+ .parse = &parse, -+ .final_check = &final_check, -+ .print = &print, -+ .save = &save, -+ .extra_opts = opts -+}; -+ -+ -+ -+void _init(void) -+{ -+ xtables_register_match(&ipp2p); -+} -+ -diff -Naur iptables-1.4.6.org/extensions/libipt_ipp2p.man iptables-1.4.6/extensions/libipt_ipp2p.man ---- iptables-1.4.6.org/extensions/libipt_ipp2p.man 1970-01-01 01:00:00.000000000 +0100 -+++ iptables-1.4.6/extensions/libipt_ipp2p.man 2010-02-13 20:02:52.000000000 +0100 -@@ -0,0 +1,43 @@ -+This module matches certain packets in P2P flows. It is not -+designed to match all packets belonging to a P2P connection - -+use IPP2P together with CONNMARK for this purpose. Also visit -+http://www.ipp2p.org for detailed information. -+ -+Use it together with -p tcp or -p udp to search these protocols -+only or without -p switch to search packets of both protocols. -+ -+IPP2P provides the following options: -+.TP -+.B "--edk " -+Matches as many eDonkey/eMule packets as possible. -+.TP -+.B "--kazaa " -+Matches as many KaZaA packets as possible. -+.TP -+.B "--gnu " -+Matches as many Gnutella packets as possible. -+.TP -+.B "--dc " -+Matches as many Direct Connect packets as possible. -+.TP -+.B "--bit " -+Matches BitTorrent packets. -+.TP -+.B "--apple " -+Matches AppleJuice packets. -+.TP -+.B "--soul " -+Matches some SoulSeek packets. Considered as beta, use careful! -+.TP -+.B "--winmx " -+Matches some WinMX packets. Considered as beta, use careful! -+.TP -+.B "--ares " -+Matches Ares and AresLite packets. Use together with -j DROP only. -+.TP -+.B "--ipp2p " -+Short hand for: --edk --kazaa --gnu --dc -+.TP -+.B "--debug " -+Prints some information about each hit into kernel logfile. May -+produce huge logfiles so beware! diff --git a/src/patches/miniupnpd-1.4_use_XT_ALIGN.patch b/src/patches/miniupnpd-1.4_use_XT_ALIGN.patch new file mode 100644 index 0000000..8c33222 --- /dev/null +++ b/src/patches/miniupnpd-1.4_use_XT_ALIGN.patch @@ -0,0 +1,47 @@ +diff -Naur miniupnpd-1.4.org/netfilter/iptcrdr.c miniupnpd-1.4/netfilter/iptcrdr.c +--- miniupnpd-1.4.org/netfilter/iptcrdr.c 2009-10-10 21:19:41.000000000 +0200 ++++ miniupnpd-1.4/netfilter/iptcrdr.c 2012-07-29 16:09:42.640363971 +0200 +@@ -443,8 +443,8 @@ + struct ipt_entry_match *match; + struct ipt_tcp * tcpinfo; + size_t size; +- size = IPT_ALIGN(sizeof(struct ipt_entry_match)) +- + IPT_ALIGN(sizeof(struct ipt_tcp)); ++ size = XT_ALIGN(sizeof(struct ipt_entry_match)) ++ + XT_ALIGN(sizeof(struct ipt_tcp)); + match = calloc(1, size); + match->u.match_size = size; + strncpy(match->u.user.name, "tcp", IPT_FUNCTION_MAXNAMELEN); +@@ -462,8 +462,8 @@ + struct ipt_entry_match *match; + struct ipt_udp * udpinfo; + size_t size; +- size = IPT_ALIGN(sizeof(struct ipt_entry_match)) +- + IPT_ALIGN(sizeof(struct ipt_udp)); ++ size = XT_ALIGN(sizeof(struct ipt_entry_match)) ++ + XT_ALIGN(sizeof(struct ipt_udp)); + match = calloc(1, size); + match->u.match_size = size; + strncpy(match->u.user.name, "udp", IPT_FUNCTION_MAXNAMELEN); +@@ -483,8 +483,8 @@ + struct ip_nat_range * range; + size_t size; + +- size = IPT_ALIGN(sizeof(struct ipt_entry_target)) +- + IPT_ALIGN(sizeof(struct ip_nat_multi_range)); ++ size = XT_ALIGN(sizeof(struct ipt_entry_target)) ++ + XT_ALIGN(sizeof(struct ip_nat_multi_range)); + target = calloc(1, size); + target->u.target_size = size; + strncpy(target->u.user.name, "DNAT", IPT_FUNCTION_MAXNAMELEN); +@@ -614,8 +614,8 @@ + { + struct ipt_entry_target * target = NULL; + size_t size; +- size = IPT_ALIGN(sizeof(struct ipt_entry_target)) +- + IPT_ALIGN(sizeof(int)); ++ size = XT_ALIGN(sizeof(struct ipt_entry_target)) ++ + XT_ALIGN(sizeof(int)); + target = calloc(1, size); + target->u.user.target_size = size; + strncpy(target->u.user.name, "ACCEPT", IPT_FUNCTION_MAXNAMELEN); hooks/post-receive -- IPFire 2.x development tree

1 0

[IPFire-SCM] [git.ipfire.org] IPFire 3.x development tree branch, master, updated. 74af03130fc87ecb5a25b23d39ff03c2f2c971a7
by git＠ipfire.org 29 Jul '12

29 Jul '12

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "IPFire 3.x development tree". The branch, master has been updated via 74af03130fc87ecb5a25b23d39ff03c2f2c971a7 (commit) via c33262e903cdec01b237395e2da569ea56424065 (commit) via de97dc24cbe5d7a5e6ee5d0418e3ed9e6361a572 (commit) via 07a1e2bad0d7211380f08cdae6049e0d5733a7d3 (commit) via d3d304e4884ecd596ebedaee1f8288c70070987e (commit) via a3b813f71938ecfc629cf720475a0741e9deb9ec (commit) via 2db316fd9a07ac46282e7570811b7a27fa456dfc (commit) via 282c55e8cb152e37b6371f8357fef9c027542a56 (commit) from cb8d2bc602b6c360daafa34f5c856066bf4f2f1a (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 74af03130fc87ecb5a25b23d39ff03c2f2c971a7 Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Sun Jul 29 12:42:01 2012 +0200 libcap-ng: Update to 0.7. Fixes #10194. commit c33262e903cdec01b237395e2da569ea56424065 Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Sun Jul 29 12:39:55 2012 +0200 iproute2: Update to 3.4.0. Fixes #10196. commit de97dc24cbe5d7a5e6ee5d0418e3ed9e6361a572 Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Sun Jul 29 12:15:19 2012 +0200 flex: Update to 2.5.36. Fixes #10198. commit 07a1e2bad0d7211380f08cdae6049e0d5733a7d3 Author: Kim Barthel <kbarthel(a)ipfire.org> Date: Mon Jul 23 23:11:42 2012 +0200 mc: Latest stable release 4.8.1.4. Fixes #10187 commit d3d304e4884ecd596ebedaee1f8288c70070987e Merge: a3b813f 282c55e Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Sun Jul 29 12:08:46 2012 +0200 Merge remote-tracking branch 'kbarthel/mc' commit a3b813f71938ecfc629cf720475a0741e9deb9ec Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Sun Jul 29 11:47:23 2012 +0200 pigz: New package. Parallel compression, decompression for gzip. commit 2db316fd9a07ac46282e7570811b7a27fa456dfc Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Sun Jul 29 11:46:24 2012 +0200 transifex-client: Change summary. commit 282c55e8cb152e37b6371f8357fef9c027542a56 Author: Kim Barthel <kbarthel(a)ipfire.org> Date: Mon Jul 23 23:11:42 2012 +0200 Latest stable release Fixes #10187 ----------------------------------------------------------------------- Summary of changes: flex/flex.nm | 29 ++++++------- iproute2/iproute2.nm | 6 +- iproute2/patches/iproute2-2.6.29-kernel.patch | 11 ----- iproute2/patches/iproute2-3.4.0-kernel.patch | 12 +++++ iproute2/patches/iproute2-3.4.0-optflags.patch | 13 ++++++ ...repath.patch => iproute2-3.4.0-sharepath.patch} | 11 +++-- iproute2/patches/iproute2-print-route-u32.patch | 20 --------- iproute2/patches/iproute2-ss050901-opt_flags.patch | 12 ----- iproute2/patches/man-pages.patch | 6 --- libcap-ng/libcap-ng.nm | 9 +--- mc/mc.nm | 3 +- pigz/pigz.nm | 44 ++++++++++++++++++++ transifex-client/transifex-client.nm | 4 +- 13 files changed, 99 insertions(+), 81 deletions(-) delete mode 100644 iproute2/patches/iproute2-2.6.29-kernel.patch create mode 100644 iproute2/patches/iproute2-3.4.0-kernel.patch create mode 100644 iproute2/patches/iproute2-3.4.0-optflags.patch rename iproute2/patches/{iproute2-sharepath.patch => iproute2-3.4.0-sharepath.patch} (50%) delete mode 100644 iproute2/patches/iproute2-print-route-u32.patch delete mode 100644 iproute2/patches/iproute2-ss050901-opt_flags.patch create mode 100644 pigz/pigz.nm Difference in files: diff --git a/flex/flex.nm b/flex/flex.nm index b7eb973..fa2578a 100644 --- a/flex/flex.nm +++ b/flex/flex.nm @@ -4,8 +4,8 @@ ############################################################################### name = flex -version = 2.5.35 -release = 4 +version = 2.5.36 +release = 1 groups = Development/Tools url = http://flex.sourceforge.net/ @@ -13,19 +13,18 @@ license = BSD summary = A tool for creating scanners (text pattern recognizers). description - The flex program generates scanners. Scanners are programs which can \ - recognize lexical patterns in text. Flex takes pairs of regular \ - expressions and C code as input and generates a C source file as \ - output. The output file is compiled and linked with a library to \ - produce an executable. The executable searches through its input for \ - occurrences of the regular expressions. When a match is found, it \ - executes the corresponding C code. Flex was designed to work with \ - both Yacc and Bison, and is used by many programs as part of their \ + The flex program generates scanners. Scanners are programs which can + recognize lexical patterns in text. Flex takes pairs of regular + expressions and C code as input and generates a C source file as + output. The output file is compiled and linked with a library to + produce an executable. The executable searches through its input for + occurrences of the regular expressions. When a match is found, it + executes the corresponding C code. Flex was designed to work with + both Yacc and Bison, and is used by many programs as part of their build process. end -source_dl = -sources = %{thisapp}.tar.bz2 +source_dl = http://prdownloads.sourceforge.net/flex/ build requires @@ -36,9 +35,9 @@ build keep_libraries = %{libdir}/libfl_pic.a - #test - # make check - #end + test + make check + end install_cmds echo "#!/bin/sh" > %{BUILDROOT}/usr/bin/lex diff --git a/iproute2/iproute2.nm b/iproute2/iproute2.nm index 9d85951..31dd9da 100644 --- a/iproute2/iproute2.nm +++ b/iproute2/iproute2.nm @@ -4,7 +4,7 @@ ############################################################################### name = iproute2 -version = 3.3.0 +version = 3.4.0 release = 1 groups = Networking/Tools @@ -18,7 +18,7 @@ description capabilities of the Linux 2.4.x and 2.6.x kernel. end -source_dl = +source_dl = http://kernel.org/pub/linux/utils/net/iproute2/ sources = %{thisapp}.tar.xz build @@ -52,7 +52,7 @@ build %{BUILDROOT}%{sysconfdir}/iproute2 # Install binaries. - for bin in genl/genl ip/{ifcfg,ip,routef,routel,rtpr} tc/tc \ + for bin in genl/genl ip/{ifcfg,ip,routef,routel,rtmon,rtpr} tc/tc \ misc/{arpd,ifstat,lnstat,nstat,rtacct,ss}; do install -v -m 755 ${bin} %{BUILDROOT}%{sbindir} done diff --git a/iproute2/patches/iproute2-2.6.29-kernel.patch b/iproute2/patches/iproute2-2.6.29-kernel.patch deleted file mode 100644 index df9125a..0000000 --- a/iproute2/patches/iproute2-2.6.29-kernel.patch +++ /dev/null @@ -1,11 +0,0 @@ -diff -up iproute2-20091009/Makefile.kernel iproute2-20091009/Makefile ---- iproute2-20091009/Makefile.kernel 2009-09-21 10:26:11.000000000 +0200 -+++ iproute2-20091009/Makefile 2009-10-09 12:27:03.687382422 +0200 -@@ -6,6 +6,7 @@ CONFDIR=/etc/iproute2 - DOCDIR=/share/doc/iproute2 - MANDIR=/share/man - ARPDDIR=/var/lib/arpd -+KERNEL_INCLUDE=/usr/include - - # Path to db_185.h include - DBM_INCLUDE:=$(ROOTDIR)/usr/include diff --git a/iproute2/patches/iproute2-3.4.0-kernel.patch b/iproute2/patches/iproute2-3.4.0-kernel.patch new file mode 100644 index 0000000..1e83729 --- /dev/null +++ b/iproute2/patches/iproute2-3.4.0-kernel.patch @@ -0,0 +1,12 @@ +diff --git a/Makefile b/Makefile +index c107955..1e15c72 100644 +--- a/Makefile ++++ b/Makefile +@@ -7,6 +7,7 @@ DATADIR=$(PREFIX)/share + DOCDIR=$(DATADIR)/doc/iproute2 + MANDIR=$(DATADIR)/man + ARPDDIR=/var/lib/arpd ++KERNEL_INCLUDE=/usr/include + + # Path to db_185.h include + DBM_INCLUDE:=$(ROOTDIR)/usr/include diff --git a/iproute2/patches/iproute2-3.4.0-optflags.patch b/iproute2/patches/iproute2-3.4.0-optflags.patch new file mode 100644 index 0000000..1dd23cf --- /dev/null +++ b/iproute2/patches/iproute2-3.4.0-optflags.patch @@ -0,0 +1,13 @@ +diff --git a/Makefile b/Makefile +index 1e15c72..945d3b3 100644 +--- a/Makefile ++++ b/Makefile +@@ -36,7 +36,7 @@ HOSTCC = gcc + DEFINES += -D_GNU_SOURCE + CCOPTS = -O2 + WFLAGS = -Wall -Wstrict-prototypes +-CFLAGS = $(WFLAGS) $(CCOPTS) -I../include $(DEFINES) ++CFLAGS = $(WFLAGS) $(CCOPTS) -I../include $(DEFINES) $(RPM_OPT_FLAGS) + YACCFLAGS = -d -t -v + + SUBDIRS=lib ip tc misc netem genl man diff --git a/iproute2/patches/iproute2-3.4.0-sharepath.patch b/iproute2/patches/iproute2-3.4.0-sharepath.patch new file mode 100644 index 0000000..2a29677 --- /dev/null +++ b/iproute2/patches/iproute2-3.4.0-sharepath.patch @@ -0,0 +1,24 @@ +diff --git a/tc/tc_util.c b/tc/tc_util.c +index 926ed08..33f6974 100644 +--- a/tc/tc_util.c ++++ b/tc/tc_util.c +@@ -24,8 +24,8 @@ + #include "utils.h" + #include "tc_util.h" + +-#ifndef LIBDIR +-#define LIBDIR "/usr/lib" ++#ifndef SHAREDIR ++#define SHAREDIR "/usr/share" + #endif + + const char *get_tc_lib(void) +@@ -34,7 +34,7 @@ const char *get_tc_lib(void) + + lib_dir = getenv("TC_LIB_DIR"); + if (!lib_dir) +- lib_dir = LIBDIR "/tc/"; ++ lib_dir = SHAREDIR "/tc/"; + + return lib_dir; + } diff --git a/iproute2/patches/iproute2-print-route-u32.patch b/iproute2/patches/iproute2-print-route-u32.patch deleted file mode 100644 index 48920d8..0000000 --- a/iproute2/patches/iproute2-print-route-u32.patch +++ /dev/null @@ -1,20 +0,0 @@ ---- iproute2-2.6.35/ip/iproute.c 2010-08-31 13:01:39.151185561 +0200 -+++ iproute2-print-route-u32.c 2010-08-31 13:41:04.072928779 +0200 -@@ -368,7 +368,7 @@ - abuf, sizeof(abuf))); - } - if (tb[RTA_PRIORITY]) -- fprintf(fp, " metric %d ", *(__u32*)RTA_DATA(tb[RTA_PRIORITY])); -+ fprintf(fp, " metric %u ", *(__u32*)RTA_DATA(tb[RTA_PRIORITY])); - if (r->rtm_flags & RTNH_F_DEAD) - fprintf(fp, "dead "); - if (r->rtm_flags & RTNH_F_ONLINK) -@@ -487,7 +487,7 @@ - if (i < sizeof(mx_names)/sizeof(char*) && mx_names[i]) - fprintf(fp, " %s", mx_names[i]); - else -- fprintf(fp, " metric %d", i); -+ fprintf(fp, " metric %u", i); - if (mxlock & (1<<i)) - fprintf(fp, " lock"); - diff --git a/iproute2/patches/iproute2-sharepath.patch b/iproute2/patches/iproute2-sharepath.patch deleted file mode 100644 index f314922..0000000 --- a/iproute2/patches/iproute2-sharepath.patch +++ /dev/null @@ -1,23 +0,0 @@ -diff -up iproute-2.6.29/iproute2-2.6.29/tc/tc_util.c.movelib iproute-2.6.29/iproute2-2.6.29/tc/tc_util.c ---- iproute2-2.6.29/tc/tc_util.c.movelib 2009-01-15 21:25:04.000000000 +0100 -+++ iproute2-2.6.29/tc/tc_util.c 2009-02-04 08:58:36.000000000 +0100 -@@ -24,8 +24,8 @@ - #include "utils.h" - #include "tc_util.h" - --#ifndef LIBDIR --#define LIBDIR "/usr/lib/" -+#ifndef SHAREDIR -+#define SHAREDIR "/usr/share/" - #endif - - const char *get_tc_lib(void) -@@ -34,7 +34,7 @@ const char *get_tc_lib(void) - - lib_dir = getenv("TC_LIB_DIR"); - if (!lib_dir) -- lib_dir = LIBDIR "/tc/"; -+ lib_dir = SHAREDIR "/tc/"; - - return lib_dir; - } diff --git a/iproute2/patches/iproute2-ss050901-opt_flags.patch b/iproute2/patches/iproute2-ss050901-opt_flags.patch deleted file mode 100644 index 686bf68..0000000 --- a/iproute2/patches/iproute2-ss050901-opt_flags.patch +++ /dev/null @@ -1,12 +0,0 @@ -diff -up iproute2-2.6.29/iproute2-2.6.29/Makefile.opt iproute2-2.6.29/iproute2-2.6.29/Makefile ---- iproute2-2.6.29/Makefile.opt 2008-08-12 14:19:58.000000000 +0200 -+++ iproute2-2.6.29/Makefile 2008-08-12 14:21:42.000000000 +0200 -@@ -22,7 +22,7 @@ ADDLIB+=ipx_ntop.o ipx_pton.o - - CC = gcc - HOSTCC = gcc --CCOPTS = -D_GNU_SOURCE -O2 -Wstrict-prototypes -Wall -+CCOPTS = -D_GNU_SOURCE -O2 -Wstrict-prototypes -Wall $(RPM_OPT_FLAGS) - CFLAGS = $(CCOPTS) -I../include $(DEFINES) - YACCFLAGS = -d -t -v - diff --git a/iproute2/patches/man-pages.patch b/iproute2/patches/man-pages.patch index 1592889..9199e3e 100644 --- a/iproute2/patches/man-pages.patch +++ b/iproute2/patches/man-pages.patch @@ -65,12 +65,6 @@ diff -up /dev/null iproute2-2.6.29/man/man8/ifcfg.8 + +.SH SEE ALSO +.BR ip-cref.dvi -diff -up /dev/null iproute2-2.6.29/man/man8/nstat.8 ---- /dev/null 2009-09-22 09:26:40.270218984 +0200 -+++ iproute2-2.6.29/man/man8/nstat.8 2009-09-24 14:03:05.416161849 +0200 -@@ -0,0 +1 @@ -+.so man8/rtacct.8 -\ No newline at end of file --- iproute2-2.6.35/man/man8/ss.8 2010-08-04 19:45:59.000000000 +0200 +++ iproute2-2.6.35/man/man8/ss.8.new 2010-10-11 14:47:06.084216018 +0200 @@ -114,7 +114,7 @@ diff --git a/libcap-ng/libcap-ng.nm b/libcap-ng/libcap-ng.nm index 7e968c1..1fa16e9 100644 --- a/libcap-ng/libcap-ng.nm +++ b/libcap-ng/libcap-ng.nm @@ -4,8 +4,8 @@ ############################################################################### name = libcap-ng -version = 0.6.6 -release = 3 +version = 0.7 +release = 1 groups = System/Libraries url = http://people.redhat.com/sgrubb/libcap-ng @@ -25,10 +25,7 @@ build python end - # XXX Testsuite is broken by the package developers - #def test - # make check - #end + # The testsuite is broken by the package developers end packages diff --git a/mc/mc.nm b/mc/mc.nm index fcba89f..c585ed6 100644 --- a/mc/mc.nm +++ b/mc/mc.nm @@ -4,8 +4,9 @@ ############################################################################### name = mc -version = 4.8.3 +version = 4.8.1.4 release = 1 +epoch = 1 groups = Applications/System url = http://www.ibiblio.org/mc/ diff --git a/pigz/pigz.nm b/pigz/pigz.nm new file mode 100644 index 0000000..27a30a2 --- /dev/null +++ b/pigz/pigz.nm @@ -0,0 +1,44 @@ +############################################################################### +# IPFire.org - An Open Source Firewall Solution # +# Copyright (C) - IPFire Development Team <info(a)ipfire.org> # +############################################################################### + +name = pigz +version = 2.2.5 +release = 1 + +groups = Applications/Compression +url = http://www.zlib.net/pigz/ +license = zlib +summary = Parallel implementation of gzip. + +description + pigz, which stands for parallel implementation of gzip, + is a fully functional replacement for gzip that exploits + multiple processors and multiple cores to the hilt when compressing + data. +end + +source_dl = %{url} + +build + requires + zlib-devel + end + + make_build_targets += CFLAGS="%{CFLAGS}" + + install + install -p -D pigz %{BUILDROOT}%{bindir}/pigz + ln -svf pigz %{BUILDROOT}%{bindir}/unpigz + install -p -D pigz.1 -m 644 %{BUILDROOT}%{mandir}/man1/pigz.1 + end +end + +packages + package %{name} + + package %{name}-debuginfo + template DEBUGINFO + end +end diff --git a/transifex-client/transifex-client.nm b/transifex-client/transifex-client.nm index 39e03fa..b3f0e74 100644 --- a/transifex-client/transifex-client.nm +++ b/transifex-client/transifex-client.nm @@ -5,13 +5,13 @@ name = transifex-client version = 0.7.3 -release = 1 +release = 2 arch = noarch groups = Development/Tools url = http://transifex.org license = GPLv2 -summary = A tool for creating scanners (text pattern recognizers). +summary = Command line tool for Transifex translation management. description The Transifex Command-line Client is a command line tool that enables hooks/post-receive -- IPFire 3.x development tree

1 0

[IPFire-SCM] [git.ipfire.org] IPFire 2.x development tree branch, kernel-update, updated. 50b5d7ce0bc813a35d3daaba150a87c1ae990faa
by git＠ipfire.org 28 Jul '12

28 Jul '12

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "IPFire 2.x development tree". The branch, kernel-update has been updated via 50b5d7ce0bc813a35d3daaba150a87c1ae990faa (commit) via 9776dede5dfed3803272ccbe627f862481cbdcd2 (commit) via 3d08d9377d220d4be9238270599fab53f8d66d1b (commit) via bec9089df8be9090e82ad5442176f6b7b4c6897b (commit) via 8a21b99afe9587ab043fcc8ee6b7a28c7d435a55 (commit) via a81cf4fee51002221b269d2b5d90d7632052e9d9 (commit) via 162fe203c5be7f6c5d541b7d5c7d675b67f0749b (commit) via 33a2c62fb34958200189b40a2f4b8f6b94907702 (commit) via e41b341fafa73cc7126e7e7ac0847a301e255d66 (commit) via 75556d531bccbd916f6f05064ae499b285f23034 (commit) via 00b73e3b0fea55577ee03a04935dd12467cdfd2b (commit) via 4dca0bd05db7369de01cbf28ade0a1f1e940798a (commit) via 86d3ada4c67a095d12b897be84bd93a053c8b15f (commit) via 7c8031e54e0be4e2575c73d01da725849b62efc1 (commit) via ee717901edaf6e7496cdd649e29c0b5b06cf67b4 (commit) from 141c7c95753e00366d0e993d879db1cdc5dc870d (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 50b5d7ce0bc813a35d3daaba150a87c1ae990faa Author: Arne Fitzenreiter <arne_f(a)ipfire.org> Date: Sat Jul 28 13:02:59 2012 +0200 usb-stick: fix path of mbr-install. commit 9776dede5dfed3803272ccbe627f862481cbdcd2 Merge: 141c7c9 3d08d93 Author: Arne Fitzenreiter <arne_f(a)ipfire.org> Date: Fri Jul 27 17:34:45 2012 +0200 Merge remote-tracking branch 'ms/thirteen' into kernel-update commit 3d08d9377d220d4be9238270599fab53f8d66d1b Author: Jan Lentfer <jan.lentfer(a)ipfire.org> Date: Sat Jun 16 12:31:18 2012 +0200 asterisk: Update to 1.8.13.0. The 1.4 branch of asterisk does not build with the new flex and bison. Also, the 1.4 branch was EOL'ed April 2012. The 1.8 branch has long term support until 2015. This patch also update chan_capi to the most recent version (HEAD), as this is the only one that compiles with asterisk 1.8. Asterisk 1.8 ships addons as part of the main tarball. Asterisk 1.8 has no build in mp3 support anymore, mp3 libs need to be downloaded seperatly via svn (see asterisk-1.8.13.0/contrib/scripts/get_mp3_source.sh). This patch DOES NOT include mp3 support. Signed-off-by: Michael Tremer <michael.tremer(a)ipfire.org> commit bec9089df8be9090e82ad5442176f6b7b4c6897b Author: Jan Lentfer <jan.lentfer(a)ipfire.org> Date: Sat Jun 16 12:27:04 2012 +0200 lcr: Update to 1.10. This is a prerequisite for updating asterisk. Signed-off-by: Michael Tremer <michael.tremer(a)ipfire.org> commit 8a21b99afe9587ab043fcc8ee6b7a28c7d435a55 Author: Jan Lentfer <jan.lentfer(a)ipfire.org> Date: Sat Jun 16 12:24:32 2012 +0200 pam: Update 0.99.10.0. The prior verion in base system did not build with the new version of bison and flex. Signed-off-by: Michael Tremer <michael.tremer(a)ipfire.org> commit a81cf4fee51002221b269d2b5d90d7632052e9d9 Author: Jan Lentfer <jan.lentfer(a)ipfire.org> Date: Sat Jun 16 12:22:31 2012 +0200 flex: Update to 2.5.35. Signed-off-by: Michael Tremer <michael.tremer(a)ipfire.org> commit 162fe203c5be7f6c5d541b7d5c7d675b67f0749b Author: Jan Lentfer <jan.lentfer(a)ipfire.org> Date: Sat Jun 16 12:21:12 2012 +0200 m4: Update to 1.4.16. This is a prerequisite for updating bison and flex Signed-off-by: Michael Tremer <michael.tremer(a)ipfire.org> commit 33a2c62fb34958200189b40a2f4b8f6b94907702 Author: Jan Lentfer <jan.lentfer(a)ipfire.org> Date: Sat Jun 16 12:17:57 2012 +0200 bison: Update to 2.5.1. Signed-off-by: Michael Tremer <michael.tremer(a)ipfire.org> commit e41b341fafa73cc7126e7e7ac0847a301e255d66 Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Fri Jun 15 11:36:40 2012 +0200 mbr: Update to 1.1.11 and move tools to /usr. The previous version did not build with the new kernel headers. commit 75556d531bccbd916f6f05064ae499b285f23034 Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Fri Jun 15 11:35:13 2012 +0200 sdl: Add patches for PAGE_SIZE on i586 as well. asm/page.h does not exist in the new kernel headers and that needs to be fixed in the SDL code. commit 00b73e3b0fea55577ee03a04935dd12467cdfd2b Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Fri Jun 15 11:34:09 2012 +0200 man: Remove obsolete compiler flag to fix the build. commit 4dca0bd05db7369de01cbf28ade0a1f1e940798a Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Fri Jun 15 11:32:00 2012 +0200 libc-headers: Extract header files from kernel. Previously, there have been header sanizied header files used from kernel 2.6.12.0, which got harder to maintain over the years and may cause unseen problems. commit 86d3ada4c67a095d12b897be84bd93a053c8b15f Merge: 3e011c2 7c8031e Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Thu Jun 14 23:31:17 2012 +0200 Merge branch 'glibc-update' into thirteen commit 7c8031e54e0be4e2575c73d01da725849b62efc1 Merge: ee71790 81b2c3f Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Wed Jun 13 18:41:17 2012 +0200 Merge branch 'next' of ssh://git.ipfire.org/pub/git/ipfire-2.x into glibc-update commit ee717901edaf6e7496cdd649e29c0b5b06cf67b4 Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Wed Jun 13 15:22:56 2012 +0200 glibc: Update to 2.5 on i586. This enabled IPFire to run some precompiled third-party software on it. We may as well expect some performance improvements. ----------------------------------------------------------------------- Summary of changes: config/rootfiles/common/armv5tel/glibc | 14 +- config/rootfiles/common/i586/glibc | 201 ++- config/rootfiles/common/linux-libc-header | 1624 ++++---------------- config/rootfiles/common/mbr | 5 +- lfs/glibc | 24 +- lfs/linux-libc-header | 105 -- lfs/man | 1 + lfs/mbr | 6 +- lfs/sdl | 2 - lfs/usb-stick | 4 +- make.sh | 12 +- ...libc-2.3.6-dont_use_origin_on_privil_exec.patch | 67 - src/patches/glibc-2.3.6-inotify-1.patch | 45 - src/patches/glibc-2.3.6-linux_types-1.patch | 33 - .../linux-libc-headers-2.6.12.0-inotify-3.patch | 115 -- 15 files changed, 418 insertions(+), 1840 deletions(-) delete mode 100644 lfs/linux-libc-header delete mode 100644 src/patches/glibc-2.3.6-dont_use_origin_on_privil_exec.patch delete mode 100644 src/patches/glibc-2.3.6-inotify-1.patch delete mode 100644 src/patches/glibc-2.3.6-linux_types-1.patch delete mode 100644 src/patches/linux-libc-headers-2.6.12.0-inotify-3.patch Difference in files: diff --git a/config/rootfiles/common/armv5tel/glibc b/config/rootfiles/common/armv5tel/glibc index 77db7bc..51cd839 100644 --- a/config/rootfiles/common/armv5tel/glibc +++ b/config/rootfiles/common/armv5tel/glibc @@ -2,10 +2,10 @@ lib/ld-2.5.so lib/ld-linux.so.3 lib/libBrokenLocale-2.5.so -#lib/libBrokenLocale.so.1 +lib/libBrokenLocale.so.1 #lib/libSegFault.so lib/libanl-2.5.so -#lib/libanl.so.1 +lib/libanl.so.1 lib/libc-2.5.so lib/libc.so.6 lib/libcrypt-2.5.so @@ -24,11 +24,11 @@ lib/libnss_dns.so.2 lib/libnss_files-2.5.so lib/libnss_files.so.2 lib/libnss_hesiod-2.5.so -#lib/libnss_hesiod.so.2 +lib/libnss_hesiod.so.2 lib/libnss_nis-2.5.so -#lib/libnss_nis.so.2 +lib/libnss_nis.so.2 lib/libnss_nisplus-2.5.so -#lib/libnss_nisplus.so.2 +lib/libnss_nisplus.so.2 #lib/libpcprofile.so lib/libpthread-2.5.so lib/libpthread.so.0 @@ -36,8 +36,8 @@ lib/libresolv-2.5.so lib/libresolv.so.2 lib/librt-2.5.so lib/librt.so.1 -#lib/libthread_db-1.0.so -#lib/libthread_db.so.1 +lib/libthread_db-1.0.so +lib/libthread_db.so.1 lib/libutil-2.5.so lib/libutil.so.1 sbin/ldconfig diff --git a/config/rootfiles/common/i586/glibc b/config/rootfiles/common/i586/glibc index 2648e70..7ceb057 100644 --- a/config/rootfiles/common/i586/glibc +++ b/config/rootfiles/common/i586/glibc @@ -1,46 +1,46 @@ -etc/ld.so.cache +#etc/ld.so.cache etc/localtime #etc/rpc -lib/ld-2.3.6.so +lib/ld-2.5.so lib/ld-linux.so.2 -#lib/libBrokenLocale-2.3.6.so -#lib/libBrokenLocale.so.1 +lib/libBrokenLocale-2.5.so +lib/libBrokenLocale.so.1 #lib/libSegFault.so -#lib/libanl-2.3.6.so -#lib/libanl.so.1 -lib/libc-2.3.6.so +lib/libanl-2.5.so +lib/libanl.so.1 +lib/libc-2.5.so lib/libc.so.6 -lib/libcrypt-2.3.6.so +lib/libcrypt-2.5.so lib/libcrypt.so.1 -lib/libdl-2.3.6.so +lib/libdl-2.5.so lib/libdl.so.2 -lib/libm-2.3.6.so +lib/libm-2.5.so lib/libm.so.6 #lib/libmemusage.so -lib/libnsl-2.3.6.so +lib/libnsl-2.5.so lib/libnsl.so.1 -lib/libnss_compat-2.3.6.so +lib/libnss_compat-2.5.so lib/libnss_compat.so.2 -lib/libnss_dns-2.3.6.so +lib/libnss_dns-2.5.so lib/libnss_dns.so.2 -lib/libnss_files-2.3.6.so +lib/libnss_files-2.5.so lib/libnss_files.so.2 -#lib/libnss_hesiod-2.3.6.so -#lib/libnss_hesiod.so.2 -#lib/libnss_nis-2.3.6.so -#lib/libnss_nis.so.2 -#lib/libnss_nisplus-2.3.6.so -#lib/libnss_nisplus.so.2 +lib/libnss_hesiod-2.5.so +lib/libnss_hesiod.so.2 +lib/libnss_nis-2.5.so +lib/libnss_nis.so.2 +lib/libnss_nisplus-2.5.so +lib/libnss_nisplus.so.2 #lib/libpcprofile.so -lib/libpthread-2.3.6.so +lib/libpthread-2.5.so lib/libpthread.so.0 -lib/libresolv-2.3.6.so +lib/libresolv-2.5.so lib/libresolv.so.2 -lib/librt-2.3.6.so +lib/librt-2.5.so lib/librt.so.1 -#lib/libthread_db-1.0.so -#lib/libthread_db.so.1 -lib/libutil-2.3.6.so +lib/libthread_db-1.0.so +lib/libthread_db.so.1 +lib/libutil-2.5.so lib/libutil.so.1 sbin/ldconfig #sbin/sln @@ -100,12 +100,15 @@ usr/bin/ldd #usr/include/bits/ipc.h #usr/include/bits/ipctypes.h #usr/include/bits/libc-lock.h +#usr/include/bits/libio-ldbl.h +#usr/include/bits/link.h #usr/include/bits/local_lim.h #usr/include/bits/locale.h #usr/include/bits/mathcalls.h #usr/include/bits/mathdef.h #usr/include/bits/mathinline.h #usr/include/bits/mman.h +#usr/include/bits/monetary-ldbl.h #usr/include/bits/mqueue.h #usr/include/bits/msq.h #usr/include/bits/nan.h @@ -114,6 +117,7 @@ usr/bin/ldd #usr/include/bits/posix1_lim.h #usr/include/bits/posix2_lim.h #usr/include/bits/posix_opt.h +#usr/include/bits/printf-ldbl.h #usr/include/bits/pthreadtypes.h #usr/include/bits/resource.h #usr/include/bits/sched.h @@ -131,32 +135,42 @@ usr/bin/ldd #usr/include/bits/sigthread.h #usr/include/bits/sockaddr.h #usr/include/bits/socket.h +#usr/include/bits/socket2.h #usr/include/bits/stab.def #usr/include/bits/stat.h #usr/include/bits/statfs.h #usr/include/bits/statvfs.h +#usr/include/bits/stdio-ldbl.h #usr/include/bits/stdio-lock.h #usr/include/bits/stdio.h #usr/include/bits/stdio2.h #usr/include/bits/stdio_lim.h +#usr/include/bits/stdlib-ldbl.h +#usr/include/bits/stdlib.h #usr/include/bits/string.h #usr/include/bits/string2.h #usr/include/bits/string3.h #usr/include/bits/stropts.h #usr/include/bits/sys_errlist.h #usr/include/bits/syscall.h +#usr/include/bits/syslog-ldbl.h +#usr/include/bits/syslog-path.h +#usr/include/bits/syslog.h #usr/include/bits/termios.h #usr/include/bits/time.h #usr/include/bits/types.h #usr/include/bits/typesizes.h #usr/include/bits/uio.h +#usr/include/bits/unistd.h #usr/include/bits/ustat.h #usr/include/bits/utmp.h #usr/include/bits/utmpx.h #usr/include/bits/utsname.h #usr/include/bits/waitflags.h #usr/include/bits/waitstatus.h +#usr/include/bits/wchar-ldbl.h #usr/include/bits/wchar.h +#usr/include/bits/wchar2.h #usr/include/bits/wordsize.h #usr/include/bits/xopen_lim.h #usr/include/bits/xtitypes.h @@ -190,6 +204,7 @@ usr/bin/ldd #usr/include/gnu-versions.h #usr/include/gnu/lib-names.h #usr/include/gnu/libc-version.h +#usr/include/gnu/stubs-32.h #usr/include/gnu/stubs.h #usr/include/grp.h #usr/include/iconv.h @@ -534,18 +549,52 @@ usr/bin/ldd #usr/lib/gconv/IBM037.so #usr/lib/gconv/IBM038.so #usr/lib/gconv/IBM1004.so +#usr/lib/gconv/IBM1008.so +#usr/lib/gconv/IBM1008_420.so +#usr/lib/gconv/IBM1025.so #usr/lib/gconv/IBM1026.so #usr/lib/gconv/IBM1046.so #usr/lib/gconv/IBM1047.so +#usr/lib/gconv/IBM1097.so +#usr/lib/gconv/IBM1112.so +#usr/lib/gconv/IBM1122.so +#usr/lib/gconv/IBM1123.so #usr/lib/gconv/IBM1124.so #usr/lib/gconv/IBM1129.so +#usr/lib/gconv/IBM1130.so #usr/lib/gconv/IBM1132.so #usr/lib/gconv/IBM1133.so +#usr/lib/gconv/IBM1137.so +#usr/lib/gconv/IBM1140.so +#usr/lib/gconv/IBM1141.so +#usr/lib/gconv/IBM1142.so +#usr/lib/gconv/IBM1143.so +#usr/lib/gconv/IBM1144.so +#usr/lib/gconv/IBM1145.so +#usr/lib/gconv/IBM1146.so +#usr/lib/gconv/IBM1147.so +#usr/lib/gconv/IBM1148.so +#usr/lib/gconv/IBM1149.so +#usr/lib/gconv/IBM1153.so +#usr/lib/gconv/IBM1154.so +#usr/lib/gconv/IBM1155.so +#usr/lib/gconv/IBM1156.so +#usr/lib/gconv/IBM1157.so +#usr/lib/gconv/IBM1158.so #usr/lib/gconv/IBM1160.so #usr/lib/gconv/IBM1161.so #usr/lib/gconv/IBM1162.so #usr/lib/gconv/IBM1163.so #usr/lib/gconv/IBM1164.so +#usr/lib/gconv/IBM1166.so +#usr/lib/gconv/IBM1167.so +#usr/lib/gconv/IBM12712.so +#usr/lib/gconv/IBM1364.so +#usr/lib/gconv/IBM1371.so +#usr/lib/gconv/IBM1388.so +#usr/lib/gconv/IBM1390.so +#usr/lib/gconv/IBM1399.so +#usr/lib/gconv/IBM16804.so #usr/lib/gconv/IBM256.so #usr/lib/gconv/IBM273.so #usr/lib/gconv/IBM274.so @@ -562,7 +611,13 @@ usr/bin/ldd #usr/lib/gconv/IBM423.so #usr/lib/gconv/IBM424.so #usr/lib/gconv/IBM437.so +#usr/lib/gconv/IBM4517.so +#usr/lib/gconv/IBM4899.so +#usr/lib/gconv/IBM4909.so +#usr/lib/gconv/IBM4971.so #usr/lib/gconv/IBM500.so +#usr/lib/gconv/IBM5347.so +#usr/lib/gconv/IBM803.so #usr/lib/gconv/IBM850.so #usr/lib/gconv/IBM851.so #usr/lib/gconv/IBM852.so @@ -585,10 +640,15 @@ usr/bin/ldd #usr/lib/gconv/IBM875.so #usr/lib/gconv/IBM880.so #usr/lib/gconv/IBM891.so +#usr/lib/gconv/IBM901.so +#usr/lib/gconv/IBM902.so #usr/lib/gconv/IBM903.so +#usr/lib/gconv/IBM9030.so #usr/lib/gconv/IBM904.so #usr/lib/gconv/IBM905.so +#usr/lib/gconv/IBM9066.so #usr/lib/gconv/IBM918.so +#usr/lib/gconv/IBM921.so #usr/lib/gconv/IBM922.so #usr/lib/gconv/IBM930.so #usr/lib/gconv/IBM932.so @@ -597,6 +657,7 @@ usr/bin/ldd #usr/lib/gconv/IBM937.so #usr/lib/gconv/IBM939.so #usr/lib/gconv/IBM943.so +#usr/lib/gconv/IBM9448.so #usr/lib/gconv/IEC_P27-1.so #usr/lib/gconv/INIS-8.so #usr/lib/gconv/INIS-CYRILLIC.so @@ -626,6 +687,7 @@ usr/bin/ldd #usr/lib/gconv/ISO8859-8.so #usr/lib/gconv/ISO8859-9.so #usr/lib/gconv/ISO_10367-BOX.so +#usr/lib/gconv/ISO_11548-1.so #usr/lib/gconv/ISO_2033.so #usr/lib/gconv/ISO_5427-EXT.so #usr/lib/gconv/ISO_5427.so @@ -643,6 +705,7 @@ usr/bin/ldd #usr/lib/gconv/MAC-SAMI.so #usr/lib/gconv/MAC-UK.so #usr/lib/gconv/MACINTOSH.so +#usr/lib/gconv/MIK.so #usr/lib/gconv/NATS-DANO.so #usr/lib/gconv/NATS-SEFI.so #usr/lib/gconv/PT154.so @@ -713,7 +776,6 @@ usr/bin/ldd usr/lib/locale/locale-archive #usr/sbin/iconvconfig #usr/sbin/nscd -#usr/sbin/nscd_nischeck #usr/sbin/rpcinfo #usr/sbin/zdump #usr/sbin/zic @@ -868,6 +930,7 @@ usr/lib/locale/locale-archive #usr/share/i18n/charmaps/ISO-IR-90.gz #usr/share/i18n/charmaps/ISO_10367-BOX.gz #usr/share/i18n/charmaps/ISO_10646.gz +#usr/share/i18n/charmaps/ISO_11548-1.gz #usr/share/i18n/charmaps/ISO_2033-1983.gz #usr/share/i18n/charmaps/ISO_5427-EXT.gz #usr/share/i18n/charmaps/ISO_5427.gz @@ -905,6 +968,7 @@ usr/lib/locale/locale-archive #usr/share/i18n/charmaps/MAC-SAMI.gz #usr/share/i18n/charmaps/MAC-UK.gz #usr/share/i18n/charmaps/MACINTOSH.gz +#usr/share/i18n/charmaps/MIK.gz #usr/share/i18n/charmaps/MSZ_7795.3.gz #usr/share/i18n/charmaps/NATS-DANO-ADD.gz #usr/share/i18n/charmaps/NATS-DANO.gz @@ -963,8 +1027,10 @@ usr/lib/locale/locale-archive #usr/share/i18n/locales/ar_SY #usr/share/i18n/locales/ar_TN #usr/share/i18n/locales/ar_YE +#usr/share/i18n/locales/as_IN #usr/share/i18n/locales/az_AZ #usr/share/i18n/locales/be_BY +#usr/share/i18n/locales/be_BY@latin #usr/share/i18n/locales/bg_BG #usr/share/i18n/locales/bn_BD #usr/share/i18n/locales/bn_IN @@ -972,9 +1038,13 @@ usr/lib/locale/locale-archive #usr/share/i18n/locales/br_FR@euro #usr/share/i18n/locales/bs_BA #usr/share/i18n/locales/byn_ER +#usr/share/i18n/locales/ca_AD #usr/share/i18n/locales/ca_ES #usr/share/i18n/locales/ca_ES@euro +#usr/share/i18n/locales/ca_FR +#usr/share/i18n/locales/ca_IT #usr/share/i18n/locales/cs_CZ +#usr/share/i18n/locales/csb_PL #usr/share/i18n/locales/cy_GB #usr/share/i18n/locales/da_DK #usr/share/i18n/locales/de_AT @@ -986,6 +1056,8 @@ usr/lib/locale/locale-archive #usr/share/i18n/locales/de_DE@euro #usr/share/i18n/locales/de_LU #usr/share/i18n/locales/de_LU@euro +#usr/share/i18n/locales/dz_BT +#usr/share/i18n/locales/el_CY #usr/share/i18n/locales/el_GR #usr/share/i18n/locales/el_GR@euro #usr/share/i18n/locales/en_AU @@ -1039,6 +1111,7 @@ usr/lib/locale/locale-archive #usr/share/i18n/locales/fr_FR@euro #usr/share/i18n/locales/fr_LU #usr/share/i18n/locales/fr_LU@euro +#usr/share/i18n/locales/fy_NL #usr/share/i18n/locales/ga_IE #usr/share/i18n/locales/ga_IE@euro #usr/share/i18n/locales/gd_GB @@ -1053,6 +1126,7 @@ usr/lib/locale/locale-archive #usr/share/i18n/locales/he_IL #usr/share/i18n/locales/hi_IN #usr/share/i18n/locales/hr_HR +#usr/share/i18n/locales/hsb_DE #usr/share/i18n/locales/hu_HU #usr/share/i18n/locales/hy_AM #usr/share/i18n/locales/i18n @@ -1067,13 +1141,17 @@ usr/lib/locale/locale-archive #usr/share/i18n/locales/ka_GE #usr/share/i18n/locales/kk_KZ #usr/share/i18n/locales/kl_GL +#usr/share/i18n/locales/km_KH #usr/share/i18n/locales/kn_IN #usr/share/i18n/locales/ko_KR +#usr/share/i18n/locales/ku_TR #usr/share/i18n/locales/kw_GB +#usr/share/i18n/locales/ky_KG #usr/share/i18n/locales/lg_UG #usr/share/i18n/locales/lo_LA #usr/share/i18n/locales/lt_LT #usr/share/i18n/locales/lv_LV +#usr/share/i18n/locales/mg_MG #usr/share/i18n/locales/mi_NZ #usr/share/i18n/locales/mk_MK #usr/share/i18n/locales/ml_IN @@ -1088,10 +1166,14 @@ usr/lib/locale/locale-archive #usr/share/i18n/locales/nl_NL #usr/share/i18n/locales/nl_NL@euro #usr/share/i18n/locales/nn_NO +#usr/share/i18n/locales/nr_ZA +#usr/share/i18n/locales/nso_ZA #usr/share/i18n/locales/oc_FR #usr/share/i18n/locales/om_ET #usr/share/i18n/locales/om_KE +#usr/share/i18n/locales/or_IN #usr/share/i18n/locales/pa_IN +#usr/share/i18n/locales/pa_PK #usr/share/i18n/locales/pl_PL #usr/share/i18n/locales/pt_BR #usr/share/i18n/locales/pt_PT @@ -1099,7 +1181,9 @@ usr/lib/locale/locale-archive #usr/share/i18n/locales/ro_RO #usr/share/i18n/locales/ru_RU #usr/share/i18n/locales/ru_UA +#usr/share/i18n/locales/rw_RW #usr/share/i18n/locales/se_NO +#usr/share/i18n/locales/si_LK #usr/share/i18n/locales/sid_ET #usr/share/i18n/locales/sk_SK #usr/share/i18n/locales/sl_SI @@ -1109,6 +1193,8 @@ usr/lib/locale/locale-archive #usr/share/i18n/locales/so_SO #usr/share/i18n/locales/sq_AL #usr/share/i18n/locales/sr_CS +#usr/share/i18n/locales/sr_ME +#usr/share/i18n/locales/ss_ZA #usr/share/i18n/locales/st_ZA #usr/share/i18n/locales/sv_FI #usr/share/i18n/locales/sv_FI@euro @@ -1121,6 +1207,8 @@ usr/lib/locale/locale-archive #usr/share/i18n/locales/ti_ET #usr/share/i18n/locales/tig_ER #usr/share/i18n/locales/tl_PH +#usr/share/i18n/locales/tn_ZA +#usr/share/i18n/locales/tr_CY #usr/share/i18n/locales/tr_TR #usr/share/i18n/locales/translit_circle #usr/share/i18n/locales/translit_cjk_compat @@ -1134,11 +1222,13 @@ usr/lib/locale/locale-archive #usr/share/i18n/locales/translit_neutral #usr/share/i18n/locales/translit_small #usr/share/i18n/locales/translit_wide +#usr/share/i18n/locales/ts_ZA #usr/share/i18n/locales/tt_RU #usr/share/i18n/locales/uk_UA #usr/share/i18n/locales/ur_PK #usr/share/i18n/locales/uz_UZ #usr/share/i18n/locales/uz_UZ@cyrillic +#usr/share/i18n/locales/ve_ZA #usr/share/i18n/locales/vi_VN #usr/share/i18n/locales/wa_BE #usr/share/i18n/locales/wa_BE@euro @@ -1211,6 +1301,12 @@ usr/lib/locale/locale-archive #usr/share/locale/pt_BR #usr/share/locale/pt_BR/LC_MESSAGES #usr/share/locale/pt_BR/LC_MESSAGES/libc.mo +#usr/share/locale/ru +#usr/share/locale/ru/LC_MESSAGES +#usr/share/locale/ru/LC_MESSAGES/libc.mo +#usr/share/locale/rw +#usr/share/locale/rw/LC_MESSAGES +#usr/share/locale/rw/LC_MESSAGES/libc.mo #usr/share/locale/sk #usr/share/locale/sk/LC_MESSAGES #usr/share/locale/sk/LC_MESSAGES/libc.mo @@ -1350,7 +1446,9 @@ usr/lib/locale/locale-archive #usr/share/zoneinfo/America/Indiana/Indianapolis #usr/share/zoneinfo/America/Indiana/Knox #usr/share/zoneinfo/America/Indiana/Marengo +#usr/share/zoneinfo/America/Indiana/Petersburg #usr/share/zoneinfo/America/Indiana/Vevay +#usr/share/zoneinfo/America/Indiana/Vincennes #usr/share/zoneinfo/America/Indianapolis #usr/share/zoneinfo/America/Inuvik #usr/share/zoneinfo/America/Iqaluit @@ -1375,6 +1473,7 @@ usr/lib/locale/locale-archive #usr/share/zoneinfo/America/Merida #usr/share/zoneinfo/America/Mexico_City #usr/share/zoneinfo/America/Miquelon +#usr/share/zoneinfo/America/Moncton #usr/share/zoneinfo/America/Monterrey #usr/share/zoneinfo/America/Montevideo #usr/share/zoneinfo/America/Montreal @@ -1767,20 +1866,6 @@ usr/lib/locale/locale-archive #usr/share/zoneinfo/ROC #usr/share/zoneinfo/ROK #usr/share/zoneinfo/Singapore -#usr/share/zoneinfo/SystemV -#usr/share/zoneinfo/SystemV/AST4 -#usr/share/zoneinfo/SystemV/AST4ADT -#usr/share/zoneinfo/SystemV/CST6 -#usr/share/zoneinfo/SystemV/CST6CDT -#usr/share/zoneinfo/SystemV/EST5 -#usr/share/zoneinfo/SystemV/EST5EDT -#usr/share/zoneinfo/SystemV/HST10 -#usr/share/zoneinfo/SystemV/MST7 -#usr/share/zoneinfo/SystemV/MST7MDT -#usr/share/zoneinfo/SystemV/PST8 -#usr/share/zoneinfo/SystemV/PST8PDT -#usr/share/zoneinfo/SystemV/YST9 -#usr/share/zoneinfo/SystemV/YST9YDT #usr/share/zoneinfo/Turkey #usr/share/zoneinfo/UCT #usr/share/zoneinfo/US @@ -1927,7 +2012,9 @@ usr/share/zoneinfo/posix #usr/share/zoneinfo/posix/America/Indiana/Indianapolis #usr/share/zoneinfo/posix/America/Indiana/Knox #usr/share/zoneinfo/posix/America/Indiana/Marengo +#usr/share/zoneinfo/posix/America/Indiana/Petersburg #usr/share/zoneinfo/posix/America/Indiana/Vevay +#usr/share/zoneinfo/posix/America/Indiana/Vincennes #usr/share/zoneinfo/posix/America/Indianapolis #usr/share/zoneinfo/posix/America/Inuvik #usr/share/zoneinfo/posix/America/Iqaluit @@ -1952,6 +2039,7 @@ usr/share/zoneinfo/posix #usr/share/zoneinfo/posix/America/Merida #usr/share/zoneinfo/posix/America/Mexico_City #usr/share/zoneinfo/posix/America/Miquelon +#usr/share/zoneinfo/posix/America/Moncton #usr/share/zoneinfo/posix/America/Monterrey #usr/share/zoneinfo/posix/America/Montevideo #usr/share/zoneinfo/posix/America/Montreal @@ -2344,20 +2432,6 @@ usr/share/zoneinfo/posix #usr/share/zoneinfo/posix/ROC #usr/share/zoneinfo/posix/ROK #usr/share/zoneinfo/posix/Singapore -#usr/share/zoneinfo/posix/SystemV -#usr/share/zoneinfo/posix/SystemV/AST4 -#usr/share/zoneinfo/posix/SystemV/AST4ADT -#usr/share/zoneinfo/posix/SystemV/CST6 -#usr/share/zoneinfo/posix/SystemV/CST6CDT -#usr/share/zoneinfo/posix/SystemV/EST5 -#usr/share/zoneinfo/posix/SystemV/EST5EDT -#usr/share/zoneinfo/posix/SystemV/HST10 -#usr/share/zoneinfo/posix/SystemV/MST7 -#usr/share/zoneinfo/posix/SystemV/MST7MDT -#usr/share/zoneinfo/posix/SystemV/PST8 -#usr/share/zoneinfo/posix/SystemV/PST8PDT -#usr/share/zoneinfo/posix/SystemV/YST9 -#usr/share/zoneinfo/posix/SystemV/YST9YDT #usr/share/zoneinfo/posix/Turkey #usr/share/zoneinfo/posix/UCT #usr/share/zoneinfo/posix/US @@ -2504,7 +2578,9 @@ usr/share/zoneinfo/posix #usr/share/zoneinfo/right/America/Indiana/Indianapolis #usr/share/zoneinfo/right/America/Indiana/Knox #usr/share/zoneinfo/right/America/Indiana/Marengo +#usr/share/zoneinfo/right/America/Indiana/Petersburg #usr/share/zoneinfo/right/America/Indiana/Vevay +#usr/share/zoneinfo/right/America/Indiana/Vincennes #usr/share/zoneinfo/right/America/Indianapolis #usr/share/zoneinfo/right/America/Inuvik #usr/share/zoneinfo/right/America/Iqaluit @@ -2529,6 +2605,7 @@ usr/share/zoneinfo/posix #usr/share/zoneinfo/right/America/Merida #usr/share/zoneinfo/right/America/Mexico_City #usr/share/zoneinfo/right/America/Miquelon +#usr/share/zoneinfo/right/America/Moncton #usr/share/zoneinfo/right/America/Monterrey #usr/share/zoneinfo/right/America/Montevideo #usr/share/zoneinfo/right/America/Montreal @@ -2921,20 +2998,6 @@ usr/share/zoneinfo/posix #usr/share/zoneinfo/right/ROC #usr/share/zoneinfo/right/ROK #usr/share/zoneinfo/right/Singapore -#usr/share/zoneinfo/right/SystemV -#usr/share/zoneinfo/right/SystemV/AST4 -#usr/share/zoneinfo/right/SystemV/AST4ADT -#usr/share/zoneinfo/right/SystemV/CST6 -#usr/share/zoneinfo/right/SystemV/CST6CDT -#usr/share/zoneinfo/right/SystemV/EST5 -#usr/share/zoneinfo/right/SystemV/EST5EDT -#usr/share/zoneinfo/right/SystemV/HST10 -#usr/share/zoneinfo/right/SystemV/MST7 -#usr/share/zoneinfo/right/SystemV/MST7MDT -#usr/share/zoneinfo/right/SystemV/PST8 -#usr/share/zoneinfo/right/SystemV/PST8PDT -#usr/share/zoneinfo/right/SystemV/YST9 -#usr/share/zoneinfo/right/SystemV/YST9YDT #usr/share/zoneinfo/right/Turkey #usr/share/zoneinfo/right/UCT #usr/share/zoneinfo/right/US diff --git a/config/rootfiles/common/linux-libc-header b/config/rootfiles/common/linux-libc-header index 4fbe3e0..dac70a6 100644 --- a/config/rootfiles/common/linux-libc-header +++ b/config/rootfiles/common/linux-libc-header @@ -1,196 +1,122 @@ #usr/include/asm -#usr/include/asm/8253pit.h +#usr/include/asm-generic +#usr/include/asm-generic/auxvec.h +#usr/include/asm-generic/bitsperlong.h +#usr/include/asm-generic/errno-base.h +#usr/include/asm-generic/errno.h +#usr/include/asm-generic/fcntl.h +#usr/include/asm-generic/int-l64.h +#usr/include/asm-generic/int-ll64.h +#usr/include/asm-generic/ioctl.h +#usr/include/asm-generic/ioctls.h +#usr/include/asm-generic/ipcbuf.h +#usr/include/asm-generic/mman-common.h +#usr/include/asm-generic/mman.h +#usr/include/asm-generic/msgbuf.h +#usr/include/asm-generic/param.h +#usr/include/asm-generic/poll.h +#usr/include/asm-generic/posix_types.h +#usr/include/asm-generic/resource.h +#usr/include/asm-generic/sembuf.h +#usr/include/asm-generic/setup.h +#usr/include/asm-generic/shmbuf.h +#usr/include/asm-generic/shmparam.h +#usr/include/asm-generic/siginfo.h +#usr/include/asm-generic/signal-defs.h +#usr/include/asm-generic/signal.h +#usr/include/asm-generic/socket.h +#usr/include/asm-generic/sockios.h +#usr/include/asm-generic/stat.h +#usr/include/asm-generic/statfs.h +#usr/include/asm-generic/swab.h +#usr/include/asm-generic/termbits.h +#usr/include/asm-generic/termios.h +#usr/include/asm-generic/types.h +#usr/include/asm-generic/ucontext.h +#usr/include/asm-generic/unistd.h #usr/include/asm/a.out.h -#usr/include/asm/agp.h -#usr/include/asm/apic.h -#usr/include/asm/apicdef.h -#usr/include/asm/arch_hooks.h -#usr/include/asm/atomic.h -#usr/include/asm/bitops.h +#usr/include/asm/auxvec.h +#usr/include/asm/bitsperlong.h #usr/include/asm/boot.h +#usr/include/asm/bootparam.h #usr/include/asm/byteorder.h -#usr/include/asm/cache.h -#usr/include/asm/cacheflush.h -#usr/include/asm/checksum.h -#usr/include/asm/cpu.h -#usr/include/asm/cpufeature.h #usr/include/asm/debugreg.h -#usr/include/asm/desc.h -#usr/include/asm/dma.h #usr/include/asm/e820.h -#usr/include/asm/elf.h #usr/include/asm/errno.h #usr/include/asm/fcntl.h -#usr/include/asm/fixmap.h -#usr/include/asm/floppy.h -#usr/include/asm/genapic.h -#usr/include/asm/hardirq.h -#usr/include/asm/hdreg.h -#usr/include/asm/hw_irq.h -#usr/include/asm/i8259.h -#usr/include/asm/init.h -#usr/include/asm/io.h -#usr/include/asm/io_apic.h #usr/include/asm/ioctl.h #usr/include/asm/ioctls.h -#usr/include/asm/ipc.h #usr/include/asm/ipcbuf.h -#usr/include/asm/irq.h -#usr/include/asm/kdebug.h -#usr/include/asm/kprobes.h +#usr/include/asm/ist.h +#usr/include/asm/kvm.h +#usr/include/asm/kvm_para.h #usr/include/asm/ldt.h -#usr/include/asm/linkage.h -#usr/include/asm/mach-bigsmp -#usr/include/asm/mach-bigsmp/mach_apic.h -#usr/include/asm/mach-bigsmp/mach_apicdef.h -#usr/include/asm/mach-bigsmp/mach_ipi.h -#usr/include/asm/mach-bigsmp/mach_mpspec.h -#usr/include/asm/mach-default -#usr/include/asm/mach-default/apm.h -#usr/include/asm/mach-default/bios_ebda.h -#usr/include/asm/mach-default/do_timer.h -#usr/include/asm/mach-default/entry_arch.h -#usr/include/asm/mach-default/io_ports.h -#usr/include/asm/mach-default/irq_vectors.h -#usr/include/asm/mach-default/mach_apic.h -#usr/include/asm/mach-default/mach_apicdef.h -#usr/include/asm/mach-default/mach_ipi.h -#usr/include/asm/mach-default/mach_mpparse.h -#usr/include/asm/mach-default/mach_mpspec.h -#usr/include/asm/mach-default/mach_reboot.h -#usr/include/asm/mach-default/mach_time.h -#usr/include/asm/mach-default/mach_timer.h -#usr/include/asm/mach-default/mach_traps.h -#usr/include/asm/mach-default/mach_wakecpu.h -#usr/include/asm/mach-default/pci-functions.h -#usr/include/asm/mach-default/setup_arch_post.h -#usr/include/asm/mach-default/setup_arch_pre.h -#usr/include/asm/mach-default/smpboot_hooks.h -#usr/include/asm/mach-es7000 -#usr/include/asm/mach-es7000/mach_apic.h -#usr/include/asm/mach-es7000/mach_apicdef.h -#usr/include/asm/mach-es7000/mach_ipi.h -#usr/include/asm/mach-es7000/mach_mpparse.h -#usr/include/asm/mach-es7000/mach_mpspec.h -#usr/include/asm/mach-es7000/mach_wakecpu.h -#usr/include/asm/mach-generic -#usr/include/asm/mach-generic/mach_apic.h -#usr/include/asm/mach-generic/mach_apicdef.h -#usr/include/asm/mach-generic/mach_ipi.h -#usr/include/asm/mach-generic/mach_mpparse.h -#usr/include/asm/mach-generic/mach_mpspec.h -#usr/include/asm/mach-numaq -#usr/include/asm/mach-numaq/mach_apic.h -#usr/include/asm/mach-numaq/mach_apicdef.h -#usr/include/asm/mach-numaq/mach_ipi.h -#usr/include/asm/mach-numaq/mach_mpparse.h -#usr/include/asm/mach-numaq/mach_mpspec.h -#usr/include/asm/mach-numaq/mach_wakecpu.h -#usr/include/asm/mach-summit -#usr/include/asm/mach-summit/mach_apic.h -#usr/include/asm/mach-summit/mach_apicdef.h -#usr/include/asm/mach-summit/mach_ipi.h -#usr/include/asm/mach-summit/mach_mpparse.h -#usr/include/asm/mach-summit/mach_mpspec.h -#usr/include/asm/mach-visws -#usr/include/asm/mach-visws/cobalt.h -#usr/include/asm/mach-visws/do_timer.h -#usr/include/asm/mach-visws/entry_arch.h -#usr/include/asm/mach-visws/irq_vectors.h -#usr/include/asm/mach-visws/lithium.h -#usr/include/asm/mach-visws/mach_apic.h -#usr/include/asm/mach-visws/mach_apicdef.h -#usr/include/asm/mach-visws/piix4.h -#usr/include/asm/mach-visws/setup_arch_post.h -#usr/include/asm/mach-visws/setup_arch_pre.h -#usr/include/asm/mach-visws/smpboot_hooks.h -#usr/include/asm/mach-voyager -#usr/include/asm/mach-voyager/do_timer.h -#usr/include/asm/mach-voyager/entry_arch.h -#usr/include/asm/mach-voyager/irq_vectors.h -#usr/include/asm/mach-voyager/setup_arch_post.h -#usr/include/asm/mach-voyager/setup_arch_pre.h -#usr/include/asm/math_emu.h -#usr/include/asm/mca.h -#usr/include/asm/mca_dma.h +#usr/include/asm/mce.h #usr/include/asm/mman.h -#usr/include/asm/mmu.h -#usr/include/asm/mmu_context.h -#usr/include/asm/mmx.h -#usr/include/asm/module.h -#usr/include/asm/mpspec.h -#usr/include/asm/mpspec_def.h #usr/include/asm/msgbuf.h +#usr/include/asm/msr-index.h #usr/include/asm/msr.h #usr/include/asm/mtrr.h -#usr/include/asm/namei.h -#usr/include/asm/nmi.h -#usr/include/asm/node.h -#usr/include/asm/numaq.h -#usr/include/asm/numnodes.h -#usr/include/asm/page.h #usr/include/asm/param.h -#usr/include/asm/parport.h -#usr/include/asm/pgalloc.h #usr/include/asm/poll.h #usr/include/asm/posix_types.h -#usr/include/asm/processor.h +#usr/include/asm/posix_types_32.h +#usr/include/asm/posix_types_64.h +#usr/include/asm/prctl.h +#usr/include/asm/processor-flags.h +#usr/include/asm/ptrace-abi.h #usr/include/asm/ptrace.h -#usr/include/asm/rwlock.h -#usr/include/asm/segment.h -#usr/include/asm/semaphore.h +#usr/include/asm/resource.h #usr/include/asm/sembuf.h -#usr/include/asm/serial.h +#usr/include/asm/setup.h #usr/include/asm/shmbuf.h -#usr/include/asm/shmparam.h #usr/include/asm/sigcontext.h +#usr/include/asm/sigcontext32.h #usr/include/asm/siginfo.h +#usr/include/asm/signal.h #usr/include/asm/socket.h #usr/include/asm/sockios.h -#usr/include/asm/spinlock.h -#usr/include/asm/srat.h #usr/include/asm/stat.h -#usr/include/asm/suspend.h -#usr/include/asm/system.h +#usr/include/asm/statfs.h +#usr/include/asm/swab.h #usr/include/asm/termbits.h #usr/include/asm/termios.h -#usr/include/asm/timer.h -#usr/include/asm/timex.h -#usr/include/asm/tlbflush.h #usr/include/asm/types.h #usr/include/asm/ucontext.h -#usr/include/asm/unaligned.h #usr/include/asm/unistd.h -#usr/include/asm/user.h -#usr/include/asm/vga.h -#usr/include/asm/vic.h +#usr/include/asm/unistd_32.h +#usr/include/asm/unistd_64.h #usr/include/asm/vm86.h -#usr/include/asm/voyager.h +#usr/include/asm/vsyscall.h +#usr/include/drm +#usr/include/drm/drm.h +#usr/include/drm/drm_mode.h +#usr/include/drm/drm_sarea.h +#usr/include/drm/i810_drm.h +#usr/include/drm/i830_drm.h +#usr/include/drm/i915_drm.h +#usr/include/drm/mga_drm.h +#usr/include/drm/r128_drm.h +#usr/include/drm/radeon_drm.h +#usr/include/drm/savage_drm.h +#usr/include/drm/sis_drm.h +#usr/include/drm/via_drm.h #usr/include/linux -#usr/include/linux/8250_pci.h #usr/include/linux/a.out.h #usr/include/linux/acct.h -#usr/include/linux/acpi.h #usr/include/linux/adb.h #usr/include/linux/adfs_fs.h -#usr/include/linux/adfs_fs_sb.h -#usr/include/linux/affs_fs.h #usr/include/linux/affs_hardblocks.h #usr/include/linux/agpgart.h -#usr/include/linux/aio.h #usr/include/linux/aio_abi.h -#usr/include/linux/amifd.h -#usr/include/linux/amifdreg.h -#usr/include/linux/amigaffs.h #usr/include/linux/apm_bios.h -#usr/include/linux/ata.h +#usr/include/linux/arcfb.h #usr/include/linux/atalk.h #usr/include/linux/atm.h #usr/include/linux/atm_eni.h #usr/include/linux/atm_he.h #usr/include/linux/atm_idt77105.h #usr/include/linux/atm_nicstar.h -#usr/include/linux/atm_suni.h #usr/include/linux/atm_tcp.h #usr/include/linux/atm_zatm.h #usr/include/linux/atmapi.h @@ -207,77 +133,55 @@ #usr/include/linux/audit.h #usr/include/linux/auto_fs.h #usr/include/linux/auto_fs4.h -#usr/include/linux/autoconf.h -#usr/include/linux/awe_voice.h +#usr/include/linux/auxvec.h #usr/include/linux/ax25.h #usr/include/linux/b1lli.h -#usr/include/linux/backing-dev.h -#usr/include/linux/backlight.h #usr/include/linux/baycom.h -#usr/include/linux/bcd.h #usr/include/linux/bfs_fs.h #usr/include/linux/binfmts.h -#usr/include/linux/bitmap.h -#usr/include/linux/bitops.h #usr/include/linux/blkpg.h -#usr/include/linux/blockgroup_lock.h -#usr/include/linux/bootmem.h +#usr/include/linux/blktrace_api.h #usr/include/linux/bpqether.h +#usr/include/linux/bsg.h #usr/include/linux/byteorder #usr/include/linux/byteorder/big_endian.h -#usr/include/linux/byteorder/generic.h #usr/include/linux/byteorder/little_endian.h -#usr/include/linux/byteorder/pdp_endian.h -#usr/include/linux/byteorder/swab.h -#usr/include/linux/byteorder/swabb.h -#usr/include/linux/cache.h +#usr/include/linux/can +#usr/include/linux/can.h +#usr/include/linux/can/bcm.h +#usr/include/linux/can/error.h +#usr/include/linux/can/netlink.h +#usr/include/linux/can/raw.h #usr/include/linux/capability.h #usr/include/linux/capi.h #usr/include/linux/cciss_ioctl.h -#usr/include/linux/cd1400.h #usr/include/linux/cdk.h #usr/include/linux/cdrom.h -#usr/include/linux/circ_buf.h -#usr/include/linux/cobalt-nvram.h +#usr/include/linux/cgroupstats.h +#usr/include/linux/chio.h +#usr/include/linux/cm4000_cs.h +#usr/include/linux/cn_proc.h #usr/include/linux/coda.h -#usr/include/linux/coda_proc.h #usr/include/linux/coda_psdev.h #usr/include/linux/coff.h -#usr/include/linux/com20020.h -#usr/include/linux/compat.h -#usr/include/linux/compat_ioctl.h -#usr/include/linux/compiler.h #usr/include/linux/comstats.h -#usr/include/linux/config.h -#usr/include/linux/console.h -#usr/include/linux/console_struct.h -#usr/include/linux/consolemap.h -#usr/include/linux/cpu.h -#usr/include/linux/cpufreq.h +#usr/include/linux/connector.h +#usr/include/linux/const.h #usr/include/linux/cramfs_fs.h -#usr/include/linux/cramfs_fs_sb.h -#usr/include/linux/crc32.h -#usr/include/linux/crypto.h -#usr/include/linux/ctype.h #usr/include/linux/cuda.h #usr/include/linux/cyclades.h #usr/include/linux/cycx_cfm.h -#usr/include/linux/cycx_drv.h -#usr/include/linux/cycx_x25.h -#usr/include/linux/devfs_fs.h -#usr/include/linux/devfs_fs_kernel.h -#usr/include/linux/device-mapper.h -#usr/include/linux/device.h -#usr/include/linux/devpts_fs.h -#usr/include/linux/dirent.h -#usr/include/linux/divert.h +#usr/include/linux/dcbnl.h +#usr/include/linux/dccp.h +#usr/include/linux/dlm.h +#usr/include/linux/dlm_device.h +#usr/include/linux/dlm_netlink.h +#usr/include/linux/dlm_plock.h +#usr/include/linux/dlmconstants.h #usr/include/linux/dm-ioctl.h +#usr/include/linux/dm-log-userspace.h #usr/include/linux/dn.h -#usr/include/linux/dnotify.h -#usr/include/linux/dqblk_v1.h -#usr/include/linux/dqblk_v2.h #usr/include/linux/dqblk_xfs.h -#usr/include/linux/dtlk.h #usr/include/linux/dvb #usr/include/linux/dvb/audio.h #usr/include/linux/dvb/ca.h @@ -287,79 +191,58 @@ #usr/include/linux/dvb/osd.h #usr/include/linux/dvb/version.h #usr/include/linux/dvb/video.h -#usr/include/linux/eeprom.h -#usr/include/linux/efi.h -#usr/include/linux/efs_dir.h -#usr/include/linux/efs_fs.h -#usr/include/linux/efs_fs_i.h +#usr/include/linux/edd.h #usr/include/linux/efs_fs_sb.h -#usr/include/linux/efs_vh.h -#usr/include/linux/eisa.h -#usr/include/linux/elevator.h +#usr/include/linux/elf-em.h #usr/include/linux/elf-fdpic.h #usr/include/linux/elf.h #usr/include/linux/elfcore.h -#usr/include/linux/err.h -#usr/include/linux/err_kernel_only.h #usr/include/linux/errno.h #usr/include/linux/errqueue.h #usr/include/linux/ethtool.h #usr/include/linux/eventpoll.h #usr/include/linux/ext2_fs.h -#usr/include/linux/ext3_fs.h -#usr/include/linux/ext3_jbd.h #usr/include/linux/fadvise.h +#usr/include/linux/falloc.h #usr/include/linux/fb.h #usr/include/linux/fcntl.h #usr/include/linux/fd.h -#usr/include/linux/fd1772.h #usr/include/linux/fdreg.h -#usr/include/linux/file.h +#usr/include/linux/fib_rules.h +#usr/include/linux/fiemap.h #usr/include/linux/filter.h -#usr/include/linux/firmware.h +#usr/include/linux/firewire-cdev.h +#usr/include/linux/firewire-constants.h #usr/include/linux/flat.h -#usr/include/linux/font.h #usr/include/linux/fs.h -#usr/include/linux/fs_struct.h -#usr/include/linux/ftape-header-segment.h -#usr/include/linux/ftape-vendors.h -#usr/include/linux/ftape.h +#usr/include/linux/fuse.h #usr/include/linux/futex.h #usr/include/linux/gameport.h #usr/include/linux/gen_stats.h #usr/include/linux/generic_serial.h -#usr/include/linux/genhd.h -#usr/include/linux/gfp.h -#usr/include/linux/hash.h +#usr/include/linux/genetlink.h +#usr/include/linux/gfs2_ondisk.h +#usr/include/linux/gigaset_dev.h #usr/include/linux/hayesesp.h #usr/include/linux/hdlc #usr/include/linux/hdlc.h #usr/include/linux/hdlc/ioctl.h #usr/include/linux/hdlcdrv.h #usr/include/linux/hdreg.h -#usr/include/linux/hdsmart.h +#usr/include/linux/hid.h #usr/include/linux/hiddev.h -#usr/include/linux/highuid.h -#usr/include/linux/hpfs_fs.h +#usr/include/linux/hidraw.h +#usr/include/linux/hpet.h #usr/include/linux/hysdn_if.h -#usr/include/linux/i2c-algo-bit.h -#usr/include/linux/i2c-algo-ite.h -#usr/include/linux/i2c-algo-pcf.h -#usr/include/linux/i2c-algo-sgi.h -#usr/include/linux/i2c-algo-sibyte.h #usr/include/linux/i2c-dev.h -#usr/include/linux/i2c-id.h -#usr/include/linux/i2c-sensor.h -#usr/include/linux/i2c-vid.h #usr/include/linux/i2c.h #usr/include/linux/i2o-dev.h #usr/include/linux/i8k.h -#usr/include/linux/ibmtr.h #usr/include/linux/icmp.h #usr/include/linux/icmpv6.h -#usr/include/linux/ide.h -#usr/include/linux/idr.h #usr/include/linux/if.h +#usr/include/linux/if_addr.h +#usr/include/linux/if_addrlabel.h #usr/include/linux/if_arcnet.h #usr/include/linux/if_arp.h #usr/include/linux/if_bonding.h @@ -373,154 +256,150 @@ #usr/include/linux/if_frad.h #usr/include/linux/if_hippi.h #usr/include/linux/if_infiniband.h +#usr/include/linux/if_link.h #usr/include/linux/if_ltalk.h #usr/include/linux/if_packet.h +#usr/include/linux/if_phonet.h #usr/include/linux/if_plip.h #usr/include/linux/if_ppp.h +#usr/include/linux/if_pppol2tp.h #usr/include/linux/if_pppox.h -#usr/include/linux/if_shaper.h #usr/include/linux/if_slip.h #usr/include/linux/if_strip.h #usr/include/linux/if_tr.h #usr/include/linux/if_tun.h #usr/include/linux/if_tunnel.h #usr/include/linux/if_vlan.h -#usr/include/linux/if_wanpipe.h -#usr/include/linux/if_wanpipe_common.h #usr/include/linux/igmp.h #usr/include/linux/in.h #usr/include/linux/in6.h #usr/include/linux/in_route.h -#usr/include/linux/inetdevice.h -#usr/include/linux/init.h -#usr/include/linux/init_task.h -#usr/include/linux/initrd.h +#usr/include/linux/inet_diag.h #usr/include/linux/inotify.h #usr/include/linux/input.h -#usr/include/linux/interrupt.h #usr/include/linux/ioctl.h -#usr/include/linux/ioctl32.h -#usr/include/linux/ioport.h #usr/include/linux/ip.h #usr/include/linux/ip6_tunnel.h -#usr/include/linux/ip_mp_alg.h +#usr/include/linux/ip_vs.h #usr/include/linux/ipc.h #usr/include/linux/ipmi.h #usr/include/linux/ipmi_msgdefs.h -#usr/include/linux/ipmi_smi.h #usr/include/linux/ipsec.h #usr/include/linux/ipv6.h #usr/include/linux/ipv6_route.h #usr/include/linux/ipx.h #usr/include/linux/irda.h -#usr/include/linux/irq.h -#usr/include/linux/irq_cpustat.h -#usr/include/linux/isapnp.h +#usr/include/linux/irqnr.h #usr/include/linux/isdn #usr/include/linux/isdn.h #usr/include/linux/isdn/capicmd.h -#usr/include/linux/isdn/capilli.h -#usr/include/linux/isdn/capiutil.h -#usr/include/linux/isdn/tpam.h #usr/include/linux/isdn_divertif.h #usr/include/linux/isdn_ppp.h #usr/include/linux/isdnif.h -#usr/include/linux/isicom.h #usr/include/linux/iso_fs.h -#usr/include/linux/istallion.h -#usr/include/linux/ite_gpio.h +#usr/include/linux/ivtv.h +#usr/include/linux/ivtvfb.h #usr/include/linux/ixjuser.h -#usr/include/linux/jbd.h -#usr/include/linux/jffs.h #usr/include/linux/jffs2.h -#usr/include/linux/jffs2_fs_sb.h -#usr/include/linux/jhash.h -#usr/include/linux/jiffies.h -#usr/include/linux/journal-head.h #usr/include/linux/joystick.h -#usr/include/linux/kallsyms.h -#usr/include/linux/kbd_diacr.h -#usr/include/linux/kbd_kern.h #usr/include/linux/kd.h #usr/include/linux/kdev_t.h #usr/include/linux/kernel.h -#usr/include/linux/kernel_stat.h #usr/include/linux/kernelcapi.h #usr/include/linux/keyboard.h #usr/include/linux/keyctl.h -#usr/include/linux/kmalloc_sizes.h -#usr/include/linux/kmod.h -#usr/include/linux/kprobes.h -#usr/include/linux/lapb.h -#usr/include/linux/lcd.h -#usr/include/linux/libata.h -#usr/include/linux/libps2.h +#usr/include/linux/kvm.h +#usr/include/linux/kvm_para.h #usr/include/linux/limits.h -#usr/include/linux/linkage.h -#usr/include/linux/linux_logo.h -#usr/include/linux/list.h #usr/include/linux/llc.h -#usr/include/linux/lockd -#usr/include/linux/lockd/bind.h -#usr/include/linux/lockd/debug.h -#usr/include/linux/lockd/nlm.h -#usr/include/linux/lockd/share.h -#usr/include/linux/lockd/sm_inter.h -#usr/include/linux/lockd/xdr.h -#usr/include/linux/lockd/xdr4.h #usr/include/linux/loop.h #usr/include/linux/lp.h +#usr/include/linux/magic.h #usr/include/linux/major.h +#usr/include/linux/map_to_7segment.h #usr/include/linux/matroxfb.h -#usr/include/linux/mbcache.h -#usr/include/linux/mc6821.h -#usr/include/linux/mca-legacy.h -#usr/include/linux/mca.h -#usr/include/linux/mempool.h +#usr/include/linux/mempolicy.h #usr/include/linux/meye.h #usr/include/linux/mii.h #usr/include/linux/minix_fs.h -#usr/include/linux/miscdevice.h -#usr/include/linux/mm.h -#usr/include/linux/mm_inline.h #usr/include/linux/mman.h -#usr/include/linux/mod_devicetable.h -#usr/include/linux/module.h -#usr/include/linux/moduleloader.h -#usr/include/linux/moduleparam.h -#usr/include/linux/mount.h +#usr/include/linux/mmtimer.h +#usr/include/linux/mqueue.h #usr/include/linux/mroute.h +#usr/include/linux/mroute6.h #usr/include/linux/msdos_fs.h #usr/include/linux/msg.h -#usr/include/linux/mtd -#usr/include/linux/mtd/blktrans.h -#usr/include/linux/mtd/cfi.h -#usr/include/linux/mtd/cfi_endian.h -#usr/include/linux/mtd/compatmac.h -#usr/include/linux/mtd/concat.h -#usr/include/linux/mtd/doc2000.h -#usr/include/linux/mtd/flashchip.h -#usr/include/linux/mtd/ftl.h -#usr/include/linux/mtd/gen_probe.h -#usr/include/linux/mtd/iflash.h -#usr/include/linux/mtd/jedec.h -#usr/include/linux/mtd/map.h -#usr/include/linux/mtd/nand.h -#usr/include/linux/mtd/nand_ecc.h -#usr/include/linux/mtd/nftl.h -#usr/include/linux/mtd/partitions.h -#usr/include/linux/mtd/pmc551.h #usr/include/linux/mtio.h #usr/include/linux/n_r3964.h -#usr/include/linux/namei.h #usr/include/linux/nbd.h #usr/include/linux/ncp.h #usr/include/linux/ncp_fs.h #usr/include/linux/ncp_mount.h #usr/include/linux/ncp_no.h +#usr/include/linux/neighbour.h #usr/include/linux/net.h +#usr/include/linux/net_dropmon.h #usr/include/linux/netdevice.h +#usr/include/linux/netfilter #usr/include/linux/netfilter.h +#usr/include/linux/netfilter/nf_conntrack_common.h +#usr/include/linux/netfilter/nf_conntrack_ftp.h +#usr/include/linux/netfilter/nf_conntrack_sctp.h +#usr/include/linux/netfilter/nf_conntrack_tcp.h +#usr/include/linux/netfilter/nf_conntrack_tuple_common.h +#usr/include/linux/netfilter/nfnetlink.h +#usr/include/linux/netfilter/nfnetlink_compat.h +#usr/include/linux/netfilter/nfnetlink_conntrack.h +#usr/include/linux/netfilter/nfnetlink_log.h +#usr/include/linux/netfilter/nfnetlink_queue.h +#usr/include/linux/netfilter/x_tables.h +#usr/include/linux/netfilter/xt_CLASSIFY.h +#usr/include/linux/netfilter/xt_CONNMARK.h +#usr/include/linux/netfilter/xt_CONNSECMARK.h +#usr/include/linux/netfilter/xt_DSCP.h +#usr/include/linux/netfilter/xt_LED.h +#usr/include/linux/netfilter/xt_MARK.h +#usr/include/linux/netfilter/xt_NFLOG.h +#usr/include/linux/netfilter/xt_NFQUEUE.h +#usr/include/linux/netfilter/xt_RATEEST.h +#usr/include/linux/netfilter/xt_SECMARK.h +#usr/include/linux/netfilter/xt_TCPMSS.h +#usr/include/linux/netfilter/xt_TCPOPTSTRIP.h +#usr/include/linux/netfilter/xt_TPROXY.h +#usr/include/linux/netfilter/xt_cluster.h +#usr/include/linux/netfilter/xt_comment.h +#usr/include/linux/netfilter/xt_connbytes.h +#usr/include/linux/netfilter/xt_connlimit.h +#usr/include/linux/netfilter/xt_connmark.h +#usr/include/linux/netfilter/xt_conntrack.h +#usr/include/linux/netfilter/xt_dccp.h +#usr/include/linux/netfilter/xt_dscp.h +#usr/include/linux/netfilter/xt_esp.h +#usr/include/linux/netfilter/xt_hashlimit.h +#usr/include/linux/netfilter/xt_helper.h +#usr/include/linux/netfilter/xt_iprange.h +#usr/include/linux/netfilter/xt_length.h +#usr/include/linux/netfilter/xt_limit.h +#usr/include/linux/netfilter/xt_mac.h +#usr/include/linux/netfilter/xt_mark.h +#usr/include/linux/netfilter/xt_multiport.h +#usr/include/linux/netfilter/xt_osf.h +#usr/include/linux/netfilter/xt_owner.h +#usr/include/linux/netfilter/xt_physdev.h +#usr/include/linux/netfilter/xt_pkttype.h +#usr/include/linux/netfilter/xt_policy.h +#usr/include/linux/netfilter/xt_quota.h +#usr/include/linux/netfilter/xt_rateest.h +#usr/include/linux/netfilter/xt_realm.h +#usr/include/linux/netfilter/xt_recent.h +#usr/include/linux/netfilter/xt_sctp.h +#usr/include/linux/netfilter/xt_state.h +#usr/include/linux/netfilter/xt_statistic.h +#usr/include/linux/netfilter/xt_string.h +#usr/include/linux/netfilter/xt_tcpmss.h +#usr/include/linux/netfilter/xt_tcpudp.h +#usr/include/linux/netfilter/xt_time.h +#usr/include/linux/netfilter/xt_u32.h #usr/include/linux/netfilter_arp #usr/include/linux/netfilter_arp.h #usr/include/linux/netfilter_arp/arp_tables.h @@ -546,83 +425,32 @@ #usr/include/linux/netfilter_decnet.h #usr/include/linux/netfilter_ipv4 #usr/include/linux/netfilter_ipv4.h -#usr/include/linux/netfilter_ipv4/ip_conntrack.h -#usr/include/linux/netfilter_ipv4/ip_conntrack_amanda.h -#usr/include/linux/netfilter_ipv4/ip_conntrack_core.h -#usr/include/linux/netfilter_ipv4/ip_conntrack_ftp.h -#usr/include/linux/netfilter_ipv4/ip_conntrack_helper.h -#usr/include/linux/netfilter_ipv4/ip_conntrack_icmp.h -#usr/include/linux/netfilter_ipv4/ip_conntrack_irc.h -#usr/include/linux/netfilter_ipv4/ip_conntrack_protocol.h -#usr/include/linux/netfilter_ipv4/ip_conntrack_sctp.h -#usr/include/linux/netfilter_ipv4/ip_conntrack_tcp.h -#usr/include/linux/netfilter_ipv4/ip_conntrack_tftp.h -#usr/include/linux/netfilter_ipv4/ip_conntrack_tuple.h -#usr/include/linux/netfilter_ipv4/ip_nat.h -#usr/include/linux/netfilter_ipv4/ip_nat_core.h -#usr/include/linux/netfilter_ipv4/ip_nat_helper.h -#usr/include/linux/netfilter_ipv4/ip_nat_protocol.h -#usr/include/linux/netfilter_ipv4/ip_nat_rule.h #usr/include/linux/netfilter_ipv4/ip_queue.h #usr/include/linux/netfilter_ipv4/ip_tables.h -#usr/include/linux/netfilter_ipv4/ipt_CLASSIFY.h #usr/include/linux/netfilter_ipv4/ipt_CLUSTERIP.h -#usr/include/linux/netfilter_ipv4/ipt_CONNMARK.h -#usr/include/linux/netfilter_ipv4/ipt_DSCP.h #usr/include/linux/netfilter_ipv4/ipt_ECN.h #usr/include/linux/netfilter_ipv4/ipt_LOG.h -#usr/include/linux/netfilter_ipv4/ipt_MARK.h #usr/include/linux/netfilter_ipv4/ipt_REJECT.h #usr/include/linux/netfilter_ipv4/ipt_SAME.h -#usr/include/linux/netfilter_ipv4/ipt_TCPMSS.h -#usr/include/linux/netfilter_ipv4/ipt_TOS.h +#usr/include/linux/netfilter_ipv4/ipt_TTL.h #usr/include/linux/netfilter_ipv4/ipt_ULOG.h #usr/include/linux/netfilter_ipv4/ipt_addrtype.h #usr/include/linux/netfilter_ipv4/ipt_ah.h -#usr/include/linux/netfilter_ipv4/ipt_comment.h -#usr/include/linux/netfilter_ipv4/ipt_connmark.h -#usr/include/linux/netfilter_ipv4/ipt_conntrack.h -#usr/include/linux/netfilter_ipv4/ipt_dscp.h #usr/include/linux/netfilter_ipv4/ipt_ecn.h -#usr/include/linux/netfilter_ipv4/ipt_esp.h -#usr/include/linux/netfilter_ipv4/ipt_hashlimit.h -#usr/include/linux/netfilter_ipv4/ipt_helper.h -#usr/include/linux/netfilter_ipv4/ipt_iprange.h -#usr/include/linux/netfilter_ipv4/ipt_length.h -#usr/include/linux/netfilter_ipv4/ipt_limit.h -#usr/include/linux/netfilter_ipv4/ipt_mac.h -#usr/include/linux/netfilter_ipv4/ipt_mark.h -#usr/include/linux/netfilter_ipv4/ipt_multiport.h -#usr/include/linux/netfilter_ipv4/ipt_owner.h -#usr/include/linux/netfilter_ipv4/ipt_physdev.h -#usr/include/linux/netfilter_ipv4/ipt_pkttype.h #usr/include/linux/netfilter_ipv4/ipt_realm.h -#usr/include/linux/netfilter_ipv4/ipt_recent.h -#usr/include/linux/netfilter_ipv4/ipt_sctp.h -#usr/include/linux/netfilter_ipv4/ipt_state.h -#usr/include/linux/netfilter_ipv4/ipt_tcpmss.h -#usr/include/linux/netfilter_ipv4/ipt_tos.h #usr/include/linux/netfilter_ipv4/ipt_ttl.h -#usr/include/linux/netfilter_ipv4/listhelp.h -#usr/include/linux/netfilter_ipv4/lockhelp.h #usr/include/linux/netfilter_ipv6 #usr/include/linux/netfilter_ipv6.h #usr/include/linux/netfilter_ipv6/ip6_tables.h +#usr/include/linux/netfilter_ipv6/ip6t_HL.h #usr/include/linux/netfilter_ipv6/ip6t_LOG.h -#usr/include/linux/netfilter_ipv6/ip6t_MARK.h +#usr/include/linux/netfilter_ipv6/ip6t_REJECT.h #usr/include/linux/netfilter_ipv6/ip6t_ah.h -#usr/include/linux/netfilter_ipv6/ip6t_esp.h #usr/include/linux/netfilter_ipv6/ip6t_frag.h #usr/include/linux/netfilter_ipv6/ip6t_hl.h #usr/include/linux/netfilter_ipv6/ip6t_ipv6header.h -#usr/include/linux/netfilter_ipv6/ip6t_length.h -#usr/include/linux/netfilter_ipv6/ip6t_limit.h -#usr/include/linux/netfilter_ipv6/ip6t_mac.h -#usr/include/linux/netfilter_ipv6/ip6t_mark.h -#usr/include/linux/netfilter_ipv6/ip6t_multiport.h +#usr/include/linux/netfilter_ipv6/ip6t_mh.h #usr/include/linux/netfilter_ipv6/ip6t_opts.h -#usr/include/linux/netfilter_ipv6/ip6t_owner.h -#usr/include/linux/netfilter_ipv6/ip6t_physdev.h #usr/include/linux/netfilter_ipv6/ip6t_rt.h #usr/include/linux/netlink.h #usr/include/linux/netrom.h @@ -632,137 +460,79 @@ #usr/include/linux/nfs4.h #usr/include/linux/nfs4_mount.h #usr/include/linux/nfs_fs.h -#usr/include/linux/nfs_fs_i.h -#usr/include/linux/nfs_fs_sb.h #usr/include/linux/nfs_idmap.h #usr/include/linux/nfs_mount.h -#usr/include/linux/nfs_xdr.h +#usr/include/linux/nfsacl.h #usr/include/linux/nfsd #usr/include/linux/nfsd/const.h #usr/include/linux/nfsd/debug.h #usr/include/linux/nfsd/export.h -#usr/include/linux/nfsd/interface.h -#usr/include/linux/nfsd/nfsd.h #usr/include/linux/nfsd/nfsfh.h -#usr/include/linux/nfsd/state.h #usr/include/linux/nfsd/stats.h #usr/include/linux/nfsd/syscall.h -#usr/include/linux/nfsd/xdr.h -#usr/include/linux/nfsd/xdr3.h -#usr/include/linux/nfsd/xdr4.h -#usr/include/linux/nls.h -#usr/include/linux/nmi.h -#usr/include/linux/node.h -#usr/include/linux/notifier.h +#usr/include/linux/nl80211.h #usr/include/linux/nubus.h -#usr/include/linux/numa.h #usr/include/linux/nvram.h -#usr/include/linux/openprom_fs.h -#usr/include/linux/oprofile.h -#usr/include/linux/pagemap.h -#usr/include/linux/pagevec.h +#usr/include/linux/oom.h #usr/include/linux/param.h #usr/include/linux/parport.h -#usr/include/linux/parport_pc.h -#usr/include/linux/parser.h #usr/include/linux/patchkey.h -#usr/include/linux/pci-dynids.h #usr/include/linux/pci.h -#usr/include/linux/pci_ids.h -#usr/include/linux/pcieport_if.h -#usr/include/linux/percpu.h -#usr/include/linux/percpu_counter.h +#usr/include/linux/pci_regs.h +#usr/include/linux/perf_event.h #usr/include/linux/personality.h #usr/include/linux/pfkeyv2.h #usr/include/linux/pg.h -#usr/include/linux/pipe_fs_i.h +#usr/include/linux/phantom.h +#usr/include/linux/phonet.h #usr/include/linux/pkt_cls.h #usr/include/linux/pkt_sched.h #usr/include/linux/pktcdvd.h #usr/include/linux/pmu.h #usr/include/linux/poll.h -#usr/include/linux/posix-timers.h -#usr/include/linux/posix_acl.h -#usr/include/linux/posix_acl_xattr.h #usr/include/linux/posix_types.h #usr/include/linux/ppdev.h #usr/include/linux/ppp-comp.h -#usr/include/linux/ppp_channel.h #usr/include/linux/ppp_defs.h +#usr/include/linux/pps.h #usr/include/linux/prctl.h -#usr/include/linux/preempt.h -#usr/include/linux/prefetch.h -#usr/include/linux/proc_fs.h -#usr/include/linux/ps2esdi.h #usr/include/linux/ptrace.h -#usr/include/linux/qic117.h #usr/include/linux/qnx4_fs.h #usr/include/linux/qnxtypes.h #usr/include/linux/quota.h -#usr/include/linux/quotaio_v1.h -#usr/include/linux/quotaio_v2.h #usr/include/linux/radeonfb.h #usr/include/linux/raid -#usr/include/linux/raid/linear.h -#usr/include/linux/raid/md.h #usr/include/linux/raid/md_p.h #usr/include/linux/raid/md_u.h -#usr/include/linux/raid/multipath.h -#usr/include/linux/raid/raid0.h -#usr/include/linux/raid/raid1.h -#usr/include/linux/raid/raid5.h -#usr/include/linux/raid/xor.h #usr/include/linux/random.h #usr/include/linux/raw.h -#usr/include/linux/rbtree.h #usr/include/linux/reboot.h -#usr/include/linux/reiserfs_acl.h #usr/include/linux/reiserfs_fs.h #usr/include/linux/reiserfs_xattr.h #usr/include/linux/resource.h +#usr/include/linux/rfkill.h #usr/include/linux/romfs_fs.h -#usr/include/linux/root_dev.h #usr/include/linux/rose.h #usr/include/linux/route.h #usr/include/linux/rtc.h #usr/include/linux/rtnetlink.h -#usr/include/linux/sc26198.h #usr/include/linux/scc.h #usr/include/linux/sched.h -#usr/include/linux/sctp.h -#usr/include/linux/scx200.h -#usr/include/linux/scx200_gpio.h +#usr/include/linux/screen_info.h #usr/include/linux/sdla.h -#usr/include/linux/sdla_asy.h -#usr/include/linux/sdla_chdlc.h -#usr/include/linux/sdla_fr.h -#usr/include/linux/sdla_ppp.h -#usr/include/linux/sdla_x25.h -#usr/include/linux/sdladrv.h -#usr/include/linux/sdlapci.h -#usr/include/linux/sdlasfm.h -#usr/include/linux/securebits.h -#usr/include/linux/security.h -#usr/include/linux/selection.h #usr/include/linux/selinux_netlink.h #usr/include/linux/sem.h -#usr/include/linux/seqlock.h #usr/include/linux/serial.h -#usr/include/linux/serial167.h -#usr/include/linux/serialP.h -#usr/include/linux/serial_8250.h #usr/include/linux/serial_core.h #usr/include/linux/serial_reg.h #usr/include/linux/serio.h #usr/include/linux/shm.h -#usr/include/linux/siginfo.h #usr/include/linux/signal.h -#usr/include/linux/skbuff.h +#usr/include/linux/signalfd.h #usr/include/linux/smb.h #usr/include/linux/smb_fs.h #usr/include/linux/smb_mount.h #usr/include/linux/smbno.h -#usr/include/linux/smp_lock.h #usr/include/linux/snmp.h #usr/include/linux/socket.h #usr/include/linux/sockios.h @@ -771,975 +541,113 @@ #usr/include/linux/sonypi.h #usr/include/linux/sound.h #usr/include/linux/soundcard.h -#usr/include/linux/spinlock.h -#usr/include/linux/stallion.h +#usr/include/linux/spi +#usr/include/linux/spi/spidev.h +#usr/include/linux/stat.h #usr/include/linux/stddef.h -#usr/include/linux/stringify.h +#usr/include/linux/string.h #usr/include/linux/sunrpc -#usr/include/linux/sunrpc/cache.h -#usr/include/linux/sunrpc/clnt.h #usr/include/linux/sunrpc/debug.h -#usr/include/linux/sunrpc/gss_asn1.h -#usr/include/linux/sunrpc/gss_krb5.h -#usr/include/linux/sunrpc/gss_spkm3.h -#usr/include/linux/sunrpc/sched.h -#usr/include/linux/sunrpc/stats.h -#usr/include/linux/sunrpc/svc.h -#usr/include/linux/sunrpc/svcsock.h -#usr/include/linux/sunrpc/timer.h -#usr/include/linux/sunrpc/types.h -#usr/include/linux/sunrpc/xprt.h -#usr/include/linux/superhyway.h -#usr/include/linux/suspend.h -#usr/include/linux/swap.h -#usr/include/linux/swapops.h +#usr/include/linux/suspend_ioctls.h +#usr/include/linux/swab.h #usr/include/linux/synclink.h -#usr/include/linux/sys.h -#usr/include/linux/syscalls.h #usr/include/linux/sysctl.h -#usr/include/linux/sysdev.h -#usr/include/linux/sysfs.h -#usr/include/linux/sysrq.h -#usr/include/linux/sysv_fs.h +#usr/include/linux/taskstats.h #usr/include/linux/tc_act -#usr/include/linux/tc_act/tc_defact.h #usr/include/linux/tc_act/tc_gact.h #usr/include/linux/tc_act/tc_ipt.h #usr/include/linux/tc_act/tc_mirred.h +#usr/include/linux/tc_act/tc_nat.h #usr/include/linux/tc_act/tc_pedit.h +#usr/include/linux/tc_act/tc_skbedit.h #usr/include/linux/tc_ematch #usr/include/linux/tc_ematch/tc_em_cmp.h #usr/include/linux/tc_ematch/tc_em_meta.h #usr/include/linux/tc_ematch/tc_em_nbyte.h +#usr/include/linux/tc_ematch/tc_em_text.h #usr/include/linux/tcp.h -#usr/include/linux/tcp_diag.h #usr/include/linux/telephony.h #usr/include/linux/termios.h -#usr/include/linux/threads.h -#usr/include/linux/ticable.h #usr/include/linux/time.h #usr/include/linux/times.h #usr/include/linux/timex.h #usr/include/linux/tiocl.h +#usr/include/linux/tipc.h +#usr/include/linux/tipc_config.h #usr/include/linux/toshiba.h #usr/include/linux/tty.h #usr/include/linux/types.h -#usr/include/linux/udf_fs.h #usr/include/linux/udf_fs_i.h -#usr/include/linux/udf_fs_sb.h #usr/include/linux/udp.h -#usr/include/linux/ufs_fs.h #usr/include/linux/uinput.h #usr/include/linux/uio.h #usr/include/linux/ultrasound.h -#usr/include/linux/umem.h #usr/include/linux/un.h #usr/include/linux/unistd.h -#usr/include/linux/usb.h -#usr/include/linux/usb_cdc.h -#usr/include/linux/usb_ch9.h -#usr/include/linux/usb_gadgetfs.h +#usr/include/linux/usb +#usr/include/linux/usb/audio.h +#usr/include/linux/usb/cdc.h +#usr/include/linux/usb/ch9.h +#usr/include/linux/usb/g_printer.h +#usr/include/linux/usb/gadgetfs.h +#usr/include/linux/usb/midi.h +#usr/include/linux/usb/tmc.h +#usr/include/linux/usb/vstusb.h #usr/include/linux/usbdevice_fs.h -#usr/include/linux/user.h #usr/include/linux/utime.h -#usr/include/linux/uts.h #usr/include/linux/utsname.h #usr/include/linux/version.h -#usr/include/linux/video_decoder.h -#usr/include/linux/video_encoder.h +#usr/include/linux/veth.h #usr/include/linux/videodev.h #usr/include/linux/videodev2.h #usr/include/linux/videotext.h -#usr/include/linux/vmalloc.h +#usr/include/linux/virtio_9p.h +#usr/include/linux/virtio_balloon.h +#usr/include/linux/virtio_blk.h +#usr/include/linux/virtio_config.h +#usr/include/linux/virtio_console.h +#usr/include/linux/virtio_ids.h +#usr/include/linux/virtio_net.h +#usr/include/linux/virtio_pci.h +#usr/include/linux/virtio_ring.h +#usr/include/linux/virtio_rng.h #usr/include/linux/vt.h -#usr/include/linux/vt_buffer.h -#usr/include/linux/vt_kern.h #usr/include/linux/wait.h -#usr/include/linux/wanpipe.h #usr/include/linux/wanrouter.h #usr/include/linux/watchdog.h -#usr/include/linux/wavefront.h +#usr/include/linux/wimax +#usr/include/linux/wimax.h +#usr/include/linux/wimax/i2400m.h #usr/include/linux/wireless.h -#usr/include/linux/workqueue.h #usr/include/linux/x25.h #usr/include/linux/xattr.h -#usr/include/linux/xattr_acl.h #usr/include/linux/xfrm.h -#usr/include/linux/yam.h -#usr/include/linux/zftape.h -#usr/include/linux/zorro.h -#usr/include/linux/zorro_ids.h -#opt/MACHINE-uClibc -#opt/MACHINE-uClibc/usr -#opt/MACHINE-uClibc/usr/include -#opt/MACHINE-uClibc/usr/include/asm -#opt/MACHINE-uClibc/usr/include/asm/8253pit.h -#opt/MACHINE-uClibc/usr/include/asm/a.out.h -#opt/MACHINE-uClibc/usr/include/asm/agp.h -#opt/MACHINE-uClibc/usr/include/asm/apic.h -#opt/MACHINE-uClibc/usr/include/asm/apicdef.h -#opt/MACHINE-uClibc/usr/include/asm/arch_hooks.h -#opt/MACHINE-uClibc/usr/include/asm/atomic.h -#opt/MACHINE-uClibc/usr/include/asm/bitops.h -#opt/MACHINE-uClibc/usr/include/asm/boot.h -#opt/MACHINE-uClibc/usr/include/asm/byteorder.h -#opt/MACHINE-uClibc/usr/include/asm/cache.h -#opt/MACHINE-uClibc/usr/include/asm/cacheflush.h -#opt/MACHINE-uClibc/usr/include/asm/checksum.h -#opt/MACHINE-uClibc/usr/include/asm/cpu.h -#opt/MACHINE-uClibc/usr/include/asm/cpufeature.h -#opt/MACHINE-uClibc/usr/include/asm/debugreg.h -#opt/MACHINE-uClibc/usr/include/asm/desc.h -#opt/MACHINE-uClibc/usr/include/asm/dma.h -#opt/MACHINE-uClibc/usr/include/asm/e820.h -#opt/MACHINE-uClibc/usr/include/asm/elf.h -#opt/MACHINE-uClibc/usr/include/asm/errno.h -#opt/MACHINE-uClibc/usr/include/asm/fcntl.h -#opt/MACHINE-uClibc/usr/include/asm/fixmap.h -#opt/MACHINE-uClibc/usr/include/asm/floppy.h -#opt/MACHINE-uClibc/usr/include/asm/genapic.h -#opt/MACHINE-uClibc/usr/include/asm/hardirq.h -#opt/MACHINE-uClibc/usr/include/asm/hdreg.h -#opt/MACHINE-uClibc/usr/include/asm/hw_irq.h -#opt/MACHINE-uClibc/usr/include/asm/i8259.h -#opt/MACHINE-uClibc/usr/include/asm/init.h -#opt/MACHINE-uClibc/usr/include/asm/io.h -#opt/MACHINE-uClibc/usr/include/asm/io_apic.h -#opt/MACHINE-uClibc/usr/include/asm/ioctl.h -#opt/MACHINE-uClibc/usr/include/asm/ioctls.h -#opt/MACHINE-uClibc/usr/include/asm/ipc.h -#opt/MACHINE-uClibc/usr/include/asm/ipcbuf.h -#opt/MACHINE-uClibc/usr/include/asm/irq.h -#opt/MACHINE-uClibc/usr/include/asm/kdebug.h -#opt/MACHINE-uClibc/usr/include/asm/kprobes.h -#opt/MACHINE-uClibc/usr/include/asm/ldt.h -#opt/MACHINE-uClibc/usr/include/asm/linkage.h -#opt/MACHINE-uClibc/usr/include/asm/mach-bigsmp -#opt/MACHINE-uClibc/usr/include/asm/mach-bigsmp/mach_apic.h -#opt/MACHINE-uClibc/usr/include/asm/mach-bigsmp/mach_apicdef.h -#opt/MACHINE-uClibc/usr/include/asm/mach-bigsmp/mach_ipi.h -#opt/MACHINE-uClibc/usr/include/asm/mach-bigsmp/mach_mpspec.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default -#opt/MACHINE-uClibc/usr/include/asm/mach-default/apm.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default/bios_ebda.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default/do_timer.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default/entry_arch.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default/io_ports.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default/irq_vectors.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default/mach_apic.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default/mach_apicdef.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default/mach_ipi.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default/mach_mpparse.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default/mach_mpspec.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default/mach_reboot.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default/mach_time.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default/mach_timer.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default/mach_traps.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default/mach_wakecpu.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default/pci-functions.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default/setup_arch_post.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default/setup_arch_pre.h -#opt/MACHINE-uClibc/usr/include/asm/mach-default/smpboot_hooks.h -#opt/MACHINE-uClibc/usr/include/asm/mach-es7000 -#opt/MACHINE-uClibc/usr/include/asm/mach-es7000/mach_apic.h -#opt/MACHINE-uClibc/usr/include/asm/mach-es7000/mach_apicdef.h -#opt/MACHINE-uClibc/usr/include/asm/mach-es7000/mach_ipi.h -#opt/MACHINE-uClibc/usr/include/asm/mach-es7000/mach_mpparse.h -#opt/MACHINE-uClibc/usr/include/asm/mach-es7000/mach_mpspec.h -#opt/MACHINE-uClibc/usr/include/asm/mach-es7000/mach_wakecpu.h -#opt/MACHINE-uClibc/usr/include/asm/mach-generic -#opt/MACHINE-uClibc/usr/include/asm/mach-generic/mach_apic.h -#opt/MACHINE-uClibc/usr/include/asm/mach-generic/mach_apicdef.h -#opt/MACHINE-uClibc/usr/include/asm/mach-generic/mach_ipi.h -#opt/MACHINE-uClibc/usr/include/asm/mach-generic/mach_mpparse.h -#opt/MACHINE-uClibc/usr/include/asm/mach-generic/mach_mpspec.h -#opt/MACHINE-uClibc/usr/include/asm/mach-numaq -#opt/MACHINE-uClibc/usr/include/asm/mach-numaq/mach_apic.h -#opt/MACHINE-uClibc/usr/include/asm/mach-numaq/mach_apicdef.h -#opt/MACHINE-uClibc/usr/include/asm/mach-numaq/mach_ipi.h -#opt/MACHINE-uClibc/usr/include/asm/mach-numaq/mach_mpparse.h -#opt/MACHINE-uClibc/usr/include/asm/mach-numaq/mach_mpspec.h -#opt/MACHINE-uClibc/usr/include/asm/mach-numaq/mach_wakecpu.h -#opt/MACHINE-uClibc/usr/include/asm/mach-summit -#opt/MACHINE-uClibc/usr/include/asm/mach-summit/mach_apic.h -#opt/MACHINE-uClibc/usr/include/asm/mach-summit/mach_apicdef.h -#opt/MACHINE-uClibc/usr/include/asm/mach-summit/mach_ipi.h -#opt/MACHINE-uClibc/usr/include/asm/mach-summit/mach_mpparse.h -#opt/MACHINE-uClibc/usr/include/asm/mach-summit/mach_mpspec.h -#opt/MACHINE-uClibc/usr/include/asm/mach-visws -#opt/MACHINE-uClibc/usr/include/asm/mach-visws/cobalt.h -#opt/MACHINE-uClibc/usr/include/asm/mach-visws/do_timer.h -#opt/MACHINE-uClibc/usr/include/asm/mach-visws/entry_arch.h -#opt/MACHINE-uClibc/usr/include/asm/mach-visws/irq_vectors.h -#opt/MACHINE-uClibc/usr/include/asm/mach-visws/lithium.h -#opt/MACHINE-uClibc/usr/include/asm/mach-visws/mach_apic.h -#opt/MACHINE-uClibc/usr/include/asm/mach-visws/mach_apicdef.h -#opt/MACHINE-uClibc/usr/include/asm/mach-visws/piix4.h -#opt/MACHINE-uClibc/usr/include/asm/mach-visws/setup_arch_post.h -#opt/MACHINE-uClibc/usr/include/asm/mach-visws/setup_arch_pre.h -#opt/MACHINE-uClibc/usr/include/asm/mach-visws/smpboot_hooks.h -#opt/MACHINE-uClibc/usr/include/asm/mach-voyager -#opt/MACHINE-uClibc/usr/include/asm/mach-voyager/do_timer.h -#opt/MACHINE-uClibc/usr/include/asm/mach-voyager/entry_arch.h -#opt/MACHINE-uClibc/usr/include/asm/mach-voyager/irq_vectors.h -#opt/MACHINE-uClibc/usr/include/asm/mach-voyager/setup_arch_post.h -#opt/MACHINE-uClibc/usr/include/asm/mach-voyager/setup_arch_pre.h -#opt/MACHINE-uClibc/usr/include/asm/math_emu.h -#opt/MACHINE-uClibc/usr/include/asm/mca.h -#opt/MACHINE-uClibc/usr/include/asm/mca_dma.h -#opt/MACHINE-uClibc/usr/include/asm/mman.h -#opt/MACHINE-uClibc/usr/include/asm/mmu.h -#opt/MACHINE-uClibc/usr/include/asm/mmu_context.h -#opt/MACHINE-uClibc/usr/include/asm/mmx.h -#opt/MACHINE-uClibc/usr/include/asm/module.h -#opt/MACHINE-uClibc/usr/include/asm/mpspec.h -#opt/MACHINE-uClibc/usr/include/asm/mpspec_def.h -#opt/MACHINE-uClibc/usr/include/asm/msgbuf.h -#opt/MACHINE-uClibc/usr/include/asm/msr.h -#opt/MACHINE-uClibc/usr/include/asm/mtrr.h -#opt/MACHINE-uClibc/usr/include/asm/namei.h -#opt/MACHINE-uClibc/usr/include/asm/nmi.h -#opt/MACHINE-uClibc/usr/include/asm/node.h -#opt/MACHINE-uClibc/usr/include/asm/numaq.h -#opt/MACHINE-uClibc/usr/include/asm/numnodes.h -#opt/MACHINE-uClibc/usr/include/asm/page.h -#opt/MACHINE-uClibc/usr/include/asm/param.h -#opt/MACHINE-uClibc/usr/include/asm/parport.h -#opt/MACHINE-uClibc/usr/include/asm/pgalloc.h -#opt/MACHINE-uClibc/usr/include/asm/poll.h -#opt/MACHINE-uClibc/usr/include/asm/posix_types.h -#opt/MACHINE-uClibc/usr/include/asm/processor.h -#opt/MACHINE-uClibc/usr/include/asm/ptrace.h -#opt/MACHINE-uClibc/usr/include/asm/rwlock.h -#opt/MACHINE-uClibc/usr/include/asm/segment.h -#opt/MACHINE-uClibc/usr/include/asm/semaphore.h -#opt/MACHINE-uClibc/usr/include/asm/sembuf.h -#opt/MACHINE-uClibc/usr/include/asm/serial.h -#opt/MACHINE-uClibc/usr/include/asm/shmbuf.h -#opt/MACHINE-uClibc/usr/include/asm/shmparam.h -#opt/MACHINE-uClibc/usr/include/asm/sigcontext.h -#opt/MACHINE-uClibc/usr/include/asm/siginfo.h -#opt/MACHINE-uClibc/usr/include/asm/socket.h -#opt/MACHINE-uClibc/usr/include/asm/sockios.h -#opt/MACHINE-uClibc/usr/include/asm/spinlock.h -#opt/MACHINE-uClibc/usr/include/asm/srat.h -#opt/MACHINE-uClibc/usr/include/asm/stat.h -#opt/MACHINE-uClibc/usr/include/asm/suspend.h -#opt/MACHINE-uClibc/usr/include/asm/system.h -#opt/MACHINE-uClibc/usr/include/asm/termbits.h -#opt/MACHINE-uClibc/usr/include/asm/termios.h -#opt/MACHINE-uClibc/usr/include/asm/timer.h -#opt/MACHINE-uClibc/usr/include/asm/timex.h -#opt/MACHINE-uClibc/usr/include/asm/tlbflush.h -#opt/MACHINE-uClibc/usr/include/asm/types.h -#opt/MACHINE-uClibc/usr/include/asm/ucontext.h -#opt/MACHINE-uClibc/usr/include/asm/unaligned.h -#opt/MACHINE-uClibc/usr/include/asm/unistd.h -#opt/MACHINE-uClibc/usr/include/asm/user.h -#opt/MACHINE-uClibc/usr/include/asm/vga.h -#opt/MACHINE-uClibc/usr/include/asm/vic.h -#opt/MACHINE-uClibc/usr/include/asm/vm86.h -#opt/MACHINE-uClibc/usr/include/asm/voyager.h -#opt/MACHINE-uClibc/usr/include/linux -#opt/MACHINE-uClibc/usr/include/linux/8250_pci.h -#opt/MACHINE-uClibc/usr/include/linux/a.out.h -#opt/MACHINE-uClibc/usr/include/linux/acct.h -#opt/MACHINE-uClibc/usr/include/linux/acpi.h -#opt/MACHINE-uClibc/usr/include/linux/adb.h -#opt/MACHINE-uClibc/usr/include/linux/adfs_fs.h -#opt/MACHINE-uClibc/usr/include/linux/adfs_fs_sb.h -#opt/MACHINE-uClibc/usr/include/linux/affs_fs.h -#opt/MACHINE-uClibc/usr/include/linux/affs_hardblocks.h -#opt/MACHINE-uClibc/usr/include/linux/agpgart.h -#opt/MACHINE-uClibc/usr/include/linux/aio.h -#opt/MACHINE-uClibc/usr/include/linux/aio_abi.h -#opt/MACHINE-uClibc/usr/include/linux/amifd.h -#opt/MACHINE-uClibc/usr/include/linux/amifdreg.h -#opt/MACHINE-uClibc/usr/include/linux/amigaffs.h -#opt/MACHINE-uClibc/usr/include/linux/apm_bios.h -#opt/MACHINE-uClibc/usr/include/linux/ata.h -#opt/MACHINE-uClibc/usr/include/linux/atalk.h -#opt/MACHINE-uClibc/usr/include/linux/atm.h -#opt/MACHINE-uClibc/usr/include/linux/atm_eni.h -#opt/MACHINE-uClibc/usr/include/linux/atm_he.h -#opt/MACHINE-uClibc/usr/include/linux/atm_idt77105.h -#opt/MACHINE-uClibc/usr/include/linux/atm_nicstar.h -#opt/MACHINE-uClibc/usr/include/linux/atm_suni.h -#opt/MACHINE-uClibc/usr/include/linux/atm_tcp.h -#opt/MACHINE-uClibc/usr/include/linux/atm_zatm.h -#opt/MACHINE-uClibc/usr/include/linux/atmapi.h -#opt/MACHINE-uClibc/usr/include/linux/atmarp.h -#opt/MACHINE-uClibc/usr/include/linux/atmbr2684.h -#opt/MACHINE-uClibc/usr/include/linux/atmclip.h -#opt/MACHINE-uClibc/usr/include/linux/atmdev.h -#opt/MACHINE-uClibc/usr/include/linux/atmioc.h -#opt/MACHINE-uClibc/usr/include/linux/atmlec.h -#opt/MACHINE-uClibc/usr/include/linux/atmmpc.h -#opt/MACHINE-uClibc/usr/include/linux/atmppp.h -#opt/MACHINE-uClibc/usr/include/linux/atmsap.h -#opt/MACHINE-uClibc/usr/include/linux/atmsvc.h -#opt/MACHINE-uClibc/usr/include/linux/audit.h -#opt/MACHINE-uClibc/usr/include/linux/auto_fs.h -#opt/MACHINE-uClibc/usr/include/linux/auto_fs4.h -#opt/MACHINE-uClibc/usr/include/linux/autoconf.h -#opt/MACHINE-uClibc/usr/include/linux/awe_voice.h -#opt/MACHINE-uClibc/usr/include/linux/ax25.h -#opt/MACHINE-uClibc/usr/include/linux/b1lli.h -#opt/MACHINE-uClibc/usr/include/linux/backing-dev.h -#opt/MACHINE-uClibc/usr/include/linux/backlight.h -#opt/MACHINE-uClibc/usr/include/linux/baycom.h -#opt/MACHINE-uClibc/usr/include/linux/bcd.h -#opt/MACHINE-uClibc/usr/include/linux/bfs_fs.h -#opt/MACHINE-uClibc/usr/include/linux/binfmts.h -#opt/MACHINE-uClibc/usr/include/linux/bitmap.h -#opt/MACHINE-uClibc/usr/include/linux/bitops.h -#opt/MACHINE-uClibc/usr/include/linux/blkpg.h -#opt/MACHINE-uClibc/usr/include/linux/blockgroup_lock.h -#opt/MACHINE-uClibc/usr/include/linux/bootmem.h -#opt/MACHINE-uClibc/usr/include/linux/bpqether.h -#opt/MACHINE-uClibc/usr/include/linux/byteorder -#opt/MACHINE-uClibc/usr/include/linux/byteorder/big_endian.h -#opt/MACHINE-uClibc/usr/include/linux/byteorder/generic.h -#opt/MACHINE-uClibc/usr/include/linux/byteorder/little_endian.h -#opt/MACHINE-uClibc/usr/include/linux/byteorder/pdp_endian.h -#opt/MACHINE-uClibc/usr/include/linux/byteorder/swab.h -#opt/MACHINE-uClibc/usr/include/linux/byteorder/swabb.h -#opt/MACHINE-uClibc/usr/include/linux/cache.h -#opt/MACHINE-uClibc/usr/include/linux/capability.h -#opt/MACHINE-uClibc/usr/include/linux/capi.h -#opt/MACHINE-uClibc/usr/include/linux/cciss_ioctl.h -#opt/MACHINE-uClibc/usr/include/linux/cd1400.h -#opt/MACHINE-uClibc/usr/include/linux/cdk.h -#opt/MACHINE-uClibc/usr/include/linux/cdrom.h -#opt/MACHINE-uClibc/usr/include/linux/circ_buf.h -#opt/MACHINE-uClibc/usr/include/linux/cobalt-nvram.h -#opt/MACHINE-uClibc/usr/include/linux/coda.h -#opt/MACHINE-uClibc/usr/include/linux/coda_proc.h -#opt/MACHINE-uClibc/usr/include/linux/coda_psdev.h -#opt/MACHINE-uClibc/usr/include/linux/coff.h -#opt/MACHINE-uClibc/usr/include/linux/com20020.h -#opt/MACHINE-uClibc/usr/include/linux/compat.h -#opt/MACHINE-uClibc/usr/include/linux/compat_ioctl.h -#opt/MACHINE-uClibc/usr/include/linux/compiler.h -#opt/MACHINE-uClibc/usr/include/linux/comstats.h -#opt/MACHINE-uClibc/usr/include/linux/config.h -#opt/MACHINE-uClibc/usr/include/linux/console.h -#opt/MACHINE-uClibc/usr/include/linux/console_struct.h -#opt/MACHINE-uClibc/usr/include/linux/consolemap.h -#opt/MACHINE-uClibc/usr/include/linux/cpu.h -#opt/MACHINE-uClibc/usr/include/linux/cpufreq.h -#opt/MACHINE-uClibc/usr/include/linux/cramfs_fs.h -#opt/MACHINE-uClibc/usr/include/linux/cramfs_fs_sb.h -#opt/MACHINE-uClibc/usr/include/linux/crc32.h -#opt/MACHINE-uClibc/usr/include/linux/crypto.h -#opt/MACHINE-uClibc/usr/include/linux/ctype.h -#opt/MACHINE-uClibc/usr/include/linux/cuda.h -#opt/MACHINE-uClibc/usr/include/linux/cyclades.h -#opt/MACHINE-uClibc/usr/include/linux/cycx_cfm.h -#opt/MACHINE-uClibc/usr/include/linux/cycx_drv.h -#opt/MACHINE-uClibc/usr/include/linux/cycx_x25.h -#opt/MACHINE-uClibc/usr/include/linux/devfs_fs.h -#opt/MACHINE-uClibc/usr/include/linux/devfs_fs_kernel.h -#opt/MACHINE-uClibc/usr/include/linux/device-mapper.h -#opt/MACHINE-uClibc/usr/include/linux/device.h -#opt/MACHINE-uClibc/usr/include/linux/devpts_fs.h -#opt/MACHINE-uClibc/usr/include/linux/dirent.h -#opt/MACHINE-uClibc/usr/include/linux/divert.h -#opt/MACHINE-uClibc/usr/include/linux/dm-ioctl.h -#opt/MACHINE-uClibc/usr/include/linux/dn.h -#opt/MACHINE-uClibc/usr/include/linux/dnotify.h -#opt/MACHINE-uClibc/usr/include/linux/dqblk_v1.h -#opt/MACHINE-uClibc/usr/include/linux/dqblk_v2.h -#opt/MACHINE-uClibc/usr/include/linux/dqblk_xfs.h -#opt/MACHINE-uClibc/usr/include/linux/dtlk.h -#opt/MACHINE-uClibc/usr/include/linux/dvb -#opt/MACHINE-uClibc/usr/include/linux/dvb/audio.h -#opt/MACHINE-uClibc/usr/include/linux/dvb/ca.h -#opt/MACHINE-uClibc/usr/include/linux/dvb/dmx.h -#opt/MACHINE-uClibc/usr/include/linux/dvb/frontend.h -#opt/MACHINE-uClibc/usr/include/linux/dvb/net.h -#opt/MACHINE-uClibc/usr/include/linux/dvb/osd.h -#opt/MACHINE-uClibc/usr/include/linux/dvb/version.h -#opt/MACHINE-uClibc/usr/include/linux/dvb/video.h -#opt/MACHINE-uClibc/usr/include/linux/eeprom.h -#opt/MACHINE-uClibc/usr/include/linux/efi.h -#opt/MACHINE-uClibc/usr/include/linux/efs_dir.h -#opt/MACHINE-uClibc/usr/include/linux/efs_fs.h -#opt/MACHINE-uClibc/usr/include/linux/efs_fs_i.h -#opt/MACHINE-uClibc/usr/include/linux/efs_fs_sb.h -#opt/MACHINE-uClibc/usr/include/linux/efs_vh.h -#opt/MACHINE-uClibc/usr/include/linux/eisa.h -#opt/MACHINE-uClibc/usr/include/linux/elevator.h -#opt/MACHINE-uClibc/usr/include/linux/elf-fdpic.h -#opt/MACHINE-uClibc/usr/include/linux/elf.h -#opt/MACHINE-uClibc/usr/include/linux/elfcore.h -#opt/MACHINE-uClibc/usr/include/linux/err.h 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-#opt/MACHINE-uClibc/usr/include/linux/time.h -#opt/MACHINE-uClibc/usr/include/linux/times.h -#opt/MACHINE-uClibc/usr/include/linux/timex.h -#opt/MACHINE-uClibc/usr/include/linux/tiocl.h -#opt/MACHINE-uClibc/usr/include/linux/toshiba.h -#opt/MACHINE-uClibc/usr/include/linux/tty.h -#opt/MACHINE-uClibc/usr/include/linux/types.h -#opt/MACHINE-uClibc/usr/include/linux/udf_fs.h -#opt/MACHINE-uClibc/usr/include/linux/udf_fs_i.h -#opt/MACHINE-uClibc/usr/include/linux/udf_fs_sb.h -#opt/MACHINE-uClibc/usr/include/linux/udp.h -#opt/MACHINE-uClibc/usr/include/linux/ufs_fs.h -#opt/MACHINE-uClibc/usr/include/linux/uinput.h -#opt/MACHINE-uClibc/usr/include/linux/uio.h -#opt/MACHINE-uClibc/usr/include/linux/ultrasound.h -#opt/MACHINE-uClibc/usr/include/linux/umem.h -#opt/MACHINE-uClibc/usr/include/linux/un.h -#opt/MACHINE-uClibc/usr/include/linux/unistd.h -#opt/MACHINE-uClibc/usr/include/linux/usb.h -#opt/MACHINE-uClibc/usr/include/linux/usb_cdc.h -#opt/MACHINE-uClibc/usr/include/linux/usb_ch9.h -#opt/MACHINE-uClibc/usr/include/linux/usb_gadgetfs.h -#opt/MACHINE-uClibc/usr/include/linux/usbdevice_fs.h -#opt/MACHINE-uClibc/usr/include/linux/user.h -#opt/MACHINE-uClibc/usr/include/linux/utime.h -#opt/MACHINE-uClibc/usr/include/linux/uts.h -#opt/MACHINE-uClibc/usr/include/linux/utsname.h -#opt/MACHINE-uClibc/usr/include/linux/version.h -#opt/MACHINE-uClibc/usr/include/linux/video_decoder.h -#opt/MACHINE-uClibc/usr/include/linux/video_encoder.h -#opt/MACHINE-uClibc/usr/include/linux/videodev.h -#opt/MACHINE-uClibc/usr/include/linux/videodev2.h -#opt/MACHINE-uClibc/usr/include/linux/videotext.h -#opt/MACHINE-uClibc/usr/include/linux/vmalloc.h -#opt/MACHINE-uClibc/usr/include/linux/vt.h -#opt/MACHINE-uClibc/usr/include/linux/vt_buffer.h -#opt/MACHINE-uClibc/usr/include/linux/vt_kern.h -#opt/MACHINE-uClibc/usr/include/linux/wait.h -#opt/MACHINE-uClibc/usr/include/linux/wanpipe.h -#opt/MACHINE-uClibc/usr/include/linux/wanrouter.h -#opt/MACHINE-uClibc/usr/include/linux/watchdog.h -#opt/MACHINE-uClibc/usr/include/linux/wavefront.h -#opt/MACHINE-uClibc/usr/include/linux/wireless.h -#opt/MACHINE-uClibc/usr/include/linux/workqueue.h -#opt/MACHINE-uClibc/usr/include/linux/x25.h -#opt/MACHINE-uClibc/usr/include/linux/xattr.h -#opt/MACHINE-uClibc/usr/include/linux/xattr_acl.h -#opt/MACHINE-uClibc/usr/include/linux/xfrm.h -#opt/MACHINE-uClibc/usr/include/linux/yam.h -#opt/MACHINE-uClibc/usr/include/linux/zftape.h -#opt/MACHINE-uClibc/usr/include/linux/zorro.h -#opt/MACHINE-uClibc/usr/include/linux/zorro_ids.h +#usr/include/mtd +#usr/include/mtd/inftl-user.h +#usr/include/mtd/mtd-abi.h +#usr/include/mtd/mtd-user.h +#usr/include/mtd/nftl-user.h +#usr/include/mtd/ubi-user.h +#usr/include/rdma +#usr/include/rdma/ib_user_mad.h +#usr/include/scsi +#usr/include/scsi/scsi.h +#usr/include/scsi/scsi_bsg_fc.h +#usr/include/scsi/scsi_netlink.h +#usr/include/scsi/scsi_netlink_fc.h +#usr/include/sound +#usr/include/sound/asequencer.h +#usr/include/sound/asound.h +#usr/include/sound/asound_fm.h +#usr/include/sound/emu10k1.h +#usr/include/sound/hdsp.h +#usr/include/sound/hdspm.h +#usr/include/sound/sb16_csp.h +#usr/include/sound/sfnt_info.h +#usr/include/sound/sscape_ioctl.h +#usr/include/video +#usr/include/video/edid.h +#usr/include/video/sisfb.h +#usr/include/video/uvesafb.h +#usr/include/xen +#usr/include/xen/evtchn.h diff --git a/config/rootfiles/common/mbr b/config/rootfiles/common/mbr index 29544b6..231e27d 100644 --- a/config/rootfiles/common/mbr +++ b/config/rootfiles/common/mbr @@ -1,3 +1,2 @@ -#usr/local/man/man8 -#usr/local/man/man8/install-mbr.8 -#usr/local/sbin/install-mbr +#usr/sbin/install-mbr +#usr/share/man/man8/install-mbr.8 diff --git a/lfs/glibc b/lfs/glibc index e2638b6..97b1cfe 100644 --- a/lfs/glibc +++ b/lfs/glibc @@ -24,11 +24,7 @@ include Config -ifeq "$(MACHINE_TYPE)" "arm" - VER = 2.5 -else - VER = 2.3.6 -endif +VER = 2.5 THISAPP = glibc-$(VER) DL_FILE = $(THISAPP).tar.bz2 @@ -73,13 +69,8 @@ objects = $(DL_FILE) \ $(DL_FILE) = $(DL_FROM)/$(DL_FILE) glibc-libidn-$(VER).tar.bz2 = $(DL_FROM)/glibc-libidn-$(VER).tar.bz2 -ifeq "$(MACHINE_TYPE)" "arm" - $(DL_FILE)_MD5 = 1fb29764a6a650a4d5b409dda227ac9f - glibc-libidn-$(VER).tar.bz2_MD5 = 8787868ba8962d9b125997ec2f25ac01 -else - $(DL_FILE)_MD5 = bfdce99f82d6dbcb64b7f11c05d6bc96 - glibc-libidn-$(VER).tar.bz2_MD5 = 49dbe06ce830fc73874d6b38bdc5b4db -endif +$(DL_FILE)_MD5 = 1fb29764a6a650a4d5b409dda227ac9f +glibc-libidn-$(VER).tar.bz2_MD5 = 8787868ba8962d9b125997ec2f25ac01 # ARM needs glibc-ports ifeq "$(MACHINE_TYPE)" "arm" @@ -125,15 +116,9 @@ ifeq "$(MACHINE_TYPE)" "arm" # asm/page.h should not be included in sysdeps/unix/sysv/linux/arm/ioperm.c. cd $(DIR_APP) && sed "/asm\/page.h/d" -i ports/sysdeps/unix/sysv/linux/arm/ioperm.c -else - cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/$(THISAPP)-dont_use_origin_on_privil_exec.patch endif ifeq "$(ROOT)" "" -ifeq "$(MACHINE)" "i586" - cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/$(THISAPP)-linux_types-1.patch - cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/$(THISAPP)-inotify-1.patch -endif # This locale causes a loop on bash login - exclude it cd $(DIR_APP) && sed -i '/vi_VN.TCVN/d' localedata/SUPPORTED ifeq "$(MACHINE_TYPE)" "arm" @@ -150,9 +135,6 @@ ifeq "$(ROOT)" "" touch /etc/ld.so.conf cd $(DIR_SRC)/glibc-build && make $(MAKETUNING) $(EXTRA_MAKE) cd $(DIR_SRC)/glibc-build && make $(EXTRA_INSTALL) install -ifeq "$(MACHINE)" "i586" - cp -v $(DIR_APP)/sysdeps/unix/sysv/linux/inotify.h /usr/include/sys -endif else -mkdir /tools/etc touch /tools/etc/ld.so.conf diff --git a/lfs/linux-libc-header b/lfs/linux-libc-header deleted file mode 100644 index a2ff9d3..0000000 --- a/lfs/linux-libc-header +++ /dev/null @@ -1,105 +0,0 @@ -############################################################################### -# # -# IPFire.org - A linux based firewall # -# Copyright (C) 2007 Michael Tremer & Christian Schmidt # -# # -# This program is free software: you can redistribute it and/or modify # -# it under the terms of the GNU General Public License as published by # -# the Free Software Foundation, either version 3 of the License, or # -# (at your option) any later version. # -# # -# This program is distributed in the hope that it will be useful, # -# but WITHOUT ANY WARRANTY; without even the implied warranty of # -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # -# GNU General Public License for more details. # -# # -# You should have received a copy of the GNU General Public License # -# along with this program. If not, see <http://www.gnu.org/licenses/>. # -# # -############################################################################### - -############################################################################### -# Definitions -############################################################################### - -include Config - -VER = 2.6.12.0 - -THISAPP = linux-libc-headers-$(VER) -DL_FILE = $(THISAPP).tar.bz2 -DL_FROM = $(URL_IPFIRE) -DIR_APP = $(DIR_SRC)/$(THISAPP) - -ifeq "$(ROOT)" "" -ifeq "$(LFS_PASS)" "install" - TARGET = $(DIR_INFO)/$(THISAPP)-install -else - TARGET = $(DIR_INFO)/$(THISAPP) -endif -else - TARGET = $(DIR_INFO)/$(THISAPP)-tools1 -endif - -############################################################################### -# Top-level Rules -############################################################################### -objects = $(DL_FILE) - -$(DL_FILE) = $(DL_FROM)/$(DL_FILE) - -$(DL_FILE)_MD5 = eae2f562afe224ad50f65a6acfb4252c - -install : $(TARGET) - -check : $(patsubst %,$(DIR_CHK)/%,$(objects)) - -download :$(patsubst %,$(DIR_DL)/%,$(objects)) - -md5 : $(subst %,%_MD5,$(objects)) - -############################################################################### -# Downloading, checking, md5sum -############################################################################### - -$(patsubst %,$(DIR_CHK)/%,$(objects)) : - @$(CHECK) - -$(patsubst %,$(DIR_DL)/%,$(objects)) : - @$(LOAD) - -$(subst %,%_MD5,$(objects)) : - @$(MD5) - -############################################################################### -# Installation Details -############################################################################### - -$(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects)) - @$(PREBUILD) - @rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar jxf $(DIR_DL)/$(DL_FILE) -ifeq "$(ROOT)" "" -ifeq "$(LFS_PASS)" "install" - -mkdir -p /opt/$(MACHINE)-uClibc - cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/$(THISAPP)-inotify-3.patch - cd $(DIR_APP) && install -dv /opt/$(MACHINE)-uClibc/usr/include/asm - cd $(DIR_APP) && cp -Rv include/asm-i386/* /opt/$(MACHINE)-uClibc/usr/include/asm - cd $(DIR_APP) && cp -Rv include/linux /opt/$(MACHINE)-uClibc/usr/include - cd $(DIR_APP) && chown -Rv root:root /opt/$(MACHINE)-uClibc/usr/include/{asm,linux} - cd $(DIR_APP) && find /opt/$(MACHINE)-uClibc/usr/include/{asm,linux} -type d -exec chmod -v 755 {} \; - cd $(DIR_APP) && find /opt/$(MACHINE)-uClibc/usr/include/{asm,linux} -type f -exec chmod -v 644 {} \; -else - cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/$(THISAPP)-inotify-3.patch - cd $(DIR_APP) && install -dv /usr/include/asm - cd $(DIR_APP) && cp -Rv include/asm-i386/* /usr/include/asm - cd $(DIR_APP) && cp -Rv include/linux /usr/include - cd $(DIR_APP) && chown -Rv root:root /usr/include/{asm,linux} - cd $(DIR_APP) && find /usr/include/{asm,linux} -type d -exec chmod -v 755 {} \; - cd $(DIR_APP) && find /usr/include/{asm,linux} -type f -exec chmod -v 644 {} \; -endif -else - cd $(DIR_APP) && cp -Rv include/asm-i386 /tools/include/asm - cd $(DIR_APP) && cp -Rv include/linux /tools/include -endif - @rm -rf $(DIR_APP) - @$(POSTBUILD) diff --git a/lfs/man b/lfs/man index c5f847f..04aed20 100644 --- a/lfs/man +++ b/lfs/man @@ -74,6 +74,7 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects)) cd $(DIR_APP) && mv man/es{_ES.88591,} cd $(DIR_APP) && mv man/it{_IT.88591,} cd $(DIR_APP) && mv man/ja{_JP.eucJP,} + cd $(DIR_APP) && sed -i "s/-I-//g" {lib,src}/Makefile* cd $(DIR_APP) && sed -i 's,\*_\*,??,' man/Makefile.in cd $(DIR_APP) && sed -i '/\t\/usr\/man/d' src/man_db.conf.in cd $(DIR_APP) && echo -e "#define WEB_BROWSER \"exec /usr/bin/lynx\"" >> include/manconfig.h.in diff --git a/lfs/mbr b/lfs/mbr index 077efa7..c43f2fd 100644 --- a/lfs/mbr +++ b/lfs/mbr @@ -24,7 +24,7 @@ include Config -VER = 1.1.8 +VER = 1.1.11 THISAPP = mbr-$(VER) DL_FILE = $(THISAPP).tar.gz @@ -41,7 +41,7 @@ objects = $(DL_FILE) $(DL_FILE) = $(DL_FROM)/$(DL_FILE) -$(DL_FILE)_MD5 = da195c75b26bd45ecbb113b317996f9a +$(DL_FILE)_MD5 = 4e406ded185f94c2d2bf5fc793ac1842 install : $(TARGET) @@ -71,7 +71,7 @@ $(subst %,%_MD5,$(objects)) : $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects)) @$(PREBUILD) @rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar zxf $(DIR_DL)/$(DL_FILE) - cd $(DIR_APP) && ./configure + cd $(DIR_APP) && ./configure --prefix=/usr cd $(DIR_APP) && make $(MAKETUNING) cd $(DIR_APP) && make install @rm -rf $(DIR_APP) diff --git a/lfs/sdl b/lfs/sdl index 2716f3f..5f5ecdc 100644 --- a/lfs/sdl +++ b/lfs/sdl @@ -77,10 +77,8 @@ dist: $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects)) @$(PREBUILD) @rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar zxf $(DIR_DL)/$(DL_FILE) -ifeq "$(MACHINE_TYPE)" "arm" cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/SDL-1.2.11-asm-page.h.patch cd $(DIR_APP) && sed "/asm\/page.h/d" -i src/video/fbcon/SDL_fbvideo.c -endif cd $(DIR_APP) && ./configure --prefix=/usr cd $(DIR_APP) && make $(MAKETUNING) cd $(DIR_APP) && make install diff --git a/lfs/usb-stick b/lfs/usb-stick index 4c5e716..30a1475 100644 --- a/lfs/usb-stick +++ b/lfs/usb-stick @@ -1,7 +1,7 @@ ############################################################################### # # # IPFire.org - A linux based firewall # -# Copyright (C) 2010 IPFire Team <info(a)ipfire.org> # +# Copyright (C) 2007-2012 IPFire Team <info(a)ipfire.org> # # # # This program is free software: you can redistribute it and/or modify # # it under the terms of the GNU General Public License as published by # @@ -92,7 +92,7 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects)) COUNT=$$((`du -k -s $(IMGfs) | awk '{print $$1}'` + 32 )); \ dd bs=1k if=/dev/zero of=$(IMGhdd) count=$$COUNT # write mbr before partitioning save a 'not msdos fs' warning from sfdisk - /usr/local/sbin/install-mbr -f $(IMGhdd) + /usr/sbin/install-mbr -f $(IMGhdd) echo -e "0,,6,*\n;\n;\n;" | sfdisk -qLD -H 64 -S 32 $(IMGhdd) # copy the entire partition, make the fs and dd back dd if=$(IMGfs) of=$(IMGhdd) bs=512 seek=32 diff --git a/make.sh b/make.sh index 2c52ad1..84447f5 100755 --- a/make.sh +++ b/make.sh @@ -265,11 +265,7 @@ buildtoolchain() { lfsmake1 binutils PASS=1 lfsmake1 gcc PASS=1 export PATH=$BASEDIR/build/usr/local/bin:$BASEDIR/build/tools/bin:$PATH - if [ "${MACHINE_TYPE}" = "arm" ]; then - lfsmake1 linux TOOLS=1 HEADERS=1 - else - lfsmake1 linux-libc-header - fi + lfsmake1 linux TOOLS=1 HEADERS=1 lfsmake1 glibc lfsmake1 cleanup-toolchain PASS=1 lfsmake1 fake-environ @@ -306,11 +302,7 @@ buildbase() { LOGFILE="$BASEDIR/log/_build.base.log" export LOGFILE lfsmake2 stage2 - if [ "${MACHINE_TYPE}" = "arm" ]; then - lfsmake2 linux HEADERS=1 - else - lfsmake2 linux-libc-header - fi + lfsmake2 linux HEADERS=1 lfsmake2 man-pages lfsmake2 glibc lfsmake2 tzdata diff --git a/src/patches/glibc-2.3.6-dont_use_origin_on_privil_exec.patch b/src/patches/glibc-2.3.6-dont_use_origin_on_privil_exec.patch deleted file mode 100644 index 26c8ac8..0000000 --- a/src/patches/glibc-2.3.6-dont_use_origin_on_privil_exec.patch +++ /dev/null @@ -1,67 +0,0 @@ -diff -Naur glibc-2.3.6.org/elf/dl-load.c glibc-2.3.6/elf/dl-load.c ---- glibc-2.3.6.org/elf/dl-load.c 2005-04-06 04:50:10.000000000 +0200 -+++ glibc-2.3.6/elf/dl-load.c 2010-10-19 17:41:09.000000000 +0200 -@@ -176,8 +176,7 @@ - - - static size_t --is_dst (const char *start, const char *name, const char *str, -- int is_path, int secure) -+is_dst (const char *start, const char *name, const char *str, int is_path) - { - size_t len; - bool is_curly = false; -@@ -206,11 +205,6 @@ - && (!is_path || name[len] != ':')) - return 0; - -- if (__builtin_expect (secure, 0) -- && ((name[len] != '\0' && (!is_path || name[len] != ':')) -- || (name != start + 1 && (!is_path || name[-2] != ':')))) -- return 0; -- - return len; - } - -@@ -225,13 +219,12 @@ - { - size_t len; - -- /* $ORIGIN is not expanded for SUID/GUID programs (except if it -- is $ORIGIN alone) and it must always appear first in path. */ -+ /* $ORIGIN is not expanded for SUID/GUID programs. */ - ++name; -- if ((len = is_dst (start, name, "ORIGIN", is_path, -- INTUSE(__libc_enable_secure))) != 0 -- || (len = is_dst (start, name, "PLATFORM", is_path, 0)) != 0 -- || (len = is_dst (start, name, "LIB", is_path, 0)) != 0) -+ if (((len = is_dst (start, name, "ORIGIN", is_path)) != 0 -+ && !INTUSE(__libc_enable_secure)) -+ || (len = is_dst (start, name, "PLATFORM", is_path)) != 0 -+ || (len = is_dst (start, name, "LIB", is_path)) != 0) - ++cnt; - - name = strchr (name + len, '$'); -@@ -263,12 +256,17 @@ - size_t len; - - ++name; -- if ((len = is_dst (start, name, "ORIGIN", is_path, -- INTUSE(__libc_enable_secure))) != 0) -- repl = l->l_origin; -- else if ((len = is_dst (start, name, "PLATFORM", is_path, 0)) != 0) -+ if ((len = is_dst (start, name, "ORIGIN", is_path)) != 0) -+ { -+ // Ignore this path at SUID/GUID -+ if (INTUSE(__libc_enable_secure)) -+ repl = (const char *) -1; -+ else -+ repl = l->l_origin; -+ } -+ else if ((len = is_dst (start, name, "PLATFORM", is_path)) != 0) - repl = GLRO(dl_platform); -- else if ((len = is_dst (start, name, "LIB", is_path, 0)) != 0) -+ else if ((len = is_dst (start, name, "LIB", is_path)) != 0) - repl = DL_DST_LIB; - - if (repl != NULL && repl != (const char *) -1) diff --git a/src/patches/glibc-2.3.6-inotify-1.patch b/src/patches/glibc-2.3.6-inotify-1.patch deleted file mode 100644 index 30af30c..0000000 --- a/src/patches/glibc-2.3.6-inotify-1.patch +++ /dev/null @@ -1,45 +0,0 @@ -Submitted By: Dan Nicholson <dnicholson at linuxfromscratch dot org> -Date: 2006-09-01 -Initial Package Version: 2.3.6 -Origin: udev-096, syscall functions generated by Alexander E. Patrakov -Upstream Status: Added to syscall list in 2.4 -Description: Adds inotify syscall functions for use in userspace. Minimal - syscall functions borrowed from udev local implementation to - provide system inotify support. -Testcase: dovecot-1.0rc2, ./configure --with-notify=inotify - -diff -pNur glibc-2.3.6.orig/sysdeps/unix/sysv/linux/inotify.h glibc-2.3.6/sysdeps/unix/sysv/linux/inotify.h ---- glibc-2.3.6.orig/sysdeps/unix/sysv/linux/inotify.h 1970-01-01 00:00:00.000000000 +0000 -+++ glibc-2.3.6/sysdeps/unix/sysv/linux/inotify.h 2006-08-01 05:48:27.000000000 +0000 -@@ -0,0 +1,31 @@ -+/* -+ * Inode based directory notification for Linux -+ * -+ * Copyright (C) 2005 John McCutchan -+ */ -+ -+#ifndef _SYS_INOTIFY_H -+#define _SYS_INOTIFY_H -+ -+#include <stdint.h> -+#include <linux/inotify.h> -+#include <asm/unistd.h> -+ -+extern long int syscall (long int __sysno, ...) __THROW; -+ -+static inline int inotify_init(void) -+{ -+ return syscall(__NR_inotify_init); -+} -+ -+static inline int inotify_add_watch(int fd, const char *name, uint32_t mask) -+{ -+ return syscall(__NR_inotify_add_watch, fd, name, mask); -+} -+ -+static inline int inotify_rm_watch (int fd, uint32_t wd) -+{ -+ return syscall(__NR_inotify_rm_watch, fd, wd); -+} -+ -+#endif /* _SYS_INOTIFY_H */ diff --git a/src/patches/glibc-2.3.6-linux_types-1.patch b/src/patches/glibc-2.3.6-linux_types-1.patch deleted file mode 100644 index a365b81..0000000 --- a/src/patches/glibc-2.3.6-linux_types-1.patch +++ /dev/null @@ -1,33 +0,0 @@ -Submitted By: DJ Lucas <dj at linuxfromscratch dot org> -Date: 2006-04-05 -Initial Package Version: 2.3.6 -Upstream Status: Committed -Origin: Glibc CVS -Description: Fixes build errors where linux/types.h is included after sys/kd.h. - -diff -Naur glibc-2.3.6-orig/sysdeps/unix/sysv/linux/sys/kd.h glibc-2.3.6/sysdeps/unix/sysv/linux/sys/kd.h ---- glibc-2.3.6-orig/sysdeps/unix/sysv/linux/sys/kd.h 2001-07-05 23:56:21.000000000 -0500 -+++ glibc-2.3.6/sysdeps/unix/sysv/linux/sys/kd.h 2006-04-04 21:40:50.000000000 -0500 -@@ -1,4 +1,4 @@ --/* Copyright (C) 1996, 1997 Free Software Foundation, Inc. -+/* Copyright (C) 1996, 1997, 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or -@@ -21,9 +21,15 @@ - - /* Make sure the <linux/types.h> header is not loaded. */ - #ifndef _LINUX_TYPES_H --# define _LINUX_TYPES_H 1 -+# define _LINUX_TYPES_H 1 -+# define __undef_LINUX_TYPES_H - #endif - - #include <linux/kd.h> - -+#ifdef __undef_LINUX_TYPES_H -+# undef _LINUX_TYPES_H -+# undef __undef_LINUX_TYPES_H -+#endif -+ - #endif /* sys/kd.h */ diff --git a/src/patches/linux-libc-headers-2.6.12.0-inotify-3.patch b/src/patches/linux-libc-headers-2.6.12.0-inotify-3.patch deleted file mode 100644 index 4acfd8f..0000000 --- a/src/patches/linux-libc-headers-2.6.12.0-inotify-3.patch +++ /dev/null @@ -1,115 +0,0 @@ -Submitted By: Dan Nicholson <dnicholson at linuxfromscratch dot org> -Date: 2006-08-01 -Initial Package Version: 2.6.12.0 -Origin: linux-2.6.16 series, syscalls diffed by Alexander Patrakov -Upstream Status: Project is dead -Description: Adds userspace headers and syscalls for inotify -Testcase: dovecot-1.0rc2, ./configure --with-notify=inotify - -diff -pNur linux-libc-headers-2.6.12.0.orig/include/asm-i386/unistd.h linux-libc-headers-2.6.12.0/include/asm-i386/unistd.h ---- linux-libc-headers-2.6.12.0.orig/include/asm-i386/unistd.h 2005-07-06 00:17:47.000000000 +0000 -+++ linux-libc-headers-2.6.12.0/include/asm-i386/unistd.h 2006-08-01 05:56:42.000000000 +0000 -@@ -294,8 +294,13 @@ - #define __NR_add_key 286 - #define __NR_request_key 287 - #define __NR_keyctl 288 -+/* #define __NR_ioprio_set 289 */ -+/* #define __NR_ioprio_get 290 */ -+#define __NR_inotify_init 291 -+#define __NR_inotify_add_watch 292 -+#define __NR_inotify_rm_watch 293 - --#define NR_syscalls 289 -+#define NR_syscalls 294 - - /* - * user-visible error numbers are in the range -1 - -128: see -diff -pNur linux-libc-headers-2.6.12.0.orig/include/asm-ppc/unistd.h linux-libc-headers-2.6.12.0/include/asm-ppc/unistd.h ---- linux-libc-headers-2.6.12.0.orig/include/asm-ppc/unistd.h 2005-07-06 00:17:23.000000000 +0000 -+++ linux-libc-headers-2.6.12.0/include/asm-ppc/unistd.h 2006-08-01 05:56:42.000000000 +0000 -@@ -277,8 +277,13 @@ - #define __NR_request_key 270 - #define __NR_keyctl 271 - #define __NR_waitid 272 -+/* #define __NR_ioprio_set 273 */ -+/* #define __NR_ioprio_get 274 */ -+#define __NR_inotify_init 275 -+#define __NR_inotify_add_watch 276 -+#define __NR_inotify_rm_watch 277 - --#define __NR_syscalls 273 -+#define __NR_syscalls 278 - - #define __NR(n) #n - -diff -pNur linux-libc-headers-2.6.12.0.orig/include/linux/inotify.h linux-libc-headers-2.6.12.0/include/linux/inotify.h ---- linux-libc-headers-2.6.12.0.orig/include/linux/inotify.h 1970-01-01 00:00:00.000000000 +0000 -+++ linux-libc-headers-2.6.12.0/include/linux/inotify.h 2006-08-01 05:56:42.000000000 +0000 -@@ -0,0 +1,67 @@ -+/* -+ * Inode based directory notification for Linux -+ * -+ * Copyright (C) 2005 John McCutchan -+ */ -+ -+#ifndef _LINUX_INOTIFY_H -+#define _LINUX_INOTIFY_H -+ -+#include <linux/types.h> -+ -+/* -+ * struct inotify_event - structure read from the inotify device for each event -+ * -+ * When you are watching a directory, you will receive the filename for events -+ * such as IN_CREATE, IN_DELETE, IN_OPEN, IN_CLOSE, ..., relative to the wd. -+ */ -+struct inotify_event { -+ __s32 wd; /* watch descriptor */ -+ __u32 mask; /* watch mask */ -+ __u32 cookie; /* cookie to synchronize two events */ -+ __u32 len; /* length (including nulls) of name */ -+ char name[0]; /* stub for possible name */ -+}; -+ -+/* the following are legal, implemented events that user-space can watch for */ -+#define IN_ACCESS 0x00000001 /* File was accessed */ -+#define IN_MODIFY 0x00000002 /* File was modified */ -+#define IN_ATTRIB 0x00000004 /* Metadata changed */ -+#define IN_CLOSE_WRITE 0x00000008 /* Writtable file was closed */ -+#define IN_CLOSE_NOWRITE 0x00000010 /* Unwrittable file closed */ -+#define IN_OPEN 0x00000020 /* File was opened */ -+#define IN_MOVED_FROM 0x00000040 /* File was moved from X */ -+#define IN_MOVED_TO 0x00000080 /* File was moved to Y */ -+#define IN_CREATE 0x00000100 /* Subfile was created */ -+#define IN_DELETE 0x00000200 /* Subfile was deleted */ -+#define IN_DELETE_SELF 0x00000400 /* Self was deleted */ -+#define IN_MOVE_SELF 0x00000800 /* Self was moved */ -+ -+/* the following are legal events. they are sent as needed to any watch */ -+#define IN_UNMOUNT 0x00002000 /* Backing fs was unmounted */ -+#define IN_Q_OVERFLOW 0x00004000 /* Event queued overflowed */ -+#define IN_IGNORED 0x00008000 /* File was ignored */ -+ -+/* helper events */ -+#define IN_CLOSE (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE) /* close */ -+#define IN_MOVE (IN_MOVED_FROM | IN_MOVED_TO) /* moves */ -+ -+/* special flags */ -+#define IN_ONLYDIR 0x01000000 /* only watch the path if it is a directory */ -+#define IN_DONT_FOLLOW 0x02000000 /* don't follow a sym link */ -+#define IN_MASK_ADD 0x20000000 /* add to the mask of an already existing watch */ -+#define IN_ISDIR 0x40000000 /* event occurred against dir */ -+#define IN_ONESHOT 0x80000000 /* only send event once */ -+ -+/* -+ * All of the events - we build the list by hand so that we can add flags in -+ * the future and not break backward compatibility. Apps will get only the -+ * events that they originally wanted. Be sure to add new events here! -+ */ -+#define IN_ALL_EVENTS (IN_ACCESS | IN_MODIFY | IN_ATTRIB | IN_CLOSE_WRITE | \ -+ IN_CLOSE_NOWRITE | IN_OPEN | IN_MOVED_FROM | \ -+ IN_MOVED_TO | IN_DELETE | IN_CREATE | IN_DELETE_SELF | \ -+ IN_MOVE_SELF) -+ -+ -+#endif /* _LINUX_INOTIFY_H */ hooks/post-receive -- IPFire 2.x development tree

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[IPFire-SCM] [git.ipfire.org] IPFire 3.x development tree branch, master, updated. cb8d2bc602b6c360daafa34f5c856066bf4f2f1a
by git＠ipfire.org 26 Jul '12

26 Jul '12

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "IPFire 3.x development tree". The branch, master has been updated via cb8d2bc602b6c360daafa34f5c856066bf4f2f1a (commit) via b45eecb9d66a5070290f04486cb1c5c88ca38351 (commit) via 9f394aa3cad37ad8e62fcbed4f4dbd6a60b12a4e (commit) via b1c97f06eea8441b164dd12122eeda482f27fbd3 (commit) from cb570e99064e25ae4f39b6299fa911db9d267fa1 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit cb8d2bc602b6c360daafa34f5c856066bf4f2f1a Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Thu Jul 26 21:03:00 2012 +0200 transifex-client: New package. Needed to maintain the translations for pakfire and some more IPFire packages. commit b45eecb9d66a5070290f04486cb1c5c88ca38351 Merge: b1c97f0 9f394aa Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Thu Jul 26 21:02:22 2012 +0200 Merge remote-tracking branch 'stevee/python-setuptools' commit 9f394aa3cad37ad8e62fcbed4f4dbd6a60b12a4e Author: Stefan Schantl <stefan.schantl(a)ipfire.org> Date: Thu Jul 26 19:46:15 2012 +0200 python-setuptools: Update to 0.6.28. Fixes #10189. commit b1c97f06eea8441b164dd12122eeda482f27fbd3 Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Thu Jul 26 20:47:00 2012 +0200 libmpc: Update to 1.0 (0.9 is compat package). ----------------------------------------------------------------------- Summary of changes: libmpc/libmpc.nm | 50 +++++++++++++++++++++++++------ python-setuptools/python-setuptools.nm | 14 ++++++-- transifex-client/transifex-client.nm | 41 ++++++++++++++++++++++++++ 3 files changed, 91 insertions(+), 14 deletions(-) create mode 100644 transifex-client/transifex-client.nm Difference in files: diff --git a/libmpc/libmpc.nm b/libmpc/libmpc.nm index 9f51969..a1d1d5c 100644 --- a/libmpc/libmpc.nm +++ b/libmpc/libmpc.nm @@ -4,35 +4,57 @@ ############################################################################### name = libmpc -version = 0.9 -release = 2 +version = 1.0 +release = 1 +thisapp = mpc-%{version} + +compat_version = 0.9 groups = System/Libraries url = http://www.multiprecision.org/ license = LGPLv2.1+ summary = Mpc is a C library for the arithmetic of complex numbers. -thisapp = mpc-%{version} - description - Mpc is a C library for the arithmetic of complex numbers with \ - arbitrarily high precision and correct rounding of the result. \ + Mpc is a C library for the arithmetic of complex numbers with + arbitrarily high precision and correct rounding of the result. It is built upon and follows the same principles as Mpfr. end source_dl = http://www.multiprecision.org/mpc/download/ +sources += mpc-%{compat_version}.tar.gz build requires - gmp-devel>=4.3.2 - mpfr-devel>=2.4.2 + gmp-devel >= 4.3.2 + mpfr-devel >= 2.4.2 end - # http://lists.gforge.inria.fr/pipermail/mpc-discuss/2011-February/000805.html - export EGREP=egrep + configure_options += \ + --enable-shared \ + --disable-static + + build_cmds + cd %{DIR_SRC}/mpc-%{compat_version} + EGREP=egrep ./configure \ + %{configure_options} + + make %{PARALLELISMFLAGS} + end test + export LD_LIBRARY_PATH=$(pwd)/src/.libs make check + + cd %{DIR_SRC}/mpc-%{compat_version} + export LD_LIBRARY_PATH=$(pwd)/src/.libs + make check + end + + install_cmds + cd %{DIR_SRC}/mpc-%{compat_version} + install -m 644 src/.libs/libmpc.so.2.0.0 %{BUILDROOT}%{libdir} + ln -svf libmpc.so.2.0.0 %{BUILDROOT}%{libdir}/libmpc.so.2 end end @@ -43,6 +65,14 @@ packages template DEVEL end + package %{name}-compat + summary = Compat libraries of %{thisapp}. + + files + %{libdir}/libmpc.so.2* + end + end + package %{name}-debuginfo template DEBUGINFO end diff --git a/python-setuptools/python-setuptools.nm b/python-setuptools/python-setuptools.nm index ad07679..e4d8fe8 100644 --- a/python-setuptools/python-setuptools.nm +++ b/python-setuptools/python-setuptools.nm @@ -4,10 +4,10 @@ ############################################################################### name = python-setuptools -version = 0.6c9 +version = 0.6.28 release = 1 arch = noarch -thisapp = setuptools-%{version} +thisapp = distribute-%{version} maintainer = Michael Tremer <michael.tremer(a)ipfire.org> groups = Development/Libraries @@ -21,7 +21,7 @@ description especially ones that have dependencies on other packages. end -source_dl = +source_dl = http://pypi.python.org/packages/source/d/distribute/ build requires @@ -30,7 +30,12 @@ build prepare_cmds # Scripts seem to have a wrong hashbang - find . -name "*.py" | xargs sed -i "1s@^#!python@#!/usr/bin/python@" + for file in setuptools/command/easy_install.py distribute_setup.py ; do + sed -i '1s|^#!python|#!/usr/bin/python|' $file + done + + # Fix file permissions. + chmod -R 644 %{DIR_APP}/distribute.egg-info end build @@ -42,6 +47,7 @@ build # XXX %{PYTHON_EXTRACT_EGG} /usr/lib/python*/site-packages/%{name}*.egg rm -vf %{BUILDROOT}/usr/lib/python*/site-packages/setuptools/*.exe + rm -rvf %{BUILDROOT}/usr/lib/python*/site-packages/setuptools/tests end end diff --git a/transifex-client/transifex-client.nm b/transifex-client/transifex-client.nm new file mode 100644 index 0000000..39e03fa --- /dev/null +++ b/transifex-client/transifex-client.nm @@ -0,0 +1,41 @@ +############################################################################### +# IPFire.org - An Open Source Firewall Solution # +# Copyright (C) - IPFire Development Team <info(a)ipfire.org> # +############################################################################### + +name = transifex-client +version = 0.7.3 +release = 1 +arch = noarch + +groups = Development/Tools +url = http://transifex.org +license = GPLv2 +summary = A tool for creating scanners (text pattern recognizers). + +description + The Transifex Command-line Client is a command line tool that enables + you to easily manage your translations within a project without the + need of an elaborate UI system. +end + +source_dl = http://pypi.python.org/packages/source/t/transifex-client + +build + requires + python-devel + python-setuptools >= 0.6.28 + end + + build + python setup.py build + end + + install + python setup.py install -O1 --skip-build --root %{BUILDROOT} + end +end + +packages + package %{name} +end hooks/post-receive -- IPFire 3.x development tree

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[IPFire-SCM] [git.ipfire.org] IPFire 3.x development tree branch, master, updated. cb570e99064e25ae4f39b6299fa911db9d267fa1
by git＠ipfire.org 26 Jul '12

26 Jul '12

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